US 12,410,827 B2
Joint structure, method for designing joint structure, and method for manufacturing joint structure
Naohiko Fukuda, Aki-gun (JP); Takahiro Kumagai, Aki-gun (JP); Koji Miyamoto, Aki-gun (JP); and Hiroki Kimura, Aki-gun (JP)
Assigned to MAZDA MOTOR CORPORATION, Hiroshima (JP)
Filed by MAZDA MOTOR CORPORATION, Hiroshima (JP)
Filed on Oct. 31, 2022, as Appl. No. 18/051,336.
Claims priority of application No. 2021-191103 (JP), filed on Nov. 25, 2021.
Prior Publication US 2023/0160408 A1, May 25, 2023
Int. Cl. F16B 5/02 (2006.01)
CPC F16B 5/02 (2013.01) 17 Claims
OG exemplary drawing
 
1. A joint structure comprising:
a first member in which an anti-rust coating film is formed on a surface of a metallic base material;
a second member that contacts the first member; and
a fastening member that fastens the first member and the second member, wherein
plural convex portions, a height of each of which is less than a thickness of the anti-rust coating film, are formed in 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 member such that the anti-rust coating film of the first member and the plural convex portions mesh with each other without the base material of the first member contacting the plural convex portions, and
each of the first and second members has a through hole, the fastening member has a shaft which passes through the through hole of the first member and the through hole of the second member, and the plural convex portions are only formed in the surface of the second member around the through hole of the second member.