EP2256280A2 - Ladder shaped insulating strip for compound profile for window, door and facade elements - Google Patents

Abstract

The insulating web (10) has a ladder-like insulating body (20) which extends in the longitudinal direction and has two longitudinal edges (21, 22)for fitting with the profiles parts (31, 32) of the profile. One part of the rungs (23) of the body runs transversely to the longitudinal direction between the continuous longitudinal edges. Independent claim describes compound profile with at least two profiled parts and an insulating web connected together secured against shear forces.

Description

The present invention relates to a ladder-shaped insulating web for a composite profile for window, door and facade elements and a composite profile for window, door and facade elements.

Insulating bars for composite profiles for window, door and facade elements and composite profiles for window, door and facade elements are for example from DE 296 23 019 U1 ( EP 0 829 609 B1 ) DE 197 35 702 A1 . DE 298 21 183 U1 ( EP 1 004 739 B1 ) DE 199 56 415 C1 . DE 198 18 769 A1 and DE 198 53 235 A1 known.

From the DE 198 18 769 A1 is known a Isoliersteg, which consists of plastic and an embedded metal insert. The metal insert and the plastic have recesses, which lead to a ladder-like structure of the conductor bar. The metal insert serves to prevent a total failure of the insulating strip in case of fire. The recesses in the metal insert have the purpose of reducing the heat conduction.

It is an object of the invention to provide an insulating web (thermal barrier web) for a composite profile which allows sufficiently high shear stiffness with improved thermal separation, and such an improved composite profile.

This object is achieved by an insulating web according to claim 1, a cover profile according to claim 4 or a composite profile according to claim 5.

Further developments of the invention are specified in the subclaims.

It will specify a composite profile, in particular a metal composite profile, in which the outer profile parts (eg outer shell and inner shell) made of metal, for example, are connected by means of one or more of the insulating webs made of plastic. A relative movement in the longitudinal direction is limited or prevented by the high shear stiffness (expression of the rungs in width, thickness, length, number).

Advantageously, the insulating bars are first made of a suitable material, e.g. manufactured by extrusion as profile parts with constant cross section over the length. The rungs, more specifically the recesses, are then produced by machining such as machining (e.g., milling), cutting (such as laser cutting, water jet cutting, etc.), punching, etc. The reclaimed material can be recycled.

The metal profile parts are firmly and thus captively connected to the insulating bar.

To cover the spaces between the rungs, the insulating bars can be provided with cover profiles or cover sheets. The cover profiles or cover sheets may e.g. clipped, glued, extruded, laminated, etc. It is also alternatively or additionally possible to fill the spaces between the ladder rungs with a material having a lower coefficient of thermal conductivity than the material of the rungs. The function of such cover profiles, etc., on the one hand the protection against the ingress of moisture, on the other hand, the protection of the inner core. The cover profiles or cover sheets can be applied before or after the installation of the doors. With the cover profiles or cover films, the moisture protection can be ensured. In addition, decorative elements can be attached. For example, the cover can be made electrically conductive and thus accept the color of the metal profiles in the powder coating. Also a printing is possible.

One advantage is that the U-values (heat conduction properties) of the insulating bars are not excessively worsened by the attachment of the cover sheets / cover profiles / fillings, in particular the cover profiles.

• Fig. 1 eine erste Ausführungsform eines Isolierstegs, in a) in Draufsicht, in b) im Querschnitt senkrecht zur Längsrichtung entlang der Linie B-B aus Fig. 1a), und in c) im Querschnitt senkrecht zur Längsrichtung entlang der Linie C-C aus Fig. 1a);
• Fig. 2 eine zweite Ausführungsform eines Isolierstegs mit anderer Sprossenbreite in der Fig. 1 entsprechenden Ansichten;
• Fig. 3 eine Querschnittsansicht senkrecht zur Längsrichtung eines Isolierstegs beim Verbinden mit den Innen- und Außenprofilteilen eines Verbundprofils durch Einrollen;
• Fig. 4 eine dritte Ausführungsform eines Isolierstegs mit mäanderförmigen Sprossen der leiterartigen Struktur in einer Fig. 1 a) entsprechenden Ansicht;
• Fig. 5 eine vierte Ausführungsform eines Isolierstegs mit anextrudiertem Deckel in einer Fig. 1 c) entsprechenden Ansicht;
• Fig. 6 eine Modifikation der vierten Ausführungsform;
• Fig. 7 eine fünfte Ausführungsform eines Isolierstegs, in a) im Querschnitt des Isolierstegkörpers senkrecht zur Längsrichtung, in b) im Querschnitt eines anzuclipsenden Abdeckprofils senkrecht zur Längsrichtung, und in c) im Einbauzustand zwischen zwei Metallprofilen im Querschnitt senkrecht zur Längsrichtung; und
• Fig. 8 in den Ansichten a), b) eine sechste Ausführungsform eines Isolierstegs, in a) in Draufsicht senkrecht zur Längsrichtung und b) im Querschnitt senkrecht zur Längsrichtung, in Ansicht c) eine Modifikation der sechsten Ausführungsform im Querschnitt senkrecht zur Längsrichtung, in d) eine siebente Ausführungsform in Draufsicht senkrecht zur Längsrichtung, in e) eine achte Ausführungsform in Draufsicht senkrecht zur Längsrichtung, und in f) eine neunte Ausführungsform in Draufsicht senkrecht zur Längsrichtung;
• Fig. 9 eine zehnte Ausführungsform eines Isolierstegs, in a) in Draufsicht senkrecht zur Längsrichtung und in b) im Querschnitt senkrecht zur Längsrichtung;
• Fig. 10 eine elfte Ausführungsform eines Isolierstegs, in a) in Draufsicht senkrecht zur Längsrichtung, in b) im Querschnitt senkrecht zur Längsrichtung, in c) in einer Modifikation der Querschnittsform senkrecht zur Längsrichtung, in d) einen Querschnitt ohne Ausnehmungen, in e) eine Modifikation der Ausführungsform aus b) mit Füllmaterial, und in f) eine Modifikation der Modifikation aus c) mit Füllmaterial;
• Fig. 11 Modifikationen der sechsten bis neunten Ausführungsformen in entsprechenden Ansichten; und
• Fig. 12 in a) eine Modifikation der Ausführungsform aus Fig. 10 a) und c), in b) und c) Modifikationen der Ausführungsformen aus Fig. 8 und 11, und in d) eine Modifikation der Ausführungsformen aus Fig. 10.

Further features and advantages will follow from the description of exemplary embodiments with reference to the figures. From the figures show:

• Fig. 1 a first embodiment of an insulating web, in a) in plan view, in b) in cross-section perpendicular to the longitudinal direction along the line BB Fig. 1a ), and in c) in cross-section perpendicular to the longitudinal direction along the line CC Fig. 1a );
• Fig. 2 a second embodiment of an insulating web with other rung width in the Fig. 1 corresponding views;
• Fig. 3 a cross-sectional view perpendicular to the longitudinal direction of a Isolierstegs when connecting to the inner and outer profile parts of a composite profile by rolling;
• Fig. 4 a third embodiment of an insulating web with meandering rungs of the ladder-like structure in one Fig. 1 a ) corresponding view;
• Fig. 5 a fourth embodiment of an insulating web with anextrudiertem lid in one Fig. 1 c ) corresponding view;
• Fig. 6 a modification of the fourth embodiment;
• Fig. 7 a fifth embodiment of an insulating web, in a) in cross-section of the Isolierstegkörpers perpendicular to the longitudinal direction, in b) in cross section of a cover profile to be clipped perpendicular to the longitudinal direction, and in c) in the installed state between two metal profiles in cross section perpendicular to the longitudinal direction; and
• Fig. 8 in the views a), b) a sixth embodiment of an insulating web, in a) in plan view perpendicular to the longitudinal direction and b) in cross section perpendicular to the longitudinal direction, in view c) a modification of the sixth embodiment in cross section perpendicular to the longitudinal direction, in d) a seventh embodiment in plan view perpendicular to the longitudinal direction, in e) an eighth embodiment in plan view perpendicular to the longitudinal direction, and in f) a ninth embodiment in plan view perpendicular to the longitudinal direction;
• Fig. 9 a tenth embodiment of an insulating web, in a) in plan view perpendicular to the longitudinal direction and in b) in cross-section perpendicular to the longitudinal direction;
• Fig. 10 an eleventh embodiment of an insulating web, in a) in plan view perpendicular to the longitudinal direction, in b) in cross-section perpendicular to the longitudinal direction, in c) in a modification of the cross-sectional shape perpendicular to the longitudinal direction, in d) a cross section without recesses, in e) a modification of the embodiment of b) with filler material, and in f) a modification of the modification of c) with filler material;
• Fig. 11 Modifications of the sixth to ninth embodiments in corresponding views; and
• Fig. 12 in a) a modification of the embodiment Fig. 10 a) and c), in b) and c) Modifications of the embodiments Fig. 8 and 11 , and in d) a modification of the embodiments Fig. 10 ,

In the in the Fig. 1 . 2 As shown insulating strips run the rungs 23 of the ladder-like Isolierstegkörpers 20 between the continuous longitudinal edges 21, 22 transversely to the longitudinal direction Z. These can also be slightly inclined (up to about 20 °) to the transverse direction. The sprouts can also have a curved shape. Preferably, but not necessarily, all sprouts have the same shape.

The longitudinal edges or edges 21, 22 are for (in the longitudinal direction z) shear-resistant connection with profile parts 31, 32 (see Fig. 3 ) of the composite profile. In the embodiment shown, the longitudinal edges or edges 21, 22 are formed as curling heads 25 or curl projections for curling in grooves of the profile parts 31, 32, which are each formed by a rolling hammer 33 and opposite wall portion 34. Other types of connections such as gluing, etc. are also possible.

In a plan view, the rungs 23 have a width b in the longitudinal direction z, which is selected depending on the required transverse tensile strength and the required transverse stiffness and the material used and in the range of 0.5 to 10mm, preferably, 1mm to 5mm, more preferably 1mm to 3mm is up. In a cross-section perpendicular to the longitudinal direction, the rungs have a height (thickness) h (in the direction y) which is selected depending on the required transverse tensile strength and the required transverse rigidity and the material used and in the range of 0.5 mm to 10 mm, preferably 0.5mm to 5mm, more preferably 0.7mm to 2mm. The rungs 23 are arranged in the longitudinal direction z at regular intervals d between them, which distances are in the range of 1mm to 100mm, preferably 1mm to 50mm, more preferably 1mm to 5mm, and more preferably 1 to 3mm.

Of course, other widths, thicknesses, lengths, and distances are possible depending on the requirements.

First test results were obtained from ladder-type insulating bars with rungs which had a width b of 1 mm in the longitudinal direction of the insulating strip in a first embodiment and 3 mm in a second embodiment and in each case regular intervals d of about 3 mm in the longitudinal direction of the insulating bar , The rungs had in plan view in the direction transverse to the longitudinal direction of the Isolierstegs a length c of about 14mm long with a total dimension a of the insulating bar in this direction of about 23mm. The Isolierstege showed values for the transverse tensile strength (train in the direction of connecting the connected by means of the insulating web profile parts, ie in Fig. 1 . 2 in direction x), which is higher for both rungs widths than for comparable profiles DE 199 56 415 C1 were, and for the shear strength (against displacement of the connected by means of the insulating web profile parts in the longitudinal direction z of the profile parts, ie in Fig. 1 . 2 in the longitudinal direction Z), simply by selecting the bar width to values below or above the values for comparable profiles DE 199 56 415 C1 could be adjusted, so that the degree of longitudinal displacement at very high transverse tensile strength is easy to assemble. These webs were designed to ensure a longitudinal displacement, so that the so-called bimetallic problem is reduced.

Fig. 4 shows a third embodiment of an insulating web with meandering rungs of the ladder-like structure in one Fig. 1 a) corresponding view.

At the in Fig. 5 shown fourth embodiment of a Isolierstegs an anextrudierter cover (cover profile) 40 is provided to cover the spaces between the rungs. in a Fig. 1 c) corresponding view. The cover is formed integrally with the web. The cover profile is viewed in a cross section perpendicular to the longitudinal direction z as a lid on one side of the rungs (seen in the x direction) and its free end (edge) is clipped on the other side of the rungs (seen in the x direction). The clip connection is designed so that the clipping takes place in the vertical direction (y-direction).

In an alternative embodiment, the in Fig. 6 4, the clip connection is made different so as to be clipped obliquely to the height direction (y direction), and a traction force in the transverse direction (x direction) holds the clip in engagement.

At the in Fig. 7 shown fifth embodiment, the Isolierstegkörper 20 on the rungs 23 with clip heads (male clip parts) 28 is provided. These are arranged so that in the vertical direction y on one side of a clip head 28 and on the other side two clip heads 28 are arranged. In this case, the single clip head 28 is arranged in the transverse direction x centered on the rung, while the other two clip heads are arranged on the other side with an identical distance from the center.

The clip heads are in each case by a height h ₃ with respect to the remaining surface of the rungs 23 of the Isolierstegkörpers 20 before. The sum of the thickness h ₁ in the height direction y and twice the projection h ₃ is preferably identical to the thickness of the curl heads 25 in the vertical direction y.

In the fifth embodiment, a cover (cover profile) 40 is formed so that it has on one side three clip receptacles (female clip parts) 48, of which the two outer have the same distance as the two located on one side of Isolierstegkörpers 20 clip heads 28 and the third clip recording is arranged centrally between them. As is clear from the Fig. 7 Without further ado, such covers can be clipped on both sides of the Isolierstegkörpers 20 without differently shaped lid are necessary. The Isolierstegkörper 20 has over a width a ₁ in the transverse direction x to a substantially constant thickness h ₁ . The width a _{2 of} the lid 40 in the transverse direction x is smaller than or equal to this width a _{1 of} the Isolierstegkörpers 20th

The cover has contact lips 42 formed on its edges running in the longitudinal direction Z in the transverse direction x. The clip receptacles (female clip parts) 48 have a distance h ₄ from the bottom of the clip receptacle in the height direction y to the outermost point of the clip receptacle, which is smaller than the height h _{3 of} the clip heads 28. The lips 42 end in the vertical direction y at the height level of the clip recordings 48 or slightly higher (see also Fig. 7c) ).

As a material for the insulating web advantageously plastic with an E-modulus greater than 2000 N / mm ^{2 is} used. Suitable plastics are polyamide, polyester or polypropylene, for example PA66.

The thickness h _{1 of} the Isolierstegkörper all embodiments is in the range of 1 mm to 50 mm, preferably 1 mm to 10 mm, more preferably 1 mm to 2 mm, more preferably 1.4 to 1.8 mm. The thickness h _{2 of} the cover is preferably less than or equal to the thickness of the associated Isolierstegkörpers.

The in the Fig. 5 and 6 The embodiment shown is well suited for smaller values of a in the range of 8 to 20 mm, for example 14 mm. The thickness h ₁ is then preferably 1.4 mm, for example. The embodiment according to Fig. 7 is well suited for values of a in the range of 20 to 40 mm, eg 32 mm. In this case, the preferred thickness h _{1 is} in the range of 1.5 to 1.8 mm. For the indicated widths and material thicknesses PA66 is preferred as the material.

Since the Isolierstegkörper consist of plastic, have no metal insert, i. they are formed without metal insert.

In Fig. 8 a) is shown in a plan view perpendicular to the longitudinal direction defined in terms of shear strength embodiment. The insulating web has a width a in the x direction in the range 10 mm ≦ a ≦ 100 mm. The insulating web has in the height direction (thickness direction) y through the material of the web passing through recesses 24. The shape of the recesses is substantially triangular in plan view, with corners having an inner radius of radius R. The height of the triangles in the transverse direction x is c. The triangles are arranged alternately. This means in the plan view in Fig. 8 a) Each longitudinal side of a triangle is alternately arranged in parallel near the left side, then on the right side, then again on the left side, and so on. It follows that the tips are arranged alternately. Between the triangles are rungs 23 which have a width b perpendicular to the sides of the triangles delimiting them. The triangles are removed by a distance e from the respective outer edges in the transverse direction x. It follows that a = c + 2e. The insulating web has in height direction y a height (thickness) h over its entire width, except for the curling heads 25 on. The values are selected as follows. For Isolierstege with a <22mm c is in the range of 7 to 10, preferably 8mm. The radius R is <2mm, preferably <1mm, more preferably 0.5mm. The radius serves to avoid a notch effect and also the formation of a kind of bending joint. The width b of the rungs is 1 to 3mm, preferably 2mm.

For webs with a ≥ 22mm, c is in the range of 8 to 18mm, preferably 12mm. The height h in the vertical direction y is 1.2 to 2.4 mm, preferably 1.8 mm. The bridge is made of PA66GF25.

Fig. 8c) shows a modification of the sixth embodiment in cross section, in which the course of the web between the two curl heads is not rectilinear, as in Fig. 8b) is.

Fig. 8d) shows a seventh embodiment. The seventh embodiment differs from the sixth embodiment in that the recesses are not substantially triangular but substantially rectangular. The cross section perpendicular to the longitudinal direction, as in the Fig. 8b) or c) be shown. The dimensions for a, b, c, e or R to the sixth embodiment also apply to the seventh embodiment. The dimension d, ie the extent of the recesses in the longitudinal direction z is in the range of 3 to 8 mm, preferably 5 mm. This dimension d also applies to the preferred maximum extent of the triangular recesses in the sixth embodiment, even if the dimension d in Fig. 8 a) not shown.

Fig. 8e) shows an eighth embodiment. The eighth embodiment differs from the sixth and seventh embodiments in that the recesses are circular with a diameter of dimension c. Fig. 8 f) shows a ninth embodiment, which differs from the sixth and seventh embodiments in that the recesses are hexagonal. The remaining details of the sixth and seventh embodiments apply, as applicable, also for the eighth and ninth embodiments.

Fig. 9 shows in a) in plan view perpendicular to the longitudinal direction and in b) in cross section to the longitudinal direction of an insulating web with a so-called package construction. This package construction is intended to be used in a composite profile, as exemplified in Fig. 7c) shown in cross-section to be installed. The four curl heads 25 are doing in the corresponding rolled up four shots, as is clear from the comparison with the Fig. 7 is readily apparent. This in Fig. 9b) upper insulating web portion 20a is in Fig. 7c) above and in Fig. 9b) lower Isolierstegteil 20b is in Fig. 7c) rolled up below. The two Isolierstegteile are connected by a clipped connection piece 20c so that on the one hand a shield against convection and radiation between the inside and outside of the composite profile is achieved, and on the other hand, a plurality of hollow chambers 20d are formed. The hollow chambers 20d are divided by a diagonal strut 20e of the connecting part 20c in the vertical direction y. As in Fig. 9 a) can be clearly seen, recesses 24 may be formed with a width in the transverse direction x and in a longitudinal extent d in the longitudinal direction z one or more Isolierstegteile 20a, 20b and / or the connecting part 20c. The Isolierstegteile 20a and 20b shown in Fig. 9 d) each have outwardly directed projections 20f, which can form receptacles for rubber seals and / or fitting parts. These are not an essential part of the embodiment shown. The number of recesses and the width and length of the recesses is not on the in Fig. 9 a) shown limited arrangement.

In the Fig. 10 embodiment shown with modifications shows a so-called hollow chamber profile. In such a hollow chamber profile is located in the transverse direction x between the Einrollvorsprüngen 25 hollow chambers. In Fig. 10d) the cross section of a conventional hollow chamber profile is shown. As is apparent from the comparison with the cross section of the eleventh embodiment in FIG Fig. 10b) readily results, the difference is essentially that in the middle hollow chamber between the rungs 23, the wall is removed, so recesses 24 are formed. The recesses have a width g in the transverse direction x and a longitudinal extent d in the longitudinal direction z. In particular, for hollow chamber profiles with a width a of ≥ 25mm, the information on c) of the sixth to ninth embodiments can also be used for g). In the modifications in Fig. 10c) a recess 24 is formed only on one side of the hollow chambers. According to the modifications made in Fig. 10 e) and f) is shown, the part of the hollow chamber profile in which one or more recesses 24 are formed, filled with a foam as filler. This foam is preferably a pure foam, which has a lower coefficient of thermal conductivity than the material formed to form the Isolierstegkörpers.

The Fig. 11 a) to f) show modifications of the sixth to ninth embodiments in views with the same numbering a) to f), in each of which a projection 28 is formed, which protrudes substantially in the height direction y starting from the Isolierstegkörper. Namely, this projection 28 serves to hinder convection and radiation. The height of the projection 8 in the height direction y is selected accordingly. In Fig. 7c) dashed lines the installation of an insulating bar with such a projection 28 is indicated. If the in Fig. 7c) Upper insulating web has one or more corresponding projections 28, which seen in the transverse direction x overlap with the lower projection 28, then a particularly effective obstruction of the convection and radiation is achieved. The Fig. 12 b), c) and d) show modifications of Isolierstegen with two such protrusions 28th

All in the 8 to 12 Embodiments shown are preferably with anextrudierten lids of in Fig. 5 . 6 shown type or even more preferably with clip projections and / or clips recordings in Fig. 7 shown provided type. Alternatively, it is also possible to provide foils to cover the recesses or to perform a foaming with a material of lower thermal conductivity than the material of the Isolierstegkörper. Preference is given to the at least partially or completely clipped lid or possibly films.

As the material for the Isolierstegkörper come hard PVC, PA, PET, PPT, PA / PPE, ASA, PA66 in question, and PA66GF25 is preferred. Suitable foams are foams made of thermosetting plastics such as PU with the appropriate density, preferably foams of low density (0.01 to 0.3 kg / l).

Earlier applications of ladder-type profiles aimed to achieve low shear strength (high longitudinal mobility). In another application, recesses have been provided only to reduce heat conduction in a known highly conductive metal insert.

In the preferred embodiments with partially extruded and clipped on the other side, in the most preferred embodiments with fully clipped lids, and also in the embodiments with glued or laminated foils, each for covering the recesses, has been clipped in particular for the wholly or partially clipped Cover surprisingly found that these are the so-called U-values, ie only slightly affect the heat separation properties of the insulating bars against uncovered versions. So have attempts with a massive bridge with a cross section of in Fig. 8b) shown, ie a web without recesses, which had a width of 25mm and a height h of 1.8mm and as the material PA26GF25, a U-value (W / m ² K) of 2.4 result.

An insulating bar of in Fig. 8d) shown type with c = 8mm and d = 5mm and b = 2mm resulted without cover a U-value 2.15 W / m ² K. A corresponding bridge with according to Fig. 7 clipped covers had a U-value of 2.25 W / m ² K. The measurements were carried out in a so-called "hot box", with a system with 25mm wide, flat insulating bars was used as the starting system, which was not in the experiment were exchanged. In reality, the U-value improvements should be even better.

Although the reason of this effect is not very clear, it probably lies in the design of the clip connections and thus the strongly impeded heat transfer path through the lid.

For those in the Fig. 9 . 10 shown embodiments with hollow chambers, which are already used for systems with very good insulation properties, these properties can be further improved. Using convection and / or radiation shielding protrusions 28 also increases the effect.

It is explicitly pointed out that all features disclosed in the description and / or the claims are considered separate and independent of each other for the purpose of original disclosure as well as for the purpose of limiting the claimed invention independently of the feature combinations in the embodiments and / or the claims should. It is explicitly stated that all range indications or indications of groups of units disclose every possible intermediate value or subgroup of units for the purpose of the original disclosure as well as for the purpose of restricting the claimed invention, in particular also as the limit of a range indication.

aspects:

1. An insulating web (10) for a composite profile (1) for window, door and facade elements, comprising an insulating web body (20) extending in a longitudinal direction (Z) and at least two longitudinal edges (21, 22) in a Transverse direction (X) are separated by a distance (a) from each other, which are adapted to the shear-resistant connection with profile parts (31, 32) of the composite profile (1) by one or more walls of the Isolierstegkörpers (20) in a height direction ( Y) passing through recesses (24), which are separated by ladder-like webs (23) in the longitudinal direction (Z), which is formed for at least partially clipping a cover profile (40).
2. 2. An insulating bar according to claim 1, on at least one side in the height direction (Y) projecting clip heads (28) and / or in the height direction (Y) extending recesses having clip receptacles (48).
3. 3. insulating web according to claim 1 or 2, wherein a cover profile (40) seen in the transverse direction (X) on one side of the recesses on the Isolierstegkörper (20) is extruded, and seen in the transverse direction (X) on the other side of the recesses the Cover profile (40) and the Isolierstegkörper (20) are adapted to the clip connection.
4. 4. cover profile (40) for a Isolierstegkörper according to claim 2, which has a width (a ₂ ) in the transverse direction, which is smaller than the width (a ₁ ) of the insulating web to the clip heads (28) and / or clip receptacles (48 ) Complementary clip heads (28) and / or clip receptacles (48) for clipping the lid to the insulating web, and in the longitudinal direction (Z) extending bearing lips (42).
5. 5. Composite profile for window, door and facade elements with at least two profile parts (31, 32) and at least one Isoliersteg according to one of claims 1 to 9, wherein the profile parts (31, 32) shear-resistant with the / the insulating bar (s) (10) are connected.
6. 6. Composite profile according to claim 5, wherein the insulating web is formed according to claim 2, with at least one cover profile (40) according to claim 4.

Claims (3)

An insulating web (10) for a composite profile (1) for window, door and façade elements, comprising an insulating web body (20) extending in a longitudinal direction (Z) and at least two longitudinal edges (21, 22) arranged in a transverse direction (FIG. X) are separated by a distance (a) from each other, which are adapted for shear-resistant connection with profile parts (31, 32) of the composite profile (1) as a curl body (25) for rolling in grooves of the profile parts (31, 32), characterized by one or more walls of the Isolierstegkörpers (20) in a height direction (Y) passing through recesses (24), which are separated by ladder-like webs (23) in the longitudinal direction (Z), characterized in that the insulating web (10) clipped on to a covering (40) is thereby formed to at least one side in the height direction (Y) protruding clip head (28) and / or in the height direction (Y) extending recesses having clip retainers (48) having. A barrier strip (40) for an insulating bar according to claim 1 having a width (a ₂ ) in the transverse direction that is smaller than the width (a ₁ ) of the Isolierstegkörpers (20), the clip heads (28) and / or clip holders ( 48) has complementary clip heads (28) and / or clip receivers (48) for clipping the cover profile on the insulating web, and which has in the longitudinal direction (Z) extending contact lips (42). Composite profile for window, door and facade elements with at least two profile parts (31, 32) and at least one insulating web according to claim 1 and at least one cover profile (40) according to claim 2, which is clipped to the insulating web, in which the profile parts (31, 32) are shear-resistant connected to the / the insulating web (s) (10).

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