EP1984261B1 - Closing device comprising a non-continuously circular cutting ring - Google Patents

Closing device comprising a non-continuously circular cutting ring Download PDF

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Publication number
EP1984261B1
EP1984261B1 EP07700129A EP07700129A EP1984261B1 EP 1984261 B1 EP1984261 B1 EP 1984261B1 EP 07700129 A EP07700129 A EP 07700129A EP 07700129 A EP07700129 A EP 07700129A EP 1984261 B1 EP1984261 B1 EP 1984261B1
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EP
European Patent Office
Prior art keywords
cutting ring
bottom part
closing cap
ring
cutting
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.)
Active
Application number
EP07700129A
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German (de)
French (fr)
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EP1984261A1 (en
Inventor
Fritz Seelhofer
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.)
Belcap Switzerland AG
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Belcap Switzerland AG
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 Belcap Switzerland AG filed Critical Belcap Switzerland AG
Priority to PL07700129T priority Critical patent/PL1984261T3/en
Publication of EP1984261A1 publication Critical patent/EP1984261A1/en
Application granted granted Critical
Publication of EP1984261B1 publication Critical patent/EP1984261B1/en
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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
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B65D51/28—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials
    • B65D51/2807—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials the closure presenting means for placing the additional articles or materials in contact with the main contents by acting on a part of the closure without removing the closure, e.g. by pushing down, pulling up, rotating or turning a part of the closure, or upon initial opening of the container
    • B65D51/2814—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials the closure presenting means for placing the additional articles or materials in contact with the main contents by acting on a part of the closure without removing the closure, e.g. by pushing down, pulling up, rotating or turning a part of the closure, or upon initial opening of the container the additional article or materials being released by piercing, cutting or tearing an element enclosing it
    • B65D51/2828—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials the closure presenting means for placing the additional articles or materials in contact with the main contents by acting on a part of the closure without removing the closure, e.g. by pushing down, pulling up, rotating or turning a part of the closure, or upon initial opening of the container the additional article or materials being released by piercing, cutting or tearing an element enclosing it said element being a film or a foil
    • B65D51/2835—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials the closure presenting means for placing the additional articles or materials in contact with the main contents by acting on a part of the closure without removing the closure, e.g. by pushing down, pulling up, rotating or turning a part of the closure, or upon initial opening of the container the additional article or materials being released by piercing, cutting or tearing an element enclosing it said element being a film or a foil ruptured by a sharp element, e.g. a cutter or a piercer
    • 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
    • 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
    • B65D2205/00—Venting means

Definitions

  • This invention relates to a multi-part closure device made of plastic, consisting of closure cap, lower part and not continuously circular cutting ring as a central element, and which can be attached above a desired opening point of a closed container or on a bottle neck.
  • containers For storage of flowable media, various containers are available in the market, in which before opening a membrane, film or the packaging wall itself must be pounded before the liquid medium can be removed from the container.
  • Such containers may be soft packaging made of multilayer cardboard or films, to which a closure device is glued or welded. But it can also be bottles with a threaded or Aufschnappstutzen, in which a film on top of the neck closes the bottle, and then this film must be cut.
  • Typical closure devices for such types of packaging have a lower part with a cylindrical spout and external thread and a lower edge flange for attachment to the soft pack
  • the closure lid Before the contents can be removed from the container, the closure lid must be unscrewed from the base to the container wall in the area To cut through the pouring spout.
  • the opening of the container wall at the Sollö Stammsstelle can be done by finger pressure on the integrated piercing, but has the disadvantage that the Ausgiesseigenschaften such closures are bad and that the risk of contamination of the liquid is large because the finger comes into contact with the liquid.
  • Another type of opening of the container wall is that a piercer is pushed down through the packaging material with the aid of the closure cap.
  • the closure must be complete first are turned down to move down the piercer mounted in the spout of the base, whereby the soft package is opened.
  • the cap In order to pour out the liquid content, in a third step, the cap must be completely unscrewed.
  • This opening mechanism has not enforced in practice because it is too complicated to handle.
  • piercers are known which cooperate interactively with a closure cap in such a way that, when the screw cap is unscrewed, the piercer is simultaneously moved in such a way that it is conveyed downwards and pierces the packaging wall. The severed part of the package wall sticks to the piercer because it has to be adhered to the package wall. The piercer itself remains in the cap and is also transported out when opening. By repeatedly opening and closing the cap can easily take place multiple contamination of the contents.
  • the assembly of this device is delicate and expensive. Since the piercing must be glued to the container wall, the correct dosage of the adhesive is crucial for the successful first opening of the packaging material.
  • Soft packagings have a pre-punched target opening point in the area of the puncture, so that the piercer enables complete transection with little effort.
  • This delicate stamping is often carried out too small, whereby the force required to apply the piercing, is very large.
  • the thread on the cylindrical base and on the inner surface of the shell wall of the cap must strong, ie be equipped with large thread depth, which requires a more stable construction with increased wall thickness and thus increased material requirements.
  • the force required for the first actuation of the closure cap is therefore so great because the entire force for the translational axial movement of the penetrator is applied only by the rotational movement of the closure cap.
  • the internal thread on the closure neck is softened.
  • the piercer is first pressed by elements which are mounted at the bottom of the lid of the cap when it is screwed down so that a cutting member pierces an underlying film and then the piercing is still rotated. Until the rotation is completed and the film Meanwhile, the cap has unscrewed from the nozzle thread and can be removed.
  • the cap of the piercer because yes presses the cap with the elements on its underside of the lid when screwing on the piercing, initially pushed a bit further down. This requires a corresponding effort when first screwing the closure and is objected to by the consumer as unpleasant.
  • the object of the present invention is to provide on the one hand a closure device in which the force for opening is lower, and on the other hand, the object of the invention, a very accurate, sharp, knife-like cutting of the soft pack or film on a container neck in the area To guarantee the target opening point, and further it is an object of the invention, at any time to guarantee a regular, laminar pouring behavior of the liquid ingredient. Finally, it is an object of the invention, with such a closure device, to be able to meter a separate substance, also a sensitive substance, into a container contents by opening.
  • FIG. 1 shows the upper part, the cap 2, viewed in a perspective view obliquely from below. It consists of the closure cap cover 27 and the shell wall 17.
  • the inner cap cap 27 is an axially extending driving cam 16, which corresponds in its geometry with the recess 6 on the cutting ring 1, said indentation 6 interrupts the otherwise circular cutting ring 1, so that one of a non-circular circular cutting ring 1 can speak.
  • the driving cam 16 engages positively in the indentation 6 and thus lies with its inner side against the outer wall 30 of the cutting ring 1.
  • the driver cam 16 can also act within the cylindrical cutting ring 1 against its inner wall 8 as a stop on the indentation 6.
  • the core of the closure device according to the invention is the cutting ring 1, which in FIG. 2 is shown in a perspective view seen obliquely from below.
  • the cylindrical cutting ring 1 is open at the top and bottom in the axial direction and has, as an important feature, a recess 6 which extends in the axial direction over the entire height of the cutting ring 1. At this point it interrupts the cutting ring so that it is not completely circular.
  • This indentation 6 forms the later discharge of the contents of the package a ventilation channel 26 and it cooperates with the driving cam 16 such that it acts either as a driver when it engages in the recess 6, or as a stop when the driving cam 16 from the inside of the ring 1 abuts the indentation 6.
  • the cylindrical cutting ring 1 has, as a further important feature, a sharp cutting edge 4, which forms an obtuse angle with the lower edge 29 of the cutting ring 1. On the function of the cutting edge 4 and the subsequent thereto in the horizontal direction guide grooves 7 will be discussed below.
  • helical guide segments 5 are formed, which cooperate with the integrally formed on the cylindrical spout 9 guide cam sections 13 and engage each other.
  • the lower part 3 shows the lower part 3 of the inventive Closing device with spout 9 and aligned integrally formed on the lower edge of the threaded or Aufprellflansch 10 seen in a perspective view obliquely from above.
  • the flange 10 may also be formed flat, so that the attachment either by welding or sticking to the outside or inside of a soft pack, in the latter case, the lower part 3 passes through the existing opening from below , In these two variants, a separate membrane or foil is then provided which is to be cut.
  • the lower part 3 can also be an integral part of the container. In this case, the lower part 3 thus corresponds to a correspondingly designed container neck, for example a bottle.
  • the cylindrical neck 9 has on its outer side an external thread 12 which cooperates with the internal thread 18 of the closure cap 2, so that the cylinder neck 9 sealingly closed with the cap 2 and can also be opened again by the consumer on the jacket wall 17 rotates.
  • the driver cam 16 acts on the non-continuous circular cutting ring 1 in such a way that it is rotated downward in a helical movement.
  • the guide segments 5 slide on the existing on the cylindrical inner wall 14 guide cam portions 13, which is not a continuous, continuous thread, whereby the friction is greatly reduced.
  • this guide curve sections 13 Another advantage of this guide curve sections 13 is that the lower part 3 can be removed from the mold with offset cores in an injection mold, whereby sharp edges and thus a more accurate fit with the cutting ring 1 can be realized on the guide curve sections 13, since the edges are not as in other solutions be pulled long by compulsory removal.
  • FIG. 4 are important features of the cutting ring 1 shown in a perspective detail view obliquely from below.
  • the axial indentation 6 illustrates in this illustration their two areas of action, namely the one attack respectively. Mitcalmings and a ventilation duct 26 during the pouring of the contents of a with this closure device equipped and opened packaging.
  • the indentation 6 also has the advantage that when scanning in the assembly process always a unique position of the ring 1 is given
  • FIG. 5 shows the cutter ring 1 horizontally seen from the side with a detailed view of the sharp cutting edge 4.
  • the cutting edge 4 is solved differently than in known systems by the cutting angle 21 is formed greater than 90 °, which guarantees an extremely stable cutting process.
  • the cutting ring 1 is moved down in a helical manner by means of the driving cam 16.
  • the lowest, acute corner edge 31 scratching a packaging material or a film and dives with increasing rotation in the packaging material or the film and pierces this or the same.
  • the sharp edge 4 moves along the packaging material or the film, which means a significant force reduction during the opening process, in contrast to prior art solutions, because it does not need a particularly large in any phase of the cutting process Force even a particularly high torque to be built.
  • the cutting edge 4 descending in a helical motion is comparable to a traveling knife and causes the sharp edge 4 to cut continuously with a new, fresh and therefore sharp spot the packaging material or the film easily and with little force, thereby producing a coarse Fanning the interface is avoided and a clean cut results.
  • the inventive cutting system causes an overall greatly reduced effort when opening, ie when cutting a Packungsstoffes or a film, wherein the splice of a glued on a composite pack of brick carton closure device is considerably less burdened and consequently the risk of detachment of the same from the pack is minimized.
  • the closure device according to the invention can be realized as a stable, but lighter construction with reduced wall thicknesses, which corresponds to a saving of 1 to 3 grams per unit. At a production of 10 6 - 10 9 Each year, this results in material savings in the size of 1 - 3,000 tonnes of plastic.
  • the external thread 12 of the spout 9 is designed only as a fine thread, because compared to solutions of the prior art, the axially occurring forces in the advance of the not quite circular cutting ring 1 does not have to be absorbed by the cap 2 and thus the threads 12, 18 remain practically unloaded between the cap 2 and the lower part 3.
  • an annular abutment bead 32 is integrally formed on the spout 9 below, which absorbs the acting forces when placing the cap 2 on the lower part 3 - i. E.
  • the cap can be pressed down directly to the stop on the stop bead 32, so be scarred.
  • FIG. 6 shows the already mentioned cap 2 consisting of cover 27 and shell wall 17 horizontally seen from the side, in this illustration, the molded with fine bonds 22 to the lower edge of the shell wall 17 guarantee strip 19 is shown.
  • the cap 2 is shown in a diametrical vertical section seen from the side.
  • the drive cam 16 is located on the inner cap cap 27 and points axially downwards to grab the first opening of the cap 2 in or on the ventilation dent 6 of the not completely circular cutter 1, this the helical downward cutting drive giving, at the same time the fine connections 22 between the tamper evident band 19 and shell wall 17 are torn open.
  • the interlocking means is designed as a simple internal thread, which cooperates with the external thread 12 present on the cylindrical spout 9.
  • the force exerted on the guarantee strip force is not added in the inventive device with the force acting on the cutting ring 1 with indentation 6, which is why the interlocking means 12, 18, as already mentioned, can also be configured as a fine thread, so that the cap 2 can bemmrammt to the spout 9, without a rotational movement must be performed.
  • FIG. 8 the lower part 3 is shown with spout 9 and threaded flange 10 in a diametrical vertical section seen from the side. Good to see here are formed on the inner wall of the spout 9 guide cam portions 13 which cooperate with the guide segments 5 on the cutting ring 1.
  • the guide curves on the inside of the nozzle 9 are not carried out continuously, but deliberately designed as a guide curve sections 13. This facilitates in the manufacture of the demolding of this lower part 3 of the closure device by sliding can be dispensed with. In addition, the friction between the cutting ring 1 and spout 9 is minimized by the non-continuous thread.
  • a major advantage of this design is also that the lower part 3 can be removed from the mold by means of offset cores in an injection mold, which leads to sharp edges on the guide curve sections 13 and thus to a more accurate fit with the helical guide segments 5 on the cutting ring 1.
  • This in FIG. 8 shown internal thread 23 on the threaded wall 11 of the flange 10 may also be configured as a Aufprellgewinde, as an adapter or adhesive surface, so that a variety of containers can be equipped.
  • the threaded wall 11 may also be an integral part of the container itself, which means that the lower part is formed on the neck of the container, in which case a membrane or film is provided, which is to be cut.
  • the previously mentioned guarantee strip 19 is prevented at the stops 15 on its rotational movement and acting as predetermined fragments bonds 22 are separated.
  • FIG. 9 is the complete closure device 24 consisting of upper part 2, cutting ring 1 with indentation 6 and lower part 3 seen in a perspective view obliquely from below, in which case the axial driving cam 16 outside the recess 6, that engages within the cutting ring 1 and this as a stop at corresponding revolving movement of the cap gives the necessary drive.
  • the defined by the recess 6 channel 26 serves as a ventilation duct and guaranteed by für sacredem container an all-time regular, laminar flow of the contents.
  • FIG. 10 is the complete closure device 25 consisting of upper part 2, Schneidering 1 and lower part 3 shown in a perspective detail view obliquely from below, in which case the axial driving cam 16 engages within the recess 6, ie outside the cutting ring 1, and this gives the necessary drive as in the above example, the actual helical downward movement of Cutters 1 in both examples by the interaction of the outside on the outer cutter ring 1 and the inside of the spout existing guide segments or guide cam sections 13 is effected.
  • the FIG. 11 shows a particular embodiment of the closure device, which simultaneously forms a hermetically sealed container for receiving a separate Zudosier component, for example, a powder, a liquid or granules.
  • a separate Zudosier component for example, a powder, a liquid or granules.
  • This container is even high-density, even oxygen-tight.
  • the closure cap contains a barrier layer 33, which is introduced in the course of the spraying process.
  • Such an internal layer can be produced by injecting two different components in a simultaneous injection process, for example, inside an even oxygen-tight EVOH and outside, for example, a polyolefin.
  • On the underside of the neck shoulder is a circular cross-sectionally V-shaped groove 34 is excluded.
  • the closure device is filled in the assembled and fallen state with the metering component for which substantially the inner part of the nozzle is available, with the cutting ring 1 taking up some space.
  • the nozzle is locked in this collapsed position at the bottom of the cap. He can now be filled from above.
  • a barrier film 35 is sealed onto the inside of the nozzle shoulder, namely via the groove 34. This has a circumferential in the outer edge region, in cross-section V-shaped groove 36.
  • the diameter of this groove 36 across the diameter of the disk-shaped barrier film 35 measures just less than the diameter of the V-shaped circular groove 34 at the nozzle shoulder.
  • This measure facilitates the later piercing and cutting of this barrier layer film 35 by means of the cutting ring 1.
  • the formed container is completely surrounded by a barrier layer, which may be oxygen-tight, so that even highly sensitive dosing substances can be enclosed in this way, such as vitamins, etc.
  • FIG. 12 shows a further embodiment of this closure device.
  • This makes it possible to first open a film capsule 42 accommodated in the lower part 3 with substance contained therein, for example in the form of a tablet 43 in the course of the first opening operation, and subsequently to automatically add the substance or tablet to the container contents.
  • the film capsule 42 is cut open in the course of the first opening and then pivoted downwardly inside the closure device so that the tablet contained in its interior 43 falls down into the container equipped with the closure.
  • a ring 37 is inserted between the cap 2 and the cutting ring 1 with pointing into the ring center, pivotally integrally formed on the inner edge of the ring 41 pivoting tongue 38.
  • This ring can also be formed on the upper side of the nozzle 9 on the lower part 3 in an alternative embodiment.
  • the pivoting tongue 38 has on its underside a downwardly projecting pusher rib 39.
  • the driver cam 16 on the closure cap lid 27 terminates in a starting from the cam height sloping guide curve.
  • This guide curve acts when unscrewing the cap 2 on the pivoting tongue 38 on the ring 37, so that the same is pivoted about the rotation of the cap 2 steadily downward.
  • This guide curve as shown here, can be a rib leading inwardly on the inside of the closure lid 27, which is guided spirally inwards, wherein it is guided at the higher end to the inner wall of the closure cap 2 via a radial section.
  • the rib has two notches 44, so that between them a driver cam 16 is formed, which engages in the recess 6 on the associated cutting ring 1.
  • a foil capsule 42 is inserted from below with entrapped substance or tablet 43 latching, so that the film capsule 42 is clamped in the lower part 3 between the lower part 3 and the stocked with the lower part 3 bottleneck and thus held.
  • the film capsule 42 is shown above the lower part 3. This makes it easier to understand that the cutting member with the cutting edge 4 during its rotation, the film capsule 42 along its peripheral edge from above cuts, not only the upper film, but also the lower film. Thus, the film capsule is fully opened at its outer edge.
  • the pivoting tongue 38 begins to press with its pusher rib 39 from above onto the foil capsule 42, so that the foil capsule 42 is pivoted downward within the lower part 3.
  • the opening of the film capsule edge and the pivoting of the film capsule 42 has progressed so far that the substance or the tablet 43 slips out of the film capsule 42 through the opening formed and falls downwards.
  • the great advantage of the solution according to the invention consists in the novel cutting mechanism of the sharp cutting edge 4, whose edge is guided like a moving knife at an obtuse angle along the packaging material, as well as in minimizing the applied torque, because here the screwing movement by the perfectly coordinated interaction of cutting ring achieved with indentation and lower part.
  • the indentation 6 on the cutting ring 1 forms a ventilation channel 26, which leads to a laminar and regular outflow of the liquid content.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to a plastic closing device comprising a bottom part, a closing cap, and a cutting ring which is mounted inside the neck of the bottom part so as to be helically movable. A driving cam (16) which is axially disposed in the closing cap acts upon the non-continuously circular cutting ring when the closing cap is unscrewed such that the cutting ring perforates and cuts through the receptacle in a helical cutting movement. The cutting ring forms a ventilating concavity (6) which cooperates with the driving cam (16). The non-circular cutting ring, the bottom side of which is provided with a sharp cutting edge extending at an obtuse angle relative to the bottom edge of said ring, performs a helical cutting movement similar to an advancing knife when the closing cap is unscrewed such that the receptacle wall is easily cut by applying a minimum amount of force because a new sharp point constantly attacks the packaging material, thus preventing shredding. The recess (6) that is provided on the non-circular cutting ring acts as a ventilation duct (26) when the content is poured, obtaining an extremely steady, non-gushing pouring action.

Description

Diese Erfindung betrifft eine mehrteilige Verschliessvorrichtung aus Kunststoff, bestehend aus Verschlusskappe, Unterteil und nicht durchgehend kreisrundem Schneidering als zentralem Element, und die über einer Sollöffnungsstelle eines geschlossenen Behältnisses oder auf einen Flaschenstutzen anbringbar ist.This invention relates to a multi-part closure device made of plastic, consisting of closure cap, lower part and not continuously circular cutting ring as a central element, and which can be attached above a desired opening point of a closed container or on a bottle neck.

Zur Aufbewahrung von fliessfähigen Medien sind verschiedene Behältnisse im Markt erhältlich, bei denen vor dem Öffnen eine Membran, Folie oder auch die Verpackungswand selbst durchstossen werden muss, bevor das flüssige Medium dem Behältnis entnommen werden kann. Solche Behältnisse können Weichverpackungen aus mehrschichtigem Karton oder Folien sein, auf die eine Verschliessvorrichtung aufgeklebt oder aufgeschweisst ist. Es können aber auch Flaschen mit einem Gewinde- oder Aufschnappstutzen sein, bei denen eine Folie oben auf dem Stutzen die Flasche verschliesst, und dann diese Folie aufgeschnitten werden muss. Typische Verschliessvorrichtungen für solche Verpackungsarten weisen ein Unterteil mit zylindrischem Ausgussstutzen und Aussengewinde sowie einem unteren, randständigen Flansch zur Befestigung auf der Weichpackung auf Bevor der Inhalt aus dem Behältnis entnommen werden kann, muss der Verschlussdeckel vom Unterteil abgeschraubt werden, um darauf die Behältniswand im Bereich des Ausgussstutzens zu durchtrennen. Die Öffnung der Behältniswand an der Sollöffnungsstelle kann durch Fingerdruck auf den integrierten Durchstosser erfolgen, was aber den Nachteil hat, dass die Ausgiesseigenschaften solcher Verschlüsse schlecht sind und dass die Gefahr einer Kontaminierung der Flüssigkeit gross ist, weil der Finger mit der Flüssigkeit in Berührung kommt. Eine andere Öffnungsart der Behältniswand besteht darin, dass ein Durchstosser mit Hilfe der Verschlusskappe nach unten durch den Packstoff gestossen wird. Hier muss der Verschluss zuerst vollständig zugedreht werden, um den im Ausgussstutzen des Unterteils gelagerten Durchstosser nach unten zu bewegen, wodurch die Weichverpackung geöffnet wird. Um den flüssigen Inhalt ausgiessen zu können, muss in einem dritten Schritt die Verschlusskappe vollständig abgeschraubt werden. Dieser Öffnungsmechanismus hat sich in der Praxis nicht durchgesetzt, da er zu kompliziert im Handling ist. Im Weiteren sind Durchstosser bekannt, die interaktiv mit einer Verschlusskappe derart zusammenwirken, dass beim Abschrauben der Schraubkappe gleichzeitig der Durchstosser so bewegt wird, dass dieser nach unten gefördert wird und die Verpackungswand durchstösst. Der durchtrennte Teil der Verpackungswand bleibt am Durchstosser hängen, weil dieser haftend auf der Verpackungswand angebracht werden muss. Der Durchstosser selber verbleibt in der Verschlusskappe und wird beim Öffnen mit hinausbefördert. Durch das mehrmalige Öffnen und Schliessen der Verschlusskappe kann leicht eine mehrfache Kontamination des Inhalts stattfinden. Zudem ist die Montage dieser Vorrichtung heikel und teuer. Da der Durchstosser auf die Behältniswand aufgeklebt werden muss, ist die richtige Dosiermenge des Klebstoffs entscheidend für das erfolgreiche erste Öffnen des Packstoffs.For storage of flowable media, various containers are available in the market, in which before opening a membrane, film or the packaging wall itself must be pounded before the liquid medium can be removed from the container. Such containers may be soft packaging made of multilayer cardboard or films, to which a closure device is glued or welded. But it can also be bottles with a threaded or Aufschnappstutzen, in which a film on top of the neck closes the bottle, and then this film must be cut. Typical closure devices for such types of packaging have a lower part with a cylindrical spout and external thread and a lower edge flange for attachment to the soft pack Before the contents can be removed from the container, the closure lid must be unscrewed from the base to the container wall in the area To cut through the pouring spout. The opening of the container wall at the Sollöffnungsstelle can be done by finger pressure on the integrated piercing, but has the disadvantage that the Ausgiesseigenschaften such closures are bad and that the risk of contamination of the liquid is large because the finger comes into contact with the liquid. Another type of opening of the container wall is that a piercer is pushed down through the packaging material with the aid of the closure cap. Here, the closure must be complete first are turned down to move down the piercer mounted in the spout of the base, whereby the soft package is opened. In order to pour out the liquid content, in a third step, the cap must be completely unscrewed. This opening mechanism has not enforced in practice because it is too complicated to handle. In addition, piercers are known which cooperate interactively with a closure cap in such a way that, when the screw cap is unscrewed, the piercer is simultaneously moved in such a way that it is conveyed downwards and pierces the packaging wall. The severed part of the package wall sticks to the piercer because it has to be adhered to the package wall. The piercer itself remains in the cap and is also transported out when opening. By repeatedly opening and closing the cap can easily take place multiple contamination of the contents. In addition, the assembly of this device is delicate and expensive. Since the piercing must be glued to the container wall, the correct dosage of the adhesive is crucial for the successful first opening of the packaging material.

Weichverpackungen weisen im Bereich der Durchstossung eine vorgestanzte Sollöffnungsstelle auf, damit der Durchstosser mit geringem Kraftaufwand eine vollständige Durchtrennung ermöglicht. Diese heikle Anstanzung ist oft zu gering ausgeführt, wodurch die erforderliche Kraft, die der Durchstosser aufbringen muss, sehr gross ist. Entsprechend muss das Gewinde am zylindrischen Unterteil und an der Innenfläche der Mantelwand der Verschlusskappe kräftig, d.h. mit grosser Gewindegangtiefe ausgestattet sein, was eine stabilere Konstruktion mit erhöhten Wandstärken und somit erhöhtem Materialbedarf bedingt. Die erforderliche Kraft zur Erstbetätigung der Verschlusskappe ist deshalb so gross, weil die gesamte Kraft für die translatorische Axialbewegung des Durchstossers nur durch die Rotationsbewegung der Verschlusskappe aufgebracht wird. Bei einigen Verschlüssen mit Durchstossern wird das Innengewinde am Verschluss-Stutzen weichentformt. Aber solche Gewinde können keine grosse Tiefe aufweisen und daher auch keine grossen axialen Kräfte übertragen. Bei anderen Lösungen wird der Durchstosser zunächst von Elementen, die unten am Deckel der Verschlusskappe angebracht sind, bei dessen Aufschrauben nach unten gedrückt, sodass ein Schneideorgan eine darunterliegende Folie durchsticht und hernach der Durchstosser noch gedreht wird. Bis die Drehung vollzogen ist und die Folie aufgeschnitten ist, hat sich die Verschlusskappe unterdessen vom Stutzengewinde losgeschraubt und kann entfernt werden. Beim erneuten Zuschrauben der Verschlusskappe wird der Durchstosser, weil sich ja die Verschlusskappe mit den Elementen an ihrer Deckelunterseite beim Zuschrauben auf den Durchstosser drückt, zunächst ein Stück weit noch weiter nach unten geschoben. Das erfordert einen entsprechenden Kraftaufwand beim erstmaligen Zuschrauben des Verschlusses und wird von den Konsumenten als unangenehm beanstandet.Soft packagings have a pre-punched target opening point in the area of the puncture, so that the piercer enables complete transection with little effort. This delicate stamping is often carried out too small, whereby the force required to apply the piercing, is very large. Accordingly, the thread on the cylindrical base and on the inner surface of the shell wall of the cap must strong, ie be equipped with large thread depth, which requires a more stable construction with increased wall thickness and thus increased material requirements. The force required for the first actuation of the closure cap is therefore so great because the entire force for the translational axial movement of the penetrator is applied only by the rotational movement of the closure cap. In some closures with punctures, the internal thread on the closure neck is softened. But such threads can not have great depth and therefore do not transmit large axial forces. In other solutions, the piercer is first pressed by elements which are mounted at the bottom of the lid of the cap when it is screwed down so that a cutting member pierces an underlying film and then the piercing is still rotated. Until the rotation is completed and the film Meanwhile, the cap has unscrewed from the nozzle thread and can be removed. When re-screwing the cap of the piercer, because yes presses the cap with the elements on its underside of the lid when screwing on the piercing, initially pushed a bit further down. This requires a corresponding effort when first screwing the closure and is objected to by the consumer as unpleasant.

Die Aufgabe der vorliegenden Erfindung ist es, einerseits eine Verschlussvorrichtung zu schaffen, bei der die Kraft zum Öffnen geringer ist, und andererseits ist es die Aufgabe der Erfindung, ein äusserst exaktes, scharfes, messerartiges Aufschneiden der Weichpackung oder der Folie auf einem Behälterstutzen im Bereich der Sollöffnungsstelle zu garantieren, und weiter ist es eine Aufgabe der Erfindung, jederzeit ein regelmäßiges, laminares Ausgiessverhalten des flüssigen Inhaltstoffes zu garantieren. Schliesslich ist es eine Aufgabe der Erfindung, mit so einer Verschlussvorrichtung eine gesonderte Substanz, auch eine sensitive Substanz, durch das Öffnen einem Behälterinhalt zudosieren zu können.The object of the present invention is to provide on the one hand a closure device in which the force for opening is lower, and on the other hand, the object of the invention, a very accurate, sharp, knife-like cutting of the soft pack or film on a container neck in the area To guarantee the target opening point, and further it is an object of the invention, at any time to guarantee a regular, laminar pouring behavior of the liquid ingredient. Finally, it is an object of the invention, with such a closure device, to be able to meter a separate substance, also a sensitive substance, into a container contents by opening.

Diese Aufgaben werden gelöst von einer mehrteiligen Verschlussvorrichtung mit den Merkmalen des Patentanspruchs 1.These objects are achieved by a multi-part closure device having the features of patent claim 1.

Anhand der Zeichnungen werden verschiedene Ausführungsbeispiele dieser Verschlussvorrichtung beschrieben und deren Funktion wird im Einzelnen erläutert.
Es zeigt:

Figur 1:
Den Verschlusskappendeckel mit Mitnehmemocken und Garantieband in einer perspektivischen Ansicht von schräg unten gesehen;
Figur 2:
Den nicht durchgehend kreisrunden Schneidering in einer perspektivischen Ansicht von schräg unten gesehen;
Figur 3:
Das Unterteil mit Ausgussstutzen und Gewinde- oder Aufprellflansch in einer perspektivischen Ansicht von schräg oben gesehen;
Figur 4:
Den nicht durchgehend kreisrunden Schneidering in einer Detailansicht perspektivisch von schräg unten gesehen;
Figur 5:
Den nicht durchgehend kreisrunden Schneidering mit abgewinkelter Schneide horizontal von der Seite her mit einer Detailansicht der scharfen Schneidekante betrachtet;
Figur 6:
Die Verschlusskappe mit angebundenem Garantieband horizontal von der Seite her gesehen;
Figur 7:
Die Verschlusskappe in einem diametralen Vertikalschnitt von der Seite her gesehen;
Figur 8:
Das Unterteil mit Ausgussstutzen und Gewindeflansch in einem diametralen Vertikalschnitt von der Seite her betrachtet;
Figur 9:
Die komplette Verschlussvorrichtung bestehend aus Oberteil, nicht durchgehend kreisrundem Schneidering und Unterteil in einer perspektivischen Ansicht von schräg unten gesehen, in der Ausführungsvariante "aussen";
Figur 10:
Die komplette Verschlussvorrichtung bestehend aus Oberteil, nicht durchgehend kreisrundem Schneidering und Unterteil in einer perspektivischen Ansicht von schräg unten gesehen, in der Ausführungsvariante "innen";
Figur 11:
Eine Variante der Verschlussvorrichtung mit Sperrschicht in der Verschlusskappe und unten an der Stutzenschulter, zur Bildung eines hermetisch abgeschlossenen Zudosier-Behältnisses im Innern der Verschlusskappe;
Figur 12:
Eine Darstellung der Einzelteile einer besonderen Verschlussvorrichtung zum Öffnen einer Folienkapsel und zum automatischen Zugeben einer darin eingeschlossenen Substanz oder Tablette.
Various embodiments of this closure device will be described with reference to the drawings and their function will be explained in detail.
It shows:
FIG. 1:
The closure cap lid with driving cam and guarantee strip seen in a perspective view obliquely from below;
FIG. 2:
The non-continuous circular cutting ring seen in a perspective view obliquely from below;
FIG. 3:
The lower part with spout and threaded or Aufprellflansch in a perspective view seen obliquely from above;
FIG. 4:
The non-continuous circular cutting ring in a detail view in perspective seen obliquely from below;
FIG. 5:
The non-continuous circular cutting ring with angled cutting horizontally viewed from the side with a detailed view of the sharp cutting edge;
FIG. 6:
The cap with attached guarantee band seen horizontally from the side;
FIG. 7:
The cap seen in a diametrical vertical section from the side;
FIG. 8:
The lower part with spout and threaded flange viewed in a diametrical vertical section from the side;
FIG. 9:
The complete closure device consisting of upper part, not continuously circular cutting ring and lower part seen in a perspective view obliquely from below, in the embodiment "outside";
FIG. 10:
The complete closure device consisting of upper part, not continuously circular cutting ring and lower part seen in a perspective view obliquely from below, in the embodiment "inside";
FIG. 11:
A variant of the closure device with a barrier layer in the cap and at the bottom of the nozzle shoulder, to form a hermetically sealed Zudosier container inside the cap;
FIG. 12:
An illustration of the parts of a particular closure device for opening a foil capsule and for automatically adding a substance or tablet enclosed therein.

In den Figuren 1 bis 3 sind die drei Hauptbestandteile der Verschlussvorrichtung dargestellt. Die Figur 1 zeigt dabei das Oberteil, die Verschlusskappe 2, in einer perspektivischen Ansicht von schräg unten gesehen. Sie besteht aus dem Verschlusskappendeckel 27 und der Mantelwand 17. Am inneren Verschlusskappendeckel 27 befindet sich ein axial verlaufender Mitnehmernocken 16, der in seiner Geometrie mit der Einbuchtung 6 am Schneidering 1 korrespondiert, wobei diese Einbuchtung 6 den sonst kreisrunden Schneidering 1 unterbricht, sodass man von einem nicht durchgehend kreisrunden Schneidering 1 sprechen kann. Einerseits greift der Mitnehmernocken 16 formschlüssig in die Einbuchtung 6 ein und liegt so mit seiner Innenseite an der Aussenwand 30 des Schneiderings 1 an. Andererseits kann der Mitnehmernocken 16 auch innerhalb des zylindrischen Schneiderings 1 an dessen Innenwand 8 anliegend als Anschlag an der Einbuchtung 6 wirken. Das Kernstück der erfindungsgemässen Verschlussvorrichtung ist der Schneidering 1, der in Figur 2 in einer perspektivischen Ansicht von schräg unten gesehen dargestellt ist. Der zylindrische Schneidering 1 ist in axialer Richtung oben und unten offen und weist als wichtiges Merkmal eine Einbuchtung 6 auf, die sich in axialer Richtung über die ganze Höhe des Schneiderings 1 erstreckt. An dieser Stelle unterbricht sie den Schneidring, sodass dieser also nicht gänzlich kreisrund ist. Diese Einbuchtung 6 bildet beim späteren Ausgiessen des Packungsinhalts einen Lüftungskanal 26 und sie wirkt mit dem Mitnehmernocken 16 derart zusammen, dass dieser entweder als Mitnehmer wirkt, wenn er in die Einbuchtung 6 eingreift, oder als Anschlag, wenn der Mitnehmernocken 16 von der Innenseite des Rings 1 an der Einbuchtung 6 anschlägt. Der zylindrische Schneidering 1 weist als weiteres wichtiges Merkmal eine scharfe Schneidekante 4 auf, die mit dem unteren Rand 29 des Schneidrings 1 einen stumpfen Winkel einschliesst. Auf die Funktion der Schneidekante 4 und der an ihr in horizontaler Richtung anschliessenden Führungsrillen 7 wird nachfolgend noch eingegangen. An der zylindrischen Aussenwand des Schneiderings 1 sind schraubenlinienförmige Führungssegmente 5 angeformt, die mit den am zylindrischen Ausgussstutzen 9 angeformten Führungskurvenabschnitten 13 zusammenwirken und ineinander eingreifen. Figur 3 zeigt dabei das Unterteil 3 der erfindungsgemässen Verschlussvorrichtung mit Ausgussstutzen 9 und fluchtend einstückig am unteren Rand angeformtem Gewinde- oder Aufprellflansch 10 in einer perspektivischen Ansicht von schräg oben gesehen. In einer hier nicht gezeigten Variante kann der Flansch 10 auch flach ausgebildet sein, so dass die Befestigung entweder durch eine Aufschweissung oder Aufklebung an die Aussen- oder Innenseite einer Weichpackung erfolgt, wobei im letzteren Fall das Unterteil 3 die bereits vorhandene Öffnung von unten her durchsetzt. In diesen beiden genannten Varianten ist dann eine gesonderte Membran oder Folie vorgesehen, die zu durchschneiden ist. In einer weiteren Variante kann das Unterteil 3 auch einen integralen Bestandteil des Behältnisses darstellen. In diesem Fall entspricht somit der Unterteil 3 einem entsprechend gestalteten Behältnishals, zum Beispiel einer Flasche. Der zylinderförmige Stutzen 9 besitzt auf seiner Aussenseite ein Aussengewinde 12, das mit dem Innengewinde 18 der Verschlusskappe 2 zusammenwirkt, damit der Zylinderstutzen 9 dichtend mit der Verschlusskappe 2 verschlossen und auch wieder geöffnet werden kann, indem der Verbraucher an der Mantelwand 17 dreht. Bei der ersten Abschraubbewegung der Verschlusskappe 2 wirkt der Mitnehmernocken 16 derart auf den nicht durchgehend kreisrunden Schneidering 1, dass dieser in einer schraubenlinienförmigen Bewegung nach unten gedreht wird. Die Führungssegmente 5 gleiten dabei auf der an der zylindrischen Innenwand 14 vorhandenen Führungskurvenabschnitten 13, wobei diese kein kontinuierliches, durchgehendes Gewinde darstellt, wodurch die Reibung stark vermindert wird. Ein weiterer Vorteil dieser Führungskurvenabschnitte 13 ist, dass das Unterteil 3 mit versetzten Kernen in einem Spritzgiesswerkzeug zwanglos entformt werden kann, wodurch an den Führungskurvenabschnitten 13 scharfe Kanten und somit eine genauere Passform mit dem Schneidering 1 realisierbar sind, da die Kanten nicht wie bei anderen Lösungen durch Zwangsentformung lang gezogen werden.In the FIGS. 1 to 3 the three main components of the closure device are shown. The FIG. 1 shows the upper part, the cap 2, viewed in a perspective view obliquely from below. It consists of the closure cap cover 27 and the shell wall 17. At the inner cap cap 27 is an axially extending driving cam 16, which corresponds in its geometry with the recess 6 on the cutting ring 1, said indentation 6 interrupts the otherwise circular cutting ring 1, so that one of a non-circular circular cutting ring 1 can speak. On the one hand, the driving cam 16 engages positively in the indentation 6 and thus lies with its inner side against the outer wall 30 of the cutting ring 1. On the other hand, the driver cam 16 can also act within the cylindrical cutting ring 1 against its inner wall 8 as a stop on the indentation 6. The core of the closure device according to the invention is the cutting ring 1, which in FIG. 2 is shown in a perspective view seen obliquely from below. The cylindrical cutting ring 1 is open at the top and bottom in the axial direction and has, as an important feature, a recess 6 which extends in the axial direction over the entire height of the cutting ring 1. At this point it interrupts the cutting ring so that it is not completely circular. This indentation 6 forms the later discharge of the contents of the package a ventilation channel 26 and it cooperates with the driving cam 16 such that it acts either as a driver when it engages in the recess 6, or as a stop when the driving cam 16 from the inside of the ring 1 abuts the indentation 6. The cylindrical cutting ring 1 has, as a further important feature, a sharp cutting edge 4, which forms an obtuse angle with the lower edge 29 of the cutting ring 1. On the function of the cutting edge 4 and the subsequent thereto in the horizontal direction guide grooves 7 will be discussed below. On the cylindrical outer wall of the cutting ring 1 helical guide segments 5 are formed, which cooperate with the integrally formed on the cylindrical spout 9 guide cam sections 13 and engage each other. FIG. 3 shows the lower part 3 of the inventive Closing device with spout 9 and aligned integrally formed on the lower edge of the threaded or Aufprellflansch 10 seen in a perspective view obliquely from above. In a variant not shown here, the flange 10 may also be formed flat, so that the attachment either by welding or sticking to the outside or inside of a soft pack, in the latter case, the lower part 3 passes through the existing opening from below , In these two variants, a separate membrane or foil is then provided which is to be cut. In a further variant, the lower part 3 can also be an integral part of the container. In this case, the lower part 3 thus corresponds to a correspondingly designed container neck, for example a bottle. The cylindrical neck 9 has on its outer side an external thread 12 which cooperates with the internal thread 18 of the closure cap 2, so that the cylinder neck 9 sealingly closed with the cap 2 and can also be opened again by the consumer on the jacket wall 17 rotates. During the first unscrewing movement of the closure cap 2, the driver cam 16 acts on the non-continuous circular cutting ring 1 in such a way that it is rotated downward in a helical movement. The guide segments 5 slide on the existing on the cylindrical inner wall 14 guide cam portions 13, which is not a continuous, continuous thread, whereby the friction is greatly reduced. Another advantage of this guide curve sections 13 is that the lower part 3 can be removed from the mold with offset cores in an injection mold, whereby sharp edges and thus a more accurate fit with the cutting ring 1 can be realized on the guide curve sections 13, since the edges are not as in other solutions be pulled long by compulsory removal.

In Figur 4 sind wichtige Merkmale des Schneiderings 1 in einer perspektivischen Detailansicht von schräg unten dargestellt. Die schraubenlinienförmig um die zylindrische Aussenwand 30 verlaufenden Führungssegmente 5 mit ihren scharfen Führungsflanken 28 und dem Stoppnocken 20 sind deutlich zu erkennen, wobei letzterer die translatorische Axialbewegung des Rings 1 begrenzt. Die axiale Einbuchtung 6 verdeutlicht in dieser Darstellung ihre beiden Wirkungsbereiche, nämlich die eines Anschlags resp. Mitnehmers und die eines Lüftungskanals 26 beim Ausgiessen des Inhaltes einer mit dieser Verschluss-Vorrichtung ausgerüsteten und geöffneten Verpackung. Die Einbuchtung 6 hat zudem den Vorteil, dass bei der Abtastung im Montagevorgang immer eine eindeutige Position des Rings 1 gegeben istIn FIG. 4 are important features of the cutting ring 1 shown in a perspective detail view obliquely from below. The helically around the cylindrical outer wall 30 extending guide segments 5 with their sharp guide flanks 28 and the stop cam 20 can be clearly seen, the latter limits the translational axial movement of the ring 1. The axial indentation 6 illustrates in this illustration their two areas of action, namely the one attack respectively. Mitnehmers and a ventilation duct 26 during the pouring of the contents of a with this closure device equipped and opened packaging. The indentation 6 also has the advantage that when scanning in the assembly process always a unique position of the ring 1 is given

Figur 5 zeigt den Schneidering 1 horizontal von der Seite her gesehen mit einer Detailansicht der scharfen Schneidekante 4. Die Schneide 4 ist anders gelöst als bei bekannten Systemen, indem der Schneidewinkel 21 grösser als 90° ausgebildet ist, was einen äusserst stabilen Schneidevorgang garantiert. Beim ersten Aufdrehen der Verschlusskappe 2 wird der Schneidering 1 mittels des Mitnehmernockens 16 schraubenlinienförmig nach unten bewegt. Dabei kratzt die unterste, spitze Eckkante 31 einen Packstoff oder eine Folie an und taucht mit zunehmender Drehung in den Packstoff oder die Folie ein und durchstösst diesen oder dieselbe. Im weiteren Verlauf der schraubenlinienförmigen Abwärtsbewegung des Rings 1 bewegt sich die scharfe Kante 4 entlang des Packstoffs oder der Folie, was eine erhebliche Kraftverminderung beim Öffnungsvorgang bedeutet, im Gegensatz zu Lösungen des Standes der Technik, denn es braucht in keiner Phase des Schneidevorgangs eine besonders grosse Kraft noch ein besonders hohes Drehmoment aufgebaut zu werden. Die sich in einer schraubenlinienförmigen Bewegung nach unten fahrende Schneidekante 4 ist vergleichbar mit einem fahrenden Messer und bewirkt, dass die scharfe Kante 4 laufend mit einer neuen, frischen und daher scharfen Stelle den Packstoff oder die Folie leicht und mit wenig Kraft schneidet, wodurch eine grobe Faserung der Schnittstelle vermieden wird und ein sauberer Schnitt resultiert. An der Aussenwand 30 des Schneiderings 1 mit Einbuchtung 6, ausgehend von der scharfen Schneidekante 4, sind Führungsrillen 7 vorhanden, die zur Führung und Glättung des durchtrennten Packstoffes oder der durchtrennten Folie dienen, was den exakten, sauberen und scharfen Schneidevorgang unterstützt. Das erfindungsgemässe Schneidesystem bewirkt einen gesamthaft stark verminderten Kraftaufwand beim Öffnen, sprich beim Durchschneiden eines Packungsstoffes oder einer Folie, wobei die Klebestelle einer auf eine Brickpackung aus Verbundkarton aufgeklebten Verschlussvorrichtung erheblich weniger belastet wird und folglich die Gefahr des Ablösens derselben von der Packung minimiert ist. Als Konsequenz dieser Kraftverminderung kann die erfindungsgemässe Verschlussvorrichtung als stabile, aber leichtere Konstruktion mit verminderten Wandstärken realisiert werden, was einer Einsparung von 1 - 3 Gramm pro Einheit entspricht. Bei einer Produktion von 106 - 109 Stück im Jahr ergibt dies Materialeinsparungen in der Grösse von 1 - 3'000 Tonnen Kunststoff. FIG. 5 shows the cutter ring 1 horizontally seen from the side with a detailed view of the sharp cutting edge 4. The cutting edge 4 is solved differently than in known systems by the cutting angle 21 is formed greater than 90 °, which guarantees an extremely stable cutting process. During the first unscrewing of the closure cap 2, the cutting ring 1 is moved down in a helical manner by means of the driving cam 16. The lowest, acute corner edge 31 scratching a packaging material or a film and dives with increasing rotation in the packaging material or the film and pierces this or the same. In the further course of the helical downward movement of the ring 1, the sharp edge 4 moves along the packaging material or the film, which means a significant force reduction during the opening process, in contrast to prior art solutions, because it does not need a particularly large in any phase of the cutting process Force even a particularly high torque to be built. The cutting edge 4 descending in a helical motion is comparable to a traveling knife and causes the sharp edge 4 to cut continuously with a new, fresh and therefore sharp spot the packaging material or the film easily and with little force, thereby producing a coarse Fanning the interface is avoided and a clean cut results. On the outer wall 30 of the cutting ring 1 with indentation 6, starting from the sharp cutting edge 4, guide grooves 7 are provided, which serve for guiding and smoothing the severed packaging material or the cut film, which supports the exact, clean and sharp cutting process. The inventive cutting system causes an overall greatly reduced effort when opening, ie when cutting a Packungsstoffes or a film, wherein the splice of a glued on a composite pack of brick carton closure device is considerably less burdened and consequently the risk of detachment of the same from the pack is minimized. As a consequence of this force reduction, the closure device according to the invention can be realized as a stable, but lighter construction with reduced wall thicknesses, which corresponds to a saving of 1 to 3 grams per unit. At a production of 10 6 - 10 9 Each year, this results in material savings in the size of 1 - 3,000 tonnes of plastic.

In einer hier nicht gezeigten Ausführungsform ist das Aussengewinde 12 des Ausgussstutzens 9 lediglich als Feingewinde gestaltet, weil im Vergleich zu Lösungen des Standes der Technik die axial auftretenden Kräfte bei dem Vorschub des nicht ganz kreisrunden Schneiderings 1 nicht von der Verschlusskappe 2 aufgenommen werden müssen und somit die Gewinde 12, 18 zwischen der Verschlusskappe 2 und dem Unterteil 3 praktisch unbelastet bleiben. Zwischen dem Aussengewinde 12 und dem Flansch 10 ist am Ausgussstutzen 9 unten ein ringförmiger Anschlagwulst 32 angeformt, der beim Aufsetzen der Verschlusskappe 2 auf das Unterteil 3 die wirkenden Kräfte aufnimmt - d.h. die Verschlusskappe kann direkt bis zum Anschlag an den Anschlagwulst 32 hinuntergedrückt, also geschrammt werden.In an embodiment not shown here, the external thread 12 of the spout 9 is designed only as a fine thread, because compared to solutions of the prior art, the axially occurring forces in the advance of the not quite circular cutting ring 1 does not have to be absorbed by the cap 2 and thus the threads 12, 18 remain practically unloaded between the cap 2 and the lower part 3. Between the external thread 12 and the flange 10, an annular abutment bead 32 is integrally formed on the spout 9 below, which absorbs the acting forces when placing the cap 2 on the lower part 3 - i. E. The cap can be pressed down directly to the stop on the stop bead 32, so be scarred.

Die Figur 6 zeigt die bereits erwähnte Verschlusskappe 2 bestehend aus Deckel 27 und Mantelwand 17 horizontal von der Seite her gesehen, wobei in dieser Darstellung das mit feinen Anbindungen 22 zum unteren Rand der Mantelwand 17 angeformte Garantieband 19 dargestellt ist.The FIG. 6 shows the already mentioned cap 2 consisting of cover 27 and shell wall 17 horizontally seen from the side, in this illustration, the molded with fine bonds 22 to the lower edge of the shell wall 17 guarantee strip 19 is shown.

In Figur 7 ist die Verschlusskappe 2 in einem diametralen Vertikalschnitt von der Seite her gesehen dargestellt. Der Mitnehmernocken 16 befindet sich am inneren Verschlusskappendeckel 27 und zeigt axial nach unten, um beim ersten Öffnen der Verschlusskappe 2 in oder an die Lüftungseinbuchtung 6 des nicht vollständig kreisrunden Schneiderings 1 zu greifen, diesem den schraubenlinienförmig nach unten gerichteten Schneideantrieb gebend, wobei gleichzeitig auch die feinen Anbindungen 22 zwischen Garantieband 19 und Mantelwand 17 aufgerissen werden. In der hier gezeigten Ausführung ist das Formschlussmittel als einfaches Innengewinde ausgeführt, welches mit dem am zylindrischen Ausgussstutzen 9 vorhandenen Aussengewinde 12 zusammenwirkt. Die auf das Garantieband ausgeübte Kraft addiert sich in der erfindungsgemässen Vorrichtung nicht mit der Kraft, die auf den Schneidering 1 mit Einbuchtung 6 wirkt, weshalb die Formschlussmittel 12, 18, wie bereits früher erwähnt, auch als Feingewinde ausgestaltet sein können, so dass die Verschlusskappe 2 auf den Ausgussstutzen 9 aufgeschrammt werden kann, ohne dass eine Drehbewegung ausgeführt werden muss.In FIG. 7 the cap 2 is shown in a diametrical vertical section seen from the side. The drive cam 16 is located on the inner cap cap 27 and points axially downwards to grab the first opening of the cap 2 in or on the ventilation dent 6 of the not completely circular cutter 1, this the helical downward cutting drive giving, at the same time the fine connections 22 between the tamper evident band 19 and shell wall 17 are torn open. In the embodiment shown here, the interlocking means is designed as a simple internal thread, which cooperates with the external thread 12 present on the cylindrical spout 9. The force exerted on the guarantee strip force is not added in the inventive device with the force acting on the cutting ring 1 with indentation 6, which is why the interlocking means 12, 18, as already mentioned, can also be configured as a fine thread, so that the cap 2 can be aufgerammt to the spout 9, without a rotational movement must be performed.

In Figur 8 ist das Unterteil 3 mit Ausgussstutzen 9 und Gewindeflansch 10 in einem diametralen Vertikalschnitt von der Seite her gesehen dargestellt. Hier gut zu erkennen sind die an der Innenwand des Ausgussstutzens 9 angeformten Führungskurvenabschnitte 13, die mit den Führungssegmenten 5 am Schneidering 1 zusammenwirken. Die Führungskurven auf der Innenseite des Stutzens 9 sind nicht durchgehend ausgeführt, sondern bewusst bloss als Führungskurvenabschnitte 13 ausgeführt. Das erleichtert in der Herstellung das Entformen dieses Unterteils 3 der Verschluss-Vorrichtung, indem auf Schieber verzichtet werden kann. Ausserdem wird durch das nicht kontinuierlich durchgehende Gewinde die Reibung zwischen Schneidering 1 und Ausgussstutzen 9 minimiert. Ein grosser Vorteil dieser Ausführung ist zudem, dass das Unterteil 3 mittels versetzten Kernen in einem Spritzgiesswerkzeug zwanglos entformt werden kann, was zu scharfen Kanten an den Führungskurven-Abschnitten 13 und somit zu einer genaueren Passform mit den schraubenlinienförmigen Führungssegmenten 5 am Schneidering 1 führt. Das in Figur 8 gezeigte Innengewinde 23 an der Gewindewand 11 des Flansches 10 kann auch als Aufprellgewinde, als Adapter oder Klebefläche ausgestaltet sein, so dass die unterschiedlichsten Behältnisse ausgerüstet werden können. Die Gewindewand 11 kann auch integraler Bestandteil des Behältnisses selbst sein, was bedeutet, dass das Unterteil am Hals des Behältnisses angeformt ist, wobei dann eine Membran oder Folie vorgesehen ist, die zu durchtrennen ist. Das früher erwähnte Garantieband 19 wird an den Anschlägen 15 an seiner Drehbewegung gehindert und die als Sollbruchstücke wirkenden Anbindungen 22 werden getrennt.In FIG. 8 the lower part 3 is shown with spout 9 and threaded flange 10 in a diametrical vertical section seen from the side. Good to see here are formed on the inner wall of the spout 9 guide cam portions 13 which cooperate with the guide segments 5 on the cutting ring 1. The guide curves on the inside of the nozzle 9 are not carried out continuously, but deliberately designed as a guide curve sections 13. This facilitates in the manufacture of the demolding of this lower part 3 of the closure device by sliding can be dispensed with. In addition, the friction between the cutting ring 1 and spout 9 is minimized by the non-continuous thread. A major advantage of this design is also that the lower part 3 can be removed from the mold by means of offset cores in an injection mold, which leads to sharp edges on the guide curve sections 13 and thus to a more accurate fit with the helical guide segments 5 on the cutting ring 1. This in FIG. 8 shown internal thread 23 on the threaded wall 11 of the flange 10 may also be configured as a Aufprellgewinde, as an adapter or adhesive surface, so that a variety of containers can be equipped. The threaded wall 11 may also be an integral part of the container itself, which means that the lower part is formed on the neck of the container, in which case a membrane or film is provided, which is to be cut. The previously mentioned guarantee strip 19 is prevented at the stops 15 on its rotational movement and acting as predetermined fragments bonds 22 are separated.

In Figur 9 ist die komplette Verschlussvorrichtung 24 bestehend aus Oberteil 2, Schneidering 1 mit Einbuchtung 6 und Unterteil 3 in einer perspektivischen Ansicht von schräg unten gesehen dargestellt, wobei hier der axiale Mitnehmernocken 16 ausserhalb der Ausnehmung 6, also innerhalb des Schneiderings 1 angreift und diesem als Anschlag bei entsprechender Aufdrehbewegung der Verschlusskappe den nötigen Antrieb verleiht. Der durch die Ausnehmung 6 definierte Kanal 26 dient dabei als Lüftungskanal und garantiert nach durchgeschnittenem Behältnis ein allzeitig regelmässiges, laminares Ausfliessen des Inhalts.In FIG. 9 is the complete closure device 24 consisting of upper part 2, cutting ring 1 with indentation 6 and lower part 3 seen in a perspective view obliquely from below, in which case the axial driving cam 16 outside the recess 6, that engages within the cutting ring 1 and this as a stop at corresponding revolving movement of the cap gives the necessary drive. The defined by the recess 6 channel 26 serves as a ventilation duct and guaranteed by durchgeschnittenem container an all-time regular, laminar flow of the contents.

In Figur 10 ist die komplette Verschlussvorrichtung 25 bestehend aus Oberteil 2, Schneidering 1 und Unterteil 3 in einer perspektivischen Detailansicht von schräg unten gesehen dargestellt, wobei hier der axiale Mitnehmernocken 16 innerhalb der Ausnehmung 6, also ausserhalb des Schneiderings 1 angreift, und diesem wie im oberen Beispiel den nötigen Antrieb verleiht, wobei die eigentliche schraubenlinienförmige Abwärtsbewegung des Schneiderings 1 in beiden Beispielen durch das Zusammenwirken der aussen am äusseren Schneidering 1 und innen am Ausgussstutzen vorhandenen Führungssegmente respektive Führungskurvenabschnitte 13 bewirkt wird.In FIG. 10 is the complete closure device 25 consisting of upper part 2, Schneidering 1 and lower part 3 shown in a perspective detail view obliquely from below, in which case the axial driving cam 16 engages within the recess 6, ie outside the cutting ring 1, and this gives the necessary drive as in the above example, the actual helical downward movement of Cutters 1 in both examples by the interaction of the outside on the outer cutter ring 1 and the inside of the spout existing guide segments or guide cam sections 13 is effected.

Die Figur 11 zeigt eine besondere Ausführung der Verschlussvorrichtung, die hier gleichzeitig ein hermetisch abgeschlossenes Behältnis zur Aufnahme einer gesonderten Zudosier-Komponente bildet, zum Beispiel eines Pulvers, einer Flüssigkeit oder eines Granulates. Dieses Behältnis ist dabei sogar hochdicht, sogar sauerstoffdicht. Hierzu enthält die Verschlusskappe eine Sperrschicht 33, die im Zuge des Spritzverfahrens eingebracht wird. Eine solche Schicht im Innern kann erzeugt werden, indem in einem gleichzeitigen Injektionsverfahren zwei verschiedene Komponenten eingespritzt werden, innen zum Beispiel ein sogar sauerstoffdichtes EVOH und aussen zum Beispiel ein Polyolefin. Auf der Unterseite der Stutzenschulter ist kreisförmig eine im Querschnitt V-förmige Nut 34 ausgenommen. Die Verschluss-Vorrichtung wird in zusammengesetztem und gestürztem Zustand mit der Zudosier-Komponente befüllt, für die im Wesentlichen der Innenteil des Stutzens zur Verfügung steht, wobei der Schneidering 1 noch etwas Platz wegnimmt. Der Stutzen ist in dieser gestürzten Lage unten von der Kappe verschlossen ist. Er kann jetzt von oben befüllt werden. Nach dem Befüllen wird auf die Innenseite der Stutzenschulter, nämlich über die Nut 34, eine Sperrschicht-Folie 35 aufgesiegelt. Diese weist eine im äusseren Randbereich umlaufende, im Querschnitt V-förmige Rille 36 auf. Der Durchmesser dieser Rille 36 über den Durchmesser der scheibenförmigen Sperrschicht-Folie 35 misst knapp etwas weniger als der Durchmesser der V-förmigen kreisförmigen Nut 34 an der Stutzenschulter. Beim Aufpressen der Sperrschicht-Folie 35 im Zuge des Zusiegelns wird sie deshalb überall in radialer Richtung gespannt und in dieser vorgespannten Lage versiegelt. Diese Massnahme erleichert das spätere Anstechen und Aufschneiden dieser Sperrschichtfolie 35 mittels des Schneiderings 1. Das gebildete Behältnis ist rundum von einer Sperrschicht umgeben, die sauerstoffdicht sein kann, sodass auch hochsensible Zudosierstoffe in dieser Weise eingeschlossen werden können, wie etwa Vitamine etc.The FIG. 11 shows a particular embodiment of the closure device, which simultaneously forms a hermetically sealed container for receiving a separate Zudosier component, for example, a powder, a liquid or granules. This container is even high-density, even oxygen-tight. For this purpose, the closure cap contains a barrier layer 33, which is introduced in the course of the spraying process. Such an internal layer can be produced by injecting two different components in a simultaneous injection process, for example, inside an even oxygen-tight EVOH and outside, for example, a polyolefin. On the underside of the neck shoulder is a circular cross-sectionally V-shaped groove 34 is excluded. The closure device is filled in the assembled and fallen state with the metering component for which substantially the inner part of the nozzle is available, with the cutting ring 1 taking up some space. The nozzle is locked in this collapsed position at the bottom of the cap. He can now be filled from above. After filling, a barrier film 35 is sealed onto the inside of the nozzle shoulder, namely via the groove 34. This has a circumferential in the outer edge region, in cross-section V-shaped groove 36. The diameter of this groove 36 across the diameter of the disk-shaped barrier film 35 measures just less than the diameter of the V-shaped circular groove 34 at the nozzle shoulder. When pressing the barrier film 35 in the course of Zusiegelns it is therefore stretched everywhere in the radial direction and sealed in this biased position. This measure facilitates the later piercing and cutting of this barrier layer film 35 by means of the cutting ring 1. The formed container is completely surrounded by a barrier layer, which may be oxygen-tight, so that even highly sensitive dosing substances can be enclosed in this way, such as vitamins, etc.

Die Figur 12 zeigt eine weiterführende Ausgestaltung dieser Verschlussvorrichtung. Diese ermöglicht es, eine im Unterteil 3 untergebrachte Folienkapsel 42 mit darin enthaltener Substanz, zum Beispiel in Form einer Tablette 43 im Zuge des Erstöffnungsvorganges zunächst zu öffnen und hernach die Substanz bzw. Tablette automatisch dem Behälterinhalt zuzugeben. Hierzu wird die Folienkapsel 42 im Zuge der Erstöffnung aufgeschnitten und dann im Innern der Verschlussvorrichtung gleich so nach unten geschwenkt, dass die in ihrem Innern enthaltene Tablette 43 nach unten in das mit dem Verschluss ausgerüstete Behältnis fällt. Hierzu ist zwischen der Verschlusskappe 2 und dem Schneidering 1 ein Ring 37 mit ins Ringzentrum zeigender, am inneren Ringrand 41 schwenkbar angeformter Schwenkzunge 38 eingelegt. Dieser Ring kann in einer alternativen Ausführung auch an der Oberseite des Stutzens 9 am Unterteil 3 angeformt sein. Die Schwenkzunge 38 weist an ihrer Unterseite eine nach unten ragende Drückerrippe 39 auf. Der Mitnehmernocken 16 am Verschlusskappendeckel 27 läuft in eine von der Nockenhöhe ausgehend abfallende Führungskurve aus. Diese Führungskurve wirkt beim Abschrauben der Verschlusskappe 2 auf die Schwenkzunge 38 am Ring 37, sodass dieselbe über die Drehung der Verschlusskappe 2 stetig abwärts geschwenkt wird. Diese Führungskurve kann wie hier gezeigt eine spiralförmig nach innen führende, auf der Verschlussdeckel-Innenseite 27 stehende Rippe sein, wobei sie am höheren Ende über einen radialen Abschnitt an die Innenwand der Verschlusskappe 2 geführt ist. Gleich anschliessend an diesen Abschnitt weist die Rippe zwei Einschnitte 44 auf, sodass zwischen denselben ein Mitnehmernocken 16 gebildet ist, welcher in die Einbuchtung 6 am zugehörigen Schneidering 1 eingreift. In den Unterteil 3 ist von unten eine Folienkapsel 42 mit darin eingeschlossener Substanz oder Tablette 43 einrastend eingelegt, sodass die Folienkapsel 42 im Unterteil 3 zwischen dem Unterteil 3 und dem mit dem Untertil 3 bestückten Flaschenhals eingeklemmt und somit festgehalten ist. In der Figur ist die Folienkapsel 42 allerdings oberhalb des Unterteils 3 dargestellt. Dadurch wird leichter verständlich, dass das Schneideorgan mit der Schneidekante 4 bei seiner Drehung die Folienkapsel 42 längs ihres umlaufenden Randes von oben aufschneidet, und zwar nicht nur die obere Folie, sondern auch die untere Folie. Somit wird die Folienkapsel an ihrem Aussenrand vollständig geöffnet. Gleichzeitig mit dem Aufschneiden beginnt die Schwenkzunge 38 mit ihrer Drückerrippe 39 von oben auf die Folienkapsel 42 zu drücken, sodass die Folienkapsel 42 innerhalb des Unterteils 3 nach unten geschwenkt wird. Schliesslich ist die Öffnung des Folienkapselrandes und das Abschwenken der Folienkapsel 42 soweit fortgeschritten, dass die Substanz oder die Tablette 43 durch erzeugte Öffnung aus der Folienkapsel 42 herausrutscht und nach unten fällt.The FIG. 12 shows a further embodiment of this closure device. This makes it possible to first open a film capsule 42 accommodated in the lower part 3 with substance contained therein, for example in the form of a tablet 43 in the course of the first opening operation, and subsequently to automatically add the substance or tablet to the container contents. For this purpose, the film capsule 42 is cut open in the course of the first opening and then pivoted downwardly inside the closure device so that the tablet contained in its interior 43 falls down into the container equipped with the closure. For this purpose, a ring 37 is inserted between the cap 2 and the cutting ring 1 with pointing into the ring center, pivotally integrally formed on the inner edge of the ring 41 pivoting tongue 38. This ring can also be formed on the upper side of the nozzle 9 on the lower part 3 in an alternative embodiment. The pivoting tongue 38 has on its underside a downwardly projecting pusher rib 39. The driver cam 16 on the closure cap lid 27 terminates in a starting from the cam height sloping guide curve. This guide curve acts when unscrewing the cap 2 on the pivoting tongue 38 on the ring 37, so that the same is pivoted about the rotation of the cap 2 steadily downward. This guide curve, as shown here, can be a rib leading inwardly on the inside of the closure lid 27, which is guided spirally inwards, wherein it is guided at the higher end to the inner wall of the closure cap 2 via a radial section. Immediately after this section, the rib has two notches 44, so that between them a driver cam 16 is formed, which engages in the recess 6 on the associated cutting ring 1. In the lower part 3, a foil capsule 42 is inserted from below with entrapped substance or tablet 43 latching, so that the film capsule 42 is clamped in the lower part 3 between the lower part 3 and the stocked with the lower part 3 bottleneck and thus held. In the figure, however, the film capsule 42 is shown above the lower part 3. This makes it easier to understand that the cutting member with the cutting edge 4 during its rotation, the film capsule 42 along its peripheral edge from above cuts, not only the upper film, but also the lower film. Thus, the film capsule is fully opened at its outer edge. Simultaneously with the slicing, the pivoting tongue 38 begins to press with its pusher rib 39 from above onto the foil capsule 42, so that the foil capsule 42 is pivoted downward within the lower part 3. Finally, the opening of the film capsule edge and the pivoting of the film capsule 42 has progressed so far that the substance or the tablet 43 slips out of the film capsule 42 through the opening formed and falls downwards.

Der grosse Vorteil der erfindungsgemässen Lösung besteht im neuartigen Schneidemechanismus der scharfen Schneide 4, deren Kante gleich einem fahrenden Messer in stumpfem Winkel entlang des Packstoffs geführt wird, sowie in der Minimierung des aufzubringenden Drehmoments, weil hier die Schraubbewegung durch das perfekt aufeinander abgestimmte Zusammenwirken von Schneidering mit Einbuchtung und Unterteil erzielt wird. Die Einbuchtung 6 am Schneidring 1 bildet einen Lüftungskanal 26, was zu einem laminaren und regelmässigen Ausfliessen des flüssigen Inhalts führt.The great advantage of the solution according to the invention consists in the novel cutting mechanism of the sharp cutting edge 4, whose edge is guided like a moving knife at an obtuse angle along the packaging material, as well as in minimizing the applied torque, because here the screwing movement by the perfectly coordinated interaction of cutting ring achieved with indentation and lower part. The indentation 6 on the cutting ring 1 forms a ventilation channel 26, which leads to a laminar and regular outflow of the liquid content.

Claims (10)

  1. A multipart plastic closing device attachable over a receptacle, comprising a bung-shaped bottom part (3) with a cylindrical pouring spout (9) which is connected or connectable to the receptacle, and a closing cap (2) which is sealingly placeable on the spout (9) of the bottom part (3), as well as a cylindrical cutting ring (1) which is open on both sides in an axial direction and is helically movably provided in the spout (9) of the bottom part (3), with in the closing cap (2) there being provided at least one means (16) which acts on the cutting ring (1) during an unscrewing movement of the closing cap (2), characterised in that the cutting ring (1) is not continuously circular, but in at least one place forms a recess (6) which co-operates as a driver with at least one associated axially running driving cam (16) present in the closing cap cover (27) when said cam engages in the inside of the recess (6), or as a stop when from inside the cutting ring (1) and outside the recess (6) it hits the latter, as a result of which the cutting ring (1) during an unscrewing movement of the closing cap (2) due to the positively fitting means (5, 13) moulded to the inner wall of the cylindrical pouring spout (9) of the bottom part (3) and to the outside of the cutting ring (1) is displaceable into a helical downward leading movement during the initial unscrewing movement of the closing cap (2), and that the underside of the cutting ring (1) has a sharp cutting edge (4) which with the bottom edge (29) of the cutting ring (1) encloses an obtuse angle (21), and that the axial recess (6) on the cutting ring (1) acts as an ventilation duct (26) when the contents are poured out.
  2. Plastic closing device according to claim 1, characterised in that either between the closing cap (2) and the non-continuously circular cutting ring (1) is inserted a ring (37) with a movable tongue (38) which is movably moulded to the inner ring edge (41), points into the ring centre and has a downward projecting pusher rib (39), or said ring (37) is moulded onto the upper side of the spout (9) on the bottom part (3), and that to the driving cam (16) on the closing cap cover (27) is moulded a guide curve falling from cam height which, when the closing cap (2) is unscrewed, acts from above on the movable tongue (38), and that a foil capsule (42) with a substance or tablet (43) enclosed therein is snapped into the bottom part (3) from below, so that when the closing cap (2) is rotated the cutting ring (1) cuts the foil capsule (42) almost completely around its edge and the simultaneously moving movable tongue (38) swings the foil capsule (42) downwards so that the substance or tablet (43) falls down through the cut edge of the foil capsule (42).
  3. Closing device according to one of the previous claims, characterised in that the cylindrical pouring spout (9) of the bottom part (3) is formed with an external thread (12) with a lower edge-standing flange (10), the flange (10) being designed with an inner or outer impact thread (23) for attachment to a receptacle, and that the pierceable place is either a membrane or a region of the receptacle wall positioned below the pouring opening left free by the bottom part (3).
  4. Closing device according to one of claims 1 to 2, characterised in that the cylindrical pouring spout (9) of the bottom part (3) is formed with an external thread (12) with a lower edge-standing flat flange (10) for attachment by means of adhesive or by welding to a soft pack, and that the pierceable place is a membrane or region of the receptacle wall below the pouring opening left free by the bottom part (3).
  5. Closing device according to one of claims 1 to 2, characterised in that the bottom part (3) is an adapter which is placeable on a membrane-sealed neck of a receptacle and has a part forming the pouring spout (9) which extends upwards over the receptacle neck.
  6. Closing device according to one of claims 1 to 2, characterised in that the bottom part (3) is formed as part of the receptacle itself, with the closing cap containing a barrier layer (33) introduced in the course of injection moulding, further on the underside of the spout shoulder a circular groove (34) of V-shaped cross-section is recessed and after filling a barrier layer foil (35) is pre-tensioned and sealed over the groove (34).
  7. Closing device according to one of the preceding claims, characterised in that the bottom part (3) and the non-continuously circular cutting ring are two separately fabricated parts, and that on the cylindrical outer watt (30) of the non-continuously circular cutting ring (1) a helically-formed projecting guide segment (5) and on the cylindrical inner wall (14) of the pouring spout (9) projecting helically-formed guide curve segments (13) are provided as positive fitting means, with the guide segment (5) and guide curve segments (13) meshing together when twisted against each other.
  8. Closing device according to one of the preceding claims, characterised in that for rotation of the non-continuously circular cutting ring (1) the means in the closing cap (2) form at least one driving cam (16) which is provided axially on the inner closing cap cover and which either fastens as a limit stop outside the ventilating concavity (6) on the cylindrical inner wall (8) of the non-continuously circular cutting ring (1), or as a driver inside the ventilating concavity (6) engages with the cylindrical outer wall (30) of the non-continuously circular cutting ring (1).
  9. Closing device according to one of the preceding claim, characterised in that the sharp cutting edge (4) has two different effective ranges, namely a perforation range in the form of a sharp angled edge (31) to which connects the cutting range with a sharp cutting edge (4), with the result that the cut receptacle wall or membrane is cut completely and without rough fraying by the helical movement of the cutting edge (4) at an obtuse angle (21) as of a moving blade in the region of the pouring opening, thus minimising axial force effect and torque.
  10. Closing device according to one of the preceding claims, characterised in that the bottom part (3) and the non-continuously circular cutting ring (1) are integrally injection moulded in an axially aligned arrangement and are held together by predetermined breaking points, and on the outer side of the cutting ring (1), starting from the sharp cutting edge (4), are provided guide grooves (7) for the guidance and smoothing of the severed receptacle.
EP07700129A 2006-01-29 2007-01-29 Closing device comprising a non-continuously circular cutting ring Active EP1984261B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07700129T PL1984261T3 (en) 2006-01-29 2007-01-29 Closing device comprising a non-continuously circular cutting ring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00139/06A CH698661B1 (en) 2006-01-29 2006-01-29 Closing device with partially circular cutting ring.
PCT/CH2007/000036 WO2007085106A1 (en) 2006-01-29 2007-01-29 Closing device comprising a non-continuously circular cutting ring

Publications (2)

Publication Number Publication Date
EP1984261A1 EP1984261A1 (en) 2008-10-29
EP1984261B1 true EP1984261B1 (en) 2009-06-03

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US (1) US7886922B2 (en)
EP (1) EP1984261B1 (en)
JP (1) JP4987881B2 (en)
CN (1) CN101395064B (en)
AT (1) ATE432880T1 (en)
BR (1) BRPI0706774A2 (en)
CH (1) CH698661B1 (en)
DE (1) DE502007000834D1 (en)
EA (1) EA013494B1 (en)
ES (1) ES2327462T3 (en)
PL (1) PL1984261T3 (en)
UA (1) UA91259C2 (en)
WO (1) WO2007085106A1 (en)

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USD633386S1 (en) 2010-05-27 2011-03-01 Silgan White Cap LLC Closure
USD634199S1 (en) 2010-05-27 2011-03-15 Silgan White Cap LLC Closure
USD634200S1 (en) 2010-05-27 2011-03-15 Silgan White Cap LLC Closure
US8231020B2 (en) 2010-05-27 2012-07-31 Silgan White Cap LLC Impact resistant closure
US8672158B2 (en) 2010-05-27 2014-03-18 Silgan White Cap LLC Impact resistant closure
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ES2327462T3 (en) 2009-10-29
US7886922B2 (en) 2011-02-15
BRPI0706774A2 (en) 2011-04-12
EP1984261A1 (en) 2008-10-29
JP4987881B2 (en) 2012-07-25
ATE432880T1 (en) 2009-06-15
PL1984261T3 (en) 2009-11-30
US20090020494A1 (en) 2009-01-22
WO2007085106A1 (en) 2007-08-02
CN101395064A (en) 2009-03-25
JP2009524554A (en) 2009-07-02
CH698661B1 (en) 2009-09-30
EA200801786A1 (en) 2009-02-27
DE502007000834D1 (en) 2009-07-16
CN101395064B (en) 2010-07-07
EA013494B1 (en) 2010-04-30
UA91259C2 (en) 2010-07-12

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