Mechanical security device for elevators used between two levels
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United States of America Patent
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Jan 5, 1999
Grant Date -
N/A
app pub date -
Apr 16, 1996
filing date -
Dec 28, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
This invention relates to a security device for an elevator which operates between two levels, comprised of a cabin (1) closed by a swinging door (2) which opens to the exterior, the cabin (1) moving by translational vertical motion from a lower level up to a booth (3), situated at the upper level and comprising a guard rail (4) closed by a swinging landing door (5) which is normally locked, opening toward the exterior of the cabin (1) by means of an articulation situated on the same side as the door (2) of the cabin (1), the elevator being characterized in that it is provided with means, although all of passive and entirely mechanical type, conditioning the translational vertical movement of the cabin (1) between the two levels, and the locking and unlocking of doors (2) and (5) at these levels.
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