Vehicle window regulator

Details Vehicle window regulator Vehicle window regulator

1989-07-24

1991-03-12

Smith, Gary L.

Movable or removable closures

With means to vary opening span or speed during movement

49349, 49351, E05F 1500

Patent

active

049983792

ABSTRACT:
A vehicle window regulator displaces a window at a faster speed when the window is near its fully closed position than when the window is near its fully open position. The speed is controlled by the meshing of the peripheries of two gears, each periphery defining a varying radius about its axis of rotation. The gear peripheries can be of different shapes, such as circular eccentric, elliptical and logarithmically helical. One of the gears is driven by a constant speed electric motor.

REFERENCES:
patent: 3670454 (1972-06-01), Gebhard et al.
patent: 4777766 (1988-10-01), Johnson et al.

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