EP3162999B1 - Profilé d'écartement et ensemble vitrage isolant avec un tel profilé d'écartement - Google Patents

Profilé d'écartement et ensemble vitrage isolant avec un tel profilé d'écartement Download PDF

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Publication number
EP3162999B1
EP3162999B1 EP16183387.6A EP16183387A EP3162999B1 EP 3162999 B1 EP3162999 B1 EP 3162999B1 EP 16183387 A EP16183387 A EP 16183387A EP 3162999 B1 EP3162999 B1 EP 3162999B1
Authority
EP
European Patent Office
Prior art keywords
wall
diffusion barrier
layer
thickness
diffusion
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.)
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Application number
EP16183387.6A
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German (de)
English (en)
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EP3162999A2 (fr
EP3162999A3 (fr
Inventor
Peter Cempulik
Jörg LENZ
Petra Sommer
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Technoform Glass Insulation Holding GmbH
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Technoform Glass Insulation Holding GmbH
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Publication date
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Application filed by Technoform Glass Insulation Holding GmbH filed Critical Technoform Glass Insulation Holding GmbH
Priority to PL16183387T priority Critical patent/PL3162999T3/pl
Publication of EP3162999A2 publication Critical patent/EP3162999A2/fr
Publication of EP3162999A3 publication Critical patent/EP3162999A3/fr
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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
    • E06B3/663—Elements for spacing panes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/42—Building elements of block or other shape for the construction of parts of buildings of glass or other transparent material
    • 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
    • E06B3/66304—Discrete spacing elements, e.g. for evacuated glazing units
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • 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
    • E06B3/667—Connectors therefor
    • 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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/12—Measures preventing the formation of condensed water
    • 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

Definitions

  • the present invention relates to a spacer profile for use in insulating disk units with such a spacer profile and an insulating disk unit with such a spacer profile.
  • Insulating washer units with at least two washers 151, 152, which are held at a distance from one another in the insulating washer unit, are known (see FIG. 16 ).
  • the panes 151, 152 are normally formed from inorganic or organic glass or from other materials such as plexiglass.
  • the spacing of the panes 151, 152 is normally ensured by a spacer frame 150 which is formed from at least one composite material spacer profile 100.
  • Composite spacer profiles which are also referred to as composite spacer profiles, are made from a plastic profile and a metal layer as a diffusion barrier, for example in the DE 198 32 731 A1 (Family member WO 2000/005475 A1 ), the EP 0 953 715 A2 (Family member U.S. 6,196,652 ) or the EP 1 017 923 A1 (Family member U.S. 6,339,909 ) shown.
  • the space between the panes 153 is preferably filled with an insulating inert gas, such as argon, krypton, xenon, etc., for example.
  • the filling gas should not be able to escape from the space 153 between the panes, even over a long period of time.
  • the ambient air, or components of it, such as nitrogen, oxygen, water, etc. should also not be able to penetrate into the space 153 between the panes.
  • the spacer profile 100 must be designed in such a way that diffusion between the pane interior 153 and the environment is prevented. Spacer profiles therefore have a diffusion barrier 157 which prevents diffusion of the filling gas from the space between the panes 153 into the environment through the spacer profile 100.
  • the heat transfer of the edge bond ie the bond of the edge of the insulating disk unit, the disks 151, 152 and the spacer frame 150, plays a very important role in achieving low heat conduction in these insulating disk units.
  • Insulating pane units which ensure a high level of thermal insulation in the edge seal, meet the so-called "warm edge” condition according to the meaning of the term in technology.
  • the spacer profiles 100 should therefore have good thermal insulation.
  • the spacer frame 150 is preferably bent from a one-piece spacer profile 100. To close the frame 150, the two ends of the spacer profile 100 are connected by means of a connector. If the spacer frame 150 is assembled from several spacer profile pieces 100, several connectors are also necessary. In terms of both manufacturing costs and insulating properties, it is preferred to provide only one connection point.
  • the frame 150 from the spacer profile 100 is bent, for example, by cold bending (at a room temperature of approximately 20 ° C.). The problem of wrinkling occurs at the bends.
  • the spacer profile should be able to be bent with as little wrinkling as possible and at the same time also have high strength and flexural rigidity.
  • Spacers are also known which have a comparatively thin continuous reinforcing layer made of metal material on the profile body made of plastic. Such spacers lose their diffusion tightness when bent by 90 ° and have comparatively thick plastic profile walls so that they do not sag too much.
  • a spacer profile is known, the profile body of which consists of poorly heat-conducting material and is connected to a diffusion-tight layer of material that is a good heat conductor extending essentially over its entire width.
  • the diffusion-tight layer made of material with good thermal conductivity has an area extending in the longitudinal direction of the spacer profile with reduced heat conduction transversely to the longitudinal direction of the spacer profile.
  • the DE 198 32 731 A1 a spacer profile for use in a spacer frame of an insulating pane unit for door or window or facade elements, which has panes with a space between them, with a hollow profile body made of a plastic material with a chamber for receiving hygroscopic material, which extends in a longitudinal direction, and the one inner wall, which in the assembled state of the insulating washer unit faces in the direction of the space between the panes of the insulating washer unit and delimits the chamber, on the side of the chamber opposite the inner wall in a height direction that is perpendicular to the longitudinal direction, an outer wall and laterally in a transverse direction, which is perpendicular to the longitudinal direction and to the height direction, has a first side wall and opposite a second side wall which are connected to the inner wall and the outer wall to form the chamber, a first reinforcement layer made of a first metal material with a first specific thermal conductivity, which extends in one piece on the first side wall with a constant cross section per
  • a spacer profile which consists of a poorly thermally conductive material and has reinforcing elements in its walls.
  • a diffusion barrier layer made of tinplate is applied to an outer wall of the spacer profile.
  • the DE 198 05 348 A1 a spacer profile for use in a spacer frame of an insulating pane unit for door or window or facade elements, which has panes with a space between them, with a hollow profile body with a chamber for receiving hygroscopic material, which extends in a longitudinal direction, and the one inner wall made of a plastic material, which in the assembled state of the insulating washer unit faces in the direction of the space between the panes of the insulating washer unit and delimits the chamber on which the inner wall in a height direction which is perpendicular to the longitudinal direction, the opposite side of the chamber an outer wall and laterally in a transverse direction that is perpendicular to the longitudinal direction and to the height direction, a first side wall made of a plastic material and opposite a second side wall made of a plastic material, which are connected to the inner wall and the outer wall to form the chamber, a first reinforcement layer made of a first metal material with a first specific thermal conductivity, which extends in one piece
  • the DE 195 30 838 A1 discloses further spacer profiles.
  • One object of the invention is to provide an improved spacer profile in which, in particular, the thermal insulation is improved with good strength or flexural rigidity and good wrinkle-forming properties when bending.
  • An insulating washer unit with such spacer profiles is another object of the invention.
  • the diffusion tightness is ensured on the one hand by a diffusion barrier, which is formed from the two reinforcement layers and the diffusion barrier layer.
  • the hollow profile body can also be made at least partially from a diffusion-tight plastic material, for example an EVOH material, which ensures the diffusion-tightness.
  • a diffusion barrier layer is formed between the reinforcement layers, namely the part of the outer wall located between the reinforcement layers. Significantly less heat is transferred through the diffusion barrier layer than through the reinforcement layers.
  • the spacer profile with the two reinforcement layers separated from one another, which are connected to one another in a central area by means of a diffusion barrier layer has a significantly lower thermal conductivity than a comparable conventional spacer profile while maintaining the same diffusion tightness.
  • the spacer profile becomes stiffer and stronger. Furthermore, material can be saved, as a result of which manufacturing costs and weight can be reduced.
  • the diffusion barrier layer can be positioned approximately on the neutral fiber when the spacer is bent (the zone of the material that does not experience any expansion or compression during bending) of the spacer profile. Therefore, essentially no tensile stresses act on the diffusion barrier layer during bending. For this reason, a diffusion barrier layer can be used which has to absorb little or no tensile forces. In addition, the diffusion barrier layer can easily be applied to the spacer profile.
  • a spacer profile 1 according to a first embodiment is described below with reference to FIG FIG. 3a ) described.
  • the spacer profile 1 is in the FIG. 3a ) shown in cross section perpendicular to a longitudinal direction Z, that is, in section in an XY plane, which is defined by a transverse direction X, which is perpendicular to the longitudinal direction Z, and a height direction Y, which is perpendicular to the transverse direction X and the longitudinal direction Z, is stretched.
  • the spacer profile 1 extends in the embodiment in the longitudinal direction Z with a The plane of symmetry L, which is arranged centrally with respect to the transverse direction X and runs parallel to the longitudinal direction Z and the height direction Y.
  • the spacer profile 1 has a hollow profile body 10 made of a plastic material, which extends in the longitudinal direction Z with a constant cross-sectional shape and has a first width b1 in the transverse direction X and a first height h1 in the height direction Y.
  • the hollow profile body 10 has an inner wall 12 in its height direction Y and an outer wall 14 on the side opposite the inner wall 12 in the height direction Y.
  • the outer edges in the transverse direction X of the inner wall 12 and the outer wall 14 are each connected to one another by a side wall 16, 18 which runs essentially parallel to the vertical direction Y.
  • the first side wall 16 lies opposite the second side wall 18 in the transverse direction X.
  • the plane of symmetry L runs essentially parallel to the side walls 16, 18 and is arranged centrally between them.
  • a chamber 20 is formed or delimited by the inner wall 12, the first side wall 16, the outer wall 14 and the second side wall 18, which are connected to one another.
  • the first side wall 16, the second side wall 18 and the outer wall 14 each have a first wall thickness s1.
  • the inner wall 12 has a second wall thickness s2.
  • the transitions or connecting sections of the side walls 16, 18 to the outer wall 14 are each rounded in accordance with the first embodiment in the cross-sectional view, here essentially in the form of a quarter circle.
  • the two side walls 16, 18 and the outer wall 14 therefore create a U-shape (U-configuration) on which the inner wall 12 is placed as a cover.
  • the transitions or connecting sections between the side walls 16, 18 and the inner wall 12 are therefore essentially rectangular in cross section to the longitudinal direction Z, with a rounded connecting section on the side facing the chamber 20.
  • the hollow profile body 10 is preferably produced integrally by extrusion.
  • the outer wall 14 is designed to be slightly concave with respect to the chamber 20. That is to say, the outer wall 14 is curved in the direction of the interior of the chamber 20 in the height direction Y to form a curvature 21.
  • the outer wall 14 is in the Center with respect to its edges in the transverse direction X, ie in the area of the plane of symmetry L, arched inwardly by a second height h2 in the direction of the chamber 20.
  • the inner wall 12 is also designed to be slightly concave with respect to the chamber 20. That is to say, the inner wall 12 is curved in the direction of the interior of the chamber 20 in the height direction Y to form a curvature 121.
  • the inner wall 12 is curved in the middle with respect to its edges in the transverse direction X, i.e. in the area of the plane of symmetry L, by a third height h3 inwardly in the direction of the chamber 20.
  • the bulges 21 are preferably already formed in the plastic during the extrusion. However, they can also be formed directly after extrusion or in a subsequent roll forming process.
  • two reinforcement layers 22, 24 extend directly on the hollow profile body 10 on a large part of the outer surfaces of the side walls 16, 18 facing away from the chamber 20 and on part of the outer side of the outer wall 14 facing away from the chamber continuously in the longitudinal direction Z with a constant cross-section directly on the outside of the first side wall 16 (facing away from the chamber) from just below the inside wall 12 to and directly on the part of the outside of the outside wall 14 (facing away from the chamber) facing the first side wall 16.
  • a second reinforcement layer 24 extends in one piece and continuously in the longitudinal direction Z with a constant cross section directly on the outer side of the second side wall 18 (facing away from the chamber) from just below the inner wall 12 to and directly on the part of the (the Chamber facing away) outside e of the outer wall 14.
  • the first reinforcement layer 22 is made of a first diffusion-tight metal material with a first specific thermal conductivity and the second reinforcement layer 24 is made of a second diffusion-tight metal material with a second specific thermal conductivity ⁇ 2 .
  • both vapor diffusion and gas diffusion tightness for the gases in question for example nitrogen, oxygen, Water, etc., especially argon.
  • the materials used are impervious to gas or vapor diffusion if, preferably, no more than 1% of the gases in the space 153 between the panes can escape within one year.
  • Diffusion-tight is also to be equated with low-diffusion in the sense that the corresponding test standard EN 1279 Part 2 + 3 is preferably fulfilled. This means that the finished spacer profile preferably fulfills the test standard EN 1279 Part 2 + 3.
  • the first and second reinforcement layers 22, 24 do not touch.
  • the reinforcement layers 22, 24 are designed and arranged in such a way that they are spaced apart from one another by a first distance a1 with respect to the transverse direction X. That is, between the reinforcement layers 22, 24, on the outside of the outer wall 14, an area 25 which is central with respect to the transverse direction X and which extends in the transverse direction X over the first distance a1 remains free.
  • the central region 25 has a second width b2 in the transverse direction X, which corresponds to the first distance a1. No reinforcement layer is formed or arranged in or on this central region 25.
  • the reinforcement layers 22, 24 in this embodiment extend symmetrically with respect to the plane of symmetry L, so that the first reinforcement layer 22 and the second reinforcement layer 24 each have a distance a 1/2 to the plane of symmetry L.
  • the reinforcement layers 22, 24 are materially connected directly to the corresponding walls.
  • a direct connection without further intermediate layers is meant in the following description.
  • the first reinforcement layer 22 has a constant first thickness d1.
  • the second reinforcement layer 24 has a constant second thickness d2.
  • the first width b1 does not change since the hollow profile body 10 in this embodiment is formed at the edges in the transverse direction X in such a way that the reinforcement layers 22, 24 do not increase the first width b1. In other words, the area of the side walls 16, 18 on which no reinforcement layers 22, 24 are formed is formed correspondingly wider.
  • the reinforcement layers 22, 24 have profiled extension sections 28 on their end regions opposite the outer wall 14 in the vertical direction Y, which extend in the longitudinal direction Z.
  • the extension sections 28 extend the reinforcement layers 22, 24 in the height direction Y from just below the inner wall 12.
  • profiled means in this context that the extension section 28 is not exclusively a linear extension of the respective reinforcement layer 22, 24 in the height direction Y , but rather that in the two-dimensional representation of the cross-section in the XY plane, a two-dimensional profile is formed which has, for example, one or more bends 29 of the extension section 28.
  • the extension sections 28 have a 90 ° bend 29 in the direction of the plane of symmetry L into the inner wall 12 at the level of the inner wall 12. That is, the extension section 28 protrudes into the inner wall 12. It also has a groove 30 in the two-dimensional representation of the cross section in the X-Y plane.
  • the extension section 28 protrudes with a first length l1 in the transverse direction X from the outside of the corresponding side wall 16, 18 of the hollow profile body 10 into the inner wall 12.
  • the extension sections 28 serve for improved bending behavior and improved adhesion of the reinforcement layers 22, 24 on or in the hollow profile body 10. It is preferred if the extension sections 28 as close as possible to the outside of the inner wall 12 facing away from the chamber 20 (as close as possible to the space between the panes 53), but covered by the material of the inner wall 12.
  • the extension sections 28 are each received in a receiving area 31.
  • Such a receiving area 31 is formed by the inner wall 12 and / or side wall 16, 18 and extends from the outside of the inner wall 12 in the same and possibly the corresponding side wall 16, 18 over a height in the height direction Y which is less than 0, 4 is h1, more preferably less than 0.2 h1, and more preferably less than 0.1 h1.
  • the specified height of the receiving areas 31 also defines the beginning of the extension sections 28.
  • the receiving areas 31 In the transverse direction X, the receiving areas 31 have at least the thickness s1 of the side walls 16, 18.
  • the receiving areas preferably extend from the outer surface of the side walls 16, 18 facing away from the chamber over a width ⁇ 1.5 11, more preferably over a width ⁇ 1.2 11 and even more preferably over a width of 1.1 l1 in the transverse direction X.
  • the inner wall 12 and / or the side walls 16, 18 can have an increased wall thickness in the area of the receiving areas 31. This is exemplified in the FIG. 5, 6 , 8 and 10 shown.
  • the mass of the respective extension section 28 is preferably at least 10% of the mass of the remaining part of the respective reinforcing layer 22, 24, which is located above the center line of the spacer profile 1 in the height direction Y, preferably at least about 20%, more preferably at least 50%, and still more preferably at least 100%.
  • a diffusion barrier layer 26 is preferably made of one third diffusion-tight metal material with a third specific thermal conductivity ⁇ 3 applied directly.
  • the diffusion barrier layer 26 can, however, also be formed from another diffusion-tight material, for example a diffusion-tight plastic material.
  • a plastic material is, for example, an ethylene-vinyl alcohol copolymer, which is also referred to as EVOH.
  • the EVOH material from NIPPON GOSHEI sold under the name “SoarnoL” is preferably used.
  • the diffusion barrier layer 26 is formed from a plurality of layers.
  • the layers comprise at least a first layer made of EVOH material and a second layer made of polyolefin, for example PE or PP.
  • the first and the second layer are preferably connected by means of an adhesion promoter.
  • the diffusion barrier layer 26 extends in the transverse direction X over the first distance a1 between the first reinforcement layer 22 and the second reinforcement layer 24 and in Longitudinal direction Z with constant cross-sectional shape in a section XY perpendicular to the longitudinal direction L over the entire length of the spacer profile 1.
  • the diffusion barrier layer 26 has a third thickness d3, which in this embodiment is smaller than the first thickness d1 and the second thickness d2.
  • the diffusion barrier layer 26 is connected to the first reinforcement layer 22 and the second reinforcement layer 24 in a diffusion-tight manner.
  • the diffusion barrier layer 26 is directly connected to the reinforcement layers 22, 24 and the outside of the outer wall 14 in a diffusion-tight manner, for example by vapor deposition, lamination, gluing, welding, sputtering, electroplating or rolling.
  • the diffusion barrier layer 26 is preferably connected directly to the outside of the outer wall 14 in a materially bonded manner. At its edges in the transverse direction X, it is connected to the reinforcement layers 22, 24, for example by means of an adhesion promoter. Alternatively, the edges of the diffusion barrier layer 26 are welded to the edges of the reinforcement layers 22, 24, for example, or are connected directly by vapor deposition.
  • the diffusion barrier layer 26 is therefore directly connected to the outer wall 14 in the region in which the reinforcement layers 22, 24 are not connected to the outer wall 14.
  • the outer wall is therefore completely covered by the reinforcement layers 22, 24 and the diffusion barrier layer 26.
  • the diffusion barrier layer 26 serves to connect the first reinforcement layer 22 to the second reinforcement layer 24 in a diffusion-tight manner. At the same time, the diffusion barrier layer 26 serves to thermally isolate the first reinforcement layer 22 from the second reinforcement layer 24.
  • the thermal conduction through the diffusion barrier layer 26 is less than that through the reinforcement layers 22, 24.
  • the thermal conduction, ie the thermal conductivity depends on the geometry and specific thermal conductivity of a component.
  • the diffusion barrier layer 26 is designed such that the product of the third thickness d3 and the specific third thermal conductivity ⁇ 3 of the diffusion barrier layer 26 is both smaller than the product of the first thickness d1 with the first specific thermal conductivity ⁇ 1 of the first reinforcing layer 22, as well as the product of the second thickness d2 with the second specific thermal conductivity ⁇ 2 of the second reinforcement layer 24.
  • This condition does not exclude that the third specific thermal conductivity ⁇ 3 or the third thickness d3 are greater than the corresponding sizes of the reinforcement layers 22, 24, since the size of the Product can be corrected by the other, correspondingly reduced, factor.
  • the spacer profile 1 therefore has a diffusion-tight diffusion barrier 27 which is formed from the first reinforcement layer 22, the diffusion barrier layer 26 and the second reinforcement layer 24 and extends from the first side wall 16 via the outer wall 14 to the second side wall 18.
  • the space between the panes 53 can therefore be delimited in a diffusion-tight manner by the spacer profile 1 in the installed state of the spacer profile 1.
  • the side walls 16, 18 each have a notch 32 on the inside of the respective side wall 16, 18 facing the chamber.
  • the notches 32 are formed below the center line in the height direction Y of the spacer profile 1 and extend in the longitudinal direction Z.
  • the notches 32 serve for improved bending behavior, as will be explained further below.
  • Openings 34 are formed in the inner wall 12, so that the inner wall 12 is not made diffusion-tight regardless of the choice of material for the hollow profile body 10.
  • a gas exchange in particular also an exchange of moisture, between the space 53 and the chamber 20 filled with hygroscopic material can be ensured through the openings 34 of the spacer profile 1.
  • the inner wall 12 is referred to as the inner wall because, when the spacer profile 1 is installed, it faces inward toward a space 53 between the panes (see FIG FIG. 1a ) and b)).
  • the outer wall 14 is referred to as the outer wall because it faces away from the space 53 between the panes when the spacer profile 1 is installed.
  • the side walls 16, 18 are designed as contact webs for contact with the insides of the panes 51, 52, via which the spacer profile 1 is preferably glued to the insides of the panes (see also FIG FIG. 1 ).
  • the chamber 20 is designed to receive hygroscopic material.
  • the spacer profile 1 is preferably made into a one-piece spacer frame 50 by means of four 90 ° bends (see FIG. 2 ) bent. Alternatively, one, two or three bends can also be provided and the possibly remaining 90 ° corners can be formed from corner connectors.
  • the spacer profiles 1 are preferably bent over in a guided cold bending process. For example, the spacer profile 1 is inserted into a groove during bending, which guides or supports the side walls in the transverse direction X. This ensures that the side walls cannot deflect outward in the transverse direction X when they are bent.
  • the inner wall 12 When the spacer profile 1 is bent, the inner wall 12 is normally compressed or shortened.
  • the outer wall 14 is stretched. Between the inner wall 12 and the outer wall 14 there is a neutral zone in which the material of the body is neither stretched nor compressed.
  • the neutral zone is also referred to as the "neutral fiber" of a body.
  • the arched design of the outer wall 14 ensures that the outer wall 14 "folds in” when the spacer profile 1 is bent inwards (see FIG. 15th ). “Folding in” here means that the outer wall 14 is offset in the direction of the chamber 20, that is to say in the direction of the neutral fiber. In addition, when the spacer profile 1 is bent, the notches 32 in the side walls 16, 18 ensure that the outer wall 14 can fold in easily and far inward.
  • the central area 25, which extends over the first distance al (area of the outer wall 14 on which no reinforcing layer 22, 24 is formed is) extends in the transverse direction X, the curvature 21 of the outer wall 14, ie the second height h2, the first and second wall thickness dl, d2 of the reinforcement layers 22, 24, the wall thicknesses s1, s2 of the chamber 20, and the notches 32 so formed that the diffusion barrier layer 26 during the bending process by 90 ° about the bending axis parallel to the transverse direction X, lies essentially on the “neutral fiber” of the spacer profile 1.
  • the diffusion barrier layer 26 is not stretched when it is bent, since the diffusion barrier layer 26 lies on the neutral fiber of the spacer profile 1.
  • the diffusion barrier layer 26 therefore only has to meet very simple mechanical requirements and it can be ensured that the diffusion barrier layer 26 does not tear when bent and thus leaks.
  • the reinforcement layers 22, 24, in particular their thicknesses d1, d2, are designed in such a way that they do not tear when the spacer profile 10 is bent.
  • the diffusion barrier 27 made up of the first reinforcement layer 22, the diffusion barrier layer 26 and the second reinforcement layer 24 therefore remains diffusion-tight even after the bending process.
  • the arched design ensures that it can be "easily” folded in.
  • the inner wall 12 is largely upset.
  • wrinkling can also occur, so that the length becomes correspondingly shorter.
  • the extension sections 28 reduce the formation of wrinkles at the edges in the transverse direction X.
  • the plastic material of the hollow profile body 10 is preferably an elastically-plastically deformable, poorly heat-conducting (insulating) material.
  • the term “elastically-plastically deformable” here preferably means that elastic restoring forces are effective in the material after the bending process, as is typically the case for plastics, but that part of the bending takes place via plastic, non-reversible deformation.
  • the term “poorly thermally conductive” here preferably means that the specific thermal conductivity ⁇ is less than or equal to 0.3 W / (mK).
  • Such a material are preferably polyolefins, more preferably polypropylene, polyethylene terephalate, polyamide, copolyamide or polycarbonate, ABS, SAN, PCABS.
  • An example of such a polypropylene is Novolen 1040®.
  • the material preferably has a modulus of elasticity less than or equal to 2200 N / mm 2 and a specific thermal conductivity ⁇ 0.3 W / (mK), preferably 0.2 W / (mK).
  • the first metal material is preferably a plastically deformable material.
  • the term “plastically deformable” here means that practically no elastic restoring forces act after the deformation. This is typically the case when bending metals beyond the yield point.
  • the preferred first metal material for the reinforcement layer 22 is steel or stainless steel and has a first specific thermal conductivity in the range of 10 W / (mK) ⁇ 1 50 W / (mK), preferably in the range of 10 W / (mK) ⁇ 1 ⁇ 25 W / (mK) and even more preferably in the range of 14 W / (mK) ⁇ ⁇ 1 ⁇ 17 W / (mK).
  • the modulus of elasticity of this material is preferred in the range from 170 kN / mm 2 to 240 kN / mm 2 , more preferably 210 kN / mm 2 .
  • the elongation at break of the material is preferably 15%, more preferably 20%, even more preferably 30% and even more preferably ⁇ 40%.
  • the metal material can have a corrosion protection made of tin (such as tinplate) or zinc, if necessary, if necessary or desired, with a chrome coating or chromate coating.
  • the second metal material of the second reinforcement layer 24 preferably corresponds to the first metal material, but can also be a metal material that differs from the first metal material, especially if the shapes and thicknesses of the two reinforcement layers 22, 24 differ from one another.
  • An example of a reinforcement layer 22, 24 is a stainless steel foil with a thickness d1, d2 of 0.10 mm.
  • the diffusion-tight preferred metal material for the diffusion barrier layer 26 is, for example, steel or stainless steel, vapor-deposited aluminum or sputtered aluminum.
  • the diffusion barrier layer can also be formed from a diffusion-tight multilayer plastic film with a metal coating or a metal layer transfer film. That is to say, the diffusion barrier layer 26 can be formed from plastic with an embedded continuous metal layer.
  • the metal material for the diffusion barrier layer 26 has a specific third thermal conductivity in the range of 10 W / (mK) ⁇ 3 250 W / (mK) and preferably in the range of 14 W / (mK) (stainless steel) ⁇ 3 200 W / (mK) (aluminum).
  • An example of a diffusion barrier layer 26 made of metal is, for example, a stainless steel foil with a thickness d3 of 0.01 mm, an aluminum foil with a thickness d3 of 0.001 mm to 0.01 mm, or a vapor-deposited or sputtered aluminum layer with a thickness d3 of less than 10 nm. It should be noted that the thickness d3 only indicates the thickness of the metal layer. In the case of a diffusion barrier layer made of plastic with an embedded metal layer or a multilayer film, the diffusion barrier layer is correspondingly thicker.
  • the hollow profile body 10 is preferably coextruded together with the first and second reinforcement layers 22, 24.
  • the first and second reinforcement layers 22, 24 are materially connected directly to the hollow profile body 10 after the extrusion process.
  • the first and second reinforcement layers 22, 24 are spaced apart from one another by the first distance a1 in the transverse direction X on the outside of the outer wall 14.
  • the diffusion barrier layer 26 is applied to the central area 25 over the first distance a1 on the outside of the outer wall 14, which is not connected to the reinforcement layer 22, 24, applied in a diffusion-tight manner.
  • the diffusion barrier layer 26 is vapor-deposited, glued, sputtered, laminated or electroplated.
  • the diffusion barrier layer 26 is also connected to the respective reinforcement layer 22, 24 in a diffusion-tight manner. After the diffusion barrier layer 26 has been applied, the first reinforcement layer 22, the diffusion barrier layer 26 and the second reinforcement layer 24 form a continuous diffusion barrier 27.
  • the spacer profile 1 After the spacer profile 1 has been produced, it is shaped in accordance with the shape of the desired spacer frame 50, as exemplified in FIG FIG. 2 is shown bent. During bending, as already described above, the side walls 16, 18 are preferably guided so that they cannot give way in the transverse direction X due to the bending process. After the spacer frame 50 has been bent, the ends must be connected by means of a suitable connector 54 (see FIG FIG. 2 ) get connected. After the spacer profile 1 has been connected, the side walls 16, 18 designed as contact webs are glued to the inside of the panes 51, 52 using an adhesive material (primary sealant) 61, e.g. a butyl sealant based on polyisobutylene (see FIG FIG. 1 ).
  • an adhesive material primary sealant
  • the space 53 between the panes is thus delimited by the two panes 51, 52 and the spacer frame 50.
  • the inside of the spacer frame 50 faces the space 53 between the panes.
  • a mechanically stabilizing sealing material for example based on polysulfide, polyurethane or silicone, is introduced into the remaining space between the insides of the panes to fill the space.
  • This sealing material also protects the diffusion barrier 27 from mechanical and other corrosive / deteriorating influences.
  • the insulating pane unit produced in this way can then be installed in a window frame.
  • the FIG. 3b shows a spacer profile 1 according to a second embodiment.
  • the only difference to the spacer profile 1 according to the first embodiment is that that the reinforcement layers 22, 24 are designed such that the first distance a1 between the reinforcement layers 22 and 24 in the transverse direction X is greater than that in FIG. 3a ) embodiment shown.
  • the first reinforcement layer 22 and the second reinforcement layer 24 are essentially only formed up to the edge regions of the outer wall 14 in the transverse direction X and the diffusion barrier layer 26 extends over the first distance a1, which is greater than in the first embodiment, in the transverse direction X.
  • the diffusion barrier layer 26 lies essentially completely on the neutral fiber of the spacer profile 1.
  • FIG. 4a shows spacer profile 1 according to a third embodiment.
  • the spacer profile 1 according to the third embodiment is designed in a so-called "W configuration".
  • the side walls 16 each have a concave connecting portion 40 to the outer wall 14 when viewed from inside the chamber 20. Since the reinforcement layers 22, 24 run on the outside of the side walls 16, 18 as far as the outside of the outer wall 14, the reinforcement layers 22, 24 also have a corresponding concave connecting section 40.
  • the concave connecting section 40 leads to an elongation of the reinforcement layers 22, 24 with the same first width b1 and first height h1 of the spacer profile 1.
  • the elongated reinforcement layers 22, 24 increase the heat conduction through the reinforcement layers 22, 24 compared to the first embodiment (U-configuration ) reduced despite the same height h1 and width b1.
  • the flexural rigidity of the spacer profile 1 is further improved due to the changed structure. Because of the concave connecting sections 40, the bulge 21 in the outer wall 14 can be dispensed with. When bending, the area which has the diffusion barrier layer folds inwardly in the direction of the chamber 20. The area comprising the diffusion barrier layer 26 lies on the neutral fiber of the spacer.
  • the rest of the spacer profile 1 corresponds to that in FIG. 3a ) shown.
  • the one in the FIG. 4b The fourth embodiment shown differs from that in FIG. 4a ) embodiment shown in that the first distance al compared to the in FIG. 4a ) shown embodiment is enlarged. In this way, the heat conduction can be reduced again.
  • the fifth to twelfth embodiments described below each have, in particular, a diffusion-tight diffusion barrier 27 that consists of the first reinforcement layer 22, the diffusion barrier layer 26 and the second reinforcement layer 24 is formed. Furthermore, in all of the illustrated embodiments, the diffusion barrier layer 26 lies on the neutral fiber of the spacer profile 1 when it is bent about an axis parallel to the transverse direction X. In FIG. 5 to 14 For the sake of simplicity, none of the optional notches 32 and bulges 21, 121 are shown.
  • the extension section 28 has a bend 29 of 90 ° corresponding to the first and second embodiment and an adjoining section (flange) which extends in the transverse direction X from the outer edge of the corresponding side wall 16, 18 via a Length 11 extends inward.
  • the extension section 28 does not have any additional profiling in the form of a groove running in the longitudinal direction Z, but rather runs in a straight line.
  • a spacer profile 1 according to a sixth embodiment is shown in cross section in the XY plane.
  • the sixth embodiment differs from the fifth embodiment in that the extension sections 28 are almost twice as long as in the first embodiment, the extension length 11 in the transverse direction X remaining almost the same.
  • the second bend 29 through 180 ° is formed at a distance 11 from the outside of the corresponding side wall 16, 18, so that the section of the extension section 28 that adjoins the second bend 29 also extends in the transverse direction X, but outwards extends.
  • This means that a much longer extension section is arranged in the inner wall 12 of the spacer profile 1, which results in improved bending properties.
  • part of the material of the hollow profile body 10 is enclosed on three sides by the profiles formed by the extension sections 28.
  • This enclosure has the result that the enclosed material acts as an essentially non-compressible volume element during a bending process with upsetting. This results in an improved flexural behavior or stiffness behavior.
  • FIG. 7a ) and b) a spacer profile 1 according to a seventh embodiment is described, wherein in the FIG. 7c ) and d) those in a) and b) respectively from a circle surrounding areas are shown enlarged.
  • the extension sections 28 do not protrude into the inner wall 12, but are provided on the outside of the inner wall 12.
  • the extension sections 28 are in a position that is very advantageous for the bending behavior, but are visible to a consumer in the installed state.
  • FIG. 8a ) and b) are cross-sectional views of a spacer profile 1 according to an eighth embodiment.
  • the eighth embodiment differs from the fifth embodiment in that the bend 29 is not a 90 ° bend but a 180 ° bend, so that the part of the extension section 28 adjoining the bend 29 extends in the height direction Y.
  • a three-sided enclosure of part of the material of the hollow profile body 10 is achieved, although only one bend 29 is present. This leads to an improved flexural behavior and stiffness retarder.
  • FIG. 9a and b) are cross-sectional views of a spacer profile holder 1 according to a ninth embodiment.
  • the ninth embodiment differs from the eighth embodiment only in that the radius of curvature of the extension sections 28 is smaller than in the eighth embodiment.
  • FIG. 10a ) and b) are cross-sectional views of a spacer profile 1 according to a tenth embodiment.
  • the tenth embodiment differs from the first to ninth embodiments in that the extension sections 28 first make a bend 29 inwards by approx. 45 ° and then a bend 29 by approx. 45 ° in the opposite direction and then a bend 29 by 180 ° with the corresponding three-sided inclusion of part of the material of the hollow profile body 10.
  • the spacer profile 1 or the extension section 28 is curved and / or angled configurations according to FIG FIG. 3 to 10 the length (in the cross section perpendicular to the longitudinal direction) of the extension section 28 and thus the mass of the reinforcement layer additionally introduced in this section or region of the spacer profile can be significantly increased. This results in reduced wrinkling when bending. Furthermore, slack is significantly reduced because the curved, angled and / or folded extension portions add significantly to the strength of the structural integrity of the curved spacer frame.
  • FIG. 11a ) and b) show a spacer profile 1 according to an eleventh embodiment in a W and a U configuration.
  • the spacer profile 1 of this embodiment has no extension sections 28.
  • FIG. 12a ) and b) show a spacer profile 1 according to a twelfth embodiment.
  • This spacer profile 1 differs from that in FIG. 10a ) and b) shown tenth embodiment in that the 180 ° bend 29 and the adjoining part of the extension section 28 are not present.
  • FIG. 13th a further alternative embodiment is shown in a plan view, seen in the Y direction from below.
  • the reinforcement layer 22, 24 has recesses 35 which are separated by transverse webs 36.
  • Each recess is formed centrally between the side walls 16, 18 and has the second width b2 in the transverse direction X.
  • the height of the recesses in the longitudinal direction Z results from a second distance a2 between the transverse webs 36.
  • the transverse webs 36 themselves extend with a second length 12 in the longitudinal direction Z.
  • the transverse webs 36 and the recesses 35 are preferably arranged regularly in the longitudinal direction Z.
  • the reinforcement layer 22, 24 can also have a different thickness / thickness in the height direction Y in the area of the transverse webs 36.
  • the diffusion barrier layer 26 is applied at least to the areas of the outer wall 14 not covered by the reinforcement layers 22, 24 between the transverse webs 36 and the reinforcement layer 22, 24.
  • the diffusion barrier layer can also be applied to the transverse webs 36 to simplify production.
  • the upper load limit in the transverse direction X, or the compressive / tensile force that the spacer profile can withstand in the transverse direction X without deforming or breaking is increased. Furthermore, it can be ensured in a simple manner that the diffusion barrier layer 26 lies in the neutral fiber.
  • FIG. 14th FIG. 12 shows another embodiment, which does not have all of the claimed features, in which the reinforcement layers 22, 24 are completely received in the side walls 16, 18 and partially in the outer wall 14.
  • FIG. 17th shows in a) to d) the fifteenth to nineteenth embodiments.
  • the diffusion barrier layer 266 is not formed from a metal material but from a plastic material.
  • the plastic material is diffusion-tight.
  • a diffusion-tight plastic material is, for example, an ethylene-vinyl alcohol copolymer, which is also referred to as EVOH.
  • EVOH ethylene-vinyl alcohol copolymer
  • Such an EVOH material preferably has a third specific thermal conductivity ⁇ 33 between 0.25 W / (mK) and 0.40 W / (mK).
  • the diffusion barrier layer 266 made of EVOH material can have a greater third thickness d33 compared to the metal material of the previous embodiments and at the same time enable high or higher thermal insulation.
  • the product of the third specific thermal conductivity ⁇ 33 and the third thickness d33 must be smaller than the product of the first specific thermal conductivity ⁇ 1 and the first thickness d1 and smaller than be the product of the second specific thermal conductivity ⁇ 2 and the second thickness d2.
  • the EVOH material from NIPPON GOSHEI sold under the name “SoarnoL” is preferably used.
  • This product is offered with different ethylene contents.
  • “SoarnoL V” 25mol% ethylene
  • “SoarnoL DC” 32mol% ethylene
  • “SoarnoL ET” 38mol% ethylene
  • SoarnoL AT 44mol% ethylene
  • “SoarnoL H” 48mol% ethylene
  • the material sold under the product name “SoarnoL 29 mol%” or “SoarnoL DT” or “SoarnoL D” with 29 mol% ethylene is used even more preferably.
  • the third thickness d33 of the diffusion barrier layer 266 made of EVOH material is substantially greater than the third thickness d3 of the diffusion barrier layer 26 made of metal material in the first to fourteenth embodiments. Because of the greater thickness d33, the diffusion barrier layer 266 is significantly more resistant (more stretch-resistant, more tear-resistant) than the very thin metal layer / foil used in the above embodiments.
  • the spacer profile 1 according to the first to fourteenth embodiment is also formed such that the diffusion barrier layer 266 made of EVOH material lies in the neutral fiber when the spacer profile 1 is bent.
  • the diffusion barrier layers 266 in the fifteenth to nineteenth embodiments extend in the longitudinal direction Z with a constant cross-sectional shape in a section X-Y perpendicular to the longitudinal direction Z over the entire length of the spacer profile and are arranged symmetrically to the plane of symmetry L.
  • the fifteenth embodiment shown extends the diffusion barrier layer 266 in the transverse direction X with a third width b3 over the first distance a1 between the first reinforcement layer 22 and the second reinforcement layer 24.
  • the diffusion barrier layer 266 in this embodiment has a third thickness d33.
  • the diffusion barrier layer 266 is connected to the outer wall 14 directly, for example by coextrusion, lamination or by means of an adhesion promoter in a diffusion-tight manner.
  • the diffusion barrier layer 266 and the outer wall 14 are preferably materially connected.
  • the diffusion barrier layer 266 is also provided with the first and second reinforcing layers at its edges in the transverse direction X, respectively 22, 24 diffusion-tight, for example by means of adhesion promoters or by welding, diffusion-tight, preferably connected in a materially bonded manner.
  • a continuous diffusion barrier 27 is formed by the reinforcement layers 22, 24 and the diffusion barrier layer 266.
  • a substantially continuous plane is created by the diffusion barrier layer 266 and the reinforcement layers 22, 24.
  • the diffusion barrier layer 266 is formed or applied in a "socket-like" or inverted “T" shape in a space between the reinforcement layers 22, 24 on the outer wall 14.
  • the gap extends between the reinforcement layers 22, 24 and is delimited on both sides in the transverse direction X by the edges of the reinforcement layers 22, 24 on the outer wall facing each other in the transverse direction X.
  • the intermediate space is delimited on one side by the outside of the outer wall 14 facing away from the inner wall 12.
  • the diffusion barrier layer 266 has a first region 70 and a second region 71.
  • the first region 70 corresponds to the diffusion barrier layer 266 of the sixteenth embodiment.
  • the width of the first area 70 corresponds to the first distance a1 between the reinforcement layers 22, 24.
  • a fourth thickness d4 of the first area 70 in the height direction Y preferably corresponds to the thickness d1, d2 of the reinforcement layers 22, 24.
  • the second area 71 is formed following the first area, which extends over a third width b3, which is greater than the first distance a1 between the reinforcement layers 22, 24.
  • the second region 71 is formed overlapping with the reinforcement layers 22, 24 over a width (b3-a1) / 2.
  • the second region 71 has a fifth thickness d5.
  • the first area 70 and the second area 71 are integrally formed.
  • the diffusion barrier layer 266 can be coextruded together with the hollow profile body 10 and the reinforcement layers 22, 24. Alternatively, it can also after the application of the reinforcement layers 22, 24, for example by means of an adhesion promoter or through Laminating with the reinforcement layers 22, 24 and / or the outer wall 14 are preferably connected in a diffusion-tight manner.
  • the total height h4 of the spacer profile is in this case (without taking into account the optional curvature 21) the sum of the first h1 of the hollow profile body 10 and the third thickness d33 of the diffusion barrier layer 266.
  • FIG. 17c shows a seventeenth embodiment which, like the sixteenth embodiment, has a diffusion barrier layer 266 with a first region 70 which is formed between the reinforcement layers 22, 24.
  • a second region 71 is not formed on the side of the reinforcement layers 22, 24 facing away from the outer wall 14, but is formed opposite, on the side of the first region 70 facing the outer wall 14.
  • the diffusion barrier layer 266 therefore extends between the reinforcement layers 22, 24 and partially, on the side of the reinforcement layers 22, 24 facing the inner wall 14, between these and the outer wall 14.
  • the widths in the transverse direction X and the thicknesses in the height direction Y of the first Area 70 and the second area 71 preferably correspond to those of the sixteenth embodiment.
  • the areas 72 overlapping with the reinforcement layers 22, 24 thus also have the dimensions of the sixteenth embodiment.
  • the outer wall 14 has a reduced wall thickness (sl-d5) in the region in which the diffusion barrier layer 266 is formed.
  • the second region 71 of the diffusion barrier layer 266 is preferably completely enclosed by the outer wall.
  • the eighteenth embodiment shown) diffusion barrier layer 266 essentially corresponds to the second region 71 of the seventeenth embodiment.
  • the diffusion barrier layer 266 has a third thickness d33 in the height direction Y and a third width b3 in the transverse direction X.
  • the third width b3 is greater than the first distance a1.
  • the diffusion barrier layer 266 has a rectangular cross section, seen in the XY plane, and is completely enclosed by the outer wall 14.
  • the outer wall 14 has therefore a smaller wall thickness (s1-d33) in the area between the reinforcement layers 22, 24.
  • the diffusion barrier layer 266 is arranged symmetrically with respect to the axis of symmetry L such that it is arranged between the reinforcement layers 22, 24 and the outer wall 14 over a width (b3-a1) / 2, i.e. overlaps with the reinforcement layers in the transverse direction X.
  • the diffusion barrier layer 266 is not formed in the plane defined by the edges of the reinforcement layers 22, 24 in the transverse direction X (neglecting the curvature 21) but in the height direction Y in the direction of the inner wall 12 adjacent to this plane.
  • the diffusion barrier layer 266 is formed with a rectangular cross section as viewed in the XY plane.
  • the diffusion barrier layer has a third thickness d33 in the height direction Y and a third width b3 in the transverse direction X.
  • the third width b3 is greater than the first distance al.
  • the wall thickness s1 of the outer wall 14 between the reinforcement layers 22, 24 in the central region 25 on the side facing away from the inner wall 12 is greater by the thickness d1 or d2.
  • the outer wall 14 forms a continuous plane 73 with the reinforcement layers 22, 24 and encloses the reinforcement layers 22, 24 at their edges in the transverse direction X.
  • the diffusion barrier layer 266 is applied or formed symmetrically to the plane of symmetry L on this continuous plane 73.
  • the diffusion barrier layer 266 rests on both the reinforcement layers 22, 24 and the outer wall 14 in the area between the reinforcement layers 22, 24.
  • the ones in the FIGS. 17c), 17d ) and 17e ) diffusion barrier layers 266 shown can be coextruded either with the hollow profile body 10 or with the hollow profile body 10 and the reinforcement layers 22, 24 together. Alternatively, they can be applied before the reinforcement layers 22, 24 are applied to the outer wall 14 by means of adhesion promoters, by lamination, by welding, etc. (see also the first to fourteenth embodiments). Alternatively, they can also, for example, after the reinforcement layers 22, 24 have been applied can be attached by inserting and gluing. At least the reinforcement layers 22, 24 and the diffusion barrier layer 266 are preferably connected to one another in order to form a continuous diffusion barrier layer 27 by coextrusion, by applying adhesion promoters (see above), preferably cohesively and diffusion-tight.
  • FIG. 18th Fig. 10 shows a twentieth embodiment of the present invention.
  • the entire hollow profile body 10 is formed from the diffusion-tight EVOH material.
  • the diffusion barrier layer is formed integrally with the outer wall 14.
  • only the side walls 16, 18 and the outer wall 14 or only the outer wall 14 can be formed from the EVOH material.
  • the wall thickness of the respective walls made of the EVOH material can be up to 2 mm, but preferably corresponds to that of the first to fourteenth embodiments.
  • the diffusion tightness of EVOH material can be negatively influenced by contact with water or water vapor, especially in the case of thin EVOH material.
  • EVOH material can tend to absorb water or water vapor. The absorption can also reduce the diffusion tightness.
  • a two-layer diffusion barrier layer has a first layer of EVOH material (first layer 74).
  • the first layer made of EVOH material is applied or formed on a carrier layer (second layer 75) which has a very low water permeability or is diffusion-tight with respect to water / water vapor.
  • second layer 75 which has a very low water permeability or is diffusion-tight with respect to water / water vapor.
  • the first layer made of EVOH material is protected from contact with water by the second layer.
  • An arrangement is particularly preferred in which the first layer made of the EVOH material is protected from contact with water / water vapor both by the second layer and by the outer wall 14 of the hollow profile body. In this particularly advantageous embodiment, the first layer is therefore arranged between the outer wall 14 and the second layer.
  • polyolefin more preferably PE and even more preferably PP, can be used as the material for the carrier layer.
  • FIG. 19th shows a section of a spacer profile of such a particularly advantageous twenty-first embodiment of the present invention.
  • the detail shows only the outer wall 14 of the spacer profile 1 in the area in which the diffusion barrier layer is arranged between the reinforcement layers 22, 24.
  • This embodiment differs from the other embodiments only in that the diffusion barrier layer 266 is made up of a first layer 74, which is made of a diffusion-tight EVOH material (as above, for example "SoarnoL”), and a second layer 75, which is made of polyolefin, for example PE or PP is formed, is formed.
  • a first layer 74 which is made of a diffusion-tight EVOH material (as above, for example "SoarnoL")
  • a second layer 75 which is made of polyolefin, for example PE or PP is formed
  • the diffusion barrier layer 266 composed of the first and second layers 74, 75 essentially has the shape of the diffusion barrier layer 266 according to the sixteenth embodiment, which is shown in FIG. 17b ) is shown.
  • the first layer 74 corresponding to the first region 70 of the sixteenth embodiment, is formed between the reinforcement layers 22, 24.
  • the second layer 75 is formed or applied to the first layer 74 in accordance with the second region 71 of the sixteenth embodiment and extends at its edges in the transverse direction X partially on the sides of the reinforcement layers 22, 24 facing away from the outer wall 14 a thickness d331 and the second layer has a thickness d332 in the height direction Y.
  • the total thickness d333 preferably corresponds to the thickness d33 but can also be larger or smaller.
  • the first layer 74 and the second layer 75 are preferably connected to one another by means of adhesion promoter 76 applied between the two layers and / or preferably formed with one another by coextrusion.
  • a diffusion barrier is produced by the reinforcement layers 22, 24 and the two-layer diffusion barrier layer 266, which is connected to them in a diffusion-tight manner.
  • the diffusion barrier layer 266 according to the twenty-first embodiment can also have other shapes.
  • it can correspond to the fifteenth through the nineteenth Embodiment be formed. That is to say, the diffusion barrier layers 266 illustrated in the fifteenth to nineteenth embodiments can also each be produced from a first EVOH layer and a second PP or PE layer.
  • the first layer 74 made of EVOH material is preferably arranged between the second layer 75 made of polyolefin and the outer wall 14 in such a way that it is protected from contact with water / water vapor.
  • the first layer 74 and the second layer 75 can also be reversed. In other words, the first layer 74 can be formed on the side of the second layer 75 facing away from the outer wall 14, and the second layer 75 can be applied directly to the outer wall 14.
  • the first layer 74 made of the EVOH material is not protected from water or water vapor in this case.
  • a PP / PE layer can be applied to the diffusion barrier layer 266 made of EVOH material between the reinforcement layers 22, 24 in order to protect the diffusion barrier layer 266 made of EVOH material from contact with water / water vapor.
  • the in FIG. 18th The twentieth embodiment shown can be modified by applying a layer of polyolefin (for example PP or PE) to the outer wall 14 between the reinforcement layers 22, 24. This would protect the walls made of EVOH material from contact with water / water vapor, so that optimal diffusion tightness would be guaranteed.
  • a layer of polyolefin for example PP or PE
  • the reinforcement layers can also be designed asymmetrically to one another with respect to the plane of symmetry L.
  • the first reinforcement layer can be of different thicknesses / strengths with respect to the second reinforcement layer, or can be formed from different materials.
  • the first or the second reinforcement layer can have an extension section, while the other can not have an extension section.
  • the reinforcement layers can also extend only on the side walls and the diffusion barrier layer can extend over the entire outer wall in order to connect the two reinforcement layers.
  • the reinforcement layers can also optionally extend partially in the side walls or the outer wall, but are always connected to the diffusion barrier layer on the outer wall.
  • the first or second reinforcement layer can extend over a larger partial area on the outer wall than the respective other reinforcement layer. That is to say, the distance between the central area and the first side wall can be greater than the distance from the second side wall and vice versa.
  • the central area does not necessarily have to be arranged centrally between the side walls. Due to the non-central arrangement of the central area, the heat conduction through the spacer profile can be reduced. In particular, the heat conduction is reduced if the central area is arranged closer to the "warm", i.e. inner pane.
  • the diffusion barrier layer can be formed in an overlapping manner with the first and / or second reinforcement layer. That is, for example, the diffusion barrier layer 26 shown in the first to thirteenth embodiment, which is applied directly to the outer wall 14 in the central region 25 after extrusion, can also be applied partially to the first and / or second reinforcing layer 22, 24.
  • the diffusion barrier layer can therefore extend in one piece at least partially on the first reinforcement layer and the second reinforcement layer and between the two on the outer wall.
  • the diffusion barrier layer extends only to the area directly on the outer wall which is not covered by the first or second reinforcing layer.
  • a particularly diffusion-tight construction of the connection between reinforcement layers 22, 24 and diffusion barrier layer 26 is formed by an overlap.
  • the side walls or areas thereof can also have areas which are designed in such a way that a notch can be dispensed with. For example, this can be achieved in that the side walls or areas thereof are made thinner than others.
  • the extension sections can optionally also be omitted (see Fig. 11 ).
  • the reinforcement layers can also be applied directly to the hollow profile body after the extrusion of the hollow profile body, for example by means of adhesion promoters or adhesives.
  • the area provided for the reinforcement layer and / or diffusion barrier layer on the hollow profile body can be designed in such a way that after the reinforcement layers and / or the diffusion barrier layer have been applied, there are no shoulders at the edges and transitions between them. That is, the areas to which the reinforcement layers are applied, for example, are already formed as recesses in the hollow profile body when it is extruded.
  • the reinforcement layers and / or diffusion barrier layer are inserted into these cutouts.
  • the hollow profile body can also have a trapezoidal, square, diamond-shaped or other design.
  • the concave bulges can take on other shapes, for example double bulges, asymmetrical bulges, etc.
  • the spacer profile can also be designed such that the side walls do not represent the outermost walls in the transverse direction X for contact with the panes.
  • Such a configuration could be designed as follows, for example: the spacer profile has an inner wall that is wider than the outer wall.
  • the side walls are not connected to the edges of the inner wall in the transverse direction X but are offset somewhat inward in the transverse direction X.
  • the outer wall connected to the side walls, the side walls and the inner wall form the chamber.
  • two further additional (side) outer walls are formed which run parallel to the side walls and serve as contact surfaces for the panes.
  • the reinforcement layers are entirely or partially formed in or on the additional outer walls and the side walls and the inner wall.
  • the diffusion barrier layer connects the reinforcement layers with one another in a diffusion-proof manner.
  • the wall thicknesses sl, s2 of the side walls 22, 24 and / or the outer wall 26 can also be designed differently from one another.
  • the openings 34 can also be asymmetrical to the line of symmetry L, as in FIG Fig. 15 shown, be formed only centrally or only on one side with respect to the transverse direction X.
  • the openings can be arranged regularly or irregularly in the longitudinal direction Z.
  • the openings can be designed in one or more rows with respect to the transverse direction X.
  • a further reinforcing layer made of a metal material can be provided at least partially in or on the inner wall.
  • the extension sections 28 can be bent, angled, etc. in any desired shape or can be designed asymmetrically to one another.
  • the chamber can also be divided into several chambers by partition walls.
  • the cross-section of the reinforcement layers does not necessarily have to be constant, but can also have a profiled shape so that it is even better connected to the hollow profile body. In particular, knobs or grooves can be provided, for example.
  • the notches 32 and bulges 21, 121 shown in the first to fourth embodiment are optional features which can be omitted depending on the configuration of the hollow profile body.
  • the first height h1 of the hollow profile body 10 in the height direction Y is preferably between 10 mm and 5 mm, more preferably between 8 mm and 6 mm, such as 6.85 mm, 7.5 mm and 8 mm.
  • the second height h2 of the bulge 21 in the height direction Y is preferably between 1 mm and 0.05 mm, more preferably between 1 mm and 0.1 mm, such as 0.5 mm, 0.8 mm and 1 mm.
  • the third height h3 of the bulge 121 in the height direction Y is preferably between 1.5 mm and 0.09 mm, more preferably between 0.5 mm and 0.05 mm, even more preferably between 0.3 mm and 0.07 mm, such as e.g. 0.1 mm, 0.12 mm, and 0.15 mm.
  • the first width b1 of the hollow profile body 10 in the transverse direction X is preferably between 40 and 6 mm, more preferably between 20 mm and 6 mm, and even more preferably between 16 mm and 8 mm, such as 8 mm, 12 mm and 15.45 mm.
  • the first distance a1 which corresponds to the second width b2, is preferably between 15 mm and 2 mm, more preferably between 8 mm and 5 mm, such as 5 mm, 6 mm and 8 mm, in the transverse direction X.
  • the third width b3 of the diffusion barrier layer 266 is preferably between 35 mm and 2 mm, even more preferably between 20 mm and 2 mm, even more preferably between 12 and 5 such as 6 mm, 7 mm and 9 mm.
  • the first thickness d1 of the first reinforcing layer 22 made of metal material is preferably between 0.5 mm and 0.01 mm, more preferably between 0.2 mm and 0.01 mm, such as 0.1 mm, 0.05 mm and 0, 01 mm.
  • the second thickness d2 of the second reinforcement layer 24, 124 preferably corresponds to the first thickness d1.
  • the third thickness d3 of the diffusion barrier layer 26 made of metal material is preferably between 0.09 mm and 1 nm, more preferably between 0.02 mm and 5 nm, and even more preferably between 0.01 mm and 10 nm, such as 0.01 mm, 0.001 mm and 10 nm.
  • the third thickness d33 of the diffusion barrier layer 266 made of EVOH material is preferably between 0.01 mm and 2 mm, more preferably between 0.05 mm and 0.8 mm, and even more preferably between 0.1 mm and 0.3 mm, such as e.g. 0.1 mm, 0.2 mm and 0.3 mm.
  • the thickness d331 of the second layer 75 made of PP or PE is preferably between 1.2 mm and 0.1 mm, even more preferably between 1.00 mm and 0.5 mm, such as 0.5 mm, 0.6 mm and 0 , 7 mm.
  • the thickness d332 of the first layer 74 of EVOH material is preferably between 0.01 mm and 2 mm, more preferably between 0.05 mm and 0.8 mm, and even more preferably between 0.1 mm and 0.3 mm, such as e.g. 0.1 mm, 0.2 mm and 0.3 mm.
  • the first length 11 of the extension sections in the transverse direction X is preferably 0.05 b1 ⁇ 11 ⁇ 0.8 b1, more preferably 0.1 b1 ⁇ l1 ⁇ 0.5 b1 and even more preferably 0.1 b1 ⁇ l1 ⁇ 0.2 b1 mm.
  • the first wall thickness s1 of the side walls 16, 18 and the outer wall 14 is preferably between 1.2 mm and 0.2 mm, more preferably between 1.00 mm and 0.5 mm, such as 0.5 mm, 0.6 mm and 0.7 mm.
  • the second wall thickness s2 of the inner wall 12 is preferably between 1.5 mm and 0.5 mm, such as 0.7 mm, 0.8 mm, 0.9 mm and 1 mm.
  • the first length 11 in the transverse direction X is smaller than b1 / 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Wing Frames And Configurations (AREA)

Claims (12)

  1. Profilé d'écartement pour l'utilisation dans un cadre d'écartement (50) d'une unité de vitrage isolant pour des éléments de porte ou fenêtre ou façade, qui présente des vitres (51, 52) avec un espace intermédiaire (53) entre elles, avec
    un corps profilé creux (10) en un matériau plastique avec une chambre (20) pour la réception de matériau hygroscopique,
    - qui s'étend dans un sens longitudinal (Z), et
    - qui présente une paroi intérieure (12), qui est dirigée, à l'état assemblé de l'unité de vitrage isolant, en direction de de l'espace intermédiaire (53) entre les vitres (51, 52) de l'unité de vitrage isolant et délimite la chambre, sur le côté de la chambre (20) en regard de la paroi intérieure (12) dans un sens vertical (Y) qui est perpendiculaire au sens longitudinal Z, une paroi extérieure (14) et latéralement dans un sens transversal (X), qui est perpendiculaire au sens longitudinal (Z) et au sens vertical (Y), une première paroi latérale (16) et en face une seconde paroi latérale (18), qui sont reliées à la paroi intérieure (12) et à la paroi extérieure (14) pour la formation de la chambre (20),
    une première couche de renforcement (22) en un premier matériau métallique avec une première conductivité thermique spécifique (λ1), qui s'étend d'un seul tenant sur et/ou dans la première paroi latérale (16) avec une section transversale constante perpendiculairement et dans le sens longitudinal (Z) et présente une première épaisseur (d1),
    une seconde couche de renforcement (24) en un second matériau métallique avec une deuxième conductivité thermique spécifique (λ2), qui s'étend d'un seul tenant sur et/ou dans la seconde paroi latérale (18) avec une section transversale constante perpendiculairement et dans le sens longitudinal (Z) avec une première distance (a1) par rapport à la première couche de renforcement (22), et présente une deuxième épaisseur (d2) et
    une couche de barrage à la diffusion (266) réalisée en au moins une première couche (74) d'un matériau plastique étanche à la diffusion avec une troisième épaisseur (d33) et une troisième conductivité thermique spécifique (λ33), qui est réalisée sur la paroi extérieure (14) au moins entre la première couche de renforcement (22) et la seconde couche de renforcement (24) et est reliée de manière étanche à la diffusion à celles-ci pour la formation d'un barrage à la diffusion (27),
    pour lequel
    le produit de la troisième conductivité thermique spécifique (λ33) et de la troisième épaisseur (d33) est inférieur au produit de la première conductivité thermique spécifique (λ1) et de la première épaisseur (d1) et est inférieur au produit de la deuxième conductivité thermique spécifique (1,2) et de la deuxième épaisseur (d2), et
    la couche de barrage à la diffusion (266) est réalisée en chevauchement avec la première et la seconde couche de renforcement (22, 24).
  2. Profilé d'écartement selon la revendication 1, pour lequel
    le matériau plastique étanche à la diffusion est un matériau plastique EVOH étanche à la diffusion.
  3. Profilé d'écartement selon la revendication 1 ou 2, pour lequel
    le corps profilé creux (10) et la couche de barrage à la diffusion (266) sont fabriqués intégralement en matériau plastique étanche à la diffusion, ou
    seulement les parois latérales (16, 18) et la paroi extérieure (14) et la couche de barrage à la diffusion (266) sont fabriqués intégralement en matériau plastique étanche à la diffusion, ou
    seulement la paroi extérieure (14) et la couche de barrage à la diffusion (266) sont fabriquées intégralement en matériau plastique étanche à la diffusion.
  4. Profilé d'écartement selon l'une quelconque des revendications 1 à 3, pour lequel
    la troisième épaisseur (d33) de la couche de barrage à la diffusion (266) est supérieure à la première épaisseur (d1) de la première couche de renforcement (22) et/ou supérieure à la deuxième épaisseur (d2) de la seconde couche de renforcement (24).
  5. Profilé d'écartement selon l'une quelconque des revendications 1 à 4, pour lequel
    la couche de barrage à la diffusion (266) n'est pas réalisée entre la première couche de renforcement (22) et/ou la seconde couche de renforcement (24) et le corps profilé creux (10).
  6. Profilé d'écartement selon l'une quelconque des revendications 1 à 5, pour lequel
    la couche de barrage à la diffusion (266) s'étend partiellement sur le coté des couches de renforcement (22, 24) tourné vers la paroi intérieure (14) entre les couches de renforcement (22, 24) et la paroi extérieure (14).
  7. Profilé d'écartement selon l'une quelconque des revendications 1 à 6, pour lequel
    la couche de barrage à la diffusion (266) s'étend sur une partie tournée vers la seconde couche de renforcement (24) de la première couche de renforcement (22) et/ou une partie tournée vers la première couche de renforcement (22) de la seconde couche de renforcement (24) perpendiculairement et dans le sens longitudinal.
  8. Profilé d'écartement pour l'utilisation dans un cadre d'écartement (50) d'une unité de vitrage isolant pour des éléments de porte ou fenêtre ou façade, qui présente des vitres (51, 52) avec un espace intermédiaire (53) entre elles, avec
    un corps profilé creux (10) avec une chambre (20) pour la réception de matériau hygroscopique,
    - qui s'étend dans un sens longitudinal (Z), et
    - qui présente une paroi intérieure (12) en un matériau plastique, qui est dirigée, à l'état assemblé de l'unité de vitrage isolant, en direction de de l'espace intermédiaire (53) entre les vitres (51, 52) de l'unité de vitrage isolant et délimite la chambre, sur le côté de la chambre (20) en regard de la paroi intérieure (12) dans un sens vertical (Y) qui est perpendiculaire au sens longitudinal Z, une paroi extérieure (14) et latéralement dans un sens transversal (X), qui est perpendiculaire au sens longitudinal (Z) et au sens vertical (Y), une première paroi latérale (16) en un matériau plastique et en face une seconde paroi latérale (18) en un matériau plastique, qui sont reliées à la paroi intérieure (12) et à la paroi extérieure (14) pour la formation de la chambre (20),
    une première couche de renforcement (22) en un premier matériau métallique avec une première conductivité thermique spécifique (λ1), qui s'étend d'un seul tenant sur et/ou dans la première paroi latérale (16) avec une section transversale constante perpendiculairement et dans le sens longitudinal (Z) et présente une première épaisseur (d1), et
    une seconde couche de renforcement (24) en un second matériau métallique avec une deuxième conductivité thermique spécifique (λ2), qui s'étend d'un seul tenant sur et/ou dans la seconde paroi latérale (18) avec une section transversale constante perpendiculairement et dans le sens longitudinal (Z) avec une première distance (a1) par rapport à la première couche de renforcement (22), et présente une deuxième épaisseur (d2) pour lequel
    la paroi extérieure (14) est réalisée en un matériau plastique EVOH étanche à la diffusion avec une première épaisseur de paroi (s1) et une troisième conductivité thermique spécifique (λ33) et est reliée de manière étanche à la diffusion aux couches de renforcement (22, 24) pour la formation d'un barrage à la diffusion (27), et
    le produit de la troisième conductivité thermique spécifique (λ33) et la première épaisseur de paroi (s1) est inférieur au produit de la première conductivité thermique spécifique (λ1) et de la première épaisseur (d1) et est inférieur au produit de la deuxième conductivité thermique spécifique (λ2) et de la deuxième épaisseur (d2).
  9. Profilé d'écartement selon l'une quelconque des revendications 1 à 8, pour lequel
    les couches de renforcement (22, 24) sont entièrement incorporées dans les parois latérales (16, 18) et partiellement dans la paroi extérieure (14).
  10. Profilé d'écartement selon l'une quelconque des revendications 1 à 8, pour lequel
    les couches de renforcement (22, 24) s'étendent seulement sur les parois latérales.
  11. Profilé d'écartement selon l'une quelconque des revendications 1 à 10, pour lequel
    la première couche de renforcement (22) et la seconde couche de renforcement (24) sont coextrudées avec le corps profilé creux (10).
  12. Unité de vitrage isolant avec
    au moins deux vitres (51, 52), qui se font face à une distance pour la formation d'un espace intermédiaire de vitre (53) entre elles, et
    un cadre d'écartement (50) en un profilé d'écartement selon l'une quelconque des revendications 1 à 11, qui est agencé entre les vitres (51, 52) de sorte que les côtés extérieurs dans le sens transversal (X) des parois latérales (16, 18) soient collés avec les côtés tournés vers eux des vitres (51, 52) avec un matériau de collage étanche à la diffusion (61, 62) et le cadre d'écartement (50) délimite ainsi l'espace intermédiaire de vitre (53).
EP16183387.6A 2010-10-27 2011-10-26 Profilé d'écartement et ensemble vitrage isolant avec un tel profilé d'écartement Active EP3162999B1 (fr)

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DE102010049806A DE102010049806A1 (de) 2010-10-27 2010-10-27 Abstandshalterprofil und Isolierscheibeneinheit mit einem solchen Abstandshalterprofil
PCT/EP2011/005405 WO2012055553A1 (fr) 2010-10-27 2011-10-26 Profilé d'espacement et vitrage isolant présentant un tel profilé d'espacement
EP11776113.0A EP2513401B1 (fr) 2010-10-27 2011-10-26 Profilé d'écartement et ensemble vitrage isolant avec un tel profilé d'écartement

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US20130212957A1 (en) 2013-08-22
EP3162999A2 (fr) 2017-05-03
EP3162999A3 (fr) 2017-08-02
EP2513401A1 (fr) 2012-10-24
EP2513401B1 (fr) 2016-08-10
CA2828800A1 (fr) 2012-05-03
CN103237949B (zh) 2016-08-10
CN103237949A (zh) 2013-08-07
PL2513401T3 (pl) 2017-01-31
US8756879B2 (en) 2014-06-24
RU2013123786A (ru) 2014-12-10
DE102010049806A1 (de) 2012-05-03
KR20130129372A (ko) 2013-11-28
CA2828800C (fr) 2017-05-02
KR101737323B1 (ko) 2017-05-29
PL3162999T3 (pl) 2021-10-25
WO2012055553A1 (fr) 2012-05-03

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