WO2005075783A1 - Vitre isolante et son procede de production - Google Patents

Vitre isolante et son procede de production Download PDF

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Publication number
WO2005075783A1
WO2005075783A1 PCT/EP2005/001080 EP2005001080W WO2005075783A1 WO 2005075783 A1 WO2005075783 A1 WO 2005075783A1 EP 2005001080 W EP2005001080 W EP 2005001080W WO 2005075783 A1 WO2005075783 A1 WO 2005075783A1
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WO
WIPO (PCT)
Prior art keywords
glass pane
spacer
insulating glass
base
legs
Prior art date
Application number
PCT/EP2005/001080
Other languages
German (de)
English (en)
Inventor
Karl Lenhardt
Original Assignee
Karl Lenhardt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE200410020884 external-priority patent/DE102004020884A1/de
Priority claimed from DE102004027527A external-priority patent/DE102004027527A1/de
Application filed by Karl Lenhardt filed Critical Karl Lenhardt
Publication of WO2005075783A1 publication Critical patent/WO2005075783A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66361—Section members positioned at the edges of the glazing unit with special structural provisions for holding drying agents, e.g. packed in special containers
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B2003/66395—U-shape

Definitions

  • the invention relates to an insulating glass pane with the features specified in the preamble of claim 1.
  • Such an insulating glass pane is known for example from DE 28 16437 C2.
  • insulating glass panes two individual glass panes are glued together by a frame-shaped spacer.
  • the spacers mostly consist of metallic hollow profiles, in particular of aluminum or steel, which have legs facing the individual glass panes.
  • a primary, non-setting sealant to the legs of the frame-shaped spacer, which is usually a polyisobutylene, which is a thermoplastic butyl rubber.
  • From DE 28 03 132 C2 it is known to place the spacer for coating with the primary sealant on a horizontal conveyor, to lean against a supporting wall and to pass it with its leg lying on the horizontal conveyor between two mutually facing nozzles, with which on both legs a strand of the primary sealant is applied to the spacer. Get one.
  • the feed is interrupted and the spacer is pivoted through 90 ° against its normal direction, whereby the next leg of the frame-shaped spacer comes to rest on the horizontal conveyor, which is then coated next. This is how you proceed until the entire spacer is coated on its legs.
  • a spacer prepared in this way is then glued to a first glass pane in a first assembly station and a second glass pane is glued to the free leg of the spacer in another assembly station and the assembly thus formed is pressed to a thickness specified for the insulating glass pane in a surface press.
  • the primary sealing compound not only serves to seal the insulating glass pane against the ingress of moisture or - if the insulating glass pane is covered with air
  • the primary sealing compound also brings about a provisional cohesion of the insulating glass pane, which is subsequently permanently secured in the prior art by a secondary sealing compound.
  • the secondary sealing compound is filled into an edge joint which is delimited by the outside of the spacer and the two adjacent glass panes.
  • the vast majority of the secondary sealant is accordingly on the outside of the spacer between the two individual glass panes and at most a smaller part of it penetrates into the two gaps between the two legs of the spacer and the glass panes, where it meets the primary sealant and connects to it.
  • US 5,439,716 A it is known to provide both the primary and the secondary sealing compound only between the legs of a spacer, which is formed from a hollow profile made of steel, and the adjacent glass panes.
  • thermoplastic spacer instead of spacers which are formed from hollow profile bars, which is in situ by means of a nozzle which is moved along the edge of a single glass pane the glass sheet is extruded and then glued to it by attaching a second glass sheet.
  • the spacer extruded in situ acts as a primary sealant.
  • a secondary sealing compound is also required in this case, which is filled into the edge joint, which is on the outside of the thermoplastic spacer and extends from one to the other glass pane.
  • An insulating glass pane which is formed by the fact that glass panes are glued together at the edge with the interposition of a spacer, require a desiccant which binds moisture present in the interior of the insulating glass pane so that the inside of the glass panes does not fall below the dew point when cooling. It is known to provide the desiccant in the spacer. If, as in the prior art, the spacer is formed from one or more hollow profile bars, these usually contain the desiccant in the form of a loosely filled granulate (US Pat. No. 5,439,716 A), which is connected to the interior space of the insulating glass pane via a perforation on the inside of the spacer stands.
  • an insulating glass pane with a spacer which is formed from a U-profile made of steel, the base of which is directed outwards and the legs of which are directed into the interior of the insulating glass pane.
  • a spacer has no cavity for receiving a desiccant; instead, this is embedded in a gas-permeable strand, for example made of polyurethane, which adheres to the inside of the base of the U-profile in a self-adhesive manner.
  • a spacer can be made cheaper with curved corners than a spacer from hollow metal profiles which are filled with loose desiccant.
  • Insulating glass panes manufactured with it are known under the trade name Intercept. They also look less appealing than conventional insulating glass panes.
  • the present invention is based on the object of showing a further possibility of obtaining inexpensive insulating glass panes which are suitable, in particular for mass production, without restrictions in terms of quality and dimensions.
  • an insulating glass pane with the features specified in claims 1 and 2.
  • Claims 42 and 44 specify methods for producing such an insulating glass pane.
  • Advantageous developments of the invention are the subject of the dependent claims.
  • two individual glass panes are glued together by a frame-shaped spacer.
  • the spacer has a base and two legs extending from the base, which are integrally connected to one another via the base, but not at their ends remote from the base.
  • the legs are preferably connected to one another in one piece only via the base.
  • Above the base there is a space between the legs, which is bridged by a strand containing a desiccant, which extends best from the base over the full length of the legs and is glued to them.
  • This has important advantages, which work together in a sensible way: ⁇ If the legs of the spacer are only integrally connected to each other at the base of the spacer, this is favorable for a low heat transfer between the individual glass panes.
  • the strand containing a desiccant is not applied to the base, but as a bridge between the legs at a distance from the base. This means that a space remains between the base and the strand, which is favorable for a low heat transfer between the individual glass panes.
  • a free space closed off by the strand with the desiccant can contribute to the sealing of the insulating glass pane.
  • Water vapor which for some reason, for example as a result of porosity, a crack or as a result of corrosion of the spacer, passes into the space closed off by the strand, is retained there and finally absorbed by the desiccant, so that it does not reach the interior of the insulating glass pane ,
  • An additional barrier can be formed by an intermediate wall connecting the legs of the spacer profile, which partition lies between the strand containing a desiccant and the base of the spacer profile, specifically at a distance from the base and preferably also with Distance from the strand.
  • the intermediate wall can be thin and it can increase the mechanical stability of the spacer profile.
  • the above-mentioned advantage of an improved water vapor barrier is significantly increased if the strand is formed not from a porous material but from a dense material, for example from a material based on polyisobutylene.
  • the strand acts not only as an absorber, but also as a seal. Nevertheless, it can fulfill its task of binding moisture out of the interior of the insulating glass pane because long diffusion times can be accepted without disadvantage.
  • the space formed in the spacer has the further advantage that the spacer appears well filled with the material containing the desiccant, even though the space available in the spacer is only partially filled.
  • the strand can be extruded onto the legs in situ.
  • the invention is suitable for different spacers, in particular for those made of extruded plastic profiles.
  • the bridging of the legs of the spacer by the strand is made easier if at least one has the legs at a distance from the base a projection which extends into the space between the legs, narrows the gap between them and at the same time provides a surface which fu r applying the strand is particularly suitable.
  • Such an extension stabilizes the position of the strand.
  • the strand with the Desiccant can penetrate into the gap between the legs, which is narrowed by the at least one extension, and lead to mechanical interlocking between the at least one extension and the strand, which secures the position of the strand even if the adhesive adhesion of the strand is inadequate should be or would be inadequate. If such an extension is present on at least one of the legs of the spacer profile, it suffices if the strand bridges the gap between the extension and the opposite leg or - if two mutually opposite extensions are present - bridges the gap between the two extensions.
  • Spacers are preferably used, which have an extension extending along their length on both legs and the two extensions are directed towards one another. This is the cheapest for the manufacture and coating of the spacer.
  • the projections extending from the legs preferably taper in the direction of the opposite leg. It is particularly preferred that the extensions taper to a point. In this way, the material expenditure for the spacer, which is preferably a plastic profile, can be minimized, the free space remaining under the extensions is maximized and the heat transfer between the individual glass panes is minimized.
  • tapered extensions are particularly suitable for interlocking the extensions with the strand in which a desiccant is stored.
  • the strand in which a desiccant is stored preferably has a convex upper side. It could protrude beyond the ends of the legs of the spacer that are remote from the base. However, the strand with the desiccant should preferably not protrude beyond the ends of the legs of the spacer into the space between the individual glass panes. Rather, it is preferred that the free end of the respective extension removed from the respective leg lies below a plane which delimits the two ends of the two legs of the spacer which are remote from the base. Preferably, the extensions are overall below the level mentioned. This can be achieved, for example, by having the extensions of one in the middle area of the legs point and approach the shortest way to the opposite leg, or by starting from the ends of the legs which are distant from the base, but approaching the opposite leg and at the same time the base.
  • the extensions preferably lie opposite one another at a distance. This helps to save material and reduce the thermal bridge between the individual glass panes. However, it is also possible, in particular in the case of tapered extensions, for the extensions to touch without integrally merging.
  • the extensions are preferably mirror-symmetrical with respect to a longitudinal symmetry plane that intersects the base of the spacer. This is the cheapest for manufacturing.
  • the spacer itself is preferably made from an extruded plastic profile; In this way, the spacer profile with its two legs and the projections extending therefrom, which carry the strand with the desiccant, can be produced particularly cheaply,
  • the strand can be colored as desired by the customer. It preferably consists of a plastic which is only so slightly permeable to water vapor that the moisture present in the interior of the insulating glass pane can actually still be absorbed by the desiccant.
  • the strand of pasty plastic in which a desiccant is dispersed is preferably extruded directly onto the extension (s), where it cools, glued to the spacer and bridging the gap between the legs or their extensions.
  • Such a strand can be extruded simultaneously or overlapping in time in the same station in which a primary and optionally a secondary sealing compound is applied to the legs of the spacer profile.
  • a particularly suitable material for the strand is a thermoplastic adhesive, in particular based on polyisobutylene, for example a material which is also used for thermoplastic spacers in insulating glass panes and under the TPS® brand is processed on machines from Lenhardt Maschinenbau GmbH (WO96 / 06456 A2).
  • materials which can otherwise be used as primary or secondary sealing compounds in insulating glass panes for example a hot-melt, polyurethane, thiokol or a silicone.
  • a profile bar from which a frame-shaped spacer is formed.
  • the mass is applied, for example, to the side of the legs of the profile bar facing away from the base of the profile bar, in particular to the at least one extension, the one
  • Leg of the profile rod preferably has in order to obtain a surface which is particularly suitable for the application of the pasty mass.
  • a primary sealing compound in particular a polyisobutylene, is applied to the outer sides of the two legs.
  • the profile bar is formed into a frame-like structure and closed. This can be done by joining four straight profile bars with corner connectors to form the frame-like structure.
  • the frame is preferably formed from a single profile bar, which is provided with curved corners for this purpose. Any necessary machining operations at the locations provided for the corners and at the ends of the profile bars are carried out before the desiccant-containing composition and the primary sealing composition are applied.
  • the coated spacer is attached to a first glass pane and glued to it.
  • a second glass pane is placed parallel to the first glass pane on the spacer and glued to it.
  • the semi-finished insulating glass pane formed in this way is pressed to its predetermined thickness.
  • the spacer is connected to the two glass panes by applying a secondary, hardening sealing compound in order to obtain a mechanically firm bond between the insulating glass panes.
  • the secondary sealing compound can extend over the entire base of the spacer from one glass pane to the other glass pane, but it can also be limited to a gap between the outside of the two legs of the spacer and the adjacent glass panes. In the latter case, the secondary Sealant can also be applied at the same time or overlapping with the primary sealant on the still straight profile bar, which has not yet been closed to the frame.
  • a separate secondary sealing compound can be dispensed with; such a primary sealant may, for example, be a reactive hot melt, a hot melt adhesive with e.g. thermosetting (crosslinking) component.
  • a single sealing compound can be used if its properties combine sufficient sealing capacity with sufficient strength. It should set and harden to achieve strength and at the same time retain a certain permanent elasticity in order to achieve the required seal.
  • the invention is not dependent on working with only one type of sealing compound.
  • a primary sealing compound which like polyisobutylene, is particularly suitable for sealing
  • a secondary sealing compound which is particularly suitable for permanent, permanent connection
  • the glass panes have, in particular, a hardening plastic mass, such as for example a polyurethane or a thiokol (polysulfide), a reactive polyisobutylene, a silicone or also a reactive hot-melt.
  • Both the primary sealing compound and the secondary sealing compound can be applied to the outside leg of the spacer before the insulating glass pane is assembled. This can be done at the same time, for example by coextrusion, or one after the other or overlapping in time, preferably first the primary sealing compound and then the secondary sealing compound.
  • the primary sealing compound expediently adjoins the interior of the insulating glass pane and the secondary sealing compound directly adjoins the side of the primary sealing compound facing away from the interior of the insulating glass pane and extends to the edge of the Insulating glass pane.
  • the primary sealing compound which is preferably applied in front of the secondary sealing compound, already represents an effective barrier for the secondary sealing compound when the secondary sealing compound is being applied. This barrier cannot be overcome by the secondary sealing compound when pressing the insulating glass pane.
  • Both sealing compounds are preferably applied in one and the same station, so that a separate sealing station, in which, in the prior art, the secondary sealing compound is applied only after the glass panes have been joined to form an insulating glass pane (DE 28 16 437 C2) can be dispensed with. Since the sealing stations are generally the most expensive stations in an insulating glass production line, this means enormous cost savings with considerably less space.
  • the primary sealing compound and the secondary sealing compound can already be applied to the legs of the profile bars before these are formed into a spacer frame.
  • a device such as that described in DE 28 03 132 C2 for moving and pivoting spacer frames when coating their legs with a primary sealing compound is not required in such a way of producing an insulating glass pane.
  • the invention is suitable not only for insulating glass panes in which two individual glass panes are glued to one another by a frame-shaped spacer, but also for insulating glass panes in which more than two glass panes are bonded to one another in pairs by a frame-shaped spacer, in particular for insulating glass panes which three individual glass panes are glued together by two frame-shaped spacers.
  • the spacer is preferably arranged such that it is flush with the edges of the individual glass panes.
  • the spacer is accordingly preferably flush with the edge of the smaller glass pane.
  • On flush closure enables the greatest sealing depth and reduces both the risk of chipping from the edge of the insulating glass pane and its contamination by any overflowing sealing compound.
  • the spacer can even be arranged in such a way that it protrudes beyond the edge of the individual glass panes and thus itself forms the edge of the insulating glass pane. This also reduces the risk of chipping from the edge of the insulating glass pane, in particular when transporting and installing the insulating glass pane in a window frame or in a facade.
  • Optimal protection of the edges of the glass panes is achieved with an embodiment in which the spacer has a base with two extensions which extend beyond the legs of the spacer in opposite directions and which cover the edges of the individual glass panes and preferably lie against them. The edges of the glass panes are then completely protected and whenever the insulating glass pane is set up, it stands on the base of the spacer and its extensions. These extensions preferably extend continuously in the longitudinal direction of the spacer profile, but could also be interrupted without a major loss of protection. This embodiment considerably simplifies the handling of freshly produced insulating glass panes:
  • the insulating glass pane can be stacked ready for dispatch or inserted directly into window frames without having to wait for the sealing compound to harden.
  • Suitable spacers are those which are formed from metal or plastic profile bars.
  • spacers made of plastic in particular, it is advantageous if they have a base which is 2 mm to 5 mm thick, in particular 2.5 mm to 4 mm.
  • Such a base which is significantly thicker than in the case of spacers in the prior art, is advantageous not only because it improves the gas tightness and water vapor tightness of the insulating glass pane, but also because it increases the mechanical stability of the spacer, the formation of corners in the spacer without the use favors separate corner connectors, as disclosed in German patent application 102004005 354.5, filed by the same applicant, and connecting profiled bars for spacers without using separate straight connectors, as disclosed in German patent application 102004005 471.1, filed by the same applicant.
  • the spacer preferably consists at least partially of a plastic.
  • Plastic profiles suitable for the invention can be inexpensively formed in long lengths by extrusion. Plastic spacers enable less heat transfer from one glass pane to the other glass pane than metallic spacers.
  • the outside of the base of the spacer is metallic. For example, it can be thinly metallized, which does not significantly increase the heat transfer through the spacer. It is also possible to use a coextrusion process to produce a plastic spacer profile which is provided on the outside of its base with a metal foil.
  • Another advantageous possibility of improving the gas-tightness and vapor-tightness of a plastic spacer consists in embedding a diffusion barrier, in particular a metal foil, in the base of the spacer.
  • a diffusion barrier in particular a metal foil
  • Such an internal diffusion barrier can be embedded in the spacer profile using a coextrusion process.
  • a concave surface area running in the longitudinal direction thereof is preferably provided, on which the secondary sealing compound is preferably applied.
  • This flat surface area results in a defined sealing gap of a predetermined width and depth for the primary sealing compound, which is of particular importance for the gas tightness and vapor tightness.
  • the two flat surface areas are preferably coplanar. This facilitates the correct alignment of the spacer when pressing the insulating glass pane.
  • the secondary sealing compound is also applied to this further flat surface area or it is displaced there from the concave surface area of the spacer when the insulating glass pane is pressed.
  • the secondary sealing compound should extend in the gap between the legs of the spacer and the glass panes over a depth of at least 5 mm, more preferably over a depth of 6 mm to 8 mm.
  • the secondary sealing compound preferably extends over the entire height of the legs of the spacer insofar as these are not covered by the primary sealing compound. If a primary sealant has been applied to the thighs, the secondary sealant immediately adjoins them, with gaps to be avoided as far as possible. If only one sealing compound is used, which effects both the required sealing and the permanent mechanical bond, then this should also extend over the entire height of the legs of the spacer.
  • a large sealing depth which is made possible without reducing the clear internal dimension of the frame-shaped spacer, if any sealing compound is only provided between the spacer and the two individual glass panes, because the spacer can then be arranged flush with the edge of the glass panes, only favors working with a single sealing compound, which can be, for example, a reactive, one-component sealant and adhesive based on a polyisobutylene (butyl) or a reactive hot-melt adhesive (hot-melt).
  • a single sealing compound which can be, for example, a reactive, one-component sealant and adhesive based on a polyisobutylene (butyl) or a reactive hot-melt adhesive (hot-melt).
  • FIG. 1 shows a cross section through part of an insulating glass pane according to the invention
  • FIG. 2 shows in detail a cross section through the spacer used in FIG. 1,
  • FIG. 3 shows the spacer from FIG. 2 coated with a primary sealing compound and with a strand of desiccant applied
  • FIG. 4 shows the spacer from FIG. 3 additionally coated with a secondary sealing compound
  • FIG. 5 shows the spacer from FIG. 4 between two glass panes in the phase of assembling the insulating glass pane
  • FIG. 6 shows a section of the insulating glass pane in FIG. 1 in an oblique view
  • FIG. 7 shows, in a representation as in FIG. 4, a spacer with a modified cross-sectional shape, which is coated with only a single sealing compound, without a strand containing desiccant,
  • FIG. 8 shows, in a representation corresponding to FIG. 1, an insulating glass pane in which the spacer from FIG. 7 is inserted after application of a strand containing desiccant,
  • FIG. 9 shows the insulating glass pane from FIG. 8 in an oblique view
  • FIG. 10 shows, as in FIG. 7, a third example of a spacer with a modified cross-sectional shape
  • FIG. 11 shows, in a representation corresponding to FIG. 8, an insulating glass pane in which the spacer from FIG. 10 is inserted,
  • FIG. 12 shows the insulating glass pane from FIG. 11 in an oblique view
  • FIG. 13 shows a cross section through a third exemplary embodiment of a spacer
  • FIG. 14 shows, in a representation as in FIG. 3, the spacer after the application of a strand with desiccant and a primary sealing compound
  • FIG. 15 shows, in a representation corresponding to FIG. 1, an insulating glass pane with the spacer from FIG. 14 in cross section,
  • FIG. 16 shows the insulating glass pane from FIG. 15 in an oblique view
  • FIG. 17 shows the insulating glass pane from FIG. 15 with a rung inserted
  • FIGS. 18 to 22 show, in representations corresponding to FIGS. 13 to 16, an exemplary embodiment with a fourth embodiment of a spacer and the
  • FIGS. 23 to 27 show, in representations corresponding to FIGS. 13 to 16, an example with a fifth embodiment of a spacer
  • FIG. 28 shows an oblique view of the area of a connection point in a spacer
  • FIG. 29 shows the connection of two profile rod ends by means of a wedge
  • FIG. 30 shows, in a sectional representation corresponding to FIG. 8, a further exemplary embodiment of an insulating glass pane
  • FIG. 31 shows, in a sectional representation as in FIG. 30, a last exemplary embodiment of an insulating glass pane.
  • Figure 1 shows a section of an insulating glass pane 1, consisting of two individual glass panes 2 and 3, between which there is a frame-shaped spacer 4, which is shown as an individual part in Figure 2.
  • the spacer 4 has a profile derived from a C profile with a base 5 which has a flat outer side 6. From the opposite inner side 7 of the base 5, two mirror-like legs 11 extend, which have short projections 8 directed towards one another at their ends remote from the base 5.
  • the legs 11 of the spacer 4 facing the glass panes 2 and 3 have a first flat surface area 13 adjacent to the inside 12 of the spacer 4, a second flat surface area 14 adjacent to the outside 6 of the base 5 and a concave surface area 15 between them, the lowest point of which at the level of the inside 7 of the base 5.
  • the spacer 4 is formed from a plastic profile rod, which can be produced by extrusion.
  • the base 5 of the spacer 4 is preferably thicker than its legs 11.
  • the base 5 is preferably 2.5 mm to 4 mm thick at the thinnest point.
  • the height of the spacer profile, measured from the outside 6 of the base 5 to the opposite inside 12 of the spacer 4, is preferably 10 mm to 12 mm.
  • the inner side 12 of the spacer 4 is understood here to mean the end surface of the legs 11 or legs facing away from the base 5, which faces the interior 17 of the insulating glass pane.
  • the strand 18 which contains a desiccant.
  • the strand 18 can be formed, for example, from a plastic as a matrix material, in which a granular or powdery drying agent is incorporated.
  • the strand 18 is preferably made of a thermoplastic material and is best extruded directly hot onto the extensions 36, on which it adheres firmly after cooling. Part of the material penetrates into the gap 37 and interlocks there with the edges of the extensions 36. A space 39 remains in the spacer 4 under the strand 18.
  • a strand of a primary sealing compound 19 is applied to the flat surface region 13 of the two legs 11 of the spacer 4 (FIG. 3), whereas the concave surface region 15 a strand of a secondary sealing compound 20 is applied to each of the two legs 11 (FIG. 4).
  • the primary sealant 19 is preferably a non-setting polyisobutylene.
  • the secondary sealant 20 is preferably a setting polyurethane or thiokol.
  • the secondary sealing compound 20 is preferably applied slightly offset after the primary sealing compound 19 because the strand of the primary sealing compound 19 then forms a barrier for the secondary sealing compound 20.
  • the nozzles for the two sealing compounds can be arranged one behind the other in the longitudinal direction of the profile rod forming the spacer, so that a profile rod moved past the nozzles first passes through the nozzle for the primary sealing compound and then through the nozzle for the secondary sealing compound.
  • the nozzle for the primary sealant should run in front of the nozzle for the secondary sealant.
  • the secondary sealing compound 20 is preferably applied somewhat flatter than the primary sealing compound 19, as shown in FIG. 4, so that a step-shaped shoulder 21 is formed between the primary sealing compound 19 and the secondary sealing compound 20.
  • both can be applied in one and the same device in the manner described above.
  • the strand 18, which contains a desiccant can be extruded onto the extensions 36 in the same device.
  • the spacer 4 If the spacer 4 is coated and the strand 18 is applied to the extensions 36, as shown in FIG. 4, it can be attached to one of the two glass panes 2, 3 and then the other glass pane 3, 2 attached to the opposite side of the spacer 4 and the The distance between the glass panes 2, 3 can be reduced by pressing to a predetermined thickness for the insulating glass pane (FIG. 5). However, it is also possible to insert the spacer 4 coated as in FIG. 4 between two glass panes 2, 3 arranged parallel to one another and then to move them against the spacer 4 and to compress them to the predetermined thickness (FIG. 5).
  • the spacer 4 is preferably matched to the size of the glass panes 2 and 3 in such a way that they have the same circumference. Then, as shown in FIG. 1, the outside 6 of the base 5 of the spacer 4 is flush with the edge of the two glass panes 2 and 3. From the edge of the insulating glass pane 1 to the inside 12 of the spacer 4 there is a large sealing depth with a moderate gap width, which is advantageous both for sealing the insulating glass pane 1 and for its firm bond.
  • the thickness of the base 5 is chosen so that it is sufficiently gas-tight and water-vapor-tight.
  • additional measures can be taken: for example, a metal foil can be integrated into the base 5 or the outside of the base 5 can be covered with a thin metal foil which extends into the concave surface area 15 on both sides.
  • the exemplary embodiment shown in FIGS. 7 to 9 differs from the exemplary embodiment shown in FIGS. 1 to 6 in that the extensions 36 of the spacer 4 are not made blunt, but tapering, whereby they approach each other more closely than in the first exemplary embodiment, but without touching each other.
  • the exemplary embodiment shown in FIGS. 10 to 12 differs from the exemplary embodiment shown in FIGS. 7 to 9 in that the tapering extensions 36 do not start from the central region of the legs 11, but from the ends of the legs which are remote from the base 5 11, the extensions 36 taking the place of the short projections 8 provided in the previous exemplary embodiments. While in the exemplary embodiment in FIGS. 7 to 9, the extensions 36 approach the opposite leg 11 by the shortest route, they do not in the exemplary embodiment in accordance with FIGS. 10 to 12, but instead extend there approximately at an angle of 45 ° to the base 5 and the respective opposite leg 11. In the exemplary embodiment according to FIGS. 10 to 12, particularly little material is needed for the spacer profile and the lowest heat transfer between the individual glass panes 2 and 3 is achieved.
  • the exemplary embodiments shown in FIGS. 7 to 12 also differ from the exemplary embodiment shown in FIGS. 1 to 6 in that not two different sealing compounds but only a single sealing compound 25 is applied to the outside of the legs 11.
  • it can be applied with a lenticular cross-section to the concave surface area 15 of the legs 11 and, when the insulating glass pane is pressed, is displaced into the gaps delimited by the two flat surface areas 13 and 14, so that it extends practically over the entire height of the legs 11.
  • the strand 18 is arranged such that it does not protrude beyond the plane 16 which delimits the ends of the legs 11.
  • the exemplary embodiment shown in FIGS. 13 to 16 differs from the exemplary embodiment shown in FIGS. 1 to 6 in that the legs 11 have a concave surface area 15 which is designed such that the width of the spacer 4 starts from the flat surface area 13 to the outside 6 of the base 5 and that the legs 11 on the base 5 no longer merge into a second flat surface area.
  • the secondary sealing compound 20 is only applied retrospectively in the production of the insulating glass pane after the two glass panes 2 and 3 have been glued to the spacer 4 via the primary sealing compound 19.
  • the outline of the spacer 4 is chosen to be somewhat smaller than the outline of the glass panes 2 and 3, so that the secondary sealing compound 20 also extends in a thin layer over the outside 6 of the base 5 from one glass pane 2 to the other glass pane 3 can.
  • the strand 18 extends close to the two glass panes 2 and 3 and essentially determines that with its appearance, which is preferably matt black Appearance of the spacer of the insulating glass pane.
  • a matt black appearance is particularly favorable because it harmonizes with colored window frames and door frames and reflects their color without being intrusive.
  • FIG. 17 shows how a rung 22 can be arranged in such an insulating glass pane 1.
  • the rung 22 is designed as a hollow profile rod and is connected to an end piece 23, which has a plate 24, from which a first extension 26 extends into the rung 22. From the other side of the plate 24, a second extension 27 extends through the strand 18 into the free space 9 under the strand 18, it being possible for a barb-shaped contour of the second extension 27 to engage behind the extensions 36 and reliably on Spacer 4 is anchored.
  • a barbed contour of the first extension 26 can make it difficult to displace it in the rung 22.
  • An unwanted movement of the rung 22 in the longitudinal direction of the spacer 4 is prevented by the strand 18 on which the plate 24 lies and which surrounds the second extension 27.
  • the exemplary embodiment shown in FIGS. 18 to 22 differs from the exemplary embodiment shown in FIGS. 13 to 17 in that the extensions 36 of the legs 11 are designed to taper in a manner similar to that in the example in FIGS. 10 to 12 and that the size of the The spacer is the same in outline as the size of the glass panes 2 and 3, the secondary sealing compound 20 being arranged only between the legs 11 and the glass panes 2 and 3, but not covering the outside 6 of the base 5. Otherwise, the contour of the outside of the legs 11 is very similar to that in the example in FIGS. 13 to 17.
  • the exemplary embodiment shown in FIGS. 23 to 26 differs from the exemplary embodiment shown in FIGS. 1 to 6 in that only one of the two legs 11 has an extension 36 which extends into the vicinity of the opposite leg 11.
  • the strand 18, which adheres to the extension 36 extends from the inside of one leg 11 to the opposite inside of the opposite leg 11.
  • the convex contour of the strand 18 rises slightly above the inside 12 of the spacer 4, formed by the end faces of the legs 11 remote from the base 5.
  • the extension 27 of the rung end piece 23 cannot extend into the space 39 under the strand 18 extend, but abuts the extension 36.
  • the extension 27 can be anchored at the upper ends of the legs 11 formed with undercuts, and for this purpose is, for example, as shown in FIG.
  • the spacer frame 4 In order not to make the connection point of the spacer frame 4 visible in the insulating glass pane, it is preferably covered with a badge 29, as is shown by way of example in FIG. 28.
  • the badge 29 has two projections 30 on its back, which can be inserted through the desiccant-containing mass 18 into the space 39 underneath and thereby anchored.
  • the extensions 30 prevent the two plugged-together ends of the profile bar from shifting laterally against one another when further manipulation with the frame-shaped spacer 4. If such a badge 29 is undesirable, a lateral offset between the two profile rod ends can also be prevented by inserting a wedge 31 into the free space 39, as shown in FIG. This wedge 31 is then covered by the desiccant mass 18.
  • the wedge 31 and the extensions 30 of the badge 29 can also have barbs that resist pulling apart the profile rod ends.
  • the profile rod ends do not have to engage with one another in a complementary manner, as is shown, for example, in FIG. 8a; This is suitable to simplify the connection of the profile rod ends.
  • the exemplary embodiment shown in FIGS. 28 and 29 also differs from the previous exemplary embodiments in that the legs 11 of the spacer profile are still connected at a distance from the base 5 by an intermediate wall 40.
  • Such an intermediate wall 40 can increase its mechanical stability, in particular in the case of thin-walled spacer profiles. It can also be an abutment for form the insertion of rung end pieces. Finally, it forms an additional barrier against the diffusion of water vapor.
  • a uniform sealing compound 25 is applied to the outside of the legs 11, e.g. a reactive hot-melt, which brings about both the necessary sealing between the spacer 4 and the glass panes of the insulating glass pane as well as the permanent and firm connection with them.
  • FIG. 30 shows a section through an insulating glass pane corresponding to FIG. 11.
  • the spacer 4 is formed from a thin-walled profile bar, the flanks 11 of which are spaced from the base 5 by a parallel to the base 5 Partition 40 are connected.
  • the upper ends of the legs 11 have mutually directed extensions 36 which protrude at right angles from the legs 11.
  • the extensions 36 carry a strand 18 of a desiccant-containing mass, which extends almost over the entire width of the spacer profile.
  • the strand 18 is preferably applied to the extensions 36 by extrusion in situ. However, it could also be prefabricated and applied to the extensions 36 like an adhesive tape.
  • the spacer profile shown in FIG. 30 can be produced from plastic by extrusion.
  • the intermediate wall 40 can serve as a support or abutment for a rung foot.
  • the exemplary embodiment shown in FIG. 31 differs from the exemplary embodiment shown in FIG. 30 in that the spacer profile is a thin-walled box profile that is open on the inside and is essentially rectangular. It can be formed by extrusion from plastic or, for example, from rolls of sheet metal, in particular sheet steel. Another difference from FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention concerne une vitre isolante comprenant deux vitres individuelles (2, 3) collées ensemble par l'intermédiaire d'un écarteur (4) qui se présente sous la forme d'un cadre et qui comporte une base (5) ainsi que deux branches (11) qui s'étendent à partir de cette base et qui sont reliées de manière à ne faire qu'une pièce, uniquement par l'intermédiaire de la base (5). Selon l'invention, la base (5) est orientée vers l'extérieur, un espace intermédiaire est présent au-dessus de la base (5) entre les branches (11), au moins une sorte de substance d'étanchéité (19, 20 ; 25) est prévue entre les branches (11) de l'écarteur (4) et les deux vitres (2, 3) adjacentes, et un cordon (18) renfermant un agent de dessiccation adhère à l'écarteur (4). Cette invention est caractérisée en ce que le cordon (18) est disposé à une distance de la base (5) et relie les branches (11) qui sont séparées par l'espace intermédiaire.
PCT/EP2005/001080 2004-02-03 2005-02-03 Vitre isolante et son procede de production WO2005075783A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102004005356 2004-02-03
DE102004005356.1 2004-02-03
DE200410020884 DE102004020884A1 (de) 2004-04-26 2004-04-26 Isolierglasscheibe und Verfahren zu ihrer Herstellung
DE102004020884.0 2004-04-26
DE102004027527A DE102004027527A1 (de) 2004-02-03 2004-06-03 Verfahren zum Herstellen einer Isolierglasscheibe
DE102004027527.0 2004-06-03

Publications (1)

Publication Number Publication Date
WO2005075783A1 true WO2005075783A1 (fr) 2005-08-18

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PCT/EP2005/001080 WO2005075783A1 (fr) 2004-02-03 2005-02-03 Vitre isolante et son procede de production

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Country Link
WO (1) WO2005075783A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3184725A1 (fr) * 2015-12-23 2017-06-28 VKR Holding A/S Espaceur destiné à une unité de vitrage multiple et ledit vitrage
US10267083B2 (en) 2016-09-30 2019-04-23 Ged Integrated Solutions, Inc. Tactile spacer frame assembly and locking member
US10316578B2 (en) 2014-06-12 2019-06-11 Ged Integrated Solutions, Inc. Spacer frame and method of making same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2095741A5 (en) * 1970-06-02 1972-02-11 Ppg Industries Inc Sealants for multiple glazing - based on butyl rubber - which are moisture-impermeable, flexible and rt - curing
DE2803132C2 (de) 1978-01-25 1980-01-17 Karl 7531 Neuhausen Lenhardt Weitgehend automatisch arbeitende Vorrichtung zum beidseitigen Beschichten von Abstandhalterrahmen für Mehrscheibenisolierglas mit einer Dichtmasse und Verfahren zur Steuerung der Vorrichtung
DE2816437C2 (fr) 1978-04-15 1980-04-24 Karl 7531 Neuhausen Lenhardt
US5439716A (en) 1992-03-19 1995-08-08 Cardinal Ig Company Multiple pane insulating glass unit with insulative spacer
WO1996006456A1 (fr) 1994-08-24 1996-02-29 David Sarnoff Research Center, Inc. Pixel d'affichage electroluminescent pour matrice active et son procede de fabrication
US5601677A (en) * 1993-08-05 1997-02-11 Ppg Industries, Inc. Method of making a glazing unit having three or more glass sheets and having a low thermal edge
US6470561B1 (en) 1990-09-04 2002-10-29 Ppg Industries Ohio, Inc. Spacer and spacer frame for an insulating glazing unit and method of making same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2095741A5 (en) * 1970-06-02 1972-02-11 Ppg Industries Inc Sealants for multiple glazing - based on butyl rubber - which are moisture-impermeable, flexible and rt - curing
DE2803132C2 (de) 1978-01-25 1980-01-17 Karl 7531 Neuhausen Lenhardt Weitgehend automatisch arbeitende Vorrichtung zum beidseitigen Beschichten von Abstandhalterrahmen für Mehrscheibenisolierglas mit einer Dichtmasse und Verfahren zur Steuerung der Vorrichtung
DE2816437C2 (fr) 1978-04-15 1980-04-24 Karl 7531 Neuhausen Lenhardt
US6470561B1 (en) 1990-09-04 2002-10-29 Ppg Industries Ohio, Inc. Spacer and spacer frame for an insulating glazing unit and method of making same
US5439716A (en) 1992-03-19 1995-08-08 Cardinal Ig Company Multiple pane insulating glass unit with insulative spacer
US5601677A (en) * 1993-08-05 1997-02-11 Ppg Industries, Inc. Method of making a glazing unit having three or more glass sheets and having a low thermal edge
WO1996006456A1 (fr) 1994-08-24 1996-02-29 David Sarnoff Research Center, Inc. Pixel d'affichage electroluminescent pour matrice active et son procede de fabrication

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316578B2 (en) 2014-06-12 2019-06-11 Ged Integrated Solutions, Inc. Spacer frame and method of making same
US10533367B2 (en) 2014-06-12 2020-01-14 Ged Integrated Solutions, Inc. Spacer frame and method of making same
US11028638B2 (en) 2014-06-12 2021-06-08 Ged Integrated Solutions, Inc. Spacer frame and method of making same
EP3184725A1 (fr) * 2015-12-23 2017-06-28 VKR Holding A/S Espaceur destiné à une unité de vitrage multiple et ledit vitrage
US10267083B2 (en) 2016-09-30 2019-04-23 Ged Integrated Solutions, Inc. Tactile spacer frame assembly and locking member
US11008801B2 (en) 2016-09-30 2021-05-18 Ged Integrated Solutions, Inc. Tactile spacer frame assembly and locking member

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