公开(公告)号：US20220324520A1

公开(公告)日：2022-10-13

申请号：US17667545

申请日：2022-02-09

Applicant: Mazda Motor Corporation

Inventor： Kaito Nakamura ,  Miho Kurata ,  Sakayu Terada ,  Shuhei Narita ,  Daisuke Yamada ,  Toshitaka Miyoshi

IPC: B62D25/20 ,  B62D25/06

Abstract: A vibration damping structure includes a panel which is a structure and a damping member joined to the panel. The damping member has a plurality of joined portions joined to a mating surface of the panel through respective joined surfaces in the X direction, and a plurality of spacing portions recessed toward the side opposite to the panel in the Z direction between adjacent joined portions. The damping member is formed such that the damping member is higher in damping than the panel and a resonance frequency of the damping member is formed such that it is substantially the same as a primary resonance frequency of the panel.

公开(公告)号：US11850780B2

公开(公告)日：2023-12-26

申请号：US17295980

申请日：2019-11-15

Applicant: MAZDA MOTOR CORPORATION

Inventor： Sakura Nakano ,  Masaaki Akamine ,  Kaname Sawai ,  Akihiro Hosono ,  Shuhei Narita ,  Yu Tanaka

IPC: B29C45/37 ,  B60R13/02 ,  B29L11/00 ,  B29L31/30

CPC classification number: B29C45/372 ,  B60R13/02 ,  B29L2011/00 ,  B29L2031/3005

Abstract: A resin member includes: a resin substrate; and a micro-embossed pattern and having a plurality of recesses and a plurality of protrusions. The plurality of protrusions includes: a plurality of first protrusions; and a plurality of second protrusions having a height of from ¼ to ¾ of the height of the first protrusions. A distance between peaks of two adjacent ones of the plurality of protrusions ranges from 100 μm to 500 μm. The number of the minute regions having an angle of inclination of from −10° to 10° with respect to the reference plane ranges from 78% to 95% of the number of all of the minute regions included in the micro-embossed pattern corresponding to the predetermined distance, and the number of the minute regions having an angle of inclination of from −1° to 1° ranges from 25% to 40% of the number of all of the minute regions.

公开(公告)号：US11845496B2

公开(公告)日：2023-12-19

申请号：US17667545

申请日：2022-02-09

Applicant: Mazda Motor Corporation

Inventor： Kaito Nakamura ,  Miho Kurata ,  Sakayu Terada ,  Shuhei Narita ,  Daisuke Yamada ,  Toshitaka Miyoshi

IPC: B62D25/20 ,  B62D25/06

CPC classification number: B62D25/20 ,  B62D25/06

Abstract: A vibration damping structure includes a panel which is a structure and a damping member joined to the panel. The damping member has a plurality of joined portions joined to a mating surface of the panel through respective joined surfaces in the X direction, and a plurality of spacing portions recessed toward the side opposite to the panel in the Z direction between adjacent joined portions. The damping member is formed such that the damping member is higher in damping than the panel and a resonance frequency of the damping member is formed such that it is substantially the same as a primary resonance frequency of the panel.