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.

The present invention relates to a coupler for a railway vehicle, the coupler comprising a front portion (20) comprising a coupler head (21), a rear portion (30) comprising a mounting structure (31) for mounting on a railway vehicle, a coupler shank (26) comprising a through hole (27) having a first width (w1), the coupler shank (26) being arranged on a pin (32) extending through the through hole (27) and the pin (32) having a second width (w.sub.2) that is smaller than the first width (w.sub.1) of the through hole (27), wherein one of the coupler shank (26) and the pin (32) is connected to the coupler head (21) of the front portion (20) and the other of the coupler shank (26) and the pin (32) is connected to the mounting structure (31) of the rear portion (30), and wherein the coupler (10) further comprises a biasing device (40) arranged in the through hole (27) of the coupler shank (26), the biasing device (40) being configured to bias the pin (32) to one side of the through hole (27).

The present invention relates to a coupler for a railway vehicle, the coupler comprising a front portion (20) comprising a coupler head (21), a rear portion (30) comprising a mounting structure (31) for mounting on a railway vehicle, a coupler shank (26) comprising a through hole (27) having a first width (w1), the coupler shank (26) being arranged on a pin (32) extending through the through hole (27) and the pin (32) having a second width (w.sub.2) that is smaller than the first width (w.sub.1) of the through hole (27), wherein one of the coupler shank (26) and the pin (32) is connected to the coupler head (21) of the front portion (20) and the other of the coupler shank (26) and the pin (32) is connected to the mounting structure (31) of the rear portion (30), and wherein the coupler (10) further comprises a biasing device (40) arranged in the through hole (27) of the coupler shank (26), the biasing device (40) being configured to bias the pin (32) to one side of the through hole (27).

A cushioning device includes a first housing with a first wall, a first extremity, a first open end and a first hollow interior. A second housing includes a second wall, a second extremity, a second open end and a second hollow interior, the second hollow interior sized to receive the first wall therewithin. A spring is disposed within each of the first and second hollow interiors between the first extremity and the second extremity. The first and the second housings are designed for a reciprocal linear movement relative to each other between a first position where the first open end being disposed at a distance from the second extremity and a second position where the first open end being disposed in a direct contact with the second extremity. The cushioning device may be installed within a sill of a railcar to cushion buff or draft forces from a coupler.

A cushioning device includes a first housing with a first wall, a first extremity, a first open end and a first hollow interior. A second housing includes a second wall, a second extremity, a second open end and a second hollow interior, the second hollow interior sized to receive the first wall therewithin. A spring is disposed within each of the first and second hollow interiors between the first extremity and the second extremity. The first and the second housings are designed for a reciprocal linear movement relative to each other between a first position where the first open end being disposed at a distance from the second extremity and a second position where the first open end being disposed in a direct contact with the second extremity. The cushioning device may be installed within a sill of a railcar to cushion buff or draft forces from a coupler.