EP4038255A1

EP4038255A1 - Window having a ventilation duct

Info

Publication number: EP4038255A1
Application number: EP20786513.0A
Authority: EP
Inventors: Kristof KLEINER; Arthur HOHENBERG; Jens Thorgen Wedemeyer
Original assignee: Schueco International KG
Current assignee: Schueco International KG
Priority date: 2019-10-04
Filing date: 2020-10-01
Publication date: 2022-08-10
Also published as: WO2021064140A1; DE102020120660A1; JP2022550842A; CN114502814A; CN114502814B; KR20220077915A

Abstract

A window which comprises at least the following features: - a window frame (1) composed of a plurality of frame profiles (1'), - a sash frame (2) which is composed of a plurality of frame profiles (2'), preferably has at least one pane element (3) and is movable relative to the window frame (1) at least between a closed position and a ventilation position, - wherein a peripheral frame rebate space (F) is formed between the frame profiles (1') of the window frame (1) and the frame profiles (2') of the sash frame (2), - at least one ventilation duct (8) which is formed in at least one of the frame profiles (1') of the window frame (1) or in at least one of the frame profiles (2') of the sash frame (2) and which has a first ventilation duct opening (9) and a second ventilation duct opening (10), - wherein the sash frame (2) and the window frame (1) are designed to close at least one of the ventilation duct openings (9, 10) in the first closed position and to open both ventilation duct openings (9, 10) of the at least one ventilation duct (8) in the second position - the ventilation position, wherein the one or more ventilation ducts (8) is/are respectively formed in at least one ventilation cartridge (14) or a plurality of ventilation cartridges which is/are inserted into the window frame or the sash frame or into the respective window frame profile (1') or the respective sash frame profile (2').

Description

Window with a ventilation duct

The invention relates to a window with a ventilation duct according to the preamble of claim 1.

Such a window, which enables sound-insulated ventilation in a tilted or rotated sash position, is known per se, for example from DE 102016 115422. However, the generic construction has a relatively complicated structure and should therefore in this regard and according to variants also in With regard to various other properties, it can be further optimized. The problem is that the ventilation duct formed in the frame can only be cleaned and maintained with great difficulty. In addition, the known construction requires relatively large actuation forces when closing the sash. It is particularly disadvantageous that the center seal of the window frame slides rather poorly on the insulating web of the sash frame. Another disadvantage to be mentioned is the relatively small opening width in the ventilation position. The opening width is limited, among other things, by the (short) insulating web of the sash as a sliding surface.

The invention is therefore intended to take a different approach and create an optimized window with a ventilation duct.

The invention achieves this object by the subject matter of claim 1 and claim 4 and also provides an advantageous ventilation cassette for such a window. It also creates an advantageous process.

According to claim 1, a window is created which has at least the following features: a frame composed of several frame profiles, a sash frame composed of several frame profiles, which preferably has at least one surface element and at least between a closed position and a ventilation position movable Lich relative to the frame is, wherein a circumferential frame rebate space is formed between the frame profiles of the window frame and the frame profiles of the sash, at least one in at least one of the frame profiles of the window frame or in at least one of the frame profiles of the sash formed ventilation duct, which has a first ventilation duct opening and a second ventilation duct opening , wherein the casement and the frame are designed to be in their Interaction in the first closed position to close at least one of the ventilation duct openings, and in the second position - a ventilation position - to release both ventilation duct openings of the at least one ventilation duct characterized in that the one or more ventilation ducts is / are each formed in at least one ventilation cassette or several ventilation cassettes which are / are used in the frame or sash or in the respective frame profile or the respective wing frame profile.

In this way, the formation of the ventilation duct is significantly simplified because it does not have to be laboriously formed directly in the hollow chamber profiles. Rather, it is sufficient to provide or form a recess there and then insert the preassembled ventilation cassette into the recess, e.g. to snap it into place or clamp it. This makes it simple and straightforward to form a ventilation duct in a ventilation window.

The respective ventilation cassette can be inserted in a simple manner and preferably outwardly in the closed position, invisibly into a recess of the respective frame profile or of the respective sash profile facing the frame rebate space.

In this case, it can preferably be provided that the ventilation cassette has an insert which is inserted into an in particular trough-like base element of the ventilation cassette. The use of the ventilation cassette built into the window is then particularly preferably exchangeable, which simplifies the maintenance of the ventilation window.

The invention then creates a window according to claim 4 that has the features of the ventilation window of claim 1 in the preamble and the following combination of features in the characteristic: the one or more ventilation ducts is / are each formed in at least one ventilation cassette or several ventilation cassettes / which is / are inserted into the window frame or the casement or in the respective window frame profile or the respective casement profile, the respective ventilation cassette having an insert which is inserted into a trough-like base element of the ventilation cassette, the use of the in the The ventilation cassette built into the window can be changed without having to remove the basic element. In this way, only the insert is changed in the event of maintenance, which is particularly straightforward.

The concept of the window is not too narrow. It comprises elements with a frame and a sash frame that is movable relative to it. The frame can be designed to be circumferential or not to be configured circumferentially as in the case of a door. In the sense of this document, a door is therefore also a window. The window can be built into a wall opening of a wall or wall of a building. However, it can also be designed as part of a facade or can be built into such a facade. The frame itself can therefore also form part of a facade construction.

For particularly simple maintenance, it can be provided that the ventilation cassette has a cover for covering the base element and, if applicable, the insert, and that the cover is detachably fastened to the base element with a detachable fastening means.

It can advantageously and simply be provided that a sealing groove is formed on the ventilation cassette, in particular on the cover.

It is particularly easy if the insert and the cover form a structurally changeable unit.

The respective insert can consist of one or more materials. The insert can thus have a filter material. It can also be provided that the insert has a film, in particular a heavy film.

Provision can advantageously be made for the insert, when inserted into the base element, to cause one or more deflections of an air flow and / or a subdivision of the air flow into several partial air flows. In particular, the sound insulation properties can be optimized in this way. It can be provided that the respective ventilation cassette is inserted into a respective recess of the respective frame profile or of the respective sash profile facing the frame rebate space. Because installation and maintenance are particularly easy to carry out here.

It can also be provided that several of the ventilation cassettes are inserted into recesses of the respective frame profile or of the respective sash profile facing the frame rebate space. In this way, the respective ventilation cassette can have compact dimensions and maintenance remains simple.

Preferably - but not necessarily - it can be provided that the ventilation cassette (s) are only provided in the upper side of the window frame when installed.

The invention also provides a ventilation cassette for a window according to one of the preceding claims, in which one or more ventilation ducts is / are, the ventilation cassette having an insert which is inserted into a base element of the ventilation cassette, the insert being the The ventilation cassette built into the window can be changed without having to remove the basic element. With this ventilation cassette, the maintenance of a ventilation window is particularly easy.

It can further advantageously be provided that the respective ventilation cassette has the ventilation duct openings and that these are aligned with the frame rebate space. It can be particularly advantageously provided that the ventilation duct openings in the closed state lie completely in the frame rebate space between the stop seals. This does not change the external appearance of the window. The preferred design remains. In addition, the ventilation cassettes can be changed very easily in this way. This is required roughly annually in order to meet the requirements for purity (dust, insects, etc.). No specialist is required to replace them.

It is structurally favorable and simple if the center seal is arranged on the ventilation cassette, in particular on the groove of the ventilation cassette. It can also be provided that the sash, when it is moved from the closed position into the ventilation position, can be moved at least at one point by 50 to 80 mm relative to the frame.

Overall, high sound insulation values can advantageously be achieved. The air exchange at 2 PA (Pascal air pressure) can be more than 12 m ³ / h (preferably> 14), at 10 PA> 25 m ³ / h (preferably> 28) (air pressure difference between inside and outside, e.g. caused by Wind pressure or static pressure difference). Preferably, whoever arranged in the ventilation cassettes synthetic microfibers that are able to filter pollen. This is of particular benefit to allergy sufferers.

After a specified interval, this cassette can simply be cleaned and / or changed after opening the window, for example after one or more years. The ventilation cassette can be fixed in the most varied of ways on the frame, so clamped or preferably with a loading fastening means such as at least one screw. It is also conceivable to change a filter material in the ventilation cassette if the ventilation cassette is provided with such a material.

The ventilation cassette can have a further or more of the further features directed to the ventilation cassette in the preceding claims relating to the ventilation window.

Finally, we also created a method for forming a ventilation duct in a window according to one or more of the preceding claims, characterized in that a window frame profile is provided, that a recess facing the frame rebate is then formed in the respective window frame profile, in which a ventilation duct is to be formed is and that a ventilation cassette is inserted into this recess facing the frame rebate space of the respective frame profile or the respective sash profile, which has a changeable insert.

According to a further optional embodiment, it is advantageous if at least one sealing plane is formed between the frame and the casement in the region of the frame rebate space in the open state, which is at least a seal is formed which rests at least in the ventilation position with a position sliding section on the frame or on the casement.

It can then be further provided according to a further optional embodiment that the contact sliding section in the ventilation position rests against a contact sliding strip of the sash frame or the window frame, which is formed on the wing frame or the window frame, in particular attached and with a free end into the rebate space protrudes. What is particularly advantageous about this embodiment is that the contact slide strip provides a component that is fitted to the one or more seals that are in contact with it. The shape, surface and material of the contact sliding strip can be matched to the one or more seals, so that an optimal sliding and / or rolling process is achieved. This reduces the operating forces at the window to a minimum.

In this case, it can preferably be provided that the contact sliding strip is intended exclusively for contact with the (sliding) seal arranged on the opposite frame and does not take on any other static function of the sash frame. It is therefore not an integral strip of the casement or frame that makes a significant contribution to its statics or influences it, as is the case with an insulating strip that connects two metal shells. It is true that the system sliding strip influences the closing and opening forces when the sash is closed and opened, since a corresponding sliding seal preferably rests against it and can slide if necessary during the opening and closing movement. But this is also one of its tasks and one of its advantages, to which it can be specially adapted, unlike strips or profiles, which primarily serve other purposes.

According to one embodiment, it can be provided that the contact slide strip extends in sections, in particular spaced essentially parallel, to the sash frame, in particular in such a way that the contact slide strip extends in sections parallel to an insulating web of the sash frame, which stretches two metal shells of the sash connects together and forms a portion of the rebate space.

Then, according to a further advantageous embodiment of the invention, it can advantageously be provided that the seal, which comes to rest in the open or ventilation position and possibly also in the closed position of the window, is used as a seal Center seal is formed. This central seal can in turn be advantageously designed to divide the frame rebate space into at least two frame rebate space sections so that air in the ventilation position between the two frame rebate space sections can essentially only be exchanged through the ventilation duct, the center seal having a seal base and at least one on the sealing base pivotally attached sealing section, which is articulated to the sealing base, the sealing section in any case in the area or areas in which a respective ventilation duct is formed in the ventilation position at its free end with the contact sliding section on the contact sliding bar is applied. It can also be seen in front of two or more such center seals.

It can then be provided that at least two or at least three sealing levels are formed between the frame and the sash in the area of the frame rebate space all around in the closed state. One or two of the sealing planes can also be formed by one or more stop seals between the frame and the casement. These sealing levels only exist when the sash is closed. When the sash is opened, the window is set to its ventilation position so that air can be exchanged through these open sealing levels and the ventilation duct between the rooms that the window is in when it is installed, i.e. usually between inside and outside.

According to a variant it is advantageously provided that the center seal is attached to the frame and is in particular in the ventilation position in contact with the sash.

It is preferably provided that the center seal is attached to the frame and the contact slide strip is attached to the casement. It can be expediently provided that the contact sliding strip is mounted laterally on and / or in a corner area of the respective corresponding sash profile. It can be provided that the contact sliding strip is fixed with one of its ends on a metal shell of the sash profile on the side of an insulating web of the sash profile. Because in this otherwise usually unused area of the wing frame, the means such as a groove or the like to be provided for fixing the system sealing strip can be formed and accommodated. According to a further option, it can advantageously be provided that the at least one center seal rests on the contact slide strip both in the ventilation state and in the closed state. If two center seals are provided, one of the two center seals is expediently designed in such a way and the other in such a way that it only rests on the contact slide bar in the closed position, but is spaced from it in the ventilation position, so that access to the ventilation duct is released .

It can further advantageously be provided that the one or at least one of the center seals is designed as a lip seal with one or more sealing lips, which are each designed to be flexible. Because in this way the flexible sealing lips can be used to rest on the contact slide strip, which accordingly does not or hardly hinder the opening movement or closing movement of the wing.

According to one variant, it can advantageously be provided that all of the multi-chamber profiles of the window frame and / or the casement are entirely or essentially entirely made of plastic. But you can also consist of several mate rials such as metal and plastic. Preferably, the frame and casement are each formed from profiles that have one or more metal shells and an insulating layer on one metal shell or between two metal shells. Other structures such as casement frames and / or blind frames with three metal shells and two insulating web zones between the metal shells are also conceivable.

According to a further option, one or more of the multi-chamber hollow profiles made of plastic of the window frame and / or of the sash frame, which according to a variant essentially consist of plastic, have at least one reinforcement insert. The reinforcement insert can be designed as a metal profile, for example as a tube. It is advantageous if steel pipes, for example square pipes, are simply inserted and screwed into the PVC profiles as reinforcement inserts. It can also be provided that a reinforcement reinforcement, for example made of metal in coextrusion with the multi-chamber hollow profile, is made of plastic.

Preferably, seals are used as the stop seals and / or the center seal, which are inserted into retaining grooves and held in them. Such seals are relatively inexpensive and, above all, easy to assemble. They can be laid all around without having to be cut in the corners. Due to the arrangement in retaining grooves, the seals can be easily replaced. Preferably, the seals can also be welded together.

Small, thin-walled seals offer little resistance to the seal stops. On top of that, they are not so prone to tolerance. As a result, the operating forces of the element are advantageously minimized.

The relatively small opening width (hardly noticeable when actuated) results in the prior art mentioned at the beginning by the closure means, the insulating web. This has only a limited length. In the construction according to the invention, the sliding sealing lip closes the gap between the frame and the sash up to the outer profile edge of the sash profile. This results in a larger opening width ("W"). Depending on the profile width (“B”), 50 to 80 mm are preferred. The geometry of the sliding seal, in particular the length of the sealing lip, is also decisive. Overall, therefore, even greater widths are possible. A width of 55 to 65 mm is particularly preferred. The formula for a maximum opening width for sound-insulated ventilation could be assumed to be Wmax. = B - 25 mm.

It is advantageous if the central seal has a seal base and a sealing section that is pivotably attached to the seal base. This is preferably designed as a pivotable sealing lip. The sealing section - in particular the sealing lip - can be connected to the seal base in an articulated manner.

Advantageous refinements of the invention can be found in the remaining subclaims.

The invention is described in more detail below on the basis of exemplary embodiments with reference to the drawing. The invention is not based on this Embodiments are limited but can also be implemented in a different way, literally, or in a different way. Show it:

1 in a) and b) each a section through a horizontally extending section of a first window according to the invention, which is upper horizontally in the installed state, for example, the window being shown in a) in a closed or closed position and in b) in a ventilation position;

2 in a) and b) each show a section through a horizontally extending section of a second window according to the invention, which is upper horizontally in the installed state, for example, the window being shown in a) in a closed position and in b) in a ventilation position;

3 in a) a section through a horizontally extending section of a third window according to the invention, for example, in the installed state, the window being shown in a closed position, in b) and c) a first section through a horizontally extending section, for example, in the installed state a fourth window according to the invention similar to the window from a), the window being shown in b) in a closed position and in c) in a ventilation position outside the area of a ventilation cassette, and in d) and e) a second section through another section of the fourth window according to the invention from b) and c) in the area of a ventilation cassette, which section, for example in the installed state, extends horizontally, the window in d) being shown in a closed position and in e) in a ventilation position;

4 in a) and b) a side view and a perspective view of a window frame for a further ventilation window;

5 shows a perspective view of a first ventilation cassette; 6 shows a perspective view of the first ventilation cassette from FIG. 5 with an insert that can be inserted into it;

FIG. 7 shows a detail from FIG. 6, which essentially shows the insert; FIG. FIG. 8 shows a plan view of a section of the ventilation cassette from FIG. 6; FIG. 9 shows a side view of a further ventilation window; FIG. 10 is a perspective view of a portion of the ventilation window from FIG. 9; FIG.

11 shows a perspective view of a section of the ventilation window from FIGS. 9 and 10 when an attachment profile is put on; 12 shows a side view of the ventilation window from FIGS. 10 and 11 when inserting an insert;

13 is a perspective view of a portion of the ventilation window from FIG. 11 after the insert has been inserted; and

Fig. 14 in a) to h) cross sections of ventilation cassettes with different insets.

In the following description of the figures, various Ausführungsbei are described games. The individual features of these exemplary embodiments can advantageously be used in combination with the respective further features of the exemplary embodiments. However, they can also be combined with other exemplary embodiments shown or not shown and are also suitable in each case as advantageous configurations of the subject matter described in one or more of the main claims and subclaims.

Fig. 1 shows a portion of a window. This window has a peripheral frame 1. This is composed of several frame profiles V to form a frame, in particular a rectangular shape.

On the frame 1 is a relative to the frame 1 movable wing is arranged. The sash preferably has a circumferentially closed sash frame 2 and a surface element 3, such as a pane, inserted into the sash frame 2 and received by it. The wing frame 2 is composed of several wing frame profiles 2 'to form a frame shape, in particular a rectangular shape. The frame profiles V and / or the sash profile 2 'can be designed as Mehrkam merhohlprofile. The frame profiles can be designed as plastic profiles. But they can also be designed as so-called composite profiles (Fig. 3). Then they usually consist of one or more metal profiles - also referred to synonymously here as metal shells - and one or more insulating bars. A construction is preferred in which two metal profile levels are connected to one another via an insulating level, which is usually made of plastic. But there are also other, further designs conceivable, so in particular designs with a metal profile level and egg ner insulating profile level made of plastic and designs with three metal profile levels and two insulating profile levels.

Between the frame 1 and the sash frame 2 or their frame profiles 1 ‘, 2 ein, a preferably circumferential frame rebate space F is formed in the respective exemplary embodiments. This frame rebate space F essentially extends between the outer circumference of the casement 2 and the inner circumference of the window frame 1.

The respective window of Fig. 1 or 3 is used to be able to close and open a room opening of a building (not shown here), with a room I (e.g. an area surrounding a building) from a room II (e.g. an interior of the building) is separated.

In the following, the terms "frame profile 1 '" and "frame 1" as well as "sash profile 2'" and "sash 2" are used interchangeably in each case. This is because the means and configurations discussed below can each preferably be configured circumferentially or in sections on the frame 1 or on the casement 2. They can only be formed on one of the corresponding frame profiles of the casement 2 and the window frame 1 (e.g. on the frame profiles opposite a hinge axis) or on several of the corresponding frame profiles of the casement 2 and the window frame 1. At the perpendicular to the Fig. 1 b running Be th of the window frame in the ventilation position also corresponding gaps are formed, but which do not have a constant width when opening a pivot. Nevertheless, in addition to improving the ventilation effect, ventilation ducts 8 according to the type of FIGS. 1a and 1b can also be formed on these sides. The sash frame 2 can - preferably to one side or to an adjoining the room II - have a contact web 4 with which it rests in the closed position on the frame 1 directly or via a stop seal 5 attached to the sash frame 2. Analogously - preferably to the other side or to the other adjoining room I - the frame 1 has a contact web 6 in which it rests in the closed position on the window frame 1 directly or via a stop seal 7 attached to the contact web 6. In this way, a gap S 1 and a gap S 1 between the frame rebate space F and the space I or II are tightly closed.

It is provided that at least in the frame 1 or in the casement 2 - here in the frame 1 - a ventilation duct 8 (dashed lines) is formed, which has a first ventilation duct opening 9 and a second ventilation duct opening 10. It is preferably provided that the ventilation duct openings 9 and 10 open into the frame rebate space F. The ventilation duct 8 can have a U-shape.

According to FIG. 1, it is further provided that at least the hollow profile or profiles of the window frame 1 or the casement 2, in which the ventilation duct 8 is formed, are formed as multi-chamber hollow profiles made of plastic.

These multi-chamber hollow profiles made of plastic preferably have three or more hollow chambers H1, H2, ... between the room side I and the room II. According to the exemplary embodiment in FIG. 1, seven hollow chambers H1 to H7 are provided between space I and space II (“from the inside to the outside”). Further hollow chambers can also be formed perpendicular to the direction l-ll, in particular in the area of the contact webs. These measures ensure, in each case and in combination, very good thermal insulation properties. The partition walls between the hollow chambers in the interior of the profiles are preferably thinner than the outer walls, in particular towards space I and space II.

One or more further hollow chambers H8, H9, H10, H11 can also be provided. One or more of these further hollow chambers H8, H9 can advantageously be provided in the respective contact web 4 or 6. These measures improve the soundproofing and thermal insulation, each or together. It can advantageously be provided that all hollow profiles of the window frame 1 or of the sash frame 2 are designed as multi-chamber hollow profiles made of plastic.

A wide variety of plastics are suitable as the material. The plastic is particularly preferably a PVC. It can also be provided that one or more of the multi-chamber hollow profiles made of plastic of the window frame 1 and / or one or more of the multi-chamber hollow profiles made of plastic of the sash frame 2 has / have at least one reinforcement reinforcement 11, 12.

The respective reinforcing reinforcement 11, 12 can consist of a different material than the multi-chamber hollow profile made of plastic, for example from a Me tall, in particular steel and as a metal profile, for example as a metal strip or metal plate or the like. Be formed. But it can also be designed as a reinforcement armature made of another plastic, for example from a glass fiber reinforced plastic.

The multi-chamber profiles then preferably have a continuous plastic outer wall towards a first room side I and preferably have a continuous plastic outer wall towards a second room side II.

It is further preferred that the ventilation duct 8 is formed in a recess 13, in particular in a milled cutout that is formed in the frame 1 or the sash frame 2 starting from the frame rebate space.

It can further advantageously be provided that the ventilation duct 8 is formed in a ventilation cassette 14, which is inserted into the recess 13, in particular into the cutout - in the frame 1 or the casement 2. Several of these ventilation cassettes 14 can also be provided per frame profile or on several sides of the frame (not shown). The ventilation duct 8 can be formed in just one or more of the profiles of the circumferential Blendrah mens 1 or the sash 2 in such a simple manner. It can preferably be provided that the respective ventilation cassette 14 has a channel-like or trough-like base element 15. It can also be provided that the respective ventilation cassette 14 has a cover 16.

Preferably, the cover 16 to the frame rebate area F is aligned tet.

A central seal 18, which extends into the frame rebate space F, is preferably formed on the frame profile. The center seal 18 can be attached to the ventilation cassette 14, in particular to the cover 16. For this purpose, it can be provided that a fastening means, in particular an undercut groove 17, for the central sealing device 18 is formed on the ventilation cassette 14, in particular on the cover 16.

The center seal 18 may have a seal base 20 with a sealing foot 21 which is inserted into the groove. The seal 18 can also have a sealing section 22 pivotally attached to the seal base 20. This can be designed as a single sealing lip (Fig. 1a and 1b) or as a combination of two or more sealing lips (Fig. 2a and b). The sealing section 22 can in particular have a sealing lip which is designed to be curved in itself and / or again has a hinge section so that it is divided into two lip areas that are movable relative to one another and that connect to form a longer lip.

It is particularly advantageous if the sealing section 22 can be pivoted relative to the sealing base 21 and that it is so long that it can be in contact with the sash frame 2. There it is preferably on with an end section. This end section can be arcuate.

The sealing portion 22 can aufwei sen as an end portion of a plant sliding portion 23, which can slide well on the corresponding frame profile, here the sash profile, with relative movements between the frame 1 and the sash frame 2. This results in a harmonious, slight opening movement that is not significantly hindered by the adjacent sealing surface. The contact sliding section 23 is preferably provided on the center seal where a ventilation duct 8 is also provided in the respective frame profile. This can be on one side of the window frame 1 or sash frame 2 or on several sides, preferably on three sides. If it is a tilting window, no ventilation duct is preferably formed on the side on which the tilting axis is located. The contact sliding section 23 can be dispensed with here.

It is particularly advantageous that the sealing section 22 is preferably so long that it initially remains in contact with the sash frame 2 over a certain opening angle when the sash is opened or is in contact with the sash frame 2 in a ventilation position to be explained below, or comes, so that it divides the frame rebate space F in the ventilation position into two areas, between which an exchange of air takes place essentially only via the ventilation duct 8.

The center seal 18 thus divides the frame rebate space F into a first and a second area Fl, Fll (corresponding to the orientation to the spaces I and II), between which an exchange of air is only possible via the ventilation duct 8 formed in the frame 1.

Alternatively, when the ventilation duct 8 is arranged in the frame 1, it can be seen that the center seal is attached to the sash frame 2 and extends as far as the frame 1. Even then, the sealing section 22 should preferably be so long that it then remains in contact with the frame 1 when the sash is opened, initially over a certain opening angle, or is in contact with the frame 1 in a ventilation position to be explained comes, so that it divides the frame rebate space F in the ventilation position into two areas, between which an exchange of air takes place essentially only via the ventilation duct 8.

It should be noted at this point that the arrangement can also be “completely” reversed, in which case the ventilation duct is located in the sash frame 2. The order of the center seal 18 can then be done from the casement 2 to the frame 1 or vice versa. In the ventilation position L in FIG. 1b, the sash has been moved into an open position relative to the frame 1, in particular pivoted and / or displaced.

This open position is a ventilation position. You can - but this is not compulsory - the maximum achievable position when tilting or turning or the like. Ent speak.

The column Sl and Sil are open in this position, since the limit seals 5 and 7 are no longer in contact with the frame 1 or sash 2 are the. The center seal 18 is still in contact with the sash frame 2. The wing gel is still partially within the scope defined by the frame 2. Since the center seal 18 blocks the direct transition between the spaces Fl and Fll, an exchange of air between these spaces Fl and Fll and thus also an exchange of air between the spaces I and II can only take place through the ventilation duct. This makes for a very advantageous combination from a ventilation and a sound insulation effect.

For example, if room I is the surrounding area of a building and room II is an interior space II of the building, air can flow into interior space I through gap S1, the frame rebate space section Fl, ventilation duct 8, frame rebate space section Fll and gap Sil. The sound is advantageously insulated, in particular, by deflecting the direction of the ventilation duct.

The air flowing through should therefore preferably have to change direction once or several times within the ventilation duct. This has a beneficial effect on the sound insulation.

The ventilation duct 8 has the first ventilation duct opening 9 and the second ventilation duct opening 10. These two ventilation duct openings 9, 10 can be formed in the ventilation cassette 14. The two ventilation duct openings 9, 10 are preferably formed in the cover 16.

It can further advantageously be provided that one or, particularly preferably, both ventilation duct openings 9, 10 are oriented towards the frame rebate space F.

At least one wall 19 can be formed inside the ventilation cassette 14 which divides the ventilation cassette interior into sections. This wall 19 may have at least one passage 19a. One of the ventilation duct openings 9, 10 is then located in one of the sections.

In a preferred embodiment, the ventilation duct 8 runs in an approximately U-shape within the ventilation cassette 14 (or even without a ventilation cassette). It extends from the first ventilation duct opening 9 approximately parallel to the surface element 3 into the ventilation cassette 14, then runs approximately perpendicular to the surface element 3, there it extends through the passage 19a of the wall 19 and again runs approximately parallel to the surface element up to the ventilation duct opening 10 In this way, the direction of air flowing through changes several times. This insulates or prevents the passage of sound from room I to room II and vice versa. Nevertheless, an air flow for ventilation can pass from room I to room II.

The ventilation cassette 15 can also be provided in the exemplary embodiment in FIG. 3 (see, for example, FIGS. 3b) to d), will be explained in more detail below). In FIG. 3, it can then be inserted into a chamber, in particular a milled cutout in the blind frame, in a manner analogous to FIG. 1, and / or it can completely replace one or more otherwise provided insulating webs in its area. The ventilation duct can, however, also be formed directly as a duct-like milled recess in the frame or it can be delimited by duct-like elements which are used in these milled-out conditions.

It can also be provided that a contact slide strip 24 is arranged on the casement 2 or on its casement profile 2 ''. The center seal 18 can then rest against this in the ventilation position L. The contact slide strip 24 can alternatively also be designed in such a way that the center seal 18 also rests against the contact slide strip in the closed position.

It can advantageously be provided that the contact slide strip 24 is provided relatively far from Lich and / or in a corner area of the respective casement profile 2 '. This corner area is preferably that corner area which is closest to the corresponding frame profile V in the opening and ventilation position.

For example, the contact slide strip can lie laterally outside an area that is defined by the inner and outer edge planes of the insulating glass pane. This is the case with FIG. 1, for example. In Fig. 3 this is also the case, only is here the contact slide strip is preferably attached to one of the metal profiles, in particular to one of the aluminum profiles of this construction.

The contact slide strip 24 can also extend in the rebate space to such an extent that the center seal 18 also rests against it in the closed state.

In this way, a relatively large opening width can be achieved in each case particularly advantageously in which air can be exchanged between space I and space II essentially only via the ventilation duct 8.

The system slide bar 24 can be made of metal or some other material such as plastic. They also have at least one hollow chamber themselves.

The contact slide strip 24 can also advantageously be designed as an extension strip which is fixed with a fastening, for example a tongue and groove connection, on the respective wing frame profile 2..

The frame profiles, in particular the outer walls to the rooms I and II are formed according to the embodiment of FIG. 1 from a plastic material, preferably PVC. They are preferably made entirely of plastic - possibly with the exception of internal reinforcement profiles or reinforcement reinforcements. They can be made in one piece, especially if they are made of plastic.

The outer walls of the hollow chamber profiles made of plastic preferably have a thickness of 2-4 mm, while the thickness of the partition walls forming hollow chambers H1-H7 can be 1-2 mm.

In a preferred embodiment, further reinforcement reinforcements 10, 11 made of metal are optionally arranged in the hollow chambers for static reinforcement and further subdivide them.

Particularly preferred are as frame profiles T, 2 ‘those with embedded Ver reinforcement profiles, which are manufactured by a coextrusion process, where the reinforcement is made of aluminum or fiber-reinforced plastic.

It is preferably provided that the stop seals (inside / outside) 5, 7 and the center seal 18 are formed circumferentially, that is to say on four sides of the Frame run, while the sealing portion is not provided on all sides of the frame mens.

In the construction according to the invention, the contact sliding section 23 closes the frame rebate space or gap between the frame and the sash up to the outer profile edge of the sash frame 2. As a result, a larger opening width (,, W ‘) is achieved compared to the prior art. Depending on the profile width (“B” between room I and room II), 50 to 80 mm are preferably achieved. The geometry of the sliding seal, in particular the length of the sealing lip, is also advantageous. Overall, such relatively large opening widths can be achieved in the ventilation position. A width of 55 to 65 mm is particularly preferred. The formula for a maximum opening width for sound-insulated ventilation can be assumed: Wmax.

= B - 25 mm.

A significantly larger number of hollow chambers compared to an aluminum composite structure has an advantageous effect in terms of sound insulation.

By using the contact sliding strip 24, the friction of the sliding seal on the sash frame can be reduced to a minimum. This means that the material and surface structure are adapted to one another. The sliding seal preferably has a roughened surface structure on the sliding side. The system sliding strip is preferably characterized by a sliding coating. The surface structure can of course also be designed the other way around.

The inner chamber H7 is preferably not used directly as a ventilation duct, since this is not advantageous for reasons of sound insulation. Rather, two chambers can form between the ventilation cassette wall and the outside, which are particularly preferably separated from one another by an aluminum wall.

According to Fig. 2a and b, in addition to the construction of Fig. 1a and b, a further sealing lip 25 is to be formed on the center seal 18 on the sealing base 20, which in the closed state rests on the sash frame 2, so that between the Blendrah men and the sash frame even in sections four sealing levels in the frame rebate space are advantageously formed.

A particularly advantageous feature of the contact slide strip 24 is that a component is provided which is adapted to the one or more corresponding seal (s) on which it rests. The contact sliding strip 24 can be placed on the seals in terms of shape, surface and material run, so that an optimal sliding and / or Unrolling is achieved. As a result, the operating forces at the window are reduced to a minimum. The seals “slide / roll” on the contact slide bar 24 until they no longer have any contact with the frame profile.

The best coefficients of friction are achieved with a slightly rough surface. Isolation bars are usually very smooth, so that seals tend to adhere to them. In contrast, a metal, in particular aluminum, is preferably used as the material for the contact slide strips 24. According to an advantageous variant, the rough surface can be achieved by deep-pore anodizing. Special lacquers that form a slightly rough surface after drying can also be used to create a slightly rough surface. Finally, plastics can also be applied or overmolded, which are given surfaces that are well suited for the contact strip,

Overmoulding can be implemented, for example, in an extrusion process. It is important that the system sliding strip can be optimally adjusted to the seals. This is not possible with system insulating bars.

The function of the ventilation window is given until the seal lifts off the insulating bar. This point limits the opening width. The abutment sliding strip according to the invention maintains contact with the seal significantly longer than was the case in the prior art, as a result of which a larger opening width can be achieved. Particularly advantageous hold, the contact slide strip extends to the edge of the frame profile and thus enables a larger opening width.

The system-slide bar 24 is connected to a fold-facing side of the frame profile to which it is to be attached. To do this, there are known connection options such as screws, rivets, clips, gluing, etc .. Preference is given to attaching the contact slide strip to the rebate side of the sash profile 102 close to an edge, in particular to the edge facing the interior or exterior is because in this way a relatively large opening in the ventilation position can be achieved in a simple manner.

FIG. 3 shows in a) and in b) to e) in each case a section through two different aluminum composite profile constructions consisting of a frame profile 101 and a sash profile 102. As shown by way of example in FIGS. 3a and 3b) to e), the The outer edge of the sash profile, to which the contact sliding strip is to be attached, is thus formed by an outer aluminum profile shell. Before geous is that the plant wear strips depending on requirements in different Frame profile systems can be used. The strips can also be easily replaced in the event of repairs or wear.

The frame profile 101 can - as shown in Figure 3a) to e) - have a first metal shell 101a and a second metal shell 101b in this variant. These two metal shells 101a and 101b can be connected to one another via an insulating web 101c (or several insulating webs). The sash profile 102 can also have a first metal shell 102a and a second metal shell 102b. These two metal shells 102a and 102b are connected to one another via an insulating web 102c (or several insulating webs). In the installed state, the first metal shells 101a, 102a can be oriented toward an outside I of a building and the second metal shells can be oriented toward an inside II of a building. An insulating glass pane 103 is inserted into the casement.

In the fold F between the frame profiles, a center seal 104 and a sliding seal 105 are arranged. They can be attached to the frame. The sliding seal 105 functionally also forms a kind of center seal and the center seal 104 a kind of system seal, the latter lifting off the sash when it is opened, which is not the case with the center and system seal and also with the sliding seal 105.

Compared to the seals 104 and 105, a variant of a contact slide strip 124 is provided in the fold F. This system sliding strip 124 is attached to the sash profile 102 in the area of the outside I. In this respect, it has a fastening end 124 a (which can also be called a fastening base 124 a or fastening foot). The fastening foot can be designed as a projection which engages in the groove 102d. As an alternative or in addition, it can also be clamped and / or latched there.

The fastening base 124a can thus engage in the groove 102d of the sash profile, in particular in the first metal shell 102a (preferably towards the outside I). Additionally and / or alternatively, the fastening end 124a can be fastened there with a fastening means, for example screwed tightly with a screw.

Starting from the fastening end 124a, the contact slide strip 124 protrudes somewhat into the fold F in the direction of the frame profile 101 and then extends at a distance from the insulating web 102c of the sash profile next to it in the direction of the second metal shell 102b of the sash profile, but does not touch it.

3b) to e) at its end a Kabelauf receiving groove 134 in which a cable 135, for example a cable 135 with one or more electrical and / or optical conductor (s), can be held , for example by locking.

The cable receiving groove can be formed on the insulating web 102 c) of the sash profile 102. In this way, the cable 135 is held well in the cable receiving groove 134 and protected against damage to the fold by the contact slide strip 124. In this way, the contact slide strip also forms a folded cable strip here, which significantly simplifies the laying of a cable on the sash frame. In the case of an upside-down construction with a contact sliding strip on the frame, the laying of a cable on the frame is simplified accordingly (not shown).

In the closed position shown in FIG. 3a, the two seals 104 and 105 - i.e. here the center seal 104 and the sliding seal 105 - both lie against the contact sliding strip 124.

The contact slide bar 124 protrudes in the fold over the insulating web of the wing frame, but is not thermally advantageous on the insulating web, so that a gap X can even form in sections towards the insulating web.

As a result of this advantageous embodiment, the contact slide strip 24 can be resiliently deformed in order to evade the forces acting, in particular when the sash is opened and closed. This advantageously reduces the operating forces when opening and closing the sash. In this case, in the case of composite constructions, the contact slide strip 124 can, in preferred configurations, protrude up to approximately the middle of the insulating web 102c. But it can also be designed longer. It is preferably designed in such a way that in the open position of the wing at least one of the two seals 104, 105, in particular the sliding seal 105, is in contact with it (similar or analogous to FIG. 1b).

Further ventilation windows are described below, in each of which one or more ventilation cassettes 14 are provided. The windows can per se be constructed in the manner of FIGS. 1, 2 or 3a or 3b) to e). However, they can also have a structure that differs from this in terms of details. The following description relates in particular to preferred features and variants that relate to the ventilation cassettes 14 or the structure of the windows, insofar as this relates to the integration of the ventilation cassettes 14 into the structure of the respective ventilation window. The features of the ventilation cassettes 14 described below can be implemented as advantageous options on the windows formed in FIGS. 1 to 3 or on differently constructed windows. These features can also be advantageous individually and in combination, ie they can individually or together also form part of the scope of protection or can be used to create it. In the case of the window shown in FIG. 3, the cassette would preferably replace the ventilation duct which is only partially inserted here directly into the frame profile.

Thus, FIG. 4 in a) and b) shows a side view and a perspective view of a further ventilation window which is provided for the installation of one (or more) ventilation cassettes, as is shown, for example, in FIG. 3.

The respective ventilation cassette 14 in turn has a channel-like or trough-like base element 15. This basic element 15 is also configured like a box here. The base element 15 can be designed closed on a base side and on four sides and be designed to be open on a side facing the fold in the installed state.

It can also be provided that the respective ventilation cassette 14 - in particular on this open side - has the cover 16. One or more openings 16a can be provided in this cover 16. With the cover 16, the base element 14 forms a box here all around except for the openings 16 closed. Preferably, at least two of the openings 16a, 16b are seen before. The first opening 16a then preferably forms the first ventilation duct opening 9 and the other, second opening 9b forms the second ventilation duct opening 10.

However, a plurality of first openings 16a can also jointly form the first ventilation duct opening 9 and a plurality of second openings 9b can respectively form the second ventilation duct opening 10. In this case, the first and the second ventilation duct openings can each be interrupted by first and second webs 16c, 16d. The base element 15 can then have a partially or completely circumferential flange 151. The cover 16 preferably has at least one web 161 or a bend or a corresponding flange with which the cover 16 rests on the edge or the flange 151 of the base element 15 in the assembled position. In this way, a defined position of the cover 16 is created on the base element 15 in a simple manner. In addition, the flange 151 of the base element 15 can serve as an advantageous push-in limiter when the base element 15 is pushed into the recess 13 of the frame - here the window frame - so that it is easily and correctly fitted into the recess 14 during assembly (see, inter alia, Fig . 6 and 13).

The interior of the ventilation cassette 14 may or may not be adapted to these first and second openings 16a, b.

In the latter case, the interior of the ventilation cassette is not filled, but rather empty. This achieves a good ventilation effect.

However, it can also be provided that - as already explained by way of example with regard to FIG. 1 a - the interior of the ventilation cassette 14 is partially filled. In particular, the sound insulation can be further optimized in this way. In addition, optional measures can be taken to clean the air flow.

An insert 141 can be used in the ventilation cassette, with which this subdivision is achieved. The insert 141 is particularly - but not mandatory - advantageous as an exchangeable insert. The insert can consist entirely or partially of a filter material 142. When the air flows through the ventilation cassette 14, particles are deposited on and in this area. In this way, the air stream is advantageously cleaned by filtering as it flows through the ventilation cassette 14 (see FIG. 14).

The ventilation duct 8, insofar as it extends within the ventilation cassette 14, can only form a single duct there, or it can in turn be divided into several sub-ducts 8a, 8b, 8c. In this way, the filter effect can be increased and the ventilation effect can be well controlled. In addition, the sound insulation can be varied in many ways in this way, in particular adapted to the external environment depending on the local conditions at the installation site. For example, on a ventilation window that is to be installed in a building opening that is on a busy street, more emphasis should be placed on good sound insulation than on a window that is oriented to a quiet side of the building.

In order to optimize the sound insulation, it can be provided that the insert 141 consists not only of a single material - for example the filter material 142 already mentioned - but of two or more materials. The further material can then be designed in such a way that it further optimizes the sound insulation in particular. It can advantageously be provided that the filter material 141 is coated on one side with a film 143, for example with a so-called heavy film.

The cover 16 is preferably aligned with the frame rebate area F.

It is advantageous if the cover is detachably fastened to the ventilation cassette 14, in particular if a replaceable insert 141 is inserted into the ventilation cassette. It can also form a structural unit with the insert 141.

It can then optionally be advantageously provided that the cover 16 is fastened to the ventilation cassette 14 in such a way that it can be loosened completely or almost without tools and fastened again. For this purpose, for example, a type of quick-release lock 143 with a fastening lever 144 can be provided which is rotatable and can be latched and / or clamped under an edge of a projection 144 of the base element 15 or the like. In this way, the insert 141 can be changed quickly and easily. However, it is also conceivable that a tool is used to change the insert, for example to loosen a screw which the cover holds on the ventilation cassette 14.

The center seal 18 can also be fixed on the cover 16. In particular, for this purpose it has the groove 17 on its side facing the fold, in which the sealing foot 21 of the corresponding (here: central) seal 18 can be anchored. This groove can be aligned with a corresponding groove in the fold of the window frame. In this way, this groove in the frame is advantageously not interrupted on this side of the frame and the corresponding seal can also be securely mounted in the area of the ventilation cassette 14.

A particularly advantageous feature of the ventilation cassette 14 with the exchangeable insert 141 is that the insert 141 of the cassette 14 is in operation and therefore used by the end user can be easily changed yourself. This change of insert is as simple as changing the filter of a vacuum cleaner. Overall, the ventilation cassette 14 itself is also easy to assemble. The ventilation cassette 14 can preferably be positioned invisibly in the fold, which is shown in particular in FIGS. 4a and b.

4a also shows that an additional profile 110 (FIG. 4, FIG. 11) can be placed on the upper frame profile 1 here. This additional profile 110 can be provided in order to increase the height of the frame 1 (corresponding to the designations of the directions in FIG. 10, see below). This is advantageous because, in this way, correspondingly higher ventilation cassettes 14 can be integrated into the frame 1. This can be seen particularly well by way of example from FIGS. 9 to 13, in particular FIG. 10. Then both the outer frame profile 101 and the additional profile, which is placed on the outside of the upper frame profile 101 in the installed position, have the corresponding recesses 13 for inserting the respective ventilation cassette.

The ventilation cassettes 4 are preferably mounted in the frame and preferably, exclusively in an insulating web zone, which is formed from insulating webs - that is, in particular from webs made of plastic (see Fig. 3a for the insulating webs, a cassette 14 is not shown here, it would be in Area of the insulating webs 101c provided, which (and preferably only these) would then have the recess 13.).

According to Fig. 3b) to e), in this embodiment, the ventilation duct 8 is also formed in one or more ventilation cassettes 14, each of which is inserted into a recess 13, in particular in a milled recess in the frame 1 (or the casement 2) For example, continuous or starting from the frame rebate space, a ventilation cassette 14 preferably being used in this milled recess.

In this area of the ventilation cassette 14, the recesses 13 are preferably formed in such a way that the insulating webs 101c in this area - possibly up to foot areas in the receiving grooves 101d of the metal shells - are completely removed. If necessary, parts of the receiving grooves 101 d are also milled away without damaging the hollow chamber plane from the hollow chamber or chambers 101 e. In this way, machining the cutouts 13 is easy. The ventilation cassette 14 takes over the thermal insulation instead of the insulating bars.

On the respective frame side on which a ventilation duct 8 is formed, this does not have to extend over the entire length of the respective frame section / frame spar, even according to FIGS. 3b) to e). For example, one, two or more ventilation cassettes can be provided on one side of the frame, each spaced apart from one another, so that the sections of Figs. 3b) and c) on the one hand and 3d) and e) on the other hand alternate. Several recesses 103c are then to be provided.

In this way, the processing of the frame profiles is not further complicated, despite the need to provide a ventilation cassette 14, because the one or more necessary recess (s) 13 ( 3b) to e) can also be openings) for inserting the Lüftungskas set 14 are formed. The ventilation cassette 14 is preferably clamped and / or latched there or fastened with fastening means such as one or more screws or adhesive.

In order to be able to use the ventilation cassette 14 in very narrow frame profiles, the frame - here the frame 1 - can be made higher in the area of the ventilation cassette 14. However, protruding (through the profile) cassettes can also extend into recesses in the surrounding masonry (not shown here).

In FIG. 9, for example, three of the ventilation cassettes 14 are formed in the upper spar or the upper window frame profile 101 of the window frame 1 or inserted into it. A corresponding number of cutouts 13, here three of the cutouts 13, can then be formed in this frame profile 101. The left and right ventilation cassette have already been installed. The middle of the Lüftungskas set 14 is shown in a position before assembly, close to the recess 13 of the frame 1, in which it is used.

The cassettes are preferably mounted on an upper side in the installation position of a vertically aligned window. The preferred assembly direction is the direction from the inside to the outside or here from the bottom to the top in the fold in the Recess into it. In this they could be locked, for example, with a locking edge behind egg ner corresponding locking edge of the recess 13 (not shown here).

However, it has also been shown that assembly from the outside, that is to say from the side opposite the fold side, is possible. This assembly of the ventilation cassette 14 can be done once during the initial assembly, if a replaceable insert 141 is seen before. Alternatively, however, the entire ventilation cassette can also be interchangeable. Other options for inserting the ventilation cassette are conceivable. It can also have a laterally accessible replaceable insert 141 or be mounted from the side as a whole, but this is less preferred for optical reasons.

The number and the position of the ventilation cassettes 14 are particularly advantageous in the manner shown in the figures, but otherwise also freely selectable or adaptable to the circumstances and requirements.

The individual cassettes preferably consist of the base element 14, the cover 16 and the insert 141, the latter two elements also being able to form an exchangeable unit.

Preferably, but not necessarily, the width b of the ventilation cassette 14 (FIG. 10) is between 30 and 70 mm. This is advantageous because it can be so easily integrated into customary insulating bars of a corresponding width. In particular on a plastic window, they can also be wider. Their length can be chosen as desired. It is advantageous to make them between 150 mm and 250 mm long (length I) so that their assembly and, in particular, replacement of the insert 141 remain easy to carry out. A length I = 200 mm is particularly preferred.

The depth or height h of the ventilation cassette 14 (see FIG. 10) can be selected as desired. It is preferably between 50 and 150 mm, in particular 60 and 120 mm. A height h of 90 mm is particularly preferred.

The ventilation cassettes 14 can be mounted flush in the profile fold. Known fastening means and fastening methods are suitable for this, such as screwing, jamming, clipping or the like, for example. T-nuts can also be used. The box can preferably have one more Fastening device for the cover be arranged. In FIG. 8, this is a quarter-circle lever. Clip levers are also possible.

The cover 16 here has the groove 17 or a corresponding groove contour for receiving a central seal. Further grooves or contours that simulate the folded surface of the profiles are possible.

The box 141 can preferably consist of a plastic, in particular manufactured in an injection molding process. Other known manufacturing processes are also possible, e.g. gluing or welding several wall parts. Other materials are also possible, e.g. aluminum. Plastic is preferred because of its poor heat conduction.

As discussed, the cover 16 preferably has two or more openings 16a, b. They are preferably about 20 mm long, 10 mm wide and are preferably divided by 20 mm wide webs 16c, d. In this way, for example, a comb-like configuration is obtained on both sides of a central longitudinal web, which here has the groove 17.

The cover 16 preferably simulates the rebate contour, in particular with the receiving groove 17 for the center seal 18, which here also forms a “sliding seal” that seals the gap between the window frame and the sash frame when the sash is partially open. Alternatively, the seal can already be an integral part of the cover.

The groove or the seal is located between the inlet and outlet opening or openings 16a, b of the channel 8. One opening can advantageously be provided, but there is a large number of openings and separate ventilation ducts per cassette for sound insulation and a large amount of air (for sound insulation and large amounts of air - depending on requirements) also possible. On the other hand, the openings must not be too small, otherwise sufficient air volumes / air throughput will not be achieved. One opening each for inlet and outlet has been found to be the optimum. A single U-shaped ventilation duct has proven to be particularly advantageous.

The channels 8a, b, c, ... are preferably separated from one another. By changing the channel cross-section, different frequency ranges can be more or less well insulated. So others can reduce street noise "Lids with sound-absorbing material can be used to dampen" wind turbine noise "or" playground noise ". The system of the cassette can therefore be easily adapted to customer requirements. The system can also be easily changed later.

The cover 16 is preferably mounted or removed from the box with a screw, clip or lever mechanism for easy operation. This simplifies and facilitates maintenance work.

For practical handling, cover 16 and insert 14 can jointly form a structural unit. They can then be exchanged together during maintenance, for example when a change interval has elapsed after which it is recommended to change the filter material 141 or then the entire insert 141.

The insert 141 can be glued, welded or otherwise mechanically connected to the cover 16.

Known foam materials can be used as sound insulation material 142. The already mentioned heavy foils 143 can also be used as an alternative or in addition. Materials like EVA and bitumen can also be used.

Key data for performance are sound insulation values (dB), air pressure (PA) and air throughput (m ³ / h). Since the data are directly related, improving one size worsens another. However, overall performance data can be improved through design measures and the selection of optimal materials. With cassettes according to the invention - as shown for example in FIGS. 9 to 14 - the following values can be achieved, for example: Air throughput of 12.7 m ³ / h with 2 PA and 28.7 m ³ / h with 10 PA pressure difference between inside and outside and sound insulation with the window tilted = 32 dB (closed = 47 dB)

14 shows, by way of example, various inserts 141 which are inserted in otherwise identically constructed ventilation cassettes with base element 15 and cover 16. The cover 16 can be adapted to the insert 141 with regard to the position of the openings 16a, b. Each U-shaped ventilation ducts and inserts with filter material 142 and optional heavy foil 143 are shown.

The ventilation channels 8 of FIGS. 14 e) to h) have a smaller depth than those of FIGS. 14 a) to d). The ventilation ducts 8 can be formed from the interaction between the walls of the insert 141 and the base element 15 and the cover 16.

Reference number

Frame 1

Casement 2

Area element 3

Contact bridge 4

Stop seal 5

Contact bridge 6

Stop seal 7

Ventilation duct 8, 8a, 8b, first ventilation duct opening 9, second ventilation duct opening 10, reinforcement reinforcement 11, 12

Recess 13

Ventilation cassette 14

Basic element 15

Cover 16

Openings 16a, 16b

Webs 16c, 16d

Slot 17

Center seal 18

Wall 19

Passage 19a

Seal base 20

Sealing foot 21

Sealing section 22

Plant sliding section 23

System slide bar 24

Sealing lip 25

Sliding surface 26

Attachment area 27

Frame profile 101 first metal shell 101a second metal shell 101b

Isolation bar 101c

Grooves 101 d Hollow chambers 101e

Sash profile 102 first metal shell 102a second metal shell 102b

Isolation bar 102c

Slot 1 ß2d

Insulating glass pane 103

Center seal 104

Sliding seal 105

System sliding strip 124

Areas 124 ‘, 124"

Attachment end 124a

Sliding surface 126, 126 '

Grooves 127

Hollow chamber 128

Corner pieces 130

Legs 131, 132

Noses 133

Cable receiving groove 134

Cable 135

Stake 141

Filter material 141

Heavy foil 142

Flange 151

Ridges 161

Gap X

Hollow chambers H1, H2, ....

Rebate space F

Rebate section Fl, Fll

Gap S l, S i l

Opening width W

Claims

Expectations

1) Window which has at least the following features: a) a frame (1) composed of several frame profiles (1 '), b) a sash frame (2) composed of several frame profiles (2'), which preferably has at least one surface element ( 3) and the at least between a closed position and a ventilation position is movable relative to the frame (1), c) with a circumferential frame fold space (F) between the frame profiles (1 ', 2') of the frame (1) and the frame profiles (1 ', 2') of the sash frame (2) is formed, d) at least one in at least one of the frame profiles (1 ') of the window frame (1) or in at least one of the frame profiles (2') of the sash frame (2) formed ventilation duct (8), which has a first ventilation duct opening (9) and a second ventilation duct opening (10), e) wherein the casement (2) and the frame (1) are designed to hold at least one of the ventilation duct openings in the closed position (9, 10) to be closed, and in the ventilation position both ventilation duct openings (9, 10) of the at least one ventilation duct (8) to be released, characterized in that f) the one or more ventilation ducts (8) each in at least one ventilation cassette (14 ) or several ventilation cassettes are formed, which is / are inserted into the window frame or the casement or in the respective window frame profile (1 ') or the respective casement profile (2').

2) Window according to one of the preceding claims, characterized in that the ventilation cassette has an insert (141) which is inserted into an in particular trough-like base element (15) of the ventilation cassette.

3) Window according to one of the preceding claims, characterized in that the ventilation cassette has a cover (16) for covering the basic element (15). 4) Window according to one of the preceding claims, characterized in that the insert (141) of the ventilation cassette (14) built into the window is exchangeable.

5) Window which has at least the following features: a) a frame (1) composed of several frame profiles (1 '), b) a sash frame (2) composed of several frame profiles (2'), which preferably has at least one surface element ( 3) and the at least between a closed position and a ventilation position is movable relative to the frame (1), c) with a circumferential frame fold space (F) between the frame profiles (1 ', 2') of the frame (1) and the frame profiles (1 ', 2') of the sash frame (2) is formed, d) at least one in at least one of the frame profiles (1 ') of the window frame (1) or in at least one of the frame profiles (2') of the sash frame (2) formed ventilation duct (8), which has a first ventilation duct opening (9) and a second ventilation duct opening (10), e) wherein the casement (2) and the frame (1) are designed to hold at least one of the ventilation duct openings in the closed position (9, 10) to be closed, and in the ventilation position both ventilation duct openings (9, 10) of the at least one ventilation duct (8) to be released, characterized in that f) the one or more ventilation ducts (8) each in at least one ventilation cassette (14 ) or a plurality of ventilation cassettes is / are which is / are inserted into the window frame or the casement or in the respective window frame profile (1 ') or the respective casement profile (2'), the ventilation cassette having an insert (141) which is inserted into an especially trough-like basic element (15) of the ventilation cassette, the insert (141) of the ventilation cassette (14) built into the window being exchangeable without having to remove the basic element (15). 6) Window according to one of the preceding claims, characterized in that the ventilation cassette has a cover (16) for covering the basic element (15) and possibly the insert (141).

7) Window according to one of the preceding claims, characterized in that the respective ventilation cassette (14) is not visible to the outside in the closed position in a recess (13) facing the frame rebate of the respective frame profile or the respective sash profile.

8) Window according to one of the preceding claims, characterized in that the cover is releasably attached to the base element (15) with a releasable fastening means.

9) Window according to one of the preceding claims, characterized in that a sealing groove (17) is formed on the cover.

10) Window according to one of the preceding claims, characterized in that the insert (141) and the cover (16) form a structurally changeable unit.

11) Window according to one of the preceding claims, characterized in that the insert (141) consists of one or more materials.

12) Window according to one of the preceding claims, characterized in that the insert (141) has a filter material (141).

13) Window according to one of the preceding claims, characterized in that the insert (141) has a film, in particular a heavy film.

14) Window according to one of the preceding claims, characterized in that the insert (141) in the state inserted into the base element (15) causes one or more deflections of an air flow and / or a subdivision of the air flow into several partial air flows.

15) Window according to one of the preceding claims, characterized in that the at least one ventilation duct (8) runs L-shaped or U-shaped.

16) Window according to one of the preceding claims, characterized in that the ventilation cassette (14) is inserted into a recess facing the frame rebate (13) of the respective frame profile (T) or the respective sash profile (2 ‘).

17) Window according to one of the preceding claims, characterized in that several of the ventilation cassettes (14) are used in the recesses (13) of the respective frame profile (1 ') or of the respective sash profile (2 ‘) in the recesses facing the frame rebate.

18) Window according to one of the preceding claims, characterized in that the respective ventilation cassette (14) is used in a ge to the frame rebate recess (13) of the respective frame profile (1 ') or the respective sash profile (2'), which is used as Milling is trained.

19) Window according to one of the preceding claims, characterized in that the frame profile (101) and / or the sash profile has / have a first metal shell (101a) and a second metal shell (101b) and an insulating bar arranged in between, wherein the in the metal shells also each have at least one hollow chamber plane.

20) Window according to claim 19, characterized in that in the area of the ventilation cassette (14) the recesses (13) are designed so that the insulating webs (101c) in this area - possibly except for foot areas in the receiving grooves (101 d) the metal shells (101 a, 101 b) - are completely removed and that parts of receiving grooves (101 d) for the ends of the Isolation bars are milled away with, without the milling extending into the respective flea chamber level of the metal shells.

21) Window according to one of the preceding claims, characterized in that the ventilation cassette (s) (14) are provided in the upper side of the window frame when installed.

22) Window according to one of the preceding claims, characterized in that the ventilation cassette (s) (14) are provided in recesses (13) of the window frame profile (101) of the upper side of the window frame when installed.

23) Window according to one of the preceding claims, characterized in that the ventilation cassette (s) (14) are higher than the frame profile (101) and that an additional profile (110) is placed on the frame profile, in which the ventilation cassette (s) ( 14) protrude.

24) Window according to one of the preceding claims, characterized in that the ventilation cassette (s) (14) is / are provided in recesses (13) of one or more insulating webs (101c).

25) Window according to one of the preceding claims, characterized in that the base element (15) has a completely or partially circumferential flange (161).

26) Window according to one of the preceding claims, characterized in that the cover rests with one or more webs (161) on the base element (15).

27) Window according to one of the preceding claims, characterized in that the cover and the profile in that it is inserted have a corresponding contouring. 28) Window according to one of the preceding claims, characterized in that the ventilation duct is divided into several sub-ducts within the ventilation cassette 141.

29) Window according to one of the preceding claims, characterized in that the air flowing through must change direction within the ventilation duct, preferably once or several times.

30) Window according to one of the preceding claims, characterized in that the respective ventilation cassette on the cover (16) each has the ventilation duct openings and that these are aligned with the frame rebate space (F).

31) Window according to one of the preceding claims, characterized in that at least one sealing plane is formed between the frame (2) and the sash frame (1) in the area of the frame rebate space in the open state.

32) Window according to one of the preceding claims, characterized in that the at least one center seal rests against the contact slide strip (24, 124) both in the ventilation state and in the closed state.

33) Window according to one of the preceding claims, characterized in that two center seals are provided, with at least one of these center seals in the ventilation state as well as in the closed state on the contact sliding strip (24, 124) and the other only Lich in the closed state on the system sliding strip (24, 124).

34) Window according to one of the preceding claims, characterized in that the one or at least one of the center seals is designed as a lip seal with one or more sealing lips, which are each designed to be flexible. 35) Window according to one of the preceding claims, characterized in that it has one or more of the features directed to the ventilation cassette in the preceding claims. 36) Ventilation cassette for a window according to one of the preceding claims, in which one or more ventilation ducts (8) are provided, the ventilation cassette having an insert (141) which is inserted into a base element (15) of the ventilation cassette, the insert ( 141) of the ventilation cassette (14) built into the window can be changed without having to remove the basic element (15).

37) Ventilation cassette according to one of the preceding claims, characterized in that it has one or more of the further features in the preceding claims directed to the ventilation cassette.

38) Method for forming a ventilation duct (8) in a window according to one or more of the preceding claims, characterized in that a frame profile is provided that then a recess facing the frame rebate is formed in the respective frame profile, in which a Ventilation duct is to be formed and that a

Ventilation cassette is inserted into this recess of the respective frame profile (1 ‘) or the respective sash frame profile (2‘) facing the frame rebate space, which recess has an exchangeable insert (141).