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Title:
WASHER AND FASTENING STRUCTURE
Document Type and Number:
Japanese Patent JP2022073684
Kind Code:
A
Abstract:
To suppress loosening of a fastening member.SOLUTION: In a fastening structure 10, a front-side surface 20A of a washer 20 is pressed by a nut 18, and a fastening plate 16 is held between a rear-side surface 20B of the washer 20 and a mounting plate 12. Here, a deformation recessed portion 20C is formed on an inner peripheral-side part of the rear-side surface 20B of the washer 20, the deformation recessed portion 20C is opened to an inner peripheral side of the washer 20, and a front side is elastically deformed by the nut 18 by the deformation recessed portion 20C of the washer 20. Thus loosening of the nut 18 can be suppressed by reaction force of the washer 20.SELECTED DRAWING: Figure 1

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Inventors:
AOYANAGI HIROSHI
Application Number:
JP2020183831A
Publication Date:
May 17, 2022
Filing Date:
November 02, 2020
Export Citation:
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Assignee:
TOYO HATSUJO KOGYO KK
International Classes:
F16B43/00; F16B5/02
Domestic Patent References:
JPS4821710Y11973-06-25
JPS5232661U1977-03-08
JPS4431007Y11969-12-20
JP2011231860A2011-11-17
JP2014005859A2014-01-16
JP2009144883A2009-07-02
JPS50101764U1975-08-22
JPS474368U1972-09-09
JP2018054013A2018-04-05
JP3177869U2012-08-23
JPH02117408U1990-09-20
Foreign References:
WO2009096031A12009-08-06
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office



 
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