DE2928626A1 - Plastics yoghurt cup with protruding edge - has radius several times of that of tear-off corner - Google Patents

Plastics yoghurt cup with protruding edge - has radius several times of that of tear-off corner

Info

Publication number
DE2928626A1
DE2928626A1 DE19792928626 DE2928626A DE2928626A1 DE 2928626 A1 DE2928626 A1 DE 2928626A1 DE 19792928626 DE19792928626 DE 19792928626 DE 2928626 A DE2928626 A DE 2928626A DE 2928626 A1 DE2928626 A1 DE 2928626A1
Authority
DE
Germany
Prior art keywords
corner
cup
tear
radius
edge
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Withdrawn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
DE19792928626
Other languages
German (de)
Inventor
Kurt Ing Grad Walter
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.)
Hassia Verpackungsmaschinen GmbH
Original Assignee
Hassia Verpackungsmaschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hassia Verpackungsmaschinen GmbH filed Critical Hassia Verpackungsmaschinen GmbH
Priority to DE19792928626 priority Critical patent/DE2928626A1/en
Publication of DE2928626A1 publication Critical patent/DE2928626A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D77/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10Container closures formed after filling
    • B65D77/20Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024Container 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
    • B65D77/2028Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044Means 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
    • B65D77/2048Means 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
    • B65D77/2052Means 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 container being weakened
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2577/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10Container closures formed after filling
    • B65D2577/20Container closures formed after filling by applying separate lids or covers
    • B65D2577/2066Means on, or attached to, container flange facilitating opening, e.g. non-bonding region, cut-out
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2577/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10Container closures formed after filling
    • B65D2577/20Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075Lines of weakness or apertures
    • B65D2577/2083Lines of weakness or apertures in container flange

Abstract

The cup is made of thermoplastic sheet and intended particularly for yoghurt etc. It has a protruding peripheral edge to which a covering sheet is to be sealed, this being provided with a tear-off tag at one corner. The radius (R1) of the cup (1) is a multiple of that (R2) of the corner (3). The sealing seam (4) for the cover follows the outline of the corner. The protruding edge (2) has a weakened portion (6), tangential to the curve of the cup. Thus an easy operable cup is provided.

Description

Tiefziehbecher Thermoformed cup

Die vorliegende Erfindung bezieht sich auf ein aus thermisch verformbarer Kunststoff-Folie bestehendes, becherförmiges Behältnis, insbesondere zur Aufnahme von Joghurt od. dgl., mit einem an der offenen Becherseite umlaufenden und die Becheröffnung überkragenden Rand zur Aufsiegelung einer Abdeckfolie und mit mindestens einer an einer (im folgenden Aufreißecke genannten) Ecke des Randes vorgesehenen Aufreißlasche zum Abziehen der Abdeckfolie.The present invention relates to a thermally deformable Plastic film existing, cup-shaped container, in particular for receiving of yoghurt or the like, with a circumferential on the open side of the cup and the cup opening protruding edge for sealing a cover film and with at least one on a tear tab (referred to below as a tear corner) corner of the edge to peel off the cover film.

Derartige Behältnisse sind bekannt und die erwähnten Aufreißlaschen dienen dabei der Möglichkeit, die Behältnisse ohne Zuhilfenahme etwaiger Schneidwerkzeuge öffnen zu können. Die diesbezügliche Ausbildung der Behältnisse ist so, daß an einer Ecke (Abreißecke) ein Teil der Abdeckfolie nicht angesiegelt ist, wodurch sich eine Lasche ausbildet, mit der dann die rundum angesiegelte Abdeckfolie abgezogen werden kann.Such containers are known and the tear tabs mentioned serve the possibility of the containers without help to be able to open any cutting tools. The related training of the containers is such that at one corner (tear-off corner) part of the cover film is not sealed is, whereby a flap is formed, with which then the all-round sealed cover film can be deducted.

Die so gestaltete Abreißhilfe hat den Nachteil, daß die Angriffslnie an der Siegelnaht zum Trennen der Becher- und Abdeckfolie relativ lang und dadurch die zum Aufreißen erforderliche Kraft relativ groß ist.The tear-off aid designed in this way has the disadvantage that the attack line relatively long and therefore relatively long at the sealing seam for separating the cup and cover film the force required to tear open is relatively large.

Andere Ausführungen, bei denen der Siegelnahtsteg fast rechtwinklig oder spitz auf die Ecke zuläuft, benötigen zum Öffnen zwar eine geringere Kraft, lassen sich jedoch schlecht handhaben, dadie Lasche und somit die Fläche zum Anfassen sehr klein ist. In beiden Fällen besteht die Gefahr, daß die Lasche abgerissen wird, ehe die Abdeckfolie abgezogen ist.Other designs in which the sealing seam web is almost right-angled or tapers to a corner, although they require less force to open, However, they are difficult to handle because the tab and thus the surface can be touched is very small. In both cases there is a risk that the tab will be torn off, before the cover film is peeled off.

Ausgehend von Behältnissen der eingangs genannten Art liegt der Erfindung die Aufgabe zugrunde, ein derartiges Behältnis so zu modifizieren, daß bei bequemer Handhabung nur eine geringe Kraft zum Abziehen der Abdeckfolie erforderlich ist. Diese Aufgabe wird durch die im Patentanspruch angegebenen Mittel gelöst.The invention is based on containers of the type mentioned at the beginning the task of modifying such a container so that with more convenient Handling only a small force is required to peel off the cover film. This object is achieved by the means specified in the claim.

Die Erfindung wird im folgenden an Hand der Zeichnungen näher erläutert.The invention is explained in more detail below with reference to the drawings.

Fig. 1 zeigt in zwei Ansichten ein Behältnis der eingangs genannten Art (Stand der Technik), Fig. 2 zeigt ein erfindungsgemäßes Behältnis.Fig. 1 shows a container of the type mentioned in two views Art (prior art), Fig. 2 shows a container according to the invention.

In Fig. 1 ist ein nach dem Tiefziehverfahren hergestellter Becher 1 dargestellt, der an seiner offenen Seite einen umlaufenden, im wesentlichen rechteckigen Rand 2 aufweist. Dieser Rand 2 entspricht hinsichtlich seiner Stärke dem Ausgangsmaterial, in welches dem speziellen Herstellungsverfahren entsprechend die becherförmigen Behältnisse gezogen werden. Längs des Randes 2 verläuft eine Siegelnaht 4, die in Verbindung mit einer Abdeckfolie 5 einen dichten Verschluß des Bechers 1 ermöglicht und gewährleistet.In Fig. 1 is a cup produced by the deep-drawing process 1 shown, which has a circumferential, substantially rectangular on its open side Has edge 2. This edge 2 corresponds in terms of its thickness to the starting material, in which the cup-shaped Containers are pulled. A sealing seam 4 runs along the edge 2, which is shown in FIG Connection with a cover sheet 5 enables the cup 1 to be sealed tightly and guaranteed.

Die Außenkontur des Randes 2 ergibt sich beim Ausstanzen der Einzel-Becher aus der Kunststoff-Folie. Gemäß der Darstellung nach Fig. 1 ist dabei die Stanz-Matrize derart gestaltet, daß eine der vier Ecken weniger stark abgerundet ist als die anderen Ecken. Diese als Aufreißecke bezeichnete Ecke 3 des Randes 2 dient als Auflage für eine Lasche der Abdeckfolie 5. Zum Abziehen dieser Abdeckfolie 5 wird dann die Lasche an der Aufreißecke 3 angehoben und in Richtung Bechermitte gezogen. Dabei ist eine relativ große Kraft erforderlich, die darüberhinaus die Gefahr des Abreißens der Lasche an der Angriffsfläche der Siegelnaht 4 in sich birgt.The outer contour of the edge 2 results when the individual cups are punched out from the plastic film. According to the illustration according to FIG. 1, the punching die is here designed in such a way that one of the four corners is less rounded than the others Corners. This corner 3 of the edge 2, referred to as a tear corner, serves as a support for a tab of the cover sheet 5. To pull off this cover sheet 5, the tab raised at the tear corner 3 and pulled towards the center of the cup. Included is a relatively large force is required, which also increases the risk of tearing off the tab on the contact surface of the sealing seam 4 conceals in itself.

Die erfindungsgemäße Modifikation ist in Fig. 2 dargestellt. Grundsätzlich ist von der Konfiguration der Fig. 1 auszugehen, wobei drei wesentliche Änderungen vorgesehen sind: 1. Die Siegelnaht 4 wird im Bereich der Aufreißecke 3 so weit wie es geht in die Ecke hineingeführt; 2. die laschenförmige Erweiterung des Randes 2 wird im Bereich der Aufreißecke 3 so vorbereitet, daß die in diesem Bereich angesiegelte Lasche der Abdeckfolie 5 gemeinsam mit der Lasche der Aufreißecke 3 abgeknickt und abgezogen wird; 3. die Oberkante des Bechers 1 hat im Bereich der Aufreißecke 3 einen Radius R1,der ein Vielfaches des Radius R2 der Lasche der Aufreißecke 3 und damit der Siegelnaht 4 in diesem Bereich beträgt.The modification according to the invention is shown in FIG. Basically the configuration of FIG. 1 is to be assumed, with three major changes are provided: 1. The sealing seam 4 is as far as in the area of the tear corner 3 it goes into the corner; 2. the flap-shaped extension of the edge 2 is prepared in the area of the tear corner 3 so that the sealed in this area The tab of the cover film 5 is kinked together with the tab of the tear-off corner 3 and is deducted; 3. the upper edge of the cup 1 has 3 in the area of the tear-off corner a radius R1 which is a multiple of the radius R2 of the tab of the tear corner 3 and so that the sealing seam 4 is in this area.

Bezugnehmend auf die zeichnerische Darstellung bedeutet dies, daß die Lasche der Aufreißecke 3 längs der vorbereiteten Sollbruchstelle 6 abgeknickt wird, wodurch dann ein wesentlich leichteres Abziehen der Abdeckfolie 5 möglich ist. Schließlich verteilt sich die Abziehkraft auf die beiden Komponenten f1 und 2 an der umlaufenden Siegelnaht 4.Referring to the drawing, this means that the tab of the tear corner 3 along the prepared one Predetermined breaking point 6 is kinked, which then makes it much easier to peel off the cover film 5 is possible. Ultimately, the pull-off force is distributed between the two components f1 and 2 on the circumferential sealing seam 4.

Die Vorbereitung bzw. Gestaltung der Sollbruchstelle 6 geschieht in der Weise, daß der Becher von unten entlang der Linie 6 eingesehnitten wird.The preparation or design of the predetermined breaking point 6 takes place in in such a way that the cup is seen from below along the line 6.

Claims (1)

Patentanspruch Aus thermisch verformbarer Kunststoff-Folie bestehendes, becherförmiges Behältnis, insbesondere zur Aufmahme von Joghurt od. dgl., mit einem an der offenen Becherseite umlaufenden und die Becheröffnung überkragenden Rand zur Aufsiegelung einer Abdeckfolie und mit mindestens einer an einer (im folgenden Aufreißecke genannten) Ecke des Randes vorgesehenen Aufreißlasche zum Abziehen der Abdeckfolie gekennzeichnet durch die Kombination folgender Merkmale im Bereich der Aufreißecke: a) der Radius (R1) des Bechers (1) beträgt ein Vielfaches des Radius? (R2) der Aufreißecke (3); b) die Siegelnaht (4) für die Abdeckfolie folgt der Kontur der Aufreißecke (3); c) der überkragende Rand (2) weist insbesondere tangential zur Rundung des Bechers (1) eine Sollbruchstelle (6) auf. Claim Made of thermally deformable plastic film, Cup-shaped container, in particular for receiving yoghurt or the like, with a on the open side of the cup, the rim protruding over the cup opening for sealing a cover film and with at least one on one (hereinafter Tear-off corner called) corner of the edge provided for pulling off the Cover film characterized by the combination of the following features in the area of Tear corner: a) the radius (R1) of the cup (1) is a multiple of the radius? (R2) the tear-off corner (3); b) the sealing seam (4) for the cover foil follows the contour the tear-off corner (3); c) the protruding edge (2) points in particular tangentially to round the cup (1) a predetermined breaking point (6).
DE19792928626 1979-07-16 1979-07-16 Plastics yoghurt cup with protruding edge - has radius several times of that of tear-off corner Withdrawn DE2928626A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792928626 DE2928626A1 (en) 1979-07-16 1979-07-16 Plastics yoghurt cup with protruding edge - has radius several times of that of tear-off corner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792928626 DE2928626A1 (en) 1979-07-16 1979-07-16 Plastics yoghurt cup with protruding edge - has radius several times of that of tear-off corner

Publications (1)

Publication Number Publication Date
DE2928626A1 true DE2928626A1 (en) 1981-02-12

Family

ID=6075810

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792928626 Withdrawn DE2928626A1 (en) 1979-07-16 1979-07-16 Plastics yoghurt cup with protruding edge - has radius several times of that of tear-off corner

Country Status (1)

Country Link
DE (1) DE2928626A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875620A (en) * 1988-11-02 1989-10-24 W. A. Lane, Inc. Fluted product cup
DE29618751U1 (en) * 1996-10-29 1997-02-06 Pickerd Gmbh & Co H Sales pack for food ingredients
ES2259869A1 (en) * 2004-03-22 2006-10-16 Danone, S.A. Container for milk or similar products, has debilitating zones in form of pairs of indentations formed in diametrically opposing parts of flange to facilitate folding of such flange
WO2009103096A1 (en) * 2008-02-18 2009-08-27 Teich Aktiengesellschaft Package comprising a container and a lid
WO2016198843A1 (en) * 2015-06-08 2016-12-15 Par-Pak Europe Limited Packaging for consumer products

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875620A (en) * 1988-11-02 1989-10-24 W. A. Lane, Inc. Fluted product cup
DE29618751U1 (en) * 1996-10-29 1997-02-06 Pickerd Gmbh & Co H Sales pack for food ingredients
ES2259869A1 (en) * 2004-03-22 2006-10-16 Danone, S.A. Container for milk or similar products, has debilitating zones in form of pairs of indentations formed in diametrically opposing parts of flange to facilitate folding of such flange
WO2009103096A1 (en) * 2008-02-18 2009-08-27 Teich Aktiengesellschaft Package comprising a container and a lid
WO2016198843A1 (en) * 2015-06-08 2016-12-15 Par-Pak Europe Limited Packaging for consumer products

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