EP2014567A1 - Snap-fitting cap equipped with a sealing lip - Google Patents

Snap-fitting cap equipped with a sealing lip Download PDF

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Publication number
EP2014567A1
EP2014567A1 EP08290527A EP08290527A EP2014567A1 EP 2014567 A1 EP2014567 A1 EP 2014567A1 EP 08290527 A EP08290527 A EP 08290527A EP 08290527 A EP08290527 A EP 08290527A EP 2014567 A1 EP2014567 A1 EP 2014567A1
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EP
European Patent Office
Prior art keywords
skirt
flange
proximal portion
bottom wall
outer skirt
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Withdrawn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
EP08290527A
Other languages
German (de)
French (fr)
Inventor
Philippe Nusbaum
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.)
Bericap SARL
Original Assignee
Bericap SARL
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Filing date
Publication date
Application filed by Bericap SARL filed Critical Bericap SARL
Publication of EP2014567A1 publication Critical patent/EP2014567A1/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Withdrawn legal-status Critical Current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
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/465—Snap-on caps or cap-like covers with integral internal sealing means
    • 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
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/485—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/25—Non-metallic tear-off strips

Definitions

  • the invention relates to a flat drink cap to be fixed by hooking onto a container neck, in particular on a flat drink bottle neck, and to a set consisting of a cap and a container neck.
  • Container caps provided with a bottom and a threaded outer skirt which is screwed onto a complementary thread of the neck of the container are well known in the state of the art. It can be seen that this type of fastening by screwing imposes a height of the neck and the skirt of the cap important to accommodate the threads, resulting in a large footprint in height. In addition, the threads require a large amount of material.
  • a plastic capsule for capping a container having a non-threaded neck provided with an upper flange and a lower flange.
  • the cap has a flat bottom, and an outer skirt having an upper portion secured to the bottom and a lower tamper ring to remain in place on the neck of the container, trapped under the lower flange.
  • the ring is connected to the skirt by four welds, a hinge and two tabs which are welded to the circumference of the skirt and the ring and serve as tamper evidence.
  • the sealing of the capsule is provided by an inner skirt provided with a bead protruding radially towards the outer skirt and defining with the outer skirt an annular groove in which is inserted the rim of the neck of the container.
  • the upper element the outer skirt has a protuberance to ensure a snap under the upper collar of the neck.
  • This capsule is of complex structure, and its manufacture requires many operations, including welding legs for tamper evidence. It is therefore not suitable for high speed manufacturing and low cost.
  • germs can be introduced into the gap between the solder points and back to the neck, so that the storage of containers can be problematic.
  • the bead of attachment to the flange which in theory could constitute a barrier against the rise of germs, is in fact inefficient because the relative positioning between the bead and the flange is not controlled.
  • the invention therefore aims to overcome the disadvantages of the state of the art, so as to provide a cap of reduced size and having a good seal and good performance on the aseptic plane.
  • the subject of the invention is a cap to be fixed by hooking on a container neck, comprising: a bottom wall; an outer skirt defining a reference geometric axis Z, the outer skirt having: a proximal portion secured to the bottom wall and having a threadless inner face provided with at least one inner hooking protuberance, and a tamper-evident ring distal located in the extension of the proximal portion of the outer skirt and connected to the proximal portion of the outer skirt by a breakable junction; the plug further having a radially inner skirt integral with the bottom wall and forming a first elastically deformable sealing lip, the proximal portion of the outer skirt further comprising a second lip located between the inner hooking protrusion and the tamper-evident ring, the second lip projecting radially inwards and axially towards the tamper-evident ring.
  • the absence of threading reduces the height of the skirt, so the size of the cap, and its thickness, so the amount of material.
  • the second lip provides a barrier against the intrusion of germs. Because of its orientation and its elasticity, it also acts as a return spring when it bears against the neck of the container, which contributes to the protrusion of attachment against the relief of the container on which the protrusion comes hang on.
  • the inner skirt integral with the bottom wall delimits with the inner face of the proximal portion of the outer skirt and the bottom wall an annular groove partially closed by the inner hooking protuberance.
  • the annular groove makes it possible to receive the rim of the neck of the receptacle, the inner skirt contributing both to the positioning of the stopper during assembly and to the sealing of the stopper.
  • the inner skirt is preferably provided with a bead projecting radially towards the outer skirt.
  • the second lip is substantially frustoconical.
  • the plug may have axial symmetry, which simplifies both its manufacture and its assembly.
  • the breakable junction is constituted by breakable bridges which can be separated from each other by incisions with contiguous edges.
  • the incisions practiced constitute an additional effective barrier against germs or other pollutants.
  • the incisions are through, which allows to fully control the force required to tear the bridges during the first opening.
  • the cap may further comprise a gripping tab projecting radially outwardly from the proximal portion of the skirt or the bottom wall.
  • This assembly offers, compared to devices with neck and threaded cap, a significant material gain, both at the neck and the cap, with high aseptic performance.
  • the neck further comprises an additional flange, the retaining collar being between the attachment flange and the additional flange, the tamper evident ring being located between the retaining flange and the additional flange.
  • the tamper ring falls on the additional collar.
  • FIG. figure 1 is a sectional view of a plug according to an embodiment of the invention.
  • the one-piece plug of molded plastic material 1, mounted on a container neck 2, comprises a bottom 3 consisting of a substantially discoidal wall, a substantially cylindrical outer skirt 4 and an inner sealing skirt 5, the two skirts 4 and 5 defining a common axis of revolution ZZ.
  • the stopper 1 is more particularly adapted to a threadless container neck as shown in the figures, which has on its outer face and from its base to its upper flange 21: a lower flange 22, an intermediate flange 23 for retaining and a upper flange 24 hanging part of the upper flange 21, the three collar 22, 23 and 24 protruding radially outwardly.
  • the neck further has a cylindrical inner face 25 defining the opening of the container.
  • the outer skirt 4 of the cap 1 has a proximal portion 41 directly integral with the bottom, and a distal portion 42 constituting a tamper-evident ring.
  • the proximal portion 41 has an inner face 410 provided with one or more hook protuberances 411 projecting radially inward, and more specifically in the exemplary embodiment, a single annular protuberance 411.
  • the distal portion 42 of the skirt located in the extension of the proximal portion 41, in continuity therewith, also has one or more protuberances 420 projecting radially inwardly.
  • At the junction between the distal portion and the proximal portion of the skirt are made incisions 43 passing through the wall of the skirt 4.
  • Each incision 43 has contiguous flanges, which is due to the fact that the incisions 43 are obtained by a cut made in the wall of the skirt without removing material.
  • the incisions 43 are made all around the skirt, and separated from each other by breakable bridges 44.
  • the inner skirt 5 is of variable thickness and slightly flared shape of its base secured to the bottom 3 towards its free end. More specifically, the thickness of the inner skirt 5 is relatively low at its base, which gives it a certain elasticity, while it is greater near its free end, forming a sealing bead 51 protruding therefrom radially outward.
  • An annular space 52 is delimited between the inner skirt 5, the proximal portion 41 of the outer skirt and the bottom 3 of the cap, forming a groove 52 partially closed by the protuberance 411.
  • the proximal portion 41 of the outer skirt 4 is provided on its inner face 410 with an elastic lip 412 protruding radially inwards and axially towards the tamper-evident ring 42 so as to bear against a frustoconical face 230 of the intermediate collar 23.
  • the cap is mounted on the neck of the container in force.
  • the upper flange 21 of the neck of the container is housed in the groove 52 and the hooking protrusion 411, after being deformed to ensure the passage of the upper flange 24, engages with the upper flange 24 to ensure the hooking of the cap on the neck of the container.
  • the inner skirt 5 by its flexibility, is deformed and is pressed, at the bead 51, on the cylindrical inner face of the neck of the container, ensuring at this level the tightness of the closure.
  • the elastic lip 412 is slightly deformed, resting on the intermediate collar 23. This contact is a first barrier against the intrusion of germs or pollutants.
  • the interference between the attachment protuberance 411 and the upper collar 24 provides a second barrier to secondary and optional germs.
  • the lip 412 by its elastic deformation, moreover tends to push the entire plug upwards so that the hooking protrusion 411 is held in abutment against the collar 24 with a pressure determined by the deformation of the lip 412. Furthermore, the contact obtained between the lip constituted by the inner skirt 5 and the cylindrical inner face 25 of the neck provides the main seal.
  • the container is opened by pulling on the stopper 1 or by pressing the thumb from below the toothed flange 6 upwards.
  • the protuberances 420 of the tamperproof ring 42 are locked in abutment against the intermediate flange 23, which which causes the breaking of the breakable bridges 44 during the upward movement of the upper part of the plug.
  • the ring 42 then falls on the lower flange 22, away from its initial position. If the cap 1 is reapposed on the container, the ring 42 disengaged from the proximal portion 41 of the skirt remains at a distance therefrom, thus marking the opening.
  • the closing and opening of the container is therefore carried out without rotation of the cap about its axis Z, therefore without screwing.
  • the cap has no threading, but can optionally be mounted on a threaded neck, provided that the neck is provided with an upper collar and an intermediate collar and that the thread does not interfere with the inner face 410 without threading the outer skirt 4.

Abstract

The closure has an external skirt comprising a proximal part (41) integrated to a base wall (3). A thread less interior surface (410) of the proximal part is provided with an interior hooking projection. A distal tamper resistance ring (42) is connected to the proximal part. A radially interior skirt (5) forms an elastically deformable sealing lip. The proximal part has an elastic lip (412) located between the projection and the ring. The elastic lip (412) radially projects towards interior and axially towards the ring. An independent claim is also included for a corking assembly comprising an unthreaded neck of container.

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention a trait à un bouchon pour boisson plate à fixer par accrochage sur un col de récipient, notamment sur un col de bouteille de boisson plate, et à un ensemble constitué d'un bouchon et d'un col de récipient.The invention relates to a flat drink cap to be fixed by hooking onto a container neck, in particular on a flat drink bottle neck, and to a set consisting of a cap and a container neck.

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

Les bouchons de récipient pourvu d'un fond et d'une jupe extérieure filetée venant se visser sur un filetage complémentaire du col du récipient sont bien connus dans l'état de la technique. On constate que ce type de fixation par vissage impose une hauteur du col et de la jupe du bouchon importantes pour accommoder les filetages, d'où un encombrement important en hauteur. De plus, les filetages nécessitent une quantité importante de matière.Container caps provided with a bottom and a threaded outer skirt which is screwed onto a complementary thread of the neck of the container are well known in the state of the art. It can be seen that this type of fastening by screwing imposes a height of the neck and the skirt of the cap important to accommodate the threads, resulting in a large footprint in height. In addition, the threads require a large amount of material.

Dans le document FR 1.476.330 est décrite une capsule en matière plastique pour le bouchage d'un récipient présentant un col non fileté pourvu d'une collerette supérieure et d'une collerette inférieure. Le bouchon comporte un fond plat, ainsi qu'une jupe externe présentant une partie supérieure solidaire du fond et un anneau d'inviolabilité inférieur destiné à rester en place sur le col du récipient, emprisonné sous la collerette inférieure. L'anneau est relié à la jupe par quatre points de soudure, une charnière et deux pattes qui sont soudées à la circonférence de la jupe et de l'anneau et servent de témoins d'inviolabilité. L'étanchéité de la capsule est assurée par une jupe interne pourvue d'un bourrelet faisant saillie radialement vers la jupe extérieure et délimitant avec la jupe extérieure une gorge annulaire dans laquelle vient s'insérer le rebord du col du récipient. L'élément supérieur de la jupe externe comporte une protubérance pour assurer un accrochage sous la collerette supérieure du col.In the document FR 1,476,330 there is disclosed a plastic capsule for capping a container having a non-threaded neck provided with an upper flange and a lower flange. The cap has a flat bottom, and an outer skirt having an upper portion secured to the bottom and a lower tamper ring to remain in place on the neck of the container, trapped under the lower flange. The ring is connected to the skirt by four welds, a hinge and two tabs which are welded to the circumference of the skirt and the ring and serve as tamper evidence. The sealing of the capsule is provided by an inner skirt provided with a bead protruding radially towards the outer skirt and defining with the outer skirt an annular groove in which is inserted the rim of the neck of the container. The upper element the outer skirt has a protuberance to ensure a snap under the upper collar of the neck.

Cette capsule est de structure complexe, et sa fabrication nécessite de nombreuses opérations, notamment de soudure des pattes servant de témoin d'inviolabilité. Elle n'est donc pas adaptée à une fabrication à cadence élevée et à coût réduit. De plus, des germes peuvent s'introduire dans l'interstice existant entre les points de soudure et remonter vers le col, de sorte que le stockage des récipients peut se révéler problématique. Enfin, le bourrelet d'accrochage à la collerette, qui en théorie pourrait constituer une barrière contre la remontée des germes, est en fait peu performant car le positionnement relatif entre le bourrelet et la collerette n'est pas maîtrisé.This capsule is of complex structure, and its manufacture requires many operations, including welding legs for tamper evidence. It is therefore not suitable for high speed manufacturing and low cost. In addition, germs can be introduced into the gap between the solder points and back to the neck, so that the storage of containers can be problematic. Finally, the bead of attachment to the flange, which in theory could constitute a barrier against the rise of germs, is in fact inefficient because the relative positioning between the bead and the flange is not controlled.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention vise donc à remédier aux inconvénients de l'état de la technique, de manière à proposer un bouchon d'encombrement réduit et présentant une bonne étanchéité et de bonnes performances sur le plan aseptique.The invention therefore aims to overcome the disadvantages of the state of the art, so as to provide a cap of reduced size and having a good seal and good performance on the aseptic plane.

A cet effet, et suivant un premier aspect de l'invention, celle-ci a pour objet un bouchon à fixer par accrochage sur un col récipient, comportant : une paroi de fond ; une jupe extérieure définissant un axe géométrique de référence Z, la jupe extérieure présentant : une partie proximale solidaire de la paroi de fond et présentant une face intérieure sans filetage pourvue d'au moins une protubérance intérieure d'accrochage, et un anneau d'inviolabilité distal situé dans le prolongement de la partie proximale de la jupe extérieure et relié à la partie proximale de la jupe extérieure par une jonction sécable ; le bouchon présentant en outre une jupe radialement intérieure solidaire de la paroi de fond et formant une première lèvre d'étanchéité élastiquement déformable, la partie proximale de la jupe extérieure comportant en outre une deuxième lèvre située entre la protubérance intérieure d'accrochage et l'anneau d'inviolabilité, la deuxième lèvre faisant saillie radialement vers l'intérieur et axialement vers l'anneau d'inviolabilité.For this purpose, and according to a first aspect of the invention, the subject of the invention is a cap to be fixed by hooking on a container neck, comprising: a bottom wall; an outer skirt defining a reference geometric axis Z, the outer skirt having: a proximal portion secured to the bottom wall and having a threadless inner face provided with at least one inner hooking protuberance, and a tamper-evident ring distal located in the extension of the proximal portion of the outer skirt and connected to the proximal portion of the outer skirt by a breakable junction; the plug further having a radially inner skirt integral with the bottom wall and forming a first elastically deformable sealing lip, the proximal portion of the outer skirt further comprising a second lip located between the inner hooking protrusion and the tamper-evident ring, the second lip projecting radially inwards and axially towards the tamper-evident ring.

L'absence de filetage permet de réduire la hauteur de la jupe, donc l'encombrement du bouchon, et son épaisseur, donc la quantité de matière. La deuxième lèvre assure une barrière contre l'intrusion des germes. Du fait de son orientation et de son élasticité, elle joue de plus une fonction de ressort de rappel lorsqu'elle vient en appui contre le col du récipient, ce qui contribue la protubérance d'accrochage contre le relief du récipient sur lequel la protubérance vient s'accrocher.The absence of threading reduces the height of the skirt, so the size of the cap, and its thickness, so the amount of material. The second lip provides a barrier against the intrusion of germs. Because of its orientation and its elasticity, it also acts as a return spring when it bears against the neck of the container, which contributes to the protrusion of attachment against the relief of the container on which the protrusion comes hang on.

Selon un mode de réalisation, la jupe intérieure solidaire de la paroi de fond délimite avec la face intérieure de la partie proximale de la jupe extérieure et la paroi de fond une gorge annulaire partiellement refermée par la protubérance intérieure d'accrochage. La gorge annulaire permet de recevoir le rebord du col du récipient, la jupe intérieure contribuant à la fois au positionnement du bouchon lors du montage et à l'étanchéité du bouchage.According to one embodiment, the inner skirt integral with the bottom wall delimits with the inner face of the proximal portion of the outer skirt and the bottom wall an annular groove partially closed by the inner hooking protuberance. The annular groove makes it possible to receive the rim of the neck of the receptacle, the inner skirt contributing both to the positioning of the stopper during assembly and to the sealing of the stopper.

La jupe intérieure est préférentiellement pourvue d'un bourrelet faisant saillie radialement vers la jupe extérieure.The inner skirt is preferably provided with a bead projecting radially towards the outer skirt.

Selon un mode de réalisation, la deuxième lèvre est sensiblement tronconique.According to one embodiment, the second lip is substantially frustoconical.

Avantageusement, le bouchon peut avoir une symétrie axiale, ce qui simplifie tant sa fabrication que son montage.Advantageously, the plug may have axial symmetry, which simplifies both its manufacture and its assembly.

Selon un mode de réalisation, la jonction sécable est constituée par des pontets sécables qui peuvent être séparés les uns des autres par des incisions aux rebords jointifs.According to one embodiment, the breakable junction is constituted by breakable bridges which can be separated from each other by incisions with contiguous edges.

Du fait de leurs rebords jointifs, les incisions pratiquées constituent une barrière supplémentaire efficace contre les germes ou autres polluants. De manière préférentielle, les incisions sont traversantes, ce qui permet de parfaitement maîtriser la force nécessaire à l'arrachement des pontets lors de la première ouverture.Because of their contiguous edges, the incisions practiced constitute an additional effective barrier against germs or other pollutants. Preferably, the incisions are through, which allows to fully control the force required to tear the bridges during the first opening.

Avantageusement, le bouchon peut en outre comporter une languette de préhension faisant saillie radialement vers l'extérieur à partir de la partie proximale de la jupe ou de la paroi de fond.Advantageously, the cap may further comprise a gripping tab projecting radially outwardly from the proximal portion of the skirt or the bottom wall.

Un deuxième aspect de l'invention a trait à un ensemble de bouchage, comportant

  • un col non fileté de récipient comportant :
    • un rebord annulaire délimitant un orifice supérieur et pourvu d'une collerette d'accrochage faisant saillie radialement vers l'extérieur ;
    • une face intérieure cylindrique définissant un axe de référence et délimitant avec le rebord une ouverture ;
    • une face extérieure formant une collerette de retenue ;
  • un bouchon comportant :
    • une paroi de fond obturant l'ouverture ;
    • une jupe extérieure définissant un axe géométrique de référence Z et présentant :
      • une partie proximale solidaire de la paroi de fond et présentant une face intérieure sans filetage pourvue d'au moins une protubérance intérieure d'accrochage accrochée élastiquement avec la collerette d'accrochage, et
      • un anneau d'inviolabilité distal situé dans le prolongement de la partie proximale de la jupe extérieure et relié à la partie proximale de la jupe extérieure par des pontets sécables, l'anneau étant pourvu d'au moins une protubérance de retenue interférant avec une facette plane de collerette de retenue ; et
    • une jupe intérieure solidaire de la paroi de fond et formant une première lèvre d'étanchéité élastique délimitant avec la face intérieure de la partie proximale de la jupe extérieure et la paroi de fond une gorge annulaire partiellement refermée par la protubérance intérieure d'accrochage et dans laquelle est logée le rebord,
La partie proximale de la jupe extérieure comporte en outre une deuxième lèvre d'étanchéité située entre la protubérance intérieure d'accrochage et l'anneau d'inviolabilité, la deuxième lèvre faisant saillie radialement vers l'intérieur et axialement vers l'anneau d'inviolabilité et venant en appui contre la face tronconique de la collerette de retenue.A second aspect of the invention relates to a closure assembly comprising
  • a non-threaded container neck comprising:
    • an annular flange delimiting an upper orifice and provided with a catch flange protruding radially outwards;
    • a cylindrical inner face defining a reference axis and defining with the rim an opening;
    • an outer face forming a retaining flange;
  • a cap comprising:
    • a bottom wall closing the opening;
    • an outer skirt defining a geometric axis of reference Z and having:
      • a proximal portion secured to the bottom wall and having a threadless inner face provided with at least one inner hooking protrusion resiliently hooked with the attachment collar, and
      • a distal tamper evident ring located in the extension of the proximal portion of the outer skirt and connected to the proximal portion of the outer skirt by breakable bridges, the ring being provided with at least one retaining protrusion interfering with a facet plane of retaining flange; and
    • an inner skirt integral with the bottom wall and forming a first elastic sealing lip delimiting with the inner face of the proximal portion of the outer skirt and the bottom wall an annular groove partially closed by the inner hooking protuberance and in which is the edge,
The proximal portion of the outer skirt further comprises a second sealing lip located between the inner hooking protuberance and the tamper-evident ring, the second lip projecting radially inwardly and axially towards the ring. inviolability and bearing against the frustoconical face of the retaining collar.

Cet ensemble offre, par rapport aux dispositifs à col et bouchon filetés, un gain de matière important, tant au niveau du col de que du bouchon, avec des performances aseptiques élevées.This assembly offers, compared to devices with neck and threaded cap, a significant material gain, both at the neck and the cap, with high aseptic performance.

Selon un mode de réalisation, le col comporte en outre une collerette additionnelle, la collerette de retenue se trouvant entre la collerette d'accrochage et la collerette additionnelle, l'anneau d'inviolabilité étant situé entre la collerette de retenue et la collerette additionnelle. Lors de l'ouverture du bouchon, l'anneau d'inviolabilité tombe sur la collerette additionnelle.According to one embodiment, the neck further comprises an additional flange, the retaining collar being between the attachment flange and the additional flange, the tamper evident ring being located between the retaining flange and the additional flange. When opening the cap, the tamper ring falls on the additional collar.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode particulier de réalisation de l'invention, donné à titre d'exemple non limitatif, et représenté sur la figure 1 qui est une vue en coupe d'un bouchon suivant un mode de réalisation de l'invention.Other advantages and features will emerge more clearly from the following description of a particular embodiment of the invention, given by way of non-limiting example, and shown in FIG. figure 1 which is a sectional view of a plug according to an embodiment of the invention.

DESCRIPTION DETAILLEE D'UN MODE DE REALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT

Tel qu'il est illustré sur la figures 1, le bouchon monobloc en matière plastique moulée 1, monté sur un col 2 de récipient, comprend un fond 3 constitué par une paroi sensiblement discoïdale, une jupe extérieure 4 sensiblement cylindrique et une jupe intérieure d'étanchéité 5, les deux jupes 4 et 5 définissant un axe de révolution commun ZZ.As illustrated on the figures 1 , the one-piece plug of molded plastic material 1, mounted on a container neck 2, comprises a bottom 3 consisting of a substantially discoidal wall, a substantially cylindrical outer skirt 4 and an inner sealing skirt 5, the two skirts 4 and 5 defining a common axis of revolution ZZ.

Le bouchon 1 est plus particulièrement adapté à un col de récipient sans filetage tel que représenté sur les figures, qui comporte sur sa face extérieure et de sa base vers son rebord supérieur 21 : une collerette inférieure 22, une collerette intermédiaire 23 de retenue et une collerette supérieure 24 d'accrochage faisant partie du rebord supérieur 21, les trois collerette 22, 23 et 24 faisant saillie radialement vers l'extérieur. Le col présente en outre une face intérieure cylindrique 25 délimitant l'ouverture du récipient.The stopper 1 is more particularly adapted to a threadless container neck as shown in the figures, which has on its outer face and from its base to its upper flange 21: a lower flange 22, an intermediate flange 23 for retaining and a upper flange 24 hanging part of the upper flange 21, the three collar 22, 23 and 24 protruding radially outwardly. The neck further has a cylindrical inner face 25 defining the opening of the container.

La jupe extérieure 4 du bouchon 1 présente une partie proximale 41 directement solidaire du fond, et une partie distale 42 constituant un anneau d'inviolabilité. La partie proximale 41 a une face intérieure 410 pourvue d'une ou plusieurs protubérances d'accrochage 411 faisant saillie radialement vers l'intérieur, et plus spécifiquement dans l'exemple de réalisation, une protubérance annulaire unique 411.The outer skirt 4 of the cap 1 has a proximal portion 41 directly integral with the bottom, and a distal portion 42 constituting a tamper-evident ring. The proximal portion 41 has an inner face 410 provided with one or more hook protuberances 411 projecting radially inward, and more specifically in the exemplary embodiment, a single annular protuberance 411.

La partie distale 42 de la jupe, située dans le prolongement de la partie proximale 41, en continuité avec celle-ci, comporte également une ou plusieurs protubérances 420 faisant saillie radialement vers l'intérieur. A la jonction entre la partie distale et la partie proximale de la jupe sont pratiquées des incisions 43 traversant la paroi de la jupe 4. Chaque incision 43 a des rebords jointifs, ce qui tient au fait que les incisions 43 sont obtenues par une découpe pratiquée dans la paroi de la jupe sans enlever de matière. Les incisions 43 sont pratiquées sur tout le pourtour de la jupe, et séparées les unes des autres par des pontets sécables 44.The distal portion 42 of the skirt, located in the extension of the proximal portion 41, in continuity therewith, also has one or more protuberances 420 projecting radially inwardly. At the junction between the distal portion and the proximal portion of the skirt are made incisions 43 passing through the wall of the skirt 4. Each incision 43 has contiguous flanges, which is due to the fact that the incisions 43 are obtained by a cut made in the wall of the skirt without removing material. The incisions 43 are made all around the skirt, and separated from each other by breakable bridges 44.

La jupe intérieure 5 est d'épaisseur variable et de forme légèrement évasée de sa base solidaire du fond 3 vers son extrémité libre. Plus précisément, l'épaisseur de la jupe intérieure 5 est relativement faible à sa base, ce qui lui confère une certaine élasticité, alors qu'elle est plus importante à proximité de son extrémité libre, y formant un bourrelet d'étanchéité 51 faisant saillie radialement vers l'extérieur. Un espace annulaire 52 est délimité entre la jupe intérieure 5, la partie proximale 41 de la jupe extérieure et le fond 3 du bouchon, formant une gorge 52 partiellement refermée par la protubérance 411.The inner skirt 5 is of variable thickness and slightly flared shape of its base secured to the bottom 3 towards its free end. More specifically, the thickness of the inner skirt 5 is relatively low at its base, which gives it a certain elasticity, while it is greater near its free end, forming a sealing bead 51 protruding therefrom radially outward. An annular space 52 is delimited between the inner skirt 5, the proximal portion 41 of the outer skirt and the bottom 3 of the cap, forming a groove 52 partially closed by the protuberance 411.

La partie proximale 41 de la jupe extérieure 4 est pourvue, sur sa face intérieure 410, d'une lèvre élastique 412 faisant saillie radialement vers l'intérieur et axialement vers l'anneau d'inviolabilité 42 de manière à venir en appui sur une face tronconique 230 de la collerette intermédiaire 23.The proximal portion 41 of the outer skirt 4 is provided on its inner face 410 with an elastic lip 412 protruding radially inwards and axially towards the tamper-evident ring 42 so as to bear against a frustoconical face 230 of the intermediate collar 23.

Le bouchon est monté sur le col du récipient en force. Le rebord supérieur 21 du col du récipient vient se loger dans la gorge 52 et la protubérance d'accrochage 411, après s'être déformée pour assurer le passage de la collerette supérieure 24, vient en prise avec la collerette supérieure 24 pour assurer l'accrochage du bouchon sur le col du récipient. La jupe intérieure 5, par sa flexibilité, se déforme et vient se plaquer, au niveau du bourrelet 51, sur la face intérieure cylindrique du col du récipient, assurant à ce niveau l'étanchéité du bouchage. En position fermée, la lèvre élastique 412 est légèrement déformée, en appui sur la collerette intermédiaire 23. Ce contact constitue une première barrière s'opposant à l'intrusion de germes ou de polluants. L'interférence entre la protubérance d'accrochage 411 et la collerette supérieure 24 offre une deuxième barrière aux germes d'ordre secondaire et optionnel. La lèvre 412, par sa déformation élastique, a de plus tendance à repousser l'ensemble du bouchon vers le haut de sorte que la protubérance d'accrochage 411 est maintenue en appui contre la collerette 24 avec une pression déterminée par la déformation de la lèvre 412. Par ailleurs, le contact obtenu entre la lèvre constituée par la jupe intérieure 5 et la face intérieure cylindrique 25 du col assure l'étanchéité principale.The cap is mounted on the neck of the container in force. The upper flange 21 of the neck of the container is housed in the groove 52 and the hooking protrusion 411, after being deformed to ensure the passage of the upper flange 24, engages with the upper flange 24 to ensure the hooking of the cap on the neck of the container. The inner skirt 5, by its flexibility, is deformed and is pressed, at the bead 51, on the cylindrical inner face of the neck of the container, ensuring at this level the tightness of the closure. In the closed position, the elastic lip 412 is slightly deformed, resting on the intermediate collar 23. This contact is a first barrier against the intrusion of germs or pollutants. The interference between the attachment protuberance 411 and the upper collar 24 provides a second barrier to secondary and optional germs. The lip 412, by its elastic deformation, moreover tends to push the entire plug upwards so that the hooking protrusion 411 is held in abutment against the collar 24 with a pressure determined by the deformation of the lip 412. Furthermore, the contact obtained between the lip constituted by the inner skirt 5 and the cylindrical inner face 25 of the neck provides the main seal.

On ouvre le récipient en tirant sur le bouchon 1 ou en faisant une pression du pouce par le dessous du rebord denté 6 vers le haut. A la première ouverture, les protubérances 420 de la bague d'inviolabilité 42 se trouvent bloquées en butée contre la collerette intermédiaire 23, ce qui provoque l'arrachement des pontets sécables 44 lors du mouvement ascendant de la partie supérieure du bouchon. La bague 42 retombe alors sur la collerette inférieure 22, à distance de sa position initiale. Si le bouchon 1 est réapposé sur le récipient, la bague 42 désolidarisée de la partie proximale 41 de la jupe reste à distance de celle-ci, marquant ainsi l'ouverture. De manière remarquable, la fermeture et l'ouverture du récipient s'effectuent donc sans rotation du bouchon autour de son axe Z, donc sans vissage.The container is opened by pulling on the stopper 1 or by pressing the thumb from below the toothed flange 6 upwards. At the first opening, the protuberances 420 of the tamperproof ring 42 are locked in abutment against the intermediate flange 23, which which causes the breaking of the breakable bridges 44 during the upward movement of the upper part of the plug. The ring 42 then falls on the lower flange 22, away from its initial position. If the cap 1 is reapposed on the container, the ring 42 disengaged from the proximal portion 41 of the skirt remains at a distance therefrom, thus marking the opening. Remarkably, the closing and opening of the container is therefore carried out without rotation of the cap about its axis Z, therefore without screwing.

Naturellement, diverses modifications sont possibles.Naturally, various modifications are possible.

Il est par exemple possible de prévoir une languette de préhension faisant saillie radialement vers l'extérieur à partir de la partie proximale de la jupe ou de la paroi de fond.It is for example possible to provide a gripping tab projecting radially outwardly from the proximal portion of the skirt or the bottom wall.

Le bouchon est dépourvu de filetage, mais peut le cas échéant être monté sur un col fileté, pour autant que le col soit pourvu d'une collerette supérieure et d'une collerette intermédiaire et que le filetage n'interfère pas avec la face intérieure 410 sans filetage de la jupe extérieure 4.The cap has no threading, but can optionally be mounted on a threaded neck, provided that the neck is provided with an upper collar and an intermediate collar and that the thread does not interfere with the inner face 410 without threading the outer skirt 4.

Claims (9)

Bouchon (1) à fixer par accrochage sur un col (2) de récipient, le bouchon (1) comportant : - une paroi de fond (3) ; - une jupe extérieure (4) définissant un axe géométrique de référence (Z) et présentant : - une partie proximale (41) solidaire de la paroi de fond (3) et présentant une face intérieure (410) sans filetage pourvue d'au moins une protubérance intérieure d'accrochage (411), et - un anneau d'inviolabilité distal (42) situé dans le prolongement de la partie proximale (41) de la jupe extérieure et relié à la partie proximale (41) de la jupe extérieure par une jonction sécable (44) ; et - une jupe radialement intérieure (5) solidaire de la paroi de fond (3) et formant une première lèvre d'étanchéité élastiquement déformable, caractérisé en ce que la partie proximale (41) de la jupe extérieure comporte en outre une deuxième lèvre (412) située entre la protubérance intérieure d'accrochage (411) et l'anneau d'inviolabilité (42), la deuxième lèvre (412) faisant saillie radialement vers l'intérieur et axialement vers l'anneau d'inviolabilité (42).Stopper (1) to be fixed by hooking on a neck (2) of container, the stopper (1) comprising: a bottom wall (3); an outer skirt (4) defining a reference geometric axis (Z) and having: - a proximal portion (41) integral with the bottom wall (3) and having a threadless inner face (410) provided with at least one inner hooking protuberance (411), and - a distal tamper evident ring (42) located in the extension of the proximal portion (41) of the outer skirt and connected to the proximal portion (41) of the outer skirt by a breakable junction (44); and a radially inner skirt (5) integral with the bottom wall (3) and forming a first elastically deformable sealing lip, characterized in that the proximal portion (41) of the outer skirt further comprises a second lip (412) located between the inner hooking protrusion (411) and the tamper-evident ring (42), the second lip (412). ) protruding radially inward and axially towards the tamper evident ring (42). Bouchon selon la revendication 1, caractérisé en ce que la jupe intérieure (5) solidaire de la paroi de fond (3) délimite avec la face intérieure (410) de la partie proximale de la jupe extérieure et la paroi de fond (3) une gorge annulaire (52) partiellement refermée par la protubérance intérieure d'accrochage (411).Stopper according to claim 1, characterized in that the inner skirt (5) integral with the bottom wall (3) delimits with the inner face (410) of the proximal portion of the outer skirt and the bottom wall (3) a annular groove (52) partially closed by the inner hooking protuberance (411). Bouchon selon la revendication 1 ou la revendication 2, caractérisé en ce que la jupe intérieure est pourvue d'un bourrelet faisant saillie radialement vers la jupe extérieure.Stopper according to claim 1 or claim 2, characterized in that the inner skirt is provided with a bead projecting radially towards the outer skirt. Bouchon selon l'une quelconque des revendications précédentes, caractérisé en ce que la deuxième lèvre (412) est sensiblement tronconique.Stopper according to any one of the preceding claims, characterized in that the second lip (412) is substantially frustoconical. Bouchon selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon a une symétrie axiale.Stopper according to any one of the preceding claims, characterized in that the plug has an axial symmetry. Bouchon selon l'une quelconque des revendications précédentes, caractérisé en ce que la jonction sécable est constituée par des pontets sécables (44).Stopper according to any one of the preceding claims, characterized in that the breakable junction is constituted by breakable bridges (44). Bouchon selon la revendication 6, caractérisé en ce que les pontets sécables sont séparés les uns des autres par des incisions (43) aux rebords jointifs.Stopper according to claim 6, characterized in that the breakable bridges are separated from each other by incisions (43) contiguous edges. Ensemble de bouchage, comportant - un col (2) non fileté de récipient comportant : - un rebord annulaire (21) délimitant un orifice supérieur et pourvu d'une collerette d'accrochage (24) faisant saillie radialement vers l'extérieur ; - une face intérieure cylindrique (25) définissant un axe de référence et délimitant avec le rebord (21) une ouverture ; - une face extérieure formant une collerette de retenue (23); - un bouchon (1) comportant : - une paroi de fond (3) obturant l'ouverture ; - une jupe extérieure (4) définissant un axe géométrique de référence (Z) et présentant : - une partie proximale (41) solidaire de la paroi de fond (3) et présentant une face intérieure (410) sans filetage pourvue d'au moins une protubérance intérieure d'accrochage (411) accrochée élastiquement avec la collerette d'accrochage (24), et - un anneau d'inviolabilité distal (42) situé dans le prolongement de la partie proximale (41) de la jupe extérieure et relié à la partie proximale (41) de la jupe extérieure par des pontets sécables (44), l'anneau (42) étant pourvu d'au moins une protubérance de retenue (420) interférant avec une facette plane de collerette de retenue (23) ; et - une jupe intérieure (5) solidaire de la paroi de fond (3) et formant une première lèvre d'étanchéité élastique délimitant avec la face intérieure (410) de la partie proximale de la jupe extérieure et la paroi de fond (3) une gorge annulaire (52) partiellement refermée par la protubérance intérieure d'accrochage (411) et dans laquelle est logée le rebord (21), caractérisé en ce que la partie proximale (41) de la jupe comporte en outre une deuxième lèvre d'étanchéité (412) située entre la protubérance intérieure d'accrochage (411) et l'anneau d'inviolabilité (42), la deuxième lèvre (412) faisant saillie radialement vers l'intérieur et axialement vers l'anneau d'inviolabilité (42) et venant en appui contre la face tronconique (230) de la collerette de retenue.Clogging set, comprising an unthreaded neck (2) comprising: - an annular flange (21) defining an upper orifice and provided with a catch flange (24) projecting radially outwardly; - a cylindrical inner face (25) defining a reference axis and defining with the flange (21) an opening; an outer face forming a retaining flange (23); a stopper (1) comprising: - a bottom wall (3) closing the opening; an outer skirt (4) defining a reference geometric axis (Z) and having: - A proximal portion (41) integral with the bottom wall (3) and having an inner face (410) without threading provided with at least one inner hooking protrusion (411) resiliently hooked with the attachment flange (24). ), and a distal inviolability ring (42) located in the extension of the proximal portion (41) of the outer skirt and connected to the proximal portion (41) of the outer skirt by breakable bridges (44), the ring ( 42) being provided with at least one retaining protuberance (420) interfering with a planar flange facet (23); and - an inner skirt (5) integral with the bottom wall (3) and forming a first elastic sealing lip delimiting with the inner face (410) of the proximal portion of the outer skirt and the bottom wall (3) a annular groove (52) partially closed by the internal hooking protrusion (411) and in which the rim (21) is housed, characterized in that the proximal portion (41) of the skirt further comprises a second sealing lip (412) located between the inner hooking protrusion (411) and the tamper-evident ring (42), the second lip (412) protruding radially inwardly and axially towards the tamper-evident ring (42) and resting against the frustoconical face (230) of the retaining collar. Ensemble de bouchage selon la revendication 8, caractérisé en ce que le col comporte en outre une collerette additionnelle (22), la collerette de retenue (23) se trouvant entre la collerette d'accrochage (24) et la collerette additionnelle (22), l'anneau d'inviolabilité (42) étant situé entre la collerette de retenue (23) et la collerette additionnelle (22).Stopper assembly according to claim 8, characterized in that the neck further comprises an additional flange (22), the retaining flange (23) being between the gripping flange (24) and the additional flange (22), the tamper evident ring (42) being located between the retaining flange (23) and the additional flange (22).
EP08290527A 2007-06-08 2008-06-09 Snap-fitting cap equipped with a sealing lip Withdrawn EP2014567A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0755619A FR2917071A1 (en) 2007-06-08 2007-06-08 ENCLAQUETABLE PLUG WITH SEAL LIP

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EP2014567A1 true EP2014567A1 (en) 2009-01-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104986429A (en) * 2015-07-08 2015-10-21 长沙开元仪器股份有限公司 Mineral sample gathering tank
CN106395140A (en) * 2016-12-06 2017-02-15 曼盛包装（上海）有限公司 Flat-mouth-shaped cover used for soft bag package
WO2019136506A1 (en) * 2018-01-11 2019-07-18 Joma Kunststofftechnik Gmbh Container having a sealing cap and a tear-off ring
CN110566922A (en) * 2019-09-26 2019-12-13 中国恩菲工程技术有限公司 Explosion-proof door of waste heat boiler and waste heat boiler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1476330A (en) 1965-06-28 1967-04-07 Calumet & Hecla Method and installation for pressurizing pipe sections
FR1479330A (en) * 1966-03-09 1967-05-05 Captocap Ltd Plastic cap for sealing containers
US4125201A (en) * 1976-11-25 1978-11-14 U.M.P. Plastics Limited Closure cap
DE4341936C1 (en) * 1993-12-09 1995-03-30 Stolz Heinrich Gmbh Closure for a container nozzle of a container
FR2899567A1 (en) * 2006-04-07 2007-10-12 Eaux Minerales D Evian Saeme S CLOSURE SYSTEM FOR CONTAINER

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1476330A (en) 1965-06-28 1967-04-07 Calumet & Hecla Method and installation for pressurizing pipe sections
FR1479330A (en) * 1966-03-09 1967-05-05 Captocap Ltd Plastic cap for sealing containers
US4125201A (en) * 1976-11-25 1978-11-14 U.M.P. Plastics Limited Closure cap
DE4341936C1 (en) * 1993-12-09 1995-03-30 Stolz Heinrich Gmbh Closure for a container nozzle of a container
FR2899567A1 (en) * 2006-04-07 2007-10-12 Eaux Minerales D Evian Saeme S CLOSURE SYSTEM FOR CONTAINER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104986429A (en) * 2015-07-08 2015-10-21 长沙开元仪器股份有限公司 Mineral sample gathering tank
CN106395140A (en) * 2016-12-06 2017-02-15 曼盛包装（上海）有限公司 Flat-mouth-shaped cover used for soft bag package
WO2019136506A1 (en) * 2018-01-11 2019-07-18 Joma Kunststofftechnik Gmbh Container having a sealing cap and a tear-off ring
CN110566922A (en) * 2019-09-26 2019-12-13 中国恩菲工程技术有限公司 Explosion-proof door of waste heat boiler and waste heat boiler

Also Published As

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