Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1991-06-12
1992-09-29
Pellinen, A. D.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
B66B 302
Patent
active
051515628
ABSTRACT:
A system for reducing horizontal deviations of elevators in which a cage ascends or descends in an ascending/decending path while engaged with guide rails through guide shoes is provided. The system includes a displacement device, disposed between the cage and the guide shoes, for displacing the cage relative to the guide rails in a horizontal direction. A position detecting device is provided for detecting a position of the cage in an ascending/descending direction, storage device for storing error data corresponding to guide rail installation errors with respect to positions of the cage in the ascending/descending direction and control device for controlling the displacement device to correct positional deviations of the cage in the horizontal direction resulting from the guide rail installation errors in accordance with the error data stored in the storage device, the error data corresponding to the position detected by the position detecting device.
REFERENCES:
patent: 4507738 (1985-03-01), Nozawa et al.
patent: 4617502 (1986-10-01), Sakaue et al.
patent: 4750590 (1988-06-01), Otala
Fujita Akira
Kato Hisao
Colbert Lawrence E.
Mitsubishi Denki & Kabushiki Kaisha
Pellinen A. D.
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