| 摘要 |
A seatback frame structure includes a reclining mechanism, a joining member that is joined to the reclining mechanism, a fastening member, a seatback frame, and a restricting member. The seatback frame forms a frame of a seatback that can support a back of a seated occupant. The seatback frame is fastened to the joining member by the fastening member. The restricting member includes a restricting portion. The restricting portion is fastened, together with the seatback frame, to the joining member by the fastening member. The restricting portion is configured to restrict relative movement of the seatback frame with respect to the joining member when a vehicle is involved in a rear collision. The seatback frame is made of resin, and the seatback frame is fixed in a state sandwiched by the restricting member and the joining member. |
