EP1715133B1 - A tip-over ventilation system for windows - Google Patents

Description

The invention is directed to a window or door ventilation element having at least one aeration volume flow in the window or Türfalz influencing ventilation element comprising a sealing slide, with which a formed in the sealing region of the wing flashover seal air flow path can be closed. Furthermore, the invention is directed to a window or door ventilation system, comprising a preferably to be arranged in the window or Türfalz first window or door ventilation element with a Ventilventungsvolume limiter in the form of an air or winddruck- and / or aeration volume flow dependent automatically opening and closing pendulum flap. Finally, the invention is also directed to a window or a door with a window or door ventilation element and / or a window or door ventilation system.

In order to provide sufficient fresh air, apartments must be ventilated regularly. In the case of ventilation measures, the specialist distinguishes between minimum ventilation, basic ventilation and demand ventilation in accordance with the ventilation standard DIN 1946-6 with free ventilation via external wall diffusers (ALD). The minimum ventilation is the air exchange which is necessary so that it does not cause damage to moisture, in particular mold infestation. In order to prevent mold growth, a minimum air change of 0.15 to 0.4 per hour is assumed, ie 15% to 40% of the volume of domestic air should be exchanged per hour. For basic and demand ventilation, an air exchange is required which is set at 0.5 per hour, ie an air exchange of 50% of the air volume. The minimum ventilation should be independent of the occupants and, as far as possible, self-regulating, especially if windows remain closed. The outer wall diffusers must be designed so that both minimum and basic / demand ventilation can be covered.

There are therefore window or door ventilation elements have been created, which are installed in the window or door rebate or which are subsequently attached outside or inside the window or door or which are attached to the window or door frame and a leading through the Fensterfalz Luftströmungsweg of form inside to outside or from outside to inside and thus allow an exchange of air. Many of these systems are designed as retrofittable elements and are designed so that the minimum ventilation can be carried out automatically with them. For this purpose, these ventilation elements are usually equipped with a pendulum flap. In order to subsequently be able to form a basic and / or demand ventilation on existing windows in addition to the minimum ventilation, therefore, a large number of such elements would have to be provided on a window frame, wherein the demand ventilation then can not be adjusted as a rule, as an automatic regulating pendulum flap is provided for flow limitation. Also, these known ventilation elements to be retrofitted on a design and size, which only allows to attach them when mounted on the frame or the wing of a window or a door in the upper transverse region of the window or the door. If you were to attach them, for example, in the lower transverse region or on the side on which the Schwenkschamiere are arranged, the window or the door could not tilt or pivot in its open position, since the ventilation element would hinder this due to its size.

Such a window or door ventilation element, which has these disadvantages, is sold, for example, by Gealan under the product name "Gecco3". This is a box-shaped housing in which a flap is arranged movable and lockable. This housing is placed outside on an opening of a window or door leaf to form a leading into the window or door rebate ventilation path.

A window or door ventilation element, which is arranged in the fold between the sash and the frame, is made of DE 199 29 133 A1 known. This known Lüftungselenlent is due to its arrangement in the fold but only suitable to ensure the necessary minimum ventilation.

An adjustable slide for closing ventilation openings, which is arranged in the inner region of a window frame, is further from the DE 88 00 917 U1 known.

A generic window or door ventilation element is from the DE 201 05 296 U1 known. There, a sealing slide is described, which engages in the sealing region of the wing flap seal between a window sash and a frame, wherein at this point an opening in the sash gasket is provided, which is closed by the sealing slide. The sealing slide is slidably attached to a window sash in the flow direction of the air flow path formed in the region of the sash flap. But if you would attach this known window or door ventilation element, for example, down to a window sash, it would not be possible to move the window in the tilted position in the open position befindlichem seal slide, since the slide in this open position over the lower edge of the sash too far would.

The invention is therefore an object of the invention to provide a solution that allows easy retrofitting conventional Außenwanddurchlässe occlusive windows and / or doors with a Wohnungsbelüftungselement, the ventilation element to affect without the mobility of the respective window or the respective door on each side of a window - Can be mounted or door leaf or a window or door frame.

In a window or door ventilation element of the type described, this object is achieved by the features specified in the characterizing part of claim 1.

As a result, a ventilation element is provided which is to be attached later on each side of a window or door leaf or frame, without thereby obstructing the function of the window, in particular provided tilting or pivoting movements. Due to the fact that the sealing slide is arranged displaceably transversely to the flow direction in the area of the wing flashover seal, the width and height extent of the ventilation element is so small that, without changing the usual existing fittings, the pivoting of the respective edge region of window or door wings, to which the ventilation element is mounted, remains guaranteed. Furthermore, the air flow path to the window or door rebate can be opened, closed or adjusted by means of the adjustable sealing slide, so that by means of the ventilation element an air exchange to the exterior wall passage adjacent apartment is made possible, at least in combination with the minimum ventilation ensuring further ventilation element meets the requirements of a basic and / or demand ventilation. It is a ventilation element that can be subsequently attached to a window or a door, and in particular in that only a portion of the window or door flap over seal in the area in which the ventilation element is to be used for its attachment must be removed, can also be removed back from the window. In this case, the seal must then be replaced piecewise or in sections or on the entire, concerned longitudinal side. Otherwise, the door or the window can then be used again without ventilation element. In particular, no sections in window or door or window or door frame must be incorporated to its attachment.

In an advantageous embodiment, the invention provides that the sealing slide is arranged to be adjustable perpendicular to the direction of air flow of the air flow path formed in the sealing region of the wing flashover seal.

In this case, it is further expedient if the sealing slide rests in its closed position perpendicular to the window or door frame or on the window or door, which the invention also provides.

A particularly secure closure position results according to a further embodiment of the invention in that the underside of the sealing slide in its closed position covers the air flow path formed in the sealing area of the sash overlay gasket.

The protruding from the base plate boundary webs can protrude vertically upwards or downwards from the surface and plane of the base plate or protrude in the plane of the base plate at its longitudinal edge as a nose-like extension, so that the invention further characterized in that the at least two boundary webs at least in Projecting substantially perpendicularly or at right angles from the plane of the base plate or protruding in partial extension of the surface of the base plate at its longitudinal edge in the plane of the base plate from the base plate.

A particularly flat and low-profile embodiment of the window or door ventilation element, the rotation and / or tilting movements of the window equipped therewith or the door equipped therewith not hindered, can be achieved when flat, plate-shaped elements are used. The invention therefore provides in an embodiment that the sealing slide is plate-shaped and is slidably mounted between the base plate and an upper guide plate. This makes it possible to easily realize a flat construction, adjustable ventilation element.

For maintaining the rotational and / or tilting mobility of the cooperating with the window or door ventilation element window or door leaf, it is according to further embodiment of the invention advantageous if the upper guide plate does not project beyond the window or Türflügelrahmeninnenseitige window or Türbliegerüberschlagsanlagefläche.

A particularly expedient guidance of the sealing slide on the base plate can be achieved in that the base plate or a guide plate has screw and guide dome, which engage in slot openings of the sealing slide.

In order to achieve a good sealing function of the sealing slide in the closed state of the sealing slide or of the window or door ventilation element, the invention furthermore provides that the sealing slide has on its longitudinal edge a sealing nose, preferably made of injection-molded, soft plastic.

A particularly advantageous embodiment, which allows a flexible subsequent attachment of the window or door ventilation element on each side of a window or a door is achieved according to another embodiment of the invention, characterized in that the base plate on a window or door flap or an adjacent region of window - Or door frame is attachable and the base plate and the sealing slide at least in the voltage applied to the sash overlap region of the width of the extension of the window or door wing such a width extension and height extent that in the installation and use position of the window or door ventilation element of the window or Door can be pivoted and / or tilted.

The above object is also achieved by a window or door ventilation element with an at least partially engaging in the area of the sash overlap between window or door overlap base plate with lateral guide webs and / or lateral boundary surfaces or walls and at least one of the Belüflungsvolumenstrom in window or Türfalz influencing ventilation element, wherein the base plate has on its longitudinal side at least two protruding Begrenzungsstege, which are engageably positioned in the sealing region of the wing flap seal between window or door and window or door frame to form a Luftstömungsweges, so that the window or door ventilation element on the Window or door overlap or on the adjoining area of window or door frame in a ventilating the window or door use position is attached, in which on the base plate a sealing slide in the, the air flow sweeping sweeping ventilation flow influenceable manner is arranged and the window or door ventilation element, in particular the base plate and the sealing slide, at least in the voltage applied to the sash overlap region of the width extension of the window or door has such a width extension and height extent / that in the installation and use position of the window or door ventilation element of the window or door can be pivoted and / or tilted.

To protect the sealing slide laterally against dirt entry and to give it a visually pleasing appearance, the ventilation element on the base plate lateral guide webs and / or lateral boundary surfaces or walls may have, further wherein the lateral boundary walls in which in their installation or use position the Window- or door panel frame facing portion bevels, which are dimensioned so that they do not tilt or pivot in the installation or use position of the window or door ventilation element adjacent window or door in its open position or at most in the maximum opening position of the window - Or door wing come into contact with the window or door frame. This ensures that even in this case, the rotational and / or tilting of the cooperating with the window or door leaf element window or door leaf is not affected.

In a particularly advantageous manner, the invention, by means of the sealing slide manually operable window or door ventilation element cooperates with another, preferably automatically controlling and positioned in particular in the window and Türfalz window or door ventilation element. The invention therefore provides, in order to achieve the above object, a window or door ventilation system which comprises a first window or door ventilation element to be arranged preferably in the window or door rebate Ventilation flow restrictor in the form of an air or winddruck- and / or belüttungsvolumenstromabhängig automatically opening and closing shuttle valve, which is characterized in that the window or door ventilation system comprises a second window or door ventilation element, which is designed according to one of claims 1 to 12.

As a result, a window-integrated, manually adjustable ventilation system is provided, in which the automatically controlling folding fan, for example, a sold under the term Regel-air® or as in the DE 199 29 133 A1 described Fensterfalzlüfter ensures the fulfillment of the requirements of a minimum ventilation and the manually operable window or door ventilation element according to the invention, preferably arranged as a sash overflow fan on a side edge of a window or door, meets the requirements of a basic or demand ventilation, without causing an opening of the Window sash is necessary for ventilation purposes.

The invention therefore provides, in an embodiment and further development of the window or door ventilation system, that the first window or door ventilation element provides the air exchange quantities per unit time required for free ventilation according to DIN 1946-6 for a user-independent minimum ventilation via outer wall outlets and the second window or door ventilation element in addition to the necessary for a basic and / or demand ventilation volume flow causes.

For the interaction of the first and second window or door ventilation element has been found in the context of the window or door ventilation system most effective and efficient arrangement to use the caring for the minimum ventilation first window or door ventilation element at the top of the window or door and the second window or To install the door ventilation element at the bottom of the window or the door. The invention therefore further provides for the window or door ventilation system that the first window or door ventilation element is arranged at the top of a window or a door and the second window or door element is arranged at the bottom of the window or the door.

Finally, the invention provides for solving the above problem, a window or a door, which is characterized in that it is a window or door ventilation element according to one of claims 1 to 12 arranged and / or the window or the door a window or Door ventilation system according to one of claims 13 to 15.

Fig. 1

in schematischer Darstellung ein Fenster mit einem erfindungsgemäßen Fenster- oder Türlüftungssystem;

Fig. 2

in schematischer Schnittdarstellung durch ein Fenster die Anordnung von erstem und zweitem Fenster- oder Türlüftungselement;

Fig. 3a-3c

in schematischer Draufsicht die Elemente eines erfindungsgemäßen Fenster- oder Türlüftungselementes und in

Fig. 4a-4c

in schematischer, teilweise geschnittener Seitenansicht die Positionierung eines erfindungsgemäßen Fenster- oder Türlüftungssystems an einem Fenster- oder Türflügel.

The invention is explained below by way of example with reference to a drawing. This shows in

Fig. 1

a schematic representation of a window with a window or door ventilation system according to the invention;

Fig. 2

in a schematic sectional view through a window, the arrangement of the first and second window or door ventilation element;

Fig. 3a-3c

in a schematic plan view of the elements of a window or door ventilation element according to the invention and in

Fig. 4a-4c

in a schematic, partially sectioned side view of the positioning of a window or door ventilation system according to the invention on a window or door leaf.

The Fig. 1 shows in perspective an outer wall passage in the form of a window. The window comprises a frame 1 and a pivotally and tiltably mounted sash 2. For ventilation of the voltage applied to the window living space in the Fensterfalz a ventilation path is formed, which thereby inputs and outputs from outside to inside, that the circulating between sash and frame 1 formed window seal on the outside and on the inside is partially interrupted or perforated. The window or door ventilation system comprises a first window or door ventilation element 3, which is arranged in the region of the upper transverse spar of the window frame 1 in the window blind 30. Furthermore, the window or door ventilation system includes a (second) window or Door ventilation element 4, which is arranged on the lower wing flap 25 of the window sash 2, that is, on the first window or door ventilation element 3 opposite side of the window. By formed in the outer circumferential seal between the window sash 2 and frame 1 openings flows from the outside, indicated by the arrows 5a and 5b, fresh air in the Fensterfalzbereich between frame 1 and sash 2 a. Along the Fensterfalzes the fresh air then passes both to the first window or door ventilation element 3 and flows there, indicated by arrows 6a, as supply air in the apartment interior and to the (second) window or door ventilation element 4 and flows there, indicated by arrows 6b, as supply air in the adjoining apartment interior. Depending on the temperature and weather conditions, however, the direction of flow may also run in the opposite direction, wherein it is also possible for the air flow direction in the air flow paths 5a, 6a on the one hand and 5b, 6b on the other hand to be oppositely oriented.

As in particular from the Fig. 3a to 3c it can be seen, the second window or door ventilation element 4 consists of a base plate 7, a sealing slide 8 and an upper guide plate 9, wherein the sealing slide 8 between the lower base plate 7 and the upper guide plate 9 is arranged. The base plate 7 has at a longitudinal edge projecting and at right angles angled from the base of the base plate 7 extending boundary webs 10a to 10e, in the in the Fig. 2 and 4a to 4c illustrated installation or use position of the second window or door ventilation element 4 between them form one or more slot-shaped openings 11a to 11d, which are part of the ventilation flow path 6b. Laterally, with the outer end of the two outer movement webs 10a and 10e on the outside, 7 side guide webs 12 and 13 are formed on the base surface of the base plate. Furthermore, the outer boundary webs 10a and 10e are provided with a soft sealing surface 14, 15. Overall, the outer boundary webs 10a and 10e are then formed in such a thickness that in the installation and use position of the second window or door leaf element 4 then immediately adjacent laterally flap door seal 16 in this area the same thickness extent as the respective adjacent web 10a, 10e having. This way then fits in, like this in Fig. 3c is indicated by broken lines, the second window or door ventilation element 4 with its boundary webs 10a and 10e seamlessly in the interrupted at this point, otherwise encircling door flap door seal 16 so that the guided through the slit-shaped openings 11a to 11d Lüftströmungsweg 6b is laterally sealed. In alignment with the inner three boundary webs 10b, 10c and 10d, screw and guide domes 17a to 17c are formed in the base surface of the base plate 7. The screw and guide domes 17a to 17c protrude from the base of the base plate 7 and centrally have an opening for receiving a screw thread of a screw or a fastening screw 21, by means of which the window ventilation element 4 is fixed to the sash overlap 25. In this use position of the sealing slide 8 this is guided on the base surface of the base plate 7 with its lateral edge regions between the lateral guide webs 12, 13 displaceable and is arranged perpendicular to the flow direction of the formed in the sealing region of the wing flashover seal 16 air flow path 6b. In this case, the screw and guide dome 17a to 17c engage in slot openings 18a to 18c of the sealing slide 8, so that this results in a further guidance of the sealing slide 8 on the base plate 7. On the boundary webs 10a to 10e facing longitudinal side of the sealing slide 8, a sealing edge or sealing lug 19 is arranged, which consists of a molded, soft plastic. In the installed and use position of the second window or door ventilation element 4 is in the closed position of the sealing slide 8, this sealing lug 19 to the adjacent region of the frame 1 vertically and plan and sealingly, as in the Fig. 4c is indicated. On the sealing lug 19 opposite longitudinal side of the sealing slide 8 is at right angles from the base or the basic element of the sealing slide 8 projecting a handle bar 20 is formed, which extends over the entire length of the sealing slide 8. At this handle bar 20 of the sliding on the base plate 7 mounted sealing slide 8 is manually detectable and movable in its various opening positions. In this case, there is a maximum position of the sealing slide in the closed position, as shown in the Fig. 4c is shown and the other in the maximum opening position in which the sealing lug 19 is retracted behind the longitudinal side edge of the base plate 7 delimiting the slot-shaped openings 11a to 11d. In this position, then the sealing nose 19 facing the boundary surface of the slot openings 18a to 18c on the outer boundary surface of the respective screw and guide dome 17a to 17c, as shown in Fig. 4b is shown schematically. On the base 7 of the seal slide 8 is held by means of the upper guide plate 9, by means of screws 21 through the holes 22a to 22c in the upper guide plate 9 and the hole openings 18a to 18c into the central openings of the screw and guide dome 17a to Engage 17c and thus set the upper guide plate 9 on the base plate 7, wherein the sealing slide 8 is then slidably mounted between the upper guide plate 9 and the base plate 7. On the outside, a lateral boundary wall 23, 24 is formed laterally on the base plate 7 adjacent to the lateral guide webs 12, 13. While the lateral guide webs 12, 13 are formed relatively flat and have approximately a thickness which corresponds approximately to the thickness of the base plate 7, the thickness of the plate-shaped base or the plate-shaped base element of the sealing slide 8 and the thickness of the upper guide plate 9, the Be each 1 mm to 5 mm, have the lateral boundary walls 23, 24 a significantly greater extent, which is flush with the height and extent of the handle bar 20. Overall, the sealing slide 8 is arranged in the direction transverse to and perpendicular to the flow direction of the formed in the sealing region of the wing flap seal flow path 6b, wherein it is further arranged displaceably in this direction on the base plate 7.

The second window or door ventilation element 4 has such a width extension B and such a height extent H that in the use position of the window or Türfüftungseiements 4, the adjacent window or door 2 is pivoting and / or tilting or retrofitted window or Door ventilation element 4 remains. In particular, the second window or door ventilation element 4 is dimensioned so that when fixing the window or door element 4 on the window sash 25 on the adjacent window or door frame 1 facing area and at Attachment on the frame 1 in which the adjacent window or door 2 facing area over a substantially the width B _{2 of} the window or door rollover corresponding area of the width extension B of the window or door ventilation element 4, a vertical extent H is formed, which pivoting and / or tilting of the window or door 2 allows and not prevented. In the embodiment, this is achieved in that in the mounted on the window sash 25 installation and use position of the window or door ventilation element 4, the lateral boundary walls 23, 24 have a bevel 26, which allow opening of the sash 2 in tilted position. Moreover, the height extension H _{1 of} the window or door element formed by the thickness of the superimposed elements base plate 7, sealing slide 8 and upper guide plate 9 and the screw head is also so low in this area that, for example, if no boundary walls 23 and 24 were present, Also in this case pivoting and / or tilting the sash 2 on the adjacent frame surface 27 of the window frame 1 is possible and not hindered.

This geometric design and size characteristics of the window or door ventilation element 4 makes it possible to arrange this on all sides on the side surface of a window sash 2. Also on the longitudinal sides, on which fittings are arranged, which allow pivoting of the window sash, the window or door ventilation element 4 can be arranged, since it does not hinder the pivoting movement of the window sash 2. To the embodiment of the embodiment, it further includes that in the arranged on the sash overlap 25 use position of the window or door ventilation element 4, the frame 1 facing the longitudinal edge of the upper guide plate 9 is not on the door leaf frame inside door sash bearing surface 28, shown in extension by the dashed line 28a projects , Likewise, the longitudinal edge of the base plate 7 which delimits the slot-shaped openings 11a to 11d does not overlap the door flap-override bearing surface 28.

In the in the Fig. 2 and Fig. 4a to 4c illustrated installation and use position of the window or door ventilation element 4 is this with its right angle pointing, arranged on the base plate 7 limiting webs 10a to 10e in the area of the sash gasket 16 extending reaching by means of screws 21 on the underside of the sash overlap 25. In this position, the air flow path 6b formed between the slot-shaped openings 11a to 11d can be opened or closed by manual actuation of the sealing slide 8 and thus influence the ventilation volume flow sweeping the air flow path 6b. In the in the Fig. 4c illustrated sealing position, the sealing lug 19 is flat and sealing against the frame surface 27 and closes the air flow path 6b. In this case, the underside of the sealing slide 8 in this closed position covers the air flow path 6b formed in the sealing area of the sash overlap gasket. In this case, the slot openings 18a to 18c are further formed in the sealing slide 8 so that they are completely covered in this closed position of the base of the base plate 7, so that through the slot openings 18a to 18c can not form an air flow path therethrough. In the, in the Fig. 4b illustrated, complete opening position of the window or door ventilation element 4 is the sealing slide 8 in its fully extended position, in which case the slots 18a to 18c abut the frame side edges of the screw and guide domes 17a to 17c.

As the air flow path 6b in the lower window rebate 29 continues to the fresh air inlets 5a, 5b, the air flow path 6a continues in the upper window rebate 30. In the upper Fensterfalz 30, the first window or door ventilation element 3 is arranged, which has a Luftzu- and removal automatically regulating pendulum flap 31. This first window or door ventilation elements 3 is known as Regel-air® and, for example, in the DE 199 29 133 A1 described. This first window or door ventilation element 3 sets the required for a free ventilation according to DIN 1946-6 air exchange rate per unit time for a user-independent minimum ventilation Exterior wall passages ready. The second window or door ventilation element 4, which cooperates with the first window or door ventilation element 3 arranged on the window frame 1, furthermore provides the air exchange quantity required for basic and / or demand ventilation.

The forthcoming revision of the ventilation standard DIN 1946-6 envisages a user-independent, mildew-avoiding minimum ventilation via external wall air diffusers (ALD) for the free ventilation (cross ventilation), whereby the opening of the windows for ventilation purposes for the minimum ventilation is disregarded. For the additional basic or demand ventilation required, a higher air passage or air exchange is provided than for the minimum ventilation. Outside wall diffusers (ALD) must meet these requirements in the future. While ferrous-integrated ventilation systems, such as the Regel-air® window rebate ventilator, fulfill the minimum ventilation conditions, the air exchange that takes place through them is too low for the additional fulfillment of the basic or demand ventilation. With the first and second window or door ventilation element 3, 4 existing window or door ventilation system can now meet the additional conditions of basic or demand ventilation. For this purpose, the additional, further, second window or door ventilation element 4 has been developed. This window or door ventilation system 4, which is to be positioned, in particular, on the window sash overlap 25 requires no constructional changes, in particular no milled openings on the window sash 2. In the installation position of the window or door ventilation element 4, only the sash gasket 16 is removed and at least with its boundary webs 10a and 10e, but preferably with all its boundary webs 10a-10e, in this area engaging window or door ventilation element 4 replaced, which is mounted on the window sash 25. In the closed position of the sealing slide 8 the then in the area of the recessed door flap gasket 16 with its sealing lug 19 perpendicular and plane to the frame 1 and the frame surface 27 fitting sealing slide 8 the sealing function of the door flap door seal 16. In its open position, the further air flow path 6b is opened , so that in the window or door ventilation system using the second window or door ventilation element 4 then the Requirements and conditions of the basic or demand ventilation can be met without having to operate a window sash for ventilation purposes. However, the window sash 2 can be moved at any time, because due to the geometric dimensions and design of the second window or door ventilation element 4 whose rotation and tilt function is not hindered by the designed as a sash override fan window or door ventilation element 4. The self-opening and closing shuttle flap 31 of the first window or door ventilation element 3 makes it possible to fulfill the minimum ventilation conditions specified in DIN 1946-6. The fact that the first window or door ventilation element 3 is arranged at the top in the region of the transverse spar of window frame 1 and sash 2 in the upper window rebate 30 and the second window or door ventilation element 4 is fixed on the opposite side of the sash overlap 25, results in a particularly efficient and effective interaction of the two window or door ventilation elements 3, 4. In particular, during the heating period due to the temperature differences between inside and outside the exhaust air is discharged at the top of the window (6a) and the fresh air supplied to the interior flows down over the rollover fan or the second window - Or door ventilation element 4 (6b) in the interior. Even if in the figures, the ventilation path from the outside 5a, 5b inwardly 6a, 6b is shown, the air flow can also be reversed from the inside out.

Overall, it is a window or door ventilation element or a window or door ventilation system that can be retrofitted to existing windows or doors and that requires no milling in wings or frames, but only a piece of the inside and outside circumferential rubber seal are removed got to. Also, it is easily removable again. In a deconstruction, at least in places, the rubber seal between the frame and door or window sash must be replaced. Otherwise, both first and second window or door ventilation element 3, 4 can be easily removed again.

The window or door ventilation elements, in particular the second window or door ventilation element 4 is preferably made of plastic injection molding technical produced. But it is also possible to make the base plate 7, the sealing slide 8 and the upper guide plate 9, for example, metal.

Also, the boundary webs 10b, 10c and 10d may be formed as protruding from the longitudinal edge of the base plate 7 noses - even with angled boundary webs 10a and 10e.

As an alternative to the position of the screw and guide dome 17a to 17c in the base plate 7 shown in the embodiment, it is also possible to form screw and guide dome in the guide plate 9, which then engage from above into the slot openings 18a to 18c, while the screw and Führungsdome 17a to 17c of the embodiment from below into the slot openings 18a to 18c engage.

It is also possible to dispense with the lateral guide webs 12, 13, so that the side edge of the sealing slide 8 then abut directly against the lateral boundary walls 23, 24.

While in the illustrated embodiment, the two, at least two outer boundary webs 10a, 10e projecting at right angles (up or down) from the plane of the base plate 7, it is also possible that these limiting webs 10a and 10e in partial extension of the surface of the base plate 7 at the longitudinal edge of which project in the plane of the base plate 7 in the form of nose-shaped or nose-like projections from the base plate 7.

As a window and door ventilation element 3, which provides as Fensterfalzlüfter for the minimum ventilation, a Fensterfalzlüfter is provided which comprises at its outer end a pendulum flap 31 having flow restrictor. This consists of an outwardly curved flap 32 and an inwardly projecting from the flap 32 at an angle of about 90 ° counter-plate 33. The flow restrictor is mounted rotatably in a bearing 34. The Fensterfalzlüfter has a bottom plate 35 which is flat and against which the flap 32 rests in the closed state of Fensterfalzlüfters or abuts. In the area of the exit 6a of the ventilation path is located the exit end of the Fensterfalzlüfters, which engages with pins 36 in the gap between the frame 1 and the sash 2. The bottom plate 35 of the Fensterfalzlüfters has on two opposite sides of this limiting Aufkantungen, soft from a raised edge 37 in FIG. 2 can be seen in supervision. The raised edges each have a recess 38 on the side of the window folding ventilator facing the interior of the room, in which area an edge region 39 of the window frame engages. By means not shown Schraubstütztfüßen the Fensterfalzlüfter is attached to the window frame 30 on the frame 1. The pendulum flap 31 extends along the entire Fensterfalzlüfters of the upstand 37 to the opposite upstand and is pivotally mounted on this with the bearing 34. The on the inside of the room facing side of the pendulum flap 31 arranged counter plate 33 holds the pendulum flap 31 of the flow restrictor in the in Fig. 2 illustrated opening position. As long as outside a higher pressure than inside, flows through the outside openings 5a, 5b air in the window rebate and exits after flowing through the Fensterfalzlüfters space inside 6a.

8 Pa

Luftdurchgangsmenge 4,3 m³/h

10 Pa

Luftdurchgangsmenge 4,8 m³/h

15 Pa

Luftdurchgangsmenge 6,1 m³/h

20 Pa

Luftdurchgangsmenge 5,6 m³/h

30 Pa

Luftdurchgangsmenge 4,1 m³/h

40 Pa

Luftdurchgangsmenge 4,8 m³/h

50 Pa

Luftdurchgangsmenge 5,4 m³/h

60 Pa

Luftdurchgangsmenge 6,0 m³/h.

The window rebate fan is set to provide a balanced volume flow through the window rebate 30 between 8 and 60 Pa. In this case, the flap 32 and the counter flap 33 are coordinated in terms of weight such that the supply air or the volume flow is regulated as a function of the prevailing wind load. The counter flap 33, which has the same weight as the flap 32, opens the shuttle valve to about 45 °, so that air can flow through the volume flow restrictor from the outside to the inside at low pressure differences between inside and outside and small wind movements. For larger pressure differences and stronger wind load, the shuttle flap 31 closes gradually until the flap 32 abuts against the outside edge of the bottom surface 35 in the Verschiussstellung and applies to this. Suitably, the Fensterfalzlüfter is made with flow restrictor as an injection molded part made of thermoplastic material. In addition, the counter-plate 33 is advantageously formed as inflow, so that upon impingement of air through the Fensterfalzlüfter through on the underside of the counter-plate 33 overpressure and on the top of the counter plate 33 sets negative pressure. In the free ventilation the window folding ventilator closes strong wind on the windward side, so that only a small amount of air flows through, but remains open on the leeward side, which is always a slight air circulation is guaranteed. The volume flow limiter is designed to react wind-dependent at about 20 to 30 Pa. In the following, for wind speeds between 8 Pa and 60 Pa, there are some air flow rates (volume flows) in m ³ / h which are set in each case:

8 Pa

Air flow rate 4.3 m ³ / h

10 Pa

Air flow rate 4.8 m ³ / h

15 Pa

Air flow rate 6.1 m ³ / h

20 Pa

Air flow rate 5.6 m ³ / h

30 Pa

Air flow rate 4.1 m ³ / h

40 Pa

Air flow rate 4.8 m ³ / h

50 Pa

Air flow rate 5.4 m ³ / h

60 Pa

Air flow rate 6.0 m ³ / h.

The balanced or uniform volumetric flow between 8 and 60 Pa clearly demonstrates the particularly favorable mode of action of the window rebate ventilator. On an annual average more than 99% wind speeds of less than 10 m / s = 60 Pa (wind strength between 5 and 6 to Beaufort).

The window rebate ventilator is furthermore designed in such a way that the exhaust air is guided in a controlled manner over the fitting to the beveled fold. Any precipitating condensation water is thus safely directed into the drainage area and led outwards via the normal rebate drainage.

In conjunction with exhaust air systems and with a bay ventilation, the window rebate ventilator acts as a supply air unit. When installed in the upper fold of a window or door Fensterfalzlüfter a controlled supply air is guaranteed. The fresh air supplied from the outside rises between the window sash 2 and the frame 1 already preheated upwards and after flowing through the flow restrictor into the interior of the room. Drafts do not occur because the supply air is led directly under the ceiling via the window rebate fan and the upper sash seal level. There, the supplied fresh air mixed with the unused warmer room air. Thus, the rooms are ventilated effectively and energy-saving.

The airborne sound insulation according to DIN 52210 is also excellent in the window rebate ventilator. The following values are set: Glazing 4/16/4 Sound insulation R _w = 34 dB Glazing 4/16/4 argon / SF 6 Sound insulation R _w = 37 dB Glazing 8/12 / 9GH Argon / SF 6 Sound insulation R _w = 40 dB

The window rebate fan can be installed quickly without ventilation milling and drilling work and can also be easily retrofitted into already installed windows. It can effortlessly be removed at any time and, for example, be cleaned in a dishwasher and then reinstalled.

Claims (16)

1. Window or door ventilation element (4) having at least one ventilation element which influences a ventilation volume flow in the window or door rebate (29, 30) and which comprises a sealing sliding member (8), by means of which an air flow path (6b) which is formed in the sealing region of the leaf covering seal (16) can be closed,
   characterised in that the window or door ventilation element (4) has a base plate (7) having at least two delimitation webs (10a, 10e) which protrude at one of the longitudinal sides thereof and which can be positioned so as to engage in the sealing region of the leaf covering seal (16) that forms the ventilation flow path (6b) between the window or door leaf (2) and window or door frame (1) and which together form one or more slot-like openings (11a, 11b, 11c, 11d), and in that the sealing sliding member (8) is arranged on the base plate (7) so as to be adjustable, in the direction transverse relative to the flow direction of the air flow path (6b) formed in the sealing region of the leaf covering seal (16), between a maximum open position and a closure position which closes the air flow path (6b).
2. Window or door ventilation element according to claim 1, characterised in that the sealing sliding member (8) is arranged so as to be adjustable perpendicularly relative to the air flow direction of the air flow path (6b) which is formed in the sealing region of the leaf covering seal (16).
3. Window or door ventilation element according to claim 1 or claim 2, characterised in that the sealing sliding member (8) abuts in the closure position thereof perpendicularly against the window or door frame (1) or the window or door leaf (2).
4. Window or door ventilation element according to any one of the preceding claims, characterised in that the lower side of the sealing sliding member (8) covers the air flow path (6b) formed in the sealing region of the leaf covering seal (16) in the closure position thereof.
5. Window or door ventilation element according to any one of the preceding claims, characterised in that the at least two delimitation webs (10a, 10e) protrude at least substantially perpendicularly or at right-angles from the plane of the base plate (7) or protrude from the base plate (7) in partial continuation of the face of the base plate (7) at the longitudinal edge thereof in the plane of the base plate (7).
6. Window or door ventilation element according to any one of the preceding claims, characterised in that the sealing sliding member (8) is constructed in a plate-like manner and is supported so as to be able to be slidingly moved between the base plate (7) and an upper guiding plate (9).
7. Window or door ventilation element according to any one of the preceding claims, characterised in that the upper guiding plate (9) does not protrude beyond the window or door leaf covering contact face (28) at the inner side of the window or door leaf frame.
8. Window or door ventilation element according to any one of the preceding claims, characterised in that the base plate (7) or a guiding plate (9) has screwing and guiding projections (17a, 17b, 17c) which engage in elongate openings (18a, 18b, 18c) of the sealing sliding member (8).
9. Window or door ventilation element according to any one of the preceding claims, characterised in that the sealing sliding member (8) has, at the longitudinal edge thereof, a sealing projection (19), preferably of injection-moulded soft plastics material.
10. Window or door ventilation element according to any one of the preceding claims, characterised in that the base plate (7) can be fitted to a window or door leaf covering (25) or a region of the window or door frame (1) adjacent thereto and the base plate (7) and the sealing sliding member (8), at least in the region of the width extent (B₂) of the window or door leaf (2) adjacent to the leaf covering seal (16), have such a width extent (B) and height extent (H) that, in the installation and use position of the window or door ventilation element (4), the window or door leaf (2) can be pivoted and/or tilted.
11. Window or door ventilation element according to any one of the preceding claims, characterised in that the sealing sliding member (8) is arranged on the base plate (7) so as to be adjustable in an influencable manner into the ventilation volume flow which flows along the air flow path (6b) and the window or door ventilation element (4), in particular the base plate (7) and the sealing sliding member (8), at least in the region of the width extent (B₂) of the window or door leaf (2) adjacent to the leaf covering seal (16), has/have such a width extent (B) and height extent (H) that, in the installation and use position of the window or door ventilation element (4), the window or door leaf (2) can be pivoted and/or tilted.
12. Window or door ventilation element according to any one of the preceding claims, characterised in that the base plate (7) has lateral guiding webs (12, 13) and/or lateral delimitation faces or walls (23, 24), the lateral delimitation walls (23, 24) having, in the region facing the window or door frame (1) in the installation position or position for use thereof, chamfers (26) which are sized in such a manner that, when the adjacent window or door leaf (2) in the installation position or position for use of the window or door ventilation element (4) is tilted or pivoted into its opening position, they do not move into abutment against the window or door frame (1), or at the most in the maximum opening position of the window or door leaf (2).
13. Window or door ventilation system comprising a first window or door ventilation element (3) which is to be arranged in the window or door rebate (30) and which has a ventilation volume flow limiter in the form of a shuttle valve (31) which opens and closes independently in a manner which is dependent on air or wind pressure and/or ventilation volume flow, characterised in that the window or door ventilation system comprises a second window or door ventilation element (4) which is constructed in accordance with any one of claims 1 to 12.
14. Window or door ventilation system according to claim 13, characterised in that the first window or door ventilation element (3) provides the air exchange quantities per time unit required for free ventilation in accordance with DIN 1946-6 for user-independent minimum ventilation via external wall openings and the second window or door ventilation element (4) brings about the volume flow further required for basic and/or requested ventilation.
15. Window or door ventilation system according to claim 13 or claim 14, characterised in that the first window or door ventilation element (3) is arranged in the upper portion on a window or door and the second window or door ventilation element is arranged at the bottom on the window or door.
16. Window or door, characterised in that a window or door ventilation element (4) according to any one of claims 1 to 12 is fitted thereto and/or the window or the door comprises a window or door ventilation system according to any one of claims 13 to 15.

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