EP1608561B1 - Closing device for a container consisting of laminated paper or cardboard - Google Patents
Closing device for a container consisting of laminated paper or cardboard Download PDFInfo
- Publication number
- EP1608561B1 EP1608561B1 EP04720567A EP04720567A EP1608561B1 EP 1608561 B1 EP1608561 B1 EP 1608561B1 EP 04720567 A EP04720567 A EP 04720567A EP 04720567 A EP04720567 A EP 04720567A EP 1608561 B1 EP1608561 B1 EP 1608561B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- closure device
- ring
- deflector
- cutting element
- 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
Links
- 239000011111 cardboard Substances 0.000 title claims description 6
- 239000011087 paperboard Substances 0.000 title claims description 4
- 238000005520 cutting process Methods 0.000 claims abstract description 57
- 230000035515 penetration Effects 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000002985 plastic film Substances 0.000 abstract description 4
- 229920006255 plastic film Polymers 0.000 abstract description 4
- 239000002648 laminated material Substances 0.000 abstract 1
- -1 Polyethylene Polymers 0.000 description 11
- 239000004698 Polyethylene Substances 0.000 description 11
- 229920000573 polyethylene Polymers 0.000 description 11
- 239000000123 paper Substances 0.000 description 10
- 238000004080 punching Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Images
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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
- B65D5/746—Spouts formed separately from the container
- B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
- B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening
Abstract
Description
Die vorliegende Erfindung betrifft eine über einer durchstossbaren Stelle eines geschlossenen Behältnisses aus laminiertem Papier oder Karton mit mindestens einer Schicht aus Kunststofffolie anbringbare Verschlussvorrichtung aus Kunststoff mit den Merkmalen des Oberbegriffes des Patentanspruches 1. Das Dokument
Solche Verschlussvorrichtungen bestehen aus einem spundförmigen Unterteil mit zylindrischem Ausgussstutzen, der mit dem Behältnis verbunden oder verbindbar ist, und einer Schraubkappe, die auf den Unterteil aufschraubbar ist, sowie einem zylindrischen Durchstosser, der in axialer Richtung beidseitig offen ist und im Unterteil schraubenartig verschiebbar gelagert ist, wobei in der Schraubkappe Mittel vorhanden sind, die bei der erstmaligen Abschraubbewegung der Schraubkappe den Durchstosser nach unten bewegen, wobei der zylindrische Durchstosser einen Ring mit Aussengewinde und mindestens ein zum Behältnis gerichtetes Schneidelement aufweist.Such closure devices consist of a bung-shaped lower part with a cylindrical spout, which is connected to the container or connectable, and a screw cap which can be screwed onto the lower part, and a cylindrical piercer, which is open on both sides in the axial direction and is mounted helically displaceable in the lower part in which there are means in the screw cap which, when the screw cap is screwed off for the first time, move the piercer downwards, the cylindrical piercer having an externally threaded ring and at least one cutting element directed towards the receptacle.
Solche Verschlussvorrichtungen werden auf die Behältnisse aus laminiertem Papier oder Karton aufgeschweisst oder aufgeklebt. Die hierbei interessierenden Behältnisse aus laminiertem Papier haben eine kubische Grundform und dienen vor allem der Verpackung liquider Produkte, insbesondere Produkte der Lebensmittelindustrie. Von aussen nach innen weisen entsprechend solche laminierten Papiere oder Kartons die folgende Schichtreihenfolge auf:
- 1. Polyäthylenfilm
- 2. Karton
- 3. Polyäthylenschicht
- 4. Aluminiumschicht
- 5. Polyäthylenschicht
- 1. Polyethylene film
- 2. Carton
- 3. Polyethylene layer
- 4. Aluminum layer
- 5. Polyethylene layer
In diesem mehrlagigen Material, das üblicherweise laminiertes Papier genannt wird, ist bei jenen Behältnissen, die mit einer Verschlussvorrichtung der hier interessierenden Art versehen sind, im laminierten Papier eine Sollöffnungsstelle angebracht. Bei der Sollöffnungsstelle handelt es sich um eine vorgestanzte Oeffnung, bei der normalerweise die oberen drei Schichten durchtrennt sind, während die unteren zwei Schichten aus Aluminium und Polyäthylen vollständig intakt sind.In this multi-layered material, which is usually called laminated paper, in those containers provided with a shutter device of the kind of interest here, a target opening location is provided in the laminated paper. The target opening is a pre-punched opening that normally cuts through the top three layers, while the bottom two layers of aluminum and polyethylene are completely intact.
Die Verschlussvorrichtung aus Kunststoff durchtrennt bei der Abschraubbewegung der Schraubkappe mittels ihrem zylindrischen Durchstosser das laminierte Papier exakt im Bereich der Vorstanzung.The closure device made of plastic cuts through the unscrewing movement of the screw cap by means of its cylindrical Pierced the laminated paper exactly in the area of the pre-punching.
Die exakte Ausrichtung des zylindrischen Ausgussstutzens über der Vorstanzung, so dass der Durchstosser exakt in der linienförmigen Vorstanzung zu laufen kommt, ist meist illusorisch. Tatsächlich genügt es, wenn der zylindrische Durchstosser bei seiner drehenden Abwärtsbewegung mit seinem Schneidelement diese Vorstanzung kreuzt, worauf üblicherweise das Schneidelement in der Vorstanzung verbleibt. Im Normalfall durchstösst dabei die Spitze des Schneidelementes die Polyäthylenschicht und schneidet diese danach problemlos durch. Bei einem gewissen Prozentsatz jedoch gelingt dies erstaunlicherweise nicht. Dies hat sicherlich mit der Zähigkeit, Elastizität und Dehnfähigkeit der Polyäthylenfolie zu tun, doch dies allein würde dieses Phänomen nicht erklären. Entsprechend ist man auf theoretische Ueberlegungen angewiesen, um dieses Problem zu erklären.The exact alignment of the cylindrical spout over the pre-punched, so that the piercer comes exactly to run in the linear pre-punching, is usually illusory. In fact, it is sufficient if the cylindrical piercer with its rotating downward movement with its cutting element crosses this pre-punching, whereupon the cutting element usually remains in the pre-punching. In the normal case, the tip of the cutting element pierces the polyethylene layer and then cuts through it without problems. Surprisingly, at a certain percentage, however, this does not succeed. This certainly has to do with the toughness, elasticity and extensibility of the polyethylene film, but this alone would not explain this phenomenon. Accordingly, one has to rely on theoretical considerations to explain this problem.
Die Anmelderin nimmt an, dass dieses Problem darauf zurückzuführen ist, dass einerseits die Vorstanzungen oftmals ungenügend sind und folglich lediglich die äussere Polyäthylenschicht durchtrennt wird, während die relativ dicke Kartonschicht nur ungenügend getrennt wird und vermutlich die mittlere Polyäthylenschicht, falls eine solche vorhanden ist, unbeschädigt bleibt. Dies hat zur Folge, dass das Schneidelement mit seiner Spitze zuerst in die faserige Karton- oder Papierschicht eindringt und dabei diese Fasern sich sowohl an der Spitze als auch an der Schneide zum Teil ansammeln und damit deren Perforier- und Schneidwirkung erheblich vermindern. Dies führt dazu, dass die unteren Polyäthylenschichten mehr und mehr gedehnt und gestreckt werden und praktisch über die durch die Fasern geschützte Schneide hinweggleiten. Dies führt dazu, dass immer wieder das laminierte Papier unvollständig oder in einigen Fällen sogar praktisch gar nicht durchtrennt wird, wodurch der Konsument das Behältnis gar nicht entleeren kann oder bei der Entleerung der Ausgussstrahl vermindert und abgelenkt austritt und entsprechend der Inhalt teilweise verschüttet wird.The Applicant believes that this problem is due to the fact that on the one hand the pre-cuts are often insufficient and consequently only the outer polyethylene layer is severed, while the relatively thick cardboard layer is insufficiently separated and presumably the middle polyethylene layer, if present, undamaged remains. As a consequence, that the cutting element with its tip first penetrates into the fibrous cardboard or paper layer and thereby these fibers accumulate both at the top and on the cutting part and thus significantly reduce their perforation and cutting action. As a result, the lower polyethylene layers are stretched and stretched more and more and practically slide over the cutting edge protected by the fibers. As a result, over and over again, the laminated paper is incompletely or in some cases even not cut at all, as a result of which the consumer can not empty the container or if the pouring stream is emptied and deflected during emptying and the contents are partially spilled.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Verschlussvorrichtung der eingangs genannten Art derart zu verbessern, dass das erwähnte Problem weitgehend nicht mehr auftritt.It is therefore the object of the present invention to improve a closure device of the type mentioned in such a way that the problem mentioned largely no longer occurs.
Diese Aufgabe löst eine Verschlussvorrichtung mit den Merkmalen des Patentanspruches 1.This object is achieved by a closure device having the features of
Hierbei macht die Erfindung von der Erkenntnis Gebrauch, dass eine gedehnte und gestreckte Kunststofffolie unter Spannung sich wesentlich leichter perforieren lässt als eine schlaffe Folie. In den Fällen, in denen die Verschlussvorrichtung nicht durch das mindestens eine Schneidelement direkt von Anfang an durchstossen und geschnitten wird, wird die nicht durchtrennte Folie gedehnt und gereckt und kommt im gespannten Zustand auf den der Schneide nachfolgend und tiefer liegenden, mindestens einen Perforierzahn zum Aufliegen und wird nun mit äusserst grosser Sicherheit durchstossen. Dabei reisst die Folie und der Schneidvorgang setzt sich wie erwünscht fort.Here, the invention makes use of the knowledge that a stretched and stretched plastic film under tension can be perforated much easier than a flabby film. In cases where the Closure device is not pierced and cut by the at least one cutting element directly from the beginning, the untrimmed film is stretched and stretched and comes in the tensioned state on the cutting edge below and lower, at least one perforating tooth to rest and is now with great certainty pierce. The film breaks and the cutting process continues as desired.
Weitere vorteilhafte Ausgestaltungsformen des Erfindungsgegenstandes gehen aus den abhängigen Ansprüchen hervor und deren Bedeutung und Wirkungsweise ist in der nachfolgenden Beschreibung unter Hinweis auf die anliegenden Zeichnungen erläutert.Further advantageous embodiments of the subject invention will become apparent from the dependent claims and their meaning and effect is explained in the following description with reference to the accompanying drawings.
Es zeigt:
Figur 1- eine erste Ausführungsform einer Verschlussvorrichtung in einem vertikalen diametralen Schnitt, wobei die Verschlussvorrichtung im montierten Zustand vor der Erstverwendung gezeigt ist, während
Figur 2- ebenfalls einen vertikalen Querschnitt der Verschlussvorrichtung im Zustand der Verwendung bei abgeschraubter Schraubkappe zeigt.
Figur 3- zeigt eine zweite Ausführungsform einer Verschlussvorrichtung im nicht montierten Zustand in einer Seitenansicht.
Figur 4- zeigt eine Abwicklung eines Durchstossers in einer ersten bevorzugten Ausführungsform und
- Figur 5
- eine eben solche Abwicklung einer zweiten vorteilhaften Ausgestaltungsform.
- FIG. 1
- a first embodiment of a closure device in a vertical diametral section, wherein the closure device is shown in the assembled state before the first use, while
- FIG. 2
- also shows a vertical cross-section of the closure device in the state of use with unscrewed screw cap.
- FIG. 3
- shows a second embodiment of a closure device in the unassembled state in a side view.
- FIG. 4
- shows a development of a puncture in a first preferred embodiment and
- FIG. 5
- a just such a settlement of a second advantageous embodiment.
Während die
In den
Die erfindungsgemässe Verschlussvorrichtung umfasst die drei Hauptteile, nämlich ein spundartiger Unterteil 2, in dem ein Durchstosser 3 schraubenartig abwärts bewegbar ist, und eine Schraubkappe 4, welche sowohl die Funktion hat, den spundartigen Unterteil 2 zu verschliessen als auch während des Abschraubvorganges bei der Erstöffnung den Durchstosser 3 in Drehbewegung zu setzen und dabei zu bewirken, dass sich der Durchstosser nach unten bewegt.The closure device according to the invention comprises the three main parts, namely a bung type
Das eigentliche Behältnis ist lediglich teilweise angedeutet und mit dem Buchstaben B bezeichnet. Das Behältnis besteht, wie bereits erwähnt, aus einem so genannten laminierten Papier und besitzt eine Vorstanzung V. Die Vorstanzung V sollte optimaler Weise so gelegt sein, dass sie exakt konzentrisch in die Öffnung des spundartigen Unterteiles zu liegen kommt. Gleichzeitig sollte die Vorstanzung wiederum in optimaler Weise so tief angebracht sein, dass lediglich die innersten beiden Lagen aus Aluminiumfolie und Polyäthylenfilm unverletzt bestehen bleiben. Auf diesem Behältnis B aus mehrlagigem laminierten Papier ist die Verschlussvorrichtung aufgeschweisst oder aufgeklebt. Hierzu weist der spundartige Unterteil 2 einen Flansch 21 auf, der am unteren Rand eines zylindrischen Stutzens 20 angeformt ist. Dieser Ausgussstutzen 20 hat ein Innengewinde 22 sowie ein Aussengewinde 23 und mehrere unterhalb dem Aussengewinde 23 angeformte Rückhaltenocken 24. In dem erwähnten Innengewinde 22 läuft der Durchstosser 3, der aus einem zylindrischen Ring 31 mit Aussengewinde 32 besteht, und welches ein Schneidelement 33 und einen Abweiser 34 aufweist. Dieser Durchstosser 3 wird, wie erwähnt, mittels der Schraubkappe 4 betätigt. Hierzu weist die Schraubkappe 4 unterhalb ihrer Deckfläche 40 einen Mitnehmer 44 auf, der formschlüssig an der Innenwand des Durchstossers 3 eingreift. Befindet sich der Durchstosser 3 nach der Erstöffnung in seiner Tiefstlage, wie in
Der Durchstosser 3 besteht, wie bereits erwähnt, aus einem zylindrischen Ring 31, an dessen unteren Verlängerung ein oder mehrere Schneidelemente 33 angeformt sind. Zusätzlich ist an diesem Ring 31 gegebenenfalls ein Abweiser 34 vorhanden. In diesem Aspekt unterscheiden sich die beiden Verschlussvorrichtungen 1 gemäss den
In der
In der Ausführungsform gemäss der
Die beiden hier dargestellten Ausführungsformen zeigen somit, dass der zylindrische Durchstosser sowohl mit einem als auch mit mehreren Schneidelementen ausgerüstet sein kann. Selbstverständlich wäre es auch denkbar, mehr als einen Perforierzahn vorzusehen, etwa deren zwei. Bei einer Ausführung gemäss der
Bei den Ausführungsformen gemäss der
- 11
- Verschlussvorrichtungclosure device
- 22
- Unterteillower part
- 33
- Durchstosserpiercing
- 44
- Schraubkappescrew cap
- 2020
- Ausgussstutzen zylindrischSpout cylindrical
- 2121
- Flanschflange
- 2222
- Innengewindeinner thread
- 2323
- Aussengewindeexternal thread
- 2424
- RückhaltenockenRetaining cams
- 3131
- Ring zylindrischRing cylindrical
- 3232
- Aussengewindeexternal thread
- 3333
- Schneidelementecutting elements
- 3434
- Abweiserdeflector
- 3535
- absteigende Flankedescending flank
- 3636
- vordere Spitzefront tip
- 3737
- Schneidekantecutting edge
- 3838
- Perforierzahnperforating
- 3939
- Erhebungsurvey
- 4040
- Deckflächecover surface
- 4141
- Mantelwandshell wall
- 4343
- konzentrische Ringwandconcentric ring wall
- 4444
- Mitnehmertakeaway
- 4545
- Garantiebandguarantee strip
- 4646
- SollbruchstellenbrückenWeakened bridges
- BB
- Behältniscontainer
- Ee
- Eindringvorrichtungintrusion device
- SS
- Schneidrichtungcutting direction
- VV
- Vorstanzungprecut
Claims (10)
- Closure device (1) that can be provided over a pierceable point of a closed container (B), the container being made of laminated paper or cardboard and comprising at least one layer of plastics film, the device being made of plastics material and comprising a stopper-like lower part (2) with a cylindrical outlet connecting piece (20), which is connected or can be connected to the container, and a screw cap (4) which can be screwed onto the lower part (2), and a cylindrical piercing element (3) which is open on both sides in the axial direction and is displaceably mounted in the manner of a screw in the lower part, means (44) being provided in the screw cap (4) which move the piercing element (3) downwards in a helical manner on the first unscrewing movement of the screw cap, the cylindrical piercing element (3) comprising a ring (31) with external thread (32) and at least one cutting element (33) directed toward the container, wherein in the cutting direction (S) at least one perforating tooth (38) is arranged so as to be successive to a cutting region of the cutting element (33), characterised in that said at least one perforating tooth (38) is successive with respect to the penetrating direction (E) of the leading tip (36) of the cutting element (33), which tooth, in the event that the at least one plastics film layer is not cut through, pierces the extended and stretched plastics film layer.
- Closure device according to Claim 1, characterised in that the cylindrical piercing element (3) comprises only one cutting element (33) and the at least one perforating tooth (38) is arranged on the edge (35) following the foremost tip (36) and descending toward the ring.
- Closure device according to Claim 2, characterised in that the at least one perforating tooth (38) is arranged on an elevation (39) on the descending edge (35).
- Closure device according to Claim 1, characterised in that the cylindrical piercing element (3) comprises a plurality of cutting elements (33), at least one cutting element comprising at least one perforating tooth (38) on the edge (35) following the foremost tip (36) and descending toward the ring.
- Closure device according to Claim 4, characterised in that at least two cutting elements are, with their respective foremost tip (36), arranged at an at least approximately equal distance (N) from the nearest edge of the ring (31) in each case.
- Closure device according to Claim 1, characterised in that the cylindrical piercing element (3) comprises a deflector (34) following the at least one cutting element (33) in the cutting direction.
- Closure device according to Claim 6, characterised in that the deflector (34) is combined with a cutting element (33) and is formed as a configuration of the descending edge (35).
- Closure device according to Claim 7, characterised in that the at least one perforating tooth (38) is arranged on the deflector (34).
- Closure device according to Claim 5, characterised in that there is a separate deflector (34) formed on the ring following the at least two cutting elements (33) in the cutting direction, the deflector comprising a perforating tooth (38) at the point most remote from the nearest edge of the ring (31).
- Closure device according to any one of Claims 6 to 9, characterised in that the height of the deflector (34) is lower in the direction of penetration (E) than the height of all of the cutting elements (33).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH479032003 | 2003-03-21 | ||
CH4792003 | 2003-03-21 | ||
PCT/CH2004/000150 WO2004083055A1 (en) | 2003-03-21 | 2004-03-15 | Closing device for a container consisting of laminated paper or cardboard |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1608561A1 EP1608561A1 (en) | 2005-12-28 |
EP1608561B1 true EP1608561B1 (en) | 2009-06-17 |
Family
ID=32996989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04720567A Expired - Lifetime EP1608561B1 (en) | 2003-03-21 | 2004-03-15 | Closing device for a container consisting of laminated paper or cardboard |
Country Status (9)
Country | Link |
---|---|
US (1) | US20060261028A1 (en) |
EP (1) | EP1608561B1 (en) |
JP (1) | JP2006520725A (en) |
AT (1) | ATE433920T1 (en) |
AU (1) | AU2004222221A1 (en) |
DE (1) | DE502004009610D1 (en) |
RU (1) | RU2337864C2 (en) |
WO (1) | WO2004083055A1 (en) |
ZA (1) | ZA200507565B (en) |
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-
2004
- 2004-03-15 RU RU2005132392/12A patent/RU2337864C2/en not_active IP Right Cessation
- 2004-03-15 EP EP04720567A patent/EP1608561B1/en not_active Expired - Lifetime
- 2004-03-15 WO PCT/CH2004/000150 patent/WO2004083055A1/en active Application Filing
- 2004-03-15 JP JP2006504155A patent/JP2006520725A/en active Pending
- 2004-03-15 DE DE502004009610T patent/DE502004009610D1/en not_active Expired - Lifetime
- 2004-03-15 AT AT04720567T patent/ATE433920T1/en not_active IP Right Cessation
- 2004-03-15 US US10/549,344 patent/US20060261028A1/en not_active Abandoned
- 2004-03-15 AU AU2004222221A patent/AU2004222221A1/en not_active Abandoned
- 2004-03-15 ZA ZA200507565A patent/ZA200507565B/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20060261028A1 (en) | 2006-11-23 |
DE502004009610D1 (en) | 2009-07-30 |
ZA200507565B (en) | 2007-03-28 |
JP2006520725A (en) | 2006-09-14 |
WO2004083055A1 (en) | 2004-09-30 |
EP1608561A1 (en) | 2005-12-28 |
ATE433920T1 (en) | 2009-07-15 |
RU2005132392A (en) | 2007-04-27 |
AU2004222221A1 (en) | 2004-09-30 |
RU2337864C2 (en) | 2008-11-10 |
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