Electromechanical drive device equipped with safety means

Details Electromechanical drive device equipped with safety means Electromechanical drive device equipped with safety means

1991-04-23

1992-01-14

Wright, Dirk

Planetary gear transmission systems or components

Input from independent power sources

Including electric motor input

475151, F16H 132

Patent

active

050806351

ABSTRACT:
This device, comprising a main motor (1), a transmission mechanism with an epicylic gear train comprising an input member (3) driven by the main motor, an output member (5), and a reaction member (7) locked in rotation when the main motor is operating,is characterised in that it furthermore comprises an auxiliary motor (10), a speed-reduction mechanism (11) with at least one stage, comprising an input member (13) driven by the auxiliary motor, and an output member (19) adapted in order to drive in rotation the reaction member (7) of the epicylic gear train, means (21, 22) being provided in order to release the reaction member and in order to lock in rotation the input member of the epicyclic gear train when the main motor is at a standstill and when the auxiliary motor must operate.

REFERENCES:
patent: 2220983 (1940-11-01), Waters
patent: 2330985 (1943-10-01), Meyer
patent: 3769856 (1973-11-01), Casey
patent: 3986412 (1976-10-01), Farley
patent: 4090416 (1978-05-01), Hicks
patent: 4411171 (1983-10-01), Figla
patent: 4760989 (1988-08-01), Elliott et al.

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