EP1109729A1 - Tamperproof cap for container neck - Google Patents

Tamperproof cap for container neck

Info

Publication number
EP1109729A1
EP1109729A1 EP99939498A EP99939498A EP1109729A1 EP 1109729 A1 EP1109729 A1 EP 1109729A1 EP 99939498 A EP99939498 A EP 99939498A EP 99939498 A EP99939498 A EP 99939498A EP 1109729 A1 EP1109729 A1 EP 1109729A1
Authority
EP
European Patent Office
Prior art keywords
belt
neck
tabs
cap
tamper
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.)
Withdrawn
Application number
EP99939498A
Other languages
German (de)
French (fr)
Inventor
Philippe Bardet
Claude Benoit-Gonin
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 EP1109729A1 publication Critical patent/EP1109729A1/en
Withdrawn legal-status Critical Current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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/30—Annular members, e.g. with snap-over action or screw-threaded
    • 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
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/06—Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
    • B65D55/08—Annular elements encircling container necks
    • B65D55/0863—Plastic snap-on cap-like collars having frangible parts

Definitions

  • the present invention relates to a tamper-evident cap for a container, the neck of which has a peripheral bead, in particular for a plug from a barrel.
  • the barrels in particular the barrels of beer, are provided with a drain intended to receive a cane of racking.
  • the introduction of the cane pushes a valve which allows access to the liquid present in the barrel and to draw it out.
  • WO 94/16944 This document shows a cap for beer barrel plug, consisting of two elements: a skirt element and a plug element.
  • the skirt-forming element is placed on the bung of the barrel by non-reversible snap-fastening and on this element is glued by adhesive, or welded by ultrasound, the plug-forming element.
  • This example of a cap is unsatisfactory insofar as it requires an operation of joining the skirt-forming element and the plug-forming element.
  • the financial margins are extremely reduced, it is not interesting, in economic terms, to offer caps requiring molds complex to produce or requiring welding or gluing operations.
  • the object of the invention is to provide a cap of simple structure, ensuring the inviolability of a container whose neck has a peripheral bead, while allowing decoration of this cap for a low cost.
  • the cap according to the invention comprises: - a cylindrical belt comprising elastic hooking tabs below the bead of the neck of the container, in the form of hooks turned upwards and upper tabs arranged in the upper plane of the belt intended to come to bear on the end of the neck of the container, - a disc which bears on the edge of the neck, interposed between the upper tabs and the edge of the neck, the belt having, on its inner face, studs retaining disc against the upper tabs and having at least one rupture line over its entire height.
  • the cap is put in place by irreversible snap-fastening of the elastic hooking tabs below the bead.
  • the cap is removed by applying a pulling force to the lower periphery of the belt.
  • the belt tears at a breaking line.
  • the belt has at least one tear on its peripheral height on the one hand, proving a withdrawal or an attempt to remove the cap, and on the other hand prohibiting the replacement of the cap in its original integrity.
  • the cap according to the invention consists of two elements which can each be produced economically. Indeed, both the belt and the disc can be injection molded in molds allowing natural release, without requiring complex and expensive molds of the type with drawers or with perforated ceiling.
  • An additional advantage of the cap according to the invention is the ease with which it is possible to decorate it. Indeed, the part of a cap receiving a decoration is the upper face thereof. However, according to the invention, this face is an independent disk. This disc can be handled without risk of rupture and, as it has an almost two-dimensional geometry, it is easily stackable, storable and manipulable for decoration operations.
  • the cap according to the invention can be delivered assembled and, in this case, can be used like a conventional cap. It can also be delivered with two separate elements, each element being tinted in different colors. In this case it is possible to assemble caps with multiple color combinations.
  • the retaining studs are longitudinal ribs, oriented along a generatrix of the belt and located opposite the attachment tabs.
  • the upper tabs have a downward recess on the middle side of the belt, of profile complementary to that of a ' groove formed in the upper face of the disc.
  • This configuration of the upper tabs and of the disc prohibits the withdrawal of the disc relative to the belt, except by breaking at least one upper tab of the belt to remove the disc. The break-in then becomes apparent.
  • each line of rupture of the belt is a slot oriented along a generatrix of the belt, at at least one of the ends of which is arranged a breakable bridge.
  • the breaking lines are two in number.
  • the belt breaks into two half-belts which it is impossible to put back on the neck of a barrel.
  • at least one of the breaking lines is located opposite an upper tongue, this tongue being connected to the belt by two breakable bridges arranged on either side of the breaking line.
  • a stiffening rib allows, at equal rigidity, to produce a belt whose walls are thin and therefore participates in the production of a cap at the best cost.
  • the attachment tabs and the upper tabs are angularly offset from one another. Thanks to this geometrical arrangement of the upper tabs and of the hooking tabs, the belt is obtained by natural demolding and therefore does not require expensive production equipment and techniques.
  • a particularly advantageous embodiment of the invention provides for providing the disc, on its underside, with a rib whose outside diameter is equal to the inside diameter of the neck of the container. This rib for centering the cap on the drain.
  • Figure 1 is an exploded perspective view of the two components of the cap.
  • FIG. 2 is a sectional view, along ll-ll of FIG. 3, of the cap placed on the strip of a barrel provided with a collar,
  • Figure 3 is a top view of the cap.
  • the cap for barrel plug fitted with flange according to the invention consists of two elements: a belt (1) and a disc (2).
  • the belt (1) has a cylindrical geometry having a slight taper and comprises six hooking tabs (3), six upper tabs (4), six support ribs (5), two rupture slots (6) and two ribs stiffening (7).
  • the six elastic hooking tabs (3) in the form of hooks turned upwards, are inclined towards the center of the belt, as shown in Figures 1 and 2; so that the diameter of the fictitious circle passing through the end of the locking tabs corresponds to the diameter of the neck (8) under the flange (9).
  • Each attachment tab covers an angular sector of 35 °.
  • the upper tabs (4) extend radially towards the center of the belt in the upper opening plane of the latter and have a downward recess (10) in their distal parts. Each upper tab covers an angular sector of 25 °.
  • the attachment tabs (3) and the upper tabs (4) are angularly offset from one another.
  • the six support ribs (5) are arranged opposite each hooking tongue (3) along the generatrices of the belt.
  • the two rupture slots have at their lower end a rupture bridge (1 1).
  • the two rupture slots (6) are diametrically opposite and are arranged at two upper tabs which are connected to the belt by two rupture points (12, 12 '), on either side of the slot, as shown figure 3.
  • the stiffening ribs (7) extend in a semicircle on either side of the two rupture slots (6) at the outer lower periphery of the belt.
  • the disc (2) the diameter of which corresponds to the inside diameter of the belt, has a groove (13) on its upper face and a rib (14) on its lower face.
  • the groove (12) has a width corresponding to that of the recess (10) of the distal part of the upper tongues as shown in FIG. 2.
  • the rib (14) has an outside diameter corresponding to the inside diameter of the neck.
  • the disc (2) Before putting the cap on the collar, the disc (2) is inserted into the belt (1).
  • the hooking tabs (3) disappear and the disc (2) comes to take place between the top of the retaining ribs (5), the upper tabs (4) and the wall of the belt (2).
  • the hooking tabs (3) disappear on the bead (9). Once the bead has passed, the locking tabs (3) resume, thanks to their elasticity, their initial position as shown in FIG. 2 and irreversibly lock the cap on the neck of the container.
  • the invention thus provides a cap for barrel neck provided with a collar making it possible to remedy the drawbacks of the devices of the prior art, since the cap according to the invention has a simple structure and therefore economical to produce.
  • the cap according to the invention is easy to decorate since the part receiving the decoration is a disc.
  • the belt with a gripping tab to facilitate the gripping of the belt by the user or to make the disc retaining pads by pins.

Landscapes

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

Abstract

The invention concerns a tamperproof cap for a container whereof the neck has a peripheral band, in particular for a cask bung, consisting of a band (1) and a disk (2). The band (1) comprises elastic tab closures (3) located beneath the neck band, upper tabs (4) arranged in the band upper plane designed to be urged to press on the neck end, retaining ribs (5) and rupture slots (6) at the base of which is provided a frangible bridge (11), the upper tabs located at the rupture slots (6) are linked to the band by two frangible bridges (12) and (12'). The disk (2) which rests on the neck edge is maintained between the upper tabs (4) and the retaining ribs (5). When the cap is removed, the frangible bridges (11), (12), (12') are ruptured preventing subsequent replacing of the cap on the container neck in its initial intactness.

Description

Coiffe d'inviolabilité pour col de récipient Tamper evident cap for container neck
La présente invention concerne une coiffe d'inviolabilité pour récipient dont le col présente un bourrelet périphérique, notamment pour une bonde d'un fût.The present invention relates to a tamper-evident cap for a container, the neck of which has a peripheral bead, in particular for a plug from a barrel.
Les fûts, en particulier les fûts de bière, sont munis d'une bonde destinée à recevoir une canne de soutirage. L'introduction de la canne pousse un clapet qui permet d'accéder au liquide présent dans le fût et d'en effectuer le soutirage.The barrels, in particular the barrels of beer, are provided with a drain intended to receive a cane of racking. The introduction of the cane pushes a valve which allows access to the liquid present in the barrel and to draw it out.
Pour éviter qu'un soutirage frauduleux ne se produise entre le remplissage du fût et le soutirage effectué par l'utilisateur légitime du fût, il est connu de placer une coiffe sur la bonde du fût. La coiffe est encliquetée sur la bonde, de telle sorte que pour la retirer de la bonde il est nécessaire de la casser. L'absence de la coiffe constatée par l'utilisateur légitime indique alors qu'un soutirage ou une tentative de soutirage frauduleux s'est produit.To prevent fraudulent racking from occurring between the filling of the barrel and the racking carried out by the legitimate user of the barrel, it is known to place a cap on the bung of the barrel. The cap is snapped onto the plug, so that to remove it from the plug it is necessary to break it. The absence of the cap noted by the legitimate user then indicates that a racking or fraudulent racking attempt has occurred.
Un exemple de coiffe est décrit dans le document WO 97/38913. Ce document montre une coiffe munie d'une bande de déchirement et de languettes de verrouillage. Les languettes de verrouillage assurent le blocage non réversible de la coiffe sur une bonde. Lors du retrait de la coiffe, celle-ci se rompt au niveau de la bande de déchirement. Une telle coiffe est moulée par injection dans des moules complexes et donc coûteux à produire. Un autre exemple de coiffe est décrit dans le documentAn example of a cap is described in document WO 97/38913. This document shows a cap with a tear strip and locking tabs. The locking tabs ensure the non-reversible blocking of the cover on a drain. When the cap is removed, it breaks at the tear strip. Such a cap is injection molded into complex molds and therefore expensive to produce. Another example of a cap is described in the document
WO 94/16944. Ce document montre une coiffe pour bonde de fût dé bière, constituée de deux éléments : un élément formant jupe et un élément formant bouchon. L'élément formant jupe vient se placer sur la bonde du fût par encliquetage non réversible et sur cet élément est collé par adhésif, ou soudé par ultrasons, l'élément formant bouchon. Cet exemple de coiffe est peu satisfaisant dans la mesure où il exige une opération de solidarisation de l'élément formant jupe et de l'élément formant bouchon. Or, dans le domaine industriel d'utilisation de ces coiffes, les marges financières sont extrêmement réduites, il n'est pas intéressant, en termes économiques, de proposer des coiffes exigeant des moules complexes à produire ou demandant des opérations de soudage ou de collage.WO 94/16944. This document shows a cap for beer barrel plug, consisting of two elements: a skirt element and a plug element. The skirt-forming element is placed on the bung of the barrel by non-reversible snap-fastening and on this element is glued by adhesive, or welded by ultrasound, the plug-forming element. This example of a cap is unsatisfactory insofar as it requires an operation of joining the skirt-forming element and the plug-forming element. However, in the industrial field of use of these caps, the financial margins are extremely reduced, it is not interesting, in economic terms, to offer caps requiring molds complex to produce or requiring welding or gluing operations.
Un autre problème des coiffes connues est celui de leur décoration. En effet, les producteurs de boissons souhaitent utiliser les coiffes pour rappeler leurs marques, identifier le type de boissons stockées dans les fûts, ou indiquer la date préférée de consommation.Another problem with known headdresses is that of their decoration. In fact, beverage producers wish to use the caps to recall their brands, identify the type of beverage stored in the barrels, or indicate the preferred date of consumption.
Cette opération de décoration est rendue difficile sur les coiffes connues, par le fait qu'elles sont par nature fragiles. Or, l'impression d'une décoration nécessite de nombreuses manipulations qui risquent de causer leur rupture. De plus les coiffes connues présentent une géométrie tridimensionnelle qui peut compliquer l'opération de décoration.This decoration operation is made difficult on known caps, by the fact that they are inherently fragile. However, printing a decoration requires many manipulations which risk causing them to break. In addition, the known caps have a three-dimensional geometry which can complicate the decoration operation.
Enfin, la face supérieure des coiffes connues présente souvent des lignes de rupture qui interfèrent avec la décoration, rendant celle-ci peu lisible. L'invention a pour but de fournir une coiffe de structure simple, assurant l'inviolabilité d'un récipient dont le col présente un bourrelet périphérique, tout en permettant une décoration de cette coiffe pour un coût modique.Finally, the upper face of the known caps often exhibits rupture lines which interfere with the decoration, making it difficult to read. The object of the invention is to provide a cap of simple structure, ensuring the inviolability of a container whose neck has a peripheral bead, while allowing decoration of this cap for a low cost.
A cet effet, la coiffe selon l'invention comprend : - une ceinture cylindrique comprenant des languettes élastiques d'accrochage en dessous du bourrelet du col du récipient, en forme de crochets tournés vers le haut et des languettes supérieures disposées dans le plan supérieur de la ceinture destinées à venir prendre appui sur l'extrémité du col du récipient, - un disque qui prend appui sur le bord du col, interposé entre les languettes supérieures et le bord du col, la ceinture présentant, sur sa face intérieure, des plots de retenue du disque contre les languettes supérieures et comportant au moins une ligne de rupture sur toute sa hauteur. La mise en place de la coiffe se fait par encliquetage irréversible des languettes élastiques d'accrochage au-dessous du bourrelet. Le retrait de la coiffe s'effectue en appliquant une force de traction sur la périphérie inférieure de la ceinture. Lorsque la force de traction est supérieure à la résistance au déchirement de la zone la plus faible de la ceinture il se produit un déchirement de la ceinture au niveau d'une ligne de rupture. La ceinture présente au moins une déchirure sur sa hauteur périphérique d'une part, prouvant un retrait ou une tentative de retrait de la coiffe, et d'autre part interdisant la remise en place de la coiffe dans son intégrité initiale.To this end, the cap according to the invention comprises: - a cylindrical belt comprising elastic hooking tabs below the bead of the neck of the container, in the form of hooks turned upwards and upper tabs arranged in the upper plane of the belt intended to come to bear on the end of the neck of the container, - a disc which bears on the edge of the neck, interposed between the upper tabs and the edge of the neck, the belt having, on its inner face, studs retaining disc against the upper tabs and having at least one rupture line over its entire height. The cap is put in place by irreversible snap-fastening of the elastic hooking tabs below the bead. The cap is removed by applying a pulling force to the lower periphery of the belt. When the tensile force is greater than the tear strength of the weakest region of the belt, the belt tears at a breaking line. The belt has at least one tear on its peripheral height on the one hand, proving a withdrawal or an attempt to remove the cap, and on the other hand prohibiting the replacement of the cap in its original integrity.
Du fait de sa structure, la coiffe selon l'invention est constituée de deux éléments qui peuvent chacun être produits de manière économique. En effet, aussi bien la ceinture que le disque peuvent être moulés par injection dans des moules permettant un démoulage naturel, sans nécessiter de moules complexes et coûteux du type avec tiroirs ou avec plafond perforé. Un avantage supplémentaire de la coiffe selon l'invention tient à la facilité avec laquelle il est possible de procéder à sa décoration. En effet, la partie d'une coiffe recevant une décoration est la face supérieur de celle-ci. Or, selon l'invention, cette face est un disque indépendant. Ce disque est manipulable sans risque de rupture et, comme il présente une géométrie quasi bi-dimensionnelle, il est aisément empilable, stockable et manipulable en vue d'opérations de décoration.Due to its structure, the cap according to the invention consists of two elements which can each be produced economically. Indeed, both the belt and the disc can be injection molded in molds allowing natural release, without requiring complex and expensive molds of the type with drawers or with perforated ceiling. An additional advantage of the cap according to the invention is the ease with which it is possible to decorate it. Indeed, the part of a cap receiving a decoration is the upper face thereof. However, according to the invention, this face is an independent disk. This disc can be handled without risk of rupture and, as it has an almost two-dimensional geometry, it is easily stackable, storable and manipulable for decoration operations.
La coiffe selon l'invention peut être livrée assemblée et, dans ce cas, s'utiliser comme une coiffe classique. Elle peut également être livrée avec deux éléments séparés, chaque élément étant teinté de différentes couleurs. Dans ce cas il est possible d'assembler des coiffes présentant de multiples combinaisons de couleurs.The cap according to the invention can be delivered assembled and, in this case, can be used like a conventional cap. It can also be delivered with two separate elements, each element being tinted in different colors. In this case it is possible to assemble caps with multiple color combinations.
De préférence, les plots de retenue sont des nervures longitudinales, orientées suivant une génératrice de la ceinture et situées en regard des languettes d'accrochage. Les languettes supérieures présentent un décrochement vers le bas du côté du milieu de la ceinture, de profil complémentaire à celui d'une' rainure ménagée dans la face supérieure du disque.Preferably, the retaining studs are longitudinal ribs, oriented along a generatrix of the belt and located opposite the attachment tabs. The upper tabs have a downward recess on the middle side of the belt, of profile complementary to that of a ' groove formed in the upper face of the disc.
Cette configuration des languettes supérieures et du disque interdit le retrait du disque par rapport à la ceinture, sauf à casser au moins une languette supérieure de la ceinture pour retirer le disque. L'effraction devient alors apparente.This configuration of the upper tabs and of the disc prohibits the withdrawal of the disc relative to the belt, except by breaking at least one upper tab of the belt to remove the disc. The break-in then becomes apparent.
Dans un mode de réalisation préférentiel, chaque ligne de rupture de la ceinture est une fente orientée suivant une génératrice de la ceinture, à au moins l'une des extrémités de laquelle est disposé un pont ruptible.In a preferred embodiment, each line of rupture of the belt is a slot oriented along a generatrix of the belt, at at least one of the ends of which is arranged a breakable bridge.
Selon un mode de réalisation avantageux, les lignes de rupture sont au nombre de deux.According to an advantageous embodiment, the breaking lines are two in number.
Il résulte de cette disposition que, lors du retrait de la coiffe, la ceinture se casse en deux demi-ceintures qu'il est impossible de remettre sur le col d'un fût. Avantageusement, au moins l'une des lignes de rupture est située en regard d'une languette supérieure, cette languette étant reliée à la ceinture par deux ponts ruptibles disposés de part et d'autre de la ligne de rupture.It follows from this arrangement that, when the cap is removed, the belt breaks into two half-belts which it is impossible to put back on the neck of a barrel. Advantageously, at least one of the breaking lines is located opposite an upper tongue, this tongue being connected to the belt by two breakable bridges arranged on either side of the breaking line.
Lors du retrait de la coiffe, il se produit non seulement une rupture d'au moins une ligne de rupture, mais également une rupture d'au moins un pont ruptible, rendant l'effraction de la coiffe encore plus apparente.When removing the cap, not only does a rupture of at least one rupture line occur, but also a rupture of at least one breakable bridge, making the break-in of the cap even more apparent.
On peut prévoir de munir la ceinture d'une nervure de rigidification dans une zone périphérique inférieure et extérieure. Une telle nervure permet, à rigidité égale, de produire une ceinture dont les parois sont minces et participe donc à la production d'une coiffe au meilleur coût.Provision may be made to provide the belt with a stiffening rib in a lower and outer peripheral zone. Such a rib allows, at equal rigidity, to produce a belt whose walls are thin and therefore participates in the production of a cap at the best cost.
Avantageusement, les languettes d'accrochage et les languettes supérieures sont décalées angulairement les unes par rapport aux autres. Grâce à cette disposition géométrique des languettes supérieures et des languettes d'accrochage, l'obtention de la ceinture s'effectue par démoulage naturel et n'exige donc pas de matériels et techniques de production coûteux.Advantageously, the attachment tabs and the upper tabs are angularly offset from one another. Thanks to this geometrical arrangement of the upper tabs and of the hooking tabs, the belt is obtained by natural demolding and therefore does not require expensive production equipment and techniques.
Un mode de réalisation particulièrement avantageux de l'invention prévoit de munir le disque, sur sa face inférieure, d'une nervure dont le diamètre extérieur est égal au diamètre intérieur du col du récipient. Cette nervure permettant de centrer la coiffe sur la bonde.A particularly advantageous embodiment of the invention provides for providing the disc, on its underside, with a rib whose outside diameter is equal to the inside diameter of the neck of the container. This rib for centering the cap on the drain.
L'invention est décrite ci-après en référence au dessin annexé représentant, à titre d'exemple non limitatif, une forme de réalisation préférée d'une coiffe d'inviolabilité pour récipient dont le col présente un bourrelet.The invention is described below with reference to the accompanying drawing showing, by way of nonlimiting example, a preferred embodiment of a tamper-evident cap for a container whose neck has a bead.
Figure 1 est une vue en perspective éclatée des deux éléments constitutifs de la coiffe.Figure 1 is an exploded perspective view of the two components of the cap.
Figure 2 est une vue en coupe, suivant ll-ll de figure 3 de la coiffe mise en place sur la bande d'un fût muni d'une collerette,FIG. 2 is a sectional view, along ll-ll of FIG. 3, of the cap placed on the strip of a barrel provided with a collar,
Figure 3 est une vue de dessus de la coiffe. Comme montré sur la figure 1 , la coiffe pour bonde de fût munie collerette selon l'invention est constituée de deux éléments : une ceinture ( 1 ) et un disque (2).Figure 3 is a top view of the cap. As shown in Figure 1, the cap for barrel plug fitted with flange according to the invention consists of two elements: a belt (1) and a disc (2).
La ceinture (1 ) a une géométrie cylindrique présentant une légère conicité et comprend six languettes d'accrochage (3), six languettes supérieures (4), six nervures d'appui (5), deux fentes de rupture (6) et deux nervures de rigidification (7).The belt (1) has a cylindrical geometry having a slight taper and comprises six hooking tabs (3), six upper tabs (4), six support ribs (5), two rupture slots (6) and two ribs stiffening (7).
Les six languettes d'accrochage (3) élastiques, en forme de crochets tournés vers le haut, sont inclinées vers le centre de la ceinture, comme montré aux figures 1 et 2; de sorte que le diamètre du cercle fictif passant par l'extrémité des languettes de verrouillage corresponde au diamètre du col (8) sous la collerette (9). Chaque languette d'accrochage couvre un secteur angulaire de 35 ° .The six elastic hooking tabs (3), in the form of hooks turned upwards, are inclined towards the center of the belt, as shown in Figures 1 and 2; so that the diameter of the fictitious circle passing through the end of the locking tabs corresponds to the diameter of the neck (8) under the flange (9). Each attachment tab covers an angular sector of 35 °.
Les languettes supérieures (4) s'étendent radialement vers le centre de la ceinture dans le plan d'ouverture supérieur de celle-ci et présentent un décrochement vers le bas ( 10) dans leurs parties distales. Chaque languette supérieure couvre un secteur angulaire de 25 ° .The upper tabs (4) extend radially towards the center of the belt in the upper opening plane of the latter and have a downward recess (10) in their distal parts. Each upper tab covers an angular sector of 25 °.
Les languettes d'accrochage (3) et les languettes supérieures (4) sont décalées angulairement les unes par rapport aux autres. Les six nervures d'appui (5) sont disposées en regard de chaque languette d'accrochage (3) suivant les génératrices de la ceinture.The attachment tabs (3) and the upper tabs (4) are angularly offset from one another. The six support ribs (5) are arranged opposite each hooking tongue (3) along the generatrices of the belt.
Les deux fentes de rupture présentent au niveau de leur extrémité basse un pont de rupture (1 1 ).The two rupture slots have at their lower end a rupture bridge (1 1).
Les deux fentes de rupture (6) sont diamétralement opposées et sont disposées au niveau de deux languettes supérieures qui sont reliées à la ceinture par deux points de rupture ( 12, 12'), de part et d'autre de la fente, comme montré figure 3.The two rupture slots (6) are diametrically opposite and are arranged at two upper tabs which are connected to the belt by two rupture points (12, 12 '), on either side of the slot, as shown figure 3.
Les nervures de rigidification (7) s'étendent en demi-cercle de part et d'autre des deux fentes de rupture (6) à la périphérie inférieure extérieure de la ceinture.The stiffening ribs (7) extend in a semicircle on either side of the two rupture slots (6) at the outer lower periphery of the belt.
Le disque (2) dont le diamètre correspond au diamètre intérieur de la ceinture présente une rainure (13) sur sa face supérieure et une nervure (14) sur sa face inférieure.The disc (2), the diameter of which corresponds to the inside diameter of the belt, has a groove (13) on its upper face and a rib (14) on its lower face.
La rainure (12) présente une largeur correspondant à celle du décrochement (10) de la partie distale des languettes supérieures comme montré figure 2. La nervure (14) présente un diamètre extérieur correspondant au diamètre intérieur du col.The groove (12) has a width corresponding to that of the recess (10) of the distal part of the upper tongues as shown in FIG. 2. The rib (14) has an outside diameter corresponding to the inside diameter of the neck.
Avant la mise en place de la coiffe sur le col, le disque (2) est inséré dans la ceinture (1 ). Les languettes d'accrochage (3) s'effacent et le disque (2) vient prendre place entre le sommet des nervures de retenue (5), les languettes supérieures (4) et la paroi de la ceinture (2).Before putting the cap on the collar, the disc (2) is inserted into the belt (1). The hooking tabs (3) disappear and the disc (2) comes to take place between the top of the retaining ribs (5), the upper tabs (4) and the wall of the belt (2).
Lors de la mise en place de la coiffe, les languettes d'accrochage (3) s'effacent sur le bourrelet (9). Une fois le bourrelet passé, les languettes de verrouillage (3) reprennent, grâce à leur élasticité, leur position initiale comme montré figure 2 et verrouillent de façon irréversible la coiffe sur le col du récipient.When the cap is in place, the hooking tabs (3) disappear on the bead (9). Once the bead has passed, the locking tabs (3) resume, thanks to their elasticity, their initial position as shown in FIG. 2 and irreversibly lock the cap on the neck of the container.
Pour retirer la coiffe, un utilisateur exerce une force manuelle de traction sur la périphérie inférieure de la coiffe. La présence des languettes d'accrochage (3) interdit le retrait de la coiffe. Lorsque la force de traction exercée par l'utilisateur excède la force de résistance au déchirement de la zone la plus faible de la ceinture, il se produit une rupture des ponds de rupture ( 1 1 , 12 et 12'). La ceinture est alors en deux éléments. Toute tentative de remise en place de la coiffe sur la bonde se solde par un échec. En effet, les deux demi-cercles issus de la rupture de la ceinture ne peuvent pas retenir le disque (2). En conséquence il n'est pas possible de replacer la coiffe dans son intégrité sur le col du récipient.To remove the cap, a user exerts a manual pulling force on the lower periphery of the cap. The presence of the hooking tabs (3) prevents the cap from being removed. When the tensile force exerted by the user exceeds the force of resistance to tearing of the weakest zone of the belt, there is a rupture of the breaking pins (1 1, 12 and 12 '). The belt is then in two elements. Any attempt to replace the cap on the drain ends in failure. Indeed, the two semicircles resulting from the rupture of the belt cannot retain the disc (2). Consequently, it is not possible to replace the cap in its entirety on the neck of the container.
Dans le cas d'une tentative de retrait du disque (2), il se produit une rupture au niveau des points ruptibles ( 12 et 12'). Au moins l'une de languettes supérieures disposée en regard d'une fente de rupture est alors désolidarisée de la ceinture témoignant d'une tentative d'effraction.In the case of an attempt to remove the disc (2), a rupture occurs at the breakable points (12 and 12 '). At least one of the upper tabs disposed opposite a rupture slot is then separated from the belt, indicating an attempted break-in.
L'invention fournit ainsi une coiffe pour col de fût munie d'une collerette permettant de remédier aux inconvénients des dispositifs de la technique antérieure, puisque la coiffe selon l'invention présente une structure simple et donc économique à produire. La coiffe selon l'invention est aisée à décorer puisque la partie recevant la décoration est un disque.The invention thus provides a cap for barrel neck provided with a collar making it possible to remedy the drawbacks of the devices of the prior art, since the cap according to the invention has a simple structure and therefore economical to produce. The cap according to the invention is easy to decorate since the part receiving the decoration is a disc.
Il va de soi que l'invention ne se limite pas à la forme de réalisation décrite ci-dessus, mais elle en embrasse au contraire toutes les variantes de réalisation.It goes without saying that the invention is not limited to the embodiment described above, but on the contrary embraces all the variant embodiments thereof.
C'est ainsi, notamment, qu'il est envisageable de munir la ceinture d'une languette de préhension pour faciliter la saisie de la ceinture par l'utilisateur ou de réaliser les plots de retenue du disque par des pions. Thus, in particular, it is possible to provide the belt with a gripping tab to facilitate the gripping of the belt by the user or to make the disc retaining pads by pins.

Claims

REVENDICATIONS
1 - Coiffe d'inviolabilité pour récipient dont le col présente un bourrelet périphérique caractérisée en ce qu'elle comprend :1 - Tamper-evident cap for container whose neck has a peripheral bead characterized in that it comprises:
- une ceinture cylindrique ( 1 ) comprenant des languettes élastiques d'accrochage (3) en dessous du bourrelet (9) du col (8) du récipient, en forme de crochets tournés vers le haut et des languettes supérieures (4) disposées dans le plan supérieur de la ceinture destinées à venir prendre appui sur l'extrémité du col (8) du récipient,- a cylindrical belt (1) comprising elastic hooking tabs (3) below the bead (9) of the neck (8) of the container, in the form of hooks facing upwards and upper tabs (4) arranged in the upper plane of the belt intended to come to bear on the end of the neck (8) of the container,
- un disque (2) qui prend appui sur le bord du col (8), interposé entre les languettes supérieures (4) et le bord du col (8), la ceinture présentant, sur sa face intérieure, des plots de retenue du disque contre les languettes supérieures et comportant au moins une ligne de rupture sur toute sa hauteur.- a disc (2) which bears on the edge of the neck (8), interposed between the upper tabs (4) and the edge of the neck (8), the belt having, on its inner face, disc retaining studs against the upper tabs and comprising at least one breaking line over its entire height.
2 - Coiffe d'inviolabilité selon la revendication 1 , caractérisée en ce que les plots de retenue sont des nervures (5) longitudinales, orientées suivant une génératrice de la ceinture (1 ) et situées en regard des languettes d'accrochage (3).2 - Tamper-evident cap according to claim 1, characterized in that the retaining studs are ribs (5) longitudinal, oriented along a generatrix of the belt (1) and located opposite the fastening tabs (3).
3 - Coiffe d'inviolabilité selon l'une des revendications 1 et 2, caractérisée en ce que les languettes supérieures (4) présentent un décrochement (10) vers le bas du côté du milieu de la ceinture, de profil complémentaire à celui d'une rainure (13) ménagée dans la face supérieure du disque (2).3 - Tamper evident cap according to one of claims 1 and 2, characterized in that the upper tabs (4) have a recess (10) downwards on the side of the middle of the belt, of profile complementary to that of a groove (13) formed in the upper face of the disc (2).
4 - Coiffe d'inviolabilité selon l'une des revendications 1 à 3, caractérisée en ce que chaque ligne de rupture de la ceinture est une fente (6) orientée suivant une génératrice de la ceinture, à au moins l'une des extrémités de laquelle est disposé un pont ruptible (1 1 ).4 - Tamper-evident cap according to one of claims 1 to 3, characterized in that each line of rupture of the belt is a slot (6) oriented along a generatrix of the belt, at at least one of the ends of which is arranged a breakable bridge (1 1).
5 - Coiffe d'inviolabilité selon l'une des revendications 1 à 4, caractérisée en ce que les lignes de rupture sont au nombre de deux.5 - Tamper evident cap according to one of claims 1 to 4, characterized in that the rupture lines are two in number.
6 - Coiffe d'inviolabilité selon l'une des revendications 1 à 5, caractérisée en ce qu'au moins l'une des lignes de rupture (6) est située en regard d'une languette supérieure (4), cette languette étant reliée à la ceinture par deux points ruptibles ( 12, 12') disposés de part et d'autre de la ligne de rupture.6 - Tamper-evident cap according to one of claims 1 to 5, characterized in that at least one of the rupture lines (6) is located opposite an upper tab (4), this tab being connected at the belt by two breakable points (12, 12 ') arranged on either side of the break line.
7 - Coiffe d'inviolabilité selon l'une des revendications 1 à 6, caractérisée en ce que la ceinture (1 ) est munie d'une nervure (7) de rigidification dans sa zone périphérique inférieure extérieure. 8 - Coiffe d'inviolabilité selon l'une des revendications 1 à 7, caractérisée en ce que les languettes (3) d'accrochage et les languettes supérieures (4) sont décalées angulairement les unes par rapport aux autres.7 - Tamper evident cap according to one of claims 1 to 6, characterized in that the belt (1) is provided with a rib (7) of stiffening in its lower outer peripheral zone. 8 - Tamper evident cap according to one of claims 1 to 7, characterized in that the tabs (3) for attachment and the upper tabs (4) are angularly offset from each other.
9 - Coiffe d'inviolabilité selon l'une des revendications 1 à 8, caractérisée en ce que le disque (2) est muni, sur sa face inférieure, d'une nervure ( 14) dont le diamètre extérieur est égal au diamètre intérieur du col du récipient. 9 - Tamper evident cap according to one of claims 1 to 8, characterized in that the disc (2) is provided on its underside with a rib (14) whose outer diameter is equal to the inner diameter of the container neck.
EP99939498A 1998-08-31 1999-08-24 Tamperproof cap for container neck Withdrawn EP1109729A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9810986 1998-08-31
FR9810986A FR2782700B1 (en) 1998-08-31 1998-08-31 INVIOLABILITY CAP FOR CONTAINER NECK
PCT/FR1999/002037 WO2000012405A1 (en) 1998-08-31 1999-08-24 Tamperproof cap for container neck

Publications (1)

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EP1109729A1 true EP1109729A1 (en) 2001-06-27

Family

ID=9530062

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Application Number Title Priority Date Filing Date
EP99939498A Withdrawn EP1109729A1 (en) 1998-08-31 1999-08-24 Tamperproof cap for container neck

Country Status (4)

Country Link
EP (1) EP1109729A1 (en)
AU (1) AU5377199A (en)
FR (1) FR2782700B1 (en)
WO (1) WO2000012405A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002322932A1 (en) * 2002-08-01 2004-02-23 Stackteck Systems Limited Hook style tamper evident lid
US11565877B2 (en) * 2020-09-15 2023-01-31 In-Tech Enterprise Ltd. Container closure node system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2087262A1 (en) * 1990-07-13 1992-01-14 James G. Finneran Sealed snap top cap
DE4238206C2 (en) * 1992-11-09 2003-03-20 Spritzguswerk Kg Richard Rassb Tamper-evident closure for a container closed by a closure element
GB9301401D0 (en) * 1993-01-25 1993-03-17 Ryford Ltd Container closures
SE500464C2 (en) 1993-01-28 1994-06-27 Saab Scania Ab Device for checking the function of a de-icing means
GB9309493D0 (en) * 1993-05-07 1993-06-23 Ryford Ltd Container closures
ES2263160T3 (en) 1996-04-12 2006-12-01 Gevaplast ENGAGABLE CLOSURE FOR A BEER BARREL.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0012405A1 *

Also Published As

Publication number Publication date
FR2782700B1 (en) 2001-04-20
WO2000012405A1 (en) 2000-03-09
AU5377199A (en) 2000-03-21
FR2782700A1 (en) 2000-03-03

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