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EP0863089B1 - Dispensing head and dispenser with such head - Google Patents

Dispensing head and dispenser with such head Download PDF

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Publication number
EP0863089B1
EP0863089B1 EP19980400461 EP98400461A EP0863089B1 EP 0863089 B1 EP0863089 B1 EP 0863089B1 EP 19980400461 EP19980400461 EP 19980400461 EP 98400461 A EP98400461 A EP 98400461A EP 0863089 B1 EP0863089 B1 EP 0863089B1
Authority
EP
European Patent Office
Prior art keywords
dispensing
actuating
product
head
valve
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
EP19980400461
Other languages
German (de)
French (fr)
Other versions
EP0863089A1 (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
Original Assignee
LOreal SA
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Filing date
Publication date
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Publication of EP0863089A1 publication Critical patent/EP0863089A1/en
Application granted granted Critical
Publication of EP0863089B1 publication Critical patent/EP0863089B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B65D83/16—Containers 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
    • B65D83/20—Containers 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
    • B65D83/205—Actuator caps, or peripheral actuator skirts, attachable to the aerosol container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/46—Tilt valves

Definitions

  • the invention relates to a dispensing head according to the preamble of claim 1 of a liquid product, in particular a product pressurized with a propellant gas offering comfort improved use, as well as a dispenser comprising this head.
  • the purpose of the present invention is, in particular to propose a dispensing head which can be actuated by pressing on any point of its external surface related.
  • This dispenser can be used in different fields of application and serve for the distribution of cosmetic products (hairspray, deodorant, foam hair, body milk, depilatory foam, liquid foundation, sun milk, gel styling, self-foaming shaving gel) or dermopharmaceuticals (insect repellent, pain reliever or anti-inflammatory), household products, paint, etc., as a liquid, gel, spray or foam.
  • Such dispensers comprise, in known manner, a reservoir containing the product and a propellant, fitted with a distribution valve fitted with a rod control, a dispensing head comprising a movable part provided with a connection means for communicating the mobile part with the valve and order the opening thereof.
  • the connection means is clean to act on the actuating means of the valve.
  • the mobile part includes plus a conduit passing through the connection means and connecting one end from the valve stem to a dispensing orifice provided in the movable part.
  • the head further comprises a fixed part such as a retaining band, capable of being fixed on the tank and provided for the maintenance of the mobile part.
  • the moving parts and fixed are linked together by elastic connecting means.
  • connection means is constituted by a pin integral with the movable part, and able to cooperate with the valve stem, when using a valve with emerging stem.
  • a dispenser has been described in document FR-A-2 718 720, at name of the applicant. This comprising a product reservoir under pressure fitted with a side tilt valve, and surmounted by a distribution.
  • the dispensing head of this dispenser is made in one piece. She has a push button provided with the dispensing orifice, connected to a hoop of fixing, by a set of flexible tabs. Thus, a reentrant zone is formed between the mobile part and the fixed part.
  • the mobile part has a extended support surface for actuating a distribution valve, of the type tilting sideways, pressing any point on the surface of the mobile part.
  • the above dispensing head may have the following disadvantages: when the user presses with his finger on the part mobile, it pivots towards the tank, and the finger can undergo a pinching between the fixed hoop and the movable part.
  • you rinse the dispensing head for example under the tap, you trap a considerable amount of water, this amount of water flowing, so untimely, when changing the inclination of the dispenser.
  • a distribution head comprising a movable part carrying a porous applicator member, and a fixed part, such as a fixing band, a flexible connection between the mobile and fixed parts being produced by a flexible veil, continuous, thin.
  • This distribution head is made up of two parts and has an application member.
  • the dispenser is supported on the surface, which causes opening the valve and dispensing the product.
  • document EP-A-0 669 268, in the name of the applicant, describes, in particular with reference to FIGS. 4 and 5, a dispensing head mounted on a product tank.
  • This head includes a fixing band, snapped onto the tank and a push button fitted with a dispensing nozzle.
  • the push button is linked to the hoop by means of an annular junction zone made in elastomer.
  • the push button has mobility by relative to the tank, sufficient to activate the dispensing valve.
  • the object of the present invention is to perfect distributors of the kind of those described above by improving their comfort of use, in particular, by recommending a bearing surface, in order to trigger the distribution of the product, of a widened extent so that the distribution of the product can be performed by pressing on substantially any point on its surface.
  • the invention provides a dispensing head with a smooth surface that does not have no discontinuity, in particular no cutting line or re-entrant part, between mobile actuating means and head fixing means on the tank. Thanks to the invention, the entire external surface of the head can serve of product sampling area. In addition, the whole head can be rinsed under the tap, without risk of trapping water in the space defined by the fixed and moving parts of the head.
  • the head can be made of a non-slip material, allowing the dispenser to be used of the invention, with wet hands.
  • the actuation and distribution means and the means of connection form a single piece, made of elastomeric material thermoplastic, said valve being operable by an applied pressure at any point on an external surface defined by the means actuation and distribution and connecting means.
  • the elastomeric material has a Shore A hardness included between 30 and 70.
  • This material is advantageously chosen from silicones, natural or synthetic rubbers, nitrile rubbers, polyurethanes, blends of polypropylene and styrene block copolymers - butadiene - styrene, polypropylene and styrene-ethylene block copolymers - butylene - styrene, polypropylene and block copolymers ethylene - propylene - diene.
  • the attachment means consist of a cylindrical hoop forming a single piece with the flexible connection means and the actuation and distribution means, the external surface of the head having substantially no reentrant part.
  • the entire dispensing head is made of material elastomeric.
  • the attachment means advantageously include, a cylindrical portion of greater thickness than that of the means of link.
  • the attachment means are constituted by a cylindrical hoop, made of rigid or semi-rigid thermoplastic material, this hoop, on the one hand, carrying the connecting means and the means actuation and distribution and on the other hand, clinging to said reservoir, the external surface of the head having substantially no reentrant part.
  • a cylindrical hoop made of rigid or semi-rigid thermoplastic material
  • this hoop on the one hand, carrying the connecting means and the means actuation and distribution and on the other hand, clinging to said reservoir, the external surface of the head having substantially no reentrant part.
  • bonding or thermal welding of the respective parts.
  • it is more advantageous to make this connection during molding of the head for example by a technique of bi-injection of the material rigid thermoplastic to form the hoop, and elastomeric material to train the means of actuation and distribution as well as the means of flexible binding.
  • the connecting means and the actuation and distribution means have a general form of dome.
  • the dome thus formed comprises, the dispensing orifice which is connected by the distribution channel to the valve stem.
  • This channel has advantageously a terminal part in the form of a pawn, capable of fitting onto said valve stem.
  • the counter consists of a relatively wall thick, required to provide shape stability necessary for actuation of the valve.
  • the constitution of the dispensing orifice depends on the nature of the product to be distribute and the desired form of distribution. So, to dispense a dose a relatively viscous product such as a shampoo, a styling gel or a cream, a simple orifice can be produced by molding. When we want distribute a relatively liquid product, such as hair spray, under form of spraying into fine droplets (spray), it is desirable to have a nozzle attached to the end of the distribution channel. So you can use commercial vortex or semi-vortex nozzles, allowing to obtain an improved spray, the droplet size of which is much smaller than the droplet size produced by a non-vortex nozzle.
  • a foaming liquid in the form of foam for example example a shaving foam or a styling foam
  • a grid or any other attached device it is possible, in end of the distribution channel, a grid or any other attached device, to create the desired foam texture.
  • the dispensing head thus formed then forms a whole in a single part (fixed part - mobile part). From an industrial point of view, this achievement monobloc allows easy molding, as well as simple assembly and economic.
  • Figure 1 is a partial axial section of a distributor according to a first embodiment of the invention, in the rest position.
  • Figure 2 is a partial axial section of the dispenser of Figure 1 during distribution.
  • Figure 3 is a partial axial section of a distributor according to a second embodiment of the invention, the dispensing head and its fixing band being made of the same material.
  • FIG. 4 represents a view in partial axial section of a dispenser according to another embodiment of the invention, the dispensing head being fitted with an attached spray nozzle.
  • FIG. 5 represents a view in partial axial section of a dispenser according to another embodiment of the invention, the dispensing head being provided with an attached grid, this distributor being designed for distribution of a foaming product.
  • the distributor 1 comprises a dispensing head 2, a valve holder cup 3 equipping a tank 4, generally cylindrical, pressurized with a gas propellant, and having a longitudinal X axis of symmetry.
  • the tank 4 contains a liquid or gelled product P, for example cosmetic or dermo-pharmaceutical, to be distributed in the form of a thread jet, spray, gel or foam, product P being pressurized using a propellant G appropriate.
  • a tank cylindrical in which the product is placed separate from the gas propellant by means of a movable piston.
  • Such a device is described, for example, in document FR-A- 2 731 683.
  • the tank 4 is a cylindrical aluminum canister of circular cross section, whose apex 4b is shaped like a warhead.
  • the top 4b carries the valve holder cup 3 which is fixed to the tank by a crimping bead 4c.
  • a distribution valve 6 this valve comprising an emerging actuating rod 8, actuable by tilting lateral.
  • the valve 6 is connected to a dip tube 10 communicating with the product P.
  • the junction area of the warhead 4b with the cylindrical wall 4a of the tank has a peripheral latching groove 12. This groove 12 serves to the fixing of the dispensing head 2.
  • the dispensing head 2 comprises a cylindrical hoop 14, provided at its lower end with a internal bead 16 which cooperates with the groove 12 of the reservoir.
  • the hoop 14 On the opposite side at the bead 16, the hoop 14 has a peripheral recess 18, formed by a cylindrical part 20 of smaller diameter than the diameter of the hoop 14. In the recess 18 is disposed, in a removable manner, a cover of protection 22.
  • the hoop 14, with the cylindrical part 20, is made of a material relatively rigid thermoplastic, for example polypropylene.
  • the cylindrical part 20 is connected to a deformable dome 24, by through a junction zone 25.
  • the dome 24 is substantially shaped half-sphere and constitutes an actuation button for opening the valve.
  • the dome 24 is made of an elastomeric material, for example a mixture of propylene and styrene - ethylene - butylene-styrene block copolymer.
  • the hoop 14 and the dome 24 are produced by bi-injection of the two corresponding materials.
  • the base of the dome 24 consists of an annular part 26, itself adjoining part 20 of hoop 14.
  • the dome 24 has internally a hollow central pin 28. Its free end is provided with a bore 30, capable of fitting onto the valve stem 8.
  • the pin 28 is crossed by an axial channel 32 of a routing conduit which is connected to a transverse or radial channel 34 leading to the dispensing orifice 38.
  • the channel transverse 34 and the orifice 38 of central axis Y form an obtuse angle ⁇ with the axis X of the reservoir 3.
  • the pin 28 has a relatively large diameter, which provides the shape stability necessary to cooperate with the valve stem. According to the embodiment considered, it should be noted that an area of slight depression 36 is provided, at the bottom of which is the orifice 38.
  • the user To dispense a dose of product, the user enters dispenser 1 substantially at the level of the hoop 14. Whatever the angular position of the dispenser, the user places his index finger anywhere on the surface dome 24 or junction area 25, applying pressure towards of the X axis, as symbolized by the arrow F (see Figure 2).
  • the pressure F exerted by the user causes a deformation of the dome 24, which causes a inclination of pin 28 and valve stem 8.
  • the valve is then opened and product P is distributed.
  • the product P is, for example a composition gelled, it accumulates in depression 36 and its surroundings, where it can be collected by the user under proper conditions.
  • depression 36 at the bottom of which is disposed the dispensing orifice 38, is provided to avoid that the user inadvertently places his finger on said orifice 38. It is good understood that it is not necessary to achieve depression 36. After use, the dispensing head can be rinsed under the tap, without risk of entrapment of water inside the dispensing head.
  • FIG. 3 shows a dispenser 101 according to a second embodiment of the invention.
  • the dispensing head 102 is carried by a hoop 114 molded integrally with the dome 124 in a single material elastomeric.
  • the hoop 114 has a thickness larger wall. Thus, any risk of separation can be avoided during actuation of the valve stem 108.
  • FIG. 4 shows a dispenser 201, according to another embodiment of the invention.
  • the dispensing head 202 comprises a dome 224 in which depression 236 is practiced. At the bottom of this depression 236 is formed an annular recess 242 intended to accommodate a nozzle vortex 240.
  • a distribution channel comprising an axial part 232 and a radial part 234, communicates the valve stem 208 with an orifice spray 238 arranged in the nozzle 240.
  • the distributor 201 is suitable, in particular to the distribution of a relatively fluid product such as a lacquer for hair.
  • FIG. 5 shows a dispenser 301 according to another embodiment of the invention.
  • the corresponding parts of those of the embodiment of Figure 4 have reference numbers increased by 100. Their description does not will only be partially taken over.
  • the dispenser 301 does not have a spray nozzle, but a part added in the form of a grid 340 provided with a flange 344.
  • the grid comprises a multitude of openings 338.
  • the dispensing head 302 has a recess 342, for example of circular or rectangular shape, in which the edge of the grid 340 is embedded.
  • a distribution channel 332, 334 connects the valve stem 308 with an expansion chamber 335 located straight behind the grid 340.
  • the distributor 301 is particularly suitable for distribution a foaming product, such as a shaving foam. After the distribution of product and its expansion in room 335, aerated foam builds up on the external surface of the grid 340, where it can be taken.

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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)
  • Confectionery (AREA)

Description

L'invention est relative à une tête de distribution selon le préambule de la revendication 1 d'un produit liquide, notamment un produit mis sous pression à l'aide d'un gaz propulseur présentant un confort d'utilisation amélioré, ainsi qu'à un distributeur comportant cette tête. Le but de la présente invention est, notamment de proposer une tête de distribution pouvant être actionnée par appui sur n'importe quel point de sa surface externe apparente. Ce distributeur peut être utilisé dans différents domaines d'application et servir pour la distribution de produits cosmétiques (laque, déodorant, mousse capillaire, lait corporel, mousse dépilatoire, fond de teint liquide, lait solaire, gel de coiffage, gel de rasage automoussant) ou dermopharmaceutiques (insectifuge, analgésique ou anti-inflammatoire), de produits ménagers, de la peinture, etc., sous forme de liquide, de gel, de spray ou de mousse.The invention relates to a dispensing head according to the preamble of claim 1 of a liquid product, in particular a product pressurized with a propellant gas offering comfort improved use, as well as a dispenser comprising this head. The purpose of the present invention is, in particular to propose a dispensing head which can be actuated by pressing on any point of its external surface related. This dispenser can be used in different fields of application and serve for the distribution of cosmetic products (hairspray, deodorant, foam hair, body milk, depilatory foam, liquid foundation, sun milk, gel styling, self-foaming shaving gel) or dermopharmaceuticals (insect repellent, pain reliever or anti-inflammatory), household products, paint, etc., as a liquid, gel, spray or foam.

De tels distributeurs comprennent, de façon connue, un réservoir contenant le produit et un gaz propulseur, muni d'une valve de distribution équipée d'une tige de commande, une tête de distribution comprenant une partie mobile munie d'un moyen de raccordement pour mettre en communication la partie mobile avec la valve et commander l'ouverture de celle-ci. Le moyen de raccordement est propre à agir sur le moyen d'actionnement de la valve. La partie mobile comprend de plus un conduit traversant le moyen de raccordement et raccordant une extrémité de la tige de valve à un orifice de distribution prévu dans la partie mobile. La tête comprend, en outre, une partie fixe telle qu'une frette de retenue, apte à se fixer sur le réservoir et prévue pour le maintien de la partie mobile. Les parties mobile et fixe sont liées ensemble par des moyens de liaison élastiques .Such dispensers comprise, in known manner, a reservoir containing the product and a propellant, fitted with a distribution valve fitted with a rod control, a dispensing head comprising a movable part provided with a connection means for communicating the mobile part with the valve and order the opening thereof. The connection means is clean to act on the actuating means of the valve. The mobile part includes plus a conduit passing through the connection means and connecting one end from the valve stem to a dispensing orifice provided in the movable part. The head further comprises a fixed part such as a retaining band, capable of being fixed on the tank and provided for the maintenance of the mobile part. The moving parts and fixed are linked together by elastic connecting means.

En général, le moyen de raccordement est constitué par un pion solidaire de la partie mobile, et apte à coopérer avec la tige de valve, lorsqu'on utilise une valve à tige émergente.In general, the connection means is constituted by a pin integral with the movable part, and able to cooperate with the valve stem, when using a valve with emerging stem.

Un distributeur a été décrit dans le document FR-A-2 718 720, au nom de la demanderesse. Celui-ci comportant un réservoir de produit sous pression muni d'une valve à basculement latéral, et surmonté d'une tête de distribution.A dispenser has been described in document FR-A-2 718 720, at name of the applicant. This comprising a product reservoir under pressure fitted with a side tilt valve, and surmounted by a distribution.

La tête de distribution de ce distributeur est réalisée en une seule pièce. Elle comporte un bouton-poussoir muni de l'orifice de distribution, relié à une frette de fixation, par un ensemble de languettes flexibles. Ainsi, une zone rentrante est constituée entre la partie mobile et la partie fixe. La partie mobile présente une surface d'appui étendue permettant d'actionner une valve de distribution, du type à basculement latéral, en appuyant sur n'importe quel point de la surface de la partie mobile.The dispensing head of this dispenser is made in one piece. She has a push button provided with the dispensing orifice, connected to a hoop of fixing, by a set of flexible tabs. Thus, a reentrant zone is formed between the mobile part and the fixed part. The mobile part has a extended support surface for actuating a distribution valve, of the type tilting sideways, pressing any point on the surface of the mobile part.

La demanderesse a constaté que la tête de distribution ci-dessus, peut présenter les inconvénients suivants : lorsque l'utilisateur appuie avec le doigt sur la partie mobile, celle-ci pivote en direction du réservoir, et le doigt peut subir un pincement entre la frette fixe et la partie mobile. De plus, après utilisation, lorsqu'on rince la tête de distribution, par exemple sous le robinet, on piège une quantité d'eau considérable, cette quantité d'eau se déversant, de façon intempestive, lorsqu'on change l'inclinaison du distributeur.The Applicant has found that the above dispensing head may have the following disadvantages: when the user presses with his finger on the part mobile, it pivots towards the tank, and the finger can undergo a pinching between the fixed hoop and the movable part. In addition, after use, when you rinse the dispensing head, for example under the tap, you trap a considerable amount of water, this amount of water flowing, so untimely, when changing the inclination of the dispenser.

On connaít en outre, par le document FR-A-2 713 060, également au nom de la demanderesse, une tête de distribution comportant une partie mobile portant un organe d'application poreux, et un partie fixe, telle qu'une frette de fixation, une liaison souple entre les parties mobile et fixe étant réalisée par un voile souple, continu, de faible épaisseur. Cette tête de distribution est constituée en deux pièces et comporte un organe d'application. Pour appliquer le produit sur une surface, le distributeur est mis en appui sur la surface, ce qui provoque l'ouverture de la valve et la distribution du produit.We also know, from document FR-A-2 713 060, also in the name of Applicant, a distribution head comprising a movable part carrying a porous applicator member, and a fixed part, such as a fixing band, a flexible connection between the mobile and fixed parts being produced by a flexible veil, continuous, thin. This distribution head is made up of two parts and has an application member. To apply the product on a surface, the dispenser is supported on the surface, which causes opening the valve and dispensing the product.

De plus, le document EP-A-0 669 268, au nom de la demanderesse, décrit, notamment en référence aux figures 4 et 5, une tête de distribution montée sur un réservoir de produit. Cette tête comprend une frette de fixation, encliquetée sur le réservoir et un bouton-poussoir muni d'une buse de distribution. Le bouton-poussoir est lié à la frette au moyen d'une zone annulaire de jonction réalisée en élastomère. Ainsi, lorsque l'utilisateur appuie sur le bouton poussoir, en vue de distribuer une dose de produit, le bouton poussoir présente une mobilité par rapport au réservoir, suffisante pour actionner la valve de distribution.In addition, document EP-A-0 669 268, in the name of the applicant, describes, in particular with reference to FIGS. 4 and 5, a dispensing head mounted on a product tank. This head includes a fixing band, snapped onto the tank and a push button fitted with a dispensing nozzle. The push button is linked to the hoop by means of an annular junction zone made in elastomer. Thus, when the user presses the push button, in order to distribute a dose of product, the push button has mobility by relative to the tank, sufficient to activate the dispensing valve.

Les distributeurs connus précités fonctionnent bien, à condition que la valve est sollicitée en appuyant sur le bouton poussoir sous un angle compris entre environ 50° et 0° par rapport à l'axe de la valve. Dans ces distributeurs, dès que le bouton-poussoir est sollicité sensiblement latéralement, la force nécessaire pour l'ouverture de la valve augmente considérablement. En effet, la tige de valve étant emboítée dans un canal de distribution relativement rigide du bouton-poussoir, la tige de valve subit une déformation importante pouvant conduire jusqu'à la casse de la tige, notamment au bout de nombreuses utilisations.The aforementioned known distributors work well, provided that the valve is requested by pressing the push button at an angle of between approximately 50 ° and 0 ° relative to the axis of the valve. In these distributors, as soon as the push button is pressed substantially laterally, the force required to the valve opening increases considerably. Indeed, the valve stem being fitted into a relatively rigid distribution channel of the push button, the valve stem undergoes a significant deformation which can lead until the stem breaks, especially after many uses.

La présente invention a pour but, de parfaire les distributeurs du genre de ceux décrits précédemment par amélioration de leur confort d'utilisation, notamment, en préconisant une surface d'appui, en vue de déclencher la distribution du produit, d'une étendue élargie de sorte que la distribution du produit puisse être effectuée par un appui sur sensiblement n'importe quel point de sa surface. En outre, l'invention propose une tête de distribution à surface lisse ne présentant pas de discontinuité, notamment pas de ligne de découpe ou de partie rentrante, entre des moyens d'actionnement mobiles et des moyens de fixation de la tête sur le réservoir. Grâce à l'invention, toute la surface externe de la tête peut servir de surface de prélèvement du produit. De plus, toute la tête peut être rincée sous le robinet, sans risque de faire piéger de l'eau dans l'espace définie par les pièces fixes et mobile de la tête. Selon un aspect particulier de l'invention, la tête peut être réalisée en un matériau antidérapant, permettant d'utiliser le distributeur de l'invention, avec les mains mouillées. The object of the present invention is to perfect distributors of the kind of those described above by improving their comfort of use, in particular, by recommending a bearing surface, in order to trigger the distribution of the product, of a widened extent so that the distribution of the product can be performed by pressing on substantially any point on its surface. In in addition, the invention provides a dispensing head with a smooth surface that does not have no discontinuity, in particular no cutting line or re-entrant part, between mobile actuating means and head fixing means on the tank. Thanks to the invention, the entire external surface of the head can serve of product sampling area. In addition, the whole head can be rinsed under the tap, without risk of trapping water in the space defined by the fixed and moving parts of the head. According to a particular aspect of the invention, the head can be made of a non-slip material, allowing the dispenser to be used of the invention, with wet hands.

De plus, grâce à l'invention, il est possible d'obtenir des têtes de distribution particulièrement esthétiques, car l'invention permet une grande liberté morphologique de réalisation.In addition, thanks to the invention, it is possible to obtain dispensing heads particularly aesthetic, because the invention allows great freedom morphological realization.

La présente invention a pour premier objet une tête de distribution d'un produit liquide comprenant

  • des moyens d'accrochage aptes à s'accrocher sur un réservoir contenant le produit sous pression, le réservoir étant muni d'une valve de distribution à tige d'actionnement émergente et dont l'ouverture est commandée par basculement latéral de la tige,
  • des moyens d'actionnement et de distribution dudit produit, mobiles par rapport aux moyens d'accrochage, les moyens d'actionnement et de distribution comportant, en outre, un orifice de distribution et un canal de sortie reliant ledit orifice à la tige de valve,
  • des moyens de liaison disposés entre les moyens d'accrochage et les moyens d'actionnement et de distribution.
The present invention firstly relates to a head for dispensing a liquid product comprising
  • hooking means able to hang on a tank containing the product under pressure, the tank being provided with a dispensing valve with an emerging actuating rod and the opening of which is controlled by lateral tilting of the rod,
  • actuation and distribution means of said product, movable relative to the hooking means, actuation and distribution means further comprising a dispensing orifice and an outlet channel connecting said orifice to the valve stem ,
  • connecting means arranged between the attachment means and the actuation and distribution means.

Selon l'invention, les moyens d'actionnement et de distribution et les moyens de liaison forment une seule pièce, réalisée en matériau élastomérique thermoplastique, ladite valve pouvant être actionnée par une pression appliquée en n'importe quel point d'une surface externe définie par les moyens d'actionnement et de distribution et les moyens de liaison.According to the invention, the actuation and distribution means and the means of connection form a single piece, made of elastomeric material thermoplastic, said valve being operable by an applied pressure at any point on an external surface defined by the means actuation and distribution and connecting means.

Typiquement, le matériau élastomérique présente une dureté Shore A comprise entre 30 et 70. Ce matériau est choisi, avantageusement, parmi les silicones, les caoutchoucs naturels ou synthétiques, les caoutchoucs de nitrile, les polyuréthanes, les mélanges de polypropylène et de copolymères de bloc styrène - butadiène - styrène, de polypropylène et de copolymères de bloc styrène-éthylène - butylène - styrène, de polypropylène et de copolymères de bloc éthylène - propylène - diène.Typically, the elastomeric material has a Shore A hardness included between 30 and 70. This material is advantageously chosen from silicones, natural or synthetic rubbers, nitrile rubbers, polyurethanes, blends of polypropylene and styrene block copolymers - butadiene - styrene, polypropylene and styrene-ethylene block copolymers - butylene - styrene, polypropylene and block copolymers ethylene - propylene - diene.

Selon un mode de réalisation intéressant de l'invention, les moyens d'accrochage sont constitués par une frette cylindrique formant une seule et même pièce avec les moyens de liaison souple et les moyens d'actionnement et de distribution, la surface externe de la tête ne présentant sensiblement aucune partie rentrante. Dans ce cas, la tête de distribution entière est constituée de matériau élastomérique. Pour assurer une stabilité de forme nécessaire à la fixation de la tête sur le réservoir, les moyens d'accrochage comportent, avantageusement, une portion cylindrique d'épaisseur plus importante que celle des moyens de liaison.According to an interesting embodiment of the invention, the attachment means consist of a cylindrical hoop forming a single piece with the flexible connection means and the actuation and distribution means, the external surface of the head having substantially no reentrant part. In this case, the entire dispensing head is made of material elastomeric. To ensure the shape stability necessary for fixing the head on the tank, the attachment means advantageously include, a cylindrical portion of greater thickness than that of the means of link.

Selon un autre mode de réalisation, les moyens d'accrochage sont constitués par une frette cylindrique, réalisée en matériau thermoplastique rigide ou semi-rigide, cette frette, d'une part, portant les moyens de liaison et les moyens d'actionnement et de distribution et d'autre part, s'accrochant audit réservoir, la surface externe de la tête ne présentant sensiblement aucune partie rentrante. Pour assurer la solidarisation de la frette avec la partie en élastomère, on peut envisager le collage ou le soudage thermique des parties respectives. Cependant, il est plus avantageux de réaliser cette solidarisation lors du moulage de la tête, par exemple par une technique de bi-injection du matériau thermoplastique rigide pour former la frette, et du matériau élastomérique pour former les moyens d'actionnement et de distribution ainsi que les moyens de liaison souple.According to another embodiment, the attachment means are constituted by a cylindrical hoop, made of rigid or semi-rigid thermoplastic material, this hoop, on the one hand, carrying the connecting means and the means actuation and distribution and on the other hand, clinging to said reservoir, the external surface of the head having substantially no reentrant part. To secure the hoop with the elastomer part, it is possible to consider bonding or thermal welding of the respective parts. However, it is more advantageous to make this connection during molding of the head, for example by a technique of bi-injection of the material rigid thermoplastic to form the hoop, and elastomeric material to train the means of actuation and distribution as well as the means of flexible binding.

Selon un autre aspect intéressant de l'invention, les moyens de liaison et les moyens d'actionnement et de distribution présentent une forme générale de dôme. Ainsi, il est possible, pour l'utilisateur de commander l'ouverture de la valve de distribution en appuyant sur sensiblement n'importe quel point de la surface externe du dôme. Le dôme ainsi constitué comporte, l'orifice de distribution qui est relié par le canal de distribution à la tige de valve. Ce canal comporte avantageusement une partie terminale sous forme de pion, apte à s'emboíter sur ladite tige de valve. Dans ce cas, le pion est constitué d'une paroi relativement épaisse, requise pour assurer une stabilité de forme nécessaire pour l'actionnement de la valve.According to another interesting aspect of the invention, the connecting means and the actuation and distribution means have a general form of dome. Thus, it is possible for the user to control the opening of the valve. dispensing by pressing on substantially any point on the surface external of the dome. The dome thus formed comprises, the dispensing orifice which is connected by the distribution channel to the valve stem. This channel has advantageously a terminal part in the form of a pawn, capable of fitting onto said valve stem. In this case, the counter consists of a relatively wall thick, required to provide shape stability necessary for actuation of the valve.

La constitution de l'orifice de distribution dépend de la nature du produit à distribuer et de la forme de distribution souhaitées. Ainsi, pour distribuer une dose d'un produit relativement visqueux tel qu'un shampooing, un gel de coiffage ou une crème, on peut réaliser un orifice simple par moulage. Lorsqu'on souhaite distribuer un produit relativement liquide, comme une laque pour cheveux, sous forme de pulvérisation en fines gouttelettes (spray), il est souhaitable de disposer une buse rapportée en bout du canal de distribution. Ainsi, on peut utiliser des buses tourbillonnaires ou semi-tourbillonnaires du commerce, permettant d'obtenir un spray amélioré, dont la taille des gouttelettes est bien inférieure à la taille des gouttelettes, produite par une buse non tourbillonnaire.The constitution of the dispensing orifice depends on the nature of the product to be distribute and the desired form of distribution. So, to dispense a dose a relatively viscous product such as a shampoo, a styling gel or a cream, a simple orifice can be produced by molding. When we want distribute a relatively liquid product, such as hair spray, under form of spraying into fine droplets (spray), it is desirable to have a nozzle attached to the end of the distribution channel. So you can use commercial vortex or semi-vortex nozzles, allowing to obtain an improved spray, the droplet size of which is much smaller than the droplet size produced by a non-vortex nozzle.

Lorsqu'on souhaite distribuer un liquide moussant sous forme de mousse, par exemple une mousse à raser ou une mousse de coiffage, on peut dispose, en bout du canal de distribution, une grille ou tout autre dispositif rapporté, permettant de créer la texture de mousse souhaitée.When it is desired to distribute a foaming liquid in the form of foam, for example example a shaving foam or a styling foam, it is possible, in end of the distribution channel, a grid or any other attached device, to create the desired foam texture.

La tête de distribution ainsi constituée forme alors un ensemble en une seule pièce (partie fixe - partie mobile). Du point de vue industriel, cette réalisation monobloc permet un moulage aisé, ainsi qu'un assemblage simple et économique.The dispensing head thus formed then forms a whole in a single part (fixed part - mobile part). From an industrial point of view, this achievement monobloc allows easy molding, as well as simple assembly and economic.

La présente invention a aussi pour objet un distributeur perfectionné pour la distribution d'un produit liquide ou gélifié, comprenant :

  • un réservoir contenant ledit produit et un gaz propulseur, muni d'une valve de distribution à tige d'actionnement émergente et dont l'ouverture est commandée par basculement latéral de la tige, et
  • une tête de distribution coiffant ledit réservoir, cette tête de distribution étant telle que décrite précédemment.
The present invention also relates to an improved dispenser for dispensing a liquid or gelled product, comprising:
  • a reservoir containing said product and a propellant gas, provided with a dispensing valve with an emerging actuating rod and the opening of which is controlled by lateral tilting of the rod, and
  • a dispensing head covering said reservoir, this dispensing head being as described above.

Grâce à la présente invention, il est possible de réaliser des têtes de distribution permettant une grande liberté de réalisation du point de vue morphologique de la tête.Thanks to the present invention, it is possible to produce dispensing heads allowing a great freedom of realization from the morphological point of view of the head.

Pour mieux faire comprendre l'objet de la présente invention, on va en décrire, à titre d'exemple purement illustratif et nullement limitatif, un mode de réalisation représenté sur les figures annexées.To better understand the object of the present invention, we will describe, purely illustrative and in no way limitative, an embodiment shown in the accompanying figures.

La figure 1 est une coupe axiale partielle d'un distributeur conforme à un premier mode de réalisation de l'invention, en position de repos.Figure 1 is a partial axial section of a distributor according to a first embodiment of the invention, in the rest position.

La figure 2 est une coupe axiale partielle du distributeur de la figure 1 en cours de distribution.Figure 2 is a partial axial section of the dispenser of Figure 1 during distribution.

La figure 3 est une coupe axiale partielle d'un distributeur conforme à un second mode de réalisation de l'invention, la tête de distribution et sa frette de fixation étant réalisées en un même matériau.Figure 3 is a partial axial section of a distributor according to a second embodiment of the invention, the dispensing head and its fixing band being made of the same material.

La figure 4 représente une vue en coupe axiale partielle d'un distributeur conforme à un autre mode de réalisation de l'invention, la tête de distribution étant munie d'une buse de pulvérisation rapportée.FIG. 4 represents a view in partial axial section of a dispenser according to another embodiment of the invention, the dispensing head being fitted with an attached spray nozzle.

La figure 5 représente une vue en coupe axiale partielle d'un distributeur conforme à un autre mode de réalisation de l'invention, la tête de distribution étant munie d'une grille rapportée, ce distributeur étant conçu pour la distribution d'un produit moussant.FIG. 5 represents a view in partial axial section of a dispenser according to another embodiment of the invention, the dispensing head being provided with an attached grid, this distributor being designed for distribution of a foaming product.

En se rapportant aux figures 1 et 2 annexées, on peut voir un distributeur de produit liquide désigné dans son ensemble par la référence 1. Le distributeur 1 comporte une tête de distribution 2, une coupelle porte-valve 3 équipant un réservoir 4, généralement cylindrique, mis sous pression à l'aide d'un gaz propulseur, et présentant un axe X longitudinal de symétrie. Le réservoir 4 contient, un produit liquide ou gélifié P, par exemple cosmétique ou dermo-pharmaceutique, à distribuer sous forme de jet filiforme, de spray, de gel ou de mousse, le produit P étant mis sous pression à l'aide d'un gaz propulseur G approprié. Le cas échéant, il est possible d'utiliser un réservoir dans lequel est placée une poche contenant le produit à distribuer, le gaz propulseur étant disposé à l'extérieur de la poche. Il est possible également, d'utiliser un réservoir cylindrique dans lequel est disposé le produit, de manière séparée du gaz propulseur au moyen d'un piston mobile. Un tel dispositif est décrit, par exemple, dans le document FR-A- 2 731 683.Referring to Figures 1 and 2 attached, we can see a dispenser liquid product designated as a whole by the reference 1. The distributor 1 comprises a dispensing head 2, a valve holder cup 3 equipping a tank 4, generally cylindrical, pressurized with a gas propellant, and having a longitudinal X axis of symmetry. The tank 4 contains a liquid or gelled product P, for example cosmetic or dermo-pharmaceutical, to be distributed in the form of a thread jet, spray, gel or foam, product P being pressurized using a propellant G appropriate. If necessary, it is possible to use a tank in which is placed a pocket containing the product to be dispensed, the propellant being arranged outside the pocket. It is also possible to use a tank cylindrical in which the product is placed, separate from the gas propellant by means of a movable piston. Such a device is described, for example, in document FR-A- 2 731 683.

Le réservoir 4 est un bidon en aluminium, cylindrique de section droite circulaire, dont le sommet 4b est conformé en ogive. Le sommet 4b porte la coupelle porte-valve 3 qui est fixée sur le réservoir par un bourrelet de sertissage 4c. Dans la coupelle 3, est fixée par dudgeonnnage, une valve de distribution 6, cette valve comprenant une tige d'actionnement 8 émergente, actionnable par basculement latéral. La valve 6 est raccordée à un tube plongeur 10 communiquant avec le produit P. La zone de jonction de l'ogive 4b avec la paroi cylindrique 4a du réservoir comporte une gorge d'encliquetage 12 périphérique. Cette gorge 12 sert à la fixation de la tête de distribution 2. A cet effet, la tête de distribution 2 comporte une frette cylindrique 14, munie à son extrémité inférieure d'un bourrelet interne 16 qui coopère avec la gorge 12 du réservoir. Du côté opposé au bourrelet 16, la frette 14 présente un décrochement périphérique 18, formée par une partie cylindrique 20 de diamètre plus faible que le diamètre de la frette 14. Dans le décrochement 18 est disposé, de manière amovible, un capot de protection 22. La frette 14, avec la partie cylindrique 20, est réalisée un matériau thermoplastique relativement rigide, par exemple en polypropylène.The tank 4 is a cylindrical aluminum canister of circular cross section, whose apex 4b is shaped like a warhead. The top 4b carries the valve holder cup 3 which is fixed to the tank by a crimping bead 4c. In the cup 3, is fixed by expansion, a distribution valve 6, this valve comprising an emerging actuating rod 8, actuable by tilting lateral. The valve 6 is connected to a dip tube 10 communicating with the product P. The junction area of the warhead 4b with the cylindrical wall 4a of the tank has a peripheral latching groove 12. This groove 12 serves to the fixing of the dispensing head 2. For this purpose, the dispensing head 2 comprises a cylindrical hoop 14, provided at its lower end with a internal bead 16 which cooperates with the groove 12 of the reservoir. On the opposite side at the bead 16, the hoop 14 has a peripheral recess 18, formed by a cylindrical part 20 of smaller diameter than the diameter of the hoop 14. In the recess 18 is disposed, in a removable manner, a cover of protection 22. The hoop 14, with the cylindrical part 20, is made of a material relatively rigid thermoplastic, for example polypropylene.

La partie cylindrique 20 est raccordée à un dôme déformable 24, par l'intermédiaire d'une zone de jonction 25. Le dôme 24 est sensiblement en forme de demi-sphère et constitue un bouton d'actionnement pour l'ouverture de la valve. Le dôme 24 est réalisé en un matériau élastomérique, par exemple un mélange de propylène et de copolymère de bloc styrène - éthylène - butylène-styrène.The cylindrical part 20 is connected to a deformable dome 24, by through a junction zone 25. The dome 24 is substantially shaped half-sphere and constitutes an actuation button for opening the valve. The dome 24 is made of an elastomeric material, for example a mixture of propylene and styrene - ethylene - butylene-styrene block copolymer.

Avantageusement, la frette 14 et le dôme 24 sont réalisés par bi-injection des deux matériaux correspondants.Advantageously, the hoop 14 and the dome 24 are produced by bi-injection of the two corresponding materials.

La base du dôme 24 est constituée d'une partie annulaire 26, elle-même attenante à la partie 20 de la frette 14.The base of the dome 24 consists of an annular part 26, itself adjoining part 20 of hoop 14.

Le dôme 24 comporte intérieurement un pion central creux 28. Son extrémité libre est pourvue d'un alésage 30, apte à s'emboíter sur la tige de valve 8. Le pion 28 est traversé par un canal axial 32 d'un conduit d'acheminement qui se raccorde à un canal transversal ou radial 34 conduisant à l'orifice de distribution 38. Le canal transversal 34 et l'orifice 38 d'axe central Y forment un angle obtus β avec l'axe X du réservoir 3. Le pion 28 présente un diamètre relativement important, ce qui lui confère une stabilité de forme nécessaire pour coopérer avec la tige de valve. Selon l'exemple de réalisation considéré, il est à noter, qu'une zone de légère dépression 36 est prévue, au fond de laquelle est situé l'orifice 38.The dome 24 has internally a hollow central pin 28. Its free end is provided with a bore 30, capable of fitting onto the valve stem 8. The pin 28 is crossed by an axial channel 32 of a routing conduit which is connected to a transverse or radial channel 34 leading to the dispensing orifice 38. The channel transverse 34 and the orifice 38 of central axis Y form an obtuse angle β with the axis X of the reservoir 3. The pin 28 has a relatively large diameter, which provides the shape stability necessary to cooperate with the valve stem. According to the embodiment considered, it should be noted that an area of slight depression 36 is provided, at the bottom of which is the orifice 38.

Pour distribuer une dose de produit, l'utilisateur saisit le distributeur 1 sensiblement au niveau de la frette 14. Quelle que soit la position angulaire du distributeur, l'utilisateur place son index sur n'importe quel endroit de la surface du dôme 24 ou de la zone de jonction 25, en exerçant une pression en direction de l'axe X, comme symbolisé par la flèche F (voir figure 2). La pression F exercée par l'utilisateur provoque une déformation du dôme 24, ce qui entraíne une inclinaison du pion 28 et de la tige 8 de valve. La valve est alors ouverte et du produit P est distribué. Lorsque le produit P est, par exemple une composition gélifiée, il s'accumule dans la dépression 36 et son entourage, où il peut être prélevé, par l'utilisateur dans des conditions propres. Lorsque cesse la pression F sur le dôme, ce dernier revient, par élasticité, dans sa forme initiale, entraíne le pion 28 en position axiale et provoque la fermeture de la valve. La dépression 36 au fond de laquelle est disposé l'orifice de distribution 38, est prévue pour éviter que l'utilisateur ne place, par inadvertance, le doigt sur ledit orifice 38. Il est bien entendu qu'il n'est pas nécessaire de réaliser la dépression 36. Après utilisation, la tête de distribution peut être rincée sous le robinet, sans risque de piégeage d'eau à l'intérieur de la tête de distribution.To dispense a dose of product, the user enters dispenser 1 substantially at the level of the hoop 14. Whatever the angular position of the dispenser, the user places his index finger anywhere on the surface dome 24 or junction area 25, applying pressure towards of the X axis, as symbolized by the arrow F (see Figure 2). The pressure F exerted by the user causes a deformation of the dome 24, which causes a inclination of pin 28 and valve stem 8. The valve is then opened and product P is distributed. When the product P is, for example a composition gelled, it accumulates in depression 36 and its surroundings, where it can be collected by the user under proper conditions. When the pressure stops F on the dome, the latter returns, by elasticity, in its initial form, causes the pin 28 in the axial position and causes the valve to close. Depression 36 at the bottom of which is disposed the dispensing orifice 38, is provided to avoid that the user inadvertently places his finger on said orifice 38. It is good understood that it is not necessary to achieve depression 36. After use, the dispensing head can be rinsed under the tap, without risk of entrapment of water inside the dispensing head.

La figure 3 montre un distributeur 101 selon un second mode de réalisation de l'invention. Les pièces correspondantes de celles de la réalisation précédente comportent des numéros de référence augmentés de 100. Leur description ne sera reprise que partiellement, de manière à faire ne faire ressortir que les différences. Suivant la figure 3, la tête de distribution 102, est portée par une frette 114 moulée intégralement avec le dôme 124 en un unique matériau élastomérique. Pour pouvoir assurer une bonne tenue de la tête sur le récipient 104, par rapport à la frette 14 de la figure 1, la frette 114 présente une épaisseur de paroi plus importante. Ainsi, tout risque de désolidarisation peut être évité lors de l'actionnement de la tige de valve 108.FIG. 3 shows a dispenser 101 according to a second embodiment of the invention. The corresponding parts from those of the previous realization have reference numbers increased by 100. Their description does not will be taken up only partially, so as to highlight only the differences. According to FIG. 3, the dispensing head 102 is carried by a hoop 114 molded integrally with the dome 124 in a single material elastomeric. To be able to ensure a good hold of the head on the container 104, with respect to the hoop 14 of FIG. 1, the hoop 114 has a thickness larger wall. Thus, any risk of separation can be avoided during actuation of the valve stem 108.

La figure 4 montre un distributeur 201, selon un autre mode de réalisation de l'invention. Les pièces correspondantes de celles de la réalisation de la figure 1 comportent des numéros de référence augmentés de 200. Leur description ne sera reprise que partiellement, de manière à faire ne faire ressortir que les différences. Suivant la figure 4, la tête de distribution 202, comporte un dôme 224 dans lequel est pratiquée une dépression 236. Au fond de cette dépression 236 est ménagé un évidemment annulaire 242 destiné à loger une buse tourbillonnaire 240. Un canal de distribution, comportant une partie axiale 232 et une partie radiale 234, met en communication la tige de valve 208 avec un orifice de pulvérisation 238 agencé dans la buse 240. Le distributeur 201 convient , en particulier, à la distribution d'un produit relativement fluide comme une laque pour cheveux.FIG. 4 shows a dispenser 201, according to another embodiment of the invention. The corresponding parts of those of the embodiment of Figure 1 have reference numbers increased by 200. Their description does not will be taken up only partially, so as to highlight only the differences. According to FIG. 4, the dispensing head 202 comprises a dome 224 in which depression 236 is practiced. At the bottom of this depression 236 is formed an annular recess 242 intended to accommodate a nozzle vortex 240. A distribution channel, comprising an axial part 232 and a radial part 234, communicates the valve stem 208 with an orifice spray 238 arranged in the nozzle 240. The distributor 201 is suitable, in particular to the distribution of a relatively fluid product such as a lacquer for hair.

La figure 5 montre un distributeur 301 selon un autre mode de réalisation de l'invention. Les pièces correspondantes de celles de la réalisation de la figure 4 comportent des numéros de référence augmentés de 100. Leur description ne sera reprise que partiellement. Par rapport au distributeur de la figure 4, le distributeur 301, ne comporte pas de buse de pulvérisation, mais une pièce rapportée sous forme de grille 340 munie d'un rebord 344. La grille comporte une multitude d'ouvertures 338. Suivant la figure 5, la tête de distribution 302 comporte un évidemment 342, par exemple de forme circulaire ou rectangulaire, dans lequel est encastré le rebord de la grille 340. Un canal de distribution 332, 334 relie la tige de valve 308 avec une chambre d'expansion 335 située droit derrière la grille 340. Le distributeur 301 convient, en particulier, à la distribution d'un produit moussant, tel qu'une mousse de rasage. Après la distribution du produit et son expansion dans la chambre 335, une mousse aérée s'accumule sur la surface externe de la grille 340, où elle peut être prélevée.FIG. 5 shows a dispenser 301 according to another embodiment of the invention. The corresponding parts of those of the embodiment of Figure 4 have reference numbers increased by 100. Their description does not will only be partially taken over. Compared to the dispenser of Figure 4, the dispenser 301, does not have a spray nozzle, but a part added in the form of a grid 340 provided with a flange 344. The grid comprises a multitude of openings 338. According to FIG. 5, the dispensing head 302 has a recess 342, for example of circular or rectangular shape, in which the edge of the grid 340 is embedded. A distribution channel 332, 334 connects the valve stem 308 with an expansion chamber 335 located straight behind the grid 340. The distributor 301 is particularly suitable for distribution a foaming product, such as a shaving foam. After the distribution of product and its expansion in room 335, aerated foam builds up on the external surface of the grid 340, where it can be taken.

Claims (10)

  1. Head (2 ... 302) for dispensing a liquid product (P) comprising
    catching means (14 ... 314) capable of catching on a reservoir (4 ... 304) containing the pressurized product, the reservoir being fitted with a dispensing valve (6) having an emerging actuating stem (8 ... 308) and which is capable of being opened by tilting the stem sideways,
    means (24 ... 324) of actuating and dispensing the said product, which means can be moved with respect to the catching means (14 ... 314), the actuating and dispensing means further comprising a dispensing orifice (38 ... 338) and an outlet channel (32 ... 332; 34 ... 334) connecting the said orifice to the valve stem (8 ... 308),
    connection means (25 ... 325) placed between the catching means (14 ... 314) and the actuating and dispensing means (24 ... 324),
    the actuating and dispensing means (24 ... 324) and the connection means (25 ... 325) forming a single part, characterized in that the single part is made from a thermoplastic elastomer, it being possible for the said valve (6) to be actuated by pressure applied to any point of an outer surface defined by the actuating and dispensing means and the connection means.
  2. Dispensing head according to Claim 1, characterized in that the catching means (114) form one and the same part with the connection means (125) and the actuating and dispensing means (124), the outer surface of the head not having any re-entrant part, the catching means comprising a cylindrical portion of a thickness greater than that of the connection means and capable of covering the said reservoir (104).
  3. Dispensing head according to Claim 1, characterized in that the catching means consist of a cylindrical ferrule (14, 214, 314), made from a rigid or semi-rigid thermoplastic, this ferrule bearing the connection means (25, 225, 325) and the actuating and dispensing means (24, 224, 324) on the one hand, and catching on the said reservoir (4, 204, 304) on the other hand, the outer surface of the head not having any re-entrant part.
  4. Dispensing head according to Claim 3, characterized in that it is made by two-shot injection moulding of the rigid thermoplastic in order to form the ferrule (14, 214, 314) and of the elastomer in order to form the actuating and dispensing means (24, 224, 324) together with the connection means (25, 225, 325).
  5. Dispensing head according to any one of the preceding claims, characterized in that the elastomer has a Shore A hardness of between 30 and 70.
  6. Dispensing head according to any one of the preceding claims, characterized in that the elastomer is chosen from silicones, natural or synthetic rubbers, nitrile rubbers, polyurethanes, polypropylene/styrene-butadiene-styrene block copolymer blends, polypropylene/styrene-ethylene-butylene-styrene block copolymer blends, and polypropylene/ethylene-propylenediene block copolymer blends.
  7. Dispensing head according to any one of the preceding claims, characterized in that the connection means (25 ... 325) and the actuating and dispensing means (24 ... 324) are dome-shaped.
  8. Dispensing head according to any one of the preceding claims, characterized in that the actuating and dispensing means (224, 324) further comprise an attached spray nozzle (238, 338).
  9. Dispenser (1 ... 301) for dispensing a liquid product (P) comprising:
    a reservoir (4 ... 304) containing the said product and a propellant gas, fitted with a dispensing valve (6) having an emerging actuating stem (8 ... 308) and the opening of which is controlled by tilting the stem sideways, and
    a dispensing head (2 ... 302) covering the said reservoir,
    characterized in that the said dispensing head is in accordance with any one of the preceding claims.
  10. Dispenser according to Claim 9, characterized in that the product (P) is a gel or a foaming liquid.
EP19980400461 1997-03-03 1998-02-26 Dispensing head and dispenser with such head Expired - Lifetime EP0863089B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9702503 1997-03-03
FR9702503A FR2760227B1 (en) 1997-03-03 1997-03-03 DISTRIBUTION HEAD AND DISPENSER EQUIPPED WITH SUCH A HEAD

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EP0863089A1 EP0863089A1 (en) 1998-09-09
EP0863089B1 true EP0863089B1 (en) 2002-12-18

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EP (1) EP0863089B1 (en)
DE (1) DE69810173D1 (en)
ES (1) ES2189103T3 (en)
FR (1) FR2760227B1 (en)

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GB201112009D0 (en) * 2011-07-13 2011-08-31 Britvic Soft Drinks Ltd Improvements to capped aerosol dispensers
FR3023733B1 (en) * 2014-07-15 2019-05-17 L'oreal ACTUATING AND DISPENSING HEAD OF A PRODUCT, DEVICE AND METHOD THEREOF

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203552A (en) * 1978-09-05 1980-05-20 Ethyl Corporation Pressurized atomizer
FR2716445B1 (en) * 1994-02-24 1996-04-12 Oreal Device for actuating a dispensing valve, and push button for such a device.

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DE69810173D1 (en) 2003-01-30
EP0863089A1 (en) 1998-09-09
FR2760227A1 (en) 1998-09-04
ES2189103T3 (en) 2003-07-01
FR2760227B1 (en) 1999-04-16

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