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EP2258484A1 - Push-button for a pressurised liquid distribution system - Google Patents

Push-button for a pressurised liquid distribution system Download PDF

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Publication number
EP2258484A1
EP2258484A1 EP20100290285 EP10290285A EP2258484A1 EP 2258484 A1 EP2258484 A1 EP 2258484A1 EP 20100290285 EP20100290285 EP 20100290285 EP 10290285 A EP10290285 A EP 10290285A EP 2258484 A1 EP2258484 A1 EP 2258484A1
Authority
EP
European Patent Office
Prior art keywords
push button
nozzle
housing
recess
anvil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20100290285
Other languages
German (de)
French (fr)
Other versions
EP2258484B1 (en
Inventor
Jean-Pierre Songbe
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.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
Rexam Dispensing Systems SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rexam Dispensing Systems SAS filed Critical Rexam Dispensing Systems SAS
Publication of EP2258484A1 publication Critical patent/EP2258484A1/en
Application granted granted Critical
Publication of EP2258484B1 publication Critical patent/EP2258484B1/en
Active 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant

Definitions

  • the invention relates to a push button for a dispensing system for a pressurized liquid, as well as to such a dispensing system.
  • the dispensing system is intended to equip bottles used in perfumery, in cosmetics or for pharmaceutical treatments.
  • this type of bottle contains a liquid which is returned by a dispensing system comprising a device for sampling under pressure of said liquid, said system being actuated by a push button to allow the spraying of the liquid.
  • the sampling device comprises a pump or a manually operated valve via the push button.
  • Such push buttons are conventionally made in two parts: an actuating body and a liquid spray nozzle which are associated with one another to form a vortex assembly comprising a vortex chamber provided with a dispensing orifice as well as channels for dispensing fluid. feeding of said chamber.
  • the vortex chamber is arranged to rotate very quickly the liquid so that it escapes through the orifice with a sufficient speed to split into droplets forming the aerosol.
  • the nozzle is mounted around an anvil formed in a housing of the body.
  • the vortex assembly is then delimited between a proximal wall of the nozzle in which is formed a cavity of said vortex assembly and a distal wall of said anvil which is classically flat.
  • the nozzle is pressed on the anvil until the distal wall is pressed against the proximal wall and laterally closes the impression to form the swirl assembly.
  • the document FR-2 907 106 describes such a recess to form a swirling counter-chamber so to homogenize the aerosol and the document EP-1 042 072 proposes a recess size sufficient to solve the problem of residual flow.
  • the vortex assembly is made at the interface between the nozzle and the anvil which, particularly in view of their size, are difficult to produce industrially large quantities by perfectly mastering the accuracy of their geometry.
  • the assembly of the nozzle on the anvil must be performed industrially at high rate, which does not ensure optimal positioning of said nozzle on said anvil.
  • the distal wall may have after pressing a convex shape disturbing the swirling of the liquid in the chamber.
  • the anvil may undergo deformations due to the withdrawal of the material during its cooling after molding producing its skew.
  • the distal wall is then crooked which causes during pressing the partial concealment of some asymmetrical supply channels and especially a distal wall not only convex, but not having a symmetry of revolution.
  • the aerosol produced is then called "hollow", that is to say that there are very few droplets at its center, or deformed which means that its impact is not circular, or off-axis, or crosswise to the axis of the dispensing orifice.
  • the object of the invention is to solve the problems of the prior art by proposing in particular a push button in which the quality of the aerosol generated by the swirl assembly can be guaranteed independently of the dispersions of manufacture and / or assembly of the spray nozzle around the anvil of the actuating body.
  • the invention proposes a push button for a system for dispensing a liquid under pressure, said push button comprising a body having a mounting well on a tube for supplying the pressurized liquid. and a housing in communication with said well, said housing being provided with an anvil around which a spray nozzle is mounted to form a fluid distribution path between said housing and a vortex assembly comprising a vortex chamber provided with a dispensing orifice and at least one supply channel of said chamber, said nozzle having a proximal wall in which is formed an impression of the swirl assembly and said anvil having a distal wall on which the proximal wall of the nozzle is in support to delimit between them said swirl assembly, said distal wall having a recess which is formed in view of the cavity of the vortex chamber, the maximum depth of said recess being between 25% and 300% of the minimum depth of the channel footprint.
  • the invention proposes a system for dispensing a liquid under pressure, comprising a sampling device equipped with a pressurized liquid supply tube on which the well of such a push button is mounted to allow spraying of the liquid.
  • a push button for a dispensing system for a pressurized liquid is described below, said liquid being of any nature, in particular used in perfumery, in cosmetics or for pharmaceutical treatments.
  • the push button comprises a body 1 having an annular skirt of appearance 2 surrounding a well 3 mounting the push button on a tube for supplying the pressurized liquid. Furthermore, the push button comprises an upper zone 4 allowing the user to exert a digital support on said push button in order to move it axially.
  • the dispensing system comprises a sampling device equipped with a tube for supplying the pressurized liquid (not shown) which is sealed in the well 3.
  • the dispensing system also comprises mounting means on a bottle containing the liquid and liquid collection means inside said bottle which are arranged to supply the feed tube with liquid under pressure.
  • the sampling device may comprise a manually operated pump or, in the case where the liquid is packaged under pressure in the bottle, a manually operated valve.
  • a manually operated pump or, in the case where the liquid is packaged under pressure in the bottle, a manually operated valve.
  • the pump or the valve is actuated to supply the supply tube with liquid under pressure.
  • the body 1 also has an annular housing 5 of axis perpendicular to that of the mounting well 3, said housing having a rear wall 6 on which axially extends a cylindrical anvil 7 of revolution. Furthermore, the housing 5 is in communication with the well 3 through an orifice 8 formed in the rear wall 6 to allow the passage of the fluid supplied by the tube from said well into said housing.
  • the push button also comprises a spray nozzle 9 which is associated with the body 1 by being mounted around the anvil 7 so as to form a fluid distribution path.
  • the nozzle 9 is arranged collinearly with the axis of the housing 5 to allow lateral spraying of the liquid relative to the body 1 of the push button.
  • the nozzle 9 has a cylindrical side wall 10 of revolution which is closed forward by a proximal wall 11.
  • the association of the nozzle 9 in the housing 5 is formed by fitting the outer face of the side wall 10, the rear edge of said outer face being further provided with a radial projection 12 for anchoring the nozzle 9 in said housing.
  • the nozzle 9 and the body 1 are made by molding, in particular of a different thermoplastic material.
  • the material forming the nozzle 9 has a stiffness that is greater than the stiffness of the material forming the body 1.
  • the significant stiffness of the nozzle 9 prevents its deformation during fitting.
  • the lower stiffness of the body 1 allows on the one hand a more qualitative touch during the actuation and on the other hand an improved seal between the mounting well 3 and the feed tube.
  • the greater rigidity of the nozzle 9 improves the reliability of the harpooning of the projection 12 in the housing 5 to avoid the risk of expulsion of the nozzle 9 during distribution.
  • the body 1 is made of polyolefin and the nozzle 9 is made of cycloolefinic copolymer (COC), poly (oxymethylene) or poly (butylene terephthalate).
  • the distribution path comprises an annular duct 13 which is formed between the inner face of the side wall 10 of the nozzle 9 and the outer face of the side wall 14 of the anvil 7.
  • this annular duct 13 is supplied with pressurized liquid from port 8 by via an upstream annular duct 15 which is formed between the side wall 14 and the housing 5.
  • the annular duct 13 supplies pressurized liquid to a vortex assembly comprising a vortex chamber 16 provided at its center with a dispensing orifice 17 and at least one supply channel 18 of said chamber.
  • a vortex assembly comprising a vortex chamber 16 provided at its center with a dispensing orifice 17 and at least one supply channel 18 of said chamber.
  • an impression of the vortex assembly is formed recess on the rear face of the proximal wall 11 of the nozzle 9 and the anvil 7 has a distal wall 19 on which the proximal wall 11 is supported to delimit between they said swirling assembly.
  • the vortex assembly comprises four radial feed channels 18 which open laterally into the vortex chamber 16, said channels having a constant U-section.
  • a different number of feed channels 18 may be provided. provided, possibly with an orientation and / or a modified geometry, and another mode of supply of the vortex chamber 16.
  • the distal wall 19 has a recess 20 which is formed facing the cavity of the vortex chamber 16, the maximum depth of said recess being between 25% and 300% of the minimum depth of the channel 18 footprint .
  • the depth of the supply channels 18 is constant and similar to that of the vortex chamber 16.
  • the depth of the recess 20 is sufficient to ensure that, after pressing the nozzle 9 on the anvil 7, the geometry of the distal wall 19 which is arranged facing the vortex chamber 16 is never convex, and this taking into account the manufacturing and assembly dispersions of the nozzle 9 around the anvil 7.
  • the depth of the recess 20 is sufficiently limited not to interact significantly on the characteristics of the aerosol dispensed, in particular by not being large enough to form swirling counter-chamber.
  • the quality of the aerosol remains identical from one manufacture to another while maintaining high manufacturing and assembly rates.
  • the maximum depth of the recess 20 is between 50% and 150% of the minimum depth of the channel footprint 18.
  • the recess 20 may have an opening whose size is between 80% and 110% of the diameter of the vortex chamber 16, in particular being substantially equal to said diameter.
  • the recess 20 has a geometry of revolution, more precisely cylindrical of revolution on the Figures 1 and 2 .
  • a slightly frustoconical or semi-elliptical geometry can be provided as shown in FIG. figure 3 .
  • the diameter of the vortex chamber 16 is 0.6 mm
  • the feed channels 18 have a depth of 0.33 mm for a width of 0.2 mm
  • the diameter of the recess 20 is between 0.5 and 0.6 mm for a depth before pressing between 0.1 and 0.5 mm.

Landscapes

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

Abstract

The push-button has a body (1) comprising mounting wells (3) on a pressurized liquid delivery tube and a housing (5) communicating with the wells. A spraying nozzle (9) is mounted around an anvil (7) of the housing to form a fluid dispensing path between the housing and a vortex unit. The unit has a vortex chamber (16) provided with a dispensing orifice (17) and a supply channel (18). The anvil has a distal wall (19) with a recess (20) formed across from a print of the chamber, where maximum depth of the recess ranges from 25 to 300 percentages of minimum depth of a print of the channel. An independent claim is also included for a pressurized liquid dispensing system comprising a spraying device.

Description

L'invention concerne un bouton poussoir pour un système de distribution d'un liquide sous pression, ainsi qu'un tel système de distribution.The invention relates to a push button for a dispensing system for a pressurized liquid, as well as to such a dispensing system.

Dans une application particulière, le système de distribution est destiné à équiper des flacons utilisés en parfumerie, en cosmétique ou pour des traitements pharmaceutiques. En effet, ce type de flacon contient un liquide qui est restitué par un système de distribution comprenant un dispositif de prélèvement sous pression dudit liquide, ledit système étant actionné par un bouton poussoir pour permettre la pulvérisation du liquide. En particulier, le dispositif de prélèvement comprend une pompe ou une valve à actionnement manuel par l'intermédiaire du bouton poussoir.In a particular application, the dispensing system is intended to equip bottles used in perfumery, in cosmetics or for pharmaceutical treatments. Indeed, this type of bottle contains a liquid which is returned by a dispensing system comprising a device for sampling under pressure of said liquid, said system being actuated by a push button to allow the spraying of the liquid. In particular, the sampling device comprises a pump or a manually operated valve via the push button.

De tels boutons poussoirs sont classiquement réalisés en deux parties : un corps d'actionnement et une buse de pulvérisation du liquide qui sont associés entre eux pour former un ensemble tourbillonnaire comprenant une chambre tourbillonnaire pourvue d'un orifice de distribution ainsi que des canaux d'alimentation de ladite chambre. En particulier, la chambre tourbillonnaire est agencée pour faire tourner très rapidement le liquide afin qu'il s'échappe par l'orifice avec une vitesse suffisante pour se fractionner en gouttelettes formant l'aérosol.Such push buttons are conventionally made in two parts: an actuating body and a liquid spray nozzle which are associated with one another to form a vortex assembly comprising a vortex chamber provided with a dispensing orifice as well as channels for dispensing fluid. feeding of said chamber. In particular, the vortex chamber is arranged to rotate very quickly the liquid so that it escapes through the orifice with a sufficient speed to split into droplets forming the aerosol.

Selon une réalisation connue, la buse est montée autour d'une enclume formée dans un logement du corps. L'ensemble tourbillonnaire est alors délimité entre une paroi proximale de la buse dans laquelle est formée une empreinte dudit ensemble tourbillonnaire et une paroi distale de ladite enclume qui est classiquement plane. Pour ce faire, la buse est pressée sur l'enclume jusqu'à ce que la paroi distale soit plaquée sur la paroi proximale et ferme latéralement l'empreinte afin de former l'ensemble tourbillonnaire.According to a known embodiment, the nozzle is mounted around an anvil formed in a housing of the body. The vortex assembly is then delimited between a proximal wall of the nozzle in which is formed a cavity of said vortex assembly and a distal wall of said anvil which is classically flat. To do this, the nozzle is pressed on the anvil until the distal wall is pressed against the proximal wall and laterally closes the impression to form the swirl assembly.

On connaît par ailleurs, la réalisation d'évidements de grande profondeur dans la paroi distale de l'enclume. En particulier, le document FR-2 907 106 décrit un tel évidement pour former une contre-chambre tourbillonnaire afin d'homogénéiser l'aérosol et le document EP-1 042 072 propose une taille d'évidement suffisant pour résoudre le problème de l'écoulement résiduel.In addition, it is known to provide recesses of great depth in the distal wall of the anvil. In particular, the document FR-2 907 106 describes such a recess to form a swirling counter-chamber so to homogenize the aerosol and the document EP-1 042 072 proposes a recess size sufficient to solve the problem of residual flow.

L'ensemble tourbillonnaire est réalisé à l'interface entre la buse et l'enclume qui, notamment compte tenu de leur taille, sont des pièces difficilement réalisables industriellement en grande quantité en maitrisant parfaitement la précision de leur géométrie. En outre, l'assemblage de la buse sur l'enclume doit être réalisé industriellement à cadence élevée, ce qui ne permet pas de garantir un positionnement optimal de ladite buse sur ladite enclume.The vortex assembly is made at the interface between the nozzle and the anvil which, particularly in view of their size, are difficult to produce industrially large quantities by perfectly mastering the accuracy of their geometry. In addition, the assembly of the nozzle on the anvil must be performed industrially at high rate, which does not ensure optimal positioning of said nozzle on said anvil.

Il en résulte donc une dispersion dans la géométrie des ensembles tourbillonnaires, ce qui affecte directement la qualité de l'aérosol distribué. En particulier, le pressage de la buse contre l'enclume entraine parfois un fluage du matériau de ladite enclume dans les canaux d'alimentation les occultant en partie.This results in a dispersion in the geometry of vortex sets, which directly affects the quality of the aerosol dispensed. In particular, the pressing of the nozzle against the anvil sometimes causes a creep material of said anvil in the supply channels partially obscuring them.

En outre, la paroi distale peut présenter après pressage une forme convexe perturbant le tourbillonnement du liquide dans la chambre. Par ailleurs, l'enclume peut subir des déformations dues au retrait du matériau lors de son refroidissement après moulage produisant sa mise en travers. La paroi distale est alors de travers ce qui entraine lors du pressage l'occultation partielle dissymétrique de certains canaux d'alimentation et surtout une paroi distale non seulement convexe, mais ne présentant pas une symétrie de révolution. L'aérosol produit est alors dit « creux », c'est à dire qu'il y a très peu de gouttelettes en son centre, ou bien déformé ce qui signifie que son impact n'est pas circulaire, ou bien désaxé, ou encore de travers par rapport à l'axe de l'orifice de distribution.In addition, the distal wall may have after pressing a convex shape disturbing the swirling of the liquid in the chamber. Furthermore, the anvil may undergo deformations due to the withdrawal of the material during its cooling after molding producing its skew. The distal wall is then crooked which causes during pressing the partial concealment of some asymmetrical supply channels and especially a distal wall not only convex, but not having a symmetry of revolution. The aerosol produced is then called "hollow", that is to say that there are very few droplets at its center, or deformed which means that its impact is not circular, or off-axis, or crosswise to the axis of the dispensing orifice.

L'invention a pour but de résoudre les problèmes de l'art antérieur en proposant notamment un bouton poussoir dans lequel la qualité de l'aérosol généré par l'ensemble tourbillonnaire peut être garantie indépendamment des dispersions de fabrication et/ou d'assemblage de la buse de pulvérisation autour de l'enclume du corps d'actionnement.The object of the invention is to solve the problems of the prior art by proposing in particular a push button in which the quality of the aerosol generated by the swirl assembly can be guaranteed independently of the dispersions of manufacture and / or assembly of the spray nozzle around the anvil of the actuating body.

A cet effet, et selon un premier aspect, l'invention propose un bouton poussoir pour un système de distribution d'un liquide sous pression, ledit bouton poussoir comprenant un corps présentant un puits de montage sur un tube d'amenée du liquide sous pression et un logement en communication avec ledit puits, ledit logement étant pourvu d'une enclume autour de laquelle une buse de pulvérisation est montée de sorte à former un chemin de distribution du fluide entre ledit logement et un ensemble tourbillonnaire comprenant une chambre tourbillonnaire pourvue d'un orifice de distribution ainsi qu'au moins un canal d'alimentation de ladite chambre, ladite buse présentant une paroi proximale dans laquelle est formée une empreinte de l'ensemble tourbillonnaire et ladite enclume présentant une paroi distale sur laquelle la paroi proximale de la buse est en appui pour délimiter entre elles ledit ensemble tourbillonnaire, ladite paroi distale présentant un évidement qui est formé en regard de l'empreinte de la chambre tourbillonnaire, la profondeur maximale dudit évidement étant comprise entre 25% et 300% de la profondeur minimale de l'empreinte des canaux d'alimentation.For this purpose, and according to a first aspect, the invention proposes a push button for a system for dispensing a liquid under pressure, said push button comprising a body having a mounting well on a tube for supplying the pressurized liquid. and a housing in communication with said well, said housing being provided with an anvil around which a spray nozzle is mounted to form a fluid distribution path between said housing and a vortex assembly comprising a vortex chamber provided with a dispensing orifice and at least one supply channel of said chamber, said nozzle having a proximal wall in which is formed an impression of the swirl assembly and said anvil having a distal wall on which the proximal wall of the nozzle is in support to delimit between them said swirl assembly, said distal wall having a recess which is formed in view of the cavity of the vortex chamber, the maximum depth of said recess being between 25% and 300% of the minimum depth of the channel footprint.

Selon un deuxième aspect, l'invention propose un système de distribution d'un liquide sous pression, comprenant un dispositif de prélèvement équipé d'un tube d'amenée du liquide sous pression sur lequel le puits d'un tel bouton poussoir est monté pour permettre la pulvérisation du liquide.According to a second aspect, the invention proposes a system for dispensing a liquid under pressure, comprising a sampling device equipped with a pressurized liquid supply tube on which the well of such a push button is mounted to allow spraying of the liquid.

D'autres objets et avantages de l'invention apparaîtront dans la description qui suit, faite en référence aux figures annexées dans lesquelles :

  • la figure 1 est une vue en coupe longitudinale partielle d'un bouton poussoir selon un mode de réalisation de l'invention ;
  • la figure 2 est une vue en coupe longitudinale du corps d'actionnement du bouton poussoir selon la figure 1 ;
  • la figure 3 est une vue en coupe longitudinale d'une variante du corps d'actionnement selon la figure 2.
Other objects and advantages of the invention will appear in the description which follows, made with reference to the appended figures in which:
  • the figure 1 is a partial longitudinal sectional view of a push button according to one embodiment of the invention;
  • the figure 2 is a longitudinal sectional view of the actuating body of the push button according to the figure 1 ;
  • the figure 3 is a longitudinal sectional view of a variant of the actuating body according to the figure 2 .

En relation avec les figures, on décrit ci-dessous un bouton poussoir pour un système de distribution d'un liquide sous pression, ledit liquide pouvant être de toute nature, notamment utilisé en parfumerie, en cosmétique ou pour des traitements pharmaceutiques.In relation to the figures, a push button for a dispensing system for a pressurized liquid is described below, said liquid being of any nature, in particular used in perfumery, in cosmetics or for pharmaceutical treatments.

Le bouton poussoir comprend un corps 1 présentant une jupe annulaire d'aspect 2 qui entoure un puits 3 de montage du bouton poussoir sur un tube d'amenée du liquide sous pression. Par ailleurs, le bouton poussoir comprend une zone supérieure 4 permettant à l'utilisateur d'exercer un appui digital sur ledit bouton poussoir afin de pouvoir le déplacer axialement.The push button comprises a body 1 having an annular skirt of appearance 2 surrounding a well 3 mounting the push button on a tube for supplying the pressurized liquid. Furthermore, the push button comprises an upper zone 4 allowing the user to exert a digital support on said push button in order to move it axially.

En particulier, le système de distribution comprend un dispositif de prélèvement équipé d'un tube d'amenée du liquide sous pression (non représenté) qui est inséré de façon étanche dans le puits 3. De façon connue, le système de distribution comprend par ailleurs des moyens de montage sur un flacon contenant le liquide et des moyens de prélèvement du liquide à l'intérieur dudit flacon qui sont agencés pour alimenter le tube d'amenée en liquide sous pression.In particular, the dispensing system comprises a sampling device equipped with a tube for supplying the pressurized liquid (not shown) which is sealed in the well 3. In known manner, the dispensing system also comprises mounting means on a bottle containing the liquid and liquid collection means inside said bottle which are arranged to supply the feed tube with liquid under pressure.

Le dispositif de prélèvement peut comprendre une pompe à actionnement manuel ou, dans le cas où le liquide est conditionné sous pression dans le flacon, une valve à actionnement manuel. Ainsi, lors d'un déplacement manuel du bouton poussoir, la pompe ou la valve est actionnée pour alimenter le tube d'amenée en liquide sous pression.The sampling device may comprise a manually operated pump or, in the case where the liquid is packaged under pressure in the bottle, a manually operated valve. Thus, during a manual movement of the push button, the pump or the valve is actuated to supply the supply tube with liquid under pressure.

Le corps 1 présente également un logement annulaire 5 d'axe perpendiculaire à celui du puits de montage 3, ledit logement présentant une paroi arrière 6 sur laquelle s'étend axialement une enclume 7 cylindrique de révolution. Par ailleurs, le logement 5 est en communication avec le puits 3 par l'intermédiaire d'un orifice 8 formé dans la paroi arrière 6 afin de permettre le passage du fluide amené par le tube depuis ledit puits dans ledit logement.The body 1 also has an annular housing 5 of axis perpendicular to that of the mounting well 3, said housing having a rear wall 6 on which axially extends a cylindrical anvil 7 of revolution. Furthermore, the housing 5 is in communication with the well 3 through an orifice 8 formed in the rear wall 6 to allow the passage of the fluid supplied by the tube from said well into said housing.

Le bouton poussoir comprend également une buse de pulvérisation 9 qui est associée au corps 1 en étant montée autour de l'enclume 7 de sorte à former un chemin de distribution du fluide. Dans le mode de réalisation représenté, la buse 9 est disposée colinéairement à l'axe du logement 5 pour permettre une pulvérisation latérale du liquide relativement au corps 1 du bouton poussoir.The push button also comprises a spray nozzle 9 which is associated with the body 1 by being mounted around the anvil 7 so as to form a fluid distribution path. In the embodiment shown, the nozzle 9 is arranged collinearly with the axis of the housing 5 to allow lateral spraying of the liquid relative to the body 1 of the push button.

Dans le mode de réalisation représenté, la buse 9 présente une paroi latérale 10 cylindrique de révolution qui est fermée vers l'avant par une paroi proximale 11. L'association de la buse 9 dans le logement 5 est réalisée par emmanchement de la face externe de la paroi latérale 10, le bord arrière de ladite face externe étant en outre pourvu d'une saillie radiale 12 d'ancrage de la buse 9 dans ledit logement.In the embodiment shown, the nozzle 9 has a cylindrical side wall 10 of revolution which is closed forward by a proximal wall 11. The association of the nozzle 9 in the housing 5 is formed by fitting the outer face of the side wall 10, the rear edge of said outer face being further provided with a radial projection 12 for anchoring the nozzle 9 in said housing.

De façon avantageuse, la buse 9 et le corps 1 sont réalisés par moulage, notamment d'un matériau thermoplastique différent. En outre, le matériau formant la buse 9 présente une rigidité qui est supérieure à la rigidité du matériau formant le corps 1. Ainsi, la raideur importante de la buse 9 permet d'éviter sa déformation lors de l'emmanchement. En outre, la raideur moins importante du corps 1 permet d'une part un toucher plus qualitatif lors de l'actionnement et d'autre part une étanchéité améliorée entre le puits 3 de montage et le tube d'amenée. Enfin, la rigidité plus grande de la buse 9 permet d'améliorer la fiabilité de l'harponnage de la saillie 12 dans le logement 5 afin d'éviter le risque d'expulsion de la buse 9 lors de la distribution.Advantageously, the nozzle 9 and the body 1 are made by molding, in particular of a different thermoplastic material. In addition, the material forming the nozzle 9 has a stiffness that is greater than the stiffness of the material forming the body 1. Thus, the significant stiffness of the nozzle 9 prevents its deformation during fitting. In addition, the lower stiffness of the body 1 allows on the one hand a more qualitative touch during the actuation and on the other hand an improved seal between the mounting well 3 and the feed tube. Finally, the greater rigidity of the nozzle 9 improves the reliability of the harpooning of the projection 12 in the housing 5 to avoid the risk of expulsion of the nozzle 9 during distribution.

Dans un exemple de réalisation, le corps 1 est réalisé en polyoléfine et la buse 9 est réalisée en copolymère cyclo oléfinique (COC), en poly(oxyméthylène) ou en poly(butylène téréphtalate).In an exemplary embodiment, the body 1 is made of polyolefin and the nozzle 9 is made of cycloolefinic copolymer (COC), poly (oxymethylene) or poly (butylene terephthalate).

Le chemin de distribution comprend un conduit annulaire 13 qui est formé entre la face interne de la paroi latérale 10 de la buse 9 et la face externe de la paroi latérale 14 de l'enclume 7. Dans le mode de réalisation représenté, ce conduit annulaire 13 est alimenté en liquide sous pression provenant de l'orifice 8 par l'intermédiaire d'un conduit annulaire amont 15 qui est formé entre la paroi latérale 14 et le logement 5.The distribution path comprises an annular duct 13 which is formed between the inner face of the side wall 10 of the nozzle 9 and the outer face of the side wall 14 of the anvil 7. In the embodiment shown, this annular duct 13 is supplied with pressurized liquid from port 8 by via an upstream annular duct 15 which is formed between the side wall 14 and the housing 5.

Du coté aval, le conduit annulaire 13 alimente en liquide sous pression un ensemble tourbillonnaire comprenant une chambre tourbillonnaire 16 pourvue en son centre d'un orifice 17 de distribution ainsi qu'au moins un canal 18 d'alimentation de ladite chambre. Pour ce faire, une empreinte de l'ensemble tourbillonnaire est formée en creux sur la face arrière de la paroi proximale 11 de la buse 9 et l'enclume 7 présente une paroi distale 19 sur laquelle la paroi proximale 11 est en appui pour délimiter entre elles ledit ensemble tourbillonnaire.On the downstream side, the annular duct 13 supplies pressurized liquid to a vortex assembly comprising a vortex chamber 16 provided at its center with a dispensing orifice 17 and at least one supply channel 18 of said chamber. To do this, an impression of the vortex assembly is formed recess on the rear face of the proximal wall 11 of the nozzle 9 and the anvil 7 has a distal wall 19 on which the proximal wall 11 is supported to delimit between they said swirling assembly.

Dans le mode de réalisation représenté, l'ensemble tourbillonnaire comprend quatre canaux radiaux 18 d'alimentation qui débouchent latéralement dans la chambre tourbillonnaire 16, lesdits canaux présentant une section constante en U. Toutefois, un nombre différent de canaux 18 d'alimentation peut être prévu, avec éventuellement une orientation et/ou une géométrie modifiée, ainsi qu'un autre mode d'alimentation de la chambre tourbillonnaire 16.In the embodiment shown, the vortex assembly comprises four radial feed channels 18 which open laterally into the vortex chamber 16, said channels having a constant U-section. However, a different number of feed channels 18 may be provided. provided, possibly with an orientation and / or a modified geometry, and another mode of supply of the vortex chamber 16.

La paroi distale 19 présente un évidement 20 qui est formé en regard de l'empreinte de la chambre tourbillonnaire 16, la profondeur maximale dudit évidement étant comprise entre 25% et 300% de la profondeur minimale de l'empreinte des canaux 18 d'alimentation. Dans le mode de réalisation représenté, la profondeur des canaux 18 d'alimentation est constante et analogue à celle de la chambre tourbillonnaire 16.The distal wall 19 has a recess 20 which is formed facing the cavity of the vortex chamber 16, the maximum depth of said recess being between 25% and 300% of the minimum depth of the channel 18 footprint . In the embodiment shown, the depth of the supply channels 18 is constant and similar to that of the vortex chamber 16.

Suivant l'invention, la profondeur de l'évidement 20 est suffisante pour garantir que, après pressage de la buse 9 sur l'enclume 7, la géométrie de la paroi distale 19 qui est disposée en regard de la chambre tourbillonnaire 16 ne soit jamais convexe, et ce en tenant compte des dispersions de fabrication et d'assemblage de la buse 9 autour de l'enclume 7. En outre, la profondeur de l'évidement 20 est suffisamment limitée pour ne pas interagir de façon notable sur les caractéristiques de l'aérosol distribué, notamment en n'étant pas suffisamment grand pour former contre-chambre tourbillonnaire. Ainsi, la qualité de l'aérosol reste identique d'une fabrication à l'autre tout en conservant des cadences de fabrication et d'assemblage élevées.According to the invention, the depth of the recess 20 is sufficient to ensure that, after pressing the nozzle 9 on the anvil 7, the geometry of the distal wall 19 which is arranged facing the vortex chamber 16 is never convex, and this taking into account the manufacturing and assembly dispersions of the nozzle 9 around the anvil 7. In addition, the depth of the recess 20 is sufficiently limited not to interact significantly on the characteristics of the aerosol dispensed, in particular by not being large enough to form swirling counter-chamber. Thus, the quality of the aerosol remains identical from one manufacture to another while maintaining high manufacturing and assembly rates.

De façon préférentielle, ces effets sont obtenus lorsque la profondeur maximale de l'évidement 20 est comprise entre 50% et 150% de la profondeur minimale de l'empreinte des canaux 18 d'alimentation. En outre, l'évidement 20 peut présenter une ouverture dont la dimension est comprise entre 80% et 110% du diamètre de la chambre tourbillonnaire 16, notamment en étant sensiblement égal audit diamètre.Preferably, these effects are obtained when the maximum depth of the recess 20 is between 50% and 150% of the minimum depth of the channel footprint 18. In addition, the recess 20 may have an opening whose size is between 80% and 110% of the diameter of the vortex chamber 16, in particular being substantially equal to said diameter.

Dans le mode de réalisation représenté, l'évidement 20 présente une géométrie de révolution, plus précisément cylindrique de révolution sur les figures 1 et 2. En variante, on peut prévoir une géométrie légèrement tronconique ou semi-elliptique comme représentée sur la figure 3.In the embodiment shown, the recess 20 has a geometry of revolution, more precisely cylindrical of revolution on the Figures 1 and 2 . Alternatively, a slightly frustoconical or semi-elliptical geometry can be provided as shown in FIG. figure 3 .

Dans un exemple de réalisation, le diamètre de la chambre tourbillonnaire 16 est de 0,6 mm, les canaux 18 d'alimentation ont une profondeur de 0,33 mm pour une largeur de 0,2 mm, le diamètre de l'évidement 20 est compris entre 0,5 et 0,6 mm pour une profondeur comprise avant pressage entre 0,1 et 0,5 mm. Après pressage de la buse 9 sur l'enclume 7, la paroi distale 19 reste concave ou plate mais n'est jamais convexe.In an exemplary embodiment, the diameter of the vortex chamber 16 is 0.6 mm, the feed channels 18 have a depth of 0.33 mm for a width of 0.2 mm, the diameter of the recess 20 is between 0.5 and 0.6 mm for a depth before pressing between 0.1 and 0.5 mm. After pressing the nozzle 9 on the anvil 7, the distal wall 19 remains concave or flat but is never convex.

Claims (10)

Bouton poussoir pour un système de distribution d'un liquide sous pression, ledit bouton poussoir comprenant un corps (1) présentant un puits (3) de montage sur un tube d'amenée du liquide sous pression et un logement (5) en communication avec ledit puits, ledit logement étant pourvu d'une enclume (7) autour de laquelle une buse (9) de pulvérisation est montée de sorte à former un chemin de distribution du fluide entre ledit logement et un ensemble tourbillonnaire comprenant une chambre tourbillonnaire (16) pourvue d'un orifice (17) de distribution ainsi qu'au moins un canal (18) d'alimentation de ladite chambre, ladite buse présentant une paroi proximale (11) dans laquelle est formée une empreinte de l'ensemble tourbillonnaire et ladite enclume présentant une paroi distale (19) sur laquelle la paroi proximale (11) de la buse (9) est en appui pour délimiter entre elles ledit ensemble tourbillonnaire, ladite paroi distale présentant un évidement (20) qui est formé en regard de l'empreinte de la chambre tourbillonnaire (16), ledit bouton poussoir étant caractérisé en ce que la profondeur maximale dudit évidement est comprise entre 25% et 300% de la profondeur minimale de l'empreinte des canaux (18) d'alimentation.Push button for a system for dispensing a liquid under pressure, said push button comprising a body (1) having a well (3) for mounting on a pipe for supplying pressurized liquid and a housing (5) in communication with said well, said housing being provided with an anvil (7) around which a spray nozzle (9) is mounted to form a fluid distribution path between said housing and a vortex assembly comprising a vortex chamber (16) provided with a dispensing orifice (17) and at least one supply channel (18) for said chamber, said nozzle having a proximal wall (11) in which is formed an imprint of the swirl assembly and said anvil having a distal wall (19) on which the proximal wall (11) of the nozzle (9) abuts to define between them said swirl assembly, said distal wall having a recess (20) which is shaped d of the cavity of the vortex chamber (16), said push button being characterized in that the maximum depth of said recess is between 25% and 300% of the minimum depth of the cavity of the supply channels (18) . Bouton poussoir selon la revendication 1, caractérisé en ce que la profondeur maximale de l'évidement (20) est comprise entre 50% et 150% de la profondeur minimale de l'empreinte des canaux (18) d'alimentation.Push button according to claim 1, characterized in that the maximum depth of the recess (20) is between 50% and 150% of the minimum depth of the cavity of the supply channels (18). Bouton poussoir selon la revendication 1 ou 2, caractérisé en ce que l'ensemble tourbillonnaire comprend une pluralité de canaux radiaux (18) d'alimentation qui débouchent latéralement dans la chambre tourbillonnaire (16).Push button according to claim 1 or 2, characterized in that the swirl assembly comprises a plurality of radial supply channels (18) which open laterally into the vortex chamber (16). Bouton poussoir selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'évidement (20) présente une ouverture dont la dimension est comprise entre 80% et 110% du diamètre de la chambre tourbillonnaire (16).Push button according to any one of claims 1 to 3, characterized in that the recess (20) has an opening whose dimension is between 80% and 110% of the diameter of the vortex chamber (16). Bouton poussoir selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'évidement (20) présente une géométrie de révolution.Push button according to any one of claims 1 to 4, characterized in that the recess (20) has a geometry of revolution. Bouton poussoir selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le matériau formant la buse (9) présente une rigidité qui est supérieure à la rigidité du matériau formant le corps (1).Push button according to any one of claims 1 to 5, characterized in that the material forming the nozzle (9) has a rigidity which is greater than the stiffness of the material forming the body (1). Bouton poussoir selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la buse (9) et l'enclume (7) présentent chacune une paroi latérale (10, 14) entre lesquelles un conduit annulaire (13) du chemin de distribution est formé, ledit conduit étant en communication de part et d'autre respectivement avec le puits (3) et avec les canaux (18) d'alimentation.Push button according to any one of claims 1 to 6, characterized in that the nozzle (9) and the anvil (7) each have a side wall (10, 14) between which an annular duct (13) of the distribution is formed, said conduit being in communication on each side respectively with the well (3) and with the channels (18) of supply. Bouton poussoir selon la revendication 7, caractérisé en ce que la face externe de la paroi latérale (14) de la buse (9) est emmanchée dans le logement (5).Push button according to claim 7, characterized in that the outer face of the side wall (14) of the nozzle (9) is fitted into the housing (5). Bouton poussoir selon la revendication 8, caractérisé en ce que le bord arrière de la face externe est pourvu d'une saillie radiale (15) d'ancrage de la buse (9) dans le logement (5).Push button according to claim 8, characterized in that the rear edge of the outer face is provided with a radial projection (15) for anchoring the nozzle (9) in the housing (5). Système de distribution d'un liquide sous pression, comprenant un dispositif de prélèvement équipé d'un tube d'amenée du liquide sous pression sur lequel le puits (3) d'un bouton poussoir selon l'une quelconque des revendications 1 à 9 est monté pour permettre la pulvérisation du liquide.A system for dispensing a liquid under pressure, comprising a sampling device equipped with a pressurized liquid supplying tube on which the well (3) of a pushbutton according to any one of claims 1 to 9 is mounted to allow spraying of the liquid.
EP20100290285 2009-06-04 2010-06-01 Push-button for a pressurised liquid distribution system Active EP2258484B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0902713A FR2946326B1 (en) 2009-06-04 2009-06-04 PUSH BUTTON FOR A PRESSURIZED LIQUID DISTRIBUTION SYSTEM

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EP2258484A1 true EP2258484A1 (en) 2010-12-08
EP2258484B1 EP2258484B1 (en) 2014-11-05

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US (1) US8640977B2 (en)
EP (1) EP2258484B1 (en)
CN (1) CN101905203B (en)
BR (1) BRPI1001643B1 (en)
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FR (1) FR2946326B1 (en)

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FR3019475B1 (en) * 2014-04-08 2021-10-15 Albea Le Treport DISTRIBUTION MODULE OF A PRODUCT INTENDED TO BE MOUNTED ON A DUCT SUPPLIED UNDER PRESSURE OF THE SAID PRODUCT
US10370177B2 (en) * 2016-11-22 2019-08-06 Summit Packaging Systems, Inc. Dual component insert with uniform discharge orifice for fine mist spray
WO2019191600A1 (en) * 2018-03-30 2019-10-03 Rea.Deeming Beauty, Inc. Dba Beautyblender Container and dispenser system and apparatus
US10940493B2 (en) * 2018-07-26 2021-03-09 S. C. Johnson & Son, Inc. Actuator and nozzle insert for dispensing systems
CN109693884A (en) * 2019-01-29 2019-04-30 中山市美捷时包装制品有限公司 A kind of annular aerosol actuator

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BRPI1001643A2 (en) 2011-08-02
CN101905203B (en) 2014-09-24
US8640977B2 (en) 2014-02-04
ES2529493T3 (en) 2015-02-20
FR2946326B1 (en) 2011-08-05
BRPI1001643B1 (en) 2019-10-08
FR2946326A1 (en) 2010-12-10
US20100308136A1 (en) 2010-12-09
CN101905203A (en) 2010-12-08
EP2258484B1 (en) 2014-11-05

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