Control device comprising a roller band cassette
AssigneeBehr GmbH & Co.
InventorsDietrich Klingler, Werner Schwahn
Life of this patent
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Abstract
The invention relates to a control device (1) for controlling airflows in motor vehicles, comprised of a frame having at least one passage opening (4) and at least one controlling means, which is provided in the form of a roller louver (5) and which serves to modify the passage cross-section for the air flowing through the passage opening (4). The frame comprises a housing (2) with at least two hollow bodies (8) that are open along the longitudinal sides. These hollow bodies (8) accommodate the drive shaft (6) or the return shaft (7) for the roller louver (5), and each have a pivotal cover (8.3) for opening the respective hollow body (8). The control device (1) can be mounted inside airflow ducts of a heating and/or air-conditioning system for motor vehicles.
Claims31
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.
A heating or air conditioning system comprising:
- a control device, wherein the control device comprises:
- 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.
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, the hollow bodies each having a pivotable cover for opening the respective hollow body,
- wherein the roller-type louver is designed as an endless roller band that is guided in two layers past the at least one passage opening,
- wherein openings or cutouts are distributed on the roller band such that, when the at least one passage opening is closed, each layer of the roller band covers approximately half of the passage opening, and
- wherein the passage opening is opened by the two layers of the roller band moving in opposite directions and opening up the passage opening from center outward.
Dependencies are inferred from the claim text.