The panel for the rail car and the frame of the rail car, the side framing body, the wife body structure, extending making

摘要

PROBLEM TO BE SOLVED: To avoid stress concentration while preventing a protrusion of the top part of a welding part from the floor face.;SOLUTION: A plurality of flat-plate like plate materials 1A, 1A are arranged in the vehicle-body longitudinal direction so as to constitute a floorboard 1 by welding each plate material 1A, 1A. The welding part B is provided in a recessed part S further depressed than each surface 1Aa, 1Aa of each plate material 1A, 1A. The surface B1 of the welding part B is further internally arranged than each surface (equivalent to the floor surface) of the plate materials 1A, 1A. The welding part B is prevented from exceedingly protruding to the outside from the surfaces of the plate materials 1A, 1A. Each end edge of the welding part B is connected to each end edge of the surfaces 1Aa, 1Aa of the plate materials 1A, 1A by inclined faces 12, 12 inclined with respect to the surfaces 1Aa, 1Aa of the plate materials 1A, 1A.;COPYRIGHT: (C)2009,JPO&INPIT