Device for controlling a flap
The invention relates to a device for controlling an element, such as a shutter, for a motor vehicle heating, ventilation and/or air conditioning system, comprising: —an arm ( 31 ) comprising an opening ( 3 ) so as to define a ring the inner circumference ( 4 ) of which at least partially comprises a rack ( 5 ) and an axial retaining means ( 14 ), —a toothed wheel ( 11 ) intended to be rigidly connected to an axis and shaped to cooperate with the axial retaining means ( 14 ) and the rack ( 5 ) so as to cause the element to move.
1 . A device for controlling an element for a motor vehicle heating, ventilating and/or air conditioning system, comprising:
an arm comprising an orifice, the orifice comprising an inside circumference that includes a first section-height part and a second section-height part that is shorter than the first section-height part in an axial direction,
wherein the first section-height part includes a rack;
a toothed wheel integrally formed with a shaft of a flap, where the toothed wheel is configured so as to cooperate with the first section-height part, the second section-height part, and the rack to move the flap,
wherein the first section-height part includes a top and the toothed wheel includes an upper portion,
wherein the upper portion of the toothed wheel rests on the top of the first section-height part, such that the first section-height part axially retains the toothed wheel,
wherein the second section-height part radially guides the toothed wheel,
wherein the orifice comprises an oblong hole, and the arm is configured to translate between two end positions such that the toothed wheel moves along an entire length of the oblong hole.
2 . The device according to claim 1 , wherein a portion of the top of the first section-height part and the rack are disposed at opposite sides of said inside circumference.
3 . The device according to claim 1 , wherein the first section-height part is constituted by a first diameter of the oblong hole and the second section-height part is constituted by a second diameter of the oblong hole, which is different from the first diameter.
4 . The device according to claim 3 , wherein a first diameter of the toothed wheel is larger than the first diameter of the oblong hole.
5 . The device according to claim 4 , wherein a second diameter of the toothed wheel is larger than the second diameter of the oblong hole.
6 . The device according to claim 5 , wherein the second section-height part is further constituted by a third diameter of the toothed wheel, which is approximately identical to the second diameter of the oblong hole.
7 . The device according to claim 1 , wherein the first section-height part and the second section-height part are constituted by a diameter of the oblong hole.
8 . The device according to claim 7 , wherein a diameter of the toothed wheel is larger than said diameter of the oblong hole.