Air vent with adjustable air outlet direction

Abstract

Air vent (10) with an adjustable air outlet direction (9), comprising a flow channel (1) having an air inlet opening (2) and an air outlet opening (3) substantially opposite the air inlet opening (2), wherein an air flow (15) can flow into the flow channel (1) through the air inlet opening (2) and out through the air outlet opening (3), comprising at least one first slat (5) pivotable about a first pivot axis (4) relative to the flow channel (1) for guiding the air flow (15), and comprising at least one second slat (7) pivotable relative to the flow channel (1), the second pivot axis (6) of which extends obliquely or perpendicularly to the first pivot axis (4), wherein a single electromotive or manual drive (8) and a coupling device (12) are provided for the independent adjustment of the slats (5, 7), characterized in thatthat the coupling device (12) has a cam wheel (14) operatively connected to the drive (8) via a rotatably mounted drive element (13) which is designed as a bevel gear, with cams (20) forming a cam contour for adjusting various positions of the first and second slats (5, 7), wherein, due to the design of the cam contour of the cam wheel (14), upon rotation of the cam wheel (14) by approximately 180° starting from an initial position, the first slats (5) reach at least one static position and remain there, while the second slats (7) execute a complete pivoting movement in each of these positions, and wherein upon rotation of the cam wheel (14) from approximately 181° to approximately 360°, the second slats (7) reach at least one static position and remain there, while the first slats (5) execute a complete pivoting movement in each of these positions.

Description

[0001] The invention relates to an air vent, also called a fresh air grill, with adjustable air outlet direction according to the preamble of claim 1.

[0002] Air vents can be used, for example, in vehicles, especially motor vehicles, and are generally used to regulate the air flow exiting an air outlet in a horizontal and / or vertical direction. The air vent can be located, for example, in the instrument panel of a motor vehicle.

[0003] In addition to the vehicle sector, the use of such air vents is also conceivable for fans, air conditioning systems, for example in buildings or other areas where the air flow can be specifically adjusted.

[0004] Various devices and methods for adjusting airflow are known from the prior art. In known air vents, vertically and horizontally oriented air guide elements or slats can be arranged one behind the other. Typically, an adjustment mechanism allows both the horizontally and vertically oriented slats to be pivoted separately or together to adjust the direction of the outflowing air.

[0005] DE 10 2021 119 416 A1 discloses a control mechanism for a kinematic system in a vehicle interior. The control mechanism comprises a base body, a control link, and at least two output elements. A sliding block element with two degrees of freedom relative to the base body is guided by alternating movements in two opposite directions of the first degree of freedom through the control link, thereby successively coming into contact with the first and / or second output element. In order to implement such a control mechanism as simply as possible, it is proposed that rotary movements be used instead of translational movements.

[0006] DE 10 2021 106 582 A1 describes a drive device for independently controlling at least two devices by means of a single drive unit, comprising at least one drive unit, a first transmission unit, at least one first guide element, and a first stationary control element having a first gate arrangement with a shift gate. The at least one first guide element can be displaced within the shift gate of the first gate arrangement by the drive unit via the first transmission unit, wherein at least one guide track is provided in the shift gate for each device to be controlled, in which at least one second guide element is arranged.The second guide elements are connected to first transmission members which are rotatably mounted on the first stationary control element and which can be set in rotation via the second guide elements in accordance with the displacement of the at least one first guide element, wherein the first transmission members are each connected or connectable to the devices assigned to them.

[0007] For example, an air vent for a motor vehicle is also known from DE 10 2018 005 002 A1.

[0008] DE 10 2015 101 254 B3 relates to a drive device for adjusting at least two devices.

[0009] From DE 10 2020 101 678 A1 an adjusting device for changing a mass flow in a motor vehicle is known.

[0010] A motor-driven ventilation device for a vehicle is known from DE 10 2018 220 352 A1.

[0011] WO 2020 / 172 098 A1 relates to a drive unit for operating several functions of a ventilation system or an air distribution system.

[0012] The disadvantage of the known air vents is the complex structure with the complex kinematics.

[0013] Based on the disadvantages described above, the object of the invention is to provide an improved air vent which has a simple structure and which allows particularly comfortable pivoting of the slats in a space-saving and cost-effective manner.

[0014] This object is achieved with an air vent according to claim 1. Advantageous embodiments and further developments of the invention can be found in the subclaims.

[0015] The invention relates to an air vent with adjustable air outlet direction, with a flow channel which has an air inlet opening and an air outlet opening substantially opposite the air inlet opening.

[0016] The air vent is also referred to as a nozzle or air jet, although the flow channel does not necessarily have to be shaped like a classic nozzle with a narrowing flow cross-section. In particular, it is possible to deflect the air jet in both vertical and horizontal directions using a single actuator in the installed position of the air vent.

[0017] An air flow can enter the flow channel through the air inlet opening and exit through the air outlet opening.

[0018] Furthermore, at least one first slat, for example a horizontal slat, is provided for guiding the air flow, which can be pivoted about a first pivot axis relative to the flow channel, and at least one second slat, for example a vertical slat, is provided which can be pivoted relative to the flow channel and whose second pivot axis runs obliquely or perpendicularly to the first pivot axis.

[0019] This means in particular that the first pivot axis runs perpendicular to an imaginary or virtual plane, whereby the second pivot axis runs obliquely or parallel to the plane or lies in the plane.

[0020] The at least one first slat is pivotable, for example, in a first pivoting range between two end positions or end positions that delimit the pivoting range. The at least one second slat is pivotable, for example, in a second pivoting range about the second pivot axis relative to the flow channel between two end positions or end positions.

[0021] For independent adjustment of the slats, a single drive, particularly an electric motor or manual drive, and a coupling device are provided. The drive can preferably be designed as an electric actuator or an electrically operated actuator, for example, an electric motor. Alternatively, it can also be designed as a manually operated knurled wheel, lever, sliding lever, or pull or toothed rack.

[0022] In other words, both the at least one first slat and the at least one second slat can be pivoted about the respective pivot axes by means of the drive and thus, for example, electrically or by an electric motor, so that the slats, which are preferably designed to be inherently rigid or dimensionally stable, can be adjusted, i.e. pivoted, particularly conveniently and in particular automatically, for example by means of a control or controller.

[0023] Since the first slat and the second slat or the rows of slats can be driven via the coupling device by means of the drive and can thus be pivoted, and since the slats can be pivoted relative to one another by means of the drive via the coupling device, different air outlet directions can be set in which the air flow can flow out of the flow channel and, for example, into the interior of the motor vehicle or into a building.

[0024] According to the invention, the coupling device comprises a cam wheel operatively connected to the drive, preferably via a rotatably mounted drive element, in particular a bevel gear, with cams forming a cam contour for adjusting various positions of the first and second slats. However, it is also conceivable for the drive to act directly, i.e., immediately, on the cam wheel. The cams can be designed as rounded projections.

[0025] The air flow flowing out of the air vent, in particular from the flow channel, is directed, deflected, or deflected particularly advantageously and, in particular, as needed by means of the louvres. The air vent according to the invention enables the realization of a nozzle kinematics that has a particularly simple and thus space-saving and cost-effective design, while simultaneously enabling a particularly advantageous deflection of the air flow flowing out of the air vent.

[0026] According to a first advantageous embodiment of the invention, the first and / or second vanes are coupled to a respective control lever for controlling the vanes. In particular, the cams of the cam wheel can act, preferably directly, on the control levers for adjusting various positions of the first and second vanes. This reduces the need for components and achieves a compact design.

[0027] According to an advantageous variant of the invention, the cams of the cam wheel act on a preferably spring-loaded first sliding element operatively connected to the first slats in order to pivot the first slats about the first pivot axis relative to the flow channel.

[0028] Alternatively or additionally, the cams of the cam wheel can act on a second sliding element, preferably spring-loaded, that is operatively connected to the second slats, in order to pivot the second slats about the second pivot axis relative to the flow channel. In this way, effective and targeted control of the air flow is achieved with only a few components. This allows the transmission of the movement of the cam wheel to the slats to be precisely maintained, for example, a position at 0° and 180°.

[0029] According to an advantageous variant of the invention, the first and / or second slats can be coupled by means of the respective control lever to the first or second sliding element for pivoting the first and / or second slats.

[0030] In particular, it can be provided that the first sliding element for the first slats is coupled to a first spring and / or that the second sliding element for the second slats is coupled to a second spring.

[0031] According to an advantageous development of the invention, a plurality of first slats and / or a plurality of second slats are coupled to one another for a synchronous movement.

[0032] The at least one first slat belongs, for example, to a first slat row, which may include the first slat and further slats or at least one further slat. The slats of the first slat row are arranged, for example, consecutively or one behind the other along a first, particularly straight, direction. The previous and following statements regarding the first slat can also be readily applied to the other, further slats of the first slat row, and vice versa.

[0033] Alternatively or additionally, the at least one second slat can belong to a second slat row, which can comprise the second slat and several further slats or at least one further slat. The slats of the second slat row are arranged, for example, in a second direction that is oblique or perpendicular to the first direction and, in particular, straight, in succession or one behind the other. The previous and following statements regarding the second slat can also be readily applied to the other, further slats of the second slat row, and vice versa.

[0034] In a particularly advantageous embodiment of the invention, it is provided that by means of the cam wheel driven by the drive, one of the first or second slats can be pivoted about its pivot axis relative to the flow channel and relative to the other slat due to its cam contour, while pivoting of the other slat about its pivot axis relative to the flow channel and caused by the drive is avoided.

[0035] This is to be understood in particular that, for example, the first slat is pivotable or is pivoted relative to the flow channel about the first pivot axis by means of the drive, while pivoting of the second slat about the flow channel by means of the drive and about the second pivot axis does not occur.

[0036] Alternatively or additionally, it is conceivable that the second slat is pivotable or is pivoted about the second pivot axis relative to the flow channel by means of the drive, while pivoting of the first slat about the first pivot axis caused by the drive is omitted.

[0037] As a result, the air flow can be directed, guided or steered particularly advantageously by means of the slats, although the slats can be or are coupled via the coupling device to the exactly one drive common to the slats.

[0038] Since both the at least one first slat and the at least one second slat can be pivoted by means of the exactly one drive common to the slats, the number of parts, the installation space requirement, the weight and the costs of the air vent can be kept to a particularly low level.

[0039] Of course, it is also conceivable within the meaning of the invention that the slats can be pivoted together or simultaneously about the pivot axes relative to the flow channel, for example by means of the drive via the coupling device.

[0040] It has proven particularly advantageous for an output shaft of the drive to drive an output gear, which engages the drive element coupled to the cam gear, for example, a bevel gear for adjusting the vanes. Alternatively, the drive can drive the cam gear directly, i.e., no output gear is provided, making the design even more compact.

[0041] In order to be able to keep the installation space requirement, the costs and the weight of the air vent particularly low, it is provided in a further embodiment of the invention that the drive element is arranged obliquely, preferably in the angle bisector between the first and second pivot axes, relative to the output gear.

[0042] In a particularly advantageous embodiment of the invention, the cam contour of the cam wheel has partial areas, wherein when the cam wheel is adjusted in one of the partial areas, one of the slats remains in a static position, while the other slat is pivoted.

[0043] Alternatively or additionally, it can be provided that in another partial area of the cam contour one of the slats is pivoted into a static position, while the other slat is not pivoted.

[0044] According to the invention, it has proven particularly advantageous that, due to the design of the cam contour of the cam wheel, when the cam wheel rotates by approximately 180° starting from an initial position, the first slats reach at least one, preferably three static positions, for example the "top", "middle" or "bottom" position, and remain there, while the second slats carry out a complete pivoting movement in each of these static positions, wherein when the cam wheel rotates by approximately 181° to approximately 360°, the second slats reach at least one static position, preferably three static positions, for example the "left", "middle" or "right" position, and remain there, while the first slats carry out a complete pivoting movement in each of these positions.

[0045] In a particularly advantageous embodiment of the invention, at least one of the control levers has a toothing between two lever arms of the control lever, which leads to a uniform force transmission, in particular compared to a bolt known from the prior art, which is guided in an elongated hole.

[0046] In a particularly advantageous embodiment of the invention, the cam wheel and the first and / or second sliding element are coupled to one another, in particular, the cam wheel has a first and / or second groove in which the first and / or second sliding element is / are guided, preferably by means of a bolt. If the cam wheel has a groove in which a bolt of the sliding element is guided, these could be moved back and forth. This would eliminate the need for springs, making the design more compact.

[0047] According to a particularly advantageous embodiment of the invention, at least one of the sliding elements has a spring-loaded pressure piece for spring-elastic mounting. These pressure pieces allow the control levers to deflect in the opposite direction of the first or second spring in the event of misuse of the air vent. This prevents the kinematics and drive from being destroyed or damaged in the event of unwanted manual intervention directly into the slats due to improper use (so-called misuse).

[0048] Further objects, advantages, features, and possible applications of the present invention will become apparent from the following description of an exemplary embodiment with reference to the drawing. All described and / or illustrated features, individually or in any meaningful combination, constitute the subject matter of the present invention, regardless of their summary in the claims or their interrelationship.

[0049] Some of them are shown schematically: Fig. 1 an air outlet with adjustable air outlet direction with a cam wheel in perspective view, Fig. 2 the air vent according to Fig. 1 in another perspective view, Fig. 3 a detailed view of the air vent according to Fig. 2 and Fig. 4 another detailed view of the air vent.

[0050] In the following figures of the drawing, identical or equivalent components are provided with reference numerals based on an embodiment in order to improve readability.

[0051] Fig. Figure 1 shows a perspective view of an air vent 10 with an adjustable air outlet direction 9. Also visible is a flow channel 1 having an air inlet opening 2 and an air outlet opening 3 located substantially opposite the air inlet opening 2.

[0052] The Fig. 2 shows the air outlet 10 according to Fig. 1 in another perspective view, where a drive housing and a front panel have been hidden for better clarity.

[0053] The Fig. 3 and Fig. 4 show detailed views of the air vent.

[0054] An air flow 15 flows into the flow channel 1 through the air inlet opening 2 and out through the air outlet opening 3.

[0055] Also from Fig. 1, a plurality of first louvres 5 are pivotable about a first pivot axis 4 relative to the flow channel 1 for directing the air flow 15. These louvres 5 can also be referred to as horizontal louvres.

[0056] Also visible are several second louvers 7 that can be pivoted relative to the flow channel 1, the second pivot axis 6 of which, in this case, runs approximately perpendicular to the first pivot axis 4 of the first louvers 5. These louvers 7 can be referred to as vertical louvers in the present embodiment. In other words, the first pivot axis 4 runs perpendicular to an imaginary or virtual plane, with the second pivot axis 6 running approximately parallel to the plane or lying in the plane.

[0057] In the present embodiment according to the Fig. 1 to 4, a plurality of first slats 5 and / or a plurality of second slats 7 are coupled to one another for a respective synchronous movement.

[0058] The first slats 5 can be pivoted, for example, in a first pivoting range between two end positions or end positions that delimit the pivoting range. The second slats 7 can also be pivoted, for example, in a second pivoting range about the second pivot axis 6 relative to the flow channel 1 between two end positions or end positions.

[0059] For independent adjustment of the slats 5, 7, a single, in this case electric motor drive 8 or actuator and a coupling device 12 are provided in the present embodiment. However, a manual drive (not shown) is also conceivable, for example, a manually operated knurled wheel, a lever, a sliding lever, or a pull or toothed rack.

[0060] In this way, both the first slats 5 and the second slats 7 can be pivoted about the respective pivot axes by means of the drive 8, so that the slats 5, 7, which are preferably designed to be inherently rigid or dimensionally stable, can be pivoted particularly conveniently and in particular automatically, for example by means of a control or controller.

[0061] According to Fig. 1 and Fig. 2 and Fig. 3, the coupling device 12 has a cam wheel 14, which is operatively connected to the drive 8 via a rotatably mounted drive element 13, in this case a bevel gear, and has cams 20 for adjusting various positions of the first and second slats 5, 7. These cams 20 form a cam contour of the cam wheel 14.

[0062] The cam wheel 14 can be made of plastic or metal. It is also conceivable that it consists essentially of a sliding plastic.

[0063] As is particularly evident from Fig. 3 and Fig. As can be seen from Figure 4, the first 5 and / or second slats 7 are coupled to a respective control lever 18, 19 for controlling the slats 5, 7. In a variant not shown, the cams 20 of the cam wheel 14 can act, preferably directly, on the control levers 18, 19 for setting various positions of the first and second slats 5, 7.

[0064] The Fig. 3 and Fig. 4 further shows that at least one of the control levers 18, 19 has a toothing 11 between two lever arms. This results in a uniform power transmission.

[0065] As in particular the Fig. As shown in Figure 4, the cam wheel 14 acts on a first sliding element 16, which is spring-loaded in the present embodiment. This sliding element 16 is operatively connected to the first slats 5 in order to pivot the first slats 5 about the first pivot axis 4 relative to the flow channel 1.

[0066] In this case, the cam wheel 14 also acts on a second sliding element 17, which is also spring-loaded and is operatively connected to the second slats 7, in order to pivot the second slats 7 about the second pivot axis 6 relative to the flow channel 1.

[0067] In other words, a movement of the cam wheel 14 by the drive 8 causes an independent adjustment of the first and second slats 5, 7.

[0068] In the present case, the first 5 and second slats 7 are coupled by means of the respective control lever 18, 19 to the first 16 and second sliding element 17 for pivoting the first 5 and second slats 7.

[0069] As can be seen from the Fig. 2, Fig. 3 and Fig. As further shown in Figure 4, the first sliding element 16 for the first slats 5 is coupled to a first spring 22, and the second sliding element 17 for the second slats 7 is coupled to a second spring 23. This ensures that the sliding elements 16, 17 always rest against the cam contour of the cam wheel 14. Furthermore, this spring coupling makes it possible for the control levers 18, 19 to deflect in one direction in the event of unintentional engagement with the slats (misuse). Due to spring-loaded pressure pieces 24, the control levers 18, 19 can also deflect in another direction in the event of misuse.

[0070] As can be seen from the Fig. 2, Fig. 3 and Fig. 4, the two sliding elements 16, 17 each have a spring-loaded pressure piece 24, which, in the event of misuse, enables the control levers 18, 19 to deflect in the opposite direction of action of the first 22 or second spring 23. In this way, in the event of unwanted manual intervention directly into the slats 5, 7 due to improper use, for example manual adjustment of the slats 5, 7 by a user, i.e. by touching and moving the slats 5, 7, the kinematics and the drive 8 can be prevented from being destroyed or damaged. This is because, due to the spring-loaded coupling, the slats 5, 7 can be moved manually - to a certain extent - in the event of improper use.

[0071] Furthermore, it is particularly possible that by means of the cam wheel 14 driven by the drive 8, one of the first or second slats 5, 7 is pivoted about its pivot axis 4, 6 relative to the flow channel 1 and relative to the other slat 7, 5, while pivoting of the other slat 7, 5 about its pivot axis 6, 4 relative to the flow channel 1 and caused by the drive 8 is omitted.

[0072] The slats 5, 7 can thus be moved independently of one another into numerous positions to create an air flow 15 in virtually any desired direction. Different air outlet directions can thus be set, in which the air flow 15 can exit the flow channel 1 and flow into, for example, the interior of the vehicle or into a building.

[0073] Of course, it is also conceivable within the meaning of the invention that the slats 5, 7 are pivoted together or simultaneously about the pivot axes 4, 6 relative to the flow channel 1, for example by means of the drive 8 via the coupling device 12.

[0074] The Fig. Figure 1 further illustrates that an output shaft of the drive 8 drives an output gear 21, into which the drive element coupled to the cam gear 14, which in this case is designed as a bevel gear 13, engages to adjust the slats 5, 7. The cam gear 14 and the bevel gear 13 can also be formed as a single piece in this case. It is also conceivable for the drive 8 to drive the cam gear 14 directly.

[0075] As can be seen from the Fig. 1-4, the drive element 13 is arranged obliquely, preferably in the bisector between the first 4 and second pivot axis 6, relative to the output gear 21.

[0076] In the present case, the cam wheel 14 has partial areas T1, T2, T3, wherein upon adjustment of the cam wheel 14 in one of the partial areas, one of the slats 5, 7 remains in a static position, while the other slat 7, 5 is pivoted and / or wherein in another partial area, one of the slats 5, 7 is pivoted into a static position, while the other slat 7, 5 is not pivoted.

[0077] In the present case, when the cam wheel 14 rotates by approximately 180° starting from an initial position, the first slats 5 reach at least one, preferably three positions, for example “top”, “middle”, “bottom”, in which the second slats 7 carry out a complete pivoting movement in each of these positions.

[0078] In other words, for example, the horizontal slat (first slat) 5 can be adjusted to the "top" position and remain there, while the vertical slat (second slat) 7 performs a complete pivoting movement, i.e., from one end stop to the other. Such a movement of the vertical slat 7 is also possible in other positions, for example, in the "middle" or "bottom" position.

[0079] Furthermore, it is also possible for the vertical slats 7 to reach a position such as "left", "center" or "right" and remain there, while the horizontal slats 5 execute a complete pivoting movement, ie from end stop to end stop, in each of these positions. List of reference symbols 1 flow channel 2 air inlet opening 3 Air outlet opening 4 first swivel axis 5 first slat (horizontal) 6 second swivel axis 7 second slat (vertical) 8 Drive 9 Air outlet direction 10 air vents 11 Gearing 12 coupling device 13 Drive element (bevel gear) 14 Cam wheel 15 Airflow 16 first sliding element (first slats) 17 second sliding element (second slats) 18 first control lever (first slats) 19 second control lever (second slats) 20 cams 21 Output gear 22 first spring 23 second spring 24 spring pressure piece T1, T2 sub-areas T3 sub-area

Claims

[1] Air vent (10) with adjustable air outlet direction (9), with a flow channel (1) having an air inlet opening (2) and an air outlet opening (3) substantially opposite the air inlet opening (2), wherein an air flow (15) can flow into the flow channel (1) through the air inlet opening (2) and out through the air outlet opening (3), with at least one first slat (5) pivotable about a first pivot axis (4) relative to the flow channel (1) for guiding the air flow (15) and with at least one second slat (7) pivotable relative to the flow channel (1), the second pivot axis (6) of which extends obliquely or perpendicularly to the first pivot axis (4), wherein a single electromotive or manual drive (8) and a coupling device (12) are provided for the independent adjustment of the slats (5, 7), characterized byin that the coupling device (12) has a cam wheel (14) which is operatively connected to the drive (8) via a rotatably mounted drive element (13) which is designed as a bevel gear and has cams (20) forming a cam contour for setting various positions of the first and second slats (5, 7), wherein due to the design of the cam contour of the cam wheel (14), when the cam wheel (14) rotates through approximately 180° starting from an initial position, the first slats (5) reach at least one static position and remain there, while the second slats (7) carry out a complete pivoting movement in each of these positions, and wherein when the cam wheel (14) rotates through approximately 181° to approximately 360°, the second slats (7) reach at least one static position and remain there, while the first slats (5) carry out a complete pivoting movement in each of these positions. [2] Air vent (10) according to claim 1, characterized bythat the first (5) and / or second slats (7) are coupled to a respective control lever (18, 19) for controlling the slats (5, 7), wherein the cams (20) of the cam wheel (14) act directly on the control levers (18, 19) for setting different positions of the first and second slats (5, 7). [3] Air vent (10) according to claim 1 or 2, characterized by that the cams (20) of the cam wheel (14) act on a first sliding element (16) which is operatively connected to the first slats (5) in order to pivot the first slats (5) about the first pivot axis (4) relative to the flow channel (1) and / or that the cams (20) of the cam wheel (14) act on a second sliding element (17) which is operatively connected to the second slats (7) in order to pivot the second slats (7) about the second pivot axis (6) relative to the flow channel (1). [4] Air vent (10) according to claim 3, characterized bythat the first sliding element (16) is spring-loaded and / or the second sliding element (17) is spring-loaded. [5] Air vent (10) according to claim 3 or 4, characterized by that the first (5) and / or second slats (7) are coupled by means of the respective control lever (18, 19) to the first (16) or the second sliding element (17) for pivoting the first and / or second slats (5, 7). [6] Air vent (10) according to one of claims 3 to 5, characterized by that the first sliding element (16) for the first slats (5) is coupled to a first spring (22) and / or that the second sliding element (17) for the second slats (7) is coupled to a second spring (23). [7] Air vent (10) according to one of the preceding claims, characterized by that a plurality of first slats (5) and / or a plurality of second slats (7) are coupled to one another for synchronous movement. [8] Air vent (10) according to one of the preceding claims, characterized by that by means of the cam wheel (14) driven by the drive (8) and due to its cam contour, one of the first or second slats (5, 7) can be pivoted about its pivot axis (4, 6) relative to the flow channel (1) and relative to the other slat (7, 5), while pivoting of the other slat (7, 5) about its pivot axis (6, 4) relative to the flow channel (1) and caused by the drive (8) is omitted. [9] Air vent (10) according to one of the preceding claims, characterized by that an output shaft of the drive (8) drives an output gear (21) into which the bevel gear (13) coupled to the cam wheel (14) engages for adjusting the slats (5, 7) or that the drive (8) drives the cam wheel (14) directly. [10] Air vent (10) according to claim 9, characterized bythat the drive element (13) is arranged obliquely relative to the output gear (21). [11] Air vent (10) according to claim 10, characterized by that the drive element (13) is arranged in the angle bisector between the first (4) and second pivot axis (6) opposite the output gear (21). [12] Air vent (10) according to one of the preceding claims, characterized by in that the cam contour of the cam wheel (14) has partial areas (T1, T2, T3), wherein when the cam wheel (14) is adjusted in one of the partial areas (T1, T2, T3) one of the slats (5, 7) remains in a static position, while the other slat (7, 5) is pivoted and / or wherein in another partial area (T1, T2, T3) of the cam contour one of the slats (5, 7) is pivoted into a static position, while the other slat (7, 5) is not pivoted. [13] Air vent (10) according to one of the preceding claims, characterized bythat due to the design of the cam contour of the cam wheel (14), when the cam wheel (14) rotates by approximately 180° starting from an initial position, the first slats (5) reach three static positions and remain there, while the second slats (7) carry out a complete pivoting movement in each of these positions, wherein when the cam wheel (14) rotates by approximately 181° to approximately 360°, the second slats (7) reach three static positions and remain there, while the first slats (5) carry out a complete pivoting movement in each of these positions. [14] Air vent (10) according to one of claims 2 to 13, characterized by that at least one of the control levers (18, 19) has a toothing (11) between two lever arms of the respective control lever (18, 19). [15] Air vent (10) according to one of claims 3 to 14, characterized bythat the cam wheel (14) and the first and / or the second sliding element (16, 17) are coupled to one another. [16] Air vent (10) according to claim 15, characterized by that the cam wheel (14) has a first and / or a second groove in which the first and / or the second sliding element (16, 17) is or are guided. [17] Air vent (10) according to one of claims 3 to 16, characterized by that at least one of the sliding elements (16, 17) has a resilient pressure piece (24) for spring-elastic mounting.

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