EP0129102A2 - Couvercle avec dispositif d'ouverture - Google Patents

Couvercle avec dispositif d'ouverture Download PDF

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Publication number
EP0129102A2
EP0129102A2 EP84106022A EP84106022A EP0129102A2 EP 0129102 A2 EP0129102 A2 EP 0129102A2 EP 84106022 A EP84106022 A EP 84106022A EP 84106022 A EP84106022 A EP 84106022A EP 0129102 A2 EP0129102 A2 EP 0129102A2
Authority
EP
European Patent Office
Prior art keywords
tear
open part
lid
barrier layer
layer
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
EP84106022A
Other languages
German (de)
English (en)
Other versions
EP0129102B1 (fr
EP0129102A3 (en
Inventor
Norbert Prof. Dr.-Ing. Buchner
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0129102A2 publication Critical patent/EP0129102A2/fr
Publication of EP0129102A3 publication Critical patent/EP0129102A3/de
Application granted granted Critical
Publication of EP0129102B1 publication Critical patent/EP0129102B1/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
    • B65D5/42—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
    • B65D5/706—Tearable flaps defined by score-lines or incisions provided in a separate end closure of a tubular container
    • 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
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab

Definitions

  • a lid of this type which has become known, for example, from EP-A-0004834, consists of a relatively thick, outer carrier layer made of thermoplastic material and a thin, inner barrier layer made of an aluminum / plastic laminate.
  • a weakening line is arranged in the carrier layer of the lid which surrounds a tear-open part.
  • the tear when the tear-open part is removed from the container lid requires a much higher force than the tear because of the different physical conditions. It is therefore desirable to design the container lid of the type specified, by means of which the tear-open part can be easily torn and torn.
  • the container lid according to the invention with the characterizing features of the main claim has the advantage that, despite the weakened metallic barrier layer in the start area, the tightness of the container is ensured, since the inner sealing layer made of plastic covers the weakened barrier layer, and the sealing layer itself during the weakening process of the metallic barrier layer the elasticity of the plastic does not suffer any damage.
  • the measures listed in the subclaims permit advantageous developments of the container lid mentioned in the main claim.
  • the container lid according to the invention can be produced in large numbers and in a simple manner by a method having the characterizing features of claim 5.
  • Figure 1 shows the upper part of a container with a first embodiment of a lid in a diagrammatic representation
  • Figure 2 shows a part of the container lid according to Figure 1 in cross section in the plane II-II of Figure 1
  • Figure 3 shows the upper part of a container with a second Exemplary embodiment of a lid in a diagrammatic representation
  • FIG. 4 a part of the container lid according to FIG. 3 in cross section in the plane IV-IV of FIG. 3.
  • a packaging container with a body 10 made of a multilayer packaging material is closed at its upper opening with a lid 11 which has an easy-to-use opening device for removing the contents.
  • the fuselage 10 and the lid 11 have a plan in the form of a square with rounded corners.
  • the lid 11 has a U-shaped edge fold 12 which engages around the opening edge of the fuselage 10 and is sealed or welded to it. It is formed by deep drawing or deep drawing.
  • a multilayer composite material is used for the production of the cover 11, which has an outer layer 14 made of plastic, a middle layer 15 made of metal, preferably aluminum, and an inner layer 16 made of a heat-sealable plastic.
  • the individual layers can be connected to one another by means of a karsch glue.
  • the outer layer 14, which gives the lid its stiffness and strength as a carrier layer, is approximately 100 to 400 ⁇ m, preferably 200 ⁇ m thick and consists of a thermoplastic material such as polyvinyl chloride (PVC), polyester (PETP), polystyrene (PS), polycarbonate (PC ) or similar.
  • the middle layer 15, which contributes to a high tightness and gas barrier of the cover 11, consists of an aluminum or steel foil with a thickness of 20 to 40 ⁇ m.
  • the inner layer 16, which is used for heat sealing or welding to the body 10 and acts as an insulating layer has a thickness of about 50 / um and consists of polyethylene (PE), polypropylene (PP), Polyvinylid_enchlorid (PVDC) or polyester (PETP) .
  • the opening device in the cover 11 has a removable tear-open part 20 which is surrounded by a line of weakening 21.
  • the tear-open part 20 can have various shapes, for example a teardrop shape, as shown in FIGS. 1 and 3, a circular area for inserting a drinking straw or also a full tear-open area adapted to the lid level.
  • the cover can also have a second tear-open part, which is used to form a ventilation opening.
  • the line of weakness 21 is formed in the carrier layer 14 of the cover 11 as a notch 22 which penetrates the carrier layer 14 completely or almost completely.
  • the notch 22 is preferably formed by melting and displacing the plastic of the carrier layer 14 in the region of the weakening line 21 by means of a heated notching tool.
  • the inner, metallic barrier layer 15 is also weakened in register with the notch 22.
  • the weakening of the barrier layer 15 is designed as a thinning 41 of the barrier layer 15 in the starting section 27 by stretching.
  • Such a thinning 41 in register with the notch 22 is effected by moving or displacing the tear-open part 20 relative to the adjacent part of the cover 11 transversely to the plane of the cover by means of a stamp.
  • the displacement path is dimensioned such that the metallic barrier layer J5 is plastically stretched and the adjacent sealing layer 16 is stretched in the elastic range.
  • a weakening of the barrier layer J5 can also be achieved by pressing, for example when notching the carrier layer with a non-flat tool or with a different hard surface.
  • the barrier layer 15 breaks in register with the notch 22, while the more elastic sealing layer expands 16 made of plastic. After the stamp has been removed, the built-up tensions of the sealing layer 16 partially pull back the tear-open part 20, but the break 42 of the metallic barrier layer 15 is retained, as is shown in the exemplary embodiment according to FIG. In the manner described, the barrier layer 15 can be weakened or broken not only in the start section 27 of the tear-open part 20 but also in the entire extent of the notch 22.
  • the offset tear-open part 20 can be pushed back into the plane of the lid mirror so that the flanks of the fracture 42 lie against one another.
  • a grip tab 25 is fastened in its starting section 27 to tear open the tear-open part 20 from the cover 11.
  • the grip tab 25 is preferably welded or glued to the outer carrier layer 14 of the tear-open part 20 at 43.
  • the grip tab 45 which consists of a thermoplastic or a plastic / metal laminate, covers the tear-open part 20 and is outside the notch 22 with the top of the carrier layer 14 of the cover 11 by a self-contained sealed seam 47 connected.
  • a grip tab 45 sealed in this way outside the notch 22 in a narrow contour on the top of the cover compensates for the loss of gas tightness in the area of the break 42 of the barrier layer 15.
  • the strength of the sealing seam 47 is set lower than that of the connection 46 between the grip tab 45 and the tear-open part 20
  • the different strengths of the seals 46 and 47 by means of which a slight peeling of the grip tab 45 from the lid 11 outside the tear-open part 20 and a firm connection between the grip tab 45 and the start section 27 of the tear-open part 20 are achieved, are selected by the choice of different sealing parameters such as Temperature, pressure, time or material change in the surface of the cover 11 and / or grip tab 45 inside or outside the weakening line 21 is achieved, for example, by localized application of heat sealants with a connection-increasing or weakening effect.
  • a composite material with three layers is specified above for the production of a cover according to the invention.
  • the use of composite materials with a different structure is also possible within the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
EP84106022A 1983-06-15 1984-05-26 Couvercle avec dispositif d'ouverture Expired EP0129102B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3321572A DE3321572A1 (de) 1983-06-15 1983-06-15 Behaelterdeckel mit oeffnungseinrichtung
DE3321572 1983-06-15

Publications (3)

Publication Number Publication Date
EP0129102A2 true EP0129102A2 (fr) 1984-12-27
EP0129102A3 EP0129102A3 (en) 1985-12-11
EP0129102B1 EP0129102B1 (fr) 1988-04-20

Family

ID=6201536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106022A Expired EP0129102B1 (fr) 1983-06-15 1984-05-26 Couvercle avec dispositif d'ouverture

Country Status (4)

Country Link
US (1) US4513876A (fr)
EP (1) EP0129102B1 (fr)
JP (1) JPS6013654A (fr)
DE (2) DE3321572A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11047167B2 (en) 2018-02-22 2021-06-29 Vkr Holding A/S Vacuum insulating glass units based on topographic representations

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE462034B (sv) * 1983-05-19 1990-04-30 Akerlund & Rausing Licens Ab Oeppningsanordning foer foerpackningar
US4562936A (en) * 1985-02-12 1986-01-07 The Procter & Gamble Company Easy-open laminated container with optional reclosing means and method of making
DE3666792D1 (en) * 1985-10-04 1989-12-14 Alcan Rorschach Ag Pour opening in a container cover with a pull tab , and production of this opening
DE3622795A1 (de) * 1986-07-07 1988-01-21 Bosch Gmbh Robert Oeffnungseinrichtung an einem verpackungsbehaelter
CA1284624C (fr) * 1986-08-09 1991-06-04 Yoshihiko Kawakami Couvercle pour boite cylindrique
GB2209327A (en) * 1986-11-13 1989-05-10 Hans Rausing A packing container for liquid contents
US4757914A (en) * 1987-01-27 1988-07-19 Continental Can Company, Inc. Laminated closure for a plastic container
JPH01294434A (ja) * 1987-12-22 1989-11-28 Ajinomoto Co Inc 容器の蓋構造およびその製造方法
US4892227A (en) * 1988-04-21 1990-01-09 Packaging Resources Incorporated High barrier plastic container and method of making same
US4890759A (en) * 1989-01-26 1990-01-02 Aluminum Company Of America Retortable container with easily-openable lid
US4946061A (en) * 1989-09-25 1990-08-07 Shell Oil Company Reclosable opening device for a container
US5079059A (en) * 1990-06-25 1992-01-07 Redex Packaging Corp. Strippable seal mechanism
US5303838A (en) * 1992-09-30 1994-04-19 Portola Packaging, Inc. Frangible fitment for container
US6464096B2 (en) 1995-01-30 2002-10-15 Portola Packaging, Inc. Fitment having removable membrane
CN1073952C (zh) * 1995-01-30 2001-10-31 波多拉包装公司 用于包围容器壁中的孔的安装件及其组合体
FR2763884B1 (fr) * 1997-05-30 1999-08-06 Jean Jacques Marin Procede de realisation d'une languette arrachable integree a un materiau et destinee a former l'ouverture de versage d'un emballage de produits liquides ou pulverulents
US6296726B1 (en) 2000-06-13 2001-10-02 Silgan Containers Corporation Method and apparatus for spin welding container closures
US6328203B1 (en) * 2001-05-04 2001-12-11 International Paper Company Opening feature for beverage container
US7413097B1 (en) 2003-08-01 2008-08-19 Portola Packaging, Inc. Tamper-evident closure and method of making same
US7378625B2 (en) * 2004-03-09 2008-05-27 Ball Corporation Microwavable metallic container
US8080770B2 (en) * 2004-03-09 2011-12-20 Ball Corporation Microwavable metallic container
US7112771B2 (en) * 2004-03-09 2006-09-26 Ball Corporation Microwavable metallic container
USD637489S1 (en) 2010-12-10 2011-05-10 Pactiv Corporation Pull grip feature of a container lid
USD638704S1 (en) 2010-12-10 2011-05-31 Pactiv Corporation Container lid
RS60692B1 (sr) * 2017-04-05 2020-09-30 Gregor Anton Piech Metalni poklopac limenke
US20210007540A1 (en) * 2018-04-23 2021-01-14 2266170 Ontario Inc. Capsules, Beverage Brewing Systems And Fabrics With Optimum Filtration Characteristics
WO2021055578A1 (fr) * 2019-09-18 2021-03-25 Jabil Inc. Fermeture intégrée et récipient

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1319286A (fr) * 1962-04-06 1963-02-22 United Shoe Machinery Corp Fermetures déchirables pour récipients
US3314569A (en) * 1965-01-27 1967-04-18 Mayer & Co Inc O Container closure
DE2023923A1 (de) * 1969-05-16 1970-12-17 Aluminum Co Of America Laminierte Metallbehälter-Wand mit einer einteiligen Öffnungseinrichtung sowie Verfahren zu deren Herstellung
EP0004834A2 (fr) * 1978-04-10 1979-10-17 AB Akerlund & Rausing Eléments de fermeture pour récipients
US4267937A (en) * 1975-09-12 1981-05-19 Ab Akerlund & Rausing Tear opening device for containers
EP0060411A1 (fr) * 1981-03-12 1982-09-22 Tetra Laval Holdings & Finance SA Dispositif d'ouverture pour emballage
EP0104548A2 (fr) * 1982-09-23 1984-04-04 Robert Bosch Gmbh Couvercle de récipient avec dispositif d'ouverture

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403710A (en) * 1981-05-13 1983-09-13 Toyo Seikan Kaisha Ltd. Easily-openable heat seal lid
JPS5873541A (ja) * 1981-10-19 1983-05-02 東洋製罐株式会社 易開封性ヒ−トシ−ル蓋
SE435035B (sv) * 1982-05-10 1984-09-03 Akerlund & Rausing Ab Lengs anvisning rivbar behallardel samt forfarande for dess framstellning

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1319286A (fr) * 1962-04-06 1963-02-22 United Shoe Machinery Corp Fermetures déchirables pour récipients
US3314569A (en) * 1965-01-27 1967-04-18 Mayer & Co Inc O Container closure
DE2023923A1 (de) * 1969-05-16 1970-12-17 Aluminum Co Of America Laminierte Metallbehälter-Wand mit einer einteiligen Öffnungseinrichtung sowie Verfahren zu deren Herstellung
US4267937A (en) * 1975-09-12 1981-05-19 Ab Akerlund & Rausing Tear opening device for containers
EP0004834A2 (fr) * 1978-04-10 1979-10-17 AB Akerlund & Rausing Eléments de fermeture pour récipients
EP0060411A1 (fr) * 1981-03-12 1982-09-22 Tetra Laval Holdings & Finance SA Dispositif d'ouverture pour emballage
EP0104548A2 (fr) * 1982-09-23 1984-04-04 Robert Bosch Gmbh Couvercle de récipient avec dispositif d'ouverture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11047167B2 (en) 2018-02-22 2021-06-29 Vkr Holding A/S Vacuum insulating glass units based on topographic representations
US11261651B2 (en) 2018-02-22 2022-03-01 Vkr Holding A/S Vacuum insulating glass units based on topographic representations

Also Published As

Publication number Publication date
JPS6013654A (ja) 1985-01-24
DE3321572A1 (de) 1984-12-20
EP0129102B1 (fr) 1988-04-20
EP0129102A3 (en) 1985-12-11
US4513876A (en) 1985-04-30
DE3470511D1 (en) 1988-05-26

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