EP0519779A1 - Spray device for a liquid, susceptible to hardening upon drying, in particular a lacquer - Google Patents

Spray device for a liquid, susceptible to hardening upon drying, in particular a lacquer Download PDF

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Publication number
EP0519779A1
EP0519779A1 EP92401539A EP92401539A EP0519779A1 EP 0519779 A1 EP0519779 A1 EP 0519779A1 EP 92401539 A EP92401539 A EP 92401539A EP 92401539 A EP92401539 A EP 92401539A EP 0519779 A1 EP0519779 A1 EP 0519779A1
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EP
European Patent Office
Prior art keywords
push button
diffuser
liquid
air
button
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92401539A
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German (de)
French (fr)
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EP0519779B1 (en
Inventor
Gérard Joulia
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
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LOreal SA
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Publication date
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Publication of EP0519779A1 publication Critical patent/EP0519779A1/en
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Publication of EP0519779B1 publication Critical patent/EP0519779B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • 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
    • B05B11/1087—Combination of liquid and air pumps

Definitions

  • the invention relates to a device for spraying a liquid capable of hardening on drying, contained in a container provided with an opening equipped with a pump capable of being actuated using a push button overcoming the pump body, and passing the pump liquid through a diffuser, comprising a spray nozzle, provided in the push-button.
  • the invention relates more particularly, but not exclusively, to such a device for spraying a hair spray.
  • the spraying device aimed by the invention comprises a pump making it possible to suction and spray only the liquid.
  • the invention relates, more particularly, to a device, for spraying a liquid capable of hardening on drying, of the kind defined above, comprising means for expelling the liquid contained inside the diffuser, integrated into the less in part, in this push button, and comprising air compression means and means for evacuating the compressed air through the diffuser, actuated by depressing the push button, said means for evacuating compressed air comprising passage means provided in the push-button and means for closing these passage means.
  • EP-A-0 451 615 published after the priority date of this application, describes a device for spraying a liquid, comprising means for cleaning the diffuser.
  • this device provides for a permanent air leak, as soon as the air is pressurized by pressing the push button, a greater breath of air being provided at the end of the push button for cleaning the the nozzle ; such an arrangement results in a relatively low cleaning pressure and cleaning is not effective.
  • the object of the invention is, above all, to provide a device of the type defined above, in which the risks of clogging by drying of the liquid are considerably reduced, and preferably eliminated, and which is of reliable use and of realization simple and economical.
  • the air compression means comprise a deformable envelope fixed on the edge of the container opening and connected to the push button so as to determine a closed chamber, the push button acting in the manner of a piston. when pressed, to compress the air contained in this room.
  • the passage means provided in the push button communicate, at one end, with the aforesaid chamber and open, at their other end, in the diffuser towards the aforesaid nozzle.
  • the passage means advantageously comprise a longitudinal pipe parallel to the axis of the container and to the direction of insertion of the push button, and a transverse pipe connected, on one side, to a channel of the diffuser for the outlet of the liquid towards the nozzle and communicating, on the other side, with a housing connected to the aforesaid longitudinal pipe, the aforesaid closure means being disposed in this housing.
  • the closure means preferably include a valve, the seat of which is located in the above-mentioned housing.
  • the means for controlling the opening of the shutter means may include a stop suitable for coming to bear against the valve to move it away from its seat at the end of the push button pushing stroke.
  • the stop may be constituted by a rod substantially parallel to the axis of the container but offset radially relative to this axis, suitable for engaging in said longitudinal pipe which opens into the housing equipped with the valve.
  • the deformable envelope delimiting the closed chamber is advantageously constituted by an accordion bellows, made of a flexible material, comprising at its lower part a flange covering the edge of the opening of the container and connected at its other end in a sealed manner to the button -pusher.
  • the invention also relates to a push button for a device as defined above.
  • Figure 1 of these drawings is a schematic section of the upper end of a liquid container equipped with a device for spraying according to the invention.
  • Figure 2 shows the device of Figure 1 during spraying.
  • FIG 3 finally shows, similar to Figure 1, the device at the end of use, the push button being fully depressed.
  • a device 1 for spraying a liquid L contained in a container 2 constituting a bottle The liquid L is capable of hardening on drying and is composed, for example, of a volatile solvent and of a product dissolved in this solvent.
  • An example of such a liquid L is that of lacquers intended to be applied to the hair.
  • the container 2 made for example of light alloy, is provided with an opening 3 in the upper part whose edge 4 is rolled.
  • the opening 3 is equipped with a manual pump 5, schematically shown.
  • the body 6 of the pump is blocked in a cup 3 is crimped on the edge 4 of the opening 3, while a member 7 for controlling a piston of the pump is projecting upwards.
  • a dip tube 8 extending from the pump 5 extends to the bottom of the container 2.
  • This member 7 is recalled upwards by elastic means not visible in the drawing.
  • the control member 7 is crossed by a passage (not visible in the drawing) which allows the pumped liquid to pass through a diffuser 10 provided in the push button 9.
  • This diffuser 10 comprises an axial channel 11 starting from the upper end of the control member 7 and communicating with the passage provided in this member 7; in the upper part, the channel 11 communicates with a transverse channel 12 opening into a spray nozzle 13 provided on the external lateral wall of the push button 9.
  • liquid tends to remain in the diffuser 10, in particular in the transverse channel 12 and the nozzle 13. As it dries, the liquid would harden and would eventually cause blockage of the spraying device so that it would be necessary to perform a cleaning to allow correct operation again.
  • the invention provides means E for expelling the liquid contained inside the diffuser 10, and in particular inside the channel 12 and the nozzle 13, at the end of each use. ; these expulsion means E are actuated by the push button 9 and integrated, at least in part, in this push button.
  • the means E for expelling the liquid comprise means C for compressing air actuated by depressing the push button 9, and means F for discharging the compressed air through the channel 12 of the diffuser and the nozzle 13; these evacuation means F are put into action at the end of depressing the push button 9.
  • the air compression means C comprise a deformable envelope 14 advantageously constituted by an accordion bellows 15, of flexible material, in particular of elastomeric material.
  • the bellows 15 comprises, at its lower part, a flange 16 which covers the edge 4 of the opening and is hooked onto it, so that the bellows 15 is thus fixed on this edge 4.
  • the other end 17 of the bellows 15, in the form of a cylindrical skirt, is tightly connected to the push button 9, by engagement with tightening in an annular slot provided in the lower part of this push button.
  • the bellows 15 delimits a closed chamber 18 in which the pump body 6 and the control member are located.
  • the push button 9 which closes the chamber 18 upwards acts like a piston when it is pressed in. and compresses the air contained in room 18.
  • the means F for evacuating the compressed air comprise passage means, provided in the push button 9, formed by a longitudinal pipe 19 parallel to the axial channel 11 and to the direction of insertion of the push button, and a transverse pipe 20 connected, on one side, to the transverse channel 12 of the diffuser and communicating, on the other side, with a housing 21 connected to the pipe 19.
  • the housing 21 opens onto the upper surface of the push button 9.
  • a plug 22 is provided to close the housing 21 to the outside.
  • the discharge means F further comprise means for closing the channel 19 constituted by a valve 23, with a ball 24, the seat of which is located in the housing 21, at the outlet of the channel 19.
  • the force developed by the spring 25 is sufficient to keep the ball 24 in the closed position, pressing against its seat, when the push button 9 is pressed and the air is compressed in the chamber 18.
  • the means F for evacuating the compressed air further comprise means 26 for controlling the opening of the valve 23 at the end of depressing the push-button 9.
  • the control means 26 comprise a stop constituted by a rod 27, integral with an annular ring 27 a , for example made of plastic, blocked in the cup 3 a .
  • the rod 27 is substantially parallel to the axis of the container, but offset radially relative to this axis.
  • the rod 27 is suitable for entering the channel 19 with sufficient play to let the air pass.
  • the length of the rod 27 is such that at the end of depressing the push-button 9 it comes into contact with the ball 24 and lifts it from its seat, thus ensuring the opening of the valve 23.
  • An air return valve is provided to allow the entry of air into the chamber 18 when it is increasing in volume, and to close and prevent any exit from air during compression.
  • the device 1 In the rest position, the device 1 is in the configuration shown in FIG. 1.
  • the chamber 18 contains air at atmospheric pressure and the valve 23 is closed.
  • this push-button 9 goes down and pushes in the control member 7 causing the pumping of the liquid L which crosses the axial channel 11 then goes through the transverse channel 12 towards the spray nozzle 13 to exit in the form of a jet 28 of fine droplets.
  • the valve 23 remains closed and the air trapped in the chamber 18 is compressed by pressing the pusher 9.
  • the rod 27 comes to lift the ball 24 which allows the compressed air from the chamber 18 to escape, through the transverse channel 2, to through the other transverse channel 12 and through the nozzle 13 by pushing outwards the liquid which may have remained in the channel 12 and the nozzle 13.
  • the chamber 18 increases in volume and fills with air, coming from outside, through the return valve d 'air, not visible in the drawing.

Abstract

The invention relates to a device for spraying a liquid capable of hardening on drying, contained in a container (2) fitted with an opening (3) equipped with a pump (5) suitable to be actuated with the aid of a push button (9), and in causing the pumped liquid to pass through a diffuser (10), comprising a spray nozzle (13), provided in the push button. The device includes means (E) for expelling the liquid contained inside the diffuser (10), which means are integrated, at least partially, in this push button, and comprising compressed-air means (C) and means (F) for discharging the compressed air through the diffuser (10), which means are actuated by pushing in the push button, the said means (F) for discharging the compressed air comprising passage means (19, 20) provided in the push button and means (23) for closing off these passage means. <IMAGE>

Description

L'invention est relative à un dispositif pour la pulvérisation d'un liquide susceptible de durcir en séchant, contenu dans un récipient muni d'une ouverture équipée d'une pompe propre à être actionnée à l'aide d'un bouton-poussoir surmontant le corps de pompe, et à faire passer le liquide pompe à travers un diffuseur, comprenant une buse de pulvérisation , prévu dans le bouton-poussoir.The invention relates to a device for spraying a liquid capable of hardening on drying, contained in a container provided with an opening equipped with a pump capable of being actuated using a push button overcoming the pump body, and passing the pump liquid through a diffuser, comprising a spray nozzle, provided in the push-button.

L'invention concerne plus particulièrement, mais non exclusivement, un tel dispositif pour la pulvérisation d'une laque pour les cheveux.The invention relates more particularly, but not exclusively, to such a device for spraying a hair spray.

On sait qu'un inconvénient important d'un tel dispositif réside dans son bouchage dû au séchage et au durcissement du liquide qui reste dans le diffuseur après utilisation.It is known that an important drawback of such a device lies in its blockage due to the drying and hardening of the liquid which remains in the diffuser after use.

Ce problème a déjà éte évoqué dans FR-A-2 070 951 qui concerne toutefois un dispositif de pulvérisation d'un type différent de celui de l'invention puisqu'il comporte une poire élastique propre à éjecter de l'air au voisinage de la sortie d'un tube plongeur de manière à aspirer, par effet de trompe, le liquide qui est ainsi pulvérisé sous forme d'un nuage de fines gouttelettes en suspension dans l'air.This problem has already been mentioned in FR-A-2 070 951, which however relates to a spraying device of a type different from that of the invention since it comprises an elastic bulb capable of ejecting air in the vicinity of the exit from a dip tube so as to suck in, by suction effect, the liquid which is thus sprayed in the form of a cloud of fine droplets suspended in the air.

Le dispositif de pulvérisation vise par l'invention comprend une pompe permettant d'aspirer et de pulvériser uniquement le liquide.The spraying device aimed by the invention comprises a pump making it possible to suction and spray only the liquid.

L'invention est relative, plus particulièrement, à un dispositif, pour la pulvérisation d'un liquide susceptible de durcir en séchant, du genre défini précédemment, comportant des moyens d'expulsion du liquide contenu à l'intérieur du diffuseur, intégrés, au moins en partie, dans ce bouton poussoir, et comprenant des moyens de compression d'air et des moyens d'évacuation de l'air comprimé à travers le diffuseur, actionnés par l'enfoncement du bouton-poussoir, lesdits moyens d'évacuation de l'air comprimé comprenant des moyens de passage prévus dans le bouton-poussoir et des moyens d'obturation de ces moyens de passage.The invention relates, more particularly, to a device, for spraying a liquid capable of hardening on drying, of the kind defined above, comprising means for expelling the liquid contained inside the diffuser, integrated into the less in part, in this push button, and comprising air compression means and means for evacuating the compressed air through the diffuser, actuated by depressing the push button, said means for evacuating compressed air comprising passage means provided in the push-button and means for closing these passage means.

Un tel dispositif est décrit dans EP-A-0 309 010, mais permet de parfaire la pulvérisation du liquide à travers le diffuseur, le flux d'air comprimé venant heurter le liquide distribué à la sortie de la buse de pulvérisation. Rien n'est prévu, dans ce document, pour éviter le bouchage de la buse dû au séchage et au durcissement du liquide qui y reste après utilisation.Such a device is described in EP-A-0 309 010, but makes it possible to perfect the spraying of the liquid through the diffuser, the flow of compressed air coming to strike the liquid distributed at the outlet of the nozzle. spray. Nothing is provided in this document to avoid clogging of the nozzle due to drying and hardening of the liquid which remains there after use.

EP-A-0 451 615, publié postérieurement à la date de priorité de la présente demande, décrit un dispositif, pour la pulvérisation d'un liquide, comportant des moyens pour nettoyer le diffuseur. Malheureusement, ce dispositif prévoit une fuite d'air permanente, dès la mise en pression de l'air par action sur le bouton-poussoir, un souffle d'air plus important étant prévu en fin de course du bouton-poussoir pour le nettoyage de la buse ; une telle disposition conduit à une pression de nettoyage relativement faible et le nettoyage n'est pas efficace.EP-A-0 451 615, published after the priority date of this application, describes a device for spraying a liquid, comprising means for cleaning the diffuser. Unfortunately, this device provides for a permanent air leak, as soon as the air is pressurized by pressing the push button, a greater breath of air being provided at the end of the push button for cleaning the the nozzle ; such an arrangement results in a relatively low cleaning pressure and cleaning is not effective.

L'invention a pour but, surtout, de fournir un dispositif du type défini précédemment, dans lequel les risques de bouchage par séchage du liquide sont considérablement réduits, et de préférence éliminés, et qui soit d'une utilisation fiable et d'une réalisation simple et économique.The object of the invention is, above all, to provide a device of the type defined above, in which the risks of clogging by drying of the liquid are considerably reduced, and preferably eliminated, and which is of reliable use and of realization simple and economical.

Selon l'invention, un dispositif pour la pulvérisation d'un liquide susceptible de durcir en séchant, en particulier une laque, contenu dans un récipient muni d'une ouverture équipée d'une pompe propre à être actionnée à l'aide d'un bouton-poussoir surmontant le corps de pompe, et à faire passer le liquide pompe à travers un diffuseur, comprenant une buse de pulvérisation, prévu dans le bouton-poussoir, dispositif comportant des moyens d'expulsion du liquide contenu à l'intérieur du diffuseur, intégrés, au moins en partie, dans ce bouton poussoir, et comprenant des moyens de compression d'air et des moyens d'évacuation de l'air comprimé à travers le diffuseur, actionnés par l'enfoncement du bouton-poussoir, lesdits moyens d'évacuation de l'air comprimé comprenant des moyens de passage prévus dans le bouton-poussoir et des moyens d'obturation de ces moyens de passage, est caractérisé par le fait que lesdits moyens de commande de l'ouverture desdits moyens d'obturation sont commandés en fin d'enfoncement du bouton-poussoir, les moyens d'obturation comprenant un clapet soumis à l'action de moyens élastiques, la force développée par ces moyens élastiques étant suffisante pour maintenir ce clapet fermé malgré la pression d'air développée par les moyens de compression d'air lors de l'enfoncement du bouton-poussoir.According to the invention, a device for spraying a liquid capable of hardening by drying, in particular a lacquer, contained in a container provided with an opening equipped with a pump suitable for being actuated using a push button surmounting the pump body, and passing the pump liquid through a diffuser, comprising a spray nozzle, provided in the push button, device comprising means for expelling the liquid contained inside the diffuser , integrated, at least in part, into this push button, and comprising air compression means and means for evacuating the compressed air through the diffuser, actuated by pressing the push button, said means for evacuating the compressed air comprising passage means provided in the push-button and means for blocking these passage means, is characterized in that said means for controlling the opening of said means for obtaining uration are controlled at the end of depressing the push button, the shutter means comprising a valve subjected to the action of elastic means, the force developed by these elastic means being sufficient to keep this valve closed despite the air pressure developed by the air compression means when the push button is pressed.

De préférence, les moyens de compression d'air comprennent une enveloppe déformable fixée sur le bord de l'ouverture du récipient et reliée au bouton-poussoir de manière à déterminer une chambre fermée, le bouton-poussoir agissant à la manière d'un piston lors de son enfoncement, pour comprimer l'air contenu dans cette chambre.Preferably, the air compression means comprise a deformable envelope fixed on the edge of the container opening and connected to the push button so as to determine a closed chamber, the push button acting in the manner of a piston. when pressed, to compress the air contained in this room.

Les moyens de passage prévus dans le bouton-poussoir communiquent, à une extrémité, avec la susdite chambre et débouchent, à leur autre extrémité, dans le diffuseur vers la susdite buse.The passage means provided in the push button communicate, at one end, with the aforesaid chamber and open, at their other end, in the diffuser towards the aforesaid nozzle.

Les moyens de passage comprennent, avantageusement, une canalisation longitudinale parallèle à l'axe du récipient et à la direction d'enfoncement du bouton-poussoir, et une conduite transversale reliée, d'un côté, à un canal du diffuseur pour la sortie du liquide vers la buse et communiquant, de l'autre côté, avec un logement relié à la susdite canalisation longitudinale, les susdits moyens d'obturation étant disposés dans ce logement.The passage means advantageously comprise a longitudinal pipe parallel to the axis of the container and to the direction of insertion of the push button, and a transverse pipe connected, on one side, to a channel of the diffuser for the outlet of the liquid towards the nozzle and communicating, on the other side, with a housing connected to the aforesaid longitudinal pipe, the aforesaid closure means being disposed in this housing.

Les moyens d'obturation comprennent, de préférence, un clapet dont le siège est situé dans le susdit logement.The closure means preferably include a valve, the seat of which is located in the above-mentioned housing.

Les moyens de commande de l'ouverture des moyens d'obturation peuvent comprendre une butée propre à venir s'appuyer contre le clapet pour l'écarter de son siège en fin de course d'enfoncement du bouton-poussoir.The means for controlling the opening of the shutter means may include a stop suitable for coming to bear against the valve to move it away from its seat at the end of the push button pushing stroke.

La butée peut être constituée par une tige sensiblement parallèle à l'axe du récipient mais décalée radialement relativement à cet axe, propre à s'engager dans ladite canalisation longitudinale qui débouche dans le logement équipé du clapet.The stop may be constituted by a rod substantially parallel to the axis of the container but offset radially relative to this axis, suitable for engaging in said longitudinal pipe which opens into the housing equipped with the valve.

L'enveloppe déformable délimitant la chambre fermée est avantageusement constituée par un soufflet en accordéon, en une matière souple, comprenant à sa partie inférieure une collerette venant coiffer le bord de l'ouverture du récipient et reliée à son autre extrémité de manière étanche au bouton-poussoir.The deformable envelope delimiting the closed chamber is advantageously constituted by an accordion bellows, made of a flexible material, comprising at its lower part a flange covering the edge of the opening of the container and connected at its other end in a sealed manner to the button -pusher.

L'invention est également relative à un bouton-poussoir pour un dispositif tel que défini précédemment.The invention also relates to a push button for a device as defined above.

L'invention consiste, mises à part les dispositions exposées cidessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après à propos d'un exemple de réalisation décrit avec référence aux dessins ci-annexés, mais qui n'est nullement limitatif.The invention consists, apart from the arrangements set out above, in a certain number of other arrangements which will be more explicitly discussed below in connection with an exemplary embodiment described with reference to the accompanying drawings, but which is in no way limiting.

La figure 1, de ces dessins, est une coupe schématique de l'extrémité supérieure d'un récipient de liquide équipé d'un dispositif pour la pulvérisation conforme à l'invention.Figure 1 of these drawings is a schematic section of the upper end of a liquid container equipped with a device for spraying according to the invention.

La figure 2 montre le dispositif de la figure 1 au cours de la pulvérisation.Figure 2 shows the device of Figure 1 during spraying.

La figure 3 enfin, montre, semblablement à la figure 1, le dispositif à la fin d'une utilisation, le bouton-poussoir étant complètement enfoncé.Figure 3 finally shows, similar to Figure 1, the device at the end of use, the push button being fully depressed.

En se reportant à la figure 1 des dessins, on peut voir un dispositif 1 pour la pulvérisation d'un liquide L contenu dans un récipient 2 constituant un flacon. Le liquide L est susceptible de durcir en séchant et est composé, par exemple, d'un solvant volatil et d'un produit dissous dans ce solvant. Un exemple de tel liquide L est celui des laques destinées à être appliquées sur les cheveux.Referring to Figure 1 of the drawings, one can see a device 1 for spraying a liquid L contained in a container 2 constituting a bottle. The liquid L is capable of hardening on drying and is composed, for example, of a volatile solvent and of a product dissolved in this solvent. An example of such a liquid L is that of lacquers intended to be applied to the hair.

Le récipient 2, réalisé par exemple en alliage léger, est muni d'une ouverture 3 en partie haute dont le bord 4 est roulé.The container 2, made for example of light alloy, is provided with an opening 3 in the upper part whose edge 4 is rolled.

L'ouverture 3 est équipée d'une pompe 5 manuelle, schématiquement représentée. Le corps 6 de la pompe est bloqué dans une coupelle 3a sertie sur le bord 4 de l'ouverture 3, tandis qu'un organe 7 de commande d'un piston de la pompe fait saillie vers le haut. Un tube plongeur 8 partant de la pompe 5 s'étend jusqu'au fond du récipient 2.The opening 3 is equipped with a manual pump 5, schematically shown. The body 6 of the pump is blocked in a cup 3 is crimped on the edge 4 of the opening 3, while a member 7 for controlling a piston of the pump is projecting upwards. A dip tube 8 extending from the pump 5 extends to the bottom of the container 2.

Un bouton-poussoir 9 surmontant le corps de pompe et prenant appui, par une collerette de centrage, contre l'organe de commande 7, est prévu pour permettre d'actionner la pompe 5 par enfoncement de l'organe de commande 7. Cet organe 7 est rappelé vers le haut par des moyens élastiques non visibles sur le dessin.A push button 9 surmounting the pump body and bearing, by a centering flange, against the control member 7, is provided to enable the pump 5 to be actuated by depressing the control member 7. This member 7 is recalled upwards by elastic means not visible in the drawing.

L'organe de commande 7 est traversé par un passage (non visible sur le dessin) qui permet au liquide pompé de passer à travers un diffuseur 10 prévu dans le bouton-poussoir 9. Ce diffuseur 10 comprend un canal axial 11 partant de l'extrémité supérieure de l'organe de commande 7 et communiquant avec le passage prévu dans cet organe 7 ; en partie haute, le canal 11 communique avec un canal transversal 12 débouchant dans une buse de pulvérisation 13 prévue sur la paroi latérale extérieure du bouton-poussoir 9. Après chaque utilisation, du liquide a tendance à demeurer dans le diffuseur 10, en particulier dans le canal transversal 12 et la buse 13. En séchant, le liquide durcirait et finirait par provoquer un bouchage du dispositif de pulvérisation de sorte qu'il faudrait procéder à un nettoyage pour permettre à nouveau le fonctionnement correct.The control member 7 is crossed by a passage (not visible in the drawing) which allows the pumped liquid to pass through a diffuser 10 provided in the push button 9. This diffuser 10 comprises an axial channel 11 starting from the upper end of the control member 7 and communicating with the passage provided in this member 7; in the upper part, the channel 11 communicates with a transverse channel 12 opening into a spray nozzle 13 provided on the external lateral wall of the push button 9. After each in use, liquid tends to remain in the diffuser 10, in particular in the transverse channel 12 and the nozzle 13. As it dries, the liquid would harden and would eventually cause blockage of the spraying device so that it would be necessary to perform a cleaning to allow correct operation again.

Pour éviter cet inconvénient particulièrement gênant, l'invention prévoit des moyens E d'expulsion du liquide contenu à l'intérieur du diffuseur 10, et en particulier à l'intérieur du canal 12 et de la buse 13, à la fin de chaque utilisation ; ces moyens d'expulsion E sont actionnés par le bouton-poussoir 9 et intégrés, au moins en partie, dans ce bouton-poussoir.To avoid this particularly inconvenient drawback, the invention provides means E for expelling the liquid contained inside the diffuser 10, and in particular inside the channel 12 and the nozzle 13, at the end of each use. ; these expulsion means E are actuated by the push button 9 and integrated, at least in part, in this push button.

Les moyens E d'expulsion du liquide comprennent des moyens C de compression d'air actionnés par enfoncement du bouton-poussoir 9, et des moyens F d'évacuation de l'air comprimé à travers le canal 12 du diffuseur et la buse 13 ; ces moyens d'évacuation F sont mis en action en fin d'enfoncement du bouton-poussoir 9.The means E for expelling the liquid comprise means C for compressing air actuated by depressing the push button 9, and means F for discharging the compressed air through the channel 12 of the diffuser and the nozzle 13; these evacuation means F are put into action at the end of depressing the push button 9.

Les moyens de compression d'air C comprennent une enveloppe déformable 14 avantageusement constituée par un soufflet 15 en accordéon, en matière souple, notamment en matière élastomère. Le soufflet 15 comprend, à sa partie inférieure, une collerette 16 venant coiffer le bord 4 de l'ouverture et s'y accrocher, de sorte que le soufflet 15 se trouve ainsi fixé sur ce bord 4.The air compression means C comprise a deformable envelope 14 advantageously constituted by an accordion bellows 15, of flexible material, in particular of elastomeric material. The bellows 15 comprises, at its lower part, a flange 16 which covers the edge 4 of the opening and is hooked onto it, so that the bellows 15 is thus fixed on this edge 4.

L'autre extrémité 17 du soufflet 15, en forme de jupe cylindrique, est reliée de manière étanche au bouton-poussoir 9, par engagement avec serrage dans une fente annulaire prévue à la partie inférieure de ce bouton-poussoir. Le soufflet 15 délimite une chambre fermée 18 dans laquelle se trouvent le corps de pompe 6 et l'organe de commande 7. Le bouton-poussoir 9 qui ferme la chambre 18 vers le haut agit à la manière d'un piston lors de son enfoncement et comprime l'air contenu dans la chambre 18.The other end 17 of the bellows 15, in the form of a cylindrical skirt, is tightly connected to the push button 9, by engagement with tightening in an annular slot provided in the lower part of this push button. The bellows 15 delimits a closed chamber 18 in which the pump body 6 and the control member are located. The push button 9 which closes the chamber 18 upwards acts like a piston when it is pressed in. and compresses the air contained in room 18.

Les moyens F d'évacuation de l'air comprimé comprennent des moyens de passage, prévus dans le bouton-poussoir 9, formés par une canalisation 19 longitudinale parallèle au canal axial 11 et à la direction d'enfoncement du bouton-poussoir, et une conduite transversale 20 reliée, d'un côté, au canal transversal 12 du diffuseur et communiquant, de l'autre côté, avec un logement 21 relié à la canalisation 19. Le logement 21 s'ouvre sur la surface supérieure du bouton-poussoir 9. Un bouchon 22 est prévu pour fermer le logement 21 vers l'extérieur.The means F for evacuating the compressed air comprise passage means, provided in the push button 9, formed by a longitudinal pipe 19 parallel to the axial channel 11 and to the direction of insertion of the push button, and a transverse pipe 20 connected, on one side, to the transverse channel 12 of the diffuser and communicating, on the other side, with a housing 21 connected to the pipe 19. The housing 21 opens onto the upper surface of the push button 9. A plug 22 is provided to close the housing 21 to the outside.

Les moyens d'évacuation F comprennent en outre des moyens d'obturation du canal 19 constitués par un clapet 23, à bille 24, dont le siège est situé dans le logement 21, au débouché du canal 19. Un ressort 25, prenant appui contre le fond du bouchon 22, applique la bille 24 contre son siège de manière à fermer la communication entre le canal 19 et le logement 21. La force développée par le ressort 25 est suffisante pour maintenir la bille 24 en position fermée, en appui contre son siège, lorsque le bouton-poussoir 9 est enfoncé et que l'air est comprimé dans la chambre 18.The discharge means F further comprise means for closing the channel 19 constituted by a valve 23, with a ball 24, the seat of which is located in the housing 21, at the outlet of the channel 19. A spring 25, bearing against the bottom of the plug 22, applies the ball 24 against its seat so as to close the communication between the channel 19 and the housing 21. The force developed by the spring 25 is sufficient to keep the ball 24 in the closed position, pressing against its seat, when the push button 9 is pressed and the air is compressed in the chamber 18.

Les moyens F d'évacuation de l'air comprimé comprennent, en outre, des moyens 26 de commande de l'ouverture du clapet 23 en fin d'enfoncement du bouton-poussoir 9.The means F for evacuating the compressed air further comprise means 26 for controlling the opening of the valve 23 at the end of depressing the push-button 9.

Les moyens de commande 26 comprennent une butée constituée par une tige 27, solidaire d'une bague annulaire 27a, par exemple en matière plastique, bloquée dans la coupelle 3a. La tige 27 est sensiblement parallèle à l'axe du récipient, mais décalée radialement relativement à cet axe. La tige 27 est propre à entrer dans le canal 19 avec un jeu suffisant pour laisser passer l'air. La longueur de la tige 27 est telle qu'en fin d'enfoncement du bouton-poussoir 9 elle vient au contact de la bille 24 et la soulève de son siège, assurant ainsi l'ouverture du clapet 23.The control means 26 comprise a stop constituted by a rod 27, integral with an annular ring 27 a , for example made of plastic, blocked in the cup 3 a . The rod 27 is substantially parallel to the axis of the container, but offset radially relative to this axis. The rod 27 is suitable for entering the channel 19 with sufficient play to let the air pass. The length of the rod 27 is such that at the end of depressing the push-button 9 it comes into contact with the ball 24 and lifts it from its seat, thus ensuring the opening of the valve 23.

Une soupape de reprise d'air, non visible sur le dessin, est prévue pour permettre l'entrée d'air dans la chambre 18 lorsqu'elle est en cours d'augmentation de volume, et pour se fermer et empêcher toute sortie d'air lors de la compression.An air return valve, not visible in the drawing, is provided to allow the entry of air into the chamber 18 when it is increasing in volume, and to close and prevent any exit from air during compression.

Ceci étant, le fonctionnement du dispositif de pulvérisation est le suivant.However, the operation of the spraying device is as follows.

En position de repos, le dispositif 1 est dans la configuration représentée sur la figure 1. La chambre 18 contient de l'air à la pression atmosphérique et le clapet 23 est fermé. Lorsque l'utilisateur appuie sur le bouton-poussoir 9, comme représenté sur la figure 2, ce bouton-poussoir 9 descend et enfonce l'organe de commande 7 provoquant le pompage du liquide L qui traverse le canal axial 11 puis se dirige par le canal transversal 12 vers la buse de pulvérisation 13 pour sortir sous forme d'un jet 28 de fines gouttelettes. Le clapet 23 reste fermé et l'air emprisonné dans la chambre 18 est comprimé par l'enfoncement du poussoir 9.In the rest position, the device 1 is in the configuration shown in FIG. 1. The chamber 18 contains air at atmospheric pressure and the valve 23 is closed. When the user presses the push-button 9, as shown in FIG. 2, this push-button 9 goes down and pushes in the control member 7 causing the pumping of the liquid L which crosses the axial channel 11 then goes through the transverse channel 12 towards the spray nozzle 13 to exit in the form of a jet 28 of fine droplets. The valve 23 remains closed and the air trapped in the chamber 18 is compressed by pressing the pusher 9.

En fin d'enfoncement du bouton-poussoir 9, comme illustré sur la figure 3, la tige 27 vient soulever la bille 24 ce qui permet à l'air comprimé de la chambre 18 de s'échapper, par le canal transversal 2, à travers l'autre canal transversal 12 et à travers la buse 13 en poussant vers l'extérieur le liquide qui a pu rester dans le canal 12 et la buse 13.At the end of pressing the push-button 9, as illustrated in FIG. 3, the rod 27 comes to lift the ball 24 which allows the compressed air from the chamber 18 to escape, through the transverse channel 2, to through the other transverse channel 12 and through the nozzle 13 by pushing outwards the liquid which may have remained in the channel 12 and the nozzle 13.

A la fin de chaque enfoncement du bouton-poussoir 9, il y a ainsi balayage du liquide restant qui est expulsé vers l'extérieur de sorte que les risques de bouchage du dispositif de pulvérisation par suite d'un séchage de liquide restant sont considérablement réduits, voire supprimés.At the end of each pressing of the push button 9, there is thus a sweeping of the remaining liquid which is expelled towards the outside so that the risks of clogging of the spraying device due to drying of the remaining liquid are considerably reduced. , or even deleted.

Lorsque le bouton-poussoir 9 est relâché, il remonte sous l'action des moyens élastiques sollicitant l'organe 7. La chambre 18 augmente de volume et se remplit d'air, provenant de l'extérieur, à travers la soupape de reprise d'air, non visible sur le dessin.When the push button 9 is released, it rises under the action of elastic means urging the member 7. The chamber 18 increases in volume and fills with air, coming from outside, through the return valve d 'air, not visible in the drawing.

Claims (9)

Dispositif pour la pulvérisation d'un liquide susceptible de durcir en séchant, en particulier une laque, contenu dans un récipient (2) muni d'une ouverture (3) équipée d'une pompe (5) propre à être actionnée à l'aide d'un bouton-poussoir (9) surmontant le corps de pompe (6), et à faire passer le liquide pompé à travers un diffuseur (10), comprenant une buse (13) de pulvérisation, prévu dans le bouton-poussoir, dispositif comportant des moyens (E) d'expulsion du liquide contenu à l'intérieur du diffuseur (10), intégrés, au moins en partie, dans ce bouton poussoir, et comprenant des moyens (C) de compression d'air et des moyens (F) d'évacuation de l'air comprimé à travers le diffuseur (10), actionnés par l'enfoncement du bouton-poussoir, lesdits moyens (F) d'évacuation de l'air comprimé comprenant des moyens de passage (19, 20) prévus dans le bouton-poussoir et des moyens d'obturation (23) de ces moyens de passage, caractérisé par le fait que lesdits moyens de commande (26) de l'ouverture desdits moyens d'obturation (23) sont commandés en fin d'enfoncement du bouton-poussoir, les moyens d'obturation (23) comprenant un clapet (23) soumis à l'action de moyens élastiques (25), la force développée par ces moyens élastiques étant suffisante pour maintenir ce clapet (23) fermé malgré la pression d'air développée par les moyens (C) de compression d'air lors de l'enfoncement du bouton-poussoir.Device for spraying a liquid capable of hardening on drying, in particular a lacquer, contained in a container (2) provided with an opening (3) equipped with a pump (5) suitable for being actuated using a push button (9) surmounting the pump body (6), and passing the pumped liquid through a diffuser (10), comprising a spray nozzle (13), provided in the push button, device comprising means (E) for expelling the liquid contained inside the diffuser (10), integrated, at least in part, in this push button, and comprising means (C) for compressing air and means ( F) for evacuating the compressed air through the diffuser (10), actuated by depressing the push-button, said means (F) for evacuating the compressed air comprising passage means (19, 20 ) provided in the push button and closure means (23) of these passage means, characterized in that said means control (26) of the opening of said shutter means (23) are controlled at the end of pressing the push button, the shutter means (23) comprising a valve (23) subjected to the action of elastic means (25), the force developed by these elastic means being sufficient to keep this valve (23) closed despite the air pressure developed by the air compression means (C) when the push button is pressed. Dispositif selon la revendication 1, caractérisé par le fait que les moyens (C) de compression d'air comprennent une enveloppe déformable (14) fixée sur le bord (4) de l'ouverture (3) du récipient et reliée au bouton-poussoir (9) de manière à déterminer une chambre fermée (18), le bouton-poussoir (9) agissant à la manière d'un piston lors de son enfoncement, pour comprimer l'air contenu dans cette chambre (18).Device according to claim 1, characterized in that the air compression means (C) comprise a deformable envelope (14) fixed on the edge (4) of the opening (3) of the container and connected to the push button (9) so as to determine a closed chamber (18), the push button (9) acting in the manner of a piston when it is depressed, to compress the air contained in this chamber (18). Dispositif selon la revendication 2, caractérisé par le fait que les moyens de passage (19, 20) prévus dans le bouton-poussoir communiquent, à une extrémité, avec la susdite chambre (18) et débouchent, à leur autre extrémité, dans le diffuseur (10) vers la susdite buse (13) .Device according to claim 2, characterized in that the passage means (19, 20) provided in the push-button communicate, at one end, with the said chamber (18) and open, at their other end, into the diffuser (10) to the above nozzle (13). Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que les moyens de passage (19, 20) comprennent une canalisation longitudinale (19) parallèle à l'axe du récipient (2) et à la direction d'enfoncement du bouton-poussoir, et une conduite transversale (20) reliée, d'un côté, à un canal (12) du diffuseur (10) pour la sortie du liquide vers la buse (13) et communiquant, de l'autre côté, avec un logement (21) relié à la susdite canalisation longitudinale (19), les susdits moyens d'obturation (23) étant disposés dans ce logement.Device according to one of claims 1 to 3, characterized in that the passage means (19, 20) comprise a longitudinal pipe (19) parallel to the axis of the container (2) and to the direction of insertion of the push button, and a transverse pipe (20) connected, on one side, to a channel (12) of the diffuser ( 10) for the outlet of the liquid towards the nozzle (13) and communicating, on the other side, with a housing (21) connected to the said longitudinal pipe (19), the aforementioned closure means (23) being arranged in this accommodation. Dispositif selon la revendication 4, caractérisé par le fait que le clapet (23) a un siège situé dans le susdit logement (21).Device according to claim 4, characterized in that the valve (23) has a seat located in the above-mentioned housing (21). Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que les moyens (26) de commande de l'ouverture des moyens d'obturation comprennent une butée (27) propre à venir s'appuyer contre le clapet (23) pour l'écarter de son siège en fin de course d'enfoncement du bouton-poussoir (9).Device according to one of claims 1 to 5, characterized in that the means (26) for controlling the opening of the shutter means comprise a stop (27) capable of coming to bear against the valve (23) to move it away from its seat at the end of the push-button travel (9). Dispositif selon la revendication 6, caractérisé par le fait que la butée (27) est constituée par une tige sensiblement parallèle à l'axe du récipient mais décalée radialement relativement à cet axe, propre à s'engager dans ladite canalisation longitudinale (19) qui débouche dans le logement (21) équipé du clapet.Device according to claim 6, characterized in that the stop (27) is constituted by a rod substantially parallel to the axis of the container but offset radially relative to this axis, suitable for engaging in said longitudinal pipe (19) which opens into the housing (21) fitted with the valve. Dispositif selon l'une quelconque des revendications 2 à 7, caractérisé par le fait que l'enveloppe déformable délimitant la chambre fermée (18) est constituée par un soufflet (15) en accordéon, en une matière souple, comprenant à sa partie inférieure une collerette (16) venant coiffer le bord de l'ouverture (3) du récipient et reliée à son autre extrémité (17) de manière étanche au bouton-poussoir (9).Device according to any one of Claims 2 to 7, characterized in that the deformable envelope delimiting the closed chamber (18) consists of an accordion bellows (15), of a flexible material, comprising at its lower part a collar (16) covering the edge of the opening (3) of the container and connected at its other end (17) in a sealed manner to the push button (9). Bouton-poussoir (9) pour un dispositif de pulvérisation selon l'une quelconque des révendications précédentes.Push button (9) for a spraying device according to any one of the preceding claims.
EP92401539A 1991-06-17 1992-06-04 Spray device for a liquid, susceptible to hardening upon drying, in particular a lacquer Expired - Lifetime EP0519779B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9107361 1991-06-17
FR9107361A FR2677617B1 (en) 1991-06-17 1991-06-17 DEVICE FOR SPRAYING A LIQUID LIKELY TO CURE BY DRYING, PARTICULARLY A LACQUER, AND PUSH-BUTTON FOR SUCH A DEVICE.

Publications (2)

Publication Number Publication Date
EP0519779A1 true EP0519779A1 (en) 1992-12-23
EP0519779B1 EP0519779B1 (en) 1995-04-26

Family

ID=9413907

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Application Number Title Priority Date Filing Date
EP92401539A Expired - Lifetime EP0519779B1 (en) 1991-06-17 1992-06-04 Spray device for a liquid, susceptible to hardening upon drying, in particular a lacquer

Country Status (4)

Country Link
EP (1) EP0519779B1 (en)
DE (1) DE69202201T2 (en)
ES (1) ES2071452T3 (en)
FR (1) FR2677617B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004054723A1 (en) * 2002-12-13 2004-07-01 Incro Limited Improvements in or relating to pump-action nozzle devices
WO2007042794A2 (en) * 2005-10-11 2007-04-19 Incro Limited Pump dispenser and method of manufacturing a pump dispenser
FR3079428A1 (en) * 2018-04-03 2019-10-04 Aptar France Sas HEAD OF DISTRIBUTION OF FLUID PRODUCT.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2792913B1 (en) 1999-04-29 2001-06-01 Oreal DEVICE FOR ACTUATING A DISPENSING MEMBER IN PARTICULAR A VALVE, AND ASSEMBLY EQUIPPED WITH THE OPERATING DEVICE ACCORDING TO THE INVENTION

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2070951A5 (en) * 1969-12-05 1971-09-17 Jaffreo Albert
EP0309010A1 (en) * 1987-07-08 1989-03-29 Ing. Erich Pfeiffer GmbH & Co. KG Manual fluid dispenser
EP0451615A2 (en) * 1990-04-10 1991-10-16 Ing. Erich Pfeiffer GmbH & Co. KG Discharge device for at least one medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2070951A5 (en) * 1969-12-05 1971-09-17 Jaffreo Albert
EP0309010A1 (en) * 1987-07-08 1989-03-29 Ing. Erich Pfeiffer GmbH & Co. KG Manual fluid dispenser
EP0451615A2 (en) * 1990-04-10 1991-10-16 Ing. Erich Pfeiffer GmbH & Co. KG Discharge device for at least one medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004054723A1 (en) * 2002-12-13 2004-07-01 Incro Limited Improvements in or relating to pump-action nozzle devices
WO2007042794A2 (en) * 2005-10-11 2007-04-19 Incro Limited Pump dispenser and method of manufacturing a pump dispenser
WO2007042794A3 (en) * 2005-10-11 2007-05-24 Incro Ltd Pump dispenser and method of manufacturing a pump dispenser
FR3079428A1 (en) * 2018-04-03 2019-10-04 Aptar France Sas HEAD OF DISTRIBUTION OF FLUID PRODUCT.
WO2019193275A1 (en) * 2018-04-03 2019-10-10 Aptar France Sas Fluid-product dispensing head

Also Published As

Publication number Publication date
DE69202201D1 (en) 1995-06-01
DE69202201T2 (en) 1996-01-18
FR2677617B1 (en) 1995-01-06
EP0519779B1 (en) 1995-04-26
ES2071452T3 (en) 1995-06-16
FR2677617A1 (en) 1992-12-18

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