EP0525160B1 - Folding box with inner bag and process for manufacturing same - Google Patents
Folding box with inner bag and process for manufacturing same Download PDFInfo
- Publication number
- EP0525160B1 EP0525160B1 EP92905491A EP92905491A EP0525160B1 EP 0525160 B1 EP0525160 B1 EP 0525160B1 EP 92905491 A EP92905491 A EP 92905491A EP 92905491 A EP92905491 A EP 92905491A EP 0525160 B1 EP0525160 B1 EP 0525160B1
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- EP
- European Patent Office
- Prior art keywords
- section
- folding box
- fold lines
- glued
- body portion
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
- B65D5/60—Loose, or loosely attached, linings
- B65D5/603—Flexible linings loosely glued to the wall of the container
- B65D5/606—Bags or bag-like tubes loosely glued to the wall of a "tubular" container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
- B31B2120/408—Construction of rigid or semi-rigid containers lined or internally reinforced by folding a sheet or blank around an inner tubular liner
Definitions
- the invention relates to a pre-glued, flat-lying folding box, consisting of a fuselage part with closing flaps adjoining its open sides and a film tube section drawn therein according to the preamble of claim 1.
- folding boxes are generally known.
- folding boxes are used for packaging pourable products, especially liquids. To save space, they are delivered to the bottler of the bulk goods in a flat position. At the bottler, the folding boxes are set up in a filling and packaging machine, first sealed and closed at one end, filled with the product and then sealed and closed at the other end.
- the invention has for its object to provide a folding box of the type mentioned, which is easier to erect, fill and seal.
- the invention is also based on the object of specifying a method for producing a folding box of the aforementioned type. This object is achieved by the invention specified in claim 6. Advantageous developments of the method are the subject of the dependent claims.
- the invention provides that the hose section into the folding box has continuous, embossed crease lines extending to the edge of the hose section at all those points that lie in the corners of the fuselage cross section, Give the folding box a largely rectangular cross-section when the box is not yet closed.
- the fold lines that lie in the pre-glued, flat-lying folding box in the folding lines that connect the stretched walls of the folding box body to one another have the effect that the aforementioned lip effect is largely avoided.
- a certain amount of air is formed between the walls of the tube section lying one on top of the other when the folding box is not erected, especially in the area between the flaps, which prevents the edges of the tube section from lying completely close together, even sticking to one another and due to the fact that when the folding box is erected inside the resulting negative pressure completely seal off the interior of the hose section from the outside.
- the tube section in the area between the closure flaps, with which it is not connected offers an improved rectangular shape of the opening cross section, which not only facilitates the filling but also the subsequent sealing of the tube section, for example by welding.
- the invention is particularly suitable for use in combination with tube materials which have a certain bounce, as is the case with many plastic films, for example.
- composite films made of paper and plastic made of paper, aluminum and polyethylene, made of aluminum and plastic or of different types of plastic come into consideration as tube materials.
- So-called monofilms which are particularly desirable for disposal reasons, can also be used, as can polyester foils.
- Such foils are sealed using heat, ultrasound or high frequency, depending on the type of material selected.
- Cardboard, cardboard, corrugated cardboard and other other folding box materials can be used as the material for the folding box.
- a film web made of a sealable material is fed from a roll in the usual way.
- This film web is not only formed, as is generally known in the prior art, by folding and sealing, in particular welding, of the two edges to form a tube, but it is made into this film web in a total of four longitudinal lines that extend across the width of the film web are distributed, kinks introduced, in particular embossed, which have the effect with the appropriate choice of material of the film that the film is no longer completely flat after folding and welding.
- At least in partial areas of the cross section there are air cushions within the hose or the hose section separated from the hose, which are open to the outside and thus allow air to flow in during erection.
- Such a tube section is placed on a prepared, flat, open cardboard blank in a flattened state so that two of the areas of the film tube section delimited from one another by a crease line come to lie on the matching two fields of the body part of the folding box blank.
- the hose section is glued to the two fields of the body part of the folding box blank.
- the part of the folding box blank that is not covered by the tube section is then folded over onto the film tube section and glued to it in the region of the other two torso fields of the folding box blank.
- the folding box blank is glued to itself by means of an adhesive flap which is formed on the folding box blank, so that a pre-glued, flat-lying folding box is formed which, when erected, can be shaped into a cuboid tubular body of rectangular cross-section.
- the longitudinal weld seam which is produced from the film when the tube is created, runs in a region of the tube section lying in the folding box, where it does not hinder the subsequent sealing of the tube section to form a closed bag.
- This weld seam preferably runs in one of the two main surfaces of the folding box.
- the kink lines can be formed in the film web with the aid of conventional folding sheets, over which the film web is drawn, or also with the aid of embossing rollers, which are provided with circumferential grooves, and matching embossing rollers which are inserted into the Protrude circumferential grooves and form a narrow gap with them, between which the material of the film web is carried out. Combinations of both types of processes are also possible. Possibly. the effect of heat can favor the formation and in particular the durability of the kink lines.
- FIG. 1 a folding box of conventional shape with a body consisting of main surfaces 1 and side surfaces 2, on which top and bottom flaps 3 and 4 are attached.
- a film tube section 5 which is produced from a film web and has a welded longitudinal seam 6 which runs in one of the main surfaces of the folding box.
- This tube section 5 consists of a sealable material, in particular a heat-sealable material, such as, for example, thermoplastic or coated metal foil or the like, as described at the beginning.
- the folding box is already closed on the floor, where the hose section 5 is also sealed and folded.
- the lower sealing seam which forms the bottom of the inner bag produced from the tube section 5, is designated by 7 in FIG. 1.
- the length of the tube section is greater than the length of the trunk of the folding box, so that it extends extends between the flaps 3 and 4, which are shown folded away laterally in FIG. 1, in order to make the upper end of the inner bag formed by the tube section 5 accessible for sealing (after filling).
- the hose section 5 not only has an acute angle where two adjoining areas of the fuselage form an acute angle in the flat state of the pre-glued folding box (these areas are each labeled with the same suffixes a and b) on, but they also have embossed crease lines 9 where, in the pre-glued, flat-lying folding box, two adjoining main surfaces of the fuselage meet at an acute or elongated angle.
- These fields are labeled with unequal suffixes a and b in FIG. 2.
- FIG. 2 is not to scale so that the fold lines 9 can be shown better.
- the bonds between the hose section 5 and the inner surfaces of the fuselage are only indicated by a few broad adhesive points 10.
- the bonds can be over the entire surface, so that the crease lines 9 are not particularly pronounced in the fuselage.
- the kink lines 9 emerge in the area of the hose section 5 which lies between the closure flaps 3 and 4, which are not glued to the hose section.
- the folding box shown in Fig. 1 is filled, after filling, if not already done, the flaps 3 and 4 are folded away from the inner bag formed by the tube section 5 so that the closing and sealing tools can be brought up to the inner bag, the inner bag is then sealed and folded into the folding box, whereupon the flaps 4 and 3 are folded over and glued together, so that the folding box is closed.
Abstract
Description
Die Erfindung bezieht sich auf eine vorverklebte, flachliegende Faltschachtel, bestehend aus einem Rumpfteil mit sich an dessen offenen Seiten anschließenden Verschlußklappen und einen darin eingezogenen Folienschlauchabschnitt nach dem Oberbegriff des Anspruchs 1. Solche Faltschachteln sind allgemein bekannt.The invention relates to a pre-glued, flat-lying folding box, consisting of a fuselage part with closing flaps adjoining its open sides and a film tube section drawn therein according to the preamble of
Diese Faltschachteln finden zur Verpackung von schüttfähigen Produkten, insbesondere von Flüssigkeiten, Verwendung. Sie werden aus Raumersparnisgründen dem Abfüller des Schüttguts in flachliegendem Zustand zugeliefert. Beim Abfüller werden die Faltschachteln in einer Abfüll- und Verpackungsmaschine aufgerichtet, zunächst am einen Ende versiegelt und verschlossen, mit dem Produkt befüllt und dann am anderen Ende versiegelt und verschlossen.These folding boxes are used for packaging pourable products, especially liquids. To save space, they are delivered to the bottler of the bulk goods in a flat position. At the bottler, the folding boxes are set up in a filling and packaging machine, first sealed and closed at one end, filled with the product and then sealed and closed at the other end.
Es hat sich dabei herausgestellt, daß das Aufrichten der Faltschachteln in der Verpackungsmaschine gewisse Schwierigkeiten aufwirft. Diese resultieren daraus, daß der Schlauchabschnitt in der flachliegenden Faltschachtel sehr flach liegt, sodaß seine Wände aneinanderliegen und sich an seinen Rändern beim Aufrichten ein sogenannter Lippeneffekt entwickelt, weil durch das enge Aneinanderliegen der Schlauchwände keine Luft in den Innenraum des Schlauchabschnitts eindringen kann. Im Gegenteil, der durch das Aufrichten der Faltschachtel im Innern des Schlauchabschnitts entstehende Unterdruck verstärkt diesen Lippeneffekt sogar noch. Nach dem Aufrichten zeigt sich, daß an dem offenen Querschnitt des Schlauchabschnitts nur zwei einander gegenüberliegende Ecken in ausgeprägterer Form vorhanden sind, nämlich diejenigen, an denen der Schlauchabschnitt in der flachliegenden Faltschachtel geknickt lag. Diese ungenügende Ausbildung der angestrebten Rechteckgestalt der Querschnittsöffnung des Schlauchabschnitts bereitet sowohl beim Befüllen der aufgerichteten Faltschachtel als auch beim Versiegeln des Schlauchabschnitts Schwierigkeiten.It has been found that erecting the folding boxes in the packaging machine poses certain difficulties. These result from the fact that the tube section lies very flat in the flat-lying folding box, so that its walls lie against one another and a so-called lip effect develops on its edges when straightening up, because no air can penetrate into the interior of the tube section due to the close abutment of the tube walls. On the contrary, the negative pressure created by erecting the folding box inside the tube section even intensifies this lip effect. After straightening up, it becomes apparent that there are only two mutually opposite corners of the open cross section of the tube section in a more pronounced form, namely those at which the tube section was kinked in the flat-lying folding box. This inadequate formation of the desired rectangular shape of the cross-sectional opening of the hose section prepares both during filling Difficulties with the erected folding box as well as when sealing the tube section.
Der Erfindung liegt die Aufgabe zugrunde, eine Faltschachtel der eingangs genannten Art anzugeben, die sich leichter aufrichten, befüllen und versiegeln läßt.The invention has for its object to provide a folding box of the type mentioned, which is easier to erect, fill and seal.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der davon abhängigen Ansprüche.This object is solved by the features of
Außerdem liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zum Herstellen einer Faltschachtel der vorgenannten Art anzugeben. Diese Aufgabe wird durch die im Anspruch 6 angegebene Erfindung gelöst. Vorteilhafte Weiterbildungen des Verfahrens sind Gegenstand der davon abhängigen Ansprüche.The invention is also based on the object of specifying a method for producing a folding box of the aforementioned type. This object is achieved by the invention specified in
Im Gegensatz zum Stand der Technik sieht die Erfindung vor, daß der Schlauchabschnitt in die Faltschachtel an all denjenigen Stellen, die in den Ecken des Rumpfquerschnitts liegen, durchgehende, sich bis zum Rand des Schlauchabschnitts erstreckende, geprägte Knicklinien aufweist, die dem Schlauchabschnitt im aufgerichteten, noch nicht verschlossenen Zustand der Faltschachtel einen weitgehend rechteckigen Querschnitt verleihen.In contrast to the prior art, the invention provides that the hose section into the folding box has continuous, embossed crease lines extending to the edge of the hose section at all those points that lie in the corners of the fuselage cross section, Give the folding box a largely rectangular cross-section when the box is not yet closed.
Verbunden mit einer gewissen Sprungkraft des Folienschlauchmaterials haben die Knicklinien, die in der vorverklebten, flachliegenden Faltschachtel in den Faltlinien liegen, die gestreckt liegende Wände des Faltschachtelrumpfes miteinander verbinden, die Wirkung, daß der vorgenannte Lippeneffekt weitgehend vermieden wird. Es entsteht zwischen den im unaufgerichteten Zustand der Faltschachtel aufeinanderliegenden Wänden des Schlauchabschnitts besonders im Bereich zwischen den Verschlußklappen ein gewisses Luftpolster, das verhindert, daß die Ränder des Schlauchabschnitts vollständig dicht aufeinanderliegen, ja aneinander kleben und durch den beim Aufrichten der Faltschachtel in deren Innern entstehenden Unterdruck den Innenraum des Schlauchabschnitts vollständig nach außen abschließen.Combined with a certain bounce of the film tube material, the fold lines that lie in the pre-glued, flat-lying folding box in the folding lines that connect the stretched walls of the folding box body to one another have the effect that the aforementioned lip effect is largely avoided. A certain amount of air is formed between the walls of the tube section lying one on top of the other when the folding box is not erected, especially in the area between the flaps, which prevents the edges of the tube section from lying completely close together, even sticking to one another and due to the fact that when the folding box is erected inside the resulting negative pressure completely seal off the interior of the hose section from the outside.
Im aufgerichteten Zustand der Faltschachtel bietet der Schlauchabschnitt im Bereich zwischen den Verschlußklappen, mit denen er nicht verbunden ist, eine verbesserte Rechteckgestalt des Öffnungsquerschnitts, was nicht nur das Befüllen, sondern auch das anschließende Versiegeln des Schlauchabschnitts, beispielsweise durch Verschweißen, erleichtert.In the erected state of the folding box, the tube section in the area between the closure flaps, with which it is not connected, offers an improved rectangular shape of the opening cross section, which not only facilitates the filling but also the subsequent sealing of the tube section, for example by welding.
Die Erfindung ist besonders zur Verwendung in Kombination mit Schlauchmaterialien geeignet, die eine gewisse Sprungkraft aufweisen, wie dies beispielsweise bei vielen Kunststoffolien der Fall ist.The invention is particularly suitable for use in combination with tube materials which have a certain bounce, as is the case with many plastic films, for example.
Als Schlauchmaterialien kommen insbesondere Verbundfolien aus Papier und Kunststoff, aus Papier, Aluminium und Polyethylen, aus Aluminium und Kunststoff oder aus verschiedenen Kunststoffarten in Betracht. Auch sog. Monofolien, die aus entsorgungstechnischen Gründen besonders erwünscht sind, können verwendet werden, sowie Polyesterfolien.In particular, composite films made of paper and plastic, made of paper, aluminum and polyethylene, made of aluminum and plastic or of different types of plastic come into consideration as tube materials. So-called monofilms, which are particularly desirable for disposal reasons, can also be used, as can polyester foils.
Die Versiegelung solcher Folien erfolgt mit Hilfe von Wärme, Ultraschall oder Hochfrequenz, je nach gewählter Materialart.Such foils are sealed using heat, ultrasound or high frequency, depending on the type of material selected.
Als Material für die Faltschachtel kommen Karton, Pappe, Wellpappe und andere übrliche Faltschachtelmaterialien in Betracht.Cardboard, cardboard, corrugated cardboard and other other folding box materials can be used as the material for the folding box.
Zur Herstellung eines solchen Faltschachtelzuschnitts wird in üblicher Weise eine Folienbahn aus einem siegelbaren Material von einer Rolle zugeführt. Diese Folienbahn wird nicht nur, wie es im Stand der Technik allgemein bekannt ist, durch Umfalten und Versiegeln, insbesondere Verschweißen, der beiden Ränder zu einem Schlauch geformt, sondern es werden in diese Folienbahn insgesamt in vier längslaufenden Linien, die über die Breite der Folienbahn verteilt sind, Knicke eingebracht, insbesondere eingeprägt, die bei passender Materialwahl der Folie zur Wirkung haben, daß die Folie nach dem Umfalten und Verschweißen nicht mehr völlig flach liegt. Es ergeben sich wenigstens in Teilbereichen des Querschnitts Luftpolster innerhalb des Schlauches bzw. des von dem Schlauch abgetrennten Schlauchabschnitts, die nach außen offen sind und somit das Einströmen von Luft beim Aufrichten ermöglichen.In order to produce such a folding box blank, a film web made of a sealable material is fed from a roll in the usual way. This film web is not only formed, as is generally known in the prior art, by folding and sealing, in particular welding, of the two edges to form a tube, but it is made into this film web in a total of four longitudinal lines that extend across the width of the film web are distributed, kinks introduced, in particular embossed, which have the effect with the appropriate choice of material of the film that the film is no longer completely flat after folding and welding. At least in partial areas of the cross section there are air cushions within the hose or the hose section separated from the hose, which are open to the outside and thus allow air to flow in during erection.
Ein solcher Schlauchabschnitt wird auf einen vorbereiteten, flachliegenden, offenen Kartonzuschnitt in flachgedrücktem Zustand so aufgelegt, daß zwei der durch eine Knicklinie gegeneinander abgegrenzte Flächen des Folienschlauchabschnitts auf den dazu passenden zwei Feldern des Rumpfteils des Faltschachtelzuschnitts zu liegen kommen. Dabei wird der Schlauchabschnitt auf den genannten zwei Feldern des Rumpfteils des Faltschachtelzuschnitts festgeklebt. Anschließend wird der von dem Schlauchabschnitt nicht bedeckte Teil des Faltschachtelzuschnitts auf den Folienschlauchabschnitt umgefaltet und mit ihm im Bereich der beiden anderen Rumpffelder des Faltschachtelzuschnitts verklebt. Außerdem wird der Faltschachtelzuschnitt mit sich selbst verklebt vermittels einer Klebelasche, die an dem Faltschachtelzuschnitt ausgebildet ist, sodaß eine vorverklebte, flachliegende Faltschachtel ausgebildet wird, die sich beim Aufrichten zu einem quaderähnlichen Rohrkörper von rechteckigem Querschnitt umformen läßt. Es versteht sich, daß die längslaufende Schweißnaht, die beim Erstellen des Schlauches aus der Folie erzeugt wird, in einem solchen Bereich des in der Faltschachtel liegenden Schlauchabschnitts verläuft, wo sie das spätere Versiegeln des Schlauchabschnitts zu einem geschlossenen Beutel nicht behindert. Vorzugsweise verläuft diese Schweißnaht in einer der beiden Hauptflächen der Faltschachtel.Such a tube section is placed on a prepared, flat, open cardboard blank in a flattened state so that two of the areas of the film tube section delimited from one another by a crease line come to lie on the matching two fields of the body part of the folding box blank. The hose section is glued to the two fields of the body part of the folding box blank. The part of the folding box blank that is not covered by the tube section is then folded over onto the film tube section and glued to it in the region of the other two torso fields of the folding box blank. In addition, the folding box blank is glued to itself by means of an adhesive flap which is formed on the folding box blank, so that a pre-glued, flat-lying folding box is formed which, when erected, can be shaped into a cuboid tubular body of rectangular cross-section. It goes without saying that the longitudinal weld seam, which is produced from the film when the tube is created, runs in a region of the tube section lying in the folding box, where it does not hinder the subsequent sealing of the tube section to form a closed bag. This weld seam preferably runs in one of the two main surfaces of the folding box.
Die Knicklinien können in der Folienbahn mit Hilfe üblicher Faltbleche, über die die Folienbahn gezogen wird, ausgebildet werden, oder auch mit Hilfe von Prägewalzen, die mit Umfangsnuten versehen sind, und dazu passenden Prägerollen, die in die Umfangsnuten vorstehen und mit diesen einen schmalen Spalt ausbilden, zwischen denen das Material der Folienbahn durchgeführt wird. Kombinationen beider Verfahrensarten sind ebenfalls möglich. Ggf. kann Wärmeeinwirkung die Ausbildung und insbesondere auch die Beständigkeit der Knicklinien begünstigen.The kink lines can be formed in the film web with the aid of conventional folding sheets, over which the film web is drawn, or also with the aid of embossing rollers, which are provided with circumferential grooves, and matching embossing rollers which are inserted into the Protrude circumferential grooves and form a narrow gap with them, between which the material of the film web is carried out. Combinations of both types of processes are also possible. Possibly. the effect of heat can favor the formation and in particular the durability of the kink lines.
Die Erfindung soll nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels einer Faltschachtel näher erläutert werden. Es zeigt:
- Fig. 1
- eine perspektivische Darstellung einer Faltschachtel im aufgerichteten, teilverschlossenen, zum Befüllen bereitgestellten Zustand, und
- Fig. 2
- einen Querschnitt durch den Rumpf der Faltschachtel nach Fig. 1 in einem teilaufgerichteten Zustand.
- Fig. 1
- a perspective view of a folding box in the erected, partially closed, ready for filling condition, and
- Fig. 2
- a cross section through the trunk of the folding box of FIG. 1 in a partially erected state.
Man erkennt in Fig. 1 eine Faltschachtel üblicher Gestalt mit einem Rumpf aus Hauptflächen 1 und Seitenflächen 2, an denen oben und unten Verschlußklappen 3 und 4 angebracht sind.One can see in FIG. 1 a folding box of conventional shape with a body consisting of
In der Faltschachtel befindet sich ein Folienschlauchabschnitt 5, der aus einer Folienbahn hergestellt ist und eine geschweißte Längsnaht 6 aufweist, die in einer der Hauptflächen der Faltschachtel verläuft. Dieser Schlauchabschnitt 5 besteht aus einem siegelbaren Material, insbesondere heißsiegelbaren Material, wie beispielsweise thermoplastischem Kunststoff oder beschichteter Metallfolie oder dgl., wie eingangs beschrieben.In the folding box there is a
In der Zeichnung ist die Faltschachtel am Boden bereits verschlossen, wo auch der Schlauchabschnitt 5 bereits versiegelt und eingefaltet ist. Die untere Siegelnaht, die den Boden des aus dem Schlauchabschnitt 5 hergestellten Innenbeutels bildet, ist in Fig. 1 mit 7 bezeichnet.In the drawing, the folding box is already closed on the floor, where the
Man erkennt, daß die Länge des Schlauchabschnittes größer ist, als die Länge des Rumpfes der Faltschachtel, sodaß er sich bis zwischen die Verschlußklappen 3 und 4 erstreckt, die in Fig. 1 seitlich weggeklappt dargestellt sind, um das obere Ende des von dem Schlauchabschnitt 5 gebildeten Innenbeutels zum Versiegeln (nach dem Befüllen) zugänglich zu machen.It can be seen that the length of the tube section is greater than the length of the trunk of the folding box, so that it extends extends between the
Wie Fig. 1 deutlich zeigt, sind die Ecken des Schlauchabschnitts 5 sehr ausgeprägt ausgebildet. Dies rührt von den erfindungsgemäßen Maßnahmen her.As clearly shown in FIG. 1, the corners of the
Wie Fig. 2 schematisch im Querschnitt zeigt, weist der Schlauchabschnitt 5 nicht nur dort, wo zwei aneinandergrenzende Felder des Rumpfes im flach liegenden Zustand der vorverklebten Faltschachtel einen spitzen Winkel bilden (diese Felder sind mit jeweils gleichen Suffixen a bzw. b bezeichnet) Knicklinien 8 auf, sondern sie weisen auch dort geprägte Knicklinien 9 auf, wo bei der vorverklebten, flachliegenden Faltschachtel zwei aneinandergrenzende Hauptflächen des Rumpfes in spitzem oder gestrecktem Winkel aneinanderstoßen. Diese Felder sind in Fig. 2 mit ungleichen Suffixen a und b bezeichnet.As shown schematically in cross-section in FIG. 2, the
Es ist an dieser Stelle anzumerken, daß die Fig. 2 nicht maßstabsgerecht ist, damit die Knicklinien 9 besser gezeigt werden können. So sind beispielsweise die Verklebungen zwischen dem Schlauchabschnitt 5 und den Innenflächen des Rumpfes nur durch einige breite Klebepunkte 10 angedeutet. In Wirklichkeit können die Verklebungen ganzflächig sein, sodaß sich in dem Rumpf die Knicklinien 9 nicht besonders ausprägen. In jedem Falle aber prägen sich die Knicklinien 9 in dem Bereich des Schlauchabschnitts 5 aus, der zwischen den Verschlußklappen 3 und 4 liegt, die mit dem Schlauchabschnitt nicht verklebt sind.It should be noted at this point that FIG. 2 is not to scale so that the
Die in Fig. 1 dargestellte Faltschachtel wird befüllt, nach dem Befüllen werden, soweit nicht bereits geschehen, die Verschlußklappen 3 und 4 von dem von dem Schlauchabschnitt 5 gebildeten Innenbeutel weggeklappt, damit die Verschließ- und Siegelwerkzeuge an den Innenbeutel herangeführt werden können, der Innenbeutel wird dann versiegelt und in die Faltschachtel eingefaltet, woraufhin die Verschlußklappen 4 und 3 umgefaltet und miteinander verklebt werden, sodaß damit die Faltschachtel verschlossen ist.The folding box shown in Fig. 1 is filled, after filling, if not already done, the
Claims (11)
- Pre-glued, flat folding box, consisting of a body portion having open sides and flaps (3,4) connected to said open sides, and a tubular foil section (5) having open ends and being arranged in said body portion and having a cross section which has a size corresponding to the inner cross section of said body portion, wherein said tubular foil section is at least partially glued to the body portion and extends at both ends at least between the flaps (3,4) not glued to said foil section (5) and comprises pre-formed first fold lines (8) which extend in the lines which extend in the two acute-angular corners of the inner cross section of the flat body portion, said fold lines extending continuously up to the ends of the tubular foil section (5), characterized in that the tubular foil section (5) is provided also with pre-formed second fold lines (9) in lines which extend in the two other corners of the inner cross section of the body portion, said second fold lines (9) extending continuously up to the ends of the tubular foil section (5).
- Folding box according to claim 1, characterized in that the second fold lines (9) are formed by embossing.
- Folding box according to claim 2, characterized in that the fold lines (8,9) are formed by heat embossing.
- Folding box according to one of claims 1 to 3, characterized in that the tubular foil section (5) consists of a flexible material.
- Folding box according to one of claims 1 to 4, characterized in that at least the wall sections (2a,1b;1a,2b) of the tubular foil section (5) adjacent the second fold lines (9) in unstressed condition of the tubular foil material each include an angle between one another of approximately 90°.
- Method of manufacturing a folding box according to one of the predecing claims, characterized in that a flat foil web is provided with four continuous fold lines (8,9) at locations predetermined in lateral direction, the two edges of the web are brought to match each other and are connected with one another in sealed condition, a section of the tube so formed is separated laterally and and is disposed in flat condition on an open, flat folding box blank, with the longitudinal edges of the tubular foil section (5) lying on folding lines of the folding box blank, and the folding box blank is folded onto the tubular foil section (5) lying on top of it, is glued to the body portion thereof and is in its turn pre-glued by means of a longitudinal glueing flap.
- Method according to claim 6, characterized in that at least the first fold lines (8) in the foil web (5) are formed by drawing same over folding sheets.
- Method according to claim 6, characterized in that at least the second fold lines (9) in the foil web are (5) formed by roller embossing.
- Method according to claim 8, characterized in that the foil web (5) is routed through the gap between an embossing drum provided with at least one circumferential groove and an embossing roller projecting into the groove.
- Method according to claim 9, characterized in that the embossing roller is heated.
- Method according to claim 9, characterized in that the embossing drum is heated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4104559A DE4104559A1 (en) | 1991-02-14 | 1991-02-14 | FOLDING BOX WITH INTERNAL BAG AND METHOD FOR THEIR PRODUCTION |
| DE4104559 | 1991-02-14 | ||
| PCT/DE1992/000116 WO1992014652A1 (en) | 1991-02-14 | 1992-02-14 | Folding box with inner bag and process for manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0525160A1 EP0525160A1 (en) | 1993-02-03 |
| EP0525160B1 true EP0525160B1 (en) | 1995-05-03 |
Family
ID=6425062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92905491A Expired - Lifetime EP0525160B1 (en) | 1991-02-14 | 1992-02-14 | Folding box with inner bag and process for manufacturing same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5356028A (en) |
| EP (1) | EP0525160B1 (en) |
| AT (1) | ATE122009T1 (en) |
| DE (2) | DE4104559A1 (en) |
| WO (1) | WO1992014652A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239894A1 (en) * | 1992-11-29 | 1994-06-01 | Ucb Transpac Nv | Gastight vacuum pack for coffee, cocoa, nuts, etc - comprises inner and outer envelopes laminated together with adhesive in such a way that delamination occurs when pack is opened |
| ES2154154B1 (en) * | 1998-06-25 | 2001-10-16 | Smurfit Espana | PRODUCT PACKAGING AND PACKAGING METHOD FOR PRESSING THE SAME. |
| US6948618B2 (en) * | 2001-10-03 | 2005-09-27 | Tom Tho-Truong Luu | Protective packaging system |
| US6676011B2 (en) | 2001-10-03 | 2004-01-13 | Tom Luu | Packaging box |
| EP1714888A1 (en) * | 2005-04-20 | 2006-10-25 | Alcan Technology & Management Ltd. | Packaging bag in a container |
| WO2013141355A1 (en) * | 2012-03-22 | 2013-09-26 | 株式会社彫刻プラスト | Composite container, package body, and method for manufacturing composite container |
| WO2019055005A1 (en) * | 2017-09-13 | 2019-03-21 | Xinova, LLC | Rigid and semi-rigid packages |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1705748A (en) * | 1929-03-19 | bridgman | ||
| USRE20789E (en) * | 1938-07-12 | Method of forming containers | ||
| US2095910A (en) * | 1936-07-08 | 1937-10-12 | Edna May Bergstein | Method of forming containers |
| US2493337A (en) * | 1945-10-25 | 1950-01-03 | Sutherland Paper Co | Lined carton or container |
| US2589022A (en) * | 1948-06-21 | 1952-03-11 | Robert Gair Co Inc | Apparatus and method for making plastic folding containers |
| GB733144A (en) * | 1950-11-06 | 1955-07-06 | Ici Ltd | Lined cartons and their manufacture |
| CH328287A (en) * | 1953-09-25 | 1958-02-28 | Unilever Nv | Folding box with lining |
| US2710134A (en) * | 1954-01-18 | 1955-06-07 | Dixie Container Corp | Corrugated paperboard box structure |
| US2799211A (en) * | 1954-10-12 | 1957-07-16 | Jagenberg Werk Akt Ges | Method and apparatus for manufacturing blanks for tubular containers having moisture resistant linings |
| FR1130835A (en) * | 1955-09-06 | 1957-02-12 | Cenpa | Container, especially for liquid and pasty products |
| US2950036A (en) * | 1957-07-16 | 1960-08-23 | Pneumatic Scale Corp | Lined carton and method of making the same |
| US3038889A (en) * | 1960-06-30 | 1962-06-12 | Goodyear Tire & Rubber | Copolymers of vinyl alkyl ethers and alkoxy-1, 3-butadienes |
| US3182883A (en) * | 1962-08-27 | 1965-05-11 | Pneumatic Scale Corp | Lined carton |
| GB1023034A (en) * | 1962-10-16 | 1966-03-16 | Reynolds Metals Co | Method of making lined containers |
| US3426955A (en) * | 1966-09-16 | 1969-02-11 | Hoerner Waldorf Corp | Combination bag and box |
| US3459357A (en) * | 1967-01-05 | 1969-08-05 | Union Camp Corp | Bag-in-a-box |
| US3550833A (en) * | 1968-10-28 | 1970-12-29 | Union Camp Corp | Bag-in-a-box with spout opening |
| FR2067809A5 (en) * | 1969-11-18 | 1971-08-20 | Carre Marcel | Manufacture of thermally insulating - boxes |
| US3878771A (en) * | 1972-06-26 | 1975-04-22 | James A Malcolm | Manufacture of paperboard cartons with liquid-proof liners |
| US3907193A (en) * | 1974-04-08 | 1975-09-23 | Autoplex Corp | Plastic folding containers and process and apparatus for making same |
| SE432918B (en) * | 1979-10-18 | 1984-04-30 | Tetra Pak Int | BIG LINE PACKAGED LAMINATE |
| FR2504094A1 (en) * | 1981-04-15 | 1982-10-22 | Bernhardt Cie | Cardboard case which folds flat - has foldable inside pocket and top and bottom closing flaps |
| JPS5873756U (en) * | 1981-11-11 | 1983-05-18 | 北海製罐株式会社 | composite packaging container |
| DE3318310A1 (en) * | 1983-05-19 | 1984-11-22 | CP Schmidt Verpackungs-Werk GmbH & Co KG, 6750 Kaiserslautern | FOLDING BOX WITH INTERNAL LINING AND METHOD AND DEVICE FOR PRODUCING IT |
| DE9014035U1 (en) * | 1990-10-09 | 1991-01-17 | Hagner, Hans, 7295 Dornstetten, De |
-
1991
- 1991-02-14 DE DE4104559A patent/DE4104559A1/en not_active Withdrawn
-
1992
- 1992-02-14 WO PCT/DE1992/000116 patent/WO1992014652A1/en active IP Right Grant
- 1992-02-14 US US07/937,859 patent/US5356028A/en not_active Expired - Fee Related
- 1992-02-14 EP EP92905491A patent/EP0525160B1/en not_active Expired - Lifetime
- 1992-02-14 AT AT92905491T patent/ATE122009T1/en not_active IP Right Cessation
- 1992-02-14 DE DE59202068T patent/DE59202068D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE4104559A1 (en) | 1992-08-20 |
| WO1992014652A1 (en) | 1992-09-03 |
| ATE122009T1 (en) | 1995-05-15 |
| DE59202068D1 (en) | 1995-06-08 |
| US5356028A (en) | 1994-10-18 |
| EP0525160A1 (en) | 1993-02-03 |
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