EP1055046A1 - Profiled spacer for an insulation-plate unit - Google Patents

Profiled spacer for an insulation-plate unit

Info

Publication number
EP1055046A1
EP1055046A1 EP99908747A EP99908747A EP1055046A1 EP 1055046 A1 EP1055046 A1 EP 1055046A1 EP 99908747 A EP99908747 A EP 99908747A EP 99908747 A EP99908747 A EP 99908747A EP 1055046 A1 EP1055046 A1 EP 1055046A1
Authority
EP
European Patent Office
Prior art keywords
spacer profile
spacer
profile according
chamber
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99908747A
Other languages
German (de)
French (fr)
Other versions
EP1055046B1 (en
EP1055046B2 (en
Inventor
Erwin Brunnhofer
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.)
Technoform Caprano and Brunnhofer GmbH and Co KG
Original Assignee
Technoform Caprano and Brunnhofer GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Technoform Caprano and Brunnhofer GmbH and Co KG filed Critical Technoform Caprano and Brunnhofer GmbH and Co KG
Publication of EP1055046A1 publication Critical patent/EP1055046A1/en
Publication of EP1055046B1 publication Critical patent/EP1055046B1/en
Application granted granted Critical
Publication of EP1055046B2 publication Critical patent/EP1055046B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66314—Section members positioned at the edges of the glazing unit of tubular shape
    • E06B3/66319—Section members positioned at the edges of the glazing unit of tubular shape of rubber, plastics or similar materials
    • 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
    • E06B2003/6638—Section members positioned at the edges of the glazing unit with coatings
    • 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
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67308—Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313—Making spacer frames, e.g. by bending or assembling straight sections by bending

Definitions

  • the present invention relates to a spacer profile made of an elastically-plastically deformable, poorly heat-conducting material for a spacer frame, which is to be attached in the edge region of at least two spaced apart panes, in particular transparent panes for insulating pane units, to form a pane spacing, the spacer profile comprising a chamber, which has in one of its walls a plastically deformable ner reinforcing element which extends in the longitudinal direction of the profile, and the spacer profile has a diffusion-proof layer which extends essentially over its entire width and length.
  • elastically-plastically deformable materials mean those materials in which elastic restoring forces are effective after the bending process, as is typically the case with plastics, part of the bending taking place via plastic, non-reversible deformation.
  • Plastically deformable materials include those materials in which practically no elastic restoring forces act after the deformation, as is typically the case when bending metals beyond the yield point.
  • Poorly heat-conducting or heat-insulating materials should be understood to mean those materials which, compared to metals, have a significantly lower, ie at least a factor of 10, lower thermal conductivity.
  • the thermal conductivity values are typically of the order of magnitude ⁇ 5 W / (mK) and below, preferably they are less than 1 W / (mK) and more preferably less than 0.3 W / (mK).
  • the panes of the insulating pane unit are normally glass panes made of inorganic or organic glass within the scope of the invention, but the invention is not restricted to this.
  • the panes can be coated or refined in some other way to give the insulating pane unit special functions, such as increased thermal insulation or soundproofing.
  • spacer frames The most important task of spacer frames is to keep panes of a pane unit at a distance, to ensure the mechanical strength of the unit and to protect the space between the panes from external influences.
  • insulating pane units with high thermal insulation it should be noted that the heat transfer characteristics of the edge bond and thus of the spacer profile from which the spacer frame is made require special attention.
  • plastic spacer profiles have also been used for a long time to take advantage of the low thermal conductivity of these materials.
  • materials of this type generally have a low diffusion tightness in comparison with metals.
  • filler gases such as argon, krypton, xenon and sulfur hexafluoride, with which the space between the panes is filled, must be kept within minimal limits
  • Use of plastic profiles usually requires special measures. For this reason z. B. proposed in DE 33 02 659 AI to provide a spacer profile with a vapor barrier by applying a metal foil or a metallized plastic film to the plastic profile.
  • Plastic profiles also have the disadvantage that they can be bent only with great effort or not at all to produce one-piece spacer frames.
  • plastic profiles become straight rods in the dimensions of each Cut the unit of appropriate dimensions and connect it to a spacer frame using several corner connectors.
  • the profile should be cold-bendable with conventional, if necessary slightly modified, conventional bending systems, that is to say it should be bendable with little or no heating so that disruptive deformations do not occur.
  • the reinforcing elements are embedded in the side walls of the spacer profile made of poorly heat-conducting material or are arranged on their surfaces and thus no direct thermal contact between the panes is produced by them, the heat conduction from one pane to the other is achieved by the spacer profile the reinforcing elements are influenced only to an extremely small extent.
  • the reinforcing elements are influenced only to an extremely small extent.
  • the arrangement of the reinforcing elements according to the invention ensures that when selecting the main volume fraction of the profile, the elastically-plastically deformable, poorly heat-conducting material, its plastic deformability is not in the foreground, but also almost completely elastic materials can be used if these are concerned of thermal insulation.
  • the reinforcement elements can be selected specifically with regard to their plastic deformability and their properties during the bending process, without their dimensions or their material being subject to significant restrictions with regard to the level of their thermal conductivity.
  • the material and the thickness of the diffusion-tight layer can only be selected with regard to their diffusion-tightness, without the diffusion-tight layer having to contribute to the deformability of the profile.
  • comparatively thin, diffusion-tight layers can be used within the scope of the invention, which is advantageous for cost reasons and for reducing the heat conduction through the profile. It is within the scope of the invention to dispense with a separate diffusion-proof layer if the material of the profile itself is already sufficiently diffusion-proof.
  • the profile according to the invention is designed as a hollow chamber profile, the chamber normally being filled with hygroscopic material and water-vapor-permeable regions, for example perforations, in the inner wall of the chamber facing the window space allowing steam or moisture to be exchanged between the window space and the chamber. This keeps the moisture content in the space between the panes low in order to avoid condensation at low temperatures.
  • the spacer profile can also have a U-shaped cross section which is open towards the space between the panes, if care is taken to ensure that the desiccant is firmly anchored in the chamber, for example by means of adhesion.
  • the cross section of the reinforcing elements can be designed in a variety of ways. So these elements z. B. be formed as wires, which enables simple and therefore inexpensive manufacture.
  • the reinforcing elements can also be designed as flat or angle profiles. This ensures a particularly high dimensional stability, especially in the cross-sectional corner areas, of the spacer profile.
  • a combination of wires and flat or angle profiles in a spacer profile is also possible.
  • the reinforcing elements generally consist of metal or a metal alloy, preferably aluminum or an aluminum alloy. This results in a particularly high plastic deformability of the spacer profile and a particularly low springback after bending
  • the diameter of the wires is preferably less than 3 mm, in particular about 1 mm, while the flat or angle profiles generally have a thickness of less than 3 mm, preferably a thickness of less than 1 mm.
  • Such a choice of the diameter of the wires or the thickness of the profiles ensures good plastic deformability with low material costs and low weight of the spacer profile.
  • the reinforcing elements are preferably arranged in cross-sectional corner regions of the spacer profile. These areas are very sensitive since they are particularly stressed by stretching or compression during the bending process, and damage occurs particularly at these points in conventional profiles during the bending process.
  • the arrangement of the reinforcing elements according to the invention in these areas prevents such damage from occurring.
  • reinforcing elements in the form of wires or angle profiles are arranged at least in the region of both ends of the two side walls, the bending resistance moment of the spacer profile advantageously increases thereby, so that particularly good cold bendability is achieved.
  • flat or angular profiles extend essentially over the entire height of the side walls of the spacer profile. The resulting high bending resistance moment gives the side walls a particularly high level of dimensional stability, so that the occurrence of disruptive deformations is reliably avoided.
  • angle profiles are provided in cross-sectional corner areas of the spacer profile, the cross-sectional shape of the angle profiles essentially corresponding to the cross-section of these corner areas, so that good protection of the spacer profile during the bending process and general handling and high dimensional stability is achieved .
  • reinforcing elements made of different materials within a profile.
  • Reinforcing elements made of composite materials can also be provided.
  • the reinforcing elements can have different materials or different thicknesses in their longitudinal direction or also over their cross section.
  • the plastic can contain conventional fillers, additives, dyes, UV protection agents, etc.
  • the diffusion-tight layer if present as a separate component, preferably consists of a material with a thermal conductivity ⁇ ⁇ 50 W / (mK). Metals have proven to be preferred materials for the diffusion-tight layer, in particular tinplate or also stainless steel.
  • the diffusion-tight layer can also consist of a plastic, such as a fluoropolymer, polyvinylidene chloride or ethyl vinyl acetate.
  • the diffusion-tight layer can be applied by physical or chemical coating processes, such as sputtering or plasma polymerization. However, it is preferably connected to the profile in a film-like manner. Here means “cohesively the "the permanent connection of the two components of the composite, for example by lamination, if necessary via an adhesion promoter, by embedding or similar techniques.
  • the diffusion-tight layer is arranged at least in the region of the outer wall of the chamber of the spacer profile, preferably also in the region of the side walls.
  • the diffusion-tight layer is preferably applied to the outside of the outer wall and, if appropriate, to the side walls of the chamber. But it can also be arranged on the inside or embedded in the walls. As a result, the bending process can be further simplified depending on the bending system, since direct contact of the mechanically sensitive diffusion-tight layer with force-exerting elements of the bending system can be avoided in this way. This also ensures permanent protection of the diffusion-tight layer.
  • the diffusion-tight layer can additionally be provided with a protective layer in order, for. B. largely avoid aging processes or radiation influences or damage caused by mechanical stresses.
  • the spacer profile is preferably glued to the inside of the panes with a butyl sealant based on polyisobutylene.
  • Figure 1 shows a first embodiment of a spacer profile in cross section with as
  • Figure 2 shows a second embodiment of the spacer profile in cross section with as
  • Figure 3 shows a third embodiment of the spacer profile in cross section with a
  • Figure 4 shows a fourth embodiment of the spacer profile in cross section with as
  • Angle profile trained reinforcing elements that are attached to the outside of the side walls of the spacer profile.
  • Figures 1 to 4 show cross-sectional views of spacer profiles according to the invention. This cross section does not normally change over the entire length of a spacer profile for the respective embodiments, apart from tolerances caused by production technology.
  • FIG. 1 shows a first embodiment of a spacer profile according to the present invention.
  • the spacer profile is arranged between panes 100, as a result of which a pane spacing 110, here with a width of approximately 15.5 mm, is defined.
  • the profile is attached to the inside of the panes 100 by means of adhesive 28.
  • a chamber 10 of the spacer profile with an essentially rectangular cross-section has side walls 20 and 26, an inner wall 24 facing the space between the panes and an outer wall 22 facing the outer edge of the insulating pane unit. It is at least partially filled with a hygroscopic material 12, for example silica gel or molecular sieve.
  • the hygroscopic material 14 can absorb moisture from this space through slits or perforations 14 or other areas permeable to water vapor in the inner wall 24 of the spacer profile.
  • reinforcement elements embodied as wires 30 are embedded, which extend in the longitudinal direction of the profile.
  • a diffusion-tight layer 60 is applied to the side walls 20 and 26 and the outer wall 22 of the spacer profile.
  • Aluminum wire 30 with a diameter of 1.2 mm was used here as the material for the reinforcing elements.
  • the two wires 30, each mounted in a side wall 20 or 26, are spaced apart such that their centers lie about 4.3 mm apart.
  • the spacer profile is made of polypropylene, the inner wall 24 and the outer wall 22 each having a thickness of approximately 1 mm, the side walls 20, 26 facing the panes each having a thickness of approximately 2.5 mm.
  • the diffusion-proof layer 60 which is integrally connected to the outside of the profile consists of a tinplate with a thickness of 0.125 mm. Overall, the profile weight is about 85 g / m.
  • the walls 20 to 26 of the chamber 10 of the spacer profile are shown in this figure as flat surfaces in a rectangular arrangement. It is within the scope of the invention to design individual walls, in particular the outer wall, with roundings, bevels or other modified shapes, as is customary for spacer profiles for insulating pane units, or to have the walls adjoin one another at angles deviating from 90 °.
  • FIG. 2 shows a further preferred embodiment in which the reinforcing elements are designed as flat profiles 40.
  • the flat profiles 40 are aluminum flat profiles with the dimensions 5.5 x 0.8 mm 2 .
  • the flat profiles 40 extend essentially over the entire height of the side walls 20 and 26 of the spacer profile.
  • the spacer profile is made of polypropylene with a wall thickness of 1 mm or 2 mm.
  • the diffusion-proof layer consists of a tinplate with a thickness of 0.125 mm, so that an overall profile weight of 97 g / m results.
  • FIG. 3 shows a further embodiment in which a combination of wires 30 and angle profiles 50 is used as reinforcing elements.
  • the wires 30 are again aluminum wires with a diameter of 1.2 mm, while the angle profiles 50 have a thickness of approximately 0.6 mm and a leg length of approximately 2 mm.
  • the angle profiles can also consist of 10
  • the angle profiles can also consist of a composite material. Furthermore, the angle profile in the areas in which it is bent to adapt to the outer contour of the spaced disks can consist of a different material or can have a different thickness than in its other areas, in which it runs largely in a straight line.
  • the cross-sectional shape of the angle profiles 50 essentially corresponds to the shape of the cross-sectional corner regions of the spacer profile. This ensures a particularly high level of dimensional stability.
  • a stainless steel sheet with a thickness of 0.05 mm is applied here as diffusion-tight layer 60.
  • FIG. 4 A further embodiment is shown in FIG. 4, in which the reinforcing elements are designed as angle profiles 55, which are attached to the outside on the side walls 20, 26 of the spacer profile and which, as it were, include spacer profiles made of polypropylene or PET in these areas.
  • the angle profiles 55 consist of tinplate or aluminum and have a thickness of approximately 0.5 mm.
  • the leg regions of the angle profile projecting into the inner wall 24 and the outer wall 22 of the spacer profile have a length of approximately 2 mm.
  • the diffusion-tight layer 60 consists of 0.05 mm stainless steel or a tinplate. It can also be provided that a barrier layer made of fluoropolymer is provided as the diffusion-tight layer 60.
  • the diffusion-tight layer 60 extends over the entire outer wall 22 of the spacer profile, in the exemplary embodiments according to FIGS. 1 and 2 additionally over the entire side walls 20, 26, while in the embodiment shown in FIG. 3 no separate diffusion-tight layer is provided.

Abstract

The invention relates to a spacer profile of an elastically-plastically deformable material with low heat conductivity for a spacer frame to be mounted in the marginal area of at least two spaced-apart panes by forming an intermediate pane space, whereby the spacer profile comprises a chamber which has in one of its walls at least one elastically-plastically deformable reinforcement element extending along the chamber, and whereby the spacer profile has a diffusion-proof layer extending substantially over its entire width and length. In order to produce the profile through cold flexion, the lateral walls of the chamber are each provided with at least one reinforcement element.

Description

Abstandhalterprofil für Isolierscheibeneinheit Spacer profile for insulating washer unit
Die vorliegende Erfindung betrifft ein Abstandhalterprofil aus einem elastisch-plastisch verformbaren, schlecht wärmeleitenden Material für einen Abstandhalterrahmen, der im Randbereich von mindestens zwei voneinander beabstandeten Scheiben, insbesondere transparenten Scheiben für Isolierscheibeneinheiten, unter Bildung eines Scheibenzwischenraumes anzubringen ist, wobei das Abstandhalterprofil eine Kammer umfaßt, die in einer ihrer Wände ein sich in Längsrichtung des Profils erstreckendes plastisch verformbares Nerstärkungs- element aufweist, und wobei das Abstandhalterprofil eine sich im wesentlichen über seine gesamte Breite und Länge erstreckende diffusionsdichte Schicht aufweist.The present invention relates to a spacer profile made of an elastically-plastically deformable, poorly heat-conducting material for a spacer frame, which is to be attached in the edge region of at least two spaced apart panes, in particular transparent panes for insulating pane units, to form a pane spacing, the spacer profile comprising a chamber, which has in one of its walls a plastically deformable ner reinforcing element which extends in the longitudinal direction of the profile, and the spacer profile has a diffusion-proof layer which extends essentially over its entire width and length.
Elastisch-plastisch verformbare Materialien meint im Rahmen der Erfindung solche Materialien, bei denen nach dem Biegeprozeß elastische Rückstellkräfte wirksam sind, wie es typischerweise bei Kunststoffen der Fall ist, wobei ein Teil der Biegung über eine plastische, nicht reversible Verformung erfolgt.Within the scope of the invention, elastically-plastically deformable materials mean those materials in which elastic restoring forces are effective after the bending process, as is typically the case with plastics, part of the bending taking place via plastic, non-reversible deformation.
Plastisch verformbare Materialien umfaßt solche Materialien, bei denen nach der Verformung praktisch keine elastischen Rückstellkräfte wirken, wie es typischerweise beim Biegen von Metallen über die Streckgrenze hinaus der Fall ist.Plastically deformable materials include those materials in which practically no elastic restoring forces act after the deformation, as is typically the case when bending metals beyond the yield point.
Unter schlecht wärmeleitenden oder wärmeisolierenden Materialien sollen solche Materialien verstanden werden, die gegenüber Metallen eine deutlich, das heißt mindestens um einen Faktor 10, geringere Wärmeleitfähigkeit zeigen. Die Wärmeleitwerte liegen typischerweise in der Größenordnung λ « 5 W/ (m-K) und darunter, bevorzugt sind sie kleiner als 1 W/ (m-K) und weiter bevorzugt kleiner als 0, 3 W/ (m-K). Die Scheiben der Isolierscheibeneinheit sind im Rahmen der Erfindung normalerweise Glasscheiben aus anorganischem oder organischem Glas, ohne daß die Erfindung allerdings hierauf beschränkt wäre. Die Scheiben können beschichtet oder auf andere Weise veredelt sein, um der Isolierscheibeneinheit besondere Funktionen, wie erhöhte Wärmedämmung oder Schalldämmung, zu verleihen.Poorly heat-conducting or heat-insulating materials should be understood to mean those materials which, compared to metals, have a significantly lower, ie at least a factor of 10, lower thermal conductivity. The thermal conductivity values are typically of the order of magnitude λ 5 W / (mK) and below, preferably they are less than 1 W / (mK) and more preferably less than 0.3 W / (mK). The panes of the insulating pane unit are normally glass panes made of inorganic or organic glass within the scope of the invention, but the invention is not restricted to this. The panes can be coated or refined in some other way to give the insulating pane unit special functions, such as increased thermal insulation or soundproofing.
Abstandhalterrahmen haben als wichtigste Aufgabe, Scheiben einer Scheibeneinheit auf Abstand zu halten, die mechanische Festigkeit der Einheit zu gewährleisten und den Scheiben- zwischenraum vor äußeren Einflüssen zu schützen. Vor allem bei Isolierscheibeneinheiten mit hoher Wärmedämmung ist festzustellen, daß die Wärmeübertragungscharakteristik des Randverbundes und damit des Abstandhalterprofils, aus dem der Abstandhalterrahmen hergestellt ist, besonderer Beachtung bedarf. Eine Verschlechterung der Wärmedämmung einer hoch wärmedämmend ausgelegten Isolierscheibeneinheit im Randbereich insbesondere durch übliche metallische Abstandhalter ist mehrfach nachgewiesen worden.The most important task of spacer frames is to keep panes of a pane unit at a distance, to ensure the mechanical strength of the unit and to protect the space between the panes from external influences. Particularly in the case of insulating pane units with high thermal insulation, it should be noted that the heat transfer characteristics of the edge bond and thus of the spacer profile from which the spacer frame is made require special attention. A deterioration in the thermal insulation of a highly thermally insulating insulating pane unit in the edge area, in particular due to conventional metallic spacers, has been demonstrated several times.
Deshalb werden seit längerer Zeit neben metallischen Abstandhalterprofilen auch Abstandhalterprofile aus Kunststoff verwendet, um die geringe Wärmeleitfähigkeit dieser Materialien auszunutzen. Allerdings weisen derartige Materialien in der Regel eine im Vergleich zu Metallen geringe Diffusionsdichtigkeit auf. Da aber verhindert werden muß, daß in der Umgebung vorhandene Luftfeuchtigkeit in den Scheibenzwischenraum eindringt und auch ein Entweichen von Füllgasen, wie beispielsweise Argon, Krypton, Xenon und Schwefelhexafluorid, mit denen der Scheibenzwischenraum gefüllt ist, in minimalen Grenzen gehalten werden muß, sind bei der Verwendung von Profilen aus Kunststoff in der Regel besondere Maßnahmen erforderlich. Aus diesem Grunde ist z. B. in der DE 33 02 659 AI vorgeschlagen, ein Abstandhalterprofil mit einer Dampfsperre zu versehen, indem auf das Kunststoffprofil eine Metallfolie oder eine metallisierte Kunststoff-Folie aufgebracht wird.Therefore, in addition to metallic spacer profiles, plastic spacer profiles have also been used for a long time to take advantage of the low thermal conductivity of these materials. However, materials of this type generally have a low diffusion tightness in comparison with metals. However, since it must be prevented that air humidity present in the environment penetrates into the space between the panes and the escape of filler gases, such as argon, krypton, xenon and sulfur hexafluoride, with which the space between the panes is filled, must be kept within minimal limits Use of plastic profiles usually requires special measures. For this reason z. B. proposed in DE 33 02 659 AI to provide a spacer profile with a vapor barrier by applying a metal foil or a metallized plastic film to the plastic profile.
Kunststoffprofile haben weiterhin den Nachteil, daß sie sich nur unter hohem Aufwand oder gar nicht zur Herstellung einstückiger Abstandhalterrahmen biegen lassen. Im allgemeinen werden daher Kunststoffprofile zu geraden Stangen in den den Abmessungen der jeweiligen Scheibeneinheit entsprechenden Maßen geschnitten und durch mehrere Eckverbinder miteinander zu einem Abstandhalterrahmen verbunden.Plastic profiles also have the disadvantage that they can be bent only with great effort or not at all to produce one-piece spacer frames. In general, plastic profiles become straight rods in the dimensions of each Cut the unit of appropriate dimensions and connect it to a spacer frame using several corner connectors.
Die DE 93 03 795 Ul, die für die Formulierung des Oberbegriffs des Anspruches 1 herangezogen wurde, offenbart sich in Längsrichtung des Profils erstreckende Verstärkungskörper, die ausschließlich in der dem Scheibenzwischenraum zugewandten Innenwand des Abstand- halterprofils eingebettet sind. Dadurch sollen sie die Stabilität der dem Scheibenzwischenraum zugewandten Innenwand, die durch UV-Einstrahlung und Wärmeausdehnung gefährdet ist, unterstützen. Das Biegeverhalten des vorbekannten Profils ist in der Druckschrift nicht angesprochen.DE 93 03 795 U1, which was used to formulate the preamble of claim 1, discloses reinforcing bodies which extend in the longitudinal direction of the profile and are embedded exclusively in the inner wall of the spacer profile facing the space between the panes. This is intended to support the stability of the inner wall facing the space between the panes, which is endangered by UV radiation and thermal expansion. The bending behavior of the previously known profile is not addressed in the publication.
Es ist die Aufgabe der vorliegenden Erfindung, ein im großen Maßstab kostengünstig produzierbares wärmeisolierendes Abstandhalterprofil zur Verfügung zu stellen, aus dem einfach ein einstückiger Abstandhalterrahmen herstellbar sein soll. Das Profil soll insbesondere mit üblichen, allenfalls geringfügig modifizierten konventionellen Biegeanlagen kaltbiegbar sein, also mit allenfalls geringer Erwärmung so biegbar sein, daß störende Verformungen nicht auftreten.It is the object of the present invention to provide a heat-insulating spacer profile which is inexpensive to produce on a large scale and from which a one-piece spacer frame should be easy to produce. In particular, the profile should be cold-bendable with conventional, if necessary slightly modified, conventional bending systems, that is to say it should be bendable with little or no heating so that disruptive deformations do not occur.
Diese Aufgabe wird durch ein Abstandhalteφrofil mit den Merkmalen des Patentanspruches 1 gelöst. Erfindungsgemäß ist vorgesehen, daß die Seitenwände der Kammer jeweils mit mindestens einem Verstärkungselement versehen sind.This object is achieved by a spacer profile with the features of claim 1. According to the invention it is provided that the side walls of the chamber are each provided with at least one reinforcing element.
Da bei einem erfindungsgemäßen Abstandhalterprofil die Verstärkungselemente in die aus schlecht wärmeleitenden Material bestehenden Seitenwände des Abstandhalteφrofils eingebettet oder auf deren Oberflächen angeordnet sind und somit durch diese kein direkter thermischer Kontakt zwischen den Scheiben hergestellt wird, wird die Wärmeleitung von einer Scheibe zur anderen durch das Abstandhalteφrofil durch die Verstärkungselemente nur in äußerst geringem Maße beeinflußt. Durch ihre plastische Verformbarkeit sowie die Anordnung im Bereich der Seitenwände des Profils tragen sie andererseits entscheidend zur Erfüllung der der Erfindung zugrundeliegenden Aufgabe bei. Durch die erfindungsgemäße Anordnung der Verstärkungselemente wird erreicht, daß bei der Auswahl des den Haupt- Volumenanteil des Profils ausmachenden elastisch-plastisch verformbaren, schlecht wärmeleitenden Materials dessen plastische Verformbarkeit nicht im Vordergrund steht, sondern auch nahezu vollkommen elastische Materialien verwendet werden können, wenn diese hinsichtlich der Wärmeisolation Vorteile bieten. Auf der anderen Seite können die Verstärkungselemente gezielt im Hinblick auf ihre plastische Verformbarkeit und ihre Eigenschaften während des Biegeprozesses ausgewählt werden, ohne daß ihre Abmessungen oder ihr Material im Hinblick auf die Höhe ihrer Wärmeleitfähigkeit wesentlichen Einschränkungen unterworfen sind.Since in a spacer profile according to the invention the reinforcing elements are embedded in the side walls of the spacer profile made of poorly heat-conducting material or are arranged on their surfaces and thus no direct thermal contact between the panes is produced by them, the heat conduction from one pane to the other is achieved by the spacer profile the reinforcing elements are influenced only to an extremely small extent. On the other hand, due to their plastic deformability and the arrangement in the region of the side walls of the profile, they make a decisive contribution to fulfilling the object on which the invention is based. The arrangement of the reinforcing elements according to the invention ensures that when selecting the main volume fraction of the profile, the elastically-plastically deformable, poorly heat-conducting material, its plastic deformability is not in the foreground, but also almost completely elastic materials can be used if these are concerned of thermal insulation. On the other hand, the reinforcement elements can be selected specifically with regard to their plastic deformability and their properties during the bending process, without their dimensions or their material being subject to significant restrictions with regard to the level of their thermal conductivity.
Ferner kann das Material und die Dicke der diffusionsdichten Schicht lediglich im Hinblick auf ihre Diffusionsdichtigkeit ausgewählt werden, ohne daß die diffusionsdichte Schicht zur Verformbarkeit des Profils beitragen muß. Damit können im Rahmen der Erfindung vergleichsweise dünne diffusionsdichte Schichten eingesetzt werden, was aus Kostengründen und zur Reduzierung der Wärmeleitung durch das Profil vorteilhaft ist. Es liegt im Rahmen der Erfindung, auf eine separate diffusionsdichte Schicht zu verzichten, sofern das Material des Profils selbst bereits ausreichend diffusionsdicht ist.Furthermore, the material and the thickness of the diffusion-tight layer can only be selected with regard to their diffusion-tightness, without the diffusion-tight layer having to contribute to the deformability of the profile. In this way, comparatively thin, diffusion-tight layers can be used within the scope of the invention, which is advantageous for cost reasons and for reducing the heat conduction through the profile. It is within the scope of the invention to dispense with a separate diffusion-proof layer if the material of the profile itself is already sufficiently diffusion-proof.
Für den Biegeprozeß sind marktübliche Biegeanlagen ohne nennenswerte Modifikationen geeignet.Conventional bending systems without any noteworthy modifications are suitable for the bending process.
Das erfindungsgemäße Profil ist als Hohlkammeφrofil gestaltet, wobei die Kammer im Normalfall mit hygroskopischem Material gefüllt wird und wobei wasserdampfdurchlässige Bereiche, z.B. Perforationen, in der dem Scheibenzwischenraum zugewandten Innenwand der Kammer einen Dampf- oder Feuchtigkeitsaustausch zwischen dem Scheibenzwischenraum und der Kammer ermöglichen. Dadurch wird der Feuchtigkeitsgehalt in dem Scheibenzwischenraum niedrig gehalten, um eine Kondensation bei niedrigen Temperaturen zu vermeiden. Alternativ kann das Abstandhalteφrofil auch einen zum Scheibenzwischenraum hin offenen U-förmigen Querschnitt aufweisen, wenn dafür gesorgt wird, daß das Trockenmittel fest in der Kammer verankert ist, z.B. über Adhäsion. Der Querschnitt der Verstärkungselemente kann mannigfaltig ausgebildet werden. So können diese Elemente z. B. als Drähte ausgebildet sein, was eine einfache und damit kostengünstige Herstellung ermöglicht.The profile according to the invention is designed as a hollow chamber profile, the chamber normally being filled with hygroscopic material and water-vapor-permeable regions, for example perforations, in the inner wall of the chamber facing the window space allowing steam or moisture to be exchanged between the window space and the chamber. This keeps the moisture content in the space between the panes low in order to avoid condensation at low temperatures. Alternatively, the spacer profile can also have a U-shaped cross section which is open towards the space between the panes, if care is taken to ensure that the desiccant is firmly anchored in the chamber, for example by means of adhesion. The cross section of the reinforcing elements can be designed in a variety of ways. So these elements z. B. be formed as wires, which enables simple and therefore inexpensive manufacture.
Ferner können die Verstärkungselemente auch als Flach- oder Winkelprofile ausgebildet sein. Dadurch wird eine besonders hohe Formstabilität, besonders in den Querschnitts-Eckberei- chen, des Abstandhalteφrofils gewährleistet. Es ist auch eine Kombination von Drähten und Flach- oder Winkelprofilen in einem Abstandhalteφrofil möglich.Furthermore, the reinforcing elements can also be designed as flat or angle profiles. This ensures a particularly high dimensional stability, especially in the cross-sectional corner areas, of the spacer profile. A combination of wires and flat or angle profiles in a spacer profile is also possible.
Die Verstärkungselemente bestehen im allgemeinen aus Metall oder aus einer Metall-Legierung, bevorzugt aus Aluminium oder aus einer Aluminiumlegierung. Dadurch wird eine besonders hohe plastische Verformbarkeit des Abstandhalteφrofϊls und ein besonders geringes Rückfedem nach dem Biegen erreichtThe reinforcing elements generally consist of metal or a metal alloy, preferably aluminum or an aluminum alloy. This results in a particularly high plastic deformability of the spacer profile and a particularly low springback after bending
Der Durchmesser der Drähte liegt bevorzugt bei weniger als 3 mm, insbesondere bei etwa 1 mm, während die Flach- oder Winkelprofile im allgemeinen eine Dicke von weniger als 3 mm, bevorzugt eine Dicke von weniger als 1 mm, aufweisen. Durch eine solche Wahl der Durchmesser der Drähte bzw. der Dicke der Profile wird eine gute plastische Verformbarkeit bei geringen Materialkosten und geringem Gewicht des Abstandhalteφrofils sichergestellt.The diameter of the wires is preferably less than 3 mm, in particular about 1 mm, while the flat or angle profiles generally have a thickness of less than 3 mm, preferably a thickness of less than 1 mm. Such a choice of the diameter of the wires or the thickness of the profiles ensures good plastic deformability with low material costs and low weight of the spacer profile.
Die Verstärkungselemente sind bevorzugt in Querschnitts-Eckbereichen des Abstandhalter- profils angeordnet. Diese Bereiche sind, da sie beim Biegeprozeß durch Dehnung oder Stauchung besonders beansprucht werden, sehr empfindlich, und Schäden treten bei herkömmlichen Profilen während des Biegeprozesses besonders an diesen Stellen auf. Die erfindungsgemäße Anordnung der Verstärkungselemente in diesen Bereichen verhindert das Auftreten solcher Schäden. Werden Verstärkungselemente in Form von Drähten oder Winkelprofilen zumindest im Bereich beider Enden der beiden Seitenwände angeordnet, so erhöht sich hierdurch das Biegewiderstandsmoment des Abstandhalteφrofils in vorteilhafter Weise, so daß eine besonders gute Kaltbiegbarkeit erreicht wird. In einer anderen bevorzugten Ausführungsform erstrecken sich Flach- oder Winkelprofile im wesentlichen über die gesamte Höhe der Seitenwände des Abstandhalteφrofils. Durch das so entstehende hohe Biegewiderstandsmoment wird den Seitenwänden eine besonders hohe Formstabilität verliehen, so daß das Auftreten störender Verformungen zuverlässig vermieden wird.The reinforcing elements are preferably arranged in cross-sectional corner regions of the spacer profile. These areas are very sensitive since they are particularly stressed by stretching or compression during the bending process, and damage occurs particularly at these points in conventional profiles during the bending process. The arrangement of the reinforcing elements according to the invention in these areas prevents such damage from occurring. If reinforcing elements in the form of wires or angle profiles are arranged at least in the region of both ends of the two side walls, the bending resistance moment of the spacer profile advantageously increases thereby, so that particularly good cold bendability is achieved. In another preferred embodiment, flat or angular profiles extend essentially over the entire height of the side walls of the spacer profile. The resulting high bending resistance moment gives the side walls a particularly high level of dimensional stability, so that the occurrence of disruptive deformations is reliably avoided.
Bei einer weiteren bevorzugten Ausführungsform sind Winkelprofile in Querschnitts-Eck- bereichen des Abstandhalteφrofils vorgesehen, wobei die Querschnittsform der Winkelprofile im wesentlichen dem Querschnitt dieser Eckbereiche entspricht, so daß ein guter Schutz des Abstandhalteφrofils während des Biegeprozesses und der allgemeinen Handhabung sowie eine hohe Formstabilität erreicht wird.In a further preferred embodiment, angle profiles are provided in cross-sectional corner areas of the spacer profile, the cross-sectional shape of the angle profiles essentially corresponding to the cross-section of these corner areas, so that good protection of the spacer profile during the bending process and general handling and high dimensional stability is achieved .
Es liegt im Rahmen der Erfindung, Verstärkungselemente aus unterschiedlichen Materialien innerhalb eines Profils vorzusehen. Auch können Verstärkungselemente aus Verbundwerkstoffen vorgesehen sein. Die Verstärkimgselemente können in ihrer Längsrichtung oder auch über ihren Querschnitt unterschiedliche Materialien oder unterschiedliche Dicken aufweisen.It is within the scope of the invention to provide reinforcing elements made of different materials within a profile. Reinforcing elements made of composite materials can also be provided. The reinforcing elements can have different materials or different thicknesses in their longitudinal direction or also over their cross section.
Als besonders gut geeignete wärmeisolierende Materialien für das Abstandhalteφrofil haben sich thermoplastische Kunststoffe mit einem Wärmeleitwert λ < 0, 3 W/ (m-K) , z. B. Polypropylen, Polyethylenterephthalat, Polyamid oder Polycarbonat, erwiesen. Der Kunststoff kann übliche Füllstoffe, Additive, Farbstoffe, Mittel zum UV-Schutz usw. enthalten.Thermoplastic materials with a thermal conductivity λ <0.3 W / (m-K), for example, have proven to be particularly suitable as heat-insulating materials for the spacer profile. B. polypropylene, polyethylene terephthalate, polyamide or polycarbonate. The plastic can contain conventional fillers, additives, dyes, UV protection agents, etc.
Die diffusionsdichte Schicht besteht, sofem als separates Bauteil vorhanden, bevorzugt aus einem Material mit einem Wärmeleitwert λ < 50 W/ (m-K). Als bevorzugte Materialien für die diffusionsdichte Schicht haben sich Metalle herausgestellt, insbesondere Weißblech oder auch Edelstahl. Die diffusionsdichte Schicht kann ferner aus einem Kunststoff, wie einem Fluoφolymer, Polyvinylidenchlorid oder Ethylvinylacetat bestehen. Die diffusionsdichte Schicht kann durch physikalische oder chemische Beschichtungsverfahren wie beispielsweise durch Sputtern oder Plasmapolymerisation aufgebracht werden. Vorzugsweise wird sie jedoch in Folienform stoffschlüssig mit dem Profil verbunden. Dabei meint "stoffschlüssig verbin- den" das dauerhafte Verbinden der beiden Komponenten des Verbundes beispielsweise durch Auflaminieren, ggf. über einen Haftvermittler, durch Einbetten oder ähnliche Techniken.The diffusion-tight layer, if present as a separate component, preferably consists of a material with a thermal conductivity λ <50 W / (mK). Metals have proven to be preferred materials for the diffusion-tight layer, in particular tinplate or also stainless steel. The diffusion-tight layer can also consist of a plastic, such as a fluoropolymer, polyvinylidene chloride or ethyl vinyl acetate. The diffusion-tight layer can be applied by physical or chemical coating processes, such as sputtering or plasma polymerization. However, it is preferably connected to the profile in a film-like manner. Here means "cohesively the "the permanent connection of the two components of the composite, for example by lamination, if necessary via an adhesion promoter, by embedding or similar techniques.
Die diffusionsdichte Schicht wird zumindest im Bereich der Außenwand der Kammer des Abstandhalteφrofils angeordnet, vorzugsweise auch im Bereich der Seitenwände.The diffusion-tight layer is arranged at least in the region of the outer wall of the chamber of the spacer profile, preferably also in the region of the side walls.
Aus Kostengründen und aus produktionstechnischen Gründen wird die diffusionsdichte Schicht bevorzugt auf die Außenseite der Außenwand und gegebenenfalls der Seitenwände der Kammer aufgebracht. Sie kann aber auch auf deren Innenseite angeordnet oder in die Wände eingebettet werden. Dadurch kann der Biegeprozeß je nach Biegeanlage weiter vereinfacht werden, da auf diese Weise ein direkter Kontakt der mechanisch empfindlichen diffusionsdichten Schicht mit kraftausübenden Elementen der Biegeanlage vermieden werden kann. Außerdem kann hierdurch ein dauerhafter Schutz der diffusionsdichten Schicht sichergestellt werden.For reasons of cost and for reasons of production technology, the diffusion-tight layer is preferably applied to the outside of the outer wall and, if appropriate, to the side walls of the chamber. But it can also be arranged on the inside or embedded in the walls. As a result, the bending process can be further simplified depending on the bending system, since direct contact of the mechanically sensitive diffusion-tight layer with force-exerting elements of the bending system can be avoided in this way. This also ensures permanent protection of the diffusion-tight layer.
Die diffusionsdichte Schicht kann zusätzlich mit einer Schutzschicht versehen werden, um z. B. Alterungsprozesse oder Strahlungseinflüsse oder auch Beschädigungen durch mechanische Beanspruchungen weitgehend zu vermeiden.The diffusion-tight layer can additionally be provided with a protective layer in order, for. B. largely avoid aging processes or radiation influences or damage caused by mechanical stresses.
Bei einer erfindungsgemäßen Scheibeneinheit mit einem wie oben beschriebenen Abstandhalteφrofil wird das Abstandhalteφrofil bevorzugt mit einem Butyldichtstoff auf Basis von Polyisobutylen mit den Innenseiten der Scheiben verklebt.In a pane unit according to the invention with a spacer profile as described above, the spacer profile is preferably glued to the inside of the panes with a butyl sealant based on polyisobutylene.
Im folgenden soll die Erfindung anhand der Zeichnungen weiter erläutert werden. Dabei zeigt:The invention will be explained in more detail below with reference to the drawings. It shows:
Figur 1 eine erste Ausfuhrungsform eines Abstandhalteφrofils im Querschnitt mit alsFigure 1 shows a first embodiment of a spacer profile in cross section with as
Drähten ausgebildeten Verstärkungselementen einschließlich der Scheiben,Wires formed reinforcing elements including the washers,
Figur 2 eine zweite Ausfuhrungsform des Abstandhalteφrofils im Querschnitt mit alsFigure 2 shows a second embodiment of the spacer profile in cross section with as
Flachprofilen ausgebildeten Verstärkungselementen, Figur 3 eine dritte Ausführungsform des Abstandhalteφrofils im Querschnitt mit einerReinforcing elements formed by flat profiles, Figure 3 shows a third embodiment of the spacer profile in cross section with a
Kombination von als Drähten ausgebildeten Verstärkungselementen und als Winkelprofil ausgebildeten Verstärkungselementen,Combination of reinforcement elements designed as wires and reinforcement elements designed as an angle profile,
Figur 4 eine vierte Ausführungsform des Abstandhalteφrofils im Querschnitt mit alsFigure 4 shows a fourth embodiment of the spacer profile in cross section with as
Winkelprofil ausgebildeten Verstärkungselementen, die außen an den Seitenwänden des Abstandhalteφrofils angebracht sind.Angle profile trained reinforcing elements that are attached to the outside of the side walls of the spacer profile.
Die Figuren 1 bis 4 zeigen Querschnittsansichten von erfindungsgemäßen Abstandhalter- profilen. Dieser Querschnitt ändert sich im Normalfall über die gesamte Länge eines Abstandhalteφrofils für die jeweiligen Ausführungsformen, abgesehen von herstellungstechnisch bedingten Toleranzen, nicht.Figures 1 to 4 show cross-sectional views of spacer profiles according to the invention. This cross section does not normally change over the entire length of a spacer profile for the respective embodiments, apart from tolerances caused by production technology.
In Figur 1 ist eine erste Ausführungsform eines Abstandhalteφrofils gemäß der vorliegenden Erfindung dargestellt. Das Abstandhalteφrofil ist zwischen Scheiben 100 angeordnet, wodurch ein Scheibenzwischenraum 110, hier mit einer Breite von etwa 15,5 mm, definiert wird. Das Profil ist mittels Kleber 28 an den Innenseiten der Scheiben 100 befestigt. Eine Kammer 10 des Abstandhalteφrofils mit einem im wesentlichen rechteckigen Querschnitt weist Seitenwände 20 und 26, eine zum Scheibenzwischenraum gewandte Innenwand 24 sowie eine zur Außenkante der Isolierscheibeneinheit weisende Außenwand 22 auf. Sie ist mit einem hygroskopischen Material 12, beispielsweise Silikagel oder Molekularsieb, zumindest teilweise gefüllt. Das hygroskopische Material 14 kann durch Schlitze oder Perforationen 14 oder sonstige wasserdampfdurchlässige Bereiche in der Innenwand 24 des Abstandhalteφrofils Feuchtigkeit aus diesem Zwischenraum aufnehmen.FIG. 1 shows a first embodiment of a spacer profile according to the present invention. The spacer profile is arranged between panes 100, as a result of which a pane spacing 110, here with a width of approximately 15.5 mm, is defined. The profile is attached to the inside of the panes 100 by means of adhesive 28. A chamber 10 of the spacer profile with an essentially rectangular cross-section has side walls 20 and 26, an inner wall 24 facing the space between the panes and an outer wall 22 facing the outer edge of the insulating pane unit. It is at least partially filled with a hygroscopic material 12, for example silica gel or molecular sieve. The hygroscopic material 14 can absorb moisture from this space through slits or perforations 14 or other areas permeable to water vapor in the inner wall 24 of the spacer profile.
In allen Querschnitts-Eckbereichen sind als Drähte 30 ausgebildete Verstärkungselemente eingebettet, die sich in Längsrichtung des Profils erstrecken.In all cross-sectional corner areas, reinforcement elements embodied as wires 30 are embedded, which extend in the longitudinal direction of the profile.
Auf den Seitenwänden 20 und 26 und der Außenwand 22 des Abstandhalteφrofils ist eine diffusionsdichte Schicht 60 aufgebracht. Als Material für die Verstärkungselemente wurde hier Aluminiumdraht 30 mit einem Durchmesser von 1,2 mm verwendet. Die zwei jeweils in einer Seitenwand 20 bzw. 26 angebrachten Drähte 30 sind so beabstandet, daß ihre Mittelpunkte um etwa 4,3 mm auseinanderliegen. Das Abstandhalteφrofil besteht aus Polypropylen, wobei die Innenwand 24 und die Außenwand 22 jeweils eine Dicke von etwa 1 mm, die den Scheiben zugewandten Seitenwände 20, 26 jeweils eine Dicke von etwa 2,5 mm aufweisen. Die stoffschlüssig mit der Außenseite des Profils verbundene diffusionsdichte Schicht 60 besteht aus einem Weißblech mit einer Dicke von 0,125 mm. Insgesamt ergibt sich ein Profilgewicht von etwa 85 g/m.A diffusion-tight layer 60 is applied to the side walls 20 and 26 and the outer wall 22 of the spacer profile. Aluminum wire 30 with a diameter of 1.2 mm was used here as the material for the reinforcing elements. The two wires 30, each mounted in a side wall 20 or 26, are spaced apart such that their centers lie about 4.3 mm apart. The spacer profile is made of polypropylene, the inner wall 24 and the outer wall 22 each having a thickness of approximately 1 mm, the side walls 20, 26 facing the panes each having a thickness of approximately 2.5 mm. The diffusion-proof layer 60 which is integrally connected to the outside of the profile consists of a tinplate with a thickness of 0.125 mm. Overall, the profile weight is about 85 g / m.
Die Wände 20 bis 26 der Kammer 10 des Abstandhalteφrofils sind in dieser Figur als ebene Flächen in rechtwinkliger Anordnung dargestellt. Es liegt im Rahmen der Erfindung, einzelne Wände, insbesondere die Außenwand, mit Abrundungen, Abschrägungen oder anderen modifizierten Formen auszugestalten, wie es bei Abstandhalteφrofilen für Isolierscheibeneinheiten üblich ist, oder die Wände unter von 90° abweichenden Winkeln aneinander angrenzen zu lassen.The walls 20 to 26 of the chamber 10 of the spacer profile are shown in this figure as flat surfaces in a rectangular arrangement. It is within the scope of the invention to design individual walls, in particular the outer wall, with roundings, bevels or other modified shapes, as is customary for spacer profiles for insulating pane units, or to have the walls adjoin one another at angles deviating from 90 °.
In Figur 2 ist eine weitere bevorzugte Ausführungsform dargestellt, in der die Verstärkungselemente als Flachprofile 40 ausgebildet sind. Bei den Flachprofilen 40 handelt es sich um Aluminiumflachprofile mit den Maßen 5,5 x 0,8 mm2. Die Flachprofile 40 erstrecken sich im wesentlichen über die gesamte Höhe der Seitenwände 20 und 26 des Abstandhalteφrofils. Das Abstandhalteφrofil besteht wie bei der in Figur 1 gezeigten Ausfuhrungsform aus Polypropylen mit einer Wanddicke von 1 mm bzw. 2 mm. Die diffusionsdichte Schicht besteht aus einem Weißblech mit einer Dicke von 0,125 mm, so daß sich insgesamt ein ungefähres Pro- filgewicht von 97 g/m ergibt.FIG. 2 shows a further preferred embodiment in which the reinforcing elements are designed as flat profiles 40. The flat profiles 40 are aluminum flat profiles with the dimensions 5.5 x 0.8 mm 2 . The flat profiles 40 extend essentially over the entire height of the side walls 20 and 26 of the spacer profile. As in the embodiment shown in FIG. 1, the spacer profile is made of polypropylene with a wall thickness of 1 mm or 2 mm. The diffusion-proof layer consists of a tinplate with a thickness of 0.125 mm, so that an overall profile weight of 97 g / m results.
In Figur 3 ist eine weitere Ausfuhrungsform dargestellt, in der eine Kombination von Drähten 30 und Winkelprofilen 50 als Verstärkungselemente verwendet wird. Bei den Drähten 30 handelt es sich emeut um Aluminiumdrähte mit einem Durchmesser von 1 ,2 mm, während die Winkelprofile 50 eine Dicke von ungefähr 0,6 mm und Schenkellänge von etwa 2 mm aufweisen. Die Winkelprofile können wie bei dem Ausführungsbeispiel aus Figur 2 ebenfalls aus 10FIG. 3 shows a further embodiment in which a combination of wires 30 and angle profiles 50 is used as reinforcing elements. The wires 30 are again aluminum wires with a diameter of 1.2 mm, while the angle profiles 50 have a thickness of approximately 0.6 mm and a leg length of approximately 2 mm. As in the exemplary embodiment from FIG. 2, the angle profiles can also consist of 10
Aluminium bestehen, es können aber auch andere Materialien als bei den Drähten verwendet werden. Die Winkelprofile können auch aus einem Verbundmaterial bestehen. Femer kann das Winkelprofil in den Bereichen, in denen es zur Anpassung an die Außenkontur der beabstandeten Scheiben gebogen wird, aus anderem Material bestehen oder auch eine andere Dicke aufweisen als in seinen anderen Bereichen, in denen es weitestgehend geradlinig verläuft. Die Winkelprofile 50 entsprechen in ihrer Querschnittsform im wesentlichen der Form der Querschnitts-Eckbereiche des Abstandhalteφrofils. Dadurch wird eine besonders hohe Formstabilität erzielt. Als diffusionsdichte Schicht 60 ist hier ein Edelstahlblech mit einer Dicke von 0,05 mm aufgebracht.Aluminum exist, but other materials than the wires can be used. The angle profiles can also consist of a composite material. Furthermore, the angle profile in the areas in which it is bent to adapt to the outer contour of the spaced disks can consist of a different material or can have a different thickness than in its other areas, in which it runs largely in a straight line. The cross-sectional shape of the angle profiles 50 essentially corresponds to the shape of the cross-sectional corner regions of the spacer profile. This ensures a particularly high level of dimensional stability. A stainless steel sheet with a thickness of 0.05 mm is applied here as diffusion-tight layer 60.
In Figur 4 ist eine weitere Ausführungsform dargestellt, bei der die Verstärkungselemente als Winkelprofile 55 ausgebildet sind, die außen an den Seitenwänden 20, 26 des Abstandhalter- profils angebracht sind und das aus Polypropylen oder PET bestehende Abstandhalteφrofils in diesen Bereichen gleichsam einschließen. Die Winkelprofile 55 bestehen aus Weißblech oder Aluminium und weisen eine Dicke von etwa 0,5 mm auf. Die in die Innenwand 24 und die Außenwand 22 des Abstandhalteφrofils hineinragenden Schenkelbereiche des Winkelprofils weisen eine Länge von etwa 2 mm auf.A further embodiment is shown in FIG. 4, in which the reinforcing elements are designed as angle profiles 55, which are attached to the outside on the side walls 20, 26 of the spacer profile and which, as it were, include spacer profiles made of polypropylene or PET in these areas. The angle profiles 55 consist of tinplate or aluminum and have a thickness of approximately 0.5 mm. The leg regions of the angle profile projecting into the inner wall 24 and the outer wall 22 of the spacer profile have a length of approximately 2 mm.
Die diffusionsdichte Schicht 60 besteht aus 0,05 mm Edelstahl oder einem Weißblech. Femer kann vorgesehen sein, daß als diffusionsdichte Schicht 60 eine Sperrschicht aus Fluoφolymer vorgesehen ist.The diffusion-tight layer 60 consists of 0.05 mm stainless steel or a tinplate. It can also be provided that a barrier layer made of fluoropolymer is provided as the diffusion-tight layer 60.
Die diffusionsdichte Schicht 60 erstreckt sich in dem Ausführungsbeispiel nach Figur 4 über die gesamte Außenwand 22 des Abstandhalteφrofils, bei den Ausführungsbeispielen nach den Figuren 1 und 2 zusätzlich über die gesamte Seitenwände 20, 26, während bei der in Figur 3 gezeigten Ausfuhrungsform keine gesonderte diffusionsdichte Schicht vorgesehen ist.In the exemplary embodiment according to FIG. 4, the diffusion-tight layer 60 extends over the entire outer wall 22 of the spacer profile, in the exemplary embodiments according to FIGS. 1 and 2 additionally over the entire side walls 20, 26, while in the embodiment shown in FIG. 3 no separate diffusion-tight layer is provided.
Die in der vorstehenden Beschreibung, den Zeichnungen sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung wesentlich sein. 1 1The features of the invention disclosed in the above description, the drawings and in the claims can be essential both individually and in any combination for the implementation of the invention. 1 1
BezugszeichenlisteReference list
Kammerchamber
hygroskopisches Materialhygroscopic material
PerforationenPerforations
Seitenwände der Kammer des AbstandhalteφrofilsSide walls of the chamber of the spacer profile
vom Scheibenzwischenraum abgewandte Außenwand des Abstandhalteφrofilsouter wall of the spacer profile facing away from the space between the panes
dem Scheibenzwischenraum zugewandte Innenwand des Abstandhalteφrofilsthe inner wall of the spacer profile facing the space between the panes
KleberGlue
als Drähte ausgebildete Verstärkungselementereinforcement elements designed as wires
als Flachprofile ausgebildete Verstärkungselementereinforcement elements designed as flat profiles
als Winkelprofile ausgebildete Verstärkungselementereinforcement elements designed as angle profiles
als Winkelprofile ausgebildete Verstärkungselementereinforcement elements designed as angle profiles
diffusionsdichte Schichtdiffusion-proof layer
ScheibenSlices
Scheibenzwischenraum Space between panes

Claims

12Patentansprüche 12 Patent claims
1. Abstandhalteφrofil aus einem elastisch-plastisch verformbaren, schlecht wärmeleitenden Material für einen Abstandhalterrahmen, der im Randbereich von mindestens zwei voneinander beabstandeten Scheiben (100), insbesondere transparenten Scheiben für Isolierscheibeneinheiten, unter Bildung eines Scheibenzwischenraumes (110) anzubringen ist, wobei das Abstandhalteφrofil eine Kammer umfaßt, die in einer ihrer Wände ein sich in Längsrichtung des Profils erstreckendes plastisch verformbares Verstärkungselement aufweist, wobei das Abstandhalteφrofil eine sich im wesentlichen über seine gesamte Breite und Länge erstreckende diffusionsdichte Schicht aufweist,1.Spacer profile made of an elastically-plastically deformable, poorly heat-conducting material for a spacer frame, which is to be attached in the edge region of at least two spaced-apart panes (100), in particular transparent panes for insulating pane units, to form a pane spacing (110), the spacer profile being one Comprises a chamber which has in one of its walls a plastically deformable reinforcing element which extends in the longitudinal direction of the profile, the spacer profile having a diffusion-tight layer which extends essentially over its entire width and length,
dadurch gekennzeichnet, daßcharacterized in that
die Seitenwände (20, 26) der Kammer (10) jeweils mit mindestens einem Verstärkungselement (30, 40, 50, 55) versehen sind.the side walls (20, 26) of the chamber (10) are each provided with at least one reinforcing element (30, 40, 50, 55).
2. Abstandhalteφrofil nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (10) ganz oder teilweise mit einem hygroskopischen Material gefüllt ist und daß die Kammer (10) zum Scheibenzwischenraum (1 10) hin wasserdampfdurchlässige Bereiche (14) aufweist.2. Spacer profile according to claim 1, characterized in that the chamber (10) is completely or partially filled with a hygroscopic material and that the chamber (10) to the space between the panes (1 10) has water vapor permeable areas (14).
3. Abstandhalteφrofil nach Anspruch 1, dadurch gekennzeichnet, daß es einen zum Scheibenzwischenraum (110) hin offenen U-förmigen Querschnitt aufweist.3. Spacer profile according to claim 1, characterized in that it has a U-shaped cross-section open towards the pane space (110).
4. Abstandhalteφrofil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Verstärkungselemente Drähte (30) vorgesehen sind.4. Spacer profile according to one of the preceding claims, characterized in that wires (30) are provided as reinforcing elements.
5. Abstandhalteφrofil nach Anspruch 4, dadurch gekennzeichnet, daß der Durchmesser der Drähte weniger als 3 mm, bevorzugt ungefähr 1 mm, beträgt. 135. Spacer profile according to claim 4, characterized in that the diameter of the wires is less than 3 mm, preferably approximately 1 mm. 13
6. Abstandhalteφrofil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß als Verstärkungselemente Flachprofile (40) oder Winkelprofile (50, 55) vorgesehen sind.6. Spacer profile according to one of the preceding claims, characterized in that flat profiles (40) or angle profiles (50, 55) are provided as reinforcing elements.
7. Abstandhalteφrofil nach Anspruch 6, dadurch gekennzeichnet, daß die Flachprofile (40) oder Winkelprofile (50, 55) eine Dicke von weniger als 3 mm, bevorzugt eine Dicke von weniger als 1 mm, aufweisen.7. Spacer profile according to claim 6, characterized in that the flat profiles (40) or angle profiles (50, 55) have a thickness of less than 3 mm, preferably a thickness of less than 1 mm.
8. Abstandhalteφrofil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Verstärkungselemente (30, 40, 50, 55) aus Metall oder einer Metall-Legierung bestehen, bevorzugt aus Aluminium oder einer Aluminiumlegierung.8. Spacer profile according to one of the preceding claims, characterized in that the reinforcing elements (30, 40, 50, 55) consist of metal or a metal alloy, preferably of aluminum or an aluminum alloy.
9. Abstandhalteφrofil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Verstärkungselemente (30, 50, 55) in Querschnitts-Eckbereichen des Abstandhalteφrofils angeordnet sind.9. Spacer profile according to one of the preceding claims, characterized in that the reinforcing elements (30, 50, 55) are arranged in cross-sectional corner regions of the spacer profile.
10. Abstandhalteφrofil nach Anspruch 9, dadurch gekennzeichnet, daß die als Verstärkungselemente verwendeten Winkelprofile (50, 55) in ihrer Querschnittsform im wesentlichen der Form der Querschnitts-Eckbereiche des Abstandhalteφrofils entsprechen oder selbst diese Querschnitts-Eckbereiche bilden.10. Spacer profile according to claim 9, characterized in that the angle profiles (50, 55) used as reinforcing elements correspond in their cross-sectional shape essentially to the shape of the cross-sectional corner regions of the spacer profile or even form these cross-sectional corner regions.
1 1. Abstandhalteφrofil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Verstärkungselemente (40, 50, 55) sich im wesentlichen über die gesamte Höhe der Seitenwände (20, 26) des Abstandhalteφrofils erstrecken.1 1. Spacer profile according to one of the preceding claims, characterized in that the reinforcing elements (40, 50, 55) extend substantially over the entire height of the side walls (20, 26) of the spacer profile.
12. Abstandhalteφrofil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es aus einem thermoplastischen Kunststoff mit einem Wärmeleitwert λ< 0,3 W/ (m • K), wie Polypropylen, Polyethylenterephthalat, Polyamid oder Poly- carbonat, besteht. 1412. Spacer profile according to one of the preceding claims, characterized in that it consists of a thermoplastic with a thermal conductivity λ <0.3 W / (m • K), such as polypropylene, polyethylene terephthalate, polyamide or polycarbonate. 14
13. Abstandhalteφrofil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die diffusionsdichte Schicht (60) aus einem Material mit einem Wärmeleitwert λ < 50 W/( m • K) besteht.13. Spacer profile according to one of the preceding claims, characterized in that the diffusion-tight layer (60) consists of a material with a thermal conductivity λ <50 W / (m • K).
14. Abstandhalteφrofil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die diffusionsdichte Schicht (60) auf der Außenseite der Kammer (10) angeordnet ist. 14. Spacer profile according to one of the preceding claims, characterized in that the diffusion-tight layer (60) is arranged on the outside of the chamber (10).
EP99908747A 1998-02-11 1999-01-21 Profiled spacer for an insulation-plate unit Expired - Lifetime EP1055046B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19805348A DE19805348A1 (en) 1998-02-11 1998-02-11 Spacer profile for insulating washer unit
DE19805348 1998-02-11
PCT/DE1999/000188 WO1999041481A1 (en) 1998-02-11 1999-01-21 Profiled spacer for an insulation-plate unit

Publications (3)

Publication Number Publication Date
EP1055046A1 true EP1055046A1 (en) 2000-11-29
EP1055046B1 EP1055046B1 (en) 2002-05-08
EP1055046B2 EP1055046B2 (en) 2007-09-26

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ID=7857239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99908747A Expired - Lifetime EP1055046B2 (en) 1998-02-11 1999-01-21 Profiled spacer for an insulation-plate unit

Country Status (11)

Country Link
US (1) US6389779B1 (en)
EP (1) EP1055046B2 (en)
JP (1) JP3409030B2 (en)
CN (1) CN1132991C (en)
AT (1) ATE217382T1 (en)
AU (1) AU2824999A (en)
CA (1) CA2316166C (en)
DE (2) DE19805348A1 (en)
DK (1) DK1055046T4 (en)
ES (1) ES2153810T5 (en)
WO (1) WO1999041481A1 (en)

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Also Published As

Publication number Publication date
ES2153810T5 (en) 2008-03-01
AU2824999A (en) 1999-08-30
CN1132991C (en) 2003-12-31
DK1055046T3 (en) 2002-07-08
CN1289387A (en) 2001-03-28
DK1055046T4 (en) 2008-01-02
DE19805348A1 (en) 1999-08-12
JP3409030B2 (en) 2003-05-19
ATE217382T1 (en) 2002-05-15
EP1055046B1 (en) 2002-05-08
WO1999041481A1 (en) 1999-08-19
ES2153810T1 (en) 2001-03-16
EP1055046B2 (en) 2007-09-26
ES2153810T3 (en) 2002-11-01
US6389779B1 (en) 2002-05-21
CA2316166A1 (en) 1999-08-19
JP2002503779A (en) 2002-02-05
CA2316166C (en) 2006-09-12
DE59901396D1 (en) 2002-06-13

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