WO2016207438A1

WO2016207438A1 - Multi-chamber hollow profiled element, fire protection structure containing the multi-chamber hollow profiled element, and method for producing the multi-chamber hollow profiled element

Info

Publication number: WO2016207438A1
Application number: PCT/EP2016/064866
Authority: WO
Inventors: Matthias Auth; Helga Grünzel; Andreas Poersch; Guido Siebert; Frank KÖRBEL
Original assignee: Pilkington Group Limited
Priority date: 2015-06-25
Filing date: 2016-06-27
Publication date: 2016-12-29
Also published as: EP3314081A1; DE102015211878A1; PL3314081T3; EP4234872A2; EP4234872A3; EP3314081B1

Abstract

The invention relates to a multi-chamber hollow profiled element having an outer wall (10a), which multi-chamber hollow profiled element comprises at least one fire protection material chamber (12) having an outer wall (10a), which is completely or partially filled with one or more fire protection materials (20, 20a, 20b), and at least one accommodating hollow chamber (14), for use in fire protection structures, in particular in fire-resistant frames for fire protection elements, for example as an insert or insertion piece in a fire-resistant glazing frame (22). According to the invention the at least one accommodating hollow chamber (14): is arranged in the interior of the multi-chamber hollow profiled element (10), is completely or predominantly surrounded by the at least one fire protection material chamber (12); has at least one end face, which is arranged in the region of the outer wall (10a) or in the region of the ends of the multi-chamber hollow profiled element (10) such that the accommodating hollow chamber (14) is accessible from outside of the multi-chamber hollow profiled element (10); and is separated from the at least one fire protection material chamber (12) completely or predominantly surrounding the accommodating hollow chamber by means of at least one wall (14a) that is at least largely impermeable to the fire protection material (20, 20a, 20b).

Description

Multi-chamber hollow profile, this multi-chamber hollow profile containing fire protection structure and method for producing the multi-chamber hollow profile

Field of the invention

The invention relates to a multi-chamber hollow profile according to the preamble of claim 1, a fire protection structure, in particular a frame for a

Fire-resistant glazing in which this multi-chamber hollow profile is used, a method for producing the multi-chamber hollow profile, and a use of the multi-chamber hollow profile.

Technical background

It is known to produce fireproof frames, such as Vergiasungsrahmen, from a load-bearing frame profile and a separate hollow profile, which is used as a separate component in a suitable for receiving the hollow profile cavity of the supporting frame profile. The supporting frame profile and the hollow profile each have cavities which typically extend in the longitudinal direction of the frame profile. These cavities can have different functions. For example, they can be filled with a fire protection material. The fire protection material is usually used as a preformed building block, such as a

dimensionally stable insert or insert, introduced into at least one cavity. Other existing cavities, for example, can be used as cable ducts or serve the inclusion of fittings or the like. On load-bearing fire resistant frames for fire protection elements, such. Frame for

Fire-resistant glazing, the following description refers to each case, if of frame, fire protection frame, Vergiasungsrahmen, frame profiles or

Frame profile parts is the speech. The invention moreover relates generally to multi-chamber hollow profiles for insertion into fire protection structures, such as e.g.

Fire protection windows, doors or walls.

A standard construction of a load-bearing frame profile comprises two

Frame profile parts and bolts, which firmly connect the two frame profile parts in the finished frame. If filled with a fire protection hollow profile in such a construction of two frame profile parts and connecting Bolt is to be used, are usually produced in the filled with fire protection material hollow profile passage holes for the implementation of the bolt.

EP 1 681 430 A2 discloses a composite profile, for example for a window frame, which comprises two metal profile parts which are mounted at a fixed distance from one another and which are connected to one another by bolts arranged perpendicular to the metal profile parts. Between the metal profile parts is a fire resistant and / or

heat-resistant insulation material made of alum or glass wool arranged. The insulation material is protected from environmental influences by an enclosing jacket and side covers. Between shell and cover an external further cavity is formed, which can serve as a conduit or cavity for further fire protection material, for example. The bolts pass through the

Insulating material and make holes in the jacket required. From EP 2 749 724 A1 is a composite profile for fire doors and

Fire protection window known, the supporting frame profile has a central profile made of fiber-reinforced plastic, on whose opposite sides metallic support profiles are attached. Within the profile of fiber reinforced plastic inner longitudinal chambers are provided in the fittings and / or

Corner connecting angle and / or insertion parts made of calcium silicate can be used.

DE 10144551 A1 discloses a fire protection element for constructing a framework on a building for holding a clampable component, such as a

Fire-resistant glazing. An anchor profile is a core profile

surrounded by heat-insulating filling material, which is surrounded by a cladding. The hollow chamber contained in the core profile in some embodiments does not extend to the outer surfaces of the fire protection material enclosing

Enclosed in the form of a load-bearing box profile, but is always surrounded on all sides by the filling material. The hollow chamber is not for taking any

Object determined.

WO 2003/023175 A1 discloses a frame profile with fire protection material filling. In the fire protection material filling, a hollow chamber for receiving a locking bar of a closing mechanism or the like. Be provided (Fig. 3). The Fire protection material is filled directly into the frame and thus provides no Einschiebling or no separate filling profile with its own coat profile and

Fire protection material filling. The composite profile according to EP 1 681 430 A2 has several disadvantages. For the

Carrying out the bolts, holes must be provided in the jacket. In one embodiment, recesses are produced directly in the insulation material, in which the lid is attached, so that the fire protection material! insulating material is not hermetically sealed in several places. In the holes and recesses may become brittle over time

Exude insulation material. Moving parts in the holes can cause mechanical abrasion of the unprotected insulation material here. During a fire, cooling water, which is bound in the insulating material in a coolant, prematurely escape through the holes or recesses. This is disadvantageous for the cooling performance of the insulation material. Finally, the hollow chamber formed between the jacket and the cover for accommodating cables in the composite profile according to EP 1 681 430 A2 lies completely outside the insulating material, so that the cables are insufficiently protected from the fire in the event of fire. In the composite profile according to EP 2 749 724 A1, the longitudinal chambers are provided in the supporting central frame profile. The firm connection between the longitudinal chambers and the supporting profile has, inter alia, the disadvantage that the type, size and arrangement of the chambers for the finished fire protection frame are completely defined. This system thus lacks the desired flexibility.

Summary of the invention

The invention is based on the object to provide a multi-chamber hollow profile, is housed better protected in the fire protection material when in the

Fire protection material cavities for receiving mechanical

Connecting devices, fittings, cables or the like are provided. Object of the present invention, it is further, at least one hollow chamber of the multi-chamber hollow profile, as a shaft for heat-sensitive components such as optical or electrical cables, electronic components such as sensors, rods, screws, connecting bolts, fittings, reinforcing inserts (eg burglar-resistant Polycarbonate inserts) or the like, by at least one

Fire protection material chamber better to protect from the heat of a fire. The invention is finally based on the object to provide a multi-chamber hollow profile, wherein at least one hollow chamber for receiving cables,

Sensors, connecting bolts, fitting parts, reinforcing inserts or the like (hereinafter: "receiving hollow chamber"), and at least one filled with fire protection material hollow chamber (hereinafter: "fire protection material chamber") as flexible as possible and can be combined with each other as needed. The invention is therefore a multi-chamber hollow profile with a

Exterior wall comprising at least one fire protection material chamber and at least one receiving hollow chamber, and which is intended for use in fire protection structures such as fire walls, fire protection windows or fire doors, especially in fireproof frames for fire protection elements, such as insert or insert in fire-resistant glazing frame. The multi-chamber hollow profile according to the invention is characterized in that the at least one receiving hollow chamber:

Is arranged inside the multi-chamber hollow profile,

• within the multi-chamber hollow profile completely or predominantly from

at least one fire protection material chamber is surrounded, while at least one of its, preferably both end faces are arranged in the region of the outer wall or the end faces of the multi-chamber hollow profile and accessible from outside the multi-chamber hollow profile,

• By at least one of the fire protection material at least largely

impermeable wall from the at least one surrounding it

Fire protection material chamber is separated.

The wall of the receiving hollow chamber is intended in particular to prevent penetration of particles of the fire protection material from a fire protection material chamber into the receiving hollow chamber, in a preferred embodiment also an entry of liquids such as water, in particular in the form of

Steam, from the fire protection material. The primary function of the wall of the receiving hollow chamber is therefore to prevent penetration

Fire protection material from a fire protection material chamber in the receiving hollow chamber in the production of the multi-chamber hollow profile, during its handling and after its proper installation in a fire protection structure under normal conditions permanently at least largely excluded, so that - apart from the fire - at most insignificant amounts of fire protection material can get into the receiving cavity.

Suitable materials for the wall of the receiving hollow chamber are in particular: plastics (both thermosets and thermoplastics), preferably from the substance groups of the polyamides, polyimides, polyetherimides, polybenzimidazoles,

Polyaryletherketones, polyetheretherketones (PEEK), silicones, fluoropolymers,

Silicone resins, acrylonitrile-butadiene-styrenes (ABS), styrene-acrylonitriles (SAN), acrylic ester-styrene-acrylonitriles (ASA), PTFE, synthetic resins, phenoplasts, polycarbonates, polyacrylates, rubbers, in particular ethylene-propylene-diene rubber, polylactates, PMMA, PET, PVC, TPU, polyethylene, polypropylene, polystyrenes; in addition, fiber-reinforced plastics, in particular glass-fiber and / or carbon-reinforced plastics (GRP, CFRP), preferably based on epoxy resins, melamine resins, acrylate resins, polyester resins; metals; organic substances such as materials

Cellulose base such as cardboard or wood; Textiles, woven fabrics, knitted fabrics, nonwovens

Fiber materials. The multi-chamber hollow profile according to the invention comprises a plurality of hollow chambers.

At least one of these hollow chambers is filled with fire protection material and thereby forms at least one fire protection material chamber. Fire protection material chambers may be partially filled with fire protection material such. B. only on the inside of their chamber walls or by inserting a Einschieblings with undersize, or they may be substantially completely filled with fire protection material. In addition, the multi-chamber hollow profile according to the invention comprises at least one receiving hollow chamber for receiving components such as optical or electrical cables, electronic components such as sensors, rods, screws, bolts, reinforcing inserts or the like. Finally that can

Multi-chamber hollow profile optionally have at least one further hollow chamber, which is neither filled with fire protection material nor for receiving components such as

Sensors, fittings, cables, bolts, reinforcing inserts or the like are determined (hereinafter "empty chambers"). The receiving hollow chambers, fire protection material chambers or empty chambers, for example, have an elongated or a flat shape.

Typically, the chambers for glazing frames are elongated chambers of significantly larger dimensions in the longitudinal direction than in the transverse direction. If the chambers of the typical design of glazing frame are elongated, they have one or more longitudinal walls and at the ends of one or more end faces or end walls. The longitudinal walls in this case extend parallel to the longitudinal axis of the chambers and the glazing frame, and the end walls or end faces are arranged transversely or obliquely to this longitudinal axis. If the multi-chamber hollow profile is to be incorporated into areal fire protection structures such as fire doors or walls, is also the

Multi-chamber hollow profile usually formed flat with a relatively small thickness compared to the outer dimensions (length / width). In this case, one or more of the chambers may have a planar extension.

In this embodiment, the walls of the receiving hollow chamber (s) extend substantially parallel to the longitudinal walls of the fire protection material chamber (s).

If, however, receiving hollow chambers are provided, for example, for receiving bolts for connecting the separate profile parts of a glazing frame, the walls of the receiving hollow chambers are substantially perpendicular to

Longitudinal axis of the multi-chamber hollow profile and thus arranged substantially perpendicular to the longitudinal walls of the fire protection material chamber (s). In other words, the main axis of the receiving hollow chamber (s) in this case is perpendicular to the main axis of the fire protection material chamber (s). At the same time, the end faces of the receiving hollow chamber (s) are rotated by 90 degrees with respect to the end faces or end walls of the fire protection material chamber (s) and at least one of them, preferably both end faces, are arranged in the region of the outer wall of the multi-chamber hollow profile extending along the profile.

The invention finds application for both orientations of receiving hollow chambers, namely essentially parallel or perpendicular to the fire protection material chambers, as well as intermediate forms. The at least one receiving hollow chamber preferably passes through the

Multi-chamber hollow profile from a region of its outer wall or an end face to an opposite region of its outer wall or an end face, so that a component can be pushed or pulled through the receiving hollow chamber of the multi-chamber hollow profile or from two sides. However, it is within the scope of the invention if a receiving hollow chamber is designed in the manner of a blind hole and is accessible only from an outer wall or end face of the multi-chamber hollow profile. This may be useful if small heat-sensitive components with a small footprint in the receiving hollow chamber to be housed or if bolts or other mechanical fixative only penetrate into the multi-chamber hollow profile for fixing and this should not completely penetrate.

The fire protection material chambers are closed in one embodiment at their located in the region of the outer wall or an end face of the multi-chamber hollow profile end faces, for example, with open and closed lids. This is beneficial to maximize the cooling effect in case of fire. However, they can also be open at their ends. In one exemplary embodiment, one or more seals or other depressions or cross-sectional constrictions reducing the flow cross-section are present in a receiving hollow chamber. Alternatively or additionally, the inner surface of the wall of a receiving hollow chamber with a three-dimensional structuring such. be provided with grooves, ribs or a grain, in general terms with a relief-like structure or a structure with macroscopic unevenness. This is particularly advantageous in the installation situation vertical course of receiving hollow chambers, since in this way the flow through the

Recording cavities with hot gases (chimney effect) optimized, in particular can be throttled.

It is within the scope of the invention to leave fire protection material chambers open on at least one of their end faces. However, fire protection material chambers are preferably completely encased with a wall. The main advantage of a complete sheathing of the fire protection material in the fire protection material chambers including their faces is that there is then no mass transfer between the interior of these chambers and their environment.

For the walls of fire protection material chambers, located inside the

Are multi-chamber hollow profile, are basically a variety of materials suitable, the separation of the fire protection material in one

Fire protection material chamber of other hollow chambers of the multi-chamber hollow profile effect, including in particular the materials listed above, which are suitable for the wall of at least one receiving hollow chamber.

The outer wall of the multi-chamber hollow profile has the function of mechanically protecting and stabilizing the at least one fire protection material chamber and the at least one receiving hollow chamber and to protect against harmful influences from the outside, and preferably for as long as possible after the start of a fire. The outer wall may be part of the wall of at least one fire protection material chamber, it may also form a small part of the wall of at least one receiving hollow chamber. In that regard, apply to the

relevant walls formulated requirements as minimum requirements even where these hollow chamber walls are part of the outer wall of the multi-chamber hollow profile.

Regardless of the outer wall of the multi-chamber hollow profile is preferably substantially by a suitable choice of material and thickness for

Fire protection material, especially in its cured state, and impermeable to its components and this preferably remains up to a

Temperature of the outer wall of at least 70 ° C, in particular to at least 100 ° C. In this way, it is ensured that the fire protection material enveloped by the outer wall only at the high temperatures of a fire and not already for other reasons increased temperatures, for example, in strong

Sunlight, its function unfolds, such as the release and evaporation of cooling water. The full cooling capacity of the fire protection material is thus provided as desired only in a fire. By wrapping the interior of the multi-chamber hollow profile by a for the coated fire protection material

impermeable outer wall material, for example of organic polymers, in particular plastics (especially GRP or CFRP), cardboard, or of metals, is also the mechanical abrasion of the fire protection material and thus contamination of others Prevents components. Conversely, no harmful foreign substances from the outside into the multi-chamber hollow profile and in particular in the multi-chamber

Fire protection material chamber (s) enter. For this at least largely complete insulation of the interior of the fire protection chamber (s) whose shell must be substantially complete by the outer wall. The for

Fire protection material impermeable outer wall should therefore be free of larger pores.

For the walls of receiving hollow chambers, however, less heat-stable materials can be used, which may also be permeable to components of the fire protection material or the foamed fire protection material. When using a porous, mesh-like or net-like material for the wall of a receiving hollow chamber components of the fire protection material, in particular water vapor can penetrate the wall in case of fire. With sufficiently small pores, a small mesh size and / or small size

Grid spacing but at least a mechanical protection can be ensured because particles of the cured fire protection material neither emerge from the receiving hollow chamber surrounding fire protection material chamber fixed

Objects can penetrate into these. This is of particular advantage in receiving cavities running transversely to fire protection material chambers, which are e.g. are provided for receiving bolts.

In the case of a fire in this embodiment in the fire protection material resulting gaseous decomposition products through the porous wall of a

Intake hollow chamber into it and from there controlled escape into the environment. At the same time coolant, preferably steam, from the fire protection material of at least one surrounding the receiving hollow chamber fire protection material chamber, for example, in the receiving cavity located metallic connecting bolts of the fire protection frame cool, in the

Multi-chamber hollow section is used, and thereby improve the fire resistance of the frame.

Another significant advantage of the multi-chamber hollow profile according to the invention is that receiving hollow chambers, which are used as cable ducts, in the region of their walls completely or predominantly of Fire protection material are surrounded. The cables are so good in front of the

Exposure to the heat of a fire protected.

Cables or other introduced into the receiving hollow chamber components can there with other material, in particular fire protection material, poured, foamed or fixed. The material used advantageously has cooling and / or insulating properties.

Another advantage of the multi-chamber hollow profile is, in particular in the case of longitudinally arranged receiving hollow chambers, in its modular design, since as receiving hollow chambers and fire protection material chambers to

can be selected application-specific using hollow chambers and thus different variants of the multi-chamber hollow profile can be provided as needed. All Hohikammern can first be assembled with empty cavities to a multi-chamber hollow profile, and a part of these is then filled with fire protection material, resulting in the filled hollow chambers fire protection material chambers, while the remaining unfilled hollow chambers are available as receiving hollow chambers or empty chambers.

Fire protection material chambers can also be prepared in advance and then combined with at least one receiving hollow chamber. It can be simple designs, such as cylinders or cuboid profiles, particularly flexible

assembled and adapted to different fire protection structures such as frames. Furthermore, it is advantageously possible, a one-piece hollow chamber system (with hollow chambers in the longitudinal direction, but in particular with transversely oriented thereto

Receiving hollow chambers for the passage of bolts)

prepare polymer processing and then in the one-piece

Multi-chamber hollow profile to fill individual hollow chambers with fire protection material and provide one of the hollow chambers as receiving hollow chamber. Due to this modular construction, it is possible by a variation of the

Fire protection material content and the fire protection material arrangement targeted to set various fire protection classes.

According to a preferred embodiment of the invention, hollow receiving chambers can be provided at their end faces for receiving components, such as cables, remain open on one or both sides or be opened and then optionally closed with customized lids.

Fire protection material combs are open on their front sides for filling or can be opened and are then closed either in the filled state / after hardening of the fire protection material in situ with lids or remain permanently open. In the case of transverse to the major axis or surface plane of the

Multi-chamber hollow profile arranged receiving hollow chambers lid are not always needed, especially when the receiving hollow chambers are used for the insertion or passage of bolts.

In a preferred arrangement, the walls of the receiving hollow chamber (s) and the fire protection material chamber (s) extend parallel to the main axis of the multi-chamber hollow profile, and the end faces of the receiving hollow chamber (s) are substantially parallel to the end faces of the fire protection material chamber (s). This embodiment corresponds to the essential basic arrangement according to the invention, in which the at least one receiving hollow chamber and the at least one

Fire protection material chamber parallel to the main axis of the multi-chamber hollow profile and to the main axis of the fire protection frame, in which the hollow profile is used. The at least one receiving hollow chamber is preferably open at its two end faces, so that cables can be pulled through, which are protected within the receiving hollow chamber with the interposition of its wall of surrounding fire protection material. In another arrangement according to the invention, the at least one receiving hollow chamber extends perpendicularly, transversely or obliquely to the main axis of the

Multi-chamber hollow profile and extends the at least one

Fire protection material chamber parallel to this main axis. In this case, the end faces of the fire protection material chamber (s) are arranged perpendicularly, transversely or obliquely to the main axis of the multi-chamber hollow profile, and at least one end face of the at least one receiving hollow chamber is in the region of the outer wall of the multi-chamber hollow profile. This embodiment is suitable for a situation in which a multi-chamber hollow profile transversely to the longitudinal axis must have at least one passage in order to provide, for example, at least one connecting bolt between two frame profile parts, between which the inventive Multi-chamber hollow section is arranged, or at least one fixing bolt which is fixed to a frame part, in at least one designed as a blind hole

To bring in receiving hollow chamber. The multi-chamber hollow profile is in this case preferably in one or more parts by a

Polymer processing methods such as injection molding, and it is due to the increased complexity of the inner contour of the cavity of the

Fire protection material chamber (s) preferably with liquid precursors of

Fire protection materials filled in the at least one

Harden fire protection material chamber in situ. However, it is also possible, in one of at least one receiving hollow chamber transversely penetrated

Fire protection material chamber one or more prefabricated Einschieblinge of hardened fire protection material past the at least one receiving hollow chamber past, leaving remaining cavities either unfilled or can be partially or completely filled with Knetmassen or liquid precursor material of fire protection material.

In the preferred embodiment of the invention, in which the receiving hollow chamber (s) and fire protection chamber (s) are arranged substantially parallel to each other and substantially parallel to the main axis of the multi-chamber hollow profile, the essential technical details of the invention can be particularly well recognized and described in the cross-sectional view become. In the cross-sectional view perpendicular to the main axis of the multi-chamber hollow profile, the profile has a

Exterior wall and one or more interior walls. The outer wall is located at the periphery of the multi-chamber hollow profile and limits this towards the environment, while inner walls are arranged inside the profile. Walls between adjacent fire protection material chambers and walls between adjacent receiving hollow chambers and walls between fire protection material chambers and receiving hollow chambers can be formed either by common walls, especially if the multi-chamber hollow profile in one piece

Injection molding has been made, or there may be two or more walls here

adjoin one another when the individual hollow chambers are produced separately from each other and then joined together to form a multi-chamber hollow profile. Preferably, the walls of receiving cavities are completely within one

Multi-chamber hollow sections and have no share of its outer wall. In order to achieve the objectives of the invention, in particular an improved protection of cables or other heat-sensitive components in case of fire, is / are the directly surrounded by the outer wall of the multi-chamber hollow profile (s)

Hollow chamber (s) each partially or completely filled with fire protection material and thus serve / serve as fire protection material chamber (s). As a result, the at least one internal receiving hollow chamber can be made e.g. be particularly well protected in case of fire for the reception of cables or other heat sensitive components, as they are completely in cross section of the / the outside

Fire protection material chamber (s) is surrounded (are).

If receiving cavities are arranged rotated through 90 degrees to the fire protection material chambers for the implementation of bolts, results in a similar almost complete enclosure of the receiving cavities with fire protection material. The walls of transversely arranged receiving hollow chambers and

Fire protection material chambers can be made in one piece unit. However, it is possible to manufacture separately (elongate) hollow bodies (for example cylinders, rectangular profiles or polyhedron profiles) in passage openings of the multi-chamber hollow profile or

at least one fire protection material chamber to insert and fix it, which then form the walls of the receiving hollow chambers in the finished multi-chamber hollow profile. In this respect, there is no fundamental difference in design and construction between the parallel arrangement and the vertical arrangement of receiving hollow chambers relative to fire protection material chambers.

The contour of receiving hollow chambers and fire protection material chambers is outwardly essentially by the desired or required shape of the

Multi-chamber hollow sections set as insert or use in one

Fire protection structure, in particular in a fire protection frame (e.g.

Glazing frame) should be used. Both for this purpose has the

Outer wall of the multi-chamber hollow profile preferably a polygonal,

in particular triangular, quadrangular, in particular rectangular or square, pentagonal, hexagonal, octagonal cross-section. Also combinations of

Geometries are possible. The walls of the receiving hollow chambers and

Fire protection material chambers and any empty chambers preferably also have a polygonal, in particular triangular, quadrangular, in particular rectangular or square, pentagonal, hexagonal, octagonal cross-section. They can also have a circular or elliptical cross-section. Again, combinations of geometries are possible.

The interaction of the contours of receiving cavities and

Fire protection material chambers with the contour of the outer wall of the

Multi-chamber hollow profile is exemplified by the schematic drawings in Figures 1 to 12.

In the cross-sectional view fire protection material chambers and receiving hollow chambers and optionally. Empty chambers completely fill the multi-chamber hollow profile. However, there is also the possibility that the various chambers are not tightly packed and space filling, but put together leaving cavities between the chambers. The remaining in these cases between the walls of adjacent chambers cavities can either remain free and unused in the installed state or, if necessary, also as cable ducts or the like. Be used.

It is within the scope of the invention if receiving hollow chambers are not completely, but only predominantly surrounded by fire protection material chambers.

According to the invention, therefore, at least a small part of the wall of a hollow receiving chamber form part of the outer wall of the multi-chamber hollow profile, as long as the vast majority of the wall of the receiving hollow chamber

Fire protection material chambers adjacent or at the same time forms their wall. This technical construction is illustrated by way of example in FIGS. 6, 6a, 6b, in which a rectangular hollow section (FIG. 6) or circular (FIG. 6a, 6b) receiving hollow chamber lies in the cross-sectional view at the outer edge of the multi-chamber hollow profile, but at three of four sides (FIG. 6) or over (almost) the entire circumference (FIG. 6 a, 6 b) adjoins at least one fire protection material chamber. According to the invention, the outer wall of the multi-chamber hollow profile recesses, indentations or bulges, claws, hooks, clips or the like

Have fastening aids that facilitate the installation of the profile in a frame or more generally a fire protection structure or for the attachment of

Frame parts or general parts of a fire protection structure on

Can serve multi-chamber hollow profile or vice versa. The multi-chamber hollow profile according to the invention can be produced or assembled in different ways. For many applications, it is advantageous to mold or manufacture the unfilled multi-chamber hollow profile in one piece from a single wall material. All known production techniques, in particular in the field of polymer technology, can be used for this purpose. By way of example, the extrusion process or the injection molding process are specified. As a modern technology, the production of particularly complex components with the help of SD printers is available.

As already explained above, transverse to the longitudinal extent of a

Multi-chamber hollow profiles extending receiving hollow chambers for receiving cables or fasteners such as bolts or screws before the

Filling of fire protection material in the fire protection material chamber (s) by inserting pieces of pipe with impermeable to the fire wall material (which may also be porous, mesh or mesh-like) in suitable holes or openings in opposite areas of the outer wall and, if necessary. In interior walls within the Multi-chamber hollow sections are formed. These

Pipe pieces are advantageously made of plastic or metal and may optionally protrude beyond the outer walls of the multi-chamber hollow profile. This allows connection to other frame parts or general parts of a fire protection structure e.g. by gluing, welding and / or clipping.

This technique is particularly suitable for oblong or planar

Multi-chamber hollow profiles with arranged transversely to the longitudinal or surface extension receiving hollow chambers. For many other applications with simply shaped hollow receiving chambers and fire protection material chambers these

Hollow chambers individually made and assembled for the desired multi-chamber hollow profile. In this case it is possible to combine different materials. For example, the inner walls can be made of polymers, while the outer wall of the multi-chamber hollow profile is made of metal.

The fire protection material chambers of the multi-chamber hollow profile are completely or partially filled with a fire protection material. If the filling is only partial takes place, it may be the inner lining of a hollow chamber with solid or liquid fire protection material. The fire protection material may be solid and dimensionally stable prior to introduction into the multi-chamber hollow profile according to the invention. It is then in the form of inserts or inserts, for example in the form of a cuboid, a polyhedron or a cylindrical rod in a

Cavity introduced, which thereby becomes the fire protection material chamber.

Alternatively, form unstable fire retardant materials or precursors thereof can be used, the advantage of which is the greater flexibility of their shape and thus their adaptability to complex shaped cavities or narrow gaps. These are, for example, kneadable precursor materials of a

Fire protection material used in the fire protection material chambers for

Hardening fire protection material, and pulverulent or liquid precursor materials of a fire protection material, which after filling particularly well in the

Distribute fire protection material chambers and harden in situ to the fire protection material.

Useful in the present invention are, inter alia, those in

DE 10 2012 220 176 A1 disclosed fire protection materials with at least two different water glasses and a further organic substance as C0 ₂ - donor to improve the intumescent behavior. Likewise, the fire protection materials disclosed in US 2014/0145104 A1 can be used with light, insulating film materials and water-absorbing fillers as well as fibers and / or thixotropic agents. Also usable are liquid

Fire protection materials based on water glass, as described in PL 402 681 A1

to be discribed. This list is not exhaustive. Rather, a multiplicity of different fire protection materials can be used according to the invention, in particular those described in WO 2015/079265 A2 of the Applicant.

In particular, materials with insulating or cooling fire protection properties can be introduced into the fire protection material chambers. In addition, they can also intumescent when using a corresponding fire protection material

Have properties. If intumescent fire protection materials are used, it is advantageous if the wall of the at least one receiving hollow chamber, at least where it adjoins at least one fire protection material chamber, is permeable to water vapor or liquids, in particular porous, so that in case of fire

foamed fire protection material can get into the interior of the receiving hollow chamber and there provides additional insulation.

The multi-chamber hollow profile according to the invention can have several

Fire protection material chambers have. The several fire protection material chambers can be filled according to the invention with various fire protection materials, which differ in their chemical composition or in their physical

Properties differ from each other. Different chemical

Compositions can cause a fire protection material to act more cooling or rather insulating. Physically, the fire protection materials can differ in their aggregate state of fine-grained powdery on gel-like to the one-part three-dimensional solid, by the grain size in the powder or in the structure of the three-dimensional solid. Also a porous structure is possible.

The invention also relates to a process for the preparation of a

Mehrkammerhohlprofils, which consists in producing a multi-chamber profile according to the invention of at least two hollow chambers and to fill in at least one hollow chamber fire protection material, in particular precursor materials of a

Combine fire protection material from a multi-component system to obtain a liquid mixture and to fill the liquid mixture in at least one hollow chamber and then allowed to harden therein, after which the finished

Multi-chamber hollow profile has at least one receiving hollow chamber and at least one fire protection material chamber.

The invention is explained in more detail below with reference to exemplary embodiments, which are illustrated in the figures.

Fig. 1a is a schematic view of a multi-chamber hollow profile after a first

Embodiment of the invention;

Fig. 1b is a schematic view of a multi-chamber hollow profile after one

second embodiment of the invention; Fig. 2 is a schematic view of a multi-chamber hollow profile according to a third embodiment of the invention in a state before and after filling with fire protection material and before and after insertion of a cable in the inner receiving hollow chamber;

Fig. 3 is a schematic view of a device according to the invention

Multi-chamber hollow profile according to a fourth embodiment of the invention in a state before and after filling with fire protection material and before and after the insertion of a cable in the inner receiving hollow chamber;

Fig. 4 is a schematic view of a device according to the invention

Multi-chamber hollow profile according to a fifth embodiment of the invention, before and after filling with fire protection material and before and after

Inserting a plurality of cables into the internal receiving hollow chamber;

Fig. 5 is a schematic representation of a method for producing a

According to the invention multi-chamber hollow profile after a sixth

Embodiment of the invention;

5a and 5b are schematic representations of a method for producing a multi-chamber hollow profile according to the invention according to two different

Variants of the sixth embodiment of the invention;

Fig. 6 is a schematic representation of a device according to the invention

Multi-chamber hollow profile according to a seventh embodiment of the invention; 6a and 6b are schematic representations of an inventive

Multi-chamber hollow profiles according to two different variants of the seventh

Embodiment of the invention;

Fig. 7 is a schematic illustration of the invention

Multi-chamber hollow sections according to three further embodiments of the

Invention each in a state before and after filling with

Fire protection material;

Fig. 8 is a schematic representation of a method for producing a

according to the invention multi-chamber hollow profile after eighth

Embodiment of the invention;

FIG. 9 is a schematic illustration of a method of making a

inventive multi-chamber hollow profile after a ninth

Embodiment of the invention; 9a and 9b are schematic representations of the final result of a method for producing a multi-chamber hollow profile according to the invention according to two different variants of the ninth embodiment of the invention; Fig. 10 is a schematic representation of the invention

Multi-chamber hollow profiles according to further embodiments of the invention; Fig. 1 1 illustrates schematically a further production method of a

inventive multi-chamber hollow profile;

FIG. 12 illustrates a variant of the manufacturing method according to FIG. 11; FIG.

Fig. 13 schematically illustrates a window frame profile with an inserted

inventive multi-chamber hollow profile;

Fig. 14 schematically illustrates a multi-chamber hollow profile having an angular (L-shaped) cross section; and

FIG. 15 shows a window frame profile comprising two connected hollow profiles with one inserted into a receiving space between the hollow profiles

Multi-chamber hollow section.

Exemplary embodiments FIGS. 1 a and 1 b show the two essential basic configurations of the invention

Multi-chamber hollow profile 10 according to the invention.

1a shows a front side of a multi-chamber hollow profile 10 according to the invention with a rectangular in cross-section, completely filled with fire protection material 20 fire protection material chamber 12, in the interior of which a parallel to

Fire protection material chamber 12 is arranged and arranged in the longitudinal direction completely enclosed by this receiving hollow chamber 14. The walls 10a, 14a of the two hollow chambers 12, 14 are parallel to each other. The outer wall 10a of the fire protection material chamber 12 simultaneously forms the outer wall 10a of the

Multi-chamber hollow profile 10. It extends parallel to the main axis of a

Glazing frame, in which the multi-chamber hollow section 10 is to be used (see Fig. 13). The inner wall 14a of the fire protection material chamber 12 simultaneously forms the wall 14a of the receiving hollow chamber 14. The end faces of both hollow chambers 12, 14 and thus of the multi-chamber hollow profile 10 lie in the same plane and perpendicular to the main axis. For example, cables can be guided through the internal receiving cavity 14 (see FIGS. 2 to 4).

The further figures show in each case further embodiments of the invention, wherein the description mainly refers to differences from the respective preceding embodiments and the same reference numerals are used for the same or similar acting features. Fire protection material 20 is represented in each case by an autenschraffur.

Fig. 1 B shows an embodiment in which three circular in cross-section

Recording hollow chambers 14 completely within a cuboid

Fire protection material chamber 12 are located. In this embodiment, the

Main axis of the three receiving hollow chambers 14 rotated by 90 ° relative to the main axis of the fire protection material chamber 12. The front end sides of the receiving hollow chambers 14 are located within the visible in Fig. 1 B front portion of the wall 10 a of the fire protection material chamber 12, the same time as in Fig. 1 a the Outer wall 10a of the multi-chamber hollow section 10 forms. The receiving hollow chambers 14 extend in the embodiment to the back of the outer wall 10a of the multi-chamber hollow section 10 (not visible in Fig. 1 b). This embodiment is suitable for 14 in their receiving hollow chambers bolts for connecting two

To receive frame profile parts, between which the multi-chamber hollow section 10 is inserted.

The fire barrier material 20 impermeable walls 14a of the receiving hollow chambers 14 prevent penetration of fire protection material 20 from the fire protection material chamber 12 in the receiving hollow chambers fourteenth

In an alternative embodiment, the receiving hollow chambers 14 do not completely penetrate the multi-chamber hollow profile 10, but only provide bores (blind holes) provided with walls 14a with a limited depth. In this case, the hollow receiving chambers 14 can receive bolts and bolts from the accessible front end / or take screws that are attached only on one side to a frame profile part, so as to make a fixation of the multi-chamber hollow section 10 on the frame profile. On the non-visible back of the multi-chamber hollow section 10 corresponding blind hole receiving hollow chambers 14 may be present, so that in this way on the multi-chamber hollow section 10 two frame parts can be connected to each other without one through the

Multi-chamber hollow section 10 extending therethrough, continuous heat-conducting connection between the two frame profile parts. Not shown is an alternative embodiment, in which at least one parallel and at least one perpendicular to the main axis of the multi-chamber hollow profile

extending receiving hollow chamber is provided.

FIG. 2 shows a further embodiment according to the invention of the multi-chamber hollow profile 0 according to the invention in cross-section perpendicular to its main axis. The

Multi-chamber hollow section 10 comprises an outer wall 10a with a square profile and five hollow chambers. Four hollow chambers consist in cross section of the same

Segments of a square. Together with their outer walls they form the outer wall 10a of the multi-chamber hollow profile 10 and they are replaced by four

Inner walls 18 separated from each other. By the complete filling with Fire materia! 20, they are four fire protection material chambers 12. Within the formed from the four fire protection material chambers 12 hollow profile square section is a receiving hollow chamber 14 with a circular cross-section wall 14a, in which no fire protection material 20 is.

All of the hollow chambers 12, 14 have walls 14, 14a impermeable to the fire protection material 20, e.g. made of glass fiber reinforced plastic (GRP) on which the outer wall 10a is made. Through the centrally located receiving hollow chamber 14, a flat cable 16 is guided. The flat cable 16 is protected in this way in a fire for a period of time from the heat and against its destruction. Instead of continuous inner walls 18, the

Divide the interior of the multi-chamber hollow section 10 in four fire protection material chambers 12, the receiving hollow chamber 14 could also with the help of local

Abstützstegen or the like on the inside of the outer wall 10 a of

Multi-chamber hollow sections 10 are supported within a single fire protection material chamber 12.

The embodiment of FIG. 3 illustrates a simplified modification of

The multi-chamber hollow section 10 comprises an outer wall 10a in the form of a profile with a square cross-section and a concentrically arranged in its interior receiving hollow chamber 14 in the form of an inner tube, wherein the inner tube for fire protection material 20 impermeable wall 14a of the recording Hollow chamber 14 forms. In the cavity between the inner tube and the outer wall 10 a of the multi-chamber hollow section 10 is a liquid, mixed together of two components precursor material of

Fire protection material 20, which cures in situ and then gives the entire assembly dimensional stability. In this arrangement, the outer wall 10 a of the multi-chamber hollow profile 10 simultaneously forms the outer wall 10 a of

Fire protection material chamber 12, and introduced as a separate component inner tube is at the same time an inner wall 14a of the fire protection material chamber 12 and an impermeable to fire protection material 20 wall 14a of the receiving hollow chamber fourteenth

In the embodiment according to the invention according to FIG. 4, this is

Multi-chamber hollow profile 10 from five hollow chambers. For insertion in a

Frame profile with parallel spaced profile inner sides is the outer wall 10a of the Multi-chamber hollow profile 10 formed in cross-section at right angles. In the interior, a likewise rectangular receiving hollow chamber 14 is provided, which by four inner walls 18 against the inside of the outer wall 10 a of

Multi-chamber hollow section 10 is supported and thereby fixed locally. The

Inner walls 18 extend continuously parallel to the outer wall 10a and to

Receiving hollow chamber 14 and support the latter thus over its entire length at the inside of the outer wall 10a of the multi-chamber hollow section 10, while they divide the outer hollow chamber into four individual hollow chambers; but they could also be interrupted and only in some places for a support of the

Accommodate receiving hollow chamber 14 on the inside of the outer wall 10 a. The

Cavities between the receiving hollow chamber 14 and the outer wall 10a of the multi-chamber hollow section 10 are filled with fire protection material 20 and thereby form four fire protection material chambers 12. The receiving hollow chamber 14 has the same function as the receiving hollow chamber 14 according to the first embodiment (Fig ) and takes in the illustrated embodiment, four flat cable 16, which are protected by the surrounding fire protection material chambers 12 from external influences.

Fig. 5 shows a process for producing a further invention

Embodiment in which several aspects of the invention are realized simultaneously. The multi-chambered hollow profile 10 as a whole comprises an outer wall 10a, e.g. made of a metal, and an inner profile, e.g. from a thermoset or thermoset, which is configured in a lattice-shaped cross-section of several inner walls 18a. In a first step, the inner profile is inserted into the outer wall 10 a, whereby a total of 9 hollow chambers are formed, which are separated from each other by inner walls 18 impermeable to fire protection material 20. Subsequently, six outer hollow chambers are filled with a first fire protection material 20a and two further hollow chambers with a second fire protection material 20b. These 8 individually filled fire protection material chambers 12 form the outer region of the multi-chamber hollow profile 10 when viewed in cross-section. The inner hollow chamber initially remains empty and constitutes the receiving hollow chamber 14 of the

Multi-chamber hollow section 10 is.

Fig. 5a and 5b are each schematic representations of a method for

Production of a multi-chamber hollow profile 10 according to the invention after two different variants of the sixth embodiment of the invention. The rectangular in cross-section outer wall 10a of the multi-chamber hollow section 10 is provided on its inside with grooves 24 for fixing an inner profile with a grid-like arrangement of inner walls 18a (Fig. 5a) or of individual inner walls 18b (Fig. 5b). The inner walls 18b may be used or positioned as needed, for example, to form a receiving hollow chamber 14 for a closing bar of a door frame profile. The inner walls 18b and the inner wall grid 18a may be made of a material having a lower melting point than the outer wall 10a as long as the outer wall 10a enclosing the fire protection material chambers 12 is sufficiently heat-resistant. The outer wall 10a has in FIGS. 5A and 5B each have the same arrangement of grooves 24, whereby a flexible design of the multi-chamber hollow profile 10 with differently arranged as required inner walls 18a, 18b is made possible. Eight of the nine hollow chambers are filled as fire protection material chambers 12 with the same fire protection material 20 and form in the cross-sectional view substantially the outer region of the multi-chamber hollow profile 10. The remaining hollow chamber forms a receiving hollow chamber fourteenth , which is not completely surrounded by fire protection material chambers 12 in this case, but at the on a

Narrow side no fire protection material chamber 12 between the receiving hollow chamber 14 and the outer wall 10a of the multi-chamber hollow section 10 is provided. This construction may be required if cables are in a near-edge

arranged receiving hollow chamber 14 must be performed. Despite the immediate adjacency to the outer wall 10a of the multi-chamber hollow section 10 also provides this embodiment by the existing eight

Fire protection material chambers 12, which surround the receiving hollow chambers 14 predominantly, in the case of a fire still sufficient protection in the

Receiving hollow chamber 14 guided cables or other components inserted therein from the ingress of heat.

6a and 6b are schematic representations of an inventive

Multi-chamber hollow section 10 after two different variants of the seventh

Embodiment of the invention. The receiving hollow chambers 14 have in this embodiment outer walls with a part-circular (Fig. 6a) or circular (Fig. 6B) are cross-section and are from a portion of the outer wall 10a of

Multi-chamber hollow profile 10 from accessible (Fig. 6a) or in the immediate vicinity of the outer wall 10a arranged (Fig. 6b) to facilitate the creation of an access. Fig. 7 shows three embodiments according to the invention, in each of which

Multi-chamber hollow profiles 10 with i.W. square outer contour (cross section) are provided with circular in cross-section or elliptical inner receiving hollow chambers 14. The receiving hollow chambers 14 are supported on the inside of the outer wall 10a of the multi-chamber hollow profile 10 as in FIGS. 2, 4, in each case with the aid of continuous inner walls 18 (which may also be only local support webs) and are each completely surrounded by fire protection material chambers 12.

Fig. 8 shows an embodiment according to the invention, in which a

Multi-chamber hollow section 10 consists of three flat in cross-section, stacked cuboid hollow chambers, of which form the two outer hollow chambers fire protection material chambers 12, which include an inner hollow chamber as receiving hollow chamber 14 between them. The multi-chamber hollow section 10 is provided with four spacers or fixation pieces, so that it can be inserted together with spacers or fixing pieces in a correspondingly large trained box-shaped envelope. The envelope profile may be a part of a fire protection frame into which the described multi-chamber hollow profile 10 is inserted as Einschiebling (not shown). However, the envelope profile can also form the outer wall 10a of a complex multi-chamber hollow profile 10 ', which is composed of the previously described multi-chamber hollow profile 10 as inner profile and of a box-shaped envelope profile (outer wall 10a) and is provided as a whole for insertion into a fire protection frame. The spacers are for the safe

Positioning of the envelope profile (outer wall 10a) not completely filling inner multi-chamber hollow profile 10. The inner multi-chamber hollow section 10 may consist with its spacers made of a metal. The cuboidal envelope profile forming the outer wall 10a of the complex multi-chamber hollow profile 10 'can be made of a glass fiber reinforced plastic (GRP). Other materials, as disclosed generally herein for the walls of multi-chamber hollow section 10 of the present invention, are alternatively possible. Fig. 9 shows an embodiment of the invention, in which the technical

Possibilities of the present invention in the application as a modular or modular system are exemplified. The multi-chamber hollow profile 10 comprises an outer wall 10 a, which defines the outer shape of the multi-chamber hollow profile 10. In this outer wall 10a twelve elongated filling elements are each introduced with a hexagonal cross-section. Six of the elements (dark color) consist of a dimensionally stable solid fire protection material 20a with an enveloping wall and are inserted into the cavity enclosed by the outer wall 10a.

Alternatively, in a variant, not shown, dimensionally stable filling elements made of fire protection material 20a without its own enveloping profile could also be used. Six other elements form hollow chambers with walls made of a polymer and initially remain empty. They are filled after the introduction of all twelve elements in the space enclosed by the outer wall 10a cavity with a fire protection material 20b, either in the form of six hexagonal shaped solid

Brandschutzmaterialstäben, or by pouring a liquid or powdery precursor material of at least two mixed components in the six hollow chambers, which then within the hollow chambers to a solid

Fire protection material 20b hardens and the hollow chambers filled in this way

Fire protection material chambers 12 makes. The 12 filling elements include between them 5 unfilled hollow chambers, of which at least one is provided as a receiving hollow chamber 14 for the subsequent recording of cables, fittings, closing rods or the like; All unfilled receiving hollow chambers 14 are each predominantly surrounded by fire protection material chambers 12. The remaining cavities of the

Multi-chamber hollow sections 10 form empty chambers.

9a and 9b are schematic representations of two different variants of the ninth embodiment of the invention, in which filling elements

be arranged differently and filled or have an octagonal cross-section (Fig. 9b).

10 shows a multiplicity of possible further embodiments of the invention

As in FIGS. 2 to 9, FIG. 10 shows the profiles as a cross section through the longitudinal profile. The first two

Multi-chamber hollow profiles from the left in the second row can either be in an outer wall of a complex multi-chamber hollow profile or in a receiving space a fire protection structure, for example, in a metal hollow profile of a window frame, are used.

Fig. 1 1 illustrates schematically a further production method of a

According to the invention multi-chamber hollow profile 10 of two halves 10b, 10c, which are connected as fire protection material chambers 12 with fire protection material 20, including two receiving hollow chambers 14 together.

FIG. 12 illustrates a variant of the manufacturing method according to FIG. 1 1, in which both halves 10b, 10c have fire wall material 20 without wall on the surfaces facing each other, so that after the connection of the two halves 10b, 10c a single fire protection material chamber 12 accompanies a uniform filling of fire protection material 20 is present. The halves 10b, 10c of FIGS. 11 and 12 could also be different

Fire protection materials included.

Fig. 13 schematically illustrates a window frame profile 22 as an example of a

Fire protection structure with a receiving space 22a and a loose in the

Reception chamber 22 a introduced multi-chamber hollow section 10 according to the invention with an outer wall 10 a. The multi-chamber hollow profile 10 comprises two receiving hollow chambers 14 which are surrounded by a wall 14a which is impermeable to fire protection material 20 and which are separated from one another by a wall 14a and completely surrounded by a fire protection material chamber 12.

For fastening the multi-chamber hollow profile 10 in the receiving space 22 a of

Window frame profiles 22 may include the latter and / or first fastening aids, such as grooves (FIGS. 5a, 5b), claws or hooks (not shown). 14 schematically shows a further exemplary embodiment of a multichamber wood profile 10 according to the invention with an angular (L-shaped) cross section which is adapted to a receiving space of a corresponding frame profile (not shown). A transversely to the longitudinal direction of the multi-chamber hollow section 10 extending receiving hollow chamber 14 is provided for the implementation of fastening bolts. FIG. 15 schematically shows a further exemplary embodiment of a multi-chamber hollow profile 10 according to the invention, which is introduced into a window frame profile 22. The window frame profile 22 comprises two metal profiles 30, between which a

Receiving space 22a exists in which the multi-chamber hollow section 10 according to the invention is used. The receiving space 22a has a rectangular cross-section, which is bounded on its broad sides by the two metal profiles 30 and which is open at its narrower longitudinal sides. The metal profiles 30 are through

Mounting bolts 28 held at a distance, which are welded to the metal profiles 30 or otherwise connected.

Similar to the exemplary embodiment from FIG. 1 b, the multi-chamber hollow profile 10 comprises a fire protection material chamber 12 filled with fire protection material 20 and transversal receiving hollow chambers 14 into which the fastening bolts 28 are inserted. The receiving hollow chambers 14 have walls 14 a, which are impermeable to the fire protection material 20. The metal profiles 30 may be potted with a fire protection material 20a, or fire protection material 20a may be inserted in the metal profiles 30 in the form of a solid billet or insert.

Claims

claims

Multi-chamber hollow profile with an outer wall (10 a), the at least one

Fire protection material chamber (12), which completely or partially with

Fire materia! (20, 20a, 20b) is filled, and at least one receiving hollow chamber (14) comprises, for use in fire protection structures, in particular in fire-resistant frame for fire protection elements, for example as a use or Einschiebling in a fire-resistant

Glazing frame (22),

characterized in that the at least one receiving hollow chamber (14):

is arranged inside the multi-chamber hollow profile (10),

completely or predominantly of the at least one

Fire protection material chamber (12) is surrounded;

has at least one end face, which is arranged in the region of the outer wall (10a) or the end sides of the multi-chamber hollow profile (10), so that the at least one receiving hollow chamber (14) from outside the

Multi-chamber hollow profile (10) is accessible; and

is separated by a for the fire protection material (20, 20a, 20b) at least substantially impermeable wall (14a) of the at least one, they completely or predominantly surrounding fire protection material chamber (12). 2, multi-chamber hollow profile according to claim 1,

characterized in that

the at least one receiving hollow chamber (14) at least one open

End face for receiving components in the receiving hollow chamber (14). 3. multi-chamber hollow profile according to claim 2,

characterized in that

the open end can be closed with at least one lid. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

the receiving hollow chamber (14) has at least one cross-sectional constriction for throttling a flow of hot gases in case of fire.

Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

the inside of the wall (14a) of the receiving hollow chamber (4) at least partially has a three-dimensional structuring with macroscopic irregularities, in particular grooves, ribs or a grain.

Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

the wall (14a) of the at least one receiving hollow chamber (14) and the wall of the at least one fire protection material chamber (12) extend parallel to the main axis of the multi-chamber hollow profile (10) and end sides of the at least one receiving hollow chamber (14) substantially parallel to end faces the at least one fire protection material chamber (12) run.

Multi-chamber hollow profile according to one of claims 1 - 5,

characterized in that

the wall (14a) of the at least one receiving hollow chamber (14) extends perpendicularly, transversely or obliquely to the main axis of the multi-chamber hollow profile (10) and the wall of the at least one fire protection material chamber (12) extends parallel to the main axis of the multi-chamber hollow profile (10) and the End sides of the receiving hollow chamber (14) are arranged substantially parallel to the main axis of the multi-chamber hollow profile (10).

Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

the multi-chamber hollow profile (10) forming walls (10a, 14a, 18, 18a, 18b) are integrally formed from a single material.

Multi-chamber hollow profile according to one of claims 1 - 7,

characterized in that the multi-chamber hollow profile (10) forming walls (10a, 14a, 18, 18a, 18b) are formed in several parts of one or more different materials.

10. multi-chamber hollow profile according to claim 9,

characterized in that at least one fire protection material chamber (12) and / or at least one receiving hollow chamber (14) is inserted as a separate filling element in the from the outer wall (10a) of the multi-chamber hollow profile (10) enclosed interior.

1 1. Multi-chamber hollow profile according to one of claims 8 to 10,

characterized in that

the materials of the walls (10a, 14a, 18, 18a, 18b) are selected from polymers, glass fiber or carbon reinforced plastic and metals.

12. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

at least one fire protection material chamber (12) completely or partially - with a solid and dimensionally stable fire protection material (20, 20a, 20b) is filled and / or

with a kneadable, liquid, gelatinous or powdery

Precursor material of a fire protection material (20, 20a, 20b) is filled, which is cured in this fire protection material chamber (12) for fire protection material (20, 20a, 20b).

13. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

a plurality of fire protection material chambers (12) are provided, which with

various fire protection materials (20, 20a, 20b) are filled, which differ in their chemical composition and / or in their physical properties from each other.

14. multi-chamber hollow profile according to claim 12 or 13,

characterized in that

the fire protection material is a multi-component system, before filling the at least one fire protection material chamber (12) has been mixed from precursor materials into which at least one fire protection material chamber (12) has been cast and cured there.

15. Multi-chamber hollow professional! according to one of the preceding claims,

characterized by fastening aids for fastening the

Multi-chamber hollow profile (10) in a receiving space of a fire protection structure.

16. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

the at least one receiving hollow chamber (14) is designed as a blind hole.

17. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that

the at least one receiving hollow chamber (14) is designed as a passage through the multi-chamber hollow profile (10) and is accessible from two opposite end sides.

18. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that the outer wall (10a) has a polygonal cross section.

19. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that the at least one receiving hollow chamber (14) has a polygonal cross section.

20. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that the at least one fire protection material chamber (12) has polygonal cross section.

21. Multi-chamber hollow profile according to one of the preceding claims,

characterized in that the material and the thickness of the outer wall (10a) are selected so that the outer wall (10a) up to a temperature of the outer wall (10a) of at least 70 ° C, in particular to at least 100 ° C for the fire protection material (20 , 20a, 20b) and its components remains impermeable and only at the high temperatures of a fire, the release and evaporation of cooling water from the

Fire protection material (20, 20a, 20b) allows.

Fire protection structure with a receiving space (22a) and one in the

Reception chamber (22 a) introduced Mehrkammerhohiprofii (10) according to any one of the preceding claims.

Fire protection structure according to claim 22,

characterized in that the Mehrkammerhohiprofii (10) is loosely inserted into the receiving space (22a).

Fire protection structure according to claim 22,

characterized in that the Mehrkammerhohiprofii (10) by gluing, clamping, screwing, claws, clips, notches and / or by means of cylinders or bolts in the receiving space (22a) is fixed.

Fire protection structure according to one of claims -22-24,

characterized by a metal frame hollow profile (22) whose cavity forms the receiving space (22a).

Method for producing a multi-chamber hollow profile (10) according to one of

Claims 1 - 21

characterized in that it comprises the following steps:

-Making a multi-chamber hollow profile (10) of at least two

Hollow chambers without fire protection material; and

Filling of fire protection material (20, 20a, 20b) in at least one as

Fire protection material chamber (12) provided hollow chamber.

Method according to claim 26, characterized by the additional steps:

Mixing precursor materials for a fire protection material (20, 20a, 20b) from a multicomponent system into a liquid mixture, Filling the liquid mixture into at least one

Fire protection material chambers (12) provided hollow chamber and

- Allowing the filled mixture to cure to obtain the finished

Mehrkammerhohiprofils (10) with at least one receiving hollow chamber (14) and at least one fire protection material chamber (12).

Use of a multi-chamber hoisting profile (10) according to one of claims 1 to 21 as an insert or insertion of a fire protection structure, in particular a fire protection frame.