Title:
BOLT ROTATION PREVENTING WASHER
Document Type and Number:
Japanese Patent JP2015031399
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a bolt rotation preventing washer which prevents simultaneous rotation of a bolt when rotating a nut for fastening an object with the bolt and the nut.SOLUTION: A bolt rotation preventing washer provided with a pair of walls 2 sandwiching a bolt head, includes a structure in which a peripheral portion 4 of the washer protrudes from a bottom surface 3 of the washer so that the radius of rotation of the washer is larger than the radius of rotation of a nut.
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Inventors:
HIRAI HITOSHI
Application Number:
JP2013185626A
Publication Date:
February 16, 2015
Filing Date:
July 31, 2013
Export Citation:
Assignee:
HIK KK
International Classes:
F16B39/24
Domestic Patent References:
| JPH0667915U | 1994-09-22 | |||
| JP2009115182A | 2009-05-28 | |||
| JPS4875054U | 1973-09-18 |
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