EP1712718A1 - Composite profile and method for making a composite profile for frames of wall elements, doors and windows - Google Patents

Abstract

The device has at least two metal profiles (2,16) at a distance from each other and metal connecting parts (3). The metal profiles each have facing end wall sections (4) to which the connecting parts are attached, preferably welded, and each connecting part has a side section with end sections. The connecting part is attached to the end sections of the metal profiles in the area of its end section. An independent claim is also included for a method of manufacturing an inventive profile.

Description

The invention relates to a composite profile for frames of wall elements, doors or windows and a method for producing the composite profile with the features of the preamble of the independent claims.

Such composite profiles are also used in particular to ensure thermal insulation for frame structures. Another use of such profiles is fire protection.

The EP 1 020 608 A1 shows, for example, a composite profile with two approximately box-shaped metal profiles and an insulating material arranged therebetween. The metal profiles are interconnected by the insulating material penetrating metal studs. These metal bolts are welded to mutually parallel end walls of the metal profiles. An intumescent building material is attached directly to the offset inwardly arranged lateral surface of the insulation material.

In the DE PS 195 26 795 is a composite profile with two metal profiles and interposed insulating material described. By solid welding individual metal webs or extending in the longitudinal direction of the profile sheet metal to the side walls of the metal profiles, the metal profiles are connected together. An embodiment of the DE 196 26 795 relates to a composite profile in which the insulating material is arranged offset inwardly with respect to the side walls of the metal profiles. A connecting plate has a step-like Verköpfung, with the help of the connecting plate accurately can be positioned and placed on the metal profiles. The depression resulting from the capping can be covered by a band. A disadvantage of this composite profile is in particular that at least a part of the connecting plate protrudes the side walls. The handling and use of such a profile can therefore be difficult. Furthermore, this composite profile arrangement has an adverse effect on the cladding of the composite profile. Also from an optical point of view, such a composite profile is not very suitable for use in frames of wall elements, doors or windows.

It is therefore an object of the present invention to avoid the disadvantages of the known, in particular to provide a device and a method of the type mentioned, which in particular provides a simple way a receptacle for different side elements. Further, no protruding elements complicate the handling of the composite profile. Then, the composite profile should be easy to manufacture and meet high standards of statics and rigidity.

According to the invention, these objects are achieved with a composite profile having the features according to claim 1. The composite profile consists essentially of at least two spaced apart metal profiles and these connecting connecting parts made of metal. The metal profiles each have end wall sections directed toward one another, to which the connecting parts are fastened, preferably welded. A preferred metal profile, for example, have an end wall and approximately at right angles to extending side walls. An end wall section connects to a side wall. Each connecting part has a side section with end sections. Each connecting part is in the region of the end portions with the abutting end wall portions of the metal profiles attached. The end portion of a connecting part may, for example, be angled away from the side portion such that the end portion defines a preferred contact surface with the corresponding end wall portion of the metal profile. Of course, it is also conceivable that the end portion in cross section has a curvature, in particular an arcuate shape. In this case, a mere approximately linear contact zone would be formed to the end wall portion of the metal profile. The connecting parts may be offset inwardly with respect to a side wall of the metal profiles, thereby advantageously providing a recess for receiving side elements. In this case, the connecting parts are preferably arranged in the composite profile such that the end wall sections are each directed outwards. As side elements, for example, fire protection elements, cover strips, seals or fittings are conceivable. The metal profiles may be designed as open profiles, wherein the side walls are advantageously directed toward each other. In this way, a single-chamber composite profile can be formed. Depending on the field of application, insulation and / or fire protection materials can be arranged in the cavity of the composite profile thus formed. The end wall sections of the metal profiles may run parallel to one another, wherein the end wall sections of a metal profile preferably each lie on the same plane. Such an arrangement has the advantage that the distance between the metal profiles can be specified. The oblique arrangement of the end wall portions of the metal profiles also ensures that when inserting the connecting parts fit inaccuracies can be compensated. As a result, the production process can be significantly optimized.

The metal profiles and / or the connecting parts may consist of sheet metal. The profiles can do so in a simple way a bending and / or bending process are formed. Particularly advantageous would be the profiles produced by a roll forming process.

The metal profiles and / or the connecting parts may be made of steel. A composite profile made of steel is characterized by particularly good fire protection properties. Since steel is relatively easy to deform and weld, the composite profile can be produced inexpensively. Even higher fire classes could be achieved by forming the stainless steel profiles. It is particularly advantageous if the metal profiles are made of steel, for example structural steel, and the connecting parts are made of higher-grade stainless steel. In this way, the thermal insulation and fire protection properties of the composite profile can be optimized at relatively low cost.

In a further embodiment, at least one of the metal profiles is a cross-sectionally C-shaped profile. Such profiles can be produced particularly favorable. Of course, it is also conceivable that the metal profiles or at least one of the metal profiles is formed as a closed profile. In this case, the two end wall portions of the metal profile would be connected together.

The connecting parts may have straight or oblique webs for reducing the heat flow between the metal profiles. This arrangement is characterized by particularly good thermal insulation properties. Webs may be formed, for example, by providing openings arranged in a row in the region of the side portion of the connecting part, the row extending in the longitudinal direction of the composite profile. For example, the webs or openings could thereby be created that a metal sheet by means of a punching or laser cutting process is processed.

It is advantageous if at the end portions of the connecting parts connect end portions, which are preferably approximately aligned with each other. As a result, an advantageous space for receiving side elements is created, wherein the side elements would be partially hidden. The side elements can thus not be damaged, scraped or removed during handling of the profiles. Another advantage of this arrangement is that additional fixing of side elements to the connecting parts, for example by gluing, is no longer necessary. At best, the end sections could also serve as a latching means for the latching reception of side elements.

It is particularly advantageous if the end sections in each case run approximately at right angles to the side section of the connection part and if the end sections connect approximately at right angles to the end sections. The two end portions of a connecting part can run in the same plane. But it is also conceivable a step-like arrangement of the end sections. Of course, instead of angled end and end portions, other embodiments of connecting parts are conceivable. Thus, the connecting part may be bent or rounded at its ends in such a way that they define a U-shape. Forehead portion and end portion could, for example, in cross section lie on a circular arc. It is also possible that the end portion and end portion can define V-shape.

The end portion of the connecting part may extend in the longitudinal direction of the connecting part (or composite profile). Such a trained contiguous end portion can on Simple way of making a rectangular long sheet metal. Alternatively, the end section can also be formed by a plurality of individual sections, which are arranged in a row extending in the longitudinal direction of the connecting part (or composite profile). The individual sections are separated from each other by recesses. Uniform distances between the individual sections are preferably provided.

In the limited by the end portions of the connecting part fire protection elements, cover strips, seals and / or fittings may be arranged. By arranging such side elements, the composite profile can be optimally aligned for a particular application or purpose. Fire protection elements could contain, for example, heat-activating materials. Such materials can expand their volume by a multiple at elevated temperature, thereby providing better sealing of the composite profiles in the event of fire. A particular advantage of the arrangement of fire protection elements would result in particular in combination with connecting parts with straight or oblique webs.

In the interior of the composite profile formed by the metal profiles and the connecting parts can be arranged fire and / or heat-resistant insulation material. Thus, the fire values can be additionally increased. Depending on the intended use of the composite profile, the interior of the composite profile is completely or only partially filled with insulation material. The insulation material may extend, for example, from the end wall of one of the metal profiles to the end wall of the other metal profile in the case of a composite profile designed as a single-chamber profile. It is also conceivable that insulation material, for example in the form of a fire protection plate, arranged in the region between the connecting parts is. In this case, the end faces of the insulating material would advantageously rest on the end wall sections of the metal profiles. Of course, one could also arrange insulation material within a metal profile. This insulating material would then be limited by the end wall and by the end wall portions of the metal profile frontally. Of course, one could use several bodies made of different insulating materials for further optimization in the interior of the composite profile.

To produce the composite profiles, the metal profiles and the connecting parts must advantageously be positioned relative to one another in such a way that the end wall sections of the metal profiles bear against the end sections of the connecting parts. Due to the manufacturing process, the comparatively long profile components (for example, 6 m in length) may be slightly bent due to residual stresses. The positioning and adaptation of the profile components to each other can be done by applying relatively large forces. In practice, however, it has been shown that it can be advantageous to selectively weaken the connecting parts at specific locations in order to increase the adaptability of the connecting parts. Thus, less large (pressing) forces are necessary. The connecting parts may for this purpose have a plurality of incisions arranged in a row or interruptions. Such an incision is particularly advantageously arranged in the region of a base created by the preferably approximately triangular opening for the formation of the webs. The production of composite profiles can be greatly facilitated in this way, since such joints can compensate for any fit inaccuracies without much effort.

A further aspect of the invention relates to a method for producing a composite profile for frames of wall elements, Doors or windows. Two metal profiles, each having facing end wall portion and connecting parts with a side portion and at its ends angled end portions are formed by bending and / or bending process. The metal profiles and the connecting parts are positioned relative to one another in such a way that the end wall sections of the metal profiles bear against the end sections of the connecting parts. The metal profiles and the connecting parts are then joined together by a welding process. In this way, the composite profiles described above are particularly easy to produce.

Figur 1

Ein Querschnitt durch ein erfindungsgemässes Verbundprofil,

Figur 2

einen Querschnitt durch ein Verbundprofil gemäss einem zweiten Ausführungsbeispiel,

Figur 3

einen Querschnitt durch ein Verbundprofil gemäss einem dritten Ausführungsbeispiel,

Figur 4

eine Ausführung eines Verbundprofils gemäss Figur 2 mit Isolationsmaterial,

Figur 5

einen Querschnitt durch einen Verbundprofil gemäss einem alternativen Ausführungsbeispiel,

Figur 6

einen Querschnitt durch ein weiteres Verbundprofil,

Figur 7

eine Seitenansicht eines Verbindungsteils,

Figur 8

eine Seitenansicht des Verbindungsteils gemäss Figur 7 für ein Verbundprofil gemäss Figur 5,

Figur 9

eine Seitenansicht des Verbindungsteils für ein Verbundprofil gemäss Figuren 1 bis 4 sowie 6,

Figur 10a

eine detaillierte Teildarstellung des Querschnitts eines Verbundprofil gemäss einem weiteren Ausführungsbeispiel,

Figur 10b

eine detaillierte Teildarstellung des Querschnitts eines Verbundprofil gemäss einem alternativen Ausführungsbeispiel zu Figur 10a,

Figur 10c

eine detaillierte Teildarstellung des Querschnitts eines Verbundprofil einem weiteren alternativen Ausführungsbeispiel zu Figur 10a,

Figur 11

eine perspektivische Darstellung eines Ausschnitts eines Verbindungsteils,

Figur 12

eine perspektivische Darstellung eines Ausschnitts eines alternativen Verbindungsteils,

Figur 13

eine alternative Seitenansicht eines Verbindungsteils,

Figur 14

eine vergrösserte Darstellung eines Nockens und eines gemäss Figur 13 (Detail B), und

Figur 15

eine alternative Ausführung des Nockens gemäss Figur 14.

Further individual features and advantages of the invention will become apparent from the following description of the embodiments and from the drawings. Show it:

FIG. 1

A cross section through a composite profile according to the invention,

FIG. 2

a cross section through a composite profile according to a second embodiment,

FIG. 3

a cross section through a composite profile according to a third embodiment,

FIG. 4

an embodiment of a composite profile according to FIG. 2 with insulation material,

FIG. 5

a cross section through a composite profile according to an alternative embodiment,

FIG. 6

a cross section through another composite profile,

FIG. 7

a side view of a connecting part,

FIG. 8

3 shows a side view of the connecting part according to FIG. 7 for a composite profile according to FIG. 5,

FIG. 9

3 a side view of the connecting part for a composite profile according to FIGS. 1 to 4 and 6,

FIG. 10a

a detailed partial representation of the cross section of a composite profile according to a further embodiment,

FIG. 10b

a detailed partial representation of the cross section of a composite profile according to an alternative embodiment to Figure 10a,

FIG. 10c

a detailed partial representation of the cross section of a composite profile another alternative embodiment to Figure 10a,

FIG. 11

a perspective view of a section of a connecting part,

FIG. 12

a perspective view of a section of an alternative connecting part,

FIG. 13

an alternative side view of a connecting part,

FIG. 14

an enlarged view of a cam and according to Figure 13 (detail B), and

FIG. 15

an alternative embodiment of the cam according to Figure 14.

FIG. 1 shows a composite profile designated by 1, which essentially consists of two metal profiles 2 and 16 and of two connecting parts 3. The metal profiles 2 and 16, which are arranged at a distance A from each other, are designed as open profiles, each with end wall sections 4 directed towards one another. The connection with the connecting parts 3 creates a single-chamber profile 1 with a cavity 10. A connecting part 3 has a side section 5 which bridges the distance A between the metal profiles 2 and 16. At the ends of the connecting part 3 from the side portion at right angles angled end portions 6 are provided, wherein the end portions 6 are directed in each case to the outside. Evidently, the end portions 6 abut against the corresponding end wall sections 4 of the metal profiles 2 and 16, respectively, and are here welded thereto. Of course, other types of fastening, such as screw or rivet connections, find application.

Evidently, the connecting parts 3 are arranged offset relative to the side walls 18 of the metal profiles 2 and 16 inwardly, whereby a depression is formed. The end wall sections 4 are each directed outwards. In the well thus created side elements such as fire protection elements, cover strips or seals can be arranged in an advantageous manner. Also fittings, such as Schliessenbleche or a castle come into question.

The metal profiles 2 and 16 and the connecting parts 3 are preferably made of steel, whereby the respective profiles are formed in a simple manner and welded together can. The metal profile 2 has a C-shape in cross-section. Also, the metal profile 16 is formed substantially C-shaped. For use as a frame element for doors or windows, however, a folded over conclusion is provided on the end wall 16.

The connecting parts 3 according to FIG. 2 differ from FIG. 1 in that end sections 7 adjoin the end sections 6 and are aligned with one another. In so limited by the end portions 7 of the connecting part 3 space is a fire protection element 9, for example, a heat-inflating fire protection strips arranged. Through the end portions 7, the fire protection elements or other side elements without additional fastening means (such as adhesive bonds) can be held in the connecting part 3. Depending on the design of the side elements, the end sections 7 can also be used as lugs for latching or snap connections. It can also be seen in FIG. 2 that webs 12 are provided in the area of the side sections 5 of the connecting parts (cf., for this purpose, FIGS. 7 and 9 below).

• Seitenelemente angeordnet sein.

FIG. 3 shows a composite profile 1 in whose inner or cavity 10 an insulating material 11 is arranged. The insulation material 11 is preferably made of fire and / or heat resistant materials. In the present case, the insulating material 11 is rectangular, wherein it extends from an end wall 17 of the metal profile 2 to the opposite end wall 17 of the metal profile 16. Laterally, the insulating material 11 is held by the connecting parts 3 in position. In this case, the side surfaces of the insulating material 11 abut against beads 14 of the connecting parts (see the following figures 7 and 9). In addition (or alternatively), the free ends of the end wall sections 4 of the metal profiles 2 and 16 could for Positioning of the insulating material 11 are used. In the limited by the end portions 7 of the connecting parts 3 space 8 could of course also here - as shown in Figure 2

• Be arranged side elements.

As can be seen from FIG. 4, the insulation material 11 can be arranged in the region defined by the connection parts 3 in the cavity 10 of the composite profile 1. For this purpose, the free ends of the end wall portions 4 in front of the connecting parts 3 inwardly, whereby the end faces of the insulating material on the end wall sections 4 on or can rest. Of course, it is conceivable additionally or alternatively to arrange insulating materials in the area defined by the metal profiles 2 and 16, respectively. The insulating materials may be made of the same or different material as the insulating material 11.

In the composite profiles 1 shown above, the end wall sections 4 of the metal profiles 2 and 16 each extend parallel to one another. As FIG. 5 shows, however, the end wall sections 4 can also be arranged obliquely. The oblique end wall sections 4 form the free end of the metal profiles. Between the side walls 18, which extend at right angles to the end walls 17 and the end wall sections 4, a second end wall portion 20 is arranged. This end wall portion 20 abuts against the side wall 18 and extends approximately parallel to this. This forms a fold. This can be made by folding / flanging. As is apparent from Figure 5, the connecting part 3 can not be placed laterally on the end wall portions 4. Rather, the connecting part 3 has to be inserted or inserted from one end of the metal profiles held at a distance A in the longitudinal direction. The end wall portions 4 lie on a plane that with the corresponding End wall 17 parallel planes forms an inclination angle α. In the embodiment according to FIG 5, the angle is about 30 °. Consequently, the end portions 6 of the connecting parts 3 are angled relative to the side portion 5 by 60 °. With regard to weldability and stability of the composite profile, the angle α is preferably between 10 ° and 60 °, preferably between 20 ° and 45 °. The attached in Figure 5 to the connecting parts 3 side elements 9 are configured such that the outer surface of the side member lies on the level of the side walls 18 of the metal profiles 2 and 16.

Figure 6 shows a composite profile 1, in which the metal profiles 2 and 16 are formed as closed profiles. The end wall sections are connected to one another such that a closed inner end wall 19 is formed. Between the end walls 19 and the connecting parts 3, an insulating material 11 is arranged.

As can be seen from the side view of the connecting part 3 according to FIG. 7, the connecting part is designed as a component extending in the longitudinal direction of the composite profile, for example a sheet of steel, but particularly preferably of stainless steel. A composite profile with metal profiles made of steel and connecting parts made of stainless steel is characterized by particularly good thermal insulation and fire protection properties. The connecting parts 3 have inclined webs 12, which are applied by the application of arranged in a row openings 13 in the connecting part in the region of the side portion 5. Furthermore, it can be seen in FIGS. 7 and 8 and 9 that a web 12 has inwardly directed beads 26.

As FIGS. 10a and 10b show, the ends of the side section 5 need not necessarily be formed by bends. The connecting part 3 is bent at its ends, whereby a U-shape is defined. The end portion 6 and the end portion 7 lie on a circular arc. In this case, a mere approximately linear contact zone would be formed to the end wall portion of the metal profile. This can have advantages in welding with the metal profiles. In Fig. 10c, end portion 6 and end portion 7 define a V-shape.

In Figure 11, the end portion 7 of the connecting part 3 extends in the longitudinal direction thereof. Instead of a contiguous end portion of this - as Figure 12 - are also formed by a plurality of individual sections 21 which are separated by recesses 22 from each other. The individual sections 21 are arranged in a row extending in the longitudinal direction of the connecting part. The approximately rectangular individual sections 21 are advantageously arranged at regular intervals from each other.

FIG. 13 shows a variant of the connecting part according to FIG. 7. It can be seen that the connecting part 3 has cams 23 for fixing insulating material arranged in the cavity. Such cams are for example in the EP-A-1 510 643 described. As can be seen from FIG. 14, a recess 25 for facilitating the deformation of the cam inward is provided in the region of a respective cam 23. Furthermore, each cam 23 is assigned an incision or a gap 24. Through the incision or gap 24, the connecting part 3 is held together in the region of the cam only by this. Of course, it is conceivable to provide cuts or gaps without cams. With the help of these cuts, the connecting part can be fitted in a simple manner between the metal profiles. Any fit inaccuracies can be compensated without applying large pressing forces. These would preferably also - as shown in Figure 13 - alternately or alternately arranged at the top and bottom in the region of a base 27 of an approximately triangular opening 13. Between the recess 25 and the end portion 6, a further recess 26, advantageously in the form of a circular hole, is provided. As Figure 15 shows, the recess 25 may be configured as a circular hole. This is arranged offset further outwards in comparison to Figure 14, whereby the cam 23 is fully formed.

Claims (11)

Composite profile (1) for frames of wall elements, doors or windows with at least two metal profiles (2, 16) arranged at a distance (A) from one another and metal connecting parts (3) connecting the metal profiles, characterized in that the metal profiles (2, 16) each having mutually facing end wall portions (4) to which the connecting parts (3) are fixed, preferably welded and that each connecting part (3) has a side portion (5) with end portions (6), wherein the connecting part (3) in Area of the end portions (6) with the abutting end wall portions (4) of the metal profiles (2, 16) is attached. Composite profile according to claim 1, characterized in that the metal profiles (2, 16) and / or the connecting parts (3) consist of sheet metal. Composite profile according to claim 1 or 2, characterized in that the metal profiles (2, 16) and / or the connecting parts (3) consist of steel. Composite profile according to one of claims 1 to 3, characterized in that at least one of the metal profiles (2, 16) is a cross-sectionally C-shaped profile. Composite profile according to one of claims 1 to 4, characterized in that the connecting parts (12) straight or oblique webs (12) for reducing the heat flow between the metal profiles (2, 16). Composite profile according to one of claims 1 to 5, characterized in that connect to the end portions (6) of the connecting parts (3) end portions (7), which are preferably directed towards each other. Composite profile according to claim 5, characterized in that the end portions (6) extend approximately at right angles to the side portion (5) of the connecting part (3) and that the end portions (7) approximately at right angles to the end portions (6). Composite profile according to one of claims 6 or 7, characterized in that at least one of the end portions (6) of the connecting parts (3) by a plurality of individual sections (21) is formed, which are arranged in a longitudinal direction of the connecting part extending row. Composite profile according to one of claims 6 to 8, characterized in that in the by the end portions (7) of the connecting part (3) limited space (8) side elements (9) are arranged, wherein the side elements from the group of cover strips, seals, fittings or Fire protection elements, in particular heat-inflating fire protection elements are selected. Composite profile according to one of claims 1 to 9, characterized in that in the interior (10) formed by the metal profiles (2, 16) and the connecting parts (3) a fire and / or heat-resistant insulating material (11) is arranged. Method for producing a composite profile (1) for frames of wall elements, doors or windows made of two metal profiles (2, 16), each end wall section directed towards each other Having () and these connecting connecting parts () with a side portion () and at its ends angled end portions (), in particular according to one of claims 1 to 10, characterized in that the metal profiles (2,16) and the connecting parts () respectively Bending and / or bending methods are formed and that the metal profiles (2,16) and the connecting parts () are positioned so that the end wall portions () of the metal profiles (2, 16) against the end portions () of the connecting parts (3) and the metal profiles (2, 16) and the connecting parts (3) are joined together by a welding process.

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