发明名称 |
IMPROVEMENTS IN DRIVE MECHANISMS |
摘要 |
A mechanism (10) for opening and closing gates comprises a motor (15) (Figure 2) which drives a worm gear (19) engaged with a worm wheel (30) for driving an output shaft (32) connected to a gate in use. The mechanism includes a clutch arrangement in which a pressure plate (40) is urged by springs (44) against the worm wheel (30) and an abutment on a hub (31). The clutch mechanism is enclosed in a housing (14) filled with lubricating oil and slipping of the clutch allows manual override of the drive mechanism. <IMAGE> |
申请公布号 |
GB2153004(B) |
申请公布日期 |
1987.09.03 |
申请号 |
GB19840001300 |
申请日期 |
1984.01.18 |
申请人 |
* LYE TONG SIONG;* WONG KIM |
发明人 |
* LYE TONG SIONG;* WONG KIM |
分类号 |
E05F15/00;E05F15/12;F16H1/16;F16H35/10;(IPC1-7):E05F15/12;F16D7/02 |
主分类号 |
E05F15/00 |
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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