Collapsible safety guard for platform lift

Details Collapsible safety guard for platform lift Collapsible safety guard for platform lift

1977-02-28

1978-05-30

Goldberg, Howard N.

192 clutches and power-stop control

Stop mechanism

Safety device

187 1R, 192133, 200 6144, F16D 900

Patent

active

040919064

ABSTRACT:
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.

REFERENCES:
patent: 748702 (1904-01-01), Conary
patent: 2473125 (1949-06-01), Alexander
patent: 3541950 (1970-11-01), Anderson
patent: 3737009 (1973-06-01), Stoddard
patent: 3920101 (1975-11-01), Richards

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