EP0751083B1 - Aerosol spray valve and aerosol container provided with such a valve - Google Patents

Aerosol spray valve and aerosol container provided with such a valve Download PDF

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Publication number
EP0751083B1
EP0751083B1 EP19960401438 EP96401438A EP0751083B1 EP 0751083 B1 EP0751083 B1 EP 0751083B1 EP 19960401438 EP19960401438 EP 19960401438 EP 96401438 A EP96401438 A EP 96401438A EP 0751083 B1 EP0751083 B1 EP 0751083B1
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EP
European Patent Office
Prior art keywords
valve
control rod
channels
valve according
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19960401438
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German (de)
French (fr)
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EP0751083A1 (en
Inventor
Pierre André Lasserre
Frank Lacout
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LOreal SA
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LOreal SA
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Publication date
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Publication of EP0751083B1 publication Critical patent/EP0751083B1/en
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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
    • B65D83/34—Cleaning or preventing clogging of the discharge passage
    • 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
    • B65D83/60—Contents and propellant separated
    • B65D83/66—Contents and propellant separated first separated, but finally mixed, e.g. in a dispensing head

Definitions

  • the present invention relates to a valve for a sprayer comprising a container capable of containing at least one product to be packaged and to dispense and a propellant, the valve comprising a rod axially movable control in a valve body between a position of closing the valve and an open position thereof, the stem comprising channels respectively intended for the transport of gas propellant and product to a spray nozzle, these channels each opening at one end outside the stem portion engaged in the valve body.
  • the control rod slides through two seals respectively intended to insulate said channels in said valve closed position.
  • valves of this type in which the channels abovementioned open outside the portion of rod engaged in the valve body by radially oriented orifices closed by the thickness of the seals when the control rod is in its valve closing position.
  • a disadvantage of these known valves is the driving stroke of the relatively large control rod which is necessary to clear said holes and reach the position valve opening.
  • valve of the recalled type higher in which one of the channels opens radially and the other axially In addition to the control rod, the valve has two components movable flow restrictors inside the valve body, comprising each a crown pinching the same seal in position valve closing. This seal is deformed in bending at start of the driving rod push-in stroke.
  • a disadvantage of this valve is its complexity.
  • the object of the present invention is to provide a valve of the type aforementioned which can open at the end of a driving stroke of the rod less order than that of known valves.
  • valve as defined in the claim 1, in which the channels open out, when said rod is in said closed position, through orifices axially oriented and respectively bordered by crowns capable of apply against associated front faces of seals to isolate said channels from the interior of the container.
  • the invention advantageously allows, by playing on the way in which said crowns are shaped, to act on the degree of depression of these in the joints so that they can close sequentially said ports and isolate the gas transport channel last propellant towards the nozzle, in order to carry out a purging of the latter.
  • the invention also relates to a sprayer equipped a valve as mentioned above.
  • FIG. 1 shows a valve 1 conforming to a first embodiment of the invention.
  • This valve 1 comprises a valve body 2 and a control rod 3 slidably mounted at inside the valve body 2 between a closed position, corresponding to Figure 1, and an open position (not shown).
  • a spring 4 is housed in the valve body 2 for return the control rod 3 upwards to the position valve closing.
  • the control rod 3 is capped with a head sprayer or push button 5 fitted with a spray nozzle 6.
  • the valve body 2 has a boss at its upper end external annular 7 for its retention by crimping in a housing 8a a cup 8 to be fixed on a container not shown, suitable for contain a liquid product to be packaged and dispensed and a gas propellant.
  • the cup 8 is crimped on a container not shown in its periphery at 8a with interposition of a sealing washer 33, of in a manner known per se.
  • the product is contained in a pocket flexible and the propellant is contained in the container the outside of the pocket.
  • the inside of the pocket communicates with inside the valve body 2 by a flexible tube not shown, press fitted onto a nozzle 9 extending the body below valve 2 and fitted with an anchoring cone 10.
  • the use of a pocket flexible to contain the product allows to use as propellant compressed air. Pocket protects product from contact with air so that it can be stored inside the container in good conditions and is only mixed with the propellant gas time of his expulsion. Without departing from the scope of the invention, add to the propellant a substance capable of being preserved at his contact.
  • a seal or sealing washer 11 is arranged in the bottom of housing 8a and the valve body 2 is applied by its edge upper end 14 against the lower front face lla of said sealing washer 11.
  • the control rod 3 is formed at its upper part of a internal part 3a cylindrical of revolution and a coaxial sleeve 12 in part 3a.
  • the sleeve 12 is internally fluted as shown in Figure 2.
  • the ribs 12a formed between two grooves consecutive serve as spacers to position the sleeve 12 on the control rod 3.
  • the sleeve 12 is integral with the push button 5 in the example described and it passes through the bottom wall of the housing 8a of the cup 8 by means of a bore 8b and slides so sealed in the opening 13 of the sealing washer 11.
  • the control rod has an enlarged lower part 3b, solid with part 3a and able to move in the body valve 2.
  • Part 3b has over a part of its length a cylindrical outer surface 15 of revolution about the X axis.
  • crown 16 radially protruding from the surface cylindrical 15 at the lower end of the part 3b. This crown 16 is centered on the X axis, tapered upwards and has, in section in an axial section plane, a shape triangular as shown in figure 1.
  • Crown 16 provides a ring clearance with body 2 allowing a passage of product from inside the end piece 9 to its tapered edge 17.
  • the latter applies, when the control rod 3 is at rest, on an annular seal 18.
  • the latter has, in the example described, a square section and applies from tightly sealed by its radially outermost surface on the internal surface of the valve body 2 and by its radially surface the more internal on the cylindrical surface 15.
  • a ring 19 forming spacer is inserted axially between the face of the seal 18 opposite to the crown 16 and the sealing washer 11.
  • the internal upper part 3a of the control rod 3 is connects to the lower part 3b by forming a shoulder 20 extending perpendicular to the X axis, terminated at its periphery by an annular ring 21 centered on the X axis, tapered upwards and having in section in a section plane containing the X axis a triangular shape as shown in Figure 1.
  • the annular ring 21 applies by its tapered edge to the sealing washer 11.
  • the control rod 3 is traversed, on almost all of its length, by a blind bore 22 opening at the end upper part 3a and centered on the X axis.
  • the bottom of this bore 22 communicates through a recess 23 extending radially with an annular space 24 formed between the cylindrical surface 15 and the tapered part of the crown 16.
  • This annular space 24 constitutes a orifice, axially oriented, through which the conveying channel of the product opens to the outside of the control rod portion engaged in the valve body.
  • the lower end edge of the control rod 3 is hollowed out at 25 to accommodate a plate 26 serving as a guide at the upper end of the spring 4.
  • the recess radial 23 extends in contact with the plate 26.
  • An annular boss 27 protrudes from the bottom wall of the valve body 2 to serve guide at the lower end of the spring 4.
  • the upper internal part 3a of the control rod 3 defines with the sleeve 12 a plurality of channels 28 extending parallel to the X axis, communicating at their upper end with a conduit 29 opening onto the nozzle 6 and at their lower end, by radial holes 30, with an annular space 31 formed between the external surface of part 3a and the crown 21.
  • the space annular 31 constitutes an orifice, axially oriented, through which the propellant gas delivery channels open to the outside of the portion of control rod 3 engaged in the valve body.
  • the blind bore 22 opens at its upper end on a conduit 32 communicating with nozzle 6.
  • Conduits 29 and 32 jointly feed a discharge port 6a of the nozzle 6 for spray a mixture of product and propellant in the form of a aerosol in the direction of a Z axis perpendicular to the X axis.
  • a recess 35 is formed in the boss 7 of the valve body 2 for the passage of propellant gas through the valve body.
  • a recess 36 corresponding is formed in the ring portion 19 adjacent to the recess 35 and allows the propellant having passed through the valve body through the recess 35 to reach the crown 21.
  • valve 1 The operation of valve 1 is as follows.
  • crowns 16 and 21 rest respectively against the annular seals 18 and 11 and isolate the annular chambers 24 and 31 from the interior of the container.
  • the sleeve 12 presses by its lower end edge on the shoulder 20 and presses the part 3b of the control rod 3 into the valve body.
  • the sleeve 12 and the part 3b slide through the seals 18 and 11 without causing movement of the latter which allows precisely define the degree of penetration of the rod leading to supplying the annular chambers 24 and 31 with product and gas propellant.
  • seals 18 and 11 By varying the hardness of seals 18 and 11, it is possible to distribute product and gas sequentially propellant when opening and closing the valve. More precisely, using an annular seal 18 made of a material of less hardness than that in which the washer 11 is made, the tapered edge of the crown 16, when the control rod is pressed, ceases to rest last on the gasket 18. This allows, advantageously, to carry out a purge with propellant gas the discharge orifice 6a of the nozzle, and to avoid that otherwise of the product, when drying, does not close it.
  • FIG. 3 shows a valve 101 conforming to a second embodiment of the invention.
  • This achievement differs from the previous one in that the valve body 102 is not no longer constituted by a single piece but by the assembly of a part upper 102a and lower 102b, and by the fact that the control rod is formed by assembling a part radially inner 103a and a radially outer portion 103b.
  • the part 103a is traversed axially by a blind bore 122 identical to the hole 22 previously described.
  • Crowns 116 and 121 respectively identical to crowns 16 and 21 previously described, came from the material with the part 103b which is presented in the example described in the form of a ring fitted on the part 103a.
  • the plate serving as a guide for the spring 4 is in this realization of material with part 103a and defines a shoulder 37 on which the part 103b bears axially on the end of its fitting on part 103a.
  • the upper part of the part 103a corresponds substantially to the production in a single part of the sleeve 12 and of part 3a of the previous embodiment.
  • An annular recess 128 runs axially through the part 103a from the upper end edge thereof to the holes radial 130 by which it communicates with an annular space 31 identical to that of the previous embodiment.
  • FIG. 4 the absence of radial ribs in the annular recess 128.
  • the spacer ring 19 is replaced in the example described by an annular rib 119 coming from material with the part 102a and forming radially protruding on the internal surface thereof.
  • the upper part 102a is perforated as before, in 35, for the passage of propellant gas.
  • the parts 102a and 102b of the valve body 102 are assembled after having successively introduced into part 102a the seal ring 18 and the control rod. How valve 101 works is identical to the operation of the valve 1 previously described.
  • FIG. 5 shows a valve 201 conforming to a third embodiment of the invention.
  • This valve 201 differs from the valve previously described with reference to Figure 1 by the fact that the valve body is made in two parts 102a, 102b identical to those of the valve body described with reference to the Figure 3 and the fact that the holes 30 are oriented obliquely to the top.
  • FIG. 7 shows a valve 301 conforming to a fourth embodiment of the invention.
  • Valve 301 differs of the valve 101 previously described by the fact that the valve body is in one piece, identical to the valve body 2 of the embodiment described with reference to Figure 1.
  • a ring forming a spacer 19 is therefore used to axially position the annular seal 18 in the valve body.
  • FIG. 9 shows a valve 401 conforming to a fifth embodiment of the invention.
  • the control rod is identical, except the length of the sleeve 12 and that of the part upper 3a, than that described with reference to FIG. 1.
  • the valve 401 differs from the valve previously described with reference to the figure 1 by the fact that the valve body has an upper part 402a and a separate lower part 402b, separated by a seal annular seal 418.
  • the lower part 402b is provided on its outer periphery, at its upper end, of an annular boss 407 and the stack formed by the sealing washer 11, the upper part 402a, the annular seal 418 and the annular boss 407 is retained by crimping in a housing of the cup 8 as shown in Figure 9.
  • the seal 418 has a axial section of rectangular shape with large perpendicular sides to the X axis and it is perforated at its periphery, in 440, for the passage of propellant gas.
  • the annular boss 407 is hollowed out in line with the opening 440, in 441, to allow a passage of propellant gas from inside the container to an annular chamber 442 surrounding the crown 21.
  • the part 402a is in the form an internally stepped ring, having in axial section the shape general of a U, as shown in figure 9. Part 402a applies by a lower front face 443 on the front face upper part of joint 418.
  • the base of part 402a is hollowed out radially at 444 to allow the delivery of the propellant passing through joint 418, through the opening 440, towards the chamber 442.
  • An annular clearance 445 is formed between the radially internal edge from the base of the upper part 402a and the cylindrical surface 15 control rod 3.

Description

La présente invention se rapporte à une valve pour pulvérisateur comprenant un récipient apte à contenir au moins un produit à conditionner et à distribuer et un gaz propulseur, la valve comprenant une tige de commande mobile axialement dans un corps de valve entre une position de fermeture de la valve et une position d'ouverture de celle-ci, la tige comprenant des canaux respectivement destinés à l'acheminement du gaz propulseur et du produit vers une buse de pulvérisation, ces canaux débouchant chacun à une extrémité à l'extérieur de la portion de tige engagée dans le corps de valve. La tige de commande coulisse au travers de deux joints d'étanchéité respectivement destinés à assurer l'isolement desdits canaux dans ladite position de fermeture de la valve.The present invention relates to a valve for a sprayer comprising a container capable of containing at least one product to be packaged and to dispense and a propellant, the valve comprising a rod axially movable control in a valve body between a position of closing the valve and an open position thereof, the stem comprising channels respectively intended for the transport of gas propellant and product to a spray nozzle, these channels each opening at one end outside the stem portion engaged in the valve body. The control rod slides through two seals respectively intended to insulate said channels in said valve closed position.

On connaít des valves de ce type dans lesquelles les canaux précités débouchent à l'extérieur de la portion de tige engagée dans le corps de valve par des orifices orientés radialement et obturés par l'épaisseur des joints d'étanchéité lorsque la tige de commande est dans sa position de fermeture de la valve. Un inconvénient de ces valves connues est la course d'enfoncement de la tige de commande relativement grande qui est nécessaire pour dégager lesdits orifices et atteindre la position d'ouverture de la valve.We know valves of this type in which the channels abovementioned open outside the portion of rod engaged in the valve body by radially oriented orifices closed by the thickness of the seals when the control rod is in its valve closing position. A disadvantage of these known valves is the driving stroke of the relatively large control rod which is necessary to clear said holes and reach the position valve opening.

On connaít également par US-A-4 405 064 une valve du type rappelé plus haut dans laquelle l'un des canaux débouche radialement et l'autre axialement. Outre la tige de commande, la valve comporte deux organes limiteurs d'écoulement mobiles à l'intérieur du corps de valve, comportant chacun une couronne venant pincer un même joint d'étanchéité en position de fermeture de la valve. Ce joint d'étanchéité est déformé en flexion au début de la course d'enfoncement de la tige de commande. Un inconvénient de cette valve est sa complexité.We also know from US-A-4 405 064 a valve of the recalled type higher in which one of the channels opens radially and the other axially. In addition to the control rod, the valve has two components movable flow restrictors inside the valve body, comprising each a crown pinching the same seal in position valve closing. This seal is deformed in bending at start of the driving rod push-in stroke. A disadvantage of this valve is its complexity.

La présente invention a pour objet de proposer une valve du type précité pouvant s'ouvrir au terme d'une course d'enfoncement de la tige de commande moindre que celle des valves connues.The object of the present invention is to provide a valve of the type aforementioned which can open at the end of a driving stroke of the rod less order than that of known valves.

Elle y parvient par une valve telle que définie dans la revendication 1, dans laquelle les canaux débouchent, lorsque ladite tige est dans ladite position de fermeture, par des orifices orientés axialement et respectivement bordés par des couronnes aptes à s'appliquer contre des faces frontales associées des joints d'étanchéité pour isoler lesdits canaux de l'intérieur du récipient. It achieves this by a valve as defined in the claim 1, in which the channels open out, when said rod is in said closed position, through orifices axially oriented and respectively bordered by crowns capable of apply against associated front faces of seals to isolate said channels from the interior of the container.

L'invention permet avantageusement, en jouant sur la manière dont lesdites couronnes sont conformées, d'agir sur le degré d'enfoncement de ces dernières dans les joints de façon à pouvoir fermer séquentiellement lesdits orifices et isoler en dernier le canal d'acheminement du gaz propulseur vers la buse, en vue de réaliser une purge de cette dernière. The invention advantageously allows, by playing on the way in which said crowns are shaped, to act on the degree of depression of these in the joints so that they can close sequentially said ports and isolate the gas transport channel last propellant towards the nozzle, in order to carry out a purging of the latter.

En variante, ou additionnellement, on peut jouer sur la dureté des joints d'étanchéité pour réaliser la fermeture séquentielle desdits orifices et la purge de la buse.Alternatively, or additionally, one can play on the hardness seals for sequential closure of said orifices and the purge of the nozzle.

L'invention a également pour objet un pulvérisateur équipé d'une valve telle que précitée.The invention also relates to a sprayer equipped a valve as mentioned above.

D'autres caractéristiques et avantages de la présente invention apparaítront à la lecture de la description détaillée qui va suivre, d'exemples de réalisation non limitatifs de l'invention, et à l'examen du dessin annexé sur lequel :

  • la figure 1 est une coupe axiale, schématique, d'une valve conforme à un premier exemple de réalisation de l'invention,
  • la figure 2 est une section selon le trait de coupe II-II de la figure 1,
  • la figure 3 est une coupe axiale, schématique, d'une valve conforme à un deuxième exemple de réalisation de l'invention,
  • la figure 4 est une section selon le trait de coupe IV-IV de la figure 3,
  • la figure 5 est une coupe axiale, schématique, d'une valve conforme à un troisième exemple de réalisation de l'invention,
  • la figure 6 est une section selon le trait de coupe VI-VI de la figure 5,
  • la figure 7 est une coupe axiale, schématique, d'une valve conforme à un quatrième exemple de réalisation de l'invention,
  • la figure 8 est une section selon le trait de coupe VIII-VIII de la figure 7,
  • la figure 9 est une coupe axiale, schématique, d'une valve conforme à un cinquième exemple de réalisation de l'invention et,
  • la figure 10 est une section selon le trait de coupe X-X de la figure 9.
Other characteristics and advantages of the present invention will appear on reading the detailed description which follows, of nonlimiting exemplary embodiments of the invention, and on examining the appended drawing in which:
  • FIG. 1 is a schematic axial section of a valve according to a first embodiment of the invention,
  • FIG. 2 is a section along the section line II-II in FIG. 1,
  • FIG. 3 is a schematic axial section of a valve according to a second embodiment of the invention,
  • FIG. 4 is a section along the section line IV-IV of FIG. 3,
  • FIG. 5 is a schematic axial section of a valve according to a third embodiment of the invention,
  • FIG. 6 is a section along the section line VI-VI of FIG. 5,
  • FIG. 7 is a schematic axial section of a valve according to a fourth embodiment of the invention,
  • FIG. 8 is a section along the section line VIII-VIII of FIG. 7,
  • FIG. 9 is a schematic axial section of a valve according to a fifth embodiment of the invention and,
  • FIG. 10 is a section along the section line XX of FIG. 9.

On a représenté sur la figure 1 une valve 1 conforme à un premier exemple de réalisation de l'invention. Cette valve 1 comporte un corps de valve 2 et une tige de commande 3 montée à coulissement à l'intérieur du corps de valve 2 entre une position de fermeture, correspondant à la figure 1, et une position d'ouverture (non représentée). Un ressort 4 est logé dans le corps de valve 2 pour rappeler la tige de commande 3 vers le haut dans la position de fermeture de la valve. La tige de commande 3 est coiffée d'une tête de pulvérisateur ou bouton poussoir 5 muni d'une buse de pulvérisation 6. Le corps de valve 2 présente à son extrémité supérieure un bossage annulaire externe 7 pour sa retenue par sertissage dans un logement 8a d'une coupelle 8 à fixer sur un récipient non représenté, apte à contenir un produit liquide à conditionner et à distribuer et un gaz propulseur.FIG. 1 shows a valve 1 conforming to a first embodiment of the invention. This valve 1 comprises a valve body 2 and a control rod 3 slidably mounted at inside the valve body 2 between a closed position, corresponding to Figure 1, and an open position (not shown). A spring 4 is housed in the valve body 2 for return the control rod 3 upwards to the position valve closing. The control rod 3 is capped with a head sprayer or push button 5 fitted with a spray nozzle 6. The valve body 2 has a boss at its upper end external annular 7 for its retention by crimping in a housing 8a a cup 8 to be fixed on a container not shown, suitable for contain a liquid product to be packaged and dispensed and a gas propellant.

La coupelle 8 est sertie sur un récipient non représenté à sa périphérie en 8a avec interposition d'une rondelle d'étanchéité 33, de façon connue en soi.The cup 8 is crimped on a container not shown in its periphery at 8a with interposition of a sealing washer 33, of in a manner known per se.

Dans l'exemple décrit, le produit est contenu dans une poche flexible et le gaz propulseur est contenu dans le récipient à l'extérieur de la poche. L'intérieur de la poche communique avec l'intérieur du corps de valve 2 par un tube souple non représenté, emmanché à force sur un embout 9 prolongeant inférieurement le corps de valve 2 et muni d'un cône d'ancrage 10. L'utilisation d'une poche souple pour contenir le produit permet d'utiliser comme gaz propulseur de l'air comprimé. La poche protège le produit du contact avec l'air de sorte que celui-ci peut se conserver à l'intérieur du récipient dans de bonnes conditions et n'est mélangé au gaz propulseur qu'au moment de son expulsion. On peut, sans sortir du cadre de l'invention, adjoindre au gaz propulseur une substance capable de se conserver à son contact.In the example described, the product is contained in a pocket flexible and the propellant is contained in the container the outside of the pocket. The inside of the pocket communicates with inside the valve body 2 by a flexible tube not shown, press fitted onto a nozzle 9 extending the body below valve 2 and fitted with an anchoring cone 10. The use of a pocket flexible to contain the product allows to use as propellant compressed air. Pocket protects product from contact with air so that it can be stored inside the container in good conditions and is only mixed with the propellant gas time of his expulsion. Without departing from the scope of the invention, add to the propellant a substance capable of being preserved at his contact.

Un joint ou rondelle d'étanchéité 11 est disposé dans le fond du logement 8a et le corps de valve 2 s'applique par sa tranche d'extrémité supérieure 14 contre la face frontale inférieure lla de ladite rondelle d'étanchéité 11.A seal or sealing washer 11 is arranged in the bottom of housing 8a and the valve body 2 is applied by its edge upper end 14 against the lower front face lla of said sealing washer 11.

La tige de commande 3 est formée à sa partie supérieure d'une partie interne 3a cylindrique de révolution et d'un manchon 12 coaxial à la partie 3a.The control rod 3 is formed at its upper part of a internal part 3a cylindrical of revolution and a coaxial sleeve 12 in part 3a.

Le manchon 12 est cannelé intérieurement comme représenté sur la figure 2. Les nervures 12a formées entre deux cannelures consécutives servent d'entretoises pour positionner le manchon 12 sur la tige de commande 3. Le manchon 12 est solidaire du bouton poussoir 5 dans l'exemple décrit et il traverse la paroi de fond du logement 8a de la coupelle 8 à la faveur d'un perçage 8b et coulisse de façon étanche dans l'ouverture 13 de la rondelle d'étanchéité 11. The sleeve 12 is internally fluted as shown in Figure 2. The ribs 12a formed between two grooves consecutive serve as spacers to position the sleeve 12 on the control rod 3. The sleeve 12 is integral with the push button 5 in the example described and it passes through the bottom wall of the housing 8a of the cup 8 by means of a bore 8b and slides so sealed in the opening 13 of the sealing washer 11.

La tige de commande comporte une partie inférieure élargie 3b, venue de matière avec la partie 3a et apte à se déplacer dans le corps de valve 2. La partie 3b présente sur une partie de sa longueur une surface externe 15 cylindrique de révolution autour de l'axe X. Une couronne 16 forme radialement saillie par rapport à la surface cylindrique 15 à l'extrémité inférieure de la partie 3b. Cette couronne 16 est centrée sur l'axe X, effilée vers le haut et présente, en section dans un plan de coupe axiale, une forme triangulaire comme représenté sur la figure 1.The control rod has an enlarged lower part 3b, solid with part 3a and able to move in the body valve 2. Part 3b has over a part of its length a cylindrical outer surface 15 of revolution about the X axis. crown 16 radially protruding from the surface cylindrical 15 at the lower end of the part 3b. This crown 16 is centered on the X axis, tapered upwards and has, in section in an axial section plane, a shape triangular as shown in figure 1.

La couronne 16 ménage avec le corps 2 un jeu annulaire permettant un passage de produit depuis l'intérieur de l'embout 9 vers son bord effilé 17. Ce dernier s'applique, lorsque la tige de commande 3 est au repos, sur un joint annulaire d'étanchéité 18. Celui-ci présente, dans l'exemple décrit, une section carrée et s'applique de façon étanche par sa surface radialement la plus externe sur la surface interne du corps de valve 2 et par sa surface radialement la plus interne sur la surface cylindrique 15. Une bague 19 formant entretoise s'intercale axialement entre la face du joint 18 opposée à la couronne 16 et la rondelle d'étanchéité 11.Crown 16 provides a ring clearance with body 2 allowing a passage of product from inside the end piece 9 to its tapered edge 17. The latter applies, when the control rod 3 is at rest, on an annular seal 18. The latter has, in the example described, a square section and applies from tightly sealed by its radially outermost surface on the internal surface of the valve body 2 and by its radially surface the more internal on the cylindrical surface 15. A ring 19 forming spacer is inserted axially between the face of the seal 18 opposite to the crown 16 and the sealing washer 11.

La partie supérieure interne 3a de la tige de commande 3 se raccorde sur la partie inférieure 3b en formant un épaulement 20 s'étendant perpendiculairement à l'axe X, terminé à sa périphérie par une couronne annulaire 21 centrée sur l'axe X, effilée vers le haut et présentant en section dans un plan de coupe contenant l'axe X une forme triangulaire comme représenté sur la figure 1. Lorsque la tige de commande 3 est dans sa position de repos, la couronne annulaire 21 s'applique par son bord effilé sur la rondelle d'étanchéité 11.The internal upper part 3a of the control rod 3 is connects to the lower part 3b by forming a shoulder 20 extending perpendicular to the X axis, terminated at its periphery by an annular ring 21 centered on the X axis, tapered upwards and having in section in a section plane containing the X axis a triangular shape as shown in Figure 1. When the stem control 3 is in its rest position, the annular ring 21 applies by its tapered edge to the sealing washer 11.

La tige de commande 3 est parcourue, sur la quasi-totalité de sa longueur, par un perçage borgne 22 débouchant à l'extrémité supérieure de la partie 3a et centré sur l'axe X. Le fond de ce perçage 22 communique par un évidement 23 s'étendant radialement avec un espace annulaire 24 formé entre la surface cylindrique 15 et la partie effilée de la couronne 16. Cet espace annulaire 24 constitue un orifice, orienté axialement, par lequel le canal d'acheminement du produit débouche à l'extérieur de la portion de tige de commande engagée dans le corps de valve. La tranche d'extrémité inférieure de la tige de commande 3 est évidée en 25 pour loger une plaquette 26 servant de guide à l'extrémité supérieure du ressort 4. L'évidement radial 23 s'étend au contact de la plaquette 26. Un bossage annulaire 27 forme saillie sur la paroi de fond du corps de valve 2 pour servir de guide à l'extrémité inférieure du ressort 4.The control rod 3 is traversed, on almost all of its length, by a blind bore 22 opening at the end upper part 3a and centered on the X axis. The bottom of this bore 22 communicates through a recess 23 extending radially with an annular space 24 formed between the cylindrical surface 15 and the tapered part of the crown 16. This annular space 24 constitutes a orifice, axially oriented, through which the conveying channel of the product opens to the outside of the control rod portion engaged in the valve body. The lower end edge of the control rod 3 is hollowed out at 25 to accommodate a plate 26 serving as a guide at the upper end of the spring 4. The recess radial 23 extends in contact with the plate 26. An annular boss 27 protrudes from the bottom wall of the valve body 2 to serve guide at the lower end of the spring 4.

La partie interne supérieure 3a de la tige de commande 3 définit avec le manchon 12 une pluralité de canaux 28 s'étendant parallèlement à l'axe X, communiquant à leur extrémité supérieure avec un conduit 29 débouchant sur la buse 6 et à leur extrémité inférieure, par des perçages radiaux 30, avec un espace annulaire 31 formé entre la surface externe de la partie 3a et la couronne 21. L'espace annulaire 31 constitue un orifice, orienté axialement, par lequel les canaux d'acheminement du gaz propulseur débouchent à l'extérieur de la portion de tige de commande 3 engagée dans le corps de valve.The upper internal part 3a of the control rod 3 defines with the sleeve 12 a plurality of channels 28 extending parallel to the X axis, communicating at their upper end with a conduit 29 opening onto the nozzle 6 and at their lower end, by radial holes 30, with an annular space 31 formed between the external surface of part 3a and the crown 21. The space annular 31 constitutes an orifice, axially oriented, through which the propellant gas delivery channels open to the outside of the portion of control rod 3 engaged in the valve body.

Le perçage borgne 22 débouche à son extrémité supérieure sur un conduit 32 communiquant avec la buse 6. Les conduits 29 et 32 alimentent conjointement un orifice de décharge 6a de la buse 6 pour projeter un mélange de produit et de gaz propulseur sous forme d'un aérosol dans la direction d'un axe Z perpendiculaire à l'axe X.The blind bore 22 opens at its upper end on a conduit 32 communicating with nozzle 6. Conduits 29 and 32 jointly feed a discharge port 6a of the nozzle 6 for spray a mixture of product and propellant in the form of a aerosol in the direction of a Z axis perpendicular to the X axis.

Un évidement 35 est ménagé dans le bossage 7 du corps de valve 2 pour le passage de gaz propulseur à travers le corps de valve. Un évidement 36 correspondant est ménagé dans la portion de bague 19 adjacente à l'évidement 35 et permet au gaz propulseur ayant traversé le corps de valve par l'évidement 35 de gagner la couronne 21.A recess 35 is formed in the boss 7 of the valve body 2 for the passage of propellant gas through the valve body. A recess 36 corresponding is formed in the ring portion 19 adjacent to the recess 35 and allows the propellant having passed through the valve body through the recess 35 to reach the crown 21.

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

Au repos, les bords effilés des couronnes 16 et 21 reposent respectivement contre les joints annulaires d'étanchéité 18 et 11 et isolent les chambres annulaires 24 et 31 de l'intérieur du récipient. Lorsque l'utilisateur presse le dessus 5a du bouton poussoir 5, le manchon 12 appuie par sa tranche d'extrémité inférieure sur l'épaulement 20 et enfonce la partie 3b de la tige de commande 3 dans le corps de valve.At rest, the tapered edges of crowns 16 and 21 rest respectively against the annular seals 18 and 11 and isolate the annular chambers 24 and 31 from the interior of the container. When the user presses the top 5a of the push button 5, the sleeve 12 presses by its lower end edge on the shoulder 20 and presses the part 3b of the control rod 3 into the valve body.

Le manchon 12 et la partie 3b coulissent à travers les joints 18 et 11 sans entraíner en déplacement ces derniers ce qui permet de définir avec précision le degré d'enfoncement de la tige conduisant à l'alimentation des chambres annulaires 24 et 31 en produit et gaz propulseur. The sleeve 12 and the part 3b slide through the seals 18 and 11 without causing movement of the latter which allows precisely define the degree of penetration of the rod leading to supplying the annular chambers 24 and 31 with product and gas propellant.

Lorsque les bords effilés des couronnes 16 et 21 ont cessé de reposer sur les joints d'étanchéité associés, du produit peut s'écouler, sous la pression du gaz propulseur dans le récipient, à l'intérieur 34 du corps de valve, à travers l'intervalle annulaire formé entre la couronne 16 et le joint 18 pour gagner, par l'intermédiaire de l'évidement 23 et du perçage borgne 22, le conduit 32. Du gaz propulseur peut circuler, au travers de l'évidement 35 du corps de valve 2 et 36 de la bague 19 formant entretoise, de l'intervalle annulaire ménagé entre le bord effilé de la couronne 21 et la rondelle d'étanchéité 11, par les perçages 30 et les canaux 28, jusqu'au conduit 29 pour gagner la buse 6.When the tapered edges of crowns 16 and 21 have stopped rest on the associated seals, product may flow, under the pressure of the propellant gas into the container, to inside 34 of the valve body, through the annular gap formed between the crown 16 and the seal 18 to gain, by through the recess 23 and the blind bore 22, the conduit 32. Propellant gas can circulate through the recess 35 of the valve body 2 and 36 of the ring 19 forming a spacer, of the annular interval formed between the tapered edge of the crown 21 and the sealing washer 11, through the holes 30 and the channels 28, to duct 29 to reach nozzle 6.

En jouant sur la dureté des joints 18 et 11, il est possible de réaliser séquentiellement la distribution de produit et de gaz propulseur lors de l'ouverture et de la fermeture de la valve. Plus précisément, en utilisant un joint annulaire 18 réalisé en un matériau de dureté moindre que celui en lequel est réalisée la rondelle 11, le bord effilé de la couronne 16, lorsque la tige de commande est enfoncée, cesse de reposer en dernier sur le joint 18. Ceci permet, avantageusement, de réaliser une purge par du gaz propulseur de l'orifice de décharge 6a de la buse, et d'éviter que sinon du produit, en séchant, n'obture celui-ci.By varying the hardness of seals 18 and 11, it is possible to distribute product and gas sequentially propellant when opening and closing the valve. More precisely, using an annular seal 18 made of a material of less hardness than that in which the washer 11 is made, the tapered edge of the crown 16, when the control rod is pressed, ceases to rest last on the gasket 18. This allows, advantageously, to carry out a purge with propellant gas the discharge orifice 6a of the nozzle, and to avoid that otherwise of the product, when drying, does not close it.

On a représenté sur la figure 3 une valve 101 conforme à un deuxième exemple de réalisation de l'invention. Cette réalisation diffère de la précédente par le fait que le corps de valve 102 n'est plus constitué par une pièce unique mais par l'assemblage d'une partie supérieure 102a et d'une partie inférieure 102b, et par le fait que la tige de commande est formée par l'assemblage d'une partie radialement intérieure 103a et d'une partie radialement extérieure 103b. La partie 103a est parcourue axialement par un perçage borgne 122 identique au perçage 22 précédemment décrit. Des couronnes 116 et 121, respectivement identiques aux couronnes 16 et 21 précédemment décrites, sont venues de matière avec la partie 103b qui se présente dans l'exemple décrit sous la forme d'une bague emmanchée sur la partie 103a. La plaquette servant de guide au ressort 4 est dans cette réalisation venue de matière avec la partie 103a et définit un épaulement 37 sur lequel la partie 103b prend axialement appui au terme de son emmanchement sur la partie 103a. La partie supérieure de la partie 103a correspond sensiblement à la réalisation en une seule pièce du manchon 12 et de la partie 3a de la réalisation précédente. Un évidement annulaire 128 parcourt axialement la partie 103a depuis la tranche d'extrémité supérieure de celle-ci jusqu'à des perçages radiaux 130 par lesquels il communique avec un espace annulaire 31 identique à celui de la réalisation précédente. Dans cette réalisation, on remarquera à l'examen de la figure 4 l'absence de nervures radiales dans l'évidement annulaire 128. On a attribué les mêmes numéros de référence aux éléments communs à cette réalisation et à la réalisation précédente. La bague servant d'entretoise 19 est remplacée dans l'exemple décrit par une nervure annulaire 119 venue de matière avec la partie 102a et formant radialement saillie sur la surface interne de celle-ci. La partie supérieure 102a est ajourée comme précédemment, en 35, pour le passage de gaz propulseur. L'assemblage des parties 102a et 102b du corps de valve 102 s'effectue après avoir introduit dans la partie 102a successivement le joint annulaire 18 et la tige de commande. Le fonctionnement de la valve 101 est identique au fonctionnement de la valve 1 précédemment décrite.FIG. 3 shows a valve 101 conforming to a second embodiment of the invention. This achievement differs from the previous one in that the valve body 102 is not no longer constituted by a single piece but by the assembly of a part upper 102a and lower 102b, and by the fact that the control rod is formed by assembling a part radially inner 103a and a radially outer portion 103b. The part 103a is traversed axially by a blind bore 122 identical to the hole 22 previously described. Crowns 116 and 121, respectively identical to crowns 16 and 21 previously described, came from the material with the part 103b which is presented in the example described in the form of a ring fitted on the part 103a. The plate serving as a guide for the spring 4 is in this realization of material with part 103a and defines a shoulder 37 on which the part 103b bears axially on the end of its fitting on part 103a. The upper part of the part 103a corresponds substantially to the production in a single part of the sleeve 12 and of part 3a of the previous embodiment. An annular recess 128 runs axially through the part 103a from the upper end edge thereof to the holes radial 130 by which it communicates with an annular space 31 identical to that of the previous embodiment. In this realization, it will be noted on examining FIG. 4 the absence of radial ribs in the annular recess 128. The same reference numbers to the elements common to this realization and to the previous realization. The spacer ring 19 is replaced in the example described by an annular rib 119 coming from material with the part 102a and forming radially protruding on the internal surface thereof. The upper part 102a is perforated as before, in 35, for the passage of propellant gas. The parts 102a and 102b of the valve body 102 are assembled after having successively introduced into part 102a the seal ring 18 and the control rod. How valve 101 works is identical to the operation of the valve 1 previously described.

On a représenté sur la figure 5 une valve 201 conforme à un troisième exemple de réalisation de l'invention. Cette valve 201 diffère de la valve précédemment décrite en référence à la figure 1 par le fait que le corps de valve est réalisé en deux parties 102a, 102b identiques à celles du corps de valve décrit en référence à la figure 3 et par le fait que les perçages 30 sont orientés obliquement vers le haut.FIG. 5 shows a valve 201 conforming to a third embodiment of the invention. This valve 201 differs from the valve previously described with reference to Figure 1 by the fact that the valve body is made in two parts 102a, 102b identical to those of the valve body described with reference to the Figure 3 and the fact that the holes 30 are oriented obliquely to the top.

On a représenté sur la figure 7 une valve 301 conforme à un quatrième exemple de réalisation de l'invention. La valve 301 diffère de la valve 101 précédemment décrite par le fait que le corps de valve est d'une seule pièce, identique au corps de valve 2 de la réalisation décrite en référence à la figure 1. Une bague formant entretoise 19 est donc utilisée pour positionner axialement le joint annulaire 18 dans le corps de valve.FIG. 7 shows a valve 301 conforming to a fourth embodiment of the invention. Valve 301 differs of the valve 101 previously described by the fact that the valve body is in one piece, identical to the valve body 2 of the embodiment described with reference to Figure 1. A ring forming a spacer 19 is therefore used to axially position the annular seal 18 in the valve body.

On a représenté sur la figure 9 une valve 401 conforme à un cinquième exemple de réalisation de l'invention. La tige de commande est identique, hormis la longueur du manchon 12 et celle de la partie supérieure 3a, à celle décrite en référence à la figure 1. La valve 401 diffère de la valve précédemment décrite en référence à la figure 1 par le fait que le corps de valve comporte une partie supérieure 402a et une partie inférieure 402b distinctes, séparées par un joint d'étanchéité annulaire 418. La partie inférieure 402b est munie sur sa périphérie externe, à son extrémité supérieure, d'un bossage annulaire 407 et l'empilement constitué par la rondelle d'étanchéité 11, la partie supérieure 402a, le joint annulaire d'étanchéité 418 et le bossage annulaire 407 est retenu par sertissage dans un logement de la coupelle 8 comme représenté sur la figure 9. Le joint 418 présente une section axiale de forme rectangulaire de grands côtés perpendiculaires à l'axe X et il est ajouré à sa périphérie, en 440, pour le passage de gaz propulseur. Le bossage annulaire 407 est évidé à l'aplomb de l'ajour 440, en 441, pour permettre un passage de gaz propulseur depuis l'intérieur du récipient jusque dans une chambre annulaire 442 entourant la couronne 21. La partie 402a se présente sous la forme d'une bague étagée intérieurement, ayant en section axiale la forme générale d'un U, comme représenté sur la figure 9. La partie 402a s'applique par une face frontale inférieure 443 sur la face frontale supérieure du joint 418. La base de la partie 402a est évidée radialement en 444 pour permettre l'acheminement du gaz propulseur traversant le joint 418, à la faveur de l'ajour 440, vers la chambre 442. Un jeu annulaire 445 est formé entre le bord radialement interne de la base de la partie supérieure 402a et la surface cylindrique 15 de la tige de commande 3.FIG. 9 shows a valve 401 conforming to a fifth embodiment of the invention. The control rod is identical, except the length of the sleeve 12 and that of the part upper 3a, than that described with reference to FIG. 1. The valve 401 differs from the valve previously described with reference to the figure 1 by the fact that the valve body has an upper part 402a and a separate lower part 402b, separated by a seal annular seal 418. The lower part 402b is provided on its outer periphery, at its upper end, of an annular boss 407 and the stack formed by the sealing washer 11, the upper part 402a, the annular seal 418 and the annular boss 407 is retained by crimping in a housing of the cup 8 as shown in Figure 9. The seal 418 has a axial section of rectangular shape with large perpendicular sides to the X axis and it is perforated at its periphery, in 440, for the passage of propellant gas. The annular boss 407 is hollowed out in line with the opening 440, in 441, to allow a passage of propellant gas from inside the container to an annular chamber 442 surrounding the crown 21. The part 402a is in the form an internally stepped ring, having in axial section the shape general of a U, as shown in figure 9. Part 402a applies by a lower front face 443 on the front face upper part of joint 418. The base of part 402a is hollowed out radially at 444 to allow the delivery of the propellant passing through joint 418, through the opening 440, towards the chamber 442. An annular clearance 445 is formed between the radially internal edge from the base of the upper part 402a and the cylindrical surface 15 control rod 3.

Bien entendu, on peut apporter diverses modifications aux exemples de réalisation qui viennent d'être décrits sans sortir du cadre de la présente invention.Of course, various modifications can be made to the examples of embodiments which have just been described without departing from the part of the present invention.

Claims (8)

  1. Aerosol spray valve comprising a container suitable for containing at least one product to be packaged and to be dispensed and a propellent gas, this valve comprising a control rod which can move axially in a valve body between a position of closure of the valve and a position of opening of the latter, the rod comprising channels intended, respectively, for conveying the propellent gas and for conveying the product to a spraying nozzle, each of these channels emerging at one end outside the rod portion engaged in the valve body, characterized in that the rod slides through two seals intended, respectively, for isolating the said channels in the said position of closure of the valve, the said channels (22, 28; 122, 128) opening out, when the said rod (3; 103a, 103b) is in the said position of closure, via orifices (24, 31) which are oriented axially and respectively bordered by collars (16, 21; 116, 121) capable of being applied against associated front faces of the seals (18, 11; 418, 11), in order to isolate the said channels from the inside of the container.
  2. Valve according to Claim 1, characterized in that the said collars (16, 21; 116, 121) are shaped so as to penetrate to different depths in the said seals (18, 11; 418, 11) in order, sequentially, to isolate the said orifices.
  3. Valve according to one of Claims 1 and 2, characterized in that the said seals (18, 11; 418, 11) have different hardnesses so as, sequentially, to isolate the said orifices (24, 31).
  4. Valve according to any one of Claims 1 to 3, characterized in that the said collars (16, 21) are made in a single piece with the control rod (3).
  5. Valve according to any one of Claims 1 to 3, characterized in that the said collars (116; 121) are made in a single piece with a ring (102b) slipped over a part (102a) of the control rod.
  6. Valve according to any one of Claims 1 to 5, characterized in that the said collars (16, 21; 116, 121) are centred on the longitudinal axis X of the control rod (3; 103a, 103b) and have a tapered edge.
  7. Valve according to any one of Claims 1 to 6, characterized in that the control rod (3) is formed at its top by the junction of an inner part (3a) and of a sleeve (12) engaged over the said inner part and integral with a push-button (5).
  8. Aerosol spray equipped with a valve according to any one of the preceding claims.
EP19960401438 1995-06-30 1996-06-28 Aerosol spray valve and aerosol container provided with such a valve Expired - Lifetime EP0751083B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9507925 1995-06-30
FR9507925A FR2736039B1 (en) 1995-06-30 1995-06-30 VALVE FOR SPRAYER AND SPRAYER THUS EQUIPPED

Publications (2)

Publication Number Publication Date
EP0751083A1 EP0751083A1 (en) 1997-01-02
EP0751083B1 true EP0751083B1 (en) 2000-02-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960401438 Expired - Lifetime EP0751083B1 (en) 1995-06-30 1996-06-28 Aerosol spray valve and aerosol container provided with such a valve

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EP (1) EP0751083B1 (en)
DE (1) DE69606589T2 (en)
ES (1) ES2143155T3 (en)
FR (1) FR2736039B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024061503A1 (en) * 2022-09-22 2024-03-28 L'oreal Rapid gassing valve for refillable aerosol

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777967B1 (en) * 1998-04-28 2000-06-16 Oreal VALVE ACTIVATION MEMBER, VALVE EQUIPPED WITH THIS MEMBER AND DISTRIBUTION ASSEMBLY PROVIDED WITH THIS VALVE
FR2785594B1 (en) * 1998-11-10 2001-06-01 Oreal VALVE, RECHARGE EQUIPPED WITH SUCH A VALVE, AND DISTRIBUTION ASSEMBLY EQUIPPED WITH SUCH A VALVE
GB2526821B (en) 2014-06-03 2016-04-27 The Salford Valve Company Valve assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693837A (en) * 1970-04-23 1972-09-26 Fluid Chem Co Inc Striped product aerosol dispenser
NL7708212A (en) * 1977-06-20 1978-12-22 Foam Schaumtechnik DOSING VALVE.
US4405064A (en) * 1981-05-26 1983-09-20 Stoody William R Self-cleaning, isolated product, aerosol spray atomizing valve
US4431119A (en) * 1981-11-19 1984-02-14 Stoody William R Self-cleaning, aerosol valve for separate fluids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024061503A1 (en) * 2022-09-22 2024-03-28 L'oreal Rapid gassing valve for refillable aerosol
FR3140076A1 (en) * 2022-09-22 2024-03-29 L'oreal Quick gassing valve for refillable aerosol

Also Published As

Publication number Publication date
FR2736039B1 (en) 1997-08-01
DE69606589D1 (en) 2000-03-16
ES2143155T3 (en) 2000-05-01
EP0751083A1 (en) 1997-01-02
FR2736039A1 (en) 1997-01-03
DE69606589T2 (en) 2000-09-14

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