发明名称 |
Leveling system for aerial platforms |
摘要 |
A system for leveling a personnel carrying platform mounted on the end of an elongated vehicle mounted boom. A pendulum controlled hydraulic valve controls the application of fluid pressure to a pair of cylinders equipped on their ends with a series of links extending along a drum connected to the platform mounting pin. When the platform deviates from a level position, one of the cylinders is retracted to turn the platform mounting pin in a direction to correct the deviation. An interlock valve disables the platform leveling system unless the boom is being moved. A manual override valve allows the platform to be tilted for storage or other reasons.
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申请公布号 |
US5944138(A) |
申请公布日期 |
1999.08.31 |
申请号 |
US19970923058 |
申请日期 |
1997.09.03 |
申请人 |
ALTEC INDUSTRIES, INC. |
发明人 |
VOLLMER, EDWIN L.;BURGOON, ROGER LEIGH;PLAYER, BRYAN D.;CLEVENGER, R. DUSTIN |
分类号 |
B66F11/04;(IPC1-7):E04G1/00 |
主分类号 |
B66F11/04 |
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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