EP1353020A2 - Insulating glazing with fixing system - Google Patents

Abstract

Insulation glazing has a holding system with at least two glass panes. One outer surface (2a) of one glass pane (2a') forms the facade outer side and the other outer surface (2b) of one glass pane (2b') forms the facade inner side. The glass panes are joined via spacers (3) so that a hollow space (4) is formed between the panes. A support construction (11) with holders is provided for the insulation glazing. The holders interact directly on the glass pane which forms the facade inner side. A supporting element (10) connects the support construction via the insulation glazing and supports the glass pane forming facade outer side. The supporting element partially encompasses both glass panes. Preferred Features: The supporting element has a longitudinal connecting element, preferably made from a wire element of metal or plastic, which encompasses the insulation glazing in a corner in a close strip.

Description

The invention relates to an insulating glazing with holding system, which is preferably intended for a glass facade, with at least two glass panes, with at least one outer surface a glass pane the facade outside and at least an outer surface of a glass pane the facade inside forms, wherein the glass sheets on at least one Spacers are connected and at least one Form cavity between the glass panes, being a supporting structure provided with holders for the insulating glazing is.

In modern construction the material glass is increasingly used. For reasons of energy saving mainly multi-pane insulating glasses are used, wherein the individual glass sheets are glued together by means of spacers. Regulations and laws, such as the Construction Products Directive and the Construction Products Act, make specific demands on the glass itself and the construction when using glass in construction. Above all, when glass is installed outdoors in the form of, for example, glass facades, the safety of persons in the traffic area of the facade must be ensured. For example, the overall structure must be dimensioned so that no glass panes can fall down under climatic conditions such as wind load and / or snow load. In addition, in the event of breakage of a pane of glass, no large and heavy fragments may fall which could kill people. For this reason, usually a VSG (V erbund s afety g las), as used in automobile windshields. In laminated safety glass, several thermally and / or mechanically preloaded individual disks are usually glued together with films, such as PVB (polyvinylbutyl). Through the pre-treatment of the individual panes and the laminated composite construction VSG breaks into many small and lightweight individual pieces.

To prevent falling of a whole pane of glass, The glass panels are often used as filler through frame structures held. Thus, in the patent DE 36 24 491 C3 describes a holding system for insulating glazing. In this document, in Figure 2 is a multi-disc Insulating glazing shown, with two stages offset Glass panes on the facade outside with the attached to the façade inside supporting structure attached are. This holding system shows a visually disturbing Edge surrounding the insulating glazing. These frame structures and mounts just work because of the transparent Glass visually very disturbing. That is the wish many customers, these disturbing frame parts and mounts to reduce or omit.

The inventor has set itself the task of insulating glazing, preferably for glass facades, in such a way that in compliance with all safety-related requirements visually disturbing frames and fixtures be avoided as far as possible.

The object is achieved by the features of the first claim solved. Advantageous developments of the invention are the subject subordinate claims.

Accordingly, the inventor proposes an insulating glazing with holding system, which is preferably intended for a glass facade is, with at least two panes of glass, at least an outer surface of a glass pane the facade outside and at least one outer surface of a glass sheet the façade inside forms, the glass panes over at least one spacer are connected and at least form a cavity between the glass panes, wherein a supporting structure with holders for the insulating glazing is intended to improve so that the Mounts exclusively and directly to the at least a, the façade inside forming glass attack, and additionally provided at least one support element which is exclusively on the insulating glazing connected to the supporting structure, which at least the at least one arranged on the facade outside Glass pane supported.

Through this embodiment of the holder ensures that the visually disturbing impression of brackets, especially in the exterior facade area is reduced to a minimum. In addition, the support elements meet the task according to the required regulations to derive the weight of each individual disc, in case of failure of the central Scheibenverklebung on the building. This is achieved in that the support element at least partially surrounds the glass panes, whereby a positive connection of the glass pane, which form the facade inside and the glass pane which forms the facade outside, is created. To define a positive connection in which parts contours interlock, is on Dubbel: "Paperback for Mechanical Engineering" 15th edition; See chapter Component Connections on page 388.

The support elements can be selected in their dimensions Be that on the exterior facade and façade interior barely visible. The previously visually very disturbing Frame systems are thereby bypassed and created the impression of an all-glass façade.

The inventor points out that elements in the space the glass panes are introduced, such as additional disc spacers, not as support elements to be understood.

Particularly simple is such a support element by realize at least one elongate connection element. An elongate connecting element is understood by the inventor Elements like a wire, a string or a lockable clip element made of metal and / or plastic, the insulating glazing in the area of a corner in one circulating closed track. Such a closed track can be realized by a wire whose ends are twisted become. This elongated connecting element creates a mechanical connection between the facade outside and the facade inside glass pane and thus the legally required mechanical connection of all Glass panes with the building. A pure bonding poses no lawful connection.

It is advantageous if the at least one elongate connecting element at least partially in at least one groove runs. The groove prevents the elongated connecting element can slip. In addition, the groove acts in the Case of failure of the central bonding and under Force by the elongated connecting element, as a predetermined breaking point of the glass. Such a groove can especially easy on the glass surface, which is the facade outer surface, and / or on the glass surface, the facade inner surface forms, be ground. But the groove can also on the edge of the insulating glass one-sided or two-sided be attached.

A variant of the holding system may be that the Supporting elements consist of at least 2-legged angles, whose leg length is only over part of the edge length the insulating glass extends. These angles will be attached to the insulating glazing for example by a Safety wire that surrounds the insulating glazing on the edge. The support elements are due to their load-bearing Function mainly made of metal. Metals show due to their heat conduction properties already above described undesirable effect of thermal bridging. For this reason, a limitation of the leg length of the Support elements useful. The resulting gaps between two adjacent insulating glazings can be cost-effective, For example, with a transparent silicone, sealed become. The support elements transfer in case of a Failure of the adhesive joint, the weight of the outside of the facade Glass panes to the supporting structure and thus to the building. On facades, partly due to wind pressure and wind suction effect other forces, for example Transverse forces, act on the glass panes, is on the 2-legged structure of the support elements a homogeneous Power dissipation to the structure allows.

According to the underlying inventive idea The inventor also proposes that the width of the angles adapted to the edge of the insulating glazing, that both the outside of the facade forming glass as also the facade inside forming glass pane by the Supporting element is supported, wherein the angle is not wider is considered the edge width of the insulating glazing. hereby are optically disturbing surfaces on the facade outside and the façade inside barely visible.

The inventor has recognized that the support elements designed so that should not be out of the gaps adjacent insulating glazing can fall out. Out For this reason, the inventor proposes along the leg length the support elements constrictions to install. These Constrictions that intervene on the edge of the insulating glazing, act as a mechanical locking of the support elements. In addition, in these constrictions the edge on the circumference of the insulating glazing surrounding safety wire are inserted, thus the support element the insulating glazing attached.

In a particular embodiment, the support elements each leg have at least one retaining element. This Holding element can by simply punching or folding a leg part surface at the leg end or at the leg intersection will be realized. So own insulating glazings often in the edge area an elastic bond between the adjacent glass panes. In the bonding The retaining elements can be easily pressed. A particularly safe method the support elements on the insulating glazing to attach, is a screw connection of the support elements with the spacers of the insulating glazing.

It is very cheap if the support elements in the corner area Have connecting surfaces perpendicular to the leg surface are arranged. These connection surfaces can open the façade outside of the glazing, preferably only on the facade outside of the insulating glazing, be arranged. The connection surfaces can as Triangles or quarter-circular areas between the Legs of the support elements are welded. Should by, for example, a wind suction the glass pane of the facade outside away from the bond with the spacer solve, it prevents the glass pane as can fall down whole piece. The connecting surfaces cause a splinter break of the glass. this function is required by a legal requirement. So far These so-called emergency mounts were mostly as full-page running around the frame. In the invention Execution form the connecting surfaces in the corners the required emergency brackets. Because these connection surfaces not full-page the insulating glazing revolve are this hardly noticeable visually.

An advantageous embodiment of the invention provides that in the glass pane, which is arranged to the facade inside is, at least one opening is attached. These Opening can be a hole, the one to the facade inside towards decreasing cross section, for Example, a conically narrowing hole. The composite structure The glass also allows a layer for layer step-shaped cross-sectional constriction of the opening.

The opening, which can be realized very easily, acts as a connection point of the holder with the insulating glazing.

It should be mentioned at this point that also adhesive joints between the bracket and the insulating glazing technically are feasible, but this method of connection contrary to the legal provisions.

The inventor also proposes that in this connection point a resiliently connected to the bracket Bolt element engages. Since laminated safety glasses, before everything in the range of edges, are very susceptible to breakage, is this elastic storage makes sense. The elastic storage can be realized by a rubber sealing element, the between the contact surface of the opening and the engaging Bolt element is arranged. But also an elastic Storage in the form of a vibration damper between a Mounting of the insulating glazing and the supporting structure is conceivable.

In insulating glazings with cavities in which are usually Filling gases are, these cavities are airtight to the outside sealed. The opening described above could be this airtight completion of a cavity endanger. For this Reason suggests the inventor, the glass with the openings according to the invention not directly to a cavity adjacent to place, but another glass to arrange between.

As a further improvement is the inventor in the inventive Insulating glazing proposed with holding system, To use double glazing, two or more Have cavities. As a result, the heat transfer coefficient the insulating glazing, generally as a k value or U value can be reduced. The loss of Thermal output per façade surface is thereby reduced and follows the positive trend towards energy savings. Continue to have a positive effect on the unwanted heat losses themselves the support elements according to the invention, the one occupy minimal area of the total facade and This represents only minimal heat or cold bridges.

Additional features and advantages of the invention will be apparent from the following description of preferred embodiments with reference to the drawings.

Figur 1 bis Figur 3:

Ausführungsvarianten des 2-schenkligen Winkels in verschiedenen Ansichten;

Figur 4 bis Figur 6:

Ausführungsvarianten der erfindungsgemäßen Isolierverglasung mit Winkel;

Figur 7:

Schnitt durch eine erfindungsgemäße Isolierverglasung mit Nut und Draht;

Figur 8:

Isolierverglasung mit Draht, der in einer Nut verläuft;

Figur 8a:

Isolierverglasung mit Draht, der in zwei Nuten verläuft;

Figur 9:

Erfindungsgemäße Isolierverglasung mit Haltesystem;

Figur 10:

Schnitt durch die erfindungsgemäße Isolierverglasung mit Halterung und Bolzenelement;

Figur 11:

Ansicht von der Fassadeninnenseite auf eine erfindungsgemäße Isolierverglasung mit Haltesystem.

The invention will be explained in more detail with reference to the drawings. They show:

Figure 1 to Figure 3:

Variants of the 2-legged angle in different views;

FIG. 4 to FIG. 6:

Variants of the insulating glazing according to the invention with angle;

FIG. 7:

Section through an insulating glazing according to the invention with groove and wire;

FIG. 8:

Insulating glazing with wire extending in a groove;

FIG. 8a:

Insulating glazing with wire, which runs in two grooves;

FIG. 9:

Inventive insulating glazing with holding system;

FIG. 10:

Section through the insulating glazing invention with bracket and bolt element;

FIG. 11:

View of the façade interior on an insulating glazing according to the invention with a holding system.

FIG. 1 shows an embodiment of the invention Support element. The support element consists of a 90 ° angle 5, made of a flat material with two equal lengths 50 mm long legs was made. At the two Leg ends are folded over partial surfaces, which are the retaining elements 7 form. These holding elements 7 can in the Edge seal of the insulating glazing 1 intervene. In this embodiment, the attachment of this support element very simply by, for example, a flat metal wire, the edge of the scope of the insulating glazing and the Angle 5 rotates, be realized.

FIG. 2 shows a further embodiment of the invention Support element. The structure of the angle 5 corresponds the structure of the angle 5 of Figure 1, only is in this Execution additionally a triangular connection surface 8 attached near the leg intersection. These Bonding surface 8 acts as an emergency support for the glass pane 2b 'the facade outside of a double glazing 1.

FIG. 3 shows a further advantageous embodiment of the invention Support element according to the invention. In this view is a Leg of the 90 ° angle 5 with the entire leg length to see. From the second leg, perpendicular to the plane runs, is only the cross section on the left side to see the figure 3. To attach the angle 5 at an insulating glazing 1 has this particular design of the angle 5 on the first leg a holding element 7. In addition are on both legs two constrictions 6 too see. In these constrictions can be two security wires 10a are inserted, the insulating glazing. 1 run around the edge and thus the angle 5 on the glazing 1 fix.

FIG. 4 shows a section through an inventive device Insulating glazing 1 with angle 5. The insulating glazing 1 consists of three panes 2, 2a ', 2b', the glass pane 2b 'forms the facade inside. About a spacer 3 and a 16mm wide cavity 4 are the glass panes 2, 2b 'with the facade outside forming glass 2a 'glued. The glass sheet 2b 'is via brackets 12 connected to the supporting structure, wherein the Brackets 12 and the support structure 11 in Figure 4 not are shown. In case of a possible failure of the Bonding to prevent the falling off of the glass sheet 2a ' are between the insulating glazing 1, the angle. 5 appropriate. The angle 5 shown in Figure 4 has in Region of the cavity 4 two constrictions 6. These Constrictions 6 prevent such an angle 5 between two insulating glazing 1 can slip. In the right-hand constriction 6 is additionally a stainless steel wire inserted, which surrounds the insulating glazing edge and attached the angle 5 to the insulating glass 1. The Width of the angle 5 is chosen so that a force connection the glass pane 2a 'with the glass pane 2b' guaranteed is.

FIG. 5 shows a further attachment possibility of the Winkels 5 with double glazing 1. The double glazing 1 corresponds to the structure of the glass panes 2 forth Structure of the insulating glazing 1 of Figure 4. For attachment of the angle 5, this is in the region of the cavity 4 with screwed to the spacer 3 of the insulating glass 1.

FIG. 6 shows a section through an inventive device Insulating glazing 1 with angle 5. The insulating glazing 1 consists of three panes 2, 2a ', 2b', the glass pane 2b 'forms the facade inside. About a spacer 3 and a 16mm wide cavity 4 are the glass panes 2, 2b 'with the facade outside forming glass 2a 'glued. The glass sheet 2b 'is via brackets 12 connected to the supporting structure, wherein the Brackets 12 and the support structure 11 in Figure 6 is not are shown. In case of a possible failure of the Bonding to prevent the falling off of the glass sheet 2a ' are 1 angle 5 mounted between the insulating glazing. The angle 5 of Figure 6 has in the region of Cavity 4 folded retaining elements 7. These retaining elements 7, which is in the gluing of the glass panes 2 cling, prevent such an angle 5 between two insulating glazing 1 can slip. For fixing the angle 5 is also here, the double glazing 1 peripheral safety wire 10a attached, the preferably single-core or multi-core metal and / or plastic may be performed. In this particular A single-core flat wire 10a is used. The width of the angle 5 is chosen so that a Force connection of the glass pane 2a 'with the glass pane 2b' is guaranteed.

FIG. 7 shows a section perpendicular to the glass panes 2, 2a ', 2b' of an insulating glazing according to the invention 1. This insulating glazing 1 is through three glass panes 2, 2a ', 2b' formed. A glass pane 2a 'forms the facade outside and two glued glass sheets 2, 2b 'are located on the facade inside, with only the glass sheet 2b 'forms the facade inside. The Glass pane 2a 'is connected to the glass sheets 2,2b' by means of a Spacer 3 connected. This creates between the glass sheets 2a 'and 2 a thermally insulating acting cavity 4. The holder 12 of the support structure 11 (both not shown in Figure 7) are exclusive attached to the glass sheet 2b '. In the glass panes 2a 'and 2b' is a groove 9 ground. In this groove 9 is a wire 10, here a stainless steel wire, inserted and around the insulating glazing 1 stretched and twisted at its ends. This creates a mechanical connection of the Glass pane 2a 'with the glass pane 2b'.

FIG. 8 shows an insulating glazing 1 with a, in a groove 9 extending and the insulating glazing 1 circulating, Wire 10. In the corner region of the glass sheet 2a 'is a 2 mm deep and 1.5 mm wide groove 9 quarter circle ground in. In this groove 9 is a stainless steel wire 10 inserted around the insulating glazing. 1 is curious. In case of failure of the adhesive bond between the glass sheets 2, 2b 'and 2a' is the weight the glass sheets 2a 'and on this glass pane 2a' acting Forces by means of stainless steel wire 10 on the glass panes 2, 2b 'and thus transferred to the building. This Wire 10 forms the support element in this embodiment. But it can also be attached in addition a 2-legged angle 5 be with the wire 10, the two legs and the insulating glazing 1 can rotate. This results a particularly safe execution of the glass pane support.

FIG. 8 a shows another possibility of a wire 10 in the area of the corners of an insulating glazing 1, to a glazing 1 to attach. In this design are two grooves 9 at the edge region of two adjacent edge sides the insulating glazing 1 ground.

FIG. 9 shows a view of the façade inside to an insulating glazing 1 according to the invention with holders 12 and supporting structure 11. The insulating glazing 1 consists of three glass panes 2, 2a ', 2b', wherein the glass pane 2b 'forms the facade inside. About a spacer 3 and a 16mm wide cavity are the Glass sheets 2, 2b 'forming with the facade outside Glass pane 2a 'glued. Exclusively the glass pane 2b 'is directly over the brackets 12 with the support structure 11 connected. The glass sheet 2 is flat with a PVB film to the glass pane 2b 'glued. The glass pane 2a ', with spacers 3 with the glass pane 2 is glued in addition by the support elements 5 (in Figure 9 not shown) against accidental falling out secured.

FIG. 10 shows a section through the invention Insulating glazing 1 with holding system in the plane in which the opening for the bolt element 14 extends. The insulating glazing 1 consists of three 8mm thick laminated safety glass panes 2, 2a ', 2b', wherein the glass pane 2b 'the facade inside forms. About a spacer 3 and a 16mm wide cavity 4 are the glass sheets 2, 2b 'with glued to the outside of the facade forming glass pane 2a '. In the glass pane 2b 'is a conical to the facade inside decreasing opening 13. In this opening 13 is a bolt member 14, which in this embodiment a attached to the opening 13 plate attached.

FIG. 11 shows a view of the façade inside to an insulating glazing 1 according to the invention with a holding system. The double glazing 1 is also in this version from three 8mm thick laminated safety glass panes 2, 2a ', 2b ', wherein the glass pane 2b' forms the facade inside. About a spacer 3 and a 16mm wide Cavity 4 are the glass sheets 2, 2b 'with the facade outside forming glass pane 2a 'glued. Four glass panes 2b 'of four insulating glazing 1 are in the corner by bolt members 14 to a four-armed bracket 12 attached. By this form of the holder 12 is the visually disturbing impression only on the corner of the Insulating glazing 1 reduced. Furthermore, in the corner area each insulating glazing 1 a quarter-circle Groove with therein running stainless steel wire 10 can be seen. This Stainless steel wire 10 runs around the insulating glazing 1 and thus provides an additional mechanical connection of Glass panes 2a 'and 2b'. The quarter-circle circumferential Stainless steel wires complement each other with four insulating glazings 1 to circles showing the view of a glass facade visually not disturb. The insulating glazing 1 are in Intermediate area provided with seals 16.

It is understood that the above features of the invention not only in the respective specified combination, but also in other combinations or in isolation are usable without the scope of the invention leave.

By insulating glazing invention with holding system, with at least two panes of glass, at least one Glass pane on the façade outside and at least one Glass pane is arranged on the inside of the facade, the invention being characterized in that exclusively and immediately the glass pane on the facade inside about brackets and the supporting structure with connected to the building and a transfer of forces, which act on the glass pane of the facade outside the supporting structure and thus the structure indirectly arranged by means of between the insulating glazings Supporting elements is now possible, insulating glazing be designed so that in compliance with all security relevant Requirements visually disturbing frame and holding devices are largely avoided.

LIST OF REFERENCE NUMBERS

1

glazing

2

glass panes

2a

Outer surface of the glass sheet 2a ', the facade outside is directed

2 B

Outer surface of the glass sheet 2b ', the facade inside is directed

2a '

Glass pane that forms the façade outside

2 B'

Glass pane forming the façade inside

3

spacer

4

cavity

5

Angle / support element

6

constriction

7

retaining element

8th

interface

9

groove

10

wire

10a

safety wire

11

supporting structure

12

brackets

13

opening

14

bolt element

15

PVB sheet

16

seal

Claims (17)

Insulating glazing (1) with a holding system, which is preferably provided for a glass facade, with at least two glass panes (2), wherein at least one outer surface (2a) of a glass pane (2a ') forms the facade exterior and at least one outer surface (2b) of a glass pane (2b' ) the façade inner side forms, whereby the glass panes (2) are connected by at least one spacer (3) and form at least one cavity (4) between the glass panes (2), wherein a supporting structure (11) with holders (12) for the double glazing ( 1), characterized in that the holders (12) exclusively and directly on the at least one, the facade inside forming glass (2b ') attack and at least one support element (5,10) is provided, which exclusively on the insulating glazing (1 ) is connected to the supporting structure, which supports at least the at least one glass pane (2a ') arranged on the outside of the facade , Insulating glazing (1) with holding system according to the preceding Patent Claim 1, characterized in that the at least one support element (5, 10) has at least one elongated connecting element (10), preferably a wire element made of metal and / or plastic, which surrounds the insulating glazing (1 ) circulates in the area of a corner in a closed path. Insulating glazing (1) with holding system according to the preceding Patent Claim 2, characterized in that the at least one elongate connecting element (10) extends at least partially in at least one groove (9). Insulating glazing (1) with holding system according to the preceding Patent Claim 3, characterized in that the at least one groove (9) on the facade outer surface (2a) and / or on the facade inner surface (2b) extends. Insulating glazing (1) with a holding system according to one of the preceding claims 3 to 4, characterized in that the at least one groove (9) on the edge of the insulating glazing (1) extends on one or two sides. Insulating glazing (1) with holding system according to one of the preceding claims 1 to 5, characterized in that at least one safety wire (10a), the insulating glazing (1) rotates at the edge. Insulating glazing (1) with holding system according to one of the preceding claims 1 to 6, characterized in that the at least one support element (5,10) has at least one 2-legged angle (5) whose leg length only over a portion of the edge length of the glazing (1), and the at least one angle (5) is fixed to the insulating glazing (1). Insulating glazing (1) with holding system according to the preceding patent claim 7, characterized in that the width of the angle (5) is adapted to the edge of the insulating glazing (1) that both the facade outside forming glass (2a ') and the facade inside forming Glass pane (2b ') is supported by the angle (5). Insulating glazing (1) with holding system according to one of the preceding claims 7 to 8, characterized in that the at least one angle (5) has constrictions (6) along the legs. Insulating glazing (1) with holding system according to one of the preceding claims 7 to 9, characterized in that the angle (5) with the spacer (3) of the insulating glazing (1) firmly connected, preferably screwed, is. Insulating glazing (1) with holding system according to one of the preceding claims 7 to 10, characterized in that the angle (5) on the facade outside of the insulating glazing (1), preferably exclusively on the outside of the facade, in the corner region has a connection surface (8), which is arranged perpendicular to the leg surface. Insulating glazing (1) with holding system according to one of the preceding claims 1 to 11, characterized in that in the glass pane (2b '), which is arranged to the facade inside, at least one opening (13) is mounted. Insulating glazing (1) with holding system to the preceding claim 12, characterized in that the opening (13) has a smaller towards the inside facade side cross-section, preferably a conical constriction and / or a step-shaped constriction. Characterized in that the holder (12) has means for engaging in the opening (13). Insulating glazing (1) with holding system according to the preceding patent claim 14, characterized in that a means for engaging a with the holder (12) elastically connected bolt element (14). Insulating glazing (1) with a holding system according to one of the preceding claims 12 to 15, characterized in that on the glass pane (2b ') with the opening (13) a further glass pane (2) is fixed, which is arranged in the direction of facade outside. Insulating glazing (1) with holding system according to one of the preceding claims 1 to 16, characterized in that the insulating glazing (1) identifies two cavities (4).

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