EP2874892A1 - Re-sealable pouring spout for a bag consisting of flexible film - Google Patents

Re-sealable pouring spout for a bag consisting of flexible film

Info

Publication number
EP2874892A1
EP2874892A1 EP13727847.9A EP13727847A EP2874892A1 EP 2874892 A1 EP2874892 A1 EP 2874892A1 EP 13727847 A EP13727847 A EP 13727847A EP 2874892 A1 EP2874892 A1 EP 2874892A1
Authority
EP
European Patent Office
Prior art keywords
cutting
spout
leading
teeth
tooth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13727847.9A
Other languages
German (de)
French (fr)
Other versions
EP2874892B1 (en
Inventor
Dan Barron
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2874892A1 publication Critical patent/EP2874892A1/en
Application granted granted Critical
Publication of EP2874892B1 publication Critical patent/EP2874892B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/002—Closures to be pierced by an extracting-device for the contents and fixed on the container by separate retaining means
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5877—Non-integral spouts connected to a planar surface of the package wall
    • 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
    • B65D2547/00—Closures with filling and discharging, or with discharging, devices
    • B65D2547/04—Closures with discharging devices other than pumps
    • B65D2547/06—Closures with discharging devices other than pumps with pouring spouts ot tubes; with discharge nozzles or passages
    • B65D2547/063—Details of spouts

Definitions

  • the invention relates to a resealable spout for a bag made of elastic film according to claim 1.
  • Such a reclosable spout for a bag made of elastic film consists of a weldable with the bag
  • Spout with a flange a arranged in the spout cutting device with a flange-side cutting system and a mounted on the spout body and screw cap.
  • the cap is provided with means in the form of drivers to move the cutter when first opening the cap in the direction of the flange and thereby the bag in the Cut open flange area and create a pouring opening there.
  • Puncturing and slicing namely effects that are highly undesirable when opening the container.
  • this cutting device has a structure with a plurality of cutting teeth groups, which are distributed over a cutting circle circumference and against a leading
  • the cutting device contained in this spout has a structure with a plurality of cutting teeth groups distributed over a circumference of the cutting circle, and whose individual incisors progressively protrude less widely compared to two respective leading (trailing) incisors. Both the leading incisors as well as the Different heights graduated teeth of the cutting teeth groups are all formed tapered and are all on cutting
  • Cutting systems ie systems with actual incisors, have in bags made of elastic film, just because of the low stiffness of the plastic film material, the disadvantage that a clean cut - after the gate or the penetration has occurred once - in the episode only more difficult upright to obtain is. This has, as already mentioned, to do with the fact that the material to be cut must remain stretched as long as possible to achieve a clean cut.
  • Plastic film is prepared and weakened before the actual cutting in a suitable manner. It has been shown that to do so
  • Cutting device with a basic structure as described in the preamble of Patent claim 1 is defined, is particularly suitable. Accordingly, there is a cutting device with a cutting system,
  • the cutting system of the cutting device has at least one extending over a part of a cutting circle circumference cutting tooth group
  • this causes the film material to be first stretched to its elastic limit at the points where it comes into contact with the cutting teeth, and that at the same time it naturally also weakened and thinned.
  • the cutting teeth of the cutting tooth group adjoining the leading cutting tooth can be produced by the shaping according to the invention
  • Cutting direction leading cutting tooth in turn, at a leading edge in the cutting direction, with a chamfer on the flattening provided to prevent premature penetration of the elastic film.
  • Such a geometry allows the leading cutting tooth to slide more easily along the surface of the sheet material without already tearing the sheet material. But it causes - of course, also in conjunction with the subsequent and increasingly designed for scratching and cutting action teeth follow - that initially also a further weakening of the plastic film material by means of groove generation takes place. Simplified you can say that the
  • Fig. 1 shows a cross section through an inventive spout with built-Schneidverraum
  • Fig. 2 is a perspective view of the cutting system of
  • Fig. 3 is a perspective view of subcomponents of the spout of FIG. 1 during assembly.
  • Fig. 1 shows a cross section through an inventive spout with built-Schneidverraum.
  • the main components of the resealable spout are a spout body weldable with the bag 2 with a circumferential flange 3, a arranged in the spout body 2 cutting device 1 with an integrally connected thereto flange cutting system 4 and one on the spout. 2
  • Cap 5 on the cutting device 1 takes place via driver 8 on the cap 5 and on projecting ribs 9 on the inner wall of the cutting device. 1
  • the driver 8 are aligned with the cap 5 against the protruding ribs 9 on the inner wall of the cutting device 1 and then the cap 5 is pressed onto the spout 2, whereby the cutting device 1 in the spout 2 in the right
  • FIG. 1 shows the
  • inventive spout so as he looks after production or before first opening.
  • FIG. 2 shows a three-dimensional view of the cutting system 4 of FIG
  • the cutting system 4 is integral with a formed from a part-cylindrical wall existing body 10.
  • the cutting system 4 in this exemplary embodiment has three cutting tooth groups 11 extending over a respective part of a cutting circumference.
  • Each of these cutting teeth groups has a number of cutting teeth 12 and, moreover, the cutting teeth 12 in each cutting tooth group 11 are so
  • Cutting tooth group 1 1 continuously smaller flattening 13 have.
  • the flats 13, 13a lie substantially in a plane whose normal vector corresponds to the axis of rotation of the cutting device 1 and thus defined by the axial direction A. Synonymous one can therefore also say that the flats 13,13a parallel to the flange 3 run. Furthermore, it can be seen that all flattenings are the same. Of course it is also possible that the flattening is slightly different
  • Orientations or formations can receive, but essentially serve the same purpose.
  • FIG. 2 also shows that the chamfer 14 opens in a planar manner into a cutting edge 15 running essentially parallel to the axial direction A of the cutting device 1.
  • This cutting edge 15 is present in all existing cutting teeth groups 1 1 and it extends in the outer surface of the body 10.
  • Fig. 2 shows that the cutting system 4 of the cutting device 1 in a sector of the cutting circle circumference has a drainage recess. The juxtaposition of the cutting teeth groups 1 1 thus does not extend over the entire circumference of the cutting circle. This ensures that bags made of elastic film can be completely emptied.
  • Fig. 2 also shows that the cutting system 4 of the present embodiment has a total of three cutting teeth groups 1 1 and that these three cutting teeth groups 1 1 are arranged distributed over at least three quarters of the circumference of the cutting circuit. With this distribution, the axially acting forces during penetration are to be at least approximately compensated.
  • FIG. 3 also shows a spatial view of partial components of the spout according to FIG. 1 in a phase of assembly. This representation is only for the better understanding of the
  • Cutting device 1 is positioned and then the closure cap 5 is pressed over the spout body 2 until it is as shown in FIG.
  • Composition can then the spout with the flange 3 are welded onto a bag made of elastic plastic film.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)

Abstract

A re-sealable pouring spout for a bag consisting of flexible film has a cutting device comprising a cutting system (4). The cutting system (4) of the cutting device has at least one cutting teeth group (11) running around one part of the circumference of a cutting circle. Each cutting teeth group (11) has a number of cutting teeth (12, 12a). The cutting teeth of the cutting teeth group (11) are arranged such that the leading cutting tooth (12a) in the cutting direction projects the furthest in an axial direction (A) and the subsequent cutting teeth (12) of the cutting teeth group (11) that follow on from the leading cutting tooth (12a) project to a continually lesser extent in the axial direction (A). The leading cutting tooth (12a) in the cutting teeth group (11) has a flat portion (13a) and the other cutting teeth (12) of the cutting teeth group (11) that follow on from the leading cutting tooth (12a) have flat portions (13) that become increasingly smaller.

Description

Beschreibung Titel  Description title
Wiederverschliessbarer Ausguss für einen Beutel aus elastischer Folie  Reclosable spout for a bag made of elastic film
Die Erfindung betrifft einen wiederverschliessbaren Ausguss für einen Beutel aus elastischer Folie nach Patentanspruch 1 . The invention relates to a resealable spout for a bag made of elastic film according to claim 1.
Bei diesem wiederverschliessbaren Ausguss handelt es sich um eine der heute immer häufiger eingesetzten Varianten mit einer eingebauten This reclosable spout is one of the more commonly used variants today with a built-in
Schneidvorrichtung. Eingebaute Schneidvorrichtungen werden bekanntlich deshalb so häufig eingesetzt, weil es grundsätzlich einen sehr grossen Bedarf an leicht herstellbaren, die Hygienebedingungen erfüllenden und  Cutter. Built-cutting devices are known, therefore, so often used because there is a very large demand for easily manufacturable, fulfilling the conditions of hygiene and
resourcenschonenden Behältern zur Lagerung und zum Transport leicht verderblicher Waren wie Lebensmittel braucht, und weil offensichtlich bei ganz geschlossenen Beuteln, deren Integrität erst beim erstmaligen Gebrauch durch Aufschneiden überhaupt erst zerstört wird, die geforderten Standards bezüglich Frische und Keimfreiheit am ehesten garantiert werden können. Ein derartiger wiederverschliessbarer Ausguss für einen Beutel aus elastischer Folie besteht dabei aus einem mit dem Beutel verschweissbaren Resource-saving containers for storage and transport of perishable goods such as food needs, and because obviously in very closed bags whose integrity is first destroyed by cutting only when first used, the required standards in terms of freshness and sterility can best be guaranteed. Such a reclosable spout for a bag made of elastic film consists of a weldable with the bag
Ausgusskörper mit einem Flansch, einer im Ausgusskörper angeordneten Schneidvorrichtung mit einem flanschseitigen Schneidsystem und einer auf den Ausgusskörper aufgesetzten und schraubbaren Verschlusskappe. Dabei ist die Verschlusskappe mit Mitteln in der Form von Mitnehmern versehen um die Schneidvorrichtung beim erstmaligen Öffnen der Verschlusskappe in die Richtung des Flansches zu bewegen und dadurch den Beutel im Flanschbereich aufzuschneiden und dort eine Ausgiessöffnung zu schaffen. Derartige wiederverschliessbare Ausgüsse sind zwar an sich bekannt, sie haben aber den Nachteil, dass die heute bekannten Formen oftmals nicht ganz zufriedenstellend funktionieren, wenn sie direkt auf das elastische Spout with a flange, a arranged in the spout cutting device with a flange-side cutting system and a mounted on the spout body and screw cap. The cap is provided with means in the form of drivers to move the cutter when first opening the cap in the direction of the flange and thereby the bag in the Cut open flange area and create a pouring opening there. Although such reclosable spouts are known per se, but they have the disadvantage that the forms known today often do not work quite satisfactorily when they are directly on the elastic
Folienmaterial eines Kunststoffschlauchbeutels aufgeschweisst werden. Das hat mit den physikalischen Eigenschaften des Folienmateriales zu tun. Be welded film material of a plastic bag bag. This has to do with the physical properties of the film material.
Das Problem rührt nämlich daher, dass die bislang verwendeten The problem stems from the fact that the previously used
Schneidvorrichtungen mit einigen physikalischen Eigenschaften des Cutting devices with some physical properties of the
Folienmateriales, aus dem die Beutel bestehen, inkompatibel sind, weil beimFoil material from which the bags are made, incompatible, because the
Durchstechen und Aufschneiden nämlich Effekte auftreten die beim Öffnen des Behälters höchst unerwünscht sind. Puncturing and slicing namely effects that are highly undesirable when opening the container.
Versucht man nämlich, in bekannter Weise mit einer vorher beschriebenen Schneidvorrichtung eine elastische Folie kreisförmig aufzuschneiden und so eine Ausgiessöffnung zu schaffen, wird man feststellen, dass die elastische Folie zwar relativ leicht durchstochen werden kann, dass sich bei der weiteren Drehung der Verschlusskappe aber die auf bereits elastisch verformte Folie wirkenden Schneid-Drehmomentkräfte derart rasch ansteigen, dass die elastische Folie den Verdreh- und Scherkräften nicht mehr standhalten kann und unkontrolliert zerreisst. Dies führt dazu, dass nicht nur der weitere If you try namely, cut in a known manner with a previously described cutting device an elastic film circular and to create a pouring opening, it will be noted that the elastic film can be relatively easily pierced, that in the further rotation of the cap but on already elastically deformed film acting cutting torque forces rise so rapidly that the elastic film can no longer withstand the torsional and shear forces and ruptures uncontrollably. This leads to not just the further one
Aufdrehen des Schraubverschlusses, der seinerseits ja mit der Turning on the screw cap, which in turn is yes with the
Schneidvorrichtung gekoppelt ist, stark erschwert ist, sondern dass wegen des unkontrollierten Zerreissens auch gar keine klar definierte Ausgiessöffnung entsteht, so dass in der Folge dann auch das Ausgiessen selber stark beeinträchtigt ist. Häufig wird nämlich der Fall eintreten, dass unkontrolliert zerrissene Folienlappen die entstandene Ausgiessöffnung beim Ausgiessen wieder teilweise verschliessen. Etwas vereinfacht formuliert könnte man also das Problem mit der folgenden Analogie umschreiben: es ähnelt dem Versuch, ein lose gehaltenes Gummiband mit einem Plastikmesser zu zerschneiden. Man hat dieses Problem natürlich erkannt. Aus Gründen des resourcenschonenden Materialverbrauchs, aber auch aus Gründen der Cutting device is coupled, is much more difficult, but that due to the uncontrolled tearing even no clearly defined pouring opening is formed, so that in the episode then the pouring itself is severely impaired. In fact, it is often the case that uncontrollably torn foil flaps partially occlude the pouring opening that has formed during pouring. In a somewhat simplified form, one could rewrite the problem with the following analogy: it resembles the attempt to cut a loosely held rubber band with a plastic knife. Of course you have recognized this problem. For the sake of resource-saving material consumption, but also for the sake of
Transportsicherheit ist es natürlich trotzdem sehr sinnvoll, Beutel aus Transport safety, it is of course still very useful to bag out
elastischer Folie zu verwenden. Will man nämlich erreichen, dass flexible Behältnisse auch das Fallenlassen aus unterschiedlichen Höhen schadlos überstehen, muss man dafür sorgen, dass das verwendete Material elastisch genug ist, weil es sonst nämlich die Aufprallenergie nicht absorbieren könnte und zerbersten würde. Eine der Lösungen für die Anwendung bei flexiblen Behältern ist in der EP-1 396 435 offenbart. Diese Publikation beschreibt zwar einen elastic film to use. If you want to achieve that flexible containers and the dropping from different heights harmless survive, you must ensure that the material used is elastic enough, because otherwise it could not absorb the impact energy and would burst. One of the solutions for flexible container application is disclosed in EP-1 396 435. Although this publication describes one
wiederverschliessbarer Ausguss für einen Beutel aus flexiblem Material, allerdings handelt es sich hier um ein Verbundmaterial mit Kunststoff- und Papierschichten, weshalb es bezüglich seines Aufschneidverhaltens, insbesondere natürlich wegen seiner höheren Grund-Steifigkeit, ganz andere Eigenschaften aufweist als man dies bei einem Schlauchbeutel aus reinem Kunststoffmaterial erwarten kann. Gleichwohl hat diese Schneidvorrichtung aber eine Struktur mit mehreren Schneidzahngruppen, die verteilt über einen Schneidkreisumfang angeordnet sind und gegenüber einem führenden reclosable spout for a bag made of flexible material, but this is a composite material with plastic and paper layers, which is why it in terms of its Aufschneidverhaltens, in particular, of course, because of its higher basic stiffness, completely different properties than you would in a tubular bag made of pure Plastic material can expect. However, this cutting device has a structure with a plurality of cutting teeth groups, which are distributed over a cutting circle circumference and against a leading
Schneidezahn kontinuierlich abnehmend weniger weit vorstehen. Das Cutting down the incisor progressively less far. The
Aufschneiden soll mit dieser Anordnung nicht allein durch den führenden Schneidezahn erfolgen, denn man will das horizontale Verziehen des  Slicing should not be done with this arrangement alone by the leading incisor, because you want the horizontal distortion of
Verbundmateriales möglichst vermeiden. Eine weitere Lösung ist in der WO201 1/039054 gezeigt. Diese Publikation beschreibt einen wiederverschliessbaren Ausguss für einen Beutel aus Avoid composite material as much as possible. Another solution is shown in WO201 1/039054. This publication describes a reclosable spout for a bag
Kunststofffolienmaterial, also für einen eigentlichen Schlauchbeutel (pouch). Die in diesem Ausguss enthaltene Schneidvorrichtung hat eine Struktur mit mehreren Schneidzahngruppen, die verteilt über einen Schneidkreisumfang angeordnet sind, und deren einzelne Schneidezähne im Vergleich zu zwei jeweils führenden (vor- bzw. nachlaufenden) Schneidezähnen kontinuierlich weniger weit vorstehen. Sowohl die führenden Schneidezähne wie auch die auf unterschiedlichen Höhen abgestuften Folgezähne der Schneidzahngruppen sind alle spitz zulaufend ausgeformt und sind alle auf spanabhebende Plastic film material, so for a proper pouch. The cutting device contained in this spout has a structure with a plurality of cutting teeth groups distributed over a circumference of the cutting circle, and whose individual incisors progressively protrude less widely compared to two respective leading (trailing) incisors. Both the leading incisors as well as the Different heights graduated teeth of the cutting teeth groups are all formed tapered and are all on cutting
Schneidwirkung ausgelegt. Je nach Eindringtiefe kommt bei dieser Cutting action designed. Depending on the depth of penetration comes in this
Schneidvorrichtung beim Gebrauch einer nach dem anderen der Folgezähne zum Einsatz. Auch bei dieser Schneidvorrichtung geht es natürlich darum, den bei reinem Kunststofffolienmaterial noch viel ausgeprägter auftretenden Effekt des horizontalen Verziehens oder sogar unkontrollierten Zerreissens des Folienmaterials beim Aufschneiden möglichst zu vermeiden oder wenigstens zu minimieren. Cutting device when using one after the other of the follower teeth used. Of course, even with this cutting device, it is a matter of avoiding or at least minimizing the effect of horizontal warping or even uncontrolled tearing of the film material during slicing, which is much more pronounced in the case of a pure plastic film material.
Schneidende Systeme, also Systeme mit eigentlichen Schneidezähnen, haben bei Beuteln aus elastischer Folie, gerade wegen der geringen Steifheit des Kunststofffolienmaterials, den Nachteil, dass ein sauberer Schnitt - nachdem der Anschnitt bzw. die Penetration einmal erfolgt ist - in der Folge nur noch erschwert aufrecht zu erhalten ist. Das hat, wie bereits erwähnt, damit zu tun, dass das zu durchschneidende Material zur Erzielung eines sauberen Schnittes möglichst lange gespannt bleiben müsste. Cutting systems, ie systems with actual incisors, have in bags made of elastic film, just because of the low stiffness of the plastic film material, the disadvantage that a clean cut - after the gate or the penetration has occurred once - in the episode only more difficult upright to obtain is. This has, as already mentioned, to do with the fact that the material to be cut must remain stretched as long as possible to achieve a clean cut.
Es ist deshalb Aufgabe der Erfindung, einen gattungsgemässen verbesserten wiederverschliessbaren Ausguss mit einer Schneidvorrichtung für einen Beutel aus elastischer Kunststofffolie anzugeben, mit dem sich die elastische It is therefore an object of the invention to provide a generic improved resealable spout with a cutting device for a bag made of elastic plastic film, with which the elastic
Kunststofffolie möglichst komplikationslos aufschneiden lässt. Cut plastic film as uncomplicated as possible.
Diese Aufgabe wird durch die Merkmalskombination des Patentanspruchs 1 gelöst. This object is achieved by the feature combination of claim 1.
Die Lösung geht davon aus, dass es möglich ist, Komplikationen beim The solution assumes that it is possible to cause complications
Aufschneiden zu minimieren oder sogar ganz zu vermeiden, wenn die Minimize or even completely avoid cutting when the
Kunststofffolie vor dem eigentlichen Durchschneiden in einer geeigneten Weise vorbereitet und geschwächt wird. Es hat sich gezeigt, dass dazu eine Plastic film is prepared and weakened before the actual cutting in a suitable manner. It has been shown that to do so
Schneidvorrichtung mit einer Grundstruktur, wie sie im Oberbegriff des Patentanspruchs 1 definiert ist, besonders geeignet ist. Demgemäss ist eine Schneidvorrichtung mit einem Schneidsystem vorhanden, Cutting device with a basic structure, as described in the preamble of Patent claim 1 is defined, is particularly suitable. Accordingly, there is a cutting device with a cutting system,
- wobei das Schneidsystem der Schneidvorrichtung mindestens eine über einen Teil eines Schneidkreisumfanges verlaufende Schneidzahngruppe aufweist, und  - wherein the cutting system of the cutting device has at least one extending over a part of a cutting circle circumference cutting tooth group, and
- wobei die Schneidzahngruppe jeweils eine Anzahl von Schneidzähnen aufweist, und  - wherein the cutting teeth group each having a number of cutting teeth, and
- wobei die Schneidzähne der Schneidzahngruppe so angeordnet sind, dass ein in einer Schneidrichtung führender Schneidzahn in einer Axialrichtung am weitesten vorsteht und die weiteren an den führenden Schneidzahn  - wherein the cutting teeth of the cutting tooth group are arranged so that a leading in a cutting direction cutting tooth in the axial direction protrudes furthest and the other to the leading cutting tooth
anschliessenden Schneidzähne der Schneidzahngruppe in Axialrichtung kontinuierlich abnehmend weniger weit vorstehen, subsequent cutting teeth of the cutting tooth group in the axial direction continuously decreasing less protrude,
Die gewünschte Vorbereitungs- und Schwächungswirkung lässt sich erreichen, indem der in der mindestens einen Schneidzahngruppe führende Schneidzahn eine parallel zum Flansch verlaufende Abflachung aufweist und dass die weiteren an den führenden Schneidzahn anschliessenden Schneidzähne der Schneidzahngruppe fortwährend kleiner werdende gleich verlaufende The desired preparation and weakening effect can be achieved by the leading in the at least one cutting tooth group cutting tooth has a flattening parallel to the flange and that the other of the leading cutting tooth adjoining cutting teeth of the cutting tooth group continuously decreasing equal running
Abflachungen aufweisen. Have flattening.
Im Wesentlichen bewirkt man damit, dass das Folienmaterial zunächst an den Stellen an denen es mit den Schneidzähnen in Berührung kommt bis an seine Elastizitätsgrenze gedehnt wird und dass es so zugleich natürlich auch geschwächt und dünner gemacht wird. Ist die Elastizitätsgrenze erreicht, können die an den führenden Schneidzahn anschliessenden Schneidzähne der Schneidzahngruppe, die durch die erfindungsgemässe Formgebung Essentially, this causes the film material to be first stretched to its elastic limit at the points where it comes into contact with the cutting teeth, and that at the same time it naturally also weakened and thinned. Once the elasticity limit has been reached, the cutting teeth of the cutting tooth group adjoining the leading cutting tooth can be produced by the shaping according to the invention
zunehmend auf Schneidwirkung ausgelegt sind, das Folienmaterial dann leichter und zuverlässiger durchtrennen. Vorteilhafterweise ist dabei an der Schneidzahngruppe auch der in der are increasingly designed for cutting action, then cut the film material easier and more reliable. Advantageously, it is also on the cutting tooth group in the
Schneidrichtung führende Schneidzahn, seinerseits wiederum an einer in Schneidrichtung führenden Kante, mit einer Anfasung an der Abflachung versehen, um ein vorzeitiges Penetrieren der elastischen Folie zu vermeiden. Eine solche Geometrie erlaubt es, dass der führende Schneidzahn zunächst leichter an der Oberfläche des Folienmateriales entlang gleiten kann, ohne dadurch das Folienmaterial bereits zu durchreissen. Es bewirkt aber - natürlich auch in Zusammenwirkung mit den nachfolgenden und zunehmend auf Ritz- und Schneidwirkung ausgelegten Folgezähnen - dass zunächst auch eine weitere Schwächung des Kunststofffolienmaterials mittels Riefenerzeugung erfolgt. Etwas vereinfacht kann man also davon sprechen, dass die Cutting direction leading cutting tooth, in turn, at a leading edge in the cutting direction, with a chamfer on the flattening provided to prevent premature penetration of the elastic film. Such a geometry allows the leading cutting tooth to slide more easily along the surface of the sheet material without already tearing the sheet material. But it causes - of course, also in conjunction with the subsequent and increasingly designed for scratching and cutting action teeth follow - that initially also a further weakening of the plastic film material by means of groove generation takes place. Simplified you can say that the
(stumpferen) führenden Zähne eine Schwächung herbeiführen, und dass die nachfolgenden (spitzeren) Zähne dann die Durchschneidung bzw. (blunt) leading teeth cause a weakening, and that the subsequent (more pointed) teeth then the cut or
Durchtrennung bewirken. Cause separation.
Weitere vorteilhafte Ausgestaltungsformen des Erfindungsgegenstandes gehen aus den abhängigen Ansprüchen hervor und deren Bedeutung und Further advantageous embodiments of the subject invention will become apparent from the dependent claims and their meaning and
Wirkungsweise sind in der nachfolgenden Beschreibung mit Bezug auf die anliegende Zeichnung beschrieben. Operation will be described in the following description with reference to the accompanying drawings.
In der Zeichnung ist ein bevorzugtes Ausführungsbeispiel des In the drawing, a preferred embodiment of
Erfindungsgegenstandes dargestellt. Es zeigt: Invention subject represented. It shows:
Fig. 1 einen Querschnitt durch einen erfindungsgemässen Ausguss mit eingebauter Schneidverrichtung Fig. 1 shows a cross section through an inventive spout with built-Schneidverrichtung
Fig. 2 eine räumliche Ansicht des Schneidsystems der Fig. 2 is a perspective view of the cutting system of
Schneidvorrichtung gemäss Fig. 1 , und  Cutting device according to FIG. 1, and
Fig. 3 eine räumliche Ansicht von Teilkomponenten des Ausgusses gemäss Fig. 1 während dem Zusammenbau. Fig. 3 is a perspective view of subcomponents of the spout of FIG. 1 during assembly.
Die Fig. 1 zeigt einen Querschnitt durch einen erfindungsgemässen Ausguss mit eingebauter Schneidverrichtung. Die Hauptbestandteile des wiederverschliessbaren Ausgusses sind ein mit dem Beutel verschweissbarer Ausgusskörper 2 mit einem umlaufenden Flansch 3, einer im Ausgusskörper 2 angeordneten Schneidvorrichtung 1 mit einem integral damit verbundenen flanschseitigen Schneidsystem 4 und einer auf den Ausgusskörper 2 Fig. 1 shows a cross section through an inventive spout with built-Schneidverrichtung. The main components of the resealable spout are a spout body weldable with the bag 2 with a circumferential flange 3, a arranged in the spout body 2 cutting device 1 with an integrally connected thereto flange cutting system 4 and one on the spout. 2
aufgesetzten und schraubbaren Verschlusskappe 5. Der Beutel selber ist nicht dargestellt, es dürfte dem Fachmann aber klar sein, dass der Ausguss an Verbindungsbereichen 3a des Flansches 3 mit dem Beutel verschweisst wird. attached and screwed cap 5. The bag itself is not shown, but it should be clear to those skilled in the art that the spout is welded to connecting portions 3a of the flange 3 with the bag.
Da Ausgüsse dieser Art mit integrierten Schneidvorrichtungen grundsätzlich bekannt sind, werden deren Einzelteile und Funktionen im Folgenden nur übersichtsmässig und zum Zweck einer besseren Orientierung in Kurzform behandelt. So hat der Ausgusskörper 2 an der Aussenseite ein Feingewinde 6 zur Aufnahme der Verschlusskappe 5 und an der Innenseite ein Since spouts of this type are generally known with integrated cutting devices, their individual parts and functions are treated in the following only for clarity and for the purpose of better orientation in short form. Thus, the spout 2 on the outside of a fine thread 6 for receiving the cap 5 and on the inside a
Führungsgewinde 7, in dem die Schneidvorrichtung 1 beim Aufschrauben der Verschlusskappe 5 zwangsgeführt und in Richtung des Flansches 3 hin gedreht und verschoben wird. Die Übertragung des Drehmoments von der Guide thread 7, in which the cutting device 1 when screwing the cap 5 forcibly guided and rotated in the direction of the flange 3 and moved. The transmission of torque from the
Verschlusskappe 5 auf die Schneidvorrichtung 1 erfolgt dabei über Mitnehmer 8 an der Verschlusskappe 5 und über vorstehende Rippen 9 an der Innenwand der Schneidvorrichtung 1 . Für den Zusammenbau des Ausgusses werden die Mitnehmer 8 an der Verschlusskappe 5 gegenüber den vorstehende Rippen 9 an der Innenwand der Schneidvorrichtung 1 ausgerichtet und anschliessend wird die Verschlusskappe 5 auf den Ausgusskörper 2 aufgepresst, wodurch auch die Schneidvorrichtung 1 im Ausgusskörper 2 in der richtigen Cap 5 on the cutting device 1 takes place via driver 8 on the cap 5 and on projecting ribs 9 on the inner wall of the cutting device. 1 For the assembly of the spout, the driver 8 are aligned with the cap 5 against the protruding ribs 9 on the inner wall of the cutting device 1 and then the cap 5 is pressed onto the spout 2, whereby the cutting device 1 in the spout 2 in the right
(dargestellten) Positionierung einrastet. In der Folge kann dann der gezeigte wiederverschliessbare Ausguss durch Drehung der Verschlusskappe 5 im(shown) positioning locks. As a result, then the reclosable spout shown by rotation of the cap 5 in
Gegenuhrzeigersinn geöffnet werden. Beim erstmaligen Öffnen (und nur dann) kommt die Schneidvorrichtung 1 zum Einsatz. Die Fig. 1 zeigt den To be opened counterclockwise. When first opened (and only then) the cutting device 1 is used. Fig. 1 shows the
erfindungsgemässen Ausguss also so, wie er nach Herstellung bzw. vor dem erstmaligen Öffnen aussieht. inventive spout so as he looks after production or before first opening.
Die Fig. 2 zeigt eine räumliche Ansicht des Schneidsystems 4 der FIG. 2 shows a three-dimensional view of the cutting system 4 of FIG
Schneidvorrichtung 1 von Fig. 1 . Das Schneidsystem 4 ist einstückig an einen aus einer teilzylindrischen Wand bestehenden Körper 10 angeformt. Dabei hat das Schneidsystem 4 in diesem Ausführungsbeispiel drei über jeweils einen Teil eines Schneidkreisumfanges verlaufende Schneidzahngruppen 1 1 . Jede dieser Schneidzahngruppen weist eine Anzahl von Schneidzähnen 12 auf und zudem sind die Schneidzähne 12 in jeder Schneidzahngruppe 1 1 so Cutting device 1 of FIG. 1. The cutting system 4 is integral with a formed from a part-cylindrical wall existing body 10. In this case, the cutting system 4 in this exemplary embodiment has three cutting tooth groups 11 extending over a respective part of a cutting circumference. Each of these cutting teeth groups has a number of cutting teeth 12 and, moreover, the cutting teeth 12 in each cutting tooth group 11 are so
angeordnet, dass ein in einer Schneidrichtung S führender Schneidzahn 12a in einer Axialrichtung A am weitesten vorsteht (siehe dazu auch Fig. 1 ). Weiterhin ist ersichtlich, dass die weiteren an den führenden Schneidzahn 12a arranged so that a leading in a cutting direction S cutting tooth 12a in an axial direction A the most projecting (see also Fig. 1). Furthermore, it can be seen that the others to the leading cutting tooth 12 a
anschliessenden Schneidzähne 12 der Schneidzahngruppe 1 1 in Axialrichtung A kontinuierlich abnehmend weniger weit vorstehen. Schliesslich ist auch ersichtlich, dass der in der (jeweiligen) Schneidzahngruppe 1 1 führende Schneidzahn 12a eine Abflachung 13a aufweist und dass die weiteren an den führenden Schneidzahn 12a anschliessenden Schneidzähne 12 der subsequent cutting teeth 12 of the cutting teeth group 1 1 in the axial direction A continuously decreasing projecting less far. Finally, it can also be seen that in the (respective) cutting tooth group 1 1 leading cutting tooth 12a has a flattening 13a and that the other of the leading cutting tooth 12a subsequent cutting teeth 12 of the
Schneidzahngruppe 1 1 fortwährend kleiner werdende Abflachungen 13 aufweisen. Somit sind die beim Schneidvorgang vorauseilenden und zuerst mit der Kunststofffolie des Schlauchbeutels in Kontakt kommenden führenden Schneidzähne 12a klar stumpfer als die nachfolgenden und zunehmend spitzeren Schneidzähne 12. Die Abflachungen 13,13a liegen dabei im Wesentlichen in einer Ebene deren Normalenvektor der Rotationsachse der Schneidvorrichtung 1 entspricht und der somit durch die Achsrichtung A definiert ist. Synonym kann man deshalb auch sagen, dass die Abflachungen 13,13a parallel zum Flansch 3 verlaufen. Weiterhin ist erkennbar, dass alle Abflachungen gleich verlaufen. Es ist natürlich auch möglich, dass die Abflachungen geringfügig andere Cutting tooth group 1 1 continuously smaller flattening 13 have. Thus, the leading cutting teeth 12a leading in the cutting process and first coming in contact with the plastic film of the tubular bag are clearly blunter than the following and increasingly pointed cutting teeth 12. The flats 13, 13a lie substantially in a plane whose normal vector corresponds to the axis of rotation of the cutting device 1 and thus defined by the axial direction A. Synonymous one can therefore also say that the flats 13,13a parallel to the flange 3 run. Furthermore, it can be seen that all flattenings are the same. Of course it is also possible that the flattening is slightly different
Orientierungen oder Ausformungen erhalten können, im Wesentlichen aber dem gleichen Zweck dienen.  Orientations or formations can receive, but essentially serve the same purpose.
Weiterhin ist ersichtlich, dass der jeweils in der Schneidrichtung S führende Schneidzahn 12a seinerseits in Schneidrichtung vorne eine geneigte Anfasung 14 an der Abflachung 13a aufweist. Damit soll ein vorzeitiges Penetrieren der elastischen Folie zu vermieden werden. Es ist natürlich auch möglich, dass Abflachung 13a und Anfasung 14 stufenlos in einander übergehen, im Furthermore, it can be seen that the leading in each case in the cutting direction S cutting tooth 12a in turn in the cutting direction front has an inclined chamfer 14 on the flat 13a. This is to premature penetration of the elastic film to be avoided. Of course it is also possible that Flattening 13a and chamfer 14 steplessly merge into each other, in
Wesentlichen aber auch wieder dem gleichen Zweck dienen. But essentially serve the same purpose again.
Die Fig. 2 zeigt auch, dass die Anfasung 14 flächenhaft zulaufend in eine im Wesentlichen parallel zur Achsrichtung A der Schneidvorrichtung 1 verlaufende Schneidkante 15 mündet. Diese Schneidkante 15 ist bei allen vorhandenen Schneidzahngruppen 1 1 vorhanden und sie verläuft in der Aussenfläche des Körpers 10. Weiterhin zeigt die Fig. 2, dass das Schneidsystem 4 der Schneidvorrichtung 1 in einem Sektor des Schneidkreisumfanges eine Abflussaussparung hat. Die Aneinanderreihung der Schneidzahngruppen 1 1 erstreckt sich also nicht über den gesamten Schneidkreisumfang. Damit wird sichergestellt, dass Beutel aus elastischer Folie vollständig entleerbar ist. FIG. 2 also shows that the chamfer 14 opens in a planar manner into a cutting edge 15 running essentially parallel to the axial direction A of the cutting device 1. This cutting edge 15 is present in all existing cutting teeth groups 1 1 and it extends in the outer surface of the body 10. Furthermore, Fig. 2 shows that the cutting system 4 of the cutting device 1 in a sector of the cutting circle circumference has a drainage recess. The juxtaposition of the cutting teeth groups 1 1 thus does not extend over the entire circumference of the cutting circle. This ensures that bags made of elastic film can be completely emptied.
Schliesslich zeigt die Fig. 2 auch noch, dass das Schneidsystem 4 des vorliegenden Ausführungsbeispiels insgesamt drei Schneidzahngruppen 1 1 aufweist und dass diese drei Schneidzahngruppen 1 1 über mindestens drei Viertel des Schneidkreisumfangs verteilt angeordnet sind. Mit dieser Verteilung sollen die axial wirkenden Kräfte beim Penetrierungsvorgang wenigstens annähernd ausgeglichen werden. Finally, Fig. 2 also shows that the cutting system 4 of the present embodiment has a total of three cutting teeth groups 1 1 and that these three cutting teeth groups 1 1 are arranged distributed over at least three quarters of the circumference of the cutting circuit. With this distribution, the axially acting forces during penetration are to be at least approximately compensated.
Die Fig. 3 zeigt schliesslich noch eine räumliche Ansicht von Teilkomponenten des Ausgusses gemäss Fig. 1 in einer Phase des Zusammenbaus. Diese Darstellung dient lediglich dem besseren Verständnis der Finally, FIG. 3 also shows a spatial view of partial components of the spout according to FIG. 1 in a phase of assembly. This representation is only for the better understanding of the
Gesamtzusammenhänge. Sie illustriert den Zustand unmittelbar bevor die Schneidvorrichtung 1 zwecks Zusammenbaus des Ausgusses in den  Overall context. It illustrates the state immediately before the cutting device 1 for the purpose of assembling the spout in the
Ausgusskörper 2 geschoben wird. Dazu werden die früher erwähnten Spout 2 is pushed. These will be mentioned earlier
Mitnehmer 8 der Verschlusskappe 5 gegen die Rippen 9 der Driver 8 of the cap 5 against the ribs 9 of
Schneidvorrichtung 1 positioniert und anschliessend wird die Verschlusskappe 5 über den Ausgusskörper 2 gepresst, bis sie die in der Fig. 1 gezeigte Cutting device 1 is positioned and then the closure cap 5 is pressed over the spout body 2 until it is as shown in FIG
Endposition erreicht. Bei diesem Vorgang wird natürlich auch die Schneidvorrichtung 1 in den Ausgusskörper geschoben. Nach erfolgter Reached the final position. In this process, of course, the Cutting device 1 pushed into the spout. After successful
Zusammensetzung kann dann der Ausguss mit dem Flansch 3 auf einen Beutel aus elastischer Kunststofffolie aufgeschweisst werden. Composition can then the spout with the flange 3 are welded onto a bag made of elastic plastic film.

Claims

Patentansprüche claims
1 . Wiederverschliessbarer Ausguss für einen Beutel aus elastischer Folie, wobei der wiederverschliessbare Ausguss aus einem mit dem Beutel verschweissbaren Ausgusskörper (2) mit einem Flansch (3), einer im 1 . Reclosable spout for a bag made of elastic film, wherein the resealable spout of a weldable with the bag spout (2) with a flange (3), an im
Ausgusskörper angeordneten Schneidvorrichtung (1 ) mit einem flanschseitigen Schneidsystem (4) und einer auf den Ausgusskörper (2) aufgesetzten und schraubbaren Verschlusskappe (5) besteht, und wobei der Ausguss mit Mitteln versehen ist um die Schneidvorrichtung beim erstmaligen Öffnen der Ausgusskörper arranged cutting device (1) with a flange-side cutting system (4) and on the spout (2) mounted and screwed cap (5), and wherein the spout is provided with means to the cutting device when first opening the
Verschlusskappe in die Richtung des Flansches zu drehen und zu verschieben und dadurch den Beutel im Flanschbereich aufzuschneiden und dort eine Ausgiessöffnung zu schaffen, Turning and displacing the cap in the direction of the flange and thereby cutting the bag in the flange area and creating a pouring opening there,
- wobei das Schneidsystem (4) der Schneidvorrichtung (1 ) mindestens eine über einen Teil eines Schneidkreisumfanges verlaufende Schneidzahngruppe (1 1 ) aufweist, und  - wherein the cutting system (4) of the cutting device (1) has at least one over a part of a cutting circle circumference extending cutting tooth group (1 1), and
- wobei die Schneidzahngruppe (1 1 ) jeweils eine Anzahl von Schneidzähnen (12, 12a) aufweist, und - Wherein the cutting tooth group (1 1) each having a number of cutting teeth (12, 12 a), and
- wobei die Schneidzähne der Schneidzahngruppe (1 1 ) so angeordnet sind, dass ein in einer Schneidrichtung führender Schneidzahn (12a) in einer Axialrichtung (A) am weitesten vorsteht und die weiteren an den führenden Schneidzahn (12a) anschliessenden Schneidzähne (12) der  wherein the cutting teeth of the cutting tooth group (11) are arranged so that a cutting tooth (12a) leading in one cutting direction projects furthest in an axial direction (A) and the further cutting teeth (12) adjoining the leading cutting tooth (12a)
Schneidzahngruppe (1 1 ) in Axialrichtung (A) kontinuierlich abnehmend weniger weit vorstehen,  Cutting tooth group (1 1) projecting less far in the axial direction (A) continuously decreasing,
dadurch gekennzeichnet, dass characterized in that
- der in der Schneidzahngruppe (1 1 ) führende Schneidzahn (12a) eine parallel zum Flansch (3) verlaufende Abflachung (13a) aufweist und dass die weiteren an den führenden Schneidzahn (12a) anschliessenden Schneidzähne (12) der Schneidzahngruppe (1 1 ) fortwährend kleiner werdende gleich verlaufende Abflachungen (13) aufweisen. - in the cutting tooth group (1 1) leading cutting tooth (12 a) parallel to the flange (3) extending flattening (13 a) and that the other of the leading cutting tooth (12 a) adjoining cutting teeth (12) of the Cutting tooth group (1 1) continuously decreasing equally extending flats (13).
2. Wiederverschliessbarer Ausguss nach Patentanspruch 1 , dadurch gekennzeichnet, dass der in der Schneidrichtung führende Schneidzahn (12a) in Schneidrichtung (S) vorne eine geneigte Anfasung (14) an der Abflachung (13a) aufweist, die ein vorzeitiges Penetrieren der elastischen Folie vermeidet. 2. reclosable spout according to claim 1, characterized in that the leading in the cutting direction cutting tooth (12a) in the cutting direction (S) front an inclined chamfer (14) on the flattening (13a), which avoids premature penetration of the elastic film.
3. Wiederverschliessbarer Ausguss nach Patentanspruch 2, dadurch gekennzeichnet, dass die Anfasung (14) flächenhaft zulaufend in eine im3. resealable spout according to claim 2, characterized in that the chamfer (14) areally tapered in a in
Wesentlichen parallel zur Rotationsachse der Schneidvorrichtung (1 ) verlaufende Schneidkante (15) mündet. Essentially parallel to the rotational axis of the cutting device (1) extending cutting edge (15) opens.
4. Wiederverschliessbarer Ausguss nach einem der Patentansprüche 1 bis 3, dadurch gekennzeichnet, dass das Schneidsystem (4) der 4. resealable spout according to one of the claims 1 to 3, characterized in that the cutting system (4) of
Schneidvorrichtung (1 ) in einem Sektor des Schneidkreisumfanges eine Abflussaussparung hat.  Cutting device (1) has a drainage recess in a sector of the cutting circumference.
5. Wiederverschliessbarer Ausguss nach einem der Patentansprüche 1 bis 4, dadurch gekennzeichnet, dass das Schneidsystem (4) mehrere 5. resealable spout according to one of the claims 1 to 4, characterized in that the cutting system (4) more
Schneidzahngruppen (1 1 ) hat und diese Schneidzahngruppen über mindestens drei Viertel des Schneidkreisumfangs verteilt angeordnet sind um die axial wirkenden Kräfte beim Penetrierungsvorgang wenigstens annähernd  Cutting teeth groups (1 1) and these cutting teeth groups distributed over at least three quarters of the circumference of the cutting circle are at least approximately the axial forces acting in the Penetrierungsvorgang
auszugleichen. compensate.
6. Wiederverschliessbarer Ausguss nach Patentanspruch 3, dadurch gekennzeichnet, dass die Schneidvorrichtung (1 ) einen teilzylindrischen Körper (10) hat und die Schneidkante (15) in der Aussenfläche des Körpers (10) liegt. 6. resealable spout according to claim 3, characterized in that the cutting device (1) has a part-cylindrical body (10) and the cutting edge (15) in the outer surface of the body (10).
EP13727847.9A 2012-07-20 2013-06-03 Re-sealable pouring spout for a bag consisting of flexible film Active EP2874892B1 (en)

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DE102012212769.0A DE102012212769A1 (en) 2012-07-20 2012-07-20 Reclosable spout for a bag made of elastic film
PCT/EP2013/061341 WO2014012698A1 (en) 2012-07-20 2013-06-03 Re-sealable pouring spout for a bag consisting of flexible film

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US9415908B2 (en) 2016-08-16
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US20150175323A1 (en) 2015-06-25
DE102012212769A1 (en) 2014-01-23

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