Assembly comprising a security apparatus equipping a lifting device, in particular a winch, and a system for actuating said apparatus
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United States of America Patent
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Mar 1, 2016
Grant Date -
Mar 19, 2015
app pub date -
Mar 28, 2012
filing date -
Apr 1, 2011
priority date (Note) -
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Abstract
This assembly includes a security apparatus equipping a lifting device, in particular a winch, and a system for actuating the apparatus The security apparatus includes a toothed wheel, wedged on the shaft of the lifting device, and a worm meshing with the toothed wheel. The assembly also includes: a splined shaft secured to one end of the worm; a pocketed wheel with inner and outer splines, engaged on the splined shaft; an elastic member between the pocketed wheel and a stop piece; a drive wheel with a splined hub, with which the pocketed wheel is capable of engaging rotationally; and a back-up motor, capable of rotating the drive wheel.
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