CPC B62D 21/152 (2013.01) [B62D 25/08 (2013.01); B60R 19/26 (2013.01)] | 15 Claims |
1. A vehicle body comprising:
left and right side frames that extend in a vehicle body forward-rearward direction and support a collision load acting from a front or a rear; and
a coupling member that is joined to open ends of the side frames and restricts displacement between the open ends in a direction in which the open ends are away from each other,
wherein the side frame comprises a plurality of low-strength sections disposed with high-strength sections interposed therebetween in the vehicle body forward-rearward direction and having a lower strength than the high-strength sections in the vehicle body forward-rearward direction, and
wherein the low-strength sections closer to the open end has a lower strength in the forward-rearward direction,
wherein the low-strength sections comprise a crushing section which is disposed closest to the open end and weakens inner ridgelines of the side frames and outer ridgelines of the side frames to have a low strength, and
wherein low-strength areas weakening the inner ridgelines and the outer ridgelines to have a low strength are formed of a softer metal plate material than high-strength areas in accordance with temperature control during hot stamp forming.
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