Mazda Motor Corporation

Daisuke Imamura

Keisuke Ebisumoto

Daisuke Tsuji

Akiko Nakamoto

A vehicle-body structure that effectively distributes and transfers a side collision load in the vehicle width direction. A cross member includes a cross member top face facing a floor panel, and a cross member front face and a cross member rear face extending from respective ends in a front-rear direction of the cross member top face to the floor panel. A reinforcement member is at a side sill-side end of the cross member top face of the cross member, and a fragile portion extending in the vehicle front-rear direction is provided at a position at a side sill-side end of the cross member and overlapping the reinforcement member. The fragile portion is selected from a cutout, a bead, and a hole. The reinforcement member is a seat mounting bracket, and the fragile portion is on a vehicle-width-direction outer side of a seat mounting surface of the seat mounting bracket.

Growing community of inventors

Aki-gun, Japan

Daisuke Imamura