公开(公告)号：US20230160408A1

公开(公告)日：2023-05-25

申请号：US18051336

申请日：2022-10-31

Applicant: MAZDA MOTOR CORPORATION

Inventor： Naohiko FUKUDA ,  Takahiro KUMAGAI ,  Koji MIYAMOTO ,  Hiroki KIMURA

IPC: F16B5/02

CPC classification number: F16B5/02

Abstract: A joint structure increases fastening force between a first member and a second member while preventing peeling of an anti-rust coating film of the first member. The joint structure includes the first member in which the anti-rust coating film is formed by electrodeposition on a surface of a metallic base material; the second member that contacts the first member; and fastening members that fasten the first and second members together. Plural convex portions, each having a height less than a thickness of the electrodeposition coating film, are disposed in at least a part of a surface of the second member that contacts the first member. The first member and the second member are fastened by the fastening members such that the electrodeposition coating film of the first member and the convex portions mesh with each other without the base material of the first member contacting the convex portions.