Device for locking rod member using lock block
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United States of America Patent
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Sep 19, 2017
Issued Date -
Mar 17, 2016
app pub date -
Aug 31, 2015
filing date -
Sep 11, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A device for locking a rod member is provided. The device includes a body section having a vertical hole therein, and a ring-type locking unit and a piston serially arranged along the hole, wherein the rod member is disposed in the hole to be axially movable through the locking unit and the piston. The locking unit may be a lock block including an outer ring having an inclined surface on one side thereof, thereby defining a wedge-type space, an inner ring coaxially disposed in one side of the outer ring and accommodating a pressurizing member interacting with the inclined surface, and a spring disposed in the other side of the outer ring so as to elastically connect the outer ring and the inner ring.
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