Kawasaki Jukogyo Kabushiki Kaisha

Takeo Marutani

Toshiyuki Hirashima

Takayuki Murata

Osamu Komaki

A body structure for rolling stock is disclosed. The body structure may include an outside sheathing of a side construction, and a plurality of reinforcement members joined to said outside sheathing interiorly of said outside sheathing. Each of said plurality of reinforcement members may include a U-shaped part which is substantially U-shaped in cross-section and two fitting flange parts extending continuously from end edges of the U-shaped part in opposite directions. The fitting flange parts may be joined to said outside sheathing by laser welding, and the U-shaped part of at least one of said plurality of reinforcement members may be smaller in width than the U-shaped part of another of said plurality of reinforcement members provided on another part of said outside sheathing.

Laser welding method, laser-welded joint, outside sheathing panel, and body structure for rolling stock

A side constructionhas an outside sheathingand outside sheathing reinforcement membersA andB joined to the outside sheathinginteriorly of the outside sheathing. The reinforcement memberA (B) is shaped like a hat in section. The reinforcement membersA provided in the vicinity of a window opening portion have a laser welding spacing Lof 80 mm and each have a hat width of 50 mm, while the reinforcement membersB provided on other part have a laser welding spacing Lof 100 mm and each have a hat width of 70 mm. The reinforcement membersA andB each have a height of 25 mm.

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Kobe, Japan

Takeo Marutani