Patent attributes
Rear vehicle body structure (10) includes a sub-frame (16), which has left and right sub side members (51, 52) and front and rear sub cross members (53, 54) that together constitute a substantially rectangular framework (46). The left sub side member includes a left rear extension portion (58) extending from the framework toward the rear of the vehicle body and connected to a left rear joint section (42), where the rear cross member and the left rear side frame are joined together. The right sub side member includes a right rear extension portion (63) extending from the framework toward the rear of the vehicle body and connected to a right rear joint section (44).