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21results about "Buffer cars" patented technology

Passive safety protection windshield structure for rail vehicle, rail vehicle and method

The present invention discloses a passive safety protection windshield structure for a rail vehicle, a rail vehicle and a method, which solves the problem in the prior art that the windshield structure cannot effectively buffer the squeezing between carriages, and has the beneficial effect of effectively resisting impact force and avoiding secondary impact. The specific scheme is as follows: A passive safety protection windshield structure for a rail vehicle comprises a capsule, which is mounted on the rail vehicle through a windshield mounting seat, and a cavity is formed between the capsule and the windshield mounting seat, and an air curtain is arranged in the cavity. The air curtain is inflatable and supported by a number of fixing devices, which are arranged along the circumferential direction of the rail vehicle; the fixing device comprises a fixing seat mounted on the windshield mounting seat, each side of the fixing seat is movably connected to the supporting member through a rotatable member, an elastic member is arranged between the rotatable member on each side and the fixing seat, and the supporting member is connected to the fixing cover, and a space is formed between the two to support the air curtain while limiting the air curtain.
Owner:CRRC QINGDAO SIFANG CO LTD

Railway vehicle

ActiveJP2025147881ABuffer carsUnderframesVehicle frameImpact
To achieve relaxing of an impact load and protection of a living space in a railroad vehicle provided with an impact absorption structure for absorbing collision energy.SOLUTION: In a railway vehicle 1, a front frame 41 is erected at a front side end part in a vehicle longitudinal direction X of a base frame 2. In the railway vehicle 1, a support frame 10A is installed with a clearance S11 behind the front frame 41. The support frame 10A is formed in a V shape, and both end parts are fixed to the base frame 2. The clearance S11 is provided so as to bring the front frame 41 into contact with the support frame 10A after the front frame 41 is plastically deformed.SELECTED DRAWING: Figure 1
Owner:NIPPON SHARYO LTD +1

A shear-off device for train couplers

PendingEP4472876A4Buffer carsDrilling rods
A shear-off device for a train coupler comprising a safety ring (2) having an inner periphery (7) formed with a thread (8) for threaded engagement, and further comprising a radially inwards depending shear flange (9), the shear flange (9) reaching in radial direction from the inner periphery (7) towards the centre axis (C) of the safety ring, the shear flange having a flange base (10) adjoining the inner periphery (7) and a flange point (11) reaching radially inside of the inner periphery (7).
Owner:RXD RES EXCHANGE DEV AB

Driver's seat

PendingJP2026089469ABuffer carsMovable seatsDriver/operatorCoil spring
To provide new technology to protect train drivers during collisions. [Solution] The driver's seat 10 of the railway vehicle is equipped with a turning mechanism (e.g., a rotating support mechanism 30) that can change the orientation of the front of the seat from a normal state to an emergency state which is the opposite direction to the normal state, and a deployment part (e.g., a lateral extension frame 27, a coil spring 28, a lateral extension stopper 70) that holds an auxiliary device (e.g., a footrest 80) for reducing injury to the driver 2 in the event of a collision in an unnecessary state in the normal state and deploys in conjunction with the turning mechanism to change to the emergency state.
Owner:RAILWAY TECHNICAL RESEARCH INSTITUTE

Tubular energy absorber having buffer unit

PendingUS20250383003A1Buffer carsSpringsInterior spacePhysics
Owner:KOREA RAILROAD RESEARCH INSTITUTE

Energy dissipation device

ActiveUS12472998B2Buffer carsBufferEnergy absorptionAxial compression
An energy dissipation device is shown in connection with its implementation in train couplers. The energy dissipation device comprises axially compressible, irreversibly deforming steel elements arranged in a housing and axially pre-tensioned between a compression means and a counter-pressure means. In case of an impact, the compression means is moving in sliding contact with the inside wall of the housing to provide axial compression of the energy absorbing elements while preserving the integrity of the housing.
Owner:RXD RES EXCHANGE DEV AB

Passive safety protective bellows structure for rolling stock, rolling stock and method

PendingEP4737259A1Buffer carsRailway wheel guards/bumpers
A passive safety protective bellows structure for rolling stock, a rolling stock and a method, which solve the problem in the prior art that bellows structures fail to effectively buffer carriages against compression therebetween, and have the beneficial effects of effectively resisting to impact force and avoiding secondary collisions. The specific solution is as follows: the passive safety protective bellows structure for rolling stock comprises a capsule (2); the capsule (2) is mounted on rolling stock by means of a bellows mounting base (18); an empty chamber (1) is formed between the capsule (2) and the bellows mounting base (18); an air curtain (5) is provided in the empty chamber (1); the air curtain (5) is expandable; the air curtain (5) is supported by means of a plurality of fixing devices (3); the fixing devices (3) are arranged in the circumferential direction of the rolling stock; each fixing device (3) comprises a fixing base (14) mounted on the bellows mounting base (18); each side of each fixing base (14) is movably connected to a support member by means of a rotatable member (19); an elastic member (13) is provided between the rotatable member (19) on each side and the fixing base (14); the support members are connected to a fixing cover (7), with a space (20) formed therebetween to limit the air curtain (5) while supporting the air curtain (5).
Owner:CRRC QINGDAO SIFANG CO LTD

Tubular energy absorber having buffer unit

PendingEP4663972A1Buffer carsSprings
Owner:KOREA RAILROAD RESEARCH INSTITUTE

Vehicle body collision energy absorption structure and rail vehicle

ActiveEP4238847B1Buffer carsRailway wheel guards/bumpers
A vehicle body collision energy absorption structure, comprising a front end collision energy absorption structure mounted at the front end of a head vehicle and a middle end collision energy absorption structure mounted at an end of a middle vehicle (14); the front end collision energy absorption structure comprises an airtight partition wall (4) connected to both a framework and a skin of driver's cab, a front end coupler (1) arranged below the airtight partition wall (4) along a central line of the vehicle body, front end anti-creepers (2) symmetrically distributed at two sides of the central line of the vehicle body and located below the airtight partition wall (4), and a front end energy absorption module (3), the front end energy absorption module (3) being mounted on the airtight partition wall (4) at a side deviating to the central line of the vehicle body; and the middle end collision energy absorption structure comprises a middle breakable coupler (10) mounted below a chassis, middle energy absorption modules (11) mounted at two sides of an end wall of the middle vehicle (14), and middle anti-creepers (12) located below the middle energy absorption modules (11) and corresponding to positions of side beams, wherein the length of the middle energy absorption modules (11) extends along the height direction of the end wall where the middle energy absorption modules are located. A rail vehicle, comprising a vehicle body collision energy absorption structure mounted at the head end of a vehicle body. Said structure can be used to improve the safety performance during vehicle collision while the existing urban rail vehicle platform remains unchanged.
Owner:CRRC QINGDAO SIFANG CO LTD

Railway crossing vehicle blocking and protecting device

ActiveCN223396200UBuffer carsTraffic gatesDerailmentControl theory
The utility model discloses a railway crossing vehicle blocking and protecting device, and relates to the technical field of railway crossing protection. The warning device comprises two rails, a vehicle body is arranged at the tops of the two rails, wheels are installed at the two ends of the bottom of the vehicle body, the bottoms of the two sides of each wheel are in clearance fit with the rails, a buffering supporting assembly is arranged at the top of the vehicle body, and a warning assembly is arranged at the top of the buffering supporting assembly. Through the arrangement of the buffering supporting assembly and the arrangement of directly supporting the buffering part, the phenomenon that the rolling wheels derail can be reduced when being impacted by external force, so that the overall stability of the protection device can be improved, meanwhile, when the protection device is not used, the protection part can be folded and stored, and the protection device is convenient to use. Therefore, the occupied area of the protection device is reduced, and the convenience of the protection device is improved.
Owner:曹凯

Rail vehicle

PendingDE102024120410A1Buffer carsAxle-box lubricationClassical mechanicsCarriage
The invention relates to a rail vehicle (10), in particular a rail vehicle (10) for the carriage of persons, with a car body structure (16) comprising a base structure (18), wherein the base structure (18) comprises a receiving structure (20) for receiving a reinforcement structure (22) and at least one first connecting device (23), wherein the reinforcement structure (22) comprises a plurality of reinforcement elements (82) to which at least one second connecting device (25) is assigned, and wherein the reinforcement structure (22) is modular and comprises a module structure (80), and wherein reinforcement elements (82) are and / or form module elements (84), wherein at least one second connecting device (25) of reinforcement elements (82) is provided for connection with the at least one first connecting device (23) of the base structure (18) and / or with at least one second connecting device (25) of reinforcement elements (82).
Owner:DEUTSCHES ZENTRUM FÜR LUFT UND RAUMFAHRT E V

Passive safety protective bellows structure for rolling stock, rolling stock and method

PCT designated stageWO2025241691A1Buffer carsRailway wheel guards/bumpersCarriageImpact
A passive safety protective bellows structure for rolling stock, a rolling stock and a method, which solve the problem in the prior art that bellows structures fail to effectively buffer carriages against compression therebetween, and have the beneficial effects of effectively resisting to impact force and avoiding secondary collisions. The specific solution is as follows: the passive safety protective bellows structure for rolling stock comprises a capsule (2); the capsule (2) is mounted on rolling stock by means of a bellows mounting base (18); an empty chamber (1) is formed between the capsule (2) and the bellows mounting base (18); an air curtain (5) is provided in the empty chamber (1); the air curtain (5) is expandable; the air curtain (5) is supported by means of a plurality of fixing devices (3); the fixing devices (3) are arranged in the circumferential direction of the rolling stock; each fixing device (3) comprises a fixing base (14) mounted on the bellows mounting base (18); each side of each fixing base (14) is movably connected to a support member by means of a rotatable member (19); an elastic member (13) is provided between the rotatable member (19) on each side and the fixing base (14); the support members are connected to a fixing cover (7), with a space (20) formed therebetween to limit the air curtain (5) while supporting the air curtain (5).
Owner:CRRC QINGDAO SIFANG CO LTD

End enclosure for light rail vehicles

An enclosure system attachable to a railway vehicle to protect automobiles in the event of a collision. The enclosure system having an enclosure panel that is actuatable between a deployed configuration and a stowed configuration. A breakaway mechanism configured to allow certain components of enclosure system to release from the railway vehicle in the event of a collision with another railway vehicle to ensure the anticlimbers engage between the railway vehicles to prevent override. The enclosure system having a coupler centering assembly for maintaining a coupler in a forward position when the enclosure is in the deployed configuration.
Owner:APPLIED RESEARCH ASSOCIATES INC

Vehicle head

The invention relates to the embodiment of a vehicle head with crash boxes on a lower level and an upper level with a metallic upper part of the vehicle head which is connected to the car body and at least one crash box by means of a cover plate and an end wall.
Owner:LOHR VALENTIN