Body structure for an automobile

摘要

Provided is a body structure for an automobile that can improve the support rigidity of the trailing arms. A reinforcement member (31) connects a bracket main body (21) to a horizontal portion (3a) of a floor frame (3) via a linear section thereof. The reinforcement member (31) comprises a planar linear section (32) extending from the lower surface of a middle cross member (4) to the side surface of the bracket main body (21) and a connecting flange (33) extending from an end of the linear section (32) adjacent to the bracket main body (21). The front end of the linear section (32) is spot welded to both the lower surface of the horizontal portion (3a) of the floor frame (3) and the lower surface of the middle cross member (4). The connecting flange (33) of the reinforcement member (31) is spot welded to the inboard side wall (22) of the bracket main body (21). The reinforcement member (31) is formed with a nut retaining recess (34) at a position corresponding to the bolt hole (25) of the inboard side wall (22).