To provide a new structure rubber bush for a railway truck which is improved in fire retardancy and the like against a flame brought from outside, without largely losing a basic characteristic required to meet inputted vibrations and loads.SOLUTION: A rubber bush 10 used for a railway vehicle truck has a combination, combined via a rubber elastic body 16, of: a shaft-like inner member 12; and an outer member 14 which is arranged separately on outer periphery side of the inner member 12. The rubber bush 10 for a railway truck has cover parts 48, at both axial end parts of the rubber elastic body 16, covering, from outside, both exposed end surfaces 44 where the rubber elastic body 16 is exposed externally between each axial end parts of the inner member 12 and the outer member 14 and being arranged using a member different from the rubber elastic body 16.SELECTED DRAWING: Figure 3
【課題】入力される振動や荷重に対して要求される基本的な特性を大きく損なうことなく、外部から及ぼされる火炎等に対する難燃性などの向上を図ることを可能にする、新規な構造の鉄道台車用ゴムブッシュを実現すること。【解決手段】軸状の内側部材12と該内側部材12の外周側に離隔して配された外側部材14とがゴム弾性体16で連結されており、鉄道用車両の台車に用いられるゴムブッシュ10であって、前記ゴム弾性体16の軸方向端部において、前記内側部材12と前記外側部材14の各軸方向端部間で該ゴム弾性体16が外部に露出される端部露出面44を外方から覆う覆い部48が、該ゴム弾性体16とは別部材によって設けられている鉄道台車用ゴムブッシュ10。【選択図】図3
RUBBER BUSH FOR RAILWAY TRUCK
鉄道台車用ゴムブッシュ
2021-12-13
Patent
Electronic Resource
Japanese
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