Movable or removable closures – Safety means responsive to obstruction to closure – Closure drive stopping or reversal
Patent
1991-11-27
1994-04-05
Cuomo, Peter M.
Movable or removable closures
Safety means responsive to obstruction to closure
Closure drive stopping or reversal
49340, 49 27, E05F 1502
Patent
active
052993868
ABSTRACT:
A safety gate assembly is provided for use at a loading dock to prevent accidental or inadvertent movement of a loading dock vehicle through an access passageway provided on the loading dock. The assembly includes a pair of laterally spaced, upright, stationary support members positioned on opposite sides of the passageway and a housing removably mounted on one support member. An elongate gate segment is hingedly connected to the housing for movement between operative passageway-blocking and inoperative passageway-unblocking modes. When in the operative mode, the gate segment spans the distance between the support members. Movement of the gate segment is effected by a motor driven element connected to the segment and disposed within the housing. A stop is mounted for engaging the gate segment only when the latter is in the operative mode. A safety device is operatively connected to the element drive motor and is mounted on the segment and effects interruption of the movement of the elongate element if an external object obstructs the movement of the segment between the modes.
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Hahn Norbert
Naegelli Robert W.
Cuomo Peter M.
Redman Jerry
Rite-Hite Corporation
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