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EP1753542B1 - Simplified airless dispensing pump for liquid products - Google Patents

Simplified airless dispensing pump for liquid products Download PDF

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Publication number
EP1753542B1
EP1753542B1 EP05775327A EP05775327A EP1753542B1 EP 1753542 B1 EP1753542 B1 EP 1753542B1 EP 05775327 A EP05775327 A EP 05775327A EP 05775327 A EP05775327 A EP 05775327A EP 1753542 B1 EP1753542 B1 EP 1753542B1
Authority
EP
European Patent Office
Prior art keywords
button
pump according
cell
bore
rod
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.)
Active
Application number
EP05775327A
Other languages
German (de)
French (fr)
Other versions
EP1753542A1 (en
Inventor
Richard Bloc
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
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Publication of EP1753542A1 publication Critical patent/EP1753542A1/en
Application granted granted Critical
Publication of EP1753542B1 publication Critical patent/EP1753542B1/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • 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
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1033—Pumps having a pumping chamber with a deformable wall the deformable wall, the inlet and outlet valve elements being integrally formed, e.g. moulded
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow

Definitions

  • the present invention relates to a pump for dispensing liquid products without air intake and more particularly low doses of cosmetics, perfumes or pharmaceuticals.
  • Distributors of this type such as the one described in US 3,752,366 , comprise a push-button provided with a spray nozzle which communicates with a network of channels arranged locally on the wall of a frustoconical bore and a body provided at its upper part with a proportioning chamber with an elastically deformable wall and at its lower part, an intake flap.
  • the various functions of the pump such as, in particular, sealing, compression, the elastic return of the piston, the dosage, are provided by separate parts that are often made with different materials, some of which have proved to be incompatible with the products, is likely to degrade the properties of the product during a residence time or prolonged contact with it.
  • the present invention aims to solve these problems satisfactorily.
  • this pump comprises an axial rod, carried by said button which extends through said body and whose lower part, provided with at least one longitudinal groove, is slidably engaged in a supply duct extending said cell forming the inlet valve.
  • the upper edge of said duct is provided with an annular sealing lip coming into contact with said rod.
  • said rod is made in one piece with said button.
  • said inclined face of the flange of the cell forms with the wall of the bore of the button, a peripheral exhaust groove delimited radially by a flexible lip forming a valve.
  • said rod is an independent piece provided, at its upper part, with a central cavity intended to receive a centering pin carried by said button and a sealing ring bearing against the inner periphery of the flange of said cell forming an exhaust valve.
  • said ring is provided with a lower rib bearing tightly against an annular flange formed on the inner periphery of said collar.
  • said ring carries, preferably, teeth cooperating with notches formed on the inner wall of the bore of the button.
  • said body comprises, at its lower part, a socket for attachment to a tank.
  • said bushing comprises a support shoulder on said tank and at least one lug forming a bottom stop for said collar during the deformation of said cell.
  • said button comprises a lateral skirt inside which said body is housed.
  • said cell is made in the form of a cylindrical bag with bellows.
  • said body is extended downwards by a plug tube connected to said intake valve.
  • the pump of the invention allows to group the functional elements on a very small number of parts or even on the single pump body.
  • the axial rod provides valve function for both the intake and exhaust of the product, which ensures a high level of sealing and a good synchronization of the opening and closing phases.
  • This pump is, in addition, devoid of metal element and can be made with a single plastic material and compatible with the biological and / or chemical properties of the product.
  • this assembly can be easily automated without the need to index the parts relative to each other.
  • the pump shown in the figures is intended for distribution without air intake, perfume samples, cosmetics or even low doses of liquid pharmaceutical products.
  • a tank R which can be glass or plastic on which is mounted the pump of the invention.
  • This pump comprises a push-button 1 provided with a spray nozzle P.
  • the nozzle P comprises an ejection orifice which communicates with a network of channels C formed locally on the wall of a frustoconical internal bore 10 visible in particular on the figure 3B .
  • the pump of the invention also comprises a body 2 housed inside a side skirt 11 carried by the button 1.
  • This body is provided, at its upper part, with a dosing cell 20 whose wall is elastically deformable so that it can return to its original shape after being compressed.
  • the cell 20 is made in the form of a cylindrical gusseted pocket equipped, on the one hand in the lower part, with an inlet valve and surmounted, on the other hand, by a rigid collar 23 for fixing in the bore 10 of the button 1.
  • the flange 23 has, on its outer periphery, an inclined face 23a which delimits, facing the network of channels C, a swirl chamber opening out through the nozzle P.
  • the flange 23 has, on its inner periphery, a passage for the product of the cell 20 towards the vortex chamber, consisting of at least one upper peripheral portion 12.
  • the intake valve consists of an axial rod 3 carried by the button 1 and which extends through the body 2.
  • the rod 3 moves with the button 1.
  • the lower part of the rod 3 is provided with at least one longitudinal groove 31 and is slidably engaged in a supply conduit 21 extending the cell 20 downwards.
  • the conduit 21 is connected to a gripping tube 4 whose lower end is immersed in the product.
  • the upper edge of the duct 21 is provided with an annular sealing lip 21a radially in contact with the rod 3 above the level of the groove 31.
  • the body 2 also comprises, at its lower part, a socket 22 for fixing in or on the neck of the tank R.
  • the bushing 22 is made either in the form of a plug intended to be introduced with radial clamping inside the neck ( Figures 2 and 3 half-views straight), either in the form of a capsule coming snap on the neck from the outside ( Figures 2 and 3 left half-views).
  • the bushing 22 has a support shoulder 24 on the neck of the tank R and at least one lug 25 forming a low stop for the collar 23 during the deformation of the cell 20 (see FIG. figure 4D ).
  • the side skirt 11 of the button 1 has, on its inner wall, a peripheral projection 11a ensuring the snapping and retaining the shoulder 24 and thus the maintenance of the body 2 inside the button 1.
  • the rod 3 is made in one piece with the button 1.
  • the inclined face 23a of the flange 23 forms, with the wall of the bore 10, a peripheral outlet groove of the product delimited radially by a flexible lip 23b forming a valve.
  • the resistance of the lip 23b yields, during dispensing, when, by deformation of the cell 20, the pressure within the product reaches a certain threshold. The product is then expelled to the vortex chamber via the peripheral groove.
  • the rod 3 is formed as an independent piece provided, at its upper part, with a central cavity 30 intended to receive, with a slight axial clearance, a centering pin 13 carried by the button 1.
  • the rod 3 also carries a sealing ring 32 forming an exhaust valve.
  • the ring 32 comes into sealing engagement, at the bottom, against the inner periphery of the collar 23 which has, for this purpose, a flange 23c visible in particular on the figure 3A .
  • the lower face of the ring 32 will be provided with an annular rib 32a which ensures contact with the flange 21b.
  • the ring 32 carries teeth 33, here three in number, with beveled end 33a cooperating with corresponding notches 14 formed on the inner wall of the bore 10.
  • the notches 14 have an inclined outer facet allowing the guided movement of the end of the teeth 33 when pressing the button.
  • the teeth 33 will have a capacity for elastic deformation or elastic flexion in the stress range considered.
  • FIGS. 4A to 4E applied to the variant of figures 3 and 3A .
  • the Figure 4A corresponds to the distributor's rest position.
  • the inlet valve is open because the groove 31 of the rod 3 is opposite the lip 21a thus providing communication between the cell 20, the conduit 21 and the tube 4.
  • the Figure 4B corresponds to the initial phase of the distribution, the user beginning to exert manual pressure on the upper face of the button 1 to compress the cell 20.
  • the upward stroke of the rod 3 and thus the opening flow of the exhaust valve can be increased, if necessary giving the teeth 33 a certain flexibility. Rapidly, the rod 3 is depressed at least until the upper edge of the groove 31 passes below the level of the lip 21a thus closing the inlet valve and isolating a dose of product in the cell 20.
  • the figure 4C corresponds to the spraying phase of the product dose.
  • buttons 1 Continuing manual support on the button 1 causes the deformation of the cell 20 and the compression of the product which escapes to the outside via the exhaust valve by exerting a thrust on the lower face of the ring 23, then via the upper peripheral passage 12, the channel network C, the swirl chamber and finally the nozzle P.
  • the figure 4D corresponds to the end of the spraying.
  • the figure 4E corresponds to the return of the pump to its rest position. Releasing the pressure on the button 1 causes the cell 20 to relax in the manner of a return spring.
  • This expansion of the cell 20 causes the rise of the rod 3 with holding the exhaust valve in the closed position and suction of the product in the tank R via the tube 4 and the conduit 21.
  • the filling of the metering cell 20 is carried out by suction of product as soon as the groove 31 exceeds the level of the lip 21a of the inlet valve and until abutment of the projection 11a of the button 1 against the shoulder 24 of the socket 22 of the body 2.

Landscapes

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

Abstract

An airless dispensing pump for liquid products including a push button with a spray nozzle which communicates with a network of channels that is provided locally on the wall of an internal truncated-cone-shaped bore, and a housing. An upper part of the housing includes a dosing cell having an elastically-deformable wall, which is equipped with an intake valve and topped with a rigid collar for fixing same inside the bore of the aforementioned button. Moreover, the outer periphery of the collar has an inclined face which defines a swirl chamber opposite the above-mentioned network, while the inner periphery thereof is quipped with a passage to the chamber.

Description

La présente invention concerne une pompe pour distributeur de produits liquides sans reprise d'air et plus particulièrement de faibles doses de produits cosmétiques, de parfums ou de produits pharmaceutiques.The present invention relates to a pump for dispensing liquid products without air intake and more particularly low doses of cosmetics, perfumes or pharmaceuticals.

Les distributeurs de ce type comme celui décrit dans le US 3 752 366 , comprennent un bouton-poussoir pourvu d'une buse de pulvérisation qui communique avec un réseau de canaux ménagé localement sur la paroi d'un alesage tronconique et un corps pourvu à sa partie supérieure, d'une chambre de dosage à paroi élastiquement déformable et à sa partie inférieure, d'un clapet d'admission.Distributors of this type, such as the one described in US 3,752,366 , comprise a push-button provided with a spray nozzle which communicates with a network of channels arranged locally on the wall of a frustoconical bore and a body provided at its upper part with a proportioning chamber with an elastically deformable wall and at its lower part, an intake flap.

Cependant, les différentes fonctions de la pompe telles que notamment, Pétanchéité, la compression, le rappel élastique du piston, le dosage, sont assurées par des pièces distinctes qui sont souvent réalisées avec différentes matières dont certaines se sont révélées soit incompatibles avec les produits, soit de nature à dégrader les propriétés du produit pendant un temps de séjour ou de contact prolongé avec lui.However, the various functions of the pump such as, in particular, sealing, compression, the elastic return of the piston, the dosage, are provided by separate parts that are often made with different materials, some of which have proved to be incompatible with the products, is likely to degrade the properties of the product during a residence time or prolonged contact with it.

En outre, tant la fabrication que l'assemblage de ces nombreuses pièces sont des opérations délicates, en particulier lorsque leurs dimensions sont petites.In addition, both the manufacture and assembly of these many parts are delicate operations, especially when their dimensions are small.

La présente invention a pour but de résoudre ces problèmes de manière satisfaisante.The present invention aims to solve these problems satisfactorily.

Ce but est atteint, selon l'invention, au moyen d'une pompe caractérisée en ce qu'elle comprend :

  • un bouton-poussoir comportant une buse de pulvérisation qui communique avec un réseau de canaux ménagé localement sur la paroi d'un alésage interne tronconique et,
  • un corps pourvu, à sa partie supérieure, d'une cellule de dosage à paroi élastiquement déformable équipée, d'une part, d'un clapet d'admission et surmontée, d'autre part, d'une collerette rigide de fixation dans l'alésage dudit bouton, ladite collerette présentant, sur son pourtour extérieur, une face inclinée qui délimite en regard dudit réseau, une chambre tourbillonnaire et offrant, sur son pourtour intérieur, un passage vers ladite chambre.
This object is achieved, according to the invention, by means of a pump characterized in that it comprises:
  • a push-button comprising a spray nozzle which communicates with a network of channels arranged locally on the wall of a frustoconical internal bore and,
  • a body provided, at its upper part, with a resiliently-deformable wall-type dosing cell equipped, on the one hand, with an inlet valve and surmounted on the other hand by a rigid fastening flange in the upper part; boring said button, said collar having, on its outer periphery, an inclined face which delimits opposite said network, a swirl chamber and providing, on its inner periphery, a passage to said chamber.

Selon l'invention, cette pompe comprend une tige axiale, portée par ledit bouton qui s'étend au travers dudit corps et dont la partie inférieure, pourvue d'au moins une saignée longitudinale, est engagée de manière coulissante dans un conduit d'alimentation prolongeant ladite cellule en formant le clapet d'admission.According to the invention, this pump comprises an axial rod, carried by said button which extends through said body and whose lower part, provided with at least one longitudinal groove, is slidably engaged in a supply duct extending said cell forming the inlet valve.

Selon une caractéristique avantageuse, le bord supérieur dudit conduit est pourvu d'une lèvre annulaire d'étanchéité venant au contact de ladite tige.According to an advantageous characteristic, the upper edge of said duct is provided with an annular sealing lip coming into contact with said rod.

Selon une première variante, ladite tige est réalisée d'une seule pièce avec ledit bouton. Dans ce cas, ladite face inclinée de la collerette de la cellule forme avec la paroi de l'alésage du bouton, une gorge périphérique d'échappement délimitée radialement par une lèvre souple formant valve.According to a first variant, said rod is made in one piece with said button. In this case, said inclined face of the flange of the cell forms with the wall of the bore of the button, a peripheral exhaust groove delimited radially by a flexible lip forming a valve.

Selon une autre variante, ladite tige est une pièce indépendante pourvue, à sa partie supérieure, d'une cavité centrale destinée à recevoir un pion de centrage porté par ledit bouton et d'une couronne d'étanchéité venant en appui contre le pourtour intérieur de la collerette de ladite cellule en formant un clapet d'échappement.According to another variant, said rod is an independent piece provided, at its upper part, with a central cavity intended to receive a centering pin carried by said button and a sealing ring bearing against the inner periphery of the flange of said cell forming an exhaust valve.

Avantageusement, ladite couronne est pourvue d'une nervure inférieure venant en appui étanche contre une bride annulaire réalisée sur le pourtour intérieur de ladite collerette.Advantageously, said ring is provided with a lower rib bearing tightly against an annular flange formed on the inner periphery of said collar.

Dans cette variante, ladite couronne porte, de préférence, des dents coopérant avec des crans réalisés sur la paroi interne de l'alésage du bouton.In this variant, said ring carries, preferably, teeth cooperating with notches formed on the inner wall of the bore of the button.

Selon encore une autre caractéristique, ledit corps comporte, à sa partie inférieure, une douille pour la fixation sur un réservoir.According to yet another characteristic, said body comprises, at its lower part, a socket for attachment to a tank.

De préférence, ladite douille comporte un épaulement de support sur ledit réservoir et au moins un ergot formant butée basse pour ladite collerette lors de la déformation de ladite cellule.Preferably, said bushing comprises a support shoulder on said tank and at least one lug forming a bottom stop for said collar during the deformation of said cell.

Selon une autre caractéristique, ledit bouton comporte une jupe latérale à l'intérieur de laquelle est logé ledit corps.According to another characteristic, said button comprises a lateral skirt inside which said body is housed.

Selon une variante, ladite cellule est réalisée sous forme d'une poche cylindrique à soufflets.According to a variant, said cell is made in the form of a cylindrical bag with bellows.

Il est également possible de prévoir que ledit corps se prolonge vers le bas par un tube de prise raccordé audit clapet d'admission.It is also possible to provide that said body is extended downwards by a plug tube connected to said intake valve.

La pompe de l'invention permet de regrouper les éléments fonctionnels sur un nombre très restreint de pièces voire sur le seul corps de pompe.The pump of the invention allows to group the functional elements on a very small number of parts or even on the single pump body.

La tige axiale assure là fonction de clapet tant pour l'admission que pour l'échappement du produit, ce qui garantit un niveau élevé d'étanchéité ainsi qu'une bonne synchronisation des phases d'ouverture et de fermeture.The axial rod provides valve function for both the intake and exhaust of the product, which ensures a high level of sealing and a good synchronization of the opening and closing phases.

Cette pompe est, en outre, dépourvue d'élément métallique et peut être réalisée avec une matière plastique unique et compatible avec les propriétés biologique et/ou chimique du produit.This pump is, in addition, devoid of metal element and can be made with a single plastic material and compatible with the biological and / or chemical properties of the product.

Au surplus, l'assemblage du faible nombre de pièces constitutives et, en particulier, l'accrochage du bouton sur le corps, est possible en particulier grâce à la coopération entre les ergots formant armatures de rigidification et la collerette.In addition, the assembly of the small number of component parts and, in particular, the hooking of the button on the body, is possible in particular thanks to the cooperation between the pins forming stiffening frames and the collar.

De plus, du fait de la symétrie de révolution du corps et de la tige, cet assemblage peut être aisément automatisé sans qu'il soit nécessaire d'indexer les pièces l'une par rapport à l'autre.In addition, because of the symmetry of revolution of the body and the rod, this assembly can be easily automated without the need to index the parts relative to each other.

L'invention sera mieux comprise à la lecture de la description qui va suivre en référence aux dessins sur lesquels :

  • La figure 1 représente une vue de profil d'un mode de réalisation de la pompe de l'invention montée sur un réservoir de produit,
  • Les figures 2 et 3 représentent des vues en coupe de deux variantes de réalisation de la pompe de l'invention,
  • La figure 3A représente une vue en éclaté de la variante de la figure 3,
  • La figure 3B représente une vue de détail et de dessous du bouton-poussoir utilisé dans la variante de la figure 3,
  • Les figures 4A à 4E représentent les phases successives du fonctionnement de la pompe de la figure 3.
The invention will be better understood on reading the description which follows with reference to the drawings in which:
  • The figure 1 represents a profile view of an embodiment of the pump of the invention mounted on a product reservoir,
  • The Figures 2 and 3 represent sectional views of two alternative embodiments of the pump of the invention,
  • The figure 3A represents an exploded view of the variant of the figure 3 ,
  • The figure 3B represents a detail and bottom view of the push button used in the variant of the figure 3 ,
  • The FIGS. 4A to 4E represent the successive phases of the operation of the pump of the figure 3 .

La pompe représentée sur les figures est destinée à la distribution sans reprise d'air, d'échantillons de parfums, de produits cosmétiques ou encore à de faibles doses de produits pharmaceutiques liquides.The pump shown in the figures is intended for distribution without air intake, perfume samples, cosmetics or even low doses of liquid pharmaceutical products.

Ces produits sont conditionnés dans un réservoir R qui peut être en verre ou en matière plastique sur lequel est montée la pompe de l'invention.These products are packaged in a tank R which can be glass or plastic on which is mounted the pump of the invention.

Cette pompe comprend un bouton-poussoir 1 pourvu d'une buse de pulvérisation P. La buse P comporte un orifice d'éjection qui communique avec un réseau de canaux C ménagé localement sur la paroi d'un alésage interne tronconique 10 visible notamment sur la figure 3B.This pump comprises a push-button 1 provided with a spray nozzle P. The nozzle P comprises an ejection orifice which communicates with a network of channels C formed locally on the wall of a frustoconical internal bore 10 visible in particular on the figure 3B .

La pompe de l'invention comprend également un corps 2 logé à l'intérieur d'une jupe latérale 11 portée par le bouton 1. Ce corps est pourvu, à sa partie supérieure, d'une cellule de dosage 20 dont la paroi est élastiquement déformable de façon à pouvoir retrouver sa forme initiale après avoir été comprimée.The pump of the invention also comprises a body 2 housed inside a side skirt 11 carried by the button 1. This body is provided, at its upper part, with a dosing cell 20 whose wall is elastically deformable so that it can return to its original shape after being compressed.

Dans les variantes représentées ici sur les figures, la cellule 20 est réalisée sous forme d'une poche cylindrique à soufflets équipée, d'une part en partie basse, d'un clapet d'admission et surmontée, d'autre part, d'une collerette rigide 23 de fixation dans l'alésage 10 du bouton 1.In the variants represented here in the figures, the cell 20 is made in the form of a cylindrical gusseted pocket equipped, on the one hand in the lower part, with an inlet valve and surmounted, on the other hand, by a rigid collar 23 for fixing in the bore 10 of the button 1.

La collerette 23 présente, sur son pourtour extérieur, une face inclinée 23a qui délimite, en regard du réseau de canaux C, une chambre tourbillonnaire débouchant à l'extérieur via la buse P.The flange 23 has, on its outer periphery, an inclined face 23a which delimits, facing the network of channels C, a swirl chamber opening out through the nozzle P.

Par ailleurs, la collerette 23 offre, sur son pourtour intérieur, un passage pour le produit de la cellule 20 vers la chambre tourbillonnaire, constitué d' au moins une portion périphérique supérieure 12.Furthermore, the flange 23 has, on its inner periphery, a passage for the product of the cell 20 towards the vortex chamber, consisting of at least one upper peripheral portion 12.

Le clapet d'admission est constitué d'une tige axiale 3 portée par le bouton 1 et qui s'étend au travers du corps 2. La tige 3 se déplace avec le bouton 1.The intake valve consists of an axial rod 3 carried by the button 1 and which extends through the body 2. The rod 3 moves with the button 1.

A cet effet, la partie inférieure de la tige 3 est pourvue d'au moins une saignée longitudinale 31 et est engagée de manière coulissante dans un conduit d'alimentation 21 prolongeant la cellule 20 vers le bas.For this purpose, the lower part of the rod 3 is provided with at least one longitudinal groove 31 and is slidably engaged in a supply conduit 21 extending the cell 20 downwards.

Dans le mode de réalisation des figures, le conduit 21 est raccordé à un tube de prise 4 dont l'extrémité inférieure est plongée dans le produit.In the embodiment of the figures, the conduit 21 is connected to a gripping tube 4 whose lower end is immersed in the product.

Le bord supérieur du conduit 21 est pourvu d'une lèvre annulaire d'étanchéité 21a venant radialement au contact de la tige 3 au-dessus du niveau de la saignée 31.The upper edge of the duct 21 is provided with an annular sealing lip 21a radially in contact with the rod 3 above the level of the groove 31.

Le corps 2 comporte aussi, à sa partie inférieure, une douille 22 pour la fixation dans ou sur le col du réservoir R.The body 2 also comprises, at its lower part, a socket 22 for fixing in or on the neck of the tank R.

A cet effet, la douille 22 est réalisée soit sous forme d'un bouchon destiné à être introduit avec serrage radial à l'intérieur du col (figures 2 et 3 demi-vues droites), soit sous forme d'une capsule venant s'encliqueter sur le col par l'extérieur (figures 2 et 3 demi-vues gauches).For this purpose, the bushing 22 is made either in the form of a plug intended to be introduced with radial clamping inside the neck ( Figures 2 and 3 half-views straight), either in the form of a capsule coming snap on the neck from the outside ( Figures 2 and 3 left half-views).

Dans tous les cas, la douille 22 comporte un épaulement de support 24 sur le col du réservoir R et au moins un ergot 25 formant une butée basse pour la collerette 23 lors de la déformation de la cellule 20 (voir figure 4D).In all cases, the bushing 22 has a support shoulder 24 on the neck of the tank R and at least one lug 25 forming a low stop for the collar 23 during the deformation of the cell 20 (see FIG. figure 4D ).

La jupe latérale 11 du bouton 1 présente, sur sa paroi interne, une saillie périphérique 11a assurant l'encliquetage et la retenue de l'épaulement 24 et donc le maintien du corps 2 à l'intérieur du bouton 1.The side skirt 11 of the button 1 has, on its inner wall, a peripheral projection 11a ensuring the snapping and retaining the shoulder 24 and thus the maintenance of the body 2 inside the button 1.

Dans la variante de la figure 2, la tige 3 est réalisée d'une seule pièce avec le bouton 1. Dans ce cas, la face inclinée 23a de la collerette 23 forme, avec la paroi de l'alésage 10, une gorge périphérique d'échappement du produit délimitée radialement par une lèvre souple 23b formant valve.In the variant of the figure 2 , the rod 3 is made in one piece with the button 1. In this case, the inclined face 23a of the flange 23 forms, with the wall of the bore 10, a peripheral outlet groove of the product delimited radially by a flexible lip 23b forming a valve.

La résistance de la lèvre 23b cède, lors de la distribution, quand, par déformation de la cellule 20, la pression au sein du produit atteint un certain seuil. Le produit est alors expulsé vers la chambre tourbillonnaire via la gorge périphérique.The resistance of the lip 23b yields, during dispensing, when, by deformation of the cell 20, the pressure within the product reaches a certain threshold. The product is then expelled to the vortex chamber via the peripheral groove.

Dans la variante de la figure 3, la tige 3 est réalisée sous forme d'une pièce indépendante pourvue, à sa partie supérieure, d'une cavité centrale 30 destinée à recevoir, avec un léger jeu axial, un pion de centrage 13 porté par le bouton 1. La tige 3 porte également une couronne d'étanchéité 32 formant un clapet d'échappement.In the variant of the figure 3 , the rod 3 is formed as an independent piece provided, at its upper part, with a central cavity 30 intended to receive, with a slight axial clearance, a centering pin 13 carried by the button 1. The rod 3 also carries a sealing ring 32 forming an exhaust valve.

La couronne 32 vient en appui étanche, dans le bas, contre le pourtour intérieur de la collerette 23 qui présente, à cet effet, une bride 23c visible notamment sur la figure 3A. De préférence, la face inférieure de la couronne 32 sera pourvue d'une nervure annulaire 32a qui assure le contact avec la bride 21b.The ring 32 comes into sealing engagement, at the bottom, against the inner periphery of the collar 23 which has, for this purpose, a flange 23c visible in particular on the figure 3A . Preferably, the lower face of the ring 32 will be provided with an annular rib 32a which ensures contact with the flange 21b.

La couronne 32 porte des dents 33, ici au nombre de trois, à extrémité biseautée 33a coopérant avec des crans correspondants 14 réalisés sur la paroi interne de l'alésage 10. Les crans 14 ont une facette extérieure inclinée permettant le déplacement guidé de l'extrémité des dents 33 lors de l'appui sur le bouton.The ring 32 carries teeth 33, here three in number, with beveled end 33a cooperating with corresponding notches 14 formed on the inner wall of the bore 10. The notches 14 have an inclined outer facet allowing the guided movement of the end of the teeth 33 when pressing the button.

Le cas échéant, les dents 33 posséderont une capacité de déformation élastique ou de flexion élastique dans la plage d'effort considérée.Where appropriate, the teeth 33 will have a capacity for elastic deformation or elastic flexion in the stress range considered.

Le fonctionnement de la pompe de l'invention va maintenant être décrit en référence aux figures 4A à 4E appliquées à la variante des figures 3 et 3A.The operation of the pump of the invention will now be described with reference to FIGS. 4A to 4E applied to the variant of figures 3 and 3A .

La figure 4A correspond à la position de repos du distributeur.The Figure 4A corresponds to the distributor's rest position.

Dans cette position, le conditionnement du produit est complètement étanche, la couronne 32 reposant par sa nervure inférieure 32a en appui étanche contre la bride intérieure 23c de la collerette 23 de façon à obturer la cellule 20 en partie haute.In this position, the packaging of the product is completely sealed, the ring 32 resting by its lower rib 32a sealingly bears against the inner flange 23c of the collar 23 so as to close the cell 20 at the top.

Parallèlement, dans le bas, le clapet d'admission est ouvert du fait que la saignée 31 de la tige 3 se trouve en regard de la lèvre 21 a en ménageant ainsi une communication entre la cellule 20, le conduit 21 et le tube 4.Meanwhile, at the bottom, the inlet valve is open because the groove 31 of the rod 3 is opposite the lip 21a thus providing communication between the cell 20, the conduit 21 and the tube 4.

Toutefois, le produit contenu dans la cellule 20 reste en suspension.However, the product contained in cell 20 remains in suspension.

La figure 4B correspond à la phase initiale de la distribution, l'utilisateur commençant à exercer une pression manuelle sur la face supérieure du bouton 1 pour comprimer la cellule 20.The Figure 4B corresponds to the initial phase of the distribution, the user beginning to exert manual pressure on the upper face of the button 1 to compress the cell 20.

Les premiers effets résultant de cet effort se traduisent par la descente du bouton 1, le rattrapage du jeu axial entre le pion 13 et la cavité 30 et le glissement des faces biseautées 33a sur les crans 14. Cette phase se poursuit jusqu'à ce que les dents 33 et/ou l'extrémité supérieure de la tige 3 viennent en butée dans le haut contre le fond de l'alésage 10. Ce déplacement de la tige 3 relativement à la collerette 23 provoque l'ouverture du clapet d'échappement en écartant la nervure inférieure 32a de la bride 23c.The first effects resulting from this effort result in the descent of the button 1, the catching of the axial clearance between the pin 13 and the cavity 30 and the sliding of the bevelled faces 33a on the notches 14. This phase continues until the teeth 33 and / or the upper end of the rod 3 abut at the top against the bottom of the bore 10. This displacement of the rod 3 relative to the flange 23 causes the opening of the exhaust valve in spreading the lower rib 32a of the flange 23c.

La course ascendante de la tige 3 et donc le débit d'ouverture du clapet d'échappement peuvent être augmentés, si nécessaire en donnant aux dents 33 une certaine flexibilité. Rapidement, la tige 3 se trouve enfoncée au moins jusqu'à ce que le bord supérieur de la saignée 31 passe sous le niveau de la lèvre 21a en fermant ainsi le clapet d'admission et en isolant une dose de produit dans la cellule 20.The upward stroke of the rod 3 and thus the opening flow of the exhaust valve can be increased, if necessary giving the teeth 33 a certain flexibility. Rapidly, the rod 3 is depressed at least until the upper edge of the groove 31 passes below the level of the lip 21a thus closing the inlet valve and isolating a dose of product in the cell 20.

La figure 4C correspond à la phase de pulvérisation de la dose de produit.The figure 4C corresponds to the spraying phase of the product dose.

La poursuite de l'appui manuel sur le bouton 1 entraîne la déformation de la cellule 20 et la compression du produit qui s'échappe à l'extérieur via le clapet d'échappement en exerçant une poussée sur la face inférieure de la couronne 23, puis via le passage périphérique supérieur 12, le réseau de canaux C, la chambre tourbillonnaire et enfin la buse P.Continuing manual support on the button 1 causes the deformation of the cell 20 and the compression of the product which escapes to the outside via the exhaust valve by exerting a thrust on the lower face of the ring 23, then via the upper peripheral passage 12, the channel network C, the swirl chamber and finally the nozzle P.

La figure 4D correspond à la fin de la pulvérisation.The figure 4D corresponds to the end of the spraying.

La face inférieure de la collerette 23 de la cellule 20 se trouve alors en butée dans le bas contre les ergots 25 ce qui correspond à la limite de déformation de ladite cellule et à un volume de produit expulsé équivalent à une dose. Conjointement, le clapet d'échappement se referme.The lower face of the flange 23 of the cell 20 is then abutted in the bottom against the lugs 25 which corresponds to the deformation limit of said cell and to a volume of expelled product equivalent to a dose. At the same time, the exhaust valve closes.

La figure 4E correspond au retour de la pompe vers sa position de repos. Le relâchement de la pression sur le bouton 1 provoque la détente de la cellule 20 à la manière d'un ressort de rappel.The figure 4E corresponds to the return of the pump to its rest position. Releasing the pressure on the button 1 causes the cell 20 to relax in the manner of a return spring.

Cette détente de la cellule 20 entraîne la remontée de la tige 3 avec maintien du clapet d'échappement en position d'obturation et aspiration du produit dans le réservoir R via le tube 4 et le conduit 21.This expansion of the cell 20 causes the rise of the rod 3 with holding the exhaust valve in the closed position and suction of the product in the tank R via the tube 4 and the conduit 21.

Le remplissage de la cellule de dosage 20 s'effectue par aspiration de produit dès que la saignée 31 dépasse le niveau de la lèvre 21a du clapet d'admission et jusqu'à mise en butée de la saillie 11a du bouton 1 contre l'épaulement 24 de la douille 22 du corps 2.The filling of the metering cell 20 is carried out by suction of product as soon as the groove 31 exceeds the level of the lip 21a of the inlet valve and until abutment of the projection 11a of the button 1 against the shoulder 24 of the socket 22 of the body 2.

Claims (12)

  1. Pump for a liquid product dispenser with no air intake, characterised in that it comprises:
    - a push button (1) comprising a spraying nozzle (P) which communicates with a network of channels arranged locally on the wall of a tapered internal bore (10),
    - a body (2) provided at the top with a dosage cell (20) with an elastically deformable wall equipped, on the one hand with an intake valve and topped, on the other hand, by a rigid flange ring (23) for attachment in the bore (10) of said button, said flange ring (23) having, on its outer perimeter, a tilted face (23a) which delimits a whirl chamber opposite said network and offers, on its inner perimeter, a passage towards said chamber, and
    - an axial rod (3) supported by said button (1) which extends through said body (2) and whose bottom part, provided with at least one longitudinal groove (31), is slidingly inserted in an intake conduit (21) extending said cell (20) by forming the intake valve.
  2. Pump according to claim 1, characterised in that the top edge of said conduit is provided with an annular sealing lip in contact with said rod.
  3. Pump according to claim 1 or 2, characterised in that said rod (3) is formed integral with said button (1).
  4. Pump according to claim 3, characterised in that said tilted face (23a) of the flange ring (23) of the cell (20) forms, together with the wall of the bore (10) of the button, a peripheral escape groove radially delimited by a flexible lip (23a) forming a valve.
  5. Pump according to claim 1 or 2, characterised in that said rod (3) is an independent part equipped, at the top, with a central cavity (30) intended for receiving a centring pin (13) formed on said button (1) and a sealing crown (32) coming to rest against the inner perimeter of the flange ring (23) of said cell (20) by forming an exhaust valve.
  6. Pump according to claim 5, characterised in that said crown (32) is provided with a bottom rib (32) coming to rest in a sealing manner against an annular flange (23c) made on the inner perimeter of said flange ring (23).
  7. Pump according to claim 5 or 6, characterised in that said crown (32) has teeth (33) cooperating with notches (14) made in the inner wall of the bore (10) of the button.
  8. Pump according to any preceding claim, characterised in that said body (2) comprises, at the bottom, a socket (22) for attachment to a reservoir (R).
  9. Pump according to claim 8, characterised in that said socket (22) comprises a supporting shoulder (24) on said reservoir and at least one lug (25) forming a bottom stop for said flange ring (23) during the deformation of said cell (20).
  10. Pump according to any preceding claim, characterised in that said button (1) comprises a lateral skirt (11) inside which is housed said body (2).
  11. Pump according to any preceding claim, characterised in that said cell (20) is made in the form of a cylindrical pocket with gussets.
  12. Pump according to any preceding claim, characterised in that said body (2) extends downwards by an intake tube (4) connected to said intake valve.
EP05775327A 2004-06-10 2005-06-07 Simplified airless dispensing pump for liquid products Active EP1753542B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0406276A FR2871533B1 (en) 2004-06-10 2004-06-10 SIMPLIFIED PUMP FOR DISTRIBUTOR OF LIQUID PRODUCTS WITHOUT RETURNING AIR
PCT/FR2005/001391 WO2006003297A1 (en) 2004-06-10 2005-06-07 Simplified airless dispensing pump for liquid products

Publications (2)

Publication Number Publication Date
EP1753542A1 EP1753542A1 (en) 2007-02-21
EP1753542B1 true EP1753542B1 (en) 2008-07-16

Family

ID=34947138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05775327A Active EP1753542B1 (en) 2004-06-10 2005-06-07 Simplified airless dispensing pump for liquid products

Country Status (12)

Country Link
US (1) US7624897B2 (en)
EP (1) EP1753542B1 (en)
JP (1) JP2008501518A (en)
CN (1) CN1964795A (en)
AT (1) ATE401136T1 (en)
BR (1) BRPI0511208A (en)
CA (1) CA2568525A1 (en)
DE (1) DE602005008236D1 (en)
ES (1) ES2310840T3 (en)
FR (1) FR2871533B1 (en)
RU (1) RU2006143205A (en)
WO (1) WO2006003297A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905611B1 (en) 2006-09-12 2010-01-15 Rexam Dispensing Sys SPRAY NOZZLE, DISPENSING DEVICE COMPRISING SUCH A NOZZLE, DISPENSER COMPRISING SUCH A DISPENSING ORGAN AND USE OF SUCH A NOZZLE.
DE102008029004A1 (en) * 2007-06-29 2009-01-02 Rpc Bramlage Gmbh Dispenser for dispensing liquid or pasty masses
ITRM20080263A1 (en) * 2008-05-16 2009-11-17 Emsar Spa FLUID PRODUCTS DISPENSER.
CN102451805A (en) * 2010-10-29 2012-05-16 上海佳田药用包装有限公司 Inner spray method and device for medical packing aluminum tube
US10906055B2 (en) * 2016-11-28 2021-02-02 L'oreal Device for packaging and dispensing a product comprising a moveable piston
US10293353B2 (en) 2017-04-25 2019-05-21 Gpcp Ip Holdings Llc Automated flowable material dispensers and related methods for dispensing flowable material
US11027909B2 (en) 2018-08-15 2021-06-08 Gpcp Ip Holdings Llc Automated flowable material dispensers and related methods for dispensing flowable material
US12064063B2 (en) 2019-09-23 2024-08-20 Gpcp Ip Holdings Llc Automated toilet seat cover dispenser

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Publication number Priority date Publication date Assignee Title
WO2005107954A1 (en) * 2004-04-08 2005-11-17 Rexam Dispensing Systems Airless dispenser for dispensing low doses of liquid products, in particular cosmetic or pharmaceutical products

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US3075708A (en) * 1958-03-05 1963-01-29 Drackett Co One piece aerosol spray head
US3752366A (en) * 1971-10-27 1973-08-14 W Lawrence Two-piece suction pump
US4201317A (en) * 1977-07-28 1980-05-06 Aleff Hans P Finger actuated pump assembly
US4336895A (en) * 1977-07-28 1982-06-29 Aleff Hans P Finger actuated pump assembly
EP0304567B1 (en) * 1987-07-07 1990-10-31 Raimund Andris Dosing pump for liquid and/or viscous products
ZA885235B (en) * 1987-08-28 1989-04-26 Andris Raimund Metering and spray pump
DE4041136C2 (en) * 1990-12-21 1994-06-30 Andris Raimund Gmbh & Co Kg Dosing and spray pump for dispensing liquid, low-viscosity and pasty substances
DE4120644C1 (en) * 1991-06-22 1993-03-25 Raimund Andris Gmbh & Co Kg, 7730 Villingen-Schwenningen, De
US5544789A (en) * 1995-01-05 1996-08-13 Calmar Inc. Bellows pump dispenser
FR2835513B1 (en) * 2002-02-06 2004-08-06 Rexam Sofab DEVICE FOR PERFUME SAMPLES

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Publication number Priority date Publication date Assignee Title
WO2005107954A1 (en) * 2004-04-08 2005-11-17 Rexam Dispensing Systems Airless dispenser for dispensing low doses of liquid products, in particular cosmetic or pharmaceutical products

Also Published As

Publication number Publication date
US7624897B2 (en) 2009-12-01
BRPI0511208A (en) 2007-11-27
ATE401136T1 (en) 2008-08-15
RU2006143205A (en) 2008-07-20
FR2871533A1 (en) 2005-12-16
FR2871533B1 (en) 2006-09-01
DE602005008236D1 (en) 2008-08-28
WO2006003297A1 (en) 2006-01-12
ES2310840T3 (en) 2009-01-16
US20070108234A1 (en) 2007-05-17
CA2568525A1 (en) 2006-01-12
EP1753542A1 (en) 2007-02-21
JP2008501518A (en) 2008-01-24
CN1964795A (en) 2007-05-16

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