Darkening structure for ceiling and windscreen upper part of motor vehicle

The device has a canvas (1) with one end connected to a rolling tube (2) and other end connected to a hauling bar (3). The canvas is guided along lateral rails (4). An orientation unit has lateral rails (41) curved towards a base in extension to the rails (4). The rails (41) permit the canvas to deviate horizontally with respect to a roof plane by an angle (alpha) and a part of the canvas to be unfolded beyond the rails (4). An Independent claim is also included for a vehicle.