To provide an axis beam type axle box suspension which prevents an elastic bush's excessive distortion in the vehicle longitudinal direction where the bush is inserted between an axis beam and a shaft, suppresses a cost increase and simplifies inspections.SOLUTION: An elastic bush has a recess created inward in a vehicle longitudinal direction at a vehicle longitudinal direction of an inner part inside an outer peripheral surface. A cylindrical part of an axis beam has a convex stopper part which projects from a vehicle longitudinal direction of the cylinder part's inner peripheral surface outward in a vehicle longitudinal direction and is inserted into the recess where there is a clearance between the recess's bottom surface and the stopper's top surface. A wall thickness of the bush at the recess in a diameter direction is equal to or less than a half of a wall thickness in a diameter direction of the elastic bush neighboring to the recess.SELECTED DRAWING: Figure 4
【課題】軸梁と心棒との間に介装された弾性ブッシュの車両長手方向の過度な歪みを防止できると共に、コストの増加が抑制され且つ点検を簡単に行える軸梁式の軸箱支持装置を提供する。【解決手段】弾性ブッシュは、その外周面の車両長手方向内側の部分において車両長手方向外側に向けて窪んだ凹部を有する。軸梁の筒状部は、その内周面の車両長手方向内側の部分から車両長手方向外側に向けて突出し、前記凹部の底面との間に隙間をあけた状態で前記凹部に挿入された凸状のストッパ部を有する。前記弾性ブッシュの前記凹部における径方向の肉厚は、前記弾性ブッシュのうち前記凹部に隣接する部分における径方向の肉厚の半分以下である。【選択図】図4
RAILROAD VEHICLE AXLE BOX SUSPENSION AND ELASTIC BUSH SHAFT BODY
鉄道車両の軸箱支持装置及び弾性ブッシュ軸体
2019-10-17
Patent
Electronic Resource
Japanese
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