Retracting device and retracting main body used for the same
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United States of America Patent
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Feb 18, 2014
Grant Date -
May 30, 2013
app pub date -
Apr 28, 2011
filing date -
May 7, 2010
priority date (Note) -
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Abstract
A retracting device has a retracting main body including a case, a hook disposed in the case, an urging member, and a braking device including a cylinder and a piston rod; and a protruding portion engaging with and disengaging from the hook in a middle of a movement of a moving body relative to an enclosure. The hook is switched between a retracting position allowing the moving body to move in an engaged state with the protruding portion, and a standby position disallowing the moving body to move in a disengaged state. The hook is in the standby position when disengaged from the protruding portion in a state wherein the piston rod is entered with respect to the cylinder, and has reduced a protruding dimension, and is switchable to the retracting position from the standby position when the piston rod increases the protruding dimension relative to the cylinder.
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