EP3800316A1 - Window with a ventilation duct - Google Patents

Abstract

A window which has at least the following features: - a frame (1), - a sash frame (2) which is movable relative to the frame (1) at least between a closed position and a ventilation position, - with a circumferential frame rebate space (F) between the frame profiles (1 ', 2') of the window frame (1) and the frame profiles (1 ', 2') of the sash (2) is formed, - at least one ventilation duct (8), which has a first ventilation duct opening (9) and a second Has ventilation duct opening (10), - wherein the casement (2) and the frame (1) are designed to close at least one of the ventilation duct openings (9, 10) in the closed position, and both ventilation duct openings (9, 10) in the ventilation position to release at least one ventilation duct (8), - wherein between the frame (2) and the sash frame (1) in the area of the frame rebate space in the open state at least one sealing plane is formed, which is of at least one Dic (18, 104, 105), which at least in the ventilation position rests with a contact sliding section (23) on the frame or on the casement, is characterized in that the contact sliding section (23) in the ventilation position on a contact sliding strip ( 24, 124) of the casement or the window frame, which is formed on the casement or the window frame, in particular is attached and protrudes into the rebate space.

Description

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 US Pat DE 10 2016 115 422 . However, the generic construction has a relatively complicated structure.

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 aim by the subject matter of claim 1.

1. a) einen aus mehreren Rahmenprofilen zusammengesetzten Blendrahmen,
2. b) einen aus mehreren Rahmenprofilen zusammengesetzten Flügelrahmen, der vorzugsweise wenigstens ein Flächenelement aufweist und der mindestens zwischen einer Schließstellung und einer Lüftungsstellung relativ zu dem Blendrahmen beweglich ist,
3. c) wobei ein umlaufender Rahmenfalzraum zwischen den Rahmenprofilen des Blendrahmens und den Rahmenprofilen des Flügelrahmens ausgebildet ist,
4. d) wenigstens einen in wenigstens einem der Rahmenprofile des Blendrahmens oder in wenigstens einem der Rahmenprofile des Flügelrahmens ausgebildeten Lüftungskanal, der eine erste Lüftungskanalöffnung und eine zweite Lüftungskanalöffnung aufweist,
5. e) wobei der Flügelrahmen und der Blendrahmen - zusammenwirkend - dazu ausgebildet sind, in der Schließstellung wenigstens eine der Lüftungskanalöffnungen zu verschließen, und in der Lüftungsstellung beide Lüftungskanalöffnungen des wenigstens einen Lüftungskanals freizugeben,
6. f) wobei zwischen dem Blendrahmen und dem Flügelrahmen im Bereich des Rahmenfalzraumes im Öffnungszustand wenigstens eine Dichtebene ausgebildet ist, welche von wenigstens einer Dichtung gebildet wird, welche zumindest in der Lüftungsstellung mit einem Anlagegleitabschnitt an dem Blendrahmen oder an dem Flügelrahmen anliegt,
7. g) wobei der Anlagegleitabschnitt in Lüftungsstellung an einer Anlage-Gleitleiste des Flügelrahmens oder des Blendrahmens anliegt, die an dem Flügelrahmen oder dem Blendrahmen ausgebildet, insbesondere befestigt ist und mit einem freien Ende in den Falzraum vorsteht.

Such a window is created that has at least the following features:

1. a) a frame composed of several frame profiles,
2. b) a sash frame composed of several frame profiles, which preferably has at least one surface element and which is movable relative to the frame at least between a closed position and a ventilation position,
3. c) wherein a circumferential frame rebate space is formed between the frame profiles of the window frame and the frame profiles of the sash frame,
4. d) at least one ventilation channel formed in at least one of the frame profiles of the window frame or in at least one of the frame profiles of the casement, which has a first ventilation channel opening and a second ventilation channel opening,
5. e) wherein the casement and the frame - cooperating - are designed to have at least one of the ventilation duct openings in the closed position to close, and to release both ventilation duct openings of the at least one ventilation duct in the ventilation position,
6. f) with at least one sealing plane formed between the frame and the sash in the area of the frame rebate space in the open state, which is formed by at least one seal which, at least in the ventilation position, rests with a contact sliding section on the frame or on the sash,
7. g) wherein the contact sliding section rests in the ventilation position on a contact sliding strip of the sash or the window frame, which is formed on the wing frame or the window frame, in particular is attached and protrudes with a free end into the rebate space.

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 window frame can be designed to be circumferential or not to be designed to be circumferential 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 thus also form part of a facade structure.

It is particularly advantageous that the contact sliding strip provides a component that is adapted to the one or more seals that are in contact with them. 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 slide strip is intended exclusively for the contact of 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 contact sliding strip influences the closing and opening forces when the sash is closed and opened, since a corresponding sliding seal is preferably in contact with it and, if necessary, can slide 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 bars or profiles that primarily serve other purposes.

It can advantageously be provided that the contact slide strip has an elongated, web-like, in particular elongated arc-like shape with two ends, one of the ends being fixed to the casement or the frame and the other free end protruding into the rebate space. In this way, an additional strip is created for the frame profiles actually present on the sash frame (or the blind frame), which can preferably be designed exclusively and thus optimally for the task as a particularly well-suited system for the one or more seals of the corresponding frame - blind frame or Sash frame - to serve to close the ventilation duct at least in the opening and ventilation position of the sash frame relative to the frame. However, this is only an advantageous option that is particularly suitable for use on aluminum-plastic frame profiles. The contact slide bar can also have a different shape.

According to one embodiment, it can be provided that the contact slide strip extends in sections at a distance, in particular at a substantially parallel spacing, 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 extends two metal shells of the Sash frame connects together and forms a portion of the rebate space.

The advantageous contact slide strip can be used to ensure in a simple manner that the contact slide strip does not have to rest on the insulating web, which is usually made of plastic, which causes the window to open due to the relatively high frictional forces between the insulating web and the one or that would disadvantageously complicate the multiple investment webs. It can also be provided that the contact slide strip extends in sections at a distance from an insulating web of the sash, which connects two metal shells of the sash to one another and forms a section of the rebate space.

If the contact slide strip is in any case configured in a curved manner in sections, it can advantageously be provided that the contour of the arcuate contact slide strip corresponds to the contour or path that the wing moves out of the Closed position and vice versa in the area of the system sliding strip. A curved path is swept over in particular at the top of the sash (on the upper sash profile) when the sash can also be pivoted into a tilt position, for which purpose it can preferably have a horizontal tilt axis in its lower area. In this way, the forces required when opening and closing the sash are designed to be relatively constant in such a way that they hardly change while the opening or closing path is being swept over.

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 designed as a central seal. This central seal can in turn be advantageously designed to subdivide 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 seal base pivotably attached sealing section, which is hingedly connected 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 rests on the contact sliding strip. Two or more such center seals can also be provided.

It can then be provided that, in the closed state, at least two or at least three sealing planes are formed circumferentially between the frame and the casement in the area of the frame rebate space. 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. If the sash is opened, the window is moved into its ventilation position so that air can be exchanged through these open sealing levels and the ventilation duct between the rooms, which the window in the installed state, i.e. usually between inside and outside, can be exchanged.

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

It can advantageously be provided that the contact guide strip is attached to the side on and / or in a corner area of the respective corresponding sash profile. It can also be advantageously provided that the center seal is designed as a lip seal with one or more sealing lips, each of which is designed to be flexible.

According to a further option of the invention, it can be provided that the shape, surface and / or material of the contact slide strip and the contact slide section are coordinated with one another and correspond to one another.

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 expediently be provided that the contact slide strip is mounted laterally on and / or in a corner area of the respective corresponding sash profile. It can thus be provided that the contact slide strip is fixed with one of its ends to 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 casement, the means to be provided for fixing the contact sealing strip, such as a groove or the like, can be designed 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 that controls the opening movement or not or hardly hinder the closing movement of the sash.

It is particularly advantageous that the shape, surface and / or material of the contact slide strip and the contact slide section can or are coordinated with one another and correspond to one another. In this way, the materials can be coordinated with one another in such a way that the seal with its contact sliding section can slide easily along the contact sliding strip. This is achieved, for example, when the contact slide strip is made entirely or in sections of metal, in particular an aluminum alloy, and the contact slide section is made of an elastomer. The contact sliding strip can also consist of an aluminum alloy in sections and a plastic in sections.

In one variant, the sliding seal can preferably also have a roughened surface structure on the sliding side. The contact sliding strip can correspondingly have a sliding coating. The surface structure can also be designed the other way around. It can therefore be provided that the contact sliding section has a roughened surface structure on the sliding side and / or that the contact sliding bar has a sliding coating or that the contact sliding bar has a roughened surface structure on the sliding side and / or that the contact sliding section has a sliding coating.

According to a further advantageous option it can be provided that one of the ends of the contact slide strip extends up to an edge or just up to an edge (ie up to less than 10 mm in front of the edge) of the frame profile of the sash on which it is fixed is.

The attachment of the sliding strip to the frame profile (the sash or window frame) can be done in a variety of ways, for example by screwing, riveting, clipping, or gluing.

According to a further option, it can advantageously be provided that contact sliding strips of the sash frame that adjoin one another at corners are connected to one another via corner connector-contact sliding pieces. In this way, a circumferential "sliding frame" can be formed on the casement (or window frame), which also ensures good sealing of the ventilation duct in these corner areas

In the context of this invention, the frame profiles can also have multiple shells. You can, for example, have two metal shells and an insulating strip in between, but also a metal shell and a plastic shell. They can, however, also have a five-shell structure or also as plastic profiles that are not multi-shell or single-shell, and these can optionally have reinforcements or the like.

According to one variant, it can advantageously be provided that all of the multi-chamber profiles of the window frame and / or of the casement frame consist entirely or essentially entirely of plastic.

According to a further option it can be provided that one or more of the multi-chamber hollow profiles made of plastic of the window frame and / or the casement 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, e.g. square pipes, are simply pushed into the PVC profiles and screwed as reinforcement inserts.

It can also be provided that a reinforcement reinforcement, e.g. made of metal, is made in coextrusion with the multi-chamber hollow profile made of plastic.

As the stop seals and / or the center seal, seals are preferably used in each case, which are inserted and held in retaining grooves. 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. The seals can preferably also be welded to one another.

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 stop seals (inside / outside) and the center seal are preferably designed circumferentially, i.e. on four sides of the frame, while the sliding seal / sliding sealing lip (separate or integral with the center seal) only on one (opposite the tilt axis) side or preferably on three sides (except on the tilt axis) is arranged.

The center seal can preferably be designed as a lip seal with one or more sealing lips, each of which is relatively thin and flexible. A large-volume, multi-chamber central seal is advantageously not necessary in this way.

The seals are advantageously made from a weldable TPE or weldable EPDM. In this way, profiles with inserted seals can be welded to form a frame at the same time. The sliding seal is multi-articulated and has a curved sliding surface which, together with the contact sliding strip attached to the frame, forms a particularly favorable friction pairing. Here, the surface structures and the material combination are important to achieve an optimal result.

In the prior art mentioned at the beginning, the relatively small opening width (hardly noticeable when actuated) results from 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 preferably achieved. 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 sealing base in an articulated manner.

According to a variant that is structurally easy to implement and also in combination with further independent advantageous invention, it can be provided that the one or more ventilation ducts is / are each formed in a ventilation cassette that is / are inserted into the frame or casement. 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 enough to provide or form a recess there and then to insert the preassembled ventilation cassette into the recess, for example to snap it into place or to clamp it.

In this case, the respective ventilation cassette can be inserted in a simple manner and preferably not visible to the outside in the closed position into a recess of the respective frame profile or of the respective sash profile facing the frame rebate space.

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. Provision can particularly advantageously be made for the ventilation duct openings to lie completely in the frame rebate space between the stop seals in the closed state. 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 approximately 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 a groove in 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).

Synthetic microfibers that are able to filter pollen are preferably arranged in the ventilation cassettes. 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 connected in various ways be fixed to the frame, so clamped or preferably with a 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.

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

Fig. 1

in a) und b) je einen Schnitt durch einen beispielsweise im Einbauzustand oberen horizontal verlaufenden Abschnitt eines ersten erfindungsgemäßen Fensters, wobei das Fenster in a) in einer Geschlossen- bzw. Schließstellung und in b) in einer Lüftungsstellung dargestellt ist;

Fig. 2

in a) und b) je einen Schnitt durch einen beispielsweise im Einbauzustand oberen horizontal verlaufenden Abschnitt eines zweiten erfindungsgemäßen Fensters, wobei das Fenster in a) in einer Geschlossenstellung und in b) in einer Lüftungsstellung dargestellt ist;

Fig. 3

in a) einen Schnitt durch einen beispielsweise im Einbauzustand oberen horizontal verlaufenden Abschnitt eines dritten erfindungsgemäßen Fensters, wobei das Fenster in einer Geschlossenstellung dargestellt ist, in b) und c) einen ersten Schnitt durch einen beispielsweise im Einbauzustand oberen horizontal verlaufenden Abschnitt eines vierten erfindungsgemäßen Fensters ähnlich zu dem Fenster aus a), wobei das Fenster in b) in einer Geschlossenstellung dargestellt ist und in c) in einer Lüftungsstellung außerhalb des Bereichs einer Lüftungskassette, und in d) und e) einen zweiten Schnitt durch einen beispielsweise im Einbauzustand oberen horizontal verlaufenden anderen Abschnitt des vierten erfindungsgemäßen Fensters aus b) und c) im Bereich einer Lüftungskassette, wobei das Fenster in d) in einer Geschlossenstellung dargestellt ist und in e) in einer Lüftungsstellung;

Fig: 4

in a), b) und c) jeweils Seitenansichten verschiedener Leisten für Fenster insbesondere nach Art der Fig, 3;

Fig: 5

in a) und b) jeweils Seitenansichten weiterer, verschiedener Leisten für Fenster insbesondere nach Art der Fig, 3;

Fig: 6

in a) und b) eine Seitenansicht und eine perspektivische Ansicht einer nochmals weiteren, anderen Leiste für Fenster insbesondere nach Art der Fig, 3; und

Fig. 7

in a), b) und c) eine Seitenansicht und eine perspektivische Ansicht eines Anschnitts eines Eckbereiches eines Rahmens und in d) eine Seitenansicht eines Eckverbinder-Anlage-Gleitstücks.

The invention is described in more detail below on the basis of exemplary embodiments with reference to the drawing. The invention is not restricted to these exemplary embodiments but can also be implemented in a different literal sense or in a different way. Show it:

Fig. 1

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

Fig. 2

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

Fig. 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 of a fourth window according to the invention, for example, in the installed state similar to the window from a), the window in b) being shown 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 a horizontally extending, for example, in the installed state other section of the fourth window according to the invention from b) and c) in the area of a ventilation cassette, the window being shown in d) in a closed position and in e) in a ventilation position;

Fig: 4

in a), b) and c) side views of different strips for windows, in particular according to the type of Fig. 3 ;

Fig: 5

in a) and b) each side views of further, different strips for windows, in particular according to the type of Fig. 3 ;

Fig: 6

in a) and b) a side view and a perspective view of yet another, different bar for windows, in particular of the type Fig. 3 ; and

Fig. 7

in a), b) and c) a side view and a perspective view of a section of a corner region of a frame, and in d) a side view of a corner connector system slide.

Various exemplary embodiments are described in the following description of the figures. 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 1 'to form a frame shape, in particular a rectangular shape.

On the frame 1 a relative to the frame 1 movable sash 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 sash frame 2 is composed of several sash frame profiles 2 'to form a frame shape, in particular a rectangular shape.

The frame profiles 1 'and / or the sash profile 2' can be designed as multi-chamber hollow profiles.

The frame profiles can be designed as plastic profiles. But they can also be designed as so-called composite profiles ( Fig. 3a - e) ). Then they usually consist of one or more metal profiles - also referred to synonymously here as metal shells - and one or more insulating bars. One is preferred Construction in which two metal profile levels are connected to one another via an insulating strip, which is usually made of plastic. However, other, further designs are also conceivable, in particular designs with a metal profile plane and an insulating profile plane made of plastic and designs with three metal profile planes and two insulating profile planes.

In the respective exemplary embodiments, a preferably circumferential frame rebate space F is formed between the frame 1 and the sash frame 2 or their frame profiles 1 ', 2'. 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 the Fig. 1 or 3 serves to be able to close and open a room opening of a building (not shown here), whereby a room I (for example an area surrounding a building) is separated from a room II (for example an interior of the building).

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 Figure 1b Running sides of the window frame also form corresponding gaps in the ventilation position, but these gaps do not have a constant width when they are pivoted open. Nevertheless, in addition to improving the ventilation effect, especially on these sides, ventilation ducts 8 of the type can also be used Fig. 1a and 1b also be trained.

The sash frame 2 can - preferably to one side or to an adjoining 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. Analog can - preferably to the other side or towards the other adjoining room I - the blind frame 1 have a contact web 6 in which it rests in the closed position on the blind frame 1 directly or via a stop seal 7 attached to the contact web 6. In this way, a gap SII and a gap SI 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.

To Fig. 1 it is further provided that at least the hollow profile or profiles of the window frame 1 or the sash frame 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 embodiment of Fig. 1 seven hollow chambers H1 to H7 are provided between space I and space II ("from inside to outside"). Further hollow chambers can also be formed perpendicular to the direction I-II, 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 the thermal insulation, either 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 a metal, in particular steel and a metal profile, for example a metal strip or metal plate or the like. However, it can also be designed as reinforcement reinforcement made from 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 recess that is formed in the frame 1 or the casement 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 thus be formed simply in only one or in several of the profiles of the surrounding window frame 1 or of the sash frame 2.

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.

The cover 16 is preferably directed towards the frame rebate area F.

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 center seal 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 seal foot 21 inserted into the groove. The seal 18 can furthermore have a sealing section 22 which is fastened pivotably on 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 ( Figures 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 section 22 can have a contact sliding section 23 as an end section, which rests on the corresponding frame profile, here the sash profile, during relative movements between the frame 1 and the sash frame 2 and can slide easily. This results in a harmonious, easy 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 casement 2 or on several sides, preferably on three sides. If it is a tilt window, preferably no ventilation duct is formed on the side on which the tilt 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 or comes into contact with the sash frame 2 in a ventilation position to be explained below so that it divides the frame rebate space F in the ventilation position into two areas, between which an exchange of air essentially only takes place via the ventilation duct 8.

The center seal 18 thus divides the frame rebate space F into a first and a second area FI, FII (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, the central seal is fastened to the sash frame 2 and extends as far as the frame 1. In this case, too, the sealing section 22 should preferably be long enough that, when the sash is opened, it initially remains in contact with the window frame 1 over a certain opening angle, or is or comes into contact with the window frame 1 in a ventilation position to be explained below, so that it divides the frame rebate space F in the ventilation position into two areas, between which an exchange of air essentially only takes place 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 center seal 18 can then be arranged from the sash frame 2 to the frame 1 or vice versa.

In the ventilation position L the Figure 1b the sash was moved into an open position relative to the frame 1, in particular pivoted and / or shifted. This open position is a ventilation position. It can - but this is not mandatory - correspond to the maximum attainable position when tilting or rotating or the like.

The column SI and SII are open in this position, since the stop seals 5 and 7 are no longer in contact with the frame 1 or sash frame 2. The center seal 18 is still in contact with the sash frame 2. The sash is still partially within the scope defined by the frame 2. Since the center seal 18 blocks the direct transition between the rooms FI and FII, an exchange of air between these rooms FI and FII and thus also an exchange of air between the rooms I and II can only take place through the ventilation duct. This provides a very advantageous combination of 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 SI, frame rebate space section FI, ventilation duct 8, frame rebate space section FII and gap SII. 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 can 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, extends there through the passage 19a of the wall 19 and again runs approximately parallel to the surface element up to the ventilation duct opening 10 changes several times the direction of air flowing through. 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 in the embodiment of FIG Fig. 3 be provided (see e.g. Figure 3b ) to e), will be explained in more detail below). You can then analog to Fig. 1 can be inserted into a chamber, in particular a cutout in the window frame, and / or it can completely replace one or more otherwise provided insulating webs in its area. The ventilation duct can, however, also be designed directly as a channel-like cutout in the frame or it can be delimited by channel-like elements which are inserted into these cutouts.

It can also be provided that a contact sliding strip 24 is arranged on the casement frame 2 or on its casement frame profiles 2 ', on which a ventilation duct 8 is also provided. 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 to the side and / or in a corner area of the respective sash profile 2 '. This corner area is preferably that corner area which is closest to the corresponding frame profile 1 'in the opening and ventilation position. For example, the contact slide strip can lie laterally outside an area which is defined by the inner and outer edge planes of the insulating glass pane. This is for example at Fig. 1 the case. In Fig. 3 If this is also the case, 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 abutment 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 sash profile 2 '.

The frame profiles, in particular the outer walls to the rooms I and II are according to the embodiment of Fig. 1 formed 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 frame profiles 1 ', 2' are those with embedded reinforcement profiles which are manufactured by a coextrusion process, the reinforcement reinforcements being 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 designed circumferentially, that is, run on four sides of the frame, while the sealing section is not provided on all sides of the frame.

The seals - here you seals 5, 7, 18 - can advantageously be made from a weldable TPE or weldable EPDM. In this way, profiles with inserted seals can be welded to form a frame at the same time.

The center seal with the contact sliding section 23 is multi-articulated and has a curved sliding surface which, together with a contact sliding strip 24 attached to the sash frame (or frame 1), forms a particularly favorable friction pairing forms. Here, the surface structures and the material combination are important to achieve an optimal result.

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 in comparison with 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 chambers are particularly preferably separated from one another by an aluminum wall.

To Figures 2a and b is complementary to the construction of the Fig. 1a and b provided to form a further sealing lip 25 on the center seal 18 on the sealing base 20, which in the closed state rests on the sash frame 2, so that even sections of four sealing planes are advantageously formed in the frame rebate space between the frame and the sash frame.

It is particularly advantageous on the contact slide strip 24 that a component adapted to the one or more corresponding seal (s) on which it is applied is provided. The contact sliding strip 24 can be placed on the seals in terms of shape, surface and material, so that an optimal sliding and / or Unrolling is achieved. This reduces the operating forces at the window to a minimum. The seals "slide / roll" so long on the contact sliding strip 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 contact slide strip according to the invention maintains contact with the seal for a significantly longer period of time than was the case in the prior art, whereby 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 contact slide strip 24 is connected to a side of the frame profile facing the rebate to which it is to be attached. Known connection options such as screws, rivets, clips, gluing, etc. are available for this purpose. It is preferred to attach the contact slide strip to the rebate side of the sash profile 102 close to an edge, in particular to the edge that faces the interior or exterior in this way, a relatively large opening width in the ventilation position can be achieved in a simple manner.

Figure 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 exemplified in FIG Fig. 3a and 3b) to e), the outer edge of the sash profile, to which the contact sliding strip is to be attached, can thus be formed by an outer aluminum profile shell. It is advantageous that the system slide strips can be split into different ones as required 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 in Fig.3a ) to e) - have a first metal shell 101a and a second metal shell 101b in these variants.

These two metal shells 101a and 101b can be connected to one another via an insulating web 101c (or several insulating webs) ( Fig. 3a ) to e). These insulating webs 101c can engage at their ends in receiving grooves 101d of the two metal shells 101a, 101b and be fixed there (for example by rolling on a wall of the respective receiving grooves). The two metal shells 101a and 101b preferably each have at least one hollow chamber plane made up of one or more hollow chambers 101e.

The sash profile 102 can also each also have at least one first metal shell 102a and one 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 towards an outside I of a building and the second metal shells can be oriented towards an inside II of a building. An insulating glass pane 103 is inserted into the casement.

A center seal 104 and a sliding seal 105 are arranged in the fold F between the frame profiles. They can be attached to the frame. The sliding seal 105 functionally also forms a type of central seal and the central seal 103 a type of contact seal, the latter lifting off the sash when it is opened, which is not the case with the central and contact seal and also with the sliding seal 105.

Opposite the seals 104 and 105 are in the fold F after Fig. 3a ) and 3b ) to e) two different variants of a system sliding strip 124 according to the invention are provided. This contact sliding strip 124 is fastened to the sash profile 102 in the area of the outside I. To this extent, it has a fastening end 124 a (which can also be called fastening base 124a 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 be inserted into the groove 102d of the sash profile, in particular in the first metal shell 102a (preferably towards the outside I), intervention. 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 slightly 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 frame 102, but does not touch it.

The system sliding strip has the Figure 3b ) to e) at its end a cable 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 latching.

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 is protected from damage towards the fold by the contact slide strip 124. In this way, the contact slide strip also forms a cable retaining strip here, which significantly simplifies the laying of a cable on the sash frame. In the case of a reverse construction with a contact slide strip on the frame, the laying of a cable on the frame is simplified accordingly (not shown).

In the in Fig. 3a In the closed position shown, the two seals 104 and 105 - that is to say here the center seal 104 and the sliding seal 105 - are both in contact with the contact sliding strip 124.

In this respect, the contact slide strip 124 protrudes in the rebate over the insulating web of the sash, but advantageously does not rest on the insulating web in thermal terms, so that a gap X can preferably 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 opening and closing the sash. 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 center 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 sash 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 Figure 1b ).

To Figure 3b ) to e) in this embodiment, the ventilation duct 8 is again formed in one or more ventilation cassettes 14, which are each inserted into a recess 13, in particular into a cutout that is in the frame 1 (or the casement 2), for example, continuously or starting from Frame rebate space is formed, with 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 are completely removed in this area - possibly except for the foot areas in the receiving grooves 101d of the metal shells. If necessary, parts of the receiving grooves 101d are also milled away without damaging the hollow chamber plane from the hollow chamber or chambers 101e.

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, it does not have to extend over the entire length of the respective frame section / frame spar. For example, one, two or more ventilation cassettes can be provided on one side of the frame, each of which is provided at a distance from one another, so that the cuts of the Figure 3b ) and c) on the one hand and 3d) and e) on the other hand. Several recesses 103c are then to be provided.

The individual ventilation cassettes can be completely exchanged for new ones. However, it is also conceivable to open it by removing the cover 16 so that its interior - formed e.g. by sound and / or heat absorbing material such as foam strips or the like - can be exchanged with it or afterwards.

Figure 4a shows a first variant of a system sliding strip 124 in section. The sliding strip 24 is designed as an elongated web-like element. It extends perpendicular to the image plane like a profile strip. One of its ends - the attachment end 124a - is designed to be fixed to the sash. From there it protrudes into the fold between the sash frame 2 and the frame 1.

The upper side of the contact sliding strip 124 - that is to say here the side facing the frame 1 - serves as a contact and sliding surface for the seal 105 - which has therefore already been referred to synonymously as the sliding seal. For this purpose, the contact slide strip 124 can have an arc shape at least towards this side. This page the contact sliding strip 124, on which at least the central and contact seal and sliding seal 105 rests or slides during the opening or closing process of the sash, is also referred to as sliding surface 126. This sliding surface 126 can advantageously be adapted to the pivoting radius of the wing, so it can form a curved surface (large radius). It can also be coated.

The fastening area B1 of the contact slide strip 124 is located on the left-hand side facing the outside I. This area B1 can be designed in different ways. A configuration as a clip connection for connecting to a corresponding clip element on the sash profile is particularly advantageous. Is shown in Figure 4a but again a fastening area B1, which is designed for a screw connection. To connect, the contact slide strip 124 is placed on the sash profile 102 and screwed there.

The width of this fastening area B1 is preferably about 1/3 of the total width of the contact slide strip 124. That is, the area B2 standing freely above the insulating web 102b makes up about 2/3 of the total width. This area B2 should not be more than 3/4 of the total width so that a resilient effect is achieved, but the area B2 does not become too unstable.

Figure 4b shows an alternatively designed contact slide strip 124. This has a first slide surface 126 and a second, somewhat offset slide surface 126 '. The shoulder creates a particularly suitable contact surface for a center seal 104. In addition, this variant is characterized by a hollow chamber 129.

Figure 4c shows a further embodiment of the contact slide strip 124 according to the invention. Here, the slide surfaces are not designed in an arc shape but rather as flat surfaces or bevels.

The plant sliding strip 124 of the Figure 4c as well as 5a, 5b, 6a and 6b particularly preferably have one, two or more undercut groove (s) 127, which can be provided as connecting grooves for corner connector-contact-sliding pieces 130.

The corner connector system sliding pieces 130 are used to connect the system sliding strips 124 of the various frame spars of a casement across corners.

For this purpose, the corner connector-contact-sliding pieces 130 can have two legs 130a, 130b which are aligned at an angle to one another and which, in terms of their nature can correspond to adjacent contact slide strips 124 in each case. The contact sliding strips 124 of the respective frame profiles extend between the corner connector-contact sliding pieces 130 of respectively adjacent corners and are preferably flush with them.

It can be provided that the corner connector system sliding pieces 130 and the system sliding strips 124 are provided with corresponding latching means and / or positive locking means - for example designed as grooves 127 and lugs 131 - which support the corner connector system elements abutting one another in the axial direction Connect sliding pieces and system sliding strip 12 in the direction of the longitudinal extension of the frame spars. In this way, the corner connector system sliders 130 are held securely.

The corners can be made rounded by the use of corner connector-contact-slide pieces 130. This is advantageous for the installation of the sliding seals on the installation sliding strips. The advantage is that the compressive forces of the seals are balanced in this area, as described above.

This shows that the contact slide strips 124 can advantageously extend over the corner area. The sliding seal or sliding seal 105 must here perform strong changes in shape, but may only cause the lowest possible forces. Especially in combination with z. B. rounded corner pieces 130, the expansion and thus the operating forces of the sliding seal 105 in corners are considerably reduced and a largely optimal contact situation is established.

To Figures 5a and b the respective contact sliding strip 124 consists of two areas 124 'and 124 "or sections made of different material. One area 124' can consist of plastic and the other area 124" of a metal such as aluminum. This contact sliding strip 124, which consists of two material areas, can be manufactured in one piece, for example using the coextrusion process, or it can be composed of two pieces that preferably run parallel to one another. Reference number Frame 1 Casement 2 Surface element 3 Contact bridge 4th Stop seal 5 Contact bridge 6th Stop seal 7th Ventilation duct 8th first ventilation duct opening 9 second ventilation duct opening 10 Reinforcement reinforcement 11, 12 Recess 13th cassette 14th Basic element 15th cover 16 Groove 17th Center seal 18th wall 19th Passage 19a Seal base 20th Sealing base 21 Sealing section 22nd Investment sliding section 23 Facility sliding strip 24 Sealing lip 25th Sliding surface 26th Attachment area 27 Frame profile 101 first metal bowl 101a second metal bowl 101b Insulating bar 101c Grooves 101d Hollow chambers 101e Sash profile 102 first metal bowl 102a second metal bowl 102b Insulating bar 102c Insulating glass pane 103 Center seal 104 Sliding seal 105 Facility sliding strip 124 Areas 124 ', 124 " Attachment end 124a Sliding surface 126, 126 ' Grooves 127 Hollow chamber 128 Corner pieces 130 leg 131, 132 Noses 133 Cable receiving groove 134 electric wire 135 gap X Attachment area B1 free standing area B2 Hollow chambers H1, H2, .... Rebate F. Rebate section FI, FII gap SI, SII Opening width W.

Claims (23)

Window that has at least the following characteristics: 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 which is movable at least between a closed position and a ventilation position relative to the frame (1), c) wherein a circumferential frame rebate space (F) is formed between the frame profiles (1 ', 2') of the window frame (1) and the frame profiles (1 ', 2') of the sash frame (2), d) at least one ventilation duct (8) 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 casement (2), which has a first ventilation duct opening (9) and a second ventilation duct opening (10) has, e) wherein the casement (2) and the frame (1) are designed to close at least one of the ventilation duct openings (9, 10) in the closed position, and both ventilation duct openings (9, 10) of the at least one ventilation duct (8) in the ventilation position ) to release, f) with at least one sealing plane formed between the frame (2) and the sash frame (1) in the area of the frame rebate space in the open state, which is formed by at least one seal (18, 104, 105) which at least in the ventilation position with a contact sliding section (23) rests against the frame or the casement,
characterized in that g) the contact sliding section (23) rests in the ventilation position on a contact sliding strip (24, 124) of the casement or the window frame, which is formed, in particular fastened, on the casement or the window frame and protrudes into the rebate space. Window according to claim 1, characterized in that the contact slide strip (24, 124) has an elongated, web-like shape with two ends, wherein one of the ends is fixed to the casement or the frame and wherein the other free end protrudes into the rebate space. Window according to Claim 2, characterized in that the contact slide strip (24, 124) has an elongated, arc-like shape. Window according to claim 2 or 3, characterized in that the contact slide strip (24, 124) extends in sections at a distance from the sash frame and the sash frame in the rebate space. Window according to claim 2 or 3, characterized in that the contact slide strip (24, 124) extends in sections at a distance from an insulating web (102c) of the sash which connects two metal shells (102a, b) of the sash and a section of the rebate space (F) trains. Window according to one of the preceding claims, characterized in that the contour of the contact slide strip (24, 124) essentially corresponds to an arch shape which the sash sweeps over when moving from the closed position and vice versa in the area of the contact slide strip (24, 124) . Window according to one of the preceding claims, characterized in that the at least one seal for contact with the contact sliding strip (24, 124) is designed as a central seal (18, 104, 105), preferably such that the central seal (18, 104 , 105) forms a sliding seal which is designed to slide on the contact slide strip. Window according to one of the preceding claims, characterized in that the central seal (18) is designed to subdivide the frame rebate space (F) into at least two frame rebate space sections (FI, FII), so that air in the ventilation position between the two frame rebate space sections (FI, FII) can essentially only be exchanged through the ventilation duct (8), the central seal (18) having a sealing base (20) and at least one sealing section (22) which is pivotably attached to the sealing base and which is articulated to the sealing base (20) , wherein the sealing section (22) in any case in the area or areas in which a respective Ventilation channel (8) is formed, in the ventilation position at its free end with the contact sliding section (23) rests on the contact sliding strip (24, 124). Window according to one of the preceding claims, characterized in that the central seal (18, 104, 105) is attached to the frame (1) and is in particular in the ventilation position in contact with the sash frame (2). Window according to one of the preceding claims, characterized in that the contact slide strip (24, 124) is fixed laterally on and / or in a corner area of the respective corresponding sash profile (2 '). Window according to one of the preceding claims, characterized in that the contact slide strip (24, 124) is fixed with one of its ends to a metal shell of the sash profile (2 ') on the side of an insulating web of the sash profile. Window according to one of the preceding claims, characterized in that the at least one central seal rests against the contact slide strip (24, 124) both in the ventilation state and in the closed state. Window according to one of the preceding claims, characterized in that two central seals are provided, with at least one of these central seals in contact with the contact slide strip (24, 124) both in the ventilation state and in the closed state, and the other only in the closed state against the contact Sliding strip (24, 124) is applied. Window according to one of the preceding claims, characterized in that the shape, surface and / or material of the contact slide strip (24, 124) and the contact slide section (23) are coordinated with one another and correspond to one another. Window according to one of the preceding claims, characterized in that the contact slide strip (24, 124) extends with one of its ends up to an edge of the frame profile of the casement. Window according to one of the preceding claims, characterized in that the contact slide strip (24, 124) extends up to an edge or just before an edge of the frame profile on which it is fixed. Window according to one of the preceding claims, characterized in that the contact slide strip (24, 124) and the one or more seals which bear against it have surface textures that are adapted to one another and / or that the contact slide strip (24, 124) and the one or more seals that rest against it are made of different materials. Window according to one of the preceding claims, characterized in that the contact sliding strip (24, 124) has a roughened surface and the one or more seals resting against it have a sliding coating on their sliding side or that this seal has a roughened surface structure on the sliding side and the system sliding strip correspondingly has a sliding coating. Window according to one of the preceding claims, characterized in that a) the contact slide strip (24, 124) consists of an aluminum alloy and / or plastic and / or b) the contact slide strip (24, 124) consists in sections of an aluminum alloy and in sections of plastic. Window according to one of the preceding claims, characterized in that the contact slide strip (24, 124) is fixed to the frame profile of the casement by screwing, riveting, clipping, gluing or the like. Window according to one of the preceding claims, characterized in that the contact slide strip (24, 124) has a cable groove (134) into which a cable (135) can be inserted. Window according to one of the preceding claims, characterized in that adjacent contact slide strips (24, 124) of the casement are connected to one another in corner areas of the casement via corner connector contact slide pieces (130). Window according to one of the preceding claims, characterized in that the contact sliding strip (24, 124) is intended exclusively for contacting the seals and does not take on any other static function of the sash.

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