Hand operated pulling and lifting hoist
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United States of America Patent
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-
Oct 31, 2017
Issued Date -
N/A
app pub date -
Feb 21, 2013
filing date -
Mar 8, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hand operated pulling and lifting hoist includes: a change gear that engages with a switching pawl fitting provided for an operation lever to convert a manual force applied to the operation lever into a hoist driving force; a fixed support ring disposed for the rotatable mounting of the operation lever about a driving member that is set about the drive shaft to transmit the hoist driving force to the drive shaft; a pivotable support ring formed on the operation lever and rotatably fitted to an internal circumference of the fixed support ring; and a driving-member contact prevention part on the change gear to prevent contact between the pivotable support ring and the driving member.
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