| 摘要 |
A part of the foamed body(22) that extends out of the hat beam(11) has at most the same area as in the recess(21) in the cover or widens out over the side flanges(17,18) and has recesses in the widened parts which reduce the difference in compactness along a vertical line to be less than 15 percent when the bumper hits a vertical pillar and any part of the foamed body is compressed to total compactness. |
