EP3377417A1 - Can lid - Google Patents

Can lid

Info

Publication number
EP3377417A1
EP3377417A1 EP16794325.7A EP16794325A EP3377417A1 EP 3377417 A1 EP3377417 A1 EP 3377417A1 EP 16794325 A EP16794325 A EP 16794325A EP 3377417 A1 EP3377417 A1 EP 3377417A1
Authority
EP
European Patent Office
Prior art keywords
lid
tongue
opening
gap
tab
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
EP16794325.7A
Other languages
German (de)
French (fr)
Other versions
EP3377417B1 (en
Inventor
Klaus Thielen
Eva-Maria Thielen
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.)
Piech Gregor Anton
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PL16794325T priority Critical patent/PL3377417T3/en
Priority to RS20200379A priority patent/RS60228B1/en
Priority to SI201630687T priority patent/SI3377417T1/en
Publication of EP3377417A1 publication Critical patent/EP3377417A1/en
Application granted granted Critical
Publication of EP3377417B1 publication Critical patent/EP3377417B1/en
Priority to HRP20200486TT priority patent/HRP20200486T1/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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/404—Details of the lines of weakness
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0014—Action for opening container pivot tab and push-down tear panel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0016—Action for opening container pivot tab, push-down and pull-out tear panel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/008—Materials of container end panel
    • B65D2517/0082—Coated or laminated metal

Definitions

  • the invention relates to a can lid, in particular for beverage cans, with a provided in the metallic lid material of a lid surface limited opening area, and a particular opening of this opening range two-armed lever member which is fixed to the lid material, in particular via riveting or welding.
  • Can lids of this type are used on an extremely large scale worldwide. They are simple and inexpensive to produce and allow a space-saving stacking of cans and opening the cans by simply swinging up the long arm of the lever organ.
  • these generally known can lids have some serious disadvantages, which consist primarily in that the first lying flat on the lid surface lever part is not easy to take that when pivoting the lever member and the case taking place opening the can of the opening portion first closing lid portion is pressed into the can interior and there comes in contact with the liquid, which is not hygienic properly, and that during the opening process, ie, when the existing weakening between the opening portion and the lid surface is torn or severed, inevitably tiny aluminum particles from the lid material become free and also get into the can directly or via the pressed into the can interior lid portion.
  • the object of the present invention is to provide a can lid of the type mentioned at the outset without at least one of the disadvantages mentioned above, ie in particular a can lid which can be opened more easily and handled with much less force compared to the conventional can lid, is hygienic and above all precludes the occurrence of aluminum chips or aluminum microparticles during the opening process. Otherwise, a can provided with the lid according to the invention should correspond to the conventional cans with regard to the storage of the respective contents, the production, transport and handling properties.
  • the opening portion is formed as a tongue flap, which is separated from the lid surface by an extending over the tab circumference micro-gap, in particular a punching gap, and connected to the lid surface tongue strap base at Opening effect becomes effective kink bearing forms, and that the underside of the metallic lid is in particular the entire surface with a plastic material, in particular a plastic film firmly adhering coated and this coating the micro-gap between the tongue flap and lid surface adjacent weakened running, in particular notched and preferably at least partially notched.
  • the interaction between the proposed micro-gap and provided on the lid bottom plastic film adjacent to the micro-gap between tongue tab and lid surface is weakened or notched so that on the one hand the opening of the box on the two-armed lever with surprising low power possible and on the other hand, the requirements for the tightness of the box is still guaranteed safe.
  • the micro-gap is thereby preferably by a punching operation with subsequent return of the pressed by the punching of the can lid material tongue flap in its initial position in front of the Received punching.
  • the slight, ie with little force possible opening of the can is a consequence of the fact that no cutting of metal is necessary and the bottom sheet is peeled off due to the notch during opening only in a very narrow range.
  • the two-armed lever member is fixed to the lid surface and the short lever arm pivots the tongue flap during the opening process together with the sub-area covered by the line of weakness Plastic coating in the can interior, this is made possible by the score line is located outside of the micro-gap. This eliminates any annoying chip formation during the opening process and ensures that the can is opened with little force.
  • a preferred development of the basic principle according to the invention is that the two-armed lever member is attached to the tongue flap and with its short lever arm on the lid surface, in particular on a stiffening region of the lid surface can be supported, and that the long lever arm the tongue flap during the opening process together with the underside covering , pivoted by the arranged within the micro-gap line of weakness limited portion of the plastic coating to the outside.
  • This embodiment combines all achievable advantages of the invention in itself, since in comparison to the conventional can lids the opening process requires a much lower force, the occurrence of aluminum chips or aluminum microparticles is completely avoided during the opening process and also an optimum is achieved in terms of hygiene, because a thaw Chen of can lid parts in the can interior and thus in the can located in the can liquid is prevented.
  • An advantageous embodiment of the invention for all embodiments is characterized in that the tongue flap of the metallic can lid is separated from the surrounding lid surface to form interlocking projections and recesses by a cutting, in particular a punching process, and that the tongue flap and the this adjacent cover surface over the projections and recesses positively and non-positively connected to form the micro-gap, the tightness of the finished, unopened can lid is ensured by the inner plastic coating or film.
  • the sealing ability against internal can pressure is improved by a concave formation of the tongue flap.
  • the projections and the recesses are preferably coupled via undercuts.
  • the longer arm of the two-armed lever element is formed by a grip tab, in particular a ring tab, and the two-armed lever member is connected eccentrically with the tongue tab, in particular at the edge side.
  • the invention also encompasses all cans which are provided with a can lid according to the invention, which is preferably connected to the respective can via a respective flanged edge, wherein in particular the plastic film provided on the cover side undertakes a sealing function in the connection area between the can lid and the can and the selectively positioned notch allows opening with little force.
  • a can lid according to the invention which is preferably connected to the respective can via a respective flanged edge, wherein in particular the plastic film provided on the cover side undertakes a sealing function in the connection area between the can lid and the can and the selectively positioned notch allows opening with little force.
  • FIG. 1 is a schematic plan view of a can lid in the closed state
  • Fig. 2 is a sectional view taken along a diameter of the can lid of FIG. 1
  • Fig. 3 is an enlarged partial view of the sectional view according to
  • Fig. 4 is a perspective oblique view of the can lid from above.
  • Fig. 1 shows an embodiment of the can lid 1 according to the invention in a schematic plan view.
  • a bead 2 wherein the area lying within the bead 2 is formed by a lid surface 3, which has an opening portion 4 formed as a tongue flap relative to the center.
  • This metallic can lid made of aluminum material is provided surrounding the opening area 4 with a stiffening area 14 formed by material deformation.
  • a two-armed lever 5, 6 is connected, in particular riveted or welded, with the opening region 4 or the tongue flap of the can lid, so that a fixed connection point 7 results.
  • connection point 7 lies in the edge region of the opening region 4, ie opposite the tongue base connected to the cover surface (3), and the two-armed lever consists of a shorter and a longer region, the longer lever preferably of a good engageable ring tab 5 and the shorter portion is formed by a support leg 6, which is supported on the pivoting of the longer lever on a portion of the stiffening portion 14 of the can lid.
  • the two-armed lever 5, 6 is in the initial state substantially parallel to the lid surface.
  • the tongue flap which forms the opening region 4 is positively and non-positively connected via protrusions 12 and recesses 13 and preferably via suitable undercuts of these parts to the cover surface 3, with the exception of the region of the tongue base 7 where the opening region 4 and the cover surface 3 are metallically connected are, so that practically on a kind of articulated joint 9 when opening the can pivoting of the tongue tab 3 is made possible by means of the lever and then tongue tab and lever outside the Doseninnen- space under release of the opening can reach a rest position.
  • the required tightness of the can lid despite the lack of continuous metallic connection between the lid surface 3 and opening portion 4 in the region of the toothing by a on the underside of the metallic lid in particular over the entire surface attached plastic material, in particular a suitable plastic film, ensures that adhering to the underside of the lid brought or sealed is.
  • This coating has immediately adjacent and within the opening line or the micro-gap a pronounced weakening 14, in particular a single or partial notch, so that when opening the can lid and the pulling up of the tongue tab 4 of the narrow, 3 the micro gap overlapping area of the plastic film practically from Peeled off metal and thus a low effort opening the can is possible.
  • the opening area or the tongue flap is produced by a cutting or, preferably, cutting edge during the manufacture of the can lid a punching operation, the tongue tab separated from the surrounding lid surface, the resulting chips or microparticles can be completely and easily eliminated in the manufacturing process.
  • the tongue tab which is still connected via its base with the cover surface 3, is pressed immediately after its punching back into the lid surface plane, so that the lid surface practically returns the original appearance, but now with a micro-gap produced by the punching process.
  • a line-shaped micro-gap preferably interengaging projections 12 and recesses 13 are produced during the punching process, as can be seen from FIG.
  • the two initially partially separated components are interlocked again in a form-fitting manner, so that the can lid can be handled in further manufacturing steps in the same way as conventional can lids, which have only one weakening groove.
  • the operations of separating and nesting are done in direct succession, i. on the punching stroke takes place in the return stroke, the positive merging of the two parts into a total part.
  • the positive and non-positive connection between the two areas is achieved by suitable shaping or by using undercuts, which ensures a sufficient mutual mechanical connection, so that then the necessary coating operations or the process of applying the film on the underside as in a single part.
  • the opening area or the tongue flap is connected to the lid surface 3 via the kink storage area 9 and the micro-gap is covered by the inside, provided with a notch plastic film.
  • the plastic film which may be a PP film, which reacts with the sealant provided on the metal during sealing, is produced, in particular, as an independent blister molding in which the notch is already provided. For example, if the film has a thickness of about 2/10 mm, the score will weaken to 1/100 mm.
  • connection point 7 in the manner of a rivet bond, especially the full-surface attachment of the plastic film 10 on the underside of the can lid and in particular the preferably achieved by a notch and / or regional notch formation of the line of weakness in the plastic film 10, which extends around the opening region 4 inside or outside the micro-gap, depending on the embodiment.
  • FIG. 4 shows the design features already described in a particularly vivid manner and can also be seen that the longer lever arm forming ring tab 5 due to a recess provided in the lid surface 3 comfortably with a finger under the handles and can be pivoted upwards for opening , During this pivoting up of the gripping lug 5, the shorter lever 6 is supported on the stiffened region 14, whereby the opening area 4 is simultaneously undercut and now without chip formation the particular positive connection of the lid surface 3 and the tongue flap 4 and 4 during the pulling up of the ring tab under separation and dissolution of the present at the bottom of the lid plastic film, the can is opened.
  • the ring tab 5 and raised with her opening portion 3 are pivoted in the free right area of the can lid on the lying in Fig. 4 below the free end of the ring tab kink storage area 9 and remain there with the box open.
  • closure and opening system described for a can lid can be used in an analogous manner for other vessels and packaging, which should be equipped with a zipper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

The description is given of a can lid which is intended, in particular, for drinks cans and differs from the generally known metallic can lids in that the opening region (4) is designed in the form of a tongue-like lug which is separated from the lid surface (3) by way of a microgap (8), in particular a punched gap, extending over the circumference of the lug, and which along with the tongue-like-lug base, which is connected to the lid surface, forms a bending-action bearing means (9), which takes effect during the opening operation, and in that the underside of the metallic lid is coated in a firmly adhering manner, in particular over the entire surface area, with a plastics material, in particular a plastics film (10), and this coating is of weakened design, in particular is notched, adjacent to the microgap between the tongue-like lug and lid surface.

Description

DOSENDECKEL  CAN COVER
Die Erfindung betrifft einen Dosendeckel, insbesondere für Getränkedosen, mit einem im metallischen Deckelmaterial einer Deckelfläche vorgesehenen begrenzten Öffnungsbereich, sowie einem zum Öffnen dieses Öffnungsbereichs bestimmten zweiarmigen Hebelorgan, das mit dem Deckelmaterial fest, insbesondere über eine Vernietung oder Verschweißung verbunden ist. The invention relates to a can lid, in particular for beverage cans, with a provided in the metallic lid material of a lid surface limited opening area, and a particular opening of this opening range two-armed lever member which is fixed to the lid material, in particular via riveting or welding.
Dosendeckel dieser Art werden weltweit in äußerst großem Umfang verwendet. Sie sind einfach und kostengünstig herstellbar und ermöglichen eine raumsparende Stapelung von Dosen sowie ein Öffnen der Dosen durch einfaches Hoch- schwenken des langen Arms des Hebelorgans. Diese allgemein bekannten Dosendeckel weisen jedoch einige gravierende Nachteile auf, die vor allem darin bestehen, dass das zunächst flach auf der Deckelfläche liegende Hebelteil nicht einfach zu ergreifen ist, dass beim Hochschwenken des Hebelorgans und dem dabei erfolgenden Öffnen der Dose der den Öffnungsbereich zunächst verschließende Deckelteilbereich in das Doseninnere gedrückt wird und dort mit der Flüssigkeit in Berührung kommt, was hygienisch nicht einwandfrei ist, und dass beim Öffnungsvorgang, d.h. dann, wenn die vorhandene Schwächungsnut zwischen dem Öffnungsbereich und der Deckelfläche aufgerissen bzw. durchtrennt wird, unvermeidbar winzige Aluminiumteilchen aus dem Deckelmaterial frei werden und auch direkt oder über den in das Doseninnere gedrückten Deckelteilbereich in die Dose gelangen. Diese winzigen Späne bzw. Aluminiumpartikel sind in gesundheitlicher Hinsicht bedenklich, wenn sie zusammen mit dem Getränk in den menschlichen Körper gelangen. Aufgabe der vorliegenden Erfindung ist es, einen Dosendeckel der eingangs genannten Art ohne zumindest einem der vorstehend genannten Nachteile zu schaffen, d.h. insbesondere einen Dosendeckel, der sich im Vergleich zu den herkömmlichen Dosendeckeln mit wesentlich geringerem Kraftaufwand und in der Handha- bung einfacher öffnen lässt, hygienisch einwandfrei ist und vor allem das Auftreten von Aluminiumspänen bzw. Aluminium-Mikropartikelchen beim Öffnungsvorgang ausschließt. Ansonsten soll eine mit dem erfindungsgemäßen Deckel versehene Dose hinsichtlich der Aufbewahrung des jeweiligen Inhalts, der Fertigungs-, Transport- und Handlingeigenschaften den herkömmlichen Dosen entsprechen. Can lids of this type are used on an extremely large scale worldwide. They are simple and inexpensive to produce and allow a space-saving stacking of cans and opening the cans by simply swinging up the long arm of the lever organ. However, these generally known can lids have some serious disadvantages, which consist primarily in that the first lying flat on the lid surface lever part is not easy to take that when pivoting the lever member and the case taking place opening the can of the opening portion first closing lid portion is pressed into the can interior and there comes in contact with the liquid, which is not hygienic properly, and that during the opening process, ie, when the existing weakening between the opening portion and the lid surface is torn or severed, inevitably tiny aluminum particles from the lid material become free and also get into the can directly or via the pressed into the can interior lid portion. These tiny chips or aluminum particles are of health concern when they enter the human body along with the beverage. The object of the present invention is to provide a can lid of the type mentioned at the outset without at least one of the disadvantages mentioned above, ie in particular a can lid which can be opened more easily and handled with much less force compared to the conventional can lid, is hygienic and above all precludes the occurrence of aluminum chips or aluminum microparticles during the opening process. Otherwise, a can provided with the lid according to the invention should correspond to the conventional cans with regard to the storage of the respective contents, the production, transport and handling properties.
Gelöst wird diese Aufgabe nach einer ersten Ausführungsform der Erfindung im Wesentlichen dadurch, dass der Öffnungsbereich als Zungenlasche ausgebildet ist, die von der Deckelfläche durch einen sich über den Laschenumfang erstreckenden Mikrospalt, insbesondere einen Stanzspalt, getrennt ist und die mit der Deckelfläche verbundene Zungenlaschenbasis ein beim Öffnungsvorgang wirksam werdendes Knicklager bildet, und dass die Unterseite des metallischen Deckels insbesondere vollflächig mit einem Kunststoffmaterial, insbesondere einer Kunststofffolie festhaftend beschichtet ist und diese Beschichtung dem Mikrospalt zwischen Zungenlasche und Deckelfläche benachbart geschwächt ausgeführt, insbesondere eingekerbt und vorzugsweise wenigstens teilweise durchgekerbt ist. This object is achieved according to a first embodiment of the invention essentially in that the opening portion is formed as a tongue flap, which is separated from the lid surface by an extending over the tab circumference micro-gap, in particular a punching gap, and connected to the lid surface tongue strap base at Opening effect becomes effective kink bearing forms, and that the underside of the metallic lid is in particular the entire surface with a plastic material, in particular a plastic film firmly adhering coated and this coating the micro-gap between the tongue flap and lid surface adjacent weakened running, in particular notched and preferably at least partially notched.
Von besonderer Bedeutung ist bei dieser Ausführungsform der Erfindung das Zusammenwirken zwischen dem vorgesehenen Mikrospalt und der an der Deckelunterseite vorgesehenen Kunststofffolie, die dem Mikrospalt zwischen Zungenlasche und Deckelfläche benachbart so geschwächt bzw. eingekerbt ist, dass einerseits das Öffnen der Dose über den zweiarmigen Hebel mit überraschend geringer Kraft möglich und andererseits trotzdem die Anforderungen an die Dichtheit der Dose sicher gewährleistet ist. Der Mikrospalt wird dabei vorzugsweise durch einen Stanzvorgang mit anschließender Rückführung der durch das Stanzen aus dem Dosendeckelmaterial gedrückten Zungenlasche in ihre Ausgangsposition vor dem Stanzen erhalten. Das leichte, d.h. mit geringer Kraft mögliche Öffnen der Dose ist eine Folge davon, dass kein Durchtrennen von Metall nötig ist und die unterseitige Folie aufgrund der Kerbung während des Öffnens nur in einem sehr schmalen Bereich abgeschält wird. Of particular importance in this embodiment of the invention, the interaction between the proposed micro-gap and provided on the lid bottom plastic film adjacent to the micro-gap between tongue tab and lid surface is weakened or notched so that on the one hand the opening of the box on the two-armed lever with surprising low power possible and on the other hand, the requirements for the tightness of the box is still guaranteed safe. The micro-gap is thereby preferably by a punching operation with subsequent return of the pressed by the punching of the can lid material tongue flap in its initial position in front of the Received punching. The slight, ie with little force possible opening of the can is a consequence of the fact that no cutting of metal is necessary and the bottom sheet is peeled off due to the notch during opening only in a very narrow range.
Nach einer Ausgestaltung des vorstehenden Grundprinzips des Zusammenwirkens von Mikrospalt und an der Deckelunterseite vorgesehenen Kunststoffbe- schichtung ist das zweiarmige Hebelorgan an der Deckelfläche befestigt und der kurze Hebelarm verschwenkt die Zungenlasche beim Öffnungsvorgang zusam- men mit dem sie unterseitig bedeckenden, durch die Schwächungslinie begrenzten Teilbereich der Kunststoffbeschichtung in das Doseninnere, wobei dies dadurch ermöglicht wird, dass die Kerbungslinie außerhalb des Mikrospalts gelegen ist. Damit wird jegliche störende Spanbildung beim Öffnungsvorgang ausgeschlossen und ein mit geringer Kraft mögliches Öffnen der Dose sichergestellt. According to one embodiment of the above basic principle of the interaction of micro gap and provided on the cover bottom plastic coating the two-armed lever member is fixed to the lid surface and the short lever arm pivots the tongue flap during the opening process together with the sub-area covered by the line of weakness Plastic coating in the can interior, this is made possible by the score line is located outside of the micro-gap. This eliminates any annoying chip formation during the opening process and ensures that the can is opened with little force.
Eine bevorzugte Weiterbildung des erfindungsgemäßen Grundprinzips besteht darin, dass das zweiarmige Hebelorgan an der Zungenlasche befestigt und mit seinem kurzen Hebelarm auf der Deckelfläche, insbesondere auf einem Versteifungsbereich der Deckelfläche abstützbar ist, und dass der lange Hebelarm die Zungenlasche beim Öffnungsvorgang zusammen mit dem sie unterseitig bedeckenden, durch die innerhalb des Mikrospalts angeordnete Schwächungslinie begrenzten Teilbereich der Kunststoffbeschichtung nach außen verschwenkt. A preferred development of the basic principle according to the invention is that the two-armed lever member is attached to the tongue flap and with its short lever arm on the lid surface, in particular on a stiffening region of the lid surface can be supported, and that the long lever arm the tongue flap during the opening process together with the underside covering , pivoted by the arranged within the micro-gap line of weakness limited portion of the plastic coating to the outside.
Diese Ausführungsform vereint alle erreichbaren Vorteile der Erfindung in sich, da im Vergleich zu den herkömmlichen Dosendeckeln der Öffnungsvorgang einen wesentlich geringeren Kraftaufwand erfordert, das Auftreten von Aluminiumspänen bzw. Aluminium-Mikropartikelchen beim Öffnungsvorgang völlig vermieden wird und außerdem in hygienischer Hinsicht ein Optimum erzielt wird, da ein Eintau- chen von Dosendeckelteilen ein in den Doseninnenraum und damit in die sich in der Dose befindende Flüssigkeit verhindert wird. This embodiment combines all achievable advantages of the invention in itself, since in comparison to the conventional can lids the opening process requires a much lower force, the occurrence of aluminum chips or aluminum microparticles is completely avoided during the opening process and also an optimum is achieved in terms of hygiene, because a thaw Chen of can lid parts in the can interior and thus in the can located in the can liquid is prevented.
Eine für alle Ausführungsvarianten vorteilhafte Ausgestaltung der Erfindung zeich- net sich dadurch aus, dass die Zungenlasche des metallischen Dosendeckels von der ihn umgebenden Deckelfläche unter Ausbildung ineinandergreifender Vorsprünge und Ausnehmungen durch einen Schneid-, insbesondere einen Stanzvorgang getrennt ist, und dass die Zungenlasche und die an diese angrenzende Deckelfläche über die Vorsprünge und Ausnehmungen form- und kraftschlüssig unter Ausbildung des Mikrospalts verbunden sind, wobei die Dichtheit des fertigen, ungeöffneten Dosendeckels durch die innenliegende Kunststoffbeschichtung bzw. Folie gewährleistet ist. Verbessert wird das Dichtvermögen gegenüber Dosenin- nendruck noch durch eine konkave Ausbildung der Zungenlasche. Die Vorsprünge und die Ausnehmungen sind bevorzugt über Hinterschneidungen gekoppelt. An advantageous embodiment of the invention for all embodiments is characterized in that the tongue flap of the metallic can lid is separated from the surrounding lid surface to form interlocking projections and recesses by a cutting, in particular a punching process, and that the tongue flap and the this adjacent cover surface over the projections and recesses positively and non-positively connected to form the micro-gap, the tightness of the finished, unopened can lid is ensured by the inner plastic coating or film. The sealing ability against internal can pressure is improved by a concave formation of the tongue flap. The projections and the recesses are preferably coupled via undercuts.
Insbesondere bei der Ausführungsvariante, bei der die Zungenlasche beim Öffnungsvorgang nach außen bewegt wird, ist der längere Arm des zweiarmigen He- belorgans von einer Grifflasche, insbesondere einer Ringlasche gebildet und das zweiarmige Hebelorgan mit der Zungenlasche außermittig, insbesondere randsei- tig verbunden. Particularly in the case of the embodiment variant in which the tongue flap is moved outwardly during the opening process, the longer arm of the two-armed lever element is formed by a grip tab, in particular a ring tab, and the two-armed lever member is connected eccentrically with the tongue tab, in particular at the edge side.
Die Erfindung umfasst neben den im Einzelnen beschriebenen Dosendeckeln auch alle Dosen, die mit einem erfindungsgemäßen Dosendeckel versehen sind, welcher bevorzugt mit der jeweiligen Dose über einen jeweiligen Bördelrand verbunden ist, wobei insbesondere die deckelunterseitig vorgesehene Kunststofffolie im Verbindungsbereich zwischen Dosendeckel und Dose Dichtfunktion übernimmt und die gezielt positionierte Kerbung das Öffnen mit geringer Kraft ermöglicht. Ein bevorzugtes Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung erläutert; in der Zeichnung zeigt: In addition to the can lids described in detail, the invention also encompasses all cans which are provided with a can lid according to the invention, which is preferably connected to the respective can via a respective flanged edge, wherein in particular the plastic film provided on the cover side undertakes a sealing function in the connection area between the can lid and the can and the selectively positioned notch allows opening with little force. A preferred embodiment of the invention will be explained below with reference to the drawing; in the drawing shows:
Fig. 1 eine schematische Draufsicht eines Dosendeckels im ge- schlossenen Zustand, 1 is a schematic plan view of a can lid in the closed state,
Fig. 2 eine Schnittdarstellung längs eines Durchmessers des Dosendeckels nach Fig. 1 , Fig. 3 eine vergrößerte Teildarstellung der Schnittansicht nach Fig. 2 is a sectional view taken along a diameter of the can lid of FIG. 1, Fig. 3 is an enlarged partial view of the sectional view according to
Fig. 2 und  Fig. 2 and
Fig. 4 eine perspektivische Schrägansicht des Dosendeckels von oben. Fig. 4 is a perspective oblique view of the can lid from above.
Fig. 1 zeigt eine Ausführungsform des erfindungsgemäßen Dosendeckels 1 in einer schematischen Draufsicht. An seinem Umfangsbereich ist dieser Dosendeckel in herkömmlicher Weise mit einem Bördelrand 2 versehen, wobei der innerhalb des Bördelrandes 2 liegende Bereich von einer Deckelfläche 3 gebildet wird, die bezüglich der Mitte versetzt einen als Zungenlasche ausgebildeten Öffnungsbereich 4 aufweist. Dieser metallische, aus Aluminiummaterial bestehende Dosendeckel ist den Öffnungsbereich 4 umgebend mit einem durch Materialverformung gebildeten Versteifungsbereich 14 versehen. Mit dem Öffnungsbereich 4 bzw. der Zungenlasche des Dosendeckels ist ein zweiarmiger Hebel 5, 6 verbunden, insbesondere vernietet oder verschweißt, so dass sich eine feste Verbindungsstelle 7 ergibt. Diese Verbindungsstelle 7 liegt im Randbereich des Öffnungsbereichs 4, d.h. gegenüber der mit der Deckelfläche (3) verbundenen Zungenbasis, und der zweiarmige Hebel besteht aus einem kürze- ren und einem längeren Bereich, wobei der längere Hebel bevorzugt von einer gut ergreifbaren Ringlasche 5 und der kürzere Bereich von einem Abstützschenkel 6 gebildet wird, der beim Hochschwenken des längeren Hebels sich auf einem Teil des Versteifungsbereichs 14 des Dosendeckels abstützt. Der zweiarmige Hebel 5, 6 liegt im Ausgangszustand im Wesentlichen parallel zur Deckelfläche 3. Fig. 1 shows an embodiment of the can lid 1 according to the invention in a schematic plan view. At its peripheral portion of this can lid is provided in a conventional manner with a bead 2, wherein the area lying within the bead 2 is formed by a lid surface 3, which has an opening portion 4 formed as a tongue flap relative to the center. This metallic can lid made of aluminum material is provided surrounding the opening area 4 with a stiffening area 14 formed by material deformation. A two-armed lever 5, 6 is connected, in particular riveted or welded, with the opening region 4 or the tongue flap of the can lid, so that a fixed connection point 7 results. This connection point 7 lies in the edge region of the opening region 4, ie opposite the tongue base connected to the cover surface (3), and the two-armed lever consists of a shorter and a longer region, the longer lever preferably of a good engageable ring tab 5 and the shorter portion is formed by a support leg 6, which is supported on the pivoting of the longer lever on a portion of the stiffening portion 14 of the can lid. The two-armed lever 5, 6 is in the initial state substantially parallel to the lid surface. 3
Die den Öffnungsbereich 4 bildende Zungenlasche ist form- und kraftschlüssig über Vorsprünge 12 und Ausnehmungen 13 und bevorzugt über geeignete Hinter- schneidungen dieser Teile mit der Deckelfläche 3 verbunden, und zwar mit Ausnahme des Bereichs der Zungenbasis 7, wo Öffnungsbereich 4 und Deckelfläche 3 metallisch verbunden sind, so dass praktisch über eine Art Knickgelenk 9 beim Öffnen der Dose ein Hochschwenken der Zungenlasche 3 mittels des Hebels ermöglicht wird und dann Zungenlasche und Hebel außerhalb des Doseninnen- raums unter Freigabe der Öffnung in eine Ruhestellung gelangen können. Die geforderte Dichtheit des Dosendeckels wird trotz der fehlenden durchgehenden metallischen Verbindung zwischen Deckelfläche 3 und Öffnungsbereich 4 im Bereich der Verzahnung durch ein an der Unterseite des metallischen Deckels insbesondere vollflächig angebrachtes Kunststoffmaterial, insbesondere eine geeignete Kunststofffolie, gewährleistet, die fest haftend an der Deckelunterseite an- gebracht bzw. aufgesiegelt ist. Diese Beschichtung besitzt unmittelbar benachbart und innerhalb der Öffnungslinie bzw. des Mikrospalts eine ausgeprägte Schwächung 14, insbesondere eine Ein- oder teilweise Durchkerbung, so dass beim Öffnen des Dosendeckels und dem Hochziehen der Zungenlasche 4 der schmale, 3 den Mikrospalt überdeckende Bereich der Kunststofffolie praktisch vom Metall ab- geschält und somit ein mit geringem Kraftaufwand erfolgendes Öffnen der Dose ermöglicht wird. The tongue flap which forms the opening region 4 is positively and non-positively connected via protrusions 12 and recesses 13 and preferably via suitable undercuts of these parts to the cover surface 3, with the exception of the region of the tongue base 7 where the opening region 4 and the cover surface 3 are metallically connected are, so that practically on a kind of articulated joint 9 when opening the can pivoting of the tongue tab 3 is made possible by means of the lever and then tongue tab and lever outside the Doseninnen- space under release of the opening can reach a rest position. The required tightness of the can lid, despite the lack of continuous metallic connection between the lid surface 3 and opening portion 4 in the region of the toothing by a on the underside of the metallic lid in particular over the entire surface attached plastic material, in particular a suitable plastic film, ensures that adhering to the underside of the lid brought or sealed is. This coating has immediately adjacent and within the opening line or the micro-gap a pronounced weakening 14, in particular a single or partial notch, so that when opening the can lid and the pulling up of the tongue tab 4 of the narrow, 3 the micro gap overlapping area of the plastic film practically from Peeled off metal and thus a low effort opening the can is possible.
Um diese beim Öffnen des Dosendeckels jegliche Metallspanbildung ausschließende Gestaltung zu erreichen, wird bei der Fertigung des Dosendeckels der Öff- nungsbereich bzw. die Zungenlasche durch einen Schneid- oder vorzugsweise einen Stanzvorgang die Zungenlasche von der umgebenden Deckelfläche getrennt, wobei die dabei entstehenden Späne oder Mikropartikelchen im Rahmen des Fertigungsvorgangs vollständig und problemlos beseitigt werden können. Die Zungenlasche, die über ihre Basis noch mit der Deckelfläche 3 verbunden ist, wird unmittelbar nach ihrer Ausstanzung zurück in die Deckelflächenebene gedrückt, so dass sich für die Deckelfläche praktisch wieder das ursprüngliche Erscheinungsbild ergibt, jedoch nunmehr mit einem durch den Stanzvorgang erzeugten Mikrospalt. Anstelle eines linienförmigen Mikrospalts werden beim Stanzvorgang bevorzugt ineinandergreifende Vorsprünge 12 und Ausnehmungen 13 erzeugt, wie dies der Fig. 1 zu entnehmen ist. In order to achieve this design, which excludes any formation of metal chips when the can lid is opened, the opening area or the tongue flap is produced by a cutting or, preferably, cutting edge during the manufacture of the can lid a punching operation, the tongue tab separated from the surrounding lid surface, the resulting chips or microparticles can be completely and easily eliminated in the manufacturing process. The tongue tab, which is still connected via its base with the cover surface 3, is pressed immediately after its punching back into the lid surface plane, so that the lid surface practically returns the original appearance, but now with a micro-gap produced by the punching process. Instead of a line-shaped micro-gap, preferably interengaging projections 12 and recesses 13 are produced during the punching process, as can be seen from FIG.
In diesem Fall werden unmittelbar nach dem Stanzvorgang die beiden zunächst zum Teil getrennten Komponenten wieder formschlüssig ineinandergefügt, so dass der Dosendeckel in weiteren Fertigungsschritten in gleicher Weise gehandhabt werden kann wie herkömmliche Dosendeckel, die lediglich eine Schwächungsnut aufweisen. Die Vorgänge des Trennens und des Ineinanderfügens erfolgen direkt nacheinander, d.h. auf den Stanzhub erfolgt im Rückhub das formschlüssige Zusammenführen beider Teile zu einem Gesamtteil. Die form- und kraftschlüssige Verbindung zwischen den beiden Bereichen wird durch geeignete Formgebung bzw. durch Verwendung von Hinterschneidungen erreicht, die eine ausreichende gegenseitige mechanische Verbindung gewährleistet, so dass dann auch die notwendigen Be- schichtungsvorgänge bzw. der Vorgang des unterseitigen Aufbringens der Folie wie bei einem einheitlichen Teil durchgeführt werden können. In this case, immediately after the punching process, the two initially partially separated components are interlocked again in a form-fitting manner, so that the can lid can be handled in further manufacturing steps in the same way as conventional can lids, which have only one weakening groove. The operations of separating and nesting are done in direct succession, i. on the punching stroke takes place in the return stroke, the positive merging of the two parts into a total part. The positive and non-positive connection between the two areas is achieved by suitable shaping or by using undercuts, which ensures a sufficient mutual mechanical connection, so that then the necessary coating operations or the process of applying the film on the underside as in a single part.
Anstelle der in der Zeichnung gezeigten Verzahnung können erfindungsgemäß auch andere, gegebenenfalls einfachere Spaltlinienverläufe beim Stanzvorgang vorgesehen werden, wobei aber in jedem Falle der Öffnungsbereich bzw. die Zungenlasche mit der Deckelfläche 3 über den Knicklagerbereich 9 verbunden bleibt und der Mikrospalt durch die innenseitig gelegene, mit einer Kerbung versehene Kunststofffolie abgedeckt ist. Die Kunststofffolie, bei der es sich um einen PP-Folie handeln kann, die beim Aufsiegeln mit dem am Metall vorgesehenen Siegellack reagiert, wird insbesondere als eigenständiges Blisterformteil hergestellt, in dem bereits die Kerbung vorgesehen ist. Wenn die Folie z.B. eine Dicke von etwa 2/10 mm beträgt, erfolgt in der Kerbung ein Schwächung auf 1/100 mm. Die etwas vergrößerte Teildarstellung nach Fig. 3 zeigt neben der Ausgestaltung der Verbindungsstelle 7 nach Art einer Nietbindung vor allem die vollflächige Anbringung der Kunststofffolie 10 an der Unterseite des Dosendeckels und insbesondere die bevorzugt durch eine Kerbung und/oder bereichsweise Durchkerbung erreichte Ausbildung der Schwächungslinie 1 1 in der Kunststofffolie 10, die sich je nach Ausführungsform innerhalb oder außerhalb des Mikrospalts um den Öffnungsbereich 4 erstreckt. Instead of the teeth shown in the drawing, according to the invention, other, possibly simpler splitting lines during the punching process be provided, but in any case, the opening area or the tongue flap is connected to the lid surface 3 via the kink storage area 9 and the micro-gap is covered by the inside, provided with a notch plastic film. The plastic film, which may be a PP film, which reacts with the sealant provided on the metal during sealing, is produced, in particular, as an independent blister molding in which the notch is already provided. For example, if the film has a thickness of about 2/10 mm, the score will weaken to 1/100 mm. 3 shows in addition to the configuration of the connection point 7 in the manner of a rivet bond, especially the full-surface attachment of the plastic film 10 on the underside of the can lid and in particular the preferably achieved by a notch and / or regional notch formation of the line of weakness in the plastic film 10, which extends around the opening region 4 inside or outside the micro-gap, depending on the embodiment.
Die perspektivische Darstellung nach Fig. 4 zeigt die bereits beschriebenen Gestaltungsmerkmale in besonders anschaulicher Weise und lässt auch erkennen, dass die den längeren Hebelarm bildende Ringlasche 5 aufgrund einer vorgesehenen Vertiefung in der Deckelfläche 3 bequem mit einem Finger Untergriffen und zum Öffnungsvorgang nach oben geschwenkt werden kann. Bei diesem Hochschwenken der Grifflasche 5 stützt sich der kürzere Hebel 6 an dem versteiften Bereich 14 ab, wodurch im Verlauf des Hochziehens der Ringlasche der Öff- nungsbereich 4 unter gleichzeitiger und jetzt ohne Spanbildung erfolgender Lösung der insbesondere formschlüssigen Kopplung von Deckelfläche 3 und Zungenlasche 4 und unter Trennung und Lösung der an der Unterseite des Deckels vorhandenen Kunststofffolie die Dose geöffnet wird. Die Ringlasche 5 und der mit ihr hochgezogene Öffnungsbereich 3 werden in den freien rechten Bereich des Dosendeckels über den in Fig. 4 unterhalb des freien Endes der Ringlasche gelegenen Knicklagerbereich 9 verschwenkt und verbleiben dort bei geöffneter Dose. The perspective view of Fig. 4 shows the design features already described in a particularly vivid manner and can also be seen that the longer lever arm forming ring tab 5 due to a recess provided in the lid surface 3 comfortably with a finger under the handles and can be pivoted upwards for opening , During this pivoting up of the gripping lug 5, the shorter lever 6 is supported on the stiffened region 14, whereby the opening area 4 is simultaneously undercut and now without chip formation the particular positive connection of the lid surface 3 and the tongue flap 4 and 4 during the pulling up of the ring tab under separation and dissolution of the present at the bottom of the lid plastic film, the can is opened. The ring tab 5 and raised with her opening portion 3 are pivoted in the free right area of the can lid on the lying in Fig. 4 below the free end of the ring tab kink storage area 9 and remain there with the box open.
Wie geschildert, werden auf diese Weise sämtliche Nachteile des bisher bekannten und weit verbreiteten Dosendeckels vermieden, insbesondere vor allem die gesundheitsgefährdende Bildung von winzigen Mikro-Aluminiumpartikeln bei der Dosenöffnung. Von besonderer Bedeutung ist dabei, dass all diese Vorteile ohne wesentlichem fertigungstechnischen Mehraufwand erhalten werden. As described, in this way all the disadvantages of the previously known and widely used can lid are avoided, in particular the health-endangering formation of tiny micro-aluminum particles at the can opening. Of particular importance is that all these benefits are obtained without significant manufacturing overheads.
Das für einen Dosendeckel beschriebene Verschluss- und Öffnungssystem ist in analoger Weise auch für sonstige Gefäße und Verpackungen verwendbar, die mit einem Aufreißverschluss ausgestattet sein sollen. The closure and opening system described for a can lid can be used in an analogous manner for other vessels and packaging, which should be equipped with a zipper.
Bezuqszeichenliste LIST OF REFERENCES
1 Dosendeckel 1 can lid
2 Bördelrand  2 beading
3 Deckelfläche  3 lid surface
4 Öffnungsbereich, Zungenlasche 4 opening area, tongue flap
5 Hebelarm 5 lever arm
6 Hebelarm  6 lever arm
7 Befestigungsstelle, Zungenbasis 7 attachment point, tongue base
8 Mikrospalt 8 micro gap
9 Knicklagerbereich  9 kink storage area
10 Kunststofffolie  10 plastic film
1 1 Schwächungslinie, Einkerbung 1 1 line of weakness, notch
12 Vorsprung 12 lead
13 Ausnehmung  13 recess
14 Versteifungsbereich  14 stiffening area

Claims

Patentansprüche claims
Dosendeckel, insbesondere für Getränkedosen, Can lids, in particular for beverage cans,
mit einem im metallischen Deckelmaterial einer Deckelfläche (3) vorgesehenen begrenzten Öffnungsbereich (4), with a limited opening area (4) provided in the metallic cover material of a cover surface (3),
sowie einem zum Öffnen dieses Öffnungsbereichs (4) bestimmten zweiarmigen Hebelorgan (5, 6), and a two-armed lever member (5, 6) intended for opening this opening region (4),
das mit dem Deckelmaterial fest, insbesondere über eine Vernietung (7) oder Verschweißung verbunden ist, firmly connected to the lid material, in particular via a riveting (7) or welding,
dadurch gekennzeichnet, dass characterized in that
der Öffnungsbereich als Zungenlasche (4) ausgebildet ist, the opening region is designed as a tongue flap (4),
die von der Deckelfläche (3) durch einen sich über den Laschenumfang erstreckenden Mikrospalt (8), insbesondere einen Stanzspalt, getrennt ist und die mit der Deckelfläche (3) verbundene Zungenlaschenbasis ein beim Öffnungsvorgang wirksam werdendes Knicklager (9) bildet, und which is separated from the cover surface (3) by a micro gap (8) extending over the flap circumference, in particular a punched gap, and the tongue plate base connected to the cover surface (3) forms a kink bearing (9) which becomes effective during the opening process, and
dass die Unterseite des metallischen Deckels (1 ) insbesondere vollflächig mit einem Kunststoffmaterial, insbesondere einer Kunststofffolie (10) festhaftend beschichtet ist und diese Beschichtung (10) dem Mikrospalt (8) zwischen Zungenlasche (4) und Deckelfläche (3) benachbart geschwächt ausgeführt, insbesondere eingekerbt und vorzugsweise wenigstens teilweise durchgekerbt ist. in that the underside of the metallic cover (1) is in particular adhesively bonded over its entire surface to a plastic material, in particular a plastic film (10), and this coating (10) is weakened adjacent to the microgap (8) between tongue tab (4) and lid surface (3) notched and preferably at least partially notched.
Dosendeckel nach Anspruch 1 , Can lid according to claim 1,
dadurch gekennzeichnet, dass characterized in that
das zweiarmige Hebelorgan (5, 6) an der Deckelfläche (3) befestigt ist und der kurze Hebelarm (6) die Zungenlasche (4) beim Öffnungsvorgang zusammen mit dem sie unterseitig bedeckenden, durch die Schwächungslinie (1 1 ) begrenzten Teilbereich der Kunststoffbesch ichtung (10) in das Doseninnere verschwenkt, wobei die Schwächungs- oder Kerbungslinie (1 1 ) außerhalb des Mikrospalts (8) gelegen ist. the two-armed lever member (5, 6) on the lid surface (3) is fixed and the short lever arm (6), the tongue tab (4) during the opening operation together with the underside covering, through the line of weakness (1 1) limited portion of the Kunststoffbesch Gichtung (10) pivoted into the can interior, wherein the weakening or score line (1 1) located outside of the micro-gap (8).
Dosendeckel nach Anspruch 1 , Can lid according to claim 1,
dadurch gekennzeichnet, dass characterized in that
das zweiarmige Hebelorgan (5, 6) an der Zungenlasche (4) befestigt und mit seinem kurzen Hebelarm (6) auf der Deckelfläche (3), insbesondere auf einem Versteifungsbereich (14) der Deckelfläche (3) abstützbar ist, und dass der lange Hebelarm (5) die Zungenlasche (4) beim Öffnungsvorgang zusammen mit dem sie unterseitig bedeckenden, durch die Schwächungslinie (1 1 ) begrenzten Teilbereich der Kunststoffbeschichtung (10) nach außen verschwenkt, wobei die Schwächungs- oder Kerbungslinie (1 1 ) innerhalb des Mikrospalts (8) gelegen ist. the two-armed lever member (5, 6) attached to the tongue tab (4) and with its short lever arm (6) on the cover surface (3), in particular on a stiffening region (14) of the cover surface (3) can be supported, and that the long lever arm (5) the tongue flap (4) during the opening process together with the underside covering, by the line of weakness (1 1) limited portion of the plastic coating (10) pivoted outwardly, wherein the weakening or notching line (1 1) within the micro-gap (8 ) is located.
Dosendeckel nach einem der vorhergehenden Ansprüche, ' Can lid according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
die Zungenlasche (4) des metallischen Dosendeckels (1 ) von der ihn umgebenden Deckelfläche (3) unter Ausbildung ineinandergreifender Vorsprünge (12) und Ausnehmungen (13) durch einen Schneid-, insbesondere einen Stanzvorgang getrennt ist, und the tongue tab (4) of the metallic can lid (1) is separated from the surrounding lid surface (3) to form interlocking projections (12) and recesses (13) by a cutting, in particular a punching process, and
dass die Zungenlasche (4) und die an diese angrenzende Deckelfläche (3) über die Vorsprünge (12) und Ausnehmungen (13) form- und kraftschlüssig unter Ausbildung des Mikrospalts (8) verbunden sind, wobei die Dichtheit des fertigen, ungeöffneten Dosendeckels durch die innenliegende Kunststoffbeschichtung bzw. Folie (10) mit einer Dicke vorzugsweise im Bereich von etwa 1/10 mm bis 3/10 mm gewährleistet ist. Dosendeckel nach Anspruch 4, in that the tongue flap (4) and the cover surface (3) adjoining the latter are positively and non-positively connected via the projections (12) and recesses (13) to form the micro gap (8), wherein the tightness of the finished, unopened can lid is determined by the internal plastic coating or film (10) is ensured with a thickness preferably in the range of about 1/10 mm to 3/10 mm. Can lid according to claim 4,
dadurch gekennzeichnet, dass characterized in that
die Vorsprünge (12) und die Ausnehmungen (13) über Hinterschneidungen gekoppelt sind. the projections (12) and the recesses (13) are coupled via undercuts.
Dosendeckel nach Anspruch 4 oder 5, Can lid according to claim 4 or 5,
dadurch gekennzeichnet, dass characterized in that
die Deckeloberfläche (3) im Bereich der Zungenlasche (4) konkav ausgebildet ist und durch den Behälterinnendruck die Pressung im Mikrospalt erhöht wird. the lid surface (3) is concave in the region of the tongue flap (4) and the pressure in the micro gap is increased by the internal pressure of the container.
Dosendeckel nach einem der vorhergehenden Ansprüche, Can lid according to one of the preceding claims,
dadurch gekennzeichnet, dass characterized in that
die an der Unterseite vorgesehene Kunststofffolie (10) vor ihrer Versiegelung mit der Unterseite ein separates Blisterformteil bildet, in dem die Einkerbung (1 1 ) oder teilweise Durchkerbung bereits vorgesehen ist. the plastic film (10) provided on the underside before its sealing with the underside forms a separate blister molding, in which the indentation (11) or partial notch is already provided.
Dosendeckel nach Anspruch 3, Can lid according to claim 3,
dadurch gekennzeichnet, dass characterized in that
das zweiarmige Hebelorgan (5, 6) mit der Zungenlasche (4) außermittig, insbesondere randseitig verbunden ist. the two-armed lever member (5, 6) with the tongue tab (4) eccentrically, in particular the edge is connected.
Dosendeckel nach Anspruch 8, Can lid according to claim 8,
dadurch gekennzeichnet, dass characterized in that
der längere Arm (5) des zweiarmigen Hebelorgans (5, 6) von einer Grifflasche, insbesondere einer Ringlasche gebildet ist. the longer arm (5) of the two-armed lever member (5, 6) is formed by a grip tab, in particular a ring tab.
Dose mit einem über einen Bördelrand mit einem Dosendeckel nach einem oder mehreren der vorhergehenden Ansprüche verbundenen Dosendeckel. Can with a connected via a beaded edge with a can lid according to one or more of the preceding claims can lid.
EP16794325.7A 2015-12-22 2016-11-10 Can lid Active EP3377417B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL16794325T PL3377417T3 (en) 2015-12-22 2016-11-10 Can lid
RS20200379A RS60228B1 (en) 2015-12-22 2016-11-10 Can lid
SI201630687T SI3377417T1 (en) 2015-12-22 2016-11-10 Can lid
HRP20200486TT HRP20200486T1 (en) 2015-12-22 2020-03-24 Can lid

Applications Claiming Priority (2)

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DE102015122548.4A DE102015122548A1 (en) 2015-12-22 2015-12-22 can end
PCT/EP2016/077249 WO2017108260A1 (en) 2015-12-22 2016-11-10 Can lid

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EP3377417A1 true EP3377417A1 (en) 2018-09-26
EP3377417B1 EP3377417B1 (en) 2020-01-29

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US (1) US10549882B2 (en)
EP (1) EP3377417B1 (en)
JP (1) JP7086846B2 (en)
KR (1) KR102167947B1 (en)
CN (1) CN108602585B (en)
AU (1) AU2016378603B2 (en)
BR (1) BR112018012709B1 (en)
CA (1) CA3008237C (en)
CY (1) CY1122819T1 (en)
DE (1) DE102015122548A1 (en)
DK (1) DK3377417T3 (en)
EA (1) EA033945B1 (en)
ES (1) ES2779825T3 (en)
HR (1) HRP20200486T1 (en)
HU (1) HUE048495T2 (en)
LT (1) LT3377417T (en)
MA (1) MA43249B1 (en)
MX (1) MX2018007683A (en)
PL (1) PL3377417T3 (en)
PT (1) PT3377417T (en)
RS (1) RS60228B1 (en)
SA (1) SA518391837B1 (en)
SI (1) SI3377417T1 (en)
WO (1) WO2017108260A1 (en)
ZA (1) ZA201803724B (en)

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US11952164B1 (en) 2012-08-10 2024-04-09 Powercan Holding, Llc Resealable container lid and accessories including methods of manufacture and use
USD828753S1 (en) * 2012-08-10 2018-09-18 Daniel A Zabaleta Axially oriented peripheral sidewalled beverage container lid
LT3385185T (en) 2017-04-05 2020-07-10 Gregor Anton Piech Metallic can lid
ES2935714T3 (en) * 2018-06-19 2023-03-09 Top Cap Holding Gmbh Procedure for manufacturing a metal can lid
CN112763281A (en) * 2020-12-29 2021-05-07 北京方鸿智能科技有限公司 Sampling sheet

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Publication number Publication date
ZA201803724B (en) 2019-03-27
KR20180087325A (en) 2018-08-01
BR112018012709A2 (en) 2018-12-04
HRP20200486T1 (en) 2020-06-26
AU2016378603B2 (en) 2021-08-12
CN108602585B (en) 2021-02-09
PT3377417T (en) 2020-03-30
CN108602585A (en) 2018-09-28
CY1122819T1 (en) 2021-05-05
HUE048495T2 (en) 2020-07-28
JP2019500288A (en) 2019-01-10
RS60228B1 (en) 2020-06-30
SI3377417T1 (en) 2020-07-31
ES2779825T3 (en) 2020-08-20
US10549882B2 (en) 2020-02-04
MA43249A (en) 2018-09-26
MX2018007683A (en) 2018-11-14
EA201891493A1 (en) 2018-12-28
KR102167947B1 (en) 2020-10-21
PL3377417T3 (en) 2020-09-07
BR112018012709B1 (en) 2022-09-27
LT3377417T (en) 2020-03-25
DE102015122548A1 (en) 2017-06-22
SA518391837B1 (en) 2021-09-04
EA033945B1 (en) 2019-12-12
DK3377417T3 (en) 2020-03-30
EP3377417B1 (en) 2020-01-29
CA3008237C (en) 2022-03-15
WO2017108260A1 (en) 2017-06-29
MA43249B1 (en) 2020-04-30
JP7086846B2 (en) 2022-06-20
AU2016378603A1 (en) 2018-07-05
US20180002065A1 (en) 2018-01-04
CA3008237A1 (en) 2017-06-29

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