EP0381978A2 - Boîte circulaire destinée à être expédiée vide et son procédé de fabrication - Google Patents

Boîte circulaire destinée à être expédiée vide et son procédé de fabrication Download PDF

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Publication number
EP0381978A2
EP0381978A2 EP90101180A EP90101180A EP0381978A2 EP 0381978 A2 EP0381978 A2 EP 0381978A2 EP 90101180 A EP90101180 A EP 90101180A EP 90101180 A EP90101180 A EP 90101180A EP 0381978 A2 EP0381978 A2 EP 0381978A2
Authority
EP
European Patent Office
Prior art keywords
jacket wall
edge
cardboard
wall
round box
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.)
Withdrawn
Application number
EP90101180A
Other languages
German (de)
English (en)
Other versions
EP0381978A3 (fr
Inventor
Thorsten Seufert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0381978A2 publication Critical patent/EP0381978A2/fr
Publication of EP0381978A3 publication Critical patent/EP0381978A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/54—Inspection openings or windows
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/901—Rigid container
    • Y10S493/905—Rigid container having window

Definitions

  • the invention relates to a round box intended for shipping in an empty state with a jacket wall and at least one sealing wall which is tightly and firmly inserted into the jacket wall at an angle to the jacket wall, in which the jacket wall consists at least partially of a transparent film part with a thickness of 130 to 500 ⁇ m exists.
  • Round boxes are made either of cardboard or cardboard or plastic film in different sizes and diameters / height ratios. They consist of a cylindrical or slightly conical jacket and a circular or oval base used and fastened in different ways. As a rule, the upper opening can be closed by a cover that can be fitted or inserted.
  • Round boxes made of cardboard or cardboard can be very stable due to the material properties and depending on the material thickness, and can retain their shape even under considerable internal stress due to packaged or filled goods. However, they do not allow the goods packed or filled into them to be viewed without further ado because their cylindrical jacket is opaque. The contents of the can can can only be viewed from above after the lid has been removed. Cans made of cardboard or cardboard can be printed and / or laminated on the outer surface of the cylindrical jacket, but only an indirect information about the condition and the appearance of the can contents can be gathered from such an external design of the circular can. But especially when packaging sensitive goods, especially food, it is forbidden to open the can for reasons of possible damage or impairment of hygiene.
  • round cans entirely from clear plastic films.
  • these round cans are generally undesirably flexible and have little dimensional stability, especially when they are filled with heavy objects.
  • a look at the filled goods without opening the can of several they do not offer sufficient protection for heavy and / or sensitive articles.
  • the bottom is only loosely placed on the inwardly rolled lower edge of the jacket wall, so that there is a marked weakening at this point and there is a risk of dust penetration.
  • a gas- and liquid-tight can packaging is known, which, however, should only be dispatched when filled, ie with content.
  • a window in the form of a transparent plastic film is inserted into the jacket wall, in such a way that the plastic film abuts the core material of the remaining jacket wall.
  • the cladding part abutting the transparent film must have multiple layers, ie be made of composite material, the so-called core material being embedded between an inner and an outer cover, which is the plastic film butting the core material overlap or cover at least in their edge area.
  • the well-known can packaging is nothing more than an expensive replacement for the well-known tin can, and it is not suitable for inexpensive applications in which absolute tightness against gases and liquids is not essential, but where the focus is on shipping when empty.
  • a non-generic container in which a window molded from clear plastic is inserted into a tin body made of sheet metal.
  • the window For the purpose of connecting this window to the window cutout in the can body, the window itself is provided with a circumferential rib which, after thermal softening, is flanged around the edge of the window or glued to it.
  • the manufacturing process nor the packaging itself is suitable for mass application.
  • a liquid container is again known, in which windows are inserted, preferably on diametrically opposite sides.
  • the windows are either inserted with the interposition of special frames made of sheet metal or plastic, or a laminate must be used in which a transparent film is embedded between two outer films which have congruent window cutouts. Since the foil window in the latter case represents a pronounced weak point and has no self-supporting properties, the construction principle described can also be used only for relatively small windows.
  • DE-U-7 535 138 discloses a can in a cylindrical shape.
  • the cardboard part is constructed in two layers, with congruent windows being arranged in the two layers and the film being arranged between the cardboard layers.
  • the film forms a pronounced weak point in the rest of the composite, so that the window size is also relatively small.
  • the film window is by no means mechanically equivalent to the cardboard part and, moreover, does not allow a sufficient view of the dark inside of the can.
  • DE-C 517 132 discloses a vessel with a viewing opening which is initially closed by cardboard.
  • the window outline is only defined by a perforation through which the window can subsequently be opened (when in use).
  • the packaging has "opened". From the fact that the "shutter" is first attached, it can be seen that the strength properties of the window are very limited.
  • DE-U-1 881 473 discloses a non-generic folding box with a film window.
  • the window film is said to consist of cellular glass, for example. If the field of vision extends over an entire side of the folding box, the field of vision can expediently be divided by webs. These webs of the cardboard casing separate the overall field of view into several individual fields of view and at the same time have the effect that a considerable reduction in the strength of the folding box is avoided.
  • the invention is therefore based on the object of specifying a circular box of the type described above, which can be printed on part of its jacket wall in an appealing form, has good inherent rigidity, so that it can be shipped even when empty, and an insight into the interior of the container enables.
  • the individual features penetrate and promote each other in the sense of creating an extraordinarily stable and yet inexpensive packaging container that can be printed on the outside in the area of the jacket wall and has a large, clearly transparent inspection opening.
  • the round box made of composite construction already has excellent rigidity due to the curvature of the jacket wall, which is also due to the fixed closure wall.
  • This closure wall can form both the lid and the bottom of the round box, because it is a question of the point of view for which position the round box is intended.
  • the cover that is put on later in the position of use can also form the footprint of the round box, i.e. their "bottom".
  • the round box according to the invention also differs from those round boxes which are merely provided with a label made of thin paper which is stuck on or inserted.
  • By the specified lower limit of the Weight per unit area also gives the cardboard part its own rigidity.
  • Solvent-free printing inks can be used to print on the cardboard part.
  • the lower edge of the jacket wall is formed exclusively from the cardboard material, not only is a corresponding material saving achieved on the film part, but the lower edge consisting exclusively of the cardboard material can very easily be further processed and connected to the closure wall.
  • the cardboard material can be folded, folded or flanged much more quickly and easily on machines provided for this purpose, but especially without the heating required for plastic films, in order to enable the preparations for inserting and fastening the closure wall (e.g. the floor).
  • the entire, assembled jacket wall has essentially the same mechanical strength, so that a preferred denting or buckling does not occur in the region of a part of the jacket wall.
  • Characteristic c ensures that the connection point between the film part and the cardboard part causes stiffening because there is a much greater wall thickness at this point, which is more than that has twice the strength against denting. This effect is particularly advantageous if the connection point runs around at least part of the round box in the circumferential direction, as is the case with the exemplary embodiment according to FIGS. 3 and 4.
  • the fixed connection between the cardboard part and the film part can be made by gluing, welding or other suitable measures.
  • Yielding is also understood to mean a connection technique using ultrasound. In any case, the overlap and connection point is a stiffening element for the round box, both for the empty and for the filled state of the round box. The round box does not get its special strength from the firm connection of the fuselage with the bottom and lid.
  • the packaging container is designed in such a way that the round box is so slightly conically expanded in the direction of its opening that several round boxes can be inserted into one another and stacked.
  • the cutting of the jacket wall has the shape of the jacket of a truncated cone, that is to say a circular ring sector. Placing several round cans in one not only saves considerable space - for transport when empty - the cans also stiffen each other to prevent them from being pressed in and compressed.
  • the cardboard material of the cardboard part preferably has a weight per unit area of between 150 and 1000 g / m 2, the lower limit of this range not to be undercut in the sense of the inventive concept.
  • the actual weight per unit area depends on the volume of the circular can, whereby the larger weight of the can also means the larger weight per unit area.
  • the cardboard part can also be made of corrugated cardboard, which is known to have a very high strength.
  • transparent films with a thickness between 130 and 500 ⁇ m are used with particular advantage for the film part.
  • the film is particularly advantageously a single-layer, so-called hard film, for example made of PVC, which is at least low in plasticizer, but with particular advantage is completely free of plasticizer.
  • the invention also relates to a method for producing a packaging container according to claim 1.
  • a method for producing a packaging container according to claim 1 is characterized in that prefabricated individual blanks from at least one cardboard part and at least one film part in the region of the at least one cut edge of the later insight into lying flat and each other partially overlapping state firmly connected to one another to form a composite blank, subsequently separating the jacket wall from the composite blank and finally rolling the jacket wall blank into the jacket wall and connecting them together along a seam line.
  • the subject matter of the invention differs in a very particularly advantageous manner from the prior art, in which the combination of the cardboard part or another material for the can body and the transparent "window" can only be produced on the already largely completed can body , as is the case, for example, with the object according to FR-B 1 137 975 and the majority of the exemplary embodiments according to US-A 2 172 864, in which the bond between the window and the opaque part of the can body is no longer deformable.
  • DE-U 87 11 169 specifies as the manufacturing method for the fuselage that the composite material is processed either from blanks or in a winding process to form the fuselage, but as a rule must be pressed into the desired shape. This effort must be driven because this well-known hull can should be gas and liquid tight, but above all should have the appearance of a conventional tin.
  • the circular box 1 shown in Figures 1 and 2 which is weakly conical towards its opening 2, consists of a jacket wall 3, which is wound around a fictitious axis AA, a closure wall running radially or at right angles to this axis, the in the present case is designed as a base 4, and a cover 5 with a frame 6, by means of which the cover, over the upper edge of the can, can be placed onto the jacket wall.
  • the jacket wall 3 consists of a cardboard part 7 which is continuous over the full height of the circular box 1 and which is clearly transparent Foil part 8 is firmly connected.
  • the cardboard part and the film part are firmly and inseparably connected to one another in a U-shaped overlap region 9, specifically by gluing and / or welding.
  • the area 10 that does not overlap one another forms the so-called viewing opening or the “window”.
  • the U-shaped cut edge 11 of the cardboard part 7 delimiting the viewing opening extends up to the circular edge 13 of the jacket wall 3 forming the opening 2.
  • the film part 1 is also delimited by cut edges 14, which are however covered by the cardboard part 7. Between the cut edges 11 and 14 is the overlap region 9 stiffening the jacket wall.
  • the film part 8 starting from the upper edge 13, only extends over approximately half the height and half the circumference of the jacket wall, that is to say makes up about a quarter of the surface of the jacket wall 3. Nevertheless, the film part 8 does not represent a weakened zone, since it is just as resilient as the cardboard part 7, with mutual stiffening occurring in the overlap region 9.
  • the cardboard part 7 can be printed in an excellent manner with all conventional printing processes, so that a particularly valuable impression can be produced optically. Mind you, this is possible without the round box according to the invention being provided with a label.
  • the jacket wall 3 also has a lower edge 15 in which the bottom 4 is inserted. Possible types of fastening of the bottom 4 in the jacket wall 3 illustrated in detail with reference to FIGS. 8, 9 and 10.
  • the jacket wall 3 in the region of its lower edge 15, ie at the connection point with the bottom 4, consists exclusively of the material of the cardboard part 7.
  • the film part 8 does not therefore reach the area of the connection with the bottom 4.
  • the inevitable Interface 16 of the jacket wall is located on the side of the circular box facing away from the film part 8.
  • the cardboard part 7 is not designed to be continuous over the entire height of the jacket wall. Rather, the cardboard part 17 has a cutting edge 21 which delimits the viewing opening and which is closed on the circumference of the jacket wall 3.
  • the cutting edge 21 can lie in a horizontal radial plane, so that an optical impression is created, as can be seen in FIG. 1.
  • the film part has a complementary cut, that is to say the jacket wall 3 in the region of its lower edge 15 again consists exclusively of the material of the cardboard part 17.
  • the jacket wall 3 lies in a cylindrical or conical surface, it already has considerable rigidity against compressive forces which could occur in the vertical direction. It also has sufficient rigidity against buckling in the horizontal direction.
  • the stiffening of the cardboard part 17 and the film part 18 in the overlap region 19 also leads to an additional stiffening, in particular with respect to denting in the horizontal direction.
  • FIGS. 1 and 2 on the one hand and FIGS. 3 and 4 on the other hand shows that the cut edges 11 and 21 can have an almost arbitrary course, as a result of which the decorative effect of the round box can be influenced in different directions. This option enables a large variety of can designs.
  • the cardboard part 7 or 17 of the round box is preferably printed, it is of course also possible to print the film parts 8 or 18 using the methods customary for film printing.
  • the design of the lower edges 15 of the jacket walls 3 can also be designed very differently.
  • the following numbering of the parts of the round box relates to FIGS. 1 and 2; however, it goes without saying that those in accordance with FIGS. 3 and 4 can also take the place of the relevant reference symbols.
  • Figure 5 shows a further variant of a round box.
  • the outer part of the cardboard 37 has a window which is delimited by a U-shaped cutting edge 41, the two "legs” of which extend up to the upper edge 13.
  • the interface 16 is on the opposite side; of it only the part behind the "window” is visible.
  • the position of the window or the cutting edges 41 was chosen so that the lower section of the cutting edge 41, which runs parallel to the edges 13 and 15, is at a distance from the edge 15 which is significantly smaller than half the height of the round box, so that a large "bright” window is formed.
  • a U-shaped overlap region 39 is thereby formed.
  • the area immediately above the lower edge 15 consists exclusively of the cardboard part.
  • FIGS. 6 and 7 show a further variant in which the “window” extends over the entire height of the casing part 3, ie the upper and lower common cut edges simultaneously form the upper and lower edges 13 and 15 respectively.
  • the casing wall 3 has two further cut edges 51 and 52, which extend between the upper edge 13 and the lower edge 15.
  • cardboard and film parts alternate on the circumference of the jacket wall 3.
  • a bottom 4 is inserted into the cardboard part 7, as is already shown in dashed lines in FIGS. 1 to 7.
  • the bottom 4 has a downward-facing frame 25 with which it is firmly glued into the ring-shaped closed part 7 of the cardboard.
  • the cardboard part 7 is rolled into a flanged edge 20 at its lower edge 7, and the purely circular disk-shaped bottom 4a is glued onto the flanged edge 20 from above at its edge.
  • the cardboard part 7 is bent inwards at right angles and forms at this point a type of ring flange 23, onto which a base 4a, which is also circular, is glued.
  • the attachment can also be done by ultrasonic welding in all cases.
  • the upper edge 13 of the jacket wall 3 can only be cut off smoothly, ie the individual jacket lines also run exclusively in a straight line in the upper region.
  • the jacket wall 3 is rolled out at its upper edge 13 to form a flanged edge 26. If, in the area of the upper edge 13, cardboard parts 7 and film parts 8 alternate on the circumference (FIGS. 1 and 2), the flanged edge 26 naturally extends both over the cardboard part and over the film part. With a flanged edge rolled outwards according to FIG. 11, the stackability is retained even with a slight taper of the jacket wall.
  • the jacket wall 3 is rolled in at its upper edge 13 to form a flanged edge 27.
  • stackability is only possible with a relatively large conicity of the jacket wall.
  • the jacket wall 3 is folded flat out at its upper edge 13, i.e. the two film parts placed one on top of the other touch each other along a narrow cylindrical surface 28.
  • the jacket wall 3 is folded inwards in an analogous manner at its upper edge 13, ie the two parts of the jacket wall lying one on top of the other in this area touch each other along a narrow cylindrical surface 29 this time lies in the inner surface of the jacket wall 3.
  • the bottom 4 or 4a and the cover 5 can be made of very different materials: As a material for this purpose, for example, thermoplastic film materials, cardboard and corrugated cardboard come into question, which are permanently or detachably connected to the jacket wall 3 in the region of the lower edge 15 by means of a wide variety of methods could be.
  • the cover 5 can also be injection molded from a thermoplastic. If aroma protection is desired (e.g. with coffee), laminated cardboard materials can be used.
  • a single-layer film is also to be understood as a material in which the two surface areas and the core area form an inseparable whole by co-extrusion or lamination during film production.
  • the core area is made of recycled material, but the surface areas are made of fresh material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)
EP19900101180 1989-02-10 1990-01-22 Boíte circulaire destinée à être expédiée vide et son procédé de fabrication Withdrawn EP0381978A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3903980 1989-02-10
DE3903980A DE3903980A1 (de) 1989-02-10 1989-02-10 Fuer den versand in leerem zustand vorgesehener verpackungsbehaelter und verfahren zu seiner herstellung

Publications (2)

Publication Number Publication Date
EP0381978A2 true EP0381978A2 (fr) 1990-08-16
EP0381978A3 EP0381978A3 (fr) 1991-03-13

Family

ID=6373802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900101180 Withdrawn EP0381978A3 (fr) 1989-02-10 1990-01-22 Boíte circulaire destinée à être expédiée vide et son procédé de fabrication

Country Status (10)

Country Link
US (2) US5031826A (fr)
EP (1) EP0381978A3 (fr)
JP (1) JPH02233350A (fr)
AU (1) AU622974B2 (fr)
CA (1) CA2008896A1 (fr)
DD (1) DD291966A5 (fr)
DE (1) DE3903980A1 (fr)
GB (1) GB2229696B (fr)
IE (1) IE900253L (fr)
PT (1) PT93113A (fr)

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ZA945437B (en) * 1994-02-08 1995-02-28 Kenneth Pernick Packaging of wood fillers
FR2736584B1 (fr) * 1995-07-12 1997-09-26 Petit Georges Ets Sa Procede de fabrication d'un fut en carton kraft
DE20319691U1 (de) * 2003-12-18 2005-05-04 Seda S.P.A., Arzano Zuschnitt für einen Behälter und aus dem Zuschnitt hergestellter Behälter
DE202004007969U1 (de) * 2004-05-18 2005-09-29 Seda S.P.A., Arzano Behälter
US20090000966A1 (en) * 2007-06-28 2009-01-01 Baranowski Brad P Package with Primary and Ancillary Item Compartments
US8066137B2 (en) 2007-08-08 2011-11-29 Clear Lam Packaging, Inc. Flexible, stackable container including a lid and package body folded from a single sheet of film
US8231024B2 (en) 2007-08-08 2012-07-31 Clear Lam Packaging, Inc. Flexible, stackable container and method and system for manufacturing same
EP2376338A4 (fr) 2008-11-06 2012-12-26 Clear Lam Packaging Inc Contenant flexible empilable et procédé et système permettant de le fabriquer
US8573429B2 (en) 2011-07-29 2013-11-05 Target Brands, Inc. Bin
US8944311B2 (en) 2012-05-15 2015-02-03 Target Brands, Inc. Display bin
SG10201903203YA (en) 2012-10-26 2019-05-30 Primapak Llc Flexible package and method of making the same
US10207850B2 (en) 2012-10-26 2019-02-19 Primapak, Llc. Flexible package and method of making same
US20140272015A1 (en) * 2013-03-15 2014-09-18 Nathan D. Ehrlich Container Assemblies, Cookies, And Related Designs
US9215939B2 (en) 2013-10-14 2015-12-22 Target Brands, Inc. Retail fixtures
US10994882B2 (en) 2014-05-19 2021-05-04 Primapak, Llc Apparatus and method for making a flexible package
USD807170S1 (en) 2015-07-28 2018-01-09 Wells Enterprises, Inc. Container
WO2017048676A1 (fr) 2015-09-18 2017-03-23 Clear Lam Packaging, Inc. Appareil et procédé de fabrication d'emballage souple
DE102017201595A1 (de) * 2017-02-01 2018-08-02 Michael Hörauf Maschinenfabrik Gmbh Und Co. Kg Vorrichtung und Verfahren zum Herstellen von Behältern aus Papiermaterial oder papierähnlichem Material und Behälter
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US2076342A (en) * 1934-08-01 1937-04-06 Hildebrandt Edward Method of making containers
FR2280557A1 (fr) * 1974-07-30 1976-02-27 Lincrusta Emballage pour produits pulverulents ou liquides
DE7535138U (de) * 1975-11-05 1976-03-18 Bega-Werke Gmbh, 4902 Bad Salzuflen Dose in zylindrischer Form oder als Mehrecker aus Papier, Pappe, Kunststoff oder dergleichen
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DE8711169U1 (fr) * 1987-08-17 1987-10-29 Weidenhammer Packungen Kg Gmbh & Co, 6832 Hockenheim, De

Also Published As

Publication number Publication date
AU4894390A (en) 1990-08-16
AU622974B2 (en) 1992-04-30
DD291966A5 (de) 1991-07-18
GB2229696B (en) 1993-07-14
DE3903980A1 (de) 1990-08-16
DE3903980C2 (fr) 1991-09-19
PT93113A (pt) 1990-08-31
IE900253L (en) 1990-08-10
EP0381978A3 (fr) 1991-03-13
GB9002825D0 (en) 1990-04-04
CA2008896A1 (fr) 1990-08-10
US5031826A (en) 1991-07-16
US5083994A (en) 1992-01-28
GB2229696A (en) 1990-10-03
JPH02233350A (ja) 1990-09-14

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