EP0485244A1 - Dispensing valve for a container with a fluid under pressure of a gas, and container equipped with such a valve - Google Patents

Dispensing valve for a container with a fluid under pressure of a gas, and container equipped with such a valve Download PDF

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Publication number
EP0485244A1
EP0485244A1 EP91402481A EP91402481A EP0485244A1 EP 0485244 A1 EP0485244 A1 EP 0485244A1 EP 91402481 A EP91402481 A EP 91402481A EP 91402481 A EP91402481 A EP 91402481A EP 0485244 A1 EP0485244 A1 EP 0485244A1
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EP
European Patent Office
Prior art keywords
rod
valve
valve body
spring
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91402481A
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German (de)
French (fr)
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EP0485244B1 (en
Inventor
Gilles Baudin
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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
    • B65D83/48—Lift valves, e.g. operated by push action

Definitions

  • the assembly being such that by pushing in the rod, the user causes the distribution passage to communicate with the interior of the valve body and the distribution of the product and, in the event of abnormal overpressure, the second spring is compressed and the rod raised, which puts the evacuation passage into the atmosphere and prevents the container from bursting.
  • a valve of this type is shown by FR-A-2 059 787.
  • This valve has a relatively large axial dimension and the two springs are not truly independent so that a change in the setting of one may cause a change in the setting of the other.
  • the invention aims, above all, to provide a valve of the kind defined above which no longer has or to a lesser degree the drawbacks mentioned above.
  • a distribution valve for a container containing a fluid under gas pressure, in particular for an aerosol can, of the kind defined above is characterized in that the two springs are arranged in parallel, that one end of the first and of the second spring is in abutment against a member stopped by a unilateral stop of the rod, this member being able to slide relatively to the rod in the event of its exit, that the second end of the first spring is in abutment against a stop secured to the body valve, while the second end of the second spring bears against a stop integral with the rod.
  • the valve is relatively compact and the independence of the springs makes it possible to adjust the intervention levels of each spring with precision, without there being interference from one on the other.
  • the first and second springs are helical springs arranged concentrically.
  • the first spring which intervenes during the distribution, is external to the second and its length is greater than that of the second spring, which intervenes for the evacuation in the event of abnormal overpressure.
  • the support member is advantageously constituted by a rigid washer comprising a radial shoulder projecting inwards on its internal diameter and suitable for cooperating with an external radial shoulder on the rod.
  • the arrangement of the transverse orifices of the rod is advantageously such that, when the rod is at rest, the transverse orifice opening into the evacuation channel is on the same side of the sealing part as the valve body, while the other transverse orifice of the distribution channel is closed externally by said sealing part.
  • This sealing part can be constituted by a washer of elastomeric material, or the like, clamped in the vicinity of its outer periphery between the upper edge of the valve body and a cup provided at the upper part of the container.
  • the stop integral with the valve body, serving as a support for the first spring, is constituted by a shoulder projecting radially towards the inside of the valve body.
  • the valve is arranged to allow, in the event of overpressure, the evacuation to the outside of the gas causing the overpressure and the maintenance of the liquid fraction inside the container.
  • the lower part of the valve stem is arranged to close the communication between a connection pipe to a dip tube and the discharge passage when the stem is lifted as a result of internal overpressure of the container, while '' an additional gas outlet is provided in the valve body above the sealing zone between the valve stem and the body to maintain the exhaust passage in connection with the upper part of the container and to allow the evacuation of the gas alone.
  • the lower end of the valve stem is advantageously provided with an O-ring seal while a frustoconical passage whose diameter decreases according to the direction of exit of the stem is provided in the valve body, the end of the rod provided with the O-ring moving in this passage which it comes to close, in the upper part, when the rod is raised, the blind channel of the rod turned towards the valve body communicating laterally with the interior volume of the valve body .
  • the end of the rod is preferably constituted by an insert comprising a transverse channel, and fixed, in particular by screwing, to the part of the rod where the blind channel opens, the radial shoulder constituted by the excess thickness of this insert on the rod constituting the stop for the second spring which intervenes in the event of evacuation.
  • the invention also relates to a container, in particular an aerosol can under gas pressure equipped with a valve as defined above.
  • Figure 1 of these drawings is a vertical axial section, with parts broken away, of a valve according to the invention, the rod being at rest in the closed position.
  • Figure 2 shows, similarly to the Figure 1, the valve while the rod is pressed by a user and occupies the dispensing position.
  • Figure 3 shows, similarly to Figure 1, the valve while the rod is out and occupies a discharge position due to an abnormal overpressure in the container.
  • FIG. 4 shows, similarly to FIG. 1, an alternative embodiment of the valve arranged to close a passage in the event of abnormal overpressure, the valve being shown in the rest position and therefore closed in FIG. 4.
  • Figure 5 shows the valve of Figure 4 in the dispensing position, rod pressed.
  • FIG. 6 finally, shows the valve of Figure 4 in the evacuation position, rod out.
  • a compressed gas contained under high pressure in a cartridge fitted with a regulator can be used as an aerosol propellant.
  • the cartridge can have a volume of approximately 20 ml and the gas can be found under a pressure of 40 to 90 bars in a full cartridge.
  • the regulator delivers if necessary, during use, a quantity of gas at low pressure, of the order of 2 to 5 bars, determined, so that the pressure inside the aerosol can remains constant.
  • Safety valves have already been proposed which, in the event of an incident, release the contents of the container to the atmosphere in order to prevent bursting.
  • the invention aims to produce a valve of this type which is particularly compact and which makes it possible to precisely regulate the different levels of distribution and discharge pressure.
  • a dispensing valve 1 for a container (not shown), provided with a cup 2 in which the body 3 of the valve is crimped.
  • This valve body 3 has a cylindrical shape and is open in the upper part; it has on its outer periphery, near its upper end, a bulge 3 a for crimping, while its upper edge 3 b forms a sort of circular edge allowing to exert support on a reduced surface.
  • the lower part of the body 3 is constituted by a bottom 4 provided with a tube 5 intended to be connected to a dip tube (not shown) extending to the bottom of the container for taking a liquid to be sprayed in the form of an aerosol. .
  • the valve 1 comprises a valve stem 6 movable in the body 3, in an axial translational movement, the stem 6 being coaxial with the body 3.
  • This rod 6 is provided, axially, with two blind channels 7, 8 aligned and opposite, each opening towards one end of the rod.
  • the two channels 7, 8 are separated by a transverse bottom 9 which can be provided substantially at mid-length of the rod 6.
  • Two transverse orifices 10, 11, opening respectively into the channels 7, 8, are provided in the lateral wall of the rod on either side axially from the bottom 9. These orifices 10, 11 can be angularly offset by 180 °, as illustrated in figure 1.
  • the first channel 7 and the associated transverse orifice 10 constitute a dispensing passage serving for the normal dispensing of the aerosol.
  • the other channel 8 and the associated transverse orifice 11 constitute an evacuation passage in the event of abnormal overpressure.
  • a sealing part 12 constituted by a washer of flexible material, in particular of elastomeric material, is held on the open end of the valve body.
  • the washer 12 is clamped against the rim 3b of the valve body by a folded part of the cup 2.
  • the inside diameter of the washer 12 presses tightly against the external surface of the rod 6 which can slide in this washer .
  • a first helical spring 13, coaxial with the body 3, is capable of urging the rod 6 in a direction corresponding to an exit from the rod.
  • This spring 13 is in abutment, at its end remote from the bottom 4, against a member 14, constituted by a rigid washer, stopped by a unilateral stop 15 of the rod 6.
  • This stop 15 is formed by a shoulder created at a reduction in the outside diameter of the rod 6.
  • the rigid washer 14 has a radial shoulder 16 projecting inwards on its inside diameter, suitable for cooperating with the external radial shoulder 15 of the rod.
  • the spring 13 is in abutment against a stop 17 secured to the valve body 3.
  • This stop 17 is constituted by shoulders 18 projecting radially inwards from the valve body 3 and regularly distributed angularly.
  • the outer upper edge 19 of the shoulders 18 is flared in the direction of the rod 6 so as to ensure good centering of the lower end of the spring 13.
  • An additional gas intake 4 a constituted by an orifice, is provided in the bottom 4 of the body 3 between two shoulders 18.
  • a second helical spring 20 is arranged concentrically with the spring 13, inside the latter, the diameter of this spring 20 being less than that of the spring 13.
  • the length of the spring 20 is less than that of the spring 13.
  • the upper end of the spring 20 is also in abutment against the washer 14.
  • the second end of this spring 20 is in abutment against a stop 21 secured to the rod 6.
  • This stop 21 is advantageously formed by a shoulder projecting radially towards the outside on the smaller diameter surface of the rod 6, in the vicinity of its lower end.
  • the assembly is arranged so that in the rest position of the rod 6, the transverse orifice 10 opens outwardly at the sealing washer 12 which closes this orifice, while the transverse orifice 11 is located at- below this washer 12 and opens into the body 3.
  • the transverse orifice 10 is connected to the interior volume of the body 3 and, under the effect of the internal pressure of the container, the product contained by this container is distributed through the orifice 10 and the distribution channel 7 for form an aerosol sprayed outside.
  • the rod 6 comes out more from the body 3.
  • the transverse orifice 11 has passed through the sealing washer 12, it comes into communication with the atmosphere, which allows the fluid to escape to the atmosphere through the evacuation channel. 8 and the orifice 11, until the pressure inside the container returns to an acceptable value.
  • the rod 6 then takes up the position of FIG. 1.
  • valve shown in Figures 1 to 3 therefore offers a guarantee of non-bursting, but it is nonetheless unpleasant to see all or part of the liquid contained in the container and in which the immersion tube is immersed, spreading to the outside the container.
  • FIGS. 4 to 6 The variant embodiment of FIGS. 4 to 6 is provided to guarantee not only the non-bursting of the container in the event of abnormal overpressure, but also to allow only the gaseous phase contained by the container to escape in the event of an incident (the container or canister being assumed in a vertical position, for example on a shelf).
  • the lower part 22 of the valve stem 6 is arranged to close the communication between the tubing 5 (and the plunger tube not shown connected to this tubing), and the discharge channel 8, when the stem is lifted as a result of an internal overpressure of the container.
  • the lower part 22 is constituted by a nozzle 23 of outer diameter greater than that of the spring 20, this nozzle 23 comprising on the side opposite to the pipe 5, a blind bore 24 comprising a thread in which is screwed a thread provided on the outer surface from the end of the rod 6.
  • the shoulder 21 is constituted by the upper transverse face of the end piece 23.
  • a diametral channel 25 is provided in the end piece 23 so as to communicate with the bottom of the bore 24 and to open out on either side on the cylindrical surface of the end piece 23.
  • the end piece 23 Towards its lower end, the end piece 23 has an annular groove 26 in which is mounted a seal 27 constituted by an O-ring, for example made of elastomeric material.
  • the lower end of the end piece 23 is capable of moving in a frustoconical passage 28 whose diameter decreases according to the direction of exit from the rod 6.
  • This passage 28 is advantageously provided in a sleeve 29 applied against the bottom 4 of the valve body 3 and whose external cylindrical surface matches the internal surface of the body 3.
  • the upper front end of the sleeve 29 constitutes the stop 17 for the first spring 13.
  • the diameter of the large base of the frusto-conical passage 28 is greater than the outside diameter of the seal 27, while the diameter of the small base (upper base) of the passage 28 is less than the outside diameter of the seal 27, while being greater than the outside diameter tip 23.
  • the additional gas intake 4b is provided in the cylindrical wall of the body 3 above the stop 17, that is to say above the area where the seal between the seal 27 and the frustoconical passage 28.
  • the interior part of the body 3, where the channel 25 opens, will remain in connection with the interior volume of the container.
  • the transverse orifice 10 In the rest position of this FIG. 4, or closed position, the transverse orifice 10 is opposite the sealing washer 12.
  • the spring 13 plates the assembly formed by the rod 6, the washer 14 , the spring 20, the end piece 23 and the seal 27 against the inner face of the washer 12.
  • the spraying of the aerosol can take place, the liquid being propelled through the tube 5 towards the outside, coming from the dip tube.
  • FIG. 6 illustrates the case of an operating incident due to an abnormal overpressure in the container, which is assumed to be vertical, for example placed on a shelf.
  • the seal 27 is applied in a sealed manner against an area situated towards the upper end of this passage as illustrated in FIG. 6.
  • the assembly is provided so that, in this position, the transverse passage 11 has crossed the washer 12 and opens to the atmosphere.
  • the evacuation can then be done only by the additional gas intake 4b , the channels 25 and 8 and the passage 11.

Abstract

The dispensing valve comprises a valve rod (6) moveable in a valve body (3), this rod being equipped axially with two opposed blind channels (7, 8), each opening out towards one end of the rod (6) and separated by a bottom (9), two transverse ports (10, 11) being provided in the lateral wall of the rod on either side of the bottom (9), each port communicating respectively with a channel; a sealing piece (12) which is held in the valve body and through which the rod (6) passes; a first spring (13) capable of stressing the rod (6) in relation to the valve body (3) in a direction corresponding to an extension of the rod; and a second spring (20) arranged so as to oppose an extension of the rod (6) as long as the pressure inside the container does not exceed a predetermined value. The two springs (13, 20) are arranged in parallel; one end of the first (13) and of the second (20) spring bears against a member (14) detained by unilateral stop (15) of the rod, this member (14) being capable of sliding relative to the rod (6) in the event of the extension of the latter, and the second end of the first spring (13) bears against a stop (17) fixed to the valve body (3), whilst the second end of the second spring (20) bears against a stop (21) fixed to the rod (6). <IMAGE>

Description

L'invention est relative à une valve de distribution pour un récipient contenant un fluide sous pression gazeuse, en particulier pour bidon aérosol, du genre de celles qui comprennent :

  • une tige de soupape mobile dans un corps de valve, cette tige étant munie axialement de deux canaux borgnes opposés débouchant chacun vers une extrémité de la tige et séparés par un fond, deux orifices transversaux étant prévus dans la paroi latérale de la tige de part et d'autre du fond, chaque orifice communiquant respectivement avec un canal, le canal éloigné du corps de valve et l'orifice transversal associé constituant un passage de distribution, l'autre canal et l'orifice transversal associé constituant un passage d'évacuation ;
  • une pièce d'étanchéité maintenue dans le corps de valve et traversée par la tige ;
  • un premier ressort propre à solliciter la tige, relativement au corps de valve, dans un sens correspondant à une sortie de la tige ;
  • et un second ressort disposé de manière à s'opposer à une sortie de la tige tant que la pression à l'intérieur du récipient ne dépasse pas une valeur prédéterminée,
The invention relates to a dispensing valve for a container containing a fluid under gas pressure, in particular for an aerosol can, of the type which includes:
  • a valve stem movable in a valve body, this stem being provided axially with two opposite blind channels each opening towards one end of the stem and separated by a bottom, two transverse orifices being provided in the side wall of the stem on the side and on the other side of the bottom, each orifice communicating respectively with a channel, the channel remote from the valve body and the associated transverse orifice constituting a distribution passage, the other channel and the associated transverse orifice constituting a discharge passage;
  • a sealing part held in the valve body and traversed by the rod;
  • a first spring capable of urging the rod, relative to the valve body, in a direction corresponding to an exit from the rod;
  • and a second spring arranged so as to oppose an exit from the rod as long as the pressure inside the container does not exceed a predetermined value,

l'ensemble étant tel qu'en enfonçant la tige, l'utilisateur provoque la mise en communication du passage de distribution avec l'intérieur du corps de valve et la distribution du produit et, qu'en cas de surpression anormale, le deuxième ressort est comprimé et la tige soulevée, ce qui met à l'atmosphère le passage d'évacuation et permet d'éviter un éclatement du récipient.the assembly being such that by pushing in the rod, the user causes the distribution passage to communicate with the interior of the valve body and the distribution of the product and, in the event of abnormal overpressure, the second spring is compressed and the rod raised, which puts the evacuation passage into the atmosphere and prevents the container from bursting.

Une valve de ce type est montrée par FR-A-2 059 787. Cette valve présente une dimension axiale relativement importante et les deux ressorts ne sont pas véritablement indépendants de sorte qu'une modification du réglage de l'un peut entraîner une modification du réglage de l'autre.A valve of this type is shown by FR-A-2 059 787. This valve has a relatively large axial dimension and the two springs are not truly independent so that a change in the setting of one may cause a change in the setting of the other.

L'invention a pour but, surtout, de fournir une valve du genre défini précédemment qui ne présente plus ou à un degré moindre les inconvénients évoqués ci-dessus.The invention aims, above all, to provide a valve of the kind defined above which no longer has or to a lesser degree the drawbacks mentioned above.

Selon l'invention, une valve de distribution pour un récipient contenant un fluide sous pression gazeuse, en particulier pour bidon aérosol, du genre défini précédemment est caractérisée par le fait que les deux ressorts sont disposés en parallèle, qu'une extrémité du premier et du second ressort est en appui contre un organe arrêté par une butée unilatérale de la tige, cet organe pouvant coulisser relativement à la tige en cas de sortie de cette dernière, que la deuxième extrémité du premier ressort est en appui contre une butée solidaire du corps de valve, tandis que la deuxième extrémité du deuxième ressort est en appui contre une butée solidaire de la tige.According to the invention, a distribution valve for a container containing a fluid under gas pressure, in particular for an aerosol can, of the kind defined above is characterized in that the two springs are arranged in parallel, that one end of the first and of the second spring is in abutment against a member stopped by a unilateral stop of the rod, this member being able to slide relatively to the rod in the event of its exit, that the second end of the first spring is in abutment against a stop secured to the body valve, while the second end of the second spring bears against a stop integral with the rod.

Grâce à un tel agencement, la valve est relativement compacte et l'indépendance des ressorts permet de régler les niveaux d'intervention de chaque ressort avec précision, sans qu'il y ait interférence de l'un sur l'autre.Thanks to such an arrangement, the valve is relatively compact and the independence of the springs makes it possible to adjust the intervention levels of each spring with precision, without there being interference from one on the other.

Avantageusement, le premier et le deuxième ressorts sont des ressorts en hélice disposés concentriquement. Le premier ressort qui intervient lors de la distribution, est extérieur au second et sa longueur est supérieure à celle du deuxième ressort,lequel intervient pour l'évacuation en cas de surpression anormale.Advantageously, the first and second springs are helical springs arranged concentrically. The first spring which intervenes during the distribution, is external to the second and its length is greater than that of the second spring, which intervenes for the evacuation in the event of abnormal overpressure.

L'organe d'appui est avantageusement constitué par une rondelle rigide comportant un épaulement radial en saillie vers l'intérieur sur son diamètre intérieur et propre à coopérer avec un épaulement radial extérieur de la tige.The support member is advantageously constituted by a rigid washer comprising a radial shoulder projecting inwards on its internal diameter and suitable for cooperating with an external radial shoulder on the rod.

La disposition des orifices transversaux de la tige est avantageusement telle que, lorsque la tige est au repos, l'orifice transversal débouchant dans le canal d'évacuation se trouve du même côté de la pièce d'étanchéité que le corps de valve, tandis que l'autre orifice transversal du canal de distribution est fermé extérieurement par ladite pièce d'étanchéité.The arrangement of the transverse orifices of the rod is advantageously such that, when the rod is at rest, the transverse orifice opening into the evacuation channel is on the same side of the sealing part as the valve body, while the other transverse orifice of the distribution channel is closed externally by said sealing part.

Cette pièce d'étanchéité peut être constituée par une rondelle en matière élastomère, ou analogue, serrée au voisinage de sa périphérie extérieure entre le bord supérieur du corps de valve et une coupelle prévue à la partie supérieure du récipient.This sealing part can be constituted by a washer of elastomeric material, or the like, clamped in the vicinity of its outer periphery between the upper edge of the valve body and a cup provided at the upper part of the container.

La butée solidaire du corps de valve, servant d'appui au premier ressort, est constituée par un épaulement faisant saillie radialement vers l'intérieur du corps de valve.The stop integral with the valve body, serving as a support for the first spring, is constituted by a shoulder projecting radially towards the inside of the valve body.

Selon une réalisation préférée, lorsque le récipient comporte un tube plongeur solidaire du corps de valve et débouchant dans ce dernier, la valve est agencée pour permettre, en cas de surpression, l'évacuation à l'extérieur du gaz causant la surpression et le maintien de la fraction liquide à l'intérieur du récipient.According to a preferred embodiment, when the container comprises a dip tube integral with the valve body and opening into the latter, the valve is arranged to allow, in the event of overpressure, the evacuation to the outside of the gas causing the overpressure and the maintenance of the liquid fraction inside the container.

Dans ce but, la partie inférieure de la tige de valve est agencée pour fermer la communication entre une tubulure de raccordement à un tube plongeur et le passage d'évacuation lorsque la tige est soulevée par suite d'une surpression interne du bidon, alors qu'une prise de gaz additionnelle est prévue dans le corps de valve au-dessus de la zone d'étanchéité entre la tige de valve et le corps pour maintenir le passage d'évacuation en liaison avec la partie supérieure du récipient et pour permettre l'évacuation du gaz seul.For this purpose, the lower part of the valve stem is arranged to close the communication between a connection pipe to a dip tube and the discharge passage when the stem is lifted as a result of internal overpressure of the container, while '' an additional gas outlet is provided in the valve body above the sealing zone between the valve stem and the body to maintain the exhaust passage in connection with the upper part of the container and to allow the evacuation of the gas alone.

L'extrémité inférieure de la tige de valve est avantageusement munie d'une bague d'étanchéité torique tandis qu'un passage tronconique dont le diamètre diminue suivant le sens de sortie de la tige est prévu dans le corps de valve, l'extrémité de la tige munie de la bague torique se déplaçant dans ce passage qu'elle vient fermer, en partie haute, lorsque la tige est soulevée, le canal borgne de la tige tourné vers le corps de valve communiquant latéralement avec le volume intérieur du corps de valve.The lower end of the valve stem is advantageously provided with an O-ring seal while a frustoconical passage whose diameter decreases according to the direction of exit of the stem is provided in the valve body, the end of the rod provided with the O-ring moving in this passage which it comes to close, in the upper part, when the rod is raised, the blind channel of the rod turned towards the valve body communicating laterally with the interior volume of the valve body .

L'extrémité de la tige est de préférence constituée par une pièce rapportée comportant un canal transversal, et fixée, notamment par vissage, sur la partie de la tige où débouche le canal borgne, l'épaulement radial constitué par la surépaisseur de cette pièce rapportée sur la tige constituant la butée pour le deuxième ressort qui intervient en cas d'évacuation.The end of the rod is preferably constituted by an insert comprising a transverse channel, and fixed, in particular by screwing, to the part of the rod where the blind channel opens, the radial shoulder constituted by the excess thickness of this insert on the rod constituting the stop for the second spring which intervenes in the event of evacuation.

L'invention est également relative à un récipient, notamment un bidon aérosol sous pression gazeuse équipé d'une valve telle que définie précédemment.The invention also relates to a container, in particular an aerosol can under gas pressure equipped with a valve as defined above.

L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après à propos d'exemples de réalisation décrits avec référence aux dessins ci-annexés, mais qui ne sont nullement limitatifs.The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be more explicitly discussed below in connection with exemplary embodiments described with reference to the attached drawings, but which are in no way limiting.

La figure 1, de ces dessins, est une coupe axiale verticale, avec parties arrachées, d'une valve conforme à l'invention, la tige étant au repos en position de fermeture.Figure 1 of these drawings is a vertical axial section, with parts broken away, of a valve according to the invention, the rod being at rest in the closed position.

La figure 2 montre, semblablement à la figure 1, la valve alors que la tige est enfoncée par un utilisateur et occupe la position de distribution.Figure 2 shows, similarly to the Figure 1, the valve while the rod is pressed by a user and occupies the dispensing position.

La figure 3 montre, semblablement à la figure 1, la valve alors que la tige est sortie et occupe une position d'évacuation en raison d'une surpression anormale dans le récipient.Figure 3 shows, similarly to Figure 1, the valve while the rod is out and occupies a discharge position due to an abnormal overpressure in the container.

La figure 4 montre, semblablement à la figure 1, une variante de réalisation de la valve agencée pour fermer un passage en cas de surpression anormale, la valve étant représentée en position de repos et donc de fermeture sur la figure 4.FIG. 4 shows, similarly to FIG. 1, an alternative embodiment of the valve arranged to close a passage in the event of abnormal overpressure, the valve being shown in the rest position and therefore closed in FIG. 4.

La figure 5 montre la valve de la figure 4 en position de distribution, tige enfoncée.Figure 5 shows the valve of Figure 4 in the dispensing position, rod pressed.

La figure 6, enfin, montre la valve de la figure 4 en position d'évacuation, tige sortie.Figure 6, finally, shows the valve of Figure 4 in the evacuation position, rod out.

Avant de décrire la valve proprement dite, il convient de rappeler que l'on peut utiliser comme propulseur d'aérosol un gaz comprimé contenu sous haute pression dans une cartouche munie d'un détendeur. A titre indicatif, non limitatif, la cartouche peut avoir un volume d'environ 20 ml et le gaz se trouver sous une pression de 40 à 90 bars dans une cartouche pleine. Le détendeur délivre si nécessaire, au cours de l'utilisation, une quantité de gaz à faible pression, de l'ordre de 2 à 5 bars, déterminée, de telle sorte que la pression à l'intérieur du bidon aérosol reste constante.Before describing the valve itself, it should be remembered that a compressed gas contained under high pressure in a cartridge fitted with a regulator can be used as an aerosol propellant. As an indication, without limitation, the cartridge can have a volume of approximately 20 ml and the gas can be found under a pressure of 40 to 90 bars in a full cartridge. The regulator delivers if necessary, during use, a quantity of gas at low pressure, of the order of 2 to 5 bars, determined, so that the pressure inside the aerosol can remains constant.

Si pour une raison quelconque cette cartouche éclate ou se fend, elle libère de façon instantanée le gaz comprimé à haute pression qu'elle renferme. Ceci va provoquer une surpression, à l'intérieur du récipient aérosol qui selon les cas, peut engendrer un éclatement du récipient.If for some reason this cartridge bursts or cracks, it instantly releases the high pressure compressed gas it contains. This will cause an overpressure inside the aerosol container which, depending on the case, may cause the container to burst.

De même, on peut imaginer qu'une forte montée en température du récipient aérosol, selon la formule et le propulseur utilisés, puisse engendrer une pression interne que le récipient aérosol ne peut contenir, ce qui provoque son éclatement.Similarly, one can imagine that a sharp rise in temperature of the aerosol container, depending on the formula and the propellant used, could cause an internal pressure that the aerosol container cannot contain, which causes it to burst.

On a déjà proposé des valves de sécurité qui, en cas d'incident, libèrent à l'atmosphère le contenu du récipient afin d'éviter l'éclatement.Safety valves have already been proposed which, in the event of an incident, release the contents of the container to the atmosphere in order to prevent bursting.

L'invention vise à réaliser une valve de ce type qui soit particulièrement compacte et qui permette de régler avec précision les différents niveaux de pression de distribution et d'évacuation.The invention aims to produce a valve of this type which is particularly compact and which makes it possible to precisely regulate the different levels of distribution and discharge pressure.

En se reportant à la figure 1, on peut voir une valve de distribution 1 pour un récipient (non représenté), muni d'une coupelle 2 dans laquelle le corps 3 de la valve est serti. Ce corps de valve 3 a une forme cylindrique et est ouvert en partie haute ; il comporte sur sa périphérie extérieure, à proximité de son extrémité supérieure, un renflement 3a pour le sertissage, tandis que son bord supérieur 3b forme une sorte d'arête circulaire permettant d'exercer un appui sur une surface réduite. La partie inférieure du corps 3 est constituée par un fond 4 muni d'une tubulure 5 destinée à être raccordée à un tube plongeur (non représenté) s'étendant jusqu'au fond du récipient pour prélever un liquide à pulvériser sous forme d'aérosol.Referring to Figure 1, we can see a dispensing valve 1 for a container (not shown), provided with a cup 2 in which the body 3 of the valve is crimped. This valve body 3 has a cylindrical shape and is open in the upper part; it has on its outer periphery, near its upper end, a bulge 3 a for crimping, while its upper edge 3 b forms a sort of circular edge allowing to exert support on a reduced surface. The lower part of the body 3 is constituted by a bottom 4 provided with a tube 5 intended to be connected to a dip tube (not shown) extending to the bottom of the container for taking a liquid to be sprayed in the form of an aerosol. .

La valve 1 comprend une tige de soupape 6 mobile dans le corps 3, suivant un mouvement de translation axiale, la tige 6 étant coaxiale au corps 3.The valve 1 comprises a valve stem 6 movable in the body 3, in an axial translational movement, the stem 6 being coaxial with the body 3.

Cette tige 6 est munie, axialement, de deux canaux borgnes 7, 8 alignés et opposés, débouchant chacun vers une extrémité de la tige. Le canal 7 ou canal de distribution, le plus éloigné du fond 4 du corps de valve, débouche à l'atmosphère, tandis que l'autre canal 8 débouche dans le corps de valve 3. Les deux canaux 7, 8 sont séparés par un fond transversal 9 qui peut être prévu sensiblement à mi-longueur de la tige 6.This rod 6 is provided, axially, with two blind channels 7, 8 aligned and opposite, each opening towards one end of the rod. The channel 7 or distribution channel, furthest from the bottom 4 of the valve body, opens into the atmosphere, while the other channel 8 opens into the valve body 3. The two channels 7, 8 are separated by a transverse bottom 9 which can be provided substantially at mid-length of the rod 6.

Deux orifices transversaux 10, 11, débouchant respectivement dans les canaux 7, 8, sont prévus dans la paroi latérale de la tige de part et d'autre axialement du fond 9. Ces orifices 10, 11 peuvent être décalés angulairement de 180°, comme illustré sur la figure 1.Two transverse orifices 10, 11, opening respectively into the channels 7, 8, are provided in the lateral wall of the rod on either side axially from the bottom 9. These orifices 10, 11 can be angularly offset by 180 °, as illustrated in figure 1.

Le premier canal 7 et l'orifice transversal associé 10 constituent un passage de distribution servant à la distribution normale de l'aérosol. L'autre canal 8 et l'orifice transversal associé 11 constituent un passage d'évacuation en cas de surpression anormale.The first channel 7 and the associated transverse orifice 10 constitute a dispensing passage serving for the normal dispensing of the aerosol. The other channel 8 and the associated transverse orifice 11 constitute an evacuation passage in the event of abnormal overpressure.

Une pièce d'étanchéité 12, constituée par une rondelle en matière souple, notamment en matière élastomère, est maintenue sur l'extrémité ouverte du corps de valve. La rondelle 12 est serrée contre le rebord 3b du corps de valve par une partie rabattue de la coupelle 2. Le diamètre intérieur de la rondelle 12 s'appuie de manière étanche contre la surface extérieure de la tige 6 qui peut coulisser dans cette rondelle.A sealing part 12, constituted by a washer of flexible material, in particular of elastomeric material, is held on the open end of the valve body. The washer 12 is clamped against the rim 3b of the valve body by a folded part of the cup 2. The inside diameter of the washer 12 presses tightly against the external surface of the rod 6 which can slide in this washer .

Un premier ressort en hélice 13, coaxial au corps 3, est propre à solliciter la tige 6 dans un sens correspondant à une sortie de la tige.A first helical spring 13, coaxial with the body 3, is capable of urging the rod 6 in a direction corresponding to an exit from the rod.

Ce ressort 13 est en appui, à son extrémité éloignée du fond 4, contre un organe 14, constitué par une rondelle rigide, arrêtée par une butée unilatérale 15 de la tige 6. Cette butée 15 est formée par un épaulement créé au niveau d'une diminution du diamètre extérieur de la tige 6. La rondelle rigide 14 comporte un épaulement radial 16 en saillie vers l'intérieur sur son diamètre intérieur, propre à coopérer avec l'épaulement radial extérieur 15 de la tige.This spring 13 is in abutment, at its end remote from the bottom 4, against a member 14, constituted by a rigid washer, stopped by a unilateral stop 15 of the rod 6. This stop 15 is formed by a shoulder created at a reduction in the outside diameter of the rod 6. The rigid washer 14 has a radial shoulder 16 projecting inwards on its inside diameter, suitable for cooperating with the external radial shoulder 15 of the rod.

A son autre extrémité, le ressort 13 est en appui contre une butée 17 solidaire du corps de valve 3. Cette butée 17 est constituée par des épaulements 18 faisant saillie radialement vers l'intérieur du corps de valve 3 et régulièrement répartis angulairement. Le bord supérieur extérieur 19 des épaulements 18 est évasé en direction de la tige 6 de manière à assurer un bon centrage de l'extrémité inférieure du ressort 13.At its other end, the spring 13 is in abutment against a stop 17 secured to the valve body 3. This stop 17 is constituted by shoulders 18 projecting radially inwards from the valve body 3 and regularly distributed angularly. The outer upper edge 19 of the shoulders 18 is flared in the direction of the rod 6 so as to ensure good centering of the lower end of the spring 13.

Une prise de gaz additionnelle 4a, constituée par un orifice, est prévue dans le fond 4 du corps 3 entre deux épaulements 18.An additional gas intake 4 a , constituted by an orifice, is provided in the bottom 4 of the body 3 between two shoulders 18.

Un deuxième ressort en hélice 20 est disposé concentriquement au ressort 13, à l'intérieur de ce dernier, le diamètre de ce ressort 20 étant inférieur à celui du ressort 13. La longueur du ressort 20 est inférieure à celle du ressort 13.A second helical spring 20 is arranged concentrically with the spring 13, inside the latter, the diameter of this spring 20 being less than that of the spring 13. The length of the spring 20 is less than that of the spring 13.

L'extrémité supérieure du ressort 20 est également en appui contre la rondelle 14. La deuxième extrémité de ce ressort 20 est en appui contre une butée 21 solidaire de la tige 6. Cette butée 21 est avantageusement formée par un épaulement faisant saillie radialement vers l'extérieur sur la surface de plus faible diamètre de la tige 6, au voisinage de son extrémité inférieure.The upper end of the spring 20 is also in abutment against the washer 14. The second end of this spring 20 is in abutment against a stop 21 secured to the rod 6. This stop 21 is advantageously formed by a shoulder projecting radially towards the outside on the smaller diameter surface of the rod 6, in the vicinity of its lower end.

L'ensemble est agencé de manière qu'en position de repos de la tige 6, l'orifice transversal 10 débouche extérieurement au niveau de la rondelle d'étanchéité 12 qui ferme cet orifice, tandis que l'orifice transversal 11 est situé au-dessous de cette rondelle 12 et débouche dans le corps 3.The assembly is arranged so that in the rest position of the rod 6, the transverse orifice 10 opens outwardly at the sealing washer 12 which closes this orifice, while the transverse orifice 11 is located at- below this washer 12 and opens into the body 3.

Le fonctionnement de la valve de la figure 1 est le suivant.The operation of the valve of Figure 1 is as follows.

Lorsque l'utilisateur veut effectuer une projection sous forme d'aérosol du produit contenu dans le récipient, il exerce une poussée vers le bas sur la tige 6, généralement par l'intermédiaire d'une tête (non représentée) montée sur la tige 6. Cette dernière s'enfonce, en coulissant dans la rondelle 12, comme illustré sur la figure 2. L'organe d'appui 14 est entraîné par la tige 6 et repousse le seul ressort 13. Le ressort 20 se déplace avec la tige 6 et n'intervient pas.When the user wants to carry out an aerosol spraying of the product contained in the container, he pushes down on the rod 6, generally by means of a head (not shown) mounted on the rod 6 The latter sinks, sliding in the washer 12, as illustrated in Figure 2. The support member 14 is driven by the rod 6 and pushes the only spring 13. The spring 20 moves with the rod 6 and does not intervene.

L'orifice transversal 10 se trouve mis en liaison avec le volume intérieur du corps 3 et, sous l'effet de la pression interne du récipient, le produit contenu par ce récipient est distribué par l'orifice 10 et le canal de distribution 7 pour former un aérosol projeté à l'extérieur.The transverse orifice 10 is connected to the interior volume of the body 3 and, under the effect of the internal pressure of the container, the product contained by this container is distributed through the orifice 10 and the distribution channel 7 for form an aerosol sprayed outside.

Lorsque l'utilisateur cesse d'appuyer sur la tige 6, cette dernière reprend sa position de fermeture de la figure 1.When the user stops pressing on the rod 6, the latter returns to its closed position in FIG. 1.

En cas de surpression anormale à l'intérieur du récipient, cette surpression est transmise à l'intérieur du corps 3 et agit sur la tige de valve 6 à l'encontre du seul ressort 20.In the event of abnormal overpressure inside the container, this overpressure is transmitted inside the body 3 and acts on the valve stem 6 against the single spring 20.

Lorsque cette surpression atteint une valeur prédéterminée, dépendant du réglage du ressort 20, ce dernier est comprimé, l'organe 14 restant en appui contre la rondelle 12, comme représenté sur la figure 3.When this overpressure reaches a predetermined value, depending on the setting of the spring 20, the latter is compressed, the member 14 remaining in abutment against the washer 12, as shown in FIG. 3.

La tige 6 sort davantage du corps 3. Lorsque l'orifice transversal 11 a franchi la rondelle d'étanchéité 12, il vient en communication avec l'atmosphère ce qui permet l'échappement du fluide à l'atmosphère par le canal d'évacuation 8 et l'orifice 11, jusqu'à ce que la pression à l'intérieur du récipient revienne à une valeur acceptable. La tige 6 reprend alors la position de la figure 1.The rod 6 comes out more from the body 3. When the transverse orifice 11 has passed through the sealing washer 12, it comes into communication with the atmosphere, which allows the fluid to escape to the atmosphere through the evacuation channel. 8 and the orifice 11, until the pressure inside the container returns to an acceptable value. The rod 6 then takes up the position of FIG. 1.

La valve montrée sur les figures 1 à 3 offre donc une garantie de non éclatement, mais il n'en est pas moins désagréable de voir tout ou partie du liquide contenu dans le récipient et dans lequel est immergé le tube plongeur, se répandre à l'extérieur du récipient.The valve shown in Figures 1 to 3 therefore offers a guarantee of non-bursting, but it is nonetheless unpleasant to see all or part of the liquid contained in the container and in which the immersion tube is immersed, spreading to the outside the container.

La variante de réalisation des figures 4 à 6 est prévue pour garantir non seulement le non éclatement du récipient en cas de surpression anormale, mais aussi pour ne laisser échapper que la phase gazeuse contenue par le récipient en cas d'incident (le récipient ou bidon étant supposé en position verticale, par exemple sur une étagère).The variant embodiment of FIGS. 4 to 6 is provided to guarantee not only the non-bursting of the container in the event of abnormal overpressure, but also to allow only the gaseous phase contained by the container to escape in the event of an incident (the container or canister being assumed in a vertical position, for example on a shelf).

La plupart des éléments déjà décrits à propos des figures 1 à 3, qui se retrouvent sur les figures 4 à 6, sont désignés par les mêmes références numériques sans que leur description soit reprise.Most of the elements already described with reference to FIGS. 1 to 3, which are found in FIGS. 4 to 6, are designated by the same reference numbers without their description being repeated.

La partie inférieure 22 de la tige de valve 6 est agencée pour fermer la communication entre la tubulure 5 (et le tube plongeur non représenté relié à cette tubulure), et le canal d'évacuation 8, lorsque la tige est soulevée par suite d'une surpression interne du récipient.The lower part 22 of the valve stem 6 is arranged to close the communication between the tubing 5 (and the plunger tube not shown connected to this tubing), and the discharge channel 8, when the stem is lifted as a result of an internal overpressure of the container.

La partie inférieure 22 est constituée par un embout 23 de diamètre extérieur supérieur à celui du ressort 20, cet embout 23 comportant du côté opposé à la tubulure 5, un alésage borgne 24 comportant un taraudage dans lequel est vissé un filetage prévu sur la surface extérieure de l'extrémité de la tige 6.The lower part 22 is constituted by a nozzle 23 of outer diameter greater than that of the spring 20, this nozzle 23 comprising on the side opposite to the pipe 5, a blind bore 24 comprising a thread in which is screwed a thread provided on the outer surface from the end of the rod 6.

L'épaulement 21 est constitué par la face transversale supérieure de l'embout 23.The shoulder 21 is constituted by the upper transverse face of the end piece 23.

Un canal diamétral 25 est prévu dans l'embout 23 de manière à communiquer avec le fond de l'alésage 24 et à déboucher de part et d'autre sur la surface cylindrique de l'embout 23.A diametral channel 25 is provided in the end piece 23 so as to communicate with the bottom of the bore 24 and to open out on either side on the cylindrical surface of the end piece 23.

Vers son extrémité inférieure, l'embout 23 comporte une gorge annulaire 26 dans laquelle est monté un joint d'étanchéité 27 constitué par une bague torique, par exemple en matière élastomère.Towards its lower end, the end piece 23 has an annular groove 26 in which is mounted a seal 27 constituted by an O-ring, for example made of elastomeric material.

L'extrémité inférieure de l'embout 23 est propre à se déplacer dans un passage tronconique 28 dont le diamètre diminue suivant le sens de sortie de la tige 6. Ce passage 28 est avantageusement prévu dans un manchon 29 appliqué contre le fond 4 du corps de valve 3 et dont la surface cylindrique extérieure épouse la surface intérieure du corps 3. L'extrémité frontale supérieure du manchon 29 constitue la butée 17 pour le premier ressort 13.The lower end of the end piece 23 is capable of moving in a frustoconical passage 28 whose diameter decreases according to the direction of exit from the rod 6. This passage 28 is advantageously provided in a sleeve 29 applied against the bottom 4 of the valve body 3 and whose external cylindrical surface matches the internal surface of the body 3. The upper front end of the sleeve 29 constitutes the stop 17 for the first spring 13.

Le diamètre de la grande base du passage tronconique 28 est supérieur au diamètre extérieur du joint 27, tandis que le diamètre de la petite base (base supérieure) du passage 28 est inférieur au diamètre extérieur du joint 27, tout en étant supérieur au diamètre extérieur de l'embout 23.The diameter of the large base of the frusto-conical passage 28 is greater than the outside diameter of the seal 27, while the diameter of the small base (upper base) of the passage 28 is less than the outside diameter of the seal 27, while being greater than the outside diameter tip 23.

Dans la position de repos ou de fermeture de la tige 6, représentée sur la figure 4, le joint 27 est sensiblement à mi-hauteur du passage 28.In the rest or closed position of the rod 6, shown in FIG. 4, the seal 27 is substantially halfway up the passage 28.

La prise de gaz additionnelle 4b est prévue dans la paroi cylindrique du corps 3 au-dessus de la butée 17, c'est-à-dire au-dessus de la zone où s'établit l'étanchéité entre le joint 27 et le passage tronconique 28. Ainsi, la partie intérieure du corps 3, où débouche le canal 25, restera en liaison avec le volume intérieur du récipient.The additional gas intake 4b is provided in the cylindrical wall of the body 3 above the stop 17, that is to say above the area where the seal between the seal 27 and the frustoconical passage 28. Thus, the interior part of the body 3, where the channel 25 opens, will remain in connection with the interior volume of the container.

Ceci étant, le fonctionnement de la valve de la figure 4 est le suivant.That said, the operation of the valve of Figure 4 is as follows.

Dans la position repos de cette figure 4, ou position de fermeture, l'orifice transversal 10 est en vis-à-vis de la rondelle d'étanchéité 12. Le ressort 13 plaque l'ensemble formé par la tige 6, la rondelle 14, le ressort 20, l'embout 23 et le joint 27 contre la face intérieure de la rondelle 12.In the rest position of this FIG. 4, or closed position, the transverse orifice 10 is opposite the sealing washer 12. The spring 13 plates the assembly formed by the rod 6, the washer 14 , the spring 20, the end piece 23 and the seal 27 against the inner face of the washer 12.

Lorsqu'un utilisateur appuie sur la tige 6, comme représenté sur la figure 5, le ressort 13 est comprimé et l'orifice transversal supérieur 10 est dégagé et débouche à l'intérieur du corps 3. Ceci autorise la communication entre l'intérieur du récipient et l'atmosphère.When a user presses on the rod 6, as shown in FIG. 5, the spring 13 is compressed and the upper transverse orifice 10 is released and opens out inside the body 3. This allows communication between the inside of the container and atmosphere.

La projection de l'aérosol pourra avoir lieu, le liquide étant propulsé à travers la tubulure 5 vers l'extérieur, en provenance du tube plongeur.The spraying of the aerosol can take place, the liquid being propelled through the tube 5 towards the outside, coming from the dip tube.

La figure 6 illustre le cas d'un incident de fonctionnement dû à une surpression anormale dans le récipient, qui est supposé vertical, par exemple posé sur une étagère.FIG. 6 illustrates the case of an operating incident due to an abnormal overpressure in the container, which is assumed to be vertical, for example placed on a shelf.

A partir de la position de repos, illustrée sur la figure 4, si une augmentation anormale de pression se produit dans le récipient, le ressort 20 est comprimé et la tige 6, avec l'embout 23, se déplace vers le haut, c'est-à-dire sort progressivement de la coupelle 2.From the rest position, illustrated in FIG. 4, if an abnormal increase in pressure occurs in the container, the spring 20 is compressed and the rod 6, with the end piece 23, moves upwards, c ' that is to say, gradually comes out of the cup 2.

Du fait du rétrécissement du passage 28, le joint 27 vient s'appliquer de manière étanche contre une zone située vers l'extrémité supérieure de ce passage comme illustré sur la figure 6. L'ensemble est prévu pour que, dans cette position, le passage transversal 11 ait franchi la rondelle 12 et débouche à l'atmosphère.Due to the narrowing of the passage 28, the seal 27 is applied in a sealed manner against an area situated towards the upper end of this passage as illustrated in FIG. 6. The assembly is provided so that, in this position, the transverse passage 11 has crossed the washer 12 and opens to the atmosphere.

L'évacuation peut alors se faire uniquement par la prise de gaz additionnelle 4b, les canaux 25 et 8 et le passage 11.The evacuation can then be done only by the additional gas intake 4b , the channels 25 and 8 and the passage 11.

Le passage pour le liquide en provenance du tube plongeur, à travers la tubulure 5, est fermé par le joint 27 et l'embout 23.The passage for the liquid coming from the dip tube, through the tube 5, is closed by the seal 27 and the end piece 23.

Ainsi, seule la phase gazeuse peut s'échapper à l'atmosphère, ce qui tout en évitant l'éclatement comme dans le cas de la valve de la figure 1, présente l'avantage d'éviter la dispersion de la phase liquide à l'extérieur.Thus, only the gas phase can escape to the atmosphere, which while avoiding bursting as in the case of the valve of Figure 1, has the advantage of avoiding the dispersion of the liquid phase at l 'outside.

Quelle que soit la solution adoptée, l'encombrement axial de la valve est réduit par la disposition en parallèle des ressorts. L'indépendance d'action de ces ressorts permet des réglages précis pour leurs niveaux d'intervention.Whichever solution is adopted, the axial size of the valve is reduced by the parallel arrangement of the springs. The independence of action of these springs allows precise adjustments for their intervention levels.

Claims (11)

Valve de distribution pour un récipient contenant un fluide sous pression gazeuse, en particulier pour bidon aérosol, comprenant : - une tige de soupape (6) mobile dans un corps de valve (3), cette tige étant munie axialement de deux canaux borgnes (7, 8) opposés débouchant chacun vers une extrémité de la tige (6) et séparés par un fond (9), deux orifices transversaux (10, 11) étant prévus dans la paroi latérale de la tige de part et d'autre du fond (9), chaque orifice communiquant respectivement avec un canal, le canal éloigné du corps de valve et l'orifice transversal associé (10) constituant un passage de distribution, l'autre canal (8) et l'orifice transversal associé (11) constituant un passage d'évacuation ; - une pièce d'étanchéité (12) maintenue dans le corps de valve et traversée par la tige (6) ; - un premier ressort (13) propre à solliciter la tige (6), relativement au corps de valve (3), dans un sens correspondant à une sortie de la tige ; - et un second ressort (20) disposé de manière à s'opposer à une sortie de la tige (6) tant que la pression à l'intérieur du récipient ne dépasse pas une valeur prédéterminée,    l'ensemble étant tel qu'en enfonçant la tige (6), l'utilisateur provoque la mise en communication du passage de distribution (10, 7) avec l'intérieur du corps de valve et la distribution du produit et, qu'en cas de surpression anormale, le deuxième ressort (20) est comprimé et la tige (6) soulevée, ce qui met à l'atmosphère le passage d'évacuation (8, 11) et permet d'éviter un éclatement du récipient,
   caractérisée par le fait que les deux ressorts (13, 20) sont disposés en parallèle ; qu'une extrémité du premier (13) et du second (20) ressorts est en appui contre un organe (14) arrêté par une butée unilatérale (15) de la tige, cet organe (14) pouvant coulisser relativement à la tige (6), en cas de sortie de cette dernière et que la deuxième extrémité du premier ressort (13) est en appui contre une butée (17) solidaire du corps de valve (3), tandis que la deuxième extrémité du deuxième ressort (20) est en appui contre une butée (21) solidaire de la tige (6).Dispensing valve for a container containing a fluid under gas pressure, in particular for an aerosol can, comprising: - a valve stem (6) movable in a valve body (3), this stem being provided axially with two opposite blind channels (7, 8) each opening towards one end of the stem (6) and separated by a bottom ( 9), two transverse orifices (10, 11) being provided in the lateral wall of the rod on either side of the bottom (9), each orifice communicating respectively with a channel, the channel distant from the valve body and the associated transverse orifice (10) constituting a distribution passage, the other channel (8) and the associated transverse orifice (11) constituting a discharge passage; - a sealing part (12) held in the valve body and traversed by the rod (6); - A first spring (13) adapted to urge the rod (6), relative to the valve body (3), in a direction corresponding to an exit from the rod; - and a second spring (20) arranged so as to oppose an exit from the rod (6) as long as the pressure inside the container does not exceed a predetermined value, the assembly being such that by pushing in the rod (6), the user causes the distribution passage (10, 7) to communicate with the inside of the valve body and the product distribution and, that in the event of abnormal overpressure, the second spring (20) is compressed and the rod (6) raised, which puts the evacuation passage (8, 11) into the atmosphere and makes it possible to prevent the container from bursting,
characterized in that the two springs (13, 20) are arranged in parallel; that one end of the first (13) and the second (20) springs is in abutment against a member (14) stopped by a unilateral stop (15) of the rod, this member (14) being able to slide relative to the rod (6), in the event of its exit and that the second end of the first spring (13) bears against a stop (17) secured to the valve body (3), while the second end of the second spring (20) is pressed against a stop (21) secured to the rod (6). Valve selon la revendication 1, caractérisée par le fait que le premier et le deuxième ressorts (13, 20) sont des ressorts en hélice disposés concentriquement.Valve according to claim 1, characterized in that the first and second springs (13, 20) are helical springs arranged concentrically. Valve selon la revendication 2, caractérisée par le fait que le premier ressort (13) qui intervient lors de la distribution est extérieur au second (20) et sa longueur est supérieure à celle du deuxième ressort (20), lequel intervient pour l'évacuation en cas de surpression anormale.Valve according to claim 2, characterized in that the first spring (13) which intervenes during dispensing is external to the second (20) and its length is greater than that of the second spring (20), which intervenes for evacuation in case of abnormal overpressure. Valve selon l'une des revendications précédentes, caractérisée par le fait que l'organe d'appui (14) est constitué par une rondelle rigide comportant un épaulement radial (16) en saillie vers l'intérieur sur son diamètre intérieur et propre à coopérer avec un épaulement radial extérieur (15) de la tige.Valve according to one of the preceding claims, characterized in that the support member (14) consists of a rigid washer comprising a radial shoulder (16) projecting inwardly on its internal diameter and suitable for cooperating with an external radial shoulder (15) of the rod. Valve selon l'une des revendications précédentes, caractérisée par le fait que la disposition des orifices transversaux (10, 11) de la tige est telle que, lorsque la tige (6) est au repos, l'orifice transversal (11) débouchant dans le canal d'évacuation (8) se trouve du même côté de la pièce d'étanchéité (12) que le corps de valve (3), tandis que l'autre orifice transversal (10), du canal de distribution est fermé extérieurement par ladite pièce d'étanchéité (12).Valve according to one of the preceding claims, characterized in that the arrangement of the transverse orifices (10, 11) of the rod is such that, when the rod (6) is at rest, the transverse orifice (11) opening out into the discharge channel (8) is on the same side of the sealing part (12) as the valve body (3), while the other transverse orifice (10) of the distribution channel is closed externally by said sealing part (12). Valve selon l'une des revendications précédentes, caractérisée par le fait que la pièce d'étanchéité (12) est constituée par une rondelle en matière élastomère, serrée au voisinage de sa périphérie extérieure entre le bord supérieur (3b) du corps de valve et une coupelle (2) prévue à la partie supérieure du récipient.Valve according to one of the preceding claims, characterized in that the sealing part (12) consists of a washer of elastomeric material, clamped in the vicinity of its outer periphery between the upper edge ( 3b ) of the valve body and a cup (2) provided at the top of the container. Valve selon l'une des revendications précédentes, caractérisée par le fait que la butée (17) solidaire du corps de valve (3), servant d'appui au premier ressort (13), est constituée par un épaulement faisant saillie radialement vers l'intérieur du corps de valve.Valve according to one of the preceding claims, characterized in that the stop (17) integral with the valve body (3), serving as support for the first spring (13), consists of a shoulder projecting radially towards the inside the valve body. Valve selon l'une des revendications précédentes, caractérisée par le fait que la partie inférieure (22) de la tige (6) de valve est agencée pour fermer la communication entre une tubulure (5) de raccordement à un tube plongeur et le passage d'évacuation (8, 11) lorsque la tige est soulevée par suite d'une surpression interne du bidon, une prise de gaz additionnelle (4b) étant prévue dans le corps de valve (3) au-dessus de la zone d'étanchéité entre la tige de valve (6) et le corps (3) pour maintenir le passage d'évacuation (8, 11) en liaison avec la partie supérieure du récipient et pour permettre l'évacuation du gaz seul.Valve according to one of the preceding claims, characterized in that the lower part (22) of the valve stem (6) is arranged to close the communication between a tube (5) connecting to a dip tube and the passage of evacuation (8, 11) when the rod is raised as a result of an internal overpressure of the container, an additional gas intake ( 4b ) being provided in the valve body (3) above the sealing zone between the valve stem (6) and the body (3) to maintain the discharge passage (8, 11) in connection with the upper part of the container and to allow the evacuation of the gas alone. Valve selon la revendication 8, caractérisée par le fait que la tige de valve (6) est munie d'une bague d'étanchéité torique (27) tandis qu'un passage tronconique (28) dont le diamètre diminue suivant le sens de sortie de la tige est prévu dans le corps de valve, l'extrémité de la tige munie de la bague torique se déplaçant dans ce passage qu'elle vient fermer, en partie haute, lorsque la tige (6) est soulevée, le canal borgne (8) de la tige tourné vers le corps de valve communiquant latéralement avec le volume intérieur du corps de valve.Valve according to claim 8, characterized in that the valve stem (6) is provided with an O-ring seal (27) while a frustoconical passage (28) whose diameter decreases according to the direction of exit from the rod is provided in the valve body, the end of the rod provided with the O-ring moving in this passage which it comes to close, in the upper part, when the rod (6) is raised, the blind channel (8 ) from the stem turned towards the communicating valve body laterally with the interior volume of the valve body. Valve selon la revendication 9, caractérisée par le fait que l'extrémité de la tige est constituée par une pièce rapportée (23) comportant un canal transversal (25), fixée sur la partie de la tige où débouche le canal borgne (8), l'épaulement radial constitué par la surépaisseur de cette pièce rapportée sur la tige constituant la butée pour le deuxième ressort (20) qui intervient en cas d'évacuation.Valve according to claim 9, characterized in that the end of the rod consists of an insert (23) comprising a transverse channel (25), fixed on the part of the rod where the blind channel (8) opens, the radial shoulder formed by the extra thickness of this piece attached to the rod constituting the stop for the second spring (20) which intervenes in the event of evacuation. Récipient contenant un fluide sous pression gazeuse, en particulier bidon aérosol, équipé d'une valve de distribution selon l'une des revendications précédentes.Container containing a fluid under gas pressure, in particular aerosol can, equipped with a dispensing valve according to one of the preceding claims.
EP91402481A 1990-11-09 1991-09-18 Dispensing valve for a container with a fluid under pressure of a gas, and container equipped with such a valve Expired - Lifetime EP0485244B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9013916 1990-11-09
FR9013916A FR2669094B1 (en) 1990-11-09 1990-11-09 DISTRIBUTION VALVE FOR A CONTAINER CONTAINING A GAS PRESSURE FLUID AND CONTAINER PROVIDED WITH SUCH A VALVE.

Publications (2)

Publication Number Publication Date
EP0485244A1 true EP0485244A1 (en) 1992-05-13
EP0485244B1 EP0485244B1 (en) 1995-03-15

Family

ID=9402019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402481A Expired - Lifetime EP0485244B1 (en) 1990-11-09 1991-09-18 Dispensing valve for a container with a fluid under pressure of a gas, and container equipped with such a valve

Country Status (7)

Country Link
US (1) US5183189A (en)
EP (1) EP0485244B1 (en)
JP (1) JP2995510B2 (en)
CA (1) CA2054892A1 (en)
DE (1) DE69108174T2 (en)
ES (1) ES2069847T3 (en)
FR (1) FR2669094B1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572784U (en) * 1992-03-10 1993-10-05 株式会社三谷バルブ Valve for aerosol container
US6126016A (en) 1995-02-28 2000-10-03 Graham; Neil Deryck Bray Screening device and apparatus including same
DE19632777A1 (en) * 1996-08-14 1998-02-19 Wella Ag Containers for pressurized liquids
DE19647445A1 (en) * 1996-11-16 1998-05-20 Wella Ag Two-channel spray head
US5918782A (en) * 1997-03-06 1999-07-06 Hayes Products, Llc Pump assembly with sprayer
US5810211A (en) * 1997-03-06 1998-09-22 Hayes Products, Llc Pump assembly with sliding plug
US5816447A (en) * 1997-03-06 1998-10-06 Hayes Products, Llc Non-aerosol pump spray apparatus
US6089414A (en) * 1997-03-06 2000-07-18 Hayes Products, Llc Pump assembly with one piece piston
USD418201S (en) * 1997-08-27 1999-12-28 Hayes Products, Llc Bottle, pump and sprayer assembly
USD417618S (en) * 1997-08-28 1999-12-14 Hayes Products, Llc Pump assembly
JPH11267558A (en) 1998-03-20 1999-10-05 Unisia Jecs Corp Gas jetting valve
DE19906576B4 (en) * 1999-02-17 2007-08-02 Wella Ag aerosol container
US6360922B1 (en) 1999-04-27 2002-03-26 Hayes Products, Llc Pump assembly with pressure release capability
GB9918626D0 (en) * 1999-08-07 1999-10-13 Glaxo Group Ltd Valve
US6880733B2 (en) * 2001-04-11 2005-04-19 Jin-Ha Park Aerosol valve assembly and aerosol vessel
US6953133B2 (en) * 2002-04-02 2005-10-11 Hayes Products, Inc. Pump assembly with continuous tube
KR20030089042A (en) * 2002-05-15 2003-11-21 박진하 Over pressure safety apparatus of aerosol cans
KR100515120B1 (en) * 2003-02-04 2005-09-15 장준혁 Over pressure safety apparatus of gas fuel cans
US7427004B2 (en) * 2003-10-20 2008-09-23 Meadwestvaco Calmar, Inc. Hand held pressurized sprayer
US7077171B2 (en) * 2004-05-21 2006-07-18 Interdynamics, Inc. Controlled leakage container and method
DE102008026322A1 (en) * 2008-05-30 2009-12-10 Lindal Dispenser Gmbh Valve for a pressurized gas container
EP2349863B1 (en) * 2008-10-23 2014-12-17 The Procter and Gamble Company Valve and dispenser comprising same
US8152030B2 (en) 2009-07-24 2012-04-10 Coroneos Donald L Valve wrench assembly kit for restoring purposed function to a compromised aerosol container
US20110017780A1 (en) * 2009-07-24 2011-01-27 Coroneos Donald L Valve assembly, repair kit, and method for salvaging an aerosol container
US10113780B2 (en) 2011-11-14 2018-10-30 The Armor All/Stp Products Company Refrigerant charging assemblies and methods of use
US8523023B1 (en) 2012-07-02 2013-09-03 Donald L. Coroneos Aerosol container resuscitator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB918147A (en) * 1959-10-28 1963-02-13 Otto Bernz Co Inc Combination dispensing and excess pressure relief valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081919A (en) * 1959-04-03 1963-03-19 Gulf Research Development Co Combination dispensing and excess pressure relief valve
US3180374A (en) * 1961-08-31 1965-04-27 Acme Air Appliance Co Inc Combined filling and dispensing valve for containers for compressed fluids
US3519172A (en) * 1968-03-01 1970-07-07 Sterigard Corp Fluid dispenser
US3666148A (en) * 1969-10-13 1972-05-30 Gillette Co Aerosol valve with safety relief device
FR2059787A5 (en) * 1970-05-21 1971-06-04 Sterigard Corp
US3664557A (en) * 1970-11-13 1972-05-23 Sterigard Corp Bistable safety dispensing valve for fluid dispensers
US3870203A (en) * 1974-05-17 1975-03-11 Continental Can Co Aerosol dispensing valve
US4030644A (en) * 1976-02-26 1977-06-21 John Joseph Creighton Non-return safety valve assembly and pressure pack incorporating same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB918147A (en) * 1959-10-28 1963-02-13 Otto Bernz Co Inc Combination dispensing and excess pressure relief valve

Also Published As

Publication number Publication date
US5183189A (en) 1993-02-02
DE69108174T2 (en) 1995-11-09
FR2669094A1 (en) 1992-05-15
CA2054892A1 (en) 1992-05-10
JPH04279479A (en) 1992-10-05
ES2069847T3 (en) 1995-05-16
EP0485244B1 (en) 1995-03-15
FR2669094B1 (en) 1993-02-12
DE69108174D1 (en) 1995-04-20
JP2995510B2 (en) 1999-12-27

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