Title:
BOLT HEAD CAP
Document Type and Number:
Japanese Patent JP2023146301
Kind Code:
A
Abstract:
To prevent rust of a bolt head even if the use amount of a caulking material is reduced or eliminated, and to enable cutting-off due to strong pressing and thus sufficiently maintain a rust-proofing function.SOLUTION: A bolt head cap 11 is equipped with a cap body 12 that covers a bolt head 52 in a fastened bolt 51, and a magnet 13 that is held at a center of a ceiling portion of the cap body 12 and exerts attraction force to the bolt head 52. The height of a ceiling surface of the cap body 12 is made to be higher than the height of the bolt head 52. At an outer peripheral side part than a magnet holding portion 21 holding the magnet 13 in the cap body 12, a thin wall portion 24 that has wall thickness thinner than a periphery and is easy to elastically deform is formed.SELECTED DRAWING: Figure 1
Inventors:
TERASAKA TAKESHI
NAKAMURA KENJI
NAKAMURA KENJI
Application Number:
JP2022053424A
Publication Date:
October 12, 2023
Filing Date:
March 29, 2022
Export Citation:
Assignee:
KYOWA RUBBER KK
International Classes:
F16B37/14; F16B41/00
Attorney, Agent or Firm:
Motoaki Nagata
Eiji Daejeon
Hiroshi Nishimura
Yoshiaki Kitamura
Yoshiaki Nagata
Eiji Daejeon
Hiroshi Nishimura
Yoshiaki Kitamura
Yoshiaki Nagata
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