EP3497297A1

EP3497297A1 - Corner assembly for insulated glass elements having films adhesively bonded in an edge-flush manner

Info

Publication number: EP3497297A1
Application number: EP17734746.5A
Authority: EP
Inventors: Hans-Werner Kuster; Walter Schreiber; Francis SERRUYS
Original assignee: Saint Gobain Glass France SAS; Compagnie de Saint Gobain SA
Current assignee: Saint Gobain Glass France SAS
Priority date: 2016-08-11
Filing date: 2017-07-04
Publication date: 2019-06-19
Also published as: WO2018028885A1; US20190106930A1; US10450791B2

Abstract

The invention relates to a corner assembly (2) of two insulated glass elements (1a, 1b) butting against each other at an angle, which each have at least two panes (3a, 3b), which are connected to each other by means of a spacing profiled element in such a way that a pane intermediate space is formed, wherein the panes (3a, 3b) of each insulated glass element, which are arranged parallel, have mitered abutment ends in the end region of said panes, which abutment ends are connected to each other by means of a film (4), and the film (4) is provided for connecting the insulated glass elements (1a, 1b) by means of adhesive (6).

Description

Corner arrangement for insulating glass elements with flush mounted foils

The invention relates to a corner arrangement for insulating glass elements, an insulating glass element and a use of the corner arrangement in an all-glass facade.

Corner arrangements for insulating glass elements are increasingly being used on buildings for aesthetic reasons with glass facades, especially in the case of facade transitions or when the façade is optically executed as an all-glass façade. In this case, the abutting insulating glass elements are kept frameless in the corner to meet the optical requirements.

Such insulating glass elements consist of at least two disks, which are held by a spacer at a distance from each other. The panes may have a coating, in particular a heat protection and / or sunscreen coating. In known embodiments of insulating glass elements for all-glass facades usually stepped glasses are used. Stepped glasses are characterized by the fact that the external pane is larger than the inner pane. Thus, in the case of a corner arrangement in the abutting region of the insulating glass elements, a cavity is produced, which is usually sealed in its joint area with a sealing material.

EP 1 81 1 1 14 A2 discloses an all-glass corner made of insulating glass which has two insulating glass parts crashing at an angle. The Isolierglasteile collide in such a way that they form in the region of their butt ends a continuous filled with gas disc space. The glass panes of the insulating glass parts are mitred at their butt ends. The abutting surfaces of the glass panes are each provided with a shoulder, so that the butt ends of the collided glass panes form a fold, which is widened towards the space between the panes. The abutment surfaces of two collapsed glass panes are connected to each other by means of a double-sided adhesive strip. A particular difficulty is in the production of all-glass corners, since the mechanical strength of the connection is very high and the transport of all-glass corners from Fertigunsortort to the installation requires special and expensive security measures. However, all-glass corners produced in this way are not very stable, which causes considerable problems, especially in production and transsporting. The invention has for its object to provide a corner arrangement of two abutting at an angle insulating glass elements, in which the mechanical strength is increased. The object of the present invention is achieved by a corner arrangement according to claim 1. Preferred embodiments will become apparent from the dependent claims.

The corner arrangement according to the invention comprises two insulating glass elements which meet at an angle and each have at least two panes, which are connected to one another by means of a spacer profile to form a space between the panes. According to the invention, the discs arranged in parallel have at their end regions mitred abutment ends which are connected to one another via a foil, the foil of the insulating glass elements having adhesive means by which the insulating glass elements are adhesively bonded to one another.

Advantageously, the insulating glass elements at their butt ends on a film, they can thereby be transported individually and glued only at the site to a corner arrangement. Thus, the cost of transporting the corner assembly from the manufacturing site to the site is greatly simplified. By bonding the insulating glass elements at the place of use, the effort in the production of the corner arrangement is advantageously optimized.

The panes of the insulating glass elements are in particular insulating glass panes,

Composite discs or single glass panes. A composite disk may comprise at least two disks which are interconnected via an intermediate layer. The intermediate layer may preferably be a thermoplastic such as polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyurethane (PU), polyethylene terephthalate (PET) or multiple layers thereof, preferably 0.3 mm to 0.9 mm thick.

In an advantageous embodiment of the corner arrangement according to the invention, the panes can consist of flat glass, float glass, soda-lime glass, quartz glass or borosilicate glass. The thickness of each disc can be varied and adapted to the requirements of each case. It is preferred to use discs of standard thicknesses from 2.00 mm to 25 mm, and preferably from 3 mm to 19 mm. The size of the disc can vary widely and depends on the size of the disc

use according to the invention. To increase the insulating effect, the emissivity-reducing, preferably transparent, coatings may additionally be applied to the surfaces of the panes.

The disks may be colorless or colored and / or have a coating, in particular transparent and / or electrically conductive coating.

The transparent, electrically conductive coating according to the invention can be used for

electromagnetic radiation, preferably electromagnetic radiation of a

Wavelength of 300 to 1 .300 nm, especially for visible light from 390 nm to

780 nm, "permeable" means that the total transmission of the disk is permeable to> 70% and in particular> 75%, especially for visible light. <br /> <br /> The transparent, electrically conductive coating is preferably a functional one

Coating, more preferably a functional coating with a sunscreen effect. A coating with a sunscreen effect has reflective properties in the infrared range and thus in the range of solar radiation. As a result, a heating of the interior of a building due to solar radiation is advantageously reduced.

Such coatings are known to the person skilled in the art and typically contain at least one metal, in particular silver or a silver-containing alloy. The

transparent, electrically conductive coating may comprise a sequence of several individual layers, in particular at least one metallic layer and dielectric layers containing, for example, at least one metal oxide. The metal oxide preferably contains zinc oxide, tin oxide, indium oxide, titanium oxide, silicon oxide, aluminum oxide or the like and combinations of one or more thereof. The dielectric material may also include silicon nitride, silicon carbide or aluminum nitride.

The discs are interconnected via a spacer profile. The

Spacer profile is located between the discs and is preferably fixed by a bond between the spacer profile and disc. As the main body of the

Spacer profiles are all known from the prior art hollow body profiles regardless of their material composition, such as glass, polymers or metals (eg., Stainless steel or aluminum), usable. The spacer profile is Favor formed like a frame and sealed against gas diffusion. For this purpose, the spacer profile by means of a primary seal, such. As polyisobutylene, glued to the panes and the edge joint with a secondary seal, z. As polysulfide filled. At the abutting ends of the insulating glass elements, the two spacer profiles of the

Insulating glass elements form-fitting on each other. For this purpose, the butt ends of

Spacer profiles also a miter on. The space between the panes can be filled with air or a gas, in particular noble gas, argon or krypton.

In an advantageous embodiment of the corner arrangement according to the invention, the film is arranged flush with the edge. The width of the film is based on the total thickness of a

Insulated glass element adapted and can substantially the width of the mitred ends plus the width of the disc space of a

Insulating glass element correspond, wherein the width of the disc space corresponds to a distance of the discs. The width of the film may increase to a multiple if the insulating glass element comprises a plurality of spaced-apart panes and a plurality of interpane spaces.

Advantageously, for the width determination of the film only the total thickness of the insulating glass element of importance and not the distance of the discs to each other. The spacing of the panes may vary with multiple glazing. As a rule, knowledge about the total thickness of the insulating glass element is sufficient to determine the width of the film, irrespective of the number of panes of the insulating glass element or the width of the individual panes.

In a further advantageous embodiment, the film is provided to the

To seal the space between the panes of the insulating glass element gas-tight. The film may be rigid or flexible and / or have a thickness of 0.001 mm to 1 mm, in particular 0.3 mm.

The film adheres by means of an adhesive, in particular an acrylate adhesive, to the end regions of the panes and the spacer profile. Advantageously, the adhesive is applied to the miter planes of the discs and the film is pressed against the miter planes of the disc.

In a further advantageous development of the corner arrangement according to the invention, the film may contain a plastic, in particular a polypropylene. Such Plastic films are often made of polyolefins, such as high and low density polyethylene (PE), or polypropylene (PP), PET.

Alternatively, the film may be made of glass, in particular paper-thin glass. The film formed from glass enhances the optical transparency of the corner arrangement according to the invention. The thickness of the sheet of glass may be 0.3 mm to 3 mm, preferably 0.5 mm.

Alternatively or additionally, the film may be formed gas and / or vapor diffusion tight. The film may have a coating, in particular an SiOx coating and / or a metallic coating. Due to the SiOx coating, the

Gas-tightness of the film significantly improved. In addition to the effect as a sealant, the coating can be applied for purely decorative purpose on the film, in particular a surface of the film facing the space between the panes. In order to create a transparent impression of the corner arrangement according to the invention, the film may be mirrored on at least one surface or the coating may be colored on the surface

Be adapted spacer profile.

In a further advantageous development of the corner arrangement according to the invention, an insulating glass element comprises three panes. The three discs are through one

corresponding spacer profile complained and arranged in parallel. Such an insulating glass element is also referred to as a triple glazing.

Alternatively or additionally, the film may comprise fibers, in particular glass fibers. These fibers serve to reinforce and increase the stability of the film.

In a further advantageous embodiment, the film is made transparent. A transparent film in the sense of the invention means that the visible light substantially penetrates the film.

In a further particularly preferred embodiment of the invention

Corner arrangement, the insulating glass elements are interconnected by means of the adhesive film having. The adhesives may comprise a silicone adhesive, in particular a transparent silicone adhesive, and / or an adhesive tape. For this purpose, the

Silicone adhesive and / or adhesive tape applied to the film and merged the insulating glass elements at their butt ends. The adhesive tape can be a transparent plastic film coated on one or both sides with pressure-sensitive adhesives. The thickness of the adhesive can be from 8 mm to 50 mm. In certain cases, the adhesives may need to have fast adhesive properties of the order of a few seconds. The

Merging the individual insulating glass elements can be carried out particularly advantageous at the final site. Because the corner arrangement only on

Site is glued, the cost of transporting the corner assembly is significantly reduced.

Preferably, at least two project beyond each in the joint areas

abutting discs of the corner assembly two more contiguous discs.

The insulating glass elements form an angle under which they collide. The miter can correspond to an angle bisector of the angle with the

Insulating glass elements are fixed. The angle is preferably less than 180 °, particularly preferably 90 °.

A further aspect of the invention comprises an insulating glass element for a corner arrangement with at least two disks arranged in parallel, which are each mitred at their end region and have a miter plane for contacting with a second insulating glass element. The disks are arranged offset from one another in such a way that their miter planes lie in one plane and are connected to one another via a film.

A further aspect of the invention comprises a use of a corner arrangement according to the invention in an all-glass façade.

In the following the invention will be explained in more detail with reference to a drawing and exemplary embodiments. The drawing is a schematic representation and not to scale. The drawing does not limit the invention in any way.

Show it:

Fig. 1 is a perspective view of two insulating glass elements according to the invention, Fig. 2 is a perspective view of a corner arrangement according to the invention of two

Insulating elements

3 is a sectional view of an insulating glass element according to the invention,

Fig. 4 is a sectional view of the corner arrangement of the invention of two

Insulating elements. Fig. 1 shows a perspective view of the insulating glass elements 1 a, 1 b according to the invention. An insulating glass element comprises two disks each, which are connected via a spacer profile. The spacer profile spaced in the edge region of the parallel discs arranged at a constant distance from each other and is circumferentially mounted on at least three sides of the discs. The spacer profile can for example consist of a simple metal hollow profile, which is provided with a molecular sieve for dehumidifying the disc space formed between the discs. The discs are fixed by means of an adhesive to the spacer profile, so that the spacer profile contributes significantly to the mechanical strength of the insulating glass element 1 a, 1 b. As an adhesive which simultaneously has a sealing function for the insulating glass elements 1 a, 1 b, polyisobutylene is often used. Furthermore, the insulating glass element 1 a, 1 b comprise sealing means which are intended to seal the insulating glass element against moisture. Also, a gas-tightness is essential for the insulating gas 1 a, 1 b especially when the space between the panes with a thermal insulation gas, such as argon, is filled. The pane 3a directed outward in the case of a building façade projects beyond the pane 3b directed towards the building, so that the joint area of the insulating glass elements 1a, 1b is designed in the manner of a miter. The miter can correspond to an angle bisector, for example 45 °, of the angle with which the insulating glass elements are fixed, for example 90 °. In the area of their butt ends, the discs are mitred. The disk 3a projects beyond the disk 3b only insofar as the edges of the mitred ends of the disks lie in a common plane.

The miter planes of the discs 3a, 3b have an acrylate adhesive. By means of the acrylate adhesive, a film 4 adheres to the edge of the miter planes of the discs 3a, 3b. The film 4 connects the discs 3a and 3b. The width of the film 4 may correspond substantially to the width of the mitred ends plus the width of the space between the panes of an insulating glass element and is intended to seal the space between the panes of the insulating glass element airtight. The film 4 is made of polypropylene (eg PET) and can be reinforced by fibers in their load capacity. Furthermore, it is possible that the film consists of a mixture of materials such as plastic and metal. The insulating glass elements 1 a and 1 b are constructed almost identical.

Fig. 2 shows a perspective view of a corner arrangement 2 according to the invention from the two insulating glass elements 1 a and 1 b. The corner assembly 2 consists of the two at an angle of 90 ° abutting insulating glass elements 1 a and 1 b. At the abutting ends of the insulating glass elements 1 a, 1 b, the spacer profiles arranged between the panes 3 a, 3 b are adhesively bonded to one another in a form-fitting manner by means of adhesive. In Fig. 3 is a horizontal sectional view (A) of an insulating glass element 1a according to the invention is shown. The insulating glass element 1 a comprises two disks 3a and 3b. The disk 3a can face outwards on site and the disk 3b is designed lying inwards. The discs 3a and 3b are not necessarily monolithic discs. The disc 3a and 3b may be formed as insulating glass or laminated glass or a combination of these. It is also possible to use combinations of glass and plastic discs.

The disc 3a and 3b may each have a thickness of 3 mm to 19 mm. The outwardly facing disc 3 a projects beyond the building facing disc 3b such that their miter planes lie in a common plane. The common plane can also be referred to as an extended common miter plane. In the common miter plane, the film 4 is arranged. The film 4 adheres by means of the acrylate adhesive 5 at butt ends of the discs 3 a and 3b. The film 4 is flush with the edge of the insulating glass element 1 a, in particular with the outer edges of the miter formed.

In Fig. 4 is a horizontal sectional view (B) of the invention constructed at the site corner assembly 2. The corner assembly 2 consists of the two at an angle of 90 ° abutting insulating glass elements 1 a and 1 b. The corner arrangement 2 represents only one possibility of the angle selection. The angle can vary according to the place of use and have an angle of 1 ° to 179 °.

The two insulating glass elements 1 a and 1 b are bonded to each other on their films 4 by means of a transparent adhesive 6. The adhesive 6 is preferably a silicone adhesive. The insulating glass elements 1 a and 1 b abut in the region of their butt ends together so that the disc spaces of the discs 1 a and 1 b do not merge into a continuous gas-filled space between the panes. Rather, the disc spaces remain with their respective gas filling through the film 4 continues to be formed as two separate inter-disc spaces.

LIST OF REFERENCE NUMBERS

1 a, 1 b insulating glass element 2 corner assembly 3a, 3b disc

4 foil

5 acrylate adhesive

6 adhesives

Claims

claims

1 . Corner arrangement (2) consisting of two insulating glass elements (1a, 1b) which abut one another at an angle, each having at least two panes (3a, 3b) which are interconnected by means of a spacer profile to form a space between panes, the panes (3a , 3b) have at their end portions mitered butt ends, which are connected to each other via a film (4) and the films (4) by means of adhesive (6) for connecting the insulating glass elements (1 a, 1 b) are provided.

2. Corner arrangement according to claim 1, characterized in that the film (4) in each case on an insulating glass element (1 a, 1 b) is arranged flush with the edge.

3. corner arrangement according to claim 1 or 2, characterized in that in each case an insulating glass element (1 a, 1 b,) comprises three discs (3 a, 3 b).

4. Corner arrangement according to one of claims 1 to 3, characterized in that the film (4) by means of an adhesive (5), in particular an acrylate adhesive, on the

End portion of the discs (3a, 3b) adheres.

5. Corner arrangement according to one of claims 1 to 4, characterized in that the film (4) has a coating, in particular SiOx coating.

6. Corner arrangement according to one of claims 1 to 5, characterized in that the film (4) contains a plastics, in particular a polypropylene, and / or glass.

7. Corner arrangement according to one of claims 1 to 6, characterized in that the film (4) is gas-tight and / or rigid.

8. Corner arrangement according to one of claims 1 to 7, characterized in that the film (4) transparent and / or a thickness of 0.001 mm to 3 mm, in particular 0.3 mm.

9. Corner arrangement according to one of claims 1 to 8, characterized in that the adhesive (6) comprises an adhesive, in particular a silicone adhesive, or an adhesive tape, in particular acrylate adhesive tape.

10. Corner arrangement according to one of claims 1 to 9, characterized in that the adhesive (6) are transparent.

Corner arrangement (2) according to one of claims 1 to 10, characterized in that in each case two abutting slices (3a) project beyond two further abutting slices (3b) at least in the joint areas.

12. Corner arrangement (2) according to one of claims 1 to 1 1, characterized in that the miter corresponds to an angle bisector of the angle with which the insulating glass elements (1 a, 1 b) are fixed.

13. Corner arrangement (2) according to one of claims 1 to 12, in particular an all-glass corner.

14. insulating glass element (1 a, 1 b) for a corner arrangement according to one of claims 1 to 13, with two parallel discs (3 a, 3 b), which are each mitered at its end portion and a miter plane for contacting with a second insulating glass element characterized in that the discs (3a, 3b) are arranged offset from one another in such a way that their miter planes lie in one plane and are connected to one another via a foil (4).

15. Use of a corner arrangement (2) according to one of claims 1 to 13 in an all-glass facade.