公开(公告)号：US20220001927A1

公开(公告)日：2022-01-06

申请号：US17231431

申请日：2021-04-15

Applicant: MAZDA MOTOR CORPORATION

Inventor： Takashi NARAHARA ,  Nobuyuki SHIBUTAKE ,  Yasushi ISHIKAWA ,  Yuichi MORITA

IPC: B62D21/15 ,  B60R19/34 ,  B60R19/02

Abstract: A front vehicle-body structure comprises a crash can fixed to a front end of a front frame. The crash can comprises an upper face portion, a lower face portion, a pair of side face portions, corner portions respectively positioned between the side face portion and the upper face portion and between the side face portion and the lower face portion, a first fragile portion provided at each of the corner portions, and a second fragile portion provided at each of the side face portions. The first fragile portion is configured to be deformed before the second fragile portion when a collision load applied toward a vehicle rearward side is inputted to an extension portion of a bumper beam. The second fragile portion is configured to be deformed before the front frame when the collision load applied toward the vehicle rearward side is inputted to the extension portion.

公开(公告)号：US20220001819A1

公开(公告)日：2022-01-06

申请号：US17356351

申请日：2021-06-23

Applicant: MAZDA MOTOR CORPORATION

Inventor： Takashi NARAHARA ,  Nobuyuki SHIBUTAKE ,  Yasushi ISHIKAWA ,  Yuichi MORITA ,  Ken FUJIMOTO ,  Yusaku YAMAGUCHI

IPC: B60R19/34 ,  B62D21/15 ,  B60R19/18

Abstract: A vehicle front body structure is provided for reliably transferring a collision load to a crash can and a front frame by preventing a bumper beam from buckling during a small overlap collision. Bending rigidity of the bumper beam in a vehicle width direction is such that 1) a bending moment generated on the bumper beam when a collision load in a direction toward a vehicle rear side is applied to an extending section, which extends outward in the vehicle width direction from a crash can fixed section, is the highest in a vehicle width direction inner end portion of the crash can fixed section on a side where the collision load is applied, and 2) the bending moment is continuously reduced as a distance from the vehicle width direction inner end portion in the vehicle width direction increases.