Title:
WASHER AND FASTENING STRUCTURE
Document Type and Number:
Japanese Patent JP2022073683
Kind Code:
A
Abstract:
To eliminate burrs of a washer.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, the washer 20 is provided with C-surfaces 20G formed on a corner portion between an outer peripheral surface 20C and the front-side surface 20A, a corner portion between the outer peripheral surface 20C and the rear-side surface 20B, a corner portion between an inner peripheral surface 20D and the front-side surface 20D, and a corner portion between the inner peripheral surface 20D and the rear-side surface 20B . Thus burrs 20F of the washer 20 can be eliminated.SELECTED DRAWING: Figure 1
Inventors:
AOYANAGI HIROSHI
Application Number:
JP2020183830A
Publication Date:
May 17, 2022
Filing Date:
November 02, 2020
Export Citation:
Assignee:
TOYO HATSUJO KOGYO KK
International Classes:
F16B43/00; F16B5/02
Domestic Patent References:
| JPH07167129A | 1995-07-04 | |||
| JP2018054013A | 2018-04-05 | |||
| JP2011025288A | 2011-02-10 | |||
| JPH07246441A | 1995-09-26 | |||
| JP2005161363A | 2005-06-23 | |||
| JPH05329568A | 1993-12-14 |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office