Coordinated elevator car door-hall door movement

Details Coordinated elevator car door-hall door movement Coordinated elevator car door-hall door movement

1989-09-27

1991-04-09

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

49116, B66B 1300

Patent

active

050056735

ABSTRACT:
Movable vanes mounted on the exterior of an elevator car door engage rollers on the interior of the hallway door as the car door commences to open. Subsequent opening and closing movement of the car and the hallway doors occurs simultaneously and at the same speed so that there is no mismatched motion between the doors.

REFERENCES:
patent: 3065826 (1962-11-01), Tucker, Jr.
patent: 3605952 (1971-09-01), Lusti
patent: 3783977 (1974-01-01), Voser

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