EP0028299B1 - Flüssigkeitspackung mit Ausgiess- und Lufteintrittsöffnung - Google Patents

Flüssigkeitspackung mit Ausgiess- und Lufteintrittsöffnung Download PDF

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Publication number
EP0028299B1
EP0028299B1 EP80105121A EP80105121A EP0028299B1 EP 0028299 B1 EP0028299 B1 EP 0028299B1 EP 80105121 A EP80105121 A EP 80105121A EP 80105121 A EP80105121 A EP 80105121A EP 0028299 B1 EP0028299 B1 EP 0028299B1
Authority
EP
European Patent Office
Prior art keywords
cut
wall
line
double
pack
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
Application number
EP80105121A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0028299A3 (en
EP0028299A2 (de
Inventor
Wilhelm Reil
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.)
Tetra Laval Holdings and Finance SA
Tetra Pak Developpement SA
Original Assignee
Tetra Laval Holdings and Finance SA
Tetra Pak Developpement SA
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 Tetra Laval Holdings and Finance SA, Tetra Pak Developpement SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP0028299A2 publication Critical patent/EP0028299A2/de
Publication of EP0028299A3 publication Critical patent/EP0028299A3/de
Application granted granted Critical
Publication of EP0028299B1 publication Critical patent/EP0028299B1/de
Expired 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
    • B65D5/02—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 by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—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 by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/064—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container
    • B65D5/065—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container with supplemental means facilitating the opening, e.g. tear lines, tear tabs

Definitions

  • the invention relates to a pack for liquids made of cardboard, paper or the like, which is liquid-impermeable at least on the inside by a plastic coating and has on at least one side a double-walled partial area, the interior of which is connected to the inside of the pack, which is on its one partial wall has a graspable cardboard strip, a cut or perforation line is provided in the double-walled partial area, which delimits a tear-open opening, and close to it on the liquid side of the cut or perforation line has a hand-tearable weld seam, by means of which the two partial area walls are welded together in a liquid-tight manner.
  • a very practical way of producing the known cuboid packs is to form a tube, flatten, fill, cross-seal or separate the packages from the tube.
  • Such packs have double cardboard strips on two opposite side walls and one end wall or on two opposite end walls and one side wall, which strips can be bent up and gripped if necessary.
  • a perforation line which is rectangular in plan view, is provided as the opening device of this known package in the upper end wall, which also extends a short distance down over the aforementioned edge line in the triangular lobes.
  • a plastic cover strip is welded on the inside, at a distance from the perforation line.
  • a pack of the type described in more detail at the beginning is known from DE-A-2 208 891.
  • the double-walled section which has already been referred to as triangular tabs, is divided into two parts by the double cardboard strip running down the upper end wall and on the front side surface. A cut that breaks through both walls of this partial area creates a tearable double-walled section which is located completely in half of these divided partial areas. This tearable section does not protrude into or beyond the cardboard strip.
  • the user grasps this tearable section and tears it off completely along the cutting line.
  • the weld seam providing the liquid seal can be broken open by tearing it up using the double cardboard strip.
  • the casting properties of an opening arranged at the edge of the double-walled triangular flap are obviously not particularly favorable and are also not easy for the user to understand, as is the case with an opening in the middle of a triangular flap.
  • a piece of waste arises, which the user has to throw away in any case.
  • a similar package is known from DE- ⁇ -2 707 321, although there is no weld seam on the liquid side next to the cutting or perforation line.
  • a perforation line is used here, over which a plastic coating is drawn for sealing.
  • the invention is based on the object of the known liquid pack according to DE-A-2 208 891 improve that the handling for the end user is easier, the pouring properties are improved and no pieces of waste arise during the opening process, which are to be thrown away separately from the package.
  • the basic idea of the invention resides in the fact that it is possible with very simple tools at the point of the pack where the double-layered part is located, i.e. the triangular flap, to make a cut line in one of the two part area walls lying one above the other and then, or particularly advantageously even simultaneously, to make a weld seam next to it. Due to the weld seam, the two partial area walls lying one above the other, in particular the triangular walls, are welded to one another in a liquid-tight manner.
  • openings that can be prepared in a surprisingly simple manner can be created in any form in one and / or the other partial area wall by the following measures:
  • tensile or compressive forces are exerted on the weld seam next to or on the weld seams next to the cutting lines in a very specific way.
  • the cut can be made by the measures according to the invention in such a way that the weld seam which caused the liquid seal is broken open for opening.
  • the weld seam located on the side of the partial area wall opposite the cutting line then ensures that the part of the material layer hanging thereon remains attached to the opposite partial area wall, which is opposite the cutting line and is not cut through. In this way, an opening can be achieved perfectly and easily in any form.
  • a preferred embodiment of the invention is characterized in that the cut or perforation line surrounds the tear opening as an endless line, the non-tearable weld seam being located within the area delimited by the endless cut or perforation line.
  • the weld seam and / or the cutting line can also be provided as a self-contained circle, oval, closed square, polygon or the like in the area where one partial area wall lies above the other in which Box pack especially in the double-walled triangular tab. It is important according to the invention if the cut line essentially only penetrates a partial area wall in order to ensure that the opposite wall remains liquid-tight.
  • the cutting line explained at the beginning can either be described as an uninterrupted, i.e. continuous cutting line, or imagine as a cutting line along which the cut cardboard carrier web has stopped on small sections.
  • This interrupted cutting line is referred to below as the perforation line.
  • the advantages described above can also be achieved when using a perforation line instead of a continuous cutting line.
  • the person skilled in the art will have to clarify from case to case whether it is more expedient to use a perforation line or a continuous cutting line.
  • the invention is expediently further embodied in that a plurality of self-contained cutting or perforation lines are provided in one of the double-layered sub-area walls to form a plurality of pouring openings, and one or two self-contained cutting or perforation lines are provided in the other sub-area wall to form air inlet openings are.
  • a plurality of self-contained cutting or perforation lines are provided in one of the double-layered sub-area walls to form a plurality of pouring openings
  • one or two self-contained cutting or perforation lines are provided in the other sub-area wall to form air inlet openings are.
  • the multiplicity of circular cut lines in the lower triangular wall as a plurality of pouring openings
  • one or two air inlet openings are provided on the upper, ie, the triangular wall extended in the direction of the double-walled triangular lobe.
  • the usual thing will be to provide only a larger opening in the lower triangle wall as a pouring opening.
  • the double-walled triangular flap is divided into two areas by the perforation or cut line and the weld seam arranged next to it: the one area that lies more towards the pack, which is connected to the inside of the pack, and the other, that to the outside tip area of the triangular tab, which remains closed in a liquid-tight manner due to the narrow weld seam with respect to the interior of the pack.
  • the double cardboard strip When the double cardboard strip is gripped, the latter will tear open the weld seam that seals against the liquid and thus create a pouring opening.
  • the cut or perforation lines in the lower partial wall are arranged at a lateral distance from the double cardboard strips arranged in the upper partial wall.
  • the advantage of the above-mentioned arrangement of the plurality of self-contained cutting lines is clearly formed. It is understood that the distribution of many small openings can be done better than the arrangement of a single large opening. One can see the many small openings in desired areas in the lower part wall, i.e. in the bottom wall of the triangular lobe. Other areas can remain without small openings and without cutting lines at all. If such an area without openings lies in the lower triangular wall in the area in which the double cardboard strip is located in the upper triangular wall, then the welding can be carried out better.
  • the reason why, preferably in the lower triangular wall under the cardboard strip, there are no cut lines with the narrow weld seams arranged on both sides thereof, is that the difficulties in welding are eliminated when the double cardboard strip is raised.
  • the double cardboard strip is attached to the upper end wall, there is a narrow gap at which the counter-pressure jaws have a bad effect, so that the introduction of the narrow weld seams on both sides next to the cutting lines is difficult to apply properly and tightly.
  • the special advantage of the opening is that the cutting line and weld seam are only introduced after the packaging has been filled and closed.
  • the machine for forming, filling, closing (by welding) and separating the pack need not be burdened with additional machine elements for producing an opening device.
  • the latter can take place in a downstream station, in which the double-walled partial area is preferably not yet folded down, folded over and fastened around the edge line between the upper end wall and side wall of the cuboid-shaped pack, but e.g. protrudes laterally in the plane of the upper end wall.
  • the machine parts for inserting cutting lines and weld seams can intervene particularly easily and effectively.
  • liquid pack made of cardboard coated with plastic on both sides has the shape of a cuboid with an upper end wall 1, in which a double cardboard strip 2 is arranged, which extends from an outer tip 3 of the front triangular tab 4 to to the opposite tip, not shown, of the other triangular lobe, also not shown, is sufficient.
  • the lower triangular lobes are only visible from FIGS. 9 to 11, but are not provided with a reference number because they are not essential to the invention.
  • FIGS. 9 to 10 Another double cardboard strip 5, which has a sealed seam, runs transversely through the upper end wall 1 and ends, as shown in FIGS. 9 to 10, on the underside, as also not specified.
  • the front side wall 6 is smooth and connected to the upper end wall 1 via the edge line 7, around which the triangular flap 4 is folded down and attached to the front side wall 6.
  • the inside of the triangular tab 4 is directly connected to the inside of the pack.
  • the upper triangular wall visible in FIG. 1 is designated by 8, the lower triangular wall visible in FIGS. 3, 4 and 9 to 11 by 9.
  • a large pouring opening 11 results in the lower triangular wall 9, while in the embodiment of FIG. 11 a large number of small circular openings 11 'are shown, which likewise (according to the principle of a "salt control") represent the pouring opening.
  • the section line 20 runs in the form of a partial arc, the cross-section according to FIG. 9 can be seen in FIG. 13.
  • the production succeeds with a cut welding stamp.
  • the perforation line 21 is shown in an arc from the left folded edge 12 to the right 13 across the triangular flap 4, in particular the lower triangular wall 9.
  • All of the holes shown in a circle, in particular the air inlet holes 10, but also the plurality of pouring holes 11 'in the embodiment of FIG. 11, are produced with a welding cutting punch, not shown.
  • the section line for the air inlet openings 10 in the upper triangular wall 8 is referred to as 22 and is found in FIG. 8 in the view of section C-C of FIG. 7.
  • narrow weld seams 23 are arranged on both sides of the cutting line 20, 21, which are also found in the sectional view of FIG. 13.
  • narrow weld seams 23 are provided inside and outside of the circular cutting line 22.
  • the upper part area designated 24 in the large pouring opening corresponds to the area 24 'in the case of the small circular openings 10, 11', which is shown in the case of FIG. 6 in connection with the hole 10 and was part of the upper triangular wall 8.
  • the reason for the fixed connection between the part 24 'and the lower triangular wall 9 is that the parts 24 and 24' respectively connected to the opposite triangular wall after tearing, i.e. the fracture of the weld seams 23 which provide the seal, in particular to the right and left of the cut 22 which provide the liquid seal, remain firmly adhered.
  • the part 24' remains attached to the opposite triangular wall, while the weld seams 23, which ensure tightness on the outside, are separated. The result can be seen in FIG. 6.
  • the air inlet opening 10 is open there as well as the pouring opening 11. These openings result from the fact that in the case of the air inlet opening 10 the partial region 24 ′ adheres to the lower triangular wall, while in the case of the pouring opening 11 the region 24 adheres to the upper triangular wall 8 remains.
  • the sectional view of FIG. 2 along the line BB in FIG. 10 is therefore a projection in the direction of view of the section, so that there one the webs 30 remaining between the partial cuts can be recognized, which make up the perforation line in contrast to the continuous cutting line.
  • the plastic layer 31 lies underneath.
  • the embodiments of the drawings are packs in which an air inlet opening 10 is formed at the top, while the pouring opening 11 or the multiplicity of small openings 11 'is or are formed at the bottom in the triangular wall 9.
  • This opening is done in such a way that the package is taken in the state of FIG. 1, the triangular flap 4 is folded up into the plane of the upper wall 1 as shown in FIG. 2, after which the user then grabs the double cardboard strip 2 with his fingers and pulls up against the rest of the pack.
  • the front side wall 6 becomes somewhat narrower at the top, and the outer tip 3 moves somewhat upward from the plane of the top wall 1, the top wall 1 bulging.
  • FIGS. 3 and 5 Perspectively, one then has the opened package according to FIGS. 3 and 5.
  • FIG. 6 shows in section how the part 24 'tore out of the upper triangular wall 8 and adheres to the opposite lower triangular wall 9, so that the air inlet opening given is. In the same way, the area 24 adheres to the upper triangular wall 8, and the pouring opening 11 results. In the manner shown in FIG. 4, the filling material can then be poured out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)
EP80105121A 1979-09-27 1980-08-28 Flüssigkeitspackung mit Ausgiess- und Lufteintrittsöffnung Expired EP0028299B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2939093 1979-09-27
DE2939093A DE2939093C2 (de) 1979-09-27 1979-09-27 Flüssigkeitspackung mit Ausgieß- und Lufteintrittsöffnung

Publications (3)

Publication Number Publication Date
EP0028299A2 EP0028299A2 (de) 1981-05-13
EP0028299A3 EP0028299A3 (en) 1981-05-20
EP0028299B1 true EP0028299B1 (de) 1985-01-09

Family

ID=6081977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105121A Expired EP0028299B1 (de) 1979-09-27 1980-08-28 Flüssigkeitspackung mit Ausgiess- und Lufteintrittsöffnung

Country Status (6)

Country Link
US (1) US4367828A (enrdf_load_stackoverflow)
EP (1) EP0028299B1 (enrdf_load_stackoverflow)
JP (1) JPS5695863A (enrdf_load_stackoverflow)
CA (1) CA1157815A (enrdf_load_stackoverflow)
DE (2) DE2939093C2 (enrdf_load_stackoverflow)
ES (1) ES264901Y (enrdf_load_stackoverflow)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037067C2 (de) * 1980-10-01 1986-07-10 Altstädter Verpackungsvertriebs Gesellschaft mbH, 6102 Pfungstadt Flüssigkeitspackung und Vorrichtung zur Herstellung derselben
DE3205751A1 (de) * 1982-02-18 1983-08-25 Werner Georg 7981 Vogt Munk Einweg-getraenkepackung
EP0139799A1 (en) * 1983-10-31 1985-05-08 Tadashi Hirano Package with a straw
CH668237A5 (de) * 1985-12-19 1988-12-15 Sig Schweiz Industrieges Zuschnitt fuer eine quaderpackung und quaderpackung.
JPS62177627U (enrdf_load_stackoverflow) * 1986-04-28 1987-11-11
USD349048S (en) 1990-09-13 1994-07-26 Tubex AB Straw package
SE502399C2 (sv) * 1991-02-14 1995-10-16 Tetra Laval Holdings & Finance Med öppningsanvisning försedd förpackningsbehållare
GB9112392D0 (en) * 1991-06-10 1991-07-31 Duschnitz John R S Carton for packaging liquids
US5150833A (en) * 1992-03-09 1992-09-29 Hong Pi Lien Paper package for beverage
JPH09150822A (ja) * 1995-12-01 1997-06-10 Yoneko Nakawatase 飲料用紙製容器
AU6796398A (en) * 1997-04-04 1998-10-30 Sig Combibloc Inc. Tear-away package opening
US6241646B1 (en) 1998-02-09 2001-06-05 Sig Combibloc Inc. Tear-away container spout
US6766941B1 (en) 1998-02-09 2004-07-27 Sig Combibloc, Inc. Tear-away container top
US6098874A (en) 1998-02-09 2000-08-08 Sig Combibloc Inc. Tear-away container top
US6354062B1 (en) 1999-05-13 2002-03-12 Bevtek Inc. Method of manufacture of individual beverage carton with a straw therein
US6431434B1 (en) 1999-09-23 2002-08-13 Keith Louis Haughton Individual beverage carton with a straw therein and a method of manufacture
JP2004537481A (ja) * 2001-08-03 2004-12-16 リー、ジュンミン 排出台が形成された三角四面体の包装容器
DE10360305A1 (de) * 2003-12-20 2005-07-21 Khs Maschinen- Und Anlagenbau Ag Verpackung aus Flachmaterial sowie Verfahren zum Herstellen einer solchen Verpackung
CN104973304B (zh) * 2014-04-11 2017-04-12 北京一撕得物流技术有限公司 一种包装箱

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH415441A (de) * 1964-03-20 1966-06-15 Tepar Ag Vorrichtung an Viereckkapselverpackungen zum Oeffnen und Entleeren derselben
US3795359A (en) * 1971-11-19 1974-03-05 Tetra Pak Int Parallellepipedic package
DE2208891A1 (de) * 1972-02-25 1973-08-30 Altstaedter Verpack Vertrieb Verpackung mit einfacher ausgusstuelle
DE2520569C2 (de) * 1975-05-09 1982-10-21 Altstädter Verpackungs-Vertriebsgesellschaft mbH, 6102 Pfungstadt Verpackung für Flüssigkeiten mit Ausgießtülle
DE2623176C2 (de) * 1976-05-24 1982-07-29 Altstädter Verpackungs-Vertriebsgesellschaft mbH, 6102 Pfungstadt Aufreiß- und Ausgießöffnung
SE422672B (sv) * 1976-07-08 1982-03-22 Ziristor Ab Med oppningsanordning forsedd forpackningsbehallare
DE7705163U1 (de) 1977-02-19 1979-04-26 Linnich Papier & Kunststoff Faltschachtel fuer schuettgueter
DE2707321C2 (de) * 1977-02-19 1979-04-26 Papier- Und Kunststoff-Werke Linnich Gmbh, 4000 Duesseldorf Faltschachtel für Schüttgüter
DE2804812A1 (de) 1978-02-04 1979-08-09 Rotopack Gmbh Faltschachtel

Also Published As

Publication number Publication date
ES264901Y (es) 1983-05-16
EP0028299A3 (en) 1981-05-20
EP0028299A2 (de) 1981-05-13
DE2939093C2 (de) 1986-02-06
JPH0146382B2 (enrdf_load_stackoverflow) 1989-10-06
DE2939093A1 (de) 1981-04-09
JPS5695863A (en) 1981-08-03
DE3069933D1 (en) 1985-02-21
CA1157815A (en) 1983-11-29
ES264901U (es) 1982-11-16
US4367828A (en) 1983-01-11

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