To provide a lightweight and low-cost rail vehicle body structure that secures the strength with respect to traction force without increasing the mass and cost as much as possible.SOLUTION: In an underframe lower surface plate-lib connection part 54 positioned closest toward the outside of a middle beam 13, a horizontal reinforcement plate 80, which is connected to an end part of a cap beam end upper surface plate 64 and an end part of a middle beam upper surface plate 71 and has a length in the longitudinal direction is sufficiently small with respect to the middle beam 13, is bonded to a lower surface of an underframe lower surface plate 52 by a width-directional end part weld 82 of the horizontal reinforcement plate. Accordingly, the force of the traction force for vertically (101) separating or pushing a longitudinal-directional end part of a cap beam 14 can also be shared by the width-directional end part weld 82 of the horizontal reinforcement plate so that a strength load imposed on the longitudinal-directional end part of the cap beam 14 can be alleviated. Since the strength against the traction force can be ensured while suppressing the mass and cost as much as possible, a lightweight and low-cost rail vehicle body structure can be provided.SELECTED DRAWING: Figure 3

    【課題】質量や費用を極力増加させずに牽引力に対する強度を確保し、軽量で低コストな軌条車両構体を提供する【解決手段】枕梁端部上面板64の端部と中梁上面板71の端部に接合され長手方向の長さが中梁13に対して十分に小さい水平補強板80が、中梁13の外方に向かって最も近い位置にある台枠下面板・リブ結合部54において、水平補強板幅方向端部溶接82により台枠下面板52の下面に接合されている。これにより、牽引力が枕梁14の長手方向の端部を上下方向(101)に引き離したり押し付けたりする力を、水平補強板幅方向端部溶接82にも分担させることができるので、枕梁14の長手方向の端部における強度的負担を軽減できる。よって、質量や費用を極力抑えつつ牽引力に対する強度を確保できるので、軽量で低コストな軌条車両構体を提供できる。【選択図】図3


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    Title :

    RAIL VEHICLE BODY STRUCTURE


    Additional title:

    軌条車両構体


    Contributors:

    Publication date :

    2019-08-08


    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 / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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