Linear motor driven elevator

Details Linear motor driven elevator Linear motor driven elevator

1991-08-05

1993-08-10

Stephan, Steven L.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 900

Patent

active

052351440

ABSTRACT:
A linear motor driven elevator including in an elevator shaft, a fixed portion, an upper turning portion, and a lower turning portion. An ascending passage and a descending passage are sectionally formed between both turning portions in the fixed portion in a manner that the passages are positioned oppositely. A plurality of cages are accommodated in the passages, the cages being provided with permanent magnets which oppose the linear motor primary coils. Locking mechanisms for selectively locking the cages in position are provided. The turning portions each include a motor driven turn table which rotates the cage about the center axis of the elevator shaft to switch from the ascending to the descending passages and vice versa.

REFERENCES:
patent: 5090516 (1992-02-01), Grinaski et al.
patent: 5141082 (1992-08-01), Ishii et al.

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