Automotive rear body structure

摘要

Provided is an automotive rear body structure which can effectively increase the torsional and bending rigidity of a rear part of the automotive body. A damper stiffener (21) is attached to an outer wall of each wheel house inner (15a) so as to jointly define a closed cross section. A floor cross member (22) is attached to the outer walls of floor frames (14) and a rear floor panel (6) so as to jointly define a closed cross section. Each damper stiffener (21) extends to such an extent that its lower end overlaps with the upper end of the corresponding floor frame (14) and is spot welded to the corresponding wheel house inner (15a) along with the floor cross member (22). Thereby, a closed cross section frame (23) having ridge lines (1,1') continually extending from the bottom wall of the trunk room (13) to each side wall thereof firmly connects the right and left wheel houses (15) and the rear floor panel (6) to the floor frames (14).