Abstract: A winding device comprising a winding tube inside which is housed a tubular motor whose profiled output shaft is fitted into a profiled hole in a transverse member fastened to the winding tube, in such a manner that the output shaft is fixed in respect of rotation with said transverse member. The profiles permit interengagement in at least two different angular positions. The output shaft has at least one resiliently retractable hook. The transverse member has at least one hooking point and a number of release passages at least equal to the number of hooks, the dimension of the release passages being such that the hook engaged in a release passage is inoperative, the hook being designed to hook automatically on a hooking point in at least one interengagement position. The positions of the hooks and release passages may be reversed.Depending on the tube in which the motor is mounted, its output shaft may or may not be axially fastened to the drive disk.