Automatic landing apparatus in service interruption

Details Automatic landing apparatus in service interruption Automatic landing apparatus in service interruption

1978-07-17

1980-09-02

Truhe, J. V.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 502

Patent

active

042202221

ABSTRACT:
An automatic landing apparatus in service interruption comprises; an electromagnetic brake which is released to release a main motor for driving a cage; an auxiliary motor which is equipped together with the main motor to drive the cage; an emergency power source which has a power for releasing the electromagnetic brake and driving the auxiliary motor; a brake releasing circuit which maintains the releasing of the electromagnetic brake by the emergency power source when the service interruption of the normal power source is caused during the driving of the cage; and a restarting circuit which drives the auxiliary motor when the cage is not stopped at the door openable zone when the case is moved under releasing the electromagnetic brake whereby the case is moved by the actuation of the restarting circuit.

REFERENCES:
patent: 2701033 (1955-02-01), Chiselbrook
patent: 3144917 (1964-08-01), Tressel
patent: 3469657 (1969-09-01), Sgroi
patent: 3658156 (1972-04-01), Abbott

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