Title:
ボルト
Document Type and Number:
Japanese Patent JP7305292
Kind Code:
B2
Abstract:
Provided is an invention relating to a bolt having a crushed portion of a ridge formed on a regular threaded portion of the bolt. The crushed portion of the ridge is set to have a height at which no screwing torque is generated when the bolt is screwed into an internal thread, and the crushed portion of the ridge is formed on an entire half-circumference or a partial half-circumference of the regular threaded portion so as to form a spiral shape that advances toward a shaft tip in a direction opposite to the ridge of the regular threaded portion when viewed from a head. The bolt of the present invention is used as a locking bolt or an earth bolt.
Inventors:
Gentaro Miyazaki
Application Number:
JP2021562335A
Publication Date:
July 10, 2023
Filing Date:
April 01, 2021
Export Citation:
Assignee:
Aoyama Manufacturing Co., Ltd.
International Classes:
F16B39/30
Domestic Patent References:
| JP3194854U |
Attorney, Agent or Firm:
Kusunoki Patent Office
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