EXTRUDED WINDOW OR DOOR COLLETIAL PROFILE, SYSTEM WITH SUCH COLLETIAL PROFILE AND FRAME MADE FROM IT

Description

[0001] The invention relates to an extruded window or door hollow chamber profile according to the preamble of claim 1 with 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 to receive a fastening means profiled on the edge, which hollow chamber profile has at least one fastening channel in the fastening area for introducing the fastening means, which is oriented perpendicular to a longitudinal extrusion direction of the hollow chamber profile, which fastening channel has a longitudinal channel axis perpendicular to the longitudinal extrusion direction of the hollow chamber profile, is closed at its ends perpendicular to the longitudinal channel axis by an outer wall of the hollow chamber profile and is delimited laterally by channel side walls parallel to the longitudinal channel axis.

[0002] Furthermore, the invention relates to a system according to claim 13 comprising an extruded window or door hollow chamber profile according to the invention and a fastening means profiled on the edge.

[0003] Furthermore, the invention relates to a frame for a door or a window according to claim 15, which is formed from several sections of hollow chamber profiles according to the invention which are connected to one another in connecting regions and are preferably welded.

[0004] A similar hollow chamber profile or a similar system is known from EP 2079895 B1. To connect the known hollow chamber profile to an external component, a screw is screwed into the fastening channel. This screw has an effective outer diameter that is larger than the clear inner diameter of the fastening channel. To prevent the screw from excessively spreading the side walls of the fastening channel, intermediate webs are provided within the fastening channel, which hold the side walls together when the screw is screwed in.

[0005] The disadvantage here is that the intermediate webs represent thermal bridges, so that the thermally insulating effect of the hollow chamber profile is reduced.

[0006] EP 3 556 986 A1 shows a hollow chamber profile with a relatively wide fastening channel through which a screw is guided without interacting with the side walls of the fastening channel. The fastening channel is supported on one side by a web within the hollow chamber profile, which is disadvantageous for stability reasons.

[0007] US 2019 / 211611 A1 discloses a system for protecting windows in storm-prone areas, in which a window profile has a screw channel that extends transversely to the window plane from the outside to the inside over approximately half the profile depth in order to be able to attach a protective panel outside the window pane using the screw channel.

[0008] The invention is based on the object of creating an extruded window or door hollow chamber profile that is characterized by improved thermal insulation and has increased stability.

[0009] The object is achieved according to the invention by an extruded hollow chamber profile having the features of claim 1. The object is also achieved according to the invention by a system having the features of claim 13. Furthermore, the object is achieved according to the invention by a frame for a door or a window having the features of claim 15. Advantageous developments of the invention are the subject of subclaims.

[0010] According to a first aspect of the invention, an extruded window or door hollow chamber profile is provided with at least one fastening area for fastening the hollow chamber profile to an external component 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, which hollow chamber profile has at least one fastening channel in the fastening area which is oriented perpendicular to a longitudinal extrusion direction of the hollow chamber profile, which fastening channel has a longitudinal channel axis perpendicular to the longitudinal extrusion direction of the hollow chamber profile, is closed at its ends perpendicular to the longitudinal channel axis by an outer wall of the hollow chamber profile, is delimited laterally by channel side walls parallel to the longitudinal channel axis and is formed continuously without interruptions between the two outer walls, further designed in such a way thatthat each of the channel side walls is supported on its outer side facing away from the fastening channel by at least one support web within the hollow chamber profile. This significantly increases the stability of the arrangement. Advantageously, two or more support webs can also be used on at least one outer side.

[0011] Since the fastening channel is continuous and uninterrupted in the area between the two outer walls, there are no adverse heat losses through thermal bridges. Furthermore, it is possible to easily fill the fastening channel completely with a thermal insulation material or similar material. This will be discussed in more detail below. The external support webs nevertheless ensure that the fastening channel does not expand too much, even when a relatively thick fastener, such as a screw, is inserted, thus advantageously ensuring that the fastener can penetrate the channel side walls.

[0012] According to a second aspect of the invention, a system comprises an extruded window or door hollow chamber profile according to the invention and a fastening means profiled on the edge, e.g. a screw, which fastening means is introduced into the fastening channel along the channel longitudinal axis, wherein the external component is arranged or is to be arranged in extension of the channel longitudinal axis.

[0013] Thus, by utilizing the above-mentioned advantages of the invention, external components can be securely and permanently connected to the extruded window or door hollow chamber profile (hereinafter also referred to as "hollow chamber profile").

[0014] The aforementioned "external components" may include, without limitation, fittings, additional (hollow chamber) profile elements or building components such as a reveal or the like.

[0015] According to a third aspect of the invention, a system comprises a window or door hollow chamber profile extruded according to the invention and a fastening means profiled on the edge, e.g. a screw, which fastening means is introduced into the fastening channel transversely to the channel longitudinal axis, 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 which is different from the two outer walls.

[0016] Thus, the hollow chamber profile according to the invention is suitable not only for connecting to external components arranged as an extension of the fastening channel, but additionally or alternatively also for connecting to external components arranged laterally on an end face of the hollow chamber profile. In this context, the above-mentioned advantages of the hollow chamber profile according to the invention in terms of stability and thermal properties can also be utilized.

[0017] According to a fourth aspect of the invention, a frame for a door or window is formed from several sections of hollow chamber profiles according to the invention, which are connected to one another in connecting areas, preferably welded. Furthermore, in at least one of the connecting areas, a preferably metallic connecting element, preferably a connecting angle, is inserted into two interconnected hollow chamber profile sections in the region of the respective fastening channel.

[0018] In this context, the fastening channel advantageously serves an additional function, as it is not only suitable for inserting a fastening element along the channel's longitudinal axis or perpendicular to it, but can also serve to accommodate the aforementioned connecting element. The hollow chamber profile according to the invention is therefore particularly versatile.

[0019] Since, according to the invention, the fastening channel in the area between the two outer walls is designed to be continuous and uninterrupted in the form of intermediate webs, as previously known from EP 2079895 B1, there are no thermal bridges in this area that could reduce the thermal insulating effect of the hollow chamber profile. The support webs arranged outside the fastening channel, via which the respective channel side wall is supported within the hollow chamber profile, also effectively prevent the fastening channel from expanding excessively when a fastening means is introduced into the fastening channel, which fastening means has an effective outer diameter that is larger than the clear inner diameter of the fastening channel. The invention therefore achieves the same advantages as the prior art without having to accept its disadvantages.

[0020] A further development of the hollow chamber profile according to the invention provides that within the fastening channel, on at least one of the two outer walls, a material accumulation or a thickening of the respective outer wall is provided. This contributes to increasing the stability of the respective outer wall during the insertion of the fastening means.

[0021] Another development of the hollow chamber profile according to the invention provides that a marking, in particular a groove, is arranged on at least one of the two outer walls to indicate the position of the fastening channel, preferably on a side of the hollow chamber profile facing away from, or to be facing away from, the external component. This ensures that the fastening channel is reliably "hit" when inserting the fastener, in order to maintain or optimally utilize the function of the hollow chamber profile.

[0022] In another refinement of the hollow chamber profile according to the invention, the channel side walls can have projections on their inner side, which borders the fastening channel. Such projections can advantageously provide additional stiffening to the channel side walls. They can also interact mechanically with the fastening means to increase the stability of the connection.

[0023] In yet another development of the hollow chamber profile according to the invention, a maximum clear distance can be provided between projections extending from different duct side walls in a transverse direction transverse to the duct's longitudinal axis, which maximum clear distance preferably does not exceed 2 mm. According to the DIN EN ISO 10077-2 standard, gap widths < 2 mm are assumed to be completely separate air layers with no air exchange between them. In addition to the lack of heat conduction via intermediate webs, advantageously only minimal or even no convection occurs within the fastening duct due to the formation of individual chambers defined by the aforementioned projections.

[0024] In yet another further development of the hollow chamber profile according to the invention, a maximum distance can be provided between two projections adjacent in a longitudinal direction along the channel's longitudinal axis, which maximum distance is preferably 2 mm or less. Here, too, advantageously, only minimal or even no convection occurs within the fastening channel due to the formation of individual chambers defined by said projections.

[0025] Furthermore, in a further development of the hollow chamber profile according to the invention, a maximum distance of preferably 2 mm is provided between a projection and a channel side wall opposite the projection. Even then, advantageously, only minimal or even no convection occurs within the fastening channel due to the formation of individual chambers defined by the aforementioned projections and channel side walls.

[0026] In the longitudinal direction along the channel's longitudinal axis, however, the distances between the projections can be greater than 2 mm. Such distances have proven in practice to be a favorable compromise between material and manufacturing costs and the achievable fixing and insulating effect.

[0027] In a further development of the hollow chamber profile according to the invention, it can also be provided that projections extending from different channel side walls are offset longitudinally along the channel's longitudinal axis or arranged at the same height. This allows, in particular, the achievable fixing or insulating effect to be easily adapted to the respective requirements.

[0028] Furthermore, in a further 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 relative to the respective channel side walls, which angle is preferably either 90° or deviates from 90° and is then preferably between 30° and 60°, most preferably approximately 45°, with projections preferably arranged at the same height having the same angle. Tests by the applicant have shown that, in particular, inclined projections (angles other than 90°) can provide an optimal fixing effect when interacting with a fastening means.

[0029] Alternatively or additionally, in a further development of the hollow chamber profile according to the invention, it can be provided that at least the first projection in one fastening direction (that is, the direction in which a fastening means is introduced into the fastening channel, usually a direction coinciding with the channel's longitudinal axis) is oriented at an angle opposite to the fastening direction, and that this first projection is preferably arranged closer to a side of the hollow chamber profile facing away from, or to be facing away from, the external component than to a side of the hollow chamber profile facing or to be facing the external component. The applicant has recognized that particularly stable connections can be achieved specifically through such configurations.

[0030] In another embodiment of the hollow chamber profile according to the invention, the wall thickness of the channel side walls can vary along the channel's longitudinal axis, in particular being increased in an area adjacent to at least one of the outer walls, preferably on a side of the hollow chamber profile facing away from or to be facing away from the external component. This allows the stability of the fastening channel to be specifically influenced, in particular by providing a greater wall thickness, without excessively increasing the required material and manufacturing costs.

[0031] In another refinement of the hollow chamber profile according to the invention, it can also be provided that at least one of the lateral support webs, together with one of the outer walls, forms an additional fastening channel in the extrusion direction. For this purpose, said one lateral support web can be connected to said outer wall (during extrusion), so that said one lateral support web and said outer wall together form a closed channel (in a plane transverse to the extrusion direction), which can advantageously be used as an additional fastening channel for introducing a suitable fastening means, e.g., a screw, in the extrusion direction. This further increases the versatility of the hollow chamber profile.

[0032] This can advantageously be achieved with appropriate structural refinement by having at least one of the lateral support webs curved in cross-section and extending from one outer wall to the relevant channel side wall. Such a design also increases the stability of the overall arrangement.

[0033] In yet another refinement of the hollow chamber profile according to the invention, at least one of the lateral support webs can also be straight and extend from a respective channel side wall to a chamber wall within the hollow chamber profile, preferably perpendicular to the channel's longitudinal axis. Such a configuration can also increase the stability of the overall arrangement and also creates additional hollow chambers within the hollow chamber profile, which prevents convection and improves the thermal insulation effect.

[0034] In yet another development of the hollow chamber profile according to the invention, at least one channel side wall can have at least one projection on its outer side facing away from the fastening channel. Such projections further increase the stability of the respective channel side wall with minimal material and manufacturing expenditure.

[0035] In yet another embodiment of the hollow chamber profile according to the invention, at least one of the channel side walls can be curved toward the interior of the fastening channel, preferably both, most preferably symmetrically with respect to the channel's longitudinal axis. This allows a type of prestress to be achieved with respect to the insertion of the fastening means, which specifically counteracts or compensates for a disadvantageous excessive widening of the fastening channel.

[0036] To further improve the thermal properties, in a further development of the hollow chamber profile according to the invention, the fastening channel can be 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. Such a filling is easy to accomplish according to the invention due to the lack of intermediate webs and can be accomplished in a single step. The filling material, in particular, effectively prevents congealing and corresponding heat losses. Furthermore, it can have a mechanically stabilizing effect.

[0037] A particularly preferred development of the system according to the invention provides for the fastening means to be designed as a screw. This allows for simple and detachable fastening. However, the invention is by no means limited to screws as fastening means. Profiled bolts, pins, or other mechanical fastening means are also possible.

[0038] Another, particularly preferred development of the system according to the invention provides for the fastening means to be passed through the outer walls of the hollow chamber profile that close the fastening channel. This provides additional stability and connection security.

[0039] Yet another, equally particularly preferred development of the system according to the invention provides that the fastening means has an effective outer diameter that is larger than the clear inner diameter of the fastening channel. This allows the fastening means, with its edge-side profile, to engage or "dig into" the channel side walls, which, due to their inventive external support, cannot or can only slightly retreat.

[0040] Furthermore, another, likewise particularly preferred, development of the system according to the invention provides for the use of at least two fastening means, one of which is inserted lengthwise and the other transversely to the orientation of the fastening channel. Thus, various external components can be connected to the hollow chamber profile in different ways at the same time.

[0041] Both fastening means can be designed as described above for the fastening means.

[0042] Finally, a further development of the sash frame according to the invention provides that, in addition to the aforementioned connecting element, it also has at least one fastening means, which is inserted into the fastening channel longitudinally or transversely to the orientation of the latter. This provides maximum flexibility when replacing the sash frame according to the invention.

[0043] The fastening means may be designed as described in detail above.

[0044] Further features and advantages of the invention will become apparent from the following description of exemplary embodiments with reference to the drawings. Figure 1 a system according to the invention in cross section; Figure 2 the hollow chamber profile made of Figure 1 without the external component or fastener; Figure 3the hollow chamber profile made of Figure 1 with another external component and an alternatively arranged fastening means; Figure 4 in four partial figures a) to d) possible designs of the fastening channel; and Figure 5 a section through a frame for a door or window.

[0045] The Figure 1shows a system according to the invention in cross-section. The system comprises an extruded window or door hollow chamber profile 1 and a fastening means 2 profiled on the edge in the form of a screw with a threaded portion 2a and a screw head 2b. In the threaded portion 2a, the screw 2 has an effective outer diameter D a. The fastening means or the screw 2 serves to connect the hollow chamber profile 1 to an external component 3, here a reveal or another building part, in the region of a drilled hole 3a formed there. For this purpose, the hollow chamber profile 1 has a fastening area 4 in which a fastening channel 5 is arranged. In the cross-section shown, the fastening channel 5 is oriented transversely to an extrusion (longitudinal) direction 6 of the hollow chamber profile 1 and has an uninterrupted, continuous course along a channel longitudinal axis 7 (dash-dotted line).As the person skilled in the art will easily see, the fastening channel 5 is also continuous in the extrusion direction 6 of the hollow chamber profile 1, which will be discussed in more detail below.

[0046] The fastening channel 5 is delimited laterally (right and left) by channel side walls 5a, 5b and closed perpendicular to the channel's longitudinal axis 7 by an outer wall 1a, 1b of the hollow chamber profile 1. In a finished assembled state of the hollow chamber profile 1, the outer wall 1a faces a movable sash frame (not shown), while the outer wall 1b faces the reveal 3, as shown. In the finished assembled state, the screw head 2b preferably rests against the outer wall 1a of the hollow chamber profile 1. The channel side walls 5a, 5b are arranged at a (constant) distance D i from one another, thereby defining a clear inner diameter Di of the fastening channel 5. The clear inner diameter D i of the fastening channel 5 is smaller than the outer diameter Da of the fastening means 2, so that the latter engages with its profiled edge area (thread) into the channel side walls 5a, 5b. On the channel side walls 5a, 5b, ieWithin the fastening channel 5, a series of projections or knobs 5c, 5c' are arranged in pairs, with one projection 5c, 5c' per pair protruding from one channel side wall 5a and another projection 5c, 5c' protruding from the other channel side wall 5b. The projections 5c, 5c' of each pair are located opposite one another at the same height along the channel's longitudinal axis 7; the projections 5c, 5c' are oriented obliquely with respect to the respective channel side wall 5a, 5b. If reference numeral 8 designates a fastening direction (screwing direction of the screw 2), then the first projection 5c' in the fastening direction is oriented inclined opposite the fastening direction 8, while the remaining projections 5c are oriented inclined in the fastening direction 8 - preferably each at an angle of approximately 45° with respect to the channel side wall 5a, 5b.The projections 5c, 5c' reduce the clear inner diameter D i of the fastening channel 5 in places, preferably to values ​​of approximately 2 mm, so that on the one hand the fastening means 2 with its profiled edge region (thread) also engages in the projections 5c, 5c' and on the other hand convection within the fastening channel 5 is effectively prevented.

[0047] At reference numeral 9, the outer wall 1b has a thickening or accumulation of material on an inner side facing the fastening channel 5; the same applies to the outer wall 1a at reference numeral 10. Reference numeral 11 denotes (material) projections on an outer side, i.e., a side of the channel side wall 5a facing away from the fastening channel 5. A groove 12 is formed in the outer wall 1a on an outer side facing away from the fastening channel 5, the position of which coincides with an (imaginary) penetration point of the channel longitudinal axis 7 or of the fastening means 2 through the outer wall 1a.

[0048] The channel side walls 5a, 5b are supported outwardly, i.e., on their (outer) side facing away from the fastening channel 5, by a number of support webs 13a-13d within the hollow chamber profile 1, whereby - without limitation - three of the support webs 13a-13c are allocated to the channel side wall 5b and one support web 13d is allocated to the channel side wall 5a. The support webs 13c and 13d are curved in cross-section and extend from the respective channel side wall 5a, 5b directly to the adjacent outer wall 1a or 1b. In contrast, the support webs 13a, 13b extend straight-perpendicularly away from the channel side wall 5b and meet a chamber partition wall 14 within the hollow chamber profile 1, which in turn extends from the outer wall 1a to the outer wall 1b.Within the scope of the invention, the support webs 13a-13d serve to prevent excessive widening of the fastening channel 5 when screwing in the fastening means 2, without disadvantageous thermal bridges being present within the fastening channel 5.

[0049] The Figure 2 shows the same hollow chamber profile 1 as Figure 1 , but without the external component or fastening device. The same reference numerals here and elsewhere denote identical or at least equivalent elements.

[0050] According to the presentation in Figure 2 the support web 13c forms between itself and the outer wall 1b of the hollow chamber profile 1 a further fastening channel 15 running in the extrusion longitudinal direction 6 of the hollow chamber profile 1, which can be used to connect an external component (not shown) to the hollow chamber profile 1, in particular in a free end region of the hollow chamber profile 1.

[0051] Clearly visible in Figure 2 an increase in the wall thickness of the channel side walls 5a, 5b in the upper region of the fastening channel 5 at reference numeral 16, i.e., adjacent to the outer wall 1a. There, a clear cross-section of the fastening channel 5 is tapered evenly on both sides.

[0052] The Figure 3 shows again the same hollow chamber profile 1 as Figure 1, but with a different external component 3' or an alternatively arranged, edge-profiled fastening means 2' (shown only schematically as a dashed line). The external component 3' is arranged laterally on an end face 1c of the hollow chamber profile 1 and is connected to the hollow chamber profile 1 via the fastening means 2', e.g. a screw. The fastening means 2' extends transversely to the channel longitudinal axis 7 into the area of ​​the fastening channel 5 and through it, so that preferably both channel side walls 5a, 5b are penetrated by the fastening means 2' and serve to fix the fastening means 2'.

[0053] The Figure 4 shows in four partial figures a) to d) possible designs of the fastening channel 5 between the outer wall 1a and the outer wall 1b, as they are in the hollow chamber profile 1 according to the Figures 1 to 3can be used. The channel side walls 5a, 5b are supported by modified support webs 13, all of which are designed similarly to the support web 13c shown in Figures 1 to 3.

[0054] In partial figure a), the projections 5c are arranged at an angle of approximately 90° relative to the channel side walls 5a, 5b. Two projections extending from different channel side walls 5a, 5b are located exactly opposite each other, i.e., at the same height. Their free ends have a clear distance A1 of preferably no more than 2 mm transverse to the channel's longitudinal axis 7, effectively creating spaces 17 within the fastening channel 5 that are de facto separated from each other, as already mentioned above.

[0055] In partial figure b), the projections 5c are arranged at an angle of approximately 90° relative to the channel side walls 5a, 5b. Projections grouped in pairs or adjacent to each other, which extend from different channel side walls 5a, 5b, are offset from one another in the direction of the channel's longitudinal axis 7, i.e., at different heights. Their free ends can overlap in projection along the channel's longitudinal axis 7 or end exactly at the channel's longitudinal axis 7, but have a clearance A2 of preferably no more than 2 mm in the direction of the channel's longitudinal axis 7.

[0056] In partial figure c), the projections 5c are also arranged at an angle of approximately 90° relative to the channel side walls 5a, 5b. Neighboring projections in the direction of the channel's longitudinal axis 7 extend alternately from different channel side walls 5a, 5b. Their free ends overlap in projection along the channel's longitudinal axis 7 and, transverse to the channel's longitudinal axis 7, have a clearance A3 from the respective opposite channel side wall 5a, 5b of preferably no more than 2 mm.

[0057] In all partial figures a) to c), the projections 5c are spaced apart in the direction of the channel longitudinal axis 7 at a distance of more than 2 mm.

[0058] In partial figure d), the fastening channel 5 is completely filled, i.e., from the outer wall 1a to the outer wall 1b, with a filler 18 (insulating foam, injection mortar, or the like). This can be done, in particular, before inserting the fastening material (not shown here).

[0059] The design according to partial figure d) with regard to the filler 18 can be easily combined in particular with the designs according to partial figures a) to c).

[0060] Finally, the Figure 5 a section through a frame 19 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 1 to 4). The hollow chamber profile sections 1.1-1.4 are connected to one another in pairs in connecting regions 20, preferably by welding. In the frame 19 shown, in each of the connecting regions 20, a preferably metallic connecting element 21 in the form of an L-shaped connecting angle with its two legs 22 (designated only for one connecting element 21) is introduced into two interconnected hollow chamber profile sections 1.1-1.4 in the region of the respective fastening channel 5 (dash-dotted line). It can be held therein in a clamping-positive manner or in some other way (e.g., by a material fit) in order to reinforce the connecting regions 20. This embodiment is not restricted with regard to the type and number of connecting elements 21.

[0061] The frame 19 can be connected to external components via the hollow chamber profile sections 1.1-1.4 in the manner described, e.g. with a reveal 3 surrounding or receiving the frame (not shown here, cf. Figure 1 ).

Claims

1. Extruded window or door hollow section profile (1), with at least one fastening region (4) for fastening the hollow section profile (1) to or for connecting the hollow section profile (1) to an external component (3, 3'), which fastening region (4) is designed and provided to accommodate a fastening means (2) with a profiled edge, which hollow section profile (1) has at least one fastening channel (5) in the fastening region (4), which is oriented perpendicular to a longitudinal extrusion direction (6) of the hollow section profile (1), which fastening channel (5) has a longitudinal channel axis (7) and is delimited laterally parallel to the longitudinal channel axis (7) by channel side walls (5a, 5b), wherein each of the channel side walls (5a, 5b) is supported on its outer side facing away from the fastening channel (8) by at least one support web (13; 13a-13d) within the hollow section profile (1), characterized in that the fastening channel (5) is closed at its ends perpendicular to the longitudinal channel axis (7) in each case by an outer wall (1a, 1b) of the hollow section profile (1) and is formed continuously without interruptions between the two outer walls (1a, 1b).

2. Hollow section profile (1) according to claim 1, in which a material accumulation (9, 10) or a thickening of the relevant outer wall (1a, 1b) is provided within the fastening channel (5) on at least one of the two outer walls (1a, 1b).

3. Hollow section profile (1) according to claim 1 or 2, in which the channel side walls (5a, 5b) have projections (5c, 5c') on their inner side wall delimiting the fastening channel (5).

4. Hollow section profile (1) according to claim 3, in which a clear maximum distance (A1) is provided between projections (5c), which extend from different channel side walls (5a, 5b), in a transverse direction across the longitudinal channel axis (7), which clear maximum distance (A1) preferably does not exceed 2 mm; and / or in which a maximum distance (A2) is provided between two adjacent projections (5c) in a longitudinal direction along the longitudinal channel axis (7), which maximum distance (A1) is preferably 2 mm or less; and / or in which a maximum distance (A3) of preferably 2 mm or less is provided between a projection (5c) and a channel side wall (5a, 5b) opposite the projection (5c).

5. Hollow section profile (1) according to claim 3 or 4, in which projections (5c, 5c') extending from different channel side walls (5a, 5b) are arranged offset or at the same height in the longitudinal direction along the longitudinal channel axis (7).

6. Hollow section profile (1) according to any one of claims 4 to 5, in which at least some of the projections (5c, 5c') extend at an angle relative to the relevant channel side walls (5a, 5b), which angle is preferably either 90° or differs from 90° and is preferably between 30° and 60°, most preferably 45°, wherein projections (5c, 5c') arranged at the same height according to claim 5 preferably have the same angle.

7. Hollow section profile (1) according to any one of claims 3 to 5, in which at least the first projection (5c') in a fastening direction (8) is oriented inclined counter to the fastening direction (8).

8. Hollow section profile (1) according to any one of claims 1 to 7, in which a wall thickness of the channel side walls (5a, 5b) varies over the longitudinal channel axis (7), in particular is enlarged in a region (16) adjacent to at least one of the outer walls (1a).

9. Hollow section profile (1) according to any one of claims 1 to 8, in which at least one of the lateral support webs (13; 13c), together with one of the outer walls (1a, 1b), forms an additional fastening channel (15) in the extrusion direction (6).

10. Hollow section profile (1) according to any one of claims 1 to 9, in which at least one of the lateral support webs (13; 13c, 13d) is curved in cross section and extends from the one outer wall (1a, 1b) to the relevant channel side wall (5a, 5b).

11. Hollow section profile (1) according to any one of claims 1 to 10, in which at least one of the lateral support webs (13a, 13b) is straight and extends from a relevant channel side wall (5b) to a section wall (14) within the hollow section profile (1), preferably perpendicular to the longitudinal channel axis (7).

12. Hollow section profile (1) according to any one of claims 1 to 11, in which the fastening channel (5) is filled at least partially with a solid or paste-like material (18), preferably with a thermally-effective insulation material and / or a fastening material, in particular an insulating foam or injection mortar.

13. System comprising an extruded window or door hollow section profile (1) according to any one of the preceding claims and at least one fastening means (2, 2') with a profiled edge, preferably a screw, in which the fastening means (2) is introduced in the fastening channel (5) along the longitudinal channel axis (7), wherein the external component (3) must be arranged in extension of the longitudinal channel axis (7), and / or in which the fastening means (2') is introduced in the fastening channel (5) across the longitudinal channel axis (7), wherein the external component (3') must be arranged laterally spaced apart from the longitudinal channel axis (7) in the region of an end face (1c) of the hollow section profile (1) that differs from the two outer walls (1a, 1b).

14. System according to claim 13, in which the channel side walls (5a, 5b) are arranged at a distance (Di) from one another, whereby a clear inner diameter (Di) of the fastening channel (5) is defined, which clear inner diameter (Di) of the fastening channel (5) is smaller than an outer diameter (Da) of the fastening means (2), such that it engages in the channel side walls (5a, 5b) with its profiled edge region.

15. Frame (19) for a door or a window, which is formed from a plurality of sections (1.1-1.4) of hollow section profiles (1) connected, preferably welded, to one another in connecting regions (20), according to any one of claims 1 to 13, in which a preferably metallic connecting element (21), preferably a connecting angle, is introduced in two interconnected hollow section profile sections (1.1-1.4) in the region of the respective fastening channel (5) in at least one of the connecting regions (20).