Title:
JOINING STRUCTURE, DESIGN METHOD OF JOINING STRUCTURE AND MANUFACTURING METHOD OF JOINING STRUCTURE
Document Type and Number:
Japanese Patent JP2023077711
Kind Code:
A
Abstract:
To provide a joining structure which can improve a fastening force between a first member and a second member while suppressing an exfoliation of a rust prevention film of the first member, in the structure in which the first member having the rust prevention film and the second member are fastened to each other.SOLUTION: A joining structure comprises a first member 1 in which an electrodeposited coating 6 as a rust prevention film is formed on a surface of a metal-made base material 5, a second member 2 contacting with the first member 1, and fastening members 3, 4 for fastening the first member 1 and the second member 2. Protrusions 7 having heights lower than a thickness of the electrodeposited coating 6 are formed at least at a part of the surface of the second member 2 contacting with the first member 1 in a plurality of pieces. The first member 1 and the second member 2 are fastened to each other by the fastening members 3, 4 in a state that the base material 5 of the first member 1 and the protrusions 7 do not contact with each other, and the electrodeposited coating 6 of the first member 1 and the protrusions 7 are engaged with each other.SELECTED DRAWING: Figure 2
Inventors:
FUKUDA NAOHIKO
KUMAGAI TAKAHIRO
MIYAMOTO YASUSHI
KIMURA DAIKI
KUMAGAI TAKAHIRO
MIYAMOTO YASUSHI
KIMURA DAIKI
Application Number:
JP2021191103A
Publication Date:
June 06, 2023
Filing Date:
November 25, 2021
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F16B39/24; B62D25/08; F16B5/02
Attorney, Agent or Firm:
Masataka Kotani
Tsutomu Fukunari
Tsutomu Fukunari