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EP1019294A1 - Extremite de boite metallique - Google Patents

Extremite de boite metallique

Info

Publication number
EP1019294A1
EP1019294A1 EP98945410A EP98945410A EP1019294A1 EP 1019294 A1 EP1019294 A1 EP 1019294A1 EP 98945410 A EP98945410 A EP 98945410A EP 98945410 A EP98945410 A EP 98945410A EP 1019294 A1 EP1019294 A1 EP 1019294A1
Authority
EP
European Patent Office
Prior art keywords
seal member
panel
end according
lift tab
attached
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.)
Withdrawn
Application number
EP98945410A
Other languages
German (de)
English (en)
Inventor
George Leo Callewaert
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.)
Spurcourt Ltd
Original Assignee
Spurcourt Ltd
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 Spurcourt Ltd filed Critical Spurcourt Ltd
Publication of EP1019294A1 publication Critical patent/EP1019294A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/185—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures the outer closure being a foil membrane
    • 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
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0031—Membrane
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0071—Lower closure of the 17-type
    • 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
    • B65D2517/0098—Means for preventing dust contacting pouring opening, e.g. a cover over the tear panel

Definitions

  • the present invention relates to a can end having a stay-on type lift tab, and a seal for a can end which provides a safety feature for the lift tab mechanism.
  • beverage are packaged in stay-on type lift tab cans of various sizes. Such beverages include soft drinks, beers, wines and health drinks.
  • An advantage of this form of packaging is that the product may be maintained in an enclosed light-free environment which, if desired, may be pressurised. Once sealed in the can, the possibility of the contents becoming contaminated within the can, either by chance or deliberate intent is very small.
  • a further disadvantage of current can ends having lift tabs is that they are difficult to lift, particularly for people with arthritic finger joints or fragile finger nails.
  • a can end including:
  • the lift tab has a connecting portion which is rotatably connected about an axis perpendicular to the panel.
  • the panel further includes a recess arranged to house the lift tab.
  • the seal member is arranged to be flush with the surface of the panel.
  • the seal member is attached to the panel using an adhesive which is suitable for a food/beverage type application, such as for example, a latex based adhesive.
  • the seal member acts as a tamper-proof or tamper- indicating seal and further includes a flap portion which is free and not attached to the panel. In one embodiment, such a flap portion may be generally substantially opposite the can end lift tab.
  • the seal member may be attached to the panel by adhesive which is arranged substantially along the outer periphery of the seal member, the seal member having a line of weakness parallel to the outer periphery and defining a frangible area of the seal member.
  • the seal member is broken along the line of weakness and the frangible area of the seal member is removed from the can end, leaving the outer periphery of the seal member attached to the panel.
  • the seal member may be advantageously made from the same material as the can, so as to ease recycling.
  • the seal member when the can is made from steel, the seal member is made of steel, and when the can is made from aluminium, the seal member is made of aluminium.
  • the seal member may be made from a laminate or plastics film such as polypropylene.
  • the seal member is preferably continuous and substantially liquid-impermeable to minimise the possibility of contamination of the contents of the can having a can end according to the invention.
  • the seal member is further attached to the lift tab, thus allowing the pull-up end of the lift tab to be lifted when the tab portion is pulled up.
  • the seal member is attached to the pull up end with an adhesive such as an epoxy resin, or by welding.
  • the seal member may be attached to the pull up end by means of a loop threaded through a hole in the pull up end.
  • the lift tab may be pulled upwards; this same action raises the pull-up end of the lift tab and opens the can, or at least begins the opening process, by causing the opposed end to bear on the frangible area and thereby initiating the fracturing process (and form a corresponding opening in the panel) . In the latter instance because the lift tab becomes readily accessible, the remainder of the opening process can be accomplished by lifting the lift tab direct.
  • the seal member may remain attached to the ring pull, it cannot readily be discarded separately after use. It is therefore unlikely to be a cause of litter nuisance.
  • seal member may be such that it can be removed substantially in whole from the panel when the pull-up end is pulled upwards.
  • the seal member may be simple and small, and may be fitted to existing types of cans without the need for major modification of the lift tab mechanism. Similarly, the present facility for cans to be stacked one upon the other need not be compromised by the provision of a can end in accordance with the invention.
  • the seal member may provide, in an inexpensive manner, improvements in both the security and the method of opening of the can.
  • a can including a can body having a closed end and an open end spaced therefrom, a peripheral wall extending between the closed end and the open end, there being a peripheral rim at the open end, and a can end as herein before described engaged with the rim.
  • Figure 1 is a plan view of a conventional can end
  • Figure 2 is a similar plan view showing a can end according to the invention.
  • Figure 3 is a plan view showing a can end according to a second aspect of the invention
  • Figure 4 is a sectional view through the can end of Figure 3 along the line x-x;
  • Figure 5 is a plan view of a can end according to a third aspect of the present invention.
  • Figure 6 is a sectional view through the can end of Figure 5 along the line y-y;
  • Figure 7 is a sectional view through the can end of Figure 5 along the line z-z.
  • FIG. 1 illustrates a conventional can end known in the art, generally indicated by the numeral 1.
  • the can end 1 comprises a disc-shaped panel 2 and a stay-on type lift tab 3.
  • the lift tab 3 is attached to panel 2 at pivot point 4.
  • the panel 2 has a generally ' C 1 shaped score line 5 in its upper surface.
  • the score line 5 can be formed by making a shallow score in the upper surface of the panel 2.
  • the score line 5 as illustrated starts from a point adjacent to the centre of the panel 2 (near pivot point 4) , passes a point adjacent the outer periphery of the panel 2 , and terminates at a further point adjacent the centre of panel 2.
  • the score line 5 as illustrated consists of two parallel scores 51 and 52.
  • the outer score 51 is the main score to be torn by pulling at the lift tab 3, and the inner score 52 is an auxiliary score which facilitates the tearing of outer score 51.
  • the can is opened by lifting the lift tab 3 at point 6. Initially, this causes the other end of the lift tab 3 at point 7 to press down on the surface of the can end 1.
  • the positioning of the lift tab 3 is such as to result in the fracture of the can end 1 at score line 5. Further downwards pressure results in scored portion 8 being pushed down into the can thus creating an opening defined by what was the score line 5. Access to the contents of the can may be gained through this opening.
  • FIG 2 shows how a can end such as that illustrated in Figure 1 can be modified so as to embody the present invention.
  • a plastic seal 21 covers the entire lift tab mechanism (which may be generally as described above with reference to Figure 1) .
  • the seal 21 is bonded to the can end along bond line 22, and is also attached to the lift tab mechanism 25 at point 24.
  • the pull flap 23 is not bonded to the panel 2.
  • Line 26 is parallel to the bond line 22.
  • the pull flap 23 is lifted and the seal 21 tears along the line 26, exposing an uncontaminated portion around the score lines of the lift tab arrangement.
  • the pull flap 23 is pulled back and up, the action causes the lift tab to be raised, causing downward pressure on the scored portion, which results in the fracturing of the can end along the scored line.
  • FIG 3 this shows how a can end such as that illustrated in Figure 1 can be modified so as to embody a second aspect of the present invention.
  • An aluminium seal 20 covers the entire lift tab mechanism (which may be generally as described above with reference to Figure 1) .
  • the seal 20 is bonded to the can end along bond line 22, and is also attached to the lift tab mechanism 25 at point 24.
  • the pull flap 23 is not bonded to panel 2.
  • the pull flap 23 is lifted and seal 20 is removed from the can end 2.
  • the action causes the lift tab to be raised, causing downward pressure on the scored portion, which results in the puncturing of the can and along the scored line 5.
  • the entire seal 20 is removed from the panel 2.
  • FIG. 4 in which like reference numerals have been used to identify like parts corresponding to those in Figures 1, 2 and 3.
  • a loop 30 is attached to seal 21 (or with reference to Figure 3, seal 20) as well as to lift tab 3 at point 24.
  • seal 21 is pulled backwards and upwards
  • loop 30 is also pulled backwards and upwards.
  • the resultant action causes lift tab 3 to be lifted, which in turn initiates the fracturing of can end 1 at score line 5.
  • FIGS 5, 6 and 7, show how a can end such as that illustrated in Figure 1 can be further modified to embody a third aspect of the present invention.
  • An indent 105 is formed in panel 102 to define an indented or recessed portion 106.
  • a lift tab, as illustrated in Figure 1, is provided on indented or recessed portion 106.
  • a steel seal 121 covers the entire lift tab mechanism, and lies flush with the non-indented portion of panel 102.
  • the seal 121 is bonded to the can end along bond line 122, and is also bonded to the lift tab mechanism 125 at point 124.
  • Seal 121 is welded to lift tab mechanism 103 at point 124. When the seal 121 is pulled backwards and upwards, the resultant action causes the lift tab 125 to be lifted which in turn initiates fracturing of can end at the score line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)

Abstract

Cette extrémité de boîte métallique comprend: (a) un panneau (2) en forme de disque, présentant un bord périphérique destiné à s'emboîter sur le rebord du corps d'une boîte métallique, ce panneau présentant une zone de fragilité, (b) une languette de tirage (3), du type reposant sur le panneau (2), montée sur celui-ci et possédant une extrémité de tirage ainsi qu'une extrémité opposée conçue pour reposer sur la zone de fragilité, et (c) un élément de scellement (20) fixé sur le panneau et dont la fixation (22) se situe entre la zone de fragilité et le bord périphérique, de sorte que cet élément de scellement (20) recouvre la zone de fragilité ainsi que la languette de tirage (3).
EP98945410A 1997-10-01 1998-10-01 Extremite de boite metallique Withdrawn EP1019294A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9720804 1997-10-01
GBGB9720804.5A GB9720804D0 (en) 1997-10-01 1997-10-01 Ring pull seal
PCT/GB1998/002945 WO1999016677A1 (fr) 1997-10-01 1998-10-01 Extremite de boite metallique

Publications (1)

Publication Number Publication Date
EP1019294A1 true EP1019294A1 (fr) 2000-07-19

Family

ID=10819866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98945410A Withdrawn EP1019294A1 (fr) 1997-10-01 1998-10-01 Extremite de boite metallique

Country Status (6)

Country Link
EP (1) EP1019294A1 (fr)
AU (1) AU743636B2 (fr)
CA (1) CA2305578A1 (fr)
GB (1) GB9720804D0 (fr)
WO (1) WO1999016677A1 (fr)
ZA (1) ZA988950B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT249001Y1 (it) * 1999-03-05 2003-03-06 Giuseppe Nicola Lattina per bevande con elemento di protezione della zona di aperturaa salvaguardia igienico/ambientale.
DE102015009702B3 (de) * 2015-07-30 2016-12-29 FOLID GmbH Getränkedose mit Schutzfolienlagerraum
DE102016010465A1 (de) 2016-08-31 2018-03-01 Unipress Etiketten & Schilder e.K. Schutzelement zum Abdecken des ausgießseitigen Endes eines Getränkebehälters
DE102016011941B3 (de) * 2016-10-07 2017-10-19 Unipress Etiketten & Schilder e.K. Vorrichtung und Verfahren zum Zuschneiden einer Schutzfolie
DE102016014511A1 (de) 2016-12-07 2018-06-07 Unipress Etiketten & Schilder e.K. Vorrichtung zum Erzeugen eines bahnförmigen Vorprodukts, aus dem Schutzkappen für Behälter herstellbar sind
IT201900006868A1 (it) * 2019-05-15 2020-11-15 Uberto Ravazzoni Contenitore per prodotti alimentari o bevande con dispositivo di protezione e relativo metodo e apparato di applicazione

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362572A (en) * 1966-02-07 1968-01-09 Denis L. Pelley Combined sanitary can top cover and can tab opening hook
ES278701Y (es) * 1984-04-04 1985-09-01 Monjo Burcet Jorge Precinto higienico para botes de bebidas
WO1995028328A1 (fr) * 1994-04-13 1995-10-26 Young Chul Jung Boite de boisson a couvercle superieur hygienique
GB2294445A (en) * 1994-10-29 1996-05-01 Toogood John Roger Can with hygienic cover for dispensing orifice
JP3587477B2 (ja) * 1994-11-29 2004-11-10 日本テトラパック株式会社 飲料用容器
AUPN098995A0 (en) * 1995-02-09 1995-03-09 Kohorn International Pty. Ltd. A container
US5647497A (en) * 1996-02-21 1997-07-15 Labbe; Andre Protective removable cover for beverage container

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9916677A1 *

Also Published As

Publication number Publication date
AU9273998A (en) 1999-04-23
CA2305578A1 (fr) 1999-04-08
GB9720804D0 (en) 1997-12-03
AU743636B2 (en) 2002-01-31
ZA988950B (en) 1999-05-26
WO1999016677A1 (fr) 1999-04-08

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