EP0107680A1 - Plastic threaded closure cap, with improved tamper-proof strip. - Google Patents

Plastic threaded closure cap, with improved tamper-proof strip.

Info

Publication number
EP0107680A1
EP0107680A1 EP83901205A EP83901205A EP0107680A1 EP 0107680 A1 EP0107680 A1 EP 0107680A1 EP 83901205 A EP83901205 A EP 83901205A EP 83901205 A EP83901205 A EP 83901205A EP 0107680 A1 EP0107680 A1 EP 0107680A1
Authority
EP
European Patent Office
Prior art keywords
skirt
capsule
tamper
neck
sealing means
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
EP83901205A
Other languages
German (de)
French (fr)
Other versions
EP0107680B1 (en
Inventor
Francis Couput
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.)
Pechiney Emballage Alimentaire
Original Assignee
Cebal SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26222882&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0107680(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from FR8207467A external-priority patent/FR2525565B1/en
Priority claimed from FR8304093A external-priority patent/FR2542285B2/en
Application filed by Cebal SAS filed Critical Cebal SAS
Publication of EP0107680A1 publication Critical patent/EP0107680A1/en
Application granted granted Critical
Publication of EP0107680B1 publication Critical patent/EP0107680B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0428—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a collar, flange, rib or the like contacting the top rim or the top edges or the external surface of a container neck
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
    • 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

Definitions

  • the invention relates to a screw closure cap, made of plastic, with an improved tamper-evident band. It relates to the technical field of packaging elements.
  • Numerous screw closure devices comprising a security means intended to control access to the content of the container closed by such devices, and to avoid, in particular, fraudulent operations on this content.
  • these corking devices which are mounted on bottles whose rings are of the type standardized almost universally and known under the name of "Pilferproof" comprise a screw cap, possibly provided with a seal. , and an annular security strip separably connected to the lower part of the capsule skirt. Any attempt to unscrew the capsule must cause the safety strip to separate.
  • these tamper-evident capsules were made of metal, in particular aluminum and, after screwing on the capsule, the security band was crimped onto the neck by a simple mechanical device.
  • thermoplastic polymers which no longer lend themselves to simple crimping because of their natural elasticity.
  • the present invention constitutes another solution to this problem, a solution which ensures both easy installation of the capsule and a frank and safe separation of the tamper-evident band during the first unscrewing.
  • Figures 1 to 4 show in section ( Figures 1 and 2) or in partially cut view ( Figures 3 and 4) the capsule, object of the invention.
  • FIG. 3 also represents a first means of sealing the capsule of the invention.
  • Figures 5 and 6 show in axial half-section a second sealing means.
  • FIG. 7 shows in axial half-section a third means of sealing.
  • the screw closure cap of the invention comprises (FIG. 1) a head (1) and a skirt (2) provided with an internal thread (3) which cooperates with the thread of the container to be capped.
  • the tamper-evident band (4) is attached to the lower part of the skirt (2) by a plurality of bridges (5) which constitute the breaking points during subsequent unscrewing.
  • the tamper-evident band (4) comprises a continuous annular upper part (4A) and a lower part constituted by a plurality of tabs such as (6) connected to the upper part (4A) by a part thinned (7) which constitutes a kind of articulation.
  • the tongues (6) further include a heel (8) and a thinned extension (9).
  • the tongues (6) are molded in the position of Figure 1, that is to say turned upwards. During the demolding, they turn over and come in vertical position according to figure 2. Once the demolding is finished, their own elasticity brings them back to the position of figure 1, after pivoting around the thinned area (7) which acts as a hinge . They thus form an acute angle with the annular part (4) and are turned towards the inside of the capsule.
  • This plastic screw cap closure with improved tamper-evident band comprises, with this tamper-evident device, sealing means which, separately or in combination, constitute advantageous improvements of the capsule.
  • a first sealing means is an inner cover (13) in the form of an inclined peripheral lip (FIG. 3), the outer surface of which is applied to the inside of the rounded end of the neck of the bottle during plugging by screwing the capsule.
  • a second sealing means (FIGS. 5 and 6) is particularly effective, it provides sealing inside the neck a little lower than its orifice thanks to a cover (14) connected to the head (1), this cover (14) being formed of a central chimney in the form of a skirt (15) flanked by a peripheral lateral lip (16).
  • the outside diameter of the body of the central chimney in the form of a skirt (15) is slightly smaller than the minimum diameter provided for the outside (17) of the neck, the terms minimum and maximum being understood as the generally accepted limits.
  • the outer diameter of the peripheral lateral lip (16) is a little larger than the maximum diameter provided for the interior (17), so that the end of this lip (16) first comes up against the end top of the neck when the capsule is screwed on.
  • the chimney (15) has an external diameter of 16, 3 mm and its peripheral lip (16) has an external diameter of 19.5 mm.
  • the internal pressure tends to apply more the lower end (18) of the chimney against the internal wall of the neck, and the end of the lateral lip device (16) continues to make a second seal, its application against the wall being due to its tilting and its elasticity.
  • the lip (16) is preferably directed downwards (FIG. 5), so as to accentuate this effect of tilting and of elastic support.
  • a third sealing means performs the sealing on the zone of the external surface of the neck between the rounded end of this neck and the start of the threading.
  • a peripheral lip (19) connected to the skirt (2) of the capsule above its thread extends inwards so that it comes to bear fairly strongly on the external wall of the neck, in the area between the rounded end and the thread, area with fairly close diameter tolerances when the cap is screwed on.
  • the end of the lip (19) comes to bear against the external wall of the neck and turns upwards by applying elastically.
  • the peripheral lip (19) at rest is preferably oriented downwards so as to increase this elastic effect or spring effect.
  • the screw closure cap of the invention provided with sealing means and in particular with any one of the three means specified above or with any combination of these means. is easy to produce by molding a thermoplastic polymer such as polypropylene. Its tamper-evident device offers total security and adapts perfectly to all automatic bottling and capping chains. The capsule of the invention adapts to the containers without harming their aesthetics.

Landscapes

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

Abstract

Capsule de bouchage à vis, en plastique, à bande d'inviolabilité, destinée à des récipients munis d'une bague du type "Pilferproof" comportant un filetage surmontant une contrebague dont la partie inférieure forme un rebord, ladite capsule comportant une tête, une jupe munie d'un filetage interne, et une bande d'inviolabilité reliée à la partie inférieure de la jupe par une pluralité de ponts constituant des liaisons sécables. La bande d'inviolabilité comporte deux parties, une première partie annulaire (4A) reliée à la partie inférieure de la jpe (2) par les ponts sécables (5) et une deuxième partie constituée par une pluralité de languettes (6) reliées à la première partie (4A) par des zones amincies (7) formant une articulation, chaque languette comportant un talon (8) et un prolongement aminci (9). Les languettes (6) forment avec la partie annulaire (4A) un angle aigu ayant son sommet sur les zones amincies (7) et sont tournées vers l'intérieur de la capsule. Des moyens d'étanchéité sont précisés.Screw cap, made of plastic, with tamper-evident strip, intended for containers fitted with a "Pilferproof" type ring comprising a thread surmounting a counter-ring whose lower part forms a rim, said capsule comprising a head, a skirt provided with an internal thread, and a tamper-proof strip connected to the lower part of the skirt by a plurality of bridges constituting breakable connections. The tamper evident strip comprises two parts, a first annular part (4A) connected to the lower part of the jpe (2) by the breakable bridges (5) and a second part constituted by a plurality of tabs (6) connected to the first part (4A) by thinned zones (7) forming a joint, each tongue comprising a heel (8) and a thinned extension (9). The tabs (6) form with the annular part (4A) an acute angle having its apex on the thinned zones (7) and are turned towards the inside of the capsule. Sealing means are specified.

Description

CAPSULE DE BOUCHAGE A VIS, EN PLASTIQUE, A BANDE D'INVIOLABILITE PERFECTIONNEE SCREW CAPSULE, PLASTIC, WITH IMPROVED SECURITY STRIP
L'invention concerne une capsule de bouchage à vis, en plastique, à bande d'inviolabilité perfectionnée. Elle se rattache au domaine technique des éléments d'emballage.The invention relates to a screw closure cap, made of plastic, with an improved tamper-evident band. It relates to the technical field of packaging elements.
On connait de nombreux dispositifs de bouchage à vis comportant un moyen de sécurité destiné à contrôler l'accès au contenu du récipient fermé par de tels dispositifs, et à éviter, en particulier, des manoeuvres frauduleuses sur ce contenu.Numerous screw closure devices are known comprising a security means intended to control access to the content of the container closed by such devices, and to avoid, in particular, fraudulent operations on this content.
De façon générale, ces dispositifs de bouchage qui se montent sur des bouteilles dont les bagues sont du type normalisé de façon quasi-universelle et connu sous le nom de "Pilferproof" comportent une capsule à vis, éventuellement munie d'un joint d'étanchéité, et une bande de sécurité annulaire reliée de façon séparable à la partie inférieure de la jupe de la capsule. Toute tentative de dévissage de la capsule doit provoquer la séparation de la bande de sécurité.In general, these corking devices which are mounted on bottles whose rings are of the type standardized almost universally and known under the name of "Pilferproof" comprise a screw cap, possibly provided with a seal. , and an annular security strip separably connected to the lower part of the capsule skirt. Any attempt to unscrew the capsule must cause the safety strip to separate.
A l'origine, ces capsules inviolables étaient réalisées en métal, notamment en aluminium et, après vissage de la capsule, la bande ce sécurité était sertie sur le goulot par un dispositif mécanique simpIe.Originally, these tamper-evident capsules were made of metal, in particular aluminum and, after screwing on the capsule, the security band was crimped onto the neck by a simple mechanical device.
A l'heure actuelle, on tend à substituer à l'aluminium des poly mères tnermoplastiques qui ne se prêtent plus à un sertissage simpIe en raison de leur élasticité naturelle.At the present time, there is a tendency to replace aluminum with thermoplastic polymers which no longer lend themselves to simple crimping because of their natural elasticity.
On a donc imaginé un certain nombre de solutions pour assurer un sertissage de la bande d'inviolabilité.A number of solutions have therefore been devised to ensure crimping of the tamper-evident band.
Dans les brevets français n° 2 282 378 et 2 467 790, on procède à une thermorétraction de la bande d'inviolabilité sous l'action d'un jet d'air chaud. Cette solution implique l'adjonction d'une étape supplémentaire sur les chaînes d'embouteillage et de capsulage, et présente le risque de fusion totale des bouchons lorsque la chaîne vient à s'arrêter, ce qui oblige à prévoir un dispositif de sécurité. En outre, l'aspect de la bande rétractée laisse souvent à désirer.In French patents No. 2,282,378 and 2,467,790, the tamper-evident band is heat shrunk under the action of a jet of hot air. This solution involves the addition of an additional step on the bottling and capping chains, and presents the risk of total cork melting when the chain comes to a stop, which means that a safety device must be provided. In addition, the appearance of the retracted band often leaves something to be desired.
Dans le brevet français 2439140, la bande d'inviolabilité se replie vers l'intérieur de la capsule lorsqu'on la visse sur le goulot d'un flacon, de façon telle que son rebord supérieur vient en butée sur une saillie du goulot. Lors du dévissage, la bande ainsi bloquée ne peut pas remonter et se sépare de la jupe. Mais il y a un risque que la bande se retire sans se séparer.In French patent 2439140, the tamper-evident band folds inwardly of the capsule when it is screwed onto the neck of a bottle, so that its upper rim abuts on a projection on the neck. When unscrewing, the band thus blocked cannot go back up and separates from the skirt. However, there is a risk that the strip will withdraw without separating.
La présente invention constitue une autre solution de ce problème, solution qui assure à la fois une mise en place facile de la capsule et une séparation franche et sûre de la bande d'inviolabilité lors du premier dévissage.The present invention constitutes another solution to this problem, a solution which ensures both easy installation of the capsule and a frank and safe separation of the tamper-evident band during the first unscrewing.
Des moyens d'étanchéité particuliers de la capsule sont proposés.Special sealing means for the capsule are proposed.
Les figures 1 à 4 représentent en coupe (figures 1 et 2) ou en vue partiellement coupée (figures 3 et 4) la capsule, objet de l'invention.Figures 1 to 4 show in section (Figures 1 and 2) or in partially cut view (Figures 3 and 4) the capsule, object of the invention.
La figure 3 représente aussi un premier moyen d'étanchéité de la capsule de l'invention.FIG. 3 also represents a first means of sealing the capsule of the invention.
Les figures 5 et 6 représentent en demi-coupe axiale un deuxième moyen c'étanchéité.Figures 5 and 6 show in axial half-section a second sealing means.
La figure 7 représente en demi-coupe axiale un troisième moyen d'étencnéité.FIG. 7 shows in axial half-section a third means of sealing.
La capsule de bouchage à vis de l'invention comporte (figure 1) une tête (1) et une jupe (2) munie d'un filetage interne (3) qui coopère avec le filetage du récipient à boucher. A la partie inférieure de la jupe (2), se rattache la bande d'inviolabilité (4) par une pluralité de ponts (5) qui constituent les points de rupture lors du dévissage ultérieur. La bande d'inviolabilité (4) comporte une partie supérieure annulaire continue (4A) et une partie inférieure constituée par une pluralité de languettes telles que (6) reliées à la partie supérieure (4A) par une partie amincie (7) qui constitue une sorte d'articulation. Les languettes (6) comportent en outre, un talon (8) et un prolongement aminci (9).The screw closure cap of the invention comprises (FIG. 1) a head (1) and a skirt (2) provided with an internal thread (3) which cooperates with the thread of the container to be capped. The tamper-evident band (4) is attached to the lower part of the skirt (2) by a plurality of bridges (5) which constitute the breaking points during subsequent unscrewing. The tamper-evident band (4) comprises a continuous annular upper part (4A) and a lower part constituted by a plurality of tabs such as (6) connected to the upper part (4A) by a part thinned (7) which constitutes a kind of articulation. The tongues (6) further include a heel (8) and a thinned extension (9).
Les languettes (6) sont moulées dans la position de la figure 1, c'est-à-dire retournées vers le haut. Pendant le démoulage, elles se retournent et viennent en position verticale selon la figure 2. Une fois le démoulage terminé, leur élasticité propre les ramène dans la position de la figure 1, après pivotement autour de la zone amincie (7) qui agit comme charnière. Elles forment ainsi un angle aigu avec la partie annulaire (4) et sont tournées vers l'intérieur de la capsule.The tongues (6) are molded in the position of Figure 1, that is to say turned upwards. During the demolding, they turn over and come in vertical position according to figure 2. Once the demolding is finished, their own elasticity brings them back to the position of figure 1, after pivoting around the thinned area (7) which acts as a hinge . They thus form an acute angle with the annular part (4) and are turned towards the inside of the capsule.
Lors du vissage de la capsule sur la bague de verrerie (10) (figures 3 et 4), les languettes (6) sont obligées par la contre bague (11) du goulot de se replier contre la bande (4) et, en fin de vissage, les talons (8) dépassent le rebord (12) de la contre bague (11) (figure 3). La mémoire élastique des languettes (6) les plaque alors sur la contrebague (11) dans une position telle que toute tentative de dévissage amène les talons (8) en butée sous le rebord (12) de la contrebague (11). La partie terminale amincie de la languette (6) étant coincée entre la bande (4A) et la contrebague (11), les talons (8) ne peuvent pas se dégager vers le bas, et la rupture des ponts (5) est alors inévitable, ce qui laisse la preuve visible de cette première ouverture de la capsule.When the capsule is screwed onto the glass ring (10) (Figures 3 and 4), the tabs (6) are forced by the counter ring (11) of the neck to fold against the strip (4) and, at the end screwing, the heels (8) exceed the flange (12) of the counter ring (11) (Figure 3). The elastic memory of the tongues (6) then places them on the counter-ring (11) in a position such that any attempt at unscrewing brings the heels (8) into abutment under the rim (12) of the counter-ring (11). The thinned end portion of the tongue (6) being wedged between the band (4A) and the counter-ring (11), the heels (8) cannot be released downwards, and the bridges (5) rupture is then inevitable. , which leaves visible evidence of this first opening of the capsule.
Cette capsule de bouchage à vis en plastique à bande d'inviolabilité perfectionnée comporte, avec ce dispositif d'inviolabilité, des moyens d'étanchéité qui, de façon distincte ou en association, constituent des améliorations intéressantes de la capsule.This plastic screw cap closure with improved tamper-evident band comprises, with this tamper-evident device, sealing means which, separately or in combination, constitute advantageous improvements of the capsule.
Un premier moyen d'étanchéité est un opercule intérieur (13) en forme de lèvre périphérique inclinée (figure 3) dont la surface extérieure vient s'appliquer sur l'intérieur de l'arrondi de l'extrémité du goulot de la bouteille lors du bouchage par vissage de la capsule. Un deuxième moyen d'étanchéité (figures 5 et 6) est particulièrement efficace, il réalise l'étanchéité à l'intérieur du goulot un peu plus bas que son orifice grâce à un opercule (14) raccordé à la tête (1), cet opercule (14) étant formé d'une cheminée centrale en forme de jupe (15) flanquée d'une lèvre latérale périphérique (16). Le diamètre extérieur du corps de la cheminée centrale en forme de jupe (15) est un peu plus faible que le diamètre minimal prévu pour l'extérieur (17) du goulot, les termes de minimal et de maximal s'entendant des limites généralement admises pour le diamètre intérieur (17) du fait des variations inhérentes aux procédés industriels de fabrication des bouteilles. Le diamètre extérieur de la lèvre latérale périphérique (16) est un peu plus grand que le diamètre maximal prévu pour l'intérieur (17), de façon que l'extrémité de cette lèvre (16) vienne d'abord buter sur l'extrémité supérieure du goulot lorsqu'on visse la capsule.A first sealing means is an inner cover (13) in the form of an inclined peripheral lip (FIG. 3), the outer surface of which is applied to the inside of the rounded end of the neck of the bottle during plugging by screwing the capsule. A second sealing means (FIGS. 5 and 6) is particularly effective, it provides sealing inside the neck a little lower than its orifice thanks to a cover (14) connected to the head (1), this cover (14) being formed of a central chimney in the form of a skirt (15) flanked by a peripheral lateral lip (16). The outside diameter of the body of the central chimney in the form of a skirt (15) is slightly smaller than the minimum diameter provided for the outside (17) of the neck, the terms minimum and maximum being understood as the generally accepted limits. for the internal diameter (17) due to the variations inherent in industrial processes for manufacturing bottles. The outer diameter of the peripheral lateral lip (16) is a little larger than the maximum diameter provided for the interior (17), so that the end of this lip (16) first comes up against the end top of the neck when the capsule is screwed on.
A titre d'exemple et pour fixer les idées, dans le cas d'un goulot de diamètre intérieur (17) compris dans la pratique industrielle entre 16,7 mm et 19 mm, la cheminée (15) a un diamètre extérieur de 16,3 mm et sa lèvre périphérique (16) a un diamètre extérieur de 19,5 mm.By way of example and to fix the ideas, in the case of an internal diameter neck (17) comprised in industrial practice between 16.7 mm and 19 mm, the chimney (15) has an external diameter of 16, 3 mm and its peripheral lip (16) has an external diameter of 19.5 mm.
Lors du vissage de la capsule, la partie inférieure (18) de la cheminée pénètre avec un léger jeu jusqu'à ce que la lèvre latérale périphérique (16) vienne buter sur le rebord du goulotWhen screwing on the capsule, the lower part (18) of the chimney penetrates with a slight play until the peripheral lateral lip (16) comes to rest on the edge of the neck
(figure 5). puis, lorsqu'on poursuit le vissage, la lèvre périphérique pénètre dans le goulot en basculant vers le haut (figure 6), ca cesculement entraînant un évasement de la partie inférieure (19) de la cheminée en forme de jupe (15), cette partie inférieure (15) venant alors s'appliquer plus bas sur la surface interne du goulot. On obtient ainsi une double étanchéité par les extrémités des lèvres (18) et (15). Comme on peut le voir sur la figure 6, cet effet de basculement et d'évasement se traduit dans chaque section axiale de l'opercule par un pivotement et une flexion schématisés par la flèche. Dans le cas d'un récipient contenant un liquide sous pression, la pression interne tend à appliquer davantage l'extrémité inférieure (18) de la cheminée contre la paroi interne du goulot, et l'extrémité de la lèvre latérale périphérique (16) continue à réaliser une deuxième étanchéité, son application contre la paroi étant dûe à son basculement et à son élasticité. La lèvre (16) est de préférence dirigée vers le bas (figure 5), de façon à accentuer cet effet de basculement et d'ap pui élastique.(figure 5). then, when the screwing is continued, the peripheral lip enters the neck by tilting upwards (FIG. 6), this tilting causing flaring of the lower part (19) of the skirt-shaped chimney (15), this lower part (15) then being applied lower on the internal surface of the neck. A double seal is thus obtained by the ends of the lips (18) and (15). As can be seen in FIG. 6, this tilting and flaring effect is reflected in each axial section of the cover by a pivoting and bending diagrammed by the arrow. In the case of a container containing a liquid under pressure, the internal pressure tends to apply more the lower end (18) of the chimney against the internal wall of the neck, and the end of the lateral lip device (16) continues to make a second seal, its application against the wall being due to its tilting and its elasticity. The lip (16) is preferably directed downwards (FIG. 5), so as to accentuate this effect of tilting and of elastic support.
Un troisième moyen d'étanchéité (figure 7) réalise l'étanchéité sur la zone de la surface extérieure du goulot comprise entre l'arrondi d'extrémité de ce goulot et le début du filetage. Une lèvre périphérique (19) raccordée à la jupe (2) de la capsule au- dessus de son filetage s'étend vers l'intérieur de façon telle qu'elle vienne s'appliquer assez fortement sur la paroi externe du goulot, dans la zone comprise entre l'arrondi d'extrémité et le filetage, zone dont les tolérances de diamètre sont assez étroites, lorsque la capsule est vissée. Quard on visse la capsule, l'extrémité de la lèbre (19) vient porter contre la paroi externe du goulot et se retourne vers le haut en s'appliquant de façon élastique. La lèvre périphérique (19) au repos est orientée de préférence vers le bas de façon à augmenter cet effet élastique ou effet ressort. L'intérêt de la localisation de cette lèvre périphérique constituant le troisième moyen d'étanchéité est la bonne reproductibilité de la qualité de l'étanchéité obtenue liée aux tolérances de diamètre étroites de la zone d'application.A third sealing means (FIG. 7) performs the sealing on the zone of the external surface of the neck between the rounded end of this neck and the start of the threading. A peripheral lip (19) connected to the skirt (2) of the capsule above its thread extends inwards so that it comes to bear fairly strongly on the external wall of the neck, in the area between the rounded end and the thread, area with fairly close diameter tolerances when the cap is screwed on. When the capsule is screwed on, the end of the lip (19) comes to bear against the external wall of the neck and turns upwards by applying elastically. The peripheral lip (19) at rest is preferably oriented downwards so as to increase this elastic effect or spring effect. The advantage of the location of this peripheral lip constituting the third sealing means is the good reproducibility of the quality of the sealing obtained linked to the narrow diameter tolerances of the application area.
La capsule de bouchage à vis de l'invention, munie de moyens d'étancréité et en particulier de l'un quelconque des trois moyens précisés ci-dessus ou d'une combinaison quelconque de ces moyens. est de réalisation facile par moulage d'un polymère thermoplastique tel que du polypropylène. Son dispositif d'inviolabilité offre une sécurité totale et s'adapte parfaitement à toutes les chaînes automatiques d'embouteillage et capsulage. La capsule de l'invention s'adapte sur les récipients sans nuire à leur esthétique. The screw closure cap of the invention, provided with sealing means and in particular with any one of the three means specified above or with any combination of these means. is easy to produce by molding a thermoplastic polymer such as polypropylene. Its tamper-evident device offers total security and adapts perfectly to all automatic bottling and capping chains. The capsule of the invention adapts to the containers without harming their aesthetics.

Claims

REVENDICATIONS
1°) Capsule de bouchage à vis, en plastique, à bande d'inviolabilité, destinée à des récipients munis d'une bague du type "Pilferproof" comportant un filetage surmontant une contrebague dont la partie inférieure forme un rebord, ladite capsule comportant une tête, une jupe munie d'un filetage interne, et une bande d'inviolabilité reliée à la partie inférieure de la jupe par une pluralité de ponts constituant des liaisons sécables, caractérisée en ce que la bande d'inviolabilité comporte deux parties, une première partie annulaire (4A) reliée à la partie inférieure de la jupe (2) par les ponts sécables (5) et une deuxième partie constituée par une pluralité de languettes (6) reliées à la première partie (4A) par des zones amincies (7) formant une articulation, chaque languette comportant un talon (8) et un prolongement aminci (9).1) Plastic screw cap closure with tamper-evident band, intended for containers fitted with a ring of the "Pilferproof" type comprising a thread surmounting a counter ring, the lower part of which forms a rim, said capsule comprising a head, a skirt provided with an internal thread, and a tamper-evident band connected to the lower part of the skirt by a plurality of bridges constituting breakable connections, characterized in that the tamper-evident band has two parts, a first annular part (4A) connected to the lower part of the skirt (2) by the breakable bridges (5) and a second part constituted by a plurality of tongues (6) connected to the first part (4A) by thinned zones (7 ) forming a joint, each tongue comprising a heel (8) and a thinned extension (9).
2°) Capsule selon la revendication 1, caractérisée en ce que les languettes (6) forment, avec la partie annulaire (4A) un angle aigu ayant son sommet sur les zones amincies (7) et sont tournées vers l'intérieur de la capsule.2) capsule according to claim 1, characterized in that the tongues (6) form, with the annular part (4A) an acute angle having its apex on the thinned zones (7) and are turned towards the interior of the capsule .
3°) Capsule selon la revendication 1 ou 2, caractérisé en ce que sa tête (1) comporte un moyen d'étanchéité constitué par un opercule intérieur (13) en ferme de jupe périphérique inclinée.3 °) capsule according to claim 1 or 2, characterized in that its head (1) comprises a sealing means constituted by an inner seal (13) in firm inclined peripheral skirt.
4º) Capsule selon la revendication 1 ou 2, caractérisée en ce eue sa tête (1) comporte un moyen d'étanchéité constitué par un opercule (14) formé d'une cheminée centrale en forme de jupe (15) flancuée d'une lèvre latérale périphérique (16), le diamètre extérieur de la jupe (15) étant un peu plus faible que le diamètre minimal de l'intérieur (17) du goulot et le diamètre extérieur de la lèvre latérale périphérique (16) étant un peu plus grand que le diamètre maximal de l'intérieur (17) du goulot.4º) capsule according to claim 1 or 2, characterized in that its head (1) comprises a sealing means constituted by a cover (14) formed by a central chimney in the form of a skirt (15) flanked by a lip peripheral side (16), the outside diameter of the skirt (15) being a little smaller than the minimum inside diameter (17) of the neck and the outside diameter of the peripheral side lip (16) being a little larger than the maximum inside diameter (17) of the neck.
5º) Capsule selon la revendication 1 ou 2, caractérisée en ce que l'intérieur de sa jupe (2) comporte au-dessus de son filetage un moyen d'étanchéité constitué par une lèvre périphérique (19) s'étendant vers l'intérieur de façon telle qu'elle vienne s'appliquer sur la paroi externe du goulot, dans la zone comprise entre l'arrondi d'extrémité et le filetage de ce goulot, lorsque la capsule est vissée.5º) capsule according to claim 1 or 2, characterized in that the interior of its skirt (2) has above its thread a sealing means constituted by a peripheral lip (19) extending inwardly so that she comes apply to the external wall of the neck, in the area between the rounded end and the thread of this neck, when the cap is screwed.
6°) Capsule selon la revendication 1 ou 2, caractérisée en ce qu'elle comporte plusieurs des moyens d'étanchéité des revendications 3, 4 ou 5. 6 °) capsule according to claim 1 or 2, characterized in that it comprises several of the sealing means of claims 3, 4 or 5.
EP83901205A 1982-04-23 1983-04-19 Plastic threaded closure cap, with improved tamper-proof strip Expired EP0107680B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8207467 1982-04-23
FR8207467A FR2525565B1 (en) 1982-04-23 1982-04-23 SCREW CAPSULE, PLASTIC, WITH IMPROVED SECURITY STRIP
FR8304093 1983-03-07
FR8304093A FR2542285B2 (en) 1983-03-07 1983-03-07 TIGHTENING CAPSULE, WITH WATERPROOF SCREW, IN PLASTIC, WITH IMPROVED SECURITY STRIP

Publications (2)

Publication Number Publication Date
EP0107680A1 true EP0107680A1 (en) 1984-05-09
EP0107680B1 EP0107680B1 (en) 1986-01-29

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ID=26222882

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EP83901205A Expired EP0107680B1 (en) 1982-04-23 1983-04-19 Plastic threaded closure cap, with improved tamper-proof strip

Country Status (9)

Country Link
US (1) US4546892A (en)
EP (1) EP0107680B1 (en)
JP (1) JPS59500667A (en)
AU (1) AU552974B2 (en)
DE (1) DE3361973D1 (en)
ES (1) ES281830Y (en)
IT (1) IT1161145B (en)
SU (1) SU1223835A3 (en)
WO (1) WO1983003809A1 (en)

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WO2000063089A1 (en) 1999-04-20 2000-10-26 Pechiney Emballage Alimentaire Composite closure cap
FR2792617A1 (en) 1999-04-20 2000-10-27 Pechiney Emballage Alimentaire Composite screw cap for bottle containing alcoholic drink has plastic insert fulfilling all technical functions and decorative outer cover
FR2803827A1 (en) 2000-01-13 2001-07-20 Pechiney Emballage Alimentaire CLOSURE CAPSULE FOR STANDARD GLASS RING
EP2522591A1 (en) 2011-05-09 2012-11-14 Amcor Flexibles Capsules France Screw capsule
EP2527266A1 (en) 2011-05-26 2012-11-28 Amcor Flexibles Capsules France Multi-part capsule with a seal disk

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US5096079A (en) * 1989-12-08 1992-03-17 Astra Plastique Screw-on stopper cap, having a tamper-proof band
WO2000063089A1 (en) 1999-04-20 2000-10-26 Pechiney Emballage Alimentaire Composite closure cap
FR2792617A1 (en) 1999-04-20 2000-10-27 Pechiney Emballage Alimentaire Composite screw cap for bottle containing alcoholic drink has plastic insert fulfilling all technical functions and decorative outer cover
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FR2803827A1 (en) 2000-01-13 2001-07-20 Pechiney Emballage Alimentaire CLOSURE CAPSULE FOR STANDARD GLASS RING
EP2522591A1 (en) 2011-05-09 2012-11-14 Amcor Flexibles Capsules France Screw capsule
WO2012152404A1 (en) 2011-05-09 2012-11-15 Amcor Flexibles Capsules France Screw cap closure
EP2527266A1 (en) 2011-05-26 2012-11-28 Amcor Flexibles Capsules France Multi-part capsule with a seal disk

Also Published As

Publication number Publication date
IT8320697A0 (en) 1983-04-20
ES281830U (en) 1985-04-01
WO1983003809A1 (en) 1983-11-10
ES281830Y (en) 1986-05-16
DE3361973D1 (en) 1986-03-13
EP0107680B1 (en) 1986-01-29
IT1161145B (en) 1987-03-11
JPH0210023B2 (en) 1990-03-06
JPS59500667A (en) 1984-04-19
SU1223835A3 (en) 1986-04-07
US4546892A (en) 1985-10-15
AU552974B2 (en) 1986-06-26
AU1472783A (en) 1983-11-21

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