EP0541466A1 - Plastic screw cap with anti tamper band - Google Patents

Plastic screw cap with anti tamper band Download PDF

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Publication number
EP0541466A1
EP0541466A1 EP92420398A EP92420398A EP0541466A1 EP 0541466 A1 EP0541466 A1 EP 0541466A1 EP 92420398 A EP92420398 A EP 92420398A EP 92420398 A EP92420398 A EP 92420398A EP 0541466 A1 EP0541466 A1 EP 0541466A1
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EP
European Patent Office
Prior art keywords
ring
plug
tongue
tamper
skylight
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
EP92420398A
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German (de)
French (fr)
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EP0541466B1 (en
Inventor
Philippe Odet
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.)
Astra Plastique SA
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Astra Plastique SA
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Publication date
Application filed by Astra Plastique SA filed Critical Astra Plastique SA
Publication of EP0541466A1 publication Critical patent/EP0541466A1/en
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Publication of EP0541466B1 publication Critical patent/EP0541466B1/en
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    • 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
    • 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

Definitions

  • the present invention relates to a screw cap, made of synthetic material, fitted with a tamper-evident ring.
  • This stopper is of the type comprising an internally threaded belt, closed by a bottom, intended to be screwed onto the neck of a container itself provided with a thread.
  • the cap comes from molding with a tamper-evident ring to which it is connected by a number of breakable bridges.
  • This tamper-evident ring has inward-facing parts intended to come to bear below a bead or "counter ring” that comprises the neck of the container to be fitted. Therefore, when unscrewing the cap, the ring being retained by the bead or "counter ring", is blocked axially, which results in the rupture of the bridges and the separation of the cap and the ring, the latter remaining on the container neck after first opening the cap.
  • French patent 2,525,565 describes a plug of this type, in which the tamper-evident ring is extended, on the side of its free end, by a number of tabs, regularly distributed over its periphery, each tab being intended to be folded on the inner face of the ring, and comprising a projecting part, facing inward, intended to come to bear under the "counter ring" of the neck of the container.
  • Such a device has the drawback of a certain fragility of the tongues, and also, due to the shape of these, of retention of the tamper-evident ring in contact with the "counter ring", after separation of the cap. and the ring. This phenomenon results in particular from the elastic memory of the material constituting the stopper and the ring.
  • each tongue extending the tamper-evident ring has a constant section, and comprises a first curved part connected to the bottom of the ring, extended by a second. rectilinear part, the connection zone between these two parts forming a shoulder intended to come to bear under the "counter ring" of the neck of the container.
  • the object of the invention is to provide a closure device of this type, in which the ring is capable of being perfectly retained behind the "counter-ring" of the neck of the container, and in which the ring, after separation from the body of the cap, is capable of sliding along the neck of the container to allow immediate viewing of the first opening of the container.
  • the stopper it relates to, of the type comprising an internally threaded belt, the free end of which is connected, by breakable bridges, to a tamper-evident ring itself extended, at its free end, by a plurality of articulated tabs regularly distributed, folded against the inner face of the ring in the position of use of the stopper, and each comprising a surface intended to come to bear under a bead or "counter ring" that comprises the neck of the container to be equipped, is characterized in what the tamper-evident ring comprises, at least opposite certain tongues, and in its zone extending near the bridges connecting with the skirt, skylights each of which serves for the passage of one end a tongue, the latter having a flange intended to bear against the edge of the window located on the side of the ring opposite its end for fixing to the plug.
  • each tab comprises from its end for connection to the stopper towards its other end, and in the position of use, a first part oriented substantially parallel to the tamper-evident ring, inside the latter, a second part inclined from the inside to the outside and comprising on one of its faces a bearing surface against the "counter ring" of the neck of the container and on its other face a bearing rim against an edge of a window formed in the ring, and a third part having substantially the orientation of the ring and intended to be housed in a window of the latter.
  • each tongue is made in three parts having the general shape of a Z, the intermediate part serving, on the one hand, to support against the "contrabague" and, on the other hand, pressing against one of the edges of a skylight formed in the ring.
  • the zones of the ring comprising dormers are formed alternately with the zones comprising bridges connecting with the plug.
  • this plug comprises means for locking the end of each tab associated with a skylight inside the latter.
  • the means for locking the end of each tongue in a skylight are produced by corresponding dimensions of the end of the tongue and of the skylight allowing a force fitting of one into the other.
  • the means for locking the end of each tongue in a skylight consist of a spout formed at the outer end of the support flange of the tongue on an edge of the skylight.
  • each spout associated with a tongue comes to bear on the outer face of the ring, after the end of the tongue in question has been placed in the corresponding skylight.
  • the closure device shown in FIG. 1 comprises a plug 2 and a tamper-evident ring 3 coming from molding in one piece.
  • the plug 2 comprises, in a manner known per se, a bottom 4 extended by a belt 5 having an internal thread 6.
  • a skirt 4a ensuring the sealing of the plug protrudes from the bottom of the plug.
  • the plug 2 is connected, at the open end of its belt, by a plurality of bridges 7, regularly distributed over its periphery, to the tamper-evident ring 3. These bridges are breakable under the effect of a certain constraint.
  • This closure device is intended to equip a container, the neck of which is shown in FIGS. 3 and 4, which comprises an external thread 8, as well as a bead or "counter ring" 9 arranged below the thread.
  • the tamper-evident ring 3 is extended by several tabs 10 regularly distributed.
  • the connection between the ring and each tongue is produced by a thinned area of material 12 forming a film hinge, allowing the tongue to be folded inwards.
  • Each tongue 10 comprises, in the embodiment shown in the drawing, and from its connection zone 12 with the ring, towards its other end, a first part 13 which, in the use position, shown in FIGS.
  • the flange 16 of each tongue is equipped, at its end located towards the outside, with a beak 18 projecting downwards.
  • the tamper-evident ring 3 has, in its zones alternating with the bridges 7, and extending from its edge adjacent to the body of the plug 2, a number of skylights 19, the dimensions of each skylight 19 being sufficient to be used for engaging therein the end 17 of a tongue 10.
  • one tongue out of two is intended to be associated with a skylight 19.
  • the invention brings a great improvement to the existing technique, by providing a screw cap made of synthetic material, equipped with a tamper-evident ring, of simple structure, offering complete safety concerning its operation, and allowing a safe visualization of the first opening of the container.

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

Abstract

Cap of the type comprising an internally threaded belt (5), whose free end is connected, through breakable bars (7) to an anti-tamper ring (3), itself extended at its free end by a plurality of jointed tabs (10), which are evenly distributed, folded against the lower face of the ring in the used position of the cap, and each comprise a surface intended to bear against a bead or "backing ring" (9) on the neck of the receptacle to be equipped. According to the invention, the anti-tamper ring (3) comprises, at least opposite some tabs (10), and in its zone extending from near the bars for connection with the belt, holes (19), each used for the passage of one end (17) of a tab, the latter comprising a rim (16) intended to bear against the edge (20) of the hole (19) situated on the side of the ring opposite its end for attachment to the cap. <IMAGE>

Description

La présente invention a pour objet un bouchon à vis, en matière synthétique, équipé d'une bague d'inviolabilité.The present invention relates to a screw cap, made of synthetic material, fitted with a tamper-evident ring.

Ce bouchon est du type comportant une ceinture filetée intérieurement, obturée par un fond, destinée à être vissé sur le col d'un récipient lui-même muni d'un filetage. Le bouchon vient de moulage avec une bague d'inviolabilité à laquelle il est relié par un certain nombre de pontets ruptibles. Cette bague d'inviolabilité comporte des parties tournées vers l'intérieur destinées à venir prendre appui en-dessous d'un bourrelet ou "contrebague" que comporte le col du récipient à équiper. De ce fait, lors du dévissage du bouchon, la bague étant retenue par le bourrelet ou "contrebague", est bloquée axialement, ce qui se traduit par la rupture des pontets et la désolidarisation du bouchon et de la bague, cette dernière demeurant sur le col du récipient après première ouverture du bouchon.This stopper is of the type comprising an internally threaded belt, closed by a bottom, intended to be screwed onto the neck of a container itself provided with a thread. The cap comes from molding with a tamper-evident ring to which it is connected by a number of breakable bridges. This tamper-evident ring has inward-facing parts intended to come to bear below a bead or "counter ring" that comprises the neck of the container to be fitted. Therefore, when unscrewing the cap, the ring being retained by the bead or "counter ring", is blocked axially, which results in the rupture of the bridges and the separation of the cap and the ring, the latter remaining on the container neck after first opening the cap.

Le brevet français 2 525 565 décrit un bouchon de ce type, dans lequel la bague d'inviolabilité est prolongée, du côté de son extrémité libre, par un certain nombre de languettes, régulièrement réparties sur sa périphérie, chaque languette étant destinée à être repliée sur la face intérieure de la bague, et comportant une partie en saillie, tournée vers l'intérieur, destinée à venir prendre appui sous la "contrebague" du col du récipient.French patent 2,525,565 describes a plug of this type, in which the tamper-evident ring is extended, on the side of its free end, by a number of tabs, regularly distributed over its periphery, each tab being intended to be folded on the inner face of the ring, and comprising a projecting part, facing inward, intended to come to bear under the "counter ring" of the neck of the container.

Un tel dispositif présente l'inconvénient d'une certaine fragilité des languettes, et également, du fait de la forme de celles-ci, d'une rétention de la bague d'inviolabilité au contact de la "contrebague", après séparation du bouchon et de la bague. Ce phénomène résulte notamment de la mémoire élastique de la matière constitutive du bouchon et de la bague.Such a device has the drawback of a certain fragility of the tongues, and also, due to the shape of these, of retention of the tamper-evident ring in contact with the "counter ring", after separation of the cap. and the ring. This phenomenon results in particular from the elastic memory of the material constituting the stopper and the ring.

Le brevet français 2 655 620 au nom de la Demanderesse décrit un bouchon de même type, dans lequel chaque languette prolongeant la bague d'inviolabilité possède une section constante, et comporte une première partie courbe reliée au bas de la bague, prolongée par une seconde partie rectiligne, la zone de raccordement entre ces deux parties formant un épaulement destiné à venir prendre appui sous la "contrebague" du col du récipient. Si cette solution donne satisfaction dans la mesure où le bouchon et la bague sont réalisés en une matière relativement souple, il existe le risque, lorsqu'un matériau plus dur est mis en oeuvre, de voir, lors du premier débouchage du récipient, les languettes se "dérouler" sans assurer un blocage axial de la bague derrière la "contrebague".French patent 2,655,620 in the name of the Applicant describes a plug of the same type, in which each tongue extending the tamper-evident ring has a constant section, and comprises a first curved part connected to the bottom of the ring, extended by a second. rectilinear part, the connection zone between these two parts forming a shoulder intended to come to bear under the "counter ring" of the neck of the container. If this solution is satisfactory insofar as the stopper and the ring are made of a relatively flexible material, there is the risk, when a harder material is used, of seeing, during the first opening of the container, the tongues "unwind" without ensuring an axial blocking of the ring behind the "counter ring".

Le but de l'invention est de fournir un dispositif de bouchage de ce type, dans lequel la bague soit susceptible d'être parfaitement retenue derrière la "contrebague" du col du récipient, et dans lequel la bague, après séparation avec le corps du bouchon, soit susceptible de glisser le long du col du récipient afin de permettre une visualisation immédiate de la première ouverture du récipient.The object of the invention is to provide a closure device of this type, in which the ring is capable of being perfectly retained behind the "counter-ring" of the neck of the container, and in which the ring, after separation from the body of the cap, is capable of sliding along the neck of the container to allow immediate viewing of the first opening of the container.

A cet effet, le bouchon qu'elle concerne, du type comportant une ceinture filetée intérieurement dont l'extrémité libre est reliée, par des pontets ruptibles à une bague d'inviolabilité elle-même prolongée, à son extrémité libre, par une pluralité de languettes articulées régulièrement réparties, repliées contre la face intérieure de la bague en position d'utilisation du bouchon, et comportant chacune une surface destinée à venir prendre appui sous un bourrelet ou "contrebague" que comporte le col du récipient à équiper, est caractérisé en ce que la bague d'inviolabilité comporte, au moins en regard de certaines languettes, et dans sa zone s'étendant à proximité des pontets de liaison avec la jupe, des lucarnes dont chacune sert au passage d'une extrémité d'une languette, cette dernière comportant un rebord destiné à prendre appui contre le bord de la lucarne situé du côté de la bague opposé à son extrémité de fixation au bouchon.To this end, the stopper it relates to, of the type comprising an internally threaded belt, the free end of which is connected, by breakable bridges, to a tamper-evident ring itself extended, at its free end, by a plurality of articulated tabs regularly distributed, folded against the inner face of the ring in the position of use of the stopper, and each comprising a surface intended to come to bear under a bead or "counter ring" that comprises the neck of the container to be equipped, is characterized in what the tamper-evident ring comprises, at least opposite certain tongues, and in its zone extending near the bridges connecting with the skirt, skylights each of which serves for the passage of one end a tongue, the latter having a flange intended to bear against the edge of the window located on the side of the ring opposite its end for fixing to the plug.

Dans ces conditions, lors de la mise en place d'un bouchon sur le col du récipient à équiper, les languettes dont les extrémités prennent appui derrière la "contrebague" du col du récipient, tendent à basculer vers l'extérieur, de telle sorte que les extrémités de celles-ci situées en regard de lucarnes que comportent la bague, pénètrent dans ces dernières. De ce fait, les extrémités de ces languettes sont verrouillées dans les lucarnes, de telle sorte que plus la contrainte exercée par la "contrebague" sur une languette est importante, lors du dévissage du bouchon, moins existe le risque de voir cette languette se "dérouler", c'est-à-dire se déformer en revenant dans le prolongement de la bague, sans assurer la fonction de rétention de cette dernière vis-à-vis de la "contrebague" du col du récipient.Under these conditions, when a stopper is placed on the neck of the container to be fitted, the tabs, the ends of which rest behind the "neck" of the neck of the container, tend to tilt outwards, so that that the ends of the latter situated opposite the dormer windows which the ring comprises, penetrate into the latter. As a result, the ends of these tabs are locked in the dormers, so that the greater the stress exerted by the "counter ring" on a tab, when the cap is unscrewed, the less the risk of seeing this tab " unroll ", that is to say deform by returning in the extension of the ring, without ensuring the retention function of the latter vis-à-vis the" counter ring "of the container neck.

Selon une forme avantageuse de réalisation de ce bouchon, chaque languette comporte depuis son extrémité de raccordement au bouchon vers son autre extrémité, et en position d'utilisation, une première partie orientée sensiblement parallèlement à la bague d'inviolabilité, à l'intérieur de celle-ci, une seconde partie inclinée de l'intérieur vers l'extérieur et comportant sur l'une de ses faces une surface d'appui contre la "contrebague" du col du récipient et sur son autre face un rebord d'appui contre un bord d'une lucarne ménagée dans la bague, et une troisième partie ayant sensiblement l'orientation de la bague et destinée à être logée dans une lucarne de cette dernière.According to an advantageous embodiment of this stopper, each tab comprises from its end for connection to the stopper towards its other end, and in the position of use, a first part oriented substantially parallel to the tamper-evident ring, inside the latter, a second part inclined from the inside to the outside and comprising on one of its faces a bearing surface against the "counter ring" of the neck of the container and on its other face a bearing rim against an edge of a window formed in the ring, and a third part having substantially the orientation of the ring and intended to be housed in a window of the latter.

De façon schématique, chaque languette est réalisée en trois parties possédant la forme générale d'un Z, la partie intermédiaire servant, d'une part, à l'appui contre la "contrebague" et, d'autre part, à l'appui contre l'un des bords d'une lucarne ménagée dans la bague.Schematically, each tongue is made in three parts having the general shape of a Z, the intermediate part serving, on the one hand, to support against the "contrabague" and, on the other hand, pressing against one of the edges of a skylight formed in the ring.

Selon une autre caractéristique de l'invention, les zones de la bague comportant des lucarnes sont ménagées de façon alternée avec les zones comportant des pontets de liaison avec le bouchon.According to another characteristic of the invention, the zones of the ring comprising dormers are formed alternately with the zones comprising bridges connecting with the plug.

En outre, avantageusement, ce bouchon comporte des moyens de verrouillage de l'extrémité de chaque languette associée à une lucarne à l'intérieur de cette dernière.In addition, advantageously, this plug comprises means for locking the end of each tab associated with a skylight inside the latter.

Il est, en effet, très intéressant de maintenir la languette au contact de la bague, après désolidarisation de cette dernière et du corps du bouchon, afin d'éviter que les languettes viennent, sous l'effet de leur élasticité, enserrer le col du récipient, empêchant ainsi le glissement de la bague le long du col du récipient, et gênant par là même la visualisation de la première ouverture du récipient.It is, in fact, very advantageous to keep the tongue in contact with the ring, after detachment of the latter and of the body of the stopper, in order to avoid that the tongues come, under the effect of their elasticity, to grip the neck of the container, thus preventing the sliding of the ring along the neck of the container, and thereby hampering the visualization of the first opening of the container.

Selon une première possibilité, les moyens de verrouillage de l'extrémité de chaque languette dans une lucarne sont réalisés par des dimensionnements correspondants de l'extrémité de la languette et de la lucarne permettant un emboîtement en force de l'une dans l'autre.According to a first possibility, the means for locking the end of each tongue in a skylight are produced by corresponding dimensions of the end of the tongue and of the skylight allowing a force fitting of one into the other.

Selon une autre possibilité, les moyens de verrouillage de l'extrémité de chaque languette dans une lucarne sont constitués par un bec ménagé à l'extrémité extérieure du rebord d'appui de la languette sur un bord de la lucarne .According to another possibility, the means for locking the end of each tongue in a skylight consist of a spout formed at the outer end of the support flange of the tongue on an edge of the skylight.

Lors de la mise en place du bouchon sur le col du récipient, chaque bec associé à une languette vient prendre appui sur la face extérieure de la bague, après mise en place de l'extrémité de la languette considérée dans la lucarne correspondante.When the stopper is placed on the neck of the container, each spout associated with a tongue comes to bear on the outer face of the ring, after the end of the tongue in question has been placed in the corresponding skylight.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution de ce bouchon :

  • Figure 1 en est une vue en perspective, avant mise en place sur le col d'un récipient ;
  • Figure 2 en est une vue en coupe longitudinale et à échelle agrandie selon la ligne II-II de figure 1 ;
  • Figures 3 et 4 sont deux vues de ce même bouchon, respectivement après mise en place sur le col du récipient à équiper, et au cours de la première ouverture.
In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the drawing schematic appended representing, by way of nonlimiting example, an embodiment of this plug:
  • Figure 1 is a perspective view, before placement on the neck of a container;
  • Figure 2 is a longitudinal sectional view on an enlarged scale along the line II-II of Figure 1;
  • Figures 3 and 4 are two views of the same plug, respectively after installation on the neck of the container to be fitted, and during the first opening.

Le dispositif de bouchage représenté à la figure 1 comprend un bouchon 2 et une bague d'inviolabilité 3 venant de moulage en une seule pièce.The closure device shown in FIG. 1 comprises a plug 2 and a tamper-evident ring 3 coming from molding in one piece.

Le bouchon 2 comporte, de façon connue en soi, un fond 4 prolongé par une ceinture 5 présentant un filetage intérieur 6. Une jupe 4a assurant l'étanchéité du bouchage fait saillie du fond du bouchon. Le bouchon 2 est relié, à l'extrémité ouverte de sa ceinture, par une pluralité de pontets 7, régulièrement répartis sur sa périphérie, à la bague d'inviolabilité 3. Ces pontets sont ruptibles sous l'effet d'une certaine contrainte. Ce dispositif de bouchage est destiné à équiper un récipient dont le col est représenté aux figures 3 et 4, qui comporte un filet extérieur 8, ainsi qu'un bourrelet ou "contrebague" 9 disposé en-dessous du filet.The plug 2 comprises, in a manner known per se, a bottom 4 extended by a belt 5 having an internal thread 6. A skirt 4a ensuring the sealing of the plug protrudes from the bottom of the plug. The plug 2 is connected, at the open end of its belt, by a plurality of bridges 7, regularly distributed over its periphery, to the tamper-evident ring 3. These bridges are breakable under the effect of a certain constraint. This closure device is intended to equip a container, the neck of which is shown in FIGS. 3 and 4, which comprises an external thread 8, as well as a bead or "counter ring" 9 arranged below the thread.

La bague d'inviolabilité 3 est prolongée par plusieurs languettes 10 régulièrement réparties. La liaison entre la bague et chaque languette est réalisée par une zone amincie de matière 12 formant une charnière-film, permettant le pliage de la languette vers l'intérieur. Chaque languette 10 comprend, dans la forme d'exécution représentée au dessin, et à partir de sa zone de liaison 12 avec la bague, vers son autre extrémité, une première partie 13 qui, en position d'utilisation, représentée aux figures 3 et 4, est rabattue contre la paroi intérieure de la bague, une seconde partie 14 formant sensiblement un angle droit avec la partie 13, orientée radialement de l'intérieur vers l'extérieur, et formant un épaulement 15 sur son côté extérieur et un rebord 16 sur son côté extérieur, et une troisième partie 17, formant sensiblement un angle droit avec la seconde partie 14, possédant, en condition d'utilisation, sensiblement la même orientation que la bague.The tamper-evident ring 3 is extended by several tabs 10 regularly distributed. The connection between the ring and each tongue is produced by a thinned area of material 12 forming a film hinge, allowing the tongue to be folded inwards. Each tongue 10 comprises, in the embodiment shown in the drawing, and from its connection zone 12 with the ring, towards its other end, a first part 13 which, in the use position, shown in FIGS. 3 and 4, is folded against the inner wall of the ring, a second part 14 forming substantially a right angle with the part 13, oriented radially inside towards the outside, and forming a shoulder 15 on its outside side and a flange 16 on its outside side, and a third part 17, forming substantially a right angle with the second part 14, having, in condition of use , substantially the same orientation as the ring.

Comme montré au dessin, le rebord 16 de chaque languette est équipé, à son extrémité située vers l'extérieur, d'un bec 18 faisant saillie vers le bas.As shown in the drawing, the flange 16 of each tongue is equipped, at its end located towards the outside, with a beak 18 projecting downwards.

Comme montré au dessin, la bague d'inviolabilité 3 présente, dans ses zones alternées avec les pontets 7, et s'étendant à partir de son bord adjacent au corps du bouchon 2, un certain nombre de lucarnes 19, les dimensions de chaque lucarne 19 étant suffisantes pour servir à l'engagement dans celle-ci de l'extrémité 17 d'une languette 10.As shown in the drawing, the tamper-evident ring 3 has, in its zones alternating with the bridges 7, and extending from its edge adjacent to the body of the plug 2, a number of skylights 19, the dimensions of each skylight 19 being sufficient to be used for engaging therein the end 17 of a tongue 10.

Dans la forme d'exécution représentée au dessin, une languette sur deux est destinée à être associée à une lucarne 19.In the embodiment shown in the drawing, one tongue out of two is intended to be associated with a skylight 19.

En pratique, lors de la mise en place du bouchon sur le col du récipient, la partie 17 de chaque languette 10 associée à une lucarne 19, est engagée dans cette lucarne 19, le rebord 16 de la languette venant prendre appui contre le bord inférieur 20 de cette lucarne, et le bec 18 assurant le verrouillage de la languette dans cette position.In practice, during the fitting of the stopper on the neck of the container, the part 17 of each tongue 10 associated with a skylight 19, is engaged in this skylight 19, the flange 16 of the tongue coming to bear against the lower edge 20 of this skylight, and the spout 18 ensuring the locking of the tongue in this position.

En conséquence, lors du dévissage du bouchon, il n'y a pas de risques de voir les languettes se déformer vers l'intérieur pour revenir dans le prolongement de la bague d'inviolabilité. En outre, et comme montré à la figure 4, après désolidarisation de la bague 3 et du bouchon 2 par rupture des pontets 7, les languettes 10 demeurent en position écartée du col du récipient, grâce au verrouillage des becs 18 derrière les bords respectifs inférieurs 20 des lucarnes. Cela assure un parfait glissement de la bague d'inviolabilité le long du col du récipient, dégageant parfaitement la "contrebague" 9, permettant ainsi une visualisation immédiate d'une première ouverture du récipient, même si le bouchon 2 a été remis en place.Consequently, when the cap is unscrewed, there is no risk of the tongues deforming inwardly to return in the extension of the tamper-evident ring. In addition, and as shown in FIG. 4, after the ring 3 and the plug 2 have been detached by breaking the bridges 7, the tongues 10 remain in the position away from the neck of the container, by locking the nozzles 18 behind the respective lower edges 20 of the dormers. This ensures perfect sliding of the tamper-evident ring along the neck of the container, perfectly releasing the "counter ring" 9, thus allowing immediate visualization of a first opening of the container, even if the cap 2 has been replaced.

Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante, en fournissant un bouchon à vis en matière synthétique, équipé d'une bague d'inviolabilité, de structure simple, offrant toute sécurité concernant son fonctionnement, et permettant une visualisation sûre de la première ouverture du récipient.As is apparent from the above, the invention brings a great improvement to the existing technique, by providing a screw cap made of synthetic material, equipped with a tamper-evident ring, of simple structure, offering complete safety concerning its operation, and allowing a safe visualization of the first opening of the container.

Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution de ce bouchon décrite ci-dessus à titre d'exemple, elle en embrasse au contraire toutes les variantes de réalisation.As it goes without saying, the invention is not limited to the sole embodiment of this plug described above by way of example, on the contrary it embraces all the variant embodiments thereof.

C'est ainsi notamment que la forme des languettes pourrait être différente de celle indiquée précédemment, ou encore que le nombre des lucarnes pourrait être différent sans que l'on sorte pour autant du cadre de l'invention.Thus in particular that the shape of the tabs could be different from that indicated above, or that the number of dormers could be different without departing from the scope of the invention.

Claims (6)

Bouchon à vis, en matière synthétique, équipé d'une bague d'inviolabilité, du type comportant une ceinture (5) filetée intérieurement dont l'extrémité libre est reliée, par des pontets ruptibles (7) à une bague d'inviolabilité (3) elle-même prolongée à son extrémité libre, par une pluralité de languettes articulées (10) régulièrement réparties, repliées contre la face intérieure de la bague en position d'utilisation du bouchon, et comportant chacune une surface destinée à venir prendre appui sous un bourrelet ou "contrebague" (9) que comporte le col du récipient à équiper, caractérisé en ce que la bague d'inviolabilité (3) comporte, au moins en regard de certaines languettes (10), et dans sa zone s'étendant à proximité des pontets de liaison avec la ceinture, des lucarnes (19) dont chacune sert au passage d'une extrémité (17) d'une languette, cette dernière comportant un rebord (16) destiné à prendre appui contre le bord (20) de la lucarne (19) situé du côté de la bague opposé à son extrémité de fixation au bouchon.Screw cap, of synthetic material, fitted with a tamper-evident ring, of the type comprising a belt (5) internally threaded, the free end of which is connected, by ruptible bridges (7), to a tamper-evident ring (3 ) itself extended at its free end, by a plurality of articulated tongues (10) regularly distributed, folded against the inner face of the ring in the position of use of the plug, and each comprising a surface intended to come to bear under a bead or "counter ring" (9) which comprises the neck of the container to be fitted, characterized in that the tamper-evident ring (3) comprises, at least opposite certain tongues (10), and in its zone extending to proximity of the bridges connecting with the belt, of the dormers (19) each of which is used for the passage of one end (17) of a tongue, the latter comprising a flange (16) intended to bear against the edge (20) of the skylight (19) located on the side of the ring opposite its end for fixing to the plug. Bouchon selon la revendication 1, caractérisé en ce que chaque languette (10) comporte, depuis son extrémité de raccordement (12) au bouchon vers son autre extrémité, et en position d'utilisation, une première partie (13) orientée sensiblement parallèlement à la bague d'inviolabilité (3), à l'intérieur de celle-ci, une seconde partie (14) inclinée de l'intérieur vers l'extérieur et comportant sur l'une de ses faces une surface d'appui (15) sous la "contrebague" du col du récipient et sur son autre face un rebord d'appui (16) contre un bord (20) d'une lucarne (19) ménagée dans la bague, et une troisième partie (17) ayant sensiblement l'orientation de la bague et destinée à être logée dans une lucarne (19) de cette dernière.Plug according to claim 1, characterized in that each tongue (10) comprises, from its connection end (12) to the plug towards its other end, and in the position of use, a first part (13) oriented substantially parallel to the tamper-evident ring (3), inside thereof, a second part (14) inclined from the inside towards the outside and comprising on one of its faces a bearing surface (15) under the "counter-ring" of the container neck and on its other face a support rim (16) against an edge (20) of a skylight (19) formed in the ring, and a third part (17) having substantially the orientation of the ring and intended to be housed in a skylight (19) of the latter. Bouchon selon l'une quelconque des revendications 1 et 2, caractérisé en ce que les zones de la bague (3) comportant des lucarnes (19) sont ménagées de façon alternée avec les zones comportant des pontets (7) de liaison avec le bouchon (2).Cap according to either of Claims 1 and 2, characterized in that the zones of the ring (3) comprising dormers (19) are arranged alternately with the zones comprising bridges (7) connecting with the plug (2). Bouchon selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il comporte des moyens de verrouillage de l'extrémité (17) de chaque languette (10) associée à une lucarne à l'intérieur de cette dernière.Plug according to any one of claims 1 to 3, characterized in that it comprises means for locking the end (17) of each tab (10) associated with a skylight inside the latter. Bouchon selon la revendication 4, caractérisé en ce que les moyens de verrouillage de l'extrémité de chaque languette dans une lucarne sont réalisés par des dimensionnements correspondants de l'extrémité de la languette et de la lucarne permettant un emboîtement en force de l'une dans l'autre.Plug according to claim 4, characterized in that the means for locking the end of each tongue in a dormer are produced by corresponding dimensions of the end of the tongue and of the dormer allowing a force fitting of one in the other. Bouchon selon la revendication 4, caractérisé en ce que les moyens de verrouillage de l'extrémité (17) de chaque languette (10) dans une lucarne (19) sont constitués par un bec (18) ménagé à l'extrémité extérieure du rebord (16) d'appui de la languette sur un bord (20) de la lucarne (19).Cap according to claim 4, characterized in that the means for locking the end (17) of each tab (10) in a skylight (19) consist of a spout (18) formed at the outer end of the flange ( 16) for supporting the tongue on an edge (20) of the dormer (19).
EP92420398A 1991-11-08 1992-11-05 Plastic screw cap with anti tamper band Expired - Lifetime EP0541466B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9114047 1991-11-08
FR9114047A FR2683509B1 (en) 1991-11-08 1991-11-08 SCREW CAP, IN SYNTHETIC MATERIAL, EQUIPPED WITH A RING OF INVIOLABILITY.

Publications (2)

Publication Number Publication Date
EP0541466A1 true EP0541466A1 (en) 1993-05-12
EP0541466B1 EP0541466B1 (en) 1995-09-27

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ID=9418936

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Application Number Title Priority Date Filing Date
EP92420398A Expired - Lifetime EP0541466B1 (en) 1991-11-08 1992-11-05 Plastic screw cap with anti tamper band

Country Status (8)

Country Link
EP (1) EP0541466B1 (en)
JP (1) JPH06183450A (en)
KR (1) KR930009873A (en)
AT (1) ATE128433T1 (en)
CA (1) CA2082282A1 (en)
DE (1) DE69205117T2 (en)
FR (1) FR2683509B1 (en)
OA (1) OA09621A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764591A1 (en) * 1995-09-22 1997-03-26 Rieke Corporation Tamper evident child-resistant closure
EP0861792A1 (en) * 1997-02-27 1998-09-02 Owens-Illinois Closure Inc., Tamper-evident closure
GR1003064B (en) * 1997-07-22 1999-02-04 Bruno Zumbuhl Tab construction for closures having tamper evident rings
WO2005014414A1 (en) * 2003-08-07 2005-02-17 Sacmi Cooperativa Meccanici Imola Societa'cooperativa Cap means
US7059485B1 (en) * 1999-06-03 2006-06-13 Reidenbach Bryan L Tamper-resistant bottle closure
US7281638B2 (en) 2001-07-24 2007-10-16 Obrist Closures Switzerland Gmbh Snap-hinge closure with tamper-evident lid and method of making
WO2012017011A1 (en) * 2010-08-06 2012-02-09 Bericap Gmbh & Co. Kg Screw closure with flexible band
US10464726B2 (en) 2015-06-01 2019-11-05 Obrist Closures Switzerland Gmbh Tamper-evident closure
KR102177076B1 (en) * 2019-11-28 2020-11-10 주식회사 리페트 Cap for pet-containers in which end ring are simultaneously separated

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641868A1 (en) * 1996-10-10 1998-04-16 Reinhold W J Haertlein Identification and security band for container closures
DE102012208628B3 (en) * 2012-05-23 2013-07-04 Stella Kunststofftechnik Gmbh Closure cap with originality ring
JP6061357B1 (en) * 2015-07-08 2017-01-18 日本クロージャー株式会社 Caps and containers with caps
WO2019058552A1 (en) * 2017-09-25 2019-03-28 日本山村硝子株式会社 Synthetic resin cap and container
WO2019073794A1 (en) * 2017-10-10 2019-04-18 日本山村硝子株式会社 Synthetic resin cap and container
JP2019069794A (en) * 2017-10-10 2019-05-09 日本山村硝子株式会社 Synthetic resin cap and container

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EP0323812A2 (en) * 1987-11-10 1989-07-12 ITALCAPS S.p.A. Improvement in the composite closure caps with evidencing of the tampering
EP0432059A1 (en) * 1989-12-08 1991-06-12 ASTRA PLASTIQUE Société Anonyme Threaded closure cap with temper-evident band

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EP0323812A2 (en) * 1987-11-10 1989-07-12 ITALCAPS S.p.A. Improvement in the composite closure caps with evidencing of the tampering
EP0432059A1 (en) * 1989-12-08 1991-06-12 ASTRA PLASTIQUE Société Anonyme Threaded closure cap with temper-evident band

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764591A1 (en) * 1995-09-22 1997-03-26 Rieke Corporation Tamper evident child-resistant closure
EP0861792A1 (en) * 1997-02-27 1998-09-02 Owens-Illinois Closure Inc., Tamper-evident closure
AU730107B2 (en) * 1997-02-27 2001-02-22 Owens-Illinois Closure Inc. Tamper indicating package
GR1003064B (en) * 1997-07-22 1999-02-04 Bruno Zumbuhl Tab construction for closures having tamper evident rings
US7059485B1 (en) * 1999-06-03 2006-06-13 Reidenbach Bryan L Tamper-resistant bottle closure
US7281638B2 (en) 2001-07-24 2007-10-16 Obrist Closures Switzerland Gmbh Snap-hinge closure with tamper-evident lid and method of making
WO2005014414A1 (en) * 2003-08-07 2005-02-17 Sacmi Cooperativa Meccanici Imola Societa'cooperativa Cap means
EP1775230A1 (en) * 2003-08-07 2007-04-18 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Cap means
EP1757529A1 (en) * 2003-08-07 2007-02-28 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Cap means
US7878351B2 (en) 2003-08-07 2011-02-01 Sacmi Cooperativa Meccanici Imola Societa Cooperativa Cap arrangements
WO2012017011A1 (en) * 2010-08-06 2012-02-09 Bericap Gmbh & Co. Kg Screw closure with flexible band
CN103097253A (en) * 2010-08-06 2013-05-08 伯里凯普有限两合公司 Screw closure with flexible band
US8684203B2 (en) 2010-08-06 2014-04-01 Bericap Gmbh & Co. Kg Screw closure with flexible band
CN103097253B (en) * 2010-08-06 2016-03-02 伯里凯普有限两合公司 There is the spiral closing member of flexible-belt
US10464726B2 (en) 2015-06-01 2019-11-05 Obrist Closures Switzerland Gmbh Tamper-evident closure
KR102177076B1 (en) * 2019-11-28 2020-11-10 주식회사 리페트 Cap for pet-containers in which end ring are simultaneously separated

Also Published As

Publication number Publication date
CA2082282A1 (en) 1993-05-09
KR930009873A (en) 1993-06-21
FR2683509B1 (en) 1994-01-28
DE69205117D1 (en) 1995-11-02
EP0541466B1 (en) 1995-09-27
ATE128433T1 (en) 1995-10-15
OA09621A (en) 1993-04-30
DE69205117T2 (en) 1996-02-29
JPH06183450A (en) 1994-07-05
FR2683509A1 (en) 1993-05-14

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