DE10331382A1 - Composite profile with insulating bar, especially 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 The invention relates to a composite profile according to the preamble of the 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 1 represented this application.

Regarding The requirements for statics and thermal insulation have these profiles well proven in itself. Particularly advantageous is the possibility of two separated from each other trained insulating bars to connect the composite profiles, since this is the possibility offers, relatively inexpensive Insulating bars without complicated shape to use, which in enough Spacing apart the realization of a very stable network allow.

There However, the trend in window, door and facade construction to narrower profile views with the target direction preferably greater clear slice dimensions goes, Build composite profiles with two or more insulating bars often wide, whereas composite profiles with only one Isoliersteg often only an insufficient one stability and demonstrate strength.

In this respect, the solution of the 1 proven, in which the metal profiles are connected by means of two insulating webs which engage in teilprismatische - at least on one side of the groove base tapered - receiving grooves of the metal profiles, wherein between the insulating webs is a dovetailed partition.

Out Require stability reasons the insulating bars in the clamping area to the metal profiles a minimum wall thickness, to the forces occurring in the use of such profiles and To absorb burdens.

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

Although it has been tried even composite profiles with only a single Mehrkammerisolierprofil, which connects the outer metal profiles together, 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 relatively complicated insulating profile is expensive to produce, difficult to assemble and designed such that the positive-locking undercuts on the metal profiles are still relatively wide in order to provide the necessary stability for the connection achieve.

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

The solution This problem is the object of the invention.

The Invention solves this object by the subject matter of claim 1.

advantageous Embodiments of the invention are specified in the subclaims.

To Claim 1, the partition between the grooves extends at its end facing away from the groove bottom end over the free end of the Anformstege and here has an approach that both adjacent foot areas positively secures the metal profiles.

Different as in the prior art is so here to the partition between the two grooves preferably plate-shaped or web-shaped parallel walls is formed, an approach formed by the shaping of the Divider diverges so much to approach that he both adjacent footers form-fitting secured to the metal profiles.

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

Just an embodiment with two separate insulating bars is particularly preferred because they have the benefits of lower costs and better tolerance compensation with the alleged advantage of a one-piece bar - the narrower Construction width - surprising connects with each other and thereby realizes an even narrower face width as this according to the prior art even with one-piece insulating profiles for realizable was held.

Prefers sets the approach relative to the groove bottom of the grooves behind the free ends of the Anformstege. A distance is particularly advantageous here, because he minimizes the view width particularly clearly.

To a less preferred embodiment but the approach can also relative to the groove bottom of the grooves begin in the plane of the free end of the Anformstege and forms such in this regard the limiting case of the invention.

It lends itself to form the approach strip-shaped, in particular consistently over the whole Length of the Profils to achieve the fit.

To another approach, the approach but only in sections formed on the partition, that is, it can punch outs provided be, which increase the shear strength again.

Especially 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, to such a particularly effective To ensure positive engagement.

Prefers is the thickness of the partition before the approach 0.4 to 1.2 mm. Farther is preferred the thickness of the approach in any case in the range of maximum thickness more than 1.2 mm, to a sufficient Secure fit and the viewing width particularly clear to minimize.

It is particularly advantageous when the partition with the Anformstegen one at least 50% longer Extension perpendicular to the groove bottom than the Anformstege, a sufficient one Distance of the approaches to ensure the ends of the Anformstege.

To a further preferred embodiment are the foot sections arranged laterally offset to a central portion and the foot sections are each about an acute angle to the foot sections and to the central portion aligned connecting portion with connected to the middle section. It is possible and advantageous if at least the foot section and the connecting portion have the same thickness to a particularly narrow View width to realize. The foot must be opposite to that other insulating bridge strength quasi can not be formed widened and can in which in the receiving groove projecting area even be shaped almost rectangular.

To According to an advantageous embodiment, the approaches to the partition wall relative to the groove base by more than 1 mm to this removed as the Anformstege end up.

Advantageous is the partition in the mounting position exclusively on Train burdened by the widening approach.

It is also appropriate if the Anformstege, the partition and the insulating bars on each other are tuned that the foot sections pressed in the direction of the partition and its widening approach are, in turn, by its shape ensures that the Isolierstege come in the groove bottom of the grooves to the plant.

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

Prefers the two insulating bars are formed separately from each other and not cohesive connected with each other.

Alternatively, the two insulating webs but also in its central portion cohesively, in particular via at least one or more in particular film-like Materi alstege be connected to each other, wherein the material webs preferably have a thickness of 0.3 - 1.5 mm. This latter, although expensive embodiment thus uses the advantages of the invention, wherein the variant is preferred with not form-fitting connected insulating bars, since it is just as slim builds the variant with material connection and other advantages such as a lower tolerance sensitivity and preventing problems with assembly due to mere Maßüberschneidungen when inserting, but this 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 bars as cohesive Isolierprofilteil particular a grand piano a block window connected and formed, the at least a receiving groove for fixing a glass retaining strip for a disc or a chamber for Corner connector has.

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

1 a composite profile of two metal profiles and two insulating bars according to the prior art;

2 a section through a first inventive composite profile of two metal profiles and two insulating bars;

3 a section through a second inventive composite profile of two metal profiles and two insulating bars;

4 a section through a third composite profile according to the invention of two metal profiles and an insulating web;

5 a section through a fourth composite profile according to the invention, again from two metal profiles and two insulating bars;

6 a section through a fifth inventive composite profile of a metal profiles and a plastic and insulating web profile; and

7 an excerpt from 6 ,

The 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.

The two metal profiles 1 . 2 are in their mutually facing area with two mutually parallel insulating webs 3a . 3b from a relative to the material of the metal profiles 1 . 2 poor heat-conducting material positively connected with each other.

The insulating bars 3a . 3b prove this 1 at their two facing away from each other and the metal profiles 1 . 2 facing end portions each foot sections 4 on, which in appropriately shaped side by side grooves 5a, b the metal profiles 1 . 2 intervention. The insulating bars 3a . 3b here - which is preferred - in itself no hollow chamber, without this would be ruled out in principle. It widens but i.allg. again the view.

The two foot sections 4 each lie slightly in the direction of the adjacent insulating web 3a respectively. 3b laterally offset to a middle section connecting them 6 , The foot sections 4 are each about an acute angle to the foot section 4 and to the middle section 6 aligned connecting section 7 with the middle section 6 connected.

To secure a particular perpendicular to the image plane of 2 Shear-resistant composite can in a groove 8th the foot sections 4 one knurled wire each 9 or any other element securing the shear-resistant composite.

The foot sections 4 be in the receptions 5 by molding - in particular rolling - each of an outer Anformsteg 10a , b, which is perpendicular to the groove bottom 12 extends, positive and non-positive in the grooves 5 anchored. Between the ends of the middle sections 6 and the forming webs 10a, b here are seals 28 arranged, each in a sealing groove 29 at the connection sections 7 intervene and be held there. They are used for orientation and installation of insulating bars 3 at the bar 13 and for sealing the gap in the finished composite.

In the middle between the two foot sections 4 adjacent insulating bars 3a, b which here symmetrical to one between the insulating bars 3a, b extending median plane M are arranged, each is a partition 11 at the groove bottom 12 formed, perpendicular to the bottom of the groove 12 over the free end of the Anformstege 10a, b extends beyond and in which over the free end of the Anformstege 10a, b Beyond extending area by means of a positive connection with the insulating bars 3a, b these on the metal profiles 1 . 2 guaranteed.

To 2 is the positive connection by a against the partition 11 continuously broadening approach 13 realized, which has a widening from the end of the partition cross-section and between the angle to each other aligned connecting sections 7 the mutually adjacent insulating webs 3a . 3b intervenes, between which here also from the groove base widening space 30 is trained.

In this arrangement, the foot areas 4 the insulating bars 3a . 3b through the interaction of the two outer Anformstege 10a, b with the respective approach 13 on the associated partition 11 positively secured. In the area of extension of the Anformstege 10a, b are the foot areas 4 each configured substantially at right angles, wherein the Anformstege projections 32 have to improve the positive connection, which in the rolled-up state in the foot sections 4 Press in the partition 11 for separating the directly adjacent grooves 5a . 5a the metal profiles 1 . 2 for receiving the insulating bars 3a, b protrudes so far over the grooves 5a . 5b or over the free ends of the Anformstege 10 in addition, that in the region of the positive connection between the insulating webs 3a . 3b and the metal profile 1 . 2 through the approach 13 in each case sufficient material on the insulating bars 3a, b is available to the required stability of the insulating bars 3a, b and the stability of the composite with the metal profiles 1 . 2 ensure without the insulating bars 3a, b larger, which would inevitably lead to a broader composite.

In this case, the partition 11 themselves are made relatively thin, since it does not serve for lateral stabilization, ie not on bending, but only on train through the broadening approach 13 is charged. The partition 11 is safely supported and held between the two insulating bars.

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

By molding the Anformstege 10a, b to the insulating bars 3a, b become the insulating bars 3a . 3b to the partition 11 and their broadening approach 13 Pressed, in turn, by its shape ensures that the Isolierstege 3a, b also in the groove base 12 the recording grooves 5 come to the plant.

The area between the insulating bars can by means of an insulating layer 31 additionally be formed thermally insulated.

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

The 4 shows a further variant in which the two Isolierstege 3a, b unlike in 2 and 3 cohesively connected to each other, wherein the two insulating webs 3a , respectively in their middle section 6 over two parallel and perpendicular to the web sections aligned material webs 16 . 17 connected to each other. These material webs 16 . 17 should be as film-like as possible and have a thickness of 0.3-1.5 mm.

The material webs 16 . 17 serve chamber formation to reduce convection within the area between the land sections 3a and 3b and are preferably so movable to design that they make the connection between the web sections 3a . 3b due to tolerances of the metal profiles 1 . 2 and the bridge sections 3a, b is superimposed, not hindered.

The 5 shows an alternative to 2 in which the strip-like approach 13 ' has no triangular cross-section but a round cross-section, so that the last shape is cylindrical. The approach may also have a different shape, such as an approximate rectangular shape like that 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 adapted to this geometry ..

6 shows the section of a window 20 in block construction, in which the frame stop 21 the wing 22 completely covered from the outside. The wing 22 with the metal profile 1 has a narrow view width, wherein the outside wing profile and here also Isolierprofilteil 23 with two bars 3a ' . 3b ' engages in the same receiving contour as the two separate insulating bars 3a, b according to 2 , The insulating bar profile 23 serves here on the one hand insulating and also takes over other functions. So it has a right-angled chamber 24 on, which serves to receive a corner connector for stabilizing the Isolierprofilteils (not shown here). In addition, the Isolierprofilteil has 23 a receiving groove 25 for fixing a glass retaining strip 26 for a slice 27 ,

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

How out 7 can be seen, has the wing profile 1 similar to 2 or 3 two foot sections on one of its sides 4a, b , in largely rectangular grooves 4 of the metal profile 1 intervention. Also here is in Nutgrund 12 a partition 11 At the end of this process, the form-closing approach 13 located.

Regarding the partition 11 It should also be noted that this wall - as previously indicated - can be made extremely thin-walled, which on the one hand the view width of the composite profile benefits, 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 recording grooves 4 for the adjacent insulating bars 3 each through the thin partition 11 are formed, which the Anform- or Einspannstege 10a, b clearly surmounted, with the dividing wall 11 in particular by means of the approach to her on her side facing away from the groove bottom side approach 13 positive locking the insulating bars 3a, b on the metal profiles 1 . 2 guaranteed. The length of the partition 11 it should be such that a sufficient strip thickness over the entire course can be realized.

1, 2

metal profiles

3a, 3b

insulating bars

4

foot sections

5

receiving grooves

6

midsection

7

connecting sections

8th

groove

9

wire

10

Anformstege

11

partition wall

12

groove base

13

approach

14

latching receptacle

15

detent spring

16 17

material webs

20

window

21

Frame stop

22

wing

23

Isolierprofilteil

24

chamber

25

receiving groove

26

Glazing bead

27

disc

28

seals

29

seal groove

30

free space

31

damp course

32

projections

Claims (19)

Composite profile, in particular for doors, windows or facades, of a) at least one or more metal profiles) ( 1 . 2 ) and at least two insulating bars ( 3a, b ), b) wherein the at least one metal profile ( 1 . 2 ) and the insulating bars ( 3a, b ; 3a ' . 3b ' ) are positively connected to each other in that each mutually adjacent foot sections ( 4 ) at the two insulating webs ( 3a, b ) in mutually adjacent grooves ( 5 ) on the at least one metal profile ( 1 . 2 intervene, c) between the adjacent grooves ( 5 ) a partition wall ( 11 ) on the metal profile ( 19 ), and d) wherein the foot areas ( 4 ) each at their from the partition ( 11 ) facing away by means of forming webs ( 10a, b ) are pressed against the dividing wall, characterized in that e) the dividing wall ( 11 ) between the two adjacent grooves ( 4 ) at her von Nutgrund ( 12 ) opposite end over the free end of the Anformstege ( 10a, b ) and here an approach ( 13 . 13 ' . 13 '' ) having both adjacent foot areas ( 4 ) secures positively to the metal profiles. Composite profile according to claim 1, characterized in that the approach ( 13 . 13 ' . 13 '' ) relative to the groove bottom ( 12 ) of the recording grooves ( 5 ) behind the free ends of the Anformstege ( 10a, b ). Composite profile according to claim 1 or 2, characterized in that the approach ( 13 . 13 ' . 13 '' ) strip-shaped, in particular designed as a continuous strip. Composite profile according to claim 1 or 2, characterized in that the approach ( 13 . 13 ' . 13 '' ) only in sections to the partition ( 11 ) is formed. Composite profile according to one of the preceding claims, characterized in that the approach ( 13 . 13 ' . 13 '' ) has a triangular, round or rectangular cross-section and into a correspondingly shaped chamber ( 30 ) between the two insulating webs ( 3a, b ) intervenes. Composite profile according to one of the preceding claims, characterized in that the thickness of the partition ( 11 ) before the approach ( 13 . 13 ' . 13 '' ) 0.4 to 1.2 mm. Composite profile according to one of the preceding claims, characterized in that the thickness of the approach ( 13 . 13 ' . 13 '' ) is more than 1, 2 mm. Composite profile according to one of the preceding claims, characterized in that the partition wall ( 11 ) with the Anformstegen by at least 50% longer extension perpendicular to the groove bottom ( 12 ) than the Anformstege ( 10a, b ). Composite profile according to one of the preceding claims, characterized in that the foot sections ( 4 ) laterally offset to a central portion ( 6 ) and that the foot sections ( 4 ) each at an acute angle to the foot sections ( 4 ) and the middle section ( 6 ) aligned connecting section ( 7 ) with the middle section ( 6 ) are connected. Composite profile according to one of the preceding claims, characterized in that between the two free ends of the middle sections ( 6 ) of the insulating webs and the forming webs ( 10a, b ) Seals ( 28 ) are arranged. Composite profile according to one of the preceding claims, characterized in that the projections ( 13 . 13 ' . 13 '' ) on the partition ( 11 ) relative to the groove base set by more than 1 mm to this remote than the Anformstege ( 10 ) end up. Composite profile according to one of the preceding claims, characterized in that the partition wall ( 11 ) in the assembly position solely to train by the broadening approach ( 13 . 13 ' . 13 '' ) is charged. Composite profile according to one of the preceding claims, characterized in that the Anformstege ( 10a, b ), the partition ( 13 . 13 ' . 13 '' ) and the insulating bars ( 3a . 3b ) are matched to one another such that the foot sections in the direction of the partition ( 11 ) and its broadening approach ( 13 . 13 ' . 13 '' ) are pressed, which in turn ensures by its shape that the insulating bars ( 3a, b ) in the groove bottom ( 12 ) of the recording grooves ( 5 ) come to the plant. Composite profile according to one of the preceding claims, characterized in that in the region between the insulating webs ( 3a, b ) an insulating layer ( 31 ) is arranged. Composite profile according to one of the preceding claims, characterized in that the insulating webs ( 3a, b ) via at least one latching receptacle ( 14 ) and a corresponding detent spring ( 15 ) are joined together to form a mounting unit. Composite profile according to one of the preceding claims, characterized in that the insulating webs ( 3a, b ) formed separately from each other and are not materially connected to each other. Composite profile according to one of the preceding claims, characterized in that the insulating webs ( 3a, b ) in its middle section ( 6 ) materially, in particular via at least one or more in particular film-like material webs ( 16 . 17 ) are interconnected. 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. Composite profile according to one of the preceding claims, characterized in that the insulating webs ( 3a ' . 3b ' ) cohesively as Isolierprofilteil ( 23 ) in particular a wing of a block window are interconnected and formed, the at least one receiving groove ( 25 ) for fixing a glass retaining strip ( 26 ) for a disc ( 27 ) or a chamber ( 24 ) has for corner connector.