发明名称 |
TROLLEY POLE RAISING AND LOWERING APPARATUS |
摘要 |
<p>A trolley pole is supported on a vertical shaft so as to be rotatable from side to side while in its elevated, operating position. The shaft is supported on a support structure which is tiltably mounted on a base plate on a vehicle. The base plate can be tilted by extending the arm of a linear actuator. When the base plate is tilted, the pole is lowered and centered and a gravity operated latch structure comes into effect to maintain the pole centered whenever it is not in its operating position. A control circuit for operating the actuator is disclosed.</p> |
申请公布号 |
CA1258105(A) |
申请公布日期 |
1989.08.01 |
申请号 |
CA19860511697 |
申请日期 |
1986.06.16 |
申请人 |
OB PRODUCTS, INC. |
发明人 |
GRIFFITHS, THOMAS W.;SURIS, VLADIMIR |
分类号 |
B60L5/12;B60L5/16;(IPC1-7):B60L5/12 |
主分类号 |
B60L5/12 |
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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