EP0006993A2 - Method of connecting parts of a container formed from a plastics foil; a container or parts of a container - Google Patents

Method of connecting parts of a container formed from a plastics foil; a container or parts of a container Download PDF

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Publication number
EP0006993A2
EP0006993A2 EP79101675A EP79101675A EP0006993A2 EP 0006993 A2 EP0006993 A2 EP 0006993A2 EP 79101675 A EP79101675 A EP 79101675A EP 79101675 A EP79101675 A EP 79101675A EP 0006993 A2 EP0006993 A2 EP 0006993A2
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EP
European Patent Office
Prior art keywords
container
parts
connecting parts
container according
region
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Granted
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EP79101675A
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German (de)
French (fr)
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EP0006993B1 (en
EP0006993A3 (en
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Roland Veitinger
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/22—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding the sheet or blank being recessed to accommodate contents

Definitions

  • the invention relates to a container formed from plastic film, the two container parts of which can be connected to one another via connecting parts formed in edge regions, which can be pressed into one another and interact with each other like a push button.
  • Such containers have been known for a long time and have proven themselves in particular as hygienic transparent packaging for foodstuffs, for example juice bag containers, fruit or passenger catering.
  • the proposal to make the two parts of a container formed from plastic film connectable to one another via connecting parts formed in their edge regions, which can be pressed into one another and interacts with push buttons has not proven successful in cases in which containers designed in this way transport heavier objects - for example larger juice packs - should serve.
  • this measure leads to the fact that the edge of the container part can tear when the container is opened and can give rise to injuries.
  • the invention has for its object to provide a container of the type mentioned, with which even heavier objects can be transported without the risk that its two container parts will come apart during transport, but this container should be such that the connection of its two container parts is possible at any time without great effort and without risk of injury.
  • a container of the type described in the introduction in which the interconnected connecting parts are designed to be deformable in their head region by being pressed in together, and in which the inner connecting parts are each designed to be deformable in the sense of an expansion at least in the region of their insertion end.
  • its inner connecting parts have, for their deformability in the region of their insertion end, expansion deformations which are preferably inwardly directed beads which run parallel to the surface line of the inner connecting part.
  • the mutually associated walls of the inner and outer connecting parts of the container according to the invention are preferably rotationally symmetrical. These walls are preferably initially cylindrical starting from the edge of the container part and then curved, conical or frustoconical, which not only facilitates their deformation in the sense of widening, but also their manufacture.
  • the deformation of the inner connecting parts which takes place in the sense of widening, is facilitated by the fact that, as is the case in a preferred embodiment of the container according to the invention, they have inwardly directed beads in their head region, which preferably continue the beads which may be provided in their jacket region form.
  • the container 1 consists of two essentially identical parts 2, 3 which are connected to one another in an articulated manner and which, when folded, result in a box-like, essentially cuboid-shaped container (see FIGS. 1 and 2).
  • Kig-shaped container parts 2, 3 made of a flat, thin and relatively rigid plastic transparent film in the deep-drawing process.
  • the two container parts 2, 3 each represent a shell per se, the side walls of which run perpendicular to one another and to the base of the shell, these side walls — not shown in the drawing — can have stiffening ribs or a profiling serving to stiffen them.
  • One side wall 4 of one container part 2 is articulated to a side wall 5 of the other container part 3.
  • the other side walls of the two container parts each have edges 6-11 which are bent outward at right angles and which, when the two container parts 2, 3 are folded against one another, lie flat against one another.
  • the edges 7, 10 opposite the articulated connection of the two container parts 2, 3 are each made wider than the edges 6, 8 and 9, 11 adjacent to the articulated connection and each have a plurality of connecting parts 12, 13 in the embodiment shown which were formed during the manufacture of the container parts or thereafter from them using the deep-drawing process.
  • the walls of these connecting parts are essentially rotationally symmetrical in the embodiment shown, starting from the edge of the container part 7 or 10, they are initially cylindrical and then frustoconical.
  • the connecting parts 12 of the one container part 3 are dimensioned such that they can be pressed into the connecting parts 13 of the other container part 2.
  • the edges 7, 10 opposite the articulated connection of the container parts 2, 3 each also have a handle cutout 14, 15. Lugs 16, 17 protrude into the handle cutout 15 of the edge 10, which can be gripped under by a tab 20 projecting from below into the handle cutout 14 of the edge 7 when the two container parts 2, 3 are folded against one another.
  • the inner connecting parts 12 (see FIGS. 3 and 4) have in their frustoconical head region inwardly directed beads 18, which form a continuation of the inwardly directed beads 19 provided in their cylindrical shell.
  • the two container parts are to be folded against one another, taking care that the inner connecting parts 12, which are provided in the illustrated embodiment only on one container part, but can also be provided on both container parts the outer connecting parts of the other container part are aligned.
  • the mutually associated connecting parts can then be pushed into one another without greater effort and - with slight additional pressure on the frustoconical head regions 21 in the exemplary embodiment - locked against one another, the inner connecting parts in each case being deformed in the region of the transition between the circular cylindrical jacket and the head region in the sense of widening. This expansion is facilitated by the aforementioned beads 18 and 19.
  • the elongation deformations formed by the beads can also be designed in a different way, for example by a wave-like shape of the jacket or by generating wall thickness differences in the jacket.
  • the truncated cone shape of the head part 21 is also particularly advantageous because, as can be seen from FIG. 4, an internally stable position forms when pressed in, but this causes an expansion in the edge region of the cylindrical part near the head. This will u. a. achieved in that the transitions between the tapered part and the upper flat part prevent the head part from completely snapping inside.
  • the continuation of the beads in the region of the head part and in particular in the region of the frustoconical part also contributes to an expansion of the shell part in which the upper base area close to the head part is larger than the base surface with which the connecting part is formed on the edge .
  • the inner connecting parts 12 positively (with a stamp) and the outer connecting parts 13 negatively (into a negative shape).
  • the wall thickness of the inner connecting part 12 in the cover area becomes thicker than in the outer connecting part 13, so that the inner connecting part 12 has a particularly strong spreading force in the upper edge area.
  • the thin design of the outer connecting parts 13 has the consequence that they can be deformed by pressing without lateral beads.
  • the expansion of the inner connecting part 12 is mainly essential, while the lid area of the outer connecting part 13 must therefore also be pressed in; so that the pressing of the inner connecting part 12 is possible at all.

Abstract

Bei einem aus Kunststoff-Folie durch Tiefziehen geformten Behälter soll die Verbindung der beiden Behälterteile miteinander durch ineinander drückbare und druckknopfartig zusammenwirkende Verbindungsteile hergestellt werdenDie ineinander geschobenen Verbindungsteile wirken bei ihrem Ineinanderstecken noch nicht druckknopfartig und können zylindrisch sein. Wenn beide Teile zusammengesteckt sind, wird durch gemeinsames Eindrücken der Kopfbereiche det ineinander gesteckten Verbindungsteile eine Aufweitung dieser Kopfbereiche erzielt, so daß die beiden Verbindung teile formschlüssig miteinander verbunden sind. Vorzugsweise sind im Kopfbereich parallel zur Einsteckrichtung verlaufende Sicken vorgesehen, die die Dehnbarkeit des Kopfbereiches fördern. Besonders bevorzugt ist eine kegelstumpfförmige bzw. gewölbte Gestalt des Kopfendes der Verbindungsteile.In the case of a container formed from plastic film by deep-drawing, the connection of the two container parts to one another is to be produced by connecting parts which can be pressed into one another and interact with a push button. The connecting parts pushed into one another do not yet act like a button when they are inserted into one another and can be cylindrical. If both parts are plugged together, a joint expansion of these head regions is achieved by pressing the head regions together into one another so that the two connection parts are positively connected to one another. Beadings which run parallel to the direction of insertion are preferably provided in the head region and promote the extensibility of the head region. A frustoconical or arched shape of the head end of the connecting parts is particularly preferred.

Description

Die Erfindung betrifft einen aus Kunststoff-Folie geformten Behälter, dessen beide Behälterteile über in Randbereichen ausgeformte, ineinander drückbare und druckknopfartig zusammenwirkende Verbindungsteile miteinander verbindbar sind.The invention relates to a container formed from plastic film, the two container parts of which can be connected to one another via connecting parts formed in edge regions, which can be pressed into one another and interact with each other like a push button.

Derartige Behälter sind seit langem bekannt und haben sich insbesondere als hygienische Klarsichtverpackungen für Lebensmittel - z.B. Safttüten-Gebinde, Obst oder Fluggastverpflegung - bewährt. Der Vorschlag, die beiden Teile eines aus Kunststoff-Folie geformten Behälters über in deren Randbereichen ausgeformte, ineinander drückbare und druckknopfartig zusammenwirkende Verbindungsteile miteinander verbindbar zu machen, hat sich jedoch in den Fällen nicht bewährt, in denen so ausgebildete Behälter dem Transport schwererer Gegenstände - z.B. größerer Safttüten-Gebinde - dienen sollen. In diesen Fällen ist nicht gewährleistet, daß die beiderseitigen Verbindungsteile die ihr zugeordnete Aufgabe, die beiden Behälterteile fest miteinander zu verbinden, einwandfrei erfüllen. Aus diesem Grunde ist bereits vorgeschlagen worden, die beiden Behälterteile zusätzlich noch miteinander zu verschweißen oder zu verkleben, wodurch jedoch das Öffnen des Behälters erschwert wird. Außerdem führt diese Maßnahme dazu, daß die Behälterteil-Randbereiche beim Öffnen des Behälters einreißen und Anlaß zu Verletzungen geben können.Such containers have been known for a long time and have proven themselves in particular as hygienic transparent packaging for foodstuffs, for example juice bag containers, fruit or passenger catering. However, the proposal to make the two parts of a container formed from plastic film connectable to one another via connecting parts formed in their edge regions, which can be pressed into one another and interacts with push buttons, has not proven successful in cases in which containers designed in this way transport heavier objects - for example larger juice packs - should serve. In these cases, it is not guaranteed that the connection parts on both sides will be yours assigned task, to firmly connect the two container parts with each other, perform perfectly. For this reason, it has already been proposed to additionally weld or glue the two container parts together, but this makes opening the container more difficult. In addition, this measure leads to the fact that the edge of the container part can tear when the container is opened and can give rise to injuries.

Der Erfindung liegt die Aufgabe zugrunde, einen Behälter der eingangs erwähnten Art zu schaffen, mit dem auch schwerere Gegenstände transportiert werden können, ohne daß die Gefahr bestünde, daß sich seine beiden Behälterteile während des Transport voneinander lösen, wobei dieser Behälter jedoch so beschaffen sein sollte, daß die Verbindung seiner beiden Behälterteile jederzeit ohne großen Aufwand und ohne Verletzungsgefahr möglich ist.The invention has for its object to provide a container of the type mentioned, with which even heavier objects can be transported without the risk that its two container parts will come apart during transport, but this container should be such that the connection of its two container parts is possible at any time without great effort and without risk of injury.

Diese Aufgabe wird erfindungsgemäB durch einen Behälter der eingangs beschriebenen Art gelöst, bei dem die ineinander geschobenen Verbindungsteile in ihrem Kopfbereich durch gemeinsames Eindrücken verformbar ausgebildet sind,
und bei dem die inneren Verbindungsteile jeweils zumindest im Bereich ihres Einsteckendes im Sinne einer Aufweitung verformbar ausgebildet sind. Bei einem so ausgebildeten Behälter genügt es zur festen Verbindung seiner beiden Behälterteile, deren in ihren Randbereichen ausgeformte Verbindungsteile ineinander zu stecken und vorzugsweise ihre Kopfteile, die den "Boden" der napfartigen Verbindungsteile bilden, mehr oder weniger flach zu drücken.This object is achieved according to the invention by a container of the type described in the introduction, in which the interconnected connecting parts are designed to be deformable in their head region by being pressed in together,
and in which the inner connecting parts are each designed to be deformable in the sense of an expansion at least in the region of their insertion end. With a container designed in this way, it is sufficient for the firm connection of its two container parts, their connecting parts formed in their edge regions to be inserted into one another and preferably their head parts, which form the “bottom” of the cup-like connecting parts, to be pressed more or less flat.

Bei einer bevorzugten Ausführungsform des erfindungsgemäBeu-Behälters weisen dessen innere Verbindungsteile zu deren Verformbarkeit im Bereich ihres Einsteckendes Dehnungsverformungen auf, die vorzugsweise nach innen gerichtete, parallel zur Mantellinie des inneren Verbindungsteiles verlaufende Sicken sind.In a preferred embodiment of the Beu container according to the invention, its inner connecting parts have, for their deformability in the region of their insertion end, expansion deformations which are preferably inwardly directed beads which run parallel to the surface line of the inner connecting part.

Die einander zugeordneten Wandungen der inneren und der äußeren Verbindungsteile des erfindungsgemäßen Behälters sind vorzugsweise rotationssymmetrisch ausgebildet. Diese Wandungen sind dabei vorzugsweise vom Behälterteil-Rand ausgehend zunächst zylindrisch und daran anschließend gewölbt, kegelförmig oder kegelstumpfförmig ausgebildet, wodurch nicht nur ihre im Sinne einer Aufweitung erfolgende Verformung,sondern auch ihre Herstellung erleichtert wird.The mutually associated walls of the inner and outer connecting parts of the container according to the invention are preferably rotationally symmetrical. These walls are preferably initially cylindrical starting from the edge of the container part and then curved, conical or frustoconical, which not only facilitates their deformation in the sense of widening, but also their manufacture.

Die im Sinne einer Aufweitung erfolgende Verformung der inneren Verbindungsteile wird dadurch erleichtert, daß sie, was bei einer bevorzugten Ausführungsform des erfindungsgemäßen Behälters der Fall ist, in ihrem Kopfbereich nach innen gerichtete Sicken aufweisen, die vorzugsweise eine Fortsetzung der ggf. in ihrem Mantelbereich vorgesehenen Sicken bilden.The deformation of the inner connecting parts, which takes place in the sense of widening, is facilitated by the fact that, as is the case in a preferred embodiment of the container according to the invention, they have inwardly directed beads in their head region, which preferably continue the beads which may be provided in their jacket region form.

Bei einer bevorzugten Ausführungsform des erfindungsgemäßen Behälters sind dessen beide Behälterteile in an sich bekannter Weise gelenkartig miteinander verbunden und weisen an ihren, ihrer/gelenkartigen Verbindung gegenüberliegenden Randbereichen an sich bekannte Griffausschnitte auf, wobei der eine Behälterteil eine Lasche aufweist, die in den unteren Bereich des Griffausschnittes des anderen Behälterteiles hineinragende Lappen untergreift, wodurch eine zusätzliche Verbindung beider Behälterteile geschaffen ist, die auch aufrecht erhalten werden kann, wenn die übrigen, druckknopfartig zusammenwirkenden Verbindungsteile der beiden Behälterteile nicht miteinander in Wirkeingriff gebracht sind. Die vorerwähnte Lasche verläuft dabei vorzugsweise im wesentlichen quer zum Griffausschnitt und bildet dabei dessen untere Begrenzung, wodurch Verletzungen an den doch relativ scharfen Behälterkanten vermieden werden. Weitere Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen und der Zeichnung. In der Zeichnung zeigen jeweils schematisch:

  • Fig. 1 eine Seitenansicht eines erfindungsgemäßen Behälters,
  • Fig. 2 den in Fig. 1 dargestellten Behälter von vorn,
  • Fig. 3 ein inneres und ein diesem zugeordnetes äußeres Verbindungsteil, vor ihrer Verbindung,
  • Fig. 4 die in Fig. 3 dargestellten Verbindungsteile nach ihrer Verbindung und
  • Fig. 5 einen Ausschnitt aus dem oberen, einen Griffausschnitt aufweisenden Behälter-Rand.
In a preferred embodiment of the container according to the invention, its two container parts are articulated to one another in a manner known per se and have grip sections known per se at their edge regions opposite their / articulated connection, the one container part having a tab which extends into the lower region of the Grip cutout of the other part of the container engages under lobes, whereby an additional connection between the two parts of the container is created, which can also be maintained when the other connecting parts of the two parts of the container, which interact like a push button, are not brought into active engagement with one another. The above-mentioned tab preferably runs essentially transversely to the handle cutout and forms its lower limit, thereby avoiding injuries on the relatively sharp container edges. Further details of the invention emerge from the subclaims and the drawing. The drawings each show schematically:
  • 1 is a side view of a container according to the invention,
  • 2 the container shown in FIG. 1 from the front,
  • 3 an inner and an associated outer connecting part, before their connection,
  • Fig. 4 shows the connecting parts shown in Fig. 3 after their connection and
  • Fig. 5 shows a section of the upper, a handle cutout container edge.

Der erfindungsgemäße Behälter 1 besteht in der dargestellten Ausführungsform aus zwei im wesentlichen gleich ausgebildeten, gelenkartig miteinander verbundenen Teilen 2, 3, die im zusammengeklappten Zustand einen kofferartig ausgebildeten, im wesentlichen quaderförmigen Behälter ergeben (vgl.Fig. 1 und 2). Hergestellt wurden die beiden einstük-. kig ausgebildeten Behälterteile 2, 3 aus einer planen, dünnen und relativ starren Kunststoff-Klarsicht-Folie im Tiefziehverfahren. Die beiden Behälterteile 2, 3 stellen für sich betrachtet jeweils eine Schale dar, deren Seitenwände senkrecht zueinander und zum Schalenboden verlaufen, wobei diese Seitenwände - in der Zeichnung nicht dargestellte - Versteifungsrippen oder eine ihrer Versteifung dienenden Profilierung aufweisen können. Die eine Seitenwand 4 des einen Behälterteiles 2 ist gelenkig mit einer Seitenwand 5 des anderen Behälterteiles 3 verbunden. Die übrigen Seitenwände der beiden Behälterteile weisen jeweils rechtwinklig nach außen gebogene Ränder 6-11 auf, die , wenn die beiden Behälterteile 2, 3 gegeneinander geklappt sind, plan aneinander anliegen. Die der gelenkigen Verbindung der beiden Behälterteile 2, 3 gegenüberliegenden Ränder 7, 10 sind jeweils breiter ausgeführt, als die der gelenkigen Verbindung benachbarten Ränder 6, 8 bzw. 9, 11 und weisen jeweils mehrere, in der dargestellten Ausführungsform vier Verbindungsteile 12,13 auf, die bei der Herstellung der Behälterteile oder danach aus ihnen im Tiefziehverfahren ausgeformt wurden. Die Wandungen dieser Verbindungsteile sind bei der dargestellten Ausführungsform im wesentlichen rotationssymmetrisch ausgebildet, wobei.sie, ausgehend vom Behälterteil-Rand 7 bzw. 10, zunächst zylindrisch und daran anschließend kegelstumpfförmig ausgebildet sind. Die Verbindungsteile 12 des einen Behälterteiles 3 sind dabei so bemessen, daß sie in die Verbindungsteile 13 des anderen Behälterteiles 2 eindrückbar sind. Neben vorerwähnten Verbindungsteilen 12, 13 weisen die der gelenkigen Verbindung der Behälterteile 2, 3 gegenüberliegenden Ränder 7,10 jeweils noch einen Griffausschnitt 14, 15 auf. In den Griffausschnitt 15 des Randes 10 ragen seitliche Lappen 16, 17, die von einer von unten in den Griffausschnitt 14 des Randes 7 ragende Lasche 20 untergreifbar sind, wenn die beiden Behälterteile 2,3 gegeneinander geklappt sind.In the embodiment shown, the container 1 according to the invention consists of two essentially identical parts 2, 3 which are connected to one another in an articulated manner and which, when folded, result in a box-like, essentially cuboid-shaped container (see FIGS. 1 and 2). The two were made in one piece. Kig-shaped container parts 2, 3 made of a flat, thin and relatively rigid plastic transparent film in the deep-drawing process. The two container parts 2, 3 each represent a shell per se, the side walls of which run perpendicular to one another and to the base of the shell, these side walls — not shown in the drawing — can have stiffening ribs or a profiling serving to stiffen them. One side wall 4 of one container part 2 is articulated to a side wall 5 of the other container part 3. The The other side walls of the two container parts each have edges 6-11 which are bent outward at right angles and which, when the two container parts 2, 3 are folded against one another, lie flat against one another. The edges 7, 10 opposite the articulated connection of the two container parts 2, 3 are each made wider than the edges 6, 8 and 9, 11 adjacent to the articulated connection and each have a plurality of connecting parts 12, 13 in the embodiment shown which were formed during the manufacture of the container parts or thereafter from them using the deep-drawing process. The walls of these connecting parts are essentially rotationally symmetrical in the embodiment shown, starting from the edge of the container part 7 or 10, they are initially cylindrical and then frustoconical. The connecting parts 12 of the one container part 3 are dimensioned such that they can be pressed into the connecting parts 13 of the other container part 2. In addition to the aforementioned connecting parts 12, 13, the edges 7, 10 opposite the articulated connection of the container parts 2, 3 each also have a handle cutout 14, 15. Lugs 16, 17 protrude into the handle cutout 15 of the edge 10, which can be gripped under by a tab 20 projecting from below into the handle cutout 14 of the edge 7 when the two container parts 2, 3 are folded against one another.

Die inneren Verbindungsteile 12 weisen (vgl. Fig. 3 und 4) in ihrem kegelstumpfförmig ausgebildeten Kopfbereich nach innen gerichtete Sicken 18 auf, die eine Fortsetzung der in ihrem zylindrischen Mantel vorgesehenen, ebenfalls'nach innen gerichteten Sicken 19 bilden.The inner connecting parts 12 (see FIGS. 3 and 4) have in their frustoconical head region inwardly directed beads 18, which form a continuation of the inwardly directed beads 19 provided in their cylindrical shell.

Nachdem der eine und/oder der andere der beiden Behälterteile mit zu transportierendem Gut gefüllt ist, sind die beiden Behälterteile gegeneinander zu klappen, wobei darauf zu achten ist, daß die inneren Verbindungsteile 12, die bei der dargestellten Ausführungsform nur an einem Behälterteil vorgesehen sind, aber auch an beiden Behälterteilen vorgesehen sein können, auf die äußeren Verbindungsteile des anderen Behälterteiles ausgerichtet sind. Danach lassen sich die einander zugeordneten Verbindungsteile ohne gröperen Kraftaufwand ineinander schieben und - durch leichten zusätzlichen Druck auf die beim Ausführungsbeispiel kegelstumpfartigen Kopfbereiche 21 - gegeneinander verriegeln, wobei jeweils die inneren Verbindungsteile im Bereich des Uberganges zwischen kreiszylindrischem Mantel und Kopfbereich im Sinne einer Aufweitung verformt werden. Diese Aufweitung wird durch die vorerwähnten Sicken 18 und 19 erleichtert. Die durch die Sicken gebildeten Dehnungsverformungen können auch in anderer Weise ausgebildet sein, beispielsweise durch eine wellenartige Gestalt des Mantels oder durch die Erzeugung von Wandstärkeunterschieden im Mantel.After one and / or the other of the two containers parts is filled with goods to be transported, the two container parts are to be folded against one another, taking care that the inner connecting parts 12, which are provided in the illustrated embodiment only on one container part, but can also be provided on both container parts the outer connecting parts of the other container part are aligned. The mutually associated connecting parts can then be pushed into one another without greater effort and - with slight additional pressure on the frustoconical head regions 21 in the exemplary embodiment - locked against one another, the inner connecting parts in each case being deformed in the region of the transition between the circular cylindrical jacket and the head region in the sense of widening. This expansion is facilitated by the aforementioned beads 18 and 19. The elongation deformations formed by the beads can also be designed in a different way, for example by a wave-like shape of the jacket or by generating wall thickness differences in the jacket.

Besonders vorteilhaft ist auch die Kegelstumpfform des Kopfteils 21, weil sich, wie aus Fig. 4 zu ersehen ist, beim Eindrücken eine innere stabile Lage bildet, die jedoch eine Aufweitung im kopfnahen Randbereich des zylindrischen Teils hervorruft. Dies wird u. a. dadurch erreicht, daß die Obergänge zwischen dem kegligen Teil und dem oberen flachen Teil ein völliges Nachinnenschpappen des Kopfteils verhindern. Auch die Weiterführung der Sicken im Bereich des Kopftailes und insbesondere im Bereich des kegelstumpfförmigen Teils trägt dazu bei, eine Aufweitung des Mantelteils zu erreichen, bei dem die obere, dem Kopfteil nahe Grundfläche größer ist als die Basisfläche, mit der das Verbindungsteil am Rand angeformt ist.The truncated cone shape of the head part 21 is also particularly advantageous because, as can be seen from FIG. 4, an internally stable position forms when pressed in, but this causes an expansion in the edge region of the cylindrical part near the head. This will u. a. achieved in that the transitions between the tapered part and the upper flat part prevent the head part from completely snapping inside. The continuation of the beads in the region of the head part and in particular in the region of the frustoconical part also contributes to an expansion of the shell part in which the upper base area close to the head part is larger than the base surface with which the connecting part is formed on the edge .

Als besonders vorteilhaft hat sich erwiesen, die inneren Verbindungsteile 12 positiv (mit einem Stempel) und die äußeren Verbindungsteile 13 negativ ( in eine negative Form hinein) zu formen. Dadurch wird die Wandstärke des inneren Verbindungsteiles 12 im Deckelbereich stärker als beim äußeren Verbindungsteil 13, sodaß sich beim inneren Verbindungsteil 12 eine besonders kräftige Spreizungskraft im oberen Randbereich ergibt. Die dünne Ausbildung der äußeren Verbindungsteile 13 hat zur Folge, daß diese auch ohne seitliche Sicken durch Eindrücken verformbar sind.It has proven to be particularly advantageous to shape the inner connecting parts 12 positively (with a stamp) and the outer connecting parts 13 negatively (into a negative shape). As a result, the wall thickness of the inner connecting part 12 in the cover area becomes thicker than in the outer connecting part 13, so that the inner connecting part 12 has a particularly strong spreading force in the upper edge area. The thin design of the outer connecting parts 13 has the consequence that they can be deformed by pressing without lateral beads.

Bei der Verbindung nach der Erfindung ist hauptsächlich die Spreizung des inneren Verbindungsteiles 12 wesentlich, während der Deckelbereich des äußeren Verbindungsteiles 13 auch deswegen mit eingedrückt werden muß; damit das Eindrücken des inneren Verbindungsteiles 12 überhaupt möglich ist.In the connection according to the invention, the expansion of the inner connecting part 12 is mainly essential, while the lid area of the outer connecting part 13 must therefore also be pressed in; so that the pressing of the inner connecting part 12 is possible at all.

Claims (9)

1. Aus Kunststoff-Folie geformter Behälter, dessen beide Behälter-Teile über in Randbereichen ausgeformte, ineinander drückbare und druckknopfartig zusammenwirkende Verbindungsteile miteinander verbindbar sind, dadurch gekennzeichnet, daß die ineinander geschobenen Verbindungsteile (12, 13) in ihrem Kopfbereich durch gemeinsames Eindrücken verformbar ausgebildet sind, und daß die inneren Verbindungsteile (12) jeweils zumindest im Bereich ihres Einsteckendes im Sinne einer Aufweitung verformbar ausgebildet sind.1. Made of plastic film container, the two container parts can be connected to each other via molded in edge areas, pushable and push button-like cooperating connecting parts, characterized in that the nested connecting parts (12, 13) formed deformable in their head area by pressing together and that the inner connecting parts (12) are each deformable at least in the region of their insertion end in the sense of an expansion. 2. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß die inneren Verbindungsteile (12) zu deren Verformbarkeit im Bereich ihrer Einsteckenden Dehnungsverformungen aufweisen.2. Container according to claim 1, characterized in that the inner connecting parts (12) to their deformability in the region of their insertion ends have expansion deformations. 3. Behälter nach Anspruch 2, dadurch gekennzeichnet, daß die Dehnungsverformungen nach innen gerichtete, parallel zur Mantellinie der inneren Verbindungsteile(12) verlaufende Sicken (19) sind.3. Container according to claim 2, characterized in that the elongation deformations are inwardly directed, parallel to the surface line of the inner connecting parts (12) beads (19). 4. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die einander zugeordneten Wandungen der Verbindungsteile (12,13) rotationssymmetrisch ausgebildet sind.4. Container according to one of the preceding claims, characterized in that the mutually associated walls of the connecting parts (12, 13) are rotationally symmetrical. 5. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die einander zugeordneten Wandungen der Verbindungsteile (12,13)vom Behälterteil-Rand ausgehend zunächst zylindrisch und daran anschliessend gewölbt, bzw.-kegelförmig bzw. kegelstumpfförmig ausgebildet sind.5. Container according to one of the preceding claims, characterized in that the mutually assigned walls of the connecting parts (12, 13) starting from the container part edge are initially cylindrical and then curved, or are conical or frustoconical. 6. Behälter nach Anspruch 5, dadurch gekennzeichnet, daß die inneren Verbindungsteile (12) in ihrem Kopfbereich nach innen gerichtete Sicken (18) aufweisen.6. A container according to claim 5, characterized in that the inner connecting parts (12) in their head area have inwardly directed beads (18). 7. Behälter nach Anspruch 6, dadurch gekennzeichnet, daß die im Kopfbereich der inneren Verbindungsteile (12) vorgesehenen Sicken (18) eine Fortsetzung von ggf. im Mantelbereich vorgesehenen Sicken (19) bilden.7. A container according to claim 6, characterized in that the beads (18) provided in the head region of the inner connecting parts (12) form a continuation of beads (19) which may be provided in the jacket region. 8. Behälter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die beiden Behälterteile (2, 3 ) in an sich bekannter Weise gelenkartig miteinander verbunden sind und in ihren, ihre gelenkartigen Verbindung gegenüber-liegenden Randbereichen Griffausschnitte (14,15) aufweisen und daß der eine Behälterteile ( 2) eine Lasche (20) aufweist, die in den unteren Bereich des Griffausschnittes (15) des anderen Behälterteiles (3) hineinragende Lappen (16,17)untergreift.8. Container according to one of the preceding claims, characterized in that the two container parts (2, 3) are articulated to one another in a manner known per se and in their, their articulated connection-opposite edge regions have handle cutouts (14, 15) and that one of the container parts (2) has a tab (20) which engages under tabs (16, 17) which protrude into the lower region of the handle cutout (15) of the other container part (3). 9. Behälter nach Anspruch 8, dadurch gekennzeichnet, daß die Lasche (20) im wesentlichen quer zum Griffausschnitt (15) verläuft und die untere Begrenzung des Griffausschnittes (15) bildet.9. A container according to claim 8, characterized in that the tab (2 0 ) extends substantially transversely to the handle cutout (15) and forms the lower limit of the handle cutout (15).
EP79101675A 1978-06-13 1979-05-31 Method of connecting parts of a container formed from a plastics foil; a container or parts of a container Expired EP0006993B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2825837 1978-06-13
DE2825837A DE2825837C3 (en) 1978-06-13 1978-06-13 Container molded from plastic film

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EP0006993A2 true EP0006993A2 (en) 1980-01-23
EP0006993A3 EP0006993A3 (en) 1980-03-05
EP0006993B1 EP0006993B1 (en) 1982-01-06

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EP79101675A Expired EP0006993B1 (en) 1978-06-13 1979-05-31 Method of connecting parts of a container formed from a plastics foil; a container or parts of a container

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US (1) US4225077A (en)
EP (1) EP0006993B1 (en)
DE (1) DE2825837C3 (en)

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Also Published As

Publication number Publication date
DE2825837C3 (en) 1981-04-30
EP0006993B1 (en) 1982-01-06
US4225077A (en) 1980-09-30
DE2825837B2 (en) 1980-05-14
EP0006993A3 (en) 1980-03-05
DE2825837A1 (en) 1979-12-20

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