US 11,667,331 B2
Vehicle body
Atsushi Hasegawa, Saitama (JP); Keiichiro Tsuji, Saitama (JP); Koji Yoshikawa, Saitama (JP); Takayuki Fujii, Saitama (JP); Yusuke Miura, Tokyo (JP); Tomohiro Shimizu, Tokyo (JP); and Yumi Saito, Tokyo (JP)
Assigned to Honda Motor Co., Ltd., Tokyo (JP)
Filed by Honda Motor Co., Ltd., Tokyo (JP)
Filed on Mar. 12, 2021, as Appl. No. 17/199,465.
Claims priority of application No. JP2020-049437 (JP), filed on Mar. 19, 2020.
Prior Publication US 2021/0291909 A1, Sep. 23, 2021
Int. Cl. B62D 21/15 (2006.01); B62D 25/08 (2006.01); B60R 19/26 (2006.01)
CPC B62D 21/152 (2013.01) [B62D 25/08 (2013.01); B60R 19/26 (2013.01)] 15 Claims
OG exemplary drawing
 
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.