Rear part structure of vehicle body

Abstract

In a rear structure of a vehicle body, a spare tire pan (5) is supported on a pair of rear frames (2, 2) extending in substantially longitudinal direction of a vehicle body. To enhance absorption of energy at the time of collision on the side without increasing the cross sectional areas of the rear frames, arcuate beads (10a-10e) continuous in a circular arc shape are formed on the spare tire pan (5). The arcuate beads (10a-10e) are so arranged as to project to rearward of the rear of the vehicle body and to be separated from each other at predetermined pitches.

Description

technical field [0001] The present invention relates to a vehicle body rear structure capable of improving the energy absorption performance of a vehicle in a rear collision. [0002] This application claims priority based on Japanese Patent Application No. 2007-093922 filed on March 30, 2007 and Japanese Patent Application No. 2007-123384 filed on May 8, 2007, and the contents thereof are incorporated herein. Background technique [0003] At the rear of the vehicle, a pair of left and right rear frames extending substantially in the front-rear direction of the vehicle body are provided. The rear frame functions to ensure the rigidity of the vehicle body and to absorb energy in a rear collision. The rear frame functions as a skeleton member of the rear part of the vehicle body, and is crushed in the longitudinal direction during a rear collision, thereby efficiently absorbing collision energy. [0004] A structure is known in which both edges of a spare tire disc to which ...

AI Technical Summary

Problems solved by technology

Therefore, in the conventional vehicle body rear structure, the trunk space and the space in the vehicle interior are compressed due to the increase in the cross section of the rear frame, and it is difficult to expand the trunk space and the space in the vehicle interior.

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