EP1585678A1 - Tear-tab pouring part consisting of plastic and injection mould for producing said part - Google Patents

Tear-tab pouring part consisting of plastic and injection mould for producing said part

Info

Publication number
EP1585678A1
EP1585678A1 EP04700105A EP04700105A EP1585678A1 EP 1585678 A1 EP1585678 A1 EP 1585678A1 EP 04700105 A EP04700105 A EP 04700105A EP 04700105 A EP04700105 A EP 04700105A EP 1585678 A1 EP1585678 A1 EP 1585678A1
Authority
EP
European Patent Office
Prior art keywords
pouring
film
neck
pouring part
plastic
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
EP04700105A
Other languages
German (de)
French (fr)
Other versions
EP1585678B1 (en
Inventor
Wolfgang Zangerle
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.)
Schottli AG
Original Assignee
Schottli 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 Schottli AG filed Critical Schottli AG
Publication of EP1585678A1 publication Critical patent/EP1585678A1/en
Application granted granted Critical
Publication of EP1585678B1 publication Critical patent/EP1585678B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • Tearable pouring part made of plastic and injection mold for the production of the pouring part
  • the invention relates to a tear-open pouring part made of plastic for liquid, pasty or powdery products according to the preamble of patent claim 1.
  • the object of the invention is furthermore an injection molding tool according to the preamble of patent claim 8.
  • Tearable pouring parts make it easier to open plastic containers such as bottles and containers made of laminated materials such as beverage packs, such as brick packs, sacks and bags.
  • Such pouring parts are known in various designs. Pouring parts made exclusively of plastic have the disadvantage that their gas-vapor tightness is only guaranteed to a limited extent, particularly in the area of the opening cross section that can be torn open.
  • a known pouring part with improved gas vapor tightness comprises a metal foil glued under the opening to be broken open, which by pressing an overlying, firmly connected to the neck of the pouring disc made of plastic and can be broken open. Radial predetermined breaking lines are provided in the disc, which allow the disc to be pressed into the center.
  • a disadvantage of this pouring part are the fragments of the plastic cover and the torn-open metal foil which protrude radially into the interior of the container and are still connected to the neck and cannot be removed.
  • the object of the present invention is to provide a tear-open pouring part with maximum gas vapor tightness and a lid part which can be removed from the pouring part without leaving any residue after opening and previously closing the pouring opening.
  • the pouring part according to the invention not only ensures optimum gas vapor tightness in the region of the pouring opening, but also over the entire cross section of the pouring part, ie up to the periphery of the flange ring of the pouring part, which is glued to the container, Sealing or welding.
  • the cut edge of the metal foil, which is inserted into the injection mold prior to the injection of the pouring part, is also completely encapsulated by plastic, so that corrosion in the area of the cut edge by the filling material can be completely prevented.
  • the cover part spanning the pouring opening can be torn out effortlessly and without residues together with the metal foil underneath by means of a tear-open tab. be poured out of the pouring part.
  • the cross-section of the pouring spout is then available for the pouring spout.
  • the pouring part is produced inexpensively in a single work cycle within the injection mold. Reworking on the molding after demolding is no longer necessary.
  • the creation of the predetermined breaking line in the lid part on the circumference of the pouring opening and the connecting webs holding the lid part on the neck take place when the injection mold is closed. Additional post-processing and the associated handling can be omitted.
  • Figure 1 is a perspective view of the
  • Figure 2 is a perspective view of the
  • Figure 3 is a perspective view of the
  • Figure 4 shows a perspective
  • Figure 5 is an enlarged view of the groove (section A in Figure 4).
  • the pouring part designated by reference number 1 in the figures comprises a disk-shaped base or base plate 3 with a cylindrical jacket-shaped neck 5 placed thereon, if desired or necessary, a cover can be attached to the neck 5.
  • the base plate 3 surrounds the neck 5 on the outside as an annular disk 7 and in the interior of the neck 5 as a circular disk 9, which forms the cover part.
  • the cover part 9 further comprises an axially extending connecting web 13 which is spaced apart from the inside 11 of the neck 5 and which carries a tear-open tab 15 at its upper end.
  • the tear-open tab 15 is preferably designed as an annular body.
  • the cover part 9 inside the neck 5 is connected to the inside 11 of the latter by a plurality of connections 17.
  • the metal foil 23 preferably spans the entire surface of the base plate 3 with the exception of a narrow, for example 0.5-1 mm wide area 25 on the periphery of the base plate 3. In this circular area 25, the cut edge of the metal foil 23 produced as a stamped part is made of the plastic of the base plate 3 or the pouring part 1 and thus completely covered.
  • the metal foil 23 also spans the gaps 21 between the connections 17 or between the periphery 19 of the cover part 9 and the inside 11 of the neck 5.
  • the cross section of the gap 19 between the inside 11 of the neck 5 and the periphery 19 of the cover part 9 can V -shaped (not shown), V-shaped with a blunt tip (see Figure 5) or rectangular in cross-section (not shown).
  • the connections 17 can have a trapezoidal cross-section (compare FIGS. 1-3), the longer base lying on the periphery 19 of the cover part 9 and the shorter one on the inside 11 of the neck 5 and being connected there. Alternatively, the connections 17 can also have a rectangular shape (not shown).
  • the shape of the cover part 9 would change accordingly.
  • the pouring part 1 according to the invention is produced directly in an injection mold of an injection molding machine without additional post-processing. After inserting the film 23 serving as a barrier, the injection mold is closed.
  • the annular tool part delimiting the inside 11 of the neck 5 is configured on the cover part side with a holding and squeezing edge, which edge comes into non-positive contact with the film 23 inserted in the injection mold and presses it onto the injection mold.
  • the pressure 23 holds the film 23 in the inserted position, ie the periphery of the film lies at a distance of, for example, 0.5-1 mm from the wall of the injection mold, which forms the periphery of the base plate 3.
  • the holding edge of the injection mold not only serves to hold the film 23 exactly positioned, but it also prevents plastic from entering the surface of the film 23 in the area of the gaps 21.
  • the film 23 consequently remains in the area of the gaps 21 Free on both sides of plastic material from which the pouring part 1 is injected.
  • the plastic material flows through the connections 17 radially outwards, if the injection is preferably carried out in the center of the cover part 9. Moving, upsetting or injecting the film 23 is thereby prevented without problems.
  • the pouring part 1 After the application / insertion of the pouring part 1 in a container (not shown) or in a corresponding opening in the multilayer material forming the container and after the corresponding adhesive bonding to the latter, the pouring part 1 forms a completely vapor-tight closure.
  • the large overlap of the film 23 in the region of the flange part 7, i.e. the circular disc with the adjacent container material prevents radial penetration of gases or liquids from the outside of the container inside.
  • Opening the pouring part 1 according to the invention is extremely simple and, above all, safe.
  • the connections 17 are broken one after the other and the film 23 in the area of the gaps or slots 19 tears off without residue and remains on the torn off cover part 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

The invention relates to a pouring part (1) comprising a base plate (3), on which a neck (5) that surrounds the pouring opening is formed. The pouring opening is sealed by foil (23) that acts as a barrier and a lid part (9) that is mounted on the foil (23). The lid part (9) is connected to the neck (5) by radial connecting pieces (17). When the container is opened by pulling the tab (15), the flexurally resistant lid part (9) splits from the neck (5), tearing open the foil (23) lying below and thus exposing the entire pouring cross-section of the neck (5).

Description

Aufreissbarer Ausgussteil aus Kunststoff und Spritzwerkzeug zur Herstellung des AusgussteilsTearable pouring part made of plastic and injection mold for the production of the pouring part
Gegenstand der Erfindung ist ein aufreissbarer Ausgussteil aus Kunststoff für flüssige, pastöse oder pulverförmige Produkte gemäss Oberbegriff des Patentanspruchs 1. Gegenstand der Erfindung ist weiter ein Spritzwerkzeug gemäss Oberbegriff des Patentanspruchs 8.The invention relates to a tear-open pouring part made of plastic for liquid, pasty or powdery products according to the preamble of patent claim 1. The object of the invention is furthermore an injection molding tool according to the preamble of patent claim 8.
Aufreissbare Ausgussteile erleichtern das öffnen von Künststoffgebinden wie Flaschen und auch Gebinden aus laminierten Materialien wie Getränkepackungen, z.B. Brickpackungen, Säcke und Beutel. Solche Ausgussteile sind in verschiedenen Ausführungen bekannt. Ausschliesslich aus Kunststoff hergestellte Ausgussteile haben den Nachteil, dass deren Gasdampfdichtigkeit insbesondere im Bereich des aufreissbaren Öffnungsquerschnitts nur in beschränktem Umfange gewährleistet ist. Ein bekannter Ausgussteil mit verbesserter Gasdampfdichtigkeit umfasst eine unter die aufzubrechende Öffnung geklebte Metallfolie, welche durch Eindrücken einer darüber liegenden, fest mit dem Hals des Ausgussteils verbundenen Scheibe aus Kunststoff eingedrückt und aufgebrochen werden kann. In der Scheibe sind radial verlaufende Sollbruchlinien angebracht, die das Eindrücken der Scheibe ins Zentrum erlauben. Nachteilig an diesem Ausgussteil sind die nach dem Eindrücken radial in das Innere des Gebindes ragenden, mit dem Hals noch verbundenen Fragmente des Kunststoffdeckels und der aufgerissenen Metallfolie, die nicht entfernbar sind.Tearable pouring parts make it easier to open plastic containers such as bottles and containers made of laminated materials such as beverage packs, such as brick packs, sacks and bags. Such pouring parts are known in various designs. Pouring parts made exclusively of plastic have the disadvantage that their gas-vapor tightness is only guaranteed to a limited extent, particularly in the area of the opening cross section that can be torn open. A known pouring part with improved gas vapor tightness comprises a metal foil glued under the opening to be broken open, which by pressing an overlying, firmly connected to the neck of the pouring disc made of plastic and can be broken open. Radial predetermined breaking lines are provided in the disc, which allow the disc to be pressed into the center. A disadvantage of this pouring part are the fragments of the plastic cover and the torn-open metal foil which protrude radially into the interior of the container and are still connected to the neck and cannot be removed.
Aufgabe der vorliegenden Erfindung ist die Schaffung eines aufreissbaren Ausgussteils mit maximaler Gasdampfdichtigkeit und einem rückstandslos nach dem öffnen aus dem Ausgussteil entfernbaren, die Ausgussöffnung zuvor verschliessenden Deckelteil.The object of the present invention is to provide a tear-open pouring part with maximum gas vapor tightness and a lid part which can be removed from the pouring part without leaving any residue after opening and previously closing the pouring opening.
Gelöst wird diese Aufgabe durch einen aufreissbaren Ausgussteil gemäss den Merkmalen des Patentanspruchs 1. Besonders vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by a tear-open pouring part according to the features of claim 1. Particularly advantageous embodiments of the invention are defined in the dependent claims.
Mit dem erfindungsgemässen Ausgussteil ist nicht nur eine optimale Gasdampfdichtigkeit im Bereich der Ausgussöffnung gewährleistet, sondern über den gesamten Querschnitt des Ausgussteils, d.h. bis zur Peripherie des Flanschringes des Ausgussteils, welcher mit dem Gebinde durch Kleben, Siegeln oder Schweissen verbunden wird. Die Schnittkante der Metallfolie, welche vor dem Spritzen des Ausgussteils in die Spritzgussform eingelegt wird, wird ebenfalls von Kunststoff vollständig umspritzt, so dass eine Korrosion im Bereich der Schnittkante durch das Füllgut vollständig verhindert werden kann. Der die Ausgussöffnung überspannende Deckelteil kann beim Aufreissen mittels einer Aufreisslasche zusammen mit der darunter liegenden Metallfolie mühelos und rückstandsfrei aus. dem Ausgussteil herausgelöst werden. Der Querschnitt der Ausgussöffnung steht danach vollflächig für den Ausguss zur Verfügung. Die Herstellung des Ausgussteils erfolgt kostengünstig in einem einzigen Arbeitstakt innerhalb des Spritzwerkzeugs. Nacharbeiten sind am Spritzling nach dem Entformen nicht mehr notwendig. Die Erzeugung der Sollbruchlinie im Deckelteil am Umfang der Ausgussöffnung und die den Deckelteil am Hals haltenden Verbindungsstege findet beim Schliessen der Spritzgussform statt. Eine zusätzliche Nachbearbeitung und das damit zusammenhängende Handing kann entfallen.The pouring part according to the invention not only ensures optimum gas vapor tightness in the region of the pouring opening, but also over the entire cross section of the pouring part, ie up to the periphery of the flange ring of the pouring part, which is glued to the container, Sealing or welding. The cut edge of the metal foil, which is inserted into the injection mold prior to the injection of the pouring part, is also completely encapsulated by plastic, so that corrosion in the area of the cut edge by the filling material can be completely prevented. The cover part spanning the pouring opening can be torn out effortlessly and without residues together with the metal foil underneath by means of a tear-open tab. be poured out of the pouring part. The cross-section of the pouring spout is then available for the pouring spout. The pouring part is produced inexpensively in a single work cycle within the injection mold. Reworking on the molding after demolding is no longer necessary. The creation of the predetermined breaking line in the lid part on the circumference of the pouring opening and the connecting webs holding the lid part on the neck take place when the injection mold is closed. Additional post-processing and the associated handling can be omitted.
Anhand illustrierter Ausführungsbeispiele wird dieThe illustrated
Erfindung näher erläutert. Es zeigenInvention explained in more detail. Show it
Figur 1 eine perspektivische Darstellung desFigure 1 is a perspective view of the
Ausgussteils von oben, Figur 2 eine perspektivische Darstellung desPouring part from above, Figure 2 is a perspective view of the
Ausgussteils von unten, Figur 3 eine perspektivische Darstellung desPouring part from below, Figure 3 is a perspective view of the
Ausgussteils teilweise aufgeschnitten von oben,Pouring part partially cut open from above,
Figur 4 einen perspektivisch dargestelltenFigure 4 shows a perspective
Diagonalschnitt durch den Ausgussteil mit V- förmiger Rille und eine vergrösserte Darstellung einer V-förmigen Rille mit stumpfem Grund,Diagonal section through the pouring part with a V-shaped groove and an enlarged view of a V-shaped groove with a blunt base,
Figur 5 eine vergrösserte Darstellung der Rille (Ausschnitt A in Figur 4) .Figure 5 is an enlarged view of the groove (section A in Figure 4).
Der in den Figuren mit Bezugszeichen 1 bezeichnete Ausgussteil umfasst eine scheibenförmige Basis- oder Fussplatte 3 mit einem auf dieser aufgesetzten zylindermantelförmigen Hals 5. Am Hals 5 kann, falls erwünscht oder notwendig, ein Deckel aufgesetzt werden. Die Basisplatte 3 umgibt den Hals 5 aussen als kreisringförmige Scheibe 7 und im Innern des Halses 5 als Kreisscheibe 9, die den Deckelteil bildet. Der Deckelteil 9 umfasst weiter einen beabstandet zur Innenseite 11 des Halses 5 liegenden, axial verlaufenden Verbindungssteg 13, welcher an seinem oberen Ende eine Aufreisslasche 15 trägt. Die Aufreisslasche 15 ist vorzugsweise als kreisringförmiger Körper ausgebildet. Der Deckelteil 9 im Innern des Halses 5 ist mit der Innenseite 11 des letzteren durch eine Mehrzahl von Anbindungen 17 verbunden. Zwischen den benachbarten Anbindungen 17 und der Peripherie 19 des Deckelteils 9 liegt je ein Spalt 21 vor, d.h. die Peripherie des scheibenförmigen Deckelteils 9 ist in diesem Bereich nicht mit der Innenseite 15 des Halses 5 verbunden. Auf der Unterseite der Basisplatte 3 ist eine Barriere oder Dampfsperre in Gestalt einer Metallfolie 23, z.B. eine beschichtete Alufolie aufgebracht. Die Metallfolie 23 überspannt vorzugsweise die gesamte Fläche der Basisplatte 3 mit Ausnahme eines schmalen, beispielsweise 0,5 - 1mm breiten Bereichs 25 an der Peripherie der Basisplatte 3. In diesem kreisringförmigen Bereich 25 ist die Schnittkante der als Stanzteil gefertigten Metallfolie 23 vom Kunststoff der Basisplatte 3 bzw. des Ausgussteils 1 umschlossen und damit vollständig abgedeckt. Die Metallfolie 23 überspannt auch die Spalten 21 zwischen den Anbindungen 17 bzw. zwischen der Peripherie 19 des Deckelteils 9 und der Innenseite 11 des Halses 5. Der Querschnitt des Spaltes 19 zwischen der Innenseite 11 des Halses 5 und der Peripherie 19 des Deckelteils 9 kann V-förmig (keine Abbildung) , V-förmig mit stumpfer Spitze (vergleiche Figur 5) oder im Querschnitt rechteckförmig (keine Abbildung) ausgebildet sein. Die Anbindungen 17 können einen trapezförmigen Querschnitt aufweisen (vergleiche Figuren 1-3), wobei die längere Basis an der Peripherie 19 des Deckelteils 9 und die kürzere an der Innenseite 11 des Halses 5 liegen und dort angebunden sind. Alternativ können die Anbindungen 17 auch rechteckförmig ausgebildet sein (keine Abbildung) . Alternativ zu der in den Figuren dargestellten kreisförmigen Basisplatte 3 könnte diese auch eine beliebige andere Gestalt aufweisen, z.B. eine mehreckige Peripherie aufweisen. Das Gleiche gilt für den Hals 5, der ebenfalls statt im Querschnitt kreisförmig oval oder mehreckig ausgestaltet sein könnte. Entsprechend würde sich die Gestalt des Deckelteils 9 verändern.The pouring part designated by reference number 1 in the figures comprises a disk-shaped base or base plate 3 with a cylindrical jacket-shaped neck 5 placed thereon, if desired or necessary, a cover can be attached to the neck 5. The base plate 3 surrounds the neck 5 on the outside as an annular disk 7 and in the interior of the neck 5 as a circular disk 9, which forms the cover part. The cover part 9 further comprises an axially extending connecting web 13 which is spaced apart from the inside 11 of the neck 5 and which carries a tear-open tab 15 at its upper end. The tear-open tab 15 is preferably designed as an annular body. The cover part 9 inside the neck 5 is connected to the inside 11 of the latter by a plurality of connections 17. There is a gap 21 between the adjacent connections 17 and the periphery 19 of the cover part 9, ie the periphery of the disc-shaped cover part 9 is not connected to the inside 15 of the neck 5 in this area. A barrier or vapor barrier in the form of a metal foil 23, for example a coated aluminum foil, is applied to the underside of the base plate 3. The metal foil 23 preferably spans the entire surface of the base plate 3 with the exception of a narrow, for example 0.5-1 mm wide area 25 on the periphery of the base plate 3. In this circular area 25, the cut edge of the metal foil 23 produced as a stamped part is made of the plastic of the base plate 3 or the pouring part 1 and thus completely covered. The metal foil 23 also spans the gaps 21 between the connections 17 or between the periphery 19 of the cover part 9 and the inside 11 of the neck 5. The cross section of the gap 19 between the inside 11 of the neck 5 and the periphery 19 of the cover part 9 can V -shaped (not shown), V-shaped with a blunt tip (see Figure 5) or rectangular in cross-section (not shown). The connections 17 can have a trapezoidal cross-section (compare FIGS. 1-3), the longer base lying on the periphery 19 of the cover part 9 and the shorter one on the inside 11 of the neck 5 and being connected there. Alternatively, the connections 17 can also have a rectangular shape (not shown). As an alternative to the circular base plate 3 shown in the figures, this could also have any other shape, for example a polygonal periphery. The same applies to the neck 5, which could also be oval or polygonal instead of circular in cross section. The shape of the cover part 9 would change accordingly.
Die Herstellung des erfindungsgemässen Ausgussteils 1 erfolgt direkt in einer Spritzgussform einer Spritzgussmaschine ohne zusätzliche Nachbearbeitung. Nach dem Einlegen, der als Barriere dienenden Folie 23, wird die Spritzguεsform geschlossen. Der die Innenseite 11 des Halses 5 begrenzende ringförmige Werkzeugteil ist deckelteilseitig mit einer Halte- und Quetschkante ausgestaltet, welche Kante in kraftschlüssige Anlage mit der in der Spritzgussform eingelegten Folie 23 gelangt und diese an die Spritzgussform anpresst. Durch die Anpresskraft wird die Folie 23 in der eingelegten Position festgehalten, d.h. die Peripherie der Folie liegt in einem Abstand von beispielsweise 0,5 - 1mm zur Wandung der Spritzgussform, welche die Peripherie der Basisplatte 3 bildet. Die Haltekante der Spritzgussform dient nicht nur dazu, die Folie 23 exakt positioniert festzuhalten, sondern sie verhindert im Bereich der Spalten 21 den Zutritt von Kunststoff auf die Oberfläche der Folie 23. Die Folie 23 verbleibt folglich im Bereich der Spalten 21 beidseitig frei von Kunststoffmaterial, aus dem das Ausgussteil 1 gespritzt wird. Das Kunststoffmaterial fliesst, wenn vorzugsweise die Anspritzung im Zentrum des Deckelteils 9 erfolgt, durch die Anbindungen 17 radial nach aussen. Ein Verschieben, Aufstauchen oder Unterspritzen der Folie 23 wird dadurch einwandfrei unterbunden.The pouring part 1 according to the invention is produced directly in an injection mold of an injection molding machine without additional post-processing. After inserting the film 23 serving as a barrier, the injection mold is closed. The annular tool part delimiting the inside 11 of the neck 5 is configured on the cover part side with a holding and squeezing edge, which edge comes into non-positive contact with the film 23 inserted in the injection mold and presses it onto the injection mold. The pressure 23 holds the film 23 in the inserted position, ie the periphery of the film lies at a distance of, for example, 0.5-1 mm from the wall of the injection mold, which forms the periphery of the base plate 3. The holding edge of the injection mold not only serves to hold the film 23 exactly positioned, but it also prevents plastic from entering the surface of the film 23 in the area of the gaps 21. The film 23 consequently remains in the area of the gaps 21 Free on both sides of plastic material from which the pouring part 1 is injected. The plastic material flows through the connections 17 radially outwards, if the injection is preferably carried out in the center of the cover part 9. Moving, upsetting or injecting the film 23 is thereby prevented without problems.
Nach dem Aufbringen/Einsetzen des Ausgussteils 1 in ein Gebinde (nicht dargestellt) oder in eine entsprechende Öffnung, in dem das Gebinde bildenden Mehrschichtmaterial und nach dem entsprechenden Verkleben mit letzterem, bildet das Ausgussteil 1 einen völlig dampfdichten Verschluss. Die grosse Überlappung der Folie 23 im Bereich des Flanschteils 7, d.h. der kreisringförmigen Scheibe mit dem anliegenden Gebindematerial, verhindert eine radial verlaufende Penetration von Gasen oder Flüssigkeit von der Gebindeaussenseite in dessen Inneres.After the application / insertion of the pouring part 1 in a container (not shown) or in a corresponding opening in the multilayer material forming the container and after the corresponding adhesive bonding to the latter, the pouring part 1 forms a completely vapor-tight closure. The large overlap of the film 23 in the region of the flange part 7, i.e. the circular disc with the adjacent container material prevents radial penetration of gases or liquids from the outside of the container inside.
Das öffnen des erfindungsgemässen Ausgussteils 1 ist äusserst einfach und vor allem sicher. Durch Anheben der Lasche 15 und Ziehen in axialer Richtung werden die Anbindungen 17 nacheinander gebrochen und die Folie 23 im Bereich der Spalten oder Schlitze 19 reisst rückstandsfrei ab und verbleibt am abgerissenen Deckelteil 9. Opening the pouring part 1 according to the invention is extremely simple and, above all, safe. By lifting the tab 15 and pulling in the axial direction, the connections 17 are broken one after the other and the film 23 in the area of the gaps or slots 19 tears off without residue and remains on the torn off cover part 9.

Claims

Patentansprüche claims
1. Aufreissbarer Ausgussteil (1) aus Kunststoff für ein Gebinde für flüssige, pastöse oder pulverförmige Füllgüter, mit einem Flansch (7) und einen am Flansch (7) angebrachten, die Ausgussöffnung umfassenden Hals (5) , an dem ein Wiederverschlussmittel befestigbar ist und mit einer in der Ebene des Flansches (5) liegenden und die Ausgussöffnung überspannenden, beim öffnen aufbrechbaren und als Dampfsperre dienenden Folie1. Tearable pouring part (1) made of plastic for a container for liquid, pasty or powdery filling goods, with a flange (7) and a neck (5) attached to the flange (7), to which a reclosable means can be attached and with a film lying in the plane of the flange (5) and spanning the pouring opening, which can be broken open when opening and serves as a vapor barrier
(23) , dadurch gekennzeichnet, dass die Folie (23) an der Unterseite des Flansches (7) angeordnet ist und die Unterseite des Ausgussteils (1) überspannt und dass im Bereich der Ausgussöffnung im Innern des Halses (5) die Folie (23) von einer scheibenförmigen Kunststoffschicht als Deckelteil (9) überdeckt ist, der durch mehrere peripher angeordnete Anbindungen (17) mit der Innenseite (11) des Halses (5) verbunden ist.(23), characterized in that the film (23) is arranged on the underside of the flange (7) and spans the underside of the pouring part (1) and that in the region of the pouring opening in the interior of the neck (5) the film (23) is covered by a disc-shaped plastic layer as a cover part (9) which is connected to the inside (11) of the neck (5) by a plurality of peripherally arranged connections (17).
2. Ausgussteil nach Anspruch 1, dadurch gekennzeichnet, dass die Peripherie (19) des Deckelteils (9) unter Bildung eines Spaltes (21) beabstandet zur Innenseite (11) des Halses (5) liegt und dass der Spalt (21) durch die Anbindungen (17) in mehrere Abschnitte unterteilt ist. 2. Pouring part according to claim 1, characterized in that the periphery (19) of the cover part (9) with a gap (21) spaced apart from the inside (11) of the neck (5) and that the gap (21) through the connections (17) is divided into several sections.
3. Ausgussteil nach Anspruch 2, dadurch gekennzeichnet, dass der Spalt (21) zwischen dem Deckelteil (9) und dem Hals (5) unten durch die Folie (23) geschlossen ist.3. pouring part according to claim 2, characterized in that the gap (21) between the cover part (9) and the neck (5) is closed at the bottom by the film (23).
4. Ausgussteil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Folie (23) beim Spritzen des Ausgussteils (1) mit dessen Unterseite verbunden wird.4. pouring part according to one of claims 1 to 3, characterized in that the film (23) is connected to the underside when the pouring part (1) is sprayed.
5. Ausgussteil nach Anspruch 4, dadurch gekennzeichnet, dass die Peripherie oder Folie (23) in einem Abstand zur Peripherie der Basisplatte (3) liegt und die Kante der Folie von Kunststoff umspritzt ist.5. pouring part according to claim 4, characterized in that the periphery or film (23) is at a distance from the periphery of the base plate (3) and the edge of the film is extrusion-coated with plastic.
6. Ausgussteil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Anbindungen (17) trapezförmig oder rechteckförmig ausgebildet sind.6. pouring part according to one of claims 1 to 5, characterized in that the connections (17) are trapezoidal or rectangular.
7. Ausgussteil nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass am Deckelteil (9) eine Aufreisslasche (15) mit einem Verbindungssteg (13) verbunden ist.7. pouring part according to one of claims 1 to 6, characterized in that on the cover part (9) a tear tab (15) is connected to a connecting web (13).
8. Spritzwerkzeug zur Herstellung eines Ausgussteils (1) nach Anspruch 1, dadurch gekennzeichnet, dass der die Innenseite (11) des Halses (5) bildende Teil des Werkzeugs eine Halte- und Quetschkante umfasst, welche die in das Werkzeug eingelegte Folie (23) an die Gegenform anpresst und festhält und ein Eindringen von Kunststoff in den zu bildenden Spalt (21) und auf die Folie (23) verhindert. 8. injection mold for producing a pouring part (1) according to claim 1, characterized in that the inside (11) of the neck (5) forming part of the Tool comprises a holding and squeezing edge which presses and holds the film (23) inserted in the tool against the counter mold and prevents plastic from penetrating into the gap (21) to be formed and onto the film (23).
EP04700105A 2003-01-08 2004-01-05 Tear-tab pouring part consisting of plastic and injection mould for producing said part Expired - Lifetime EP1585678B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH282003 2003-01-08
CH282003 2003-01-08
PCT/CH2004/000001 WO2004063033A1 (en) 2003-01-08 2004-01-05 Tear-tab pouring part consisting of plastic and injection mould for producing said part

Publications (2)

Publication Number Publication Date
EP1585678A1 true EP1585678A1 (en) 2005-10-19
EP1585678B1 EP1585678B1 (en) 2008-04-02

Family

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Application Number Title Priority Date Filing Date
EP04700105A Expired - Lifetime EP1585678B1 (en) 2003-01-08 2004-01-05 Tear-tab pouring part consisting of plastic and injection mould for producing said part

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Country Link
EP (1) EP1585678B1 (en)
AT (1) ATE391084T1 (en)
DE (1) DE502004006717D1 (en)
ES (1) ES2305709T3 (en)
WO (1) WO2004063033A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090297070A1 (en) 2008-05-29 2009-12-03 Berman Ronald H Zip sealed flexible pouch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547061Y2 (en) * 1987-09-24 1993-12-10
WO1996014249A2 (en) * 1994-11-07 1996-05-17 Capitol Spouts, Inc. Container having improved reclosable pour spout mounted thereon and process therefor
JP2000302147A (en) * 1999-02-16 2000-10-31 Ishida Co Ltd Container lid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004063033A1 *

Also Published As

Publication number Publication date
WO2004063033A1 (en) 2004-07-29
ES2305709T3 (en) 2008-11-01
DE502004006717D1 (en) 2008-05-15
ATE391084T1 (en) 2008-04-15
EP1585678B1 (en) 2008-04-02

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