Abstract: Shading device with a shading structure windably held on a winding shaft arranged in a vehicle-mounted receiving region with a passage through which the shading structure is pulled into a shading position or wound up into an inoperative position. The passage is closed or opened by a pivotably mounted closing part. The shading structure is provided with a profile movable along the window with the aid of a drive system to shift the shading structure between the inoperative and shading positions. The closing part is controlled by a control mechanism between closed and opening positions depending on a shifting movement of the pull-out profile. The control mechanism has a rotatable eccentric disk operatively connected to the closing part, the outer circumference of which has different control contours for reproducing the closed position and the opening position of the closing part depending on a rotational position of the disk.