DK2791452T3 - Ventilation device for a window or door - Google Patents

Description

The present invention relates to a ventilation device for a window or a door having a blind frame and a casement frame in accordance with the generic part of claim 1.

Such windows or doors are already known in a many different embodiments.

From DE 3120694 A1 a ventilation device for a window or a door with a blind frame and casement frame is known, wherein the ventilation device is arranged in the blind frame, which for ventilation can be connected by openings with an interior and an exterior, in order to allow for a limited air exchange between the interior and exterior. To achieve this, outer and inner ventilation slots are provided in the upper or lower horizontal blind frame, which by means of outer and inner pivot profile parts can be actuated by means of a handle arranged on the inner pivot profile into an open or closed position.

Disadvantageous with the ventilation device described above for a window or a door is the fact that the ventilation device in cross-section comprises the entire pace of the blind frame, which can lead to an impairment of the strength of the window or the door, such that recourse must be made to special expensive materials. Moreover, the ventilation device cannot be mounted in conventional windows or doors, or only with considerable expense and effort. For example, for stability, and also for thermal separation, plastic windows or aluminium windows are provided inside the blind frame with chambers, which are formed by a plurality of webs, or also steel reinforcements, which, during the jointing of the individual blind frame parts, must be processed and machined in order for the ventilation device to be fitted. With both ready-made aluminium or plastic casement frames, as well as with wooden casement frames of a windows or a door, the installation of the ventilation device is not possible. Moreover, the arrangement of the function fitting components for closing or tilting the window or door, which can occupy the area of the joint space, are secured by securing screws to the blind frame, and penetrate into the structural space of the ventilation device, as a result of which the function of the ventilation device may be impaired, depending on the length or location of the securing screw.

Ventilation devices are also known which extend substantially inwards on the room-facing surface of the casement frame or blind frame. As a result, the appearance of the window or door is distorted. The greater the projection on the window or door due to the ventilation device, the greater is the risk that, during storage, transport, or cleaning of the window or door, damage or injury may be caused.

The invention is therefore based on the object of providing a window or door with an easily fitted and functionally reliable ventilation device which can also be retrofitted particularly easily to different variants of windows and doors with little working on the casement frame, blind frame or fixed frame, and overcomes all the disadvantages referred to heretofore.

This object is solved by the means of the characterization part of claim 1. A window or door structure has, as basic component parts, a blind frame, which is securely built into an opening in a building, and a casement frame, which is either installed securely into the blind frame, and therefore forms a fixed frame, or is attached to this such a to be movable by rotation or tilting. The profiles of the blind frame and of the casement frame are not described in detail. Use may be made, for example, of profiles of hollow profile rods made of plastic or light metal alloy. Profiles made of a wood material can also be used. The ventilation device is advantageously designed in such a way that the casement frame, blind frame, or fixed frame do not need to be modified. Despite the installation of the ventilation device, they will retain their profiling unchanged.

As a result of this, the ventilation device comprises, transverse to the plane of the frame, a ventilation duct, which with a rectangular or circular shape is simple and economical to manufacture. The type of design of the ventilation duct determines the accommodation arrangement to be adopted in the profile transverse to the plane of the frame, in order to conduct the air flow from the frame outside surface to the frame inner side. Depending on the system of the manufacturers of the door or window, the frame comprises different profile thicknesses. Due to the two-part arrangement of the ventilation duct, the ventilation duct can be secured with a precise fit thanks to ventilation ducts being retained so as to be displaceable into one another in a telescopic manner.

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

Moreover, the room-side air passage opening is arranged on the side facing away from the window or door. As a result, air flows are avoided which might have a disturbing effect on persons present in the room.

According to a further advantage, the air passage opening runs from an outsidefacing surface to a room-facing surface of the window or door, wherein the air flow is conducted from a first housing part through the ventilation duct conducting the air flow into the room-side housing part. To regulate the air flow, a control element is provided in the housing part. To simplify the assembly and adjustability, the control element and the housing part are secured lying on the room-facing surface of the casement, blind, or fixed frame, wherein the control element comprises two blocking elements, which can be actuated simultaneously into an opening or closing direction by means of manual or automatic actuation.

An embodiment which is simple and economical to produce, with small structural size and high functional performance of the ventilation device can be obtained in that the blocking element forms the visible room-facing surface of the housing part. In this situation, the blocking element extends transverse to the plane of the frame, from the lower longitudinal edge to the upper longitudinal edge, and in the longitudinal direction of the frame from the one end to the other end of the housing part. Accordingly, it is possible to do without further structural components to make up the housing part, since the control element almost entirely covers the surface of the housing part arranged on the room-facing surface.

It has also proved advantageous for the blocking element to comprise in cross-section the shape of a circular ring segment. As a result of the circular ring, the entire visible region of the ventilation device arranged on the room side is covered, and used as the movement apparatus for the regulation of the air flow. To attain this, the room-side housing part accommodates the load-bearing longitudinal edges of the circular ring segment and the ends in the longitudinal direction of the blocking element such as to route them. To simplify the assembly and as a visual advantage, the room-side housing part and the blocking element form one component part. In this situation, the blocking element is retained in the housing part with limited adjustability, and rotatable about an axis of rotation. In order to retain the form, the housing part is likewise adapted, at its load-bearing ends, to the blocking element, with the formation of a circular ring segment.

It is also advantageous that the load-bearing ends of the housing part and the free ends of the blocking element present a rotation limitation, such that no further components are required in order to limit the rotational movement. With the manual actuation of the ventilation device by way of the blocking element, the ventilation device, as a result of the rotational limitation, obtains an optimum position in the end positions in the covering position, i.e. until a complete closure of the air flow takes place, or, in the exposing position, the greatest possible air flow. Within the adjustment path, the air flow can be regulated according to the position of the blocking element and the position of the air passage opening.

In order to prevent an escape of the air flow and leaks, a sealing strip is arranged towards the upper end of the housing part at the free longitudinal edge of the blocking element, which in the closed position covers the air passage opening with a secure closing effect, which also has a heat-insulating and sound-insulating effect. The sealing strip therefore encloses a space between the housing part and the blocking element, and prevents an escape of the air flow. In order to secure the sealing strip at the blocking element, a back-cut groove is provided in the longitudinal direction to the plane of the frame, into which the sealing strip can be pushed laterally, and is secured against drawing out in the transverse direction to the plane of the frame.

The blocking element is space-saving and economical in the embodiment according to which, in the cross-section along the inner contour of its circular ring segment form, a tooth profile is provided. Between the housing part and the blocking element itself, the tooth profile meshes with a toothed pinion, which in turn, moving out from its axis of rotation, meshes with a further toothed pinion. The latter toothed pinion stands in a direct connection with a second blocking element.

To simplify the closure of the ventilation duct with low spatial requirement of the second blocking element, facing towards the ventilation duct, the axis of rotation of the blocking element and of the toothed pinion runs through the mid-plane of the ventilation duct, wherein the first blocking element, on actuation, synchronously causes a pivoting movement in the opposite direction of the second blocking element.

It is also advantageous that, due to the pivotable arrangement of the control element of the blocking element, the air flow comprises closing blocking elements and large air passage openings, which guarantee an intensive air exchange, since there is no need for fixed components to be arranged inside the blocking element and the housing part, which could have a narrowing effect. The arrangement of the covering blocking element visible on the room-facing surface and the rollershaped blocking element arranged in the ventilation device results, together with the housing part in a closed position, in a double-walled enclosed air chamber, with a good thermally-insulating two-shell closure. A contribution to simple and economical manufacture is that, for the actuation of the ventilation device, a handle is provided on the room-side surface of the circular ring segment form of the blocking element, which is designed either as being of one part with the blocking element, or can be clipped into a cut-out opening of the blocking element.

In order to realize economic manufacture as well as simple and rapid assembly of the ventilation device, the elements of the ventilation device required to route the air flow out of the ventilation duct, which in turn is divided into an inner air duct and an outer air duct, formed such as to be capable of sliding into one another, consist of both the room-side housing part and a housing part arranged at the casement frame, blind frame, or fixed frame on the outside-facing surface of the window or the door.

In this situation, the inner air duct on the side facing the frame-side face can be connected to the housing part and the outer air duct to the housing part by a positive or non-positive fit connection. Both housing parts cover the ventilation duct completely. The uncomplicated connection of the individual components of the ventilation device also allows for easy disassembly and assembly of the ventilation device, such that cleaning is possible.

It is also advantageous that the housing part arranged on the outside-facing surface of the frame is formed in cross-section as an arc of a circle or the form of a circular ring segment is preferably a quadrant, and comprises an air passage opening which is open downwards, by means of which the air flow from the outside of the window or door is routed, regulated by the ventilation device, into the room side of the window or door. Disturbing effects of the weather, such as driving rain or strong wind, are prevented by the housing part.

The circular ring segment form likewise has an advantageous effect on the components of the ventilation device lying on the casement frame, blind frame, or fixed frame, as well as on the visual appearance. Moreover, the rounding of the elements, i.e. without corners and edges, prevents damage or injury during transport, storage, and when cleaning the windows or doors.

According to a further advantageous feature of the invention, the housing part comprises a regulating flap for limiting the air flow. The flap is mounted transverse to the plane of the frame with limbs of equal size, such as to be freely rotatable, and is limited by stops in the open position and in the closed position. To achieve this, the flap exhibits a sickle-shaped contour in cross-section. An air flow penetrating Into the ventilation device with pressure differences is controlled by the flap and is conducted in a uniform manner further into the room inner side.

In order to simplify manufacture, and to design an economical ventilation device, the housing parts, the ventilation duct, and all further components are preferably made of a plastic material.

An advantageous embodiment makes provision for the ventilation device at the casement frame, the blind frame, or in a fixed frame, before assembly, to be mounted in masonry or to be retrofitted. In this situation, the ventilation device can be installed in a horizontal or vertical position. Depending on the volume flow for the ventilation, there is also the possibility of a plurality of ventilation devices to be installed per window or door.

For the securing, the ventilation device according to the invention comprises, for example, on the housing part to the room-facing surface and on the housing part to the outside-facing surface, holes for the engagement of a securing screw for non-positive connection. The ventilation device can, however, also be held in the frame by a positive fit connection.

Further advantages of the invention are derived from the drawings. These show:

Fig. 1 A perspective view of a window with a schematically represented ventilation device,

Fig.2 A perspective representation of the ventilation device of the window or door in the exposed position of the opening of the air passage opening for the air flow, Fig.3 The ventilation device in a perspective representation in the covering position or closed setting of the air passage opening for the air flow,

Fig.4 A cross-sectional view through the window or the door from Fig. 1, with a section through the ventilation device and the toothed pinions in the exposed position of the opening for the air flow according to Fig.2,

Fig.5 A cross-sectional view through the window or the door of Fig. 1, with a section through the ventilation device and the blocking elements in the exposed position of the opening for the air passage of the air flow according to Fig. 4, and Fig.6 A cross-sectional view through the window or the door from Fig. 1 with a section through the ventilation device and the blocking elements in the covered position or closed setting of the air passage opening for the air passage of the air flow according to Fig. 3. A window or door construction has, as basic constituent parts according to Fig. 1, a blind frame 2, which is securely integrated into an opening in the building, and a casement frame 3, which is either built into the blind frame 2, and thereby forms a fixed frame, or is attached to this such as to capable of movement by rotation or tilting. The perspective representation shown in Fig. 1 shows an upper horizontal region of a window construction with an upper blind frame spar and, arranged beneath this, a casement frame spar and a ventilation device 1. In the covered position of the casement frame 3 to the blind frame 2, the casement frame 3 frames a glass pane, not shown. The profiles of the blind frame 2 and of the casement frame 3 are not describe in detail. Use can be made, for example, of profiles of hollow profile rods made of plastic or of lightweight metal alloy. Profiles made of a wood material may also be used, however. The ventilation device 1 is designed in such a way that the casement frame, blind frame, or fixed frame do not need to be altered. Despite the installation of the ventilation device 1, they retain their profile form unchanged. As a consequence of this, the ventilation device 1 according to Fig. 4 to Fig. 6 is formed with a ventilation duct 8, which in this embodiment is formed as rectangular, and is arranged with its longitudinal extension transverse to the plane of the frame. The ventilation duct 8 can, however, also be designed as circular. The type of the embodiment of the ventilation duct 8 determines the cut-out which is to be made in the profile transverse to the plane of the frame, in order to conduct the air flow 7 from the frame outside to the frame inside. Depending on the system of the manufacturers of the door or window, the frame exhibits different profile thicknesses. Due to the two-part design of the ventilation duct 8, the ventilation duct 8 is secured in a precise fit by ventilation ducts 28, 29, according to Fig. 4 to Fig. 6, which are retained such as to be moved into one another in telescopic fashion.

In the embodiment according to Fig. 1, the ventilation device 1 is arranged at the casement frame 3, and, for forced ventilation, presents the open state of the air passage opening 6, 31 auf, wherein the air flow 7 is represented schematically by arrows. The air flow 7 can, in the opened state of the air passage opening 6, 31, have a disturbing effect on persons present in the room. Accordingly, the room-side air passage opening 6, 31 is arranged on the side facing away from the window or door. The casement frame 3 is to be opened fully or partially by means of function fitting parts, not shown, by way of an actuating handle.

The air passage opening 6, 31 runs, according to Fig. 4 to Fig. 6, from the outside-facing surface 4 to the room-facing surface 5 of the windows or door, wherein the air flow 7 is conducted from the guiding ventilation duct 8 onwards into a housing part 9, running in the longitudinal direction of a casement or frame spar over a part length thereof. To regulate the air flow 7, a control element 10 is provided in the housing part 9. To simplify the assembly and adjustability, the control element 10 and the housing part 9 are secured 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 simultaneously and jointly into an opening and closing direction.

An embodiment which is simple and economical in manufacture, with small installation size and high functional performance of the ventilation device 1, is achieved in that the blocking element 11 forms the visible room-facing surface 5 of the housing part 9. In this situation, the blocking element 11 extends, according to Fig. 4, transversely to the plane of the frame, from the lower longitudinal edge 13 as far as the upper longitudinal edge 14, and in the longitudinal direction of the frame from the end 15 as far as the end 16 of the housing part 9. In this way, it is possible to do without further components to form the housing part 9, since the control element 11 almost completely covers the surface of the housing part 9 arranged on the room-facing surface 5.

According to the representations in Fig. 1 to Fig. 6, the blocking element 11 forms in cross-section a circular ring segment shape. By way of the circular ring segment, the entire visible region of the ventilation device 1 arranged on the room side is covered, and is used as the movement apparatus for the regulation of the air flow 7. To achieve this, the housing part 9 accommodates the load-bearing longitudinal edges 13, 14 of the circular ring segment and the ends 15, 16 in the longitudinal direction of the blocking element 11 such as to guide them. In order to simplify the assembly, and as a visual advantage, according to Fig. 2 and Fig. 3 the housing part 9 and the blocking element 11 form one component part. The blocking element 11 is retained in the housing part 9 rotatable about an axis of rotation, not shown, with limited adjustability. The housing part 9 is likewise adapted, with its load-bearing ends 13 and longitudinal edges 15, 16 to the blocking element 11, with the formation of a circular ring segment form. According to Fig. 4 to Fig. 6, the ventilation device 1 comprises, at the load-bearing edges 13, 14 and/or ends 15, 16 of the housing part 9, and at the free ends of the blocking element 11, a rotation limitation. At manual actuation of the ventilation device 1 by means of the blocking element 11, the ventilation device 1 obtains, by means of the rotation limitation, an optimum position in the end stops of the covering position, i.e. until a complete closure of the air flow 7 according to Fig. 6, or in the exposed position according to Fig. 4 and Fig. 5 for the greatest possible air flow 7. Within the adjustment path, the air flow 7 can be regulated according to the position of the blocking element 11, and thereby the position of the air passage opening 6. Arranged at the upper longitudinal edge 14 of the housing part 9, at the blocking element 11, is a sealing strip 17, which in the closed position covers the air passage opening 6 with a secure closing effect, which also has a heat-insulating and sound-insulating effect. The sealing strip 17 therefore encloses a possible clear space between the housing part 9 and the blocking element 11, and prevents an escape of the air flow 7. In order to secure the sealing strip 17 at the blocking element 11, as shown in Fig. 4 to Fig. 6, a back-cut groove is provided in the longitudinal direction to the plane of the frame, into which the sealing strip 17 can be pushed laterally, and is secured against drawing out in the transverse direction to the plane of the frame.

The blocking element 11 according to Fig. 4 to Fig. 6 is space-saving and economical, according to which, in cross-section, on the inner contour 18 of the circular ring segment form, a tooth profile 19 is provided. Between the housing part 9 and the blocking element 11 itself, the tooth profile 19 according to Fig. 4 meshes with a toothed pinion 20, which in turn, moving out from its axis of rotation, meshes with a further toothed pinion 22. The toothed pinion 22 stands in a direct connection with a second blocking element 12. To simplify the closure of the ventilation duct 8 with low spatial requirement of the blocking element 12, the axis of rotation 23 of the blocking element 12 and of the toothed pinion 22 runs through the mid-plane 24 of the ventilation duct 8, wherein the first blocking element 11, on actuation, synchronously causes a pivoting movement in the opposite direction of the second blocking element 12.

The pivotable arrangement of the control element 10 allows, through the large air passage openings 6 in the blocking elements 11,12, an intensive air exchange, since there is no need for fixed components to be arranged between the blocking elements 11, 12, and the housing parts 9, which could have a narrowing effect. The arrangement of the covering blocking element 11 visible on the room-facing surface 5 and the roller-shaped blocking element 12 arranged in the ventilation device 1 results, together with the housing part 9 in a closed position according to Fig. 6, in a double-walled enclosed air chamber 25, with a good thermally-insulating two-shell closure.

To actuate the ventilation device 1, a handle 27 is provided on the room-facing surface 26 of the circular ring segment of the blocking element 11, which is designed either as being of one part with the blocking element 11, or can be clipped into a cut-out opening of the blocking element 11.

The elements of the ventilation device 1 required to route the air flow 7 consist, according to Fig. 4 to Fig. 6, of the ventilation duct 8, which in turn is divided into an inner air duct 28 and an outer air duct 29, which are designed to be held such that they can be moved into one another, as well as of the housing part 9 and a housing part 30, arranged at the casement frame, blind frame, or fixed frame on the outwards-facing surface 4 of the window or door. In this situation, the inner air duct 28 on the side facing the frame-side surface 5 can be connected to the housing part 9, and the outer air duct 29 to the housing part 30 by a positive and/or non-positive connection. Both housing parts 9, 30 cover the ventilation duct 8 completely. The uncomplicated connection of the individual component parts of the ventilation device 1 also allows for simple disassembly and assembly of the ventilation device 1, such that cleaning is possible.

The housing part 30 is formed in cross-section preferably in circular ring segment form, preferably quadrant, and comprises an air passage opening 31 open downwards, via which the air flow 7, according to the arrows in Fig. 4, is routed in a regulated manner from the outside of the window or the door through the ventilation device 1 into the room side of the window or the door. Disturbing effects of the weather, such as driving rain or strong wind, are prevented by the housing part 30.

The circular ring segment form likewise has an advantageous effect on the components of the ventilation device 1 lying on the casement frame, blind frame, or fixed frame, as well as on the visual appearance. Moreover, the rounding of the elements prevents damage or injury during transport, storage, and when cleaning the windows or doors.

The housing part 30 comprises according to Fig. 5 to Fig. 6 a flap 32 which regulates the air flow 7 in order to limit it. The flap 32 is mounted transverse to the plane with limbs of equal size, such as to be freely rotatable, and is limited by stops, not shown in the drawings, in the open position according to Fig. 4 and in the closed position according to Fig. 5 and Fig. 6. To achieve this, the flap exhibits a sickle-shaped contour in cross-section. An air flow 7 penetrating Into the ventilation device 1 with pressure differences is already controlled by the flap 32 and is conducted in a uniform manner further into the room inner side.

To simplify manufacture and to design an economical ventilation device 1, the housing part 9, 30, the ventilation duct 8 and all further components are preferably made of a plastic material.

In the embodiment represented according to Fig. 1, a ventilation device 1 is mounted in the casement frame 3. As already described, the ventilation device 1 can likewise be installed at the blind frame 2 or in a fixed frame, not shown. In this situation, the ventilation device 1 can be installed in a horizontal or vertical position. It is also possible for a plurality of ventilation devices 1 to be provided per window or door, depending on the volume flow for the ventilation.

Not represented in the drawing, the ventilation device 1 is provided at the housing part 9 to the room-facing surface 5 and at the housing part 30 to the outsidefacing surface 4 of the frame, holes for the passage of a securing screw for nonpositive connection, or is held in the frame by means of a positive-fit connection.

Reference number list 1 Ventilation device 2 Blind frame 3 Casement frame 4 Outside-facing surface 5 Room-facing surface 6 Air passage opening 7 Air flow 8 Ventilation duct 9 Housing part 10 Control element 11 Blocking element 12 Blocking element 13 Longitudinal edge 14 Longitudinal edge 15 End 16 End 17 Sealing strip 18 Inner contour 19 Tooth profile 20 Toothed pinion 21 Axis of rotation 22 Toothed pinion 23 Axis of rotation 24 Middle plane 25 Air chamber 26 Room-facing surface 27 Handle 28 Inner air duct 29 Outer air duct 30 Housing part 31 Air passage opening 32 Flap

Claims (11)

Ventilation device (1) for a window or door with a frame frame and a wing frame (2, 3) or with a fixed frame, with an air passage opening (6, 31) arranged therefrom from the exterior surface (4) to the room-facing surface (5) of the window or door of a ventilation duct (8) which conducts the air flow (7) and a housing part (9, 30) extending longitudinally of a frame and wing frame (2, 3) or a fixed frame above a part length thereof, wherein the ventilation device (1) has a control element (10) for controlling the air flow (7), which with the housing part (9) is located on the space-facing surface (5) of the wing frame, the frame frame or the fixed frame in which the control element (10) comprises two locking elements (11, 12) which can be simultaneously operated by manual or automatic operation in an open or closed direction, wherein the locking element (12) is in direct contact with a gear (22) which engages a gears (20) directly in contact with the shut-off element (11), and in which the shut-off element (12) in the closed position of the control element (10) closes the ventilation duct (8) and switches off the air flow (7), characterized in that one shut-off element (11) forms the visible space-facing surface (5) in the housing part (9), wherein the cross-member (11) in cross-section is in the form of a circular ring segment which is passed along its longitudinal edges (13, 14) and ends (15, 16) of the housing part (9) and along an inner contour (18) of its circular ring segment shape has a tooth profile (19) which engages the gear (20) mounted on a pivot shaft (21), whereby the locking element (11) and the longitudinal longitudinal edges (13, 14) in the form of the circular ring segment cover the entire visible area of the ventilation device (I) on the room-facing side and is used as the air flow regulating apparatus (7). Ventilation device (1) for a window or door according to claim 1, characterized in that at least one longitudinal edge (13) of the locking element (11) covers the closing position by means of a sealing strip (17) in a securely closing manner. Ventilation device (1) for a window or door according to claim 1, characterized in that the sprocket (20) engages a further sprocket (22), the axis of rotation (23) of which lies in the median plane (24) of the ventilation channel (8). and which is coupled to a second locking member (12) such that the first locking member (II) when operating synchronously causes a swing of the second locking member (12) in the opposite direction. Ventilation device (1) for a window or door according to claim 1 or 3, characterized in that the locking element (11) in the closed position of the control element (10) covers the visible space-facing surface (5) and the roll-shaped locking element (12) arranged in the ventilation device (1), the ventilation duct (8) closes and switches off the air flow (7), thereby forming an insulating air chamber (25) between the control element (10) and the housing part (9). Ventilation device (1) for a window or door according to claim 1, characterized in that the control element (10) is operated by a handle (27) arranged on the space-facing surface (26) of the locking element (11). kelringsegment. Ventilation device (1) for a window or door according to claim 1, characterized in that the ventilation duct (8) which conducts the air flow (7) consists of an inner air duct (28) and an outer air duct (29) designed to could be moved into each other, wherein the inner air duct (28) on the side facing the control element (10) is in communication with the housing part (9) and the outer air duct (29) communicates with a housing part (30) arranged at the wing frame, frame frame or fixed frame on the outward facing surface (4) of the window or door. Ventilation device (1) for a window or door according to claim 1 or 6, characterized in that the housing part (30), which in cross-section is formed as a circular ring segment, is preferably quarterly circular and comprises an air passage opening (31) for the air flow ( 7) which opens downwards. Ventilation device (1) for a window or door according to claim 1, characterized in that the housing part (30) comprises a flap (32) which regulates the air flow (7). Ventilation device (1) for a window or door according to claim 8, characterized in that the flap (32) has a cross-sectional contour in cross section. Ventilation device (1) for a window or door according to claim 1, characterized in that the components forming the ventilation device (1) are preferably made of a plastic material. Ventilation device (1) for a window or door according to claim 1, characterized in that the ventilation device (1) can be mounted on the wing frame, frame frame or fixed frame of the window or door in a horizontal or vertical position in which the room-facing air passage opening ( 6) is arranged on the side facing away from the window or door.