EP1382539A1 - Two-stage injection moulded closure - Google Patents

Two-stage injection moulded closure Download PDF

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Publication number
EP1382539A1
EP1382539A1 EP02015937A EP02015937A EP1382539A1 EP 1382539 A1 EP1382539 A1 EP 1382539A1 EP 02015937 A EP02015937 A EP 02015937A EP 02015937 A EP02015937 A EP 02015937A EP 1382539 A1 EP1382539 A1 EP 1382539A1
Authority
EP
European Patent Office
Prior art keywords
cap
rigid
cap according
neck
bottle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02015937A
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German (de)
French (fr)
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EP1382539B1 (en
Inventor
désignation de l'inventeur n'a pas encore été déposée La
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
L&M Services BV
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Filing date
Publication date
Application filed by L&M Services BV filed Critical L&M Services BV
Priority to EP02015937A priority Critical patent/EP1382539B1/en
Priority to ES02015937T priority patent/ES2286179T3/en
Priority to DE60219453T priority patent/DE60219453D1/en
Priority to AT02015937T priority patent/ATE359214T1/en
Publication of EP1382539A1 publication Critical patent/EP1382539A1/en
Application granted granted Critical
Publication of EP1382539B1 publication Critical patent/EP1382539B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/043—Closures with discharging devices other than pumps with pouring baffles, e.g. for controlling the flow
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/103—Membranes with a tearing element
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1016—Means for locking the closure in closed position
    • B65D2251/1025—Integral locking elements penetrating in an opening, e.g. a flap through a slit, a hook in an opening
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/20—Sealing means

Definitions

  • the present invention relates to a one-piece stopper for packaging of food liquids.
  • the traditional stoppers used for closing containers containing products for food use generally include a body intended for be mounted on the container neck by screwing or snap-fastening, and a cap protection connected to said body by a side hinge.
  • these plugs are made in at least two pieces separated (e.g. body and cap) with materials having properties distinct. These parts are then assembled together before assembly of the assembly on the container.
  • the present invention aims to solve these technical problems so satisfactory.
  • a plug of the preceding type characterized in that said body comprises a rigid upper part ensuring the holding and locking the cap in the sealed closed position and which is provided with a central tubular distribution element and a flexible lower part allowing the body to be fixed by elastic deformation on the container neck.
  • the cap is provided with an element hooking hook connected to the wall of the cap by means of bridges likely to be broken during the first opening and intended to be housed so irreversible in a cavity in the rigid upper part of the body.
  • said harpoon is carried by a tab made on the lower periphery of the cap.
  • the rigid upper part of the body has a periphery curvilinear raised like a spatula whose profile is complementary to that from the underside of the cap and the uppermost area of which provides connection of the hinge to allow a free movement of the cap without discontinuity of the central tubular element.
  • the cap is itself rigid and is provided a central crown intended to engage in a sealed manner in the element central tubular of the body in the closed position.
  • the tubular distribution element is provided with a veil removable shutter bearing a pull ring.
  • the rigid material of the upper part of the body is made of polypropylene homopolymer or copolymer or high polyethylene density while the flexible material of the lower part of the body consists of low density, radical or linear polyethylene.
  • the rigid upper part of the body and consisting of the upper rim of the body, the central tubular element and a peripheral reinforcement shoulder.
  • Another object of the invention is a method of manufacturing a plug having the characteristics presented above according to which the upper parts are molded and lower part of the body, the cap and the hinge in one piece by bi-injection of materials of different hardness.
  • the plug of the invention offers a one-piece structure with zones whose mechanical properties are different and adapted to the technical functions sought.
  • the plug of the invention allows both the optimization of the manufacturing process manufacturing in a single molding step with a substantial gain in productivity and obtaining a finished product of high quality and increased reliability.
  • FIGS. 1a and 1b represent views respectively in perspective and side elevation of an embodiment of the plug of the invention in the open position.
  • Figures 2a and 2b show side sectional views of the cap of Figure 1 respectively in the open and closed positions.
  • the plug shown in the figures comprises a body 1 intended to be mounted on the neck of a container (not shown) and a cap 2 connected to the body 1 by a lateral hinge 3, the structure of which is known elsewhere.
  • the body 1 comprises an upper part 1a made with a rigid material which comes in contact and cooperates with the cap 2 itself at least partially rigid and a flexible lower part 1b which is intended to be fixed on the neck of the container by elastic deformation, here by means of a snap ring 11, visible on the Figures 2a and 2b.
  • the rigid upper part 1a comprises a central tubular distribution element 10 of the product in the manner of a neck whose upper edge is curved outwards to facilitate payment.
  • the rigid upper part of the body 1 is formed here, mainly, the upper edge of said body, the tubular element 10 and a peripheral reinforcement shoulder 15 surrounding the tubular element 10 and carrying a discontinuous rib 15a for locking the cap 2 by snapping into position closing.
  • the circumference of the rim of the upper part has a profile curvilinear raised like a spatula as can be seen in FIGS. 1A and 1B.
  • the central tubular element 10 has a continuous cylindrical wall and is not necessary to make an interruption or a cut at its periphery to allow the pivoting of the cap.
  • the cap 2 is provided with a harpoon hooking element 21 intended to come irreversibly accommodate in a cavity 12 formed on the rigid upper part 1a of the body 1 between the external lateral wall of the body 1, the upper edge of the neck of the container and the tubular element 10.
  • the harpoon element 21 is connected to the wall of the cap 2 by means of bridges 21a which are liable to be broken during the first opening of the cap by the consumer.
  • the introduction of harpoon 21 in the cavity is made after the cap is removed from the mold at the time of mounting on the neck of the container and is facilitated by guiding the converging faces of the harpoon against the cavity walls 12.
  • the harpoon element 21 is carried by a tab 22 produced on the lower periphery of the cap 2 in line with the cavity 12. After the bridges 21a have broken, the harpoon 21 falls and remains trapped in the cavity 12.
  • the cap 2 has a central crown 20 intended to engage so watertight, in the closed position, in the tubular element 10 of the body 1.
  • the tubular element 10 is, for its part, provided at the bottom, with a closure veil removable 13 carrying a traction ring 13a which are both made here with the same flexible material as the lower part 1b of the body 1.
  • the veil 13 ensures both the inviolability and the sealing of the container and is positioned here below the level of the interface between the upper 1a and lower 1b parts.
  • the shoulder 15 has a constriction 15b of wedging in line with the cavity 12 which cooperates with a lower boss 23 of the cap 2.
  • the shutter element 10 is furthermore provided at the bottom with a flow regulator. 14 in the form of radial fins which break the liquid flow during dispensing of the product.
  • the cork manufacturing process uses the technique known as molding by injection and the materials injected into the mold are, according to the invention, different.
  • the area of the mold corresponding to the upper part 1a of the body 1 to realize is powered, just like the area relating to the cap 2 and the hinge, with a raw material qualified as rigid (after cooling) which is either homopolymer or copolymer polypropylene, i.e. high density polyethylene.
  • the mold area corresponding to the lower part of the body 1 is supplied, for its part, with a softer material which is low density polyethylene, radical or linear.
  • the two materials therefore participate in a bi-injection process and the two parts 1a, 1b of the body are hot welded together according to a precise joint plane so as not to form only one piece.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The one-piece stopper, for a bottle, has a body (1) to be fitted to the neck of the bottle and a cap (2) linked to the body by a lateral hinge (3). The body has a rigid upper section (1a) to give a sealed fit when the cap is closed and locked. The body has an inner tube (10) to deliver the bottle contents, and a lower flexible section (1b) which can be distorted to fit over the bottle neck. The one-piece stopper, for a bottle, has a body (1) to be fitted to the neck of the bottle and a cap (2) linked to the body by a lateral hinge (3). The body has a rigid upper section (1a) to give a sealed fit when the cap is closed and locked. The body has an inner tube (10) to deliver the bottle contents, and a lower flexible section (1b) which can be distorted to fit over the bottle neck. The cap has a locking hook (21) at a tab (22), which clicks into an opening (12) in the upper part of the body. The hook has barbs (21a) which are fractured when the cap is opened for the first time, and remain within the opening. The stopper structure is produced by a two-component injection molding process.

Description

La présente invention concerne un bouchon d'une seule pièce pour le conditionnement de liquides alimentaires.The present invention relates to a one-piece stopper for packaging of food liquids.

Les bouchons traditionnels utilisés pour l'obturation de récipients contenant des produits à usage alimentaire (huile, vinaigre...) comprennent généralement un corps destiné à être monté sur le col du récipient par vissage ou encliquetage, et un capuchon de protection raccordé audit corps par une charnière latérale.The traditional stoppers used for closing containers containing products for food use (oil, vinegar ...) generally include a body intended for be mounted on the container neck by screwing or snap-fastening, and a cap protection connected to said body by a side hinge.

Du fait que les diverses parties du bouchon assurent des fonctions techniques différentes (fixation, étanchéité, articulation...), ces bouchons sont réalisés en au moins deux pièces séparées (par exemple le corps et le capuchon) avec des matières ayant des propriétés distinctes. Ces pièces sont ensuite assemblées entre elles avant montage de l'ensemble sur le récipient.Because the various parts of the stopper perform different technical functions (fixing, sealing, articulation ...), these plugs are made in at least two pieces separated (e.g. body and cap) with materials having properties distinct. These parts are then assembled together before assembly of the assembly on the container.

Cependant, les opérations de fabrication et d'assemblage du bouchon sont pénalisantes d'un point de vue économique et, en particulier, en terme de productivité.However, the operations of manufacturing and assembling the plug are penalizing from an economic point of view and, in particular, in terms of productivity.

En outre, l'intégrité du bouchon et sa fiabilité sont globalement affaiblies par la présence de pièces indépendantes dont les liaisons sont parfois mal établies voire déficiente sur le plan mécanique .In addition, the integrity of the plug and its reliability are generally weakened by the presence of independent parts whose connections are sometimes poorly established or even mechanically deficient.

La présente invention a pour but de résoudre ces problèmes techniques de manière satisfaisante.The present invention aims to solve these technical problems so satisfactory.

Ce but est atteint, selon l'invention, au moyen d'un bouchon du type précédent caractérisé en ce que ledit corps comprend une partie supérieure rigide assurant le maintien et le verrouillage du capuchon en position de fermeture étanche et qui est pourvue d'un élément tubulaire central de distribution et une partie inférieure souple permettant la fixation du corps par déformation élastique sur le col du récipient.This object is achieved, according to the invention, by means of a plug of the preceding type. characterized in that said body comprises a rigid upper part ensuring the holding and locking the cap in the sealed closed position and which is provided with a central tubular distribution element and a flexible lower part allowing the body to be fixed by elastic deformation on the container neck.

Selon une caractéristique avantageuse le capuchon est pourvu d'un élément d'accrochage en harpon relié à la paroi du capuchon au moyen de pontets susceptibles d'être rompus lors de la première ouverture et destiné à venir se loger de manière irréversible dans une cavité ménagée sur la partie supérieure rigide du corps.According to an advantageous characteristic, the cap is provided with an element hooking hook connected to the wall of the cap by means of bridges likely to be broken during the first opening and intended to be housed so irreversible in a cavity in the rigid upper part of the body.

De préférence, ledit harpon est porté par un onglet réalisé sur le pourtour inférieur du capuchon.Preferably, said harpoon is carried by a tab made on the lower periphery of the cap.

Selon une autre caractéristique, la partie supérieure rigide du corps présente un pourtour curviligne relevé à la manière d'une spatule dont le profil est complémentaire de celui de la face inférieure du capuchon et dont la zone la plus haute assure le raccordement de la charnière pour permettre un débattement libre du capuchon sans discontinuité de l'élément tubulaire central.According to another characteristic, the rigid upper part of the body has a periphery curvilinear raised like a spatula whose profile is complementary to that from the underside of the cap and the uppermost area of which provides connection of the hinge to allow a free movement of the cap without discontinuity of the central tubular element.

Selon encore une autre caractéristique, la capuchon est lui-même rigide et est pourvu d'une couronne centrale destinée à s'engager de manière étanche dans l'élément tubulaire central du corps en position de fermeture.According to yet another characteristic, the cap is itself rigid and is provided a central crown intended to engage in a sealed manner in the element central tubular of the body in the closed position.

Selon une variante spécifique, l'élément tubulaire de distribution est muni d'un voile d'obturation amovible portant une bague de traction.According to a specific variant, the tubular distribution element is provided with a veil removable shutter bearing a pull ring.

Selon d'autres caractéristiques, la matière rigide de la partie supérieure du corps est constituée de polypropylène homopolymère ou copolymère ou de polyéthylène haute densité tandis que la matière souple de la partie inférieure du corps est constituée de polyéthylène basse densité, radicalaire ou linéaire.According to other characteristics, the rigid material of the upper part of the body is made of polypropylene homopolymer or copolymer or high polyethylene density while the flexible material of the lower part of the body consists of low density, radical or linear polyethylene.

De préférence, la partie supérieure rigide du corps et constituée du rebord supérieur du corps, de l'élément tubulaire central et d'un épaulement périphérique de renfort. Preferably, the rigid upper part of the body and consisting of the upper rim of the body, the central tubular element and a peripheral reinforcement shoulder.

Un autre objet de l'invention est un procédé de fabrication d'un bouchon présentant les caractéristiques présentées ci-dessus selon lequel on moule les parties supérieure et inférieure du corps, le capuchon et la charnière en une seule pièce par bi-injection de matières de duretés différentes.Another object of the invention is a method of manufacturing a plug having the characteristics presented above according to which the upper parts are molded and lower part of the body, the cap and the hinge in one piece by bi-injection of materials of different hardness.

Le bouchon de l'invention offre une structure monobloc avec des zones dont les propriétés mécaniques sont différentes et adaptées aux fonctions techniques recherchées.The plug of the invention offers a one-piece structure with zones whose mechanical properties are different and adapted to the technical functions sought.

Le bouchon de l'invention permet tout à la fois l'optimisation du procédé de fabrication industrielle en une seule étape de moulage avec un gain substantiel de productivité et l'obtention d'un produit fini de grande qualité et de fiabilité accrue.The plug of the invention allows both the optimization of the manufacturing process manufacturing in a single molding step with a substantial gain in productivity and obtaining a finished product of high quality and increased reliability.

L'invention sera mieux comprise à la lecture de la description qui va suivre en référence aux dessins sur lesquels les figures 1a et 1b représentent des vues respectivement en perspective et en élévation latérale d'un mode de réalisation du bouchon de l'invention en position d'ouverture.The invention will be better understood on reading the description which will follow with reference in the drawings in which FIGS. 1a and 1b represent views respectively in perspective and side elevation of an embodiment of the plug of the invention in the open position.

Les figures 2a et 2b représentent des vues latérales en coupe du bouchon de la figure 1 respectivement en positions d'ouverture et de fermeture.Figures 2a and 2b show side sectional views of the cap of Figure 1 respectively in the open and closed positions.

Le bouchon représenté sur les figures comprend un corps 1 destiné à être monté sur le col d'un récipient (non représenté) et un capuchon 2 raccordé au corps 1 par une charnière latérale 3 dont la structure est connue par ailleurs.The plug shown in the figures comprises a body 1 intended to be mounted on the neck of a container (not shown) and a cap 2 connected to the body 1 by a lateral hinge 3, the structure of which is known elsewhere.

Le corps 1 comprend une partie supérieure 1a réalisée avec une matière rigide qui vient en contact et coopère avec le capuchon 2 lui-même au moins partiellement rigide et une partie inférieure souple 1b qui est destinée à se fixer sur le col du récipient par déformation élastique, ici au moyen d'un jonc d'encliquetage 11, apparent sur les figures 2a et 2b. The body 1 comprises an upper part 1a made with a rigid material which comes in contact and cooperates with the cap 2 itself at least partially rigid and a flexible lower part 1b which is intended to be fixed on the neck of the container by elastic deformation, here by means of a snap ring 11, visible on the Figures 2a and 2b.

La partie supérieure rigide 1a comporte un élément tubulaire central 10 de distribution du produit à la manière d'un goulot dont le bord supérieur est recourbé vers l'extérieur pour faciliter le versement. La partie supérieure rigide du corps 1 est constituée ici, principalement, du rebord supérieur dudit corps, de l'élément tubulaire 10 et d'un epaulement périphérique de renfort 15 entourant l'élément tubulaire 10 et portant une nervure discontinue 15a pour le verrouillage du capuchon 2 par encliquetage en position de fermeture. Le pourtour du rebord de la partie supérieure la présente un profil curviligne relevé à la manière d'une spatule comme cela est visible sur les figures 1A et 1B.The rigid upper part 1a comprises a central tubular distribution element 10 of the product in the manner of a neck whose upper edge is curved outwards to facilitate payment. The rigid upper part of the body 1 is formed here, mainly, the upper edge of said body, the tubular element 10 and a peripheral reinforcement shoulder 15 surrounding the tubular element 10 and carrying a discontinuous rib 15a for locking the cap 2 by snapping into position closing. The circumference of the rim of the upper part has a profile curvilinear raised like a spatula as can be seen in FIGS. 1A and 1B.

Ce profil est complémenatire de celui de la face inférieure du capuchon 2 pour garantir l'étanchéité. C'est dans la zone la plus haute de ce pourtour qu'est assuré le raccordement de la charnière 3 de telle sorte que le débattement du capuchon 2 soit libre, entre ses positions de fermeture et de pleine ouverture. Dans cette configuration, l'élément tubulaire central 10 possède une paroi cylindrique continue et il n'est pas nécessaire de pratiquer une interruption ou une découpe à sa périphérie pour permettre le pivotement du capuchon.This profile is complementary to that of the underside of the cap 2 to guarantee sealing. It is in the highest area of this perimeter that the connection of the hinge 3 so that the travel of the cap 2 is free, between its closed and full open positions. In this configuration, the central tubular element 10 has a continuous cylindrical wall and is not necessary to make an interruption or a cut at its periphery to allow the pivoting of the cap.

Le capuchon 2 est pourvu d'un élément d'accrochage en harpon 21 destiné à venir se loger de manière irréversible dans une cavité 12 ménagée sur la partie supérieure rigide 1a du corps 1 entre la paroi latérale externe du corps 1, le bord supérieur du col du récipient et l'élément tubulaire 10. L'élément en harpon 21 est relié à la paroi du capuchon 2 au moyen de pontets 21a qui sont susceptibes d'être rompus lors de la première ouverture du bouchon par le consommateur. L'introduction du harpon 21 dans la cavité est effectué après le démoulage du bouchon au moment du montage sur le col du récipient et est facilité par le guidage des faces convergentes du harpon contre les parois de la cavité 12.The cap 2 is provided with a harpoon hooking element 21 intended to come irreversibly accommodate in a cavity 12 formed on the rigid upper part 1a of the body 1 between the external lateral wall of the body 1, the upper edge of the neck of the container and the tubular element 10. The harpoon element 21 is connected to the wall of the cap 2 by means of bridges 21a which are liable to be broken during the first opening of the cap by the consumer. The introduction of harpoon 21 in the cavity is made after the cap is removed from the mold at the time of mounting on the neck of the container and is facilitated by guiding the converging faces of the harpoon against the cavity walls 12.

L'élément en harpon 21 est porté par un onglet 22 réalisé sur le pourtour inférieur du capuchon 2 au droit de la cavité 12. Après rupture des pontets 21a, le harpon 21 tombe et reste emprisonne dans la cavité 12 . The harpoon element 21 is carried by a tab 22 produced on the lower periphery of the cap 2 in line with the cavity 12. After the bridges 21a have broken, the harpoon 21 falls and remains trapped in the cavity 12.

Le capuchon 2 comporte une couronne centrale 20 destinée à s'engager de manière étanche, en position de fermeture, dans l'élément tubulaire 10 du corps 1.The cap 2 has a central crown 20 intended to engage so watertight, in the closed position, in the tubular element 10 of the body 1.

L'élément tubulaire 10 est, quant à lui, muni en partie basse, d'un voile d'obturation amovible 13 portant une bague de traction 13a qui sont tous deux réalisés ici avec la même matière souple que la partie inférieure 1b du corps 1.The tubular element 10 is, for its part, provided at the bottom, with a closure veil removable 13 carrying a traction ring 13a which are both made here with the same flexible material as the lower part 1b of the body 1.

Le voile 13 assure à la fois l'inviolabilité et l'étanchéité du récipient et est positionné ici sous le niveau de l'interface entre les parties supérieure 1a et inférieure 1b.The veil 13 ensures both the inviolability and the sealing of the container and is positioned here below the level of the interface between the upper 1a and lower 1b parts.

Par ailleurs, l'épaulement 15 présente un retreint 15b de calage au droit de la cavité 12 qui coopère avec un bossage inférieure 23 du capuchon 2.Furthermore, the shoulder 15 has a constriction 15b of wedging in line with the cavity 12 which cooperates with a lower boss 23 of the cap 2.

L'élément d'obturation 10 est, en outre, pourvu, en partie basse, d'un régulateur de débit 14 sous forme d'ailettes radiales qui viennent briser le flux liquide lors de la distribution du produit.The shutter element 10 is furthermore provided at the bottom with a flow regulator. 14 in the form of radial fins which break the liquid flow during dispensing of the product.

Le procédé de fabrication du bouchon fait appel à la technique dite du moulage par injection et les matières injectées dans le moule sont, selon l'invention, de natures différentes. La zone du moule correspondant à la partie supérieure 1a du corps 1 à réaliser est alimentée, tout comme la zone relative au capuchon 2 et à la charnière, avec une matière première qualifiée de rigide (après refroidissement) qui est soit du polypropylène homopolymère ou copolymère, soit du polyéthylène haute densité. La zone du moule correspondant à la partie inférieure du corps 1 est alimentée, quant à elle, avec une matière plus souple qui est du polyéthylène basse densité, radicalaire ou linéaire.The cork manufacturing process uses the technique known as molding by injection and the materials injected into the mold are, according to the invention, different. The area of the mold corresponding to the upper part 1a of the body 1 to realize is powered, just like the area relating to the cap 2 and the hinge, with a raw material qualified as rigid (after cooling) which is either homopolymer or copolymer polypropylene, i.e. high density polyethylene. The mold area corresponding to the lower part of the body 1 is supplied, for its part, with a softer material which is low density polyethylene, radical or linear.

Les deux matières participent donc à un procédé de bi-injection et les deux parties 1a, 1b du corps sont soudées à chaud entre elles selon un plan de joint précis pour ne former qu'une seule pièce.The two materials therefore participate in a bi-injection process and the two parts 1a, 1b of the body are hot welded together according to a precise joint plane so as not to form only one piece.

Claims (11)

Bouchon d'une seule pièce comprenant un corps (1) destiné à être monté sur le col d'un récipient et un capuchon (2) raccordé audit corps (1) par une charnière latérale (3) caractérisé en ce que ledit corps (1) comprend une partie supérieure rigide (1a) assurant le maintien et le verrouillage du capuchon (2) en position de fermeture étanche et qui est pourvue d'un élément tubulaire central (10) de distribution et une partie inférieure souple (1b) permettant la fixation du corps (1) par déformation élastique sur le col du récipient.One-piece stopper comprising a body (1) intended to be mounted on the neck of a container and a cap (2) connected to said body (1) by a side hinge (3) characterized in that said body (1 ) comprises a rigid upper part (1a) ensuring the maintenance and locking of the cap (2) in the sealed closure position and which is provided with a central tubular element (10) for distribution and a flexible lower part (1b) allowing the fixing of the body (1) by elastic deformation on the neck of the container. Bouchon selon la revendication 1 caractérisé en ce que ledit capuchon (2) est pourvu d'un élément d'accrochage en harpon (21) relié à la paroi du capuchon (2) au moyen de pontets (21a) susceptibles d'être rompus lors de la première ouverture et destiné à venir se loger de manière irréversible dans une cavité (12) ménagée sur la partie supérieure rigide (1a) du corps (1).Cap according to claim 1 characterized in that said cap (2) is provided with a harpoon hooking element (21) connected to the wall of the cap (2) by means of bridges (21a) capable of being broken during of the first opening and intended to be housed irreversibly in a cavity (12) formed on the rigid upper part (1a) of the body (1). Bouchon selon la revendication 2 caractérisé en ce que ledit harpon (21) est porté par un onglet (22) réalisé sur le pourtour inférieur du capuchon (2).Cap according to claim 2 characterized in that said harpoon (21) is carried by a tab (22) produced on the lower periphery of the cap (2). Bouchon selon l'une des revendications précédentes caractérisé en ce que la partie supérieure rigide (1a) du corps (1) présente un pourtour curviligne relevé à la manière d'une spatule dont le profil est complémentaire de celui de 1a face inférieure du capuchon (2) et dont la zone la plus haute assure le raccordement de la charnière (3) pour permettre un débattement libre du capuchon (2) sans discontinuité de l'élément tubulaire central (10).Cap according to one of the preceding claims, characterized in that the rigid upper part (1a) of the body (1) has a curvilinear periphery raised in the manner of a spatula whose profile is complementary to that of the lower face of the cap ( 2) and the highest zone of which ensures the connection of the hinge (3) to allow free movement of the cap (2) without discontinuity of the central tubular element (10). Bouchon selon l'un des revendications précédentes caractérisé en ce que le capuchon (2) est lui-même rigide et est pourvu d'une couronne centrale (20) Cap according to one of the preceding claims, characterized in that the cap (2) is itself rigid and is provided with a central crown (20) destinée à s'engager de manière étanche dans l'élément tubulaire central (10) du corps (1) en position de fermeture.intended to engage in a sealed manner in the central tubular element (10) of the body (1) in the closed position. Bouchon selon l'un des revendications précédentes caractérisé en ce que l'élément tubulaire de distribution (10) est muni d'un voile d'obturation amovible (13) portant une bague de traction (13a).Cap according to one of the preceding claims, characterized in that the tubular distribution element (10) is provided with a removable closure veil (13) carrying a traction ring (13a). Bouchon selon l'un des revendications précédentes caractérisé en ce que la matière rigide de la partie supérieure (1a) du corps (1) est constituée de polypropylène homopolymère ou copolymère ou de polyéthylène haute densité.Cap according to one of the preceding claims, characterized in that the rigid material of the upper part (1a) of the body (1) consists of polypropylene homopolymer or copolymer or of high density polyethylene. Bouchon selon l'un des revendications précédentes caractérisé en ce que la matière souple de la partie inférieure (1b) du corps (1) est constituée de polyéthylène basse densité, radicalaire ou linéaire.Cap according to one of the preceding claims, characterized in that the flexible material of the lower part (1b) of the body (1) consists of low density, radical or linear polyethylene. Bouchon selon l'un des revendications précédentes caractérisé en ce que la partie supérieure rigide (1a) du corps (1) est constituée du rebord supérieur du corps ,de l'élément tubulaire central (10).et d'un epaulement périphérique de renfort (15).Cap according to one of the preceding claims, characterized in that the rigid upper part (1a) of the body (1) consists of the upper rim of the body, of the central tubular element (10). And of a peripheral reinforcement shoulder (15). Procédé de fabrication d'un bouchon selon l'une des revendications précédentes caractérisé en ce qu'on moule les parties supérieure (1a) et inférieure (1b) du corps (1), le capuchon (2) et la charnière (3) en une seule pièce par bi-injection de matières de duretés différentes.Method for manufacturing a plug according to one of the preceding claims, characterized in that the upper (1a) and lower (1b) parts of the body (1), the cap (2) and the hinge (3) are molded a single piece by bi-injection of materials of different hardness.
EP02015937A 2002-07-17 2002-07-17 Two-stage injection moulded closure Expired - Lifetime EP1382539B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02015937A EP1382539B1 (en) 2002-07-17 2002-07-17 Two-stage injection moulded closure
ES02015937T ES2286179T3 (en) 2002-07-17 2002-07-17 PLUG PLUG MANUFACTURED BY DOUBLE INJECTION.
DE60219453T DE60219453D1 (en) 2002-07-17 2002-07-17 Closure made in a two-stage injection molding process
AT02015937T ATE359214T1 (en) 2002-07-17 2002-07-17 CLOSURE MADE IN A TWO-STEP INJECTION MOLDING PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02015937A EP1382539B1 (en) 2002-07-17 2002-07-17 Two-stage injection moulded closure

Publications (2)

Publication Number Publication Date
EP1382539A1 true EP1382539A1 (en) 2004-01-21
EP1382539B1 EP1382539B1 (en) 2007-04-11

Family

ID=29762641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015937A Expired - Lifetime EP1382539B1 (en) 2002-07-17 2002-07-17 Two-stage injection moulded closure

Country Status (4)

Country Link
EP (1) EP1382539B1 (en)
AT (1) ATE359214T1 (en)
DE (1) DE60219453D1 (en)
ES (1) ES2286179T3 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2255883A1 (en) * 2006-01-26 2006-07-01 Bericap, S.A. Weir plug for use with liquid container, has articulated hood comprising of mechanically joined pieces, in which one piece has fixed portion formed with flange for guiding hood in closing movement
WO2007006892A1 (en) * 2005-07-12 2007-01-18 Bericap Closure with pouring means
EP2045192A1 (en) * 2007-09-28 2009-04-08 Obrist Closures Switzerland GmbH Flip-top dispensing closure
EP2074052A2 (en) * 2006-09-01 2009-07-01 Polytop Corporation Dispensing closure with obstructed, offset, non-linear flow profile
FR2937958A1 (en) * 2008-10-31 2010-05-07 Christian Guillot CLOSURE DEVICE WITH FIXED LID ON A POT OR THE LIKE, ASSOCIATED WITH AN INVIOLABLE TAB, AND A REFERMABLE HINGED OPENING
US20130020327A1 (en) * 2010-06-07 2013-01-24 Cj Cheiljedang Corporation Stopper and container having the same
WO2013186522A1 (en) * 2012-06-15 2013-12-19 Obrist Closures Switzerland Gmbh Flow regulator for a dispensing closure
CN106809496A (en) * 2016-05-25 2017-06-09 李红彪 Automatically rebounding open lid and the container of lid can be automatically springed open
JP2020132190A (en) * 2019-02-18 2020-08-31 三笠産業株式会社 Hinge cap

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193193A (en) * 1986-07-28 1988-02-03 Grand Ind Co Ltd Closure for a container
FR2647088A1 (en) * 1989-05-17 1990-11-23 Rical Sa POURING ASSEMBLY AND CAPPING CAP WITH SPRING HINGE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193193A (en) * 1986-07-28 1988-02-03 Grand Ind Co Ltd Closure for a container
FR2647088A1 (en) * 1989-05-17 1990-11-23 Rical Sa POURING ASSEMBLY AND CAPPING CAP WITH SPRING HINGE

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007006892A1 (en) * 2005-07-12 2007-01-18 Bericap Closure with pouring means
FR2888566A1 (en) * 2005-07-12 2007-01-19 Bericap Sarl CAP WITH MEDIUM SERVER
ES2255883A1 (en) * 2006-01-26 2006-07-01 Bericap, S.A. Weir plug for use with liquid container, has articulated hood comprising of mechanically joined pieces, in which one piece has fixed portion formed with flange for guiding hood in closing movement
EP2074052A2 (en) * 2006-09-01 2009-07-01 Polytop Corporation Dispensing closure with obstructed, offset, non-linear flow profile
EP2074052B1 (en) * 2006-09-01 2014-12-24 MWV Slatersville, LLC. Dispensing closure with obstructed, offset, non-linear flow profile
EP2045192A1 (en) * 2007-09-28 2009-04-08 Obrist Closures Switzerland GmbH Flip-top dispensing closure
FR2937958A1 (en) * 2008-10-31 2010-05-07 Christian Guillot CLOSURE DEVICE WITH FIXED LID ON A POT OR THE LIKE, ASSOCIATED WITH AN INVIOLABLE TAB, AND A REFERMABLE HINGED OPENING
US20130020327A1 (en) * 2010-06-07 2013-01-24 Cj Cheiljedang Corporation Stopper and container having the same
WO2013186522A1 (en) * 2012-06-15 2013-12-19 Obrist Closures Switzerland Gmbh Flow regulator for a dispensing closure
CN106809496A (en) * 2016-05-25 2017-06-09 李红彪 Automatically rebounding open lid and the container of lid can be automatically springed open
JP2020132190A (en) * 2019-02-18 2020-08-31 三笠産業株式会社 Hinge cap

Also Published As

Publication number Publication date
ATE359214T1 (en) 2007-05-15
ES2286179T3 (en) 2007-12-01
EP1382539B1 (en) 2007-04-11
DE60219453D1 (en) 2007-05-24

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