| 摘要 |
A second shock absorbing portion (18) includes an encirclement wall (42) and ribs (46) which are formed to have a height greater than that of an encirclement wall (40) and ribs (44) in a first shock absorbing portion (20). The ribs (44) and the ribs (46) have substantially the same wall thickness, and the number of the ribs (44) is the same as the number of the ribs (46). Accordingly, the second shock absorbing portion (18) is more brittle than the first shock absorbing portion (20), since the second shock absorbing portion (18) is made to have a height greater than that of the first shock absorbing portion (20). Further, the first shock absorbing portion (20) is placed in a vehicle inner side, while the second shock absorbing portion (18) is placed in a vehicle outer side. |
