Vehicle seat and coupling method for use in vehicle seat

摘要

A vehicle seat includes a coupling bracket coupling the side frame to the floor-side seat supporting member and fixed to the side frame by welding joining. An upper part of the coupling bracket and a lower part of the side frame are overlapped with each other in an overlapped region. An edge of a first member as one of the coupling bracket and the side frame in the overlapped region is welded, in a first welding joining portion, to a second member as the other of the coupling bracket and the side frame. A joining hole extending through the first member in a plate thickness direction thereof is provided at a position in the overlapped region other than the first welding joining portion, and an edge of the joining hole is welded, in a second welding joining portion, to the second member.

主权项

1. A vehicle seat comprising:
a seat cushion having a side frame; a floor-side seat supporting member; and a coupling bracket that couples the side frame to the floor-side seat supporting member, the coupling bracket being fixed to the side frame by welding joining, wherein an upper part of the coupling bracket and a lower part of the side frame overlap each other in an overlapped region; an edge of the lower part of the side frame is welded to the coupling bracket in the overlapped region at a first welding joining portion, and a joining hole that extends through the side frame in a plate thickness direction of the side frame is provided at a position in the overlapped region other than the first welding joining portion, and an edge of the joining hole is weld to the upper part of the coupling bracket at a second welding joining portion.