EP1940700B1 - Closing assembly for container - Google Patents

Closing assembly for container Download PDF

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Publication number
EP1940700B1
EP1940700B1 EP06820210A EP06820210A EP1940700B1 EP 1940700 B1 EP1940700 B1 EP 1940700B1 EP 06820210 A EP06820210 A EP 06820210A EP 06820210 A EP06820210 A EP 06820210A EP 1940700 B1 EP1940700 B1 EP 1940700B1
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EP
European Patent Office
Prior art keywords
base
cap
opening
plug
contact
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.)
Not-in-force
Application number
EP06820210A
Other languages
German (de)
French (fr)
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EP1940700A1 (en
Inventor
Arnaud Salomon
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Patent Co
Original Assignee
Patent Co
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Publication date
Application filed by Patent Co filed Critical Patent Co
Publication of EP1940700A1 publication Critical patent/EP1940700A1/en
Application granted granted Critical
Publication of EP1940700B1 publication Critical patent/EP1940700B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/08—Threaded or like closure members secured by rotation; Bushes therefor
    • 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
    • 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
    • B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/583—Opening or contents-removing devices added or incorporated during package manufacture the non-integral spout having an elongate cross-sectional shape, e.g. canoe or boat shaped

Definitions

  • the present invention relates generally to the field of packaging for consumables whose conservation requires a certain level of asepsis of the packaging.
  • a base comprises an opening through the base to make a passage between the inside and outside of the package and thus allow the distribution of the product contained in the package.
  • the base is adapted to receive a closure plug of the opening to make sealing the opening when the cap is assembled with the base.
  • the cap and the base are manufactured and sanitized and inserted into a sealed overpack 10 to be stored and transported to the product packaging site.
  • the cap and the base of the hygienic overwrap extract the cap and the base of the hygienic overwrap and then assemble the base and the packaging, fill the packaging of the product to be preserved and finally permanently closes the packaging containing this product .
  • the assembly operations of the package with the base and the cap and the filling operation of the package are performed in a sanitized environment for example under a flow of purified laminar air.
  • a closure assembly for a packaging of the type previously defined is for example presented in the patent document WO03 / 066461 .
  • This set of the prior art which is represented on the figure 2 comprises a base 1 whose opening 2 extends from the base of the base to form an elongated tubular portion 3 for pouring the product.
  • the plug 4 has an internal flange of complementary shape of the upper internal flange 5 of the opening 2 thus allowing a sealing assembly between the plug and the base at the end of the elongated tubular portion 3.
  • Such a closure assembly is difficult to sterilize online because it has many folds, hollow areas may contain impurities. Only sterilization techniques by ionization or chemical bath can achieve acceptable sterilization but these techniques have drawbacks and may leave traces on the cap and the base (traces of radioactivity or chemical traces).
  • the present invention aims to provide a closure assembly for a package facilitating the implementation of an online sterilization of the assembly.
  • the assembly of the invention is essentially characterized in that the base comprises a female thread located inside the opening and in that the plug has a complementary male thread of said female thread thus making it possible to screw a portion of the plug into the opening of the base, the plug further comprising a closing portion such that once the plug is assembled by screwing with the base, the sealing portion is sealed with at least one region of the opening between said female thread and said contact face of the base.
  • contact face with the product of the base designates a surface of the base on which opens the opening is preferentially registering in a plane.
  • a preferably flat surface of the base may be for example a flat ring 9 in the center of which opens the opening, as is for example the case on the figure 2 .
  • the thread of the base is a female thread located in the opening avoids the presence of a thread on the outside of the base, and thus prevents the user from entering in contact with a thread during the mouthing of the base.
  • the outer zone of the base can therefore be smooth and free of material retention zones (in this case a male thread formed on the base would constitute a material retention zone), which improves the hygienic quality. from the outside of the base and the comfort of the user during the mouthing of the base.
  • the invention it is possible to perform in-line sterilization by pulsed light by simply illuminating the contact faces of the cap and the base which are preferably flat faces parallel to each other in order to minimize the shadows during sterilization.
  • the whole of the invention is therefore advantageous from a hygienic point of view and also economical because the sterilization operation can be accelerated without affecting the quality of the sterilization.
  • the contact face of the base has a roughness defect of less than 100 microns and preferably less than 10 microns. This feature improves sterilization quality.
  • the contact faces of the plug and the base are spaced from each other by a distance of at least 1 millimeter and plus 15 millimeters.
  • the plug has an elongated tubular shape and has at one of its ends a product-contact face, this face of the plug being adapted so that, when the plug is assembled by screwing with the base and closes the opening, the contact face of the cap is positioned closer to the female thread of the base that the contact surface with the product of the base.
  • This embodiment makes it possible to have a relatively short plug with respect to the case where the plug would be flush with the contact face of the base. This embodiment therefore reduces the amount of material required for the manufacture of the plug which is economical.
  • the fact that the end face of the plug is located at a distance from the contact face with the product of the base implies that it is necessary to sterilize an internal zone of the opening located between the contact faces of the plug and the base. A compromise must therefore be found between the maximum acceptable length of the stopper and the maximum area of the inner zone of the opening which is accepted to be sterilized.
  • the invention therefore has the advantage of allowing a packaging manufacturer to choose these two parameters (length of cap and maximum opening area to be sterilized) depending on the type of product that he wishes to pack and depending on the quality. desired sterilization. Indeed, by choosing the distance between the contact face of the plug and the contact face of the base is thus simply fixed plug and surface length parameters, the opening to come into contact with the product.
  • the assembly comprises a flexible packaging in the form of a pocket and that the base is assembled with this packaging to allow sealing.
  • the packaging includes films and that these films are assembled by welding with the first part of the base such that said tapered portions of the first part of the base go tapered to join a plane parallel to the films of the package.
  • the cap and the base are in different materials from one another.
  • the difference in material between the base and the plug is advantageous because it is thus possible to confer certain properties to the plug and some other properties to the base.
  • the material constituting the plug has a hardness greater than the hardness of the material constituting the base (thus preventing the plug from deteriorating by crushing against the base) and / or that the constituent material the base has a melting temperature lower than the melting temperature of the material constituting the cap (thus avoiding a risk of welding the base with the cap especially during assembly of the package on the base).
  • the constituent material of the plug is HDPE (that is to say high density polyethylene) or PP (that is to say polypropylene) and that the constituent material the base is HDPE or LDPE (ie low density polyethylene).
  • the base prefferably has a female thread located inside the opening and for the stopper to have a male thread complementary to said female thread, thus making it possible to thread a portion of the stopper into the opening of the opening. base until the plug and the base are assembled with said respective contact faces, the cap and the substantially coplanar base.
  • the outer zone of the base can be thread-free and can be smooth which facilitates access during cleaning and improves ergonomics of the base in the case where the base is intended to be put in the mouth (for example when the base is mounted on a gourd).
  • cap and the base have axial abutment areas to limit the depression of the plug in the opening of the base, beyond a sealing position.
  • the invention relates to the field of assemblies for the closure of packaging and for the packaging of consumable product.
  • the figure 1 represents a known packaging for example for the packaging of liquid or pasty food products such as compote or mayonnaise.
  • This type of packaging 7 is formed of two flexible films facing each other and welded generally by thermo welding or ultrasonic welding or bonding at their respective peripheries.
  • the product to be preserved is introduced into the hollow zone thus defined between the films thanks to the peripheral welds 15.
  • the base 1 on which the plug 4 is assembled is positioned in a passage reserved for the periphery of the films.
  • Each of the films is welded with a first part of the base, at the place of the reserved passage, allowing on the one hand to bind the base to the package and on the other hand to define a rigid zone for opening and closing the package and for dispensing product or filling the package.
  • the first part 6 of the base 1 which is adapted to be assembled with the films 7 has a section transverse eye-shaped whose circumference is tapered into two diametrically opposite zones. These tapered zones allow a progressive separation of the films at the location of the first part 6 of the base 1 which avoids the folds of the films facilitating all the welding of the films with the base 1.
  • the figure 4 is a sectional view of the assembly of the invention with a partial view of the package 7 before its assembly with the first part 6 of the base 1.
  • the base 1 has a food contact face 9 intended to be put face to face with the inside of the package 7.
  • a cylindrical opening 2 is formed through the base 1 and extends along an axis of longitudinal opening 17. This opening 2 is arranged so that the longitudinal axis 17 is substantially perpendicular to the food contact face 9 and the opening 2 has one end emerging on the face 9 and another open end opposite the face 9 on the other side of the base.
  • the plug 4 which extends through the opening 2 has a food contact face 12 formed at one end and arranged to face the inside of the package and with the packaged product.
  • This contact face 12 of the plug is provided to be parallel to the contact face of the base 9 when the plug .4 is assembled with the base as is the case on the figures 4 and 6 .
  • this contact face of the plug, as well as the closing portion of the plug 10 are then placed inside the opening between the female thread 13 and the face contact 9 of the base and at a distance from these.
  • This distance from the closure portion 10 of the plug with respect to the female thread 13 and to the contact face of the base 9 makes it possible to separate the sealing functions (located at the level of the closing portion 10), screwing the plug and the base (located on a portion 8 of the non-communicating base with the packaged product) and the sanitized area (located at the contact faces of the plug 12 and the base 9).
  • each film is positioned vis-à-vis a face of the first portion 6 of the base so that the tapered portions 16a and 16b of the first part of the base go tapering to a parallel plane (parallel and adjacent) to the packaging films 7.
  • films 7, which are also sanitized, are welded or glued along their peripheries.
  • the figure 5 represents the plug 4 of the invention before being assembled with the base 1 of the invention.
  • the plug 4 is a first one-piece piece of plastic and the base 1 forms a second piece monobloc also plastic, these plastics being of different natures to avoid the risk of welding / bonding between the base and the plug.
  • the cap has a hollow cylindrical tubular portion over a major portion of its length which makes it possible to reduce the quantity of injected material to be cooled, thus reducing the capping release time and its cost of production.
  • This cylindrical tubular portion of the plug is completely closed at one of its ends by the food contact face 12 perpendicular to the longitudinal axis 17 of the plug.
  • the closure portion 10 of the plug is formed at the end of the cylindrical tubular portion of the plug which carries the contact face 12.
  • This sealing portion is ultimately an annular surface having the longitudinal axis of the main axis of symmetry. 17.
  • the zone of the opening 2 of the base 1 with which the closing portion 10 of the cap is sealed is constituted by a narrowing of the opening, this narrowing being preferably carried out near the female thread.
  • This area of the narrowed opening is formed by a cylindrical bore of smaller diameter than the remainder of the opening.
  • the closure portion 10 of the plug has a complementary shape of the opening area such that when the plug is assembled with the base, the closing portion 10 is then clamped only at its end, in the area of the opening 2 to allow sealing exclusively localized at the periphery of the closing portion 10.
  • the sealing zone (that is to say the area of contact between the sealing portion 10 and the opening 2) is of reduced surface which facilitates the screw unscrewing efforts which must not exceed 10 N * m-1.
  • An annular thread 14 is formed on the periphery of the tubular portion of the plug so as to screw the plug with a complementary thread 13 disposed inside the opening 2 of the base 1. These threads 13, 14 make it possible to force the plug in the opening 2 until there is a seal and that the closing portion is pressed tightly in the opening.
  • the fitting is intended to create an aseptic barrier inside the opening.
  • the threads allow to screw or unscrew the cap of the base between 1 ⁇ 4 and 5 revolutions maximum, for this we can predict that the threads comprise several spirals.
  • the cap has an outer gripping portion 18 allowing its handling especially when the user wishes to remove the cap to pour the product contained in the package.
  • a tamperproof ring 19 is integrated in the plug 4 to clip into a complementary external groove 20 formed on the base 1.
  • This ring is connected to the cap by pins of low mechanical strength and has pins 21 which once engaged in the groove 20 prevent axial displacements of the ring 19 along the axis 17.
  • This system makes it possible to indicate to the user that the package has already been opened.
  • the invention makes it possible to improve the storage conditions of the consumable product by ensuring better asepsis of the base and the plug.
  • the invention can be used for the packaging of dough or a liquid food or cosmetic or pharmaceutical / medical.

Abstract

The invention concerns a closing assembly for flexible container comprising a base (1) and a cap: the base (1) having first and second parts, the first part of the base (6) being adapted to be assembled with a flexible container, said first part including therefor two tapered peripheral portions; and the cap (4) being adapted to be assembled with the second part of the base (1) and to close an opening (2) provided in said base (1), said opening (2) of the base (1) emerging on one surface of the base called contact surface (9) with said edible product. The base (1) comprises a female thread located inside the opening (2), the cap further including a closing portion such that once the cap (4) is assembled by screwing with the base (1), the closing portion is mounted tightly with at least one zone of the opening (11) located between said female thread and said contact surface (9) of the base (1).

Description

La présente invention concerne, de façon générale, le domaine des emballages pour produits consommables dont la conservation nécessite un certain niveau d'asepsie de l'emballage.The present invention relates generally to the field of packaging for consumables whose conservation requires a certain level of asepsis of the packaging.

Plus particulièrement, l'invention concerne un ensemble de bouchage pour emballage souple destiné à contenir un produit consommable, l'ensemble comportant une embase et un bouchon :

  • ➢ l'embase ayant des première et seconde parties, la première partie de l'embase étant adaptée pour être assemblée avec un emballage souple, cette première partie comportant pour cela deux portions périphériques effilées et ;
  • ➢ le bouchon étant adapté pour être assemblé avec la deuxième partie de l'embase et pour obturer une ouverture pratiquée dans cette embase, cette ouverture de l'embase débouchant sur une face de l'embase dite face de contact avec ledit produit consommable .
More particularly, the invention relates to a closure assembly for flexible packaging for containing a consumable product, the assembly comprising a base and a plug:
  • The base having first and second parts, the first part of the base being adapted to be assembled with a flexible package, this first part comprising two tapered peripheral portions and;
  • ➢ the plug being adapted to be assembled with the second portion of the base and to close an opening in said base, this opening of the base opening on a face of the base said contact face with said consumable product.

Il est connu notamment dans le domaine des emballages souples ou semi rigides d'avoir des embases en matière plastique rigide adaptées pour être assemblées avec l'emballage. Une embase comporte une ouverture traversant l'embase afin de réaliser un passage entre l'intérieur et l'extérieur de l'emballage et permettre ainsi la distribution du produit contenu dans l'emballage. L'embase est adaptée pour recevoir un bouchon d'obturation de l'ouverture afin de rendre étanche l'ouverture lorsque le bouchon est assemblé avec l'embase.It is known in particular in the field of flexible or semi-rigid packaging to have rigid plastic bases adapted to be assembled with the packaging. A base comprises an opening through the base to make a passage between the inside and outside of the package and thus allow the distribution of the product contained in the package. The base is adapted to receive a closure plug of the opening to make sealing the opening when the cap is assembled with the base.

Pour éviter les risques de dégradation du produit contenu dans l'emballage, et pour des questions d'hygiène 5 il est nécessaire d'aseptiser toutes les parties de l'emballage, de l'embase et du bouchon qui peuvent entrer en contact avec ce produit.To avoid the risk of degradation of the product contained in the packaging, and for hygiene reasons, it is necessary to sanitize all the parts of the packaging, the base and the stopper that can come into contact with this product. product.

Pour cela, le bouchon et l'embase sont fabriqués puis aseptisés et insérés dans un suremballage étanche 10 afin d'être stockés et transportés vers le lieu de conditionnement de produit. Sur le lieu de conditionnement on extrait alors le bouchon et l'embase du suremballage de protection hygiénique puis on assemble l'embase et l'emballage, on remplit l'emballage du produit à conserver et enfin on obture définitivement l'emballage contenant ce produit.For this, the cap and the base are manufactured and sanitized and inserted into a sealed overpack 10 to be stored and transported to the product packaging site. At the place of packaging then extract the cap and the base of the hygienic overwrap and then assemble the base and the packaging, fill the packaging of the product to be preserved and finally permanently closes the packaging containing this product .

Pour éviter les risques de contamination du produit, les opérations d'assemblage de l'emballage avec l'embase et le bouchon ainsi que l'opération de 20 remplissage de l'emballage sont réalisées dans un environnement aseptisé par exemple sous un flux d'air laminaire purifié. Le document brevet WO99/02423 décrit To avoid the risk of contamination of the product, the assembly operations of the package with the base and the cap and the filling operation of the package are performed in a sanitized environment for example under a flow of purified laminar air. The patent document WO99 / 02423 described

un ensemble de bouchage de l'art antérieur.a closure assembly of the prior art.

Un ensemble de bouchage pour un emballage du type 25 précédemment défini est par exemple présenté dans le document brevet WO03/066461 . Cet ensemble de l'art antérieur qui est représenté sur la figure 2 comporte une embase 1 dont l'ouverture 2 s'étend depuis la base de l'embase jusqu'à former une portion tubulaire allongée 3 permettant de verser le produit. Le bouchon 4 possède une collerette interne de forme complémentaire du rebord interne supérieur 5 de l'ouverture 2 permettant ainsi un assemblage étanche entre le bouchon et l'embase à l'extrémité de la portion tubulaire allongée 3.A closure assembly for a packaging of the type previously defined is for example presented in the patent document WO03 / 066461 . This set of the prior art which is represented on the figure 2 comprises a base 1 whose opening 2 extends from the base of the base to form an elongated tubular portion 3 for pouring the product. The plug 4 has an internal flange of complementary shape of the upper internal flange 5 of the opening 2 thus allowing a sealing assembly between the plug and the base at the end of the elongated tubular portion 3.

Un tel ensemble de bouchage est difficilement stérilisable en ligne car il comporté de nombreux replis, zones creuses pouvant contenir des impuretés. Seules des techniques de stérilisation par ionisation ou par bain chimique permettent d'obtenir une stérilisation acceptable mais ces techniques présentent des inconvénients et peuvent laisser des traces sur le bouchon et l'embase (traces de radioactivité ou traces chimiques).Such a closure assembly is difficult to sterilize online because it has many folds, hollow areas may contain impurities. Only sterilization techniques by ionization or chemical bath can achieve acceptable sterilization but these techniques have drawbacks and may leave traces on the cap and the base (traces of radioactivity or chemical traces).

Dans ce contexte, la présente invention a pour but de proposer un ensemble de bouchage pour un emballage facilitant la mise en oeuvre d'une stérilisation en ligne de l'ensemble.In this context, the present invention aims to provide a closure assembly for a package facilitating the implementation of an online sterilization of the assembly.

A cette fin, l'ensemble de l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule défini précédemment, est essentiellement caractérisé en ce que l'embase comporte un filetage femelle situé à l'intérieur de l'ouverture et en ce que le bouchon comporte un filetage mâle complémentaire dudit filetage femelle permettant ainsi de visser une portion du bouchon dans l'ouverture de l'embase, le bouchon comportant en outre une portion d'obturation telle qu'une fois le bouchon assemblé par vissage avec l'embase, la portion d'obturation est montée étanche avec au moins une zone de l'ouverture située entre ledit filetage femelle et ladite face de contact de l'embase.To this end, the assembly of the invention, moreover in conformity with the generic definition given in the preamble defined above, is essentially characterized in that the base comprises a female thread located inside the opening and in that the plug has a complementary male thread of said female thread thus making it possible to screw a portion of the plug into the opening of the base, the plug further comprising a closing portion such that once the plug is assembled by screwing with the base, the sealing portion is sealed with at least one region of the opening between said female thread and said contact face of the base.

Pour la compréhension de la présente invention, il est à noter que le terme face de contact avec le produit de l'embase, désigne une surface de l'embase sur laquelle débouche l'ouverture est s'inscrivant préférentiellement dans un plan. Une telle surface préférentiellement plane de l'embase peut être par exemple une couronne plane 9 au centre de laquelle débouche l'ouverture, comme c'est par exemple le cas sur la figure 2.For the understanding of the present invention, it should be noted that the term contact face with the product of the base, designates a surface of the base on which opens the opening is preferentially registering in a plane. Such a preferably flat surface of the base may be for example a flat ring 9 in the center of which opens the opening, as is for example the case on the figure 2 .

Le fait que le filetage de l'embase soit un filetage femelle situé dans l'ouverture permet d'éviter la présence d'un filetage à l'extérieur de l'embase, et donc permet d'éviter à l'utilisateur d'entrer en contact avec un filetage lors de la mise en bouche de l'embase. La zone extérieure de l'embase peut donc être lisse et exempte de zones de rétention de matières (en l'occurrence un filetage mâle formé sur l'embase constituerait une zone de rétention de matière), ce qui permet d'améliorer la qualité hygiénique de l'extérieur de l'embase ainsi que le confort de l'utilisateur lors de la mise en bouche de l'embase.The fact that the thread of the base is a female thread located in the opening avoids the presence of a thread on the outside of the base, and thus prevents the user from entering in contact with a thread during the mouthing of the base. The outer zone of the base can therefore be smooth and free of material retention zones (in this case a male thread formed on the base would constitute a material retention zone), which improves the hygienic quality. from the outside of the base and the comfort of the user during the mouthing of the base.

Le fait que la zone de l'ouverture où se fait l'étanchéité avec la portion d'obturation du bouchon soit située dans l'ouverture entre la face de contact de l'embase et le filetage femelle de l'embase est avantageux car :

  • d'une part les filetages du bouchon et de l'embase sont isolés du produit consommable qui se trouve du côté de la face de contact de l'embase, ce produit ne pouvant donc pas s'accumuler dans les filetages tant que le bouchon et l'embase sont assemblés de manière étanche ;
  • d'autre part les filetages étant normalement isolés du produit consommable, du moins tant que le bouchon et l'embase sont assemblés, il n'est donc pas impératif de stériliser ces filetages qui ne font pas partie des surfaces de contact avec le produit consommable emballé. Il en résulte donc un gain de temps lors de l'opération de stérilisation.
The fact that the zone of the opening in which the seal is sealed with the closure portion of the plug is located in the opening between the contact face of the base and the female thread of the base is advantageous because:
  • on the one hand the threads of the plug and the base are isolated from the consumable product which is on the side of the contact face of the base, this product can not therefore accumulate in the threads as the plug and the base are assembled tightly;
  • on the other hand the threads being normally isolated from the consumable product, at least as long as the plug and the base are assembled, it is therefore not imperative to sterilize those threads that are not part of the contact surfaces with the product packaged consumable. This results in a saving of time during the sterilization operation.

Grâce à l'invention, il est possible d'effectuer une stérilisation en ligne par lumière pulsée en éclairant simplement les faces de contact du bouchon et de l'embase qui sont préférentiellement des faces planes parallèles entre elles afin de minimiser les zones d'ombres lors de la stérilisation.Thanks to the invention, it is possible to perform in-line sterilization by pulsed light by simply illuminating the contact faces of the cap and the base which are preferably flat faces parallel to each other in order to minimize the shadows during sterilization.

L'ensemble de l'invention est donc avantageux d'un point de vu hygiénique et également économique car l'opération de stérilisation peut être accélérée sans nuire à la qualité de la stérilisation.The whole of the invention is therefore advantageous from a hygienic point of view and also economical because the sterilization operation can be accelerated without affecting the quality of the sterilization.

On peut également faire en sorte que la face de contact de l'embase possède un défaut de rugosité inférieur à 100 µm et préférentiellement inférieur à 10 µm. Cette caractéristique permet d'améliorer qualité de stérilisation.It can also be ensured that the contact face of the base has a roughness defect of less than 100 microns and preferably less than 10 microns. This feature improves sterilization quality.

On peut également faire en sorte qu'une fois le bouchon assemblé avec l'embase, les faces de contact du bouchon et de l'embase soient éloignées l'une de l'autre d'une distance comprise entre au moins 1 millimètre et au plus 15 millimètres.It can also be ensured that once the plug is assembled with the base, the contact faces of the plug and the base are spaced from each other by a distance of at least 1 millimeter and plus 15 millimeters.

On peut également faire en sorte que le bouchon possède une forme tubulaire allongée et comporte à l'une de ses extrémités une face de contact avec le produit, cette face du bouchon étant adaptée pour que, lorsque le bouchon est assemblé par vissage avec l'embase et en obture l'ouverture, la face de contact du bouchon soit positionnée à plus grande proximité du filetage femelle de l'embase que de la face de contact avec le produit de l'embase.It can also be ensured that the plug has an elongated tubular shape and has at one of its ends a product-contact face, this face of the plug being adapted so that, when the plug is assembled by screwing with the base and closes the opening, the contact face of the cap is positioned closer to the female thread of the base that the contact surface with the product of the base.

Ce mode de réalisation permet d'avoir un bouchon relativement court par rapport au cas où le bouchon viendrait affleurer la face de contact de l'embase. Ce mode de réalisation permet donc de réduire la quantité de matière nécessaire à la fabrication du bouchon ce qui est économique. Toutefois il est à noter que dans ce mode de réalisation le fait que la face d'extrémité du bouchon soit située à distance de la face de contact avec le produit de l'embase implique que l'on doive stériliser une zone interne de l'ouverture située entre les faces de contact du bouchon et de l'embase. Un compromis est donc à trouver entre la longueur maximale acceptable du bouchon et la surface maximale de la zone interne de l'ouverture que l'on accepte de devoir stériliser.This embodiment makes it possible to have a relatively short plug with respect to the case where the plug would be flush with the contact face of the base. This embodiment therefore reduces the amount of material required for the manufacture of the plug which is economical. However, it should be noted that in this embodiment the fact that the end face of the plug is located at a distance from the contact face with the product of the base implies that it is necessary to sterilize an internal zone of the opening located between the contact faces of the plug and the base. A compromise must therefore be found between the maximum acceptable length of the stopper and the maximum area of the inner zone of the opening which is accepted to be sterilized.

L'invention a donc pour avantage de permettre à un fabricant d'emballage de choisir ces deux paramètres (longueur de bouchon et surface d'ouverture maximale à stériliser) en fonction du type de produit qu'il souhaite emballer et en fonction de la qualité de stérilisation souhaitée. En effet en choisissant-la distance entre la face de contact du bouchon et la face de contact de l'embase on fixe ainsi simplement les paramètres de longueur de bouchon et de surface de,l'ouverture devant entrer en contact avec le produit.The invention therefore has the advantage of allowing a packaging manufacturer to choose these two parameters (length of cap and maximum opening area to be sterilized) depending on the type of product that he wishes to pack and depending on the quality. desired sterilization. Indeed, by choosing the distance between the contact face of the plug and the contact face of the base is thus simply fixed plug and surface length parameters, the opening to come into contact with the product.

On peut également faire en sorte que l'ensemble comprenne un emballage souple ayant la forme d'une poche et que l'embase soit assemblée avec cet emballage pour en permettre l'obturation.It can also be ensured that the assembly comprises a flexible packaging in the form of a pocket and that the base is assembled with this packaging to allow sealing.

On peut également faire en sorte que l'emballage comprenne des films et que ces films soient assemblés par soudage avec la première partie de l'embase de telle manière que lesdites portions effilées de la première partie de l'embase aillent en s'effilant jusqu'à rejoindre un plan parallèle aux films de l'emballage.We can also make sure that the packaging includes films and that these films are assembled by welding with the first part of the base such that said tapered portions of the first part of the base go tapered to join a plane parallel to the films of the package.

On peut également faire en sorte que le bouchon et l'embase soient dans des matériaux différents l'un de l'autre. La différence de matériau entre l'embase et le bouchon est avantageuse car il est ainsi possible de conférer certaines propriétés au bouchon et certaines autres propriétés à l'embase. Par exemple on peut faire en sorte que le matériau constitutif du bouchon ait une dureté supérieure à la dureté du matériau constitutif de l'embase (évitant ainsi que le bouchon ne se détériore par écrasement contre l'embase) et/ou que le matériau constitutif de l'embase ait une température de fusion inférieure à la température de fusion du matériau constitutif du bouchon (évitant ainsi un risque de soudure de l'embase avec le bouchon notamment lors de l'assemblage de l'emballage sur l'embase).It can also ensure that the cap and the base are in different materials from one another. The difference in material between the base and the plug is advantageous because it is thus possible to confer certain properties to the plug and some other properties to the base. For example, it is possible to ensure that the material constituting the plug has a hardness greater than the hardness of the material constituting the base (thus preventing the plug from deteriorating by crushing against the base) and / or that the constituent material the base has a melting temperature lower than the melting temperature of the material constituting the cap (thus avoiding a risk of welding the base with the cap especially during assembly of the package on the base).

Dans ces conditions, on peut faire en sorte que le matériau constitutif du bouchon soit du PEHD (c'est-à-dire du polyéthylène haute densité) ou du PP (c'est-à-dire du polypropylène) et que le matériau constitutif de l'embase soit du PEHD ou du PEBD (c'est à dire du polyéthylène basse densité).Under these conditions, it can be ensured that the constituent material of the plug is HDPE (that is to say high density polyethylene) or PP (that is to say polypropylene) and that the constituent material the base is HDPE or LDPE (ie low density polyethylene).

On peut également faire en sorte que l'embase comporte un filetage femelle situé à l'intérieur de l'ouverture et que le bouchon comporte un filetage mâle complémentaire dudit filetage femelle permettant ainsi de fileter une portion du bouchon dans l'ouverture de l'embase jusqu'à ce que le bouchon et l'embase soient assemblés avec lesdites faces de contact respectives, du bouchon et de l'embase sensiblement coplanaires.It is also possible for the base to have a female thread located inside the opening and for the stopper to have a male thread complementary to said female thread, thus making it possible to thread a portion of the stopper into the opening of the opening. base until the plug and the base are assembled with said respective contact faces, the cap and the substantially coplanar base.

Grâce au positionnement du filetage entre le bouchon et l'embase à l'intérieur de l'ouverture, la zone extérieure de l'embase peut être exempte de filetage et peut être lisse ce qui en facilite l'accès lors du nettoyage et améliore l'ergonomie de l'embase dans le cas où l'embase est destinée à être mise en bouche (par exemple lorsque l'embase est montée sur une gourde).Thanks to the positioning of the thread between the plug and the base inside the opening, the outer zone of the base can be thread-free and can be smooth which facilitates access during cleaning and improves ergonomics of the base in the case where the base is intended to be put in the mouth (for example when the base is mounted on a gourd).

On peut également faire en sorte que le bouchon et l'embase possèdent des zones de butées axiales pour limiter l'enfoncement du bouchon dans l'ouverture de l'embase,au delà d'une position d'étanchéité.It can also be ensured that the cap and the base have axial abutment areas to limit the depression of the plug in the opening of the base, beyond a sealing position.

D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels:

  • la figure 1 représente une gourde de l'art antérieur dotée d'une embase assemblée sur un emballage souple en forme de poche et d'un bouchon assemblé sur l'embase ;
  • la figure 2 représente un ensemble de l'art antérieur tel que présenté dans le document brevet WO 03/066461 ;
  • la figure 3 représente un ensemble de l'art antérieur composé d'une embase et d'un bouchon adapté pour être assemblé sur cette embase ;
  • la figure 4 représente une vue de dessous en perspective de l'ensemble de invention avant d'être assemblé avec l'emballage ;
  • la figure 5 représente une vue en coupe de l'ensemble de l'invention avec l'embase et le bouchon désassemblés ;
  • la figure 6 représente une vue en coupe de l'ensemble de l'invention avec l'embase et le bouchon assemblés.
Other characteristics and advantages of the invention will emerge clearly from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the appended drawings, in which:
  • the figure 1 represents a gourd of the prior art with a base assembled on a flexible pouch-shaped package and a plug assembled on the base;
  • the figure 2 represents a set of the prior art as presented in the patent document WO 03/066461 ;
  • the figure 3 represents a set of the prior art composed of a base and a plug adapted to be assembled on this base;
  • the figure 4 represents a perspective bottom view of the invention assembly before being assembled with the package;
  • the figure 5 is a sectional view of the assembly of the invention with the base and the disassembled cap;
  • the figure 6 represents a sectional view of the assembly of the invention with the base and the plug assembled.

Comme annoncé précédemment, l'invention concerne le domaine des ensembles pour le bouchage d'emballages et pour le conditionnement de produit consommable.As previously announced, the invention relates to the field of assemblies for the closure of packaging and for the packaging of consumable product.

La figure 1 représente un emballage connu par exemple pour l'emballage de liquide ou produits pâteux alimentaires tels que de la compote ou de la mayonnaise.The figure 1 represents a known packaging for example for the packaging of liquid or pasty food products such as compote or mayonnaise.

Ce type d'emballage 7 est formé de deux films souples mis en vis-à-vis l'un par rapport à l'autre et soudés généralement par thermo soudage ou soudure ultrason ou collage au niveau de leurs périphéries 15 respectives.This type of packaging 7 is formed of two flexible films facing each other and welded generally by thermo welding or ultrasonic welding or bonding at their respective peripheries.

Le produit à conserver est introduit dans la zone creuse ainsi définie entre les films grâce aux soudures périphériques 15.The product to be preserved is introduced into the hollow zone thus defined between the films thanks to the peripheral welds 15.

L'embase 1 sur laquelle est assemblée le bouchon 4 est positionnée dans un passage réservé à la périphérie des films. Chacun des films est soudé avec une première partie de l'embase, à l'endroit du passage réservé, permettant d'une part de lier l'embase à l'emballage et d'autre part de définir une zone rigide pour l'ouverture et la fermeture de l'emballage et pour la distribution de produit ou le remplissage de l'emballage.The base 1 on which the plug 4 is assembled is positioned in a passage reserved for the periphery of the films. Each of the films is welded with a first part of the base, at the place of the reserved passage, allowing on the one hand to bind the base to the package and on the other hand to define a rigid zone for opening and closing the package and for dispensing product or filling the package.

Comme le montre la figure 3 qui représente également une embase et un bouchon de l'art antérieur, la première partie 6 de l'embase 1 qui est adaptée pour être assemblée avec les films 7 possède une section transversale en forme d'oeil dont le pourtour est effilé en deux zones diamétralement opposées. Ces zones effilées permettent un écartement progressif des films à l'endroit de la première partie 6 de l'embase 1 ce qui évite les pliures des films facilitant d'autant la soudure des films avec l'embase 1.As shown in figure 3 which also represents a base and a plug of the prior art, the first part 6 of the base 1 which is adapted to be assembled with the films 7 has a section transverse eye-shaped whose circumference is tapered into two diametrically opposite zones. These tapered zones allow a progressive separation of the films at the location of the first part 6 of the base 1 which avoids the folds of the films facilitating all the welding of the films with the base 1.

La figure 4 est une vue en coupe de l'ensemble de l'invention avec une vue partielle de l'emballage 7 avant son assemblage avec la première partie 6 de l'embase 1.The figure 4 is a sectional view of the assembly of the invention with a partial view of the package 7 before its assembly with the first part 6 of the base 1.

L'embase 1 possède une face de contact alimentaire 9 destinée à être mise en vis-à-vis avec l'intérieur de l'emballage 7. Une ouverture 2 de forme cylindrique est formée au travers de l'embase 1 et s'étend selon un axe de longitudinal d'ouverture 17. Cette ouverture 2 est disposée de façon que l'axe longitudinal 17 soit sensiblement perpendiculaire à la face de contact alimentaire 9 et que l'ouverture 2 ait une extrémité débouchante sur la face 9 et une autre extrémité débouchante à l'opposé de la face 9, de l'autre côté de l'embase.The base 1 has a food contact face 9 intended to be put face to face with the inside of the package 7. A cylindrical opening 2 is formed through the base 1 and extends along an axis of longitudinal opening 17. This opening 2 is arranged so that the longitudinal axis 17 is substantially perpendicular to the food contact face 9 and the opening 2 has one end emerging on the face 9 and another open end opposite the face 9 on the other side of the base.

Le bouchon 4 qui s'étend au travers de l'ouverture 2 possède une face de contact alimentaire 12 formée à une extrémité et disposée pour être mise en vis-à-vis avec l'intérieur de l'emballage et avec le produit emballé.The plug 4 which extends through the opening 2 has a food contact face 12 formed at one end and arranged to face the inside of the package and with the packaged product.

Cette face de contact 12 du bouchon est prévue pour être parallèle à la face de contact de l'embase 9 lorsque le bouchon .4 est assemblé avec l'embase comme c'est le cas sur les figures 4 et 6. De même lorsque le bouchon 4 est assemblé avec l'embase 1 cette face de contact du bouchon, ainsi que la portion d'obturation du bouchon 10, sont alors disposées à l'intérieur de l'ouverture entre le filetage femelle 13 et la face de contact 9 de l'embase et à distance de ces derniers. Cet éloignement de la portion d'obturation 10 du bouchon par rapport au filetage femelle 13 et à la face de contact de l'embase 9 permet de séparer les fonctions d'étanchéité (localisée au niveau de la portion d'obturation 10) , de vissage du bouchon et de l'embase (localisée sur une partie 8 de l'embase non communicante avec le produit emballé) et la zone aseptisée (localisée au niveau des faces de contact du bouchon 12 et de l'embase 9) .This contact face 12 of the plug is provided to be parallel to the contact face of the base 9 when the plug .4 is assembled with the base as is the case on the figures 4 and 6 . Similarly, when the plug 4 is assembled with the base 1, this contact face of the plug, as well as the closing portion of the plug 10, are then placed inside the opening between the female thread 13 and the face contact 9 of the base and at a distance from these. This distance from the closure portion 10 of the plug with respect to the female thread 13 and to the contact face of the base 9 makes it possible to separate the sealing functions (located at the level of the closing portion 10), screwing the plug and the base (located on a portion 8 of the non-communicating base with the packaged product) and the sanitized area (located at the contact faces of the plug 12 and the base 9).

Grâce à la disposition parallèle des faces 9 et 12 les zones d'ombres sont ainsi réduites. Il est donc aisé d'aseptiser les portions 12 du bouchon 4 et 9 de l'embase 1 qui vont être mises en contact avec le produit en les éclairant, en ligne, à l'aide d'une simple source lumineuse pulsée.Thanks to the parallel arrangement of the faces 9 and 12 the shaded areas are reduced. It is therefore easy to sanitize the portions 12 of the plug 4 and 9 of the base 1 which will be brought into contact with the product by illuminating them, in line, with a simple pulsed light source.

Une fois les faces 9 et 12 aseptisées chaque film est positionné en vis-à-vis d'une face de la première partie 6 de l'embase de telle manière que les portions effilées 16a et 16b de la première partie de l'embase aillent en s'effilant jusqu'à rejoindre un plan parallèle (parallèle et adjacent) aux films d'emballage 7.Once the faces 9 and 12 sanitized each film is positioned vis-à-vis a face of the first portion 6 of the base so that the tapered portions 16a and 16b of the first part of the base go tapering to a parallel plane (parallel and adjacent) to the packaging films 7.

Enfin les films 7, qui sont également aseptisés, sont soudés ou collé le long de leurs périphéries.Finally the films 7, which are also sanitized, are welded or glued along their peripheries.

La figure 5 représente le bouchon 4 de l'invention avant sont assemblage avec l'embase 1 de l'invention. Le bouchon 4 est une première pièce monobloc en plastic et l'embase 1 forme une seconde pièce monobloc également en plastic, ces plastics étant de natures différentes pour éviter les risques de soudure/collage entre l'embase et le bouchon.The figure 5 represents the plug 4 of the invention before being assembled with the base 1 of the invention. The plug 4 is a first one-piece piece of plastic and the base 1 forms a second piece monobloc also plastic, these plastics being of different natures to avoid the risk of welding / bonding between the base and the plug.

Le bouchon comporte une portion tubulaire cylindrique creuse sur une majeur partie de sa longueur ce qui permet de réduire la quantité de matière injectée à refroidir, réduisant d'autant le temps de démoulage du bouchon et son coût de production. Cette portion tubulaire cylindrique du bouchon est complètement obturée à une de ses extrémités par la face de contact alimentaire 12 perpendiculaire à l'axe longitudinal 17 du bouchon. La portion d'obturation 10 du bouchon est formée à l'extrémité de la portion tubulaire cylindrique du bouchon qui porte la face de contact 12. Cette portion d'obturation est en définitive une surface annulaire ayant pour axe principal de symétrie l'axe longitudinal 17.The cap has a hollow cylindrical tubular portion over a major portion of its length which makes it possible to reduce the quantity of injected material to be cooled, thus reducing the capping release time and its cost of production. This cylindrical tubular portion of the plug is completely closed at one of its ends by the food contact face 12 perpendicular to the longitudinal axis 17 of the plug. The closure portion 10 of the plug is formed at the end of the cylindrical tubular portion of the plug which carries the contact face 12. This sealing portion is ultimately an annular surface having the longitudinal axis of the main axis of symmetry. 17.

La zone de l'ouverture 2 de l'embase 1 avec laquelle la portion d'obturation 10 du bouchon est montée étanche est constituée par un rétrécissement de l'ouverture, ce rétrécissement étant préférentiellement réalisé à proximité du filetage femelle. Cette zone de l'ouverture rétrécie est formée par un alésage cylindrique de diamètre inférieur au reste de l'ouverture.The zone of the opening 2 of the base 1 with which the closing portion 10 of the cap is sealed is constituted by a narrowing of the opening, this narrowing being preferably carried out near the female thread. This area of the narrowed opening is formed by a cylindrical bore of smaller diameter than the remainder of the opening.

La portion d'obturation 10 du bouchon a une forme complémentaire de zone de l'ouverture telle que lorsque le bouchon est assemblé avec l'embase, la portion d'obturation 10 est alors serrée uniquement a sont extrémité, dans la zone de l'ouverture 2 pour permettre une étanchéité exclusivement localisée à la périphérie de la portion d'obturation 10.The closure portion 10 of the plug has a complementary shape of the opening area such that when the plug is assembled with the base, the closing portion 10 is then clamped only at its end, in the area of the opening 2 to allow sealing exclusively localized at the periphery of the closing portion 10.

La zone d'étanchéité (c'est-à-dire la zone de contact entre la portion d'obturation 10 et l'ouverture 2) est de surface réduite ce qui facilite les efforts de dévissage du bouchon qui ne doivent pas dépasser 10 N*m-1.The sealing zone (that is to say the area of contact between the sealing portion 10 and the opening 2) is of reduced surface which facilitates the screw unscrewing efforts which must not exceed 10 N * m-1.

Un filetage annulaire 14 est formé sur la périphérie de la portion tubulaire du bouchon de manière à visser le bouchon avec un filetage complémentaire 13 disposé à l'intérieur de l'ouverture 2 de l'embase 1. Ces filetage 13, 14 permettent de forcer le bouchon dans l'ouverture 2 jusqu'à ce qu'il y ait une étanchéité et que la portion d'obturation soit emmanchée serrée dans l'ouverture. L'emmanchement est prévu pour créer une barrière aseptique à l'intérieur de l'ouverture.An annular thread 14 is formed on the periphery of the tubular portion of the plug so as to screw the plug with a complementary thread 13 disposed inside the opening 2 of the base 1. These threads 13, 14 make it possible to force the plug in the opening 2 until there is a seal and that the closing portion is pressed tightly in the opening. The fitting is intended to create an aseptic barrier inside the opening.

Les filetages permettent de visser ou dévisser le bouchon de l'embase entre ¼ et 5 tours au maximum, pour cela on peut prévoir que les filetages comprennent plusieurs spirales.The threads allow to screw or unscrew the cap of the base between ¼ and 5 revolutions maximum, for this we can predict that the threads comprise several spirals.

Le bouchon comporte une portion extérieure de préhension 18 permettant sa manipulation notamment lorsque l'utilisateur souhaite retirer le bouchon pour verser le produit contenu dans l'emballage.The cap has an outer gripping portion 18 allowing its handling especially when the user wishes to remove the cap to pour the product contained in the package.

Une bague d'inviolabilité 19 est intégrée au bouchon 4 pour venir se cliper dans une gorge externe complémentaire 20 formée sur l'embase 1.A tamperproof ring 19 is integrated in the plug 4 to clip into a complementary external groove 20 formed on the base 1.

Cette bague est reliée au bouchon par des picots de faible résistance mécanique et possèdes des ergots 21 qui une fois engagés dans la gorge 20 empêchent les déplacements axiaux de la bague 19 selon l'axe 17. Ainsi, lorsque l'utilisateur souhaite dévisser le bouchon pour le retirer de l'ouverture 2, une traction s'exerce sur la bague qui retenue par les ergots 21 jusqu'à ce que les picots 22 finissent par se rompre et libérer le bouchon.This ring is connected to the cap by pins of low mechanical strength and has pins 21 which once engaged in the groove 20 prevent axial displacements of the ring 19 along the axis 17. Thus, when the user wishes to unscrew the cap to remove it from the opening 2, traction is exerted on the ring which retained by the lugs 21 until the pins 22 eventually break and release the cap.

Ce système permet d'indiquer à l'utilisateur que l'emballage a déjà été ouvert.This system makes it possible to indicate to the user that the package has already been opened.

L'invention permet d'améliorer les conditions de stockage du produit consommable en assurant une meilleure asepsie de l'embase et du bouchon. L'invention peut être utilisée pour le conditionnement de pâte ou un liquide alimentaire ou cosmétique ou pharmaceutique/médical.The invention makes it possible to improve the storage conditions of the consumable product by ensuring better asepsis of the base and the plug. The invention can be used for the packaging of dough or a liquid food or cosmetic or pharmaceutical / medical.

Claims (7)

  1. A closure assembly for a flexible container designed to hold a consumable product, said closure assembly comprising a base (1) and a cap (4):
    - the base (1) having first and second parts (6, 8), the first part of the base (6) being designed to be fitted to a flexible container (7), said first part being provided for this purpose with two peripheral tapered portions (16a, 16b) and;
    - the cap (4) being designed to be fitted to the second part (8) of the base (1) for sealing an opening (2) made in said base (1), said opening (2) of the base (1) emerging onto a surface of the base, the so-called contact surface (9), which is in contact with said consumable product, characterized in that:
    the base (1) has a female thread (13) on the inside of the opening (2) and in that the cap (4) has a male thread (14) corresponding to said female thread (13), thus enabling a portion of the cap to be screwed into the opening (2) of the base, the cap also having a sealing portion (10) so that, once the cap (4) has been fitted by screwing it to the base (1), the sealing portion (10) is tightly fitted in at least one area of the opening (11) located between said female thread (13) and said contact surface (9) of the base (1) and in that the cap has an elongated tubular shape and at one of its ends has a surface (12) in contact with the product, said surface of the cap being provided in such a way that, when the cap is screwed to the base thus sealing the opening, the contact surface of the cap is closer to the female thread of the base than to the surface (9) of the base which is in contact with the product.
  2. A closure assembly according to Claim 1, characterized in that it involves a flexible container (7) in the form of a pouch and in that the base (1) is fitted to said container (7) in such a way as to seal it.
  3. A closure assembly according to Claim 2, characterized in that the container is made up of films and in that said films are joined by welding to the first part of the base in such a way that said tapered portions (16a, 16b) of the first part of the base continue to taper off until they join a plane parallel to the films of the container.
  4. A closure assembly according to any one of Claims 1 to 3, characterized in that the cap (4) and the base (1) are made of materials which are different from one another.
  5. An assembly according to Claim 4, characterized in that the material forming the cap (4) has a hardness which is greater than the hardness of the material forming the base (1).
  6. An assembly according to either one of Claims 4 or 5, characterized in that the material forming the base (1) has a melting point which is lower than the melting point of the material forming the cap (4).
  7. An assembly according to any one of Claims 4 to 6, characterized in that the material forming the cap (4) is high-density polyethylene, HDPE, or polypropylene, PP, and in that the material forming the base (1) is high-density polyethylene, HDPE, or low-density polyethylene, LDPE.
EP06820210A 2005-10-17 2006-10-13 Closing assembly for container Not-in-force EP1940700B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0510569A FR2892096B1 (en) 2005-10-17 2005-10-17 PACKAGING ASSEMBLY FOR PACKAGING AND METHOD FOR PACKAGING.
PCT/FR2006/002311 WO2007045748A1 (en) 2005-10-17 2006-10-13 Closing assembly for container and container closing method

Publications (2)

Publication Number Publication Date
EP1940700A1 EP1940700A1 (en) 2008-07-09
EP1940700B1 true EP1940700B1 (en) 2011-07-13

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EP06820210A Not-in-force EP1940700B1 (en) 2005-10-17 2006-10-13 Closing assembly for container
EP06820209A Not-in-force EP1940699B1 (en) 2005-10-17 2006-10-13 Closing assembly for container and container closing method

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EP06820209A Not-in-force EP1940699B1 (en) 2005-10-17 2006-10-13 Closing assembly for container and container closing method

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EP (2) EP1940700B1 (en)
AT (2) ATE516229T1 (en)
DE (1) DE602006020753D1 (en)
FR (1) FR2892096B1 (en)
WO (2) WO2007045747A1 (en)

Cited By (1)

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WO2007045748A1 (en) 2007-04-26
ATE501953T1 (en) 2011-04-15
EP1940700A1 (en) 2008-07-09
FR2892096B1 (en) 2008-01-04
ATE516229T1 (en) 2011-07-15
FR2892096A1 (en) 2007-04-20
EP1940699A1 (en) 2008-07-09
WO2007045747A1 (en) 2007-04-26
DE602006020753D1 (en) 2011-04-28
EP1940699B1 (en) 2011-03-16

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