Hoist for elevator
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United States of America Patent
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-
Mar 10, 2009
Grant Date -
Oct 11, 2007
app pub date -
Dec 1, 2004
filing date -
Dec 1, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hoisting machine for an elevator includes a motor having a motor body and a rotary shaft rotatable with respect to the motor body and a boss, which is a handle fit/removal member and is fixed to the rotary shaft. A manually operated handle for manually rotating the rotary shaft can be removably fitted on the boss. The boss is provided with a rotation prevention portion for preventing, when the manually operated handle is fixed to the boss, the manually operated handle from rotating with respect to the boss in a rotational direction of the rotary shaft.
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