Abstract

e).

IPC Classes  ?

• F16D 55/228 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
• F16D 65/095 - Pivots or supporting members therefor
• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• F16D 65/00 - Parts or details of brakes

Abstract

A vehicular disc brake capable of satisfactorily releasing, to the outside air, brake heat which is generated by sliding contact between a lining and a disc rotor, while securing a lining thickness and maintaining a good brake feeling. A vehicular disc brake 1 is provided with: a caliper body 3 formed by connecting a pair of action parts 3a, 3b, which are disposed to face each other with a disc rotor 2 therebetween and have cylinder holes 3i, with a bridge part 3c striding an outer periphery of the disc rotor 2 and having a first ceiling opening 3g and a second ceiling opening 3h; and an inner friction pad 4 disposed on a vehicle inner side and an outer friction pad 5 disposed on a vehicle outer side to hold the disc rotor 2 therebetween. The inner friction pad 4 and the outer friction pad 5 are formed by attaching linings 4a, 5a to metal back plates 4b, 5b, respectively, and the back plates 4b, 5b are provided with heat dissipation pieces 4c, 4d, 5c, 5d that project outward in a disc radial direction and are inserted into the first ceiling opening 3g and the second ceiling opening 3h.

IPC Classes  ?

• B60T 5/00 - Vehicle modifications to facilitate cooling of brakes
• F16D 65/02 - Braking members; Mounting thereof
• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• F16D 65/847 - Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
• F16D 55/228 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side

Abstract

This caliper body for a vehicular disc brake is capable of obtaining satisfactory braking feel by suppressing the stiffness of the periphery of an intermediate bridge part to be low using a working fluid communication hole, and by satisfactorily keeping the balance of stress exerted on a caliper body during braking. The caliper body 3 comprises a pair of action parts 3a and a bridge part, wherein the action parts 3a each has a plurality of cylinder holes 7 arranged in the disc circumferential direction, and a working fluid communication hole 12 that provides communication between the bottom sections of the adjacent cylinder holes 7. The bridge part has a disc turn-out side bridge part, a disc turn-in side bridge part, and an intermediate bridge part, and a first ceiling opening and a second ceiling opening are provided between the intermediate bridge part and the disc turn-in side bridge part and between the intermediate bridge part and the disc turn-out side bridge part. The working fluid communication hole 12 is formed such that a disc radial center section C1 is offset closer to the outer side in the disc radial direction than the center axis CL1 of each of the cylinder holes 7.

IPC Classes  ?

• F16D 65/02 - Braking members; Mounting thereof
• F16D 65/097 - Resilient means interposed between pads and supporting members
• F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
• F16D 121/04 - Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
• F16D 125/04 - Cylinders
• F16D 55/228 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side

Abstract

An exhaust gas purification device includes a selective catalytic reduction (SCR) device arranged in a downstream exhaust flow path, and a mixer arranged upstream of the selective catalytic reduction device and including a helical flow path that helically guides the flow of exhaust gas from an internal combustion engine. In the exhaust gas purification device, the mixer includes a casing, an injector, and a partition plate. The casing has an upstream opening and a downstream opening and is provided with the helical flow path therein. The injector is arranged in the helical flow path to add a reducing agent to the helical flow path. The partition plate is continuous from the upstream opening to the downstream opening. The partition plate is arranged to divide the inner space of the casing into an upstream side and a downstream side, and defines the helical flow path.

IPC Classes  ?

• F01N 3/28 - Construction of catalytic reactors
• B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
• B01F 5/00 - Flow mixers; Mixers for falling materials, e.g. solid particles

Abstract

A brake device (1) comprises a wheel brake (100) having a brake shoe (120) accommodated in a drum (110). The brake device (1) comprises: an input lever (20) that is pivotably connected to the drum (110); and an operation amount detection device (50) that detects the operation amount of the input lever (20). At least part of the operation amount detection device (50) is accommodated in the drum (110), and has a rotation angle sensor (51) that detects the pivot amount of a support shaft (22) of the input lever (20) inserted in the drum (110). With this configuration, the operation amount of the input lever (20) can be detected and the number of components can also be reduced.

IPC Classes  ?

• B60T 7/02 - Brake-action initiating means for personal initiation
• B60T 17/22 - Devices for monitoring or checking brake systems; Signal devices
• F16D 65/00 - Parts or details of brakes

Abstract

An operation amount detection device (50) is used in a handlebar vehicle in which a pivot (40) fixed to a holder (10) is inserted into one end of a pivot insertion hole (25) of a brake lever (20A), with the brake lever (20A) being freely rotatable about an axis of the pivot (40). The operation amount detection device (50) includes a rotation angle sensor (51) fixed to the holder (10) and a detection shaft (52) fitted into another end of the pivot insertion hole (25). A center axis of the pivot (40) and a center axis of the detection shaft (52) are arranged coaxially, the brake lever (20A) and the detection shaft (52) co-rotate, and the rotation angle sensor (51) detects a rotation angle of the detection shaft (52). According to this configuration, a structure around the brake lever (20A) can be made simple and lightweight.

IPC Classes  ?

• B62K 23/06 - Levers
• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• B62M 25/04 - Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated
• G05G 25/00 - Other details, features or accessories of control mechanisms, e.g. supporting intermediate members elastically
• G05G 1/04 - Controlling members for hand-actuation by pivoting movement, e.g. levers
• B60T 7/02 - Brake-action initiating means for personal initiation
• B60T 11/18 - Connection thereof to initiating means

Abstract

A control device (1A) for a vehicle comprises an operation amount detection device (50), a hydraulic pressure control device (100), and an electronic control device (200A). The operation amount detection device (50) detects a turning amount of a brake lever (20A) via a rotation angle sensor (51). The electronic control device (200A) is provided with a hydraulic pressure calculation unit (220) that estimates brake hydraulic pressure generated from a master cylinder (60) on the basis of the turning amount of the brake lever (20A), and a control unit (230) that controls the hydraulic pressure control device (100) on the basis of the estimated value of brake hydraulic pressure. With this configuration, motive power generated by operation of the brake lever (20A) can be detected while the number of components in the handlebar vehicle are reduced.

IPC Classes  ?

• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• F16D 66/02 - Apparatus for indicating wear
• G05G 25/00 - Other details, features or accessories of control mechanisms, e.g. supporting intermediate members elastically
• G05G 1/04 - Controlling members for hand-actuation by pivoting movement, e.g. levers
• B60T 7/02 - Brake-action initiating means for personal initiation
• B60T 17/22 - Devices for monitoring or checking brake systems; Signal devices
• B60T 11/18 - Connection thereof to initiating means
• B60T 8/00 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
• B60T 8/171 - Detecting parameters used in the regulation; Measuring values used in the regulation
• B60T 8/172 - Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters

Abstract

An operation amount detection device (50A) is for a bar handle vehicle in which a pivot (40) fixed to a holder (10) is inserted into one end of a pivot insertion hole (25) of a brake lever (20A), and the brake lever (20A) is rotatable around the axis of the pivot (40). The operation amount detection device (50A) comprises a rotation angle sensor (51) fixed to the holder (10), and a detection shaft (55) fitted to the other end of the pivot insertion hole (25). The brake lever (20A) and the detection shaft (55) rotate together, and a magnet (58) is provided on the detection shaft (55). A magnetic detection unit (53) of the rotation angle sensor (51) faces the magnet (58) in a non-contact state and detects the amount of rotation of the magnet (58). With this configuration, it is possible to prevent water and foreign matter from entering the rotation angle sensor (51) with a simple structure.

IPC Classes  ?

• B62K 23/06 - Levers
• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• B62M 25/04 - Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated
• G05G 25/00 - Other details, features or accessories of control mechanisms, e.g. supporting intermediate members elastically
• G05G 1/04 - Controlling members for hand-actuation by pivoting movement, e.g. levers
• B60T 7/02 - Brake-action initiating means for personal initiation
• B60T 11/18 - Connection thereof to initiating means

Abstract

An electrical component unit (3) is equipped with a housing (33) which has a storage chamber (32) for storing an electrical component. The housing (33) has a ventilation hole (40) which connects the storage chamber (32) and the outside of the housing (33) to one another and has an opening (46) which opens to the outside. The housing (33) has a ventilated waterproof member (44) positioned so as to block the ventilation hole (40). A mesh section (47) having a plurality of holes (48) formed therein which have a smaller channel cross-sectional area than does the ventilation hole (40) is provided on the outside of the ventilated waterproof member (44) in the direction of ventilation of the ventilation hole (40). As a result, the present invention provides an electrical component unit which is capable of suppressing the intrusion into the housing of small objects such as bugs and foreign matter.

IPC Classes  ?

• H05K 5/06 - Hermetically-sealed casings
• B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

The vehicle drum brake comprises an anchor attachment part formed on a back plate, an anchor plate that rotatably supports a brake shoe, the anchor plate being fixed to the anchor attachment part, and a guide part that guides a brake cable coupled to a brake lever, the guide part being fixed inside of the anchor attachment part in the radial direction of the back plate, wherein a support part (50) is integrally provided on at least one of the back plate (13) and the anchor plate (21), the support part (50) abutting on the guide part (48) to support the guide part (48). Thus, the strength of the guide part against the brake cable can be increased.

IPC Classes  ?

• F16D 51/22 - Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots mechanically actuated
• F16D 65/09 - Pivots or supporting members therefor

Abstract

Provided is an electric parking brake device in which a parking brake mechanism is arranged in a back plate, and an electric actuator that exerts power for driving the parking brake mechanism is fixedly disposed outside the back plate, wherein an actuator case (40) of the electric actuator (38) is disposed above the rotating center (C1) of a wheel when a drum brake (B) is mounted on the wheel. Due to this configuration, it is possible to avoid an attack on the electric actuator due to external factors while a vehicle is traveling.

IPC Classes  ?

• F16D 51/22 - Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots mechanically actuated
• F16D 65/09 - Pivots or supporting members therefor
• F16D 65/22 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart
• F16D 121/24 - Electric or magnetic using motors
• F16D 125/60 - Cables or chains, e.g. Bowden cables
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

Provided is a caliper body for a vehicle disc brake which can be made lightweight and with which running can be improved for a caliper body formed by casting. The caliper body 5, which is provided with an action part 5a equipped with a cylinder hole 5d, a reaction part 5b equipped with reaction claws 5k, 5k, and a bridge part 5c arranged straddling a disc rotor 2, is formed by casting. The bridge part 5c is equipped with, on the outer surface thereof, a gate mark 5g formed by cutting off the gate after casting of the caliper body 5, and has, provided on the inner surface 5h corresponding to the gate mark 5g, a thinned portion 5j formed by slanted surfaces 5i, 5i that gradually become thinner toward the axial center C1 of the disc.

IPC Classes  ?

• F16D 65/02 - Braking members; Mounting thereof
• F16D 55/226 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially
• B22C 9/08 - Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
• B22C 9/28 - Moulds for peculiarly-shaped castings for wheels, rolls, or rollers

Abstract

The present invention provides: a multilayer sheet which contains a polyolefin resin and carbon fibers, and which is highly competitive in price; and a method for producing this multilayer sheet.　A multilayer sheet (100) according to the present invention comprises: a carbon fiber layer (20) which contains a woven fabric of carbon fibers; and polyolefin resin layers (10) which are in contact with the both surfaces of the carbon fiber layer (20). The carbon fiber layer (20) has a porosity of 10.0% or less. A method for producing this multilayer sheet (100) according to the present invention comprises a process of applying a surface treatment agent to the both surfaces of a woven fabric of carbon fibers, a process of superposing polyolefin resin sheets on the both surfaces of the woven fabric to which the surface treatment agent has been applied, and a process of melting the polyolefin resin by applying a pressure onto the laminate of the polyolefin resin sheets and the woven fabric, while heating the laminate, and subsequently cooling the laminate, thereby obtaining a multilayer sheet.

IPC Classes  ?

• B32B 5/10 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer reinforced with filaments
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression

Abstract

This electric parking brake device is provided with a brake cable of which one end is provided with an engaging piece engaged with a parking brake lever, and an electric actuator that has a drive shaft of which one end is linked to the other end of the brake cable and that can cause the drive shaft to reciprocate in an axial direction, wherein an insertion hole (50) is provided in one of a drive shaft (39) and a joint (48) secured to the brake cable, an insertion shaft part (39a) inserted through the insertion hole (50) is coaxially provided to the other of the joint (48) and the drive shaft (39), and an annular engaging member (49) that can be inserted through the insertion hole (50) along with the insertion shaft part (39a) is interposed between the inner periphery of the insertion hole (50) and the outer periphery of the insertion shaft part (39a) so as to link the joint (48) and the drive shaft (39). It is thereby possible to make the work of linking the brake cable and the drive shaft of the electric actuator easier and to increase assemblability.

IPC Classes  ?

• F16D 65/22 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• F16B 21/18 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding it; Stud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft - Details
• F16D 121/24 - Electric or magnetic using motors
• F16D 125/62 - Fixing arrangements therefor, e.g. cable end attachments

Abstract

A brake device (U1) is provided with a hydraulic brake system (K1) which causes a front wheel side wheel brake (F) to generate a braking force, and a mechanical brake system (K2) which directly operates a rear wheel side wheel brake (R) to generate a braking force. The brake device is also provided with a detecting means (31) for detecting the braking force of the rear wheel side wheel brake (R), and a control device (7). The control device (7) operates a pump (6) in accordance with the detection result from the detecting means (31). With this configuration, manufacturing costs can be suppressed and a reduction in size can be achieved.

IPC Classes  ?

• B62L 3/08 - Mechanisms specially adapted for braking more than one wheel
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 8/26 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

This brake device for a vehicle with a handlebar prevents twisting and wear from occurring in a turning base part of a knocker, wherein hydraulic pressure caused in a hydraulic pressure master cylinder 12 by the operation of a first operating lever 5 is supplied to a front wheel brake 2 to independently actuate the front wheel brake 2, a rear wheel brake 3 is actuated by the operation of a second operating lever 7, and the front wheel brake 2 is actuated through interlocking via an interlocking mechanism 6. The hydraulic pressure master cylinder 12 is disposed with the opening of a cylinder hole 12a oriented toward the front of a body. The first operating lever 5 is formed as being divided into a lever main body 25 and a knocker 26. The knocker 26 includes a turning base part 26b, a pulling means connecting arm 26e that connects an interlocking brake wire 24, and a working arm 26c that pushes a piston 14 to move, the pulling means connecting arm 26e and the working arm 26c being disposed in the same plane orthogonal to a pivot 23.

IPC Classes  ?

• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• B62L 3/08 - Mechanisms specially adapted for braking more than one wheel

Abstract

The present invention improves the durability of a diaphragm in a configuration where a suction valve provided with the diaphragm is provided. This vehicle brake hydraulic pressure control device is provided with a suction valve (6) disposed between a master cylinder (M) and the suction inlet of a pair of pumps (5a, 5b), wherein the suction valve (6) can be opened by a pressure difference between the brake hydraulic pressure on the master cylinder (M) side and the brake hydraulic pressure on the suction inlet side which becomes negative pressure under the actions of the pumps (5a, 5b). Each of the pumps (5a, 5b) is provided with a plunger, a suction valve, and a discharge valve. The pumps (5a, 5b) can discharge a brake liquid to a flow passage connected with the master cylinder (M) and a wheel brake (R), and are configured such that the discharge cycles of the brake liquid are different from each other by half a cycle.

IPC Classes  ?

• B60T 8/48 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure
• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• F04B 11/00 - Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
• F16K 15/06 - Check valves with guided rigid valve members with guided stems
• F16K 15/18 - Check valves with actuating mechanism; Combined check valves and actuated valves
• F16K 27/00 - Construction of housings; Use of materials therefor
• F16K 31/365 - Operating means; Releasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor the fluid acting on a diaphragm

Abstract

The present invention reduces production cost while achieving miniaturization, and improves discharge performance. A base body (100) is provided with: an inlet valve (2); an outlet valve (3); pumps (5a, 5b); a regulator (7); a suction valve (6); and a hydraulic pressure sensor (9). When one side surface of the base body (100) is divided into two areas by a reference surface (X1), the inlet valve (2), the outlet valve (3), and a reservoir (4) are arranged in one area, while the regulator (7), the suction valve (6), and the hydraulic pressure sensor (9) are arranged in the other area. Further, the inlet valve (2) and the regulator (7) are arranged at symmetrical positions with respect to the reference surface (X1), and the outlet valve (3) and the hydraulic pressure sensor (9) are arranged at symmetrical positions with respect to the reference surface (X1).

IPC Classes  ?

• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• F16K 15/18 - Check valves with actuating mechanism; Combined check valves and actuated valves
• F16K 17/22 - Excess-flow valves actuated by the difference of pressure between two places in the flow line
• F16K 31/365 - Operating means; Releasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor the fluid acting on a diaphragm

Abstract

The present invention improves the openability of a suction valve and achieves miniaturization. A suction valve (6) is opened by a pressure difference between a brake hydraulic pressure on a master cylinder (M) side and a brake hydraulic pressure on a suction inlet side which becomes negative pressure through actions of pumps (5a, 5b). The suction valve (6) is provided with a normally-closed one-way valve (61), a plunger (62) that abuts against a valve body of the one-way valve (61) to be opened, and a diaphragm (64) that pushes the plunger (62) when the suction inlet side becomes negative pressure through the actions of the pumps (5a, 5b), and biases the one-way valve (61) in an opening direction. The one-way valve (61) is housed in a housing part provided to a base body (100). The effective diameter of the diaphragm (64) is larger than the inner diameter of the housing part.

IPC Classes  ?

• B60T 8/48 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure
• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• F16J 3/02 - Diaphragms
• F16K 15/18 - Check valves with actuating mechanism; Combined check valves and actuated valves
• F16K 17/22 - Excess-flow valves actuated by the difference of pressure between two places in the flow line
• F16K 31/365 - Operating means; Releasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor the fluid acting on a diaphragm

Abstract

This vehicular disc brake makes it possible for an amount of deformation occurring in a caliper body during braking, whereby the disc-radially inner sides of an action part and a reaction part open with a bridge part as a fulcrum, to be substantially the same amount in a disc turn-out side and a disc turn-in side, and for uneven wear of friction pads to be minimized, wherein the vehicular disc brake comprises a caliper bracket 3, a caliper body 6 attached to the caliper bracket 3, and friction pads 7, 7 disposed on both sides of a disc rotor 2, and the caliper body 6 comprises an action part 6a provided with cylinder holes 6f, 6g through which a large-diameter piston 10 and a small-diameter piston 11 are inserted, and a bridge part 6c extending across the outer periphery of the disc rotor 2. Thinned parts 6n, 6p are provided respectively in positions corresponding to the pistons 10, 11 in a disc-radially inner wall 6i of the bridge part 6c. The volume of the thinned part 6b corresponding to the large-diameter piston 10 on the disc turn-out side when the vehicle is moving forward is less than the volume of the thinned part 6p corresponding to the small-diameter piston 11 on the disc turn-in side.

IPC Classes  ?

• F16D 65/02 - Braking members; Mounting thereof
• F16D 55/22 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
• F16D 55/225 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• F16D 65/097 - Resilient means interposed between pads and supporting members

Abstract

a) of a board provided in the housing, and an insertion direction of the connection terminal into the through-hole is a fitting direction of the electric component with the housing. The electric component assembly includes a rib which is protrudingly provided on either one of an outer surface of the electric component intersecting the fitting direction and an inner surface of the housing facing the outer surface, and a groove portion which is provided as a recess on another one of the surfaces and the rib is inserted into; and a protrusion that abuts onto the rib is provided on an inner surface of the groove portion.

IPC Classes  ?

• B60T 8/36 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
• H01F 27/28 - Coils; Windings; Conductive connections

Abstract

The purpose of the present invention is to provide an exhaust gas purification device that can mix a reductant in exhaust gas homogenously and at a short distance, and that can suppress a pressure loss of the exhaust gas. An exhaust gas purification device 1 according to the present invention is provided with: a selective catalytic reduction device SCR that is arranged in a downstream exhaust gas flow path S3; and a mixer 100 that is arranged upstream of the selective catalytic reduction device SCR and has a helical flow path S2 that helically introduces a flow of exhaust gas from an internal combustion engine ENG, wherein the mixer 100 is provided with: a casing 20 that has an upstream opening part 21a and a downstream opening part 22a and has the helical flow path S2 therein; an injector 30 that is arranged in the helical flow path S2 and adds a reductant to the helical flow path S2; and a division plate 10 that is continuous from the upstream opening part 21a to the downstream opening part 22a, is arranged to partition an internal space of the casing 20 into equal halves of an upstream side and a downstream side, and defines the helical flow path S2.

IPC Classes  ?

• F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
• F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous

Abstract

In an electric parking brake device configured in such a way that a parking brake state resulting from pulling of a brake cable is released by loosening the brake cable, the brake cable (37) is formed by twisting together a plurality of wires (92) in such a way as to generate a twisting force in a fixed direction when pulled, and the direction in which the twisting force generated by the brake cable (37) in a pulled state acts on a screw shaft (38) is set to be the same direction as the direction in which a nut (61) is rotated to loosen the brake cable (37). This makes it possible to reduce an operating sound and to reduce wear of members constituting a rotation restricting means.

IPC Classes  ?

• F16D 65/22 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• F16D 121/24 - Electric or magnetic using motors
• F16D 125/40 - Screw-and-nut
• F16D 125/60 - Cables or chains, e.g. Bowden cables

Abstract

In an electric parking brake device in which a parking brake state is released by loosening a brake cable: a nut (61) is screwed onto a screw shaft (38) in such a way as to to be capable of moving in an axial direction; a movement restricting portion (74f) which is caused to abut the screw shaft or a linked member (76) that moves in the axial direction together with the screw shaft, thereby restricting an axial direction movement end of the screw shaft to the side loosening the brake cable (37), is disposed in a fixed position inside an actuator case (39); and a resilient member (80) which is compressed in response to axial direction movement of the nut after movement restriction has been effected by the movement restricting portion when the screw shaft moves in the axial direction toward the side loosening the brake cable is interposed between the nut and an insertion member (74) which is accommodated and fixed inside the actuator case. This makes it possible for a load to be applied to the electric motor when the parking brake state is to be released, while preventing generation of an operating sound, and without making the strength of the actuator case unnecessarily large.

IPC Classes  ?

• F16D 65/22 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• F16D 121/24 - Electric or magnetic using motors
• F16D 125/40 - Screw-and-nut
• F16D 125/60 - Cables or chains, e.g. Bowden cables

Abstract

Provided is an electric parking brake device in which an actuator case of an electric actuator is mounted to a backplate of a drum brake which includes a parking brake lever, with which electric actuator it is possible to obtain a parking brake state by pulling a brake cable linked with the parking brake lever. The backplate (13) is formed with a through-hole (75) for passing the brake cable (37) and has a connecting tube portion (13a) integrally protruding therefrom and enclosing the through-hole. A mounting tube (77) includes, on one end in an axial direction, a joint portion (77a) which is formed separately from the backplate and joined to the connecting tube portion. The actuator case (39) is mounted to the mounting tube (77) at certain axial and circumferential positions with respect to the mounting tube. In this way, the freedom of the mounting attitude of the electric actuator with respect to the backplate can be increased without an increase in cost.

IPC Classes  ?

• F16D 65/22 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• F16D 65/09 - Pivots or supporting members therefor
• F16D 121/24 - Electric or magnetic using motors

Abstract

This vehicular disc brake in which a pad spring can be preferably attached while a caliper body is downsized and lightened, is provided with: a turn-in side pad spring 5 provided with a turn-in side resilient portion 5a that is attached on a disc turn-in side relative to a friction pad accommodating portion 3g of a bridge portion 3b and that biases a friction pad 4 to a disc radial inner side and a disc turn-out side, and a turn-in side retainer portion 5b laid on a turn-in side torque reception stepped portion 3m; and a turn-out side pad spring 6 provided with a turn-out side resilient portion 6a that is attached on a disc turn-out side relative to the friction pad accommodating portion 3g of the bridge portion 3c and that biases the friction pad 4 to the disc radial inner side, and a turn-out side retainer portion 6b laid on a turn-out side torque reception stepped portion 3n.

IPC Classes  ?

• F16D 65/097 - Resilient means interposed between pads and supporting members
• F16D 55/228 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
• F16D 65/02 - Braking members; Mounting thereof
• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes

Abstract

A vehicle brake system provided with electric brakes. This vehicle brake system 1 comprises electric brakes 16a to 16d provided with motors 80 to 85, and a plurality of controllers (30, 40, 41, 50) that are mutually connected and control the motors 80 to 85. This vehicle brake system 1 includes load sensors 6a to 6d for detecting load values applied to the electric brakes 16a to 16d, and current sensors 70 to 75 for detecting current values supplied to the motors 80 to 85. The plurality of controllers (30, 40, 41, 50) are capable of controlling the motors 80 to 85 based on the load values detected by the load sensors 6a to 6d, and also capable of controlling the motors 80 to 85 based on estimated load values which are estimated from the current values from the current sensors 70 to 75.

IPC Classes  ?

• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• B60T 17/18 - Safety devices; Monitoring

Abstract

Provided is a vehicle brake system equipped with an electric brake and which has high reliability and enables redundancy at low cost. This vehicle brake system 1 is equipped with a mutually connected master controller 30 and first and second sub-controllers 40, 41, and an output cut-off control unit 200. Each of the controllers includes: a braking force calculation section for calculating the braking force of the electric brake; a self-determination section for determining whether or not the controller itself is normal; and an other-determination section for comparing the braking force calculation results of the controllers to determine whether the other two are normal. Upon determining that the master controller is not normal, the output cut-off control unit cuts off the output of the master controller, the determination being made on the basis of the self-determination result made by the master controller, the self-determination result and determination result regarding the master controller made by the first sub-controller, and the self-determination result and determination result regarding the master controller made by the second sub-controller.

IPC Classes  ?

• B60T 17/18 - Safety devices; Monitoring
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

Provided is a highly reliable vehicular brake system that comprises electric brakes. A vehicular brake system 1 that comprises: electric brakes 16a–16d that comprise motors 80–85; drivers 60–65 that drive the motors 80–85; and a control device that controls the drivers 60–65. Electric brake 16a comprises two of the motors 80, 81, and the control device comprises separate drivers 60, 61 that correspond to the two motors 80, 81. The control device comprises a first master controller 30 and a first sub-controller 40. The first master controller 30 controls the driver 61 that corresponds to motor 81, and the first sub-controller 40 controls the driver 60 that corresponds to motor 80.

IPC Classes  ?

• B60T 17/22 - Devices for monitoring or checking brake systems; Signal devices
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

Provided is a highly reliable vehicular brake system that comprises electric brakes and makes it possible to achieve redundancy at low cost. A vehicular brake system 1 that comprises: a first control device 10 and a second control device 11 that comprise a master controller 30, a first sub-controller 40, and a second sub-controller 41 that are connected to each other. The master controller 30, the first sub-controller 40, and the second sub-controller 41 include: a braking force calculation unit that calculates braking force for electric brakes 16a–16d; and a determination unit that makes determinations on normality by comparing the results of the braking force calculations at each of the controllers. The determination unit comprises an output cutoff means that, when it has been determined that any of the controllers is abnormal, cuts off output to the controller that has been determined to be abnormal.

IPC Classes  ?

• B60T 17/18 - Safety devices; Monitoring
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

A highly-reliable vehicular brake system that comprises an electric brake and makes it possible to achieve redundancy at low cost. A vehicular brake system 1 that comprises: an electric brake 16a that is provided to a wheel Wa of a vehicle VB and comprises a motor 80; a driver 60 that drives the motor 80; and a first control device 10 that comprises a master controller 30 and a first sub-controller 40 that are connected to each other. The electric brake 16a can be controlled by both the master controller 30 and the first sub-controller 40.

IPC Classes  ?

• B60T 17/18 - Safety devices; Monitoring
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

Provided is a highly reliable vehicular brake system that comprises electric brakes and makes it possible to achieve redundancy at low cost. A vehicular brake system 1 that comprises: electric brakes 16a–16d that comprise at least one motor 80, 81; and first and second control devices 10, 11 that comprise a master controller 30 and a first sub-controller 40 that are connected to each other. The master controller 30 includes: a driver control unit 301 that can control drivers 61, 63; and a braking force calculation unit that calculates braking force for the electric brakes 16a–16d. The first sub-controller 40 includes: a driver control unit that controls a driver 60; and a braking force calculation unit that calculates braking force for the electric brakes 16a–16d. The master controller 30 and the first sub-controller 40 include a determination unit that decides braking force by comparing the results of braking force calculations at other controllers.

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 17/18 - Safety devices; Monitoring

Abstract

A vehicle brake fluid pressure control device (10) having: a housing (36) for accommodating a control board; and a cover (38) for covering the control board, the cover (38) being attached to the housing (36). The housing (36) is provided with a peripheral wall part (84) for accommodating the control board. The peripheral wall part (84) is provided with an attachment part (36a) for attaching the cover (38). The cover (38) is provided with a protrusion (38a) extending toward the attachment part (36a). The attachment part (36a) is provided with a top groove (36c) filled with an adhesive (36b) and into which the protrusion (38a) is inserted. When the cover (38) is attached to the housing (36), the cover (38) comes in contact with the attachment part (36a) at a contacting part (39) that is on the outside relative to the protrusion (38a). A collecting groove (38b) is provided between the contacting part (39) and the protrusion (38a) of the cover (38). The collecting groove (38b) has the function of collecting excess adhesive (36b) when the cover (38) is attached to the housing (36).

IPC Classes  ?

• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition

Abstract

Falling out of electrical components is suitably prevented while employing a simple connection structure in a control substrate using a connecting terminal. An electrical component assembly comprises a housing (202) in which electrical components are assembled, the electrical components and the housing being fixed to one surface of a base (100). The electrical components comprise a connecting terminal pressure welded to a through-hole (201a) of a substrate (201) of the housing (202). The electrical components comprise electrical component adhesive areas (S2) facing opposite the attachment surface of the base (100), and are configured to be fixed to the base (100) using an adhesive agent interposed between the base (100) and the electrical component adhesive areas (S2).

IPC Classes  ?

• H05K 7/12 - Resilient or clamping means for holding component to structure
• B60T 8/36 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
• H01F 7/06 - Electromagnets; Actuators including electromagnets

Abstract

In this electric component assembly, an electric component can be assembled without the use of jigs, and, by eliminating the space for a jig arrangement, it is possible to achieve greater compactness and a simplified configuration of the electric component. This electric component assembly is provided with a housing (202) to which the electric component is attached, and the electric component and the housing (202) are fixed to one surface of a substrate (100). The electric component is provided with a connection terminal pressed into a through-hole (201a) of a control substrate (201) of the housing (202), and the insertion direction of the connection terminal into the through-hole (201a) is the direction of attachment to the housing (202). A rib (25) is provided projecting from one of the electric component and the housing (202), and a recessed groove (226) for press-fitting the rib (25) is provided in the other. Press-fitting the rib (25) into the groove (226) restricts the electric component from moving in a direction intersecting the attachment direction and from rotating around an axis parallel to the attachment direction.

IPC Classes  ?

• H01F 7/06 - Electromagnets; Actuators including electromagnets
• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• B60T 15/36 - Other control devices or valves characterised by definite functions
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
• H01F 7/16 - Rectilinearly-movable armatures

Abstract

In this electric component assembly, an electric component is favorably prevented from falling out while adopting a simple connection structure of the connection terminal into the control board. This electric component assembly is provided with a housing (202) to which the electric component is attached, and the electric component and the housing (202) are fixed to one surface (101) of a substrate (100). The electric component is provided with a connection terminal pressed into a through-hole (201a) of a substrate (201) provided in the housing (202), and the insertion direction of the connection terminal into the through-hole (201a) is the direction of attachment to the housing (202). A rib (25) is provided projecting from one of an outer surface of the electric component intersecting the attachment direction and an inner surface of the housing (202) opposite of said outer surface, and a recessed groove (226) for insertion of the rib (25) is provided in the other. On the inner surface of the groove (226), a protrusion (226a) is provided that contacts the rib (25).

IPC Classes  ?

• B60T 8/36 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force

Abstract

A box-shaped housing (36) is attached to a base body (40). The housing (36) is provided with a flange (92) that comes into contact with the base body (40). The flange (92) is provided with a lower groove (92b) which is withdrawn toward the outer side from a peripheral wall part (84) of the housing (36) and which is filled with an adhesive (92a). The surface of the flange (92) adjacent to the base body (40) is divided by the lower groove (92b) into an outer-side surface (92g) on the outer side of the lower groove (92b) and an inner-side surface (92f) on the inner side. When the outer-side surface (92g) comes into contact with the base body (40), a small gap (92g) is ensured between the inner-side surface (92f) and the base body (40). Excess adhesive (92a) flows into the small gap (92g).

IPC Classes  ?

• F16B 11/00 - Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
• B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• H02G 3/14 - Fastening of cover or lid to box
• H02G 3/16 - Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
• H05K 5/06 - Hermetically-sealed casings

Abstract

The present invention makes it possible to assemble electrical components without using a tool for assembly, and eliminates a space for jig placement, allowing for more compact size and an increased degree of freedom in terms of layout. A coil assembly (1) comprises a bobbin (2), a coil (50) obtained by a winding (51) being wound around the bobbin (2), a yoke (3) attached to the bobbin (2), and a connection terminal electrically connected to the winding (51). The connection terminal is a press-fit terminal (10) comprising a terminal part (12) projecting perpendicularly toward the axially outward side of the bobbin (2). The yoke (3) is configured to be disposed on an extension on the axial-direction opposite side from the terminal part (12), and to support the press-fit terminal (10).

IPC Classes  ?

• H01F 7/06 - Electromagnets; Actuators including electromagnets
• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• B60T 15/36 - Other control devices or valves characterised by definite functions
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
• H01F 7/127 - Assembling
• H01F 7/16 - Rectilinearly-movable armatures

Abstract

The present invention is a caliper body for a vehicle disc brake with improved processability and improved air extractability. Multiple cylinder holes 6d, 6e, 6f are disposed side by side in the disc circumference direction on a working section 6a of a caliper body 6. Recesses 6k and 6m are formed in the bottoms of the cylinder holes 6d and 6f, and the recesses 6k and 6m are in communication with each other via a communication hole 16. In the recess 6m of the cylinder hole 6f that is disposed in the uppermost part when the caliper body 6 is installed in a vehicle, a connection hole 17a that opens to the outer surface of the caliper body 6 is formed on the same line as the communication hole 16. For the recesses 6k and 6m, the communication hole 16 or the connection hole 17a connects at a position that becomes the upper end when the caliper body 6 is installed in a vehicle, and slanted air extraction sections 6t and 6u that slant toward the upper end are formed.

IPC Classes  ?

• F16D 65/02 - Braking members; Mounting thereof

Abstract

The present invention provides a vehicular disc brake in which bleeder screws and/or banjo bolts can be satisfactorily threaded into a boss part provided with a union hole and/or a boss part provided with a bleeder hole, the boss parts being provided to a caliper body, wherein a first union boss part 5h, a second union boss part 5j, and a second bleeder boss part 5k, which are aligned on the outer side of a caliper body 5 with respect to a disc radial direction, are disposed such that the first union boss part 5h disposed on a disc turn-out side and the second union boss part 5j disposed on a disc turn-in side are nearer to a disc rotor than is the second bleeder boss part 5k disposed in the center. A bearing surface position S1 of a banjo bolt 20 attached to the first union boss part 5h and a bearing surface position S2 of a banjo bolt 20 attached to the second union boss part 5j protrude further outward in the disc radial direction than does a bearing surface position S3 of a bleeder screw 18 attached to the second bleeder boss part 5k.

IPC Classes  ?

• F16D 55/22 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
• F16D 65/02 - Braking members; Mounting thereof

Abstract

[Problem] The present invention addresses the problem of providing a technology that can determine bad roads with better precision, in order to improve control such as anti-lock brake system (ABS) control. [Solution] A brake fluid pressure control device for a vehicle, said brake fluid pressure control device comprising a wheel speed acquisition means that acquires a wheel speed, an estimated vehicle body speed calculation means that calculates an estimated vehicle body speed on the basis of the wheel speed, and a bad road determination means that determines whether a road surface of travel is a bad road. The brake fluid pressure control device for a vehicle can provide hydraulic control of a brake fluid that is used in wheel brakes, and the bad road determination means determines whether the road surface of travel is a bad road on the basis of the deviation between the estimated vehicle body speed and the wheel speed. [Effect] The present invention can detect a reduction in gripping strength, a return tendency, or noise in a sensor output value, which are phenomena particular to bad roads, and can more accurately perform bad road determination. The present invention thus improves bad road determination precision and allows for the improvement of control such as ABS control.

IPC Classes  ?

• B60T 8/172 - Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
• B60T 8/1763 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface

Abstract

[Problem] The present invention addresses the problem of providing a brake fluid pressure control device for a vehicle, said brake fluid pressure control device being able to improve the precision of bad road determination, without depending on variation in change of wheel speed. [Solution] A brake fluid pressure control device for a vehicle, said brake fluid pressure control device being able to provide hydraulic control of brake fluid pressure and comprising a wheel speed acquisition means that acquires a wheel speed, a slippage amount calculation means that calculates a wheel slippage amount, and a bad road determination means that determines whether a road surface of travel is a bad road. The bad road determination means determines whether the road surface of travel is a bad road using a bad road determination threshold value, and using a value that relates to wheel behavior and is calculated on the basis of at least the wheel speed. The bad road determination threshold value is modified according to the wheel slippage amount. [Effect] The present invention can appropriately set a bad road determination threshold value that is in accordance with a slippage amount, said slippage amount corresponding to braking power, and the present invention can improve the precision of bad road determination without depending on variation in change of wheel speed.

IPC Classes  ?

• B60T 8/172 - Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
• B60T 8/1763 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to the coefficient of friction between the wheels and the ground surface

Abstract

For a vehicle disc brake (11), a piston (25)-side first friction pad (13a) is provided with at least one protrusion (62a) on a piston-contacting section that excludes the central axis line (Px) of the piston and the piston (25) is provided with an engagement hole (65) capable of engaging with the protrusion (62a). Symmetric with the piston (25)-side first friction pad (13a) with a brake disc (12) therebetween, a reaction pawl (19)-side second friction pad (13b) is provided with a protrusion (64). As a result, it is possible to provide a vehicle disc brake in which the first friction pad and the second friction pad are both made to have a protrusion, reducing the possibility of incorrect assembly, and the friction pads themselves are made to be used in common, facilitating product management.

IPC Classes  ?

• F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• F16D 65/095 - Pivots or supporting members therefor
• F16D 121/04 - Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
• F16D 121/24 - Electric or magnetic using motors
• F16D 125/06 - Pistons
• F16D 125/40 - Screw-and-nut

Abstract

[Problem] To provide a vehicle brake hydraulic control device whereby it is possible to improve brake responsiveness when a brake is re-operated by a driver during ABS control, without it feeling unnatural to the driver. [Solution] A vehicle brake hydraulic control device is equipped with a wheel speed acquisition unit that acquires wheel speed and a vehicle body deceleration calculation means for calculating a vehicle body deceleration on the basis of the wheel speed. If a condition is satisfied in which vehicle body deceleration continues to stay at a low rate of less than or equal to a predetermined threshold value for a certain duration of time, the pressure increasing rate in pressure increasing control is changed so as to be higher than before the condition was satisfied. [Effect] The caliper-side brake hydraulic pressure (CAL pressure) can be quickly brought close to the master-cylinder-side hydraulic pressure (M/C pressure). Therefore, it is possible to improve brake responsiveness when brakes are re-operated by a driver during ABS control, without it feeling unnatural to the driver.

IPC Classes  ?

• B60T 8/176 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
• B60T 8/48 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure

Abstract

[Problem] To provide a motor control device and a brake fluid pressure control device which provide a technology that enables low-rotational-frequency control of a motor while suppressing the generation of heat. [Solution] A motor control device equipped with a drive control unit that controls the turning on/off of a motor, and a voltage acquisition unit that acquires the voltage across the terminals of the motor. The drive control unit 32 confirms whether the motor drive signal is off (ST01), and if the result is Yes the drive control unit 32 confirms whether the voltage across the terminals as obtained by the voltage acquisition unit 33 has decreased and reached a target voltage (ST02). If the result in ST02 is Yes an On time is set on the basis of the immediately previous Off time (ST03), and the motor drive signal is switched from Off to On (ST04). After the On time elapses the motor drive signal is switched from On to Off (ST05). [Effect] Low-rotational-frequency control of a motor can be performed while suppressing the generation of heat in a motor relay.

IPC Classes  ?

• H02P 7/29 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
• B60T 8/48 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure

Abstract

[Problem] To provide a vehicle brake hydraulic control device such that it is possible to accurately determine, with a simple method, when the coefficient of friction of the travel road surface to tires changes suddenly from a low coefficient of friction coefficient to a high coefficient of friction. [Solution] A vehicle brake hydraulic control device which is capable of hydraulic control of the brake hydraulic pressure applied to wheel brakes. It is determined whether or not the pressure-increasing time in the present pressure-increasing control exceeds a determination time which is set on the basis of the pressure-increasing time in past pressure-increasing control. If the pressure-increasing time in the present pressure-increasing control exceeds the determination time, it is determined that the road surface on which the vehicle is traveling has changed from a road surface with a low coefficient of friction to a road surface with a high coefficient of friction. [Effect] It is possible to accurately determine, with a simple method, when the road surface on which the vehicle is traveling has changed suddenly from a road surface with a low coefficient of friction to a road surface with a high coefficient of friction.

IPC Classes  ?

• B60T 8/172 - Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
• B60T 8/1761 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure

Abstract

In this brake control device (10) for a motorcycle (12), a deceleration threshold value calculation unit (54) limits target wheel deceleration (deceleration (A1)) to a threshold value or less on the basis of a bank angle (α) estimated by a bank angle calculation unit (52). Thus, the behavior of the vehicle body during turning of the motorcycle (12) can be made more stable so as not to cause discomfort to a driver.

IPC Classes  ?

• B60T 8/1755 - Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
• B60T 8/66 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration responsive to speed and another condition or to plural speed conditions using electrical circuitry for controlling the braking action, the circuitry deriving a control function relating to the dynamic of the braked vehicle or wheel wherein the braking action is responsive to the difference between a computed or other theoretical vehicle speed and an actual speed of a wheel thereof

Abstract

[Problem] To provide a vehicle brake hydraulic control device whereby it is possible to improve brake responsiveness when a brake is re-operated by a driver during ABS control, without it feeling unnatural to the driver. [Solution] A vehicle brake hydraulic control device is equipped with a wheel speed acquisition unit that acquires wheel speed and a vehicle body deceleration calculation means for calculating a vehicle body deceleration on the basis of the wheel speed. If a condition is satisfied in which vehicle body deceleration continues to stay at a low rate of less than or equal to a predetermined threshold value for a certain duration of time, the pressure increasing rate in pressure increasing control is changed so as to be higher than before the condition was satisfied. [Effect] The caliper-side brake hydraulic pressure (CAL pressure) can be quickly brought close to the master-cylinder-side hydraulic pressure (M/C pressure). Therefore, it is possible to improve brake responsiveness when brakes are re-operated by a driver during ABS control, without it feeling unnatural to the driver.

IPC Classes  ?

• B60T 8/176 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
• B60T 8/48 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure

Abstract

A thermoplastic resin composition according to the present invention contains carbon nanotubes and carbon fibers in amounts of 2.8 to 35 parts by mass and 1 to 60 parts by mass, respectively, relative to 100 parts by mass of a thermoplastic resin. In the thermoplastic resin composition, when the content of the carbon nanotubes is 2.8 to 5.3 parts by mass relative to 100 parts by mass of the thermoplastic resin, the content of the carbon fibers is at least 8.3 to 1 part by mass. In the thermoplastic resin composition, when the content of the carbon fibers is 1 to 8.3 parts by mass relative to 100 parts by mass of the thermoplastic resin, the content of the carbon nanotubes is at least 5.3 to 2.8 parts by mass.

IPC Classes  ?

• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08K 3/04 - Carbon

Abstract

Provided is a hydraulic master cylinder device for a handlebar vehicle, with which a driver can satisfactorily adjust a grip margin while feeling the grip margin adjustment carried out via an adjustment bolt. The adjustment bolt comprises: a male thread part 15a that threadedly engages with a female threaded hole 12c of an adjustment bolt attachment part 12b and that is screwed such that an amount of projection toward a knocker 13 can be adjusted; a knocker abutting part 15b that is provided at one end of the male thread part 15a; and a handle part 15d that is provided at the other end of the male thread part 15a. The handle part 15d is provided with a rotation shaft 15e that is formed in a polygonal columnar shape, and an operation part 15f that rotates the adjustment bolt 15. A spring member 16 that elastically presses against a flat part 15h of the rotation shaft 15e is attached to the adjustment bolt attachment part 12b, and the spring member 16 provides a click sensation as the spring member moves from a first flat part 15h against which the spring member presses, crosses over a protrusion 15g, and then presses against a second flat part 15i in accordance with the rotation of the rotation shaft 15e.

IPC Classes  ?

• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• B60T 11/18 - Connection thereof to initiating means
• B62L 3/00 - Brake-actuating mechanisms; Arrangements thereof

Abstract

A vehicular disc brake that allows friction pads to be easily exchanged, while also reducing the size of a caliper body, wherein pad suspension parts 8a, 9a are arranged to protrude from friction pads 8, 9 to the outside in the radial direction of the disc and at a disc turn-in side during forward movement of the vehicle. A torque transmission surface 8g for transmitting braking torque by contacting a torque-receiving part 3d provided on a caliper bracket 3 is provided on the disc turn-out side of the active-side friction pad 8. A torque transmission arm 9f for transmitting braking torque by contacting a torque-receiving pin 13 is provided on the disc rotor turn-out side of the reactive-side friction pad 9. A housing recess 6q for housing the pad suspension parts 8a, 9a so as to be able to move in the disk axis direction is formed in a disc rotor side surface 6r on a bridge section 6c of a caliper body 6.

IPC Classes  ?

• F16D 55/227 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially the axial movement being guided by one or more pins by two pins
• F16D 65/02 - Braking members; Mounting thereof
• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• F16D 65/095 - Pivots or supporting members therefor

Abstract

A disc brake device for a vehicle, said disc brake device equipped with: a piston slidably fitted into a cylinder hole provided in one arm section of a brake caliper, and capable of pressing against one friction pad; a shim plate mounted on a back plate of the one friction pad and interposed between the back plate and the piston; and a pressing means that applies pressing force to the piston while causing rotational force to act on the piston. Multiple protrusions (t2, t2') protruding toward the piston (PI) are provided, with intervals between the protrusions, on the back plate (4) of the friction pad (P) facing the piston (PI) with the shim plate (S) therebetween, and multiple engaging holes (h2, h2'), into which the multiple protrusions (t2, t2') are fitted, are provided on the shim plate (S) so as to prevent the shim plate (S) from rotating together with the piston (PI) due to the rotational force. Thus, co-rotation of the shim plate can be effectively restricted even when a large rotational force acts on the piston in conjunction with the operation of the pressing means, and thus the durability of the shim plate is improved.

IPC Classes  ?

• F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• F16D 65/095 - Pivots or supporting members therefor
• F16D 121/04 - Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
• F16D 121/24 - Electric or magnetic using motors
• F16D 123/00 - Multiple operation forces
• F16D 125/40 - Screw-and-nut

Abstract

A piston (7) has a piston main body (71) comprising an aluminum alloy, and a covering layer (20) formed on the outer surface of the piston main body (71), and the covering layer (20) has a first plating layer (21) comprising an iron-phosphorous alloy, and a second plating layer (22) comprising a nickel-phosphorous alloy formed on the first plating layer (21).

IPC Classes  ?

• F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
• C23C 18/52 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, i.e. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups
• C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
• F16J 1/01 - Pistons; Trunk pistons; Plungers characterised by the use of particular materials
• F16D 121/04 - Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
• F16D 125/06 - Pistons

Abstract

The present invention is a vehicle disc brake for which incorrect installation of a friction pad can be prevented with a simple structure. The disc brake is provided with incorrect installation-preventing parts with which, if a friction pad (4) is installed with an incorrect installation orientation when a pair of tabs (10, 11) provided on the disc entry-side and disc exit-side of the back plate (4d) of a friction pad (4) is installed into pad guide grooves (9) formed on a caliper body (3), the tabs bump into the caliper body (3) and prevent the incorrect installation. The incorrect installation-preventing parts are formed from caliper-side recesses (9d, 9e), which are formed in the pad guide grooves (9) towards the center of the caliper body, and tab-side protrusions (10a, 11a), which have shapes that correspond to the caliper-side recesses (9d, 9e).

IPC Classes  ?

• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• F16D 65/095 - Pivots or supporting members therefor
• F16D 55/228 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side

Abstract

A brake device for a handlebar vehicle is configured so that a space for installing a master cylinder unit can be ensured. A master cylinder unit (6) is connected to a front wheel brake operator (4), a rear wheel brake operator (5), and a rear wheel brake (3) through a first brake wire (8), a second brake wire (10), and a rear wheel brake wire (11) and is connected to a front wheel brake (2) through hydraulic piping (9). The master cylinder unit (6) is disposed at the upper part (B1) of the steering shaft section of a handlebar vehicle (12).

IPC Classes  ?

• B60T 7/08 - Brake-action initiating means for personal initiation hand-actuated
• B60T 11/18 - Connection thereof to initiating means
• B62K 23/06 - Levers

Abstract

A drum brake for a vehicle for which a back plate can be reinforced adequately while minimizing the cost. In this back plate (2) a wheel cylinder pedestal (2e) and an anchor pedestal (2f), which secure a wheel cylinder (4) and an anchor (5) arranged between the two ends of brake shoes (3, 3), and multiple ledge surfaces (2a), which guide the expansion and contraction of the brake shoes (3), are formed projecting downward toward the interior of the back plate. In addition, a first arc-shaped protruding part (2c) and a second arc-shaped protruding part (2d), which are concentric with the back plate (2), are formed projecting downward toward the interior of the back plate (2).

IPC Classes  ?

• F16D 65/09 - Pivots or supporting members therefor

Abstract

A brake fluid pressure control system for a vehicle is provided with: a master cylinder (34) operated by the operation of a brake pedal (12); a motor cylinder device (16) for generating brake fluid pressure according to the amount of operation of the brake pedal (12); first brake fluid flow passages (70a, 70b) for connecting the master cylinder (34) and a wheel cylinder (W); two-position three-way valves (60a, 60b) arranged at the points of connection (S) between the first brake fluid flow passages (70a, 70b) and second brake fluid flow passages (100a, 100b). The two-position three-way valves (60a, 60b) switch between a state in which the master cylinder (34) and the wheel cylinder (W) are connected and a state in which the motor cylinder device (16) and the wheel cylinder (W) are connected.

IPC Classes  ?

• B60T 13/138 - Pressure supply arrangements
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 8/42 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure
• B60T 13/122 - Systems using both master cylinder and distributor valve; Structural associations of master cylinder with distributor valve

Abstract

A brake device for a vehicle that has handlebars. Said brake device makes it possible to reduce the size and increase the layout freedom of a master-cylinder unit. A rear-wheel brake-wire guide (21u) is provided on the bottom end of a lever holder (21q) so as to protrude therefrom, and a cylinder-body central-axis side of said rear-wheel brake-wire guide (21u) has a second-rotary-lever contact surface (21v) that contacts a second rotary lever (42) so as to set the initial position thereof.

IPC Classes  ?

• B62L 3/08 - Mechanisms specially adapted for braking more than one wheel
• B60T 11/04 - Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
• B60T 11/18 - Connection thereof to initiating means
• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever

Abstract

A brake device for a vehicle that has handlebars. Said brake device makes it possible for a rotary lever to stably push a knocker that actuates a hydraulic master cylinder. A lever holder (21q, 21r) that pivotably supports a first rotary lever (41), a second rotary lever (42), and a knocker (43) via an anchor pin (33) such that said rotary levers (41 and 42) and knocker (43) can rotate is provided on a cylinder-hole-opening side of a cylinder body (21a) so as to protrude therefrom. The second rotary lever (42) is provided with a bifurcated second rotary base section (42b) that is positioned inside the lever holder (21q, 21r) with the first rotary lever (41) and the knocker (43) positioned thereinside. Said second rotary base section (42b) has a knocker-pushing surface (42j) that pushes the knocker (43).

IPC Classes  ?

• B62L 3/08 - Mechanisms specially adapted for braking more than one wheel
• B60T 11/04 - Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
• B60T 11/18 - Connection thereof to initiating means
• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever

Abstract

A disk brake for a vehicle such that the dragging of a friction pad is prevented while also suppressing the rattling of the friction pad and preventing the occurrence of a clunking noise, wherein a retainer part (10a) of a pad retainer (10) is provided with an outside section (10g), a back section (10h), and an inside section (10f). A pad rebounding section (10c) is formed by inclining the leading end of a strip, which extends in the disk rotor direction from the end of the inside section (10f) away from the disk rotor with an elastic loop section (10b) therebetween, toward the outside in the radial direction of the disk. During travel, a gap (E1) is formed between the inside section (10f) and the strip of the pad rebounding section (10c), and when a lug piece (6b) moves inward in the radial direction of the disk, the pad rebounding section (10c) and the inside section (10f) come into contact with each other, the inside section (10f) is pressed against an inside surface (3f) in the radial direction of the disk, the back section (10h) is elastically deformed so as to warp toward the lug piece, and the elastically deformed back section (10h) presses the lug piece (6b) toward the center side of a caliper body (5).

IPC Classes  ?

• F16D 65/097 - Resilient means interposed between pads and supporting members

Abstract

The brake device is for a handlebar vehicle, and enables the appropriate setting of an ineffective stroke and regulations of the backward limit of a piston without causing the production precision of a master cylinder unit to become more stringent than necessary. The master cylinder unit (20) is formed by combining a lever mechanism and a hydraulic master cylinder (21). The lever mechanism is provided with a first rotating lever (41), a second rotating lever (42), a knocker (43), and an equalizer lever (44). In the hydraulic master cylinder (21), a circlip (25) that regulates the backward limit of a piston (22) is attached to the opening of a cylinder hole (21b) into which the piston (22) is inserted. The master cylinder unit (20) is disposed in a cowl (51) of the handlebar vehicle (50).

IPC Classes  ?

• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• B60T 7/10 - Disposition of hand control
• B60T 11/08 - Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically providing variable leverage

Abstract

Provided is a brake device that is for a handlebar vehicle and that can favorably adjust an ineffective stroke that is from the start of an operation of a first brake controller until a piston is pressed via a knocker, wherein a knocker pressing surface (42i) that presses the knocker (43) is formed at a second rotating lever (42), a receiving surface (43f) that is pressed by the knocker pressing surface (42i) is formed at the knocker (43), an adjustment bolt (32) that protrudes towards an adjustment bolt contact surface (43e) of the knocker (43) is mounted to an adjustment bolt attachment section (41c) of a first rotation lever (41), and the amount of protrusion of the adjustment bolt (32) is adjusted, thereby adjusting the ineffective stroke from the start of an operation of a front wheel brake controller (4) until the piston (22) is pressed by the knocker (43).

IPC Classes  ?

• B62L 3/02 - Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
• B60T 7/10 - Disposition of hand control
• B60T 11/08 - Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically providing variable leverage

Abstract

Disclosed is a vehicle brake fluid pressure control device (control device (100)) that is mounted on a vehicle in which the drive torque is reduced while the vehicle is stopped, the control device including a vehicle holding control means (113) that executes a vehicle holding control by holding the brake fluid pressure while the vehicle is stopped. The vehicle holding control means (113) is configured so as to: release the holding of the brake fluid pressure on the basis of a driver's accelerator operation while the vehicle is stopped; and, at the time of releasing the holding of the brake fluid pressure, complete releasing the holding of the brake fluid pressure before the point at which the drive torque of the vehicle starts to increase.

IPC Classes  ?

• B60T 7/12 - Brake-action initiating means for initiation not subject to will of driver or passenger
• B60T 8/42 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

This brake fluid pressure control device for a vehicle comprises, as a control unit (20): an acceleration acquiring means (22) that acquires an output value of an acceleration sensor that detects the acceleration of the vehicle in the front/rear direction thereof; a limiting means (23) that limits the output value acquired by the acceleration acquiring means (22) such that the magnitude of the output value is within a predetermined limit value; a filter (acceleration-for-control calculating means (24)) that limits changes, in a predetermined direction, of a value output from the limiting means (23); and a holding execution means (29) that determines a holding pressure in accordance with a value output from the filter, and that holds the braking force on the basis of the holding pressure.

IPC Classes  ?

• B60T 7/12 - Brake-action initiating means for initiation not subject to will of driver or passenger
• B60T 8/173 - Eliminating or reducing the effect of unwanted signals, e.g. due to vibrations or electrical noise

Abstract

Disclosed is a vehicle brake fluid pressure control device that is mounted on a vehicle in which the drive torque transmitted to the wheels changes while the vehicle is stopped, the vehicle brake fluid pressure control device comprising: a vehicle holding means that executes a vehicle holding control for holding the actual brake fluid pressure applied to the wheels while the vehicle is stopped; and a storage means that stores a holdable fluid pressure at which the stopped state of the vehicle can be held before and after a change in the drive torque while the vehicle is stopped. If the vehicle holding means determines that the actual brake fluid pressure is below the holdable fluid pressure (first fluid pressure (P1)) when the vehicle holding control is started (time (t1)), the vehicle holding means raises the actual brake fluid pressure to the holdable fluid pressure, and then holds the actual brake fluid pressure at the holdable fluid pressure.

IPC Classes  ?

• B60T 7/12 - Brake-action initiating means for initiation not subject to will of driver or passenger

Abstract

In the present invention, a base is reduced in size despite the presence of a caliper pressure sensor. An inlet port and an outlet port are disposed in the top part of a base (100); a reservoir (5) is disposed in the bottom part of the base; a pair of pumps (6) are disposed between the inlet port and the reservoir; a pressure booster valve, a depressurizing valve, a cut valve, and a caliper pressure sensor are disposed in a row in a direction along the center axis of each pump; the pressure booster valve is disposed above the center axis (Y1) of the pump; the depressurizing valve is disposed below the center axis of the pump; the cut valve is disposed between the pressure booster valve and the depressurizing valve and is also disposed nearer the middle of the base than the pressure booster valve and the depressurizing valve disposed at the end of the base; and a suction valve (4) is disposed between the depressurizing valves that, of the depressurizing valves aligned in the direction along the center axes of the pumps, are aligned nearer the end of the base than a vertical reference line passing through the rotational center axes of the pumps. The suction valve communicates with a pair of cut valves, and a master pressure sensor (8) is disposed on the reference line of the base.

IPC Classes  ?

• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition

Abstract

A carbon fiber composite material (60) according to the present invention comprises: cell structures (300) each of which is formed by surrounding an elastomer (30) by a first carbon nanofiber (80) and an interface phase (30a) thereof; cell structure assemblies (400) each of which is formed by assembling multiple pieces of the cell structures (300); and tie structures (500) each of which connects the cell structure assemblies (400) to each other. Each of the tie structures (500) is formed by: a single first carbon nanofiber (80) or multiple first carbon nanofibers (80); a single second carbon nanofiber (90) or multiple second carbon nanofibers (90); and an interface phase (30a) formed around the single first carbon nanofiber (80) or the multiple first carbon nanofibers (80) and the single second carbon nanofiber (90) or the multiple second carbon nanofibers (90) and composed of an elastomer.

IPC Classes  ?

• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08K 3/04 - Carbon
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

In this component installation structure for mounting to a substrate, a flow path that allows a fluid to flow therethrough and an installation hole that communicates with the flow path are provided to a cast metal substrate, and a flange section that is provided to a mounting component that is installed on the substrate is configured so as to be sandwiched in a fluid-tight manner between an annular stepped section that is formed on the inner peripheral-side wall of the installation hole and that faces outward and a plastic deformation section that is formed by causing plastic flow of the inner peripheral-side wall of the installation hole at a location that is more to the outside than the stepped section. A local surface pressure section (44A) is formed between the stepped section (46A) and the flange section (21A) and brings the stepped section (46A) and the flange section (21A) into linear contact in an annular manner along the peripheral direction of the installation hole (12A). As a result, it is possible to increase the contact surface pressure between the flange section of the mounting component and the stepped section of the substrate, and to maintain sufficient sealing properties even when a blowhole exists in the vicinity of the plastic deformation section of the substrate.

IPC Classes  ?

• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• F04B 53/00 - Component parts, details or accessories not provided for in, or of interest apart from, groups or
• F04B 53/10 - Valves; Arrangement of valves
• F16K 27/00 - Construction of housings; Use of materials therefor
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet

Abstract

Provided are a method for manufacturing the resinous cylinder body of a hydraulic master cylinder, and a hydraulic master cylinder, which are configured so that parts are not damaged during assembling and so that work efficiency is improved. A guide sleeve (4) provided with a guide hole (4a) is mounted to the one end side of a cylinder body (3) provided with a cylinder hole (3a). The cylinder hole (3a) is formed so as to be coaxial with the guide hole (4a). The guide sleeve (4) has a large-diameter mounting section (4b) on the outer periphery of the base end side of the guide sleeve (4), and the cylinder body (3) has formed therein a guide sleeve mounting hole (3e) having a large diameter, the guide sleeve mounting hole (3e) being adapted for mounting the mounting section (4b) to the opening of the cylinder hole (3a). The guide sleeve mounting hole (3e) has fitting grooves (3f) in which retaining clips (14) for retaining the mounting section (4b) of the guide sleeve (4) are mounted, and the fitting grooves (3f) are formed on the opening side of the guide sleeve mounting hole (3e) so as to be located on the same circle and so as to face the center axis (CL1) of a plunger (2).

IPC Classes  ?

• F16D 25/08 - Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
• B60T 11/16 - Master control, e.g. master cylinders

Abstract

A cylinder device (A2), which is provided with: a substrate (11) having a cylinder hole (11a) and a reservoir union port (17a); a piston (12) which is inserted into the cylinder hole (11a); a regulation member (19) which regulates the rearward limit of the piston (12); a reservoir (40) having a liquid supply part (41); and a seal member (44) which is for the reservoir and which is externally fitted to the liquid supply part (41). Therein: the substrate (11) comprises a mounting hole (11h) and a first communication hole (17c) which open to the reservoir union port (17a) and the cylinder hole (11a); the regulation member (19) is inserted into the mounting hole (11h); and the liquid supply part (41) has a cut-out section (41d) and a tip section (41e) arranged so as to face the regulation member (19). This structure enables the number of components to be reduced, reduces the size of the substrate (11), and also prevents air from collecting inside the reservoir union port (17a).

IPC Classes  ?

• B60T 8/42 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• B60T 11/22 - Master control, e.g. master cylinders characterised by being integral with reservoir

Abstract

　Provided is a piston push rod assembly which can prevent discomfort from being imparted during the operation of a brake pedal by a driver.　A piston push rod assembly, wherein: a second piston (1b) is provided with a piston slide section (1b1) which is housed in a cylinder and which slides relative to the cylinder, and a connection tube section (1b2) which is connected to a push rod (R); the piston slide section (1b1) is covered by metal plating; the connection tube section (1b2) has a non-plated section; and the second piston (1b) and the push rod (R) are connected by the caulking of the connection tube section (1b2) when the push rod (R) has been inserted inside the connection tube section (1b2).

IPC Classes  ?

• B60T 13/12 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
• B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves

Abstract

Provided are a housing and a master cylinder device that are capable of conserving space, and of suitably ensuring clearance from peripheral structures and peripheral devices. A lid member (30) has an external shape inscribing a quadrilateral formed by two sets of two facing sides, and has: a pair of first cut-out sections (32, 32) configured by cutting out, in the same size, a pair of diagonal corners from among the two sets of diagonal corners of the quadrilateral; and a pair of second cut-out sections (33, 33) configured by cutting out the other diagonal corners in the same size. The outer shape of the lid member (30) is formed in a point-symmetric shape relative to the center (O) of an opening (21a) in a peripheral wall section (23). The first cut-out sections (32) have a larger surface area than the second cut-out sections (33), and one out of the pair of first cut-out sections (32, 32) is configured so as to be arranged in the vehicle progression direction and at the bottom in the vertical direction, when a base body (10) is mounted to a vehicle.

IPC Classes  ?

• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition

Abstract

Provided is a hydraulic braking device enabling a substrate to absorb heat of a drive coil, and having excellent heat radiation performance. The hydraulic braking device has a substrate (10) enclosing a fluid path for a braking fluid. The hydraulic braking device is provided with a solenoid valve arranged on one side of the substrate (10) and a drive coil mounted about an axis of the solenoid valve, and is configured so that a wall surface facing an outer peripheral surface of the drive coil is provided to the one side of the substrate (10). A lower surface (269) of the drive coil abuts the one side of the substrate (10), and a clearance is formed between the outer peripheral surface of the drive coil and the wall surface.

IPC Classes  ?

• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/12 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet

Abstract

Provided is a master cylinder apparatus with a reduced size enabled by simplifying the fluid passageway configuration. A master cylinder apparatus (A1) which includes a base member (10) containing a fluid passageway for brake fluid and to which an operation of a brake operator is inputted is provided with: a master cylinder (1) installed on the base member (10) to generate a fluid pressure based on an input produced by operating the brake operator; and at least two electromagnetic valves attached to one side of the base member (10) to open or close the fluid passageway. The two electromagnetic valves are disposed symmetrically with respect to a central axis (O) along the axial direction of the master cylinder (1) as viewed from a direction perpendicular to the one side of the base member (10).

IPC Classes  ?

• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• B60T 11/16 - Master control, e.g. master cylinders

Abstract

The inside of a cylinder body (82) is a tandem type in which a first slave piston (88b) and a second slave piston (88a) are arranged in series, the pistons are arranged such that part of the shaft section (105) of the second slave piston (88a) overlaps with the inner peripheral surface of an opening section (95) provided in the rearward side, in the displacement direction, of the first slave piston (88b), a long hole (107) extending along the axial direction of the second slave piston (88a) is provided in the shaft section (105), and a connection pin (79) which regulates the initial position of the second slave piston (88a) is inserted into the long hole (107).

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

An object of the invention is to provide a stroke simulator and a bush for a stroke simulator configured so that a bush provided to a stroke simulator can be attached without direction management. The stroke simulator generates brake reaction force by a simulator piston that is displaced within a cylinder by hydraulic pressure generated according to the operation of a brake pedal by a driver. A cylindrical rubber bush (226) which is elastically deformed in an axial direction by pressure from the simulator piston to generate brake reaction force, the bush characterized in that a first end section (226c1) on the simulator piston side and a second end section (226c2) facing the first end section (226c1) contain the same number, at least two, of concave sections (226d) which are concaved in the axial direction, and the concave section (226d) formed in the first end section (226c1) and the concave section (226d) formed in the second end section (226c2) are formed in different positions in the axial direction.

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking

Abstract

A brake hydraulic device for a vehicle, comprising: a base body having a hydraulic pressure path for brake fluid formed therein; an electromagnetic valve that opens and closes the hydraulic pressure path; an electromagnetic coil that drives the electromagnetic valve; and a housing (20) attached to the outer surface of the base body and having a housing chamber housing the electromagnetic valve and the electromagnetic coil. The housing (20) comprises a peripheral wall section (30) having opening sections formed on the front side and the rear side thereof, and an intermediate wall section (40) that partitions the space inside the peripheral wall section (30) into a front side and a rear side. The housing chamber is provided on the rear side of the intermediate wall section (40), and recessed sections (46, 48) and a protruding section (47) are formed in the front surface (40a) of the intermediate wall section (40). Deformation of the housing caused by heat can be prevented using this configuration.

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• B60T 13/12 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet

Abstract

A brake hydraulic device for a vehicle, comprising a base body having a fluid pressure path for brake fluid formed therein, an electromagnetic valve, an electromagnetic coil, a pressure sensor, and a housing (20) attached to the outer surface of the base body. The housing (20) comprises a peripheral wall section (30) and an intermediate wall section (40) that partitions the space inside the peripheral wall section (30) into a front side and a rear side. A plurality of coil-side busbars (51-54) electrically connected to the electromagnetic coil and a plurality of sensor-side busbars (61-66) electrically connected to the pressure sensor are embedded in the intermediate wall section (40), and a layered area (S1) in which the coil-side busbars (51-54) and the sensor-side busbars (61-66) are layered in the front-rear direction is provided in the intermediate wall section (40). The housing (20) can be made more compact and lighter using this configuration.

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
• B60T 13/12 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet

Abstract

　Provided is a stroke simulator in which a piston is displaced and causes an elastic member to elastically deform so as to block a space in which the elastic member is housed, and wherein the piston moves smoothly without the displacement thereof being obstructed by negative pressure formed in the blocked space.　A stroke simulator, in which a simulator piston (2a), which is displaced within a cylinder section (200) due to the operation of a braking operation element by a driver, presses a first return spring (2b), which is stored inside a cylindrical tube section (224d) that has a base, from the opening section (224d2) side of the cylindrical tube section (224d), causing the first return spring (2b) to elastically deform, and generating braking reactive force. When the opening section (224d2) is blocked by the simulator piston (2a), brake fluid which fills the inside of the cylinder section (200) is taken into the inside of the cylindrical tube section (224d) via a flow channel (224d1) which passes from a second cylinder (202) to the inside of the cylindrical tube section (224d).

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking

Abstract

　Provided is a stroke simulator which can suppress the tilting of a piston relative to a sliding surface formed in a cylinder.　A stroke simulator for generating braking reactive force for a brake operation element by using the reactive force conveyed to a simulator piston (2a), the stroke simulator being provided with: a simulator piston (2a) that is displaced by sliding along a sliding surface (205), formed in a first cylinder (201), in response to hydraulic pressure generated by a master cylinder due to the operation of a brake pedal by a driver; and a first return spring which is housed in the first cylinder (201), and which conveys, to the simulator piston (2a), reactive force which is generated by the elastic deformation of the spring under the pressing force resulting from the displacement of the simulator piston (2a). The stroke simulator is characterised in that a cup seal (201b) for sealing the gap occurring between the sliding surface (205) and the simulator piston (2a) is attached in the centre (CL), in the axial direction, of the sliding surface (205).

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking
• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

Provided is a body reservoir assembly capable of having reduced height. In the body reservoir assembly, a reservoir (3) comprises a recessed section (132c) formed in the bottom surface of the reservoir, and reservoir-side connection protrusions (132d, 132d) formed in the recessed section (132c) and which are connected to a cylinder section.

IPC Classes  ?

• B60T 11/22 - Master control, e.g. master cylinders characterised by being integral with reservoir

Abstract

A braking device comprising: a guide piston (103) which surrounds the outer peripheral surface of a rod part (89a) of a second slave piston (88a); a cup seal which is mounted on the second slave piston (88a); and a seal member (103b) which is provided on the guide piston (103). The second slave piston (88a) comprises an enlarged diameter section (117) which comes into contact with the axial-direction surface (119) of the guide piston (103) when the second slave piston (88a) is in the initial position, and the enlarged diameter section (117) is provided with a cut-out section (121) which extends in the internal diameter direction of the second slave piston (88a).

IPC Classes  ?

• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

Abstract

When a starting device (A1) is attached to a vehicle, all of the multiple ports (for example, input ports (15c, 15d) and output ports (15a, 15b)) provided on the front surface part (30) of a base body (10) of a master cylinder (1), as well as the connector connection ports (23a, 24a) of connectors (23, 24) that energize electrical components housed in a housing (20), and a hose connection port (3c) of a reservoir (3) to which a hose is connected, are arranged facing the front of the vehicle.

IPC Classes  ?

• B60T 11/16 - Master control, e.g. master cylinders
• B60T 13/12 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid

Abstract

A plunger pump (1) comprises: a pump body (100) having a cylinder hole (10) in which an expanded diameter section (11) is formed; a lid member (20) press-fitted in the expanded diameter section (11); a plunger (40) for defining a pump chamber (30) between the plunger (40) and the lid member (20) and in contact with an eccentric cam (140); and a coiled spring (50) disposed within the expanded diameter section (11). The coiled spring (50) has an effective winding section (51), a lid-side seat winding section (52), and a plunger-side seat winding section (53). The outer diameter of the lid-side seat winding section (52) is formed to be larger than the outer diameter of the effective winding section (51) and smaller than or equal to the inner diameter of the expanded diameter section (11). The outer diameter of the plunger-side seat winding section (53) is formed to be smaller than the outer diameter of the plunger (40). The configuration increases the stability of the coiled spring (50) within the pump chamber (30) and enables the coiled spring (50) to be disposed at the center of the pump chamber (30).

IPC Classes  ?

• F04B 9/04 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms

Abstract

Provided is a brake fluid pressure control device for a vehicle that controls the action of a fluid pressure adjustment unit, which is able to individually increase or decrease the brake fluid pressure acting on wheel brakes for front wheels and wheel brakes for back wheels, so that the differential pressure between the brake fluid pressures of left and right wheel brakes is at a permissible level, wherein a permissible differential pressure setting means (27) is configured so as to be able to set the permissible differential pressure according to a road surface friction coefficient; a fluid pressure acquisition means (29) acquires the lock fluid pressure, which is the starting fluid pressure when antilock brake control begins in each wheel brake; and if the lock fluid pressure for the wheel brakes for the front wheels as acquired by the fluid pressure acquisition means (29) is at or below a prescribed value that can be determined to be a low friction coefficient, application of the permissible differential pressure according to the road surface friction coefficient is prohibited. In this way, the brake fluid pressure of the left and right wheel brakes can be controlled independently according to the state of the road surface.

IPC Classes  ?

• B60T 8/176 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS

Abstract

An electrically powered brake device (16) comprises a first slave piston (88b) which is housed in a cylinder main body (82) and generates hydraulic pressure in a first hydraulic chamber (98b) by moving forward, a motor which transmits a drive force to the first slave piston (88b), and a regulation pin (102) which is inserted and affixed in a direction orthogonal to the axial direction of the cylinder main body (82) and regulates the retracted position of the first slave piston (88b) when hydraulic pressure from the outside is acting on the first hydraulic chamber (98b), said regulation pin (102) being fixed and affixed in the cylinder mechanism (76) in a direction orthogonal to the axial direction of the cylinder main body (82). Further, clearance (204) is formed between an inner circumferential wall (83) of the cylinder main body (82) and a first groove part (202a) and second groove part (202b) formed on the outer surface of the regulation pin (102). As a result, the transmission of load from the regulation pin to the cylinder main body is suppressed, and deformation of the piston sliding surface of the cylinder main body is prevented.

IPC Classes  ?

• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• B60T 8/40 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the br
• B60T 8/42 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having expanding chambers for controlling pressure

Abstract

Untreated bosses (83a, 83b, 85a, and 85b) are formed in advance in two directions on a cylinder mechanism (76). The bosses on one side (83a and 83b) are formed as mounts to attach a motor cylinder device (16) to a vehicle body, and the other bosses (85a and 85b) are formed as ports to connect to the cylinder mechanism (76). The mount bosses (83a and 83b) are formed on the outside in the width direction of the vehicle, and the port bosses (85a and 85b) are formed on the inside in the width direction of the vehicle.

IPC Classes  ?

• B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
• B60T 8/32 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
• B60T 17/08 - Brake cylinders other than ultimate actuators

Abstract

Disclosed is an electric brake device for a vehicle, wherein a motion conversion mechanism and a reducer comprised of first and second planetary gear mechanisms are provided between a disk brake and an electric motor. A speed reduction chamber (59) for containing a reducer (23A) is defined between a motor case (83) to which a caliper body (26) is attached and the caliper body (26). A ring gear (64) common to first and second planetary gear mechanisms (61, 62A) is inserted into the speed reduction chamber (59), and is prevented from moving in the axial direction by the motor case (83) and the caliper body (26). The end portion of the ring gear (64), which is opposite to an electric motor (22A), is engaged in the caliper body (26). Thus, the number of components for affixing the ring gear common to the first and second planetary gear mechanisms can be reduced to a great extent, and the ring gear can be easily assembled.

IPC Classes  ?

• F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
• F16H 1/28 - Toothed gearings for conveying rotary motion with gears having orbital motion

Abstract

Disclosed is a dynamic sealing member that comprises a ternary fluoroelastomer (FKM) and carbon nanofibers incorporated therein. The carbon nanofibers are either carbon nanofibers having an average diameter of 10-20 nm or carbon nanofibers which have an average diameter of 60-110 nm and have undergone low-temperature heat treatment. When the carbon nanofibers having an average diameter of 60-110 nm and having undergone low-temperature heat treatment are examined by Raman scattering spectrometry, the ratio of the intensity (D) of the peak at around 1,300 cm-1 to the intensity (G) of the peak at around 1,600 cm-1, D/G, is greater than 0.9 but less than 1.6. When the dynamic sealing member is examined through a tensile fatigue test under the conditions of 200ºC, a maximum tensile stress of 2.5 N/mm, and a frequency of 1 Hz, the number of cycles to rupture is 10 or more. The dynamic sealing member has excellent heat resistance and wear resistance.

IPC Classes  ?

• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
• C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
• F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing

Abstract

Disclosed is a sealing member comprising a tetrafluoroethylene-propylene copolymer (FEPM) and carbon nanofibers. The sealing member has a number of cycles to fracture of 10 or more in a tensile fatigue test at 150˚C, a maximum tensile stress of 2 N/mm and a frequency of 1 Hz. The sealing member has excellent heat resistance and abrasion resistance.

IPC Classes  ?

• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
• C08L 23/14 - Copolymers of propene
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing

Abstract

Disclosed is a carbon-fiber composite material which comprises 100 parts by mass of an elastomer (30) and 20-100 parts by mass of carbon nanofibers (90) that have a reduced content of branches and have been oxidized. The carbon-fiber composite material (50) has a dynamic modulus (E') at 200ºC and 10 Hz of 10-1,000 MPa and a volume resistivity of 106-1018 Ω·cm.

IPC Classes  ?

• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C01B 31/02 - Preparation of carbon; Purification

Abstract

Disclosed is a sealing member comprising a hydrogenated acrylonitrile-butadiene rubber (HNBR) and carbon nanofibers. The sealing member has a number of cycles to fracture of 7,000 or more in a tensile fatigue test at 70˚C, a maximum tensile stress of 4 N/mm and a frequency of 1 Hz. The sealing member has excellent abrasion resistance.

IPC Classes  ?

• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 7/06 - Elements
• C08L 9/02 - Copolymers with acrylonitrile
• F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing

Abstract

A caliper body support structure for a vehicle disc brake, configured in such a manner that slide pin mounting sections can be easily formed on a vehicle suspension device and that slide pins can be simply and easily mounted to the slide pin mounting sections improve work efficiency. The slide pins (6, 7) comprise slide pin bodies (6a, 7a) which slide in guide holes (8m, 8n) in a caliper body (8), and the slide pins (6, 7) also comprise pin mounting bolts (6b, 7b) for mounting the slide pin bodies (6a, 7a) to slide pin mounting sections (3, 5). The slide pin mounting sections (3, 5) have mounting surfaces (3f, 5e) located on the opposite side of a disc rotor, and the mounting surfaces (3f, 5e) are disposed on the same plane (F3) which passes through the center axis of a front fork (4), is located further toward the outside, relative to the vehicle body, than a plane (F1) parallel to a side surface of the disc rotor (2), and is parallel to the parallel plane (F1).

IPC Classes  ?

• F16D 65/02 - Braking members; Mounting thereof
• F16D 55/224 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members

Abstract

Provided is a disc brake for vehicles, said disc brake having a simple structure, being capable of reliably preventing uneven wear of friction pads, and allowing lighter friction pads. A pair of friction pads (6, 6) each provided with a lining having a contact surface are disposed opposite each other on both sides of a brake disc (2), between an action part (5a) and a reaction part (5b) of a caliper body (5) disposed straddling the periphery of the brake disc (2). For the contact surface of the friction pad (6) on the side of the action part (5a), the trailing edge with respect to the brake disc is formed smaller than the leading edge, and for the contact surface of the friction pad (6) on the side of the reaction part (5b), the leading edge with respect to the brake disc is formed smaller than the trailing edge, thereby achieving the abovementioned goal.

IPC Classes  ?

• F16D 65/092 - Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
• B62L 1/00 - Brakes; Arrangements thereof

Abstract

A caliper body for a two system-type disc brake for a vehicle, the caliper body having a reduced-size and improved air bleeding properties obtained using a simple configuration. A caliper body (6) for a two system-type disc brake (1) for a vehicle, wherein a first bleeder hole (6o) and a communication path (23a) which connects cylinder holes (11, 13) for a first brake system are arranged on a straight line located on the outside, in the disc radius direction, of an imaginary line (IL1) which rectilinearly connects the inner edges, in the disc radius direction, of the cylinder holes (11, 13), and wherein a cylinder hole (10) for a second brake system is provided further toward the outside than the communication path (23a) in the disc radius direction.

IPC Classes  ?

• F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
• F16D 55/224 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
• F16D 65/02 - Braking members; Mounting thereof

Abstract

Disclosed is a method for producing a sealing member (22) for piping materials having excellent chlorine resistance, which comprises a first step and a second step.  The first step is a step wherein first carbon nanofibers produced by vapor deposition are subjected to an oxidation treatment, thereby obtaining second carbon nanofibers each having an oxidized surface.  The second step is a step wherein carbon black having an average particle diameter of from 50 nm to 10 μm and the second carbon nanofibers are mixed into an ethylene-propylene rubber and dispersed in the ethylene-propylene rubber by a shearing force.

IPC Classes  ?

• C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
• C01B 31/00 - Carbon; Compounds thereof
• D01F 9/127 - Carbon filaments; Apparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours
• D06M 11/34 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxygen, ozone or ozonides
• F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing

Abstract

A process for carbon nanofiber production which includes the step of pulverizing untreated carbon nanofibers produced by the gas-phase growth method. In the pulverization step, the untreated carbon nanofibers are pulverized so as to have a tap density 1.5-10 times that of the carbon nanofibers before pulverization. Also provided is a process for carbon fiber composite material production which includes a step in which carbon nanofibers (40) are mixed with an elastomer (30) and are evenly dispersed in the elastomer (30) by means of shearing force to obtain a carbon fiber composite material.

IPC Classes  ?

• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C01B 31/02 - Preparation of carbon; Purification
• D01F 9/127 - Carbon filaments; Apparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours

Abstract

A carbon fiber composite material which comprises an elastomer (30) and carbon nanofibers (40) evenly dispersed therein. The carbon nanofibers (40) are ones obtained by producing carbon nanofibers by the gas-phase growth method and then heat-treating the nanofibers at a temperature which is higher than the reaction temperature in the gas-phase growth method and is in the range of 1,100-1,600°C.

IPC Classes  ?

• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C01B 31/02 - Preparation of carbon; Purification
• D01F 9/127 - Carbon filaments; Apparatus specially adapted for the manufacture thereof by thermal decomposition of hydrocarbon gases or vapours