EP0077412A1 - Metal section for reinforcing plastics hollow sections, plastics hollow sections reinforced by such a metal section and a frame which is made of a plastics hollow section thus reinforced - Google Patents

Metal section for reinforcing plastics hollow sections, plastics hollow sections reinforced by such a metal section and a frame which is made of a plastics hollow section thus reinforced Download PDF

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Publication number
EP0077412A1
EP0077412A1 EP19810108517 EP81108517A EP0077412A1 EP 0077412 A1 EP0077412 A1 EP 0077412A1 EP 19810108517 EP19810108517 EP 19810108517 EP 81108517 A EP81108517 A EP 81108517A EP 0077412 A1 EP0077412 A1 EP 0077412A1
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EP
European Patent Office
Prior art keywords
profile
metal profile
hollow
metal
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19810108517
Other languages
German (de)
French (fr)
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EP0077412B1 (en
Inventor
Ulrich Dettmar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karlstadter Fenster- U Elementebau & Co KG GmbH
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Karlstadter Fenster- U Elementebau & Co KG GmbH
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Priority to DE8181108517T priority Critical patent/DE3172248D1/en
Priority to EP19810108517 priority patent/EP0077412B1/en
Publication of EP0077412A1 publication Critical patent/EP0077412A1/en
Application granted granted Critical
Publication of EP0077412B1 publication Critical patent/EP0077412B1/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/06—Single frames
    • E06B3/08—Constructions depending on the use of specified materials
    • E06B3/20—Constructions depending on the use of specified materials of plastics
    • E06B3/22—Hollow frames
    • E06B3/221—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity
    • E06B3/222—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity with internal prefabricated reinforcing section members inserted after manufacturing of the hollow frame
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/06—Single frames
    • E06B3/08—Constructions depending on the use of specified materials
    • E06B3/20—Constructions depending on the use of specified materials of plastics
    • E06B3/22—Hollow frames
    • E06B3/221—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity
    • E06B3/222—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity with internal prefabricated reinforcing section members inserted after manufacturing of the hollow frame
    • E06B2003/225—Means for stabilising the insert

Definitions

  • the invention relates to a metal profile for reinforcing plastic hollow profiles, plastic hollow profiles reinforced by such metal profiles and frames, in particular window frames and door frames, which are at least partially made from such reinforced plastic hollow profiles.
  • Hollow plastic profiles are used in particular in the field of building construction for the production of frame elements, in particular window frames and door frames.
  • Such plastic Hollow profiles are characterized in economic terms by being particularly inexpensive and in technical terms by good thermal characteristics, especially by low thermal conductivity, and by weathering and corrosion resistance superior to other materials.
  • plastic hollow profiles are disadvantageous in terms of their low bending rigidity and torsional rigidity.
  • the invention has for its object to provide a metal profile for the more effective reinforcement of hollow plastic profiles, that is, a metal profile that has improved bending stiffness and torsional rigidity and transfers this strength improved to the hollow plastic profile, one by one to insert inserted metal profile reinforced plastic hollow profile with improved stiffness characteristics and finally to create a frame element which, by using the stiffened plastic hollow profiles with one-sided suspension, has an improved torsional stiffness transversely to the frame plane and an improved bending stiffness in the plane of the frame plane.
  • the invention provides a metal profile which has the features mentioned in the characterizing part of patent claim 1.
  • the plastic hollow profile reinforced by such an inserted metal profile is characterized according to the invention in that the plastic hollow profile rests on the inside with at least one smooth, flat and unprofiled inner wall surface on at least one corrugated outer wall surface of the inserted metal profile.
  • the frame, in particular window frame or door frame, of the invention is characterized in that it contains a metal profile which reinforces the hollow plastic profile and in particular contains a reinforced hollow plastic profile with the features described above.
  • the metal profile can contain the stiffening bead running parallel to the longitudinal axis either only in one longitudinal wall of the profile or in several longitudinal walls or finally also in all longitudinal walls of the profile.
  • each longitudinal wall that is, based on the cross section of the profile, each leg of the profile, can have one or more such stiffening beads. If only one stiffening bead is formed in a wall, this stiffening bead does not have to be arranged in the middle of the height or width of the longitudinal wall, but can, for example, also run relatively close to an edge which is formed by this longitudinal wall.
  • stiffening beads running parallel to one another and parallel to the longitudinal axis of the metal profile are preferably designed such that they have the same cross-section to their longitudinal direction result in moderate corrugation of the longitudinal wall of the metal profile.
  • This corrugation can either extend over the entire width of the longitudinal wall or alternatively can remain limited to a partial region of such a longitudinal wall, so that the respective longitudinal wall has plane, strip-shaped wall regions in addition to a corrugated wall region extending over the entire axial length of the metal profile.
  • An improvement in the bending stiffness of the metal profile can already be achieved in the formation of only relatively flat beads.
  • the worst case is that only one flat bead is arranged in the middle of the longitudinal wall, based on its width, in a longitudinal wall of the metal profile.
  • An improvement in the bending stiffness that can be achieved with such a flat bead is achieved in that the flat bead is moved out of the center of the wall surface towards an edge.
  • the flat corrugation does little to improve the bending stiffness of the metal profile and practically nothing to improve the torsional stiffness of the metal profile. Much better results are achieved with relatively deep beads.
  • the metal profile therefore preferably has a clear depth of the stiffening bead or stiffening beads which is at least four times, preferably at least six times the material thickness of the metal profile.
  • “Clear depth” is understood to mean the distance from the outer surface of the wall of the metal profile adjacent to the bead to the lowest point of the base of the bead.
  • Such deep stiffening beads have significant advantages over the flat stiffening beads.
  • the deep corrugations result in a better bending stiffness and in particular a torsional stiffness of the metal profile. They effect for the metal profile a certain elasticity perpendicular to the longitudinal direction of the stiffening beads, whereby a particularly good connection of the metal profile to the hollow plastic profile is obtained. As a result, it is possible in particular to work with thinner material thicknesses than with a metal profile with a flat bead.
  • the deep stiffening beads are preferably designed such that they have a clear opening width to the outside, ie a clear distance from an outer bead edge to the opposite outer bead edge, which is at least equal to the clear depth of the stiffening bead. Furthermore, at least two of the deep stiffening beads are preferably formed side by side in at least one longitudinal wall of the metal profile in such a way that the two deep stiffening beads running side by side result in a continuous corrugation of the longitudinal wall.
  • the hollow plastic profiles reinforced with such metal profiles have an inner profile which is closed in cross-section and which has at least one completely flat and level non-profiled inner wall surface which bears against at least one corrugated wall of the metal profile, preferably against the corrugated metal profile wall provided with a deep double bead.
  • the hollow plastic profile, into which the metal profile provided with the deep beads is inserted or knocked in does not engage in any way in these beads, at least in the area in which the deep beads of the metal profile are formed.
  • This mechanical prestressing of the deeply corrugated metal profile in the hollow plastic profile can be brought about in that the metal profile is designed with a slight oversize in the relaxed state and is hammered into the hollow profile with little resilient deformation and / or that a cold metal profile is inserted into a uniformly heated hollow plastic profile and the result is obtained Insert structure is then cooled to room temperature. As a result, the plastic hollow profile is thermally shrunk onto the metal profile. In any case, a composite profile is achieved in this way, which cannot be achieved by positive engagement between a reinforcing metal profile and a complementarily hollow plastic profile.
  • This bond can be improved by exciting and fixing, in particular self-tapping metal screws, which are screwed from the outside through the plastic hollow profile into at least one wall of at least one stiffening bead.
  • the axis of the screw can run both in the direction of the depth of the bead, so that the screw passes through the sole of the bead, and also lie perpendicular to this direction, so that the screw passes through one or both side walls of the bead.
  • Frames made from such reinforced plastic hollow profiles for building construction are characterized by improved rigidity both in the case of forces acting transversely to the frame surface, for example wind forces, and in the case of forces which act in the plane of the frame, for example with regard to forces caused by the weight of the frame with one-sided suspension.
  • the metal profile which is open in cross section, essentially has the shape of a C profile.
  • the stiffening beads 4, 5 are not arranged in the middle of the longitudinal walls 2, 3, but in the region of the profile edges 6, 7, which the longitudinal surfaces 2 and 3 with the two longitudinal surfaces connecting longitudinal surface 8 form.
  • Two deep stiffening beads 9 and 10 are formed in the longitudinal surface 8, the depth of which is seven times the material thickness, that is to say the wall thickness of the metal profile.
  • the deep stiffening beads 9 and 10 are arranged in relation to one another in such a way that they form a uniform corrugation of the longitudinal surface 8.
  • the inner legs 11 and 12 of the metal profile 1 do not run at right angles to the longitudinal walls 2 and 3, but each enclose an angle of somewhat greater than 90 ° with these longitudinal walls. When such a metal profile is hammered into a rectangular plastic hollow profile, these side legs are slightly resiliently deformed, so that the metal profile sits in the plastic hollow profile under prestress. It should be noted that the illustration shown in FIG. 1 has not been exaggerated to scale, but rather for the sake of better visibility.
  • a second embodiment of a metal profile 1 ' is shown in FIG. 2, namely inserted into a hollow plastic profile 13.
  • the hollow plastic profile 13 for example a window frame profile, is only indicated in the cutout, since the overall design of such a hollow plastic profile is not the subject of the present application and Expert is familiar anyway.
  • the hollow plastic profile 13 has a cavity 14 which is enclosed by four perfectly flat inner wall surfaces 17 which are at right angles to one another.
  • the hollow profile 13 is thermally shrunk onto the metal profile 1 '.
  • the side legs or longitudinal walls 2 'and 3' of the metal profile 1 ' have no stiffening beads.
  • the inner legs 11 'and 12' of the metal profile 1 ' are arranged exactly at right angles to the longitudinal walls 2' and 3 '.
  • the longitudinal wall 8 'of the metal profile 1' has two deep stiffening beads 9, 10, each of which has a clear depth of approximately eight times the material thickness and a clear opening width of approximately 15 times the material thickness.
  • the beads 9 and 10 open to or on the completely flat inner wall surface 15 of the cavity 14 of the plastic hollow profile 13. No projections are formed on this inner wall surface 15 which engage in the beads 9 or 10.
  • the bond between the metal profile 1 'and the plastic hollow profile 13 is defined by a Metallschrau - be 16 amplifies.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wing Frames And Configurations (AREA)
  • Door And Window Frames Mounted To Openings (AREA)

Abstract

1. Metal section for reinforcing plastics hollow sections, having at least one stiffening bead formed in at least one of its longitudinal walls, oriented parallel to the longitudinal axis of the section protruding in the direction of the interior of the hollow metal section and being open to the outside thereof and having a length which is at least substantially equal to the length of the hollow metal section, characterized in that the stiffening bead (9; 10) as measured from the outside has a depth of at least four times, especially at least six times the thickness of the sheet metal gage of the section, and in that said section is made to such a dimension that it contacts the hollow plastics section when mounted in said hollow plastics section under spring elastic deformation of said stiffening bead.

Description

Die Erfindung betrifft ein Metallprofil zur Verstärkung von Kunststoffhohlprofilen, durch solche Metallprofile verstärkte Kunststoffhohlprofile sowie Rahmen, insbesondere Fensterrahmen und Türrahmen, die zumindest teilweise aus solchen verstärkten Kunststoffhohlprofilen hergestellt sind.The invention relates to a metal profile for reinforcing plastic hollow profiles, plastic hollow profiles reinforced by such metal profiles and frames, in particular window frames and door frames, which are at least partially made from such reinforced plastic hollow profiles.

Kunststoffhohlprofile werden insbesondere im Bereich der Hochbautechnik zur Herstellung von Rahmenelementen, insbesondere Fensterrahmen und Türrahmen, verwendet. Solche Kunststoffhohlprofile zeichnen sich in wirtschaftlicher Hinsicht durch besondere Preisgünstigkeit und in technischer Hinsicht durch gute thermische Kenndaten, speziell durch eine geringe Wärmeleitfähigkeit, und durch eine anderen Werkstoffen überlegene Verwitterungsbeständigkeit und Korrosionsbeständigkeit aus.Hollow plastic profiles are used in particular in the field of building construction for the production of frame elements, in particular window frames and door frames. Such plastic Hollow profiles are characterized in economic terms by being particularly inexpensive and in technical terms by good thermal characteristics, especially by low thermal conductivity, and by weathering and corrosion resistance superior to other materials.

Nachteilig sind die Kunststoffhohlprofile jedoch hinsichtlich ihrer geringen Biegesteifigkeit und Verwindungssteifigkeit.However, the plastic hollow profiles are disadvantageous in terms of their low bending rigidity and torsional rigidity.

Es ist bekannt, die Biegesteifigkeit und Verwindungssteifigkeit solcher Kunststoffhohlprofile durch Einschieben offener, meist U-förmiger Metallprofile zu verbessern. Die erzielbaren Verbesserungen sind jedoch nicht zufriedenstellend, da einerseits die eingeschobenen Metallprofile selbst eine nicht ausreichende Biegesteifigkeit und Verwindungssteifigkeit aufweisen und andererseits der durch das Einschieben des Metallprofils in das Kunststoffhohlprofil bewirkte Verbund nicht schlüssig genug ist, um die Biegesteifigkeit und die Verwindungssteifigkeit des Gesamtprofils, also des durch das eingeschobene Metallprofil verstärkten Kunststoffhohlprofils in dem theoretisch zu erwartenden Ausmaß zu verbessern.It is known to improve the bending stiffness and torsional stiffness of such hollow plastic profiles by inserting open, usually U-shaped metal profiles. However, the improvements that can be achieved are not satisfactory, since on the one hand the inserted metal profiles themselves do not have sufficient bending stiffness and torsional stiffness, and on the other hand the bond created by inserting the metal profile into the hollow plastic profile is not conclusive enough to ensure the bending stiffness and the torsional stiffness of the overall profile, i.e. the to be improved by the inserted metal profile reinforced plastic hollow profile to the extent that can theoretically be expected.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Metallprofil zur effektiveren Verstärkung von Kunststoffhohlprofilen zu schaffen, das heißt ein Metallprofil, das in sich eine verbesserte Biegesteifigkeit und Verwindungssteifigkeit aufweist und diese Festigkeit verbessert auf das Kunststoffhohlprofil überträgt, ein durch ein solches eingeschobenes Metallprofil verstärktes Kunststoffhohlprofil mit verbesserten Steifigkeitskenndaten zu schaffen und schließlich ein Rahmenelement zu schaffen, das durch Verwendung der versteiften Kunststoffhohlprofile bei einseitiger Aufhängung eine verbesserte Verwindungssteifigkeit quer zur Rahmenebene und eine verbesserte Biegesteifigkeit in der Ebene der Rahmenebene aufweist.Based on this prior art, the invention has for its object to provide a metal profile for the more effective reinforcement of hollow plastic profiles, that is, a metal profile that has improved bending stiffness and torsional rigidity and transfers this strength improved to the hollow plastic profile, one by one to insert inserted metal profile reinforced plastic hollow profile with improved stiffness characteristics and finally to create a frame element which, by using the stiffened plastic hollow profiles with one-sided suspension, has an improved torsional stiffness transversely to the frame plane and an improved bending stiffness in the plane of the frame plane.

Zur Lösung dieser Aufgabe schafft die Erfindung ein Metallprofil, das die im kennzeichnenden Teil des Patentanspruchs 1 genannten Merkmale aufweist.To achieve this object, the invention provides a metal profile which has the features mentioned in the characterizing part of patent claim 1.

Das durch ein solches eingeschobenes Metallprofil verstärkte Kunststoffhohlprofil ist gemäß der Erfindung dadurch gekennzeichnet, daß das Kunststoffhohlprofil innen mit mindestens einer glatten, ebenen und unprofilierten Innenwandfläche an mindestens einer gesickten Außenwandfläche des eingeschobenen Metallprofils anliegt.The plastic hollow profile reinforced by such an inserted metal profile is characterized according to the invention in that the plastic hollow profile rests on the inside with at least one smooth, flat and unprofiled inner wall surface on at least one corrugated outer wall surface of the inserted metal profile.

Der Rahmen, insbesondere Fensterrahmen oder Türrahmen, der Erfindung schließlich ist dadurch gekennzeichnet, daß er ein das Kunststoffhohlprofil verstärkendes Metallprofil enthält und insbesondere ein verstärktes Kunststoffhohlprofil mit den vorstehend beschriebenen Merkmalen enthält.Finally, the frame, in particular window frame or door frame, of the invention is characterized in that it contains a metal profile which reinforces the hollow plastic profile and in particular contains a reinforced hollow plastic profile with the features described above.

Das Metallprofil kann die parallel zur Längsachse verlaufende Versteifungssicke entweder nur in einer Längswand des Profils oder in mehreren Längswänden oder schließlich auch in allen Längswänden des Profils ausgebildet enthalten. Außerdem kann jede Längswand, das heißt, bezogen auf den Querschnitt des Profils, jeder Schenkel des Profils, eine oder mehrere solcher Versteifungssicken aufweisen. Bei Ausbildung nur einer Versteifungssicke in einer Wand braucht diese Versteifungssicke nicht in der Mitte der Höhe bzw. Breite der Längswand angeordnet zu sein, sondern kann beispielsweise auch relativ dicht an einer Kante verlaufen, die durch diese Längswand gebildet wird.The metal profile can contain the stiffening bead running parallel to the longitudinal axis either only in one longitudinal wall of the profile or in several longitudinal walls or finally also in all longitudinal walls of the profile. In addition, each longitudinal wall, that is, based on the cross section of the profile, each leg of the profile, can have one or more such stiffening beads. If only one stiffening bead is formed in a wall, this stiffening bead does not have to be arranged in the middle of the height or width of the longitudinal wall, but can, for example, also run relatively close to an edge which is formed by this longitudinal wall.

Bei Ausbildung von mehr als einer Versteifungssicke in einer .Längswand des Metallprofils sind diese parallel zueinander und parallel zur Längsachse des Metallprofils verlaufenden Versteifungssicken vorzugsweise derart zueinander ausgebildet, daß sie im Schnitt quer zu ihrer Längsrichtung eine gleichmäßige Wellung der Längswand des Metallprofils ergeben. Diese Wellung kann sich entweder über die gesamte Breite der Längswand erstrecken oder kann alternativ auf einen Teilbereich einer solchen Längswand beschränkt bleiben, so daß die jeweilige Längswand also zusätzlich zu einem über die gesamte axiale Länge des Metallprofils sich erstreckenden gewellten Wandbereich plane, streifenförmige Wandbereiche aufweist.If more than one stiffening bead is formed in a longitudinal wall of the metal profile, these stiffening beads running parallel to one another and parallel to the longitudinal axis of the metal profile are preferably designed such that they have the same cross-section to their longitudinal direction result in moderate corrugation of the longitudinal wall of the metal profile. This corrugation can either extend over the entire width of the longitudinal wall or alternatively can remain limited to a partial region of such a longitudinal wall, so that the respective longitudinal wall has plane, strip-shaped wall regions in addition to a corrugated wall region extending over the entire axial length of the metal profile.

Eine Verbesserung der Biegesteifigkeit des Metallprofils kann bereits bei der Ausbildung nur relativ flacher Sicken erzielt werden. Der ungünstigste Fall ist dabei der, daß in einer Längswand des Metallprofils jeweils nur eine flache Sicke in der Mitte der Längswand, bezogen auf deren Breite, angeordnet ist. Eine Verbesserung der durch eine solche flache Sicke erzielbaren Biegesteifigkeit wird bereits dadurch erzielt, daß die flache Sicke aus der Mitte der Wandfläche zu einer Kante hin herausverlegt wird. Insgesamt trägt die flache Sicke jedoch nur wenig zur Verbesserung der Biegesteifigkeit des Metallprofils und praktisch nichts zur Verbesserung der Verwindungssteifigkeit des Metallprofils bei. Wesentlich bessere Ergebnisse werden mit relativ tiefen Sicken erzielt. Das Metallprofil weist daher nach einer Ausgestaltung der Erfindung vorzugsweise eine lichte Tiefe der Versteifungssicke bzw. der Versteifungssicken auf, die mindestens das Vierfache, vorzugsweise mindestens das Sechsfache der Materialstärke des Metallprofils beträgt. Unter "lichter Tiefe" wird dabei der Abstand von der an die Sicke angrenzenden äußeren Oberfläche der Wand des Metallprofils bis zum tiefsten Punkt der Sohle der Sicke verstanden.An improvement in the bending stiffness of the metal profile can already be achieved in the formation of only relatively flat beads. The worst case is that only one flat bead is arranged in the middle of the longitudinal wall, based on its width, in a longitudinal wall of the metal profile. An improvement in the bending stiffness that can be achieved with such a flat bead is achieved in that the flat bead is moved out of the center of the wall surface towards an edge. Overall, however, the flat corrugation does little to improve the bending stiffness of the metal profile and practically nothing to improve the torsional stiffness of the metal profile. Much better results are achieved with relatively deep beads. According to one embodiment of the invention, the metal profile therefore preferably has a clear depth of the stiffening bead or stiffening beads which is at least four times, preferably at least six times the material thickness of the metal profile. "Clear depth" is understood to mean the distance from the outer surface of the wall of the metal profile adjacent to the bead to the lowest point of the base of the bead.

Solchen tiefen Versteifungssicken weisen gegenüber den flachen Versteifungssicken wesentliche Vorteile auf. So bewirken die tiefen Sicken eine bessere Biegesteifigkeit und insbesondere eine Verwindungssteifigkeit des Metallprofils. Sie bewirken für das Metallprofil weiterhin eine gewisse Elastizität senkrecht zur Längsrichtung der Versteifungssicken, wodurch eine besonders gute Anbindung des Metallprofils an das Kunststoffhohlprofil erhalten wird. Es kann dadurch insbesondere mit dünneren Materialstärken als bei einem Metallprofil mit flacher Sicke gearbeitet werden.Such deep stiffening beads have significant advantages over the flat stiffening beads. The deep corrugations result in a better bending stiffness and in particular a torsional stiffness of the metal profile. They effect for the metal profile a certain elasticity perpendicular to the longitudinal direction of the stiffening beads, whereby a particularly good connection of the metal profile to the hollow plastic profile is obtained. As a result, it is possible in particular to work with thinner material thicknesses than with a metal profile with a flat bead.

Die tiefen Versteifungssicken sind vorzugsweise so ausgebildet, daß sie nach außen zu eine lichte öffnungsbreite, also einen lichten Abstand von einer äußeren Sickenkante zur gegenüberliegenden äußeren Sickenkante, aufweisen, der mindestens gleich der lichten Tiefe der Versteifungssicke ist. Vorzugsweise sind weiterhin in zumindest einer Längswand des Metallprofils mindestens zwei der tiefen Versteifungssicken in der Weise nebeneinanderliegend ausgebildet, daß die beiden nebeneinander verlaufenden tiefen Versteifungssicken eine durchgehende Wellung der Längswand ergeben.The deep stiffening beads are preferably designed such that they have a clear opening width to the outside, ie a clear distance from an outer bead edge to the opposite outer bead edge, which is at least equal to the clear depth of the stiffening bead. Furthermore, at least two of the deep stiffening beads are preferably formed side by side in at least one longitudinal wall of the metal profile in such a way that the two deep stiffening beads running side by side result in a continuous corrugation of the longitudinal wall.

Die mit solchen Metallprofilen verstärkten Kunststoffhohlprofile weisen ein im Querschnitt geschlossenes Innenprofil auf, das zumindest eine vollkommen plane und ebene unprofilierte Innenwandfläche aufweist, die an mindestens einer gesickten Wand des Metallprofils, vorzugsweise an der mit einer tiefen Doppelsicke versehenen gewellten Metallprofilwand anliegt. Mit anderen Worten, das Kunststoffhohlprofil, in das das mit den tiefen Sicken versehene Metallprofil eingeschoben oder eingeschlagen ist, greift zumindest in den Bereich, in dem die tiefen Sicken des Metallprofils ausgebildet sind, in keiner Weise in diese Sicken ein. Durch ein solches Fehlen eines formschlüssigen Eingriffs zwischen dem Metallprofil und dem Kunststoffhohlprofil wird überraschenderweise ein Verbundprofil, also ein verstärktes Kunststoffhohlprofil, erhalten, das hinsichtlich seiner Kenndaten sowohl für die Beigesteifigkeit als auch gleichzeitig für die Verwindungssteifigkeit optimale Ergebnisse zeigt. Diese Ergebnisse können dadurch weiter verbessert werden, daß das Kunststoffhohlprofil das Metallprofil unter mechanischer Vorspannung umschließt und umspannt. Diese mechanische Vorspannung des tiefgesickten Metallprofils in dem Kunststoffhohlprofil kann dadurch herbeigeführt werden, daß das Metallprofil im entspannten Zustand mit geringem Übermaß ausgebildet und unter geringer federelastischer Verformung in das Hohlprofil eingeschlagen wird und/oder daß ein kaltes Metallprofil in ein gleichmäßig erwärmtes Kunststoffhohlprofil eingeschoben und die erhaltene Einschubstruktur anschließend auf Raumtemperatur abgekühlt wird. Dadurch wird ein thermisches Aufschrumpfen des Kunststoffhohlprofils auf das Metallprofil erzielt. In jedem Fall wird auf diese Weise ein Verbundprofil erzielt, das durch allein formschlüssigen Eingriff zwischen einem verstärkenden Metallprofil und einem komplemantär innenprofilierten Kunststoffhohlprofil nicht erzielbar ist. Dieser Verbund kann durch spannende und fixierende, insbesondere selbstschneidende Metallschrauben verbessert werden, die von außen her durch das Kunststoffhohlprofil hindurch in zumindest eine Wand zumindest einer Versteifungssicke eingeschraubt sind. Die Achse der Schraube kann dabei sowohl in Richtung der Tiefe der Sicke verlaufen, so daß also die Schraube die Sohle der Sicke durchsetzt, als auch senkrecht zu dieser Richtung liegen, so daß also die Schraube eine oder beide Seitenwände der Sicke durchsetzt.The hollow plastic profiles reinforced with such metal profiles have an inner profile which is closed in cross-section and which has at least one completely flat and level non-profiled inner wall surface which bears against at least one corrugated wall of the metal profile, preferably against the corrugated metal profile wall provided with a deep double bead. In other words, the hollow plastic profile, into which the metal profile provided with the deep beads is inserted or knocked in, does not engage in any way in these beads, at least in the area in which the deep beads of the metal profile are formed. Such a lack of a form-fitting engagement between the metal profile and the hollow plastic profile surprisingly gives a composite profile, that is to say a reinforced hollow plastic profile, which, with regard to its characteristic data, shows optimum results both for the stiffness against rigidity and at the same time for the torsional rigidity. These results can further ver be improved that the plastic hollow profile encloses and encompasses the metal profile under mechanical prestress. This mechanical prestressing of the deeply corrugated metal profile in the hollow plastic profile can be brought about in that the metal profile is designed with a slight oversize in the relaxed state and is hammered into the hollow profile with little resilient deformation and / or that a cold metal profile is inserted into a uniformly heated hollow plastic profile and the result is obtained Insert structure is then cooled to room temperature. As a result, the plastic hollow profile is thermally shrunk onto the metal profile. In any case, a composite profile is achieved in this way, which cannot be achieved by positive engagement between a reinforcing metal profile and a complementarily hollow plastic profile. This bond can be improved by exciting and fixing, in particular self-tapping metal screws, which are screwed from the outside through the plastic hollow profile into at least one wall of at least one stiffening bead. The axis of the screw can run both in the direction of the depth of the bead, so that the screw passes through the sole of the bead, and also lie perpendicular to this direction, so that the screw passes through one or both side walls of the bead.

Aus solchen verstärkten Kunststoffhohlprofilen hergestellte Rahmen für den Hochbau, insbesondere Fensterrahmen und Türrahmen, zeichnen sich durch eine verbesserte Steifigkeit sowohl bei quer zur Rahmenfläche einwirkenden Kräften, beispielsweise Windkräften, als auch bei Kräften aus, die in der Ebene des Rahmens einwirken, beispielsweise also hinsichtlich der durch das Eigengewicht der Rahmen verursachten Kräfte bei einseitiger Aufhängung.Frames made from such reinforced plastic hollow profiles for building construction, in particular window frames and door frames, are characterized by improved rigidity both in the case of forces acting transversely to the frame surface, for example wind forces, and in the case of forces which act in the plane of the frame, for example with regard to forces caused by the weight of the frame with one-sided suspension.

Die Erfindung ist im folgenden an Hand von Ausführungsbeispielen in Verbindung mit der Zeichnung näher erläutert. Es zeigen

  • Fig. 1 im Querschnitt ein erstes Ausführungsbeispiel des Metallprofils; und
  • Fig. 2 ein verstärktes Kunststoffhohlprofil mit einem zweiten Ausführungsbeispiel des Metallprofils.
The invention is explained below with reference to exemplary embodiments in conjunction with the drawing. Show it
  • Figure 1 in cross section a first embodiment of the metal profile. and
  • Fig. 2 is a reinforced plastic hollow profile with a second embodiment of the metal profile.

In der Fig. 1 ist im Querschnitt ein Metallprofil 1 zur Verstärkung von Kunststoffhohlprofilen dargestellt. Das im Querschnitt offene Metallprofil hat im wesentlichen die Form eines C-Profils. Zwei der Längswände des Metallprofils 1, nämlich die beiden einander gegenüberliegenden Längswände 2 und 3, weisen jeweils eine Versteifungssicke 4 bzw. 5 auf. Bezogen auf die Breite bzw. Höhe der Längswände 2,3 sind die Versteifungssicken 4,5 nicht in der Mitte der Längswände 2,3, sondern im Bereich der Profilkanten 6,7 angeordnet, die die Längsflächen 2 bzw. 3 mit der diese beiden Längsflächen verbindenden Längsfläche 8 bilden. In der Längsfläche 8 sind aneinandergrenzend zwei tiefe Versteifungssicken 9 und 10 ausgebildet, deren Tiefe das Siebenfache der Materialstärke, das heißt der Wandstärke des Metallprofils, beträgt. Die tiefen Versteifungssicken 9 und 10 sind so zueinander angeordnet, daß sie eine gleichmäßige Wellung der Längsfläche 8 bilden. Die Innenschenkel 11 und 12 des Metallprofils 1 verlaufen nicht im rechten Winkel zu den Längswänden 2 und 3, sondern schließen jeweils mit diesen Längswänden einen Winkel von etwas größer als 90° ein. Beim Einschlagen eines solchen Metallprofils in ein rechtwinkliges Kunststoffhohlprofils werden diese Seitenschenkel geringfügig federelastisch verformt, so daß das Metallprofil unter Vorspannung in dem Kunststoffhohlprofil sitzt. Dabei ist zu beachten, daß die in Fig. 1 gezeigte Darstellung nicht maßstäblich, sondern der besseren Erkennbarkeit halber übertrieben worden ist.1 shows a cross section of a metal profile 1 for reinforcing hollow plastic profiles. The metal profile, which is open in cross section, essentially has the shape of a C profile. Two of the longitudinal walls of the metal profile 1, namely the two opposite longitudinal walls 2 and 3, each have a stiffening bead 4 or 5. Based on the width or height of the longitudinal walls 2, 3, the stiffening beads 4, 5 are not arranged in the middle of the longitudinal walls 2, 3, but in the region of the profile edges 6, 7, which the longitudinal surfaces 2 and 3 with the two longitudinal surfaces connecting longitudinal surface 8 form. Two deep stiffening beads 9 and 10 are formed in the longitudinal surface 8, the depth of which is seven times the material thickness, that is to say the wall thickness of the metal profile. The deep stiffening beads 9 and 10 are arranged in relation to one another in such a way that they form a uniform corrugation of the longitudinal surface 8. The inner legs 11 and 12 of the metal profile 1 do not run at right angles to the longitudinal walls 2 and 3, but each enclose an angle of somewhat greater than 90 ° with these longitudinal walls. When such a metal profile is hammered into a rectangular plastic hollow profile, these side legs are slightly resiliently deformed, so that the metal profile sits in the plastic hollow profile under prestress. It should be noted that the illustration shown in FIG. 1 has not been exaggerated to scale, but rather for the sake of better visibility.

Ein zweites Ausführungsbeispiel eines Metallprofils 1' ist in der Fig. 2 dargestellt, und zwar eingeschoben in ein Kunststoffhohlprofil 13. Das Kunststoffhohlprofil 13, beispielsweise ein Fensterrahmenprofil, ist nur im Ausschnitt angedeutet, da die Gesamtgestaltung eines solchen Kunststoffhohlprofils nicht Gegenstand der vorliegenden Anmeldung und dem Fachmann ohnehin geläufig ist. Das Kunststoffhohlprofil 13 weist einen Hohlraum 14 auf, der von vier rechtwinklig zueinanderstehenden vollkommen planen Innenwandflächen 17 umschlossen ist. Das Hohlprofil 13 ist thermisch auf das Metallprofil 1' aufgeschrumpft. Die seitlichen Schenkel oder Längswände 2' und 3' des Metallprofils 1' weisen keine Versteifungssicken auf. Die Innenschenkel 11' und 12' des Metallprofils 1' sind exakt rechtwinklig zu den Längswänden 2' und 3' angeordnet. Die Längswand 8' des Metallprofils 1' weist zwei tiefe Versteifungssicken 9,10 auf, von denen jede eine lichte Tiefe von ungefähr dem Achtfachen der Materialstärke und eine lichte öffnungsbreite von ungefähr dem 15fachen der Materialstärke aufweist. Die Sicken 9 und 10 öffnen sich zu der bzw. auf der vollkommen planen Innenwandfläche 15 des Hohlraumes 14 des Kunststoffhohlprofils 13. Auf dieser Innenwandfläche 15 sind also keinerlei Vorsprünge ausgebildet, die in die Sicken 9 oder 10 eingreifen. Der Verbund zwischen dem Metallprofil 1' und dem Kunststoffhohlprofil 13 ist durch eine Metallschrau- be 16 verstärkt.A second embodiment of a metal profile 1 'is shown in FIG. 2, namely inserted into a hollow plastic profile 13. The hollow plastic profile 13, for example a window frame profile, is only indicated in the cutout, since the overall design of such a hollow plastic profile is not the subject of the present application and Expert is familiar anyway. The hollow plastic profile 13 has a cavity 14 which is enclosed by four perfectly flat inner wall surfaces 17 which are at right angles to one another. The hollow profile 13 is thermally shrunk onto the metal profile 1 '. The side legs or longitudinal walls 2 'and 3' of the metal profile 1 'have no stiffening beads. The inner legs 11 'and 12' of the metal profile 1 'are arranged exactly at right angles to the longitudinal walls 2' and 3 '. The longitudinal wall 8 'of the metal profile 1' has two deep stiffening beads 9, 10, each of which has a clear depth of approximately eight times the material thickness and a clear opening width of approximately 15 times the material thickness. The beads 9 and 10 open to or on the completely flat inner wall surface 15 of the cavity 14 of the plastic hollow profile 13. No projections are formed on this inner wall surface 15 which engage in the beads 9 or 10. The bond between the metal profile 1 'and the plastic hollow profile 13 is defined by a Metallschrau - be 16 amplifies.

Claims (10)

1. Metallprofil zur Verstärkung von Kunststoffhohlprofilen, gekennzeichnet durch
mindestens eine in mindestens einer Längswand (2;3;8) des Metallprofils (1) ausgebildete parallel zur Längsachse des Metallprofils verlaufende und zum Inneren des Metallprofils vorspringende, nach außen offene und nicht flachgedrückte Versteifungssicke (4;5;9;10), die sich zumindest im wesentlichen über die gesamte Länge des Metallprofils erstreckt.1. Metal profile for reinforcing hollow plastic profiles, characterized by
at least one stiffening bead (4; 5; 9; 10) which is formed in at least one longitudinal wall (2; 3; 8) of the metal profile (1) and runs parallel to the longitudinal axis of the metal profile and projects towards the inside of the metal profile extends at least substantially over the entire length of the metal profile. 2. Metallprofil nach Anspruch 1,
dadurch gekennzeichnet ,
daß das Metallprofil (1) ein im Querschnitt offenes Profil ist.2. metal profile according to claim 1,
characterized ,
that the metal profile (1) is an open cross section. 3. Metallprofil nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet ,
daß die Versteifungssicke (9;10) von außen gemessen eine lichte Tiefe von mindestens der vierfachen, insbesondere mindestens der sechsfachen Materialstärke aufweist.3. Metal profile according to one of claims 1 or 2, characterized in
that the stiffening bead (9; 10) measured from the outside has a clear depth of at least four times, in particular at least six times the material thickness. 4. Metallprofil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet ,
daß die lichte Breite der Versteifungssicke (9;10) mindestens gleich der lichten Tiefe der Versteifungssicke ist.4. Metal profile according to one of claims 1 to 3, characterized in
that the clear width of the stiffening bead (9; 10) is at least equal to the clear depth of the stiffening bead. 5. Metallprofil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet ,
daß in mindestens einer Längswand (8) des Metallprofils (1) mehr als eine Versteifungssicke (9,10) derart ausgebildet sind, daß die Längswand (8) zumindest in einem Teilbereich zumindest im wesentlichen gleichmäßig und stetig gewellt ist.5. Metal profile according to one of claims 1 to 4, characterized in
that in at least one longitudinal wall (8) of the metal profile (1) more than one stiffening bead (9, 10) are formed in such a way that the longitudinal wall (8) is corrugated, at least in a partial area, at least substantially uniformly and continuously. 6. Durch ein eingeschobenes Metallprofil nach einem der Ansprüche 1 bis 5 verstärktes, im Querschnitt geschlossenes Kunststoffhohlprofil,
dadurch gekennzeichnet , daß das Kunststoffhohlprofil (13) innen mit mindestens einer ebenen, unprofilierten Fläche (15) an mindestens einer ge-sickten Wand (8) des Metallprofils (1') anliegt.6. Reinforced by a inserted metal profile according to one of claims 1 to 5, closed in cross-section hollow plastic profile,
characterized in that the hollow plastic profile (13) rests on the inside with at least one flat, non-profiled surface (15) on at least one seepage wall (8) of the metal profile (1 '). 7. Verstärktes Kunststoffhohlprofil nach Anspruch 6, dadurch gekennzeichnet ,
daß das Kunststoffhohlprofil (13) das Metallprofil (1') unter mechanischer Vorspannung umspannt.7. Reinforced hollow plastic profile according to claim 6, characterized in
that the plastic hollow profile (13) spans the metal profile (1 ') under mechanical prestress. 8. Verstärktes Kunststoffhohlprofil nach Anspruch 7, dadurch gekennzeichnet ,
daß das Kunststoffhohlprofil (13) auf das Metallprofil (1;1') thermisch aufgeschrumpft ist und/oder das Metallprofil unter federelastischer Verformung in das Kunststoffhohlprofil eingeschlagen ist.8. Reinforced hollow plastic profile according to claim 7, characterized in
that the plastic hollow profile (13) is thermally shrunk onto the metal profile (1; 1 ') and / or the metal profile is driven into the plastic hollow profile with resilient deformation. 9. Verstärktes Kunststoffhohlprofil nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet ,
daß mindestens eine Wand mindestens einer Versteifungssicke (9) von mindestens einer Schraube (16) durchsetzt ist; die von außen her durch das Kunststoffhohlprofil (13) hindurch eingedreht ist.9. Reinforced hollow plastic profile according to one of claims 6 to 8,
characterized ,
that at least one wall of at least one stiffening bead (9) is penetrated by at least one screw (16); which is screwed in from the outside through the plastic hollow profile (13). 10. Rahmen, insbesondere Fenster- oder Türrahmen, gekennzeichnet durch
ein verstärktes Kunststoffhohlprofil (1',13) nach einem der Ansprüche 6 bis 9.10. Frame, in particular window or door frame, characterized by
a reinforced plastic hollow profile (1 ', 13) according to one of claims 6 to 9.
EP19810108517 1981-10-19 1981-10-19 Metal section for reinforcing plastics hollow sections, plastics hollow sections reinforced by such a metal section and a frame which is made of a plastics hollow section thus reinforced Expired EP0077412B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8181108517T DE3172248D1 (en) 1981-10-19 1981-10-19 Metal section for reinforcing plastics hollow sections, plastics hollow sections reinforced by such a metal section and a frame which is made of a plastics hollow section thus reinforced
EP19810108517 EP0077412B1 (en) 1981-10-19 1981-10-19 Metal section for reinforcing plastics hollow sections, plastics hollow sections reinforced by such a metal section and a frame which is made of a plastics hollow section thus reinforced

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19810108517 EP0077412B1 (en) 1981-10-19 1981-10-19 Metal section for reinforcing plastics hollow sections, plastics hollow sections reinforced by such a metal section and a frame which is made of a plastics hollow section thus reinforced

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Publication Number Publication Date
EP0077412A1 true EP0077412A1 (en) 1983-04-27
EP0077412B1 EP0077412B1 (en) 1985-09-11

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156108A3 (en) * 1984-02-22 1986-06-04 Firma Ingenieur Klaus Blaurock Bau- Und Raumtechnik Window or door frame profile
DE4322829C1 (en) * 1993-07-08 1995-02-09 Pax Gmbh Hollow plastic profile, especially for window or door frames
GB2291914A (en) * 1994-08-04 1996-02-07 Equator Wheels & Sections Ltd Joining members for window frames
EP0742336A1 (en) * 1995-05-11 1996-11-13 EWS (Manufacturing) Ltd Windows
GB2302106A (en) * 1995-06-10 1997-01-08 Metsec Plc Enhancing rigidity of metal strip material
US5974758A (en) * 1995-11-14 1999-11-02 Thyssen Polymer Gmbh Reinforced chamber with a hollow cross section
EP1693546A1 (en) * 2005-01-24 2006-08-23 EgoKiefer AG Window or door with adhered glazing
EP1857627A1 (en) * 2006-05-15 2007-11-21 EgoKiefer AG Profile frame for a window or door element with adhered glazing
EP2642059B1 (en) 2012-03-20 2016-05-18 profine GmbH Method for reinforcing a plastic hollow chamber profile
PL126649U1 (en) * 2017-10-02 2019-04-08 Qds 24 Spółka Z Ograniczoną Odpowiedzialnością Strengthening profile for windows or doors
DE102019131361A1 (en) * 2019-11-20 2021-05-20 Rehau Ag + Co Reinforcement element for window or door cavity profiles as well as method for reinforcing a window or door cavity profile
DE202021102473U1 (en) 2021-05-07 2022-08-11 REHAU Industries SE & Co. KG Reinforcement element for window or door hollow chamber profiles and this comprehensive frame for facade, door or window elements
EP4421279A1 (en) 2023-02-23 2024-08-28 profine GmbH Reinforcing profile for doors and windows made from recyclate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8030522U1 (en) * 1980-11-14 1981-03-19 Forming AG, Möhlin WINDOW FRAME
DE3004212A1 (en) * 1980-02-06 1981-08-13 Fulguritwerke Seelze und Eichriede in Luthe bei Hannover Adolf Oesterheld GmbH & Co KG, 3050 Wunstorf Window frame section - with polyurethane foam encapsulated steel strip rolled to an inverted P-section and grooved

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004212A1 (en) * 1980-02-06 1981-08-13 Fulguritwerke Seelze und Eichriede in Luthe bei Hannover Adolf Oesterheld GmbH & Co KG, 3050 Wunstorf Window frame section - with polyurethane foam encapsulated steel strip rolled to an inverted P-section and grooved
DE8030522U1 (en) * 1980-11-14 1981-03-19 Forming AG, Möhlin WINDOW FRAME

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156108A3 (en) * 1984-02-22 1986-06-04 Firma Ingenieur Klaus Blaurock Bau- Und Raumtechnik Window or door frame profile
DE4322829C1 (en) * 1993-07-08 1995-02-09 Pax Gmbh Hollow plastic profile, especially for window or door frames
GB2291914A (en) * 1994-08-04 1996-02-07 Equator Wheels & Sections Ltd Joining members for window frames
GB2291914B (en) * 1994-08-04 1997-06-11 Equator Wheels & Sections Ltd Joining members for window frames
EP0742336A1 (en) * 1995-05-11 1996-11-13 EWS (Manufacturing) Ltd Windows
GB2301611A (en) * 1995-05-11 1996-12-11 Equator Wheels & Sections Ltd Window frame reinforcement
GB2302106A (en) * 1995-06-10 1997-01-08 Metsec Plc Enhancing rigidity of metal strip material
GB2302106B (en) * 1995-06-10 1999-08-25 Metsec Plc Metal strip
US5974758A (en) * 1995-11-14 1999-11-02 Thyssen Polymer Gmbh Reinforced chamber with a hollow cross section
EP1693546A1 (en) * 2005-01-24 2006-08-23 EgoKiefer AG Window or door with adhered glazing
EP1857627A1 (en) * 2006-05-15 2007-11-21 EgoKiefer AG Profile frame for a window or door element with adhered glazing
EP2642059B1 (en) 2012-03-20 2016-05-18 profine GmbH Method for reinforcing a plastic hollow chamber profile
PL126649U1 (en) * 2017-10-02 2019-04-08 Qds 24 Spółka Z Ograniczoną Odpowiedzialnością Strengthening profile for windows or doors
DE102019131361A1 (en) * 2019-11-20 2021-05-20 Rehau Ag + Co Reinforcement element for window or door cavity profiles as well as method for reinforcing a window or door cavity profile
WO2021099380A1 (en) * 2019-11-20 2021-05-27 Rehau Ag + Co Reinforcing element for window or door hollow chamber profiles and method for reinforcing a window or door hollow chamber profile
DE202021102473U1 (en) 2021-05-07 2022-08-11 REHAU Industries SE & Co. KG Reinforcement element for window or door hollow chamber profiles and this comprehensive frame for facade, door or window elements
EP4421279A1 (en) 2023-02-23 2024-08-28 profine GmbH Reinforcing profile for doors and windows made from recyclate
DE102023104400A1 (en) * 2023-02-23 2024-08-29 Profine Gmbh Reinforcement profile for doors and windows made of recycled material

Also Published As

Publication number Publication date
EP0077412B1 (en) 1985-09-11
DE3172248D1 (en) 1985-10-17

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