EP0295423B1 - Verpackung mit Öffnungsvorrichtung - Google Patents

Verpackung mit Öffnungsvorrichtung Download PDF

Info

Publication number
EP0295423B1
EP0295423B1 EP88107477A EP88107477A EP0295423B1 EP 0295423 B1 EP0295423 B1 EP 0295423B1 EP 88107477 A EP88107477 A EP 88107477A EP 88107477 A EP88107477 A EP 88107477A EP 0295423 B1 EP0295423 B1 EP 0295423B1
Authority
EP
European Patent Office
Prior art keywords
rivet
tearing
opening
pack
line
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
EP88107477A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0295423A3 (en
EP0295423A2 (de
Inventor
Per Magnus Andersson
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
Original Assignee
Tetra Laval Holdings and Finance SA
Tetra Alfa Holdings 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 Alfa Holdings SA filed Critical Tetra Laval Holdings and Finance SA
Priority to AT88107477T priority Critical patent/ATE88151T1/de
Publication of EP0295423A2 publication Critical patent/EP0295423A2/de
Publication of EP0295423A3 publication Critical patent/EP0295423A3/de
Application granted granted Critical
Publication of EP0295423B1 publication Critical patent/EP0295423B1/de
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
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings

Definitions

  • the invention relates to a package with an upper base, which has a line of weakness, along which a pouring opening can be torn open by means of a gripping and tearing device made of plastic with an externally and internally attached to the upper base with a rivet-like part and a web-like part of an opening device.
  • Such a package is known from document EP-A-0 117 125, but it is constructed like a can with a metal lid, the inside of which is coated with a thermoplastic.
  • This makes it possible to insert a prefabricated rivet through a hole in the cover and to connect the rivet to the inner surface by heat via the lower, enlarged part.
  • the outer part of the rivet which extends over the top floor, ends with an extension as a tear tip over a line of weakness, which may only be approximately half-embossed into the metal foil of the top floor. The tearing process is initiated with this tearing tip to ensure that when the known tearing device is pulled up, the opening actually takes place along the line of weakness.
  • the object of the present invention is to improve the tearing process and to provide means for initiating and improving the tearing of known packs of paper, cardboard or the like, in order to facilitate opening for the end user and yet not destroy the gas impermeability of the pack thereby.
  • the upper floor consists of a paper material coated on its two surfaces with plastic, in which the weakening line is formed as a perforation line, the rivet-like part of the tearing device in the closed state of the packaging close to one point the perforation line running only in the paper material, which is the nozzle tip of the pouring opening, is injected into a hole in the top floor and the web of the tearing device is shaped and sealed onto the top floor in such a way that its lower outer edge and the perforation line overlap.
  • the metal foil of the known packaging is therefore deliberately replaced by a paper material, so that the weakening line is designed as a perforation line. They runs in the paper itself, but not in the outer plastic layers, preferably not in the inside, so that in the case of liquid as packaging material, this cannot penetrate into the paper at the interfaces and destroy the packaging. Despite the arrangement of the perforation line, the pack is therefore liquid-tight.
  • the tear device has a rivet-like part and a web.
  • the rivet-like part is now attached to the nozzle tip of the pouring opening in a hole in the top floor, by injection, because this ensures a particularly good manufacturing method for bulk goods.
  • This measure and the described sealing of the web of the tearing device on the top floor create very defined conditions, in particular for the shape of the pouring opening, even if the material to be torn is paper or cardboard.
  • this can advantageously be injected in any desired configurations, so that tearing and opening of the pouring opening can also be improved according to the invention.
  • the forces introduced by the user into the tearing device are guided to the correct places, so that the tearing process is guaranteed to be initiated into the perforation line.
  • the tear force of the user is completely introduced into the perforation line, so that the further tearing with certainty also continues along this line and not inadvertently next to it.
  • the measures according to the invention also ensure the further advantage that a packaging equipped with the novel opening device is better suited for aseptic conditions because it is substantially impermeable to gas, in particular impermeable to oxygen, than previously known packs or also in the Developing designs. It has been proposed that packs also be designed with an upper base made entirely of plastic without a carrier material, in which an opening device of any configuration can be arranged by spraying. Such packs can be manufactured very cheaply, practically and economically For normal liquids that do not have to be packed and stored aseptically, but if you want to ensure the sterility of the goods to be packaged, then it is disadvantageous to determine a certain permeability of the plastic lid (with the opening device) for gases.
  • the top floor can be produced, for example, from a support material additionally coated with a metal foil (e.g. aluminum), which has a plug made of plastic only at one or more small points, so to speak. Since this stopper can be kept very small compared to the surface of the top floor and is also thick, the permeability of such an top floor, although it has a practical and easily tearable opening device, can be made largely impermeable to gases.
  • a metal foil e.g. aluminum
  • the tearing device has a molded-on gripping device, e.g. a molded ring, handle or the like.
  • a molded-on gripping device e.g. a molded ring, handle or the like.
  • a large number of gripping devices for liquid packs are known per se.
  • gripping devices can be produced in a diverse and particularly suitable form, so that the objectives sought according to the invention are particularly easy to achieve.
  • the manufacturing process is also influenced very favorably if the tear device is preferably injection-molded in one piece with the gripping device.
  • the tearing device passes through the top panel through a hole through which the plastic material can flow from one side of the top panel into the molding space on the other side thereof during injection molding.
  • the cavities in the individual mold parts of the tool are designed in such a way that the tearing device, like a rivet, crosses over the edge of the hole like a mushroom. If the gripping device is grasped by the user and the force is directed to the tearing device to open the opening device, then the rivet-like design of the tearing device leads to the fact that the tearing forces are guided to the edge of the hole in the top floor and from there to the perforation line, which according to the invention and is conveniently arranged next to a hole edge at a short distance. With the new tear device, the paper or carrier material that is to be torn open so that the pouring opening is created is gripped securely and well, so that the opening is undoubtedly guaranteed for the user, and without additional tools such as e.g. Knife or scissors.
  • the opening at the tip of the spout of the pouring opening is due to the special attachment of the rivet-like part of the tearing device at the indicated position of the perforation line a Optimal initiation of the tearing process chosen where the liquid jet in any case runs out during pouring, namely at the tip of the spout.
  • the injected plastic parts overlap the carrier material at least partially on the inside and on the outside of the pack, in order to provide good anchoring between the tearing device and carrier material.
  • This results in bead-shaped parts which, due to the inventive measures just mentioned, advantageously remain in the part which is torn up or torn open and forms the pouring opening.
  • bead parts do not remain at the tip of the spout, so that nothing can disturb the proper pouring of the filling material.
  • a particularly preferred embodiment is designed in such a way that the tearing device outside of the pack has a radially outside arrangement with respect to the pouring opening and runs at least partially along the perforation line Has groove for reclosing the pouring opening.
  • This advantage is the installation of the groove and consequently good reclosing. It is useful if the width or thickness of the groove is chosen so that the thickness of the substrate (paper thickness) fits well into the groove.
  • the tear device according to the invention through its manufacture from plastic and the other features and measures mentioned above, allows the groove to be attached in a simple manner and in any configuration: also in such a way that the part which is torn up or torn off (to form the pouring opening) ) after the package has been partially emptied, it is folded back into the pouring opening or placed on and pressed in.
  • the indentation takes place in a manner which is generally known to the end user, so that the paper gets into the groove, as a result of which the closure is held and the opening device is closed.
  • the tearing device is not only rivet-shaped in cross-section, but three-dimensionally like a rivet, ie the hole is preferably circular, so that the tearing device passes through the hole from the outside inwards (with respect to the package), like a rivet, engages over the hole edge in a mushroom-like manner on both sides and thus brings forces introduced into the tearing device into the tearing device when the opening is torn open, in particular at the beginning of tearing, namely to the perforation line arranged directly next to the rivet.
  • the force is at least partially guided further along the perforation line, although in the region of this web the upper floor is no longer grasped from the inside of the pack with the help of the web and is pulled up. This is generally not necessary because the line of perforation is the tear force leads.
  • the reclosing is particularly favored in the last-mentioned embodiment because the tear device can concentrate on a button-like or rivet-like location on the perforation line, but the groove for reclosing still extends over the entire edge of the pouring opening, namely with the aid of the web, which has the groove described outside. It is understood that the web-like part below the groove, i.e. in addition to the surface of the top floor, can also be chamfered inwards and facilitates reclosing and guiding the torn or possibly torn closure.
  • the web has the shape of a ring adapted to the course of the perforation line and the ring also has a rivet-like design at least partially in cross section.
  • the tearing device is not limited to a button-like or rivet-like location, but in the embodiment provided here, at least part of the ring has a rivet-like design in cross section, so that at least on this part of the ring Ausg discernöffnunq is formed by tearing out and the forces are guided via the ring-like web directly to the perforation line.
  • the line of perforations can be circular, oval, like a polygon or the like, preferably again the spout of the pouring opening is arranged as close as possible to an edge of the top of the package.
  • the pouring opening can be opened completely, i.e. the part of the top of the pack lying within the perforation line is completely torn off and can be placed separately next to the pack. Nevertheless, reclosing is possible in a simple and inexpensive manner, as described above.
  • the web extends along its entire extent along the perforation line (U-shaped or circular) except for one to four places that should be arranged at a distance from one another, penetrating the top floor through slits running alongside the perforation line and in each case in cross-section encompasses mushrooms on both sides (outside and inside the pack).
  • the tearing or tearing forces are guided from the gripping device into the tearing device and, apart from the few bridging points of the paper or carrier material, directly from the web next to the perforation line and finally into it.
  • a tearing is guaranteed exactly along the perforation line, without having to sacrifice the other advantages mentioned above essentially.
  • a liquid pack with an upper base 1 made of a carrier material 2, e.g. Cardboard or paper, which is provided on its outer side with a plastic coating 3 and also on its inner side with a plastic coating 4.
  • a carrier material e.g. Cardboard or paper
  • the top shelf 1 is provided with an opening device, generally designated 5.
  • the opening device 5 has a perforation line 6 (shown as a dash-dotted line in FIGS. 3 and 5), which can also be seen in cross section in FIGS. 2 and 4.
  • a perforation line 6 which here is a self-contained oval line
  • tear device 7 in the form of the rivet according to the embodiment according to FIGS. 2 and 3 with integrally formed web 8 and gripping device 9; and with cross-section rivet-like web 7 'according to the embodiment of Figures 4 and 5.
  • the pouring opening 10 is ultimately formed by the perforation line 6, which corresponds to the tear-off part 11 of the top panel (within the perforation line 6).
  • the rivet-shaped tearing device 7 is located at the point closest to the side edge 12 of the package and forming the spout tip, shown at 13 in FIG. This practically forms a circular hole 13 'shown in Figure 3 by a broken line.
  • the hole 13 ' is like the rivet-like tearing device 7 in its spatial shape within the perforation line 6, i.e. thus in the tearable part 11 of the top panel 1.
  • From this point 13 of the rivet 7 extends the annular web 8, which according to the illustration in FIG. 2 is only sealed onto the top plastic layer 3 of the top panel 1.
  • the lower outer edge of the annular web 8 is in alignment with the perforation line 6, as can be seen on the right in FIG. 2.
  • the annular web 8 has the groove 14 which is open to the outside and which is arranged radially on the outside with respect to the pouring opening 10 and which completely rotates in an annular manner.
  • the thickness D of the groove 14 (FIG. 2 on the right) is greater than or equal to the paper layer 2, including the plastic layers 3 and 4.
  • the rivet-like tear device 7 has a wedge-shaped bevel for better reclosure on.
  • FIG. 5 is a view of the top floor 1 from within the package in the still unopened state.
  • FIG. 5 in the second embodiment therefore, with the two parallel, oval, continuous lines, the mushroom-shaped bead of the rivet-like tearing device 7 'which looks out inside the pack, but which is connected to the upper ring web 8 only via the longitudinal slots 16.
  • the tear-off part 11 of the top floor is connected to the outer part of the top floor via the four points mentioned, where the perforation line 6 can be seen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Bag Frames (AREA)
EP88107477A 1987-06-17 1988-05-10 Verpackung mit Öffnungsvorrichtung Expired - Lifetime EP0295423B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107477T ATE88151T1 (de) 1987-06-17 1988-05-10 Verpackung mit oeffnungsvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2288/87 1987-06-17
CH2288/87A CH673821A5 (pt) 1987-06-17 1987-06-17

Publications (3)

Publication Number Publication Date
EP0295423A2 EP0295423A2 (de) 1988-12-21
EP0295423A3 EP0295423A3 (en) 1989-03-22
EP0295423B1 true EP0295423B1 (de) 1993-04-14

Family

ID=4230273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107477A Expired - Lifetime EP0295423B1 (de) 1987-06-17 1988-05-10 Verpackung mit Öffnungsvorrichtung

Country Status (10)

Country Link
US (1) US4828138A (pt)
EP (1) EP0295423B1 (pt)
JP (1) JPS63317453A (pt)
AT (1) ATE88151T1 (pt)
AU (1) AU600366B2 (pt)
CA (1) CA1316130C (pt)
CH (1) CH673821A5 (pt)
DE (1) DE3880205D1 (pt)
ES (1) ES2039500T3 (pt)
SU (1) SU1755708A3 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679850A5 (pt) * 1989-09-05 1992-04-30 Tetra Pak Romont
US5829672A (en) * 1997-05-14 1998-11-03 Tetra Laval Holdings & Finance, Sa Cut-out integrated closure and forming method therefor
CZ9804185A3 (cs) * 1998-12-16 2001-12-12 Toma Trade, Spol. S R. O. Obal a pouľití tohoto obalu
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
US6328203B1 (en) * 2001-05-04 2001-12-11 International Paper Company Opening feature for beverage container
WO2003047981A2 (en) * 2001-12-06 2003-06-12 Gabriel Cabelli Hand held fluent dispensing containers
SE523936C2 (sv) 2001-12-19 2004-06-01 Tetra Laval Holdings & Finance Formsprutningsverktyg samt sätt att formspruta
DE102004061647B4 (de) * 2004-12-17 2008-02-07 Sig Technology Ag Verfahren zum Applizieren eines Öffnungs-und Ausgießelements auf einen Behälter
WO2015101427A1 (en) * 2013-12-30 2015-07-09 Tetra Laval Holdings & Finance S.A. Package material blank, package with such device and method for manufacturing an opening device
EP2889231A1 (en) * 2013-12-30 2015-07-01 Tetra Laval Holdings & Finance SA Packaging material and packaging container having an opening device made therefrom
DK3140115T3 (en) * 2014-05-07 2019-03-11 Tetra Laval Holdings & Finance PACKAGING MATERIAL LAMINATE STRUCTURE
US11066223B2 (en) 2014-06-19 2021-07-20 Tetra Laval Holdings & Finance S.A. Opening device, method for manufacturing such opening device and packaging material for use in said method
MX2017008156A (es) 2014-12-22 2017-09-18 Tetra Laval Holdings & Finance Material de envase y recipiente de envase formado con el material.
RU2640981C1 (ru) * 2014-12-22 2018-01-12 Тетра Лаваль Холдингз Энд Файнэнс С.А. Упаковочный материал и упаковочный контейнер, сформированный из такого материала
TR201909404T4 (tr) 2015-02-09 2019-07-22 Tetra Laval Holdings & Finance Ambalaj malzemesi ve söz konusu malzeme ile oluşturulan ambalaj kabı.
ITUA20164389A1 (it) * 2016-06-15 2017-12-15 Gd Spa Apparato e procedimento per la formatura del dispositivo di apertura di contenitori per liquidi.
JP6436143B2 (ja) * 2016-10-14 2018-12-12 トヨタ自動車株式会社 締結具

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302824A (en) * 1964-11-24 1967-02-07 Reynolds Metals Co Container and method of making the same or the like
US3404799A (en) * 1965-04-16 1968-10-08 Continental Can Co Container
GB1407601A (en) * 1972-01-06 1975-09-24 Metal Box Co Ltd Container closures
NL7807892A (nl) * 1977-07-28 1979-01-30 Tokan Kogyo Co Ltd Deksel voor een houder voorzien van een kunststofdeel dat kan worden geopend, en werkwijze voor het maken van een dergelijke deksel.
JPS59152161A (ja) * 1983-02-15 1984-08-30 東洋製罐株式会社 易開封性ヒ−トシ−ル蓋

Also Published As

Publication number Publication date
AU600366B2 (en) 1990-08-09
JPS63317453A (ja) 1988-12-26
EP0295423A3 (en) 1989-03-22
EP0295423A2 (de) 1988-12-21
SU1755708A3 (ru) 1992-08-15
ATE88151T1 (de) 1993-04-15
AU1776488A (en) 1988-12-22
DE3880205D1 (de) 1993-05-19
CH673821A5 (pt) 1990-04-12
CA1316130C (en) 1993-04-13
ES2039500T3 (es) 1993-10-01
US4828138A (en) 1989-05-09

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