Roller guide assembly featuring a combination of a solenoid and

Details Roller guide assembly featuring a combination of a solenoid and Roller guide assembly featuring a combination of a solenoid and

1996-11-05

1998-09-22

Nappi, Robert

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes control for power source of drive-means

187394, 187410, B66B 134, B66B 704

Patent

active

058101209

ABSTRACT:
The present invention provides a roller guide assembly for controlling the position of an elevator car in relation to guide rails of an elevator hoistway in an elevator system. The roller guide assembly includes at least one electromagnet means and at least one solenoid means. The at least one electromagnet means responds to an elevator car control signal from an elevator car controller, for providing at least one electromagnet force to adjust the position of the elevator car in relation to the guide rails of the elevator hoistway. The at least one solenoid means responds to the elevator car control signal, for providing at least one solenoid force that counterbalances said at least one electromagnet force for adjusting the position of the elevator car in relation to the guide rails of the elevator hoistway.

REFERENCES:
patent: 4770438 (1988-09-01), Sugasawa et al.
patent: 4892328 (1990-01-01), Kurtzman et al.
patent: 5086882 (1992-02-01), Sugahara et al.
patent: 5117946 (1992-06-01), Traktovenko et al.
patent: 5193651 (1993-03-01), Shigeta et al.
patent: 5329077 (1994-07-01), Skalski et al.
patent: 5367132 (1994-11-01), Skalski et al.
patent: 5439075 (1995-08-01), Skalski et al.
patent: 5524730 (1996-06-01), Roberts
patent: 5535853 (1996-07-01), Skalski
"Attitude Control System of a Super-high Speed Elevator Car Based on Magnetic Guides" by H. Inaba et al., IEEE IECON '94, Bologna, Italy, Sep. 5-9, 1994.

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