EP3615224A1 - Tete de distribution de produit fluide. - Google Patents
Tete de distribution de produit fluide.Info
- Publication number
- EP3615224A1 EP3615224A1 EP18726519.4A EP18726519A EP3615224A1 EP 3615224 A1 EP3615224 A1 EP 3615224A1 EP 18726519 A EP18726519 A EP 18726519A EP 3615224 A1 EP3615224 A1 EP 3615224A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- spray
- suction chamber
- dispensing head
- nozzle
- 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.)
- Granted
Links
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
- B05B11/1097—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 with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the 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
- B05B11/01—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
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/40—Filters located upstream of the spraying outlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
- B05B15/531—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using backflow
Definitions
- the present invention relates to a fluid dispensing head intended to be associated with a dispensing member such as a pump or a valve.
- the head may be in the form of a pusher and define a bearing surface on which the user can exert a thrust force to actuate the dispensing member.
- the dispensing head may be integrated with, or mounted on, the dispenser member. This kind of fluid dispensing head is frequently used in the fields of perfumery, cosmetics or pharmacy.
- a conventional dispensing head for example of the push-type, comprises:
- connection sleeve intended to be connected to an outlet of a dispensing member, such as a pump
- an axial mounting housing in which a pin extends, defining a side wall and a front wall, and
- a bucket-shaped nozzle comprising a substantially cylindrical wall, one end of which is closed by a spray wall forming a spray orifice, the nozzle being mounted along an axis X in the axial mounting housing with its cylindrical wall engaged around the spindle and its spray wall in axial abutment against the front wall of the spindle.
- a nozzle comprising a spray wall pierced with several spray holes of substantially identical or perfectly identical diameter, of the order of 1 to 100 ⁇ .
- Such a spray wall would generate a spray whose droplet size is relatively homogeneous.
- WO2015194962 describes several embodiments of a nozzle comprising a spray wall pierced with several holes. and one or more filters arranged upstream of the spray wall.
- the clogging or clogging of the nozzle was due to fine particles being suspended in the fluid or from the manufacture, assembly or operation of the dispensing member (pump). It is only after several series of tests that the cause of this plugging or clogging of the nozzle has been identified: it seems to come from the drying or the strong increase of viscosity of the fluid product at the level of the jet itself. Thus, solid or pasty residues would form in the nozzle and clog the spray wall and / or filter (s), which would lead to alteration, or even stop, the spray.
- the present invention proposes that the head comprises a suction chamber having a variable volume, so that the volume of the suction chamber decreases when pressure is exerted on the bearing surface and increases when the pressure on the bearing surface is released.
- the suction chamber generates a suction or "sniffing" which allows the fluid to be removed from the spray wall and / or filter (s) by raising the fluid in the suction chamber. It suffices to adapt the volume variation of the suction chamber to the volume defined by the spray wall alone or the spray wall to the filter upstream.
- the spray holes have a diameter of the order of 1 to 100 ⁇ , advantageously of the order of 5 to 30 ⁇ , and preferably of the order of 10 to 20 ⁇ .
- the dispensing head further comprises at least one filter upstream of the spray wall.
- the filter may be in the form of a filter plate having filter holes that are larger than the spray holes, but smaller in diameter than the spray holes.
- the filter may also be in the form of a filter block forming a network of open cavities.
- a same nozzle may include both one or more filter plates and one or more filter blocks.
- the variation in volume of the suction chamber is advantageously greater than the cumulative volume of the spray holes, when there is no filter. Otherwise, an intermediate space is formed between the spray wall and the filter, the volume variation of the suction chamber then being advantageously greater than the cumulative volume of the spray holes, the intermediate space and the filter holes and / or the network of open cavities.
- the suction chamber may comprise a piston or an elastically deformable wall.
- the dispensing head may be in the form of a pusher, comprising:
- connection sleeve intended to be connected to an outlet of a dispensing member, such as a pump
- suction chamber is formed between the connecting sleeve and the inlet well or between the inlet well and the supply conduit.
- the spirit of the invention lies in emptying the multi-hole nozzle of the fluid that it contains after the spraying phase.
- the suction chamber integrated in the push-button makes it possible to create a depression just after the spraying phase which has the effect of sucking the fluid contained in the nozzle and store it in the suction chamber until the next spraying phase.
- the nozzle is certainly empty of any fluid, so there is no risk of clogging or clogging by drying, formation of solid residues or increase in viscosity.
- FIG. 1 is a vertical cross-sectional view through a pump equipped with a dispensing head incorporating a suction chamber according to a first embodiment of the invention
- FIG. 2a is an enlarged view at rest of the dispensing head of FIG. 1,
- FIG. 2b is an enlarged actuated view of the dispensing head of FIG. 2,
- Figure 3a and 3b are views; respectively in perspective and in cross section, of the nozzle of the preceding figures,
- FIG. 3c represents the volume of fluid product present in the nozzle of FIGS. 3a and 3b
- FIGS. 4a and 4b are views respectively similar to those of FIGS. 3b and 3c for a second embodiment of the nozzle according to the invention.
- Figures 5, 6a and 6b are views respectively similar to those of Figures 1, 2a and 2b for a second embodiment of the suction chamber.
- the dispensing head T comprises three essential components, namely a head body 1 and a nozzle 2 and a piston 3. These parts can be made by injection molding plastic material.
- the head body 1 is preferably made in one piece: it can however be made from several parts assembled to each other. It is the same for the nozzle 2 which can be made monobloc mono-material, overmoulding or bi-injection of several materials or by mechanical assembly.
- the head body 1 comprises a substantially cylindrical peripheral skirt 10 which is closed at its upper end by a plate 16.
- the head body 1 internally defines an inlet well 11 which is open downwards and closed at its upper end. by the plate 16.
- the head body 1 also defines a feed duct 13 which connects the inlet well 1 1 to a mounting housing 12, as can be seen in Figures 1 and 3.
- the mounting housing axial 12 is of cylindrical overall configuration, thereby defining an inner wall which is substantially cylindrical.
- the supply duct 13 opens into the mounting housing 2 centrally. It can also be noted that the inner wall of the mounting housing 12 has hooking profiles for better retention of the nozzle 2.
- the head body 1 also defines a sliding shaft 14 which extends downwardly concentrically to the inlet well 1 1. This sliding shaft is cylindrical internally and has on its outer wall a retaining profile, for example in the form of a small shoulder to the outside.
- the head body 1 can be engaged in a covering cap 4 comprising upper support surface 41 for a finger and a lateral envelope 42 forming a lateral opening 43 for the passage of the nozzle 2.
- the bearing surface is formed by the plate 16 of the head body 1.
- the nozzle 2 has a substantially conventional overall configuration in the form of a cup which is open at one end and closed at its opposite end by a spray wall D, advantageously in the form of a small plate, at which several holes or spray orifices DO are formed.
- the nozzle 2 comprises a nozzle body 20 of substantially cylindrical overall shape which preferably has an axial symmetry of revolution. In other words, the nozzle 2 does not need to be oriented angularly before its presentation in front of the inlet of the axial mounting housing 12.
- the nozzle body 20 forms an external mounting wall 21 which is advantageously provided with attachment reliefs adapted to cooperate with the attachment profiles of the mounting housing 12.
- the nozzle body 20 internally forms a chamber defined by an inner wall 23 forming several steps of decreasing diameters. On its outer end face, the nozzle body 20 forms a planar annular surface 25 defining a central opening 26.
- the spray wall D is integral with the nozzle body 20, advantageously at the central opening 26.
- the spray wall D is fixed to the nozzle body 20 by any means, such as overmoulding, bi-injection, Mono-material monoblock molding, latching, crimping, swaging, force mounting, etc.
- the spray wall D may be a single-piece monoblock plate, an assembly of several parts or a multilayer product, for example laminated. It can be made of metal, plastic, ceramic, glass or a combination of these. More generally, any material that can be pierced with small holes or holes is usable.
- the thickness of the spray wall D, at the level where the holes DO are formed, is of the order of 1 to 100 ⁇ .
- the number of holes OD is of the order of 20 to 500.
- the diameter of the spray wall D, at the level where the holes DO are formed is of the order of 0.5 to 5 mm.
- the holes OD are pierced in the spray wall D while it is already integral with the body of nozzle 20.
- the nozzle body 20 as a device for manipulating the spray wall D for its drilling operation, which can for example be carried out by laser.
- the spray wall D is a very small part, and therefore difficult to handle.
- the drilling of the holes D0 with the spray wall D pre-mounted on the nozzle body 20 is a process that can be implemented regardless of the size of the holes OD, that is to say independently of the that the distributor head incorporates a suction chamber.
- the nozzle 2 also comprises two filters F1 and F2 arranged upstream of the spray wall D.
- the filter F1 is mounted on a step of the inner wall 23 behind the spray wall D defining between them a first intermediate space E1.
- the filter F1 is a plate substantially similar to the spray wall D with filter holes FO which are advantageously more numerous than the spray holes DO, but which advantageously have a smaller diameter than the DO spray holes. It may also be noted that the diameter of the filter plate F1 is greater than that of the spray wall D. Its thickness may be substantially the same as that of the spray wall D, or even slightly greater.
- the filter F2 is also mounted on a step of the inner wall 23 upstream of the filter F1 by defining between them a second intermediate space E2.
- the filter F2 is in the form of a block of porous material, advantageously rigid, such as Porex ®, which forms a network of open cavities, whose average pore size may be of the order of 7 to 100 microns .
- FIG. 3c represents the volume of the fluid product in the filter F1, namely VF1, the first intermediate space E1, namely VE1, and the spray wall D, namely VD.
- FIG. 4a shows a second embodiment for a nozzle 2 ', which can be implemented in the distributor head T instead of the nozzle 2.
- This nozzle 2' comprises a spray wall D 'on which the body of nozzle 20 'has been overmolded.
- the spray wall D ' also defines a series of small spray holes DO' of the order of 1 to 100 microns in diameter.
- the nozzle 2 ' comprises only one filter F2' which may be substantially identical to the filter F2, that is to say formed by a piece or a block of porous material, advantageously rigid, such as Porex ®, which forms a network of open cavities, whose average pore size may be of the order of 7 to 100 microns.
- FIG. 4b is similar to FIG. 5c and shows the volume of the fluid product in the intermediate space E1 ', namely VE1', and the spray wall D ', namely VD'.
- the distributor head T integrates a suction chamber 30 which is formed by the cooperation of the head body 1 with the piston 3.
- a spring 33 which may be an elastically deformable ring.
- the piston 3 is thus urged away from the inlet well 1 1 while remaining integral with the sliding shaft 14 through the holding profile of the shaft 14 which cooperates with a ring 32 of the piston 3 which is engaged around the barrel 14.
- the piston 3 is at rest and in FIG. 2b the piston 3 is moved as far as possible towards the inlet well 1 1 by compressing the spring 33.
- the piston also comprises a sleeve 35 which is engaged in the barrel sliding member 14 being connected at its lower end to the ring 32 and forming at its upper free end a piston lip 34 which in sealing contact with the cylindrical inner wall of the sliding barrel 14.
- the sleeve 35 also defines a passage central 31.
- the piston 3 and the head body 1 define between them the suction chamber 30 whose volume varies with the sliding displacement of the piston 3.
- the sleeve 35 is connected to the free end of an actuating rod P2 of a dispensing member P, such as a pump or a valve.
- the actuating rod P2 is movable back and forth along the axis Y against an internal spring (not shown).
- the stiffness of the spring 33 of the piston 3 is less than that of the internal spring of the dispensing member P.
- the actuating rod P2 is hollow so as to define a discharge pipe in communication with a dosing chamber of the distributor
- the central passage 31 of the piston 3 is located directly downstream of the output of the actuating rod P2, so that fluid produced by the dispensing member P passes through the suction chamber 30 to reach the well of the pump. entry 1 1.
- the suction chamber 30 When the distributor head T is at rest (FIG. 2a), the suction chamber 30 has a maximum volume. When a user presses on the bearing surface of the head T, the suction chamber 30 will decrease in volume until it reaches a minimum (FIG. 2b). Then, the actuating rod P2 will be depressed so as to dispense fluid through the head T and its nozzle 2 where it will be sprayed. As soon as the user releases his pressure on the bearing surface of the head T, the actuating rod P2 returns to its rest position under the action of the internal spring. The piston 3 will also move to regain also its rest position ( Figure 2a). In doing so, a vacuum is created in the suction chamber, due to its increase in volume.
- This depression will generate a suction force at the nozzle 2 which will move the fluid it contains to the suction chamber 30. It is thus possible to empty the spray holes DO, the filter or filters F1, F2, F2 'and the intermediate space or spaces E1, E2, E1'.
- the volume variation of the suction chamber 30 may be adapted to the design of the nozzle to remove a sufficient volume of fluid product. In the nozzle 1, one can for example evacuate the DO spray holes, the first space intermediate E1 and the filter holes FO, but not the second intermediate space E2, or the filter F2. Thus, it would evacuate only the volume shown in Figure 3c.
- a flexible dome 3 ' is mounted on the head body 1' in place of the plate 16 of the first embodiment.
- This flexible dome 3 ' comprises an anchor ring 32' which is mounted on an attachment flange 14 'of the head body 1'.
- the covering cap 4 ' forms a reentrant flap 41' which bears the anchor ring 32 'on the head body 1'.
- the anchor ring 32 ' is fixedly mounted and sealed on the head body 1'.
- the flexible dome 3 ' also includes an elastically deformable actuating wall 34' which forms a bearing surface for a user's finger.
- the suction chamber 30 ' is then formed between the head body 1' and this elastically deformable actuating wall 34 '. It is supplied with fluid by the inlet well 11 'and the outlet of the chamber is formed by the supply pipe 13' which is connected to the nozzle 2.
- the volume of the actuating rod P2 is reduced, and the operating rod P2 of the dispenser member P is depressed. Fluid is then pushed through the actuating rod P2: it passes through the inlet well, the suction chamber 30 ', the feed duct 13' and the nozzle 2, from which it comes sprayed into fine droplets .
- the actuating rod P2 returns to its rest position and the actuating wall 34' also returns to its rest position.
- the depression thus created in the suction chamber 30 ' is used, as in the first embodiment, to empty or evacuate the nozzle 2 of its fluid product.
- nozzle 2 'of Figures 4a and 4b can be mounted in place of the nozzle 2 in the second embodiment of the suction chamber 30'.
- the present invention thus relies on the combination of a suction chamber with a multiple micro-hole nozzle (20 to 500 holes of 1 to 100 microns), advantageously equipped with one or more filters.
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1753689A FR3065653B1 (fr) | 2017-04-27 | 2017-04-27 | Tete de distribution de produit fluide. |
| FR1754003A FR3065890B1 (fr) | 2017-05-05 | 2017-05-05 | Module de distribution de produit fluide. |
| PCT/FR2018/051019 WO2018197798A1 (fr) | 2017-04-27 | 2018-04-24 | Tete de distribution de produit fluide. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3615224A1 true EP3615224A1 (fr) | 2020-03-04 |
| EP3615224B1 EP3615224B1 (fr) | 2021-06-09 |
Family
ID=62223052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18726519.4A Active EP3615224B1 (fr) | 2017-04-27 | 2018-04-24 | Tete de distribution de produit fluide. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11278925B2 (fr) |
| EP (1) | EP3615224B1 (fr) |
| CN (1) | CN110603105B (fr) |
| BR (1) | BR112019021994B1 (fr) |
| ES (1) | ES2879863T3 (fr) |
| WO (1) | WO2018197798A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024209414A1 (fr) * | 2023-04-06 | 2024-10-10 | Neutec Inhaler Ilac Sanayi Ve Ticaret Anonim Sirketi | Atomiseur |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5348189A (en) | 1991-04-10 | 1994-09-20 | Bespak Plc | Air purge pump dispenser |
| US5664703A (en) * | 1994-02-28 | 1997-09-09 | The Procter & Gamble Company | Pump device with collapsible pump chamber having supply container venting system and integral shipping seal |
| US5492275A (en) | 1994-05-16 | 1996-02-20 | Par-Way Group | Hand pump sprayer with rotating nozzle and system for dispensing viscous liquids |
| JPH09110064A (ja) * | 1995-10-13 | 1997-04-28 | Mandamu:Kk | 目づまり及び液ダレ防止機能を有するポンプボタン並びに該ポンプボタンを有する化粧料 |
| FR2779129B1 (fr) * | 1998-05-26 | 2000-08-18 | Sofab | Diffuseur de produits liquides sous forme d'aerosols |
| US6536685B2 (en) * | 2001-03-16 | 2003-03-25 | Unilever Home And Personal Care Usa, Division Of Conopco, Inc. | Foamer |
| FR2903328B1 (fr) | 2006-07-10 | 2008-12-05 | Rexam Dispensing Systems Sas | Buse de pulverisation, dispositif de pulverisation et utilisation de ce dispositif. |
| FR2915470B1 (fr) | 2007-04-24 | 2011-06-10 | Rexam Dispensing Sys | Bouton poussoir et distributeur comprenant un tel bouton poussoir. |
| US7726517B2 (en) | 2007-06-27 | 2010-06-01 | The Clorox Company | Liquid draw-back system for a dispensing package |
| GB0800709D0 (en) * | 2008-01-16 | 2008-02-20 | Dunne Stephen T | Double jet impinging nozzle |
| ITRM20080184A1 (it) * | 2008-04-08 | 2009-10-09 | Emsar Spa | Testa di erogazione per dispensatori di prodotti liquidi |
| US8104650B2 (en) * | 2008-06-06 | 2012-01-31 | Pibed Ltd. | Anti drip device for liquid dispensers |
| GB2463716A (en) * | 2008-09-24 | 2010-03-31 | Robinson Plc | A dispensing cap having an expansion chamber to contain residual product |
| WO2013125555A1 (fr) | 2012-02-21 | 2013-08-29 | ノズルネットワーク株式会社 | Dispositif d'atomisation de liquide |
| EP3157681A1 (fr) | 2014-06-20 | 2017-04-26 | Medspray B.V. | Aérosol ou dispositif de pulvérisation, unité de buse de pulvérisation et procédé de fabrication associé |
-
2018
- 2018-04-24 ES ES18726519T patent/ES2879863T3/es active Active
- 2018-04-24 WO PCT/FR2018/051019 patent/WO2018197798A1/fr not_active Ceased
- 2018-04-24 US US16/607,897 patent/US11278925B2/en active Active
- 2018-04-24 BR BR112019021994-3A patent/BR112019021994B1/pt active IP Right Grant
- 2018-04-24 EP EP18726519.4A patent/EP3615224B1/fr active Active
- 2018-04-24 CN CN201880027372.XA patent/CN110603105B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US11278925B2 (en) | 2022-03-22 |
| US20200114382A1 (en) | 2020-04-16 |
| BR112019021994B1 (pt) | 2023-01-31 |
| BR112019021994A2 (pt) | 2020-05-05 |
| WO2018197798A1 (fr) | 2018-11-01 |
| CN110603105A (zh) | 2019-12-20 |
| ES2879863T3 (es) | 2021-11-23 |
| CN110603105B (zh) | 2022-01-04 |
| EP3615224B1 (fr) | 2021-06-09 |
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