EP2791452B1 - Ventilation device for a window or a door - Google Patents

Description

The present invention relates to a ventilation device for a window or a door with a glare and wing frame according to the preamble of claim 1.

Such windows or doors have already become known in various designs. From the DE 3120694 A1 a ventilation device for a window or a door with a frame and sash has become known, wherein the ventilation device is arranged in the frame, which is connected for ventilation via openings with an interior and an environment to allow a limited exchange of air between the interior and the environment. For this purpose, outer and inner ventilation slots are provided in the upper or lower horizontal frame, which can be actuated by means of outer and inner pivot profile parts by a arranged on the inner pivot profile handle together in the opening or closing direction.

A disadvantage of the above-described ventilation device for a window or a door is that the ventilation device in cross-section comprises the entire space of the window frame, which can lead to an impairment of the strength of the window or the door, so you have to resort to special costly materials. Furthermore, the ventilation device can not or only with great effort mounted in conventional windows or doors. For example, contain plastic windows or aluminum windows for stability and also for thermal separation within the frame chambers formed by a plurality of webs, or steel reinforcements that must be processed when joining the individual Blendrahmenteile to assemble the ventilation device can. Both in finished manufactured aluminum or plastic wing frame as well as wooden frame of a window or a door, installation of the ventilation device is not possible. The arrangement of the functional fitting components for closing or tilting the window or the door, which occupy the area of the rebate, are fixed by mounting screws on the frame and penetrate into the space of the ventilation device, whereby the function of the ventilation device depending on the length or position of the Fixing screw can be affected.

Furthermore, ventilation devices have become known which strongly build on the room-side end face of the sash or window frame to the inside. This distorts the existing appearance of the window or door. The larger the structure of the window or the door designed by the ventilation device, the greater the risk that it may cause damage or injury during storage, transport or when cleaning the window or door.

The invention is therefore an object of the invention to provide a window or door with a simple design and functionally reliable ventilation device that can be particularly easy to assemble in different variants of windows and doors with low processing on casement, frame or fixed frame for retrofitting and all described above Disadvantages eliminated.

The solution of this problem is achieved by the means of the characterizing part of claim 1.

A window or a door construction has as basic components a frame, which is firmly installed in a building opening and a sash, which is either permanently installed in the frame and thus forms a fixed frame, or is tilted on this rotation and / or tiltable. The profiles of the frame and the sash are not detailed. For example, profiles of hollow profile bars of plastic or of light metal can be used. But there are also profiles of a wood material applicable. The ventilation device is advantageously designed so that the sash glare or fixed frame does not need to be changed. Despite the installation of the ventilation device, they retain their profile unchanged.

As a result, the ventilation device has transversely to the frame plane to a ventilation duct, which is simple and inexpensive with rectangular or circular design in its production. The type of embodiment of the ventilation duct determines the recess to be made in profile transversely to the frame plane to direct the air flow from the frame outside to the frame inside. Depending on the system of the door or window manufacturer, the frame has different profile thicknesses. Due to the two-part design of the ventilation duct, the ventilation duct is to be fastened precisely by means of telescopic telescoping ventilation ducts.

It is also advantageous that the ventilation device for forced ventilation has an air passage opening which extends in the longitudinal direction over the length of the ventilation device, so that there is a uniform distribution of the air flow.

Furthermore, the room-side air passage opening is arranged away from the window or the door side. As a result, disruptive air currents are avoided on the persons in the room.

According to a further advantage, the air passage opening extends from an outer end face to a room-side end face of the window or the door, wherein the air flow is passed starting from a first housing part through the air flow leading ventilation duct in the room-side housing part. To regulate the air flow, an actuator is provided in the housing part. To simplify the assembly and the adjustability, the actuator and the housing part is mounted resting on the room-side end face of the wing, glued or fixed frame, wherein the actuator has two shut-off elements, which by means of manual or automatic actuation simultaneously actuated in an opening and closing direction are.

A simple and inexpensive to manufacture, with a small size and high functionality of the ventilation device is effected by the fact that the shut-off forms the visible room-side end face of the housing part. In this case, the shut-off element extends transversely to the frame plane from the lower longitudinal edge to the upper longitudinal edge and in the longitudinal direction of the frame from one end to the other end of the housing part. Thus, apart from other components for the design of the housing part, since the actuator almost completely covers the surface of the housing part arranged on the room-side end face.

It has also proved to be advantageous that the shut-off element has the shape of a circular ring segment in cross-section. Through the circular segment of the entire visible area of the room side arranged ventilation device is covered and used as a musculoskeletal system for the regulation of the air flow. For this purpose, the room-side housing part takes the bearing longitudinal edges of the circular ring segment and the ends in the longitudinal direction of the shut-off leader. To simplify the Mounting and as an optical advantage form the room-side housing part and the shut-off a component. In this case, the shut-off element is rotatably limited adjustable held about a rotational axis in the housing part. To maintain the shape of the housing part is also adapted at its supporting ends of the shut-off with formation of a circular ring segment.

It is also advantageous that the supporting ends of the housing part and the free ends of the shut-off element have a rotation limitation, so that no further components for limiting the rotational movement are needed. Upon manual actuation of the ventilation device via the shut-off element, the ventilation device is given an optimal position in the end positions in the overlapping position by the rotation limitation. until a complete closure of the airflow takes place, or in the released position for the largest possible air flow. Within the adjustment of the air flow can be regulated depending on the position of the shut-off and the position of the air passage opening.

In order to prevent escape of the air flow and leaks, a sealing strip is arranged to the upper end of the housing part at the free longitudinal edge of the shut-off, which closes the air passage opening in the closing position occlusive, which also has a heat-insulating and sound-insulating effect. The sealing strip thus encloses a space between the housing part and the shut-off element and prevents escape of the air flow. To attach the sealing strip on the shut-off element, an undercut groove is provided in the longitudinal direction of the frame plane, in which the sealing strip can be inserted laterally and is secured against being pulled out in the transverse direction to the frame plane.

Space saving and cost is the shut-off element in the embodiment, according to which a tooth profile is provided in cross-section along the inner contour of its circular ring segment shape. Between the housing part and the shut-off element itself, the tooth profile meshes with a toothed pinion which, in turn, meshes with another toothed pinion, starting from its axis of rotation. The latter pinion is in direct communication with a second shut-off element.

To simplify the closing of the ventilation duct with a small space requirement of the second, pointing to the ventilation duct shut-off element, the axis of rotation of the shut-off element and the pinion through the center plane of the ventilation duct, wherein the first shut-off element when actuated synchronously causes a pivoting in the opposite direction of the second shut-off element.

It is also advantageous that by the pivotable arrangement of the actuator of the air flow occluding shut-off elements and large air passage openings, which ensure an intensive exchange of air, since within the shut-off and the housing part no narrowing fixed components must be arranged. The arrangement of the visible on the room-side end face covering the shut-off element and arranged in the ventilation device roller-shaped shut-off together with the housing part in a closed position results in a double-walled enclosed air chamber with a good heat-insulating clam shell.

For simple and inexpensive production contributes to the operation of the ventilation device on the room side surface of the circular ring segment shape of the shut-off a handle is provided, which is either designed integrally with the shut-off, or can be clipped into a recess of the shut-off.

In order to realize a cost-effective production as well as a simple and quick installation of the ventilation device, the elements required for guiding the air flow of the ventilation device from the ventilation duct, which in turn is divided into an inner air duct and an outer air duct, which are designed to be held displaceable, and from the room-side housing part and a housing part arranged on the wing, glazing or fixed frame on the outside end face of the window or the door.

In this case, the inner air channel on the frame-side end face side facing the housing part and the outer air channel with the housing part by a positive and / or frictional connection can be connected. Both housing parts completely cover the ventilation duct. The uncomplicated connection of the individual components of the ventilation device also allows easy disassembly and assembly of the ventilation device, so that a cleaning is possible.

It is also advantageous that the arranged on the outside end face of the frame housing part in cross-section arcuate or the shape of a Circular segment is preferably formed in a quarter-circle and has a downwardly open air passage opening through which the air flow from the outside of the window or door controlled by the ventilation device passes into the room side of the window or door. Disturbing weather conditions, such as driving rain or strong wind, are prevented by the housing part.

The circular ring segment shape has the same effect on the wing, glazing or fixed frame on the overlying components of the ventilation device as on the optics. Furthermore, the curves, i. without corners and edges, during transport, storage and cleaning the windows or doors, damage or injuries.

According to a further advantageous feature of the invention, the housing part has a flap which regulates the air flow for limiting purposes. The flap is mounted isosceles freely rotatable transversely to the frame plane and is limited by stops in the open position and in the closed position. The flap has in cross-section on a crescent-shaped contour. In the ventilation device with pressure differences penetrating air flow is controlled by the flap and passed evenly into the interior of the room on.

To simplify the manufacture and to design a cost-effective ventilation device, the housing parts, the ventilation duct and all other components are preferably made of a plastic material.

A further advantageous embodiment provides that the ventilation device on the sash, on the frame or in a fixed frame before installation in masonry or retrofitted can be installed. The ventilation device can be mounted in a horizontal or vertical position. Depending on the volume flow for ventilation, it is also possible to incorporate several ventilation devices per window or door.
For attachment, for example, the ventilation device according to the invention on the housing part to the room-side end face and the housing part to the outside end face of the frame holes for the passage of a fastening screw to non-positive connection. However, the ventilation device can also be held by means of a positive connection on the frame.

Fig.1

eine perspektivische Ansicht eines Fensters mit schematisch dargestellter Lüftungsvorrichtung,

Fig.2

eine perspektivische Darstellung der Lüftungsvorrichtung des Fensters oder der Tür in freigegebener Lage der Öffnung der Luftdurchtrittsöffnung für den Luftstrom,

Fig.3

die Lüftungsvorrichtung in perspektivischer Darstellung in überdeckender Lage bzw. Verschlussstellung der Luftdurchtrittsöffnung für den Luftstrom,

Fig.4

eine Querschnittsansicht durch das Fenster oder die Tür der Fig.1 mit Schnitt durch die Lüftungsvorrichtung und den Zahnritzeln in freigegebener Lage der Öffnung für den Luftstroms nach Fig.2,

Fig.5

eine Querschnittsansicht durch das Fenster oder die Tür der Fig.1 mit Schnitt durch die Lüftungsvorrichtung und den Absperrelementen in freigegebener Lage der Öffnung für den Luftdurchtritt des Luftstroms nach Fig. 4 und

Fig.6

eine Querschnittsansicht durch das Fenster oder die Tür der Fig.1 mit Schnitt durch die Lüftungsvorrichtung und den Absperrelementen in überdeckender Lage bzw. Verschlussstellung der Luftdurchtrittsöffnung für den Luftdurchtritt des Luftstroms nach Fig. 3.

Further advantages of the invention will become apparent from the drawings. Show it:

Fig.1

a perspective view of a window with a schematically illustrated ventilation device,

Fig.2

a perspective view of the ventilation device of the window or the door in the released position of the opening of the air passage opening for the air flow,

Figure 3

the ventilation device in a perspective view in overlapping position or closed position of the air passage opening for the air flow,

Figure 4

a cross-sectional view through the window or the door of Fig.1 with section through the ventilation device and the sprockets in the released position of the opening for the air flow to Fig.2 .

Figure 5

a cross-sectional view through the window or the door of Fig.1 with section through the ventilation device and the shut-off elements in the released position of the opening for the passage of air through the air Fig. 4 and

Figure 6

a cross-sectional view through the window or the door of Fig.1 with section through the ventilation device and the shut-off elements in overlapping position or closed position of the air passage opening for the passage of air through the air Fig. 3 ,

A window or door construction has as basic components Fig. 1 a frame 2, which is firmly installed in a building opening and a sash 3, which is either permanently installed in the frame 2 and thus forms a fixed frame, or is rotatably attached to this and tilted. The in the Fig. 1 illustrated perspective shows an upper horizontal portion of a window construction with an upper frame frame spar and a sash below and a ventilation device 1. In overlapping position of the sash 3 to the frame 2 of the sash frame 3 frames a glass pane, not shown. The profiles of the frame 2 and the sash 3 are not detailed. For example, profiles of hollow profile bars of plastic or of light metal can be used. But they are too Profiles of a wooden material applicable. The ventilation device 1 is designed so that the sash glare or fixed frame does not need to be changed. They maintain their profile despite the installation of the ventilation device 1 unchanged. As a result, the ventilation device 1 is after Fig. 4 to Fig. 6 formed with a ventilation channel 8, which is rectangular in this embodiment and is arranged transversely to the frame plane with its longitudinal extent. The ventilation duct 8 can also be designed circular. The type of embodiment of the ventilation duct 8 determines the recess to be made in profile transversely to the frame plane in order to guide the air flow 7 from the frame outside to the frame inside. Depending on the system of the door or window manufacturer, the frame has different profile thicknesses. Due to the two-part design of the ventilation duct 8, the ventilation duct 8 by telescopically held one inside the other sliding ventilation ducts 28, 29 after Fig. 4 to Fig. 6 fit accurately.

In the embodiment according to Fig. 1 the ventilation device 1 is arranged on the casement 3 and has for forced ventilation the open state of the air passage opening 6, 31, wherein the air flow 7 is shown schematically with arrows. The air flow 7 may interfere in the open state of the air passage opening 6, 31 on the people in the room. Therefore, the room-side air passage opening 6, 31 is arranged away from the window or the door side. The sash 3 is fully or partially open by means not shown function fitting components via an operating handle.

The air passage opening 6, 31 runs after 4 to 6 from the outside end face 4 to the room-side end face 5 of the window or the door, wherein the air flow 7 from the leading ventilation channel 8 is further passed in a longitudinal direction of a wing or frame spar over a partial length thereof extending housing part 9. To regulate the air flow 7, an actuator 10 is provided in the housing part 9. To simplify the assembly and adjustability, the actuator 10 and the housing part 9 is mounted on the room-side end face 5 of the wing, glued or fixed frame resting, wherein the actuator 10 has two shut-off elements 11, 12, which by means of manual or automatic operation simultaneously can be actuated together in an opening and closing direction.

A simple and cost-effective to manufacture, with a small size and high functionality of the ventilation device 1 is effected in that shut-off 11 forms the visible room-side end face 5 of the housing part 9. In this case, the shut-off element 11 extends after Fig. 4 transverse to the frame plane from the lower longitudinal edge 13 to the upper longitudinal edge 14 and in the longitudinal direction of the frame from the end 15 to the end 16 of the housing part 9. So can be apart from other components for the design of the housing part 9, since the actuator 11, the surface of the on the room-side end face 5 arranged housing part 9 almost completely covered.

According to the representations of Fig. 1 to Fig. 6 the shut-off element 11 is formed in the form of a circular segment in cross section. By the circular segment of the entire visible area of the room side arranged ventilation device 1 is covered and used as a locomotive apparatus for the regulation of the air flow 7. For this purpose, the housing part 9 takes the bearing longitudinal edges 13,14 of the circular ring segment and the ends 15,16 in the longitudinal direction of the shut-off element 11 leader. For ease of assembly and as an optical advantage, form after Fig. 2 and Fig. 3 the housing part 9 and the shut-off element 11 a component. The shut-off element 11 is rotatably supported by a not-shown axis of rotation in the housing part 9 and limited adjustable. The housing part 9 is also adapted with its supporting ends 13 and longitudinal edges 15, 16 of the shut-off element 11 with formation of a circular ring segment shape. To Fig. 4 to Fig. 6 the ventilation device 1 on the supporting longitudinal edges 13, 14 and / or ends 15, 16 of the housing part 9 and at the free ends of the shut-off element 11, a rotation limitation. Upon manual actuation of the ventilation device 1 via the shut-off element 11, the ventilation device 1 receives an optimal position in the end stops of the overlapping position via the rotation limitation, ie until complete closure of the air flow 7 Fig. 6 takes place, or in the released position 4 and FIG. 5 for the largest possible air flow 7. Within the adjustment of the air flow 7, depending on the position of the shut-off element 11 and thus the position of the air passage opening 6 can be regulated. To the upper longitudinal edge 14 of the housing part 9, a sealing strip 17 is arranged on the shut-off element 11, which in the closed position covering the air passage opening 6 sealingly, which also has a heat-insulating and sound-absorbing effect. The sealing strip 17 thus encloses a possible free surface between the housing part 9 and the shut-off element 11 and prevents escape of the air flow 7. For fastening the sealing strip 17 on the shut-off element 11 is, as in Fig. 4 to Fig. 6 shown in Longitudinally attached to the frame plane an undercut groove into which the sealing strip 17 can be inserted laterally and is secured against pulling in the transverse direction to the frame plane.

Space saving and cost, the shut-off 11 is after Fig. 4 to Fig. 6 in which a tooth profile 19 is provided in cross-section on the inner contour 18 of the annular segment shape. Between the housing part 9 and the shut-off element 11 itself, the tooth profile 19 meshes Fig. 4 a pinion 20, which in turn, starting from its axis of rotation 21 meshes with another pinion 22. The pinion 22 is in direct communication with a second shut-off element 12. To simplify the closing of the ventilation channel 8 with a small space requirement of the shut-off element 12, the axis of rotation 23 of the shut-off element 12 and the pinion 22 extends through the median plane 24 of the ventilation channel 8, wherein the first Shut-off 11 synchronously causes a pivoting in the opposite direction of the second shut-off element 12 when actuated.

The pivotable arrangement of the actuator 10 allows through the large air passage openings 6 in the shut-off elements 11, 12 an intensive exchange of air, since between the shut-off elements 11, 12 and the housing part 9 no narrowing fixed components must be arranged. The arrangement of the visibly on the room-side end face 5 covered shut-off element 11 and arranged in the ventilation device 1 roller-shaped shut-off element 12 results together with the housing part 9 in a closed position after Fig. 6 a double-walled enclosed air chamber 25 with a good thermally insulating bivalve finish.

For actuating the ventilation device 1, a handle 27 is provided on the room-side surface 26 of the circular ring segment of the shut-off element 11, which is either designed in one piece with the shut-off 11, or can be clipped into a recess of the shut-off element 11.

The necessary to guide the air flow 7 elements of the ventilation device 1 exist after Fig. 4 to Fig. 6 from the ventilation duct 8, which in turn is divided into an inner air channel 28 and an outer air channel 29, which are designed to be displaceable held each other, as well as from the housing part 9 and on the wing, glued or fixed frame on the outside end face 4 of the window or the door arranged housing part 30. In this case, the inner air channel 28 on the frame-side end face 5 facing side with the housing part 9 and the outer air duct 29 with the housing part 30 by a positive and / or frictional connection can be connected. Both housing parts 9, 30 cover the ventilation duct 8 completely. The uncomplicated connection of the individual components of the ventilation device 1 also allows easy disassembly and assembly of the ventilation device 1, so that a cleaning is possible.

The housing part 30 is formed in cross-section circular ring segment-shaped preferably a quarter-circle and has a downwardly open air passage opening 31, via which the air flow 7 according to the arrows Fig. 4 from the outside of the window or the door controlled by the ventilation device 1 led into the room side of the window or door passes. Disturbing weather conditions, such as driving rain or strong wind, are prevented by the housing part 30.

The circular ring segment shape has the same effect on the wing, glazing or fixed frame on the overlying components of the ventilation device 1 as on the optics. Furthermore, prevent the curves during transport, storage and cleaning the windows or doors damage or injury.

The housing part 30 is after Fig. 5 to Fig. 6 a flap 32 which regulates the flow of air 7 for limiting purposes. The flap 32 is mounted isosceles freely rotatable transversely to the frame plane and is by drawing not shown stops in the open position to Fig. 4 and in the closed position Fig. 5 and Fig. 6 limited. The flap has in cross-section on a crescent-shaped contour. Already in the ventilation device 1 with pressure differences penetrating air flow 7 is controlled by the flap 32 and passed evenly into the room interior.

To simplify the production and to design a cost-effective ventilation device 1, the housing part 9, 30, the ventilation duct 8 and all other components are preferably made of a plastic material.

In the illustrated embodiment according to Fig. 1 is a ventilation device 1 in the sash 3 complained. As already described, the ventilation device 1 can also be installed on the frame 2 or in a fixed frame, not shown. The ventilation device 1 is in a horizontal or vertical position mountable. It is also possible to provide several ventilation devices 1 per window or door, depending on the volume flow for ventilation.
Zeichnerisch not shown, the ventilation device 1 according to the invention on the housing part 9 to the room-side end face 5 and the housing part 30 to the outside end face 4 of the frame holes for the penetration of a fastening screw to non-positive connection, or is held by means of a positive connection to the frame.

LIST OF REFERENCE NUMBERS

1

breather

2

frame

3

casement

4

Outside face

5

Room-side end face

6

Air passage opening

7

airflow

8th

ventilation duct

9

housing part

10

actuator

11

shut-off

12

shut-off

13

longitudinal edge

14

longitudinal edge

15

The End

16

The End

17

weatherstrip

18

inner contour

19

tooth profile

20

pinions

21

axis of rotation

22

pinions

23

axis of rotation

24

midplane

25

air chamber

26

Room side surface

27

handle

28

Inner air duct

29

Outer air channel

30

housing part

31

Air passage opening

32

flap

Claims (11)

1. Ventilation device (1) for a window or a door with a blind frame and casement frame (2,3) or with a fixed frame, with an air passage opening (6, 31) arranged thereupon from the outside-facing surface (4) to the room-facing surface (5) of the window or door for a ventilation duct (8) that routes the air flow (7) and a housing part (9, 30) which runs in the longitudinal direction of a blind frame and casement frame (2,3) or a fixed frame over a partial length thereof, wherein the ventilation device (1) has a control element (10) to regulate the air flow (7), which is located, with the housing part (9), lying on the room-facing surface (5) of the casement frame, blind, frame, or fixed frame, wherein the control element (10) comprises two blocking elements (11,12) which can be actuated by means of manual or automatic actuation in an opening or closing direction at the same time, wherein the blocking element (12) is in direct connection with a toothed pinion (22), which meshes with a toothed pinion (20) which is in direct connection with the blocking element (11), and the blocking element (12) in the closed position of the control element (10) closes the ventilation duct (8) and cuts off the air flow (7), characterized in that the one blocking element (11) forms the visible room-facing surface (5) of the housing part (9), whereby the blocking element (11) in cross-section exhibits the form of a circular ring segment, which is guided along its longitudinal edges (13, 14) and ends (15, 16) in the housing part (9), and along an inner contour (18) of its circular ring segment form exhibits a toothed profile (19), which meshes with the toothed pinion (20) mounted on an axis of rotation (21), whereby the blocking element (11) and the load-bearing longitudinal edges (13, 14) in the form of the circular ring segment cover the entire visible region of the ventilation device (1) arranged on the room side, and is used as the movement apparatus for the regulation of the air flow (7).
2. Ventilation device (1) for a window or a door according to claim 1, characterized in that at least one longitudinal edge (13) of the blocking element securely (11) covers, by means of a sealing strip (17), the closure position.
3. Ventilation device (1) for a window or a door according to claim 1, characterized in that the toothed pinion (20) meshes with a further toothed pinion (22), the axis of rotation (23) lies on the middle plane (24) of the ventilation duct (8) and which is coupled with a second blocking element (12), such that the first blocking element (11), on actuation, synchronously causes a pivoting in the opposite direction of the second blocking element (12).
4. Ventilation device (1) for a window or a door according to one of the preceding claims 1 or 3, characterized in that, in the closed position of the control element (10), the blocking element (11) covers the visible room-facing surface (5), and the roller-shaped blocking element (12) arranged in the ventilation device (1) closes the ventilation duct (8) and cuts off the air flow (7), wherein an isolating air chamber (25) is formed between the control element (10) and the housing part (9).
5. Ventilation device (1) for a window or a door according to claim 1, characterized in that the actuation of the control element (10) takes place by way of a handle (27) arranged on the room-side surface (26) of the circular ring segment of the blocking element (11).
6. Ventilation device (1) for a window or a door according to claim 1, characterized in that the ventilation duct (8) which routes the air flow (7) consists of an inner air duct (28) and an outer air duct (29) designed to be capable of being moved into one another, wherein the inner air duct (28), on the side facing the control element (10), is in connection with the housing part (9), and the outer air duct (29) enters into connection with a housing part (30) arranged at the casement frame, blind frame, or fixed frame on the outside-facing surface (4) of the window or the door.
7. Ventilation device (1) for a window or a door according to claim 1 or 6, characterized in that the housing part (30) in cross-section is formed in the form of a circular ring segment, preferably quadrant shaped, and comprises an air passage opening (31) opening downwards for the air flow (7).
8. Ventilation device (1) for a window or a door according to claim 1, characterized in that the housing part (30) comprises a flap (32) which regulates the air flow (7).
9. Ventilation device (1) for a window or a door according to claim 8, characterized in that the flap (32) in cross-section exhibits a sickle-shaped contour.
10. Ventilation device (1) for a window or a door according to claim 1, characterized in that the component parts forming the ventilation device (1) are preferably made of a plastic material.
11. Ventilation device (1) for a window or a door according to claim 1, characterized in that the ventilation device (1) can be mounted on the casement frame, blind frame, or fixed frame of the window or the door in a horizontal or vertical position, wherein the room-side air passage opening (6) is arranged on the side facing away from the window or the door.

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