Patent ID: 8191444

Claim:
A control device, including coupling means adapted to be coupled to an apparatus to be controlled, said coupling means being rotatably movable and being lockable in predetermined angular positions corresponding to different operating states of said apparatus to be controlled, said device comprising a driving disk driven in rotation about an axis by a motor unit, a driven disk mounted to rotate about said axis and constrained to rotate with said coupling means, and means for switching between a drive mode for driving said coupling means in rotation, in which said driving disk is mechanically connected to said driven disk so that said driving disk can drive said driven disk in rotation, and a locking mode for locking the angular position of said coupling means, in which said two disks are freely rotatable relative to each other, said switching means comprising a rotary member that is mounted to rotate about an axis parallel to said axis of said disks, the device being characterized in that said rotary member carries at least one indexing means which, due to rotation of said rotary member, can be simultaneously engaged into two slots respectively formed in the peripheral edges of said two disks so as to induce a commutation into said drive mode, and can be disengaged from at least one of said slots so as to induce a commutation into said locking mode.