公开(公告)号：US20200324823A1

公开(公告)日：2020-10-15

申请号：US16770221

申请日：2018-12-11

Applicant: MAZDA MOTOR CORPORATION

Inventor： Chikara KAWAMURA ,  Tsuyoshi NISHIHARA ,  Kazutaka ISHIKURA ,  Hiroaki TAKESHITA ,  Tsuneki SHIMANAKA ,  Taiki YOTSUYANAGI ,  Yoshiaki MURAKAMI

IPC: B62D21/15 ,  B62D21/08 ,  B62D29/04 ,  B62D27/06 ,  B60R19/18

Abstract: An impact absorbing structure for a vehicle according to the present invention includes a frame member formed of a resin material. The frame member includes a closed cross sectional portion extending in a vehicle front-rear direction, and a rib protruding at least either upward or downward from the closed cross sectional portion and extending in the vehicle front-rear direction.

公开(公告)号：US20220297769A1

公开(公告)日：2022-09-22

申请号：US17569087

申请日：2022-01-05

Applicant: MAZDA MOTOR CORPORATION ,  NIPPON STEEL Chemical & Material Co., Ltd.

Inventor： Chikara KAWAMURA ,  Tetsuya SUGIYAMA

IPC: B62D29/04 ,  B62D25/02 ,  B62D25/04 ,  B60R19/18

Abstract: Provided is a frame which is made of a fiber reinforced composite and has an increased bending strength by suppressing occurrence of buckling. The frame which is made of a fiber reinforced composite includes: a compressive wall part where a compressive stress occurs in a longitudinal direction of the frame when the frame receives a bending load in a normal direction perpendicularly intersecting the longitudinal direction; and a side wall part extending in the normal direction and defining one of corners with the compressive wall part. The compressive wall part includes a longitudinal alignment layer having reinforcement fibers aligned in the longitudinal direction. The side wall part has a surface section composed of a normal directional alignment layer having reinforcement fibers aligned in a direction different from the longitudinal direction, and serving as a differential alignment layer.

公开(公告)号：US20220297768A1

公开(公告)日：2022-09-22

申请号：US17568702

申请日：2022-01-04

Applicant: MAZDA MOTOR CORPORATION ,  NIPPON STEEL Chemical & Material Co., Ltd.

Inventor： Chikara KAWAMURA ,  Yuki KODAMA ,  Kenji NISHIDA ,  Tetsuya SUGIYAMA ,  Koichi HATTORI

IPC: B62D29/04

Abstract: Provided is a frame which is made of a fiber reinforced composite and where a bending strength and a vibration damping capability are compatible. The frame which is made of a fiber reinforced composite includes: a compressive wall part where a compressive stress occurs in a longitudinal direction of the frame when the frame receives a bending load in a normal direction perpendicularly intersecting the longitudinal direction; a side wall part extending in the normal direction and defining one of the corners with the compressive wall part; and a tension wall part which is away from the compressive wall part and extends in the longitudinal direction, and where a tensile stress occurs in the longitudinal direction when the frame receives the bending load. The tension wall part has a loss coefficient which is larger than a loss coefficient of the compressive wall part by 0.005 or more.

公开(公告)号：US20180072347A1

公开(公告)日：2018-03-15

申请号：US15658913

申请日：2017-07-25

Applicant: MAZDA MOTOR CORPORATION

Inventor： Takehiro KAMEI ,  Masanobu HANAZAKI ,  Chikara KAWAMURA ,  Masaki MOTOKI

IPC: B62D21/15 ,  B62D25/08 ,  B60R19/34

CPC classification number: B62D21/152 ,  B60R19/34 ,  B62D25/08 ,  B62D25/082 ,  B62D27/02 ,  B62D29/007

Abstract: There are provided an outer panel, an inner panel, a second reinforcement provided in the main closed-cross section and cooperates with the outer panel to form a sub closed-cross section extending longitudinally, a bead portion formed at a portion of the inner panel which is located at a position corresponding to the second reinforcement, and configured to be a starting point causing bending of a front side frame toward the second reinforcement when a collision load is applied in a vehicle collision, and a second attaching member provided at a position located on a front-end side of the front side frame relatively to the second reinforcement and configured to make the second reinforcement crushable in a bending direction in the vehicle collision. The second attaching member comprises a knot-shaped member provided inside the main closed-cross section.

公开(公告)号：US20160251035A1

公开(公告)日：2016-09-01

申请号：US15042602

申请日：2016-02-12

Applicant: MAZDA MOTOR CORPORATION

Inventor： Yuki KODAMA ,  Chikara KAWAMURA ,  Masanori HONDA

IPC: B62D21/15 ,  B62D21/05

CPC classification number: B62D21/152

Abstract: A bead portion is provided at a compression-side wall portion to be recessed toward an inside of a main closed cross section. A first reinforcing member is provided in the closed cross section and joined to a tension-side wall portion so as to form a first sub cross section extending in a longitudinal direction between the tension-side wall portion and the first reinforcing member. A second reinforcing member is provided in the closed cross section and joined to a portion of the compression-side wall portion where the bead portion is provided so as to form a second sub cross section extending vertically between the portion of the compression-side wall portion and the second reinforcing member. The first and second reinforcing members are configured to be spaced apart from each other.

Abstract translation: 在压缩侧壁部分处设置有朝向主闭合截面的内侧凹陷的胎圈部。 第一加强构件设置在封闭的横截面中并且与张力侧壁部分接合，以形成在纵向方向上在张力侧壁部分和第一加强构件之间延伸的第一副横截面。 第二加强件设置在封闭的横截面中，并且与设置有胎圈部的压缩侧壁部的一部分接合，形成在压缩侧壁部的部分之间垂直延伸的第二副横截面 和第二加强构件。 第一和第二加强构件被构造成彼此间隔开。