Patent ID: 7537039

Claim:
A motor vehicle door comprising: a body having an upper body edge that extends substantially horizontal relative to an operating position; at least one window pane having two mutually parallel lateral edge sections; guide elements provided on the body and in which the window pane is guided at its lateral edge sections substantially perpendicular to the upper body edge; an electric window lifter for moving the window pane up and down in the guide devices, the window lifter including a geared motor with an output shaft and at least one drive member that is driven by the geared motor and is operatively coupled to the lower edge of the window pane; a winding shaft rotatably seated below the upper body edge in the body; a blind sheet having a shape similar to that of the windowpane, a first edge of the blind sheet being fastened to the winding shaft and a second opposite edge of the blind sheet being connected to a pull bar for manually operating of the blind sheet; a spring motor coupled to the winding shaft for biasing the winding shaft in a direction for rolling up the blind sheet on the winding shaft; at least one support rod that is rigid to flexing in relation to its use, the support rod being movably guided in the body substantially at a right angle to the upper body edge, the support rod being connected, in a manner resistant to tension and compression, at an outer end to the pull bar, and having an inner end that during operation remains inside the body; a brake mechanism for the support rod, the brake mechanism producing a braking sufficient to prevent the spring motor from moving the support rod; a gear wheel mounted on and rotating integrally with the output shaft of the geared motor; a second drive member positively coupled to the gear wheel; and a coupling mechanism that acts in only one direction operatively arranged between the second drive member and the support rod in such a manner that when the window pane is in an upper position the blind sheet is manually movable up and down at any time while simultaneously engaging the support rod, and such that the extended support rod is necessarily moved downward with the window pane when the window pane is moved downward by the window lifter.