Patent ID: 6052946
Filing Date: 2000-04-25
Classification: B60J,E05F,E05Y

Abstract:
A window regulator apparatus, which moves a window glass in the vertical direction of a vehicle door, comprising:a plurality of pulleys rotatably supported on the vehicle door;a drum rotatably supported on the vehicle door;a carrier bracket fixedly mounted to the window glass; anda cable operatively joined to the window glass via the carrier bracket, the cable being positioned to be guided on the pulleys, whereinthe cable includes first and second extending portions operatively connected to the carrier bracket,the drum includes a first spiral groove in which one end of the cable is connected and a second spiral groove in which the other end of the cable is connected, the second spiral groove being defined to spiral in a direction opposite the first spiral groove, andwherein a depth of the first spiral groove and a depth of the second spiral groove are defined to gradually change along a rotational axis of the drum, andthe drum is formed such that the first and second extending portions of the cable are defined and operatively positioned to gradually reel in or reel out the same amount of cable as the other along the radial direction of the drum when the cable releases from the drum as the drum rotates.