EP1124734B1 - Screw top with tearaway strip - Google Patents

Screw top with tearaway strip Download PDF

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Publication number
EP1124734B1
EP1124734B1 EP99950874A EP99950874A EP1124734B1 EP 1124734 B1 EP1124734 B1 EP 1124734B1 EP 99950874 A EP99950874 A EP 99950874A EP 99950874 A EP99950874 A EP 99950874A EP 1124734 B1 EP1124734 B1 EP 1124734B1
Authority
EP
European Patent Office
Prior art keywords
container
cap
ring
arms
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.)
Expired - Lifetime
Application number
EP99950874A
Other languages
German (de)
French (fr)
Other versions
EP1124734A1 (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
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Publication of EP1124734B1 publication Critical patent/EP1124734B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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 present invention relates to a closure device, comprising means for preventing complete separation of a container and the cap ensuring the closure of this container.
  • the device according to this document has the disadvantage that the cap 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 stopper annoys notably the flow of the product contained in the container and obliges the user to keep the plug in the tilting position during this flow.
  • this device is not very attractive, and the structure of this device could be improved with a view to optimal functioning.
  • the object of the invention is to provide a closure device. which overcomes all of these drawbacks.
  • This device must be able be placed on any type of container but in particular intended for containers for everyday use, produced in large series, such as bottles of mineral water, the device placement operation in front be able to be performed mechanically and at high speed.
  • the invention also aims to provide a device for easy to handle closure for opening and closing of the container, ensuring reliable retention of the cap on the container, little expensive to manufacture and install on the container and having a attractive visual appearance.
  • the device it relates to is of the type described above, the preamble of claim 1 corresponding to the teaching of the patent above cited.
  • the plug comprises shaped means to bear, during said tilting, against the container and to exert, by this support, a traction on said arms, this traction being non-existent or minimal in the engagement positions of the cap on the opening of the container and complete release of this plug beyond this opening, but being maximum in the position of the intermediate plug between these two positions.
  • Said means can be constituted by a tongue protruding axially from the skirt of the plug, close to said film hinge.
  • the edge of the tongue pressing against the container is advantageously rounded, to favor the rolling of this tongue the along the wall of the container.
  • the ring and / or at least one arm is, before the first opening of the container, connected to the cap and / or the film hinge by frangible bridges, intended to break during this first opening.
  • said means for the coming of the plug in engagement with the container are of screw type and the ring is mounted free in rotation on the container.
  • the cap includes two film hinges on each side with a tab as mentioned above, an arm being connected to each of these film hinges.
  • the figures represent a closure device 1 of 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.
  • the neck 2a of the container 2 comprises a flange 10, delimiting a conical surface upper, going widening towards the bottom of the container 2, and a shoulder at its lower part, consecutive to said reach.
  • This neck 2a also includes helical ribs 11 forming a thread to allow the opening and closing of the container 2 by screwing or unscrewing the cap 6.
  • the ring 3 includes internal tabs 12 connected to its lower part by thinned portions and projecting radially towards inside. These tabs 12 are intended, as shown in the Figures 3, 5, 6 and 7, to slide against said span during the first setting in place of the device 1 on the neck 2a, until it exceeds the end lower of this range, 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 thereto.
  • the arms 4 are, as shown more particularly the Figures 1 to 4 and 8, inscribed in the thickness of the ring 3 and individualized by recesses arranged in this thickness.
  • the ring 3 has, at the base of these arms 4, a portion 3a of height less than the height it presents in the other locations of its circumference. This lower height, combined with the aforementioned clearance, allows a some deformation of the ring 3 in the circumferential direction as well as this will be described later.
  • the ring 3 further comprises portions 3b of thickness augmented or studs 3c, to support the plug 6 and the arms 4 in case of significant charges exerted on the latter.
  • Each arm 4 has a circular arc shape and is connected, by parts 4a of thickness sufficiently reduced to be able to bend, on the plug 6 on the one hand, at one of the film hinges 5, and at 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 order of 45 to 50 degrees.
  • the arms 4 also have thick portions 4b increased, to also constitute support zones for the plug 6 in case of charge. These portions 4b are connected to the film hinges 5, by frangible bridges 15, intended to break when the first opening from container 2.
  • the film hinges 5 consist of walls of reduced thickness, triangular in shape, connected to the wall of the plug 6 on the one hand and arms 4 on the other.
  • the plug 6 comprises, meanwhile, a skirt 6a provided with helical ribs 20 complementary to those of the neck 2a.
  • This tongue 21 is connected to the film hinges 5 by two material bridges 22, allowing the cohesion of the whole and drawing a bending line.
  • the tongue 21 also includes an edge rounded outer lower, intended to rest and roll against neck wall 2a.
  • 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, a traction on the arms 4. This traction is nonexistent in the positions of engagement of the stopper 6 on the opening of the container 2 ( Figure 4) and 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.
  • the device 1 is placed on the container 2 by simple screwing, until the tongues 12 are locked beyond the shoulder of the flange 10.
  • the plug 6 gradually leaves its position axially close to the ring 3 (figure 2) until reaching the axially distant position of this ring 3 ( Figure 4), in which the helical ribs 11, 20 of the container 2 and plug 6 are out of grip.
  • the bridges 15 break during this movement and the arms 4 pass from their folding position shown in the Figure 2 in the unfolding position shown in Figures 4 and 8, by pivoting around the parts 4a.
  • This pivoting of the arms 4 is made possible by the extensibility elastic of the material constituting the device 1, by the deformation of the ring 3 made possible thanks to 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 tongue 21.
  • the plug 6, once in the position shown in FIG. 4, can be tilted to 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.
  • This tongue 21 allows the plug 6 to be "bi-stable" between the positions shown in Figures 4 and 8, which allows attractive handling of the device 1.
  • the invention thus provides a closure device allowing to overcome the drawbacks of homologous devices of the technique since it can be placed on any type of container, particularly containers for everyday use, produced in large series, such as mineral water bottles, the device placement operation 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 cap on the container, is inexpensive to manufacture and install on the container and has an attractive visual appearance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Closing Of Containers (AREA)
  • Refuse Collection And Transfer (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Fertilizing (AREA)
  • Seal Device For Vehicle (AREA)
  • Glass Compositions (AREA)

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

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.The present invention relates to a closure device, comprising means for preventing complete separation of a container and the cap ensuring the closure of this container.

Il est connu par le brevet US-A-5 215 204 de réaliser un dispositif de bouchage, comprenant

  • 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 ;
  • une bague engagée sur la partie du récipient délimitant ladite ouverture, et retenue axialement sur celle-ci, et
  • 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 pivotés 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.
It is known from US-A-5,215,204 to produce a closure device, comprising
  • 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, to be released from this opening so as to allow access to the interior of the container;
  • a ring engaged on the part of the container delimiting said opening, and retained axially thereon, and
  • two arms in the shape of an arc of a circle, each of which is connected to the stopper on the one hand, by means of a film hinge and 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 pivoted 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.

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. The device according to this document has the disadvantage that the cap 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 stopper annoys notably the flow of the product contained in the container and obliges the user to keep the plug in the tilting position during this flow.

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.In addition, the operation of this device is not very attractive, and the structure of this device could be improved with a view to optimal functioning.

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.The object of the invention is to provide a closure device. which overcomes all of these drawbacks. This device must be able be placed on any type of container but in particular intended for containers for everyday use, produced in large series, such as bottles of mineral water, the device placement operation in front be able to be performed mechanically and at high speed.

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.The invention also aims to provide a device for easy to handle closure for opening and closing of the container, ensuring reliable retention of the cap on the container, little expensive to manufacture and install on the container and having a attractive visual appearance.

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 device it relates to is of the type described above, the preamble of claim 1 corresponding to the teaching of the patent above cited.

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.According to the invention, the plug comprises shaped means to bear, during said tilting, against the container and to exert, by this support, a traction on said arms, this traction being non-existent or minimal in the engagement positions of the cap on the opening of the container and complete release of this plug beyond this opening, but being maximum in the position of the intermediate plug between these two 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".The aforementioned means, together with the possibility of stretching elastic made possible by the arms, thus create a point hard half-way tipping of the cap, so that the device is "Bi-stable".

Cette bi-stabilité permet de parfaitement maintenir le bouchon dans sa position de basculement, à l'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 stopper in its tilting position, against the elastic return of the synthetic material constituting the device; the user therefore does not have to keep the plug in the tilting position when the product contained in the container.

En outre, cette bi-stabilité confère au dispositif une manipulation attractive. In addition, this bi-stability gives the device a attractive handling.

Lesdits moyens peuvent être constitués par une languette faisant saillie axialement de la jupe du bouchon, à proximité de ladite charnière-film.Said means can be constituted by a tongue protruding axially from the skirt of the plug, close to 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 pressing against the container is advantageously rounded, to favor the rolling of this tongue the 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 :

  • un matériau constituant le dispositif de bouchage choisi parmi les matériaux, notamment le polyéthylène ou le polypropylène, qui présentent une possibilité d'étirement élastique ;
  • 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 ;
  • 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.
The means allowing a deformation of the device sufficient to allow the arms to pivot between said folding and unfolding positions can be constituted by one or more of the following means:
  • a material constituting the closure device chosen from materials, in particular polyethylene or polypropylene, which have a possibility of elastic stretching;
  • a clearance between the ring and the container, to allow, by the deformation of this ring, the relative displacement, in the circumferential direction, of the ends of the arms connected to this ring;
  • at least one slot or notch arranged at the level of 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 has in the other locations of its circumference, this lower height favoring 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.Preferably, the ring and / or at least one arm is, before the first opening of the container, connected to the cap and / or the film hinge by frangible bridges, intended to break during this first opening.

Ces ponts constituent non seulement des témoins d'inviolabilité du récipient mais permettent en outre de conférer une parfaite homogénéité de structure au dispositif.These bridges are not only witnesses to inviolability of the container but also provide a perfect homogeneity of structure 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. Advantageously, said means for the coming of the plug in engagement with the container are of screw type and the ring is mounted free in rotation on the container.

Le dévissage du bouchon provoque le déplacement précité des bras et, le cas échéant, la rupture des ponts constituant les témoins d'inviolabilité.Unscrewing the cap causes the aforementioned displacement of the arm and, if necessary, the rupture of the bridges constituting the witnesses inviolability.

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 cap includes two film hinges on each side with a tab 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 tongue allow stable movement of the arms and tilting stable of the cap 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.
    • 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;
  • FIGS. 6 and 7 are partial views thereof, in section respectively along lines VI-VI and VII-VII of FIG. 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.

    • 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.The figures represent a closure device 1 of 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 apparaít 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 surface upper, going widening towards the bottom of the container 2, and a shoulder at its lower part, consecutive to said reach.

    Ce goulot 2a comprend également des nervures hélicoïdales 11 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 11 forming a thread to allow the opening and closing of the container 2 by screwing or unscrewing the cap 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 includes internal tabs 12 connected to its lower part by thinned portions and projecting radially towards inside. These tabs 12 are intended, as shown in the Figures 3, 5, 6 and 7, to slide against said span during the first setting in place of the device 1 on the neck 2a, until it exceeds the end lower of this range, 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 thereto.

    Il existe un léger jeu entre la bague 3 et le goulot 2a.There is a slight clearance between the ring 3 and the neck 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.The arms 4 are, as shown more particularly the Figures 1 to 4 and 8, inscribed in the thickness of the ring 3 and individualized by recesses arranged in this thickness. As a result, the ring 3 has, at the base of these arms 4, a portion 3a of height less than the height it presents in the other locations of its circumference. This lower height, combined with the aforementioned clearance, allows a some deformation of the ring 3 in the circumferential direction as well as this 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 thickness augmented or studs 3c, to support the plug 6 and the arms 4 in case of significant charges 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.Each arm 4 has a circular arc shape and is connected, by parts 4a of thickness sufficiently reduced to be able to bend, on the plug 6 on the one hand, at one of the film hinges 5, and at the ring 3 on the other hand.

    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 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 order of 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 thick portions 4b increased, to also constitute support zones for the plug 6 in case of charge. These portions 4b are connected to the film hinges 5, by frangible bridges 15, intended to break when the first opening from container 2.

    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 consist of walls of reduced thickness, triangular in shape, connected to the wall of the plug 6 on the one hand and arms 4 on the other.

    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.The flexibility allowing tilting of the plug 6 shown at Figure 8 is obtained by this triangular shape and by the arrangement in the plug 6 of material webs 16 having a limited thickness, as well as slots 17.

    Le bouchon 6 comprend, quant à lui, une jupe 6a pourvue de nervures hélicoïdales 20 complémentaires de celles du goulot 2a.The plug 6 comprises, meanwhile, 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 axially projecting of this skirt 6a, between the two film hinges 5.

    Il apparaít 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 Figures 2 and 4 that they 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 material bridges 22, allowing the cohesion of the whole and drawing a bending line. The tongue 21 also includes an edge rounded outer lower, intended to rest and roll against neck wall 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, a traction on the arms 4. This traction is nonexistent in the positions of engagement of the stopper 6 on the opening of the container 2 (Figure 4) and 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 de l'épaulement de la collerette 10. Lors du premier dévissage, le bouchon 6 quitte progressivement sa position axialement proche de la bague 3 (figure 2) jusqu'à atteindre la position axialement éloignée de cette bague 3 (figure 4), dans laquelle les nervures hélicoïdales 11, 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.In practice, the device 1 is placed on the container 2 by simple screwing, until the tongues 12 are locked beyond the shoulder of the flange 10. During the first unscrewing, the plug 6 gradually leaves its position axially close to the ring 3 (figure 2) until reaching the axially distant position of this ring 3 (Figure 4), in which the helical ribs 11, 20 of the container 2 and plug 6 are out of grip. The bridges 15 break during this movement and the arms 4 pass from their folding position shown in the Figure 2 in the unfolding position shown in Figures 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 extensibility elastic of the material constituting the device 1, by the deformation of the ring 3 made possible thanks to 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 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 FIG. 4, can be tilted to 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 Figures 4 and 8, which allows attractive handling 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 allowing to overcome the drawbacks of homologous devices of the technique since it can be placed on any type of container, particularly containers for everyday use, produced in large series, such as mineral water bottles, the device placement operation 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 cap on the container, is inexpensive to manufacture and install on the container and has an attractive visual appearance.

    Claims (9)

    1. Capping device comprising
      a cap (6), the lateral skirt (6a) of which is equipped with means (20) for its engagement with a container (2), it being possible for this cap (6), in one position, to be placed over the opening of the container (2) so as to close this container (2) and, in another position, to be released from this opening so as to allow access to the inside of the container (2);
      a ring (3) engaged on that part of the container (2) which delimits the said opening and held axially on it; and
      two arms (4) in the form of an arc of a circle, each one of which is connected to the cap (6) on the one hand, by means of a film hinge (5) and parts (4a) that are able to fold, and to the ring (3) on the other hand, the arms (4) being connected to the ring (3) at locations which are angularly distant with respect to the film hinge (5); the said parts that are able to fold allow the pivoting of the arms (4) between a folded position, in which these arms (4) are placed close to the ring (3) and in which the cap (6) is axially close to the ring (3), and an unfolded position, in which these arms (4) are pivoted with respect to the film hinge (5) and to the ring (3) and, by means of their length, allow the cap (6) to be brought into a position which is axially remote from the ring (3), this position being sufficient to make it possible to release the said means (11, 20) for engaging the cap (6) with the container (2) and to tilt the said cap (6) outwards with respect to this container (2) so as to bring (3) this cap (6) into the position in which it is released from the opening of the container (2);
         device characterized in that the cap (6) comprises means (21) shaped so as to bear, during the said tilting, against the container (2) and in order to exert, by means of this bearing, a pulling on the said arms (4), this pulling being non-existent or minimal in the positions of engagement of the cap (6) over the opening of the container (2) and of total release of this cap (6) from this opening, but being maximal in the intermediate position of the cap (6) between these two positions.
    2. Device according to Claim 1, characterized in that the said means consist of a tongue (21) projecting axially from the skirt (6a) of the cap (6), close to the said film hinge (5).
    3. Device according to Claim 2, characterized in that the edge of the tongue (21) bearing against the container (2) is rounded.
    4. Device according to one of Claims 1 to 3, characterized in that the means allowing its sufficient deformation to allow pivoting of the arms (4) between the said folded and unfolded positions consist of one or more of the following means:
      a material constituting the capping device (1), chosen from materials, particularly polyethylene or polypropylene, which offer a possibility of elastic expansion ;
      a clearance between the ring (3) and the container (2) in order to allow, through 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 slit (17) or one notch made at the level of the film hinge (5) to allow the relative displacement, in the circumferential direction, of the ends of the arms (4) connected to this film hinge (5) ;
      arms (4) included, in the folded position, in the thickness of the ring (3) and separated by recesses made in this thickness so that the ring (3) has, plumb with the arms (4), a height which is less than the height it has in the other locations on its circumference.
    5. Device according to one of Claims 1 to 4, characterized in that the ring (3) and/or at least one arm (4) is, before the first opening of the container (2), connected to the cap (6) and/or to the film hinge (5) by breakable bridges (15) which are intended to be broken at the time of this first opening.
    6. Device according to one of Claims 1 to 5, characterized in that the said means for the engagement of the cap (6) with the container (2) are of the screw type and in that the ring (3) is fitted free in rotation on the container (2).
    7. Device according to one of Claims 2 to 6, characterized in that the cap (6) comprises two film hinges (5) made on either side of a tongue as aforesaid, each of the arms (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 with respect 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 end, on the side opposite this edge of the tongue, in a side parallel to this same edge.
    9. Device according to Claim 8, characterized in that the tongue (21) is connected to the film hinges (5) by two bridges (22) of material.
    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
    FR9813759 1998-10-29
    FR9813759A FR2785264B1 (en) 1998-10-29 1998-10-29 CAPPING DEVICE
    PCT/FR1999/002642 WO2000026108A1 (en) 1998-10-29 1999-10-28 Screw top with tearaway strip

    Publications (2)

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

    Family

    ID=9532279

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99950874A Expired - Lifetime EP1124734B1 (en) 1998-10-29 1999-10-28 Screw top with tearaway strip

    Country Status (10)

    Country Link
    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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    EP4282774A2 (en) 2019-11-29 2023-11-29 SIG Combibloc Services AG Reclosable pour element for cardboard/plastic composite packaging with an anchor ring for securely attaching a screw cap
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    DE202021103289U1 (en) 2021-06-03 2021-07-09 Sig Technology Ag Closure for a container with better controlled initial opening and various uses for it
    EP4098574A1 (en) 2021-06-03 2022-12-07 SIG Combibloc Services AG Closure for a container with a controlled initial opening
    WO2022253752A1 (en) 2021-06-03 2022-12-08 Sig Combibloc Services Ag Closure for a container with an improved indication of whether the closure has already been opened, and different applications for said closure

    Also Published As

    Publication number Publication date
    AU6347899A (en) 2000-05-22
    FR2785264B1 (en) 2001-01-05
    WO2000026108A1 (en) 2000-05-11
    EP1124734A1 (en) 2001-08-22
    ES2178482T3 (en) 2002-12-16
    DE69902186D1 (en) 2002-08-22
    FR2785264A1 (en) 2000-05-05
    US6474491B1 (en) 2002-11-05
    DE69902186T2 (en) 2003-04-03
    ATE220633T1 (en) 2002-08-15
    MXPA01004170A (en) 2002-04-24
    BR9914851A (en) 2001-07-03

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