Shading device for a rear window arrangement of a motor vehicle

A shading device for a rear window arrangement of a motor vehicle, including a shading structure arranged so as to be shiftable relative to the rear window arrangement between a compactly stored inoperative position and an extended shading position, and a substantially rigid extension profile arranged on an end region of the shading structure, the extension profile being guided so as to be shiftable in vehicle-mounted, lateral guide arrangements, the extension profile being assigned at least two different visible contours which can be brought into different functional positions by rotation about a longitudinal axis of the extension profile, the extension profile being mounted on opposite ends by respective ball and socket hinge joints so as to be pivotable about the longitudinal axis relative to lateral guide elements which are guided in the lateral guide arrangements, the extension profile having a central profile and lateral telescopic sections each having a bearing pin oriented coaxially with the longitudinal axis of the extension profile, each bearing pin engaging in one of the ball and socket joints.