EP0912403A1 - Tubular cardboard sealing system, and box and box lid thereof - Google Patents

Tubular cardboard sealing system, and box and box lid thereof

Info

Publication number
EP0912403A1
EP0912403A1 EP97929206A EP97929206A EP0912403A1 EP 0912403 A1 EP0912403 A1 EP 0912403A1 EP 97929206 A EP97929206 A EP 97929206A EP 97929206 A EP97929206 A EP 97929206A EP 0912403 A1 EP0912403 A1 EP 0912403A1
Authority
EP
European Patent Office
Prior art keywords
box
lid
cardboard
jacket
collar
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
EP97929206A
Other languages
German (de)
French (fr)
Other versions
EP0912403B1 (en
Inventor
Werner Grabher
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP97929206A priority Critical patent/EP0912403B1/en
Publication of EP0912403A1 publication Critical patent/EP0912403A1/en
Application granted granted Critical
Publication of EP0912403B1 publication Critical patent/EP0912403B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

  • Cardboard tube end as well as can and can lid with it
  • the invention relates to a cardboard tube closure according to the preamble of claim 1, and to a can and a can lid made of cardboard.
  • end elements with metal layers are used, which is not compatible with the strict regulations for one-component packaging materials. Only extremely small amounts of plastic and / or sealing wax may be used.
  • a cardboard box with a circular cylindrical outer surface is known, which is closed at both ends with cardboard lids.
  • these cardboard lids are glued to two second contact surfaces, each with a first contact surface of the jacket.
  • the second contact surfaces form the side surfaces of a channel receiving the jacket end.
  • the closing surface closing the inside of the can is arranged in the inside of the can, away from the jacket end surface.
  • a scattering membrane arranged in the interior of the can is not desirable because a lid which can be inserted into the can must be used to seal the outlet openings.
  • lids are made of plastic. It is not only the use of another material that is a disadvantage, but also the fact that the distance of the scattering membrane from the end of the jacket must exactly match the depth of the cover. In addition, the spreading material tends to collect residues in the circumferential inner edge of the sealing membrane outside the contents of the can.
  • the invention has now set itself the task of forming a tube end made of cardboard, which is simple to set up, or can be produced and is versatile, in particular as a scattering membrane and / or as a cover which can be placed close to a scattering membrane.
  • a tubular casing made of cardboard is closed with a terminating element made of cardboard, the end surface of which essentially lies in the plane closing the tubular casing. This means that only one contact surface of the terminating element is connected to a contact surface of the jacket.
  • the connection is simplified and, as can be seen from the tests carried out, nevertheless has sufficient strength.
  • the end of the pipe which is flush at the end, can be used as a scattering membrane be formed.
  • a can with such a scattering membrane or any other can be sealed tightly with a cover which can be put over the can and which is preferably also designed as a pipe closure according to the invention.
  • FIG. 1 shows the perspective, partially sectioned illustration of a litter box according to the invention with a lid which can be fitted and removed;
  • the two contact surfaces 2c and 4c are preferably connected to one another by means of heat sealing, a pressing device used for this purpose, known per se and therefore not shown, preferably pressing only against the outside, against the collar 4b, in particular in such a way that its outside is flush with the outside of the undeformed Cloak.
  • the can base 5 is designed as a cardboard tube closure according to the prior art.
  • the bottom surface 7 lies inside the can and two connecting surfaces 8 are connected to the jacket end.
  • the pressing device In order to press the two connecting surfaces 8 against the jacket 2, the pressing device must have at least two pressing surfaces.
  • a cover 3 which is designed as a pipe closure according to the invention and, for this purpose, preferably comprises a cylindrical cover shell 1 and a closure element with a cover closure surface 3a which is flush against a shell end face and a collar 3b on the outside, but also on the inside of the cover jacket 1 if necessary!
  • the inside diameter of the cover jacket 1 is adapted to the outside diameter of the can.
  • the lid jacket 1 gives the lid 3 a stability which ensures that the lid 3 is firmly seated on the can even after a large number of removal and placement cycles.
  • 2 shows various shapes in the connection area of the first and second contact surfaces 2c and 4c or lc and 3c.
  • Example a) provides that the contact surface 4c of the membrane collar 4b bears against the undeformed can jacket 2 and thus protrudes somewhat from the jacket surface.
  • the can contact surface 2c is pressed somewhat radially inwards when the membrane collar 4b is pressed on, so that the outside thereof is flush with the outside of the can jacket 2.
  • Example c) shows an embodiment in which the can contact surface 2c is pressed together in such a way that the outer surface of a cover 3 attached is flush with the outer surface of the can shell 2.
  • closure element 4 and the cover 3 have three-part closure surfaces 3a, 4a.
  • the end surface 3a, 4a lies in a radially outer region 10 adjoining the contact surfaces 2c and 4c or lc and 3c in the region of a can end plane on the end face.
  • the end faces 3a, 4a are slightly offset from the inside of the can.
  • the end surfaces 3a, 4a transition from the radial to the central region with an annular partial surface inclined to the can axis.
  • the end faces 3a and 4a are given increased shape stability by the inclined partial areas in the transition area 11 before being connected to the can jacket 2, and after the connection, the transition area 11 together with the central area 12 enables an increase in volume in the can without the end faces becoming Extend 3a, 4a beyond the can end level. Volume changes result from changes in the ambient pressure.
  • the end faces 3a, 4a do not abut one another in the transition area 11.
  • the transition regions 11 are arranged radially offset.
  • the pressure equalization area forming a closed cavity makes it easier to remove and put on the cover 3. It may be advantageous if, according to FIG. 3c, the pressure equalization area is enlarged by the outer area 10 of the End element 4 is not arranged at the can end level but rather a little further inside the can than the central area 12.
  • the can base can also be designed as a pipe closure according to the invention;
  • the collar in particular to form a cover according to the invention, can also be pressed against the inside of the casing and connected to it.

Landscapes

  • 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

Karton-Rohrabschluss, sowie Dose und Dosendeckel damit Cardboard tube end, as well as can and can lid with it
Die Erfindung bezieht sich auf einen Karton-Rohrabschluss nach dem Oberbegriff des Anspruches 1 , sowie auf eine Dose und einen Dosendeckel aus Karton.The invention relates to a cardboard tube closure according to the preamble of claim 1, and to a can and a can lid made of cardboard.
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.In the case of cardboard tubes and in particular cardboard cans, it may be necessary to close at least one, but possibly both, tube ends or can ends. For this purpose, metal floors are firmly connected to the pipe or can jacket using a fold or by means of flanging. To achieve removable closures, plastic lids with an end surface, a cylindrical contact area and an inward-facing grip rib are mostly used. When the cover is inserted, the end surface is inserted 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 that is disposed of according to its intended use. In order to enable simple and inexpensive recycling, the pipes and pipe ends should be formed from only one and the same easily recyclable material. So that means that the bottom and lid 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, end elements with metal layers are used, which is not compatible with the strict regulations for one-component packaging materials. Only extremely small amounts of plastic and / or sealing wax may be used.
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.From FR 2 219 066 a cardboard box with a circular cylindrical outer surface is known, which is closed at both ends with cardboard lids. As shown in the figure on the basis of the can, these cardboard lids are glued to two second contact surfaces, each with a first contact surface of the jacket. The second contact surfaces form the side surfaces of a channel receiving the jacket end. The closing surface closing the inside of the can is arranged in the inside of the can, away from the jacket end surface. For can end elements, which are provided with outlet openings and as a diffusing membrane for to allow the contents of the can to be dispensed, a scattering membrane arranged in the interior of the can is not desirable because a lid which can be inserted into the can must be used to seal the outlet openings. Functional, usable lids are made of plastic. It is not only the use of another material that is a disadvantage, but also the fact that the distance of the scattering membrane from the end of the jacket must exactly match the depth of the cover. In addition, the spreading material tends to collect residues in the circumferential inner edge of the sealing membrane outside the contents of the can.
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 essentially correspond in shape to the known plastic lids that can be used. However, these usable cardboard lids are too complex to manufacture and cannot guarantee an exact fit against a scattering membrane arranged inside the can, at least not if a lid connecting line is to lie close to the end edge of the jacket.
Die Erfindung hat sich nun die Aufgabe gestellt, einen Rohrabschluss aus Karton auszubilden, der einfach aufgebaut, bzw. hergestellbar 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 forming a tube end made of cardboard, which is simple to set up, or can be produced and is versatile, in particular as a scattering membrane and / or as a cover which can be placed close to a scattering membrane.
Die Lösung der Aufgabe gelingt durch die Verwirklichung der Oberbegriffsmerkmaie zusammen mit den kennzeichnenden Merkmalen des Anspruches 1 und durch die Merkmale des Anspruches 5 oder 8. Bevorzugte Ausführungsformen sind durch Merkmale der abhängigen Ansprüche charakterisiert.The object is achieved by realizing the generic term features together with the characterizing features of claim 1 and by the features of claim 5 or 8. Preferred embodiments are characterized by features of the dependent claims.
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 tubular casing made of cardboard is closed with a terminating element made of cardboard, the end surface of which essentially lies in the plane closing the tubular casing. This means that only one contact surface of the terminating element is connected to a contact surface of the jacket. By dispensing with two contact surfaces of the end element or two second contact surfaces, the connection is simplified and, as can be seen from the tests carried out, nevertheless has sufficient strength. In addition, the end of the pipe, which is flush at the end, can be used as a scattering membrane be formed. A can with such a scattering membrane or any other can can be sealed tightly with a cover which can be put over the can and which is preferably also designed as a pipe closure according to the invention.
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, can be used in a variety of ways and is simply constructed or producible.
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 cross section. In particular, the tubular jacket is wound obliquely to the axis. In order to give the end element greater stability, at least one, preferably circular, bead can be attached in its collar.
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.In order to achieve essentially cylindrical connecting areas or interconnected contact surfaces, a pressing device is provided with at least one radially adjustable pressing surface, which can be pressed against the latter after the contact surfaces have been inserted. When pressing from the inside, at least one, but preferably several, pressing parts with a convex pressing surface must be able to be moved from a feed position with a smaller pressing surface circumference to a pressing position with a larger circumference. When pressing from the outside, at least one, but preferably several, pressed parts with a concave pressing surface must be able to be moved from a feed position with a larger pressing surface circumference to a pressing layer with a smaller circumference. The parts that can be moved into the press position from the outside can be dimensioned such that they form a shoulder-free, closed circumferential line when they abut one another.
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. 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 in such a way that the outside of the collar is flush with the undeformed outside surface of the jacket. The outer surface of the jacket runs. Further details of the invention will become apparent from the following description of exemplary embodiments explained in the drawing.
Es zeigen:Show it:
Fig. l die perspektivische, teilweise geschnittene Darstellung einer erfindungsgemässen Streudose mit aufsetzbarem und abnehmbaren Deckel; Fig.2 Ausschnitte von Schnitten in Achsrichtung durch drei verschiedene1 shows the perspective, partially sectioned illustration of a litter box according to the invention with a lid which can be fitted and removed; Fig.2 sections of cuts in the axial direction by three different
Ausführungsformen.Embodiments.
Fig.3Ausschnitte von Schnitten in Achsrichtung durch drei verschiedeneFig. 3 sections of cuts in the axial direction through three different
Ausführungsformen.Embodiments.
Gemäss der Fig. l 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 2 ist über seine 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 Heissversiegeiung 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 end element 4 arranged in the can end plane, the end surface 4a of which is designed as a scattering membrane with at least one outlet hole 6, which is optionally closed with a removable protective surface 5. If appropriate, the end face according to the invention of the circumferential, annular collar 4b of the end element 4 is designed as an at least partially removable protective membrane. The end face or scattering membrane 2 is connected via its first contact area 4c to the casing 2 of the can, specifically to a second contact area 2c of the casing 2. The two contact surfaces 2c and 4c are preferably connected to one another by means of heat sealing, a pressing device used for this purpose, known per se and therefore not shown, preferably pressing only against the outside, against the collar 4b, in particular in such a way that its outside is flush with the outside of the undeformed Cloak.
Der Dosenboden 5 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.In the embodiment shown, the can base 5 is designed as a cardboard tube closure according to the prior art. The bottom surface 7 lies inside the can and two connecting surfaces 8 are connected to the jacket end. In order to press the two connecting surfaces 8 against the jacket 2, the pressing device must have at least two pressing surfaces.
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. Fig.2 zeigt verschiedene Formgebungen im Verbindungsbereich der ersten und der zweiten Kontaktflächen 2c und 4c bzw. lc 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.Above the can, a cover 3 is shown, which is designed as a pipe closure according to the invention and, for this purpose, preferably comprises a cylindrical cover shell 1 and a closure element with a cover closure surface 3a which is flush against a shell end face and a collar 3b on the outside, but also on the inside of the cover jacket 1 if necessary! The inside diameter of the cover jacket 1 is adapted to the outside diameter of the can. The lid jacket 1 gives the lid 3 a stability which ensures that the lid 3 is firmly seated on the can even after a large number of removal and placement cycles. 2 shows various shapes in the connection area of the first and second contact surfaces 2c and 4c or lc and 3c. Example a) provides that the contact surface 4c of the membrane collar 4b bears against the undeformed can jacket 2 and thus protrudes somewhat from the jacket surface. In order to ensure the same outside radius along the entire can axis, as shown in example b), the can contact surface 2c is pressed somewhat radially inwards when the membrane collar 4b is pressed on, so that the outside thereof is flush with the outside of the can jacket 2. Example c) shows an embodiment in which the can contact surface 2c is pressed together in such a way that the outer surface of a cover 3 attached is flush with the outer surface of the can shell 2.
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. l c und 3c anschliessenden, radial äusseren Bereich 10 im Bereich einer stirnseitigen Dosenabschlussebene. In einem zentralen Bereich 12 liegen die Abschlussflä¬ chen 3a, 4a etwas gegen das Doseninnere versetzt. In einem Übergangsbereich 1 1 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 1 1 vor dem Verbinden mit dem Dosenmantel 2 eine erhöhte Formstabilität und nach dem Verbinden ermöglicht der Übergangsbereich 1 1 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 closure element 4 and the cover 3 have three-part closure surfaces 3a, 4a. The end surface 3a, 4a lies in a radially outer region 10 adjoining the contact surfaces 2c and 4c or lc and 3c in the region of a can end plane on the end face. In a central area 12, the end faces 3a, 4a are slightly offset from the inside of the can. In a transition region 11, the end surfaces 3a, 4a transition from the radial to the central region with an annular partial surface inclined to the can axis. The end faces 3a and 4a are given increased shape stability by the inclined partial areas in the transition area 11 before being connected to the can jacket 2, and after the connection, the transition area 11 together with the central area 12 enables an increase in volume in the can without the end faces becoming Extend 3a, 4a beyond the can end level. Volume changes result from changes in the ambient pressure.
Um zwischen dem Deckel 3 und dem Abschlusselement 4 einen Druckaus¬ gleichsbereich bereitzustellen, liegen die Abschlussflächen 3a, 4a im Über¬ gangsbereich 11 nicht aneinander an. Entsprechend sind die Übergangsberei¬ che 1 1 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.In order to provide a pressure compensation area between the cover 3 and the end element 4, the end faces 3a, 4a do not abut one another in the transition area 11. Correspondingly, the transition regions 11 are arranged radially offset. The pressure equalization area forming a closed cavity makes it easier to remove and put on the cover 3. It may be advantageous if, according to FIG. 3c, the pressure equalization area is enlarged by the outer area 10 of the End element 4 is not arranged at the can end level but rather a little further inside the can than the central area 12.
Die Erfindung ist auf die dargestellten Ausführungsformen nicht einge¬ schränkt. 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 also be designed as a pipe closure according to the invention; the collar, in particular to form a cover according to the invention, can also be pressed against the inside of the casing and connected to it.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Karton-Rohrabschluss, insbesondere Deckel oder Dose, bzw. Streudose, mit einem, um eine Achse angeordneten, geschlossenen, metallfreien Karton- Mantel (1 ,2) und einem mit dem Mantel ( 1 ,2) dicht verbundenen, metallfreien Karton-Abschlusselement (3 ,4) , dessen Abschlussfläche (3a, 4a) quer zur Achse angeordnet ist, dadurch gekennzeichnet, dass die Abschlussfläche (3a, 4a) wenigstens teilweise in der Rohrabschlussebene liegt und einen ringförmigen Kragen (3b, 4b) aufweist, der mit seiner ersten ringförmigen Kontaktfläche (3c, 4c) an einer zweiten ringförmigen Kontaktfläche ( 1 ,2) des Mantels (1,2) anliegt.1. Carton tube end, in particular lid or box, or scatter box, with a closed, metal-free cardboard jacket (1, 2) arranged around an axis and a metal-free cardboard box tightly connected to the jacket (1, 2) End element (3, 4), the end surface (3a, 4a) of which is arranged transversely to the axis, characterized in that the end surface (3a, 4a) lies at least partially in the tube end plane and has an annular collar (3b, 4b) which is connected to its first annular contact surface (3c, 4c) abuts a second annular contact surface (1, 2) of the jacket (1, 2).
2. Karton-Rohrabschluss nach Anspruch 1 , dadurch gekennzeichnet, dass die erste Kontaktfläche (3c, 4c) am Endbereich der Aussenfläche, oder gegebenenfalls der Innenfläche, des Mantels (1 ,2) anliegt und - vorzugsweise mittels Heissversiegeiung - damit verbunden ist.2. Cardboard tube closure according to claim 1, characterized in that the first contact surface (3c, 4c) bears against the end region of the outer surface, or possibly the inner surface, of the casing (1, 2) and is connected to it, preferably by means of heat sealing.
3. Karton-Rohrabschluss nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abschlussfläche (3a,4a) einen peripheren Bereich (10) , der in der Rohrabschiussebene liegt, einen zentralen Bereich (12) , der gegen das Rohrinnere versetzt ist, und einen Übergangsbereich (1 1) aufweist, der den zentralen und den peripheren Bereich (12 bzw. 10) - vorzugsweise gegen die Rohrabschlussebene hin schräg nach aussen verlaufend - miteinander verbindet.3. Cardboard tube termination according to claim 1 or 2, characterized in that the end face (3a, 4a) has a peripheral area (10) which lies in the tube closing plane, a central area (12) which is offset against the tube interior, and has a transition region (11) which connects the central and peripheral regions (12 or 10) to one another, preferably running obliquely outwards towards the pipe end plane.
4. Karton-Rohrabschluss nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass im Bereich der ersten (3c, 4c) und/oder zweiten ( lc,2c) Kontaktfläche im Mantel (1 ,2) und/oder im Kragen (3b, 4b) mindestens eine, vorzugsweise kreisförmige, Sicke angebracht ist.4. Cardboard tube closure according to one of claims 1 to 3, characterized in that in the region of the first (3c, 4c) and / or second (lc, 2c) contact surface in the jacket (1, 2) and / or in the collar (3b , 4b) at least one, preferably circular, bead is attached.
5. Dose, mit mindestens einem Karton-Rohrabschluss nach einem der Ansprüche5. box, with at least one cardboard tube end according to one of the claims
1 bis 4.1 to 4.
6. Dose nach Anspruch 5 , dadurch gekennzeichnet, dass die Abschlussfläche (4a) in einer Dosenabschlussebene liegt -und als Streumembran mit mindestens einer, insbesondere von einer entfernbaren Schutzfläche (5) abgedeckten, Austrittsöffnung (6) ausgebildet ist. 6. Can according to claim 5, characterized in that the end surface (4a) lies in a can end plane - and is designed as a scattering membrane with at least one outlet opening (6), in particular covered by a removable protective surface (5).
7. Dose nach Anspruch 5, dadurch gekennzeichnet, dass die Abschlussfläche7. Box according to claim 5, characterized in that the end face
(3a, 4a) in einer Dosenabschlussebene liegt und als dichter Dosenboden bzw. Dosenabschluss ausgebildet ist.(3a, 4a) lies in a can end plane and is designed as a tight can bottom or can end.
8. Dose nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass der8. Can according to one of claims 5 to 7, characterized in that the
Kragen (4b) so gegen die Dosenachse zusammengepresst ist, dass seine Aussenseite bündig an die Aussenseite des unverformten Mantels (2) anschliesst, oder gegebenenfalls die Aussenseite eines Deckels (3) bündig an die Aussenseite des unverformten Mantels (2) anschliesst (Fig.2b, 2c) .Collar (4b) is pressed against the can axis in such a way that its outside is flush with the outside of the undeformed casing (2) or, if necessary, the outside of a lid (3) is flush with the outside of the undeformed casing (2) (Fig. 2b , 2c).
9. Dosendeckel , mit mindestens einem Karton-Rohrabschluss nach einem der9. Can lid, with at least one cardboard tube end according to one of the
Ansprüche 1 bis 4.Claims 1 to 4.
10. Dosendeckel nach Anspruch 7, dadurch gekennzeichnet, dass sich der Kragen10. Can lid according to claim 7, characterized in that the collar
(3b) in Achsrichtung über den ganzen Mantel erstreckt (Fig.1 ,2c).(3b) extends in the axial direction over the entire jacket (Fig.1, 2c).
1 1. Dose mit Dosendeckel, die beide einen Karton-Rohrabschluss nach Anspruch1 1. Can with can lid, both a cardboard tube end according to claim
3 oder 4 aufweisen, dadurch gekennzeichnet, dass die Übergangsbereiche (1 1) der beiden Karton-Rohrabschlüsse so gegeneinander versetzt sind, dass zwischen den Dosen-Abschlusselement (4a) und dem Deckel- Abschlusselement (3a) ein geschlossener, einen Druckausgleichsbere ich bildender Hohlraum (13) gebildet ist. 3 or 4, characterized in that the transition areas (1 1) of the two cardboard tube ends are offset from one another in such a way that between the can end element (4a) and the cover end element (3a) there is a closed cavity which forms a pressure compensation area (13) is formed.
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 true EP0912403A1 (en) 1999-05-06
EP0912403B1 EP0912403B1 (en) 2000-08-09

Family

ID=8222914

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

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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)

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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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Also Published As

Publication number Publication date
CA2257956A1 (en) 1997-12-24
EP0912403B1 (en) 2000-08-09
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

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