CN113236078A

CN113236078A - Composite profile for door, window or facade elements

Info

Publication number: CN113236078A
Application number: CN202110548846.9A
Authority: CN
Inventors: C·汉克
Original assignee: Schueco International KG
Current assignee: Schueco International KG
Priority date: 2014-05-05
Filing date: 2015-04-29
Publication date: 2021-08-10
Also published as: WO2015169668A1; CN106255795A; EP3140483A1; RU2694378C2; CN106255795B; RU2016146491A; EP3140483B1; RU2016146491A3; PL3140483T3

Abstract

The invention relates to a composite profile (1) for a door, window or facade element, comprising at least one first metal profile (2) and at least one second metal profile (4), wherein the first metal profile (2) and the second metal profile (6) are connected in a first insulating plate zone I by means of at least one or more insulating plates (8, 8a, 8b, 8c, 8d, 8e, 22), and wherein a non-shearing connection is formed between one of the metal profiles (2, 4, 6) and the at least one or more insulating plates (8, 8a, 8b, 8c, 8d, 8e, 22), characterized in that the at least one insulating plate or the insulating plates (8, 8a, 8b, 8c, 8d, 8e, 22) are part of the non-shearing connection, and the at least one or more insulating plates are connected over the entire length in combination with two end sections (10, 10), 13) But also in the web sections thereof between the grooves (11, 15a) of the metal profiles 2, 4, 6, the cross-sectional geometry thereof is C-shaped.

Description

Composite profile for door, window or facade elements

The present application is a divisional application based on the chinese patent application with application number 201580023243.X, international application number PCT/EP2015/059386, application date 2015, 4-29, entitled "composite profile for door, window or facade elements".

Technical Field

The invention relates to a composite profile for a door, window or facade element according to the preamble of claim 1.

Background

In the case of composite profiles for door, window or facade elements with a plurality of insulating panels, shear stresses can occur between the components of the composite profile when the temperature increases or decreases on one side, as occurs at seasonal changes. Due to the shear strength of the composite profile structure, deformations of the composite profile occur as a result of the shear stress, which deformations lead to bulges on the hotter side of the composite profile. Such deformations may adversely affect the function of the door or window frame made of the composite profile.

In particular for long composite profiles used as frame side members for doors, such temperature-induced deformations of the composite profile have an adverse effect on the function of the seal and the closure system.

Solutions are known from the prior art which are directed to avoiding or slowing down such stresses or deformations of the composite profile. For example, EP 0829609 a2 proposes that in the case of insulating plates for connecting the inner profile to the outer profile, the shear strength is low, close to zero, or that sliding guides are provided.

Composite profiles of the type according to EP 0829609 a2 have proven themselves. However, composite profiles of the type according to fig. 4 of EP 0829609 a2 have not achieved a significant market value due to structural deficiencies. It is problematic with such a construction that the tolerance ranges that have to be selected for the assembly of the profile are such that the finished composite profile can no longer meet the important, static and, in particular, quality requirements.

The aluminum profile is subjected to anodic oxidation treatment or is provided with a paint coating. Little material is removed from the base material due to the anodizing process, and material is applied to the base material during painting. In order to make the construction equally suitable for both coating processes, a correspondingly large tolerance range must be provided, and this tolerance range must be taken into account in order to ensure a faultless assembly of the profile parts.

When the composite profile is assembled, first of all, a metal partial profile is plugged into an insulating plate made of plastic. The profile length which is usual here in the production of composite profiles is 6 m. Such a large length requires correspondingly large tolerances, so that the profiles can be easily plugged into one another during installation. The connecting region is then mechanically pressed (rolled). Thereby creating a shear resistant composite. The non-sheared joint remains in its original state or conforms to its original tolerance. However, composite profiles have not been achieved to date in accordance with the technical teaching of fig. 4 of EP 0829609 a2 in general.

In contrast, the non-sheared composite body according to fig. 5 of EP 0829609 a2 has proved to be particularly suitable. However, it is disadvantageous in this respect that the insulating plate is relatively expensive due to the required precision. Furthermore, a shorter insulating plate cannot be realized due to the connection inside the insulating plate.

Disclosure of Invention

Against this background, the object of the present invention is to reduce the disadvantages of the prior art according to fig. 4 of EP 0829609 a 2.

The invention achieves said object by the subject matter of claim 1.

The main difference from the prior art is that the at least one insulating plate or the insulating plates are part of a shear-free connection, which overall has a C-shaped cross-sectional geometry over its entire length together with two end sections, but also in its web section between the grooves of the metal profile.

The invention furthermore provides, according to claim 33, a window or door or facade element having at least one or more composite profiles according to one of the claims cited therein.

The invention is based on the idea that the insulating plate springs provided for the shear-free connection are positively prestressed elastically by means of a suitable geometry of the insulating plate, which is achieved by means of a shaping process for connecting the insulating plate to a metal profile.

The insulating plate, which is elastically spring-elastic and positively pretensioned in the installed state, is thus provided overall over its entire length together with the C-shape of the insulating plate on the end sections, but also in its web sections between the grooves of the metal profiles, and in the installed state can advantageously compensate for large manufacturing tolerances, in particular for manufacturing tolerances of the coated metal profiles. The opposite insulating plates are arranged with their open sides in the same direction, so that the spring-elastic pretensioning in the two insulating plates is advantageously superimposed.

As an advantageous variant, the C-shaped recess of the insulating plate is provided with undercuts in its web section between the grooves of the metal profiles, in order to be able to fix the folding element, for example a seal, in an advantageous manner in a simple manner.

Further advantageous embodiments follow from the dependent claims.

Drawings

Embodiments according to the subject matter of the present invention are shown in the drawings and described in detail below. Wherein:

fig. 1 shows a sectional view of a first composite profile according to the invention;

figure 2 shows a cross-sectional view of a composite profile according to the invention in the form of figure 1;

figure 3 shows a partial enlargement of a part of an insulating panel according to the composite profile solution of figure 2;

fig. 4 shows a partial enlargement of the metal profile of the composite profile solution of fig. 2;

figure 5 shows a cross-sectional view of an insulating plate according to the invention;

figure 6 shows a cross-sectional view of another insulating plate according to the invention;

figure 7 shows a cross-sectional view of another insulating plate according to the invention;

figure 8 shows a cross-sectional view of another insulating plate according to the invention;

FIG. 9 shows a cross-sectional view of an insulating plate according to the invention of the type according to FIG. 8, but with an undercut C-shaped notch;

FIG. 10 shows an enlarged partial view of a groove in a metal parting material for receiving an insulating plate according to the present invention;

FIG. 11 is a cross-sectional view of the insulating plate according to FIG. 9 inserted on one side into a metallic parting material;

fig. 12 shows a detail of a composite profile according to the invention with an insulating plate according to the invention in the rolled (mounted) state;

figure 13 shows a cross-section of an insulating plate according to the prior art before rolling;

fig. 14 shows a cross-sectional view of an insulating plate according to the prior art after rolling.

Detailed Description

Fig. 1 shows a composite profile 1 according to the invention. The composite profile 1 can be used as a sash frame profile as part of a sash frame or window frame (blendrhmen) for doors, windows or other facade elements, and the following description therefore applies equally to sash frame profiles and window frame profiles.

The composite profile 1 has a first metal profile, namely an outer metal profile 2, in which at least one cavity 3 is formed, and a second outer metal profile 4, in which at least one cavity 5 is likewise formed. Between the two

metal profiles

2 and 4, a third metal profile, namely a metal intermediate profile 6, is arranged, in which at least one cavity 7 is likewise formed.

Alternatively, the

metal profiles

2, 4, 6 can also be designed without

distinct cavities

3, 5, 7 or with a plurality of cavities.

The first metal outer profile 2 is connected to the metal intermediate profile 6 by at least one or more first (here parallel) insulating plates 8. The insulating plate 8 forms a first insulating plate region I or insulating plate plane between the first metal outer profile 2 and the metal intermediate profile 4. The second metal outer profile 4 and the metal intermediate profile 6 are likewise connected by at least one or more second (here parallel) insulating plates 9. The insulating plate 9 forms a second insulating plate region II or insulating plate plane between the second metal outer profile 4 and the metal intermediate profile 6.

The first and second

insulating plates

8, 9 here are purely exemplary without cavities. Alternatively, however, the insulating

plates

8, 9 can also have one or more cavities, or the first insulating plates or the second insulating plates can be combined by transverse webs to form a total insulating profile.

The insulating

plates

8, 9 of the insulating plate region I, II are located here, for example, in one plane. Alternatively, the insulating

panels

8, 9 of the insulating panel region I, II may also be arranged offset from one another vertically and/or horizontally, respectively.

The first and second metal

outer profiles

2 and 4 and the metal intermediate profile 6 are preferably produced as extruded aluminum profiles. Alternatively, it may be made of other materials, such as steel, and/or using other manufacturing methods. The insulating

plates

8 and 9 are made of a material that reduces the heat conduction, preferably a plastic material, so that a substantial thermal separation is achieved between the

respective metal profiles

2, 4, 6.

Alternatively, metal insulation plates with reduced heat permeability may also be used, which may be provided with interruptions or notches in order to reduce heat conduction (as disclosed, for example, in EP 0717165 a 2).

The insulating

plates

8 and 9 are preferably plate-shaped in cross section and have thickened end sections 10. Each end section 10 is preferably inserted into a corresponding groove 11 of a respective one of the

metal profiles

2, 4, 6, the groove walls preferably surrounding the thickened end sections 10 of the insulating

plates

8, 9 in the x-direction and the y-direction (see coordinate system in fig. 1) in a form-fitting manner. The respective end section 10 preferably has a trapezoidal or triangular or wedge-shaped or L-shaped or rectangular cross section. The respective grooves 11 each have a cross section of a corresponding cross-sectional shape.

In order to obtain a shear-resistant and thus additionally force-fitting connection between the end sections 10 and the respective groove 11, it is advantageous if the end sections 10 are glued or are fitted into the respective groove 11 by means of wires or are fitted into the groove 11 by means of another suitable connection method, which increases the shear strength in the direction of the profile (perpendicular to the drawing plane of fig. 1) due to the positive-locking effect.

In fig. 1, the second insulating plate region II has, for example, second insulating plates 9, the respective end sections 10 of which are positively and non-positively connected to the respective grooves 11, so that a shear-resistant connection is formed between the second insulating plates 9 and the outer and intermediate metal profiles adjacent thereto, in particular also in the z-direction (see coordinate system in fig. 1) or in a direction perpendicular to the cross section of the composite profile 1. This connection is also referred to below as a shear-resistant formation of one of the two insulating plate regions, here the second insulating plate region. This construction provides shear strength against forces arising from expansion on the window or door or the like.

In contrast, the shear strength of the other insulation plate regions, in this case the first insulation plate region, is in all cases lower than the shear strength of the second insulation plate region. The shear strength is selected such that at least two elements in the insulation board region can move relative to each other due to expansion. The insulating panel region I with the lower shear strength is preferably oriented toward the outside of the building in the installed state on a window or door, since the temperature difference here is greater than the temperature difference on the inside of the building, so that the lower shear strength here is particularly important for compensating the expansion effect. Conversely, the insulation panel zone with the higher shear strength is preferably towards the inside of the room. This variant of the invention is particularly advantageous. It is also conceivable, however, for the insulating-plate zone with the higher shear strength to be arranged towards the outside of the room.

The first insulating plate zone I, see fig. 1, preferably has an insulating plate 8 which has a first end section 10 at each of its two ends, which end sections are connected positively and non-positively to the respective groove 11, so that a connection which is also resistant to shear, in particular in the z direction (see coordinate system in fig. 1), is formed in each case.

The second end of the first insulating plate 8 of the first insulating plate region I, in contrast, has an end section 12 of substantially bayonet-type cross section. The cross section of the clip strip is formed by a clip strip rib 13 and a clip strip tab 14. The bayonet ridges 13 here have, purely by way of example, a circular cross section. Alternatively, the bayonet ridges 13 can also have a non-circular or elliptical or polygonal cross section. Here, the rib projections 13 engage, again purely by way of example, in grooves 15 of the first metal outer profile 2, the groove walls of which in the x-direction and y-direction (see coordinate system in fig. 1) positively enclose the respective end section 12 of the insulating plate 8 with a substantially rib-shaped cross section.

Unlike the end portion 10, however, the end portion 12 with the substantially strip-shaped cross section is not connected in a shear-resistant manner to the groove 15, so that a shear-reducing connection, also referred to in the prior art synonymously as a shear-flexible or shear-free connection, is achieved in the z-direction (see coordinate system in fig. 1), which advantageously can accommodate temperature-induced deformations of the first metal outer profile 2. Fig. 5, 6 and 7 show embodiments according to the invention of a shear-flexible or shear-free connection in the end section 12 of the insulating plate 8.

This results in a composite profile 1 which, in a first insulating plate region I, in relation to the z-direction (see coordinate system in fig. 1), has a connection between the first metal outer profile 2 and the insulating plate 8 or the metal intermediate profile 6 which is shear-reduced, in particular shear-flexible or shear-free, relative to the other insulating plate region, while the second insulating plate region II has a shear-resistant connection between the second metal outer profile 4 and the insulating plate 9 or the metal intermediate profile 6, respectively.

Alternatively, the composite profile 1 according to the invention can also have a shear-reducing, i.e. shear-flexible or shear-free connection between the second metal outer profile 4 and the insulating plate 9 or the metal intermediate profile in the second insulating plate region II, while the first insulating plate region I has a shear-resistant connection between the first metal outer profile 2 and the insulating plate 8 or the metal intermediate profile 6 relative to the shear-reducing connection.

This results in a composite profile 1 which, by means of a shear-flexible or shear-free connection of the

outer metal profiles

2, 4 and the respective insulating

plates

8, 9 or the central metal profile 6, can compensate for deformations caused by temperature and, surprisingly, in a composite profile 1 having a high planar moment of inertia or second moment of area.

In a less preferred embodiment of the invention, the composite profile 1 can also have a shear-flexible or shear-free connection between the

outer metal profiles

2, 4 and the respective insulating

plates

8, 9 or the metal intermediate profile 6 in the two insulating plate regions I, II in relation to the z-direction (see coordinate system in fig. 1).

The first metal outer profile 2 is preferably separated from the metal intermediate profile 6 by a cavity 16, which is formed in the first insulating plate region I between the two first insulating plates 8 and the adjoining metal profile, while the metal intermediate profile 6 is separated from the second metal outer profile 4 by a cavity 17, which is located in the second insulating plate region II between the second insulating plate 9 and the adjoining metal profile. A plurality of

cavities

3, 16, 7, 17 and 5 are thus formed from the outer side of the first metal outer profile 2 to the second outer side of the second metal outer profile 4, which cavities serve to ensure good thermal insulation.

The metal

outer profiles

2 and 4 have outwardly projecting

webs

18 and 19 on opposite sides, a groove 20 for receiving a seal being provided on the end side of the web 18, and a further groove 21 for receiving a seal being provided on the end side of the web 19. Depending on the specific type of function (wing frame or sash), the

webs

18 and 19 may also be present on one side, with only one or no said webs.

Fig. 2 or fig. 3 and 4 each show a further embodiment of the composite profile according to fig. 1.

One embodiment of clip rib 13 or 23 is shown in fig. 3. In fig. 3, clip rib 13 or 23, respectively, has a circular cross-sectional geometry. Alternatively, clip bead 13 or 23 can also be oval, elliptical or polygonal in design. In addition, clip rib 13 or 23 may have a coextruded film or coating on its surface. The coextruded film can be designed, for example, in such a way that the film in contact with the grooves 15 of the first metal outer profile 2 or with the second metal outer profile 4 or with the grooves 25 in the insulating plate 22 has a lower coefficient of friction, while the other film or coating side in contact with the insulating plate 8, 22 is fixedly connected to the insulating plate 8, 22. The co-extruded film thus produces a coating with a particularly low coefficient of friction, which is fixedly connected to the respective insulating plate 8, 22, generally in the region of the rib 13 or 23, so that a connection which is approximately shear-free or shear-flexible in the z-direction (see coordinate system in fig. 1 or 2) is produced.

Fig. 4 shows a groove 15 or 25 on a metal profile or on an insulating plate section. The groove 15 or 25 has a circular cross-sectional geometry. Alternatively, the cross-sectional geometry of the groove 15 or 25 can also be oval, elliptical or polygonal, depending on the selected cross-sectional geometry of the bayonet ridge 13 or 23, the cross-sectional geometry of the groove 15 or 25 corresponding to the cross-sectional geometry of the bayonet ridge. In an alternative embodiment, the grooves 15 or 25 may have a cross-sectional geometry similar to a serration groove connection hub or a cross-sectional geometry similar to a splined connection hub.

The contact of the teeth 32 or a plurality of keys (not shown) of the hub 31 by means of the serration groove connection of the grooves 15 or 25 results in a low-friction connection between the insulating plate 8, 22 in the first metal outer profile 2 or the second metal outer profile 4 or the insulating plate 22 and the groove 15 or 25 in the respective metal

outer profile

2, 4 or the insulating plate 22, so that a shear-flexible connection in the z-direction (see coordinate system in fig. 1 or 2) is achieved. In addition, the serration groove connects the hub teeth or the spline shaft to the hub, which also helps to achieve tolerance compensation between the bayonet ridges 13 or 23 and the grooves 15 or 25.

The following is a review of the design of the connection of the clamping strips on the insulating plate 8 and the associated

metal profiles

2, 4, 6 to the prior art according to fig. 13 and 14.

Fig. 13 and 14 schematically show the prior art before and after the rolling of the webs formed on the

metal profiles

2, 4, 6 onto the insulating plate 8.

Fig. 13 shows the prior art of EP 0829609 a2 corresponding to fig. 4, but before installation. For a better understanding, the connection region without shearing is shown with a particularly large tolerance range (gap). On the shear-resistant side, tolerances or gaps are compensated for by rolling the web after the six-meter long profile has been installed. In this case, force F is applied to the webs of the

respective metal profiles

2, 4, 6 in order to achieve plastic deformation of the webs until the webs bear against the insulating plate 8 and thereby achieve a positive and non-positive connection in the profile plane or in the z direction with respect to the coordinate system in fig. 1 or 2 between the end section 10 of the insulating plate 8 or of the insulating plate 8 and the groove 11 in the case of a shear-resistant connection.

The illustration of fig. 14 shows the distortion of the insulating plate 8 by rolling due to the large tolerances required and the large gaps resulting therefrom, whereby the composite profiles according to the prior art are generally unsuitable for use in door or window constructions. This twisting locks the translational mobility, the large clearance limits the dimensional stability of the composite profile and reduces the static load-bearing capacity of the composite profile.

In contrast, fig. 5 shows a first insulating plate 8a according to the invention having a C-shaped cross-sectional geometry. The insulating plate 8a is characterized by having a shear-free region a and a shear-resistant region B. Overall, the insulating plate 8a has a substantially C-shaped cross-sectional geometry, wherein the non-sheared areas have clip rib 13 with a fan-shaped cross-sectional geometry. Clip rib 13 may also have other suitable cross-sectional geometries such as a T-shape, a triangular shape, or any other suitable geometry, as shown for example in fig. 3. However, a substantially fan-shaped cross-sectional geometry has proven to be particularly advantageous.

Correspondingly, the insulating plate 8a has a recess 105 which is open in the direction of the negative y-value in relation to the drawing plane of fig. 1 or 2 and 5 or in relation to the coordinate system in fig. 1, so that a C-shaped cross-sectional geometry is obtained for the web section between the two

metal profiles

2, 4, 6.

The insulating plate 8a has a web width "W" and a total width "W". The web width "W" is approximately equal to half the total width "W" of the insulator plate. The insulating plate 8a has a length "U" and a total length "U". The length "U" is approximately equal to one quarter of the total length "U". A certain deformability of the insulating plate 8a is thereby achieved on the "back" of the C-shaped cross section.

It is essential to the invention that each insulating plate according to the invention has the geometric features described above and referenced in fig. 5 to 9. The insulating plate 8a has an upper shoulder 101 and a lower shoulder 102 on the side with the clip rib 13 for abutting against the

metal profiles

2, 4, 6. In other words, the

shoulders

101 and 102 adjoin the

metal profiles

2, 4, 6.

The region with the end section 10 for forming a shear-resistant connection is denoted here by "B". The area "B" of the insulating plate 8a has a slope 103. This bevel 103 preferably has an angle of 5 ° to 50 °, particularly preferably a 45 ° angle of 15 °, with the main direction of extension of the insulating plate 8a, which here coincides with the x-axis of the coordinate system in fig. 1.

This slope 103 of the insulating plate 8a is particularly important. When rolling the insulating plate 8 in the

metal profiles

2, 4, 6, the insulating plate 8a is pushed out of its geometrically desired position (here horizontal) by the bevel 103. The insulating plate 8a is curved overall by rolling or is rolled out of its geometric theoretical position (here horizontal). The end section 10 is thus inclined by an angle α (not shown here) from the horizontal or from a plane parallel to the x-axis with respect to the coordinate system in fig. 1. The direction of inclination is defined here by the deformability of the insulating plate 8a and thus by the cross-sectional geometry of the insulating plate 8 a. Furthermore, a shoulder, not shown here, on the side of the end section 10 of the insulating plate 8a likewise adjoins the

metal profile

2, 4, 6 or, in the installed state of the insulating plate 8a, abuts against the

metal profile

2, 4, 6.

The inclination of the end section 10 or region "B" of the insulating plate 8a is particularly important in combination with the opposite, non-sheared side of the insulating plate 8a, the region of this side being denoted here by the letter "a" and being described in more detail below.

The embodiment of the insulating plate 8B according to fig. 6 corresponds to the embodiment of the insulating plate 8a according to fig. 5 (downwardly open C-shape), but is supplemented by a further shoulder 104, that is to say a shoulder which is arranged laterally to the end section 10 in the region "B". This results in a symmetrical recess 105 which is advantageously suitable, for example, for accommodating foam for additional thermal insulation. In the installed state of the insulating plate 8b, the insulating plate 8b therefore abuts against the

metal profiles

2, 4, 5 or rests between the

shoulders

101, 102 or 104 on the

metal profiles

2, 4, 6, but also has a C-shaped cross-sectional geometry over its entire length, including the two

end sections

10, 13.

Fig. 7 shows an insulating plate 8C having a double C-shaped or Z-shaped cross-sectional geometry between the

shoulders

101, 102 or 104, which shoulders abut the

metal profiles

2, 4, 6 or rest on the

metal profiles

2, 4, 6 in the installed state of the insulating plate 8C. The insulating plate 8c therefore has two recesses 105 and 105' which open alternately upwards and downwards with respect to the plane of the drawing. The overall width "W" also remains in this embodiment of the insulating plate 8c in its proportion to the web width "W". By the cross-sectional geometry of the insulating plate 8C, here selected in the form of a double C or Z, a certain deformability of the insulating plate 8C is ensured.

Fig. 8 shows an insulating plate 8d according to fig. 6. This insulating plate has a recess 105 which is open upward in relation to the plane of the figures of fig. 8 and 6, so that a C-shaped cross-sectional geometry is formed for the insulating plate 8d between the

shoulders

101, 102 or 104, which in the installed state of the insulating plate 8d abut the

metal profiles

2, 4, 6 or the

metal profiles

2, 4, 6, but also over its entire length which includes the two

end sections

10, 13.

Fig. 9 shows an insulating plate 8e according to the version of fig. 8, but this is a particularly preferred embodiment, in which the receptacle 105 is formed by

additional webs

110 and 111 as a receptacle 105 with an undercut cross-sectional geometry. In this way, the accommodation or positioning and fixing of additional components or folding elements can be realized in a simple and thus advantageous manner. Such a component comprises in particular a seal.

Fig. 10 shows a groove 15a in a

metal profile

2, 4, 6 for receiving a rib 13 or a region "a" of an insulating

plate

8a, 8b, 8c, 8d, 8e according to the invention.

The groove 15a is characterized by an abutment area 121 and an abutment area 122, wherein a radius "R" is provided in the direction of the negative y-value in relation to the coordinate system in fig. 1 below the abutment area 122 or starting from the abutment area 122 in relation to the plane of the drawing in fig. 10. The second contact region thus merges into a rounded section having a radius "R". Thus, the radius "R" is below the abutment region 122.

The term "contact region" refers to the region of the groove 15 or 15a in the

metal profile

2, 4, 6 through which the rib 13 passes, in which the

shoulder

101, 102 of the insulating

plate

8a, 8b, 8c, 8d, 8e bears on the

metal profile

2, 4, 6, or in which the

shoulder

101, 102 of the insulating

plate

8a, 8b, 8c, 8d, 8e contacts the

metal profile

2, 4, 6.

The radius "R" corresponds approximately to the sector radius of the sector-shaped bayonet ridge 13. This means that the radius of the rib of the clip strip preferably differs from the radius R of the second contact region by not more than 30%. This allows the insulating

plates

8a, 8b, 8c, 8d, 8e to roll with a radius "R", or the insulating

plates

8a, 8b, 8c, 8d, 8e to perform a rotational movement around the center of the sector of the bayonet ridge 13 having a sector-shaped cross section.

The amount of this rotational movement is here the value of the angle a "of the open side of the slot 15 a. The angle α' in the upper part of the drawing plane or in the positive y-direction in relation to the coordinate system in fig. 1 interacts with the contact region 121 and the shoulder 101. In this way, tolerances of the components to be connected can be compensated for, or component tolerances do not adversely affect the function of the bayonet connection or the slide-guided or shear-free connection. The tolerance is maintained or maintained in relation to the radius "R" and the shoulder 102 in relation to the angle α "in the lower part of the drawing plane or in relation to the coordinate system in fig. 1 in the direction of the negative y-value.

Fig. 11 shows that the insulating plate 8e according to the invention is inserted on one side into the groove 15a of the

metal profile

2, 4, 6. This should be regarded as purely exemplary, so that the following applies reasonably also to the insulating

plates

8a, 8b, 8c, 8 d. It can be seen in fig. 11 that even in the presence of correspondingly large component tolerances, there is sufficient space for simple mounting due to the radius "R", in particular in the negative direction (-) of the angle α. Naturally, the movement of the insulating plate 8e is limited in the positive direction (+) of the angle α, since the insulating plate 8e, when deflected in the positive direction of the angle α, already after a small deflection, rests with its shoulder 101 on the

metal profile

2, 4, 6 at point "P", so that the insulating plate 8e cannot be deflected any further and the existing gap is eliminated for the insulating plate 8 e.

Fig. 12 shows a detail of a profile composite or a composite profile 1 according to the invention in the rolled or mounted state. By rolling, a force F is exerted on the profile webs of the

metal profiles

2, 4, 6. The insulating

plates

8a, 8b, 8c, 8d, 8e according to the invention, of which the insulating plate 8a and the insulating plate 8e are shown here purely by way of example, realize a torque (+) between one another by means of the bevels 103. Without an opposing face (here, second insulating plate 8a), insulating plate 8a is therefore easily bent in the direction of cavity 16 or 17 (at an acute angle with respect to the horizontal direction shown or with respect to a plane parallel to the x-axis of the coordinate system according to fig. 1). This torque corresponds to the torque in the direction (+) according to fig. 12. The ramps 103 are arranged opposite, that is to say alternately, in the double-web arrangement, while the C-shaped openings 105 are arranged pointing in one direction. The C-shaped recess is here arranged to point in one direction, so that its additional function (e.g. accommodating an insulating foam or accommodating a seal) can be utilized. The mounting of the insulating

plate

8a or 8e can also be achieved with a C-shaped recess 105 directed in the opposite direction with respect to the illustration in fig. 12.

The torques cancel each other out, as a result of which an exact profile geometry can be achieved without the large component tolerances required for the installation continuing to have their effect. Component tolerances are almost eliminated by the present invention. In order to achieve a connection without shearing, no or only a small gap is present.

Since the torque cannot be determined or can only be determined very precisely by the rolling process, it is particularly advantageous if the insulating

plates

8a, 8b, 8C, 8d, 8e have a defined deformability on account of their overall C-shaped cross-sectional geometry over their entire length together with the two end sections, but also between their grooves in the metal profile or between the

shoulders

101, 102 or 104, which in the installed state of the insulating

plates

8a, 8b, 8C, 8d, 8e abut or rest against the

metal profiles

2, 4, 6, respectively, on the

metal profiles

2, 4, 6. In this way, it is only possible to prevent a high surface pressure at point "P", which would adversely affect the desired shear strength and could even lead to damage to the connection.

It has proved to be particularly advantageous within the scope of the invention for the following dimensional ratios of the insulating

plates

8a, 8b, 8c, 8d, 8 e: the preferred ratio of the web width "W" to the total width "W" of the insulating

plates

8a, 8b, 8c, 8d, 8e is 0.3 to 0.5, particularly 0.5, and the ratio of the length "U" to the total length "U" of the insulating

plates

8a, 8b, 8c, 8d, 8e is preferably 0.125, particularly 0.25.

List of reference numerals

1 composite section bar

2 first outer section bar

3 hollow cavity

4 second outer section bar

5 hollow cavity

6 middle section bar

7 cavity

8a, 8b, 8c, 8d, 8e insulating plate

9 insulating board

10 end section

11 groove

12 end section

13 card strip bead

14 card strip splicing

15. 15a groove

16 cavity

17 cavity

18 web

19 web

20 groove

21 groove

22 insulating panel

23 clamping strip rib

24 card strip splicing

25 groove

26

27

28

29

30

31 serration

32 teeth

101 shoulder

102 shoulder

103 inclined plane

104 shoulder

105. 105' notch

110 web

111 Web plate

I first insulating plate area

II second insulating plate region

width of w web

Total width of W

u length

Total length of U

Region A

Region B

Force F

Radius R

P point

Angle alpha

Claims

1. Composite profile (1) for door, window or facade elements, comprising

a. At least one first metal profile (2), and

b. at least one second metal profile (4),

c. the first metal profile (2) and the second metal profile (6) are connected in a first insulating plate region I by means of at least one insulating plate (8, 8a, 8b, 8c, 8d, 8e, 22),

it is characterized in that the preparation method is characterized in that,

d. the at least one insulating plate (8, 8a, 8b, 8c, 8d, 8e, 22) comprises at least one end section (12) having a substantially strip-shaped cross section formed by a strip rib (13, 23) and a strip tab (14), and

e. the card bar ridges (13, 23) have a coextruded film or coating on their surface.

2. Composite profile (1) according to claim 1, characterized in that a shear-free connection is formed between one of the metal profiles (2, 4, 6) and the at least one insulating plate (8, 8a, 8b, 8C, 8d, 8e, 22), which at least one insulating plate (8, 8a, 8b, 8C, 8d, 8e, 22) is part of the shear-free connection, which at least one insulating plate has a C-shaped cross-sectional geometry overall over its entire length together with the two end sections (10, 13) but also in its web section between the grooves (11, 15a) of the metal profiles (2, 4, 6).

3. Composite profile (1) according to claim 1 or 2,

g. at least one intermediate metal profile (6) is arranged between the first and the second metal profile (2, 4),

h. the first metal outer profile (2) is connected to the intermediate metal profile (6) in a first insulating plate region I by means of one or more insulating plates (8, 8a, 8b, 8c, 8d, 8e, 22), and

i. the second metal profile (4) is connected to the intermediate metal profile (6) in a second insulating plate region II by means of one or more insulating plates (9, 22),

j. the two insulation panel regions I, II have different shear strengths perpendicular to the cross section of the composite profile (1), and

k. the at least one insulating plate (8, 8a, 8b, 8C, 8d, 8e, 22) has a C-shaped cross-sectional geometry overall over its entire length and the two end sections (10, 1), but also in its web section between the grooves (11, 15a) of the metal profiles (2, 4, 6).

4. Composite profile (1) according to claim 3, characterised in that in one insulation board zone I or II a shear-resistant connection is formed between the elements connected to each other in the insulation board zone, whereas in the other insulation board zone II or I the elements connected to each other in the insulation board zone have a lower shear strength in relation to the aforementioned insulation board zone.

5. Composite profile (1) according to claim 3 or 4, characterised in that in one or both insulation panel regions (I, II) sliding guides are formed between the elements (15, 15a, 8a, 8b, 8c, 8d, 8e, 22) connected to each other.

6. Composite profile (1) according to one of the preceding claims, characterised in that the insulating plate (8, 8a, 8b, 8c, 8d, 8e, 9, 22) has a thickened end section (10) on one or both of its ends.

7. Composite profile (1) according to one of the preceding claims, wherein at least one or more or all end sections (10) have a trapezoidal or triangular or wedge-shaped or L-shaped cross section and each end section (10) engages in a corresponding groove (11) of a respective one of the metal profiles (2, 4, 6).

8. Composite profile (1) according to one of the preceding claims, characterised in that the wall of each groove (11) surrounds the respective end section (10) of the insulating plate (8, 8a, 8b, 8c, 8d, 8e, 9, 22) in a form-fitting manner in the direction of the cross-sectional extension of the composite profile (1).

9. Composite profile (1) according to one of the preceding claims, characterized in that the end sections (10) are glued or screwed into the respective groove (11) by means of wires or are screwed into the groove (11) in a force-fitting and/or form-fitting manner by means of other suitable connecting methods in a direction perpendicular to the cross section of the composite profile (11).

10. Composite profile (1) according to one of the preceding claims, characterised in that at least one of the insulating panels (8, 8a, 8b, 8c, 8d, 8e, 22) of the first insulating panel zone I or of the second insulating panel zone II has the at least one end section (12) with a substantially strip-shaped cross section, which is formed by a strip rib (13) and a strip tab (14).

11. Composite profile (1) according to one of the preceding claims, wherein the snap bead (13) engages in a groove (15, 15a) of one of the metal profiles (2, 4), and the snap bead (14) protrudes from the groove (15, 15a) through a groove opening, the wall of the groove (15, 15a) surrounding the end section (12) of the at least one insulating plate (8, 8a, 8b, 8c, 8d, 8e) with a substantially snap-in cross section in the direction of the cross-sectional extent of the composite profile (1) in a form-fitting manner.

12. Composite profile (1) according to one of the preceding claims, characterised in that the insulating plates (8a, 8b) have a recess (105) which is open in the direction of the negative y-value, so that a C-shaped cross-sectional geometry is obtained for the web section between two metal profiles (2, 4, 6).

13. Composite profile (1) according to one of the preceding claims, characterised in that the insulating plate (8d, 8e) has a recess (105) which is open in the direction of the positive y-value, so that a C-shaped cross-sectional geometry is obtained for the web section between the two metal profiles (2, 4, 6).

14. Composite profile (1) according to one of the preceding claims, characterized in, that the recess (105) is symmetrical.

15. Composite profile (1) according to one of the preceding claims, characterized in, that the recess (105) has an undercut cross-sectional geometry.

16. Composite profile (1) according to one of the preceding claims, characterized in that the insulating plate (8C) has a first (105) and a second (105') open in such a way that a double C-shaped cross-sectional geometry of the web section between the two metal profiles (2, 4, 6) is obtained.

17. Composite profile (1) according to one of the preceding claims, characterised in that the insulating plate (8a, 8b, 8c, 8d, 8e) has an upper shoulder (101) and a lower shoulder (102) on the side with the snap bead (13) for abutting against the metal profile (2, 4, 6).

18. Composite profile (1) according to one of the preceding claims, characterized in that the side of the insulating plate (8a) facing away from the clamping strip or the side with the end section (10) has a bevel (103), the bevel (103) preferably forming an angle of 5 ° to 50 °, particularly preferably 15 ° to 45 °, with the main direction of extension of the insulating plate (8a), which coincides with the x-axis of the coordinate system in fig. 1.

19. Composite profile (1) according to one of the preceding claims, characterised in that the insulating plate (8b, 8d, 8e) has a further shoulder (104) which is arranged on the side facing away from the clamping strip or on the side of the end section (10).

20. Composite profile (1) according to one of the preceding claims, characterised in that the insulating plates (8a, 8b, 8c, 8d, 8e) have a web width "W" and a total width "W" and have a length "U" and a total length "U".

21. The composite profile (1) according to one of the preceding claims, characterized in that the ratio of the web width "W" of the insulating plates (8a, 8b, 8c, 8d, 8e) to the total width "W" is preferably "W"/"W" ═ 0.3 to 0.5, particularly preferably "W"/"W" ═ 0.5, and the ratio of the length "U" of the insulating plates (8a, 8b, 8c, 8d, 8e) to the total length "U" is preferably "U"/"U" ═ 0.125, particularly preferably "U"/"0.25.

22. Composite profile (1) according to one of the preceding claims, wherein the groove (15a) in the metal profile (2, 4, 6) through which the clamping bead (13) passes has a first contact area (121) and a second contact area (122).

23. Composite profile (1) according to one of the preceding claims, wherein the shoulder (101, 102) of the insulating plate (8a, 8b, 8c, 8d, 8e) bears on the metal profile (2, 4, 6) in each contact region (121, 122) of the groove (15a) or the shoulder (101, 102) of the insulating plate (8a, 8b, 8c, 8d, 8e) bears on the metal profile (2, 4, 6) in each of said contact regions.

24. Composite profile (1) according to one of the preceding claims, characterized in that a radius "R" is present on the second contact area (122) in the direction of the negative y-value with respect to the coordinate system in fig. 1.

25. Composite profile (1) according to one of the preceding claims, wherein said radius "R" is substantially equal to the sector radius of the sector-shaped bayonet ridges (13).

26. Composite profile (1) according to one of the preceding claims, characterized in that the end section (12) with a substantially bayonet-type cross section is connected without additional force closure to the groove (15, 15 a).

27. Composite profile (1) according to one of the preceding claims, wherein the snap bead (13, 23) has a circular or non-circular or oval or polygonal cross section.

28. Composite profile (1) according to one of the preceding claims, characterized in that the coextruded film can be configured such that: the film in contact with the groove (15) of the first metal outer profile (2) or with the second metal outer profile (4) or with the groove (25) in the insulating plate (22) has a lower coefficient of friction than the other film or coating sides which are in contact with the insulating plate (8, 22) and are fixedly connected to the insulating plate (8, 22).

29. Composite profile (1) according to one of the preceding claims, wherein the one or more insulating plates (8, 8a, 8b, 8c, 8d, 8e, 9, 22) have a cavity.

30. Composite profile (1) according to one of the preceding claims, wherein the one or more insulating panels (8, 8a, 8b, 8c, 8d, 8e, 9, 22) of each insulating panel region I, II are arranged in one plane or are arranged vertically and/or horizontally offset from each other, respectively.

31. Composite profile (1) according to one of the preceding claims, characterised in that the insulating plate (8, 8a, 8b, 8c, 8d, 8e, 9, 22) is made of a plastic material, preferably a porous plastic material, particularly preferably a foamed plastic material.

32. The composite profile (1) according to one of the preceding claims, characterised in that the first and second metal outer profiles (2, 4) and the metal intermediate profile (6) are configured as metal profiles, particularly preferably as aluminium profiles.

33. Composite profile (1) according to one of the preceding claims, characterized in that the first metal outer profile (2) and/or the second metal outer profile (4) and/or the metal intermediate profile (6) has at least one cavity (3, 5, 7).

34. Window or door or facade element with at least one or more composite profiles (1) according to one of the preceding claims, characterised in that the composite profile (1) is oriented in such a way that it has an insulation board zone with a lower shear strength than the other insulation board zones on the side designed to be oriented towards the outside of the room.