EP0003715B1 - Spacer frame for multiple glazed unit - Google Patents

Spacer frame for multiple glazed unit Download PDF

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Publication number
EP0003715B1
EP0003715B1 EP19790810004 EP79810004A EP0003715B1 EP 0003715 B1 EP0003715 B1 EP 0003715B1 EP 19790810004 EP19790810004 EP 19790810004 EP 79810004 A EP79810004 A EP 79810004A EP 0003715 B1 EP0003715 B1 EP 0003715B1
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EP
European Patent Office
Prior art keywords
profile
grooves
frame
width
corner
Prior art date
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EP19790810004
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German (de)
French (fr)
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EP0003715A1 (en
Inventor
Hermann Dipl. Ing. Wölfingseder
Werner Wölfingseder
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Sps Glasbau Seraphin Puempel & Sohne GmbH
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Sps Glasbau Seraphin Puempel & Sohne GmbH
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Publication of EP0003715A1 publication Critical patent/EP0003715A1/en
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window 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
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663Elements for spacing panes
    • E06B3/667Connectors therefor

Definitions

  • the invention relates to a spacer frame for insulating glass panes made of a hollow profile rod, in the cavity of which granular, hygroscopic material is contained and whose inner wall section has a slit or perforation running in the longitudinal direction of the hollow profile rod, and whose corner areas are cut and made by bending.
  • Spacer frames for insulating glass panes are known in many forms. They are usually made from light metal profiles. The profile strips are cut off according to the side lengths of the frame and then the frame is assembled from these individual profile bars. Separate corner connectors or corner pieces are available for the frame corners (US Pat. No. 3,380,145). It is also possible to have the ends of the individual profile bars butt against each other in the frame corners or to join them together using miter cuts. All profile strips for such frames have in common that they are designed as hollow profiles. The hollow of these profiles is used to hold hygroscopic materials that are available in the form of small beads from relevant companies on the market.
  • This material interacts with the interior of the insulating glass pane in a known manner via the slitting or perforation in the hollow profile.
  • the mentioned corners of the spacer frame whether they are formed by butting the profile bars together, by connecting them in a miter cut or by using corner angles, are so-called weak points in every insulating glass pane, which require particularly careful processing and machining and which nevertheless frequently give rise to problems to make complaints, especially for those panes that are exposed to an extreme atmosphere (for example panes in indoor swimming pools or in workshops).
  • US-PS 3540118 It is also known (US-PS 3540118) to surround insulating glass panes with rounded corner areas on the outside with a U-shaped strip.
  • U-shaped border strip In order to be able to adapt the U-shaped border strip to the rounded corner area, several V-shaped incisions are provided in the cheeks of this cross-sectionally U-shaped strip, so that this U-shaped strip can subsequently be bent.
  • This U-shaped bar is then on the outside of the insulating glass pane and forms an outer frame, so to speak.
  • a one-piece insulating glass frame is also known (DE-OS 2160847), which is bent from an originally straight profile bar.
  • the profile bar With its central cross-sectional area, the profile bar forms a spacer for the glass panes and it has legs on the outside which, together with the central part, limit receiving grooves for the glass panes.
  • This profile strip has approximately a U-shaped cross section and the middle part serving as a spacer is equipped with a central continuous bore.
  • This insulating glass unit is assembled in such a way that the glass panes are inserted into the outer grooves and then the side flanks delimiting these grooves are pressed against the glass pane.
  • This assembly has apparently not been successful in practice.
  • the outer flank webs In order to properly seal the parts against each other, the outer flank webs must be pressed against the pane and pressed against it. This pressing or rolling down the flank webs leads p iben usually fracture of the Sch.
  • To form the spacer frame it was provided in this known construction to cut a continuous profile strip of the type mentioned V-shaped in the corner regions of the frame to be formed and then to bend the individual successive sections against one another.
  • FIG. 1 The edge of an insulating glass pane is shown in cross section in FIG. 1.
  • Two panes 1 and 2 are spaced apart from one another by a frame 3 which is made from a light metal profile 20.
  • the profile 20 shown in FIG. 1 is known per se and is formed by rolling.
  • the wall section 4 of the profile bar 20, which forms the inside of the frame 3, has a slot 5.
  • the side flanks 6 are stepped and thereby taper the profile width in the lower part of the profile bar 20 or on the outside of the frame.
  • a permanently elastic sealant and adhesive 7 is on the one hand on the flanks of the profile rod 20, on the other hand on the glass panes 1 and 2 and ensures a functional bond of these parts.
  • the outer cavity which is delimited by the pane edges and by the outside of the profile frame, is filled with a likewise permanent sealing compound 8.
  • the cavity 9 of these profile bars 20 receives a hygroscopic material 19 which interacts with the interior 10 of the pane via the slit 5 or via a possible perforation in this wall section 4.
  • This hygroscopic material is offered by the relevant industry in the form of small beads. The diameter of these beads is approximately 1 to 2 mm.
  • a profile rod 20 of the length that corresponds to the circumference of the frame to be manufactured is initially selected.
  • the profile bar (FIG. 2) is now cut in the area of the bending points, specifically in that wall section 4 which has the slits 5 or perforations.
  • Several parallel incisions 11 run transversely to the longitudinal extension of the profile bar.
  • Crosspieces 14 remain between the individual incisions 11.
  • the width b of the individual incisions 11 corresponds approximately to the width c of the remaining crosspieces 14.
  • the incision depth is chosen to be somewhat greater than would correspond to the wall thickness s of the profile bar 20.
  • the depth t of the incisions 11 corresponds at least to the wall thickness s of this wall section 4.
  • the sections A and B of the profiled bar formed by such incisions 11 are bent against one another (arrow 12) and thereby a frame corner (FIG. 3) is formed.
  • the outside of the frame deforms not inconsiderably in this corner area (FIG. 5), but it is essential that the side flanks 13 of the profile do not bulge outwards, but remain essentially flat, as extensive tests have confirmed.
  • the corner zones or their flanks 13 can also be carefully guided in a workpiece so that these flanks are reliably prevented from bulging in the corner area.
  • the two outer boundary edges 15 and 16 of these incisions abut one another (FIG. 5) and clamp between them: the webs 14 are positively inserted, an essentially uniform material profile being achieved in the flanks of the corner.
  • Such a frame corner with the position of the deformed incisions is shown in a side view in FIG. 5.
  • the total width B of the incisions (FIG. 4) is chosen to be approximately 6 mm.
  • the incisions are each about 1 mm wide and the webs remaining between them are about 1.5 minutes. This results in a total incision width B of 6 mm.
  • the profile strips can be filled with the aforementioned hygroscopic material before this processing or after cutting.
  • the end sides of the profile are then blocked so that this spherical material cannot flow out.
  • the special shape of the incisions also prevents this hygroscopic material from escaping.
  • the incisions are placed in a section bar cut to length so that in the frame to be manufactured (FIG. 6) the two profile ends 17 and 18 lie in a straight part of the frame to be manufactured.
  • these ends can easily be combined with a suitable coupling or with a suitable adapter.
  • this joint reaches an area of the frame that is easy to control in terms of production technology in the manufacture of the insulating glass pane.
  • the previously so feared weak points in these insulating glass panes are therefore completely eliminated thanks to the invention.
  • the invention also includes other profile shapes, such as are customary for the production of such spacer frames and which also have hollow chambers for holding hygroscopic material.
  • profile shapes are shown in FIGS. 1 to 10, FIG. 7 showing the prepared and FIG. 7 the bent or bent profile piece, and this profile has a simple rectangular cross section. This profile is formed by roles.
  • the starting material for this profile was a flat strip, which was folded into this closed box profile by means of appropriate deflection rollers.
  • FIG. 9 shows a drawn profile with a longitudinal perforation 21, also prepared for the bending process
  • FIG. 10 shows the bent or bent profile.
  • Such profiles generally consist of light metal alloys.
  • the invention is not limited to such lead metal profits, it includes those profiles which are drawn or rolled, for example, from steel.
  • the side flanks remain essentially flat, which is extremely important for these frame profiles, for reasons that have already been explained in the introduction.
  • the outer boundary side is deformed not insignificantly in the corner area, but this does not affect the quality of the frame, on the contrary, this deformation then saves a lot of space in the outer corner area of the pane, which can then be completely filled with sealant, so that the sealing material has accumulated in the areas of increased risk.

Description

Die Erfindung bezieht sich auf einen Distanzhalterahmen für Isolierglasscheiben aus einem Hohlprofilstab, in dessen Höhlung körniges, hygroskopisches Material enthalten ist und dessen seine Innenseite bildender Wandabschnitt eine in Längsrichtung des Hohlprofilstabes verlaufende Schlitzung oder Perforierung aufweist, und dessen Eckbereiche eingeschnitten und durch Biegen hergestellt sind.The invention relates to a spacer frame for insulating glass panes made of a hollow profile rod, in the cavity of which granular, hygroscopic material is contained and whose inner wall section has a slit or perforation running in the longitudinal direction of the hollow profile rod, and whose corner areas are cut and made by bending.

Distanzhalterahmen für Isolierglasscheiben sind in vielfältiger Form bekannt. Sie werden in der Regel aus Leichtmetallprofilen hergestellt. Entsprechend den Seitenlängen des Rahmens werden die Profilleisten abgeschnitten und dann wird der Rahmen aus diesen einzelnen Profilstangen zusammengefügt. Für die Rahmenecken stehen eigene Eckverbinder oder Eckstücke zur Verfügung (US-PS 3 380145). Ferner ist es möglich, die Enden der einzelnen Profilstäbe in den Rahmenecken stumpf aneinander stoßen zu lassen oder auch über Gehrungsschnitte zusammenzufügen. Allen Profilleisten für solche Rahmen ist gemeinsam, daß sie als Hohlprofile ausgebildet sind. Die Höhlung dieser Profile dient der Aufnahme von hygroskopischen Materialien, die in Form von kleinen Kügelchen von einschlägigen Unternehmen auf dem Markt angeboten werden. Über die Schlitzung bzw. Perforierung im Hohlprofil wirkt dieses Material mit dem Innenraum der Isolierglasscheibe in bekannter Weise zusammen. Die erwähnten Ecken des Distanzhalterahmens, seien sie nun durch stumpfes Aneinanderstoßen der Profilstäbe, durch Verbinden derselben in einem Gehrungsschnitt oder durch den Einsatz von Eckwinkeln gebildet, sind bei jeder Isolierglasscheibe sogenannte Schwachstellen, die einer besonders sorgfältigen Ver- und Bearbeitung bedürfen und die trotzdem häufig Anlaß zu Reklamationen bilden, vor allem bei solchen Scheiben, die einer extremen Atmosphäre ausgesetzt sind (beispielsweise Scheiben in Hallenbädern oder in Werkhallen).Spacer frames for insulating glass panes are known in many forms. They are usually made from light metal profiles. The profile strips are cut off according to the side lengths of the frame and then the frame is assembled from these individual profile bars. Separate corner connectors or corner pieces are available for the frame corners (US Pat. No. 3,380,145). It is also possible to have the ends of the individual profile bars butt against each other in the frame corners or to join them together using miter cuts. All profile strips for such frames have in common that they are designed as hollow profiles. The hollow of these profiles is used to hold hygroscopic materials that are available in the form of small beads from relevant companies on the market. This material interacts with the interior of the insulating glass pane in a known manner via the slitting or perforation in the hollow profile. The mentioned corners of the spacer frame, whether they are formed by butting the profile bars together, by connecting them in a miter cut or by using corner angles, are so-called weak points in every insulating glass pane, which require particularly careful processing and machining and which nevertheless frequently give rise to problems to make complaints, especially for those panes that are exposed to an extreme atmosphere (for example panes in indoor swimming pools or in workshops).

Es ist auch bekannt (US-PS 3540118), Isolierglasscheiben mit abgerundeten Eckbereichen außen mit einer U-förmigen Leiste einzufassen. Um die U-förmige Einfaßleiste dem abgerundeten Eckbereich anpassen zu können, werden in den Wangen dieser im Querschnitt U-förmigen Leiste mehrere V-förmige Einschnitte vorgesehen, so daß anschließend diese U-förmige Leiste gebogen werden kann. Diese U-förmig gebogene Leiste liegt dann außen an der Isolierglasscheibe an und bildet sozusagen einen äußeren Rahmen. Es ist ferner ein einstückiger Isolierglasrahmen bekannt (DE-OS 2160847), der aus einem ursprünglich geraden Profilstab gebogen wird. Der Profilstab bildet mit seinem mittleren Querschnittsbereich einen Abstandshalter für die Glasscheiben und er besitzt außenseitig Schenkel, die zusammen mit dem Mittelteil Aufnahmenuten für die Glasscheiben begrenzen. Diese Profilleiste besitzt etwa einen U-förmigen Querschnitt und der als Abstandshalter dienende Mittelteil ist mit einer zentralen durchlaufenden Bohrung ausgestattet.It is also known (US-PS 3540118) to surround insulating glass panes with rounded corner areas on the outside with a U-shaped strip. In order to be able to adapt the U-shaped border strip to the rounded corner area, several V-shaped incisions are provided in the cheeks of this cross-sectionally U-shaped strip, so that this U-shaped strip can subsequently be bent. This U-shaped bar is then on the outside of the insulating glass pane and forms an outer frame, so to speak. A one-piece insulating glass frame is also known (DE-OS 2160847), which is bent from an originally straight profile bar. With its central cross-sectional area, the profile bar forms a spacer for the glass panes and it has legs on the outside which, together with the central part, limit receiving grooves for the glass panes. This profile strip has approximately a U-shaped cross section and the middle part serving as a spacer is equipped with a central continuous bore.

Die Montage dieser Isolierglaseinheit erfolgt in der Weise, daß die Glasscheiben in die äußeren Nuten eingefügt werden und dann werden die diese Nuten begrenzenden Seitenflanken gegen die Glasscheibe gedrückt. Diese Montage hat sich offenbar in der Praxis nicht durchsetzen können. Um nämlich die Teile gegeneinander ordnungsgemäß abzudichten, müssen die äußeren Flankenstege gegen die Scheibe gedrückt, an diese angepreßt werden. Dieses Andrücken oder Niederwalzen der Flankenstege führt in der Regel zum Bruch der Schpiben. Zur Bildung des Distanzhalterahmens wurde bei dieser bekannten Konstruktion vorgesehen, eine durchlaufende Profilleiste der erwähnten Art V-förmig in den Eckbereichen des zu bildenden Rahmens einzuschneiden und dann die sogewonnenen einzelnen aufeinanderfolgenden Abschnitte gegeneinander zu biegen. Die V-förmigen Gehrungsschnitte werden praktisch jeweils bis zur Basisfläche der Profilleiste durchgezogen, so daß diese Profilleiste über ihre gesamte Höhe in diesen Eckbereichen V-förmig durchgeschnitten ist, im wesentlichen als bekannter Gehrungsschnitt vorliegt. Eine solche Maßnahme wäre wohl ohne Zweifel mit Erfolg dann zu praktizieren, wenn im zentralen Hohlraum des mittleren Abstandshalters des Profils kein hygroskopisches Material vorhanden wäre. Dieses in Form kleiner Kügelchen hier eingefügte Material fließt jedoch sofort aus, sobald die V-förmigen Einschnitte gemacht sind und die so vorbereitete Profilleiste zur Fertigung des Rahmens manipuliert wird. Bis der Rahmen geschlossen wäre, wäre dieses körnige hygroskopische Material ausgeflossen. Ein Rahmen ohne den Einschluß dieses hygroskopischen Materials ist jedoch für Isolierglaseinheiten nach dem heutigen Stand der Technik nicht brauchbar. Diese bekannte Maßnahme, wie vorstehend geschildert, hat sich daher aus den beiden aufgezeigten Gründen in der Praxis nicht durchsetzen können.This insulating glass unit is assembled in such a way that the glass panes are inserted into the outer grooves and then the side flanks delimiting these grooves are pressed against the glass pane. This assembly has apparently not been successful in practice. In order to properly seal the parts against each other, the outer flank webs must be pressed against the pane and pressed against it. This pressing or rolling down the flank webs leads p iben usually fracture of the Sch. To form the spacer frame, it was provided in this known construction to cut a continuous profile strip of the type mentioned V-shaped in the corner regions of the frame to be formed and then to bend the individual successive sections against one another. The V-shaped miter cuts are practically pulled through to the base surface of the profile strip, so that this profile strip is cut through a V-shape over its entire height in these corner regions, essentially as a known miter cut. Such a measure would undoubtedly be practiced successfully if there was no hygroscopic material in the central cavity of the middle spacer of the profile. However, this material, which is inserted here in the form of small beads, flows out immediately as soon as the V-shaped incisions have been made and the profile strip prepared in this way is manipulated to produce the frame. Until the frame was closed, this granular hygroscopic material would have flowed out. However, a frame without the inclusion of this hygroscopic material cannot be used for insulating glass units according to the current state of the art. This known measure, as described above, has therefore not been able to prevail in practice for the two reasons shown.

Der Erfindung liegt nun die Aufgabe zugrunde, den Biegebereich so auszubilden, daß nicht nur ein Ausfließen des körnigen hygroskopischen Materials beim Einschneiden und nachträglichen Manipulieren der Profilleiste vermieden wird, sondern daß sich auch die Flanken des Hohlprofilstabes beim Biegen nicht verwerfen, vielmehr im wesentlichen plan bleiben, um so eine eindeutige und definierte Auflagefläche für die nachfolgende Montage der Glasscheiben zu erhalten. Erfindungsgemäß gelingt dies nun dadurch, daß im noch nicht gebogenen Zustand des Hohlprofils zur Bildung einer Rahmenecke mehrere unmittelbar nebeneinanderliegende, zwischen sich Stege aufweisende Einschnitte vorgesehen sind und die Tiefe der Einschnitte nur ein Ausmaß aufweisen, das etwa der Stärke des Wandabschnittes entspricht und die Breite dieser Einschnitte gleich oder kleiner ist als die Körnung des hygroskopischen Materials. Um die Erfindung zu veranschaulichen, sei sie anhand verschiedener Ausführungsformen näher erläutert. Es zeigt:

  • Fig. 1 einen Querschnitt durch den Rand einer Isolierglasscheibe;
  • Fig. 2 in Schrägsicht einen durch Einschnitte vorbereiteten Eckbereich eines Profilstabes nach Fig. 1 vor und
  • Fig. 3 nach dem Biegen;
  • Fig.4 einen Längsschnitt durch das noch gestreckte Profil nach Fig. 2 im Bereich der für die Eckenbildung vorgesehenen Einschnitte;
  • Fig.5 die Ansicht der durch Biegen erzielten Rahmenecke nach Fig. 3 und
  • Fig. 6 eine Ansicht eines Rahmens und die Lage der Endstoßstelle;
  • Fig. 7 bis 10 andere Profilformen.
The invention is based on the object of designing the bending area in such a way that not only does the granular hygroscopic material flow out when cutting and subsequent manipulation of the profile strip, but that the flanks of the hollow profile rod do not warp during bending, but rather remain essentially flat in order to obtain a clear and defined contact surface for the subsequent installation of the glass panes. According to the invention, this is now achieved in that, in the not yet bent state of the hollow profile to form a frame corner, a plurality of incisions lying directly next to one another and having webs are provided and the depth of the incisions only have a dimension that corresponds approximately to the thickness of the wall section and the width of these incisions is equal to or smaller than the grain size of the hygroscopic material. In order to illustrate the invention, it will be explained in more detail using various embodiments. It shows:
  • 1 shows a cross section through the edge of an insulating glass pane.
  • Fig. 2 in oblique view a prepared by incisions corner area of a profile bar according to FIG. 1 before and
  • Fig. 3 after bending;
  • 4 shows a longitudinal section through the still elongated profile according to FIG. 2 in the area of the incisions provided for corner formation;
  • 5 shows the view of the frame corner obtained by bending according to FIG. 3 and
  • Fig. 6 is a view of a frame and the location of the final joint;
  • 7 to 10 other profile shapes.

Den Rand einer Isolierglasscheibe im Querschnitt zeigt Fig 1. Zwei Scheiben 1 und 2 sind voneinander durch einen Rahmen 3 distanziert, der aus einem Leichtmetallprofil 20 gefertigt ist. Das aus Fig. 1 ersichtliche Profil 20 ist an sich bekannt und es ist durch Rollen gebildet. Der Wandabschnitt 4 des Profilstabes 20, der die Innenseite des Rahmens 3 bildet, weist eine Schlitzung 5 auf. Die Seitenflanken 6 sind stufenartig abgesetzt und verjüngen dadurch die Profilbreite im unteren Teil des Profilstabes 20 bzw. auf der Außenseite des Rahmens. Eine dauerelastische Dicht- und Klebemasse 7 liegt einerseits an den Flanken des Profilstabes 20, andererseits an den Glasscheiben 1 und 2 an und sorgt für einen funktionsgerechten Verbund dieser Teile. Der äußere Hohlraum, der von den Scheibenrändern und von der Außenseite des Profilrahmens begrenzt wird, ist mit einer ebenfalls dauerleastischen Dichtungsmasse 8 ausgefüllt. Allen Profilstäben 20, die für die Fertigung solcher Distanzhalterahmen 3 für Isolierglasscheiben verwendet werden, ist gemeinsam, daß sie als Hohlprofile ausgebildet sind. Die Höhlung 9 dieser Profilstäbe 20 nimmt ein hygroskopisches Material 19 auf, das über die Schlitzung 5 bzw. über eine eventuelle Perforierung in diesem Wandabschnitt 4 mit dem Innenraum 10 der Scheibe zusammenwirkt. Dieses hygroskopische Material wird von der einschlägigen Industrie in Form von kleinen Kügelchen angeboten. Der Durchmesser dieser Kügelchen liegt ca. bei 1 bis 2 mm.The edge of an insulating glass pane is shown in cross section in FIG. 1. Two panes 1 and 2 are spaced apart from one another by a frame 3 which is made from a light metal profile 20. The profile 20 shown in FIG. 1 is known per se and is formed by rolling. The wall section 4 of the profile bar 20, which forms the inside of the frame 3, has a slot 5. The side flanks 6 are stepped and thereby taper the profile width in the lower part of the profile bar 20 or on the outside of the frame. A permanently elastic sealant and adhesive 7 is on the one hand on the flanks of the profile rod 20, on the other hand on the glass panes 1 and 2 and ensures a functional bond of these parts. The outer cavity, which is delimited by the pane edges and by the outside of the profile frame, is filled with a likewise permanent sealing compound 8. All profile bars 20, which are used for the production of such spacer frames 3 for insulating glass panes, have in common that they are designed as hollow profiles. The cavity 9 of these profile bars 20 receives a hygroscopic material 19 which interacts with the interior 10 of the pane via the slit 5 or via a possible perforation in this wall section 4. This hygroscopic material is offered by the relevant industry in the form of small beads. The diameter of these beads is approximately 1 to 2 mm.

Für die Fertigung eines Rahmens 3, die ausschließlich durch winkeliges Biegen einzelner Profilabschnitte durchgeführt werden soll, wird vorerst ein Profilstab 20 von jener Länge gewählt, die dem Umfang des zu fertigenden Rahmens entspricht. Im Bereich der Biegestellen wird nun der Profilstab (Fig. 2) eingeschnitten, und zwar in jenem Wandabschnitt 4, der die Schlitzung 5 oder Perforierung aufweist. Mehrere parallele Einschnitte 11 verlaufen quer zur Längserstreckung des Profilstabes. Zwischen den einzelnen Einschnitten 11 verbleiben Stege 14. Die Breite b der einzelnen Einschnitte 11 entspricht etwa der Breite c der verbleibenden Stege 14. Die Einschnitt-Tiefe ist hier etwas größer gewählt, als es der Wandstärke s des Profilstabes 20 entsprechen würde. Die Tiefe t der Einschnitte 11 entspricht dabei zumindest der Wandstärke s dieses Wandabschnittes 4. Anschließend werden nun die durch solche Einschnitte 11 gebildeten Abschnitte A und B des Profilstabes gegeneinander gebogen (Pfeil 12) und dadurch eine Rahmenecke (Fig. 3) gebildet. Die Außenseite des Rahmens verformt sich zwar in diesem Eckbereich nicht unerheblich (Fig.5), wesentlich ist jedoch, daß die Seitenflanken 13 des Profils sich nicht nach außen wölben, sondern im wesentlichen eben bleiben, wie umfangreiche Versuche bescheinigt haben. Während des Biegevorganges können die Eckzoneri bzw. deren Flanken 13 auch fürsorglich in einem Werkstück geführt werden, damit verläßlich ein Aufwölben dieser Flanken im Eckbereich verhindert wird.For the manufacture of a frame 3, which is to be carried out exclusively by angularly bending individual profile sections, a profile rod 20 of the length that corresponds to the circumference of the frame to be manufactured is initially selected. The profile bar (FIG. 2) is now cut in the area of the bending points, specifically in that wall section 4 which has the slits 5 or perforations. Several parallel incisions 11 run transversely to the longitudinal extension of the profile bar. Crosspieces 14 remain between the individual incisions 11. The width b of the individual incisions 11 corresponds approximately to the width c of the remaining crosspieces 14. The incision depth is chosen to be somewhat greater than would correspond to the wall thickness s of the profile bar 20. The depth t of the incisions 11 corresponds at least to the wall thickness s of this wall section 4. Subsequently, the sections A and B of the profiled bar formed by such incisions 11 are bent against one another (arrow 12) and thereby a frame corner (FIG. 3) is formed. The outside of the frame deforms not inconsiderably in this corner area (FIG. 5), but it is essential that the side flanks 13 of the profile do not bulge outwards, but remain essentially flat, as extensive tests have confirmed. During the bending process, the corner zones or their flanks 13 can also be carefully guided in a workpiece so that these flanks are reliably prevented from bulging in the corner area.

Beim winkeligen Umbiegen (Pfeil 12) stoßen die beiden äußeren Begrenzungskanten 15 und 16 dieser Einschnitte aneinander (Fig.5) und klemmen zwischer: sich formschlüssig die Stege 14 ein, wobei ein im wesentlichen gleichmäßiger, in den Flanken der Ecke ebener Materialverlauf erreicht wird. Eine solche Rahmenecke mit der Lage der verformten Einschnitte zeigt in Seitenansicht die Fig. 5. Bei einer Profilbreite von ca. 12 mm wird die gesamte Breite B der Einschnitte (Fig.4) mit ca. 6 rrim gewählt. Die Einschnitte sind jeweils ca. 1 mm breit und die dazwischen verbleibenden Stege ca. 1,5 min. Dies ergibt in der Summe die Einschnittbreite B von 6 mm. Da diese Einschnitte sehr schmal sind, können die Profilleisten bereits vor dieser Bearbeitung oder aber auch nach dem Einschneiden mit dem erwähnten hygroskopischen Material gefüllt werden. Die Endseiten des Profils werden dann verstopft, so daß dieses kugelförmige Material nicht ausfließen kann. Die besondere Form der Einschnitte verhindert ebenfalls das Austreten dieses hygroskopischen Materials. Die Einschnitte werden bei einer abgelängten Profilleiste so gelegt, daß bei dem zu fertigenden Rahmen (Fig.6) die beiden Profilenden 17 und 18 in einem gerade verlaufenden Teil des zu fertigenden Rahmens liegen. Hier können diese Enden einfach vereinigt werden mit einer geeigneten Kupplung oder mit einem geeigneten Zwischenstück. Dadurch gelangt diese Stoßstelle in einen Bereich des Rahmens, der bei der Fertigung der Isolierglasscheibe fertigungstechnisch leicht zu beherrschen ist. Die früher so gefürchteten Schwachstellen bei diesen Isolierglasscheiben sind daher dank der Erfindung vollständig eliminiert.When bending at an angle (arrow 12), the two outer boundary edges 15 and 16 of these incisions abut one another (FIG. 5) and clamp between them: the webs 14 are positively inserted, an essentially uniform material profile being achieved in the flanks of the corner. Such a frame corner with the position of the deformed incisions is shown in a side view in FIG. 5. With a profile width of approximately 12 mm, the total width B of the incisions (FIG. 4) is chosen to be approximately 6 mm. The incisions are each about 1 mm wide and the webs remaining between them are about 1.5 minutes. This results in a total incision width B of 6 mm. Since these incisions are very narrow, the profile strips can be filled with the aforementioned hygroscopic material before this processing or after cutting. The end sides of the profile are then blocked so that this spherical material cannot flow out. The special shape of the incisions also prevents this hygroscopic material from escaping. The incisions are placed in a section bar cut to length so that in the frame to be manufactured (FIG. 6) the two profile ends 17 and 18 lie in a straight part of the frame to be manufactured. Here these ends can easily be combined with a suitable coupling or with a suitable adapter. As a result, this joint reaches an area of the frame that is easy to control in terms of production technology in the manufacture of the insulating glass pane. The previously so feared weak points in these insulating glass panes are therefore completely eliminated thanks to the invention.

Wenn die Erfindung hier anhand ein und desselben Profilquerschnittes näher erläutert worden ist, so muß hier hoch festgehalten werden, daß sie nicht auf solche Profile beschränkt ist. Die Erfindung schließt auch andere Profilformen ein, wie sie für die Herstellung bei solchen Distanzhalterahmen gebräuchlich sind und die ebenfalls Hohlkammern für die Aufnahme von hygroskopischem Material besitzen. Solche Profile sind in den Fig. bis 10 gezeigt, wobei die Fig. 7 das vorbereitete und Fig. das abgekantete oder umgebogene Profilstück zeigen, und dieses Profil einen einfachen rechteckigen Querschnitt aufweist. Dieses Profil ist durch Rollen gebildet. Das Ausgangsmaterial für dieses Profil war ein flacher Streifen, der durch entsprechende Umlenkrollen zu diesem geschlossenen Kastenprofil gefaltet wurde. Die Fig. 9 zeigt ein gezogenes Profil mit einer Längsperforierung 21, ebenfalls für den Biegevorgang vorbereitet und Fig. 10 das abgekantete bzw. umgebogene Profil Solche Profile bestehen in der Regel aus Leichtmetall-Legierungen. Es ist jedoch die Erfindung nicht auf solche Leitmetaltprofite beschränkt, sie schließt solche Profile ein, die beispielsweise aus Staht gezogen oder gerollt sind. In alten den aufgezeigten Fällen ergibt sich eine exakte einwandfreie innere Stoßkante, die seitlichen Flanken verbleiben im wesentlichen eben, was für diese Rahmenprofile ja außerordentlich wichtig ist und zwar aus Gründen, die schon einleitend dargelegt wurden. Die jeweils äußere Begrenzungsseite wird zwar im Eckbereich nicht unerheblich verformt, dies beeinflußt jedoch die Qualität des Rahmens nicht, im Gegenteil, durch diese Verformung wird dann im äußeren Eckbereich der Scheibe relativ viel Raum ausgespart, der dann zur Gänze mit Dichtungsmasse ausgefüllt werden kann, so daß gerade in den Bereichen erhöhter Gefährdung das Dichtungsmaterial angehäuft ist.If the invention has been explained in more detail with reference to one and the same profile cross section, it must be stated here that it is not restricted to such profiles. The invention also includes other profile shapes, such as are customary for the production of such spacer frames and which also have hollow chambers for holding hygroscopic material. Such profiles are shown in FIGS. 1 to 10, FIG. 7 showing the prepared and FIG. 7 the bent or bent profile piece, and this profile has a simple rectangular cross section. This profile is formed by roles. The starting material for this profile was a flat strip, which was folded into this closed box profile by means of appropriate deflection rollers. FIG. 9 shows a drawn profile with a longitudinal perforation 21, also prepared for the bending process, and FIG. 10 shows the bent or bent profile. Such profiles generally consist of light metal alloys. However, the invention is not limited to such lead metal profits, it includes those profiles which are drawn or rolled, for example, from steel. In the old cases shown, there is an exact, flawless inner butt edge, the side flanks remain essentially flat, which is extremely important for these frame profiles, for reasons that have already been explained in the introduction. The outer boundary side is deformed not insignificantly in the corner area, but this does not affect the quality of the frame, on the contrary, this deformation then saves a lot of space in the outer corner area of the pane, which can then be completely filled with sealant, so that the sealing material has accumulated in the areas of increased risk.

Claims (5)

1. Separator frame, for insulation glass panes, formed from a hollow section bar (20) whose cavity (9) contains granular hygroscopic material and whose wall portion forming its inner side has a slit (5) or perforation extending in the longitudinal direction of the hollow section bar, and whose corner regions are notched and are formed by bending, characterised in that in the as yet unbent condition of the hollow section (20) there are provided for the purpose of forming a frame corner, a plurality of grooves (11) which are situated directly side-by-side one another and which have webs (14) between them, and the depth (t) of the grooves (11) only has an extent which corresponds approximately to the thickness (s) of the wall portion (4), and the width (d) of these grooves is the same as or smaller than the grain size of the hygroscopic material.
2. Separator frame according to Claim 1, characterised in that the width (b) of the grooves (111 and the width (c) of the webs (14) situated between them are approximately the same (Figure 6).
3. Separator frame according to Claim 1 or Claim 2, characterised in that three grooves (11) are provided (Figure 6).
4. Separator frame according to one of Claims 1 to 3, characterised in that the grooves (11) are about 1 to 1,5 mm wide.
5. Separator frame according to one of Claims 1 to 4, characterised in that the hollow section bar (20) has side flanks which are gradually stepped in per se known manner and which narrow the section width in the outer portion (Figure 1).
EP19790810004 1978-02-08 1979-01-22 Spacer frame for multiple glazed unit Expired EP0003715B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0086378A AT366771B (en) 1978-02-08 1978-02-08 METHOD FOR PRODUCING A DISTANCE HOLDER FOR INSULATING GLASS DISCS
AT863/78 1978-02-08

Publications (2)

Publication Number Publication Date
EP0003715A1 EP0003715A1 (en) 1979-08-22
EP0003715B1 true EP0003715B1 (en) 1981-11-04

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EP19790810004 Expired EP0003715B1 (en) 1978-02-08 1979-01-22 Spacer frame for multiple glazed unit

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EP (1) EP0003715B1 (en)
AT (1) AT366771B (en)
DE (1) DE2961178D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT368751B (en) * 1977-10-15 1982-11-10 Erbsloeh Julius & August SPACER FOR MULTIPLE-DISC INSULATING GLASS AND METHOD AND DEVICE FOR ITS PRODUCTION
DE3325718A1 (en) * 1983-07-16 1985-01-31 Helmut Lingemann GmbH & Co, 5600 Wuppertal BENDED CORNER OF A SPACER FRAME, INSULATING GLAZING AND METHOD FOR THE PRODUCTION THEREOF
DE3346671C1 (en) * 1983-12-23 1985-07-04 Karl 7531 Neuhausen Lenhardt Process for forming the corners of spacer frames for edge-glued insulating glass panes
SE453108B (en) * 1984-08-10 1988-01-11 Lars Eriksson SPACES FOR THE CREATION OF A CLOSED SPACE BETWEEN TWO GLASS SHEETS
GB2237051A (en) * 1989-10-21 1991-04-24 Gary Daynes Square cornered spacer tube & method of making it
DE4231683A1 (en) * 1992-03-31 1993-10-07 Lenhardt Maschinenbau Method and device for producing spacer frames for use between the glass sheets of insulating glass panes
US5295292A (en) * 1992-08-13 1994-03-22 Glass Equipment Development, Inc. Method of making a spacer frame assembly
ES2166522T3 (en) * 1997-05-01 2002-04-16 Saint Gobain Vitrage Suisse Ag PROCEDURE FOR THE MANUFACTURE OF FOLDED HOLLOW PROFILE RULES.
US6989188B2 (en) 2003-11-07 2006-01-24 Technoform Caprano Und Brunnhofer Gmbh & Co. Kd Spacer profiles for double glazings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380145A (en) * 1964-01-08 1968-04-30 Pittsburgh Plate Glass Co Method of fabricating multiple glazing unit
US3540118A (en) * 1968-02-20 1970-11-17 Ppg Industries Inc Method of framing a multiple glazed unit
CA1006052A (en) * 1975-11-06 1977-03-01 Gaetan Y. Lacombe Spacer for glass sealed unit and interlock member therefor

Also Published As

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AT366771B (en) 1982-05-10
EP0003715A1 (en) 1979-08-22
DE2961178D1 (en) 1982-01-14
ATA86378A (en) 1981-09-15

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