EP2763913A1 - Fluid product dispensing device - Google Patents

Fluid product dispensing device

Info

Publication number
EP2763913A1
EP2763913A1 EP12787757.9A EP12787757A EP2763913A1 EP 2763913 A1 EP2763913 A1 EP 2763913A1 EP 12787757 A EP12787757 A EP 12787757A EP 2763913 A1 EP2763913 A1 EP 2763913A1
Authority
EP
European Patent Office
Prior art keywords
neck
container
stresses
seal
projecting
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
EP12787757.9A
Other languages
German (de)
French (fr)
Other versions
EP2763913B1 (en
Inventor
Guillaume DU BOISBAUDRY
Philip STEER
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.)
Aptar France SAS
Original Assignee
Aptar France SAS
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 Aptar France SAS filed Critical Aptar France SAS
Publication of EP2763913A1 publication Critical patent/EP2763913A1/en
Application granted granted Critical
Publication of EP2763913B1 publication Critical patent/EP2763913B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38—Details of the container body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/52—Valves specially adapted therefor; Regulating devices for metering
    • B65D83/54—Metering valves ; Metering valve assemblies

Definitions

  • the present invention relates to a fluid dispenser device comprising a fastener member of a dispensing member on the neck of a container. More particularly, the present invention relates to a fixing cap for attaching a metering valve to the neck of a container with the interposition of a neck seal for sealing at the neck of the container.
  • a typical fastener generally includes a receiving portion for fixedly receiving the dispensing member, a fastening portion for attachment to the neck of said container, and an "intermediate" portion which, after placement of the fastener ensures the compression of the neck seal on the upper edge of the neck of the container to ensure sealing.
  • These typical fasteners which may be screw or snap rings, or crimpable caps, have a number of disadvantages. Particularly in the case of distributors containing propellants, the upper edge of the container generally defines a sharp edge.
  • the present invention aims to provide a fastener that does not reproduce the aforementioned drawbacks.
  • the present invention is intended to provide a fastener element that is simple and inexpensive to manufacture and assemble.
  • the present invention also aims to provide such a fastener which limits the risk of malfunction of the neck seal during assembly.
  • the present invention also aims to provide such a fastener which allows relatively high manufacturing tolerances.
  • the present invention also aims to provide a fluid dispenser device that can be made and assembled at low cost, while ensuring a perfect seal.
  • the present invention therefore relates to a fluid dispensing device, comprising a dispensing member, such as a pump or a valve, mounted on the neck of a container containing a product to be dispensed, with the interposition of a seal collar for sealing at said neck of the container, said dispensing member being mounted on said neck by means of a fastener, having a fixing portion for attaching to said container neck and a compression portion for compressing said neck seal on said neck of the container, said compression portion having at least one projecting profile adapted to exert stresses in said neck joint after assembly, wherein, after assembly, said container neck generates first stresses in said collar seal and said at least one protruding profile of the fastener element generates second stresses in said neck seal, said first contrai said neck of the container having a curved upper edge, said neck defining at its end an edge in contact with said neck joint, said at least one projecting profile being arranged radially outwardly; or within said edge when the fastener is assembled on the neck of the container, said
  • said at least one projecting profile is a continuous projecting bead around said fixing element.
  • the fastening element may comprise a plurality of projecting profiles distributed around said fastener element.
  • said at least one projecting profile is produced by deformation of material, in particular by stamping, or by addition of material, in particular by welding and / or gluing.
  • said fixing portion comprises means for crimping, snapping or screwing.
  • said fixing element comprises a receiving part for receiving said dispensing member.
  • said at least one projecting profile increases the contact surface between the neck seal and the neck of the receptacle and / or increases the contact pressure between the neck seal and the neck of the receptacle and / or increases the contact pressure between the neck seal and the fastener.
  • the dispensing member is a metering valve and the fixing element is a crimping capsule, preferably metal, which is attached to the neck by crimping.
  • FIG. 1 is a diagrammatic sectional view of a fluid product dispensing device with a fixing element produced according to the prior art
  • FIG. 2 is a diagrammatic sectional view showing in detail the stresses exerted by the neck of the receptacle on the neck seal after assembly of the fastening element according to the prior art
  • FIG. 3 is a view similar to that of FIG. 2, with a fastening element made according to an advantageous embodiment of the present invention
  • FIG. 4 is a schematic sectional view of a fastener according to an advantageous embodiment of the present invention.
  • a fixing element made in the form of a capsule for fixing a metering valve on a container neck containing a product and a propellant gas, in particular an HFA gas, but It is understood that the present invention applies to all types of fastening elements (ring or capsule) of any dispensing member (pump, metering valve or non-metering valve) on a container neck containing any fluid product ( liquid, powdery or pasty) with or without propellant.
  • the dispensing device comprises a dispensing member, such as a metering valve 20, which is assembled on the neck 31 of a receptacle 30, by means of a fastening element 10, in particular a crimpable capsule.
  • the metering valve 20 may be arbitrary and will therefore not be described in more detail below.
  • This metering valve may include in particular a valve body in which slides a valve.
  • This valve body is advantageously fixed in a receiving part 1 1 of the fastening element 10 which can be provided for receiving and fixedly hold the valve body, in particular by snapping or crimping.
  • the fastening element 10 also comprises a fastening portion 12 for attaching to said neck 31 of the container 30, said fastening portion 12 may comprise crimping, latching or screwing means or any other known means. In the example shown in Figure 1, it is crimping means.
  • the fastening element 10 further comprises a compression part, preferably formed by a radial wall 13 connecting the receiving part 1 1 to the fixing part 12, and which is intended after assembly to compress the neck seal 1 on the neck 31 of the container to seal at this location.
  • Figures 1 and 2 show a conventional container neck 30 for devices containing a propellant gas, with the curved upper edge defining at its end an edge 32 in contact with said neck seal.
  • This edge 32 which can be sharp, generates first high stresses in the neck joint during and after assembly, which can cause a risk of cutting the neck seal 1.
  • the opposite edge of the seal of the neck seal 1 is in contact with a radial wall 13 of the fixing element 10, which generates only small stresses on the seal, thus generating a risk of leakage.
  • this seal may be cut by the edge 32 of the neck 31. If it is desired to avoid this risk of cutting the neck seal by the edge 32, it is necessary to limit the bearing force of the fastening element 10 on the neck joint, with the consequent risk of leakage at the level of the neck. the plane radial wall 13 of the capsule.
  • said compression part, in particular the radial wall 13, of the fastening element 10 comprises at least one projecting profile 17 adapted to exert second stresses in said neck seal 1 after assembly of the fastener element.
  • said at least one projecting profile 17 projects axially out of said radial wall 13, towards said neck seal 1.
  • said at least one projecting profile may be formed by a continuous projecting bead all around said radial wall 13 of said fastening element 10.
  • a plurality of projecting profiles distributed around said fastener element is also conceivable.
  • said neck 31 of the container 30 After assembly of the fastening element 10, said neck 31 of the container 30 generates first stresses in said neck joint 1 and said at least one projecting profile 17 of the fastening element 10 generates seconds constraints in said neck joint 1, said first stresses being approximately axially opposite to said second stresses.
  • Dispensing devices typically comprise a container whose neck 31 has a curved upper edge, generally defining at its end an edge 32 in contact with said neck seal, as shown in FIGS. 3.
  • this configuration presents a risk of cutting the neck seal during assembly. With the present invention, this risk is greatly reduced or even eliminated.
  • Said at least one projecting profile 17 is disposed radially outside the upper edge of the neck 31, in particular of said edge 32, when the fastening element 10 is assembled, said first and second stresses then being approximately axially opposite but radially shifted, so that said first and second stresses equilibrate at least partially, decreasing strongly see eliminating the risk of cutting the seal.
  • This balancing is schematically represented in FIG. 3.
  • said at least one projecting profile 17 advantageously increases the contact area between the neck seal 1 and the neck 31 of the container 30, by pushing said neck seal 1 against said neck 31.
  • the presence of said at least one projecting profile 17 also increases the contact pressure between the neck seal 1 and the neck 31 of the container 30 on the one hand and between the neck seal 1 and the fastening element 10 on the other hand , substantially improving the tightness of the assembly.
  • the present invention also provides much better manufacturing and assembly tolerances, making the assembly step of the fastener 10 much less difficult to control from an industrial point of view.
  • the salient profile (s) 17 could also be arranged radially inside the edge 32 of the neck 31.
  • the manufacture of the fastener 10 as shown in Figures 3 and 4 is particularly simple.
  • a metal capsule it can first be carried out in a conventional manner with a plane radial wall 13, and then this radial wall can be deformed, for example by deformation of material such as stamping. to form the protruding profile or profiles 17.
  • this radial wall 13 can be deformed, for example by deformation of material such as stamping.
  • protruding profile or profiles 17 it is also conceivable to keep the outer surface of the radial wall 13 plane, and to form protruding profiles 17, for example ribs, only on the inner surface of this radial wall 13, particularly for do not increase the elasticity of the capsule.
  • said at least one projecting profile 17 may also be made by adding material, for example by welding and / or gluing.
  • said at least one projecting profile 17, instead of being prefabricated in said fastener element 10 before assembly, could be made at the time of assembly of the fastening element 10 on the neck 31 of the tank 30.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (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 fluid product dispensing device, comprising a dispensing member (20), such as a pump or a valve, mounted on the neck (31) of a container (30) containing a product to be dispensed, with interposition of a neck seal (1) to ensure sealing at said neck (31) of the container (30), said dispensing member (20) being mounted on said neck (31) by means of an attachment element (10), comprising an attachment portion (12) for attaching to said neck (31) of the container (30) and a compression portion (13) for compressing said neck seal (1) against said neck (31) of the container (30), said compression portion (13) comprising at least one protruding profile (17) capable of exerting stresses in said neck seal (1) after assembly, in which, after assembly, said neck (31) of the container (30) generates first stresses in said neck seal (1) and said at least one protruding profile (17) of the attachment element (10) generates second stresses in said neck seal (1), said first stresses being approximately axially opposite said second constraints, said neck (31) of the container comprising an upper edge with a curved shape, said neck (31) defining, at its end, a ridge (32) in contact with said neck seal (1), said at least one protruding profile (17) being disposed radially outside or inside said ridge (32) when the attachment element (10) is assembled on the neck (31) of the container (30), said first and second stresses being approximately axially opposite one another but radially offset, such that said first and second stresses balance at least partially.

Description

Dispositif de distribution de produit fluide  Fluid dispensing device
La présente invention concerne un dispositif de distribution de produit fluide comportant un élément de fixation d'un organe de distribution sur le col d'un récipient. Plus particulièrement, la présente invention concerne une capsule de fixation pour fixer une valve doseuse sur le col d'un récipient avec interposition d'un joint de col pour assurer l'étanchéité au niveau du col du récipient. The present invention relates to a fluid dispenser device comprising a fastener member of a dispensing member on the neck of a container. More particularly, the present invention relates to a fixing cap for attaching a metering valve to the neck of a container with the interposition of a neck seal for sealing at the neck of the container.
Il est d'usage courant d'utiliser un élément de fixation pour fixer une pompe ou une valve sur le col d'un récipient. Un élément de fixation typique comporte généralement une partie de réception pour recevoir fixement l'organe de distribution, une partie de fixation pour se fixer au col dudit récipient, et une partie "intermédiaire" qui, après mise en place de l'élément de fixation assure la compression du joint de col sur le bord supérieur du col du récipient pour garantir l'étanchéité. Ces éléments de fixation typiques, qui peuvent être des bagues vissables ou encliquetables, ou des capsules sertissables, présentent un certain nombre d'inconvénients. Notamment dans le cas de distributeurs contenant des gaz propulseurs, le bord supérieur du récipient définit généralement une arête vive. Lors de l'assemblage de l'élément de fixation, le serrage du joint de col se fait entre cette arête du récipient et un plat de l'élément de fixation, généralement une capsule de sertissage. Cela se traduit mécaniquement par des contraintes très élevées coté récipient, d'où un risque de découpe du joint, alors que les contraintes restent faibles du coté de l'élément de fixation, générant ainsi un risque de fuite et donc de dysfonctionnement du joint de col après assemblage. Cet équilibre entre risque de fuite et découpe du joint rend le procédé de fixation d'une valve sur un récipient au moyen d'une capsule très délicat, surtout sur des volumes industriels. Les documents US-3 083 854, PJ 2004/099180, EP-0 252 370, DE 29 06 308 et FR-2 775 263 décrivent des dispositifs de l'art antérieur.  It is common practice to use a fastener to attach a pump or valve to the neck of a container. A typical fastener generally includes a receiving portion for fixedly receiving the dispensing member, a fastening portion for attachment to the neck of said container, and an "intermediate" portion which, after placement of the fastener ensures the compression of the neck seal on the upper edge of the neck of the container to ensure sealing. These typical fasteners, which may be screw or snap rings, or crimpable caps, have a number of disadvantages. Particularly in the case of distributors containing propellants, the upper edge of the container generally defines a sharp edge. When assembling the fastener, the clamping of the neck seal is between this edge of the container and a plate of the fastener, usually a crimping cap. This is mechanically translated by very high constraints on the container side, resulting in a risk of cutting the seal, while the constraints remain low on the side of the fastener, thus generating a risk of leakage and therefore malfunction of the seal. collar after assembly. This balance between risk of leakage and cutting of the seal makes the process of fixing a valve on a container by means of a very delicate capsule, especially on industrial volumes. US-3,083,854, PJ 2004/099180, EP-0252 370, DE 29 06 308 and FR-2,775,263 disclose devices of the prior art.
La présente invention a pour but de fournir un élément de fixation qui ne reproduit pas les inconvénients précités. La présente invention a notamment pour but de fournir un élément de fixation qui soit simple et peu coûteux à fabriquer et à assembler. The present invention aims to provide a fastener that does not reproduce the aforementioned drawbacks. The present invention is intended to provide a fastener element that is simple and inexpensive to manufacture and assemble.
La présente invention a aussi pour but de fournir un tel élément de fixation qui limite les risques de dysfonctionnement du joint de col lors de l'assemblage.  The present invention also aims to provide such a fastener which limits the risk of malfunction of the neck seal during assembly.
La présente invention a aussi pour but de fournir un tel élément de fixation qui autorise des tolérances de fabrication relativement élevées.  The present invention also aims to provide such a fastener which allows relatively high manufacturing tolerances.
La présente invention a également pour but de fournir un dispositif de distribution de produit fluide qui peut être réalisé et assemblé à faible coût, tout en garantissant une parfaite étanchéité.  The present invention also aims to provide a fluid dispenser device that can be made and assembled at low cost, while ensuring a perfect seal.
La présente invention a donc pour objet un dispositif de distribution de produit fluide, comportant un organe de distribution, tel qu'une pompe ou une valve, monté sur le col d'un récipient contenant un produit à distribuer, avec interposition d'un joint de col pour assurer l'étanchéité au niveau dudit col du récipient, ledit organe de distribution étant monté sur ledit col au moyen d'un élément de fixation, comportant une partie de fixation pour se fixer audit col du récipient et une partie de compression pour comprimer ledit joint de col sur ledit col du récipient, ladite partie de compression comportant au moins un profil saillant adapté à exercer des contraintes dans ledit joint de col après assemblage, dans lequel, après assemblage, ledit col du récipient génère des premières contraintes dans ledit joint de col et ledit au moins un profil saillant de l'élément de fixation génère des secondes contraintes dans ledit joint de col, lesdites premières contraintes étant environ axialement opposées auxdites secondes contraintes, ledit col du récipient comportant un bord supérieur de forme courbée, ledit col définissant à son extrémité une arête en contact avec ledit joint de col, ledit au moins un profil saillant étant disposé radialement à l'extérieur ou à l'intérieur de ladite arête lorsque l'élément de fixation est assemblé sur le col du récipient, lesdites premières et secondes contraintes étant environ axialement opposées mais radialement décalées, de sorte que lesdites premières et secondes contraintes s'équilibrent au moins partiellement. Avantageusement, ladite partie de compression comporte une paroi radiale, ledit au moins un profil saillant étant saillant axialement hors de ladite paroi radiale en direction dudit joint de col. The present invention therefore relates to a fluid dispensing device, comprising a dispensing member, such as a pump or a valve, mounted on the neck of a container containing a product to be dispensed, with the interposition of a seal collar for sealing at said neck of the container, said dispensing member being mounted on said neck by means of a fastener, having a fixing portion for attaching to said container neck and a compression portion for compressing said neck seal on said neck of the container, said compression portion having at least one projecting profile adapted to exert stresses in said neck joint after assembly, wherein, after assembly, said container neck generates first stresses in said collar seal and said at least one protruding profile of the fastener element generates second stresses in said neck seal, said first contrai said neck of the container having a curved upper edge, said neck defining at its end an edge in contact with said neck joint, said at least one projecting profile being arranged radially outwardly; or within said edge when the fastener is assembled on the neck of the container, said first and second stresses being approximately axially opposite but radially offset, so that said first and second stresses at least partially equilibrate. Advantageously, said compression portion comprises a radial wall, said at least one projecting profile projecting axially out of said radial wall towards said neck joint.
Avantageusement, ledit au moins un profil saillant est un cordon saillant continu autour dudit élément de fixation.  Advantageously, said at least one projecting profile is a continuous projecting bead around said fixing element.
En variante, l'élément de fixation peut comporter une pluralité de profils saillants répartis autour dudit élément de fixation.  Alternatively, the fastening element may comprise a plurality of projecting profiles distributed around said fastener element.
Avantageusement, ledit au moins un profil saillant est réalisé par déformation de matière, notamment par emboutissage, ou par ajout de matière, notamment par soudage et/ou par collage.  Advantageously, said at least one projecting profile is produced by deformation of material, in particular by stamping, or by addition of material, in particular by welding and / or gluing.
Avantageusement, ladite partie de fixation comporte des moyens de sertissage, d'encliquetage ou de vissage.  Advantageously, said fixing portion comprises means for crimping, snapping or screwing.
Avantageusement, ledit élément de fixation comporte une partie de réception pour recevoir ledit organe de distribution.  Advantageously, said fixing element comprises a receiving part for receiving said dispensing member.
Avantageusement, ledit au moins un profil saillant augmente la surface de contact entre le joint de col et le col du récipient et/ou augmente la pression de contact entre le joint de col et le col du récipient et/ou augmente la pression de contact entre le joint de col et l'élément de fixation.  Advantageously, said at least one projecting profile increases the contact surface between the neck seal and the neck of the receptacle and / or increases the contact pressure between the neck seal and the neck of the receptacle and / or increases the contact pressure between the neck seal and the fastener.
Avantageusement, l'organe de distribution est une valve doseuse et l'élément de fixation est une capsule à sertir, de préférence métallique, qui est fixé au col par sertissage.  Advantageously, the dispensing member is a metering valve and the fixing element is a crimping capsule, preferably metal, which is attached to the neck by crimping.
Ces caractéristiques et avantages et d'autres de la présente invention apparaîtront plus clairement au cours de la description détaillée suivante d'un mode de réalisation particulier de l'invention, donné à tire d'exemple non limitatif, en regard des dessins joints, sur lesquels:  These and other features and advantages of the present invention will appear more clearly in the following detailed description of a particular embodiment of the invention, given by way of non-limiting example, with reference to the accompanying drawings, on which:
- la figure 1 est une vue schématique en coupe d'un dispositif de distribution de produit fluide avec un élément de fixation réalisé selon l'art antérieur,  FIG. 1 is a diagrammatic sectional view of a fluid product dispensing device with a fixing element produced according to the prior art,
- la figure 2 est une vue schématique en coupe, montrant en détail les contraintes exercées par le col du récipient sur le joint de col après assemblage de l'élément de fixation selon l'art antérieur, - la figure 3 est une vue similaire à celle de la figure 2, avec un élément de fixation réalisé selon un mode de réalisation avantageux de la présente invention, et FIG. 2 is a diagrammatic sectional view showing in detail the stresses exerted by the neck of the receptacle on the neck seal after assembly of the fastening element according to the prior art, FIG. 3 is a view similar to that of FIG. 2, with a fastening element made according to an advantageous embodiment of the present invention, and
- la figure 4 est une vue schématique en coupe d'un élément de fixation selon un mode de réalisation avantageux de la présente invention.  - Figure 4 is a schematic sectional view of a fastener according to an advantageous embodiment of the present invention.
La description ci-après va être réalisée en référence à un élément de fixation réalisé sous la forme d'une capsule de fixation d'une valve doseuse sur un col de récipient contenant un produit et un gaz propulseur, notamment un gaz HFA, mais il est entendu que la présente invention s'applique à tous types d'éléments de fixation (bague ou capsule) d'un organe de distribution quelconque (pompe, valve doseuse ou valve non doseuse) sur un col de récipient contenant un produit fluide quelconque (liquide, pulvérulent ou pâteux) avec ou sans gaz propulseur.  The following description will be made with reference to a fixing element made in the form of a capsule for fixing a metering valve on a container neck containing a product and a propellant gas, in particular an HFA gas, but It is understood that the present invention applies to all types of fastening elements (ring or capsule) of any dispensing member (pump, metering valve or non-metering valve) on a container neck containing any fluid product ( liquid, powdery or pasty) with or without propellant.
En référence à la figure 1 , le dispositif de distribution comporte un organe de distribution, tel qu'une valve doseuse 20, qui vient s'assembler sur le col 31 d'un récipient 30, au moyen d'un élément de fixation 10, en particulier une capsule sertissable. La valve doseuse 20 peut être quelconque et ne sera donc pas décrite plus en détail ci-après. Cette valve doseuse peut notamment comporter un corps de valve dans lequel coulisse une soupape. Ce corps de valve vient avantageusement se fixer dans une partie de réception 1 1 de l'élément de fixation 10 qui peut être prévue pour recevoir et maintenir fixement le corps de valve, en particulier par encliquetage ou sertissage. L'élément de fixation 10 comporte également une partie de fixation 12 pour se fixer audit col 31 du récipient 30, ladite partie de fixation 12 pouvant comporter des moyens de sertissage, d'encliquetage ou de vissage ou tout autre moyen connu. Dans l'exemple représenté sur la figure 1 , il s'agit de moyens de sertissage. L'élément de fixation 10 comporte en outre une partie de compression, formée de préférence par une paroi radiale 13 reliant la partie de réception 1 1 à la partie de fixation 12, et qui est destinée après assemblage à comprimer le joint de col 1 sur le col 31 du récipient pour assurer l'étanchéité à cet endroit. Les figures 1 et 2 montrent un col 31 de récipient 30 classique pour des dispositifs contenant un gaz propulseur, avec le bord supérieur de forme courbée qui définit à son extrémité une arête 32 en contact avec ledit joint de col. Cette arête 32, qui peut être vive, génère des premières contraintes élevées dans le joint de col pendant et après l'assemblage, ce qui peut provoquer un risque de découpe du joint de col 1 . Au contraire, le bord opposé du joint du joint de col 1 est lui en contact avec une paroi radiale 13 plane de l'élément de fixation 10, ce qui génère seulement de faibles contraintes sur le joint, générant ainsi un risque de fuite. Pour éviter ce risque de fuite, il faut exercer une pression supérieure sur le joint au niveau de la paroi radiale 13, mais alors ce joint risque d'être découpé par l'arête 32 du col 31 . Si l'on veut éviter ce risque de découpe du joint de col par l'arête 32, il faut limiter la force d'appui de l'élément de fixation 10 sur le joint de col, avec par conséquent des risques de fuites au niveau de la paroi radiale plane 13 de la capsule. Ces deux exigences opposées sont difficiles à concilier lors de l'assemblage de l'élément de fixation, en particuliers dans des volumes industriels, rendant délicate l'étape d'assemblage de l'élément de fixation. With reference to FIG. 1, the dispensing device comprises a dispensing member, such as a metering valve 20, which is assembled on the neck 31 of a receptacle 30, by means of a fastening element 10, in particular a crimpable capsule. The metering valve 20 may be arbitrary and will therefore not be described in more detail below. This metering valve may include in particular a valve body in which slides a valve. This valve body is advantageously fixed in a receiving part 1 1 of the fastening element 10 which can be provided for receiving and fixedly hold the valve body, in particular by snapping or crimping. The fastening element 10 also comprises a fastening portion 12 for attaching to said neck 31 of the container 30, said fastening portion 12 may comprise crimping, latching or screwing means or any other known means. In the example shown in Figure 1, it is crimping means. The fastening element 10 further comprises a compression part, preferably formed by a radial wall 13 connecting the receiving part 1 1 to the fixing part 12, and which is intended after assembly to compress the neck seal 1 on the neck 31 of the container to seal at this location. Figures 1 and 2 show a conventional container neck 30 for devices containing a propellant gas, with the curved upper edge defining at its end an edge 32 in contact with said neck seal. This edge 32, which can be sharp, generates first high stresses in the neck joint during and after assembly, which can cause a risk of cutting the neck seal 1. On the contrary, the opposite edge of the seal of the neck seal 1 is in contact with a radial wall 13 of the fixing element 10, which generates only small stresses on the seal, thus generating a risk of leakage. To avoid this risk of leakage, it is necessary to exert a greater pressure on the seal at the radial wall 13, but then this seal may be cut by the edge 32 of the neck 31. If it is desired to avoid this risk of cutting the neck seal by the edge 32, it is necessary to limit the bearing force of the fastening element 10 on the neck joint, with the consequent risk of leakage at the level of the neck. the plane radial wall 13 of the capsule. These two opposite requirements are difficult to reconcile during the assembly of the fastener, in particular in industrial volumes, making the assembly step of the fastening element difficult.
Selon l'invention, ladite partie de compression, notamment la paroi radiale 13, de l'élément de fixation 10 comporte au moins un profil saillant 17 adapté à exercer des secondes contraintes dans ledit joint de col 1 après assemblage de l'élément de fixation 10.  According to the invention, said compression part, in particular the radial wall 13, of the fastening element 10 comprises at least one projecting profile 17 adapted to exert second stresses in said neck seal 1 after assembly of the fastener element. 10.
De préférence, ledit au moins un profil saillant 17 est saillant axialement hors de ladite paroi radiale 13, en direction dudit joint de col 1 . Différentes variantes de réalisation sont possibles. Ainsi, ledit au moins un profil saillant peut être formé par un cordon saillant continu tout autour de ladite paroi radiale 13 dudit élément de fixation 10. En variante, une pluralité de profils saillants répartis autour dudit élément de fixation est aussi envisageable.  Preferably, said at least one projecting profile 17 projects axially out of said radial wall 13, towards said neck seal 1. Different embodiments are possible. Thus, said at least one projecting profile may be formed by a continuous projecting bead all around said radial wall 13 of said fastening element 10. Alternatively, a plurality of projecting profiles distributed around said fastener element is also conceivable.
Après assemblage de l'élément de fixation 10, ledit col 31 du récipient 30 génère des premières contraintes dans ledit joint de col 1 et ledit au moins un profil saillant 17 de l'élément de fixation 10 génère des secondes contraintes dans ledit joint de col 1 , lesdites premières contraintes étant environ axialement opposées auxdites secondes contraintes. After assembly of the fastening element 10, said neck 31 of the container 30 generates first stresses in said neck joint 1 and said at least one projecting profile 17 of the fastening element 10 generates seconds constraints in said neck joint 1, said first stresses being approximately axially opposite to said second stresses.
Les dispositifs de distribution, notamment ceux contenant un gaz propulseur, comportent typiquement un récipient dont le col 31 comporte un bord supérieur de forme courbée, définissant généralement à son extrémité une arête 32 en contact avec ledit joint de col, comme représenté sur les figures 1 à 3. Comme expliqué précédemment, cette configuration présente un risque de découpe du joint de col lors de l'assemblage. Avec la présente invention, ce risque est fortement diminué, voire supprimé.  Dispensing devices, in particular those containing a propellant gas, typically comprise a container whose neck 31 has a curved upper edge, generally defining at its end an edge 32 in contact with said neck seal, as shown in FIGS. 3. As previously explained, this configuration presents a risk of cutting the neck seal during assembly. With the present invention, this risk is greatly reduced or even eliminated.
Ledit au moins un profil saillant 17 est disposé radialement à l'extérieur du bord supérieur du col 31 , en particulier de ladite arête 32, lorsque l'élément de fixation 10 est assemblé, lesdites premières et secondes contraintes étant alors environ axialement opposées mais radialement décalées, de sorte que lesdites premières et secondes contraintes s'équilibrent au moins partiellement, diminuant fortement voir supprimant le risque de découpe du joint. Cet équilibrage est schématiquement représenté sur la figure 3. De plus, ledit au moins un profil saillant 17 augmente avantageusement la surface de contact entre le joint de col 1 et le col 31 du récipient 30, en poussant ledit joint de col 1 contre ledit col 31 . La présence dudit au moins un profil saillant 17 augmente également la pression de contact entre le joint de col 1 et le col 31 du récipient 30 d'une part et entre le joint de col 1 et l'élément de fixation 10 d'autre part, améliorant sensiblement l'étanchéité de l'assemblage. La présente invention procure également de bien meilleures tolérances de fabrication et d'assemblage, en rendant l'étape d'assemblage de l'élément de fixation 10 beaucoup moins délicate à maîtriser d'un point de vue industriel. Ainsi, avec des cols de récipient courbés comme représentés sur les figures, en cas de trop forte pression lors du sertissage, ce ne sera pas le joint de col qui sera découpé mais le col du récipient qui pourra se déformer, sans risque de perte d'étanchéité. Il est à noter qu'en variante, le ou les profils saillants 17 pourraient aussi être disposé(s) radialement à l'intérieur de l'arête 32 du col 31 . La fabrication de l'élément de fixation 10 tel que représenté sur les figures 3 et 4 est particulièrement simple. Ainsi, dans le cas d'une capsule métallique, celle-ci peut d'abord être réalisée de manière classique avec une paroi radiale 13 plane, puis cette paroi radiale peut être déformée, par exemple par une déformation de matière telle que l'emboutissage, pour former le ou les profils saillants 17. On peut aussi imaginer garder la surface extérieure de la paroi radiale 13 plane, et former des profils saillants 17, par exemples des nervures, seulement sur la surface intérieure de cette paroi radiale 13, notamment pour ne pas augmenter l'élasticité de la capsule. En variante, ledit au moins un profil saillant 17 peut aussi être réalisé par ajout de matière, par exemple par soudage et/ou par collage. D'autres mises en œuvre pour réaliser ledit au moins un profil saillant sont aussi envisageables. Par exemple, ledit au moins un profil saillant 17, au lieu d'être préfabriqué dans ledit élément de fixation 10 avant assemblage, pourrait être réalisé au moment de l'assemblage de l'élément de fixation 10 sur le col 31 du réservoir 30. Said at least one projecting profile 17 is disposed radially outside the upper edge of the neck 31, in particular of said edge 32, when the fastening element 10 is assembled, said first and second stresses then being approximately axially opposite but radially shifted, so that said first and second stresses equilibrate at least partially, decreasing strongly see eliminating the risk of cutting the seal. This balancing is schematically represented in FIG. 3. Moreover, said at least one projecting profile 17 advantageously increases the contact area between the neck seal 1 and the neck 31 of the container 30, by pushing said neck seal 1 against said neck 31. The presence of said at least one projecting profile 17 also increases the contact pressure between the neck seal 1 and the neck 31 of the container 30 on the one hand and between the neck seal 1 and the fastening element 10 on the other hand , substantially improving the tightness of the assembly. The present invention also provides much better manufacturing and assembly tolerances, making the assembly step of the fastener 10 much less difficult to control from an industrial point of view. Thus, with container necks bent as shown in the figures, in case of excessive pressure during crimping, it will not be the neck seal that will be cut but the neck of the container that can be deformed, without risk of loss of sealing. It should be noted that, alternatively, the salient profile (s) 17 could also be arranged radially inside the edge 32 of the neck 31. The manufacture of the fastener 10 as shown in Figures 3 and 4 is particularly simple. Thus, in the case of a metal capsule, it can first be carried out in a conventional manner with a plane radial wall 13, and then this radial wall can be deformed, for example by deformation of material such as stamping. to form the protruding profile or profiles 17. It is also conceivable to keep the outer surface of the radial wall 13 plane, and to form protruding profiles 17, for example ribs, only on the inner surface of this radial wall 13, particularly for do not increase the elasticity of the capsule. Alternatively, said at least one projecting profile 17 may also be made by adding material, for example by welding and / or gluing. Other implementations to achieve said at least one salient profile are also conceivable. For example, said at least one projecting profile 17, instead of being prefabricated in said fastener element 10 before assembly, could be made at the time of assembly of the fastening element 10 on the neck 31 of the tank 30.
Bien que la présente invention ait été décrite en référence à un mode de réalisation particulier de celle-ci, il est entendu que cette description n'est pas limitative et qu'un homme du métier peut y apporter toute modification utile sans sortir du cadre de la présente invention tel que défini par les revendications annexées.  Although the present invention has been described with reference to a particular embodiment thereof, it is understood that this description is not limiting and that a person skilled in the art can make any useful modification without departing from the scope of the present invention. the present invention as defined by the appended claims.

Claims

Revendications claims
1 .- Dispositif de distribution de produit fluide, comportant un organe de distribution (20), tel qu'une pompe ou une valve, monté sur le col (31 ) d'un récipient (30) contenant un produit à distribuer, avec interposition d'un joint de col (1 ) pour assurer l'étanchéité au niveau dudit col (31 ) du récipient (30), ledit organe de distribution (20) étant monté sur ledit col (31 ) au moyen d'un élément de fixation (10), comportant une partie de fixation (12) pour se fixer audit col (31 ) du récipient (30) et une partie de compression (13) pour comprimer ledit joint de col (1 ) sur ledit col (31 ) du récipient (30), ladite partie de compression (13) comportant au moins un profil saillant (17) adapté à exercer des contraintes dans ledit joint de col (1 ) après assemblage, dans lequel, après assemblage, ledit col (31 ) du récipient (30) génère des premières contraintes dans ledit joint de col (1 ) et ledit au moins un profil saillant (17) de l'élément de fixation (10) génère des secondes contraintes dans ledit joint de col (1 ), lesdites premières contraintes étant environ axialement opposées auxdites secondes contraintes, ledit col (31 ) du récipient comportant un bord supérieur de forme courbée, ledit col (31 ) définissant à son extrémité une arête (32) en contact avec ledit joint de col (1 ), caractérisé en ce que ledit au moins un profil saillant (17) est disposé radialement à l'extérieur ou à l'intérieur de ladite arête (32) lorsque l'élément de fixation (10) est assemblé sur le col (31 ) du récipient (30), lesdites premières et secondes contraintes étant environ axialement opposées mais radialement décalées, de sorte que lesdites premières et secondes contraintes s'équilibrent au moins partiellement. 1 .- Fluid dispensing device, comprising a dispensing member (20), such as a pump or a valve, mounted on the neck (31) of a container (30) containing a product to be dispensed, with interposition a neck seal (1) for sealing at said neck (31) of the container (30), said dispensing member (20) being mounted on said neck (31) by means of a fastener (10), having a fixing portion (12) for attaching to said neck (31) of the container (30) and a pressing portion (13) for compressing said neck seal (1) on said neck (31) of the container (30), said compression portion (13) having at least one projecting profile (17) adapted to exert stresses in said neck joint (1) after assembly, wherein, after assembly, said neck (31) of the container ( 30) generates first stresses in said neck joint (1) and said at least one projecting profile (17) of the fastening element (10) generates second stresses in said neck joint (1), said first stresses being approximately axially opposite to said second stresses, said neck (31) of the container having a curved upper edge, said neck (31) defining at its end a ridge (32) in contact with said neck seal (1), characterized in that said at least one projecting profile (17) is radially disposed outside or inside said ridge (32) when the fixation (10) is assembled on the neck (31) of the container (30), said first and second stresses being approximately axially opposite but radially offset, so that said first and second stresses equilibrate at least partially.
2.- Dispositif selon la revendication 1 , dans lequel ladite partie de compression (13) comporte une paroi radiale, ledit au moins un profil saillant (17) étant saillant axialement hors de ladite paroi radiale (13) en direction dudit joint de col (1 ). 2.- Device according to claim 1, wherein said compression portion (13) comprises a radial wall, said at least one projecting profile (17) projecting axially out of said radial wall (13) towards said neck seal ( 1).
3.- Dispositif selon la revendication 1 ou 2, dans lequel ledit au moins un profil saillant (17) est un cordon saillant continu autour dudit élément de fixation. 3.- Device according to claim 1 or 2, wherein said at least one projecting profile (17) is a continuous projecting bead around said fixing member.
4.- Dispositif selon la revendication 1 ou 2, comportant une pluralité de profils saillants (17) répartis autour dudit élément de fixation (10). 4.- Device according to claim 1 or 2, comprising a plurality of projecting profiles (17) distributed around said fixing member (10).
5. - Dispositif selon l'une quelconque des revendications précédentes, dans lequel ledit au moins un profil saillant (17) est réalisé par déformation de matière, notamment par emboutissage, ou par ajout de matière, notamment par soudage et/ou par collage. 5. - Device according to any one of the preceding claims, wherein said at least one projecting profile (17) is formed by deformation of material, in particular by stamping, or by adding material, in particular by welding and / or gluing.
6. - Dispositif selon l'une quelconque des revendications précédentes, dans lequel ladite partie de fixation (12) comporte des moyens de sertissage, d'encliquetage ou de vissage. 6. - Device according to any one of the preceding claims, wherein said fixing portion (12) comprises means for crimping, latching or screwing.
7. - Dispositif selon l'une quelconque des revendications précédentes, comportant une partie de réception (1 1 ) pour recevoir ledit organe de distribution (20). 7. - Device according to any one of the preceding claims, comprising a receiving portion (1 1) for receiving said dispensing member (20).
8. - Dispositif selon l'une quelconque des revendications précédentes, dans lequel ledit au moins un profil saillant (17) augmente la surface de contact entre le joint de col (1 ) et le col (31 ) du récipient (30) et/ou augmente la pression de contact entre le joint de col (1 ) et le col (31 ) du récipient (30) et/ou augmente la pression de contact entre le joint de col (1 ) et l'élément de fixation (10). 8. - Device according to any one of the preceding claims, wherein said at least one projecting profile (17) increases the contact surface between the neck seal (1) and the neck (31) of the container (30) and / or increases the contact pressure between the neck seal (1) and the neck (31) of the container (30) and / or increases the contact pressure between the neck seal (1) and the fastening element (10) .
9. - Dispositif selon l'une quelconque des revendications précédentes, dans lequel l'organe de distribution (20) est une valve doseuse et l'élément de fixation (10) est une capsule à sertir, de préférence métallique, qui est fixé au col (31 ) par sertissage. 9. - Device according to any one of the preceding claims, wherein the dispensing member (20) is a metering valve and the fixing member (10) is a crimping capsule, preferably metal, which is fixed to the neck (31) by crimping.
EP12787757.9A 2011-10-05 2012-10-02 Fluid product dispensing device Active EP2763913B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1158971A FR2981054B1 (en) 2011-10-05 2011-10-05 FIXING ELEMENT OF A DISTRIBUTION MEMBER ON THE COLLAR OF A CONTAINER AND DEVICE FOR DISPENSING FLUID PRODUCT COMPRISING SUCH A FIXING MEMBER.
PCT/FR2012/052225 WO2013050693A1 (en) 2011-10-05 2012-10-02 Fluid product dispensing device

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EP2763913A1 true EP2763913A1 (en) 2014-08-13
EP2763913B1 EP2763913B1 (en) 2015-12-30

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CN (1) CN104010948B (en)
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US20140231466A1 (en) 2014-08-21
FR2981054A1 (en) 2013-04-12
EP2763913B1 (en) 2015-12-30
US10518278B2 (en) 2019-12-31
WO2013050693A1 (en) 2013-04-11
FR2981054B1 (en) 2015-01-16
CN104010948A (en) 2014-08-27
CN104010948B (en) 2015-11-25

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