DE10216425C1 - Insulation glazing for buildings has a holding system with glass panes joined via spacers so that a hollow space is formed between them - 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 double glazing with retaining systems tem, which is preferably provided for a glass facade, with at least two glass panes, at least one Au outer surface of a glass pane the outside of the facade and min at least one outer surface of a glass pane the facade forms the side, with the glass panes over at least one egg NEN spacers are connected and at least one. Form cavity between the glass panes, with a support construction with brackets for double glazing is seen.

Glass is increasingly being used in modern construction set. For energy saving reasons come at all Multi-pane insulating glasses are used, the individual glass panes using spacers are glued. Through regulations and laws such as construction product guidelines and the Construction Products Act are included in Use of glass in construction to meet certain requirements the glass itself and placed on the construction. Before al lem if glass outside in the form of for example Glass facades must be installed, the security of Perso remain in the traffic area of the facade. So must the overall construction should be dimensioned so that under kli matic influences such as wind load and / or snow load none Glass panes can fall down. In addition, at one any breakage of a pane of glass does not occur and heavy fragments fall down, which kill people could. For this reason, a VSG is usually used (Laminated safety glass), as with motor vehicle wind protection  slices, used. With VSG, several become thermal and / or mechanically prestressed individual disks usually with Films, such as PVB (polyvinyl butyl), with each other bonded. By pretreating the individual panes and VSG breaks the laminated glass structure into many small and lightweight individual pieces.

In order to prevent an entire glass pane from falling down, the glass panes are very often held as a filler by frame structures. For example, a holding system for double glazing is described in patent specification DE 36 24 491 C3. In this document, a multi-glazed insulating glazing is shown in Fig. 2, two staggered glass panes ver are attached to the outside of the facade with the supporting structure located on the inside of the facade. This holding system shows an optically distracting edge that surrounds the double glazing. These frame constructions and brackets are optically very annoying because of the transparent glass. It is the wish of many customers to reduce or omit these disruptive frame parts and brackets.

Reference is also made to the published patent application DE 199 39 172 A1. In this document 1a is a composed of two discs glazing is shown in Fig. Discloses, in which the facade outer side forming the glass sheet 2 supported on the one hand by a bonded disc spacer 54 and on the other by an additionally inserted between the panes glued distance piece 53. A disadvantage of this method of holding the outside of the facade form de glass pane, is that such bonds can fail due to frequent temperature changes and thus the glass pane forming the facade outside can fall down after a certain time.

The inventor made it his business, Isolierver Glazes, preferably for glass facades, to be designed in this way that all safety-relevant requirements are met requirements optically disruptive frames and holding devices are largely avoided.

The task is characterized by the features of the first claim solved. Advantageous developments of the invention are Ge subject of subordinate claims.

Accordingly, the inventor suggests insulating glazing with holding system, preferably for a glass facade is seen, with at least two glass panes, with min at least one outer surface of a glass pane is the facade outside and at least one outer surface of a glass pane forms the inside of the facade, with the glass panes over at least one spacer is connected and at least least form a cavity between the glass panes, wherein a supporting structure with brackets for Isolierver glazing is intended to improve in that the Brackets exclusively and directly at the minimum at least one glass pane forming the inside of the facade attack, and in addition at least one support element in front seen, which is only on the Isoliervergla solution is connected to the supporting structure, which at least least at least one on the outside of the facade ordered glass pane supports, the support element the Glass pane forming the outside of the facade and the facade glass sheet forming at least partially around the inside.  

This design of the bracket ensures that the optically disturbing impression of mounts, especially in the Exterior facade area is reduced to a minimum. In addition, the support elements fulfill the task according to the required regulations, each person's own weight Single pane, in the event of a failure of the center Window bonding to be derived from the structure. The support elements can be selected in their dimensions so that this is on the outside and inside of the facade can hardly be seen. The previously optically very distracting frame This bypasses mens systems and creates the Impression of an all-glass facade.

Such a support element is particularly easy to pass through realize at least one elongated connecting element.  

He understands an elongated connecting element elements such as a wire, a cord or a lockable clip element made of metal and / or plastic, which the double glazing in the area of a corner in one circulate closed path. Such a closed path can be rea. by a wire, the ends of which are twisted be lized. This elongated connecting element creates a mechanical connection between the facade exterior term and the facade inside glass pane and thus the legally required mechanical connection of all Panes of glass with the structure. A pure glue represents not a lawful connection.

It is advantageous if the at least one elongated Ver binding element at least partially in at least one groove runs. The groove prevents the elongated connection can slide off. In addition, the groove acts in the In the event of failure of the central glue and under Force through the elongated connecting element, as a predetermined breaking point of the glass pane. Such a groove can particularly easy on the glass surface that the facade exterior surface, and / or on the glass surface that the facade surface is ground in. But the groove can one-sided or double-sided also at the edge of the insulating glazing be attached.

A variant of the holding system can be that the Best support elements from at least 2-leg angles hen whose leg length extends only over part of the edge length of the double glazing. These angles will be attached to the double glazing, for example by a Safety wire that surrounds the double glazing running. The support elements are due to their load-bearing  Function mainly made of metal. Metals due to their thermal conductivity, the above described undesirable effect of thermal bridge formation. For this reason, a limitation of the leg length is the Support elements make sense. The resulting gaps between two adjacent double glazing units can be inexpensively, for example sealed with a transparent silicone become. The support elements transfer in the event of a Failure of the adhesive connection the own weight of the fassa the outside glass panes to the supporting structure and thus to the building. Because of facades partly due to wind pressure and wind suction effects other forces, for example Shear forces acting on the glass panes are transmitted through the 2-leg structure of the support elements a more homogeneous Force transmission to the structure allows.

According to the basic idea of the invention the inventor also suggests that the width of the angle is adapted to the edge of the double glazing, that both the glass pane forming the outside of the facade and also the glass pane forming the inside of the facade through the Support element is supported whereby the angle is not wide is greater than the edge width of the double glazing. hereby are optically disturbing surfaces on the outside of the facade and hardly visible on the inside of the facade.

The inventor has recognized that the support elements are designed in this way It should be ensured that these are not out of the gaps neighboring insulating glazing can fall out. Out for this reason, the inventor suggests along the Schen the length of the support elements must be constricted. the constrictions that line the edge of the double glazing grip, act as a mechanical locking of the support ele  mente. In addition, in these constrictions the randsei Secure all around on the circumference of the double glazing be inserted wire, which thus the support element the double glazing attached.

In a special embodiment, the support elements have at least one holding element per leg. This The holding element can be simply punched or folded over a partial leg surface at the end of the leg or at the leg intersection can be realized. So have insulating glass solutions often have an elastic bond in the edge area between the adjacent panes of glass. In the bond the holding elements can simply be pressed in. A particularly safe method of supporting elements on the insulation Fastening the glazing is a screw connection of the support elements with the spacers of the insulating glazing.

It is very convenient if the support elements in the corner area Have connecting surfaces that are perpendicular to the leg are arranged. These connection surfaces can be on the outside of the insulating glazing, preferably only on the outside of the insulating insulation glazing, be arranged. The connecting surfaces can be as Triangles or quadrilateral surfaces between the Leg of the support elements are welded. Should through a wind suction, for example, the glass pane of the facade the outside of the bond with the spacer loosen the ter, it is prevented that the glass pane as can fall quite a bit. The connecting surfaces cause the glass pane to break. This function on is required by a legal requirement. So far these so-called emergency brackets were mostly full-page surrounding frame executed. In the invention  The connecting surfaces in the corners form the execution required emergency mounts. Because these interfaces are not all around the insulating glazing this is hardly noticeable visually.

An advantageous embodiment of the invention provides that in the glass pane facing the inside of the facade is arranged, at least one opening is made. This Opening can be a hole that leads to the facade has a smaller and smaller cross section, to Example of a conically narrowing hole. The network The structure of the glass pane also enables a layer for layer, step-like narrowing of the cross-section of the opening voltage.

The opening, which can be realized very easily, is fun is the connection point between the bracket and the insulation glazing.

At this point it should be mentioned that adhesive connections are also possible between the bracket and the double glazing tech are technically feasible, but this method is the verb the legal provisions.

The inventor further suggests that in this verb dungsstelle an elastically connected to the bracket Bolt element engages. Because laminated safety glasses, before especially in the area of edges that are very prone to breakage this elastic storage makes sense. The elastic storage can be realized by a rubber sealing element that engage between the contact surface of the opening and the the bolt element is arranged. But also an elastic one Bearing in the form of a vibration damper between one  Bracket for the insulating glazing and the supporting structure is conceivable.

In double glazing with cavities in which there are mostly Filling gases are located, these cavities are airtight to the outside sealed. The opening described above could do this jeopardize the airtight seal of a cavity. From the For this reason, the inventor suggests that the glass pane with the openings according to the invention not directly to a cavity to place adjacent, but another sheet of glass to arrange in between.

As a further improvement, the inventor invented insulation glazing according to the invention with holding system gene to use double glazing, the two or more Have voids. This allows the heat transfer coefficient Efficient of double glazing, generally as a k value or U-value can be reduced. The loss at This reduces heat output per facade area and follows the positive trend towards saving energy. We continue to be positive about the undesirable heat losses ken the support elements of the invention, the one occupy minimal area of the entire facade and this represents only minimal heat or cold bridges len.

Additional features and advantages of the invention result preferred embodiment from the following description Example with reference to the drawings.

The invention will now be described with reference to the drawings are explained. They represent:  

. Fig. 1 to Fig 3 variants of 2- isosceles angle in Various NEN views;

Fig. 4 to Fig. 6 variants of the inventive insulation glazing with angle;

Fig. 7 section through an inventive glazing with groove and wire;

Fig. 8 double glazing with wire that runs in a groove;

FIG. 8a glazing with wire running in two grooves;

Fig. 9 glazing according to the invention with holding system;

Fig. 10 section through the insulating glazing according to the invention with holder and bolt element;

Fig. 11 view from the inside of the facade on an insulating glazing according to the invention with holding system.

Fig. 1 shows an embodiment of the support element of the invention. The support element consists of a 90 ° angle 5 , which was made of a flat material with two equally long approximately 50 mm long legs. At the two leg ends, partial areas are folded over, which form the holding elements 7 . These holding elements 7 can engage in the edge seal of the insulating glazing 1 . In this embodiment, the attachment of this support element can be implemented very simply, for example, by means of a flat metal wire which runs around the circumference of the insulating glass and the angle 5 .

Fig. 2 shows a further embodiment of the support element according to the invention. The structure of the angle 5 corresponds to the structure of the angle 5 from FIG. 1, only in this embodiment, a triangular connection surface 8 is also attached in the vicinity of the leg intersection. This connecting surface 8 acts as an emergency bracket for the glass pane 2 b 'of the outside of an insulating glazing. 1

FIG. 3 shows a further advantageous embodiment of the support element of the invention. In this view, one leg of the 90 ° angle 5 can be seen with the entire leg length. From the second leg, which is perpendicular to the plane of the drawing, only the cross section on the left side of FIG. 3 can be seen. To fasten the angle 5 to an insulating glazing 1 , this special embodiment of the angle 5 has a holding element 7 on the first leg. In addition, two constrictions 6 can be seen on both legs. In these constrictions, two safety wires 10 a can be inserted, which run around the edge of insulating glazing 1 and thus fix the angle 5 to the insulating glazing 1 .

FIG. 4 shows a section through a glazing 1 with Angle 5. The insulating glazing 1 consists of three panes 2 , 2 a ', 2 b', the glass pane 2 b 'forming the inside of the facade. About a spacer 3 and a 16 mm wide cavity 4 , the glass panes 2 , 2 b 'are glued to the outside of the facade glass pane 2 a'. The glass pane 2 b 'is connected via stanchions 12 with the support structure, the brackets 12 and the support structure 11 are not shown in Fig. 4. To the dropping of the glass sheet 2 a countries in an eventual failure of the bond 'to verhin, the angle 5 are mounted between the insulating glazing. 1 The angle 5 shown in FIG. 4 has two constrictions 6 in the region of the cavity 4 . This constrictions 6 prevent such an angle 5 between two insulating glazing 1 can slip. In the right constriction 6 , a stainless steel wire is additionally inserted, which runs around the edge of the insulating glass and fastens the angle 5 to the insulating glass 1 . The width of the angle 5 is chosen so that a Kraftverbin extension of the glass pane 2 a 'with the glass pane 2 b' is guaranteed.

FIG. 5 shows a further possibility of fixing the angle 5 with a double glazing. 1 The Isoliervergla solution 1 corresponds to the structure of the glass panes 2 ago the structure of the insulating glazing 1 from Fig. 4. To attach the angle 5 , this is screwed in the cavity 4 with the spacer 3 of the insulating glazing 1 .

Fig. 6 shows a section through a glazing 1 with Angle 5. The insulating glazing 1 consists of three panes 2 , 2 a ', 2 b', the glass pane 2 b 'forming the inside of the facade. About a spacer 3 and a 16 mm wide cavity 4 , the glass panes 2 , 2 b 'are glued to the outside of the facade glass pane 2 a'. The glass pane 2 b 'is connected via stanchions 12 with the support structure, the brackets 12 and the support structure 11 are not shown in Fig. 6. In order to prevent the glass pane 2 a 'from falling in the event of a glue failure, 1 angle 5 is placed between the insulating glazing. The angle 5 from FIG. 6 has holding elements 7 folded over in the region of the cavity 4 . These holding elements 7 , which claw into the gluing of the glass panes 2 , prevent such an angle 5 from slipping between two insulating glazings 1 . For fastening supply of the angle 5 , here too, the insulating glazing 1 has peripheral safety wire 10 a attached, which can preferably be made of single-core or multi-core made of metal and / or plastic. In this particular version, a single-core flat wire 10 a is used. The width of the angle 5 is chosen so that a force connection of the glass pane 2 a 'with the glass pane 2 b' is ensured.

Fig. 7 shows a section perpendicular to the glass discs have a 2, 2 a ', 2 b' an insulating glazing 1 according to the invention. This insulating glazing 1 is formed by three glass panes 2 , 2 a ', 2 b'. A glass pane 2 a 'forms the outside of the facade and two glass panes 2 , 2 b' bonded together are located on the inside of the facade, only the glass pane 2 b 'forming the inside of the facade. The glass pane 2 a 'is connected to the glass panes 2 , 2 b' by means of a spacer 3 . This creates between the glass panes 2 a 'and 2, a thermally insulating cavity 4th The bracket 12 of the support structure 11 (both not shown in Fig. 7) are exclusively Lich with the glass plate 2 b 'attached. In the glass panes 2 a 'and 2 b' is ground a groove. 9 In this groove 9 is a wire 10 , here a stainless steel wire, inserted and stretched around the insulating glass 1 and drilled ver at its ends. This creates a mechanical connection between the glass pane 2 a 'and the glass pane 2 b'.

Fig. 8 shows a glazing 1 comprising a running in a groove 9 and the glazing 1 umlau fenden, wire 10. In the corner region of the glass pane 2 a ', a groove 9, 2 mm deep and 1.5 mm wide, is ground in a four-circle shape. In this groove 9 a stainless steel wire 10 is inserted which is stretched around the insulating glazing 1 . If the adhesive connection between the glass panes 2 , 2 b 'and 2 a' fails, the dead weight of the glass panes 2 a 'and on this glass pane 2 a' act the forces by means of the stainless steel wire 10 on the glass panes 2 , 2 b 'and thus transferred to the building. The water wire 10 forms the support element in this embodiment. But it can also be brought in addition to a two-leg angle 5 , wherein the wire 10 can run around the two legs and the insulating glass 1 . This results in a particularly safe execution of the glass pane support.

The Fig. 8a shows a further possibility, a wire 10 in the region of the corners of a glazing 1, to attach an I solierverglasung 1. In this embodiment, two grooves 9 are ground in at the edge region of two adjacent edge sides of the insulating glazing 1 .

FIG. 9 shows a view from the inside of the facade of an insulating glazing 1 according to the invention with brackets 12 and supporting structure 11 . The double glazing 1 consists of three glass panes 2 , 2 a ', 2 b', the glass pane 2 b 'forming the inside of the facade. From a spacer 3 and a 16 mm wide cavity, the glass panes 2 , 2 b 'are glued to the outside of the facade forming glass pane 2 a'. Only the glass pane 2 b 'is directly connected to the support structure 11 via the brackets 12 . The glass pane 2 is glued flat to the glass pane 2 b 'with a PVB film. The glass pane 2 a ', which is glued to the glass pane 2 with spacers 3 is additionally secured by the support elements 5 (not shown in FIG. 9) against unintentional falling out.

Fig. 10 shows a section through the glazing 1 with retention system in the plane in which extends the opening for the bolt element 14. The insulating glazing 1 consists of three each 8 mm thick laminated glass panes 2, 2 a ', 2 b', wherein the glass pane 2 'is the b Fassa deninnenseite. The glass panes 2 , 2 b 'are glued to the glass pane 2 a' forming the outside of the facade via a spacer 3 and a 16 mm wide cavity 4 . In the glass pane 2 b 'there is an opening 13 which conically reduces the inside of the facade. In this opening 13 is a bolt member 14 having a shape adapted to the opening 13 of plate in this embodiment, fixed.

Fig. 11 shows a view from the inside of the facade on an insulating glazing 1 according to the invention with Haltesys tem. The insulating glazing 1 also consists in this embodiment of three 8 mm thick VSG glass panes 2 , 2 a ', 2 b', the glass pane 2 b 'bil det the inside of the facade. About a spacer 3 and a 16 mm wide cavity 4 , the glass panes 2 , 2 b 'are glued to the facade glass sheet 2 a' forming. Four glass panes 2 b 'of four double glazing units 1 are fastened in the corner area by bolt elements 14 to a four-armed holding device 12 . This shape of the holder 12 reduces the optically disturbing impression only to the corner region of the insulating glazing 1 . Furthermore, in the Eckbe each insulating glazing 1 is a quarter-circular groove with stainless steel wire 10 running therein. The ser stainless steel wire 10 runs around the insulating glazing 1 and thus provides an additional mechanical connection of the glass panes 2 a 'and 2 b'. The quarter-circular umlau fenden stainless steel wires complement each other in four Isolierver glazing 1 to circles which do not spoil the view of a glass facade. The insulating glazings 1 are provided with seals 16 in the intermediate area.

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

Due to the insulating glazing according to the invention with Haltesys tem, with at least two glass panes, at least one egg ne glass pane on the outside of the facade and at least one ne glass pane is arranged on the inside of the facade, the invention being characterized in that finally and immediately the glass pane on the facade inside with brackets and the supporting structure connected to the structure and a transfer of forces, that act on the glass pane on the outside of the facade the supporting structure and thus indirectly on the structure by means of arranged between the insulating glazing Support elements is made possible, can now insulating glazing be designed in such a way that all safety-relevant requirements optically disturbing frames and holding devices are largely avoided.  

LIST OF REFERENCE NUMBERS

1

glazing

2

glass panes

2

a outer surface of the glass pane

2

a ', which is directed to the outside of the facade

2

b Outside surface of the glass pane

2

b ', which is directed towards the inside of the facade

2

a 'Glass pane that forms the outside of the facade

2

b 'Glass pane that forms the inside of the facade

3

spacer

4

cavity

5

Angle / support element

6

constriction

7

retaining element

8th

interface

9

groove

10

wire

10

a safety wire

11

supporting structure

12

brackets

13

opening

14

bolt element

15

PVB sheet

16

seal

Claims (17)

1. insulating glazing ( 1 ) with a holding system, which is preferably provided for a glass facade, with at least two glass panes ( 2 ), with at least one Außenflä surface ( 2 a) of a glass pane ( 2 a ') the outside of the facade and at least one outer surface ( 2 b ') the facade inner side, forms) of a glass pane (2 b wherein the glass sheets (2) are connected via at least one spacer (3) and at least one cavity (4) Zvi rule form the glass sheets (2), wherein a Tragkon constructive tion (11 ) with brackets ( 12 ) for the Isolierver glazing ( 1 ) is provided, characterized in that the brackets ( 12 ) only and directly on the at least one, the inside of the facade forming glass pane ( 2 b ') and at least one support element ( 5 , 10 ) is provided, which is connected exclusively to the supporting structure via the insulating glazing ( 1 ), which has at least the at least one on the facade exterior side angeord nete glass pane ( 2 a ') supports, wherein the Stützele element ( 5 , 10 ) be the facade outside forming glass pane ( 2 a') and the facade inside forming glass pane be ( 2 b ') at least partially. 2. insulating glazing ( 1 ) with holding system according to the preceding 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 the insulating glazing ( 1 ) revolves in a closed path in the area of a corner. 3. insulating glazing ( 1 ) with holding system according to the preceding claim 2, characterized in that the at least one elongated Ver connecting element ( 10 ) at least partially in at least one groove ( 9 ). 4. glazing (1) with holding system to the preceding Patent Claim 3, characterized according to the at least one groove (9) inner face on the facade outer surface (2 a) and / or on the Fassadenin (2 b) runs. 5. insulating glazing ( 1 ) with 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 ) runs on one or two sides. 6. insulating glazing ( 1 ) with holding system according to one of the preceding claims 1 to 5, characterized in that at least one safety wire ( 10 a) runs around the insulating glazing ( 1 ) on the edge. 7. 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 a two-leg angle ( 5 ), the leg length of which is only part of the Edge length of the double glazing ( 1 ) extends, and the at least one angle ( 5 ) is fixed to the double glazing ( 1 ). 8. insulating glazing ( 1 ) with holding system according to the preceding claim 7, characterized in that the width of the angle ( 5 ) is adapted to the edge of the insulating glazing ( 1 ) that both the outside of the facade forming glass pane ( 2 a ') and the glass pane ( 2 b ') forming the inside of the facade is supported by the angle ( 5 ). 9. 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 ) along the legs has constrictions ( 6 ). 10. 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 ) from the insulating glazing ( 1 ) verbun firmly, preferably screwed. 11. Insulating glazing ( 1 ) with a holding system according to one of the preceding claims 7 to 10, characterized in that the angle ( 5 ) on the outside of the insulating glazing ( 1 ), preferably only on the outside of the facade, in the corner area a connecting surface ( 8 ), which is arranged perpendicular to the leg surface. 12. insulating glazing ( 1 ) with a holding system according to one of the preceding claims 1 to 11, characterized in that in the glass pane ( 2 b '), which is arranged on the inside of the facade, at least one opening ( 13 ) is made. 13. insulating glazing ( 1 ) with the holding system that precedes claim 12, characterized in that the opening ( 13 ) has a cross-section that becomes smaller towards the inside of the facade, preferably before a conical narrowing and / or a step-shaped narrowing. 14. insulating glazing ( 1 ) with a holding system according to one of the preceding claims 12 and 13, characterized in that the holder ( 12 ) has means for engaging in the opening ( 13 ). 15. insulating glazing ( 1 ) with a holding system according to the preceding claim 14, characterized in that a means for engaging is a bolt element ( 14 ) elastically connected to the holder ( 12 ). 16. insulating glazing ( 1 ) with a holding system according to one of the preceding claims 12 to 15, characterized in that on the glass pane ( 2 b ') with the opening ( 13 ) another glass pane ( 2 ) is fastened, which is towards the facade outside is arranged. 17. 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 ).