发明名称 |
Manual winch with safety clutch, especially as a power source in nursing for lifting patients |
摘要 |
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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申请公布号 |
US4236694(A) |
申请公布日期 |
1980.12.02 |
申请号 |
US19780967144 |
申请日期 |
1978.12.06 |
申请人 |
LANDSTINGENS INKOPSCENTRAL LIC, EKONOMISK FORENING |
发明人 |
KRISTENSSON, NILS L. O. |
分类号 |
B66D1/04;B66D1/06;B66D5/20;B66D5/22;(IPC1-7):B66D1/00 |
主分类号 |
B66D1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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