Air guidance control unit for a motor vehicle
Air flow control insertable into an air opening for controlling air flowing along an air flow direction, with a closure device including a cloth or fabric adjustable between an opening position releasing the air opening and a closing position at least partially closing the air opening by means of an adjustment device for selectively releasing and closing the air opening to change the air resistance and/or for thermal management of a downstream unit in the air flow direction. Various solutions are proposed to integrate the air control system in or behind an air grille, especially in very limited installation space.
1 . An air flow control for a vehicle comprising a frame surrounding an air opening for air flowing therethrough along an air flow direction, a closure device comprising a fabric or a tissue, which is adjustable by an adjustment device between an open position releasing the air opening and a closed position at least partially closing the air opening for selectively releasing and closing the air opening, the closure device comprising a self-winding fabric roller blind with a spring winding shaft extending transversely to the air opening and spring-biased on which the fabric is windable with a first fabric end, the adjusting device comprising a rotatably mounted adjusting spindle ( 24 ) extending also transversely and parallel offset to the spring winding shaft and having counter-rotating threaded portions at opposite ends, corresponding drivers running on the threaded portions, and the drivers being connected to a second fabric end of the fabric roller blind via connecting arms rotatably articulated to said drivers.
2 . The air flow control for the vehicle according to claim 1 , comprising two spring winding shafts each located at an outer end of the frame, the adjustment spindle being located in a center of the air opening, and wherein one fabric blind each is located at an equal distance from the centered adjustment spindle.
3 . The air flow control or the vehicle according to claim 1 comprising guides for the connecting arms.
4 . The air flow control for the vehicle according to claim 3 , wherein the guides are formed as link motion channel guides.
5 . The air flow control for the vehicle according to claim 1 , wherein the drivers comprise nuts.
6 . The air flow control for the vehicle according to claim 1 , wherein the fabric has a stabilizing bar at a free end facing the adjustment spindle.
7 . The air flow control for the vehicle according to claim 6 , wherein the fabric and the stabilizing bar are formed as plastic injection moldings.
8 . The air flow control for the vehicle of claim 7 , wherein the fabric and the stabilizing bar are produced in one injection molding cycle.
9 . The air flow control for the vehicle according to claim 1 , wherein a plurality of individual frames with closure devices associated therewith can be assembled in a module-like manner to form an overall frame.
10 . The air flow control for the vehicle, according to claim 1 , further comprising an air guide control.
11 . The air flow control for the vehicle according to claim 1 , further comprising at least one air flow control.