Drive unit for a self-propelled elevator car

Details Drive unit for a self-propelled elevator car Drive unit for a self-propelled elevator car

1996-05-31

1998-06-23

Noland, Kenneth

Elevator, industrial lift truck, or stationary lift for vehicle

Having independent supports carrying distinct loads and...

187270, B66B 900

Patent

active

057691835

ABSTRACT:
A drive unit (1,41,51) for a self-propelled elevator car (30) which travels along a pair of guide rails (27) is connected with a car-supporting structure (16) by rocker arms (15) and contact pressure springs (29). An electric motor (2,3,26,31) is coaxial with a wheel shaft (8) which extends therethrough and has a pair of drive wheels (10) mounted at the ends thereof. The motor housing (31) is connected to the axle tubes (11) by releasably attached motor flanges (12). The motor (2,3,26,31) drives the wheel axle (8) in rotation through a speed-reducing planetary gear (33) and a brake (32,34) which prevents rotation of the wheel axle (8) can be released selectively. An auxiliary drive (35,36,37) mounted on the motor (2,3,26,31) selectively rotates the wheel axle (8) in response to a power failure.

REFERENCES:
patent: 3924710 (1975-12-01), Shohet

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