EP0149991B1 - Wooden window frame provided with an exterior light metal cladding - Google Patents

Wooden window frame provided with an exterior light metal cladding Download PDF

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Publication number
EP0149991B1
EP0149991B1 EP19840890219 EP84890219A EP0149991B1 EP 0149991 B1 EP0149991 B1 EP 0149991B1 EP 19840890219 EP19840890219 EP 19840890219 EP 84890219 A EP84890219 A EP 84890219A EP 0149991 B1 EP0149991 B1 EP 0149991B1
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Prior art keywords
light metal
window
window frame
wooden parts
metal sections
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EP19840890219
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German (de)
French (fr)
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EP0149991A1 (en
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Franz Silber
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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
    • E06B3/30—Coverings, e.g. protecting against weather, for decorative purposes
    • E06B3/301—Coverings, e.g. protecting against weather, for decorative purposes consisting of prefabricated profiled members or glass
    • E06B3/302—Covering wooden frames with metal or plastic profiled members

Definitions

  • the invention relates to a wooden window provided with an outside cladding made of light metal, in particular aluminum, in which the light metal profiles forming the cladding are kept at a distance from the wooden parts of the window sash or window frame by spacers which are connected to the wooden parts of the window sash or window frame connected by connecting parts, in particular screwed.
  • the invention has for its object to avoid these disadvantages and to improve a window of the type described in such a way that it can be easily manufactured with little effort and that the light metal profiles are firmly and permanently connected to the wooden parts without impeding their breathing, taking into account the different thermal expansion behavior of the light metal in relation to the wood.
  • Another goal is to achieve a rigid corner connection of the light metal profile frame.
  • the invention solves this problem in that the spacers are rigidly glued to the light metal profiles and are connected by means of the connecting parts to the wooden parts of the window sash or window frame with play at least in the longitudinal direction of the light metal profiles, and in that in the corners of the window sash or window frame arranged spacers are glued to the two parts of the light metal profiles butted in the corner area such that the spacers form a rigid corner connection of the light metal profiles with their gluing.
  • the spacers hiebei secure a cavity between the wooden parts and the light metal profiles placed on them in a known manner, so that proper ventilation of the wooden parts remains guaranteed even on the side facing the light metal profiles, so that the wood cannot suffocate.
  • the invention is Construction according to the invention is simple to manufacture and assemble and therefore very cost-effective, because the assembly of the light-metal profiles which have been cut to size at the window corners, in particular mitred, is simplified and made cheaper by the spacers which are glued to one another. At the same time, the spacers at the corners of the window provide a seal for the light metal profiles in the corner area against the ingress of dust and moisture.
  • the spacers are formed from flat light metal plates, in particular from aluminum.
  • Flat light metal plates can be made from waste products, e.g. B. when cutting the light metal profiles.
  • the connecting parts are preferably formed by screws which penetrate elongated holes in the spacers located in the longitudinal direction of the profiles.
  • the smallest distance between two opposite hole edges is larger than the shank diameter of the screws, but smaller than the head diameter of the screws.
  • inserts in particular foam strips, are arranged between the spacers on both sides, the thickness of which is equal to the thickness of the spacers.
  • These double-sided adhesive inserts hold the light metal profiles to the wooden parts during assembly as soon as they have been pressed on. The window can therefore immediately go to further processing without having to wait for the adhesive (generally metal adhesive) used to glue the spacers to the light metal profiles.
  • holes are provided in the light metal profiles, in particular on their undersides, according to a development of the invention.
  • Fig. 1 shows a vertical section through the window and Fig. 2 shows a corner of the window frame in an axonometric view and on a larger scale.
  • the window frame 2 In the building opening 1, the window frame 2 is inserted, which interacts with at least one window sash 3.
  • double glazing 4 is used in a conventional manner.
  • On the wooden parts 5 and 6 of the window frame 2 and the window sash 3 are made of aluminum light metal profiles 7 and 8, z. B. folded aluminum sheets or extruded profiles. These light metal profiles, the profile of which broadly follows the profile of the outside of the associated wooden part 5 or 6, are not placed directly on the wooden parts 5, 6, but with the interposition of spacers 9, in particular flat aluminum plates attached to the wooden parts 5, 6. 6 of the window frame 2 or the window sash 3 are fastened at intervals from one another by means of screws 10.
  • spacers 9 are provided at the corners of the window frame 2 or the window sash 3, in particular in a triangular shape, furthermore in the form of rectangular plates at intervals of approximately 50 cm.
  • the light metal profiles 7 and 8 are at a distance from the wooden parts 5, 6, whereby a cavity 11 and 12 is formed in each case.
  • self-adhesive inserts 13 are glued to the wooden parts 5, 6 between the spacers 9, in particular self-adhesive foam sheets which have the same thickness as the plate-shaped spacers 9 5, 6 layers 14 made of an elastic adhesive, in particular a silicone adhesive, and a thin layer 15 made of a metal adhesive on the spacers 9, the heads of the screws 10 being covered beforehand so that this metal adhesive does not connect the spacers 9 to the screws 10 can.
  • the loose light metal profiles 7 and 8, which are cut at their ends with miter 30, are pressed against the wooden parts 5, 6 of the window frame 2 and the window sash 3.
  • the two-sided self-adhesive inserts 13 immediately hold, so that the wooden parts 5, 6 are sufficiently firmly connected to the light metal profiles 7, 8 to enable immediate further work at the window.
  • the light metal profiles can therefore be attached individually or element by element to the wooden parts and it is not necessary to assemble the light metal profiles into a fixed frame before connecting them to the wooden parts.
  • the layer 15 of the metal adhesive hardens and thus represents a compact connection between the light metal frame and the wooden frame.
  • the light metal frame can work independently of the wooden frame since there is play between the spacers 9 and the screws 10, that the holes 16 of the spacers 9, through which the screws 10 are inserted, at least in the The longitudinal direction of the profiles 7, 8 are larger than the shank diameter of the screws 10, but smaller in the transverse direction of the profile longitudinal direction than the head diameter of these screws.
  • the longitudinal direction of the profiles 7, 8 are larger than the shank diameter of the screws 10, but smaller in the transverse direction of the profile longitudinal direction than the head diameter of these screws.
  • the spacers 9 in the corners of the window frame 2 or the window sash 3 also represent a rigid corner connection of the light metal profile frame after the metal adhesive layer 15 has hardened.
  • the cavities 11 and 12 ensure rear ventilation of the wood lying behind the cladding formed by the light metal profiles.
  • holes 17 and 18 are provided in the light metal profiles 7 and 8 above or below.
  • the holes 17 are expediently at the top, for the lower sections, however, the holes 18 are arranged at the bottom in order to protect these holes 17 and 18 as far as possible against the entry of driving rain.
  • the profile of the window sash 3 expediently has a water nose 19, from which dripping water always reaches the cladding of the window frame 2 formed by the light metal profile 7.
  • the profile of the window sash 3 is covered on the outside by a rubber seal 22 inserted into a groove 21 of the wooden part 6, so that no water can penetrate.
  • a second rubber seal 23 is inserted in a groove 24 of the wooden part 6 further inside. The two rubber seals 22, 23 ensure the tightness of the window.
  • the external appearance or the visual impression of the window corresponds more to a wooden window, because the window sash 3 with respect to the window frame 2 back, i. H. is offset towards the inside and does not lie flush as with conventional wood-aluminum windows.
  • the window shown is much cheaper to produce than conventional wood-aluminum windows.
  • Any water that has passed behind the light metal profile 7 of the window frame 2 is collected by a strip 25 and passed through a channel 26 into the cavity 11, from where it can flow down through the holes 18.

Description

Die Erfindung bezieht sich auf ein mit einer außenseitigen Verkleidung aus Leichtmetall, insbesondere Aluminium, versehenes Holzfenster, bei welchem die die Verkleidung bildenden Leichtmetallprofile von den Holzteilen des Fensterflügels bzw. Fensterstockes durch Distanzstücke in Abstand gehalten sind, welche mit den Holzteilen des Fensterflügels bzw. Fensterstockes mittels Verbindungsteilen verbunden, insbesondere verschraubt sind.The invention relates to a wooden window provided with an outside cladding made of light metal, in particular aluminum, in which the light metal profiles forming the cladding are kept at a distance from the wooden parts of the window sash or window frame by spacers which are connected to the wooden parts of the window sash or window frame connected by connecting parts, in particular screwed.

Bekanntlich bedürfen Holzfenster zumindest außenseitig in bestimmten Zeitintervallen eines Anstriches, um den Witterungseinflüssen standhalten zu können. Aus Leichtmetall, insbesondere Aluminium, bestehende Fenster haben diesen Nachteil nicht, bilden aber mit den Metallteilen eine Kältebrücke von außen nach innen, die nur durch zusätzliche, zumeist kostenintensive Maßnahmen verhindert werden kann. Außerdem wird häufig aus ästhetischen Gründen gewünscht, im Rauminneren das warme Holz zu haben. Es wurden daher bereits Fenster vorgeschlagen, bei welchen innenseitig gelegene Holzteile außenseitig mit einer Verkleidung aus Leichtmetall versehen sind. Es hat sich jedoch herausgestellt, daß dies nicht problemlos möglich ist. Eine bekannte Konstruktion sieht vor, die Leichtmetallprofile auf die Holzteile aufschnappen zu lassen. Nachteilig hieran ist einerseits, daß die Leichtmetallprofile unmittelbar an den Holzteilen anliegen, so daß das Holz nicht atmen kann, anderseits, daß die Leichtmetallprofile ihren Halt verlieren, wenn das Holz im Laufe der Zeit schwindet. Bei einer anderen bekannten Konstruktion sind eckverbundene Aluminiumrahmen auf die Holzteile mittels Kunststoffverbindern aufgeschraubt. Hiebei ist nachteilig, daß die Holzteile eigens für dieses System hergestellt werden müssen und daß die Herstellung der Aluminiumprofile mit Rahmenverbindungen sowohl von der Herstellungsseite als auch von der Montageseite gesehen zusätzliche Kosten verursacht. Weiters besteht auch hier der Nachteil, daß die den Aluminiumprofilen zugewendete Seiten der Holzteile nicht genügend belüftet sind. Bei anderen bekannten Konstruktionen besteht wiederum der Nachteil, daß die unterschiedlichen Wärmedehnungen des Leichtmetalles und des Holzes Spannungen im Rahmen bzw. im Flügel des Fensters führen, was zu Undichtheiten und Funktionsstörungen führen kann. Bei auf die Holzteile aufgeschraubten metallischen Befestigungsbügeln, auf welche die Leichtmetallteile aufschnappen gelassen werden, führen diese Wärmedehnungen zu Kratzgeräuschen der aufeinander reibenden Metallteile. Dies gilt auch für eine Konstruktion nach der BE-A 681 967, bei welcher an den Holzteilen angeschraubte elastische Metallspangen die Verkleidungsprofile an die Holzteile andrücken. Zudem liegen bei der zuletzt genannten Konstruktion die Verkleidungsprofile an den Holzteilen an, so daß letztere mangelhaft belüftet sind.As is known, wooden windows require painting at least on the outside at certain time intervals in order to be able to withstand the weather. Windows made of light metal, especially aluminum, do not have this disadvantage, but form a cold bridge from the outside in with the metal parts, which can only be prevented by additional, mostly cost-intensive measures. In addition, for aesthetic reasons, it is often desired to have the warm wood inside. Windows have therefore already been proposed in which wooden parts located on the inside are provided on the outside with a cladding made of light metal. However, it has been found that this is not easily possible. A known construction provides for the light metal profiles to snap onto the wooden parts. The disadvantage of this is, on the one hand, that the light metal profiles lie directly on the wooden parts so that the wood cannot breathe, and, on the other hand, that the light metal profiles lose their hold if the wood shrinks over time. In another known construction, corner-connected aluminum frames are screwed onto the wooden parts by means of plastic connectors. Hiebei is disadvantageous that the wooden parts have to be produced specifically for this system and that the production of the aluminum profiles with frame connections causes additional costs both from the production side and from the assembly side. There is also the disadvantage that the sides of the wooden parts facing the aluminum profiles are not sufficiently ventilated. In other known constructions there is again the disadvantage that the different thermal expansions of the light metal and the wood lead to stresses in the frame or in the sash of the window, which can lead to leaks and malfunctions. When the metal mounting brackets are screwed onto the wooden parts and the light metal parts are snapped onto them, these thermal expansions lead to scratching noises from the metal parts rubbing against each other. This also applies to a construction according to BE-A 681 967, in which elastic metal clips screwed onto the wooden parts press the cladding profiles onto the wooden parts. In addition, with the latter construction, the cladding profiles rest on the wooden parts, so that the latter are poorly ventilated.

Es ist weiters bekannt (BE-A 703 014), die Leichtmetallprofile an der Frontseite der Holzteile durch Distanzstücke von diesen in Abstand zu halten und an den Seitenflächen der Holzteile anzuschrauben. An den Ecken des Fensterflügels sind jeweils zwei Leichtmetallprofile einander überlappend angeordnet. Ein elastischer Klebstoff dient zur Verklebung zwischen den Leicht- metallprofilen und den Distanzstücken. Die Überlappung der Leichtmetallteile an den Flügelecken ist nachteilig im Hinblick auf das Eindringen von Staub und Wasser, was durch die Elastizität der Klebeverbindung noch gesteigert wird.It is also known (BE-A 703 014) to keep the light metal profiles at the front of the wooden parts at a distance from them by means of spacers and to screw them onto the side surfaces of the wooden parts. At the corners of the window sash two light metal profiles are arranged to overlap each other. An elastic adhesive is used to glue the light metal profiles and the spacers. The overlap of the light metal parts on the wing corners is disadvantageous with regard to the penetration of dust and water, which is further increased by the elasticity of the adhesive connection.

Die Erfindung setzt sich zur Aufgabe, diese Nachteile zu vermeiden und ein Fenster der eingangs geschilderten Art so zu verbessern, daß es mit geringem Aufwand leicht hergestellt werden kann und daß die Leichtmetallprofile fest und dauerhaft mit den Holzteilen verbunden sind, ohne deren Atmung zu behindern, wobei auch den unterschiedlichen Wärmedehnungsverhalten des Leichtmetalles in Bezug auf das Holz Rechnung getragen ist. Weiters ist angestrebt, eine starre Eckverbindung des Leichtmetallprofilrahmens zu erzielen. Die Erfindung löst diese Aufgabe dadurch, daß die Distanzstücke mit den Leicht- metallprofilen starr verklebt und mittels der Verbindungsteile mit den Holzteilen des Fensterflügels bzw. Fensterstockes mit Spiel zumindest in Längsrichtung der Leichtmetallprofile verbunden sind, und daß in den Ecken des Fensterflügels bzw. des Fensterstockes angeordnete Distanzstücke mit den beiden im Eckbereich gestossenen Teilen der Leichtmetallprofile derart verklebt sind, daß die Distanzstücke mit ihrer Verklebung eine starre Eckverbindung der Leichtmetallprofile bilden. Die Distanzstücke sichern hiebei in bekannter Weise einem Hohlraum zwischen den Holzteilen und den auf sie aufgesetzten Leichtmetallprofilen, wodurch eine einwandfreie Belüftung der Holzteile auch an der den Leichtmetallprofilen zugewendeten Seite gewährleistet bleibt, so daß das Holz nicht ersticken kann. Trotz einer dauerhaften Verbindung zwischen den Leichtmetallprofilen und den Holzteilen, welche ein Lockerwerden ausschließt, ist dem unterschiedlichen Dehnungsverhalten der Leichtmetallprofile und der Holzteile durch das Spiel Rechnung getragen, welches für die Befestigung der Distanzstücke zumindest in Längsrichtung der Profile besteht. Selbst wenn sich nämlich Verschiebungen der Leichtmetallprofile in Bezug auf die Holzteile durch die unterschiedlichen Wärmedehnungen ergeben, so können diese Verschiebungen dadurch stattfinden, daß die mit den Leichtmetallprofilen starr verklebten Distanzstücke sich um das nötige Maß entlang der Holzteile infolge des erwähnten Spieles der Verbindungsteile verschieben können, ohne daß die Verbindung locker wird. Dies gilt auch dann, wenn die Holzteile im Laufe der Zeit ihre Maßgenauigkeit durch Schwinden verlieren. Trotz dieser Vorteile ist die erfindungsgemäße Konstruktion einfach in der Herstellung und in der Montage und daher sehr kostengünstig, denn die Montage der an den Fensterecken entsprechend zugeschnittenen, insbesondere auf Gehrung geschnittenen Leichtmetallprofile wird durch die sie untereinander verklebenden Distanzstücke vereinfacht und verbilligt. Zugleich ergeben die Distanzstücke an den Ecken des Fensters eine Abdichtung der im Eckbereich gestossenen Leichtmetallprofile gegen Eindringen von Staub und Feuchtigkeit.The invention has for its object to avoid these disadvantages and to improve a window of the type described in such a way that it can be easily manufactured with little effort and that the light metal profiles are firmly and permanently connected to the wooden parts without impeding their breathing, taking into account the different thermal expansion behavior of the light metal in relation to the wood. Another goal is to achieve a rigid corner connection of the light metal profile frame. The invention solves this problem in that the spacers are rigidly glued to the light metal profiles and are connected by means of the connecting parts to the wooden parts of the window sash or window frame with play at least in the longitudinal direction of the light metal profiles, and in that in the corners of the window sash or window frame arranged spacers are glued to the two parts of the light metal profiles butted in the corner area such that the spacers form a rigid corner connection of the light metal profiles with their gluing. The spacers hiebei secure a cavity between the wooden parts and the light metal profiles placed on them in a known manner, so that proper ventilation of the wooden parts remains guaranteed even on the side facing the light metal profiles, so that the wood cannot suffocate. Despite a permanent connection between the light metal profiles and the wooden parts, which prevents loosening, the different expansion behavior of the light metal profiles and the wooden parts is taken into account by the play, which exists for fastening the spacers at least in the longitudinal direction of the profiles. Even if there are shifts in the light metal profiles in relation to the wooden parts due to the different thermal expansions, these shifts can take place in that the spacers rigidly bonded to the light metal profiles can shift by the necessary amount along the wooden parts as a result of the aforementioned play of the connecting parts, without the connection becoming loose. This also applies if the wooden parts lose their dimensional accuracy due to shrinkage. Despite these advantages, the invention is Construction according to the invention is simple to manufacture and assemble and therefore very cost-effective, because the assembly of the light-metal profiles which have been cut to size at the window corners, in particular mitred, is simplified and made cheaper by the spacers which are glued to one another. At the same time, the spacers at the corners of the window provide a seal for the light metal profiles in the corner area against the ingress of dust and moisture.

Gemäß einer bevorzugten Ausführungsform der Erfindung sind die Distanzstücke von flachen Leichtmetallplatten, insbesondere aus Aluminium, gebildet. Flache Leichtmetallplatten können aus Abfallprodukten, z. B. beim Zuschneiden der Leichtmetallprofile, gewonnen werden.According to a preferred embodiment of the invention, the spacers are formed from flat light metal plates, in particular from aluminum. Flat light metal plates can be made from waste products, e.g. B. when cutting the light metal profiles.

Vorzugsweise sind erfindundungsgemäß die Verbindungsteile von Schrauben gebildet, die in Längsrichtung der Profile liegende Langlöcher der Distanzstücke durchsetzen. Hiebei ist der kleinste Abstand zweier gegenüberliegender Lochränder größer als der Schaftdurchmesser der Schrauben, jedoch kleiner als der Kopfdurchmesser der Schrauben. Dadurch wird das erwähnte Spiel, welches die Relatiwerschiebung der Leichtmetallprofile in Bezug auf die Holzteile zuläßt, mit geringem Aufwand und herkömmlichen Bauteilen erzielt. Um zu vermeiden, daß die Verklebung der Distanzstücke mit den Leichtmetallprofilen sich in einer Verklebung der Schrauben mit den Distanzstücken auswirkt und damit das erwähnte Spiel zunichte macht, sind hiebei die Schraubenköpfe gegenüber dem zur Verklebung der Distanzstücke mit den Leichtmetallprofilen verwendeten Klebstoff abgedeckt.According to the invention, the connecting parts are preferably formed by screws which penetrate elongated holes in the spacers located in the longitudinal direction of the profiles. The smallest distance between two opposite hole edges is larger than the shank diameter of the screws, but smaller than the head diameter of the screws. As a result, the aforementioned game, which allows the relative displacement of the light metal profiles in relation to the wooden parts, is achieved with little effort and conventional components. In order to avoid that the bonding of the spacers with the light metal profiles has an effect in an adhesive bonding of the screws with the spacers and thus nullifies the above-mentioned game, the screw heads are covered with respect to the adhesive used for bonding the spacers with the light metal profiles.

Bei der Montage ist es von Vorteil, wenn zwischen den Distanzstücken beidseitig klebende Einlagen, insbesondere Schaumstoffbänder, angeordnet sind, deren Dicke gleich ist der Dicke der Distanzstücke. Diese beidseitig klebenden Einlagen halten bei der Montage die Leichtmetallprofile an den Holzteilen fest, sobald einmal eine Andrückung erfolgt ist. Das Fenster kann daher danach sofort zur Weiterbearbeitung gelangen, ohne daß auf die Aushärtung des zur Verklebung der Distanzstücke mit den Leichtmetallprofilen verwendeten Klebstoffes (im allgemeinen Metallkleber) gewartet werden muß.During assembly, it is advantageous if inserts, in particular foam strips, are arranged between the spacers on both sides, the thickness of which is equal to the thickness of the spacers. These double-sided adhesive inserts hold the light metal profiles to the wooden parts during assembly as soon as they have been pressed on. The window can therefore immediately go to further processing without having to wait for the adhesive (generally metal adhesive) used to glue the spacers to the light metal profiles.

Um eine Abdichtung gegen Feuchtigkeit und Staub an den Längsrändern der Leichtmetallprofile zu erzielen, sind diese Längsränder mit den Holzteilen mittels eines elastischen Klebers, insbesondere eines Silikonklebers, verklebt. Damit wird die erwähnte unterschiedliche Wärmedehnung nicht behindert.In order to achieve a seal against moisture and dust on the longitudinal edges of the light metal profiles, these longitudinal edges are glued to the wooden parts by means of an elastic adhesive, in particular a silicone adhesive. This does not hinder the different thermal expansion mentioned.

Zur Verbesserung der Belüftung der Hohlraumes, der vom Abstand zwischen den Leichtmetallprofilen und den Holzteilen gebildet ist, sind gemäß einer Weiterbildung der Erfindung Löcher in den Leichtmetallprofilen, insbesondere an deren Unterseiten, vorgesehen.To improve the ventilation of the cavity, which is formed by the distance between the light metal profiles and the wooden parts, holes are provided in the light metal profiles, in particular on their undersides, according to a development of the invention.

In der Zeichnung ist die Erfindung an Hand eines Ausführungsbeispieles schematisch dargestellt. Fig. 1 zeigt einen Vertikalschnitt durch das Fenster und Fig. 2 zeigt eine Ecke des Fensterstockes in axonometrischer Ansicht und in größerem Maßstab.In the drawing, the invention is shown schematically using an exemplary embodiment. Fig. 1 shows a vertical section through the window and Fig. 2 shows a corner of the window frame in an axonometric view and on a larger scale.

In die Gebäudeöffnung 1 ist der Fensterstock 2 eingesetzt, der mit zumindest einem Fensterflügel 3 zusammenwirkt. In den Fensterflügel 3 ist in herkömmlicher Weise eine doppelscheibige Isolierverglasung 4 eingesetzt. Auf die Holzteile 5 bzw. 6 des Fensterstockes 2 bzw. des Fensterflügels 3 sind aus Aluminium bestehende Leichtmetallprofile 7 bzw. 8 aufgesetzt, z. B. gekantete Aluminiumbleche oder stranggepreßte Profile. Diese Leichtmetallprofile, deren Profil in großen Zügen dem Profil der Außenseite des zugehörigen Holzteiles 5 bzw. 6 folgt, sind jedoch nicht unmittelbar auf die Holzteile 5, 6 aufgesetzt, sondern unter Zwischenschaltung von Distanzstücken 9, insbesondere flachen Aluminiumplatten, die an den Holzteilen 5, 6 des Fensterstockes 2 bzw. des Fensterflügels 3 in Abständen voneinander mittels Schrauben 10 befestigt sind. Diese Distanzstücke 9 sind an den Ecken des Fensterstockes 2 bzw. des Fensterflügels 3, insbesondere in Dreiecksform, vorgesehen, weiters dazwischen in Form rechteckiger Platten in Abständen von etwa 50 cm. Dadurch liegen die Leichtmetallprofile 7 bzw. 8 in einem Abstand von den Holzteilen 5, 6, wodurch jeweils ein Hohlraum 11 bzw. 12 gebildet wird. Vor der Aufsetzung der Leichtmetallprofile 7, 8 werden an den Holzteilen 5, 6 zwischen den Distanzstücken 9 beidseitig selbstklebende Einlagen 13 angeklebt, insbesondere beidseitig selbstklebende Schaumstoffplatten, die dieselbe Dicke haben wie die plattenförmigen Distanzstücke 9. In der Folge werden an den inneren Längskanten der Holzteile 5, 6 Schichten 14 aus einem elastischen Kleber, insbesondere einem Silikonkleber, aufgetragen und auf die Distanzstücke 9 eine dünne Schicht 15 aus einem Metallkleber, wobei zuvor die Köpfe der Schrauben 10 abgedeckt werden, damit dieser Metallkleber die Distanzstücke 9 mit den Schrauben 10 nicht verbinden kann. Sodann werden die losen Leichtmetallprofile 7 bzw. 8, die an ihren Enden auf Gehrung 30 geschnitten sind, an die Holzteile 5, 6 des Fensterstockes 2 bzw. des Fensterflügels 3 angedrückt. Hiebei gewähren die beidseitig selbstklebenden Einlagen 13 sofort Halt, so daß die Holzteile 5, 6 genügend fest mit den Leichtmetallprofilen 7, 8 verbunden sind, um die sofortige Weiterarbeit am Fenster zu ermöglichen. Die Leichtmetallprofile können daher einzeln bzw. elementweise an den Holzteilen befestigt werden und es ist nicht erforderlich, die Leichtmetallprofile vor der Verbindung mit den Holzteilen zu einem fixen Rahmen zusammenzusetzen. Nach etwa einem Tag härtet die Schicht 15 des Metallklebers aus und stellt somit eine kompakte Verbindung zwischen dem Leichtmetallrahmen und dem Holzrahmen dar. Hiebei kann jedoch der Leichtmetallrahmen unabhängig vom Holzrahmen arbeiten, da ein Spiel zwischen den Distanzstücken 9 und den Schrauben 10 dadurch gegeben ist, daß die Löcher 16 der Distanzstücke 9, durch welche die Schrauben 10 hindurchgesteckt sind, zumindest in der Längsrichtung der Profile 7, 8 größer sind als der Schaftdurchmesser der Schrauben 10, jedoch in Querrichtung der Profillängsrichtung kleiner als der Kopfdurchmesser dieser Schrauben. Durch solche Langlöcher wird unterschiedlichen Wärmedehnungen in Längsrichtung der Leichtmetallprofile 7 bzw. 8 und der Holzteile 5 bzw. 6 Rechnung getragen, welche Relativdehnung durch die Elastizität der Silikonkleberschicht 14 gewahrt bleibt.In the building opening 1, the window frame 2 is inserted, which interacts with at least one window sash 3. In the window sash 3, double glazing 4 is used in a conventional manner. On the wooden parts 5 and 6 of the window frame 2 and the window sash 3 are made of aluminum light metal profiles 7 and 8, z. B. folded aluminum sheets or extruded profiles. These light metal profiles, the profile of which broadly follows the profile of the outside of the associated wooden part 5 or 6, are not placed directly on the wooden parts 5, 6, but with the interposition of spacers 9, in particular flat aluminum plates attached to the wooden parts 5, 6. 6 of the window frame 2 or the window sash 3 are fastened at intervals from one another by means of screws 10. These spacers 9 are provided at the corners of the window frame 2 or the window sash 3, in particular in a triangular shape, furthermore in the form of rectangular plates at intervals of approximately 50 cm. As a result, the light metal profiles 7 and 8 are at a distance from the wooden parts 5, 6, whereby a cavity 11 and 12 is formed in each case. Before the light metal profiles 7, 8 are placed, self-adhesive inserts 13 are glued to the wooden parts 5, 6 between the spacers 9, in particular self-adhesive foam sheets which have the same thickness as the plate-shaped spacers 9 5, 6 layers 14 made of an elastic adhesive, in particular a silicone adhesive, and a thin layer 15 made of a metal adhesive on the spacers 9, the heads of the screws 10 being covered beforehand so that this metal adhesive does not connect the spacers 9 to the screws 10 can. Then the loose light metal profiles 7 and 8, which are cut at their ends with miter 30, are pressed against the wooden parts 5, 6 of the window frame 2 and the window sash 3. Hiebei the two-sided self-adhesive inserts 13 immediately hold, so that the wooden parts 5, 6 are sufficiently firmly connected to the light metal profiles 7, 8 to enable immediate further work at the window. The light metal profiles can therefore be attached individually or element by element to the wooden parts and it is not necessary to assemble the light metal profiles into a fixed frame before connecting them to the wooden parts. After about a day, the layer 15 of the metal adhesive hardens and thus represents a compact connection between the light metal frame and the wooden frame. However, the light metal frame can work independently of the wooden frame since there is play between the spacers 9 and the screws 10, that the holes 16 of the spacers 9, through which the screws 10 are inserted, at least in the The longitudinal direction of the profiles 7, 8 are larger than the shank diameter of the screws 10, but smaller in the transverse direction of the profile longitudinal direction than the head diameter of these screws. Through such elongated holes, different thermal expansions in the longitudinal direction of the light metal profiles 7 and 8 and the wooden parts 5 and 6 are taken into account, which relative expansion is maintained by the elasticity of the silicone adhesive layer 14.

Die Distanzstücke 9 in den Ecken des Fensterstockes 2 bzw. des Fensterflügels 3 stellen zugleich nach dem Aushärten der Metallkleberschicht 15 eine starre Eckverbindung des Leichtmetallprofilrahmens dar.The spacers 9 in the corners of the window frame 2 or the window sash 3 also represent a rigid corner connection of the light metal profile frame after the metal adhesive layer 15 has hardened.

Die Hohlräume 11 bzw. 12 gewährleisten eine Hinterlüftung des hinter der von den Leichtmetallprofilen gebildeten Verkleidung liegenden Holzes. Um eine Zirkulation der Luft in diesen Hohlräumen 11, 12 zu erzielen, sind in den Leichtmetallprofilen 7 bzw. 8 oben oder unten Löcher 17 bzw. 18 vorgesehen. Für die oberen Abschnitte des Fensterstockes 2 bzw. des Fensterflügels 3 liegen die Löcher 17 zweckmäßig oben, für die unteren Abschnitte hingegen sind die Löcher 18 unten angeordnet, um diese Löcher 17 bzw. 18 möglichst gegen den Zutritt von Schlagregen zu schützen.The cavities 11 and 12 ensure rear ventilation of the wood lying behind the cladding formed by the light metal profiles. In order to achieve a circulation of air in these cavities 11, 12, holes 17 and 18 are provided in the light metal profiles 7 and 8 above or below. For the upper sections of the window frame 2 or the window sash 3, the holes 17 are expediently at the top, for the lower sections, however, the holes 18 are arranged at the bottom in order to protect these holes 17 and 18 as far as possible against the entry of driving rain.

Das Profil des Fensterflügels 3 weist zweckmäßig eine Wassernase 19 auf, von der heruntertropfendes Wasser stets direkt auf die von dem Leichtmetallprofil 7 gebildete Verkleidung des Fensterstockes 2 gelangt. Das Profil des Fensterflügels 3 wird außenseitig von einer in eine Nut 21 des Holzteiles 6 eingesetzten Gummidichtung 22 abgedeckt, so daß kein Wasser eindringen kann. Eine zweite Gummidichtung 23 ist in eine Nut 24 des Holzteiles 6 weiter innen eingesetzt. Die beiden Gummidichtungen 22, 23 gewährleisten die Dichtheit des Fensters.The profile of the window sash 3 expediently has a water nose 19, from which dripping water always reaches the cladding of the window frame 2 formed by the light metal profile 7. The profile of the window sash 3 is covered on the outside by a rubber seal 22 inserted into a groove 21 of the wooden part 6, so that no water can penetrate. A second rubber seal 23 is inserted in a groove 24 of the wooden part 6 further inside. The two rubber seals 22, 23 ensure the tightness of the window.

Das äußere Aussehen bzw. der optische Eindruck des Fensters entspricht eher einem Holzfenster, weil der Fensterflügel 3 in Bezug auf den Fensterstock 2 zurück, d. h. nach innen zu versetzt ist und nicht flächenbündig wie bei den herkömmlichen Holz-Aluminium-Fenstern liegt. Infolge der beschriebenen Verarbeitungstechnik ist das dargestellte Fenster wesentlich billiger herzustellen als herkömmliche Holz-Aluminiumfenster.The external appearance or the visual impression of the window corresponds more to a wooden window, because the window sash 3 with respect to the window frame 2 back, i. H. is offset towards the inside and does not lie flush as with conventional wood-aluminum windows. As a result of the processing technology described, the window shown is much cheaper to produce than conventional wood-aluminum windows.

Allenfalls hinter das Leichtmetallprofil 7 des Fensterstockes 2 gelangtes Wasser wird durch eine Leiste 25 aufgefangen und durch einen Kanal 26 in den Hohlraum 11 geleitet, von wo es durch die Löcher 18 nach unten abfließen kann.Any water that has passed behind the light metal profile 7 of the window frame 2 is collected by a strip 25 and passed through a channel 26 into the cavity 11, from where it can flow down through the holes 18.

Claims (7)

1. Wooden window frame provided with an exterior cladding made of light metal, in particular aluminium, wherein the light metal sections (7, 8) which form the cladding are held spaced apart from the wooden parts (5, 6) of the window casement (3) resp. window casing (2) by spacing members (9) which are connected with, in particular screwed to, the wooden parts (5, 6) of the window casement (3) resp. window casing (2) by means of connecting members (10), characterised in that the spacing members (9) are glued together rigidly with the light metal sections (7, 8) and are connected, by means of the connecting members (10), with the wooden parts (5, 6) of the window casement (3) resp. window casing (2), with clearance at least in the longitudinal direction of the light metal sections (7, 8), and in that spacing members (9), arranged in the corners of the window casement (3) resp. of the window casing (2), are glued together with the two parts of the light metal sections (7, 8) which impact in the corner region, in such a way that the spacing members (9), with their gluing, form a rigid corner connection of the light metal sections (7, 8).
2. Window frame according to claim 1, characterised in that the spacing members (9) are formed from flat light metal plates, in particular made of aluminium.
3. Window frame according to claim 1 or 2, characterised in that the connecting members are formed by screws (10) which pass through slots (16) of the spacing members (9) lying in the longitudinal direction of the sections (7, 8).
4. Window frame according to claim 1, 2 or 3, characterised in that the heads of the screws (10) are covered to protect them from the adhesive substance which is used to glue together the spacing members (9) and the light metal sections (7, 8).
5. Window frame according to one of the claims 1 to 4, characterised in that insert parts (13) which are adhesive on both sides, in particular flat pieces of foam material, are arranged between the spacing members (9), their thickness being equal to the thickness of the spacing members (9).
6. Window frame according to one of the claims 1 to 5, characterised in that the light metal sections (7, 8) are glued together with the wooden parts (5, 6) on their longitudinal edges by means of a layer (14) of a resilient adhesive, in particular a silicon adhesive.
7. Window frame according to one of the claims 1 to 6, characterised in that the hollow space (11, 12) formed by the spacing between the light metal sections (7, 8) and the wooden parts (5, 6) is ventilated by holes (17, 18) in the light metal sections (7, 8).
EP19840890219 1983-11-16 1984-11-16 Wooden window frame provided with an exterior light metal cladding Expired EP0149991B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4023/83 1983-11-16
AT402383A AT384460B (en) 1983-11-16 1983-11-16 WITH AN EXTERNAL COVERING FROM LIGHT METAL, ESPECIALLY ALUMINUM, PROVIDED WOODEN WINDOW

Publications (2)

Publication Number Publication Date
EP0149991A1 EP0149991A1 (en) 1985-07-31
EP0149991B1 true EP0149991B1 (en) 1989-02-01

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Application Number Title Priority Date Filing Date
EP19840890219 Expired EP0149991B1 (en) 1983-11-16 1984-11-16 Wooden window frame provided with an exterior light metal cladding

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EP (1) EP0149991B1 (en)
AT (1) AT384460B (en)
DE (1) DE3476569D1 (en)

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CN102913111A (en) * 2012-11-21 2013-02-06 哈尔滨森鹰窗业股份有限公司 Aluminium-plastic-wood composite heat insulating window with four seals between frames and sashes
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Also Published As

Publication number Publication date
ATA402383A (en) 1987-04-15
EP0149991A1 (en) 1985-07-31
DE3476569D1 (en) 1989-03-09
AT384460B (en) 1987-11-25

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