EP1071516B1 - Dispositif de pulverisation de mousse - Google Patents

Dispositif de pulverisation de mousse Download PDF

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Publication number
EP1071516B1
EP1071516B1 EP99912000A EP99912000A EP1071516B1 EP 1071516 B1 EP1071516 B1 EP 1071516B1 EP 99912000 A EP99912000 A EP 99912000A EP 99912000 A EP99912000 A EP 99912000A EP 1071516 B1 EP1071516 B1 EP 1071516B1
Authority
EP
European Patent Office
Prior art keywords
unit
piston
cylinder
liquid
foam
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
EP99912000A
Other languages
German (de)
English (en)
Other versions
EP1071516A1 (fr
Inventor
Jeroen De Regt
Roy Van Swieten
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.)
Keltub BV
Original Assignee
Keltub BV
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 Keltub BV filed Critical Keltub BV
Publication of EP1071516A1 publication Critical patent/EP1071516A1/fr
Application granted granted Critical
Publication of EP1071516B1 publication Critical patent/EP1071516B1/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
    • B05B11/01—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
    • B05B11/1087—Combination of liquid and air pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
    • B05B7/0031—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns
    • B05B7/0037—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like

Definitions

  • the invention relates to a foam spray device according to the preamble of patent claim 1.
  • Such a foam spray device is known, for example, from International Patent Application WO-A-93/13829.
  • a foam spray device comprising a container containing a foamable liquid, a valve, an outlet opening for the foam formed and a screen between the outlet port and the valve to obtain the desired mixture of liquid and air.
  • a perforated disc is provided between the valve and the screen with peripherally disposed apertures such as holes or slots to better mix the liquid-air mixture.
  • the present foam spray device is formed of a large number of individual parts made of various materials such as plastics and metals. The production of such a foam spray device is thereby relatively expensive. Another disadvantage of the present foam spraying device is that, by repeatedly actuating the pump, a sufficient overpressure in the container must first be created before foam can be formed.
  • a foam sprayer having a fluid thrust piston or fluid pump and a compressed air pump each having an inlet and an outlet valve.
  • the compressed air pump is coaxially immediately adjacent to the media pump and at the same time by a cap-shaped handle served.
  • the rear end of the piston of the thrust piston pump is provided with a long Kofbenschaft, in which a shaft is arranged with a disc-shaped valve closing part.
  • a return spring is provided between the bottom wall and the valve closing part.
  • To foam a mixing chamber is provided with an adjoining foaming.
  • This foam spraying device also has a large number of individual parts, which have a particularly complex shape, so that a proper interaction can be ensured. By juxtaposing the compressed air pump and the media pump, this device has a considerable length, which complicates the handling zu Intelligentd.
  • French patent application FR-A-2 317 969 discloses a nebulizing apparatus having two pumps for the air and for the liquid provided between the spray head and the liquid container.
  • the liquid pump consists of two mutually displaceable cylinder tubes, of which the lowermost tube by means of a valve body with a hollow plunger to the liquid container is lockable.
  • the spray cap also forms the cylinder for the air pump, which is movable up and down within a shorter cylinder part with a larger diameter.
  • the spray cap also has at the top of a spray nozzle with a mixing chamber, which is connected via valve-like structures with the air pump and the liquid pump. In a very elaborate way with small channels, the connection between the cylinder parts of the air pump and the liquid pump is guaranteed. Since no mixing chamber is provided with a foaming, no foam can be produced with the present atomizer.
  • this atomizer device has a lot of items made of many different materials.
  • the suction pipe made of an extruded polyethylene and the atomizer cone in the injection molding of polyethylene be prepared.
  • the valve body and the plunger may be further made of a low-density polyethylene.
  • the present invention is based on the object to improve a foam spraying device of the present type so that it consists of much fewer items and the foam generation can be made in a simple way.
  • the inventive foam spray device for a liquid container with an air suction, a mixing chamber for the air-liquid mixture and a spray head with a foam outlet has between the spray head and the liquid container a first piston-cylinder unit for the air and a second piston-cylinder unit for the liquid are each provided with an inlet valve and an outlet valve and which are coupled in operative connection with each other.
  • the foam spraying device according to the invention has the great advantage that both compressed air and liquid is ejected with a hand movement, while in the expansion of the spray head air and liquid are sucked into separate chambers again.
  • a large amount of foam without the usual fuel gases can be generated in a quick and easy way.
  • the inventive foam spray device is further characterized in that the cylinder of the first unit and the piston of the second unit are integrally formed into an intermediate part and that the piston and the cylinder of the second unit are integrally formed into a lower part, such that the intermediate part and the lower part mesh with each other movable.
  • the piston of the second unit is formed eccentrically to the cylinder of the first unit.
  • piston of the second unit is concentric with the cylinder of the first unit, i. is arranged within it. This has the advantage that the insert part containing the mixing chamber is made shorter, and thus optimum design of the foam spraying device can be achieved.
  • the pistons of the two units are each provided with a sealing ring in order to ensure optimum suction of air and liquid.
  • the mixing chamber is formed according to claim 5 of an insert between the spray head and the intermediate part.
  • the mixing chamber having a tapered inlet opening for the air and a tapered inlet opening for the liquid.
  • the mixing chamber having a tapered inlet opening for the air and a tapered inlet opening for the liquid.
  • a foam chamber are provided with a second fine-mesh sieve.
  • the spray head, the insert, the intermediate part and the lower part made of a hard plastic material produced by injection molding.
  • the preparation of the foam spray device is advantageously carried out according to claim 10 by injection molding of a two-component plastic.
  • the preparation of the foam spraying device according to the invention is thus much simpler and thus less expensive since only a few individual parts are required.
  • FIGS. 1 and 2 show a cross section through a foam spraying device 1, which can be screwed onto a container or bottle (not shown here) is.
  • This device 1 essentially has four parts, namely a spray head 2, a lower part 4 provided with a screw thread 3, an intermediate part 5 and an insert part 6.
  • the spray head 2 essentially has a circular cylindrical jacket surface 8 with a foam tube 10 forming a foam outlet opening 9 on.
  • the insert 6 is formed by a circular cylindrical flow chamber 12 for the liquid, a connecting tube 13, a mixing chamber 14 with a tapered inlet opening 15 for air and a tapered inlet opening 16 for liquid, and a foam chamber 17 with two circular screens 18 and 19.
  • the intermediate part 5 consists essentially of a cylindrical air chamber 20 and a circular cylindrical piston 21 for the liquid, which are interconnected by means of a circular plate 22 (see Figure 4).
  • the piston 21 also has a tubular attachment 23 with a smaller diameter.
  • Serving as a valve rubber-elastic disc 24 is connected via a web 25 with an inwardly curved sealing ring 26.
  • a passage 27 between the piston 21 and the attachment 23 is provided.
  • an inlet opening 28 (see FIG. 5) and an outlet opening 29 are provided in the air chamber 20 and are sealed by rubber-elastic disks designed as valves - only the disk 30 of the outlet opening 29 can be seen.
  • the lower part 4 has an outer ring 35 with the screw thread 3 and forms a cylindrical piston 37 for the air and a circular cylindrical liquid chamber 38, which are connected to each other via a designed as a cut circular plate web 39.
  • the liquid chamber 38 is provided with a suction pipe 40 of smaller diameter, which projects into the non-illustrated container (bottle).
  • the piston 37 is provided on the air chamber 20 opposite side with an inwardly curved sealing ring 41 which is embedded in a seat 42.
  • a valve seat 43 is provided, in which a rubber-elastic disc 44 is inserted as a valve.
  • the disc 44 is connected to an L-shaped connecting piece 45, which is passed through a passage 46 between the liquid chamber 38 and the intake pipe 40.
  • cylindrically shaped air chamber 20 and the correspondingly cylindrical piston 37 form a first piston-cylinder unit in order to press the air into the mixing chamber 14.
  • the circular cylindrical piston 21 and the circular cylindrical fluid chamber 38 form a second piston-cylinder unit for the liquid.
  • the rubber-elastic discs 30 and 44 serve as intake valve and the non-illustrated disc of the outlet opening 29 and the disc 24 as an outlet valve.
  • a coil spring 50 is provided between the intermediate part 5 and the lower part 4 in the region between the air chamber 20 and the liquid chamber 38, which on the one hand on a tubular projection 51 in the air chamber 20 and on the other hand in a blind tube 52 of the Piston 37 is inserted.
  • the two parts 4 and 5 are held in the rest state to a certain distance from each other (shown in Figures 1 and 3 state).
  • the spray head 2 is pressed against the spiral or compression spring 50 down.
  • the air contained in the air chamber 28 is pressed via the outlet opening 29 and the valve 31 into the mixing chamber 14.
  • the liquid present in the liquid chamber 38 is also conveyed through the compression via the flow chamber 12 into the mixing chamber 14.
  • the air flow thus mixes in the mixing chamber with the liquid and this air-liquid mixture is conveyed through the first sieve 18 into the foam chamber 17, where the foam thus formed is forced through the second sieve 19 and through the foam tube 10 from the outlet 9 of the spray head flows.
  • the spray head 2 is released again, so that the intermediate part 5 and the lower part 4 are pushed apart by the coil spring 50 and air is sucked through the suction port 28 into the air chamber 20.
  • the spray head 2, the lower part 4, the intermediate part 5 and the insert part 6 are made of a plastic such as thermosetting plastic by a known injection molding process.
  • a plastic such as thermosetting plastic
  • negative molds are placed in an injection mold and the plastic brought to the plasticizing temperature is injected under high pressure into the injection mold.
  • the rubber-elastic parts discs 30 and 31 with connecting bar 32, disc 24 with sealing ring 26 and connecting web 25, washer 44 and sealing ring 41 with L-shaped connecting web 45
  • an elastomer such as LDPE or the like
  • the described foam spray device 1 is not limited exclusively to the illustrated embodiment.
  • the circular cylindrical piston 21 may be arranged instead of eccentric in the axis of the intermediate part 5, wherein the compression spring 50 then surrounds the piston 21 and the insert part 6 is designed correspondingly shorter. Because only very few parts are needed for the production of the foam spray device 1, which can now be made much faster in a simple manufacturing process, a material-saving and thus environmentally friendly production is possible. The energy costs for the production of the foam spray device 1 can be reduced enormously compared to the known methods.

Landscapes

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

Abstract

L'invention concerne un nouveau dispositif de pulvérisation de mousse (1) destiné à un contenant de liquide. Ce dispositif comprend une unité d'aspiration d'air (20), une chambre de mélange (14) pour le mélange air-liquide, et une tête de pulvérisation (2) comportant une ouverture de sortie (9) pour la mousse. Une première unité cylindre-piston (20; 37) pour l'air et une deuxième unité cylindre-piston (21; 38) pour le liquide sont prévues entre la tête de pulvérisation (2) et le contenant de liquide. Ces deux unités sont pourvues chacune d'une soupape d'entrée (30; 44) et d'une soupape de sortie (31; 24) et sont accouplées de manière à pouvoir coopérer l'une avec l'autre.

Claims (11)

  1. Dispositif de projection de mousse (1) pour un récipient de liquide avec une unité de piston et cylindre (20 ; 37) pour l'air et une unité de piston et cylindre (21 ; 38) pour le liquide, les unités de piston et cylindre (20, 37 ; 21, 38) possédant chacune une soupape d'entrée (30 ; 44) et une soupape de sortie (24) et étant reliées entre elles en liaison active, avec une chambre de mélange (14) pour le mélange d'air et de liquide et une tête de pulvérisation (2) présentant une ouverture de sortie de la mousse (9), caractérisé en ce que le cylindre (20) de la première unité et le piston (21) de la seconde unité sont réunis d'un seul tenant pour former une partie intermédiaire (5) et le piston (37) de la première unité et le cylindre (38) de la seconde unité étant également réunis d'un seul tenant pour former une partie inférieure (4), ou que le cylindre (20) de la première unité et le piston (21) de la seconde unité sont réunis pour former une partie intermédiaire (5) par l'intermédiaire d'une plaque circulaire (22) et le piston (37) de la première unité et le cylindre (38) de la seconde unité sont réunis pour former une partie inférieure (4) au moyen d'une barrette (39), de telle sorte que la partie intermédiaire (5) et la partie inférieure (4) se mettent en prise l'une dans l'autre de manière mobile l'une par rapport à l'autre.
  2. Dispositif selon la revendication 1, caractérisé en ce que le piston (21) de la seconde unité est excentré par rapport au cylindre (20) de la première unité.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le piston (21) de la seconde unité est concentrique par rapport au cylindre (20) de la première unité.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les pistons (21 ; 37) des deux unités sont pourvus chacun d'un joint d'étanchéité (26 ; 41).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la chambre de mélange (14) est formée par une partie d'insert (6) entre la tête de pulvérisation (2) et la partie intermédiaire (5).
  6. Dispositif selon la revendication 5, caractérisé en ce que la chambre de mélange (14) possède une ouverture d'entrée (16) resserrée en cône pour l'air et une ouverture d'entrée (15) resserrée en cône pour le liquide.
  7. Dispositif selon la revendication 6, caractérisé en ce qu'il est prévu, après l'ouverture d'entrée de l'air (16) et l'ouverture d'entrée du liquide (15) dans le sens de l'écoulement, un filtre (18) à maillage fin.
  8. Dispositif selon la revendication 7, caractérisé en ce qu'il est prévu après le premier filtre (18) une chambre de moussage (17) et un second filtre (19) à maillage fin.
  9. Dispositif selon l'une quelconque des revendications 1 bis 8, caractérisé en ce que la tête de pulvérisation (2), la partie d'insert (6), la partie intermédiaire (5) et la partie inférieure (4) se composent d'une matière plastique fabriquée par moulage par injection.
  10. Procédé de fabrication d'un dispositif de projection de mousse selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la tête de pulvérisation (2), l'unité de piston et cylindre (20 ; 37) pour l'air et l'unité de piston et cylindre (21 ; 38) pour le liquide sont fabriquées par moulage par injection d'une matière plastique à deux composants.
  11. Procédé de fabrication selon la revendication 10, caractérisé en ce que les pièces servant de soupapes (30 ; 24 ; 44) et de joints d'étanchéité (26 ; 41) en matériau élastique caoutchouteux sont entourées des pièces correspondantes (5 ; 4) pendant le moulage par injection.
EP99912000A 1998-04-17 1999-04-18 Dispositif de pulverisation de mousse Expired - Lifetime EP1071516B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH87998 1998-04-17
CH87998 1998-04-17
PCT/IB1999/000704 WO1999054054A1 (fr) 1998-04-17 1999-04-18 Dispositif de pulverisation de mousse

Publications (2)

Publication Number Publication Date
EP1071516A1 EP1071516A1 (fr) 2001-01-31
EP1071516B1 true EP1071516B1 (fr) 2006-01-25

Family

ID=4197313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99912000A Expired - Lifetime EP1071516B1 (fr) 1998-04-17 1999-04-18 Dispositif de pulverisation de mousse

Country Status (9)

Country Link
US (1) US6547162B1 (fr)
EP (1) EP1071516B1 (fr)
JP (1) JP2002512120A (fr)
CN (1) CN1105605C (fr)
AU (1) AU3049599A (fr)
BR (1) BR9910127A (fr)
CA (1) CA2328931C (fr)
DE (1) DE59913081D1 (fr)
WO (1) WO1999054054A1 (fr)

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US7431182B2 (en) * 2004-11-20 2008-10-07 Ciavarella Nick E Dispenser with suction chamber
US7802701B2 (en) 2005-01-14 2010-09-28 Rieke Corporation Up-lock seal for dispenser pump
CN2839636Y (zh) * 2005-08-30 2006-11-22 林添大 泡沫泵
NL1031092C2 (nl) * 2006-02-07 2007-08-08 Airspray Nv Zelfreinigende schuimafgifteinrichting.
CN102665924B (zh) * 2009-12-18 2015-12-02 宝洁公司 个人护理组合物发泡产品和发泡分配器
CA2828086C (fr) 2010-03-10 2018-07-31 Nuvo Research Inc. Formulation expansible
JP5630862B2 (ja) * 2010-10-22 2014-11-26 株式会社三谷バルブ 泡吐出式のポンプ機構およびこのポンプ機構を備えたポンプ式製品
CA2882737A1 (fr) * 2012-08-21 2014-02-27 Arminak & Associates, Llc Generateur de mousse vertical par pression manuelle
US9586217B2 (en) * 2012-10-04 2017-03-07 Arminak & Associates, Llc Mixing chamber for two fluid constituents
CN104210745B (zh) * 2014-07-29 2016-07-06 余姚市特力喷雾器有限公司 泡沫泵
MY186715A (en) 2014-10-02 2021-08-12 Unilever Plc Liquid dispenser with framed refill receiving bay
US10144024B1 (en) * 2017-06-01 2018-12-04 Yuanhong MEI Single-hand pressed foam pump head and container thereof
US11260355B2 (en) 2017-10-17 2022-03-01 Kao Corporation Apparatus for making content liquid foamy for discharge and systems and methods thereof
JP7330617B2 (ja) * 2019-05-31 2023-08-22 株式会社吉野工業所 泡吐出容器
USD980069S1 (en) 2020-07-14 2023-03-07 Ball Corporation Metallic dispensing lid
IL313184A (en) 2021-11-29 2024-07-01 Ironwood Pharmaceuticals Inc Medicinal preparations for the treatment of visceral pain

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Also Published As

Publication number Publication date
WO1999054054A1 (fr) 1999-10-28
EP1071516A1 (fr) 2001-01-31
CN1297382A (zh) 2001-05-30
WO1999054054A9 (fr) 2000-02-17
DE59913081D1 (de) 2006-04-13
BR9910127A (pt) 2001-01-09
CN1105605C (zh) 2003-04-16
CA2328931C (fr) 2004-09-21
AU3049599A (en) 1999-11-08
CA2328931A1 (fr) 1999-10-28
US6547162B1 (en) 2003-04-15
JP2002512120A (ja) 2002-04-23

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