EP1215360B9 - Composite profile - Google Patents

Description

The invention relates to a composite profile, in particular for Windows, doors and façade elements, with an external profile an inner profile and two insulating elements, wherein the outer profile and the inner profile through the two Insulating elements are interconnected and wherein a cavity is formed between the insulating elements, wherein each of the two insulating elements at one end a Mounting foot for attachment to the outer profile and at the opposite end a mounting foot for having the attachment to the inner profile, wherein these Fastening feet of the insulating elements shear-proof rolled are, wherein the composite profile continues in the cavity has at least one Isolierdiagonalelement, the obliquely is arranged to the two insulating elements and wherein in ready-to-install state of the insulating at least one End of Isolierdiagonalelementes integrally formed on one of the insulating elements (4,5) is formed and wherein this Insulating element only a Isolierdiagonalelement is integrally formed. - Such a composite profile, for example on windows, doors or facade elements is used for Thermal insulation. The outer profile and the inner profile exist usually made of a metal, in particular aluminum, while the insulating or between external profile and inner profile arranged insulating webs of a Plastic exist. The insulating elements or insulating bars cause the thermal separation of outer profile and Internal profile.

Efforts are made in such composite profiles an optimal to achieve thermal insulation and at the same time a sufficient shear strength of the composite and a optimal transverse tensile strength and spring stiffness safely put. The further thermal improvement leads to Broadening of the insulating zone with ever thinner insulating bars with the result that the mechanical properties, in particular the shell offset and the ability to install leave the permissible tolerance range for the function. This can cause visual defects, for example on windows result. Furthermore, due to the tolerance problems Gasket pairings disengaged and then is Often the windproofness is no longer guaranteed.

A composite profile of the type mentioned, of which the Invention is known from EP 0 172 575 A2. at This composite profile is the outer profile with the Internal profile connected via two individual insulating bars. Between the insulating bars a cavity is provided, in the later one diagonally to the insulating bars arranged Isolierdiagonalelement be inserted can. For this purpose, the two insulating bars corresponding Guide rails on. It is also possible various angular positions of the Isolierdiagonalelementes to realize. An exact subsequent insertion the Isolierdiagonalelementes is difficult. At the Insertion often leads to constraints, for example an undesirable tilting of the Isolierdiagonalelementes. A functionally reliable and solid composite of the elements leaves often do not realize themselves. Incidentally, the shear resistance leaves to be desired and an undesirable shell offset can not be effectively prevented. The inserted one Isolierdiagonalelement thus often does not meet the function of a stabilizing element.

From DE 195 30 349 C1 is a composite profile for a Wing frame known in which the outer profile and the Inner profile by a single insulating bar with each other are connected, which is designed as a hollow chamber web. Outside profile side, this hollow chamber web has a single wide mounting foot. Inner profile side are two arranged at a defined distance from each other Fixing feet provided in the corresponding Recess chambering of the inner profile intervene. The production This insulating bar is expensive because of the arrangement the mounting feet are to be kept tight tolerances, so that the insulating bar easily into the inner profile and External profile can be introduced. In this known composite profile due to the design of the insulating web in Incidentally, the shear strength and the tolerance to wish you left.

DE 195 13 836 A1 discloses a composite profile for a Wing frame described, which is also in the form of a one-piece hollow chamber web is formed. This Hollow chamber web has two parallel insulating elements, in the manner of a truss structure over two oblique Insulating elements are interconnected. Also with this known composite profile are in the production in consuming Way to comply with very tight tolerances, thus one reliable connection between the insulating bar and the External profile or the inner profile can be created.

A shell offset can in this known composite profile occur relatively easily.

In contrast, the invention is the technical problem based, a composite profile of the type mentioned indicate that sufficient thermal insulation guaranteed and with regard to shear resistance, Transverse tensile strength and spring stiffness to all requirements is enough and at the same time minimizes the shell offset and nonetheless in a simple and inexpensive way can be produced and assembled.

To solve this technical problem, the invention teaches a composite profile, in particular for windows, doors and facade elements, with an outer profile, an inner profile and at least two insulating elements,
wherein the outer profile and the inner profile are connected to one another by the two insulating elements and wherein a cavity is formed between the insulating elements,
wherein each of the two insulating elements at one end has a mounting foot for attachment to the outer profile and at the opposite end a mounting foot for attachment to the inner profile, said four separate mounting feet of the insulating elements are shear-resistant,
wherein the composite profile further comprises in the cavity at least one Isolierdiagonalelement which is arranged obliquely to the two insulating elements
and wherein in the ready-to-install state of the insulating elements at least one end of the Isolierdiagonalelementes is integrally formed on one of the insulating elements and wherein only an Isolierdiagonalelement is integrally formed on this insulating element.

The outer profile and / or inner profile is expediently made of metal, preferably of aluminum. It is located in Frame of the invention that the insulating elements and / or the at least one Isolierdiagonalelement of a heat-insulating Material, preferably made of plastic, exist. According to the invention, the four mounting feet of the two Insulating elements shear-resistant rolled up in the inner profile. Shearproof means within the scope of the invention that when rolling the insulating with a corresponding Curling device fixing elements attached to the outer profile or are connected to the inner profile, so deformed or bent over, that the mounting feet form fit received on the inner profile or on the outer profile and as it were from the fixing elements be trapped. This results in a shear resistant Composite.

According to a preferred embodiment of the invention the two insulating elements arranged parallel to each other. In particular, mutually parallel insulating elements means that at least 60%, preferably at least 70%, preferably at least 80% of the lengths of the two insulating elements have a parallel course. parallel Course means in the context of the invention, a substantially parallel course of the two insulating elements. So It is within the scope of the invention that the orientation of the two insulating elements at an angle of 0 ° to 4 ° of deviates from the exact parallel arrangement. Preferably comprises the term parallel also the latter embodiment.

Preferably, an inventive insulating in Cross-section formed linear or substantially linear. At the two opposite ends of the insulating is in each case a mounting foot for attachment to the External profile or provided on the inner profile. Conveniently, is at least one mounting foot of the Insulating dovetailed. To preferred embodiment of the invention are both Fixing feet of an insulating dovetailed educated. A preferred embodiment of Invention is characterized in that the Isolierdiagonalelement with one of the insulating one Angle α less than 60 °, preferably is less than 50 °. After another preferred Embodiment of the invention, this angle α is smaller as 45 °, preferably less than 40 °. - After very much preferred Embodiment of the invention extends the Isolierdiagonalelement over at least 80% of the length of one of the parallel Insulating elements through the cavity. Length of one Insulating element here means the extension of the insulating from the outer profile to the inner profile. After the latter embodiment of the invention would therefore a projection of the Isolierdiagonalelementes on the insulator concerned at least 80% of the length of these Cover insulating element. Appropriately, this runs Isolierdiagonalelement over at least 80%, preferably at least 90% of the distance between the outer profile and the inner profile through the cavity. In other words the Isolierdiagonalelement preferably extends over the entire distance or over almost the entire distance between outer profile and inner profile through the cavity.

According to one embodiment of the invention, the insulating diagonal element at least one mounting foot for Attachment to the outer profile or for attachment to the Inner profile on. Thus, according to this embodiment Isolierdiagonalelement with one end in one piece to a formed of the insulating and with the other end over said mounting foot on the outer profile or on attached to the inner profile. The mounting foot is included expediently dovetail-shaped and fits in a complementary recess of the outer profile or the inner profile. It is within the scope of the invention that one of the insulating elements together with the integral therewith Isolierdiagonalelement, the with its other end over a mounting foot to the External profile or inner profile is attached, an in Cross-section V-shaped insulating web forms. Conveniently, the second insulating element then forms a second, in cross-section linear or in cross-section I-shaped Insulating web.

According to another preferred embodiment of the invention is the Isolierdiagonalelement in the ready to install Condition of the insulating elements with each of its two ends integrally formed on each one of the insulating elements. It is within the scope of the invention that the two Insulating with the insulating diagonal element connecting them a single cross-sectionally Z-shaped insulating web form.

According to another preferred embodiment of the invention a second insulating diagonal element is provided which is arranged obliquely to the two insulating elements and in Ready-to-install state of the insulating is at least an end of this second Isolierdiagonalelementes integrally formed on one of the insulating elements. It is in the frame the invention that of this latter insulating only this one Isolierdiagonalelement in one piece is formed.

According to one embodiment, the second insulating diagonal element a mounting foot for attachment on the outer profile or on the inner profile. It lies in the context of the invention that the insulating with the integrally formed thereon second Isolierdiagonalelement forms a cross-sectionally V-shaped insulating web.

An embodiment of the invention is characterized that the first Isolierdiagonalelement with the first of the insulating a first contiguous Insulating web forms and that the second Isolierdiagonalelement with the second of the insulating a second forms a continuous insulating bridge. Preferably according to this embodiment, two in cross-section V-shaped Isolierstege realized. - According to another embodiment The invention is the one end to the Insulating element integrally formed Isolierdiagonalelement at its other end via a transverse to the insulating element arranged connecting element with the insulating element connected. Transversely arranged means within the scope of the invention on the one hand, that the insulating element and the thereto connected fasteners an angle of 90 ° or form an angle of about 90 °. Transverse means but also that the insulating element and the connecting element an angle of 60 ° to 120 °, preferably of 70 ° to 110 °, very preferably from 80 ° to 100 °.

The invention is based on the finding that with a inventive composite profile initially optimal thermal insulation is achieved and nonetheless achieved very advantageous mechanical properties become. The truss structure of the invention Insulating or insulating bars essentially has only still tensile and / or compression struts on. By the invention Arrangement and training will provide optimal shear resistance and achieved spring stiffness. So can the Value of shear strength and value of spring stiffness compared to the above-described from the state The technology known composite profiles by at least one Third raised. In the inventive Composite profile occurs due to curling Cup offset as good as not up. Also mistakes by a subsequent stoving could arise, be complete with the composite profile according to the invention avoided. It should be emphasized that the inventive Composite profile nonetheless on simple and little elaborate manner can be manufactured and assembled. in the Result will be in connection with the so far known composite profiles described disadvantages in the Compound profile according to the invention effectively avoided. A thermal insulation or thermal insulation is with the composite profile according to the invention realized functionally reliable, without any additional measures or elements, such as additional convection brakes and radiation brakes or Insertion elements made of insulating material only at extremely high thermal requirements are required.

It is within the scope of the invention that at a larger Distance between the two insulating profiles, like him For example, occurs at wing elements, in particular in cross section Z-shaped insulating webs between the outer profile and the inner profile are provided. It can other functional elements such as stop hollow chambers, stop lugs, Integrated rubber receiving grooves and the like be. - At a greater distance between the two Insulating profiles, it is often useful, a division to choose in two separate insulating bars and for example a cross-sectionally V-shaped insulating web and a in Provide cross section I-shaped insulating web. Here is it is also within the scope of the invention, two in cross-section V-shaped Insulating bars to combine with each other.

Fig. 1

einen Querschnitt durch ein aus dem Stand der Technik bekanntes Verbundprofil,

Fig. 2

einen Querschnitt durch eine erste Ausführungsform eines erfindungsgemäßen Verbundprofils,

Fig. 3

einen Querschnitt durch zwei erfindungsgemäße Verbundprofile,

Fig. 4

eine weitere Ausführungsform eines erfindungsgemäßen Verbundprofils,

Fig. 5

den Gegenstand nach Fig. 3 in einer zusätzlichen Ausführungsform,

Fig. 6

den Gegenstand nach Fig. 3 in einer weiteren Ausführungsform und

Fig. 7

eine andere Ausführungsvariante eines erfindungsgemäßen Verbundprofils.

The invention will be explained in more detail with reference to a drawing showing only one embodiment. In a schematic representation:

Fig. 1

a cross section through a known from the prior art composite profile,

Fig. 2

a cross section through a first embodiment of a composite profile according to the invention,

Fig. 3

a cross section through two composite profiles according to the invention,

Fig. 4

a further embodiment of a composite profile according to the invention,

Fig. 5

the article of Fig. 3 in an additional embodiment,

Fig. 6

the article of Fig. 3 in a further embodiment and

Fig. 7

another embodiment of a composite profile according to the invention.

In Fig. 1 is known from the prior art Composite profile 1 shown. This known composite profile 1 consists of two independent, in the embodiment mutually parallel insulating 4.5. Between parallel insulating 4, 5 is a cavity. 6 educated. The two insulating elements 4, 5 have on each of their ends a mounting foot 7, 8, with which they are in each case complementary Auskammerungen of the Surround outer profile 2 and the inner profile 3. In the Fig. 1 drawn with solid lines insulating 4, 5 represent the state of the composite profile 1 after the Rolling dar. In contrast, the dash-dotted lines the insulating elements 4, 5 after an undesirable Shell offset that occurs, for example, after painting. Such a shell offset is intended according to the invention be minimized.

Figs. 2 to 7 show embodiments of an inventive Composite profiles 1, that in particular for Windows, doors, facade elements and the like used becomes. The composite profile 1 has an outer profile 2 and a Inner profile 3 on. The outer profile 2 and the inner profile 3 are in the embodiments of FIGS. 2 to 7 in each case by two insulating elements 4, 5 with each other connected and between these insulating elements 4, 5 is a Cavity 6 is formed. According to a preferred embodiment and in the embodiment, the two insulating elements 4, 5 arranged parallel to each other. Each of the two parallel insulating elements 4, 5 has at one end a mounting foot 7 for attachment to the outer profile 2 and at the opposite end a mounting foot 8 for attachment to the inner profile 3. These mounting feet 7, 8 of the insulating elements 4, 5 are expediently and in the embodiment dovetailed educated. The mounting feet 7, 8 hold preferred and in the embodiment in each case Complementary Auskammerungen of the outer profile 2 and the Inner profile 3 a. The mounting feet 7, 8 are according to the invention on the outer profile 2 and on the inner profile. 3 shear-resistant rolled up. In the figures, fixing elements 20 the outer profile 2 and the inner profile 3 can be seen, the were rolled up during the rolling process so that the complementary Auskammerungen for the mounting feet 7, 8th yield and the mounting feet 7, 8 as it were shear-resistant be trapped.

According to the invention in the cavity 6 is a Isolierdiagonalelement 9 provided obliquely to the two parallel Insulating elements 4, 5 is arranged. In ready to install State of the insulating elements 4, 5 is at least one end 10 the Isolierdiagonalelementes 9 in one piece on one of Insulating elements 4, 5 integrally formed. According to the invention is on this insulating 4, 5 only a Isolierdiagonalelement 9 integrally formed. Preferably and in the embodiment includes the Isolierdiagonalelement 9 with one of the insulating elements 4, 5 an angle α, the is less than 50 °. Appropriately, and in the embodiment the Isolierdiagonalelement 9 over at least 80% of the length of one of the insulating elements 4, 5 through the cavity 6. The term length here means the Extension of the insulating element 4, 5 in the direction of Distance a between the outer profile 2 and the inner profile 3. In Fig. 2 it can be seen that the dash-dotted lines drawn projection of the Isolierdiagonalelementes 9 the insulating member 5 80% of the length of this insulating element 5 exceeds and thus the Isolierdiagonalelement 9 via at least 80% of the length of the insulating element 5 through the Cavity 6 runs. - Preferably and in the embodiment the Isolierdiagonalelement 9 extends over at least 80%, preferably over at least 90% of the distance a between the outer profile 2 and the inner profile. 3

Fig. 2 shows a first embodiment of an inventive Composite profile 1. Here is the Isolierdiagonalelement 9 in the ready-to-install state of the insulating elements 4, 5 with each of its two ends 10, 11 at each of the Insulating 4, 5 integrally formed. In the Embodiment of Fig. 2 form the insulating elements 4, 5th with the Isolierdiagonalelement 9 a cross-sectionally Z-shaped Insulating bar 12.

Also in the embodiment of FIG. 3 is in the upper Composite profile 1 a cross-sectionally Z-shaped insulating web 12 provided, but to the lower insulating 5 further functional elements 13 not described in detail are connected. - In the lower composite profile 1a in Fig. 3, the Isolierdiagonalelement 9 a mounting foot 14, with which it is attached to the outer profile 2 is. In the embodiment of FIG. 3, the upper forms Insulating 4 with the Isolierdiagonalelement 9 a in Cross-section V-shaped insulating bar 15. The lower composite profile 1a has two separate insulating webs 15, 16, namely, on the one hand said V-shaped insulating web and on the other hand, a second cross-section I-shaped Insulating bridge 16, of the lower insulating 5 of the Composite profile 1a is formed.

In the embodiments of FIGS. 4 to 6 is a second Isolierdiagonalelement 17 is provided, which also is arranged obliquely to the two insulating elements 4, 5 and in the ready-to-install state of these insulating elements 4, 5 is at least one end 10 of this second Isolierdiagonalelementes 17 in one piece to one of Insulating elements 4, 5 integrally formed. In the embodiment according to Fig. 4, the second Isolierdiagonalelement 17 a Mounting foot 14 on, with this second Isolierdiagonalelement 17 attached to the outer profile 2 is. Preferably, the mounting foot 14 is shear-resistant has been rolled on the outer profile 2. The composite profile 1 According to Fig. 4 has two separate in cross-section V-shaped Insulating bars on.

In the embodiments according to FIGS. 4 to 6 forms the first insulating diagonal element 9 with the first insulating element 4 a first contiguous insulating bar and forms the second insulating diagonal element 17 with the second Insulating 5 a second contiguous insulating web. In the embodiments according to FIGS. 5 and 6 this is with one end 10 to the insulating element 4, 5th integrally formed Isolierdiagonalelement 9, 17 respectively with the other end 11 across a transverse to the insulating element 4, 5 arranged connecting element 18 with the Insulating element 4, 5 connected. At the composite profile 1 after Fig. 5 forms the connecting element 18 each with the associated insulating 4, 5 an angle of 90 °. in the Embodiment of Fig. 6 is the connecting element 18, however, obliquely with respect. Of the respectively associated insulating 4, 5 arranged. For composite profiles 1 to 5 and 6 are each two triangular in cross-section Insulating webs 19 provided. After a preferred Embodiment and in the embodiment of FIGS. 4 to 6 are in each of the composite profiles shown here 1 two independent insulating bars provided with respect their shape and arrangement and respect. One in the cavity. 6 imaginary and not shown mirror plane mirror image are arranged to each other.

Fig. 7 shows a further embodiment of an inventive Composite profiles 1. Here is one of the triangular Insulating webs 19 provided in FIG. 6. Next This triangular insulating bar 19 is also an I-shaped Insulating bridge 16 provided by the insulating 5 is formed.

Claims (10)

1. A composite section (1), particularly for windows, doors and facade elements, - comprising an outer section (2), an inner section (3) and two insulating elements,
   wherein the outer section (2) and the inner section (3) are joined to each other by the two insulating elements (4, 5), and wherein a cavity (6) is formed between the insulating elements (4, 5),
   wherein each of the two insulating elements (4, 5) comprises a fixing foot (7, 8) at one end for fixing to the outer section (2) and comprises a fixing foot (7, 8) at its opposite end for fixing to the inner section (3), wherein these four separate fixing feet (7, 8) of the insulating elements (4, 5) are crimped to provide shear-resistance,
   wherein the composite section (1) further comprises at least one diagonal insulating element (9), which is disposed inclined in relation to the two insulating elements (4, 5), in the cavity (6),
   and wherein, when the insulating elements (4, 5) are in their ready-to-install state, at least one end (10) of the diagonal insulating element (9) is integrally formed in one piece on one of the insulating elements (4, 5), and wherein only one diagonal insulating element (9) is integrally formed in one piece on said insulating element (4, 5).
2. A composite section according to claim 1, wherein the fixing feet (7, 8) of the insulating elements (4,5) are formed as dovetails.
3. A composite section according to either one of claims 1 or 2, wherein the diagonal insulating element (9) forms an angle α with one of the insulating elements (4, 5) which is less than 60°, preferably less than 50°.
4. A composite section according to any one of claims 1 to 3, wherein the diagonal insulating element (9) extends through the cavity (6) over at least 80 % of the length of one of the insulating elements (4, 5).
5. A composite section according to any one of claims 1 to 4, wherein the diagonal insulating element (9) comprises at least one fixing foot (14) for fixing to the outer section (2) or for fixing to the inner section (3).
6. A composite section according to any one of claims 1 to 4, wherein, when the insulating elements (4, 5) are in their ready-to-install state, the diagonal insulating element (9) is integrally formed in one piece with each of its two ends (10, 11) on one of each of the insulating elements (4, 5).
7. A composite section according to any one of claims 1 to 6, wherein a second diagonal insulating element (17) is provided which is inclined in relation to the two insulating elements (4, 5) and when the insulating elements (4, 5) are in their ready-to-install state one end (10) of the first diagonal insulating element (8) is integrally formed in one piece on one of the insulating elements (4, 5) and at least one end of the second diagonal insulating element (17) is integrally formed in one piece on the other insulating element (4, 5).
8. A composite section according to claim 7, wherein the second diagonal insulating element (17) comprises a fixing foot (14) for fixing to the outer section (2) or to the inner section (3).
9. A composite section according to claim 7 or 8, wherein the first diagonal insulating element (9) forms a first, continuous insulating web with the first insulating element (4, 5), and wherein the second diagonal insulating element (17) forms a second, continuous insulating web with the second insulating element (4, 5).
10. A composite section according to any one of claims 1 to 9, wherein the diagonal insulating element (9, 17) which at one end (10) is integrally formed in one piece with the insulating element (4, 5) is connected to the insulating element (4, 5) at its other end (11) via a connecting element (18) which is disposed transversely to the insulating element (4, 5).

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