EP0879191A1 - Device for dispensing a fluid material from a sealed container - Google Patents

Device for dispensing a fluid material from a sealed container

Info

Publication number
EP0879191A1
EP0879191A1 EP97902272A EP97902272A EP0879191A1 EP 0879191 A1 EP0879191 A1 EP 0879191A1 EP 97902272 A EP97902272 A EP 97902272A EP 97902272 A EP97902272 A EP 97902272A EP 0879191 A1 EP0879191 A1 EP 0879191A1
Authority
EP
European Patent Office
Prior art keywords
reservoir
passage
tank
rest position
shoulder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97902272A
Other languages
German (de)
French (fr)
Other versions
EP0879191B1 (en
Inventor
Giuseppe Stradella
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RG SAS Di Rosaria Galli and Co
Tebro SA
Original Assignee
RG SAS Di Rosaria Galli and Co
Tebro SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RG SAS Di Rosaria Galli and Co, Tebro SA filed Critical RG SAS Di Rosaria Galli and Co
Publication of EP0879191A1 publication Critical patent/EP0879191A1/en
Application granted granted Critical
Publication of EP0879191B1 publication Critical patent/EP0879191B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2096—Combination of a vial and a syringe for transferring or mixing their contents
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3205—Separate rigid or semi-rigid containers joined to each other at their external surfaces
    • B65D81/3211—Separate rigid or semi-rigid containers joined to each other at their external surfaces coaxially and provided with means facilitating admixture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/202—Separating means
    • A61J1/2041—Separating means having removable plugs

Definitions

  • the present invention relates to a device for dispensing a fluid product, and more particularly a device for dispensing a liquid medicament contained in a hermetically closed container.
  • a device for dispensing a fluid product and more particularly a device for dispensing a liquid medicament contained in a hermetically closed container.
  • the liquid between the moment when it is placed in the reservoir of the device, and the moment when it is dispensed, that is to say during the storage period, tends to evaporate, or may be contaminated with external agents such as bacteria, or be oxidized by oxygen. In the case of certain drugs, this can lead to a total loss of its effectiveness.
  • a first type of device comprises a reservoir, the opening of which is closed by a membrane, said membrane being pierced or torn by a suitable device at the time of actuation of the device.
  • a suitable device at the time of actuation of the device.
  • Such systems are described in particular in documents EP-0 407 276 and US-4 017 007.
  • the disadvantage of these membrane devices lies in the fact that the membrane must be applied to the opening of the container with care, which requires a relatively assembly step complex after the tank has been filled. Thus, the liquid product contained in the reservoir is exposed to possible contamination for the time required to apply said membrane.
  • a rubber element, used as a pump piston is pierced at the time of actuation of the dispenser by a needle which is connected to the spray outlet of the dispenser.
  • the dimension of the piston must be such that it can slide relatively easily in the reservoir.
  • the interference between the piston and the reservoir i.e. the pressure exerted by the piston against the walls of the reservoir, and therefore the contact surface between these two elements, must also be as low as possible to avoid friction problems when actuating the dispenser, as well as to minimize the force required to actuate the dispenser.
  • This characteristic of low interference results in limited protection against evaporation under certain conditions, such as for example with high storage temperatures, and can also allow contamination of the product, for example by penetration of oxygen.
  • the object of the present invention is to provide a device for dispensing a fluid product which does not have the abovementioned drawbacks.
  • the present invention aims to provide a fluid dispensing device which simultaneously ensures an effective and hermetic closure of the product reservoir and which comprises a piston which can easily slide in said reservoir to ensure safe, reliable and easy actuation. from the distributor.
  • the present invention therefore relates to a device for dispensing a fluid product contained in a reservoir provided with an opening, said device comprising a movable element between a rest position, where it closes the opening of said reservoir, and a position actuator, means for connecting the interior of the reservoir to a product expulsion channel, and an actuator for moving said element towards its actuation position, said element sliding in leaktight manner in said reservoir so that the product is expelled through said expulsion channel, characterized in that said element comprises sealing means which, in the element's rest position, cooperate with it to increase the interference between the element and the reservoir thus guaranteeing a completely hermetic closure of the reservoir, said actuating member comprising means for moving said sealing means and ai nsi decrease the interference between the element and the reservoir, so that the element
  • the element acts, in its rest position, as a cap which hermetically seals the reservoir, and, when it moves towards its actuation position, acts as a piston to expel the product contained in the reservoir .
  • the actuating member comprises means for securing the element and the actuating member after displacement of the sealing means by said means for displacing.
  • said element is substantially cylindrical and has a substantially cylindrical passage connecting the interior of the reservoir, substantially cylindrical, to said expulsion channel, said sealing means comprising a closure member which seals said passage sealingly in the rest position of the element, said means for moving said closure member being adapted to open said passage.
  • said closure member has a diameter greater than that of the passage so that, in the stopper position, it compresses the external lateral surface of the element against the internal walls of the reservoir, thus increasing the interference between the element and the tank in said rest position.
  • said closure member is a ball which is force-fitted into the passage of the element after filling the reservoir.
  • said actuating member comprises a rod traversed by the expulsion channel, said rod being able to slide in leaktight manner in the passage to move said obturation member.
  • the end of said rod moves said closure member out of the passage in the tank, which has a recess for receiving said closure member.
  • said element further comprises blocking means which prevent movement of the element when it is in its rest position, said actuating member further comprising means for moving said blocking means.
  • said blocking means comprise an annular flange which, in the element's rest position, cooperates with the opening of the reservoir to prevent movement of the element in the reservoir.
  • the actuating member comprises, in extension of the rod, a shoulder whose outside diameter is less than the inside diameter of the reservoir, and, in extension of said shoulder, a groove, so that upon actuation of the actuating member, the rod slides in the passage of the element to move the shutter member first, then the shoulder cooperates with the outer radial surface of the element by exerting a force which urges said element towards its actuating position, said force being greater than the elasticity of the annular flange, so that the latter folds around said shoulder, in said groove, to allow the movement of the element in said tank.
  • the length formed by the addition of the radius of the shoulder and the thickness of the annular flange is approximately equal to the interior radius of the tank, so that the element can slide with sealing and with low friction in The reservoir.
  • said element is made of an elastomeric material.
  • FIG. 1 represents a schematic view in partial section of the dispensing device according to an advantageous embodiment of the invention, before
  • Figure 2 shows a view similar to that of Figure 1, during 1 actuation of the device.
  • the device comprises a reservoir 1, preferably substantially cylindrical, comprising an opening.
  • An element 2, preferably substantially cylindrical, is disposed in said reservoir 1 and is movable between a rest position, shown in FIG. 1, where it closes the opening of said reservoir 1, and an actuating position shown in FIG. 2.
  • This element 2 in its rest position, closes the reservoir in a completely hermetic manner and consequently prevents any contamination or any evaporation of the product contained in the reservoir 1. In this position, the element 2 therefore acts as a plug.
  • the device further comprises an actuating member adapted to move said element 2 towards its actuating position, said element 2 sliding in leaktight manner in said reservoir 1 during this displacement and therefore acting in this situation as a piston of the dispenser.
  • the dispensing device further comprises means for connecting the interior of the reservoir to a product expulsion channel 10 which is connected to the outlet of the dispenser (not shown).
  • the dispensing device object of the present invention, adapts to any type of product dispenser in which a product contained in a hermetically sealed reservoir must be dispensed, for example sprayed.
  • the element 2 is in its rest position in which it acts as a plug. It is made of a suitable elastomeric material, for example rubber, and has a passage 3 which passes through it axially, preferably at its center.
  • the passage 3 is preferably substantially cylindrical.
  • a closure member 5 is disposed in the passage 3 to close the reservoir of waterproof and totally airtight.
  • this shutter member 5 is spherical and can be produced for example in the form of a ball made of a suitable material such as stainless steel.
  • the device further comprises an actuating member 6 which comprises a rod 7 extending axially.
  • the actuating member 6 comprises an extension of said rod 7 a shoulder 8, and an extension of said shoulder 8, a recess 9, for example a groove.
  • This actuating member is traversed by a product expulsion channel 10, preferably axial, which is connected on the one hand to the dispensing outlet of the distributor and which opens on the other hand to the end of said rod 7
  • said rod 7 has a diameter very slightly greater than the inside diameter of passage 3 of element 2.
  • the actuating member 6 is connected to an actuating device such as a pusher (not shown) of the dispenser.
  • the element 2 further comprises locking means 4, preferably made in the form of an annular flange 4 which, in its position of rest of the element 2, cooperates with the reservoir 1 to prevent the displacement of the item 2 in the tank.
  • said annular flange 4 is made in one piece with the element 2 and is supported in the rest position of the element 2, on the upper end of the walls of the tank 1.
  • the operation of the device is as follows.
  • the actuating member 6 When the device is actuated, the actuating member 6 is moved relative to the reservoir 1, so that the end of the rod 7 pushes the ball 5 out of the passage 3 of the element 2.
  • the ball 5 when the ball 5 is expelled from the passage 3, it no longer exerts a compressive force on the side walls of the element 2 against the walls of the tank 1 and the interference between these two elements is greatly reduced.
  • the outside diameter of the rod 7 is such that the said rod 7 slides in leaktight manner in the said passage 3 and the length of the said rod 7 is such that the shoulder 8, arranged as an extension of the rod 7, comes to rest on the external radial surface of element 2 until after expulsion of said ball 5 from passage 3.
  • the diameter of the shoulder 8 is necessarily less than the inside diameter of the reservoir 1, to allow actuation of the dispensing device.
  • the dimension of said shoulder 8 is such that the length formed by the addition of the radius of the shoulder 8 and the thickness of the annular flange 4 is approximately equal to the interior radius of the tank 1, so that after that the annular flange 4 is folded around the shoulder 8, the outside diameter of the assembly, at the level of said shoulder 8, is approximately equal to the inside diameter of the reservoir 1.
  • the interference between the element 2 and the tank 1 is practically not increased by the presence of the annular flange 4.
  • the final folded position of the annular flange 5 therefore allows its penetration into the reservoir without causing significant friction and guarantees perfect efficiency between the element 2 and the actuating member 6.
  • the element 2 adopts its piston function and can slide in leaktight manner in the reservoir 1 with very low friction, which makes it possible to ensure safe, reliable and easy actuation of the dispensing device.
  • the reservoir 1 may include in its bottom a recess 1a intended to receive the closure member 5 after the latter has been expelled from the passage 3 by the rod 7 of the member actuation 6.
  • this recess is advantageously of substantially spherical shape.
  • the invention therefore makes it possible to guarantee the tightness of the product from its installation in the tank and until its distribution, throughout the duration of the storage, whatever the conditions, and during the entire distribution process. .

Landscapes

  • Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

A device for dispensing a fluid material from a container (1) provided with an opening is disclosed. The device comprises a member (2) movable between an inoperative position in which it seals the opening of said container (1), and an operative position, means for connecting the inside of the container (1) to a material discharge channel (10), and an actuating member (6) for moving said member (2) into the operative position. Said member (2) is sealingly slidable in the container (1) so that the material is driven out through said discharge channel (10), and comprises sealing means (5) engageable with the member (2) in the inoperative position in order to increase interference between the member (2) and the container (1) and thus completely seal said container (1). The actuating member (6) comprises means (7) for moving said sealing means (5) to reduce the interference between the member (2) and the container (1) so that the member (2) moves with little friction into its operative position in the container (1).

Description

Dispositif de distribution d'un produit fluide contenu dans un réservoir fermé hermétiquement . Device for dispensing a fluid product contained in a hermetically sealed tank.
La présente invention concerne un dispositif de distribution de produit fluide, et plus particulièrement un dispositif de distribution d'un médicament liquide contenu dans un réservoir fermé hermétiquement. Dans le domaine des dispositifs de pulvérisation de médicaments, et particulièrement dans le cas de dispositifs à une dose (dispositifs unidose) ou les dispositifs à deux doses (dispositifs bidose) , ils se posent de nombreux problèmes. En particulier, le problème le plus critique qui est à résoudre concerne la stabilité du médicament liquide contenu dans le réservoir du dispositif.The present invention relates to a device for dispensing a fluid product, and more particularly a device for dispensing a liquid medicament contained in a hermetically closed container. In the field of devices for spraying medicaments, and particularly in the case of one-dose devices (single-dose devices) or two-dose devices (bidose devices), they pose numerous problems. In particular, the most critical problem to be resolved concerns the stability of the liquid medicament contained in the reservoir of the device.
En effet, le liquide, entre le moment où il est mis en place dans le réservoir du dispositif, et le moment où il est distribué, c'est-à-dire pendant la période de stockage, a tendance à s'évaporer, ou peut être contaminé par des agents extérieurs tels que des bactéries, ou être oxydé par de l'oxygène. Dans le cas de certains médicaments, ceci peut entraîner une perte totale de son efficacité.Indeed, the liquid, between the moment when it is placed in the reservoir of the device, and the moment when it is dispensed, that is to say during the storage period, tends to evaporate, or may be contaminated with external agents such as bacteria, or be oxidized by oxygen. In the case of certain drugs, this can lead to a total loss of its effectiveness.
Pour résoudre ce problème, deux types de systèmes ont principalement été utilisés :To solve this problem, two types of systems were mainly used:
Un premier type de dispositif comprend un réservoir dont l'ouverture est obturée par une membrane, ladite membrane étant percée ou déchirée par un dispositif approprié au moment de 1 ' actionnement du dispositif. De tels systèmes sont notamment décrits dans les documents EP-0 407 276 et US-4 017 007. L'inconvénient de ces dispositifs à membrane réside dans le fait que la membrane doit être appliquée sur l'ouverture du récipient avec soin, ce qui nécessite une étape de montage relativement complexe après que le réservoir ait été rempli. Ainsi, le produit liquide contenu dans le réservoir est exposé à une contamination possible pendant le temps requis pour appliquer ladite membrane . Dans un second type de système, un élément en caoutchouc, utilisé en tant que piston de pompe est percé au moment de 1 ' actionnement du distributeur par une aiguille qui est reliée à la sortie de pulvérisation du distributeur. Un tel système est décrit dans le document FR-2 684 304. Dans ce type de système, qui résout le problème de la membrane, la dimension du piston doit être telle qu'il puisse coulisser relativement facilement dans le réservoir. En d'autre termes, l'interférence entre le piston et le réservoir, c'est-à-dire la pression exercée par le piston contre les parois du réservoir, et par conséquent la surface de contact entre ces deux éléments, doivent être aussi faibles que possible afin d'éviter des problèmes de frottement lors de 1 ' actionnement du distributeur, ainsi que pour minimiser la force nécessaire à 1 ' actionnement du distributeur. Cette caractéristique de faible interférence entraîne une protection limitée contre 1 'évaporation dans certaines conditions, telles que par exemple avec des températures de stockage élevées, et peut également autoriser une contamination du produit, par exemple par pénétration d'oxygène.A first type of device comprises a reservoir, the opening of which is closed by a membrane, said membrane being pierced or torn by a suitable device at the time of actuation of the device. Such systems are described in particular in documents EP-0 407 276 and US-4 017 007. The disadvantage of these membrane devices lies in the fact that the membrane must be applied to the opening of the container with care, which requires a relatively assembly step complex after the tank has been filled. Thus, the liquid product contained in the reservoir is exposed to possible contamination for the time required to apply said membrane. In a second type of system, a rubber element, used as a pump piston is pierced at the time of actuation of the dispenser by a needle which is connected to the spray outlet of the dispenser. Such a system is described in document FR-2 684 304. In this type of system, which solves the problem of the membrane, the dimension of the piston must be such that it can slide relatively easily in the reservoir. In other words, the interference between the piston and the reservoir, i.e. the pressure exerted by the piston against the walls of the reservoir, and therefore the contact surface between these two elements, must also be as low as possible to avoid friction problems when actuating the dispenser, as well as to minimize the force required to actuate the dispenser. This characteristic of low interference results in limited protection against evaporation under certain conditions, such as for example with high storage temperatures, and can also allow contamination of the product, for example by penetration of oxygen.
La présente invention a pour but de fournir un dispositif de distribution d'un produit fluide qui ne reproduit pas les inconvénients précités.The object of the present invention is to provide a device for dispensing a fluid product which does not have the abovementioned drawbacks.
Ainsi, la présente invention a pour but de fournir un dispositif de distribution de produit fluide qui assure simultanément une fermeture efficace et hermétique du réservoir de produit et qui comporte un piston qui peut facilement coulisser dans ledit réservoir pour assurer un actionnement sûr, fiable et aisé du distributeur. La présente invention a donc pour objet un dispositif de distribution d'un produit fluide contenu dans un réservoir pourvu d'une ouverture, ledit dispositif comportant un élément mobile entre une position de repos, où il obture l'ouverture dudit réservoir, et une position d'actionnement, des moyens pour relier l'intérieur du réservoir à un canal d'expulsion du produit, et un organe d'actionnement pour déplacer ledit élément vers sa position d'actionnement, ledit élément coulissant de manière étanche dans ledit réservoir de sorte que le produit est expulsé à travers ledit canal d'expulsion, caractérisé en ce que ledit élément comporte des moyens d'étanchéité qui, dans la position de repos du élément, coopèrent avec celui-ci pour augmenter l'interférence entre l'élément et le réservoir garantissant ainsi une fermeture totalement hermétique du réservoir, ledit organe d'actionnement comportant des moyens pour déplacer lesdits moyens d'étanchéité et ainsi diminuer l'interférence entre l'élément et le réservoir, de sorte que l'élément se déplace dans le réservoir vers sa position d'actionnement avec un faible frottement.Thus, the present invention aims to provide a fluid dispensing device which simultaneously ensures an effective and hermetic closure of the product reservoir and which comprises a piston which can easily slide in said reservoir to ensure safe, reliable and easy actuation. from the distributor. The present invention therefore relates to a device for dispensing a fluid product contained in a reservoir provided with an opening, said device comprising a movable element between a rest position, where it closes the opening of said reservoir, and a position actuator, means for connecting the interior of the reservoir to a product expulsion channel, and an actuator for moving said element towards its actuation position, said element sliding in leaktight manner in said reservoir so that the product is expelled through said expulsion channel, characterized in that said element comprises sealing means which, in the element's rest position, cooperate with it to increase the interference between the element and the reservoir thus guaranteeing a completely hermetic closure of the reservoir, said actuating member comprising means for moving said sealing means and ai nsi decrease the interference between the element and the reservoir, so that the element moves in the reservoir towards its actuation position with low friction.
Ainsi, l'élément agit, dans sa position de repos, en tant que bouchon qui obture hermétiquement le réservoir, et, lorsqu'il se déplace vers sa position d'actionnement, agit en tant que piston pour expulser le produit contenu dans le réservoir.Thus, the element acts, in its rest position, as a cap which hermetically seals the reservoir, and, when it moves towards its actuation position, acts as a piston to expel the product contained in the reservoir .
Avantageusement, l'organe d'actionnement comporte des moyens pour solidariser l'élément et l'organe d'actionnement après déplacement des moyens d'étanchéité par lesdits moyens pour déplacer.Advantageously, the actuating member comprises means for securing the element and the actuating member after displacement of the sealing means by said means for displacing.
De préférence, ledit élément est sensiblement cylindrique et comporte un passage sensiblement cylindrique reliant l'intérieur du réservoir, sensiblement cylindrique, audit canal d'expulsion, lesdits moyens d'étanchéité comportant un organe d'obturation qui obture ledit passage de manière étanche dans la position de repos de l'élément, lesdits moyens pour déplacer ledit organe d'obturation étant adaptés à ouvrir ledit passage.Preferably, said element is substantially cylindrical and has a substantially cylindrical passage connecting the interior of the reservoir, substantially cylindrical, to said expulsion channel, said sealing means comprising a closure member which seals said passage sealingly in the rest position of the element, said means for moving said closure member being adapted to open said passage.
De préférence, ledit organe d'obturation a un diamètre supérieur à celui du passage de sorte que, dans la position de repos du bouchon, il comprime la surface latérale extérieure de l'élément contre les parois intérieures du réservoir, augmentant ainsi l'interférence entre l'élément et le réservoir dans ladite position de repos .Preferably, said closure member has a diameter greater than that of the passage so that, in the stopper position, it compresses the external lateral surface of the element against the internal walls of the reservoir, thus increasing the interference between the element and the tank in said rest position.
Avantageusement, ledit organe d'obturation est une bille qui est emmanchée à force dans le passage de l'élément après le remplissage du réservoir.Advantageously, said closure member is a ball which is force-fitted into the passage of the element after filling the reservoir.
Avantageusement, ledit organe d'actionnement comporte une tige traversée par le canal d'expulsion, ladite tige pouvant coulisser de manière étanche dans le passage pour déplacer ledit organe d'obturation.Advantageously, said actuating member comprises a rod traversed by the expulsion channel, said rod being able to slide in leaktight manner in the passage to move said obturation member.
Avantageusement, l'extrémité de ladite tige déplace ledit organe d'obturation hors du passage dans le réservoir, qui comporte un évidement pour recevoir ledit organe d'obturation.Advantageously, the end of said rod moves said closure member out of the passage in the tank, which has a recess for receiving said closure member.
De préférence, ledit élément comporte en outre des moyens de blocage qui empêchent le déplacement de l'élément lorsqu'il est dans sa position de repos, ledit organe d'actionnement comportant en outre des moyens pour déplacer lesdits moyens de blocage.Preferably, said element further comprises blocking means which prevent movement of the element when it is in its rest position, said actuating member further comprising means for moving said blocking means.
Avantageusement, lesdits moyens de blocage comportent une bride annulaire qui, dans le position de repos de l'élément, coopère avec l'ouverture du réservoir pour empêcher le déplacement de l'élément dans le réservoir.Advantageously, said blocking means comprise an annular flange which, in the element's rest position, cooperates with the opening of the reservoir to prevent movement of the element in the reservoir.
Selon un mode de réalisation avantageux de l'invention, l'organe d'actionnement comporte, en prolongement de la tige, un épaulement dont le diamètre extérieur est inférieur au diamètre intérieur du réservoir, et, en prolongement dudit épaulement, une rainure, de sorte que lors de 1 ' actionnement de l'organe d'actionnement, la tige coulisse dans le passage de l'élément pour déplacer d'abord l'organe d'obturation, puis 1 'épaulement coopère avec la surface radiale extérieure de l'élément en exerçant une force qui sollicite ledit élément vers sa position d'actionnement, ladite force étant supérieure à l'élasticité de la bride annulaire, de sorte que celle-ci se replie autour dudit épaulement, dans ladite rainure, pour permettre le déplacement de l'élément dans ledit réservoir.According to an advantageous embodiment of the invention, the actuating member comprises, in extension of the rod, a shoulder whose outside diameter is less than the inside diameter of the reservoir, and, in extension of said shoulder, a groove, so that upon actuation of the actuating member, the rod slides in the passage of the element to move the shutter member first, then the shoulder cooperates with the outer radial surface of the element by exerting a force which urges said element towards its actuating position, said force being greater than the elasticity of the annular flange, so that the latter folds around said shoulder, in said groove, to allow the movement of the element in said tank.
De préférence, la longueur formée par l'addition du rayon de l' épaulement et de l'épaisseur de la bride annulaire est environ égale au rayon intérieur du réservoir, de sorte que l'élément peut coulisser avec étanchéité et avec un faible frottement dans le réservoir.Preferably, the length formed by the addition of the radius of the shoulder and the thickness of the annular flange is approximately equal to the interior radius of the tank, so that the element can slide with sealing and with low friction in The reservoir.
Avantageusement, ledit élément est réalisé en un matériau élastomère.Advantageously, said element is made of an elastomeric material.
D'autres caractéristiques et avantages de la présente invention apparaîtront au cours de la description suivante d'un mode de réalisation avantageux de l'invention, donné à titre d'exemple non limitatif, en regard des dessins joints; sur lesquels : la figure 1 représente une vue schématique en coupe partielle du dispositif de distribution selon un mode de réalisation avantageux de l'invention, avantOther characteristics and advantages of the present invention will appear during the following description of an advantageous embodiment of the invention, given by way of nonlimiting example, with reference to the accompanying drawings; in which: FIG. 1 represents a schematic view in partial section of the dispensing device according to an advantageous embodiment of the invention, before
1 ' actionnement du dispositif, et - la figure 2 représente une vue similaire à celle de la figure 1, pendant 1 ' actionnement du dispositif.1 actuation of the device, and - Figure 2 shows a view similar to that of Figure 1, during 1 actuation of the device.
En référence aux figures, le dispositif selon l'invention comporte un réservoir 1, de préférence sensiblement cylindrique, comportant une ouverture. Un élément 2 de préférence sensiblement cylindrique est disposé dans ledit réservoir 1 et est mobile entre une position de repos, représentée sur la figure 1, où il obture l'ouverture dudit réservoir 1, et une position d'actionnement représentée sur la figure 2. Cet élément 2, dans sa position de repos, obture le réservoir de manière totalement hermétique et empêche par conséquent toute contamination ou toute évaporation du produit contenu dans le réservoir 1. Dans cette position, l'élément 2 agit donc en tant que bouchon. Le dispositif comporte en outre un organe d'actionnement adapté à déplacer ledit élément 2 vers sa position d'actionnement, ledit élément 2 coulissant de manière étanche dans ledit réservoir 1 pendant ce déplacement et agissant donc dans cette situation en tant que piston du distributeur. Le dispositif de distribution comporte en outre des moyens pour relier l'intérieur du réservoir à un canal d'expulsion de produit 10 qui est relié à la sortie du distributeur (non représenté) .With reference to the figures, the device according to the invention comprises a reservoir 1, preferably substantially cylindrical, comprising an opening. An element 2, preferably substantially cylindrical, is disposed in said reservoir 1 and is movable between a rest position, shown in FIG. 1, where it closes the opening of said reservoir 1, and an actuating position shown in FIG. 2. This element 2, in its rest position, closes the reservoir in a completely hermetic manner and consequently prevents any contamination or any evaporation of the product contained in the reservoir 1. In this position, the element 2 therefore acts as a plug. The device further comprises an actuating member adapted to move said element 2 towards its actuating position, said element 2 sliding in leaktight manner in said reservoir 1 during this displacement and therefore acting in this situation as a piston of the dispenser. The dispensing device further comprises means for connecting the interior of the reservoir to a product expulsion channel 10 which is connected to the outlet of the dispenser (not shown).
Il est à noter que le dispositif de distribution, objet de la présente invention, s'adapte à tout type de distributeur de produit dans lequel un produit contenu dans un réservoir obturé hermétiquement doit être distribué, par exemple pulvérisé.It should be noted that the dispensing device, object of the present invention, adapts to any type of product dispenser in which a product contained in a hermetically sealed reservoir must be dispensed, for example sprayed.
La description suivante d'un mode de réalisation préféré de l'invention sera donc faite de manière très schématique, et il est clair que les divers éléments décrits peuvent prendre toutes formes appropriées pour s'adapter à tout type de distributeur de produit.The following description of a preferred embodiment of the invention will therefore be made very schematically, and it is clear that the various elements described can take any suitable form to adapt to any type of product dispenser.
En référence à la figure 1, l'élément 2 est dans sa position de repos dans laquelle il agit en tant que bouchon. Il est réalisé dans un matériau élastomère approprié, par exemple du caoutchouc, et comporte un passage 3 qui le traverse axialement, de préférence en son centre . Le passage 3 est de préférence sensiblement cylindrique. Immédiatement après le remplissage du réservoir 1 avec le produit, un organe d'obturation 5 est disposé dans le passage 3 pour obturer le réservoir de manière étanche et totalement hermétique. De préférence, cet organe d'obturation 5 est sphérique et peut être réalisé par exemple sous la forme d'une bille en matériau approprié tel que l'acier inoxydable. Cette bille 5 comporte un diamètre supérieur au diamètre intérieur du passage 3 de sorte que lorsqu'elle est disposée dans ledit passage 3, elle obture d'une part ce passage et d'autre part elle exerce des forces de compression élevées sur les parois latérales en caoutchouc de l'élément 2, contre le réservoir 1. Ainsi, il est créé une interférence élevée entre l'élément 2 et les parois du réservoir 1 ce qui garantie une fermeture efficace, étanche et totalement hermétique du réservoir dans la position de repos, avant 1 'actionnement . Le dispositif comporte en outre un organe d'actionnement 6 qui comporte une tige 7 s'étendant axialement. Avantageusement, l'organe d'actionnement 6 comporte en prolongement de ladite tige 7 un épaulement 8, et en prolongement dudit épaulement 8, un évidement 9, par exemple une rainure. Cet organe d'actionnement est traversé par un canal d'expulsion de produit 10, de préférence axial, qui est relié d'une part à la sortie de distribution du distributeur et qui débouche d'autre part à l'extrémité de ladite tige 7. De préférence, ladite tige 7 a un diamètre très légèrement supérieur au diamètre intérieur du passage 3 de l'élément 2.Referring to Figure 1, the element 2 is in its rest position in which it acts as a plug. It is made of a suitable elastomeric material, for example rubber, and has a passage 3 which passes through it axially, preferably at its center. The passage 3 is preferably substantially cylindrical. Immediately after filling the reservoir 1 with the product, a closure member 5 is disposed in the passage 3 to close the reservoir of waterproof and totally airtight. Preferably, this shutter member 5 is spherical and can be produced for example in the form of a ball made of a suitable material such as stainless steel. This ball 5 has a diameter greater than the internal diameter of the passage 3 so that when it is disposed in said passage 3, it closes on the one hand this passage and on the other hand it exerts high compressive forces on the side walls rubber element 2, against the tank 1. Thus, a high interference is created between the element 2 and the walls of the tank 1 which guarantees an effective, tight and completely hermetic closure of the tank in the rest position , before actuation. The device further comprises an actuating member 6 which comprises a rod 7 extending axially. Advantageously, the actuating member 6 comprises an extension of said rod 7 a shoulder 8, and an extension of said shoulder 8, a recess 9, for example a groove. This actuating member is traversed by a product expulsion channel 10, preferably axial, which is connected on the one hand to the dispensing outlet of the distributor and which opens on the other hand to the end of said rod 7 Preferably, said rod 7 has a diameter very slightly greater than the inside diameter of passage 3 of element 2.
L'organe d'actionnement 6 est relié à un dispositif d'actionnement tel qu'un poussoir (non représenté) du distributeur . L'élément 2 comporte en outre des moyens de blocage 4, de préférence réalisés sous la forme d'une bride annulaire 4 qui, dans sa position de repos de l'élément 2, coopère avec le réservoir 1 pour empêcher le déplacement de l'élément 2 dans le réservoir. En particulier, ladite bride annulaire 4 est réalisée d'une pièce avec l'élément 2 et s'appuie dans la position de repos de l'élément 2, sur l'extrémité supérieure des parois du réservoir 1.The actuating member 6 is connected to an actuating device such as a pusher (not shown) of the dispenser. The element 2 further comprises locking means 4, preferably made in the form of an annular flange 4 which, in its position of rest of the element 2, cooperates with the reservoir 1 to prevent the displacement of the item 2 in the tank. In particular, said annular flange 4 is made in one piece with the element 2 and is supported in the rest position of the element 2, on the upper end of the walls of the tank 1.
Le fonctionnement du dispositif est le suivant.The operation of the device is as follows.
Immédiatement après le remplissage du réservoir 1 avec le produit, la bille 5 est emmanchée à force dans la passage 3 de l'élément 2, ledit élément 2 restant pendant cette opération dans sa position de repos à l'extrémité supérieure du réservoir 1 en raison de la bride annulaireImmediately after filling the reservoir 1 with the product, the ball 5 is force-fitted into the passage 3 of the element 2, said element 2 remaining during this operation in its rest position at the upper end of the reservoir 1 due of the annular flange
4 qui empêche le déplacement de l'élément 2 dans le réservoir 1.4 which prevents the displacement of the element 2 in the tank 1.
Lors de 1 ' actionnement du dispositif, l'organe d'actionnement 6 est déplacé par rapport au réservoir 1, de sorte que l'extrémité de la tige 7 vient pousser la bille 5 hors du passage 3 de l'élément 2. Ainsi, lorsque la bille 5 est expulsée du passage 3, elle n'exerce plus de force de compression sur les parois latérales de l'élément 2 contre les parois du réservoir 1 et l'interférence entre ces deux éléments est fortement diminuée. Le diamètre extérieur de la tige 7 est telle que ladite tige 7 coulisse de manière étanche dans ledit passage 3 et la longueur de ladite tige 7 est telle que 1 'épaulement 8, disposé en prolongement de la tige 7, vient s'appuyer sur la surface radiale extérieure de l'élément 2 jusqu'à après l'expulsion de ladite bille 5 du passage 3. La force exercée par l' épaulement 8 sur ladite surface radiale extérieure de l'élément 2 sollicite ledit élément 2 vers sa position d'actionnement ce qui entraîne la bride annulaire 4 à se replier autour dudit épaulement 8 et, le cas échéant, à pénétrer dans ladite rainure 9 formée au-dessus dudit épaulement 8. Ainsi, pour réaliser ce déplacement de la bride annulaire 4, il suffit que la force exercée par l'organe d'actionnement 6 sur l'élément 2 soit légèrement supérieure à l'élasticité de ladite bride annulaire 4, puisque l'interférence entre l'élément 2 et les parois du réservoir 1 est fortement diminuée en raison de l'absence de la bille 5 dans le passage 3. Ainsi, lors de l'actionnement du dispositif, on crée une accumulation d'énergie dans le bras (correspondant à la résistance de la bride annulaire) . Ceci a pour conséquence avantageuse que la pulvérisation sera améliorée, cette énergie accumulée se libérant d'un seul coup lors de la pulvérisation. Dans le cas où l'organe d'actionnement 6 comporte une rainure 9, l'interaction entre la bride 4 et la rainure 9 a pour effet de solidariser l'élément 2 et l'organe d'actionnement 6, de sorte qu'ils forment un ensemble unitaire se déplaçant ensemble dans le réservoir 1.When the device is actuated, the actuating member 6 is moved relative to the reservoir 1, so that the end of the rod 7 pushes the ball 5 out of the passage 3 of the element 2. Thus, when the ball 5 is expelled from the passage 3, it no longer exerts a compressive force on the side walls of the element 2 against the walls of the tank 1 and the interference between these two elements is greatly reduced. The outside diameter of the rod 7 is such that the said rod 7 slides in leaktight manner in the said passage 3 and the length of the said rod 7 is such that the shoulder 8, arranged as an extension of the rod 7, comes to rest on the external radial surface of element 2 until after expulsion of said ball 5 from passage 3. The force exerted by the shoulder 8 on said external radial surface of element 2 biases said element 2 towards its position of actuation which causes the annular flange 4 to fold around said shoulder 8 and, if necessary, to penetrate into said groove 9 formed above said shoulder 8. Thus, to achieve this displacement of the annular flange 4, it suffices that the force exerted by the actuating member 6 on the element 2 is slightly greater than the elasticity of said annular flange 4, since the interference between the element 2 and the walls of the reservoir 1 is greatly reduced in due to the absence of the ball 5 in the passage 3. Thus, upon actuation of the device, an accumulation of energy is created in the arm (corresponding to the resistance of the annular flange). This has the advantageous consequence that the spraying will be improved, this accumulated energy being released all at once during the spraying. In the case where the actuating member 6 has a groove 9, the interaction between the flange 4 and the groove 9 has the effect of securing the element 2 and the actuating member 6, so that they form a unitary unit moving together in the tank 1.
Le diamètre de 1 'épaulement 8 est nécessairement inférieur au diamètre intérieur du réservoir 1, pour permettre l 'actionnement du dispositif de distribution. De préférence, la dimension dudit épaulement 8 est telle que la longueur formée par l'addition du rayon de l'épaulement 8 et de l'épaisseur de la bride annulaire 4 est environ égale au rayon intérieur du réservoir 1, de sorte qu'après que la bride annulaire 4 se soit repliée autour de l'épaulement 8, le diamètre extérieur de l'ensemble, au niveau dudit épaulement 8, soit environ égal au diamètre intérieur du réservoir 1. Ainsi, l'interférence entre l'élément 2 et le réservoir 1 n'est pratiquement pas augmentée par la présence de la bride annulaire 4.The diameter of the shoulder 8 is necessarily less than the inside diameter of the reservoir 1, to allow actuation of the dispensing device. Preferably, the dimension of said shoulder 8 is such that the length formed by the addition of the radius of the shoulder 8 and the thickness of the annular flange 4 is approximately equal to the interior radius of the tank 1, so that after that the annular flange 4 is folded around the shoulder 8, the outside diameter of the assembly, at the level of said shoulder 8, is approximately equal to the inside diameter of the reservoir 1. Thus, the interference between the element 2 and the tank 1 is practically not increased by the presence of the annular flange 4.
La position repliée finale de la bride annulaire 5 permet donc la pénétration de celle-ci dans le réservoir sans causer de frottement significatif et garantit une efficacité parfaite entre l'élément 2 et l'organe d'actionnement 6.The final folded position of the annular flange 5 therefore allows its penetration into the reservoir without causing significant friction and guarantees perfect efficiency between the element 2 and the actuating member 6.
A ce moment, l'élément 2 adopte sa fonction de piston et peut coulisser de manière étanche dans le réservoir 1 avec un frottement très faible, ce qui permet d'assurer un actionnement sûr, fiable et aisé du dispositif de distribution. 97/29028 PC17EP97/00416At this time, the element 2 adopts its piston function and can slide in leaktight manner in the reservoir 1 with very low friction, which makes it possible to ensure safe, reliable and easy actuation of the dispensing device. 97/29028 PC17EP97 / 00416
1010
Comme représenté sur les figures 1 et 2, le réservoir 1 peut comporter dans son fond un évidement la destiné à recevoir l'organe d'obturation 5 après que celui-ci ait été expulsé hors du passage 3 par la tige 7 de l'organe d'actionnement 6. Lorsque l'organe d'obturation 5 est une bille, cet évidement la est avantageusement de forme sensiblement sphérique.As shown in FIGS. 1 and 2, the reservoir 1 may include in its bottom a recess 1a intended to receive the closure member 5 after the latter has been expelled from the passage 3 by the rod 7 of the member actuation 6. When the closure member 5 is a ball, this recess is advantageously of substantially spherical shape.
L'invention permet donc de garantir l'étanchéité du produit dès sa mise en place dans le réservoir et jusqu'à sa distribution, pendant toute la durée du stockage qu'elles qu'en soient les conditions, et pendant tout le processus de distribution.The invention therefore makes it possible to guarantee the tightness of the product from its installation in the tank and until its distribution, throughout the duration of the storage, whatever the conditions, and during the entire distribution process. .
Bien que la description détaillée ci-dessus a été faite en référence à un dispositif monodose, la présente invention s'applique également à des dispositifs multidoses . Although the detailed description above has been made with reference to a single-dose device, the present invention also applies to multi-dose devices.

Claims

Revendications claims
1.- Dispositif de distribution d'un produit fluide contenu dans un réservoir (1) pourvu d'une ouverture, ledit dispositif comportant un élément (2) mobile entre une position de repos, où il obture l'ouverture dudit réservoir (1), et une position d'actionnement, des moyens pour relier l'intérieur du réservoir (1) à un canal d'expulsion du produit (10), et un organe d'actionnement (6) pour déplacer ledit élément (2) vers sa position d'actionnement, ledit élément (2) coulissant de manière étanche dans ledit réservoir (1) de sorte que le produit est expulsé à travers ledit canal d'expulsion (10) , caractérisé en ce que ledit élément (2) comporte des moyens d'étanchéité (5) qui, dans la position de repos du élément (2) , coopèrent avec celui-ci pour augmenter l'interférence entre l'élément (2) et le réservoir (1) garantissant ainsi une fermeture totalement hermétique du réservoir (1), ledit organe d'actionnement (6) comportant des moyens (7) pour déplacer lesdits moyens d'étanchéité (5) et ainsi diminuer l'interférence entre l'élément (2) et le réservoir (1), de sorte que l'élément (2) se déplace dans le réservoir (1) vers sa position d'actionnement avec un faible frottement .1.- Device for dispensing a fluid product contained in a reservoir (1) provided with an opening, said device comprising an element (2) movable between a rest position, where it closes the opening of said reservoir (1) , and an actuating position, means for connecting the interior of the reservoir (1) to a product expulsion channel (10), and an actuating member (6) for moving said element (2) towards its operating position, said element (2) sliding in leaktight manner in said reservoir (1) so that the product is expelled through said expulsion channel (10), characterized in that said element (2) comprises means seal (5) which, in the rest position of the element (2), cooperate with the latter to increase the interference between the element (2) and the reservoir (1) thus guaranteeing a completely hermetic closure of the reservoir (1), said actuating member (6) comprising means (7) for moving said sealing means (5) and thus reduce the interference between the element (2) and the reservoir (1), so that the element (2) moves in the reservoir (1) to its position of actuation with low friction.
2.- Dispositif selon la revendication 1, dans lequel l'organe d'actionnement comporte des moyens (8, 9) pour solidariser l'élément (2) et l'organe d'actionnement (6) après déplacement des moyens d'étanchéité (5) par lesdits moyens pour déplacer (7) .2.- Device according to claim 1, wherein the actuating member comprises means (8, 9) for securing the element (2) and the actuating member (6) after displacement of the sealing means (5) by said means for moving (7).
3.- Dispositif selon la revendication 1 ou 2, dans lequel ledit élément (2) est sensiblement cylindrique et comporte un passage (3) sensiblement cylindrique reliant l'intérieur du réservoir (1), sensiblement cylindrique, audit canal d'expulsion (10), lesdits moyens d'étanchéité (5) comportant un organe d'obturation (5) qui obture ledit passage (3) de manière étanche dans la position de repos de l'élément (2) , lesdits moyens (7) pour déplacer ledit organe d'obturation (5) étant adaptés à ouvrir ledit passage (3) . 3.- Device according to claim 1 or 2, wherein said element (2) is substantially cylindrical and comprises a passage (3) substantially cylindrical connecting the interior of the tank (1), substantially cylindrical, to said expulsion channel (10 ), said sealing means (5) comprising a shutter member (5) which seals said passage (3) sealingly in the rest position of the element (2), said means (7) for moving said closure member (5) being adapted to open said passage (3).
4.- Dispositif selon la revendication 3, dans lequel ledit organe d'obturation (5) a un diamètre supérieur à celui du passage (3) de sorte que, dans la position de repos du bouchon, il comprime la surface latérale extérieure de l'élément (2) contre les parois intérieures du réservoir, augmentant ainsi l'interférence entre l'élément (2) et le réservoir (1) dans ladite position de repos .4.- Device according to claim 3, wherein said shutter member (5) has a diameter greater than that of the passage (3) so that, in the rest position of the plug, it compresses the outer lateral surface of the element (2) against the interior walls of the tank, thereby increasing the interference between the element (2) and the tank (1) in said rest position.
5.- Dispositif selon la revendication 3 ou 4, dans lequel ledit organe d'obturation (5) est une bille (5) qui est emmanchée à force dans le passage (3) de l'élément (2) après le remplissage du réservoir (1) .5.- Device according to claim 3 or 4, wherein said sealing member (5) is a ball (5) which is force fitted into the passage (3) of the element (2) after filling the tank (1).
6.- Dispositif selon l'une quelconque des revendications 3 à 5, dans lequel ledit organe d'actionnement (6) comporte une tige (7) traversée par le canal d'expulsion (10) , ladite tige (7) pouvant coulisser de manière étanche dans le passage (3) pour déplacer ledit organe d'obturation (5) .6.- Device according to any one of claims 3 to 5, wherein said actuator (6) comprises a rod (7) through which the expulsion channel (10), said rod (7) being able to slide from sealingly in the passage (3) to move said closure member (5).
7.- Dispositif selon la revendication 6, dans lequel l'extrémité de ladite tige (7) déplace ledit organe d'obturation (5) hors du passage (3) dans le réservoir (1) , qui comporte un évidement (la) pour recevoir ledit organe d'obturation (5) .7.- Device according to claim 6, wherein the end of said rod (7) moves said shutter member (5) out of the passage (3) in the reservoir (1), which has a recess (la) for receiving said closure member (5).
8.- Dispositif selon la revendication 6 ou 7, dans lequel ledit élément (2) comporte en outre des moyens de blocage (4) qui empêchent le déplacement de l'élément (2) lorsqu'il est dans sa position de repos, ledit organe d'actionnement (6) comportant en outre des moyens (8, 9) pour déplacer lesdits moyens de blocage (4) .8.- Device according to claim 6 or 7, wherein said element (2) further comprises locking means (4) which prevent movement of the element (2) when it is in its rest position, said actuator (6) further comprising means (8, 9) for moving said blocking means (4).
9. -Dispositif selon la revendication 8, dans lequel lesdits moyens de blocage (4) comportent une bride annulaire (4) qui, dans le position de repos de l'élément (2) , coopère avec l'ouverture du réservoir (1) pour empêcher le déplacement de l'élément dans le réservoir.9. -Device according to claim 8, wherein said locking means (4) comprise a flange annular (4) which, in the rest position of the element (2), cooperates with the opening of the reservoir (1) to prevent movement of the element in the reservoir.
10.- Dispositif selon la revendication 9, dans lequel l'organe d'actionnement (6) comporte, en prolongement de la tige (7), un épaulement (8) dont le diamètre extérieur est inférieur au diamètre intérieur du réservoir (1), et, en prolongement dudit épaulement (8), une rainure (9), de sorte que lors de 1 ' act ionnement de l'organe d'actionnement (6), la tige (7) coulisse dans le passage10.- Device according to claim 9, wherein the actuating member (6) comprises, in extension of the rod (7), a shoulder (8) whose outer diameter is less than the inner diameter of the reservoir (1) , and, in extension of said shoulder (8), a groove (9), so that during actuation of the actuating member (6), the rod (7) slides in the passage
(3) de l'élément (2) pour déplacer d'abord l'organe d'obturation (5), puis l'epaulement (8) coopère avec la surface radiale extérieure de l'élément (2) en exerçant une force qui sollicite ledit élément vers sa position d'actionnement, ladite force étant supérieure à l'élasticité de la bride annulaire (4), de sorte que celle-ci se replie autour dudit épaulement (8) , dans ladite rainure (9) , pour permettre le déplacement de l'élément (2) dans ledit réservoir (1) . (3) of the element (2) to first move the closure member (5), then the shoulder (8) cooperates with the external radial surface of the element (2) by exerting a force which biases said element towards its actuating position, said force being greater than the elasticity of the annular flange (4), so that the latter folds around said shoulder (8), in said groove (9), to allow the movement of the element (2) in said tank (1).
11.- Dispositif selon la revendication 10, dans lequel la longueur formée par l'addition du rayon de l'epaulement (8) et de l'épaisseur de la bride annulaire (4) est environ égale au rayon intérieur du réservoir (1) , de sorte que l'élément (2) peut coulisser avec étanchéité et avec un faible frottement dans le réservoir (1) .11.- Device according to claim 10, wherein the length formed by the addition of the radius of the shoulder (8) and the thickness of the annular flange (4) is approximately equal to the interior radius of the tank (1) , so that the element (2) can slide with tightness and with low friction in the tank (1).
12.- Dispositif selon l'une quelconque des revendications précédentes, dans lequel ledit élément (2) est réalisé en un matériau élastomère. 12.- Device according to any one of the preceding claims, wherein said element (2) is made of an elastomeric material.
EP97902272A 1996-02-08 1997-01-31 Device for dispensing a fluid material from a sealed container Expired - Lifetime EP0879191B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9601553 1996-02-08
FR9601553A FR2744702B1 (en) 1996-02-08 1996-02-08 DEVICE FOR DISPENSING A FLUID PRODUCT CONTAINED IN A HERMETICALLY CLOSED TANK
PCT/EP1997/000416 WO1997029028A1 (en) 1996-02-08 1997-01-31 Device for dispensing a fluid material from a sealed container

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EP0879191A1 true EP0879191A1 (en) 1998-11-25
EP0879191B1 EP0879191B1 (en) 1999-08-18

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EP (1) EP0879191B1 (en)
JP (1) JP2000505400A (en)
DE (1) DE69700432T2 (en)
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WO (1) WO1997029028A1 (en)

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Also Published As

Publication number Publication date
FR2744702B1 (en) 1998-03-20
DE69700432T2 (en) 2000-05-04
WO1997029028A1 (en) 1997-08-14
US6164501A (en) 2000-12-26
JP2000505400A (en) 2000-05-09
EP0879191B1 (en) 1999-08-18
DE69700432D1 (en) 1999-09-23
FR2744702A1 (en) 1997-08-14

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