WO2005039993A1 - Ensemble de fermeture pour boites metalliques et son procede de fabrication - Google Patents

Ensemble de fermeture pour boites metalliques et son procede de fabrication Download PDF

Info

Publication number
WO2005039993A1
WO2005039993A1 PCT/EP2004/010444 EP2004010444W WO2005039993A1 WO 2005039993 A1 WO2005039993 A1 WO 2005039993A1 EP 2004010444 W EP2004010444 W EP 2004010444W WO 2005039993 A1 WO2005039993 A1 WO 2005039993A1
Authority
WO
WIPO (PCT)
Prior art keywords
closing member
covering element
closure assembly
cans
peripheral wall
Prior art date
Application number
PCT/EP2004/010444
Other languages
English (en)
Inventor
Sandro Bosoni
Original Assignee
Professional Dietetics S.R.L.
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
Priority claimed from ITMI20032079 external-priority patent/ITMI20032079A1/it
Priority claimed from ITMI20041328 external-priority patent/ITMI20041328A1/it
Application filed by Professional Dietetics S.R.L. filed Critical Professional Dietetics S.R.L.
Publication of WO2005039993A1 publication Critical patent/WO2005039993A1/fr

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
    • 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
    • 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
    • B65D2517/0059—General cross-sectional shape of container end panel
    • B65D2517/0061—U-shaped
    • B65D2517/0062—U-shaped and provided with an additional U-shaped peripheral channel
    • 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

  • This invention concerns improvements to closures for metal cans, in particular for beverages or other food and non-food substances, provided with cov- ering means suitable for protection against dust and tampering, and for defining an additional printing surface that can be used for advertising and/or promotional purposes; the invention also concerns a method for performing a closure assembly for cans provided with a protective covering element that can be applied in advance to a closing member, in a fully shaped form or during the filling method of the cans.
  • WO-A-95/28328 illustrates the use of covering and protective means for cans comprising a film of heat-shrinkable plastic material, which is brought into contact with the upper end of a can by suitable positioning means, and subsequently heated to conform and adhere to the can during a subsequent cooling.
  • the covering element is shaped to conform to a central panel and to a peripheral wall of a closing member, the peripheral wall being necessary for seam folding or crimping the closing member to the edges of the can; in this case, the covering element extends to the upper edge of the can and is secured to the latter by a strip of adhesive material applied on the peripheral wall of the closing member, after the seaming step.
  • the application of the covering element must necessarily be carried out only on an already sealed can, after the closing member has already been seamed, and therefore after the usual method of filling and packaging the cans, in that, if it is applied in advance, it would be torn or removed by the seaming devices commonly provided for closing the can.
  • the main object of this invention is to provide a closing and covering assembly for cans, and its manufacturing method, whereby it is possible to form such assembly separately or along the packaging line itself, before the filling and the closure of the can, by means of a simple, low cost and reliable solution.
  • a further object of this invention is to provide a method for performing a closure assembly for cans, provided with a covering and protective element whereby it is possible to operate with either conventional or high-speed filling and packaging lines.
  • a still further object is to provide a closing and covering assembly, and its manufacturing method, whereby it is possible to operate along usual filling and packaging lines for filling and packaging the cans, without the need to carry out additional operations or to make use of costly additional apparatuses.
  • the foregoing can be achieved by means of a method for performing a closure assembly for cans, in which the assembly comprises a rigid closing member for a can, said closing member hav- ing tear opening means, characterised by the steps of: - providing a pre-shaped closing member having an outer surface; - providing a covering element in the form of a flat disk-like element in shapable material; - superimposing the covering element to the outer side of the closing member; and - conforming the covering member to said outer surface of the closing member, by press-fitting the same covering element against at least a portion of said outer surface to perform an assembly for successive closure of a can.
  • a closure assembly for cans comprising a closing member having tear opening means on an outer surface, characterised by comprising a covering element in the form of a flat disk in shapable material, the covering element being conformed to the outer surface of the closing member by press-fitting of the same covering element against at least a portion of said outer surface to perform an assembly for successive closure of a can.
  • a can provided with a closure assembly as previously described has been provided, according to which the can comprises a container having a bottom wall and a side wall ending with a peripheral edge for crimping a closing member, the closing member having tear opening means on an outer surface, characterised in that said closure assembly comprises a covering element in the form of a flat disk in shapable material, the covering element being conformed to the outer surface of the closing member by press-fitting of the same covering element against at least a portion of said outer surface, before crimping the closing member to the edge of the can.
  • Fig. 1 shows a sectional view of a can having a covering and protecting element according to a first embodiment of the invention
  • - Fig. 2 shows a cross-sectional view of a closing member and a covering element, which can be coupled together to form a closing and covering assembly for cans according to the first embodiment of the invention
  • - Fig. 3 shows a cross-sectional view of the closing member and the covering element for closing and covering cans of Fig. 2, having the covering ele- ment conformed and made to adhere to the closing member
  • - Fig. 1 shows a sectional view of a can having a covering and protecting element according to a first embodiment of the invention
  • - Fig. 2 shows a cross-sectional view of a closing member and a covering element, which can be coupled together to form a closing and covering assembly for cans according to the first embodiment of the invention
  • - Fig. 3 shows a cross-sectional view of the closing member and the covering element for closing and covering cans of Fig.
  • FIG. 4 shows an enlarged detail of Fig. 3; - Fig. 5 shows the enlarged detail of Fig. 4, in which the closure assembly is seamed to the peripheral edge of a can; - Fig. 6 shows a detail of a closure assembly according to a second em- bodiment of the invention; - Fig. 7 shows the closure assembly of Fig. 6, crimped to a can; - Fig. 8 shows, by means of a block diagram, the steps of the method for performing a closure assembly for closing cans according to the invention.
  • DETAILED DESCRIPTION OF THE INVENTION The general features of this invention will be illustrated hereunder by some embodiments.
  • Figure 1 shows a can 10 according to a first embodiment of the invention, for example a can for beverages, as in this case, or any type of can for contain- ing foodstuffs or other substances;
  • the can 10 comprises a container 11 having a bottom wall 12 and a side wall 13 ending with a peripheral edge 14, on which a closing and protecting assembly 15 is positioned and seam folded or crimped, as explained further on.
  • the figures from 2 to 5 show the closure assembly 15 for closing cans, according to the first embodiment of the invention;
  • the assembly 15 comprises a conventional rigid preshaped closing member 16, provided with tear opening means 17 on an outer side or surface of the closing member 16.
  • the closing member 16 in turn comprises a central panel 18 and a peripheral wall 20, which are joined by an annular concave strengthening rib 19 which extends over the side opposite that of the peripheral wall 20, with respect to the central panel 18.
  • the annular rib 19 is in the form of a bead comprising a first inner wall 19' which extends from the peripheral edge of the central panel 18, on a side opposite that of the tear opening means 17, the inner wall 19' in turn con- tinuing into a second concave bottom wall 19" which is joined to the counter wall 20 by a third outer annular wall 19"' directed towards the outside of the closing member 16.
  • Reference L in the figures from 2 to 5, has been used to indicate an ideal separation line between the annular wall 19"' of the strengthening rib 19 and the peripheral wall 20 of the closing member 16.
  • the peripheral wall 20 of the closing member 16 ends with a shaped flange 22 having a peripheral edge 22' designed to be crimped to the edge 14 of the can 10, for example, as shown in Fig. 5, by means of one or more seaming rollers 21', capable of deforming by pressure the peripheral edges 22' and 14 respectively of the closing member 16 and of the can 10, and a reaction plug 21" acting on the peripheral wall 20 to provide a counterthrust capable of opposing the thrust exerted by the rollers 21' to deform the aforesaid peripheral edges 22' and 14.
  • the closure assembly 15 also comprises a covering and protecting element 23, preferentially in the form of a disk in shapable material, which, as shown in figures 2 and 3, is superimposed and conformed to the outer surface of the closing member 16, by press-fitting the same covering element 23 against the outer surface of the central panel 18 and at least to part of the surface of the strengthening rib 19 of the closing member 16, before the closure assembly is crimped to the edge 14 of the can 10, along a conventional filling and packaging line.
  • the covering and protecting element 23 in particular extends towards the ideal separation line L between the strengthening rib 19 and the peripheral wall 20 of the closing member 16.
  • the covering and protecting element 23 extends as far as the ideal separation line L between the strengthening rib 19 and the peripheral wall 20 of the closing member 16, or close to the aforesaid separation line L.
  • a closing and covering assembly for cans, according to the invention can be produced separately by an appropriate method described further on, or along a packaging line, but in any case before the crimping step of the can, making use for the covering element 23 of wholly conventional and extremely low cost materials.
  • the covering element 23 is made to adhere to the central panel 18 as well as to the concave surface of the strengthening rib 19, in such a way that the same covering element 23 offers adequate protection of the part of the closing member 16 of the can which is more liable to accumulate dust and dirt, and as well as allows a more stable stacking of the cans; moreover, the covering element 23 helps to provide an additional surface on which advertising messages of various kinds can be printed.
  • closure assembly solves the problem of providing means for covering and protecting a can, in a simple way and with a considerable reduction in costs.
  • the closure assembly 15 with the invention, a fur- ther reduction in costs is achieved, in that it is possible to perform the covering element 23 using conventional low cost materials of limited thickness; this is due to the fact that the covering element 23 extends near to or in correspondence with the separation line L between the strengthening rib 19 and the peripheral wall 20; consequently it is not subject to any pressure or stress during the crimp- ing operation, thereby obviating the need to use special and more expensive materials, in order to withstand the same crimping operation without tearing.
  • a closure assembly 15 according to the invention can be performed, for example by a method, schematically illustrated in Fig.
  • Such a closure assembly 15 can be fastened to a can 10 by the further steps of: - superimposing the closure assembly 15 over the edge 14 of the aperture of the can container 11 , and - crimping the closure assembly 15 to the peripheral edge 14 of the can In this way it is possible to perform a can 10 provided with an assembly for closing and covering or protecting against dust and tampering as illustrated in Fig. 1. Moreover, a can 10 according to this invention has a high safety degree, due to the fact that in order to gain access to the opening means 17, or in any case to the outer surface of the closing member 16, it is necessary to tear or remove the covering disk 23, thereby clearly revealing that it has been tampered with.
  • the closure assembly 15 can be assembled along the filling and packaging line, or can be assembled separately and then supplied to the line.
  • the above method can for example be carried out by means of the operative steps of: - disposing a covering element 23 in an appropriate shaped seat in a movable support, not shown, in a first work station; - superimposing the covering element 23 to the outer surface of a closing member 16, in a second work station; - conforming and making the covering element 23 adhere to the central panel 18 and at least to part of the concave surface of the strengthening rib 19 of the closing member 16, for example by a shaped pressure element 24 shown in Fig.
  • the covering and protecting disk 23 is conformed and made to adhere to the closing member 16 preferentially by means of one of the following ways: - by pressure, for example by the action of a punch 24; - by pressure and secured by a suitable adhesive, for example distributed in dots; or - by pressure and secured by hot fitting, by a layer of suitable adhesive material or a food compatible lacquer on a side of the covering element 23 destined to come into contact with the closing member 16.
  • the choice from among these different ways of conforming and making the covering and protecting element 23 adhere to the closing member 16 is made in relation to the manufacturing requirements, in that, depending for example upon how the sealing assemblies 15 are moved along the filling line, it is necessary to ensure different adhesion degrees between the covering element 23 and the closing member 16, in order to prevent their premature separation.
  • the covering and protecting element 23 preferentially comprises means for removing it from the closing member 16, not shown, for example of the tear- off type, or by means of a weakened break line.
  • the covering element 23 can be in the form of a disk of aluminium-based material, or a bonded layer of different materials comprising for example a sheet of aluminium and a film in plastic material, or a layer of a food compatible lac- quer, or other adhesive compatible for use with foodstuffs, capable of adhering by heat or by simple pressure, to the closing member.
  • the covering and protecting element 23 extends over the closing member 16 until it overlaps the crimping flange 22, so that it can be crimped in combination with the same flange 22 to edge 14 of the can 10.
  • the peripheral flange 22 of the closing member 16 and the sheet of covering material 23 are folded simultaneously by crimping, for example by means of appropriate rollers not shown, until pinching the covering element 23 between the folded edge 22' of the peripheral flange 22 of the closing member 16 and the side wall 13 of the can container 11.
  • the covering element 23 is fitted also in the concave rib 19, as illustrated in phantom lines in Fig. 6, in order to increase the adhesion of the covering element 23 on the closing member 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

Cette invention concerne un ensemble de fermeture et de recouvrement (15) pour boîtes métalliques (10), lequel ensemble (15) comprend un élément de fermeture (16) comprenant un panneau central (18), une paroi périphérique (20) se terminant par un bord de sertissage, ainsi qu'une nervure de raidissement circulaire concave (19) qui relie le panneau central (18) à la paroi périphérique (20). Un élément de recouvrement et de protection (23) se présentant sous la forme d'un disque de matériau conformable est modelé de façon qu'il épouse la forme de la surface extérieure de l'élément de fermeture (16) sous l'action d'un ajustement par pression de l'élément de recouvrement (23) contre au moins une partie de la surface extérieure de l'élément de fermeture (16), ce qui permet de fabriquer un ensemble (15) servant à fermer une boîte (10).
PCT/EP2004/010444 2003-10-23 2004-09-17 Ensemble de fermeture pour boites metalliques et son procede de fabrication WO2005039993A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITMI20032079 ITMI20032079A1 (it) 2003-10-23 2003-10-23 Procedimento e assieme per la realizzazione di chiusure per lattine
ITMI2003A002079 2003-10-23
ITMI20041328 ITMI20041328A1 (it) 2004-07-01 2004-07-01 Procedimento e assieme per la realizzazione di chiusure per lattine
ITMI2004A001328 2004-07-01

Publications (1)

Publication Number Publication Date
WO2005039993A1 true WO2005039993A1 (fr) 2005-05-06

Family

ID=34525108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/010444 WO2005039993A1 (fr) 2003-10-23 2004-09-17 Ensemble de fermeture pour boites metalliques et son procede de fabrication

Country Status (1)

Country Link
WO (1) WO2005039993A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1638851A2 (fr) * 2003-06-09 2006-03-29 Charles Chang Canette de boisson presentant une pellicule laminee sur sa partie superieure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028328A1 (fr) * 1994-04-13 1995-10-26 Young Chul Jung Boite de boisson a couvercle superieur hygienique
US5647497A (en) * 1996-02-21 1997-07-15 Labbe; Andre Protective removable cover for beverage container
US6336309B1 (en) * 1996-07-26 2002-01-08 Bantam Engineers Limited Method and apparatus for providing hygenic protection on cans or groups of cans
EP1232956A2 (fr) * 2001-02-20 2002-08-21 Schmalbach-Lubeca AG Protection hygiénique pour le couvercle d'une boíte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028328A1 (fr) * 1994-04-13 1995-10-26 Young Chul Jung Boite de boisson a couvercle superieur hygienique
US5647497A (en) * 1996-02-21 1997-07-15 Labbe; Andre Protective removable cover for beverage container
US6336309B1 (en) * 1996-07-26 2002-01-08 Bantam Engineers Limited Method and apparatus for providing hygenic protection on cans or groups of cans
EP1232956A2 (fr) * 2001-02-20 2002-08-21 Schmalbach-Lubeca AG Protection hygiénique pour le couvercle d'une boíte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1638851A2 (fr) * 2003-06-09 2006-03-29 Charles Chang Canette de boisson presentant une pellicule laminee sur sa partie superieure
EP1638851A4 (fr) * 2003-06-09 2008-06-11 Charles Chang Canette de boisson presentant une pellicule laminee sur sa partie superieure

Similar Documents

Publication Publication Date Title
US4673601A (en) Cold- or heat-sealable composite film for reclosable packages
US10040608B2 (en) Metal bottle seal
US4697719A (en) Foil-lid combination for containers
US5328045A (en) Lid device for wide-mouthed container and method for making the same
CA2138307C (fr) Dispositif d'ouverture
US5197618A (en) Tamper-evident fusion bonded pull-tab induction foil lining system for container closures
US6296137B1 (en) Beverage can device
WO1995019918A1 (fr) Elements de fermeture thermosoudables pour recipients
GB2237259A (en) Container closure
US8020720B2 (en) Stopper member, a fluid dispenser comprising such a member, and a method of manufacturing such dispenser
US20060054584A1 (en) Tamper evident container seal with integral pull opener
US4817815A (en) Container comprising cylindrical jacket and lid with closable vent and process for its production
CN110278707B (zh) 感应加热容器封合件及适用其的具有防拆功能的容器
US3734044A (en) Sealed container assembly and method of making same
CN112424075B (zh) 金属制的罐盖
WO2005039993A1 (fr) Ensemble de fermeture pour boites metalliques et son procede de fabrication
US3501045A (en) Sealed container assembly
US4411370A (en) Opening arrangement for cans
EP1800770A1 (fr) Corps de boîte avec une matière d'étanchéité placée sur une collerette ou sur un échelon et procédé de formage d'un tel corps de boîte
EP2794418B1 (fr) Capuchon de fermeture avec un joint multi-couches pour réceptacles
GB2096980A (en) Sealing of containers
JPS6226964B2 (fr)
JPH0635965Y2 (ja) アルミ箔シール缶
JPS6025390Y2 (ja) テ−プシ−ル蓋
JPS6144989Y2 (fr)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
122 Ep: pct application non-entry in european phase