Patent ID: 7690155

Claim:
A window regulator for a vehicle for upwardly and downwardly moving a window glass, comprising: a first belt guiding member adapted to be connected to a door panel of the vehicle; a second belt guiding member adapted to be connected to the door panel with a space from the first belt guiding member; a third belt guiding member adapted to be connected to the door panel of the vehicle at a lower side of the second belt guiding member; a fourth belt guiding member adapted to be connected to the door panel of the vehicle at a lower side of the first belt guiding member; a looped belt member including a plurality of teeth at a first surface thereof; the belt member being movably provided at the first, second, third and fourth belt guiding members and exhibiting an eight-shape when installed thereon; a rotational member including a tooth portion at an outer circumferential surface thereof, the tooth portion being engaged with the plurality of teeth of the belt member; a motor adapted to be connected to the door panel and driving the rotational member to rotate in first and second rotational directions; and first and second supporting members fixedly connected to the belt member for supporting the window glass, wherein the belt member provided at the first, second, third and fourth belt guiding members includes a first moving portion between the first and fourth belt guiding members and a second moving portion between the second and third belt guiding members, the first and second moving portions being arranged to be in parallel with each other, the belt member further includes a third moving portion between the first and third belt guiding members and a fourth moving portion between the second and fourth belt guiding members, the third and fourth moving portions being arranged to intersect each other, the first and second supporting members are connected to the belt member at the first and second moving portions, respectively, and wherein a first twisted portion and a second twisted portion are respectively provided at the belt member at the third and fourth moving portions by twisting the belt member thereat for reversing the first surface and a second surface of the belt member, whereby the plurality of teeth formed at the first surface of the belt member contacts the first, second, third and fourth belt guiding members.