Patent ID: 7670215

Claim:
A control device for controlling air flows in a motor vehicle, comprising: a frame having at least one passage opening; and a roller-type louver for changing a passage cross section for air flowing through the passage opening, wherein the frame comprises a housing with at least two hollow bodies which are open along longitudinal sides, each hollow body accommodating a drive shaft or a return shaft for the roller-type louver, wherein each hollow body comprises a longitudinal portion running along a longitudinal axis of the drive shaft or return shaft, a pivotable cover for opening its respective hollow body, and a movable element connecting its respective pivotable cover to its respective longitudinal portion at a first edge of the pivotable cover, and wherein the longitudinal portion of each hollow body is integrally formed on the housing and the pivotable cover runs along the longitudinal axis of the drive shaft or return shaft, wherein the pivotable cover further comprises a second edge opposed to the first edge, the second edge of the pivotable cover comprising a projection that guides and applies tension to the roller-type louver when the pivotable cover is in a closed position.