EP0525160B1 - Boite pliante avec un sachet interieur et procede pour sa fabrication - Google Patents

Boite pliante avec un sachet interieur et procede pour sa fabrication Download PDF

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Publication number
EP0525160B1
EP0525160B1 EP92905491A EP92905491A EP0525160B1 EP 0525160 B1 EP0525160 B1 EP 0525160B1 EP 92905491 A EP92905491 A EP 92905491A EP 92905491 A EP92905491 A EP 92905491A EP 0525160 B1 EP0525160 B1 EP 0525160B1
Authority
EP
European Patent Office
Prior art keywords
section
folding box
fold lines
glued
body portion
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.)
Expired - Lifetime
Application number
EP92905491A
Other languages
German (de)
English (en)
Other versions
EP0525160A1 (fr
Inventor
Erich Heuberger
Wolf-Dieter Knörrich
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.)
Carl Edelmann GmbH and Co KG
Original Assignee
Carl Edelmann GmbH and Co KG
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 Carl Edelmann GmbH and Co KG filed Critical Carl Edelmann GmbH and Co KG
Publication of EP0525160A1 publication Critical patent/EP0525160A1/fr
Application granted granted Critical
Publication of EP0525160B1 publication Critical patent/EP0525160B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/60—Loose, or loosely attached, linings
    • B65D5/603—Flexible linings loosely glued to the wall of the container
    • B65D5/606—Bags or bag-like tubes loosely glued to the wall of a "tubular" container
    • 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
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • B31B2120/408—Construction of rigid or semi-rigid containers lined or internally reinforced by folding a sheet or blank around an inner tubular liner

Definitions

  • the invention relates to a pre-glued, flat-lying folding box, consisting of a fuselage part with closing flaps adjoining its open sides and a film tube section drawn therein according to the preamble of claim 1.
  • folding boxes are generally known.
  • folding boxes are used for packaging pourable products, especially liquids. To save space, they are delivered to the bottler of the bulk goods in a flat position. At the bottler, the folding boxes are set up in a filling and packaging machine, first sealed and closed at one end, filled with the product and then sealed and closed at the other end.
  • the invention has for its object to provide a folding box of the type mentioned, which is easier to erect, fill and seal.
  • the invention is also based on the object of specifying a method for producing a folding box of the aforementioned type. This object is achieved by the invention specified in claim 6. Advantageous developments of the method are the subject of the dependent claims.
  • the invention provides that the hose section into the folding box has continuous, embossed crease lines extending to the edge of the hose section at all those points that lie in the corners of the fuselage cross section, Give the folding box a largely rectangular cross-section when the box is not yet closed.
  • the fold lines that lie in the pre-glued, flat-lying folding box in the folding lines that connect the stretched walls of the folding box body to one another have the effect that the aforementioned lip effect is largely avoided.
  • a certain amount of air is formed between the walls of the tube section lying one on top of the other when the folding box is not erected, especially in the area between the flaps, which prevents the edges of the tube section from lying completely close together, even sticking to one another and due to the fact that when the folding box is erected inside the resulting negative pressure completely seal off the interior of the hose section from the outside.
  • the tube section in the area between the closure flaps, with which it is not connected offers an improved rectangular shape of the opening cross section, which not only facilitates the filling but also the subsequent sealing of the tube section, for example by welding.
  • the invention is particularly suitable for use in combination with tube materials which have a certain bounce, as is the case with many plastic films, for example.
  • composite films made of paper and plastic made of paper, aluminum and polyethylene, made of aluminum and plastic or of different types of plastic come into consideration as tube materials.
  • So-called monofilms which are particularly desirable for disposal reasons, can also be used, as can polyester foils.
  • Such foils are sealed using heat, ultrasound or high frequency, depending on the type of material selected.
  • Cardboard, cardboard, corrugated cardboard and other other folding box materials can be used as the material for the folding box.
  • a film web made of a sealable material is fed from a roll in the usual way.
  • This film web is not only formed, as is generally known in the prior art, by folding and sealing, in particular welding, of the two edges to form a tube, but it is made into this film web in a total of four longitudinal lines that extend across the width of the film web are distributed, kinks introduced, in particular embossed, which have the effect with the appropriate choice of material of the film that the film is no longer completely flat after folding and welding.
  • At least in partial areas of the cross section there are air cushions within the hose or the hose section separated from the hose, which are open to the outside and thus allow air to flow in during erection.
  • Such a tube section is placed on a prepared, flat, open cardboard blank in a flattened state so that two of the areas of the film tube section delimited from one another by a crease line come to lie on the matching two fields of the body part of the folding box blank.
  • the hose section is glued to the two fields of the body part of the folding box blank.
  • the part of the folding box blank that is not covered by the tube section is then folded over onto the film tube section and glued to it in the region of the other two torso fields of the folding box blank.
  • the folding box blank is glued to itself by means of an adhesive flap which is formed on the folding box blank, so that a pre-glued, flat-lying folding box is formed which, when erected, can be shaped into a cuboid tubular body of rectangular cross-section.
  • the longitudinal weld seam which is produced from the film when the tube is created, runs in a region of the tube section lying in the folding box, where it does not hinder the subsequent sealing of the tube section to form a closed bag.
  • This weld seam preferably runs in one of the two main surfaces of the folding box.
  • the kink lines can be formed in the film web with the aid of conventional folding sheets, over which the film web is drawn, or also with the aid of embossing rollers, which are provided with circumferential grooves, and matching embossing rollers which are inserted into the Protrude circumferential grooves and form a narrow gap with them, between which the material of the film web is carried out. Combinations of both types of processes are also possible. Possibly. the effect of heat can favor the formation and in particular the durability of the kink lines.
  • FIG. 1 a folding box of conventional shape with a body consisting of main surfaces 1 and side surfaces 2, on which top and bottom flaps 3 and 4 are attached.
  • a film tube section 5 which is produced from a film web and has a welded longitudinal seam 6 which runs in one of the main surfaces of the folding box.
  • This tube section 5 consists of a sealable material, in particular a heat-sealable material, such as, for example, thermoplastic or coated metal foil or the like, as described at the beginning.
  • the folding box is already closed on the floor, where the hose section 5 is also sealed and folded.
  • the lower sealing seam which forms the bottom of the inner bag produced from the tube section 5, is designated by 7 in FIG. 1.
  • the length of the tube section is greater than the length of the trunk of the folding box, so that it extends extends between the flaps 3 and 4, which are shown folded away laterally in FIG. 1, in order to make the upper end of the inner bag formed by the tube section 5 accessible for sealing (after filling).
  • the hose section 5 not only has an acute angle where two adjoining areas of the fuselage form an acute angle in the flat state of the pre-glued folding box (these areas are each labeled with the same suffixes a and b) on, but they also have embossed crease lines 9 where, in the pre-glued, flat-lying folding box, two adjoining main surfaces of the fuselage meet at an acute or elongated angle.
  • These fields are labeled with unequal suffixes a and b in FIG. 2.
  • FIG. 2 is not to scale so that the fold lines 9 can be shown better.
  • the bonds between the hose section 5 and the inner surfaces of the fuselage are only indicated by a few broad adhesive points 10.
  • the bonds can be over the entire surface, so that the crease lines 9 are not particularly pronounced in the fuselage.
  • the kink lines 9 emerge in the area of the hose section 5 which lies between the closure flaps 3 and 4, which are not glued to the hose section.
  • the folding box shown in Fig. 1 is filled, after filling, if not already done, the flaps 3 and 4 are folded away from the inner bag formed by the tube section 5 so that the closing and sealing tools can be brought up to the inner bag, the inner bag is then sealed and folded into the folding box, whereupon the flaps 4 and 3 are folded over and glued together, so that the folding box is closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Packages (AREA)
  • Cartons (AREA)

Claims (11)

  1. Boîte pliante, disposée à plat, précollée, se composant d'une partie-corps, pourvue de rabats de fermeture (3,4) reliés à ses côtés ouverts, et d'une partie-boyau (5) en feuille, disposée dans la partie-corps, comportant des bords ouverts et dont la section a une grandeur correspondant à la section intérieure de la partie-corps, avec laquelle elle est collée au moins en partie, en s'étendant aux deux extrémités au moins jusqu'entre les rabats de fermeture (3, 4) non collés avec la partie-boyau (5) et en comportant, sur les lignes qui passent par les deux points à angle aigu de la section intérieure de la partie-corps disposée à plat, des premières lignes de pliage (8) préformées qui s'étendent de façon continue jusqu'aux bords de la partie-boyau, caractérisée en ce que la partie-boyau (5) est également pourvue, sur les deux lignes qui passent par les deux autres coins de la section intérieure de la partie-corps, de secondes lignes de pliage (9) préformées qui s'étendent de façon continue jusqu'aux bords de la partie-boyau (5).
  2. Boîte pliante selon la revendication 1, caractérisée en ce qu'au moins les secondes lignes de pliage (9) sont formées par empreinte.
  3. Boîte pliante selon la revendication 2, caractérisée en ce que les lignes de pliage (8, 9) sont réalisées par empreinte à chaud.
  4. Boîte pliante selon une des revendications 1 à 3, caractérisée en ce que la partie-boyau (5) se compose d'un matériau élastique à la flexion.
  5. Boîte pliante selon une des revendications 1 à 4, caractérisée en ce qu'au moins les parties de paroi (2a, 1b ; 1a, 2b), adjacentes aux secondes lignes de pliage (9), de la partie-boyau (5), font entre elles dans l'état détendu du matériau du boyau, respectivement un angle d'environ 90°.
  6. Procédé de fabrication d'une boîte pliante selon une des revendications précédentes, caractérisé en ce qu'une bande de matière en feuille est pourvue, en des endroits prédéterminés transversalement et dans une direction longitudinale, de quatre lignes de pliage (8, 9) continues, les deux bords de la bande sont amenés en recouvrement et sont reliés de façon étanche l'un avec l'autre, une partie du boyau ainsi formé est sectionnée transversalement et disposée à plat sur un élément de boîte pliante ouvert et disposé à plat, les bords longitudinaux de la partie-boyau (5) sont placés sur les lignes de pliage de l'élément de boîte pliante et cet élément de boîte pliante est replié sur la partie-boyau (5) placée sur lui, il est collé avec elle par sa partiecorps et il est lui-même précollé au moyen d'une patte de collage s'étendant longitudinalement.
  7. Procédé selon la revendication 6, caractérisé en ce qu'au moins les premières lignes de pliage (8) sont créées dans la bande de matière en feuille (5) par étirage de celle-ci par l'intermédiaire de tôles de pliage.
  8. Procédé selon la revendication 6, caractérisé en ce qu'au moins les secondes lignes de pliage (9) sont créées dans la bande de matière en feuille (5) par empreinte à l'aide de rouleaux.
  9. Procédé selon la revendication 8, caractérisé en ce que la bande de matière en feuille (5) est guidée à travers l'intervalle existant entre un cylindre d'empreinte pourvu d'au moins une rainure périphérique et un galet d'empreinte engagé dans la rainure.
  10. Procédé selon la revendication 9, caractérisé en ce que le galet d'empreinte est chauffé.
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que le cylindre d'empreinte est chauffé.
EP92905491A 1991-02-14 1992-02-14 Boite pliante avec un sachet interieur et procede pour sa fabrication Expired - Lifetime EP0525160B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4104559 1991-02-14
DE4104559A DE4104559A1 (de) 1991-02-14 1991-02-14 Faltschachtel mit innenbeutel und verfahren zu ihrer herstellung
PCT/DE1992/000116 WO1992014652A1 (fr) 1991-02-14 1992-02-14 Boite pliante avec un sachet interieur et procede pour sa fabrication

Publications (2)

Publication Number Publication Date
EP0525160A1 EP0525160A1 (fr) 1993-02-03
EP0525160B1 true EP0525160B1 (fr) 1995-05-03

Family

ID=6425062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92905491A Expired - Lifetime EP0525160B1 (fr) 1991-02-14 1992-02-14 Boite pliante avec un sachet interieur et procede pour sa fabrication

Country Status (5)

Country Link
US (1) US5356028A (fr)
EP (1) EP0525160B1 (fr)
AT (1) ATE122009T1 (fr)
DE (2) DE4104559A1 (fr)
WO (1) WO1992014652A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239894A1 (de) * 1992-11-29 1994-06-01 Ucb Transpac Nv Gasdichte Vakuumverpackung und Verfahren zum Herstellen eines dafür geeigneten Hüllmaterials
ES2154154B1 (es) * 1998-06-25 2001-10-16 Smurfit Espana Metodo de embalaje de productos y embalaje para la puesta en practica del mismo.
US6676011B2 (en) 2001-10-03 2004-01-13 Tom Luu Packaging box
US6948618B2 (en) * 2001-10-03 2005-09-27 Tom Tho-Truong Luu Protective packaging system
EP1714888A1 (fr) * 2005-04-20 2006-10-25 Alcan Technology & Management Ltd. Sachet d'emballage dans un suremballage
US20150041527A1 (en) * 2012-03-22 2015-02-12 Chokoku Plast Corporation Composite container, package body, and method for manufacturing composite container
WO2019055005A1 (fr) * 2017-09-13 2019-03-21 Xinova, LLC Emballages rigides et semi-rigides

Family Cites Families (25)

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US1705748A (en) * 1929-03-19 bridgman
USRE20789E (en) * 1938-07-12 Method of forming containers
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GB733144A (en) * 1950-11-06 1955-07-06 Ici Ltd Lined cartons and their manufacture
CH328287A (de) * 1953-09-25 1958-02-28 Unilever Nv Faltschachtel mit Ausfütterung
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FR1130835A (fr) * 1955-09-06 1957-02-12 Cenpa Récipient, notamment pour produits liquides et pâteux
US2950036A (en) * 1957-07-16 1960-08-23 Pneumatic Scale Corp Lined carton and method of making the same
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Also Published As

Publication number Publication date
EP0525160A1 (fr) 1993-02-03
ATE122009T1 (de) 1995-05-15
DE4104559A1 (de) 1992-08-20
DE59202068D1 (de) 1995-06-08
US5356028A (en) 1994-10-18
WO1992014652A1 (fr) 1992-09-03

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