发明名称 |
Improvements in or relating to a spreader unit for multi-legged stands |
摘要 |
A spreader unit for controlling a multi-legged stand is presented comprising a hub having a central axis and a plurality of arms hinged to the hub to swing in radial planes with respect to the hub axis. A control shaft is mounted in the hub for rotation about the axis with a reversible gear drive between the shaft and arms so that rotation of the shaft swings the arms with respect to the hub in unison and vice versa. A control for locking the shaft against rotation with respect to the hub is provided to hold the arms in required spread positions with respect to the hub. |
申请公布号 |
GB2298570(B) |
申请公布日期 |
1998.05.13 |
申请号 |
GB19950004929 |
申请日期 |
1995.03.10 |
申请人 |
* VINTEN GROUP PLC;* VITEC GROUP PLC |
发明人 |
RICHARD ARTHUR * LINDSAY;CHARLES DAVID * HACKMAN |
分类号 |
F16M11/16;F16M11/34;(IPC1-7):F16M11/22 |
主分类号 |
F16M11/16 |
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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