EP1697670B1 - Fluid product spray head and distributing pump comprising this spray head - Google Patents

Fluid product spray head and distributing pump comprising this spray head Download PDF

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Publication number
EP1697670B1
EP1697670B1 EP04805812A EP04805812A EP1697670B1 EP 1697670 B1 EP1697670 B1 EP 1697670B1 EP 04805812 A EP04805812 A EP 04805812A EP 04805812 A EP04805812 A EP 04805812A EP 1697670 B1 EP1697670 B1 EP 1697670B1
Authority
EP
European Patent Office
Prior art keywords
spray
pump
head
spray orifice
profile
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 - Fee Related
Application number
EP04805812A
Other languages
German (de)
French (fr)
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EP1697670A1 (en
Inventor
Wilfrid Beaujour
François LE MANER
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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Filing date
Publication date
Application filed by Valois SAS filed Critical Valois SAS
Publication of EP1697670A1 publication Critical patent/EP1697670A1/en
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Publication of EP1697670B1 publication Critical patent/EP1697670B1/en
Expired - Fee Related legal-status Critical Current
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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • 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
    • B05B1/3468—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 means for controlling the flow of liquid entering or leaving the swirl chamber
    • B05B1/3473—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 means for controlling the flow of liquid entering or leaving the swirl chamber 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
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/12—Flexible outlets

Definitions

  • the present invention relates to a fluid spray head, a dispensing pump comprising such a head and a fluid dispenser comprising such a pump.
  • Fluid dispensing pumps are well known in the state of the art, in particular for dispensing products in the fields of cosmetics, perfumery or pharmacy. They generally comprise a pump body in which a piston slides to dispense a dose of fluid product with each actuation.
  • the pumps sometimes include shutters provided at the dispensing orifice. These shutters are intended in particular to prevent contamination of the fluid between two actuations of the pump, and are therefore biased to rest towards their closed position. The presence of such a shutter causes constraints with respect to the spraying of the product.
  • a spray profile is generally disposed upstream of the spray orifice, this spray profile generally comprising a swirl chamber connected to the spray orifice during dispensing of the product, and at least one non-radial channel which is connected to said swirl chamber.
  • a shutter complicates the production of the spray profile and especially makes the performance or characteristics of the spray unstable according to the position of said shutter.
  • US 3,990,640 discloses a fluid spray head according to the preamble of claim 1.
  • the present invention aims to provide a fluid spray head that does not reproduce the aforementioned drawbacks.
  • the present invention also aims to provide a head and a fluid dispensing pump which ensure the dispensing of the finely pulverized form of the product at each actuation of the pump.
  • Another object of the present invention is to provide a fluid dispenser head and pump which is simple and inexpensive to manufacture and assemble and safe and reliable to use.
  • the present invention therefore relates to a fluid spray head as described in claim 1.
  • the swirl chamber is of zero volume in the shutter obturating position, the displacement and / or the deformation of said shutter towards its open position forming said swirl chamber in upstream of said spray orifice and downstream of said at least one non-radial channel.
  • the swirl chamber is of non-zero volume in the closed position of said shutter, the latter passing through said swirl chamber to close off said spray orifice.
  • the spray profile comprises two non-radial channels arranged symmetrically with respect to the central axis of the pump.
  • said axial sleeve is integrally formed in the bottom of said spray head.
  • the present invention also relates to a fluid dispenser pump comprising a spray head as described above.
  • said pump comprises a pump chamber defining the dose of the product expelled at each actuation, disposed immediately upstream of said spray orifice, said shutter sliding in said pump chamber.
  • the present invention also relates to a fluid dispenser device comprising a reservoir and a pump as described above.
  • the fluid dispenser device comprises a reservoir 60 and a pump mounted on said reservoir by means of a fixing ring 15, with interposition of a seal 65.
  • the pump comprises a pump body 10 defining a pump or metering chamber 20 containing the product to be dispensed with each actuation of the pump, and in which slides a first piston 72.
  • a dispensing head 40 is mounted on the fixing ring. 15, and the pump chamber 20 is advantageously formed in said head.
  • the pump chamber further comprises an inlet valve 70, and a shutter 38 is provided upstream of the dispensing orifice 45 and cooperating directly therewith between a closed position and a dispensing position.
  • the pump body 10 is advantageously made in one piece with said shutter 38, being formed inside thereof, and the first piston 72 may advantageously be made of a one-piece piece with the fixing ring 15 and the seat 71 of the inlet valve 70.
  • a spring 50 preferably single and preferably out of contact with the fluid, is disposed in the pump to return the first piston 72 to its rest position and the shutter 38 to its closed position after each actuation of the pump.
  • a dip tube 18 is connected to said pump to extend towards the bottom of the tank to distribute all the product contained therein.
  • a spraying profile 100 is provided at the dispensing orifice 45 for spraying the expelled product with each actuation of the pump.
  • the Figures 2 to 4 represent a first embodiment variant.
  • the end of the spray head 40 which incorporates the spray orifice 45 is narrowed and forms a sleeve 150 in which slides axially shutter 38.
  • This shutter 38 can advantageously be made in one piece with a second piston 34 as visible on the figure 1 .
  • the sleeve 150 is preferably made in one piece in the bottom of the spray head 40 and incorporates the spray profile 100.
  • This spray profile 100 comprises a swirl chamber 101, which is arranged directly upstream of the orifice 45 and which is connected thereto in the dispensing position.
  • the spraying profile 100 also comprises at least one non-radial channel 110, preferably two symmetrically arranged relative to one another about the central axis X of the pump.
  • any number of channels 110 is possible. These non-radial channels 110 are connected to the swirl chamber 101 when the product is expelled. As visible on Figures 2 to 4 , the non-radial channels are advantageously made at least partially in the side wall of the sleeve 150, preferably over its entire height. This makes it possible to achieve very simply said spray profile without having to add elements at said head.
  • the swirl chamber 101 is of non-zero volume in the closed position represented on the Figures 3 and 4 and said shutter 38 actually moves axially within said swirl chamber 101.
  • the non-radial channels 110 form a portion of the pump chamber 20 and the shutter 38, which forms the outlet valve of the chamber pump 20, when it opens the spray distribution of the product contained in the pump chamber 20 through the spray orifice 45.
  • FIGS. 5 and 6 show an alternative embodiment, wherein the axial sleeve 150 is also integrally formed in the bottom of the head 40, but projecting from said bottom.
  • the shutter 38 is made slightly differently, including in particular the shutter element itself which is central and which cooperates directly with the spray orifice 45 but also a peripheral lip surrounding said shutter member and sliding in said axial sleeve 150.
  • the non-radial channels 110 also extend over substantially the entire height of the sleeve axial, with the exception of the upper end portion closed by said shutter 38 in the closed position.
  • the swirl chamber 101 is of substantially zero volume in the closed position and it is during the displacement of the shutter 38 towards its open position that the swirl chamber is created by being connected to the non-radial channels 110 for spraying the product.
  • FIGS. 7 and 8 show an alternative embodiment, in which the shutter 38 fit on the sleeve 150 to limit the dead volume in the closed position.
  • said at least one non-radial channel 110 is oblique in the side wall of the sleeve 150 to bring the product into the swirl chamber 101.
  • Figures 9a and 10b represent yet another alternative embodiment, wherein the sleeve 150 is slotted over substantially its entire height, each slot forming a non-radial channel 110.
  • the horizontal sectional views of Figures 9b and 10b show how the shutter fills the dead volume in the closed position and on the contrary opens the spray orifice 45 and the non-radial channels 110 in the spray position.
  • the implementation of the invention which advantageously provides for producing the spray channels over approximately the entire height of an axial sleeve formed in the bottom of the head, is advantageous in that it simplifies the manufacture of this profile. spraying at an end portion of the spray head 40 which is traditionally relatively brittle due to the low wall thicknesses existing at these locations.
  • the present invention makes it possible in particular to avoid having to provide channels at the bottom wall of said axial sleeve 150 which comprises the spray orifice 45. On the contrary, the whole of this bottom surface of the axial sleeve 150 forms the swirl chamber 101 when the shutter is in the open position, as shown in FIG. figure 6 .

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

A fluid product spray head (40) comprises a spray orifice (45) and a spray profile (100) upstream from this spray orifice (45). Said spray profile has a swirling chamber (101) connected, during the spraying of the product, to the spray orifice (45) and to at least one non-radial channel (110) connected to the swirling chamber (101). The spray profile (100) is provided in the bottom of the spray head (40). A obturator (38) interacts with the spray orifice (45) while being able to be displaced and/or deformed between a closing position of the spray orifice (45) and an open position of the spray orifice (45). The inventive spray head (40) has an axially hollow sleeve (150) that accommodates the spray profile (100), and said obturator (38) axially displaces and/or deforms at least partially in said sleeve (150).

Description

La présente invention concerne une tête de pulvérisation de produit fluide, une pompe de distribution comportant une telle tête et un distributeur de produit fluide comportant une telle pompe.The present invention relates to a fluid spray head, a dispensing pump comprising such a head and a fluid dispenser comprising such a pump.

Les pompes de distribution de produit fluide sont bien connues dans l'état de la technique, notamment pour distribuer des produits dans les domaines de la cosmétique, de la parfumerie ou de la pharmacie. Elles comportent généralement un corps de pompe dans lequel coulisse un piston pour distribuer une dose de produit fluide à chaque actionnement. Notamment avec des produits pharmaceutiques, les pompes comportent parfois des obturateurs prévus au niveau de l'orifice de distribution. Ces obturateurs sont notamment destinés à éviter une contamination du produit fluide entre deux actionnements de la pompe, et sont donc sollicités au repos vers leur position d'obturation. La présence d'un tel obturateur provoque des contraintes en ce qui concerne la pulvérisation du produit. En effet, lorsque la pompe est destinée à réaliser un spray, un profil de pulvérisation est généralement disposé en amont de l'orifice de pulvérisation, ce profil de pulvérisation comportant généralement une chambre de tourbillonnement reliée à l'orifice de pulvérisation lors de la distribution du produit, et au moins un canal non radial qui est relié à ladite chambre de tourbillonnement. La présence d'un obturateur complique la réalisation du profil de pulvérisation et surtout rend instables les performances ou les caractéristiques du spray selon la position dudit obturateur.Fluid dispensing pumps are well known in the state of the art, in particular for dispensing products in the fields of cosmetics, perfumery or pharmacy. They generally comprise a pump body in which a piston slides to dispense a dose of fluid product with each actuation. In particular with pharmaceutical products, the pumps sometimes include shutters provided at the dispensing orifice. These shutters are intended in particular to prevent contamination of the fluid between two actuations of the pump, and are therefore biased to rest towards their closed position. The presence of such a shutter causes constraints with respect to the spraying of the product. Indeed, when the pump is intended to produce a spray, a spray profile is generally disposed upstream of the spray orifice, this spray profile generally comprising a swirl chamber connected to the spray orifice during dispensing of the product, and at least one non-radial channel which is connected to said swirl chamber. The presence of a shutter complicates the production of the spray profile and especially makes the performance or characteristics of the spray unstable according to the position of said shutter.

US 3 990 640 décrit une tête de pulvérisation de produit fluide selon le préambule de la revendication 1. US 3,990,640 discloses a fluid spray head according to the preamble of claim 1.

La présente invention a pour but de fournir une tête de pulvérisation de produit fluide qui ne reproduit pas les inconvénients susmentionnés.The present invention aims to provide a fluid spray head that does not reproduce the aforementioned drawbacks.

La présente invention a aussi pour but de fournir une tête et une pompe de distribution de produit fluide qui garantissent la distribution du produit sous forme finement pulvérisée à chaque actionnement de la pompe.The present invention also aims to provide a head and a fluid dispensing pump which ensure the dispensing of the finely pulverized form of the product at each actuation of the pump.

La présente invention a encore pour but de fournir une tête et une pompe de distribution de produit fluide qui soient simples et peu coûteuses à fabriquer et à assembler et sûre et fiable d'utilisation.Another object of the present invention is to provide a fluid dispenser head and pump which is simple and inexpensive to manufacture and assemble and safe and reliable to use.

La présente invention a donc pour objet une tête de pulvérisation de produit fluide comme décrit dans la revendication 1.The present invention therefore relates to a fluid spray head as described in claim 1.

Selon une première variante de réalisation de l'invention, la chambre de tourbillonnement est de volume nul en position d'obturation de l'obturateur, le déplacement et/ou la déformation dudit obturateur vers sa position d'ouverture formant ladite chambre de tourbillonnement en amont dudit orifice de pulvérisation et en aval dudit au moins un canal non radial.According to a first variant embodiment of the invention, the swirl chamber is of zero volume in the shutter obturating position, the displacement and / or the deformation of said shutter towards its open position forming said swirl chamber in upstream of said spray orifice and downstream of said at least one non-radial channel.

Selon une seconde variante de réalisation, la chambre de tourbillonnement est de volume non nul en position d'obturation dudit obturateur, celui-ci traversant ladite chambre de tourbillonnement pour obturer ledit orifice de pulvérisation.According to a second variant embodiment, the swirl chamber is of non-zero volume in the closed position of said shutter, the latter passing through said swirl chamber to close off said spray orifice.

Avantageusement, le profil de pulvérisation comporte deux canaux non radiaux disposés symétriquement par rapport à l'axe central de la pompe.Advantageously, the spray profile comprises two non-radial channels arranged symmetrically with respect to the central axis of the pump.

Avantageusement, ledit manchon axial est formé de manière monobloc dans le fond de ladite tête de pulvérisation.Advantageously, said axial sleeve is integrally formed in the bottom of said spray head.

La présente invention a également pour objet une pompe de distribution de produit fluide comportant une tête de pulvérisation telle que décrite ci-dessus.The present invention also relates to a fluid dispenser pump comprising a spray head as described above.

Avantageusement, ladite pompe comporte une chambre de pompe définissant la dose du produit expulsée à chaque actionnement, disposée immédiatement en amont dudit orifice de pulvérisation, ledit obturateur coulissant dans ladite chambre de pompe.Advantageously, said pump comprises a pump chamber defining the dose of the product expelled at each actuation, disposed immediately upstream of said spray orifice, said shutter sliding in said pump chamber.

La présente invention a aussi pour objet un dispositif de distribution de produit fluide comportant un réservoir et une pompe telle que décrite ci-dessus.The present invention also relates to a fluid dispenser device comprising a reservoir and a pump as described above.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement au cours de la description détaillée suivante de deux modes de réalisation de celle-ci, faite en référence aux dessins joints, donnés à titre d'exemples non limitatifs, et sur lesquels :

  • la figure 1 est une vue schématique en section transversale d'un dispositif de distribution de produit fluide comportant une pompe de distribution de produit fluide selon un mode de réalisation qui ne comporte pas toutes les caractéristiques de la revendication 1, en position de repos de la pompe ;
  • la figure 2 est une vue schématique en section horizontale à travers la tête de pulvérisation représentée sur la figure 1 ;
  • les figures 3 et 4 sont des vues schématiques en section transversale d'une partie de la tête de pulvérisation représentée sur la figure 1, prise selon les lignes de coupe C-C et D-D respectivement de la figure 2 ;
  • la figure 5 est une vue schématique similaire à celle de la figure 3, montrant une variante de réalisation;
  • la figure 6 est une vue similaire à celle de la figure 5, en position de pulvérisation ;
  • les figures 7 et 8 sont des vues similaires à celles des figures 5 et 6 respectivement, montrant une variante de réalisation de l'invention ;
  • les figures 9a et 10a sont des vues similaires à celles des figures 7 et 8 respectivement, montrant une autre variante de réalisation; et
  • les figures 9b et 10b sont des vues en coupe selon les lignes E-E des figures 9a et 10a respectivement.
Other characteristics and advantages of the present invention will emerge more clearly in the following detailed description of two embodiments thereof, made with reference to the accompanying drawings, given by way of non-limiting examples, and in which:
  • the figure 1 is a schematic cross-sectional view of a fluid dispenser device having a fluid dispenser pump according to an embodiment which does not have all the features of claim 1, in the pump rest position;
  • the figure 2 is a schematic view in horizontal section through the spray head shown on the figure 1 ;
  • the Figures 3 and 4 are schematic cross-sectional views of a portion of the spray head shown on the figure 1 , taken along the lines of section CC and DD respectively of the figure 2 ;
  • the figure 5 is a schematic view similar to that of the figure 3 , showing an alternative embodiment;
  • the figure 6 is a view similar to that of the figure 5 in the spray position;
  • the Figures 7 and 8 are views similar to those of Figures 5 and 6 respectively, showing an alternative embodiment of the invention;
  • the Figures 9a and 10a are views similar to those of Figures 7 and 8 respectively, showing another alternative embodiment; and
  • the Figures 9b and 10b are sectional views along the EE lines of the Figures 9a and 10a respectively.

L'invention va être décrite en référence à une pompe particulière, mais il est entendu qu'elle s'applique à tous type de pompe ou de valve.The invention will be described with reference to a particular pump, but it is understood that it applies to all types of pump or valve.

En référence à la figure 1, le dispositif de distribution de produit fluide comporte un réservoir 60 et une pompe montée sur ledit réservoir au moyen d'une bague de fixation 15, avec interposition d'un joint 65. Ces éléments peuvent être quelconques et la figure 1 ne montre qu'un exemple de réalisation particulier. La pompe comporte un corps de pompe 10 définissant une chambre de pompe ou de dosage 20 contenant le produit à distribuer à chaque actionnement de la pompe, et dans laquelle coulisse un premier piston 72. Une tête de distribution 40 est montée sur la bague de fixation 15, et la chambre de pompe 20 est avantageusement formée dans ladite tête. La chambre de pompe comporte en outre un clapet d'entrée 70, et un obturateur 38 est prévu en amont de l'orifice de distribution 45 et coopérant directement avec celui-ci entre une position d'obturation et une position de distribution. La corps de pompe 10 est avantageusement réalisé d'une pièce monobloc avec ledit obturateur 38, en étant formé à l'intérieur de celui-ci, et le premier piston 72 peut avantageusement être réalisé d'une pièce monobloc avec la bague de fixation 15 et le siège 71 du clapet d'entrée 70. Un ressort 50, de préférence unique et de préférence hors de tout contact avec le produit fluide, est disposé dans la pompe pour ramener le premier piston 72 vers sa position de repos et l'obturateur 38 vers sa position d'obturation après chaque actionnement de la pompe. Par ailleurs, un tube plongeur 18 est connecté à ladite pompe pour s'étendre vers le fond du réservoir afin de distribuer la totalité du produit contenu dans celui-ci. Un profil de pulvérisation 100 est prévu au niveau de l'orifice de distribution 45 pour réaliser une pulvérisation du produit expulsé à chaque actionnement de la pompe.With reference to the figure 1 , the fluid dispenser device comprises a reservoir 60 and a pump mounted on said reservoir by means of a fixing ring 15, with interposition of a seal 65. These elements can be arbitrary and the figure 1 shows only one particular embodiment. The pump comprises a pump body 10 defining a pump or metering chamber 20 containing the product to be dispensed with each actuation of the pump, and in which slides a first piston 72. A dispensing head 40 is mounted on the fixing ring. 15, and the pump chamber 20 is advantageously formed in said head. The pump chamber further comprises an inlet valve 70, and a shutter 38 is provided upstream of the dispensing orifice 45 and cooperating directly therewith between a closed position and a dispensing position. The pump body 10 is advantageously made in one piece with said shutter 38, being formed inside thereof, and the first piston 72 may advantageously be made of a one-piece piece with the fixing ring 15 and the seat 71 of the inlet valve 70. A spring 50, preferably single and preferably out of contact with the fluid, is disposed in the pump to return the first piston 72 to its rest position and the shutter 38 to its closed position after each actuation of the pump. Furthermore, a dip tube 18 is connected to said pump to extend towards the bottom of the tank to distribute all the product contained therein. A spraying profile 100 is provided at the dispensing orifice 45 for spraying the expelled product with each actuation of the pump.

Les figures 2 à 4 représentent une première variante de réalisation. Selon cette première variante de réalisation, l'extrémité de la tête de pulvérisation 40 qui incorpore l'orifice de pulvérisation 45, est rétrécie et forme un manchon 150 dans lequel coulisse axialement l'obturateur 38. Cet obturateur 38 peut avantageusement être réalisé de manière monobloc avec un second piston 34 comme visible sur la figure 1. Le manchon 150 est réalisé de préférence de manière monobloc dans le fond de la tête de pulvérisation 40 et il incorpore le profil de pulvérisation 100. Ce profil de pulvérisation 100 comporte une chambre de tourbillonnement 101, qui est disposée directement en amont de l'orifice de pulvérisation 45 et qui est reliée à celui-ci en position de distribution. Le profil de pulvérisation 100 comporte également au moins un canal non radial 110, de préférence deux disposés symétriquement l'un par rapport à l'autre autour de l'axe central X de la pompe. Bien entendu, un nombre quelconque de canaux 110 est envisageable. Ces canaux non radiaux 110 sont reliés à la chambre de tourbillonnement 101 lorsque le produit est expulsé. Comme visible sur les figures 2 à 4, les canaux non radiaux sont avantageusement réalisés au moins partiellement dans la paroi latérale du manchon 150, de préférence sur toute sa hauteur. Ceci permet de réaliser de manière très simple ledit profil de pulvérisation sans avoir à rajouter d'éléments au niveau de ladite tête. Dans cette variante de réalisation, la chambre de tourbillonnement 101 est de volume non nul en position d'obturation représentée sur les figures 3 et 4, et ledit obturateur 38 se déplace en fait axialement à l'intérieur de ladite chambre de tourbillonnement 101. Les canaux non radiaux 110 forment une partie de la chambre de pompe 20 et l'obturateur 38, qui forme le clapet de sortie de la chambre de pompe 20, permet lorsqu'il s'ouvre la distribution sous forme de spray du produit contenu dans cette chambre de pompe 20 à travers l'orifice de pulvérisation 45.The Figures 2 to 4 represent a first embodiment variant. According to this first embodiment, the end of the spray head 40 which incorporates the spray orifice 45, is narrowed and forms a sleeve 150 in which slides axially shutter 38. This shutter 38 can advantageously be made in one piece with a second piston 34 as visible on the figure 1 . The sleeve 150 is preferably made in one piece in the bottom of the spray head 40 and incorporates the spray profile 100. This spray profile 100 comprises a swirl chamber 101, which is arranged directly upstream of the orifice 45 and which is connected thereto in the dispensing position. The spraying profile 100 also comprises at least one non-radial channel 110, preferably two symmetrically arranged relative to one another about the central axis X of the pump. Of course, any number of channels 110 is possible. These non-radial channels 110 are connected to the swirl chamber 101 when the product is expelled. As visible on Figures 2 to 4 , the non-radial channels are advantageously made at least partially in the side wall of the sleeve 150, preferably over its entire height. This makes it possible to achieve very simply said spray profile without having to add elements at said head. In this variant embodiment, the swirl chamber 101 is of non-zero volume in the closed position represented on the Figures 3 and 4 and said shutter 38 actually moves axially within said swirl chamber 101. The non-radial channels 110 form a portion of the pump chamber 20 and the shutter 38, which forms the outlet valve of the chamber pump 20, when it opens the spray distribution of the product contained in the pump chamber 20 through the spray orifice 45.

Les figures 5 et 6 montrent une variante de réalisation, dans laquelle le manchon axial 150 est réalisé également de manière monobloc dans le fond de la tête 40, mais en faisant saillie par rapport audit fond. De même, l'obturateur 38 est réalisé légèrement différemment, en comportant notamment l'élément obturateur proprement dit qui est central et qui coopère directement avec l'orifice de pulvérisation 45 mais également une lèvre périphérique entourant ledit élément obturateur et coulissant dans ledit manchon axial 150. Les canaux non radiaux 110 s'étendent également sur sensiblement toute la hauteur du manchon axial, à l'exception de la partie d'extrémité supérieure fermée par ledit obturateur 38 en position d'obturation. Dans cette variante de réalisation, la chambre de tourbillonnement 101 est de volume sensiblement nul en position d'obturation et c'est lors du déplacement de l'obturateur 38 vers sa position d'ouverture que la chambre de tourbillonnement est créée en étant reliée aux canaux non radiaux 110 permettant la pulvérisation du produit.The Figures 5 and 6 show an alternative embodiment, wherein the axial sleeve 150 is also integrally formed in the bottom of the head 40, but projecting from said bottom. Similarly, the shutter 38 is made slightly differently, including in particular the shutter element itself which is central and which cooperates directly with the spray orifice 45 but also a peripheral lip surrounding said shutter member and sliding in said axial sleeve 150. The non-radial channels 110 also extend over substantially the entire height of the sleeve axial, with the exception of the upper end portion closed by said shutter 38 in the closed position. In this variant embodiment, the swirl chamber 101 is of substantially zero volume in the closed position and it is during the displacement of the shutter 38 towards its open position that the swirl chamber is created by being connected to the non-radial channels 110 for spraying the product.

Les figures 7 et 8 montrent une variante de réalisation, dans laquelle l'obturateur 38 s'emboîtent sur le manchon 150 pour limiter le volume mort en position d'obturation. Selon l'invention, ledit au moins un canal non radial 110 est oblique dans la paroi latérale du manchon 150 pour amener le produit dans la chambre de tourbillonnement 101.The Figures 7 and 8 show an alternative embodiment, in which the shutter 38 fit on the sleeve 150 to limit the dead volume in the closed position. According to the invention, said at least one non-radial channel 110 is oblique in the side wall of the sleeve 150 to bring the product into the swirl chamber 101.

Les figures 9a et 10b représentent encore une autre variante de réalisation, dans lesquelles le manchon 150 est fendu sur pratiquement toute sa hauteur, chaque fente formant un canal non radial 110. Les vues en coupe horizontale des figures 9b et 10b montrent comment l'obturateur remplit le volume mort en position d'obturation et au contraire ouvre l'orifice de pulvérisation 45 et les canaux non radiaux 110 en position de pulvérisation.The Figures 9a and 10b represent yet another alternative embodiment, wherein the sleeve 150 is slotted over substantially its entire height, each slot forming a non-radial channel 110. The horizontal sectional views of Figures 9b and 10b show how the shutter fills the dead volume in the closed position and on the contrary opens the spray orifice 45 and the non-radial channels 110 in the spray position.

La mise en oeuvre de la l'invention, qui prévoit avantageusement de réaliser les canaux de pulvérisation sur environ toute la hauteur d'un manchon axial ménagé dans le fond de la tête, est avantageuse en ce qu'elle simplifie la fabrication de ce profil de pulvérisation au niveau d'une partie d'extrémité de la tête de pulvérisation 40 qui est traditionnellement relativement fragile en raison des faible épaisseurs de parois existantes à ces endroits. La présente invention permet notamment d'éviter d'avoir à ménager des canaux au niveau de la paroi de fond dudit manchon axial 150 qui comprend l'orifice de pulvérisation 45. Au contraire, la totalité de cette surface de fond du manchon axial 150 forme la chambre de tourbillonnement 101 lorsque l'obturateur est en position d'ouverture, comme représenté sur la figure 6.The implementation of the invention, which advantageously provides for producing the spray channels over approximately the entire height of an axial sleeve formed in the bottom of the head, is advantageous in that it simplifies the manufacture of this profile. spraying at an end portion of the spray head 40 which is traditionally relatively brittle due to the low wall thicknesses existing at these locations. The present invention makes it possible in particular to avoid having to provide channels at the bottom wall of said axial sleeve 150 which comprises the spray orifice 45. On the contrary, the whole of this bottom surface of the axial sleeve 150 forms the swirl chamber 101 when the shutter is in the open position, as shown in FIG. figure 6 .

Bien que l'invention a été décrite en référence à deux variantes de réalisation de celle-ci, il est entendu qu'elle n'est pas limitée par les exemples représentés, mais qu'un homme du métier peut y apporter toutes modifications utiles sans sortir du cadre de la présente invention tel que défini par les revendications annexées.Although the invention has been described with reference to two embodiments thereof, it is understood that it is not limited by the examples shown, but that a person skilled in the art can make any modifications thereto. useful without departing from the scope of the present invention as defined by the appended claims.

Claims (9)

  1. Fluid product spray head (40) comprising a spray orifice (45) and a spray profile (100) upstream from said spray orifice (45), said spray profile comprising a swirling chamber (101) connected, when the product is sprayed, to said spray orifice (45) and at least one non-radial channel (110) connected to said swirling chamber (101), said spray profile (100) being embodied in the bottom of said spray head (40), an obturator (38) directly interacting with said spray orifice (45) by being movable and/or deformable between a closed position of said spray orifice (45) and an open position of said spray orifice (45), characterised in that said head (40) comprises a hollow axial sleeve (150) accommodating said spray profile (100), said obturator (38) being displaced and/or deformed axially at least partially in said sleeve (150), said at least one non-radial channel (110) of the spray profile (100) extending obliquely at least partially in the lateral wall of said sleeve (150).
  2. Head according to claim 1, wherein said at least one non-radial channel (110) extends over approximately the entire axial height of said axial sleeve (150).
  3. Head according to any one of the previous claims, wherein the swirling chamber (101) is of nil volume in the closed position of the obturator (38), the displacement and/or deformation of said obturator (38) towards its open position forming said swirling chamber (101) upstream from said spray orifice (45) and downstream from said at least one non-radial channel (110).
  4. Head according to any one of claims 1 to 2, wherein the swirling chamber (101) is of non-nil volume in the closed position of said obturator (38), the latter traversing said swirling chamber (101) to block said spray orifice (45).
  5. Head according to any one of the previous claims, wherein the spray profile (100) comprises two non-radial channels (110) placed symmetrically relative to the central axis (X) of the pump.
  6. Head according to any one of the previous claims, wherein said axial sleeve (150) is formed in one piece in the bottom of said spray head (40).
  7. Fluid product dispensing pump, characterised in that it comprises a spray head (40) according to any one of the previous claims.
  8. Pump according to claim 7, wherein said pump comprises a pump chamber (20) defining the dose of product expelled each time it is actuated, placed immediately upstream of said spray orifice (45), said obturator (38) sliding in said pump chamber (20).
  9. Fluid product dispensing device, characterised in that it comprises a tank (60) and a pump according to any one of claims 7 and 8.
EP04805812A 2003-11-07 2004-11-05 Fluid product spray head and distributing pump comprising this spray head Expired - Fee Related EP1697670B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313095A FR2862009B1 (en) 2003-11-07 2003-11-07 FLUID PRODUCT SPRAYING HEAD AND DELIVERY PUMP COMPRISING SUCH A HEAD.
PCT/FR2004/050569 WO2005045292A1 (en) 2003-11-07 2004-11-05 Fluid product spray head and distributing pump comprising this spray head

Publications (2)

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EP1697670A1 EP1697670A1 (en) 2006-09-06
EP1697670B1 true EP1697670B1 (en) 2008-02-20

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EP04805812A Expired - Fee Related EP1697670B1 (en) 2003-11-07 2004-11-05 Fluid product spray head and distributing pump comprising this spray head

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US (1) US7448559B2 (en)
EP (1) EP1697670B1 (en)
JP (1) JP4847871B2 (en)
CN (1) CN100487292C (en)
DE (1) DE602004011986T2 (en)
FR (1) FR2862009B1 (en)
WO (1) WO2005045292A1 (en)

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Also Published As

Publication number Publication date
WO2005045292A1 (en) 2005-05-19
DE602004011986D1 (en) 2008-04-03
US20070131799A1 (en) 2007-06-14
FR2862009A1 (en) 2005-05-13
DE602004011986T2 (en) 2009-02-26
FR2862009B1 (en) 2007-01-05
CN100487292C (en) 2009-05-13
US7448559B2 (en) 2008-11-11
EP1697670A1 (en) 2006-09-06
JP4847871B2 (en) 2011-12-28
JP2007515266A (en) 2007-06-14
CN1886612A (en) 2006-12-27

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