| abstract |
A seat hack frame ( 100 ) for a vehicle made of a fiber-reinforced composite material containing a thermoplastic resin matrix and a reinforcing fiber, the seat back frame ( 100 ) including a seat back frame body ( 1 ), a metal plate ( 3 ) welded to the seat back frame body ( 1 ) at a reclining device ( 2 ) attaching position, and a metal reclining device ( 2 ) weld joined to the metal plate ( 3 ). |