This high-temperature molding die comprises: an outer mold including a holding surface; and an inner mold including an outer surface at least a part of which is adjacent to the holding surface, and an inner surface that defines a molding chamber. When the temperature of the outer mold and the inner mold before high-temperature molding is T, the temperature rise accompanying the high-temperature molding is ΔT, the thermal expansion coefficient of the inner mold in a temperature region from the temperature T to a temperature T+ΔT is α, and the thermal expansion coefficient of the outer mold is β, the relationship of a formula (1) is satisfied. Formula: (1) α>β.
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
A planetary gear device (1) includes a sun gear (5), a carrier (6), a plurality of planetary units (7) provided on the carrier (6), and a ring gear (9). Each of the planetary units (7) includes a first planetary gear (71) meshing with the sun gear (5), a second planetary gear (72) meshing with the ring gear (9), a first rotating body (73) disposed coaxially with the first planetary gear (71), a second rotating body (74) disposed coaxially with the second planetary gear (72), and a winding transmission body (75) wound around the first rotating body (73) and the second rotating body (74). Each of the winding transmission bodies (75) of the plurality of planetary units (7) is arranged such that at least a part thereof overlaps with another winding transmission body in an axial direction when viewed from a direction orthogonal to the axial direction.
F16H 37/02 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings
F16H 7/06 - Gearings for conveying rotary motion by endless flexible members with chains
F16H 9/24 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains, toothed belts, belts in the form of linksChains or belts specially adapted to such gearing
B62M 11/14 - Transmissions characterised by use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
B62M 11/18 - Transmissions characterised by use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears with a plurality of planetary gear units
F16H 3/44 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
F16H 9/26 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members with members having orbital motion
A chain measurement device (2) is a measurement device for measuring a slack amount of a chain wound around sprockets, and includes a main body portion (5) including an acceleration sensor (22) configured to detect acceleration in a gravitational direction, and an attachment portion (6) configured to attach the main body portion (5) to the chain. The acceleration sensor (22) is configured to detect acceleration in the gravitational direction in a case where the main body portion (5) attached to a chain is lifted upward within a range of a slack amount of the chain and then dropped.
G01L 5/101 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors inserted into the flexible member
Roller chains being parts of machines; silent chains being
parts of machines; sprockets, being parts of machines;
chains for machines, not for land vehicles; transmission
belt for machines, not for land vehicles; shaft coupling for
machines, not for land vehicles; chains for conveyors; power
transmissions and gearings for machines, not for land
vehicles; parts of non-electric prime movers; conveyor
machines; loading-unloading machines and apparatus; power
transmissions and gearing, machine elements not for land
vehicles; shafts, axles or spindles, machine elements other
than for land vehicles; bearings, machine elements not for
land vehicles; shafts, couplings or connectors, machine
elements not for land vehicles.
This chain comprises: multiple outer links each having a pair of outer plates and a pin connecting both ends of the pair of outer plates; and multiple inner links each having a pair of inner plates, a bush connecting both ends of the pair of inner plates, and a roller rotatably fitted to the bush, wherein the inner links and the outer links are alternatively connected. A coating (20) of a-C:H type diamond-like carbon is formed on outer peripheral surfaces of the bush and the roller. The thickness of the coating (20) is 1.5-4.0 μm, and the thickness of the bush outer peripheral surface is equal to larger than the thickness of the roller outer peripheral surface.
An inner plate (10) of a chain is equipped with a rear surface which contacts a guide member which guides the chain when driving the chain. An inner plate rear surface which is equipped with sliding contact arc sections (102a, 102b) which are in sliding contact with a guide member, end arc sections (101a, 101b) which each comprise an end section of the inner plate on one side thereof, and connecting sections (C1, C2) which connect the interval between the sliding contact arc sections and the end arc sections, wherein a gap (V) is formed between the connecting section (C1) and the common tangent (TL) of the sliding contact arc section (102b) and the end arc section (101a).
A planetary gear device (1) is provided with: a sun gear (5); a carrier (6); a plurality of planetary units (7) installed on the carrier (6); and a ring gear (9). The planetary units (7) are each provided with: a first planetary gear (71) that meshes with the sun gear (5); a second planetary gear (72) that meshes with the ring gear (9); a first rotator (73) arranged coaxially with the first planetary gear (71); a second rotator (74) arranged coaxially with the second planetary gear (72); and a wrap-around drive element (75) wound around the first rotator (73) and the second rotator (74). The respective wrap-around drive elements (75) of the plurality of planetary units (7) are arranged so as to overlap each other in an axial direction at least in part when viewed from a direction orthogonal to the axial direction.
F16H 1/28 - Toothed gearings for conveying rotary motion with gears having orbital motion
F16H 9/26 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members with members having orbital motion
F16H 37/02 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings
A tensioner according to the present invention comprises a mainspring that biases a tensioning member. The mainspring generates damping force by the frictional force when sliding occurs between leaf springs (21a) wound in a spiral shape. The sliding surface (21a1) of the leaf spring (21a) has a protruding portion (31), the end surface of which is the sliding part, and a recessed portion (41) from which is discharged abrasion powder generated by sliding of the sliding part.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Drive chains for land vehicles; transmission chains for land
vehicles; transmission belts for land vehicles; sprockets
for land vehicles; power transmissions and gearings for land
vehicles; vehicle wheels; rims for vehicles wheels; vehicle
wheel spokes and nipples; brake shoes for vehicles; brake
pads for vehicles; mechanical elements for land vehicles;
two-wheeled motor vehicles, bicycles and their parts and
fittings; automobiles and their parts and fittings; railway
rolling stock and their parts and fittings; aircraft and
their parts and fittings.
11.
CHAIN MEASURING DEVICE, CHAIN MEASURING SYSTEM, AND CHAIN SAG CALCULATION METHOD
This chain measuring device (2) measures the sag of a chain wound around a sprocket, and comprises: a body part (5) having an acceleration sensor (22) capable of detecting acceleration in the direction of gravity; and an attachment part (6) for attaching the body part (5) to the chain. The acceleration sensor (22) is configured to detect acceleration in the direction of gravity when the body part (5) attached to the chain is lifted within the slack amount of the chain and then dropped.
G01B 21/00 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
F16H 7/00 - Gearings for conveying rotary motion by endless flexible members
F16H 7/06 - Gearings for conveying rotary motion by endless flexible members with chains
12.
VACUUM CONVEYANCE DEVICE AND WORKPIECE SORTING DEVICE
A vacuum conveyance device comprises: a moving body that moves with a workpiece mounted to a front surface thereof, said front surface being provided with a plurality of suction holes; a suction chamber (42b) that is provided to a rear surface side of the moving body; a suction device (43b) that depressurizes the interior of the suction chamber and applies suction, from the rear surface side, to the workpiece on the moving body; and an atmospheric venting means (60) that can open the suction chamber (42b) to the atmosphere.
A chain guide includes a contact guide portion that comes into contact with a chain and guides the chain, and a vibration control portion having a zero-touch surface extending along a travel line of the chain.
A tensioner includes a movable section, a fixed section, a flat spiral spring, and a back-up spring. The movable section receives load from an entrained transmission body through a tension member. The fixed section supports the movable section so as to be capable of displacing. The flat spiral spring biases the movable section so as to resist the tension member. The flat spiral spring unwinds in a state in which there is a small inter-plate friction force in cases in which there is a large biasing force applied to the tension member to counter load acting from the tension member. The flat spiral spring winds-up in a state in which there is a large inter-plate friction force in cases in which there is a small biasing force applied to the tension member to counter load acting from the tension member. The back-up spring limits wind-up of the flat spiral spring.
A bottom land (13) has a first arc face (13a) having a first radius (R) and a second arc face (13b) having a first radius (R'). An operating flank (15) has a third arc face (27) connected to the first arc face (13a) and having a second radius (r). A non-operating flank (16) has a fourth arc face (31) connected to the second arc face (13b) and having a third radius (r') larger than the second radius (r). The center angle (A) of the first arc face (13a) is larger than the center angle (A') of the second arc face (13b). The center (O3) of the third arc face (27) is closer to the center of a sprocket (11) than the center (O4) of the fourth arc face (31) is.
Copper plating (D) is applied to an entire pin starting material containing 0.5 to 0.6% C and having a hardness of 550 to 750 HV. An outer circumferential surface of a tip end portion (B) of the pin starting material is ground to remove the copper plating, and a countersunk hole (19) for swaging is formed. A decarburizing process is performed to release carbon from the outer circumferential surface of the tip end portion, and carbon is diffused into the entire tip end portion (B) by means of heat treatment to reduce the hardness of the tip end portion (B) (500 to 650 V). The copper plating of the joint pin 13 is removed by grinding.
B21L 9/02 - Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains of roller-chain or other plate-link type
C25D 5/26 - Electroplating of metal surfaces to which a coating cannot readily be applied of iron or steel surfaces
A roller chain includes an inner link and an outer link. A bush is projected out of an outer side surface of an inner plate by a predetermined amount and an end surface of a bush being projected is brought into contact with an inner side surface of the outer plate to form a predetermined gap between the outer side surface of the inner plate and the inner side surface of the outer plate. The predetermined gap is within a range of 7 to 18[%] of the distance between the inner side surfaces of the pair of outer plates.
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
04 - Industrial oils and greases; lubricants; fuels
Goods & Services
Cleaners for chains; detergents for chains; soaps and
detergents. Lubricating and anti-rust oils for chains; lubricating
grease; lubricating oil; industrial grease; solid
lubricants; solid fuels; liquid fuels; mineral oils and
greases for industrial purposes [not for fuel].
22.
CHAIN GUIDE AND CHAIN TRANSMISSION DEVICE USING SAME
This chain guide (6) has: a contact guide part (13) for guiding a chain (4) by coming into contact with the chain (4); and a vibration control part (15) having a zero touch surface extending along a travel line (S-S) of the chain (4).
A securing-side support arm (17) of a torsion coil spring (10) is provided with a locking part (17a) and a pressing part (17c). The locking part (17a) is accommodated in a recessed spring accommodation part (22) provided in a lever (9), and an engaging part (22a) makes contact with the locking part (17a), locking the biasing force of the spring. A pressing force (F) acts on the pressing part (17c), removing the locking part (17a) from the spring accommodation part (22) and releasing the locking caused by the engaging part (22a).
A step section (16) having two rounded surfaces (R2, R3) and having a difference (d) in level is provided between a bead seat section (13) and a well section (15). The inner diameter-side surface (17) of the bead seat section is formed as a circular arc surface (R6) or a straight surface and is sloped along the entire length thereof in an inner diameter direction toward the center in a width direction.
A spoke wheel includes a light alloy rim, a hub, and a plurality of wire spokes connecting the rim with the hub. The rim includes mounting flanges provided at asymmetrical positions with respect to a widthwise center of the rim and is connected with the hub by assembling the spokes to the mounting flanges. The spokes are disposed by being offset to the widthwise center of the rim.
The energy of a load inputted from a chain or a belt is effectively reduced by a simple configuration. A tensioner (10) comprises: a support member (12); a propelling member (32) supported on the support member (12) so as to be able to linearly reciprocate in a first direction (X); and a contact-type mainspring (34) which is disposed adjacent to the propelling member (32) in a second direction (Y) orthogonal to the first direction (X), which has as a winding axis direction a third direction (Z) orthogonal to the first direction (X) and the second direction (Y), an inner end part (34B) of which is locked to the support member (12), an outer end part (34C) of which is locked to the propelling member (32), which urges the propelling member (32) in an advancing direction (X1), and which is tightened by movement of the propelling member (32) in a receding direction (X2).
A tensioner (10) comprising: a movable part (32) that receives a load from a winding transmission body via a tension member; a stator part (12) that supports the movable part (32) in a displaceable manner; a coil spring (34) that urges the movable part (32) against the tension member and that becomes unwound with a low intersheet friction force when the urging force to the tension member is higher than the load from the tension member and becomes wound with a high intersheet friction force when the urging force to the tension member is lower than the load from the tension member; and a backup spring (92) that restricts winding of the coil spring (34).
A tensioner includes a power spring, and a backup member being in contact with the power spring and supporting the power spring by acting an urging force in a direction opposite to a radial shift of the power spring in a direction in which the power spring is wound. The power spring is unwound in a condition in which an inter-plate frictional force of the power spring is small in a case where an urging force acting from a power spring to a tension member is greater than a load acting from the tensioner arm to the power spring and the power spring is wound in a condition in which the inter-plate frictional force of the power spring is large in a case where the urging force acting from the power spring to the tension member is smaller than the load acting from the tension member to the power spring.
A chain for a vacuum conveyor, includes a plurality of links each having a flat front surface for placing a conveyance object and a back surface facing to a suction portion. A plurality of adsorption holes each having a large opening area on the front surface and a small opening area on the back surface is formed in the link.
B65G 17/46 - Means for holding or retaining the loads in fixed position on the load-carriers, e.g. magnetic
B65G 17/08 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriersEndless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element
B65G 17/28 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriersEndless-chain conveyors in which the chains form the load-carrying surface comprising a series of co-operating units, e.g. interconnected by pivots extensible, e.g. telescopic
B65G 17/38 - Chains or like traction elementsConnections between traction elements and load-carriers
The relationships P1'=P+Cl and P2=P are true, where P1' is the distance between centers of pin holes in outer plates (12), P2 is the distance between centers of bush holes in inner plates, Cl=(D−d) is the clearance between a pin (13) and a bush (17), and P is a reference pitch of a sprocket. All pitches are thereby the reference pitch (P) when compressive force is exerted.
The present invention provides a technology enabling easy measurement of a distance to be measured. An image acquisition unit 111 acquires a captured image transmitted thereto. An image analysis unit 112 ascertains the number of reference points, and performs analysis as to whether or not the image needs to be corrected. An image correction unit 113 corrects the captured image by various methods, when the image is determined to need to be corrected. A distance measurement unit 114 measures the chain pitch of a drive chain DC. A reference point specification unit 121 specifies at least two reference points between which the absolute distance in an actual space is known. A unit distance calculation unit 122 calculates, as a unit distance, the value of conversion to a prescribed unit absolute distance in the captured image. An absolute distance calculation unit 123 calculates the absolute distance of a pitch on the basis of the unit distance and an image of the pitch. A pitch extension information provision unit 115 specifies, as a pitch extension, the difference between the absolute distance of the pitch and the reference value of the pitch.
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
This sealed chain, when subjected to a large tensile load, deforms such that a bushing is bent and the amount of protrusion of a bushing protrusion becomes smaller. A bushing protrusion 26a protruding from an inner plate 25 of a bushing 26 has a radially outwardly expanding portion L formed by plastic deformation caused by means of a punch or the like. In this way, the fall-resistance of the inner plate 25 with respect to the bushing 26 is increased. The bushing is made from medium carbon steel or alloyed steel, has a flat hardness of 400 to 700 [HV] throughout a cross section thereof, and prevents the development of cracking in a bushing end surface during plastic deformation of the expanding portion L of the bushing protrusion 26a.
According to the present invention, a bush (23) protrudes a predetermined amount further than outer side surfaces (22a) of inner plates (22), end faces (23b) of the protruding bush (23) abut inner side surfaces (27b) of outer plates (27), and predetermined gaps (F) are formed between the outer side surfaces (22a) of the inner plates (22) and the inner side surfaces (27b) of the outer plates (27). Consequently, the predetermined gaps (F) are ensured between the inner plates (22) and the outer plates (27) and oil reservoirs (35) are formed around bush protruding parts (23a). Lubricating oil (O) is introduced from the oil reservoirs (35) to a bearing part (11).
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Motorcycle chains; mechanical elements for land vehicles;
two-wheeled motor vehicles; bicycles and their fittings;
automobiles and their parts and fittings.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Motorcycle chains; Mechanical elements for land vehicles, namely, power transmissions; Mechanical elements for land vehicles, namely, sprocket, drive and driven gears, gear wheels, speed change gears; Two-wheeled motor-vehicles, namely, motorcycles, motor scooters, motorized bicycles and their structural parts and fittings; Bicycles and their structural parts and fittings; Automobiles and their structural parts and fittings
For conventional mechanical tensioners using a spiral spring, the function of attenuating and cushioning chain vibrations is inadequate or durability is inadequate, and the range of use thereof is limited. In the tensioner (17) of the present invention, the biasing force of a spiral spring (21) acts on a plunger (20) and opposes the load from a tensioner arm (16). When the plunger (20) protrudes, the diameter of the spiral spring expands and the spring is loosened, and the interlayer frictional force under these circumstances is small. When the plunger (20) is pushed in, the spiral spring (21) is tightened and a large interlayer frictional force due to diameter reduction is active. As a result of this difference in frictional force, chain vibrations are attenuated and cushioned.
The present invention overcomes the problem that, in a chain that conveys to-be-conveyed articles via suction through suction holes that pass through a flat mounting surface, the suction force will be insufficient and stable conveying will be impossible when the suction holes are of a straight form. Suction holes 15 are formed in an endless link 11 by a connection member. The suction holes 15 comprise a taper part 15a having an opening that comprises a large area of an obverse surface A to be the mounting surface, and a straight part 15b by which a reverse-surface B side is connected to the smallest cross-sectional surface area of the taper part.
B65G 17/46 - Means for holding or retaining the loads in fixed position on the load-carriers, e.g. magnetic
B65G 17/08 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriersEndless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element
In the present invention a register clip (35) comprises engaging parts (35a) engaging an engagement groove, a spring part (35b), and an operation part (35c). The number of coil windings, the winding diameter, and the like of the spring part (35b) can be designed with a high degree of freedom, and the engaging parts (35a) expand centered around the spring part (35a), so the expansion resistance can be optimized.
A chain includes a plurality of inner links and a plurality of outer links. Each of the inner links includes a pair of inner plates each having a bush hole and a bush. The bush includes both end portions which are press-fitted into bush holes of the pair of the inner plates. Each of the outer links includes a pair of outer plates and a pin. A diametric dimension in a pitch direction of an inner diametric surface of the bush is constant along an entire axial length of the bush. A diametric dimension in a height direction of the inner diametric surface at each of the both end portions of the bush is smaller than a diametric dimension in the height direction of the inner diametric surface at an intermediate part of the bush located between the pair of inner plates.
The present invention has: a base section (11) connected to a steering shaft for adjusting the steering angle of a vehicle wheel; a left spoke section (12L) extending to the left and affixed to the base section (11); a right spoke section (12R) extending to the right and affixed to the base section (11); a left grip bar (13L) affixed to the left spoke section (12L); a right grip bar (13R) affixed to the right spoke section (12R); and acceleration grip levers (14L/14R) to be operated when one of the grip bars (13L/13R) among the left grip bar (13L) and the right grip bar (13R) is being gripped.
B60K 26/02 - Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements
B62D 1/02 - Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
B60R 19/18 - Means within the bumper to absorb impact
B60R 19/03 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
Small vehicles provided with a chassis that is for a very small electric vehicle and that has a ladder-type main frame are unprotected against lateral collisions. In the present invention, a chassis (20) has main frame (21) and a side frame (22). The side frame (22) has a projecting member (26) that projects in the lateral direction and a lateral coupling member (27). The lateral coupling member (27) is joined to the main frame (21) so as to have less joining strength in the lateral direction than in the front-rear direction. Seats (7) are securely joined to the lateral coupling member (27). When the projecting member (26) is deformed during a lateral collision, the lateral coupling member (27) becomes disjoined from the main frame (21) and moves with the seats (7) so as to escape from the colliding object.
B60R 21/02 - Occupant safety arrangements or fittings
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
An air-conditioning device to be provided to a small vehicle that has a power source that is for a very small electric vehicle or the like and has insufficient capacity to drive an air-conditioning device. An air-conditioning device (12) that has: a cold generating unit (12a) that has a Peltier element (23); a cold storing unit (12b) that has a cold storing material (36) that is contained in an insulating container (35); and a cold radiating unit (12c) that has a radiant cooling radiator (39). While a travel battery is being charged, the cold generating unit (12a) is driven and the cold storing material (36) is solidified. When a vehicle is in use, a coolant is circulated between the cold storing material (36) and the radiant cooling radiator (39), and cold air is blown out of a blowout member (20) by means of a radiant cooling fan (40).
F25B 5/00 - Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
F25B 21/02 - Machines, plants or systems, using electric or magnetic effects using Peltier effectMachines, plants or systems, using electric or magnetic effects using Nernst-Ettinghausen effect
The purpose of the present invention is to improve the stability of an electric vehicle that can float on water. The electric vehicle is provided with front wheels, rear wheels, a vehicle cabin forming portion, a door member, and a metal frame. The frame supports the front wheels, the rear wheels, and the vehicle cabin forming portion. The front wheels are driven by an electric motor. When the front wheels, the electric motor, the rear wheels, and a battery are projected in a direction parallel to the horizontal direction of the electric vehicle, the electric motor is disposed at a position where at least a portion of the electric motor overlaps the front wheels. The battery is disposed at a position where at least a portion of the battery overlaps the rear wheels. The center of gravity of the electric vehicle is lower than the waterline under both light-load conditions and full-load conditions, and the center of gravity in the longitudinal direction of the electric vehicle is located between the front wheels and the rear wheels.
At least one member composing a chain bearing, such as a pin, includes a surface layer composed of vanadium carbonitride (VCN) coating on a surface of a base material of the at least one member. An oxide (VO) film having a predetermined thickness is also formed on a surface of the surface layer such that the oxide film is interposed between the surface layer and another member, such as a pin hole, composing the chain bearing.
A chain includes a plurality of sliding members that moves relative to each other. At least one of sliding members is formed of a martensitic stainless steel, and contains, in a superficial layer thereof, elemental substances of carbon and nitrogen at a range from 0.17 to 0.50 mass % in total, while a precipitation amount of carbide and nitride is 0.05 mass % or less in total.
A back face of each inner link plate of the chain is curved convexly. Heights from a pitch line connecting centers of pin holes of inner and guide link plates to the convex apex portion of the inner link plate and to an apex portion of the guide link plate are equalized. The convex apex portions are brought into contact with a guide face of the chain guide per every pitch and the ear apex portions are brought into contact with the chain guide per every pitch while being shifted by a half pitch from the convex apex portions.
A spoke receiving hole extends through a flange formed on a rim so as to incline by a predetermined angle in a radial direction with respect to a line perpendicular to a wheel center plane. A head of a spoke seats on a seating surface provided on one side surface of the spoke receiving hole in contact at a region I on the side closer to a rim body, and a head straight portion of the spoke contacts with an edge portion K of an opening on the side distant from the rim body to which a hole portion directly opens on the side opposite from the seating surface of the spoke receiving hole.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Vehicles; vehicles for locomotion by land, air, water or rail; automobiles; motorcycles; bicycles; driving chains for land vehicles; transmission chains for land vehicles; vehicle wheels; vehicle wheel rims; vehicle wheel spokes; sprockets for vehicles; brake shoes for vehicles; gearing for land vehicles; transmissions for land vehicles; parts, fittings components and accessories for all the aforesaid goods.
Provided is a small-pitch, yet high-strength, silent chain which is formed by bendably connecting together a plurality of link plates via pins, and by mounting side plates on both sides. The pitch of the silent chain is set to be 4.5 mm - 5.5 mm. The outside diameter of the pins is set to be 1.8 mm - 2.2 mm. Vanadium carbide coatings are formed on the surfaces of the pins (2).
Provided is a roller chain such that both weight saving and sufficient strength are achieved. This roller chain is configured in such a way that the dimensions of two types of roller chains having different pitches are combined together. That is, the dimensions of the pitch of link plates (3, 5) are set to be equal to that of the outer link plates and the inner link plates of a larger-pitch roller chain, with the result that the overall longitudinal dimensions of the link plates (3, 5) are extended, and the dimensions of pins (4), bushings (6), and rollers (7) are set to be the same as those of the pins, bushings, and rollers that are components of a smaller-pitch roller chain.
Disclosed is a clip for chain with excellent durability, which minimizes deformation of leg parts and embraces a pin groove while maintaining the clearance of a pin engagement part on the open side. The tip of one leg part (33b) is formed in a straight shape, while a projection part (33d) projecting in a hook shape is formed at the tip of the other leg part (33c). One pin is engaged with the pin engagement part (35a) of another pin. Said leg part (33b) is bent to cross over the tip of the other pin and is rotated there around. A curved part (f) of the other leg part (33c) is engaged with the pin groove of the other pin, and a pressing part (33e) is also engaged with the pin groove.
A silent chain using double-sided driving link plates having symmetrical upper and lower teeth has a problem that it is unable to assure a required risky sectional area of the plates because a width between upper and lower crotches is narrow. The invention provides a silent chain using double-sided driving link plates whose required risky sectional area is maintained by using link plate whose back side is undercut and whose upper and lower parts are unsymmetrical even though its front side has a shape of a normal link plate. A distance from a line connecting centers of pin holes to a bottom of an upper-side crotch is equal to or more than ½ of a diameter of the pin hole to assure the risky sectional area. Teeth of the back side are cut away to form a flat surface to assure a contact area with a shoe and others.
There is provided a wear-resistant chain having a high durability even in severe use environments such as those of a timing chain of an engine even though it is highly efficient and productive. A miniaturizing agent containing silicon is doped in a vanadium cementation process of a base material of steel. Vanadium carbide forming a surface-hardened layer contains a secondary phase composed of an amorphous structure containing silicon within crystal grains and a crystal grain size of the vanadium carbide is miniaturized to 1 μm or less.
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
B32B 19/00 - Layered products essentially comprising natural mineral fibres or particles, e.g. asbestos, mica
C23C 10/52 - Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in one step
C23C 10/14 - Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases more than one element being diffused in one step
C23C 10/16 - Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases more than one element being diffused in more than one step
C23C 10/28 - Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
C23C 12/00 - Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
A greasing through hole is perforated through one outer link plate, and greasing device is attached to the through hole. Degreasing through-holes are perforated through an outer link plate or an inner link plate on the side distant from the outer link plate with a bearing section A between the link plates, and degreasing device 22 is attached to those through-holes. Lubricant injected from the greasing device is supplied to the bearing section A through a gap c between the sealing device and the outer link plate, and used lubricant within the bearing section A is discharged out of the degreasing device through another gap c.
A punch shaft (10) and a die shaft (20) are supported by side plates (3L, 3R) in a parallel and vertically spaced apart relationship, and the punch shaft (10) and the die shaft (20) form a structural member (strength retaining member). The die shaft (20) has a die shaft body (21) formed in a hollow circular cylindrical shape. Dies (21b) corresponding to punches (13) of the punch shaft (10) are mounted on the outer periphery of the die shaft body (21) by being fitted in die holes (21d) penetrating through up to a hollow (21a) in the die shaft (20). A waste discharge screw plate (30) fixed to the side plate (3R) is placed in the hollow (21a) in the die shaft (20). As the die shaft (20) rotates, punch waste is transferred along a sloped surface of the waste discharge screw plate (30) and discharged from a punch waste discharge hole (21c). The punch unit can be easily adjusted, can form high quality holes in a sheet, and can reliably discharge punch waste.
B26D 7/18 - Means for removing cut-out material or waste
B26F 1/08 - Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work wherein the tools are carried by, and in operation move relative to, a rotative drum or similar support
Bush (9) is press inserted in rotating link row (12) capable of relative rotation to pin (3). The bush (9) is one wrought into seamless cylindrical form by cold forging, which like the pin (3) is provided at its surface with a metal carbide layer of 1300 Hv or higher Vickers hardness formed on the surface thereof by cementation of chromium, vanadium, etc. Thereafter, the bush (9) is subjected to quenching, tempering or isothermal transformation treatment. Consequently, not only are the abrasion resistances of pin and link plate of silent (link) chain enhanced but also there can be attained productivity increase and cost reduction.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Roller chains; silent chains; chains for machines not for
land vehicles; chains for conveyors; power transmissions and
gearings for machines not for land vehicles; conveyor
machines; loading-unloading machines and apparatus. Chains for bicycles; chains for motorcycles; chains for
automobiles; chains for land vehicles; power transmission
belts for land vehicles; sprockets; power transmissions and
gearings for land vehicles; wheels for vehicles; rims for
vehicles; spokes; parts and accessories for bicycles,
motorcycles and automobiles.
An antiwear chain which can be efficiently produced with excellent productivity and, despite this, has high durability even under severe use conditions as for, e.g., the timing chain of an engine. In the vanadium diffusion/penetration treatment of a steel base, a silicon-containing size-reducing agent is added. The vanadium carbide forming a surface-hardening layer has, in the crystal grains, a second phase comprising a silicon-containing amorphous structure. This vanadium carbide has a crystal grain diameter reduced to 1 쎽m or smaller.
A chain tensioner has a plunger (14) slidably fitted in a blind cylinder (12) formed in a housing (11), and the plunger (14) is elastically urged by a return spring (13) in the direction where the plunger projects from the cylinder (12). An engagement clip (19) is attached to the opening of the cylinder (12), and an engagement section engageable with the engagement clip (19) is provided at the end on the projection side of the plunger (14). The engagement clip (19) and the engagement section are engaged with and disengaged from each other depending on the rotational position of the plunger (14).
F16H 7/08 - Means for varying tension of belts, ropes, or chains
F02B 67/06 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Machine parts, namely, roller chains * not for land vehicles * and silent chains * not for land vehicles * for industrial machines and not for land vehicles; drive chains and transmission chains for machines and not for land vehicles; machine parts, namely, chains for conveyors; power transmissions and gearings for machines not for land vehicles; conveyor machines; loading and unloading machines Chains for bicycles; chains for motorcycles; chains for automobiles; chains for land vehicles, namely, transmission chains; [ power transmission belts for land vehicles; ] drive and driven sprockets for land vehicles; [ cam sprockets for land vehicles; ] power transmissions and gears for land vehicles; wheels for [ vehicles ] [ aircraft, ] * automobiles, two-wheeled motor vehicles; * [ and bicycles; ] rims [ and spokes ] for [ vehicle wheels ] * automobiles * * AND * two-wheeled motor vehicles [ and bicycles; ] * component parts for the aforementioned goods
A chain tensioner (1) in which a plunger (12) is slidably assembled in a cylinder part (13) together with a return spring (11). The chain tensioner includes a stopper plate (22) in which a through hole (22a) for inserting the plunger (12) therethrough is formed, and a biasing member (24) for disabling movement of the plunger (12) by imparting a biasing force to the end of the stopper plate (22) so as to tilt the stopper plate (22). Hydraulic pressure of the hydraulic oil for an engine act on the stopper plate (22) whereby the inclination of the stopper plate (22) is reduced against the biasing force of the biasing member (24), and thereby, the movement of the plunger (12) can be permitted.
A chain tensioner (1) in which a plunger (12) is slidably assembled in a cylinder part (13) together with a return spring (11). The chain tensioner includes a stopper plate (22) provided with a through hole (22a) through which a plunger (12) is inserted, and a biasing member (24) for disabling the plunger (12) from its movement by imparting a biasing force to the end of the stopper plate (22) to tilt the stopper plate (22). The movement of the plunger (12) can be allowed by applying the hydraulic pressure of hydraulic oil for an engine onto the stopper plate (22) to reduce the inclination of the stopper plate (22) against the biasing force of the biasing member (24).
To provide a pin tip attachment structure that can engage a container with a bottom, such as a can or bottle, and convey the container without scratching it, a small diameter portion having a predetermined length is formed at a front end portion of a pin. A bushing is fitted in a lower end portion of a cylindrical hole of a pin tip having the cylindrical hole opened at a lower end side, and the bushing is vertically movably inserted onto the small diameter portion of the pin. A stopper portion for retaining the bushing is provided at a front end of the small diameter portion. A spring receiver portion is provided below the small diameter portion, and a coil spring is provided in a compressible manner between the spring receiver portion and the bushing or the lower end of the pin tip.
B65G 17/12 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriersEndless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element
In an inner link train (9) before a preload is applied thereto, the hole pitch of outer link plates (37) is set shorter than that of inner link plates (38, 39) (P17 < P18 < P19). After the preload is applied thereto, these link plates are so elastically deformed that the hole pitches of respective link plates are generally equal to each other. The pin hole portions of the outer link plates (37) are largely deformed, and the strength thereof is increased due to a residual stress. Despite the fact that the hole pitches of respective link plates are generally equal to each other after the preload is applied to the inner link train, the link plates on the lateral outer sides retain a high fatigue strength due to residual stress in the inner link train, and consequently, the wear resistance of a chain can be increased.
A method prevents a cylindrical body from buckling in externally curling edges of both side portions by pressing curling dies in an axial direction after molding the cylindrical body having a drop portion whose outer diameter is small and two side portions whose outer diameter is large by enlarging a cylindrical material made of aluminum alloy by electromagnetic molding. In curling the edges of the side portions, a buckling preventing die restrains an outer periphery of the drop portion of the cylindrical body. Because the buckling preventing die receives the axial compression force of the curling dies, it can prevent the cylindrical body from buckling and deforming. The buckling preventing die is what a split die disposed on the side of an outer periphery of the cylindrical material in the electromagnetic molding is used as.
B21F 43/00 - Making bands, e.g. bracelets, or wire
B23P 13/04 - Making metal objects by operations essentially involving machining but not covered by a single other subclass involving slicing of profiled material
A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
A grease-feeding through-hole (201) is formed in one outer link plate (31), and a grease-feeding means (21) is fitted to the through-hole. A grease-discharging through-hole (202, 203) is formed in an outer link plate (32) or an inner link plate (22) located on the side separated from the outer link plate (31) with a bearing section (A) in between them, and a grease-discharging means (22) is fitted to the through-hole. Lubricant placed from the grease-feeding means (21) is fed to the bearing section (A) through a gap (c) between a sealing means (6) and an outer link plate (3), and old lubricant in the bearing section (A) is discharged from the grease-discharging means (22) through the gap (c).
A tensioner device for applying appropriate tension to a timing chain for cam drive of an engine, the device applying tension by causing a plunger received in a cylinder (17) to project by an effect of hydraulic pressure etc. In the tensioner device, a substantially U-shape set pin (3) is used to set an initial position of the plunger (2). To set the initial position, a first leg (6), the shorter of the set pin legs, is inserted in a pin hole (9) formed in a housing (1) of the tensioner device, and a second leg (7), the longer leg, is engaged with a cutout (10) formed at a forward end corner of the plunger (2). Thus, the plunger (2) can be easily set to the initial position.
A seal chain in which a sealing member having a shape of a “plus” in section is steadily twisted (turned) and deformed into a shape of an “X” and whose abrasion resistance and flexing torque are improved. The sealing member is formed such that inner diametric side end faces of third and fourth lip portions extending in a transverse direction from a center base portion extend in a direction orthogonal to a radial direction and outer diametric side end faces thereof are formed as tapered faces such that width of the lip portion is widened from an edge face toward the base portion. A diagonal distance of the center base portion is within a range of 0.8 to 1.0 of a clearance between inner and outer link plates.
There is provided a double-face driving silent chain wherein the size of each inner link plate of an exterior driving link train to a back face thereof is set to be equal to or greater than the size of each link plate of an interior driving link train. Thereby, inner side planes of the back face of the inner link plate abut against the both side planes of an interior driving sprocket and guide and prevent the silent chain from engaging with the sprocket in twist. All the link plates, other than the inner link plates of the exterior driving link train, have the same shape when seen from the side and the outermost link plate of the interior driving link train is thin as compared to the other link plates.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Roller chains, silent chains, chains for machines, chains for bicycles and motorcycles, chains for automobiles and other vehicles, wheels, rims, and spokes.
