EP1497037B1 - Abgabepumpe für medien - Google Patents

Abgabepumpe für medien Download PDF

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Publication number
EP1497037B1
EP1497037B1 EP03740589A EP03740589A EP1497037B1 EP 1497037 B1 EP1497037 B1 EP 1497037B1 EP 03740589 A EP03740589 A EP 03740589A EP 03740589 A EP03740589 A EP 03740589A EP 1497037 B1 EP1497037 B1 EP 1497037B1
Authority
EP
European Patent Office
Prior art keywords
pump
outlet valve
inlet valve
valve element
pump body
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
EP03740589A
Other languages
English (en)
French (fr)
Other versions
EP1497037A1 (de
Inventor
Ludovic Petit
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
Original Assignee
Valois SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valois SAS filed Critical Valois SAS
Publication of EP1497037A1 publication Critical patent/EP1497037A1/de
Application granted granted Critical
Publication of EP1497037B1 publication Critical patent/EP1497037B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
    • 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
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke

Definitions

  • the present invention relates to a product dispensing pump manually operated fluid, as well as a product dispensing device fluid comprising such a pump.
  • a fluid dispensing pump generally comprises a pump body in which slides a piston between a rest position and a dispensing position.
  • the pump body can contain a pump chamber generally defined between an inlet valve and an outlet valve.
  • sealing at the outlet valve is essential during actuation to avoid any leakage before the end of the actuation, and, similarly, sealing at the inlet flap must also be optimal in order to avoid any reflux of the product contained in the pump chamber towards the tank at the time of actuation.
  • Another problem that may arise relates to the priming, that is to say the evacuation of the air contained in the chamber before the first pump operation.
  • the air is evacuated through the outlet valve towards the orifice of distribution.
  • This solution is not always suitable when the device has a shutter at the dispensing orifice, and in particular when such a shutter does not allow the evacuation of air during priming.
  • Another solution is to fit a hole in the pump body and to evacuate the air through this hole. This solution implies, however, that after the priming, it is necessary to provide a means of closing this hole which can make the structure of the pump relatively complex.
  • the present invention aims to provide a dispensing pump of fluid product that does not reproduce the aforementioned disadvantages.
  • the object of the present invention is therefore to provide a fluid dispensing pump which ensures a perfect seal at the outlet valve and the inlet valve during actuation of the pump. eliminating any risk of leakage or reflux of the product contained inside the pump chamber during actuation, and thus ensuring the accuracy and reproducibility of the assay.
  • Another object of the present invention is to provide a pump for fluid dispensing which ensures in a simple way easy priming of this pump, even when the device incorporating the pump comprises a shutter.
  • the present invention also aims to provide such a pump of fluid dispensing that is simple and inexpensive to manufacture and to assemble.
  • the subject of the present invention is therefore a pump for dispensing fluid product with manual operation, as described in claim 1.
  • Advantageous embodiments are described in the claims dependent.
  • the present invention also relates to a dispensing device fluid product comprising a pump as defined above.
  • the pump comprises a pump body 10 in which slides a piston 50 between a position of rest (shown in FIGS. 1 and 4) and a dispensing position (shown in Figures 3 and 6).
  • the piston 50 is connected, preferably integrally, with an actuating rod 60 on which the user exerts an axial force, for example by means of a pusher or a head of distribution (not shown).
  • the actuating rod 60 can be hollow and generally includes an expulsion channel 65 allowing the expulsion of the product.
  • the pump body 10 contains a pump chamber 20 defined between an inlet valve 30 and an outlet valve 40.
  • the inlet valve 30 comprises a inlet valve member 31 which cooperates with the pump body 10 or a integral element thereof to define the opening and closing positions of said inlet valve 30.
  • the outlet valve 40 has a outlet valve member 41 which cooperates with the actuating rod 60 (or a integral part of it) to define the positions of opening and closing said outlet valve 40.
  • the inlet valve element 31 and the element of the outlet valve 41 are both movable inside the pump body 10.
  • the pump of the invention can be mounted on a reservoir (not shown) by means of a fixing ring 1 which can be any, and in particular screwable, crimpable or snap-on.
  • a seal 5 is interposed between the upper edge of the tank (not shown) and the ring of 1.
  • a dispensing head or pusher is then assembled on the pump to operate the latter, and thus form a dispensing device of fluid product with manual operation.
  • the outlet valve 40 is biased towards its position of closing by the pressure of the product contained in the pump chamber 20. This guarantees that there is no risk of leakage during the actuation of the pump, since as soon as the user actuates the pump, it creates a pressure inside of the pump chamber 20 and this pressure will solicit the outlet valve 40 towards its closed position and thus ensure optimum sealing at this level.
  • the inlet valve member 31 co-operates with a part of the pump body 10 which is made in such a way that the pressure of the product contained inside the pump chamber 20 also improves the sealing of said inlet valve 30.
  • the inlet valve member 31 cooperates with the valve member of output 41 to move the latter mechanically to the open position of the outlet valve 40. This mechanical opening of the outlet valve at the end of actuation stroke of the pump ensures a distribution of the entire dose each time the pump is actuated.
  • the inlet valve element 31 comprises a sleeve axial hollow lower 32 and an upper hollow axial sleeve 34.
  • the sleeve lower axial 32 slides in a sealed manner around a hollow axial tube 12 integral with the pump body 10.
  • this axial tube 12 can be made integrally with the pump body 10 and be concentric inside of it, at its lower edge.
  • the seal is made at the lower end 33 of said sleeve lower 32, and this seal is improved during the actuation of the pump by the pressure of the product contained in the pump chamber 20, the product extending around said lower sleeve 32 of the valve member 31.
  • the lower end 33 of said lower sleeve 32 is spaced from the upper end 13 of said axial tube 12, which defines the position opening of the inlet valve 30, by opening a passage for the product towards the pump chamber 20.
  • said axial tube 12 of the pump body 10 can have one or more radial projection (s) 14, preferably made in its lower part, and which cooperates (s) with the lower end 33 of said lower sleeve 32 of the inlet valve member 31 during the first actuation of the pump.
  • This makes it possible to prime the pump safely and simple by evacuating the air contained in the pump chamber 20 through the dip tube towards the inside of the tank (not shown).
  • Figures 2 and 4 represent the priming position, in which the lower end 33 of the lower sleeve 32 cooperates with said radial projections 14 of the axial tube 12. This opens an expulsion passage for the air contained in the pump chamber 20.
  • the chamber pump 20 fills with fluid from the reservoir (not shown).
  • the inlet valve member 31 will never again reach the position in which its lower end 33 can cooperate with said radial projections 14 of the axial tube 12. Indeed, the outlet valve 40 of the pump will always be mechanically opened by said inlet valve element 31 before said lower edge 33 of said inlet valve member 31 does not reach said radial projections 14.
  • the presence of these radial projections 14 thus allows the priming of the pump, but does not present any risk of leakage during the subsequent actuation of the pump, in particular at the level of the sealing of the inlet valve 30.
  • the present invention thus provides a simple and reliable priming, and evacuation of air through the dip tube allows the pump of the present invention to be used with any type of shutter, including a shutter that does not allow the expulsion of air during priming.
  • the upper hollow axial sleeve 34 of the inlet valve member 31 has an upper edge 35 which forms a radially inward shoulder.
  • This upper edge 35 is slidably mounted, preferably in a sealed manner, around a portion of said outlet valve member 41, defined between two radial shoulders towards the lower and upper outside 45 and 46.
  • the edge upper 35 of the upper sleeve 34 cooperates with said lower shoulder 45 of the outlet valve member 41 to mechanically open said check valve output 40 when the piston 50 reaches its dispensing position.
  • the check valve exit is automatically returned to its closed position after the actuation of the pump by the product entering inside the chamber of pump 20 when the piston 50 returns from its dispensing position to its rest position.
  • the embodiment of FIGS. 4 to 6 that the upper edge 35 of the upper sleeve 34 of the valve member input 31 cooperates with said upper shoulder 46 of the valve element of output 41 to mechanically close said outlet valve 40 after expulsion of the product contained in the pump chamber 20.
  • this feature of mechanically closing the outlet valve 40 could all adapted in the first embodiment described with reference to the Figures 1 to 3.
  • a spring 70 forming a return spring of the pump, is advantageously arranged between the pump body 10 and the valve element This spring 70 urges the inlet valve 30 towards its position. opening and the piston 50 to its rest position.
  • the present invention thus provides a safe and reliable pump which avoids all risk of leakage during actuation, which allows safe and reliable priming during of the first actuation of the pump, and which especially is simple and inexpensive to manufacture and assemble because it has only a very small number of parts constituent. Indeed, to get this pump with all these advantages, the The present invention uses only six parts, namely the pump body 10, the inlet valve member 31, the outlet valve member 14, the spring of recall 70, the piston 50 and a ferrule 80 (which is the abutment element fitted in the upper edge of the pump body 10 and which defines the rest position piston 50).

Landscapes

  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (7)

  1. Von Hand zu betätigende Abgabepumpe für ein fluidförmiges Produkt, die einen Pumpenkörper (10) umfasst, der eine Pumpenkammer (20) enthält, wobei diese Pumpenkammer (20) zwischen einem Eintrittsventil (30) und einem Ausgangsventil (40) angeordnet ist, sowie einen Kolben (50), der im Pumpenkörper (10) zwischen einer Ruhelage und einer Abgabestellung gleitet, um das in der Pumpenkammer enthaltene Produkt abzugeben, wobei der Kolben (50) insbesondere in einstückiger Weise mit einer Betätigungsstange (60) verbunden ist, die einen Ausstoßkanal (65) aufweist, wobei das Eintrittsventil (30) ein Eintrittsventilelement (31) umfasst, das im Pumpenkörper (10) verschiebbar ist und mit dem Pumpenkörper (10) oder einem mit dem Pumpenkörper fest verbundenen Element zusammenwirkt, um die Öffnungs- und die Schließstellung des Eintrittsventils (30) zu definieren, wobei das Eintrittsventilelement (31) eine axiale, hohle, untere Buchse (32) umfasst, die in der Schließstellung des Eintrittsventils (30) in dichter Weise um ein hohles, axiales Rohr (12) gleitet, das fest mit dem Pumpenkörper (10) verbunden ist, wobei das untere Ende (33) der unteren Buchse (32) vom oberen Ende (13) des axialen Rohrs (12) in der Öffnungsstellung des Eintrittsventils (30) einen Abstand aufweist, um einen Durchgang für das Produkt zur Pumpenkammer (20) zu bilden, und wobei das Ausgangsventil (40) ein Ausgangsventilelement (41) umfasst, das im Pumpenkörper (10) verschiebbar ist und mit der Betätigungsstange (60) oder einem Element zusammenwirkt, das mit dieser Betätigungsstange fest verbunden ist, um die Öffnungs- und die Schließstellung des Ausgangsventils (40) zu definieren, dadurch gekennzeichnet, dass bei der Betätigung das Ausgangsventil (40) durch den Druck des in der Pumpenkammer (20) enthaltenen Produktes zu seiner Schließstellung hin vorgespannt ist, dass das Ausgangsventilelement (41) zur Öffnungsstellung des Ausgangsventils (40) durch das Eintrittsventilelement (31) verschoben wird, wenn der Kolben (50) seine Abgabestellung erreicht.
  2. Pumpe nach Anspruch 1, bei der das axiale Rohr (12) des Pumpenkörpers (10) einen oder mehrere radiale Vorsprünge (14) umfasst, die mit dem unteren Ende (33) der unteren Buchse (32) des Eintrittsventilelementes (31) bei der ersten Betätigung zusammenwirken, um einen Ausstoßkanal für die in der Pumpenkammer enthaltene Luft (20) zu öffnen, um die Pumpe in Gang zu setzen.
  3. Pumpe nach einem der vorhergehenden Ansprüche, bei der das Eintrittsventilelement (31) eine obere, hohle, axiale Buchse (34) umfasst, deren oberer Rand (35) eine nach innen gerichtete, radiale Schulter bildet und die in verschieblicher Weise um das Ausgangsventilelement (41) herum zwischen einer radial nach außen gerichteten unteren und einer radial nach außen gerichteten oberen Schulter (45, 46) des Ausgangsventilelementes (41) montiert ist.
  4. Pumpe nach Anspruch 3, bei der der obere Rand (35) der oberen Buchse (34) mit der unteren Schulter (45) des Ausgangsventilelementes (41) zusammenwirkt, um das Ausgangsventil (40) zu öffnen, wenn der Kolben (50) seine Abgabeposition erreicht.
  5. Pumpe nach Anspruch 3 oder 4, bei der der obere Rand (35) der oberen Buchse (34) mit der oberen Schulter (46) des Ausgangsventilelementes (41) zusammenwirkt, um das Ausgangsventil (40) nach dem Ausstoßen des in der Pumpenkammer (20) enthaltenen Produktes wieder zu schließen.
  6. Pumpe nach einem der vorhergehenden Ansprüche, bei der eine Feder (70) zwischen dem Pumpenkörper (10) und dem Eintrittsventilelement (31) angeordnet ist, wobei diese Feder (70) das Eintrittsventil (30) in seine Öffnungsstellung und den Kolben (50) zu seiner Ruhestellung hin vorspannt.
  7. Abgabevorrichtung für ein fluidförmiges Produkt, dadurch gekennzeichnet, dass sie eine Pumpe nach einem der vorhergehenden Ansprüche umfasst.
EP03740589A 2002-04-17 2003-04-10 Abgabepumpe für medien Expired - Lifetime EP1497037B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0204814A FR2838787B1 (fr) 2002-04-17 2002-04-17 Pompe de distribution de produit fluide
FR0204814 2002-04-17
PCT/FR2003/001144 WO2003086648A1 (fr) 2002-04-17 2003-04-10 Pompe de distribution de produit fluide

Publications (2)

Publication Number Publication Date
EP1497037A1 EP1497037A1 (de) 2005-01-19
EP1497037B1 true EP1497037B1 (de) 2005-10-26

Family

ID=28686139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03740589A Expired - Lifetime EP1497037B1 (de) 2002-04-17 2003-04-10 Abgabepumpe für medien

Country Status (7)

Country Link
EP (1) EP1497037B1 (de)
JP (1) JP4369760B2 (de)
CN (1) CN1329126C (de)
AU (1) AU2003262151A1 (de)
DE (1) DE60302056T2 (de)
FR (1) FR2838787B1 (de)
WO (1) WO2003086648A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2862106B1 (fr) 2003-11-07 2007-08-24 Valois Sas Pompe de distribution de produit fluide.
CN104074735B (zh) * 2013-02-18 2016-08-24 中村英子 内燃机尾气净化的后处理***的计量泵液体释放控制装置
MX2016009568A (es) * 2014-02-26 2016-11-09 Dispensing Tech Bv Dispositivo para el suministro de liquido con una valvula de salida de pre-compresion.
FR3096090B1 (fr) * 2019-05-14 2022-10-28 Aptar France Sas Pompe à précompression haute pression

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665733A1 (fr) * 1990-08-07 1992-02-14 Valois Perfectionnement d'une pompe-doseuse a precompression permettant d'en ameliorer le rendement par admission precoce dans la chambre de pompe.
US5303854A (en) * 1993-03-08 1994-04-19 Spruhventile Gmbh Pharmaceutical pump dispenser having hydraulically closed outlet port
CN2423968Y (zh) * 2000-04-13 2001-03-21 苏正原 液体喷雾器

Also Published As

Publication number Publication date
JP4369760B2 (ja) 2009-11-25
FR2838787A1 (fr) 2003-10-24
FR2838787B1 (fr) 2005-11-04
JP2005527353A (ja) 2005-09-15
DE60302056T2 (de) 2006-07-20
EP1497037A1 (de) 2005-01-19
CN1652880A (zh) 2005-08-10
WO2003086648A1 (fr) 2003-10-23
AU2003262151A1 (en) 2003-10-27
DE60302056D1 (de) 2005-12-01
CN1329126C (zh) 2007-08-01

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