EP2043853B1 - Beaker made from a paper material - Google Patents
Beaker made from a paper material Download PDFInfo
- 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
Links
- 239000000463 material Substances 0.000 title claims description 59
- 239000011324 bead Substances 0.000 claims description 24
- 239000011265 semifinished product Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 62
- 239000000123 paper Substances 0.000 description 23
- 230000000694 effects Effects 0.000 description 8
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- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000004049 embossing Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- -1 polyethylene Polymers 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Images
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 ⁇ .
Description
Die Erfindung betrifft einen Becher aus einem Papiermaterial mit einem befüllbaren Innenraum, der durch einen konischen Mantel und einen Boden gebildet wird, wobei der Boden am unteren Ende des Innenraums mit einer Zarge im Wesentlichen flüssigkeitsdicht am Mantel befestigt ist, wobei der Mantel und/oder der Boden im Bereich der Zarge und/oder die Zarge selbst wenigstens im Bereich des Umfangs eine nach außen ragende Aufweitung aufweist und wobei ein unterer Rand der Aufweitung eine Standfläche für den Becher bildet.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.
Die Erfindung betrifft ferner ein Verfahren zum Herstellen eines Bechers aus einem Papiermaterial, der aus einem konischen Mantel und einem im Bereich des geringeren Umfangs des Mantels durch eine Zarge befestigten Boden besteht.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.
Ein Becher dieser Art ist durch die
Bei dem bekannten Becher umschließt der Außenmantel vollständig die Zarge, so dass diese von außen nicht mehr sichtbar ist. Beim Einschlagen und Befestigen des Außenmantels von innen an der Zarge ist deshalb ein Gegenhalten von außen nicht mehr möglich. Der Außenmantel kann nur mit einer sehr geringen Kraft, die die Zarge selbst aufnehmen kann, von innen angedrückt werden Ist die Andruckkraft zu hoch, kann die Zarge reißen, andererseits kann die Befestigung des Außenmantels mangelhaft sein, wenn die Andruckkraft zu gering ist. Bei einem Verbinden des Außenmantels durch Heißsiegeln kann es vorkommen, dass sich die Versiegelung zwischen Boden und dem den Innenraum begrenzenden Mantel wieder löst, da beim Siegeln des nach innen eingeschlagenen Außenmantels kein Gegendruck an der Zarge von außen mehr ausgeübt werden kann.In the known cup, the outer shell completely encloses the frame, so that it is no longer visible from the outside. When driving in and securing the outer jacket from the inside to the frame, therefore, holding back from the outside is no longer possible. 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. When connecting the outer shell by heat sealing, it may happen that the seal between the bottom and the inner space bounding shell dissolves again, since the sealing of the inwardly wrapped outer shell no counterpressure on the frame from the outside can be exercised more.
Aus der US-Patentschrift
Aus der japanischen Patentveröffentlichung
Aus der britischen Offenlegungsschrift
Aus der japanischen Offenlegungsschrift
Bei Bechern aus Papiermaterial ist die Zarge ein sehr wichtiges Element des Bechers. Die Zarge ist notwendig für die Verbindung zwischen dem Mantel und dem Boden. An der Zarge liegen wenigstens zwei Materialschichten in Dickenrichtung aufeinander, nämlich das Material des Bodens und das Material des den Innenraum begrenzenden Mantels. Bevorzugt ist der Boden topfförmig gestaltet, dessen offene Seite der Füllöffnung des Bechers abgewandt ist. Die wenigstens zwei Materialschichten sind also bevorzugt entlang der Wandung des topfförmigen Bodens angeordnet. Es kann zusätzlich vorgesehen sein, dass beispielsweise der Mantel um das Material des Bodens herum eingeschlagen ist, und dass die Zarge aus drei oder mehr Materialschichten besteht. Das Material des Bodens ist mit dem Material des Mantels im Bereich der Zarge verklebt oder versiegelt, um wenigstens für einen gewissen Zeitraum flüssigkeitsdicht zu sein.For cups made of paper material, 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. Preferably, 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. It can additionally be provided that, for example, 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.
Unter dem Begriff "Papiermaterial" aus dem der Boden und der Mantel besteht, können dabei unterschiedliche Materialien verstanden werden, die wenigstens eine Schicht aus Papier, Pappe oder Karton aufweisen. Zusätzlich kann das Material eine oder mehrere Schichten aus Kunststoff und/oder Aluminium aufweisen. Es kann auch vorgesehen sein, dass das Papiermaterial gewachst oder lackiert ist, um eine Beständigkeit gegenüber der in den Innenraum einzufüllenden Flüssigkeit aufzuweisen. Bevorzugt ist das Papiermaterial wenigstens auf der den Innenraum begrenzenden Seite mit einer dünnen Kunststoffschicht, vorzugsweise aus Polyethylen, beschichtet. Im Gegensatz zu reinem Kunststoffmaterial ist die Formbarkeit und insbesondere die Dehnbarkeit von derartigem Papiermaterial eingeschränkt. Bei zu starker Verformung kann das Papiermaterial selbst oder auch eine vorgesehene Beschichtung reißen, so dass die Dichtigkeit beeinträchtigt ist. Bei Bechern aus Papiermaterial ist deshalb die Zarge ein wesentliches Konstruktionsmerkmal, auf das nicht verzichtet werden kann.The term "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. In addition, the material may comprise one or more layers of plastic and / or aluminum. It can also be provided that the paper material is waxed or painted in order to have a resistance to the liquid to be filled into the interior. Preferably, the paper material is at least on the side bounding the interior with a thin plastic layer, preferably made of polyethylene, coated. In contrast to pure plastic material, 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. For cups made of paper material, therefore, the frame is an essential design feature that can not be waived.
Der Erfindung liegt die Aufgabe zu Grunde, einen flexibel einsatzbaren und stapelbaren Becher der eingangs genannten Art bereitzustellen.The invention is based on the object to provide a flexibly deployable and stackable cup of the type mentioned.
Die Aufgabe wird durch einen Becher mit den Merkmalen von Anspruch 1 gelöst. Der Mantel und/oder der Boden im Bereich der Zarge und/oder die Zarge selbst weisen wenigstens in einem Bereich entlang des Umfangs eine nach außen ragende Aufweitung auf, und ein unterer Rand bildet eine Standfläche für den Becher.The object is achieved by a cup having the features of
Die Aufgabe wird auch durch ein Verfahren mit den Merkmalen von Anspruch 9 gelöst. Ein im Wesentlichen flüssigkeitsdichtes Halbzeug mit einem befüllbaren Innenraum wird verwendet, an dem der Mantel und/oder der Boden im Bereich der Zarge und/oder die Zarge selbst wenigstens in einem Bereich entlang des Umfangs nach außen aufgeweitet wird.The object is also achieved by a method having the features of claim 9. 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.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous developments of the invention are specified in the subclaims.
Die Standfläche des Bechers ist durch die Aufweitung vergrößert, auch wenn die Aufweitung beispielsweise nur partiell ist, so dass der Becher eine verbesserte Standfestigkeit aufweist. Die Aufweitung wird dabei nicht oder nicht vollständig durch einen Außenmantel abgedeckt, so dass das Material des Mantels oder des Bodens unmittelbar die Standfläche bildet. Die Zarge kann dadurch in ihrer Dichtigkeit nicht durch die Anbringung des zusätzlichen Materials des Außenmantels beeinträchtigt werden. In bevorzugter Ausgestaltung ist die Aufweitung durchgehend und gleichmäßig entlang des Umfangs geformt. Wenn das Papiermaterial beschichtet ist, ist es vorteilhaft, die Aufweitung nur so groß zu formen, dass die Beschichtung nicht einreißt.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. In a preferred embodiment, 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.
Dadurch dass ein Halbzeug verwendet wird, bei dem der Boden und der Mantel im Bereich der Zarge bereits flüssigkeitsdicht verbunden sind, kann die Aufweitung an der Zarge geformt werden, ohne dass die Dichtigkeit der Zarge beeinträchtigt wird. Es kann vorteilhaft sein, ein Halbzeug zu verwenden, bei dem die Zarge - in einem Axialschnitt gesehen - im Wesentlichen parallel zur Mittelachse des Bechers verläuft, bei dem also im Fall eines runden Becherquerschnitts die Zarge im Wesentlichen zylindrisch verläuft. Es kann auch vorgesehen sein, dass die Aufweitung nur partiell in einem Bereich entlang des Umfangs erfolgt. Durch eine nicht mehr sich konisch verjüngende Zarge oder eine partielle Aufweitung ist eine geringere Dehnung des Papiermaterials erforderlich und die Gefahr von Rissbildung wird verringert. Trotzdem kann die Standfestigkeit des Bechers durch eine vergrößerte Standfläche erhöht werden.The fact that a semi-finished product is used in which the bottom and the jacket are already connected in a liquid-tight manner in the region of the frame, the expansion of the frame can be formed without the tightness of the frame is impaired. It may be advantageous to use a semifinished product, in which the frame runs - as seen in an axial section - substantially parallel to the central axis of the cup, in which therefore in the case of a round cup cross section, the frame extends substantially cylindrical. It can also be provided that the expansion takes place only partially in a region along the circumference. By no longer conically tapered frame or a partial expansion of a lower elongation of the paper material is required and the risk of cracking is reduced. Nevertheless, the stability of the cup can be increased by an increased footprint.
In vorteilhafter Ausgestaltung der Erfindung wird die Zarge nicht auf ihrer gesamten Höhe aufgeweitet. Bevorzugt verbleibt der an den Boden angrenzende Bereich der Zarge in seiner ursprünglichen Form, während der untere Rand der Zarge aufgeweitet wird. Die Höhe der Aufweitung an der Zarge kann dabei in etwa der halben Höhe der Zarge entsprechen. Die Zarge weist dann - in einem Axialschnitt gesehen - unterschiedliche Neigungswinkel zu der Mittelachse
des Bechers auf, wobei sich die Zarge im Bereich des unteren Randes mit einem vergrößerten Neigungswinkel aufweitet. Die Zarge weist zwei unterschiedliche Höhenbereiche auf, die unterschiedliche Funktionen erfüllen. Der obere Höhenbereich dient zur Abdichtung des befüllbaren Innenraums und verbindet den konischen Mantel im Wesentlichen flüssigkeitsdicht mit dem Boden. Im unteren Höhenbereich der Zarge ist das Material des den Innenraum begrenzenden Mantels und/oder die Wandung des Bodens aufgeweitet und bildet mit seinem unteren Rand eine vergrößerte Standfläche für den Becher. In diesem Höhenbereich ist eine flüssigkeitsdichte Verbindung zwischen dem Material des Bodens und dem Material des Mantels nicht mehr unbedingt erforderlich.In an advantageous embodiment of the invention, the frame is not widened over its entire height. Preferably, 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. In the lower height range of the frame, 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. In this height range, a liquid-tight connection between the material of the soil and the material of the shell is no longer essential.
Es kann vorteilhaft sein, dass das Material des Mantels oder des Bodens im Bereich der Zarge - wenigstens im Bereich des unteren Randes - vor und/oder bei dem Aufweiten angewärmt wird. Das Anwärmen kann beispielsweise durch Anblasen der Zarge mit heißer Luft oder durch ein angewärmtes Aufweit-Werkzeug erfolgen. Bevorzugt wird die Temperatur so gewählt, dass eine auf dem Papiermaterial vorhandene Kunststoffschicht ihren Schmelzpunkt noch nicht erreicht, sondern lediglich etwas weicher wird.It may be advantageous for the material of the jacket or of the floor to 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-Aufweit 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.
Es ist vorteilhaft, dass ein Aufweit-Werkzeug wenigstens zwei Elemente aufweist, von denen das eine die Zarge von innen aufweitet, während das zweite als Gegenwerkzeug von außen dagegen hält. Hierdurch kann gewährleistet werden, dass sich auch bei erwärmter Zarge, die flüssigkeitsdichte Verbindung zwischen Mantel und Boden nicht löst. Die beiden Elemente des Aufweit-Werkzeuges können dabei beispielsweise aus radial beweglichen Backen, axial beweglichen Dornen oder aus entlang des Umfangs der Zarge umlaufenden Rollen bestehen.It is advantageous that 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.
Der erfindungsgemäße Becher lässt sich sehr vielseitig einsetzen, da er sowohl ohne Außenmantel als auch mit verschiedenen Außenmänteln eingesetzt werden kann. Bevorzugt ist ein wärmeisolierender Mantel vorgesehen, der den den Innenraum begrenzenden Mantel teilweise unter Bildung eines Hohlraumes umgibt. Der Außenmantel wird dabei bevorzugt auf den den Innenraum begrenzenden konischen Mantel entlang der Mittelachse aufgeschoben und fixiert, bevor die Zarge aufgeweitet wird.The cup of the invention can be used very versatile, since it can be used both without outer sheath and with different outer shells. Preferably, 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.
Die Aufweitung an der Zarge lässt sich sehr vorteilhaft einsetzen, um die Stapeleigenschaften des Bechers zu verbessern. Ein stapelbarer Becher ist beispielsweise durch die
Der bekannte Becher hat den Nachteil, dass die beim Stapeln auftretenden Kräfte, über den den Innenraum begrenzenden Mantel und über den Außenmantel übertragen werden. Die Kräfte, die innerhalb des Bechers von dem ersten Mittel zum Halten an das zweite Mittel zum Halten weitergeleitet werden müssen, werden zuerst durch den den Innenraum begrenzenden Mantel zu der Verbindungsstelle zwischen Innenmantel und Außenmantel übertragen und über diese Verbindungsstelle an den Außenmantel weitergegeben. Im Außenmantel werden die Kräfte dann zu dem als Einrollung ausgebildeten zweiten Mittel zum Halten weitergeleitet und dort an den nächsten Becher übertragen. Hierdurch müssen sowohl der Innenmantel als auch der Außenmantel stabil genug ausgelegt sein, um die auftretenden Kräfte aufnehmen zu können. Außerdem muss auch die Verbindungsstelle zwischen dem Außenmantel und dem Innenmantel auf die maximal auftretenden Kräfte ausgelegt sein.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. In the outer jacket, the forces are then forwarded to the trained as Einrollung second means for holding and transferred there to the next cup. As a result, both the inner shell and the outer jacket must be designed to be stable enough to absorb the forces occurring. In addition, the joint between the outer shell and the inner shell must be designed for the maximum forces occurring.
Die Gestaltungsfreiheit des Bechers nach der
Bei dem Becher gemäß der vorliegenden Erfindung ist vorgesehen, dass an der Zarge ein Mittel zum Halten eines anderen Bechers gleicher Art angeordnet ist, das bei einem Stapeln des Bechers mit einem gleichartigen Becher zusammenwirken kann. Das Mittel zum Halten wird vorteilhafterweise durch die Aufweitung gebildet. Bevorzugt ist vorgesehen, dass an dem den Innenraum begrenzenden Mantel ein erstes Mittel zu Halten angeordnet ist, dass bei einem Stapeln des Bechers mit einem an der Aufweitung eines gleichartigen Bechers angebrachten zweiten Mittel zum Halten zusammenwirken kann.In 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.
Der stapelbare Becher wird bevorzugt durch ein Verfahren mit den folgenden Verfahrensschritten hergestellt:
- Formen wenigstens eines ersten Mittels zum Halten eines anderen Bechers gleicher Art an dem den Innenraum begrenzenden Mantel;
- Formen eines zweiten Mittels zum Halten an der Zarge, das bei einem Stapeln des Bechers mit einem an einem gleichartigen Becher angebrachten ersten Mittel zum Halten zusammenwirken kann.
- Forming at least a first means for holding another cup of the same kind on the casing defining the interior space;
- Forming a second means for holding on the frame, which can cooperate in a stacking of the cup with a mounted on a similar cup first means for holding.
Das zweite Mittel zum Halten ist dabei an dem den Innenraum begrenzenden Mantel oder an dem Boden oder an einer Zarge angeordnet, durch die der den Innenraum begrenzende Mantel mit dem Boden verbunden ist. Jedenfalls ist das zweite Mittel zum Halten an einer Komponente des Bechers angebracht, die mit dem befüllbaren Innenraum in Kontakt steht.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. In any event, the second means for holding is attached to a component of the cup that is in contact with the fillable interior.
Das Formen des ersten und zweiten Mittels zum Halten an einem als Halbzeug vorgefertigten Becher hat den Vorteil, dass die Herstellung des Halbzeugs auf einer herkömmlichen Bechermaschine erfolgen kann, welcher eine Vorrichtung zum Formen dieser Haltemittel nachgeordnet wird.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.
Der erfindungsgemäße Becher hat den Vorteil, dass er auch ohne Vorhandensein eines Außenmantels sicher und stabil gestapelt und ohne Verklemmen auch wieder entstapelt werden kann. Falls vorgesehen ist, dem Becher einen wärmeisolierenden Außenmantel zuzuordnen, so lässt sich dieser weitgehend unabhängig und frei von den beim Becher der
Um ein Verklemmen mehrerer Becher beim Stapeln zu verhindern, sind die Abmessungen des zweiten Mittels zum Halten an die Abmessungen des ersten Mittels zum Halten eines anderen Bechers gleicher Art angepasst. Das erste Mittel zum Halten eines anderen Bechers gleicher Art kann dabei an sich beliebig ausgeformt sein. Wesentlich ist, dass eine Kontur geformt wird, die in axialer Richtung des Bechers wirkende Kräfte, also der Kräfte, die beim Stapeln zwischen zwei Bechern wirken, aufnehmen kann. Das erste Mittel zum Halten ist bevorzugt als eine Sicke oder Rippe ausgestaltet, die wenigstens in einem Bereich entlang des Umfangs in den den Innenraum begrenzenden Mantel eingeformt ist. Die Sicke oder Rippe kann dabei entlang des Umfangs durchgehend oder mit Unterbrechungen gestaltet sein.In order to prevent jamming of several cups during stacking, 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.
Wenn nun in Ausgestaltung der Erfindung vorgesehen ist, dass der Becher einen wärmeisolierenden Außenmantel aufweist, ist dabei die Ausgestaltung des wärmeisolierenden Außenmantels an sich beliebig. Der Außenmantel kann beispielsweise aus einem Kunststoff-Papier- oder Verbundmaterial hergestellt sein. Zur Verbesserung der Isolationswirkung kann der Außenmantel auch gewellt, geriffelt, geprägt oder mit einer aufgeschäumten Schicht versehen sein. Der Außenmantel kann auch mehrschichtig ausgebildet sein, beispielsweise kann eine gewellte Zwischenschicht vorgesehen sein, die von einer glatt darüber gelegten Außenschicht abgedeckt ist. Dadurch, dass der erfindungsgemäße Becher unabhängig vom Außenmantel gestapelt werden kann, lässt sich ein und derselbe Innenbecher in einfacher und nahezu beliebiger Weise mit den unterschiedlichsten Außenmänteln kombinieren. Ohne die Form und Abmaße des Innenbechers bzw. der den befüllbaren Innenraum bildenden Komponenten zu verändern, lassen sich verschiedene Becher mit unterschiedlichem optischen und haptischen Erscheinungsbild schaffen, da das Erscheinungsbild, das der Benutzer des Bechers wahrnimmt, hauptsächlich durch die Gestaltung des Außenmantels bestimmt wird.Now, if it is provided in an embodiment of the invention that the cup has a heat-insulating outer shell, while 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. To improve the insulation effect, 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 fact that the cup according to the invention can be stacked independently of the outer shell, one and the same inner cup can be combined in a simple and almost arbitrary manner with a variety of outer shells. Without changing the shape and dimensions of the inner cup or the components forming the interior of the filling, different cups with different visual and haptic appearance can be created, since the appearance that the user of the cup perceives, mainly determined by the design of the outer shell.
Bei einem Verfahren zum Herstellen eines doppelwandigen Bechers werden erfindungsgemäss folgende Verfahrensschritte ausgeführt:
- Formen wenigstens eines ersten Mittels zum Halten eines anderen Bechers gleicher Art an dem den Innenraum begrenzenden Mantel;
- gegebenenfalls Aufschieben eines Außenmantels auf den den Innenraum begrenzenden konischen Mantel; und
- Fixieren des Außenmantels an dem den Innenraum begrenzenden Mantel;
- Formen eines zweiten Mittels zum Halten an der Zarge, das bei einem Stapeln des Bechers mit einem an einem gleichartigen Becher angebrachten ersten Mittel zum Halten zusammenwirken kann.
- Forming at least a first means for holding another cup of the same kind on the casing defining the interior space;
- optionally pushing an outer jacket onto the conical jacket delimiting the inner space; and
- Fixing the outer shell to the inner space bounding shell;
- Forming a second means for holding on the frame, which can cooperate in a stacking of the cup with a mounted on a similar cup first means for holding.
Das Fixieren des Außenmantels an dem Innenbecher kann dabei beispielsweise durch Siegeln oder Leimen geschehen. Es bewirkt eine sichere Verbindung zwischen dem Außenmantel und dem den Innenraum begrenzenden Mantel, so dass ein Verrutschen des Außenmantels sicher verhindert wird, auch wenn der Außenmantel nur eine geringe Höhe hat.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.
Um ein gutes äußeres Erscheinungsbild des Bechers zu erreichen, ist es vorteilhaft, dass der Außenmantel unterhalb des ersten Mittels zum Halten eines anderen Bechers gleicher Art oder sogar unterhalb des Bodens endet. Das an dem Innenmantel angebrachte erste Mittel zum Halten wird dadurch von dem Außenmantel überdeckt und ist von außen nicht mehr sichtbar. Des Weiteren ist es vorteilhaft, dass der Außenmantel oberhalb der Aufweitung der Zarge endet. Bevorzugt wird die Aufweitung an der Zarge durch ein Zusammenwirken eines außerhalb und innerhalb der Zarge angeordneten Werkzeuges erfolgen, ohne dass der bereits auf den den Innenraum begrenzenden Mantel aufgeschobene Außenmantel das Formen der Aufweitung behindert. Die Aufweitung lässt sich dadurch sehr präzise formen. Damit unterhalb des Außenmantels Raum für das Ansetzen eines Werkzeuges verbleibt, ist zwischen dem Außenmantel und der Aufweitung bevorzugt ein Abstand von mehr als 1 Millimeter, insbesondere von mehr als 2 mm, vorgesehen.In order to achieve a good external appearance of the cup, it is advantageous that 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. Furthermore, it is advantageous that the outer shell ends above the expansion of the frame. Preferably, 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.
Die Aufweitung ist vorteilhafterweise so weit nach außen aufgeweitet, dass eine an dem unteren Rand der Aufweitung angelegte Parallele zu dem den Innenraum begrenzenden Mantel mit einem gewissen Abstand außerhalb des den Innenraum begrenzenden Mantels verläuft. Damit ein vorgesehener Außenmantel das Stapeln des Bechers nicht behindert, ist es vorteilhaft, dass sich die Außenkontur des Außenmantels innerhalb der Parallelen zu dem den Innenraum begrenzenden Mantel befindet, die an der Aufweitung der Zarge angelegt wird.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. In order for an intended outer jacket does not hinder the stacking of the cup, it is advantageous that 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.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen und der nachfolgenden Beschreibung einiger Ausführungsbeispiele im Zusammenhang mit den Figuren. Einzelmerkmale der unterschiedlichen dargestellten und beschriebenen Ausführungsformen lassen sich dabei in beliebiger Weise kombinieren, ohne den Rahmen der Erfindung zu überschreiten.Further advantages and features of the invention will become apparent from the claims and the following description of some embodiments in conjunction with the figures. Individual features of the different embodiments shown and described can be combined in any way, without exceeding the scope of the invention.
Es zeigen:
-
einen erfindungsgemäßen Becher im Längsschnitt,Figur 1 -
eine Ansicht ähnlichFigur 2Figur 1 auf zwei gestapelte Becher, -
eine entlang der Schnittfläche III-Figur 3III der Figur 2 geschnittene Ansicht auf eine mit mehreren partiellen Aufweitungen versehene Zarge, -
Figuren 4bis 7Ansichten ähnlich Figur 1 auf teilweise dargestellte Becher unterschiedlicher Ausgestaltung, bei denen verschiedene Außenmäntel vorgesehen sind, -
Figur 8 einen Längsschnitt ähnlichFigur 1 auf eine mit mehreren partiellen Aufweitungen und dazwischenliegenden Aussparungen versehene Zarge, -
Figuren 9 A bis K schematisch und nur teilweise dargestellte Längsschnitte auf unterschiedliche Ausgestaltungsformen im Bereich der Zarge von erfindungsgemäßen Bechern.
-
FIG. 1 a cup according to the invention in longitudinal section, -
FIG. 2 a view similarFIG. 1 on two stacked cups, -
FIG. 3 one along the section surface III-III ofFIG. 2 sectioned view of a frame provided with several partial widenings, -
FIGS. 4 to 7 Similar viewsFIG. 1 partly illustrated cups of different design, in which different outer shells are provided, -
FIG. 8 similar to a longitudinal sectionFIG. 1 on a frame provided with several partial widenings and intermediate recesses, -
FIGS. 9A to K schematically and only partially illustrated longitudinal sections on different embodiments in the frame of cups of the invention.
Der in
Die Eigenschaft "konisch" des Mantels 2 ist dabei so zu verstehen, dass sich der Mantel 2 in dem in
Der Mantel 2 kann im Querschnitt beispielsweise kreisrund, oval oder auch rechteckig mit abgerundeten Ecken sein. Der Becher 1 hat im Falle eines runden Querschnitts des konischen Mantels 2 eine kegelstumpfähnliche Form, während er im Falle eines rechteckigen Querschnitts des konischen Mantels 2 eine eher pyramidenstumpfartige Form aufweist.The
Die Zarge 4 weist wenigstens in einem Bereich entlang ihres Umfanges eine nach außen ragende Aufweitung 10 auf. Ein unterer Rand 14 der Aufweitung 10 an der Zarge 4 bildet eine Standfläche für den Becher 1. Der Becher 1 steht bei Gebrauch auf seiner Standfläche, die durch die Aufweitung 10 vergrößert ist. Dadurch ist ein Umkippen des Bechers 1 erschwert. Die Aufweitung 10 ist bevorzugt entlang des Umfangs der Zarge 4 umlaufend gestaltet.The
Die nach außenragende Aufweitung 10 bildet auch ein Mittel 9 zum Halten eines anderen Bechers 1' gleicher Art, das bei einem Stapeln des Bechers 1 mit einem gleichartigen Becher 1' zusammenwirken kann. Das Stapeln des Bechers 1 in einem gleichartigen Becher 1' ist in
Bevorzugt weist der den Innenraum 5 begrenzende Mantel 2 wenigstens ein erstes Mittel 7 zum Halten eines anderen Bechers 1 gleicher Art auf, das an sich beliebig geformt sein kann. Wichtig ist, dass das erste Mittel 7 zum Halten wenigstens eine Kontur aufweist, die in Richtung der Mittelachse 13 des Bechers 1 wirkende Kräfte, also Kräfte, die beim Stapeln zwischen zwei Bechern wirken, aufnehmen kann. Das erste Mittel 7 zum Halten kann beispielsweise durch eine Rippe oder Sicke 8 gebildet werden, die in den Innenraum des Bechers 1 hineinragt. An der Zarge 4, an der der den Innenraum 5 begrenzende Mantel 2 um den topfförmig tiefgezogenen Boden 3 herumgebördelt und flüssigkeitsdicht versiegelt ist, ist das genannte zweite Mittel 9 in Form der Aufweitung 10 angeordnet.Preferably, the
Die Abmessung Y des zweiten Mittels 9 zum Halten ist an die Abmessung X des ersten Mittels 7 zum Halten des anderen Bechers 1' gleicher Art angepasst. Im Falle eines kreisrunden Querschnitts des Bechers 1 entspricht die Abmessung X des ersten Mittels 7 zum Halten dem Innendurchmesser des Mantels 2 oberhalb der Sicke 8. Die Abmessung Y des zweiten Mittels 9 zum Halten entspricht dem größten Außendurchmesser der Aufweitung 10 an der Zarge, also dem Durchmesser, der die Aufweitung 10 umschließt. Die Anpassung der Abmessungen X und Y erfolgt vorteilhafterweise derart, dass die Abmessung Y etwas kleiner oder maximal gleich groß wie die Abmessung X gewählt wird.The dimension Y of the second means 9 for holding is adapted to the dimension X of the
Das Zusammenwirken des ersten Mittels 7 und des zweiten Mittels 9 zum Halten wird an den in
Um die Dichtigkeit der Zarge 4 beim Formen der Aufweitung 10 nicht zu beeinträchtigen, ist es vorteilhaft, wenn die Höhe B der Aufweitung 10 - wie in
Der die Aufweitung 10 umschließende Durchmesser Y ist dabei bevorzugt größer als der Durchmesser D, der den mit dem Innenraum 5 in Kontakt stehenden Bereich des Bodens 3 umschließt. Damit ein effektives Stapeln möglich ist und die Stapelhöhe nicht unnötig hoch wird, ist es vorteilhaft, wenn das an dem den Innenraum 5 begrenzenden Mantel 2 angeordnete Mittel 7 zum Halten nicht höher oberhalb des Bodens 3 als ein Drittel der Höhe A des Innenraums 5 angeordnet ist. Selbst wenn auf das Mittel 7 verzichtet wird und sich die Aufweitung 10 unmittelbar auf dem konischen Bereich des Mantels 2 abstützt, ist der die Aufweitung 10 umschließende Durchmesser Y bevorzugt kleiner als ein die Innenkontur des Mantels 2 umschließender Durchmesser in einer Höhe oberhalb des Bodens 3 von etwa einem Drittel der Höhe A.The diameter Y enclosing the widening 10 is preferably larger than the diameter D enclosing the region of the
Ein Höhenbereich C ohne Aufweitung, bei dem ein Teil der Zarge 4 in seiner ursprünglichen Form verbleibt und nicht aufgeweitet wird, ist insbesondere für das erfindungsgemäße Verfahren zum Herstellen eines stapelbaren Bechers 1 wichtig, bei dem ein Halbzeug mit einem befüllbaren Innenraum 5 verwendet wird, das aus dem konischen Mantel 2 und dem darin bereits flüssigkeitsdicht befestigten Boden 3 besteht. Das Halbzeug weist also eine Zarge 4 auf, die jedoch noch keine Aufweitung 10 enthält. An dem Halbzeug wird die Sicke 8 als erstes Mittel 7 zum Halten und die Aufweitung 10 als zweites Mittel 9 zum Halten geformt. Dieses Verfahren hat den Vorteil, dass das Halbzeug auf einer herkömmlichen Bechermaschine hergestellt werden kann. Im Anschluss an diese herkömmliche Bechermaschine wird das Halbzeug dann einer Vorrichtung zugeführt, die das erste Mittel 7 zum Halten und das zweite Mittel 9 zum Halten an das Halbzeug anformt und den stapelbaren Becher 1 fertigstellt. Durch den unverformt bleibenden Höhenbereich C wird die Dichtigkeit der Zarge 4 nicht beeinträchtigt.A height range C without expansion, in which a part of the
Die Rippe oder Sicke 8 kann durch Formwerkzeuge geprägt oder gerollt werden, die dem Mantel 2 in axialer oder radialer Richtung des Bechers 1 zugestellt werden. Die Aufweitung 10 an der Zarge 4 kann beispielsweise durch einen kegelförmigen Dorn geformt werden, der der Zarge 4 von der Unterseite her zugestellt wird. Gegebenenfalls kann die Zarge 4 zum Formen der Aufweitung 10 erwärmt werden. Da ein Formwerkzeug, das eine Gleitbewegung relativ zu der Oberfläche der Zarge 4 ausführt, sehr leicht zu einer Faltenbildung führen kann, kann es auch vorteilhaft sein, die Aufweitung 10 mittels eines Rollwerkzeuges oder eines sich radial aufspreizenden Werkzeuges zu formen. Es kann dabei vorteilhaft sein, dem Außenumfang der Zarge 4 ein entsprechend geformtes Gegenwerkzeug zuzustellen, um die Formung der Aufweitung 10 zu unterstützen.The rib or bead 8 can be embossed or rolled by molding tools which are delivered to the
In
Es sind stattdessen vier Aufweitungen 10 gleichmäßig am Umfang verteilt, zwischen denen jeweils ein Bereich 11 ohne Aufweitung vorgesehen ist, der im Wesentlichen der ursprünglichen Kontur der Zarge 4 entspricht. In Verbindung mit einer am gesamten Umfang umlaufenden Sicke 8 werden beim Stapeln des Bechers 1 in einem gleichartigen Becher 1' Luftdurchlässe 12 zwischen dem Mantel 2' bzw. der Sicke 8' des Bechers 1' und den nicht aufgeweiteten Bereichen 11 des Bechers 1 gebildet, die das Entstapeln der Becher erleichtern können. Durch die Luftdurchlässe 12 kann beim Herausnehmen des Bechers 1 aus dem Becher 1' Luft aus der Umgebung in den unter dem Boden 3 des Bechers 1 befindlichen Bereich des Innenraums 5' des Bechers 1' einströmen, so dass sich dort kein Unterdruck bilden kann, der der Entnahmebewegung des Bechers 1 entgegenwirkt.Instead, four
In weiterer Ausgestaltung der partiellen Aufweitung 10 der
Obwohl es in den
Die in den
Bei der Herstellung eines doppelwandigen Bechers 1 nach den
Der Außenmantel 417 des in
In
Abweichend zur Darstellung der
In
Auch wenn die Sicke 48, 58 des ersten Mittels 7 zum Halten bei den Bechern der
Insbesondere die Ausgestaltung des Außenmantels 417 mit einer oberen Einrollung 419 oder die Befestigung des Außenmantels 517 im Bereich einer Schulter 21 des Mantels 2 haben den Vorteil, dass auch schon in einem Bereich dicht unterhalb der Mundrolle 6 ein sehr breiter Hohlraum 18 zwischen Mantel 2 und Außenmantel 417, 517 entsteht, der eine sehr hohe Isolationswirkung aufweist. Die Einrollung 419 oder die Schulter 21 gewährleisten auch ohne zusätzliche Mittel, wie beispielsweise aufgeschäumte Schichten oder Wellpappe-Schichten innerhalb des Hohlraumes 18, dass sich der Abstand zwischen Mantel 2 und Außenmantel 417 bzw. 517 auch unter Druckbelastung, beispielsweise durch eine greifende Hand, nicht verringert und die Isolationswirkung verloren geht.In particular, the embodiment of the
Es sei noch ausdrücklich darauf hingewiesen, dass die unterschiedlichen Ausgestaltungen der Außenmäntel 417, 517, 617 und 717 und anderer Gestaltungsmittel des Bechers 1 wie der Sicke 8, 48, 58, 68, 78 oder der Schulter 21 je nach Bedarf beliebig miteinander kombiniert werden können, und nicht auf die dargestellten Varianten beschränkt sind.It should be expressly understood that the different embodiments of the
In
In
In den
Wenn das Material des Mantels 2 bzw. des Bodens 3 stabil genug ist, kann auf das in den
In den
Claims (14)
- Cup (1) made of a paper material and having a fillable interior (5), which interior is formed by a conical sleeve (2) and a bottom (3), wherein the bottom (3) is attached at the lower end of the interior (5) to the sleeve (2) by means of a skirt (4) in an essentially liquid-tight way, wherein the sleeve (2) and/or the bottom (3) in the area of the skirt (4) and/or the skirt (4) itself comprise at least in an area along the circumference an outwardly projecting widening (10), and that a lower edge (14) of the widening (10) forms a standing surface for the cup (1), characterized in that the skirt (4) comprises a means (9) for holding which can interact with a similar cup (1') when the cup (1) is stacked, wherein the widening (10) forms the means (9) for holding, wherein a first means (7) for holding is arranged on the sleeve (2) defining the interior (5), which means (7) can interact with a second means (9') for holding applied to a similar cup (1') when the cup (1) is stacked, and wherein the dimensions (Y) of the second means (9) for holding are adapted to the dimensions (X) of the first means (7) for holding another cup (1') of the same type.
- Cup according to claim 1, characterized in that the skirt (4) - as seen in axial section - has varying angles of inclination (ß, γ) to the middle axis (13) of the cup (1), wherein the skirt (4) widens in the area of the lower edge (14) with an increased angle of inclination (ß).
- Cup according to claim 1 or 2, characterized in that the height (B) of the widening (10) at the skirt (4) corresponds to approximately half the height (A) of the skirt (4).
- Cup according to any one of the claims 1 to 3, characterized in that the diameter (Y) around the widening (10) is larger than the diameter (D) around the bottom (3).
- Cup according to any one of the preceding claims, characterized in that the first means (7) for holding another cup (1') of the same type is designed as a rib (58) or a bead (8; 48; 68; 78), which are formed into at least one area along the circumference of the sleeve (2) defining the interior (5).
- Cup according to any one of the preceding claims, characterized in that the cup (1) comprises an outer sleeve (417; 517; 617; 717).
- Cup according to claim 6, characterized in that the outer contour of the outer sleeve (417; 517; 617; 717) is located within a parallel (15) to the sleeve (2) defining the interior (5), which parallel (15) is positioned on the widening (10) of the skirt (4).
- Cup according to claim 6 or 7, characterized in that the outer sleeve (417; 517; 617; 717) ends below the bottom (3) and hereby still has a distance (E) from the widening (10).
- Method for producing a cup from a paper material according to any one of the preceding claims, which consists of a conical sleeve and a bottom attached in a liquid-tight manner in the area of the lesser circumference of the sleeve by means of a skirt, wherein an essentially liquid-tight semi-finished product having a fillable interior is used, on which the sleeve and/or the bottom in the area of the skirt and/or the skirt itself is widened outwards at least in one area along the circumference, characterized by the following method steps:- forming at least a first means for holding another cup of the same type on the interior-defining sleeve;- forming of a second means for holding on the skirt, which second holding means can interact with a first holding means applied to a similar cup when the cup is stacked.
- Method according to claim 9, characterized in that a semi-finished product is used, in which the skirt - as seen in axial section - extends essentially in parallel to the middle axis of the cup.
- Method according to claim 9 or 10, characterized in that the paper material is warmed up in the area of the skirt before and/or during the widening procedure.
- Method according to any of claims 9 to 11, characterized in that an outer sleeve is slid onto the conical sleeve defining the interior and is fixed thereto.
- Method according to any of claims 9 to 12 for producing a stackable cup, characterized by the following method steps:- forming of at least one first means for holding another cup of the same type on the interior-defining sleeve;- sliding on of an outer sleeve over the interior-defining conical sleeve;- fixing the outer sleeve to the interior-defining sleeve;- subsequent to the fixing of the outer sleeve, forming of a second means for holding at the skirt, which second holding means can interact with a first holding means applied to a similar cup when the cup is stacked.
- Method according to any of claims 9 to 13, characterized in that at least one bead or rib is formed in an area along the circumference of the interior-defining sleeve as a first means for holding another cup of the same type.
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US86041306P | 2006-11-21 | 2006-11-21 | |
DE102007024243A DE102007024243A1 (en) | 2006-07-17 | 2007-05-14 | Paper drinking cup has conical sidewalls converging to base and diverging for clip-fit paper base |
PCT/EP2007/006095 WO2008009372A1 (en) | 2006-07-17 | 2007-07-10 | Beaker made from a paper material |
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EP2043853B1 true EP2043853B1 (en) | 2017-03-29 |
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DE60102661T2 (en) | 2001-01-30 | 2004-08-19 | Seda S.P.A. | Cardboard containers for beverages and processes therefor |
BRPI0601188B1 (en) | 2005-04-15 | 2018-06-26 | Seda S.P.A. | ISOLATED CONTAINER; METHOD OF MANUFACTURING THE SAME AND APPARATUS FOR MANUFACTURING |
DE202005014177U1 (en) | 2005-09-08 | 2005-11-17 | Seda S.P.A., Arzano | Double-walled beaker comprises an inner wall formed by an inner beaker which is made of a fluid-tight plastic material, and is releasably inserted into an outer beaker forming the outer wall |
DE202005014739U1 (en) * | 2005-09-19 | 2007-02-08 | Seda S.P.A., Arzano | container |
DE202005014738U1 (en) * | 2005-09-19 | 2007-02-08 | Seda S.P.A., Arzano | Container and cut |
SI1785370T2 (en) | 2005-11-11 | 2014-05-30 | Seda S.P.A. | Insulated cup |
EP1785265A1 (en) | 2005-11-14 | 2007-05-16 | SEDA S.p.A. | Device for producing a stacking projection on a container wall and container with same |
DE202006018406U1 (en) | 2006-12-05 | 2008-04-10 | Seda S.P.A. | packaging |
PL2008949T3 (en) * | 2007-06-29 | 2009-10-30 | Ernest Jenner | Beaker with a compartment in the shape of an inverted cup |
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- 2007-07-10 JP JP2009519827A patent/JP5074491B2/en not_active Expired - Fee Related
- 2007-07-10 WO PCT/EP2007/006095 patent/WO2008009372A1/en active Application Filing
- 2007-07-10 CA CA2657721A patent/CA2657721C/en active Active
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2012
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JP2003128038A (en) * | 2001-10-10 | 2003-05-08 | Churu Yan | Paper cup with extension part |
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CA2657721A1 (en) | 2008-01-24 |
US8172127B2 (en) | 2012-05-08 |
PL2043853T3 (en) | 2017-09-29 |
EP2043853A1 (en) | 2009-04-08 |
DE102007024243A1 (en) | 2008-01-24 |
JP5074491B2 (en) | 2012-11-14 |
US10099840B2 (en) | 2018-10-16 |
US20120190519A1 (en) | 2012-07-26 |
JP2009543738A (en) | 2009-12-10 |
CA2657721C (en) | 2014-12-16 |
US20080023537A1 (en) | 2008-01-31 |
WO2008009372A1 (en) | 2008-01-24 |
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