EP0037993B1 - Insulating glass with internal pane, external pane and spacer - Google Patents

Insulating glass with internal pane, external pane and spacer Download PDF

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Publication number
EP0037993B1
EP0037993B1 EP81102551A EP81102551A EP0037993B1 EP 0037993 B1 EP0037993 B1 EP 0037993B1 EP 81102551 A EP81102551 A EP 81102551A EP 81102551 A EP81102551 A EP 81102551A EP 0037993 B1 EP0037993 B1 EP 0037993B1
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EP
European Patent Office
Prior art keywords
pane
spring
enclosure assembly
insulating glass
glass unit
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.)
Expired
Application number
EP81102551A
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German (de)
French (fr)
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EP0037993A1 (en
Inventor
Paul Dr. Derner
Dietrich Dr. Mertin
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BFG Glassgroup GIE
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BFG Glassgroup GIE
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Priority to AT81102551T priority Critical patent/ATE11803T1/en
Publication of EP0037993A1 publication Critical patent/EP0037993A1/en
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Publication of EP0037993B1 publication Critical patent/EP0037993B1/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
    • E06B3/66—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
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • 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
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6707—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased acoustical insulation
    • 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
    • E06B2003/6639—Section members positioned at the edges of the glazing unit sinuous

Definitions

  • the path corresponds to movements of the panes and / or the pane edge against one another in the direction perpendicular to the pane surface.
  • the force is the resistance that the moving disk or disks experience during this movement towards and away from one another through the connection unit.
  • the movement takes place under the influence of pressure changes, e.g. B. by varying the atmospheric conditions or a sound field.
  • Both the inner pane and the outer pane or one of the two can also be designed as so-called laminated glass panes or insulating glass panes, which in turn are insulating glass units.
  • the disks are provided all around in the manner described with a resilient connection unit. Both panes of the insulating glass unit can also be arranged accordingly. The singular form is used only for reasons of simplicity.
  • the resilient connection unit consists of rubber profile strips, which are arranged on both sides of a rigid metal profile.
  • a spring characteristic curve can be assigned to such a unit, and the working point of the system consisting of the connection unit and the assigned plate moves on the spring characteristic line when pressure changes act on the plate.
  • comparatively large opposing forces either occur after a small displacement at the edge of the pane, or larger displacements are not opposed to sufficient resistance to ensure the cohesion of the insulating glass unit.
  • the spring characteristic is too steep in the area of the working point to allow improvements of more than approx. 2 dB, which are due to the damping rather than the elastic properties of the edge construction.
  • the situation is accordingly in a similar embodiment (DE-A-2531 243), in which the entire spacer frame is designed as a strip made of an elastomeric material, such as rubber, and has grooves for receiving the glass panes.
  • the invention has for its object to improve a generic insulating glass unit in terms of aging resistance and / or sound insulation by changing and by functional improvement of the connection unit.
  • the invention teaches that the resilient connection unit has such a spring characteristic that when the disc is deflected by up to about 5%, based on the disc spacing, the working point moves on a substantially horizontal spring characteristic section, so that the spring force then begins to rise steeply, and that at about 12% deflection, further deformation of the connection unit is hardly possible.
  • the invention is based on the knowledge that it is important for an increase in sound insulation in generic insulating glass units to oppose small movements of the panes against each other as little resistance as possible and large against a large resistance.
  • the inner pane and outer pane of the insulating glass unit are coupled to one another at the edge via a resilient connection unit with a non-linear spring characteristic during the movement described.
  • the resilient connection unit opposes small deflections to a negligible resistance in comparison to the bending stiffness of the disks.
  • the spring force increases steeply with larger deflections. In practice, this increase is initially started slowly with a deflection of about 5%, based on the distance between the panes. At the latest with a 12% deflection within the scope of the described movement of the two panes against one another, forces such as in normal insulating glass constructions should be necessary for a deformation.
  • Embodiments which are characterized in that the force exerted by the edge construction on the pane at 5% displacement, based on the pane spacing, make up less than 15%, preferably less than 5% of the force which occurs at 10% displacement . Particularly high sound insulation is achieved if the marginal force should be less than 1% of the force that occurs at 10% displacement with a 5% total displacement.
  • Suitable spring elements are known in various embodiments. For example, you can use pre-stressed Work leaf springs or disc springs or also with soft elastic rubber-elastic fabrics. The use of open-pore, soft-elastic material is particularly recommended, since the shape of the spring characteristic curve, which is essential for the invention, can be easily adjusted with such a material.
  • connection unit consists of two leaf spring strips arched in cross section, with their convex side on the between the spring strips arranged disc are supported, and that the leaf spring strips on the other hand rest on the receiving profile or on the spacer frame.
  • connection unit consists of two flexible spring profiles that are supported on the disc arranged between the spring profiles, and that on the other hand on the mounting profile or on the spacer frame supported spring profiles together with the washer have a low-friction block, which allows the described movement of the washers against one another as far as possible without disruptive frictional influences.
  • connection unit consisting of two flexible spring profiles
  • these can also be arranged in a mounting profile with the interposition of a connecting web guided to the spacer frame, the mounting profile being applied on the one hand to the assigned washer and on the other hand with the connecting web on the spacer frame.
  • connection unit in an insulating glass unit according to the invention, the described modification and functional improvement of the connection unit alone considerably improve the aging resistance compared to the prior art, and secondly large pane spacings, as are desirable for sound insulation, without danger of the broken window can be realized, and in addition a further increase in sound insulation is achieved, which can be 5 dB.
  • pane spacing which should be greater the smaller the total glass thickness, and filling the interspaces between panes with gases or gas mixtures in which the speed of sound is at least 10% less than in air or at least 20% larger than in air.
  • the pane spacing should be 50 mm for a total glass thickness of 10 mm, 25 mm for 15 mm and> 10 mm for 20 mm.
  • Suitable filling gases are e.g. B. sulfur hexafluoride and its mixtures with air for low speeds of sound and helium for high speeds of sound.
  • the spring characteristic curve FK has an essentially horizontal spring characteristic section FKA in the region of its center, and the working point A is set up on this.
  • connection unit consists of two leaf spring strips 5, 6 which are curved in cross section and which are supported with their convex side on the disk 2 arranged between the leaf spring strips 5, 6.
  • the leaf spring strips 5, 6, on the other hand, rest on the receiving profile 4 or on the spacer frame 3.
  • FIG. 5 is readily understandable with the explanation of FIG. 2. - It can be seen that the so-called receiving profile 4 can also be formed from a window frame 11 and a glass retaining strip 12. The same applies analogously to the other embodiments.
  • the characteristic curves of the individual springs according to a) the example according to FIG. 2 and b) according to FIG. 3 are recorded in FIG. 6.
  • the forces are vectorially plotted against the path.
  • the vector is defined as positive if it points away from the disc 1 and as negative if it runs from the disc 2 in the direction of the disc 1.
  • the path s is positive if the disc 2 shifts to disc 1. It can be seen that in case a) considerable forces act on the individual spring at the working point, but that these cancel each other out. In case b) the preload is low at the working point. It is within the scope of the invention to dispense with them entirely.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

An insulating window structure has an inner glass pane spaced from an outer glass pane by a spacer frame extending around the panes so that the panes define between them, within the frame, a gas-filled space. According to the invention, at least one of the panes is anchored to the frame by a resilient connecting unit having a spring characteristic (restoring force plotted along the ordinate versus displacement plotted along the abscissa) which has a substantially horizontal portion at the center of this characteristic and at which the working point of the resilient unit is provided.

Description

Die Erfindung bezieht sich gattungsgemäß auf eine Isolierglaseinheit mit Innenscheibe, Außenscheibe, umlaufendem Abstandsrahmen und Gasfüllung im Zwischenraum, wobei zumindest eine der Scheiben an zumindest einem Rand mit Hilfe eines federnden Anschlußaggregates unter Schallbeaufschlagung schwingend verlagerbar gehalten ist, welches Anschlußaggregat einer kleinen Bewegung der Scheiben gegeneinander einen geringen, einer großen Bewegung der Scheiben gegeneinander jedoch einen sehr viel größeren Widerstand entgegensetzt. Das bedeutet, daß die Federkennlinie des Aggregates für die beiden Bewegungen soweit unterschiedlich steil ist. - Federkennlinie bedeutet dabei die graphische Darstellung einer Federcharakteristik in einem orthogonalen Koordinatensystem mit dem Weg als Abszisse und dem Betrag der Federkraft als Ordinate. Dem Weg entsprechen dabei Bewegungen der Scheiben und/oder des Scheibenrandes gegeneinander in der Richtung senkrecht zur Scheibenoberfläche. Die Kraft ist der Widerstand, den die bewegte Scheibe bzw. die bewegten Scheiben bei dieser Bewegung aufeinander zu und voneinander weg durch das Anschlußaggregat erfahren. Die Bewegung erfolgt unter dem Einfluß von Druckänderungen, z. B. durch Variation der atmosphärischen Bedingungen bzw. ein Schallfeld. Sowohl die Innenscheibe als auch die Außenscheibe oder eine von beiden können auch als sogenannte Verbundglasscheiben oder Isolierglasscheiben ausgeführt sein, die ihrerseits wieder Isolierglaseinheiten sind. Im allgemeinen sind die Scheiben umlaufend in der beschriebenen Weise mit einem federnden Anschlußaggregat versehen. Auch können beide Scheiben der Isolierglaseinheit entsprechend angeordnet sein. Nur aus Gründen der terminologischen Einfachheit wird insoweit im Singular formuliert.The invention relates generically to an insulating glass unit with an inner pane, outer pane, circumferential spacing frame and gas filling in the intermediate space, at least one of the panes being held so as to be displaceably displaceable on at least one edge with the aid of a resilient connection unit under the action of sound, which connection unit unites a small movement of the panes against one another small, large movement of the discs against each other, however, offers a much greater resistance. This means that the spring characteristic of the unit is so steep for the two movements. - Spring characteristic curve means the graphic representation of a spring characteristic in an orthogonal coordinate system with the path as the abscissa and the magnitude of the spring force as the ordinate. The path corresponds to movements of the panes and / or the pane edge against one another in the direction perpendicular to the pane surface. The force is the resistance that the moving disk or disks experience during this movement towards and away from one another through the connection unit. The movement takes place under the influence of pressure changes, e.g. B. by varying the atmospheric conditions or a sound field. Both the inner pane and the outer pane or one of the two can also be designed as so-called laminated glass panes or insulating glass panes, which in turn are insulating glass units. In general, the disks are provided all around in the manner described with a resilient connection unit. Both panes of the insulating glass unit can also be arranged accordingly. The singular form is used only for reasons of simplicity.

Bei den bekannten, gattungsgemäßen Isolierglaseinheiten (DE-A-2526438, DE-U-6750163) besteht das federnde Anschlußaggregat aus Gummiprofilleisten, die beidseits eines demgegenüber starren Metallprofils angeordnet sind. Einem solchen Aggregat kann eine Federkennlinie zugeordnet werden, und auf der Federkennlinie bewegt sich der Arbeitspunkt des Systems aus Anschlußaggregat und zugeordneter Scheibe, wenn Druckänderungen auf die Scheibe einwirken. Im Rahmen der bekannten Maßnahmen treten jedoch am Scheibenrand entweder bereits nach kleiner Verlagerung vergleichsweise große Gegenkräfte auf, oder es wird größeren Verlagerungen kein ausreichender Widerstand entgegengesetzt, um den Zusammenhalt der Isolierglaseinheit zu gewährleisten. - Insbesondere kommt im Rahmen der bekannten Maßnahmen der Federkennlinie keine für die Schalldämmung wesentliche Bedeutung zu. Die Federkennlinie ist in der Praxis im Bereich des Arbeitspunktes zu steil, um Verbesserungen um mehr als ca. 2 dB zuzulassen, die noch dazu eher den dämpfenden als den elastischen Eigenschaften der Randkonstruktion zuzuschreiben sind. Entsprechend liegen die Verhältnisse bei einer ähnlichen Ausführungsform (DE-A-2531 243), bei der der gesamte Abstandsrahmen als Leiste aus einem elastomeren Werkstoff, wie Gummi, ausgeführt ist und Nuten für die Aufnahme der Glasscheiben aufweist.In the known, generic insulating glass units (DE-A-2526438, DE-U-6750163), the resilient connection unit consists of rubber profile strips, which are arranged on both sides of a rigid metal profile. A spring characteristic curve can be assigned to such a unit, and the working point of the system consisting of the connection unit and the assigned plate moves on the spring characteristic line when pressure changes act on the plate. In the context of the known measures, however, comparatively large opposing forces either occur after a small displacement at the edge of the pane, or larger displacements are not opposed to sufficient resistance to ensure the cohesion of the insulating glass unit. - In particular, within the scope of the known measures of the spring characteristic, there is no essential importance for sound insulation. In practice, the spring characteristic is too steep in the area of the working point to allow improvements of more than approx. 2 dB, which are due to the damping rather than the elastic properties of the edge construction. The situation is accordingly in a similar embodiment (DE-A-2531 243), in which the entire spacer frame is designed as a strip made of an elastomeric material, such as rubber, and has grooves for receiving the glass panes.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, eine gattungsgemäße Isolierglaseinheit bezüglich der Alterungsbeständigkeit und/oder der Schalldämmung durch Veränderung und durch funktionelle Verbesserung des Anschlußaggregates erheblich zu verbessern.In contrast, the invention has for its object to improve a generic insulating glass unit in terms of aging resistance and / or sound insulation by changing and by functional improvement of the connection unit.

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß das federnde Anschlußaggregat eine derartige Federkennlinie hat, daß bei einer Auslenkung der Scheibe von bis zu etwa 5%, bezogen auf den Scheibenabstand, der Arbeitspunkt auf einem im wesentlichen horizontalen Federkennlinienabschnitt wandert, daß sodann die Federkraft beginnt, steil anzusteigen, und daß bei etwa 12% Auslenkung eine weitere Deformation des Anschlußaggregates kaum mehr möglich ist. - Die Erfindung geht von der Erkenntnis aus, daß es für eine Erhöhung der Schalldämmung bei gattungsgemäßen Isolierglaseinheiten darauf ankommt, kleinen Bewegungen der Scheiben gegeneinander einen möglichst geringen Widerstand und großen einen großen Widerstand entgegenzusetzen.To achieve this object, the invention teaches that the resilient connection unit has such a spring characteristic that when the disc is deflected by up to about 5%, based on the disc spacing, the working point moves on a substantially horizontal spring characteristic section, so that the spring force then begins to rise steeply, and that at about 12% deflection, further deformation of the connection unit is hardly possible. - The invention is based on the knowledge that it is important for an increase in sound insulation in generic insulating glass units to oppose small movements of the panes against each other as little resistance as possible and large against a large resistance.

Für die Erfindung ist im übrigen wesentlich, daß Innenscheibe und Außenscheibe der Isolierglaseinheit am Rand über ein federndes Anschlußaggregat mit nichtlinearer Federcharakteristik bei der beschriebenen Bewegung gegeneinander aneinander angekoppelt sind. Wegen der beschriebenen Einrichtung der Federkennlinie setzt das federnde Anschlußaggregat kleinen Auslenkungen einen im Vergleich zur Biegesteifigkeit der Scheiben vernachlässigbaren Widerstand entgegen. Bei größeren Auslenkungen steigt die Federkraft steil an. In der Praxis läßt man diesen Anstieg bei einer Auslenkung von etwa 5%, bezogen auf den Scheibenabstand, zunächst langsam beginnen. Spätestens bei 12% Auslenkung im Rahmen der beschriebenen Bewegung der beiden Scheiben gegeneinander sollen für eine Deformation Kräfte wie bei normalen Isolierglaskonstruktionen notwendig sein. Bewährt haben sich Ausführungsformen, die dadurch gekennzeichnet sind, daß die von der Randkonstruktion auf die Scheibe ausgeübte Kraft bei 5% Verlagerung, bezogen auf den Scheibenabstand, weniger als 15%, vorzugsweise weniger als 5% der Kraft ausmacht, die bei 10% Verlagerung auftritt. Besonders hohe Schalldämmung erreicht man, wenn bei 5% Gesamtverlagerung die Randkraft weniger als 1% der Kraft ausmachen sollte, die bei 10% Verlagerung auftritt. - Geeignete Federelemente sind in verschiedenen Ausführungsformen bekannt. Zum Beispiel kann man mit druckvorgespannter Blattfeder oder Tellerfedern oder auch mit weichelastisch eingestellten gummielastischen Stoffen arbeiten. Besonders empfehlenswert ist die Verwendung von offenporigem, weichelastischem Material, da mit einem solchen die für die Erfindung wesentliche Form der Federkennlinie leicht eingestellt werden kann.It is also essential for the invention that the inner pane and outer pane of the insulating glass unit are coupled to one another at the edge via a resilient connection unit with a non-linear spring characteristic during the movement described. Because of the described setting of the spring characteristic, the resilient connection unit opposes small deflections to a negligible resistance in comparison to the bending stiffness of the disks. The spring force increases steeply with larger deflections. In practice, this increase is initially started slowly with a deflection of about 5%, based on the distance between the panes. At the latest with a 12% deflection within the scope of the described movement of the two panes against one another, forces such as in normal insulating glass constructions should be necessary for a deformation. Embodiments which are characterized in that the force exerted by the edge construction on the pane at 5% displacement, based on the pane spacing, make up less than 15%, preferably less than 5% of the force which occurs at 10% displacement . Particularly high sound insulation is achieved if the marginal force should be less than 1% of the force that occurs at 10% displacement with a 5% total displacement. - Suitable spring elements are known in various embodiments. For example, you can use pre-stressed Work leaf springs or disc springs or also with soft elastic rubber-elastic fabrics. The use of open-pore, soft-elastic material is particularly recommended, since the shape of the spring characteristic curve, which is essential for the invention, can be easily adjusted with such a material.

Eine bevorzugte Ausführungsform der Erfindung, bei der der Abstandsrahmen zusammen mit dem Rand der Glasscheibe in einem oder an einem Aufnahmeprofil gehalten ist, ist dadurch gekennzeichnet, daß das Anschlußaggregat aus zwei im Querschnitt gewölbten Blattfederleisten besteht, die mit ihrer konvexen Seite an der zwischen den Federleisten angeordneten Scheibe abgestützt sind, und daß die Blattfederleisten andererseits an dem Aufnahmeprofil bzw. an dem Abstandsrahmen anliegen. In der Ausführungsform mit weichelastischem Anschlußaggregat und Aufnahmeprofil für das Anschlußaggregat mit Scheibe lehrt die Erfindung im Gegensatz dazu, daß das Anschlußaggregat aus zwei weichelastischen Federprofilen besteht, die an der zwischen den Federprofilen angeordneten Scheibe abgestützt sind, und daß die andererseits am Aufnahmeprofil bzw. am Abstandsrahmen abgestützten Federprofile zusammen mit der Scheibe eine reibungsarme Unterklotzung aufweisen, die die beschriebene Bewegung der Scheiben gegeneinander möglichst ohne störende Reibungseinflüsse zuläßt. In der Ausführungsform mit weichelastischem Anschlußaggregat aus zwei weichelastischen Federprofilen können diese aber auch unter Zwischenschaltung eines zum Abstandsrahmen geführten Anschlußsteges in einem Aufnahmeprofil angeordnet sein, wobei das Aufnahmeprofil einerseits an die zugeordnete Scheibe, andererseits mit dem Anschlußsteg an dem Abstandsrahmen angelegt ist. Soweit erforderlich wird man im Rahmen der Erfindung das Anschlußaggregat mit Dichtungsanordnungen versehen, z. B. in Form von Weichdichtungen zwischen Blattfederleisten und Glasscheiben bzw. in Form von Dichtungsfolienstreifen, welche die weichelastischen Federprofile überbrücken. Infolge der Vorspannung der Blattfederleisten kann man auf die Weichdichtungen einen erheblichen Druck ausüben, der ausreichende Abdichtung sicherstellt. Die Beweglichkeit ist trotzdem gewährleistet, weil sich die Druckkräfte der Blattfederleisten in einem größeren Bereich nahezu kompensieren. Im Rahmen der Erfindung liegt es, die federnden Anschlußaggregate in an sich bekannter Weise zugleich als Dämpfungselemente auszubilden oder mit Dämpfungselementen zu kombinieren. Es ist auch möglich, den Rand der Scheibe mit nur einer Blattfederleiste zu verkleben, wenn diese durch eine Zugfeder vorgespannt wird.A preferred embodiment of the invention, in which the spacer frame is held in one or on a receiving profile together with the edge of the glass pane, is characterized in that the connection unit consists of two leaf spring strips arched in cross section, with their convex side on the between the spring strips arranged disc are supported, and that the leaf spring strips on the other hand rest on the receiving profile or on the spacer frame. In the embodiment with a flexible connection unit and mounting profile for the connection unit with washer, the invention, in contrast, teaches that the connection unit consists of two flexible spring profiles that are supported on the disc arranged between the spring profiles, and that on the other hand on the mounting profile or on the spacer frame supported spring profiles together with the washer have a low-friction block, which allows the described movement of the washers against one another as far as possible without disruptive frictional influences. In the embodiment with a flexible connection unit consisting of two flexible spring profiles, these can also be arranged in a mounting profile with the interposition of a connecting web guided to the spacer frame, the mounting profile being applied on the one hand to the assigned washer and on the other hand with the connecting web on the spacer frame. If necessary, the connection unit will be provided with sealing arrangements, for. B. in the form of soft seals between leaf spring slats and glass panes or in the form of sealing film strips which bridge the soft elastic spring profiles. As a result of the prestressing of the leaf spring slats, considerable pressure can be exerted on the soft seals, which ensures adequate sealing. The mobility is still guaranteed because the pressure forces of the leaf spring slats almost compensate in a larger area. It is within the scope of the invention to design the resilient connection units in a manner known per se as damping elements or to combine them with damping elements. It is also possible to glue the edge of the pane with only one leaf spring strip if this is preloaded by a tension spring.

Die erreichten Vorteile sind darin zu sehen, daß bei einer erfindungsgemäßen Isolierglaseinheit allein durch die beschriebene Veränderung und funktionelle Verbesserung des Anschlußaggregates einerseits die Alterungsbeständigkeit im Vergleich zum Stand der Technik erheblich verbessert wird, andererseits große Scheibenabstände, wie sie für die Schalldämmung wünschenswert sind, ohne Gefahr des Scheibenbruchs realisiert werden können, und darüber hinaus noch eine weitere Erhöhung der Schalldämmung erreicht wird, die 5 dB betragen kann.The advantages achieved can be seen in the fact that in an insulating glass unit according to the invention, the described modification and functional improvement of the connection unit alone considerably improve the aging resistance compared to the prior art, and secondly large pane spacings, as are desirable for sound insulation, without danger of the broken window can be realized, and in addition a further increase in sound insulation is achieved, which can be 5 dB.

Bei Schalldämmscheiben erreicht man eine besonders gute Wirkung, wenn man die erfindungsgemäße Randkonstruktion mit Scheibenabständen kombiniert, die um so größer sein sollten, je kleiner die Gesamtglasdicke ist, und die Scheibenzwischenräume mit Gasen bzw. Gasmischungen füllt, in denen die Schallgeschwindigkeit mindestens 10% kleiner als in Luft oder mindestens 20% größer ist als in der Luft. Der Scheibenabstand sollte bei 10 mm Gesamtglasdicke k 50 mm, bei 15 mm S: 25 mm und bei 20 mm > 10 mm sein. Geeignete Füllgase sind z. B. Schwefelhexafluorid und dessen Mischungen mit Luft für niedrige Schallgeschwindigkeiten und Helium für hohe Schallgeschwindigkeiten.In the case of soundproofing panes, a particularly good effect is achieved if the edge construction according to the invention is combined with pane spacing, which should be greater the smaller the total glass thickness, and filling the interspaces between panes with gases or gas mixtures in which the speed of sound is at least 10% less than in air or at least 20% larger than in air. The pane spacing should be 50 mm for a total glass thickness of 10 mm, 25 mm for 15 mm and> 10 mm for 20 mm. Suitable filling gases are e.g. B. sulfur hexafluoride and its mixtures with air for low speeds of sound and helium for high speeds of sound.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigt in schematischer Darstellung

  • Fig. 1 Federkennlinien einer erfindungsgemäßen Isolierglaseinheit,
  • Fig. 2 einen Ausschnitt aus einem Vertikalschnitt durch eine erfindungsgemäße Isolierglaseinheit,
  • Fig. 3 entsprechend der Fig. 1 eine andere Ausführungsform einer erfindungsgemäßen Isolierglaseinheit und
  • Fig. 4 eine weitere Ausführungsform,
  • Fig. 5 den Gegenstand nach Fig. 2 in anderer konstruktiver Gestaltung,
  • Fig. Federkennlinien der Einzelfedern bei Ausführung gemäß a) Fig. 2 und b) Fig. 3.
In the following, the invention will be explained in more detail with reference to a drawing showing only one embodiment. It shows in a schematic representation
  • 1 spring characteristics of an insulating glass unit according to the invention,
  • 2 shows a detail from a vertical section through an insulating glass unit according to the invention,
  • Fig. 3 corresponding to FIG. 1, another embodiment of an insulating glass unit according to the invention and
  • 4 shows a further embodiment,
  • 5 shows the object according to FIG. 2 in a different structural design,
  • Spring characteristic curves of the individual springs in the embodiment according to a) FIG. 2 and b) FIG. 3.

Die in Fig. 1 dargestellte Federkennlinie FK ist in einem rechtwinkligen Koordinatensystem dargestellt worden. Als Abszisse ist der Weg s, als Ordinate ist der Betrag der Kraft P aufgetragen. Der Weg s entspricht den Bewegungen einer Scheibe 1 bzw. des Scheibenrandes einer Isolierglaseinheit in bezug auf die andere Scheibe 2. Man erreicht, daß bei kleinen Bewegungen der Scheiben 1, 2 gegeneinander ein extrem geringer Widerstand, bei großen Bewegungen gegeneinander jedoch ein sehr viel größerer Widerstand zu überwinden ist. Die Auslegung ist im allgemeinen so getroffen, daß bei Auslenkungen, die etwa 8% des Scheibenabstandes ausmachen, die Federkraft P steil ansteigt, und zwar so, daß bei 12% Auslenkung eine Deformation kaum mehr möglich ist. In diesem Sinne versteht sich die Lehre der Erfindung, wonach bei einer erfindungsgemäßen Isolierglaseinheit die Federkennlinie FK im Bereich ihrer Mitte einen im wesentlichen horizontalen Federkennlinienabschnitt FKA aufweist, und auf diesem der Arbeitspunkt A eingerichtet ist.The spring characteristic curve FK shown in FIG. 1 has been shown in a right-angled coordinate system. The path s is plotted as the abscissa, and the magnitude of the force P is plotted as the ordinate. The path s corresponds to the movements of a pane 1 or the pane edge of an insulating glass unit with respect to the other pane 2. It is achieved that with small movements of the panes 1, 2 against each other an extremely low resistance, but with large movements against each other a much larger one Resistance has to be overcome. The design is generally made such that the spring force P rises steeply in the case of deflections which make up approximately 8% of the distance between the panes, and in such a way that deformation is hardly possible at a deflection of 12%. The teaching of the invention is understood in this sense, according to which, in the case of an insulating glass unit according to the invention, the spring characteristic curve FK has an essentially horizontal spring characteristic section FKA in the region of its center, and the working point A is set up on this.

Im einzelnen läßt sich diese Lehre auf verschiedene Weise verwirklichen. Bei der Ausführungsform nach Fig. 2 ist der Abstandsrahmen 3 zusammen mit dem Rand der Scheibe 1 in einem oder an einem Aufnahmeprofil 4 gehalten. Man erkennt, daß das Anschlußaggregat aus zwei im Querschnitt gewölbten Blattfederleisten 5, 6 besteht, die mit ihrer konvexen Seite an der zwischen den Blattfederleisten 5, 6 angeordneten Scheibe 2 abgestützt sind. Die Blattfederleisten 5, 6 liegen andererseits an dem Aufnahmeprofil 4 bzw. an dem Abstandsrahmen 3 an.This teaching can be implemented in various ways. When executing 2, the spacer frame 3 is held together with the edge of the disc 1 in or on a receiving profile 4. It can be seen that the connection unit consists of two leaf spring strips 5, 6 which are curved in cross section and which are supported with their convex side on the disk 2 arranged between the leaf spring strips 5, 6. The leaf spring strips 5, 6, on the other hand, rest on the receiving profile 4 or on the spacer frame 3.

Bei der Ausführungsform nach den Fig. 3 und 4 ist ein weichelastisches Anschlußaggregat vorgesehen. Bei der Ausführungsform nach Fig. 3 gehört zu dem weichelastischen Anschlußaggre- gat wiederum ein Aufnahmeprofil 4 für dieses Anschlußaggregat mit der Scheibe 2. Das Anschlußaggregat besteht aus zwei weichelastischen Federprofilen 5, 6. Diese sind an der zwischen den Federprofilen 5, 6 angeordneten Scheibe 2 abgestützt. Die weichelastischen Federprofile 5, 6 sind andererseits am Aufnahmeprofil 4 bzw. am Abstandsrahmen 3 abgestützt. Sie weisen zusammen mit der Scheibe 2 eine reibungsarme Unterklotzung 7 auf, die auch an der Scheibe 2 allein angreifen kann. Die Unterklotzung 7 ist im einfachsten Falle als Gleitschuh ausgeführt, der entsprechend reibungsarm gestaltet und mit entsprechendem Spiel montiert ist. Bei der Ausführungsform nach Fig. 4 sind die beiden weichelastischen Federprofile 5, 6 unter Zwischenschaltung eines zum Abstandsrahmen 3 geführten Anschlußsteges 8 in einem Aufnahmeprofil 4 angeordnet. Dieses Aufnahmeprofil 4 ist aber einerseits an die zugeordnete Scheibe 1 und andererseits mit dem Anschlußsteg 8 an den Abstandsrahmen 3 angeschlossen. Hier erfolgt also die Federung nicht an der Scheibe 2, sondern im Bereich des Abstandsrahmens 3.In the embodiment according to FIGS. 3 and 4, a flexible connection unit is provided. In the embodiment of Fig. 3 belongs to the soft elastic Anschlußaggre- ga turn t a female profile 4 for this terminal unit with the disc 2. The terminal unit consists of two soft elastic spring profiles 5, 6. These are attached to the arranged between the groove profiles 5, 6 disc 2 supported. The soft elastic spring profiles 5, 6 are supported on the other hand on the receiving profile 4 or on the spacer frame 3. Together with the pane 2, they have a low-friction sub-block 7, which can also act on the pane 2 alone. In the simplest case, the sub-block 7 is designed as a sliding shoe, which is designed to have a correspondingly low friction and is mounted with a corresponding play. In the embodiment according to FIG. 4, the two soft elastic spring profiles 5, 6 are arranged in a receiving profile 4 with the interposition of a connecting web 8 guided to the spacer frame 3. This receiving profile 4 is connected on the one hand to the assigned disk 1 and on the other hand to the spacer frame 3 with the connecting web 8. So here the suspension does not take place on the disk 2, but in the area of the spacer frame 3

In den beschriebenen Ausführungsbeispielen besitzt das Anschlußaggregat zusätzliche Dichtungsanordnungen. Bei der Ausführungsform nach Fig. 2 handelt es sich um Weichdichtungen 9, die zwischen den Blattfederleisten 5, 6 und der Glasscheibe 2 angeordnet sind. Bei der Ausführungsform nach Fig. 3 und 4 handelt es sich um Dichtungsfolienstreifen 10, welche die weichelastischen Federprofile 5, 6 überbrücken.In the exemplary embodiments described, the connection unit has additional sealing arrangements. 2 is soft seals 9, which are arranged between the leaf spring strips 5, 6 and the glass pane 2. 3 and 4 are sealing film strips 10 which bridge the soft elastic spring profiles 5, 6.

Die Ausführungsform nach Fig. 5 ist mit der Erläuterung der Fig. 2 ohne weiteres verständlich. - Man erkennt, daß das sogenannte Aufnahmeprofil 4 auch aus einem Fensterrahmen 11 und aus einer Glashalteleiste 12 gebildet werden kann. Das gilt analog auch für die anderen Ausführungsformen.The embodiment according to FIG. 5 is readily understandable with the explanation of FIG. 2. - It can be seen that the so-called receiving profile 4 can also be formed from a window frame 11 and a glass retaining strip 12. The same applies analogously to the other embodiments.

In Fig. 6 sind zur weiteren Erläuterung die Kennlinien der Einzelfedern gemäß a) dem Beispiel nach Fig. 2 und b) nach Fig. 3 aufgezeichnet. Die Kräfte sind vektoriell gegen den Weg aufgetragen. Der Vektor sei als positiv definiert, wenn er von der Scheibe 1 wegzeigt und als negativ, wenn er von der Scheibe 2 in Richtung der Scheibe 1 verläuft. Der Weg s sei positiv, wenn sich die Scheibe 2 zur Scheibe 1 verlagert. Man erkennt, daß im Fall a) im Arbeitspunkt erhebliche Kräfte auf die Einzelfeder einwirken, daß diese sich aber gegenseitig aufheben. Im Fall b) ist die Vorspannung im Arbeitspunkt gering. Es liegt im Rahmen der Erfindung, ganz auf sie zu verzichten.For further explanation, the characteristic curves of the individual springs according to a) the example according to FIG. 2 and b) according to FIG. 3 are recorded in FIG. 6. The forces are vectorially plotted against the path. The vector is defined as positive if it points away from the disc 1 and as negative if it runs from the disc 2 in the direction of the disc 1. The path s is positive if the disc 2 shifts to disc 1. It can be seen that in case a) considerable forces act on the individual spring at the working point, but that these cancel each other out. In case b) the preload is low at the working point. It is within the scope of the invention to dispense with them entirely.

Claims (5)

1. An insulating glass unit with an inner pane, outer pane, surrounding spacing frame (3) and gas filling in the intermediate space, in which at least one of the panes (1, 2) is held at at least one edge by means of a resilient enclosure assembly capable of oscillating displacement under sound impact, which enclosure assembly offers a very small resistance to a small movement of the pane but a very much greater resistance to a large movement of the pane, characterized in that the resilient enclosure assembly has a spring characteristic such that when there is a deflection of the pane of about up to 5% compared with the pane spacing the working point A moves along a portion of the spring characteristic curve (FKA) that is basically horizontal, but beyond this point the spring force begins to increase rapidly, and that with a deflection of about 12% further deformation of the enclosure assembly is hardly possible.
2. An insulating glass unit according to claim 1 in the form of construction in which the spacing frame (3) together with the edge of the glass pane is held in or on a holding profile section (4), characterized in that the enclosure assembly consists of two leaf spring strips (5, 6) of arched cross-section which are supported with their convex sides against the pane (2) located between the spring strips (5, 6), their other sides lying against the holding profile (4) or the spacing frame (3).
3. An insulating glass unit according to claim 1 in the form of construction with a soft elastic enclosure assembly and holding profile section (4) for the enclosure assembly with the pane, characterized in that the enclosure assembly consists of two soft elastic spring profile sections (5, 6) which are supported against the pane (2) located between the spring profile sections (5, 6) and that the other sides of the spring profile sections which are supported against the holding profile section (4) or the spacing frame (3), together with the pane (2), possess a low-friction under-padding (7).
4. An insulating glass unit according to claim 1 in the form of construction with a soft elastic enclosure assembly, characterized in that the enclosure assembly consists of two soft elastic spring profile sections (5, 6) which are located in a holding profile section (4) with interposition of an enclosure fillet (8) leading to the holding profile section (4), and that the holding profile section is attached on one side to the associated pane (1) and on the other side by the enclosure fillet (8) to the spacing frame (3).
5. An insulating glass unit according to one of claims 1 to 4, characterized in that the enclosure assembly is additionally provided with sealing devices, these being in the form of soft gaskets (9) between the spring profile sections (5, 6) and the glass pane (2) or in the form of sealing profile strips (10), which bridge across the soft elastic spring profile sections (5, 6).
EP81102551A 1980-04-14 1981-04-04 Insulating glass with internal pane, external pane and spacer Expired EP0037993B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102551T ATE11803T1 (en) 1980-04-14 1981-04-04 INSULATING GLASS UNIT WITH INNER PANE, OUTER PANE AND SPACER FRAME.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3014207 1980-04-14
DE3014207A DE3014207C2 (en) 1980-04-14 1980-04-14 Insulating glass unit with inner pane, outer pane and gas filling in the space

Publications (2)

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EP0037993A1 EP0037993A1 (en) 1981-10-21
EP0037993B1 true EP0037993B1 (en) 1985-02-13

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EP81102551A Expired EP0037993B1 (en) 1980-04-14 1981-04-04 Insulating glass with internal pane, external pane and spacer

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US (2) US4416101A (en)
EP (1) EP0037993B1 (en)
AT (1) ATE11803T1 (en)
DE (1) DE3014207C2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE35149E (en) * 1990-09-20 1996-01-30 Anthony's Manufacturing Company, Inc. Railless refrigerator display door
US5097642A (en) * 1990-09-20 1992-03-24 Anthony's Manufacturing Company, Inc. Glass refrigerator door structure
US5113628A (en) * 1990-09-20 1992-05-19 Anthony's Manufacturing Company, Inc. Railless refrigerator display door
US5792523A (en) * 1996-03-14 1998-08-11 Aga Aktiebolag Krypton gas mixture for insulated windows
US6055783A (en) 1997-09-15 2000-05-02 Andersen Corporation Unitary insulated glass unit and method of manufacture
US6886297B1 (en) * 1998-07-23 2005-05-03 Ppg Industries Ohio, Inc. Insulating unitless window sash
US6333085B1 (en) * 1999-11-08 2001-12-25 Arpal Aluminum, Ltd. Resistant window systems
US6509071B1 (en) * 2000-02-09 2003-01-21 Arpal Aluminum Ltd. Reinforced window systems
FR2846029B1 (en) * 2002-10-17 2005-07-01 Saint Gobain INSULATING GLAZING
US7997037B2 (en) * 2003-06-23 2011-08-16 Ppg Industries Ohio, Inc. Integrated window sash with groove for desiccant material
CN1867749B (en) * 2003-06-23 2011-10-05 Ppg工业俄亥俄公司 Integrated window sash and methods of making an integrated window sash
DE102005045844B3 (en) * 2005-09-26 2007-02-01 Airbus Deutschland Gmbh Sound insulation panel for aircraft has inner and outer wall faces separated by evacuated gap with preloaded springs between faces
US7721844B1 (en) * 2006-10-13 2010-05-25 Damping Technologies, Inc. Vibration damping apparatus for windows using viscoelastic damping materials
GB2525101A (en) * 2012-11-12 2015-10-14 Philip John Carter Add-on window insulation system
BE1021707B1 (en) * 2013-01-11 2016-01-11 Agc Glass Europe GLAZING PANEL WITH PERIPHERAL SEAL AND CORRESPONDING MANUFACTURING METHOD.
CA2846049A1 (en) * 2013-03-15 2014-09-15 Andersen Corporation Glazing units with cartridge-based control units
US10900274B2 (en) * 2016-09-02 2021-01-26 Pella Corporation Anti-rattle elements for internal divider of glass assembly

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7738191U1 (en) * 1900-01-01 Wilh. Frank Gmbh, 7022 Leinfelden- Echterdingen
DE7139560U (en) * 1900-01-01 Aktiebolaget Emmaboda Glasverk Window pane
CH319150A (en) * 1953-05-05 1957-02-15 Bethge Walther Multiple panes consisting of at least two panes kept at a distance from one another, especially for sound and heat insulation purposes
DE1082386B (en) * 1957-08-22 1960-05-25 Thermo Chemical Dev Company Multi-pane insulating glass
US2934801A (en) * 1958-06-16 1960-05-03 Blaszkowski Henry Insulating window
FR1237594A (en) * 1958-10-16 1960-07-29 Multiple glazing device
FR1297594A (en) * 1961-08-09 1962-06-29 Set with electro-optical signaling elements, and electromagnetic control
DE1988348U (en) * 1968-02-19 1968-06-27 Stempel A G D SOUND INSULATING PANEL.
DE6750163U (en) * 1968-09-07 1969-01-02 Gemag Geraete Und Maschb Ag & GLASS STRIP FOR STORAGE OF TWO GLASS PANELS
US3824753A (en) * 1970-05-18 1974-07-23 Anderson V Mfg Co Window structure
CA953159A (en) * 1971-12-14 1974-08-20 Superseal Corporation Multiple glass panel unit
US3971178A (en) * 1974-03-25 1976-07-27 Ppg Industries, Inc. Add-on multiple glazing with hygroscopic material
DE2445332B2 (en) * 1974-09-23 1976-12-09 GGN Glashandels-Gesellschaft Nördlingen mbH & Co KG, 8860 Nördlingen SOUND-ABSORBING MULTI-PANEL INSULATION GLASS
DE7443197U (en) * 1974-12-27 1975-09-04 Bfg Glassgroup Insulating glass pane with high sound insulation
DE2531243A1 (en) * 1975-07-12 1976-10-14 Alex Walser Condensation-preventing multi-glazed window - haa elastomeric frame linings with grooves for panes
DE2726028C2 (en) * 1977-06-08 1986-03-06 Linde Ag, 6200 Wiesbaden Heat-insulating and sound-absorbing glass unit
FR2396879A1 (en) * 1977-07-05 1979-02-02 Air Liquide CRYOPUMP
US4208849A (en) * 1978-02-13 1980-06-24 Lamb James V Multiple glazed window and method

Also Published As

Publication number Publication date
DE3014207A1 (en) 1981-10-22
DE3014207C2 (en) 1983-12-29
EP0037993A1 (en) 1981-10-21
ATE11803T1 (en) 1985-02-15
US4416101A (en) 1983-11-22
US4485603A (en) 1984-12-04

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