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EP0931734B1 - Ventil zur Durchflussregelung einer Flüssigkeit und mit solch einem Ventil versehener Behälter - Google Patents

Ventil zur Durchflussregelung einer Flüssigkeit und mit solch einem Ventil versehener Behälter Download PDF

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Publication number
EP0931734B1
EP0931734B1 EP98403289A EP98403289A EP0931734B1 EP 0931734 B1 EP0931734 B1 EP 0931734B1 EP 98403289 A EP98403289 A EP 98403289A EP 98403289 A EP98403289 A EP 98403289A EP 0931734 B1 EP0931734 B1 EP 0931734B1
Authority
EP
European Patent Office
Prior art keywords
valve
regulating chamber
product
outlet
orifice
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
EP98403289A
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English (en)
French (fr)
Other versions
EP0931734A1 (de
Inventor
Jean-François Benoist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0931734A1 publication Critical patent/EP0931734A1/de
Application granted granted Critical
Publication of EP0931734B1 publication Critical patent/EP0931734B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices

Definitions

  • the present invention relates to a valve according to the preamble of claim 1, in particular for an aerosol container, intended to distribute a product, in particular cosmetic, according to a flow substantially constant.
  • the invention is particularly suitable for distribution of deodorants, or styling products, in particular lacquers or foams.
  • the pressure in this part of the valve body is a partial pressure between atmospheric pressure and the pressure inside the container.
  • a pressure depends on the internal pressure of the container, and the pressure losses existing up to the product outlet. Pressure also depends on the product in the container, especially its vapor pressure. So, for each new formula, it is necessary to use a different calibrated spring, which makes the system not very flexible.
  • the means for closing the outlet orifice are not integral with the piston, this which makes the flow regulation obtained less precise.
  • Patent application FR 2 711 973 describes a push button inside which is arranged a regulation system.
  • the disadvantages of such system are mainly of two kinds.
  • the system of regulation occupies a substantial place in the push button, which leaves little freedom in the definition of the feeding of the nozzle outlet or diffusion system and spray mechanism.
  • the means for closing the regulation chamber are, between two uses, in communication with the outside of the container, and therefore with the air, which implies a high risk of "sticking" of the shutter, especially in the case of products with a high resin content.
  • a valve in particular for an aerosol container, comprising inside a valve body: a) a inlet passage in communication with the container and an outlet passage; b) means for, in response to an actuation command, putting the exit passage in communication with the entry passage; c) first elastic return means for biasing the valve in the closed position; and D) means for regulating the output flow rate of the product, comprising second elastic return means for supplying a set pressure for said regulation means, the second elastic return means (14) are isolated from the product, the pressure inside said compartment being equal to the atmospheric pressure, characterized in that the second means elastic return are arranged in a compartment of the valve body.
  • the elastic return means being at atmospheric pressure, the setpoint it imposes is constant, whatever the formula, and whatever or the pressure inside the container.
  • the sealing means associated with the regulation system being located inside the valve body, i.e. isolated from the outside in the valve closed position, it does not produces no phenomenon of sticking or fouling of the regulation, which remains reliable over time.
  • the flow regulation means comprise a regulation chamber, arranged between the inlet passage and the passage of outlet, said control chamber having an inlet port and an orifice outlet, shutter means, mounted on said second means elastic return being provided for, depending on the pressure inside the regulation chamber (in reality, inside the part in which circulates the product), modify the degree of opening of the inlet and / or outlet orifice, said second elastic return means being arranged in a regulation chamber compartment, isolated from the product by a piston mobile, in direct communication with the outside, and therefore maintained at atmospheric pressure.
  • the pressure inside the compartment containing the spring tared remains identical to atmospheric pressure.
  • the movable piston is integral with said first means shutter. This contributes to improving the precision of the regulation in the product outlet flow.
  • the sealing means comprise first means for closing the outlet orifice, consisting of a skirt annular carried by the piston and disposed inside the chamber regulation, and whose position relative to the outlet orifice determines the degree opening of the latter.
  • the annular skirt forms a single piece with the piston, obtainable by molding a thermoplastic material, such than a polyolefin, in particular a polyethylene or a polypropylene.
  • the movable piston is slidably mounted inside the regulation chamber.
  • the seal between the compartment containing the spring calibrated and the compartment forming the actual regulation chamber is improved by means of a flexible membrane arranged inside the body of the regulation chamber, between the piston and the calibrated spring.
  • a such a membrane is overmolded or bi-injected with the body of the regulation. This membrane completes the seal between the two compartments of the regulation chamber, without appreciably affecting the pressing force exerted by the second elastic return means on the piston.
  • stop means are provided for, in the event of overpressure inside the regulation chamber, maintain a flow minimum product output. This allows the product contained in the regulation chamber, until the pressure inside the chamber returns to the level set by the second elastic return means, thus avoiding any phenomenon of blockage of the valve.
  • the sealing means may also include second means shutter, integral with the movable piston for, depending on the pressure at inside the regulation chamber, modify the degree of opening of the orifice of the regulation chamber, said first and second means shutter being arranged so that in the closed position of the inlet orifice, the outlet is at least partially open.
  • second means shutter integral with the movable piston for, depending on the pressure at inside the regulation chamber, modify the degree of opening of the orifice of the regulation chamber, said first and second means shutter being arranged so that in the closed position of the inlet orifice, the outlet is at least partially open.
  • the inlet orifice is arranged in the bottom of the regulation chamber, the outlet orifice being located on a wall side of the control chamber, at a distance d from the bottom of the control chamber regulation, an annular lip ensuring sealing between the regulation and the valve body, all around said regulation chamber, said sealing lip being disposed axially between the bottom of the chamber regulator and outlet.
  • an annular lip can be obtained molding with the regulation chamber.
  • the outlet passage is formed of a rod valve integral with the regulation chamber, said regulation chamber being mounted on said first elastic return means, said rod valve comprising an emerging part outside the valve body, and forming a outlet channel which can be put in communication with the valve body via a passage passing radially through the valve stem.
  • it can be a "female" type valve intended to receive a hollow hollow rod by the valve actuation mechanism.
  • the radial passage is maintained opposite a seal located in the upper part of the valve body.
  • the sealing means seal the outlet orifice of the regulation chamber, so as to interrupt the dispensing of product. This prevents any spraying or diffusion whose characteristics do not would be unsatisfactory due to insufficient outlet pressure.
  • a container is also produced for the pressure distribution of a product, fitted with a valve conforming to the invention.
  • Such a container may comprise a body defining a reservoir containing the product to be dispensed, one end of which is closed by a bottom, the other end being surmounted by said valve, the means for actuating the valve consisting of a push button which may have means of broadcast for product release.
  • a container can be presented in particular in the form of a flexible pocket, possibly placed inside a body rigid, a tube, or a can.
  • the diffusion means consist of a nozzle, in particular vortex, a grid, or a porous tip, in particular a sintered or open cell foam.
  • the product can consist of a styling product, in particular a hairspray, a spray or a mousse, or a deodorant, or a care product, in particular a milk, an oil, a cream or a gel.
  • the container 100 shown in Figure 1 is in the form of a container, for aluminum example, comprising a body 101, one end 102 of which is closed by a bottom 103.
  • the other end 104 is open and is surmounted a valve 1 mounted on a cup 105, set on a rolled edge 106 of the can.
  • the valve 1 is crimped or clipped onto the cup 105.
  • a push button 109 is mounted on the valve so as to allow actuation of the valve 1, and the diffusion of the product via an outlet nozzle 107.
  • a dip tube 108 is connected to valve 1, and descends substantially to the bottom 103 of the container.
  • the valve will be the subject of a detailed description with reference to FIGS. 2A-2C and 3A-3C.
  • the valve 1 comprises mainly a body 2, the bottom 3 of which has an orifice 4 at its center surrounded by an axial chimney 7, arranged outside the valve body 2, and intended to receive a dip tube 108.
  • the end of the valve body opposite the bottom 3, is open.
  • the edge delimiting the opening 5 of the body of valve 2 forms on its outer surface a bead 8 intended for attachment of valve 1 on a valve holder cup 105.
  • Said edge also forms inside the valve body 2, a recess intended to receive a seal seal 6.
  • the seal 6 is of annular shape, and forms in its center a opening, in which is slidably mounted a sealing rod valve 9.
  • the valve stem 9 comprises a first part 10, forming a passage for outlet of the product, in the form of a tubular element, and intended for mounting an actuation and distribution device (not shown), such as a pushbutton.
  • the valve stem 9 also includes a second part emerging 11, isolated from the first and intended for pressurization atmospheric, via an orifice 15, of a compartment 12 of a regulation 13.
  • the orifice 15 is made in the bottom 18 of the valve stem.
  • AT inside the compartment 12 of the regulation chamber 13, is disposed a calibrated spring 14 intended to supply the regulation set point and which will be discussed in more detail later.
  • the first part 10 of the valve stem comprises a passage 17, passing radially through the tubular element.
  • the regulation chamber 13 is formed of a body 20, arranged coaxially inside the valve body 2, of which the upper end is closed by the bottom 18, and the lower end of which is closed by a bottom 21.
  • a movable piston 22 Inside the regulation chamber 13, is slidingly mounted a movable piston 22, sealingly isolating the upper compartment 12, and a lower compartment 23.
  • a spring 14 Inside the compartment 12 is arranged a spring 14 whose, the restoring force urges the movable piston 22 towards the bottom 21.
  • the insulation between the compartment upper 12 and lower compartment 23 is improved by the presence a thin membrane 24, in particular made of elastomeric material, and the peripheral edge is integral with the inner wall of the body of the chamber regulation.
  • the piston is isolated from the calibrated spring 14 by said membrane, preferably obtained by overmolding or bi-injection with the body of the regulation chamber.
  • the bottom 21 of the regulation chamber 13 is pierced in its center with an orifice 25 forming an inlet orifice for the regulation chamber.
  • the body 20 of the regulation chamber 13 is crossed, near the bottom 21, by an orifice 26 forming an outlet orifice for the regulation chamber 13.
  • the piston 22 is integral with a rod 27, arranged axially.
  • the rod 27 passes through the orifice 25, and has its free end ending by a plate 28 with an outside diameter greater than the diameter of the orifice 25.
  • the rod, for its part has an outer section less than the section of the orifice 25, so as to allow the product to pass between the interior walls of the orifice 25 and the rod 27.
  • the rod 27 is of sufficient length to be able to go from the closed position of the inlet port shown in the figure 2C, in the closed position of the outlet orifice 26, shown in the figure 2A.
  • a seal 31 is placed around the rod 27, in contact with the plate 28, so as to seal the inlet orifice 25 of the regulation chamber 13, in the event of overpressure inside the regulation.
  • the piston 22 extends on the side opposite to the compartment 12 by a portion annular skirt 29, of decreasing thickness in the direction of the bottom 21.
  • the relative position of the skirt portion 29 relative to the orifice outlet 26, changes, so as to more or less clear the outlet orifice 26, and regulating the product outlet flow rate through the orifice 26.
  • a sealing is carried out all around the regulation chamber, between the body 20 of the regulation chamber 13 and the internal wall of the valve body 2 at by means of a sealing lip 30, advantageously obtained by molding with the body 20 of the regulation chamber 13, and located near the bottom 21 of the regulation chamber 13, below the outlet orifice 26.
  • valve stem 9 is actuated, that is to say pressed in against the return force of the spring 16, which causes the release the outlet passage 17.
  • the pressure inside the compartment 23 is substantially equal to the pressure exerted by the spring calibrated 14.
  • the piston 22 is in an equilibrium position such that the inlet orifice 25 is not blocked by the plate 28.
  • the skirt portion 29 is above the orifice 26, which is entirely free.
  • the product enters the regulation by the orifice 25, leaves the regulation chamber by the orifice 26, and is routed in the tubular part 10 of the valve stem 9, via the passage of exit 17.
  • calibrated spring 14 is chosen so as to allow optimal distribution of the product and a cessation of distribution as soon as the product can no longer be dispensed or sprayed under acceptable conditions due to pressure too weak.
  • FIGS. 2A-2C illustrate a variant of the embodiment of FIGS. 2A-2C.
  • the regulation chamber 13 does not have any means for closing the inlet orifice.
  • the closing means of the outlet orifice consist of a skirt portion 29, integral with the piston 22, and having an orifice 40 whose position by with respect to the outlet 26 determines the output flow of the product.
  • stop means 41 are provided for so as to limit the ascent of the piston in the regulation chamber, in order to never completely block the outlet in the event of overpressure in the regulation chamber.
  • valve stem is actuated, that is to say pressed against of the return force of the spring 16, which causes the passage to be cleared outlet 17.
  • the pressure inside the compartment 23 is substantially equal to the pressure exerted by the calibrated spring 14.
  • the piston 22 is in an equilibrium position such that port 40 is substantially in alignment with the outlet orifice 26.
  • the product enters the regulation chamber through port 25, exits regulation chamber through the orifice 26, and is conveyed in the tubular part 10 of the valve stem 9, via the exit passage 17.
  • the orifice 40 of the skirt 29 is no longer opposite the outlet orifice 26, which is completely closed by the skirt 29 (see FIG. 3A), which interrupts definitively product distribution.
  • the force of the calibrated spring 14 is chosen so as to allow an optimal distribution of the product, and a stop of the distribution as soon as the product can no longer be distributed or sprayed in acceptable conditions, due to too low pressure.

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

Claims (16)

  1. Ventil (1), insbesondere für einen Aerosolbehälter, das innerhalb eines Ventilkörpers (2) aufweist: a) einen Eingangsdurchlaß (4), der mit dem Inneren des Behälters in Verbindung steht, und einen Ausgangsdurchlaß (10), der mit der Außenumgebung in Verbindung steht, b) Mittel (9), um als Reaktion auf eine Betätigungssteuerung den Ausgangsdurchlaß (10) mit dem Eingangsdurchlaß (4) in Verbindung zu setzen, c) erste elastische Rückholmittel (16), um das Ventil (1) in die geschlossene Stellung zu beaufschlagen, und d) Mittel zur Regelung der Ausgangs-Fördermenge des Produkts (12-14, 22, 25, 26, 28, 29), die zweite elastische Rückholmittel (14) aufweisen, um einen Solldruck für die Regelungsmittel zu liefern, wobei die zweiten elastischen Rückholmittel (14) in einem Abteil (12) angeordnet sind, das vom Produkt isoliert ist, wobei der Druck innerhalb des Abteils (12) gleich Atmosphärendruck ist, dadurch gekennzeichnet, daß das Abteil (12) im Inneren des Ventilkörpers (2) angeordnet ist.
  2. Ventil nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zur Regelung der Fördermenge (12-14, 22, 25, 26, 28, 29) eine Regelungskammer (13) aufweisen, die zwischen dem Eingangsdurchlaß (4) und dem Ausgangsdurchlaß (10) angeordnet ist, wobei die Regelungskammer eine Eingangsöffnung (25) und eine Ausgangsöünung (26) aufweist, wobei Schließmittel (28, 29), die auf die zweiten elastischen Rückholmittel (14) montiert sind, vorgesehen sind, um in Abhängigkeit vom Druck zwischen der Eingangsöffnung (25) und der Ausgangsöffnung (26) den Öffnungsgrad der Eingangs- (25) und/oder Ausgangsöffnung (26) zu verändern, wobei die zweiten elastischen Rückholmittel (14) in einem Abteil (12) der Regelungskammer (13) angeordnet sind, das durch einen beweglichen Kolben (22) vom Produkt isoliert und auf Atmosphärendruck gehalten wird.
  3. Ventil nach Anspruch 2, dadurch gekennzeichnet, daß der bewegliche Kolben (22) fest mit den Schließmitteln (28, 29) verbunden ist.
  4. Ventil nach Anspruch 3, dadurch gekennzeichnet, daß die Schließmittel (28, 29) erste Schließmittel (29) für die Ausgangsöffnung (26) aufweisen, die aus einer ringförmigen Schürze (29) bestehen, die vom Kolben (22) getragen wird und innerhalb der Regelungskammer (13) angeordnet ist, und deren Stellung in bezug auf die Ausgangsöffnung (26) den Öffhungsgrad dieser letzteren bestimmt.
  5. Ventil nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der bewegliche Kolben (22) gleitend innerhalb der Regelungskammer (13) angeordnet ist, wobei eine geschmeidige Membran (24) in der Regelungskammer (13) zwischen dem Kolben (22) und den zweiten elastischen Rückholmitteln (14) angeordnet ist, um den Kolben (22) dicht von den zweiten Rückholmitteln (14) zu isolieren.
  6. Ventil nach Anspruch 5, dadurch gekennzeichnet, daß die geschmeidige Membran (24) auf den Körper der Regelungskammer (13) aufgeformt oder mit ihm bi-injiziert wird.
  7. Ventil nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß Anschlagmittel (41) vorgesehen sind, um im Fall eines Überdrucks innerhalb der Regelungskammer (13) eine Mindest-Fördermenge des Produkts aufrechtzuerhalten.
  8. Ventil nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß die Schließmittel (28, 29) außerdem zweite Schließmittel (28) aufweisen, die fest mit dem beweglichen Kolben (22) verbunden sind, um in Abhängigkeit vom Druck im Inneren der Regelungskammer (13) den Öffnungsgrad der Eingangsöffnung (25) der Regelungskammer (13) zu verändern, wobei die ersten und zweiten Schließmittel (28, 29) so ausgebildet sind, daß in der geschlossenen Stellung der Eingangsöffnung (25) die Ausgangsöffnung (26) zumindest teilweise geöffnet ist.
  9. Ventil nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß die Eingangsöffnung (25) am Boden (21) der Regelungskammer angeordnet ist, während die Ausgangsöffnung (26) sich auf einer Seitenwand der Regelungskammer (13) in Abstand d zum Boden (21) der Regelungskammer befindet, wobei eine ringförmige Lippe (30) die Dichtheit zwischen der Regelungskammer (13) und dem Ventilkörper (2) um die ganze Regelungskammer herum gewährleistet, wobei die Dichtlippe (30) axial zwischen dem Boden (21) der Regelungskammer und der Ausgangsöffnung (26) angeordnet ist.
  10. Ventil nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Ausgangsdurchlaß (10) von einer Ventilstange (9, 10) gebildet wird, die fest mit der Regelungskammer (13) verbunden ist, wobei die Regelungskammer (13) auf die ersten elastischen Rückholmittel (16) montiert ist, wobei die Ventilstange (9, 10) einen aus dem Ventilkörper vorstehenden Teil aufweist, der einen Ausgangskanal bildet, der mit dem Ventilkörper über einen die Ventilstange (9, 10) radial durchquerenden Durchlaß (17) verbunden werden kann.
  11. Ventil nach Anspruch 10, dadurch gekennzeichnet, daß in der geschlossenen Stellung des Ventils (1) der radiale Durchlaß (17) vor einer Dichtung (6) gehalten wird, die sich im oberen Bereich des Ventilkörpers (2) befindet.
  12. Ventil nach einem der Ansprüche 2 bis 11, dadurch gekennzeichnet, daß, wenn der Druck im Inneren der Regelungskammer (13) unter einen vorbestimmten Wert sinkt, die Schließmittel (29) die Ausgangsöffnung (26) der Regelungskammer dicht verschließen, um die Ausgabe von Produkt zu unterbrechen.
  13. Behälter (100) zur Ausgabe eines Produkts unter Druck, der mit einem Ventil (1) gemäß einem der Ansprüche 1 bis 12 versehen ist.
  14. Behälter (100) nach Anspruch 13, dadurch gekennzeichnet, daß er einen Körper (101) aufweist, der ein das auszugebende Produkt enthaltendes Gefäß definiert, und von dem ein Ende (102) von einem Boden (103) verschlossen wird, während über dem anderen Ende (104) das Ventil (1) sitzt, wobei das Betätigungsmittel des Ventils aus einem Druckknopf (109) besteht.
  15. Behälter nach Anspruch 14, dadurch gekennzeichnet, daß der Druckknopf Ausbreitungsmittel (107) für den Austritt des Produkts aufweist, wobei die Ausbreitungsmittel (107) aus einer Düse, insbesondere einer Wirbelstromdüse, einem Gitter, oder einem porösen Ansatzstück, insbesondere aus Sintermaterial oder aus Schaumstoff mit offenen Zellen, bestehen.
  16. Verwendung eines Behälters nach einem der Ansprüche 13 bis 15 zur Verpackung und Ausgabe unter Druck eines Frisierprodukts, insbesondere eines Lacks, eines Sprays oder eines Schaums, oder eines Deodorants, oder eines Pflegeprodukts, insbesondere einer Milch, eines Öls, einer Creme oder eines Gels.
EP98403289A 1998-01-23 1998-12-23 Ventil zur Durchflussregelung einer Flüssigkeit und mit solch einem Ventil versehener Behälter Expired - Lifetime EP0931734B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9800720 1998-01-23
FR9800720A FR2774077B1 (fr) 1998-01-23 1998-01-23 Valve a regulation de debit de sortie, et recipient equipe d'une telle valve

Publications (2)

Publication Number Publication Date
EP0931734A1 EP0931734A1 (de) 1999-07-28
EP0931734B1 true EP0931734B1 (de) 2003-03-05

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EP98403289A Expired - Lifetime EP0931734B1 (de) 1998-01-23 1998-12-23 Ventil zur Durchflussregelung einer Flüssigkeit und mit solch einem Ventil versehener Behälter

Country Status (7)

Country Link
US (2) US6145712A (de)
EP (1) EP0931734B1 (de)
JP (1) JP3024112B2 (de)
CA (1) CA2257485A1 (de)
DE (1) DE69811848T2 (de)
ES (1) ES2194292T3 (de)
FR (1) FR2774077B1 (de)

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JP3024112B2 (ja) 2000-03-21
JPH11263385A (ja) 1999-09-28
FR2774077B1 (fr) 2000-04-07
EP0931734A1 (de) 1999-07-28
CA2257485A1 (fr) 1999-07-23
FR2774077A1 (fr) 1999-07-30
DE69811848T2 (de) 2003-09-04
USRE38207E1 (en) 2003-08-05
US6145712A (en) 2000-11-14
DE69811848D1 (de) 2003-04-10
ES2194292T3 (es) 2003-11-16

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