EP1268968B1 - Composite profile and method for producing a composite profile - Google Patents

Abstract

The invention relates to a composite profile and to a method for the producing a composite profile. The profile is configured as an assembly with at least one metal profile and at least one insulating profile, wherein a tolerance-compensating gap is located between a metal profile and an insulating profile.

Description

The invention relates to a method according to the preamble of claim 1 and a thermally insulated composite profile according to the preamble of claim 4.

A composite profile - which has proven to be groundbreaking in terms of its insulating properties - is from the DE 25 52 700 known. The basic structure of the profile of this font corresponds to the adjacent Fig. 1 , It consists of a first and a second metal profile and two mutually parallel insulating profiles, which connect the metal profiles together. In receiving grooves of the metal profiles engaging foot portions of the insulating secure the insulating bars against falling out of the grooves, this backup effect is increased against falling out by a press fit of the insulating in the receiving groove, which is realized in that the outer or inner webs at the onset of the insulating be formed or pressed into the grooves on the insulating bars.

The production of the composite profile follows the following scheme. First, the metal profiles are aligned relative to each other against each other, that gegenüberstchen the Isolierprofilaufnahmenuten. In the grooves then the insulating profiles are inserted or inserted. The metal profiles are then aligned in a mounting device relative to each other and clamped against each other, the clamping forces acting on the outer surfaces. The composite is fixed in that webs are plastically angefonnt to the insulating profile.

The Anformung the webs can be done by means of a mounting device in which either the profile is moved through the device or the device is guided over the stationary profile for forming the webs.

The Bautiefenmaß or the overall depth of the generic composite profile is calculated as the sum of the consecutively connected Bautiefenmaße the individual elements first metal profile, insulating profile and second melall profile. Thus, according to the state of the art, a basic depth dimension results, which is superposed by the sum of the individual tolerances. A detailed description of the tolerance conditions of the profile of the Fig. 1 can be taken from the more detailed description of the figures.

The tolerances of the metal and plastic profiles can be produced due to - are essentially for the production of technically complex processes of extruding the metal profiles or extruding the plastic profiles (insulating profiles) selected - not restrict beyond minimum, which already at considerable additional costs in the production of Profiles leads. The addition of the tolerances of the individual components thus results in relatively large deviations, which in practice can add up to a total tolerance g = ± 0.7 mm. Then there are the already mentioned device tolerances, which can be very low anyway and even go almost to zero.

The thermally insulated composite profiles for windows, doors and facades are assembled into frame or transom / post constructions in which the profiles are mitred or butt-jointed. The large tolerances of the different profiles brought together cause different problems. Thus, the large tolerances may result in an unclean appearance. Due to the tolerances, however, sharp-edged profile sections can also be created which entail a potential for entanglement during operation or cleaning. The tolerances cause in addition to these effects and technical difficulties in the connector technology or in the mechanical processing of such profiles in terms of sawing and milling of fittings and accessories, and functional defects of the finished components (eg leaks, stiffness, etc.).

It is indeed from the generic EP 0 103 272 A also known to introduce an expanding foam in the space between a composite construction of two metal profiles and two parallel arranged between the metal profiles insulating profiles and to use this arrangement in a mounting device, the foam by its expansion drives the metal profiles apart until it rests in the mounting device, whereupon this position is fixed by rolling webs of the metal profiles on the insulating webs. The introduction of the foam for assembly thereby represents a complicating the production, as possible to save labor and causes unnecessary additional material costs. It is also not always possible to introduce a foam, so if there is no suitable space for introducing the foam between adjacent insulating profiles.

In view of this problem, the invention aims, starting from the generic state of the art, to reduce the overall tolerance of the composite profile with simple structural means.

The invention achieves this object or solves this object with regard to the composite profile by the subject-matter of claim 4 and with regard to the method by the subject-matter of claim 1.

In the method for producing the composite profile, the outer surfaces of the metal profiles are thus held by a mounting device on the specified dimension G. The position occupied by the insulating profiles in this state within the receiving grooves is - fixed and frozen - for example, in a simple manner by molding the webs in the position of a press fit. Thus, the total tolerance with respect to the nominal dimension G of the composite profile reaches a size which substantially corresponds to the device tolerance, although the individual tolerance of the metal and insulating profiles compared to the prior art need not be restricted, but can be increased, resulting in the simplification of Manufacturing process of individual profiles and significant cost reduction leads.

In this case, at least one spring element and / or an elastically compressible element is arranged and / or formed between the at least one metal profile and the at least one insulating profile, which is preferably formed integrally with or separately from the at least one metal profile and / or the at least one insulating profile. According to one embodiment, the elastically compressible element may also be arranged in the at least one gap and fill it in whole or in part. The spring element must be dimensioned such that it presses apart the insulating profile and the metal profile so that their outer sides rest against the mounting device or come to rest. The spring element can - as well as the elastically compressible element - fill the gap also partially or completely.

The invention is suitable for any composite profile in which at least one plastic and one metal profile - in particular of light metal such as aluminum or of an aluminum alloy, but also steel - are joined together to form a composite profile.

Fig. 1

ein wärmegedämmtes Verbundprofil nach dem Stand der Technik;

Fig. 2

ein erfindungsgemäßes wärmegedämmtes Verbundprofil;

Fig. 3-12

den Verbindungsbereich zwischen einem Metallprofil und einem Isolier- profil in verschiedenen Montagestadien (Fig. 2, 3, 4) und/oder nach wei- teren Ausführungsbeispielen der Erfindung (Fig. 5 - 12),

Fig. 13

ein weiteres erfindungsgemäßes wärmegedämmtes Verbundprotil; und

Fig. 14

ein weiteres erfindungsgemäßes wärmegedämmtes Verbundprofil aus einem Metallprofil und einem Isolierprofil mit einem direkt an dieses angeformten Außen- oder Innenprofil.

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

Fig. 1

a thermally insulated composite profile according to the prior art;

Fig. 2

a thermally insulated composite profile according to the invention;

Fig. 3-12

the connection area between a metal profile and an insulating profile in different assembly stages ( Fig. 2 . 3, 4 ) and / or according to further embodiments of the invention ( Fig. 5-12 )

Fig. 13

another thermally insulated composite protector according to the invention; and

Fig. 14

another inventive thermally insulated composite profile of a metal profile and an insulating profile with a molded directly to this outer or inner profile.

Fig. 1 shows a thermally insulated composite profile, which consists of a first metal profile 1, a second metal profile 2 and two mutually parallel insulating profiles 3a, 3b. To realize an insulating effect between the metal profiles 1, 2, at least one of the insulating profiles 3 is provided. The insulating profiles 3 have substantially an elongated web-like shape and each engage with their end portions 9 - called foot section - in Isolierprofilaufnahmenuten 4 (hereinafter referred grooves 4) a. The Isolierprofilaufnahmenuten each have a groove bottom 4 'and two substantially perpendicular to the groove bottom 4' and parallel to the insulating profiles 3 aligned outer webs 7a and a two grooves common inner web 7b on. The total of three webs 7 are aligned substantially parallel to each other, wherein the central web 7b at its sides facing Isolierprofilaufnahmenuten 4 an undercut 7 'is formed, in which a lateral, obliquely to the main extension direction of the insulating 3 aligned projection 3' engages. On the contact surface to the outer webs 7a, however, the Isolierprofilwandung is aligned in direct contact with the respective insulating web to this substantially parallel.

It should be noted that the foot portions 9 are formed offset laterally relative to the main extension plane of the insulating profiles between the two metal profiles 1, 2 slightly parallel to Hauptterstrekkungsebene so that a paragraph 3 "forms, which is substantially directly in the plane of extension of the web 7 of the receiving groove. 4 Compressive forces in the direction of the plane of extension of the insulating webs 3 are thus not derived directly via the end face of the webs 7 and the insulating profiles 3, but via their foot sections 9.

The foot sections 9 of the insulating secure the Isolierstege 3 so against a Falling out of the grooves 4, wherein this securing effect is increased against falling out by a press fit of the insulating strip 3 in the receiving groove 4, which is realized in that the outer webs 7 formed when inserting the insulating sections 3 in the grooves 4 to the insulating bars or be pressed. Alternatively (not shown here) instead of the outer webs and the inner webs can be designed formable.

The production of the insulating profile follows the following scheme. First, the metal profiles 1, 2 are aligned relative to each other against each other so that the Isolierprofilaufnahmenuten 4 face each other. In the grooves then the insulating profiles 3 are inserted or inserted. The metal profiles 1, 2 are then aligned in a mounting device relative to each other and braced against each other, wherein the clamping forces acting on the outer surfaces 5, 6. The composite is fixed by the fact that the outer webs 7a are plastically formed on the insulating profile.

The Anformung the webs 7 can be done by means of a mounting device, in which either the composite profile is moved through the device or the device is guided over the stationary profile for forming the webs 7.

The basic depth dimension or the overall depth G is calculated as the sum of the consecutively connected basic depth dimensions of the individual elements of the first metal profile 1 (basic dimension A), insulating profile 3 (basic dimension C) and second metal profile 2 (basic dimension B). It therefore applies: $$\mathrm{G}\mathrm{=}\mathrm{A}\mathrm{+}\mathrm{B}\mathrm{+}\mathrm{C}\mathrm{,}$$

wobei:

g:=

Gesamttoleranz des Verbundprofils in der Erstreckungsrichtung der drei hintereinander geschalteten Profile 1, 2, 3.

a:=

Einzeltoleranz des Profils 1;

b:=

Einzeltoleranz des Profils 2;

c:=

Einzeltoleranz des Profils 3

vt:=

Vorrichtungstoleranz der Montagevorrichtung.

The depth G of the profile is determined in this prior art in particular by the fact that the insulating profiles 3 rest with their foot end edges in the groove bottom 4 'of the grooves 4. This construction requires that also in the Practice inevitably occurring tolerances of the individual profiles 1, 2, 3 compared to their nominal size together with the tolerance of the mounting device to add a total tolerance. The following applies: $$\mathrm{G}\mathrm{=}\mathrm{a}\mathrm{+}\mathrm{b}\mathrm{+}\mathrm{c}\mathrm{+}\mathrm{vt}\mathrm{.}$$

in which:

g: =

Total tolerance of the composite profile in the extension direction of the three consecutively connected profiles 1, 2, 3.

a: =

Individual tolerance of the profile 1;

b: =

Individual tolerance of the profile 2;

c: =

Individual tolerance of the profile 3

vt: =

Device tolerance of the mounting device.

Thus, according to the state of the art, a basic depth G is obtained which is superimposed by the sum of the individual tolerances a, b, c, vt.

The device tolerance vt of the mounting device is relatively small compared to the individual tolerances of the insulating profiles 1, 2, 3. It therefore applies in approximation: $$\mathrm{G}\mathrm{\approx }\mathrm{a}\mathrm{+}\mathrm{b}\mathrm{+}\mathrm{c}\mathrm{,}$$

The individual tolerances a, b, c result in each case from the sum of the maximum positive tolerances + al, + b1, + c1 and the negative tolerances -a2, -b2, -c2. The same applies to the total tolerance g.

$$-\mathrm{g}2\mathrm{=}-\mathrm{a}2-\mathrm{b}2-\mathrm{c}2.$$

It therefore applies to the maximum positive deviation + g1 and the maximum negative deviation - g2 $$\mathrm{+}\mathrm{G}\mathrm{1}\mathrm{=}\mathrm{a}\mathrm{1}\mathrm{+}\mathrm{b}\mathrm{1}\mathrm{+}\mathrm{c}\mathrm{1}$$

$$-\mathrm{G}2\mathrm{=}-\mathrm{a}2-\mathrm{b}2-\mathrm{c}\mathrm{Second}$$

As already mentioned, + g1 and -g2 reach values of up to 0.7 mm.

Here the invention goes another, more advantageous way. Fig. 2 shows the composite region of a thermally insulated composite profile according to the invention, in which the Einzelbautiefenmaße A, B and G are coordinated so that between the respective insulating profile 8a, 8b and the groove bottom 4 'of the respective metal profile 1 or 2 in each case a gap S1, S2 with a measure s1, s2 remains. The total gap dimension s = s1 + s2 of the column S1 and S2 is between zero and the sum of the maximum negative individual tolerances -a2, -b2, -c2, depending on the tolerances of the individual components. The basic structure of the composite profile and the individual profiles 1, 2 and 8 need to be changed compared to the prior art substantially only in the area of the grooves 4 and preferably flows only in a change of insulating 8.

The maximum gap width results when all individual components reach the maximum minus tolerance, since the sum gap dimension s1 + s2 of the column S1 + S2 results from the sum of all positive and negative tolerances occurring in the specific case (sum of the tolerance fields).

In the event that the individual components are all in the maximum plus tolerance range, the sum of the gaps s1 and s2 of the column S1, S2 approaches zero. However, an additional (minimum) gap may also be provided here, which also results when all the plus tolerances have already been exhausted.

As a result, in this way, a total depth is established, which is independent of the individual component tolerances and is only influenced by device tolerances vt, ie, goes to zero, if the device tolerance negligible is small.

A prerequisite for carrying out the method is that the insulating profile 8, preferably the Isolierprofilfußabschnitt 9, relative to the metal profiles 1, 2 in Bautiefenrichtung G in each case by the amount of the way of half maximum negative total tolerance -g2 in the receiving groove 4 is movable.

This means that the Isolierprofilfußabschnitt 9 usually - because the overall tolerance is rarely on the positive overall tolerance - only comes to a parallel to the X-plane surface 10, 20 and / or 11 of the undercut 7 'to rest. In the region of the positive rear grip of Isolierprofilfußes 9, a corresponding gap 12 is provided.

The assembly of the composite profile according to the invention will be described below.

In the method for producing the composite profile, the mutually parallel outer surfaces 5 and 6 of the profiles 1 and 2 are to be held by a mounting device on the specified dimension G. In a mounting device with fixed profiles this can be done by clamping devices. The position taken then by the insulating profiles 8 within the grooves 4 is fixed by molding the webs 7 in the position of a press fit and frozen. Thus, the total tolerance G of the composite profile reaches a size which essentially corresponds to the device tolerance.

When passing a composite profile by a standing mounting device, it is necessary that the surfaces 5 and 6 of the metal profile shells 1 and 2 are pressed during the Anformvorganges the webs 7 to the guide rollers or guide surfaces of the device. This can for example in a simple manner by guide rollers which engage outer webs, or by an elastic spring element 13 (see Fig. 3 ) take place, for example, in the hollow chamber between the profile shells / metal profiles and the insulating strips / profiles is used for the composite process. This spring element 13 acts in the plane marked X and pushes the two metal profiles or profile shells 1 and 2 apart against the device boundaries V1, V2.

In the two methods described above, the insulating profiles 8 assume a random position in the receiving groove 4, which may result in two different gap dimensions s1, s2 on an insulating profile 8.

A compensation of the gaps s1, s2 of the opposite column S1, S2 by aligning the insulating profile 8 in a middle position between the metal profiles 1, 2 can be achieved by two spring elements 14a, 14b, each between the metal profile 1 and the insulating profile and between the metal profile 2 and the insulating profile 8 - here substantially between the end face of the web 7 and the shoulder 8 "of the insulating profile - In addition to the centering of the insulating relative to the two metal profiles 1, 2, the spring elements 14 take over the task the pressing apart of the two metal profiles 1, 2, so that they rest against the device boundary with their outer surfaces or outer edges 5, 6. A separate spring element 13 or other device means for driving apart the two metal profiles is therefore no longer necessary 8 thus replace the function of a spring ementes 13 or special holding devices for the metal profiles 1 and 2 on the mounting device and thus realize a particularly simple and advantageous solution of the invention.

The Fig. 3 shows the composite profile in not yet connected state. The Anformstege 7 are not yet formed on the insulating 8. The spring elements 14 are relaxed in the direction of the X-axis of the profile and thus drive the metal profiles 1 and 2 beyond the nominal dimension G out apart.

When passing through the device, the spring elements 14 are compressed, so that they exert a restoring force on the metal profiles 1, 2, which ensures the installation of the metal profiles 1 and 2 on the device itself.

Fig. 4 equals to Fig. 2 In the final fixed composite position of the metal profiles 1 and 2 with the insulating profiles 8. The Nutstege 7 are integrally formed on the foot portion 9 of the insulating profiles, wherein the thrust mediation between in a lateral recess (groove) in the foot portion 9 of the insulating 8 a toothed or knurled wire 15 is arranged, which rests with a part of its outer periphery on the inside of the webs 7a and enters into a positive engagement in the longitudinal direction of the profile with this. The spring element 14 is dimensioned in the x-axis so that it exerts a uniform or constant spring force with respect to the deformation path. The thickness of the spring elements 14 in the direction of the X-axis is in most cases the practice at least 2 mm.

Fig. 5 shows in detail by means of an enlarged detail of another embodiment, the clamping situation of the foot 9 of the insulating 8 in one of the metal profiles 1, 2. In this embodiment, the spring element 14 in the contact area 19 for insulating the web outside and in the contact area 18 to the metal profiles relative to the rest of the spring element material softer sealing lips 16 and 17.

The spring element 14 here preferably consists of a plastic and is designed such that an elastically springing or shape springing effect is provided. It thus has a harder consistency than the seals 16 and 17. The seals 16 and 17 may be integrally connected to the spring element 14 by coextrusion, gluing or otherwise mechanically connected. The seals 16 and 17 have a (preferably exclusively) softer consistency suitable for sealing tasks.

For example, the spring element 14 may be made of a rubber-like material such as APTK, silicone or the like with a Shore hardness of about 60, while the integrally disposed seals 16 and 17 have a lower Shore hardness for the specific task of the seal.

Fig. 6 shows one opposite Fig. 5 changed geometry of the receiving groove 4. The Isolierprofilfußabschnitt 9 is there against a wall 20, which is oriented parallel to the X-axis or main extension plane of the composite profile. In this case takes place between the wall 20 and the Isolierleistenfußabschnitt 9 a frictional connection, similar to Fig. 5 but without an undercut in the Fig. 5 is designed as an inclined surface. Also in this variant of the invention, the basic principle of the column S1, S2 is realized between the insulating and metal profiles. The undercut 7 ', however, represents a particularly stable and advantageous variant of the invention, in particular with regard to the absorption of tensile loads. It is essential that the insulating profile or here its foot section 9 is displaceable in the X direction during assembly.

In the variant of Fig. 7 is the Isolierprofilfußabschnitt 9 also on a wall 20 of the metal profiles. However, it has at the free end of the wall 20 a substantially perpendicular to the X-axis oriented projection 21, which serves for a secure, fail-safe engagement of the Isolierleistenfußes 9 in a correspondingly shaped recess 21 'of the metal profiles without the groove bottom 4' of Groove 4 is contacted at a gap width S greater than zero. For the provided by the tolerances movement play of Isolierprofilfußes 9, a gap 12 is provided.

Fig. 8 shows an insulating profile 22, in which the spring element 23 is laid on the opposite side to the inner web 24, ie, the spring element 23 now acts between the end face of the inner insulating strip 22 and the metal profile 1, 2 via the Nutsteg 24 (here in curved form ), on which the spring element 23 comes to rest.

Fig. 9 shows a further variant of the invention, in which the spring element 25 is inserted into a groove or pocket 25 'in the end face 26 of the Isolierleistenfußes 9 and the gap S bridged. It may theoretically even fill the gap substantially or completely and / or be integrally formed on the insulating profile. Alternatively, the groove with the spring element can also be formed in the metal profile (not shown here).

The described embodiments Fig. 3 to Fig. 9 have spring elements 14,23,25 which form a structural unit with the insulating profile 3, 8, 22, 27.

The insulating profiles consist of a poorly heat-conductive plastic, especially of polyamide, PVC or the like, wherein the spring elements are preferably used in grooves or recesses on the insulating profile (or alternatively on the metal profile). The grooves can hold the spring elements positively or non-positively. On the other hand, the spring elements can also be arranged integrally on the insulating strips in a simple manner by coextrusion, gluing or the like. The shape of the spring elements 14, ... is not limited to the embodiments shown.

On the other hand, the spring elements can also be formed in one piece with the insulating strip and (or identical to material - for example as spring sections in one-piece construction with the insulating profile), in which case the consistency of the spring elements can be different in terms of their hardness and compressibility.

Fig. 10 shows a further detail of an engagement of the insulating strip in a corresponding receiving groove on the metal profiles. In the end face 26, a recess or pocket 28 is inserted, on whose one groove side a strip-like spring tongue 29 is arranged. The pocket / groove 28 is dimensioned so that the spring tongue 29 is completely absorbed by the bag 28 in the case of abutment of the end face 26 at the groove bottom of the metal profiles.

Fig. 11 shows that instead of the spring element 14 according to Fig. 5 a spring tongue 30 is provided on the shoulder 8 ", which is supported against the associated Anformsteg 7 of the respective metal profile 1, 2 and exerts the spring action with respect to the concerns of the metal profiles on the device limitations V1, V2.

Fig. 12 shows a spring tongue 31 as a replacement of the spring element 23 according to Fig. 8 , which is resiliently supported against the middle, to the foot portion bent groove web 24 of the metal profiles.

The above also applies to profiles in which not the outer profile webs 7 but the inner webs 7, 7b or 24 are formed (eg pressed, rolled) and when the suspensions 29, 30, 31 on the metal profiles 1, 2 in one piece or separately are arranged (not shown).

Fig. 13 shows a heat-insulated composite profile according to the invention with a (virtually unchanged from the outside) geometry of the type Fig. 1 in which the spring elements 14 are in their operative position between the metal profiles 1, 2 and the insulating profile 8 and form a structural unit with this. The spring elements 14 are provided according to this Fig. With a largely tear-resistant thread 32, which is then provided in the spring element, if this from a material-elastic material, such as rubber o. is to prevent stretching, to avoid deterioration of the spring characteristics of the spring element when mounting the spring element in the insulating profile.

Fig. 14 shows a further embodiment of the invention, in which the at least one insulating profile 80 is integrally formed with an outer or inner profile section K made of plastic, so that according to either on the outside or on the inside of the composite profile no second metal profile is required. Also in this composite profile, an inventive gap S between the one metal profile 1, 2 and the insulating profile 80 is formed.

With regard to the tolerances, the following should be noted. As a rule, when measuring components, one starts from the so-called theoretical nominal dimensions which are used in the Fig. 1 are marked A, B and C. Based on these nominal dimensions results in a production-related tolerance field, which can be assigned to the nominal size.

The tolerance field can e.g. have the nominal size as the upper or lower limit; then the entire tolerance field is negative or positive.

However, the nominal dimension can represent a value within the tolerance field, so that this results in a positive plus and a negative minus of the specified size.

For the present case, in particular Fig. 2 This means that either all nominal dimensions are to be changed in accordance with the arrangement of the tolerance field, so that in each case at each end of the insulating profile, a gap S is formed. But you also have the opportunity. eg the nominal dimensions and the tolerance position according to Fig. 1 From the prior art, concerning the metal profiles to take over, but then the nominal size C of the insulating strip to be changed so that also the gap results in compensation of all tolerance fields between zero and a maximum.

For these cases new nominal dimensions C and / or A and B result.

Further, the width of the column S need not be set to the minimum of zero. In principle, a minimum gap can be defined with the gap thickness s (min) to which, in extreme cases, the tolerance fields of the three individual components are added, thus resulting in the total gap width s (max).

The invention summarizes in a simple way the connection technology the profiles by a construction and an associated manufacturing process, in which the individual component tolerances no longer affect (or at least only to a small extent) on the overall depth G of the profile without the outer view of the composite profile changed significantly for the viewer becomes. Already by a simple structural change in the connection region of the plastic and metal profiles, it is possible to reduce the nominal size of the overlapping composite profile, without it being necessary to change the nominal dimensions of the individual elements of the profile also.

A few formulas relating to the invention and to the prior art are summarized below:

State of the art:

$$\mathrm{G}\begin{array}{c}\mathrm{+}\mathrm{G}\mathrm{1}\\ \left(\mathrm{\pm }\mathrm{0}\mathrm{.}\mathrm{7}\mathrm{mm}\right)\\ \mathrm{-}\mathrm{G}\mathrm{2}\end{array}\mathrm{=}\mathrm{individual\; tolerances}\mathrm{+}\mathrm{Vorrichtungstolerenzen}\mathrm{=}\begin{array}{c}+\mathrm{a}\mathrm{1}\mathrm{+}\mathrm{b}\mathrm{1}\mathrm{+}\mathrm{c}\mathrm{1}\\ \\ -\mathrm{a}\mathrm{2}\mathrm{-}\mathrm{b}\mathrm{2}\mathrm{-}\mathrm{c}\mathrm{2}\end{array}\mathrm{+}\mathrm{VT}$$

Invention:

• G = device tolerance (towards zero)
• S = 0 $$\mathrm{S}\mathrm{=}\left(\mathrm{a}\mathrm{1}\mathrm{+}\mathrm{a}\mathrm{2}\mathrm{+}\mathrm{b}\mathrm{1}\mathrm{+}\mathrm{b}\mathrm{2}\mathrm{+}\mathrm{c}\mathrm{1}\mathrm{+}\mathrm{c}\mathrm{2}\right)\mathrm{/}\mathrm{2}$$
  

LIST OF REFERENCE NUMBERS

first metal profile

1

second metal profile

2

head Start

3 '

paragraph

3 "

insulating profiles

3a, 3b

Isolierprofilaufnahmenuten

4

groove base

4 '

exterior surfaces

5, 6

outer bars

7a

inner jetty

7b

undercut

7 '

insulating profile

8th

foot section

9

surfaces

10, 11

gap

12

spring element

13

spring elements

14a, 14b

knurled wire

15

sealing lips

16, 17

plant area

18, 19

wall

20

head Start

21

recess

21 '

insulating profile

22

spring element

23

groove web

24

spring element

25

groove

25 '

front

26

insulating profile

27

bag

28

spring tongue

29

spring tongue

30, 31

thread

32

insulating profile

80

Plastic profile section

k

nominal dimensions

A, B and C

tolerances

a, b, c, vt

gap thickness

s, s1, s2

gap

S, S1, S2

Mounting device limits

V1, V2

Claims (26)

1. Method for producing a thermally insulated composite profile, in which

   - at least one metal profile (1), which has at least one insulating profile receiving groove (4) which comprises a groove bottom (4') and webs (7, 24) oriented at an angle to the groove bottom, and at least one insulating profile (8, 22, 27, 80) which engages in the insulating profile receiving groove (4) of the metal profile (1) are provided,

   - wherein the at least one metal profile (1) and the at least one insulating profile (8, 22, 27, 80) are oriented relative to one another in a mounting device in such a way that the outer sides of the profiles which face away from one another are spaced apart by a reference dimension,

   - wherein the position assumed by the at least one insulating profile (8, 22, 27, 80) is fixed within the insulating profile receiving groove (4),
   characterized in that

   - the at least one metal profile (1) and the at least one insulating profile (8, 22, 27, 80) are pressed against guide surfaces or guide rollers of the mounting device by a spring element formed between the insulating profile and the metal profile or by an element which can be compressed elastically between the insulating profile and the metal profile,

   - while the position of the at least one metal profile (1) is fixed relative to the at least one insulating profile (8, 22, 27, 80) by forming or pressing the webs (7, 24) onto the at least one insulating profile (8, 22, 27, 80).
2. Method according to Claim 1, characterized in that a gap which spaces the insulating profile from the groove bottom is in each case formed between the bottom of the at least one insulating profile receiving groove and the at least one insulating profile (8, 22, 27, 80).
3. Method according to either of the preceding claims 1 and 2, characterized in that the spring elements are stressed when passing through the mounting device such that they exert a force on the metal profile or profiles (1) which ensures that the metal profiles (1) bear against the mounting device.
4. Thermally insulated composite profile, for windows, doors, facades or glazed roofs, comprising:

   - at least one metal profile (1) which has at least one insulating profile receiving groove (4) which has a groove bottom and webs (7, 24) oriented at an angle to the groove bottom, and

   - at least one insulating profile (8, 22, 27, 80) which engages in the insulating profile receiving groove (4) of the metal profile (1)

   - wherein a gap (S) is formed between the bottom of the at least one insulating profile receiving groove (4) and the at least one insulating profile (8, 22, 27, 80), and

   - wherein the position adopted by the at least one insulating profile (8, 22, 27, 80) is fixed within the receiving groove (4),

   - wherein the at least one metal profile and the at least one insulating profile are oriented relative to one another in such a way that the outer sides of the profiles which face away from one another are spaced apart by a reference dimension,

   - wherein the position of the at least one metal profile is fixed relative to the at least one insulating profile by forming or pressing the webs (7, 24) onto the at least one insulating profile (8, 22, 27, 80),
   characterized in that

   - at least one spring element (14, 23, 25, 29, 30, 31) or an elastically compressible element is arranged and/or formed between the at least one metal profile (1, 2) and the at least one insulating profile (8, 22, 27, 80).
5. Composite profile according to Claim 4, characterized in that the at least one insulating profile (80) is formed in one piece from plastic with an outer or inner profile portion (K).
6. Composite profile according to Claim 4 or 5, characterized in that the at least one spring element (14, 23, 25, 29, 30, 31) and/or the elastically compressible element is formed in one piece with or separately from the at least one metal profile (1, 2) and/or the at least one insulating profile (8, 22, 27, 80).
7. Composite profile according to one of the preceding Claims 4 to 6, characterized in that the elastically compressible element (25, 29) is arranged in the at least one gap (S1, S2).
8. Composite profile according to one of the preceding Claims 4 to 7, characterized in that the spring element (25, 29) is inserted into a pocket (25') in the end side (26) of an insulating profile foot (9) or of the metal profile (1, 2) and bridges the gap (S).
9. Composite profile according to Claim 8, characterized in that the pocket (25') is let at the end side (26) into the insulating profile foot (9) or in the metal profile and is dimensioned in such a way that, in the case where the end side (26) of the insulating profile (8, 22, 27, 80) bears against the groove bottom (4') of the metal profile (1, 2), the spring element (29) is completely accommodated by the pocket (25', 28).
10. Composite profile according to one of the preceding Claims 4 to 9, characterized in that the spring element is formed as a strip-like spring tongue (29, 30, 31).
11. Composite profile according to Claim 10, characterized in that the spring tongue (29, 30, 31) is supported against a web (7, 24) or the groove bottom (4') of the metal profile (1, 2).
12. Composite profile according to one of the preceding Claims 8 to 11, characterized in that at least one of the webs (7, 24) forms, on its side facing the insulating profile receiving groove (4), an undercut (7') in which a projection of the insulating profile foot (9) engages.
13. Composite profile according to Claim 12, characterized in that an intermediate gap (12) is formed in the region of the form-fitting undercut of the insulating profile foot (9).
14. Composite profile according to one of the preceding Claims 8 to 13, characterized in that the insulating profile foot (9) is formed onto the at least one insulating profile (3, 8, 22, 27, 80) via a shoulder (8") which lies substantially directly in a plane of extension of one of the webs (7, 24) of the insulating profile receiving groove (4) and bears against this web (7, 24) via the spring element.
15. Composite profile according to one of the preceding Claims 8 to 14, characterized in that a toothed or knurled wire (15) is in each case arranged between the insulating profile (8, 80) and the at least one metal profile (1, 2).
16. Composite profile according to Claim 15, characterized in that the wire (15) is substantially arranged in a recess of the insulating profile foot (9) and, on a portion of its outer circumference, produces a form fit with one of the webs (7, 24) in the longitudinal direction of the metal profile (1, 2).
17. Composite profile according to one of the preceding Claims 4 to 16, characterized in that the spring element (13, 23, 25) consists of a rubber-like material such as APTK, silicone etc.
18. Composite profile according to one of the preceding Claims 4 to 17, characterized in that the spring element (14, 23, 25) has a Shore hardness of approximately 60.
19. Composite profile according to one of the preceding Claims 4 to 18, characterized in that the spring element (14, 23, 25) has a tear-resistant thread (32).
20. Composite profile according to one of the preceding Claims 4 to 19, characterized in that the metal profile (1, 2) is formed as a lightweight metal profile.
21. Composite profile according to one of the preceding Claims 4 to 20, characterized in that it comprises two metal profiles (1, 2), wherein the at least one insulating profile (8, 22, 27, 80) is arranged between the two metal profiles (1, 2), wherein a gap (S2, S2) and a spring element are in each case provided between the two metal profiles (1, 2) and the at least one insulating profile (8, 22, 27, 80).
22. Composite profile according to Claim 21, characterized in that the dimensions of the two gaps (S1, S2) are substantially identical.
23. Composite profile according to either of the preceding Claims 21 and 22, characterized in that the gap widths s1, s2 of the gaps (S1, S2) satisfy the following condition: $$\mathrm{s}\mathrm{=}\mathrm{s}\mathrm{1}\mathrm{+}\mathrm{s}\mathrm{2}\mathrm{=}\mathrm{g}\mathrm{=}\mathrm{a}\mathrm{+}\mathrm{b}\mathrm{+}\mathrm{c}\mathrm{,}$$

    

    
    where:

    s:= Total gap width of the two gaps

    s1, s2:= Individual width of the gaps S1 and S2

    g:= Overall tolerance of the composite profile in the direction of extension of the three series-connected profiles 1, 2, 8.

    a:= Individual tolerance of the profile 1;

    b:= Individual tolerance of the profile 2;

    c:= Individual tolerance of the profile 8.
24. Composite profile according to Claim 23, characterized in that, with a maximum individual tolerance of all the individual profiles in the plus tolerance range, the sum of the gap dimensions (s1 and s2) of the gaps (S1, S2) is greater than zero.
25. Composite profile according to one of the preceding Claims 21 to 24, characterized in that sealing elements which are separate or connected to the insulating or metal profile (1, 2, 8) are formed between the metal profiles (1, 2) and the insulating profile (8, 22, 27, 80).
26. Composite profile according to one of the preceding Claims 21 to 25, characterized in that the respective one spring element (14) has, in the bearing region (19) with the insulating profile (8, 22, 27, 80) and in each case in the bearing region (18) with the metal profiles (1, 2), sealing lips (16, 17) which consist of a softer material than the remaining spring element (14).

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