EP1185376B1 - Fluid product dispenser - Google Patents

Fluid product dispenser Download PDF

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Publication number
EP1185376B1
EP1185376B1 EP00927352A EP00927352A EP1185376B1 EP 1185376 B1 EP1185376 B1 EP 1185376B1 EP 00927352 A EP00927352 A EP 00927352A 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
piece
syringe
outer body
actuated
dose
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.)
Expired - Lifetime
Application number
EP00927352A
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German (de)
French (fr)
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EP1185376A1 (en
Inventor
Frédéric HELDT
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
Valois SAS
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Publication date
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Publication of EP1185376A1 publication Critical patent/EP1185376A1/en
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Anticipated expiration legal-status Critical
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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
    • B05B11/01—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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, 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
    • B05B1/3405—Nozzles, 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
    • B05B1/341—Nozzles, 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
    • B05B1/3421—Nozzles, 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
    • B05B1/3431—Nozzles, 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
    • B05B1/3436—Nozzles, 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, 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
    • B05B1/3405—Nozzles, 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
    • B05B1/341—Nozzles, 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
    • B05B1/3421—Nozzles, 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
    • B05B1/3431—Nozzles, 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
    • B05B1/3452—Nozzles, 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
    • B05B1/3457—Nozzles, 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
    • 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
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/025—Membranes or pistons acting on the contents inside the container, e.g. follower pistons with stepwise advancement of the piston, e.g. for spraying a predetermined quantity of content

Definitions

  • the present invention relates to a device for dispensing a fluid product, and more particularly a device for spraying a fluid with two doses, according to the preamble of claim 1.
  • a device for dispensing a fluid product and more particularly a device for spraying a fluid with two doses, according to the preamble of claim 1.
  • Such a device is known from document EP 0 452 728.
  • bidoses contain only a small amount of product, the manufacturing cost of the dispensing device must obviously be kept as low as possible.
  • the product being able to be a pharmaceutical product, the precision of dosage and the quality of the distribution must be optimal.
  • the ease of use is also a very important criterion in devices with one or two doses.
  • the manufacturer of the product to be distributed is often different from the manufacturer of the distribution device distribution, it is very desirable that the filling of the tank, as well as the tools necessary for this filling are as simple and as inexpensive as possible, and preferably correspond to a standard type filling and tooling known by the manufacturers of fluid product.
  • the present invention aims to provide a product distribution device fluid, in particular a two-dose device, which provides optimal performance in the quality of the distribution as well as the reliability of operation, while being very simple and inexpensive to make and assemble.
  • the bidose of document FR-2 761 281 has nine parts. It is an object of the present invention to provide a bidose-type dispensing device consisting of a lower number of rooms.
  • the present invention also aims to provide a dispensing device of fluid, in particular a bidose, in which the reservoir consists of a standard tank whose filling is well known and therefore simple for the manufacturer of the product to be distributed, without the need for complicated special tools and expensive.
  • the present invention also aims to provide a dispensing device of fluid, in particular a bidose, which simultaneously guarantees perfect tightness of the product contained in the tank and perfect spraying of each dose of product each time the device is actuated.
  • the present invention also aims to provide a device for distributing fluid product, in particular a bidose, in which the total distribution of the dose is guaranteed on each actuation and for which any accidental actuation or not desired is impossible.
  • the present invention therefore relates to a product distribution device fluid according to claim 1.
  • said tip comprises a shutter part deformable for sealingly closing said downstream opening at rest and deform during actuation of the device to open said downstream opening, and a spray part to form a spray profile when dispensing product.
  • said spray part of the end piece cooperates with the bottom wall of said external body to define the profile of spray when actuating the device.
  • said tip comprises a central cylindrical stud forming on one side the shutter of the downstream opening of the syringe, and on the other side, a surface flat, said pad being moved axially when the device is actuated for a on the one hand open the downstream opening of the syringe and on the other hand press the said flat surface against the bottom wall of the outer body incorporating swirl channels of such that said pad defines the spray profile during actuation.
  • said end piece is made in one piece in one elastomeric material
  • said actuating rod axially movable by the user to distribute the product, cooperates with an external body provided with means of energy accumulation to create an energy accumulation in the fingers of the user guaranteeing the distribution of the entire dose at each actuation.
  • said body and said actuating rod cooperate to prevent accidental actuation of the device.
  • said syringe comprises two doses of product, and said body external forms a stop in the axial stroke of the actuating rod, to separate this in two partial strokes corresponding to each of the doses.
  • said rod actuation after the expulsion of the first dose, said rod actuation must be rotated relative to said external body to ability to expel second dose.
  • the external body comprises cooperating non-return means with said rod so as not to allow rotation and / or axial displacement of the rod respectively only in one direction.
  • said external body incorporates a window at the level of the syringe to view the dose to be expelled.
  • said external body is made in one piece.
  • the fluid dispenser of the The present invention advantageously comprises only five parts. It is a reservoir 10, advantageously produced in the form of a syringe body comprising a hollow body 11 provided with an upstream opening 12 and a downstream opening 13.
  • the upstream opening 13 is sealed off by a plug 40 adapted to form the delivery piston when actuated via a rod actuator 30, while the downstream opening 13 is sealed in a sealed manner by a tip 50.
  • the assembly formed by the syringe 10, the tip 50, the plug piston 40 and the actuating rod 30 is then fixed in an external body 80.
  • the external body 80 incorporates the orifice of distribution 20 and is adapted to cooperate with the actuating rod 30 to ensure a correct actuation of the device.
  • the external body 80 includes a window 89 at the level of the reservoir 10 for viewing the contents of said exterior from the outside tank. This characteristic is particularly advantageous in the case of a bidose because it allows to know if the first dose was distributed or not.
  • the reservoir 10 is, as mentioned previously, preferably formed by a syringe body. This greatly facilitates the filling of the tank, since the filling syringes is well known and widely mastered by the manufacturers of fluid product. In this way, the syringe 10 is pre-filled and then its two openings upstream and downstream 12 and 13 are plugged by means of the piston plug 40 on the one hand and the end piece 50 on the other hand, so that the unit formed by the reservoir 10 and the two caps 40 and 50 can be pre-filled before the final assembly of the the invention. It is therefore not necessary to provide the manufacturer with a fluid product special tools to assemble a complicated device simultaneously with filling, or to fill an already assembled device
  • the end piece 50 advantageously simultaneously provides three functions. On the one hand, it hermetically seals the downstream opening 13 of the syringe 10. On the other hand, it provides precompression during distribution. Finally, it includes means adapted to form a spray profile at the dispensing orifice 20 of the device for, upon actuation of the device, distribute so finely sprayed, the dose of product.
  • This tip preferably made in one part made of an elastomeric material, is more precisely represented in FIGS. 6 to 9. It advantageously comprises a fixing part 54 for fixing on said opening 13 of the syringe 10, advantageously by snap-fastening.
  • the tip 50 has other share a deformable shutter part 51 acting as a shutter at rest in sealing the syringe, said closure portion 51 being adapted to deform during actuation of the device, in particular under the effect of the pressure of the product, to open the downstream opening 13 of the reservoir and allow the expulsion of a dose of product.
  • said shutter 51 is produced in the form of a stud 52 which fits tightly into a reduced diameter part of the outlet of the syringe 10, and which under the effect of the pressure of the product moves towards a part of larger diameter of said syringe outlet thus freeing the passage for the product.
  • the end piece 50 also advantageously comprises a part spray 56 adapted to form a spray profile 55 during dispensing of the product.
  • This spraying part 56 is advantageously produced in the form with a flat surface and can in particular be produced on the opposite side of the stud 52 forming the shutter 51.
  • the lower part of the stud 52 forming the shutter 51 closes the syringe 10 while the upper part of the stud forming the spraying part 56 is arranged away from the end wall or bottom wall 81 of the member 80.
  • this bottom wall 81 of the external member 80 incorporates spray channels or other suitable spray profiles, and when the pad 52 is deformed or moved to open the shutter part 51, as shown in the FIG.
  • the spray profile 55 is therefore formed by the cooperation of the tip 50 and the external member 80.
  • the wall bottom 81 of the external member 80 can then be planar and form the bottom of said profile.
  • the device includes means for accumulating energy in the user's hand, preferably made between the external body 80 and the actuating rod 30.
  • these energy storage means can be produced by small studs or pins 85 formed in the internal surface of the external 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 force predetermined is necessary to pass over these pins, so that the user stores energy in his fingers until he reaches this force, the energy being then suddenly released, guaranteeing the total distribution of the dose.
  • These pins also act advantageously to prevent unwanted actuation of the device.
  • the member outer 80 has two grooves in which the radial ends extend and said plate 35, thus preventing rotation of the actuating rod during actuation thereof.
  • the external member 80 has two grooves which are offset on the periphery of the external member, so that to expel the second dose, it is necessary to rotate the actuating rod 30 to present the actuating plate 35 facing the second groove.
  • similar energy storage means 85 are advantageously provided to guarantee the total expulsion of the second dose.
  • the device also advantageously includes non-return means which act both on the axial displacement of the rod 30 and on the rotation movement of it.
  • ramps 86 which allow the passage of the actuating plate 35 in one direction but prevents its movement In the opposite way.
  • means may be provided to prevent actuation of the device and requiring a rotation prior to the rod actuation 30 before the first dose can be expelled.
  • the present invention therefore provides a device for dispensing a fluid product, advantageously a bidose, which consists of only five pieces and which provides simultaneously all of the following functions: shutting off the tank outlet at rest and between the two doses; precompression when each dose is expelled; spraying of each dose by creating a spray profile at the time of distribution; accumulation of energy in the user's hand before each dose expulsion; transport security to prevent accidental activation; anti-return function after the first dose preventing the actuating rod from returning in its starting position; creation of an autonomous assembly consisting of the syringe, of the piston plug and the obturator end allowing a separate and easy filling of said syringe and providing a device in which the product is in contact only with two materials, namely the material of the syringe, generally glass, and that of the two plugs, generally an inert elastomeric material.
  • the present invention has been described with reference to the drawings which represent a preferred embodiment thereof, but various variations and modifications could be made to the invention without departing from the scope thereof, as defined by the appended claims.
  • a spring is armed which is then released by the actuation of a means of appropriate triggering, the spring then acting on the actuating rod 30 to expel the dose (s).
  • the present invention is not limited to bidoses, but also applies to monodoses, and devices containing a limited number of doses, for example, three or four.

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 device for dispensing a fluid product, and more particularly a device for spraying a fluid with two doses, according to the preamble of claim 1. Such a device is known from document EP 0 452 728.

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.Single-dose or two-dose devices are well known in the state of the art, and a bidose is notably disclosed in document FR-2,761,281.

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. Toutefois, le produit pouvant être un produit pharmaceutique, la précision de dosage et la qualité de la distribution doivent être optimales. De plus, la simplicité d'utilisation est également un critère très important dans les dispositifs à une ou deux 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.Since bidoses contain only a small amount of product, the manufacturing cost of the dispensing device must obviously be kept as low as possible. However, the product being able to be a pharmaceutical product, the precision of dosage and the quality of the distribution must be optimal. In addition, the ease of use is also a very important criterion in devices with one or two doses. In addition, the manufacturer of the product to be distributed is often different from the manufacturer of the distribution device distribution, it is very desirable that the filling of the tank, as well as the tools necessary for this filling are as simple and as inexpensive as possible, and preferably correspond to a standard type filling and tooling known by the manufacturers of fluid product.

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. En particulier, le bidose du document FR- 2 761 281 comporte neuf pièces. C'est un but de la présente invention de fournir un dispositif de distribution de type bidose constitué d'un nombre inférieur de pièces.The present invention aims to provide a product distribution device fluid, in particular a two-dose device, which provides optimal performance in the quality of the distribution as well as the reliability of operation, while being very simple and inexpensive to make and assemble. In particular, the bidose of document FR-2 761 281 has nine parts. It is an object of the present invention to provide a bidose-type dispensing device consisting of a lower number of rooms.

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 device for distribution of fluid, in particular a bidose, in which 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 dispensing device of fluid, in particular a bidose, in which the reservoir consists of a standard tank whose filling is well known and therefore simple for the manufacturer of the product to be distributed, without the need for complicated special tools and expensive.

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 dispensing device of fluid, in particular a bidose, which simultaneously guarantees perfect tightness of the product contained in the tank and perfect spraying of each dose of product each time the device is actuated.

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 also aims to provide a device for distributing fluid product, in particular a bidose, in which the total distribution of the dose is guaranteed on each actuation and for which any accidental 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 therefore relates to a product distribution device fluid 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 tip comprises a shutter part deformable for sealingly closing said downstream opening at rest and deform during actuation of the device to open said downstream opening, and a spray part to form a spray profile when dispensing product.

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 part of the end piece cooperates with the bottom wall of said external body to define the profile of spray when actuating the device.

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 tip comprises a central cylindrical stud forming on one side the shutter of the downstream opening of the syringe, and on the other side, a surface flat, said pad being moved axially when the device is actuated for a on the one hand open the downstream opening of the syringe and on the other hand press the said flat surface against the bottom wall of the outer body incorporating swirl channels of such that said pad defines the spray profile during actuation.

De préférence, dans lequel ledit embout est réalisé d'une seule pièce en un matériau élastomèrePreferably, in which said end piece is made in one piece in one 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 rod, axially movable by the user to distribute the product, cooperates with an external body provided with means of energy accumulation to create an energy accumulation in the fingers of the user guaranteeing the 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 cooperate 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 comprises two doses of product, and said body external forms a stop in the axial stroke of the actuating rod, to separate this in two partial strokes corresponding to each of the doses.

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 rod actuation must be rotated relative to said external body to ability to expel 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 external body comprises cooperating non-return means with said rod so as not to allow rotation and / or axial displacement of the rod 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 external body incorporates a window at the level of the syringe to view the dose to be expelled.

De préférence, ledit corps externe est réalisé en une seule pièce.Preferably, said external body is made in 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 :

  • la figure 1 est une vue schématique explosée du dispositif de distribution selon un mode de réalisation préféré de la présente invention,
  • la figure 2 est une vue schématique de côté montrant partiellement le dispositif de distribution de l'invention,
  • la figure 3 est une vue en perspective du dispositif de distribution selon l'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,
  • 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,
  • 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
  • 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.
Other advantages and characteristics of the present invention will become apparent during the following detailed description thereof, given by way of nonlimiting example with reference to the accompanying drawings, in which:
  • FIG. 1 is an exploded schematic view of the dispensing device according to a preferred embodiment of the present invention,
  • FIG. 2 is a schematic side view partially showing the dispensing device of the invention,
  • FIG. 3 is a perspective view of the dispensing device according to the invention,
  • FIGS. 4 and 5 are two schematic views in cross section of the device according to the present invention, respectively from a different angle of view,
  • FIG. 6 is a schematic cross-sectional view of the upper part of the reservoir incorporating the nozzle, produced according to an embodiment of the present invention, before assembly of the dispensing device in the external body,
  • FIG. 7 is a diagrammatic view in cross section similar to that of FIG. 6, after assembly of the reservoir and of the nozzle in the external body, and
  • Figures 8 and 9 are schematic cross-sectional views of the upper part of the fluid dispenser device according to a preferred embodiment of the present invention, respectively in rest position and in expulsion position.

En référence à la figure 1, le dispositif de distribution de produit fluide de la présente invention comporte avantageusement seulement cinq pièces. 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.Referring to Figure 1, the fluid dispenser of the The present invention advantageously comprises only five parts. It is a reservoir 10, advantageously produced in the form of a syringe body comprising a hollow body 11 provided with an upstream opening 12 and a downstream opening 13. The upstream opening 13 is sealed off by a plug 40 adapted to form the delivery piston when actuated via a rod actuator 30, while the downstream opening 13 is sealed in a sealed manner by a tip 50. The assembly formed by the syringe 10, the tip 50, the plug piston 40 and the actuating rod 30 is then fixed in an external 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. Avantageusement, le corps externe 80 comporte une fenêtre 89 au niveau du réservoir 10 pour visualiser de l'extérieur le contenu dudit réservoir. 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.The external body 80, preferably made in one piece, incorporates the orifice of distribution 20 and is adapted to cooperate with the actuating rod 30 to ensure a correct actuation of the device. Advantageously, the external body 80 includes a window 89 at the level of the reservoir 10 for viewing the contents of said exterior from the outside tank. This characteristic is particularly advantageous in the case of a bidose because it allows to know if the first dose was distributed or not.

Le réservoir 10 est, comme mentionné précédemment, de préférence formé par un corps de seringue. 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. 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. 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 assembléThe reservoir 10 is, as mentioned previously, preferably formed by a syringe body. This greatly facilitates the filling of the tank, since the filling syringes is well known and widely mastered by the manufacturers of fluid product. In this way, the syringe 10 is pre-filled and then its two openings upstream and downstream 12 and 13 are plugged by means of the piston plug 40 on the one hand and the end piece 50 on the other hand, so that the unit formed by the reservoir 10 and the two caps 40 and 50 can be pre-filled before the final assembly of the the invention. It is therefore not necessary to provide the manufacturer with a fluid product special tools to assemble a complicated device simultaneously with filling, or to fill an already assembled device

Selon l'invention, l'embout 50 procure avantageusement simultanément trois fonctions. 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. 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. 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. 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. 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.According to the invention, the end piece 50 advantageously simultaneously provides three functions. On the one hand, it hermetically seals the downstream opening 13 of the syringe 10. On the other hand, it provides precompression during distribution. Finally, it includes means adapted to form a spray profile at the dispensing orifice 20 of the device for, upon actuation of the device, distribute so finely sprayed, the dose of product. This tip, preferably made in one part made of an elastomeric material, is more precisely represented in FIGS. 6 to 9. It advantageously comprises a fixing part 54 for fixing on said opening 13 of the syringe 10, advantageously by snap-fastening. The tip 50 has other share a deformable shutter part 51 acting as a shutter at rest in sealing the syringe, said closure portion 51 being adapted to deform during actuation of the device, in particular under the effect of the pressure of the product, to open the downstream opening 13 of the reservoir and allow the expulsion of a dose of product. Advantageously, said shutter 51 is produced in the form of a stud 52 which fits tightly into a reduced diameter part of the outlet of the syringe 10, and which under the effect of the pressure of the product moves towards a part of larger diameter of said syringe outlet thus freeing 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. 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. 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.According to the invention, the end piece 50 also advantageously comprises a part spray 56 adapted to form a spray profile 55 during dispensing of the product. This spraying part 56 is advantageously produced in the form with a flat surface and can in particular be produced on the opposite side of the stud 52 forming the shutter 51. As is better visible with reference to FIG. 8, in rest position, the lower part of the stud 52 forming the shutter 51 closes the syringe 10 while the upper part of the stud forming the spraying part 56 is arranged away from the end wall or bottom wall 81 of the member 80. Preferably, this bottom wall 81 of the external member 80 incorporates spray channels or other suitable spray profiles, and when the pad 52 is deformed or moved to open the shutter part 51, as shown in the FIG. 9, its flat surface 56 is pressed against said spray profile 82, thus forming the bottom of this profile and ensuring a finely sprayed distribution of the product. In this preferred embodiment, the spray profile 55 is therefore formed by the cooperation of the tip 50 and the external member 80. Of course, it would be also possible to realize the spray profile in the nozzle 50, the wall bottom 81 of the external 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 piece, namely the end piece 50, the obturation is obtained. waterproof the tank at rest, spraying the dose of product during actuation, and a certain precompression related to the resistance of the pad 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. Ces ergots agissent aussi avantageusement pour empêcher un actionnement non souhaité du dispositif. 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. 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. De nouveau, des moyens d'accumulation d'énergie similaires 85 sont avantageusement prévus pour garantir l'expulsion totale de la seconde 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. 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. 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. 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. En particulier, après distribution de la première dose, une rotation est nécessaire pour pouvoir expulser la seconde dose.To further guarantee the total expulsion of each dose, the device includes means for accumulating energy in the user's hand, preferably made between the external body 80 and the actuating rod 30. As shown in the drawings, these energy storage means can be produced by small studs or pins 85 formed in the internal surface of the external 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 force predetermined is necessary to pass over these pins, so that the user stores energy in his fingers until he reaches this force, the energy being then suddenly released, guaranteeing the total distribution of the dose. These pins also act advantageously to prevent unwanted actuation of the device. Advantageously, as can be seen in particular in FIGS. 2 and 3, the member outer 80 has two grooves in which the radial ends extend and said plate 35, thus preventing rotation of the actuating rod during actuation thereof. When the device is a bidose, the external member 80 has two grooves which are offset on the periphery of the external member, so that to expel the second dose, it is necessary to rotate the actuating rod 30 to present the actuating plate 35 facing the second groove. Again, similar energy storage means 85 are advantageously provided to guarantee the total expulsion of the second dose. Else apart, the device also advantageously includes non-return means which act both on the axial displacement of the rod 30 and on the rotation movement of it. 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 way. Optionally, means may be provided to prevent actuation of the device and requiring a rotation prior to the rod actuation 30 before the first dose can be expelled. With reference to the figures 2 and 3, which represent a bidose, it is visible that the two offset grooves of the body external forms the stop which splits the actuating stroke in two ensuring the distribution of the contents of the tank in two doses. In particular, after distribution of the first dose, a rotation is necessary to be able 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 ; précompression lors de l'expulsion de chaque dose ; pulvérisation de chaque dose par création d'un profil de pulvérisation au moment de la distribution ; accumulation d'énergie dans la main de l'utilisateur avant chaque expulsion de dose ; sécurité de transport pour empêcher l'actionnement accidentel ; fonction anti-retour après la première dose empêchant la tige d'actionnement de revenir dans sa position de départ ; 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.The present invention therefore provides a device for dispensing a fluid product, advantageously a bidose, which consists of only five pieces and which provides simultaneously all of the following functions: shutting off the tank outlet at rest and between the two doses; precompression when each dose is expelled; spraying of each dose by creating a spray profile at the time of distribution; accumulation of energy in the user's hand before each dose expulsion; transport security to prevent accidental activation; anti-return function after the first dose preventing the actuating rod from returning in its starting position; creation of an autonomous assembly consisting of the syringe, of the piston plug and the obturator end allowing a separate and easy filling of said syringe and providing a device in which the product is in contact only with two materials, namely the material of the syringe, generally glass, and that of the two plugs, generally 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. 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. 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. Bien entendu, d'autres variantes sont également envisageables. 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.Of course, the present invention has been described with reference to the drawings which represent a preferred embodiment thereof, but various variations and modifications could be made to the invention without departing from the scope thereof, as defined by the appended claims. In particular, it is conceivable to providing the device of the present invention with a precompressed delivery system and triggered by simple action on a button or lever. In this case (no shown), a spring is armed which is then released by the actuation of a means of appropriate triggering, the spring then acting on the actuating rod 30 to expel the dose (s). Of course, other variants are also possible. In addition, the present invention is not limited to bidoses, but also applies to monodoses, and devices containing a limited number of doses, for example, 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.
EP00927352A 1999-05-21 2000-05-17 Fluid product dispenser Expired - Lifetime EP1185376B1 (en)

Applications Claiming Priority (3)

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FR9906496 1999-05-21
FR9906496A FR2793708B1 (en) 1999-05-21 1999-05-21 FLUID PRODUCT DISPENSING DEVICE
PCT/FR2000/001321 WO2000071263A1 (en) 1999-05-21 2000-05-17 Fluid product dispenser

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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)
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DE (1) DE60004218T2 (en)
FR (1) FR2793708B1 (en)
WO (1) WO2000071263A1 (en)

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FR2761281B1 (en) 1997-03-26 1999-05-21 Valois Sa DEVICE FOR SPRAYING A FLUID PRODUCT, SUCH AS A BIDOSE

Also Published As

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

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