EP3418646B1 - Device for air distribution - Google Patents

Description

The invention relates to a device for air distribution with the features of claim 1. The device for air distribution comprises a housing which provides two chambers, each of which has a first air passage opening and a second air passage opening, with a rotatably arranged flap on the housing being provided for each first air passage opening , which can be transferred from a closed position to a non-closed position and vice versa.

Air distribution devices can be ventilation devices that are used to distribute air in rooms, for example to supply the rooms with fresh air from outside or cool/warm air. Such ventilation devices provide two chambers, each of which has air passage openings. The air passage openings can be designed, for example, as air inlet openings and air outlet openings. A flap is provided for each air inlet opening, which can be moved from a closed position to a non-closed position and vice versa. When used as intended, air can flow in and out in the non-locking position. When the flaps are closed, air cannot flow in or out.

Furthermore, ventilation devices have a gear that is in operative connection with the respective flaps. The gearbox, in turn, is in operative connection with an actuator. An actuator can be, for example, a motor. When used as intended, the motor drives the gearbox under the influence of force, while the gearbox rotates the flaps.

Typically, the transmission is made up of several components, as is known, for example, from gear transmissions.

Even if the ventilation devices known from the state of the art have proven themselves in everyday life, there is still a need for improvement.

A device for air distribution is from the US4312381 A known.

Based on this, the object of the invention is to further develop a device for air distribution of the type described above in such a way that production is more cost-effective and user handling is simplified.

To solve this problem, the invention proposes a device for air distribution with the features of claim 1, which is characterized by a push rod with which the two flaps are positively coupled, the push rod being attached at one end to one flap and at the other end to the other flap is rotatably arranged, and an actuator which is in operative connection with one of the two flaps.

According to the invention, the ventilation device has a push rod. The push rod is positively coupled to the two flaps. The forced coupling means that when one flap is rotated, the other flap is rotated at the same time. The advantage of the push rod according to the invention is that a gear can be dispensed with. Since gearboxes known from the prior art are made up of several components and therefore have a more complex structure, the simple structure of a push rod is particularly advantageous. The use of the push rod according to the invention instead of the gearbox has a particularly positive effect on the manufacturing costs.

The wear of a push rod according to the invention is also reduced due to the simple structural design. This extends the service life of a ventilation device on which the invention is based. If signs of wear or defects occur, replacing the push rod is particularly cost-effective for the user, in contrast to a gearbox.

According to the invention, the ventilation device has an actuator which is in operative connection with one of the two flaps. When used as intended, the force emanating from the actuator is transferred to one of the flaps. From this flap, the force is transmitted to the push rod all the way to the other flap. If the ventilation device has more than two flaps, additional push rods can also be inserted between the flaps.

The push rod itself is not able to rotate both flaps at the same time because there is no force element. The actuator itself is also not able to rotate both flaps at the same time, since the actuator is only operatively connected to one flap. The combination of the push rod with the actuator makes possible However, by applying force to just one flap, two flaps can be twisted at the same time. This synergistic effect not only provides the advantage of a gear-free device. Assembly during production of the ventilation unit is also made much easier, as the actuator and the push rod can be mounted independently of each other.

Another advantage resulting from the synergistic effect is the easy maintenance of the ventilation device. Since the actuator and the push rod are not in direct connection through the intermediate flap, the actuator and push rod can be replaced independently of each other.

Furthermore, it is possible to arrange the actuator more flexibly within the ventilation device, since the position only depends on the flap that is in operative connection. This is particularly advantageous because the actuator can be positioned to save as much space as possible.

According to a further feature of the invention, it is provided that each of the two flaps carries a pin on one side and the other end, which define an axis of rotation for each flap. The axis of rotation is the axis around which the flaps rotate when used as intended. The pins serve to extend the flaps so that the flaps can be attached to the housing using the pins. For this purpose, the pin-receiving arms are provided, each with a corresponding opening.

According to a further feature, it is provided that the axes of rotation of the two flaps are aligned parallel to one another. Accordingly, the flaps are inevitably aligned parallel to one another. This is particularly advantageous because the push rod transfers the twisting movement of one flap via a linear movement into a twisting movement on the other flap.

According to a further feature of the invention, it is provided that each flap has a bearing pin for the respective rotatable connection of the push rod, the push rod providing a corresponding bearing eye. The bearing pins serve to ensure that the push rod is easily coupled to the two flaps by means of the bearing pins. To do this, the push rod adjusts to the bearing pin corresponding bearing eye ready, with the bearing eye of the push rod engaging around the bearing pin. Thanks to the bearing pin provided by the flap and the corresponding bearing eye, the push rod can be easily replaced by pulling off the push rod without much effort. Conversely, installing the push rod is just as easy by placing the push rod on the bearing pins.

According to a further feature it is provided that the bearing pin provides locking means. The locking means serve to securely position the push rod on the bearing pin, so that the push rod does not fall off unintentionally during operation or transport of the ventilation device. The locking means can each have a slot, the slots causing the locking means to each have a larger diameter than the bearing eye of the push rod. According to the invention, the design of the locking means with the slots is preferred, since it is possible to remove the push rod again by compressing the locking means in a resilient manner in the direction of the associated slot. This is particularly advantageous if, for example, the arrangement of the push rod is to be changed or the push rod itself needs to be replaced.

According to a further feature of the invention it is provided that each flap has two bearing pins which are arranged at a distance from one another with the interposition of one of the two pins. The advantage of two bearing pins is that the push rod can be arranged in different positions. The intermediate arrangement of the pin between the bearing pins provides two positions for each bearing pin at which the push rod can act. If the push rod is arranged on one bearing pin, the flap rotates in one direction. If the push rod is arranged on the other bearing pin, the flap rotates in the other direction. By choosing the position, the push rod can be arranged as required so that the flaps can be rotated either in parallel or in opposite directions. Parallel in the sense of the invention means that the flaps rotate in the same direction. Opposite in the sense of the invention means that the flaps rotate in different directions. The presence of two bearing pins gives the user the opportunity to determine the direction of rotation by changing the position of the push rod. According to a further feature, it is provided that a flap has a base body and a coupling element arranged thereon, which provides the bearing pin(s). The advantage of a base body is that the flaps can be easily replaced if they become worn or defective. On the other hand, existing devices for air distribution can be upgraded with the base bodies of the flaps according to the invention. This means that ventilation devices that are already known from the prior art can be easily upgraded or converted. The advantage of a coupling element arranged on the base body is that the coupling element can be designed the same regardless of the size of the base body. This means that ventilation devices can be constructed according to the modular principle, so that only the base body has to be adapted to the size of the ventilation device.

According to a further feature, it is provided as an alternative that the base body and the coupling element are formed in one piece. This configuration has the advantage that the number of components is reduced to a minimum, so that there is less chance of components being lost during assembly or conversion.

According to a further feature, it is provided that the coupling element is arranged on the base body in a replaceable manner. This configuration makes it possible to equip existing flaps in air distribution devices with the coupling elements mentioned while retaining the already existing flaps. In addition, it is possible to simply replace only the coupling element, which accordingly only provides one or more bearing pins, without having to replace the entire flap. This is particularly advantageous if one of the bearing pins breaks off or wears out, for example.

According to a further feature, it is provided that the actuator is a manually operable adjusting disk which is attached to a pin of one of the two flaps. The adjusting disk can, for example, be designed as a gear, which the user can turn manually so that the associated flap also rotates at the same time. The adjusting disk is designed in such a way that the pin is arranged on the adjusting disk in a non-slip manner. For this purpose, the adjusting disk has, for example, a cross slot, while the pin is cross-shaped and form-fitting is designed to correspond to the cross slot. Such a design prevents the adjusting disk from slipping on the pin.

An alternative to the manually operated actuator is according to a further feature
a motor is provided. The motor is particularly advantageous if the ventilation unit is positioned in such a way that manual operation of the actuator is not possible. The motor can advantageously operate the actuator at a distance from the device.

Fig. 1

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung;

Fig. 2

in schematisch perspektivischer Darstellung die beweglichen Teile des erfindungsgemäßen Geräts zur Luftverteilung;

Fig. 3

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung ohne Abdeckung mit gegenläufig angeordneter Schubstange und geschlossenen Luftklappen;

Fig. 4

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung ohne Abdeckung mit einer gegenläufig angeordneten Schubstange und geöffneten Luftklappen;

Fig. 5

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung ohne Abdeckung mit einer gegenläufig angeordneten Stange und halb geöffneten Lüftungsklappen;

Fig. 6

in schematisch perspektivischer Darstellung der beweglichen Teile des erfindungsgemäßen Geräts zur Luftverteilung mit parallel angeordneter Schubstange;

Fig. 7

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung ohne Abdeckung mit parallel angeordneter Schubstange und geschlossenen Lüftungsklappen;

Fig. 8

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung ohne Abdeckung mit parallel angeordneter Schubstange und offenen Lüftungsklappen;

Fig. 9

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung ohne Abdeckung mit einer parallel angeordneten Schubstange und geschlossenen Lüftungsklappen;

Fig. 10

in schematisch perspektivischer Darstellung die beweglichen Teile des erfindungsgemäßen Geräts zur Luftverteilung mit einer offenen und einer geschlossenen Lüftungsklappe;

Fig. 11

in schematisch perspektivischer Darstellung das erfindungsgemäße Gerät zur Luftverteilung ohne Abdeckung und mit einer offenen und einer geschlossenen Lüftungsklappe.

Further advantages of the invention result from the following description based on the figures. Show it

Fig. 1

a schematic perspective view of the air distribution device according to the invention;

Fig. 2

a schematic perspective view of the moving parts of the air distribution device according to the invention;

Fig. 3

a schematic perspective view of the device according to the invention for air distribution without a cover with a push rod arranged in opposite directions and closed air flaps;

Fig. 4

a schematic perspective view of the device according to the invention for air distribution without a cover with a push rod arranged in opposite directions and opened air flaps;

Fig. 5

a schematic perspective view of the device according to the invention for air distribution without a cover with a rod arranged in opposite directions and half-open ventilation flaps;

Fig. 6

in a schematic perspective representation of the moving parts of the device according to the invention for air distribution with a push rod arranged in parallel;

Fig. 7

a schematic perspective view of the device according to the invention for air distribution without a cover with a push rod arranged in parallel and closed ventilation flaps;

Fig. 8

a schematic perspective view of the device according to the invention for air distribution without a cover with a push rod arranged in parallel and open ventilation flaps;

Fig. 9

a schematic perspective view of the device according to the invention for air distribution without a cover with a parallel push rod and closed ventilation flaps;

Fig. 10

a schematic perspective view of the moving parts of the device according to the invention for air distribution with an open and a closed ventilation flap;

Fig. 11

a schematic perspective view of the device according to the invention for air distribution without a cover and with an open and a closed ventilation flap.

The Figures 1 to 11 show a schematic perspective view of the device according to the invention for air distribution with and without a cover as well as the moving parts separately.

From the Figures 1 and 3 It can be seen that the ventilation device 1 has a housing 2 which provides two chambers 3, 4. The chambers are separated from one another in terms of air flow by a partition 22. The chambers 3, 4 each have a first air passage opening 5 and a second air passage opening 6. The first air passage opening 5 can be formed as an air inlet opening 5, so that an inflow of air takes place. The air inlet opening 5 is formed from several elongated recesses 21 within the housing 2. The second air passage opening 6 can be designed as an air outlet opening 5, so that the air that previously flowed in can flow out again.

By separating the chambers 3, 4 by means of the partition 22, the inflow and outflow of air takes place independently of one another. To regulate the air flow, 2 flaps 7, 8 are provided on the housing, which can be moved from a closed position to a non-closed position and vice versa. The flaps 7, 8 are arranged on the housing 2 in such a way that in the closed position they cover the recesses 21 of the first air passage opening 5, with a frame 20 receiving the flaps 7, 8. The frame 20 serves to cover the gap that is located between the flaps 7, 8 and the housing 2. This prevents air from entering through the gap.

The flaps 7, 8 are forcibly coupled by a push rod 9, in that the push rod 9 is rotatably arranged on one side of one flap 7 and on the other end on the other flap 8. Forced coupling means that when one flap 7 is rotated, the other flap 8 is rotated at the same time.

In order to rotate the flaps 7, 8 on the user side, an actuator 10 is arranged on one of the flaps 8, so that it is in operative connection with the flap 8. To drive the actuator 10, the actuator 10 has an adjusting disk 19, which can be rotated in one direction or the other by the user depending on the position of the flaps 7, 8.

The flaps 7, 8 each define an axis of rotation. The axes of rotation of the two flaps 7, 8 are aligned parallel to one another, which is particularly true in Fig. 6 can be recognized.

The flaps 7, 8 each carry a pin 11, 12 on one end and the other end. The pin 11 is, for example, cross-shaped, while the adjusting disk 19 has an opening corresponding to the cross-shaped pin 11. This means that the tips of the cross from the pin 11 can reach into the opening of the adjusting disk 19. The pins 12 of the respective flaps 7, 8 are designed as an extension of the flaps, so that they are received by arms 23 arranged on the housing 2.

The flaps 7, 8 also each have two bearing pins 13, 16 which are used for the respective rotatable connection of the push rod 9. The push rod 9 provides a bearing eye 14 corresponding to the bearing pin 13, 16, which is placed on the respective bearing pin 13, 16.

The bearing pins 13, 16 provide a locking means 15, which serves to securely position the push rod 9 with its bearing eye 14 on the bearing pins 13, 16. The locking means 15 has a slot so that the locking means 15 has a larger diameter than the bearing eye 14 of the push rod 9. This makes a resilient compression of the locking means 15 possible in order to remove and replace the push rod 9 if necessary.

The bearing pins 13, 16 are arranged at a distance from one another with the interposition of one of the two pins 11, 12. Depending on the arrangement, the push rod 9 can therefore act on one of the two bearing pins 13 of the flap 7 or on the other of the two bearing pins 16 of the flap 8. Depending on which bearing pin 13, 16 is connected to the push rod 9, the flaps 7, 8 rotate in one direction or the other, with the flaps 7, 8 rotating either in the same direction or in the opposite direction. If the flaps 7, 8 rotate in the same direction, one speaks of flaps 7, 8 that can be rotated in parallel, as in the Figures 6 to 11 can be recognized. If the flaps 7, 8 rotate in different directions, one speaks of flaps 7, 8 that can be rotated in opposite directions, as shown in the Figures 2 to 5 are shown. This has the advantage that the user can place the push rod 9 individually and therefore flexibly.

According to a further feature of the invention, the flap 7, 8 has a base body 17 and a coupling element 18 arranged thereon, which provides the bearing pin(s) 13, 16.

The Figures 2 to 5 show that the push rod 9 is curved on one end. This is particularly advantageous when the coupling element 18 has two bearing pins 13, 16 and the flaps 7, 8 rotate in opposite directions. The one-sided curvature of the push rod 9 prevents the push rod 9 from abutting against the unoccupied bearing pin 13, 16 when the flap 7, 8 rotates in the opposite direction. This therefore, because for the opposite rotational movement of the flaps 7, 8, the push rod 9 is arranged diagonally from one bearing pin 13 to the other bearing pin 16 with the bearing pins 13, 16 aligned parallel to one another.

The Figures 6 to 11 show that with a parallel twisting movement of the flaps 7, 8, a one-sided curvature of the push rod 9 is not necessary, since the push rod 9 is arranged parallel from one bearing pin 13 to the other bearing pin 16 when the bearing pins 13, 16 are aligned parallel to one another.

In the Figures 7 to 11 no frame 20 is provided.

The Figures 10 and 11 show a schematic representation of the ventilation device 1 according to the invention in a further embodiment. In contrast to the embodiments of Figures 1 to 9 the flap 7 is in the non-closing position and the flap 8 is in the closed position, so that one flap 7, 8 is always in the non-closing position when the other flap 7, 8 is in the closed position.

Reference symbols

1

Device

2

Housing

3

chamber

4

chamber

5

first air passage opening

6

second air passage opening

7

flap

8th

flap

9

push rod

10

Actuator

11

Cones

12

Cones

13

Bearing pin

14

bearing eye

15

Rest means

16

Bearing pin

17

Basic body

18

Coupling element

19

adjusting disc

20

Frame

21

recesses

22

partition wall

23

poor

Claims (7)

1. Apparatus (1) for air distribution, comprising a housing (2) which provides two chambers (3, 4) which each have a first air passage opening (5) and a second air passage opening (6), wherein a flap (7, 8) is arranged rotatably on the housing (1) being provided for each first air passage opening (5), which can be transferred from a locked position into a non-locked position and vice versa, characterized by a push rod (9) by means of which the two flaps (7, 8) are coupled under compulsion, the push rod (9) being arranged rotatably at one end on one flap (7) and at the other end on the other flap (8) respectively, and an actuator (10) which is operatively connected to one of the two flaps (7, 8), each of the two flaps (7, 8) carrying a stud (11, 12) at one end and at the other end respectively, which define an axis of rotation for each flap (7, 8), characterized in that each flap (7, 8) has two bearing pins (13, 16) for the respective rotatable link of the push rod (9), which are arranged spaced apart from one another with one of the two studs (11, 12) being interposed, and wherein the push rod (9) provides a bearing eye (14) corresponding to the bearing pins.
2. Apparatus (1) for air distribution according to claim 1, characterized in that the axes of rotation of the two flaps (7, 8) are aligned parallel to one another.
3. Apparatus (1) for air distribution according to one of claims 1 or 2, characterized in that the bearing pins (13, 16) provide locking means (15).
4. Apparatus (1) for air distribution according to one of claims 1 to 3, characterized in that a flap (7, 8) has a base body (17) and a coupling element (18) arranged thereon, which provides the bearing pins (13, 16).
5. Apparatus (1) for air distribution according to claim 4, characterized in that the base body (17) and the coupling element (18) are formed in one piece.
6. Apparatus (1) for air distribution according to claim 4 or 5, characterized in that the coupling element (18) is arranged exchangeably on the base body (17).
7. Apparatus (1) for air distribution according to one of claims 1 to 6, characterized in that the actuator (10) is a manually operable adjustment wheel (19) which is mounted on a stud (11, 12) of one of the two flaps (7, 8).

Images