Window regulator for a curved window Patent #: 4777766
ApplicationNo. 383593 filed on 07/24/1989
US Classes:49/138, WITH MEANS TO VARY OPENING SPAN OR SPEED DURING MOVEMENT49/349, Motor driven49/351Multiple levers
ExaminersPrimary: Smith, Gary L.
Assistant: Redman, Jerry
Attorney, Agent or Firm
Foreign Patent References
International ClassE05F 015/00
Foreign Application Priority Data1988-07-25 JP
AbstractA 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.