EP4102022B1 - Window or door cavity profile, system with such a cavity profile and frame made from same - Google Patents

Description

The invention relates to an extruded window or door hollow chamber profile according to the preamble of claim 1. Such a hollow chamber profile can preferably have an integrated stiffener ex works and includes at least one fastening area for fastening the hollow chamber profile to or for connecting the hollow chamber profile to an external component , which fastening area is designed and provided for receiving a fastening means profiled on the edge. The hollow chamber profile has at least one fastening channel in the fastening area, which is oriented perpendicular to an extrusion longitudinal direction of the hollow chamber profile. The fastening channel has a channel longitudinal axis, is closed at its ends perpendicular to the channel longitudinal axis by an outer wall of the hollow chamber profile and is laterally delimited parallel to the channel longitudinal axis by channel side walls. The fastening channel is also divided into at least two partial fastening channels, which partial fastening channels are spaced apart from one another in the direction of the channel longitudinal axis by at least one intermediate region.

The invention also relates to claim 8, a system consisting of an extruded window or door hollow chamber profile according to the invention and at least one additional, separate profile element.

The invention also relates to claim 11 to a system consisting of an extruded window or door hollow chamber profile according to the invention, optionally at least one additional, separate profile element, and at least one edge-profile fastening means, preferably screw.

With claim 13, the invention further relates to a frame for a door or a window, which is formed from several sections of hollow chamber profiles according to the invention which are connected to one another in connection areas, preferably welded.

A similar hollow chamber profile is, for example, from DE 10 2020 108 412.9 , the EP 2 079 895 B1 or the DE 43 38 181 C1 known.

Other similar hollow chamber profiles are shown here NL 7 003 925 A , DE 25 53 801 A1 , FR 2 800 437 A1 and DE 25 28 264 A1 .

Such hollow chamber profiles can be used in particular for the production of frames. A frame is that part of a window or door that is immovably connected to the structure or generally to an "external component" (in contrast to the regularly movable sash (frame)).

EP 1 693 546 A1 shows a profile for a frame with building-side projections, between which an insulating material is accommodated.

The hollow chamber profiles are usually connected to the masonry (reveal) of the building or to any other external components at defined intervals using assembly or fastening devices, such as spacer assembly screws.

DE 10 2014 104 190 A1 shows a plastic hollow chamber profile for window and door construction with a fold arranged on the outside of the profile, which plastic hollow chamber profile has a groove on its outside profile opposite the fold for receiving a head of a fastener. As a result, the cross-sectional area of the groove is almost completely filled at this point and the space below the outside of the profile is free for connecting a connecting profile, for example a frame widening, a sill profile or the like, to the plastic hollow chamber profile according to the invention.

Special, high frames in so-called closed or open versions are known on the market (see Figures 1 and 2 ). These are designed as separate items (manufactured on different tools), so that a window manufacturer has to decide in advance on one of the two versions and/or ensure double storage.

Each of these previously known solutions has specific advantages and disadvantages. This is the case with closed, high frames Figure 1 , which regularly have two reinforcement chambers arranged one above the other, screwing in the upper reinforcement chamber is only possible with appropriate additional effort (e.g. milling out the frame base area). For the open frame according to Figure 2 this additional expense is eliminated; However, when installing the window, a deep undercut is created, which requires special assembly and results in a large free distance between the assembly screw and the building structure, which has a disadvantageous effect on the stability that can be achieved.

There is a need for a hollow chamber profile of the type mentioned, which enables both processing and assembly options in one component and thereby reduces the profile variety of the window manufacturer without having to make the additional effort mentioned or compromise on stability.

The invention is therefore based on the object of developing a hollow chamber profile of the type mentioned in such a way that both processing and assembly options are made possible with the same profile and thereby reducing the profile variety of the window manufacturer without having to make the additional effort mentioned or compromise on stability must.

The object is achieved according to the invention by an extruded window or door hollow chamber profile with the features of claim 1, by a system with the features of claims 8 or 11 and by a frame with the features of claim 13.

Advantageous developments of the subject matter of the invention are defined in the subclaims.

According to the invention, an extruded window or door hollow chamber profile, preferably with reinforcement integrated ex works, with at least one fastening area for fastening the hollow chamber profile to or for connecting the hollow chamber profile to an external component, in particular to a masonry (structure), which fastening area is for receiving a fastening means profiled on the edge is designed and provided, which hollow chamber profile has at least one fastening channel in the fastening area, which is oriented perpendicular to an extrusion longitudinal direction of the hollow chamber profile, which fastening channel has a channel longitudinal axis, is closed at its ends perpendicular to the channel longitudinal axis by an outer wall of the hollow chamber profile and parallel to the channel -Longitudinal axis is laterally limited by channel side walls, characterized in that the hollow chamber profile has at least two projections in the area of the outer outer wall facing or to be faced in the assembled state of the hollow chamber profile of the external component, which extend at a distance from and parallel to the channel longitudinal axis and which between them define a clear space that opens outwards and extends parallel to the longitudinal axis of the channel beyond the fastening channel. The hollow chamber profile thus enables the simple production of an open frame, which means that it is possible to introduce reinforcement (e.g. for a post connection) in the area of the free space without further milling or the like.

In addition, in the hollow chamber profile according to the invention it is provided that the fastening channel is divided into at least two partial fastening channels, which partial fastening channels are spaced apart from one another in the direction of the channel longitudinal axis by at least one intermediate region, the channel side walls in the intermediate region being at a greater distance from one another have than in an area of the partial fastening channels.

Ultimately, it is important that there is at least one section along the fastening channel in which a fastening screw of the like can interact with the side channel walls in order to achieve a sufficient fastening effect. As the term “fastening channel” is used here, it is not necessary that it be continuously designed for the interaction mentioned over its entire length.

The proposed construction is designed in such a way that the screw hold in the profile is sufficiently dimensioned for standard loads even without additional reinforcement due to the partial fastening channels or screw chambers provided according to the invention. Especially at on It was possible to determine a comparable level of rigidity to solutions with a continuous screw channel using mounting devices (fastening screws) loaded with transverse forces. Transverse forces result from loads that typically occur on windows due to wind loads.

In a system according to the invention consisting of an extruded window or door hollow chamber profile according to the invention and at least one additional, separate profile element, which profile element has dimensions based on its cross section that correspond to corresponding dimensions of the free space, so that the profile element can be accommodated in the free space in its assembled state or is recorded. The profile element is also referred to below as a “sill”. It can be made of a plastic, for example PVC. Through a special design of the opening (the free space), it can be achieved within the scope of embodiments described below that the opening (the free space) can be closed by the sill, in order to enable the advantages of a closed frame.

According to the invention, it is provided that the profile element is flush with the projections when, in its assembled state, it lies against the outer outer wall within the free space. The profile element thus just fills the open hollow chamber profile without requiring additional installation space.

In a system according to the invention consisting of a hollow chamber profile according to the invention, preferably an additional, separate profile element and at least one fastening means profiled on the edge, preferably a screw, it is provided that the fastening means is introduced into several partial fastening channels along the longitudinal axis of the channel, with the external component being an extension arranged or to be arranged on the channel longitudinal axis; and/or that the fastening means is introduced transversely to the channel longitudinal axis into at least one of the partial fastening channels, wherein the external component is arranged or is to be arranged laterally spaced from the channel longitudinal axis in the region of an end face of the hollow chamber profile that is different from the two outer walls; wherein preferably an outer diameter of the fastening means is larger than a clear cross section the partial fastening channels or at least one of the partial fastening channels; wherein optionally the fastener penetrates the profile element.

In a frame according to the invention for a door or a window, which is formed from several sections of hollow chamber profiles according to the invention which are connected to one another in connection areas, preferably welded, it is provided that in at least one of the connection areas a preferably metallic connecting element, preferably a connection angle, is connected in two to one another connected hollow chamber profile sections are introduced in the area of the respective fastening channel; and/or that a preferably metallic reinforcing element is inserted into at least one hollow chamber profile section, with appropriate development preferably into the at least one intermediate region or into at least one of the intermediate regions; and/or in which an additional, separate profile element is inserted into the free space of at least one hollow chamber profile section.

Window profiles known on the market or generally hollow chamber profiles of the type mentioned must be stiffened accordingly depending on the existing requirements and the expected loads. Conventional window profiles have specially sized hollow chambers. Metal profiles are inserted into these chambers and screwed together to increase the stability of the window or door. Such chambers are called reinforcement chambers. Although we only talked about windows above, the same problem also applies to door profiles, which is why the following is simply referred to as “hollow chamber profiles” or “profiles” for short.

Alternatively, fiber-reinforced materials or thermally separated metal reinforcements are increasingly being used, which can already be integrated into the profile at the factory.

Metals have high thermal conductivity. The reinforcements therefore lead to a deterioration in the thermal insulation within the construction. Innovative constructions with fiber-reinforced components or with thermally separated stiffeners can significantly improve thermal insulation. Due to the greatly varying loads depending on the installation location and application However, precise dimensioning of the reinforcements integrated into the profile ex works is very imprecise. The stiffening is therefore often over- or under-dimensioned depending on the application. In some applications, additional metal reinforcement is therefore advantageous or even necessary.

In conventional solutions, the screw connection penetrates the reinforcement chamber so that the profile is attached to the masonry via the reinforcement. In the case of fiber-reinforced profiles, the required screw retention in the profile is achieved, for example, with the help of screw channels.

However, the provision of a continuous screw channel, in particular according to the prior art mentioned above, has the fundamental disadvantage that additional reinforcement can no longer be used in this area. This greatly limits the area of application of appropriately designed frame profiles.

In some constructions, adjacent hollow chambers of the profile can then be stiffened. However, with such bracing of adjacent hollow chambers, the drilling and screwing positions must be offset in order to connect the bracing to the masonry. This is difficult to implement in terms of control and production technology.

In summary: Conventional window profiles with subsequent metal reinforcement have the disadvantages of poor thermal insulation and high weight. Window profiles with factory-integrated bracing are difficult to dimension; Additional reinforcement is difficult to achieve; in particular, there is no uniform screw position with additional reinforcement. Depending on the intended use and load, window or door constructions nowadays have to be dimensioned differently. When using steel reinforcements, an offset assembly axis is therefore disadvantageously necessary.

For special loads, for example when using fall protection or on a French balcony, the intermediate area can also be used a (metallic) reinforcement can be inserted into the profile. The mounting holes advantageously remain on the same axis and position.

The screw connection then penetrates the material accumulations in the profile, which are preferably present in the area of the partial fastening channels or screw chambers (or are formed by the screw chambers themselves), and the stiffening equally. In areas of application where metal reinforcement is required, the profile can be specifically and partially stiffened without having to change the production process for the holes and screw connections. The reinforcement effect can therefore be dimensioned particularly efficiently.

The term “screw chamber” preferably means that the chambers in question (in a cross section through the profile) are surrounded or enclosed all around by profile material (webs). The screw chambers themselves represent accumulations of material in the profile, which increases stability.

As already mentioned above, the hollow chamber profile according to the invention provides that the channel side walls are at a greater distance from one another in the intermediate region than in an area of the partial fastening channels. In this way, sufficient space can be created in the intermediate area for the introduction of a suitably sized reinforcement profile. In particular, the channel side walls in the intermediate region recede at least to such an extent that no interaction with the mounting/fastening means no longer occurs.

In this context, a special development of the hollow chamber profile according to the invention provides that the intermediate region is designed as a reinforcing chamber to accommodate a preferably metallic reinforcement.

A particularly advantageous development of the hollow chamber profile according to the invention provides that at least one of the partial fastening channels forms a channel projection with a locally limited cross section in the area of the outer outer wall. This channel projection, which serves as a screw chamber, can thus be arranged outside of said reinforcement chamber in the free space so that it does not hinder the introduction of said reinforcement.

Another development of the hollow chamber profile according to the invention provides that an accumulation of material or a thickening, in particular of the relevant outer wall, is provided within the partial fastening channels, preferably on at least one of the two outer walls. As a result, the holding effect already mentioned can be improved even further. However, the partial fastening channels themselves also represent certain accumulations of material, as has already been pointed out. This effect can be further improved by the additional material accumulations or thickenings mentioned

In yet another development of the hollow chamber profile according to the invention, it is provided that the channel side walls have projections on their inside which delimits at least one of the partial fastening channels. Such projections can interact mechanically with a fastener introduced into the channel in order to improve the fastening effect.

In order to further increase this effect, with a corresponding development of the hollow chamber profile according to the invention, it can be provided that a maximum clear distance is provided between projections that extend from different channel side walls in a transverse direction transverse to the channel longitudinal axis, which maximum clear distance is preferably 2 mm does not exceed; and/or that a maximum distance is provided between two projections adjacent in a longitudinal direction along the channel longitudinal axis, which maximum distance is preferably 2 mm or less; and/or that a maximum distance of preferably 2 mm or less is provided between a projection and a channel side wall opposite the projection. In this way, it can be ensured in particular that a fastening means introduced into the channel interacts with the projections mentioned. From the applicant's point of view, the specified values have proven to be particularly suitable.

In this context, it can also be provided that projections emanating from different channel side walls are offset in the longitudinal direction along the channel longitudinal axis or are arranged at the same height. This allows the fastening effect to be adapted to different requirements.

In yet another development of the hollow chamber profile according to the invention, it can be provided that at least some of the projections extend at an angle with respect to the relevant channel side walls, which angle is preferably either 90° or deviates from 90° and is preferably between 30° and 60° , most preferably 45°, with projections arranged at the same height preferably having the same angles. This can also contribute to an improved fastening effect.

In an extremely advantageous development of the hollow chamber profile according to the invention, it is provided that the intermediate region is designed as a reinforcing chamber to accommodate a preferably metallic reinforcement. The special advantages of such a design have already been pointed out in detail above. This can in particular mean that the intermediate region is designed to be sufficiently large in order to be able to accommodate a statically effective reinforcement. This can imply that in the direction of the channel longitudinal axis there is a significant distance between the partial fastening channels or screw chambers or that the channel side walls in the intermediate region stand back significantly compared to the partial fastening channels.

In practice, the reinforcement chamber can have typical dimensions between 20 and 40 mm in height and width. The screw chambers can have a width of preferably 6 to 8 mm (chamber width) and a height of 3 to 10 mm.

In yet another development of the hollow chamber profile according to the invention, it can be provided that the channel side walls are laterally supported in the area of at least one partial fastening channel at least on one side, preferably on both sides, transversely to the longitudinal direction of extrusion. This improves the Stability of the partial fastening channels when inserting a fastener and thus increases the holding effect.

In another further development of the hollow chamber profile according to the invention, it can be provided that at least one channel side wall is supported at an angle of 90 degrees with respect to the longitudinal axis of the channel. In practice, this results in a particularly good stabilizing effect.

Additionally or alternatively, in another development of the hollow chamber profile according to the invention, it can also be provided that at least one channel side wall is supported at an angle other than 90 degrees with respect to the channel longitudinal axis. This can have particular advantages with regard to the use of material required in the production of the hollow chamber profile.

Another advantageous development of the hollow chamber profile according to the invention provides that at least one partial fastening channel is designed as an extension on a continuous transverse web of the hollow chamber profile, preferably in the assembly direction below or outside of the relevant transverse web. Such a design has proven to be particularly robust in practice. In addition, the crossbar in question can create a thermally effective additional insulating chamber within the profile, which brings corresponding energetic advantages.

In a further development of the hollow chamber profile according to the invention, it can also be provided that the fastening channel is at least partially filled with a solid or pasty material, preferably with a thermally effective insulating material and/or a fastening material, in particular an insulating foam or injection mortar. This allows both the thermal insulation properties and the holding effect to be further improved.

In another development of the hollow chamber profile according to the invention it is provided that at least one of the projections has at least one hollow chamber. This allows the stability of even longer projections to be increased.

In yet another development of the hollow chamber profile according to the invention, it is provided that at least one terminal web is arranged on at least one of the projections, preferably at least two terminal webs. Such webs can form an advantageous positive connection with insulating or fastening material at the interface to the building.

In yet another development of the hollow chamber profile according to the invention, it is provided that at least one of the projections has at least one further projection on its inside facing the free space, preferably a projection with a triangular cross section. This projection can serve as a stiffener for the first-mentioned projections, as a captive device and/or as a spacer for the inserted profile element (sill). The projection preferably serves as a captive device for an optional (e.g. as part of a further development of a system according to the invention or alternatively) in the back of the frame, i.e. on the side facing the structure, or to be arranged insulating element, e.g. made of Styrofoam. The insulating element can in particular be provided in place of the profile element.

However, the projection mentioned can also serve as a locking projection for locking a correspondingly designed separate profile element in a system according to the invention. Of course, both types of projections can also be provided at the same time, then preferably at different positions on the inside mentioned.

A particularly advantageous development of the hollow chamber profile according to the invention provides that, compared to the mentioned (locking) projection, another such (locking) projection is present in the area of the free space in order to improve the holding effect. This further (locking) projection is preferably arranged on the partial fastening channel which is designed as an extension on a continuous transverse web of the hollow chamber profile. However, the invention is in no way limited to such a special arrangement of the further (locking) projection.

In an advantageous development of the hollow chamber profile according to the invention it is provided that at least one of the projections is in the free space facing inside has a section oriented obliquely with respect to the channel longitudinal axis, so that the free space in the assembled state of the hollow chamber profile widens in a direction away from the external component and forms an undercut. This undercut can be used to first insert the profile element obliquely into the free space and then bring it into its (straight) assembly position, which can be accompanied by a deformation of part of the profile element, which ensures a frictional connection (see below).

In another advantageous development of the hollow chamber profile according to the invention, it is provided that the profile element is designed as a hollow chamber profile element, preferably with at least two hollow chambers, with most preferably and with a corresponding design the profile element having a recess for receiving the channel projection in its assembled state. The profile element is therefore correspondingly lightweight with a relatively high mechanical load capacity. It can include the channel projection without this having a negative impact on the installation space requirement.

1. a) wenigstens einen ersten Steg, der in dem Montagezustand bündig mit den Vorsprüngen abschließt; und/oder
2. b) wenigstens einen zweiten Steg, der in dem Montagezustand die Außenwandung berührt und dabei im Bereich des genannten Hinterschnitts angeordnet ist; und/oder
3. c) wenigstens einen dritten Steg, der in dem Montagezustand an einer seitlichen Begrenzung des Freiraums anliegt und zum Erzeugen eines Kraftschlusses verformt oder verformbar ist vorzugsweise zum Verrasten an dem erwähnten weiteren Vorsprung des Hohlkammerprofils.

In yet another advantageous development of the hollow chamber profile according to the invention, it is provided that the profile element has a number of webs projecting outwards, namely:

1. a) at least one first web, which is flush with the projections in the assembled state; and or
2. b) at least one second web, which in the assembled state touches the outer wall and is arranged in the area of said undercut; and or
3. c) at least one third web, which in the assembled state rests against a lateral boundary of the free space and is deformed or deformable to produce a frictional connection, preferably for locking on the mentioned further projection of the hollow chamber profile.

The web according to a) ensures a flush finish with the hollow chamber profile. The web according to b) provides support on the hollow chamber profile and can specifically enable the aforementioned oblique insertion (pivoting in). The web according to c) can preferably be angled laterally in relation to the remaining profile element and have at least one desired kink or the like. In this area, the profile element is preferably wider than a clear width of the free space, so that it is deformed when inserted and thereby ensures a frictional connection for fixing the profile element to the hollow chamber profile.

Preferably, two webs according to a) are provided, which have mutually facing projections, in particular at their free ends, so that an undercut is formed in which an optional stiffening element, for example made of flat steel, is held captively. This provides additional stability.

The profile element can also have a (lateral) projection, preferably opposite the third web, i.e. on a side facing away from the third web, which projection interacts with the mentioned further such (locking) projection in the area of the free space in order to achieve the holding effect improve.

Finally, another development of the hollow chamber profile according to the invention provides that lateral outer walls of the projections represent a smooth, flat continuation of the lateral outer walls of the remaining hollow chamber profile. In other words: The projections represent an increase in the profile cross-section that is structurally invisible from the side.

• Figur 1 zeigt im Querschnitt ein konventionelles Fensterprofil nach dem Stand der Technik;
• Figur 2 zeigt ein weiteres konventionelles Fensterprofil nach dem Stand der Technik;
• Figur 3 zeigt im Querschnitt ein erfindungsgemäßes Hohlkammerprofil;
• Figur 4 zeigt im Querschnitt ein erfindungsgemäßes Hohlkammerprofil, das mittels eines Befestigungsmittels an einem Bauwerk befestigt ist, mit eingesetztem zusätzlichem Profilelement;
• Figur 5 zeigt im Querschnitt ein erfindungsgemäßes Hohlkammerprofil, das mittels eines Befestigungsmittels an einem Bauwerk befestigt ist, mit eingesetztem zusätzlichem Profilelement und einem metallischen Versteifungselement;
• Figur 6 zeigt im Querschnitt ein nicht erfindungsgemäßes Hohlkammerprofil;
• Figur 7 zeigt im Querschnitt das Hohlkammerprofil aus Figur 6, das mittels eines Befestigungsmittels an einem Bauwerk befestigt ist, mit eingesetztem zusätzlichem Profilelement; und
• Figur 8 zeigt einen Schnitt durch einen Rahmen für eine Tür oder ein Fenster.

Further properties and advantages of the invention result from the following description of exemplary embodiments based on the drawing.

• Figure 1 shows a cross section of a conventional window profile according to the state of the art;
• Figure 2 shows another conventional window profile according to the state of the art;
• Figure 3 shows a cross section of a hollow chamber profile according to the invention;
• Figure 4 shows a cross-section of a hollow chamber profile according to the invention, which is attached to a structure by means of a fastener, with an additional profile element inserted;
• Figure 5 shows in cross section a hollow chamber profile according to the invention, which is attached to a building by means of a fastening means, with an additional profile element and a metallic stiffening element inserted;
• Figure 6 shows a cross section of a hollow chamber profile not according to the invention;
• Figure 7 shows the hollow chamber profile in cross section Figure 6 , which is attached to a structure by means of a fastener, with an additional profile element inserted; and
• Figure 8 shows a section through a frame for a door or window.

Figure 1 shows a cross section through a conventional window profile or hollow chamber profile 1 according to the prior art with two steel reinforcements 2, 2 'and with a mounting means 3 (fastening screw) for fastening the window profile 1 to a building or structure 4. This results in the details described in the introduction Disadvantages, in particular, the upper reinforcement chamber in the picture is only accessible from the outside (from the side of building 4) via the other (lower) reinforcement chamber.

Figure 2 shows a cross section through another conventional, open window profile or hollow chamber profile 1 according to the prior art with steel reinforcement 2 and with a mounting means 3 (fastening screw) for attaching the window profile 1 to a building or structure 4. This results in the disadvantages described in detail in the introduction , especially due to the large free screw length X.

The window manufacturer must decide between the two profiles 1 Figure 1 and Figure 2 decide or provide for double storage.

Figure 3 shows a cross section through a hollow chamber profile 1 according to the invention. The hollow chamber profile 1 has a factory-integrated one at reference number 5 Stiffening, in particular made of a fiber composite material. Furthermore, the hollow chamber profile 1 at reference numeral 6 has a fastening area which is used to fasten the hollow chamber profile 1 to or to connect the hollow chamber profile 1 to an external component, in the present case with a building (cf. Figures 1 , 2 or 4 ), which is arranged below or outside of the hollow chamber profile 1 in the assembly direction (screwing direction). The fastening area 6 is designed to accommodate a fastening means profiled on the edge, namely the fastening screw (cf. Figures 1 , 2 or 4 ), trained and provided, as can be seen, for example, from the Figure 4 can be easily seen. The hollow chamber profile 1 has a fastening channel 7 in the fastening area 6, which is oriented perpendicular to a longitudinal extrusion direction 8 of the hollow chamber profile 1, which longitudinal extrusion direction 8 extends into the plane of the drawing. The fastening channel 7 has a channel longitudinal axis 9, which is in Figure 3 is shown as a dashed line. Furthermore, the fastening channel 7 is closed at its ends perpendicular to the channel longitudinal axis 9 by an outer wall of the hollow chamber profile 1. These outer walls are in Figure 3 with the reference number 1a (for the inner outer wall in the so-called rebate area) or 1b (for the outer outer wall that faces the building). Parallel to the channel longitudinal axis 9, the fastening channel 7 is laterally delimited by channel side walls 7a, 7b. However, these channel side walls 7a, 7b are not designed to be smooth and continuous, but rather have various special features:

The fastening channel 7 is namely divided between the two outer walls 1a, 1b into two partial fastening channels 7.1 and 7.2, which partial fastening channels 7.1, 7.2 (here also referred to as screw chambers) in the direction of the channel longitudinal axis 9 through at least one intermediate region 10 from each other are spaced apart. The intermediate area 10 is dimensioned sufficiently large that additional reinforcement can be inserted therein (analogous to reference number 2 in Figure 2 ).

This results in the following picture with a view to the channel side walls 7a, 7b mentioned: the channel side wall 7a initially forms the left boundary of the (upper) partial fastening channel 7.1, then extends parallel to the outer wall 1a further to the left, away from the channel longitudinal axis 9, then bends downwards parallel to the channel longitudinal axis 9 and then goes into the Outer wall 1b above. The channel side wall 7b, on the other hand, initially forms the right boundary of the (upper) partial fastening channel 7.1, then extends obliquely upwards towards the outer wall 1a and is then formed by the (right) stiffener 5 or by the outer wall 1b.

The fastening screw 3 is in the intermediate area 10 (cf. Figure 4 ) and the channel side walls 7a, 7b do not interact.

Alternatively, it could also be formulated that the fastening channel 7 only has defined channel side walls in the area of the partial fastening channels 7.1, 7.2 mentioned. In the intermediate area 10 mentioned or possibly in other intermediate areas (see below), there is therefore no channel side wall in the narrower sense, although of course there are continuous structures within the hollow chamber profile 1 parallel to the channel longitudinal axis 9. Ultimately, what matters in the embodiment shown is that there are at least two aligned partial fastening channels 7.1, 7.2 along the channel longitudinal axis 9, which are not designed to be coherent. In between is the intermediate region 10 mentioned, in which the fastening means 3 traverses or can traverse the hollow chamber profile 1 without interacting with any structures within the hollow chamber profile 1. This is well expressed by the alternatively or synonymously used term “screw chamber” because it suggests that the partial fastening channels are (closed) closed structures within the hollow chamber profile 1. This can be seen in particular from the figures and applies to all configurations described and shown.

The upper screw chamber or the partial fastening channel 7.1 is formed between the outer wall 1a and a transverse web 11 arranged parallel to the outer wall 1a. The lower screw chamber or partial fastening channel 7.2 is designed, so to speak, as a projection or channel projection below the hollow chamber profile 1 (below the (profile) outer wall 1b). The outer wall 1a has a thickening or accumulation of material 12 within the hollow chamber profile 1, while projections 13 are provided on the channel side walls within the partial fastening channel 7.2, which extend approximately transversely to the longitudinal axis 9 of the channel. A clear distance between the channel side walls 7a, 7b or the projections 13 in the area of the screw chambers is coordinated with the mounting or fastening means in such a way that this with its edge profiling 3a ( Figure 4 ) engages in the channel side walls or the projections 13.

In principle, the fastening means 3 can also be screwed into the screw chambers 7.1, 7.2 in the longitudinal extrusion direction 8 of the hollow chamber profile 1, for example in order to fasten additional elements, such as fittings or the like, to the hollow chamber profile 1.

The hollow chamber profile 1 according to Figure 3 points in the area of the external component in the assembled state of the hollow chamber profile 1 (cf. Figures 1 and 2 ) facing or facing outer outer wall 1b two projections 14, 15, which in turn are designed as hollow profiles and each have a profile chamber 14a, 15a. At the ends, the projections 14, 15 each have two webs 14b, 14c; 15b, 15c, which in turn have angled structures 14d, 14e; 15d, 15e. The projections 14, 15 extend at a distance from and parallel to the channel longitudinal axis 9 and define between them an outwardly opening, clear space 16 which extends parallel to the channel longitudinal axis 9 beyond the partial fastening channel (screw chamber) 7.2 . The screw chamber 7.2 projects into the free space 16 as a projection.

At reference number 17, the projections 14, 15 each have a projection with a triangular cross section on their inside facing the free space 16. This projection 17 is designed so that its flat top runs parallel to the outer wall 1b. As the other figures show, one of these projections 17 can also be dispensed with. The projection(s) 17 serves primarily as a captive device for an optional (pre-assembled) insulation material in the back of the frame, e.g. for a Styrofoam element (shown schematically at reference number 19).

At reference numeral 18, the free space 16 forms an undercut in that one of the projections 15 has a section 15f oriented obliquely with respect to the channel longitudinal axis on its inside facing the free space 16.

Accordingly, the free space 16 widens in the assembled state of the hollow chamber profile 1 in a direction away from the external component (cf. Figure 4 ) away.

Figure 4 shows essentially the same hollow chamber profile 1 as in Figure 3 , but with an additional profile element (sill) 100 inserted in the free space 16 and fastening screw 3 (with edge-side profiling 3a) for fixing the hollow chamber profile 1 to a building 4. For reasons of clarity, in Figure 4 essentially only the features of the profile element 100 are described in more detail; otherwise it may go to the Figure 3 to get expelled.

Deviating from Figure 3 has the hollow chamber profile 1 in Figure 4 only a lead of 17. For this purpose, a further projection 14f, which serves as a locking projection, is formed above this projection 17 on the inside of the projection 14, the function of which will be discussed in more detail below. Opposite the locking projection 14f there is another such locking projection 7.2a, which is arranged on the outside of the partial fastening channel (screw chamber) 7.2.

The profile element 100 has two hollow chambers 100a, 100b. On its side facing the building 4, it has two webs 100c, 100d, with which it rests on the building or on its insulating and insulating layer 4a attached between the building 4 and the hollow chamber profile 1. The webs 100c, 100d close flush (in a common plane) with the webs 14b, 14c; 15b, 15c off. At the same time, the profile element 100 rests against the hollow chamber profile 1 in the area of the outer wall 1b with two webs 100e, 100f, which are arranged on the other side of the profile element 100. The web 100f is arranged in the area of the undercut 18. Another web 100g projects laterally from the profile element 100 at an angle of approximately 90 degrees with respect to the (channel longitudinal) axis 9. This web 100g has a desired bend point 100ga, so that its free end 100gb can be deformed inwards (in the direction of the free space 16) upon contact with the projection 14 in order to hold or lock the profile element 100 in the free space 16 in a non-positive manner, by placing the free end 100gb in the area of an undercut of the locking projection 14f. A lateral projection 100h, which is designed to interact with the already mentioned locking projection 7.2a, serves the same purpose.

When inserting the profile element 100, the profile element 100 with the web 100f is preferably first inserted obliquely into the undercut 18. Then the entire profile element 100 is tilted counterclockwise, whereby the web 100g is deformed as described until the free end 100gb in the area of an undercut of the locking projection 14f and the lateral projection 100h lock with the already mentioned locking projection 7.2a. The projection(s) 17 serves primarily as a captive device for an optional (pre-assembled) insulating material in the back of the frame, for example for a Styrofoam element (at reference number 19 in Figure 3 shown schematically). The projections 17 can also serve as additional protection against loss for the profile element 100.

A free space between the webs 14b, 14c or 15b, 15c is according to Figure 4 filled with the material of the insulating and insulating layer 4a, so that there is a tight and secure connection between the building 4 and the hollow chamber profile 1.

The fastening screw 3 passes through both screw chambers 7.1, 7.2 along the channel longitudinal axis 9 and also penetrates the profile element 100 in the area of the hollow chamber 100b. Above this hollow chamber 100b, the profile element 100 has a recess 100i, which serves to accommodate the channel projection or the screw chamber 7.2. So the profile element 100 can fill the free space 16 without any protrusion.

How to do that in particular Figures 3 and 4 can still be seen, the screw chambers 7.1 and 7.2 have lateral thickenings or accumulations of material on their (screw channel) side walls, which are not marked in the figures mentioned for reasons of clarity.

Figure 5 shows the same hollow chamber profile 1 as in Figure 4 , again with an additional profile element (sill) 100 inserted in the free space 16 and fastening screw 3 (with edge-side profiling 3a) for fixing the hollow chamber profile 1 to a building 4. For reasons of clarity, in Figure 5 again essentially only the features of the profile element 100 are described in more detail; Otherwise it may be accessed again Figure 3 to get expelled.

Also shows Figure 5 a stiffening element 200, which is preferably designed as a flat steel element and is inserted into the area between the webs 100c, 100d and an outer wall 100j of the profile element 100. For this purpose, the said webs 100c, 100d have mutually facing projections 100ca, 100da at their free ends, so that an undercut is formed in the area mentioned. The stiffening element 200 is held captively between the webs 100c, 100d and preferably also on the outer wall 100j. The fastening screw 3 preferably also passes through the stiffening element 200.

Figure 6 shows a further hollow chamber profile 1, not according to the invention, which essentially corresponds to the profile Figure 3 corresponds. The main differences will only be briefly discussed here:
There is according to Figure 6 no factory-integrated stiffeners (reference number 5 in Figure 3 ). In addition, the reinforcement chamber (the intermediate area 10) is not double-walled on the left and at the top. The fastening channel 7 has only one screw chamber (at reference number 7.2), which screw chamber shows a (locking) projection 7.2a. The projection 14 has two further projections 14f, 17 on its inside - as already mentioned; the projection 15 has no inside projection. The fold area (at reference number 1a) is essentially flat.

The fastening channel 7 is de facto reduced to the partial fastening channel or the only screw chamber 7.2.

Figure 7 shows the hollow chamber profile 1 Figure 6 together with the further profile element 100 according to Figure 4 and a fastening screw 3. For details, please refer to the corresponding description Figures 3 and 4 referred to above.

Finally, it shows Figure 8 a section in or parallel to a glazing plane through a frame 20 for a door or a window, in particular a frame, which consists of several sections 1.1-1.4 of the invention Hollow chamber profiles 1 (cf. Figures 3 and 4 ) is formed. The hollow chamber profile sections 1.1-1.4 are connected to one another in pairs in connection areas 21, preferably welded. In the frame 20 shown, in each of the connecting areas 21 there is a preferably metallic connecting element 22 in the form of an L-shaped connecting angle with its two legs 23 (designated only for one connecting element 22) in two interconnected hollow chamber profile sections 1.1-1.4 in the area of the respective Intermediate area 10 (dash-dotted line) introduced. It can be held therein in a clamping, force-fitting manner or in some other way (eg materially bonded) in order to reinforce the connection areas 21. This embodiment is not limited in terms of the type and number of connecting elements 22.

The frame 20 can be connected to external components via the hollow chamber profile sections 1.1-1.4 in the manner described, for example with a soffit surrounding or receiving the frame (structure 4, not shown here, cf. Figure 4 , 5 or 7 ).

As an example, a reinforcement or a reinforcement element is introduced into one of the intermediate areas 10 at reference number 2. Of course, the other intermediate areas 10 can also be used in accordance with Figure 5 take up the appropriate reinforcements 2. The reinforcements 2 can also extend into the connection areas 21, which in Figure 5 is not shown.

In one of the free spaces 16, a profile element 100 is arranged as an example. Of course, the other free spaces 16 can also be used accordingly Figure 5 accommodate corresponding profile elements 100. The profile elements 100 can also extend into the connection areas 21, which in Figure 5 is also not shown. The optional stiffening elements mentioned are not shown here.

Claims (13)

1. Extruded hollow-chamber profile (1) for a window or door, preferably with factory-installed stiffening (5), having at least one fastening region (6) for fastening or connecting the hollow-chamber profile (1) to an external component (4), which fastening region (6) is configured and provided for receiving a peripherally profiled fastening means (3), which hollow-chamber profile (1) has, in the fastening region (6), at least one fastening channel (7) which is oriented perpendicularly to a longitudinal extrusion direction (8) of the hollow-chamber profile (1),

   which fastening channel (7) has a channel longitudinal axis (9), is closed at each of its ends perpendicular to the channel longitudinal axis (9) by an outside wall (1a, 1b) of the hollow-chamber profile (1) and, parallel to the channel longitudinal axis (9), is delimited laterally by channel side walls (7a, 7b),

   which fastening channel (7) is divided into at least two fastening sub-channels (7.1, 7.2), which fastening sub-channels (7.1, 7.2) are spaced apart from one another in the direction of the channel longitudinal axis (9) by at least one intermediate region (10); characterised in that

   the hollow-chamber profile (1) has, in the region of the outer outside wall (1b) that faces towards or is to face towards the external component (4) in the mounted state of the hollow-chamber profile (1), at least two projections (14, 15) which extend parallel to and spaced apart from the channel longitudinal axis (9) and which define between them a clear space (16) that opens towards the outside, which clear space extends parallel to the channel longitudinal axis (9) beyond the fastening channel (7); and

   the channel side walls (7a, 7b) are spaced further apart from one another in the intermediate region (10) than in a region of the fastening sub-channels (7.1, 7.2).
2. Hollow-chamber profile (1) according to claim 1, wherein the intermediate region (10) is configured as a reinforcement chamber for receiving a reinforcement (2), preferably a metal reinforcement.
3. Hollow-chamber profile (1) according to claim 1 or 2, wherein at least one of the fastening sub-channels (7.2) forms a channel projection of locally limited cross-section in the region of the outer outside wall (1b).
4. Hollow-chamber profile (1) according to any one of claims 1 to 3, wherein at least one of the projections (14, 15) has at least one hollow chamber (14a, 15a).
5. Hollow-chamber profile (1) according to any one of claims 1 to 4, wherein on at least one of the projections (14, 15) there is arranged at least one terminal rib (14b, 14c; 15b, 15c), preferably at least two terminal ribs.
6. Hollow-chamber profile (1) according to any one of claims 1 to 5, wherein at least one of the projections (14, 15) has, on its inner side that faces towards the clear space (16), at least one further projection (17, 14f), preferably a projection of triangular cross-section, there preferably being present opposite the further projection (14f) at least one further such projection (7.2a) in the region of the clear space (16).
7. Hollow-chamber profile (1) according to any one of claims 1 to 6, wherein at least one of the projections (15) has, on its inner side that faces towards the clear space (16), a portion (15f) oriented at an angle with respect to the channel longitudinal axis, so that in the mounted state of the hollow-chamber profile (1) the clear space (16) widens in a direction away from the external component (4) and forms an undercut (18).
8. System comprising an extruded hollow-chamber profile (1) for a window or door according to any one of the preceding claims and at least one additional, separate profile element (100), which profile element (100) has, in respect of its cross-section, dimensions which are complementary to corresponding dimensions of the clear space (16), so that in its mounted state the profile element (100) is receivable or received in the free space (16), wherein, when appended to claim 6, preferably the profile element (100) is snapped or snappable together with the hollow-chamber profile (1) at the further projection (14f) or at the further projections (14f, 7.2a);
   characterised in that
   the profile element (100) ends flush with the projections (14, 15) when in its mounted state inside the clear space (16) it bears against the outside wall (1b).
9. System according to claim 8, wherein the profile element (100) is in the form of a hollow-chamber profile element, preferably having at least two hollow chambers (100a, 100b), wherein most preferably and when appended to claim 3, the profile element (100) has a recess (100i) for receiving the channel projection in its mounted state.
10. System according to claim 8 or 9, wherein the profile element (100) has a number of outwardly projecting ribs (100c-g) or projections (100h), namely:

    - at least one first rib (100c, 100d) which in the mounted state ends flush with the projections (14, 15), there preferably being two such ribs (100c, 100d) which have mutually facing projections (100ca, 100da) especially at their free ends, so that an undercut is formed in which an optional stiffening element (200), for example made of flat steel, is held captive; and/or

    - at least one second rib (100e, 100f) which in the mounted state is in contact with the outside wall (1b) and is preferably arranged in the region of the undercut (18) according to claim 7;
    and/or

    - at least one third rib (100g) which in the mounted state bears against a lateral boundary of the clear space (16) and is deformed or deformable to create a force-based connection, when appended to claim 6 preferably for snap-engagement with the further projection (14f); and/or

    - at least one projection (100h), preferably on a side remote from the third rib (100g), which projection (100h), when appended to claim 6, co-operates interlockingly with the further such projection (7.2a).
11. System comprising a hollow-chamber profile (1) according to any one of claims 1 to 7 and at least one peripherally profiled fastening means (3), preferably a screw, wherein the fastening means (3) has been introduced along the channel longitudinal axis (9) into the fastening sub-channels (7.1, 7.2), the external component (4) being arranged or arrangeable in extension of the channel longitudinal axis (9); and/or

    wherein the fastening means (2) has been introduced transversely with respect to the channel longitudinal axis (7) into at least one of the fastening sub-channels (7.1, 7;2), the external component being arranged or arrangeable spaced apart laterally from the channel longitudinal axis (9) in the region of an end face of the hollow-chamber profile (1) that is different from the two outside walls (1a, 1b);

    wherein preferably an external diameter of the fastening means (3) in the region of the peripheral profiling (3a) is greater than an inside cross-section of the fastening sub-channels (7.1, 7.2) or of the at least one of the fastening sub-channels (7.1, 7.2).
12. System according to claim 11 having a profile element (100), as defined in any one of claims 8 to 10, wherein the fastening means (3) passes through the profile element (100).
13. Frame (20) for a door or window, which frame is formed from a plurality of sections (1.1-1.4) of hollow-chamber profiles (1) according to any one of claims 1 to 7, which sections are connected to one another, preferably welded to one another, in connection regions (21), wherein in at least one of the connection regions (21), a connection element (22), preferably a metal connection element, preferably a connection bracket, has been introduced into two mutually connected hollow-chamber profile sections (1.1-1.4) in the region of the respective intermediate region (10); and/or

    wherein a reinforcement element (2), preferably a metal reinforcement element, has been inserted into at least one hollow-chamber profile section (1.1-1.4), into the at least one intermediate region (10) or into at least one of the intermediate regions (10); and/or

    wherein a profile element (100), as defined in any one of claims 8 to 10, has been inserted into the clear space (16) of at least one hollow-chamber profile section (1.1-1.4).

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