Lever type hoist having reverse rotation preventive mechanism
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United States of America Patent
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Jul 16, 1996
Grant Date -
N/A
app pub date -
Jan 27, 1994
filing date -
Feb 17, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
If the load applied on the load sheave is small, the pressing drive member contacts tightly with the friction members to make secure the braking of rotation of the drive shaft, so that the small load is prevented from moving downward by its own gravity, and moreover the operation wheel is engaged with and held in the rotation limiting member spline-coupled with the drive shaft so as to be free to idle even in a no-load state, and a spring for pressing the operation wheel to the rotation limiting member is inserted between the outer end surface of the operation wheel and the spring retainer held on the drive shaft projecting from the rotation limiting member.
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