EXTRUDED HOLLOW SHAPE AND RAILROAD ROLLING STOCK BODY STRUCTURE FORMED BY THIS SHAPE

摘要

PROBLEM TO BE SOLVED: To provide an extruded hollow shape having lightweight joint structure and a railroad rolling stock body structure formed by the shapes.

SOLUTION: In the extruded hollow shape 1, a plurality of through-holes are parallelly formed by interposing a plurality of inclined face plates 13 between a first face plate 11 and a second face plate 12. The extruded hollow shape can be jointed with other one by fitting to the width direction orthogonal to the through-hole, and either an opened end part of the state that the first face plate 11 and the second face plate 12 are opened or a closed end part of the state that the first face plate 11 and the second face plate 12 are closed by a support plate 15. When the extruded hollow shapes 1L, 1R are disposed in the width direction and fitted so as to insert one closed end part into the other opened end part, the support plate 15 is made to enter the opened end part side and the positions of joining places of abutting parts of the first face plates 11 and those of the second face plates 12 are made to be deviated.

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