A rail vehicle has a bogie which rolls on a track in a direction of travel, a vehicle structure which is supported on the bogie, a rigid carrying structure which is arranged on the end side of the rail vehicle, and an end-side coupling opening through which a coupling extends for coupling further rail vehicles. A coupling securing device secures the coupling to the rail vehicle. The coupling securing device has reversible securing elements which permit a reversible lifting movement counter to the direction of travel to such an extent that the coupling is retracted completely into the supporting structure. As a result of the retraction of the coupling into the cage-like carrying structure it no longer influences the crash behavior.

A draft gear assembly for use with railcars having coupler members is provided. The draft gear assembly has front and back ends and comprises a yoke, a coupler follower, a front resilient member, an intermediate stop member, and a back resilient member. The yoke has a back wall, a top wall extending from the back wall toward the front end of the draft gear assembly, and a bottom wall extending from the back wall toward the front end of the draft gear assembly. The coupler follower is positioned between the butt end of the coupler shank and the front end of the draft gear assembly. The front resilient member is positioned between the coupler follower and the intermediate stop member. The back resilient member is positioned between the intermediate stop member and the yoke back wall. The front and back resilient members are compressible.

A draft gear assembly for use with railcars having coupler members is provided. The draft gear assembly has front and back ends and comprises a yoke, a coupler follower, a front resilient member, an intermediate stop member, and a back resilient member. The yoke has a back wall, a top wall extending from the back wall toward the front end of the draft gear assembly, and a bottom wall extending from the back wall toward the front end of the draft gear assembly. The coupler follower is positioned between the butt end of the coupler shank and the front end of the draft gear assembly. The front resilient member is positioned between the coupler follower and the intermediate stop member. The back resilient member is positioned between the intermediate stop member and the yoke back wall. The front and back resilient members are compressible.

A regenerative energy absorption device for damping forces which occur during operation of a track-guided vehicle, in particular tensile, impact and/or torsional forces, wherein the energy absorption device includes at least one spring device with an elastomer body which is designed so as to at least partially deform elastically when forces are introduced into the energy absorption device, wherein the elastomer body is at least partially formed from an electrically conductive material, the specific electrical resistance of which varies under tensile and/or compressive load, and wherein the energy absorption device is allocated a resistance sensor device for detecting electrical conductivity or electrical resistance of the electrically conductive material.

A regenerative energy absorption device for damping forces which occur during operation of a track-guided vehicle, in particular tensile, impact and/or torsional forces, wherein the energy absorption device includes at least one spring device with an elastomer body which is designed so as to at least partially deform elastically when forces are introduced into the energy absorption device, wherein the elastomer body is at least partially formed from an electrically conductive material, the specific electrical resistance of which varies under tensile and/or compressive load, and wherein the energy absorption device is allocated a resistance sensor device for detecting electrical conductivity or electrical resistance of the electrically conductive material.

The patent was disclosed a telescopic mechanism in a telescopic hitch buffer device for use in high speed electric multiple unit (EMU) trains. The telescopic mechanism comprises a compression rod (2) located inside a movable housing (1) of said hitch buffer device, one end of said compression rod (2) being connected to the movable housing (1), and a bearing connector (3) encasing the compression rod (2). A guiding barrel (4) is fixedly mounted outside the bearing connector (3). An extension/retraction driving mechanism (9) is provided between the guiding barrel (4) and the movable housing (1). A locking mechanism comprises protrusions (6) distributed at the other end of the compression rod (2), and grooves (7) in engagement with protrusions (6) on the inner wall of the bearing connector (3). One end of the compression rod (2) is connected to the movable housing (1) via a torsion spring (5), keeping the compression rod (2) and the bearing connector (3) in a locked state; an unlocking driving mechanism is provided on the outside of the movable housing (1), and is in an unlocked state when the protrusions (6) face the grooves (7), in which case, the movable housing (1) and the bearing connector (3) can slide relative to each other. Since the extension/retraction driving mechanism (9) is provided inside the movable housing (1), volume is reduced, good protection is provided for respective components, and the telescopic mechanism and the locking mechanism are relatively simple in structure, labor-saving, reliable in operation, and can bear relatively large loads.

The patent was disclosed a telescopic mechanism in a telescopic hitch buffer device for use in high speed electric multiple unit (EMU) trains. The telescopic mechanism comprises a compression rod (2) located inside a movable housing (1) of said hitch buffer device, one end of said compression rod (2) being connected to the movable housing (1), and a bearing connector (3) encasing the compression rod (2). A guiding barrel (4) is fixedly mounted outside the bearing connector (3). An extension/retraction driving mechanism (9) is provided between the guiding barrel (4) and the movable housing (1). A locking mechanism comprises protrusions (6) distributed at the other end of the compression rod (2), and grooves (7) in engagement with protrusions (6) on the inner wall of the bearing connector (3). One end of the compression rod (2) is connected to the movable housing (1) via a torsion spring (5), keeping the compression rod (2) and the bearing connector (3) in a locked state; an unlocking driving mechanism is provided on the outside of the movable housing (1), and is in an unlocked state when the protrusions (6) face the grooves (7), in which case, the movable housing (1) and the bearing connector (3) can slide relative to each other. Since the extension/retraction driving mechanism (9) is provided inside the movable housing (1), volume is reduced, good protection is provided for respective components, and the telescopic mechanism and the locking mechanism are relatively simple in structure, labor-saving, reliable in operation, and can bear relatively large loads.

A shear-off device for a train coupler comprising a safety ring having an inner periphery formed with a thread for threaded engagement, and further comprising a radially inwards depending shear flange, the shear flange reaching in radial direction from the inner periphery towards the center axis of the safety ring, the shear flange having a flange base adjoining the inner periphery and a flange point reaching radially inside of the inner periphery.

A shear-off device for a train coupler comprising a safety ring having an inner periphery formed with a thread for threaded engagement, and further comprising a radially inwards depending shear flange, the shear flange reaching in radial direction from the inner periphery towards the center axis of the safety ring, the shear flange having a flange base adjoining the inner periphery and a flange point reaching radially inside of the inner periphery.

The present invention relates to a piston rod end for absorbing forces on a linear actuator in a train coupler, the piston rod end comprising a housing (2) enclosing a cavity (23) with a bottom surface (24), the cavity (23) extending in a longitudinal direction in the housing (2), an elongated insert (3) arranged at least partly inside the cavity (23) of the first portion (P), a spring (5) arranged inside the cavity (23), and a fastening device (4) comprising a transversal element (41) and a longitudinal slot (42) forming a play, one being arranged in the housing and the other in the insert, and configured to cooperate in such a way that the transversal element extends into the slot in a transversal direction in relation to the housing and is movable in the play. The invention also relates to a piston assembly and to a sealing method for sealing the piston rod end.