发明名称 |
Positive terminal overspeed protection by rail grabbing |
摘要 |
A permanent magnet 54 mounted on rods 41 passes vertically over a conductive plate 56 in an elevator hoistway 36, a reactive force causes movement of the permanent magnet 54 vertically away from the conductive plate 56 so that a wedge 24 secured to the rods 41 moves within a tapered wedge guide 44 until it contacts an elevator guide rail 14 on which an elevator car 2 is riding, thereby braking the elevator car 2.
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申请公布号 |
US5301773(A) |
申请公布日期 |
1994.04.12 |
申请号 |
US19920965477 |
申请日期 |
1992.10.23 |
申请人 |
OTIS ELEVATOR COMPANY |
发明人 |
JAMIESON, ERIC K.;YOO, YOUNG S.;STEGER, RUDI;MCCARTHY, RICHARD C. |
分类号 |
B66B5/16;B66B5/18;B66B5/22;(IPC1-7):B66B5/16 |
主分类号 |
B66B5/16 |
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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