Title:
緩み防止のための脱着型ワッシャ
Document Type and Number:
Japanese Patent JP6626546
Kind Code:
B2
Abstract:
Provided is a detachable washer for preventing loosening by preventing the bolt or the nut fastened to a fastening target from being easily rotated in a loosening direction, by using the magnetic force of a magnet (200) and structural features of a polygonal groove portion (300). For this purpose, the detachable washer for preventing loosening includes: a washer provided for a fastening target to prevent loosening of a bolt or a nut, the washer including: a body interposed between the nut or a bolt head portion and the fastening target and having a through-hole formed in a center thereof; and a magnet provided in the body to generate a magnetic force toward both sides of the body, wherein a polygonal groove portion corresponding to the nut or the bolt head portion is formed in one side of the body.
Inventors:
Youn
Grandson
Grandson
Application Number:
JP2018160142A
Publication Date:
December 25, 2019
Filing Date:
August 29, 2018
Export Citation:
Assignee:
Find Mold Company Limited
International Classes:
F16B43/00; F16B39/10; F16B39/24
Domestic Patent References:
| JP2017524116A | ||||
| JP48030518Y1 | ||||
| JP51050153U | ||||
| JP7083743A |
Foreign References:
| US20160160904 | ||||
| CN102865280A |
Attorney, Agent or Firm:
Takeshi Takada