EP0519779B1 - 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
EP0519779B1
EP0519779B1 EP92401539A EP92401539A EP0519779B1 EP 0519779 B1 EP0519779 B1 EP 0519779B1 EP 92401539 A EP92401539 A EP 92401539A EP 92401539 A EP92401539 A EP 92401539A EP 0519779 B1 EP0519779 B1 EP 0519779B1
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EP
European Patent Office
Prior art keywords
push button
valve
air
liquid
diffuser
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
EP92401539A
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German (de)
French (fr)
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EP0519779A1 (en
Inventor
Gérard Joulia
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LOreal SA
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LOreal SA
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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 by means of a push button surmounting the pump body, and passing the pumped 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 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 evacuation means compressed air comprising passage means provided in the push-button and means for closing these passage means, which means for closing include a valve subjected to the action of elastic means.
  • the invention relates more particularly, but not exclusively, to such a device for spraying a hair spray.
  • a device of this kind is described in EP-A-0 309 010, according to which the valve of the shutter means is capable of opening when sufficient air pressure is obtained during the depressing of the button. pusher; the compressed air can then escape through suitable channels and this compressed air is used to act on the flow of liquid generated by the pump.
  • An arrangement is provided, in some of the embodiments, so that after the end of pumping of the liquid, a residue of compressed air escapes through the channels used by the liquid to ensure cleaning of these channels, in order avoid clogging due to drying and hardening of the liquid which may remain in these channels after use.
  • the volume of compressed air used for cleaning the channels is relatively small, since part of this compressed air was evacuated and used during spraying.
  • the object of the invention is, above all, to provide a device of the type defined above in which the cleaning of the channels through which the liquid to be sprayed is improved is in order to significantly reduce the risks of clogging by drying of the liquid. It is further desired that such a device be of reliable use and of simple and economical production.
  • a device for spraying a liquid capable of hardening by drying in particular a lacquer, of the kind defined above, is characterized in that the force developed by the elastic means of the valve is sufficient to maintain this valve closed despite the air pressure developed by the air compression means when the push button is pressed, and that control means are provided to ensure the opening of the valve, these control means comprising a stop clean to come to rest against the valve to move it away from its seat at the end of the push button pushing stroke.
  • the volume of compressed air used to clean the liquid passage channels corresponds to practically all of the air which was trapped in the air compression means at the start of depressing the push button and the pressure of this air, at the end of depressing the push-button, can be relatively high.
  • the cleaning effect of the channels is thereby significantly enhanced.
  • 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 pushed in, to compress the air in this room.
  • the passage means provided in the push-button communicate, at one end, with the above-mentioned chamber and open, at their other end, in the diffuser towards the above-mentioned 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 to the nozzle and communicating, on the other side, with a housing connected to the aforesaid longitudinal pipe, the aforementioned closure means being disposed in this housing.
  • the seat of the shutter means valve is preferably located in the above-mentioned housing.
  • 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, in a flexible material, comprising at its lower part a flange coming to cover the edge of the opening of the container and connected at its other end in a sealed manner to the button -pusher.
  • 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 shows, similarly to FIG. 1, the device at the end of a use, the push button being completely 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 end up causing a clogging of the spraying device so that it would be necessary to carry out 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 clings to 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 while pushing outwards the liquid which may have remained in the channel 12 and the nozzle 13.
  • the chamber 18 increases in volume and is filled with air, coming from the outside, through the return valve d 'air, not visible in the drawing.

Landscapes

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

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 pompé 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, lesquels moyens d'obturation comprennent un clapet soumis à l'action de moyens élastiques.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 by means of a push button surmounting the pump body, and passing the pumped 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 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 evacuation means compressed air comprising passage means provided in the push-button and means for closing these passage means, which means for closing include a valve subjected to the action of elastic means.

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.

Un dispositif de ce genre est décrit dans EP-A-0 309 010, selon lequel le clapet des moyens d'obturation est propre à s'ouvrir lorsqu'une pression d'air suffisante est obtenue au cours de l' enfoncement du bouton-poussoir ; l'air comprimé peut alors s'échapper dans des canaux appropriés et cet air comprimé est utilisé pour agir sur l'écoulement de liquide engendré par la pompe. Un agencement est prévu, dans certains des modes de réalisation, pour qu'après la fin du pompage du liquide, un reste d'air comprimé s'échappe à travers les canaux utilisés par le liquide pour assurer un nettoyage de ces canaux, en vue d'éviter un bouchage dû au séchage et au durcissement du liquide qui peut rester dans ces canaux après utilisation. Toutefois, le volume d'air comprimé utilisé pour le nettoyage des canaux est relativement réduit, puisqu'une partie de cet air comprimé a été évacuée et utilisée au cours de la pulvérisation.A device of this kind is described in EP-A-0 309 010, according to which the valve of the shutter means is capable of opening when sufficient air pressure is obtained during the depressing of the button. pusher; the compressed air can then escape through suitable channels and this compressed air is used to act on the flow of liquid generated by the pump. An arrangement is provided, in some of the embodiments, so that after the end of pumping of the liquid, a residue of compressed air escapes through the channels used by the liquid to ensure cleaning of these channels, in order avoid clogging due to drying and hardening of the liquid which may remain in these channels after use. However, the volume of compressed air used for cleaning the channels is relatively small, since part of this compressed air was evacuated and used during spraying.

L'invention a pour but, surtout, de fournir un dispositif du type défini précédemment dans lequel le nettoyage des canaux où passe le liquide à pulvériser est amélioré afin de réduire sensiblement les risques de bouchage par séchage du liquide. On souhaite en outre qu'un tel dispositif 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 cleaning of the channels through which the liquid to be sprayed is improved is in order to significantly reduce the risks of clogging by drying of the liquid. It is further desired that such a device be of reliable use and of simple and economical production.

Selon l'invention, un dispositif pour la pulvérisation d'un liquide susceptible de durcir en séchant, en particulier une laque, du genre défini précédemment, est caractérisé par le fait que la force développée par les moyens élastiques du clapet est 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, et que des moyens de commande sont prévus pour assurer l'ouverture du clapet, ces moyens de commande comprenant 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.According to the invention, a device for spraying a liquid capable of hardening by drying, in particular a lacquer, of the kind defined above, is characterized in that the force developed by the elastic means of the valve is sufficient to maintain this valve closed despite the air pressure developed by the air compression means when the push button is pressed, and that control means are provided to ensure the opening of the valve, these control means comprising a stop clean to come to rest against the valve to move it away from its seat at the end of the push button pushing stroke.

Dans ces conditions, le volume d'air comprimé utilisé pour nettoyer les canaux de passage du liquide correspond pratiquement à la totalité de l'air qui était emprisonné dans les moyens de compression d'air au début de l'enfoncement du bouton-poussoir et la pression de cet air, en fin d'enfoncement du bouton-poussoir, peut être relativement élevée. L'effet de nettoyage des canaux s'en trouve sensiblement renforcé.Under these conditions, the volume of compressed air used to clean the liquid passage channels corresponds to practically all of the air which was trapped in the air compression means at the start of depressing the push button and the pressure of this air, at the end of depressing the push-button, can be relatively high. The cleaning effect of the channels is thereby significantly enhanced.

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 pushed in, to compress the air 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 above-mentioned chamber and open, at their other end, in the diffuser towards the above-mentioned 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 to the nozzle and communicating, on the other side, with a housing connected to the aforesaid longitudinal pipe, the aforementioned closure means being disposed in this housing.

Le siège du clapet des moyens d'obturation est, de préférence, situé dans le susdit logement.The seat of the shutter means valve is preferably located in the above-mentioned housing.

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, in a flexible material, comprising at its lower part a flange coming to cover the edge of the opening of the container and connected at its other end in a sealed manner to the button -pusher.

L'invention consiste, mises à part les dispositions exposées ci-dessus, 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, of 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.Finally, FIG. 3 shows, similarly to FIG. 1, the device at the end of a use, the push button being completely 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 allow 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 end up causing a clogging of the spraying device so that it would be necessary to carry out 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 troublesome 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 clings to 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 while 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 as a result of 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 is filled with air, coming from the outside, through the return valve d 'air, not visible in the drawing.

Claims (7)

  1. Device for spraying a liquid capable of hardening as it dries, in particular a lacquer, contained in a container (2) provided with an opening (3) equipped with a pump (5) which can be actuated using a push button (9) located on top of the pump body (6) and can cause the pumped liquid to pass through a diffuser (10) comprising a spray nozzle (13) provided in the push button, which device includes means (E) for expelling the liquid contained inside the diffuser (10), which means are at least partly integrated in this push button, and comprises means (C) for compressing air and means (F) for removing compressed air through the diffuser (10) which means are actuated by depressing the push button, the said compressed-air removal means (F) comprising passage means (19, 20) provided in the push button and means (23) for closing these passage means, the closure means (23) comprising a valve (23) subjected to the action of elastic means (25); characterized in that the force developed by the elastic means of the valve (23) is sufficient to keep this valve (23) closed in spite of the air pressure developed by the air compression means (C) when the push button is depressed; and in that control means (26) are provided for opening the valve (23), these control means (26) comprising an end-stop (27) which can come to bear against the valve (23) in order to move it away from its seat when the push button (9) is depressed to the full extent of its travel.
  2. Device according to Claim 1, characterized in that the air compression means (C) comprise a deformable covering (14) fixed on the edge (4) of the opening (3) of the container and connected to the push button (9) so as to define a closed chamber (18), the push button (9) acting in the manner of a piston when it is depressed in order to compress the air contained in this chamber (18).
  3. Device according to Claim 2, characterized in that the passage means (19, 20) provided in the push button communicate, at one end, with the abovementioned chamber (18) and emerge, at their other end, in the diffuser (10) towards the abovementioned nozzle (13).
  4. 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 depression of the push button, and a transverse duct (20) connected, on one side, to a channel (12) of the diffuser (10) for outlet of liquid towards the nozzle (13) and communicating, on the other side, with a housing (21) connected to the abovementioned longitudinal pipe (19), the abovementioned closure means (23) being arranged in this housing.
  5. Device according to Claim 4, characterized in that the valve (23) has a seat located in the above-mentioned housing (21).
  6. Device according to Claim 5, characterized in that the end-stop (27) consists of a rod which is substantially parallel to the axis of the container but is offset radially relative to this axis and can be engaged in the said longitudinal pipe (19) which emerges in the housing (21) equipped with the valve.
  7. Device according to any one of Claims 2 to 6, characterized in that the deformable cover defining the closed chamber (18) consists of a concertinaed bellows (15) made of a flexible material, comprising at its lower part a collar (16) which covers the edge of the opening (3) of the container and is connected at its other end (17) in a leaktight manner to the push button (9).
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 EP0519779A1 (en) 1992-12-23
EP0519779B1 true EP0519779B1 (en) 1995-04-26

Family

ID=9413907

Family Applications (1)

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)

Families Citing this family (4)

* 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
JP2006509694A (en) * 2002-12-13 2006-03-23 インクロ リミテッド Improvements in or related to pump-acting nozzle devices
GB0520608D0 (en) * 2005-10-11 2005-11-16 Incro Ltd Pump dispenser
FR3079428B1 (en) * 2018-04-03 2020-08-14 Aptar France Sas FLUID PRODUCT DISTRIBUTION HEAD.

Family Cites Families (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
DE3722469A1 (en) * 1987-07-08 1989-01-19 Pfeiffer Erich Gmbh & Co Kg HAND-OPERATED DISCHARGE DEVICE FOR MEDIA
DE4011537A1 (en) * 1990-04-10 1991-10-17 Pfeiffer Erich Gmbh & Co Kg DISCHARGE DEVICE FOR AT LEAST ONE MEDIUM

Also Published As

Publication number Publication date
FR2677617A1 (en) 1992-12-18
DE69202201T2 (en) 1996-01-18
DE69202201D1 (en) 1995-06-01
FR2677617B1 (en) 1995-01-06
EP0519779A1 (en) 1992-12-23
ES2071452T3 (en) 1995-06-16

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