A rear end cross member reinforcement structure of automobile constructed to have respective members forming a rear end cross member join together to form a closed cross-sectional shape such that an external force applied from outside can be effectively diffused, and to have a structure at a joined portion between both tip end portions of the rear end cross member and a quarter panel changed to reinforce a structural strength relative to the rear end cross member, such that the rear end cross member can fully withstand an external force when the external force such as torsion or the like is applied thereto, the rear end cross member reinforcement structure of automobile having a rear body including a rear end cross member arranged crosswise of the body and a quarter panel joining both tip end portions of the rear end cross member, wherein each tip end of an upper rear end cross member, a lower rear end cross member and an outer rear end cross member which form the rear end cross member is joined together to form a closed cross-sectional shape and both tip end portions of the rear end cross member is joined by the quarter panel to form another closed cross-sectional shape.
A pickup truck has a rear vehicle body structure in which a fuel piping system is guided through a rear wheel apron along a cargo bed of the vehicle. A reinforcing member is jointed to the rear wheel apron such as to cover a part of the apron at which a hose of the fuel piping system is led out onto the cargo bed. A lower end of the reinforcing member is bent toward the vehicle body center to form a flange. The rear wheel apron and the rear floor panel are jointed together, with a side edge of the rear floor panel being superposed on the flange of the reinforcing member. The linking strength between the rear wheel apron and the cargo bed of the vehicle is thereby increased without adding any major change in the body design. While the rigidity around the rear wheel apron is improved, the structure does not inhibit the vehicle body from being deformed in a rear impact collision and is capable of protecting the fuel piping system from the impact.
