Lever hoist
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United States of America Patent
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Jun 23, 1998
Grant Date -
N/A
app pub date -
May 12, 1997
filing date -
Aug 13, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A lever-type hoist comprising a pressure receiving member 6, a press drive member 7 adapted to press-drive the pressure receiving member 6 through friction members 8, 9 and a reverse rotation stop ring 10, and a coil spring 13 interposed between the pressure receiving member and press-drive member, the base engaging portion 13b of coil spring 13 being engaged by an engaging groove 6d of pressure receiving member and the tip engaging portion of coil spring 13 being engaged by an engaging surface 7k of press-drive member, with an inclined surface 7h formed in the wind-up side of the engaging surface 7k.
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