DE3905379A1 - MULTIPLE GLASS - Google Patents

Description

The invention relates to a multiple glass pane

• a) at least two parallel surfaces, approximately the same large layered spaced apart stacked glass panes,
• b) a frame-shaped circumferential spacer, the at a distance from the edges of the glass panes is arranged and most of the stan that fills between the two panes of glass,
• c) a sealing compound with high diffusion resistance and soft consistency, especially chewed butyl Schuk, the airtight seal between each because of a glass pane and the spacer is ordered.

The increasing need for glazing with better Heat and noise insulation has been increasing steadily Use of multiple glass panes, so-called insulating glass, guided. These usually consist of two, occasionally also of three or more layers Existing glass panes must be apart be spaced apart to bring about the isolating effect respectively. The space between the individual glass panes must be airtight to prevent intrusion to prevent water vapor, depending on the weather conditions lead to the windows becoming blind can. These airtight spaces between the glass panes can be pumped empty or with  predetermined gases can be filled.

The space between the two panes of glass is covered by a frame-shaped circumferential spacer closed, the distance to the edges of the glass discs is arranged. It exists in common con structures made of aluminum.

To actually have an airtight seal between this aluminum spacer and the glass panes to get, is between a sheet of glass and the spacer a high sealing compound Diffusion resistance arranged, preferably butyl rubber. This material is relatively soft. Thereby can be taken into account the fact that due to of the different surface temperatures the inside of the inner disc and the outside considerable tension between the outer disc these two discs can occur. Through the soft consistency of the butyl rubber are in here certain shifts possible.

The soft consistency of the butyl rubber leads but to the fact that even with storage with low Nei the individual panes inadvertently sliding together and each other move. The insulating glass loses in this way its shape.

In known multiple glass panes is therefore a second edge step made of Thiokol, a tough elastic Sealant, provided. This material is still in able to compensate for the tensions but mutual shifting.

In addition to the edges of the multiple glass pane  edge protection can be attached. This protection consists of hard and thin materials, such as aluminum minium to avoid breakage. Alternatives are also known removable edge protectors, which are used in a Blocking can be removed.

For the production of such known multiple glass discs are therefore a series of processing steps required. To take the first step of Edge bond with the spacer and the seal butyl rubber compound must have a second edge from Thiokol must be provided, then must the edges of the multiple glass pane additionally an edge protector attached and later at Mon days may be removed again. Still it happens occasional breakage.

The object of the invention is therefore a generic appropriate multiple glass pane with improved edges propose protection.

This task is solved by a foam hard, cross-linked plastic that the space outside of the spacer between the glass panes and the edges of the glass sheets radially outward surrounds.

With such a foam, there are several problems solved at the same time: on the one hand there is only one neccessary work step, namely the foaming of the Edge. There is no need to attach the thiokol coating as well as the provision of separate Edge protection.

The foam coating also takes on the function the stabilization of the two or more glass  slices to each other because of hard, cross-linked plastics are soft enough to bind to the glass to worry and so the different tensions to be recorded by the different surfaces temperatures, but also hard are enough to move the glass panes too prevent each other from outside a tolerance limit.

The fact that the different areas with the Foaming are provided in a spatial zu stand together, will be a particularly stable environment foaming achieved.

The function as edge protection and the function as Support the stabilization of the glass panes to each other each other so

Is particularly preferred as hard, networked art a cross-linked polyurethane set. In addition there is a reinforcement with glass fiber or soot particularly cheap. The resulting ar lubricated, cross-linked polyurethane has a particular advantage adhesive properties regarding stability and the degree of strength. There is a firmness of Shore D: 50 to 70.

The foam coating can also be used as a support for the Serve blocks during installation.

The foam is preferably in the corner areas except for the outside of at least one glass pane extends. This further promotes stability protects the particularly vulnerable corners of the Multiple glass pane.  

Uniform, smooth fronts without recessed In architecture, window openings are so far through Adhesions or complicated structures possible be. Glass panes glued to facade parts previously met mainly safety concerns. A in the case of aging glue that comes loose and falls out Glass pane of possibly considerable weight would be a great danger to passersby.

Nevertheless, it would be for the sake of a faster one construction advantageous, glass panes from the outside simple to be able to apply on the facade. It will now with a particularly preferred embodiment of the Invention possible. In particular the area with the expanded foam can be used at the same time be in order to inte- freeze which intervene in counterparts assembly are provided.

The retaining bolts integrated in the foam are seated there extremely stable and can take significant loads resist pulling out. The foaming itself holds the glass panes, especially through the back engage in the circumferential groove between the results in two glass panes outside the spacer.

Through a suitable choice of retaining bolts and counterparts considerable forces can be removed and ent stands a very stable construction.

This makes it possible to have flat facade surfaces without to achieve any approach. The multiple glass panes can be directly from the outside on the walls and facades elements are put on.  

There are no aging problems with adhesives or the like. Of course, these can also be added be set, for example, during the assembly make fastenings. In extreme cases such as particularly heavy glass panes or all in common, support profiles can be used for additional support Lich provided for backup, which also be included in the foam.

Also an integration of seals in the encasing mung becomes possible. This can cause a capillary action be countered, the water up to the Ab Diffuse sealing compound and possibly diffuse through it leaves.

Another preferred feature is that the parts surrounding the edges radially outwards the foam in the corner areas is thicker than in the other areas are trained.

As already mentioned, the corner areas are the more compartment glass panes particularly at risk. By a be preferably thickened foam there can be another Backup. In the intermediate areas can be disregarded what a material and Weight saving leads.

The following is based on an embodiment the invention described in more detail.

Show it:

Fig. 1 is a vertical section through a window frame with the inventive Multiples glazing,

Fig. 2 is a multiple glazing in the non-installed state from the outside and

Fig. 3 from the inside.

In the example shown in Fig. 1, a frame 1 is provided, which interacts with a movable casement 2 . The frame 1 has a supporting frame profile 3 , which in the example shown is made of wood. The load-bearing profile frame 3 is composed of corresponding profile sections in a manner not shown.

The sash 2 also has a supporting frame profile 4 in the example. Between the frame 1 and the sash 2 , a closing gap 5 remains in the shown position, which is closed to the inside of the room by a circumferential seal 6 , which is provided between the supporting frame profile parts 3 and 4 of the frame 1 and 2 .

The frame profile 4 of the casement 2 carries a pane arrangement consisting of a first, inner glass pane 11 and a second, outer glass pane 12 . The lower edge 13 of the inner glass pane 11 and the lower edge 14 of the outer glass pane 12 run parallel and at the same height. The corners 15 of the inner glass pane 11 and the corners 16 of the outer glass pane 12 lie opposite one another. The glass panes are therefore parallel to the surface and approximately the same size and lie in layers, but spaced apart from one another.

A circumferential spacer 17 with a rectangular cross section is arranged at a distance from the edges 13 , 14 of the glass panes 11 , 12 between them. Its distance from the edges 13 , 14 is also approximately the same on the other side edges of the glass panes. It fills most of the distance between the two glass panes 11 and 12 .

A sealing compound 18 with a high diffusion resistance and a soft consistency closes the space between each glass pane 11 or 12 and the spacer 17 in an airtight manner. It is preferably made of butyl rubber.

This creates an airtight interior 19 between the two glass panes 11 and 12 , which is delimited all around by the circumferential spacer 17 . This interior space 19 can be pumped empty of air or filled with a predetermined gas. This prevents the two panes of the multiple glazing from fogging from the inside if this should normally be done due to the physical conditions (temperature, water vapor content).

The edge bond of the multiple glazing with the two glass panes 11 , 12 has outside the spacer 17 with the sealing compound 18 a foam 20 . This foam is made of a hard, networked plastic. For this, a two-component plastic is preferred, in particular cross-linked polyurethane, which is cast on. This polyurethane is reinforced with glass fiber or soot.

The glass industry currently supplies multiple glazings, which have the two glass panes 11 , 12 , the spacer 17 and also the airtight seal from the interior 19 through the sealing compound 18 . The filling with the gas or the emptying of the interior 19 has already been carried out.

The encapsulation 20 extends in the example shown to several areas 21 , 22 and 23 . The area 21 lies between the two glass panes 11 and 12 outside the spacer 17 and thus represents an additional edge cover for the seal.

The area 22 is located radially outside the glass panes 11 and 12 , possibly also outside the area 21 . Both areas 21 and 22 run around the edges 13 and 14 of the glass panes 11 and 12 . Due to the high strength of the material with a Shore density of 50 to 70, the foam 20 also serves as edge protection and support for the block. Damage caused by damaged glass edges 13 , 14 is practically excluded. The hard, cross-linked resin, urethane particular armored and crosslinked poly, is soft enough for connection to the glass panes 11, 12, but also hard enough for supporting such panes 11, 12th The two glass panes 11 , 12 therefore do not slide past one another, even if they are placed or placed somewhere with an incline during temporary storage.

Preferably, in the corners 15 and 16 of the glass panes 11 and 12 , a third area 23 is provided with foam 20 ; this area is also shown in FIG. 1. This ensures a further stabilization of the foam 20 overall and also the multiple glazing in the casement 2 .

This area 23 extends the foam 20 up to the outside of at least one glass pane, preferably in front of the inner glass pane 11 . It protrudes there up to about the height of the spacer 17 .

As can be seen in particular in FIGS. 2 and 3, the parts of the encapsulation 20 which surround the edges 13 , 14 radially outwards are thicker in the corner regions than in the remaining regions. This can save material and weight.

The foam 20 can be formed in different thicknesses in order to meet the respective requirements, such as glass panes with different weight and different dimensions.

The reinforcements in the corners 15 , 16 can also be chosen so that retaining bolts 31 can be integrated in them, which are provided for engaging in counterparts 32 during assembly. These counterparts 32 are in the frame profile 4 of the casement 2 is working.

The holding bolts 31 can be pins made of aluminum or steel or possibly also made of hard plastic.

Multiple glazing designed in this way could also be used with supporting glazing. In this case, the glass panes 11 , 12 would not be arranged in a casement 2 , but in a Festvergla solution.

Seals 33 that are visible from the outside can also be integrated into the encapsulation 20 . This can also be prevented that what can penetrate to and through the sealing compound 18 via a capillary action.

In the example shown, the closing gap 5 is bridged and covered to the outside by a section 41 . The section 41 is held lying freely on the outside of the supporting frame profile 3 of the frame 1 and anchored with the aid of a profile strip 42 . The profile bar 42 engages in an undercut groove 43 of the supporting frame profiles 3 and is in turn overlapped by a sliding guide 11 . The inner glass pane 11 can additionally be held on the frame profile 4 of the casement 2 by a sealing and adhesive tape 51 . This sealing and adhesive tape 51 can be designed as a silicone tape, which also ensures a perfect sealing device in the corners by appropriate soft elastic adjustment.

The foam 20 can, if necessary, for example in the case of particularly heavy glass panes, also contain additional mechanical fuses of the multiple glass pane, which at least partially overlap the outer edge of the outer glass pane 12 . This Si fuses can be designed as holding profiles, which are perforated, for example, for better toothing and are integrated into the foam 20 for the required mechanical mounting. These retaining profiles can interact with the retaining bolts 31 . These profile parts encompassing the edge can be provided along the horizontally running edges of the multiple glass pane either as continuous strips or else as web-shaped sections. With the vertically running edges of the multiple pane of glass, parts of this type can generally be dispensed with, since there is no fear of lateral displacement of the multiple pane of glass and the forces in this direction can be absorbed well by the retaining bolts 31 , even in constantly unfavorable weather conditions or unilateral loads.

Claims (8)

1. Multiple glass pane with

• a) at least two parallel, approximately equally spaced, layered glass panes,
• b) a frame-shaped circumferential spacer which is arranged at a distance from the edges of the glass panes and fills most of the distance between the two glass panes,
• c) a sealing compound with high diffusion resistance and soft consistency, in particular butyl rubber, which is arranged for airtight closure between each glass pane and the standoff, characterized by a foam ( 20 ) made of hard, cross-linked plastic, the space (Be rich 21 ) outside the spacer ( 17 ) between the glass panes ( 11 , 12 ) and fills the edges ( 13 , 14 ) of the glass panes ( 11 , 12 ) radially outwards.

2. Multiple glass pane according to claim 1, characterized in that the hard cross-linked plastic of the foam ( 20 ) is a cross-linked polyurethane. 3. Multiple glass pane according to claim 2, characterized in that the cross-linked polyurethane of the foam ( 20 ) is reinforced with glass fiber or carbon black. 4. Multiple glass pane according to one of the preceding claims, characterized in that the umschäu tion ( 20 ) in the corner regions ( 15 , 16 ) extends to the outside of at least one glass pane ( 11 , 12 ). 5. Multiple glass pane according to one of the preceding claims, characterized in that the edges ( 13 , 14 ) radially outwardly surrounding parts (area 22 ) of the foam ( 20 ) in the Eckbe range ( 15 , 16 ) thicker than in the other areas Chen are trained. 6. Multiple glass pane according to one of the preceding claims, characterized in that in order to foam (20) retaining bolts ( 31 ) are integrated, which are provided for engaging in counterparts ( 33 ) during assembly. 7. Multiple glass pane according to one of the preceding claims, characterized in that in order to foam ( 20 ) seals ( 33 ) are integrated. 8. Multiple glass pane according to one of the preceding claims, characterized in that in the order foaming ( 20 ) holding profiles are integrated.