EP2043853B1 - Gobelet en materieaux de papier - Google Patents

Gobelet en materieaux de papier Download PDF

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Publication number
EP2043853B1
EP2043853B1 EP07785961.9A EP07785961A EP2043853B1 EP 2043853 B1 EP2043853 B1 EP 2043853B1 EP 07785961 A EP07785961 A EP 07785961A EP 2043853 B1 EP2043853 B1 EP 2043853B1
Authority
EP
European Patent Office
Prior art keywords
cup
holding
sleeve
interior
skirt
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.)
Active
Application number
EP07785961.9A
Other languages
German (de)
English (en)
Other versions
EP2043853A1 (fr
Inventor
Robert Frost
Uwe Messerschmid
Werner Stahlecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PTM Packaging Tools Machinery Pte Ltd
Original Assignee
PTM Packaging Tools Machinery Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PTM Packaging Tools Machinery Pte Ltd filed Critical PTM Packaging Tools Machinery Pte Ltd
Publication of EP2043853A1 publication Critical patent/EP2043853A1/fr
Application granted granted Critical
Publication of EP2043853B1 publication Critical patent/EP2043853B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3865—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers
    • B65D81/3869—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers formed with double walls, i.e. hollow
    • 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
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0233—Nestable containers
    • 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
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/10—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
    • B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
    • B65D3/14—Discs fitting within container end and secured by bending, rolling, or folding operations
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/28—Other details of walls
    • B65D3/30—Local reinforcements, e.g. metallic rims
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/594—Modifying the shape of tubular boxes or of paper bottle necks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping

Definitions

  • the invention relates to a cup made of a paper material having a fillable interior, which is formed by a conical jacket and a bottom, wherein the bottom is secured at the lower end of the interior with a frame substantially liquid-tight on the jacket, wherein the jacket and / or the Floor in the region of the frame and / or the frame itself at least in the region of the circumference has an outwardly projecting widening and wherein a lower edge of the expansion forms a base for the cup.
  • the invention further relates to a method for producing a cup from a paper material, which consists of a conical jacket and a bottom secured in the region of the smaller circumference of the shell by a frame.
  • a mug of this kind is through the JP2001-192015A State of the art.
  • the frame of the well-known cup widens downwards.
  • the widening serves to fasten an outer jacket which surrounds the jacket bounding the inner space to form a cavity. Since the widening of the frame defines the distance between the inner jacket and the outer jacket, the widening of the frame must be circumferential along the circumference. A partial expansion of the frame is not possible.
  • the outer jacket is placed around the frame, turned inwards and fastened there. When attaching the outer shell to the frame, it may happen that the tightness of the frame is impaired. In addition, the attachment of the outer sheath by wrapping is very expensive.
  • the outer shell completely encloses the frame, so that it is no longer visible from the outside.
  • the outer sheath can be pressed from the inside only with a very small force, which can absorb the frame itself If the pressure force is too high, the frame can tear, on the other hand, the attachment of the outer sheath may be poor if the pressing force is too low.
  • JP 55-134046 A is a single-walled paper cup is known in which the jacket and the bottom are connected by a frame substantially liquid-tight together.
  • the frame has at its lower edge, which forms a base for the cup, a thickening, which is formed by suitable compression of the lower edge of the frame.
  • the thickening projects radially outwardly and is intended to engage a radially outwardly extending bead on the inner shell of a lower cup when multiple cups are stacked together.
  • several, radially outwardly projecting beads are provided on the inner shell of the cup, which engage in stacking a plurality of cups on the inside of the mouth roll of a lower cup or in further beads on the inner surface of the lower cup.
  • GB 2 420 267 A is a double-walled paper cup known.
  • the paper cup has on its inner shell above the bottom of a projecting into the interior shoulder. This shoulder is intended to form a support surface for the lower, rolled-up edge of the outer shell of a respective upper cup when stacking a plurality of cups.
  • the frame is a very important element of the cup.
  • the frame is necessary for the connection between the jacket and the floor.
  • At the frame are at least two layers of material in the thickness direction to each other, namely the material of the bottom and the material of the inner space bounding shell.
  • the bottom is designed cup-shaped, the open side of the filling opening of the cup is remote.
  • the at least two material layers are thus preferably arranged along the wall of the cup-shaped bottom.
  • the jacket is wrapped around the material of the floor, and that the frame consists of three or more layers of material.
  • the material of the bottom is glued or sealed to the material of the jacket in the region of the frame in order to be liquid-tight at least for a certain period of time.
  • paper material from which the bottom and the jacket are made can be understood as meaning different materials which have at least one layer of paper, cardboard or cardboard.
  • the material may comprise one or more layers of plastic and / or aluminum.
  • the paper material is waxed or painted in order to have a resistance to the liquid to be filled into the interior.
  • the paper material is at least on the side bounding the interior with a thin plastic layer, preferably made of polyethylene, coated.
  • the moldability and in particular the extensibility of such paper material is limited. Too much deformation, the paper material itself or even a proposed coating tear, so that the tightness is impaired.
  • the frame is an essential design feature that can not be waived.
  • the invention is based on the object to provide a flexibly deployable and stackable cup of the type mentioned.
  • the object is achieved by a cup having the features of claim 1.
  • the jacket and / or the bottom in the region of the frame and / or the frame itself have at least in an outwardly flared portion around the circumference, and a lower edge forms a base for the cup.
  • a substantially liquid-tight semi-finished product with a fillable interior space is used, on which the jacket and / or the bottom in the region of the frame and / or the frame itself is widened outward at least in a region along the circumference.
  • the base of the cup is increased by the expansion, even if the expansion, for example, is only partial, so that the cup has an improved stability.
  • the expansion is not or not completely covered by an outer shell, so that the material of the shell or the floor immediately forms the base.
  • the frame can not be impaired in its tightness by the attachment of the additional material of the outer shell.
  • the expansion is continuous and uniform along the circumference. When the paper material is coated, it is advantageous to make the expansion only so great that the coating does not tear.
  • the frame is not widened over its entire height.
  • the region of the frame bordering the bottom remains in its original form, while the lower edge of the frame is widened.
  • the high of Widening of the frame can correspond to approximately half the height of the frame.
  • the frame then has - seen in an axial section - different angles of inclination to the central axis of the cup, wherein the frame widens in the region of the lower edge with an increased angle of inclination.
  • the frame has two different height ranges that fulfill different functions.
  • the upper height area serves to seal the fillable interior and connects the conical jacket substantially liquid-tight with the ground.
  • the material of the inner space bounding shell and / or the wall of the floor is expanded and forms with its lower edge an enlarged footprint for the cup.
  • a liquid-tight connection between the material of the soil and the material of the shell is no longer essential.
  • the material of the jacket or of the floor may be heated in the region of the frame, at least in the region of the lower edge, before and / or during the expansion.
  • the warming can be done for example by blowing the frame with hot air or by a warmed-Avemweit tool.
  • the temperature is preferably chosen such that a plastic layer present on the paper material does not yet reach its melting point, but merely becomes somewhat softer.
  • a widening tool has at least two elements, one of which widens the frame from the inside, while the second holds it as a counter-tool from the outside. In this way it can be ensured that, even with a heated frame, the liquid-tight connection between jacket and bottom does not come off.
  • the two elements of the widening tool can consist of, for example, radially movable jaws, axially movable mandrels or rollers circulating along the circumference of the frame.
  • the cup of the invention can be used very versatile, since it can be used both without outer sheath and with different outer shells.
  • a heat-insulating jacket is provided, which partially surrounds the jacket bounding the interior space to form a cavity.
  • the outer sheath is thereby preferably pushed onto the inner conical jacket limiting the inner space along the central axis and fixed before the frame is expanded.
  • a stackable cup is, for example, through the EP 1 227 042 B1 known.
  • the interior of the limiting jacket of the known cup has a first means for holding another cup of the same kind.
  • the well-known cup points to a Outer jacket, which surrounds the inner space bounding shell with a heat-insulating cavity, a second means for holding.
  • the second means for holding is formed by an inwardly directed curl mounted at the lower end of the outer shell.
  • the well-known cup has the disadvantage that the forces occurring during stacking are transmitted via the jacket bounding the interior and over the outer jacket.
  • the forces that must be passed within the cup from the first means for holding to the second means for holding, are first transmitted through the inner space bounding sheath to the connection point between the inner shell and outer shell and passed through this connection point to the outer shell.
  • the forces are then forwarded to the trained as Einrollung second means for holding and transferred there to the next cup.
  • both the inner shell and the outer jacket must be designed to be stable enough to absorb the forces occurring.
  • the joint between the outer shell and the inner shell must be designed for the maximum forces occurring.
  • the design freedom of the cup after the EP 1 227 042 B1 is disadvantageously limited because the attached to the outer jacket second means for holding must always be adapted to the dimensions of the first means for holding another cup of the same kind and to the forces to be transmitted. It is not possible to provide the outer shell with any shape, or to change its shape as desired. In addition, it is not possible to omit, if necessary, the outer shell, without losing the good stacking properties.
  • the cup according to the present invention it is provided that on the frame means for holding another cup of the same kind is arranged, which can cooperate in a stacking of the cup with a similar cup.
  • the means for holding is advantageously formed by the expansion. It is preferably provided that a first means is arranged to hold on the jacket bounding the interior, that at a Stacking of the cup can cooperate with a attached to the expansion of a similar cup second means for holding.
  • the second means for holding is arranged on the jacket bounding the interior or on the floor or on a frame, by which the jacket bounding the interior is connected to the floor.
  • the second means for holding is attached to a component of the cup that is in contact with the fillable interior.
  • the forming of the first and second means for holding on a prefabricated as a semi-finished mug has the advantage that the manufacture of the semifinished product can be carried out on a conventional cup machine, which is followed by a device for forming these holding means.
  • the cup according to the invention has the advantage that it can be stacked safely and stably even without the presence of an outer jacket and can also be unstacked again without jamming. If it is provided to associate the cup with a heat-insulating outer jacket, it can be largely independent and free from the cup of the EP 1 227 042 B1 design existing restrictions. The forces occurring during stacking are forwarded only within the jacket delimiting the interior from the first means for holding to the second means for holding. An outer jacket is therefore not absolutely necessary. If, nevertheless, an outer sheath is to be present, then this is not claimed by the forces occurring during stacking.
  • the frame, by which the jacket bounding the interior space is connected to the floor, is a very stable part of the cup and is particularly well suited for absorbing forces.
  • the forces occurring during stacking are essentially determined by the jacket delimiting the interior from the first means for holding on the second means for holding, which can be formed by the widening on the frame. transfer. This makes it possible to form very stable stacks with a large number of cups, which do not then become wedged into one another when the stacks are exposed to shocks or, for example, jerkily set down on the ground.
  • the inner space limiting coat and the ground are already strong enough to absorb the forces occurring during stacking, since they must also absorb the forces occurring during filling.
  • the dimensions of the second means for holding are adapted to the dimensions of the first means for holding another cup of the same type.
  • the first means for holding another cup of the same kind can be formed in any desired manner. It is essential that a contour is formed, the forces acting in the axial direction of the cup forces, so the forces acting when stacking between two cups record.
  • the first means for holding is preferably designed as a bead or rib, which is formed at least in a region along the circumference in the inner space bounding shell.
  • the bead or rib can be designed along the circumference continuously or with interruptions.
  • the cup has a heat-insulating outer shell
  • the design of the heat-insulating outer shell is arbitrary in itself.
  • the outer sheath can be made for example of a plastic-paper or composite material.
  • the outer sheath can also be corrugated, corrugated, embossed or provided with a foamed layer.
  • the outer sheath can also be designed as a multilayer, for example, a corrugated intermediate layer can be provided, which is covered by a smooth overlying outer layer.
  • the fixing of the outer shell to the inner cup can be done for example by sealing or gluing. It causes a secure connection between the outer shell and the inner space bounding shell, so that slipping of the outer shell is reliably prevented, even if the outer shell has only a small amount.
  • the outer casing ends below the first means for holding another cup of the same kind or even below the bottom.
  • the attached to the inner sheath first means for holding is thereby covered by the outer sheath and is no longer visible from the outside.
  • the outer shell ends above the expansion of the frame.
  • the expansion on the frame by an interaction of an outside and inside the frame arranged tool, without the already on the inner space limiting jacket deferred outer sheath impedes the forms of expansion.
  • the expansion can be formed very precisely. So that space remains below the outer sheath for the application of a tool, a distance of more than 1 millimeter, in particular of more than 2 mm, is provided between the outer sheath and the widening.
  • the widening is advantageously widened so far outwards that a parallel to the inner wall bounding the casing extends at a certain distance outside of the jacket defining the inner space, at the lower edge of the widening.
  • the outer contour of the outer shell is within the parallels with the jacket bounding the inner space, which is applied to the expansion of the frame.
  • Cup 1 shown essentially consists of a conical shell 2 and a cup-shaped bottom 3.
  • the open side of the cup-shaped bottom 3 is arranged so that it faces away from the filling opening of the cup 1.
  • the bottom 3 is connected with its wall 31 in the region of the smaller circumference of the shell 2 liquid-tight with this by a frame 4.
  • the material of the jacket 2 is wrapped around the wall 31 of the bottom 3 and hammered inwards.
  • the jacket 2 and the bottom 3 form a fillable interior 5 of the cup 1.
  • the fillable interior 5 has a height A.
  • the inner space 5 delimiting shell 2 has at its upper edge, ie in the region of the larger circumference, an outwardly beaded mouth roll 6, which surrounds the filling opening.
  • the property "conical" of the shell 2 is understood to mean that the shell 2 in the in FIG. 1 shown longitudinal section of the mouth roll 6 to the bottom 3 tapers.
  • the jacket 2 has an angle of inclination ⁇ to the center axis 13 of the cup 1 in the region of the fillable interior 5. It is irrelevant which shape of the jacket 2 has in cross section.
  • the shell 2 may be circular in cross section, for example, oval or rectangular with rounded corners.
  • the cup 1 has a truncated cone-like shape in the case of a round cross-section of the conical shell 2, while in the case of a rectangular cross-section of the conical shell 2 it has a rather truncated pyramidal shape.
  • the frame 4 has at least in an area along its circumference an outwardly projecting widening 10.
  • a lower edge 14 of the expansion 10 on the frame 4 forms a base for the cup 1.
  • the cup 1 is in use on its footprint, which is increased by the expansion 10. As a result, tilting of the cup 1 is difficult.
  • the widening 10 is preferably designed circumferentially along the circumference of the frame 4.
  • the outwardly extending widening 10 also forms a means 9 for holding another cup 1 'of the same kind, which can cooperate with a stacking of the cup 1 with a similar cup 1'.
  • the stacking of the cup 1 in a similar cup 1 ' is in FIG. 2 shown.
  • the widening 10 as a means 9 for stacking the cup 1 can cooperate, for example, with a jacket 2 'bounding the interior 5'. Other means of stacking are not essential.
  • the jacket 5 delimiting the inner space 5 has at least one first means 7 for holding another cup 1 of the same kind, which may be of any desired shape. It is important that the first means 7 for holding has at least one contour which can absorb forces acting in the direction of the central axis 13 of the cup 1, ie forces which act on stacking between two cups.
  • the first means 7 for holding can be formed for example by a rib or bead 8, which projects into the interior of the cup 1.
  • said second means 9 is arranged in the form of the expansion 10.
  • the dimension Y of the second means 9 for holding is adapted to the dimension X of the first means 7 for holding the other cup 1 'of the same kind.
  • the dimension Y of the second means 9 for holding corresponds to the largest outer diameter of the expansion 10 on the frame, so that Diameter enclosing the expansion 10.
  • the adaptation of the dimensions X and Y takes place advantageously such that the dimension Y is chosen to be slightly smaller or at most the same size as the dimension X.
  • the cooperation of the first means 7 and the second means 9 for holding is applied to the in FIG. 2 shown cups 1 and 1 'clearly.
  • the first means 7 'of the cup 1' attached to the jacket 5 'delimiting the interior 5' accommodates the second means 9 of the cup 1.
  • the attached to the frame 4 of the cup 1 expansion 10 and especially the lower end of the expansion 10 relies on the bead 8 ', which is formed in the shell 2'.
  • the height B of the expansion 10 - as in FIG. 1 recognizable - is smaller than the entire height Z of the frame 4. Due to the lower height B of the expansion 10 remains on the frame a height range C, which takes over the seal between the inner space 5 limiting coat 2 and the bottom 3. In this case, the height B preferably corresponds approximately to half the height Z. In the axial section of the FIG. 1 seen, the frame 4 different inclination angle ⁇ and ⁇ to the central axis 13 of the cup 1 on.
  • the inclination angle ⁇ of the height range B of the frame 4 is in each case directed so that the frame widens toward the lower edge 14 and at its lower edge 14 has the largest dimension Y, ie seen parallel to the central axis 13 of the lower edge 14 of Frame 4 forms the furthest from the central axis 13 region of the frame 4.
  • the frame 4 tapers in the height range C still with the inclination angle ⁇ , which corresponds to the inclination angle ⁇ of the shell 2 in the region of the inner space 5.
  • the widening 10 continues in any case to the lower edge 14, which forms the base.
  • Other possible embodiments of the frame 4 are below even with the help of FIG. 9 described.
  • the diameter Y enclosing the widening 10 is preferably larger than the diameter D enclosing the region of the base 3 which is in contact with the interior 5.
  • the means 7 for holding the jacket 5 delimiting the inner space 5 are arranged not higher above the base 3 than one third of the height A of the inner space 5 , Even if the means 7 are dispensed with and the widening 10 is supported directly on the conical region of the jacket 2, the diameter Y surrounding the widening 10 is preferably smaller than a diameter enclosing the inner contour of the jacket 2 at a height above the base 3 of FIG about one third of the height A.
  • a height range C without expansion, in which a part of the frame 4 remains in its original shape and is not expanded, is particularly important for the inventive method for producing a stackable cup 1, in which a semifinished product is used with a fillable interior 5, the consists of the conical jacket 2 and the already liquid-tight attached bottom 3.
  • the semifinished product thus has a frame 4, which, however, does not yet contain a widening 10.
  • the bead 8 is shaped as a first means 7 for holding and the expansion 10 as a second means 9 for holding. This method has the advantage that the semifinished product can be produced on a conventional cupping machine.
  • the semifinished product is then fed to a device which forms the first means 7 for holding and the second means 9 for holding the semifinished product and completes the stackable cup 1. Due to the undeformed height range C, the tightness of the frame 4 is not affected.
  • the rib or bead 8 can be embossed or rolled by molding tools which are delivered to the shell 2 in the axial or radial direction of the cup 1.
  • the widening 10 on the frame 4 can be formed for example by a conical mandrel which is delivered to the frame 4 from the bottom.
  • the frame 4 may be heated to form the expansion 10. Since a mold which makes a sliding movement relative to the surface of the frame 4 can very easily lead to wrinkling, it may also be advantageous to form the expansion 10 by means of a rolling tool or a radially expanding tool. It may be advantageous to deliver a correspondingly shaped counter-tool to the outer circumference of the frame 4 in order to support the formation of the widening 10.
  • FIG. 3 a particular embodiment of the expansion 10 is shown on the frame 4.
  • the expansion 10 according to FIG. 3 is not performed on the entire circumference of the frame 4 circumferential.
  • partial expansion 10 of FIG. 3 can be configured in addition to the concave configuration of the region 11 between the four widenings 10 of these also rectilinear or slightly convex.
  • the outline of the frame 4 may be polygonal, the corners are naturally rounded.
  • the frame in areas 11 according to FIG. 3 Recesses 111, slots or predetermined breaking points.
  • the expansion 10 when the expansion 10 is to project relatively far outwards, it may happen that the paper material of the jacket 2 tears uncontrollably at the lower edge 14. To prevent uncontrolled tearing, as in FIG.
  • the height of the recesses 111 may be different depending on the elasticity of the material on the frame 4, but does not significantly beyond the height range B, so that a sufficiently large height range C remains to seal.
  • the recesses 111 can either be provided already in the blank of the jacket 2 before the semifinished product of the jacket 2 and the bottom 3 is produced, but can just as well be introduced into the finished frame 4 before the expansion.
  • FIGS. 1 to 3 it may be advantageous to the cup 1 an outer sheath according to one of FIGS. 4 to 7 attributable to which surrounds the inner space 5 limiting sheath 2 preferably to form a cavity. So that the stacking of the cup 1 is not impaired, it may be advantageous that the outer contour of the outer shell is within a parallel 15 to the interior 5 limiting jacket 2, wherein the parallel 15 is applied to the expansion 10 of the frame 4. As long as an outer sheath within the space 16 between the parallel 15 and the interior of the fifth limiting jacket 2, the stacking properties of the cup are not affected in any way. The freedom of design is therefore unlimited. In addition, it is possible to provide a common embodiment of the cup 1 with different outer shells, without having to change the first means 7 for holding and the second means 9 for holding. Below are with the help of FIGS. 4 to 7 some possible embodiments for such outer shells described.
  • Each of the cups 1 shown has a heat-insulating outer jacket 417, 517, 617 and 717 which partially surrounds the jacket 2 delimiting the inner space 5 to form a cavity 18.
  • Such cups are also referred to as double-walled insulating cup, in which the located inside the outer shell 417, 517, 617, 717 jacket 2 in conjunction with the bottom 3 can also be referred to as "inner cup”.
  • the first means 7 for holding another cup 1 'of the same kind and the second means 9 for holding are analogous to those in FIG FIG. 1 designed variant, so that can be dispensed with a repeated description.
  • a first means 7 is formed to hold.
  • the outer sheath 417, 517, 617 and 717 is pushed and fixed to the inner space 5 limiting coat 2.
  • the second means 9 is formed for holding. This has the advantage that the second means 9 for holding the pushing on of the outer sheath 417, 517, 617, 717 does not hinder, and that, for example, the dimension Y of the widening 10 can be greater than the inner contour of the outer sheath 417, 517, 617, 717.
  • the outer jacket 417 of in FIG. 4 Cup 1 shown is arranged substantially parallel to the inner space bounding jacket 2. Die Mantel 2 ist mit dem Gepatiuse 2sky.
  • the outer shell 417 has at an upper and at a lower end in each case an inwardly directed curl 419 and 420 and is supported by the curls 419 and 420 on the inner space 5 bounding shell 2 from. It can be provided that the outer jacket 417 is fixed in the region of the curl 419 and / or 420, for example by gluing.
  • the height of the outer jacket 417 may be different as required by the curl 420 'shown in dashed lines.
  • a height of the outer jacket 417 which corresponds to the curl 420 shown, in which the outer shell 417 ends above the widening 10 of the frame 4 and below the bottom 3.
  • the distance E between the outer shell 417 and the Expansion 10 about 1 to 2 mm.
  • Such a height of the outer jacket 417 ensures the accessibility of the frame 4 in the height range B from the outside, even when already pushed on outer jacket 417, so that a shaping of the widening 10 is not hindered by a radially externally supplied tool by the outer jacket 417.
  • the curl 420 is supported in the region of the frame 4 on the inner shell 5, whereby the outer jacket 417 is very stable.
  • the outer jacket 417 also conceals the first means 7 for holding, so that this is not recognizable from the outside.
  • the bead 48 is in contrast to FIG. 1 shaped outwards.
  • the force-absorbing capacity of the means 7 for holding can be increased because the stretched paper material of the bead 48 has a higher stability than the compressed paper material of the bead 8 of FIG FIG. 1 having.
  • FIG. 5 has the interior 5 limiting jacket 2 in the area below the mouth roll 6 on a sudden change in size in the form of a shoulder 21, which is seen from the bottom 3 to the mouth roll 6 represents a sudden cross-sectional widening.
  • the outer sheath 517 is in the area between the mouth roll 6 and the shoulder 21 with the inner space 5 limiting sheath 2, for example, by sealing or gluing, connected.
  • the outer jacket 517 has an inwardly directed curl 520 analogous to the curl 420, which may also be located further up in the position 520 'indicated by dashed lines.
  • An outer jacket 517 ending above the bottom 3 often has a sufficient insulating effect and has the advantage that the material requirement for the outer jacket 517 is reduced.
  • the height position of the curl 520 may alternatively according to the under FIG. 4 described selection criteria and are below.
  • the means 7 for holding is designed here as a rounded rib 58, wherein the rib 58 does not need to be embossed completely encircling, but can very advantageously consist of punctiform impressions in the jacket 2.
  • Deviating from the presentation of FIG. 5 can the cup 1 in the region of the shoulder 21 also be designed differently.
  • An advantageous variant in the region of the shoulder 21 is in FIG. 5A shown greatly enlarged.
  • the area 25 of the shell 2 between the mouth roll 6 and the shoulder 21 runs approximately parallel to the center axis 13.
  • the outer shell 517 can be pushed a little under the mouth roll 6 when pushed onto the inner cup 1, the upper edge portion 26 of the outer shell 517th slightly bruised.
  • the edge region 26 does not continue the conical outer shell 517 uniformly, but instead has a slightly smaller diameter. If the outer sheath 517, as in FIG. 5A , shown with its upper edge a little inserted into the mouth roll 16, the result is a particularly good appearance of the cup 1, since the upper edge of the outer shell 517 is no longer visible. If the outer sheath 517 inserted in an unillustrated embodiment further into the mouth roll 6, so already causes the clamping of the outer sheath 517 by the material of the mouth roll 6 a fixation of the outer sheath 517. For certain applications, the clamping of the outer sheath 517 in the mouth roll 6 as only attachment of the outer jacket 517 be sufficient.
  • FIG. 6 shows a variant of an outer sheath 617, in which the cavity 18 has its greatest thickness in the upper region and increasingly tapers towards the bottom.
  • an inwardly directed curl 619 is provided, which can be supported on the jacket 5 delimiting the inner space 5.
  • the outer sheath 617 can likewise end above the frame 4 or, as shown, end shortly above the widening 10 with a distance E and, for example, be sealed flat there.
  • An alternative shows the FIG. 6A in which the outer jacket 617 likewise does not run parallel to the jacket 2.
  • the outer sheath 617 ' is supported with a curl 620 analogous to the curl 420 on the casing 2.
  • the cup 1 of FIG. 6A has no bead 68.
  • the expansion 10 acts without further means for stacking with another cup 1 'of the same kind together and is based directly on the interior 5 limiting jacket 2 from.
  • an outer sheath 717 is shown, which encloses the inner space 5 limiting sheath 2 closely and substantially rests substantially on the entire surface.
  • Such an outer jacket 717 may be sufficient if the requirements for the insulating effect of the cup 1 are not particularly high.
  • a close-fitting outer sheath 717 improve the stability of the cup 1, since the sheath 2 is supported virtually on its entire height on the outer shell 717.
  • the fixation of the outer jacket 717 is preferably done again by sealing or gluing, the fixation can be done in individual areas or even over the entire area.
  • outward embossings 23 may be provided in the outer jacket 717.
  • the embossings 23 may be design elements for the design of the cup, which identify the contained product, for example in the form of a lettering. However, the embossings 23 can also be used in order to increase the insulating effect of the outer jacket 717 in certain areas, since below the embossments 23 again cavities 18 arise. For example, the embossings 23 can be arranged precisely in the areas on the cup 1 at which the contact points to a hand gripping the cup 1 are located.
  • the dimension Y of the second means 9 is adapted to the dimension X of the first means 7 to hold another cup 1 'of the same kind. If the dimensions X and Y in the cups 1 of FIGS. 4 to 7 with the different outer shells 417, 517, 617 and 717 are identical, all these cups 1 can be stacked in any combination with each other without jamming, since all outer shells 417, 517, 617 and 717 within the space 16 between the parallel 15 and the interior 5 forming jacket 2 lie.
  • the outer side 22 of the outer shells 417, 517, 617, 717 may have different structures.
  • the outer side 22 may, for example, be corrugated, embossed, corrugated or have a foamed coating. It can also be provided to perform the outer sheath 417, 517, 617, for example, corrugated and in addition to provide on the outer side 22 a smooth cover of the wave structure in the form of another shell to further improve the insulating effect of the cup 1.
  • the embodiment of the outer jacket 417 with an upper curl 419 or the attachment of the outer jacket 517 in the region of a shoulder 21 of the shell 2 have the advantage that even in a region just below the mouth roll 6, a very wide cavity 18 between shell 2 and outer shell 417, 517 is created, which has a very high insulation effect.
  • the curl 419 or the shoulder 21 ensure even without additional means, such as foamed layers or corrugated layers within the cavity 18, that the distance between the shell 2 and outer shell 417 and 517, even under pressure, for example, by a cross hand, not reduced and the insulation effect is lost.
  • FIG. 9 are shown in the individual representations A to K in schematic form different design options of the cup 1 in the frame 4.
  • the frame 4 is always formed by three layers of material, namely two layers of material of the shell 2, which surround the wall 31 of the cup-shaped bottom 3 inside and outside.
  • This embodiment is very often advantageous, but is not mandatory to implement the present invention.
  • the variants described below may also be advantageous.
  • FIG. 9C The material of the shell 2 and the wall 31 of the bottom 3 both end at the lower edge 14 and thereby form the footprint.
  • FIG. 9D is the material of the shell 2 turned inside, but without covering the material of the bottom 3 in the region of the wall 31.
  • the joint 24 between the material of the shell 2 and the bottom 3 may be at different heights, for example, exactly at the boundary between the height range B and C. In this case, the material of the bottom 3 is not widened during the formation of the expansion 10. The expansion is introduced only in the double-lying material of the shell 2.
  • the wall 31 of the cup-shaped bottom 3 extends only over the height range C and serves to seal the fillable interior 5.
  • the frame 4 after Figure 9E is analog FIG. 9D trained, however, here the material of the soil in the height range B is turned over to the outside.
  • the material of the shell 2 extends only over the height range C.
  • the inclination angle ⁇ is preferably greater than the inclination angle ⁇ .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Stackable Containers (AREA)
  • Making Paper Articles (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Claims (14)

  1. Gobelet (1) en un matériau de papier avec un espace intérieur remplissable (5), qui est formé par un corps conique (2) et un fond (3), dans lequel le fond (3) est fixé au corps (2) de façon essentiellement étanche au liquide à l'extrémité inférieure de l'espace intérieur (5) avec un rebord (4), dans lequel le corps (2) et/ou le fond (3) dans la région du rebord (4) et/ou le rebord (4) lui-même présente un évasement dirigé vers l'extérieur (10) au moins dans une région le long du pourtour, et en ce qu'un bord inférieur (14) de l'évasement (10) forme une face de pose pour le gobelet (1), caractérisé en ce que le rebord (4) présente un moyen de maintien (9), qui peut coopérer avec un gobelet identique (1') lors d'un empilement du gobelet (1), dans lequel l'évasement (10) forme le moyen de maintien (9), dans lequel un premier moyen de maintien (7) est disposé sur le corps (2) limitant l'espace intérieur (5), qui peut lors de l'empilement du gobelet (1) coopérer avec un deuxième moyen de maintien (9') agencé sur un gobelet identique (1') et dans lequel les dimensions (Y) du deuxième moyen de maintien (9) sont adaptées aux dimensions (X) du premier moyen de maintien (7) d'un autre gobelet (1') de même nature.
  2. Gobelet selon la revendication 1, caractérisé en ce que le rebord (4) - considéré en coupe axiale - présente des angles d'inclinaison différents (β, γ) par rapport à l'axe central (13) du gobelet (1), dans lequel le rebord (4) s'évase dans la région du bord inférieur (14) avec un angle d'inclinaison (β) plus grand.
  3. Gobelet selon la revendication 1 ou 2, caractérisé en ce que la hauteur (B) de l'évasement (10) sur le rebord (4) correspond sensiblement à la moitié de la hauteur (A) du rebord (4).
  4. Gobelet selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le diamètre (Y) entourant l'évasement (10) est plus grand que le diamètre (D) entourant le fond (3).
  5. Gobelet selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier moyen de maintien (7) d'un autre gobelet (1') de même nature est configuré comme une nervure (58) ou une moulure (8; 48; 68; 78), qui est formée dans le corps (2) limitant l'espace intérieur (5) au moins dans une région le long du pourtour.
  6. Gobelet selon l'une quelconque des revendications précédentes, caractérisé en ce que le gobelet (1) présente une enveloppe extérieure (417; 517; 617; 717).
  7. Gobelet selon la revendication 6, caractérisé en ce que le contour extérieur de l'enveloppe extérieure (417; 517; 617; 717) se trouve à l'intérieur d'une parallèle (15) au corps (2) limitant l'espace intérieur (5), qui est tracée à l'évasement (10) du rebord (4).
  8. Gobelet selon la revendication 6 ou 7, caractérisé en ce que l'enveloppe extérieure (417; 517; 617; 717) se termine en dessous du fond (3), et présente en l'occurrence encore une distance (E) de l'évasement (10).
  9. Procédé de fabrication d'un gobelet en un matériau de papier selon l'une quelconque des revendications précédentes, qui se compose d'un corps conique et d'un fond fixé de façon étanche au liquide dans la région du plus petit pourtour du corps au moyen d'un rebord, dans lequel on utilise un demi-produit essentiellement étanche au liquide avec un espace intérieur remplissable, sur lequel le corps et/ou le fond dans la région du rebord et/ou le rebord lui-même est évasé vers l'extérieur au moins dans une région le long du pourtour, caractérisé par les étapes de procédé suivantes:
    - former au moins un premier moyen de maintien d'un autre gobelet de même nature sur le corps limitant l'espace intérieur;
    - former un deuxième moyen de maintien sur le rebord, qui peut coopérer avec un premier moyen de maintien réalisé sur un gobelet identique lors de l'empilement du gobelet.
  10. Procédé selon la revendication 9, caractérisé en ce que l'on utilise un demi-produit, dans lequel le rebord - considéré en coupe axiale - s'étend essentiellement parallèlement à l'axe central du gobelet.
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que l'on chauffe le matériau de papier dans la région du rebord avant et/ou pendant l'évasement.
  12. Procédé selon l'une quelconque des revendications 9 à 11, caractérisé en ce que l'on glisse et on fixe une enveloppe extérieure sur le corps conique limitant l'espace intérieur.
  13. Procédé selon l'une quelconque des revendications 9 à 12 pour fabriquer un gobelet empilable, caractérisé par les étapes de procédé suivantes:
    - former au moins un premier moyen de maintien d'un autre gobelet de même nature sur le corps limitant l'espace intérieur;
    - glisser une enveloppe extérieure sur le corps conique limitant l'espace intérieur;
    - fixer l'enveloppe extérieure sur le corps limitant l'espace intérieur;
    - après la fixation de l'enveloppe extérieure, former un deuxième moyen de maintien sur le rebord, qui peut coopérer avec un premier moyen de maintien formé sur un gobelet identique lors d'un empilement du gobelet.
  14. Procédé selon l'une quelconque des revendications 9 à 13, caractérisé en ce que l'on forme au moins une moulure ou une nervure comme premier moyen de maintien d'un autre gobelet de même nature dans une région le long du pourtour du corps limitant l'espace intérieur.
EP07785961.9A 2006-07-17 2007-07-10 Gobelet en materieaux de papier Active EP2043853B1 (fr)

Applications Claiming Priority (4)

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DE102006034267 2006-07-17
US86041306P 2006-11-21 2006-11-21
DE102007024243A DE102007024243A1 (de) 2006-07-17 2007-05-14 Becher aus einem Papiermaterial
PCT/EP2007/006095 WO2008009372A1 (fr) 2006-07-17 2007-07-10 gobelet en matériau de papier

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EP2043853A1 EP2043853A1 (fr) 2009-04-08
EP2043853B1 true EP2043853B1 (fr) 2017-03-29

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US (2) US8172127B2 (fr)
EP (1) EP2043853B1 (fr)
JP (1) JP5074491B2 (fr)
CA (1) CA2657721C (fr)
DE (1) DE102007024243A1 (fr)
PL (1) PL2043853T3 (fr)
WO (1) WO2008009372A1 (fr)

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US10099840B2 (en) 2018-10-16
JP2009543738A (ja) 2009-12-10
JP5074491B2 (ja) 2012-11-14
CA2657721C (fr) 2014-12-16
US8172127B2 (en) 2012-05-08
US20120190519A1 (en) 2012-07-26
CA2657721A1 (fr) 2008-01-24
WO2008009372A1 (fr) 2008-01-24
US20080023537A1 (en) 2008-01-31
PL2043853T3 (pl) 2017-09-29
EP2043853A1 (fr) 2009-04-08
DE102007024243A1 (de) 2008-01-24

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