Looseness preventive nut
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United States of America Patent
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-
Mar 20, 2007
Grant Date -
Nov 24, 2005
app pub date -
Oct 19, 2004
filing date -
May 21, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention has been made to solve the above problems, and accordingly an object thereof is to provide a looseness preventive nut which does not loosen even if vibrations are applied, and can be used as a single nut. In at least a first embodiment, the invention provides a looseness preventive nut 1 which is a nut threadedly engaging with a bolt 10, the nut being configured so that a lateral groove 3 extending in the radial direction in the range such that at least a part of a threaded portion 2 is cut, preferably in the range beyond the centerline C of the nut, is formed at a position slightly lower than a substantially middle point of the nut in the height direction.
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