Actuating drive comprising two friction partners

E - Fixed Constructions – 05 – F

Patent

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Details

E05F 15/16 (2006.01) B60J 1/17 (2006.01) E05F 11/38 (2006.01) E05F 11/50 (2006.01) F16D 3/50 (2006.01) F16D 7/02 (2006.01) F16H 55/14 (2006.01)

Patent

CA 2068916

The invention is used in an actuating drive comprising two friction partners, in particular a geared actuating drive with a toothed worm wheel which braces itself radially with a cup-shaped edge part against an outer rim part of a concentric slave disc which is driven over an at least tangentially elastic damping liner. The invention is designed to prevent squeaking noises between the friction partners when there is reciprocal relative movement, and to require minimal expenditure of time and energy for construction and assembly. The invention provides in each case for the one rim part to have an even edge surface and for the other rim part to have an uneven friction surface, with elevations only abutting on the one friction surface and with depressions situated inbetween. An application is particularly suited for motor-vehicle window-lifting drives and can be used between the worm wheel and over a tangentially elastic damping liner, giving a reciprocal, radial bracing of the slave disc which is in a slaving relationship.

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