EP0028299A2 - Conteneur pour liquides avec ouvertures de déversement et d'admission d'air - Google Patents

Conteneur pour liquides avec ouvertures de déversement et d'admission d'air Download PDF

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Publication number
EP0028299A2
EP0028299A2 EP80105121A EP80105121A EP0028299A2 EP 0028299 A2 EP0028299 A2 EP 0028299A2 EP 80105121 A EP80105121 A EP 80105121A EP 80105121 A EP80105121 A EP 80105121A EP 0028299 A2 EP0028299 A2 EP 0028299A2
Authority
EP
European Patent Office
Prior art keywords
pack
line
wall
double
partial area
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.)
Granted
Application number
EP80105121A
Other languages
German (de)
English (en)
Other versions
EP0028299A3 (en
EP0028299B1 (fr
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/fr
Publication of EP0028299A3 publication Critical patent/EP0028299A3/de
Application granted granted Critical
Publication of EP0028299B1 publication Critical patent/EP0028299B1/fr
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 inside of which is connected to the inside of the pack and which is on one partial area wall has a tangible cardboard strip.
  • 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 sealing seams in the form of double cardboard strips with sealing seam on two opposite side walls and one end wall or on two opposite end walls and one side wall, which can optionally be bent up and gripped.
  • a perforation line which in certain embodiments is self-contained and rectangular in plan view, is provided in the upper end wall, which also extends a short distance beyond the aforementioned edge line in the triangular lobes.
  • a plastic cover strip is welded on the inside, at a distance from the perforation line.
  • the perforation line which is rectangular in plan view in the projection, there is a larger welding spot in the area of the edge line and at a distance from this at the end distant from the edge line at least one further smaller welding spot on which the plastic-coated carrier material web with that of inside the plastic cover strip is welded.
  • the invention is based on the object, using even simpler means of manufacture, to create a liquid pack that is easy to stack, reliably sealed during transport and before opening, and easy for the end user to open.
  • the basic idea of the invention is based on the fact that it is possible with very simple tools, at the location of the pack, where the doubled section is located, ie the triangular flap, a cutting line and one of the two section walls lying one above the other then, or particularly advantageously, even to place 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 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 brought about the liquid seal is broken open for opening.
  • Another one. B. on the opposite side of the section line weld located then ensures that the hanging part of the material layer on the opposite section wall, which is opposite to the cutting line and is not cut, gets stuck. In this way, an opening can be achieved perfectly and easily in any form.
  • weld seam is so narrow that it can be torn open by hand.
  • a preferred embodiment of the invention is characterized in that the cutting line runs along a closed circle.
  • the weld seam and / or the cutting line can be provided along a circle, oval, a closed square, polygon or the like in the area where one partial area wall lies above the other, in particular in the cuboid packing in the double-walled triangular lobe.
  • the cutting line is essentially Chen penetrates only a partial area wall to ensure that the opposite wall remains liquid-tight. In and of itself, a closed cut would make the pack leaky at this point, especially since the inside of the partial area or triangular lobe is connected to the inside of the pack.
  • weld seam By arranging the weld seam at a distance around the closed cutting line, however, it can be seen and the cutting line is sealed again with very simple means against the interior of the double-walled partial area, ie the triangular tab. If one now arranges a weld seam on the opposite side, i.e. within the cutting line, then this means that when the two partial area walls are pulled apart, the inner area remains stuck on the opposite wall without a cutting line, while the outer cutting line just described, which causes the liquid seal, is broken becomes.
  • the cutting line is a broken line as a perforation line.
  • the cutting line explained at the outset can either be thought of as an uninterrupted, ie continuous cutting line or, in the advantageous embodiment to be described now, 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 also go away when using a perforation line instead of one the cutting line can be reached.
  • to improve the sealing relative to the easy tear characterized by first perforates the cardboard support material, then coated, and then attaches the weld seams described in addition to the perforation lines.
  • the person skilled in the art will have to clarify on a case-by-case basis whether it is more expedient to use a perforation line or a continuous cut line.
  • the invention is further embodied in that a plurality of circular cutting lines are provided in one of the doubled partial area walls to form a pouring opening and only one or two circular cutting lines are provided in the other partial area wall to form air inlet openings, and that each circular area within and outside of the cutting lines is at least partially welded to the respective opposite section wall.
  • a plurality of circular cutting lines are provided in one of the doubled partial area walls to form a pouring opening and only one or two circular cutting lines are provided in the other partial area wall to form air inlet openings, and that each circular area within and outside of the cutting lines is at least partially welded to the respective opposite section wall.
  • a special preferred embodiment of the invention which has already been mentioned several times in the above explanations, is characterized in that the doubled section is designed as a triangular flap, in which two sides are formed by folded edges that meet at the outer tip, to which the manageable double is also formed Cardboard strips with a sealed seam, and that the cut line in the triangle wall runs without double cardboard strips from one folded edge to the other across the triangular flap.
  • the embodiment which has already been briefly striped is addressed here, in which instead of the large number of small circular pouring openings, a large pouring opening is to be formed on the lower side of the double triangular lobe.
  • the cutting line in the triangular wall without double cardboard strips, which expediently runs from one folded edge to the other across the triangular flap runs. It does not matter whether the cutting line has the shape of an arc with a constant radius or with a different radius, the shape of a straight line or several straight lines arranged at an angle to each other.
  • the double-walled triangular flap is divided into two areas by the cutting 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, the area located towards the outer tip of the triangular tab, which is separated from the inside of the pack by the narrow weld seam in a liquid-tight manner.
  • 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 breakable weld seam also extends from one folded edge to the other, sealing the interior of the pack. So here it is not a question of the perforation line, but of the continuous cutting line which, when it runs from one folded edge to the other, causes a correspondingly large pouring opening.
  • a weld seam is provided on the side of the continuous cut line facing the interior of the pack, which also runs from one folded edge to the other, that is to say completely next to the continuous cut line, and thus seals the inside of the triangular flap from the cut line to the outside towards the outside in a liquid-tight manner .
  • the plurality of circular cut lines in the triangular wall are arranged without double cardboard strips and at a distance next to the latter.
  • the arrangement of the cut lines with the weld seams, which are preferably arranged on both sides next to them, is therefore carried out at a distance from the cardboard strip so that the liquid-tight welding is guaranteed with certainty and is not disturbed by the difficult to apply back pressure or the double cardboard strip.
  • the invention also relates to a method for producing the package as described above, this method being characterized in that after shaping, filling and closing the package on the outwardly projecting double-walled section next to the cutting line, at least a narrow one breakable welding edge is attached to connect the two sub-area walls together.
  • the special advantage of the new method is that the cutting line and weld seam are only introduced after the pack has been filled and sealed. This results in considerable simplifications in terms of machine technology. Understandably, the machine for forming, filling, closing (by welding) and separating the package need not be burdened with additional machine elements for producing an opening device.
  • the latter can rather 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 the side wall of the cuboid-shaped pack, but z. B. protrudes laterally in the plane of the upper end wall. Then the machine parts for inserting cutting lines and weld seams can intervene particularly easily and effectively.
  • the one and / or the other partial area wall is both provided with at least one continuous cutting line and the narrow welding edge is applied on both sides of the cutting line.
  • the cutting line can be both continuous and a perforation line and the further processing mainly focuses on the application of the weld seams.
  • the arrangement of a continuous cutting line in the last-mentioned embodiment is particularly preferred because, in one or in both partial area walls, in particular the triangular walls, both the cutting lines and the one from the one and / or from the other side into the projecting partial area Can introduce welds. It is think bar that one uses the same tool, perhaps even to arrange both the cutting lines and the narrow welds next to it at the same time. It is understood that the manufacturing process of such a package can be surprisingly simplified.
  • the invention is therefore further developed with regard to the device for carrying out the method in that a welding stamp adapted to the shape of the narrow weld seam or the narrow weld seams is provided such that it can be moved and heated in relation to a counter jaw and can be moved.
  • a welding stamp can laterally in the manner described above after filling and closing the package z. B. from above and / or below or from the right and / or left against the double-walled triangular flap to produce the weld or welds.
  • the welding stamp according to the invention has a high-frequency welding coil. It is particularly advantageous in the case of packaging materials coated with aluminum if the high-frequency welding technology known per se is used, especially since the technology here already allows the use of very fine coils which are guided according to the desired contours.
  • FIGS. 9 to 11 perspectively shown liquid pack made of cardboard with plastic coated on both sides has the shape of a cuboid with an upper end wall 1, in which a double cardboard strip 2 is arranged, from an outer tip 3 of the front triangular flap shown 4 extends to the opposite tip, not shown, of the other triangular lobe, also not shown.
  • 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.
  • 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 11, 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.
  • a large pouring opening 11 is obtained in the lower D reieckwand 9, while shown in the embodiment of Fig. 12, a plurality of small circular openings 11 ', which are also collectively form the pouring opening (according to the principle of a "salt shaker").
  • the section line 20, whose cross section according to FIG. 9 can be seen in FIG. 14, runs from one folded edge 12 to the other folded edge 13 in the form of a partial arc.
  • the production succeeds with the cutting welding punch 50, which is shown in FIG. 15 as well as the counter pressure jaws 51 broken away in section.
  • the perforation line 21 is shown in an arc shape from the left folded edge 12 to the right 13 across the triangular flap 4, in particular the lower triangular wall 9, which is either arcuate, as in the illustration in FIG. 1, or can be formed as two lines 21 arranged at an angle to one another according to FIG. 11.
  • All holes shown in a circle, in particular the air inlet holes 10, but also the multiplicity of pouring holes 11 ′ in the embodiment of FIG. 12 are produced with the welding cutting punch 52 shown in FIG. 16 in the manner shown, with the creation in FIG. 16 the air inlet openings 10 in the upper triangular wall 8 is shown.
  • the section line is therefore designated 22 and can also be 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 views of FIGS. 14 to 16.
  • Another embodiment is shown only in the embodiment of FIG. 11, in which a weld seam 23 is arranged only on the side of the perforation line 21 facing the outer tip 3. In this embodiment, this is sufficient because the perforation line 21 introduced into the cardboard carrier material web before the plastic coating does not cause a leak.
  • the weld seam 23 shown above in FIG. 11 therefore only needs to ensure that the upper partial area 24 of the lower triangular wall 9 is fastened to the upper triangular wall 8.
  • narrow weld seams 23 are provided on the inside and outside of the circular cutting line 22, as can be seen in particular from FIG. 16 on a larger scale.
  • the upper sub-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. 16 in connection with the hole 10 and here, however, is part of the upper triangular wall 8.
  • this part 24 ′ is also firmly connected to the welded part of the lower triangular wall 9 below.
  • 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. 13 along the line B - B in FIG. 10 is therefore a projection in the direction of view of the cut, so that the webs 30 that have remained between the partial cuts can be seen there, 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 away something from the plane of the top wall 1 upwards, 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)
EP80105121A 1979-09-27 1980-08-28 Conteneur pour liquides avec ouvertures de déversement et d'admission d'air Expired EP0028299B1 (fr)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=6081977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105121A Expired EP0028299B1 (fr) 1979-09-27 1980-08-28 Conteneur pour liquides avec ouvertures de déversement et d'admission d'air

Country Status (6)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049460A1 (fr) * 1980-10-01 1982-04-14 Tetra Laval Holdings & Finance SA Emballage pour liquide, présentant une ouverture de déversement
EP0139799A1 (fr) * 1983-10-31 1985-05-08 Tadashi Hirano Emballage muni d'une paille
GB2256633A (en) * 1991-06-10 1992-12-16 John Richard Solon Duschnitz Carton for packaging liquids
CN106553803A (zh) * 2014-04-11 2017-04-05 北京撕得物流技术有限公司 一种包装箱

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205751A1 (de) * 1982-02-18 1983-08-25 Werner Georg 7981 Vogt Munk Einweg-getraenkepackung
CH668237A5 (de) * 1985-12-19 1988-12-15 Sig Schweiz Industrieges Zuschnitt fuer eine quaderpackung und quaderpackung.
JPS62177627U (fr) * 1986-04-28 1987-11-11
SE502399C2 (sv) * 1991-02-14 1995-10-16 Tetra Laval Holdings & Finance Med öppningsanvisning försedd förpackningsbehållare
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
BR9808463A (pt) * 1997-04-04 2000-08-29 Sig Combibloc Inc Embalagem e processos para fabricar uma embalagem possuindo uma abertura por rasgamento e para abrir uma embalagem
US6098874A (en) 1998-02-09 2000-08-08 Sig Combibloc Inc. Tear-away container top
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208891A1 (de) * 1972-02-25 1973-08-30 Altstaedter Verpack Vertrieb Verpackung mit einfacher ausgusstuelle
DE2520569A1 (de) * 1975-05-09 1976-11-18 Altstaedter Verpack Vertrieb Verpackung fuer fluessigkeiten mit aufreissoeffnung
DE2623176A1 (de) * 1976-05-24 1977-12-08 Altstaedter Verpack Vertrieb Aufreiss- und ausgiessoeffnung
DE2707321B1 (de) * 1977-02-19 1978-08-17 Linnich Papier & Kunststoff Faltschachtel fuer Schuettgueter

Family Cites Families (3)

* 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
SE422672B (sv) * 1976-07-08 1982-03-22 Ziristor Ab Med oppningsanordning forsedd forpackningsbehallare

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208891A1 (de) * 1972-02-25 1973-08-30 Altstaedter Verpack Vertrieb Verpackung mit einfacher ausgusstuelle
DE2520569A1 (de) * 1975-05-09 1976-11-18 Altstaedter Verpack Vertrieb Verpackung fuer fluessigkeiten mit aufreissoeffnung
DE2623176A1 (de) * 1976-05-24 1977-12-08 Altstaedter Verpack Vertrieb Aufreiss- und ausgiessoeffnung
DE2707321B1 (de) * 1977-02-19 1978-08-17 Linnich Papier & Kunststoff Faltschachtel fuer Schuettgueter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049460A1 (fr) * 1980-10-01 1982-04-14 Tetra Laval Holdings & Finance SA Emballage pour liquide, présentant une ouverture de déversement
EP0139799A1 (fr) * 1983-10-31 1985-05-08 Tadashi Hirano Emballage muni d'une paille
GB2256633A (en) * 1991-06-10 1992-12-16 John Richard Solon Duschnitz Carton for packaging liquids
CN106553803A (zh) * 2014-04-11 2017-04-05 北京撕得物流技术有限公司 一种包装箱
CN106553803B (zh) * 2014-04-11 2018-06-22 北京一撕得物流技术有限公司 一种包装箱

Also Published As

Publication number Publication date
JPS5695863A (en) 1981-08-03
DE2939093A1 (de) 1981-04-09
ES264901Y (es) 1983-05-16
JPH0146382B2 (fr) 1989-10-06
DE2939093C2 (de) 1986-02-06
CA1157815A (fr) 1983-11-29
DE3069933D1 (en) 1985-02-21
ES264901U (es) 1982-11-16
US4367828A (en) 1983-01-11
EP0028299A3 (en) 1981-05-20
EP0028299B1 (fr) 1985-01-09

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