| 摘要 |
PROBLEM TO BE SOLVED: To provide a railroad vehicle body structure that is manufactured by mechanically fastening a side body structure and a roof body structure or an underframe formed of extruded shapes by the use of bolts and rivets and the like, and is hardly subjected to excessive deformation and stress even if complicated loads are applied to a connection portion between the body structures. SOLUTION: A first face plate 210 and a second face plate 220 of the extruded shape 200 provided for a joint (connection portion) of the side body structure 20 and the joint (connection portion) of the roof body structure 40 are joined by a rib 240 and an end rib 230. A third face plate 270 is integrally formed with the first face plate 210 in a manner to straddle a connection portion 250 between the end rib 230 and the first face plate 210. Since the third face plate 270 is effective in enhancing the bending rigidity of a plate E of the first face plate 210, the plate E is hardly subjected to excessive deformation and stress even if a load is applied to the lap joint (connection portion) constituted with the plate E. COPYRIGHT: (C)2011,JPO&INPIT |
