To provide a cushioning stopper which can increase an absorbable energy amount.SOLUTION: A cushioning stopper 11 interposed between a housing 51 having an inner peripheral face 52 and an end face part 53, and a movable member 61 arranged at an inner peripheral side of the housing 51 so as to be displaceable in an axial direction comprises: metal fittings 21 displaceable in the axial direction together with the movable member 61; an elastic body 31 held by the metal fittings 21, arranged between the metal fittings 21 and the end face part 53, and compressed when the metal fittings are displaced in a direction where the metal fittings 21 approach the end face part 53 and expanded to the outside in a radial direction; a ring member 41 arranged at an outer peripheral side of the elastic body 31 so as to be displaceable in the axial direction, pressed by the elastic body 31 when the elastic body 31 is expanded, and displaced in a direction entering a clearance cin a radial direction between the housing 51 and the metal fittings 21; and tapered inclination faces 42, 24 which are provided at an inner peripheral face of the ring member 41 and an outer peripheral face of the metal fittings 21, and expand the diameter of the ring member 41 when the ring member 41 is displaced.SELECTED DRAWING: Figure 1
【課題】吸収可能なエネルギー量を増大させることができる緩衝ストッパを提供する。【解決手段】内周面52および端面部53を設けたハウジング51とハウジング51の内周側に軸方向変位可能に配置された可動部材61との間に介装される緩衝ストッパ11であって、可動部材61とともに軸方向変位可能とされる金具21と、金具21に保持され、金具21および端面部53間に配置され、金具21が端面部53に近付く方向に変位したときに圧縮され径方向外方へ膨張する弾性体31と、弾性体31の外周側に軸方向変位可能に配置され、弾性体31が膨張したときに弾性体31に押圧されてハウジング51および金具21間の径方向間隙c2へ進入する向きに変位するリング部材41と、リング部材41の内周面、金具21の外周面に設けられ、リング部材41が変位したときにリング部材41を拡径させるテーパー状の傾斜面42,24とを備える。【選択図】図1
CUSHIONING STOPPER
緩衝ストッパ
2019-10-10
Patent
Electronic Resource
Japanese
CUSHIONING APPARATUS, COUPLER CUSHIONING APPARATUS, AND RAILWAY TRAIN
European Patent Office | 2020
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