Window Regulator
As the window glass moves up along the regulator guide rail and reaches a point just before the fully closed position, it encounters resistance caused by weather strips and a stabilizer mechanism. This resistance prevents the window from closing completely. To avoid this situation and ensure correct position of the glass, two push rollers are used on both upper and lower sides. This allows the slider fitted to the glass to only be pushed to one side (side with pushing mechanism). See Fig 1 .