公开(公告)号：US20210214016A1

公开(公告)日：2021-07-15

申请号：US17054914

申请日：2019-06-14

Applicant: MAZDA MOTOR CORPORATION

Inventor： Hajime ITO ,  Hiroaki ISHIZU ,  Akiyoshi MASUDA ,  Shunsuke HIRAI ,  Yuuki SANO ,  Masashi NOTOMI ,  Takumi FUKUDA ,  Hidemitsu SHINHARA ,  Masahiro AWANE ,  Hidekazu SHIRAISHI ,  Yasuhiko NISHIDA ,  Takanori YOSHIDA ,  Ken YAMADA

IPC: B62D25/20 ,  B62D25/08

Abstract: Provided is a rear vehicle-body structure of a vehicle, capable of reducing vibrations transmitted from a rear wheel to a floor panel, while ensuring required performance for rear side frames and a cross member. The rear vehicle-body structure comprises a symmetric pair of frame members 6 extending in a vehicle longitudinal direction along respective lateral sides of a rear of a vehicle body of the vehicle, and a rear-side rear cross member 13 bridging the symmetric pair of frame members 6 in a vehicle width direction, wherein an attachment portion between each of the frame members 6 and the rear-side rear cross member 13 is provided with rigidity difference generation means 20 to generate a rigidity difference between the frame member 6 and the rear-side rear cross member 13.

公开(公告)号：US20230182547A1

公开(公告)日：2023-06-15

申请号：US18058136

申请日：2022-11-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Daisuke NAKAYAMA ,  Tomohiro KOMAJI ,  Hidemitsu SHINHARA ,  Masaki MOURI ,  Eiji ORO ,  Masayoshi SANNABE

IPC: B60J5/04

CPC classification number: B60J5/0423 ,  B60J5/0415

Abstract: A vehicle door is provided having an outer panel reinforced by a panel reinforcement and which is configured to generate low-frequency sound dominantly at the time of closing the door. The door has an outer panel openably/closably attached to a vehicle body by a front hinge; and a panel reinforcement extending in a vehicle front-rear direction on an inner side of the outer panel. The outer panel and the panel reinforcement are fixed by plural adhesion sections. The number of the adhesion sections in an upper area of the outer panel is larger than the number of the adhesion sections in a lower area of the outer panel. The number of the adhesion sections provided in a front lower area near the front hinge in the lower area is larger than the number of adhesion sections in a rear lower area away from the front hinge in the lower area.