EP1124734A1 - Screw top with tearaway strip - Google Patents

Screw top with tearaway strip

Info

Publication number
EP1124734A1
EP1124734A1 EP99950874A EP99950874A EP1124734A1 EP 1124734 A1 EP1124734 A1 EP 1124734A1 EP 99950874 A EP99950874 A EP 99950874A EP 99950874 A EP99950874 A EP 99950874A EP 1124734 A1 EP1124734 A1 EP 1124734A1
Authority
EP
European Patent Office
Prior art keywords
container
ring
arms
plug
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99950874A
Other languages
German (de)
French (fr)
Other versions
EP1124734B1 (en
Inventor
Claude Benoit-Gonin
Jean-Yves Rognard
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.)
Crown Packaging Technology Inc
Original Assignee
Crown Cork and Seal Technologies Corp
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 Crown Cork and Seal Technologies Corp filed Critical Crown Cork and Seal Technologies Corp
Publication of EP1124734A1 publication Critical patent/EP1124734A1/en
Application granted granted Critical
Publication of EP1124734B1 publication Critical patent/EP1124734B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/16—Devices preventing loss of removable closure members
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D2251/10—Details of hinged closures
    • B65D2251/1008—Means for locking the closure in open position

Definitions

  • the invention aims to provide a closure device which overcomes all of these drawbacks.
  • This device must be able to be installed on any type of container but in particular intended for containers in current use, produced in large series, such as bottles of mineral water, the operation of installation of the device having to be able to be performed mechanically and at a high rate.
  • the invention also aims to provide a plugging device easy to handle with regard to the opening and closing of the container, ensuring reliable retention of the stopper on the container, inexpensive to manufacture and to install on the container and having an attractive visual appearance.
  • the device it relates to is of the type set out above, the preamble of claim 1 corresponding to the teaching of the aforementioned prior patent.
  • the ring and / or at least one arm is, before the first opening of the container, connected to the stopper and / or to the film hinge by frangible bridges, intended to break during this first opening.
  • frangible bridges intended to break during this first opening.
  • the neck 2a of the container 2 comprises a flange 10, delimiting a conical bearing upper, going widening towards the bottom of the container 2, and a shoulder at its lower part, consecutive to said bearing.
  • the arms 4 are, as shown more particularly in FIGS. 1 to 4 and 8, inscribed in the thickness of the ring 3 and individualized by recesses arranged in this thickness. It follows that the ring 3 has, at the base of these arms 4, a portion 3a of height less than the height it has in the other locations of its circumference. This lower height, combined with the aforementioned clearance, allows a certain deformation of the ring 3 in the circumferential direction as will be described later.

Abstract

A cap is provided including a ring held axially on that part of the container which delimits the opening of this container, and two arms in the form of an arc of a circle, each of which is connected to the cap on the one hand, by means of a film hinge and parts that are able to fold, and to the ring on the other hand. These arms allow the cap to be tilted outwards with respect to the container so as to be released from the opening of the container.According to the invention, the cap includes means shaped so as to bear, at the time of the said tilting, against the container and to exert, via this bearing, a pulling on the said arms, this pulling being non-existent or minimal in the positions of engagement of the cap over the opening of the container and of complete release of this cap beyond this opening, but being maximal in the intermediate position of the cap between these two positions.

Description

BOUCHON A VIS AVEC BANDE DE GARANTIE SCREW CAP WITH WARRANTY STRIP
La présente invention concerne un dispositif de bouchage, comprenant des moyens pour empêcher la séparation complète d'un récipient et du bouchon assurant la fermeture de ce récipient. II est connu par le brevet US 5 215 204 de réaliser un dispositif de bouchage, comprenantThe present invention relates to a closure device, comprising means for preventing the complete separation of a container and the stopper ensuring the closure of this container. It is known from US Pat. No. 5,215,204 to produce a closure device, comprising
- un bouchon dont la jupe latérale est munie de moyens pour sa venue en prise avec un récipient, ce bouchon pouvant, dans une position, être placé sur l'ouverture du récipient de manière à clore ce récipient, et, dans une autre position, être dégagé de cette ouverture de manière à permettre l'accès à l'intérieur du récipient ;a stopper, the side skirt of which is provided with means for its engagement with a container, this stopper being able, in one position, to be placed on the opening of the container so as to close this container, and, in another position, be released from this opening so as to allow access to the interior of the container;
- une bague engagée sur la partie du récipient délimitant ladite ouverture, et retenue axialement sur celle-ci, eta ring engaged on the part of the container delimiting said opening, and retained axially thereon, and
- deux bras en forme d'arc de cercle, dont chacun est relié au bouchon d'une part, par l'intermédiaire d'une charnière-film et de parties susceptibles de ployer, et à la bague d'autre part, les bras étant reliés à la bague en des emplacements angulairement distants par rapport à la charnière-film ; lesdites parties susceptibles de ployer permettent le pivotement des bras entre une position de repliage, dans laquelle ces bras sont placés à proximité de la bague et dans laquelle le bouchon est axialement proche de la bague, et une position de dépliage, dans laquelle ces bras sont pivotes par rapport à la charnière-film et à la bague ; dans cette même position de dépliage, les bras, par leur longueur, permettent au bouchon d'être amené dans une position axialement éloignée de la bague, cette position étant suffisante pour permettre de libérer lesdits moyens de venue du bouchon en prise avec le récipient et de basculer ledit bouchon vers l'extérieur par rapport à ce récipient afin d'amener ce bouchon dans la position dans laquelle il est dégagé de l'ouverture du récipient. Le dispositif selon ce document présente l'inconvénient que le bouchon tend à se placer normalement au-dessus de l'ouverture du récipient, compte tenu du rappel élastique de la matière synthétique qui constitue ce dispositif. Cette position du bouchon gêne notablement l'écoulement du produit contenu dans le récipient et oblige l'utilisateur à maintenir le bouchon en position de basculement lors de cet écoulement. De plus, le fonctionnement de ce dispositif n'est pas très attractif, et la structure de ce dispositif pourrait être améliorée en vue d'un fonctionnement optimal.- two arms in the shape of an arc of a circle, each of which is connected to the plug on the one hand, by means of a film hinge and of parts liable to bend, and to the ring on the other hand, the arms being connected to the ring at locations angularly distant from the film hinge; said parts capable of bending allow the arms to pivot between a folding position, in which these arms are placed close to the ring and in which the plug is axially close to the ring, and an unfolding position, in which these arms are pivot with respect to the film hinge and the ring; in this same unfolding position, the arms, by their length, allow the plug to be brought into a position axially distant from the ring, this position being sufficient to allow the said means for coming from the plug to be released in engagement with the container and tilting said cap outwardly relative to this container in order to bring this cap into the position in which it is released from the opening of the container. The device according to this document has the disadvantage that the plug tends to be placed normally above the opening of the container, taking into account the elastic return of the synthetic material which constitutes this device. This position of the plug significantly impedes the flow of the product contained in the container and obliges the user to maintain the plug in the tilting position during this flow. In addition, the operation of this device is not very attractive, and the structure of this device could be improved for optimal operation.
L'invention a pour objectif de fournir un dispositif de bouchage qui remédie à l'ensemble de ces inconvénients. Ce dispositif doit pouvoir être mis en place sur tout type de récipient mais en particulier destiné à des récipients à usage courant, produits en grandes séries, tels que les bouteilles d'eau minérale, l'opération de mise en place du dispositif devant pouvoir être accomplie de manière mécanisée et à cadence élevée. L'invention a également pour objectif de fournir un dispositif de bouchage facile à manipuler en ce qui concerne l'ouverture et la fermeture du récipient, assurant une rétention fiable du bouchon sur le récipient, peu onéreux à fabriquer et à mettre en place sur le récipient et présentant un aspect visuel attractif. Le dispositif qu'elle concerne est du type exposé ci-dessus, le préambule de la revendication 1 correspondant à l'enseignement du brevet antérieur précité.The invention aims to provide a closure device which overcomes all of these drawbacks. This device must be able to be installed on any type of container but in particular intended for containers in current use, produced in large series, such as bottles of mineral water, the operation of installation of the device having to be able to be performed mechanically and at a high rate. The invention also aims to provide a plugging device easy to handle with regard to the opening and closing of the container, ensuring reliable retention of the stopper on the container, inexpensive to manufacture and to install on the container and having an attractive visual appearance. The device it relates to is of the type set out above, the preamble of claim 1 corresponding to the teaching of the aforementioned prior patent.
Selon l'invention, le bouchon comprend des moyens conformés pour prendre appui, lors dudit basculement, contre le récipient et pour exercer, par cette prise d'appui, une traction sur lesdits bras, cette traction étant inexistante ou minimale dans les positions d'engagement du bouchon sur l'ouverture du récipient et de complet dégagement de ce bouchon au-delà de cette ouverture, mais étant maximale dans la position du bouchon intermédiaire entre ces deux positions. Les moyens précités, conjointement à la possibilité d'étirement élastique rendue possible par les bras, permettent ainsi de créer un point dur à mi-course de basculement du bouchon, de sorte que le dispositif est "bi-stable".According to the invention, the stopper comprises means designed to bear, during said tilting, against the container and to exert, by this support grip, traction on said arms, this traction being non-existent or minimal in the positions of engagement of the stopper on the opening of the container and complete release of this stopper beyond this opening, but being maximum in the position of the stopper intermediate between these two positions. The aforementioned means, together with the possibility of elastic stretching made possible by the arms, thus make it possible to create a hard point at mid-stroke of the plug tilting, so that the device is "bi-stable".
Cette bi-stabilité permet de parfaitement maintenir le bouchon dans sa position de basculement, à encontre du rappel élastique du matériau synthétique constituant le dispositif ; l'utilisateur n'a donc pas à maintenir le bouchon en position de basculement lors de l'écoulement du produit contenu dans le récipient.This bi-stability makes it possible to perfectly maintain the plug in its tilting position, against the elastic return of the synthetic material constituting the device; the user therefore does not have to keep the stopper in the tilting position during the flow of the product contained in the container.
En outre, cette bi-stabilité confère au dispositif une manipulation attractive. Lesdits moyens peuvent être constitués par une languette faisant saillie axialement de la jupe du bouchon, à proximité de ladite charnière-film.In addition, this bi-stability gives the device an attractive handling. Said means may be constituted by a tongue projecting axially from the skirt of the plug, near said film hinge.
Le bord de la languette venant en appui contre le récipient est avantageusement arrondi, pour favoriser le roulement de cette languette le long de la paroi du récipient.The edge of the tongue coming to bear against the container is advantageously rounded, to favor the rolling of this tongue along the wall of the container.
Les moyens permettant une déformation du dispositif suffisante pour autoriser le pivotement des bras entre lesdites positions de repliage et de dépliage peuvent être constitués par un ou plusieurs des moyens suivants :The means allowing a deformation of the device sufficient to authorize the pivoting of the arms between said folding and unfolding positions can be constituted by one or more of the following means:
- un matériau constituant le dispositif de bouchage choisi parmi les matériaux, notamment le polyéthylène ou le polypropylène, qui présentent une possibilité d'étirement élastique ;- A material constituting the closure device chosen from materials, in particular polyethylene or polypropylene, which have a possibility of elastic stretching;
- un jeu entre la bague et le récipient, pour permettre, par la déformation de cette bague, le déplacement relatif, dans le sens circonférentiel, des extrémités des bras reliés à cette bague ;- A clearance between the ring and the container, to allow, by the deformation of this ring, the relative movement, in the circumferential direction, of the ends of the arms connected to this ring;
- au moins une fente ou une encoche aménagée au niveau de la charnière-film, pour permettre le déplacement relatif, dans le sens circonférentiel, des extrémités des bras reliés à cette charnière-film ; - des bras inscrits, en position de repliage, dans l'épaisseur de la bague et individualisés par des évidements aménagés dans cette épaisseur, de sorte que la bague présente, à l'aplomb des bras, une hauteur inférieure à la hauteur qu'elle présente dans les autres emplacements de sa circonférence, cette hauteur inférieure favorisant sa déformation lors du déplacement des bras.- At least one slot or notch arranged at the film hinge, to allow relative movement, in the circumferential direction, of the ends of the arms connected to this film hinge; arms inscribed, in the folded position, in the thickness of the ring and individualized by recesses arranged in this thickness, so that the ring has, below the arms, a height less than the height it present in the other locations of its circumference, this lower height promoting its deformation during the movement of the arms.
De préférence, la bague et/ou au moins un bras est, avant la première ouverture du récipient, relié(e) au bouchon et/ou à la charnière- film par des ponts frangibles, destinés à se rompre lors de cette première ouverture. Ces ponts constituent non seulement des témoins d'inviolabilité du récipient mais permettent en outre de conférer une parfaite homogénéité de structure au dispositif.Preferably, the ring and / or at least one arm is, before the first opening of the container, connected to the stopper and / or to the film hinge by frangible bridges, intended to break during this first opening. These bridges are not only witnesses to the inviolability of the container but also make it possible to impart perfect structural homogeneity to the device.
Avantageusement, lesdits moyens pour la venue du bouchon en prise avec le récipient sont de type à vis et la bague est montée libre en rotation sur le récipient. Le dévissage du bouchon provoque le déplacement précité des bras et, le cas échéant, la rupture des ponts constituant les témoins d'inviolabilité.Advantageously, said means for bringing the plug into engagement with the container are of the screw type and the ring is mounted to rotate freely on the container. Unscrewing the plug causes the aforementioned displacement of the arms and, if necessary, the rupture of the bridges constituting the tamper-evident indicators.
Selon une forme de réalisation préférée de l'invention, le bouchon comprend deux charnières-film aménagées de part et d'autre d'une languette telle que précitée, un bras étant relié à chacune de ces charnières-film.According to a preferred embodiment of the invention, the plug comprises two film hinges arranged on either side of a tongue as mentioned above, an arm being connected to each of these film hinges.
Ces deux charnières-film situées de part et d'autre de ladite languette permettent un déplacement stable des bras et un basculement stable du bouchon par rapport au récipient.These two film hinges located on either side of said tab allow stable movement of the arms and stable tilting of the plug relative to the container.
Pour sa bonne compréhension, l'invention est à nouveau décrite ci-dessous en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme de réalisation préférée du dispositif de bouchage qu'elle concerne. La figure 1 en est une vue en perspective, avant montage sur un récipient ; la figure 2 en est une vue de côté, après montage sur le récipient et avant première ouverture de ce récipient ; la figure 3 en est une vue partielle, en coupe selon le plan de la feuille sur la figure 2 ; la figure 4 en est une vue de côté similaire à la figure 2, en cours d'ouverture du récipient ; la figure 5 en est une vue partielle, en coupe selon le plan de la feuille sur la figure 4 ; les figures 6 et 7 en sont des vues partielles, en coupe respectivement selon les lignes VI-VI et VII-VII de la figure 4, et la figure 8 en est une vue de côté, selon une direction perpendiculaire aux vues des figures 2 et 4, en position de pleine ouverture du récipient. Les figures représentent un dispositif de bouchage 1 d'un récipient 2, comprenant une bague 3, deux bras 4, deux charnières-film 5 et un bouchon 6, l'ensemble étant venu de moulage en une seule pièce de matière synthétique telle que du polyéthylène.For a good understanding, the invention is again described below with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, a preferred embodiment of the closure device which it relates to. Figure 1 is a perspective view, before mounting on a container; Figure 2 is a side view, after mounting on the container and before first opening of the container; Figure 3 is a partial view, in section along the plane of the sheet in Figure 2; Figure 4 is a side view similar to Figure 2, during opening of the container; Figure 5 is a partial view, in section along the plane of the sheet in Figure 4; Figures 6 and 7 are partial views, in section respectively along lines VI-VI and VII-VII of Figure 4, and Figure 8 is a side view, in a direction perpendicular to the views of Figures 2 and 4, in the fully open position of the container. The figures show a closure device 1 for a container 2, comprising a ring 3, two arms 4, two film hinges 5 and a plug 6, the assembly having come from molding in a single piece of synthetic material such as polyethylene.
Il apparaît aux figures 3 à 5 et 8, notamment, que le goulot 2a du récipient 2 comprend une collerette 10, délimitant une portée conique supérieure, allant s'élargissant en direction du bas du récipient 2, et un épaulement à sa partie inférieure, consécutif à ladite portée.It appears in Figures 3 to 5 and 8, in particular, that the neck 2a of the container 2 comprises a flange 10, delimiting a conical bearing upper, going widening towards the bottom of the container 2, and a shoulder at its lower part, consecutive to said bearing.
Ce goulot 2a comprend également des nervures hélicoïdales 1 1 formant un pas de vis pour permettre l'ouverture et la fermeture du récipient 2 par vissage ou dévissage du bouchon 6.This neck 2a also includes helical ribs 1 1 forming a thread to allow the opening and closing of the container 2 by screwing or unscrewing the plug 6.
La bague 3 comprend des languettes internes 12 reliées à sa partie inférieure par des portions amincies et faisant saillie radialement vers l'intérieur. Ces languettes 12 sont destinées, comme le montrent les figures 3, 5, 6 et 7, à glisser contre ladite portée lors de la première mise en place du dispositif 1 sur le goulot 2a, jusqu'à dépasser l'extrémité inférieure de cette portée, puis se verrouiller, par rappel élastique, derrière ledit épaulement. La bague 3 se trouve ainsi immobilisée axialement sur le goulot 2a tout en pouvant tourner par rapport à celui-ci.The ring 3 comprises internal tongues 12 connected to its lower part by thinned portions and projecting radially inwards. These tongues 12 are intended, as shown in FIGS. 3, 5, 6 and 7, to slide against said bearing during the first positioning of the device 1 on the neck 2a, until it exceeds the lower end of this bearing , then lock, by elastic return, behind said shoulder. The ring 3 is thus immobilized axially on the neck 2a while being able to rotate relative to the latter.
Il existe un léger jeu entre la bague 3 et le goulot 2a. Les bras 4 sont, ainsi que le montrent plus particulièrement les figures 1 à 4 et 8, inscrits dans l'épaisseur de la bague 3 et individualisés par des évidements aménagés dans cette épaisseur. Il en résulte que la bague 3 présente, à l'aplomb de ces bras 4, une portion 3a de hauteur inférieure à la hauteur qu'elle présente dans les autres emplacements de sa circonférence. Cette hauteur moindre, combinée au jeu précité, permet une certaine déformation de la bague 3 dans le sens circonférentiel ainsi que cela sera décrit plus loin.There is a slight clearance between the ring 3 and the neck 2a. The arms 4 are, as shown more particularly in FIGS. 1 to 4 and 8, inscribed in the thickness of the ring 3 and individualized by recesses arranged in this thickness. It follows that the ring 3 has, at the base of these arms 4, a portion 3a of height less than the height it has in the other locations of its circumference. This lower height, combined with the aforementioned clearance, allows a certain deformation of the ring 3 in the circumferential direction as will be described later.
La bague 3 comprend en outre des portions 3b d'épaisseur augmentée ou des plots 3c, pour soutenir le bouchon 6 et les bras 4 en cas de charges importantes exercées sur ce dernier.The ring 3 further comprises portions 3b of increased thickness or studs 3c, to support the plug 6 and the arms 4 in the event of heavy loads exerted on the latter.
Chaque bras 4 présente une forme en arc de cercle et est relié, par des parties 4a d'épaisseur suffisamment réduite pour pouvoir ployer, au bouchon 6 d'une part, au niveau de l'une des charnières-film 5, et à la bague 3 d'autre part. Chaque bras 4 est relié à la bague 3 en un emplacement angulairement distant par rapport à la charnière-film 5 à laquelle il est relié, l'angle formé par cet emplacement et cette charnière-film étant, dans l'exemple représenté, de l'ordre de 45 à 50 degrés.Each arm 4 has a circular arc shape and is connected, by parts 4a of sufficiently reduced thickness to be able to bend, to the plug 6 on the one hand, at one of the film hinges 5, and to the ring 3 on the other hand. Each arm 4 is connected to the ring 3 at a location angularly distant from the film hinge 5 to which it is connected, the angle formed by this location and this film hinge being, in the example shown, of the '' from 45 to 50 degrees.
Les bras 4 présentent en outre des portions 4b d'épaisseur augmentée, pour constituer également des zones de soutien du bouchon 6 en cas de charge. Ces portions 4b sont reliées aux charnières-film 5, par des ponts frangibles 15, destinés à se rompre lors de la première ouverture du récipient 2.The arms 4 also have portions 4b of increased thickness, to also form support zones for the plug 6 in the event of a load. These portions 4b are connected to the film hinges 5, by frangible bridges 15, intended to break when the container 2 is first opened.
Les charnières-film 5 sont constituées par des parois d'épaisseur réduite, de forme triangulaire, reliées à la paroi du bouchon 6 d'une part et aux bras 4 d'autre part.The film hinges 5 are constituted by walls of reduced thickness, of triangular shape, connected to the wall of the plug 6 on the one hand and to the arms 4 on the other hand.
La souplesse autorisant le basculement du bouchon 6 montré à la figure 8 est obtenue par cette forme triangulaire et par l'aménagement dans le bouchon 6 de voiles de matière 16 ayant une épaisseur limitée, ainsi que de fentes 17. Le bouchon 6 comprend, quant à lui, une jupe 6a pourvue de nervures hélicoïdales 20 complémentaires de celles du goulot 2a.The flexibility authorizing the tilting of the plug 6 shown in FIG. 8 is obtained by this triangular shape and by the arrangement in the plug 6 of webs of material 16 having a limited thickness, as well as slots 17. The plug 6 comprises, as to him, a skirt 6a provided with helical ribs 20 complementary to those of the neck 2a.
Il comprend en outre une languette 21 faisant axialement saillie de cette jupe 6a, entre les deux charnières-film 5.It further comprises a tongue 21 projecting axially from this skirt 6a, between the two film hinges 5.
Il apparaît notamment aux figures 2 et 4 que ces dernières sont symétriques par rapport à l'axe médian de la languette 21 et que chacune d'elles présente, à partir du bord latéral correspondant de la languette 21 , deux côtés obliques qui divergent, puis se termine, du côté opposé à ce bord de la languette 21 , par un côté parallèle à ce même bord.It appears in particular in FIGS. 2 and 4 that the latter are symmetrical with respect to the median axis of the tongue 21 and that each of them has, from the corresponding lateral edge of the tongue 21, two oblique sides which diverge, then ends, on the side opposite this edge of the tongue 21, by a side parallel to this same edge.
Cette languette 21 est reliée aux charnières-film 5 par deux ponts de matière 22, permettant la cohésion de l'ensemble et dessinant une ligne de flexion. La languette 21 comprend également un bord inférieur extérieur arrondi, destiné à prendre appui et à rouler contre la paroi du goulot 2a.This tongue 21 is connected to the film hinges 5 by two bridges of material 22, allowing the cohesion of the assembly and drawing a line of flexion. The tongue 21 also includes a rounded external lower edge, intended to bear and roll against the wall of the neck 2a.
Cette languette 21 a une longueur telle que, lors du basculement du bouchon 6 montré à la figure 8, elle prend appui contre le récipient 2 et exerce, par cette prise d'appui, une traction sur les bras 4. Cette traction est inexistante dans les positions d'engagement du bouchon 6 sur l'ouverture du récipient 2 (figure 4) et de complet dégagement de ce bouchon 6 au-delà de cette ouverture (figure 8), mais est maximale, la languette 21 étant alors fléchie, dans la position du bouchon 6 intermédiaire entre ces deux positions.This tongue 21 has a length such that, during the tilting of the plug 6 shown in FIG. 8, it bears against the container 2 and exerts, by this support, traction on the arms 4. This traction is nonexistent in the positions of engagement of the plug 6 on the opening of the container 2 (FIG. 4) and of complete release of this plug 6 beyond this opening (FIG. 8), but is maximum, the tongue 21 then being bent, in the position of the plug 6 intermediate between these two positions.
En pratique, le dispositif 1 est mis en place sur le récipient 2 par simple vissage, jusqu'au verrouillage des languettes 12 au-delà deIn practice, the device 1 is put in place on the container 2 by simple screwing, until the tongues 12 are locked beyond
Pépaulement de la collerette 10. Lors du premier dévissage, le bouchon 6 quitte progressivement sa position axialement proche de la bague 3 (figureShoulder of the collar 10. During the first unscrewing, the plug 6 gradually leaves its position axially close to the ring 3 (FIG.
2) jusqu'à atteindre la position axialement éloignée de cette bague 3 (figure 4), dans laquelle les nervures hélicoïdales 1 1 , 20 du récipient 2 et du bouchon 6 sont hors de prise. Les ponts 15 se rompent au cours de ce mouvement et les bras 4 passent de leur position de repliage montrée à la figure 2 à la position de dépliage montrée aux figures 4 et 8, par pivotement autour des parties 4a.2) until reaching the axially distant position of this ring 3 (Figure 4), wherein the helical ribs 1 1, 20 of the container 2 and the plug 6 are out of engagement. The bridges 15 break during this movement and the arms 4 pass from their folding position shown in FIG. 2 to the unfolding position shown in FIGS. 4 and 8, by pivoting around the parts 4a.
Ce pivotement des bras 4 est rendu possible par l'extensibilité élastique du matériau constituant le dispositif 1 , par la déformation de la bague 3 rendue possible grâce au jeu existant entre le goulot 2a et cette bague 3, par la portion 3a amincie de la bague 3 et par les fentes 17 existant entre les charnières-film 5 et le bouchon 6 ainsi qu'entre les charnières-film 5 et la languette 21.This pivoting of the arms 4 is made possible by the elastic extensibility of the material constituting the device 1, by the deformation of the ring 3 made possible by the play existing between the neck 2a and this ring 3, by the thinned portion 3a of the ring 3 and by the slots 17 existing between the film hinges 5 and the plug 6 as well as between the film hinges 5 and the tongue 21.
Le bouchon 6, une fois dans la position montrée à la figure 4, peut être basculé jusque dans la position montrée à la figure 8, grâce aux charnières-film 5 et par roulement et déformation de la languette 21 contre le goulot 2a.The plug 6, once in the position shown in Figure 4, can be tilted into the position shown in Figure 8, thanks to the film hinges 5 and by rolling and deformation of the tongue 21 against the neck 2a.
Cette languette 21 permet au bouchon 6 d'être "bi-stable" entre les positions montrées aux figures 4 et 8, ce qui permet une manipulation attractive du dispositif 1.This tongue 21 allows the plug 6 to be "bi-stable" between the positions shown in FIGS. 4 and 8, which allows attractive manipulation of the device 1.
L'invention fournit ainsi un dispositif de bouchage permettant de remédier aux inconvénients des dispositifs homologues de la technique antérieure puisqu'il peut être mis en place sur tout type de récipient, en particulier des récipients à usage courant, produits en grandes séries, tels que les bouteilles d'eau minérale, l'opération de mise en place du dispositif pouvant être accomplie de manière mécanisée et à cadence élevée ; ce dispositif est en outre facile à manipuler en ce qui concerne l'ouverture et la fermeture du récipient, assure une rétention fiable du bouchon sur le récipient, est peu onéreux à fabriquer et à mettre en place sur le récipient et présente un aspect visuel attractif. The invention thus provides a closure device making it possible to remedy the drawbacks of homologous devices of the prior art since it can be placed on any type of container, in particular containers for current use, produced in large series, such as bottles of mineral water, the operation of placing the device can be accomplished mechanically and at high speed; this device is also easy to handle with regard to opening and closing the container, ensures reliable retention of the stopper on the container, is inexpensive to manufacture and place on the container and has an attractive visual appearance. .

Claims

REVENDICATIONS
1 - Dispositif de bouchage, comprenant1 - Clogging device, comprising
- un bouchon (6) dont la jupe latérale (6a) est munie de moyens (20) pour sa venue en prise avec un récipient (2), ce bouchon (6) pouvant, dans une position, être placé sur l'ouverture du récipient (2) de manière à clore ce récipient (2), et, dans une autre position, être dégagé de cette ouverture de manière à permettre l'accès à l'intérieur du récipient (2) ;- A stopper (6) whose lateral skirt (6a) is provided with means (20) for its engagement with a container (2), this stopper (6) being able, in one position, to be placed on the opening of the container (2) so as to close this container (2), and, in another position, be released from this opening so as to allow access to the interior of the container (2);
- une bague (3) engagée sur la partie du récipient (2) délimitant ladite ouverture, et retenue axialement sur celle-ci, et - deux bras (4) en forme d'arc de cercle, dont chacun est relié au bouchon (6) d'une part, par l'intermédiaire d'une charnière-film (5) et de parties (4a) susceptibles de ployer, et à la bague (3) d'autre part, les bras (4) étant reliés à la bague (3) en des emplacements angulairement distants par rapport à la charnière-film (5) ; lesdites parties (4a) susceptibles de ployer permettent le pivotement des bras (4) entre une position de repliage, dans laquelle ces bras (4) sont placés à proximité de la bague (3) et dans laquelle le bouchon (6) est axialement proche de la bague (3), et une position de dépliage, dans laquelle ces bras (4) sont pivotes par rapport à la charnière-film (5) et à la bague (3), et, par leur longueur, permettent au bouchon (6) d'être amené dans une position axialement éloignée de la bague (3), cette position étant suffisante pour permettre de libérer lesdits moyens (1 1 , 20) de venue du bouchon (6) en prise avec le récipient (2) et de basculer ledit bouchon (6) vers l'extérieur par rapport à ce récipient afin d'amener ce bouchon (6) dans la position dans laquelle il est dégagé de l'ouverture du récipient (2) ; dispositif (1 ) caractérisé en ce que le bouchon (6) comprend des moyens (21 ) conformés pour prendre appui, lors dudit basculement, contre le récipient (2) et pour exercer, par cette prise d'appui, une traction sur lesdits bras (4), cette traction étant inexistante ou minimale dans les positions d'engagement du bouchon (6) sur l'ouverture du récipient (2) et de complet dégagement de ce bouchon (6) au-delà de cette ouverture, mais étant maximale dans la position du bouchon (6) intermédiaire entre ces deux positions.- a ring (3) engaged on the part of the container (2) delimiting said opening, and retained axially thereon, and - two arms (4) in the shape of an arc of a circle, each of which is connected to the stopper (6 ) on the one hand, by means of a film hinge (5) and parts (4a) capable of bending, and to the ring (3) on the other hand, the arms (4) being connected to the ring (3) at angularly distant locations relative to the film hinge (5); said parts (4a) capable of bending allow the arms (4) to pivot between a folding position, in which these arms (4) are placed close to the ring (3) and in which the plug (6) is axially close of the ring (3), and an unfolding position, in which these arms (4) are pivoted relative to the film hinge (5) and the ring (3), and, by their length, allow the plug ( 6) to be brought into a position axially distant from the ring (3), this position being sufficient to allow the said means (1 1, 20) coming from the stopper (6) to be released in engagement with the container (2) and tilting said plug (6) outwardly relative to this container in order to bring this plug (6) into the position in which it is released from the opening of the container (2); device (1) characterized in that the plug (6) comprises means (21) shaped to bear, during said tilting, against the container (2) and to exert, by this support, a traction on said arms (4), this traction being nonexistent or minimal in the positions of engagement of the plug (6) on the opening of the container (2) and of complete release of this plug (6) beyond this opening, but being maximum in the position of the plug (6) intermediate between these two positions.
2 - Dispositif selon la revendication 1 , caractérisé en ce que lesdits moyens sont constitués par une languette (21 ) faisant saillie axialement de la jupe (6a) du bouchon (6), à proximité de ladite charnière- film (5).2 - Device according to claim 1, characterized in that said means are constituted by a tongue (21) projecting axially of the skirt (6a) of the plug (6), near said film hinge (5).
3 - Dispositif selon la revendication 2, caractérisé en ce que le bord de la languette (21 ) venant en appui contre le récipient est arrondi. 4 - Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que les moyens permettant sa déformation suffisante pour autoriser le pivotement des bras (4) entre lesdites positions de repliage et de dépliage sont constitués par un ou plusieurs des moyens suivants :3 - Device according to claim 2, characterized in that the edge of the tongue (21) bearing against the container is rounded. 4 - Device according to one of claims 1 to 3, characterized in that the means allowing its sufficient deformation to allow the pivoting of the arms (4) between said folding and unfolding positions consist of one or more of the following means:
- un matériau constituant le dispositif de bouchage (1 ) choisi parmi les matériaux, notamment le polyéthylène ou le polypropylène, qui présentent une possibilité d'étirement élastique ;- A material constituting the closure device (1) chosen from materials, in particular polyethylene or polypropylene, which have a possibility of elastic stretching;
- un jeu entre la bague (3) et le récipient (2), pour permettre, par la déformation de cette bague (3), le déplacement relatif, dans le sens circonférentiel, des extrémités des bras (4) reliés à cette bague (3) ; - au moins une fente (17) ou une encoche aménagée au niveau de la charnière-film (5), pour permettre le déplacement relatif, dans le sens circonférentiel, des extrémités des bras (4) reliés à cette charnière-film (5) ;a clearance between the ring (3) and the container (2), to allow, by the deformation of this ring (3), the relative displacement, in the circumferential direction, of the ends of the arms (4) connected to this ring ( 3); - at least one slot (17) or a notch arranged at the level of the film hinge (5), to allow relative movement, in the circumferential direction, of the ends of the arms (4) connected to this film hinge (5) ;
- des bras (4) inscrits, en position de repliage, dans l'épaisseur de la bague (3) et individualisés par des évidements aménagés dans cette épaisseur, de sorte que la bague (3) présente, à l'aplomb des bras (4), une hauteur inférieure à la hauteur qu'elle présente dans les autres emplacements de sa circonférence.- arms (4) inscribed, in the folding position, in the thickness of the ring (3) and individualized by recesses arranged in this thickness, so that the ring (3) has, directly below the arms ( 4), a height less than the height that it presents in the other locations of its circumference.
5 - Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la bague et/ou au moins un bras (4) est, avant la première ouverture du récipient (2), relié(e) au bouchon et/ou à la charnière-film (5) par des ponts frangibles (15), destinés à se rompre lors de cette première ouverture.5 - Device according to one of claims 1 to 4, characterized in that the ring and / or at least one arm (4) is, before the first opening of the container (2), connected (e) to the cap and / or to the film hinge (5) by frangible bridges (15), intended to break during this first opening.
6 - Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que lesdits moyens pour la venue du bouchon (6) en prise avec le récipient (2) sont de type à vis et en ce que la bague (3) est montée libre en rotation sur le récipient (2).6 - Device according to one of claims 1 to 5, characterized in that said means for the coming of the plug (6) engaged with the container (2) are of screw type and in that the ring (3) is free rotationally mounted on the container (2).
7 - Dispositif selon l'une des revendications 2 à 6, caractérisé en ce que le bouchon (6) comprend deux charnières-film (5) aménagées de part et d'autre d'une languette (21 ) telle que précitée, chacun des bras (4) étant relié à l'une de ces charnières-film (5). 8 - Dispositif selon la revendication 7, caractérisé en ce que les charnières-film (5) ont une forme triangulaire et sont symétriques par rapport à l'axe médian de cette languette (21 ) ; chacune d'elles présente, à partir du bord latéral correspondant de la languette (21 ), deux côtés obliques qui divergent, puis se termine, du côté opposé à ce bord de la languette (21 ), par un côté parallèle à ce même bord.7 - Device according to one of claims 2 to 6, characterized in that the plug (6) comprises two film hinges (5) arranged on either side of a tongue (21) as mentioned above, each of arm (4) being connected to one of these film hinges (5). 8 - Device according to claim 7, characterized in that the film hinges (5) have a triangular shape and are symmetrical relative to the median axis of this tongue (21); each of them has, from the corresponding lateral edge of the tongue (21), two oblique sides which diverge, then ends, on the side opposite this edge of the tongue (21), by a side parallel to this same edge .
9 - Dispositif selon la revendication 8, caractérisé en ce que la languette (21 ) est reliée aux charnières-film (5) par deux ponts de matière (22). 9 - Device according to claim 8, characterized in that the tongue (21) is connected to the film hinges (5) by two bridges of material (22).
EP99950874A 1998-10-29 1999-10-28 Screw top with tearaway strip Expired - Lifetime EP1124734B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9813759A FR2785264B1 (en) 1998-10-29 1998-10-29 CAPPING DEVICE
FR9813759 1998-10-29
PCT/FR1999/002642 WO2000026108A1 (en) 1998-10-29 1999-10-28 Screw top with tearaway strip

Publications (2)

Publication Number Publication Date
EP1124734A1 true EP1124734A1 (en) 2001-08-22
EP1124734B1 EP1124734B1 (en) 2002-07-17

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US (1) US6474491B1 (en)
EP (1) EP1124734B1 (en)
AT (1) ATE220633T1 (en)
AU (1) AU6347899A (en)
BR (1) BR9914851A (en)
DE (1) DE69902186T2 (en)
ES (1) ES2178482T3 (en)
FR (1) FR2785264B1 (en)
MX (1) MXPA01004170A (en)
WO (1) WO2000026108A1 (en)

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ES2178482T3 (en) 2002-12-16
MXPA01004170A (en) 2002-04-24
AU6347899A (en) 2000-05-22
FR2785264A1 (en) 2000-05-05
US6474491B1 (en) 2002-11-05
FR2785264B1 (en) 2001-01-05
WO2000026108A1 (en) 2000-05-11
EP1124734B1 (en) 2002-07-17
DE69902186T2 (en) 2003-04-03
ATE220633T1 (en) 2002-08-15
BR9914851A (en) 2001-07-03
DE69902186D1 (en) 2002-08-22

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