Procedure for closing an elevator landing door, and a door coupl

Details Procedure for closing an elevator landing door, and a door coupl Procedure for closing an elevator landing door, and a door coupl

1999-05-21

2000-12-26

Olszewski, Robert P.

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

187330, 187335, 49120, B66B 1312

Patent

active

06164417&

ABSTRACT:
In the procedure for closing an elevator landing door (3,4), the landing door is coupled with the car door (1,2) by a door coupler, and the car door is moved by an actuator provided in conjunction with the elevator car. During the initial phase of the closing movement, the car door and landing door are moved at the same speed, but towards the end of the closing movement the landing door (3,4) is caused to move faster than the car door (1,2). Based on control by the car door movement, the coupling elements (5,6) of the door coupler are moved in the direction of the car door movement.

REFERENCES:
patent: 1326440 (1919-12-01), Chaudoir
patent: 2458702 (1949-01-01), Hains
patent: 3605952 (1971-09-01), Lusti
patent: 4410067 (1983-10-01), Leinar et al.
patent: 5005673 (1991-04-01), Rivera
patent: 5105916 (1992-04-01), Steacy et al.
patent: 5141080 (1992-08-01), Kujala
patent: 5246089 (1993-09-01), Husmann et al.
patent: 5435415 (1995-07-01), Kulak et al.
patent: 5690188 (1997-11-01), Takakusaki et al.
patent: 5918706 (1999-07-01), Kowalczyk et al.

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