To provide a railway vehicle body structure capable of maintaining reliability of sealing between a frame and an outer plate while making a welding mark unnoticeable, and a manufacturing method thereof.SOLUTION: A railway vehicle body structure 1 comprises an outer plate 11 provided with a door opening part 21, and a door frame 31 superposed inside the outer plate 11 at the door opening part 21, in which a fillet welding part W1 consecutively formed over a whole circumference of the door frame 31 and an overlapped welding part W2 formed in spot at a predetermined interval are provided at a superposed part K of the door frame 31 and the outer plate 11, the overlapped welding part W2 is configured such that a friction member 41 having a flange part 42 and a shaft part 43 are inserted from the side closer to the door frame 31, a swelling part 31a generated in the door frame 31 is fixed by the flange part 42, and the shaft part 43 and the outer plate 11 are jointed mutually by plastic flow.SELECTED DRAWING: Figure 6
【課題】溶接痕が目立たず、かつフレームと外板との封止の信頼性を確保できる鉄道車両構体及びその製造方法を提供する。【解決手段】鉄道車両構体1は、ドア開口部21が設けられた外板11と、ドア開口部21において外板11の内側に重ね合わされたドアフレーム31と、を備え、ドアフレーム31と外板11との重ね合わせ部分Kには、ドアフレーム31の全周にわたって連続的に形成された隅肉溶接部W1と、所定の間隔をもってスポット状に形成された重ね溶接部W2と、が設けられ、重ね溶接部W2では、フランジ部42及び軸部43を有する摩擦部材41がドアフレーム31側から挿入され、ドアフレーム31に生じた盛り上がり部分31aがフランジ部42によって固定されていると共に、軸部43と外板11とが塑性流動によって互いに接合されている。【選択図】図6
RAILWAY VEHICLE BODY STRUCTURE AND MANUFACTURING METHOD OF RAILWAY VEHICLE BODY STRUCTURE
鉄道車両構体及び鉄道車両構体の製造方法
2020-10-08
Patent
Electronic Resource
Japanese
Railway vehicle roof structure, railway vehicle body and railway vehicle
European Patent Office | 2020
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