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EP2069072B1 - Ensemble de distribution et distributeur de produit fluide comportant un tel ensemble de distribution - Google Patents

Ensemble de distribution et distributeur de produit fluide comportant un tel ensemble de distribution Download PDF

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Publication number
EP2069072B1
EP2069072B1 EP07848346.8A EP07848346A EP2069072B1 EP 2069072 B1 EP2069072 B1 EP 2069072B1 EP 07848346 A EP07848346 A EP 07848346A EP 2069072 B1 EP2069072 B1 EP 2069072B1
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EP
European Patent Office
Prior art keywords
piston
spray
spray head
pump
dispensing
Prior art date
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Application number
EP07848346.8A
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German (de)
English (en)
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EP2069072A1 (fr
Inventor
Ludovic Petit
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Aptar France SAS
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Aptar France SAS
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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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • 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
    • 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
    • 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
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve

Definitions

  • the present invention relates to a dispensing assembly for fluid dispenser.
  • the present invention also relates to a fluid dispenser comprising such a dispensing assembly.
  • the present invention relates more particularly to spraying devices, in particular of the nasal type, and is preferably applied to sprayers incorporating a shutter of the dispensing orifice.
  • the spray head In a sprayer, for example of the nasal type, the spray head generally incorporates a spraying profile provided upstream of the dispensing orifice and adapted to swirl the product before its expulsion in the form of a spray.
  • this spray profile may comprise one or more non-radial channels provided at the bottom wall of the spray head, said channels leading to a swirl chamber disposed just upstream of the dispensing orifice.
  • an insert is disposed in the spray head to substantially fill the dead volume of the expulsion channel and thus leave only a small channel, and secondly to form the bottom of the profile of spray.
  • An additional piece forming the insert is necessary to achieve said spray profile.
  • Shutters for closing the dispensing orifice of a fluid dispenser are well known in the state of the art. There are several types.
  • a first family of shutters comprises those which are elastically biased towards their closed position and which are deformed or displaced by the pressure of the product in the dispensing phase to open the dispensing orifice. These devices may either comprise shutters of deformable material, or shutters made in the form of piston sliding in the expulsion channel a distance from the dispensing orifice under the effect of the pressure exerted by the product.
  • the document US-5,806,762 discloses a deformable shutter, surrounding a rigid insert, whose shutter function is directly related to the pressure exerted by the fluid within the device.
  • Another family of shutters comprises shutters mechanically deformed by a portion of the dispensing head at the time of actuation of the device to dispense a dose of product. In this case, the opening of the shutter is independent of the pressure exerted by the product.
  • the document WO 03/041865 discloses a nasal spray, wherein the insert is slidably mounted in the head to form the shutter. A fixed sleeve is attached to define the spray profile.
  • the device of this document WO 03/041865 therefore requires four separate parts to form the head, namely the body of the head, the piston, the movable insert (shutter) and the sleeve. The assembly of these four parts can also be quite complex and therefore expensive.
  • the present invention also aims to provide a fluid dispenser fluid dispenser assembly that does not reproduce the aforementioned disadvantages.
  • the present invention aims to provide a dispensing assembly that is simple to manufacture and assemble, and that does not require modifications of the dispensing head.
  • Another object of the present invention is to provide a dispensing assembly for a fluid dispenser in which the geometry of the spray profile provided upstream of the dispensing orifice is not modified during the expulsion of the product, thus guaranteeing a optimal quality of the spray.
  • the present invention also aims to provide a fluid dispenser comprising such a dispensing assembly.
  • the present invention therefore relates to a fluid dispenser assembly as described in claim 1.
  • the dependent claims describe advantageous embodiments.
  • the present invention also relates to a fluid dispenser device comprising a reservoir and a dispensing assembly as defined above.
  • the present invention more particularly relates to a dispensing assembly provided with a shutter.
  • the Figures 2, 3 and 5 represent the part end of a nasal dispensing head, but the present invention can very well also adapt to distribution heads of another type.
  • the dispensing assembly comprises a pump 50 and a spray head 10.
  • the pump 50 can be mounted on a reservoir 100, only a portion of which is shown in dashed lines on the figure 1 . It may comprise a dip tube 59 extending towards the bottom of the tank.
  • the mounting of the pump can be achieved by means of a fixing ring 80, advantageously with the interposition of a seal 90.
  • the ring 80 can be a separate piece or be formed of a one-piece piece with the pump 50 , as shown on the figure 1 . Its assembly can be arbitrary, for example by snapping, screwing or crimping.
  • the dispensing head 10 comprises a body 11 defining an expulsion channel 12 which terminates in a dispensing orifice 1.
  • a rigid insert 30 is disposed in this expulsion channel 12 making it possible to limit the dead volume of the expulsion channel and thus define a narrow passage for the product, promoting its spraying at the dispensing orifice.
  • the dispensing head comprises a spray profile 20, preferably formed between the bottom end wall of the spray head 10 and said insert 30, the dispensing orifice 3 then being preferably in the center of said spray profile.
  • the spraying profile may comprise non-radial swirl channels (not shown) which connect to a swirl chamber disposed directly upstream of the dispensing orifice 1.
  • the spraying profile 20 may be formed in the bottom wall of the head 10, as shown in the Figures 1 to 4 , or on the contrary in the insert 30, as represented on the figure 5 .
  • the pump 50 comprises a pump chamber 56 provided with an inlet valve 75, such as a ball on the example of the figure 1 .
  • the pump 50 comprises a pump body 52 in which slides at least a first piston 51.
  • the pump also comprises a shutter 40 disposed upstream of the dispensing orifice 1 and adapted to close this orifice when the pump is not not used.
  • This shutter 40 is movable between a closed position, shown on the figure 1, 2 , 4 and 5 , in which it cooperates with the dispensing orifice 1 to close it, and a non-sealing position, represented on the figure 3 , in which it is moved away from said dispensing orifice 1.
  • the shutter In the rest position, the shutter is biased elastically towards its closed position, in particular by means of the return spring 70 of the pump as shown in the drawings. .
  • a specific spring could be assigned to said shutter 40.
  • the swirl chamber of the spray profile 20 is of substantially zero volume in the closed position, the displacement of the shutter 40 towards its non-sealing position creating a volume forming the chamber of swirling.
  • Other implementations are however also possible.
  • the pump represented on the figure 1 comprises a second piston 57 which also slides sealingly in the pump body 52.
  • This second piston 57 is adapted to cooperate with the shutter 40 to move it to its non-sealing position, preferably at the end of the actuation. the pump.
  • This provides a number of advantages. Indeed, this implementation makes it possible to achieve a mechanical opening of the shutter 40 independent of the pressure of the product in the pump during actuation. In addition, this implementation allows to open the shutter at the end of actuation, which ensures a perfect distribution of the entire dose.
  • the present invention is not limited to this example of a particular pump shown in FIG. figure 1 but instead applies to all kinds of pumps.
  • the figure 4 represents another type of pump in which the shutter 40 is extended by a skirt 45 forming the inlet valve 75 of the pump chamber 56.
  • the invention can also be applied to other types of pumps.
  • said rigid insert 30 is integral with said first piston 51, and the first piston 51 is fixed relative to the spray head 10.
  • the insert 30 is formed by said first piston 51, it is to say that these two pieces are made of a single piece.
  • the first piston 51 has a through passage 55 formed in a wall of said first piston 51, and which is adapted to allow the passage of the fluid from the inside of said first piston 51 outwardly of said first piston 51.
  • said shutter 40 slides inside said first piston 51, as shown in the figures. In this way, the geometry of the spraying profile 20 remains unchanged, in particular at non-radial channels (not shown), regardless of the position of the shutter 10.

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

Description

  • La prĂ©sente invention concerne un ensemble de distribution pour distributeur de produit fluide. La prĂ©sente invention concerne Ă©galement un distributeur de produit fluide comportant un tel ensemble de distribution.
  • La prĂ©sente invention concerne plus particuliĂšrement les dispositifs de pulvĂ©risation, notamment du type nasal, et s'applique de prĂ©fĂ©rence Ă  des pulvĂ©risateurs incorporant un obturateur de l'orifice de distribution.
  • Dans un pulvĂ©risateur, par exemple du type nasal, la tĂȘte de pulvĂ©risation incorpore gĂ©nĂ©ralement un profil de pulvĂ©risation prĂ©vu en amont de l'orifice de distribution et adaptĂ© Ă  faire tourbillonner le produit avant son expulsion sous forme de spray. De maniĂšre connue, ce profil de pulvĂ©risation peut comporter un ou plusieurs canaux non radiaux prĂ©vus au niveau de la paroi de fond de la tĂȘte de pulvĂ©risation, lesdits canaux menant Ă  une chambre de tourbillonnement disposĂ©e juste en amont de l'orifice de distribution.
  • GĂ©nĂ©ralement, un insert est disposĂ© dans la tĂȘte de pulvĂ©risation pour d'une part remplir sensiblement le volume mort du canal d'expulsion et ainsi ne laisser qu'un canal de petite dimension, et d'autre part pour former le fond du profil de pulvĂ©risation. Une piĂšce supplĂ©mentaire formant l'insert est donc nĂ©cessaire pour rĂ©aliser ledit profil de pulvĂ©risation.
  • La prĂ©sence d'un obturateur an amont de l'orifice de distribution pose Ă©galement des problĂšmes.
  • Des obturateurs pour obturer l'orifice de distribution d'un distributeur de produit fluide sont bien connus dans l'Ă©tat de la technique. Il en existe plusieurs types. Une premiĂšre famille d'obturateurs comprend ceux qui sont sollicitĂ©s Ă©lastiquement vers leur position d'obturation et qui sont dĂ©formĂ©s ou dĂ©placĂ©s par la pression du produit en phase de distribution pour ouvrir l'orifice de distribution. Ces dispositifs peuvent soit comporter des obturateurs en matĂ©riau dĂ©formable, soit des obturateurs rĂ©alisĂ©s sous forme de piston coulissant dans le canal d'expulsion un Ă©loignement de l'orifice de distribution sous l'effet de la pression exercĂ©e par le produit. Le document US-5 806 762 divulgue un obturateur dĂ©formable, entourant un insert rigide, dont la fonction d'obturation est directement liĂ©e Ă  la pression exercĂ©e par le fluide au sein du dispositif. Une autre famille d'obturateurs comprend des obturateurs dĂ©formĂ©s mĂ©caniquement par une partie de la tĂȘte de distribution au moment de l'actionnement du dispositif pour distribuer une dose de produit. Dans ce cas, l'ouverture de l'obturateur est indĂ©pendante de la pression exercĂ©e par le produit.
  • Ces obturateurs, bien que fonctionnant de maniĂšre correcte, prĂ©sentent l'inconvĂ©nient d'ĂȘtre relativement compliquĂ©s Ă  fabriquer et Ă  assembler, et donc coĂ»teux. GĂ©nĂ©ralement, ils nĂ©cessitent une modification de la tĂȘte de distribution pour permettre l'adaptation de l'obturateur ce qui implique Ă©galement une Ă©lĂ©vation du coĂ»t de fabrication du dispositif de distribution de produit fluide. D'autre part, lorsque la tĂȘte de distribution incorpore un profil de pulvĂ©risation, la prĂ©sence de l'obturateur altĂšre gĂ©nĂ©ralement la gĂ©omĂ©trie dudit profil de pulvĂ©risation, ce qui est prĂ©judiciable Ă  la qualitĂ© du spray lors de l'expulsion du produit.
  • Le document WO 03/041865 divulgue un pulvĂ©risateur du type nasal, dans lequel l'insert est montĂ© coulissant dans la tĂȘte pour former l'obturateur. Un manchon fixe est rapportĂ© pour dĂ©finir le profil de pulvĂ©risation. Le dispositif de ce document WO 03/041865 nĂ©cessite donc quatre piĂšces distinctes pour former la tĂȘte, Ă  savoir le corps de la tĂȘte, le piston, l'insert mobile (obturateur) et le manchon. L'assemblage de ces quatre piĂšces peut Ă©galement s'avĂ©rer assez complexe et donc coĂ»teux. Les documents FR-2 645 835 , FR-2 862 106 , FR-2 871 786 , FR-2 862 009 , WO 03/99706 , WO 03/78073 , DE 196 22 124 et EP-0 791 398 montrent d'autres dispositifs de l'Ă©tat de la technique.
  • La prĂ©sente invention a aussi pour but de fournir un ensemble de distribution de produit fluide pour distributeur de produit fluide qui ne reproduit pas les inconvĂ©nients susmentionnĂ©s.
  • La prĂ©sente invention a pour but de fournir un ensemble de distribution qui soit simple Ă  fabriquer et Ă  assembler, et qui ne nĂ©cessite pas de modifications de la tĂȘte de distribution.
  • La prĂ©sente invention a encore pour but de fournir un ensemble de distribution pour distributeur de produit fluide dans lequel la gĂ©omĂ©trie du profil de pulvĂ©risation prĂ©vu en amont de l'orifice de distribution n'est pas modifiĂ©e lors de l'expulsion du produit, garantissant une qualitĂ© optimale du spray.
  • La prĂ©sente invention a aussi pour but de fournir un distributeur de produit fluide comportant un tel ensemble de distribution.
  • La prĂ©sente invention a donc pour objet un ensemble de distribution de produit fluide tel que dĂ©crit dans la revendication 1. Les revendications dĂ©pendantes dĂ©crivent des modes de rĂ©alisation avantageux.
  • La prĂ©sente invention a Ă©galement pour objet un dispositif de distribution de produit fluide comportant un rĂ©servoir et un ensemble de distribution tel quel dĂ©fini ci-dessus.
  • D'autres avantages et caractĂ©ristiques de l'invention apparaĂźtront plus clairement au cours de la description dĂ©taillĂ©e suivante, en rĂ©fĂ©rence aux dessins joints, donnĂ©s Ă  titre d'exemples non limitatifs, sur lesquels :
    • la figure 1 est une vue schĂ©matique en section transversale d'un ensemble de distribution selon un mode de rĂ©alisation avantageux de l'invention, en position de repos,
    • la figure 2 est une vue de dĂ©tail agrandie de la tĂȘte de pulvĂ©risation de la figure 1, en position de repos,
    • la figure 3 est une vue similaire Ă  celle de la figure 2, en position d'actionnement,
    • la figure 4 est une vue similaire Ă  celle de la figure 1, montrant une variante de rĂ©alisation de l'invention, et
    • la figure 5 est une vue similaire Ă  celle de la figure 2, montrant une autre variante de rĂ©alisation de l'invention.
  • La prĂ©sente invention concerne plus particuliĂšrement un ensemble de distribution pourvu d'un obturateur. Les figures 2, 3 et 5 reprĂ©sentent la partie d'extrĂ©mitĂ© d'une tĂȘte de distribution nasale, mais la prĂ©sente invention peut trĂšs bien Ă©galement s'adapter Ă  des tĂȘtes de distribution d'un autre type.
  • L'ensemble de distribution comporte une pompe 50 et une tĂȘte de pulvĂ©risation 10. La pompe 50 peut ĂȘtre montĂ©e sur un rĂ©servoir 100, dont seulement une partie est reprĂ©sentĂ©e en pointillĂ©s sur la figure 1. Elle peut comporter un tube plongeur 59 s'Ă©tendant vers le fond du rĂ©servoir. Le montage de la pompe peut ĂȘtre rĂ©alisĂ© au moyen d'une bague de fixation 80, avantageusement avec interposition d'un joint d'Ă©tanchĂ©itĂ© 90. La bague 80 peut ĂȘtre une piĂšce sĂ©parĂ©e ou ĂȘtre formĂ©e d'une piĂšce monobloc avec la pompe 50, comme reprĂ©sentĂ© sur la figure 1. Son assemblage peut ĂȘtre quelconque, par exemple par encliquetage, vissage ou sertissage.
  • En rĂ©fĂ©rence aux figures, la tĂȘte de distribution 10 comporte un corps 11 dĂ©finissant un canal d'expulsion 12 qui se termine par un orifice de distribution 1. Un insert rigide 30 est disposĂ© dans ce canal d'expulsion 12 permettant de limiter le volume mort du canal d'expulsion et de dĂ©finir ainsi un passage Ă©troit pour le produit, favorisant sa pulvĂ©risation au niveau de l'orifice de distribution. La tĂȘte de distribution comporte un profil de pulvĂ©risation 20, de prĂ©fĂ©rence rĂ©alisĂ© entre la paroi frontale de fond de la tĂȘte de pulvĂ©risation 10 et ledit insert 30, l'orifice de distribution 3 se trouvant alors de prĂ©fĂ©rence au centre dudit profil de pulvĂ©risation. De prĂ©fĂ©rence, et de maniĂšre connue, le profil de pulvĂ©risation peut comprendre des canaux de tourbillonnement non radiaux (non reprĂ©sentĂ©s) qui se connectent Ă  une chambre de tourbillonnement disposĂ©e directement en amont de l'orifice de distribution 1. Le profil de pulvĂ©risation 20 peut ĂȘtre formĂ© dans la paroi de fond de la tĂȘte 10, comme reprĂ©sentĂ© sur les figures 1 Ă  4, ou au contraire dans l'insert 30, comme reprĂ©sentĂ© sur la figure 5.
  • La pompe 50 comporte une chambre de pompe 56 pourvue d'un clapet d'entrĂ©e 75, tel qu'une bille sur l'exemple de la figure 1.
  • La pompe 50 comporte un corps de pompe 52 dans lequel coulisse au moins un premier piston 51. Avantageusement, la pompe comporte Ă©galement un obturateur 40 disposĂ© en amont de l'orifice de distribution 1 et adaptĂ© Ă  obturer cet orifice lorsque la pompe n'est pas utilisĂ©e. Cet obturateur 40 est dĂ©plaçable entre une position d'obturation, reprĂ©sentĂ©e sur les figure 1, 2, 4 et 5, dans laquelle il coopĂšre avec l'orifice de distribution 1 pour l'obturer, et une position de non-obturation, reprĂ©sentĂ©e sur la figure 3, dans laquelle il est dĂ©placĂ© en Ă©loignement dudit orifice de distribution 1. En position de repos l'obturateur est sollicitĂ© Ă©lastiquement vers sa position d'obturation, en particulier au moyen du ressort de rappel 70 de la pompe comme cela est reprĂ©sentĂ© sur les dessins. En variante, un ressort spĂ©cifique pourrait ĂȘtre assignĂ© audit obturateur 40.
  • Dans l'exemple reprĂ©sentĂ© sur les figures, la chambre de tourbillonnement du profil de pulvĂ©risation 20 est de volume sensiblement nul en position d'obturation, le dĂ©placement de l'obturateur 40 vers sa position de non-obturation crĂ©ant un volume formant la chambre de tourbillonnement. D'autres mises en oeuvre sont toutefois aussi envisageables.
  • Avantageusement, la pompe reprĂ©sentĂ©e sur la figure 1 comporte un second piston 57 qui coulisse Ă©galement de maniĂšre Ă©tanche dans le corps de pompe 52. Ce second piston 57 est adaptĂ© Ă  coopĂ©rer avec l'obturateur 40 pour le dĂ©placer vers sa position de non-obturation, de prĂ©fĂ©rence en fin d'actionnement de la pompe. Ceci fournit un certain nombre d'avantages. En effet, cette mise en oeuvre permet de rĂ©aliser une ouverture mĂ©canique de l'obturateur 40 indĂ©pendante de la pression du produit dans la pompe lors de l'actionnement. De plus, cette mise en oeuvre permet d'ouvrir l'obturateur en toute fin d'actionnement, ce qui garantit une parfaite distribution de la totalitĂ© de la dose. Bien entendu, la prĂ©sente invention n'est pas limitĂ©e Ă  cet exemple de pompe particulier reprĂ©sentĂ© sur la figure 1, mais s'applique au contraire Ă  toutes sortes de pompes.
  • La figure 4 reprĂ©sente un autre type de pompe dans laquelle l'obturateur 40 se prolonge par une jupe 45 formant clapet d'entrĂ©e 75 de la chambre de pompe 56. L'invention peut aussi s'appliquer Ă  d'autres types de pompes.
  • Selon l'invention, ledit insert rigide 30 est solidaire dudit premier piston 51, et le premier piston 51 est fixe par rapport Ă  la tĂȘte de pulvĂ©risation 10. De prĂ©fĂ©rence, l'insert 30 est formĂ© par ledit premier piston 51, c'est-Ă -dire que ces deux piĂšces sont rĂ©alisĂ©es d'une seule piĂšce monobloc. La prĂ©sente invention permet donc d'Ă©conomiser une piĂšce par rapport aux pompes connues. De prĂ©fĂ©rence, le premier piston 51 comporte un passage traversant 55 rĂ©alisĂ© dans une paroi dudit premier piston 51, et qui est adaptĂ© Ă  permettre le passage du produit fluide Ă  partir de l'intĂ©rieur dudit premier piston 51 vers l'extĂ©rieur dudit premier piston 51. En effet, Ă  partir du moment oĂč le premier piston 51 forme l'insert 30 qui est adaptĂ© Ă  dĂ©finir le profil de pulvĂ©risation 20 au niveau de l'orifice de distribution 1, le produit doit s'Ă©couler Ă  l'extĂ©rieur dudit insert, entre la surface extĂ©rieure dudit insert 30 et la surface intĂ©rieure du corps 11 de la tĂȘte 10. Avantageusement, ledit obturateur 40 coulisse Ă  l'intĂ©rieur dudit premier piston 51, comme visible sur les figures. De cette maniĂšre, la gĂ©omĂ©trie du profil de pulvĂ©risation 20 reste inchangĂ©e, en particulier au niveau des canaux non-radiaux (non reprĂ©sentĂ©s), quelle que soit la position de l'obturateur 10.
  • La prĂ©sente invention permet donc de rĂ©aliser avec seulement trois piĂšces, Ă  savoir le corps 11 de la tĂȘte, le premier piston 51 et l'obturateur 40, les fonctions suivantes :
    • Une parfaite pulvĂ©risation du produit lors de sa distribution, du fait que la gĂ©omĂ©trie du profil de pulvĂ©risation 20 n'est pas modifiĂ©e par le dĂ©placement de l'obturateur 40 vers sa position de non-obturation ; en effet, le piston 51 formant l'insert 30 est avantageusement fixe par rapport audit corps 11, de sorte que la gĂ©omĂ©trie du profil de pulvĂ©risation 20, et en particulier des canaux non-radiaux, reste inchangĂ©e au moment de la distribution.
    • Une parfaite obturation de l'orifice de distribution lorsque la pompe n'est pas utilisĂ©e ; en effet, l'obturateur 40 peut venir coopĂ©rer directement avec l'orifice de distribution 1, en Ă©tant sollicitĂ© Ă©lastiquement par le ressort de rappel de la pompe vers sa position d'obturation, ce qui empĂȘche toute pĂ©nĂ©tration de germes ou de bactĂ©ries Ă  l'intĂ©rieur du dispositif entre deux actionnements, et ce qui minimise de maniĂšre importante les risques de contamination du produit Ă  distribuer.
    • Une distribution garantie de la totalitĂ© de la dose Ă  chaque actionnement ; en effet, l'ouverture de l'obturateur peut se faire en toute fin d'actionnement et peut ĂȘtre rĂ©alisĂ©e mĂ©caniquement par le second piston de la pompe ; ceci fournit une parfaite prĂ©compression de cette pompe lors de son actionnement, de sorte qu'au moment de son ouverture il est garanti que la totalitĂ© de la dose sera distribuĂ©e.
  • La prĂ©sente invention a Ă©tĂ© dĂ©crite en rĂ©fĂ©rence Ă  plusieurs modes de rĂ©alisation avantageux de celle-ci, mais il est entendu que diverses modifications peuvent y ĂȘtre apportĂ©es sans sortir du cadre de la prĂ©sente invention tel que dĂ©fini par les revendications annexĂ©es.

Claims (7)

  1. Ensemble de distribution de produit fluide comportant :
    - une pompe (50) comprenant un corps de pompe (52) et au moins un premier piston (51) coulissant de maniĂšre Ă©tanche dans ledit corps de pompe (52) entre une position de non-distribution et une position de distribution,
    - une tĂȘte de pulvĂ©risation (10) montĂ©e sur ladite pompe (50) et dĂ©plaçable manuellement entre une position de repos, dans laquelle ledit premier piston (51) est en position de non-distribution, et une position d'actionnement, dans laquelle ledit premier piston (51) est dĂ©placĂ© vers sa position de distribution, ladite tĂȘte de pulvĂ©risation (10) comportant un corps (11) dĂ©finissant un canal d'expulsion (12) et pourvu d'un orifice de distribution (1), ladite tĂȘte de pulvĂ©risation (10) comprenant un insert rigide (30) disposĂ© en amont dudit profil de pulvĂ©risation (20), ladite tĂȘte de pulvĂ©risation comportant en amont dudit orifice de distribution (1) un profil de pulvĂ©risation (20) adaptĂ© Ă  pulvĂ©riser le produit fluide lors de sa distribution, ledit profil de pulvĂ©risation (20) Ă©tant rĂ©alisĂ© entre une paroi frontale de fond de ladite tĂȘte de pulvĂ©risation (10) et ledit insert rigide (30), de sorte qu'une surface d'extrĂ©mitĂ© dudit insert rigide (30) forme au moins partiellement le fond dudit profil de pulvĂ©risation (20), l'orifice de distribution (1) se trouvant de prĂ©fĂ©rence au centre dudit profil de pulvĂ©risation (20),
    caractĂ©risĂ© en ce que ledit insert rigide (30) est solidaire dudit premier piston (51), ledit premier piston (51) Ă©tant fixe par rapport Ă  ladite tĂȘte de pulvĂ©risation (10), et en ce que ledit ensemble comprend en outre un obturateur (40) disposĂ© dans ledit canal d'expulsion (12) de la tĂȘte de pulvĂ©risation (10) directement en amont de l'orifice de distribution (1), ledit obturateur (40) Ă©tant dĂ©plaçable entre une position d'obturation, dans laquelle il coopĂšre avec ledit orifice de distribution (1) pour l'obturer, et une position de non-obturation, dans laquelle il est dĂ©placĂ© en Ă©loignement dudit orifice de distribution (1), ledit obturateur (40) Ă©tant sollicitĂ© vers sa position d'obturation en position de repos de ladite tĂȘte de pulvĂ©risation (10).
  2. Ensemble selon la revendication 1, dans lequel ledit insert rigide (30) est réalisé d'une piÚce monobloc avec ledit premier piston (51).
  3. Ensemble selon la revendication 1 ou 2, dans lequel ledit premier piston (51) comporte au moins un passage traversant (55) permettant le passage du produit fluide de l'intérieur vers l'extérieur dudit premier piston (51).
  4. Ensemble selon l'une quelconque des revendications précédentes, dans lequel ledit obturateur est disposé à l'intérieur dudit premier piston (51), notamment de maniÚre coulissante.
  5. Ensemble selon l'une quelconque des revendications précédentes, dans lequel ladite pompe (50) comporte un second piston (57) coulissant de maniÚre étanche dans ledit corps de pompe (52), ledit second piston (57) coopérant avec ledit obturateur (40) pour le déplacer vers sa position de non-obturation.
  6. Ensemble selon la revendication 5, dans lequel ledit second piston (57) coopĂšre avec ledit obturateur (40) en fin d'actionnement lorsque ladite tĂȘte de pulvĂ©risation (10) arrive dans sa position d'actionnement.
  7. Dispositif de distribution de produit fluide, comportant un réservoir (100), caractérisé en ce qu'il comporte un ensemble de distribution selon l'une quelconque des revendications précédentes assemblé sur ledit réservoir.
EP07848346.8A 2006-09-20 2007-09-20 Ensemble de distribution et distributeur de produit fluide comportant un tel ensemble de distribution Active EP2069072B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0653830A FR2905941B1 (fr) 2006-09-20 2006-09-20 Ensemble de distribution et distributeur de produit fluide comportant un tel ensemble de distribution
PCT/FR2007/051974 WO2008035015A1 (fr) 2006-09-20 2007-09-20 Ensemble de distribution et distributeur de produit fluide comportant un tel ensemble de distribution

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EP2069072B1 true EP2069072B1 (fr) 2017-07-12

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FR2962351B1 (fr) * 2010-07-09 2015-01-16 Valois Sas Tete de pulverisation pour dispositif de distribution de produit fluide.
US8887197B2 (en) * 2012-11-29 2014-11-11 At&T Intellectual Property I, Lp Method and apparatus for managing advertisements using social media data
FR3004128B1 (fr) * 2013-04-08 2017-01-13 Aptar France Sas Tete de pulverisation amelioree.
US20150127472A1 (en) * 2013-11-01 2015-05-07 LiveIntent, Inc. Future decisioning for creative slots
US20170220570A1 (en) * 2016-01-28 2017-08-03 Echostar Technologies L.L.C. Adjusting media content based on collected viewer data
CN107626017B (zh) * 2017-08-16 2019-12-31 æ·±ćœłćšçșłçČŸćŻ†ç»™èŻçł»ç»Ÿè‚Ąä»œæœ‰é™ć…Źćž 䞀种滎æ¶ČèŁ…çœź
EP4186509A1 (fr) 2021-11-26 2023-05-31 Alpha Cognition Inc. Alpha-1062 pour le traitement d'une lésion cérébrale traumatique
FR3132288B1 (fr) * 2022-01-31 2024-01-05 Aptar France Sas Dispositif de distribution de produit fluide et son procédé d'amorçage

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Publication number Publication date
CN101528356B (zh) 2011-09-07
US20100032499A1 (en) 2010-02-11
FR2905941A1 (fr) 2008-03-21
WO2008035015A1 (fr) 2008-03-27
JP5060560B2 (ja) 2012-10-31
US9095864B2 (en) 2015-08-04
FR2905941B1 (fr) 2011-02-11
CN101528356A (zh) 2009-09-09
JP2010504254A (ja) 2010-02-12
EP2069072A1 (fr) 2009-06-17

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