EP2004333B1 - Fluidproduktabgabepumpe - Google Patents

Fluidproduktabgabepumpe Download PDF

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Publication number
EP2004333B1
EP2004333B1 EP07731781.6A EP07731781A EP2004333B1 EP 2004333 B1 EP2004333 B1 EP 2004333B1 EP 07731781 A EP07731781 A EP 07731781A EP 2004333 B1 EP2004333 B1 EP 2004333B1
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EP
European Patent Office
Prior art keywords
pump
piston
pump according
fluid
pump chamber
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.)
Active
Application number
EP07731781.6A
Other languages
English (en)
French (fr)
Other versions
EP2004333A1 (de
Inventor
Samuel Pruvot
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.)
Aptar France SAS
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Aptar France SAS
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Publication date
Application filed by Aptar France SAS filed Critical Aptar France SAS
Publication of EP2004333A1 publication Critical patent/EP2004333A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1061—Pump priming means
    • B05B11/1063—Air exhausted from the pump chamber being discharged into the container during priming

Definitions

  • the present invention relates to a fluid dispenser pump and a fluid dispenser device comprising such a pump.
  • Fluid dispensing pumps are well known in the state of the art, in particular for dispensing fluid, liquid or pasty products in the fields of cosmetics, perfumery or pharmacy. They generally comprise a piston sliding in a pump body, more particularly in a pump chamber provided in this pump body, and adapted to dispense a dose of fluid product with each actuation of the pump.
  • the pump chamber generally comprises an inlet valve to enable the dose of product expelled to be defined at each actuation.
  • some pumps sometimes incorporate shutters at the dispensing orifice, to prevent contamination of the product between two actuations.
  • a problem with this type of pump is priming. Indeed, before the first actuation of the pump, the pump chamber is filled with air, and it is therefore necessary to expel this air completely to allow filling of said pump chamber with fluid and allow dosing accurate and reproducible with each actuation of the pump. Priming is made all the more complicated as the pump has a shutter. It is difficult to expel the air contained in the pump chamber out of it, in particular because of the presence of said shutter.
  • the document FR-2 862 009 discloses a pump according to the preamble of claim 1.
  • the present invention aims to provide a fluid dispensing pump that does not reproduce the aforementioned drawbacks.
  • the present invention aims to provide a fluid dispensing pump which avoids any risk of blockage of the pump, in particular by avoiding an excessive increase in the vacuum in the tank relative to that in the pump chamber.
  • the present invention also aims to provide a fluid dispensing pump that allows a safe and reliable priming in a simple and inexpensive way.
  • Another object of the present invention is to provide a fluid dispenser pump which guarantees a spray spray each time the pump is actuated, regardless of the force that the user exerts on it when it is actuated.
  • the present invention also aims to provide a fluid dispenser pump that is simple and inexpensive to manufacture and assemble.
  • the present invention therefore relates to a fluid dispenser pump as described in claim 1.
  • Advantageous embodiments are described in the dependent claims.
  • the present invention also relates to a fluid dispenser device comprising a fluid reservoir and a pump as described above.
  • the dispensing pump comprises a pump body 10 in which at least a first piston 72 slides between a rest position and an actuated position (shown in the figures).
  • This first piston 72 partially defines a pump chamber 20 and the actuation of the pump causes the dispensing of a dose of product contained in the pump chamber 20 through a dispensing orifice 45, preferably formed in a pump head.
  • Distribution 40 The pump may advantageously comprise a shutter 38, disposed directly upstream of the dispensing orifice 45, and cooperating with it by being displaceable and / or deformable between a closed position of the dispensing orifice 45 and an open position thereof.
  • the pump chamber 20 comprises an inlet valve 70, which may be in the form of a ball 75 forming a valve element and cooperating with a valve seat 71.
  • the valve element 75 is shown in the form of a ball, but it could be realized in a different way.
  • the pump body 10 is preferably formed of a one-piece piece with the shutter 38, inside thereof.
  • the piston 72 and the valve seat 71 are integral with a hollow rod 118 which may also incorporate a fixing ring 15 adapted to fix the pump on a reservoir 60 containing the fluid, advantageously with the interposition of a gasket. 65.
  • the hollow rod 118 defines a channel 18 extending towards the tank 60.
  • a dip tube 218, intended to extend to the bottom of the reservoir 60 to distribute all the product it contains, can also be connected or made in one piece with said hollow rod 118.
  • the pump has only one spring 50 adapted to return the first piston 72 to its rest position and the shutter 38 to its closed position after each actuation.
  • This spring 50 is advantageously out of contact with the fluid, which eliminates any risk of alteration of the fluid in question.
  • the shutter 38 slides axially between its open and closed positions in a sleeve 150 provided in the bottom of the actuating head 40.
  • a spraying profile (not shown) is preferably made in said sleeve to enable a swirling of the product at the time of its expulsion, to form a spray.
  • said shutter 38 comprises at least one second piston 34 cooperating sealingly with the dispensing head 40, in all positions.
  • the shutter 38 comprises a second piston 34 making it possible to isolate the spring 50 and a third piston 35 defining the pump chamber 20.
  • a bypass passage 74 is provided between the channel 18 and the pump chamber 20, upstream of the inlet valve 70.
  • This bypass passage 74 makes it possible on the one hand to connect the pump chamber 20 to the channel 18 during the priming the pump.
  • this bypass passage 74 can be made in the form of a lateral bore made in the valve seat 71 upstream of the valve member 75.
  • the valve seat 71 is then advantageously arranged upstream of the first piston. 72, which slides in a sealed manner in said pump body 10, the latter comprising at least one opening 32 adapted to cooperate with said first piston 72 during priming.
  • the first piston 72 can not more reach said opening 32 of the pump body during normal operation of the pump, that is to say during the dispensing of the product, but only at the end of the actuation, in the actuated position of the first piston 72.
  • Said valve input 70 then operates in a conventional manner to close upon actuation and open when the pump is returned to its rest position.
  • the bypass passage 74 also makes it possible to connect the pump chamber 20 to the channel 18 and therefore to the reservoir 60, when the first piston 72 reaches its actuated position. This makes it possible to balance the pressures in the pump chamber 20 and in the reservoir 60, and thus prevents the relative increase of the vacuum in the tank relative to that in the pump chamber, which would otherwise risk blocking the pump. by preventing the opening of the inlet valve 70 of the pump chamber.
  • passage means 200 are provided to ensure the connection between the pump chamber 20 and the bypass passage 74, in the actuated position of the first piston 72.
  • These passage means may comprise one or more grooves and / or ribs, and more generally any type of profile.
  • these passage means 200 are formed on the outer surface of the inner rod 118 whose upper end forms the first piston 72.
  • these passage means 200 are provided between the bypass passage 74 and said at least one opening 32 of the pump body 10. The presence of these passage means 200 prevents clogging or plugging of the passage due for example to the natural deformation of certain components of the pump, which can occur under the effect of the depression generated at each actuation.
  • the present invention therefore provides a pump that does not present a risk of blockage.
  • the bypass passage 74 provided upstream of the inlet valve 70 of the pump chamber 20 thus provides a dual function, namely on the one hand an air discharge passage during priming, and secondly a balancing passage of the pressures between the pump chamber and the reservoir after each actuation, to ensure proper operation of the pump.
  • the plunger tube 218 could be made integrally with the fixing element 15 which fixes the pump on the reservoir 60 and / or with the hollow rod 118.
  • the shapes of the shutter 38, the body 10 of the pump, the first piston 72, the inlet valve 70 of the pump chamber 20 or the other elements could be made differently if necessary.
  • Other modifications are also conceivable for those skilled in the art without departing from the scope of the present invention as defined by the appended claims.

Claims (16)

  1. Ausgabepumpe für ein fluides Produkt, aufweisend einen Pumpenkörper (10), eine Pumpenkammer (20), mindestens einen ersten Kolben (72), der in der Pumpenkammer (20) zwischen einer Ruheposition und einer Betätigungsposition zur Ausgabe des fluiden Produkts gleitet, und eine Ausgabeöffnung (45), wobei die Pumpenkammer eine Einlassklappe (70) aufweist, die die Pumpenkammer (20) von einem Kanal (18) trennt, der sich zu einem Behältnis (60) für das fluide Produkt erstreckt, wobei ein Umlenkdurchlass (74) zwischen dem Kanal (18) und der Pumpenkammer (20) vorgesehen ist, wobei der Umlenkdurchlass (74) stromaufwärts der Einlassklappe (70) angeordnet ist, dadurch gekennzeichnet, dass der Umlenkdurchlass in der Betätigungsposition des Kolbens (72) die Pumpenkammer (20) bei jeder Betätigung der Pumpe mit dem Behältnis (60) verbindet, um einen Druckausgleich zwischen der Pumpenkammer (20) und dem Behältnis (60) zu ermöglichen.
  2. Pumpe nach Anspruch 1, wobei die Einlassklappe (70) einen einstückig mit dem ersten Kolben (72) ausgebildeten Klappensitz (71) und ein Klappenelement (75) aufweist, wobei der erste Kolben (72) dichtend in dem Pumpenkörper (10) gleitet, wobei der Pumpenkörper (10) mindestens eine Öffnung (32) aufweist, die in der Betätigungsposition mit dem ersten Kolben (72) zusammenwirkt, um den Umlenkdurchlass (74) zu öffnen.
  3. Pumpe nach einem der vorhergehenden Ansprüche, wobei die Pumpe einen Ausgabekopf (40) aufweist, der die Ausgabeöffnung (45) aufweist.
  4. Pumpe nach einem der vorhergehenden Ansprüche, aufweisend einen Verschluss (38), der zwischen einer Verschlussposition der Ausgabeöffnung (45) und einer geöffneten Position der Ausgabeöffnung (45) verschiebbar und/oder verformbar ist.
  5. Pumpe nach Anspruch 4, wobei der Verschluss (38) mindestens einen zweiten Kolben (34, 35) aufweist, der in jeder Position dichtend mit dem Kopf (40) zusammenwirkt.
  6. Pumpe nach Anspruch 4 oder 5, wobei der Pumpenkörper (10) in einem Stück mit dem Verschluss (38) ausgebildet ist.
  7. Pumpe nach einem der Ansprüche 4 bis 6, wobei der Verschluss (38) insbesondere durch eine Feder (50) elastisch in seine Verschlussposition Vorgespannt ist und durch den Druck des in der Pumpenkammer (20) enthaltenen Produktes in seine geöffnete Position verschoben und/oder Zrerformt wird.
  8. Pumpe nach Anspruch 2, wobei das Klappenelement (75) eine Kugel ist.
  9. Pumpe nach einem der Vorhergehenden Ansprüche, wobei eine einzige Feder (50) den ersten Kolben (72) in seine Ruheposition und den Verschluss (38) in seine Verschlussposition vorspannt.
  10. Pumpe nach Anspruch 9, wobei die Feder (50) ganz außer Kontakt mit dem fluiden Produkt ist.
  11. Pumpe nach einem der vorhergehenden Ansprüche, wobei der erste Kolben (72) und der Klappensitz (71) in einem Stück mit einem Befestigungselement (15), wie einem Ring, der eingerastet, aufgedrückt oder verschraubt sein kann, gefertigt sind, wobei der Ring dazu geeignet ist, die Pumpe auf einem Behältnis (60) für fluides Produkt zu befestigen.
  12. Pumpe nach einem der vorhergehenden Ansprüche, wobei der erste Kolben (72) einstückig mit einer Hohls (118) ausgebildet ist, die zumindest teilweise den Kanal (18), die Einlassklappe (70) und den Umlenkdurchlass (74) bildet.
  13. Pumpe nach Anspruch 12, wobei die Hohlstange (118) mit einem Tauchrohr (218) verbunden ist, das sich in das Behältnis (60) erstreckt.
  14. Pumpe nach Anspruch 12 oder 13, wobei die Hohlstange an ihrer Außenfläche zwischen dem Umlenkdurchlass (74) und dem ersten Kolben (72) Durchlassmittel (200) aufweist, die in der Betätigungsposition des ersten Kolbens (72) eine Verbindung zwischen der Pumpenkammer (20) und dem Umlenkdurchlass (74) gewährleisten, und zwar unabhängig von der Verformung der Bauteile der Pumpe unter der Druckeinwirkung, die bei jeder Betätigung erzeugt wird.
  15. Pumpe nach Anspruch 14, wobei die Durchlassmittel (200) mindestens eine Nut und/oder Rippe aufweisen.
  16. Ausgabevorrichtung für ein fluides Produkt, aufweisend ein Behältnis (60) für ein fluides Produkt, dadurch gekennzeichnet, dass sie eine Pumpe nach einem der vorhergehenden Ansprüche aufweist.
EP07731781.6A 2006-03-22 2007-03-20 Fluidproduktabgabepumpe Active EP2004333B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0650995A FR2898818B1 (fr) 2006-03-22 2006-03-22 Pompe de distribution de produit fluide
PCT/FR2007/050966 WO2007107672A1 (fr) 2006-03-22 2007-03-20 Pompe de distribution de produit fluide

Publications (2)

Publication Number Publication Date
EP2004333A1 EP2004333A1 (de) 2008-12-24
EP2004333B1 true EP2004333B1 (de) 2013-07-03

Family

ID=37517110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07731781.6A Active EP2004333B1 (de) 2006-03-22 2007-03-20 Fluidproduktabgabepumpe

Country Status (6)

Country Link
US (1) US7780042B2 (de)
EP (1) EP2004333B1 (de)
JP (1) JP5260490B2 (de)
CN (1) CN101443128B (de)
FR (1) FR2898818B1 (de)
WO (1) WO2007107672A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2862107B1 (fr) * 2003-11-07 2006-02-10 Valois Sas Pompe de distribution de produit fluide.
FR2892158B1 (fr) * 2005-10-17 2011-10-21 Valois Sas Pompe de distribution de produit fluide
DE102009037164B3 (de) * 2009-08-03 2010-12-09 Ing. Erich Pfeiffer Gmbh Austragvorrichtung für flüssige Medien
DE102011082420B4 (de) * 2011-09-09 2021-02-04 Aptar Radolfzell Gmbh Flüssigkeitsspender und Austragskopf für einen Flüssigkeitsspender
DE102013202933B3 (de) * 2013-02-22 2013-11-14 Aptar Radolfzell Gmbh Kindergesicherte Austragvorrichtung
CN103911624A (zh) * 2014-04-29 2014-07-09 成都邦普合金材料有限公司 一种去除模具表面氮化铬涂层的方法
EP2977109B1 (de) 2014-07-23 2020-03-11 Noxell Corporation Verfahren, Vorrichtungen und Systeme zum Nachfüllen eines Flüssigkeitsspenders
FR3028571B1 (fr) * 2014-11-14 2019-09-13 Aptar France Sas Pompe manuelle
FR3075650B1 (fr) * 2017-12-22 2020-01-03 Aptar France Sas Dispositif de distribution de produit fluide.
FR3095968B1 (fr) * 2019-05-14 2021-10-01 Aptar France Sas Dispositif de distribution de produit fluide

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4640443A (en) * 1983-06-08 1987-02-03 Corsette Douglas Frank Manually operated dispensing pump
PL200833B1 (pl) * 2001-09-21 2009-02-27 Pfeiffer Erich Gmbh & Co Kg Dozownik z pojemnikiem aplikowanego środka oraz pompka do dozownika
PL201051B1 (pl) * 2001-09-21 2009-03-31 Pfeiffer Erich Gmbh & Co Kg Dozownik z pojemnikiem aplikowanego środka oraz z pompką
FR2862009B1 (fr) 2003-11-07 2007-01-05 Valois Sas Tete de pulverisation de produit fluide et pompe de distribution comportant une telle tete.
FR2862106B1 (fr) * 2003-11-07 2007-08-24 Valois Sas Pompe de distribution de produit fluide.
FR2862107B1 (fr) * 2003-11-07 2006-02-10 Valois Sas Pompe de distribution de produit fluide.

Also Published As

Publication number Publication date
CN101443128A (zh) 2009-05-27
EP2004333A1 (de) 2008-12-24
CN101443128B (zh) 2011-09-07
WO2007107672A1 (fr) 2007-09-27
FR2898818B1 (fr) 2008-08-22
FR2898818A1 (fr) 2007-09-28
JP5260490B2 (ja) 2013-08-14
US20090255959A1 (en) 2009-10-15
US7780042B2 (en) 2010-08-24
JP2009530095A (ja) 2009-08-27

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