EP0386416A1 - Easily openable package - Google Patents

Easily openable package Download PDF

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Publication number
EP0386416A1
EP0386416A1 EP90100809A EP90100809A EP0386416A1 EP 0386416 A1 EP0386416 A1 EP 0386416A1 EP 90100809 A EP90100809 A EP 90100809A EP 90100809 A EP90100809 A EP 90100809A EP 0386416 A1 EP0386416 A1 EP 0386416A1
Authority
EP
European Patent Office
Prior art keywords
area
web
packaging
line
cover part
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.)
Withdrawn
Application number
EP90100809A
Other languages
German (de)
French (fr)
Inventor
Günter Hexel
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.)
Ardagh Metal Packaging Germany GmbH
Original Assignee
Schmalback Lubeca 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 Schmalback Lubeca AG filed Critical Schmalback Lubeca AG
Publication of EP0386416A1 publication Critical patent/EP0386416A1/en
Withdrawn legal-status Critical Current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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2056—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/34—Trays or like shallow containers
    • B65D1/36—Trays or like shallow containers with moulded compartments or partitions
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2025—Multi-layered container, e.g. laminated, coated
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2066—Means on, or attached to, container flange facilitating opening, e.g. non-bonding region, cut-out
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075—Lines of weakness or apertures
    • B65D2577/2091—Lines of weakness or apertures in cover

Definitions

  • the invention relates to an easy-to-open, sealingly closable packaging with the features of the preamble of claim 1.
  • Packaging of this type is known in different embodiments and for different packaging goods.
  • the lower part is usually formed from a plastic film or a plastic composite film and has an edge flange lying in the connection plane, on which the flat or profiled cover part lies.
  • This can be made of metal coated with heat sealing material, especially Aluminum foil or consist of a plastic film or a plastic / metal composite film.
  • the cover part In many packages, the cover part must be peeled off as a whole from the edge flange of the lower part. This is complex and requires skill and strength. Frequently, the cover film tears, so that the cover part cannot be reliably separated from the lower part without difficulty. Problems also exist to the extent that the adhesive force meets the requirements for reliable sealing and at the same time must have sufficient easy peelability of the cover part.
  • Pre-weakened cover parts have therefore also been provided, in which a tear-open area is limited by the line of weakness, to which a grip tab is assigned. In these cases, the connection adhesive force can only be selected from the point of view of a secure seal, since the packaging is opened by tearing open the cover part along the weakening line. However, there is a problem here with the assignment and arrangement of the grip tab in relation to the tear area delimited by the line of weakness.
  • the invention is suitable for both single-chamber and multi-chamber packaging.
  • a separate grip tab can be assigned to each chamber and formed from the lid material.
  • the arrangement is particularly advantageous according to the teaching of Claim 2 trained.
  • This development ensures that when the weakening line delimiting the handle section is initially broken in, tearing of the cover part is avoided. If this is done in accordance with the teaching of claim 3, the handle tab can thus be exposed without the opening or opening of the filling chamber area of the packaging thereby being opened. So you can prepare the opening process and still open the packaging for the first time at any later time.
  • This measure has the further particular advantage that the floor can be designed to facilitate the opening process in a special way according to the teaching of claim 6.
  • the packaging consists of a lower part 120 with edge flange 121 and one with the edge flange e.g. by sealingly connected cover part 122, which can be flat or profiled.
  • the cover part 122 can consist, for example, of a metal foil, such as aluminum foil 130a (FIG. 5) provided with a sealable layer 130b, the aluminum foil being provided with a weakening line 137 which delimits a tear-open area.
  • the lower part has several chambers which are separated from one another by webs 134.
  • the upper side of the webs lies in the sealing plane of the edge flange, the cover part 130 being connected to the lower part in a sealing manner by sealing regions along the edge flange and along the upper sides of the webs.
  • the invention is also suitable for a lower part with only one chamber to be filled with filling material.
  • a tear area is delimited for each chamber by line of weakness 137, 138 at 139.
  • Each tear-open area has a grip section 140, 140a, 140b formed from the material of the cover part, which extends beyond an adjacent web 134 and is delimited by a separate weakening line 141, which extends into the weakening line 138 e.g. of the tear-open part 132.
  • the line of weakness is broken by finger pressure on the grip tab, whereupon the tear-open part can be separated from the relevant chamber by means of the grip tab.
  • the area of intersection between the handle tab and the top of the web is designed with a lower adhesive force with respect to the sealing connection, so that the cover film peels off when it is opened from the top of the web in the area of the handle tab.
  • the lower part has a web 135 completely surrounding the grip section 140, the upper side of which lies in the connection plane and is connected via a connection or sealing line 136 is sealingly and firmly connected to the cover part 130.
  • the grip tab 140 is delimited by a dividing line, which can have interruptions, or by a weakening line 141, which according to FIG. 4 can be caused to break in by finger pressure.
  • the weakening line 141 merges into the weakening line 138 of the adjacent tear-open area 132, delimiting a connecting section.
  • grip tab 140 and associated tear-open area 132 each on opposite sides of a web, for example web 134.
  • the one in itself 4 a closed web 134, 136 around the handle tab 140 has a bottom which hermetically seals this area from the filling chamber area of the packaging.
  • the bottom is profiled with a shoulder 143 as shown in FIG. 4 and in such a way that when pressure is applied to the handle tab 140, the line of weakness 141 tears and the handle tab 140 is automatically erected into a position that can be detected easily.
  • the weakening line 141 breaks in on one side of the web 135.
  • the adjacent part of the cover 130 remains firmly connected to the lower part via the sealing line 136. A danger that the score line 137 of the adjacent tear-open part 131 will collapse is thus completely eliminated.
  • the exemplary embodiments described with reference to the figures mentioned above can of course also be used optionally in a packaging which has only one filling chamber.
  • the adhesive force is reduced in the narrowly limited intersection area between the grip tab or connection part and the web . This can be done, for example, in the manner shown in FIGS. 6 and 7.
  • the web 117 is constricted in the area of intersection from the sealing width 117a to the web 116 with the sealing width 116a, as indicated at 115.
  • the film 111 of the cover part consisting of the layers 112, 113 can be at the same temperature and pressure as in the other areas 117a with the narrower one Area 116a connected by heat sealing.
  • the reduction in width results in a lower adhesive force, so that in this area when opening the cover film peels off from the lower part 110, which can also consist, for example, of a metal film, in particular aluminum film 112 coated with sealing material 113.
  • the sealing adhesive force can be correspondingly reduced in the region 142 by a reduced sealing temperature and / or by a reduced sealing pressure and / or a shortened sealing time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)

Abstract

An easily openable package is provided which has a lid part (122) and a bottom part (120), and in which a tear-off region is bounded in the lid part (122) by a weakening line (137), which tear-off region is connected integrally to a gripping tab (140, 140a, 140b) which is formed from the lid material itself and is bounded by a weakening line (141). <IMAGE>

Description

Die Erfindung betrifft eine leicht zu öffnende, abdichtend verschließbare Verpackung mit den Merkmalen des Oberbegriffs der Anspruchs 1.The invention relates to an easy-to-open, sealingly closable packaging with the features of the preamble of claim 1.

Verpackungen dieser Art sind in verschiedenen Ausführungsformen und für verschie­dene Verpackungsgüter bekannt. Der Unterteil ist zumeist aus einer Kunststoff-Folie oder einer Kunststoffverbundfolie geformt und weist einen in der Verbin­dungsebene liegenden Randflansch auf, auf dem sich der ebene oder profilierte Deckelteil auflegt. Dieser kann aus mit Heißsiegelmaterial beschichteter Metall-,insb. Aluminiumfolie oder aus einer Kunststoff-Folie oder aus einer Kunst­stoff/Metall-Verbundfolie bestehen. Nach Füllen wird die Verpackung über einen li­nienförmig orientierten Flächenbereich durch Kalt- oder Heißsiegeln, Schweißen oder durch Kleben abdichtend verschlossen.Packaging of this type is known in different embodiments and for different packaging goods. The lower part is usually formed from a plastic film or a plastic composite film and has an edge flange lying in the connection plane, on which the flat or profiled cover part lies. This can be made of metal coated with heat sealing material, especially Aluminum foil or consist of a plastic film or a plastic / metal composite film. After filling, the packaging is sealed over a line-shaped area by cold or heat sealing, welding or gluing.

Bei vielen Verpackungen muß der Deckelteil als ganzes von dem Randflansch des Unterteils abgeschält werden. Dies ist aufwendig und erfordert Geschick und Kraft. Häufig reißt dabei die Deckelfolie ein, so daß der Deckelteil nicht zuverlässig von dem Unterteil ohne Schwierigkeiten abgetrennt werden kann. Probleme bestehen auch insoweit, als die Haftkraft den Erfordernissen nach zuverlässiger Abdichtung und zugleich einer ausreichend leichten Abschälbarkeit des Deckelteils genügen muß. Man hat daher auch schon vorgeschwächte Deckelteile vorgesehen, in denen durch die Schwächungslinie ein Aufreißbereich begrenzt ist, dem eine Griff­lasche zugeordnet ist. In diesen Fällen kann die Verbindungshaftkraft lediglich unter dem Gesichtspunkt einer sicheren Abdichtung gewählt werden, da das Öffnen der Verpackung durch Aufreißen des Decktelteils entlang der Schwächungslinie erfolgt. Ein Problem besteht jedoch hierbei in der Zuordnung und Anordnung der Grifflasche in Bezug auf den durch die Schwächungslinie begrenzten Aufreißbereich.In many packages, the cover part must be peeled off as a whole from the edge flange of the lower part. This is complex and requires skill and strength. Frequently, the cover film tears, so that the cover part cannot be reliably separated from the lower part without difficulty. Problems also exist to the extent that the adhesive force meets the requirements for reliable sealing and at the same time must have sufficient easy peelability of the cover part. Pre-weakened cover parts have therefore also been provided, in which a tear-open area is limited by the line of weakness, to which a grip tab is assigned. In these cases, the connection adhesive force can only be selected from the point of view of a secure seal, since the packaging is opened by tearing open the cover part along the weakening line. However, there is a problem here with the assignment and arrangement of the grip tab in relation to the tear area delimited by the line of weakness.

Es ist Aufgabe der Erfindung hier Abhilfe zu schaffen und die Herstellung einer solchen Verpackung zu vereinfachen und zu verbilligen, ohne die Handhabung der Verpackung durch den Endverbraucher zu erschweren.It is an object of the invention to remedy this situation and to simplify and reduce the cost of producing such packaging without making it more difficult for the end user to handle the packaging.

Diese Aufgabe wird durch die Lehre des Anspruchs 1 gelöst.This object is achieved by the teaching of claim 1.

Aufgrund dieser Ausbildung wird ein über den Rand der Verpackung vorstehen­der Griffabschnitt nicht benötigt. Daher besteht auch keine Gefahr, daß ein solcher beschädigt wird oder abreißt oder die Handhabung der Verpackungen behindert. Auch ist es nicht notwendig, einen gesonderten Griffabschnitt herzustellen und an dem Deckelteil anzubringen. Dadurch vereinfacht sich die Herstellung in erheblichem Umfange.Because of this design, a grip section protruding over the edge of the packaging is not required. Therefore, there is no risk of damage or tearing or hindering the handling of the packaging. It is also not necessary to produce a separate handle section and to attach it to the cover part. This considerably simplifies production.

Die Erfindung ist sowohl geeignet für Einkammer- als auch für Mehrkammer-­Verpackungen. Im letzteren Fall kann jeder Kammer eine gesonderte Grifflasche zugeordnet und aus dem Deckelmaterial ausgebildet sein.The invention is suitable for both single-chamber and multi-chamber packaging. In the latter case, a separate grip tab can be assigned to each chamber and formed from the lid material.

Unabhängig davon, ob es sich um eine Mehrkammer- oder Einfachkammer-Ver­packung handelt ist die Anordnung besonders vorteilhaft gemäß der Lehre des Anspruchs 2 weitergebildet. Durch diese Weiterbildung wird gewährleistet, daß beim anfänglichen Einbrechen der den Griffabschnitt umgrenzenden Schwächungslinie ein Einreißen des Deckelteils vermieden wird. Wenn dabei ge­mäß der Lehre des Anspruchs 3 vorgegangen wird, kann somit die Grifflasche freigelegt werden, ohne daß dadurch schon der Füllkammerbereich der Verpackung angebrochen oder geöffnet wird. Man kann also den Öffnungsvor­gang vorbereiten und die Verpackung dennoch zu jedem beliebigen späteren Zeitpunkt erstmals öffnen. Dazu ist es zweckmäßig die Anordnung gemäß der Lehre des Anspruchs 5 zu ergänzen, um den unterhalb des Griffabschnittes liegenden Bereich vollständig von dem Füllbereich der Verpackung zu trennen. Diese Maßnahme hat den weiteren besonderen Vorteil, daß man den Boden zur Erleichterung des Öffnungsvorganges in besonderer Weise gemäß der Lehre des Anspruchs 6 gestalten kann.Regardless of whether it is a multi-chamber or single-chamber packaging, the arrangement is particularly advantageous according to the teaching of Claim 2 trained. This development ensures that when the weakening line delimiting the handle section is initially broken in, tearing of the cover part is avoided. If this is done in accordance with the teaching of claim 3, the handle tab can thus be exposed without the opening or opening of the filling chamber area of the packaging thereby being opened. So you can prepare the opening process and still open the packaging for the first time at any later time. For this purpose, it is expedient to supplement the arrangement according to the teaching of claim 5 in order to completely separate the area below the handle section from the filling area of the packaging. This measure has the further particular advantage that the floor can be designed to facilitate the opening process in a special way according to the teaching of claim 6.

Wichtig ist dabei, daß die Schwächungslinie, die den Grifflaschenbereich um­grenzt, in die Schwächungslinien übergeht, die den Aufreißbereich der Füll­kammer der Verpackung begrenzt. Die Übergangsstelle über den Steg sollte dabei in besonderer Weise gemäß der Lehre des Anspruchs 4 ausgebildet werden.It is important that the weakening line that delimits the grip tab area merges with the weakening lines that delimit the tear-open area of the filling chamber of the packaging. The transition point over the web should be designed in a special way according to the teaching of claim 4.

Die Erfindung wird nachfolgend anhand schematischer Zeichnungen an mehreren Ausführungsbeispielen näher erläutert.The invention is explained in more detail below with the aid of schematic drawings using several exemplary embodiments.

Es zeigen:

  • Figur 1 einen Behälter der Gattung, auf die sich die Erfindung bezieht, in Seitenansicht.
  • Figure 2 in Draufsicht einen Deckelteil für den Behälter nach Figur 1.
  • Figure 3 im größeren Maßstabe und im Ausschnitt die Draufsicht auf den Deckel­teil nach Fig. 2.
  • Figure 4 im größeren Maßsabe einen Querschnitt entlang der Schnittlinie A-A der Figur 3.
  • Figur 5 eine Einzelheit im Querschnitt, die in Figur 4 mit "B" angedeutet ist.
  • Figur 6 im größeren Maßstabe einen Ausschnitt aus der Figur 4 und
  • Figur 7 den Ausschnitt nach Figur 6 in Draufsicht.
Show it:
  • Figure 1 shows a container of the type to which the invention relates, in side view.
  • Figure 2 in plan view a lid part for the container of Figure 1.
  • Figure 3 on a larger scale and in a detail the top view of the cover part according to FIG. 2.
  • Figure 4 on a larger scale a cross section along the section line AA of Figure 3.
  • Figure 5 shows a detail in cross section, which is indicated in Figure 4 with "B".
  • Figure 6 on a larger scale a section of Figure 4 and
  • Figure 7 shows the detail of Figure 6 in plan view.

Die Verpackung besteht aus einem Unterteil 120 mit Randflansch 121 und einem mit dem Randflansch z.B. durch Siegeln abdichtend verbundenen Deckelteil 122, der eben oder profiliert sein kann. Der Deckelteil 122 kann beispielsweise aus einer mit eine seigelbaren Schicht 130b versehenen Metall-, wie Alufolie 130a (Fig.5) bestehen, wobei die Aluminiumfolie mit einer Schwächungslinie 137 versehen ist, die einen Aufreißbereich umgrenzt.The packaging consists of a lower part 120 with edge flange 121 and one with the edge flange e.g. by sealingly connected cover part 122, which can be flat or profiled. The cover part 122 can consist, for example, of a metal foil, such as aluminum foil 130a (FIG. 5) provided with a sealable layer 130b, the aluminum foil being provided with a weakening line 137 which delimits a tear-open area.

Bei der Verpackung nach Figur 2 weist der Unterteil mehrere kammern auf, die durch Stege 134 voneinander getrennt sind. Die Oberseite der Stege liegt in der Siegelebene des Randflansches, wobei der Deckelteil 130 durch Siegelbereiche entlang des Randflansches und entlang der Oberseiten der Stege mit dem Unter­teil abdichtend verbunden ist. Die Erfindung ist aber ebenso geeignet für ein Unterteil mit nur einer mit Füllgut zu füllenden Kammer geeignet.In the packaging according to FIG. 2, the lower part has several chambers which are separated from one another by webs 134. The upper side of the webs lies in the sealing plane of the edge flange, the cover part 130 being connected to the lower part in a sealing manner by sealing regions along the edge flange and along the upper sides of the webs. However, the invention is also suitable for a lower part with only one chamber to be filled with filling material.

Im Deckelteil ist für jede Kammer durch Schwächungslinie 137,138 bei 139 ein Aufreißbereich begrenzt. Jeder Aufreißbereich weist einen aus dem Material des Deckelteils gebildeten Griffabschnitt 140,140a,140b auf, der über einen benach­barten Steg 134 hinüberragt und durch eine gesonderte Schwächungslinie 141 umgrenzt ist, die in die Schwächungslinie 138 z.B. des Aufreißteils 132 über­geht.In the cover part, a tear area is delimited for each chamber by line of weakness 137, 138 at 139. Each tear-open area has a grip section 140, 140a, 140b formed from the material of the cover part, which extends beyond an adjacent web 134 and is delimited by a separate weakening line 141, which extends into the weakening line 138 e.g. of the tear-open part 132.

Zum Öffnen wird durch Fingerdruck auf die Grifflasche die Schwächungslinie zum Einbrechen gebracht, worauf mittels der Grifflasche der Aufreißteil von der betreffenden Kammer abgetrennt werden kann.To open it, the line of weakness is broken by finger pressure on the grip tab, whereupon the tear-open part can be separated from the relevant chamber by means of the grip tab.

Dabei ist der Kreuzungsbereich zwischen Grifflasche und Stegoberseite bezüg­lich der abdichtenden Verbindung mit geringerer Haftkraft ausgebildet, so daß sich die Deckelfolie beim Öffnen von der Stegoberseite im Bereich der Griff­lasche abschält.The area of intersection between the handle tab and the top of the web is designed with a lower adhesive force with respect to the sealing connection, so that the cover film peels off when it is opened from the top of the web in the area of the handle tab.

Um zu verhindern, daß beim Eindrücken der Grifflasche 140 das benachbarte Folienmaterial des Deckelteils unbeabsichtigt einbricht, oder der Finger in den Inhalt taucht, weist der Unterteil einen den Griffabschnitt 140 vollständig um­gebenden Steg 135 auf, dessen Oberseite in der Verbindungsebene liegt und über eine Verbindungs- oder Siegellinie 136 mit dem Deckelteil 130 abdichtend und fest verbunden ist. Die Grifflasche 140 ist, wie oben schon erwähnt, durch eine Trennlinie, die Unterbrechungen aufweisen kann, oder durch eine Schwächungs­linie 141 umgrenzt, die gemäß Figur 4 durch Fingerdruck zum Einbrechen ge­bracht werden kann. Die Schwächungslinie 141 geht unter Begrenzung eines Verbindungsabschnittes in die Schwächungslinie 138 des angrenzenden Aufreiß­bereiches 132 auf. Es liegen Grifflasche 140 und zugehöriger Aufreißbereich 132 jeweils auf entgegensetzten Seiten eines Steges, z.B. des Steges 134. Der in sich geschlossene Steg 134, 136 um die Grifflasche 140 weist gemäß Fig. 4 einen Boden auf, der diesen Bereich hermetisch gegenüber dem Füllkammerbe­reich der Verpackung abschließt. Der Boden ist gemäß Fig. 4 mit einer Schulter 143 profiliert ausgebildet und zwar so, daß bei Druck auf die Grifflasche 140 die Schwächungslinie 141 einreißt und sich dabei automatisch die Grifflasche 140 in eine liecht zu erfassende Stellung aufrichtet.
Wie die Figuren zeigen, bricht die Schwächungslinie 141 dabei auf der einen Seite des Steges 135 ein. Der angrenzende Teil des Deckels 130 bleibt über die Siegellinie 136 fest mit dem Unterteil verbunden. Eine Gefahr, daß dabei die Kerblinie 137 des benachbarten Aufreißteils 131 einbricht, ist damit vollständig gebannt.In order to prevent the adjacent film material of the cover part from accidentally breaking in or the finger from diving into the contents when the grip tab 140 is pressed in, the lower part has a web 135 completely surrounding the grip section 140, the upper side of which lies in the connection plane and is connected via a connection or sealing line 136 is sealingly and firmly connected to the cover part 130. As already mentioned above, the grip tab 140 is delimited by a dividing line, which can have interruptions, or by a weakening line 141, which according to FIG. 4 can be caused to break in by finger pressure. The weakening line 141 merges into the weakening line 138 of the adjacent tear-open area 132, delimiting a connecting section. There are grip tab 140 and associated tear-open area 132 each on opposite sides of a web, for example web 134. The one in itself 4, a closed web 134, 136 around the handle tab 140 has a bottom which hermetically seals this area from the filling chamber area of the packaging. The bottom is profiled with a shoulder 143 as shown in FIG. 4 and in such a way that when pressure is applied to the handle tab 140, the line of weakness 141 tears and the handle tab 140 is automatically erected into a position that can be detected easily.
As the figures show, the weakening line 141 breaks in on one side of the web 135. The adjacent part of the cover 130 remains firmly connected to the lower part via the sealing line 136. A danger that the score line 137 of the adjacent tear-open part 131 will collapse is thus completely eliminated.

Die anhand der zuvor genannten Figuren beschriebenen Ausführungsbeispiele können selbstverständlich wahlweise auch bei einer Verpackung verwendet werden, die nur eine einzige Füllkammer aufweist. Auch in diesem Falle ist es vorteilhaft den Grifflaschenbereich über einem durch Steg und Boden begrenzten Teil des Unterteils anzuordnen, wie dies anhand der Figuren 3 bis 5 gezeigt ist.
Um sicherzustellen, daß beim Öffnen mit Hilfe der Grifflasche der Verbindungs­bereich zwischen Aufreißteil und Grifflasche nicht abreißt, sondern sich von dem zugehörigen Steg 142 (Fig. 4) abschält, ist in dem eng begrenzten Kreuzungsbereich zwischen Grifflasche oder Verbindungsteil und dem Steg die Haftkraft vermindert ausgebildet. Dies kann z.B. auf die in den Figuren 6 und 7 gezeigte Weise erfolgen. Hier ist vorgesehen, daß im Kreuzungsbereich der Steg 117 von der Siegelbreite 117a zu dem Steg 116 mit der Siegelbreite 116a eingeschnürt ist, wie dies bei 115 angedeutet ist. Die aus den Schichten 112, 113 bestehende Folie 111 des Deckelteils kann hierbei mit gleicher Temperatur und gleichem Druck wie in den übrigen Bereichen 117a mit dem schmaleren Bereich 116a durch Heißsiegeln verbunden sein. Durch die Breitenverminderung ergibt sich eine geringere Haftkraft, so daß sich in diesem Bereich beim Öffnen die Deckelfolie vom Unterteil 110 abschält, der ebenfalls z.B. aus einer mit Siegelmaterial 113 beschichteten Metall-, insb. Aluminiumfolie 112 bestehen kann.The exemplary embodiments described with reference to the figures mentioned above can of course also be used optionally in a packaging which has only one filling chamber. In this case too, it is advantageous to arrange the grip tab area over a part of the lower part which is delimited by the web and the bottom, as is shown with reference to FIGS. 3 to 5.
In order to ensure that the connection area between the tear-open part and the grip tab does not tear off when opening with the aid of the grip tab, but instead peels off from the associated web 142 (FIG. 4), the adhesive force is reduced in the narrowly limited intersection area between the grip tab or connection part and the web . This can be done, for example, in the manner shown in FIGS. 6 and 7. It is provided here that the web 117 is constricted in the area of intersection from the sealing width 117a to the web 116 with the sealing width 116a, as indicated at 115. The film 111 of the cover part consisting of the layers 112, 113 can be at the same temperature and pressure as in the other areas 117a with the narrower one Area 116a connected by heat sealing. The reduction in width results in a lower adhesive force, so that in this area when opening the cover film peels off from the lower part 110, which can also consist, for example, of a metal film, in particular aluminum film 112 coated with sealing material 113.

Statt dessen kann in dem Bereich 142 die Siegelhaftkraft durch herabgesetzte Siegeltemperatur und/oder durch herabgesetzten Siegeldruck und/oder verkürz­ter Siegeldauer entsprechend vermindert werden.Instead, the sealing adhesive force can be correspondingly reduced in the region 142 by a reduced sealing temperature and / or by a reduced sealing pressure and / or a shortened sealing time.

Claims (6)

1. Leicht zu öffnende Verpackung, bestehend aus einem Unterteil mit Randflansch zur Auflage und abdichtenden Verbindung mit einem ebenen oder profilierten Deckelteil aus einer Kunststoff-, Metall- oder Metall/Kunststoff-Verbundfolie, in der innerhalb einer Verbindungs-oder Siegellinie durch Schwächungslinie ein Aufreißbereich begrenzt ist, der mit einer Grifflasche versehen ist, dadurch ge­kennzeichnet, daß auch die Grifflasche (140) innerhalb der Siegellinie (133) angeordnet, durch das Material des Deckelteils (130) selbst gebildet und durch eine Schwächungslinie (141) begrenzt ist, die in die den Aufreißbereich (132) begrenzenden Schwächungslinien (138) übergeht.1. Easy-to-open packaging, consisting of a lower part with edge flange for support and sealing connection with a flat or profiled cover part made of a plastic, metal or metal / plastic composite film, in which a tear-open area within a connecting or sealing line through a weakening line is limited, which is provided with a grip tab, characterized in that the grip tab (140) is also arranged within the sealing line (133), is formed by the material of the cover part (130) itself and is delimited by a weakening line (141), which in the weakening lines (138) delimiting the tear area (132). 2. Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß der Unterteil einen in der Verbindungsebene zwischen Unterteil und Deckelteil (130) liegenden Steg (134,135) aufweist, der den Grifflaschenbereich (140) im Deckelteil umgibt und mit dem Deckelteil (130) verbunden ist, und daß die den Grifflaschenbereich umgrenzende Schwächungslinie (141) innerhalb der den Steg (135) zugeordneten Siegellinie (136) angeordnet ist.2. Packaging according to claim 1, characterized in that the lower part has a web (134, 135) lying in the connecting plane between the lower part and the cover part (130), which surrounds the handle flap area (140) in the cover part and is connected to the cover part (130), and that the weakening line (141) bordering the grip tab area is arranged within the sealing line (136) assigned to the web (135). 3. Verpackung nach Anspruch 2, dadurch gekennzeichnet, daß der Steg (134,135) in sich geschlossen ist und einen Abschnitt (134) aufweist, der den Verbindungsbereich zwischen der Grifflasche (140) und dem zugehörigen Aufreißbereich (132) kreuzt.3. Packaging according to claim 2, characterized in that the web (134, 135) is self-contained and has a section (134) which crosses the connection area between the grip tab (140) and the associated tear-open area (132). 4. Verpackung nach Anspruch 3, dadurch gekennzeichnet, daß die Siegellinie (116a) im Kreuzungsbereich zwischen Steg und Verbindungsbereich mit gegenüber den anderen Bereichen (117a) der Siegellinie verminderter Haftkraft ausgebildet ist, derart, daß der Verbindungsbereich (142) mit Hilfe der Grifflasche (140) von dem Stegabschnitt (116) beim Öffnen der Verpackung abschälbar ist.4. Packaging according to claim 3, characterized in that the sealing line (116a) is formed in the crossover area between the web and the connecting area with less than the other areas (117a) of the sealing line, such that the connecting area (142) with the aid of the grip tab ( 140) can be peeled off from the web section (116) when the packaging is opened. 5. Verpackung nach einem der Ansprüche 2 bis 4, dadurch gekennzeich­net, daß der von den Stegen (134,135) umgrenzte Bereich durch einem im vor­bestimmten Abstand unterhalb der Verbindungsebene liegenden Bodenbereich von dem Inneren des Unterteils getrennt ausgebildet ist.5. Packaging according to one of claims 2 to 4, characterized in that the region delimited by the webs (134, 135) is formed separately from the interior of the lower part by a bottom region lying at a predetermined distance below the connecting plane. 6. Verpackung nach Anspruch 5, dadurch gekennzeichnet, daß der Bodenbereich eine schräge Stufe (143) aufweist, die so angeordnet ist, daß bei Fingerdruck auf den Grifflaschenbereich (140) die diesen begrenzende Schwächungslinie (141) einbricht und sich deren Griffende an der schrägen Stufe (143) selbsttätig in eine griffbereite Stellung aufrichtet.6. Packaging according to claim 5, characterized in that the bottom region has an inclined step (143) which is arranged such that when finger pressure is applied to the grip flap region (140) the weakening line (141) delimiting it and the end of the grip on the inclined part Level (143) automatically raises to a ready position.
EP90100809A 1989-01-19 1990-01-16 Easily openable package Withdrawn EP0386416A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3901507 1989-01-19
DE3901507 1989-01-19
DE3902912 1989-02-01
DE3902912A DE3902912A1 (en) 1989-01-19 1989-02-01 EASY TO OPEN PACKING

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EP0386416A1 true EP0386416A1 (en) 1990-09-12

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US (1) US5022551A (en)
EP (1) EP0386416A1 (en)
JP (1) JPH02233357A (en)
DE (1) DE3902912A1 (en)

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ES2047428A2 (en) * 1991-09-27 1994-02-16 Everycel Sa System for forming and placing closing operculum for containers
AT512261A1 (en) * 2011-11-30 2013-06-15 Wiesenegger Gmbh CLOSURE FOIL WITH INTEGRATED OPENING
EP2759489A1 (en) * 2013-01-23 2014-07-30 Peter Will Package with a lower part having recesses
JP2019069805A (en) * 2017-10-11 2019-05-09 大日本印刷株式会社 Storage container

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DE3901503A1 (en) * 1989-01-19 1990-08-02 Schmalbach Lubeca EASY TO OPEN PACKING
CH683175A5 (en) * 1991-02-04 1994-01-31 Alusuisse Lonza Services Ag Packaging.
DE19744955A1 (en) * 1997-10-10 1999-04-15 Bernhard Bartsch Gmbh Thermoformed resealable packaging for foodstuffs
US8080770B2 (en) * 2004-03-09 2011-12-20 Ball Corporation Microwavable metallic container
US7378625B2 (en) * 2004-03-09 2008-05-27 Ball Corporation Microwavable metallic container
US7112771B2 (en) * 2004-03-09 2006-09-26 Ball Corporation Microwavable metallic container
US7832580B2 (en) * 2004-09-13 2010-11-16 Brian Francis Jackman Tamper evident container seal with integral pull opener
USD638704S1 (en) 2010-12-10 2011-05-31 Pactiv Corporation Container lid
USD637489S1 (en) 2010-12-10 2011-05-10 Pactiv Corporation Pull grip feature of a container lid
US9114925B2 (en) 2011-09-13 2015-08-25 Lincoln Global, Inc. Container for elongated articles
US10343809B2 (en) * 2017-02-08 2019-07-09 Inline Plastics Corp. Compartmentalized containers

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US3580485A (en) * 1968-05-28 1971-05-25 Monsanto Chemicals Containers
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DE2421194A1 (en) * 1974-05-02 1975-11-20 Medigraft Medizinische Erzeugn Packing with tear-off cover - has lug sealed to flap attached by weakened line to container

Cited By (5)

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Publication number Priority date Publication date Assignee Title
ES2047428A2 (en) * 1991-09-27 1994-02-16 Everycel Sa System for forming and placing closing operculum for containers
AT512261A1 (en) * 2011-11-30 2013-06-15 Wiesenegger Gmbh CLOSURE FOIL WITH INTEGRATED OPENING
AT13463U1 (en) * 2011-11-30 2014-01-15 Wiesenegger Gmbh Closing foil with integrated opening
EP2759489A1 (en) * 2013-01-23 2014-07-30 Peter Will Package with a lower part having recesses
JP2019069805A (en) * 2017-10-11 2019-05-09 大日本印刷株式会社 Storage container

Also Published As

Publication number Publication date
JPH02233357A (en) 1990-09-14
DE3902912C2 (en) 1992-04-16
US5022551A (en) 1991-06-11
DE3902912A1 (en) 1990-08-02

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