Apparatus for preventing drift of an elevator car stopped at a f

Details Apparatus for preventing drift of an elevator car stopped at a f Apparatus for preventing drift of an elevator car stopped at a f

1995-05-18

1997-03-25

Merritt, Karen B.

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific means contacting or on load support for...

Means actuated by access barrier movement

187360, B66B 526

Patent

active

056135769

ABSTRACT:
A stopping apparatus for preventing drift of an elevator car stopped at a floor is actuated by a car door panel. The apparatus includes an axle rotatably mounted on the car floor, a radially extending operating arm for contact with an edge of the car door panel, at least one radially extending stop arm and a return spring for retracting the stop arm when the car door panel is closed. As the car door panel is opened, the stop arm is rotated adjacent a stop on the wall of the elevator shaft in which the car travels. If the stop is a recess formed in the shaft wall, a free end of the stop arm cooperates with the recess to prevent drift. If the stop is a floor door threshold, two stop arms are provided to prevent drift superposed above and below the threshold.

REFERENCES:
patent: 885924 (1908-04-01), Hollinger
patent: 940792 (1909-11-01), Dempsey
patent: 943939 (1909-12-01), Kampfe
patent: 1491245 (1924-04-01), Quick
patent: 1495242 (1924-05-01), Boze
patent: 1773163 (1930-08-01), Becker
patent: 2856028 (1958-10-01), Racely
patent: 3252547 (1966-05-01), Hornedo

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