EP0856474A1 - Sealing cap with tamper evident band - Google Patents

Sealing cap with tamper evident band Download PDF

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Publication number
EP0856474A1
EP0856474A1 EP98400195A EP98400195A EP0856474A1 EP 0856474 A1 EP0856474 A1 EP 0856474A1 EP 98400195 A EP98400195 A EP 98400195A EP 98400195 A EP98400195 A EP 98400195A EP 0856474 A1 EP0856474 A1 EP 0856474A1
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EP
European Patent Office
Prior art keywords
fin
cap according
flange
zone
under
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Withdrawn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
EP98400195A
Other languages
German (de)
French (fr)
Inventor
Armand Wagner
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.)
L&M Services BV
Original Assignee
Lynes Holdings SA
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Filing date
Publication date
Application filed by Lynes Holdings SA filed Critical Lynes Holdings SA
Publication of EP0856474A1 publication Critical patent/EP0856474A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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 present invention relates to a tamper-evident band cap.
  • a threaded plug intended to close off a container whose neck is provided with a hanging flange.
  • the lower zone is generally provided with a peripheral internal projection or fins which are liable to deform elastically. During the initial installation of the cap on the container these projections or fins can therefore retract when the flange passes before locking by pressing their free end under said flange.
  • the flexibility of the fins is such that sometimes the blockage is not not irreversible.
  • the cap when the cap is first unscrewed, the tamper-evident band is stressing and some fins can then deform before even the breakable area is not broken.
  • the present invention aims to solve this technical problem of satisfactorily by seeking an irreversible locking of the fin under the container flange.
  • a plug threaded for closing a container the neck of which is provided with a hooking collar comprising a tamper-evident band consisting of an upper zone breakable for attachment to the cap body and a lower zone provided with at least one locking fin under said flange, characterized in that said fin has a first support zone against the underside of said flange and a second support zone against the side wall of the container neck located under said collar so as to ensure the retention of the lower zone of the strip under the collar by bracing of the fin.
  • said first and / or second support zones consist of surfaces carried by the projecting ends of the fin.
  • the first and second support zones of the fin are carried by two separate teeth formed on the ends protruding from the fin.
  • said fin has a cross section polygonal; said first and second support zones being formed by the edges of the end polygon.
  • said first and second support zones consist of contact lines located on the protruding ends of the fin.
  • the plane passing through the first and second support zones is inclined relative to the axis of the plug with an angle between 0 and 90 ° and preferably equal to 45 °.
  • the wall of the tamper-evident band has a thickness more significant in the area under said fin.
  • the lower edge of the tamper-evident band has a heel capable of abutting against a shoulder made on the container neck and below said collar.
  • the section of the fin is increasing from the zone of connection with the strip to its end carrying the two support zones with a factor between 3 and 4.
  • the mean inclination of the fin relative to the axis of the cap is preferably between 35 ° and 40 °.
  • the plug of the present invention provides a lock reliable and irreversible of the tamper-evident band under the collar.
  • the double support forming the bracing of the fins on the neck of the container ensures a hooking whose resistance increases with the intensity of the lifting force produced by the unscrewing.
  • the first and second support zones tend to move away from each other thereby strengthening anchoring under the flange.
  • the tamper-evident band while ensuring a hooking reinforced by double support of the fins has a softness and flexibility sufficient to allow easy initial mounting of the cap on the neck of the container after filling or bottling.
  • the cap shown in FIG. 1 comprises a body 1 provided with a internal thread 10, intended to be screwed onto the threaded neck of a container fitted with a hooking collar, in order to seal it tightly.
  • the bottom of the cap is here provided with a seal J which can possibly be replaced by a self-sealing lip or any other organ sealing.
  • This cap also includes a tamper-evident band 2 made up a breakable upper zone 20 for attachment to the body 1 of the plug and a lower locking area under the flange of the container.
  • the lower zone is provided, on the periphery of its internal face with a projecting element consisting of several fins 21 produced in a discontinuous manner, as in the embodiment shown here or in another embodiment of realization (not shown) in the form of a single continuous fin.
  • the fins have an axial rigidity which avoids any risk of crushing.
  • these fins 21 are made with an elastically material deformable and can therefore pivot and / or flex upwards around an axis which is perpendicular to the axis of the plug and which passes through the connection zone 22 between the fin 21 and the internal face of the strip 2.
  • This pivoting and / or deformation capacity allows the fins 21 to retract when they come into forced support contact from above on the flange, in the initial assembly phase of the cap on the container.
  • the fins 21 can be deployed at new in the space included, under the collar, between the internal face of the strip 2 and the outer wall of the container neck as shown in FIG. 2.
  • the fins 21 are therefore in the locked position. irreversible under the flange C of the container R.
  • Each fin 21 has a first support zone 21a against the underside of the flange C and a second support zone 21b against the wall lateral external side of the neck of the container R, under the flange C.
  • the lower zone of the strip 2 is thus retained downwards by bracing of fin 21.
  • the body 1 of the plug tends to mount on the container neck while the lower zone of the strip 2 is held down by the fins 21, which causes the breakable zone 20 to rupture.
  • the double support of the fin 21 respectively under the flange and on the side wall of the collar ensures firm and resistant attachment.
  • the fin 21 has here a polygonal cross section, the first 21a and second 21b support zones of the fin 21 being formed by the edges of the end polygon.
  • the first support zone 21a against the underside of the flange C is a curved surface carried by the projecting upper end of the fin 21.
  • the second support zone 21b against the side wall of the neck is here angular and is carried by the projecting lower end of said fin.
  • the first and second support zones of the fin are carried by two separate teeth on the projecting ends, and then consist of simple contact lines.
  • the fin 21 has an increasing section from the connection zone 22 to its projecting ends forming the support zones 21a, 21b.
  • the relationship between end section and the section of the connection zone 22 with the strip 2 is between 3 and 4.
  • the mean inclination of the fin 21 relative to the axis of the plug is between 35 ° and 40 °. This average inclination is determined from the inclinations ⁇ , ⁇ respectively of the lower and upper faces of the fin 21 relative to the axis of the plug.
  • the plane passing through the first zone at the same time support 21a and by the second support area 21b of the fin 21 is inclined relative to to the axis of the plug with an angle between 0 and 90 ° and preferably equal at 45 °.
  • the upper face of the fin 21 is provided with a boss 23 intended to limit pivoting and / or upward bending of the fin.
  • This boss 23 thus forms a stop which comes into contact with the face internal of the strip 2, above the connection zone 22 by bending of the fin, when passing the flange C.
  • the lower edge of the strip 2 has at least at the level of the fins 21, an enlarged section forming a heel 24.
  • the heel 24 extends upwards by a straight flank to the connecting zone 22. Under these conditions the wall of the strip 2 located under the fin has a greater thickness than the wall located above of said fin, which prohibits any bending and / or pivoting of the fin 21 down.
  • the container R has a shoulder E located under the flange C. This shoulder is made at a distance d from the flange C such that the heel 24 can abut towards the low against said shoulder, when the cap is unscrewed, when the fin 21 is energized by the double press described above.

Abstract

The cap is threaded and seals a container (R) whose neck has a fastening flange (C) comprising a tamperproof band (2). The band consists of a divisible zone joining to the cap body and a lower zone with a locking lug (21) under the flange. The lug has one support zone (21a) against the lower face of the flange and another support zone (21b) against the side wall of the container neck under the flange. These ensure the retaining of the band lower zone under the flange by pressing against the lug. When the plug is unscrewed the divisible zone is ruptured.

Description

La présente invention concerne un bouchon à bande d'inviolabilité.The present invention relates to a tamper-evident band cap.

Plus précisément, elle concerne un bouchon fileté destiné à obturer un récipient dont le col est pourvu d'une collerette d'accrochage.More specifically, it relates to a threaded plug intended to close off a container whose neck is provided with a hanging flange.

Il existe déjà de nombreux bouchons de ce type comprenant une bande d'inviolabilité constituée d'une zone supérieure sécable pour le rattachement au corps du bouchon et une zone inférieure déformable pour le verrouillage sous ladite collerette.There are already many plugs of this type including a band of inviolability consisting of a breakable upper zone for attachment to the cap body and a deformable lower zone for locking under said collar.

La zone inférieure est généralement pourvue d'une saillie interne périphérique ou d'ailettes qui sont susceptibles de se déformer élastiquement. Lors de la pose initiale du bouchon sur le récipient ces saillies ou ailettes peuvent donc s'escamoter au passage de la collerette avant de se bloquer par appui de leur extrémité libre sous ladite collerette.The lower zone is generally provided with a peripheral internal projection or fins which are liable to deform elastically. During the initial installation of the cap on the container these projections or fins can therefore retract when the flange passes before locking by pressing their free end under said flange.

Toutefois, la souplesse des ailettes est telle que parfois le blocage n'est pas irréversible.However, the flexibility of the fins is such that sometimes the blockage is not not irreversible.

En effet, au premier dévissage du bouchon, la bande d'inviolabilité est mise sous contraintes et certaines ailettes peuvent alors se déformer avant même que la zone sécable ne soit rompue.Indeed, when the cap is first unscrewed, the tamper-evident band is stressing and some fins can then deform before even the breakable area is not broken.

Cette déformation est suffisante pour que des ailettes puissent échapper à l'emprise de la collerette et permettent ainsi le dégagement du bouchon sans séparation de la bande d'inviolabilité.This deformation is sufficient for fins to escape at the grip of the collar and thus allow the release of the plug without separation of the tamper-evident band.

Par conséquent, l'inviolabilité des bouchons comportant de telles bandes n'apparaít pas suffisamment fiable.Consequently, the inviolability of the caps comprising such bands does not appear sufficiently reliable.

La présente invention a pour but de résoudre ce problème technique de manière satisfaisante en recherchant un verrouillage irréversible de l'ailette sous la collerette du récipient.The present invention aims to solve this technical problem of satisfactorily by seeking an irreversible locking of the fin under the container flange.

Ce but est atteint, conformément à l'invention au moyen d'un bouchon fileté destiné à obturer un récipient dont le col est pourvu d'une collerette d'accrochage comprenant une bande d'inviolabilité constituée d'une zone supérieure sécable de rattachement au corps du bouchon et d'une zone inférieure pourvue d'au moins une ailette de verrouillage sous ladite collerette caractérisée en que ladite ailette comporte une première zone d'appui contre la face inférieure de ladite collerette et une seconde zone d'appui contre la paroi latérale du col du récipient située sous ladite collerette de façon à assurer la retenue de la zone inférieure de la bande sous la collerette par arc-boutement de l'ailette. This object is achieved, according to the invention by means of a plug threaded for closing a container, the neck of which is provided with a hooking collar comprising a tamper-evident band consisting of an upper zone breakable for attachment to the cap body and a lower zone provided with at least one locking fin under said flange, characterized in that said fin has a first support zone against the underside of said flange and a second support zone against the side wall of the container neck located under said collar so as to ensure the retention of the lower zone of the strip under the collar by bracing of the fin.

Selon un premier mode de réalisation, lesdites première et/ou seconde zones d'appui sont constituées de surfaces portées par les extrémités saillantes de l'ailette.According to a first embodiment, said first and / or second support zones consist of surfaces carried by the projecting ends of the fin.

Selon une variante de réalisation, les première et seconde zones d'appui de l'ailette sont portées par deux dents distinctes ménagées sur les extrémités saillantes de l'ailette.According to an alternative embodiment, the first and second support zones of the fin are carried by two separate teeth formed on the ends protruding from the fin.

Selon une autre variante, ladite ailette possède une section transversale polygonale ; lesdites première et seconde zones d'appui étant formées par les arêtes du polygone d'extrémité.According to another variant, said fin has a cross section polygonal; said first and second support zones being formed by the edges of the end polygon.

Selon encore une autre variante de réalisation, lesdites première et seconde zones d'appui sont constituées de lignes de contact situées sur les extrémités saillantes de l'ailette.According to yet another alternative embodiment, said first and second support zones consist of contact lines located on the protruding ends of the fin.

Selon une caractéristique avantageuse, le plan passant par les première et seconde zones d'appui est incliné par rapport à l'axe du bouchon avec un angle compris entre 0 et 90° et de préférence égal à 45°.According to an advantageous characteristic, the plane passing through the first and second support zones is inclined relative to the axis of the plug with an angle between 0 and 90 ° and preferably equal to 45 °.

De préférence, la paroi de la bande d'inviolabilité a une épaisseur plus importante dans la zone située sous ladite ailette.Preferably, the wall of the tamper-evident band has a thickness more significant in the area under said fin.

Selon une variante de réalisation particulière, le bord inférieur de la bande d'inviolabilité possède un talon susceptible de venir en appui contre un épaulement réalisé sur le col du récipient et en dessous de ladite collerette.According to a particular variant embodiment, the lower edge of the tamper-evident band has a heel capable of abutting against a shoulder made on the container neck and below said collar.

Selon encore d'autres caractéristiques, la section de l'ailette est croissante depuis la zone de liaison avec la bande jusqu'à son extrémité portant les deux zones d'appui avec un facteur compris entre 3 et 4.According to still other characteristics, the section of the fin is increasing from the zone of connection with the strip to its end carrying the two support zones with a factor between 3 and 4.

Par ailleurs, l'inclinaison moyenne de l'ailette par rapport à l'axe du bouchon est de préférence comprise entre 35° et 40°.Furthermore, the mean inclination of the fin relative to the axis of the cap is preferably between 35 ° and 40 °.

Le bouchon de la présente invention permet d'obtenir un verrouillage fiable et irréversible de la bande d'inviolabilité sous la collerette.The plug of the present invention provides a lock reliable and irreversible of the tamper-evident band under the collar.

Le double appui formant arc-boutement des ailettes sur le col du récipient assure un accrochage dont la résistance augmente avec l'intensité de l'effort d'arrachement produit par le dévissage.The double support forming the bracing of the fins on the neck of the container ensures a hooking whose resistance increases with the intensity of the lifting force produced by the unscrewing.

Ainsi, au fur et à mesure que le dévissage progresse, les première et seconde zones d'appui ont tendance à s'écarter l'une de l'autre en renforçant ainsi l'ancrage sous la collerette.Thus, as the unscrewing progresses, the first and second support zones tend to move away from each other thereby strengthening anchoring under the flange.

Dans ces conditions, les ailettes ne peuvent s'échapper et le dévissage produit nécessairement et instantanément la rupture de la zone sécable, ce qui est la garantie d'une bonne inviolabilité. Under these conditions, the fins cannot escape and unscrewing necessarily and instantaneously breaks the breakable zone, which is the guarantee of good inviolability.

En outre, la bande d'inviolabilité tout en assurant un accrochage renforcé par double appui des ailettes possède une souplesse et une flexibilité suffisantes pour permettre un montage initial aisé du bouchon sur le col du récipient après remplissage ou embouteillage.In addition, the tamper-evident band while ensuring a hooking reinforced by double support of the fins has a softness and flexibility sufficient to allow easy initial mounting of the cap on the neck of the container after filling or bottling.

La présente invention sera mieux comprise à la lecture de la description qui va suivre accompagnée des dessins sur lesquels :

  • la figure 1 représente une demi-vue en coupe d'un bouchon selon l'invention ;
  • la figure 2 représente une demi-vue en coupe partielle du bouchon de la figure 1 au niveau de sa bande d'inviolabilité.
    • The present invention will be better understood on reading the description which follows, accompanied by the drawings in which:
  • Figure 1 shows a half sectional view of a plug according to the invention;
  • Figure 2 shows a partial sectional half-view of the cap of Figure 1 at its tamper-evident band.

    • Le bouchon représenté sur la figure 1 comporte un corps 1 pourvu d'un filetage interne 10, destiné à se visser sur le col fileté d'un récipient équipé d'une collerette d'accrochage, en vue de l'obturer de manière étanche.The cap shown in FIG. 1 comprises a body 1 provided with a internal thread 10, intended to be screwed onto the threaded neck of a container fitted with a hooking collar, in order to seal it tightly.

    Le fond du bouchon est ici pourvu d'un joint d'étanchéité J qui peut éventuellement être remplacé par une lèvre auto jointante ou tout autre organe d'étanchéité.The bottom of the cap is here provided with a seal J which can possibly be replaced by a self-sealing lip or any other organ sealing.

    Ce bouchon comporte également une bande d'inviolabilité 2 constituée d'une zone supérieure sécable 20 pour le rattachement au corps 1 du bouchon et d'une zone inférieure de verrouillage sous la collerette du récipient.This cap also includes a tamper-evident band 2 made up a breakable upper zone 20 for attachment to the body 1 of the plug and a lower locking area under the flange of the container.

    La zone inférieure est pourvue, sur la périphérie de sa face interne d'un élément en saillie constitué de plusieurs ailettes 21 réalisées de façon discontinue, comme dans le mode de réalisation représenté ici ou bien dans un autre mode de réalisation (non représenté) sous forme d'une seule ailette continue.The lower zone is provided, on the periphery of its internal face with a projecting element consisting of several fins 21 produced in a discontinuous manner, as in the embodiment shown here or in another embodiment of realization (not shown) in the form of a single continuous fin.

    Les ailettes possèdent une rigidité axiale qui évite tout risque d'écrasement. Toutefois, ces ailettes 21 sont réalisées avec un matériau élastiquement déformable et peuvent donc pivoter et/ou fléchir vers le haut autour d'un axe qui est perpendiculaire à l'axe du bouchon et qui passe par la zone de liaison 22 entre l'ailette 21 et la face interne de la bande 2.The fins have an axial rigidity which avoids any risk of crushing. However, these fins 21 are made with an elastically material deformable and can therefore pivot and / or flex upwards around an axis which is perpendicular to the axis of the plug and which passes through the connection zone 22 between the fin 21 and the internal face of the strip 2.

    Cette capacité de pivotement et/ou de déformation permet aux ailettes 21 de s'escamoter lorsqu'elles viennent en contact d'appui forcé par le haut sur la collerette, dans la phase de montage initial du bouchon sur le récipient. En fin de montage après le passage de la collerette, les ailettes 21 peuvent se déployer à nouveau dans l'espace compris, sous la collerette, entre la face interne de la bande 2 et la paroi externe du col du récipient comme représenté sur la figure 2.This pivoting and / or deformation capacity allows the fins 21 to retract when they come into forced support contact from above on the flange, in the initial assembly phase of the cap on the container. In end of mounting after the flange has passed, the fins 21 can be deployed at new in the space included, under the collar, between the internal face of the strip 2 and the outer wall of the container neck as shown in FIG. 2.

    Sur cette figure, les ailettes 21 sont donc en position de verrouillage irréversible sous la collerette C du récipient R. In this figure, the fins 21 are therefore in the locked position. irreversible under the flange C of the container R.

    Chaque ailette 21 comporte une première zone d'appui 21a contre la face inférieure de la collerette C et une seconde zone d'appui 21b contre la paroi latérale externe du col du récipient R, sous la collerette C. La zone inférieure de la bande 2 est ainsi retenue vers le bas par arc-boutement de l'ailette 21.Each fin 21 has a first support zone 21a against the underside of the flange C and a second support zone 21b against the wall lateral external side of the neck of the container R, under the flange C. The lower zone of the strip 2 is thus retained downwards by bracing of fin 21.

    Lors de son dévissage le corps 1 du bouchon a tendance à monter sur le col du récipient tandis que la zone inférieure de la bande 2 est retenue vers le bas par les ailettes 21, ce qui provoque la rupture de la zone sécable 20.When it is unscrewed, the body 1 of the plug tends to mount on the container neck while the lower zone of the strip 2 is held down by the fins 21, which causes the breakable zone 20 to rupture.

    Le double appui de l'ailette 21 respectivement sous la collerette et sur la paroi latérale du col assure un accrochage ferme et résistant.The double support of the fin 21 respectively under the flange and on the side wall of the collar ensures firm and resistant attachment.

    La résultante des forces de réactions respectives de la face inférieure de la collerette C et de la paroi latérale du col est dirigée sensiblement selon l'axe longitudinal de l'ailette 21 ce qui, compte tenu de sa rigidité axiale évite tout risque de flexion de ladite ailette tant vers le haut que vers le bas.The result of the respective reaction forces of the underside of the collar C and the side wall of the neck is directed substantially along the axis longitudinal of the fin 21 which, given its axial rigidity avoids any risk bending said fin both upwards and downwards.

    Dans ces conditions, le degré d'inviolabilité est très élevé et la rupture de la zone sécable 20 se produit dès le début du dévissage d'ouverture.Under these conditions, the degree of inviolability is very high and the rupture of the breakable zone 20 occurs from the start of the opening unscrewing.

    L'ailette 21 possède ici une section transversale polygonale, les première 21a et seconde 21b zones d'appui de l'ailette 21 étant formées par les arêtes du polygone d'extrémité.The fin 21 has here a polygonal cross section, the first 21a and second 21b support zones of the fin 21 being formed by the edges of the end polygon.

    De préférence, la première zone d'appui 21a contre la face inférieure de la collerette C est une surface courbe portée par l'extrémité supérieure saillante de l'ailette 21.Preferably, the first support zone 21a against the underside of the flange C is a curved surface carried by the projecting upper end of the fin 21.

    La seconde zone d'appui 21b contre la paroi latérale du col est ici angulaire et est portée par l'extrémité inférieure saillante de ladite ailette.The second support zone 21b against the side wall of the neck is here angular and is carried by the projecting lower end of said fin.

    Selon un autre mode de réalisation non représenté, les première et seconde zones d'appui de l'ailette sont portées par deux dents distinctes ménagées sur les extrémités saillantes, et sont alors constituées de simples lignes de contact.According to another embodiment not shown, the first and second support zones of the fin are carried by two separate teeth on the projecting ends, and then consist of simple contact lines.

    L'ailette 21 a une section croissante depuis la zone de liaison 22 jusqu'à ses extrémités saillantes formant les zones d'appui 21a, 21b. Le rapport entre la section d'extrémité et la section de la zone de liaison 22 avec la bande 2 est compris entre 3 et 4.The fin 21 has an increasing section from the connection zone 22 to its projecting ends forming the support zones 21a, 21b. The relationship between end section and the section of the connection zone 22 with the strip 2 is between 3 and 4.

    L'inclinaison moyenne de l'ailette 21 par rapport à l'axe du bouchon est comprise entre 35° et 40°. Cette inclinaison moyenne est déterminée à partir des inclinaisons α, β respectivement des faces inférieure et supérieure de l'ailette 21 par rapport à l'axe du bouchon. Le plan passant à la fois par la première zone d'appui 21a et par la seconde zone d'appui 21b de l'ailette 21 est incliné par rapport à l'axe du bouchon avec un angle y compris entre 0 et 90° et de préférence égal à 45°.The mean inclination of the fin 21 relative to the axis of the plug is between 35 ° and 40 °. This average inclination is determined from the inclinations α, β respectively of the lower and upper faces of the fin 21 relative to the axis of the plug. The plane passing through the first zone at the same time support 21a and by the second support area 21b of the fin 21 is inclined relative to to the axis of the plug with an angle between 0 and 90 ° and preferably equal at 45 °.

    La face supérieure de l'ailette 21 est pourvue d'un bossage 23 destiné à limiter le pivotement et/ou la flexion vers le haut de l'ailette.The upper face of the fin 21 is provided with a boss 23 intended to limit pivoting and / or upward bending of the fin.

    Ce bossage 23 forme ainsi une butée qui vient en contact avec la face interne de la bande 2, au-dessus de la zone de liaison 22 par flexion de l'ailette, lors du passage de la collerette C.This boss 23 thus forms a stop which comes into contact with the face internal of the strip 2, above the connection zone 22 by bending of the fin, when passing the flange C.

    Le bord inférieur de bande 2 possède au moins au niveau des ailettes 21, une section élargie formant un talon 24. Le talon 24 se prolonge vers le haut par un flanc droit jusqu'à la zone de liaison 22. Dans ces conditions la paroi de la bande 2 située sous l'ailette a une épaisseur plus importante que la paroi située au-dessus de ladite ailette, ce qui interdit toute flexion et/ou pivotement de l'ailette 21 vers le bas.The lower edge of the strip 2 has at least at the level of the fins 21, an enlarged section forming a heel 24. The heel 24 extends upwards by a straight flank to the connecting zone 22. Under these conditions the wall of the strip 2 located under the fin has a greater thickness than the wall located above of said fin, which prohibits any bending and / or pivoting of the fin 21 down.

    Dans le mode de réalisation représenté sur la figure 2 le récipient R comporte un épaulement E situé sous la collerette C. Cet épaulement est réalisé à une distance d de la collerette C telle que le talon 24 puisse venir en butée vers le bas contre ledit épaulement, au moment du dévissage du bouchon, lorsque l'ailette 21 est mise sous tension par le double appui décrit précédemment.In the embodiment shown in Figure 2 the container R has a shoulder E located under the flange C. This shoulder is made at a distance d from the flange C such that the heel 24 can abut towards the low against said shoulder, when the cap is unscrewed, when the fin 21 is energized by the double press described above.

    Le double appui de l'ailette 21 et l'appui du talon 24 contre les parois en regard de la cavité ainsi formée sur le col du récipient, ferment complètement cette cavité et interdisent ainsi toute prise des ailettes et donc toute effraction de la bande 2.The double support of the fin 21 and the support of the heel 24 against the walls opposite the cavity thus formed on the neck of the container, close completely this cavity and thus prohibit any catch of the fins and therefore any break-in of the band 2.

    Claims (10)

    Bouchon fileté destiné à obturer un récipient (R) dont le col est pourvu d'une collerette (C) d'accrochage comprenant une bande d'inviolabilité (2) constituée d'une zone sécable (20) de rattachement au corps (1) du bouchon et d'une zone inférieure pourvue d'au moins une ailette (21) de verrouillage sous ladite collerette (C), caractérisé en que ladite ailette (21) comporte une première zone d'appui (21a) contre la face inférieure de ladite collerette (C) et une seconde zone d'appui (21b) contre la paroi latérale du col du récipient (R) située sous ladite collerette (C) de façon à assurer la retenue de la zone inférieure de la bande (2) sous la collerette (C) par arc-boutement de l'ailette (21).Threaded stopper intended to close a container (R) whose neck is provided with an attachment collar (C) comprising a tamper-evident band (2) consisting of a breakable zone (20) for attachment to the body (1) of the plug and a lower zone provided with at least one fin (21) for locking under said flange (C), characterized in that said fin (21) has a first support area (21a) against the underside of said flange (C) and a second bearing area (21b) against the side wall of the container neck (R) located under said flange (C) so as to ensure the retention of the lower zone of the strip (2) under the collar (C) by bracing of the fin (21). Bouchon selon la revendication 1, caractérisé en ce que lesdites première et/ou seconde zones d'appui (21a, 21b) sont constituées de surfaces portées par les extrémités saillantes de l'ailette (21).Cap according to claim 1, characterized in that said first and / or second support zones (21a, 21b) consist of surfaces carried by the projecting ends of the fin (21). Bouchon selon la revendication 1 ou 2, caractérisé en ce que les première et seconde zones d'appui (21a, 21b) de l'ailette (21) sont portées par deux dents distinctes ménagées sur les extrémités saillantes de l'ailette (21).Cap according to claim 1 or 2, characterized in that the first and second support zones (21a, 21b) of the fin (21) are carried by two separate teeth formed on the projecting ends of the fin (21). Bouchon selon l'une des revendications précédentes, caractérisé en ce que ladite ailette (21) possède une section transversale polygonale, lesdites première et seconde zones d'appui (21a, 21b) étant formées par les arêtes du polygone d'extrémité.Cap according to one of the preceding claims, characterized in that said fin (21) has a polygonal cross section, said first and second support zones (21a, 21b) being formed by the edges of the end polygon. Bouchon selon l'une des revendications 1 à 3, caractérisé en ce que lesdites première et seconde zones d'appui (21a, 21b) sont constituées de lignes de contact situées sur les extrémités saillantes de l'ailette (21).Cap according to one of Claims 1 to 3, characterized in that said first and second support zones (21a, 21b) consist of lines of contact located on the projecting ends of the fin (21). Bouchon selon l'une des revendications précédentes, caractérisé en ce que le plan passant par les première et seconde zones d'appui (21a, 21b) est incliné par rapport à l'axe du bouchon avec un angle (γ) compris entre 0 et 90° et de préférence égal à 45°.Cap according to one of the preceding claims, characterized in what the plane passing through the first and second support zones (21a, 21b) is inclined with respect to the axis of the cap with an angle (γ) between 0 and 90 ° and of preferably equal to 45 °. Bouchon selon l'une des revendications précédentes, caractérisé en ce que la paroi de la bande d'inviolabilité (2) a une épaisseur plus importante dans la zone située sous ladite ailette (21).Cap according to one of the preceding claims, characterized in that the wall of the tamper-evident band (2) has a greater thickness in the area under said fin (21). Bouchon selon l'une des revendications précédentes, caractérisé en ce que le bord inférieur de la bande d'inviolabilité (2) possède un talon (24) susceptible de venir en appui contre un épaulement (E) réalisé sur le col du récipient (R) en dessous de ladite collerette (C). Cap according to one of the preceding claims, characterized in that the lower edge of the tamper-evident band (2) has a heel (24) likely to come into abutment against a shoulder (E) made on the neck of the container (R) below said collar (C). Bouchon selon l'une des revendications précédentes, caractérisé en ce que la section de l'ailette (21) est croissante depuis la zone de liaison (22) avec la bande jusqu'à son extrémité portant les deux zones d'appui (21a, 21b) avec un facteur compris entre 3 et 4.Cap according to one of the preceding claims, characterized in that the section of the fin (21) is increasing from the connection zone (22) with the strip up to its end carrying the two support zones (21a, 21b) with a factor between 3 and 4. Bouchon selon l'une des revendications précédentes, caractérisé en ce que l'inclinaison moyenne de l'ailette (21) par rapport à l'axe du bouchon est comprise entre 35° et 40°.Cap according to one of the preceding claims, characterized in what the average inclination of the fin (21) relative to the axis of the plug is between 35 ° and 40 °.
    EP98400195A 1997-01-31 1998-01-30 Sealing cap with tamper evident band Withdrawn EP0856474A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    LU90016A LU90016B1 (en) 1997-01-31 1997-01-31 Tamper-evident stopper
    LU90016 1997-01-31

    Publications (1)

    Publication Number Publication Date
    EP0856474A1 true EP0856474A1 (en) 1998-08-05

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    ID=19731657

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98400195A Withdrawn EP0856474A1 (en) 1997-01-31 1998-01-30 Sealing cap with tamper evident band

    Country Status (2)

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    EP (1) EP0856474A1 (en)
    LU (1) LU90016B1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1683732A1 (en) * 2005-01-19 2006-07-26 Rieke Corporation Tamper-evident locking band for a container closure
    WO2017061001A1 (en) * 2015-10-08 2017-04-13 日本山村硝子株式会社 Synthetic resin cap
    CN112055689A (en) * 2018-03-01 2020-12-08 安德烈·卢洽娜·马丁斯 Automatic opening device for containers with sealing element

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GR1003064B (en) * 1997-07-22 1999-02-04 Bruno Zumbuhl Tab construction for closures having tamper evident rings
    WO2000034133A2 (en) * 1998-12-07 2000-06-15 Tjandra Limanjaya Closure cap

    Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3905017A1 (en) * 1989-02-18 1990-08-23 Wilhelm Goetz Closure for bottles and similar containers
    US5107998A (en) * 1991-06-14 1992-04-28 Bruno Zumbuhl Tamper proof ring for threaded closures
    US5145078A (en) * 1990-06-14 1992-09-08 Charles Hannon Pilfer-proof bottle cap
    EP0508396A1 (en) * 1991-04-09 1992-10-14 H-C Industries, Inc. Tamper-indicating plastic closure
    WO1996024532A1 (en) * 1995-02-10 1996-08-15 Crown Cork Ag Sealing cap with a guarantee strip
    WO1997000209A1 (en) * 1995-06-14 1997-01-03 Bruno Zumbuhl Threaded closure for pressurized containers

    Patent Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3905017A1 (en) * 1989-02-18 1990-08-23 Wilhelm Goetz Closure for bottles and similar containers
    US5145078A (en) * 1990-06-14 1992-09-08 Charles Hannon Pilfer-proof bottle cap
    EP0508396A1 (en) * 1991-04-09 1992-10-14 H-C Industries, Inc. Tamper-indicating plastic closure
    US5107998A (en) * 1991-06-14 1992-04-28 Bruno Zumbuhl Tamper proof ring for threaded closures
    WO1996024532A1 (en) * 1995-02-10 1996-08-15 Crown Cork Ag Sealing cap with a guarantee strip
    WO1997000209A1 (en) * 1995-06-14 1997-01-03 Bruno Zumbuhl Threaded closure for pressurized containers

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1683732A1 (en) * 2005-01-19 2006-07-26 Rieke Corporation Tamper-evident locking band for a container closure
    US7575123B2 (en) 2005-01-19 2009-08-18 Rieke Corporation Tamper-evident locking band for a container closure
    WO2017061001A1 (en) * 2015-10-08 2017-04-13 日本山村硝子株式会社 Synthetic resin cap
    CN112055689A (en) * 2018-03-01 2020-12-08 安德烈·卢洽娜·马丁斯 Automatic opening device for containers with sealing element

    Also Published As

    Publication number Publication date
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