EP0446778A2 - Roller shutter slat of stable form and its method of fabrication - Google Patents

Roller shutter slat of stable form and its method of fabrication Download PDF

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Publication number
EP0446778A2
EP0446778A2 EP91103444A EP91103444A EP0446778A2 EP 0446778 A2 EP0446778 A2 EP 0446778A2 EP 91103444 A EP91103444 A EP 91103444A EP 91103444 A EP91103444 A EP 91103444A EP 0446778 A2 EP0446778 A2 EP 0446778A2
Authority
EP
European Patent Office
Prior art keywords
aluminum strip
roller shutter
wall
hollow body
connection
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.)
Granted
Application number
EP91103444A
Other languages
German (de)
French (fr)
Other versions
EP0446778B1 (en
EP0446778A3 (en
Inventor
Helmuth Dipl.-Ing. Schneider
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.)
Vaw Aluminium AG
Original Assignee
Vereinigte Aluminium Werke AG
Vaw Aluminium AG
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Filing date
Publication date
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Application filed by Vereinigte Aluminium Werke AG, Vaw Aluminium AG filed Critical Vereinigte Aluminium Werke AG
Priority to AT91103444T priority Critical patent/ATE92581T1/en
Publication of EP0446778A2 publication Critical patent/EP0446778A2/en
Publication of EP0446778A3 publication Critical patent/EP0446778A3/en
Application granted granted Critical
Publication of EP0446778B1 publication Critical patent/EP0446778B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B9/165—Roller shutters with closing members formed of slats or the like with slats disappearing in each other; with slats the distance between which can be altered
    • 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
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • 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
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B2009/1505—Slat details
    • E06B2009/1527—Transparent slats or transparent sections in slats
    • 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
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B2009/1533—Slat connections
    • E06B2009/1538—Slats directly connected
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y10T428/1393—Multilayer [continuous layer]

Definitions

  • the invention relates to a dimensionally stabilized roller shutter rod, which consists of an aluminum strip roll-formed into a hollow body profile, and a method for producing such a dimensionally stabilized roller shutter rod.
  • a dimensionally stabilized roller shutter rod which has a reinforcing part in the central axis of the hollow body profile.
  • This reinforcement part consists of a PVC insert body which can be additionally reinforced by a metal core during the production by means of an extrusion process.
  • the finished roller shutter rod made of plastic shows disadvantages when weathering, especially when exposed to sunlight and low temperatures. Under these conditions, the plastic may become brittle and, after prolonged exposure, the outer layer may become discolored. In addition, the manufacturing method is very time consuming and expensive.
  • a roller shutter rod is known from German utility model G 8907445, which is roll-formed with the formation of connection areas and walls from an aluminum band coated with plastic.
  • the coatings of the walls are formed with different layer weights, so that the weight distribution is asymmetrical damping of the vibrations of the hollow body profile and thus a reduction in the noise emission can be achieved.
  • roller shutter slat is described in European patent application EP 03 65 908, which is roll-formed from a aluminum strip coated on one side to form a hollow body profile, a double-layer plastic layer being formed in the area of the connection areas, which ensures that the sound emitted by the roller shutter is damped arises because the acoustic decoupling of the aluminum surfaces prevents sound transmission between them.
  • the invention has for its object to provide a dimensionally stabilized roller shutter bar, the bending stiffness and durability are improved without the sound-absorbing properties are reduced. that the object of the invention is also to provide a manufacturing process for such a dimensionally stabilized roller shutter bar with high flexural strength and durability.
  • the durability of the form-stabilized roller shutter rod results from the fact that it is made entirely of durable aluminum at the places exposed to the weather.
  • the improved bending stiffness stems from the fact that in the area of the at least two aluminum strip layers it is no longer possible to shift them relative to one another, in particular when subjected to torsional stress. This has a particular effect on temperature stresses, such as those that occur when the roller shutter rod is exposed to direct sunlight.
  • the twists occurring in known roller shutter slats, in which the ends of the hollow body profile running in guides rotate about the longitudinal central axis, are avoided in the roller shutter slat according to the invention.
  • connection of the at least two aluminum strip layers is formed by a plastic layer which is designed as a hot-melt adhesive layer in the region of the contact point.
  • the material connection in the area of the adhesive layer creates the desired non-positive connection.
  • the hot-melt adhesive layer is applied to edge areas of the aluminum strip which, after roll forming, face one another in the double-layered strip areas.
  • the non-positive connection can also be formed by a welded connection.
  • non-positive connection of the at least two aluminum strip layers is formed by a rivet, screw or clinch connection, a good and, if desired, detachable mechanical fixation can be achieved.
  • connection areas are preferably provided in one of the connection areas, both connection areas also being able to be fixed accordingly.
  • the at least two aluminum strip layers are formed by the inner wall and the outer wall, which are brought together at a contact point to form a non-positive connection. It is thereby achieved that not only the surfaces in the connection area are mechanically fixed, but the central area of the hollow body profile is solidified at at least one point to increase the bending stiffness. This also changes the resonance behavior of the roller shutter slat and thus improves sound absorption.
  • the fixing between the inner wall and outer wall is preferably achieved by deforming the inner wall in the direction of the outer wall, so that there is a smaller bending radius in the area of the contact point with respect to the inner wall than in the case of the outer wall.
  • the form-stabilized roller shutter slat according to the invention is preferably roll-formed from aluminum strip material which has a thickness between 0.15 and 0.8 mm.
  • the method according to the invention for producing a dimensionally stabilized roller shutter rod includes the method steps that an aluminum band coated on one side with a plastic is roll-formed to form a double-layer connection area and an inner wall and an outer wall to form a hollow body profile, and that a non-positive connection between at least two aluminum band layers is formed.
  • the plastic preferably consists of an adhesive medium, the aluminum strip layers formed into the hollow body profile being held under pressure in at least one of the two connection regions until a non-positive connection is produced.
  • the plastic layer consists of a hot-melt adhesive and the aluminum strip formed into the hollow body profile is glued or welded after heating in the area of the double-layer connection areas, the material connection of the adhesive connection results in a particularly high bending stiffness.
  • roller shutter slat according to the invention, consisting of the hollow body profile 1 and two connecting ends 2, 3 with a corresponding hook and eye area 4, 5.
  • the roller shutter rod has been produced by roll forming from an aluminum strip 6 which is coated with an adhesive medium 7 on the entire inside of the hollow body profile and also between the connection ends.
  • the adhesive medium 7 can be carried out by extrusion coating, by applying a liquid or by lamination using a polymer film. In roll forming, the adhesive medium is pressed against one another at the connection ends, thereby producing an intimate contact between the adhesive medium and the aluminum strip. By exposure to heat, this contact can be formed into a non-positive connection that can withstand high mechanical loads.
  • a polyethylene copolymer has proven itself for coating the aluminum strips. It is advantageous if the copolymer is provided with sound-absorbing pigments which are either applied to the aluminum strip in the liquid phase during extrusion or are already present in the finished laminating medium. The soundproofing properties are greatly improved by the full-surface coating of the hollow profile interior. The coating can also be done with a polypropylene film.
  • the adhesive medium is limited to the contact points 8,9,10 at the connection ends.
  • This variant represents a simplified embodiment compared to the full-area coating shown in FIG. 1, but which shows equivalent results in terms of dimensional stability.
  • a mechanical connection is shown at the connection ends of the roller shutter bar.
  • the exemplary embodiment are in the hook area 11 and Several rivets 11a-d and 12a-e are shown in the eyelet region 12.
  • FIG. 4 now shows a non-positive connection in the form of an adhesive bond 15 between the outer wall 13 and the inner wall 14 of the roller shutter rod.
  • the aluminum strip in the central region of the inner wall 14 was deformed inwards to such an extent that it forms a contact point with the outer wall 13.
  • a previously applied adhesion promoter can bring about the positive locking.
  • the brackets can follow the points at one or more points on the inner and outer walls or also continuously in the form of a line in the direction of the longitudinal center axis.
  • adhesive bonds 16, 17, 17 a are also provided at the connection ends. All bonds can be made in cold or warm condition. For higher strength requirements, however, it has proven to be advantageous to non-positively connect the aluminum strip regions provided with an adhesive medium under the action of heat. When the adhesive media are heated, the temperatures are above approximately 100 ° C. and preferably in the range from 150 to 200 ° C. The hot-melt adhesive is activated and the strength of the hollow body profile corresponds to that of a profile of the same dimension that is foamed with PU foam.
  • the heating can be carried out by commercially available means, e.g. by infrared or induction heating elements which are attached at a suitable point during roll forming of the roller shutter rod according to the invention.
  • the finished product must then be specifically cooled, for example by blowing with air.
  • roller shutter slats according to the invention can withstand solar radiation at temperatures of up to 80 ° C. All suitable resins, acrylates and hot melt adhesives such as polyamides can be used as adhesives between plastic and metal.
  • contact points at various points of the hollow body profile are also possible in the central region.
  • the contact points are produced in that the aluminum strip, which originally runs in parallel, is deformed between the connection ends of the roller shutter rod in the central region of the hollow body profile.
  • the inner wall 14 of the hollow body profile 18 is preferably deformed such that a contact point 15 with the outer wall 13 is created.
  • the outer wall 13 e.g. are deformed in a bead shape, the bead base forming a contact point with the inner wall 14 of the hollow body profile 18.
  • both walls 13, 14 can also be deformed at the same time if this is expedient for reasons of strength or to increase stability.
  • the non-positive connection that can be achieved with the adhesive bond in the cold or warm state can also be achieved by other thermal processes such as welding or soldering or also by cold connection processes such as pressure or friction welding.
  • connection processes such as rivets, screws, clipping and other pressure forming processes can also be used. It is crucial that a frictional, temperature-stable connection is created, which also withstands an oscillating load, such as can occur under the influence of wind forces.
  • plastics and in particular hot-melt adhesive can be used in the production of the non-positive connection. These are welded under the influence of heat (plastics) or glued (hot melt adhesive).
  • hot melt adhesive In addition to the copolymers mentioned in the description, such as polyethylene, polypropylene film can also be used.

Landscapes

  • Structural Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Materials For Medical Uses (AREA)
  • Stringed Musical Instruments (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Blinds (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

The invention refers to a roller shutter rod of stable shape, consisting of an aluminum strip plastic-coated on one side at least in part, and roll-formed into a hollow section 18 with the coated side inwards, the hollow section featuring upper and lower connecting areas with double-layer aluminum strip and an inside wall 14 as well as an outside wall 13, said hollow section featuring for the increase of the longitudinal stiffness and durability of the roller shutter rod at least one contact point 15, at which at least two aluminum strip layers are bonded with one another.

Description

Die Erfindung betrifft einen formstabilisierten Rolladenstab, der aus einem zu einem Hohlkörperprofil rollgeformtem Aluminiumband besteht und ein Verfahren zur Herstellung eines solchen formstabilisierten Rolladenstabes.The invention relates to a dimensionally stabilized roller shutter rod, which consists of an aluminum strip roll-formed into a hollow body profile, and a method for producing such a dimensionally stabilized roller shutter rod.

Aus der EP 00 75768 ist ein formstabilisierter Rolladenstab bekannt, der in der Mittelachse des Hohlkörperprofils ein Verstärkungsteil aufweist. Dieses Verstärkungsteil besteht aus einem PVC-Einsatzkörper der bei der Herstellung mittels Strangpressverfahren noch zusätzlich durch einen Metallkern verstärkt werden kann. Der fertige Rolladenstab aus Kunststoff zeigt Nachteile bei der Bewitterung, insbesondere bei Sonnenbestrahlung und tiefen Temperaturen. Unter diesen Bedingungen kann es zu Versprödungen des Kunststoffes und nach längerer Einwirkung auch zu einer Entfärbung der Außenschicht kommen. Darüber hinaus ist die Fertigungsweise sehr zeitaufwendig und teuer.From EP 00 75768 a dimensionally stabilized roller shutter rod is known which has a reinforcing part in the central axis of the hollow body profile. This reinforcement part consists of a PVC insert body which can be additionally reinforced by a metal core during the production by means of an extrusion process. The finished roller shutter rod made of plastic shows disadvantages when weathering, especially when exposed to sunlight and low temperatures. Under these conditions, the plastic may become brittle and, after prolonged exposure, the outer layer may become discolored. In addition, the manufacturing method is very time consuming and expensive.

Aus dem deutschen Gebrauchsmuster G 8907445 ist ein Rolladenstab bekannt, der unter der Ausbildung von Anschlußbereichen und Wandungen aus einem mit Kunststoff beschichteten Aluminiumband rollgeformt ist. Bei diesem bekannten Rolladenstab sind die Beschichtungen der Wandungen mit unterschiedlichen Schichtgewichten ausgebildet, so daß durch asymmetrische Gewichtsverteilung eine Dämpfung der Schwingungen des Hohlkörperprofils und somit eine Verminderung der Schallemission erreicht werden kann.A roller shutter rod is known from German utility model G 8907445, which is roll-formed with the formation of connection areas and walls from an aluminum band coated with plastic. In this known roller shutter bar, the coatings of the walls are formed with different layer weights, so that the weight distribution is asymmetrical damping of the vibrations of the hollow body profile and thus a reduction in the noise emission can be achieved.

Ein anderer Rolladenstab ist in der europäischen Patentanmeldung EP 03 65 908 beschrieben, der aus einem einseitig beschichteten Aluminiumband zu einem Hohlkörperprofil rollgeformt wird, wobei im Bereich der Anschlußbereiche eine doppellagig ausgeführte Kunststoffschicht gebildet ist, die dafür sorgt, daß eine Dämpfung des vom Rolladen abgestrahlten Schalles entsteht, da durch die akustische Entkopplung der Aluminiumflächen die Schallübertragung zwischen denselben vermieden wird.Another roller shutter slat is described in European patent application EP 03 65 908, which is roll-formed from a aluminum strip coated on one side to form a hollow body profile, a double-layer plastic layer being formed in the area of the connection areas, which ensures that the sound emitted by the roller shutter is damped arises because the acoustic decoupling of the aluminum surfaces prevents sound transmission between them.

Der Erfindung liegt die Aufgabe zugrunde, einen formstabilisierten Rolladenstab zu schaffen, dessen Biegesteifigkeit und Haltbarkeit verbessert werden, ohne daß die schalldämpfenden Eigenschaften herabgesetzt werden. daß Aufgabe der Erfindung ist auch die Angabe eines Herstellungsverfahrens für einen solchen formstabilisierten Rolladenstab mit hoher Biegesteifigkeit und Haltbarkeit.The invention has for its object to provide a dimensionally stabilized roller shutter bar, the bending stiffness and durability are improved without the sound-absorbing properties are reduced. that the object of the invention is also to provide a manufacturing process for such a dimensionally stabilized roller shutter bar with high flexural strength and durability.

Die Aufgabe wird bei einem formstabilisierten Rolladenstab der eingangs genannten Art durch folgende Merkmale gelöst:

  • das Aluminiumband ist einseitig mindestens teilweise mit Kunststoff beschichtet,
  • die beschichtete Seite des Aluminiumbandes bildet die Innenseite des Hohlkörperprofils,
  • das Hohlkörperprofil weist obere und untere Anschlußbereiche auf, in denen das Aluminiumband doppellagig geführt ist,
  • das Hohlkörperprofil weist eine Innenwandung und eine Außenwandung auf,
  • das Hohlkörperprofil weist mindestens eine Kontaktstelle auf, an der mindestens zwei Aluminiumbandlagen kraftschlüssig miteinander verbunden sind.
The task is solved in a dimensionally stabilized roller shutter slat of the type mentioned at the outset by the following features:
  • the aluminum strip is at least partially coated with plastic on one side,
  • the coated side of the aluminum strip forms the inside of the hollow body profile,
  • the hollow body profile has upper and lower connection areas in which the aluminum strip is guided in two layers,
  • the hollow body profile has an inner wall and an outer wall,
  • the hollow body profile has at least one contact point at which at least two aluminum strip layers are non-positively connected to one another.

Die Haltbarkeit des formstabilisierten Rolladenstabes ergibt sich dadurch, daß er an den der Witterung ausgesetzten Stellen völlig aus beständigem Aluminium besteht. Die verbesserte Biegesteifigkeit rührt daher, daß im Bereich der mindestens zwei Aluminiumbandlagen eine Verschiebung derselben gegeneinander, insbesondere bei Drehbeanspruchung, nicht mehr möglich ist. Dies wirkt sich besonders bei Temperaturbeanspruchungen aus, wie sie bei direkter Sonnenbestrahlung des Rolladenstabes auftreten. Die bei bekannten Rolladenstäben auftretenden Verwindungen, bei denen sich die in Führungen laufenden Enden des Hohlkörperprofils um die Längs- Mittelachse drehen, werden beim erfindungsgemäßen Rolladenstab vermieden.The durability of the form-stabilized roller shutter rod results from the fact that it is made entirely of durable aluminum at the places exposed to the weather. The improved bending stiffness stems from the fact that in the area of the at least two aluminum strip layers it is no longer possible to shift them relative to one another, in particular when subjected to torsional stress. This has a particular effect on temperature stresses, such as those that occur when the roller shutter rod is exposed to direct sunlight. The twists occurring in known roller shutter slats, in which the ends of the hollow body profile running in guides rotate about the longitudinal central axis, are avoided in the roller shutter slat according to the invention.

In einem bevorzugten Ausführungsbeispiel der Erfindung ist die Verbindung der mindestens zwei Aluminiumbandlagen durch eine im Bereich der Kontaktstelle als Schmelzklebeschicht ausgebildete Kunststoffschicht ausgebildet. Durch den Stoffschluß im Bereich der Klebeschicht entsteht die gewünschte kraftschlüssige Verbindung. Hierzu reicht es aus, wenn die Schmelzklebeschicht auf Randbereiche des Aluminiumbandes aufgetragen wird, die nach dem Rollformen in den doppellagig geformten Bandbereichen einander zugewandt sind.In a preferred exemplary embodiment of the invention, the connection of the at least two aluminum strip layers is formed by a plastic layer which is designed as a hot-melt adhesive layer in the region of the contact point. The material connection in the area of the adhesive layer creates the desired non-positive connection. For this purpose, it is sufficient if the hot-melt adhesive layer is applied to edge areas of the aluminum strip which, after roll forming, face one another in the double-layered strip areas.

Bei weniger beanspruchten Teilen reicht auch eine Verklebung mittels einer Kunststoffolie, die entweder auf dem Aluminiumband vor der Rollformung aufgebracht oder separat bei der Rollformung vor oder hinter dem Rollformer in den Verformungsvorgang eingeführt wird. Soll die Verklebung auf die Randbereiche beschränkt werden, reicht es, wenn ein entsprechend schmales Kunststoffband mit der Schmelzklebeschicht an beiden Seiten des Rolladenstabes einläuft.In the case of less stressed parts, it is also sufficient to use a plastic film which is either applied to the aluminum strip before the roll forming or is introduced separately during the roll forming before or after the roll former in the forming process. If the gluing is to be limited to the edge areas, it is sufficient if a correspondingly narrow plastic tape with the Hot melt adhesive layer runs in on both sides of the roller shutter rod.

Alternativ oder ergänzend zur Schmelzklebeschicht kann die kraftschlüssige Verbindung auch durch eine Schweißverbindung gebildet sein.As an alternative or in addition to the hot-melt adhesive layer, the non-positive connection can also be formed by a welded connection.

Wenn die kraftschlüssige Verbindung der mindestens zwei Aluminiumbandlagen durch eine Niet-, Schraub- oder Clintschverbindung gebildet ist, läßt sich eine gute und wenn gewünscht auch lösbare mechanische Fixierung erreichen.If the non-positive connection of the at least two aluminum strip layers is formed by a rivet, screw or clinch connection, a good and, if desired, detachable mechanical fixation can be achieved.

Vorzugsweise ist die kraftschlüssige Verbindung in einem der Anschlußbereiche vorgesehen, wobei auch beide Anschlußbereiche entsprechend fixiert werden können.The non-positive connection is preferably provided in one of the connection areas, both connection areas also being able to be fixed accordingly.

In einer anderen Ausführungsform der Erfindung sind die mindestens zwei Aluminiumbandlagen durch die Innenwandung und die Außenwandung gebildet, die an einer Kontaktstelle zu einer kraftschlüssigen Verbindung zusammengeführt sind. Dadurch wird erreicht, daß nicht nur die Flächen im Anschlußbereich mechanisch fixiert sind, sondern der Mittelbereich des Hohlkörperprofils an mindestens einem Punkt zur Erhöhung der Biegesteifigkeit verfestigt ist. Hierdurch wird auch das Resonanzverhalten des Rolladenstabes verändert und damit die Schalldämpfung verbessert.In another embodiment of the invention, the at least two aluminum strip layers are formed by the inner wall and the outer wall, which are brought together at a contact point to form a non-positive connection. It is thereby achieved that not only the surfaces in the connection area are mechanically fixed, but the central area of the hollow body profile is solidified at at least one point to increase the bending stiffness. This also changes the resonance behavior of the roller shutter slat and thus improves sound absorption.

Bevorzugt wird die zwischen Innenwandung und Außenwandung erfolgende Fixierung dadurch erreicht, daß die Innenwandung in Richtung auf die Außenwandung verformt wird, so daß sich im Bereich der Kontaktstelle in Bezug auf die Innenwandung ein geringerer Biegeradius ergibt als bei der Außenwandung.The fixing between the inner wall and outer wall is preferably achieved by deforming the inner wall in the direction of the outer wall, so that there is a smaller bending radius in the area of the contact point with respect to the inner wall than in the case of the outer wall.

Der formstabilisierte Rolladenstab gemäß der Erfindung wird vorzugsweise aus Aluminiumbandmaterial rollgeformt, welches eine Dicke zwischen 0,15 und 0,8 mm aufweist.The form-stabilized roller shutter slat according to the invention is preferably roll-formed from aluminum strip material which has a thickness between 0.15 and 0.8 mm.

Das erfindungsgemäße Verfahren zur Herstellung eines formstabilisierten Rolladenstabes beinhaltet zur Lösung der zugrundeliegenden Aufgabe die Verfahrensschritte, daß ein einseitig mit einem Kunststoff beschichtetes Aluminiumband unter Ausbildung von doppellagigen Anschlußbereichen und einer Innenwandung sowie einer Außenwandung zu einem Hohlkörperprofil rollgeformt wird und daß zwischen mindestens zwei Aluminiumbandlagen eine kraftschlüssige Verbindung gebildet wird.To achieve the underlying object, the method according to the invention for producing a dimensionally stabilized roller shutter rod includes the method steps that an aluminum band coated on one side with a plastic is roll-formed to form a double-layer connection area and an inner wall and an outer wall to form a hollow body profile, and that a non-positive connection between at least two aluminum band layers is formed.

Ergänzend zum Verfahrensschritt der Formung des Hohlkörperprofils ist also erfindungsgemäß vorgesehen, daß dort, wo mindestens zwei Aluminiumbandlagen benachbart sind, diese durch eine kraftschlüssige Verbindung gegeneinander fixiert werden, so daß keine Bewegung der Bandlagen im Bereich ihrer Kontaktstelle mehr möglich ist. Hierdurch ergibt sich die gewünschte Verfestigung des Rolladenstabes.In addition to the process step of shaping the hollow body profile, it is provided according to the invention that where at least two aluminum strip layers are adjacent, they are fixed to one another by a force-locking connection, so that the strip layers can no longer move in the area of their contact point. This results in the desired solidification of the roller shutter bar.

Vorzugsweise besteht der Kunststoff aus einem Haftmedium, wobei die zum Hohlkörperprofil geformten Aluminiumbandlagen in zumindest einem der beiden Anschlußbereiche unter Druck gehalten werden, bis eine kraftschlüssige Verbindung entsteht.The plastic preferably consists of an adhesive medium, the aluminum strip layers formed into the hollow body profile being held under pressure in at least one of the two connection regions until a non-positive connection is produced.

Wenn die Kunststoffschicht aus einem Schmelzkleber besteht und das zum Hohlkörperprofil geformte Aluminiumband nach einer Erwärmung im Bereich der doppellagigen Anschlußbereiche verklebt oder verschweißt wird, ergibt sich durch den Stoffschluß der Klebeverbindung eine besonders hohe Biegesteifigkeit.If the plastic layer consists of a hot-melt adhesive and the aluminum strip formed into the hollow body profile is glued or welded after heating in the area of the double-layer connection areas, the material connection of the adhesive connection results in a particularly high bending stiffness.

Eine praktische Verfahrensweise ergibt sich dadurch, daß die Verklebung bzw. Verschweißung im Anschluß an die Rollformung des Hohlkorperprofils erfolgt. Es kann aber auch vorgesehen sein, daß die Erwärmung des Schmelzklebers während der Rollformung durch die Aufheizung des Aluminiumbandes erfolgt.A practical procedure results from the fact that the gluing or welding takes place after the roll forming of the hollow body profile. However, it can also be provided that the hot-melt adhesive is heated during roll forming by heating the aluminum strip.

Eine wichtige Verfahrensvariante ist darin zu sehen, daß die Innenwandung in Richtung der Außenwandung zur Ausbildung einer Kontaktstelle verformt wird.An important process variant can be seen in the fact that the inner wall is deformed in the direction of the outer wall to form a contact point.

Im folgenden wird die Erfindung anhand mehrerer Ausführungsbeispiele erläutert.The invention is explained below using several exemplary embodiments.

Es zeigen:Show it:

Fig. 1Fig. 1
Rolladenstab mit Haftmedium im Hohlprofil-Innenraum vollflächig beschichtet;Roller shutter bar fully coated with adhesive medium in the hollow profile interior;
Fig. 2Fig. 2
Rolladenstab mit Haftmedium im Haken- und Ösenbereich zwischen Innen- und Außenwandung des Aluminiumbandes beschichtet;Roller shutter rod coated with adhesive in the hook and eye area between the inner and outer walls of the aluminum strip;
Fig. 3Fig. 3
Rolladenstab mit mechanischer Verbindung im Haken- und Ösenbereich;Roller shutter bar with mechanical connection in the hook and eye area;
Fig. 4Fig. 4
Rolladenstab mit Klebverbindung zwischen Innen- und Außenwandung des Hohlkörperprofils.Roller shutter bar with adhesive connection between the inner and outer walls of the hollow body profile.

In Figur 1 ist der erfindungsgemäße Rolladenstab, bestehend aus dem Hohkörperprofil 1 und zwei Anschlußenden 2,3 mit entsprehendem Haken- und Ösenbereich 4,5 dargestellt. Der Rolladenstab ist durch Rollformen aus einem Aluminiumband 6 hergestellt worden, das auf der gesamten Innenseite des Hohlkörperprofils und auch zwischen den Anschlußenden mit einem Haftmedium 7 beschichtet ist.1 shows the roller shutter slat according to the invention, consisting of the hollow body profile 1 and two connecting ends 2, 3 with a corresponding hook and eye area 4, 5. The roller shutter rod has been produced by roll forming from an aluminum strip 6 which is coated with an adhesive medium 7 on the entire inside of the hollow body profile and also between the connection ends.

Das Haftmedium 7 kann durch Extrusionsbeschichtung, durch Auftragen einer Flüssigkeit oder durch Kaschieren mittels eines Polymer-Films erfolgen. Beim Rollformen wird das Haftmedium an den Anschlußenden aufeinander gepreßt und dadurch ein inniger Kontakt zwischen dem Haftmedium und dem Aluminiumband hergestellt. Durch Hitze-Einwirkung kann dieser Kontakt zu einer kraftschlüssigen Verbindung ausgebildet werden, die hohen mechanischen Belastungen standhält.The adhesive medium 7 can be carried out by extrusion coating, by applying a liquid or by lamination using a polymer film. In roll forming, the adhesive medium is pressed against one another at the connection ends, thereby producing an intimate contact between the adhesive medium and the aluminum strip. By exposure to heat, this contact can be formed into a non-positive connection that can withstand high mechanical loads.

Zur Beschichtung der Aluminiumbänder hat sich ein Polyäthylen-Copolymer bewährt. Es ist vorteilhaft, wenn das Copolymer mit schallschluckenden Pigmenten versehen wird, die entweder in der flüssigen Phase beim Extrudieren auf das Aluminiumband aufgebracht werden oder bereits im fertigen Kaschiermedium enthalten sind. Durch die vollflächige Beschichtung des Hohlprofilinnenraums werden die schalldämpfenden Eigenschaften sehr verbessert. Die Beschichtung kann auch mit einem Polypropylen-Film erfolgen.A polyethylene copolymer has proven itself for coating the aluminum strips. It is advantageous if the copolymer is provided with sound-absorbing pigments which are either applied to the aluminum strip in the liquid phase during extrusion or are already present in the finished laminating medium. The soundproofing properties are greatly improved by the full-surface coating of the hollow profile interior. The coating can also be done with a polypropylene film.

In Figur 2 ist das Haftmedium auf die Kontaktstellen 8,9,10 an den Anschlußenden beschränkt. Diese Variante stellt eine im Vergleich zu der in Fig. 1 dargestellten vollflächigen Beschichtung vereinfachte Ausführungsform dar, die aber hinsichtlich der Formstabilität gleichwertige Ergebnisse zeigt.In Figure 2, the adhesive medium is limited to the contact points 8,9,10 at the connection ends. This variant represents a simplified embodiment compared to the full-area coating shown in FIG. 1, but which shows equivalent results in terms of dimensional stability.

Der Vorteil dieser Lösung besteht in der vereinfachten Herstellung durch Verwendung entsprechend schmalerer kunststoffbeschichteter Bereiche an den Kontaktstellen.The advantage of this solution is the simplified production by using correspondingly narrower plastic-coated areas at the contact points.

In Figur 3 ist eine mechanische Verbindung an den Anschlußenden des Rolladenstabes dargestellt. Im Ausführungsbeispiel sind im Hakenbereich 11 und im Ösenbereich 12 mehrere Nieten 11a - d sowie 12a - e dargestellt.In Figure 3, a mechanical connection is shown at the connection ends of the roller shutter bar. In the exemplary embodiment are in the hook area 11 and Several rivets 11a-d and 12a-e are shown in the eyelet region 12.

Figur 4 zeigt nun zwischen der Außenwandung 13 und der Innenwandung 14 des Rolladenstabes eine kraftschlüssige Verbindung in Form einer Verklebung 15. Hierzu wurde das Aluminiumband im Mittelbereich der Innenwandung 14 soweit nach innen verformt, daß es eine Kontaktstelle mit der Außenwandung 13 bildet. An dieser Kontaktstelle kann ein vorher aufgetragener Haftvermittler die kraftschlüssige Verklammerung bewirken. Die Verklammerung kann punktweise an einer oder mehreren Stellen der Innen- und Außenwandung oder auch durchgehend linienförmig in Richtung der Längs-Mittel-Achse folgen.FIG. 4 now shows a non-positive connection in the form of an adhesive bond 15 between the outer wall 13 and the inner wall 14 of the roller shutter rod. For this purpose, the aluminum strip in the central region of the inner wall 14 was deformed inwards to such an extent that it forms a contact point with the outer wall 13. At this point of contact, a previously applied adhesion promoter can bring about the positive locking. The brackets can follow the points at one or more points on the inner and outer walls or also continuously in the form of a line in the direction of the longitudinal center axis.

Neben der Verklebung 15 im Mittelbereich des Rolladenstabes sind noch Verklebungen 16,17,17a an den Anschlußenden vorgesehen. Alle Verklebungen können grundsätzlich im kalten oder warmen Zustand hergestellt werden. Für höhere Festigkeitsanforderungen hat sich es jedoch als vorteilhaft herausgestellt, die mit einem Haftmedium versehenen Aluminiumbandbereiche unter Hitzeeinwirkung kraftschlüssig zu verbinden. Die Temperaturen liegen bei der Erwärmung der Haftmedien oberhalb von ca. 100o C und vorzugsweise im Bereich von 150 bis 200o C. Hierbei wird der Schmelzkleber aktiviert und die erreichte Festigkeit des Hohlkörperprofils entspricht dem eines mit PU-Schaum ausgeschäumten Profils gleicher Abmessung.In addition to the adhesive 15 in the central region of the roller shutter rod, adhesive bonds 16, 17, 17 a are also provided at the connection ends. All bonds can be made in cold or warm condition. For higher strength requirements, however, it has proven to be advantageous to non-positively connect the aluminum strip regions provided with an adhesive medium under the action of heat. When the adhesive media are heated, the temperatures are above approximately 100 ° C. and preferably in the range from 150 to 200 ° C. The hot-melt adhesive is activated and the strength of the hollow body profile corresponds to that of a profile of the same dimension that is foamed with PU foam.

Die Erwärmung kann durch handelsübliche Mittel erfolgen, z.B. durch Infrarot- oder Induktionsheizelemente, die an geeigneter Stelle während Rollformung des erfindungegemäßen Rolladenstabes angebracht sind.The heating can be carried out by commercially available means, e.g. by infrared or induction heating elements which are attached at a suitable point during roll forming of the roller shutter rod according to the invention.

Das fertige Produkt muß danach gezielt abgekühlt werden, z.B. durch Anblasen mit Luft.The finished product must then be specifically cooled, for example by blowing with air.

Nach vollständiger Aushärtung können erfindungsgemäße Rolladenstäbe einer Sonneneinstrahlung mit Temperaturen von bis zu 80o C standhalten. Als Klebstoffe zwischen Kunststoff und Metall lassen sich alle geeigneten Harze, Acrylate und Schmelzklebstoffe wie z.B. Polyamide verwenden.After complete curing, roller shutter slats according to the invention can withstand solar radiation at temperatures of up to 80 ° C. All suitable resins, acrylates and hot melt adhesives such as polyamides can be used as adhesives between plastic and metal.

Wie beschrieben, sind neben den Kontaktstellen an den Anschlußenden des Rolladenstabes auch im Mittelbereich Kontaktstellen an verschiedenen Stellen des Hohlkörperprofils möglich. Die Kontaktstellen werden dadurch erzeugt, daß das ursprünglich parallel laufende Aluminiumband zwischen den Anschlußenden des Rolladenstabes im Mittelbereich des Hohlkörperprofils verformt wird.As described, in addition to the contact points at the connection ends of the roller shutter rod, contact points at various points of the hollow body profile are also possible in the central region. The contact points are produced in that the aluminum strip, which originally runs in parallel, is deformed between the connection ends of the roller shutter rod in the central region of the hollow body profile.

Vorzugsweise wird die Innenwandung 14 des Hohlkörperprofils 18 derart verformt, daß eine Kontaktstelle 15 mit der Außenwandung 13 entsteht. Es kann aber auch die Außenwandung 13 z.B. sickenförmig verformt werden, wobei der Sickenboden eine Kontaktstelle mit der Innenwandung 14 des Hohlkörperprofils 18 bildet. Darüber hinaus lassen sich auch beide Wandungen 13,14 gleichzeitig verformen, wenn dies aus Gründen der Festigkeit bzw. zur Stabilitätserhöhung zweckmäßig ist.The inner wall 14 of the hollow body profile 18 is preferably deformed such that a contact point 15 with the outer wall 13 is created. However, the outer wall 13 e.g. are deformed in a bead shape, the bead base forming a contact point with the inner wall 14 of the hollow body profile 18. In addition, both walls 13, 14 can also be deformed at the same time if this is expedient for reasons of strength or to increase stability.

Die mit der Verklebung im kalten oder warmen Zustand erzielbare kraftschlüssige Verbindung kann auch durch andere thermische Verfahren wie Schweißen oder Löten oder auch durch kalte Verbindungsverfahren wie Preß- oder Reibschweißen erfolgen.The non-positive connection that can be achieved with the adhesive bond in the cold or warm state can also be achieved by other thermal processes such as welding or soldering or also by cold connection processes such as pressure or friction welding.

Daneben sind auch mechanische Verbindungsverfahren wie Nieten, Schrauben, Clintschen und andere Druckumformverfahren anwendbar. Entscheidend ist, daß eine kraftschlüssige, temperaturstabile Verbindung entsteht, die auch einer schwingenden Belastung standhält, wie sie z.B. unter Einwirkung von Windkräften auftreten kann.In addition, mechanical connection processes such as rivets, screws, clipping and other pressure forming processes can also be used. It is crucial that a frictional, temperature-stable connection is created, which also withstands an oscillating load, such as can occur under the influence of wind forces.

Wie eingangs erläutert, können bei der Herstellung der kraftschlüssigen Verbindung Kunststoffe und insbesondere Schmelzkleber eingesetzt werden. Diese werden unter Wärmeeinwirkung verschweißt (Kunststoffe) bzw. verklebt (Schmelzkleber). Neben den in der Beschreibung erwähnten Copolymeren wie Polyäthylen können auch Polypropylen-Film verwendet werden.As explained at the beginning, plastics and in particular hot-melt adhesive can be used in the production of the non-positive connection. These are welded under the influence of heat (plastics) or glued (hot melt adhesive). In addition to the copolymers mentioned in the description, such as polyethylene, polypropylene film can also be used.

Es ist auch möglich, Kontaktkleber für die Herstellung der kraftschlüssigen Verbindung zu verwenden. Dann werden die damit beschichteten Bandflächen kurzzeitig unter Druckeinwirkung in Kontakt gebracht und somit eine dauerhafte Verbindung an beliebiger Stelle zwischen den Wandungen bzw. Anschlußenden des Hohlkörperprofils erzeugt.It is also possible to use contact glue to create the positive connection. Then the strip surfaces coated with it are briefly brought into contact under pressure and a permanent connection is thus produced at any point between the walls or connecting ends of the hollow body profile.

Claims (14)

Formstabilisierter Rolladenstab bestehend aus einem zu einem Hohlkörperprofil rollgeformten Aluminiumband gekennzeichnet durch folgende Merkmale: - das Aluminiumband ist einseitig mindestens teilweise mit Kunststoff beschichtet, - die beschichtete Seite des Aluminiumbandes bildet die Innenseite des Hohlkörperprofils, - das Hohlkörperprofil weist obere und untere Anschlußbereiche (2,3,4,5) auf, in denen das Aluminiumband doppellagig geführt ist, - das Hohlkörperprofil weist eine Innenwandung (14) und eine Außenwandung (13) auf, - das Hohlkörperprofil weist mindestens eine Kontaktstelle (8,9,10,11a-d, 12a-e, 15,16,17,17a) auf, an der mindestens zwei Aluminiumbandlagen kraftschlüssig miteinander verbunden sind. Dimensionally stabilized roller shutter slat consisting of an aluminum strip roll-formed into a hollow body profile, characterized by the following features: - the aluminum strip is at least partially coated with plastic on one side, the coated side of the aluminum strip forms the inside of the hollow body profile, the hollow body profile has upper and lower connection areas (2, 3, 4, 5) in which the aluminum strip is guided in two layers, - The hollow body profile has an inner wall (14) and an outer wall (13), - The hollow body profile has at least one contact point (8,9,10,11a-d, 12a-e, 15,16,17,17a), on which at least two layers of aluminum strip are non-positively connected. Formstabilisierter Rolladenstab nach Anspruch 1,
dadurch gekennzeichnet, daß die
Verbindung der mindestens zwei Aluminiumbandlagen durch eine im Bereich der Kontaktstelle (8,9,10,16,17,17a) als Schmelzklebeschicht ausgebildete Kunststoffschicht ausgebildet ist.Dimensionally stabilized roller shutter slat according to claim 1,
characterized in that the
Connection of the at least two aluminum strip layers is formed by a plastic layer formed in the area of the contact point (8,9,10,16,17,17a) as a hot-melt adhesive layer. Formstabilisierter Rolladenstab nach Anspruch 1 und 2,
dadurch gekennzeichnet, daß die
kraftschlüssige Verbindung der mindestens zwei Aluminiumbandlagen durch eine Schweißverbindung gebildet istDimensionally stabilized roller shutter slat according to claims 1 and 2,
characterized in that the
non-positive connection of the at least two aluminum strip layers is formed by a welded connection Formstabilisierter Rolladenstab nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die
kraftschlüssige Verbindung der mindestens zwei Aluminiumbandlagen durch eine Niet-, Schraub- oder Clintschverbindung gebildet ist.Dimensionally stabilized roller shutter slat according to one of claims 1 to 3,
characterized in that the
non-positive connection of the at least two aluminum tape layers is formed by a rivet, screw or clinch connection. Formstabilisierter Rolladenstab nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die
kraftschlüssige Verbindung in mindestens einem der beiden Anschlußbereiche (2,3,4,5), vorzugsweise in beiden Anschlußbereichen (2,3,4,5), vorgesehen ist.Dimensionally stabilized roller shutter slat according to one of claims 1 to 4,
characterized in that the
non-positive connection is provided in at least one of the two connection areas (2,3,4,5), preferably in both connection areas (2,3,4,5). Formstabilisierter Rolladenstab nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die
mindestens zwei Aluminiumbandlagen durch die Innenwandung (14) und die Außenwandung (13) gebildet sind, die an einer Kontaktstelle (15) zu einer kraftschlüssigen Verbindung zusammengeführt sind.Dimensionally stabilized roller shutter slat according to one of claims 1 to 4,
characterized in that the
at least two aluminum strip layers are formed by the inner wall (14) and the outer wall (13), which are brought together at a contact point (15) to form a non-positive connection. Formstabilisierter Rolladenstab nach Anspruch 6,
dadurch gekennzeichnet, daß die
Innenwandung (14) im Bereich der Kontaktstelle (15) einen geringeren Biegeradius aufweist als die Außenwandung (13).Dimensionally stabilized roller shutter bar according to claim 6,
characterized in that the
Inner wall (14) in the area of the contact point (15) has a smaller bending radius than the outer wall (13). Formstabilisierter Rolladenstab nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die
Aluminiumbanddicke zwischen 0,15 und 0,8 mm liegt.Dimensionally stabilized roller shutter slat according to one of the preceding claims,
characterized in that the
Aluminum strip thickness is between 0.15 and 0.8 mm. Verfahren zur Herstellung eines formstabilisierten Rolladenstabes,
dadurch gekennzeichnet, daß ein
einseitig mit einem Kunststoff beschichtetes Aluminiumband unter Ausbildung von doppellagigen Anschlußbereichen (2,3,4,5) und einer Innenwandung (14) sowie einer Außenwandung (13) zu einem Hohlkörperprofil rollgeformt wird und daß zwischen mindestens zwei Aluminiumbandlagen eine kraftschlüssige Verbindung gebildet wird.Process for producing a dimensionally stabilized roller shutter bar,
characterized in that a
aluminum strip coated on one side with a plastic to form double-layer connection areas (2, 3, 4, 5) and an inner wall (14) and an outer wall (13) into a hollow body profile and that a non-positive connection is formed between at least two layers of aluminum strip. Verfahren nach Anspruch 9,
dadurch gekennzeichnet, daß der
Kunststoff aus einem Haftmedium besteht und die zum Hohlkörperprofil geformten Aluminiumbandlagen in zumindest einem der beiden Anschlußbereiche unter Druck gehalten werden, bis eine kraftschlüssige Verbindung entsteht.Method according to claim 9,
characterized in that the
Plastic consists of an adhesive medium and the aluminum strip layers formed into the hollow body profile are held under pressure in at least one of the two connection areas until a non-positive connection is produced. Verfahren nach Anspruch 9 oder 10,
dadurch gekennzeichnet, daß die
Kunststoffschicht aus einem Schmelzkleber besteht und daß das zum Hohlkörperprofil geformte Aluminiumband nach einer Erwärmung im Bereich der doppellagigen Anschlußbereiche (2,3,4,5) verklebt oder verschweißt wird.A method according to claim 9 or 10,
characterized in that the
Plastic layer consists of a hot melt adhesive and that the aluminum strip formed into the hollow body profile is glued or welded after heating in the region of the double-layer connection areas (2, 3, 4, 5). Verfahren nach einem der Ansprüche 9 bis 11,
dadurch gekennzeichnet, daß die
Verklebung bzw. Verschweißung im Anschluß an die Rollformung des Hohlkörperprofils erfolgt.Method according to one of claims 9 to 11,
characterized in that the
Gluing or welding takes place after the roll forming of the hollow body profile. Verfahren nach einem der Ansprüche 9 bis 11,
dadurch gekennzeichnet, daß die
Erwärmung des Schmelzklebers durch Aufheizung des Aluminiumbandes während der Rollformung erfolgt.Method according to one of claims 9 to 11,
characterized in that the
The hot melt adhesive is heated by heating the aluminum strip during roll forming. Verfahren nach einem der Ansprüche 9 bis 13,
dadurch gekennzeichnet, daß die
Innenwandung (14) in Richtung der Außenwandung (13) zur Ausbildung einer Kontaktstelle verformt wird.Method according to one of claims 9 to 13,
characterized in that the
Inner wall (14) is deformed in the direction of the outer wall (13) to form a contact point.
EP91103444A 1990-03-12 1991-03-07 Roller shutter slat of stable form and its method of fabrication Revoked EP0446778B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91103444T ATE92581T1 (en) 1990-03-12 1991-03-07 FORM-STABILIZED ROLLER SHUTTER BAR AND PROCESS FOR ITS MANUFACTURE.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4007777 1990-03-12
DE4007777 1990-03-12
DE4036410A DE4036410A1 (en) 1990-03-12 1990-11-15 SHAPED ROLLER SHUTTER ROD AND METHOD FOR THE PRODUCTION THEREOF
DE4036410 1990-11-15

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EP0446778A2 true EP0446778A2 (en) 1991-09-18
EP0446778A3 EP0446778A3 (en) 1992-05-06
EP0446778B1 EP0446778B1 (en) 1993-08-04

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EP (1) EP0446778B1 (en)
JP (1) JPH0626287A (en)
AT (1) ATE92581T1 (en)
DE (2) DE4036410A1 (en)
DK (1) DK0446778T3 (en)
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US7357171B2 (en) 2004-03-17 2008-04-15 Qmi Security Solutions Low-clearance shutter slat
US7784522B2 (en) * 2004-03-17 2010-08-31 Qualitas Manufacturing Incorporated Locator and shutter slat
DE102004043573B3 (en) * 2004-09-09 2006-04-20 Ulrich Clauss Slat for a sun blind
US20070006980A1 (en) * 2005-07-08 2007-01-11 Zabala Robert E Roll up storm shutter slat connector retention system
US20070137802A1 (en) * 2005-12-20 2007-06-21 Lukasik David W Protective shutter panel
US8584731B1 (en) * 2009-04-02 2013-11-19 Rollac Shutter Of Texas, Inc. Shutter slat for a rolling shutter system
US8857497B1 (en) 2009-04-02 2014-10-14 Rollac Shutter Of Texas, Inc. Rolling shutter system with a plurality of single wall slats
US9074411B2 (en) 2012-02-20 2015-07-07 James V. Miller Shutter slat and compact shutter assembly
WO2013126453A2 (en) * 2012-02-20 2013-08-29 Qualitas Manufacturing Incorporated Improved shutter slat
US10465440B2 (en) 2012-02-20 2019-11-05 Qualitas Manufacturing Incorporated Shutter slat
CN109508490B (en) * 2018-11-08 2023-03-24 中车青岛四方机车车辆股份有限公司 Acoustic model equivalent method for hollow aluminum profile
RU2732894C1 (en) * 2019-11-05 2020-09-24 Акционерное общество "Научно-производственное объединение специальных материалов" (АО "НПО Спецматериалов") Bullet-proof roller shutters
RU2752887C1 (en) * 2020-12-08 2021-08-11 Акционерное общество "Научно-производственное объединение специальных материалов" (АО "НПО Спецматериалов") Burglar-proof roller shutters

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EP0034198A1 (en) * 1980-02-18 1981-08-26 Türenwerke Riexinger GmbH & Co.KG Slat for a multi-section overhead door or roller shutter, and method of making such a slat
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EP0365908A1 (en) * 1988-10-22 1990-05-02 VAW Aluminium AG Roller shutter slat used in soundproof shutters

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EP0365908A1 (en) * 1988-10-22 1990-05-02 VAW Aluminium AG Roller shutter slat used in soundproof shutters
DE8907445U1 (en) * 1989-06-19 1989-10-05 Vereinigte Aluminium-Werke AG Berlin - Bonn, 5300 Bonn Sound-absorbing roller shutter slat made of aluminium or an aluminium alloy

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DK0446778T3 (en) 1993-12-27
AU637877B2 (en) 1993-06-10
AU7280791A (en) 1991-09-12
JPH0626287A (en) 1994-02-01
DE4036410A1 (en) 1991-09-19
EP0446778B1 (en) 1993-08-04
EP0446778A3 (en) 1992-05-06
US5204147A (en) 1993-04-20
DE59100235D1 (en) 1993-09-09
LV10734A (en) 1995-06-20
RU2039866C1 (en) 1995-07-20
ATE92581T1 (en) 1993-08-15
DE4036410C2 (en) 1992-12-17
ES2044632T3 (en) 1994-01-01

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