EP1817243B1 - Nicht belüftete pumpe zur abgabe eines flüssigen produkts und zugehörige abgabevorrichtung - Google Patents

Nicht belüftete pumpe zur abgabe eines flüssigen produkts und zugehörige abgabevorrichtung Download PDF

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Publication number
EP1817243B1
EP1817243B1 EP04805596A EP04805596A EP1817243B1 EP 1817243 B1 EP1817243 B1 EP 1817243B1 EP 04805596 A EP04805596 A EP 04805596A EP 04805596 A EP04805596 A EP 04805596A EP 1817243 B1 EP1817243 B1 EP 1817243B1
Authority
EP
European Patent Office
Prior art keywords
ring
pump
piston
pump according
tube
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 - Fee Related
Application number
EP04805596A
Other languages
English (en)
French (fr)
Other versions
EP1817243A1 (de
Inventor
Jean-Louis Bougamont
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.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
Rexam Dispensing Systems 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 Rexam Dispensing Systems SAS filed Critical Rexam Dispensing Systems SAS
Publication of EP1817243A1 publication Critical patent/EP1817243A1/de
Application granted granted Critical
Publication of EP1817243B1 publication Critical patent/EP1817243B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • 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
    • B05B11/0008—Sealing or attachment arrangements between sprayer and container
    • B05B11/0013—Attachment arrangements comprising means cooperating with the inner surface of the container
    • 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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • 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
    • B05B11/1094—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 having inlet or outlet valves not being actuated by pressure or having no inlet or outlet valve

Definitions

  • the present invention relates to a pump for dispensing liquid product without air intake and a distributor using this pump.
  • This pump is more particularly intended to be mounted on a tank of cosmetic or pharmaceutical liquid products, in the form of cream or gel, closed at its bottom by a movable bottom.
  • Pumps of this type generally comprise a body in which is housed a piston which closes in the end-of-travel position an orifice formed in the lower part of said body and which is equipped with an intake valve such as a valve. ball.
  • the pump described in particular in the EP 0 737 628 has no intake valve and body; the piston moving directly in contact with the wall of the neck of the tank.
  • the piston is in this case constituted by an elastically deformable membrane whose manufacturing process is complex and expensive and which has a low mechanical strength as well as a random dimensional stability.
  • the consumer wants the delivery of the product is carried out smoothly and regularly so as to control the dosage.
  • the present invention aims to solve the technical problems raised by prior pumps of this type.
  • a pump in accordance with the preamble of claim 1 and relying on the prior document DE 203 20 417 U1 , comprising a cylindrical body open at its lower part and closed at its upper part by a piston consisting of a ring mounted on the one hand, around the lower part of a central nozzle-tube, with an axial clearance between two respectively high and low stops in viewing at least one ejection orifice formed on said tube, and sliding, on the other hand, in frictional contact with the inner wall of said body.
  • said body comprises, at the top, an inner sleeve provided with an upper collar for guiding the nozzle tube and a lower collar for locking the piston in the closed position of the ejection orifice.
  • said piston ring has a cylindro-conical inner ring whose upper and lower sections alternately, depending on the pressure of the liquid, in contact with the upper and lower stops of the nozzle-tube so as to open or closing the ejection orifice sealingly in the manner of a valve.
  • the upper face of said ring comprises a circular rib delimiting, with the upper portion of the inner ring, a groove in which is engaged the lower clamping collar of the piston.
  • the lower end of the nozzle tube carries a frustoconical base with a flat edge whose upper face forms the lower stop of the ring of said piston, below the level of the ejection orifice.
  • the lower part of the nozzle tube carries a peripheral shoulder whose lower face forms the upper stop of the ring of said piston, above the level of the ejection orifice.
  • said body is secured, via a transverse spacer, a peripheral fastening flange on a tank.
  • said flange extends upwardly by a projecting rim capable of receiving, from the outside, a cover and, from the inside, the skirt of a distributor pushbutton.
  • transverse spacer may be provided with a lateral flat end stop forming a stop for the skirt of the push button so as to define a dosing volume.
  • Another object of the invention is a dispenser comprising, in particular, the pump according to the invention as well as a product reservoir.
  • the upper end of the nozzle-tube of the pump is connected to an exhaust duct formed in a push-button provided with an outer skirt and an internal cylindrical sleeve intended to cover said nozzle. sliding body by trapping a helical return spring in the spacer space while the reservoir is sealed at the bottom, by a movable bottom.
  • the frictional resistance between the ring and the inner wall of the pump body, on the one hand, and the frictional resistance between the movable bottom and the tank wall, on the other hand, are greater than the frictional resistance between the ring and the tube of said pump.
  • said movable bottom has a central cup whose profile is complementary to that of the frustoconical base of the nozzle tube and / or the lower part of said body of the pump.
  • the pump of the invention has a simplified and very compact structure, in particular because the number of component parts is very small.
  • the pump body is an open cylinder at the bottom and devoid of any valve which facilitates manufacturing operations by molding.
  • the delivery of the product is carried out regularly, ergonomically and controlled by a light consumer support on the push button of the dispenser and without the need to apply a high pressure on the product.
  • the diameter of the lower part of the body corresponds to the diameter of the piston and there is therefore no restriction of the compression surface or the product passage section in the gripping zone.
  • the distributor represented on the Figures 1A and 1B is intended for the delivery and dosing of liquid products without air intake in the tank.
  • the product is therefore kept in a confined atmosphere, protected from the outside environment while being protected from any pollution or contamination which is imperative for sensitive products such as cosmetic or pharmaceutical products.
  • This dispenser is equipped with a pump P comprising a cylindrical body 1 open at full diameter at its lower part where it opens into a tank R of product closed by a movable bottom F.
  • the tank R here further comprises a perforated support base E.
  • the distributor is represented on the Figure 1A in the rest position and / or storage with its cover C.
  • the product fills the entire volume of the tank R and rises in the interior volume of the lower part of the body 1, the lower edge of the body 1 and plunges into the product as shown in the figures.
  • the body 1 is closed at its upper part by a piston which is in contact with the product.
  • the piston consists of a ring 2 mounted around the lower part of a central jet tube 3.
  • the ring 2 has a radially outer double lip 23 which is slidable in frictional contact with the inner wall of the body 1.
  • the ring 2 is assembled on the tube 3 with a slight axial clearance between two respectively low 31a and high stops 32a and opposite at least one ejection orifice 30 formed transversely on the tube 3.
  • the ring 2 has a cylindro-conical inner ring 20 whose upper sections 22 and lower 21 alternately, depending on the pressure transmitted by the liquid, in sealing contact with the upper stops 31a and lower 32a of the tube 3 so as to open or closing the ejection orifice 30 in the manner of a valve as shown in the Figures 2 to 5 .
  • the lower end of the tube 3 carries a frustoconical base 31 with a flat edge whose upper face forms the lower stop 31a, below the level of the orifice 30.
  • the base 31 closes the axial lower end of the tube 3.
  • the lower part of the tube 3 carries a peripheral shoulder 32 whose lower face forms the upper stop 32a of the ring 2.
  • the sections 21, 22 define between them an angle of approximately 160 ° to 170 ° making it possible to provide support in the manner of an arching, respectively, on the outer wall of the tube 3 for the section 22 and on the upper face of the base 31 for the section 21. This reinforced support ensures the tightness of the valve in the closed position.
  • the ring 20 delimits with the tube 3, opposite the orifice 30, a spacer space of revolution whose dimensions are very small and which allows the expansion and the escape of the pressurized product before its passage through the orifice 30 .
  • the inclined upper face of the frustoconical base 31 promotes guiding of the lower section 21 of the ring 20 during its relative upward movement at the opening of the valve.
  • the frictional resistance fb between the ring 20 and the wall of the tube 3 and more particularly between the end of the lower section 21 and the upper face of the base 31 is low (between 50 and 100 g) and, in any case, less than the frictional resistance fa between the double lip 23 of the ring 2 and the inner wall of the body 1 (of the order of 700g).
  • the frictional resistance fb is also lower than the frictional resistance fc between the movable base F and the internal wall of the reservoir R (of the order of 3 to 4 kg), taking into account the relative surfaces of the base 31 and the background F.
  • the body 1 is partially closed, at the top, by an inner sleeve 10 provided with an upper collar 13 for guiding the tube 3 and a lower collar 12 of larger diameter for locking the piston in the closed position. ejection port 30.
  • the upper face of the ring 2 comprises a circular rib 24 delimiting, with the upper portion 22 of the ring 20, a groove 25 in which is engaged the lower collar 12 of the sleeve of the body.
  • the upper end of the nozzle-tube 3 is connected to an exhaust duct 40 formed in a push-button 4 provided with an outer skirt 41 and an internal cylindrical sleeve 42.
  • the sleeve 42 is intended to cap the body 1 slidably by trapping a helical return spring 5 mounted around the tube 3 in the interspace.
  • the lower coil of the spring 5 bears on the upper face of the sleeve 10 coaxially with the upper collar 13.
  • the body 1 is secured, via a transverse spacer 11, a peripheral collar 14 for fixing to the upper edge of the tank R.
  • the flange 14 is extended upwards by a protruding flange 15 capable of receiving, from the outside, the cover C with any latching or screwing means and, from the inside, the skirt 41 of the button. push 4.
  • the movable bottom F comprises a central cup f whose profile is complementary to that of the frustoconical base 31 of the tube 3 and / or the inner part of the body 1 so as to ensure complete emptying of the reservoir.
  • the piston does not find, in its descending run inside the body 1, stop stop, it is provided for the purpose of dosing, to provide a lateral flat 11a on the spacer 11.
  • the lower edge the skirt 41 of the push button 4 then abuts against this flat which allows, in addition to the setting of the spring 5, to define the doses of product to be delivered.
  • a variant could be to limit the stroke of the piston by abutment of the lower edge of the sleeve 42 against the spacer 11 or by pressing against the upper edge of the pump body 1 of the upper wall of the spring housing 5 .
  • the dispenser In the position shown on the figure 2 , the dispenser is at rest with the cover C enclosing the push button 4 and the pump P inactive.
  • the exhaust valve and the ejection port 30 are closed.
  • the section 21 of the ring 20 of the piston is kept in sealing engagement against the bottom stop 31a by the reaction forces of the return spring 5 and the transmission of these forces by the lower collar 12.
  • the frictional contact (resistance fa) between the double lip 23 of the piston and the wall of the body creates a resistance to movement which immobilizes the ring 2 for a period, albeit very short, but sufficient (given the low resistance fb) to allow the separation of the section 21 of the lower stop 3 a and, depending on the value of the axial play, the abutment of the section 22 against the upper stop 32a.
  • the product then infiltrates into the intermediate space between the ring 20 and the tube 3 and begins to escape through the orifice 30 as shown schematically by the arrow on the figure 3 .
  • the delivery phase is initiated.
  • the distribution of the product is carried out regularly via line 40.
  • the tube 3 continues its descent now driving the ring 2 downwards until the skirt 41 abuts against the flattened portion 11a as shown in FIGS. Figures 1B and 4 where the base 31 projects slightly downwardly outside the body 1, still plunging into the product.
  • the ring 2 remains stationary in contact with the wall of the body for a very short time but sufficient for the lower stop 31a to come into contact with the lower section 21 of the ring and closes the valve , as shown on the figure 5 .
  • the mobile bottom F rises in the tank R so as to compensate for the volume of product that has been dispensed.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)

Claims (12)

  1. Pumpe für einen Spender eines flüssigen Produkts ohne Aufnahme von Luft, umfassend einen zylindrischen Körper (1) geöffnet auf seinem unteren Teil und geschlossen auf seinem oberen Teil durch einen Kolben, dadurch gekennzeichnet, dass dieser Kolbens aus einem Ring (2) gebildet ist, der einerseits um den unteren Teil einer zentralen Rohrdüse (3) mit einem axialen Spiel zwischen zwei Anschlägen, einem oberen (32a) und einem unteren (31a), gegenüber mindestens einer Ausstoßöffnung (30), die auf dem Rohr angebracht ist, montiert ist, und andererseits gleitend in Reibungskontakt mit der inneren Wand des Körpers.
  2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass der Körper (1) am oberen Teil eine innere Buchse (10) umfasst, die mit einem oberen Reifen (13) zur Führung der Rohrdüse (3) und einem unteren Reifen (12) zur Blockierung des Kolbens in einer Position des Verschlusses der Ausstoßöffnung (30) versehen ist.
  3. Pumpe nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Ring (2) des Kolbens einen inneren zylindrisch-konischen Ring (30) aufweist, dessen oberer (22) und unterer (21) Abschnitt alternativ, je nach dem Druck der Flüssigkeit, mit dem obern (32a) und dem unteren (31a) Anschlag der Rohrdüse (3) in Kontakt kommt, um die Ausstoßöffnung (30) auf dichte Weise nach Art einer Klappe zu öffnen oder zu schließen.
  4. Pumpe nach Anspruch 2 und 3, dadurch gekennzeichnet, dass die obere Seite des Rings (2) eine ringförmige Rippe (24) aufweist, die mit dem oberen Abschnitt (22) des inneren Rings (20) eine Vertiefung (25) begrenzt, in die der untere Reifen (12) zur Blockierung des Kolbens eingreift.
  5. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das untere Ende der Rohrdüse (3) eine kegelstumpfartige Basis (31) mit flachem Rand trägt, dessen obere Seite den unteren Anschlag (31a) des Rings (2) des Kolbens, unter dem Niveau des Ausstoßöffnung (30), bildet.
  6. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das untere Ende der Rohrdüse (3) einen peripheren Ansatz (32) trägt, dessen untere Seite den oberen Anschlag (32a) des Rings (2) des Kolbens, über dem Niveau des Ausstoßöffnung (30), bildet.
  7. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Körper (1) über einen Querträger (11) mit einem peripheren Kragen (14) zur Befestigung an einem Behälter (R) einstückig ist.
  8. Pumpe nach Anspruch 7, dadurch gekennzeichnet, dass der Kragen (14) sich nach oben hin durch einen hervorspringenden Rand (15) verlängert, der dazu in der Lage ist, außen eine Haube (C) und innen das Hemd (41) eines Druckknopfes (4) des Spenders aufzunehmen.
  9. Pumpe nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass der Querträger (11) mit einer seitlichen Flachstelle (11a) versehen ist, die einen Endanschlag für das Hemd (41) eines Druckknopfes (4) des Spenders bildet.
  10. spender, umfassend eine Pumpe nach einem der vorhergehenden Ansprüche und einen Behälter (R), dadurch gekennzeichnet, dass das obere Ende der Rohrdüse (3) der Pumpe mit einem Auslasskanal (40) verbunden ist, der in einem Druckknopf (4) angebracht ist, versehen mit einem äußeren Hemd (41) und einer inneren zylindrischen Hülse (42), dazu vorgesehen, den Körper (1) gleitbar zu kapseln, indem eine schraubenförmige Rückstellfeder (5) im eingefügten Raum eingeschlossen wird, während der Behälter (R) an der unteren Seite auf dichte Weise durch einen beweglichen Boden (F) verschlossen wird.
  11. Spender nach Anspruch 10, dadurch gekennzeichnet, dass der Reibungswiderstand (fa) zwischen dem Ring (2) und der inneren Wand des Körpers (1) der Pumpe einerseits und der Reibungswiderstand (fc) zwischen dem Boden (F) und der Wand des Behälters (R) andererseits höher als der Reibungswiderstand (fb) zwischen dem Ring (2) und dem Rohr (3) der Pumpe ist.
  12. Spender nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass der bewegliche Boden (F) eine zentrale Kupelle (f) aufweist, deren Profil dasjenige der kegelstumpfartigen Basis (31) der Rohrdüse (3) und/oder den unteren Teil des Körpers (1) der Pumpe ergänzt.
EP04805596A 2004-11-30 2004-11-30 Nicht belüftete pumpe zur abgabe eines flüssigen produkts und zugehörige abgabevorrichtung Expired - Fee Related EP1817243B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2004/003073 WO2006058969A1 (fr) 2004-11-30 2004-11-30 Pompe pour distribution de produit liquide sans reprise d'air et distributeur associe

Publications (2)

Publication Number Publication Date
EP1817243A1 EP1817243A1 (de) 2007-08-15
EP1817243B1 true EP1817243B1 (de) 2011-01-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04805596A Expired - Fee Related EP1817243B1 (de) 2004-11-30 2004-11-30 Nicht belüftete pumpe zur abgabe eines flüssigen produkts und zugehörige abgabevorrichtung

Country Status (4)

Country Link
EP (1) EP1817243B1 (de)
CN (1) CN101068728B (de)
DE (1) DE602004031159D1 (de)
WO (1) WO2006058969A1 (de)

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IT1393228B1 (it) * 2009-03-02 2012-04-11 Taplast Srl Unita' per l'erogazione di fluidi o miscele e relativo dispositivo di erogazione.
TW201138976A (en) * 2010-01-08 2011-11-16 Mtek Smart Corp Coating method and device
USD764805S1 (en) 2013-12-16 2016-08-30 Colgate-Palmolive Company Toothbrush
USD760499S1 (en) 2013-12-16 2016-07-05 Colgate-Palmolive Company Toothbrush
USD765985S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
USD765984S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
USD753922S1 (en) 2013-12-16 2016-04-19 Colgate-Palmolive Company Toothbrush
USD764175S1 (en) 2013-12-16 2016-08-23 Colgate-Palmolive Company Toothbrush
USD765983S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
USD765986S1 (en) 2013-12-16 2016-09-13 Colgate-Palmolive Company Toothbrush
KR101590865B1 (ko) * 2014-08-28 2016-02-02 (주)연우 디스펜서 용기
CN105217166B (zh) * 2015-11-11 2020-09-11 江阴民诚塑料制品有限公司 一种真空瓶
FR3047186B1 (fr) * 2016-02-01 2020-02-14 Albea Lacrost Dispositif de purge d'air pour distributeur de produit liquide sans reprise d'air
CN111530655B (zh) * 2020-05-08 2021-09-07 浙江黄岩康宝利清香剂厂 一种可以自由控制出水量的香水喷头
KR102385639B1 (ko) * 2020-12-23 2022-04-14 주식회사 삼화 화장품 용기

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DE3521580A1 (de) * 1985-02-21 1986-08-21 Bayer Ag, 5090 Leverkusen Ausgabeeinrichtung fuer fliessfaehige medien
US6045008A (en) * 1998-04-30 2000-04-04 Calmar-Monturas, S.A. Fluid pump dispenser
EP1249278A1 (de) * 2001-04-10 2002-10-16 Taplast S.p.A. Pumpenspender
DE20320417U1 (de) * 2003-11-17 2004-10-14 Beiersdorf Ag Spender mit kosmetischen Zubereitungen, die Hilfsmittel zur Gängighaltung des Spenders enthalten
DE10354052A1 (de) * 2003-11-17 2005-06-16 Beiersdorf Ag Kosmetikum mit empfindlichen Inhaltsstoffen
DE20317832U1 (de) * 2003-11-18 2004-01-22 Wilden Ag Hautpflege-Kit

Also Published As

Publication number Publication date
EP1817243A1 (de) 2007-08-15
WO2006058969A1 (fr) 2006-06-08
CN101068728A (zh) 2007-11-07
DE602004031159D1 (de) 2011-03-03
CN101068728B (zh) 2011-02-16

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