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EP1841940A1 - Element d'ecartement pour vitrages isolants et procede de production dudit element - Google Patents

Element d'ecartement pour vitrages isolants et procede de production dudit element

Info

Publication number
EP1841940A1
EP1841940A1 EP06706283A EP06706283A EP1841940A1 EP 1841940 A1 EP1841940 A1 EP 1841940A1 EP 06706283 A EP06706283 A EP 06706283A EP 06706283 A EP06706283 A EP 06706283A EP 1841940 A1 EP1841940 A1 EP 1841940A1
Authority
EP
European Patent Office
Prior art keywords
hollow profile
wall
adhesive
spacer
profile bar
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP06706283A
Other languages
German (de)
English (en)
Inventor
Karl Lenhardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plus Inventia AG
Original Assignee
Plus Inventia AG
Lenhardt Karl
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 DE102005037303A external-priority patent/DE102005037303A1/de
Priority claimed from DE102005060101A external-priority patent/DE102005060101A1/de
Application filed by Plus Inventia AG, Lenhardt Karl filed Critical Plus Inventia AG
Publication of EP1841940A1 publication Critical patent/EP1841940A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E06B3/667—Connectors therefor

Definitions

  • Spacers for insulating glass panes usually consist of hollow profile bars made of aluminum or stainless steel, which contain a free-flowing desiccant, usually molecular sieves. It is the task of the desiccant to bind existing moisture in the insulating glass, so that the temperatures occurring in the insulating glass does not fall below the dew point.
  • Metallic spacers are today usually bent in one piece from a hollow profile bar. After bending the two opposite ends of the hollow profile bar are joined together by means of a connector, thereby forming a closed frame. The hollow profile bars to be bent are usually connected to one another in succession by connectors. The spacers may therefore also contain multiple connectors.
  • Such frame-shaped metallic spacers are characterized by good mechanical stability. However, they have the disadvantage that they form a thermal bridge between the individual glass panes of the insulating glass pane.
  • spacer frames of metallic U-profiles, thermoplastic full profiles, which are extruded directly onto a glass sheet, and plastic hollow sections are known, which are filled as well as spacers made of metal hollow profile bars with a granular, free-flowing desiccant ,
  • Spacers made of plastic hollow profiles have only a low thermal conductivity, so that they hinder the heat transfer between the individual glass panes of an insulating glass in the desired manner.
  • the disadvantage is that hollow profile bars made of plastic can not bend to square frame, if they have the required for use as spacers in insulating glass hardness and strength. This is especially true for hollow profile bars made of glass fiber reinforced plastic.
  • spacer frame made of plastic hollow profiles in that one straight hollow profile sections, which form the legs of the frame-shaped spacers together, by inserting elbows of metal in the ends of the hollow profile sections, where they cling to barbs.
  • spacers from metallic hollow profile bars by connecting individual hollow profile bars at the corners of the spacer by elbows having two legs connected by a hinge, which in a position in which the legs form a right angle with each other are latched.
  • the individual hollow profile bars are first connected in a straight line, provided on their flanks continuously with an adhesive sealant and then formed by pivoting the hollow profile bars to the joint of each elbow to form a frame and this by a plugged into the ends of the hollow profile rod linear connector closed.
  • Such a design of the corners leads to unstable spacers with the disadvantages mentioned above.
  • EP 0 947 659 A2 and EP 1 030 024 A2 to inject into the corner regions of the spacer frame through an opening in one of its flanks a thermoplastic which bridges the corners and the spacer after cooling and hardening of the plastic gives the necessary stability.
  • the disadvantage is that it takes a comparatively long time until the plastic has cooled and solidified.
  • EP 1 030 024 A2 to transfer the spacer being produced into a special hardening zone after injection of the plastic while maintaining the angle of the bent corner. This procedure is time consuming and expensive.
  • the present invention has for its object to show a way, as from hollow profiled bars with less effort a frame-shaped spacer can be made with curved corners for insulating glass.
  • the invention should also be suitable for the use of hollow profile rods made of plastic.
  • the spacer according to the invention for insulating glass panes is formed from a hollow profile bar and accordingly has an outer wall, two flanks, an inner wall and at least one corner. A spacer with only a single corner comes for so-called
  • a single-corner spacer may have two integrally connected legs extending from the corner, which are arcuate and coincide with their ends.
  • a spacer with two corners can z.
  • B. have a torbogenartigen course.
  • a spacer with three corners may have an arcuate portion, but may also be formed of straight legs, which form an equilateral or an isosceles or another triangle.
  • the spacer In the preferred case of right-angled corners, the spacer generally has four corners.
  • At the corners of the hollow profile bar has in each case a recess which extends from the inner wall and extends into the flanks in the direction of the outer wall, without opening or piercing the outer wall.
  • a prefabricated angle piece is arranged in the hollow profile bar, which has two legs connected by a hinge, which in a position in which they enclose the predetermined, different from 180 ° angle, preferably a right angle relative are fixed to each other.
  • the spacer has also in the region of its corners a continuous outer wall, which stabilizes its shape and has a favorable effect on the sealing of the insulating glass pane.
  • the formation of wrinkles in the flanks can be avoided at the corners by the provided recesses.
  • the angle pieces can be used in the hollow profile bar, as long as this is still in its extended position.
  • the recesses which are located in Prof ⁇ lstab where the corners are to be formed, allow the angle piece to be inserted into the hollow profile bar, as long as the two legs of the angle piece are not yet fixed at a predetermined angle, in particular at right angles to each other. After insertion of the elbow is this, as well as the hollow profile bar itself, initially in an extended position.
  • the corners can then be formed simply by folding the hollow profile bar and the angle pieces stuck in it. In this case, the legs of the angle piece in a position in which they include the predetermined angle with each other, set. They thereby fix the crashing at a corner legs of the folded hollow profile bar at the predetermined angle.
  • the two ends of the hollow profile bar face each other and can be connected to each other by a conventional straight connector by this is plugged into both ends of the hollow profile bar. Thereafter, the spacer is immediately handled as a stable structure, because in contrast to the prior art according to EP 0 947 659 A2 or EP 1 030 024 A2, where the corners of the spacer frame are only stabilized when a injected into the corner areas plastic has become solid , Angle pieces used according to the invention unfold their stabilizing effect immediately.
  • the invention is suitable for thin-walled hollow profile bars made of metal.
  • the combination of a foldable elbow with a continuous at the corners outer wall of the hollow profile bar results in corners that are much more stable than when separate hollow profile bars are merely plugged together with rigid elbows.
  • the invention allows spacers with bent corners, the minimum
  • Bend radius have, allowing optimal utilization of the glass panes for the passage of light.
  • the invention makes it possible for the first time insulating glass panes, which have spacers with corners, in which elbows are inserted and still have on the outside of the spacer no to be filled with a sealing compound edge joint.
  • the invention is particularly suitable for spacers made of thin-walled plastic hollow profile rods. Such spacers are better, faster and cheaper stabilized by the combination of a foldable angle piece with a continuous at the corners outer wall of the hollow profile bar as spacers made of plastic hollow profile bars, in which the corners are stabilized by injecting a plastic mass.
  • the angle piece protrudes preferably with its two legs under the inner wall of the hollow profile bar, so that it is trapped positively in the hollow profile bar at least when the legs include the predetermined angle.
  • the legs of the angle piece can be set in different ways at the predetermined angle, in particular at right angles to each other.
  • One possibility is to fix the predetermined angle of the two legs of the angle piece to each other by imports of a fitting, which can be introduced only in the predetermined angular position of the legs.
  • the fitting may be, for example, a wedge or a pin.
  • Another way to set the two legs of the elbow at a predetermined angle to each other is to form the hinge resiliently in such a way that the two legs of the elbow are angled by spring force until they strike each other in the predetermined angular position.
  • the angle piece is formed so that its two legs are locked or latched together in their position in which they enclose the predetermined angle with each other and are positively connected with each other in this way.
  • the predetermined angular position of the two legs to each other to be secured.
  • a recess may be provided on the one leg of the angle piece, in which a provided on the other leg of the elbow
  • Protrusion positively engages when the two legs enclose the predetermined angle with each other. It is preferred for reasons of symmetry and the security of the connection of the legs, when adjacent to each other a projection and a recess are provided on both legs, which interlock mutually.
  • the two legs of the elbow can be connected together in different ways. They may be pivotally connected to each other in the manner of a hinge about a common pin or pin. Preferably, however, the two legs of the elbow are integrally connected to each other and formed between them existing joint in the manner of a foil joint.
  • Such an angle piece can be made particularly inexpensive as a molded part made of a plastic.
  • the joint is preferably arranged on the outside of the angle piece, which faces the outer wall of the hollow profile rod. This has the consequence that when bending the corner, the bending axis is close to the outer wall of the hollow profile bar, so that it is only moderately stressed to strain. In addition, the outer wall of the hollow profile bar is supported by the joint when bending the respective corner. Finally, in this position of the pivot axis, the recess provided in the hollow profile bar is closed by the bending process to the greatest possible extent not only on the flanks, but partly also on the inner wall.
  • the recess in the hollow profile bar preferably extends in the flanks up to the outer wall and preferably has the shape of a 90 ° miter cut at right-angled corners in the flanks.
  • the angle pieces are preferably designed such that their legs can not only be pivoted out of the extended position of the angle piece into their position at the predetermined angle in which they can be fixed relative to one another, but can also be pivoted in the opposite direction.
  • This allows an elegant way to use the angle pieces in a hollow profile bar:
  • the legs are pivoted in the opposite direction so far that their free ends can be introduced simultaneously through the recess in the inner wall of the hollow profile bar in this.
  • the elbow By pressure on the joint, the elbow can be transferred to its extended position, wherein it slides in with its two legs under the inner wall and into the cavity of the hollow profile bar.
  • stops on the legs of the elbow which are directed against the extending from the one flank to the other edge edges of the recess in the inner wall, a centering of the elbow in the recess, in which both attacks on the transversely bear to the longitudinal direction of the hollow profile bar extending edges of the recess in the inner wall of the hollow profile bar, whose distance is adapted to the distance of the stops.
  • the two stops are suitably at the same distance from the axis of the joint.
  • Another way to use the elbow in a recess of the hollow profile bar is to insert the angle with its one leg as far as inserted through the recess into the hollow profile bar until the other leg can be inserted through the recess in the inner wall through flat in the hollow profile bar , Then you move the stretched elbow into a centered position, which should take it for the bending of the corner and in which both ends of the still stretched elbow in the cavity of the hollow profile, because the still stretched elbow is longer than the recess in the hollow section bar, through which the elbow is inserted into the hollow profile bar.
  • the position that is to take the elbow for bending the corner can be determined by a stop which is provided on one of the legs and abuts when moving the elongated elbow in the hollow profile bar at the edge of the recess of the hollow profile bar. Also in this case you can have another stop on the other leg, with which the angle when inserting into the hollow profile bar at the opposite edge of
  • the sealant not only closes the interior of the insulating glass moisture-tight, but also closes the recess in the inner wall of the spacer, so that it is no longer visible in the finished insulating glass.
  • the spacer coated with the sealant provides a uniform, aesthetically pleasing appearance in the insulating glass pane.
  • a desiccant, which is needed to bind moisture, which is located in the interior of the insulating glass, must not be filled in a special operation in the hollow spacer, but can be incorporated into the sealant and applied together with this on the inner wall of the spacer , Suitable drying agents are molecular sieves (zeolites) in powder form.
  • the invention is also particularly suitable for spacers made of thin-walled hollow profile rods made of plastic.
  • the outer wall of the spacer no longer needs to be sealed.
  • An edge joint, the conventional insulating glass panes for the purpose of sealing, according to the invention dispensable. Rather, the outer wall of the spacer can be flush with the edges of the glass panes of the insulating glass.
  • an insulating glass pane with inventive spacer can be handled immediately after their assembly, also touched in the edge area and further processed, for example, be installed in prefabricated window frames. It does not have to wait until sealing compound has hardened in an edge joint.
  • a curing sealant which produces a permanently strong bond between the spacer and the two glass panes of the insulating glass, can be applied exclusively to the two edges of the hollow profile bar. There must be no edge joint in the insulating glass pane on the outside of the spacer to accommodate a hardening sealant, as are polysulfides (Thiokol) and polyurethane commonly used.
  • a layer thickness of 2 mm to 4 mm is sufficient.
  • the Qualtticiansan scholaren to hollow section bars, from which the spacers are formed, can be reduced because the hollow profile bars must fulfill only a mechanical task, namely to keep the glass panes of insulating glass under the typical conditions of use and loads at their predetermined distance and with a sealant and / or to combine with a curing sealant or adhesive. It can therefore be used very inexpensive and thin-walled hollow profile bars, which are optimized for minimal heat transfer. Any leaks in the profile bars do not lead to leakage of the insulating glass pane.
  • Sealants based on polyisobutylene generally have a dull black
  • This adapts to the appearance of the respective window frame color and reflects its color.
  • the hollow profile bar can already be coated on its inside and preferably also on an adjacent part of its flanks with the sealing compound before it is formed into a frame-shaped spacer. This not only allows a very efficient linear operation with a minimum of mechanical effort, but also leads to a particularly effective sealing of the corners of the spacer, in which
  • Part of the sealant is pressed in when folding the corners.
  • a hardening adhesive or sealing compound which is preferably applied to the flanks of the hollow profile bars, can already be advantageously applied before the hollow profile bar is formed into the frame-shaped spacer.
  • Procedure is suitable as an adhesive or sealant especially a reactive
  • flanks adhesive or sealant accumulates when folding at the corners on the flanks and is compressed during pressing of the insulating glass and pressed into the corner of the spacer and favors the formation of dense corners without the need for separate measures or costs.
  • the invention enables a very inexpensive and high-quality insulating glass production and is also and just for a rational production of large quantities of insulating glass in standardized dimensions.
  • the sealant is applied in such width to the inside of the hollow profile bar that it projects beyond the flanks and partially covered. This has the advantage that the sealant is compressed during subsequent assembly of the insulating glass pane between the two glass panes, which favors a tight connection with the two glass panes.
  • sealant and the hardening adhesive or sealing compound should connect to each other at the flanks without gaps.
  • a sealant and a separate adhesive or sealant which hardens can also be a uniform sealing and adhesive material, which provides both the desired security against the diffusion of water vapor in the insulating glass as well as a permanently solid bond between the spacer and the glass sheets the insulating glass ensures.
  • the uniform sealing and adhesive may be such.
  • Assembling the insulating glass pane reactively binds. If a uniform adhesive and sealant is used, it also preferably contains a powdery desiccant.
  • Spacers according to the invention are well suited to use one or more rungs in them.
  • the sprouts are used so that they are anchored directly or indirectly in the sealant, which is located on the inside of the spacer. Since the sprouts are thin-walled and hollow, the forces that must absorb the sealant to hold the sprouts, only small.
  • the sprouts are connected to separate foot parts, which are anchored directly in the form of a positive sealant.
  • the foot parts preferably have one Foot plate and a protruding from this connecting device, via which the connection between the foot part and a rung is made.
  • the base plate can be pressed into the sealant without piercing it, thus preserving its sealing effect. It fixes itself partly by the engagement in the sealant, partly by gluing with the sealant.
  • Particularly suitable is a base plate with recesses and / or openings, because they can absorb displaced sealant, whereby the base plate can interlock with the sealant.
  • the foot part For all sorts of sprouts one can manage with a single foot part, if the foot part is not inserted directly into the hollow end of the different sprouts, but is directly connected to an adapter, which in turn is inserted in the prefabricated sprout.
  • the adapter is adapted on the one hand to the individual profile cross section of the rung and on the other hand adapted to the shape of the sauteüs, and this adaptation to the shape of the foot can be the same for all adapters that are needed for the different profile cross sections of rungs.
  • a material can be used with which to form the thermoplastic spacer in TPS® insulating glass panes.
  • This is a polyisobutylene based material and 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 instead of a desiccant-free sealing compound. It is also advantageous, for example, to use a polyisobutylene as the basis for the desiccant-containing sealant and to concentrate the desiccant in the interior of the insulating glass facing sealing compound, which on the flanks of the Spacer applied sealant but poor at desiccant or completely free of desiccant form.
  • FIG. 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
  • FIG. 4 shows the hollow profile rod of FIG. 3 after folding a rectangular one
  • Figure 5 shows the corner angle of Figure 2 in a side view
  • FIGS. 6 to 8 show, in the case of a longitudinally cut hollow profile rod, how the angle piece from FIG. 5 can be inserted into the hollow profile bar shown in FIG.
  • FIG. 9 shows the formation of a corner in the hollow profile bar shown in FIG. 8,
  • Figure 10 shows a side view of a modified angle
  • FIGS. 11 to 13 show how the angle piece shown in FIG. 10 can be inserted into the hollow profile bar shown in FIG. 1,
  • FIG. 14 shows the formation of a right-angled corner in the hollow-section bar shown in FIG.
  • FIGS. 15 to 19 show diagrammatically the formation of a closed, frame-shaped, rectangular spacer by four turns of a hollow-section bar and connecting its ends to one another,
  • FIG. 20 shows schematically in a longitudinal section through the hollow profile bar a frame-shaped spacer which has been formed with angle pieces according to FIGS. 10 to 14,
  • FIG. 21 shows a cross section through a coated hollow profile rod according to FIG.
  • FIG. 22 shows, in a representation as in FIG. 21, the coated hollow profile rod with a foot part anchored thereto for a rung,
  • FIG. 23 shows the section of the hollow profile bar provided with a foot part according to FIG. 22 in a side view
  • FIG. 24 shows the section of the hollow profile bar with the foot part according to FIG. 23 in a plan view
  • FIG. 25 shows the section of the hollow profile rod of FIG. 24 in an oblique view during the feeding of a rung
  • FIG. 26 shows a longitudinal section through the lower end of the rung according to FIG. 25,
  • FIG. 27 shows a longitudinal section through the lower end of the rung according to FIG. 25 after being placed on the foot part
  • FIG. 28 shows a cross section through an edge section of an insulating glass pane with a spacer according to FIG. 21,
  • FIG. 29 shows a modification of the example shown in FIG. 28,
  • FIG. 30 shows, in an oblique view, how a first step for forming a recess takes place on a hollow profile rod according to FIG.
  • FIG. 31 shows, in an oblique view, how a second step for forming a recess takes place on a hollow profile rod according to FIG.
  • FIG. 32 shows, in an oblique view, the two ends of a coated hollow profile rod before it is connected to close the spacer;
  • FIG. 33 shows the connection point of the spacer after the closing of the spacer
  • FIG. 34 shows, in an oblique view, a tool for smoothing the connection point from FIG. 33, while it encloses the connection point
  • Figure 35 shows in cross-section through the hollow profile bar a nozzle surrounding the connection point of the spacer for subsequent application of sealant to the joint, and the
  • Figures 36 to 39 show a comparison with Figures 15 to 19 modified
  • FIGS. 40 and 41 show, as detail modified formations of a corner of the spacer.
  • FIG. 1 shows a section of a hollow profile bar 1 with an outer wall 2, with two flanks 3 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 a respective groove 6 or 7 3 and the groove 6 and the edge 4 and the groove 7 each form a side wall of the
  • Hollow profile bar 1 The outer wall 2 is on both sides on the flanks 3, 4 via.
  • the protruding part 8 of the outer wall 2 can either determine the distance between two glass panes, which are assembled with an intermediate gap of a spacer formed from the hollow profile bar 1 to an insulating glass pane, or it can serve to rest against the edge of the glass panes ( Figure 28).
  • the hollow profile bar 1 is made of plastic and can be produced by extrusion.
  • the hollow profile bar 1 is provided with a recess 9 which extends from the inner wall 5 to the flanks 3 and 4.
  • 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.
  • 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.
  • FIGS. 30 and 31 show how a first section (FIG. 30) and a second section (FIG. 31) are made on a hollow profile bar 1, as shown in FIG. 1, in order to produce the recess 9 shown in FIG.
  • the hollow profile bar 1 is first clamped from the outside in a tool which has two clamping jaws 47, which clamp the hollow profile bar 1 on the flanks 3 and 4.
  • the clamping jaws each have a wedge-shaped recess 48 and 49 which are opposite each other and correspond to the part 10 of the recess to be formed in the flanks 3 and 4.
  • a first cutting plate 50 is at one of its edges with a cutting edge 52 and at its bottom with a transverse provided to the cutting edge 52 extending wedge-shaped cutting profile 53.
  • a second cutting plate 51 has like the first cutting plate 50 at one of its edges a cutting edge 54 and on its underside a wedge-shaped cutting profile 55.
  • the second cutting plate 51 has a retracted position laterally of the edge 4 and can on a transverse to the longitudinal extent of the hollow profile bar 1 and parallel to the inner wall 5 extending path are moved back and forth.
  • Both inserts 50 and 51 are the same width, d. h., Their cutting edges 52 and 54 are the same length.
  • the second cutting plate 51 with its cutting edge 54 first of all dips into the part of the recess 9 already formed by the first cutting plate 50 and expands it by separating the part of the inner wall 5 that has remained stationary at first and hitting the flank at the transition from the groove 6 3 on the local side wall of the hollow section bar 1 and cuts them.
  • the recessed relative to the cutting edge 54 cutting profile 55 then strikes the flank 3 and punches against the clamping jaws 47 lying there as abutment a wedge-shaped portion 10, as shown in Figure 31. Thereafter, the second cutting plate 51 is moved back to its original position.
  • the clamping jaws 47 with their wedge-shaped recesses 48 and 49 thus not only serve for clamping the hollow profile bar 1, but also serve as matrices for the two cutting plates 50 and 51.
  • the hollow profile bar 1 can also by means of two downholders, which on both sides of the Cutting plates 50 and 51 are to be clamped against a base. For clarity, the document and the hold down not shown.
  • the pad supports the outer wall 2 of the hollow profile bar 1, the hold-down act on the inner wall 5 of the hollow profile bar 1 from the opposite side.
  • the recess 9 can also be formed with a single cutting plate, which is like the second cutting plate 51 moves parallel to the inner wall 5 and pierces the hollow profile bar 1 full width.
  • the recess 9 can also be formed by milling and / or drilling, but working with one or two inserts is faster and less expensive.
  • Chips and other cutting waste can be sucked off.
  • 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.
  • Elbow 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 - formed flat and extends in the extended position of the angle 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 inserted in an extended position angle piece 13 with his Foil joint 16 of the outer wall 2 and with its side facing away from the film hinge 16 side of its legs 14 and 15 of the inner side 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.
  • 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 limit the running in the inner wall 5 parts 11 of the recess 9 and extending 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.
  • 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.
  • the legs 14 and 15 in the vicinity of the foil hinge 16 each have a hook 22.
  • the two hooks 22 have in opposite directions, namely towards 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.
  • the foil hinge 16 is preferably designed to be in the bent state generates a restoring force which causes the hooks 22 to be 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.
  • 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 Hohlprof ⁇ lstab 1.
  • 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.
  • the hollow profile bar 1 is linearly moved past one or more nozzles, from which the sealing compound 27 and the adhesive 28 can emerge controlled synchronously 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 a material based on polyisobutylene, for example, and preferably contains a desiccant in powder form.
  • the sealing compound 27 covers the entire inner wall 5 and extends laterally far beyond this, that it also extends beyond the alignment of the flanks 3 and 4 and at least partially still the grooves 6 and 7 fills.
  • the adhesive 28, which is preferably a reactive hot-melt, is applied continuously to the sealant 27 subsequently to the flanks 3 and 4, preferably by nozzles which shortly after a nozzle for the application of the sealant 27 for Application come. This has the advantage that the already applied sealing compound 27 represents a limit for the application of the adhesive 28 and that the application of the sealant 27 can be controlled independently of the application of the adhesive 28, which in view of different properties such as toughness and compressibility of the masses can be beneficial.
  • the hollow profile bar 1 is coated with the sealing compound 27 and the adhesive 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 film 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.
  • FIG. 10 shows a modified embodiment of the angle piece 13. It differs from the angle piece 13 shown in FIG. 5 in that one of the angles
  • Stops 14a, 15a in the example shown, it is the stop 14a, closer to the hooks 22nd has been added, and indeed by such a degree that the distance from the stop 14a to the tip of the other leg 15 is not more than the length of the recess 9 in the inner wall 5.
  • the leg 14 is inserted into the Hohlprof ⁇ stab 1 until the stop 14a abuts the edge 19.
  • the other leg 15 can be pivoted through the recess 9 through to the outer wall 2 ( Figure 12).
  • the elongated angle 13 is displaced in the hollow profile bar 1 until the stop 15a abuts the edge 20 of the recess 9 (FIG. 13).
  • the foil joint 16 is now centered on the intended bending axis 13.
  • FIGS. 15 to 19 The four-fold bending or folding of a hollow-section bar 1 into a frame-shaped spacer is shown schematically in successive steps in FIGS. 15 to 19.
  • the hollow profile bar 1 lies with its outer wall 2, for example on a horizontally extending support 29, for example on a conveyor belt, and against a support surface 30, which is coated with a plastic, on which the sealing compound 27 and the adhesive 28 not be liable.
  • plastics are known in the art.
  • a talc-doped silicone is suitable.
  • the second corner 32 is formed by the second leg Ib opposite the fixed third leg Ic pivoted by a right angle ( Figure 16).
  • the third corner 33 is formed by pivoting the third leg Ic relative to the retained fourth leg Id by 90 °
  • the fourth corner 34 is formed by opposing the fourth leg Id with respect to the retained fifth leg Ie (or the fifth leg Ie the fixed fourth leg Id) pivoted by a right angle.
  • the steps can also be carried out in reverse order.
  • the two ends of the hollow profile bar 1 are opposite each other (Figure 18). They are connected to each other by a straight connector 35, which was expediently inserted after cutting the length of the hollow profile bar half in one end and now with its other half in the other end is plugged ( Figure 19).
  • the frame-shaped spacer is closed and is thanks to its stiff corner training a particularly stable structure.
  • the fifth leg Ie has expediently for all spacer formats the same length of for example 10 cm, which favors a standardized operation.
  • the joint between the two ends of the hollow profile bar 1 can be additionally sealed after closing the frame if necessary, if the sealant 27 and the adhesive 28 should not readily connect there close together, for example by an additional order of sealant 27 and / or adhesive 28.
  • FIG. 32 shows, in an oblique view, the two opposite ends of the hollow profile bar 1 after all the corners for the spacer have been bent.
  • a straight connector 35 which protrudes with its half length over the end of the hollow profile bar 1.
  • an unillustrated stopper which is provided in the middle of the connector 35, that this is inserted too far into one of the ends of the hollow profile bar 1.
  • the sealant 27 and the adhesive applied to the flanks 3 and 4 adhesive 28 extends to a portion of the length of the protruding portion of the connector 35, wherein the thickness of the coating with increasing distance from the end of the hollow profile bar 1 preferably drops steadily to zero.
  • the coating of the hollow profile bar with the sealing compound 27 and with the adhesive 28 expediently begins on the connector 35.
  • a gradual increase in the layer thickness is readily achieved, since the coating process can hardly suddenly start in a stepped fashion for reasons of continuity.
  • the contour of the coating on the connector 35 by trimming, for example by means of a heated wire, be subsequently changed, so as to obtain the illustrated in Figure 32, tapered contour.
  • the mold 56 initially encloses with open jaws 57 and 58, the junction in the spacer and is then gradually narrowed to the required width, the mold 56 can be moved in the longitudinal direction of the hollow profile bar 1, preferably reciprocating. Thereafter, the mold 56 is opened and removed again.
  • such a mold 56 can also be used to one end of the coated hollow profile bar 1 for closing the spacer approach the opposite, fixed end of the hollow profile bar 1. Due to the large-area enclosure of the coating of sealant 27 and adhesive 28 can be transmitted without disadvantage for the coating sufficient force to plug the connector 35 into the one open end of the hollow profile bar 1 ( Figure 32).
  • This gap can be subsequently closed by enclosing the sealing compound 27 and the adhesive 28 in the vicinity of the gap with a nozzle 59, which has an inner side whose contour is adapted to the contour of the coating of sealing compound 27 and adhesive 28 (FIG. 35) ).
  • the width of the nozzle 59 is adjustable, for example, characterized in that in the nozzle 59 two jaws 57 and 58 are provided which are slidably mounted to change their mutual distance in the nozzle body and to which each half of the contour for the coating made of sealant 27 and adhesive 28 is formed. After enclosing the joint with the nozzle 59, the gap in the coating can be closed by injecting sealant 27. An additional injection of adhesive 28 is possible at this point, but not required. By moving the nozzle 59 in the longitudinal direction of the hollow profile bar 1, the junction can be smoothed and then the nozzle 59 is opened and removed.
  • the structure of the mold 56 ( Figure 34) has similarities with the structure of the nozzle 59. However, the mold 56 has no channel 60 for supplying sealant and it is only one of the jaws 57, 58 slidably.
  • Figure 20 shows the internal structure of a frame-shaped spacer with elbows 13 of the type shown in Figures 10 to 14, wherein for reasons of clarity, the coating with a sealant 27 and an adhesive 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 21, is particularly well suited to install one or more rungs 36.
  • 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.
  • the toothing between the sealing compound 27 and the foot part 37 is particularly good when the foot part 37 has a plate 38 which is provided with openings 39, as shown in Figure 24. 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.
  • a connecting device 40 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 Aufhahmeteil 42, which is in the end of the rung 36.
  • 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 the same for all possible rungs 36. 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.
  • Coating should be marked at the points where a rung 36 is to be ground, for Example by an inkjet printer.
  • the foot part 37 can be pressed by hand into the sealant 27.
  • 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.
  • the rungs 36 may be plugged onto the foot portions 37 shortly before the final closure of the spacer (FIG. 18), see FIGS. 25 and 26.
  • Figure 28 shows a cross section through a portion of an insulating glass pane, consisting of two individual glass sheets 45 and 46, between which a frame-shaped
  • Spacer is located, which is formed from a hollow profile rod 1, which was previously, as shown in Figure 21, coated with a sealant 27 and 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 against chipping.
  • the insulating glass pane illustrated in FIG. 29 differs from the insulating glass pane illustrated in FIG. 28 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 are between the two
  • 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 still needs to be sealed.
  • FIGS. 36 to 39 show a modified procedure with respect to FIGS. 15 to 19 when the hollow profile bar 1 is bent.
  • An essential difference with respect to the procedure illustrated in FIGS. 15 to 19 is that the hollow profile bar 1 is folded during the folding or bending of the four corners 31 until 34 is not moved longitudinally on its base 29, but maintains its position.
  • the hollow profile bar 1 is next to its first bending point, at which the first corner 31st is formed, fixed, for example, by a non-illustrated hold-down presses the second leg Ib of the hollow section bar 1 against the pad 29 or in that a pliers, not shown clamps the second leg Ib to the protruding parts 8 of its outer wall 2.
  • the first leg Ia is angled.
  • the length X of the first leg Ia is chosen to be the same for all spacer formats, for example between 6 cm and 10 cm.
  • the operator can grasp the fifth leg Ie and turn it to form the fourth corner 34.
  • the operator can grasp the fourth leg Id and turn it to form the third corner 33.
  • it can grasp the third leg Ic and bend it to form the second corner 32. It is even more elegant and easier when the operator grasps the fifth leg and takes it in a single step
  • a guide device 61 may be provided on the support wall, for example a sheet projecting beyond the support surface 30 and aligned with the outer wall 2 of the first leg 1a, which facilitates the operator to place the fifth leg Ie on the first leg 1a align.
  • Insulating glass panes with several corners accordingly have a spacer with several corners. It is preferred, in each corner of the spacer in each case an elbow provided with two legs connected by a hinge and merge the beginning and end of the spacer forming hollow profile bar between two corners and connect with each other by a straight connector. However, it would also be possible to end in a spacer with multiple corners, the two ends of the spacer forming hollow profile bar in the region of a corner and there by a
  • FIGS. 40 and 41 Two examples of such a corner formation are shown in FIGS. 40 and 41.
  • the ends of the hollow profile bar 1 are cut off at an angle of 45 °, so that they meet at this angle and touch each other completely.
  • the corner is held together and stabilized and in particular when the base of the U-profile forms the outer side 63 of the elbow 13a.
  • the embodiment shown in FIG. 41 differs from the embodiment shown in FIG. 40 in that the two ends of the hollow profile rod 1 are truncated and touch only at the edge of the inner wall 5 of the hollow profile rod 1.
  • the angle 13b is expediently a solid plastic molded part, the two legs stuck frictionally in the two ends of the hollow profile bar 1, wherein the two legs of the elbow 13b are connected by a solid body 13d, which is the angle between the ends of the hollow profile bar 1 fills and from each of which a thin-walled, hood-like cover 13c goes out, which has a U-profile in cross section and the outer wall 2 and the two flanks 3 and 4 of the hollow profile bar 1 covers a piece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

Elément d'écartement en forme de cadre pour des vitrages isolants, formé par pliage à partir d'une tige (1) de profilé creux ou à partir de tiges de profilés creux qui possèdent une paroi externe (2), deux flancs (3, 4) et une paroi interne (5). Ledit élément comporte au moins un coin (31 à 34) à l'endroit duquel la tige (1) de profilé creux possède un évidement qui part de la paroi interne (5) et s'étend dans les flancs (3, 4) en direction de la paroi externe (2), sans ouvrir ladite paroi externe (2). Selon la présente invention, un élément d'angle (13), qui est placé dans la tige (1) de profilé creux, dans chaque coin (31 à 34) de l'élément d'écartement, possède deux pattes (14, 15) reliées par une articulation (16) qui sont bloquées l'une par rapport à l'autre dans une position dans laquelle elles forment l'une avec l'autre un angle prédéterminé.
EP06706283A 2005-01-18 2006-01-18 Element d'ecartement pour vitrages isolants et procede de production dudit element Withdrawn EP1841940A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005002284 2005-01-18
DE102005037303A DE102005037303A1 (de) 2005-01-18 2005-08-02 Abstandhalter für Isolierglasscheiben und Verfahren zu seiner Herstellung
DE102005060101A DE102005060101A1 (de) 2005-01-18 2005-12-16 Abstandhalter für Isolierglasscheiben und Verfahren zu seiner Herstellung
PCT/EP2006/000412 WO2006077096A1 (fr) 2005-01-18 2006-01-18 Element d'ecartement pour vitrages isolants et procede de production dudit element

Publications (1)

Publication Number Publication Date
EP1841940A1 true EP1841940A1 (fr) 2007-10-10

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Application Number Title Priority Date Filing Date
EP06706283A Withdrawn EP1841940A1 (fr) 2005-01-18 2006-01-18 Element d'ecartement pour vitrages isolants et procede de production dudit element

Country Status (4)

Country Link
US (1) US20080263973A1 (fr)
EP (1) EP1841940A1 (fr)
CA (1) CA2595273A1 (fr)
WO (1) WO2006077096A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2921520B1 (fr) * 2007-09-20 2014-03-14 Saint Gobain Element de connexion electrique et vitrage pourvu d'un tel element
DE202008018126U1 (de) 2007-12-11 2011-12-28 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Lötanschlusselement
WO2009103511A1 (fr) 2008-02-19 2009-08-27 Plus Inventia Ag Écarteur avec un agent de séchage pour un vitrage isolant
EP2288777A2 (fr) * 2008-04-11 2011-03-02 Plus Inventia AG Procédé de production d'un angle d'un intercalaire en forme de cadre pour vitrages isolants et intercalaires et vitrages isolants produits par ce procédé
US8528293B2 (en) * 2009-03-27 2013-09-10 Quanex Building Products Corporation Foldable cornerlock for a frame assembly
RU2582076C2 (ru) * 2011-02-25 2016-04-20 С Е С Контрол Энкложе Системз Гмбх Уплотнительный элемент и уплотнительная система для полых профилей
GR1009147B (el) * 2015-11-18 2017-10-30 Αθανασιος Παυλου Λεονταριδης Γωνιακος συνδεσμος ζευγους προφιλ αλουμινιου και συναφων υλικων
MX2018012106A (es) * 2016-04-05 2018-12-17 Saint Gobain Unidad de vidrio aislante para una unidad de refrigeracion.

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Publication number Priority date Publication date Assignee Title
GB1381507A (en) * 1971-08-23 1975-01-22 Formica Int Corner joint for tubular materials
US5048997A (en) * 1989-08-16 1991-09-17 Alumet Mfg. Inc. Flexible cornerpiece for spacer frame for insulated glass panel
US5154034A (en) * 1991-01-11 1992-10-13 Stanek Ronald F Muntin bar stabilizer with pad and method of stabilizing
DE19814044A1 (de) * 1998-03-30 1999-10-14 Lenhardt Maschinenbau Abstandhalterrahmen aus glasfaserverstärktem Kunststoff für Isolierglasscheiben und Verfahren zum Bilden von Ecken in einem solchen Abstandhalterrahmen

Non-Patent Citations (1)

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Title
See references of WO2006077096A1 *

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WO2006077096A1 (fr) 2006-07-27
US20080263973A1 (en) 2008-10-30
CA2595273A1 (fr) 2006-07-27

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