EP0912403B1 - Tubular cardboard sealing system, and box and box lid having such a sealing system - Google Patents

Tubular cardboard sealing system, and box and box lid having such a sealing system Download PDF

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Publication number
EP0912403B1
EP0912403B1 EP97929206A EP97929206A EP0912403B1 EP 0912403 B1 EP0912403 B1 EP 0912403B1 EP 97929206 A EP97929206 A EP 97929206A EP 97929206 A EP97929206 A EP 97929206A EP 0912403 B1 EP0912403 B1 EP 0912403B1
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EP
European Patent Office
Prior art keywords
box
closure
lid
cardboard
cylinder
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.)
Expired - Lifetime
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EP97929206A
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German (de)
French (fr)
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EP0912403A1 (en
Inventor
Werner Grabher
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Individual
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Individual
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Classifications

    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0018—Upper closure of the 43-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0087—Lower closure of the 47-type

Definitions

  • the invention relates to a cardboard tube closure according to the Preamble of claim 1, and on a can and a can lid Carton with a carton - pipe end.
  • FR 2 219 066 is a cardboard box with a circular cylindrical one Shell surface known, which is closed at both ends with cardboard lids is.
  • These cardboard lids are, as in the figure, based on the can base shown, with two second contact surfaces, each with a first contact surface of the coat glued.
  • the second contact areas form the Side surfaces of a channel receiving the jacket end.
  • the The closing surface inside the can is from the jacket end surface remotely located inside the can.
  • For can end elements that are provided with outlet openings and as a scattering membrane for dosing of the can contents is one in Litter membrane arranged inside the can not be desired because it is used for sealing Close the outlet openings of a lid that can be inserted into the can must be used.
  • Functional, usable lids are made Made of plastic.
  • Cardboard lids have already been produced which are known to be used Plastic covers correspond essentially in shape. This usable cardboard lids are too expensive to manufacture and can also not be an exact concern on one inside the can arranged scattering membrane guarantee, at least not if one Cover connection line should lie close to the edge of the jacket.
  • the invention has now set itself the task of a pipe end Form cardboard that is easy to set up or can be manufactured and is versatile, in particular as a scattering membrane and / or as close to a scattering membrane attachable lid, can be used.
  • a cardboard tube jacket is finished with a cardboard end element closed, the end face essentially in the the pipe jacket final level. That means it is only a contact surface of the End element connected to a contact surface of the jacket.
  • the second contact surfaces simplifies the connection and has, as from the performed tests shows, nevertheless, sufficient strength.
  • the flush pipe end on the end can be used as a scattering membrane be formed.
  • a can with such a diffusing membrane or one any other can can with a lid that can be put over the can is preferably also designed as a pipe closure according to the invention, can be sealed tightly without any problems.
  • the pipe closure according to the invention is made of cardboard, in many different ways usable and easy to set up or manufacture.
  • the tubular jacket is cylindrical and preferably has a circular shape Cross-section.
  • the tubular jacket is wound obliquely to the axis.
  • Around the end element can give a higher stability in its Collar at least one, preferably circular, beads are attached.
  • a pressing device is used at least one radially adjustable pressing surface is provided, which according to the Introducing the contact surfaces against this can be pressed.
  • pressing the inside must have at least one, but preferably several, pressed parts convex pressing surface from a feed position with a smaller pressing surface circumference be movable in a press position with a larger circumference.
  • pressing outside must have at least one, but preferably several, pressed parts concave pressing surface from a feed position with a larger pressing surface circumference be movable in a press position with a smaller circumference.
  • the outside in the Pressable movable parts can be dimensioned so that they are Form a contiguous closed circumferential line.
  • a can according to the invention comprises at least one in the Can end level arranged end element 4, the End surface 4a as a scattering membrane with at least one exit hole 6 is formed, optionally with a removable protective surface 5 is closed.
  • the closing surface according to the invention is, if appropriate of the circumferential, annular collar 4b of the end element 4 as at least partially removable protective membrane.
  • the End surface or scattering membrane 4a is over a first contact surface 4c with the jacket 2 of the can, with a second contact surface 2c of the Jacket 2 connected.
  • the two contact surfaces 2c and 4c are preferred connected to one another by means of heat sealing, an insert used for this purpose press device known per se and therefore not shown, preferably only from the outside, presses against the collar 4b, especially so that its Connects the outside flush to the outside of the undeformed jacket.
  • the can bottom 7 is in the embodiment shown as a cardboard tube end trained according to the prior art. Here lies the Bottom surface 7 in the interior of the can, and there are two connecting surfaces 8 with connected to the mantle end. To the two connecting surfaces 8 against the To press jacket 2, the pressing device must have at least two pressing surfaces to have.
  • a lid 3 which is the inventive one Tube end is formed and a cylindrical cover jacket 1 and a closing element with a flush on a jacket face created cover end surface 3a and one adjacent to the jacket 1 Collar 3b includes, preferably outside, but possibly also on the inside Cover coat 1 can fit!
  • the inside diameter of the cover shell 1 is adapted to the outside diameter of the can.
  • Example 2 shows various shapes in the connection area of the first and the second contact surfaces 2c and 4c or 1c and 3c.
  • the example a) sees before that the contact surface 4c of the membrane collar 4b on the undeformed Can jacket 2 abuts and thus protrudes somewhat from the jacket surface.
  • the can contact surface 2c at Pressing the membrane collar 4b somewhat radially inwards, so that its outside is flush with the outside of the can jacket 2 flees.
  • Example c) shows an embodiment in which the pressing together the can contact surface 2c was designed so that the outer surface of a the lid 3 is flush with the outer surface of the can jacket 2 connects.
  • 3a, 3b and 3c show embodiments in which the end element 4 and the cover 3 have three-part end faces 3a, 4a.
  • the End surface 3a, 4a in one, on the contact surfaces 2c and 4c or 1c and 3c adjoining, radially outer region 10 in the region of an end face Can end level.
  • the end faces are located in a central area 12 3a, 4a slightly offset against the inside of the can.
  • a transition area 11 go the end faces 3a, 4a with an inclined to the can axis annular partial surface from the radial to the central area.
  • the End surfaces 3a and 4a obtained by the inclined partial surfaces in Transition area 11 an increased before connecting to the can jacket 2
  • the transition region 11 enables dimensional stability and after connection together with the central area 12, an increase in volume in the can, without the end surfaces 3a, 4a over the can end plane stretch out. Volume changes arise when the Ambient pressure.
  • the end faces 3a, 4a are in the transition area 11 do not touch each other.
  • the transition areas are corresponding 11 arranged radially offset.
  • the one that forms a closed cavity Pressure equalization area makes it easier to remove and replace the cover 3. It may be advantageous if, according to FIG. 3c Pressure equalization area is increased by the outer area 10 of the End element 4 not at the can end level but a little further is arranged in the interior of the can as the central region 12.
  • the can base can be designed as a pipe end according to the invention; also can Collar, in particular for forming a lid according to the invention, too pressed against the inside of the jacket and connected to it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
  • Package Closures (AREA)
  • Tubes (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

The dispensing box comprises a cylinder (2, 11a) around a box axis (A), essentially comprising cardboard or paper, which is closed at the end by a closure element which is formed as a dispensing membrane (4a, 12) and essentially comprises cardboard or paper. Only a collar-like contact surface of the closure element is connected to a contact surface of the cylinder (2, 11a). The inside of the closure surface of the lid (3, 13) can be placed against the outer surface of the dispensing membrane (4a, 12). In a preferred embodiment, the lid (13) is connected to the dispensing box by means of a snap connection, rotatably about the box axis (A). For this purpose, a first projection (12b) overlapping the box cylinder (11a) on the outside is provided at the upper box edge and a second projection (13b) projecting inward is provided on the inside of the collar (13a) of the lid (13). In the snapped-in state, a locking surface (12c) of the first projection (12b) rests against a locking surface (13c) of the second projection (13b). At least one of the projections (12b) is in the form of a locking lip projecting from the box cylinder (11a) or from the lid collar (13a) and the other projection is preferably in the form of a cardboard ring (13b) connected to the box cylinder (11a) or to the lid collar (13a).

Description

Die Erfindung bezieht sich auf einen Karton-Rohrabschluss nach dem Oberbegriff des Anspruches 1, sowie auf eine Dose und einen Dosendeckel aus Karton mit einem Karton - Rohrabschluss.The invention relates to a cardboard tube closure according to the Preamble of claim 1, and on a can and a can lid Carton with a carton - pipe end.

Bei Karton-Rohren und insbesondere Karton-Dosen ist es gegebenenfalls nötig, mindestens ein, gegebenenfalls aber beide Rohrenden bzw. Dosenenden zu verschliessen. Dazu werden etwa Metallböden mit einem Falz oder mittels Umbördelung fest mit dem Rohr- bzw. Dosenmantel verbunden. Zum Erzielen von entfernbaren Verschlüssen werden meist Kunststoffdeckel mit einer Abschlussfläche, einem zylindrichen Kontaktbereich und einer nach innen stehenden Griffrippe eingesetzt. Beim eingeführten Deckel ist die Abschlussfläche ins Rohrinnere eingeführt.It may be the case with cardboard tubes and in particular cardboard cans necessary, at least one, but possibly both pipe ends or can ends to close. For this purpose, metal floors with a fold or by means Flanging firmly connected to the pipe or can jacket. To achieve Removable closures are usually plastic lids with a End surface, a cylindrical contact area and one inwards standing grip rib used. When the lid is inserted, it is End surface introduced into the inside of the pipe.

Die verbreiteten Karton-Rohre und Karton-Dosen werden meist als Verpackungen eingesetzt, die nach ihrer bestimmungsgemässen Verwendung beseitigt werden. Um ein einfaches und kostengünstiges Recycling zu ermöglichen, sollten die Rohre und Rohrabschlüsse aus lediglich einem und demselben gut recyclierbaren Material ausgebildet sein. Das heisst also, dass auch Abschlussböden und Deckel aus Karton gebildet sein sollten.The widespread cardboard tubes and cardboard cans are mostly used as Packaging used according to its intended use be eliminated. To make recycling simple and inexpensive allow, the pipes and pipe ends should consist of only one and be made of the same recyclable material. So that means that end caps and lids should also be made of cardboard.

Bei Behältern, die auch zur Aufnahme von Flüssigkeiten geeignet sind, werden etwa Abschlusselemente mit Metallschichten verwendet, was nicht mit den strengen Vorschriften für einkomponentige Verpackungsmaterialien vereinbar ist. Es dürfen lediglich äusserst kleine Kunststoff- und/oder Siegellackanteile vorgesehen werden.For containers that are also suitable for holding liquids such as end elements with metal layers, which is not the case with the strict regulations for one-component packaging materials is. Only extremely small amounts of plastic and / or sealing wax may be used be provided.

Aus der FR 2 219 066 ist eine Karton-Dose mit einer kreiszylindrischen Mantelfläche bekannt, die an beiden Enden mit Kartondeckeln verschlossen ist. Diese Kartondeckel sind, wie in der Figur anhand des Dosenbodens dargestellt, mit zwei zweiten Kontaktflächen mit je einer ersten Kontaktfläche des Mantels verleimt. Die zweiten Kontaktflächen bilden dabei die Seitenflächen eines das Mantelende aufnehmenden Kanales. Die das Doseninnere verschliessende Abschlussfläche ist von der Mantel-Endfläche entfernt im Doseninneren angeordnet. Bei Dosen-Abschlusselementen, die etwa mit Austrittsöffnungen versehen sind und als Streumembrane zum dosierbaren Austretenlassen des Doseninhaltes dienen, ist eine im Doseninneren angeordnete Streumembran nicht erwünscht, weil zum dichten Verschliessen der Austrittsöffnungen ein in die Dose einsetzbarer Deckel verwendet werden muss. Funktionstüchtige einsetzbare Deckel werden aus Kunststoff hergestellt. Dabei ist nicht nur das Verwenden eines weiteren Materiales ein Nachteil, sondern auch die Tatsache, dass die Distanz der Streumembran vom Mantelende genau mit der Deckeltiefe übereinstimmen muss. Ausserdem neigt das Streugut dazu, Reste in der umlaufenden Innenkante der Verschlussmembran ausserhalb des Doseninhaltes anzusammeln.FR 2 219 066 is a cardboard box with a circular cylindrical one Shell surface known, which is closed at both ends with cardboard lids is. These cardboard lids are, as in the figure, based on the can base shown, with two second contact surfaces, each with a first contact surface of the coat glued. The second contact areas form the Side surfaces of a channel receiving the jacket end. The the The closing surface inside the can is from the jacket end surface remotely located inside the can. For can end elements that are provided with outlet openings and as a scattering membrane for dosing of the can contents is one in Litter membrane arranged inside the can not be desired because it is used for sealing Close the outlet openings of a lid that can be inserted into the can must be used. Functional, usable lids are made Made of plastic. It's not just using another one Materiales a disadvantage, but also the fact that the distance of the The scattering membrane from the end of the jacket must exactly match the depth of the cover got to. In addition, the grit tends to leave residues in the surrounding Inner edge of the sealing membrane outside the can contents accumulate.

Es wurden schon Kartondeckel hergestellt, die den bekannten einsetzbaren Kunststoffdeckeln im wesentlichen formgemäss entsprechen. Diese einsetzbaren Kartondeckel sind aber in der Herstellung zu aufwendig und können auch nicht ein exaktes Anliegen an einer im Doseninneren angeordneten Streumembran garantieren, zumindest nicht, wenn eine Deckelanschlusslinie dicht an der Mantelendkante anliegen soll.Cardboard lids have already been produced which are known to be used Plastic covers correspond essentially in shape. This usable cardboard lids are too expensive to manufacture and can also not be an exact concern on one inside the can arranged scattering membrane guarantee, at least not if one Cover connection line should lie close to the edge of the jacket.

Die Erfindung hat sich nun die Aufgabe gestellt, einen Rohrabschluss aus Karton auszubilden, der einfach aufgebaut, bzw. herstellbar und vielfältig, insbesondere als Streumembran und/oder als ein dicht an eine Streumembran anlegbarer Deckel, einsetzbar ist.The invention has now set itself the task of a pipe end Form cardboard that is easy to set up or can be manufactured and is versatile, in particular as a scattering membrane and / or as close to a scattering membrane attachable lid, can be used.

Die Lösung der Aufgabe gelingt durch die Verwirklichung der Oberbegriffsmerkmale zusammen mit den kennzeichnenden Merkmalen des Anspruches 1. Bevorzugte Ausführungsformen sind durch Merkmale der abhängigen Ansprüche charakterisiert.The task is solved by realizing the General terms along with the characteristic features of the Claim 1. Preferred Embodiments are characterized by features of the dependent claims characterized.

Ein Rohrmantel aus Karton wird mit einem Abschlusselement aus Karton verschlossen, dessen Abschlussfläche im wesentlichen in der den Rohrmantel abschliessenden Ebene liegt. Das heisst, es ist lediglich eine Kontaktfläche des Abschlusselementes mit einer Kontaktfläche des Mantels verbunden. Durch den Verzicht auf zwei Kontaktflächen des Abschlusselementes bzw. zwei zweite Kontaktflächen wird die Verbindung vereinfacht und hat, wie aus den durchgeführten Tests hervorgeht, trotzdem eine genügende Festigkeit. Zudem kann der stirnseitig bündige Rohrabschluss bei Dosen als Streumembrane ausgebildet werden. Eine Dose mit einer solchen Streumembran oder eine beliebige andere Dose kann mit einem über die Dose stülpbaren Deckel, der vorzugsweise ebenfalls als erfindungsgemässer Rohrabschluss ausgebildet ist, problemlos dicht verschlossen werden.A cardboard tube jacket is finished with a cardboard end element closed, the end face essentially in the the pipe jacket final level. That means it is only a contact surface of the End element connected to a contact surface of the jacket. By dispensing with two contact surfaces of the end element or two The second contact surfaces simplifies the connection and has, as from the performed tests shows, nevertheless, sufficient strength. In addition the flush pipe end on the end can be used as a scattering membrane be formed. A can with such a diffusing membrane or one any other can can with a lid that can be put over the can is preferably also designed as a pipe closure according to the invention, can be sealed tightly without any problems.

Der erfindungsgemässe Rohrabschluss ist aus Karton ausgebildet, vielfältig einsetzbar und einfach aufgebaut, bzw. herstellbar.The pipe closure according to the invention is made of cardboard, in many different ways usable and easy to set up or manufacture.

Der Rohrmantel ist zylindrisch und hat vorzugsweise einen kreisförmigen Querschnitt. Insbesondere ist der Rohrmantel schräg zur Achse gewickelt. Um dem Abschlusselement eine höhere Stabilität zu verleihen, kann in seinem Kragen mindestens eine, vorzugsweise kreisförmige, Sicke angebracht sein.The tubular jacket is cylindrical and preferably has a circular shape Cross-section. In particular, the tubular jacket is wound obliquely to the axis. Around the end element can give a higher stability in its Collar at least one, preferably circular, beads are attached.

Um im wesentlichen zylindrische Verbindungsbereiche, bzw. miteinander verbundene Kontaktflächen zu erzielen, wird eine Pressvorrichtung mit mindestens einer radial verstellbaren Pressfläche vorgesehen, die nach dem Einführen der Kontaktflächen gegen diese pressbar ist. Beim Pressen von innen muss mindestens ein, vorzugsweise aber müssen mehrere Pressteile mit konvexer Pressfläche von einer Zuführlage mit kleinerem Pressflächenumfang in eine Presslage mit grösserem Umfang bewegbar sein. Beim Pressen von aussen muss mindestens ein, vorzugsweise aber müssen mehrere Pressteile mit konkaver Pressfläche von einer Zuführlage mit grösserem Pressflächenumfang in eine Presslage mit kleinerem Umfang bewegbar sein. Die von aussen in die Presslage bewegbaren Teile können so dimensioniert sein, dass sie beim Aneinanderanliegen eine absatzfreie geschlossene Umfangslinie bilden.To essentially cylindrical connection areas, or with each other To achieve connected contact surfaces, a pressing device is used at least one radially adjustable pressing surface is provided, which according to the Introducing the contact surfaces against this can be pressed. When pressing the inside must have at least one, but preferably several, pressed parts convex pressing surface from a feed position with a smaller pressing surface circumference be movable in a press position with a larger circumference. When pressing outside must have at least one, but preferably several, pressed parts concave pressing surface from a feed position with a larger pressing surface circumference be movable in a press position with a smaller circumference. The outside in the Pressable movable parts can be dimensioned so that they are Form a contiguous closed circumferential line.

Beim Pressen eines aussen an dem Mantel anliegenden Kragens wird die Pressung vorzugsweise so durchgeführt, dass die Aussenseite des Kragens bündig mit der unverformten Aussenfläche des Mantels verläuft. Weitere Einzelheiten der Erfindung ergeben sich an Hand der nachfolgenden Beschreibung von in der Zeichnung erläuterten Ausführungsbeispielen.When pressing a collar lying on the outside of the jacket, the Pressing is preferably carried out so that the outside of the collar runs flush with the undeformed outer surface of the jacket. Further details of the invention result from the following description of in the drawing explained embodiments.

Es zeigen:

  • Fig.1 die perspektivische, teilweise geschnittene Darstellung einer erfindungsgemässen Streudose mit aufsetzbarem und abnehmbarem Deckel;
  • Fig.2 Ausschnitte von Schnitten in Achsrichtung durch drei verschiedene Ausführungsformen.
  • Fig.3 Ausschnitte von Schnitten in Achsrichtung durch drei verschiedene Ausführungsformen.
    • Show it:
  • 1 shows the perspective, partially sectioned representation of a litter box according to the invention with a removable and removable lid;
  • Fig.2 sections of cuts in the axial direction by three different embodiments.
  • 3 sections of sections in the axial direction by three different embodiments.

    • Gemäss der Fig.1 umfasst eine erfindungsgemässe Dose mindestens ein in der Dosenabschlussebene angeordnetes Abschlusselement 4, dessen Abschlussfläche 4a als Streumembran mit mindestens einem Austrittsloch 6 ausgebildet ist, das gegebenenfalls mit einer entfernbaren Schutzfläche 5 verschlossen ist. Gegebenenfalls ist die erfindungsgemässe Abschlussfläche des umlaufenden, ringförmigen Kragens 4b des Abschlusselementes 4 als zumindest teilweise entfernbare Schutzmembran ausgebildet. Die Abschlussfläche bzw. Streumembran 4a ist über eine erste Kontaktfläche 4c mit dem Mantel 2 der Dose, und zwar mit einer zweiten Kontaktfläche 2c des Mantels 2 verbunden. Die beiden Kontaktflächen 2c und 4c sind vorzugsweise mittels Heissversiegelung miteinander verbunden, wobei eine dazu eingesetzte, an sich bekannte und daher nicht dargestellte Pressvorrichtung, vorzugsweise lediglich von aussen, gegen den Kragen 4b drückt, insbesondere so, dass seine Aussenseite bündig an die Aussenseite des unverformten Mantels anschliesst.According to FIG. 1, a can according to the invention comprises at least one in the Can end level arranged end element 4, the End surface 4a as a scattering membrane with at least one exit hole 6 is formed, optionally with a removable protective surface 5 is closed. The closing surface according to the invention is, if appropriate of the circumferential, annular collar 4b of the end element 4 as at least partially removable protective membrane. The End surface or scattering membrane 4a is over a first contact surface 4c with the jacket 2 of the can, with a second contact surface 2c of the Jacket 2 connected. The two contact surfaces 2c and 4c are preferred connected to one another by means of heat sealing, an insert used for this purpose press device known per se and therefore not shown, preferably only from the outside, presses against the collar 4b, especially so that its Connects the outside flush to the outside of the undeformed jacket.

    Der Dosenboden 7 ist in der dargestellten Ausführungsform als Karton-Rohrabschluss gemäss dem Stande der Technik ausgebildet. Dabei liegt die Bodenfläche 7 im Doseninneren, und es sind zwei Verbindungsflächen 8 mit dem Mantelende verbunden. Um die beiden Verbindungsflächen 8 gegen den Mantel 2 zu pressen, muss die Pressvorrichtung mindestens zwei Pressflächen haben.The can bottom 7 is in the embodiment shown as a cardboard tube end trained according to the prior art. Here lies the Bottom surface 7 in the interior of the can, and there are two connecting surfaces 8 with connected to the mantle end. To the two connecting surfaces 8 against the To press jacket 2, the pressing device must have at least two pressing surfaces to have.

    Über der Dose ist ein Deckel 3 dargestellt, der als erfindungsgemässer Rohrabschluss ausgebildet ist und dazu einen zylindrischen Deckel-Mantel 1 und ein Abschlusselement mit einer an einer Mantel-Stirnseite bündig angelegten Deckel-Abschlussfläche 3a und einem am Mantel 1 anliegenden Kragen 3b umfasst, vorzugsweise aussen, aber gegebenenfalls auch innen am Deckel-Mantel 1 anliegen kann! Der Innendurchmesser des Deckel-Mantels 1 ist an den Aussendurchmesser der Dose angepasst. Durch den Deckel-Mantel 1 erhält der Deckel 3 eine Stabilität, die auch nach sehr vielen Abnehm- und Aufsetzzyklen einen festen Sitz des Deckels 3 auf der Dose gewährleistet. Above the can, a lid 3 is shown, which is the inventive one Tube end is formed and a cylindrical cover jacket 1 and a closing element with a flush on a jacket face created cover end surface 3a and one adjacent to the jacket 1 Collar 3b includes, preferably outside, but possibly also on the inside Cover coat 1 can fit! The inside diameter of the cover shell 1 is adapted to the outside diameter of the can. Through the cover jacket 1 the lid 3 gets a stability that even after a lot of removal and Fitting cycles ensures a tight fit of the lid 3 on the can.

    Fig.2 zeigt verschiedene Formgebungen im Verbindungsbereich der ersten und der zweiten Kontaktflächen 2c und 4c bzw. 1c und 3c. Das Beispiel a) sieht vor, dass die Kontaktfläche 4c des Membrankragens 4b an dem unverformten Dosenmantel 2 anliegt und somit etwas von der Mantelfläche vorsteht. Um, wie im Beispiel b) gezeigt, entlang der gesamten Dosenachse einen gleichen Aussenradius zu gewährleisten, wird die Dosen-Kontaktfläche 2c beim Anpressen des Membrankragens 4b etwas radial nach innen zusammengepresst, so dass dessen Aussenseite bündig mit der Aussenseite des Dosenmantels 2 fluchtet. Das Beispiel c) zeigt eine Ausführung, bei der das Zusammenpressen der Dosen-Kontaktfläche 2c so ausgeführt wurde, dass die Aussenfläche eines aufgesetzten Deckels 3 bündig an die Aussenfläche des Dosenmantels 2 anschliesst.2 shows various shapes in the connection area of the first and the second contact surfaces 2c and 4c or 1c and 3c. The example a) sees before that the contact surface 4c of the membrane collar 4b on the undeformed Can jacket 2 abuts and thus protrudes somewhat from the jacket surface. Around, as shown in example b), the same along the entire can axis To ensure outer radius, the can contact surface 2c at Pressing the membrane collar 4b somewhat radially inwards, so that its outside is flush with the outside of the can jacket 2 flees. Example c) shows an embodiment in which the pressing together the can contact surface 2c was designed so that the outer surface of a the lid 3 is flush with the outer surface of the can jacket 2 connects.

    Fig.3a, 3b und 3c zeigen Ausführungsformen, bei denen das Abschlusselement 4 und der Deckel 3 dreiteilige Abschlussflächen 3a, 4a haben. Dabei liegt die Abschlussfläche 3a, 4a in einem, an die Kontaktflächen 2c und 4c bzw. 1c und 3c anschliessenden, radial äusseren Bereich 10 im Bereich einer stirnseitigen Dosenabschlussebene. In einem zentralen Bereich 12 liegen die Abschlussflächen 3a, 4a etwas gegen das Doseninnere versetzt. In einem Übergangsbereich 11 gehen die Abschlussflächen 3a, 4a mit einer zur Dosenachse geneigten ringförmigen Teilfläche vom radialen in den zentralen Bereich über. Die Abschlussflächen 3a und 4a erhalten durch die geneigten Teilflächen im Übergangsbereich 11 vor dem Verbinden mit dem Dosenmantel 2 eine erhöhte Formstabilität und nach dem Verbinden ermöglicht der Übergangsbereich 11 zusammen mit dem zentralen Bereich 12 eine Volumenerhöhung in der Dose, ohne dass sich die Abschlussflächen 3a, 4a über die Dosenabschlussebene hinaus ausdehnen. Volumenänderungen ergeben sich bei Änderungen des Umgebungsdruckes.3a, 3b and 3c show embodiments in which the end element 4 and the cover 3 have three-part end faces 3a, 4a. Here lies the End surface 3a, 4a in one, on the contact surfaces 2c and 4c or 1c and 3c adjoining, radially outer region 10 in the region of an end face Can end level. The end faces are located in a central area 12 3a, 4a slightly offset against the inside of the can. In a transition area 11 go the end faces 3a, 4a with an inclined to the can axis annular partial surface from the radial to the central area. The End surfaces 3a and 4a obtained by the inclined partial surfaces in Transition area 11 an increased before connecting to the can jacket 2 The transition region 11 enables dimensional stability and after connection together with the central area 12, an increase in volume in the can, without the end surfaces 3a, 4a over the can end plane stretch out. Volume changes arise when the Ambient pressure.

    Um zwischen dem Deckel 3 und dem Abschlusselement 4 einen Druckausgleichsbereich bereitzustellen, liegen die Abschlussflächen 3a, 4a im Übergangsbereich 11 nicht aneinander an. Entsprechend sind die Übergangsbereiche 11 radial versetzt angeordnet. Der einen geschlossenen Hohlraum bildende Druckausgleichsbereich erleichtert das Abnehmen und Aufsetzen des Deckels 3. Es ist gegebenenfalls von Vorteil, wenn gemäss Fig. 3c der Druckausgleichsbereich vergrössert wird, indem der äussere Bereich 10 des Abschlusselementes 4 nicht an der Dosenabschlussebene sondern etwas weiter im Doseninnern angeordnet ist als der zentrale Bereich 12.Around a pressure compensation area between the cover 3 and the end element 4 To provide, the end faces 3a, 4a are in the transition area 11 do not touch each other. The transition areas are corresponding 11 arranged radially offset. The one that forms a closed cavity Pressure equalization area makes it easier to remove and replace the cover 3. It may be advantageous if, according to FIG. 3c Pressure equalization area is increased by the outer area 10 of the End element 4 not at the can end level but a little further is arranged in the interior of the can as the central region 12.

    Die Erfindung ist auf die dargestellten Ausführungsformen nicht eingeschränkt. Insbesondere ist es dem Fachmann klar, dass auch der Dosenboden als erfindungsgemässer Rohrabschluss ausgebildet werden kann; auch kann der Kragen, insbesondere zur Ausbildung eines erfindungsgemässen Deckels, auch von innen an den Mantel gepresst und mit diesem verbunden werden.The invention is not restricted to the illustrated embodiments. In particular, it is clear to the person skilled in the art that the can base can be designed as a pipe end according to the invention; also can Collar, in particular for forming a lid according to the invention, too pressed against the inside of the jacket and connected to it.

    Claims (9)

    1. Cardboard tube closure, in particular lid for a box or dispensing box, having a closed, metal-free cardboard cylinder (1, 2) arranged around an axis and a metal-free closure element (3, 4) which is tightly connected to the cylinder (1, 2) and is in the form of a cardboard membrane whose closure surface (3a, 4a) is arranged transverse to the axis, characterized in that the closure surface (3a, 4a), in the region of the internal opening of the cardboard tube, lies at least partially in the plane of the tube end and has an annular collar (3b, 4b) which rests with its first, inner, cylindrical contact surface (3c, 4c) against a second, outer, cylindrical contact surface (1c, 2c) of the cylinder (1, 2).
    2. Cardboard tube closure according to Claim 1, characterized in that the closure surface (3a, 4a) has a peripheral region (10), which lies in the plane of the tube end, a central region (12), which is displaced towards the tube interior, and a transition region (11) which connects together the central and the peripheral region (12 and 10, respectively) - preferably obliquely outwards towards the plane of the tube end.
    3. Cardboard tube closure according to Claim 1 or 2, characterized in that at least one, preferably circular, bead is provided in the region of the first (3c, 4c) and/or second (1c, 2c) contact surface in the cylinder (1, 2) and/or in the collar (3b, 4b).
    4. Box having at least one cardboard tube closure according to any of Claims 1 to 3.
    5. Box according to Claim 4, characterized in that the closure surface (4a) lies in a plane of the box end and is in the form of a dispensing membrane having at least one outlet opening (6), in particular covered by a removable protective surface (5).
    6. Box according to Claim 4, characterized in that the closure surface (3a, 4a) lies in a plane of the box end and is in the form of a tight box base or box closure.
    7. Box according to any of Claims 4 to 6, characterized in that the collar (4b) is compressed against the box axis in such a way that its outer surface connects flushly with the outer surface of the non-deformed cylinder (2), or optionally the outer surface of a lid (3) connects flushly with the outer surface of the non-deformed cylinder (2).
    8. Cardboard tube closure according to any of Claims 1 to 3, formed as the lid of a box, characterized in that the collar (3b) extends in the axial direction over the entire cylinder.
    9. Box having a box lid, both of which have a cardboard tube closure according to Claim 2 or 3, characterized in that the transition regions (11) of the two cardboard tube closures are staggered relative to one another in such a way that a closed cavity (13) forming a pressure equilibration region is formed between the box closure element (4a) and the lid closure element (3a).
    EP97929206A 1996-06-20 1997-06-18 Tubular cardboard sealing system, and box and box lid having such a sealing system Expired - Lifetime EP0912403B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    EP97929206A EP0912403B1 (en) 1996-06-20 1997-06-18 Tubular cardboard sealing system, and box and box lid having such a sealing system

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    EP96110000 1996-06-20
    EP96110000 1996-06-20
    EP97929206A EP0912403B1 (en) 1996-06-20 1997-06-18 Tubular cardboard sealing system, and box and box lid having such a sealing system
    PCT/EP1997/003162 WO1997048609A1 (en) 1996-06-20 1997-06-18 Tubular cardboard sealing system, and box and box lid thereof

    Publications (2)

    Publication Number Publication Date
    EP0912403A1 EP0912403A1 (en) 1999-05-06
    EP0912403B1 true EP0912403B1 (en) 2000-08-09

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97929206A Expired - Lifetime EP0912403B1 (en) 1996-06-20 1997-06-18 Tubular cardboard sealing system, and box and box lid having such a sealing system

    Country Status (10)

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    US (1) US5901902A (en)
    EP (1) EP0912403B1 (en)
    AT (1) ATE195292T1 (en)
    AU (1) AU726365B2 (en)
    CA (1) CA2257956C (en)
    DE (1) DE59702154D1 (en)
    DK (1) DK0912403T3 (en)
    ES (1) ES2151283T3 (en)
    WO (1) WO1997048609A1 (en)
    ZA (1) ZA975491B (en)

    Families Citing this family (7)

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    US6193116B1 (en) * 1999-02-08 2001-02-27 Brent River Packaging Corporation Sifter cap for continuous thread containers
    US8393487B1 (en) * 2000-01-06 2013-03-12 Pacific Market International, Llc Hygienic twist lid for insulated beverage container
    US20040026420A1 (en) * 2002-08-01 2004-02-12 Huhtamaki Consumer Packaging, Inc. Rotatable dispenser closure for use with a container
    US8672163B2 (en) * 2009-01-14 2014-03-18 Yeong Leul Kim Reinforced paper lid
    US8414462B2 (en) 2011-01-14 2013-04-09 Sonoco Development, Inc. Apparatus and method of making a paper end with a pressed chuck wall
    US9598228B2 (en) 2014-06-13 2017-03-21 Brothers Donuts Llc Single-sheet tubular food carrier
    EP3473560B1 (en) 2018-04-30 2021-03-03 BillerudKorsnäs AB Snap-on lid

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    US1208483A (en) * 1916-06-28 1916-12-12 Fremont Bartlett Chesbrough Cup.
    US2120898A (en) * 1934-04-17 1938-06-14 Humoco Corp Paper container
    US2150308A (en) * 1938-08-13 1939-03-14 James E Annen Container
    US2505748A (en) * 1948-08-12 1950-05-02 Dixie Cup Co Lid for paper containers
    US2493086A (en) * 1949-02-19 1950-01-03 Lily Tulip Cup Corp Snap-on-cover
    CH365325A (en) * 1956-06-15 1962-10-31 Max Sternau Martin Method for closing containers by means of closing lids, which at least partly consist of a plastic film that can be shrunk under the action of heat, and the device used for carrying out this method
    US3215325A (en) * 1962-07-05 1965-11-02 American Can Co Cup construction
    DE1486704A1 (en) * 1965-10-16 1969-06-12 Verpackungswerk Bracht Gmbh Cardboard transport containers
    FR1593395A (en) * 1968-03-21 1970-05-25
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    FR2289394A1 (en) * 1974-10-30 1976-05-28 Erel Flexible packaging boxes of non-shrinkable plastics - which are sealed strengthed by shrinking plastic sleeve over body cover base parts
    US4154360A (en) * 1978-07-21 1979-05-15 Phillips Petroleum Company Overcap and container assembly
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    US5407107A (en) * 1992-04-29 1995-04-18 Sealright Co., Ltd. Dispenser closure

    Also Published As

    Publication number Publication date
    CA2257956A1 (en) 1997-12-24
    ZA975491B (en) 1998-01-23
    DE59702154D1 (en) 2000-09-14
    US5901902A (en) 1999-05-11
    AU3339997A (en) 1998-01-07
    ATE195292T1 (en) 2000-08-15
    DK0912403T3 (en) 2000-12-18
    AU726365B2 (en) 2000-11-02
    ES2151283T3 (en) 2000-12-16
    CA2257956C (en) 2006-08-15
    WO1997048609A1 (en) 1997-12-24
    EP0912403A1 (en) 1999-05-06

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