EP3051050B1 - Insulating glass with load bearing properties - Google Patents

Insulating glass with load bearing properties Download PDF

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Publication number
EP3051050B1
EP3051050B1 EP16152578.7A EP16152578A EP3051050B1 EP 3051050 B1 EP3051050 B1 EP 3051050B1 EP 16152578 A EP16152578 A EP 16152578A EP 3051050 B1 EP3051050 B1 EP 3051050B1
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EP
European Patent Office
Prior art keywords
adhesive
insulating glass
glass
region
insulating
Prior art date
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Active
Application number
EP16152578.7A
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German (de)
French (fr)
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EP3051050A1 (en
Inventor
Bruno Kassnel-Henneberg
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Glas Troesch Holding AG
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Glas Troesch Holding AG
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Publication of EP3051050A1 publication Critical patent/EP3051050A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/88—Curtain walls
    • E04B2/90—Curtain walls comprising panels directly attached to the structure
    • E04B2/92—Sandwich-type panels
    • 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
    • E06B3/02—Wings made completely of glass
    • E06B3/025—Wings made completely of glass consisting of multiple glazing units
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/5409—Means for locally spacing the pane from the surrounding 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/56—Fixing of glass panes or like plates by means of putty, cement, or adhesives only
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/64—Fixing of more than one pane to a frame
    • E06B3/645—Fixing of more than one pane to a frame of units comprising two or more parallel panes to frames designed for single panes only, e.g. having too shallow a rabbet
    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/6612—Evacuated glazing units
    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/6621—Units comprising two or more parallel glass or like panes permanently secured together with special provisions for fitting in window frames or to adjacent units; Separate edge protecting strips
    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/6621—Units comprising two or more parallel glass or like panes permanently secured together with special provisions for fitting in window frames or to adjacent units; Separate edge protecting strips
    • E06B3/6625—Units comprising two or more parallel glass or like panes permanently secured together with special provisions for fitting in window frames or to adjacent units; Separate edge protecting strips molded on the edges
    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66366—Section members positioned at the edges of the glazing unit specially adapted for units comprising more than two panes or for attaching intermediate sheets
    • 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
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67339—Working the edges of already assembled units
    • E06B3/67343—Filling or covering the edges with synthetic hardenable substances

Definitions

  • the invention relates to an insulating glass, which can be used in particular as a load-bearing structure in facade construction.
  • a multi-pane insulating glass is a component for windows, which comprises at least two glass panes. Between the glass panes is a space between the panes, which is filled with air or a gas, in particular a noble gas. Spacers are used to mechanically hold the glass sheets together at a distance.
  • a spacer for example, profiles of aluminum, stainless steel or plastic, which are connected on both sides by means of a layer of a sealant, in particular polyisobutylene, with the glass sheets.
  • the Dichtsoff also acts as an adhesive that glues the glass with the spacer.
  • the space between the glass sheet edge and the spacer is filled with a polymer, for example a polyurethane, in order to achieve a further sealing and gluing of the glass sheets.
  • Such an insulating glass discloses the WO 2010/088904 (VKR Holding A / S).
  • the insulating glass described may have two glass panes, wherein the edge compound comprises the edges of both glass panes.
  • the edge bond is preferably cast onto the glass sheets, in particular using a polyurethane, for example a polyurethane with a Shore A hardness of 60-90.
  • a spacer can be arranged between the two glass sheets.
  • an insulating glass is stable enough to withstand loads that occur for example by wind
  • a frame made of plastic, aluminum or wood which frames the insulating glass circumferentially.
  • the insulating glass is stiffened by the frame. If the insulating glass is also to assume a supporting function, for example in facade construction, in which, for example, the insulating glass is used without the support of a frame system, then this is only possible to a limited extent.
  • the glass sheets must be made stiff in such a case, in order to be able to remove the loads.
  • the object of the invention is to provide a the above-mentioned technical field belonging to insulating glass, which waives a frame system and which can be used in the construction of facades as a supporting structure.
  • the insulating glass comprises at least two spaced apart glass panes. At least in the region of edges of the glass panes, an edge bond is arranged between them.
  • the edge seal consists of a spacer and at least one adhesive, wherein the edge seal at least in the region of two opposite edges comprises a first adhesive having a stiffness of at least 50 N / mm2, preferably at least 100 N / mm2 in the cured state.
  • a relatively rigid insulating glass is produced, which has a high resistance , Therefore, such an insulating glass exert a supporting function, especially in facade construction, the insulating glass pane only at the two edges, in the region of the first adhesive is arranged, must be stored.
  • the two other known do not have to be supported by a common facade substructure (post). It can be completely dispensed with a frame construction or reduced to minimal dimensions.
  • Spacers are known in the art. These can be made of any material, such as aluminum.
  • a spacer made of a polymer is used in the inventive insulating glass, whereby the thermal conductivity can be reduced, which has a positive effect on the thermal insulation of an inventive insulating glass.
  • the spacer may be configured as a hollow profile or as a solid profile.
  • the first adhesive preferably has constant mechanical properties, in particular the aforementioned stiffness in a temperature range of at least -20 ° C to at least + 80 ° C.
  • the structural dimensioning of the insulating glass does not vary too much as a function of the temperature.
  • an efficient applicability of the insulating glass against wind and climate loads in a wide temperature range is given.
  • a sealant in particular polyisobutyl, is arranged between each of a glass pane and the spacer, as known from the prior art.
  • the distance between the at least two glass panes is preferably between 8 mm and 20 mm.
  • the first adhesive preferably completely fills the intermediate space between the at least two glass panes in height, that is to say that the thickness of the first adhesive corresponds to the distance between the at least two panes of glass.
  • the first adhesive has a short-term strength for removing wind loads of at least 5 N / mm 2 , preferably of at least 10 N / mm 2 .
  • Short-term strength is understood to mean the strength of the adhesive which it has during wind loads of between 3 seconds and 10 seconds.
  • the first adhesive is preferably applied in the region of the at least two mutually opposite edges over a width of 20 mm to 200 mm, in particular from 20 mm to 120 mm, from the edge in the direction of the center of the glass panes.
  • the variation of the width of the first adhesive in this area allows for an optimum adjustment of the rigidity and strength of the insulating glass according to the expected load while using thin glass panes. As a result, material can be saved, which reduces the manufacturing cost of an inventive insulating glass pane.
  • the width of the applied first adhesive can be adjusted.
  • the mechanical requirements are determined in particular by the climatic conditions and the expected maximum wind loads at the site of the insulating glass.
  • the at least two glass sheets are rectangular, with the longer of the four edges having a length of at least 2 meters.
  • the edge compound has the first adhesive in the region of those opposite edges, in which in the intended use of the insulating glass this is stored.
  • the first adhesive in these areas, a targeted stiffening of the edge bond can be achieved in the region of those edges which are subjected to the greatest stress.
  • the edge bond in the region of the further edges of the glass panes comprises at least one second adhesive which has a lower rigidity than the first adhesive.
  • the stress of the edge bond in particular due to climatic stress, along the edges where the insulating glass is not stored, can be reduced.
  • the at least one second adhesive is preferably applied to a smaller width in the region of the further edges than the first adhesive in the region of the two opposite edges.
  • the width of the adhesive application can be reduced in the region of the other edges.
  • both material costs can be saved and the visual appearance of the insulating glass pane can be improved.
  • the width of the adhesive in the region of each edge is adjusted according to the expected forces, which are to be expected on the basis of the planned location, the prevailing climatic conditions and the size of the insulating glass pane.
  • At least one anchoring element is preferably used in the region of the at least two opposite edges in the first adhesive.
  • the insulating glass according to the invention can be connected to other structures, such as steel beams. Since the first adhesive has a high tensile strength, it is possible with the inventive insulating glass to fix anchoring elements directly and without the aid of other components on the insulating glass itself.
  • a foil of a polymer is stretched between the at least two glass panes and parallel to them, the foil being spaced apart from the glass panes by at least one spacer each.
  • an additional thermal insulation layer can be introduced into the insulating glass, without the insulating glass undergoes a significant increase in weight - as would be the case when arranging a further glass pane in the insulating glass.
  • the film is spaced in each case via a spacer from the glass panes.
  • the outermost of the at least two glass panes preferably consist of a glass laminate. As a result, the resistance of the insulating glass can be additionally increased.
  • the Fig. 1 shows a schematic representation of an inventive insulating glass 1.
  • the insulating glass 1 comprises two glass sheets, which are held by a spacer 12 spaced from each other.
  • the spacer 12 in a first region 8 and a second region 9, which adjoin a first edge 4 or an edge 4 opposite the first edge 4, are arranged at a first distance D1.
  • the spacer 12 is arranged at a second distance D2 to form a third edge 6 or a fourth edge 7.
  • the first distance D1 is greater than the second distance D2.
  • first adhesive with a rigidity of at least 50 N / mm 2 in the cured state.
  • second adhesive is introduced between the third edge 6 or the fourth edge 7 and the spacer 12, which in the cured state has a lower rigidity than the first adhesive.
  • the spacer 12 and the first adhesive or the second adhesive form the so-called. Edge compound of the insulating glass first
  • Figs. 2a to 2c show sections of inventive insulating glass in cross section.
  • Fig. 2a a cross-section through the first region 8 is shown.
  • the spacer 12 is arranged at the first distance D1 from the first edge 4 between the first glass pane 2 and the second glass pane 3.
  • a gap 13 which can be filled, for example, with an inert gas.
  • the spacer 12 is shown for illustrative reasons in the form of a quadrangle. However, one skilled in the art should appreciate that the spacer 12 may be in any suitable form.
  • Various forms and configurations for spacers are known from the prior art.
  • an adhesive and sealant such as polyisobutyl will preferably be arranged between the spacer 12 and the glass sheets 2, 3, as is known from the prior art.
  • the first adhesive is introduced.
  • the cross section through the second region 9, which adjoins the second edge 5 opposite the first edge 4 is identical to the cross section shown here.
  • the Fig. 2b shows a cross section through the third region 10.
  • the spacer 12 is at a second distance D2 spaced from the third edge 6 between the two glass panes 2, 3 are arranged.
  • the second adhesive is introduced in the space between the two glass sheets 2, 3 and the third edge 4 and the spacer 12.
  • the cross section through the fourth region 11 is identical to the cross section shown here.
  • the Fig. 2c represents a further embodiment of an insulating glass 1 according to the present invention.
  • a further adhesive or a sealant is introduced between the first edge 5 and the Spacer 12 in a first portion 14 of the first adhesive between the two glass panes 2, 3 introduced.
  • a further adhesive or a sealant is introduced in a second portion 15.
  • the Fig. 3 shows a section of another embodiment of an insulating glass 1 in cross section.
  • an anchoring element 16 is inserted in the second adhesive.
  • the insulating glass 1 can be connected, for example, with other elements.
  • FIG. 4 another embodiment of an insulating glass 1 is shown.
  • a film 17 is disposed between the two glass sheets 2, 3, which is spaced by a respective spacer 12 from the glass sheets 2, 3.
  • the film 12 is embedded in the first adhesive.
  • the film 17 forms an additional thermal barrier between the two glass panes 2, 3, which increases the thermal insulation of the insulating glass 1.

Description

Technisches GebietTechnical area

Die Erfindung betrifft ein Isolierglas, welches insbesondere im Fassadenbau als tragende Struktur eingesetzt werden kann.The invention relates to an insulating glass, which can be used in particular as a load-bearing structure in facade construction.

Stand der TechnikState of the art

Ein Mehrscheibenisolierglas ist ein Bauelement für Fenster, welches mindestens zwei Glasscheiben umfasst. Zwischen den Glasscheiben befindet sich ein Scheibenzwischenraum, welcher mit Luft oder einem Gas, insbesondere einem Edelgas gefüllt ist. Um die Glasscheiben mechanisch auf Distanz zusammenzuhalten werden Abstandhalter eingesetzt.A multi-pane insulating glass is a component for windows, which comprises at least two glass panes. Between the glass panes is a space between the panes, which is filled with air or a gas, in particular a noble gas. Spacers are used to mechanically hold the glass sheets together at a distance.

Als Abstandhalter bekannt sind beispielsweise Profile aus Aluminium, Edelstahl oder Kunststoff, welche beidseitig mittels einer Schicht eines Dichtstoffs, insbesondere Polyisobutylen, mit den Glasscheiben verbunden sind. Der Dichtsoff wirkt zudem als Klebstoff, der die Glasscheiben mit dem Abstandhalter verklebt. Üblicherweise wird der Zwischenraum zwischen der Glasscheibenkante und dem Abstandhalter mit einem Polymer, zum Beispiel einem Polyurethan aufgefüllt, um eine weitere Abdichtung und ein Verkleben der Glasscheiben zu erzielen.As a spacer known, for example, profiles of aluminum, stainless steel or plastic, which are connected on both sides by means of a layer of a sealant, in particular polyisobutylene, with the glass sheets. The Dichtsoff also acts as an adhesive that glues the glass with the spacer. Usually, the space between the glass sheet edge and the spacer is filled with a polymer, for example a polyurethane, in order to achieve a further sealing and gluing of the glass sheets.

Ein derartiges Isolierglas offenbart beispielsweise die WO 2010/088904 (VKR Holding A/S). Das beschriebene Isolierglas kann über zwei Glasscheiben verfügen, wobei der Randverbund die Kanten beider Glasscheiben umfasst. Der Randverbund wird vorzugsweise auf die Glasscheiben gegossen, wobei insbesondere ein Polyurethan verwendet wird, zum Beispiel ein Polyurethan mit einer Shore A Härte von 60 - 90. Zwischen den zwei Glasscheiben kann ein Abstandhalter angeordnet sein.Such an insulating glass, for example, discloses the WO 2010/088904 (VKR Holding A / S). The insulating glass described may have two glass panes, wherein the edge compound comprises the edges of both glass panes. The edge bond is preferably cast onto the glass sheets, in particular using a polyurethane, for example a polyurethane with a Shore A hardness of 60-90. A spacer can be arranged between the two glass sheets.

Damit ein Isolierglas stabil genug ist, um Lasten, die beispielsweise durch Wind auftreten, zu widerstehen, wird heute ein Rahmen aus Kunststoff, Aluminium oder Holz verwendet, welcher das Isolierglas umlaufend einrahmt. Das Isolierglas wird durch den Rahmen ausgesteift. Soll das Isolierglas zudem eine tragende Funktion, beispielsweise im Fassadenbau, übernehmen, bei der z.B. das Isolierglas ohne Unterstützung durch ein Rahmensystem eingesetzt wird, so ist dies nur eingeschränkt möglich. Die Glasscheiben müssen in einem solchen Fall entsprechend steif ausgebildet werden, um die Lasten abtragen zu können.So that an insulating glass is stable enough to withstand loads that occur for example by wind, today a frame made of plastic, aluminum or wood is used, which frames the insulating glass circumferentially. The insulating glass is stiffened by the frame. If the insulating glass is also to assume a supporting function, for example in facade construction, in which, for example, the insulating glass is used without the support of a frame system, then this is only possible to a limited extent. The glass sheets must be made stiff in such a case, in order to be able to remove the loads.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, eine dem eingangs genannten technischen Gebiet zugehörendes Isolierglas zu schaffen, bei welchem auf ein Rahmensystem verzichtet und welches im Fassadenbau als tragende Struktur eingesetzt werden kann.The object of the invention is to provide a the above-mentioned technical field belonging to insulating glass, which waives a frame system and which can be used in the construction of facades as a supporting structure.

Die Lösung der Aufgabe ist durch die Merkmale des Anspruchs 1 definiert. Gemäss der Erfindung umfasst das Isolierglas mindestens zwei voneinander beabstandete Glasscheiben. Wenigstens im Bereich von Kanten der Glasscheiben ist zwischen diesen ein Randverbund angeordnet. Der Randverbund besteht aus einem Abstandhalter sowie mindestens einem Klebstoff, wobei der Randverbund mindestens im Bereich von zwei einander gegenüberliegenden Kanten einen ersten Klebstoff umfasst, der im ausgehärteten Zustand eine Steifigkeit von mindestens 50 N/mm2, vorzugsweise von mindestens 100 N/mm2 aufweist.The solution of the problem is defined by the features of claim 1. According to the invention, the insulating glass comprises at least two spaced apart glass panes. At least in the region of edges of the glass panes, an edge bond is arranged between them. The edge seal consists of a spacer and at least one adhesive, wherein the edge seal at least in the region of two opposite edges comprises a first adhesive having a stiffness of at least 50 N / mm2, preferably at least 100 N / mm2 in the cured state.

Durch die Verwendung eines ersten Klebstoffs mit einer derart hohen Steifigkeit bei einer Belastungsdauer die typischerweise bei einer Windlast, welche gemäss der Norm SIA 261 von 2014 mit einer Einwirkungsdauer von 3 bis 10 Sekunden auftritt, wird ein relativ steifes Isolierglas erzeugt, welches einen hohen Widerstand aufweist. Daher kann ein solches Isolierglas eine tragende Funktion insbesondere im Fassadenbau ausüben, wobei die Isolierglasscheibe nur noch an den zwei Kanten, in deren Bereich der erste Klebstoff angeordnet ist, gelagert werden muss. Die beiden anderen Kannten müssen dabei nicht durch eine übliche Fassadenunterkonstruktion (Pfosten) gestützt werden. Dabei kann auf eine Rahmenkonstruktion ganz verzichtet werden oder diese auf minimale Abmessungen reduziert werden.By using a first adhesive having such a high rigidity at a load duration typically occurring in a wind load, which occurs according to the standard SIA 261 of 2014 with an exposure time of 3 to 10 seconds, a relatively rigid insulating glass is produced, which has a high resistance , Therefore, such an insulating glass exert a supporting function, especially in facade construction, the insulating glass pane only at the two edges, in the region of the first adhesive is arranged, must be stored. The two other known do not have to be supported by a common facade substructure (post). It can be completely dispensed with a frame construction or reduced to minimal dimensions.

Abstandhalter sind aus dem Stand der Technik bekannt. Diese können aus einem beliebigen Material gefertigt sein, wie beispielsweise Aluminium. Vorzugsweise wird beim erfindungsgemässen Isolierglas ein Abstandhalter aus einem Polymer verwendet, wodurch die Wärmeleitfähigkeit reduziert werden kann, was sich positiv auf die Wärmedämmung eines erfindungsgemässen Isolierglases auswirkt. Der Abstandhalter kann als Hohlprofil oder als Vollprofil ausgestaltet sein.Spacers are known in the art. These can be made of any material, such as aluminum. Preferably, a spacer made of a polymer is used in the inventive insulating glass, whereby the thermal conductivity can be reduced, which has a positive effect on the thermal insulation of an inventive insulating glass. The spacer may be configured as a hollow profile or as a solid profile.

Der erste Klebstoff weist vorzugsweise gleichbleibende mechanische Eigenschaften, insbesondere die genannte Steifigkeit in einem Temperaturbereich von mindestens - 20°C bis mindestens +80°C auf. Dadurch variiert die strukturelle Bemessung des Isolierglases nicht zu stark in Abhängigkeit der Temperatur. Damit ist eine effiziente Anwendbarkeit des Isolierglases gegenüber Wind- wie auch Klimalasten in einem breiten Temperaturbereich gegeben.The first adhesive preferably has constant mechanical properties, in particular the aforementioned stiffness in a temperature range of at least -20 ° C to at least + 80 ° C. As a result, the structural dimensioning of the insulating glass does not vary too much as a function of the temperature. Thus, an efficient applicability of the insulating glass against wind and climate loads in a wide temperature range is given.

Vorzugsweise ist zwischen je einer Glasscheibe und dem Abstandhalter wie aus dem Stand der Technik bekannt ein Dichtstoff, insbesondere Polyisobutyl, angeordnet.Preferably, a sealant, in particular polyisobutyl, is arranged between each of a glass pane and the spacer, as known from the prior art.

Der Abstand zwischen den mindestens zwei Glasscheiben beträgt vorzugsweise zwischen 8 mm und 20 mm. Der erste Klebstoff füllt vorzugsweise den Zwischenraum zwischen den mindestens zwei Glasscheiben in der Höhe vollständig aus, das heisst, dass die Dicke des ersten Klebstoffs dem Abstand zwischen den mindestens zwei Glasscheiben entspricht.The distance between the at least two glass panes is preferably between 8 mm and 20 mm. The first adhesive preferably completely fills the intermediate space between the at least two glass panes in height, that is to say that the thickness of the first adhesive corresponds to the distance between the at least two panes of glass.

Vorzugsweise weist der erste Klebstoff eine Kurzzeitfestigkeit zur Abtragung von Windlasten von mindestens 5 N/mm2, vorzugsweise von mindestens 10 N/mm2. Unter Kurzzeitfestigkeit wird die Festigkeit des Klebstoffs verstanden, welche dieser während Windbelastungen zwischen 3 Sekunden und 10 Sekunden aufweist.Preferably, the first adhesive has a short-term strength for removing wind loads of at least 5 N / mm 2 , preferably of at least 10 N / mm 2 . Short-term strength is understood to mean the strength of the adhesive which it has during wind loads of between 3 seconds and 10 seconds.

Bevorzugt ist der erste Klebstoff im Bereich der mindestens zwei einander gegenüberliegenden Kanten auf einer Breite von 20 mm bis 200 mm, insbesondere von 20 mm bis 120 mm von der Kante in Richtung Mitte der Glasscheiben hin aufgetragen.The first adhesive is preferably applied in the region of the at least two mutually opposite edges over a width of 20 mm to 200 mm, in particular from 20 mm to 120 mm, from the edge in the direction of the center of the glass panes.

Die Variation der Breite des ersten Klebstoffs in diesem Bereich ermöglicht eine optimale Anpassung der Steifigkeit und der Festigkeit des Isolierglases entsprechend der erwarteten Belastung bei gleichzeitiger Verwendung dünner Glasscheiben. Dadurch kann Material eingespart werden, was die Herstellungskosten einer erfindungsgemässen Isolierglasscheibe reduziert.The variation of the width of the first adhesive in this area allows for an optimum adjustment of the rigidity and strength of the insulating glass according to the expected load while using thin glass panes. As a result, material can be saved, which reduces the manufacturing cost of an inventive insulating glass pane.

Je nach mechanischen Anforderungen an das Isolierglas kann die Breite des aufgetragenen ersten Klebstoffs angepasst werden. Die mechanischen Anforderungen werden insbesondere durch die klimatischen Bedingungen sowie die erwarteten maximalen Windlasten am Einsatzort des Isolierglases bestimmt.Depending on the mechanical requirements of the insulating glass, the width of the applied first adhesive can be adjusted. The mechanical requirements are determined in particular by the climatic conditions and the expected maximum wind loads at the site of the insulating glass.

Vorzugsweise sind die mindestens zwei Glasscheiben rechteckig, wobei die längeren der vier Kanten eine Länge von mindestens 2 Metern aufweisen. Mit der erfindungsgemässen Lösung lassen sich auch grosse Isoliergläser verwirklichen, da diese durch die im Vergleich zu Isoliergläsern gemäss Stand der Technik relativ hohe Festigkeit eine hohe Stabilität aufweisen.Preferably, the at least two glass sheets are rectangular, with the longer of the four edges having a length of at least 2 meters. With the solution according to the invention, it is also possible to realize large insulating glasses, since they have a high stability due to their relatively high strength in comparison with insulating glasses according to the prior art.

Bevorzugt weist der Randverbund den ersten Klebstoff im Bereich derjenigen sich gegenüberliegenden Kanten auf, bei welchen bei der beabsichtigten Verwendung des Isolierglases dieses gelagert ist. Durch diese Anordnung des ersten Klebstoffs in diesen Bereichen kann eine gezielte Versteifung des Randverbundes im Bereich derjenigen Kanten erzielt werden, welche der grössten Belastung ausgesetzt sind.Preferably, the edge compound has the first adhesive in the region of those opposite edges, in which in the intended use of the insulating glass this is stored. By this arrangement of the first adhesive in these areas, a targeted stiffening of the edge bond can be achieved in the region of those edges which are subjected to the greatest stress.

Erfindungsgemäss umfasst der Randverbund im Bereich der weiteren Kanten der Glasscheiben mindestens einen zweiten Klebstoff, welcher eine geringere Steifigkeit aufweist, als der erste Klebstoff.According to the invention, the edge bond in the region of the further edges of the glass panes comprises at least one second adhesive which has a lower rigidity than the first adhesive.

Durch die Verwendung eines zweiten Klebstoffs mit geringerer Steifigkeit kann die Beanspruchung des Randverbundes, insbesondere infolge Klimabelastung, entlang der Kanten, an denen das Isolierglas nicht gelagert ist, reduziert werden.By using a second adhesive with less rigidity, the stress of the edge bond, in particular due to climatic stress, along the edges where the insulating glass is not stored, can be reduced.

Bevorzugt ist der mindestens eine zweite Klebstoff im Bereich der weiteren Kanten auf einer kleineren Breite aufgetragen, als der erste Klebstoff im Bereich der zwei gegenüberliegenden Kanten.The at least one second adhesive is preferably applied to a smaller width in the region of the further edges than the first adhesive in the region of the two opposite edges.

Insbesondere wenn der erste Klebstoff im Bereich derjenigen Kanten aufgetragen ist, die den grössten Belastungen ausgesetzt sind, kann im Bereich der weiteren Kanten die Breite des Klebstoffauftrags reduziert werden. Dadurch können sowohl Materialkosten gespart sowie die optische Erscheinung der Isolierglasscheibe verbessert werden.In particular, when the first adhesive is applied in the region of those edges which are exposed to the greatest loads, the width of the adhesive application can be reduced in the region of the other edges. As a result, both material costs can be saved and the visual appearance of the insulating glass pane can be improved.

Vorzugsweise wird die Breite des Klebstoffs im Bereich jeder Kante entsprechend den zu erwartenden Kräften, welche aufgrund des geplanten Einsatzortes, der vorherrschenden klimatischen Verhältnisse sowie der Grösse der Isolierglasscheibe zu erwarten sind, angepasst.Preferably, the width of the adhesive in the region of each edge is adjusted according to the expected forces, which are to be expected on the basis of the planned location, the prevailing climatic conditions and the size of the insulating glass pane.

Vorzugsweise ist im Bereich der mindestens zwei einander gegenüberliegenden Kanten im ersten Klebstoff je mindestens ein Verankerungselement eingesetzt.At least one anchoring element is preferably used in the region of the at least two opposite edges in the first adhesive.

Dadurch kann das erfindungsgemässe Isolierglas mit weiteren Strukturen, wie beispielsweise Stahlträger, verbunden werden. Da der erste Klebstoff über eine hohe Zugfestigkeit verfügt ist es mit dem erfindungsgemässen Isolierglas möglich, Verankerungselemente direkt und ohne Zuhilfenahme weiterer Komponenten am Isolierglas selbst zu befestigen.As a result, the insulating glass according to the invention can be connected to other structures, such as steel beams. Since the first adhesive has a high tensile strength, it is possible with the inventive insulating glass to fix anchoring elements directly and without the aid of other components on the insulating glass itself.

Vorzugsweise ist zwischen den mindestens zwei Glasscheiben und parallel zu diesen eine Folie aus einem Polymer aufgespannt, wobei die Folie zu den Glasscheiben je über mindestens einen Abstandhalter beabstandet ist.Preferably, a foil of a polymer is stretched between the at least two glass panes and parallel to them, the foil being spaced apart from the glass panes by at least one spacer each.

Auf diese Weise kann eine zusätzliche Wärmedämmungsschicht in das Isolierglas eingebracht werden, ohne dass das Isolierglas eine wesentliche Gewichtszunahme erfährt - wie dies beim Anordnen einer weiteren Glasscheibe im Isolierglas der Fall wäre. Dabei ist die Folie jeweils über einen Abstandhalter von den Glasscheiben beabstandet.In this way, an additional thermal insulation layer can be introduced into the insulating glass, without the insulating glass undergoes a significant increase in weight - as would be the case when arranging a further glass pane in the insulating glass. In this case, the film is spaced in each case via a spacer from the glass panes.

Bevorzugt bestehen die äussersten der mindestens zwei Glasscheiben aus einem Glaslaminat. Dadurch lässt sich der Widerstand des Isolierglases zusätzlich erhöhen.The outermost of the at least two glass panes preferably consist of a glass laminate. As a result, the resistance of the insulating glass can be additionally increased.

Aus der nachfolgenden Detailbeschreibung und der Gesamtheit der Patentansprüche ergeben sich weitere vorteilhafte Ausführungsformen und Merkmalskombinationen der Erfindung.From the following detailed description and the totality of the claims, further advantageous embodiments and feature combinations of the invention result.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Die zur Erläuterung des Ausführungsbeispiels verwendeten Zeichnungen zeigen:

Fig. 1
eine schematische Darstellung eines erfindungsgemässen Isolierglases;
Figs. 2a - 2c
Ausschnitte von erfindungsgemässen Isoliergläsern im Querschnitt;
Fig. 3
einen Ausschnitt einer weiteren Ausführungsform eines erfindungsgemässen Isolierglases im Querschnitt;
Fig. 4
eine weitere Ausführungsform eines erfindungsgemässen Isolierglases im Querschnitt.
The drawings used to explain the embodiment show:
Fig. 1
a schematic representation of an inventive insulating glass;
Figs. 2a - 2c
Cutouts of inventive insulating glass in cross section;
Fig. 3
a detail of another embodiment of an inventive insulating glass in cross section;
Fig. 4
a further embodiment of an inventive insulating glass in cross section.

Grundsätzlich sind in den Figuren gleiche Teile mit gleichen Bezugszeichen versehen.Basically, the same parts are provided with the same reference numerals in the figures.

Wege zur Ausführung der ErfindungWays to carry out the invention

Die Fig. 1 zeigt eine schematische Darstellung eines erfindungsgemässen Isolierglases 1. Das Isolierglas 1 umfasst zwei Glasscheiben, welche durch einen Abstandhalter 12 zueinander beabstandet gehalten werden. Der Abstandhalter 12 in einem ersten Bereich 8 und einem zweiten Bereich 9, welche an eine erste Kante 4 beziehungsweise an eine der ersten Kante 4 gegenüberliegenden Kante 5 angrenzen, in einem ersten Abstand D1 angeordnet. In einem dritten Bereich 10 und einem vierten Bereich 11 ist der Abstandhalter 12 in einem zweiten Abstand D2 zu einer dritten Kante 6 beziehungsweise zu einer vierten Kante 7 angeordnet. Der erste Abstand D1 ist grösser als der zweite Abstand D2.The Fig. 1 shows a schematic representation of an inventive insulating glass 1. The insulating glass 1 comprises two glass sheets, which are held by a spacer 12 spaced from each other. The spacer 12 in a first region 8 and a second region 9, which adjoin a first edge 4 or an edge 4 opposite the first edge 4, are arranged at a first distance D1. In a third region 10 and a fourth region 11, the spacer 12 is arranged at a second distance D2 to form a third edge 6 or a fourth edge 7. The first distance D1 is greater than the second distance D2.

Zwischen den beiden Glasscheiben ist im ersten Bereich 8 und im zweiten Bereich 9 zwischen der ersten Kante 4 beziehungsweise der zweiten Kante 5 und dem Abstandhalter 12 ein erster Klebstoff mit einer Steifigkeit von mindestens 50 N/mm2 im ausgehärteten Zustand eingebracht. Im dritten Bereich 10 und im vierten Bereich 11 ist zwischen der dritten Kante 6 beziehungsweise der vierten Kante 7 und dem Abstandhalter 12 ein zweiter Klebstoff eingebracht, welcher im ausgehärteten Zustand eine geringere Steifigkeit aufweist als der erste Klebstoff. Der Abstandhalter 12 sowie der erste Klebstoff beziehungsweise der zweite Klebstoff bilden den sog. Randverbund des Isolierglases 1.Between the two glass panes is in the first region 8 and in the second region 9 between the first edge 4 and the second edge 5 and the spacer 12 introduced a first adhesive with a rigidity of at least 50 N / mm 2 in the cured state. In the third region 10 and in the fourth region 11, a second adhesive is introduced between the third edge 6 or the fourth edge 7 and the spacer 12, which in the cured state has a lower rigidity than the first adhesive. The spacer 12 and the first adhesive or the second adhesive form the so-called. Edge compound of the insulating glass first

Die Figs. 2a bis 2c zeigen Ausschnitte von erfindungsgemässen Isoliergläsern im Querschnitt. In Fig. 2a ist ein Querschnitt durch den ersten Bereich 8 gezeigt. Der Abstandhalter 12 ist im ersten Abstand D1 von der ersten Kante 4 zwischen der ersten Glasscheibe 2 und der zweiten Glasscheibe 3 angeordnet. Durch den Abstandhalter 12 bildet sich im Innenbereich des Isolierglases ein Zwischenraum 13, der beispielsweise mit einem Inertgas gefüllt werden kann. Der Abstandhalter 12 ist aus darstellerischen Gründen in Form eines Vierecks gezeigt. Einem Fachmann auf dem Gebiet dürfte jedoch klar sein, dass der Abstandhalter 12 in irgendeiner geeigneten Form vorliegen kann. Aus dem Stand der Technik sind vielfältige Formen und Ausgestaltungen für Abstandhalter bekannt. Ferner wird vorzugsweise zwischen dem Abstandhalter 12 und den Glasscheiben 2, 3 ein Kleb- und Dichtstoff wie Polyisobutyl angeordnet sein, wie dies aus dem Stand der Technik bekannt ist. Im Zwischenraum zwischen den beiden Glasscheiben 2, 3 sowie der ersten Kante 4 und dem Abstandhalter 12 ist der erste Klebstoff eingebracht. Ein Fachmann versteht, dass der Querschnitt durch den zweiten Bereich 9, der an der der ersten Kante 4 gegenüberliegenden zweiten Kante 5 angrenzt, identisch mit dem hier gezeigten Querschnitt ist.The Figs. 2a to 2c show sections of inventive insulating glass in cross section. In Fig. 2a a cross-section through the first region 8 is shown. The spacer 12 is arranged at the first distance D1 from the first edge 4 between the first glass pane 2 and the second glass pane 3. By the spacer 12 is formed in the inner region of the insulating glass, a gap 13 which can be filled, for example, with an inert gas. The spacer 12 is shown for illustrative reasons in the form of a quadrangle. However, one skilled in the art should appreciate that the spacer 12 may be in any suitable form. Various forms and configurations for spacers are known from the prior art. Further, an adhesive and sealant such as polyisobutyl will preferably be arranged between the spacer 12 and the glass sheets 2, 3, as is known from the prior art. In the space between the two glass sheets 2, 3 and the first edge 4 and the spacer 12, the first adhesive is introduced. A person skilled in the art will understand that the cross section through the second region 9, which adjoins the second edge 5 opposite the first edge 4, is identical to the cross section shown here.

Die Fig. 2b zeigt einen Querschnitt durch den dritten Bereich 10. Der Abstandhalter 12 ist in einem zweiten Abstand D2 von der dritten Kante 6 beabstandet zwischen den beiden Glasscheiben 2, 3 angeordnet. Im Zwischenraum zwischen den beiden Glasscheiben 2, 3 sowie der dritten Kante 4 und dem Abstandhalter 12 ist der zweite Klebstoff eingebracht. Ein Fachmann versteht, dass der Querschnitt durch den vierten Bereich 11 identisch mit dem hier gezeigten Querschnitt ist.The Fig. 2b shows a cross section through the third region 10. The spacer 12 is at a second distance D2 spaced from the third edge 6 between the two glass panes 2, 3 are arranged. In the space between the two glass sheets 2, 3 and the third edge 4 and the spacer 12, the second adhesive is introduced. A person skilled in the art will understand that the cross section through the fourth region 11 is identical to the cross section shown here.

Die Fig. 2c stellt eine weitere Ausführungsform eines Isolierglases 1 gemäss der vorliegenden Erfindung dar. Hierbei ist zwischen der ersten Kante 5 und dem Abstandhalter 12 in einem ersten Teilbereich 14 der erste Klebstoff zwischen den beiden Glasscheiben 2, 3 eingebracht. In einem zweiten Teilbereich 15 ist ein weiterer Klebstoff oder ein Dichtstoff eingebracht. Dadurch lassen sich die Eigenschaften eines Randverbundes je nach Einsatzort und -zweck des Isolierglases verändern.The Fig. 2c represents a further embodiment of an insulating glass 1 according to the present invention. Here, between the first edge 5 and the Spacer 12 in a first portion 14 of the first adhesive between the two glass panes 2, 3 introduced. In a second portion 15, a further adhesive or a sealant is introduced. As a result, the properties of a marginal composite can be changed depending on the location and purpose of the insulating glass.

Die Fig. 3 zeigt einen Ausschnitt einer weiteren Ausführungsform eines Isolierglases 1 im Querschnitt. Bei dieser Ausführungsform ist im ersten Bereich 8 ein Verankerungselement 16 im zweiten Klebstoff eingesetzt. Über das Verankerungselement 16 kann das Isolierglas 1 beispielsweise mit weiteren Elementen verbunden werden.The Fig. 3 shows a section of another embodiment of an insulating glass 1 in cross section. In this embodiment, in the first region 8, an anchoring element 16 is inserted in the second adhesive. About the anchoring element 16, the insulating glass 1 can be connected, for example, with other elements.

In der Fig. 4 ist eine weitere Ausführungsform eines Isolierglases 1 dargestellt. Bei dieser Ausführungsform ist zwischen den beiden Glasscheiben 2, 3 eine Folie 17 angeordnet, welche durch je einen Abstandhalter 12 von den Glasscheiben 2, 3 beabstandet ist. Die Folie 12 ist dabei im ersten Klebstoff eingebettet. Die Folie 17 bildet eine zusätzliche Wärmebarriere zwischen den beiden Glasscheiben 2, 3, was die Wärmedämmung des Isolierglases 1 erhöht.In the Fig. 4 another embodiment of an insulating glass 1 is shown. In this embodiment, a film 17 is disposed between the two glass sheets 2, 3, which is spaced by a respective spacer 12 from the glass sheets 2, 3. The film 12 is embedded in the first adhesive. The film 17 forms an additional thermal barrier between the two glass panes 2, 3, which increases the thermal insulation of the insulating glass 1.

Claims (8)

  1. Insulating glass having at least two mutually spaced apart glass panes (2, 3), comprising at least one peripheral composite that is disposed in a region (8, 9, 10, 11) of edges (4, 5, 6, 7) of the glass panes (2, 3) so as to be between said glass panes (2, 3), said peripheral composite being composed of a spacer (12) as well as at least one adhesive, wherein the peripheral composite at least in the region (8, 9) of two mutually opposite edges (4, 5) comprises a first adhesive which in the cured state has a rigidity of at least 50 N/mm2, preferably of at least 100 N/mm2, characterized in that the peripheral composite in the regions (10, 11) of the further edges (6, 7) of the glass panes (2, 3) comprises at least one second adhesive, wherein the second adhesive in the cured state has lower rigidity than the first adhesive.
  2. Insulating glass according to Claim 1, characterized in that the first adhesive has a short-term strength for dissipating wind loads of at least 5 N/mm2, preferably of at least 10 N/mm2.
  3. Insulating glass according to one of Claims 1 or 2, characterized in that the first adhesive in the region (8, 9) of the at least two mutually opposite edges (4, 5) is applied on a width (D1) of 20 mm to 200 mm, in particular of 80 mm to 120 mm from the edge (4, 5) in the direction towards the centre of the glass panes (2, 3).
  4. Insulating glass according to one of Claims 1 to 3, characterized in that the peripheral composite comprises the first adhesive in the region (8, 9) of those mutually opposite edges (4, 5) on which the insulating glass (1) bears in the intended use of said insulating glass (1).
  5. Insulating glass according to one of Claims 1 to 4, characterized in that the at least one second adhesive in the regions (10, 11) of the further edges (6, 7) is applied on a smaller width (D2) than the first adhesive in the regions (8, 9) of the two mutually opposite edges (4, 5).
  6. Insulating glass according to one of Claims 1 to 5, characterized in that at least one anchoring element (16) is in each case inserted in the first adhesive in the regions (8, 9) of the at least two mutually opposite edges (4, 5).
  7. Insulating glass according to one of Claims 1 to 6, characterized in that a film from a polymer is stretch-fitted between the at least two glass panes (2, 3) so as to be parallel to said two glass panes (2, 3), wherein the film is in each case spaced apart from the glass panes (2, 3) by way of at least one spacer (12).
  8. Insulating glass according to one of Claims 1 to 7, characterized in that the outermost of the at least two glass panes (2, 3) are composed of a glass laminate.
EP16152578.7A 2015-01-29 2016-01-25 Insulating glass with load bearing properties Active EP3051050B1 (en)

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CH710658A1 (en) 2016-07-29
US10184247B2 (en) 2019-01-22
CA2918653A1 (en) 2016-07-29
EP3051050A1 (en) 2016-08-03
CA2918653C (en) 2023-10-17
US20160222652A1 (en) 2016-08-04

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