Air discharger

Abstract

This utility model relates to an air exhaust device for a vehicle, comprising: a housing including an air inlet and at least one air outlet, wherein a first blade and a second blade are disposed in the region of the outlet; and a drive mechanism having drive elements drivable in opposite directions, the drive elements being engaged with an adjusting element. The adjusting element is movable to a first driven position and at least one second driven position, wherein in the first driven position the adjusting element is engaged with the first driven element, and in the second driven position the adjusting element is engaged with the second driven element, the first driven element being operatively connected to the first blade and the second driven element to the second blade, such that the first blade and the second blade are independently deflectable in two directions of rotation. This utility model provides an air exhaust device including a first blade and a second blade, wherein the blade is adjustable in a short time and the drive mechanism has low cost and light weight.

Description

Technical Field

[0001] This utility model relates to an air exhaust device for use in vehicles. In the context of this utility model, a vehicle is a land, air, or water transport vehicle. Background Technology

[0002] In vehicle manufacturing, there is a trend towards electrically controlled interior components, such as air exhaust systems. Drive motors are not only expensive but also heavy and require significant structural space. However, in the prior art, the steering of air in the horizontal direction (V-blade) and the vertical direction (H-blade) requires separate drives. Therefore, there is a need to reduce the number of drive motors. This problem is considered in DE 10 2015 101 101 B3. Air exhaust systems are known from DE 10 2018 005002 B4 and DE 10 2014 105 273 B3, which utilize a single drive to move not only the V-blade but also the H-blade, where continuous coupling does not allow for manual movement.

[0003] For example, air exhaust systems for vehicles are known from the prior art, having a actuator for driving the movement of a first blade and a actuator for driving the movement of a second blade. The first blade allows the airflow to be deflected in the horizontal direction, and the second blade allows the airflow to be deflected in the vertical direction. The air exhaust system, for example, has separate actuators for the first and second blades.

[0004] An air exhaust device is known from the prior art, which has only one drive motor, in which the horizontal and vertical blades cannot be adjusted independently of each other. The adjustment of the blades therefore takes a relatively long time and can cause undesirable and excessive deflection movements during blade movement. Utility Model Content

[0005] The objective of this invention is to provide an air exhaust device comprising a first blade and a second blade, wherein the blades are adjustable in a short time and the actuator produces low cost and light weight.

[0006] The task is solved by an air exhaust device having the features of this invention.

[0007] According to the present invention, an air exhaust device is used in a vehicle. The air exhaust device includes: a housing having an air inlet and at least one air outlet, wherein a first blade and a second blade are disposed in the housing; and a drive device having a drive element rotatable about a first rotation axis capable of being driven in opposite directions, the drive element being engaged with an adjustment element rotatable about a second rotation axis, the adjustment element being movable to a first driven position and at least one second driven position, wherein in the first driven position the adjustment element is engaged with a primary driven element rotatable about a third rotation axis, and in the second driven position the adjustment element is engaged with a secondary driven element rotatable about a fourth rotation axis, wherein the primary driven element is operatively connected to the first blade and the secondary driven element is operatively connected to the second blade, such that the first blade and the second blade can deflect independently of each other in two opposite rotation directions.

[0008] An air exhaust device is designed for vehicle ventilation. The air exhaust device has a housing including at least one air supply port and at least one outlet, wherein the housing has a first blade and a second blade. The first blade is, for example, a V-blade, by which the airflow is lateral, i.e., oriented in the y-direction. The second blade is, for example, an H-blade, by which the airflow is oriented upwards or downwards, i.e., oriented in the z-direction. A drive mechanism with a motor-type driver and a transmission is provided to drive the first and second blades.

[0009] The transmission device has a drive element rotatable about a first rotation axis, drivable in opposite directions, which is engaged with an adjusting element rotatable about a second rotation axis. The adjusting element is movable to at least one first driven position and one second driven position. The movement of the adjusting element can be a translational movement on a straight track, a curved track, a circular track, or a freely shaped track. In the first driven position, the adjusting element is engaged with both the drive element and the first driven element. In the second driven position, the adjusting element is engaged with both the drive element and the second driven element.

[0010] A first driven element is operatively connected to a first blade, and a second driven element is operatively connected to a second blade, for example. When the adjusting element is in the first driven position, the first blade can be driven—in the direction of rotation of the first drive gear—in either a first rotational direction or the opposite second rotational direction. If the adjusting element is in the second driven position, the second blade can be adjusted in either the first direction or the opposite second direction.

[0011] The control device can, for example, control the position of the drive motor and the adjusting element connected to the drive element according to the user's adjustment of the air exhaust device. With the help of the control device, the drive motor can be activated or deactivated, and the direction of rotation of the drive motor can be controlled, for example.

[0012] In the simplest case, the activation / deactivation of the drive motor and the position of the adjustment element can also be manually controlled by a switch.

[0013] The advantage of this invention is that (depending on whether the adjusting element is engaged with the driven element, and if so, which driven element the adjusting element is engaged with and what rotation direction the driving element has), the first blade and the second blade can be deflected independently along two opposite rotation directions by means of a drive motor according to this invention.

[0014] The adjusting element can be moved to an intermediate position, in which it is not in contact with any of the driven elements. In this intermediate position, none of the driven elements are driven. The blades cannot be moved by the drive motor in this intermediate position. In this intermediate position, neither the first nor the second driven element is engaged with the adjusting element. The blade arrangement is configured such that the V-blade and H-blade are manually movable in the intermediate position. However, the adjusting resistance can be configured, for example, to prevent unintentional adjustment or even tactile operating force.

[0015] The rotation axes of the driving element, adjusting element, and driven element are configured, for example, parallel to each other. This feature simplifies the structural cost, including the transmission configuration of the elements, namely the driving element, adjusting element, and driven element. If the elements, for example, each have gears, these gears can be formed from simple standard teeth.

[0016] The rotation axis of the adjusting element is positioned parallel to the rotation axes of the elements (driving element, adjusting element, and driven element) within a triangle, for example, where the angles of the triangle are the rotation axes of the driving element and the two driven elements. These features reduce the structural space of the transmission device formed by these elements.

[0017] The driving element, adjusting element, and each driven element are configured, for example, as gears. When the elements are configured as gears acting together with suitable supports, accurate positioning of the blades is ensured without slippage between the elements. Furthermore, easy construction using metal or plastic is possible, for example. Alternatively, the elements can be conceived as friction wheels, for example.

[0018] An adjusting element is rotatably supported, for example, on an adjusting rod, wherein the adjusting rod has an operating area. The adjusting rod, for example, forms a rotational axis for the adjusting element. The adjusting rod is rotatably supported, for example, about the rotational axis of a drive element and thus in a continuous engagement with the first drive element. The rotational axis of the adjusting element is thus deflectably supported between first and second driven positions and, if necessary, an intermediate position. The adjusting element is here, for example, always retained in engagement with the drive element.

[0019] The adjusting lever is configured, for example, as a double-arm lever, wherein one lever arm forms the axis of rotation for the adjusting element and the other lever arm forms the operating area. The operating area can be operated manually or, for example, by means of an actuator on the operating area, to offset the adjusting element between the positions, namely, a first driven position, a second driven position, and, if necessary, an intermediate position.

[0020] The rotation axis for adjusting the element and the operating area for the actuator can be set on a common lever. Furthermore, the actuator can act directly or indirectly on the operating area via an intermediate connecting transmission device or other lever.

[0021] The adjusting rod, for example, has a first guide device that engages with a second guide device of the slide. In this way, the number of degrees of freedom of the adjusting rod can be limited. The area of ​​the lever arm including the first guide device can only move along a predetermined track defined by the slide.

[0022] The adjusting rod, for example, has a first locking mechanism that works in conjunction with a second locking mechanism of the slide groove to stably hold the adjusting rod in a neutral position. The neutral position is adjusted when the adjusting rod is at the apex of the slide groove. The second locking mechanism is formed, for example, by a notch in the wall of the slide groove corresponding to the shape of the first locking mechanism. The first locking mechanism is formed, for example, by a protrusion of the adjusting rod that engages with the slide groove, such as by a pin.

[0023] The adjusting rod is, for example, spring-loaded onto a first or second end region of the slide. The slide is, for example, arcuate in shape. At the apex, the adjusting rod is not spring-loaded onto either end region of the slide. This apex is therefore the dead point of the spring. If the adjusting rod crosses this dead point along a first direction or an opposite second direction, the spring loads the adjusting rod onto the corresponding end region of the slide.

[0024] The control lever is, for example, rotatably supported about a first axis of rotation and hinged to an adjusting lever, such as a lever arm of the adjusting lever, and forming an operating end joint. The adjusting lever can thus perform a simple deflection movement operable by an actuator.

[0025] The adjusting lever or control lever can be adjusted, for example, by means of an actuator. The actuator can perform translational motion, rotational motion, or a mixture of translational and rotational components.

[0026] For example, the actuator is formed by an electric actuator, such as an electromagnetic driver.

[0027] For example, the adjusting element is spring-loaded to engage with at least one of the driven elements using a spring. That is, the adjusting element is loaded into a first driven position, for example. Then, adjustment is made in a second driven position against the force of the spring. Alternatively, when the guide apex or the dead point of the spring is exceeded, the adjusting element can be loaded into either the first or second driven position, wherein, at the dead point, the adjusting element is not loaded into either of the driven positions.

[0028] For example, for manipulation, an electric actuator, such as an electromagnet actuator, is considered. The actuator and / or lever may be preloaded, for example by a spring, such that the adjusting element is engaged with one of the driven elements and engaged with the other driven element against the spring force when the electromagnet is activated.

[0029] Alternatively, the lever is operatively connected to a dead-point spring that pulls or compresses the lever into a first or second position. An electromagnet actuator then ensures that the dead point of the spring is passed during operation, thus causing the lever to deflect to the corresponding additional position.

[0030] Alternatively, the electromagnet may act, for example, in two directions in different directions. When the electromagnet is activated in the first direction, the adjusting element moves to engage with the first driven element, and when the electromagnet is activated in the second direction, the adjusting element moves to engage with the second driven element. If necessary, in the neutral position of the electromagnet, the adjusting element disengages from each of the driven elements in an intermediate position.

[0031] Advantageously, the adjusting element can be moved to an intermediate position in which it is not engaged with either the primary or secondary driven element.

[0032] Advantageously, the driving element, the adjusting element, and each of the primary and secondary driven elements are configured as gears.

[0033] Advantageously, the adjusting rod forms the rotation axis and operating area for the adjusting element.

[0034] Advantageously, the adjusting rod is configured as a double-armed lever, wherein one lever arm forms the second axis of rotation of the adjusting element and the other lever arm forms the operating area.

[0035] Advantageously, the adjusting rod has a first guide device that engages with a second guide device of the slide.

[0036] Advantageously, the adjusting rod has a first locking mechanism that works in conjunction with a second locking mechanism of the slide to stably hold the adjusting device in the intermediate position.

[0037] Advantageously, the adjusting rod is spring-loaded onto the first end region or the second end region of the slide.

[0038] Advantageously, the joystick is supported by deflection about a first axis of rotation and forms a hinge with the lever of the two arms as well as forming an operating end joint.

[0039] Advantageously, the adjusting rod or the control lever can be adjusted by means of an actuator.

[0040] Advantageously, the actuator is formed by an electric actuator.

[0041] Advantageously, the adjusting element is spring-loaded by means of a spring to engage with at least one of the primary driven element and the secondary driven element.

[0042] Advantageously, the adjusting element is spring-loaded by means of a spring to engage with at least one of the primary driven element and the secondary driven element, and can be moved by the actuator to engage with the corresponding other driven element of the primary driven element and the secondary driven element.

[0043] Advantageously, the adjusting element is spring-loaded by means of a spring to engage with a primary driven element or with a secondary driven element, and the spring end passes a dead point during the movement of the adjusting element between a first driven position and a second driven position, in which the adjusting element is not loaded into either the first or second driven position.

[0044] Advantageously, the actuator enables the adjusting element to move past the dead point to either a first driven position or a second driven position.

[0045] Advantageously, the adjusting element is spring-loaded to an intermediate position in which it is not engaged with either the primary or secondary driven element, and the adjusting element is movable by the actuator not only to a first driven position engaged with the primary driven element but also to a second driven position engaged with the secondary driven element.

[0046] Advantageously, the actuator is formed by an electromagnetic driver. Attached Figure Description

[0047] Embodiments of the present invention will be exemplarily described in the following description of the accompanying drawings with reference to the drawings. For clarity—and whenever different embodiments are involved—the same or similar parts, elements, or areas are indicated by the same reference numerals, partially supplemented by lowercase letters.

[0048] The features described with respect to only one embodiment may also be provided within the scope of this invention in any other embodiment. Although not shown in the drawings, such modified embodiments are also included in this invention.

[0049] All disclosed features are essential to this invention. The disclosures of cited documents and described prior art devices are also incorporated herein in their entirety, for the purpose of including individual or multiple features of these documents together in this application.

[0050] in:

[0051] Figure 1 A perspective view of the air exhaust device is shown from the oblique rear.

[0052] Figure 2 A drive device including a drive element and an adjustment element is shown, wherein the adjustment element is engaged with a first driven element and is driven along a first rotation direction;

[0053] Figure 3 Showing according to Figure 2 A driving device, wherein the driving element is driven along a second rotational direction;

[0054] Figure 4 Showing according to Figure 2 The driving device, wherein the adjusting element and the second driven element are engaged and driven along the first rotation direction;

[0055] Figure 5 Showing according to Figure 4 The driving device, wherein the adjusting element is driven along the second rotation direction;

[0056] Figure 6A second embodiment of the drive device is shown, wherein the adjusting element is movable to a first driven position and a second driven position according to the first embodiment, wherein the adjusting element is additionally adjustable to an intermediate position in which the adjusting element is not engaged with any of the driven elements;

[0057] Figure 7 Showing according to Figure 6 A partial view of section line A in the figure, showing an example of an adjustment device including possible support of the adjustment element on the adjustment rod;

[0058] Figure 8 Showing according to Figures 2 to 5 A view of the drive unit, including an alternative adjustment device for stably adjusting the driven position, the adjustment device including a base for receiving the drive unit of the air exhaust device, wherein the drive unit is in a first driven position and wherein a component of the drive unit is not shown;

[0059] Figure 9 Shown in accordance with Figure 8 A rear view of the components of the adjusting device and the driving device in the first driven position, wherein the base is not shown for clarity;

[0060] Figure 10 A front view of the adjustment device of the drive unit in the first driven position is shown, wherein the base is not shown for clarity;

[0061] Figure 11 Showing according to Figure 8 A view of the adjustment device, wherein the drive device is in an intermediate position between a first driven position and a second driven position;

[0062] Figure 12 The following is shown in the middle position of the drive unit. Figure 9 A view of the adjustment device;

[0063] Figure 13 The following is shown in the middle position of the drive unit. Figure 10 A view of the adjustment device;

[0064] Figure 14 Showing according to Figure 11 A view of the adjustment device, wherein the drive device is in the second driven position;

[0065] Figure 15 The following is shown in the second driven position of the drive unit: Figure 12 A view of the adjustment device;

[0066] Figure 16 The following is shown in the second driven position of the drive unit: Figure 13 A view of the adjustment device. Detailed Implementation

[0067] exist Figure 1 The diagram shows an air exhaust device 10, which has a housing 11 including an air inlet 12, an air outlet 16, and a central axis m. Furthermore, the air exhaust device 10 has a drive mechanism 30, by which V-blades 14 and H-blades 15 are movable. Other blades may be present. The H-blades and V-blades are used to deflect the airflow 22 horizontally and vertically relative to the centerline m. Using the V-blade 14, the airflow 22 can be deflected in directions y1 and y2, and using the H-blade, the airflow can be deflected in directions z1 and z2.

[0068] The drive unit 30 has a transmission device 13, which has a driven element 17, driven by an electric motor (not shown) in opposite rotational directions. In the inactive state, the electric motor, and thus the drive element 17, is also stationary. In this example, the drive element 17 is a gear rotatable in directions u1 and u2, but alternatively, it could be a friction wheel. The rotational directions u1 and u2 of the first drive element 17 can be changed by switching the rotational direction of the electric motor. The drive unit 30 can be controlled, for example, by a control device (not shown). Figure 2 The driving element 17 rotates in the direction u1.

[0069] The adjustable element 18 is engaged with the drive element 17 via the adjustable device 20, which will be further described below. In this example, the offset is made by means of an actuator 27 (here, the magnet is lifted), which is supported in the receiving portion 28. Furthermore, the adjustable element 18 is adjusted according to... Figure 2 It is engaged with the first driven element 19. A spring, invisible to the naked eye, loads the adjusting element 18 onto the... Figure 2 In the first driven position shown in the figure. The first driven element 19 is in accordance with Figure 2 Rotate in direction w1. The second driven element 21 disengages from the adjusting element 18 and is at rest. The axes a1 of the driving element 17, a2 of the adjusting element 18, a3 of the first driven element 19, and a4 of the second driven element 21 are arranged in parallel.

[0070] exist Figure 3In the first driven position, the drive element 17 rotates along direction u2. The adjusting element 18 is always engaged with both the drive element 17 and the driven element 19. The driven element 19 rotates along direction w2. For example, H-blades 15 are in operative connection with the driven element 19, so that these H-blades can move along a first rotation direction and a second rotation direction respectively, according to the rotation direction of the drive element 17 along direction u1 or u2.

[0071] according to Figure 4 The drive pinion 18 is deflected, for example by an electromagnet activated by the adjusting device 20, opposite to the return force of the spring, such that the drive pinion is engaged with the drive element 17 and the second driven element 21 in the second driven position. The drive element 17 rotates in direction u1 and drives the driven element 21 in direction p1. The driven element 19 is stationary because it is not in contact with either of the actuators.

[0072] For example, V-blade 14 and driven element 21 are in operative connection. In the opposite direction of rotation of drive element 17 along direction u2, driven element 21 rotates along direction p2 (see...). Figure 5 In this way, the V-blade 14 can be driven in different rotational directions, respectively, according to the rotational directions u1 and u2 of the drive element 17.

[0073] Figure 6 An alternative second drive unit 30' is shown. This second drive unit is only connected to... Figures 1 to 5 The first drive unit 30 is distinguished by the fact that the adjusting element 18 is loaded into an intermediate position by at least one spring (not shown), in which the adjusting element is neither engaged with the first driven element 19 nor with the second driven element 21. Therefore, neither the V-blade 14 nor the H-blade 15 is driven. In this position, the V-blade 14 and the H-blade 15 can be manually adjusted.

[0074] exist Figure 6 In the embodiment shown, the adjusting element 18 can be moved, for example by means of an actuator (not shown) in the form of an electromagnet acting in the opposite direction, against the spring force, to... Figure 2 and 3 The first driven position and according to Figure 4 and 5 In the second driven position.

[0075] according to Figure 7An example of the adjusting device 20 is shown, which allows the adjusting element 18 to be adjusted between three adjacent positions: engaged with the driven element 19 (first driven position), engaged with the driven element 21 (second driven position), and not engaged with either of the driven elements 19 and 21 (intermediate position). The adjusting rod 23 of both arms is rotatably supported about the rotation axis a1 of the drive element 17, wherein one lever arm 24 constitutes the operating area 25 and the other lever arm 26 constitutes the support axis a2 for the adjusting element 18.

[0076] The length l of the lever arm 26 causes the teeth of the drive element 17 and the adjusting element 18 to be engaged. (From according to...) Figure 6 In the neutral position, the adjusting element 18 can be moved to engage with the driven element 19 by deflecting the adjusting lever 23 in the operating area 25 in the direction q1. Deflection of the lever 23 in the direction q2 causes the adjusting element 18 to deflect to engage with the driven element 21. An intermediate position exists in which the adjusting element 18 is not engaged with either the driven element 19 or 21.

[0077] Using the drive devices 30 and 30' for the air exhauster 10, the V-blade 14 and H-blade 15 can be moved in a first rotational direction and a second rotational direction opposite to the first rotational direction, respectively, by means of a driver that is movable in opposite rotational directions. Therefore, five different drive states can be switched when the intermediate position of the adjusting element 18 is adjustable.

[0078] exist Figures 8 to 16 Another variation of the regulating device 20 of the drive unit 30 of the air exhauster 10 is shown. This variation essentially corresponds to the first embodiment, wherein the regulating device 20' differs from the regulating device 20. A variation is illustrated in how the regulating element 18 can be stably held in a first driven position, a second driven position, and, if necessary, an intermediate position.

[0079] according to Figure 8 Spring 44, in this example, is a helical spring connected at a first end region to a fastener on deflection axis a1 and at a second end region to a pin 37 of adjusting rod 31. The pin 37 is located on a first lever arm of adjusting rod 31 and forms a second deflection axis a2 on a second lever arm. Spring 41 applies tension to pin 37.

[0080] In addition, Figure 8An elongated hole 32 is formed in the base 38, and a support pin 33 is longitudinally movable and rotatably guided in the elongated hole. The support pin 33 forms the deflection axis a5 of the adjusting rod 31 and is fixedly held on the adjusting rod. The support pin 33 is movable in the elongated hole 32 along directions z1 and z2. The adjusting rod 31 is configured as a lever with two arms (see...). Figure 9 The lever holds the deflection axis a2 on the first lever arm and has a pin 37 on the second lever arm.

[0081] exist Figure 8 Furthermore, a groove 39 is formed in the base 38, in which a pin 37 is guided. The pin 37 is located on the first end region 41 of the groove 39. For the pin 37 to move out of this position, the spring force of the spring 44 needs to be overcome, as the spring 44 gradually increases in tension as the pin 37 moves toward the middle region 42 of the groove 39.

[0082] according to Figure 9 A control lever 34 is rotatably supported about a deflection axis a1. The control lever 34 has an elongated hole 35 and an operating end joint 36 in its end region opposite to the deflection axis a1. A pin 37 is longitudinally movable and rotatably guided in the elongated hole 35. The pin 37 and the elongated hole 35 form a rotational hinge G. Figure 9 As can be seen, the spring force of spring 44 applies torque to the adjusting rod 31 about the rotation axis 33, because the spring force acts eccentrically in the direction z2 relative to the rotation axis 33 of the adjusting rod 31. The adjusting element 18 is thus loaded into the first driven position by spring 44.

[0083] joystick 34 according to Figure 10 In the first final position, the lever moves the adjusting lever 18 to a position in which the adjusting element 18 is engaged with the driven element 19 in the first driven position.

[0084] according to Figure 11 The joystick 34 is adjusted according to Figure 10 The first final position moves along direction q1 to a position intermediate between the first and second final positions. Pin 37 is located in the middle region 42 of the slide groove 39. In the apex position, the first deflection axis a1, the deflection axis 33 of the adjusting rod 31, and pin 37 are aligned. This position is then referred to as the dead point.

[0085] In dead-point locations (see...) Figure 12Spring 44 has the highest stress, but its spring force does not apply any torque to lever 31. The spring force of spring 44 is transmitted to the first rotation axis a1 via adjusting element 18 and drive element 17. Support pin 33 is located at one end region of elongated hole 32. In the dead center position, adjusting element 18 is in the intermediate position. Figure 13 As can be seen, the adjusting element 18 is disengaged from the first driven element 19 and the second driven element 21 in the dead position.

[0086] It is possible, for example, to stabilize the intermediate position by: using pin 37 according to Figure 11 The groove 39 has a recessed opening, through which the pin can move out by overcoming the increased force.

[0087] If on the control end connector 36, the control lever 34 is adjusted according to... Figure 13 If the position moves past the dead point along direction v1, the spring force assists the lever 34 in deflecting along direction v1 until the adjusting element 18 engages with the second driven element 21 in the final position of the adjusting rod 31, wherein the spring force is relaxed. In this second driven position of the adjusting element 18, the pin 37 is disposed on the second end region 43 of the slide groove 39 (see...). Figure 14 The lever is also in its final position. The adjusting element 18 is thus loaded into the second driven position by the spring 44.

[0088] joystick 34 from according to Figure 15 The operation along direction v2 tensions the spring 44 until it reaches its dead point. Afterward, the spring 44 assists the adjusting lever 31 and indirectly also assists the operating lever 34 in moving to the position where the adjusting element 18 is in accordance with... Figure 10 In the first driven position, pin 37 is once again on the first end region 41 of the slide groove 39.

Claims

1. An air exhaust device for use in a vehicle, the air exhaust device comprising: A housing (11) including an air inlet (12) and an air outlet (16), wherein a first blade (14) and a second blade (15) are provided in the housing (11); a drive device (30, 30') having a drive element (17) rotatable about a first rotation axis (a1) capable of being driven in opposite directions, the drive element being engaged with an adjusting element (18) rotatable about a second rotation axis (a2), characterized in that the adjusting element (18) is movable to a first driven position and at least one In the second driven position, in the first driven position, the adjusting element is engaged with a primary driven element (19) that can rotate about a third rotation axis (a3), and in the second driven position, the adjusting element is engaged with a secondary driven element (21) that can rotate about a fourth rotation axis (a4), wherein the primary driven element (19) is operatively connected with the first blade (14) and the secondary driven element (21) is connected with the second blade (15), such that the first blade (14) and the second blade (15) can deflect independently of each other in two opposite rotation directions.

2. The air exhaust device according to claim 1, characterized in that, The adjusting element (18) is movable to an intermediate position in which the adjusting element is not engaged with either the primary driven element (19) or the secondary driven element (21).

3. The air exhaust device according to claim 1, characterized in that, Each of the driving element (17), the adjusting element (18), the primary driven element (19), and the secondary driven element (21) is configured as a gear.

4. The air exhaust device according to claim 2, characterized in that, The adjusting rod forms the rotation axis and operating area for the adjusting element (18).

5. The air exhaust device according to claim 4, characterized in that, The adjusting rod is configured as a double-arm lever, wherein one lever arm (26) forms the second rotation axis (a2) of the adjusting element (18) and the other lever arm (26) forms the operating area (25).

6. The air exhaust device according to claim 4, characterized in that, The adjusting rod has a first guide device, which is engaged with the second guide device of the slide groove (39).

7. The air exhaust device according to claim 6, characterized in that, The adjusting rod has a first locking mechanism, which works together with the second locking mechanism of the slide (39) to stably hold the adjusting device (20) in the intermediate position.

8. The air exhaust device according to claim 6, characterized in that, The adjusting rod is loaded by a spring (44) onto the first end region (41) or the second end region (43) of the slide (39).

9. The air exhaust device according to claim 5, characterized in that, The joystick (34) is rotatably supported about a first axis of rotation (a1) and forms a hinge (G) with the lever (31) of the two arms and forms an operating end joint (36).

10. The air exhaust device according to claim 9, characterized in that, The adjusting rod or the control lever (34) can be adjusted by means of an actuator.

11. The air exhaust device according to claim 10, characterized in that, The actuator is formed by an electric actuator.

12. The air exhaust device according to claim 10, characterized in that, The adjusting element (18) is spring-loaded by means of a spring and engaged with at least one of the primary driven element (19) and the secondary driven element (21).

13. The air exhaust device according to claim 10, characterized in that, The adjusting element (18) is spring-loaded by means of a spring to engage with at least one of the primary driven element (19) and the secondary driven element (21), and can be moved by the actuator to engage with the corresponding other driven element of the primary driven element (19) and the secondary driven element (21).

14. The air exhaust device according to claim 13, characterized in that, The adjusting element (18) is spring-loaded by means of a spring (44) to engage with a primary driven element (19) or a secondary driven element (21), and the end of the spring passes a dead point in the movement of the adjusting element between a first driven position and a second driven position, in which the adjusting element (18) is not loaded into either the first driven position or the second driven position.

15. The air exhaust device according to claim 14, characterized in that, The actuator enables the adjusting element (18) to move past the dead point to either the first driven position or the second driven position.

16. The air exhaust device according to claim 12, characterized in that, The adjusting element (18) is spring-loaded to an intermediate position in which the adjusting element is not engaged with either the primary driven element (19) or the secondary driven element (21), and the adjusting element is able to move not only to a first driven position engaged with the primary driven element (19) but also to a second driven position engaged with the secondary driven element (21) by means of the actuator.

17. The air exhaust device according to claim 11, characterized in that, The actuator is formed by an electromagnetic driver.

Images