Title:
ANTI-LOOSENING STRUCTURE OF FASTENER
Document Type and Number:
Japanese Patent JP2023107270
Kind Code:
A
Abstract:
To provide an anti-loosening structure of a fastener which surely fastens a bolt.SOLUTION: Provided is an anti-loosening structure of a tap bolt to fix a fixed object to an object. The anti-loosening structure is constituted of a bolt and an auxiliary fastener through which the bolt is inserted, the bolt is composed of a bolt head and a shank having a cylindrical part and a male screw part, and the auxiliary fastener is composed of a supporter and a one-way rotation mechanism fitted and fixed to an inner peripheral surface of the supporter, and has an insertion hole into which the shank is inserted without threadedly engaging with the shank. When the fixed object is fixed to the object, in screwing the male screw part of the shank into a female screw part provided in the object, rotational torque is not transmitted to the one-way rotation mechanism when the bolt rotates in a fastening direction, and the auxiliary fastener is idled. The rotational torque, when the bolt rotates in a loosening direction, is transmitted to the one-way rotation mechanism through the cylindrical part.SELECTED DRAWING: Figure 1
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Inventors:
FUJIWARA RYO
Application Number:
JP2022008354A
Publication Date:
August 03, 2023
Filing Date:
January 24, 2022
Export Citation:
Assignee:
FUJIWARA RYO
International Classes:
F16B39/28
Attorney, Agent or Firm:
Hideaki Law Office
Ken Hiraki
Ken Hiraki