发明名称 |
Elevator system |
摘要 |
Traction enhancement for a traction elevator system has an elevator car and counterweight connected by a plurality of wire ropes reeved about a drive sheave with a predetermined angle of wrap. An arcuate frame having a plurality of rollers has one end pivotally and adjustably fixed, while its other end biases the rollers against the ropes in the angle of wrap with a tension spring. Over travel of the elevator car releases the bias to allow the ropes to slip should the counterweight reach an end of its travel path.
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申请公布号 |
US4620615(A) |
申请公布日期 |
1986.11.04 |
申请号 |
US19850798256 |
申请日期 |
1985.11.14 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
MORRIS, ARNOLD M.;MORRIS, KIM E. |
分类号 |
B66B11/08;B66B15/04;(IPC1-7):B66B11/08 |
主分类号 |
B66B11/08 |
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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