Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Includes motor or motor driven linkage for shifting barrier
Patent
1995-08-31
1997-06-24
Nappi, Robert
Elevator, industrial lift truck, or stationary lift for vehicle
With barrier for regulating access to load support
Includes motor or motor driven linkage for shifting barrier
187392, 49120, B66B 1326
Patent
active
056419511
ABSTRACT:
An elevator door safety system includes hoistway side doors (2), (3) which open on both sides installed in the side of the hoistway in such a way that they can freely open and close, car side doors (5), (6) which open on both sides installed in the side of the car in such a way that they can freely open and close, a light-emitting element (10) and a light-receiving element (11) respectively provided on either door in the car side, and a pair of reflection members (12), (13) provided on either door in the hoistway side. The reflection members are arranged and dimensioned such that the light from the light-emitting element (10) is emitted toward one of the reflection members (12), which light is reflected from one of the reflection members (12) to the other reflection member (13), and from the other reflection member (13) toward the light-receiving element (11).
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Cai Zhengwei
Nakamori Masanori
Abate Joseph P.
Nappi Robert
Otis Elevator Company
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