EP1844209A1

EP1844209A1 - Insulating glass pane and method for the production thereof

Info

Publication number: EP1844209A1
Application number: EP06706282A
Authority: EP
Inventors: Karl Lenhardt
Original assignee: Lenhardt Karl
Current assignee: Plus Inventia AG
Priority date: 2005-01-18
Filing date: 2006-01-18
Publication date: 2007-10-17
Anticipated expiration: 2026-01-18
Also published as: DE102005023506A1; DE502006000750D1; ATE394573T1; CA2595261A1; EP1844209B1; WO2006077095A1; DE102005023506B4; US20080152848A1

Abstract

The invention relates to an insulating glass pane, in which two separate glass panes (2, 3) are held at a distance from one another by a spacer (4), which consists of a strip and which has an inner side (12), and outer side (6) and two flanks (11). A drying agent is provided in conjunction with the spacer (4), and a gap is provided on both sides of the spacer (4) between the spacer and both glass panes (2, 3). This gap is sealed by a primary sealing compound (19) that adheres to the spacer (4) and to the glass panes (2, 3). The invention provides that a compound (18), which contains a drying agent, is applied to the primary sealing compound (19) that seals both gaps and, afterwards, to the side (12) of the spacer (4) (also referred to as inner side (12) hereafter), this side facing the inner space (17) of the insulating glass pane. Said compound (18) is applied so that it covers the inner side (12), that is, as long as the inner side is not already covered by the primary sealing compound (19).

Description

Insulating glass pane and method for its production

Die.Erfindung the purpose of improving an insulating glass with the features specified in the preamble of claim 1. Such an insulating glass pane is the subject of DE 10 2004 020 883.2.

In such a glass pane, two individual glass panes are held at a distance by a spacer formed from a profile bar and adhesively bonded to it by means of a sealing compound, hereinafter also referred to as primary sealing compound. The primary sealing compound adheres the two flanks of the spacer tightly to the two glass panes and seals the interior of the insulating glass against the ingress of water vapor and optionally - in the case of filled with a heavy gas insulating glass panes - against losses of heavy gas. As the primary sealing compound is mainly a polyisobutylene (butyl rubber) is in use, with which one can achieve a sufficient seal against the diffusion of water vapor. Polyisobutylenes are thermoplastic, adhesive substances. In addition to their task to seal the interior of the insulating glass pane, they also serve the task of producing a temporary bond between the spacer and the two glass panes when assembling an insulating glass pane, with which it is glued along its edge.

However, since polyisobutylenes are thermoplastic, they are not suitable for producing a permanently strong mechanical bond between the glass sheets of the insulating glass pane. Rather, it may be effected with a hardening secondary sealant by applying it between the glass sheets and covering either the entire outside of the spacer so that it extends uninterrupted from one glass sheet to the other glass sheet, or by two strands from the secondary one Sealant are formed, one of which connects the one glass with the spacer and of which the second connects the other glass with the spacer, the outside of the spacer holder can remain partially or completely uncovered. As a secondary Sealants are hardening two-component plastics commonly used, in particular polysulfides, polyurethanes and silicones.

On the inside of the spacer, in the case of the insulating glass pane, which is the subject of DE 10 2004 020 883, a mass is applied which contains a desiccant, in particular molecular sieves (zeolites). Preferably, this mass immediately and tightly adjoins the primary sealing compound, which seals the two gaps between the glass sheets and the spacer. The desiccant-containing mass absorbs moisture and binds it, which is present in the interior of the insulating glass, and captures from outside into the mass of water vapor diffusing and binds him. This mass preferably covers the interior of the insulating glass facing side of the spacer from, as far as it is not already covered by primary sealant. To the outside, the primary sealing compound, preferably immediately adjacent to it, optionally adjoins a hardening secondary sealing compound which connects the two glass sheets directly or indirectly to one another and produces a permanent, mechanically strong bond between the glass sheets. In a direct connection, the secondary sealant extends from one glass sheet over the outside of the spacer to the other glass sheet. An indirect connection can be made by two separate strands of secondary sealing compound, one of which connects one glass pane and the other connects the other glass pane to the spacer.

If the primary sealant is selected so that it can permanently effect the mechanical bond of the glass panes required for an insulating glass pane, then a secondary sealant is not required. Such a sealant which meets the requirements of both a primary and a secondary sealant can be obtained, for example, by a blend of a thermoplastic component which has a good water vapor diffusion sealing effect with a durable curing component used for the solid mechanical composite provides. It is known to divide the interior of an insulating glass pane with one or more rungs in order to obtain the appearance of a lattice window. In insulating glass panes, in which the spacer is formed from metallic hollow profile bars whose edges are coated with a sealant and glued in this way with the two glass sheets of insulating glass, it is known to mechanically connect a prefabricated rung frame with the prefabricated metallic spacer frame. It is known to connect the rung frame with the metallic spacer frame in that from the outside of the spacer frame forth screws or nails are driven into end pieces made of plastic, which are provided at the ends of the rungs. However, this measure leads to a reduction in the quality of the insulating glass pane, because there is an increased risk for the diffusion of water vapor at the perforated points of the spacer frame.

From EP 0 857847 B1 an insulating glass pane is known, which has a thermoplastic spacer, which is extruded directly onto one of the two glass sheets of the insulating glass pane. Only then can a prefabricated rung frame be positioned in the area surrounded by the spacer and thereby connected to the spacer, that on the rungs slidably arranged end pieces are moved against the spacer until they engage in this. Since the spacer is still soft and sticky in this phase, only a very small force may be exerted on the spacer so as not to deform it. Therefore, EP 0 857 847 B1 discloses cutting on the end pieces which can easily penetrate into the soft spacer. Positioning the rung frame in the area surrounded by the spacer is difficult. An incorrect positioning deforms the still soft spacer and can not be undone. The risk of incorrect positioning is great, because rung frames are labile, mobile structures that are only stabilized by the connection with the spacer.

From GB 2 242699 A it is known, in an insulating glass pane with a spacer made of thermoplastic solid material, which is prefabricated as a strand and may include a metal strip for stiffening to use a rung frame, which is glued by means of foot parts with the inside of the spacer. The foot portions are slidably mounted at the ends of the rungs and have a foot plate which is moved against and glued to the inside of the spacer after the rung frame has been positioned in the space bounded by the spacer. Also, this operation is complicated and cumbersome for the reasons mentioned above and the bonding is difficult, because only with little pressure on the spacer can be acted on, because this is otherwise deformed, in particular tilts.

The present invention has for its object to provide an insulating glass, which is particularly suitable while avoiding the aforementioned disadvantages and without jeopardizing the tightness of the insulating glass for the installation of sprouts.

This object is achieved by insulating glass with the given in claim 1 features. Methods for producing such an insulating glass pane SHfidHf ^ effV \ ftsi5räelren ^ Hdfid - ^ - af ^ egeb invention are subject of the dependent claims.

In the insulating glass according to the invention two individual glass sheets are held by a spacer formed from a profile bar at a distance, which has a the interior of the insulating glass bounding wall with an inner side, an inner side facing away from the outside and two flanks, the inside and the outside of the profile bar of extending one flank to the opposite flank, in conjunction with the spacer a desiccant is provided on both sides of the spacer between this and the two glass sheets, a gap is provided, which is sealed by a sealing compound which adheres to the spacer and the glass sheets , And one or more rungs inserted into the spacer and indirectly or directly on or in a holder on the inside of the distance adhering mass, in particular sealant are anchored, without this up to the inside of the To penetrate profile bar, wherein the mass preferably contains a desiccant.

This has significant advantages: The sealant, which is preferably thermoplastic, can be applied to the spacer in a soft and sticky state and does not have to make any contribution to the dimensional stability of the spacer, since it is supported by the spacer formed from a profile bar.

When anchoring the rungs on the spacer can - unlike a spacer, which by placing a thermoplastic strand on a

Glass pane is formed, a much higher force can be exerted without the

Shape of the spacer adversely affect, because the sealant, which is used for anchoring the sprouts, is characterized by the from a

Profile bar formed spacers well supported. Since the spacer is formed from a profile bar, it can be prefabricated because it has enough inherent stability to be handled independently of a glass sheet.

One or more rungs can be connected to the spacer while it is not yet on a glass sheet. Separate fasteners such as screws or nails, which are otherwise used for attaching sprouts in metallic spacers can be omitted. The sealant can serve directly as a fastener.

The sealant also provides a significant contribution to the sealing and thus the life of the insulating glass pane, and in particular when it extends, as preferred, from one glass to the other glass over the entire inside of the spacer.

The anchoring of the sprouts can be done solely by the fact that the

Sprossenenden or separate foot parts, which are provided for the sprout ends, pressed onto the sealant or pressed into it, but without penetrating them to the inside of the profile bar, so that the sealing effect of the sealant is maintained.

The foot parts can be formed over a large area and pressed firmly into the sealant, so that there is a good anchorage both by the large-area connection and by the strong impression. The support of Sealant through the profile bar, which can be assumed to be rigid, makes this possible. Since the rungs can be installed in the spacer, as long as it is not glued to a glass pane, the spacer can always be supported on its full length on one of its outer sides by a solid base, while foot parts for the rungs are pressed onto the sealant. The pressure can be so great that even if the foot parts have a plate with which they are placed on the sealant, they can be pressed into it to such an extent that it not only produces an adhesive bond but also a positive connection between the sealant and the foot part comes. Such a positive connection can be facilitated by the fact that the plate recesses and / or apertures, which receive displaced sealant.

The foot parts have expediently a protruding from this connection device. This connecting device establishes the connection to the usually hollow rung. For this purpose, inserted in the rung expediently an adapter which is fixed in the hollow end of the rung and receives the protruding from the foot part connecting device, which may be a rod in the simplest case, which is frictionally received by the adapter. A connection of the foot part with the adapter by plugging and / or Klippsen is preferred. The foot part preferably has a plate from which protrudes the connecting means, which is located on the side of the plate which faces away from the sealant.

The use of an adapter has the advantage that it can always be designed the same for rungs with different cross-sectional shape with respect to the receptacle for the protruding from the plate of the foot connection means. You can then use the same foot parts for different sprouts, which is favorable for a low-cost and efficient frame production. The connecting means, which has the adapter for connection to the foot part, can be designed in many ways. You can intervene in a formed on the foot part connecting device. But it is also possible that a formed on the foot part connecting device engages in the adapter, which to this purpose may have a recess as a connecting means; this possibility is preferred.

Especially when the applied to the inside of the spacer sealant extends from the primary sealant on the one edge of the spacer to the primary sealant on the other edge, any leaks in the spacer do not or less adversely affect the sealing of the insulating glass. In the case of insulating glass panes of conventional construction, this is different: there any leaks, for example pores or cracks or gaps, which can occur in particular in the region of the corners and in the area of the joint where the ends of a profile bar from which the spacer is formed, have an effect. Coincidentally, devastating, conventional secondary sealants, which are the only ones in the art to mask such leaks in the spacer, are unable to prevent the ingress of water vapor as would be required To achieve several years lifetime of the insulating glass pane.

If the desiccant-containing sealant is applied to the inside of the profile bar, the quality requirements for profile bars, from which the spacers are formed, can be reduced because the profile bars only have to fulfill a mechanical task, namely the glass panes of the insulating glass pane under their typical operating conditions and loads to hold at their predetermined distance and to connect with one or more sealing or sealing compounds. It can therefore be used very inexpensive profile bars that can be optimized for minimal heat transfer. It can even be used foamed profile bars, which are characterized by a particularly good thermal insulation with good mechanical stability.

The invention is suitable for spacers made of different materials and in many different cross-sectional shapes. In particular, the invention can also be implemented with all conventional profile bars customary for frame-shaped spacers, even with the particularly frequently used box-shaped hollow sections made of steel or aluminum, but also with a cross-sectionally U-shaped or C-shaped metal or plastic profiles or with metal profiles, as they are known for example from DE 202 16 560 U1. Particularly preferred is the use of hollow profile rods made of plastic.

The desiccant-containing sealant extending from one glass sheet to the other glass sheet can be selected to perform all the functions that the primary sealant performs in a conventional insulating glass sheet: it can form a water vapor barrier as a primary seal. It can also serve as an assembly aid in assembling the insulating glass pane by making a preliminary bond by gluing the spacer to the two glass panes. In addition occurs due to the storage of dry by means of the ability to absorb water vapor.

The primary sealing compound can also be the basis for the desiccant-containing sealant. The two masses can also agree. Thus, as a desiccant-containing sealing compound, the thermoplastic material with integrated desiccant matrix can be used, with which the thermoplastic spacer is formed in TPS® insulating glass panes. This material is also well suited for purposes of the invention. It can also be used between the glass panes of the insulating glass pane and the flanks of the spacer holder instead of a desiccant-free sealing compound. It is also advantageous to use a primary sealing compound, for example a polyisobutylene, as a basis for the desiccant-containing sealant and to concentrate the desiccant in the interior of the insulating glass facing sealing compound, but the applied to the flanks of the spacer sealant but poor in desiccant or entirely form free of desiccant. The desiccant need not be distributed over the entire width and length of the inside of the profile bar in the desiccant-containing sealant. It can, for. B. concentrated on a strip which is narrower than the inside of the profile bar.

The profile bar can already be coated before it is formed into a frame-shaped spacer. This allows a very efficient linear operation with a minimum of mechanical effort. The combination of desiccant-containing sealant and primary sealant is best applied in a width on the inside of the spacer, which exceeds its width, so that it extends to the flanks of the spacer holder so that it is compressed upon compression of the glass sheets and flat to the Glass panels sticks. So that it comes to the compression, the desiccant-containing sealant on the inside of the spacer does not adhere to the entire surface. Preferably, the combination of desiccant-containing sealant and primary sealing compound is rather applied to the spacer or on a profile bar forming it, that it covers the inside, which faces the interior of the insulating glass pane, and also a strip of flanks. This ensures that the combination of desiccant-containing sealant and primary sealant receives enough pressure when squeezing the glass panes against the spacer at least in the flanks to gapless with the

Stick spacer edges on one side and with the glass panes on the other side. The combination of desiccant-containing sealant and primary sealant thus provides at least a preliminary bond between the glass sheets and the spacer. The composite is completed, if necessary, by a secondary sealant. This can extend from the one glass sheet without interruption on the outside of the spacer away to the other glass. In order to produce the required mechanical bond permanently, however, it is sufficient to connect the glass sheets with the secondary sealing compound only indirectly. For this purpose, one can bring them in the form of two separate strands, one of which connects the spacer with the one glass and the other strand the spacer with the other glass. This saves secondary sealing compound and reduces the heat transfer in the area of the spacer.

The profile bars from which the spacers are formed may be conventional metallic hollow profile bars. Preference is given to profile bars made of plastic, because in these sufficient mechanical stability, a low heat transfer coefficient and low cost can be realized simultaneously. It must be on the Appearance of the profile bar no consideration, since it is invisible anyway with built-in insulating glass.

As a cross-sectional shape of the profile bars from which the spacers are formed, especially box-shaped hollow profiles and solid profiles come into question. In the simplest case, the profile bar in cross section is a rectangle with the lowest possible height in order to keep the material costs and the heat transfer coefficient low. The minimum height depends on the fact that the legs of the spacer, the required compressive strength and security against tipping is achieved and that applied to the edges of the profile bar primary sealant or the combination of desiccant-containing sealant and primary sealant sufficient resistance to diffusion of water vapor in the insulating glass pane offers. With a height of the profile bar of 4 mm achieves already useful results.

A convenient way to use a solid profile is to form the profile bar from a foamed plastic, which combines sufficient mechanical stability with low heat transfer coefficient and low cost.

Another possibility is to form the spacer from profiled bars, which have a U-profile in cross-section, but the back of which, unlike the prior art known from US Pat. No. 6,470,561 B1, does not form the outside but the inside of the spacer. If according to the invention not only the primary sealing compound or a part of the combination of primary sealing compound and desiccant-containing sealing compound, but also the secondary sealing compound is applied to the flanks of such a U-shaped profile rod, the interior of the U-profile on the outside of the spacer of secondary Sealant completely free. At most, at the corners of the spacer, a subsequent sealing of the insulating glass pane by introducing sealant, in particular primary sealant, may be required.

In order to find the places where the rungs are to be anchored easily, one can see the surface of the desiccant-containing mass at the Mark mark provided, for example, by an impression or by means of an inkjet printer.

In an insulating glass pane according to the invention with a rectangular outline, the spacer can be formed from four profile bars, which are connected to one another by rectangular angled connectors. It is then necessary to ensure that the primary sealing compound or a combination of desiccant-containing composition and primary sealing compound is applied without gaps at the corners. This is easier to achieve if the distance holder has corners, which are not formed by connectors, but by Bregen a profile bar. This is therefore preferred for purposes of the invention. The bending of metallic hollow profiles or metallic U-profiles to a frame-shaped spacer for insulating glass panes is state of the art. But also plastic profile rods can be bent into a frame-shaped spacer. An example is disclosed in DE 102004 005 354 A1 and in my German patent application No. 10 2005 002 284.7 filed on the same day as the present patent application entitled "Spacer for insulating glass panes and method for its production", to which reference is hereby made.

When the spacer is coated with a combination of desiccant-containing mass and primary sealant and assembled with inserted rungs, it is attached to a first glass sheet so that it adheres to it in the vicinity of the edge of the glass sheet. Then a second glass pane is attached to the spacer parallel to the first glass pane, so that it also adheres to the second glass pane. The thus assembled semi-finished insulating glass pane is pressed to its predetermined thickness. The attachment of the spacer holder can be done by hand or by machine. For this purpose, suitable devices are state of the art. The assembly and compression of the insulating glass pane are state of the art. Finally, when the insulating glass pane is only provisionally held together by the desiccant-containing composition and / or the primary sealing compound, the spacer is finally joined to the two glass panes by applying a hardening secondary sealing compound. This can be done as in the prior art so that the secondary sealing compound from the a glass sheet is applied without interruption to the other glass on the outside of the spacer, see for example DE 28 16 437 C2. However, it is also possible to spray two separate strands of the secondary sealing compound in two joints formed between the spacer and the two adjacent glass panes, as disclosed, for example, in US Pat. No. 5,439,716. Finally, it is possible to apply a secondary sealant to the primary sealant adjacent the two flanks of the hollow section bar before inserting the diverter between the two panes of glass.

Embodiments of the invention are illustrated in the accompanying drawings. Therein, identical or corresponding parts are designated by matching reference numerals. In describing the examples, further features and advantages of the invention will become apparent.

1 shows a section of a hollow profile rod in an oblique view, which has a recess for forming a right-angled corner,

FIG. 2 shows the hollow profile rod in a view as in FIG. 1 after the insertion of an angle piece which is still in an extended position,

FIG. 3 shows the hollow profile rod from FIG. 2 in an oblique view after coating with sealant and adhesive,

Figure 4 shows the hollow profile bar of Figure 3 after folding a right-angled corner,

Figure 5 shows the corner angle of Figure 2 in a side view, the

Figures 6 to 8 show at longitudinally cut hollow profile rod, how to

Can insert angle piece of Figure 5 in the hollow section bar shown in Figure 1,

FIG. 9 shows the formation of a corner in the hollow profile bar shown in FIG. 8, FIG. 10 shows schematically in a longitudinal section through the hollow profile bar a frame-shaped spacer which has been formed with angle pieces,

FIG. 11 shows a cross section through a coated hollow profile rod according to FIG. 3,

FIG. 12 shows, in a representation as in FIG. 11, the coated hollow profile rod with a foot part anchored thereto for a rung,

FIG. 13 shows the section of the hollow profile bar provided with a foot part according to FIG. 12 in a side view,

FIG. 14 shows the section of the hollow profile bar with the foot part according to FIG. 13 in a plan view,

FIG. 15 shows the section of the hollow-section bar from FIG. 14 in an oblique view during the feeding of a rung;

FIG. 16 shows a longitudinal section through the lower end of the rung according to FIG. 15,

FIG. 17 shows a longitudinal section through the lower end of the rung according to FIG. 15 after being placed on the foot part

Figure 18 shows a cross section through an edge portion of an insulating glass pane with a spacer according to Figure 11, and

FIG. 19 shows a modification of FIG. 18.

FIG. 1 shows a section of a hollow profile bar 1 with an outer wall 2, with two flanks 3 and 4 and with an inner wall 5 parallel to the outer wall 2. At the transition from the flanks 3, 4 to the inner wall 5 there is respectively a groove 6 and 7. The outer wall 2 is on both sides via the flanks 3, 4 via. Of the projecting part 8 of the outer wall 2 can either determine the distance between two glass panes, which are assembled with the interposition of a spacer formed from the hollow profile bar 1 to an insulating glass pane (Figure 19), or can serve to rest against the edge of the glass panes (Figure 18). Preferably, the hollow profile bar 1 is made of plastic and can be produced by extrusion.

At the points of the hollow profile bar 1, on which a corner is to be formed, the hollow profile bar 1 is provided with a recess 9 which extends from the inner wall 5 to the flanks 3 and 4. In the flanks 3 and 4 there are two mutually congruent opposing parts 10 of the recess 9, which have the shape of a rectangular miter cut, the top of which is equal to the inside of the outer wall 2 and determines the position of a bending axis 12, which bend the corner is. On both sides of the miter cuts in the flanks 3 and 4, the inner wall 5 is removed over a predetermined length in its entire width, including the grooves 6 and 7. The length of these lying in the inner wall 5 parts 11 of the recess 9 is preferably chosen to match.

Before bending a rectangular corner in the hollow profile bar 1, a foldable angle piece 13 is inserted into the recess 9, which is shown in Figure 2 inserted into the hollow profile bar 1, wherein the angle 13, which is not seen in Figure 2, on both sides the recess 9 still extends slightly below the inner wall 5.

FIG. 5 shows the angle piece 13 used in FIG. 2 in a side view. The angle piece 13 consists of two equal-length legs 14 and 15, which are connected by a foil joint 16, which is arranged on the outside of the angle piece 13. The outside of the angle piece 13 is that side which faces the outer wall 2 of the hollow profile bar 1 when the angle piece 13 is inserted into the hollow profile bar 1. The two legs 14 and 15 have directed against the outer wall 2 of the hollow profile bar flexible lamellae 17, which protrude a little above the foil joint 16. The inside of the legs 14, 15 is - apart from an insertion bevel 18 at the tips of the legs 14, 15 - flat and extends in the extended position of the Elbow 13 parallel to the outside of the foil joint 16. The height of the legs 14 and 15 is selected and matched to the clear height of the hollow profile bar 1, that the angle 13 in the extended position with its foil joint 16 of the outer wall 2 and facing away from the foil hinge 16 Side of his legs 14 and 15 of the inside of the inner wall 5 abuts, as shown in Figure 8. Since the lamellae 17 protrude slightly beyond the outside of the foil joint 16, these are slightly bent when the angle piece 13 is inserted and thereby bring about a backlash-free seating of the legs 14, 15 between the outer wall 2 and the inner wall 5 of the hollow profile bar 1.

On the side facing away from the foil hinge 16 side of the legs 14 and 15, a respective stop 14a and 15a is formed by the height of the legs 14 and 15 is increased stepwise approximately to the thickness of the inner wall 5 in the vicinity of the foil joint 16. The stops 14a and 15a are the two edges 19 and 20 facing, which extend the running in the inner wall 5 parts 11 of

Narrowing recess 9 and extend transversely to the longitudinal direction of the hollow profile bar 1 from the one flank 3 to the opposite edge 4. The position of the stops 14a and 15a is matched to the length of the recess 9 so that the stops 14a and 15a are close to the edges 19 and 20. As a result, the center of the foil joint 16 is centered on the intended bending axis 12.

Each of the two legs 14 and 15 has on one half of its width in the vicinity of the foil joint 16 has a recess 21 which is open on its side facing the opposite leg 15, 14 side. On the other half of their width, legs 14 and 15 are in the neighborhood of

The two hooks 22 have in opposite directions, namely in the direction of the tip of the legs 14 and 15. The hook 22 of each leg 14, 15 is in each case the recess 21 in the other leg 15, 14 opposite. The hooks 22 are formed and arranged so that they engage in the opposite recess 21 when the two legs 14 and 15 are pivoted about the foil joint 16. By the positive engagement in the recesses 21, they fix the two legs 14 and 15, including a right angle. The foil hinge 16 is preferably formed so that it generates a restoring force in the bent state, which causes the hooks 22 are pressed against the wall of the recess 21, which additionally stabilizes the corner.

The angle piece shown in Figure 5 can be used in the hollow profile bar 1, as shown in Figures 6 and 7. For this purpose, the angle piece 13 is clamped on the film hinge 16 between a wedge-shaped abutment 23 and a finger 24. The two legs 14 and 15 are pivoted by two further fingers 25 and 26 against the abutment 23. The tips of the legs 14 and 15 are then approximated to each other so far that they can be inserted into the recess 9 (Figure 6). The abutment 23 is then removed and the fingers 24, 25 and 26 are approximated in the direction shown by the three arrows in Figure 7 the hollow profile bar 1. As a result, the angle piece 13 is pressed with simultaneous spreading in the hollow profile bar 1, wherein the legs 14 and 15 are temporarily bent by the fingers 25 and 26 (see Figure 7). The insertion of the angle piece 13 is completed when it is in an extended position in the hollow profile bar 1. The protruding portions of the legs 14 and 15 via the stops 14a and 15a are then below the inner wall 5, as shown in Figure 8.

Is in the recesses 9 for all four corners of a spacer, an angle 13 used in an extended position, the hollow profile bar 1, while it is still in an elongated form, on the interior of the insulating glass facing side of the inner wall 5, hereinafter also referred to as the inside continuously coated with a sealant 27 and on the flanks 3 and 4 throughout with a secondary sealant 28, which can harden. For this purpose, the hollow profile bar 1 is linearly moved past one or more nozzles, from which the sealing compound 27 and the secondary sealing compound 28 can emerge controlled in synchronism with the movement of the hollow profile bar 1. How such a thing can be carried out is described, for example, in DE 10 2004 020 883, to which reference is hereby expressly made. The sealing compound 27 is intended later to prevent the diffusion of water vapor into the insulating glass pane into which the spacer to be formed from the hollow profile bar 1 is installed. The sealant 27 is made of, for example, a material based on polyisobutylene; First, it serves as a primary sealant and, second, it preferably contains a desiccant in powder form. The sealant 27 covered the entire inner wall 5 and extends laterally beyond this so far that it also extends beyond the alignment of the flanks 3 and 4 and at least partially also still the grooves 6 and 7 fills. The secondary sealing compound 28, which is preferably a reactive hot melt, is applied continuously to the sealing compound 27 subsequently to the flanks 3 and 4, preferably through nozzles which are located shortly after a nozzle for applying the sealing compound 27 come into use. This has the advantage that the already applied sealing compound 27 constitutes a limit to the application of the secondary sealing compound 28 and that the application of the sealing compound 27 can be controlled independently of the application of the secondary sealing compound 28, in view of different properties such as toughness and compressibility the masses may be beneficial.

If the hollow profile bar 1 is coated with the sealing compound 27 and the secondary sealing compound 28 (FIG. 3), then it can be bent or folded at the locations provided for forming the corners of a frame-shaped spacer, overcoming a restoring force originating from the foil joint. This is shown in Figure 9 using the example of an uncoated hollow profile bar 1 to show how the hooks 22 engage in the recesses 21 and thereby fix the legs 14 and 15 at a right angle to each other. The positive engagement of the hook 22 in the associated recess 21 prevents a greater angle than 90 ° between the two legs 14 and 15. After the engagement of the hooks 22 in their associated recesses 21 define between the legs 14, 15 effective stops another Reduction of the angle. As a result of the bending or folding of the corner, excess sealant 27 and secondary sealant 28 are partially pressed into cavities which are present in the region of the corner and are partially displaced onto flanks 3 and 4, as shown in FIG. This is desirable because it contributes to the sealing of the spacer in the area of the corners. An excess of sealant 27 and secondary sealant 28 on the flanks 3 and 4 is pressed during subsequent installation of the spacer in an insulating glass by the glass sheets against the flanks 3 and 4 and in the corner, which favors the formation of a hermetically sealed corner yet again , Are all four corners bent, are the beginning and end of the hollow profile bar 1 opposite each other and are connected by a straight connector 35 together, which is inserted before bending or folding in one end and then in the other end of the hollow profile bar 1. Figure 10 shows the internal structure of a frame-shaped spacer with corner angles, for reasons of clarity, the coating with a sealant 27 and with a secondary sealant 28 was not shown.

A spacer, which is formed from a hollow profile bar 1, the inner wall 5 is coated with a sealant 27, as shown for example in Figure 11, is particularly well suited to install one or more rungs 36. For this purpose, a foot part 37 is pressed into the sealing compound 27, without piercing the layer lying on the inner wall 5 of the sealant 27, so that the inner wall 5 remains coated over the entire surface, which is advantageous for a water vapor-tight closure of the insulating glass pane. By pressing in the foot part 37, a corresponding amount of the sealing compound 27 is displaced and rises at its edges, so that there is a toothing between the sealing compound 27 and the foot part 37. Since sealants such as polyisobutylene are sticky, the toothing between the sealant 27 and the foot 37 still adds a desired adhesive effect. The toothing between the sealing compound 27 and the foot part 37 is particularly good if the foot part 37 has a plate 38 which is provided with openings 39, as shown in Figure 14. In this case, the sealant 27 is also displaced into the openings 39 and leads to a particularly intimate toothing with the foot part 37. On the plate 38 is a connecting device 40, in which it is a two-legged fork pointing in opposite directions barb 41st is. The fork 40 can be snapped into a matching receiving part 42, which is in the end of the hollow rung 36. In the receiving part 42 may be a plastic molded part, the outer contour of the inner contour of the rung 36 is adjusted and has lamellae 43 which are bent when inserting the receiving part 42 into the rung 36 to the end of the rung 36 out and accordingly a pulling out from the rung 36 oppose increased resistance. The receiving part 42 has an inner contour, which is suitable for all possible sprouts 36 is the same. This has the advantage that one can get by with a single foot part 37 for all possible rungs 36, which can differ in their cross section. The receiving part 42 serves as an adapter.

In the receiving part 42, an undercut 44 is provided, behind which the barbs 41 can engage resiliently.

While the stretched hollow profile bar 1 is being coated in the pass, the coating may be marked at the locations where a rung 36 is to be based, for example by an ink jet printer. At the marked points, the foot part 37 can be pressed by hand into the sealant 27, while the hollow profile bar 1 is not yet bent and still lies on a stable surface. Alternatively, the foot parts 37 can also be set automatically by means of a numerically controlled handling device; in this case, a prior marking of the places where the foot parts 37 are to be set, dispensable. For example, the rungs 36 may be placed on the foot portions 37 shortly before the final closure of the spacer, see FIGS. 15 and 16.

Figure 18 shows a cross section through a portion of an insulating glass pane consisting of two individual glass sheets 45 and 46, between which there is a frame-shaped spacer, which is formed from a hollow profile bar 1, previously, as shown in Figure 11, with a sealant 27 and was coated with a curing adhesive 28. The hollow profile bar 1 terminates with the edges of the glass sheets 45 and 46, wherein the protruding parts 8 of the outer wall 2 cover the edges of the glass sheets 45 and 46, abut them and protect them from chipping.

The insulating glass pane illustrated in FIG. 19 differs from the insulating glass pane illustrated in FIG. 18 in that the protruding parts 8 of the outer wall 2 of the hollow profile bar 1 do not serve to protect the edges of the two glass panes 45 and 46. Rather, the protruding parts 8 of the outer wall 2 between the two glass panes 45 and 46 and thereby limit The distance and the minimum thickness of the coating of the flanks 3 and 4 of the hollow profile rod 1. The outer wall 2 of the hollow profile bar 1 is flush with the edges of the glass sheets 45 and 46, so that there is no edge joint between them, which would still have to be sealed.

LIST OF REFERENCE NUMBERS:

1. hollow profile bar

2. outer wall 3. flank

4th flank

5. inner wall

5a. the inside of the insulating glass pane facing side (inside) of 5 6. groove

7th groove

8. supernumerary part of 2

9. recess

10. Parts of the recess in FIGS. 3, 4 11. Parts of the recess in FIG

12. bending axis

13. Elbow

14 thighs of 13 14a. Stop 15. thighs of 13

15a. attack

16. Foil joint

17. lamellas

18. Insertion slope 19. Edge

20th edge

21 recess

22. Hook

23. abutment 24. fingers

25. Finger

26. Finger

27. Sealant, primary sealant

28. secondary sealant 35. straight connector

36th rung

37th foot part

38. Plate 39. Breakthroughs in 38

40. Connection device

41. Barb

42. receiving part, adapter

43. Slats 44. Undercut

45. glass pane

46. Glass pane

Claims

Claims:

1. insulating glass pane, in which

• Two individual glass panes (45, 46) are held at a distance by a spacer formed from a profiled bar (1), which defines the interior of the

Insulating glass wall delimiting wall with an inner side (5a), one of the inside

(5a) facing away from the outer or outer wall (2) and two flanks (3,4), the inner side (5a) and the outer or outer wall (2) of the profile bar (1) from one flank (3) to the opposite Flank (4) extend, • in conjunction with the spacer a desiccant is provided,

• On both sides of the spacer between this and the two glass panes (45,46) is provided a gap which is sealed by a sealing compound which adheres to the spacer and the glass sheets (45,46),

• and one or more rungs (36) are inserted into the spacer, characterized in that on the inside (5a) of the spacer holder on this adhesive mass, in particular a sealant, is arranged and that the rungs (22) directly or indirectly are anchored on or in the mass without penetrating them to the inside (5a) of the profile bar (1).

2. Insulating glass pane according to claim 1, characterized in that on the inside (5a) of the spacer adhering mass contains a desiccant.

3. Insulating glass pane according to claim 1 or 2, characterized in that the rungs (36) with separate foot parts (37) are connected, which are anchored directly on or in the mass which adheres to the inside (5a) of the spacer, without they penetrate to the inside (5a) of the profile bar (1).

4. Insulating glass pane according to claim 2 or 3, characterized in that the rungs (36) or their foot parts (37) are positively anchored in the on the inside (5a) adhering mass.

5. Insulating glass pane according to claim 4, characterized in that of the foot parts (37) protrudes a connecting device (40), which serves the connection of the foot part (37) with the rung (36).

6. insulating glass pane according to claim 3, 4 or 5, characterized in that the foot parts (37) have a plate (38), with which they are anchored on or in the on the inside (5a) of the spacer adhering mass (18), and that the plate (38) has a connecting device (40) protruding therefrom.

7. Insulating glass pane according to claim 6, characterized in that the plate (38) has recesses and / or openings (39) which receive on the inside (5a) of the spacer adhering mass.

8. Insulating glass pane according to claim 7, characterized in that the outlets and / or openings (39) on the inside (5a) of

Distance holder absorb adhesive mass, which was displaced by pressing the foot part (37) in the mass.

9. Insulating glass pane according to one of the preceding claims in conjunction with claim 3, characterized in that the rungs (36) by means of a

Adapters (42) are connected to their foot part (37).

10. Insulating glass pane according to claim 9, characterized in that the adapter (42) in the end of the rung (36) is provided.

11. Insulating glass pane according to claim 10, characterized in that the adapter (42) in the hollow end of the rung (36) is fixed.

12. Insulating glass pane according to one of claims 9 to 11, characterized in that on rungs (36) with different cross-sections adapted adapter (42) for connection with mutually identical foot parts (37) are formed with mating connecting means.

13. Insulating glass pane according to one of claims 5 to 8, characterized in that the connecting means (40) of the foot part is an extension which engages in an adapter (42) according to one of claims 9 to 12.

14. insulating glass pane according to claim 13, characterized in that the foot part (37) and the adapter (42) are connected to each other by plugging and / or Klippsen.

15. Insulating glass pane according to one of the preceding claims, characterized in that adhering to the inside (5a) of the spacer

Mass the entire inner side (5a) of the spacer covered, as far as this is not already covered by other sealant, which is applied to the flanks (3,4) and can extend to the inside (5a) of the spacer holder.

16. Insulating glass pane according to one of the preceding claims, characterized in that the adhesive on the inside (5a) of the spacer mass connects tightly to the other sealing compound and adheres to it.

17. Insulating glass pane according to one of the preceding claims, characterized in that the on the inside (5a) of the spacer adhering mass is positively interlocked with the spacer.

18. Insulating glass pane according to one of the preceding claims, characterized in that the profiled bar (1) consists of a plastic.

19. Insulating glass pane according to one of the preceding claims, characterized in that the profiled bar (1) is a rectangle in cross section.

20. Insulating glass pane according to claim 17 or 18, characterized in that the profiled bar (1) has a hollow box profile.

21. insulating glass pane according to claim 18 of 19, characterized in that the profile bar has a solid profile.

22. Insulating glass pane according to claim 21, characterized in that the profiled bar consists of a foam.

23. Insulating glass pane according to one of the preceding claims, characterized in that the spacer has corners, which are formed by bending the profile bar (1).

24. A method for producing an insulating glass pane with the features according to one of the preceding claims

(a) providing a profile bar (1),

(B) applying a mass, which preferably contains a desiccant, on the profile bar (1), on the later inner side (5a) of the spacer, and applying a sealing compound on the flanks (3,4) of the profile bar

(1).

(C) anchoring of foot parts (37) for one or more rungs (36) on or in the on the inside (5a) of the profile bar (1) applied mass, without penetrating to the inside (5a) of the profile bar (1) , (d) forming the coated profiled bar (1) into a frame-shaped structure. Attaching one or more rungs (36) to the foot parts (37) and closing the frame-shaped structure to a spacer by connecting the ends of the profile bar (1) together,

(e) attaching the spacer to a first glass sheet (45) so as to adhere thereto in the vicinity of the edge of the first glass sheet (45),

(f) attaching a second glass pane (46) parallel to the first glass pane (45) to the spacer so that it also adheres to the second glass pane (46),

(g) compressing the two glass sheets (45, 46) to the thickness prescribed for the insulating glass pane, (h) optionally connecting the spacer to the two glass sheets (45, 46) by applying a secondary sealing compound (28), the order of application the mass (18) to be applied to the inside (5a) and the other sealing compound are exchanged can be applied or the application can be done simultaneously or overlapping each other in time.

25. A method for producing an insulating glass pane having the features according to one of claims 1 to 23 by

(a) providing a profile bar (1),

(b1) applying a mass which preferably contains a desiccant to the profiled bar (1), on the later inner side (5a) of the spacer, and applying a primary sealing compound to the flanks (3, 4) of the spacer

Profiled bar (1),

(b2) applying a secondary sealing compound (28) to the flanks (3, 4) of the profile bar (1),

(c) anchoring foot parts (37) for one or more rungs (36) on or in the mass adhering to the inside (5a) of the profile bar (1), without the latter up to

Inside (5a) of the profile bar (1) to penetrate,

(d) forming the coated profile bar (1) into a frame-shaped structure and attaching one or more rungs (36) to the foot portions (37) and closing the frame-shaped structure to a spacer by connecting the ends of the profile bar (1) together;

(f) attaching a second glass sheet (46) parallel to the first glass sheet (45) to the spacer so that it also adheres to the second glass sheet (46), (g) compressing the two glass sheets (45, 46) onto the one for the Insulating glass predetermined thickness, wherein the order of application of the primary and secondary sealing compound and preferably containing the desiccant mass are reversed or the application can be carried out simultaneously or overlapping in time.

26. The method according to claim 24 or 25, characterized in that for the desiccant-containing composition preferably a sealant is used, which is the penetration of water vapor into the interior of the Insulated glass pane effectively counteracted, in particular on the basis of polyisobutylene or other common for insulating glass primary sealing compounds.

27. The method according to any one of claims 24 to 26, characterized in that also on the flanks (45,46) applied primary sealing compound contains a desiccant.

28. The method according to any one of claims 24 to 27, characterized in that on the inside (5a) of the profile bar (1) to be applied, the desiccant-containing mass and the other sealing compound are applied so that they connect to each other and that preferably the Desiccant-containing mass covers the inside (5a) of the spacer, as far as the other sealing compound does not cover it,

29. The method according to any one of claims 24 to 27, characterized in that the composition preferably containing the desiccant is applied so that it covers the entire inner side (5a) of the spacer and also extends beyond the flanks (3,4) ,

30. The method according to claim 29, characterized in that the mass preferably containing the desiccant serves at the same time as the primary sealing compound.