Title:
PREVENTION OF LOOSENING OF BOLT AND NUT WHICH ENABLE FIXATION BY CONNECTION OF WASHER AND BOLT OR NUT AND RELEASE BY DISCONNECTION BY ELASTIC FORCE OF SPRING KEPT IN CONTACT WITH BOTTOM PORTION OF WASHER
Document Type and Number:
Japanese Patent JP2006336855
Kind Code:
A
Abstract:
To provide a method of easily fastening and unfastening a bolt or a nut to a fastened portion by using a socket wrench.
A recess for inserting a washer with a spring having a saw-tooth projection, is formed on a surface of the fastened portion, and the washer is inserted into the recess to prevent its rotation. A bolt having a saw-tooth recess on its face kept into contact with the washer, is used, or a nut is inserted into a bolt projecting from the fastened portion, and fastened by the socket wrench, thus the washer and the saw-tooth cut portion of the bolt or nut are agreed with each other, and the loosening can be completely prevented.
Inventors:
KUINOSE ETSUZO
Application Number:
JP2005190592A
Publication Date:
December 14, 2006
Filing Date:
June 02, 2005
Export Citation:
Assignee:
KUINOSE ETSUZO
International Classes:
F16B39/24; F16B39/282; F16B43/00
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