EP1660749B1 - Profile with welded side walls - Google Patents

Abstract

The profiled beam (1) for a framework has top (32) and bottom (33) flanges shaped from bent sheet metal. The top flange is of inverted U-section with a flat top (16) and downwardly turned sidewalls (6). The bottom flange is of modified U-section, with a double- folded sideways extension (17) at the bottom. U-section fastening pieces (3,4,7,8) are fastened inside the edges of the U-section flanges. they can hold the top and bottom rails of Warren truss members which act as webs of the beam.

Description

The invention relates to a profile for frames of wall elements, doors or windows with the features of the preamble of the independent claim.

Such profiles should in particular also serve to ensure thermal insulation for the frame construction. Another application is in fire protection.

The EP 0 802 300 A2 shows, for example, a composite profile with two metal profiles and these connecting metal strips, whereby three inner chambers are formed. The metal strips have punched holes, which form webs, to reduce the heat flow of the composite profile. The EP 0 802 300 A2 further shows that the metal strips are positively connected with guide grooves having metal profiles. Such a composite profile is relatively difficult to manufacture and expensive by the relatively complicated construction and in particular by the nature of the connection of the central part with the two metal profiles.

The DE 195 26 795 describes a composite profile of two spaced metal profiles and an insulating material located between them, the two profiles each outwardly directed, approximately U-shaped profiles by welding metal webs to the respective side surfaces of the profiles are connected to each other- A metal web can also as a Be formed plurality of openings having side wall. However, the metal webs or side walls must have an excess length, that is, the height of the metal webs must be greater than the distance between the two profiles. This sidewall can only be laterally attached to the profiles be attached so that at least a part of the side wall protrudes. The handling and use of such a profile can be difficult. The outside of the side walls also has a disadvantageous effect for a cladding of the side walls. Such a composite profile is also of little optical nature for use in frames of wall elements, doors or windows.

From the EP 1 024 243 A2 is a composite profile with a fireproof Isolierstegverbindung become known. Two metal profiles are connected to each other via a plastic insulating strip with low thermal conductivity, further heat-resistant additional elements are provided, which should exercise a holding function in case of fire after the failure of the thermal insulation strips. In one embodiment of the EP 1 024 243 A2 an insulating web connection is shown, in which the insulating strip is inserted in a connecting region in receiving grooves of the corresponding metal profile. The additional element consists of sheet steel and is pointwise welded to the metal profile, where it surrounds the connection area between the insulating strip and metal profile over trough-like angled sections.

In EP 1 318 262 A1 are insulating strips made of plastic for a composite profile described. The insulating strips are designed as thin-walled hollow chamber profiles, wherein the chambers can be filled with heat-insulating foam material.

The US 2,941,635 relates to a hollow, rectangular and extending in a longitudinal direction metal profile, which may be provided with perpendicular to the longitudinal direction extending beads.

Finally, on the DE 295 17 375 U1 noted that a composite profile with two metal profiles and connecting them Insulating webs of heat-insulating material concerns. In this case, the insulating bar is fitted in each receiving grooves of the metal profiles. The metal profiles have in this area created by working out and deformation tongues, which engage in marginally arranged legs or grooves of the insulating web.

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 can be created in a simple manner and the production requires as few steps. The profile should on the one hand ensure the lowest possible heat conduction or good thermal insulation and on the other hand should have a high static and dynamic stability. The profile is intended to be used as a base profile for profiles and composite profiles for frames of wall elements, windows or doors of various fields of application.

According to the invention, these objects are achieved with a profile having the features of the characterizing part of the independent claim.

The profile essentially consists of three components: upper part, lower part and these connecting side walls. Top and bottom each contain an end wall. These components consist of metallic materials, preferably of steel, which have relatively high heat conduction. In order to reduce the heat conduction through the profile, from the upper part to the lower part, the side walls are provided with oblique webs. Due to the oblique arrangement of the webs, the webs are formed based on the distance from the upper part and lower part long.

The invention can be realized if at least one side wall each have laterally arranged, U-shaped brackets for receiving a side member. Such a holder can be made in a simple manner by bending the side wall on both sides in such a way that a U-shaped holder is produced in each case in the sides facing the upper part and the lower part of the profile. A recording of a page element is thus easy and cheap to produce. A web can have a running in the longitudinal direction of the web bead. In general, the bead is designed in the form of an inwardly directed indentation. It is advantageous that the profile withstands higher static requirements.

As a result, the heat transfer is reduced by the side walls due to heat conduction through the webs, or improves the thermal insulation of the frame. The greater the inclination or the longer the webs are formed, the higher will be the thermal insulation in principle. The side walls are welded to the upper part and / or to the lower part. The height of the side walls is less than or equal to the distance between the end walls of the upper part and lower part. Thus, a profile with good thermal insulation and good static properties is easy and inexpensive to produce. Such a profile is also characterized by the fact that it can be used for fire protection or burglary protection.

Particularly advantageously, the upper part and / or the lower part at least one angled parallel to a side wall extending to form a contact surface with a side wall. In the area of the contact surface, the upper part or the lower part is then welded to the side walls. Such an arrangement substantially simplifies welding. Since the bend rests parallel to a side wall and flat against a side wall, the side walls can be easily connected to the upper part or lower part by means of laser welding methods. The manufacturing cost of a profile can be significantly reduced. This embodiment is particularly well suited for a rational, automatic series production of a profile.

Preferably, the side walls are arranged inside. The upper part, the lower part and the connecting side walls form a chamber. On the inside, in this context, means that the side walls are arranged on the side facing the chamber. This has the particular advantage that the profile with respect to the side wall has no protruding parts. Since at least a part of the side wall is "hidden", one meets such profile higher aesthetic requirements. In addition, a side member, such as a plastic strip or fire protection strip easier to attach to the side wall, because the side wall is arranged inside the profile, for example, side elements can be mounted flush with the bends on the side walls.

It is advantageous if the side walls have parallel guide grooves. A guide groove can serve as a stop for a second or adjacent profile. However, two mutually parallel guide grooves can also be used for receiving side elements, such as a plastic strip or fire bars.

The webs may advantageously be formed as one or more rows of approximately V-shaped arrangements. A series of approximately V-shaped arrays of lands is achieved, for example, by providing openings in the sidewalls in the form of mutually staggered triangles or trapezoids become. Several rows of approximately V-shaped arrays of ridges form a cross-shaped or X-shaped arrangement. However, the webs do not necessarily have to be created only by attaching openings in the side walls. So it is quite possible to weld the bars individually with the upper part and with the lower part. The basically about V-shaped arrangement of the webs has the advantage that the profile has good thermal insulation and good static properties. An additional advantage is that a significant weight saving is possible.

On the side walls panels may be appropriate. Such a cladding has the advantage that the side wall can be covered easily and inexpensively. Coverings can also have different colors.

If the upper part and the lower part have bends, it is advantageous if inwardly directed end faces are arranged on the bends at their end region. The side walls of the profile are welded in the region of the end faces with the upper part and the lower part. The end faces are preferably provided with a stop for a side wall, which defines the end of an upper or lower part. The advantageous right-angled or approximately right-angled bends are usually mounted on both sides and run parallel to the side walls. It is important that a depression is created by the inwardly directed end faces on the profile, in which elements such as fire protection or cover strips can be attached in an advantageous manner. The profile thus generally has no laterally projecting parts. The respective opposing, preferably parallel to the bends extending stops of the end faces of an upper part and a lower part form bearing surfaces for each side wall. Further, in a simple manner in the chamber of the profile each upper part and / or in the lower part in the region defined by the end faces of thermal insulation panels, or in particular also fire protection plates are added.

The angle between an end face and a bend of an upper part or lower part is between 5 ° and 170 °, preferably between 5 ° and 135 °, particularly preferably between 20 ° and 90 °. Due to the preferred embodiment and in particular by the particularly preferred embodiment of 90 ° or about 90 °, an advantageous recess for receiving side panels such as cover strips or fire protection strips is created.

Particularly advantageous form an inwardly directed end face and a stopper a groove for receiving side elements. With upper and lower parts made of sheet metal, for example, the groove can be produced particularly easily by Abkantprozesse. The groove forms an approximately U-shaped holder for the side elements, wherein the width and depth of the groove depend on the particular intended use of the profile. If sheets of metal are used for the upper and lower part, they can be produced in a simple manner by a bending or roll forming process.

Particularly advantageously, the side walls are welded to the end faces of the bends. A weld can be done relatively easily from the outside.

Alternatively, the side walls can be welded to the preferably short parallel stops of the end faces. The stops form bearing surfaces for placing the side walls. Due to the welding in the area of the flat bearing surface the welding remains relatively distortion free. Particularly advantageously, the welds are designed as stitching.

It is advantageous if the upper part and lower part made of steel and the side walls made of stainless steel. Due to the different types of steel, the profile has particularly good thermal insulation properties because stainless steel conducts heat less well than ordinary steel. The profile can still be produced relatively inexpensively.

A web of a side wall may have a running in the longitudinal direction of the web bead. The bead is designed as a preferably inwardly directed, in cross-section approximately semicircular indentation. A profile with a bead arrangement has improved static properties.

Another embodiment of the invention relates to a profile for frames of wall elements, doors or windows with a top and a bottom and connecting them side walls having openings. On the side walls deformable cams for fixing insulating material are provided in the region of the openings inwardly. Depending on the intended use, one or a plurality of cams may be provided per opening. The shape of the cams is arbitrary, but they should be relatively easy to deform inwardly. With the help of the cam, a profile, in the chamber insulation material is arranged, characterized by an advantageous fixation of the insulation material. In particular, with respect to the longitudinal direction of the profile, the insulating material sits firmly in the chamber and slipping is impossible. By the cams and insulation material, which only partially fills the chamber of the profile and in particular is arranged centrally in the region of the side walls, are fixed in a simple manner.

Advantageously, the insulation material by the cam force and / or positively held in the chamber of the profile. For example, the insulating material can ring by plastic deformation of the insulating material in this. But it is also conceivable that the insulation material has preformed corresponding Ausspaarungen for receiving the inwardly deformable cams. It is also conceivable that the cams additionally have inwardly directed claw-like elevations.

Preferably, a cam is arranged approximately centrally in the region of the base of an opening. Base forms the part of the opening, which runs in the longitudinal direction of the profile. An advantage of this arrangement of cams is that the cams are located in a statically favorable location and the cams can be pressed rationally and easily.

Insulation material can be arranged in the region of the side walls, whereby an upper and lower chamber is formed. The insulating element is preferably approximately rectangular in cross section. These two chambers can also be filled depending on the application with insulation material, fire protection elements or the like. The approximately central arrangement of the insulation material leads to particularly good thermal insulation properties of the profile.

A further aspect relates to a method for producing a profile for frames of wall elements, doors or windows with an upper part, a lower part and connecting side walls, wherein the side walls have webs for improving the thermal insulation properties of the profile and cams for fixing insulating material. For fixing the insulation material, which is arranged in the chamber of the profile, the cams are pressed inwards. This can be done by rolling, rolling and / or pressing. The inwardly deformable cams are provided in the region of the openings formed by the webs of the side walls. The described method for fixing insulation material can also be applied to profiles which have no webs or openings.

Preferably, the cams are pressed into the insulating material or pressed inwards in such a way that they engage in a form-fitting manner into the insulating material by plastic deformation of the insulating material. Of course, it is conceivable that - instead of insulating material - other materials or elements, such as fire protection elements are fixed in a profile by this method.

A further aspect relates to a method for producing a profile for frames of wall elements, doors or windows, comprising an upper part, a lower part and connecting side walls, the side walls having webs. By means of a punching or cutting process, in particular a laser cutting process, openings are made in the side walls. If the profile should have cams, they are preferably punched or cut out of the side walls in the same step. Thereafter, the side walls are welded to the upper part and the lower part.

Advantageously, the upper and lower parts are made of a metal sheet. By a Abkant- and / or Rollformverfahren the sheets can be deformed in a simple manner such that preferably on both sides about right-angled bends and arranged thereon, facing inward ends with a stop arise.

Figur 1:

Perspektivische Darstellung eines Profils,

Figur 2a:

Querschnitt durch ein Profil,

Figur 2b:

Draufsicht auf eine Seitenwand, welche einstückig mit einem Unterteil verbunden ist vor dem Umformen zu einem L-Profil für die Verwendung für das Profil gemäss Figur 2a,

Figur 3:

Querschnitt durch ein weiteres Profil,

Figur 4:

Querschnitt durch ein weiteres Profil,

Figur 5:

Querschnitt durch ein weiteres Profil,

Figur 6:

Querschnitt durch ein weiteres Profil,

Figur 7:

Querschnitt durch ein erfindungsgemasses Profil,

Figur 8a:

Ansicht einer Seitenwand für ein Profil,

Figur 8b:

Ansicht einer Seitenwand für ein weiteres Profil und

Figur 9:

Querschnitt durch ein Profil

Figur 10:

Teilausschnitt aus einem Querschnitt durch ein Profil,

Figur 11:

Teilausschnitt aus einem Querschnitt durch ein weiteres Profil,

Figur 12:

Querschnitt durch ein Profil,

Figur 13:

Teilausschnitt aus einem Querschnitt durch ein weiteres Profil,

Figur 14:

Teilausschnitt aus einem Querschnitt durch ein weiteres Profil,

Figur 15:

Querschnitt durch ein Profil gemäss Figur 13,

Figur 16:

Draufsicht auf eine Seitenwand mit Nocken,

Figur 17:

Detailansicht eines Querschnitts durch ein Profil mit nach innen eingedrückter Nocke.

Further individual features and advantages of the invention will become apparent from the following description of the embodiments and from the drawings, wherein the FIGS. 1 . 2a . 3-6 . 9-15 not covered by the subject of the invention. Show it:

FIG. 1:

Perspective view of a profile,

FIG. 2a:

Cross section through a profile,

FIG. 2b:

Top view of a side wall, which is integrally connected to a lower part before forming to an L-profile for use for the profile according to FIG. 2a .

FIG. 3:

Cross section through another profile,

FIG. 4:

Cross section through another profile,

FIG. 5:

Cross section through another profile,

FIG. 6:

Cross section through another profile,

FIG. 7:

Cross section through a profile according to the invention,

FIG. 8a:

View of a sidewall for a profile,

FIG. 8b:

View of a side wall for another profile and

FIG. 9:

Cross section through a profile

FIG. 10:

Part of a cross-section of a profile,

FIG. 11:

Part of a cross-section through another profile,

FIG. 12:

Cross section through a profile,

FIG. 13:

Part of a cross-section through another profile,

FIG. 14:

Part of a cross-section through another profile,

FIG. 15:

Cross section through a profile according to FIG. 13 .

FIG. 16:

Top view of a side wall with cams,

FIG. 17:

Detail view of a cross section through a profile with inwardly depressed cam.

As in FIG. 1 shown, there is a generally designated 1 profile of essentially three components: an upper part 16, a lower part 2 and the side members 5. The components consist of metallic materials, for example Steel, stainless steel or aluminum. FIG. 1 shows a cross-sectionally rectangular profile. The respective components are designed as flat profiles. Of course, the shape and geometry in the cross section of a profile 1 can be made more complicated. The individual components, that is, the upper part 16, the lower part 2 and the side walls 5 need not necessarily be formed flat, but may for example be configured even U- or T-shaped. How out Fig. 1 shows that the profile is elongated. The side walls 5 and the upper part 16 and the lower part 2 are each arranged parallel to each other. In the FIG. 1 shown side walls 5 serve as spacers for spacing the parallel upper part 16 and lower part 2. The upper part 16, the lower part 2 and the side walls formed chamber 13 may serve to accommodate insulating or fire protection material.

The side walls 5 are each connected by welding to the upper part 16 and to the lower part 2. The weld seam 15 extends in the longitudinal direction. Instead of a continuous seam interrupted seams (stitching) are conceivable.

FIG. 2 shows a profile in which the upper part 16 with the side wall 3 and the lower part 2 with the side wall 4 are integrally connected and each having an L-shape in cross section. These two L-profiles are joined together and welded together, creating a rectangular profile. The FIG. 2b shows a plan view of a planar profile consisting of the lower part 2 and the side wall 4, which for use in the profile 1 according to FIG. 2a is provided. In this case, this profile with respect to the edge line 14 to an L-profile according FIG. 2a formed, rolled or folded.

The weld seam 15 is arranged in the region of the corners of the profile 1. For example, for profiles 1 exposed to higher static loads, a V or I seam would be provided. For this purpose, for example, the upper part 16 or the lower part 2 would have an additional bend, whereby the upper part 16 and the lower part 2 would be flush in the region of the intended seam.

FIG. 2b further shows the inclined webs 5, which are applied by the application of openings 11 in the side wall 4. The webs 5 are inclined relative to the longitudinal axis of the profile at an angle of 45 °. Of course, other inclination angles are conceivable, for example, inclination angle between preferably 30 ° to 90 °. Of course, the webs 5 could also be arranged perpendicular to the longitudinal axis. The webs 5 and the openings 11 are usually arranged centrally in a side wall 4. The web distance a can vary depending on the required thermal insulation or static requirement for a profile of frames for doors, windows or wall panels. The length of the webs 5 depends on the web distance a and on the inclination angle of the webs. Such an obliquely formed web 5 reduced by its length in relation to the web distance a the heat transfer due to heat conduction. If the heat conduction, for example, be small, so in particular the web distance a (in relation to the distance between the upper part 16 and lower part 2) is selected, however, if the profile 1 hold high static and eventual dynamic loads withstand, so a smaller land distance is selected. The openings 11 are as Figure 2b shows, in the form of a trapezoid. The openings 11 are cut out, for example, by a laser cutting method.

FIG. 3 shows an approximately U-shaped profile consisting of the two side walls 3 and 4 and from the lower part 2. The upper part 16 is welded to the U-profile with the side walls 3 and 4. The weld 15 is formed as a fillet weld.

FIG. 4 indicates one FIG. 3 alternative profile. It is different from FIG. 3 the upper part 16 angled, whereby the upper part is also 16 U-shaped. Thereby, the upper part 16 can be connected to the side walls 3 and 4 via a roll seam or a row weld.

FIG. 5 shows another profile 1. The upper part 16 and the lower part 2 are in front of each case in relation to the side walls 3 and 4, whereby the weld seam 15 are each fillet welds. The side walls 3 and 4 serve as spacers (evidently, the height h is equal to the distance A between the upper part 16 and lower part 2) for the upper part 16 and the lower part 2. They each have two parallel guide grooves 10, between which a side member 9 is arranged is. The guide grooves 10 serve in particular also for clamping the side elements 9 to the side walls 3 and / or 4. Such a side member 9 may for example consist of a fire protection element, such as a fire protection strip, a plastic cover strip for covering the webs 5 and the openings 11 or a Center seal exists. Depending on the individual purpose, for example, different thickness tops 16 or bottoms 2 can be used, which, among other things, opens up a variety of applications for the profile 1.
Further examples of profiles are in FIGS. 6 and 7 shown, with nuc FIG. 7 the invention is concerned. These figures show side walls 3 and 4, the height h is smaller than the distance A between the upper part 16 and lower part 2.

The upper part 16 and the lower part 2 each have parallel to the side wall 3 and 4 extending bends 6, on which the side wall 3 and 4 abut surface. Preferably, the side walls 3 and 4 inside, like the FIGS. 6 and 7 show, attached. By the concern, a contact surface 7, whereby the side walls 3, 4 can be welded to the upper part 16 and lower part 2 in a simple manner. The welding can be done for example by a laser welding process. Of course, an external attachment of the side walls 3 and 4 is also conceivable. By attaching the side walls 3 and 4 on the inside, however, it is possible, for example, to attach side elements 9 to the side walls 3 or 5 between upper part 16 and lower part 2 in such a way that they are approximately flush with respect to the upper parts or lower parts 16 and 2 , Of course, the thickness may vary depending on the intended use of a side member 9. Possible side elements are, for example, fire protection strips, seals or fittings for windows or doors. On a side wall can continue, as in FIG. 6 shown, another panel 12 are attached. The attachment takes place for example by gluing. The lower part 2 also has a lateral part 17, for example in the form of a flap, in particular a crimp, which arises, for example, by bending and / or folding a sheet. This lateral part 17 can be used for the assembly of a frame for doors or windows as a stop element with respect to adjacent profiles, eg a sash, (not shown in the drawing).
How out FIG. 7 can be seen, the side walls 3 and 4 have brackets 8. These are U-shaped and are used in particular for receiving the side member 9. For example, starting from a sheet, this way with the help of a Forming bending that forms a U-shaped bracket 8 on both sides of the sheet. Preferably, the side member 9 is arranged on the sheet before bending, whereby after bending the sheet is positively secured in the U-shaped brackets 8. The resulting side wall 3 and 4 is then welded in the region of the bend 6 of the upper part 16 and the lower part 2. The side member 9 according to FIG. 7 is centrally has a T-shaped cam 18. The cam 18 is used in particular for the positive reception of fittings or center seals.

The FIGS. 8a and 8b show variants of arrangements of webs 5, 5 '. So shows, for example FIG. 8a in that the webs 5 and 5 'are arranged in several rows in a V-shape. As a result, the webs 5 and 5 'intersect, thereby creating an X-like course of the webs. Evidently, the openings 11 'and 11''designed as triangles and rhombuses. In FIG. 8b Furthermore, a hexagonal opening 11 '''is shown.

FIG. 9 shows a profile 1, in which the side walls 3 and 4 are arranged offset inwards. The recess thus formed is particularly well suited for receiving side parts such as cover strips, fire protection strips or center seals. These go from the bends 6 of the upper and lower parts 16 and 2 respectively inwardly directed end faces, such as in the form of offsets. An end face 22 has as a conclusion to a stop 23, which runs parallel to the bend 6 and thus parallel to the side walls 3 or 4. The stops 23 of the end faces 22 form bearing surfaces for the side walls 3 and 4. As out FIG. 9 can be seen, the oblique end faces 22 are angled such that the angle α between the end face 22 and bend 6 is about 60 °. Preferred for angle α is a range of 20-80 °. Depending on the application Other embodiments of the end face 22 are conceivable. However, the angle α is greater than 5 ° and less than about 170 °. In FIG. 10 stand the end faces 22 at right angles (α = 90 °) from the bends. The stopper 23 is designed to be relatively short. The side walls 3 and 4 are welded in the region of the end face 22 with the upper part 16 and lower part 2. In the present embodiment, the side walls 3 and 4 by means of a fillet 15 directly welded to the oblique front side portions 22. Instead of as in FIG. 9 , in which on both sides inwardly directed end faces 22 are arranged, the profile 1 can also have end faces 22 or depressions on only one side. The other opposite side could, for example, as in the FIGS. 6 and 7 be shown shown.

FIG. 11 shows a variant of a profile 1 with end faces 22. The side wall 3 is bent or deep-drawn, thereby forming a further depression. How out FIG. 11 (as well as from the FIGS. 9 or 10 ), the side walls are arranged on the outside. It is also conceivable, of course, an internal arrangement of the side walls. The side walls could, for example, be connected to the sections 23 by welding by means of roll seams or row welding seams 15. At best, it would also be conceivable (not shown in a figure) that the side walls 3 and 4 would be configured such that the side walls are welded by butt joint respectively with the ends of the parallel portions 23 of the bend 21.

A profile 1 in fire protection execution is in FIG. 12 shown. By the end faces 22 areas are defined, in which in a simple manner fire protection elements 24 can be inserted. Of course, the chamber 13 of the profile 1 could be completely filled with fire protection materials. The Fire protection elements 24 or fire protection materials consist for example of energy-consuming materials such as alum, glass wool or gypsum. The above-mentioned fire protection elements could be replaced by corresponding heat-insulating materials for profiles 1, which are provided exclusively for thermal insulation. In the recesses formed by the end faces 22 side elements 9 are arranged. The side elements 9 could be designed as a fire protection strip of heat-inflating material. A side member 9 is flat on the side walls 3 or 4 and is preferably secured by gluing. Other types of fastening, for example by means of screws, are conceivable. Due to the particular embodiment of the Abköpfungen 21 is also conceivable (in particular at a preferred angle α between 20 ° and 90 °) that side elements 9 are connected by clamping or latching with the profile 1.

FIGS. 13 and 14 show a profile 1, in which the inwardly directed end faces 22 and the stop 23 form a groove 25 which receives the side wall. Through the groove 25, a space can be created in which in a simple way side elements, such as cover elements for the side walls or fire protection strips can be arranged. If sheets of metal are used for the upper and lower part, the approximately U-shaped grooves 25 of the side walls 3 and 4 can be produced in a simple manner by a Abkant- or roll forming process. To produce the profile 1, the preformed upper and lower parts 16 and 2 are spaced from each other in a predefined position. The side walls 3 and 4 are laterally inserted through the upper and lower grooves 25 and then welded. Next is in the FIGS. 13 and 14 recognizable that a web 5 of the side wall 3 has an inwardly directed bead 26.

In FIG. 13 the bends 6 of the top and bottom 16 and 2 are about the same height, the side wall 3 is arranged approximately centrally with respect to the profile 1. In FIG. 14 the side wall 3 is arranged on one side. Compared to the profile according to FIG. 13 is according to profile 1 FIG. 14 extends the side wall 3 and the bend 6 'of the lower profile shortened accordingly. This lengthens the bars and the profile 1 has a higher thermal insulation performance. Of course, the upper part 16 or both parts could be shortened accordingly.

FIG. 15 shows a profile 1, in which centrally in the region of the side walls 3 and 4, a rectangular cross-section insulation element 28 is fitted. The insulating material 28 is preferably fixed by cams (see below the FIGS. 16 and 17 ). Due to the central arrangement of the insulating material 28, an upper and a lower chamber 30 and 31 is formed. It is quite conceivable that in the cavities of the chambers 30 and / or 31 insulation or fire protection material may be arranged. Cables could also be routed through these chambers.

FIG. 16 shows a side view of a side wall (3 or 4), the inclined webs 5 are arranged in a V-shape, whereby approximately triangular openings 11 are formed. The webs 5 also have a bead extending in the longitudinal direction of the web. The beads 26 are preferably made by a stamping, rolling or other method. Approximately centrally with respect to an opening 11, a cam 27 is arranged on the base 29. The cam 27 is integrally connected to the side wall and is preferably made by a punching or laser cutting process. This also relatively complicated cam shapes can be produced. Evidently the cam 27 towards the base 29 towards a taper 34, whereby the cam 27 is deformed easier and with less effort inwardly. Of course, other shapes are conceivable, for example, the cam 27 may be rectangular, triangular or trapezoidal. FIG. 17 shows a cam 27 in a pressed or deformed state. As can be seen, here the cam 27 engages in the insulating material 28 (the direction of insertion is indicated by an arrow). This ensures that the insulation material, in particular in the axial or in the longitudinal direction of the profile 1 has a tight fit.

Claims (17)

1. Profile (1) for the frames of wall elements, doors or windows, comprising a top part (16) and a bottom part (2), each comprising a front wall (32, 33) and side walls (3, 4) connecting the top part (16) and bottom part (2), said side walls having webs (5) extending at an angle, the side walls (3, 4) being welded onto the top part (16) and the bottom part, the height (h) of the side walls being less than or equal to the distance (A) between the front walls (32, 33) and the top part (16) and the bottom part (2), characterised in that at least one side wall (3, 4) has laterally-arranged, U-shaped mountings (8) to receive a side element (9) which can be fixed onto the side wall.
2. Profile (1) according to claim 1, characterised in that the top part (16) and/or the bottom part (2) has at least one incline (6) running parallel to one side wall (3, 4) to form a contact area (7) and that the side walls (3, 4) are welded to the top part (16) and/or the bottom part (2) in the region of the contact area (7).
3. Profile (1) according to claim 1 or 2, characterised in that the side walls (3, 4) are arranged internally.
4. Profile (1) according to one or more of claims 1 to 3, characterised in that the webs (5) are designed as a row of approximately V-shaped arrangements.
5. Profile (1) according to one or more of claims 1 to 4, characterised in that a sheathing (12) is attached on the side walls (3, 4).
6. Profile (1) according to one or more of claims 1 to 5, characterised in that the chamber (13) formed by the side walls (3, 4), the top part (16) and the bottom part (2) contains at least some insulation material.
7. Profile (1) according to one or more of claims 1 to 6, characterised in that the top part (16) and the bottom part (2) each have inclines (6), with inward-facing front walls (22) being arranged on the inclines, said front walls being provided with a limit stop (23) for a side wall (3, 4).
8. Profile (1) according to claim 7, characterised in that the angle (α), formed by an incline (6) or a limit stop (23) respectively and a front wall (22), for preference lies between 5° and 135°, preferably between 20° and 90°, and especially preferably at about 90°.
9. Profile (1) according to claim 8, characterised in that the inward-facing front walls (22) and the limit stop (23) form a groove (25) to accept side walls (3, 4) and preferably side elements (9).
10. Profile (1) according to one of claims 8 or 9, characterised in that the side walls (3, 4) are welded to the front walls (22).
11. Profile (1) according to one of claims 8 or 9, characterised in that the side walls (3, 4) are welded to the limit stops (23).
12. Profile (1) according to one or more of claims 1 to 11, characterised in that the top part (16) and bottom part (2) are made from steel and the side walls (3, 4) are made from a material with lower thermal conductivity than steel, in particular from special steel.
13. Profile (1) according to one or more of claims 1 to 12, characterised in that one web (5) has a bead (26) running in the longitudinal direction of the web.
14. Profile (1) according to one of claims 1 to 13, characterised in that inwardly deformable cams (27) for attaching insulation material (28) are provided on the side walls (3, 4) in the area of the openings (11).
15. Profile (1) according to claim 14, characterised in that the insulation material (28) is positively and/or non-positively held by the cams (27).
16. Profile (1) according to claim 14 or 15, characterised in that one cam (27) is arranged approximately centrally in the area of the base (29) of an opening (11).
17. Profile (1) according to one of the preceding claims 6 to 16, characterised in that the insulation material (28) is arranged in the area of the side walls (3, 4), thus forming an upper and a lower chamber (30, 31).

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