DE202023100756U1 - Air vent with adjustable air outlet direction - Google Patents

Abstract

Air vent (10) with an adjustable air outlet direction (9), with a flow channel (1) which has an air inlet opening (2) and an air outlet opening (3) essentially opposite the air inlet opening (2), an air flow (15) through the air inlet opening ( 2) can flow into the flow duct (1) and out through the air outlet opening (3), with at least one first lamella (5) which can be pivoted about a first pivot axis (4) relative to the flow duct (1) for guiding the air flow (15) and with at least one second lamella (7) which can be pivoted relative to the flow channel (1), the second pivot axis (6) of which runs obliquely or perpendicularly to the first pivot axis (4), with a single, in particular electromotive or manual drive (8) and a coupling device (12) are provided, characterized in that the coupling device (12) comprises a cam wheel (14) which is operatively connected to the drive (8) preferably via a rotatably mounted drive element (13), in particular a bevel gear wheel. with cams (20) forming a cam contour for setting different positions of the first and second slats (5, 7).

Description

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

Air vents can be used, for example, in vehicles, in particular motor vehicles, and are generally used to regulate the air flow flowing out of an air outlet opening in the horizontal and/or vertical direction. The air vent can be arranged, for example, in the instrument panel of a motor vehicle.

The use of such air vents is conceivable not only in the vehicle area but also in fans, air conditioning systems, for example in buildings or other areas in which the air flow can be adjusted in a targeted manner.

Various devices and methods for adjusting an air flow are known from the prior art. In known air vents, vertically and horizontally aligned air guiding elements or slats can be arranged one behind the other. As a rule, both the horizontally running slats and the vertically running slats can be pivoted separately or together via an adjustment mechanism in order to adjust the direction of the outflowing air.

From the DE 10 2021 119 416 A1 a control mechanism for kinematics in the vehicle interior is known. The control mechanism has a base body, a control link and at least two driven elements. A sliding block element with two degrees of freedom relative to the base body is guided through the control link by alternating movements in two opposite directions of the first degree of freedom and successively comes into contact with the first and/or second driven element. In order to implement such a control mechanism as simply as possible, it is proposed that rotary movements should be used instead of translatory movements.

In the DE 10 2021 106 582 A1 describes a drive device for independently controlling at least two devices by means of a single drive unit, having at least one drive unit, a first transmission unit, at least one first guide element and a first stationary control element, which has a first gate arrangement with a shift gate. The at least one first guide element can be displaced via the first transmission unit by the drive unit within the shift gate of the first gate arrangement, with at least one guide track being 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, with the first transmission members each being connected or connectable to the devices assigned to them.

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

The DE 10 2015 101 254 A1 relates to a drive device for adjusting at least two devices.

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

A disadvantage of the known air vents is the complex structure with the complex kinematics.

Proceeding from the disadvantages described above, the invention is based on the object of specifying an improved air vent which has a simple structure and a particularly comfortable pivoting of the slats in a space-saving and cost-effective manner is easily possible.

This object is achieved with an air vent according to claim 1. Advantageous refinements and further developments of the invention can be found in the dependent claims.

The invention relates to an air vent with an adjustable air outlet direction, with a flow channel which has an air inlet opening and an air outlet opening which is essentially opposite the air inlet opening.

The air vent is also referred to as a nozzle or air nozzle, with the flow channel not necessarily having to have the shape of a classic nozzle with a narrowing flow cross section. In particular, it is possible to be able to deflect the air jet in the installed position of the air vent both in the vertical direction and in the horizontal direction by means of exactly one single actuator.

An air stream can flow in through the air inlet opening into the flow channel and out through the air outlet opening.

Furthermore, at least one first slat, e.g. horizontal slat, which can be pivoted about a first pivot axis relative to the flow duct, is provided for guiding the air flow and at least one second slat, e.g. vertical slat, which can be pivoted relative to the flow duct, the second pivot axis of which runs obliquely or perpendicularly to the first pivot axis.

This means in particular that the first pivot axis runs perpendicular to an imaginary or virtual plane, with the second pivot axis running obliquely or parallel to the plane or lying in the plane.

The at least one first lamella can be pivoted, for example, in a first pivoting range between two end positions or end positions delimiting the pivoting range. The at least one second lamella can be pivoted, for example, in a second pivoting range about the second pivot axis relative to the flow channel between two end positions or positions.

A single or individual, in particular electric motor or manual, drive and a coupling device are provided for the independent adjustment of the slats. The drive can preferably be embodied as an electric actuator or actuator or as an electrically operable actuator or actuator, for example as an electric motor. Alternatively, however, it can also be designed as a manually operated knurled wheel, lever, slide lever or pull rod or toothed rack.

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 particularly comfortable and in particular automatically , Adjusted, for example, by means of a regulation or control, that is, can be pivoted.

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 therefore 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 from can flow out of the flow channel and, for example, into the interior of the motor vehicle or into a building.

According to the invention, the coupling device has a cam wheel which is operatively connected to the drive, preferably via a rotatably mounted drive element, in particular a bevel gear, with cams forming a cam contour for setting different positions of the first and second slats. However, it is also conceivable that the drive acts directly, i.e. directly on the cam wheel. The cams can be designed as rounded projections.

The air flow flowing out of the air vent, in particular out of the flow duct, is directed or deflected or deflected in a particularly advantageous manner and in particular as required by means of the lamellae. The air vent according to the invention makes it possible to implement nozzle kinematics that have a particularly simple and therefore space-saving and cost-effective design and at the same time enable a particularly advantageous deflection of the air stream flowing out of the air vent.

According to a first advantageous embodiment of the invention, the first and/or second slats are coupled to a respective control lever for controlling the slats. In particular, the cams of the cam wheel can act, preferably directly, on the control levers for setting different positions of the first and second slats. This reduces the need for components and realizes a compact design.

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

Alternatively or additionally, it can be provided that the cams of the cam wheel act on a preferably spring-loaded second sliding element that is operatively connected to the second lamellae, in order to pivot the second lamellae about the second pivot axis relative to the flow channel. In this way, an effective and targeted control of the air flow is realized with only a few components. As a result, the transmission of the movement of the cam wheel to the slats can be maintained exactly, for example a position at 0° and at 180°.

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

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.

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

The at least one first slat belongs, for example, to a first row of slats, which can have the first slat and further slats or at least one further slat. The slats of the first row of slats are arranged in succession or one behind the other, for example, along a particularly straight first direction, with the previous and following statements relating to the first slat also being readily applicable to the other further slats of the first row of slats and vice versa.

Alternatively or additionally, the at least one second slat can belong to a second row of slats, which can have the second slat and several other slats or at least one further slat. The slats of the second row of slats are arranged in succession or one behind the other, for example, along a second direction that runs obliquely or perpendicularly to the first direction and, in particular, in a straight line, it being possible for the previous and following statements regarding the second slat to be readily applied to the other further slats of the second row of slats and vice versa.

In a particularly advantageous embodiment of the invention, it is provided that by means of the cam wheel driven by the drive, due to its cam contour, 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, while a relative to the flow channel and through the drive-induced pivoting of the other slat about its pivot axis is omitted.

This means in particular that, for example, the first slat can be pivoted or is pivoted by means of the drive about the first pivot axis relative to the flow channel, while the second slat is not pivoted about the flow channel by means of the drive and about the second pivot axis.

Alternatively or additionally, it is conceivable that the second slat can be or is pivoted by the drive about the second pivot axis relative to the flow channel, while the first slat is not pivoted by the drive and about the first pivot axis.

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

Since both the at least one first slat and the at least one second slat can be pivoted by means of 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.

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.

It has been shown to be particularly advantageous that an output shaft of the drive drives an output gear wheel, in which the drive element coupled to the cam wheel, for example a bevel gear wheel, engages to adjust the slats. Alternatively, the driver can drive the cam wheel directly, i.e. no output gear is provided, making the structure even more compact.

In order to be able to keep the 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 at an angle, preferably in the bisecting line between the first and second pivot axes, relative to the output gear.

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.

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.

In particular, it has proven particularly advantageous that, due to the design of the cam contour of the cam wheel, when the cam wheel rotates by approx. 180° starting from an initial position, the first slats have at least one, preferably three, static positions, for example the "top" and "middle" positions. or "down" and remain there while the second slats perform a full pivoting motion in each of these static positions, with rotation of the cam wheel from about 181° to about 360°, the second slats at least one static position, preferably three reach and remain in static positions, such as left, center, or right, while the first slats perform a full swing in each of these positions.

In a particularly advantageous embodiment of the invention, at least one of the control levers has teeth between two lever arms of the control lever, which leads to uniform power transmission, especially compared to a pin known from the prior art, which is guided in a slot.

In a particularly advantageous embodiment of the invention, it is provided that the cam wheel and the first and/or the second sliding element are coupled to one another, in particular that the cam wheel has a first and/or a second groove in which the first and/or the second sliding element , Is or 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. In this case, the springs could be omitted and the structure becomes more compact.

According to a particularly advantageous embodiment of the invention, at least one of the sliding elements has a resilient pressure piece for resilient mounting. These pressure pieces allow the control levers to deviate in the opposite direction of action of the first or second spring if the air vent is misused. In this way, in the event of undesired manual intervention directly in the slats due to improper use (so-called misuse), the kinematics and the drive can be prevented from being destroyed or damaged.

Further goals, advantages, features and application possibilities of the present invention result from the following description of an exemplary embodiment with reference to the drawing. All the features described and/or illustrated form the subject matter of the present invention, either alone or in any meaningful combination, even independently of their summary in the claims or their back-reference.

• 1 einen Luftausströmer mit einstellbarer Luftaustrittsrichtung mit einem Nockenrad in perspektivischer Darstellung,
• 2 den Luftausströmer gemäß 1 in einer weiteren perspektivischen Darstellung,
• 3 eine Detailansicht des Luftausströmers gemäß 2 und
• 4 eine weitere Detailansicht des Luftausströmers.

Some of them show schematically:

• 1 an air vent with adjustable air outlet direction with a cam wheel in a perspective view,
• 2 according to the air vent 1 in another perspective view,
• 3 a detailed view of the air vent according to FIG 2 and
• 4 another detailed view of the air vent.

Components that are the same or have the same effect are provided with reference symbols in the following figures of the drawing based on an embodiment in order to improve readability.

1 shows an air vent 10 with adjustable air outlet direction 9 in a perspective view. Also visible is a flow channel 1 which has an air inlet opening 2 and an air outlet opening 3 which is essentially opposite the air inlet opening 2 .

The 2 shows the air vent 10 according to FIG 1 in a further perspective view, where a drive housing and a front panel have been hidden there for better clarity.

The 3 and 4 show detailed views of the air vent.

An air stream 15 flows through the air inlet opening 2 into the flow channel 1 and through the air outlet opening 3 .

Also off 1 several first slats 5 for guiding the air flow 15, which can be pivoted about a first pivot axis 4 relative to the flow channel 1, emerge. These slats 5 can also be referred to as horizontal slats.

A plurality of second lamellae 7 which can be pivoted relative to the flow channel 1 can also be seen, the second pivot axis 6 of which in the present case runs approximately perpendicular to the first pivot axis 4 of the first lamellae 5 . These slats 7 can be referred to as vertical slats in the present embodiment. In other words ver 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.

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

The first slats 5 can be pivoted, for example, in a first pivoting range between two end positions or end positions that limit the pivoting range. The second lamellae 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 positions.

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

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 particularly conveniently and in particular automatically, for example by means of a Regulation or control can be pivoted.

According to 1 and 2 and 3 the coupling device 12 has a cam wheel 14 operatively connected to the drive 8 via a rotatably mounted drive element 13, here a bevel gear, with cams 20 for setting different positions of the first and second slats 5, 7. These cams 20 form a cam contour of the cam wheel 14.

The cam wheel 14 can be made of plastic or metal. It is also conceivable that it essentially consists of slippery plastic.

Like in particular 3 and 4 shows, the first 5 and/or second slats 7 are coupled to a respective control lever 18, 19 for controlling the slats 5, 7. In an embodiment variant that is not shown, the cams 20 of the cam wheel 14 can act, preferably directly, on the control levers 18, 19 for setting different positions of the first and second slats 5, 7.

The 3 and 4 further show that at least one of the control levers 18, 19 has teeth 11 between two lever arms. This leads to an even power transmission.

Like those in particular 4 shows, the cam wheel 14 acts on a first sliding element 16, which is spring-loaded in the present exemplary embodiment. This sliding element 16 is operatively connected to the first lamellae 5 in order to pivot the first lamellae 5 about the first pivot axis 4 relative to the flow channel 1 .

In the present 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 lamellae 7 , in order to pivot the second lamellae 7 about the second pivot axis 6 relative to the flow channel 1 .

In other words, a movement of the cam wheel 14 by the drive 8 causes the first and second slats 5, 7 to be adjusted independently.

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 or second sliding element 17 for pivoting the first 5 and second slats 7.

How from the 2 , 3 and 4 As can further be seen, 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 to a second spring 23 . This ensures that the sliding elements 16, 17 are always in contact with the cam contour of the cam wheel 14. Furthermore, this spring coupling makes it possible for the control levers 18, 19 to deviate in one direction in the event of an unintentional intervention in the slats (misuse). Due to resilient pressure pieces 24, the control levers 18, 19 can also deviate in a different direction if used improperly.

How from the 2 , 3 and 4 shows, the two sliding elements 16, 17 each have a resilient pressure piece 24, which allow the control levers 18, 19 to deviate in the opposite direction of action of the first 22 and second spring 23 in the event of misuse. In this way, in the event of an undesired manual intervention directly in the slats 5, 7 due to improper use, for example a manual adjustment of the slats 5, 7 by a user, ie by touching and moving the slats 5, 7, ver be prevented that the kinematics and the drive 8 is destroyed or damaged. Because of the spring-loaded coupling, the slats 5, 7 can be moved manually - to a certain extent - if used improperly.

In addition, 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 a pivoting of the other lamella 7, 5 about its pivot axis 6, 4, which takes place relative to the flow channel 1 and is caused by the drive 8, is omitted.

The slats 5, 7 can thus be moved into numerous positions independently of one another in order to realize an air flow 15 in almost any desired direction. It is therefore possible to set different air outlet directions in which the air flow 15 can flow out of the flow channel 1 and, for example, into the interior of the motor vehicle or into a building.

Of course, it is also conceivable within the meaning of the invention for the lamellae 5, 7 to be 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.

The 1 further clarifies that an output shaft of the drive 8 drives an output gear 21, in which the drive element coupled to the cam wheel 14, which in the present case is designed as a bevel gear 13, engages for an adjustment of the slats 5, 7. In the present case, the cam wheel 14 and the bevel gear wheel 13 can also be designed in one piece. It is also conceivable that the drive 8 drives the cam wheel 14 directly.

How from the 1-4 further shows that the drive element 13 is arranged obliquely, preferably in the bisecting line between the first 4 and second pivot axis 6, relative to the driven gear 21.

In the present case, the cam wheel 14 has sub-areas T1, T2, T3, with the adjustment of the cam wheel 14 in one of the sub-areas one of the slats 5, 7 remaining in a static position, while the other slat 7, 5 is pivoted and/or wherein in one another part one of the slats 5, 7 is pivoted into a static position, while the other slats 7, 5 is not pivoted.

In the present case, when the cam wheel 14 rotates by approximately 180° 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 are in each of these positions perform a full pivoting movement.

In other words, for example, the horizontal slat (first slat) 5 can be adjusted to the "up" position and remain there, while the vertical slat (second slat) 7 performs a full 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.

Furthermore, it is also possible that the vertical slats 7 reach a position such as "left", "middle" or "right" and remain there, while the horizontal slats 5 perform a complete pivoting movement, i.e. from end stop to end stop, in each of these positions .

Reference List

1

flow channel

2

air inlet opening

3

air outlet opening

4

first pivot axis

5

first slat (horizontal)

6

second pivot axis

7

second slat (vertical)

8th

drive

9

air outlet direction

10

air vent

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

cam

21

output gear

22

first spring

23

second spring

24

resilient pressure piece

T1, T2

sub-areas

T3

sub-areas

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102021119416 A1 [0005]
• DE 102021106582 A1 [0006]
• DE 102018005002 A1 [0007]
• DE 102015101254 A1 [0008]
• DE 102020101678 A1 [0009]

Claims (14)

Air vent (10) with an adjustable air outlet direction (9), with a flow channel (1) which has an air inlet opening (2) and an air outlet opening (3) essentially opposite the air inlet opening (2), an air flow (15) through the air inlet opening ( 2) can flow into the flow duct (1) and out through the air outlet opening (3), with at least one first lamella (5) which can be pivoted about a first pivot axis (4) relative to the flow duct (1) for guiding the air flow (15) and with at least one second lamella (7) which can be pivoted relative to the flow channel (1), the second pivot axis (6) of which runs obliquely or perpendicularly to the first pivot axis (4), with a single, in particular electromotive or manual drive (8) and a coupling device (12) are provided, characterized in that the coupling device (12) comprises a cam wheel (14) which is operatively connected to the drive (8) preferably via a rotatably mounted drive element (13), in particular a bevel gear wheel. with cams (20) forming a cam contour for setting different positions of the first and second slats (5, 7). Air vent (10) after claim 1 , characterized in that the first (5) and/or second slats (7) are coupled to a respective control lever (18, 19) for controlling the slats (5, 7), in particular that the cams (20) of the cam wheel ( 14), preferably directly, on the control levers (18, 19) for setting different positions of the first and second slats (5, 7). Air vent (10) after claim 1 or 2 , characterized in that the cams (20) of the cam wheel (14) act on a preferably spring-loaded first sliding element (16) which is operatively connected to the first lamellae (5) in order to move the first lamellae (5) around 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 preferably spring-loaded second sliding element (17) that is operatively connected to the second lamellae (7) in order to move the second lamellae (7) to pivot about the second pivot axis (6) relative to the flow channel (1). Air vent (10) after claim 3 , characterized in that the first (5) and/or second slats (7) are connected to the first (16) or second sliding element (17) by means of the respective control lever (18, 19) for pivoting the first and/or second slats ( 5, 7) are coupled. Air vent (10) according to one of the preceding claims, characterized in that the first sliding element (16) for the first slats (5) is equipped with a first spring (22) and/or that the second sliding element (17) for the second slats (7 ) is coupled to a second spring (23). Air vent (10) according to one of the preceding claims, characterized in that a plurality of first slats (5) and/or a plurality of second slats (7) are each coupled to one another for synchronous movement. Air vent (10) according to one of the preceding claims, characterized in that by means of the cam wheel (14) driven by the drive (8), due to its cam contour, one of the first or second lamellae (5, 7) can be rotated relatively about its pivot axis (4, 6). to the flow channel (1) and relative to the other lamella (7, 5), while relative to the flow duct (1) and caused by the drive (8) pivoting of the other lamella (7, 5) about its pivot axis (6 , 4) omitted. Air vent (10) according to one of the preceding claims, characterized in that an output shaft of the drive (8) drives an output gear (21) into which the drive element coupled to the cam wheel (14), in particular a bevel gear (13) for an adjustment of the slats (5, 7) engages or that the drive (8) drives the cam wheel (14) directly. Air vent (10) according to one of the preceding claims, characterized in that the drive element (13) is arranged obliquely, preferably in the bisecting line between the first (4) and second pivot axis (6), opposite the driven gear (21). Air vent (10) according to one of the preceding claims, characterized in that the cam contour of the cam wheel (14) has partial areas (T1, T2, T3), with adjustment of the cam wheel (14) in one of the partial areas one of the lamellae (5, 7 ) remains in a static position while the other slat (7, 5) is pivoted and/or wherein one of the slats (5, 7) is pivoted into a static position in another partial area of the cam contour, while the other slat (7, 5) is not pivoted. Air vent (10) according to any one of the preceding claims, characterized in that due to the configuration of the cam contour of the cam wheel (14) upon rotation of the cam wheel (14) by about 180 ° starting from a Initial position, the first slats (5) reach at least one, preferably three, static positions, for example "top", "middle", "bottom", and remain there, while the second slats (7) perform a full pivoting movement in each of these positions, wherein When the cam wheel (14) rotates from about 181° to about 360°, the second lamellae (7) reach at least one position, preferably three static positions, for example “left”, “middle”, “right” and remain there , while the first slats (5) perform a full pivoting movement in each of these positions. Air vent (10) according to one of the preceding claims, characterized in that at least one of the control levers (18, 19) has teeth (11) between two lever arms of the respective control lever (18, 19). Air vent (10) according to one of the preceding claims, characterized in that the cam wheel (14) and the first and/or the second sliding element are coupled to one another, in particular that the cam wheel (14) has a first and/or a second groove in which the first and/or the second sliding element is/are guided, preferably by means of a bolt. Air vent (10) according to one of the preceding claims, characterized in that at least one of the sliding elements 16, 17 has a resilient pressure piece 24 for resilient mounting.

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