EP0733559B1 - Dispenser for liquid or pasty product, particularly for use in cosmetics - Google Patents

Dispenser for liquid or pasty product, particularly for use in cosmetics Download PDF

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Publication number
EP0733559B1
EP0733559B1 EP96400594A EP96400594A EP0733559B1 EP 0733559 B1 EP0733559 B1 EP 0733559B1 EP 96400594 A EP96400594 A EP 96400594A EP 96400594 A EP96400594 A EP 96400594A EP 0733559 B1 EP0733559 B1 EP 0733559B1
Authority
EP
European Patent Office
Prior art keywords
push
button
reservoir
valve
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96400594A
Other languages
German (de)
French (fr)
Other versions
EP0733559A1 (en
Inventor
Jean-Louis Gueret
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.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0733559A1 publication Critical patent/EP0733559A1/en
Application granted granted Critical
Publication of EP0733559B1 publication Critical patent/EP0733559B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0029—Valves not actuated by pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material

Definitions

  • the present invention relates to a product dispenser liquid or pasty usable especially in cosmetics.
  • distributors that include a tank which contains the liquid or pasty product to be dispensed and a chamber with variable volume constituted for example by a cylinder and a piston, the reservoir being joined by a first valve to the volume chamber variable, which opens to the outside of the distributor by a second valve so that by varying with a push the volume of the variable volume chamber, we exert a pumping action which passes the liquid or pasty product from the tank in the variable volume chamber and then outside the distributor.
  • a distributor according to the first part of claim 1 is known from document US-A-5,100,027.
  • This opening is also a source of non-sealing for the device.
  • the present invention aims by simple and effective means to remedy the aforementioned drawbacks by ensuring immobilization of the pusher which causes the expulsion of the product.
  • the present invention relates to a product dispenser liquid or pasty usable especially in cosmetic of the type comprising a retractable reservoir for the product to be dispensed, this tank being connected by a first valve to a volume chamber variable under the action of a pusher, said variable volume chamber being itself connected to the outside by a second valve, dispenser characterized in that the body of the pusher constitutes with a fixed piston integral with the reservoir the chamber variable volume, the body of the pusher being made up of two parts concentric each provided with a hole which can pivot one by relation to the other between a first position in which the orifices of the two parts of the pusher are opposite one another and a second position in which said orifices are not in facing each other so that the product contained in the variable volume chamber cannot be evacuated through the second valve external and that the pusher is thus immobilized.
  • stops on the two pieces of the pusher which pivot one by relative to each other to limit their rotation between positions for which the channel leading to the external valve is open or closed.
  • the orifices communicating with the two parts of the pusher are located at the vicinity of where the variable volume chamber communicates with the second valve which opens to the outside.
  • the chamber variable volume consists of a fixed piston fitted with the first valve on which slides a movable cylinder incorporated in the lower part of the pusher which is pushed back by a spring arranged around the movable cylinder and the fixed piston in a cavity formed at the upper part of the tank.
  • the spring is obtained directly by plastic molding at the same time as the bottom of the pusher with which it is one.
  • the piston valve can consist of two lips which come to apply spontaneously against each other or by a shutter resiliently pushed back to engage in an orifice piston.
  • a flexible tank 1 provided with a plug 2 whose periphery clicks in 3 on the upper part of a rigid container 4 which surrounds the flexible tank 1.
  • the upper part of the flexible tank 1 is welded or glued at 6 to the external periphery of the plug 2. After having been filled with its lower end with product 5 to be dispensed, the flexible tank 1 is welded at 1 a .
  • the reservoir 1 has the advantage of being able to deform at as the product it contains is distributed, such so it is not necessary to provide a hole for its installation the open air.
  • the plug 2 axially comprises a tube 7 which is provided at its upper part of a piston 8 with a central orifice forming a first valve 9 which is closed in the rest state.
  • a pusher 10 comprises a lower part 10b constituted by a cylinder 11 provided with a flange 12 and a skirt 13, the periphery of which slides inside the annular recess which is delimited by the internal wall of the plug 2.
  • the boss 15 can easily be engaged below the boss 14 due to the elasticity of the material plastic from which the various parts of the dispenser are made.
  • the plug 2 is extended at its lower part in the axis of the tube 7 by several bars 17 joined at their lower end by a pierced washer 18.
  • these bars 17 The purpose of these bars 17 is to maintain the reservoir flexible 1 during its contraction resulting from consumption progressive of the product 5 it contains, avoiding the formation of pockets where part of the product 5 would stay which could not be sucked in by the variable volume chamber 19 located inside the push button 10.
  • the presence of the bars 17 ensures, what whatever the filling state of tank 1, the existence of a channel axial through which product 5 can flow to the chamber variable volume 19.
  • the upper edge of the cylindrical part 11 of the push button 10 has a lateral opening 20.
  • the upper part 10a of the push button 10 includes a first outer cylindrical skirt 22 having a circular rib 23 comes to click into a corresponding recess of the cylindrical wall 11 of the lower part 10 b of the pusher 10.
  • the upper part 10 a of the pusher 10 also includes a second internal cylindrical skirt 24 situated on the other side of the cylindrical wall 11.
  • the skirt 24 has an orifice 25 which, as shown in FIG. 1, can be brought into coincidence with the orifice 20 of the cylindrical wall 11, by pivoting the upper part 10 a of the pusher relative to its lower part 10 b .
  • the openings 20 and 25 communicate with the channel 26 which leads to the second valve 27 which leads to outside the dispenser.
  • FIG 2 a perspective view of the upper part 10 partially cut and the lower portion 10b of the pusher 10.
  • Stops not shown make it possible to limit the angular pivoting of the upper part 10 a with respect to the lower part 10 b of the pusher so that in one position the orifices 20 and 25 are in correspondence while in the other position, they are not.
  • the skirt 13 of the lower part 10b has, as can be seen in FIG. 2, an oval contour which corresponds to the general shape of the rigid container 4.
  • This oval shape has the advantage to avoid that the lower part 10 b of the pusher 10 is rotated upon movement of the upper part 10 a which provides easy switching of the position where the orifices 20 and 25 are in correspondence to the position where they are not and vice versa.
  • the spring 16 pushes back the latter upwards by creating inside chamber 19 a depression which sucks inside of it the product 5 which is in the tank 1.
  • skirt 22 is not likely to be detach from cylinder 11 in the event of an accidental push on the pusher 10 because the groove 23 is isolated from the channel 26.
  • the area used to hold the pivoting part of the pusher on the other part serving as support is insulated, when the orifices 20 and 25 do not are more in communication, of the product inside the part serving as support.
  • FIG. 3 and 4 There is shown in Figures 3 and 4 a second embodiment of the invention in which there is the plug 2 placed on the upper part of the container, which receives the pusher 10 consisting of a lower part 10 b consisting of a cylinder 11 provided with a flange 12 carrying a skirt 13.
  • the pusher 10 consisting of a lower part 10 b consisting of a cylinder 11 provided with a flange 12 carrying a skirt 13.
  • the spring 16 which pushes the pushing up constitutes a single piece with the skirt 13, came during the molding of the plastic.
  • valve of the fixed piston 8 is constituted by a stud 9 surrounded on its periphery by orifices 9 a to let the product contained in the tank pass, the stud 9 resting elastically against the orifice 9b made in the upper part of the tube 7 which is integral with the plug 2.
  • the vacuum which is created in the chamber 19 causes the raising of the stud 9, which allows the product contained in the reservoir to flow through the orifices 9 b and 9 a to reach the chamber 19 from which it is expelled when the pusher 10 is lowered again by flowing through the channels 25 and 26 as was previously described for the first embodiment.
  • FIG. 4 schematically shows how the internal tubular part 11 of the pusher 10 comprises on approximately a quarter of its periphery two stops 11 a and 11 b delimiting a recess 11 c .
  • FIG. 4 Also shown in Figure 4 how the upper part 10a of the pusher includes within its cylindrical wall 22 has a rib 22 which cooperates with the stops 11a and 11b for limiting the rotation of the upper part 10a of the pusher between a position represented in FIG. 3 in which the orifices 20, 25 and 26 are in correspondence and another position not shown for which the upper part of the tube 11 does not have an opening 20 and therefore closes the passage between the openings 25 and 26, which prevents any outward flow of the product contained in the volume 19 even if the pusher 10 is pressed.
  • the dispenser according to the invention is of a particularly simple and economical construction while providing perfect safety against unwanted product flows outwards.
  • the general structure of the dispenser according to the invention allows an easy realization of the various parts which are of simple form and reduced in number by plastic molding.
  • the flexible tank 1 can be replaced by a follower piston tank whose useful volume decreases gradually according to the consumption of the product.

Landscapes

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

Abstract

The distributor comprises a retractable reservoir (1) for the product. This reservoir is connected through a valve (9) to a variable volume chamber (19) under the action of a push button (10). The push button body constitutes with a piston (8) fixed to the reservoir the variable volume chamber. The chamber is connected to the outside through a second valve (27). The push button body consists of two parts (10a,10b) each provided with an orifice (20,25). These two parts are able to pivot relative to each other between positions in which the orifices are either facing each other or not. When the two orifices are not facing each other the product contained in the variable volume chamber cannot reach the second valve and the push button is immobilised. The two orifices communicate through a channel (26) with the second valve.

Description

La présente invention a pour objet un distributeur de produit liquide ou pâteux utilisable notamment en cosmétique.The present invention relates to a product dispenser liquid or pasty usable especially in cosmetics.

On connaít déjà des distributeurs qui comprennent un réservoir qui contient le produit liquide ou pâteux à distribuer et une chambre à volume variable constituée par exemple par un cylindre et un piston, le réservoir étant réuni par une première valve à la chambre à volume variable, laquelle débouche à l'extérieur du distributeur par une seconde valve de telle sorte qu'en faisant varier à l'aide d'un poussoir le volume de la chambre à volume variable, on exerce une action de pompage qui fait passer le produit liquide ou pâteux du réservoir dans la chambre à volume variable, puis à l'extérieur du distributeur.We already know distributors that include a tank which contains the liquid or pasty product to be dispensed and a chamber with variable volume constituted for example by a cylinder and a piston, the reservoir being joined by a first valve to the volume chamber variable, which opens to the outside of the distributor by a second valve so that by varying with a push the volume of the variable volume chamber, we exert a pumping action which passes the liquid or pasty product from the tank in the variable volume chamber and then outside the distributor.

Un distributeur selon la première partie de la revendication 1 est connu du document US-A-5 100 027.A distributor according to the first part of claim 1 is known from document US-A-5,100,027.

De tels dispositifs connus présentent l'inconvénient, que si pour une raison quelconque, il se produit une surpression dans le récipient, le produit liquide ou pâteux s'écoule à l'extérieur du distributeur en ouvrant les deux valves qu'il rencontre sur son parcours, ce qui nuit à l'étanchéité du dispositif.Such known devices have the disadvantage that if for some reason there is an overpressure in the container, liquid or pasty product flows out of the distributor by opening the two valves he meets on his course, which affects the tightness of the device.

De surcroít, lorsque de tels dispositifs connus sont utilisés avec un réservoir rigide non rétractable, il est nécessaire de laisser une ouverture pour le passage de l'air qui doit progressivement occuper la place du produit qui est extrait du récipient par le distributeur.In addition, when such known devices are used with a non-retractable rigid tank, it is necessary to leave an opening for the passage of air which must gradually occupy the place of the product which is extracted from the container by the distributor.

Cette ouverture est également une source de non étanchéité pour le dispositif.This opening is also a source of non-sealing for the device.

La présente invention vise par des moyens simples et efficaces à remédier aux inconvénients précités en assurant une immobilisation du poussoir qui provoque l'expulsion du produit.The present invention aims by simple and effective means to remedy the aforementioned drawbacks by ensuring immobilization of the pusher which causes the expulsion of the product.

La présente invention a pour objet un distributeur de produit liquide ou pâteux utilisable notamment en cosmétique du type comportant un réservoir rétractable pour le produit à distribuer, ce réservoir étant relié par une première valve à une chambre à volume variable sous l'action d'un poussoir, ladite chambre à volume variable étant elle-même reliée à l'extérieur par une seconde valve, distributeur caractérisé par le fait que le corps du poussoir constitue avec un piston fixe solidaire du réservoir la chambre à volume variable, le corps du poussoir étant constitué de deux parties concentriques munies chacune d'un orifice pouvant pivoter l'une par rapport à l'autre entre une première position dans laquelle les orifices des deux parties du poussoir sont en face l'un de l'autre et une seconde position dans laquelle lesdits orifices ne sont pas en face l'un de l'autre de telle sorte que le produit contenu dans la chambre à volume variable ne peut s'évacuer à travers la seconde valve externe et que le poussoir se trouve ainsi immobilisé.The present invention relates to a product dispenser liquid or pasty usable especially in cosmetic of the type comprising a retractable reservoir for the product to be dispensed, this tank being connected by a first valve to a volume chamber variable under the action of a pusher, said variable volume chamber being itself connected to the outside by a second valve, dispenser characterized in that the body of the pusher constitutes with a fixed piston integral with the reservoir the chamber variable volume, the body of the pusher being made up of two parts concentric each provided with a hole which can pivot one by relation to the other between a first position in which the orifices of the two parts of the pusher are opposite one another and a second position in which said orifices are not in facing each other so that the product contained in the variable volume chamber cannot be evacuated through the second valve external and that the pusher is thus immobilized.

Dans un mode de réalisation préféré de l'invention, on prévoit des butées sur les deux pièces du poussoir qui pivotent l'une par rapport à l'autre pour limiter leur rotation entre les positions pour lesquelles le canal débouchant sur la valve extérieure est ouvert ou fermé.In a preferred embodiment of the invention, provision is made stops on the two pieces of the pusher which pivot one by relative to each other to limit their rotation between positions for which the channel leading to the external valve is open or closed.

Il est également avantageux de prévoir des moyens de repérage visibles de l'extérieur pour identifier les positions ouverte et fermée.It is also advantageous to provide locating means visible from the outside to identify open positions and closed.

Dans un mode de réalisation préféré de l'invention, les orifices communiquant des deux parties du poussoir sont situés au voisinage de l'endroit où la chambre à volume variable communique avec la seconde valve qui débouche sur l'extérieur.In a preferred embodiment of the invention, the orifices communicating with the two parts of the pusher are located at the vicinity of where the variable volume chamber communicates with the second valve which opens to the outside.

Dans un mode de réalisation préféré de l'invention, la chambre à volume variable est constituée par un piston fixe muni de la première valve sur lequel coulisse un cylindre mobile incorporé à la partie inférieure du poussoir qui est repoussé par un ressort disposé autour du cylindre mobile et du piston fixe dans une cavité ménagée à la partie supérieure du réservoir.In a preferred embodiment of the invention, the chamber variable volume consists of a fixed piston fitted with the first valve on which slides a movable cylinder incorporated in the lower part of the pusher which is pushed back by a spring arranged around the movable cylinder and the fixed piston in a cavity formed at the upper part of the tank.

Dans une variante, le ressort est obtenu directement par moulage de matière plastique en même temps que la partie inférieure du poussoir avec laquelle il fait corps.In a variant, the spring is obtained directly by plastic molding at the same time as the bottom of the pusher with which it is one.

La valve du piston peut être constituée par deux lèvres qui viennent s'appliquer spontanément l'une contre l'autre ou par un obturateur repoussé élastiquement pour venir s'engager dans un orifice du piston.The piston valve can consist of two lips which come to apply spontaneously against each other or by a shutter resiliently pushed back to engage in an orifice piston.

Dans le but de mieux faire comprendre toutes les caractéristiques de l'invention, on va en décrire maintenant à titre d'illustration et sans aucun caractère limitatif un mode de réalisation pris comme exemple de l'invention et représenté sur le dessin annexé dans lequel :

  • la figure 1 est une vue schématique en coupe longitudinale d'un premier mode de réalisation de l'invention,
  • la figure 2 est une vue en perspective avec coupe partielle représentant les deux parties du poussoir qui constituent la chambre à volume variable du mode de réalisation de la figure 1.
  • la figure 3 est une vue en coupe d'un second mode de réalisation de l'invention et
  • la figure 4 est une section selon IV-IV de la figure 3.
In order to better understand all the characteristics of the invention, we will now describe by way of illustration and without any limiting character an embodiment taken as an example of the invention and shown in the accompanying drawing in which:
  • FIG. 1 is a schematic view in longitudinal section of a first embodiment of the invention,
  • FIG. 2 is a perspective view with partial section showing the two parts of the pusher which constitute the variable volume chamber of the embodiment of FIG. 1.
  • FIG. 3 is a sectional view of a second embodiment of the invention and
  • FIG. 4 is a section along IV-IV of FIG. 3.

On voit sur la figure 1, un réservoir souple 1 muni d'un bouchon 2 dont la périphérie se clique en 3 sur la partie supérieure d'un récipient rigide 4 qui entoure le réservoir souple 1.We see in Figure 1, a flexible tank 1 provided with a plug 2 whose periphery clicks in 3 on the upper part of a rigid container 4 which surrounds the flexible tank 1.

La partie haute du réservoir souple 1 est soudée ou collée en 6 sur la périphérie externe du bouchon 2. Après avoir été rempli par son extrémité inférieure du produit 5 à distribuer, le réservoir souple 1 est soudé en 1a.The upper part of the flexible tank 1 is welded or glued at 6 to the external periphery of the plug 2. After having been filled with its lower end with product 5 to be dispensed, the flexible tank 1 is welded at 1 a .

Le réservoir 1 présente l'avantage de pouvoir se déformer au fur et à mesure de la distribution du produit qu'il contient, de telle sorte qu'il n'est pas nécessaire de prévoir un orifice pour sa mise à l'air libre.The reservoir 1 has the advantage of being able to deform at as the product it contains is distributed, such so it is not necessary to provide a hole for its installation the open air.

Le bouchon 2 comporte axialement un tube 7 qui est muni à sa partie supérieure d'un piston 8 avec un orifice central formant une première valve 9 qui se trouve fermée à l'état de repos.The plug 2 axially comprises a tube 7 which is provided at its upper part of a piston 8 with a central orifice forming a first valve 9 which is closed in the rest state.

Un poussoir 10 comporte une pièce inférieure 10b constituée par un cylindre 11 muni d'un flasque 12 et d'une jupe 13 dont la périphérie coulisse à l'intérieur de l'évidement annulaire qui est délimité par la paroi interne du bouchon 2.A pusher 10 comprises a lower part 10b constituted by a cylinder 11 provided with a flange 12 and a skirt 13, the periphery of which slides inside the annular recess which is delimited by the internal wall of the plug 2.

Deux bossages annulaires 14 et 15 pratiqués d'une part sur la paroi interne du bouchon 2 et d'autre part sur la périphérie externe de la jupe 13 du poussoir, limitent le déplacement vers le haut de ce dernier sous l'action du ressort 16 qui est logé dans l'espace annulaire du bouchon 2.Two annular bosses 14 and 15 formed on the one hand on the inner wall of plug 2 and on the other hand on the outer periphery of the skirt 13 of the pusher, limit the upward movement of this last under the action of the spring 16 which is housed in space ring 2.

Lors du montage, le bossage 15 peut facilement être engagé en-dessous du bossage 14 en raison de l'élasticité de la matière plastique dont sont faites les diverses pièces du distributeur. During assembly, the boss 15 can easily be engaged below the boss 14 due to the elasticity of the material plastic from which the various parts of the dispenser are made.

Le bouchon 2 est prolongé à sa partie inférieure dans l'axe du tube 7 par plusieurs barrettes 17 réunies à leur extrémité inférieure par une rondelle percée 18.The plug 2 is extended at its lower part in the axis of the tube 7 by several bars 17 joined at their lower end by a pierced washer 18.

Ces barrettes 17 ont pour objet de maintenir le réservoir souple 1 lors de sa contraction résultant de la consommation progressive du produit 5 qu'il contient, en évitant qu'il se forme des poches où séjournerait une partie du produit 5 qui ne pourrait être aspiré par la chambre à volume variable 19 située à l'intérieur du bouton-poussoir 10.The purpose of these bars 17 is to maintain the reservoir flexible 1 during its contraction resulting from consumption progressive of the product 5 it contains, avoiding the formation of pockets where part of the product 5 would stay which could not be sucked in by the variable volume chamber 19 located inside the push button 10.

En d'autres termes, la présence des barrettes 17 assure, quel que soit l'état de remplissage du réservoir 1, l'existence d'un canal axial par lequel le produit 5 peut s'écouler jusqu'à la chambre à volume variable 19.In other words, the presence of the bars 17 ensures, what whatever the filling state of tank 1, the existence of a channel axial through which product 5 can flow to the chamber variable volume 19.

Le bord supérieur de la partie cylindrique 11 du bouton-poussoir 10 comporte un orifice latéral 20.The upper edge of the cylindrical part 11 of the push button 10 has a lateral opening 20.

La partie supérieure 10a du bouton-poussoir 10 comporte une première jupe cylindrique externe 22 dont une nervure circulaire 23 vient se cliquer dans un évidement correspondant de la paroi cylindrique 11 de la partie inférieure 10b du poussoir 10.The upper part 10a of the push button 10 includes a first outer cylindrical skirt 22 having a circular rib 23 comes to click into a corresponding recess of the cylindrical wall 11 of the lower part 10 b of the pusher 10.

La partie supérieure 10a du poussoir 10 comporte également une seconde jupe cylindrique interne 24 située de l'autre côté de la paroi cylindrique 11.The upper part 10 a of the pusher 10 also includes a second internal cylindrical skirt 24 situated on the other side of the cylindrical wall 11.

La jupe 24 comporte un orifice 25 qui, comme cela est représenté sur la figure 1, peut être amené en coïncidence avec l'orifice 20 de la paroi cylindrique 11, en faisant pivoter la partie supérieure 10a du poussoir par rapport à sa partie inférieure 10b.The skirt 24 has an orifice 25 which, as shown in FIG. 1, can be brought into coincidence with the orifice 20 of the cylindrical wall 11, by pivoting the upper part 10 a of the pusher relative to its lower part 10 b .

Dans cette position, les orifices 20 et 25 communiquent avec le canal 26 qui conduit à la seconde valve 27 laquelle débouche sur l'extérieur du distributeur.In this position, the openings 20 and 25 communicate with the channel 26 which leads to the second valve 27 which leads to outside the dispenser.

On a représenté sur la figure 2, une vue en perspective de la partie supérieure 10a partiellement coupée et de la partie inférieure 10b du poussoir 10.There is shown in Figure 2, a perspective view of the upper part 10 partially cut and the lower portion 10b of the pusher 10.

On retrouve sur cette figure la rainure 23 dans laquelle s'engage le bossage correspondant réalisé sur la surface interne de la jupe 22 de la partie supérieure 10a du poussoir, ce qui permet de maintenir la partie 10a sur la partie 10b tout en lui permettant de pivoter autour de son axe vertical. Found in this figure the groove 23 in which engages the corresponding boss formed on the inner surface of the skirt 22 of the upper portion 10a of the pusher, which keeps the portion 10 a over the part 10 b while allowing it to pivot around its vertical axis.

Des butées non représentées permettent de limiter le pivotement angulaire de la partie supérieure 10a par rapport à la partie inférieure 10b du poussoir de manière, à ce que dans une position les orifices 20 et 25 se trouvent en correspondance alors que dans l'autre position, ils ne le sont pas.Stops not shown make it possible to limit the angular pivoting of the upper part 10 a with respect to the lower part 10 b of the pusher so that in one position the orifices 20 and 25 are in correspondence while in the other position, they are not.

Selon un mode de réalisation préféré, la jupe 13 de la partie inférieure 10b présente, comme on le voit sur la figure 2, un contour ovale qui correspond à la forme générale du récipient rigide 4.According to a preferred embodiment, the skirt 13 of the lower part 10b has, as can be seen in FIG. 2, an oval contour which corresponds to the general shape of the rigid container 4.

Cette forme ovale présente l'avantage d'éviter que la partie inférieure 10b du poussoir 10 ne soit entraínée en rotation lors du mouvement de la partie supérieure 10a qui permet de passer facilement de la position où les orifices 20 et 25 sont en correspondance à la position où ils ne le sont pas et inversement.This oval shape has the advantage to avoid that the lower part 10 b of the pusher 10 is rotated upon movement of the upper part 10 a which provides easy switching of the position where the orifices 20 and 25 are in correspondence to the position where they are not and vice versa.

On comprend que pour extraire le produit 5 hors du distributeur, il suffit de faire pivoter la partie supérieure 10a du poussoir 10 pour l'amener dans la position où les orifices 20 et 25 sont en face l'un de l'autre, puis d'appuyer sur le poussoir 10 dans le sens de la flèche F de la figure 1 pour réduire le volume de la chambre à volume variable 19 en comprimant le ressort 16.It is understood that to extract the product out of the dispenser 5, simply rotate the upper portion 10a of the plunger 10 to bring it into the position where the orifices 20 and 25 are opposite one another and to press the pusher 10 in the direction of the arrow F in FIG. 1 to reduce the volume of the variable-volume chamber 19 by compressing the spring 16.

En relâchant l'effort sur le poussoir, le ressort 16 repousse ce dernier vers le haut en créant à l'intérieur de la chambre 19 une dépression qui aspire à son intérieur le produit 5 se trouvant dans le réservoir 1.By releasing the force on the pusher, the spring 16 pushes back the latter upwards by creating inside chamber 19 a depression which sucks inside of it the product 5 which is in the tank 1.

Lorsque la chambre 19 est initialement vide, il suffit de quelques pressions successives sur le poussoir F pour la remplir ainsi que le canal 26 du produit 5 qui est ensuite expulsé à l'extérieur en repoussant la seconde valve 27.When the chamber 19 is initially empty, it suffices to a few successive presses on button F to fill it in this way that channel 26 of product 5 which is then expelled outside in pushing back the second valve 27.

Lorsque le distributeur a déjà été utilisé, il suffit d'appuyer sur le poussoir 10 pour que le produit qui se trouve dans le canal 26 et dans la chambre 19 soit expulsé à l'extérieur par la valve 27, tandis que la surpression régnant à l'intérieur du volume 19 maintient fermée la valve 9 qui communique avec le réservoir 1.When the dispenser has already been used, simply press on pusher 10 so that the product which is in channel 26 and into the chamber 19 is expelled to the outside by the valve 27, while the overpressure prevailing inside the volume 19 maintains closed the valve 9 which communicates with the tank 1.

Lorsque l'on fait pivoter la partie supérieure 10a du poussoir de sorte que les orifices 20 et 25 ne se trouvent plus en communication et que l'orifice 20 est obturé par la jupe intérieure 24, le produit qui occupe la chambre à volume variable 19 ne peut plus s'échapper de cette dernière ce qui rend impossible un déplacement du poussoir 10 vers le bas.When the upper part 10 a is pivoted of the pusher so that the orifices 20 and 25 are no longer in communication and the orifice 20 is closed by the internal skirt 24, the product which occupies the variable volume chamber 19 can no longer escape from the latter which makes it impossible to move the pusher 10 downwards.

Il en résulte que le produit 5 qui se trouve dans le canal 26 entre la valve 27 et la jupe 24 ne risque pas de se répandre à l'extérieur du distributeur.As a result, the product 5 which is in the channel 26 between the valve 27 and the skirt 24 is not likely to spread to outside the dispenser.

Il en résulte également que la jupe 22 ne risque pas de se détacher du cylindre 11 en cas de poussée accidentelle sur le poussoir 10 car la rainure 23 est isolée du canal 26. En d'autres termes, la zone servant à retenir la partie pivotante du poussoir sur l'autre partie servant de support est isolée, lorsque les orifices 20 et 25 ne sont plus en communication, du produit se trouvant à l'intérieur de la partie servant de support.It also follows that the skirt 22 is not likely to be detach from cylinder 11 in the event of an accidental push on the pusher 10 because the groove 23 is isolated from the channel 26. In other words, the area used to hold the pivoting part of the pusher on the other part serving as support is insulated, when the orifices 20 and 25 do not are more in communication, of the product inside the part serving as support.

On a représenté sur les figures 3 et 4 un second mode de réalisation de l'invention sur lequel on retrouve le bouchon 2 placé sur la partie supérieure du récipient, qui reçoit le poussoir 10 constitué par une pièce inférieure 10b constituée par un cylindre 11 muni d'un flasque 12 portant une jupe 13.There is shown in Figures 3 and 4 a second embodiment of the invention in which there is the plug 2 placed on the upper part of the container, which receives the pusher 10 consisting of a lower part 10 b consisting of a cylinder 11 provided with a flange 12 carrying a skirt 13.

Dans ce mode de réalisation, le ressort 16 qui repousse le poussoir vers le haut constitue une pièce unique avec la jupe 13, venue lors du moulage de la matière plastique.In this embodiment, the spring 16 which pushes the pushing up constitutes a single piece with the skirt 13, came during the molding of the plastic.

Dans le mode de réalisation de la figure 3, la valve du piston fixe 8 est constituée par un téton 9 entouré sur sa périphérie par des orifices 9a pour laisser passer le produit contenu dans le réservoir, le téton 9 s'appuyant élastiquement contre l'orifice 9b pratiqué dans la partie haute du tube 7 qui est solidaire du bouchon 2.In the embodiment of FIG. 3, the valve of the fixed piston 8 is constituted by a stud 9 surrounded on its periphery by orifices 9 a to let the product contained in the tank pass, the stud 9 resting elastically against the orifice 9b made in the upper part of the tube 7 which is integral with the plug 2.

Lorsqu'après avoir été comprimé vers le bas, le poussoir 10 est relâché, le vide qui se crée dans la chambre 19 provoque le soulèvement du téton 9, ce qui permet au produit contenu dans le réservoir de s'écouler par les orifices 9b et 9a pour parvenir dans la chambre 19 d'où il est expulsé lorsque l'on abaisse à nouveau le poussoir 10 en s'écoulant par les canaux 25 et 26 comme cela était précédemment décrit pour le premier mode de réalisation.When after having been compressed downwards, the pusher 10 is released, the vacuum which is created in the chamber 19 causes the raising of the stud 9, which allows the product contained in the reservoir to flow through the orifices 9 b and 9 a to reach the chamber 19 from which it is expelled when the pusher 10 is lowered again by flowing through the channels 25 and 26 as was previously described for the first embodiment.

On a schématiquement représenté sur la figure 4, comment la partie interne tubulaire 11 du poussoir 10 comporte sur environ un quart de sa périphérie deux butées 11a et 11b délimitant un évidement 11c. FIG. 4 schematically shows how the internal tubular part 11 of the pusher 10 comprises on approximately a quarter of its periphery two stops 11 a and 11 b delimiting a recess 11 c .

On voit également sur la figure 4 comment la partie supérieure 10a du poussoir comporte à l'intérieur de sa paroi cylindrique 22 une nervure 22a qui coopère avec les butées 11a et 11b pour limiter la rotation de la partie supérieure 10a du poussoir entre une position représentée sur la figure 3 dans laquelle les orifices 20, 25 et 26 sont en correspondance et une autre position non représentée pour laquelle la partie supérieure du tube 11 ne comporte pas d'ouverture 20 et de ce fait obture le passage entre les ouvertures 25 et 26, ce qui évite tout écoulement vers l'extérieur du produit contenu dans le volume 19 même si l'on appuie sur le poussoir 10.Also shown in Figure 4 how the upper part 10a of the pusher includes within its cylindrical wall 22 has a rib 22 which cooperates with the stops 11a and 11b for limiting the rotation of the upper part 10a of the pusher between a position represented in FIG. 3 in which the orifices 20, 25 and 26 are in correspondence and another position not shown for which the upper part of the tube 11 does not have an opening 20 and therefore closes the passage between the openings 25 and 26, which prevents any outward flow of the product contained in the volume 19 even if the pusher 10 is pressed.

Comme on le voit, le distributeur selon l'invention est d'une construction particulièrement simple et économique tout en offrant une parfaite sécurité vis-à-vis des écoulements indésirés du produit vers l'extérieur.As can be seen, the dispenser according to the invention is of a particularly simple and economical construction while providing perfect safety against unwanted product flows outwards.

La structure générale du distributeur selon l'invention permet une réalisation facile des différentes pièces qui sont de forme simple et en nombre réduit par moulage en matière plastique.The general structure of the dispenser according to the invention allows an easy realization of the various parts which are of simple form and reduced in number by plastic molding.

Il est bien entendu que le mode de réalisation qui vient d'être décrit ci-dessus ne présente aucun caractère limitatif et qu'il pourra recevoir modifications sans sortir pour cela du cadre de l'invention.It is understood that the embodiment which has just been described above is in no way limiting and that it may receive modifications without departing from the framework of the invention.

En particulier, le réservoir souple 1 peut être remplacé par un réservoir à piston suiveur dont le volume utile diminue progressivement en fonction de la consommation du produit.In particular, the flexible tank 1 can be replaced by a follower piston tank whose useful volume decreases gradually according to the consumption of the product.

Claims (8)

  1. Dispenser of liquid or pasty product which can be used particularly in cosmetics, of the type including a contractable reservoir (1) for the product to be dispensed, this reservoir (1) being connected by a first valve (9) to a chamber (19) whose volume can vary under the action of a push-button (10), the said variable-volume chamber (19) being itself connected to the outside by a second valve (27), the dispenser being characterized in that the body of the push-button (10) forms, with a stationary piston (8) integral with the reservoir (1), the variable-volume chamber (19), the body of the push-button (10) being formed of two parts (10a, 10b) each equipped with an orifice (20, 25) and able to be twisted with respect to one another between a first position in which the orifices (20, 25) of the two parts (10a, 10b) of the push-button face one another and a second position in which the orifices (20, 25) do not face one another so that the product (5) contained in the variable-volume chamber (19) cannot reach the second valve (27) and so that the push-button (10) is thus immobilized.
  2. Dispenser according to Claim 1, characterized in that the orifices (20, 25) of the two parts (10a, 10b) of the push-button (10) are situated close to the point where the variable-volume chamber (19) communicates via a duct (26) with the second valve (27) in order to open to the outside.
  3. Dispenser according to either one of the preceding claims, characterized in that the variable-volume chamber (19) is formed by a stationary piston (8) equipped with the first valve (9), on which piston there slides a mobile cylinder (11) incorporated into the lower part (10b) of the push-button which is pushed back by a spring (16) arranged around the mobile cylinder (11) and the stationary piston (8) in a cavity formed at the upper part of the reservoir (1).
  4. Dispenser according to one of Claims 1 and 2, characterized in that the push-button (10) is pushed back upwards by a spring (16) moulded integrally as a single piece with the lower part (10b) of the push-button (10).
  5. Dispenser according to one of Claims 3 and 4, characterized in that the lower part (10b) of the push-button (10) includes a flange (12) equipped on its periphery with a skirt (13) which slides against the internal peripheral surface of an annular cavity of the stopper (2) which seals off the upper part of the receptacle.
  6. Dispenser according to any one of the preceding claims, characterized in that the reservoir (1) is a flexible reservoir, the volume of which reduces as the product it contains is used up.
  7. Dispenser according to any one of Claims 1 to 5, characterized in that the reservoir (1) includes a part equipped with a follower piston which moves gradually in order to reduce the volume of the reservoir as the product contained in the reservoir is used up.
  8. Dispenser according to any one of the preceding claims, characterized in that the lower part (10b) and the upper part (10a) of the push-button (10) include valves allowing the open and closed positions of the duct (26) ending at the second outside valve (27) to be identified visually.
EP96400594A 1995-03-21 1996-03-21 Dispenser for liquid or pasty product, particularly for use in cosmetics Expired - Lifetime EP0733559B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9503256 1995-03-21
FR9503256A FR2731992B1 (en) 1995-03-21 1995-03-21 DISPENSER OF LIQUID OR PASTY PRODUCT FOR USE IN PARTICULAR IN COSMETICS

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EP0733559A1 EP0733559A1 (en) 1996-09-25
EP0733559B1 true EP0733559B1 (en) 1998-11-11

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EP96400594A Expired - Lifetime EP0733559B1 (en) 1995-03-21 1996-03-21 Dispenser for liquid or pasty product, particularly for use in cosmetics

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US (1) US5617976A (en)
EP (1) EP0733559B1 (en)
JP (1) JP3635594B2 (en)
AT (1) ATE173225T1 (en)
CA (1) CA2172229C (en)
DE (1) DE69600939T2 (en)
ES (1) ES2126365T3 (en)
FR (1) FR2731992B1 (en)

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Publication number Publication date
DE69600939T2 (en) 1999-05-12
FR2731992A1 (en) 1996-09-27
JPH08258858A (en) 1996-10-08
DE69600939D1 (en) 1998-12-17
ATE173225T1 (en) 1998-11-15
ES2126365T3 (en) 1999-03-16
US5617976A (en) 1997-04-08
EP0733559A1 (en) 1996-09-25
CA2172229A1 (en) 1996-09-22
CA2172229C (en) 2003-05-06
FR2731992B1 (en) 1997-04-30
JP3635594B2 (en) 2005-04-06

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