EP1138864A1 - Compound section member for windows, facades, doors or glazed roof - Google Patents

Abstract

The connecting profile has one and preferably two metal profiled parts (2, 3) with a grooved socket for a plastics insulating web which has anchor elements. The web (4) is provided with a projection and/or recess in its areas having the anchor elements and engaging in the grooved socket (9) so that when the groove web (11) is pressed against the insulating web the groove web deforms across the longitudinal extension of the connecting profile to secure the metal profile and insulating web with the anchor elements against relative displacement in the longitudinal extension of the connecting profile.

Description

The invention relates to a composite profile for windows, facades, wall elements, Light roofs and / or doors, in particular fire protection composite profile, with at least one, preferably two, metal profile (s) made of metal, in particular made of Steel, the at least one metal profile at least one receiving groove for one Insulating web provided with anchoring elements, in particular made of plastic, has, and wherein the at least one metal profile and the at least one Insulating web each preferably by pressing or rolling at least one Groove web of the receiving groove on the at least one insulating web in a form-fitting manner with one another are connected and a composite profile according to the preamble of the claim 18th

A generic composite profile in the manner of a framework made of metal profiles in fire protection design is known from EP 0 717 165 B1. The generic Framework is made of a light metal such as aluminum and has two metal profiles that are connected to each other by a central profile (insulating bridge) are. The metal profiles form chambers in which fire protection strips or fire protection molded body made of a heat-binding, hydrophilic adsorbent with a high crystal water content can be used. That used in the Fire protection strips or fire protection moldings existing crystal water depending on the composition of the fire protection strips or fire protection moldings in Fire released at a temperature of 73 to 215 ° C. The chambers the aluminum profiles are closed, so that the in the chambers usable fire protection strips or fire protection moldings from the hydrophilic Adsorbent cannot fall out of the metal profiles.

The insulating bars are usually made of plastic to ensure good insulation to achieve between the two metal profiles. Parallel to the insulating web or metallic anchoring elements are formed on the insulating web (KS insulating web), which consist of metal strips, which are provided with cutouts or cutouts are in order to minimize the heat flow between the two metal profiles hold. On the one hand, the anchoring elements should be designed to be stable enough to To be able to generate holding forces between the two metal profiles, but they should on the other hand, have dimensions that are as small as possible to keep the heat flow between not unnecessarily increase the two metal profiles.

Profiles that consist of a combination of individual profiles or shells and insulating bars exist, have the problem that the composite, which is usually by pressing the metallic outer shells to the insulating bars is made, both not in the transverse as well as in the longitudinal direction by pressing alone is stable enough.

To avoid these problems it is with a known fire protection steel profile known to improve the transverse and longitudinal shear strength Groove web of the receiving groove for the insulating strip or the insulating web on Emboss the fire protection steel profile at short intervals in order to achieve a positive fit between the two components. This form fit or this Connection is advantageous, but it is not possible by this measure alone to achieve the strength values required in practice. Among other things, this is the fact that the embossing cannot extend into the insulating strip, since this has a high compressive strength and is therefore practically incompressible.

Against this background, the invention aims to provide a composite profile of the generic type Kind, in particular made of steel, such that the connection of the metal profiles with the insulating web in a simple way an increased longitudinal and preferably also has transverse shear strength.

The invention achieves this aim by the subject matter of claim 1.

After that, the at least one insulating web is in its with anchoring elements provided and engaging in the at least one receiving groove areas provided with at least one projection and / or at least one recess, that when pressing or rolling the groove web on the at least one Insulating web at least one transverse to the longitudinal direction of the composite profile extending deformation of the groove web, which forms the at least one metal profile and against the at least one insulating bridge with the anchoring elements Relative shifts in the longitudinal and preferably also in the transverse direction of the composite profile. The deformation preferably forms a particularly good securing area. The lead can also go through the anchoring element are formed.

The invention is therefore initially based on the idea of connecting or rolling on the composite profile a longitudinally extending deformation of the Fastening groove or the groove web delimiting the fastening groove for forming a positive and longitudinal shear resistant connection between to use the insulating bar and the metal profile.

A particular advantage of the invention is that the actual assembly process the composite profile, i.e. especially the curling up of the individual Shells with the insulating webs is not increased by the invention. The real thing Rolling is done exactly like in the prior art.

The invention is suitable for composite profiles of various types Composite profiles made of aluminum. However, they are particularly preferred made of steel (sheet), according to a particularly preferred embodiment two metal profiles can be connected to each other through the insulating bridge.

According to the invention - in particular for forming a fire protection profile - Anchoring elements are preferably used in the recesses of the insulating webs (which, for example, can also be attached directly to the insulating bars), which ones are flatter or higher than the recesses of the insulating webs. Thereby, that the height of the anchoring elements is lower or higher than that Extension of the recesses in the insulating webs is particularly in the area the anchoring elements in a simple manner when molding the receiving groove webs the positive connection according to the invention realized against longitudinal displacements.

With regard to the geometry of the anchoring elements, it has proven to be particularly advantageous exposed the anchoring elements in cross section with a C or U shape. This shape also creates a positive connection in the transverse direction achieved and thus also the shear resistance of the composite profile in a simple manner secured. This is also a clear additional advantage compared to securing the longitudinal displacement solely by deforming the Grooves, because it is in the simplest way both a longitudinal shift and realized a cross shift protection and the composite profile in such a simple way Comprehensively in (almost) all directions against relative shifts of its Individual elements or individual profiles secured. This is especially true in the easy to implement case that the groove web the respective anchoring element end presses the receiving groove in its formed area into the groove base, so that the anchoring element is positively fixed and so the composite profile particularly good in the longitudinal and transverse direction of the composite profile is secured against relative shifts.

Particularly easy to manufacture with high stability of the anchoring elements results when the anchoring elements are metallic and form a positive connection to the two metal profiles and when the anchoring elements consist of sheet steel as stamped and bent parts.

According to a further particularly preferred embodiment of the invention the anchoring elements at least in the rolling area to the metal profiles provided with recesses and / or projections, in particular with serrations or corrugations that further increase the longitudinal shear strength.

The anchoring elements can be located in their edge regions adjacent to the insulating webs also be formed at least partially beveled, so in this There are no sharp-edged transitions to the insulating bars at the edges.

The anchoring elements are advantageously glued to the insulating webs. Alternatively it is also conceivable to connect to or lock onto the insulating webs, so that the anchoring elements are not visible from the outside and a light one Installation of the insulating bars (insertion into the grooves of the profiles) is possible. The insulating bars are used to insert the anchoring elements in the Anchoring elements certain areas preferably by milling into the brought the desired shape.

With regard to the design of the anchoring elements, it should also be noted that the anchoring elements are preferably designed such that a small Heat transfer takes place between the outer profiles. This will e.g. by an H-shape secured with a cross bar connecting two base bars, because in the Area of the crossbar only a relatively low heat transfer is possible. On the other hand, the anchoring elements are essentially in the area of the base webs positively and stably connected to the insulating bars.

According to a further idea of the invention, which can also be considered independently The cross section of the metal profiles essentially has an L, C, or U-shape with a base and at least one angle to the base trained longitudinal web, the transverse and longitudinal webs at least one at least Form partially open hollow chamber into which fire protection strips are used, which by at least one projection on the transverse and / or longitudinal webs of the metal profiles to prevent them falling out of the metal profiles are secured. Gluing, jamming or locking of the fire protection strips and / or plates with the metal profiles is not necessary, although the Some hollow chambers are open to the outside. This is particularly the case with Steel profiles advantageous, in which the formation of completely closed hollow chambers is relatively complicated. This results in particular with these steel profiles by rolling a projection, preferably on the longitudinal webs, a simple one Possibility of securing against falling out.

The fire protection strips or panels are preferably essentially form-fitting in the metal profiles and are preferably used as a hydrophilic adsorbent educated. Examples of suitable substances are generic EP 0 717 165 B1.

Further embodiments can be found in the remaining subclaims. The invention is explained in more detail below with reference to the drawing.

Figur 1

einen Querschnitt eines ersten erfindungsgemäßen Verbundprofiles, welches als Brandschutzprofil ausgebildet ist;

Figur 2

einen relativ zur Figur 1 längs versetzten weiteren Querschnitt durch das Ausführungsbeispiel der Figur 2 im Bereich eines Verankerungselementes vor dem Anrollen der Aufnahmenut des Metallprofils;

Figur 3

den Querschnitt des Ausführungsbeispiels der Figur 2 nach dem Anrollen der Aufnahmenut des Metallprofils;

Figur 4

eine perspektivische Ansicht des Ausführungsbeispiels aus Figur 1;

Figur 5

eine Seitenansicht eines Verankerungselementes;

Figur 6

eine um 90° gegenüber Figur 5 gedrehte Ansicht des Verankerungselementes aus Figur 5;

Figuren 7 und 8

eine Draufsicht auf einen Teilabschnitt eines Isoliersteges mit einem darauf aufgeklebten Verankerungselement sowie eine Schnittdarstellung dieser Ansicht in der Ebene A-A;

Figur 9

eine weitere Ausführungsform eines Verankerungselementes für erfindungsgemäße Verbundprofile.

It shows:

Figure 1

a cross section of a first composite profile according to the invention, which is designed as a fire protection profile;

Figure 2

a further cross-section offset longitudinally relative to Figure 1 through the embodiment of Figure 2 in the region of an anchoring element before rolling the receiving groove of the metal profile;

Figure 3

the cross section of the embodiment of Figure 2 after rolling the receiving groove of the metal profile;

Figure 4

a perspective view of the embodiment of Figure 1;

Figure 5

a side view of an anchoring element;

Figure 6

a view rotated by 90 ° with respect to FIG. 5 of the anchoring element from FIG. 5;

Figures 7 and 8

a plan view of a portion of an insulating web with an anchoring element glued thereon and a sectional view of this view in the plane AA;

Figure 9

a further embodiment of an anchoring element for composite profiles according to the invention.

Figure 1 shows a fire protection steel profile 1 according to the invention, which consists of a first C-shaped outer metal profile 2 and a second C-shaped outer metal profile 3 (also called outer and inner shell) is formed by two mutually parallel insulating webs 4 are interconnected.

Both the C-shaped metal profile 2 and the C-shaped metal profile 3 have one base web 2a, 3a and two substantially perpendicular to each Basic webs 2a, 3a extending longitudinal webs 2b, 3b and 2c, 3c, on which in turn Projections 2d, 3d and 2e, 3e are formed on the inside. Fire protection profiles 7 and 8 are each arranged in hollow chambers 5 and 6 of the metal profiles 2 and 3 and lie there essentially form-fitting. The hollow chambers 5, 6 are essentially of the base webs 2a, 3a and the two essentially longitudinal webs 2b, 3b and 2c running perpendicular to the base webs 2a, 3a, 3c limits, the projections 2d, 3d and 2e, 3e the fire protection strips 7, 8 Secure against falling out of the hollow chambers 7, 8. Those facing inwards Projections 3d and 3e on the longitudinal webs 3b and 3c in turn form insulating web receiving grooves 9, which serve to receive the insulating web feet 10.

The metal profiles 2, 3 consist of a steel sheet, which in the manner of FIG. 1 is bent or roll-formed into the desired profile shape, i.e. both Longitudinal bars as well as the transverse bars are made directly from a sheet. Analogue applies to the insulating web receiving grooves 9, which from the edge areas of the Sheets are formed. The insulating web feet 10 are laterally offset inwards below the insulating web surface 13.

The insulating web feet 10 are positively inserted into the receiving grooves 9. This is done in that when connecting the metal profiles with the insulating webs The groove webs 11 are plastically deformed in the outer regions 12, i.e. the groove webs 11 are pressed against the insulating webs with the areas 12 or rolled up. In this way, a non-positive and positive fit is created Connection between the metal profiles and the insulating bars.

The insulating web surface 13 can be a flush surface with partial areas of the Form inner and outer metal profiles 2, 3 or the metal profiles are such formed that an open hollow chamber 14 is formed above the insulating web. This hollow chamber serves e.g. to accommodate foaming fire protection tapes or to hold fasteners such as slot nuts for fittings (not shown here). In Fig. 1 above the hollow chamber 14 is a fitting level 15, on which e.g. Fit the faceplate for locks can.

By rolling the groove webs 11 a positive connection with a Undercut in the rolling areas 12 of the profiles and the insulating web feet 10 reached in the transverse thrust direction X. The composite profile is 1 in this direction thus secured against relative displacements of its elements.

In the longitudinal thrust direction - here perpendicular to the cutting plane - is opposed by the invention the non-positive connection between the metal profiles and significantly improved the insulating bars. This is explained in more detail below.

FIG. 2 shows - like FIG. 1 - the fire protection composite profile 1 according to the invention Section, but supplemented by anchoring elements 16, which are below the insulating webs 4, i.e. are arranged towards the inside of the profile. The anchoring elements 16 are therefore not visible from the outside. The cross section of the anchoring elements 16 overlaps in the groove area 9 with the cross section of the insulating webs. The cross section the anchoring elements 16 is smaller than the cross section of the insulating web feet 10. The anchoring elements 16 are cut in sections into lateral recesses 20 (see also Fig. 4) of the insulating webs 4 used and advantageous the underside 17 of the insulating webs glued or locked.

The anchoring elements 16 essentially have a cross section in FIGS. 2 and 3 a C-shape (see Fig. 5). In Fig. 4 it is also clear that the anchoring elements H-shaped in a plane perpendicular thereto are.

When the groove webs 11 roll on, they become up to the surface 19 of the anchoring elements 16 depressed (see Fig. 3). The resulting Height difference H causes the positive connection between the Metal profiles 2, 3 and the insulating web 4 in the longitudinal direction. The C or U-shaped ends 18 of the anchoring elements improve the positive connection in the Cross direction X.

Figure 4 shows the fire protection steel profile in a perspective view. How The anchoring element 16 is clearly visible in its on the groove web 11 rolled state shown. The U-shaped ends 18 of the anchoring elements 16 lie in the cutouts 20 of the insulating webs 4.

The profile webs 11 of the receiving grooves 9 are advantageous in the invention Lowered area 21 of the anchoring elements. In particular, this is Forming edge regions 22 in the profile webs 11 effect the invention positive connection in the longitudinal direction of Y.

As can be seen in FIG. 5 and FIG. 6, the H-shaped anchoring element has 16 a crossbar 23 with a relatively small cross-section, so that the thermal conductivity the area of the crosspiece 23 is relatively low. Die cuts 24 right and left to the central cross piece 23 (here essentially rectangular) can be designed in any way and also other shapes, e.g. a triangular one Have shape or a semi-circular shape.

Figure 7 illustrates that the insulating web 4 and the anchoring element 16 are preferred to form a pre-assembled unit simply by gluing (or alternatively - not shown here - by locking) the two components together get connected. The gluing or locking of the two components in the area the adhesive surface 25 is advantageous before the actual assembly of the composite profile made at the factory. The insulating web 4 and its anchoring elements 16 thus form the pre-assembled unit, which is only a simple Rolling in the manner of conventionally designed insulating bars with the metal profiles must be connected. The anchoring elements 16 can, depending on the design can be arranged as often as required on the insulating web 4.

Figure 9 illustrates that the ends 18 of the anchoring element 16 are serrated can be formed (see serrations 26). The jagged shape increases lengthways again the resistance to longitudinal displacements of the profile. Wear as well Inlet and outlet bevels 27 at the ends with appropriate dimensions possibly also to increase the longitudinal shear strength. The prongs and / or Depending on the desired design, bevels 26, 27 can be formed as often as desired become.

The inlet and outlet bevels 27 prevent in particular in a more uncomplicated manner Way a hooking of the anchoring elements 16 on the profiles when inserting the insulating bars in the profiles.

Reference list

1

Composite profile

2nd

Outer shell

3rd

Outer shell

2a, 3a

Landing stage

2b, 3b

Landing stage

2c, 3c

Landing stage

2d, 3d

head Start

2e, 3e

head Start

4th

Insulating bridge

5

Hollow chamber

6

Hollow chamber

7

Fire protection strip

8th

Fire protection strip

9

Groove

10th

Insulating bridge foot

11

Groove web

12th

Dock area

13

Outside surface

14

Hollow chamber

15

Hardware level

16

Anchoring element

17th

bottom

18th

Anchoring element ends

19th

surface

20th

Recess

21

Area

22

Edging area

23

Crossbar

24th

Punching

25th

Adhesive surface

26

Pink

27

Entry / exit slope

Y

Longitudinal thrust

X

Transverse thrust

Z.

Side view

H

Height difference

Claims (18)

Composite profile for windows, facades, wall elements, light roofs and / or doors, in particular fire protection composite profile, with: at least one, preferably two, metal profiles made of metal, in particular steel, wherein the at least one metal profile has at least one receiving groove for an insulating web provided with anchoring elements, in particular made of plastic, and wherein the at least one metal profile and the at least one insulating web are each positively connected to one another by pressing or rolling at least one groove web of the receiving groove onto the at least one insulating web, characterized in that the at least one insulating web (4) in its regions provided with anchoring elements and engaging in the at least one receiving groove (9) is provided with at least one projection and / or at least one recess (20) such that when the groove web (11 ) on the at least one insulating web (4) forms at least one deformation of the groove web (11) which extends transversely to the longitudinal direction of the composite profile and which opposes the at least one metal profile (2, 3) and the at least one insulating web (4) with the anchoring elements (16) Relative shifts in the longitudinal direction of the composite profile secures. Composite profile according to claim 1, characterized in that the deformation forms at least one edge region (22). Composite profile according to claim 1 or 2, characterized in that the projections are formed by the anchoring elements (16). Composite profile according to claim 1, 2 or 3, characterized in that the anchoring elements (16) are inserted into recesses (20) in the insulating webs (4), the overall height of the anchoring elements (16) being less or higher than the extent of the recesses (20 ) in the insulating bars (4). Composite profile according to one of the preceding claims, characterized in that the anchoring elements (16) have a C or U shape in cross section and essentially an H shape in a view perpendicular thereto. Composite profile according to one of the preceding claims, characterized in that the groove web (11) presses the respective anchoring element end (16) in its molded area (21) into the groove base of the receiving groove (9), so that the anchoring element (16) is positively fixed. Composite profile according to one of the preceding claims, characterized in that the anchoring elements (16) are metallic and form a positive connection to the at least one metal profile (2, 3). Composite profile according to one of the preceding claims, characterized in that the anchoring elements (16) are formed as stamped and bent parts made of sheet steel. Composite profile according to one of the preceding claims, characterized in that the anchoring elements (16) have recesses and / or projections in the rolling area to the metal profiles. Composite profile according to one of the preceding claims, characterized in that the anchoring elements (16) are partially serrated or corrugated at least in the rolling area to the metal profiles (2, 3). Composite profile according to one of the preceding claims, characterized in au, that the anchoring elements (16) in their on the insulating webs (4) adjacent edge areas are at least partially beveled are. Composite profile according to one of the preceding claims, characterized in that the anchoring elements (16) are glued, latched or clamped onto the insulating webs (4). Composite profile according to one of the preceding claims, characterized in that the metal profiles (2, 3) have an L, C or U shape in cross section with a base web and at least one longitudinal web formed at an angle to the base web, the base and Cross bars form a hollow chamber (14) which is open at least in sections to the outside. Composite profile according to one of the preceding claims, characterized in that fire protection strips (7, 8) are inserted into the hollow chambers (14) of the metal profiles (2, 3) and by at least one projection on the longitudinal webs of the metal profiles (2, 3) to prevent them from falling out Metal profiles (2,3) are secured. Composite profile according to one of the preceding claims, characterized in that the fire protection strips (7, 8) consist of a hydrophilic adsorbent. Composite profile according to one of the preceding claims, characterized in that the fire protection strips (7, 8) are inserted in the hollow chambers (14) without positive adhesion. Composite profile according to one of the preceding claims, characterized in that the metal profiles (2, 3) are manufactured from a steel sheet by a rolling process. Composite profile for windows, facades, wall elements, light roofs and / or doors, in particular fire protection composite profile, with: at least one, preferably two, metal profiles made of metal, in particular steel, wherein the at least one metal profile has at least one receiving groove for an insulating web, preferably made of plastic, preferably provided with anchoring elements, and wherein the at least one metal profile and the at least one insulating web are each positively connected to one another by pressing or rolling at least one groove web of the receiving groove onto the at least one insulating web, characterized by that the metal profiles (2, 3) have an L, C or U shape in cross section with a base web (3a) and at least one longitudinal web (3b, 3c) formed at an angle to the base web, the transverse and longitudinal webs at least form an at least partially open hollow chamber (14) into which fire protection strips (7, 8) are inserted and the fire protection strips (7, 8) by at least one projection on the transverse and / or longitudinal webs of the metal profiles (2, 3) secured against falling out of the metal profiles (2,3).

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