EP0141792B1 - Fermeture - Google Patents

Fermeture Download PDF

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Publication number
EP0141792B1
EP0141792B1 EP84850326A EP84850326A EP0141792B1 EP 0141792 B1 EP0141792 B1 EP 0141792B1 EP 84850326 A EP84850326 A EP 84850326A EP 84850326 A EP84850326 A EP 84850326A EP 0141792 B1 EP0141792 B1 EP 0141792B1
Authority
EP
European Patent Office
Prior art keywords
container
seal
closure
panel
marginal part
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
EP84850326A
Other languages
German (de)
English (en)
Other versions
EP0141792A2 (fr
EP0141792A3 (en
Inventor
Lennart Larsson
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.)
Akerlund and Rausing AB
Original Assignee
Akerlund and Rausing AB
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 Akerlund and Rausing AB filed Critical Akerlund and Rausing AB
Priority to AT84850326T priority Critical patent/ATE42523T1/de
Publication of EP0141792A2 publication Critical patent/EP0141792A2/fr
Publication of EP0141792A3 publication Critical patent/EP0141792A3/en
Application granted granted Critical
Publication of EP0141792B1 publication Critical patent/EP0141792B1/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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/10—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
    • B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/06—Integral, or permanently secured, end or side closures
    • B65D17/12—Closures secured by soldering, welding, or otherwise uniting opposed surfaces

Definitions

  • the present invention relates to a packaging container with a closure, primarily for pressure creating or pressurized filling goods, for instance carbonated drinks.
  • a container closure is useful in applications where the container has relatively thin walls.
  • the combination of container and closure forms a structure where an adequate sealing pressure is obtained in the sealing area between the container and the closure.
  • the object of the invention is to provide a combination of a container and closure having strain resisting sealing characteristics and an inherent controllable deformation resistance against internal pressure as well as handling.
  • the object is also to provide means allowing expansion, created by pressure, of the volume of the package formed by the container and the closure such that a volume in excess to the nominal filling volume may be assumed.
  • a most important, further object is to provide a closure allowing sealing with an acceptable counter-pressure, meaning the provision of a sufficient sealing pressure in the sealing area.
  • the invention provides a packaging container with a closure, the closure comprising at least one panel of a relatively thin and flexible material covering an opening in the packaging container, and a marginal part formed by flexible material and surrounding the panel and attached to the edge of the opening, said marginal part forming circumferential, radially inner and outer seals, the inner one formed entirely between the surfaces in the marginal part and the outer one formed between the marginal part and the container, the radially inner seal of said seals comprising a sealing area between marginal parts forming a fold therein.
  • the container-closure structure is characterized in that the fold has an open end exposed to the internal region of the container.
  • the invention allows an arrangement of seals such that the internal pressure counter-acting sealing strength of said radially inner seal is lower than the corresponding sealing strength of the second seal.
  • the closure forms the end piece of a sleeve shaped container casing, and the sealing area comprises a fold extending circumferentially around the panel, and formed of double panel material layers, the radially outer layer of said internal layers forming said outer seal.
  • the sealing area is formed by double panel material layers, and the radially outer seal is formed by an additional panel material layer integral with said double layers.
  • the reference numeral 10 generally relates to a container closure shown in a partial section view and comprising a lid panel 11 and a marginal part 12.
  • the closure 10 is manufactured from a relative thin flexible material, for instance a laminate comprising an aluminium foil having a thickness in the interval 10 to 200 m and having a coating of a thermoplastic material, preferably a polyolefine, on one or both sides thereof.
  • a relative thin flexible material for instance a laminate comprising an aluminium foil having a thickness in the interval 10 to 200 m and having a coating of a thermoplastic material, preferably a polyolefine, on one or both sides thereof.
  • Other type of materia1/material combinations are of course possible, for instance plastic laminates/ plastic film having a suitable additive for giving the required tightness degree and/or for allowing a specific sealing method.
  • a sealing area comprising a fold 13 extending around the panel 11 is formed in the end closure and exposed to the internal region of the package, which here merely has been shown as a portion of a sleeve wall 14.
  • the fold is formed by folding the margin of the blank forming the closure 10.
  • the fold has an outer rim 15, which is this case alone forms a lip for sealing against the sleeve wall.
  • the seal 16 between the rim and the sleeve is formed with a sufficient sealing pressure for obtaining an acceptable sealing. This pressure is obtained in that a counter-pressure is created by means of a support 17 which is displaceable in the directions of the double arrow 18 and for instance expandable in the directions of the double arrow 18' and which co-operates with a stationary support 19.
  • the sealing technique used may for instance comprise induction welding or high frequency welding, and in this case the material of the end closure 10, at least in the welding area comprises an additive well suited for the actual welding technique.
  • the end closure generally is laminated with a metal foil (not explicitly shown in Figures 1 to 5) along the entire surface thereof.
  • the seal 16 preferably extends along the entire height of the rim 15 and continuously around the sleeve 14.
  • a lacquer layer 20 In order to protect the free edge of the rim, the cut edge, a lacquer layer 20, alternatively a tape or other protective means is arranged along the edge facing the internal region of the package.
  • the fold 13, which is exposed to the internal region of the package, has a seal 22 of so called peelable type.
  • the seal 22 is thus weaker than the seal 16.
  • the seal 22 will break (if such a seal exists, i.e. a seal having a strength higher than zero).
  • the flexible end closure 10 (cover panel 11) then assumes its natural shape according to the broken lines 23 in Figure 1. Due to the increase of volume the pressure decreases inside the container.
  • the seal is protected by this construction, meaning that the risk for leakage and destruction of the contents of the package is reduced at the same time as the fold construction, in the manner mentioned, allows the creation of an acceptable sealing pressure.
  • a lip 15 comprising double material layers 15' and 15".
  • the layer 15' forms a skirt which is folded and sealed against the rim 15" in order to reinforce the end closure.
  • the seal 15'" preferably is of the same strength as the seal 16 and has an extension in the height direction for instance equal to the height of the rim 15". The seal may also be accomplished dot- wise, alternatively along a certain part of the height of the rim.
  • the fold 13 has a peelable seal 22, which at a strain exceeding the maximum load allows resetting of lid panel 11 to the natural position 23 thereof.
  • the free edge of the skirt 15' is turned away from the internal region of the container and in - Figure 1 the skirt is located at the same level as the upper edge of the sleeve 14 and the uppermost portion of the lip 12.
  • edge part 12 is placed in a position below the top edge of the sleeve 14. Such placement implies that the lid panel 11, in the natural position 23 thereof, is protected by the sleeve 14 and/or the skirt 15'.
  • FIG 4 there is shown a version of an end closure where the skirt 15' is shortened and the upper portion of the rim 15" of the marginal part 12 is sealed against the sleeve 14. This seal together with the seal 16 forms the actual sealing of the end closure 10. In the same manner as previously there is a peelable seal 22 in the fold 13 exposed to the internal region of the package.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Seal Device For Vehicle (AREA)
  • Closures For Containers (AREA)

Claims (4)

1. Récipient d'emballage (14) comportant une fermeture, la fermeture comprenant au moins un panneau (11) en matière relativement mince et flexible, qui recouvre une ouverture du récipient d'emballage, et une partie marginale (12, 15) formée par la matière flexible et entourant le panneau et fixée au bord de l'ouverture, ladite partie marginale formant des zones scellées circonférentielles radialement intérieure et radialement extérieure, la zone scellée intérieure étant formée entièrement entre des surfaces de la partie marginale et la zone scellée extérieure étant formée entre la partie marginale et le récipient, la zone scellée radialement intérieure (22) desdites zones scellées comprenant une zone de scellement entre des parties marginales définissant un pli (13), caractérisé en ce que le pli présente une extrémité ouverte du côté de la région intérieure du récipient.
2. Récipient suivant la revendication 1, caractérisé en ce que la force de scellement, s'opposant à la pression interne, de ladite zone scellée radialement intérieure (22) est plus faible que la force de scellement correspondante de la deuxième zone scellée.
3. Récipient suivant la revendication 2, qui consiste en une enveloppe de récipient en forme de manchon (14), caractérisé en ce que la zone de scellement comprend un pli (13) s'étendant cir- conférentiellement autour du panneau et formé de couches de matière de panneau repliées l'une sur l'autre, la couche radialement extérieure (15) desdites couches de matière constituant ladite zone scellée extérieure.
4. Récipient suivant la revendication 2, caractérisé en ce que ladite zone de scellement est formée par des doubles couches de matière de panneau repliées l'une contre l'autre, et en ce que la zone scellée radialement extérieure est formée par une couche de matière de panneau supplémentaire (15') solidaire desdites doubles couches.
EP84850326A 1983-11-07 1984-10-25 Fermeture Expired EP0141792B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84850326T ATE42523T1 (de) 1983-11-07 1984-10-25 Verschluss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8306087A SE444423B (sv) 1983-11-07 1983-11-07 Forslutning till forpackningsbehallare
SE8306087 1983-11-07

Publications (3)

Publication Number Publication Date
EP0141792A2 EP0141792A2 (fr) 1985-05-15
EP0141792A3 EP0141792A3 (en) 1986-09-17
EP0141792B1 true EP0141792B1 (fr) 1989-04-26

Family

ID=20353196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84850326A Expired EP0141792B1 (fr) 1983-11-07 1984-10-25 Fermeture

Country Status (4)

Country Link
EP (1) EP0141792B1 (fr)
AT (1) ATE42523T1 (fr)
DE (1) DE3477917D1 (fr)
SE (1) SE444423B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9005605B2 (en) 2010-08-19 2015-04-14 Allergan, Inc. Compositions and soft tissue replacement methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20012495U1 (de) * 2000-07-19 2001-11-29 Bekuplast Transport- und Lagerbehälter aus Kunststoff, 49824 Ringe Transportbehälter
EP3466824A3 (fr) * 2017-10-04 2019-04-17 Tetra Laval Holdings & Finance S.A. Conteneur d'emballage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE215245C (fr) * 1908-08-29 1909-10-26
US2085458A (en) * 1934-11-19 1937-06-29 Clarence H Walker Box
FR2457223A1 (fr) 1979-05-23 1980-12-19 Scal Gp Condit Aluminium Recipient a parois souples pour produits sous pression
DE3305144A1 (de) * 1983-02-15 1984-08-16 Hoechst Ag, 6230 Frankfurt Innendruckbelastbare verpackung aus flexiblem material fuer fuellgueter, vorzugsweise fluessigkeiten, verfahren zur herstellung einer befuellten verpackung und verwendung der verpackung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9005605B2 (en) 2010-08-19 2015-04-14 Allergan, Inc. Compositions and soft tissue replacement methods

Also Published As

Publication number Publication date
EP0141792A2 (fr) 1985-05-15
DE3477917D1 (en) 1989-06-01
EP0141792A3 (en) 1986-09-17
SE444423B (sv) 1986-04-14
ATE42523T1 (de) 1989-05-15
SE8306087D0 (sv) 1983-11-07
SE8306087L (sv) 1985-05-08

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