Title:
CAULKING STRUCTURE
Document Type and Number:
Japanese Patent JP2020151716
Kind Code:
A
Abstract:
To prevent significant fluctuation of a contact resistance value even if electric conduction of heavy-current is performed between a caulking bolt made of iron and a fitted component with use of a metal having a thermal expansion coefficient greater than that of iron.SOLUTION: A caulking structure, in which a caulking bolt 10 made of iron comprising serration 14 is caulked and fitted to a fitted component, is so configured that the caulking bolt made of iron having serration, in which an irregularity is formed by repeating portions having a cross section of a substantially triangular shape or a circular shape, is caulked and fitted to the fitted component made of a metal having a thermal expansion coefficient greater than that of iron.SELECTED DRAWING: Figure 1
Inventors:
FUKUZAKI JUNICHI
YAMADA KOJI
MATSUI HIDEHIKO
KITAJIMA DAN
KOGA KAZUHIRO
ARAKI KENICHIRO
KOJIMA TAKESHI
YAMADA KOJI
MATSUI HIDEHIKO
KITAJIMA DAN
KOGA KAZUHIRO
ARAKI KENICHIRO
KOJIMA TAKESHI
Application Number:
JP2019049472A
Publication Date:
September 24, 2020
Filing Date:
March 18, 2019
Export Citation:
Assignee:
TOYOTA MOTOR CORP
AOYAMA SEISAKUSHO
AOYAMA SEISAKUSHO
International Classes:
B21D39/00; F16B4/00; F16B35/04; F16B35/06
Attorney, Agent or Firm:
Patent Business Corporation Najima Patent Office