EP2119637A1 - Combination of a packaging container for sensitive products and a device for airtight sealing thereof - Google Patents

Abstract

Device for sealing the opening of tubular containers for packaging products sensitive to atmospheric pollutants comprises a cap (1), a mounting ring (2) for attachment to the container, two hinges (6, 7) connecting the cap to the mounting ring, a spring (9), and an antitamper system. The cap has an outer wall that fits into the container's opening and a concentric inner wall forming a cavity for containing an air treatment agent. Device for sealing the opening of tubular containers for packaging products sensitive to atmospheric pollutants comprises a cap (1), a mounting ring (2) for attachment to the container, two hinges (6, 7) connecting the cap to the mounting ring, a spring (9) that assists opening and closing of the cap and controlling the angle at which it is opened, and an antitamper system in the form of peripheral microwelds and/or a tear-off strip between the cap and the mounting ring. The cap has an outer wall that fits into the container's opening and a concentric inner wall forming a cavity for containing an air treatment agent.

Description

Field of the invention

The invention relates to a device for sealing the opening of containers and the purification treatment of ambient air therein by opening-closing cycles, these containers being intended for packaging sensitive products. gaseous pollutants in this ambient air.

• d'un moyen d'obturation étanche de l'orifice d'accès aux conteneurs,
• d'un moyen de montage du dispositif d'obturation sur l'orifice d'accès des conteneurs,
• d'un moyen de liaison entre le moyen d'obturation et le moyen de montage du dispositif,
• d'au moins un moyen de contrôle d'inviolabilité,
• d'un moyen d'assistance mécanique contrôlant l'amplitude de l'angle d'ouverture et aidant à l'ouverture et à la fermeture du moyen d'obturation.

The invention more particularly relates to a device for sealing the access port of containers and purification treatment of ambient air therein by opening and closing cycles, these containers being intended for the packaging of products sensitive to gaseous pollutants. This sealing device and purification treatment is composed, according to a new combination of known or non-known means:

• sealing means for sealing the access port to the containers,
• a means for mounting the closure device on the access port of the containers,
• a connection means between the closure means and the device mounting means,
• at least one inviolability check means,
• mechanical assistance means controlling the amplitude of the opening angle and assisting in the opening and closing of the closure means.

The sealing device and purification treatment being made of thermoplastic materials by the means of plastics, in one piece.

• les agents polluants gazeux qui peuvent être présents dans l'air ambiant dans les conteneurs étanches de conditionnement de produits sensibles peuvent être, par exemple, de la vapeur d'eau, de l'oxygène (O₂), de l'ammoniac (NH₃), des alcools, des aldéhydes, des cétones, de l'anhydride sulfureux (SO₂), l'acide sulfhydrique (H₂S), les mercaptans, les alcènes dont en particulier l'éthylène, les alcynes, le dioxyde de carbone (CO₂), le monoxyde de carbone (CO), le dioxyde d'azote (NO₂),les alcanes dont en particulier le méthane (CH₄), les halogènes dont en particulier le fluor, les bactéries en suspension dans l'air ambiant et autres.
• Les produits sensibles aux agents polluants gazeux présents dans l'air ambiant peuvent être définis comme étant :
  • des matériaux à l'état solide, se présentant sous des formes aussi diverses que pulvérulentes, granuleuses, comprimées, en particulier pour des produits effervescents, dragéifiés ou agglomérés, et/ou
  • des objets pouvant se présenter sous des formes diverses en particulier oblongues.

Subsequently and throughout the description of the subject of the invention:

• the gaseous pollutants that may be present in the ambient air in the sealed containers for packaging sensitive products may be, for example, water vapor, oxygen (O ₂ ), ammonia (NH ₃ ), alcohols, aldehydes, ketones, sulfur dioxide (SO ₂ ), hydrogen sulfide (H ₂ S), mercaptans, alkenes, in particular ethylene, alkynes, Carbon (CO ₂ ), carbon monoxide (CO), nitrogen dioxide (NO ₂ ), alkanes, in particular methane (CH ₄ ), halogens, in particular fluorine, bacteria in suspension in the ambient air and others.
• Products sensitive to gaseous pollutants present in the ambient air can be defined as being:
  • solid state materials, in forms as diverse as pulverulent, granular, compressed, in particular for effervescent, sugar-coated or agglomerated products, and / or
  • objects that can be in various forms, in particular oblong.

• les matériaux sensibles aux agents polluants tels que précités à conditionner en conteneur étanche sont, en général, des produits médicamenteux, en particulier ceux effervescents, qu'il est souhaitable de protéger pour que leur efficacité réactive n'évolue pas par réaction avec l'un au moins des agents polluants, et/ou pour que leur intégrité physique soit conservée dans le temps et que soit évitée, par exemple, une évolution de leur cohésion mécanique.
• les objets sensibles aux agents polluants, à conditionner en conteneur étanche sont en particulier de forme oblongue, ont une section sensiblement polygonale, circulaire, elliptique, allongée et sont des consommables. De tels objets sont notamment des languettes, des bandes réactives ou lamelles rigides utilisées par exemple à des fins de diagnostic ou de contrôle dans le domaine médical, des pansements, des produits alimentaires tels que des chewing-gums, des cure-dents, bâtonnets ou autres.

So and according to this definition:

• the materials sensitive to polluting agents as mentioned above to be packaged in a sealed container are, in in general, medicinal products, in particular effervescent ones, which it is desirable to protect so that their reactive efficiency does not change by reaction with at least one of the polluting agents, and / or so that their physical integrity is preserved in time and that is avoided, for example, an evolution of their mechanical cohesion.
• the objects sensitive to pollutants, to be packaged in a sealed container are in particular of oblong shape, have a substantially polygonal section, circular, elliptical, elongated and are consumables. Such objects are in particular tabs, rigid strips or strips used for example for diagnostic or control purposes in the medical field, dressings, food products such as chewing gums, toothpicks, sticks or other.

For obvious reasons, in particular hygiene, but also in order to avoid any degradation and thus improve the shelf life of the products, sensitive to the pollutants present in the ambient air, they are placed in containers at the same time. protected from physicochemical attacks resulting from the level of the concentration of gaseous pollutants, but also from light, in particular from UV rays or even from mechanical damage such as shocks.

State of the art

The establishment of the state of the art reveals the existence of caps to close containers whose essential function is to be desiccating: these particular containers are intended to receive and contain products sensitive to humidity, products which must be protected by the creation of a dryest internal atmosphere possible, to avoid them a recovery of humidity, because such a recovery adsorption moisture could in particular react with said products by decreasing their reactivity, cause their mechanical fragility impact, disintegration or disintegration in the container.

The products which are particularly sensitive to ambient humidity are numerous and can be more precisely, for example, medicinal test materials which are in powdery forms or in more elaborate forms such as granules, tablets, lozenges, oblong shape such as test strips or others, including those specifically that have a special sensitivity to moisture.

These desiccant and waterproof containers of the state of the art for the storage of products sensitive to ambient humidity are of tubular shape or of another form and, provided with an orifice, are closed by a stopper secured or not of the tubular part by means of a securing means such as a narrow flexible band made of a polymer material identical to that of the container and the plug.

These desiccant and watertight containers are provided with internal desiccant means which are either a coating or an insert made by means of a desiccant thermoplastic polymer composition placed inside the containers on the inner surface of the bottom of the tube and / or on the internal surface of the side wall of the tube, is still a granular desiccant material placed in a particular housing on the inner surface of the plug.

All these drying means are implanted separately or simultaneously to increase the effectiveness of their desiccant action by a mass effect.

• ■ d'une enveloppe tubulaire munie d'un fond à l'une des extrémités, l'autre extrémité étant ouverte pour permettre le remplissage de ladite enveloppe,
• ■ et d'un moyen de fermeture qui peut être un bouchon amovible s'emboîtant dans l'extrémité ouverte de l'enveloppe tubulaire,

ou encore un bouchon-couvercle s'emboîtant également dans l'extrémité ouverte, mais relié à l'enveloppe tubulaire par une liaison souple telle qu'une bande souple étroite en polymère faisant office de charnière.These closed containers are formed:

• A tubular casing provided with a bottom at one end, the other end being open to allow filling of said casing,
• ■ and a closure means which can be a removable plug fitting into the open end of the tubular casing,

or a cap-cover also fitting into the open end, but connected to the tubular casing by a flexible connection such as a narrow flexible polymer band acting as a hinge.

All these containers and their removable or linked closure means are made of thermoplastic polymer compositions according to techniques well known in the plastics industry.

Means for closing the containers and the desiccant containers closed by these means, for the packaging of materials and / or objects sensitive to ambient humidity, are described in the state of the art and are essentially distinguished from each other by their architecture, in particular by the desicative means used in said containers and by the architecture of the closure means of the container.

According to a first type of desiccant container sealing means resulting from the state of the art, this first type of closure is a male-type cap-lid connected to the tubular part of the envelope of the desiccant container by a means mechanical composed of a ring forcing said tubular casing and a flexible and narrow band connecting the cap-cover and the ring, the desiccant container being formed of a tubular casing open at one of its ends for give access to the receptacle area.

• d'un moyen d'obturation comportant, un bouchon-couvercle de type mâle, d'une bague pour le montage à force dudit bouchon-couvercle sur l'enveloppe tubulaire du conteneur, d'un témoin d'inviolabilité, à déchirer, reliant la bague de montage à la périphérie externe du bouchon-couvercle et d'une bande souple faisant office de charnière étroite de liaison entre le bouchon-couvercle et ladite bague, le moyen d'obturation étant réalisé en un matériau polymère thermoplastique, qui peut être différent de celui de l'enveloppe tubulaire.
• d'une enveloppe tubulaire en matériau polymère thermoplastique, munie d'un fond à l'une de ses extrémités et ouverte à l'autre extrémité, servant de réceptacle aux matériaux à conditionner, sur laquelle est monté le moyen d'obturation par l'intermédiaire de la bague.
  Le bouchon-couvercle de type mâle est formé d'un fond et d'une jupe périphérique descendante dite externe qui délimitent une cavité cylindrique à l'intérieur de laquelle se trouve un logement contenant un agent dessicatif pulvérulent, en contact direct avec le milieu gazeux interne à déshydrater.

A document ( US P 4,934,556 ) describes such a sealing means and a desiccant container, closed by this means, the closed assembly forming the container consisting of:

• a closure means comprising, a male-type cap-cover, a ring for force-fitting said cap-cover on the tubular casing of the container, a tamper evidence, tearing, connecting the mounting ring at the outer periphery of the cap-lid and a flexible band acting as a narrow hinge connecting the cap-cover and said ring, the sealing means being made of a thermoplastic polymer material, which can be different from that of the tubular casing.
• a tubular envelope of thermoplastic polymer material, provided with a bottom at one of its ends and open at the other end, serving as a receptacle for the materials to be packaged, on which is mounted the closure means by the intermediate of the ring.
  The male-type cap-cover is formed of a bottom and an outer so-called peripheral peripheral skirt which delimit a cylindrical cavity inside which there is a housing containing a pulverulent desiccant, in direct contact with the gaseous medium. internal to dehydrate.

The closure means comprising the cap-cover, the force-mounting ring, the inviolability indicator and a single flexible and narrow connecting strip connecting the cap-cover to the ring constitute a set of thermoplastic polymer material, independent of the tubular casing forming the receptacle of the desiccant container.

• ■ être la conséquence d'une insuffisante étanchéité entre le bouchon-couvercle de type mâle et l'enveloppe tubulaire, l'architecture dudit bouchon-couvercle ne paraissant pas être suffisamment adaptée à une recherche de l'étanchéité du conteneur quand peuvent se produire des échanges externe-interne de volumes gazeux chargés d'humidité qu'il est important de déshydrater rapidement,
• ■ également être, au moins pour partie, la conséquence du moyen de liaison souple entre le couvercle-bouchon et la bague cerclant à force l'enveloppe, ce moyen qui est une bande souple étroite en matériau polymère faisant office de charnière ne permettant pas un positionnement adéquat au moment de la fermeture de l'enveloppe par absence de son guidage préalable à ladite fermeture.

This type of desiccant lid-cap for closing a tubular envelope for the packaging of moisture-sensitive products presents uncertainties as to its ability to ensure rapid and complete desiccation of said products during the opening / closing of said packaging container. . This state of affairs seems:

• ■ be the consequence of insufficient sealing between the male-type cap-cover and the tubular casing, the architecture of said cap-cover does not seem to be sufficiently adapted to a search for the tightness of the container when can occur external-internal exchanges of gaseous volumes loaded with moisture which it is important to dehydrate rapidly,
• ■ also be, at least partly, the consequence of the flexible connection means between the cap-cap and the ring strapping force envelope, this means which is a narrow flexible band of polymer material acting as hinge not allowing a adequate positioning at the time of closure of the envelope for lack of its prior guidance to said closure.

In addition, this type of cap-lid requires a two-handed manipulation of the closed container, both for its opening and closure.

According to another type of means of closure of desiccant containers resulting from the state of the art, this other type of closure is a female-type cap-lid, secured to the envelope of the desiccant container by a means consisting of a flexible and narrow connecting strip, the tubular casing, the cap-lid and the connecting means being made by injection with the same thermoplastic polymer material.

• d'une enveloppe tubulaire en matériau polymère thermoplastique munie d'un fond à l'une de ses extrémités et ouverte à l'autre extrémité,
• d'un bouchon-couvercle, de type femelle, exempt de jupe interne descendante, qui recouvre en position fermée, la paroi de l'extrémité ouverte de l'enveloppe du conteneur, l'étanchéité étant susceptible d'être assurée par le contact de la surface interne du fond du couvercle du bouchon-couvercle avec la périphérie de l'extrémité ouverte de l'enveloppe tubulaire, ledit bouchon-couvercle, étant muni sur sa surface interne d'une cavité ajourée pouvant recevoir un agent dessicatif en pastille et raccordé à l'enveloppe au moyen d'un lien fait d'une bande souple et étroite en polymère, l'enveloppe, le couvercle et le lien entre le couvercle et l'enveloppe étant une seule pièce, réalisée au cours d'une seule opération de plasturgie, par injection-moulage par exemple,
• d'un insert dessicatif formé d'un matériau polymère thermoplastique chargé de matériaux dessicatifs, cet insert pouvant recouvrir simultanément le fond et la paroi interne de ladite enveloppe.
• Le bouchon-couvercle démuni d'une jupe interne périphérique descendante, ne peut établir une étanchéité de type surface à surface avec la surface interne de l'extrémité ouverte de l'enveloppe tubulaire, l'étanchéité ne pouvant seulement et apparemment être obtenue que par le contact de la surface interne du fond du bouchon-couvercle et la périphérie de l'extrémité ouverte de l'enveloppe.
• le bouchon-couvercle n'est pas particulièrement adapté à la création d'étanchéité entre l'intérieur et l'extérieur du conteneur, de par son architecture même, mais aussi de par son moyen de liaison souple avec l'enveloppe, moyen qui ne permet pas de positionner le couvercle au moment de sa fermeture en raison de cette grande souplesse et dès lors, de l'absence d'une rigidité mécanique suffisante aussi bien longitudinalement que latéralement, nécessaire au guidage du bouchon-couvercle au moment de sa fermeture.
• nécessite une manipulation à deux mains du conteneur clos aussi bien pour son ouverture que sa fermeture.

A document ( EP 1 352 844 ) describes such a type of means for closing the desiccant containers, the closed assembly forming the container consisting of:

• a tubular envelope of thermoplastic polymer material provided with a bottom at one of its ends and open at the other end,
• a stopper-cap, of female type, free of internal downward skirt, which covers in closed position, the wall of the open end of the casing of the container, the seal being able to be ensured by the contact of the inner surface of the bottom of the cap-lid cover with the periphery of the open end of the tubular casing, said cap-lid being provided on its inner surface with a perforated cavity which can receive a desiccant in pellet and connected to the envelope by means of a link made of a flexible and narrow polymer band, the envelope, the cover and the link between the cover and the envelope being a single piece, made in a single operation plastics injection molding, for example,
• a desiccant insert formed of a thermoplastic polymer material loaded with desiccant materials, this insert being able to simultaneously cover the bottom and the inner wall of said envelope.
• The cap-lid, which has no downward peripheral inner skirt, can not establish a surface-to-surface seal with the inner surface of the open end of the tubular casing, the seal being able to only and apparently only be obtained by the contact of the surface internal of the bottom of the cap-lid and the periphery of the open end of the envelope.
• the cap-lid is not particularly adapted to the creation of sealing between the inside and outside of the container, by its very architecture, but also by its means of flexible connection with the envelope, means that does not does not allow to position the lid at the time of its closure because of this great flexibility and therefore, the lack of sufficient mechanical rigidity both longitudinally and laterally, necessary to guide the cap-lid at the time of its closure.
• requires two-handed manipulation of the closed container for both opening and closing.

Another document ( GB 2,224,309 ) discloses a hinged closure device, that is to say a thermoplastic container stopper and more particularly for containers having a very narrow, coaxial distribution orifice, intended for dispensing liquid. The cap has on the inner surface of its upper end a tubular peripheral wall having a section adapted to that of the narrow dispensing orifice to be closed, and allowing, when the cap is in the closed position, to simultaneously ensure the tightness of the plug.

Said device is composed of two parts, the first part being a click cover, pivoting on two hinges constituted by two flexible bands, defining a first axis of rotation, the second part being a base to be fixed on the mouth of a container to seal, and a flexible and elastic link, ensuring the connection between these two members and allowing the cap to occupy two rest positions, one closed and the other open, located on each side of an intermediate position during movement.

Said flexible link, having a return function, is in the form of "S" and is connected on one side to the plug at a precise point and on the other, to the external surface of the base at another precise point, and this, in a semi-rigid elastic manner. The connection between the ends of the flexible link, on the one hand on the cap and on the other hand on the outer surface of the base, is characterized by an absence of hinges, due to the continuity of the thickness of the wall.

However, this device has certain disadvantages that may result from a form of embrittlement of the material constituting the flexible link. Indeed, the "S" shape taken by the flexible link when the device moves from a closed position to an open position contributes to creating two opposing forces with respect to a point of inflection which lies substantially in the middle of the flexible link. this inflection point delimiting downstream a convex blade zone and upstream a blade zone which remains concave.

Thus, the inversion of slope due to the "S" deformation creates, during closing, an acceleration of the movement taking effect on the convex part of the blade, ie between the cover and the point of inflection. , to restore the concave stable initial state of the entire blade.

This type of flexible link providing the return function therefore undergoes deformation by inversion of slope over its entire length, this total and constant mechanical mobilization of the constituent material of the flexible link providing fragility.

• celles d'absorber rapidement l'humidité et/ou des agents polluants gazeux en particulier ceux énoncés précédemment présents dans un conteneur après un cycle d'ouverture/fermeture même rapide,
• celles de pouvoir avec une seule main manipuler facilement lesdits bouchons-couvercles et de tenir le conteneur obturé, et
• celles également de pouvoir assister mécaniquement l'ouverture/fermeture du bouchon-couvercle.

Thus, it appears that none of the desiccant lid caps of the state of the art have sufficient means to condition under the best conditions products sensitive to relative humidity, and / or other gaseous pollutants, in appropriate containers, and to allow these containers to develop features as remarkable as,

• those of rapidly absorbing moisture and / or gaseous pollutants, in particular those mentioned above, present in a container after an even rapid opening / closing cycle,
• those of being able with one hand to easily handle said caps-lids and to hold the container closed, and
• those also to be able to assist mechanically the opening / closing of the cap-lid.

Objectives of the invention

Many objectives are therefore assigned to the sealing device according to the invention of conditioning containers and purification treatment of ambient air therein by removing gaseous pollutants present, so that it can best eliminate the aforementioned drawbacks and that it provides improved and improved solutions compared to the various means used in the closure devices described in the state of the art.

• une ouverture/fermeture facile du dispositif d'obturation étanche et de traitement par un guidage mécanique précis du moyen d'obturation pour que l'obturation se fasse avec précision sans guidage manuel, selon un excellent positionnement,
• une ouverture/fermeture mécaniquement assistée du dispositif d'obturation étanche et de traitement pour accélérer l'ouverture et la fermeture du moyen d'obturation et d'en limiter l'amplitude de l'angle d'ouverture en fin de course afin de placer le moyen d'obturation dans une position favorable à sa fermeture avec seulement l'usage d'un doigt de la main tenant le conteneur,
• une étanchéité complète établie entre l'orifice à obturer et le moyen d'obturation,
• au moins un moyen d'inviolabilité du conteneur avant la première ouverture,
• une cinétique de traitement des agents polluants gazeux et, en particulier, de la vapeur d'eau présente dans le conteneur, supérieure à celle constaté dans l'état de la technique, c'est-à-dire ayant une plus grande capacité à éliminer la pollution interne qui se crée lors de l'ouverture et de la fermeture du conteneur, pour empêcher les produits conditionnés sensibles aux agents polluants gazeux d'adsorber et/ou de réagir en partie avec lesdits agents et une capacité à maintenir à un niveau faible et relativement constant le taux d'agents polluants gazeux interne au conteneur, en dehors des cycles d'ouverture/fermeture, pour protéger au mieux les produits conditionnés, sensibles à ces agents polluants.

Among the most important objectives assigned to the closure device, according to the invention, of packaging containers for products sensitive to gaseous pollutants, are retained the means, which combined with each other, ensure:

• an easy opening / closing of the sealing and treatment device by a precise mechanical guidance of the closure means so that the closure is done accurately without manual guidance, according to an excellent positioning,
• a mechanically assisted opening / closing of the sealing and treatment device to accelerate the opening and closing of the closure means and to limit the amplitude of the opening angle at the end of the stroke in order to place the closure means in a position favorable to its closure with only the use of a finger of the hand holding the container,
• a complete seal established between the orifice to be closed and the sealing means,
• at least one means of inviolability of the container before the first opening,
• treatment kinetics of the gaseous pollutants and, in particular, water vapor present in the container, higher than that found in the state of the art, that is to say having a greater ability to eliminate the internal pollution that is created during the opening and closing of the container, to prevent the conditioned products sensitive to gaseous pollutants to adsorb and / or react in part with said agents and an ability to maintain a low level and relatively constant the rate of gaseous pollutants internal to the container, outside the opening / closing cycles, to better protect the packaged products, sensitive to these pollutants.

Summary of the invention

All the objectives stated above can be achieved by the device for the sealed sealing of containers and purification treatment of ambient air therein intended to condition products, shaped or not, sensitive to gaseous pollutants.

• un moyen d'obturation étanche de l'orifice d'accès du conteneur, disposant sur sa face interne d'un moyen de conditionnement d'agent(s) de traitement de l'air ambiant,
• un moyen de montage du moyen d'obturation sur l'enveloppe tubulaire de l'orifice d'accès,
• un moyen de liaison entre le moyen d'obturation et le moyen de montage,
• un moyen d'inviolabilité à première ouverture, placé entre le moyen d'obturation et le moyen de montage,

se caractérise en ce qu'il comporte :

1. a) comme moyen d'obturation de l'orifice de l'enveloppe tubulaire du conteneur, un bouchon-couvercle, de type mâle se composant d'une paroi d'extrémité supérieure sur laquelle est montée une première paroi périphérique coaxiale établissant un contact étanche avec la surface interne de l'enveloppe tubulaire de l'orifice d'accès du conteneur, et une deuxième paroi, interne à la première, constituant le moyen de conditionnement des agents de traitement de l'air ambiant,
2. b) comme moyen de montage du moyen d'obturation, une bague de montage montée sur l'enveloppe tubulaire de l'orifice d'accès dont la face interne est munie d'un moyen de fixation à l'égard de la face externe de l'enveloppe,
3. c) comme moyen de liaison, entre le moyen de montage et le moyen d'obturation, deux charnières distinctes et espacées l'une de l'autre,
4. d) comme moyen d'inviolabilité à première ouverture, une série périphérique de micro-points de liaison ou une bande périphérique à arracher, ou la combinaison de ces deux moyens placée entre le moyen d'obturation et le moyen de montage.
5. e) un moyen d'assistance mécanique à l'ouverture et la fermeture et de contrôle de l'amplitude de l'angle d'ouverture du moyen d'obturation, placé dans l'espace situé entre les deux charnières et liés simultanément au bouchon couvercle par une charnière film et à la bague de fixation du dispositif sur l'enveloppe par une autre charnière film, ledit moyen d'assistance mécanique ayant l'aspect en coupe d'une équerre.

According to the invention, the device for sealing and purification treatment of the ambient air contained therein containers for packaging products sensitive to ambient pollutants, with amplitude of the controlled opening angle, and mechanical assistance opening and closing, made of thermoplastic polymer materials, device to be installed on the tubular casing of the access port of said containers, which comprises:

• means for sealing the access opening of the container, having on its inner face a conditioning means for ambient air treatment agent (s),
• means for mounting the closure means on the tubular casing of the access orifice,
• connecting means between the closure means and the mounting means,
• tampering means with a first opening, placed between the closure means and the mounting means,

is characterized in that it comprises:

1. a) as a means for closing the orifice of the tubular casing of the container, a cap-cover, male type consisting of an upper end wall on which is mounted a first coaxial peripheral wall establishing a tight contact with the inner surface of the tubular casing of the access port of the container, and a second wall, internal to the first, constituting the conditioning means of the ambient air treatment agents,
2. b) as a means for mounting the closure means, a mounting ring mounted on the tubular casing of the access orifice whose inner face is provided with a fixing means with respect to the outer face of the envelope,
3. c) as connecting means, between the mounting means and the closure means, two separate hinges and spaced apart from each other,
4. d) as a means of tampering with a first opening, a peripheral series of connecting micro-points or a peripheral strip to tear, or the combination of these two means placed between the closure means and the mounting means.
5. e) mechanical assistance means for opening and closing and for controlling the amplitude of the opening angle of the closure means, placed in the space between the two hinges and simultaneously connected to the stopper; cover by a film hinge and to the fixing ring of the device on the envelope by another film hinge, said mechanical assistance means having the sectional appearance of a bracket.

Detailed description of the invention

The various objectives assigned to the subject of the invention result from the shortcomings manifested during the use of desiccant containers of the state of the art conditioning products sensitive to ambient humidity, and closed by caps-lids provided with hinges-films.

• l'impossibilité d'exécuter d'une seule main la préhension du conteneur et la commande d'ouverture/fermeture du bouchon-couvercle, et en particulier, pour éliminer l'un des témoins d'inviolabilité à première ouverture,
• l'absence d'assistance mécanique facilitant l'ouverture, et la fermeture du bouchon-couvercle, et le contrôle de l'amplitude de l'angle d'ouverture du bouchon-couvercle, en fin de course,
• l'absence de guidage précis du bouchon-couvercle, par l'utilisation comme moyen de liaison entre conteneur et bouchon-couvercle, d'une charnière souple qui ne permet pas un positionnement adéquat dudit bouchon-couvercle au moment où se produit l'obturation du conteneur,
• la capacité plus ou moins rapide à traiter les agents polluants gazeux présents dans l'air ambiant régnant à l'intérieur du conteneur, lors de cycles d'ouverture/fermeture du conteneur et
• l'efficacité du moyen d'obturation en terme d'étanchéité entre les cycles d'ouverture/fermeture à fréquence longue pour empêcher des échanges gaz/gaz entre l'intérieur et l'extérieur du conteneur clos qui pourrait provoquer une évolution du taux d'humidité relative et du taux des autres agents polluants gazeux régnant à l'intérieur du conteneur.

Among these shortcomings present in containers and their closure device from the state of the art, it is possible to recall the latent problems found, which are:

• the impossibility of carrying out with one hand the gripping of the container and the opening / closing command of the cap-lid, and in particular, to eliminate one of the first-time tamper evidence,
• the absence of mechanical assistance facilitating the opening, and the closing of the cap-lid, and the control of the amplitude of the opening angle of the cap-lid, at the end of the race,
• the absence of precise guiding of the cap-lid, by the use as a connecting means between container and cap-lid, of a flexible hinge which does not allow proper positioning of said lid-cap at the moment when the plugging occurs the container,
• the more or less rapid capacity to treat the gaseous pollutants present in the ambient air inside the container, during opening / closing cycles of the container and
• the effectiveness of the sealing means in terms of sealing between the cycles of opening / closing at long frequency to prevent gas / gas exchanges between the inside and the outside of the closed container which could cause a change in the rate of relative humidity and the rate of other gaseous pollutants within the container.

All these latent problems find solutions in the closure device and treatment according to the invention through a new combination of known or unknown means.

According to the invention, the sealing means and purification treatment created for the container is of the male type, as recommended by the state of the art, but it is very different from the state of the art in that its new architecture ensures a peripheral zone of intimate contact with the inner surface of the tubular casing constituting the orifice of the container to be closed, this zone of intimate peripheral contact, surface-to-surface type, forming an effective barrier for obtaining and maintaining the internal tightness of the container.

To do this, the sealing means chosen is of the cap-lid type, having an upper end wall constituting the ceiling of the cap-lid having a section adapted to that of the tubular casing which it must close. This upper end wall is provided with two walls, one said external and the other said internal, which are peripheral and tubular, concentric and coaxial with the tubular casing.

The first so-called outer wall, peripheral and tubular, creates an intimate peripheral contact area for obtaining the seal, surface-to-surface type, by establishing a sealing barrier between the inner face of the tubular casing of the access orifice and the outer face of said first wall, said outer wall, of the cap-lid.

The sectional shape of this first wall, said outer wall, reveals a peripheral bulge, oriented outwards, and intended to be in contact with the inner wall of the tubular casing of the orifice of the container.

When the closure means or cap-lid is placed in closed position, the peripheral bulge of the first wall, said outer wall, comes into force contact with the inner surface of the tubular casing of the orifice, while undergoing preferably a certain deformation or crushing effect which causes an increase in the contact area of the peripheral bulge with the inner surface of the tubular casing of the container orifice so that the surface-to-surface contact which is tangential approach can become intimate and immediate closure by an increase in the contact area that results from the sliding and crushing of a wall on the other reinforcing the seal between the closure device and the container.

Therefore, is established between the inside and outside of the closed container by the sealing means according to the invention, an effective seal.

The second wall, referred to as the inner, peripheral and preferably tubular wall, constitutes an appropriate housing for receiving one or more purification treatment agents, the particular position of this housing being decisive for increasing the kinetics of treatment of the gaseous pollutants and in particular the water vapour.

This appropriate housing, preferably tubular type, is located on the inner face of the closure means or cap-lid, and is closed by a closure means not sealed to gaseous pollutants to ensure their rapid elimination from the container where are packaged the sensitive products to protect.

In order for the closed container by the sealing and treatment means according to the invention to be very effectively desiccative, in the particular case of the treatment of water vapor, the choice of the desiccant is also decisive.

According to the invention, the desiccant used in the sealed container by the sealing and treatment means, is selected from the group consisting of silica gels, molecular sieves in powder form or deposited on a powdery support.

• soit en mélange.avec l'agent dessicatif,
• soit séparément de l'agent dessicatif en créant dans ce logement approprié des alvéoles ouvertes sectorisant ledit logement, permettant de recevoir séparément plusieurs agents de traitement ou des mélanges d'agents de traitement compatibles entre eux.

So that the container closed by the sealing means and treatment according to the invention is also very effective against gaseous pollutants other than water vapor, known treatment agents suitable for each polluting agent , are implemented in the appropriate housing created on the internal bottom of the sealing and treatment means:

• either in mixture with the desiccant,
• or separately from the desiccant by creating in this appropriate housing open cells sectorizing said housing, for receiving separately several treatment agents or mixtures of treatment agents compatible with each other.

To facilitate the operation of opening and closing the cover cap, the lower plane edge of the outer peripheral wall can be extended by a gripping visor.

A safe opening system for children in order to make it difficult or impossible for them to open the lid-cap can be installed on the right side of the visor. This device which can be for example a flexible blade forming an integral part of the mounting means is located below the visor in such a way that the protrusion of the visor making it possible to exert a vertical thrust to assume its opening is careened by this flexible blade.

Therefore access to the visor can be done only after exerting pressure on the blade to cause deformation and release access to said visor. By such a means, the protection of the child is ensured by the necessary two complementary gestures to be performed, and to exercise simultaneously, the first gesture being a horizontal pressure on the flexible blade, the second being a vertical pushing action from below to high on the unobstructed visor, thanks to the maintenance of the pressure on the flexible blade.

As soon as it has been opened at least once, in order to keep the cap-lid in the closed position, the inner face of the outer wall of the cap-lid substantially to the right of the gripping visor and the outer face of the outer wall the tubular casing of the access port of the container are provided with a latching means, requiring a mechanical force as well to complete the closing of the lid-lid reinforced sealing that to ensure its opening.

• ayant un dimensionnement adapté à celui de l'enveloppe tubulaire,
• étant munie sur sa face interne, destinée à être au contact de la surface externe de l'enveloppe d'un moyen d'encliquetage en creux ou en relief, à l'égard de la face externe de l'enveloppe, sur laquelle le moyen permettant l'encliquetage de la bague est à l'opposé, c'est-à-dire en relief ou en creux.
• dans le cas où elle n'est pas munie sur sa surface interne d'un moyen d'encliquetage, étant strictement ajustée aux dimensions de l'enveloppe et implantée à force sur l'enveloppe, ou encore fixé par un moyen de collage.

According to the invention, the means for mounting the closure means or cap-lid, is formed of a fixing ring which is mounted on the tubular casing of the access port to the container to be sealed, this ring:

• having a dimensioning adapted to that of the tubular envelope,
• being provided on its inner face, intended to be in contact with the outer surface of the casing of a recessed or raised snap-fastening means, with respect to the outer face of the casing, on which the means allowing the snap of the ring is the opposite, that is to say, raised or recessed.
• in the case where it is not provided on its inner surface with a detent means, being strictly adjusted to the dimensions of the casing and force-fitted on the casing, or fixed by a bonding means.

• l'épaisseur de l'enveloppe tubulaire à l'intérieur de la gorge n'est pas modifiée, et que
• la bague de fixation vient se monter à force dans ladite gorge.

According to a variant of the invention, the outer peripheral surface of the tubular casing of the access port to the container to be closed comprises two projecting peripheral flanges, separated from one another by creating a groove presenting in section a substantially rectangular shape, such that:

• the thickness of the tubular casing inside the groove is not changed, and that
• the fixing ring is forced into said groove.

• l'épaisseur de l'enveloppe tubulaire à l'intérieur de la gorge est modifiée, et est inférieure à celle de l'enveloppe tubulaire et que
• la bague de fixation vient se monter à force dans ladite gorge.

According to another variant of the invention, a peripheral groove, which may have in section a substantially rectangular, hemispherical or semi-elliptical shape, is hollowed out in the thickness of the wall of the tubular casing of the container so that:

• the thickness of the tubular casing inside the groove is modified, and is less than that of the tubular casing and that
• the fixing ring is forced into said groove.

According to another variant of the invention, the inner surface of the fixing ring has latching means which, when said fixing ring is force-fitted in the groove of the tubular casing of the container, itself equipped with complementary latching means, are embedded in the corresponding latching means to block any rotation or translation of the plug relative to the container.

Said detent means present on the inner surface of the fixing ring and on the inner surface of the container groove may be of various types such as splines, grooves or the like.

According to the invention, a relatively rigid hinge-type connection means is present between the closure means (or plug-cover) and the mounting means (a fixing ring) on the tubular casing of the orifice access to the container.

The hinge type connecting means, according to the invention, is formed of two film hinges spaced from one another, and giving rigidity to the connection between the cap-cover and the fixing ring, due to their spacing.

Each film hinge is formed of two parts interconnected by a polymer film acting as an axis of rotation allowing the opening / closing cycles of the closure means, one of the parts being integrated by means of shutter, the other part being integrated in the mounting means.

The two parts of each of the two hinges integrated in the closure means and the mounting means constitute brackets for fixing the two hinges-film on the closure means and the mounting means.

These two types of hinge-film ensure the best operation at closing (as well as opening) of the establishment of the cap-cover on the envelope of the orifice to be closed by the use of a only finger of the hand holding the container, thanks to a perfect mechanical guidance of said cap-lid, requiring, to complete the closure, only a vertical pressure from top to bottom, which causes the snap of the cap-lid. It should be noted that, according to the state of the art, removable plugs or caps-lids linked by a single hinge-film to the tubular casing, require, for their closure or opening, the use of both hands.

These two film hinges spaced apart from each other constitute a precision hinge for closing the desiccant lid-cap since, thanks to the rigidity they create by their spacing, they guide the desiccant lid-lid up to its complete closure in a perfect trajectory, resulting in the snap of the lid cap by simple vertical pressure.

• soit de micro-liens reliant la surface périphérique inférieure du bouchon-couvercle à la surface périphérique supérieure de la bague de fixation, ces micro-liens étant des micro-points de liaison, indépendants les uns des autres mais formant une couronne dentée périphérique de liaison entre le moyen d'obturation dessicatif et le moyen de montage sur l'enveloppe tubulaire de l'orifice du conteneur, micro-points qui sont rompus lors de la première ouverture par l'application d'une force de rupture exercée sur la visière dans le sens du bas vers le haut,
• soit d'une bague d'inviolabilité à arracher reliant la surface périphérique inférieure du bouchon-couvercle à la surface périphérique supérieure à la bague de fixation,
• soit des deux moyens d'inviolabilité précités, formant une combinaison nouvelle de moyens d'inviolabilité.

According to the invention, the inviolability or tamper proof means is formed:

• either micro-links connecting the lower peripheral surface of the cap-cover to the upper peripheral surface of the fixing ring, these micro-links being micro-points of connection, independent of each other but forming a peripheral ring gear connection between the desiccant sealing means and the mounting means on the tubular casing of the opening of the container, micro-points which are broken during the first opening by the application of a breaking force exerted on the visor in the direction from the bottom to the top,
• either a tamper-evident ring connecting the lower peripheral surface of the cap-cover to the upper peripheral surface to the fixing ring,
• either of the two aforementioned inviolability means, forming a new combination of inviolability means.

According to the invention, a spring-effect mechanical means for assisting the opening or closing of the sealing and treatment means, is placed in the space between the two hinges-films previously mentioned. This mechanical means has the sectional appearance of a bracket whose angle is of the order of 90 °.

This mechanical spring means for assisting the opening and closing of the sealing and treatment means also controls the amplitude of the opening angle of the sealing means, so that, as soon as that it is at the end of its opening stroke, the closure means is easily driven in the closing direction by a finger of the same hand holding the container provided with the device according to the invention.

The mechanical spring means is simultaneously connected to the cover cap by a film hinge and to the fixing ring of the device according to the invention by another hinge-film.

The preferred amplitude of the opening angle controlled by the mechanical spring means is at most 160 ° and generally between 90 ° and 160 ° by distinction with respect to the opening angle of a cap-lid of the state of the art which is around 180 ° and often beyond this value.

The mechanical spring means has the sectional appearance of a square which is tensioned. When the container is opened and closed, the square-shaped mechanical means undergoes a slight deformation at the attachment points of said mechanical means, that is to say at the level of the cap-lid and at the level of the fixing ring of the device: the angular deformation of the mechanical means at right angle is the same on each side of the square and is of the order of at most 15 ° of each side and preferably of the order of at most 9 ° on each side.

The observed deformation of the angle formed by the bracket between its closed position and its open position is then between 0 and at most 30 ° and preferably between 0 and at most 18 °.

Thus, this means of mechanical assistance to the opening or closing of the shutter means of particular shape is characterized by its great flexibility of operation and allows closure of said shutter means smoothly, without violent jerk, and a precise and controlled guidance of the cap-lid during closure.

The sealing and treatment device according to the invention for the sealed sealing of containers intended for the packaging of products sensitive to ambient humidity, consisting of a means for sealing and treatment, a means for mounting the closure means on the orifice to be closed, a means for connecting the closure means and the mounting means, at least one tamper-proof means and a means of mechanical assistance to the opening and closing the closure means and controlling the opening angle of the closure means, is made in one piece by methods of the plastics adapted to its realization by means of materials which are polymers and thermoplastic copolymers such as, for example, polyethylenes (PE), polypropylenes (PP), ethylene / propylene copolymers and their mixtures, polyamides (PA), polystyrenes (PS), acrylonitrile-butadiene copolymers Styrene (ABS), copolymers styrene-acrylonitrile (SAN), polyvinylchlorides (PVC), polycarbonates (PC), polymethylmethacrylate (PMMA), polyethyleneterephthalates (PET), used alone or in mixture according to their compatibility.

To these polymers and / or copolymers may be associated for the realization of the device and according to the desired mechanical characteristics, at least one thermoplastic elastomer of natural or synthetic origin. The elastomer (s) used may be chosen preferentially from the group consisting of elastomers of natural rubber, synthetic rubber type, in particular olefin-based rubbers, such as, for example, isobutylene / isoprene polymers, ethylene-vinyl acetate (EVA), ethylene-propylene (EPR), ethylene-propylene-diene (EPDM), ethylene-acrylic esters (EMA-EEA), fluorinated polymers, diolefin rubbers, such as, for example, polybutadienes, butadiene-styrene copolymers (SBR), based on condensation products such as, for example, thermoplastic polyesters and polyurethanes rubbers, silicones, styrene rubbers, styrene-butadiene-styrene (SBS) and styrene-isoprene-styrene (SIS) and others.

According to the invention, the sealing and treatment device and the packaging container to be closed can be made with polymer materials of the same composition or with polymer materials of different compositions.

• La figure 1 est une vue, en perspective du dispositif d'obturation étanche et de traitement, en position ouverte.
• La figure 2 est une vue de niveau en perspective du profil du dispositif d'obturation étanche et de traitement en position fermée, avant première ouverture, mettant en évidence le moyen d'inviolabilité.
• La figure 3 est une vue en perspective par-dessous du dispositif d'obturation étanche et de traitement en position fermée comportant un système sécuritaire d'ouverture à l'égard des enfants.
• La figure 4 est une vue plongeante en perspective orientée sur la partie avant du dispositif d'obturation étanche et de traitement.
• La figure 5 est une vue de niveau de la partie avant du dispositif d'obturation étanche et de traitement.
• La figure 6 est une vue plongeante en perspective orientée sur la partie arrière du dispositif d'obturation étanche et de traitement.
• La figure 7 est une vue de niveau de la partie arrière du dispositif d'obturation étanche et de traitement.
• La figure 8 est une vue en coupe diamétrale selon le sens charnière-visière du bouchon-couvercle.
• La figure 9 est une vue en perspective du dispositif d'obturation étanche et de traitement selon l'invention en position ouverte à 120° monté sur un conteneur à enveloppe tubulaire.
• La figure 10 est une vue en perspective de coté du dispositif d'obturation étanche en position ouverte.
• La figure 11 est une vue en coupe du détail de fixation de la bague au conteneur selon une variante de l'invention.
• La figure 12 est une vue en coupe du détail de fixation de la bague au conteneur selon une autre variante de l'invention.

The invention will be better understood thanks to the numerical description of the figures below, these figures having only an illustrative non-limiting character of a particular device of the invention.

• The figure 1 is a perspective view of the sealing device and treatment, in the open position.
• The figure 2 is a perspective view of the profile of the sealing device and treatment in the closed position, before first opening, highlighting the inviolability means.
• The figure 3 is a perspective view from below of the closed sealing and treatment device including a safe opening system for children.
• The figure 4 is a perspective plunging view oriented on the front part of the sealing device and treatment.
• The figure 5 is a level view of the front portion of the sealing and treatment device.
• The figure 6 is a perspective plunging view oriented on the rear part of the sealing device and treatment.
• The figure 7 is a level view of the rear part of the sealing and treatment device.
• The figure 8 is a diametral sectional view in the hinge-visor direction of the cap-lid.
• The figure 9 is a perspective view of the sealing device and treatment according to the invention in the open position at 120 ° mounted on a tubular casing container.
• The figure 10 is a side perspective view of the sealing device in the open position.
• The figure 11 is a sectional view of the fastening detail of the ring to the container according to a variant of the invention.
• The figure 12 is a sectional view of the fastening detail of the ring to the container according to another variant of the invention.

According to Figures 1 to 10 , the sealing device and treatment for containers consists of a closure means (1) which is a cap-cover, a mounting means (2) of the closure means (1), on the access orifice (4) of the container (5) which is a mounting ring and a connecting means (3) between the closure means (1) and the mounting means (2), this means link being constituted by hinges-films (6) and (7), finally a means of inviolability. (8) at first opening and a mechanical aid means (9) for opening and closing the cap-lid (1), also ensuring the control of the opening angle of said cap-lid.
The closure means (1) which is of the cap-lid type has an upper end wall (10) constituting its ceiling, provided with two peripheral and tubular walls, concentric and coaxial, one of which is said outer wall (11). ), the other inner wall (12).

The outer wall (11), peripheral and tubular, creates an intimate peripheral sealing contact area, surface-to-surface, by establishing a sealing barrier between the inner face (13) of the envelope tubular access port and the outer face of said outer wall (11).

The sectional shape of this first wall (11) reveals an outwardly directed peripheral bulge (14) intended to be in contact with the inner face (13) of the tubular envelope of the orifice of the container.

When the cap-lid (1) is placed in closed position, the peripheral bulge (14) of the first wall (11) comes into force contact with the inner face (13) of the tubular casing of the orifice, undergoing a certain deformation and crushing effect which causes an increase in the contact area of the peripheral bulge (14) with the inner face (13) of the tubular casing, the surface-to-surface contact becoming total, intimate and immediate to closing by sliding and crushing the wall (11) on the wall (13) creating a complete seal.

The second wall, called the inner wall (12), which is peripheral and preferably tubular, constitutes an appropriate housing (15) for receiving a treatment agent for gaseous pollutants, in particular a desiccant, the particular position of this housing being decisive for increasing the kinetics of elimination of said gaseous pollutants.
This suitable housing (15) is located on the inner face of the cap-lid, and is closed by a non-gastight closure means to ensure the rapid treatment of the ambient gaseous atmosphere and the elimination of pollutants to the environment. sensitive products packaged in the container.

To facilitate the operation of opening and closing the cover cap (1), the lower plane edge of the outer peripheral wall may be extended by a gripping visor (17).

A safe opening system for children, in order to make it difficult or impossible for them to open the lid-cap, can be installed in line with the visor (17). This device is a flexible blade (23) forming an integral part of the mounting means and is in the form of a protrusion establishing a vacuum between it and the mounting means. This flexible blade is placed below the visor by following the profile so that the protrusion of the visor for exerting a vertical thrust to assume its opening is careened by the flexible blade in the absence of stress. Therefore access to the visor can be done only after exerting pressure on the blade to cause deformation and release access to said visor. By such a means, the protection of the child is ensured by the necessary two complementary gestures to be performed, and to exercise simultaneously, the first gesture being a horizontal pressure on the flexible blade, the second being a vertical pushing action from below to high on the unobstructed visor, thanks to the maintenance of the pressure on the flexible blade.

• ayant un dimensionnement adapté à celui de l'enveloppe tubulaire,
• étant munie sur sa face interne, destinée à être au contact de la surface externe de l'enveloppe d'un moyen d'encliquetage en relief (18), à l'égard de la face externe de l'enveloppe, sur laquelle le moyen permettant l'encliquetage de la bague est à l'opposé, c'est-à-dire en creux.

The mounting means (2) of the cap-lid (1) is formed of a fixing ring (2) which is mounted on the tubular casing of the access port to the container to be sealed, this ring:

• having a dimensioning adapted to that of the tubular envelope,
• being provided on its inner face, intended to be in contact with the outer surface of the envelope of a relief snap-fastening means (18), with respect to the outer face of the envelope, on which the means allowing the snap of the ring is the opposite, that is to say hollow.

• l'épaisseur de l'enveloppe tubulaire à l'intérieur de la gorge n'est pas modifiée, et que
• la bague de fixation (2) vient se monter à force dans ladite gorge (25).

According to a variant of the invention shown on the figure 11 , the outer peripheral surface of the tubular casing (24) of the orifice (4) for access to the container to be closed comprises two projecting peripheral flanges (26) and (27), separated from one another by creating a groove (25) having a substantially rectangular shape in section such that:

• the thickness of the tubular casing inside the groove is not changed, and that
• the fixing ring (2) is forced into said groove (25).

• l'épaisseur de l'enveloppe tubulaire à l'intérieur de la gorge est modifiée, et est inférieure à celle de l'enveloppe tubulaire et que
• la bague de fixation (2) vient se monter à force dans ladite gorge (25).
  Le moyen de liaison (3) de type charnière relativement rigide, est présent entre le moyen d'obturation (1) et le moyen de montage (2) sur l'enveloppe tubulaire de l'orifice d'accès au conteneur (4).

According to another variant of the invention shown in the figure 12 a circumferential groove (25), which may have a substantially rectangular, hemispherical or semi-elliptical shape, is hollowed out in the thickness of the wall of the tubular envelope (25) of the container such that:

• the thickness of the tubular casing inside the groove is modified, and is less than that of the tubular casing and that
• the fixing ring (2) is forced into said groove (25).
  The relatively rigid hinge type connecting means (3) is present between the closure means (1) and the mounting means (2) on the tubular casing of the container access port (4).

This connecting means (3) of the hinge type, according to the invention, is formed of two hinges-films (6) and (7) spaced apart from each other, and giving rigidity to the connection between the plug -cover (1) and the fixing ring (2).

Each film hinge (6) and (7) is formed of two parts interconnected by a polymer film acting as an axis of rotation (19) and (20) allowing the cycles opening / closing of the closure means, one of the parts being integrated in the closure means (1), the other part being integrated in the mounting means (2).

The two parts of each of the two hinges (6) and (7) integrated in the closure means (1) and the mounting means (2) constitute brackets for fixing the two hinges-film on the closure means and the mounting medium.

These two types of film hinge (6) and (7) ensure the best operation at closing (as well as opening) of the installation of the cap-lid (1) on the orifice (4) of the envelope to be sealed by the use of a single finger of the hand holding the container, thanks to a perfect mechanical guidance of said cap-lid, requiring, to complete the closure, only a vertical pressure from the top to the the bottom, which causes the snap of the cap-lid.

The tamper-proof means (8) or tamper-proof means is formed of micro-links connecting the lower peripheral surface of the cap-lid (1) to the upper peripheral surface of the fixing ring (2), these micro-wires links being micro-points of connection, independent of each other, forming a peripheral ring gear connecting the desiccant sealing means and the mounting means on the tubular casing of the orifice of the container, which ring is broken during the first opening by lifting the cap-lid by means of the visor (17).

The mechanical spring means (9) for assisting the opening or closing of the desiccant sealing means (1) is placed in the space between the two film hinges (6) and (7) and has the sectional appearance of a square.

This spring-acting mechanical means (9) also controls the amplitude of the opening angle of the closure means (1), which is in this case at 120 °, so that, from its position of end of stroke at 120 °, the closure means is easily driven in the direction of closure by a finger of the hand holding the container provided with the closure device.

The mechanical spring means (9) is simultaneously connected to the cover cap (1) by a film hinge (21) and to the fixing ring (2) of the device according to the invention by another hinge-film (22). ).

1. 1. Dispositif pour l'obturation étanche et de traitement de purification de l'air ambiant s'y trouvant, de conteneurs de conditionnement de produits sensibles aux agents polluants ambiants, à amplitude de l'angle d'ouverture contrôlée, et à assistance mécanique d'ouverture et fermeture, réalisé en matériaux polymères thermoplastiques, ledit dispositif étant à installer sur l'enveloppe tubulaire de l'orifice d'accès desdits conteneurs, comprenant : - un moyen d'obturation (1) étanche de l'orifice d'accès du conteneur, disposant sur sa face interne d'un moyen de conditionnement d'un agent de traitement de l'air ambiant, - un moyen de montage (2) du moyen d'obturation sur l'enveloppe tubulaire de l'orifice d'accès, - un moyen de liaison (3) entre le moyen d'obturation et le moyen de montage, - un moyen d'inviolabilité à première ouverture (8), placé entre le moyen d'obturation (1) et le moyen de montage (2) caractérisé en ce qu'il comporte : a) comme moyen d'obturation de l'orifice de l'enveloppe tubulaire du conteneur, un bouchon-couvercle (1), de type mâle se composant d'une paroi d'extrémité supérieure sur laquelle est montée une première paroi périphérique (11) coaxiale établissant un contact étanche avec la surface interne de l'enveloppe tubulaire de l'orifice d'accès (4) du conteneur (5), et une deuxième paroi (12) interne à la première, constituant le moyen de conditionnement des agents de traitement de l'air ambiant,
   b) comme moyen de montage du moyen d'obturation, une bague de montage (2) montée sur l'enveloppe tubulaire de l'orifice d'accès (4) dont la face interne est munie d'un moyen de fixation à l'égard de la face externe de l'enveloppe, c) comme moyen de liaison (3), entre le moyen de montage (2) et le moyen d'obturation (1), deux charnières (6 et 7) distinctes et espacées l'une de l'autre, d) comme moyen d'inviolabilité à première ouverture (8), une série périphérique de micro-points de liaison ou une bande périphérique à arracher, ou la combinaison de ces deux moyens, placée entre le moyen d'obturation et le moyen de montage. e) un moyen d'assistance mécanique (9) à l'ouverture et la fermeture et de contrôle de l'amplitude de l'angle d'ouverture du moyen d'obturation (1), placé dans l'espace situé entre les deux charnières (6) et (7), et lié simultanément au bouchon couvercle (1) par une charnière-film (21) et à la bague de fixation (2) du dispositif sur l'enveloppe (24) par une autre charnière-film (22), ledit moyen d'assistance mécanique ayant l'aspect en coupe d'une équerre.
2. 2. Dispositif selon le mode de réalisation 1 caractérisé en ce que la première paroi (11) périphérique coaxiale du moyen d'obturation (1) établissant le contact étanche avec la surface interne de l'enveloppe tubulure (24) de l'orifice (4) du conteneur (5) présente, en coupe, un renflement périphérique (14) se développant sur sa face externe.
3. 3. Dispositif selon le mode de réalisation 2 caractérisé en ce que le renflement périphérique externe (14) de la première paroi (11) subit une déformation au contact de la paroi interne de l'enveloppe tubulaire (24) de l'orifice (4) pour augmenter la surface de contact entre ces deux parois et renforcer l'étanchéité.
4. 4. Dispositif selon le mode de réalisation 1 caractérisé en ce que le moyen de conditionnement (12) des agents de traitement de l'air ambiant, placé sur la face interne du bouchon-couvercle (1) est préférentiellement de type tubulaire.
5. 5. Dispositif selon le mode de réalisation 4 caractérisé en ce que le moyen de conditionnement (12) des agents de traitement de l'air ambiant est muni d'alvéoles ouvertes destinées, chacune, à recevoir un agent de traitement ou un mélange d'agents de traitement.
6. 6. Dispositif selon l'un au moins des modes de réalisation 1,4 ou 5 caractérisé en ce que le moyen de conditionnement (12) des agents de traitement de l'air ambiant, contient des agents de traitement propres à éliminer les agents polluants gazeux, en particulier de la vapeur d'eau, de l"oxygêne (ou), de l'ammoniac (NH3), des alcools, des aldéhydes, des cétones, de l'anhydride sulfureux (S02), l'acide sulfhydrique (H2S), les mercaptans, les alcènes dont en particulier l'éthylène, les alcynes, le dioxyde de carbone (CO2), le monoxyde de carbone (CO), le dioxyde d'azote (N02), les alcanes dont en particulier le méthane (CH4), les halogènes dont en particulier le fluor, les bactéries présentes dans l'air ambiant.
7. 7. Dispositif selon le mode de réalisation 6, caractérisé en ce que quand l'agent polluant est de la vapeur d'eau, l'agent de traitement est choisi dans le groupe constitué par les gels de silice, les tamis moléculaires, se présentant sous une forme pulvérulente, ou déposés sur un support pulvérulent.
8. 8. Dispositif selon l'un au moins des modes de réalisation 1 à 7 caractérisé en ce que le bouchon-couvercle (1) est muni d'une visière de préhension (17).
9. 9. Dispositif selon l'un au moins des modes de réalisation 1 à 8 caractérisé en ce que le bouchon-couvercle (1) est muni d'un système sécuritaire d'ouverture (23) à l'égard des enfants.
10. 10. Dispositif le mode de réalisation 9 caractérisé en ce que le système sécuritaire est installé au droit de la visière (17).
11. 11. Dispositif selon les modes de réalisation 9 ou 10 caractérisé en ce que le système sécuritaire d'ouverture (23) est une lame souple de carénage de la visière faisant partie intégrante du moyen de montage (2).
12. 12. Dispositif selon l'un au moins des modes de réalisation 1 à 11 caractérisé en ce que la face interne de la paroi externe du bouchon-couvercle (1) et la face externe de la paroi externe de l'enveloppe tubulaire (24) de l'orifice d'accès (4) du conteneur (5) sont munies d'un moyen d'encliquetage.
13. 13. Dispositif selon l'un au moins des modes de réalisation 1 à 12 caractérisé en ce que le moyen de montage (2) du bouchon-couvercle (1) est une bague de fixation (2) montée sur l'enveloppe tubulaire (24) de l'orifice d'accès (4), munie sur sa face interne d'un moyen d'encliquetage à l'égard de la face externe de l'enveloppe tubulaire (24), sur laquelle se trouve également un moyen d'encliquetage.
14. 14. Dispositif selon l'un au moins des modes de réalisation 1 à 13 caractérisé en ce que le moyen de montage (2) est monté à force sur l'enveloppe tubulaire (24).
15. 15. Dispositif selon l'un au moins des modes de réalisation 1 à 12 caractérisé en ce que le moyen de montage (2) est monté par collage sur l'enveloppe tubulaire (24).
16. 16. Dispositif selon l'un au moins des modes de réalisation 1 à 12 caractérisé en ce que la surface périphérique externe de l'enveloppe tubulaire (24) de l'orifice d'accès au conteneur à obturer comporte deux collerettes périphériques en saillie (26) et (27), séparées l'une de l'autre en créant une gorge (25) présentant en coupe une forme sensiblement rectangulaire, l'épaisseur de l'enveloppe tubulaire à l'intérieur de la gorge n'étant pas modifiée, et la bague de fixation (2) venant se monter à force dans ladite gorge (25).
17. 17. Dispositif selon l'un au moins des modes de réalisation 1 à 12 caractérisé en ce qu'une gorge périphérique (25), pouvant présenter en coupe une forme sensiblement rectangulaire, hémisphérique ou hémielliptique, est réalisée en creux dans l'épaisseur de la paroi de l'enveloppe tubulaire du conteneur (24), l'épaisseur de l'enveloppe tubulaire à l'intérieur de la gorge étant modifiée, et étant inférieure à celle de l'enveloppe tubulaire et la bague de fixation venant se monter à force dans ladite gorge.
18. 18. Dispositif selon l'un au moins des modes de réalisation 16 à 17 caractérisé en ce que là surface interne de la bague de fixation présente des moyens d'encliquetage qui, lorsque ladite bague de fixation est monté à force dans la gorge du conteneur, elle-mme équipée de moyens d'encliquetage complémentaires, viennent s'encastrer dans les moyens d'encliquetage correspondant afin de bloquer toute rotation ou translation du bouchon par rapport au conteneur.
19. 19. Dispositif selon le mode de réalisation 18 caractérisé en ce que lesdits moyens d'encliquetage présents sur la surface interne de la bague de fixation et sur la surface interne de la gorge du conteneur sont des cannelures ou des rainures.
20. 20. Dispositif selon l'un au moins des modes de réalisation 1 à 19 caractérisé en ce que les deux charnières (6) et (7) du moyen de liaison (3) sont des charnières-films.
21. 21. Dispositif selon le mode de réalisation 20 caractérisé en ce que chaque charnière-film (6) ou (7) est formée de deux parties formant potences reliées entre elles par un film polymère jouant le rôle d'un axe de rotation permettant les cycles d'ouverture/fermeture du moyen d'obturation, l'une des parties étant intégrée au moyen d'obturation, l'autre partie étant intégrée au moyen de montage.
22. 22. Dispositif selon l'un au moins des modes de réalisation 1 à 21 caractérisé en ce que l'amplitude de l'angle d'ouverture contrôlée par le moyen d'assistance mécanique (9) est d'au plus 160 et préférentiellement compris entre 90 et 160 .
23. 23. Dispositif selon l'un au moins des modes de réalisation 1 à 22 caractérisé en ce que la déformation angulaire du moyen d'assistance mécanique en forme d'équerre entre sa position fermée et sa position ouverte est comprise entre 0 et au maximum 30 et préférentiellement--entre 0 et au maximum 18 .
24. 24. Dispositif selon l'un au moins des modes de réalisation 1 à 23 caractérisé en ce qu'il est réalisé au moyen de compositions polymères thermoplastiques issues du groupe constitué par les polyéthylènes (PE), les polypropylènes (PP), les copolymères d'éthylène/propylène et leurs mélanges, les polyamides (PA), les polystyrènes (PS), les copolymères d'acrylonitrile-butadiène-styrène (ABS), les copolymères de styrène-acrylonitrile (SAN), les polyvinylchlorures (PVC), les polycarbonates (PC), les polyméthacrylate de méthyl' (PMMA), les polyéthylènetéréphtalates (PET), mis en oeuvre seuls ou en mélange.
25. 25. Dispositif selon le mode de réalisation 24 caractérisé en ce que, aux compositions thermoplastiques, sont associés au moins un élastomère d'origine naturelle ou synthétique, le ou les élastomères mis en oeuvre pouvant tre choisis préférentiellement dans le groupe constitué par des élastomères de type caoutchoucs naturels, caoutchouc synthétique, en particulier les caoutchoucs de mono oléfines, que sont les polymères d'isobutylène/isoprène, éthylène-acétate de vinyle (EVA), éthylène-propylène (EPR), éthylène-propylène-diène (EPDM), éthylène-esters acryliques (EMA- EEA), les polymères fluorés, les caoutchoucs de dioléfines, que sont les polybutadiènes, les copolymères de butadiène-styrène (SBR), les caoutchoucs à base de produits de condensation que sont les caoutchoucs thermoplastiques polyesters et polyuréthanes, les silicones, les caoutchoucs styréniques, styrène-butadiène-styrène (SBS) et styrène-isoprène-styrène (SIS).
26. 26. Dispositif selon l'un au moins des modes de réalisation 1 à 25' caractérisé en ce qu'il est réalisé en une seule pièce selon les méthodes de la plasturgie.
27. 27. Application du dispositif selon les modes de réalisation 1 à 26 pour l'obturation étanche et le traitement de purification de l'air ambiant, de conteneurs de conditionnement de produits sensibles à des agents polluants gazeux.

The following paragraphs recite specific embodiments of the invention.

1. 1. Apparatus for sealing and purification treatment of the ambient air therein, packaging containers of products sensitive to ambient pollutants, controlled opening angle amplitude, and mechanical assistance opening and closing device, made of thermoplastic polymer materials, said device being to be installed on the tubular casing of the access orifice of said containers, comprising: - a sealing means (1) sealed from the orifice of access of the container, having on its inner side a conditioning means of an ambient air treatment agent, a mounting means (2) of the closure means on the tubular envelope of the orifice of access, - a connecting means (3) between the closure means and the mounting means, - a first-opening tamperproof means (8), placed between the closure means (1) and the means for assembly (2), characterized in that it comprises: a) as a closure means ion of the port of the tubular casing of the container, a cap-lid (1), male type consisting of an upper end wall on which is mounted a first peripheral wall (11) coaxial establishing a tight contact with the inner surface of the tubular casing of the access port (4) of the container (5), and a second wall (12) internal to the first, constituting the means of conditioning the air treatment agents ambient,
   b) as a means for mounting the closure means, a mounting ring (2) mounted on the tubular casing of the access orifice (4) whose inner face is provided with a fixing means to the with regard to the external face of the envelope, c) as connection means (3), between the mounting means (2) and the closure means (1), two hinges (6 and 7) which are separate and spaced apart; d) as a first-opening tamper-evident means (8), a peripheral series of micro-points of connection or a peripheral strip to be torn off, or the combination of these two means, placed between the closure means and the mounting means. e) means for mechanical assistance (9) for opening and closing and for controlling the amplitude of the opening angle of the closing means (1), placed in the space between the two hinges (6) and (7), and simultaneously connected to the cover cap (1) by a film hinge (21) and to the fixing ring (2) of the device on the casing (24) by another hinge-film (22), said mechanical assistance means having the sectional appearance of a square.
2. 2. Device according to embodiment 1 characterized in that the first coaxial peripheral wall (11) of the closure means (1) establishing the sealing contact with the inner surface of the tubular envelope (24) of the orifice ( 4) of the container (5) has, in section, a peripheral bulge (14) developing on its outer face.
3. 3. Device according to embodiment 2 characterized in that the outer peripheral bulge (14) of the first wall (11) undergoes deformation in contact with the inner wall of the tubular casing (24) of the orifice (4). ) to increase the contact area between these two walls and enhance the seal.
4. 4. Device according to embodiment 1 characterized in that the conditioning means (12) of the ambient air treatment agents, placed on the inner face of the cap-lid (1) is preferably of the tubular type.
5. 5. Device according to embodiment 4 characterized in that the conditioning means (12) of the ambient air treatment agents is provided with open cells each intended to receive a treatment agent or a mixture of treatment agents.
6. 6. Device according to at least one of embodiments 1.4 or 5 characterized in that the conditioning means (12) ambient air treatment agents, contains treatment agents suitable for removing gaseous pollutants, in particular water vapor, oxygen (or), ammonia (NH 3), alcohols , aldehydes, ketones, sulfur dioxide (SO2), hydrogen sulfide (H2S), mercaptans, alkenes, especially ethylene, alkynes, carbon dioxide (CO2), monoxide carbon (CO), nitrogen dioxide (N02), alkanes including methane (CH4), halogens including fluorine, bacteria in the air.
7. 7. Device according to embodiment 6, characterized in that when the pollutant is water vapor, the treatment agent is selected from the group consisting of silica gels, molecular sieves, which are in a powder form, or deposited on a powdery support.
8. 8. Device according to at least one of embodiments 1 to 7 characterized in that the cap-lid (1) is provided with a gripping visor (17).
9. 9. Device according to at least one of embodiments 1 to 8 characterized in that the cap-lid (1) is provided with a safe opening system (23) with respect to children.
10. 10. Device embodiment 9 characterized in that the security system is installed in the right of the visor (17).
11. 11. Device according to embodiments 9 or 10 characterized in that the safe opening system (23) is a flexible blade fairing of the visor forming an integral part of the mounting means (2).
12. 12. Device according to at least one of embodiments 1 to 11 characterized in that the inner face of the outer wall of the lid-cap (1) and the outer face of the wall outer of the tubular casing (24) of the access port (4) of the container (5) are provided with a latching means.
13. 13. Device according to at least one of embodiments 1 to 12 characterized in that the mounting means (2) of the cover cap (1) is a fixing ring (2) mounted on the tubular casing (24). ) of the access opening (4), provided on its inner face with a latching means with respect to the external face of the tubular casing (24), on which is also a means of snap.
14. 14. Device according to at least one of embodiments 1 to 13 characterized in that the mounting means (2) is mounted by force on the tubular casing (24).
15. 15. Device according to at least one of embodiments 1 to 12 characterized in that the mounting means (2) is mounted by gluing on the tubular casing (24).
16. 16. Device according to at least one of embodiments 1 to 12 characterized in that the outer peripheral surface of the tubular casing (24) of the access port to the container to be closed comprises two projecting peripheral flanges ( 26) and (27), separated from each other by creating a groove (25) having in cross section a substantially rectangular shape, the thickness of the tubular envelope inside the groove not being modified , and the fixing ring (2) being forced into said groove (25).
17. 17. Device according to at least one of embodiments 1 to 12 characterized in that a peripheral groove (25), which may have in cross section a substantially rectangular shape, hemispherical or semi-elliptical, is made hollow in the thickness of the wall of the tubular casing of the container (24), the thickness of the tubular casing inside the groove being modified, and being smaller than that of the tubular casing and the fixing ring coming to force in said groove.
18. 18. Device according to at least one of embodiments 16 to 17 characterized in that the inner surface of the fixing ring has latching means which, when said fixing ring is mounted by force in the groove of the container. , itself equipped with complementary latching means, are embedded in the corresponding latching means to block any rotation or translation of the plug relative to the container.
19. 19. Device according to embodiment 18 characterized in that said latching means present on the inner surface of the fixing ring and on the inner surface of the groove of the container are grooves or grooves.
20. 20. Device according to at least one of embodiments 1 to 19 characterized in that the two hinges (6) and (7) of the connecting means (3) are film hinges.
21. 21. Device according to embodiment 20 characterized in that each film hinge (6) or (7) is formed of two parts forming brackets interconnected by a polymer film acting as a rotation axis for cycles opening / closing of the closure means, one of the parts being integrated in the closure means, the other part being integrated in the mounting means.
22. 22. Device according to at least one of embodiments 1 to 21 characterized in that the amplitude of the opening angle controlled by the mechanical assistance means (9) is at most 160 and preferably included between 90 and 160.
23. 23. Device according to at least one of embodiments 1 to 22 characterized in that the angular deformation of the square-shaped mechanical assistance means between its closed position and its open position is between 0 and at most 30 and preferentially - between 0 and maximum 18.
24. 24. Device according to at least one of embodiments 1 to 23 characterized in that it is produced by means of thermoplastic polymer compositions from the group consisting of polyethylenes (PE), polypropylenes (PP), copolymers d ethylene / propylene and their mixtures, polyamides (PA), polystyrenes (PS), acrylonitrile-butadiene-styrene copolymers (ABS), styrene-acrylonitrile copolymers (SAN), polyvinylchlorides (PVC), polycarbonates (PC), polymethyl methacrylate (PMMA), polyethylene terephthalates (PET), used alone or as a mixture.
25. 25. Device according to embodiment 24, characterized in that the thermoplastic compositions are associated with at least one elastomer of natural or synthetic origin, the elastomer (s) used being preferably chosen from the group consisting of elastomers of natural rubbers, synthetic rubber, in particular monoolefin rubbers, namely isobutylene / isoprene, ethylene-vinyl acetate (EVA), ethylene-propylene (EPR), ethylene-propylene-diene (EPDM) polymers, acrylic ethylene-esters (EMA-EEA), fluoropolymers, diolefin rubbers, which are polybutadienes, butadiene-styrene copolymers (SBR), condensation-based rubbers that are thermoplastic polyesters and polyurethanes rubbers silicones, styrene rubbers, styrene-butadiene-styrene (SBS) and styrene-isoprene-styrene (SIS).
26. 26. Device according to at least one of embodiments 1 to 25 ' characterized in that it is made in one piece according to the methods of the plastics industry.
27. 27. Application of the device according to embodiments 1 to 26 for sealing and purification treatment of the ambient air, packaging containers of products sensitive to gaseous pollutants.

Claims (15)

Combination of a device for sealing and purification treatment of the ambient air and a container for packaging products sensitive to ambient pollutants, the device being at a controlled angle of opening angle, and mechanical assistance opening and closing, made of thermoplastic polymer materials, preferably in one piece according to the methods of the plastics industry, said device being to be installed on the tubular casing of the access port of said containers, comprising: sealing means (1) sealing the access orifice of the container, having on its inner face a means of conditioning an ambient air treatment agent, a means (2) for mounting the closure means on the tubular casing of the access orifice, a connection means (3) between the closure means and the mounting means, a tampering means with a first opening (8) placed between the closure means (1) and the mounting means (2), characterized in that the combination comprises: a) as a means for closing the orifice of the tubular casing of the container, a cap-lid (1), of the male type consisting of an upper end wall on which is mounted a first peripheral wall (11); ) coaxially in sealing contact with the inner surface of the tubular casing of the access port (4) of the container (5), and a second wall (12) internal to the first, constituting the means of conditioning the ambient air treatment agents, b) as a means for mounting the closure means, a mounting ring (2) mounted on the tubular casing of the access orifice (4), the inner face of which is provided with a fixing means regard to the outer face of the envelope, c) as connecting means (3), between the mounting means (2) and the closure means (1), two hinges (6 and 7) separate and spaced from each other, d) as a means for tampering with a first opening (8), a peripheral series of connecting micro-points or a peripheral strip to be torn off, or the combination of these two means, placed between the closure means and the mounting means , e) means for mechanical assistance (9) for opening and closing and for controlling the amplitude of the opening angle of the closing means (1), placed in the space between the two hinges (6) and (7), and simultaneously connected to the cover cap (1) by a film hinge (21) and to the fixing ring (2) of the device on the casing (24) by another hinge-film (22), said mechanical assistance means having the sectional appearance of a square, and f) a latching means on the inner face of the outer wall of the cap-lid (1) and on the outer face of the outer wall of the tubular casing (24) of the access port (4) of the container (5). Combination according to claim 1 characterized in that the first coaxial peripheral wall (11) of the closure means (1) establishing the sealing contact with the inner surface of the tubular envelope (24) of the orifice (4) of the container (5) has, in section, a peripheral bulge (14) developing on its outer face. Device according to claim 2 characterized in that the outer peripheral bulge (14) of the first wall (11) undergoes a deformation in contact with the inner wall of the tubular casing (24) of the orifice (4) to increase the contact surface between these two walls and strengthen the seal. Combination according to at least one of claims 1 to 3 characterized in that the cap-lid (1) is provided with a gripping visor (17). Combination according to at least one of claims 1 to 4 characterized in that the cap-lid (1) is provided with a safe opening system (23) with regard to children. Combination according to claim 5, characterized in that the security system is installed in line with the visor (17). Combination according to claims 5 or 6 characterized in that the safe opening system (23) is a flexible blade of the shroud of the visor forming an integral part of the mounting means (2). Combination according to at least one of claims 1 to 13 characterized in that the mounting means (2) is mounted either by force or by gluing on the tubular casing (24). Combination according to at least one of claims 1 to 8 characterized in that the outer peripheral surface of the tubular casing (24) of the access port to the container to be closed comprises two projecting peripheral flanges (26) and ( 27), separated from each other by creating a groove (25) having in cross section a substantially rectangular shape, the thickness of the tubular envelope inside the groove not being modified, and the ring fixing device (2) coming to be forced into said groove (25). Combination according to at least one of Claims 1 to 8, characterized in that a circumferential groove (25), which may have a substantially rectangular, hemispherical or semi-elliptical shape, is hollowed out in the thickness of the wall of the wall. tubular casing of the container (24), the thickness of the tubular casing inside the groove being modified, and being less than that of the tubular casing and the fixing ring being forced into said groove . Combination according to at least one of Claims 9 to 10, characterized in that the inner surface of the fastening ring has snap-fastening means which, when the fastening ring is forcibly fitted into the groove of the container, itself equipped with complementary latching means, are embedded in the corresponding latching means to block any rotation or translation of the cap relative to the container. Combination according to claim 11 characterized in that said latching means present on the inner surface of the fixing ring and on the inner surface of the groove of the container are grooves or grooves. Combination according to at least one of claims 1 to 12 characterized in that the two hinges (6) and (7) of the connecting means (3) are film hinges. Combination according to at least one of claims 1 to 13 characterized in that the amplitude of the opening angle controlled by the mechanical assistance means (9) is at most 160 and preferably between 90 and 160 . Combination according to at least one of claims 1 to 14, characterized in that the angular deformation of the square-shaped mechanical support means between its closed position and its open position is between 0 and at most 30 and preferably-- between 0 and maximum 18.

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