Chain lever hoist
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United States of America Patent
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-
Jun 18, 2002
Grant Date -
N/A
app pub date -
Nov 18, 1999
filing date -
Dec 2, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
For providing a chain lever hoist that can ensure a stable free rotation operation over a long term with a simple design, improvement is made in the chain lever hoist wherein an engaging pawl is switched to a neutral position, at which the engaging pawl is not allowed to engage with engaging teeth in the forward direction or a reverse direction, by the operation of a selector lever and then a load chain on the non-loaded side is pulled or an operating handle is rotated in the reverse direction to thereby produce the free rotation state just the way it is, the improvement being such that the operating lever is rotatably supported on a brake cover at its opening with a predetermined spaced interval from a first hub. By virtue of this, the first hub is allowed to rotate together with the drive shaft, without contacting with the operating lever, during the free rotation operation, and as such can attain reliable free rotation operation.
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