Patent attributes
A vehicle structure sub-unit includes a cross-member of metal material and two crash-box modules with their front surfaces welded or glued to the rear wall of the cross-member. A reinforcing metal plate is interposed between the front surface of at least one of the two crash-box modules and the rear wall. The rear wall has a depressed flat portion in which the reinforcing plate is received, in such a way that the surface of the reinforcing plate facing the crash-box module is substantially flush with the surface of the rear wall. A depressed portion of the rear wall is located in an offset position, closer to the center of the cross-member, with respect to the crash-box module, in such a way that the reinforcing plate is in contact only with a part of the front surface of the crash-box module, the remaining part of the front surface being in direct contact with the rear wall.