EP0389792B2 - Verpackung, insbesondere für unter Druck stehende Flüssigkeiten - Google Patents

Verpackung, insbesondere für unter Druck stehende Flüssigkeiten Download PDF

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Publication number
EP0389792B2
EP0389792B2 EP90103401A EP90103401A EP0389792B2 EP 0389792 B2 EP0389792 B2 EP 0389792B2 EP 90103401 A EP90103401 A EP 90103401A EP 90103401 A EP90103401 A EP 90103401A EP 0389792 B2 EP0389792 B2 EP 0389792B2
Authority
EP
European Patent Office
Prior art keywords
end wall
cover strip
container body
emptying opening
container
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
EP90103401A
Other languages
English (en)
French (fr)
Other versions
EP0389792B1 (de
EP0389792A1 (de
Inventor
Bengt Björck
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
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
Family has litigation
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Application filed by Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP0389792A1 publication Critical patent/EP0389792A1/de
Publication of EP0389792B1 publication Critical patent/EP0389792B1/de
Application granted granted Critical
Publication of EP0389792B2 publication Critical patent/EP0389792B2/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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/008—Materials of container end panel
    • B65D2517/0082—Coated or laminated metal
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0089—Unusual details
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5024—Material
    • B65D2517/5032—Laminated
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5072—Details of hand grip, tear- or lift-tab
    • B65D2517/5083—Details of hand grip, tear- or lift-tab with means facilitating initial lifting of tape, e.g. lift or pull-tabs

Definitions

  • the present invention relates to a packing container according to the opening part of claims 1.
  • Such containers are usually of a non-returnable character containing liquid content especially pressurized contents. They comprise at least one plane end wall, an emptying opening incorporated in the end wall and an outer cover ship which is applied over the emptying opening to the outside of the end wall.
  • Such containers are described in US-A-4 397 401. However, there are high risks of unintentional ruptures.
  • These packages generally consist of a cylindrical can body provided with a base, the upper end of the can body being dosed with the help of a substantially plane end wall which is seamed onto the cylindrical can body.
  • the cylindrical can body generally consists of plastic or metal, e.g. iron or aluminium. Whereas the plane end wall as a rules always consists of sheet aluminium.
  • a very usual opening arrangement on such known can packages has a weakened or openable part in the plane end wall which by means of a pull-ring fixed to the weakened or openable part is adapted so that it can be completely pulled off to expose an emptying opening through which the contents of the package can be made accessible.
  • a relatively soft material preferably aluminium, which is both soft and easy to process, but which from a point of view of manufacture is a very energy-consuming and thus cost-demanding metal.
  • Another opening arrangement on known can packages of the type which has been described above consists of an emptying opening incorporated in the end wall of the drum which is covered by a cover strip or similar closure device glued detachably onto the outside of the end wall.
  • This known opening arrangement too is relatively simple and easy to manufacture and as a rule functions well, but it has the disadvantage, among other things, especially in the case of can packages for pressurized contents, that it requires environmentally doubtful and expensive glue to provide the joint between the cover strip and durability.
  • DE-A-34 07 899 describes a container for drinks containing CO 2 comprising a cylindrical container body and two end walls being symmetrically inserted into the open ends of said container body. While one of these end walls is inserted into and sealed onto the inside of the lower end of the container body before filling the drinks the upper end wall is used as a cover and is inserted into and sealed onto the inside of the upper edge of the container body after filling. In order to release the filling goods it is necessary to break up the sealing zone or to pierce the packaging material in order to form an emptying opening.
  • This invention is characterized in claim 1.
  • the sealing joint between the cover strip and the end wall of the package is produced by inductive heating in a manner known in itself of the metal layers incorporated in the cover strip and the end wall respectively, which has been found to bring about that the package can be closed in a rapid and simple manner and that the actual closing process can be easily monitored both with regard to heating period and temperature and that the sealing joint will be tighter and more durable than, for example, in the case of glueing.
  • the package which has been given the general reference designation 1
  • the package which has been given the general reference designation 1
  • the package which has been given the general reference designation 1
  • the package which has been given the general reference designation 1
  • the package which has been given the general reference designation 1
  • the package which has been given the general reference designation 1
  • the package which has been given the general reference designation 1
  • the end wall 3 has an emptying opening 4 incorporated beforehand which is covered on the top by means of an outer cover strip 5 applied to the outside of the end wall.
  • the cover strip 5 comprises on the one hand a mounting part 5a, which is connected detachably to the end wall 3 over the emptying opening 4, and on the other hand a readily accessible gripping part 5b by means of which the cover strip 5 is adapted to be removed on opening of the package.
  • the cover strip 5 is manufactured from a laminated material comprising a central layer of material strong in tension, e.g. iron, and outer coatings 7 and 8 of weldable plastic, e.g. polyester (preferably polyethylene terephthalate).
  • Figure 2 further illustrates that the end wall 3 too is manufactured from a material comprising a central metallic layer 9 with an outer coating 10 of weldable plastics, e.g. polyester (preferably polyethylene terephthalate).
  • the end wall 3 has a downwards directed edge portion 3a serving as a fastening means which extends unbroken around the whole periphery of the end wall and which, at least partially, is inserted in, and is fastened to, the inside of the can body 2 along a liquid-tight and mechanically durable sealing joint around the whole thus inserted part of the edge portion 10 of the end wall.
  • the joint between the outer cover strip 5 and the end wall 3, on the one side should be sufficiently strong to be able to withstand the internal pressure of the package, which in the case of contents such as beer, refreshing beverages and similar carbonated drinks may go up to approx. 7 bar, but that the joint, on the other side, should not be so strong that, on opening of the package, an intentional pulling off of the cover strip is made impossible or is made unnecessarily difficult.
  • a desirable optimum joint is obtained in that the cover strip 5 and the end wall 3 are connected with one another along a sealing joint formed by surface fusion between the plastic coatings 8 and 10 respectively facing one another, and it has been found in particular that a sealing joint which functions well and is easily controllable can be obtained if the cover strip 5 and the end wall 3 are joined to one another by inductive heating of metal layers 6 and 9 incorporated in the cover strip 5 and the end wall 3 respectively.
  • Such an inductive heat sealing is both rapid and simple and can be carried out with the help of existing conventional equipment.
  • the method has the further advantage that it can be easily monitored both with regard to heating period and to temperature, so that a mechanically durable sealing joint which is liquid-tight but easily breakable is obtained around the whole emptying opening 4.
  • the can body 2 which is of the conical shape indicated in Figures 1 and 2, is also manufactured appropriately from a material comprising a thin inner metal layer 11 and at least one outer coating 12 of weldable plastic, preferably polyethylene terephthalate, facing towards the inside of the package, as a result of which the joint between the inserted part of the edge portion 10 of the end wall 3 and the inner plastic coating 12 of the container body 2 can also be achieved by inductive heating in a manner known in itself.
  • a material comprising a thin inner metal layer 11 and at least one outer coating 12 of weldable plastic, preferably polyethylene terephthalate, facing towards the inside of the package, as a result of which the joint between the inserted part of the edge portion 10 of the end wall 3 and the inner plastic coating 12 of the container body 2 can also be achieved by inductive heating in a manner known in itself.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Cartons (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (4)

  1. Verpackungsbehälter mit einem Behälterkörper (2), mindestens einer Endwand (3), einer Gießöffnung (4) in der Endwand (3) und einem äußeren Verschlußstreifen (5), der über der Gießöffnung (4) an der Außenseite der Endwand (3) angebracht ist, wobei der Verschlußstreifen (5) sowie die Endwand (3) aus einem Material bestehen, das eine Metallschicht (6, 9) und mindestens einen äußeren Überzug (8, 10) von schweißfähigem Kunststoff aufweist, und wobei der Verschlußstreifen (5) mit der Endwand (3) um die gesamte Gießöffnung (4) herum entlang einer Schweißverbindung verbunden ist, die flüssigkeitsdicht, aber aufbrechbar ist und durch Oberflächenverschmelzung von Kunststoffmaterial gebildet ist,
    dadurch gekennzeichnet, daß
    die Endwand (3) einen nach unten gerichteten konischen Randbereich (3a) aufweist, der als Befestigungsmittel zum Befestigen der Endwand (3) an dem Behälterkörper dient und mindestens teilweise in das Innere des Behälterkörpers (2) eingesetzt ist, und dessen äußerer Kunststoffüberzug (10) flüssigkeitsdicht und mechanisch beständig mit der Innenseite des Behälterkörpers (2) verschweißt ist, daß der Behälterkörper (2) konisch geformt ist, wobei die Endwand (3) mit der Innenseite des oberen offenen Endes des nach oben verjüngten konischen Behäterkörpers (2) versiegelt ist, und daß die Schweißverbindung um die Gießöffnung (4) herum durch den äußeren Kunststoffüberzug (8, 10) des Verschlußstreifens (5) und der Endwand (3) gebildet ist.
  2. Verpackungsbehälter nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Metallschicht (9) der Endwand aus Eisen besteht.
  3. Verpackungsbehälter nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß
    die Metallschicht (6) des Verschlußstreifens aus Eisen besteht.
  4. Verpackungsbehälter nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, daß
    die Kunststoffüberzüge aus einem Polyester, bevorzugt Polyethylenterephthalat, gebildet sind.
EP90103401A 1989-03-29 1990-02-22 Verpackung, insbesondere für unter Druck stehende Flüssigkeiten Expired - Lifetime EP0389792B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901092A SE500525C2 (sv) 1989-03-29 1989-03-29 Förpackningsbehållare för flytande, i synnerhet trycksatt fyllgods
SE8901092 1989-03-29

Publications (3)

Publication Number Publication Date
EP0389792A1 EP0389792A1 (de) 1990-10-03
EP0389792B1 EP0389792B1 (de) 1993-08-04
EP0389792B2 true EP0389792B2 (de) 1998-03-18

Family

ID=20375482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103401A Expired - Lifetime EP0389792B2 (de) 1989-03-29 1990-02-22 Verpackung, insbesondere für unter Druck stehende Flüssigkeiten

Country Status (11)

Country Link
EP (1) EP0389792B2 (de)
JP (1) JP2836898B2 (de)
AT (1) ATE92421T1 (de)
AU (1) AU625865B2 (de)
CA (1) CA2011319C (de)
DE (2) DE69002499D1 (de)
DK (1) DK0389792T3 (de)
ES (1) ES2044267T5 (de)
GR (1) GR3026409T3 (de)
RU (1) RU1833338C (de)
SE (1) SE500525C2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10034298A1 (de) * 2000-07-14 2002-01-24 Steinbeis Ppl Gmbh Verschlussanordnung an einer Öffnung in einer Behälterwand
EP1209085A1 (de) * 2000-11-17 2002-05-29 SEDA S.p.A. Verfahren zur Herstellung eines Behälters zur Aufnahme von festen oder gefrorenen Nahrungsmitteln
USD906799S1 (en) 2020-01-28 2021-01-05 Blue Buffalo Enterprises, Inc. Vacuum package

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US898293A (en) * 1907-10-16 1908-09-08 Warren Mfg Co Container.
CH563284A5 (de) * 1972-05-20 1975-06-30 Hesser Ag Maschf
AT361313B (de) * 1979-04-19 1981-03-10 Vmw Ranshofen Berndorf Ag Metallflasche
EP0059635B1 (de) * 1981-03-02 1985-06-05 Toyo Seikan Kaisha Limited Leicht zu öffnender Verschluss für Behälter und Verfahren zu dessen Herstellung
CH650210A5 (de) * 1981-03-17 1985-07-15 Aluminiumwerke Ag Rorschach Konservendose mit dosenkoerper aus weissblech.
JPS5993639A (ja) * 1982-11-19 1984-05-30 東洋製罐株式会社 耐衝撃性易開封性容器蓋
JPS59126919U (ja) * 1983-02-15 1984-08-27 四国化工機株式会社 紙主体密封容器
JPS59186219U (ja) * 1983-05-31 1984-12-11 大日本印刷株式会社 剥取りテ−プ付容器
CH665400A5 (de) * 1984-04-24 1988-05-13 Weidenhammer Packungen Kombidose.
JPS61142141A (ja) * 1984-12-14 1986-06-30 東洋製罐株式会社 密封容器
JPS61113217U (de) * 1984-12-26 1986-07-17

Also Published As

Publication number Publication date
DE69002499T4 (de) 1994-08-11
EP0389792B1 (de) 1993-08-04
JP2836898B2 (ja) 1998-12-14
SE8901092L (sv) 1990-09-30
AU625865B2 (en) 1992-07-16
JPH02282043A (ja) 1990-11-19
DE69002499T3 (de) 1998-05-28
AU5232790A (en) 1990-10-04
ES2044267T5 (es) 1998-06-16
CA2011319C (en) 1998-09-15
DE69002499D1 (de) 1993-09-09
EP0389792A1 (de) 1990-10-03
ES2044267T3 (es) 1994-01-01
DK0389792T3 (da) 1993-09-27
DE69002499T2 (de) 1993-11-18
SE500525C2 (sv) 1994-07-11
SE8901092D0 (sv) 1989-03-29
RU1833338C (ru) 1993-08-07
CA2011319A1 (en) 1990-09-29
ATE92421T1 (de) 1993-08-15
GR3026409T3 (en) 1998-06-30

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