FI125910B - Multilayer glass arrangement and exterior of facade consisting of multilayer glass arrangement - Google Patents

Description

Multilayer glass arrangement and the outer surface of the façade formed of multilayer glass arrangements

Engineering

The invention relates to a multilayer glass which can be attached to the frame structures of a building or the like

In particular, the invention relates to frameless insulating glass used in the facades of buildings and to a glass exterior surface assembled therefrom.

Background of the invention

Insulating glass consists of flat glass which is sideways gas-tightly spaced by means of edge seals. The air or other gas between the glass sheets acts as an insulator, giving the insulating glass unit a good heat transfer coefficient, i.e. a u-value. The U-value describes the thermal insulation capacity of a structure, which is more important when trying to reduce the energy use of buildings. Insulating glass units can be used as window structures or as larger uniform surfaces, in which case frameless insulating glass units are installed opposite the edges. In this way, the impression of a uniform glass surface is created. GB 2171137 describes a structure in which a flexible fastener attached to one of the glass sheets of the unit is used to fasten the double-glazed units, which allows the insulating glass units and the fastening to be flexible without compromising the tightness of the insulating glass and their mutual edge seals.

When double-insulated glass has a better thermal insulation capacity, three-layer or multi-layer glass must be used. Multi-layer glass is, of course, heavier than double-glazed glass, so supporting the mass of multi-layered glass into the building’s frame structures is more demanding. The mounting must also withstand the wind load on the outer surface at the same time.

To accommodate the increased load, fasteners can be used that rest through a three-layer stack of insulating glass on at least both outer glass sheets. The fastening requires making holes in all the glass plates at an angle. An example of such a fastening method is described in European Patent 1354103.

SUMMARY OF THE INVENTION

When the fastening or support of a multilayer insulating glass is made by fastening through a glass package, at least the outermost glasses of the package must be tempered and, if necessary, laminated glass. As the glass must be cut and the necessary holes for the fasteners made before tempering, the insulating glass manufacturer must order the glass sheets to be cut to size and with the necessary openings and pre-tempered. Ordering such finished glass is, of course, more expensive than uncut plate glass. Multilayer glasses are currently used in a variety of different glasses, such as selective glasses and sunglasses. Tempering of these glasses requires special techniques and there are few companies capable of tempering. Insulating glass manufacturers do not have the possibility to temper at least special glass themselves, so fixed-size glass sheets ordered from a glass plate manufacturer often have to be transported for tempering, even over long distances. This increases costs and significantly extends delivery times. In addition, it is possible that during transportation, manufacture, or installation, the glass sheets will break or otherwise be replaced. In this case, a glass plate of the specified size must be ordered from the glass manufacturer, delivered for tempering, and only then can a replacement multilayer glass be assembled. The same situation exists when repairing existing glasses. It is clear that in this situation, for example, the repair and replacement of broken multi-layer glass, especially with special glass surfaces, is expensive and time-consuming. Not all specially coated glass can even be tempered, so their use is limited in areas where fasteners need to be installed on the glass plate.

Thus, it would be advantageous to provide an insulating glass arrangement in which the glass sheets of the multilayer glass have as few openings or other cuts as possible for attachment to the body of the multilayer glass.

According to one embodiment of the invention, it is an object to provide a multilayer glass in which the brackets supporting the multilayer glass are fitted to only one glass pane of the multilayer glass.

According to one embodiment of the invention, the object is to provide a multilayer glass in which only one of the glass sheets is tempered.

According to one embodiment of the invention, the object is to provide a multilayer glass with an improved u-value.

It is an object of one embodiment of the invention to provide a multilayer glass with at least two special glass sheets.

According to one embodiment of the invention, the object of the invention is to provide a multilayer glass in which the glass sheets are attached to each other only by gluing.

The invention is based on the fact that at least one of the outermost glass sheets of the multilayer glass is tempered laminate glass and the fasteners of the multilayer glass are fitted to this glass sheet.

According to one embodiment of the invention, at least two glass sheets of multilayer glass are attached to each other and to at least one tempered glass sheet by gluing.

According to one embodiment, at least one of the glass sheets of the multilayer glass is selective glass and one is sunscreen.

In various embodiments of the invention, the features described above and set forth in the description and claims below may be combined to make multilayer glasses suitable for various uses.

The invention provides several advantages.

The invention makes it possible to considerably speed up the production of multilayer glasses and save on manufacturing costs. Since only one of the layers of glass has to be tempered, the glass sheets used in the manufacture can be ordered from the manufacturer as uncut large preform sheets in the dimensions where the manufacturer is able to supply them most cheaply. Because expensive perforations and transport for tempering are not required, delivery times are accelerated in both new production and the delivery of repair glass. The structure can use different-tempered glass, which cannot be tempered, so the properties of multilayer glass can be better tailored to the needs of customers. Assembling multilayer glass by gluing intact flat glass sheets is easier than assembling similar structures where perforations are required for all sheets. Since the multilayer glass bracket does not have to go through the entire stack of glass, the u-value of the bracket and the multilayer glass is better than the through-mount.

Description of the drawings

Figure 1 shows one multilayer glass according to the invention.

Figure 2 shows one bracket that can be used in a multilayer glass according to the invention.

DESCRIPTION OF EMBODIMENTS For the purposes of this specification, a multilayer glass is a glass arrangement consisting of at least three parallel layers of flat glass, such as insulating glass.

Facade glass refers to a glass arrangement that forms the exterior surface of a building.

Glue refers to a fastener that adheres to adjacent pieces and secures them together. When applied, the adhesive is liquid or pasty, and hardens during bonding to a film that holds the pieces together.

Figure 1 shows one example of the implementation of the invention. The glass of Fig. 1 is a three-layer glass whose load-bearing glass sheet 1 is a double-layer laminated and tempered glass consisting of two glass layers 2 and 3 and a polymer film 4 between them. A hole 10 for a fastener 9 is made in this load-bearing glass sheet 1. The bracket 9 may be, for example, a flange bracket of circular cross-section as in Fig. 1, with a cylindrical body and flanges 11 extending to the edges of a hole in the load-bearing glass sheet 11. The bracket 9 is preferably inserted into the hole 10 The load-bearing glass sheet must be tempered laminated glass with at least two layers 2, 3 laminated to each other. Since, for example, in facade glazing, laminated glass is attached to the building frame, the load-bearing glass sheet 1 comes inside the building. The brackets are usually placed at the corners of the laminated glass, but they can of course be placed in any area of the load-bearing glass.

After installing the bracket 9, other functional glass layers 6, 8 can be attached to the load-bearing glass layer. Since there must be an insulating gap between the glass layers 1, 6, 8, the glasses must be spaced apart. In order to provide a suitable gap, an edging strip 5, 6 is placed on the edges of the glass sheets 1, 6, 8. The strip 5, 6 is attached to the surfaces of the glass sheets 1, 5, 8 and the glass sheets 1, 6, 8 to the strips 5, 6, respectively. Commercially available adhesives for this purpose can be used for gluing. In this way, a functional multilayer or composite structure is provided from the multilayer glass.

By varying the properties of the different layers of the multilayer glass according to the invention, the properties of the multilayer glass in use can be influenced. One of the outer layers must be strong enough to support the weight of the laminated glass and to withstand wind and other loads according to the dimensions and to transmit the stresses through the fasteners to the building frame. Other glass layers can be selected according to the desired properties. At least two selective glasses or selective glasses and sunscreens can be used in the structure. Other options are self-cleaning glass, various glasses that change their properties under the influence of electric current or light, or simply colored glasses. There may be several layers of glass and, in addition to the supporting glass sheet, one or more of the sheets may be tempered and / or laminated. However, it is most preferred that only tempered glass is used as the supporting glass sheet in order to avoid the costs of tempering and transportation related to tempering. However, it is essential that only the load-bearing glass layer has a hole or holes and the other glass sheets are intact non-perforated sheets.

Figure 2 shows by way of example one type of fastener that can be used to practice the invention. The invention is not limited to this example, but any suitable fastener can be used within the scope of the claims, the flange parts 11 resting on the carrier glass plate 1 in the example fastener are connected to each other by a thread 16 and can be pressed against each other by twisting against the outer surfaces of the carrier glass layer 1. The flange parts 11 have a layer of flexible material 12 on the glass plate side to avoid damaging the glass. The flexible material also allows the structure to live and have room for maneuver. The flange parts 11 are connected to a bracket body 13 with a nut arrangement 14 for connecting the bracket to the spacer or directly to the building frame 15.

Reference number list 1 load-bearing glass sheet 2 laminate glass layer 3 laminate glass layer 4 polymer film 5 strip 6 functional glass layer 7 strip 8 functional glass layer 9 bracket 10 hole 11 flange 12 flexible layer 13 fastener body 14 nut arrangement 15 spacer / frame 16 thread

Reference list EP 1354103 GB 2171137

Claims (9)

Claims Requirement 1 A multilayer glass arrangement comprising at least three spaced parallel glass plates (1, 6, 8) and spacers (5, 7) for spacing the plates and for securing the at least one bracket (9) to the load-bearing structure, characterized in that at least one the outer glass sheets (1) of the multilayer glass assembly are a supportive glass sheet of tempered laminate glass and the brackets (9) of the multilayer glass arrangement are attached only to this glass sheet (1). Requirement 2 Multilayer glass arrangement according to Claim 1, characterized in that at least three glass sheets (1, 6, 8) of the multilayer glass arrangement are fastened to one another by means of glues (5, 7). Requirement 3 Multilayer glass arrangement according to Claim 1 or 2, characterized in that at least one of the glass sheets of the multilayer glass is selective glass. Requirement 4 Multilayer glass arrangement according to Claim 1 or 2, characterized in that at least one of the glasses in the multilayer glass arrangement is sunscreen. Multilayer glass arrangement according to one of Claims 1 to 4, characterized in that at least one of the glass sheets of the multilayer glass arrangement is selective glass and one is a sun protection glass. Multilayer glass arrangement according to one of the preceding claims, characterized in that the plates of the multilayer glass arrangement, with the exception of the load-bearing glass sheet (1), are non-perforated intact glass sheets. Claim 7 An outer surface of a façade formed of multilayer glass arrangements, characterized in that it comprises at least two multilayer glass arrangements according to one of claims 1 to 6, which are mounted framelessly opposite the edges. Patentkrav Patentkrav 1 Flerskiktsglasarrangemang, som omfattar åtminstone tre på ett avstånd från varandra anordnade parallella glasskivor (1, 6, 8) och mellanstycken (5, 7) fört bilda avstånden mellan skivorna ftstore bärande konstruktion, kännetecknat av att åtminstone en av fler-skiktsglasarrangemangets yttersta glasskivor (1) utgörs av en bärande glasskiva av härdat laminerat glas och flerskiktsglasarrangemangets fästdon (9) är fästa self vidna Patent invention 2 A patented glass arrangement according to claim 1, the invention of which a glass rod (1, 6, 8) can be used as a means of limiting the label (5, 7). Patent screw 3 Fluorescent glass gauge is provided by patent screw 1 or 2, which can be used in the manufacture of flame glazing glazing or selective glazing. Patent screw 4 Flamekiktsglasarrangemang enligt patentkrav 1 eller 2, kännetecknat av att atatstone and av flerskiktsglasarrangemangets glas utgörs av solskyddsglas. Patent krav 5 Flerskiktsglasarrangemang enligt något av patentkraven 1 - 4, kännetecknat av att atatstone and av flerskiktsglasarrangemangets glasskivor utgörs av selectivglas och en av solskyddsglas. Patent claim 6 Fluorescent glass arrangement according to the present invention, according to the present invention (1) a transverse glass arrangement is provided with a glass glazing. Patent number 7 In the case of patent data of the invention, the reference number of the data set of the invention is clearly set out in claims 1 to 6, which are not particularly limited to the frame of the cantilever.