COUPLING STRUCTURE OF BUMPER REINFORCEMENT AND SIDE MEMBERS

PROBLEM TO BE SOLVED: To efficiently transmit a collision load input in a bumper R/F to each side member without hindering compression deformation of each side member.SOLUTION: Each side member 14 includes a fastening extension section 22 which is provided at a tip 20 of each side member 14, is projected to the vehicle width direction outside with respect to each side member 14, and is fastened to at least one of lateral wall sections 86 of a bumper R/F16. Therefore, when a collision load is input in the bumper R/F16, the lateral wall sections 86 of the bumper R/F16 are suppressed from being deformed in a direction that the lateral wall sections are separated from each other. A fastening section of the fastening extension section 22 of each side member 14 and the lateral wall sections 86 of the bumper R/F16 is provided not to be overlapped with each side member 14 in a vehicle front view. Therefore, the collision load is transmitted from the bumper R/F16 to each side member 14, and thereby the fastening section can be suppressed from hindering compression deformation of each side member when each side member 14 is compressed and deformed in a vehicle longitudinal direction.SELECTED DRAWING: Figure 1 【課題】サイドメンバの圧縮変形を阻害することなくバンパＲ／Ｆへ入力される衝突荷重をサイドメンバへ効率的に伝達させる。【解決手段】サイドメンバ１４は、サイドメンバ１４の先端部２０に設けられると共にサイドメンバ１４に対して車両幅方向外側へ突出されかつバンパＲ／Ｆ１６の横壁部８６の少なくとも一方に締結された締結延設部２２を有している。したがって、バンパＲ／Ｆ１６に衝突荷重が入力された場合に、バンパＲ／Ｆ１６の横壁部８６が互いに離間する方向へ変形するのが抑制される。また、サイドメンバ１４の締結延設部２２とバンパＲ／Ｆ１６の横壁部８６との締結部は、車両正面視でサイドメンバ１４と重ならない位置に設けられる。したがって、衝突荷重がバンパＲ／Ｆ１６からサイドメンバ１４へ伝達されることでサイドメンバ１４が車両前後方向に圧縮変形する際に、締結部が圧縮変形を阻害するのを抑制することができる。【選択図】図１