EP1743847B2 - Package made of a sheet material and method for making of said package - Google Patents
Package made of a sheet material and method for making of said package Download PDFInfo
- Publication number
- EP1743847B2 EP1743847B2 EP06014352.6A EP06014352A EP1743847B2 EP 1743847 B2 EP1743847 B2 EP 1743847B2 EP 06014352 A EP06014352 A EP 06014352A EP 1743847 B2 EP1743847 B2 EP 1743847B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- packaging
- package
- fixed welding
- sheet material
- weakening
- 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.)
- Not-in-force
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Classifications
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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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/14—Non-removable lids or covers
- B65D43/16—Non-removable lids or covers hinged for upward or downward movement
- B65D43/163—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately
- B65D43/169—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately the lid, the hinge and the element connecting them to the container being made of one piece
Definitions
- the present invention relates to a method of producing a package made of sheet material.
- Such packaging has the requirement to provide a reliable and sealed package which ensures long shelf life while providing a pleasing appearance for sale and ease of use for the consumer.
- the packages are evacuated before sealing in the known methods and filled with a replacement gas such as CO 2 .
- Such packages are often used for packaging foods that are already pre-portioned, such as e.g. sliced cheese or sliced sausage. Especially in times of smaller households, the content of such packaging is often not fully consumed at a given time, but only a part of the content is removed and the rest will be taken at a later date. This leads to the need to produce resealable packages.
- a method for producing a package in which a packaging top part and a bottom packaging part are produced from a single film web. After filling the lower packaging part, the upper packaging part is folded over the upper packaging part, wherein between the two parts a kink is generated, which serves as a kind of hinge. Subsequently, the upper part of the packaging and the lower part of the packaging are sealed together. Since the packaging upper part and the lower packaging part are produced from the same film web, it is not possible with the packaging to use different materials for these two parts. However, it is often desired, for example, a transparent packaging shell and a colored packaging base.
- the packaging base it is often necessary, for example, to produce the packaging base from a thick film, whereas for the packaging top, a thinner film would be sufficient. Since both are produced from the same film web, the more expensive thick film is therefore also used for the packaging upper part, which is disadvantageous for the production costs.
- a method for producing a packaging in which the packaging upper part and the lower packaging part are also manufactured from the same web. In order to achieve a hermetic seal, a second film web is introduced and sealed between the lower packaging part and the upper packaging part. This method also has the disadvantage that the same material is necessarily used for the packaging upper part and the lower packaging part.
- a reclosable package having a body member of semi-rigid preformed plastic having a first planar edge portion and a center portion shaped to provide a packaging chamber.
- a base member has a corresponding second flat edge portion and a center member, so that a closure for the packaging chamber is provided.
- the body member and the base member are fixedly connected along a pair of adjacent sides of the first and second edge portions.
- a hinge is disposed on the pair of adjacent sides.
- the DE 27 18 234 A1 discloses a packaging container, which consists of a thin-walled, the plastic material to be packaged receiving base with open, surrounded by a punching and peripheral edge top and on or in this open top matching, in the upper edge region hinged or attached to the lower lid.
- the lid is designed as a hinged lid.
- packaging is known in which the packaging upper part and the packaging lower part are each made of separate film webs and these are then joined together by sealing. With these packages, different film materials can be used for the packaging top part and the bottom packaging part. In the known packings, a sealing takes place between the packaging upper part and the packaging lower part along a peripheral contour. For these packages, either on initial opening, a complete separation of upper and lower packaging parts or the seal is released along multiple sides and remains on one side of the packaging.
- the manufactured packaging has the advantage that a hermetic seal is made possible prior to the first opening and, in addition, that different materials can be used for the packaging top part and the packaging bottom part. Furthermore, the package can be repeatedly opened and closed reliably and it is ensured that the package remains in an open state, if desired.
- the higher productivity packaging can be made with a thermoforming packaging machine, rather than packaging whose packaging top and packaging bottom are made from a single web of sheet material.
- the inventive method enables the production of the advantageous packaging and at the same time a productive operation of the packaging machine.
- the packaging 1 consists of an upper packaging part 2 and a lower packaging part 3.
- the packaging upper part 2 is formed by deep drawing of a first sheet-like material in the form of a thermoplastically deformable plastic film.
- the lower packaging part 3 is formed by deep drawing from a second sheet-like material in the form of a second thermoplastically deformable plastic film.
- the packaging upper part 2 has a flat peripheral edge 20 which delimits a concavity or depression 21 which is formed by the material of the packaging upper part 2 being formed by deep drawing to one side away from the peripheral edge 20. Furthermore, a bulge 22 is formed on one side within the peripheral edge 20, which is formed in the opposite direction from the peripheral edge 20 away. The bulge 22 has a side surface 23 which extends substantially in a vertical direction away from a side of the peripheral edge 20. On the side surface 23, a projection 24 is formed.
- the trough 21 of the upper packaging part 2 has a further shape, which is substantially adapted to the shape of a product to be packaged. It may also have grooves or projections which increase the rigidity of the upper packaging part 2.
- the packaging base 3 also has a flat peripheral edge 30 delimiting a concavity or shell 31 formed by deforming the material of the packaging base 3 by drawing it to one side away from the peripheral edge 30 so that the packaging base 3 is deformed
- Substantially has the shape of a shell.
- the bottom 32 of the shell 31 is provided with grooves 33 which increase the rigidity of the packaging base 3 and allow some gas circulation to the product from below. It can also be provided a more extensive shape, which is adapted to the shape of the product to be packaged.
- a side wall 34 of the shell 31, which extends substantially perpendicular to the peripheral edge 30, is provided with a concavity 35 for cooperation with the projection 24, as best in the FIGS. 5 and 6 you can see.
- the upper packaging part 2 and the lower packaging part 3 are brought together so that the peripheral edge 20 of the upper packaging part 2 and the peripheral edge 30 of the lower packaging part 3 lie flat on each other when the packaging is closed, as in FIGS Fig. 1 . 5 and 6 is shown.
- the projection 24 of the upper packaging part 2 engages with closed package 1 in the concavity 35 of the packaging part 3 a.
- a portion 20 a of the peripheral edge 20 of the Packing upper part 2 and a portion 30 a of the peripheral edge 30 of the packaging base 3 firmly welded together, as in the enlarged side view in Fig. 4 is shown for an opened pack.
- Firmly welded means that the compound produced is not soluble during normal use of the packaging.
- a weakening 30b of the material is provided in the peripheral edge 30 of the packaging base 3 on the side of the fixed welding.
- the weakening 30b of the material is given by a reduction in the cross-sectional area of the material in the direction of the film thickness. This weakening means that the material is weakened compared to the other sides of the peripheral edge. Bending or buckling of the material is facilitated in the area of weakening against the other areas of the material.
- the weakening of the material is formed in the illustrated embodiment by a notch 30b in the weld of the fixed seal between the portions 20a and 30a on the side of the packaging base 3.
- the notch is formed by melting a recess in the bottom of the portion 20a in the tight welding of the packaging top 2 and packaging bottom 3 between the portions 20a and 30a.
- the notch may also be formed on the side of the upper packaging part 2.
- the upper packaging part 2 and the lower packaging part 3 are first sealed together with filled product along the peripheral edges 20, 30 and non-detachably welded in the region of the sections 20a and 30a, so that the interior of the package is hermetically sealed.
- a protective gas such as CO 2 or the like, be replaced to prevent spoilage of the filled product.
- the seal between the upper packaging part 2 and the lower packaging part 3 is released by pulling them apart.
- the corners 1 a and 1 b of the package opposite the side of the fixed seal are specially shaped as in FIGS Fig. 1, 2 and 3 is shown.
- the lower packaging part 3 in the corners 1a and 1b on an offset 3a and 3b, which causes the packaging base 3 and the packaging shell 2 with closed packaging in the corners 1a and 1b are not completely on each other and thus of these starting can be easily pulled apart.
- Such an offset may alternatively be formed on the packaging upper part 2.
- the portions 20a and 30a do not separate from each other.
- Fig. 4 is represented by the weakening of the material on the side of the fixed welding a kink fold is formed, which allows a folding of the package like a hinge.
- the weakening shown in the region of the packaging base 3 causes a kinking in its material.
- the packaging When reclosing the packaging, the packaging folds back around the point of weakening. On the opposite side of the package, a slight elastic deformation of the side surface 23 with the projection 24 and the side wall 34 with the concavity 35 is made possible.
- the packaging can be closed so that the projection 24 engages in the concavity 35. By this latching mechanism, the package is securely held in the reclosed position.
- packaging upper part 2 and the lower packaging part 3 are formed from mutually different sheet-like materials, e.g. different colored materials can be chosen or part of the packaging can be made transparent. Furthermore, different thicknesses of materials can be used, and thus the package can be realized at the same time cost and adapted to individual needs.
- the package may be used as a portion-serving food service unit, such as e.g. cheese or sausage products in the form of a slice, of piece goods in solid form or else of goods in spreadable form, etc.
- a portion-serving food service unit such as e.g. cheese or sausage products in the form of a slice, of piece goods in solid form or else of goods in spreadable form, etc.
- the weakening may alternatively be produced by a perforation, a squeezing of the material or similar processing, as described above. It is important, however, that the weakening is designed such that unfolding the packaging is facilitated.
- the latching mechanism which in the described embodiment by the projection 24th and the concavity 35 is formed, which form a tail can be formed differently.
- a protrusion can be formed on the packaging base 3 and a matching concavity on the packaging upper part 2.
- other locking mechanisms are possible, but are advantageous shapes that can be produced in a conventional deep-drawing process.
- the locking mechanism must allow a stable reclosure.
- the latching mechanism is located on the opposite side of the fixed welding, resulting in a particularly stable closure, however, it is also possible to arrange a latching mechanism laterally.
- the package of the described embodiment has a substantially rectangular cross-section, it may also have other shapes depending on the requirements, e.g. triangular, polygonal, round, oval, etc.
- Fig. 7 is shown schematically, in the packaging machine in a forming station 11 by means of deep-drawn packaging upper parts 2 of a first web-shaped material 6 in the form of a thermoplastically deformable plastic film is produced, which is subtracted from a film roll 9.
- a previously arranged forming station 10 are formed by deep drawing packaging lower parts 3 of a second web-shaped material 7 in the form of a thermoplastically deformable plastic film, which is also deducted from a film roll 8.
- the packaging upper parts 2 and the lower packaging parts 3 are brought together and in a sealing station 12, the re-releasable seal along the peripheral contour of the packaging is generated.
- a filling station is arranged, which in the representation of Fig. 7 for the sake of simplicity is not shown.
- the packaging is filled with products and eventually the packaging is evacuated and the atmosphere in it is replaced by inert gas.
- a welding station 13 is arranged, in which the firm welding of the packaging upper part 2 and the packaging lower part 3 in the sections 20a and 30a is produced and the weakening of the material for producing the buckling fold is carried out.
- a transverse cutting of the packages is carried out in a cross-cutting station 14 and in a following longitudinal cutting station 15, the produced packages 1 are completely separated out of the sheet-like material and deposited on a transport device 16 in the form of a conveyor belt.
- the resealable sealing takes place along the peripheral contour in the sealing station 12 and at the same time the firm welding and creating the weakening as a melted groove at a higher temperature and a higher pressure in the welding station 13.
- These two steps can alternatively also in a Station can be performed in combination.
- the solid welding does not have to be done by introducing thermal energy, but can e.g. also by ultrasonic welding or the like.
- the cutting of the package can also be done differently, e.g. in the form of a complete punching in one step.
- the weakening may also be produced by creating a perforation or pinch, as described with respect to the packaging.
- the sealing station 12 or the welding station 13 is formed accordingly or it is provided a corresponding separate station.
- the implementation of the method according to the invention is made possible and a packaging can be produced which has the features and advantages of the described packaging.
- the individual stations of the packaging machine are designed such that all the features of the packaging described above can be generated.
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Abstract
Description
Die vorliegende Erfindung bezieht sich auf eine Verfahren zur Herstellung einer Verpackung, die aus Bahnmaterial hergestellt wird.The present invention relates to a method of producing a package made of sheet material.
Bei dem Verpacken von verderblichen GĂĽtern wie z.B. Lebensmitteln ist es bekannt, diese in Verpackungen einzupacken, die in einer Verpackungsmaschine aus Folienbahnen durch Tiefziehen hergestellt werden.In the packaging of perishable goods such as e.g. Foods it is known to pack them in packaging, which are produced in a packaging machine from film webs by deep drawing.
Bei solchen Verpackungen besteht die Anforderung, eine zuverlässige und dichte Verpackung bereitzustellen, die eine lange Haltbarkeit des Inhalts gewährleistet und dabei ein ansprechendes Aussehen für den Verkauf und eine einfache Handhabung für den Verbraucher bietet. Um die Haltbarkeit der verpackten Güter zu erhöhen, werden die Verpackungen vor dem Versiegeln bei den bekannten Verfahren evakuiert und mit einem Austauschgas wie z.B. CO2 befüllt.Such packaging has the requirement to provide a reliable and sealed package which ensures long shelf life while providing a pleasing appearance for sale and ease of use for the consumer. In order to increase the shelf life of the packaged goods, the packages are evacuated before sealing in the known methods and filled with a replacement gas such as CO 2 .
Solche Verpackungen werden oftmals zum Verpacken von Lebensmitteln verwendet, die bereits vorportioniert sind, wie z.B. in Scheiben geschnittener Käse oder in Scheiben geschnittene Wurst. Besonders in Zeiten kleiner werdender Haushalte wird der Inhalt solcher Verpackungen oft nicht zu einem bestimmten Zeitpunkt vollständig konsumiert, sondern es wird nur ein Teil des Inhalts entnommen und der Rest soll zu einem späteren Zeitpunkt entnommen werden. Dies führt zu dem Bedürfnis, wiederverschließbare Verpackungen herzustellen.Such packages are often used for packaging foods that are already pre-portioned, such as e.g. sliced cheese or sliced sausage. Especially in times of smaller households, the content of such packaging is often not fully consumed at a given time, but only a part of the content is removed and the rest will be taken at a later date. This leads to the need to produce resealable packages.
Aus der
Aus der
In der
Die
Ferner sind Verpackungen bekannt, bei denen das Verpackungsoberteil und das Verpackungsunterteil jeweils aus separaten Folienbahnen hergestellt sind und diese anschließend durch Versiegeln miteinander verbunden werden. Bei diesen Packungen können unterschiedliche Folienmaterialien für das Verpackungsoberteil und das Verpackungsunterteil verwendet werden. Bei den bekannten Packungen erfolgt eine Versiegelung zwischen dem Verpackungsoberteil und dem Verpackungsunterteil entlang einer umlaufenden Kontur. Bei diesen Verpackungen erfolgt entweder beim erstmaligen Öffnen eine vollständige Trennung von Verpackungsoberteil und Verpackungsunterteil oder die Versiegelung wird entlang mehreren Seiten gelöst und verbleibt auf einer Seite der Verpackung. In dem Fall, dass die Versiegelung auf einer Seite der Verpackung verbleibt, ergibt sich das Problem, dass einerseits das Verpackungsoberteil gegenüber dem Verpackungsunterteil nicht oft auf- und wieder zugeklappt werden kann, ohne dass sich die Versiegelung löst, und andererseits beim Öffnen eine Spannung auf der weiterhin versiegelten Seite der Verpackung auftritt, die verhindert, dass das Verpackungsoberteil gegenüber dem Verpackungsunterteil in einer aufgeklappten Stellung verbleibt. D.h. die Verpackung klappt immer unerwünscht von selbst zu. Es ist also kein zuverlässiges wiederholtes Öffnen und Schließen der Verpackung möglich.Furthermore, packaging is known in which the packaging upper part and the packaging lower part are each made of separate film webs and these are then joined together by sealing. With these packages, different film materials can be used for the packaging top part and the bottom packaging part. In the known packings, a sealing takes place between the packaging upper part and the packaging lower part along a peripheral contour. For these packages, either on initial opening, a complete separation of upper and lower packaging parts or the seal is released along multiple sides and remains on one side of the packaging. In the event that the seal remains on one side of the package, there is the problem that on the one hand, the packaging upper part can not be opened and closed again with respect to the lower packaging part without the seal becoming detached and, on the other hand, tension is released the still sealed side of the package occurs, which prevents the packaging top from remaining opposite the bottom of the package in an unfolded position. That The packaging always works undesirably by itself. So it is not possible reliable repeated opening and closing of the package.
Es ist Aufgabe der vorliegenden Erfindung, ein Verfahren zur Herstellung einer Verpackung bereitzustellen, das es ermögliche, dass das Verpackungsoberteil und das Verpackungsunterteil unterschiedliche Eigenschaften aufweisen und dass ein zuverlässiges mehrmaliges Öffnen und Wiederverschließen der Verpackung ermöglicht ist, ohne dass sich die Verpackung in ihre Einzelteile auftrennt. Ferner soll die Verpackung zuverlässig in geöffneter Stellung verbleiben.It is an object of the present invention to provide a method of manufacturing a package that allows the package top and package bottom to have different properties and to reliably open and re-close the package multiple times without breaking the package into its component parts , Furthermore, the Packing reliably remain in the open position.
Die Aufgabe wird durch ein Verfahren nach Anspruch 1 gelöst. Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.The object is achieved by a method according to
Die hergestellte Verpackung weist den Vorteil auf, dass eine hermetische Versiegelung vor dem ersten Öffnen ermöglicht ist und zudem unterschiedliche Materialien für das Verpackungsoberteil und das Verpackungsunterteil verwendet werden können. Ferner kann die Verpackung wiederholt zuverlässig geöffnet und geschlossen werden und es ist gewährleistet, dass die Verpackung in einem geöffneten Zustand verbleibt, wenn dies gewünscht ist.The manufactured packaging has the advantage that a hermetic seal is made possible prior to the first opening and, in addition, that different materials can be used for the packaging top part and the packaging bottom part. Furthermore, the package can be repeatedly opened and closed reliably and it is ensured that the package remains in an open state, if desired.
Ferner kann die Verpackung mit höherer Produktivität mit einer Tiefziehverpackungsmaschine hergestellt werden, als Verpackungen, deren Verpackungsoberteil und Verpackungsunterteil aus einer einzigen Bahn eines bahnförmigen Materials hergestellt werden.Further, the higher productivity packaging can be made with a thermoforming packaging machine, rather than packaging whose packaging top and packaging bottom are made from a single web of sheet material.
Das erfindungsgemäße Verfahren ermöglicht das Erzeugen der vorteilhaften Verpackung und gleichzeitig einen produktiven Betrieb der Verpackungsmaschine.The inventive method enables the production of the advantageous packaging and at the same time a productive operation of the packaging machine.
Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung von Ausführungsbeispielen anhand der beigefügten Zeichnungen. Von den Figuren zeigen:
- Fig. 1
- eine perspektivische Ansicht einer geschlossenen Verpackung;
- Fig. 2
- eine perspektivische Ansicht einer geöffneten Verpackung mit einem darin befindlichen Produkt;
- Fig. 3
- eine perspektivische Ansicht einer leeren geöffneten Verpackung;
- Fig. 4
- eine vergrößerte Seitenansicht eines Teils der geöffneten Verpackung zur Erläuterung des Klappmechanismus;
- Fig. 5
- eine Seitenansicht der geschlossenen Verpackung;
- Fig. 6
- eine Schnittansicht der geschlossenen Verpackung mit einem darin befindlichen Produkt; und
- Fig. 7
- eine schematische Seitenansicht einer Verpackungsmaschine.
- Fig. 1
- a perspective view of a closed package;
- Fig. 2
- a perspective view of an opened package with a product therein;
- Fig. 3
- a perspective view of an empty opened packaging;
- Fig. 4
- an enlarged side view of a portion of the opened packaging to explain the folding mechanism;
- Fig. 5
- a side view of the closed packaging;
- Fig. 6
- a sectional view of the closed package with a product therein; and
- Fig. 7
- a schematic side view of a packaging machine.
Im Folgenden wird mit Bezug auf die
Wie am besten in
Das Verpackungsoberteil 2 weist einen ebenen umlaufenden Rand 20 auf, der eine Konkavität oder Mulde 21 umgrenzt, die dadurch gebildet ist, dass das Material des Verpackungsoberteils 2 durch Tiefziehen zu einer Seite von dem umlaufenden Rand 20 weg geformt ist. Weiterhin ist auf einer Seite innerhalb des umlaufenden Randes 20 eine Auswölbung 22 ausgebildet, die in entgegengesetzter Richtung von dem umlaufenden Rand 20 weg geformt ist. Die Auswölbung 22 weist eine Seitenfläche 23 auf, die sich im Wesentlichen in senkrechter Richtung von einer Seite des umlaufenden Randes 20 weg erstreckt. Auf der Seitenfläche 23 ist ein Vorsprung 24 ausgebildet. Die Mulde 21 des Verpackungsoberteils 2 weist eine weitere Formgebung auf, die im Wesentlichen an die Form eines zu verpackenden Produktes angepasst ist. Sie kann auch Rillen oder Vorsprünge aufweisen, die die Steifigkeit des Verpackungsoberteils 2 erhöhen.The packaging upper part 2 has a flat
Das Verpackungsunterteil 3 weist ebenfalls einen ebenen umlaufenden Rand 30 auf, der eine Konkavität oder Schale 31 umgrenzt, die dadurch gebildet ist, dass das Material des Verpackungsunterteils 3 durch Tiefziehen zu einer Seite von dem umlaufenden Rand 30 weg verformt ist, sodass das Verpackungsunterteil 3 im Wesentlichen die Form einer Schale aufweist. Der Boden 32 der Schale 31 ist mit Rillen 33 versehen, die die Steifigkeit des Verpackungsunterteils 3 erhöhen und eine gewisse Gaszirkulation an das Produkt hin von unten ermöglichen. Es kann auch eine weitergehende Formgebung vorgesehen werden, die an die Form des zu verpackenden Produktes angepasst ist. Eine Seitenwand 34 der Schale 31, die sich im Wesentlichen senkrecht zu dem umlaufenden Rand 30 erstreckt, ist mit einer Einwölbung 35 zum Zusammenwirken mit dem Vorsprung 24 versehen, wie am Besten in den
Das Verpackungsoberteil 2 und das Verpackungsunterteil 3 sind so zusammengefĂĽhrt, dass der umlaufende Rand 20 des Verpackungsoberteils 2 und der umlaufende Rand 30 des Verpackungsunterteils 3 flach aufeinander liegen, wenn die Verpackung geschlossen ist, wie in den
Auf der der Einwölbung 35 und dem Vorsprung 24 gegenüberliegenden Seite der Verpackung sind ein Abschnitt 20a des umlaufenden Randes 20 des Verpackungsoberteils 2 und ein Abschnitt 30a des umlaufenden Randes 30 des Verpackungsunterteils 3 fest miteinander verschweißt, wie in der vergrößerten Seitenansicht in
Die Schwächung des Materials ist in der dargestellten Ausführungsform durch eine Kerbe bzw. Rille 30b in der Schweißnaht der festen Verschweißung zwischen den Abschnitten 20a und 30a auf der Seite des Verpackungsunterteils 3 gebildet. Bei der dargestellten Ausführungsform ist die Kerbe durch ein Einschmelzen einer Vertiefung in die Unterseite des Abschnitts 20a bei dem festen Verschweißen von Verpackungsoberteil 2 und Verpackungsunterteil 3 zwischen den Abschnitten 20a und 30a gebildet. Alternativ kann die Kerbe auch auf der Seite des Verpackungsoberteils 2 gebildet sein.The weakening of the material is formed in the illustrated embodiment by a notch 30b in the weld of the fixed seal between the
Im Betrieb sind das Verpackungsoberteil 2 und das Verpackungsunterteil 3 zunächst bei eingefülltem Produkt entlang der umlaufenden Ränder 20, 30 miteinander versiegelt und in dem Bereich der Abschnitte 20a und 30a unlösbar verschweißt, sodass das Innere der Verpackung hermetisch verschlossen ist. Dabei kann die Atmosphäre im Inneren der Verpackung durch ein Schutzgas, wie z.B. CO2 oder ähnliches, ersetzt sein, um ein Verderben des eingefüllten Produktes zu verhindern.In operation, the upper packaging part 2 and the
Beim erstmaligen Öffnen der Verpackung wird die Versiegelung zwischen Verpackungsoberteil 2 und Verpackungsunterteil 3 durch Auseinanderziehen von diesen gelöst. Um diesen Schritt zu erleichtern, sind bei der in den Figuren dargestellten Ausführungsform die der Seite der festen Verschweißung gegenüberliegenden Ecken 1a und 1b der Verpackung speziell geformt, wie in den
Bei dem Wiederverschließen der Verpackung klappt die Verpackung wieder um die Stelle der Schwächung zu. Auf der gegenüberliegenden Seite der Verpackung ist eine leichte elastische Verformung der Seitenfläche 23 mit dem Vorsprung 24 und der Seitenwand 34 mit der Einwölbung 35 ermöglicht. Die Verpackung kann so geschlossen werden, dass der Vorsprung 24 in die Einwölbung 35 einrastet. Durch diesen Einrastmechanismus wird die Verpackung sicher in der wiederverschlossenen Stellung gehalten.When reclosing the packaging, the packaging folds back around the point of weakening. On the opposite side of the package, a slight elastic deformation of the
Dadurch, dass auf einer Seite des umlaufenden Randes die Schwächung des Materials vorliegt, tritt in dem Material beim Öffnen nur eine geringe Spannung auf. Aus diesem Grund verbleibt die Verpackung in der geöffneten Stellung und klappt nicht von alleine ungewollt zu.Characterized in that on one side of the peripheral edge, the weakening of the material is present in the material when opening only a small voltage. For this reason, the packaging remains in the open position and does not accidentally close by itself.
Da das Verpackungsoberteil 2 und das Verpackungsunterteil 3 aus voneinander verschiedenen bahnförmigen Materialien gebildet sind, können z.B. unterschiedlich farbige Materialien gewählt werden oder ein Teil der Verpackung kann durchsichtig gestaltet werden. Ferner können auch unterschiedlich dicke Materialien verwendet werden und somit kann die Verpackung gleichzeitig kostengünstig realisiert werden und an die individuellen Bedürfnisse angepasst werden.Since the packaging upper part 2 and the
Das feste Verbinden und der Aufklappmechanismus ermöglichen ein häufiges Öffnen und Wiederverschließen der Verpackung. Somit kann die Verpackung als Serviereinheit für Nahrungsmittel zur portionsweisen Entnahme, wie z.B. von Käse oder Wurstwaren in Scheibenform, von Stückware in fester Form oder auch von Ware in streichfähiger Form usw., verwendet werden. Durch das Verformen auch des Verpackungsoberteils 2 können in der Verpackung Produkte aufgenommen werden, die aus dem Verpackungsunterteil 3 über den umlaufenden Rand 30 nach oben hervorstehen.The rigid connection and the pop-up mechanism allow for frequent opening and reclosing of the package. Thus, the package may be used as a portion-serving food service unit, such as e.g. cheese or sausage products in the form of a slice, of piece goods in solid form or else of goods in spreadable form, etc. By deforming also the upper packaging part 2, products can be received in the packaging which protrude from the
Weitere AusfĂĽhrungsformen und AbwandlungenOther embodiments and modifications
Die Schwächung kann alternativ zu dem oben beschriebenen Einschmelzen auch durch eine Perforation, eine Quetschung des Materials oder ähnliche Bearbeitung erzeugt sein. Wichtig ist es jedoch, dass die Schwächung derart ausgebildet ist, dass ein Aufklappen der Verpackung dadurch erleichtert ist.The weakening may alternatively be produced by a perforation, a squeezing of the material or similar processing, as described above. It is important, however, that the weakening is designed such that unfolding the packaging is facilitated.
Auch der Einrastmechanismus, der bei der beschriebenen Ausführungsform durch den Vorsprung 24 und die Einwölbung 35 gebildet ist, die einen Hinterzug bilden, kann anders gebildet werden. Z.B. kann ein Vorsprung an dem Verpackungsunterteil 3 ausgebildet werden und eine dazu passende Einwölbung an dem Verpackungsoberteil 2. Auch sind andere Rastmechanismen möglich, von Vorteil sind aber Formgebungen, die sich in einem üblichen Tiefziehverfahren erzeugen lassen. Der Rastmechanismus muss einen stabilen Wiederverschluss erlauben. In der beschriebenen Ausführungsform befindet sich der Rastmechanismus auf der der festen Verschweißung gegenüberliegenden Seite, was zu einem besonders stabilen Verschluss führt, jedoch ist es auch möglich, einen Einrastmechanismus seitlich anzuordnen.Also, the latching mechanism, which in the described embodiment by the projection 24th and the
Es kann auch eine Klebeschicht im Bereich der umlaufenden Ränder 20 und 30 zwischen Verpackungsoberteil 2 und Verpackungsunterteil 3 eingefügt sein, die eine dichtes Wiederverschließen der Verpackung nach dem Öffnen ermöglicht.There may also be an adhesive layer in the region of the
Wichtig für den Wiederverschluss ist, dass eine Zuhaltung vorgesehen ist, die die wiederverschlossene Verpackung geschlossen hält und ein ungewolltes Aufklappen der Verpackung verhindert.It is important for the reclosure that a tumbler is provided, which keeps the resealed packaging closed and prevents unwanted unfolding of the packaging.
Obwohl die Verpackung der beschriebenen AusfĂĽhrungsform einen im Wesentlichen rechteckigen Querschnitt aufweist, kann sie je nach den Erfordernissen auch andere Formgebungen aufweisen, z.B. dreieckig, mehreckig, rund, oval etc. sein.Although the package of the described embodiment has a substantially rectangular cross-section, it may also have other shapes depending on the requirements, e.g. triangular, polygonal, round, oval, etc.
Anhand der
Wie in
Der Siegelstation nachfolgend ist eine Schweißstation 13 angeordnet, in der die feste Verschweißung von Verpackungsoberteil 2 und Verpackungsunterteil 3 in den Abschnitten 20a und 30a erzeugt wird und die Schwächung des Materials zum Erzeugen des Knickfalzes durchgeführt wird. Anschließend wird in einer Querschneidestation 14 eine Querschneidung der Verpackungen durchgeführt und in einer folgenden Längsschneidestation 15 werden die erzeugten Verpackungen 1 vollständig aus dem bahnförmigen Material herausgetrennt und auf einer Transportvorrichtung 16 in Form eines Transportbandes abgesetzt.Following the sealing station, a welding station 13 is arranged, in which the firm welding of the packaging upper part 2 and the packaging
In der dargestellten Ausführungsform erfolgt das wieder lösbare Versiegeln entlang der umlaufenden Kontur in der Siegelstation 12 und gleichzeitig das feste Verschweißen und Erzeugen der Schwächung als eingeschmolzene Rille bei einer höheren Temperatur und einem höheren Druck in der Schweißstation 13. Diese beiden Schritte können alternativ auch in einer Station kombiniert durchgeführt werden. Das feste Verschweißen muss dabei nicht durch Einbringung von thermischer Energie erfolgen, sondern kann z.B. auch durch Ultraschallschweißung oder ähnliches erfolgen.In the illustrated embodiment, the resealable sealing takes place along the peripheral contour in the sealing station 12 and at the same time the firm welding and creating the weakening as a melted groove at a higher temperature and a higher pressure in the welding station 13. These two steps can alternatively also in a Station can be performed in combination. The solid welding does not have to be done by introducing thermal energy, but can e.g. also by ultrasonic welding or the like.
Ferner kann die Schneidung der Verpackung auch anders erfolgen, z.B. in Form einer vollständigen Stanzung in einem Schritt.Furthermore, the cutting of the package can also be done differently, e.g. in the form of a complete punching in one step.
Ebenso kann die Schwächung auch durch Erzeugen einer Perforation oder Quetschung, wie bezüglich der Verpackung beschrieben ist, erzeugt werden. Dazu ist dann die Siegelstation 12 oder die Schweißstation 13 entsprechend ausgebildet oder es ist eine entsprechende separate Station vorgesehen.Likewise, the weakening may also be produced by creating a perforation or pinch, as described with respect to the packaging. For this purpose, then the sealing station 12 or the welding station 13 is formed accordingly or it is provided a corresponding separate station.
Mit der beschriebenen Verpackungsmaschine ist die Durchführung des erfindungsgemäßen Verfahrens ermöglicht und es kann eine Verpackung erzeugt werden, die die Merkmale und Vorteile der beschriebenen Verpackung aufweist. Die einzelnen Stationen der Verpackungsmaschine sind dabei derart ausgebildet, dass sämtliche zuvor beschriebene Merkmale der Verpackung erzeugt werden können.With the described packaging machine, the implementation of the method according to the invention is made possible and a packaging can be produced which has the features and advantages of the described packaging. The individual stations of the packaging machine are designed such that all the features of the packaging described above can be generated.
Claims (6)
- Method for producing a packaging, comprising the steps:- forming a packaging upper part (2) by making a concavity (21) in a first sheet material (6) by deep-drawing, and forming a packaging lower part (3) by making a concavity (31) in a second sheet material (7) by deep-drawing;- releasable sealing of the packaging upper part (2) and the packaging lower part (3) along a peripheral contour (20, 30);- producing a fixed welding of packaging upper part (2) and packaging lower part (3) on one side (20a, 30a); and- producing a weakening (30b) of the first or second sheet material (6, 7) on the side comprising the fixed welding in the weld seam of the fixed welding, the production of the weakening (30b) taking place simultaneously with the production of the fixed welding.
- Method according to claim 1, wherein the releasable sealing and the production of a fixed welding take place one after the other.
- Method according to any of the preceding claims, wherein the releasable sealing and the production of a fixed welding take place in separate devices (12, 13).
- Method according to any of the preceding claims, wherein the packaging is separated out from the sheet material only after completion of the other steps.
- Method according to any of the preceding claims, wherein the atmosphere in the packaging is replaced by a protective gas before the releasable sealing.
- Method according to any of the preceding claims, wherein one of the corners (1 a, 1 b) of the packaging located opposite the fixed welding is configured such that a simple separation of packaging upper part (2) and packaging lower part (3) can take place at said corner.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005033273A DE102005033273A1 (en) | 2005-07-15 | 2005-07-15 | Packaging of web material and process for its production |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1743847A1 EP1743847A1 (en) | 2007-01-17 |
EP1743847B1 EP1743847B1 (en) | 2010-09-29 |
EP1743847B2 true EP1743847B2 (en) | 2014-10-22 |
Family
ID=36951559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06014352.6A Not-in-force EP1743847B2 (en) | 2005-07-15 | 2006-07-11 | Package made of a sheet material and method for making of said package |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1743847B2 (en) |
AT (1) | ATE482892T1 (en) |
DE (2) | DE102005033273A1 (en) |
ES (1) | ES2348648T5 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2637316B1 (en) †| 1976-08-19 | 1977-06-16 | Gni Pk I P Ugolnyj I Petschorn | Parting welded thermoplastic ampoules from continuously mfd. web - by impressing welding blades into film under tension |
EP0427512A1 (en) †| 1989-11-09 | 1991-05-15 | Oscar Mayer Foods Corporation | Reclosable food packaging having snap closure |
DE10029797A1 (en) †| 2000-06-16 | 2001-12-20 | Eul & Guenther Gmbh | Method and device for producing multi-layer products and associated product |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3805486A (en) * | 1972-05-31 | 1974-04-23 | Mahaffy & Harder Eng Co | Packaging apparatus and techniques |
US4058212A (en) * | 1976-04-26 | 1977-11-15 | Ihor Wyslotsky | Package for containing products |
DE2718234A1 (en) * | 1977-04-23 | 1978-11-02 | Bellaplast Gmbh | Plastics packing container for milk prods. etc. - has lid hinging on anchoring strip attached to flange of bottom portion |
US4498589A (en) * | 1984-05-04 | 1985-02-12 | Champion International Corporation | Locking hinge for reclosable package |
NZ226028A (en) * | 1987-09-09 | 1990-06-26 | Idemitsu Petrochemical Co | Hermetically sealed package which can be resealed after opening |
ES2057864T3 (en) * | 1990-01-19 | 1994-10-16 | Teich Ag | CONTAINER WITH FLANGE, WITH LID SEALED BY HEATING. |
FR2669607B1 (en) * | 1990-11-26 | 1995-05-12 | Torterotot | FLEXIBLE CLOSABLE SAFETY COVER. |
FR2731412B1 (en) * | 1995-03-08 | 1997-04-18 | Cgl Thermoformage | BOX FOR PACKAGING, METHOD FOR MANUFACTURING SUCH A BOX AND DEVICE FOR CARRYING OUT SAID METHOD |
-
2005
- 2005-07-15 DE DE102005033273A patent/DE102005033273A1/en not_active Withdrawn
-
2006
- 2006-07-11 ES ES06014352.6T patent/ES2348648T5/en active Active
- 2006-07-11 AT AT06014352T patent/ATE482892T1/en active
- 2006-07-11 EP EP06014352.6A patent/EP1743847B2/en not_active Not-in-force
- 2006-07-11 DE DE502006007945T patent/DE502006007945D1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2637316B1 (en) †| 1976-08-19 | 1977-06-16 | Gni Pk I P Ugolnyj I Petschorn | Parting welded thermoplastic ampoules from continuously mfd. web - by impressing welding blades into film under tension |
EP0427512A1 (en) †| 1989-11-09 | 1991-05-15 | Oscar Mayer Foods Corporation | Reclosable food packaging having snap closure |
DE10029797A1 (en) †| 2000-06-16 | 2001-12-20 | Eul & Guenther Gmbh | Method and device for producing multi-layer products and associated product |
Also Published As
Publication number | Publication date |
---|---|
ES2348648T3 (en) | 2010-12-10 |
EP1743847B1 (en) | 2010-09-29 |
ATE482892T1 (en) | 2010-10-15 |
DE102005033273A1 (en) | 2007-01-25 |
EP1743847A1 (en) | 2007-01-17 |
ES2348648T5 (en) | 2014-12-01 |
DE502006007945D1 (en) | 2010-11-11 |
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