To improve the manufacturing efficiency of a truck frame for a railway vehicle by reducing positioning of members and a workload relating to welding in the case of welding a plurality of long members to manufacture the truck frame for a railway vehicle.SOLUTION: A method for manufacturing a truck frame for a railway vehicle includes: preparing a plurality of members including at least one first long member having a plate part and a projection part continuous to the plate part to project outward from one plate surface of the plate part when viewed from a longitudinal direction, and at least one long second member extending in the longitudinal direction of the first members; and forming a hollow beam having a closed space surrounded by the plurality of members when viewed from the longitudinal direction by welding the first member and the second member to a side surface of the projection part of the first member in a state in which a plate surface of the second member is in contact from both sides of the first member in a width direction.SELECTED DRAWING: Figure 3

    【課題】複数の長尺状の部材を溶接して鉄道車両用台車枠を製造する場合において、部材同士の位置合わせ、及び、溶接に係る作業負担を軽減することにより、鉄道車両用台車枠の製造効率を向上させる。【解決手段】鉄道車両用台車枠の製造方法は、長手方向から見て、板部と、板部と連続して板部の一方の板面から外方に突出する凸部と、を有する少なくとも1つの長尺状の第1部材と、第1部材の長手方向に延びる、少なくとも1つの長尺状の第2部材と、を含む複数の部材を準備することと、第1部材の凸部の側面に対し、第1部材の幅方向の両側から第2部材の板面を接触させた状態で、第1部材及び第2部材を溶接することにより、長手方向から見て、複数の部材により囲まれた閉空間を有する中空状の梁を形成することと、を含む。【選択図】図3


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    Title :

    TRUCK FRAME FOR RAILWAY VEHICLE AND METHOD FOR MANUFACTURING TRUCK FRAME FOR RAILWAY VEHICLE


    Additional title:

    鉄道車両用台車枠及び鉄道車両用台車枠の製造方法


    Contributors:

    Publication date :

    2025-02-21


    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 / B23K Löten , SOLDERING OR UNSOLDERING



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