EP0465275A1 - Push-button device for a spray container and spray container having such a push-button device - Google Patents

Push-button device for a spray container and spray container having such a push-button device Download PDF

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Publication number
EP0465275A1
EP0465275A1 EP91400749A EP91400749A EP0465275A1 EP 0465275 A1 EP0465275 A1 EP 0465275A1 EP 91400749 A EP91400749 A EP 91400749A EP 91400749 A EP91400749 A EP 91400749A EP 0465275 A1 EP0465275 A1 EP 0465275A1
Authority
EP
European Patent Office
Prior art keywords
push button
cap
valve
pipe
push
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
EP91400749A
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German (de)
French (fr)
Other versions
EP0465275B1 (en
Inventor
Vincent De Laforcade
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Priority to AT9191400749T priority Critical patent/ATE105257T1/en
Publication of EP0465275A1 publication Critical patent/EP0465275A1/en
Application granted granted Critical
Publication of EP0465275B1 publication Critical patent/EP0465275B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/16Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
    • B65D83/20Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • B65D83/205Actuator caps, or peripheral actuator skirts, attachable to the aerosol container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/005Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow
    • B05B7/0056Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow with disturbing means promoting mixing, e.g. balls, crowns

Definitions

  • the invention relates to a push button for aerosol can containing a foam, in particular a styling foam, this can being provided with an outlet valve suitable for being actuated by the push button, which comprises a pipe opening out towards the outside for the outlet of the product and intended to be connected to the valve, a deflector being provided across the extension of the outlet pipe in order to initiate the expansion of the foam before it leaves the button- pusher.
  • the object of the invention is therefore to provide a push button, of the type defined above which, while meeting the usual requirements for economical manufacture and rapid assembly, makes it possible to obtain, at the outlet, a better quality foam, especially from the start of the release of this foam.
  • a push button for aerosol can is characterized in that the deflector has the shape of a cap whose concave part is turned towards the outlet of the pipe so as to cover it , the extreme part of the pipe being surrounded by a wall defining a chamber whose bottom is set back from the opening of the pipe and whose open end is located beyond the cap.
  • the flow leaving the product must therefore make two changes of direction, substantially at 180 ° each.
  • the cap is hemispherical.
  • the chamber surrounding the end part of the pipe can have a rectangular parallelepiped shape.
  • the cap is advantageously part of a tip having an outer surface which matches the inner surface of the chamber, the large faces of the tip being substantially tangent to the outer surface of the cap, while the small faces of the tip are spread on either side of the cap.
  • the chamber is arranged so that its large faces are orthogonal to the axis of the aerosol can when the push button is mounted on this can.
  • the outlet pipe is oriented at right angles to the axis of the push button, a tube coaxial with this axis, and communicating with the outlet pipe, being able to act by its lower part on the valve.
  • the aerosol can containing foam equipped with such a push button, is generally of the dip tube type so as to be used head up.
  • the outlet valve is generally a female valve, the coaxial tube of the push button entering the valve to actuate it.
  • the push-button is hung on a hoop, itself fixed on the flange of the valve.
  • the hooking of the push button on the hoop is ensured by at least two snap-on elastic tabs, provided in a cylindrical skirt engaged so as to be able to slide, while being guided, in a flange of sufficient axial length provided on the hoop ; the latter forms a sort of dome which is intended to cover the rim of the valve, and internally comprises a cylindrical part of diameter greater than the guide flange of the push-button suitable for being snapped onto the flange of the valve, thanks to an internal annular projection.
  • 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 attached drawing, but which is by no means limiting.
  • Figure 1 of this drawing is a vertical sectional view, passing through the axis of the outlet pipe, of a push button according to the invention.
  • Figure 2 is a partial section along the line II-II of Figure 1, on a larger scale.
  • a push button 1 for an aerosol can B partially shown, containing a foam, in particular a styling foam.
  • the canister B is provided with an outlet valve 2.
  • the canister B is of the type with dip tube p so as to be used head up.
  • the outlet valve 2 is a female valve, in which is suitable for engaging a tube 3 coaxial with the push button 1 to actuate the valve and establish a connection in order to direct the product towards a pipe 4, opening outwards for the release of this product.
  • This pipe 4 is orthogonal to the tube 3 with which it communicates in the upper part. When the canister B has its vertical axis, the pipe 4 is horizontal.
  • the upper wall of the button 1 has a slightly concave surface 5 surmounting the tube 3, to allow the user to exert vertical pressure on the button 1 to actuate the valve 2.
  • a deflector 6 is provided across the extension of the outlet pipe 4 in order to initiate the expansion of the foam before it leaves the push button 1.
  • This deflector 6 has the shape of a cap 7, in particular spherical, the concave part of which is facing the outlet of line 4 so as to cover it.
  • the inner surface of the cap 7 is however spaced from the end of the pipe 4, as clearly visible in FIG. 2, to leave an annular passage 8 for the product.
  • the end portion of the pipe 4 is surrounded by a wall 9 forming part of the button 1 and defining a chamber 10 whose bottom 11 is recessed from the opening 4a of the pipe 4 and the open end 12 is located beyond the cap 7.
  • the cap 7 is hemispherical, and centered on the axis of the pipe 4; the base equatorial plane of the cap 7 is orthogonal to this axis.
  • the chamber 10 has a rectangular parallelepiped shape as visible in FIG. 3.
  • the cap 7 is part of a tip 13, preferably molded in plastic, having a rectangular parallelepiped exterior surface which comes to marry the interior surface of the chamber 10.
  • This tip 13 is open on its two faces orthogonal to the axis of the pipe 4.
  • the large lateral faces 14, 15 of the nozzle 13 are orthogonal to the axis of the tube 3 and therefore to the axis of the container when the button 1 is mounted on this container B.
  • the large faces 14, 15 are substantially tangent to the outer surface of the cap 7, as visible in FIGS. 1 and 3, while the small faces 16, 17 of the end piece are spaced apart on either side of the cap 7 so as to leave passages 18 allowing the product to exit.
  • Two radial walls 19, diametrically opposite, forming an integral part of the end piece 13, provide a connection between the cap 7 and the middle area of the small faces 16, 17 of the end piece.
  • These walls 19 are relatively narrow and radially inner portion 19 a is located at a distance from the axis equal to the outer radius of the pipe 4 so that the slices 19 has walls 19 are fit over the outer surface as shown in figure 2.
  • the end piece 13 can be held in the chamber 10 by a force fitting, or possibly can be glued or welded, or fixed by any other appropriate means.
  • the push button 1 is attached to a hoop 22 which is itself fixed on the flange 23 of the valve, formed by a circular collar.
  • a protective cover C of cylindrical shape, covers the push-button 1, the base of the cover C coming to bear against a shoulder 22 a of the hoop 22.
  • the push button 1 includes, externally, a sort of dome 24, inside which is provided a cylindrical sleeve 25, coaxial with the tube 3 but of larger diameter, surrounding this tube from the upper part of the button 1 to the bottom. Walls 26, oriented radially, provide a star connection between the lower end of the tube 3 and the sleeve 25.
  • a skirt 27 extends downward the dome 24, from a recess 28.
  • This cylindrical skirt 27, of diameter greater than the sleeve 25, is engaged, so as to be able to slide while being guided, in a flange 29 of sufficient axial length, provided on the hoop 22.
  • At least two elastic tabs 30, diametrically opposite, are delimited in the cylindrical wall of the skirt 27 by two rectilinear slots, along generatrices. These lugs 30 have a radial elasticity and are provided, externally, with a projection 31 suitable for hanging under the lower edge of the flange 29.
  • the hoop 22 forms a sort of dome intended to cover the rim 23, and includes, internally, a cylindrical part 32 of diameter greater than the collar 29, suitable for being snapped onto the collar 23, thanks to an internal annular projection 33.
  • the user By pressing on the surface 5, the user causes the button to be pushed into the hoop 22 as well as the valve 2 to be pushed in by the tube 3.
  • the valve 2 opens and the product comes out through the tube 3 and the line 4 as illustrated by the arrows in Figure 2.
  • the combination of the cap 7 and the chamber 9 imposes a double change of direction on the product flow, substantially at 180 ° each time. This results in an improvement in the quality of the foam, particularly at the start of dispensing.
  • the aerosol can When the aerosol can is left to stand for a certain time, for example between two morning uses, the liquid part of the product is naturally found at the bottom of can B and the gas in suspension rises to the surface. There is then a separation of the contents of the container into two phases: liquid and gaseous.
  • the projections, in particular of gas, at the opening of the valve 2 are returned towards the bottom 11 of the chamber 9 where they rebound on a flat wall before being able to go to the outlet passages 18 of the push button.
  • the projections, notably of gas are embedded in the flow of foam which continues to exit in the opposite direction and which absorbs them.
  • the push button 1 which is driven in an axial movement from top to bottom (and vice versa), is well guided by the collar 29, which is advantageous for the reasons explained below.
  • the push button 1 is free to move in the axial direction, without being able to come out of its housing, and while being prevented from moving in the lateral direction by the guide flange 29.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)

Abstract

The push-button (1) is intended for an aerosol can (B) containing a mousse, in particular a hair styling mousse, this can (B) being provided with a delivery valve (2) capable of being actuated by the push-button (1). This push-button comprises a duct (4) leading towards the exterior for the delivery of the product and adapted to be connected to the valve (2), a deflector (6) being provided across the extension of the delivery duct (4) in order to start the expansion of the mousse before it emerges from the push-button (1). The deflector (6) is in the form of a cap (7), the concave part of which is directed towards the outlet of the duct (4), the end part of the duct being surrounded by a wall (9) defining a chamber (10), the base (11) of which is recessed relative to the opening of the duct (4) and the open end (12) of which is situated above the cap (7).

Description

L'invention est relative à un bouton-poussoir pour bidon aérosol contenant une mousse, en particulier une mousse de coiffage, ce bidon étant muni d'une valve de sortie propre à être actionnée par le bouton-poussoir, lequel comporte une canalisation débouchant vers l'extérieur pour la sortie du produit et destinée à être raccordée à la valve, un déflecteur étant prévu en travers du prolongement de la canalisation de sortie en vue d'amorcer l'expansion de la mousse avant qu'elle ne sorte du bouton-poussoir.The invention relates to a push button for aerosol can containing a foam, in particular a styling foam, this can being provided with an outlet valve suitable for being actuated by the push button, which comprises a pipe opening out towards the outside for the outlet of the product and intended to be connected to the valve, a deflector being provided across the extension of the outlet pipe in order to initiate the expansion of the foam before it leaves the button- pusher.

Il est apparu que le niveau de qualité du produit sortant, c'est-à-dire de la mousse demandait à être améliorée , en particulier dans le cas de bidons aérosols avec tube plongeur, destinés à être utilisés tête en haut.It appeared that the quality level of the outgoing product, that is to say of the foam, needed to be improved, in particular in the case of aerosol cans with dip tube, intended to be used head up.

L'invention a donc pour but de fournir un bouton-poussoir, du genre défini précédemment qui, tout en répondant aux exigences habituelles de fabrication économique, et de montage rapide, permette d'obtenir, à la sortie, une mousse de meilleure qualité, en particulier dès le début de la sortie de cette mousse.The object of the invention is therefore to provide a push button, of the type defined above which, while meeting the usual requirements for economical manufacture and rapid assembly, makes it possible to obtain, at the outlet, a better quality foam, especially from the start of the release of this foam.

Selon l'invention, un bouton-poussoir pour bidon aérosol, du genre défini précédemment, est caractérisé par le fait que le déflecteur a la forme d'une calotte dont la partie concave est tournée vers la sortie de la canalisation de manière à la coiffer, la partie extrême de la canalisation étant entourée par une paroi définissant une chambre dont le fond est en retrait de l'ouverture de la canalisation et dont l'extrémité ouverte est située au-delà de la calotte. Le flux sortant du produit doit ainsi effectuer deux changements de direction, sensiblement à 180° chacun.According to the invention, a push button for aerosol can, of the kind defined above, is characterized in that the deflector has the shape of a cap whose concave part is turned towards the outlet of the pipe so as to cover it , the extreme part of the pipe being surrounded by a wall defining a chamber whose bottom is set back from the opening of the pipe and whose open end is located beyond the cap. The flow leaving the product must therefore make two changes of direction, substantially at 180 ° each.

De préférence, la calotte est hémisphérique.Preferably, the cap is hemispherical.

La chambre entourant la partie extrême de la canalisation peut avoir une forme parallélépipédique rectangle. La calotte fait avantageusement partie d'un embout ayant une surface extérieure qui vient épouser la surface intérieure de la chambre, les grandes faces de l'embout étant sensiblement tangentes à la surface extérieure de la calotte, tandis que les petites faces de l'embout sont écartées de part et d'autre de la calotte.The chamber surrounding the end part of the pipe can have a rectangular parallelepiped shape. The cap is advantageously part of a tip having an outer surface which matches the inner surface of the chamber, the large faces of the tip being substantially tangent to the outer surface of the cap, while the small faces of the tip are spread on either side of the cap.

De préférence, la chambre est disposée de telle sorte que ses grandes faces soient orthogonales à l'axe du bidon aérosol lorsque le bouton-poussoir est monté sur ce bidon.Preferably, the chamber is arranged so that its large faces are orthogonal to the axis of the aerosol can when the push button is mounted on this can.

Généralement, la canalisation de sortie est orientée à angle droit par rapport à l'axe du boutonpoussoir, un tube coaxial à cet axe, et communiquant avec la canalisation de sortie, étant propre à agir par sa partie inférieure sur la valve.Generally, the outlet pipe is oriented at right angles to the axis of the push button, a tube coaxial with this axis, and communicating with the outlet pipe, being able to act by its lower part on the valve.

Le bidon-aérosol contenant une mousse, équipé d'un tel bouton-poussoir, est généralement du type à tube plongeur de manière à être utilisé tête en haut. La valve de sortie est généralement une valve femelle, le tube coaxial du bouton-poussoir pénétrant dans la valve pour l'actionner.The aerosol can containing foam, equipped with such a push button, is generally of the dip tube type so as to be used head up. The outlet valve is generally a female valve, the coaxial tube of the push button entering the valve to actuate it.

De préférence, le bouton-poussoir est accroché à une frette, elle-même fixée sur le rebord de la valve.Preferably, the push-button is hung on a hoop, itself fixed on the flange of the valve.

L'accrochage du bouton-poussoir sur la frette est assuré par au moins deux pattes élastiques, à encliqueter, prévues dans une jupe cylindrique engagée de manière à pouvoir coulisser, tout en étant guidée, dans une collerette de longueur axiale suffisante prévue sur la frette ; cette dernière forme une sorte de dôme qui est destiné à recouvrir le rebord de la valve, et comprend, intérieurement une partie cylindrique de diamètre supérieur à la collerette de guidage du bouton-poussoir propre à être encliquetée sur le rebord de la valve, grâce à une saillie annulaire interne.The hooking of the push button on the hoop is ensured by at least two snap-on elastic tabs, provided in a cylindrical skirt engaged so as to be able to slide, while being guided, in a flange of sufficient axial length provided on the hoop ; the latter forms a sort of dome which is intended to cover the rim of the valve, and internally comprises a cylindrical part of diameter greater than the guide flange of the push-button suitable for being snapped onto the flange of the valve, thanks to an internal annular projection.

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 au dessin ci-annexé, 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 attached drawing, but which is by no means limiting.

La figure 1, de ce dessin, est une vue en coupe verticale, passant par l'axe de la canalisation de sortie, d'un bouton-poussoir selon l'invention.Figure 1 of this drawing is a vertical sectional view, passing through the axis of the outlet pipe, of a push button according to the invention.

La figure 2 est une coupe partielle suivant la ligne II-II de la figure 1, à plus grande échelle.Figure 2 is a partial section along the line II-II of Figure 1, on a larger scale.

La figure 3, enfin, est une vue de droite par rapport à la figure 2.FIG. 3, finally, is a view from the right with respect to FIG. 2.

En se reportant au dessin, notamment à la figure 1, on peut voir un bouton-poussoir 1 pour un bidon aérosol B, partiellement représenté, contenant une mousse, en particulier une mousse de coiffage. Le bidon B est muni d'une valve de sortie 2. Le bidon B est du type à tube plongeur p de manière à être utilisé tête en haut. La valve de sortie 2 est une valve femelle, dans laquelle est propre à s'engager un tube 3 coaxial au bouton-poussoir 1 pour actionner la valve et établir une connexion afin de diriger le produit vers une canalisation 4, débouchant vers l'extérieur pour la sortie de ce produit. Cette canalisation 4 est orthogonale au tube 3 avec lequel elle communique en partie haute. Lorsque le bidon B a son axe vertical, la canalisation 4 est horizontale.Referring to the drawing, in particular to FIG. 1, one can see a push button 1 for an aerosol can B, partially shown, containing a foam, in particular a styling foam. The canister B is provided with an outlet valve 2. The canister B is of the type with dip tube p so as to be used head up. The outlet valve 2 is a female valve, in which is suitable for engaging a tube 3 coaxial with the push button 1 to actuate the valve and establish a connection in order to direct the product towards a pipe 4, opening outwards for the release of this product. This pipe 4 is orthogonal to the tube 3 with which it communicates in the upper part. When the canister B has its vertical axis, the pipe 4 is horizontal.

La paroi supérieure du bouton 1 comporte une surface 5, légèrement concave, surmontant le tube 3, pour permettre à l'utilisateur d'exercer une pression verticale sur le bouton 1 pour actionner la valve 2.The upper wall of the button 1 has a slightly concave surface 5 surmounting the tube 3, to allow the user to exert vertical pressure on the button 1 to actuate the valve 2.

Un déflecteur 6 est prévu en travers du prolongement de la canalisation de sortie 4 en vue d'amorcer l'expansion de la mousse avant qu'elle ne sorte du bouton-poussoir 1. Ce déflecteur 6 a la forme d'une calotte 7, notamment sphérique, dont la partie concave est tournée vers la sortie de la canalisation 4 de manière à la coiffer. La surface intérieure de la calotte 7 est toutefois écartée de l'extrémité de la canalisation 4, comme bien visible sur la figure 2, pour laisser un passage annulaire 8 pour le produit.A deflector 6 is provided across the extension of the outlet pipe 4 in order to initiate the expansion of the foam before it leaves the push button 1. This deflector 6 has the shape of a cap 7, in particular spherical, the concave part of which is facing the outlet of line 4 so as to cover it. The inner surface of the cap 7 is however spaced from the end of the pipe 4, as clearly visible in FIG. 2, to leave an annular passage 8 for the product.

La partie extrême de la canalisation 4 est entourée par une paroi 9 formant partie intégrante du bouton 1 et définissant une chambre 10 dont le fond 11 est en retrait de l'ouverture 4a de la canalisation 4 et dont l'extrémité ouverte 12 est située au-delà de la calotte 7.The end portion of the pipe 4 is surrounded by a wall 9 forming part of the button 1 and defining a chamber 10 whose bottom 11 is recessed from the opening 4a of the pipe 4 and the open end 12 is located beyond the cap 7.

De préférence, la calotte 7 est hémisphérique, et centrée sur l'axe de la canalisation 4 ; le plan équatorial de base de la calotte 7 est orthogonal à cet axe. La chambre 10 a une forme parallélépipédique rectangle comme visible sur la figure 3.Preferably, the cap 7 is hemispherical, and centered on the axis of the pipe 4; the base equatorial plane of the cap 7 is orthogonal to this axis. The chamber 10 has a rectangular parallelepiped shape as visible in FIG. 3.

La calotte 7 fait partie d'un embout 13, de préférence moulé en matière plastique, ayant une surface extérieure parallélépipédique rectangle qui vient épouser la surface intérieure de la chambre 10. Cet embout 13 est ouvert sur ses deux faces orthogonales à l'axe de la canalisation 4. Les grandes faces latérales 14, 15 de l'embout 13 sont orthogonales à l'axe du tube 3 et donc à l'axe du bidon lorsque le bouton 1 est monté sur ce bidon B. Les grandes faces 14, 15 sont sensiblement tangentes à la surface extérieure de la calotte 7, comme visible sur les figures 1 et 3, tandis que les petites faces 16, 17 de l'embout sont écartées de part et d'autre de la calotte 7 de manière à laisser des passages 18 permettant la sortie du produit.The cap 7 is part of a tip 13, preferably molded in plastic, having a rectangular parallelepiped exterior surface which comes to marry the interior surface of the chamber 10. This tip 13 is open on its two faces orthogonal to the axis of the pipe 4. The large lateral faces 14, 15 of the nozzle 13 are orthogonal to the axis of the tube 3 and therefore to the axis of the container when the button 1 is mounted on this container B. The large faces 14, 15 are substantially tangent to the outer surface of the cap 7, as visible in FIGS. 1 and 3, while the small faces 16, 17 of the end piece are spaced apart on either side of the cap 7 so as to leave passages 18 allowing the product to exit.

Deux parois radiales 19, diamétralement opposées, formant partie intégrante de l'embout 13, assurent une liaison entre la calotte 7 et la zone médiane des petites faces 16, 17 de l'embout. Ces parois 19 sont relativement étroites et leur tranche radiale intérieure 19a est située à une distance de l'axe égale au rayon extérieur de la canalisation 4 de sorte que les tranches 19a des parois 19 viennent s'ajuster sur cette surface extérieure comme visible sur la figure 2.Two radial walls 19, diametrically opposite, forming an integral part of the end piece 13, provide a connection between the cap 7 and the middle area of the small faces 16, 17 of the end piece. These walls 19 are relatively narrow and radially inner portion 19 a is located at a distance from the axis equal to the outer radius of the pipe 4 so that the slices 19 has walls 19 are fit over the outer surface as shown in figure 2.

La chambre 10 comporte, partant du fond 11, des épaulements 20 contre lesquels sont propres à venir s'appuyer, axialement, les parois 19. Deux parois diamétralement opposées 21, de dimensions radiales plus faibles, assurent une liaison entre la calotte 7 et la zone médiane des grandes faces 14, 15.The chamber 10 comprises, starting from the bottom 11, shoulders 20 against which are adapted to come to bear, axially, the walls 19. Two diametrically opposite walls 21, of smaller radial dimensions, provide a connection between the cap 7 and the median zone of the large faces 14, 15.

L'embout 13 peut être maintenu dans la chambre 10 par un emmanchement à force, ou éventuellement peut être collé ou soudé, ou fixé par tout autre moyen approprié.The end piece 13 can be held in the chamber 10 by a force fitting, or possibly can be glued or welded, or fixed by any other appropriate means.

Le bouton-poussoir 1 est accroché à une frette 22 elle-même fixée sur le rebord 23 de la valve, formé par une collerette circulaire.The push button 1 is attached to a hoop 22 which is itself fixed on the flange 23 of the valve, formed by a circular collar.

Au repos, un capot protecteur C, de forme cylindrique, recouvre le bouton-poussoir 1, la base du capot C venant en appui contre un épaulement 22a de la frette 22.At rest, a protective cover C, of cylindrical shape, covers the push-button 1, the base of the cover C coming to bear against a shoulder 22 a of the hoop 22.

Le bouton-poussoir 1 comprend, extérieurement, une sorte de coupole 24, à l'intérieur de laquelle est prévu un manchon cylindrique 25, coaxial au tube 3 mais de diamètre plus important, entourant ce tube depuis la partie supérieur du bouton 1 jusque vers le bas. Des parois 26, orientées radialement, assurent une liaison en étoile entre l'extrémité inférieure du tube 3 et le manchon 25.The push button 1 includes, externally, a sort of dome 24, inside which is provided a cylindrical sleeve 25, coaxial with the tube 3 but of larger diameter, surrounding this tube from the upper part of the button 1 to the bottom. Walls 26, oriented radially, provide a star connection between the lower end of the tube 3 and the sleeve 25.

Une jupe 27 prolonge vers le bas le dôme 24, à partir d'un décrochement 28. Cette jupe cylindrique 27, de diamètre supérieur au manchon 25, est engagée, de manière à pouvoir coulisser tout en étant guidée, dans une collerette 29 de longueur axiale suffisante, prévue sur la frette 22. Au moins deux pattes élastiques 30, diamétralement opposées, sont délimitées dans la paroi cylindrique de la jupe 27 par deux fentes rectilignes, suivant des génératrices. Ces pattes 30 présentent une élasticité radiale et sont munies, extérieurement, d'une saillie 31 propre à s'accrocher sous le rebord inférieur de la collerette 29.A skirt 27 extends downward the dome 24, from a recess 28. This cylindrical skirt 27, of diameter greater than the sleeve 25, is engaged, so as to be able to slide while being guided, in a flange 29 of sufficient axial length, provided on the hoop 22. At least two elastic tabs 30, diametrically opposite, are delimited in the cylindrical wall of the skirt 27 by two rectilinear slots, along generatrices. These lugs 30 have a radial elasticity and are provided, externally, with a projection 31 suitable for hanging under the lower edge of the flange 29.

La frette 22 forme une sorte de dôme destiné à recouvrir le rebord 23, et comprend, intérieurement, une partie cylindrique 32 de diamètre supérieur à la collerette 29, propre à être encliquetée sur la collerette 23, grâce à une saillie annulaire interne 33.The hoop 22 forms a sort of dome intended to cover the rim 23, and includes, internally, a cylindrical part 32 of diameter greater than the collar 29, suitable for being snapped onto the collar 23, thanks to an internal annular projection 33.

L'utilisation et le fonctionnement du bouton-poussoir sont les suivants.The use and operation of the push button are as follows.

En appuyant sur la surface 5, l'utilisateur provoque l'enfoncement du bouton dans la frette 22 ainsi que l'enfoncement de la valve 2 par le tube 3. La valve 2 s'ouvre et le produit sort par le tube 3 et la canalisation 4 comme illustré par les flèches sur la figure 2.By pressing on the surface 5, the user causes the button to be pushed into the hoop 22 as well as the valve 2 to be pushed in by the tube 3. The valve 2 opens and the product comes out through the tube 3 and the line 4 as illustrated by the arrows in Figure 2.

La combinaison de la calotte 7 et de la chambre 9 impose au flux de produit un double changement de direction, sensiblement à 180° à chaque fois. Il en résulte une amélioration de la qualité de la mousse, en particulier au début de la distribution.The combination of the cap 7 and the chamber 9 imposes a double change of direction on the product flow, substantially at 180 ° each time. This results in an improvement in the quality of the foam, particularly at the start of dispensing.

Bien que ce résultat soit surprenant, on peut essayer de l'interpréter de la manière suivante.Although this result is surprising, we can try to interpret it as follows.

Lorsque le bidon aérosol est laissé au repos un certain temps, par exemple entre deux usages matinaux, la partie liquide du produit se retrouve naturellement en bas du bidon B et le gaz en suspension remonte vers la surface. Il y a alors une séparation du contenu du bidon en deux phases : liquide et gazeuse.When the aerosol can is left to stand for a certain time, for example between two morning uses, the liquid part of the product is naturally found at the bottom of can B and the gas in suspension rises to the surface. There is then a separation of the contents of the container into two phases: liquid and gaseous.

Cette séparation en deux phases se produit également dans le tube plongeur p ; comme la section de ce tube p est petite, l'agitation du bidon B, effectuée généralement avant usage, n'est pas suffisante pour émulsionner complètement les deux phases qui y sont contenues : l'ouverture de la valve 2 va donc donner lieu d'abord à la sortie d'un peu de gaz, puis à celle d'un mélange trop riche en gaz, puis à celle de la mousse dans un état de qualité identique à celui recherché.This separation into two phases also occurs in the dip tube p ; as the section of this tube p is small, the agitation of the canister B, generally carried out before use, is not sufficient to completely emulsify the two phases contained therein: the opening of the valve 2 will therefore give rise to d 'first at the outlet of a little gas, then at that of a mixture too rich in gas, then at that of the foam in a state of quality identical to that sought.

Grâce à l'obstacle semi-sphérique créé par la calotte 7, les projections, notamment de gaz, à l'ouverture de la valve 2, sont renvoyées vers le fond 11 de la chambre 9 où elles rebondissent sur une paroi plane avant de pouvoir se diriger vers les passages de sortie 18 du bouton-poussoir. Sur ce chemin, les projections, notamment de gaz, sont noyées dans le flux de mousse qui continue à sortir en sens inverse et qui les absorbe.Thanks to the semi-spherical obstacle created by the cap 7, the projections, in particular of gas, at the opening of the valve 2, are returned towards the bottom 11 of the chamber 9 where they rebound on a flat wall before being able to go to the outlet passages 18 of the push button. On this path, the projections, notably of gas, are embedded in the flow of foam which continues to exit in the opposite direction and which absorbs them.

Le bouton-poussoir 1, qui est animé d'un mouvement axial de haut en bas, (et inversement), est bien guidé par la collerette 29, ce qui est avantageux pour les raisons exposées ci-après.The push button 1, which is driven in an axial movement from top to bottom (and vice versa), is well guided by the collar 29, which is advantageous for the reasons explained below.

Il s'est avéré que les utilisateurs de bidons aérosols adoptent en général, pour enlever le capot protecteur C recouvrant le bouton-poussoir 1 au repos, un geste qui consiste à basculer latéralement le capot C par rapport au grand axe du bidon. Il faut donc que le bouton-poussoir 1 ne soit pas trop haut et que sa partie la plus proche du capot C au repos en soit suffisamment éloignée pour que le capot C, en sautant, n'emmène pas le bouton-poussoir avec lui.It has been found that users of aerosol cans generally adopt, for removing the protective cover C covering the push button 1 at rest, a gesture which consists in tilting the cover C laterally with respect to the major axis of the can. It is therefore necessary that the push button 1 is not too high and that its part closest to the cover C at rest is sufficiently far from it so that the cover C, when jumping, does not take the push button with it.

Grâce à l'accrochage conforme à l'invention du bouton-poussoir 1 sur la frette 22, le bouton- poussoir 1 est libre de se mouvoir dans le sens axial, sans pouvoir sortir de son logement, et en étant empêché de se mouvoir dans le sens latéral par la collerette de guidage 29.Thanks to the attachment according to the invention of the push button 1 on the hoop 22, the push button 1 is free to move in the axial direction, without being able to come out of its housing, and while being prevented from moving in the lateral direction by the guide flange 29.

Ainsi, même si le capuchon C, lors de son basculement, vient appuyer contre le bouton-poussoir 1, celui-ci étant fermement maintenu ne peut être emmené. Il est donc possible de diminuer sensiblement la distance minimale entre le bouton-poussoir 1 et la face interne du capot C au repos, sans diminuer les qualités d'usage du bouton-poussoir 1. Ceci augmente sensiblement le choix des formes pour l'équipement aérosol.Thus, even if the cap C, during its tilting, comes to press against the push-button 1, the latter being firmly held cannot be carried. It is therefore possible to significantly reduce the minimum distance between the push button 1 and the internal face of the cover C at rest, without reducing the qualities of use of the push button 1. This significantly increases the choice of shapes for the equipment. aerosol.

Claims (10)

Bouton-poussoir pour bidon aérosol contenant une mousse, en particulier une mousse de coiffage, ce bidon étant muni d'une valve de sortie propre à être actionnée par le bouton-poussoir, lequel comporte une canalisation débouchant vers l'extérieur pour la sortie du produit et destinée à être raccordée à la valve, un déflecteur étant prévu en travers du prolongement de la canalisation de sortie en vue d'amorcer l'expansion de la mousse avant qu'elle ne sorte du bouton-poussoir, caractérisé par le fait que le déflecteur (6) a la forme d'une calotte (7) dont la partie concave est tournée vers la sortie de la canalisation (4) de manière à la coiffer, la partie extrême de la canalisation étant entourée par une paroi (9) définissant une chambre (10) dont le fond (11) est en retrait de l'ouverture de la canalisation et dont l'extrémité ouverte (12) est située au-delà de la calotte (7).Push button for aerosol can containing a foam, in particular a styling foam, this can being provided with an outlet valve suitable for being actuated by the push button, which comprises a pipe opening outwards for the outlet of the product and intended to be connected to the valve, a deflector being provided across the extension of the outlet pipe in order to initiate the expansion of the foam before it leaves the push button, characterized in that the deflector (6) has the shape of a cap (7) whose concave part is turned towards the outlet of the pipe (4) so as to cover it, the end part of the pipe being surrounded by a wall (9) defining a chamber (10) whose bottom (11) is set back from the opening of the pipe and whose open end (12) is located beyond the cap (7). Bouton-poussoir selon la revendication 1, caractérisé par le fait que la calotte (7) est hémisphérique.Push button according to claim 1, characterized in that the cap (7) is hemispherical. Bouton-poussoir selon la revendication 1 ou 2, caractérisé par le fait que la chambre (10) entourant la partie extrême de la canalisation (4) a une forme parallélépipédique rectangle.Push button according to claim 1 or 2, characterized in that the chamber (10) surrounding the end part of the pipe (4) has a rectangular parallelepiped shape. Bouton-poussoir selon la revendication 3, caractérisé par le fait que la calotte (7) fait partie d'un embout (13) ayant' une surface extérieure qui vient épouser la surface intérieure de la chambre (10), les grandes faces (14, 15) de l'embout étant sensiblement tangentes à la surface extérieure de la calotte, tandis que les petites faces (16, 17) de l'embout sont écartées de part et d'autre de la calotte (7).Push button according to claim 3, characterized in that the cap (7) is part of a nozzle (13) having 'an outer surface which matches the inner surface of the chamber (10), the large faces (14 , 15) of the tip being substantially tangent to the outer surface of the cap, while the small faces (16, 17) of the tip are spaced apart on either side of the cap (7). Bouton-poussoir selon la revendication 4, caractérisé par le fait que la chambre (10) est disposée de telle sorte que les grandes faces (14, 15) de l'embout (13) soient orthogonales à l'axe du bidon aérosol (B) lorsque le bouton-poussoir (1) est monté sur ce bidonPush button according to claim 4, characterized in that the chamber (10) is arranged so that the large faces (14, 15) of the nozzle (13) are orthogonal to the axis of the aerosol can (B) when the push button (1 ) is mounted on this container Bouton-poussoir selon l'une quelconque des revendications précédentes, caractérisé par le fait que la canalisation de sortie (4) est orientée à angle droit par rapport à l'axe du bouton-poussoir (1) et qu'un tube coaxial à cet axe, communiquant avec la canalisation de sortie (4), est propre à agir par sa partie inférieure sur la valve (2).Push button according to any one of the preceding claims, characterized in that the outlet pipe (4) is oriented at right angles to the axis of the push button (1) and that a tube coaxial with this axis, communicating with the outlet pipe (4), is capable of acting through its lower part on the valve (2). Bouton-poussoir selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il est accroché à une frette (22) elle-même fixée sur le rebord (23) de la valve (2).Push button according to any one of the preceding claims, characterized in that it is attached to a hoop (22) itself fixed on the flange (23) of the valve (2). Bouton-poussoir selon la revendication 7, caractérisé par le fait que l'accrochage sur la frette (22) est assuré par au moins deux pattes (30) élastiques, à encliqueter, prévues dans une jupe (27) cylindrique engagée de manière à pouvoir coulisser, tout en étant guidée, dans une collerette (29) de longueur axiale suffisante prévue sur la frette.Push button according to claim 7, characterized in that the attachment to the hoop (22) is ensured by at least two elastic tabs (30), snap-fastened, provided in a cylindrical skirt (27) engaged so as to be able slide, while being guided, in a flange (29) of sufficient axial length provided on the hoop. Bouton-poussoir selon la revendication 7 ou 8, caractérisé par le fait que la frette (22) forme une sorte de dôme qui est destiné à recouvrir le rebord (23) de la valve (2) et comprend intérieurement une partie cylindrique (32), de diamètre supérieur à la collerette (26) de guidage du bouton-poussoir (1), propre à être encliquetée sur le rebord (23) de valve, grâce à une saillie annulaire interne (33).Push button according to claim 7 or 8, characterized in that the hoop (22) forms a sort of dome which is intended to cover the flange (23) of the valve (2) and internally comprises a cylindrical part (32) , of diameter greater than the flange (26) for guiding the push button (1), suitable for being snapped onto the valve flange (23), by virtue of an internal annular projection (33). Bidon aérosol contenant une mousse, du type à tube plongeur (p) de manière à être utilisé tête en haut, caractérisé par le fait qu'il est équipé d'un bouton-poussoir selon l'une quelconque des revendications précédentes.Aerosol can containing foam, of the dip tube type ( p ) so as to be used head up, characterized in that it is equipped with a push button according to any one of the preceding claims.
EP91400749A 1990-04-03 1991-03-20 Push-button device for a spray container and spray container having such a push-button device Expired - Lifetime EP0465275B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT9191400749T ATE105257T1 (en) 1990-04-03 1991-03-20 CONTROL BUTTON FOR SPRAY CANS AND SPRAY CANS WITH SUCH CONTROL BUTTON.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9004247 1990-04-03
FR9004247A FR2660289B1 (en) 1990-04-03 1990-04-03 PUSH BUTTON FOR AEROSOL CAN, AND AEROSOL BOTTLE EQUIPPED WITH SUCH A PUSH BUTTON.

Publications (2)

Publication Number Publication Date
EP0465275A1 true EP0465275A1 (en) 1992-01-08
EP0465275B1 EP0465275B1 (en) 1994-05-04

Family

ID=9395399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400749A Expired - Lifetime EP0465275B1 (en) 1990-04-03 1991-03-20 Push-button device for a spray container and spray container having such a push-button device

Country Status (8)

Country Link
US (1) US5139201A (en)
EP (1) EP0465275B1 (en)
JP (1) JPH0662183B2 (en)
AT (1) ATE105257T1 (en)
CA (1) CA2039548C (en)
DE (1) DE69101885T2 (en)
ES (1) ES2052340T3 (en)
FR (1) FR2660289B1 (en)

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Also Published As

Publication number Publication date
DE69101885D1 (en) 1994-06-09
ES2052340T3 (en) 1994-07-01
DE69101885T2 (en) 1994-12-22
CA2039548C (en) 1995-04-11
JPH04242576A (en) 1992-08-31
CA2039548A1 (en) 1991-10-04
US5139201A (en) 1992-08-18
EP0465275B1 (en) 1994-05-04
JPH0662183B2 (en) 1994-08-17
FR2660289B1 (en) 1992-07-17
FR2660289A1 (en) 1991-10-04
ATE105257T1 (en) 1994-05-15

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