EP1644605B1 - Composite profile with insulation web, in particular for windows doors and facades - Google Patents

Abstract

The invention relates to a composite profile, in particular for doors, windows, or facades, made from at least one or more metal profile(s) (1, 2) and at least two insulation webs (3), whereby the at least one metal profile (1, 2) and the insulation webs (3) are positively connected to each other, such that the adjacent flange sections (4) on both insulation webs (3a, b), or on the one insulation web (3a, b) engage in adjacent locating grooves (5) on the metal profile (1, 2). The above is characterised in that a separation wall (11), between both adjacent locating grooves (4), extends, at the end thereof away from the groove base (12), beyond the free end of the formed webs (10a, b) and comprises a shoulder (13, 13', 13 ) at that point which secures both adjacent flange sections (4) to the metal profiles with a positive fit.

Description

The invention relates to a composite profile according to the preamble of claim 1.

There are heat-insulated composite profiles - as well as this applicant - known, in which an inner and an outer metal profile are connected to each other via two mutually parallel, poor thermal conductivity insulating plastic webs. Such a prior art of the Applicant is in FIG. 1 presented in this Anmnungs-Odung.

A generic state of the art each show the FR 2 783 861 , the DE 196 22 725 A1 and the DE 197 22 527 A1 ,

With regard to the requirements of statics and thermal insulation, these profiles have proven themselves. Particularly advantageous is the possibility to connect the composite profiles with each other via two insulating strips formed separately, since this offers the possibility to use relatively inexpensive insulating bars without complicated shape, which allow for sufficient spacing from each other, the realization of a very stable composite.

However, since the trend in window, door and facade construction to narrower profile views with the aim of the largest possible clear slices dimensions build composite profiles with two or more insulating bars often too wide, whereas composite profiles with only one insulating bar often have insufficient stability and strength.

In this respect, the solution of the Fig. 1 proven, in which the metal profiles are connected by means of two insulating webs, in teilprismatische - at least one side of the groove base tapered - grooves engage the metal profiles, with a schwalhenschwanzförmige partition between the insulating bars.

For reasons of stability, the insulating bars in the clamping area to the metal profiles require a minimum of wall thickness to accommodate the forces and stresses occurring in the use of such profiles.

The dovetailed partition between the grooves as well as the two Isolierstegbereiche in the grooves together with the two Metallanformstege the metal profiles together lead to a view width, which can not fall below a minimum due to the required strength, so that the reduction of the view width limits are set, the recapture fundamental geometry of the elements can not be fallen below.

It has been tried, even composite profiles with only a single Mehrkammerisolierprofil that connects the outer metal profiles together to give sufficient strength. Such attempts are for example from the EP 0 838 571 A1 known, which describes a composite in which engages the inherently rigid insulating profile with two thin side walls in a prismatic receiving the metal profiles and a partition wall in the groove bottom of this prism-shaped receptacle in a slot of the divided foot section finds place whose walls are preferably parallel to each other , The goal should be to reduce the shrinkage behavior of the insulating strip under heat load, eg by surface treatment of the composite profiles, by reducing the material in the clamping area on the aluminum profiles. However, the composite realized here entails the problem that the retatively complicated insulating profile is expensive to produce, difficult to assemble and designed in such a way that the positive-locking undercuts on the metal profiles are still relatively wide in order to provide the necessary stability for the connection achieve.

Thus, there is still a need for a composite profile with at least one metal profile and at least one insulating bar, which in comparison to the prior art with high stability builds in particular extremely narrow.

The solution to this problem is the object of the invention.

The invention solves this problem by the subject matter of claim 1.

Advantageous embodiments of the invention are specified in the subclaims.

Unlike in the prior art, in this case an approach is formed on the partition, which is plate-shaped or web-shaped with parallel walls between the two grooves, which deviates from the shape of the partition to the approach in such a way that it form-fitting both adjacent foot areas secured to the metal profiles.

Since this positive connection is displaced perpendicular to the groove bottom outside of the form-fitting region of the Anformstage to the insulating bars, it is surprisingly possible, the view width of the composite profile or the maximum outer spacing of the two insulating bars and thus the corresponding face width of the composite profile - to significantly reduce and yet a stable To create a network. The Isolierstege require correspondingly only a minimal material requirement, which additionally reduces the cost.

Especially an embodiment with two separate insulating bars is particularly preferred because it combines the advantages of lower costs and better tolerance compensation with the alleged advantage of a one-piece bar - the narrower width - surprisingly together, while still an even narrower face width realized than this by the state the technology was considered feasible even with one-piece insulating profiles.

In this case, the approach is relative to the groove bottom of the grooves behind the free ends of the Anformstege. A distance is particularly advantageous here because it minimizes the width of the view particularly clearly.

However, the approach can also begin relative to the groove bottom of the grooves in the plane of the free end of the Anformstege and forms in this respect constitute the limiting case of the invention.

It makes sense to form the approach strip-shaped, in particular to achieve consistent fit over the entire length of the profile.

According to another variant, the approach can also be formed only partially to the partition wall, that is, it can be provided punches, which increase the shear strength again.

Particularly preferably, the approach has a triangular, round or rectangular cross-section and engages in a correspondingly shaped chamber between the two insulating webs or a, so as to ensure a particularly effective fit.

Preferably, the thickness of the partition before the approach 0.4 to 1.2 mm. In addition, the thickness of the attachment is preferably in the range of maximum thickness more than 1.2 mm to ensure a sufficient form-fitting and to minimize the viewing width particularly clearly.

It is particularly advantageous if the partition with the Anformstegen by at least 50% longer extension perpendicular to the groove bottom than the Anformstege to ensure a sufficient distance of the lugs to the ends of the Anformstege.

According to a further preferred embodiment, the foot portions are arranged laterally offset from a central portion and the foot portions are each connected via an acute angle to the foot sections and the central portion aligned connecting portion with the central portion. It is possible and advantageous if at least the foot portion and the connecting portion have the same thickness in order to realize a particularly narrow view width. The foot must therefore be quasi non-broadened compared to the other insulating web strength and can even be formed in the area projecting into the receiving groove almost rectangular.

According to an advantageous embodiment set the approaches to the partition wall relative to the groove base by more than 1 mm to this remotely than the Anformstege ends.

Advantageously, the partition is loaded in the assembly position exclusively on train through the widening approach.

It is also expedient if the Anformstege, the partition and the insulating bars are coordinated such that the foot sections are pressed in the direction of the partition and its widening approach, which in turn ensures by its shape that the insulating bars in the groove bottom of the grooves for Plant come.

It is also conceivable that the two insulating webs are joined together via at least one locking receptacle and a corresponding detent spring to form a mounting unit. This offers particular handling and storage benefits without losing the benefits of the two-piece design.

Preferably, the two insulating webs are formed separately from each other and not materially connected to each other.

Alternatively, however, the two insulating webs can also be connected to one another in their middle section in a material-locking manner, in particular via at least one or more film-like material webs, wherein the webs of material preferably have a thickness of 0.3-1.5 mm. This latter, although expensive embodiment thus uses the advantages of the invention, the variant is preferred with not form-fitting connected Isolierstegen because it builds as narrow as the variant with material connection and other advantages such as a lower tolerance sensitivity and preventing problems during assembly by mere Maßüberschneidungen when inserting, but what is avoided again with sufficiently thin and / or flexible material webs, for example, if the material webs are like a film. This embodiment also offers handling and storage advantages, without losing the benefits of a design without material due to the relatively flexible material webs.

Finally, the two insulating webs can be connected and formed as cohesive Isolierprofilteil particular a wing of a block window, which has at least one receiving groove for fixing a glass retaining strip for a disc or a chamber for corner connectors.

• Fig. 1 ein Verbundprofil aus zwei Metallprofilen und zwei Isolierstegen nach dem Stand der Technik;
• Fig. 2 einen Schnitt durch ein erstes erfindungsgemäßes Verbundprofil aus zwei Metallprofilen und zwei Isolierstegen;
• Fig. 3 einen Schnitt durch ein zweites erfindungsgemäßes Verbundprofil aus zwei Metallprofilen und zwei Isolierstegen;
• Fig. 4 einen Schnitt durch ein drittes erfmdungsgemäßes Verbundprofil aus zwei Metallprofilen und einem Isoliersteg;
• Fig. 5 einen Schnitt durch ein viertes erfindungsgemäßes Verbundprofil, wiederum aus zwei Metallprofilen und zwei Isolierstegen;
• Fig. 6 einen Schnitt durch ein fünftes erfindungsgemäßes Verbundprofil aus einem Metallprofilen und einem Kunststoff- und Isolierstegprofil; und
• Fig. 7 eine Ausschnittsvergrößerung aus Fig. 6.

The invention will be described in more detail with reference to the drawing. It shows:

• Fig. 1 a composite profile of two metal profiles and two insulating bars according to the prior art;
• Fig. 2 a section through a first inventive composite profile of two metal profiles and two insulating bars;
• Fig. 3 a section through a second inventive composite profile of two metal profiles and two insulating bars;
• Fig. 4 a section through a third erfmdungsgemes composite profile of two metal profiles and an insulating web;
• Fig. 5 a section through a fourth composite profile according to the invention, again from two metal profiles and two insulating bars;
• Fig. 6 a section through a fifth inventive composite profile of a metal profiles and a plastic and insulating web profile; and
• Fig. 7 an excerpt from Fig. 6 ,

The FIG. 2 shows a first composite profile of two metal profiles 1 and 2, for example, consist of a light metal alloy, which form in the installed state, for example, portions of an inner and outer profile of a window or door leaf and to which during assembly of the window or door preferably further functional elements such as seals , a glass retaining strip or the like. Can be attached.

The two metal profiles 1, 2 are positively connected to one another in their mutually facing region with two insulating webs 3a, 3b, which are aligned parallel to one another here, of a material which is poorer in heat conduction relative to the material of the metal profiles 1, 2.

The insulating bars 3a, 3b point to this Fig. 1 At their two opposite and facing the metal profiles 1, 2 end portions each foot sections 4, which engage in correspondingly shaped adjacent grooves 5a, b of the metal profiles 1, 2. The insulating bars 3a, 3b are here - which is preferred becomes - in itself no hollow chamber, without this could be excluded in principle. It widens but i.allg. again the view.

The two foot sections 4 are each slightly laterally offset in the direction of the adjacent insulating web 3a and 3b to a central section 6 connecting them. The foot sections 4 are each connected via an acute-angled section to the foot section 4 and to the central section 6 connecting section 7 with the central section. 6 connected.

To secure a particular perpendicular to the image plane of Fig. 2 shear-resistant composite can be used in a groove 8 of the foot sections 4 each have a knurled wire 9 or other shear-resistant composite securing element.

The foot sections 4 are anchored in the receiving grooves 5 by molding - in particular rolling - each of an outer Anformsteg 10a, b, which extends perpendicular to the groove base 12, positively and non-positively in the receiving grooves 5. Between the ends of the central portions 6 and the Anformstegen 10 a, b seals 28 are arranged here, which each engage in a sealing groove 29 at the connecting portions 7 and held there. They serve for orientation and installation of the insulating bars 3 on the bar 13 and for sealing the gaps in the finished composite.

In the middle between the two foot sections 4 adjacent insulating webs 3 a, b which are arranged symmetrically to a between the insulating webs 3 a, b extending center plane M, a partition 11 is formed in each case on the groove bottom 12, which is perpendicular to the groove bottom 12 via the free End of the Anformstege 10a, b also extends and in which over the free end of the Anformstege 10a, b addition extending range by means of a positive connection with the insulating bars 3a, b this on the metal profiles 1, 2 secures.

To Fig. 2 the positive connection is realized by a with respect to the partition 11 continuously widening approach 13, which has a widening from the end of the partition cross-section and between the angularly aligned connecting portions 7 of mutually adjacent insulating webs 3a, 3b, between which here is also from the Groove from widening space 30 is formed.

In this arrangement, the foot portions 4 of the insulating bars 3a, 3b are secured by the interaction of the two outer Anformstege 10a, b with the respective projection 13 on the associated partition wall 11 positively. In the region of the extent of the Anformstege 10 a, b, the foot portions 4 are each configured substantially at right angles, wherein the Anformstege have projections 32 to improve the positive engagement, which press in the rolled-up state in the foot sections 4

The partition wall 11 for separating the directly juxtaposed receiving grooves 5a, 5a of the metal profiles 1, 2 for receiving the insulating webs 3a, b protrudes so far beyond the grooves 5a, 5b or beyond the free ends of the Anformstege 10 that in the field of positive engagement between the insulating webs 3a, 3b and the metal profile 1, 2 by the approach 13 each sufficient material to the insulating bars 3a, b is available to ensure the required stability of the insulating bars 3a, b and the stability of the composite with the metal profiles 1, 2 without dimensioning the insulating ribs 3a, b larger, which would inevitably lead to a wider composite.

In this case, the partition wall 11 itself can be made relatively thin, since it does not serve for lateral stabilization, ie not on bending, but only on train through the widening approach 13 is charged. The partition wall 11 is securely supported and held between the two insulating bars.

The partition 11 should even be made as thin as possible to adapt starting from the connection to the metal profiles 1 or 2 by bending deformation tolerances of the insulating strips in the connection area, so that only the widening, strip-like projection 13 evenly with the insulating bars 3a, b cooperates.

By molding the Anformstege 10 a, b to the insulating bars 3 a, b, the insulating bars 3 a, 3 b pressed against the partition wall 11 and its widening approach 13, which in turn ensures by its shape that the insulating bars 3 a, b also in the groove bottom 12 of the grooves 5 come to rest.

The area between the insulating webs may be formed by means of an insulating layer 31 in addition thermally insulated.

To FIG. 3 the insulating webs 3a, b are each mutually provided with a side facing here to the other insulating web in particular in the middle section 6 with a web-like locking receptacle 14 and a web-like detent spring 15 so that the simple possibility exists, these two insulating webs 3a, b to form a structural unit to connect with each other by means of the locking connection. On the one hand, this still offers the advantage of easy manufacturability of the individual insulating webs 3a, 3b, but on the other hand, the advantages of a one-piece solution in storage and assembly with the metal profiles.

The FIG. 4 shows a further variant in which the two insulating bars 3a, b different than in Fig. 2 and 3 are cohesively connected to each other, wherein the two insulating webs 3a, respectively in its central portion 6 via two parallel and perpendicular to the web portions aligned material webs 16, 17 are interconnected. This material webs 16, 17 should be formed as possible film-like and have a thickness of 0.3 -1.5 mm.

The material webs 16, 17 serve to form a chamber for reducing the Konvek tion within the range between the web portions 3a and 3b and are preferably designed to be movable so that they the production of the bond between the web sections 3a, 3b, which by tolerances of the metal profiles 1, 2 and the web portions 3a, b is superimposed, not hinder.

The FIG. 5 shows an alternative to FIG. 2 in which the strip-like projection 13 'has no triangular cross-section but a round cross section, so that the strip shape is cylindrical. The approach may also have a different shape, such as an approximate rectangular shape as in Fig. 5 second approach 13 "or a differently shaped cross-sectional geometry, wherein the cross section of the chamber 30 and thus the insulating bars 3a, b is adapted to this geometry.

FIG. 6 shows the section of a window 20 in block construction, in which the frame stop 21 completely covers the wing 22 from the outside. The wing 22 with the metal profile 1 has a narrow face width, wherein the outside wing profile and here also Isolierprofilteil 23 engages with two webs 3a ', 3b' in the same receiving contour, as the two separate insulating webs 3a, b according to FIG. 2 , The Isolierstegprofil 23 serves here on the one hand insulating and takes over more functions. Thus, it has a rectangular chamber 24 which serves to receive a corner connector for stabilizing the Isolierprofilteils (not shown here). In addition, the Isolierprofilteil 23 has a receiving groove 25 for fixing a Glashalteleiste 26 for a disc 27th

There are also other than wing profiles conceivable in which the composite profile consists only of a metal and a KS profile (not shown here).

How out FIG. 7 can be seen, has the wing profile 1 similar to Fig. 2 or 3 on one of its sides two foot sections 4a, b, which engage in largely rectangular grooves 4 of the metal profile 1. Again, in the groove base 12 a Partition wall 11 is provided at the end of the mold-closing projection 13 is located.

With regard to the partition 11 is still to point out that even this wall - as already indicated above - can be made extremely thin-walled, which benefits the one face width of the composite profile, but on the other hand by its mobility tolerances compensating. The thickness of the partition wall should preferably be in a range of 0.4 - 1.2 mm.

In summary, it should be emphasized that the receiving grooves 5, 5 for the adjacent insulating webs are each formed by the thin partition 11 which projects beyond the Anform- or Einspannstege 10a, b, wherein the partition wall 11 in particular facing away from it by the groove base on her Side subsequent approach 13 form fit the insulating bars 3a, b to the metal profiles 1, 2 secures. The length of the partition wall 11 should be such that a sufficient strip thickness over the entire course can be realized.

reference numeral

metal profiles

1, 2

insulating bars

3a, 3b

foot sections

4

receiving grooves

5

midsection

6

connecting sections

7

groove

8th

wire

9

Anformstege

10

partition wall

11

groove base

12

approach

13

latching receptacle

14

detent spring

15

material webs

16, 17

window

20

Frame stop

21

wing

22

Isolierprofilteil

23

chamber

24

receiving groove

25

Glazing bead

26

disc

27

seals

28

seal groove

29

free space

30

damp course

31

projections

32

Claims (18)

1. Composite profile, in particular for doors, windows or facades, comprising

   a) at least one or more metal profiles (1, 2) and at least two insulating webs (3a, b),

   b) wherein the at least one metal profile (1, 2) and the insulating webs (3a, b; 3a', 3b') are positively connected to one another in that in each case mutually adjacent foot portions (4) on the two insulating webs (3a, b) engage in mutually adjacent locating grooves (5) in the at least one metal profile (1, 2),

   c) wherein a separating wall (11) on the at least one metal profile (1, 2) is formed between the adjacent locating grooves (5), and

   d) wherein the foot portions (4), in each case on their sides facing away from the separating wall (11), are pressed onto the separating wall by means of integrally formed webs (10a, b), characterized in that

   e) the separating wall (11) between the two locating grooves (5) is formed in a plate- or web-shaped manner with parallel walls and extends between the two adjacent locating grooves (5) at its end facing away from the groove bottom (12) beyond the free end of the integrally formed webs (10a, b);
   and

   f) the separating wall (11) here has an attachment (13, 13', 13") which secures both adjacent foot regions (4) positively to the at least one metal profile (1, 2); and

   g) the attachment (13, 13', 13") starts relative to the groove bottom (12) of the locating grooves (5) behind the free end of the integrally formed webs (10a, b) or the attachment (13, 13', 13") starts relative to the groove bottom of the locating grooves in the plane of the free end of the integrally formed webs.
2. Composite profile according to Claim 1, characterized in that the attachment (13, 13', 13") is of strip-shaped design, in particular is designed as a continuous strip.
3. Composite profile according to Claim 1 or 2, characterized in that the attachment (13, 13', 13") is integrally formed on the separating wall (11) only in portions.
4. Composite profile according to one of the preceding claims, characterized in that the attachment (13, 13', 13") has a triangular, round or rectangular cross section and engages in a correspondingly formed chamber (30) between the two insulating webs (3a, b).
5. Composite profile according to one of the preceding claims, characterized in that the thickness of the separating wall (11) in front of the attachment (13, 13', 13") is 0.4 to 1.2 mm.
6. Composite profile according to one of the preceding claims, characterized in that the thickness of the attachment (13, 13', 13") is more than 1.2 mm.
7. Composite profile according to one of the preceding claims, characterized in that the separating wall (11) with the integrally formed webs has an extension perpendicular to the groove bottom (12) which is longer by at least 50% than the integrally formed webs (10a, b).
8. Composite profile according to one of the preceding claims, characterized in that the foot portions (4) are arranged laterally offset to a central portion (6), and in that the foot portions (4) are in each case connected to the central portion (6) via a connecting portion (7) oriented at an acute angle to the foot portions (4) and to the central portion (6).
9. Composite profile according to one of the preceding claims, characterized in that seals (28) are arranged between the two free ends of the central portions (6) of the insulating webs and the integrally formed webs (10a, b).
10. Composite profile according to one of the preceding claims, characterized in that the attachments (13, 13', 13") on the separating wall (11) start relative to the groove bottom at a distance therefrom of more than 1 mm than the integrally formed webs (10) terminate.
11. Composite profile according to one of the preceding claims, characterized in that the separating wall (11) in the mounting position is loaded exclusively in tension by the widening attachment (13, 13', 13").
12. Composite profile according to one of the preceding claims, characterized in that the integrally formed webs (10a, b), the separating wall (11) and the insulating webs (3a, 3b) are matched to one another in such a way that the foot portions are pressed in the direction of the separating wall (11) and its widening attachment (13, 13', 13") which, in turn, ensures through its configuration that the insulating webs (3a, b) come to bear in the groove bottom (12) of the locating grooves (5).
13. Composite profile according to one of the preceding claims, characterized in that an insulating layer (31) is arranged in the region between the insulating webs (3a, b).
14. Composite profile according to one of the preceding claims, characterized in that the insulating webs (3a, b) can be assembled to form a mounting unit via at least one latching receptacle (14) and a corresponding latching spring (15).
15. Composite profile according to one of the preceding claims, characterized in that the insulating webs (3a, b) are formed separately from one another and are not integrally bonded to one another.
16. Composite profile according to one of the preceding claims, characterized in that the insulating webs (3a, b) are integrally bonded to one another in their central portion (6) in particular via at least one or more in particular film-like material webs (16, 17).
17. Composite profile according to one of the preceding claims, characterized in that the material webs (16, 17) have a thickness of 0.3-1.5 mm.
18. Composite profile according to one of the preceding claims, characterized in that the insulating webs (3a', 3b') are integrally bonded to one another and designed as insulating profile part (23) in particular of a sash of a block window which comprises at least one locating groove (25) for fixing a glass-retaining strip (26) for a pane (27) or a chamber (24) for corner connectors.

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