BUFFER MEMBER OF SHAFT JOINT FOR RAILROAD VEHICLE, AND SHAFT JOINT FOR RAILROAD VEHICLE

To improve durability of a buffer member of a shaft joint for a railroad vehicle, reduce a replacement frequency of the buffer member, and reduce the wear of a central plate.SOLUTION: A buffer member of a shaft joint for a railroad vehicle comprises: a pair of inside members that is provided at the shaft end parts of a drive shaft and a driven shaft facing each other on the same shaft, and faces each other; an outside member that surrounds the pair of inside members and engages with the inside member in a rotation transmission direction; and a center plate that is fixed to the outside member, and arranged between the inside members. The buffer member further comprises an elastic part 2 with elasticity that is attached to the inside member or the center plate, and a sliding part 3 whose surface is in contact with another member where the relative speed difference of the elastic part occurs is covered with a low friction material.SELECTED DRAWING: Figure 1 【課題】鉄道車両用軸継手の緩衝部材の耐久性を向上させ、緩衝部材の交換頻度を低減させると共に、中心板の摩耗も低減させる。【解決手段】同一軸上に相対する駆動軸と被駆動軸のそれぞれの軸端部に備えられ相対する一対の内側部材と、一対の内側部材を包囲しかつ内側部材とそれぞれ回転伝達方向に係合する外側部材と、外側部材に固定され内側部材の間に配置される中心板とを備える鉄道車両用軸継手の緩衝部材において、内側部材または中心板に装着される弾力性を備えた弾性部２と、該弾性部の相対速度差が生ずる相手部材と接触する面が低摩擦材で覆われている摺動部３とを備えるようにしている。【選択図】図１