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WO2005026004A1 - Resealable opening system for cans - Google Patents

Resealable opening system for cans Download PDF

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Publication number
WO2005026004A1
WO2005026004A1 PCT/BE2004/000016 BE2004000016W WO2005026004A1 WO 2005026004 A1 WO2005026004 A1 WO 2005026004A1 BE 2004000016 W BE2004000016 W BE 2004000016W WO 2005026004 A1 WO2005026004 A1 WO 2005026004A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
opening
bobbin
closed position
tongue
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.)
Ceased
Application number
PCT/BE2004/000016
Other languages
French (fr)
Inventor
Nicolas De Bruyne
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2005026004A1 publication Critical patent/WO2005026004A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D17/00Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28Rigid 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
    • B65D17/401Rigid 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
    • B65D17/4012Rigid 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
    • B65D17/4014Rigid 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 and provided with attached means for reclosing or resealing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2517/00Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001Details
    • B65D2517/0031Reclosable openings
    • B65D2517/0032Reclosable openings the tab reclosing the opening

Definitions

  • the present invention relates to a system for opening 5 cans.
  • cans intended to receive liquids such as food drinks, and which has the particularity to be resealable.
  • STATE OF THE ART Two types of opening systems are known for O containers intended to receive liquids such as, for example, food drinks.
  • the first type of opening systems is the screw cap as found today on plastic bottles and which allows these bottles to be opened and closed at will by simply unscrewing and screwing them onto the neck threaded from these bottles.
  • the second type of opening systems is constituted by the tabs as currently found on the market on cans and which are welded to a cover.
  • the present invention aims to provide an opening system intended for receptacles for liquids or solids such as beverage cans which is resealable and therefore reusable (as opposed to single-use opening systems) .
  • ⁇ rOOOTI the present invention aims to provide an opening system for cans which is practical for the user, that is to say that it is simple and quick to use. 1 * 00081
  • the present invention also aims to provide a system opening for cans which, for the manufacturer, is simple to carry out and does not involve any excessive manufacturing cost compared to the systems currently used.
  • the present invention aims to provide an opening system 5 for cans which does not cause any problem of storage of these cans, either in the factory or on the shelves of shops.
  • Summary of the invention r00101
  • the present invention relates to a can opening system comprising at least one cover provided with a tongue, characterized in that said system can be closed.
  • said cover is flexible enough to be able to be deformed mechanically in a reversible manner by actuation of the tongue and / or directly under the effect of forces
  • the cover is in the form of a disc, essentially circular or polygonal, comprising an external face exposed to the environment and an internal face not exposed to the environment when the cover is in place on a bobbin, the tongue comprising a free end protruding towards the outside of the disc.
  • the system according to the invention is capable of adopting an open position and a closed position, said open position corresponding to a position of the system in which the cover is convex and the tab has its free end inclined towards the top, and said closed position corresponding to a position of the system in which the cover is concave and the tab has its free end inclined upwards. Indeed the tongue once deformed upwards, will maintain this position by mechanical force.
  • the cover is further provided on its edge, preferably on the side of its internal face, with a crown provided with a layer of flexible material on the outside.
  • a crown provided with a layer of flexible material on the outside. This will help make the closure opaque.
  • the crown will have an external pressure depending on the actuation of the end of the tongue and / or under the effect of external mechanical forces, said pressure is minimum when the cover is in the open position, and maximum when the cover is in position. closed.
  • the present invention also relates to a can comprising an opening system according to one of the preceding claims.
  • Ho preferably defines for this can a closed position and an open position to which correspond the closed position and the open position respectively of the opening system, the can having at its top in both positions an access opening bounded by an edge, said opening being exposed or not to the environment depending on whether the
  • ⁇ 5 opening system is in the open or closed position respectively.
  • the edge of the lid rests on the edge of the access opening of the can in a blocking position, and the crown of the lid enters the opening of the can and gives external pressure so as to block any movement of the lid relative to the can.
  • the rim of the opening is hermetically blocked in the so-called flexible and / or elastic material which is positioned outside the crown so that the closure is opaque.
  • the can opening system in the closed position is such that the crown is secured to the edge of the can opening by welding or pre-cut o if it is d '' one piece at the start. But can also be in the closed position as described in the paragraph [0017] before any use of the bobbin.
  • Another object of the invention relates to the use of the opening system and / or the can according to one of the preceding claims
  • FIG. 1a ', 1b and 1b', 1c and 1c 'and 1d illustrate different% o process steps for opening or closing a can with the opening system according to the present invention.
  • Figure (2) shows a preferred embodiment of the opening system according to the present invention, as it comes from the factory. S Detailed description of the invention.
  • An example of an opening system according to the present invention is shown in the figures (1a, 1a ', 1b, 1b', 1c, 1c 'and 1d).
  • This system is here in the form of a cover (1) essentially circular, delimited by an edge (10), and which is extended by a tongue (2).
  • cover (l), including the tongue (2) are preferably made of metal, but other materials can also be used. These materials must be compatible with their functions, in particular with their application in the food industry and their mechanical properties (see below).
  • cover (1) an internal face (3) and a face are defined.
  • the tongue (2) comprises a base (6) which corresponds to the zone of the tongue (2) which is integral with the cover (1), and one end (7) protrudes beyond the disc forming the cover (1), this end (7) preferably being free.
  • the tongue (2) is also preferably folded back on itself on its exterior (a flange 14) so as to have more rigidity.
  • the cover (1) according to the invention is further provided with a crown surrounded on its outside with a so-called elastic material (12) ( Figure 2).
  • This ring (8) is preferably located on the edge (10) of the cover (1), and more precisely on the side of its external face (3).
  • the cover (1) is designed so that when it leaves the factory, so before its first use by a consumer, it is in place on the can (5) with the elastic material stuck in the narrowing of the crown (8) being also preferably welded to the edge (16) of the opening (9) of the can (5) on which it rests, as shown by the references (11) symolizing the welding points in figure (1a). But it can also leave the factory in a so-called closed position as illustrated in figure (1a 1 ).
  • the composition of the cover 1 and the physical forces exerted therein are such that the cover (1) in place on the can $ (5) is slightly curved outward (slightly convex cover) and the tongue (2) is inclined downwards, in the so-called “low” position, which is also slightly rounded. Note in this "low” position the end (7) of the tongue is curved outwards (slightly convex tongue). But it can also leave the factory in a so-called closed position as illustrated in the figure (1 a '). When the user wishes to open the bobbin (5) / cover (1) assembly for the first time, he must lift the tongue (2) to a blocking position known as the "high” position illustrated in the figure. (1b & 1b ').
  • This movement of the end (7) of the tongue (2) is shown diagrammatically by (1a & 1a 'arrow A).
  • This movement (A) of the tongue (2) has the effect of making movement (fig. 1 & 1b 'arrow B &B') possible.
  • This last movement (arrow B) will definitively separate the cover (1) from the bobbin (5) (welding points (11) broken) which can thus slide into the opening (9) of the bobbin (5), as shown in figure (1c). Then simply lift o the cover (1) to release it from the opening (9) of the can (5).
  • the movement (B 'fig.1b') it will remove the pressure between the edge of the opening (9) and the material (12) called elastic and / or plastic and / or other.
  • the user replaces the cover (1) on the opening (9) of the can (5) as illustrated in 5 the figure (1 c) by sliding the crown (8 ) in the opening (9) of the bobbin (5) up to the blocking position mentioned above in which the edge (10) of the cover (1) abuts against the edge (16) of the opening (9 ) from the bobbin (5).
  • the user must then apply a light pressure on the dussus of the cover (arrow B) so as to reverse the curvature of the cover (1) which from convex becomes concave, and to give pressure towards the outside on the crown and this same made the so-called elastic material (12) will tighten between the crown (8) and the edge of the opening (9).
  • the closure of the can (5) is thus secure and perfectly waterproof. r00301 Then, and each time the user wants to open the bobbin (5) again, he must press the end (7) of the tongue (2) (arrow C) so as to loosen the crown (8 ) and similarly made to depressurize said elastic material. This will also ensure that the cover will rebound convexly. The user only has to lift the cover to release it from the bobbin (5). Similarly, each time the user wants to close the can (5) again, he must replace the cover (1) on the opening (9) of the can (5) as illustrated in the figure (1c & 1c ' ) by sliding the crown (8) with the said material (12) into the opening (9) of the bobbin (5) until the blocking position mentioned above. Then the user must apply a light pressure on the top of the cover e so as to reverse the curvature of the cover (1) which becomes concave, and of this same fact will give pressure on the crown (8) and the material which
  • the user can also open and close the bobbin using the lid as many times as he wishes and it is no longer necessary to empty the entire contents of the bobbin at once. Thanks to the opening system according to the present invention, the taste qualities of the contents of the can are not altered Vietnamese, given the speed with which the can can be opened and closed. This is particularly advantageous in the case of carbonated drinks since, thanks to this system, the gas is preserved.
  • the invention also applies to containers which may contain other types of content, including solids. Likewise, this invention applies in an advantageous manner to the food industry, but may also relate to other fields of industry.
  • the tongue (2) of the opening system according to the invention may include a notch by which it is possible to hang the cover (1) on the upper edge ⁇ (14) of the can (5), once the cover (1) removed, which further facilitates the use by the user of the opening system according to the invention.
  • This notch will preferably be located on the edge of the can.
  • the cover with its crown (8) described so far has an essentially circular shape. In an alternative form of execution, it may
  • 3o also have a polygonal shape.
  • provision can also be made to use the opening system and in particular the cover as an information medium.
  • One can also for example provide for placing advertising media on the inner face of the cover.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

The invention relates to a can-opening system comprising at least one cover (1) which is equipped with a tab (2). The invention is characterised in that the system can be resealed. The invention also relates to a can comprising said system and to the use thereof in the agri-food industry.

Description

SYSTEME D'OUVERTURE REFERMABLE POUR CANETTES Obiet de l'invention [0001] La présente invention se rapporte à un système d'ouverture de 5 canettes.de préférence des canettes destinées à recevoir des liquides tel que des boissons alimentaires, et qui présente la particularité d'être refermable. Etat de la technique [0002]On connaît deux types de systèmes d'ouverture pour des récipients O destinés à recevoir des liquides tel que par exemple des boissons alimentaires. r00031 Le premier type de systèmes d'ouverture est le bouchon à vis tel qu'on le trouve aujourd'hui sur les bouteilles en plastique et qui permet d'ouvrir et de fermer à volonté ces bouteilles par simple dévissage et vissage sur le S goulot fileté de ces bouteilles. f 00041 Le second type de systèmes d'ouverture est constitué par les languettes telles qu'on les trouve actuellement dans le commerce sur les canettes et qui sont soudées sur un couvercle. Lorsque l'on veut ouvrir une canette, il suffit de tirer la languette qui libère une ouverture dans le couvercle o qui reste en place sur la canette. Malheureusement, ce système d'ouverture présente l'inconvénient par rapport aux systèmes de bouchons à vis d'être à usage unique,c'est-à-dire qu'une fois que la languette a été manipulée.on ne peut plus la repositionner de façon à fermer la canette. Ceci s'explique par le fait que lors de l'ouverture la languette et le couvercle de la canette sont k$ déformées de façon irréversible. S'ajoute à cet incovénient un incovénient supplémentaire qui est celui de ne pas garantire une sécurité optimale pour le consommateur car une partie du couvercle de la canette qui a pu être souillé lors du stockage dans l'usine et/ou en magasin rentre à l'intérieur de la canette. Pour limiter ce risque, le consommateur doit procéder à un nettoyage CLOSABLE OPENING SYSTEM FOR CANS Obiet of the invention [0001] The present invention relates to a system for opening 5 cans. Preferably cans intended to receive liquids such as food drinks, and which has the particularity to be resealable. STATE OF THE ART Two types of opening systems are known for O containers intended to receive liquids such as, for example, food drinks. r00031 The first type of opening systems is the screw cap as found today on plastic bottles and which allows these bottles to be opened and closed at will by simply unscrewing and screwing them onto the neck threaded from these bottles. f 00041 The second type of opening systems is constituted by the tabs as currently found on the market on cans and which are welded to a cover. When you want to open a can, simply pull the tab which releases an opening in the lid o which remains in place on the can. Unfortunately, this opening system has the disadvantage compared to screw cap systems of being disposable, that is to say that once the tab has been manipulated, it can no longer be repositioned. so as to close the bobbin. This is explained by the fact that when opening the tongue and the cover of the bobbin are k $ irreversibly deformed. Added to this disadvantage is an additional disadvantage which is that of not guaranteeing optimal safety for the consumer because part of the can lid which may have been soiled during storage in the factory and / or in store returns to the inside the can. To limit this risk, the consumer must carry out a cleaning

3o préalable du dessus du couvercle avant de l'ouvrir. IO0051 II serait donc particulièrement intéressant d'un point de vue industriel de pouvoir offrir au consommateur un système d'ouverture pour canette qui puisse être ouvert et fermé à volonté.3o prior to the top of the cover before opening it. IO0051 It would therefore be particularly interesting from an industrial point of view to be able to offer the consumer a can opening system which can be opened and closed at will.

35 Buts de l'invention IO0061 La présente invention vise à fournir un système d'ouverture destiné à des récipients pour liquides ou solides tels que des canettes pour boissons qui soit refermable et donc réutilisable (par opposition aux systèmes d'ouverture à usage unique). ^ rOOOTI En particulier, la présente invention vise à fournir un système d'ouverture pour canettes qui soit pratique pour l'utisateur, c'est -à-dire qu'il soit simple et rapide à utiliser. 1*00081 Par ailleurs, la présente invention vise aussi à fournir un système d'ouverture pour canettes qui, pour l'industriel, soit simple à réaliser et n'entraîne pas de surcoût inconsidéré de fabrication par rapport aux systèmes actuellement utilisés. IO0091 En outre, la présente invention vise à fournir un système d'ouverture 5 pour canettes qui n'engendre pas de problème de stockage de ces canettes, que ce soit en usine ou dans les rayons des commerces. Résumé de l'invention r00101 La présente invention concerne un système d'ouverture pour canette comprenant au moins un couvercle muni d'une languette, caractérisé en ce que ledit système peut être refermé. r00111 De préférence, dans ce système ledit couvercle est suffisamment flexible pour pouvoir être déformé mécaniquement de manière réversible par actionnement de la languette et/ou directement sous l'effet de forcesObjects of the invention IO0061 The present invention aims to provide an opening system intended for receptacles for liquids or solids such as beverage cans which is resealable and therefore reusable (as opposed to single-use opening systems) . ^ rOOOTI In particular, the present invention aims to provide an opening system for cans which is practical for the user, that is to say that it is simple and quick to use. 1 * 00081 Furthermore, the present invention also aims to provide a system opening for cans which, for the manufacturer, is simple to carry out and does not involve any excessive manufacturing cost compared to the systems currently used. IO0091 In addition, the present invention aims to provide an opening system 5 for cans which does not cause any problem of storage of these cans, either in the factory or on the shelves of shops. Summary of the invention r00101 The present invention relates to a can opening system comprising at least one cover provided with a tongue, characterized in that said system can be closed. r00111 Preferably, in this system said cover is flexible enough to be able to be deformed mechanically in a reversible manner by actuation of the tongue and / or directly under the effect of forces

^5 mécaniques extérieures. [0012] De préférence, le couvercle se présente sous la forme d'un disque, essentiellement circulaire ou polygonal, comprenant une face externe exposée à l'environnement et une face interne non exposée à l'environnement lorsque le couvercle est en place sur une canette, la 20 languette comprenant une extrémité libre faisant protrusion vers l'extérieure du disque. [0013] De préférence, le système selon l'invention est capable d'adopter une position ouverte et une position fermée, ladite position ouverte correspondant à une position du système dans laquelle le couvercle est convexe et la ^ languette a son extrémité libre inclinée vers le haut, et ladite position fermée correspondant à une position du système dans laquelle le couvercle est concave et la languette a son extrémité libre inclinée vers le haut. En effet la languette une fois déformée vers le haut, maintiendra cette position par force mécanique. 0 [0014] De préférence, le couvercle est en outre muni sur son bord, de préférence du côté de sa face interne, d'une couronne muni d'une couche de matière flexible à l'extérieure. Celle-ci aidera à rendre la fermeture opaque. La couronne aura une pression extérieure selon l'actionnement de l'extrémité de la languette et/ou sous l'effet de forces mécaniques extérieures, laditte 35 pression est minimal lorsque le couvercle est en position ouverte, et maximal lorsque le couvercle est en position fermée. [0015] La présente invention se rapporte également à une canette comprenant un système d'ouverture selon l'une des revendications précédentes.^ 5 exterior mechanics. Preferably, the cover is in the form of a disc, essentially circular or polygonal, comprising an external face exposed to the environment and an internal face not exposed to the environment when the cover is in place on a bobbin, the tongue comprising a free end protruding towards the outside of the disc. Preferably, the system according to the invention is capable of adopting an open position and a closed position, said open position corresponding to a position of the system in which the cover is convex and the tab has its free end inclined towards the top, and said closed position corresponding to a position of the system in which the cover is concave and the tab has its free end inclined upwards. Indeed the tongue once deformed upwards, will maintain this position by mechanical force. 0 Preferably, the cover is further provided on its edge, preferably on the side of its internal face, with a crown provided with a layer of flexible material on the outside. This will help make the closure opaque. The crown will have an external pressure depending on the actuation of the end of the tongue and / or under the effect of external mechanical forces, said pressure is minimum when the cover is in the open position, and maximum when the cover is in position. closed. The present invention also relates to a can comprising an opening system according to one of the preceding claims.

Ho [0016] De préférence, on définit pour cette canette une position fermée et une position ouverte auxquelles correspondent la position fermée et la position ouverte respectivement du système d'ouverture, la canette présentant à son sommet dans les deux positions une ouverture d'accès délimitée par un bord, ladite ouverture étant exposée ou non à l'environnement selon que leHo preferably defines for this can a closed position and an open position to which correspond the closed position and the open position respectively of the opening system, the can having at its top in both positions an access opening bounded by an edge, said opening being exposed or not to the environment depending on whether the

^5 système d'ouverture est en position ouverte ou fermée respectivement. [0017] De préférence, pour cette canette en position fermée le bord du couvercle repose sur le bord de l'ouverture d'accès de la canette dans une position de blocage, et la couronne du couvercle pénètre dans l'ouverture de la canette et donne une pression extérieure de façon à bloquer tout mouvement du couvercle par rapport à la canette. Le rebord de l'ouverture se bloque de manière hermétique dans la matière dite flexible et/ou élastique qui S est positioner à l'extérieure de la couronne de façon que la fermeture soit opaque. [0018] De préférence, avant toute utilisation de la canette, le système d'ouverture de la canette en position fermée est tel que la couronne est solidarisée sur le bord de l'ouverture de la canette par soudure ou précoupée o si elle est d'une seule pièce au départ. Mais peut aussi être en position fermée comme il est décrit dans le paragraffe [0017] avant toute utilisation de la canette. [0019] Un autre objet de l'invetion concerne l'utilisation du système d'ouverture et/ou de la canette selon l'une des revendications précédentes^ 5 opening system is in the open or closed position respectively. Preferably, for this can in the closed position the edge of the lid rests on the edge of the access opening of the can in a blocking position, and the crown of the lid enters the opening of the can and gives external pressure so as to block any movement of the lid relative to the can. The rim of the opening is hermetically blocked in the so-called flexible and / or elastic material which is positioned outside the crown so that the closure is opaque. Preferably, before any use of the can, the can opening system in the closed position is such that the crown is secured to the edge of the can opening by welding or pre-cut o if it is d '' one piece at the start. But can also be in the closed position as described in the paragraph [0017] before any use of the bobbin. Another object of the invention relates to the use of the opening system and / or the can according to one of the preceding claims

,x/<T dans le domaine agro-alimentaire, de préférence dans le domaine des boissons. Brève descriptions des figures. [0020] Les figures (1a et 1a', 1b et 1b', 1c et 1c' et 1d) illustrent différentes %o étapes du procédé pour ouvrir ou fermer une canette avec le système d'ouverture selon la présente invention. [0021] La figure (2) représente une forme préférée d'exécution du système d'ouverture selon la présente invention, tel qu'il se présente en sortie d'usine. S Description détailée de l'invention. [0022] Un exemple de système d'ouverture selon la présente invention est repésenté sur les figures (1a, 1a', 1b, 1b', 1c, 1c' et 1d). Ce système se présente ici sous la forme d'un couvercle (1 ) essentiellement circulaire, délimité par un bord (10), et qui se prolonge par une languette (2) . Ce, x / <T in the food industry, preferably in the beverage industry. Brief descriptions of the figures. The figures (1a and 1a ', 1b and 1b', 1c and 1c 'and 1d) illustrate different% o process steps for opening or closing a can with the opening system according to the present invention. Figure (2) shows a preferred embodiment of the opening system according to the present invention, as it comes from the factory. S Detailed description of the invention. An example of an opening system according to the present invention is shown in the figures (1a, 1a ', 1b, 1b', 1c, 1c 'and 1d). This system is here in the form of a cover (1) essentially circular, delimited by an edge (10), and which is extended by a tongue (2). This

3© couvercle(l), y compris la languette (2), sont de préférence en métal, mais d'autres matériaux peuvent également être utilisés. Ces matériaux doivent être compatibles avec leurs fonctions, notamment avec leur application dans l'agro-alimentaire et leurs propriétés mécaniques (voir ci-dessous). [0023] On définit pour le couvercle (1) une face interne (3) et une face3 © cover (l), including the tongue (2), are preferably made of metal, but other materials can also be used. These materials must be compatible with their functions, in particular with their application in the food industry and their mechanical properties (see below). For the cover (1), an internal face (3) and a face are defined.

3" externe (4), la face interne (3) correspondant à la face du couvercle (1 ) qui, une fois que le système d'ouverture est en place sur une canette (5) (voir figure 1a& 1a' ), est orientée vers l'intérieur de cette canette (5), à l'abri de l'environnement extérieur, tandis que la face externe (4) est celle qui dans la même situation est exposée à l'environnement. ι<lo [0024] La languette (2) comprend quant à elle une base (6) qui correspond à la zone de la languette (2) qui fait corps avec le couvercle (1), et une extrémité (7) fait protrusion au-delà du disque formant le couvercle (1), cette extrémité (7) étant de préférence libre. La languette (2) est aussi de péférence repliée sur elle-même à son extérieure ( un rebord 14 ) de façon à tβ avoir plus de rigiditée. Elle est de préférence bombé et a des plies (13) qui ont la fonction de rendre la laguette plus rigide et aussi à ouvrir la canette quand elle est en position dite fermé. [0025] Le couvercle (1) selon l'invention est en outre muni d'une couronne entourée à son extérieure d'une matière dite élastique (12) ( figure 2). Cette couronne (8) est située de préférence sur le bord (10) du couvercle (1), et plus précisément du côté de sa face externe (3). S [0026] De préférence, le couvercle (1 ) est conçu de façon telle qu'à la sortie de l'usine, donc avant sa première utilisation par un consommateur, il est en place sur la canette (5) avec la matière élastique coincée dans le rétrécissement de la couronne (8) étant par ailleurs de préférence soudée sur le bord (16) de l'ouverture (9) de la canette (5) sur lequel elle repose, commeO le montrent les références (11 ) symolisant les points de soudure sur la figure (1a).Mais elle peut aussi sortir de l'usine de façon dite position fermée comme ilustre la figure (1a1). [0027] En outre, en sortie d'usine, la composition du couvercle 1 et les forces physiques qui s'y exercent sont telles que le couvercle (1) en place sur la $ canette (5) est légèrement bombé vers l'extérieur (couvercle légèrement convexe) et la languette (2) est inclinée vers le bas, en position dite "basse",elle aussi légèrement bombé. On notera dans cette position "basse" l'extrémité (7) de la languette est bombé vers l'extérieur (languette légèrement convexe). Mais elle peut aussi sortir de l'usine de façon dite position fermée comme ilustre la figure (1 a'). [0028] Lorsque l'utilisateur souhaite ouvrir pour la première fois l'ensemble canette (5)/couvercle (1 ) , il doit lever la languette (2) jusqu'à une position de blocage dite position "haute" illustrée à la figure (1b & 1b'). Ce mouvement de l'extrémité (7) de la languette (2) est schématisé par (1a &1a' flèche A). Ce5 mouvement (A) de la languette (2) a pour effet de rendre le mouvement ( fig. 1 &1b' flèche B &B') possible. Ce dernier mouvement ( flèche B) va désolidariser définitivement le couvercle (1) de la canette (5) (points de soudure (11) rompus) qui peut ainsi glisser dans l'ouverture (9) de la canette (5), comme montré à la figure (1c). Il suffit alors tout simplement de soulever o le couvercle (1 ) pour le dégager de l'ouverture (9) de la canette (5).A ce qu'il en est du mouvement ( B' fig.1b'), il va enlever la pression entre le bord de l'ouverture (9) et la matière (12) dite élastique et/ou plastique et/ou autre. r00291 Ensuite, pour refermer pour la première fois la canette, l'utilisateur replace le couvercle (1) sur l'ouverture (9) de la canette (5) comme illustré à5 la figure (1 c) en faisant glisser la couronne (8) dans l'ouverture (9) de la canette (5) jusqu'à la position de blocage mentionnée ci-dessus dans laquelle le bord (10) du couvercle (1) bute contre le bord (16) de l'ouverture (9) de la canette (5). L'utilisateur doit ensuite appliquer une légère pression sur le dussus du couvercle (flèche B) de façon à inverser la courbure du couvercleo (1 ) qui de convexe devient concave, et de donner de la pression vers l'extérieure sur la couronne et de ce même faite la matière dite élastique (12) va se serrer entre la couronne (8) et le bord de l'ouverture (9) . La fermeture de la canette (5) est ainsi sécurisée et parfaitement étanche. r00301 Ensuite, et ce à chaque fois que l'utilisateur veut ouvrir à nouveau la canette (5), il doit appuyer sur l'extrémité (7) de la languette (2) (flèche C ) de façon à desserrer la couronne (8) et de ce même faite à dépressuriser laditte matière élastique .Ceci va aussi faire en sorte que le couvercle va se rebomber de façon convexe. L'utilisateur n'a plus qu'à soulever le couvercle pour le dégager de la canette (5). De même à chaque fois que l'utilisateur veut fermer à nouveau la canette (5), il doit replacer le couvercle (1) sur l'ouverture (9) de la canette (5) comme illustré à la figure (1c & 1c') en faisant ζ glisser la couronne (8) avec laditte matière (12) dans l'ouverture (9) de la canette (5) jusqu'à la position de blocage mentionnée ci-dessus. Puis l'utilisateur doit appliquer une légère pression sur le dessus du couvercle e façon à inverser la courbure du couvercle (1) qui devient concave, et de ce même faite va donner de la pression sur la couronne (8) et la matière qui3 " external (4), the internal face (3) corresponding to the face of the cover (1) which, once the opening system is in place on a can (5) (see FIG. 1a & 1a '), is oriented towards the inside of this can (5), sheltered from the external environment, while the external face (4) is that which in the same situation is exposed to the environment. ι <lo [0024] The tongue (2) comprises a base (6) which corresponds to the zone of the tongue (2) which is integral with the cover (1), and one end (7) protrudes beyond the disc forming the cover (1), this end (7) preferably being free. The tongue (2) is also preferably folded back on itself on its exterior (a flange 14) so as to have more rigidity. It is preferably curved and has folds (13) which have the function of making the tongue more rigid and also of opening the bobbin when it is in the so-called closed position. The cover (1) according to the invention is further provided with a crown surrounded on its outside with a so-called elastic material (12) (Figure 2). This ring (8) is preferably located on the edge (10) of the cover (1), and more precisely on the side of its external face (3). S Preferably, the cover (1) is designed so that when it leaves the factory, so before its first use by a consumer, it is in place on the can (5) with the elastic material stuck in the narrowing of the crown (8) being also preferably welded to the edge (16) of the opening (9) of the can (5) on which it rests, as shown by the references (11) symolizing the welding points in figure (1a). But it can also leave the factory in a so-called closed position as illustrated in figure (1a 1 ). In addition, leaving the factory, the composition of the cover 1 and the physical forces exerted therein are such that the cover (1) in place on the can $ (5) is slightly curved outward (slightly convex cover) and the tongue (2) is inclined downwards, in the so-called "low" position, which is also slightly rounded. Note in this "low" position the end (7) of the tongue is curved outwards (slightly convex tongue). But it can also leave the factory in a so-called closed position as illustrated in the figure (1 a '). When the user wishes to open the bobbin (5) / cover (1) assembly for the first time, he must lift the tongue (2) to a blocking position known as the "high" position illustrated in the figure. (1b & 1b '). This movement of the end (7) of the tongue (2) is shown diagrammatically by (1a & 1a 'arrow A). This movement (A) of the tongue (2) has the effect of making movement (fig. 1 & 1b 'arrow B &B') possible. This last movement (arrow B) will definitively separate the cover (1) from the bobbin (5) (welding points (11) broken) which can thus slide into the opening (9) of the bobbin (5), as shown in figure (1c). Then simply lift o the cover (1) to release it from the opening (9) of the can (5). As for the movement (B 'fig.1b'), it will remove the pressure between the edge of the opening (9) and the material (12) called elastic and / or plastic and / or other. r00291 Then, to close for the first time the can, the user replaces the cover (1) on the opening (9) of the can (5) as illustrated in 5 the figure (1 c) by sliding the crown (8 ) in the opening (9) of the bobbin (5) up to the blocking position mentioned above in which the edge (10) of the cover (1) abuts against the edge (16) of the opening (9 ) from the bobbin (5). The user must then apply a light pressure on the dussus of the cover (arrow B) so as to reverse the curvature of the cover (1) which from convex becomes concave, and to give pressure towards the outside on the crown and this same made the so-called elastic material (12) will tighten between the crown (8) and the edge of the opening (9). The closure of the can (5) is thus secure and perfectly waterproof. r00301 Then, and each time the user wants to open the bobbin (5) again, he must press the end (7) of the tongue (2) (arrow C) so as to loosen the crown (8 ) and similarly made to depressurize said elastic material. This will also ensure that the cover will rebound convexly. The user only has to lift the cover to release it from the bobbin (5). Similarly, each time the user wants to close the can (5) again, he must replace the cover (1) on the opening (9) of the can (5) as illustrated in the figure (1c & 1c ' ) by sliding the crown (8) with the said material (12) into the opening (9) of the bobbin (5) until the blocking position mentioned above. Then the user must apply a light pressure on the top of the cover e so as to reverse the curvature of the cover (1) which becomes concave, and of this same fact will give pressure on the crown (8) and the material which

AΌ l'enveloppe (12). r00311 L'utilisateur peut aussi ouvrir et fermer la canette à l'aide du couvercle autant de fois qu'il le désire et il n'est plus nécessaire alors de vider en une seule fois tout le contenu de la canette. Grâce au système d'ouverture selon la présente invention, les qualités gustatives du contenu de la canette ne sont ξ pas altérées, étant donné la vitesse avec laquelle la canette peut être ouverte et fermée. Ceci est partuculièrement avantageux dans le cas de boisson gazéifiées puisque grâce à ce système , le gaz est conservé. Mais l'invention s'applique également à des récipients pouvant contenir d'autre types de contenus, y compris des solides. De même, cette invention s'applique de o manière avantageuse au domaine de l'agro-alimentaire, mais peut également concerner d'autre domaine de l'industrie. r00321 On notera également que de manière avantageuse, la languette (2) du système d'ouverture selon l'invention peut comprendre une encoche grâce à laquelle il est possible d'accrocher le couvercle (1) sur le rebord supérieur ζ (14) de la canette (5), une fois le couvercle (1) ôté,ce qui facilite encore d'avantage l'utilisation par l'utilisateur du système d' ouverture selon l'invention .Cette encoche se situra de préférence sur le bord de la canette. r00331 Le couvercle avec sa couronne (8) décrit jusqu'ici a une forme essentiellement circulaire. Dans une forme alternative d'exécution, il peutAΌ the envelope (12). r00311 The user can also open and close the bobbin using the lid as many times as he wishes and it is no longer necessary to empty the entire contents of the bobbin at once. Thanks to the opening system according to the present invention, the taste qualities of the contents of the can are not altered étant, given the speed with which the can can be opened and closed. This is particularly advantageous in the case of carbonated drinks since, thanks to this system, the gas is preserved. However, the invention also applies to containers which may contain other types of content, including solids. Likewise, this invention applies in an advantageous manner to the food industry, but may also relate to other fields of industry. r00321 It will also be noted that advantageously, the tongue (2) of the opening system according to the invention may include a notch by which it is possible to hang the cover (1) on the upper edge ζ (14) of the can (5), once the cover (1) removed, which further facilitates the use by the user of the opening system according to the invention. This notch will preferably be located on the edge of the can. r00331 The cover with its crown (8) described so far has an essentially circular shape. In an alternative form of execution, it may

3o également avoir une forme polygonal . 1*00341 Selon l'invention, on peut également prévoir d'utiliser le système d'ouverture et notamment le couvercle comme support d'information. On peut aussi par exemple prévoir de placer des supports publicitaires sur la face interne du couvercle. 3o also have a polygonal shape. 1 * 00341 According to the invention, provision can also be made to use the opening system and in particular the cover as an information medium. One can also for example provide for placing advertising media on the inner face of the cover.

Claims

Revendications 1. Système d'ouverture pour canette comprenant au moins un couvercle (1) muni d'une languette (2) , caractérisé en ce que ledit système peut être 5 refermé. 2. Système selon la revendication (1), caractérisé en ce que ledit couvercle (1 ) est suffisamment flexible pour pouvoir être déformé mécaniquement de manière réversible par actionnement de la languette (2) et/ou directement sous l'effet de forces mécaniques extérieures. o 3. Système selon la revendication (1) ou (2), caractérisé en ce que le couvercle (1) se présente sous la forme d'un disque, essentiellement circulaire ou polygonal, comprenant une face externe (4) exposée à l'environnement et une face interne (3) non exposée à l'environnement lorsque le couvercle (1) est en place sur une canette (5), la languette (2)Claims 1. Opening system for a can comprising at least one cover (1) provided with a tongue (2), characterized in that said system can be closed. 2. System according to claim (1), characterized in that said cover (1) is sufficiently flexible to be able to be deformed mechanically in a reversible manner by actuation of the tongue (2) and / or directly under the effect of external mechanical forces . o 3. System according to claim (1) or (2), characterized in that the cover (1) is in the form of a disc, essentially circular or polygonal, comprising an external face (4) exposed to the environment and an internal face (3) not exposed to the environment when the cover (1) is in place on a can (5), the tongue (2) •45 comprenant une extrémité libre (7) faisant protrusion vers l'extérieur du disque. • 45 comprising a free end (7) protruding towards the outside of the disc. 4. Système selon la revendication (3), caractérisé en ce qu'il est capable d'adopter une position ouverte et une position fermée, ladite position ouverte correspondant à une position du système dans laquelle le couvercle (1) est 2.0 convexe et la languette (2) a son extrémité libre (7) inclinée vers le haut, et ladite position fermée correspondant à une position du système dans laquelle le couvercle (1) est concave et la languette (2) a son extrémité libre (7) inclinée vers le haut. 5. Système selon l'une des revendications précédentes, caractérisé en ce que 2.4. System according to claim (3), characterized in that it is capable of adopting an open position and a closed position, said open position corresponding to a position of the system in which the cover (1) is 2.0 convex and the tongue (2) at its free end (7) inclined upwards, and said closed position corresponding to a position of the system in which the cover (1) is concave and the tongue (2) at its free end (7) inclined towards the top. 5. System according to one of the preceding claims, characterized in that 2. 5 le couvercle (1 ) est en outre muni sur son bord (10), de préférence du côté de sa face interne (3), d'une couronne (8) munie d'une matière dite élastique ou autre matière adéquate (12) fixé sur sa face externe. La couronne étant susceptible de varier par actionnement de l'extrémité (7) de la languette (2) et/ou sous l'effet de forces mécaniques extérieures, ledit écartement est 30 minimal lorsque le couvercle (1 ) est en position ouverte, et maximal lorsque le couvercle (1) est en position fermée. 5 the cover (1) is further provided on its edge (10), preferably on the side of its internal face (3), with a crown (8) provided with a so-called elastic material or other suitable material (12) fixed on its external face. The crown being able to vary by actuation of the end (7) of the tongue (2) and / or under the effect of external mechanical forces, said spacing is minimal when the cover (1) is in the open position, and maximum when the cover (1) is in the closed position. 6. Canette (5) comprenant un système d'ouverture selon l'une des revendications précédentes. 6. Bobbin (5) comprising an opening system according to one of the preceding claims. 7. Canette (5) selon la revendication (6), caractérisée en ce qu'on définit pour 55 cette canette une position fermée et une position ouverte auxquelles correspondent la position fermée et la position ouverte respectivement du système d'ouverture, la canette présentant à son sommet dans les deux positions une ouverture d'accès (9) délimitée par un bord (11), ladite ouverture (9) étant exposée ou non à l'environnement selon que le système o d'ouverture est en position ouverte ou fermée respectivement. 7. Bobbin (5) according to claim (6), characterized in that for 55 this bobbin is defined a closed position and an open position to which correspond the closed position and the open position respectively of the opening system, the bobbin having at its apex in the two positions an access opening (9) delimited by an edge (11), said opening (9) being exposed or not to the environment depending on whether the opening system is in the open or closed position respectively. 8. Canette selon l'une des revendications précédentes, caractérisée en ce qu'en position fermée le bord (10) du couvercle (1) repose sur le bord (16) de l'ouverture d'accès (9) de la canette (5) dans un position de blocage, et la couronne (8) du couvercle (1), muni de sa matière dite élastique (12), US pénètrent dans l'ouverture (9) de la canette (5) et font pression sur la matière dite élastique qui se déformera et rendra la fermeture opaque et de façon à bloquer tout mouvement du couvercle (1) par rapport à la canette (5). 8. Can according to one of the preceding claims, characterized in that in the closed position the edge (10) of the cover (1) rests on the edge (16) of the access opening (9) of the can ( 5) in a blocking position, and the crown (8) of the cover (1), provided with its so-called elastic material (12), US penetrate into the opening (9) of the can (5) and put pressure on the so-called elastic material which will deform and make the closure opaque and so as to block any movement of the cover (1) relative to the can (5). 9. Canette selon l'une des revendications précédentes, caractérisée en ce qu'avant toute utilisation de la canette (5), le système d'ouverture de la canette en position fermée est tel que sa couronne (8) est soudée sur le bord (11 ) de l'ouverture (9) de la canette (5). Mais elle peut aussi sortir de l'usine de façon dite position fermée comme ilustre la figure (1a').9. Bobbin according to one of the preceding claims, characterized in that before any use of the bobbin (5), the opening system of the bobbin in the closed position is such that its crown (8) is welded to the edge (11) of the opening (9) of the bobbin (5). But it can also leave the factory in a so-called closed position as illustrated in the figure (1a '). 10. Utilisation du système d'ouverture et/ou de la canette selon l'une des revendications précédentes dans le domaine agro-alimentaire, de préférence dans le domaine des boissons. 10. Use of the opening system and / or the can according to one of the preceding claims in the food industry, preferably in the beverage industry.
PCT/BE2004/000016 2003-09-15 2004-01-30 Resealable opening system for cans Ceased WO2005026004A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2003/0496 2003-09-15
BE200300496 2003-09-15

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459387A (en) * 2008-04-24 2009-10-28 Sarbjit Singh Bansia Bistable pull tab
WO2009149846A1 (en) * 2008-06-12 2009-12-17 Canrec Ag Drinks-can-lid closure
WO2010022951A1 (en) * 2008-08-29 2010-03-04 Wb Innovations Limited Drink can closure element
WO2011051302A1 (en) * 2009-10-27 2011-05-05 Crown Packaging Technology, Inc. Tab
WO2011107558A1 (en) * 2010-03-03 2011-09-09 Wb Innovations Limited Drink can closure element
WO2022089388A1 (en) * 2020-10-26 2022-05-05 苏州斯莱克精密设备股份有限公司 Resealable easy-to-pull cover

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Publication number Priority date Publication date Assignee Title
US3559843A (en) * 1968-07-26 1971-02-02 Dart Ind Inc Closure for containers
DE3703875A1 (en) * 1987-02-07 1988-08-18 Fischbach A Kg Container with circular filling aperture and lid
DE19912880A1 (en) * 1998-07-08 2000-01-13 Duschek Franz Drinks can with pull tab device has tab lever with actuator arm placed above opening in can lid and plug element to seal opening in cover
FR2826940A1 (en) * 2001-07-05 2003-01-10 Abdel Nasser Fares Drinks can has conventional ring-pull opening system, but ring pull contains concave molded section, ring-pull being swiveled about rivet after opening and pressed into pouring aperture to seal it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3559843A (en) * 1968-07-26 1971-02-02 Dart Ind Inc Closure for containers
DE3703875A1 (en) * 1987-02-07 1988-08-18 Fischbach A Kg Container with circular filling aperture and lid
DE19912880A1 (en) * 1998-07-08 2000-01-13 Duschek Franz Drinks can with pull tab device has tab lever with actuator arm placed above opening in can lid and plug element to seal opening in cover
FR2826940A1 (en) * 2001-07-05 2003-01-10 Abdel Nasser Fares Drinks can has conventional ring-pull opening system, but ring pull contains concave molded section, ring-pull being swiveled about rivet after opening and pressed into pouring aperture to seal it

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459387A (en) * 2008-04-24 2009-10-28 Sarbjit Singh Bansia Bistable pull tab
GB2459387B (en) * 2008-04-24 2012-07-04 Sarbjit Singh Bansia Opening device
WO2009149846A1 (en) * 2008-06-12 2009-12-17 Canrec Ag Drinks-can-lid closure
JP2011522751A (en) * 2008-06-12 2011-08-04 キャンレク アーゲー Beverage can lid seal
RU2493068C2 (en) * 2008-06-12 2013-09-20 Канрек Аг Shutter for can with beverage, can lid, can with lid
US8770425B2 (en) 2008-06-12 2014-07-08 Canrec Ag Beverage can lid
WO2010022951A1 (en) * 2008-08-29 2010-03-04 Wb Innovations Limited Drink can closure element
US8651318B2 (en) 2008-08-29 2014-02-18 Wb Innovations Limited Beverage can having deflecting closure element
WO2011051302A1 (en) * 2009-10-27 2011-05-05 Crown Packaging Technology, Inc. Tab
WO2011107558A1 (en) * 2010-03-03 2011-09-09 Wb Innovations Limited Drink can closure element
WO2022089388A1 (en) * 2020-10-26 2022-05-05 苏州斯莱克精密设备股份有限公司 Resealable easy-to-pull cover

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