Patent ID: 6951366

Claim:
A combined structure of a rear part of a body of an automobile comprising: a pair of side members, one of the side members being arranged respectively on the left and right sides of a rear part of a body of an automobile along the longitudinal direction of the body; a cross member which is arranged along the width direction of the body and whose left and right ends are joined to the side member; and a side sill inner panel which is arranged along the longitudinal direction of the body in the width direction of the body more outside than the side member and extended more forward and rearward than the cross member, wherein the side member has a side lower wall, a side inside wall which extends upward from the inside edge of the side lower wall, and a side outside wall whose front part is provided at a position retreated from the front end of the side lower wall; the cross member has a cross bottom wall to which left and right ends are fit and joined from the lower side to the side lower wall, and a cross rear wall which is joined to a middle of the side inside wall by a rearward flange extending from the left and right ends rearward along the side inside wall; and the side sill inner panel has a sill inner vertical wall whose rear part is fit and joined to the front part of the side outside wall from the outside of the width direction of the body.