EP2594721B1 - Isolierglas-Einheit - Google Patents

Isolierglas-Einheit Download PDF

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Publication number
EP2594721B1
EP2594721B1 EP12193241.2A EP12193241A EP2594721B1 EP 2594721 B1 EP2594721 B1 EP 2594721B1 EP 12193241 A EP12193241 A EP 12193241A EP 2594721 B1 EP2594721 B1 EP 2594721B1
Authority
EP
European Patent Office
Prior art keywords
film
spring element
cavity
glass unit
spacer
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.)
Active
Application number
EP12193241.2A
Other languages
English (en)
French (fr)
Other versions
EP2594721A3 (de
EP2594721A2 (de
Inventor
Jens Bøndergaard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VKR Holding AS
Original Assignee
VKR Holding AS
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Publication date
Application filed by VKR Holding AS filed Critical VKR Holding AS
Publication of EP2594721A2 publication Critical patent/EP2594721A2/de
Publication of EP2594721A3 publication Critical patent/EP2594721A3/de
Application granted granted Critical
Publication of EP2594721B1 publication Critical patent/EP2594721B1/de
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Classifications

    • 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
    • E06B3/6715—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 thermal insulation or for controlled passage of light
    • 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

Definitions

  • the exemplary and non-limiting embodiments of this invention relate generally to an insulated glass unit and more particularly to fixing an intermediate film arrangement in the insulated glass unit (IGU) by means of a spacer.
  • IGU insulated glass unit
  • IGU insulated glass units
  • Some IGU employ an intermediate film between the panes.
  • film solutions there are some previously described ways of fixing a film.
  • WO81/01950 shows a film suspended by winding it several times around a strip 18b ( fig. 3 ) and fixing it to a spacer by a barb.
  • US4334398 shows (fig. 10) holding of films 1 by circular tubes 8 inserted into a spacer cavity.
  • WO81/01950 discloses an insulated glass unit with the features of the preamble of claim 1.
  • IGUs Insulating glazing units with three or more glass layers are too heavy for standard usage in sizes above a certain threshold.
  • One way of lowering the weight of IGUs significantly is to substitute glass with lower density materials such as polymer sheets or films.
  • the invention relates to an insulated glass unit according to claim 1 and use of the system according to claim 11.
  • Favourable embodiments are defined in the dependent claims.
  • Another objective is to accommodate the film 3 and maintain the film stretched in an insulated glass unit that has thermal expansion and contraction. Another objective is an efficient assembly and fixing of the film.
  • Another objective is to provide a spacer with a low profile which enables a large view area for the IGU.
  • the present invention provides an insulating glazing unit in which the spacer 4 fixates one or more films 3 that are suspended inside the enclosed volume spanned by the spacer.
  • the plane of the film 3 is substantially parallel with the panes 1,2.
  • Figure 1 shows a cross section example of an insulated glass unit comprising a first pane 1 and a second pane 2 spaced apart by a spacer 4.
  • a spacer 4 is sealed to provide a sealed enclosure between the panes 1,2.
  • the seal (not shown) may be a first seal and a secondary seal which may optionally extend across the whole spacer exterior.
  • the spacer 4 has two sides facing the panes 1,2 and an exterior (bottom) which faces away from the enclosed interior space.
  • An intermediate film 3 is positioned in the enclosure by means of the spacer 4 and fixed by means of an insertable spring element 5.
  • the film 3 is clamped between the spring 5 and spacer 4.
  • the film 3 is inserted into a cavity of the spacer 4 and then covered and/or clamped by the spring element 5.
  • the film 3 periphery is under the spring 5 and the film 3 is clamped between the spring 5 on one side and the cavity on the other side.
  • the spacer 4 is adapted for fitting the film 3 in between the substantially rigid spacer 4 and the spring element 5.
  • the spring 5 is in part wrapped by the film 3.
  • the spring 5 covers the film 3 and keeps the film 3 in the cavity.
  • the cavity comprises a groove 4c and a shoulder 4e.
  • the film 3 is clamped by the spring 5 between the groove 4c and the shoulder 4e.
  • the spacer 4 has a cavity configured to insert the spring element 5 whereby the film 3 is fixed and optionally also kept stretched.
  • the spring element 5 presses the film 3 into a groove 4c by means of a slanted surface 4b (guide).
  • the friction between the spring 5 and the film 3 may wedge the film 3 and spring 5 into the groove 4c and the slanted surface 4b optionally ensure to stretch the film 3 during assembly.
  • slanted surface 4b is understood a surface slanted in relation to the plane of the installed film 3 and the slant is towards the spacer 4 side.
  • a slant angle of 30 to 60 degrees compared to the plane of the stretched film may be employed.
  • the slanted surface 4b may be a substantially straight line such as an inclined line.
  • the spacer cavity comprises a slanted portion 4b, slanted in relation to the plane of the stretched film 3 and slant towards the spacer side and terminates in a groove 4c configured to accept one end of the spring element 5.
  • the spacer cavity has a shoulder 4e opposite to the groove 4c configured to accept the second end of the spring element 5.
  • the groove 4c may be substantially V shaped.
  • the groove 4c is narrowing towards its inner end in order to guide the spring 5 and wedge the film 3.
  • the spacer 4 may have a ledge 4f which extends in part over the groove 4c.
  • the ledge 4f covers one end of the spring element 5 whereby the film is folded to provide a good hold.
  • the ledge 4f extends over the spacer cavity.
  • the ledge 4f extends over the spacer cavity and is opposite to a spring 5 fixating shoulder 4e.
  • the ledge 4f bends the film 3 substantially transversally to the plane of the intermediate film 3.
  • the ledge 4f defines the intermediate film 3 plane/position and enhances the film hold.
  • the spacer cavity has a protruding shoulder 4e opposite the groove 4c, and the shoulder 4e is configured to snap fix the spring element 5.
  • the spring element 5 is fixed in the cavity by means of the groove 4c and shoulder 4e. This enhances the installation of the film 3 assembly.
  • the spacer 4 comprises one or more grooves that are specially designed for containing a preferably metallic spring element 5 such as a leaf spring, resilient strip, a compressible wedge or a compressible shim.
  • Figure 2 shows an embodiment with two films 3a and 3b. Hereby insulation may be further enhanced even though assembly requires more effort.
  • the spacer 4 fixates one or more films 3.
  • the spring 5 employs metallic (or less preferred polymer/rubber) spring elements that grip the film 3 tightly, thus dispersing the permanent pull from the film 3 into the spring element 5.
  • the spring 5 is configured to resist a permanent pull from a film 3.
  • the spring element 5 may comprise shims, wedges, leaf springs, stip springs etc.
  • the spring element 5 is inserted on top of the film 3 in the cavity, so the spring element 5 covers at least part of the film 3 when fixed inside the cavity.
  • the spring element 5 substantially is a plate spring compressed by bending to one side.
  • plural spring elements 5 may be employed to clamp or sandwich the film 3.
  • the spring element 5 is a longitudinal member extending along with the spacer 4.
  • the spring element 5 is provided by discrete spring members distributed along the spacer 4.
  • the spacer 4 that holds the film 3 and spring elements 5 could be made of reinforced polyurethane that has good rigidity to resist a permanent pull from a film.
  • the substantially high specific rigidity of reinforced polyurethanes is one approach to solving the issue of spacer bending when using a film with tension.
  • This reinforced and rigid spacer 4 could for example be extruded, cast pultruded in such a way, that it is simultaneously part of the window frame design and/or so that it encapsulates glass sheets and/or polymer sheets (not shown) and optional intermediate sheets in addition to the film.
  • the material of the structurally rigid spacer 4 is made of a metal or polymer; preferably polyurethane reinforced by e.g. glassfibres. If the spacer 4 is made from metal i may be tubular and be roll formed. The spacer may be warm edge type.
  • the spacer 4 is substantially rigid, and this is understood as rigid in order to be suitable to space apart the panes of an insulated glass unit while maintaining a stretched film 3 and accommodating the force from a spring element 5.
  • Figure 4 illustrates how the film 3 stretch forces may provide a pressure effect, but the example also applies to the other figures.
  • the vertical stretch force from the film 3 is turned by the cavity ledge 4f (or slant 4b) so the spring 5 is forced sideways.
  • the other end of the spring distal from the vertical film 3 is pressed towards the shoulder 4e and this enhances the film 3 fix.
  • This mechanism may also help to accommodate the thermal expansion and contraction.
  • the spacer 4 may comprise a substantially solid and integral profile (in contrast to the conventional hollow tubular spacers), but the solid profile may of course comprise bubbles etc. Examples on fig. 3 and 4 illustrate that the spacer 4 may comprise a first substantially solid profile and may be combined with a second tubular metal profile 6.
  • the second metal profile 6 may face the exterior.
  • the spacer 4 may comprise plural parts such as a first part 4 configured to fix the film 3 and a second part 6 configured to space apart the IGU panes or configured to ensure a reduced gas leak.
  • the first part 4 may be from polymer while the second part 6 may be from metal such as aluminium.
  • the first part 4 faces the interior of the IGU while the second part 6 faces the exterior of the IGU.
  • the second metal profile 6 may be a thin metal coating for enhancing the gas impermeability.
  • both the spacer 4 element and the spring element 5 could be modified either structurally (e.g. wrt. roughness) or by coating thus modifying their coefficient of friction.
  • the spacer 4 comprises solely metallic elements, an additional main advantage is the lack of organic materials (except from the film 3). This means, that there is no degassing of volatile organic compounds from the spacer system.
  • the spring element 5 may be provided with a bend, profile or separate handle (not shown) for easier handling and assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Claims (11)

  1. Eine Isolierglaseinheit, beinhaltend mindestens zwei Scheiben (1, 2), die an ihren Randkanten durch ein Abstandshalterprofil (4) beabstandet sind, und eine fixierte und aufgehängte Zwischenfolie (3), wie etwa eine Polymerfolie, die mittels des Abstandshalterprofils (4) zwischen den zwei Scheiben angeordnet ist, wobei das Abstandshalterprofil (4) zwei Seiten, die den Scheiben (1, 2) zugewandt sind, und ein oder mehrere einfügbare Federelemente (5) aufweist, wobei:
    das Abstandshalterprofil eine Aussparung aufweist, die die einfügbaren Federelemente (5) hält,
    das Abstandshalterprofil (4) die Folie (3) zwischen der Abstandshalteraussparung und dem Federelement (5) befestigt,
    das Federelement (5) so in der Abstandshalteraussparung befestigt ist, dass das Federelement (5) eine Dauerkompression aufweist und die Folie (3) gegen die Aussparung presst,
    die Aussparung einen geneigten Abschnitt (4b) beinhaltet, der mit Bezug auf die Ebene der gespannten Folie (3) geneigt ist und zu einer der Seiten des Abstandshalterprofils (4) hin geneigt ist und in einer sich verengenden Auskehlung (4c) endet, welche ein erstes Ende des Federelements (5) aufnimmt, um die Folie (3) einzuklemmen und/oder zu spannen,
    wobei die Abstandshalteraussparung gegenüber der Auskehlung (4c) einen Vorsprung (4e) aufweist,
    dadurch gekennzeichnet, dass der Vorsprung ein zweites Ende des Federelements (5) aufnimmt, wobei die Folie (3) durch das Federelement (5) zwischen die Auskehlung (4c) und den Vorsprung (4e) geklemmt wird.
  2. Isolierglaseinheit gemäß dem vorhergehenden Anspruch, wobei das Federelement (5) so in dem Abstandshalterprofil (4) befestigt ist, dass es eine Dauerinnenkompression aufweist und somit, wenn fixiert, eine oder mehrere Dauerkräfte auf die Folie (3) überträgt, wobei mindestens eine Vektorkomponente davon in senkrechten Winkeln zu der Ebene der gespannten Folie (3) wirkt, um die Reibungskraft zwischen der Folie (3) und dem Federelement (5) auf einer Seite und der Abstandshalteraussparung auf der anderen Seite zu erhöhen.
  3. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei das Federelement (5) im Wesentlichen eine Tellerfeder ist und die Feder (5) mindestens einen Teil der Folie (3) innerhalb der Aussparung bedeckt.
  4. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei die Aussparung einen Abschnitt aufweist, der angepasst ist, um das komprimierte Federelement (5) unterzubringen, wobei der Abschnitt eine Weite aufweist, die kleiner als die ausgestreckte Länge des Federelements (5) ist, sodass das Federelement, wenn in der Aussparung fixiert, komprimiert ist.
  5. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei das Federelement (5) die Folie (3) mittels der geneigten Oberfläche (4b) in die Auskehlung (4c) presst, wobei die Reibung der Feder (5) die Folie (3) zu der Auskehlung (4c) hin presst und die Folie (3) spannt.
  6. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei die Abstandshalteraussparung den vorstehenden Vorsprung (4e) aufweist, wobei der Vorsprung (4e) konfiguriert ist, um das Federelement (5) einschnappend zu fixieren.
  7. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei das Abstandshalterprofil (4) einen im Wesentlichen massiven Körper beinhaltet und optional durch die Hinzufügung einer gasundurchlässigen Metallrückseite, die nach außen weist, für Gase undurchlässig ist.
  8. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei die Aussparung einen Abschnitt aufweist, der sich unter einer Kante (4f) erstreckt, und wobei die Kante (4f) die Ebene der gespannten Folie (3) definiert und wobei das Federelement (5) in den Aussparungsabschnitt eingefügt ist.
  9. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei das Federelement (5) die Folie (3) den geneigten Abschnitt (4b) abwärts elastisch vorspannt, um einen Effekt der Spannung der Folie (3) bereitzustellen.
  10. Isolierglaseinheit gemäß einem der vorhergehenden Ansprüche, wobei die Auskehlung (4c) im Wesentlichen V-förmig ist, was bezüglich der Ebene der gespannten Folie (3) im Wesentlichen zur Seite hin zeigt.
  11. Eine Verwendung einer Isolierglaseinheit gemäß den Ansprüchen 1-10 für ein Fenster oder eine Tür, um die Folie (3) in der Isolierglaseinheit zu fixieren und aufzuhängen.
EP12193241.2A 2011-11-18 2012-11-19 Isolierglas-Einheit Active EP2594721B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201100902 2011-11-18

Publications (3)

Publication Number Publication Date
EP2594721A2 EP2594721A2 (de) 2013-05-22
EP2594721A3 EP2594721A3 (de) 2016-07-13
EP2594721B1 true EP2594721B1 (de) 2017-12-20

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ID=47177841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12193241.2A Active EP2594721B1 (de) 2011-11-18 2012-11-19 Isolierglas-Einheit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019174914A1 (de) 2018-03-13 2019-09-19 Saint-Gobain Glass France Adapterplatte für eine isolierverglasung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2014587A3 (cs) * 2014-08-29 2016-01-06 Jiří Dobrovolný Izolační sklo a způsob jeho výroby
CH710658A1 (de) * 2015-01-29 2016-07-29 Glas Trösch Holding AG lsolierglas mit tragenden Eigenschaften.
CN110656850B (zh) * 2019-08-16 2020-08-14 周继才 一种密封隔热的节能门窗及其工艺
US11879290B2 (en) * 2021-02-17 2024-01-23 Vitro Flat Glass Llc Multi-pane insulating glass unit having a rigid frame for a third pane and method of making the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH636402A5 (de) * 1978-11-17 1983-05-31 Sulzer Ag Isolationselement zum einsatz zwischen den scheiben eines verbundfensters.
AT372749B (de) * 1979-04-13 1983-11-10 Weinlich Tilman Ludwig Dipl In Isolierglasscheibe
US4319623A (en) * 1980-01-14 1982-03-16 Minnesota Mining And Manufacturing Company Window structure including a sheet of polymeric film
US4468905A (en) * 1982-05-24 1984-09-04 Capitol Products Corporation Insulated glass spacer
UA81001C2 (en) * 2002-12-05 2007-11-26 Visionwall Corp Heat-insulation window

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019174914A1 (de) 2018-03-13 2019-09-19 Saint-Gobain Glass France Adapterplatte für eine isolierverglasung

Also Published As

Publication number Publication date
EP2594721A3 (de) 2016-07-13
EP2594721A2 (de) 2013-05-22

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