To improve the strength of a body bolster while preventing increase in reinforcement and thickness of the body bolster.SOLUTION: A body bolster of a railway vehicle truck includes a bolster body part in which a pair of auxiliary air chambers respectively communicating with a pair of air springs are formed inside and a stopper structure part protruding upward from a center part of the bolster body part in a vehicle width direction. An upper wall of the bolster body part includes a center upper wall part provided with the stopper structure part and a pair of outer upper wall parts jointed to the center upper wall part so as to be respectively adjacent to both sides of the center upper wall part in the vehicle width direction. Each of the pair of outer upper wall parts includes an upward bending part which upwardly bends toward the stopper structure part at the center side in the vehicle width direction and is jointed to the center upper wall part in the end part at the side of the stopper structure part rather than the upward bending part.SELECTED DRAWING: Figure 2

    【課題】枕梁の補強増加や厚肉化を防ぎながら枕梁の強度を向上させる。【解決手段】鉄道車両台車の枕梁は、一対の空気バネに夫々連通する一対の補助空気室を内部に形成した枕梁本体部と、前記枕梁本体部の車幅方向の中央部から上方に突出したストッパ構造部と、を備える。前記枕梁本体部の上壁は、前記ストッパ構造部が設けられる中央上壁部と、前記中央上壁部の車幅方向両側に夫々隣接して前記中央上壁部に接合された一対の外上壁部と、を有する。前記一対の外上壁部の各々は、その車幅方向中央側において前記ストッパ構造部に向けて上方に屈曲した上方屈曲部を有し、前記上方屈曲部よりも前記ストッパ構造部側の端部において前記中央上壁部と接合されている。【選択図】図2


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    Title :

    BODY BOLSTER OF RAILWAY VEHICLE TRUCK


    Additional title:

    鉄道車両台車の枕梁


    Contributors:

    Publication date :

    2018-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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