EP1185376B1 - Fluid product dispenser - Google Patents

Fluid product dispenser Download PDF

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Publication number
EP1185376B1
EP1185376B1 EP20000927352 EP00927352A EP1185376B1 EP 1185376 B1 EP1185376 B1 EP 1185376B1 EP 20000927352 EP20000927352 EP 20000927352 EP 00927352 A EP00927352 A EP 00927352A EP 1185376 B1 EP1185376 B1 EP 1185376B1
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EP
European Patent Office
Prior art keywords
device
device according
piece
end
outer body
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.)
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EP20000927352
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German (de)
French (fr)
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EP1185376A1 (en
Inventor
Frédéric HELDT
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Aptar France SAS
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Aptar France SAS
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Publication date
Priority to FR9906496 priority Critical
Priority to FR9906496A priority patent/FR2793708B1/en
Application filed by Aptar France SAS filed Critical Aptar France SAS
Priority to PCT/FR2000/001321 priority patent/WO2000071263A1/en
Publication of EP1185376A1 publication Critical patent/EP1185376A1/en
Application granted granted Critical
Publication of EP1185376B1 publication Critical patent/EP1185376B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/02Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a follower, e.g. membrane, floating piston, in container for liquid or other fluent material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3452Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the cooperating elements being movable, e.g. adjustable relative to one another
    • B05B1/3457Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the cooperating elements being movable, e.g. adjustable relative to one another in response to liquid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/0005Components or details
    • B05B11/0062Outlet valves actuated by the pressure of the fluid to be sprayed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus
    • B05B11/02Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a follower, e.g. membrane, floating piston, in container for liquid or other fluent material
    • B05B11/025Single-unit, i.e. unitary, hand-held apparatus comprising a container and a discharge nozzle attached thereto, in which flow of liquid or other fluent material is produced by the muscular energy of the operator at the moment of use or by an equivalent manipulator independent from the apparatus the flow being effected by a follower, e.g. membrane, floating piston, in container for liquid or other fluent material with stepwise advancement of the follower, e.g. for spraying a predetermined quantity of the liquid or other fluid material

Abstract

The invention concerns a fluid product dispenser comprising a reservoir (10) containing one or several doses of product, a dispensing orifice (20) and a dispensing member (30). The invention is characterised in that said reservoir is a syringe-type reservoir (10), comprising a hollow tube (10) provided with an upstream opening (12) and a downstream opening (13), said upstream opening (12) comprising a plunger (40) forming a sealing top when inactivated, co-operating with an actuating rod (30) forming a dispensing member, and said downstream opening (13) comprising a hub (50) incorporating an inner seal (51) to form a sealing top at rest, and capable of defining a spraying profile (55) when the device is activated.

Description

La présente invention concerne un dispositif de distribution de produit fluide, et plus particulièrement un dispositif de pulvérisation de produit fluide à deux doses, conformément au préambule de la revendication 1. Un tel dispositif est connu de document EP 0 452 728. The present invention relates to a fluid dispensing device, and more particularly to a fluid spray device with two doses, according to the preamble of claim 1. Such a device is known from EP 0452728.

Les dispositifs monodoses ou bidoses sont bien connus dans l'état de la technique, et un bidose est notamment divulgué dans le document FR-2 761 281. The monodose or bidoses devices are well known in the prior art, a two-dose and is particularly disclosed in FR-2761281.

Du fait que les bidoses ne comportent que peu de produit, le coût de fabrication du dispositif de distribution doit de manière évidente être maintenu le plus bas possible. Because bidoses have only little product, the manufacturing cost of the distribution system must obviously be kept as low as possible. Toutefois, le produit pouvant être un produit pharmaceutique, la précision de dosage et la qualité de la distribution doivent être optimales. However, the product may be a pharmaceutical product, the dosing accuracy and quality of the distribution must be optimal. De plus, la simplicité d'utilisation est également un critère très important dans les dispositifs à une ou deux doses. In addition, ease of use is also a very important criterion in the devices to one or two doses. De plus, le fabriquant du produit à distribuer étant souvent différent du fabriquant du dispositif de distribution, il est très souhaitable que le remplissage du réservoir, ainsi que l'outillage nécessaire à ce remplissage soient les plus simples et les moins coûteux possible, et correspondent de préférence à un remplissage et un outillage de type standard bien connus par les fabricants de produit fluide. In addition, the manufacturer of the product to be dispensed are often different from the manufacturer of the dispenser device, it is highly desirable that the filling of the reservoir, as required for this filling tool are as simple and inexpensive as possible, and correspond preferably to a filling and a standard type of equipment well known to the fluid product manufacturers.

La présente invention a pour but de fournir un dispositif de distribution de produit fluide, en particulier un dispositif bidose, qui procure des performances optimales dans la qualité de la distribution ainsi que dans la fiabilité de fonctionnement, tout en étant très simple et peu coûteux à réaliser et à assembler. The present invention aims to provide a fluid delivery device, particularly a two-dose device that provides optimal performance in the quality of the distribution as well as operational reliability, while being very simple and inexpensive to make and assemble. En particulier, le bidose du document FR- 2 761 281 comporte neuf pièces. In particular, the two-dose of the document FR 2,761,281 has nine rooms. C'est un but de la présente invention de fournir un dispositif de distribution de type bidose constitué d'un nombre inférieur de pièces. It is an object of the present invention to provide a type of two-dose dispensing device consisting of a lower number of parts.

C'est également un but de la présente invention de fournir un tel dispositif de distribution de produit fluide, notamment un bidose, dans lequel le réservoir peut être prérempli et fermé hermétiquement de manière étanche, avant l'assemblage du dispositif. It is also an object of the present invention to provide such a fluid dispenser device, in particular a two-dose, wherein the reservoir can be pre-filled and hermetically sealed, before assembly of the device.

La présente invention a également pour but de fournir un dispositif de distribution de produit fluide, notamment un bidose, dans lequel le réservoir est constitué d'un réservoir standard dont le remplissage est bien connu et donc simple pour le fabriquant du produit à distribuer, sans avoir besoin d'un outillage particulier compliqué et coûteux. The present invention also aims to provide a fluid dispenser device, in particular a two-dose, wherein the reservoir consists of a standard tank whose filling is well known and therefore simple for the manufacturer of the product to be dispensed, without need a complicated and expensive special tools.

La présente invention a également pour but de fournir un dispositif de distribution de produit fluide, notamment un bidose, qui simultanément garantit la parfaite étanchéité du produit contenu dans le réservoir et la parfaite pulvérisation de chaque dose de produit à chaque actionnement du dispositif. The present invention also aims to provide a fluid dispenser device, in particular a two-dose device which simultaneously ensures the perfect sealing of the product contained in the reservoir and the perfect spraying of each dose on each actuation of the device.

La présente invention a encore pour but de fournir un dispositif de distribution de produit fluide, notamment un bidose, dans lequel la distribution totale de la dose est garantie à chaque actionnement et pour lequel tout actionnement accidentel ou non souhaité est impossible. The present invention further aims to provide a fluid dispenser device, in particular a two-dose, wherein the total dose distribution is guaranteed on each actuation, and for which inadvertent actuation or not desired is impossible.

La présente invention a donc pour objet un dispositif de distribution de produit fluide selon la revendication 1. The present invention thus relates to a fluid dispenser device according to claim 1.

Avantageusement, ledit embout comporte une partie d'obturation déformable pour obturer au repos de manière étanche ladite ouverture aval et se déformer lors de l'actionnement du dispositif pour ouvrir ladite ouverture aval, et une partie de pulvérisation pour former un profil de pulvérisation lors de la distribution du produit. Advantageously, said end piece comprises a deformable sealing portion for sealing at rest sealingly said downstream opening and deform during actuation of the device to open said downstream opening, and a spray portion for forming a spray profile when product distribution.

Avantageusement, ladite partie de pulvérisation de l'embout coopére avec la paroi de fond dudit corps externe pour définir le profil de pulvérisation lors de l'actionnement du dispositif. Advantageously, said spray portion of the nozzle cooperates with the bottom wall of said outer body to define the spray profile when the device is actuated.

Avantageusement, ledit embout comporte un plot central cylindrique formant d'un coté l'obturateur de l'ouverture aval de la seringue, et de l'autre côté, une surface plane, ledit plot étant déplacé axialement lors de l'actionnement du dispositif pour d'une part ouvrir l'ouverture aval de la seringue et d'autre part, plaquer ladite surface plane contre la paroi de fond du corps externe incorporant des canaux de tourbillonnement de telle sorte que ledit plot définit le profil de pulvérisation lors de l'actionnement. Advantageously, said end piece comprises a cylindrical central block forming one side of the shutter the downstream opening of the syringe, and on the other side, a plane surface, said stud being moved axially upon actuation of the device for firstly open the downstream opening of the syringe and on the other hand, plating said plane surface against the bottom wall of the outer body incorporating swirl channels so that said stud defines the spray profile when the actuation.

De préférence, dans lequel ledit embout est réalisé d'une seule pièce en un matériau élastomère Preferably wherein said cap is made in one piece of an elastomeric material

De préférence, ladite tige d'actionnement, déplaçable axialement par l'utilisateur pour distribuer le produit, coopère avec un corps externe pourvu de moyens d'accumulation d'énergie pour créer une accumulation d'énergie dans les doigts de l'utilisateur garantissant la distribution de la totalité de la dose lors de chaque actionnement. Preferably, said actuating axially displaceable rod by the user to dispense the fluid, co-operates with an outer body provided with energy storage means for creating an accumulation of energy in the user's fingers guaranteeing distribution of the entire dose at each actuation.

Avantageusement, ledit corps et ladite tige d'actionnement coopèrent pour empêcher un actionnement accidentel du dispositif. Advantageously, said body and said actuating rod co-operate to prevent accidental actuation of the device.

De préférence, ladite seringue comporte deux doses de produit, et ledit corps externe forme une butée dans la course axiale de la tige d'actionnement, pour séparer celle-ci en deux courses partielles correspondant à chacune des doses. Preferably, said syringe contains two doses of fluid, and said outer body forms an abutment in the axial stroke of the actuating rod to separate the latter into two partial strokes corresponding to each dose.

Avantageusement, après l'expulsion de la première dose, ladite tige d'actionnement doit être déplacée en rotation par rapport audit corps externe pour pouvoir expulser la deuxième dose. Advantageously, after the expulsion of the first dose, said actuating rod must be moved in rotation relative to said outer body to be able to expel the second dose.

Avantageusement, le corps externe comporte des moyens anti-retour coopérant avec ladite tige pour ne permettre la rotation et/ou le déplacement axial de la tige respectivement que dans une seule direction. Advantageously, the outer body has non-return means cooperating with said rod to not allow rotation and / or axial displacement of the rod that respectively only in one direction.

Avantageusement, ledit corps externe incorpore une fenêtre au niveau de la seringue pour visualiser la dose à expulser. Advantageously, said outer body incorporates a window level with the syringe for viewing the dose to be expelled.

De préférence, ledit corps externe est réalisé en une seule pièce. Preferably, said outer body is made of one piece.

D'autres avantages et caractéristiques de la présente invention apparaítront au cours de la description détaillée suivante de celle-ci, donnée à titre d'exemple non limitatif en regard des dessins joints, sur lesquels : Other features and advantages of the present invention will become apparent from the following detailed description thereof, given by way of non-limiting example in the accompanying drawings, wherein:

  • la figure 1 est une vue schématique explosée du dispositif de distribution selon un mode de réalisation préféré de la présente invention, Figure 1 is a schematic exploded view of the dispensing device according to a preferred embodiment of the present invention,
  • la figure 2 est une vue schématique de côté montrant partiellement le dispositif de distribution de l'invention, Figure 2 is a schematic side view partially showing the dispensing device of the invention,
  • la figure 3 est une vue en perspective du dispositif de distribution selon l'invention, Figure 3 is a perspective view of the dispensing device according to the invention,
  • les figures 4 et 5 sont deux vues schématiques en section transversale du dispositif selon la présente invention, respectivement selon un angle de vue différent, Figures 4 and 5 are two schematic views in cross section of the device according to the present invention, respectively in a different viewing angle,
  • la figure 6 est une vue schématique en section transversale de la partie supérieure du réservoir incorporant l'embout, réalisé selon un mode réalisation de la présente invention, avant assemblage du dispositif de distribution dans le corps externe, Figure 6 is a schematic view in cross section of the top of the tank incorporating the mouthpiece, directed according to an embodiment of the present invention, before assembly of the dispensing device in the outer body,
  • la figure 7 est une vue schématique en section transversale similaire à celle de la figure 6, après assemblage du réservoir et de l'embout dans le corps externe, et Figure 7 is a schematic view in cross section similar to that of Figure 6, after assembly of the tank and the nozzle into the outer body, and
  • les figures 8 et 9 sont des vues schématiques en section transversale de la partie supérieure du dispositif de distribution de produit fluide selon un mode de réalisation préféré de la présente invention, respectivement en positon de repos et en position d'expulsion. Figures 8 and 9 are schematic views in cross section of the upper portion of the fluid dispenser device according to a preferred embodiment of the present invention, respectively in the rest position and expulsion position.

En référence à la figure 1, le dispositif de distribution de produit fluide de la présente invention comporte avantageusement seulement cinq pièces. Referring to Figure 1, the fluid delivery device of the present invention preferably comprises only five parts. Il s'agit d'un réservoir 10, avantageusement réalisé sous la forme d'un corps de seringue comportant un corps creux 11 pourvu d'une ouverture amont 12 et d'une ouverture aval 13. L'ouverture amont 13 est obturée de manière étanche par un bouchon 40 adapté à former le piston de distribution lorsqu'il est actionné par l'intermédiaire d'une tige d'actionnement 30, alors que l'ouverture aval 13 est obturée de manière étanche par un embout 50. L'ensemble formé par la seringue 10, l'embout 50, le piston bouchon 40 et la tige d'actionnement 30 vient ensuite se fixer dans un corps externe 80. There is a tank 10, advantageously made in the form of a syringe body having a hollow body 11 provided with an upstream opening 12 and a downstream opening 13. The upstream opening 13 is closed so sealed by a plug 40 adapted to form the dispensing piston when actuated via an actuating rod 30, while the downstream opening 13 is sealingly closed by an end cap 50. the assembly formed by the syringe 10, the tip 50, the piston cap 40 and the actuating rod 30 then is attached in an outer body 80.

Le corps externe 80, de préférence réalisé d'une seule pièce, incorpore l'orifice de distribution 20 et est adapté à coopérer avec la tige d'actionnement 30 pour assurer un actionnement correct du dispositif. The outer body 80, preferably constructed in one piece incorporates the dispensing orifice 20 and is adapted to cooperate with the actuator rod 30 to ensure proper actuation of the device. Avantageusement, le corps externe 80 comporte une fenêtre 89 au niveau du réservoir 10 pour visualiser de l'extérieur le contenu dudit réservoir. Advantageously, the outer body 80 has a window 89 in the reservoir 10 to see from the outside the content of said tank. Cette caractéristique est particulièrement avantageuse dans le cas d'un bidose car cela permet de savoir si la première dose a été distribuée ou non. This feature is particularly advantageous in the case of a two-dose because it lets you know if the first dose was distributed or not.

Le réservoir 10 est, comme mentionné précédemment, de préférence formé par un corps de seringue. The reservoir 10 is, as mentioned above, preferably formed by a syringe body. Ceci facilite grandement le remplissage du réservoir, du fait que le remplissage des seringues est bien connu et largement maítrisé par les fabricants de produit fluide. This greatly facilitates the filling of the tank, that the filling of syringes is well known and widely controlled by the fluid manufacturers. De cette manière, la seringue 10 est préremplie puis ses deux ouvertures amont et aval 12 et 13 sont bouchées au moyen du bouchon piston 40 d'une part et de l'embout 50 d'autre part, de sorte que l'unité formée du réservoir 10 et des deux bouchons 40 et 50 peut être préremplie avant l'assemblage final du dispositif de l'invention. In this manner, the syringe 10 is prefilled and then both upstream and downstream openings 12 and 13 are blocked by means of the plunger stopper 40 on the one hand and the end piece 50 on the other, so that the unit formed by the tank 10 and the two plugs 40 and 50 may be pre-filled prior to final assembly of the device of the invention. Il n'est donc pas nécessaire de prévoir chez le fabriquant du produit fluide un outillage spécial pour assembler un dispositif compliqué simultanément au remplissage, ou pour remplir un dispositif déjà assemblé It is therefore not necessary to provide to the manufacturer of the fluid special tools to assemble a complicated device simultaneously filling, or to fill an already assembled device

Selon l'invention, l'embout 50 procure avantageusement simultanément trois fonctions. According to the invention, the tip 50 advantageously provides three functions simultaneously. D'une part, il obture de manière étanche l'ouverture aval 13 de la seringue 10. D'autre part, il fournit une précompression lors de la distribution. First, it seals off the downstream opening 13 of the syringe 10. On the other hand, it provides a precompression during distribution. Enfin, il comporte des moyens adaptés à former un profil de pulvérisation au niveau de l'orifice de distribution 20 du dispositif pour, lors de l'actionnement du dispositif, distribuer de manière finement pulvérisée, la dose de produit. Finally, it comprises means suitable for forming a spray profile at the dispensing orifice 20 of the device to, upon actuation of the device, dispense finely powdered form, the dose of product. Cet embout, réalisé de préférence en une seule pièce en un matériau élastomère, est plus précisément représenté sur les figures 6 à 9. Il comporte avantageusement une partie de fixation 54 pour se fixer sur ladite ouverture 13 de la seringue 10, avantageusement par encliquetage. This tip, preferably made of one piece from an elastomeric material, is more accurately shown in Figures 6 to 9. It advantageously includes an attachment portion 54 for attachment to said opening 13 of the syringe 10, preferably by snap-fastening. L'embout 50 comporte d'autre part une partie d'obturation déformable 51 agissant en tant qu'obturateur au repos en obturant de manière étanche la seringue, ladite partie d'obturation 51 étant adaptée à se déformer lors de l'actionnement du dispositif, notamment sous l'effet de la pression du produit, pour ouvrir l'ouverture aval 13 du réservoir et permettre l'expulsion d'une dose de produit. The tip 50 comprises other hand a deformable sealing portion 51 acting as a shutter at rest sealingly closing the syringe, said sealing portion 51 adapted to be deformed upon actuation of the device , in particular under the effect of fluid pressure to open the downstream opening 13 of the tank and allow the expulsion of a dose of product. Avantageusement, ledit obturateur 51 est réalisé sous la forme d'un plot 52 qui s'insère de manière étanche dans une partie de diamètre réduit de la sortie de la seringue 10, et qui sous l'effet de la pression du produit se déplace vers une partie de diamètre plus grand de ladite sortie de la seringue libérant ainsi le passage pour le produit. Advantageously, said shutter 51 is made in the form of a stud 52 which fits in sealed manner in a reduced diameter portion of the output syringe 10, and which under the effect of fluid pressure moves a larger diameter portion of said output of the syringe thereby releasing the passage for the product.

Selon l'invention, l'embout 50 comporte également avantageusement une partie de pulvérisation 56 adaptée à former un profil de pulvérisation 55 lors de la distribution du produit. According to the invention, the nozzle 50 also advantageously comprises a portion 56 adapted to spray form a spray pattern 55 during dispensing of the product. Cette partie de pulvérisation 56 est avantageusement réalisée sous la forme d'une surface plane et peut notamment être réalisée sur le côté opposé du plot 52 formant l'obturateur 51. Comme cela est mieux visible en référence à la figure 8, en position de repos, la partie inférieure du plot 52 formant l'obturateur 51 obture la seringue 10 alors que la partie supérieure du plot formant la partie de pulvérisation 56 est disposée en éloignement de la paroi d'extrémité ou paroi de fond 81 de l'organe externe 80. De préférence, cette paroi de fond 81 de l'organe externe 80 incorpore des canaux de pulvérisation ou d'autres profils de pulvérisation appropriés, et lorsque le plot 52 est déformé ou déplacé pour ouvrir la partie d'obturation 51, comme représenté sur la figure 9, sa surface plane 56 vient se plaquer contre ledit profil de pulvérisation 82, formant ainsi le fond de ce profil et assurant une distribution finement pulvérisée du produit. This spray portion 56 is advantageously formed as a flat surface and can in particular be carried out on the opposite side of pad 52 forming the plug 51. As best seen with reference to Figure 8, in the rest position , the lower part of the stud 52 forming the shutter 51 closes the syringe 10 while the top of the stud forming the spray portion 56 is disposed away from the end wall or bottom wall 81 of the outer member 80 . preferably, this bottom wall 81 of the outer member 80 incorporates spray channels or other appropriate spray patterns, and when the stud 52 is deformed or moved to open the shutter portion 51, as shown in Figure 9, the flat surface 56 is pressed against said spray pattern 82, thereby forming the bottom of the profile and providing a finely pulverized product distribution. Dans ce mode de réalisation préféré, le profil de pulvérisation 55 est donc formé par la coopération de l'embout 50 et de l'organe externe 80. Bien entendu, il serait également envisageable de réaliser le profil de pulvérisation dans l'embout 50, la paroi de fond 81 de l'organe externe 80 pouvant alors être plane et former le fond dudit profil. In this preferred embodiment, the spray profile 55 is therefore formed by the cooperation of the end piece 50 and the outer member 80. Of course, it would also be conceivable to produce the spray profile in the tip 50, the bottom wall 81 of the outer member 80 can then be planar and form the bottom of said profile.

Ainsi, avec une seule et même pièce, à savoir l'embout 50, on obtient l'obturation étanche du réservoir au repos, la pulvérisation de la dose de produit lors de l'actionnement, et une certaine précompression liée à la résistance du plot 52 à se déformer pour ouvrir l'ouverture aval 13 de la seringue 10. Thus, with a single part, namely the tip 50, we obtain the tight closure of the tank at rest, the spray of the dose upon actuation, and a certain precompression due to the resistance of the stud 52 to deform to open the downstream opening 13 of the syringe 10.

Pour encore davantage garantir l'expulsion totale de chaque dose, le dispositif comporte des moyens d'accumulation d'énergie dans la main de l'utilisateur, de préférence réalisés entre le corps externe 80 et la tige d'actionnement 30. Comme représenté sur les dessins, ces moyens d'accumulation d'énergie peuvent être réalisés par des petits plots ou ergots 85 ménagés dans la surface interne de l'organe externe 80 et qui coopèrent avec une plaque d'actionnement 35 solidaire de la tige 30 sur laquelle l'utilisateur appuie pour déplacer ladite tige d'actionnement 30. Une force prédéterminée est nécessaire pour passer par-dessus ces ergots, de sorte que l'utilisateur emmagasine de l'énergie dans ses doigts jusqu'à ce qu'il atteigne cette force, l'énergie étant alors brusquement libérée, garantissant la distribution totale de la dose. To further ensure complete expulsion of each dose, the device comprises means for accumulation of energy in the hand of the user, preferably formed between the outer body 80 and the actuating rod 30. As shown in the drawings, these energy storage means may be embodied by small pins or lugs 85 formed in the inner surface of the outer member 80 and which cooperate with an actuating plate 35 integral with the rod 30 on which the user presses to move said actuating rod 30. A predetermined force is needed to pass over the lugs, so that the user stores energy in his fingers until it reaches this force, the energy is then abruptly released, ensuring total dose distribution. Ces ergots agissent aussi avantageusement pour empêcher un actionnement non souhaité du dispositif. These lugs also act advantageously to prevent unwanted actuation of the device. Avantageusement, comme visible notamment sur les figures 2 et 3, l'organe externe 80 comporte deux rainures dans lesquelles s'étendent les extrémités radiales et ladite plaque 35, empêchant ainsi une rotation de la tige d'actionnement pendant l'actionnement de celle-ci. Advantageously, as shown in particular in Figures 2 and 3, the outer member 80 has two grooves which extend in the radial ends and said plate 35, thus preventing rotation of the actuating rod for actuation of celle- this. Lorsque le dispositif est un bidose, l'organe externe 80 comporte deux rainures qui sont décalées sur la périphérie de l'organe externe, de sorte que pour expulser la seconde dose, il est nécessaire de faire effectuer une rotation à la tige d'actionnement 30 pour présenter la plaque d'actionnement 35 face à la seconde rainure. When the device is a two-dose device, the outer member 80 has two grooves which are offset on the periphery of the outer member, so as to expel the second dose, it is necessary to rotate the actuating rod 30 to present the actuating plate 35 faces the second groove. De nouveau, des moyens d'accumulation d'énergie similaires 85 sont avantageusement prévus pour garantir l'expulsion totale de la seconde dose. Again, means similar energy storage 85 are advantageously provided to ensure complete expulsion of the second dose. D'autre part, le dispositif comporte également avantageusement des moyens anti-retour qui agissent à la fois sur le déplacement axial de la tige 30 et sur le déplacement en rotation de celle-ci. On the other hand, the device also advantageously comprises non-return means which act both on the axial displacement of the rod 30 and the rotational movement thereof. Ces moyens sont avantageusement formés par des rampes 86 qui permettent le passage de la plaque d'actionnement 35 dans un sens mais empêche son déplacement dans le sens inverse. These means are advantageously formed by ramps 86 which allow the passage of the actuating plate 35 in one direction but prevents its movement in the opposite direction. Eventuellement, on peut prévoir des moyens empêchant l'actionnement du dispositif et obligeant à faire effectuer une rotation préalable à la tige d'actionnement 30 avant de pouvoir expulser la première dose. Optionally, there may be provided means for preventing actuation of the device and requiring to perform a preliminary rotation to the actuating rod 30 before being able to expel the first dose. En référence aux figures 2 et 3, qui représentent un bidose, il est visible que les deux rainures décalées du corps externe forme la butée qui fractionne la course d'actionnement en deux assurant la distribution du contenu du réservoir en deux doses. Referring to Figures 2 and 3 which show a two-dose, it is evident that the two grooves offset from the outer body forms the stop which fractionates the actuating stroke in both ensuring the distribution of contents of the tank into two doses. En particulier, après distribution de la première dose, une rotation est nécessaire pour pouvoir expulser la seconde dose. In particular, after dispensing the first dose, a rotation is required to expel the second dose.

La présente invention fournit donc un dispositif de distribution de produit fluide, avantageusement un bidose, qui est constitué seulement de cinq pièces et qui procure simultanément toutes les fonctions suivantes : obturation de la sortie du réservoir au repos et entre les deux doses ; The present invention therefore provides a fluid dispenser device, preferably a two-dose, which consists of only five parts and which simultaneously provides all the following functions: sealing the outlet of the tank at rest between the two doses; précompression lors de l'expulsion de chaque dose ; precompression during the expulsion of each dose; pulvérisation de chaque dose par création d'un profil de pulvérisation au moment de la distribution ; spraying each dose by creating a spray profile at the time of distribution; accumulation d'énergie dans la main de l'utilisateur avant chaque expulsion de dose ; accumulation of energy in the hand of the user prior to each dose of expulsion; sécurité de transport pour empêcher l'actionnement accidentel ; Transport safety to prevent accidental actuation; fonction anti-retour après la première dose empêchant la tige d'actionnement de revenir dans sa position de départ ; non-return function after the first dose preventing the actuator rod to return to its starting position; création d'un ensemble autonome constitué de la seringue, du bouchon piston et de l'embout obturateur permettant un remplissage séparé et aisé de ladite seringue et procurant un dispositif dans lequel le produit n'est en contact qu'avec deux matières, à savoir la matière de la seringue, en général du verre, et celle des deux bouchons, en général une matière élastomère inerte. creating a self-contained assembly constituted by the syringe, the piston cap and the end cap allowing separate filling and easy to said syringe and providing a device wherein the product is in contact with two materials, namely the material of the syringe, usually glass, and the two caps, usually an inert elastomeric material.

Bien entendu, la présente invention a été décrite en référence aux dessins qui représentent un mode de réalisation préféré de celle-ci, mais diverses variantes et modifications pourraient être apportées à l'invention sans sortir du cadre de celle-ci, telles que définies par les revendications annexées. Of course, the present invention has been described with reference to drawings showing a preferred embodiment thereof, but various changes and modifications could be made to the invention without departing from the scope thereof, as defined by the appended claims. En particulier, il est envisageable de pourvoir le dispositif de la présente invention d'un système de distribution précomprimé et déclenchable par simple action sur un bouton ou un levier. In particular, it is possible to provide the device of the present invention of a pre-compressed delivery system and releasable by simply pressing a button or a lever. Dans ce cas (non représenté), on arme un ressort qui est ensuite libéré par l'actionnement d'un moyen de déclenchement approprié, le ressort agissant alors sur la tige d'actionnement 30 pour expulser la ou les doses. In this case (not shown), one arm a spring which is then released by actuation of a suitable gating means, the spring then acting on the actuating rod 30 to expel or doses. Bien entendu, d'autres variantes sont également envisageables. Of course, other variants are also possible. De plus, la présente invention n'est pas limitée aux bidoses, mais s'applique aussi aux monodoses, et aux dispositifs contenant un nombre limité de doses, par exemple, trois ou quatre. In addition, the present invention is not limited to bidoses, but also applies to single-dose, and devices containing a limited number of doses, e.g., three or four.

Claims (12)

  1. A fluid dispenser device comprising a reservoir (10) containing one or more doses of fluid, a dispensing orifice (20), and a dispensing member (30), said reservoir being of the syringe type (10) having a hollow tube (11) provided with an upstream opening (12) and with a downstream opening (13), said upstream opening (12) being provided with a piston (40) which, at rest, forms a leaktight stopper, and which co-operates with an actuating rod (30) forming the dispensing member, and said downstream opening (13) being provided with an end-piece (50) firstly incorporating closure means (51) for forming a leaktight stopper at rest, and secondly adapted to define a spray profile (55) when the device is actuated, the device being characterized in that said end-piece (50) has a fixing portion (54) fixed in leaktight manner to said downstream opening (13) of the syringe (10) so that the unit formed by the reservoir (10), the piston (40), and the end-piece (50) can be prefilled and closed off in leaktight manner before the device is assembled, said syringe (10) and said end-piece (50) being inserted, during assembly, into an outer body (80) incorporating the dispensing orifice (20) of the device.
  2. A device according to claim 1, in which said end-piece (50) has a deformable closure portion (51) for acting at rest to close off said downstream opening (13) in leaktight manner, and for being deformed when the device is actuated so as to open said downstream opening (13), and a spray portion (56) for forming a spray profile (55) while the fluid is being dispensed.
  3. A device according to claim 2, in which said spray portion (56) of the end-piece co-operates with the end wall (81) of said outer body (80) to define the spray profile (55) when the device is actuated.
  4. A device according to claim 3, in which said end-piece (50) is provided with a central cylindrical stud (52) which, at one end, forms the closure means (51) for closing the downstream opening (13) in the syringe (10), and, at the other end, forms a plane surface (56), said stud (52) being moved axially when the device is actuated, so as firstly to open the downstream opening (13) in the syringe (10), and secondly to press said plane surface (56) against the end wall (81) of the outer body (80) incorporating swirl channels (82) so that said stud (52) defines the spray profile (55) when the device is actuated.
  5. A device according to any preceding claim, in which said end-piece (50) is made in one piece and of an elastomer material.
  6. A device according to any preceding claim, in which said actuating rod (30), which can be moved axially by the user to dispense the fluid, co-operates with an outer body (80) provided with energy storage means (85) for storing up energy in the fingers of the user, thereby guaranteeing that a dose is dispensed in full each time the device is actuated.
  7. A device according to claim 6, in which said body (80) and said actuating rod (30) co-operate to prevent the device from being actuated accidently.
  8. A device according to any preceding claim, in which said syringe (10) contains two doses of fluid, and said outer body (80) forms an abutment in the axial stroke of the actuating rod (30) so as to separate said stroke into two stroke portions, each of which corresponds to a respective one of the doses.
  9. A device according to claim 8, in which, after the first dose has been expelled, said actuating rod (30) must be rotated relative to said outer body (80) so that it is possible to expel the second dose.
  10. A device according to claim 9, in which the outer body (80) has non-return means (86) which co-operate with said rod (30) so as to allow the rod (30) to be rotated in one direction only and to be moved axially in one direction only.
  11. A device according to any one of claims 8 to 10, in which said outer body (80) incorporates a window (89) level with the syringe for viewing the dose to be expelled.
  12. A device according to any one of claims 3 to 6, in which said outer body (80) is made in one piece.
EP20000927352 1999-05-21 2000-05-17 Fluid product dispenser Active EP1185376B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9906496 1999-05-21
FR9906496A FR2793708B1 (en) 1999-05-21 1999-05-21 A fluid dispenser
PCT/FR2000/001321 WO2000071263A1 (en) 1999-05-21 2000-05-17 Fluid product dispenser

Publications (2)

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EP1185376A1 EP1185376A1 (en) 2002-03-13
EP1185376B1 true EP1185376B1 (en) 2003-07-30

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US (1) US6789750B1 (en)
EP (1) EP1185376B1 (en)
DE (1) DE60004218T2 (en)
FR (1) FR2793708B1 (en)
WO (1) WO2000071263A1 (en)

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Publication number Publication date
US6789750B1 (en) 2004-09-14
DE60004218T2 (en) 2004-04-22
DE60004218D1 (en) 2003-09-04
WO2000071263A1 (en) 2000-11-30
EP1185376A1 (en) 2002-03-13
FR2793708B1 (en) 2001-08-03
FR2793708A1 (en) 2000-11-24

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