Drive unit for adjusting window panes, sunroofs, seats and simil

Details Drive unit for adjusting window panes, sunroofs, seats and simil Drive unit for adjusting window panes, sunroofs, seats and simil

1985-09-19

1987-03-24

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

74425, 192 8C, 192 12BA, 310 76, 310 80, 310 92, E05F 316, F16D 6702, H02K 7112

Patent

active

046527818

ABSTRACT:
A drive unit for adjusting window panes, sunroofs, and seats in a vehicle has a reversible electric motor behind which is inserted a worm gear with a worm shaft. To prevent an undesired or unauthorized adjustment of a motor vehicle part, a brake device is provided. The brake device has a mechanical, one-way brake element with which the worm shaft may be coupled by an axial displacement. In order to reduce the effect of the brake device on the worm shaft when the window pane is adjusted by the electric motor, the brake element is the rotatable part of a rotation limiting device and, in the axial direction, it is supported on a stop.

REFERENCES:
patent: 2922220 (1960-01-01), Sacchini
patent: 3011605 (1961-12-01), Hungerford, Jr. et al.
patent: 3726370 (1973-04-01), Hubbard, Jr.
patent: 3826934 (1974-07-01), Leach
patent: 4246991 (1981-01-01), Oldakowski
patent: 4347452 (1982-08-01), Imahashi
patent: 4369387 (1983-01-01), Haar et al.

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