Title:
BOLT WITH ENGAGEMENT PART
Document Type and Number:
Japanese Patent JP2023070805
Kind Code:
A
Abstract:
To provide a fastening bolt that can be prevented from being loosened and can be fastened only from the side of one member to be fastened.SOLUTION: A bolt 1 with an engagement part comprises: a bolt head part 2 that can be gripped and tightened with a tool; a rod-shaped bolt body 3 continuous with the bolt head part 2; a male screw part 4 provided on the tip side of the bolt body 3; a first engagement part 5 having looseness prevention convex parts 5a provided at intervals in a circumferential direction at the tip of the male screw part 4; and a second engagement part 6 having a tool engagement convex 6a further at the tip of the first engagement part 5.SELECTED DRAWING: Figure 3
Inventors:
TAKEDA MAKOTO
HAZAMA MASAYA
MIYAZAKI TORU
MATSUMURA MAKOTO
YOKOI YOJI
YOKOI SHINICHI
YANAGIDA KAZUKI
HAZAMA MASAYA
MIYAZAKI TORU
MATSUMURA MAKOTO
YOKOI YOJI
YOKOI SHINICHI
YANAGIDA KAZUKI
Application Number:
JP2021183151A
Publication Date:
May 22, 2023
Filing Date:
November 10, 2021
Export Citation:
Assignee:
KURIMOTO LTD
YOKOI SEISAKUSHO KK
YOKOI SEISAKUSHO KK
International Classes:
F16B35/00; F16B23/00; F16B39/32
Attorney, Agent or Firm:
Patent Attorney Corporation Maeda Patent Office
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