DETACHABLE WASHER FOR PREVENTING LOOSENING
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United States of America Patent
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Issued Date -
Jun 13, 2019
app pub date -
Aug 28, 2018
filing date -
Dec 11, 2017
priority date (Note) -
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status (Latency Note)
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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 and structural features of a polygonal groove portion. 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.
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