Manual winch with safety clutch, especially as a power source in nursing for lifting patients
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United States of America Patent
Stats
-
Dec 2, 1980
Grant Date -
N/A
app pub date -
Dec 6, 1978
filing date -
Dec 8, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A winch operated by a manual crank and handle for reeling-up or out a belt or rope and including a holding catch for preventing reeling-out when the handle is not actuated. A friction coupling mechanism is momentarily released when the handle is moved in the reeling-out direction, resulting in that the load is moved downwardly and actuates a screw mechanism which momentarily locks the coupling if the handle is stopped. Reeling-out is thus effected by releasing and locking actions following each other at very small intervals, the reeling-out movement being practically synchronous with the movement of the handle until it is stopped.
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Family
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