公开(公告)号：US20230312019A1

公开(公告)日：2023-10-05

申请号：US18153837

申请日：2023-01-12

Applicant: MAZDA MOTOR CORPORATION

Inventor： Isamu KIZAKI ,  Takuto FUKUSHIMA ,  Masanori HONDA ,  Chikara KAWAMURA

IPC: B62D25/20 ,  B62D21/15

CPC classification number: B62D25/2036 ,  B62D21/15

Abstract: A lower vehicle-body structure of a vehicle is provided with a frame member having a closed-cross section. The frame member comprises a first portion and a second portion. The first portion comprises a compression face portion and a pair of side face portions. The side face portion comprises a bending portion, a compression-side area which is positioned on a side of the compression face portion relative to the bending portion and where a compressive stress is generated when the bending load is applied, and a tension-side area which is positioned on a side away from the compression face portion relative to the bending portion and where a tensile stress is generated when the bending load is applied. The compression-side area is configured to have higher rigidity than the tension-side area.

公开(公告)号：US20230347983A1

公开(公告)日：2023-11-02

申请号：US18126485

申请日：2023-03-27

Applicant: Mazda Motor Corporation

Inventor： Tomohito OKUYAMA ,  Kyohei YUKITA ,  Isamu KIZAKI ,  Kaori SUZUKI ,  Takuto FUKUSHIMA

IPC: B62D21/15 ,  B62D25/02

CPC classification number: B62D21/157 ,  B62D25/025 ,  B60J5/042

Abstract: In a vehicle side body structure, when a force that deforms a side door inward in a vehicle width direction acts on the side door, a second engagement section enters a clearance in the vehicle width direction of the side door, a first engagement section and the second engagement section respectively engage with a first engaged section and a second engaged section, and an engagement structure bent with the first engagement section serving as a fulcrum, so as to prevent the side door from flipping up.