The purpose of the present invention is to make it possible to select a more suitable travel route in accordance with delay factors that occur when a railway vehicle travels on a railway track. This travel route selection system for a railway vehicle comprises: a storage unit that stores route information including information about railway tracks from a departure point to a destination point; an input unit to which delay factor information including delay factors when a railway vehicle travels on a railway track is input; and a control unit. The control unit searches for a plurality of candidate routes from the departure point to the destination point on the basis of the route information, calculates an evaluation value corresponding to the travel suitability for each of the plurality of candidate routes on the basis of the predicted journey time and delay factor information corresponding to the candidate route, and selects a travel route from among the plurality of candidate routes on the basis of the plurality of evaluation values calculated for each of the plurality of candidate routes.
The purpose of the present invention is to provide assistance so as to enable a schedule of maintenance work to be appropriately set in consideration of maintenance work conditions. This track maintenance assistance system assists in maintaining a track on which a railway vehicle travels. The system comprises: an input unit to which is inputted track state information indicating the state of the track, the track state information including any of displacement information pertaining to the track, information indicating the fineness of ballast, information indicating the state of sleepers, or fastening state information pertaining to fastening tools, and to which is inputted maintenance work condition information indicating maintenance work conditions for the track; and a processing unit that selects a plurality of proposed maintenance locations in the track on the basis of the track state information and outputs a maintenance work schedule for the plurality of selected proposed maintenance locations in accordance with a constraint condition obtained from the maintenance work condition information.
The purpose of the present invention is to monitor the condition of ballast with reference to the fine particle size of a mass placed as the ballast. This ballast condition monitoring system comprises: an input unit into which imaging data obtained by imaging the surface condition of ballast is input; and a processing unit that executes processing based on the imaging data. The processing unit calculates a statistic on the basis of the imaging data, and determines whether maintenance is necessary on the basis of the statistic.
E01B 35/00 - Applications of measuring apparatus or devices for track-building purposes
4.
Method of manufacturing structural object, identifier for manufacturing structural object, structural object manufacturing system, and machining program
A method of manufacturing a structural object includes: receiving a data set including workpiece three-dimensional measurement data and first specific information of first identifier three-dimensional measurement data associated with the workpiece three-dimensional measurement data; acquiring second identifier three-dimensional measurement data by measuring a three-dimensional shape of the identifier; reading out the workpiece three-dimensional measurement data from the data set including the first specific information that coincides with second specific information of the second identifier three-dimensional measurement data; and determining a machining plan based on the read workpiece three-dimensional measurement data.
B23Q 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
B23Q 15/22 - Control or regulation of position of tool or workpiece
5.
BALLAST-CONDITION MONITORING SYSTEM, BALLAST-CONDITION MONITORING DEVICE, AND BALLAST-CONDITION MONITORING METHOD
This ballast-condition monitoring system comprises: an input unit into which is input data indicating the surface condition of ballast in railroad track; a processing unit that calculates an index value indicating the degree to which the ballast has become granular, on the basis of the data which was input to the input unit and which indicates the surface condition of the ballast; and a maintenance necessity determination processing unit that determines, on the basis of the index value, whether maintenance is necessary.
A fastener monitoring device monitoring a fastener of a track on which a railroad car runs includes a processing unit calculating a total number of fastening of the fastener or a total number of detachment of the fastener per unit length of the track as an index value indicating a fastening state of the fastener in the track based on running data of the railroad car and fastening state data of the fastener during running of the railroad car.
A welding burn remover includes: a mover including a movable body to which a support of an electrolytic end effector is attached and at least one actuator that moves the movable body; and processing circuitry configured to control the actuator. The processing circuitry is configured to execute an electrolytic treatment in which the processing circuitry controls the actuator to slide an electrode on a welding burn portion of a welded workpiece through a short-circuit prevention cover while controlling a pump to supply an electrolytic solution to a boundary by an electrolytic solution feeder. The support of the electrolytic end effector includes: a base attached to the movable body of the mover; and a coupler connecting the electrode to the base such that the electrode is angularly displaceable relative to the base.
This vehicle set comprises: power bus lines (11, 111, 112) that are pulled through over a plurality of vehicles (1 to 6); and a circuit-breaking unit (30) that is disposed in a loft space (Sa) between the roof and the ceiling at a vehicle end portion (26a) of at least one intermediate vehicle (4) of the plurality of vehicles and breaks the current flowing through the power bus lines. The circuit-breaking unit includes: a first connector (42) that is electrically connected to the power bus lines disposed in the intermediate vehicle and has a first power terminal; a second connector (43) that is electrically connected to the power bus lines disposed in a vehicle adjacent to the intermediate vehicle among the plurality of vehicles and has a second power terminal; and a circuit breaker (41) that is provided between the first power terminal and the second power terminal.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B61G 5/10 - Couplings not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables for electric cables
A handrail for a railroad vehicle is disposed in a cabin of a vehicle body of the railroad vehicle. The handrail includes a handrail body whose inside serves as a filling space and a filler having fluidity and filling the filling space. The handrail body includes an opening to be used in supplying the filler to the filling space and a plug that opens and closes the opening.
A track condition monitoring device track condition monitors a state of a track on which a railroad car runs. The track condition monitoring device includes processing circuitry configured to acquire track displacement data which includes first data associated with second data, the first data indicating a position of the track displaced by a track displacement, and the second data indicating a longitudinal level of the track displacement at the position; and calculate an index value indicating the state of the track in an evaluation target section of the track based on the track displacement data, wherein the position is in the evaluation target section of the track.
In the present invention, when a side sliding door is in a fully closed state, a gap is formed between a first elastic member and a second elastic member, and a first protruding wall section and a second protruding wall section are positioned so as to overlap each other when seen from the thickness direction of the side sliding door. An elastic fin in the present invention includes an attachment section detachably attached to one of the first and second elastic members, and a fin section protruding from the attachment section. When the side sliding door is in the fully closed state, the fin section abuts the other of the first and second elastic members.
The present invention comprises: a galvanometer (21) for measuring values of electric current that flows from a lightning arrester (16) of a railway vehicle to a vehicle body (19) of the railway vehicle in an electric circuit (18) between the lightning arrester (16) and the vehicle body (19); a data storage instrument (22) for recording, as history data in a time series, the electric current values measured by the galvanometer (21); and a controller (23) for determining, from a time-series change of the history data recorded in the data storage instrument (22), that, when the average value of the electric current values in a specific unit time has exceeded a specific degradation threshold value, the lightning arrester (16) has degraded, and for outputting a specific degradation signal. Accordingly, degradation of the lightning arrester (16) provided to the railway vehicle is monitored.
This method for manufacturing a structure includes: receiving a data set that includes workpiece three-dimensional measurement data and first inherent information of first identifier three-dimensional measurement data associated with the workpiece three-dimensional measurement data; acquiring second identifier three-dimensional measurement data by measuring the three-dimensional shape of an identifier; reading the workpiece three-dimensional measurement data from the data set that includes the first inherent information matching with second inherent information of the second identifier three-dimensional measurement data; and determining a processing plan on the basis of the read workpiece three-dimensional measurement data.
G05B 19/404 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
B23Q 15/00 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work
A track displacement measurement device is a track displacement measurement device that measures displacement of the track on which a railroad car runs, and determines first displacement of the track by performing processing including an integration operation based on motion detection signal responsive to motion of the railroad car due to displacement of the track, determines second displacement of the track based on the rotational movement detection signal responsive to rotational movement of the railroad car, and determines combined displacement of the track based on the first displacement and the second displacement.
An object is to provide a railcar bodyshell whose deformation behavior at the time of collision is stable. The railcar bodyshell includes an anti-climber projecting from an end beam outward in a car longitudinal direction. The anti-climber includes a starting point portion that serves as a starting point of bending of the end beam when collision has occurred, and the end beam is bent by a collision load. The starting point portion is disposed at a portion corresponding to a position between a front end of an energy absorber and a corner post in a car width direction.
This handrail 10 is used for a railroad vehicle 1 and is provided in a passenger cabin 6 of a body 2 of the railroad vehicle 1, and the handrail 10 comprises a handrail body 11 of which the inside is a filling space 15, and a filler 18 that is fluid and that fills up the filling space 15. The handrail body 11 is provided with an opening 16 for putting the filler 18 into the filling space 15, and a plug 17 that opens and closes the opening 16.
A fixture of the present disclosure includes: a first fitting fixed to a first object; a second fitting fixed to a second object; and a positioning bolt fixing a position of the second fitting relative to the first fitting. The first fitting includes: a cylindrical portion extending in a z direction and including a first elongated hole on an outer peripheral surface of the cylindrical portion, the first elongated hole extending in a circumferential direction; a shaft that turns inside the cylindrical portion and includes a screw hole corresponding to the positioning bolt; and a first fixing portion to which the first object is fixed. The second fitting includes: a movable portion including a second elongated hole extending in an x direction and through which the positioning bolt penetrates; and a second fixing portion to which the second object is fixed.
The purpose of the present invention is to reduce the amount of data processing caused by individual management of fasteners. This fastener-monitoring device monitors fasteners on a track on which a railroad vehicle travels, the fastener-monitoring device comprising a processing unit that, on the basis of travel data for the railroad vehicle and fastening state data for the fasteners while the railroad vehicle is running, calculates the number of fasteners fastened or dropped per unit length of the track as an index value indicating the fastened state of the fasteners on the track.
The purpose of the present invention is to reduce variability between measurements of an index value that indicates the track state. This track state monitoring device, for monitoring the state of a track on which a railroad vehicle travels, is provided with a processing unit which calculates an index value indicating the state of the track; on the basis of track displacement data, which associates data about the track position resulting from track displacement with data about the track position in the longitudinal direction, the processing unit calculates, as the index value, a value that depends on the length of the track resulting from the aforementioned track displacement in an evaluation segment.
B61K 9/08 - Measuring installations for surveying permanent way
E01B 35/08 - Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction for levelling
A handrail of the present disclosure includes: a first partial handrail including an outer tube having at least one insertion hole on an outer peripheral surface of the outer tube; a second partial handrail including an inner tube having at least one opening hole on an outer peripheral surface of the inner tube, the inner tube being inserted into the outer tube; a cylindrical screw seat disposed inside the inner tube of the second partial handrail so as to be turnable in a circumferential direction and having at least one screw hole on an outer peripheral surface of the cylindrical screw seat; and at least one connecting bolt that penetrates the insertion hole and the opening hole and is fastened to the screw hole to couple the first partial handrail and the second partial handrail.
A handhold device of a railcar includes: a frame arranged along a side edge of a specific door opening and connected to a car interior side of a side carshell; a turning mechanism provided at the frame and configured to be turnable about a turning axis extending in an upper-lower direction; and a handle including a base portion connected to the frame through the turning mechanism and a holding portion projecting from the base portion in a direction intersecting with the turning axis. The handle is angularly displaceable about the turning axis between a deployed position where the holding portion is exposed to the specific door opening when viewed from a lateral side of the car body and a storage position where the holding portion is hidden by the side carshell when viewed from the lateral side of the car body.
A railcar air conditioning duct according to one aspect which guides air fed from an air conditioner mounted on a railcar. The railcar includes: a duct wall forming an air flow passage which guides air in a car longitudinal direction; and a plurality of through holes lined up in the car longitudinal direction, the through holes being open at the duct wall as air outlet ports through which the air in the air flow passage is blown from the air flow passage toward a passenger room. A ratio of an opening area of one of the through holes to an area of one of a plurality of partial regions formed by dividing, in the car longitudinal direction, an inner surface of a lower wall portion such that in plan view, the regions contain the respective through holes falls within a range of 2.0% or more and 7.5% or less.
A RFID tag unit is attached to a wheelset of a railcar and includes a RFID tag and an attaching member on which the RFID tag is mounted and which is attached to the wheelset. At least a portion of the attaching member which portion faces the RFID tag is made of a non-metal material. The attaching member is interposed between the RFID tag and the wheelset.
A support structure of a railcar bogie and a method of supporting a railcar bogie each of which is capable of easily managing axial force acting on a fastener between a pressing member and a main body sandwiching a shaft body. In the support structure of the railcar bogie, the pressing member and the main body are fastened to each other such that a clearance is formed between the pressing member and the main body. The support structure is configured such that a car upper-lower direction end portion, located around a first recess of the main body, of the main body and a car upper-lower direction end portion of the pressing member are substantially flush with each other.
A railcar bogie includes: a cross beam extending in a car width direction; a first traction motor supported by a first car longitudinal direction portion of the cross beam; a second traction motor supported by a second car longitudinal direction portion of the cross beam; and a coupling member arranged under the cross beam and between the first traction motor and the second traction motor and coupling the first traction motor and the second traction motor to each other.
An elastic bushing includes a recess at a portion of an outer peripheral surface of the elastic bushing which portion is located at an inner side in a car longitudinal direction, the recess being recessed outward in the car longitudinal direction. A tubular portion of an axle beam includes a convex stopper portion protruding outward in the car longitudinal direction from a part of an inner peripheral surface of the tubular portion which part is located at the inner side in the car longitudinal direction, the stopper portion being inserted into the recess with a gap between the stopper portion and a bottom surface of the recess. A thickness of the elastic bushing at the recess in a radial direction is equal to or less than half a thickness of a portion of the elastic bushing in the radial direction which portion is located adjacent to the recess.
F16F 1/387 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin comprising means for modifying the rigidity in particular directions
A bogie frame includes a cross beam extending in a car width direction and including a car width direction middle portion at which a center pin arrangement space is formed. The cross beam includes a pair of pipe members extending in the car width direction and lined up so as to be located away from each other in a car longitudinal direction, and air spring seats provided at upper surfaces of car width direction end portions of the pair of pipe members. At least one of the pair of pipe members includes a curved portion at a car width direction middle portion thereof, the curved portion projecting outward in the car longitudinal direction such that a clearance between the pair of pipe members increases. The center pin arrangement space is formed between the pair of pipe members by the curved portion.
A tag configured to detect loosening of a fastening member fastened to a fastened part of an apparatus includes: a base sheet including a fastening member attached portion and a fastened part attached portion, the fastening member attached portion being attached to the fastening member, the fastened part attached portion being attached to the fastened part; a RFID chip mounted on the base sheet; an antenna circuit mounted on the base sheet while being connected to the RFID chip; and an electric conductor mounted on the base sheet while being connected to the RFID chip, the electric conductor being configured such that an electric property of the electric conductor changes when the fastening member is displaced relative to the fastened part attached portion.
F16B 31/02 - Screwed connections specially modified in view of tensile loadBreak-bolts for indicating or limiting tensile load
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
A railcar bogie includes a bogie frame including a cross beam and supports, the supports disposed at respective car width direction end portions of the cross beam. There are a plurality of axle boxes to accommodate a plurality of bearings supporting a pair of axles, a plate spring extending in a car longitudinal direction and supported by a pair of the axle boxes which are away from each other in the car longitudinal direction among the plurality of axle boxes. The plate spring supports the cross beam while being pressed by the corresponding support from above such that the pressing member is separable from the plate spring. Elastic walls are at both respective sides of the supports in the car longitudinal direction and sandwiched between a lower surface of the bogie frame and an upper surface of the plate spring so as to be compressed.
B61F 5/00 - Constructional details of bogiesConnections between bogies and vehicle underframesArrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
30.
Rubbing plate of side bearer of railcar bogie and side bearer
A rubbing plate of a side bearer of a railcar bogie is a rubbing plate of a side bearer provided at the railcar bogie so as to slidably contact a slide member arranged above or under the side bearer. The rubbing plate includes a recess-projection provided on an opposing surface of the rubbing plate, the opposing surface being opposed to a sliding surface of the slide member.
A double skin structure of a railcar bodyshell includes: a harmonica type structural portion in which a closed space is quadrangular when viewed from a car longitudinal direction; and a truss type structural portion which is located adjacent to the harmonica type structural portion and in which a closed space is triangular when viewed from the car longitudinal direction. A thickness reduced portion is formed in at least one of a region between a car width direction middle portion of a roof bodyshell and a car body circumferential direction middle portion of a cantrail. The thickness reduced portion having a bodyshell thickness that is made small by arranging an inner wall of the thickness reduced portion at a car exterior side of the inner wall of a region adjacent to the region in which the thickness reduced portion is formed.
B61D 17/04 - Construction details of vehicle bodies with bodies of metalConstruction details of vehicle bodies with composite, e.g. metal and wood, body structures
B61D 17/02 - Construction details of vehicle bodies reducing air resistance by modifying contour
A car monitoring system includes: a sub-system to execute a predetermined function by controlling at least one instrument mounted on a railcar; and a monitoring device to monitor an operating state of the sub-system. The sub-system includes: a sub-system controller to create status data containing pieces of event information based on a signal output from the instrument and periodically transmit the status data to the monitoring device, the information informing the monitoring device of a change in state of the instrument; and a first memory to store a first event parameter file defines a data structure of an event region of the status data, the event region being a region wherein the information are stored. When the first parameter file is changed, and the sub-system controller creates the status data, the controller reconstructs the data structure of the region and resets the information in accordance with the reconstructed data structure.
A railcar floor structure includes: a plurality of floor panels arranged over an entire length of a passenger room of a railcar in a car longitudinal direction and including respective electric heaters; a wiring duct extending in the car longitudinal direction and arranged between a side bodyshell and car width direction end portions of the floor panels; an electricity supply cable arranged at the wiring duct, electric power being supplied to the electric heaters through the electricity supply cable; and a wire insertion opening formed at a side wall portion of the wiring duct, the side wall portion being located close to the floor panels and extending along the car longitudinal direction, the electricity supply cable passing through the wire insertion opening.
A method of assembling a railcar bogie includes: a positioning step of locking a wheelbase fixing jig to a pair of axle box devices to position the pair of axle box devices such that a wheelbase between a pair of wheelsets supported by the respective axle box devices becomes a predetermined designed value, the pair of axle box devices being arranged away from each other in a car longitudinal direction, the wheelbase fixing jig extending in the car longitudinal direction; a plate spring arranging step of making the pair of axle box devices support a plate spring extending in the car longitudinal direction; and a bogie frame arranging step of making a longitudinal direction middle portion of the plate spring support a bogie frame and coupling the bogie frame to the pair of axle box devices.
A flexible gear coupling includes two external gears and two internal gears meshing with the respective two external gears. A tooth root crowning radius of each external gear is smaller than a tooth tip crowning radius of the external gear. The external gear is formed such that a reference tooth height that is a tooth height at a tooth width direction middle position is smaller than an end tooth height that is a tooth height at a tooth width direction end position. A ratio of the end tooth height to the reference tooth height is set to 1.21 or more, and/or a ratio Rc/Rb of the tooth root crowning radius to the tooth tip crowning radius is set to 0.37 or less.
B61D 3/18 - Wagons or vans adapted for carrying special loads for vehicles
B61C 9/50 - Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
B61F 3/04 - Types of bogies with more than one axle with driven axles or wheels
B61F 5/38 - Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
F16H 1/10 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes one of the members being internally toothed
F16H 1/26 - Special means compensating for misalignment of axes
A bolster beam of a railcar bogie includes a bolster beam main body in which a pair of auxiliary air chambers respectively communicating with a pair of air springs are formed; and a stopper structure projecting upward from a car width direction middle portion of the bolster beam main body. An upper wall of the bolster beam main body includes a middle upper wall portion at which the stopper structure portion is provided; and a pair of outside upper wall portions adjacently located at both respective car width direction sides of the middle upper wall portion and joined to the middle upper wall portion. The pair of outside upper wall portions include respective upward bent portions that are located at a car width direction middle side and bent upward toward the stopper structure portion.
A railcar bogie includes: a protection target member of the railcar bogie; and a protective film including an adhesive surface stuck to the protection target member. The protective film is configured such that an impact absorbing layer and a flame-retardant layer are laminated in this order from the protection target member side. The impact absorbing layer is thicker than the flame-retardant layer.
A heating floor panel unit of a railcar includes: a heater-equipped floor panel; a first flange horizontally projecting from one end of the floor panel in a car longitudinal direction and fixed to a carbody by a fastening member; and a second flange horizontally projecting from the other end of the floor panel in the car longitudinal direction and fixed to the carbody by a fastening member. The first flange and the second flange are located at such a height that upper ends of the fastening members are located below an upper surface of the heater-equipped floor panel. The first flange, as viewed from above, is located in such a manner that a position of the first flange in a direction orthogonal to a direction in which the first flange projects does not overlap a position of the second flange in the orthogonal direction.
An axle box suspension of a railcar includes: a coupler extending from the axle box in a car longitudinal direction and including a tubular portion at a tip end portion of the coupler, the tubular portion opens toward both sides in a car width direction, the coupler coupling the axle box and a bogie frame; a core rod inserted into an internal space of the tubular portion, a pair of protruding portions provided at both respective sides of the core rod in the car width direction; an elastic bushing interposed between the tubular portion and the core rod; a pair of receiving seats at the bogie frame, including a pair of recess portions and a pair of groove portions, a pair of lids supporting the pair of protruding portions fitted into the pair of groove portions, and fasteners fixing the lids to the receiving seats.
An axle box suspension includes: a coupler extending from an axle box in a car longitudinal direction and including a tubular portion at an end portion of the coupler, the tubular portion being open toward both sides in a car width direction; a core rod inserted into an internal space of the tubular portion, a pair of protruding portions being provided at both sides of the core rod in the car width direction; an elastic body interposed between the tubular portion and the core rod; a pair of receiving seats provided at the bogie frame and including a pair of groove portions which are open toward the car width direction and an upper side; a pair of lids pressing, from above, the pair of protruding portions fitted into the pair of groove portions from above; and fasteners fixing the lids to the receiving seats.
An impact transmitting structure includes: a first member provided at an end portion of a first car; and a second member provided at an end portion of a second car. One of the first member and the second member is a convex member. The other of the first member and the second member is a concave member. An opposing surface of the convex member which surface is located close to the concave member has a substantially V shape that is convex in a direction toward the concave member. An opposing surface of the concave member which surface is located close to the convex member has a substantially V shape that is concave in a direction away from the convex member. A tip end angle of the convex member is smaller than an opening angle of the concave member.
An air flow regulator for a railway vehicle is configured so that the rattling of bars can be prevented without using welding, an affixation member, etc. An intake grill is provided at an intake opening for sucking air from an interior of a railway vehicle. The intake grill includes a frame, bars, and a reinforcement capable of deforming the bars. The frame defines an outer edge of the intake opening. The bars are plate-shaped members spanned between portions of the frame to connect the portions to each other. The reinforcement elastically deforms the bars to generate reaction force therein.
An ultrasonic flaw detector for a composite material constituted by a plurality of materials which are different in physical properties from one another includes: a section specifier configured to specify first and second sections of an RF signal of a reflected wave of an ultrasonic wave with which the composite material is irradiated, a material reflected wave being possibly generated in the first section, an interface reflected wave being possibly generated in the second section; a material flaw determiner configured to determine whether or not a value of the RF signal exceeds a positive first threshold in the first section; and an interface flaw determiner configured to determine whether or not the value of the RF signal falls below a negative second threshold in the second section.
Provided is a railway vehicle air-conditioning duct that is capable of achieving a more uniform in-cabin temperature distribution through more appropriate volume distribution of conditioned air. A railway vehicle air-conditioning duct that supplies conditioned air generated by an air conditioner into a cabin and that extends in a vehicle length direction at a vehicle ceiling part has: a main duct; a chamber duct; a branch duct; and a guide part. The guide part is lower in height than the main duct, extends to a branch duct from the main duct or a partition wall in the main duct in a vehicle width direction, and supplies to the branch duct a portion of the conditioned air supplied to the main duct.
A railway vehicle stopper includes a first rigid member, a second rigid member, a rubber elastic body, a third rigid member, an abutting member, and a communication passage. The second rigid member is arranged opposed to the truck frame or the vehicle body with an interval. The rubber elastic body elastically couples the supporting portion of the first rigid member to the second rigid member. The third rigid member is mounted inside the supporting portion of the first rigid member to form an air chamber with the second rigid member. The abutting member is coupled to at least one of mutually opposed surfaces of the second rigid member and the third rigid member. The communication passage is provided on one or both of the first rigid member and the third rigid member to communicate the air chamber with an outside.
A method of assembling a railcar bogie includes: a plate spring arranging step of making a pair of axle boxes support a plate spring extending in a car longitudinal direction, the axle boxes being arranged away from each other in the car longitudinal direction; a bogie frame arranging step of placing a bogie frame directly or indirectly on a longitudinal direction middle portion of the plate spring from above, the bogie frame including a side wall on which an opening is formed, the side wall covering the plate spring from an outside in a car width direction; and a measuring step of measuring a positional deviation between the plate spring and the bogie frame in the car longitudinal direction through the opening.
B61F 5/30 - Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
B61F 5/00 - Constructional details of bogiesConnections between bogies and vehicle underframesArrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
47.
Wire supporting structure supporting electric wire extending between bogie and carbody in railcar and method of connecting electric wire
A wire supporting structure supporting an electric wire extending between a bogie and a carbody in a railcar includes: a support supported by the carbody and including a fitted portion; a carbody-side coupling device supported by the carbody; an electric wire connected to an electrical apparatus of the bogie; an electric wire-side coupling device provided at a tip end of the electric wire and connected to the carbody-side coupling device; and a bracket connected to a part of the electric wire, the part being located close to the electric wire-side coupling device, the bracket including a fitting portion fitted to the fitted portion of the support, the bracket being supported by the support with the fitting portion fitted in the fitted portion.
A bone structure of a railcar includes: a pair of first lateral bones arranged at an inner side of a wainscot panel in a car width direction and extending in a car longitudinal direction, the first lateral bones being joined to the wainscot panel; and a side post arranged at an inner side of a pier panel in the car width direction and extending in a car upper-lower direction, the side post intersecting with the first lateral bones, wherein the side post includes: at least one first flange portion joined to the pier panel; a pair of cutout portions located at positions corresponding to the wainscot panel, the first lateral bones passing through the respective cutout portions in the car longitudinal direction; and at least one second flange portion arranged between the first lateral bones and joined to the wainscot panel.
B61D 17/04 - Construction details of vehicle bodies with bodies of metalConstruction details of vehicle bodies with composite, e.g. metal and wood, body structures
A bearing temperature detector of a railcar bogie includes: a temperature sensor unit passing through an opening of an axle box accommodating a bearing supporting an axle and configured to detect a temperature of an outer ring of the bearing; an elastic body configured to bias the temperature sensor unit toward the outer ring; and a temperature sensor unit support seat including a substrate portion to which the temperature sensor unit is attached via the elastic body, the temperature sensor unit support seat being detachably fixed to the axle box from an outside of the axle box.
B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
G01K 1/143 - SupportsFastening devicesArrangements for mounting thermometers in particular locations for measuring surface temperatures
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
F16C 19/24 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
F16C 19/00 - Bearings with rolling contact, for exclusively rotary movement
A wheel load adjusting apparatus used in a railcar, and the railcar includes: first and second air springs arranged between a carbody and a first bogie so as to be spaced apart from each other in a car width direction; third and fourth air springs arranged between the carbody and a second bogie so as to be spaced apart from each other in the car width direction; and first to fourth automatic level controlling valves provided upstream of the first four air springs and configured to adjust heights of the four air springs to maintain constant height of the air springs, wherein when the railcar passes through a curve, the wheel load adjusting apparatus limits an air supply/air discharge operation of at least one of the four automatic level controlling valves to suppress an increase in a pressure difference between at least two of the four air springs.
B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
B60G 21/06 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
B60G 99/00 - Subject matter not provided for in other groups of this subclass
There is provided an underfloor duct which enables inspection of electric equipment to be easily performed, has a simple structure, and hardly allows water to intrude into a duct passage.
An underfloor duct according to an aspect of the present invention is an underfloor duct, provided under a floor of a railcar, for storing electric equipment including a cable. The underfloor duct includes: a box having a frame that projects upward, and an opening that opens downward; and a lid that closes the opening and forms a duct passage between the lid and the box. An end portion of the box is located outside an end portion of the lid in a car width direction.
A connecting hanger bolt according to an aspect of the present invention is a hanger bolt which is inserted into a hanging groove rail having an opening narrower than the outer diameter of a bolt head and extending in a hanging groove rail longitudinal direction and from which a device is hangable. The connecting hanger bolt includes: a plurality of bolts which move in the hanging groove rail longitudinal direction in the hanging groove rail and whose shaft portions pass through the opening; and a connecting member which connects the plurality of bolts to each other, and keeps an interval in the hanging groove rail longitudinal direction between the plurality of bolts adjacent to each other.
B61D 17/04 - Construction details of vehicle bodies with bodies of metalConstruction details of vehicle bodies with composite, e.g. metal and wood, body structures
F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
B62D 27/06 - Connections between superstructure sub-units readily releasable
There is provided a horn device for a railcar capable of delivering horn sound to a long distance in a traveling direction and being less likely to spread sound in a car width direction. A horn device for a railcar according to one aspect of the present invention includes: a whistle portion that is supplied with compressed air to make horn sound in a traveling direction; a duct located in the traveling direction of the whistle portion and having an opening portion at an end portion in the traveling direction; and at least one partition plate that is disposed perpendicularly to a car width direction, extends in a car longitudinal direction, and divides the interior of the duct.
An air spring includes an outer cylindrical member, an inner cylindrical member, a diaphragm, the diaphragm providing an internal space between the outer cylindrical member and the inner cylindrical member, a stopper assembly arranged in the internal space as being pivotable over the inner cylindrical member, a handle for pivoting the stopper assembly over the inner cylindrical member, a guide member attached to the handle as rising from the handle, a positioning member attached by insertion in a guide hole in the guide member for positioning of the handle, a positioning hole provided in the inner cylindrical member which can receive the positioning member, and a holding mechanism in the inner cylindrical member. A position of the stopper assembly with respect to the inner cylindrical member is determined by inserting the positioning member in the positioning hole.
F16F 9/05 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
B61F 5/10 - Bolster supports or mountings incorporating fluid springs
F16F 9/44 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction
F16B 1/02 - Means for securing elements of mechanisms after operation
F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
A railcar axle box includes an axle box main body accommodating a bearing supporting an axle. The axle box main body includes: an inner surface defining an accommodating space accommodating the bearing; a first side surface provided at an outer side of the inner surface and at one car width direction side of a car width direction center of the accommodating space; and a second side surface provided at an outer side of the inner surface and at the other car width direction side of the center. A shortest distance between the first side surface and the car width direction center of the accommodating space and a shortest distance between the second side surface and the center are equal to each other in a car width direction.
B61F 15/06 - Axle-boxes with journal bearings for cars
B61F 5/30 - Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
B61F 5/00 - Constructional details of bogiesConnections between bogies and vehicle underframesArrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
B61F 19/00 - Wheel guardsBumpersObstruction removers or the like
B23P 15/20 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass railroad requirements, e.g. buffers
An air spring includes an outer cylindrical member, an inner cylindrical member combined with the outer cylindrical member, a diaphragm coupling the outer cylindrical member and the inner cylindrical member to each other, the diaphragm providing an internal space between the outer cylindrical member and the inner cylindrical member, a stopper assembly arranged in the internal space as being pivotable over the inner cylindrical member, the stopper assembly allowing suppression of movement of the outer cylindrical member toward the inner cylindrical member more than necessary, a pivoting mechanism pivoting the stopper assembly over the inner cylindrical member, and a space portion provided between the stopper assembly and the inner cylindrical member, the space portion allowing lowering in resistance in pivot of the stopper assembly.
F16F 9/05 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
B61F 5/10 - Bolster supports or mountings incorporating fluid springs
F16F 9/44 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction
An air spring includes an outer cylindrical member, an inner cylindrical member combined with the outer cylindrical member, a diaphragm coupling the outer cylindrical member and the inner cylindrical member to each other, the diaphragm providing an internal space between the outer cylindrical member and the inner cylindrical member, a first element located on a side of the internal space in at least one of the outer cylindrical member and the inner cylindrical member and defining a part of the internal space, a second element adjacent to the first element, the second element defining a part of the internal space, and a cover layer covering a boundary portion between the first element and the second element.
F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
B61F 5/10 - Bolster supports or mountings incorporating fluid springs
F16F 9/05 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
F16F 9/44 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction
Provided is a bearing monitoring device of a railcar, the railcar being constituted by coupling a plurality of cars including carbodies and bogies, the bearing monitoring device including: bearing temperature sensors provided at the respective bogies and configured to directly or indirectly detect temperatures of bearings of the bogies; at least one state sensor provided at at least one of the carbodies of the plurality of cars and configured to be used for calculating loads or rotating speeds of the bearings; and a storage unit provided at at least one of the carbodies of the plurality of cars and configured to store data pieces of signals detected by the bearing temperature sensors and the state sensor.
B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
There is provided a configuration that can precisely detect abrasion of brake shoes of a railway vehicle. A brake shoe abrasion detection unit includes: at least one abrasion detection RF tag that is attached at a position of an abrasion limit of a brake shoe of a railway vehicle tread brake or a position closer to a braking surface than the abrasion limit; and a reference RF tag that is attached at a position beyond the abrasion limit of the brake shoe.
B61H 1/00 - Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
F16D 65/09 - Pivots or supporting members therefor
B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
F16D 49/00 - Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
60.
Brake shoe abrasion detection system of railway vehicle
There is provided a configuration in which an association between a location of each brake shoe of a railway vehicle and each abrasion detection tag is easily learned, and system implementation and management are simplified. A brake shoe abrasion detection system of a railway vehicle includes a computer that receives data of a signal read by a reader from at least one abrasion detection RF tag attached to each of a plurality of brake shoes of the railway vehicle passing the reader. The computer determines an association between a plurality of the signals and the plurality of brake shoes based on an order that the reader reads the plurality of signals from a plurality of the abrasion detection RF tags attached to the plurality of brake shoes, respectively.
B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
B61H 15/00 - Wear-compensating mechanisms, e.g. slack adjusters
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
B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
B60T 8/17 - Using electrical or electronic regulation means to control braking
B61L 25/04 - Indicating or recording train identities
F16D 66/00 - Arrangements for monitoring working conditions of brakes, e.g. wear or temperature
B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
Provided is a bearing monitoring device of a railcar, the bearing monitoring device being configured to monitor a bearing of a bogie supporting a carbody, the bearing monitoring device including: a receiving unit configured to receive a data piece of a temperature of the bearing and at least one of a data piece of a load of the bearing and a data piece of a rotating speed of the bearing; and a diagnostic unit configured to, when a monitoring value exceeds a variable threshold, determine that an abnormality of the bearing has occurred, the monitoring value being at least one of a temperature value and a temperature increase rate, the at least one of the temperature value and the temperature increase rate being obtained from the data piece of the temperature of the bearing received by the receiving unit, wherein when at least one of a value of the data piece of the load and a value of the data piece of the rotating speed decreases, the diagnostic unit lowers the variable threshold.
B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
G01K 1/02 - Means for indicating or recording specially adapted for thermometers
G01K 13/08 - Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
G01N 25/20 - Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
A railcar bogie includes: a cross beam supporting a carbody of a railcar; an axle box including a bearing accommodating portion accommodating a bearing rotatably supporting a wheelset; a plate spring extending in a car longitudinal direction while supporting a car width direction end portion of the cross beam; and a receiving member provided above the axle box and supporting a car longitudinal direction end portion of the plate spring, an attachment hole being formed at a car longitudinal direction outside portion of the receiving member, a lifting fitting used to lift the bogie being attached to the attachment hole.
B61F 5/30 - Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
B61F 5/00 - Constructional details of bogiesConnections between bogies and vehicle underframesArrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
A railcar steering bogie includes a bogie frame, a wheelset, an axle box suspension, a steering mechanism configured to steer the wheelset, a brake unit, and a brake unit support link. The brake unit includes: a main body frame; a brake shoe supported by the main body frame and pressed against a wheel tread of the wheel during braking. The brake unit support link couples the axle box suspension and the brake unit and transmits displacement of the axle box in a car longitudinal direction to the brake unit at least during steering performed by the steering mechanism. The brake unit support link restricts the brake unit from being displaced outward in a car width direction by a predetermined distance or more during the braking. At least one of a side surface of the brake unit support link and a side surface of the brake unit includes a sliding surface.
B61F 5/46 - Adjustment controlled by a sliding axle under the same vehicle underframe
B61H 1/00 - Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
B61F 5/44 - Adjustment controlled by movements of vehicle body
F16D 65/06 - Bands, shoes or padsPivots or supporting members therefor for externally-engaging brakes
A state monitoring device for use in a train set constituted by coupling cars each including a carbody and a pair of bogies arranged at both respective longitudinal direction end portions of the carbody and supporting the carbody includes: sensors provided at the respective bogies and configured to detect state information of devices provided at the bogies; wireless transmitters provided at the respective bogies and configured to wirelessly transmit sensor signals containing the detected state information; and at least one wireless receiver configured to receive the sensor signals wirelessly transmitted from the wireless transmitters.
B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B61F 5/24 - Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
B61L 25/04 - Indicating or recording train identities
65.
Axle box suspension of railcar bogie and method of producing the same
A railcar bogie axle box suspension axle beam includes an end portion d at a tip end, a tubular portion at the end portion and being open at both car width direction sides. The tubular portion includes: a first semi-tubular portion integrally formed with a main body portion; a second semi-tubular portion brought into contact with the first semi-tubular portion from one side in the car longitudinal direction; and a bolt fastening the second semi-tubular portion to the first. The first semi-tubular portion includes: a flat opposing surface contacting the second semi-tubular portion; and a hole into which the bolt is inserted. The second semi-tubular portion includes: a flat opposing surface contacting with the first semi-tubular portion surface; a flat machining reference surface formed at an opposite side of the opposing surface; and a hole extending in a direction perpendicular to the opposing surface, the bolt inserted into the hole.
A railcar bogie includes a cross beam, an axle box, a supporting member, a plate spring, and an axle beam. The axle box accommodates a bearing rotatably supporting a wheelset. The supporting member is provided at an upper portion of the axle box. The plate spring supports a car width direction end portion of the cross beam and extends in a car longitudinal direction, and the plate spring includes a car longitudinal direction end portion supported by the supporting member. The axle beam couples the axle box and the cross beam in the car longitudinal direction and is opposed to the plate spring in an upward/downward direction. An installation seat is provided at an upper surface of the axle beam and includes an installation surface on which a pushing-up device configured to push up a lower surface of the plate spring can be placed.
A railcar bogie includes a wheelset, a bearing rotatably supporting the wheelset, an axle box, and an obstacle deflector. The wheelset includes: an axle and a pair of wheels provided at both car width direction sides of the axle. The axle box includes: an upper axle box element covering the bearing from above; and a lower axle box element fixed to the upper axle box element and covering the bearing from below. The obstacle deflector includes an obstacle deflecting portion and a coupling portion. The obstacle deflecting portion is arranged at one side of the wheel in a car longitudinal direction and, when viewed from the one side in the car longitudinal direction, overlaps the wheel. The coupling portion couples the obstacle deflecting portion to the axle box. The coupling portion of the obstacle deflector is fixed to a receiving seat provided at the upper axle box element.
A wheel load adjusting tool includes at least one liner interposed between an axle box and a spring directly or indirectly supported by the axle box, the liner including: a pressure receiving portion configured to receive a load applied from the spring; a first engaging portion formed by recessing a part of an outer edge of the pressure receiving portion inward, the first engaging portion engaging with a first engaged portion to restrict the liner from being displaced with respect to the axle box, the first engaged portion projecting from an upper surface of the axle box; and a second engaging portion projecting outward from the pressure receiving portion at an opposite side of the first engaging portion, the second engaging portion engaging with a second engaged portion of the axle box to restrict the liner from being displaced and rotated with respect to the axle box.
A carbody of a railcar includes an underframe, a side bodyshell, and a roof bodyshell. At least one of the underframe, the side bodyshell, and the roof bodyshell includes: an outer plate portion facing a car outside; and a reinforced portion joined to an inside surface of the outer plate portion and forming at least one internal space between the reinforced portion and the outer plate portion. At least one sound absorbing hole communicating with the internal space is formed on the outer plate portion.
A railcar steering bogie includes: a bogie frame including a cross beam; pair of axles; axle boxes accommodating bearings; axle box suspensions each including a coupling member coupling the corresponding axle box and bogie frame while allowing relative displacement in a car longitudinal direction; plate spring extending in the car longitudinal direction and including car longitudinal direction end portions extending obliquely upward along the car longitudinal direction and supported above the respective axle boxes and a car longitudinal direction middle portion unfixedly arranged under the cross beam; support seats including respective inclined upper surfaces and supporting the both respective longitudinal direction end portions of the plate spring; and gap bodies each provided between an upper surface of the corresponding axle box suspension and a lower surface of the corresponding support seat and configured to allow displacement of the axle box suspension and the support seat in the car longitudinal direction.
A railcar control device controls a plurality of traction motors included in a train set. The railcar control device includes: a control command input portion to which a control command is input; and a torque command determining portion configured to determine torque commands with respect to a plurality of traction motors such that when a required torque based on the control command input to the control command input portion is less than a maximum value, a torque of a specific traction motor among the plurality of traction motors is made lower than a torque of a different traction motor other than the specific traction motor.
B60L 15/38 - Control or regulation of multiple-unit electrically-propelled vehicles with automatic control
B60L 50/16 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
B60L 15/20 - 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 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
A railcar steering bogie includes: a bogie frame supporting a bolster such that the bolster is swingable relative to the bogie frame about a vertical axis; two wheelsets each including an axle and a pair of wheels; and a steering mechanism configured to steer at least one of the two wheelsets in accordance with the swinging of the bolster relative to the bogie frame. The steering mechanism includes: a steering lever configured to turn relative to the bogie frame about a fulcrum axis; a coupling link coupling the bolster and the steering lever and configured to operate in conjunction with the swinging of the bolster relative to the bogie frame; and a steering link coupled to the steering lever and configured to steer the wheelset in conjunction with the turning of the steering lever. The steering link is coupled to the steering lever by a pin member.
A railcar steering bogie includes: a bogie frame supporting a bolster such that the bolster is swingable relative to bogie frame about a vertical axis; two wheelsets; axle box suspensions including respective axle beams coupling corresponding axle boxes to bogie frame, the axle boxes accommodating respective bearings supporting corresponding axles; and a steering mechanism steering at least one of the two wheelsets in accordance with the bolster's swinging relative to the bogie frame. The steering mechanism includes: a steering lever configured to turn relative to the bogie frame about fulcrum axis; a coupling link coupling the bolster and steering lever and configured to operate in conjunction with the bolster's swinging relative to the bogie frame; and at least one steering link coupling steering lever and axle beam and configured to steer the corresponding wheelset by displacing corresponding axle box through the corresponding axle beam in conjunction with steering lever's turning.
An axle box suspension includes: an axle beam including an axle beam main body portion extending from the axle box in a car longitudinal direction and a pin portion projecting from a tip end of the axle beam main body portion in the car longitudinal direction; a tubular elastic bushing including an inner tube portion, an outer tube portion, and an elastic portion interposed between the inner tube portion and the outer tube portion, the inner tube portion being fitted to the pin portion; an adapter attached to the outer tube portion and coupling the axle beam and the bogie frame; and a first stopper attached to the pin portion and configured to, when the axle box is displaced relative to the bogie frame toward one side in the car longitudinal direction by a predetermined distance, contact the adapter to restrict displacement of the axle box.
B61F 5/30 - Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
B61F 5/44 - Adjustment controlled by movements of vehicle body
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B61F 5/46 - Adjustment controlled by a sliding axle under the same vehicle underframe
F16F 1/387 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin comprising means for modifying the rigidity in particular directions
An air spring according to the present disclosure includes: an inner cylindrical member; an outer cylindrical member provided on the inner cylindrical member; a diaphragm coupled with the outer cylindrical member and the inner cylindrical member; and a stopper provided rotatably with respect to a circumferential direction of the inner cylindrical member. The stopper has a raised portion raised towards the outer cylindrical member and moving on the inner cylindrical member in the circumferential direction. The outer cylindrical member has a plurality of raised portions raised toward the inner cylindrical member. The plurality of raised portions of the outer cylindrical member are different in height. At least one of the outer cylindrical member's raised portion and the stopper's raised portion is restorable against circumferential deformation.
A main tank storing pressurized air supplied to a pair of air springs; an air supply passage through which the pressurized air flows between the main tank and each of the pair of air springs; a plurality of compressors configured to supply the pressurized air to the main tank; an air discharge passage which is connected to the pair of air springs and through which discharged pressurized air discharged from the air springs flows; and an exhaust tank connected to the air discharge passage and storing the discharged pressurized air discharged from the air springs, the plurality of compressors including at least one first compressor configured to pressurize air introduced from an atmosphere and at least one second compressor configured to operate auxiliarily for an operation of the first compressor and pressurize the discharged pressurized air introduced from the exhaust tank.
A wireless communication function-equipped temperature sensor unit includes: a temperature sensor; a wireless communication board including a conversion substrate including a conversion circuit configured to convert an analog temperature signal into a digital temperature signal, the analog temperature signal being output from the temperature sensor, and a wireless communication module mounted on the conversion substrate and configured to transmit the digital temperature signal as a wireless signal.
B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
An air spring includes: an outer cylindrical member; an inner cylindrical member; a diaphragm which couples the outer and inner cylindrical members and forms an internal space; a stopper assembly disposed in the internal space; and a pivoting mechanism which causes this stopper assembly to pivot on the inner cylindrical member. The stopper assembly has a stopper portion protruding towards the outer cylindrical member, and the outer cylindrical member has as a set four or more protrusion portions provided at a position to face the stopper portion and protruding toward the inner cylindrical member. Each of the protrusion portions belonging to the set is disposed successively and also different in height. Each of the protrusion portions belonging to the set is arranged without having a protrusion portion belonging to the set smallest in height adjacent to a protrusion portion belonging to the set largest in height.
B61F 5/10 - Bolster supports or mountings incorporating fluid springs
F16F 9/05 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
79.
Temperature sensor unit-equipped axle box device and temperature detecting device of railcar bogie
A temperature sensor unit-equipped axle box device of a railcar bogie includes: an axle box accommodating a bearing supporting an axle; a temperature sensor unit attached to the axle box and configured to detect a temperature of an outer ring of the bearing; and an elastic body configured to bias the temperature sensor unit in such a direction that the temperature sensor unit is pressed against the outer ring. The elastic body is elastically deformable so as to follow displacement of the temperature sensor unit around a rotation axis of the bearing.
G01K 1/14 - SupportsFastening devicesArrangements for mounting thermometers in particular locations
G01K 7/00 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
A collision energy absorbing device of a railcar includes: an outside plate constituting an outer tube including an axis extending in a car longitudinal direction; and at least one partition plate extending in the car longitudinal direction in an internal space surrounded by the outside plate, the at least one partition plate fixed to the outside plate and dividing the internal space. An outer shape of the outer tube is a shape that is symmetrical with respect to a virtual horizontal surface including the axis, and the at least one partition plate includes a missing portion in the internal space.
Invention includes bogie frame and single link type traction device coupling frame and carbody and transmitting force to carbody, force acting on bogie frame. Single link type traction device includes single link member, receiving seat, and first fastening member. Link member couples center pin of carbody and bogie frame and extends in car longitudinal direction. Receiving seat is provided at fixation target object constituted by center pin or bogie frame, and link member is fixed to receiving seat. First fastening member includes bolt and nut and fixes an end portion of link member to receiving seat. Bolt is inserted into end portion of link member and receiving seat from one side in car longitudinal direction, and nut is threadedly engaged with bolt from other side in car longitudinal direction. Receiving seat includes through hole into which bolt is inserted and nut accommodating space communicating with through hole and accommodating nut.
A collision energy absorbing device of a railcar includes: at least one outside plate constituting an outer tube having an axis extending in a car longitudinal direction; and at least one partition plate extending in the car longitudinal direction in an internal space surrounded by the at least one outside plate, the at least one partition plate fixed to the at least one outside plate and dividing the internal space. An end portion of the partition plate which portion is located at an end in a direction perpendicular to the axis is sandwiched by the at least one outside plate and constitutes a part of the outer tube.
A carbody support device of a railway vehicle, including support mechanisms installed between a front bogie and a carbody and between a rear bogie and the carbody in a traveling direction, and supporting the carbody against the respective bogies. The support mechanisms regulate both the front bogie and the rear bogie inclining in the same vehicle width direction with respect to the carbody when the railway vehicle travels through a curve, while the support mechanisms permit the front bogie and the rear bogie inclining in different vehicle width directions.
B61F 5/22 - Guiding of the vehicle underframes with respect to the bogies
B61F 5/38 - Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
A carbody support device of a railway vehicle, including support mechanisms installed between a front bogie and a carbody and between a rear bogie and the carbody in a traveling direction, and supporting the carbody against the respective bogies. The support mechanisms regulate both the front bogie and the rear bogie inclining in the same vehicle width direction with respect to the carbody when the railway vehicle travels through a curve, while the support mechanisms permit the front bogie and the rear bogie inclining in different vehicle width directions.
B61F 5/22 - Guiding of the vehicle underframes with respect to the bogies
B61F 5/38 - Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
A plate spring unit applied to a railcar bogie includes: a lower plate spring including both longitudinal direction end portions supported by the respective axle boxes from below, the lower plate spring being made of fiber-reinforced resin; an upper plate spring arranged above the lower plate spring with a gap and including a middle portion pressed from above by a pressing member provided at the cross beam, the upper plate spring being made of fiber-reinforced resin; a middle spacer sandwiched between a middle portion of the lower plate spring and the middle portion of the upper plate spring; and an end spacer sandwiched between the end portion of the lower plate spring and an end portion of the upper plate spring and allowing relative displacement between the end portion of the lower plate spring and the end portion of the upper plate spring in a longitudinal direction.
B61F 5/30 - Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
F16F 3/093 - Units comprising several springs made of plastics or the like material the springs being of different materials, e.g. having different types of rubber
B61F 3/02 - Types of bogies with more than one axle
B61F 5/16 - Centre bearings or other swivel connections between underframes and bolsters or bogies
A carbody of a railcar includes: an underframe; a first member provided at one of vertical sides of a vertical center of the underframe, supported by the underframe, and absorbing collision energy; a second member provided at the other vertical side of the vertical center of the underframe, supported by the underframe, and contacting an obstacle when the first member is compressed by collision with the obstacle. In a case where the second member receives a reaction force from the obstacle when the first member is compressed by the collision with the obstacle, the second member transfers to the underframe a moment load that is opposite in a rotational direction to a moment load transferred to the underframe by the first member.
A railcar includes a floor structure including: an underframe including a pair of side sills and a plurality of cross beams arranged between the pair of side sills; a plurality of floor panel receivers located above the cross beams, arranged with gaps in a car width direction, extending along the cross beams, and fixed to the cross beams; one or more seat receivers extending through the gaps in a car longitudinal direction and fixed to the cross beams; and floor panels covering substantially entire surfaces of upper portions of the floor panel receivers and an upper portion(s) of the one or more seat receivers from above and supported by the cross beams through the floor panel receivers and the one or more seat receivers.
An attaching metal fitting is used to attach an underfloor device to an underframe of a railcar including a beam member and includes: a first member located at a lower side of a projecting portion projecting in a horizontal direction at a lower end portion of the beam member and formed integrally with or separately from the beam member; and a second member located at an upper side of the projecting portion, wherein: the first member includes a first supporting portion overlapping the projecting portion from below to be fixed to the projecting portion; the second member includes a second supporting portion overlapping the projecting portion from above to be fixed to the projecting portion; and an upper surface of the second supporting portion supports the underfloor device with the projecting portion sandwiched between the first supporting portion and the second supporting portion.
A railcar includes: an underframe including a pair of side sills and a plurality of cross beams each connected to the pair of side sills, the cross beams being arranged at intervals in a car longitudinal direction; and a floor pan arranged in a space surrounded by the pair of side sills and a pair of adjacent cross beams among the plurality of cross beams, the floor pan being fixed to the underframe, the floor pan being configured as a strength member configured to bear at least one of a compressive load and shearing load applied from the underframe.
A brake control device of a railcar includes: a brake switching portion configured to perform switching from an operation of an electric brake device to an operation of a mechanical brake device when a switching monitoring speed obtained from a wheelset speed becomes less than a switching threshold; and an adhesion control portion configured to, when the brake switching portion performs the switching, control at least one of the electric brake device and the brake switching portion to cause a wheel to adhere to a rail.
B60T 8/17 - Using electrical or electronic regulation means to control braking
B60L 15/20 - 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 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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
An axle box suspension of a railcar bogie is configured to couple an axle box, accommodating a bearing supporting an axle, to a bogie frame and includes: an axle beam including an axle beam main body portion and an axle beam end portion, the axle beam main body portion extending from the axle box in a car longitudinal direction, the axle beam end portion being provided at a tip end of the axle beam main body portion and including a tubular portion that is open at both car width direction sides; a core rod inserted into an internal space of the tubular portion in a car width direction; an elastic bushing interposed between the tubular portion and the core rod; and a receiving seat provided at the bogie frame, both end portions of the core rod being connected to the receiving seat, the tubular portion being divided into a first semi-tubular portion and a second semi-tubular portion, the first semi-tubular portion being formed integrally with the axle beam main body portion, the second semi-tubular portion being stacked on the first semi-tubular portion in an upward/downward direction.
A state monitoring device for a plate spring mounted on a railcar bogie is configured to monitor a state of the plate spring, the plate spring including fiber-reinforced resin containing electrically conductive reinforced fibers containing reinforced fibers extending in a longitudinal direction of the plate spring. The state monitoring device includes: an electrode pair provided at both width direction side end surfaces of the plate spring and sandwiching the plate spring, a width direction of the plate spring being perpendicular to the longitudinal direction of the plate spring and a thickness direction of the plate spring; and a measuring unit electrically connected to the electrode pair and configured to measure an electrical characteristic of the plate spring.
G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time
B61F 5/30 - Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
The present invention provides a network system of a railcar, the network system being capable of efficiently performing maintenance work. One example of the network system of the railcar of the present invention includes: intra-car networks (N1 to N3) to which first and second apparatuses are connected; an inter-car network (NA) for transmission of information between the apparatuses mounted on different cars; routers (R1 to R3) each provided and connected between the corresponding intra-car network (N1 to N3) and the inter-car network (NA) and each including a network address translation portion configured to mutually convert a private address of the first apparatus and an IP address of the inter-car network (NA); and a maintenance transmission path forming unit configured to form a transmission path through which the transmission and reception of the information are performed between a maintenance terminal (5) and a maintenance target apparatus selected from the first and second apparatuses, the transmission path not passing through the network address translation portion of the car on which the maintenance target apparatus is mounted.
A tubular elastic linkage device for axle beam for elastically linking a truck frame and an axle beam including: an inner axial member; two outer segments opposed in axis-perpendicular direction peripherally outside the inner axial member for attachment to a housing part on an axle-beam side; and a main rubber elastic body elastically connecting them. A pocket part opens in an outer peripheral face of the main rubber elastic body onto outside via a window penetrating one outer segment. A stopper supported by the inner axial member is disposed in the pocket part to face the housing part distantly via the window. Contact of the stopper with the housing part constitutes a displacement limitation mechanism between the inner axial member and the outer segments. The other outer segment has an aperture having the main rubber elastic body exposed outside via it.
B61F 5/30 - Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
F16F 1/387 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin comprising means for modifying the rigidity in particular directions
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B61F 5/38 - Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
A bogie includes: a plate spring extending in a car longitudinal direction in a state where a first end portion of the plate spring is supported by the first axle box, and a second end portion of the plate spring is supported by the second axle box, the plate spring supporting the pressing member from below so as to be displaceable relative to the pressing member; a first upper link connected to the cross beam and the first axle box and including a first end portion elastically coupled to the first axle box; a first lower link connected to the cross beam and the first axle box and including a first end portion elastically coupled to the first axle box; a second upper link connected to the cross beam and the second axle box and including a first end portion elastically coupled to the second axle box; and a second lower link connected to the cross beam and the second axle box and including a first end portion elastically coupled to the second axle box, a coupling point where the first end portion of the first upper link and the first axle box are coupled to each other and a coupling point where the first end portion of the first lower link and the first axle box are coupled to each other being arranged on a first virtual straight line passing through a center of the first axle in a side view, a coupling point where the first end portion of the second upper link and the second axle box are coupled to each other and a coupling point where the first end portion of the second lower link and the second axle box are coupled to each other being arranged on a second virtual straight line passing through a center of the second axle in the side view.
A carbody of a railcar includes: a roof bodyshell; a supporting body provided under the roof bodyshell, the supporting body being attached to the roof bodyshell in a state of being positioned in the vertical direction; a rotating body which is threadedly engaged with the supporting body and rotates relative to the supporting body about an axis extending in a vertical direction to be displaced relative to the supporting body in the vertical direction; and a support target member supported by the roof bodyshell through the supporting body and the rotating body, the support target member being attached to the rotating body in a state of being positioned in the vertical direction, a vertical distance between the roof bodyshell and the support target member being adjustable by displacement of the rotating body relative to the supporting body.
B61D 17/04 - Construction details of vehicle bodies with bodies of metalConstruction details of vehicle bodies with composite, e.g. metal and wood, body structures
A control apparatus mounted on a railcar including a plurality of wheelsets includes: a torque basic value setting portion configured to set a basic value of torque applied to each of the plurality of wheelsets; an adhesion determining portion configured to determine whether or not each of the plurality of wheelsets adheres to a rail; and a torque correcting portion configured to correct the basic value of the torque to obtain a corrected value that is smaller than the basic value. The plurality of wheelsets includes one or more specific wheelsets and one or more general wheelsets other than the specific wheelsets. The torque correcting portion calculates the corrected value of the torque, applied to the general wheelset, in accordance with a first rule and calculates the corrected value of the torque, applied to the specific wheelset, in accordance with a second rule different from the first rule.
B61K 9/00 - Railway vehicle profile gaugesDetecting or indicating overheating of componentsApparatus on locomotives or cars to indicate bad track sectionsGeneral design of track recording vehicles
The present disclosure relates to a front door to be provided on an end panel of an end portion of a railcar. The front door includes a hinge provided at a first vertical side portion on the front door, the hinge supporting the front door rotatably toward the car interior side, a lock mechanism provided at a second vertical side portion on the front door, the lock mechanism locking the front door, and an emergency support mechanism that holds the front door on the end panel upon collision of an object with the front door in a locked state.
A railcar according to an embodiment of the present disclosure is a railcar with a plastic end cap covering a front surface of a car body in a front car, the railcar including: a wiper shaft configured to attach a wiper blade to an end portion of the wiper shaft and pass through the car body while extending inside and outside the car body; a penetrated portion formed as part of the car body and configured such that the wiper shaft passes through the penetrated portion; and an opening portion formed in the end cap and exposing at least part of the penetrated portion to a car exterior.
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