EP2332849A1 - Cover ring having a slanted part and manufacturing process - Google Patents

Cover ring having a slanted part and manufacturing process Download PDF

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Publication number
EP2332849A1
EP2332849A1 EP20110152976 EP11152976A EP2332849A1 EP 2332849 A1 EP2332849 A1 EP 2332849A1 EP 20110152976 EP20110152976 EP 20110152976 EP 11152976 A EP11152976 A EP 11152976A EP 2332849 A1 EP2332849 A1 EP 2332849A1
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EP
European Patent Office
Prior art keywords
flat web
cover ring
ring
sealing
closure layer
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
EP20110152976
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German (de)
French (fr)
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EP2332849B1 (en
Inventor
Wolfgang Peter
Wolfgang Lattner
Till Isensee
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Trivium Packaging Group Netherlands BV
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Impress Metal Packaging SA
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Publication date
Application filed by Impress Metal Packaging SA filed Critical Impress Metal Packaging SA
Priority to PL11152976T priority Critical patent/PL2332849T3/en
Publication of EP2332849A1 publication Critical patent/EP2332849A1/en
Application granted granted Critical
Publication of EP2332849B1 publication Critical patent/EP2332849B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0894—Spring arm

Definitions

  • the invention is concerned with a particular design of a cover ring to optimize the force acting as buckling membrane acting closure layer, wherein the force is optimized in an adhesive strip, in particular a sealed seam, in order to increase the resilience of the seam by a pending internal pressure in a closed package. Other forces can be better absorbed.
  • the cover ring is first sealed with the sealing layer (claim 16), delivered in this prefabricated form and filled at the filler of the hull with the contents to then cover it together with the cover ring and the sealed closed position together and then the double fold edge train.
  • EP-A-683 110 (Carnaumetalbox) shows in Figure 6 and Figure 7 two variants with different inner shapes on the flat bar, a triangular shape ("curl”) and a flat shape ("flattened to a fold"), see. there page 4, lines 27 to 41.
  • the invention is based on the technical problem of increasing a holding force on the flat web without having to make additional changes in the consistency or thickness or width of the sealed seam.
  • the invention proposes not to align the flat web substantially horizontally, but to extend in its extension inclined at an angle, being used as a reference plane that plane, which results in a whosiegelten closure position.
  • the flat web is angled upward, with a large range of angles is initially possible, between above 10 ° and up to substantially 90 °, based on the mentioned level.
  • the closure layer must not already be sealed, but the cover ring is also so circumscribed and claimed that the closure position as such is not yet sealed (claim 1), but hypothetically serves as a measure of which level is used as a comparison level. This level can also be considered (claim 2) as a "horizontal" when hitting the lid ring on a surface.
  • areas of the angular extent (the inclined extent) of the flat web above 10 ° in the range between 25 ° and 35 ° and between 40 ° and 60 ° or substantially perpendicular or between 80 ° and 90 ° (claim 3).
  • the Randbord ist the cover ring is a circumferentially extending, outwardly and downwardly arching structure which is suitable for Anfalzen the cover ring to a fuselage hook of a fuselage (claim 18).
  • the fold can be a double fold application.
  • cover ring is first sealed with the sealing layer (claim 16), delivered in this prefabricated form and filled at the bottler of the hull with the contents to cover him then with the cover ring and the sealed-seal position together and then form the double fold edge.
  • the entire sealed seam is circumferentially continuously separated and opens the interior to give access to the contents.
  • a Randeinrollung can be provided (claim 2, 9). It forms a deflection point for the closure layer, which is aligned from this êteinrollung in a flat position (without internal pressure load), while the edge of this closure position according to the orientation of the flat web inclined and extending ab2020lbar thereon over the sealed seam (the adhesive strip) extends.
  • deflecting pressure forces within the sealed container, which act on the closure position at least partially converted into such forces, which form in the direction of extension of the sealed seam as tensile forces. In this case, a much higher force can be applied in this direction, after the entire width of the sealed seam resists this tensile force (claim 2).
  • Metallic films can be used as the closure layer, as well as plastic films which are sealed in the edge region. Also possible are composite films (multiple layers or layers) or metallized films which are to be sealed (claims 12 to 15).
  • the sealing surface is an extra applied sealing strip on the flat web, if a metallic sealing layer is used as a foil. It has a substantial width, more than half, preferably substantially the entire extension of the flat web (claim 11).
  • the inner edge curl can even reach axially beyond the upper side of the edge bordering for the folded seam.
  • FIG. 1 a section of a cover ring is shown, which is closed in the closed state with a film 1, which can take many alternative designs, so may be made of plastic or metal or a composite of such layers.
  • an edge trim 2 is provided, which has a substantially U-shaped form.
  • a different U-shaped shape is found in a groove N1, which is formed between the inner wall of Randbordtechnik as a core wall and an upright flat web 3a.
  • the edge region of the closure layer 1 is closed with a sealing layer not separately shown here.
  • this sealing layer 30 as adhesion layer, for example, adhesive or other suitable, adhesive and food-compatible material.
  • the hull is shown as a trough 20, which has a sloping protruding edge 21, which is inverted when closing the Deckelbordtechnik 2, to be then transferred with a capping machine and a folding roller in a double seam and to close the trunk 20.
  • the container wall 22 of the fuselage is shown, which defines the height of the receiving volume of the fuselage 20.
  • a deviseinrollung 4 On the inside of the flat web 3a, a deviseinrollung 4 is provided, the exact design of the FIGS. 4a, 4b can be removed. It avoids cutting dangers and ensures a deflection u of the closure layer 1, between a sealing portion in the edge region 1 b and a plan section, which freely over the entire interior, within the Randbordtechnik 4 passes over and this closes.
  • the inclination of the flat web 3a is about 90 ° as angle ⁇ 1 in the embodiment of FIG. 1 specified.
  • the alignment of the flat web is thus carried out substantially perpendicular to the plane which is predetermined by the inner region of the closure layer 1.
  • the réellebordtechnik 4 protrudes in this example axially over the top of the outside Randbordtechnik 2 over, so that the closure layer 1 protrudes upward on this outside.
  • FIG. 2 An alternative inclination ⁇ 2 is in FIG. 2 shown for the flat bar 3b.
  • This angle is in the range between 40 ° and 60 °, oriented at the described plane of the membrane 1, which is here shown with the thickness d as very thin.
  • the sheet metal in the cover ring is stronger, so that the molded-in geometries are maintained in normal use, with the exception of the forming of the lid edge 2 in the formation of the seam with the fuselage hook 21 of the fuselage 20th
  • weaker inclination ⁇ 2 compared to FIG. 1 relative to the flat web 3b brings a different cross-sectional shape of the substantially wedge-shaped circumferential groove N2 having a rounded groove bottom.
  • This groove base forms the lowest point of the cover ring, which may be round as such, oval, long oval or rectangular, with slightly rounded inner corners, while allowing the formation of an internal curl 4 also in these inner corners.
  • FIG. 3 Another design shows the FIG. 3 in which a flatter orientation ⁇ 3 of the flat web 3c in the range between 25 ° and 35 ° is selected. All other provisos of the preceding description of FIG. 2 are fulfilled as well.
  • the mecaniceinrollung 4 serves as a deflection point for the membrane in the region between the circumferentially extending seal point 30.1 b and the inner surface 1 to cover the opening within the réelleeinrollung. 4
  • the angle ⁇ 3 can be further reduced in other examples, which are not shown separately, to about 10 °, but should be above 0 ° and thus form an oblique (inclined) training relative to the described plane of the closure membrane 1.
  • FIG. 4b Due to the inclination of the flat web, shown by way of example by examples ⁇ 1, ⁇ 2 and ⁇ 3, a system according to the FIG. 4b receive.
  • An internal pressure on the freely bearing inner surface of the membrane 1 is deflected by the réellebordtechnik 4 and provides a tensile force in the sealing area 30.
  • the entire width of the sealed seam 30, here in the cross section of FIG. 4b shown, this tensile force z can resist, and better resist, than if a horizontal orientation of the flat bar after FIG. 4a is selected.
  • the compressive force F i acts on the membrane 1 so that a notch effect x at the point 31 of the sealed seam 30 is formed by a vertical tensile force X, which due to the pending substantially perpendicular to the extension of the sealing strip 30 forces easier to loss of cohesive effect and that leads to a cohesive failure, than that at FIG. 4b was described.

Abstract

A container (20) has a closure (1) with a lever pull-ring opener. The lever ring has a peripheral flat strip (3a) running radially outwards to the lever ring rim (2). The rim and flat strip are linked by a groove (N1). The flat strip acts as a sealing zone and extends relative to the closure (1) plane at an angle alpha greater than zero.

Description

Die Erfindung befasst sich mit einer besonderen Formgestaltung eines Deckelrings zur Optimierung der Krafteinwirkung der als aufwölbbare Membran wirkenden Verschlusslage, wobei die Krafteinwirkung in einen Haftstreifen, insbesondere eine Siegelnaht, zwecks Erhöhung der Belastbarkeit der Naht durch einen anstehenden Innendruck bei einer geschlossenen Verpackung optimiert wird. Auch andere Krafteinwirkungen können besser aufgefangen werden.The invention is concerned with a particular design of a cover ring to optimize the force acting as buckling membrane acting closure layer, wherein the force is optimized in an adhesive strip, in particular a sealed seam, in order to increase the resilience of the seam by a pending internal pressure in a closed package. Other forces can be better absorbed.

In einem beanspruchten Herstellungsverfahren wird der Deckelring zunächst mit der Verschlusslage versiegelt (Anspruch 16), in dieser vorgefertigten Form ausgeliefert und beim Abfüller der Rumpf mit dem Füllgut befüllt, um ihn anschließend mit dem Deckelring und der aufgesiegelten Verschlusslage gemeinsam zu bedecken und dann den Doppelfalz randseitig auszubilden.In a claimed manufacturing process, the cover ring is first sealed with the sealing layer (claim 16), delivered in this prefabricated form and filled at the filler of the hull with the contents to then cover it together with the cover ring and the sealed closed position together and then the double fold edge train.

Ausgehend von der üblichen Gestaltung eines Deckelrings, vgl. beispielsweise EP-A408 268 (CMB) oder WO-A97/49510 (Impress), dort Figur 4, oder GB-A2 022 474 (Swiss Aluminium), welcher eine Deckelbordierung außenseitig und innenseitig einen horizontal ausgerichteten Flachsteg aufweist, soll der Halt (das Haften) einer auf diesem Flachsteg aufgesiegelten membranartigen Verschlussfolie verbessert werden. Im Normalzustand wird der Deckelring innen zunächst mit der Siegelfolie verschlossen. Dadurch entsteht eine umlaufende Siegelnaht von einer gewissen Breite, die sich deutlich auf dem Flachsteg erstreckt. Hier werden die Haltekräfte für die Verschlusslage aufgebracht, welche durch einen entstehenden Innendruck leicht aufgewölbt wird, was die Siegelnaht an der Haftstelle von der Innenseite beginnend kerbartig belastet, bevorzugt aber nicht so hoch oder stark, dass eine Kohäsionskräftegrenze überschritten wird.Starting from the usual design of a cover ring, cf. for example EP-A408 268 (CMB) or WO-A97 / 49510 (Impress), there FIG. 4 , or GB-A2 022 474 (Swiss Aluminum), which has a Deckelbordierung outside and inside a horizontally oriented flat web, the hold (the adhesion) of a sealed on this flat bar membrane-like sealing film is to be improved. In the normal state, the cover ring is initially sealed inside with the sealing film. This creates a circumferential sealing seam of a certain width, which extends significantly on the flat web. Here, the holding forces are applied to the sealing layer, which is slightly bulged by a resulting internal pressure, which burdensome loads the seal at the point of adhesion from the inside, but preferably not so high or strong that a cohesive force limit is exceeded.

Auch im übrigen Stand der Technik sind geneigte Deckelborde bislang bei ED Deckeln bekannt geworden, vgl. dazu DE-A28 30 614 (Officine Monfalconese) oder WO-A00/21840 (Brasilata Metallicas).In the rest of the art inclined cover shelves have been known so far in ED lids, see. to DE-A28 30 614 (Officine Monfalconese) or WO-A00 / 21840 (Brasilata metallica).

EP-A683 110 (Carnaumetalbox) zeigt in Figur 6 und Figur 7 zwei Varianten mit verschiedenen Innenformen am Flachsteg, eine dreieckige Form ("curl") und eine flache Form ("flattened to a fold"), vgl. dort Seite 4, Zeilen 27 bis 41. EP-A-683 110 (Carnaumetalbox) shows in Figure 6 and Figure 7 two variants with different inner shapes on the flat bar, a triangular shape ("curl") and a flat shape ("flattened to a fold"), see. there page 4, lines 27 to 41.

Die Erfindung geht von der technischen Problemstellung aus, eine Haltekraft auf dem Flachsteg zu vergrößern, ohne zusätzliche Änderungen in der Konsistenz oder Stärke oder Breite der Siegelnaht vornehmen zu müssen.The invention is based on the technical problem of increasing a holding force on the flat web without having to make additional changes in the consistency or thickness or width of the sealed seam.

Die Erfindung schlägt dazu vor, den Flachsteg nicht im Wesentlichen horizontal auszurichten, sondern in seiner Erstreckung geneigt in einem Winkel verlaufen zu lassen, wobei als Bezugsebene diejenige Ebene herangezogen wird, welche sich bei einer aufgesiegelten Verschlusslage ergibt. Dadurch wird der Flachsteg nach aufwärts abgewinkelt, wobei ein großer Bereich von Winkeln zunächst möglich ist, zwischen oberhalb von 10° und bis zu im wesentlichen 90°, bezogen auf die angesprochene Ebene. Dabei muß die Verschlusslage nicht bereits aufgesiegelt sein, sondern der Deckelring ist auch so umschrieben und beansprucht, dass die Verschlusslage als solches noch nicht aufgesiegelt ist (Anspruch 1), aber hypothetisch als Maß dafür dient, welche Ebene als Vergleichsebene herangezogen wird. Diese Ebene kann auch (Anspruch 2) als "Horizontale" angesehen werden, wenn man den Deckelring auf eine Fläche auflegt.The invention proposes not to align the flat web substantially horizontally, but to extend in its extension inclined at an angle, being used as a reference plane that plane, which results in a aufgesiegelten closure position. As a result, the flat web is angled upward, with a large range of angles is initially possible, between above 10 ° and up to substantially 90 °, based on the mentioned level. The closure layer must not already be sealed, but the cover ring is also so circumscribed and claimed that the closure position as such is not yet sealed (claim 1), but hypothetically serves as a measure of which level is used as a comparison level. This level can also be considered (claim 2) as a "horizontal" when hitting the lid ring on a surface.

Bevorzugt sind Bereiche der winkligen Erstreckung (der geneigten Erstreckung) des Flachstegs oberhalb von 10°, im Bereich zwischen 25° und 35° sowie zwischen 40° und 60° oder aber im wesentlichen senkrecht oder zwischen 80° und 90° (Anspruch 3).Preferably, areas of the angular extent (the inclined extent) of the flat web above 10 °, in the range between 25 ° and 35 ° and between 40 ° and 60 ° or substantially perpendicular or between 80 ° and 90 ° (claim 3).

Bei Neigung des Flachstegs ergibt sich eine keilförmige Nut zwischen einer umlaufenden Wand, welche als Kernwand zur Randbordierung des Deckelrings führt, und dem geneigten Flachsteg. Diese keilförmige Gestaltung hat zwei nicht parallel verlaufende Wände und einen abgerundeten Bodenbereich, der als Nut umläuft und die tiefste Stelle des Deckelrings - in axialer Richtung betrachtet - bildet (Anspruch 7).In inclination of the flat web results in a wedge-shaped groove between a peripheral wall, which leads as a core wall for Randbordierung the cover ring, and the inclined flat web. This wedge-shaped design has two non-parallel walls and a rounded bottom portion which rotates as a groove and the lowest point of the cover ring - viewed in the axial direction - forms (claim 7).

Die Randbordierung des Deckelrings ist eine umfänglich verlaufende, nach außen und unten sich wölbende Struktur, die zum Anfalzen des Deckelrings an einen Rumpfhaken eines Rumpfes geeignet ist (Anspruch 18). Als Falz kann ein Doppelfalz Anwendung finden.The Randbordierung the cover ring is a circumferentially extending, outwardly and downwardly arching structure which is suitable for Anfalzen the cover ring to a fuselage hook of a fuselage (claim 18). The fold can be a double fold application.

Meist wird der Deckelring zunächst mit der Verschlusslage versiegelt (Anspruch 16), in dieser vorgefertigten Form ausgeliefert und beim Abfüller der Rumpf mit dem Füllgut befüllt, um ihn anschließend mit dem Deckelring und der aufgesiegelten Verschlusslage gemeinsam zu bedecken und dann den Doppelfalz randseitig auszubilden.Most of the cover ring is first sealed with the sealing layer (claim 16), delivered in this prefabricated form and filled at the bottler of the hull with the contents to cover him then with the cover ring and the sealed-seal position together and then form the double fold edge.

An einer geeigneten Stelle am Rand der Verschlusslage kann zumindest eine oder mehrere Laschen vorgesehen sein, welche zum Abschälen dienen und die Siegelnaht an dieser Stelle beginnen aufzutrennen. Die gesamte Siegelnaht wird umfänglich fortlaufend aufgetrennt und öffnet den Innenraum, um Zugang zu dem Füllgut zu geben.At a suitable location on the edge of the closure layer, at least one or more tabs may be provided, which serve for peeling and the sealing seam begin to split at this point. The entire sealed seam is circumferentially continuously separated and opens the interior to give access to the contents.

An der Innenseite des geneigt ausgerichteten Flachstegs kann eine Randeinrollung vorgesehen sein (Anspruch 2, 9). Sie bildet eine Umlenkstelle für die Verschlusslage, die ab dieser Inneneinrollung in einer planen Lage (ohne Innendruckbelastung) ausgerichtet ist, während sich der Rand dieser Verschlusslage entsprechend der Ausrichtung des Flachstegs geneigt und darauf über die Siegelnaht (den Haftstreifen) abschälbar befestigt erstreckt. Durch die Umlenkung werden Druckkräfte innerhalb des verschlossenen Behälters, welche auf die Verschlusslage wirken, zumindest teilweise in solche Kräfte umgesetzt, welche sich in Erstreckungsrichtung der Siegelnaht als Zugkräfte ausbilden. Hierbei kann eine wesentlich höhere Kraft in dieser Richtung aufgebracht werden, nachdem die gesamte Breite der Siegelnaht dieser Zugkraft widersteht (Anspruch 2). Reine senkrecht zur Siegelnaht ausgebildete Zugkräfte, welche beispielsweise beim Abschälen oder Öffnen des Verschlusses anstehen, können für den verschlossenen Zustand herabgesetzt werden. Dadurch kann der Zeitpunkt verzögert werden, zu dem die Kohäsionswirkung der Siegelnaht bricht, dem so genannten Kohäsionsbruch, welcher statt bei 25 N in höhere Bereiche verlagert werden kann, bis hin zu 40 N (Anspruch 2). Bei im Wesentlichen 90° werden sogar 50 N bis zum Bruch erreicht.On the inside of the inclined aligned flat web, a Randeinrollung can be provided (claim 2, 9). It forms a deflection point for the closure layer, which is aligned from this Inneneinrollung in a flat position (without internal pressure load), while the edge of this closure position according to the orientation of the flat web inclined and extending abschälbar thereon over the sealed seam (the adhesive strip) extends. By deflecting pressure forces within the sealed container, which act on the closure position, at least partially converted into such forces, which form in the direction of extension of the sealed seam as tensile forces. In this case, a much higher force can be applied in this direction, after the entire width of the sealed seam resists this tensile force (claim 2). Pure traction forces formed perpendicular to the sealing seam, which are present for example when peeling or opening the closure, can be reduced for the closed state. This can delay the time at which the cohesive effect of the sealed seam breaks, the so-called cohesive failure, which can be shifted to higher levels instead of 25 N, up to 40 N (claim 2). At substantially 90 ° even 50 N are reached until breakage.

Als Verschlusslage können metallische Folien Anwendung finden, ebenso aber Kunststofffolien, welche im Randbereich gesiegelt werden. Ebenso sind Verbundfolien (mehrere Lagen oder Schichten) oder metallisierte Folien möglich, die aufzusiegeln sind (Ansprüche 12 bis 15).Metallic films can be used as the closure layer, as well as plastic films which are sealed in the edge region. Also possible are composite films (multiple layers or layers) or metallized films which are to be sealed (claims 12 to 15).

Als Siegelfläche bietet sich ein extra aufgebrachter Siegelstreifen auf dem Flachsteg an, wenn eine metallische Verschlusslage als Folie verwendet wird. Sie hat eine wesentliche Breite, mehr als die Hälfte, bevorzugt im Wesentlichen die gesamte Erstreckung des Flachstegs (Anspruch 11).The sealing surface is an extra applied sealing strip on the flat web, if a metallic sealing layer is used as a foil. It has a substantial width, more than half, preferably substantially the entire extension of the flat web (claim 11).

Wird ein im wesentlichen senkrecht (zur horizontalen Ebene der Verschlusslage) ausgerichteter Flachsteg eingesetzt, kann die innen liegende Randeinrollung sogar oberhalb der Oberseite der Randbordierung für die Falznaht hinaus axial herüberreichen.If a flat web aligned substantially perpendicular (to the horizontal plane of the closure layer) is used, the inner edge curl can even reach axially beyond the upper side of the edge bordering for the folded seam.

Ausführungsbeispiele erläutern und ergänzen die Erfindung.

Figur 1
veranschaulicht einen Ausschnitt aus einem Deckelring, welcher in einem axialen Schnitt gezeigt ist.
Figur 2
veranschaulicht eine alternative Ausführungsform mit einem anders geneigten Flachsteg.
Figur 3
veranschaulicht eine dritte Ausführungsform mit einem nochmals anders, hier nochmals flacher geneigt verlaufenden Flachsteg.
Figur 4a, Figur 4b
veranschaulichen Unterschiede zwischen Zugkräften und Scherkräften bei einer Druckbelastung aus dem Innenraum auf die Innenseite der Verschlusslage 1, wobei die Druckbelastung mit Fi bezeichnet ist.
Exemplary embodiments explain and supplement the invention.
FIG. 1
illustrates a section of a cover ring, which is shown in an axial section.
FIG. 2
illustrates an alternative embodiment with a different inclined flat web.
FIG. 3
illustrates a third embodiment with a yet different, here again flatter inclined flat web.
Figure 4a, Figure 4b
illustrate differences between tensile forces and shear forces in a pressure load from the interior to the inside of the closure layer 1, wherein the pressure load is denoted by F i .

In Figur 1 ist ein Ausschnitt eines Deckelrings gezeigt, der in verschlossenem Zustand mit einer Folie 1 verschlossen ist, welche viele alternative Gestaltungen annehmen kann, so aus Kunststoff oder Metall oder einem Verbund solcher Schichten gestaltet sein kann.In FIG. 1 a section of a cover ring is shown, which is closed in the closed state with a film 1, which can take many alternative designs, so may be made of plastic or metal or a composite of such layers.

Im Randbereich des mit Folie verschlossenen Deckels ist eine Randbordierung 2 vorgesehen, welche im wesentlichen U-förmige Gestalt aufweist. Eine anders gerichtete U-förmige Gestalt findet sich in einer Nut N1, die zwischen der Innenwand der Randbordierung als Kernwand und einem aufragend aufgestellten Flachsteg 3a ausgebildet ist. Auf der axialen Außenseite des Flachstegs ist der Randbereich der Verschlusslage 1 mit einer hier nicht gesondert dargestellten Siegellage verschlossen. Zur Ausbildung der Siegellage wird exemplarisch auf die Figur 4b verwiesen, welche diese Siegellage 30 als Adhäsionslage zeigt, beispielsweise aus Klebstoff oder einem anderen geeigneten, haftenden und lebensmittel-verträglichen Werkstoff.In the edge region of the lid closed with foil, an edge trim 2 is provided, which has a substantially U-shaped form. A different U-shaped shape is found in a groove N1, which is formed between the inner wall of Randbordierung as a core wall and an upright flat web 3a. On the axial outer side of the flat web, the edge region of the closure layer 1 is closed with a sealing layer not separately shown here. For the training of the seal situation becomes exemplary on the FIG. 4b which shows this sealing layer 30 as adhesion layer, for example, adhesive or other suitable, adhesive and food-compatible material.

Symbolisch ist der Rumpf als Wanne 20 gezeigt, welcher einen geneigt abstehenden Rand 21 aufweist, der beim Verschließen von der Deckelbordierung 2 überstülpt wird, um anschließend mit einer Verschließmaschine und einer Falzrolle in einen Doppelfalz überführt zu werden und den Rumpf 20 zu verschließen. Vertikal aufragend ist die Behälterwand 22 des Rumpfes gezeigt, die die Höhe des aufnehmenden Volumens des Rumpfes 20 definiert.Symbolically, the hull is shown as a trough 20, which has a sloping protruding edge 21, which is inverted when closing the Deckelbordierung 2, to be then transferred with a capping machine and a folding roller in a double seam and to close the trunk 20. Vertically rising, the container wall 22 of the fuselage is shown, which defines the height of the receiving volume of the fuselage 20.

An der Innenseite des Flachstegs 3a ist eine Inneneinrollung 4 vorgesehen, deren genaue Gestaltung auch aus den Figuren 4a, 4b entnommen werden kann. Sie vermeidet Schnittgefahren und sorgt für eine Umlenkung u der Verschlusslage 1, zwischen einem Siegelabschnitt in deren Randbereich 1 b und einem Planabschnitt, welcher frei tragend über den gesamten Innenraum, innerhalb der Randbordierung 4 herüberreicht und diesen verschließt.On the inside of the flat web 3a, a Inneneinrollung 4 is provided, the exact design of the FIGS. 4a, 4b can be removed. It avoids cutting dangers and ensures a deflection u of the closure layer 1, between a sealing portion in the edge region 1 b and a plan section, which freely over the entire interior, within the Randbordierung 4 passes over and this closes.

Die Neigung des Flachstegs 3a ist mit ca. 90° als Winkel α1 in dem Ausführungsbeispiel der Figur 1 angegeben. Die Ausrichtung des Flachstegs erfolgt damit im wesentlichen senkrecht zur Ebene, welche durch den Innenbereich der Verschlusslage 1 vorgegeben wird. Die Innenbordierung 4 ragt in diesem Beispiel axial leicht über die Oberseite der außenseitigen Randbordierung 2 herüber, so dass die Verschlusslage 1 über diese Außenseite nach oben hervorsteht.The inclination of the flat web 3a is about 90 ° as angle α1 in the embodiment of FIG. 1 specified. The alignment of the flat web is thus carried out substantially perpendicular to the plane which is predetermined by the inner region of the closure layer 1. The Innenbordierung 4 protrudes in this example axially over the top of the outside Randbordierung 2 over, so that the closure layer 1 protrudes upward on this outside.

Eine alternative Neigung α2 ist in Figur 2 für den Flachsteg 3b gezeigt. Dieser Winkel liegt im Bereich zwischen 40° und 60°, orientiert an der beschriebenen Ebene der Membran 1, die hier mit der Dicke d als sehr dünn eingezeichnet ist. Gegenüber der Dicke dieser Verschlusslage 1 ist das Blech im Deckelring stärker ausgebildet, so dass die eingeformten Geometrien im normalen Gebrauch erhalten bleiben, mit Ausnahme der Umformung des Deckelrandes 2 bei der Ausbildung der Falznaht mit dem Rumpfhaken 21 des Rumpfes 20.An alternative inclination α2 is in FIG. 2 shown for the flat bar 3b. This angle is in the range between 40 ° and 60 °, oriented at the described plane of the membrane 1, which is here shown with the thickness d as very thin. Compared with the thickness of this closure layer 1, the sheet metal in the cover ring is stronger, so that the molded-in geometries are maintained in normal use, with the exception of the forming of the lid edge 2 in the formation of the seam with the fuselage hook 21 of the fuselage 20th

Die in Figur 2 eingezeichnete schwächere Neigung α2 gegenüber der Figur 1 bezogen auf den Flachsteg 3b bringt eine andere Querschnittsgestalt der im wesentlichen keilförmig verlaufenden Umfangsnut N2, die einen abgerundeten Nutgrund aufweist. Dieser Nutgrund bildet die tiefste Stelle des Deckelrings, der als solches rund ausgebildet sein kann, oval, langoval oder in Rechteckform, mit leichten abgerundeten Innenecken, bei Ermöglichung der Ausbildung einer Inneneinrollung 4 auch in diesen inneren Eckbereichen.In the FIG. 2 shown weaker inclination α2 compared to FIG. 1 relative to the flat web 3b brings a different cross-sectional shape of the substantially wedge-shaped circumferential groove N2 having a rounded groove bottom. This groove base forms the lowest point of the cover ring, which may be round as such, oval, long oval or rectangular, with slightly rounded inner corners, while allowing the formation of an internal curl 4 also in these inner corners.

Eine noch weitere Gestaltung zeigt die Figur 3 , bei der eine flachere Ausrichtung α3 des Flachstegs 3c im Bereich zwischen 25° und 35° gewählt ist. Alle übrigen Maßgaben der vorhergehenden Beschreibung der Figur 2 sind ebenso erfüllt. Auch hier dient die Inneneinrollung 4 als Umlenkstelle für die Membran im Bereich zwischen der umfänglich verlaufenen Siegelstelle 30,1 b und der Innenfläche 1 zur Abdeckung der Öffnung innerhalb der Inneneinrollung 4.Another design shows the FIG. 3 in which a flatter orientation α3 of the flat web 3c in the range between 25 ° and 35 ° is selected. All other provisos of the preceding description of FIG. 2 are fulfilled as well. Again, the Inneneinrollung 4 serves as a deflection point for the membrane in the region between the circumferentially extending seal point 30.1 b and the inner surface 1 to cover the opening within the Inneneinrollung. 4

Der Winkel α3 kann in weiteren Beispielen, die nicht gesondert dargestellt sind, weiter reduziert werden, bis etwa 10°, sollte aber oberhalb von 0° liegen und damit eine schräge (geneigte) Ausbildung gegenüber der beschriebenen Ebene der Verschlussmembran 1 bilden.The angle α3 can be further reduced in other examples, which are not shown separately, to about 10 °, but should be above 0 ° and thus form an oblique (inclined) training relative to the described plane of the closure membrane 1.

Durch die unterschiedliche Orientierung des Flachstegs, der aufgrund seines Namens nicht horizontal ausgerichtet ist, sondern auf einer deutlichen Breite flach ausgebildet ist, um eine flache Siegelnaht zu erzeugen, auf der die Membran hinreichend gut und dicht befestigt werden kann, gibt es unterschiedliche Gestaltungen für die Form der Umfangsnut N2, N3, mit einer jeweils flacher nach innen verlaufenden Wand, aber im wesentlichen gleich bleibender Steigung der Kernwand zur Deckelbordierung 2.Due to the different orientation of the flat land, which is not horizontally aligned due to its name, but is flat on a significant width to produce a flat sealed seam on which the membrane can be sufficiently well and tightly secured, there are different designs for the Form of the circumferential groove N2, N3, with a respective flatter inwardly extending wall, but substantially constant slope of the core wall for Deckelbordierung second

Durch die Neigung des Flachstegs, exemplarisch an Beispielen α1, α2 und α3 gezeigt, wird ein System nach der Figur 4b erhalten. Ein Innendruck auf die frei tragende Innenfläche der Membran 1 wird durch die Innenbordierung 4 umgelenkt und sorgt für eine Zugkraft im Siegelbereich 30. Die gesamte Breite der Siegelnaht 30, hier im Querschnitt der Figur 4b dargestellt, kann dieser Zugkraft z widerstehen, und zwar besser widerstehen, als wenn eine horizontale Ausrichtung des Flachstegs nach Figur 4a gewählt wird. Hier wirkt die Druckkraft Fi auf die Membran 1 so, dass eine Kerbwirkung x an der Stelle 31 der Siegelnaht 30 durch eine senkrechte Zugkraft X entsteht, welche durch die im wesentlichen senkrecht zur Erstreckung des Siegelstreifens 30 anstehenden Kräfte leichter zu einem Verlust der Kohäsionswirkung und damit zu einem Kohäsionsbruch führt, als das bei Figur 4b beschrieben war.Due to the inclination of the flat web, shown by way of example by examples α1, α2 and α3, a system according to the FIG. 4b receive. An internal pressure on the freely bearing inner surface of the membrane 1 is deflected by the Innenbordierung 4 and provides a tensile force in the sealing area 30. The entire width of the sealed seam 30, here in the cross section of FIG. 4b shown, this tensile force z can resist, and better resist, than if a horizontal orientation of the flat bar after FIG. 4a is selected. Here, the compressive force F i acts on the membrane 1 so that a notch effect x at the point 31 of the sealed seam 30 is formed by a vertical tensile force X, which due to the pending substantially perpendicular to the extension of the sealing strip 30 forces easier to loss of cohesive effect and that leads to a cohesive failure, than that at FIG. 4b was described.

Je stärker die Neigung des Flachstegs 3, desto stärker die Umwandlung der senkrecht zur Siegelnaht 30 verlaufenden Kräfte nach Figur 4a in solche, die an sich als "Scherkräfte" zu bezeichnen sind. Es werden Peelkräfte (senkrechte Zugkräfte) in solche parallel zu 30 verlaufenden Kräfte umgesetzt, die nach Figur 4b besser aufgenommen werden können, von der gesamten Breite des Siegelstreifens 30, als die eine Kerbwirkung habenden Zugkräfte X nach Figur 4a.The stronger the inclination of the flat web 3, the stronger the conversion of the forces perpendicular to the sealing seam 30 FIG. 4a into those that are to be described as "shearing forces". It Peelkräfte (vertical tensile forces) are converted into such parallel to 30 extending forces, which after FIG. 4b can be better absorbed, of the entire width of the sealing strip 30, as the notch effecting tensile forces X after FIG. 4a ,

Claims (16)

Deckelring für ein Anfalzen an einem Rumpf (20) und zum randseitigen Aufsiegeln einer Verschlusslage (1), welche - im aufgesiegelten Zustand - einen Innenraum des Deckelrings überbrückt und - in angefalztem Zustand des Deckelrings - den Rumpf (20) verschließt, wobei (i) der Deckelring eine umfänglich verlaufende Randbordierung (2) und einen umlaufenden Flachsteg (3c) aufweist, welcher radial nach außen in die Randbordierung (2) des Deckelrings übergeht, wobei zwischen der Randbordierung und dem Flachsteg eine umlaufende Nut (N3) verläuft; (ii) der Flachsteg zum Aufsiegeln des Randes der Verschlusslage (1) geeignet ist (30) und gegenüber einer horizontalen Ebene in einem Winkel (α3) zwischen im Wesentlichen 25° und 30° verläuft. Cover ring for a Anfalzen on a hull (20) and for edge sealing a closure layer (1), which - bridged in the sealed state - an interior of the cover ring and - in folded state of the cover ring - the hull (20) closes, said (I) the cover ring has a circumferentially extending Randbordierung (2) and a circumferential flat web (3c), which merges radially outwardly into the Randbordierung (2) of the cover ring, wherein between the Randbordierung and the flat web a circumferential groove (N 3 ) ; (ii) the flat web is suitable for sealing the edge of the closure layer (1) (30) and extends at an angle (α 3 ) between substantially 25 ° and 30 ° with respect to a horizontal plane. Deckelring für ein Anfalzen an einem Rumpf (20) und zur Aufnahme einer randseitig aufgesiegelten Verschlusslage (1), welche einen Innenraum des Deckelrings überbrückt und - in angefalztem Zustand - den Rumpf (20) verschließt, wobei (i) der Deckelring einen umlaufenden Flachsteg (3a,3b,3c) aufweist, welcher radial nach außen in eine umlaufende Randbordierung (2) des Deckelrings übergeht, wobei zwischen der Randbordierung und dem Flachsteg eine umlaufende Nut (N1,N2,N3) verläuft; (ii) der Flachsteg so aus einer Horizontalen aufwärts geneigt verläuft, und mit einer Inneneinrollung (4) an seinem radial inneren Ende versehen ist, dass eine auf dem Flachsteg aufgesiegelte (30) Verschlusslage (1) an der Inneneinrollung (4) umgelenkt wird und bei einer Druckkraft (Fi) senkrecht zur Erstreckungsebene der Verschlusslage (1) eine wesentliche Kraftkomponente (z) über die Inneneinrollung (4) umgelenkt wird und in die Siegelnaht (30) so eingeleitet wird, dass sie in der Erstreckungsrichtung der Siegelnaht verläuft und eine Kohäsionswirkung der Siegelnaht (30) in höhere Bereiche als 25 N, bis hin zu 40 N verlagert wird. Lid ring for a Anfalzen on a hull (20) and for receiving a sealed edge sealing position (1), which bridges an interior of the cover ring and - in folded state - the hull (20) closes, said (I) the cover ring has a peripheral flat web (3a, 3b, 3c), which merges radially outwardly into a peripheral Randbordierung (2) of the cover ring, wherein between the Randbordierung and the flat web a circumferential groove (N1, N2, N3) extends ; (ii) the flat web is inclined upwardly from a horizontal, and provided with an inner curl (4) at its radially inner end, that a (30) closed position (1) sealed on the flat web is deflected at the inner curl (4) and a substantial force component (z) is deflected via the Inneneinrollung (4) at a pressure force (F i ) perpendicular to the plane of extension of the closure layer (1) and in the sealed seam (30) is introduced so that it runs in the direction of extension of the sealed seam and a Cohesive effect of the sealing seam (30) is shifted to higher than 25 N, up to 40 N. Deckelring nach Anspruch 2, wobei der Winkel (α1,α2,α3) zwischen im Wesentlichen 10° und im Wesentlichen 90° liegt, insbesondere zwischen im Wesentlichen 40° und 60° oder zwischen im Wesentlichen 25° und 35° oder zwischen im Wesentlichen 80° und 90° liegt.Covering ring according to claim 2, wherein the angle (α1, α2, α3) is between substantially 10 ° and substantially 90 °, in particular between substantially 40 ° and 60 ° or between substantially 25 ° and 35 ° or between substantially 80 ° and 90 °. Deckelring nach Anspruch 2, wobei die Aufnahme der Verschlusslage ein Aufsiegeln eines Randes der Verschlusslage (1) über einen umfänglich verlaufenden Siegelstreifen (30) auf dem Flachsteg (3a,3b,3c) ist.Covering ring according to claim 2, wherein the receptacle of the closure layer is a sealing of an edge of the closure layer (1) via a circumferentially extending sealing strip (30) on the flat web (3a, 3b, 3c). Deckelring nach Anspruch 2, wobei die Siegelnaht (20) ein Haftstreifen ist.Covering ring according to claim 2, wherein the sealing seam (20) is an adhesive strip. Deckelring nach Anspruch 1, wobei der Flachsteg radial innen eine Inneneinrollung (4) aufweist.Lid ring according to claim 1, wherein the flat web has radially inside a Inneneinrollung (4). Deckelring nach Anspruch 1 oder Anspruch 2, wobei die umlaufende Nut (N1,N2,N3) keilförmig ist, wobei zwei nicht parallele Wände der Keilform von dem geneigten Flachsteg (3c) und einer umlaufenden Wand, die als Kernwand zur Randbordierung (2) führt, gebildet werden, und ein abgerundeter Bodenbereich vorgesehen ist, der als Bestandteil der umlaufenden Nut die tiefste Stelle des Deckelrings - in axialer Richtung betrachtet - bildet.Covering ring according to claim 1 or claim 2, wherein the circumferential groove (N1, N2, N3) is wedge-shaped, wherein two non-parallel walls of the wedge shape of the inclined flat web (3c) and a peripheral wall, which leads as a core wall to Randbordierung (2) , are formed, and a rounded bottom portion is provided, which forms part of the circumferential groove, the lowest point of the cover ring - viewed in the axial direction - forms. Deckelring nach einem voriger Ansprüche 1 bis 6, wobei die Nut (N1,N2,N3) eine keilförmige Ausgestaltung mit einem abgerundeten Boden aufweist und zwischen einer Kernwand zur Deckelbordierung (2) und dem geneigt ausgerichteten Flachsteg (3a,3b,3c) ausgebildet ist.Lid ring according to one of the preceding claims 1 to 6, wherein the groove (N1, N2, N3) has a wedge-shaped configuration with a rounded bottom and between a core wall for Deckelbordierung (2) and the inclined aligned flat web (3a, 3b, 3c) is formed , Deckelring nach Anspruch 7, wobei die Randbordierung (2) des Deckelrings eine sich nach außen und unten wölbende Struktur ist, geeignet zum Anfalzen an einen Rumpfhaken (21) eines Behälterrumpfs.A cover ring according to claim 7, wherein the edge trim (2) of the cover ring is an outwardly and downwardly arching structure suitable for fitting to a body hook (21) of a container body. Deckelring nach einem voriger Ansprüche, wobei die Verschlusslage über die Inneneinrollung (4) verläuft und dabei umgelenkt wird (u), so dass sich ein Randstreifen (1 b) bildet, der in einem von Null verschiedenen Winkel gegenüber der Ebene der Verschlusslage (1) im Innenbereich des Deckelrings verläuft.Lid ring according to one of the preceding claims, wherein the closure layer runs over the inner curl (4) and is thereby deflected (u), so that an edge strip (1b) is formed, which is at a non-zero angle with respect to the plane of the closure layer (1). runs in the interior of the cover ring. Deckelring nach einem voriger Ansprüche, wobei die Siegelnaht (30) als ein umfänglicher verlaufender Streifen eine wesentliche Breite auf der Erstreckung des Flachstegs (3;3a, 3b, 3c) aufweist, welche Breite mehr als die Hälfte einer Breite des Flachstegs ist.Covering ring according to one of the preceding claims, wherein the sealing seam (30) as a circumferential strip has a substantial width on the extension of the flat web (3; 3a, 3b, 3c), which width is more than half of a width of the flat web. Deckelring nach einem voriger Ansprüche, wobei die Verschlusslage als Folie oder Membran, insbesondere aus Kunststoff oder Metallblech oder Metallfolie oder Verbundfolie (Schichtenverbund), gebildet ist.Lid ring according to any preceding claim, wherein the closure layer is formed as a film or membrane, in particular of plastic or sheet metal or metal foil or composite foil (layer composite). Deckelring nach einem der Ansprüche 1 bis 11, wobei die Verschlusslage (1) eine metallische Folie ist.Lid ring according to one of claims 1 to 11, wherein the closure layer (1) is a metallic foil. Deckelring nach einem der Ansprüche 1 bis 11, wobei die Verschlusslage (1) eine Verbundfolie aus mehreren Lagen oder Schichten ist.Covering ring according to one of claims 1 to 11, wherein the closure layer (1) is a composite film of a plurality of layers or layers. Deckelring nach einem der Ansprüche 1 bis 11, wobei die Verschlussfolie eine metallisierte Folie ist.Covering ring according to one of claims 1 to 11, wherein the sealing film is a metallized film. Verfahren zur Herstellung eines Deckels aus Deckelring und aufgesiegelter Verschlusslage (1), wobei der Deckelring mit einer Verschlussfolie versiegelt wird und in dieser vorgefertigten Form ausgeliefert wird, um beim Abfüllen einen mit Füllgut befüllten Rumpf (20) zu bedecken und am Deckelrand einen Doppelfalz auszubilden, wobei der Deckelring eine Form nach einem der vorigen Ansprüche besitzt. Method for producing a cover from cover ring and sealed-off closure layer (1), wherein the cover ring is sealed with a sealing film and delivered in this prefabricated form to cover during filling a filled with filling hull (20) and form a double rebate on the edge of the lid, wherein the lid ring has a shape according to any one of the preceding claims.
EP11152976.4A 2003-08-19 2004-08-18 Cover ring having a slanted part and manufacturing process Not-in-force EP2332849B1 (en)

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DE2003138445 DE10338445B4 (en) 2003-08-19 2003-08-19 Cover ring with inclined flat bar
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WO2000021840A2 (en) 1998-10-08 2000-04-20 Brasilata S.A. Embalagens Metálicas A paint can provided with two lids
WO2005005277A1 (en) * 2003-07-01 2005-01-20 Crown Packaging Technology Inc Closure

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ZA200601188B (en) 2007-05-30
WO2005019047A3 (en) 2005-03-31
AU2004266755B2 (en) 2010-07-01
PL2332849T3 (en) 2016-04-29
EA008460B1 (en) 2007-06-29
EA200600273A1 (en) 2006-08-25
CN1906092B (en) 2010-10-13
ATE497914T1 (en) 2011-02-15
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CA2536081C (en) 2012-06-19
CA2536081A1 (en) 2005-03-03
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DE10338445B4 (en) 2007-02-08
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EP1658226A2 (en) 2006-05-24
HUE027234T2 (en) 2016-08-29
DE502004012181D1 (en) 2011-03-24
EP2332849B1 (en) 2015-10-07
ES2558345T3 (en) 2016-02-03
US20060214430A1 (en) 2006-09-28
PL1658226T3 (en) 2011-07-29
MA27985A1 (en) 2006-07-03
DK1658226T3 (en) 2011-05-30
EP1658226B1 (en) 2011-02-09
AU2004266755A1 (en) 2005-03-03
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PT1658226E (en) 2011-05-11
ES2362036T3 (en) 2011-06-27

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