EP0850851B1 - Dispensing valve for pressurised fluids - Google Patents

Dispensing valve for pressurised fluids Download PDF

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Publication number
EP0850851B1
EP0850851B1 EP97402832A EP97402832A EP0850851B1 EP 0850851 B1 EP0850851 B1 EP 0850851B1 EP 97402832 A EP97402832 A EP 97402832A EP 97402832 A EP97402832 A EP 97402832A EP 0850851 B1 EP0850851 B1 EP 0850851B1
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EP
European Patent Office
Prior art keywords
valve
stem
valve according
dispensing
product
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Expired - Lifetime
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EP97402832A
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German (de)
French (fr)
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EP0850851A1 (en
Inventor
Pierre Lasserre
Jean-Marc Aumegeas
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LOreal SA
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LOreal SA
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    • 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 present invention relates to a valve for dispensing a product. intended to equip a dispenser comprising a container, capable of containing the product stored under pressure under the action of a propellant gas.
  • the invention is also relates to a distributor equipped with such a valve.
  • This distributor is intended, more particularly, for the packaging and distribution of a fluid product, such as a cosmetic, dermatological, household product, food or a workshop product, such as for example a hairspray, disinfectant spray, paint or cleaning product.
  • a valve comprising an operating rod disposed in a formed valve body by an elastomeric material.
  • the actuation of this valve is carried out by axial depression of the operating rod against means of elastic reminder. These means consist of a part of the body of valve, pressing against the rod.
  • the valve according to FR-A-2 161 350, is designed to be actuated by axial depression of the rod.
  • document US-A-3 627 179 describes a valve with tilting comprising a rod provided with a sealing ring and stressed by elastic return means.
  • the crown is in contact waterproof with an elastomeric annular seal.
  • a cup metal is provided to assemble the seal on a valve body.
  • the elastic return means are provided by a bottom of the valve body, thin so that, during lateral tilting of the rod, the crown elastically deforms this background.
  • This valve has the following drawbacks: during actuations valve repeatedly, the bottom may rupture and, which will cause, by as a result, the uncontrolled dispersion of the entire contents in the atmosphere. In moreover, the actuating force necessary for the distribution of the product is not not constant. Indeed, due to the variation of the internal pressure of the distributor, this actuating force is also variable.
  • US Patent 2,621,014 describes a valve that can be actuated only by lateral tilting of the operating rod.
  • the present invention aims to remedy the drawbacks of valves of the art anterior, and therefore relates to a valve of simple construction and easy to attach to any type of pressure vessel.
  • the price of returns from this valve is particularly advantageous.
  • the valve according to the invention has no metal parts.
  • the invention relates to a dispensing valve as defined in the claim 1.
  • the valve of the invention fitted to a dispenser is of the type which includes a operating rod arranged axially in a valve body.
  • the rod maneuver presents a passage for the product to be dispensed.
  • the valve comprises sealing means, capable of closing said passage, the rod maneuver which can be moved elastically by lateral tilting of the rod, in the valve body between a first position for closing the passage, where the rod is in the axial position, in which the passage is isolated of the product under pressure by the sealing means, and a second open position where the rod is inclined relative to the axis of the body valve, second position in which said passage is in communication with the product under pressure, to allow the distribution of the product.
  • the valve further comprises elastic non-metallic return means, biasing the rod in said first position.
  • the opening of the valve can also be caused, by axial depression, which is interesting for filling the container on a chain of conditioning.
  • the rod present at inside the outlet channel, an annular portion projecting from to the rest of the stem, and whose cross section is spherical, having a geometric center, the outlet channel having a portion, forming a recess of a shape complementary to that of the portion forming a projection, and capable of receiving, in a sealed manner, said portion forming projection, the articulation point of the rod substantially coinciding with the center geometric.
  • the annular portion forming projection has an external diameter between 4 mm and 7 mm, the rest of the rod having a diameter between 3 mm and 4 mm. and
  • said additional recess made in the outlet channel is not subject to any elastic stress, it has a radius of curvature 10% to 30% less than the radius of curvature of the protruding portion.
  • the rod present inside the channel of outlet, a portion forming a recess in the form of an annular groove in the shape of a torus portion, having a geometric center, the channel of outlet having a protruding portion, of shape complementary to that of the recess, and capable of receiving, in a sealed manner, said annular groove, the point of articulation of the rod coinciding with the geometric center of the torus.
  • said protruding portion when said protruding portion is subjected to no elastic stress, this has a smaller radius of curvature from 10% to 30% of the radius of curvature of the portion forming a recess. In this case, too, there is a tight tightening of the rod in the outlet channel of the valve body.
  • the means for selectively, put in communication, the end of the rod opening into the body of valve, with the internal chamber include a sealing ring, urged by elastic return means, in leaktight support on an annular seat formed by said body.
  • the distance along the axis of the rod between the point articulation and the annular seat is between 3 mm and 4 mm.
  • the valve body may present, between the point of articulation and the seat, a frustoconical portion, of which a smaller diameter is oriented towards the point of articulation.
  • rod and the sealing ring are made, preferably in one piece, and are made up of a rigid thermoplastic material, such as polypropylene.
  • the sealing ring which is advantageously integral with the rod, is housed in the valve chamber and stressed in compression by the elastic return means on the annular seat of the body, surrounding the rod.
  • the annular seat ensures, on the one hand, a perfect seal between the external wall of the rod and the valve chamber, and on the other hand, the crown isolates, in the position of valve closure, the valve chamber of the rod outlet channel.
  • the sealing ring is cylindrical.
  • this may have, between the seat and the inlet, a portion frustoconical with a smaller diameter oriented towards the inlet orifice. This frustoconical portion facilitates, in particular, the tilting of the rod maneuver.
  • the distribution channel of the rod opens into the body valve through a passage through the rod radially, at near the sealing ring.
  • the elastic return means consist of one or more elastomeric studs carried by a wall of the chamber and integral with it, this (or these) stud (s) being in support elastic against a part carrying the crown.
  • the (or the) stud (s) has (or have) come (s) of matter with the valve body.
  • the valve chamber has a bottom consisting of a portion frustoconical, this (or these) stud (s) is (or are) arranged (s) on this portion truncated.
  • the number of pads is 4 or 6.
  • pads are preferably small in relation to the chamber, for example of a height of the order of 0.5 mm to 3 mm.
  • the pad (s) is (or are) carried by a party carrying the crown and arranged on the face opposite to the sealing zone, bearing elastic against a wall of the chamber.
  • valve body Any material for the valve body can be provided elastomeric with a Shore A hardness between 30 and 70.
  • valve body is given both sufficient elasticity to ability to mount the operating rod and sufficient rigidity to ensure its shape stability.
  • return means are made in the form of studs carried by one of the walls delimiting the chamber internally, these pads can be deformed by crushing, during actuation of the valve.
  • the valve of the invention is intended to equip a dispenser with a product liquid. It is designed more particularly to be mounted on the neck of a container filled with product and pressurized with a propellant.
  • this dispenser is free of metal cup, usually used for fixing a valve on a container, and the valve is mounted directly on the neck of the container.
  • the neck is shaped so that it can cooperate with the latching means of the valve.
  • the assembly of the valve body on the container can thus be performed without the need for use of a conventional cup, because the elasticity of the material of the valve body provides, on the one hand the deformation necessary for mounting this on the container, and on the other hand, a sufficient seal to resist to the internal pressure of the container.
  • the valve according to the invention is of simple construction and does not involves only a reduced number of constituents. Indeed, it does not include an easy-to-assemble operating rod and valve body. In addition, this valve does not have any metal component, likely to come into contact with the product to be distributed, risking, if necessary degrade this product.
  • the valve body further comprises external latching means capable of cooperating with an orifice of a container of liquid product on which is mounted said valve for the distribution of said product.
  • these latching means consist of an annular groove made in the outer wall of the valve body.
  • the container which can be used for mounting this valve can be chosen from aluminum, tin or plastic containers. To this end, the container has an open end (or orifice) capable of cooperating with the latching means of the valve body.
  • valve of the invention can be mounted on such a container by a simple digging operation, and does not further require parts intermediates or gaskets.
  • receptacles capable of being assembled with the valve of the invention can be chosen from simple containers and therefore economically advantageous.
  • the orifice of the container in which the valve body must be mounted may have, in particular, relatively wide tolerances and mounting the valve on the container does not require shaping particular and therefore expensive.
  • Valve 1 compliant. to the invention is intended for equip a dispenser containing a liquid product, such as a lacquer capillary for example, pressurized by the action of a propellant gas.
  • the valve 1 comprises a body 2 having the general shape of a truncated cone of axis of revolution A, and a rod maneuver 3, generally cylindrical in shape, provided with an X axis. valve rest position, axes A and X coincide.
  • Rod 3 is made of a rigid thermoplastic material.
  • the valve body 2 is made of an elastically material deformable, for example a nitrile rubber elastomer, the Shore A hardness is in the range between 30 and 70.
  • the body has a large base 2a and a small base 2b, connected by a frustoconical part 2c and a cylindrical part 2d.
  • an internal chamber 4 of circular section delimited by peripheral walls 4a, 4b, 4c, 4d.
  • the wall 4a is cylindrical in shape and is connected to a frustoconical portion 4b, the top of which opens towards the outside of the valve chamber by a axial intake channel 5.
  • the axial intake channel 5, intended for the admission of the product to be dispensed, is practiced in the center of the small base 2b and leads into room 4.
  • This intake channel 5 is connected to a dip tube 6 whose free end (not shown) constantly immersed in the product.
  • This product is packaged in a container fitted with valve 1 (see figure 4).
  • the cylindrical wall 4a On the side opposite to the intake channel 5, the cylindrical wall 4a is connected to an annular sealing zone 4c situated in a plane perpendicular to the axis A.
  • the annular zone 4c extends upwards by a second portion frustoconical 4d, facilitating the tilting of the rod 3.
  • the top of the portion frustoconical 4d opens into a recess 8 of substantially shaped spherical.
  • This recess 8 is part of an outlet channel 10 which is arranged in the extension of the intake channel 5, the channel 10 leading, from the internal chamber 4, outwards.
  • the outlet channel 10 is crossed by the rod 3, the external wall of the rod 3 being in perfect sealing contact against the wall delimiting the outlet channel 10.
  • the rod 3 has an annular portion 14 projecting from to the rest of the stem, and whose axial cross section is of shape spherical, complementary to the shape of the recess 8.
  • a free end 11 of outlet channel 10 has a tapered bore, while that the other end 13 of the outlet channel forms the frustoconical portion 4c supra.
  • the rod 3 comprises a central distribution channel 12 passing through the rod from the emerging end 3b to a height situated substantially at the height of the annular zone 4c. At this height, the central channel 12 ends in a radial passage 15 crossing the rod radially and ending in the upper part of the chamber 4.
  • the end part 3a of the rod is shaped as a truncated cone 3c comprising a large 16 and a small 17 bases connected by a frustoconical part 18.
  • the large base 16 carries a peripheral ring 19 in sealed elastic support against the annular zone 4c, which then constitutes a seat.
  • the crown has a small thickness radially d 1 (approximately 0.1 to 0.5 mm, see FIG. 2).
  • the elastic support of the crown 19 against the seat 4c is provided by several studs 20, distributed regularly on the frustoconical wall 4b of the chamber 4 and in elastic support against the frustoconical part 18 of the rod 3.
  • the free edge of the crown 19 fits some 10 th of mm into the seat 4c and creates a perfect seal between the valve chamber and the distribution channel.
  • the pads 20 can be made on the trunk of cone 3c of the rod and molded integrally with the latter. These studs are in elastic support against the frustoconical wall 4b. So when actuation of the valve by tilting the rod 3, the studs return part in the wall 4b.
  • the rod 3 (including the truncated cone 3c) is made of a material relatively rigid thermoplastic such as polypropylene. Its diameter is from about 3 mm to about 4 mm, its outer annular portion projecting 14 having a diameter between 4 mm and 7 mm.
  • the recess complementary 8 when subjected under no elastic stress, has an internal diameter approximately 10% to 30% smaller than the diameter external of the protruding portion 14.
  • the center P of the protruding portion 14 is at an axial height along the axis A, located 3 mm to 4 mm from seat 4c.
  • a transition zone of the valve body located between the cylindrical part 2d and the frustoconical part 2c of the body 2, comprises latching means 7 in the form of an annular fixing groove whose role will be explained during the description of Figure 3.
  • the operation of the valve 1 is shown diagrammatically in FIG. 2.
  • the rod 3 is pivoted around the articulation point P, in the direction of the arrow B.
  • the axis X of the rod is inclined relative to the axis A of the valve body, the angle ⁇ formed between the two axes being of the order of 2 ° to 10 °.
  • a part 19a of the crown 19 moves away from the seat 4c, creating a spacing d 2 .
  • the stud (s) 20 which is (are) on the frustoconical wall 4b, on the side opposite the spacing d 2 , is (are) crushed (s) by the frustoconical part 3c of the stem.
  • four studs 20 of elongated shape were made about 1 mm high, about 1.5 mm wide and about 1.5 mm long.
  • the product is then conveyed via the dip tube 6 and the inlet orifice 5 into the chamber 4, to arrive in the distribution channel 12 via the spacing d 2 and the radial passage 15.
  • the dispensing of the product stops, because the crown 19 returns in sealed contact against the seat 4c.
  • the latter remains in sealed annular contact with the channel, at the level of all or part of its spherical portion 14.
  • FIG. 3 there is shown a second embodiment of a valve according to the invention as a whole bearing the reference 101.
  • This valve shown in the rest position, differs from the valve in the figures 1 and 2 by the fact that the shape of the profile of the annular portion of the rod, as well that the shape of the complementary profile of the outlet channel are reversed.
  • the parts of the valve 101 identical or playing a role similar to the parts of the valve of FIGS. 1 and 2 have the same references increased by 100. Their description will not be repeated briefly.
  • valve stem 103 crosses the outlet channel 110 which connects the chamber valve 104 with the outside.
  • the rod has, inside the outlet channel, substantially at mid-height, a portion 114 forming a recess in the form an annular groove in the shape of a torus portion, having a center geometric P, the outlet channel 110 having a protruding portion 108, of a shape complementary to that of the recess 114, and suitable for receiving sealingly the annular groove, the articulation point of the rod 103 coinciding with the geometric center P of the torus.
  • valve 103 The operation of the valve 103 is analogous to the operation of the valve 1.
  • FIG 4 we see the valve according to Figures 1 and 2, mounted on a container 202 without valve holder cup.
  • This container is a aluminum, in particular monobloc, or a rigid plastic material such as polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the container 202 has a neck 204 whose open end is bent at right angles forming an annular plate 206, provided with a circular opening 208.
  • the orifice 208 is fixed the valve body 2 1, by depressing the latter, so that the annular plate 206 comes to be housed in the annular groove 7 of the valve body 2. Due to the elasticity of the body 2, the depression of this the latter in the orifice 208 can be carried out by a simple operation. Of more, when the orifice 208 presents variations in diameter, the tolerances relatively large are compensated by the elasticity of the valve body, without risk of leaking propellant. This assembly is particularly economically advantageous.

Description

La présente invention se rapporte à une valve de distribution d'un produit destinée à équiper un distributeur comprenant un récipient, apte à contenir le produit stocké sous pression sous l'action d'un gaz propulseur. L'invention se rapporte également à un distributeur équipé d'une telle valve. Ce distributeur est destiné, plus particulièrement, au conditionnement et à la distribution d'un produit fluide, tel qu'un produit cosmétique, dermatologique, ménager, alimentaire ou un produit d'atelier, tel que par exemple une laque capillaire, un spray désinfectant, une peinture ou un produit de nettoyage.The present invention relates to a valve for dispensing a product. intended to equip a dispenser comprising a container, capable of containing the product stored under pressure under the action of a propellant gas. The invention is also relates to a distributor equipped with such a valve. This distributor is intended, more particularly, for the packaging and distribution of a fluid product, such as a cosmetic, dermatological, household product, food or a workshop product, such as for example a hairspray, disinfectant spray, paint or cleaning product.

On connaít, par exemple, par le document FR-A-2 161 350, une valve. comprenant une tige de manoeuvre disposée dans un corps de valve formé par un matériau élastomérique. L'actionnement de cette valve est effectué par enfoncement axial de la tige de manoeuvre à l'encontre de moyens de rappel élastique. Ces moyens sont constitués par une partie du corps de valve, en appui contre la tige. La valve, selon FR-A-2 161 350, est conçue pour être actionnée par enfoncement axial de la tige.We know, for example, from document FR-A-2 161 350, a valve. comprising an operating rod disposed in a formed valve body by an elastomeric material. The actuation of this valve is carried out by axial depression of the operating rod against means of elastic reminder. These means consist of a part of the body of valve, pressing against the rod. The valve, according to FR-A-2 161 350, is designed to be actuated by axial depression of the rod.

On connaít, en outré, une valve actionnable par basculement latéral de la tige de manoeuvre, Ainsi, le document US-A-3 627 179 décrit une valve à basculement comprenant une tige munie d'une couronne d'étanchéité et sollicitée par des moyens de rappel élastiques. La couronne est en contact étanche avec un joint annulaire rapporté en élastomère. Une coupelle métallique est prévue pour assembler le joint sur un corps de valve. Les moyens de rappel élastique sont assurés par un fond du corps de valve, de faible épaisseur de sorte que, lors du basculement latéral de la tige, la couronne déforme élastiquement ce fond.We also know, in addition, a valve actuable by lateral tilting of the operating rod, Thus, document US-A-3 627 179 describes a valve with tilting comprising a rod provided with a sealing ring and stressed by elastic return means. The crown is in contact waterproof with an elastomeric annular seal. A cup metal is provided to assemble the seal on a valve body. The elastic return means are provided by a bottom of the valve body, thin so that, during lateral tilting of the rod, the crown elastically deforms this background.

Cette valve présente les inconvénients suivants : lors d'actionnements répétés de la valve, le fond risque de se rompre et, ce qui provoquera, par la suite, la dispersion incontrôlée du contenu entier dans l'atmosphère. En outre, la force d'actionnement nécessaire pour la distribution du produit n'est pas constante. En effet, dû à la variation de la pression interne du distributeur, cette force d'actionnement est variable également.This valve has the following drawbacks: during actuations valve repeatedly, the bottom may rupture and, which will cause, by as a result, the uncontrolled dispersion of the entire contents in the atmosphere. In moreover, the actuating force necessary for the distribution of the product is not not constant. Indeed, due to the variation of the internal pressure of the distributor, this actuating force is also variable.

Le brevet US 2,621,014 décrit une valve actionnable uniquement par basculement latéral de la tige de manoeuvre.US Patent 2,621,014 describes a valve that can be actuated only by lateral tilting of the operating rod.

La présente invention vise à remédier aux inconvénients des valves de l'art antérieur, et a, en conséquence, pour objet une valve de construction simple et facile à fixer sur tout type de récipient sous pression. De plus, le prix de revient de cette valve est particulièrement avantageux. Avantageusement, la valve selon l'invention ne comporte aucune pièce métallique.The present invention aims to remedy the drawbacks of valves of the art anterior, and therefore relates to a valve of simple construction and easy to attach to any type of pressure vessel. In addition, the price of returns from this valve is particularly advantageous. Advantageously, the valve according to the invention has no metal parts.

Ainsi, l'invention, se rapporte à une valve de distribution telle que définie dans la revendication 1.Thus, the invention relates to a dispensing valve as defined in the claim 1.

La valve de l'invention équipant on distributeur est du type qui comprend une tige de manoeuvre disposée axialement dans un corps de valve. La tige de manoeuvre présente un passage pour le produit à distribuer. La valve comprend des moyens d'étanchéité, aptes à fermer ledit passage, la tige de manoeuvre pouvant être déplacée élastiquement par basculement latéral de la tige, dans le corps de valve entre une première position d'obturation du passage, où la tige est en position axiale, dans laquelle le passage est isolé du produit sous pression par les moyens d'étanchéité, et une deuxième position d'ouverture où la tige est inclinée par rapport à l'axe du corps de valve, seconde position dans laquelle ledit passage est en communication avec le produit sous pression, pour permettre la distribution du produit. La valve comprend en outre des'moyens élastiques de rappel non métalliques, sollicitant la tige dans ladite première position. Par ailleurs, l'ouverture de la valve peut être provoquée également, par enfoncement axial, ce qui est intéressant pour le remplissage du récipient sur une chaíne de conditionnement.The valve of the invention fitted to a dispenser is of the type which includes a operating rod arranged axially in a valve body. The rod maneuver presents a passage for the product to be dispensed. The valve comprises sealing means, capable of closing said passage, the rod maneuver which can be moved elastically by lateral tilting of the rod, in the valve body between a first position for closing the passage, where the rod is in the axial position, in which the passage is isolated of the product under pressure by the sealing means, and a second open position where the rod is inclined relative to the axis of the body valve, second position in which said passage is in communication with the product under pressure, to allow the distribution of the product. The valve further comprises elastic non-metallic return means, biasing the rod in said first position. Furthermore, the opening of the valve can also be caused, by axial depression, which is interesting for filling the container on a chain of conditioning.

En particulier, selon un premier mode de réalisation, la tige présente à l'intérieur du canal de sortie, une portion annulaire formant saillie par rapport au reste de la tige, et dont une section transversale est de forme sphérique, présentant un centre géométrique, le canal de sortie ayant une portion, formant un renfoncement de forme complémentaire à celle de la portion formant saillie, et apte à recevoir, de manière étanche, ladite portion formant saillie, le point d'articulation de la tige coïncidant sensiblement avec le centre géométrique.In particular, according to a first embodiment, the rod present at inside the outlet channel, an annular portion projecting from to the rest of the stem, and whose cross section is spherical, having a geometric center, the outlet channel having a portion, forming a recess of a shape complementary to that of the portion forming a projection, and capable of receiving, in a sealed manner, said portion forming projection, the articulation point of the rod substantially coinciding with the center geometric.

Selon une forme avantageuse de réalisation, la portion annulaire formant saillie présente un diamètre externe compris entre 4 mm et 7 mm, le reste de la tige ayant un diamètre compris entre 3 mm et 4 mm. et Lorsque ledit renfoncement complémentaire pratiqué dans le canal de sortie est soumis à aucune contrainte élastique, celui-ci présente un rayon de courbure inférieur de 10% à 30% au rayon de courbure de la portion formant saillie. Ainsi, on obtient un serrage étanche de la tige dans le corps de valve, et ceci quelle que soit la position de basculement de la tige. According to an advantageous embodiment, the annular portion forming projection has an external diameter between 4 mm and 7 mm, the rest of the rod having a diameter between 3 mm and 4 mm. and When said additional recess made in the outlet channel is not subject to any elastic stress, it has a radius of curvature 10% to 30% less than the radius of curvature of the protruding portion. Thus, a tight tightening of the rod is obtained in the valve body, regardless of the tilting position of the stem.

Selon un second mode de réalisation, la tige présente à l'intérieur du canal de sortie, une portion formant un évidement sous forme d'une gorge annulaire en forme de portion de tore, présentant un centre géométrique, le canal de sortie ayant une portion formant saillie, de forme complémentaire à celle de l'évidement, et apte à recevoir, de manière étanche, ladite gorge annulaire, le point d'articulation de la tige coïncidant avec le centre géométrique du tore. Avantageusement, lorsque ladite portion formant saillie est soumis à aucune contrainte élastique, celle-ci présente un rayon de courbure inférieur de 10% à 30% au rayon de courbure de la portion formant un évidement. Dans ce cas, également, il se produit un serrage étanche de la tige dans le canal de sorte du corps de valve.According to a second embodiment, the rod present inside the channel of outlet, a portion forming a recess in the form of an annular groove in the shape of a torus portion, having a geometric center, the channel of outlet having a protruding portion, of shape complementary to that of the recess, and capable of receiving, in a sealed manner, said annular groove, the point of articulation of the rod coinciding with the geometric center of the torus. Advantageously, when said protruding portion is subjected to no elastic stress, this has a smaller radius of curvature from 10% to 30% of the radius of curvature of the portion forming a recess. In this case, too, there is a tight tightening of the rod in the outlet channel of the valve body.

Selon un aspect intéressant de l'invention, les moyens pour sélectivement, mettre en communication, l'extrémité de la tige débouchant dans le corps de valve, avec la chambre interne, comprennent une couronne d'étanchéité, sollicitée par des moyens de rappel élastiques, en appui de façon étanche sur un siège annulaire formé par ledit corps.According to an interesting aspect of the invention, the means for selectively, put in communication, the end of the rod opening into the body of valve, with the internal chamber, include a sealing ring, urged by elastic return means, in leaktight support on an annular seat formed by said body.

Pour faciliter le basculement latéral de la tige dans le canal de sortie du corps de valve, avantageusement, la distance selon l'axe de la tige entre le point d'articulation et le siège annulaire est comprise entre 3 mm et 4 mm. Pour les mêmes raisons, le corps de valve peut présenter, entre le point d'articulation et le siège, une portion tronconique, dont un plus petit diamètre est orienté vers le point d'articulation.To facilitate lateral tilting of the rod in the body outlet channel of valve, advantageously, the distance along the axis of the rod between the point articulation and the annular seat is between 3 mm and 4 mm. For the same reasons, the valve body may present, between the point of articulation and the seat, a frustoconical portion, of which a smaller diameter is oriented towards the point of articulation.

Quant à la réalisation de la tige et de la couronne d'étanchéité, elles sont réalisées, de préférence en une seule pièce, et sont constituées en un matériau thermoplastique rigide, tel que du polypropylène.As for the realization of the rod and the sealing ring, they are made, preferably in one piece, and are made up of a rigid thermoplastic material, such as polypropylene.

En particulier, la couronne d'étanchéité qui est avantageusement solidaire de la tige, est logée dans la chambre de valve et sollicitée en compression par les moyens élastiques de rappel sur le siège annulaire du corps, entourant la tige. Ainsi, lorsque la tige de manoeuvre est au repos, le siège annulaire assure, d'une part une étanchéité parfaite entre la paroi externe de la tige et la chambre de valve, et d'autre part, la couronne isole, en position de fermeture de la valve, la chambre de valve du canal de sortie de la tige. Avantageusement, la couronne d'étanchéité est cylindrique. Lorsque la tige de manoeuvre est actionnée à l'encontre des moyens de rappel, par basculement latéral, la couronne s'écarte partiellement du siège annulaire, et une communication est établie entre la chambre de valve et l'extérieur, permettant la distribution du produit sous pression.In particular, the sealing ring which is advantageously integral with the rod, is housed in the valve chamber and stressed in compression by the elastic return means on the annular seat of the body, surrounding the rod. Thus, when the operating rod is at rest, the annular seat ensures, on the one hand, a perfect seal between the external wall of the rod and the valve chamber, and on the other hand, the crown isolates, in the position of valve closure, the valve chamber of the rod outlet channel. Advantageously, the sealing ring is cylindrical. When the rod maneuver is actuated against the return means, by lateral tilting, the crown deviates partially from the annular seat, and communication is established between the valve chamber and the outside, allowing the distribution of the product under pressure.

Pour assurer la mobilité de la couronne d'étanchéité dans la chambre interne, celle-ci peut présenter, entre le siège et l'orifice d'entrée, une portion tronconique dont un plus petit diamètre est orienté vers l'orifice d'entrée. Cette portion tronconique facilite, notamment, le basculement de la tige de manoeuvre. To ensure the mobility of the sealing ring in the internal chamber, this may have, between the seat and the inlet, a portion frustoconical with a smaller diameter oriented towards the inlet orifice. This frustoconical portion facilitates, in particular, the tilting of the rod maneuver.

Avantageusement, le canal de distribution de la tige débouche dans le corps de valve par l'intermédiaire d'un passage traversant la tige radialement, à proximité de la couronne d'étanchéité.Advantageously, the distribution channel of the rod opens into the body valve through a passage through the rod radially, at near the sealing ring.

Pour la réalisation des moyens de rappel élastiques, on a prévu deux possibilités. Selon une première possibilité, les moyens de rappel élastique sont constitués par un ou plusieurs plots élastomériques portés par une paroi de la chambre et solidaire de celle-ci, ce (ou ces) plot(s) étant en appui élastique contre une partie portant la couronne. Avantageusement, le (ou les) plot(s) est (ou sont) venu(s) de matière avec le corps de valve. Notamment, lorsque la chambre de valve comporte un fond constitué d'une portion tronconique, ce (ou ces) plot(s) est (ou sont) disposé(s) sur cette portion tronconique. Avantageusement, le nombre de plots est de 4 ou 6. Ces plots sont, de préférence, de faible dimension par rapport à la chambre, par exemple d'une hauteur de l'ordre de 0,5 mm à 3 mm. Selon une seconde possibilité, le (ou les) plot(s) est (ou sont) porté(s) par une partie portant la couronne et disposé(s) sur la face opposée à la zone d'étanchéité, en appui élastique contre une paroi de la chambre.For the production of elastic return means, two arrangements have been made. opportunities. According to a first possibility, the elastic return means consist of one or more elastomeric studs carried by a wall of the chamber and integral with it, this (or these) stud (s) being in support elastic against a part carrying the crown. Advantageously, the (or the) stud (s) has (or have) come (s) of matter with the valve body. Especially, when the valve chamber has a bottom consisting of a portion frustoconical, this (or these) stud (s) is (or are) arranged (s) on this portion truncated. Advantageously, the number of pads is 4 or 6. These pads are preferably small in relation to the chamber, for example of a height of the order of 0.5 mm to 3 mm. According to a second possibility, the pad (s) is (or are) carried by a party carrying the crown and arranged on the face opposite to the sealing zone, bearing elastic against a wall of the chamber.

Pour la réalisation du corps de valve, on peut prévoir tout matériau élastomérique présentant une dureté Shore A comprise entre 30 et 70.Any material for the valve body can be provided elastomeric with a Shore A hardness between 30 and 70.

Ainsi, on confère au corps de valve à la fois suffisamment d'élasticité pour pouvoir y monter la tige de manoeuvre et suffisamment de rigidité pour assurer sa stabilité de forme. En outre, lorsque les moyens de rappel sont réalisés sous forme de plots portés par une des parois délimitant la chambre interne, ces plots peuvent être déformés par écrasement, lors de l'actionnement de la valve.Thus, the valve body is given both sufficient elasticity to ability to mount the operating rod and sufficient rigidity to ensure its shape stability. In addition, when the return means are made in the form of studs carried by one of the walls delimiting the chamber internally, these pads can be deformed by crushing, during actuation of the valve.

La valve de l'invention est destinée à équiper un distributeur d'un produit liquide. Elle est conçue plus particulièrement pour être montée sur le col d'un récipient rempli du produit et mis sous pression à l'aide d'un gaz propulseur.The valve of the invention is intended to equip a dispenser with a product liquid. It is designed more particularly to be mounted on the neck of a container filled with product and pressurized with a propellant.

Selon un mode de réalisation particulier de l'invention, ce distributeur est exempt de coupelle métallique, habituellement utilisée pour la fixation d'une valve sur un récipient, et la valve est montée directement sur le col du récipient. Dans ce cas, le col est conformé de sorte qu'il puisse coopérer avec les moyens d'encliquetage de la valve.According to a particular embodiment of the invention, this dispenser is free of metal cup, usually used for fixing a valve on a container, and the valve is mounted directly on the neck of the container. In this case, the neck is shaped so that it can cooperate with the latching means of the valve.

Grâce aux moyens d'encliquetage mentionnés ci-dessus l'assemblage du corps de valve sur le récipient peut ainsi être effectué sans avoir besoin de recours à une coupelle classique, car l'élasticité du matériau constitutif du corps de valve assure, d'une part la déformation nécessaire au montage de celui-ci sur le récipient, et d'autre part, une étanchéité suffisante pour résister à la pression interne du récipient. Thanks to the latching means mentioned above, the assembly of the valve body on the container can thus be performed without the need for use of a conventional cup, because the elasticity of the material of the valve body provides, on the one hand the deformation necessary for mounting this on the container, and on the other hand, a sufficient seal to resist to the internal pressure of the container.

Ainsi, la valve conforme à l'invention est de construction simple et ne comporte qu'un nombre de constituants réduit. En effet, elle ne comporte qu'une tige de manoeuvre et un corps de valve qui sont faciles à assembler. En outre, cette valve ne comporte aucune pièce constitutive en métal, susceptible de venir au contact avec le produit à distribuer, risquant, le cas échéant, de dégrader ce produit.Thus, the valve according to the invention is of simple construction and does not involves only a reduced number of constituents. Indeed, it does not include an easy-to-assemble operating rod and valve body. In addition, this valve does not have any metal component, likely to come into contact with the product to be distributed, risking, if necessary degrade this product.

Selon un mode de réalisation intéressant de l'invention, le corps de valve comporte, en outre, des moyens d'encliquetage extérieurs aptes à coopérer avec un orifice d'un récipient de produit liquide sur lequel est montée ladite valve en vue de la distribution dudit produit. De façon avantageuse, ces moyens d'encliquetage sont constitués par une gorge annulaire pratiquée dans la paroi externe du corps de valve.According to an interesting embodiment of the invention, the valve body further comprises external latching means capable of cooperating with an orifice of a container of liquid product on which is mounted said valve for the distribution of said product. Advantageously, these latching means consist of an annular groove made in the outer wall of the valve body.

Le récipient utilisable pour le montage de cette valve peut être choisi parmi les récipients en aluminium, en fer blanc ou en matière plastique. A cet effet, le récipient comporte une extrémité ouverte (ou orifice) apte à coopérer avec les moyens d'encliquetage du corps de valve.The container which can be used for mounting this valve can be chosen from aluminum, tin or plastic containers. To this end, the container has an open end (or orifice) capable of cooperating with the latching means of the valve body.

Ainsi, la valve de l'invention peut être montée sur un tel récipient par une simple opération d'enfoncement, et ne nécessite pas, en outre, de pièces intermédiaires ou de joints d'étanchéité. Un autre avantage réside dans le fait que les récipients susceptibles d'être assemblés avec la valve de l'invention peuvent être choisis parmi les récipients simples et donc économiquement avantageux. A cet effet, l'orifice du récipient dans lequel le corps de valve doit être monté, peut présenter, notamment, des tolérances relativement larges et le montage de la valve sur le récipient ne nécessite pas de façonnage particulier et, en conséquence coûteux.Thus, the valve of the invention can be mounted on such a container by a simple digging operation, and does not further require parts intermediates or gaskets. Another advantage is that that the receptacles capable of being assembled with the valve of the invention can be chosen from simple containers and therefore economically advantageous. For this purpose, the orifice of the container in which the valve body must be mounted, may have, in particular, relatively wide tolerances and mounting the valve on the container does not require shaping particular and therefore expensive.

Pour mieux faire comprendre la présente invention, on va décrire maintenant, à titre d'exemples purement illustratifs et nullement limitatifs, plusieurs modes de réalisation de l'invention, comme représenté sur les dessins annexés. Sur ces dessins :

  • la figure 1 représente une coupe axiale d'un premier mode de réalisation d'une valve conforme à l'invention, en position fermée ;
  • la figure 2 représente une coupe axiale de la valve de la figure 1, en position ouverte ;
  • la figure 3 représente une coupe axiale d'un second mode de réalisation de la valve conforme à l'invention ;
  • la figure 4 représente une coupe axiale partielle d'un récipient équipé de la valve de la figure 1, et exempt d'une coupelle porte-valve.
To better understand the present invention, we will now describe, by way of purely illustrative and in no way limitative, several embodiments of the invention, as shown in the accompanying drawings. In these drawings:
  • Figure 1 shows an axial section of a first embodiment of a valve according to the invention, in the closed position;
  • 2 shows an axial section of the valve of Figure 1, in the open position;
  • Figure 3 shows an axial section of a second embodiment of the valve according to the invention;
  • 4 shows a partial axial section of a container equipped with the valve of Figure 1, and free of a valve holder cup.

La valve 1 conforme. à l'invention, représentée sur les figures 1 et 2, respectivement en position de fermeture et d'ouverture, est destinée à équiper un distributeur contenant un produit liquide, telle qu'une laque capillaire par exemple, mis sous pression par l'action d'un gaz propulseur. Comme visible, notamment à la figure 1, la valve 1 comporte un corps 2 ayant une forme générale en tronc de cône d'axe de révolution A, et une tige de manoeuvre 3, de forme généralement cylindrique, pourvue d'un axe X. En position de repos de la valve, les axes A et X sont confondus. La tige 3 est réalisée en un matériau thermoplastique rigide.Valve 1 compliant. to the invention, shown in FIGS. 1 and 2, respectively in the closed and open position, is intended for equip a dispenser containing a liquid product, such as a lacquer capillary for example, pressurized by the action of a propellant gas. As can be seen, in particular in FIG. 1, the valve 1 comprises a body 2 having the general shape of a truncated cone of axis of revolution A, and a rod maneuver 3, generally cylindrical in shape, provided with an X axis. valve rest position, axes A and X coincide. Rod 3 is made of a rigid thermoplastic material.

Selon l'invention, le corps de valve 2 est réalisé en un matériau élastiquement déformable, par exemple un élastomère de caoutchouc de nitrile, dont la dureté Shore A est comprise dans la gamme comprise entre 30 et 70. Le corps comporte une grande base 2a et une petite base 2b, reliées par une partie tronconique 2c et une partie cylindrique 2d.According to the invention, the valve body 2 is made of an elastically material deformable, for example a nitrile rubber elastomer, the Shore A hardness is in the range between 30 and 70. The body has a large base 2a and a small base 2b, connected by a frustoconical part 2c and a cylindrical part 2d.

A l'intérieur du corps de valve 2 est ménagée une chambre interne 4 de section circulaire, délimitée par des parois périphériques 4a, 4b, 4c, 4d. La paroi 4a est de forme cylindrique et est raccordée à une portion tronconique 4b dont le sommet s'ouvre vers l'extérieur de la chambre de valve par un canal axial d'admission 5.Inside the valve body 2 is formed an internal chamber 4 of circular section, delimited by peripheral walls 4a, 4b, 4c, 4d. The wall 4a is cylindrical in shape and is connected to a frustoconical portion 4b, the top of which opens towards the outside of the valve chamber by a axial intake channel 5.

Le canal axial d'admission 5, destiné à l'admission du produit à distribuer, est pratiqué au centre de la petite base 2b et débouche dans la chambre 4. Ce canal d'admission 5 est relié à un tube plongeur 6 dont l'extrémité libre (non représentée) plonge en permanence dans le produit. Ce produit est conditionné dans un récipient équipé de la valve 1 (voir figure 4).The axial intake channel 5, intended for the admission of the product to be dispensed, is practiced in the center of the small base 2b and leads into room 4. This intake channel 5 is connected to a dip tube 6 whose free end (not shown) constantly immersed in the product. This product is packaged in a container fitted with valve 1 (see figure 4).

Du côté opposé au canal d'admission 5, la paroi cylindrique 4a est raccordée à une zone annulaire d'étanchéité 4c située dans un plan perpendiculaire à l'axe A. La zone annulaire 4c se prolonge vers le haut par une seconde portion tronconique 4d, facilitant le basculement de la tige 3. Le sommet de la portion tronconique 4d débouche dans un renfoncement 8 de forme sensiblement sphérique. Ce renfoncement 8 fait partie d'un canal de sortie 10 qui est disposé dans le prolongement du canal d'admission 5, le canal 10 conduisant, depuis la chambre interne 4, vers l'extérieur. Le canal de sortie 10 est traversé par la tige 3, la paroi externe de la tige 3 étant en contact d'étanchéité parfaite contre la paroi délimitant le canal de sortie 10. Sensiblement à mi-hauteur du canal de sortie 10, la tige 3 présente une portion annulaire 14 formant saillie par rapport au reste de la tige, et dont la section transversale, axiale est de forme sphérique, de forme complémentaire à la forme du renfoncement 8. Une extrémité libre 11 du canal de sortie 10 comporte un alésage conique, tandis que l'autre extrémité 13 du canal de sortie forme la portion tronconique 4c précitée.On the side opposite to the intake channel 5, the cylindrical wall 4a is connected to an annular sealing zone 4c situated in a plane perpendicular to the axis A. The annular zone 4c extends upwards by a second portion frustoconical 4d, facilitating the tilting of the rod 3. The top of the portion frustoconical 4d opens into a recess 8 of substantially shaped spherical. This recess 8 is part of an outlet channel 10 which is arranged in the extension of the intake channel 5, the channel 10 leading, from the internal chamber 4, outwards. The outlet channel 10 is crossed by the rod 3, the external wall of the rod 3 being in perfect sealing contact against the wall delimiting the outlet channel 10. Substantially halfway up the outlet 10, the rod 3 has an annular portion 14 projecting from to the rest of the stem, and whose axial cross section is of shape spherical, complementary to the shape of the recess 8. A free end 11 of outlet channel 10 has a tapered bore, while that the other end 13 of the outlet channel forms the frustoconical portion 4c supra.

La tige 3 comporte un canal central de distribution 12 traversant la tige depuis l'extrémité émergente 3b jusqu'à une hauteur située sensiblement à la hauteur de la zone annulaire 4c. A cette hauteur, le canal central 12 se termine par un passage radial 15 traversant la tige radialement et aboutissant dans la partie supérieure de la chambre 4. La partie terminale 3a de la tige est conformée en tronc de cône 3c comportant une grande 16 et une petite 17 bases reliées par une partie tronconique 18. La grande base 16 porte une couronne périphérique 19 en appui élastique étanche contre la zone annulaire 4c, qui constitue alors un siège. En pratique, la couronne présente radialement une faible épaisseur d 1 (environ 0,1 à 0,5 mm, voir figure 2). L'appui élastique de la couronne 19 contre le siège 4c est assuré par plusieurs plots 20, repartis régulièrement sur la paroi tronconique 4b de la chambre 4 et en appui élastique contre la partie tronconique 18 de la tige 3. Ainsi, le bord libre de la couronne 19 rentre de quelques 10èmes de mm dans le siège 4c et crée une étanchéité parfaite entre la chambre de valve et le canal de distribution.The rod 3 comprises a central distribution channel 12 passing through the rod from the emerging end 3b to a height situated substantially at the height of the annular zone 4c. At this height, the central channel 12 ends in a radial passage 15 crossing the rod radially and ending in the upper part of the chamber 4. The end part 3a of the rod is shaped as a truncated cone 3c comprising a large 16 and a small 17 bases connected by a frustoconical part 18. The large base 16 carries a peripheral ring 19 in sealed elastic support against the annular zone 4c, which then constitutes a seat. In practice, the crown has a small thickness radially d 1 (approximately 0.1 to 0.5 mm, see FIG. 2). The elastic support of the crown 19 against the seat 4c is provided by several studs 20, distributed regularly on the frustoconical wall 4b of the chamber 4 and in elastic support against the frustoconical part 18 of the rod 3. Thus, the free edge of the crown 19 fits some 10 th of mm into the seat 4c and creates a perfect seal between the valve chamber and the distribution channel.

Selon un autre mode de réalisation, les plots 20 peuvent être réalisés sur le tronc de cône 3c de la tige et moulés intégralement avec cette dernière. Ces plots sont en appui élastique contre la paroi tronconique 4b. Ainsi, lors de l'actionnement de la valve par basculement de la tige 3, les plots rentrent en partie dans la paroi 4b.According to another embodiment, the pads 20 can be made on the trunk of cone 3c of the rod and molded integrally with the latter. These studs are in elastic support against the frustoconical wall 4b. So when actuation of the valve by tilting the rod 3, the studs return part in the wall 4b.

La tige 3 (y compris le tronc de cône 3c) est réalisée en un matériau thermoplastique relativement rigide comme le polypropylène. Son diamètre est d'environ 3 mm à environ 4 mm, sa portion annulaire externe formant saillie 14 ayant un diamètre compris entre 4 mm et 7 mm. Dans ce cas, le renfoncement complémentaire 8, lorsqu'il est soumis sous aucune contrainte élastique, présente un diamètre interne inférieur d'environ 10% à 30% au diamètre externe de la portion formant saillie 14. Avantageusement, le centre P de la portion en saillie 14 se trouve à une hauteur axiale selon l'axe A, située de 3 mm à 4 mm du siège 4c.The rod 3 (including the truncated cone 3c) is made of a material relatively rigid thermoplastic such as polypropylene. Its diameter is from about 3 mm to about 4 mm, its outer annular portion projecting 14 having a diameter between 4 mm and 7 mm. In this case, the recess complementary 8, when subjected under no elastic stress, has an internal diameter approximately 10% to 30% smaller than the diameter external of the protruding portion 14. Advantageously, the center P of the protruding portion 14 is at an axial height along the axis A, located 3 mm to 4 mm from seat 4c.

Une zone de transition du corps de valve, située entre la partie cylindrique 2d et la partie tronconique 2c du corps 2, comporte des moyens d'encliquetage 7 sous forme d'une gorge annulaire de fixation dont le rôle sera expliqué lors de la description de la figure 3.A transition zone of the valve body, located between the cylindrical part 2d and the frustoconical part 2c of the body 2, comprises latching means 7 in the form of an annular fixing groove whose role will be explained during the description of Figure 3.

Le fonctionnement de la valve 1 est schématisé sur la figure 2. Pour provoquer l'ouverture de la valve 1, on provoque un pivotement de la tige 3 autour du point d'articulation P, en direction de la flèche B. lors de ce pivotement, l'axe X de la tige est incliné par rapport à l'axe A du corps de valve, l'angle α formé entre les deux axes étant de l'ordre de 2° à 10°. Lors de ce pivotement, une partie 19a de la couronne 19 s'éloigne du siège 4c, créant un écartement d 2 . En même temps, le (ou les) plot(s) 20 qui se trouve(nt) sur la paroi tronconique 4b, du côté opposé à l'écartement d 2 , est (sont) écrasé(s) par la partie tronconique 3c de la tige. Dans l'exemple de réalisation considéré, quatre plots 20 de forme allongée ont été réalisés de hauteur d'environ 1 mm, d'une largeur d'environ 1,5 mm et d'une longueur d'environ 1,5 mm. Sous la poussée d'un gaz propulseur, le produit est alors acheminé via le tube plongeur 6 et l'orifice d'entrée 5 dans la chambre 4, pour arriver dans le canal de distribution 12 via l'écartement d2 et le passage radial 15. Lorsque cesse le pivotement, la distribution du produit s'arrête, car la couronne 19 revient en contact étanche contre le siège 4c. Ainsi, lors du pivotement de la tige dans le canal de sortie, celle-ci reste en contact annulaire étanche avec le canal, au niveau de tout ou partie de sa portion sphérique 14.The operation of the valve 1 is shown diagrammatically in FIG. 2. To cause the opening of the valve 1, the rod 3 is pivoted around the articulation point P, in the direction of the arrow B. during this pivoting , the axis X of the rod is inclined relative to the axis A of the valve body, the angle α formed between the two axes being of the order of 2 ° to 10 °. During this pivoting, a part 19a of the crown 19 moves away from the seat 4c, creating a spacing d 2 . At the same time, the stud (s) 20 which is (are) on the frustoconical wall 4b, on the side opposite the spacing d 2 , is (are) crushed (s) by the frustoconical part 3c of the stem. In the embodiment considered, four studs 20 of elongated shape were made about 1 mm high, about 1.5 mm wide and about 1.5 mm long. Under the thrust of a propellant gas, the product is then conveyed via the dip tube 6 and the inlet orifice 5 into the chamber 4, to arrive in the distribution channel 12 via the spacing d 2 and the radial passage 15. When the pivoting ceases, the dispensing of the product stops, because the crown 19 returns in sealed contact against the seat 4c. Thus, during the pivoting of the rod in the outlet channel, the latter remains in sealed annular contact with the channel, at the level of all or part of its spherical portion 14.

Sur la figure 3, on a représenté un second mode de réalisation d'une valve conforme à l'invention portant dans son ensemble la référence 101. Cette valve, représentée en position de repos, se distingue de la valve des figures 1 et 2 par le fait que la forme du profil de la portion annulaire de la tige, ainsi que la forme du profil complémentaire du canal de sortie sont inversées. Les parties de la valve 101 identiques ou jouant un rôle semblable aux parties de la valve des figures 1 et 2, portent les mêmes références majorées de 100. Leur description ne sera pas reprise que succinctement.In Figure 3, there is shown a second embodiment of a valve according to the invention as a whole bearing the reference 101. This valve, shown in the rest position, differs from the valve in the figures 1 and 2 by the fact that the shape of the profile of the annular portion of the rod, as well that the shape of the complementary profile of the outlet channel are reversed. The parts of the valve 101 identical or playing a role similar to the parts of the valve of FIGS. 1 and 2 have the same references increased by 100. Their description will not be repeated briefly.

Ainsi, la tige de valve 103 traverse le canal de sortie 110 qui relie la chambre de valve 104 avec l'extérieur. La tige présente, à l'intérieur du canal de sortie, sensiblement à mi-hauteur, une portion 114 formant un évidement sous forme d'une gorge annulaire en forme de portion de tore, présentant un centre géométrique P, le canal de sortie 110 ayant une portion 108 formant saillie, de forme complémentaire à celle de l'évidement 114, et apte à recevoir de manière étanche la gorge annulaire, le point d'articulation de la tige 103 coïncidant avec le centre géométrique P du tore.Thus, the valve stem 103 crosses the outlet channel 110 which connects the chamber valve 104 with the outside. The rod has, inside the outlet channel, substantially at mid-height, a portion 114 forming a recess in the form an annular groove in the shape of a torus portion, having a center geometric P, the outlet channel 110 having a protruding portion 108, of a shape complementary to that of the recess 114, and suitable for receiving sealingly the annular groove, the articulation point of the rod 103 coinciding with the geometric center P of the torus.

Le fonctionnement de la valve 103 est analogue au fonctionnement de la valve 1.The operation of the valve 103 is analogous to the operation of the valve 1.

Sur la figure 4, on voit la valve conforme aux figures 1 et 2, montée sur un récipient 202 sans coupelle porte-valve. Ce récipient est un flacon en aluminium, notamment monobloc, ou en un matériau plastique rigide tel que du polyéthylène téréphthalate (PET). Le récipient 202 comporte un col 204 dont l'extrémité ouverte est repliée d'équerre formant un plateau annulaire 206, pourvu d'un orifice circulaire 208.In Figure 4, we see the valve according to Figures 1 and 2, mounted on a container 202 without valve holder cup. This container is a aluminum, in particular monobloc, or a rigid plastic material such as polyethylene terephthalate (PET). The container 202 has a neck 204 whose open end is bent at right angles forming an annular plate 206, provided with a circular opening 208.

Dans l'orifice 208 est fixé le corps 2 de valve 1, par enfoncement de celui-ci, de sorte que le plateau annulaire 206 vienne se loger dans la gorge annulaire 7 du corps 2 de valve. Du fait de l'élasticité du corps 2, l'enfoncement de ce dernier dans l'orifice 208 peut être effectué par une opération simple. De plus, lorsque l'orifice 208 présente des variations de diamètre, les tolérances relativement grandes sont compensées par l'élasticité du corps de valve, sans risques de fuite de gaz propulseur. Ce montage est particulièrement avantageux, du point de vue économique.In the orifice 208 is fixed the valve body 2 1, by depressing the latter, so that the annular plate 206 comes to be housed in the annular groove 7 of the valve body 2. Due to the elasticity of the body 2, the depression of this the latter in the orifice 208 can be carried out by a simple operation. Of more, when the orifice 208 presents variations in diameter, the tolerances relatively large are compensated by the elasticity of the valve body, without risk of leaking propellant. This assembly is particularly economically advantageous.

Claims (20)

  1. Valve (1, 101) for dispensing a product in the form of a liquid, a mousse or foam, or a gel, comprising:
    a) a valve body (2, 102) of longitudinal axis (A) defining an internal chamber (4, 104) in communication with the product, the said valve body having an inlet orifice (5, 105) and an outlet duct (10, 110) ;
    b) an operating stem (3, 103) through which there passes a dispensing duct (12, 112) open at both its ends (3a, 103a; 3b, 103b), the operating stem being mounted in a sealed manner in the outlet duct, one of the ends (3a, 103a) of the dispensing duct having at least one supply passage (15), the other end (3b, 103b) opening to the outside of the valve body;
    c) means (M) for selectively placing the supply passage (15) in communication with the internal chamber (4, 104) either by tilting the stem (3, 103) sideways or by axially depressing the stem (3, 103), so as to allow product to be dispensed via the said dispensing duct (12, 112) ;
    characterized in that the valve body (2, 102) is made of elastomeric material, in that the stem (3, 103) has, inside the outlet duct (10, 110), a profile (14, 114) able to collaborate with a complementary profile (8, 108) of the outlet duct to define an articulation roughly about a point (P) and so that, whatever the angular position of the stem with respect to the axis (A), the said stem (3, 103) is in sealed annular contact with the duct (10, 110).
  2. Dispensing valve according to Claim 1, characterized in that the stem (3) exhibits, inside the outlet duct (10), an annular portion forming a projection (14) with respect to the rest of the stem, of spherical shape, having a geometric centre (P), the outlet duct (10) having a portion forming an indentation (8) of a shape that complements that of the portion forming a projection (14) and capable of receiving, in a sealed manner, the said projection-forming portion, the point of articulation of the stem more or less coinciding with the geometric centre (P).
  3. Dispensing valve according to Claim 2, characterized in that the annular projection-forming portion (14) has an outside diameter of between 5 and 7 mm inclusive, the rest of the stem (3) having a diameter of between 3 and 4 mm.
  4. Dispensing valve according to either one of Claims 2 and 3, characterized in that, when the said complementary indentation (8) is not subjected to any elastic stress, it has a radius of curvature 10% to 30% smaller than the radius of curvature of the projection-forming portion (14).
  5. Dispensing valve according to Claim 1, characterized in that the stem (103) exhibits, inside the outlet duct (110), a portion forming a recess (114) in the shape of an annular groove in the shape of a portion of a torus, exhibiting a geometric centre (P), the outlet duct (110) having a portion forming a projection (108) of a shape that complements that of the recess (114) and capable of receiving, in a sealed manner, the said annular groove (114), the point of articulation of the stem coinciding with the geometric centre (P) of the torus.
  6. Dispensing valve according to Claim 5, characterized in that, when the said projection-forming portion (108) is not subjected to any elastic stress, this portion has a radius of curvature 10% to 30% smaller than the radius of curvature of the recess-forming portion (114).
  7. Dispensing valve according to any one of the preceding claims, characterized in that the means (M) for selectively placing the supply passage (15) in communication with the internal chamber (4, 104) comprise a sealing ring (9, 119) urged by elastic return means (20, 120) to bear in sealed fashion against an annular seat (4c, 104c) formed by the said body.
  8. Dispensing valve according to Claim 7, characterized in that the distance, along the axis X of the stem, between the point of articulation (P) and the annular seat (4c, 104c) is between 3 mm and 4 mm.
  9. Dispensing valve according to Claim 7 or 8, characterized in that the valve body (2, 102) exhibits, between the point of articulation (P) and the seat (4c, 104c), a frustoconical portion (4d, 104d) a smaller diameter of which faces towards the point of articulation.
  10. Dispensing valve according to any one of Claims 7 to 9, characterized in that the internal chamber (4, 104) exhibits, between the seat. (4c, 104c) and the inlet orifice (5, 105), a frustoconical portion (4b, 104b) a smaller diameter of which faces towards the inlet orifice.
  11. Dispensing valve according to any one of Claims 1 to 10, characterized in that the dispensing duct (12, 112) opens into the valve chamber (4, 104) via a passage (15, 115) that passes radially through the stem.
  12. Valve according to any one of the preceding claims, characterized in that the valve body comprises external clip-fastening means (7) capable of cooperating with an orifice (208) of a container (202) of liquid product on which the said valve (1) is mounted so that the said product can be dispensed.
  13. Valve according to Claim 12, characterized in that the clip-fastening means (7, 107) consist of an annular groove.
  14. Valve according to one of the preceding claims, characterized in that the elastomeric material has a Shore A hardness in the range from 30 to 70.
  15. Valve according to any one of Claims 7 to 14, characterized in that the stem (3, 103) and the ring (19, 119) are made of a rigid thermoplastic.
  16. Valve according to one of Claims 7 to 15, characterized in that the elastic return means (20, 120) consist of at least one elastomeric block borne by a wall (4b, 104b) of the chamber (4, 104) and secured thereto, this (or these) block(s) bearing elastically against a part (18, 118) bearing the ring (19, 119).
  17. Valve according to one of Claims 1 to 15, characterized in that the elastic return means consist of at least one block produced on a part (18, 118) bearing the ring, on the opposite side to the sealing region, bearing elastically against a wall of the chamber.
  18. Dispenser comprising a container (202) filled with a liquid product placed under pressure using a propellant gas and a valve (1, 101) for dispensing the said product, characterized in that the valve is in accordance with any one of the preceding claims.
  19. Dispenser according to Claim 18, characterized in that the container (202) has a neck (204) able to collaborate with the clip-fastening means (7) of the valve (1).
  20. Dispenser according to Claim 19, characterized in that the valve (1) is mounted directly on the neck (204) of the container (202).
EP97402832A 1996-12-24 1997-11-25 Dispensing valve for pressurised fluids Expired - Lifetime EP0850851B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9615981 1996-12-24
FR9615981A FR2757488B1 (en) 1996-12-24 1996-12-24 VALVE FOR A CONDITIONING AND DISPENSING DEVICE OF A PRESSURIZED LIQUID, AND DEVICE THUS EQUIPPED

Publications (2)

Publication Number Publication Date
EP0850851A1 EP0850851A1 (en) 1998-07-01
EP0850851B1 true EP0850851B1 (en) 2003-05-21

Family

ID=9499108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402832A Expired - Lifetime EP0850851B1 (en) 1996-12-24 1997-11-25 Dispensing valve for pressurised fluids

Country Status (6)

Country Link
US (1) US5967382A (en)
EP (1) EP0850851B1 (en)
JP (2) JP3363765B2 (en)
DE (1) DE69722157T2 (en)
ES (1) ES2200140T3 (en)
FR (1) FR2757488B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999061347A1 (en) * 1998-05-27 1999-12-02 L'oreal Valve for pressurised fluid device
FR2779205B1 (en) * 1998-05-29 2000-08-25 Oreal VALVE AND PACKAGING AND DISTRIBUTION ASSEMBLY PROVIDED WITH SUCH A VALVE
FR2784081B1 (en) 1998-10-06 2000-12-01 Oreal AEROSOL DISPENSER COMPRISING A SPHERICAL TANK IN PLASTIC MATERIAL
FR2786167B1 (en) 1998-11-23 2001-01-05 Oreal VALVE FOR THE DISTRIBUTION OF A PRESSURIZED LIQUID, CONTAINER EQUIPPED WITH THIS VALVE AND METHOD FOR PACKAGING A CONTAINER THUS EQUIPPED
FR2793478B1 (en) 1999-05-11 2001-07-27 Oreal DEVICE FOR MOUNTING A VALVE ON A TANK, AND DISPENSER CONTAINING A PRESSURE PRODUCT, EQUIPPED WITH SUCH A DEVICE
GB2403275B (en) * 2000-06-10 2005-03-09 Wella Ag Dispensing device
GB2379484B (en) * 2000-06-10 2005-02-09 Wella Ag Dispensing device
US20120006859A1 (en) * 2010-07-08 2012-01-12 Craig Martin Wilkinson Device for dispensing material
US9554982B2 (en) 2012-09-14 2017-01-31 The Procter & Gamble Company Aerosol antiperspirant compositions, products and methods
US9579265B2 (en) 2014-03-13 2017-02-28 The Procter & Gamble Company Aerosol antiperspirant compositions, products and methods
US9662285B2 (en) 2014-03-13 2017-05-30 The Procter & Gamble Company Aerosol antiperspirant compositions, products and methods
CN111761521B (en) * 2020-08-04 2021-11-05 威海烟华安全玻璃有限公司 Glass sand blasting equipment

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DE1037377B (en) * 1955-11-21 1958-08-21 Wilhelm Waldherr Tilt valve for spray container
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US3627179A (en) 1969-10-17 1971-12-14 Clayton Corp Dispensing valve assembly including integrally molded spring
US3735955A (en) * 1970-10-22 1973-05-29 Precision Valve Corp Combination tilt or axially reciprocal action valve
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Also Published As

Publication number Publication date
ES2200140T3 (en) 2004-03-01
JP2003118785A (en) 2003-04-23
EP0850851A1 (en) 1998-07-01
JP3363765B2 (en) 2003-01-08
DE69722157D1 (en) 2003-06-26
FR2757488B1 (en) 1999-01-22
US5967382A (en) 1999-10-19
DE69722157T2 (en) 2004-02-05
FR2757488A1 (en) 1998-06-26
JPH10196825A (en) 1998-07-31

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