Window lift mechanism

Details Window lift mechanism Window lift mechanism

1990-06-29

1992-02-04

Kannan, Philip C.

Movable or removable closures

With means to vary opening span or speed during movement

49349, 49350, 49363, E05F 1500

Patent

active

050850040

ABSTRACT:
An automobile window lift mechanism having a lift arm assembly for raising and lowering a window along a travel path between an open and closed position, a pinion gear for supplying rotative force from a motor or manual handle for actuating the lift arm assembly, and a gear train interconnecting the pinion gear and the lift arm assembly to provide a substantially instantaneous increase in mechanical advantage and window closing force as the window engages an upper seal in the closed position. The gear train includes a gear reduction configuration and/or an increased lever effort arm to increase the mechanical advantage only during the closing movement of the window as it engages the upper seal.

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patent: 4648208 (1987-03-01), Baldamus et al.
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