EP4102019B1 - 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 an intermediate region which is designed as a reinforcement chamber to accommodate a preferably metallic reinforcement. 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 invention also relates to claim 13, a system consisting of an extruded window or door hollow chamber profile according to the invention and at least one fastening means profiled on the edge, preferably a screw.

With claim 14, 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 generic hollow chamber profile is, for example, from DE 10 2014 104 190 A1 , the DE 10 2020 108 412.9 , the EP 2 079 895 B1 or the DE 43 38 181 C1 known. From this prior art there is a hollow chamber profile known with a continuous fastening channel, which fastening channel can be interrupted by intermediate webs.

DE 10 2014 104 190 A1 also disclosed in the Figure 1 a plastic hollow chamber profile made of several hollow chambers extending over the length of the profile, each of which is surrounded by walls. In the fold area of the profile can be according to Figure 1 a single screw chamber can be provided, which is arranged laterally offset from one of the hollow chambers mentioned.

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. However, due to the greatly varying loads depending on the installation location and application, it is very imprecise to dimension the stiffeners integrated into the profile ex works. 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.

The windows are usually attached to the masonry at defined distances using mounting or fastening devices, such as standoff mounting screws (reveal) of the building or connected to any other external components. 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 according to the prior art mentioned 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. A frame is the part of a window or door frame that is firmly connected to the masonry. The movable part of the window or door, on the other hand, is called the sash or sash frame.

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.

The invention is therefore based on the object of developing a hollow chamber profile of the type mentioned in such a way that a fiber-reinforced profile can be realized into which a metal stiffener can be inserted if necessary. The drilling axes for assembly should be placed or able to be placed in such a way that the same drilling and drilling axes can be achieved without and with metal reinforcement Screw axle can be used for assembly. Depending on the existing requirements, appropriate, suitable bracing can then be used.

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 claim 13 and by a frame with the features of claim 14.

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 an intermediate region which is designed as a reinforcement chamber for receiving a preferably metallic reinforcement, 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 is laterally limited parallel to the channel longitudinal axis by channel side walls, the fastening channel between the two outer walls in at least two partial fastening channels (or screw chambers) is divided, which partial fastening channels are spaced apart from one another in the direction of the channel longitudinal axis by at least the intermediate region and are aligned along the channel longitudinal axis.

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 edge-profiled fastening means, preferably screw, it is provided that the fastening means is inserted into the fastening channel along the longitudinal axis of the channel and is introduced into the partial fastening channels, the external component being arranged or to be arranged in an extension of the channel's longitudinal axis; and/or that the fastening means is introduced transversely to the channel longitudinal axis in at least one of the partial fastening channels, the external component being arranged or to be arranged laterally spaced apart 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 of the partial fastening channels or of at least one of the partial fastening channels.

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 the at least one intermediate region or into at least one of the intermediate regions.

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. A comparable level of rigidity to solutions with a continuous screw channel could be determined, particularly for mounting devices loaded with shear forces (fastening screws). Transverse forces result from loads that typically occur on windows due to wind loads.

For special loads, such as when using fall protection or a French balcony, a (metallic) reinforcement can also be inserted into the profile in the intermediate area mentioned. 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.

A special development of 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 recede in the intermediate region at least to such an extent that there is no longer any interaction with the mounting/fastening means.

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 the hollow chamber profile according to the invention it is provided that the intermediate region is designed as a reinforcement chamber for receiving a preferably metallic reinforcement. On the special advantages of such The design has already been explained 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 50 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 a fastener is inserted 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 stabilization 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 attachment to a continuous transverse web of the hollow chamber profile, preferably in the assembly direction below or outside the relevant crossbar. 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.

Finally, 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.

• Figur 1 zeigt im Querschnitt ein konventionelles Fensterprofil nach dem Stand der Technik;
• Figur 2 zeigt im Querschnitt ein erfindungsgemäßes Hohlkammerprofil, das mittels eines Befestigungsmittels an einem Bauwerk befestigt ist;
• Figur 3 zeigt das Hohlkammerprofil aus Figur 2 mit zusätzlich eingebrachter Armierung;
• Figur 4 zeigt im Querschnitt ein weiteres erfindungsgemäßes Hohlkammerprofil;
• Figur 5 zeigt eine Variante des Hohlkammerprofils gemäß Figur 4;
• Figur 6 zeigt im Querschnitt noch ein erfindungsgemäßes Hohlkammerprofil;
• Figur 7 zeigt im Querschnitt ein anderes erfindungsgemäßes Hohlkammerprofil; 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 a cross-section of a hollow chamber profile according to the invention, which is attached to a building by means of a fastener;
• Figure 3 shows the hollow chamber profile Figure 2 with additional reinforcement;
• Figure 4 shows a cross section of another hollow chamber profile according to the invention;
• Figure 5 shows a variant of the hollow chamber profile according to Figure 4 ;
• Figure 6 shows a cross section of a hollow chamber profile according to the invention;
• Figure 7 shows a cross section of another hollow chamber profile according to the invention; 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 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.

Figure 2 shows a cross section through a hollow chamber profile 1 according to the invention. The hollow chamber profile 1 has, at reference number 5, a factory-integrated stiffener, in particular made of a fiber composite material. Furthermore, the hollow chamber profile 1 at reference number 6 has a fastening area which is used to fasten the hollow chamber profile 1 to or for connecting the hollow chamber profile 1 to an external component, in the present case with the structure 4, which is below or outside the hollow chamber profile in the assembly direction (screwing direction). 1 is arranged. The fastening area 6 is designed and provided to accommodate a fastening means profiled on the edge, namely the fastening screw 3, as can easily be seen from the illustration. 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 2 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 2 provided with the reference numbers 1a or 1b. 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 according to the invention:

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 sufficient large dimensions so that additional reinforcement can be inserted into it (compare reference numeral 2 in Figure 1 and Figure 3 ).

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 merges into the outer wall 1b. 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.

In the intermediate area 10, the fastening screw 3 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 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 is apparent in particular from the figures and applies to all described and shown embodiments of the invention.

The upper screw chamber or the partial fastening channel 7.1 is arranged between the outer wall 1a and a parallel to the outer wall 1a Crossbar 11 is formed. The lower screw chamber or partial fastening channel 7.2 is designed, so to speak, as an approach 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 3 in such a way that this engages with its edge profile 3a 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. This also applies to the screw chambers explained below Figures 4 to 7 .

Figure 3 shows the same hollow chamber profile 1 as in Figure 2 , but with metallic reinforcement 2 introduced into the intermediate area 10 mentioned. In comparison with Figure 2 It follows that the channel longitudinal axis 9 and the insertion direction of the mounting or fastening means 3 have remained unchanged.

In the Figures 4 to 7 Further embodiments of a hollow chamber profile 1 according to the invention are now shown in cross section, each without reinforcement, structure or assembly means. Only the essential differences to the hollow chamber profile 1 according to the Figures 2 and 3 discussed in more detail:
According to the design in Figure 4 the hollow chamber profile 1 has three partial fastening channels or screw chambers 7.1 to 7.3. The upper screw chamber 7.1 and the lower screw chamber 7.3 are identical to the screw chambers 7.1, 7.2 according to Figure 2 educated. However, the hollow chamber profile 1 according to Figure 4 in comparison with the hollow chamber profile Figure 2 in the lower area there are additional hollow chambers 14.1 to 14.3, which form an additional profile level. In the area of the middle of this hollow chamber 14.2, which functions as a further intermediate area 10 ', the screw chamber 7.2 is provided, which, similar to the screw chamber 7.3, is designed as an approach below a crossbar 15 and also has projections 13. All screw chambers 7.1 to 7.3 are aligned along the channel longitudinal axis 9 and are separated from one another along the channel longitudinal axis 9 (namely by the intermediate regions 10, 10 ').

At least in the intermediate area 10 a reinforcement can be introduced again, which is in the Figures 4 to 7 is not shown.

Figure 5 shows a variant of the design according to Figure 4 , in which a further crossbar 15 'is provided in the assembly direction below the crossbar 15, which extends parallel to the crossbar 15 and runs at the level of the lower end (in the assembly direction) of the partial fastening channel (screw chamber) 7.2. The intermediate region 10' is correspondingly formed between the lower crossbar 15' and the outer wall 1b of the hollow chamber profile 1, as shown.

According to the design in Figure 6 the middle screw chamber 7.2 is not designed as an extension below the transverse web 15, but rather is formed at a right angle to a vertical intermediate web 18 via two short transverse webs 16.1, 16.2, which form a further hollow chamber 17 between them, which intermediate web 18 has a lateral (right ) Limitation of the middle hollow chamber 14.2 forms.

According to the design in Figure 7 the screw chamber 7.2 is arranged with an approximately square contour essentially in the middle of the hollow chamber 14.2, with an oblique connecting web 16' extending from each corner of the screw chamber 7.2 into a corresponding corner of the hollow chamber 14.2.

How to do that in particular Figures 4 to 7 can still be seen, all screw chambers 7.1 to 7.3 have lateral thickenings or material accumulations on their (screw channel) side walls in their lower section in the screwing direction, which are provided with the reference number 19 as an example in the figures mentioned. Corresponding thickenings can also be found in the Designs according to Figure 2 or. Figure 3 , however, are not labeled there for reasons of clarity.

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 hollow chamber profiles 1 according to the invention (cf. Figures 2 to 7 ) 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 2 ).

As an example, a reinforcement or a reinforcement element is introduced into one of the intermediate areas 10 at reference number 2, as described above with reference to Figure 3 already described in detail. Of course, the other intermediate areas 10 can also be used in accordance with Figure 8 take up the appropriate reinforcements 2. The reinforcements 2 can also extend into the connection areas 21, which in Figure 8 is not shown.

Claims (14)

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 an intermediate region (10) which is configured as a reinforcement chamber for receiving a reinforcement (2), preferably a metal reinforcement,

   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),

   characterised in that

   between the two outside walls (1a, 1b) the 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 the intermediate region (10) and are in alignment along the channel longitudinal axis (9).
2. Hollow-chamber profile (1) according to claim 1, wherein 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).
3. Hollow-chamber profile (1) according to claim 1 or 2, wherein inside the fastening sub-channels (7.1, 7,2), preferably on at least one of the two outside walls (1a, 1b), there is provided a build-up of material (12, 19) or a thickened portion, especially of the outside wall (1a, 1b) in question.
4. Hollow-chamber profile (1) according to any one of claims 1 to 3, wherein the channel side walls (7a, 7b) have projections (13) on their inner side that delimits at least one of the fastening sub-channels (7.2).
5. Hollow-chamber profile (1) according to claim 4, wherein between projections (13) that extend from different channel side walls (7a, 7b) a maximum clear spacing is provided in a transverse direction transverse with respect to the channel longitudinal axis (9), which maximum clear spacing preferably does not exceed 2 mm; and/or

   wherein between two projections (13) that are adjacent in a longitudinal direction along the channel longitudinal axis (9) a maximum spacing is provided, which maximum spacing is preferably 2 mm or less;
   and/or

   wherein between a projection (13) and a channel side wall (7a, 7b) opposite the projection (13) a maximum spacing of preferably 2 mm or less is provided.
6. Hollow-chamber profile (1) according to claim 4 or 5, wherein projections (13) that extend from different channel side walls (7a, 7b) are offset in a longitudinal direction along the channel longitudinal axis (9) or are arranged at the same height.
7. Hollow-chamber profile (1) according to any one of claims 4 to 6, wherein at least some of the projections (13) extend at an angle with respect to the respective channel side walls (7a, 7b), which angle is preferably either 90° or departs from 90° and is preferably between 30° and 60°, most preferably 45°, wherein projections (13) arranged at the same height according to claim 6 preferably have the same angle.
8. Hollow-chamber profile (1) according to any one of claims 1 to 7, wherein in the region of at least one fastening sub-channel (7.1, 7.2) the channel side walls (7a, 7b) are laterally supported at least on one side, preferably on both sides, transversely with respect to the longitudinal extrusion direction (8).
9. Hollow-chamber profile (1) according to claim 8, wherein the support of at least one channel side wall (7a, 7b) is effected at an angle of 90° with respect to the channel longitudinal axis (9).
10. Hollow-chamber profile (1) according to claim 8 or 9, wherein the support of at least one channel side wall (7a, 7b) is effected at an angle departing from 90° with respect to the channel longitudinal axis (9).
11. Hollow-chamber profile (1) according to any one of claims 1 to 10, wherein at least one fastening sub-channel (7.2) is formed as an attachment to a continuous transverse web (15) of the hollow-chamber profile (1), preferably below the transverse web (15) in question in the mounting direction.
12. Hollow-chamber profile (1) according to any one of claims 1 to 11, wherein the fastening channel (7) is at least partly filled with a solid or paste-like material, preferably with a thermally effective insulation material and/or a fastening material, especially an insulating foam or injection mortar.
13. 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 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 channel (7) and 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 (3) 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).
14. 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 12, 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 the at least one intermediate region (10) or into at least one of the intermediate regions (10).

Images