MEMBER WELDING STRUCTURE, CARGO TRANSPORT VEHICLE, AND CARGO TRANSPORT CONTAINER

摘要

Provided is a member welding structure that can decrease the amount of heat input and suppress deformation of the welded section. The welding structure (3) is of a first member (floor member (30)) comprising an extruded profile and a second member (support frame (50)) welded to the first member, and is characterized by the first member having a contacted section (80) at which the second member contacts, and a facing section (81) formed at the end of the contacted section (80), the second member having an abutted section (90) abutted to the facing section (81), and the facing section (81) and abutted section (90) being abutted and welded. The facing section (81) preferably extends in the direction of extrusion of the extruded profile. Also, an expansion section (82) is preferably formed at the rear side of the plate section (bottom plate section (34)) of the first member at the position at which the facing section (81) and the abutted section (90) are abutted and welded.