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WO1997007034A1 - Recipient d'emballage et son procede de production - Google Patents

Recipient d'emballage et son procede de production Download PDF

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Publication number
WO1997007034A1
WO1997007034A1 PCT/DE1996/000826 DE9600826W WO9707034A1 WO 1997007034 A1 WO1997007034 A1 WO 1997007034A1 DE 9600826 W DE9600826 W DE 9600826W WO 9707034 A1 WO9707034 A1 WO 9707034A1
Authority
WO
WIPO (PCT)
Prior art keywords
cardboard
plastic cup
packaging container
plastic
cardboard tube
Prior art date
Application number
PCT/DE1996/000826
Other languages
German (de)
English (en)
Inventor
Werner Heinz Wilke
Fred Born
Original Assignee
Werner Heinz Wilke
Fred Born
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE29513093U external-priority patent/DE29513093U1/de
Application filed by Werner Heinz Wilke, Fred Born filed Critical Werner Heinz Wilke
Priority to AU57592/96A priority Critical patent/AU5759296A/en
Publication of WO1997007034A1 publication Critical patent/WO1997007034A1/fr

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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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/34—Coverings or external coatings
    • B65D25/36—Coverings or external coatings formed by applying sheet material

Definitions

  • the invention relates to a two-part packaging container with a plastic cup produced in the deep-drawing process and a cardboard tube which is formed from a cardboard blank with an overlap seam and tapers downwards, the cardboard tube lying closely against the plastic cup and its cup walls stabilizing shape, and a Process for the production of such a packaging container.
  • a packaging container has become known from EP 0 408 515 B1.
  • a cardboard sleeve lies like a sleeve on the plastic cup.
  • the plastic cup is made of polystyrene and projects downwards over the cardboard tube, so that the packaging container stands on a storage surface above the bottom of the plastic cup.
  • the cardboard tube is manufactured in a first manufacturing step during the production of the packaging container.
  • the plastic cup is molded into the cardboard tube using the deep-drawing process.
  • the known plastic cup is therefore made of polystyrene, which on the one hand gives the plastic cup sufficient stability, but on the other hand is extremely brittle.
  • the plastic cup therefore tends to crack if it is deformed to a greater or lesser extent. This can also occur although the cardboard sleeve still surrounds the plastic cup and the packaging container is still filled with food, for example yogurt or milk.
  • the known packaging container made of polystyrene is connected to the cardboard tube in such a way that the two parts only by destroying the cardboard tube and possibly the brittle plastic cup can be separated. Consequently, plastic cups and cardboard sleeves are not detachably joined together.
  • the tear-open tab of the cardboard tube has to be torn open in order to separate the plastic cup from the cardboard tube.
  • the two components of the packaging container can then be disposed of separately and, if appropriate, recycled.
  • the plastic cup disadvantageously causes a large volume of waste since it cannot be completely compressed. If this is attempted anyway, the plastic cup will break and an injury may result due to the formation of sharp edges.
  • polystyrene since the use of polystyrene is necessary for the stability of the known packaging container, a much more elastic polyolefin cannot be used, for example.
  • a polyolefin cannot be used if the cardboard tube into which the plastic cup is molded is first manufactured, since polyolefins contract and shrink when they cool down.
  • a plastic section is pressed into the prefabricated cardboard sleeve by means of a deep-drawing stamp, in which the plastic is pressed downward and formed into a base which projects laterally over the cardboard sleeve.
  • the thick-walled, protruding plastic base essentially determines the shape of the known packaging container.
  • the design of this plastic floor means that more plastic is consumed than is actually necessary.
  • the known packaging container disadvantageously has a high weight and a high material consumption of plastic.
  • a known 500 ml packaging container requires, for example, 9 g of plastic (polystyrene), since a sufficient stability of the known packaging container, a wall thickness of 1 to 2 mm and a sturdy cup bottom are required.
  • Printed packaging containers which do not have a cardboard tube but only consist of a plastic cup, are also difficult to recycle, since the printing ink heavily contaminates the plastic to be recycled. For this reason, a recycling process becomes problematic, complex and usually too expensive. In addition, the printing of smooth plastic surfaces is technically difficult and therefore expensive.
  • DE 31 22 937 AI a package is known which consists of a non-stackable, cylindrical and closed Containers and a protective cover lying closely against the peripheral wall of the container.
  • DE 31 22 937 AI gives the technical teaching to slide a protective cover onto a known container, for example a canister or a bottle, to protect or identify the container and to latch it to the container.
  • the dimensional stability of the packaging container is ensured by the stable container. It is therefore known from DE 31 22 937 A1 per se how dimensionally stable containers can be connected to dimensionally stable protective sleeves.
  • the protective cover and the container cannot be separated quickly and easily and without auxiliary means, so that a recycling process is only possible with difficulty.
  • a hollow plastic body is surrounded with a bottom and lid-free support jacket.
  • the plastic hollow body is a cylindrical plastic bottle produced by the blowing process.
  • Only plastic bottles and comparable, closed containers can be manufactured from the blow molding process.
  • the ability to be shaped by the blowing process by means of blown air presupposes that a preliminary product, a piston produced in the injection molding process, is already available, which forms the later opening of the bottle.
  • This process is extremely expensive, since a high material consumption of plastic is required for the piston to be manufactured and, on the other hand, only one container can be blown.
  • the blow molding process does not make it possible to manufacture a plastic container which has a low proportion of plastic.
  • the present invention is based on the object of developing a packaging container of the type mentioned in such a way that the packaging container has a significantly reduced proportion of plastic, that the packaging container is space-saving, stackable, easier to separate and separately recyclable.
  • the object is achieved in that the plastic cup and the cardboard sleeve are releasably inserted into one another, and that the lower edge of the cardboard sleeve approximately closes with a bottom of the plastic cup or the bottom in the direction of the longitudinal axis of the packaging container from an outer surface of the bottom dominated at a distance.
  • the Kunststoff ⁇ material cup of the packaging according to the invention is kung vessel always with the cardboard sleeve, and not with the plastic cup on the Absteil configuration. This has the advantage that the plastic cup can be made from a thin-walled, film-like plastic.
  • the plastic cup used according to the invention is made from a polyolefin, it has elastic properties so that it can fit snugly and smoothly against the inner wall of the cardboard tube.
  • the use of a polyolefin has the further advantage that the plastic cup can be simply pressed together after being separated from the cardboard sleeve without the plastic cup breaks. For this reason, no sharp edges can arise, which can lead to an injury when compressed and also to splashing of a residual content of the packaging cup.
  • the plastic cup of the packaging container according to the invention need only have a low dimensional stability. As a result, the plastic content of the packaging container according to the invention can be reduced to a minimum.
  • the weight of a packaging container of 500 ml can be reduced from 15 grams, which occurs in the known 500 ml packaging container, to 5 grams.
  • the plastic cup of the packaging container according to the invention advantageously obtains its rigidity and dimensional stability from the cardboard tube.
  • the packaging container can easily be separated into its two parts, the plastic cup and the cardboard sleeve. The separation can be carried out in one movement so that the cardboard tube and the plastic cup can be thrown into separate collecting containers for cardboard and plastics.
  • the packaging cup according to the invention advantageously contributes to an ecologically sensible recycling of materials.
  • the plastic cup After the packaging container has been separated into the plastic cup and the cardboard tube, the plastic cup, which is not very dimensionally stable, can simply be pressed together and contribute to reducing the volume of waste.
  • the packaging container according to the invention is similar to a paper cup (drinking cup), the cardboard inner walls of which are made by an extrusion process with firmly applied plastic. are coated with fabric. While this paper cup cannot be recycled separately, the packaging container according to the invention can be dismantled into its material components in a simple manner.
  • Essential to the invention in the packaging container is the releasable, but nevertheless secure connection of a thin-walled, elastic, less dimensionally stable plastic, such as a polyolefin, to a cardboard tube, while in the prior art plastics of higher rigidity are used.
  • the low material consumption and the space-saving possibility of stacking also have a favorable effect on the manufacturing, transport and storage costs in the packaging container according to the invention.
  • the packaging container according to the invention is printed on the cardboard walls of the cardboard tube with product labels so that the plastic cup remains free of printing ink.
  • the plastic cup can therefore advantageously be recycled without problems, since the plastic is not contaminated and retains a higher value.
  • the outer surfaces of the packaging container according to the invention have an essentially trapezoidal shape. Due to the geometric shape of the packaging container, a significantly larger number of packaging containers can be accommodated on a transport pallet, for example the European pallet. If, for example, the packaging container according to the invention has a cross-sectional shape of 88 mm ⁇ 60 mm, which tapers over a length of 130 mm to a cross-sectional area of 72 mm ⁇ 45 mm, around 50% more packaging containers can be accommodated on such a pallet than is possible with a round, tapering cross-sectional shape.
  • the dimensions given here refer to the opening cross-sections of the packaging container.
  • the lid can be provided with predetermined breaking points in order to separate the interconnected packaging containers as needed for consumption of the contents.
  • a base part made of cardboard material is provided.
  • the bottom of a plastic packaging cup could only be printed with considerable effort.
  • the expiry date was usually stamped on the bottom of the plastic cup so that it was difficult to read.
  • the base part can be printed from cardboard material, further inscriptions can also be attached to the base part, for example a computer-readable identification code for different products or other such imprints, so that the side walls can remain free for product advertising. Printing the bottom part with the identification code makes it easier for the cashier to find the identification code.
  • the bottom part contributes to increased stability of the packaging cup.
  • bottom part is thin-walled, on the one hand a further reduction in material and weight is achieved and on the other hand a reduction in the waste volume by easier compression of the cardboard tube possible.
  • the cardboard sleeve has bottom folds which are connected to one another in the erected state of the cardboard sleeve and form the base part. This has the advantage that the base part is firmly connected to the cardboard tube and can be printed with the cardboard walls of the cardboard tube at the same time. Therefore, only one printing process is necessary for printing on the packaging cup.
  • bottom folds in the area of the fold lines are separated from each other by punching, they are particularly easy to fold inwards.
  • the folded-over bottom folds can grip and pinch individual sections of the plastic cup.
  • a reinforcement of the upper and / or lower edge of the cardboard tube advantageously increases the dimensional stability of the cardboard tube. Furthermore, the upper reinforcement can be used to bring about a clamping or adhesion of the cardboard tube to the plastic cup. The lower reinforcement advantageously leads to improved stability of the packaging container according to the invention.
  • the reinforcement can be easily realized by the reinforcement of the upper and / or lower edge of the cardboard tube being formed by folds which are preferably bent towards the interior of the cardboard tube.
  • the folds are provided with adhesive grooves.
  • the adhesive grooves are formed along the fold edge and reduce the tendency of the glued folded folds.
  • the folds are spaced apart from one another by free edge pieces, the folds can be bent slightly towards the inside of the cardboard tube.
  • the free edge pieces serve for positive engagement of the folded folds on the plastic container, in particular in the area of the corners of the plastic container.
  • the packaging container has a hollow bottom and the cardboard tube has a circumferential, inner annular groove at its lower edge. This enables parts of the plastic cup to be jammed in the ring groove of the cardboard tube, which leads to a stable connection between the cardboard tube and the plastic cup.
  • Hollow bottom in this context means that the bottom of the plastic cup is set back into the packaging container in relation to a storage surface.
  • the ring groove of the cardboard tube can be formed particularly easily by the folds which are bent towards the inside of the cardboard tube.
  • molded cams are provided at the foot end of the plastic cup as a stacking distance. This has the advantage that the plastic cups separated from the cardboard tube can be stacked on top of one another without detaching or sticking together. The plastic cups can be stacked on top of one another such that the bottoms of the plastic cups are spaced apart from one another.
  • the trained cams of the plastic cover of the packaging cup according to the invention to stiffen / solidify the lower plastic cup area.
  • the cams can cooperate with a crimping of the cardboard sleeve in such a way that the cardboard sleeve is held on the outer wall of the plastic cup.
  • a mechanical locking mechanism is provided between the plastic cup and the cardboard tube.
  • the locking mechanism ensures that the plastic cup cannot slide out of the cardboard tube during packaging, transport or shopping.
  • Such a locking mechanism can be realized particularly easily in a further development of this embodiment by the locking mechanism having an outwardly projecting latching lug provided on the outer surface of the plastic cup, preferably in the upper region, and an opening provided at a corresponding point on the cardboard sleeve includes, through which the locking lug engages in the assembled state of the plastic cup and cardboard tube.
  • locking lugs are arranged on the plastic cup, a secure locking is achieved on the one hand in the assembled state of the plastic cup and cardboard tube.
  • the locking lugs serve as spacers within the beaker rod in order to ensure smooth separation before filling.
  • a tear-open mark can advantageously be provided at the edge of the overlap seam at the level of the opening.
  • a further protection against an unintentional separation of the cardboard tube and the plastic cup can be achieved in a particularly simple and easy manner in one embodiment of the invention in that on at least one outer surface of the plastic cup, preferably in the upper region, a substantially parallel to the cup edge, outwardly projecting bead is provided and that the inside of the cardboard tube in the assembled state of the plastic cup and cardboard tube immediately above the bead of the plastic cup has an inwardly projecting bulge.
  • a simple bulge can be achieved in that a step is formed by the free edge of a fold bent inwards and downwards from the upper end of the cardboard tube.
  • the step on the inside of the cardboard tube can rest on the bead of the plastic cup so that the cardboard tube cannot be pulled down from the plastic cup. If an attempt is nevertheless made to pull the cardboard tube from the plastic cup, the step rests on the bead of the plastic cup and a separation of the cardboard tube and the plastic cup is prevented.
  • This can be reinforced in an elegant manner by the fact that an outwardly projecting, raised bead of the cardboard sleeve is formed in the upper region of the cardboard tube below the step, which in the assembled state of the plastic cup and the cardboard tube is opposite the bead of the plastic cup is provided.
  • the bead of the plastic cup protrudes outward into the bead of the cardboard sleeve.
  • the corrugation of the cardboard sleeve expands the space into which the corrugation of the plastic cup can protrude beyond the step of the inner wall of the cardboard sleeve. The locking effect is thereby increased still further.
  • the cardboard tube with a rectangular cross-section has multiple-grooved corners with preferably two or four grooves.
  • the shape and design of the grooves advantageously minimize the tendency of a rigid box to reset.
  • An embodiment of the packaging container according to the invention is very particularly preferred, in which the bottom of the plastic cup protrudes downward on its outer circumference, in sections arranged around the circumference of the bottom, or pimples or feet or a downwardly projecting circumference surrounding the outer circumference of the bottom has continuous edge.
  • Such shapes can easily be molded in the deep-drawing process in the manufacture of the plastic cup and serve for mechanical clamping on both sides with the lower edge region of the cardboard sleeve surrounding the plastic cup, which is explained in more detail below.
  • gluing between the plastic and the cardboard part of the packaging container according to the invention can be avoided, so that the later releasable and separate, sorted recycling of the raw materials is ensured.
  • the scope of the invention also includes a method for producing a two-part packaging container based on a plastic cup which is produced by the deep-drawing process and tapers in cross-section in the direction of its base, the packaging container being designed in particular in the manner described above.
  • the method according to the invention is characterized in that a cardboard tube, starting from a flat, preferably printed blank, is placed around a joining device around the prefabricated plastic cup and glued in the area of an overlap seam.
  • a packaging container of comparable stability can have two parts , be produced after use in a separable form, so that a sorted, separate disposal of the starting materials by cardboard and plastic is made possible. Since in particular thermoformed plastic cups based on polyolefin can be used in the process according to the invention, the disadvantage of a transfer of odor and taste substances to the filling material of the packaging container that occurs with polyethylene heat sealing is avoided.
  • a variant of the method according to the invention is particularly preferred, in which a punched-out base part made of cardboard material is connected below the base of the plastic cup to the lower edge of the cardboard sleeve, preferably mechanically fastened by folding inwards and / or by gluing to the lower edge of the Cardboard sleeve is glued. This enables the production of a particularly dimensionally stable packaging container.
  • the punched-out base parts are provided with two continuous perforation lines, preferably parallel to one another, before being connected to the cardboard tube. This creates a press-in tab which considerably simplifies the later pushing of the plastic cup out of the cardboard sleeve for the purpose of material separation.
  • knobs or feet protruding downward on its outer circumference or a downwardly projecting peripheral rim are formed, and that the cardboard sleeve is folded inwards and mechanically by folding folds is clamped with the knobs or feet or the peripheral edge on the plastic cup.
  • this achieves a purely mechanical fastening by clamping cardboard against plastic and prevents gluing between the cardboard and the plastic part of the packaging container, which guarantees later problem-free solubility.
  • a particularly environmentally friendly method variant is one in which only cardboard material based on wood pulp or waste paper is used to produce the blank for the cardboard sleeve and possibly for the base part. While in known two-part packaging containers with the hitherto customary polyethylene sealing for the cardboard tube had to be used 100 percent pure cellulose material, the present variant of the method according to the invention also allows the two-part packaging container to be manufactured significantly more cheaply from inexpensive folding box material.
  • Another method variant is also particularly environmentally friendly, in which only aqueous white glue is used to glue parts of the cardboard sleeve and possibly the base part.
  • aqueous white glue is also completely harmless in terms of food law. Since an adhesive bond between cardboard and plastic material is not desired in any case, the use of this type of glue for the stated purpose is problem-free.
  • the scope of the invention also includes a merging device for producing a two-part packaging container by means of a method of the type described above, which is characterized in that the merging device has a central unit with mandrels which rotate step by step in one work cycle, that a first work station is provided in which the plastic cups produced in the deep-drawing process are separated and placed one after the other on a mandrel in time with the further processing, and that a second work station is provided in which they are fed by means of a feed device and, at a gluing station in the area of the later overlap seam, pre-glued individual pieces, one after the other, placed around the respective plastic cup resting on the mandrel, formed by means of a round closure into a cardboard sleeve and along the pre-glued over lapping seam are pressed together.
  • a third work station in which, for example by means of a blower device, it is checked whether a packaging container made in the two preceding work cycles and consisting of a plastic cup and a surrounding one is produced on the mandrel Cardboard tube is properly seated, whereby the third work station can emit a warning signal to subsequent work stations when an irregularity is detected.
  • the subsequent workstations can thus be "pre-warned” and stopped so that the material to be processed there is saved and not processed unnecessarily and possibly even damaging the machine.
  • a fourth work station is provided, in which pre-punched and pre-formed base parts made of cardboard material fed from a punching and deep-drawing device are successively in time with further processing in the area of The bottom of the respective plastic cup seated on the mandrel can be inserted into the cardboard sleeve surrounding the plastic cup so that a fifth work station is provided in which, in the area of a lower edge of the cardboard sleeve, a pre-gluing of the later bottom seam is carried out on the inside, that a sixth work station is provided in which the lower edge of the cardboard tube, which projects downward from the bottom of the plastic cup, is folded inwards and pressed onto the pre-glued area of the bottom seam, and in that a seventh work station is provided, in which the by the fold Flanged seam formed on the lower edge of the cardboard tube is subjected to pressure on one side, preferably on both sides.
  • the base part made of cardboard described above can thus be attached and
  • a punching device for producing the above-mentioned double perforation in the base part can already be contained in the fourth work station, which, as a later push-in tab, makes it much easier to push the plastic cup out of the cardboard tube for the purpose of sorting the materials.
  • an eighth work station is provided in which the packaging containers manufactured in the previous work stations are counted and stacked can be.
  • FIG. 1 shows a packaging container according to the invention with an essentially square cross section
  • FIG. 2 shows a further packaging container according to the invention with an essentially round cross section
  • Fig. 3 shows a longitudinal section of the packaging container
  • FIG. 4 shows a longitudinal section of a further packaging container according to the invention with a bottom part made of cardboard clamped to a bottom of the plastic cup;
  • Fig. 5 shows a longitudinal section of a further packaging container according to the invention with one in an annular groove pinched parts of a bottom of a plastic cup and a bottom part made of cardboard;
  • FIG. 6 shows a plan view of a flat blank of the cardboard tube of the packaging container according to FIG. 1;
  • FIG. 7 shows a plan view of a flat blank of a cardboard tube of a rectangular packaging container
  • FIG. 8 shows a plan view of a flat blank of a cardboard tube of a further packaging container according to the invention with a molded-on base part
  • FIG. 9 shows a plan view of a flat blank of a cardboard tube of a further packaging container according to the invention with a molded-on base part
  • FIG. 10 shows a plan view of a flat blank of a cardboard tube of a further packaging container according to the invention.
  • FIG. 11 shows a schematic plan view of an assembly machine for producing the packaging container according to the invention.
  • the Packaging container 10 comprises a cardboard tube 11, which surrounds a plastic cup 12.
  • the cardboard tube 11 and the plastic cup 12 are releasably connected to one another, so that they can be easily separated at any time, particularly when the packaging container 10 is empty.
  • the plastic cup 12 has a sealing edge 13 for attaching and sealing a lid after a liquid or solid material has been filled into the plastic cup 12.
  • the plastic cup 12 and the cardboard sleeve 11, which is formed from a blank, lie closely against one another and taper towards the bottom.
  • the cardboard tube 11 stabilizes the shape of the plastic cup 12.
  • Beads 14, 15 are integrally formed on the cardboard tube 11 in order to prevent an undesired removal of the detachable connection between the cardboard tube 11 and the plastic cup 12. 3 will explain this securing mechanism in more detail. Grooves 17, 18 counteract the tendency of the cardboard material to reset and obtain the square cross-sectional shape.
  • the packaging container 30 comprises a cardboard tube 31 which encases a plastic cup 32.
  • the cardboard sleeve 31 and the plastic cup 32 are detachably connected to one another, so that they can be easily separated at any time, particularly when the packaging container 30 is empty.
  • the plastic cup 32 has a sealing edge 33 for attaching and sealing a lid after a liquid or solid material has been filled into the plastic cup 32.
  • a sealing rim 33 a drinking rim with a rounded cross section could also be formed, so that the packaging cup 30 can perform the function of a drinking cup.
  • the plastic cup 32 and the cardboard sleeve 31, which consist of a Cut is shaped, lie close to each other and taper downwards.
  • the cardboard sleeve 31 stabilizes the shape of the plastic cup 32. Beads and grooves are not formed on the cardboard sleeve 31, so that the cardboard sleeve 31 and the plastic cup 32 are connected to one another, as shown in FIG. 5, for example.
  • FIG. 3 shows a longitudinal section of the packaging container 10.
  • the plastic cup 12 is arranged in the cardboard sleeve 11.
  • a lower edge 41 of the cardboard tube 11 projects beyond the plastic cup 12 so that the edge 41 is spaced from an outer surface 42 of the bottom 43 of the plastic cup 12.
  • the packaging container 10 stands on a shelf above the edge 41.
  • the edge 41 of the cardboard tube 11 is reinforced by folded folds 44.
  • On the bottom 43 of the plastic cup 12 is a bottom part 45 made of cardboard, which is pressed against the bottom 43 by the folds 44.
  • the bottom 43 of the plastic cup 12 is set back inward into the packaging container 10 so that a hollow bottom is created.
  • the bottom part 45 is used to print an identification code.
  • Cardboard walls 50, 51 of the cardboard sleeve 11 have, in the illustrated assembled state of the plastic cup 12 and the cardboard sleeve 11 above the beads 48, 49 of the plastic cup 12, inwardly projecting reinforcements which are formed by folded folds 52.
  • the beads 15 formed on the cardboard walls 50, 51 of the cardboard tube 11 are in the shown assembled state of the plastic cup 12 and the cardboard tube 11 directly opposite the beads 48, 49 of the plastic cup 12, so that the beads 48, 49 of the plastic cup 12 below one protrude through the folds 52 step into the beads 15 of the cardboard tube 11. An undesired separation of the cardboard tube 11 and the plastic cup 12 is prevented by this locking mechanism.
  • FIG. 4 shows a longitudinal section of a further packaging container 10a.
  • a plastic cup 12a is arranged in the cardboard sleeve 11 '.
  • the lower edge 41 'of the cardboard sleeve 11' almost closes with a bottom 43a of the plastic cup 12a.
  • the packaging container 10a stands on the edge 41 'of the cardboard tube 11' on a parting surface.
  • a bottom part 45a lies against a bottom 43a of the plastic cup 12a and is pressed by the folds 44 'which are bent inwards.
  • the bottom part 45a can be printed and gives the packaging container 10a additional stability.
  • the base part 45a made of cardboard material can be clamped or also glued to the folds 44 '.
  • a locking lug 61 is formed, which could also be formed on a cup wall 62 on which a further bead 63 is formed.
  • the bead 63 of the plastic cup 12a interacts with the bead 14 of a cardboard wall 64 in a locking manner.
  • a cardboard wall 65 of the cardboard tube 11 ' has an opening 66 through which the latching lug 61 engages in the illustrated assembled state of the plastic cup 12a and the cardboard tube 11'.
  • the locking lug 61 interacts with the opening 66 and enables a mechanical locking or locking, which prevents an undesired separation of the cardboard tube 11 'from the plastic cup 12a.
  • locking lugs could be formed on other side walls.
  • the locking lug 61 could have an outer contour that runs obliquely towards the cup wall, so that the cardboard sleeve 11 ' slightly snaps into place when the cardboard tube 11 'and the plastic cup 12a are joined together.
  • FIG. 5 shows a longitudinal section of a packaging container 10b.
  • the plastic cup 12b is arranged in the cardboard tube 11 ′′.
  • the lower edge 41 ′′ of the cardboard tube 11 ′′ projects beyond the plastic cup 12b, so that the edge 41 ′′ is spaced apart from an outer surface 42b of the bottom 43b of the plastic cup 12b.
  • the packaging container 10b stands on a parting surface above the edge 41 ′′.
  • the edge 41 '* of the cardboard sleeve 11 is reinforced by folded folds 44".
  • a bottom part 45b made of cardboard lies against the bottom 43b of the plastic cup 12b. Edge areas of the bottom part 45b and the bottom 43b, which is a hollow bottom of the plastic cup 12b forms, are clamped in an annular groove formed by the folds 44 ".
  • hollow bottom means that the bottom 43b of the plastic cup 12b is opposite a parting surface which is arranged in sections around the outer circumference of the bottom 43b and projects downwards Knobs or feet 40 or a downwardly extending circumferential edge is formed, is set back into the packaging container upwards.
  • the jamming mechanism leads to a stable connection of the cardboard tube 11 ' 1 to the plastic cup 12b Improve the connection by gluing the bottom part 45b to the cardboard sleeve 11 1 '.
  • the base part 45b is used to print an identification code.
  • beads 48b, 49b which extend outwards and run parallel to the sealing edge 13b are formed.
  • Cardboard walls 50 ′′, 51 ′′ of the cardboard tube 11 ′′ point in the illustrated assembled state of the plastic cup 12b and the cardboard tube 11 ′′ above the beads 48b, 49b of the plastic cup 12b, reinforcements projecting inwards, which are formed by folded folds 52.
  • the beads 15 formed on the cardboard walls 50 ′′, 51 ′′ of the cardboard sleeve 11 ′′ are in the illustrated assembled state of the plastic cup 12b and the cardboard sleeve 11 ′′ directly opposite the beads 48b, 49b of the plastic cup 12b, so that the The beads 48b, 49b of the plastic cup 12b protrude below a step formed by the folds 52 into the beads 15 of the cardboard tube 11 ′′. An undesired separation of the cardboard tube 11 ′′ and the plastic cup 12b is prevented by this locking mechanism.
  • the beads could also be omitted, since the jamming of the bottom 43b and the bottom part 45b in the annular groove with the aid of the folds 44 is sufficient for a stable connection of the cardboard sleeve 11 ′′ and the plastic cup 12b.
  • FIG. 6 shows a plan view of a blank 100 lying flat for a cardboard tube 11.
  • the cardboard walls 50, 51, 64, 65 and 70 become closed in the upright state of the blank 100 via fold lines A, B, C, D. ⁇ NEN belt folded with an overlap seam 71 and glued.
  • the connection of the cardboard wall 70 to the cardboard wall 65 could, however, also be achieved by another conceivable fastening.
  • the folds 52 can be folded inwards over fold lines 72 and reinforce the upper edge 73 of the cardboard sleeve 11.
  • the folds 44 can also be folded inwards over fold lines 74 and reinforce the lower edge 41 of the cardboard sleeve 11 or serve for pressing on or Pinching a bottom part made of cardboard material or edge areas of a plastic floor.
  • the folds 44 and 52 are spaced apart from one another by free edge pieces, which facilitate folding.
  • the blank 100 has essentially beads 14, 15 which run parallel to the upper edge 73 and are formed on three cardboard walls. The beads 14, 15 could also be formed only on one or two cardboard walls.
  • the opening 66 serves to receive a detent formed on a plastic cup, which engages in the opening 66 in the assembled state of the cardboard tube and the plastic cup.
  • the blank 100 of the cardboard tube 11 has multiple-grooved corners.
  • two grooves 17, 18 are embossed into the cardboard walls at each corner of the blank 100. Depending on the rigidity of the cardboard used, a larger number of these grooves could also be formed.
  • the blank 100 also has a tear-open mark 75, which provides for an identification of the overlap seam 71.
  • the cardboard tube can preferably be torn open at this marked point.
  • FIG. 7 shows a top view of a flat blank 300 for a cardboard tube 31 of the packaging container 30.
  • Cardboard walls 80 to 84 are in the erected state of the blank 300 via fold lines E, F, G, H to form a closed belt with an overlap seam 85 folded and glued.
  • the connection of the cardboard wall 80 to the cardboard wall 84 could in turn also be achieved by another conceivable fastening.
  • Folds 86 can be folded inwards via fold lines 87 and reinforce an upper edge 88 of the cardboard tube 31.
  • Folds 89 can also be folded inwards via fold lines 90 and reinforce a lower edge 91 of the cardboard tube 31 or serve to press or clamp one Bottom part made of cardboard and a bottom of a plastic cup.
  • the folds 86 and 89 are spaced apart from one another by free edge pieces which make it easier to bend.
  • the blank 300 has beads 34, 35 which run essentially parallel to the upper edge 88 and are formed on three cardboard walls. The beads 34, 35 could also be formed only on one or two cardboard walls.
  • a breakthrough 92 serves to receive a detent formed on a plastic cup, which engages in the breakthrough 92 when the cardboard sleeve and the plastic cup are assembled.
  • the blank 300 of the cardboard tube 31 has multiple-grooved corners.
  • two grooves 37, 38 are embossed into the cardboard walls at each corner of the blank 300. Depending on the rigidity of the cardboard used, a larger number of these grooves could also be formed.
  • the blank 300 also has a tear-open mark 93, which provides for the overlap seam 85 to be marked for a desired tear-open.
  • FIG. 8 shows a top view of a flat blank 101 for the cardboard tube of a further packaging container according to the invention.
  • cardboard walls 102 to 106 are folded and glued together by folding lines K, K ', M, M', L, L ', N, N' to form a closed belt with an overlap seam 107.
  • the connection of the cardboard wall 102 to the cardboard wall 106 could in turn also be achieved by another conceivable fastening. It would also be conceivable to reinforce the upper edge 108 of the cardboard tube formed from the blank 101 by folds which can be folded inwards.
  • Bottom folds 109 to 113 can also be folded inwards via fold lines 117 and, when connected to one another, form a bottom part of the cardboard tube, which can carry or partially clamp a plastic cup and can be printed from the outside.
  • the blank 101 has multiple-grooved corners.
  • two grooves 115, 116 are embossed into the cardboard walls at each corner of the blank 101. Depending on the rigidity of the cardboard used, a larger number of these grooves could also be formed.
  • the bottom folds 109 to 113 are separated from one another by punched-outs 118, so that the bottom folds can easily be bent inwards and form the bottom part.
  • Ellipse-shaped openings 119 serve to accommodate a plurality of latching lugs formed on a plastic cup, which engage in the openings 119 in the assembled state of the cardboard sleeve and plastic cup.
  • the lower edge 120 closes the cardboard tube and a plastic cup with the bottom of the plastic cup.
  • FIG. 9 shows a plan view of a flat blank 121 for the cardboard tube of a further packaging container according to the invention.
  • cardboard walls 122 to 126 are folded and glued together via fold lines O, P, Q, R to form a closed belt with an overlap seam 127.
  • the connection of the cardboard wall 122 to the cardboard wall 126 could in turn also be achieved by another conceivable fastening. It would also be conceivable to reinforce the upper edge 128 of the cardboard tube resulting from the blank 121 by folds which can be folded inwards.
  • Bottom folds 129 to 133 can also be folded inwards via fold lines 134 and, connected to one another, form a bottom part of the cardboard tube, which can carry or partially clamp a plastic cup and can be printed on from the outside.
  • the cut 121 multi-grooved corners.
  • grooves 135 to 138 are embossed into the cardboard walls at two corners of the blank 121. Depending on the rigidity of the cardboard used, however, a larger or smaller number of these grooves could also be formed. It would also be conceivable to provide further corners of the blank 121 with grooves 135 to 138.
  • the bottom folds 129 to 133 are separated from one another by punched-out sections, so that the bottom folds can be easily bent inwards and form a bottom part.
  • Ellipse-shaped openings 141 serve to receive a plurality of latching noses formed on a plastic cup, which engage in the openings 141 in the assembled state of the cardboard sleeve and the plastic cup.
  • a lower edge 142 closes off from the bottom of the plastic cup.
  • FIG. 10 shows a plan view of a flat blank 201 for a cardboard tube of a further packaging container according to the invention.
  • the cardboard walls 202 to 206 are folded and glued together via fold lines S, T, U, V to form a closed belt with an overlap seam 207.
  • the connection of the cardboard wall 202 to the cardboard wall 206 could, however, also be achieved by another conceivable fastening.
  • the folds 210 can be folded inwards via fold lines 211 and reinforce the lower edge 211 'of the cardboard sleeve.
  • Adhesive grooves 212 are formed along the fold edge of the folds 210 and reduce a tendency to return of the glued folded folds 210.
  • the blank 201 of the cardboard tube has multiple-grooved corners. At each corner of the blank 201 are in addition to the Groove lines grooves 215, 216 are embossed into the cardboard walls. Depending on the rigidity of the cardboard used, however, a greater or lesser number of these grooves could also be formed.
  • the blank 201 also has a tear-open mark 217 which provides for an identification of the overlap seam 207. At this marked point, the cardboard sleeve can preferably be torn open. Ellipse-shaped openings 219 serve to accommodate a plurality of locking lugs formed on a plastic cup, which engage in the opening 219 when the cardboard sleeve and plastic cup are in the assembled state. When the cardboard tube and a plastic cup are joined together, the lower edge 211 'closes off from the bottom of the plastic cup.
  • FIG. 11 shows, in schematic form, a top view of a merging machine 400 for producing the two-part packaging container 10 according to the invention described in detail above; 10a; 10b; 30.
  • the core of the merging device 400 according to the invention is a central unit 420 which, in the exemplary embodiment shown, has eight holding mandrels rotating step by step in one work cycle.
  • plastic cups 12; 12a; 12b; 23 isolated and placed one after the other in time with the further processing on the mandrel just positioned at the first workstation 401.
  • the respective plastic cup 12; 12a; 12b; 32 a blank 100; 101; 121; 201; 300 fed to a Gluing station 410 in the area of the later overlap seam 71; 85; 107; 127; 207 was pre-glued.
  • the blank is placed around the plastic cup and by means of a round closure to a cardboard tube 11; 11 "; 11 ''; 31 shaped and compressed along the pre-glued overlap seam.
  • a check is carried out (for example by means of a blower device) as to whether a packaging container made in the two previous work cycles and consisting of a plastic cup and a cardboard sleeve surrounding the plastic cup is properly seated. If this is not the case, the third workstation 403 issues a warning signal to the subsequent workstations, so that they are deactivated accordingly. Parts incorrectly seated on the mandrel can be blown away, for example, into a collecting container at the third work station 403, so that the mandrel is free again in the subsequent work stations.
  • the plastic cup with the surrounding cardboard sleeve which is normally seated on the mandrel and is surrounded by a punching and deep-drawing device 411, is turned into a pre-punched and pre-formed bottom part 45; 45a; 45b supplied from cardboard material.
  • the bottom part 45; 45a; 45b is in the area of the bottom 43; 43a; 43b of the plastic cup seated on the mandrel in the area of the lower edge 41; 41 '; 41 '' into the cardboard tube 11; 11 '; 11 ''; 31 used.
  • the by turning the lower edge 41; 41 '; 41 '' of the cardboard tube 11; 11 '; 11 '' flare is subjected to pressure on one side, preferably from both sides, in a seventh workstation 407, so that a firm adhesive connection of the corresponding cardboard parts is produced.
  • an eighth work station 408 the packaging containers 10; manufactured in the previous work stations 401 to 407; 10a; 10b; 30 counted and stacked and then either made ready for dispatch or sent to a filling station.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)

Abstract

L'invention concerne un récipient d'emballage (10b) en deux parties, comprenant une gobelet en plastique (12b) produit par emboutissage et une gaine en carton (11'') qui est formée à partir d'une partie découpée en carton avec un joint à recouvrement et qui se rétrécit vers le bas. La gaine en carton est plaquée contre le gobelet en plastique et stabilise les parois (46b, 47b) du gobelet. L'invention est caractérisée en ce que le gobelet en plastique (12b), réalisé par exemple en polyoléfine, et la gaine en carton (11'') sont emboîtés l'un dans l'autre de façon amovible, et en ce qu'un bord inférieur (41'') de la gaine en carton (11'') fait saillie par rapport au fond (43b), en direction de l'axe longitudinal du récipient d'emballage (10b), à distance de la surface extérieure (42b) du fond (43b). Ainsi, ce récipient d'emballage contient jusqu'à 70 % de plastique en moins, peut être empilé (d'où un gain de place) et est facile à recycler car les deux parties sont facilement séparables.
PCT/DE1996/000826 1995-08-16 1996-05-11 Recipient d'emballage et son procede de production WO1997007034A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57592/96A AU5759296A (en) 1995-08-16 1996-05-11 Packaging container and process for producing it

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29513093.8 1995-08-16
DE29513093U DE29513093U1 (de) 1994-11-15 1995-08-16 Verpackungsbehälter

Publications (1)

Publication Number Publication Date
WO1997007034A1 true WO1997007034A1 (fr) 1997-02-27

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Application Number Title Priority Date Filing Date
PCT/DE1996/000826 WO1997007034A1 (fr) 1995-08-16 1996-05-11 Recipient d'emballage et son procede de production

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AU (1) AU5759296A (fr)
DE (1) DE29611301U1 (fr)
WO (1) WO1997007034A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29714534U1 (de) * 1997-08-14 1998-12-17 Gizeh Verpackungen GmbH & Co. KG, 51702 Bergneustadt Becher
US5932307A (en) * 1996-05-03 1999-08-03 Baxter International Inc. Oriented medical tubing
US5954702A (en) * 1996-05-03 1999-09-21 Baxter International Inc. Interface geometry for adhesive bonds
EP0974263A3 (fr) * 1998-07-15 2000-04-26 Gebr. Pöppelmann, Kunststoffwerk-Werkzeugbau Pot en plastique, moule d'emboutissage et procédé pour sa fabrication
US6187400B1 (en) 1996-05-03 2001-02-13 Baxter International Inc. Medical tubing and pump performance enhancement by ionizing radiation during sterilization
WO2001021382A1 (fr) * 1999-09-22 2001-03-29 Werner Heinz Wilke Installation pour la production de gobelets en matiere plastique
US6506333B1 (en) 1996-05-03 2003-01-14 Baxter International Inc. Method of surface modifying a medical tubing
US7536767B2 (en) 2005-05-27 2009-05-26 Prairie Packaging, Inc. Method of manufacturing a reinforced plastic foam cup
US7552841B2 (en) 2005-05-27 2009-06-30 Prairie Packaging, Inc. Reinforced plastic foam cup, method of and apparatus for manufacturing same
DE102008008151A1 (de) * 2008-02-08 2009-08-13 Krones Ag Flüssigkeitsbehälter und Verfahren zu dessen Herstellung
US9676141B2 (en) 2010-03-04 2017-06-13 Pactiv LLC Apparatus and method for manufacturing reinforced containers

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH690431A5 (de) * 1996-09-26 2000-09-15 Sandherr Packungen Ag Verfahren zum Herstellen eines becherförmigen Kombi-Verpackungsbehälters sowie Kunststoffinnenteil für ein solches Verfahren.
DE19704522A1 (de) * 1997-02-06 1998-08-20 Schmalbach Lubeca Behälter mit zweitem Schnappboden
US20060131317A1 (en) * 2004-12-17 2006-06-22 Lewis Bresler Paper-wrapped polymer beverage container
US7694843B2 (en) 2005-05-27 2010-04-13 Prairie Packaging, Inc. Reinforced plastic foam cup, method of and apparatus for manufacturing same
US7818866B2 (en) 2005-05-27 2010-10-26 Prairie Packaging, Inc. Method of reinforcing a plastic foam cup
US7814647B2 (en) 2005-05-27 2010-10-19 Prairie Packaging, Inc. Reinforced plastic foam cup, method of and apparatus for manufacturing same
DE102020102544A1 (de) * 2020-02-02 2021-08-05 Van Genechten Packaging N.V. Schalen- oder becherförmiger Verpackungsbehälter
AT525891B1 (de) * 2022-10-10 2023-09-15 Greiner Packaging Ag Außenteil und damit ausgestatteter Kombi-Verpackungsbehälter, Verfahren zur Herstellung und

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Publication number Priority date Publication date Assignee Title
US3414180A (en) * 1963-03-14 1968-12-03 Dow Chemical Co Plastic containers
EP0041713A1 (fr) * 1980-06-09 1981-12-16 Nihon Matai Company Limited Réceptacle pour boissons alcooliques
GB2083446A (en) * 1980-09-10 1982-03-24 Socar Protective coverings for bottles
WO1992017375A1 (fr) * 1991-03-26 1992-10-15 Ab Åkerlund & Rausing Recipient d'emballage et procede de production

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US3414180A (en) * 1963-03-14 1968-12-03 Dow Chemical Co Plastic containers
EP0041713A1 (fr) * 1980-06-09 1981-12-16 Nihon Matai Company Limited Réceptacle pour boissons alcooliques
GB2083446A (en) * 1980-09-10 1982-03-24 Socar Protective coverings for bottles
WO1992017375A1 (fr) * 1991-03-26 1992-10-15 Ab Åkerlund & Rausing Recipient d'emballage et procede de production

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5932307A (en) * 1996-05-03 1999-08-03 Baxter International Inc. Oriented medical tubing
US5954702A (en) * 1996-05-03 1999-09-21 Baxter International Inc. Interface geometry for adhesive bonds
US6187400B1 (en) 1996-05-03 2001-02-13 Baxter International Inc. Medical tubing and pump performance enhancement by ionizing radiation during sterilization
US6506333B1 (en) 1996-05-03 2003-01-14 Baxter International Inc. Method of surface modifying a medical tubing
DE29714534U1 (de) * 1997-08-14 1998-12-17 Gizeh Verpackungen GmbH & Co. KG, 51702 Bergneustadt Becher
EP0974263A3 (fr) * 1998-07-15 2000-04-26 Gebr. Pöppelmann, Kunststoffwerk-Werkzeugbau Pot en plastique, moule d'emboutissage et procédé pour sa fabrication
WO2001021382A1 (fr) * 1999-09-22 2001-03-29 Werner Heinz Wilke Installation pour la production de gobelets en matiere plastique
US7536767B2 (en) 2005-05-27 2009-05-26 Prairie Packaging, Inc. Method of manufacturing a reinforced plastic foam cup
US7552841B2 (en) 2005-05-27 2009-06-30 Prairie Packaging, Inc. Reinforced plastic foam cup, method of and apparatus for manufacturing same
DE102008008151A1 (de) * 2008-02-08 2009-08-13 Krones Ag Flüssigkeitsbehälter und Verfahren zu dessen Herstellung
US9676141B2 (en) 2010-03-04 2017-06-13 Pactiv LLC Apparatus and method for manufacturing reinforced containers

Also Published As

Publication number Publication date
DE29611301U1 (de) 1996-08-29
AU5759296A (en) 1997-03-12

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