发明名称 |
Collapsible safety guard for platform lift |
摘要 |
A collapsible electric foot-toe guard is employed with a loading platform having electric controlled lift and descent movements, functioning as a safety device in the protection against unwitting protrusion of human limbs into the path of descent of the platform lift, said collapsible foot-toe guard being comprised of an outwardly depended contact plate moveably engaging a base support plate through hinge means to permit said contact plate with contact thereof to fold toward the base support plate, such folding movement effective to break a normally open, held closed electric limit switch circuit to arrest descent of the platform lift.
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申请公布号 |
US4091906(A) |
申请公布日期 |
1978.05.30 |
申请号 |
US19770772493 |
申请日期 |
1977.02.28 |
申请人 |
ADVANCE LIFTS, INCORPORATED |
发明人 |
CLARKE, DAVID E.;RICHARDS, LAWRENCE I. |
分类号 |
B66F17/00;(IPC1-7):F16D9/00 |
主分类号 |
B66F17/00 |
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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