EP1327478B1 - Poussoir d'une pompe aspirante et foulante pour la pulvérisation d'une produit contenu dans un récipient - Google Patents

Poussoir d'une pompe aspirante et foulante pour la pulvérisation d'une produit contenu dans un récipient Download PDF

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Publication number
EP1327478B1
EP1327478B1 EP03000259A EP03000259A EP1327478B1 EP 1327478 B1 EP1327478 B1 EP 1327478B1 EP 03000259 A EP03000259 A EP 03000259A EP 03000259 A EP03000259 A EP 03000259A EP 1327478 B1 EP1327478 B1 EP 1327478B1
Authority
EP
European Patent Office
Prior art keywords
ejection opening
actuating head
product
piston
outlet duct
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
EP03000259A
Other languages
German (de)
English (en)
Other versions
EP1327478A1 (fr
Inventor
Ettore Masuzzo
Stefan Christ
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.)
Aero Pump GmbH
Original Assignee
Aero Pump GmbH
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 Aero Pump GmbH filed Critical Aero Pump GmbH
Publication of EP1327478A1 publication Critical patent/EP1327478A1/fr
Application granted granted Critical
Publication of EP1327478B1 publication Critical patent/EP1327478B1/fr
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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve 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
    • 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

Definitions

  • the invention relates to an actuating head of a suction-pressure pump for ejecting a product from a container having a leading to an ejection outlet outlet channel in which a loaded by a spring closure member is arranged, wherein the closure piece in its closed position, the ejection opening under the force of the spring directly seals and released by the pressure exerted by the pressure of the product on actuation of the suction pressure product of the flow through the outlet channel and through the ejection opening against the force of the spring, and wherein a subsequent to the ejection opening first outlet channel of a pipe is surrounded, in which the closure piece is sealingly slidably guided and which is inserted into a bore in the body of the actuating head, which defines between itself and the tube a second outlet channel forming annular space through a third, the wall of the tube Deutschenque ing outlet duct section is connected to the first outlet channel section.
  • the closure piece is designed as a valve slide, which is displaceable transversely to an inlet opening of a lying between the closure piece and the ejection opening outlet channel.
  • the ejection opening is preceded by a vortex chamber in the outlet channel.
  • About the ejection opening of the outlet channel is in any position of the closure piece with the environment in connection. A product residue that is not completely ejected from the outlet channel can therefore come into contact with contaminating and harmful germs, bacteria or viruses contained in the outside or ambient air and with aggressive gases which are harmful to the product, in particular atmospheric oxygen.
  • Such deleterious effects are particularly undesirable or dangerous if the product is a food, drug, deodorant, or other product that is ingested or ingested by humans, even if only a small amount of contaminated product remains in the actuator head. Such a contaminated product residue could be ejected at the next operation after prolonged non-operation with and endanger the health of the user.
  • a spring-loaded closure body which is inserted into a corresponding receiving space in the actuating head, serves to close the product discharge opening.
  • the closure body has, on parts of its outer side, a helically formed groove through which the product to be dispensed can pass, as the product in a rear region of the closure body is conveyed out of the container, which is remote from the dispensing opening.
  • In a front region of the closure body is conically shaped so that it can close the output opening by means of the spring.
  • the closure body together with the dispensing opening and the receiving area receiving the closure body, can be inserted as a prefabricated structural unit into a corresponding recess provided in the actuating head.
  • an annular connecting space is provided between the recess in the actuating head and the structural unit with the closure body.
  • the invention has for its object to provide an actuating head of the type described, the easier to produce and in which the risk of contamination of the product is largely avoided.
  • this object is achieved in an actuating head of the type described above in that the closure piece is made of rubber-elastic material with an excess of the end portion relative to the diameter of the ejection opening.
  • the closure piece has a piston sealing against the inside of the outlet channel with a piston rod which projects in the closed position of the closure piece with an end portion tightly into the ejection opening.
  • the closure piece acts not only as such, but also as a pressure piston which ejects the product remaining after actuation of the suction-pressure pump by the actuating head in the outlet channel under the force of the spring through the ejection opening while blocking the ejection opening.
  • the adjacent to the end portion portion of the piston rod may have a larger diameter than the ejection opening and bear in the closed position of the closure member at the inner edge of the ejection opening under the force of the spring.
  • the section of the piston rod having the larger diameter lays down during the closing movement of the closure piece under the force of the spring with its shoulder surface passing from the larger to the smaller diameter in an additional sealing manner on the inner edge the ejection opening on. At the same time this limits the closing movement.
  • the piston has a circumferential sealing lip, which allows a passage of the product only in the direction of the ejection opening.
  • the sealing lip allows on the one hand, the passage of air from the spring chamber in the outlet channel at the first actuation of the actuating head, so that essentially only the spring force is overcome by the product pressure during product dispensing. The case thereby penetrated from the spring chamber into the outlet air would then be partially mixed with the output and to be issued at the next operation amount of product during the first operation. In the second and each subsequent operation, however, no further air from the spring chamber would get into the outlet because its overpressure has already been reduced and the sealing lip allows the passage of air only in one direction and thus no re-entry of air into the spring chamber. Likewise, penetration of the product across the sealing lip into the spring chamber is prevented.
  • the sealing lip may be formed as a cup sleeve.
  • the cup seal is additionally pressed by the product pressure against the inside of the outlet channel and thus ensures a particularly high sealing effect.
  • the rubber-elastic material may be a plastic. Such a material allows easy production of the closure piece as a one-piece part.
  • the illustrated suction-pressure pump 1 is tightly mounted on the edge of the opening of a container 2 via a sealing ring disc 3 arranged therebetween.
  • the suction-pressure pump 1 has a hollow cylindrical housing 4.
  • the lower end of the housing 4 can be shut off by a check valve with a valve closure ball 5.
  • the valve closure ball 5 is seated in its illustrated in Fig. 1 lower layer on a valve seat 6 tight.
  • a hollow cylindrical piston 7 sealingly against the inside of the housing 4, axially displaceably mounted.
  • the bore 8 of the piston 7 is continued in a piston 7 integrally formed on the hollow piston rod 9.
  • the piston rod 9 is sealed in an opening 10 of an upper closure cap 11 of the housing 4 and container 2 slidably.
  • an actuating head 12 of the suction-pressure pump 1 On the free end of the protruding from the housing 4 piston rod 9, an actuating head 12 of the suction-pressure pump 1 is tightly and firmly placed.
  • the actuating head 12 passes through an outlet channel, consisting of outlet channel sections 13a-13d, which adjoins the bore 8.
  • the outlet passage 13b is formed as an annular space which is bounded by the inside of a bore 14 in the body of the actuating head 12 and the outside of a tube 15 fixedly inserted into the bore 14.
  • the outlet channel section 13c is a hole passing through the wall of the tube 15 and opening into the outlet channel section 13d forming the interior of the tube 15.
  • the tube 15 tapers toward its outer end toward an ejection port 16.
  • closure member 18 In the outlet passage section 13d a loaded by a weak spring 17 closure member 18 disposed axially displaceable.
  • the closure member 18 has a against the inside of the Auslrawkanalabperformings 13d in the tube 15 sealing piston 19 with a piston rod 20 which projects in the closed position shown in Fig. 1 of the closure member 18 with an end portion 20a in the ejection opening 16.
  • the adjacent to the end portion 20 a portion 20 b of the piston rod 20 has a larger diameter than the outlet opening 16 and is in the closed position of the closure member 18 with an oblique transition from larger to smaller diameter at the inner edge of the ejection opening 16 under the force of the spring 17.
  • the piston 19 has a circumferential sealing lip 21 which rests tightly under its own elasticity on the inside of the tube 15 and the outlet passage 13d and allows passage of a medium only in the direction of the ejection opening 16, however, to the spring 17 having chamber 22 blocks.
  • the sealing lip 21 is formed by a cup seal.
  • the closure member 18 is made of rubber-elastic material, in particular an elastomeric plastic with an excess of the end portion 20 a of the piston rod 20 relative to the diameter of the ejection opening sixteenth
  • the piston 7 is in its unactuated position according to FIGS. 1, 3 and 5 with a circumferential at its free end sealing lip 24 close to the inside of the housing 4 at.
  • a collar 25 surrounding the piston 7 above the sealing lip 24 serves to guide the piston 7 during its movement, but leaves a clearance between it and the inside of the housing 4 free.
  • the housing has at the end of a limited by the housing 4 pressure chamber 30 a gradation 31, below which the inner diameter of the housing 4 is slightly larger than the outer diameter of the sealing lip 24 of the piston 7.
  • connection piece 32 at the free lower end of the housing 4 a projecting to near the bottom of the container 2 immersion tube 34 is attached. Above the upper end position of the piston 7 according to FIG. 1, the housing 4 is connected by lateral slots 35 with the interior of the container 2 above the maximum product level.
  • the air contained in the space 30, in the bore 8, in the outlet channel 13a-13d and in the spring chamber 22 partially escape through the ejection opening 16.
  • the return spring 26 presses the piston 7 and the spring 17, the piston 19 in the position shown in Fig. 3 back.
  • resulting negative pressure valve closure ball 5 is lifted up against her in the housing 4 formed ribs 37 from its seat 6.
  • a portion of the product 38 contained in the container 2 is sucked through the dip tube 34 and the open check valve 5, 6 into the space 30 by the negative pressure from the container 2, as shown in Fig. 3.
  • the product 38 is preferably pasty, but may also be a liquid.
  • the check valve 5, 6 is closed again and the piston 19 again pressed against the force of the spring 17 in the position shown in Fig. 2.
  • the product is ejected from the space 30 via the bore 8, the outlet channel 13a-13d and the re-opened ejection opening 16, as shown in Fig. 4.
  • the piston 7 can be pressed with its sealing lip 24 to below the gradation 31.
  • the pressure in the space 30 at the sealing lip 24 and the collar 25 of the piston 7 is degraded by the slots 35 in the space of the container 2 above the product level, so that no further Product 38 is ejected more. This will accurately dose the amount of product dispensed each time it is pressed.
  • the outlet channel 13a-13d is shut off in the closed position of the closure member 18 to the outside completely by the closure member 18.
  • a product residue remaining in the outlet channel therefore can not come into contact with harmful germs, bacteria, viruses, etc. as well as with harmful materials, gases, etc.
  • the open position of the closure member 18 of FIGS. 2 and 4 takes only a short time.
  • a product residue remaining in the outlet channel 13a-13d would be largely expelled during product delivery and could not be contaminated since the open position of the closure piece 18 lasts only for a short time.
  • the closure member 18 acts not only as such, but also as a pressure piston which ejects the remaining after actuation of the actuator head 12 in the portion 13d of the outlet channel product under the force of the spring 17 through the ejection opening 16 and at the same time the ejection opening 16 shuts off.
  • the larger diameter portion 20b of the piston rod 20 sets during the closing movement of the closure member 18 under the force of the spring 17 with its larger diameter from the smaller diameter shoulder surface sealingly on the inner edge of the ejection opening 16 at. At the same time thereby the closing movement of the closure member 18 is limited.
  • the sealing lip 21 allows on the one hand the passage of air from the spring chamber 22 in the outlet channel at the first actuation of the actuating head 12 and consequent displacement of the piston 19 against the force of the spring 17. Therefore, essentially only the force of the spring 17 by the Overcome product pressure during product dispensing. The case thereby penetrated from the spring chamber 22 in the exhaust passage air would then be partially mixed with the output and to be issued at the next operation amount of product at the first actuation. In the second and each subsequent operation, however, no further air from the spring chamber 22 would get into the outlet, because its pressure is already reduced and the sealing lip 21 the passage of air only in one direction and thus no re-entry of air into the spring chamber 22 allows.
  • the sealing lip is formed as a cup seal, it is additionally pressed by the product pressure against the inside of the tube 15 and the portion 13 d of the outlet channel. It therefore ensures a particularly high sealing effect. Due to the formation of the closure piece 18 made of rubber-elastic material and with an excess of its end portion 20a with respect to the inner diameter of the ejection opening 16, the end portion 20a sets particularly firmly in the ejection opening 16 in the closed position of the closure member 18. This results in a particularly high sealing effect of the end portion 20a in the ejection opening 16. A design of the rubber-elastic material of the closure piece 18 made of plastic also allows easy production of the closure member 18 as an integral part.

Landscapes

  • Closures For Containers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Manipulator (AREA)
  • Reciprocating Pumps (AREA)
  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (6)

  1. Tête d'actionnement (12) d'une pompe aspirante et foulante (1) pour la pulvérisation d'un produit (38) vers l'extérieur d'un récipient (2), qui présente un canal de décharge (13a-13d) menant à un orifice de pulvérisation (16), dans lequel canal est disposé un obturateur (18) commandé par un ressort (17), l'obturateur (18) obturant immédiatement dans sa position de fermeture l'orifice de pulvérisation (16) sous l'action du ressort (17) et libérant la pression du produit (38) exercée lors de l'actionnement de la pompe aspirante et foulante (1), son écoulement au travers du canal de décharge (13a-13d) et au travers de l'orifice de pulvérisation (16) contre la tension du ressort (17), une première section du canal de décharge (13d) qui jouxte l'orifice de pulvérisation (16) étant entourée par un tube (15), dans lequel l'obturateur (18) est guidé de manière étanche et mobile et est placé dans un perçage (14) dans le corps de la tête d'actionnement (12), lequel perçage délimite un espace annulaire formant une deuxième section du canal de décharge (13b) entre le tube (15) et lui-même, lequel espace est relié à la première section du canal de décharge (13d) par l'intermédiaire d'une troisième section du canal de décharge (13c) traversant la paroi du tube (15), caractérisée en ce que l'obturateur (18) est composé de matériau élastique en gomme présentant une surmesure de la section finale (20a) par rapport au diamètre de l'orifice de pulvérisation (16).
  2. Tête d'actionnement selon la revendication 1, caractérisée en ce que l'obturateur (18) présente un piston (19) avec une tige de piston (20) formant étanchéité par rapport à l'intérieur du canal de décharge (13a-13d), laquelle tige pénètre hermétiquement dans la position de fermeture de l'obturateur (18) dans l'orifice de pulvérisation (16) avec une section finale (20a).
  3. Tête d'actionnement selon la revendication 2, caractérisée en ce que la section (20b) contiguë de la section finale (20a) de la tige de piston (20) est dotée d'un diamètre plus grand que l'orifice de pulvérisation (16) et, dans la position de fermeture de l'obturateur (18), repose sur le bord intérieur de l'orifice de pulvérisation (16) sous l'action du ressort (17).
  4. Tête d'actionnement selon la revendication 2 ou 3, caractérisée en ce que le piston (19) présente une lèvre d'étanchéité (21) circulaire qui autorise un passage d'un fluide uniquement en direction de l'orifice de pulvérisation (16).
  5. Tête d'actionnement selon la revendication 4, caractérisée en ce que la lèvre d'étanchéité (21) est formée par un manchon de coupelle.
  6. Tête d'actionnement selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le matériau élastique en gomme est un matériau synthétique.
EP03000259A 2002-01-10 2003-01-08 Poussoir d'une pompe aspirante et foulante pour la pulvérisation d'une produit contenu dans un récipient Expired - Lifetime EP1327478B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10200593A DE10200593A1 (de) 2002-01-10 2002-01-10 Betätigungskopf einer Saug-Druck-Pumpe zum Ausspritzen eines Produkts aus einem Behältnis
DE10200593 2002-01-10

Publications (2)

Publication Number Publication Date
EP1327478A1 EP1327478A1 (fr) 2003-07-16
EP1327478B1 true EP1327478B1 (fr) 2007-08-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03000259A Expired - Lifetime EP1327478B1 (fr) 2002-01-10 2003-01-08 Poussoir d'une pompe aspirante et foulante pour la pulvérisation d'une produit contenu dans un récipient

Country Status (6)

Country Link
US (1) US6824021B2 (fr)
EP (1) EP1327478B1 (fr)
AT (1) ATE371502T1 (fr)
DE (2) DE10200593A1 (fr)
DK (1) DK1327478T3 (fr)
ES (1) ES2289187T3 (fr)

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US8225966B2 (en) 2006-03-15 2012-07-24 Seaquist Perfect Dispensing Gmbh Dispensing device
US8240518B2 (en) 2006-05-16 2012-08-14 Seaquist Perfect Dispensing Gmbh Dispensing device and container for a cosmetic liquid
US8261952B2 (en) 2006-09-07 2012-09-11 Seaquist Perfect Dispensing Gmbh Dispensing device
US8286839B2 (en) 2008-08-12 2012-10-16 Aptar Dortmund Gmbh Dispensing device
US8453875B2 (en) 2008-06-20 2013-06-04 Aptar Dortmund Gmbh Dispensing device
US8573449B2 (en) 2006-06-08 2013-11-05 Aptar Dortmund Gmbh Dispensing device having an elastically deformable section for pumping a fluid
US8616417B2 (en) 2009-06-25 2013-12-31 Aptar Dortmund Gmbh Valve and discharge device
US8616416B2 (en) 2008-08-12 2013-12-31 Aptar Dortmund Gmbh Delivery head
US8863994B2 (en) 2007-03-15 2014-10-21 Aptar Dortmund Gmbh Dispensing device

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8225966B2 (en) 2006-03-15 2012-07-24 Seaquist Perfect Dispensing Gmbh Dispensing device
US8602266B2 (en) 2006-03-15 2013-12-10 Aptar Dortmund Gmbh Dispensing device
US9205437B2 (en) 2006-03-15 2015-12-08 Aptar Dortmund Gmbh Dispensing device
US8240518B2 (en) 2006-05-16 2012-08-14 Seaquist Perfect Dispensing Gmbh Dispensing device and container for a cosmetic liquid
US8573449B2 (en) 2006-06-08 2013-11-05 Aptar Dortmund Gmbh Dispensing device having an elastically deformable section for pumping a fluid
US8261952B2 (en) 2006-09-07 2012-09-11 Seaquist Perfect Dispensing Gmbh Dispensing device
US8863994B2 (en) 2007-03-15 2014-10-21 Aptar Dortmund Gmbh Dispensing device
US8453875B2 (en) 2008-06-20 2013-06-04 Aptar Dortmund Gmbh Dispensing device
US8678245B2 (en) 2008-06-20 2014-03-25 Aptar Dortmund Gmbh Dispensing device
US8286839B2 (en) 2008-08-12 2012-10-16 Aptar Dortmund Gmbh Dispensing device
US8616416B2 (en) 2008-08-12 2013-12-31 Aptar Dortmund Gmbh Delivery head
US8616417B2 (en) 2009-06-25 2013-12-31 Aptar Dortmund Gmbh Valve and discharge device

Also Published As

Publication number Publication date
EP1327478A1 (fr) 2003-07-16
DK1327478T3 (da) 2008-02-04
ES2289187T3 (es) 2008-02-01
ATE371502T1 (de) 2007-09-15
DE10200593A1 (de) 2003-07-31
US20030164385A1 (en) 2003-09-04
US6824021B2 (en) 2004-11-30
DE50308038D1 (de) 2007-10-11

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