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EP1915921B1 - Fluid distributing system with reliable fitting of the plunger tube - Google Patents

Fluid distributing system with reliable fitting of the plunger tube Download PDF

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Publication number
EP1915921B1
EP1915921B1 EP07290872.6A EP07290872A EP1915921B1 EP 1915921 B1 EP1915921 B1 EP 1915921B1 EP 07290872 A EP07290872 A EP 07290872A EP 1915921 B1 EP1915921 B1 EP 1915921B1
Authority
EP
European Patent Office
Prior art keywords
tube
plunger tube
fluid
diameter
dispensing system
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.)
Active
Application number
EP07290872.6A
Other languages
German (de)
French (fr)
Other versions
EP1915921A1 (en
Inventor
Jacques Beun
Michel Plouffe
Pierre Dumont
Hervé Lompech
Bernard Clerget
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
Albea Le Treport 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
Priority claimed from FR0609284A external-priority patent/FR2907320B1/en
Application filed by Albea Le Treport SAS filed Critical Albea Le Treport SAS
Publication of EP1915921A1 publication Critical patent/EP1915921A1/en
Application granted granted Critical
Publication of EP1915921B1 publication Critical patent/EP1915921B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/02—Scent flasks, e.g. with evaporator
    • 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
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on 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
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/30—Dip tubes
    • 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
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1049—Attachment arrangements comprising a deformable or resilient ferrule clamped or locked onto the neck of the container by displacing, e.g. sliding, a sleeve surrounding the ferrule

Definitions

  • the invention relates to a system for dispensing a fluid contained in a bottle, and a bottle containing a fluid to be dispensed and on which such a dispensing system is mounted.
  • the dispensing system is intended to equip bottles used in perfumery, in cosmetics or for pharmaceutical treatments.
  • this type of bottle contains a liquid that must be returned by a dispensing system comprising a pump or a manually operated valve.
  • these pumps or these valves themselves are provided with a dip tube intended to be immersed in the liquid to allow supply of said system of liquid to be dispensed.
  • the pump or the valve conventionally comprises a body provided with a lower bore in which the upper portion of the plunger tube is fitted.
  • the dip tube and the bore have a cylindrical geometry of revolution and the tight association is achieved by radial clamping between these two geometries.
  • the invention aims to solve the problems mentioned above by proposing in particular a distribution system in which the plunger tube is mounted in a particularly reliable manner, and while respecting the economic constraints relative to the rate of assembly and the manufacture of the various elements. the component.
  • the invention proposes a system for dispensing a fluid contained in a bottle comprising the features of claim 1.
  • the invention proposes a bottle containing a fluid to be dispensed, said bottle comprising a body which is surmounted by a ring provided with an opening on which is associated such a dispensing system, the lower end of the dip tube being immersed in the fluid to allow supply of said fluid system to be dispensed.
  • the invention relates to a bottle containing a fluid to be dispensed, in particular a liquid such as a perfume, a cosmetic product or a drug solution for a pharmaceutical treatment.
  • the bottle (not shown) conventionally comprises a reservoir, for example made of polymeric material or glass, which is surmounted by a ring provided with an opening on which is associated a dispensing system.
  • the bottle contains an alcoholic solution of perfume, in particular such a solution which is colorless or weakly colored.
  • the bottle comprises a reservoir which is transparent or at least translucent, for example made of glass or colorless or weakly colored plastic material.
  • the reservoir is intended to contain the solution by allowing its visualization by the user.
  • the dispensing system may comprise a pump or a manually operated valve, in particular by means of a push button.
  • the system allows the distribution of the fluid, in particular by spraying.
  • Many types of pumps or valves are known, which can be used in the context of the invention, this being not limited to a particular embodiment of these means.
  • an embodiment of a system for distributing the fluid contained in the bottle comprising a body 1, in particular made of a polymeric material such as polypropylene, polyethylene, polyacetal (POM), polybutylene terephthalate (PBT) or a mixture of these materials.
  • a polymeric material such as polypropylene, polyethylene, polyacetal (POM), polybutylene terephthalate (PBT) or a mixture of these materials.
  • the body 1 is arranged for mounting the dispensing system on the bottle, in particular to be arranged in a sealed manner in the opening of said bottle.
  • the dispensing system comprises a dip tube 2 whose lower end is immersed in the liquid to allow supply of said fluid system to be dispensed.
  • the body 1 shown has a geometry of revolution and comprises, in the upper part 3, housing for the functional organs of the pump or the valve.
  • an association portion 4 of the plunger tube 2 is formed in the lower part of said body.
  • the association part 4 is surmounted by a portion 5 which forms a seat for a valve, in particular formed of a ball, so as to be able to feed the upper part of the body 1 with the fluid coming from the plunger tube 2.
  • the association part 4 comprises a bore 6 in which the upper part of the plunger tube 2 is fitted ( figure 3 ) so as to mount said dip tube in said association portion.
  • the bore 6 has a profile of cylindrical section of revolution and the dip tube 2 has a cylindrical geometry of revolution.
  • the The plunger tube 2 can be produced conventionally by extrusion of a polymeric material, especially based on polypropylene, polyethylene, polymethylpentene (TPX) or a mixture of these materials.
  • the dip tube 2 is made of fluoropolymer-based material, for example based on polytetrafluoroethylene (PTFE), and in particular based on PTFE block copolymer.
  • PTFE polytetrafluoroethylene
  • the material in which the dip tube 2 is made is a PTFE block copolymer - perfluoromethylvinyl ether (MFA) or a PTFE block copolymer - Ethylene - Hexafluoropropylene - Fluoroterpolymer (EFEP).
  • MFA perfluoromethylvinyl ether
  • EFEP Ethylene - Hexafluoropropylene - Fluoroterpolymer
  • the material is an amorphous PTFE PT Teflon type.
  • plunger tubes 2 have the advantage of invisibility when immersed in an alcoholic solution of perfume. However, they pose problems of fitting, including reliability and high speed production thereof, in particular because of the non-stick properties of this material and its low creep resistance. Thus, the fitting of a cylindrical fluoropolymer dip tube in a cylindrical bore is not entirely satisfactory, even in case of slight increase in the thickness of the tube.
  • the bore 6 has an internal annular projection 7 whose diameter is restricted relative to the diameter of the portion of the tube 2 which is fitted.
  • the projection 7 is formed at the junction between a converging lower portion 8 and a diverging upper portion 9, so as to facilitate the insertion of the dip tube 2 into the bore 6 and to limit the necessary force of fitting.
  • the convergent bottom portion 8 has an inlet diameter which is greater than the part of the tube 2 which is fitted so as to form a chamfer facilitating the passage of the tube 2 in the bore 6.
  • the diverging upper portion 9 has an outlet diameter D1 which is at least equal, in particular substantially equal to that before fitting of the portion of the tube 2 which is fitted.
  • the upper end of the fitted portion is substantially not constrained at this outlet diameter D1, so that the material retains all its elasticity to withstand the stresses of pulling the plunger tube 2 out of the bore 6.
  • the diverging upper portion 9 is limited by an axial end stop 10 of the fitting of the plunger tube 2, said abutment being open at its center to form channel 11 for the passage of fluid from the plunger tube 2 to the inside the body 1.
  • the geometry of the bore 6 also allows the application of a force of fitting of the dip tube 2 which is weak and therefore compatible with the ductile materials.
  • the risk of deformation of the end of the dip tube 2, in particular on the projection 7, are limited.
  • association portion 4 is easily made by molding.
  • the bore 6 is of gentle and progressive shape, which allows a release without difficulty of the counter conicity.
  • the diameter D 2 of the projection is 1.35 mm
  • the diameter D 1 output is equal to 1.53 mm
  • the angle ⁇ is 20 °.
  • the tearing force of the dip tube 2 after aging and stabilization is at least equal to 2 daN.

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

Description

L'invention concerne un système de distribution d'un fluide contenu dans un flacon, ainsi qu'un flacon contenant un fluide à distribuer et sur lequel un tel système de distribution est monté.The invention relates to a system for dispensing a fluid contained in a bottle, and a bottle containing a fluid to be dispensed and on which such a dispensing system is mounted.

Dans une application particulière, le système de distribution est destiné à équiper des flacons utilisés en parfumerie, en cosmétique ou pour des traitements pharmaceutiques. En effet, ce type de flacon contient un liquide qui doit être restitué par un système de distribution comprenant une pompe ou une valve à actionnement manuel. En outre, ces pompes ou ces valves sont elles-mêmes pourvues d'un tube plongeur destiné à être immergé dans le liquide pour permettre l'approvisionnement dudit système en liquide à distribuer.In a particular application, the dispensing system is intended to equip bottles used in perfumery, in cosmetics or for pharmaceutical treatments. Indeed, this type of bottle contains a liquid that must be returned by a dispensing system comprising a pump or a manually operated valve. In addition, these pumps or these valves themselves are provided with a dip tube intended to be immersed in the liquid to allow supply of said system of liquid to be dispensed.

Pour ce faire, la pompe ou la valve comprend classiquement un corps pourvu d'un alésage inférieur dans lequel la partie supérieure du tube plongeur est emmanchée. En particulier, le tube plongeur ainsi que l'alésage présentent une géométrie cylindrique de révolution et l'association étanche est réalisée par serrage radial entre ces deux géométries.To do this, the pump or the valve conventionally comprises a body provided with a lower bore in which the upper portion of the plunger tube is fitted. In particular, the dip tube and the bore have a cylindrical geometry of revolution and the tight association is achieved by radial clamping between these two geometries.

Un des problèmes qui se pose avec un tel emmanchement est celui de sa fiabilité, alors même que celui-ci conditionne la bonne réalisation de la distribution du fluide. En outre, la chute du tube plongeur pendant les opérations de remplissage du flacon, ou bien à l'intérieur du liquide conditionné, n'est pas acceptable, notamment pour la distribution d'un médicament.One of the problems that arises with such a fit is that of its reliability, even though it determines the proper performance of the distribution of the fluid. In addition, the fall of the dip tube during filling operations of the bottle, or inside the conditioned liquid, is not acceptable, especially for the distribution of a drug.

Or, notamment à cause du faible diamètre des tubes plongeurs et des cadences de montage qui sont importantes, il n'est pas possible d'exercer une force d'emmanchement nécessaire pour obtenir un effort de serrage important. En outre, du fait de sa déformabilité, la fiabilité de l'emmanchement d'un tube plongeur en matériau polymérique est également problématique, et ce d'autant plus dans le cas où le matériau est souple et/ou ductile.However, particularly because of the small diameter of the plunger tubes and the mounting rates which are important, it is not possible to exert a fitting force necessary to obtain a large clamping force. In addition, because of its deformability, the reliability of the fitting of a dip tube of polymeric material is also problematic, especially in the case where the material is flexible and / or ductile.

Pour résoudre ce problème, les documents EP-0 701 951 et JP-6227577 proposent un alésage pourvu d'un jonc périphérique pour augmenter localement l'effort de serrage.To solve this problem, documents EP-0 701 951 and JP-6227577 propose a bore provided with a peripheral ring to locally increase the clamping force.

Toutefois, cette solution ne donne pas satisfaction relativement à sa réalisation par moulage. En effet, lors du démoulage en force, le jonc est susceptible d'être arraché ou pour le moins déformé, ce qui altère sa capacité à améliorer la fiabilité de l'emmanchement. Le document EP-A2-1 033 174 divulgue un système de distribution selon le préambule de la revendication 1. En outre, pour augmenter l'effort de serrage, le jonc doit être d'autant plus saillant à l'intérieur de l'alésage. Il en résulte la formation d'un obstacle sur lequel, lors de l'emmanchement, l'extrémité du tube est susceptible de buter ou de se déformer, ce qui va à l'encontre de l'amélioration recherchée.However, this solution is unsatisfactory relative to its production by molding. Indeed, during demolding force, the ring is likely to be torn or at least deformed, which affects its ability to improve the reliability of the fitting. The document EP-A2-1 033 174 discloses a dispensing system according to the preamble of claim 1. In addition, to increase the clamping force, the ring must be all the more salient inside the bore. This results in the formation of an obstacle on which, during fitting, the end of the tube may abut or deform, which goes against the desired improvement.

Par conséquent, avec cette réalisation, il existe un risque important d'avoir un tube plongeur mal emmanché, mal fixé, risquant de sortir de l'alésage, et ce d'autant plus que la vitesse d'emmanchement est élevée sur les lignes de montage automatique.Therefore, with this embodiment, there is a significant risk of having a dip tube poorly fitted, poorly fixed, likely to come out of the bore, and especially as the fitting speed is high on the lines of automatic assembly.

L'invention vise à résoudre les problèmes mentionnés ci-dessus en proposant notamment un système de distribution dans lequel le tube plongeur est monté de façon particulièrement fiable, et ce en respectant les contraintes économiques relativement aux cadences de montage et à la fabrication des différents éléments le composant.The invention aims to solve the problems mentioned above by proposing in particular a distribution system in which the plunger tube is mounted in a particularly reliable manner, and while respecting the economic constraints relative to the rate of assembly and the manufacture of the various elements. the component.

A cet effet, et selon un premier aspect, l'invention propose un système de distribution d'un fluide contenu dans un flacon comportant les caractéristiques de la revendication 1. Selon un deuxième aspect, l'invention propose un flacon contenant un fluide à distribuer, ledit flacon comprenant un corps qui est surmonté par une bague pourvue d'une ouverture sur laquelle est associé un tel système de distribution, l'extrémité inférieure du tube plongeur étant immergée dans le fluide pour permettre l'approvisionnement dudit système en fluide à distribuer.For this purpose, and according to a first aspect, the invention proposes a system for dispensing a fluid contained in a bottle comprising the features of claim 1. According to a second aspect, the invention proposes a bottle containing a fluid to be dispensed, said bottle comprising a body which is surmounted by a ring provided with an opening on which is associated such a dispensing system, the lower end of the dip tube being immersed in the fluid to allow supply of said fluid system to be dispensed.

D'autres objets et avantages de l'invention apparaîtront dans la description qui suit, faite en référence aux figures annexées, dans lesquelles :

  • la figure 1 est une vue en coupe longitudinale du corps d'un système de distribution selon un mode de réalisation de l'invention ;
  • la figure 2 est une vue partielle de la figure 1, montrant la partie d'association du tube plongeur ;
  • la figure 3 est une vue analogue à la figure 2, le tube plongeur étant emmanché dans la partie d'association.
Other objects and advantages of the invention will appear in the description which follows, made with reference to the appended figures, in which:
  • the figure 1 is a longitudinal sectional view of the body of a dispensing system according to one embodiment of the invention;
  • the figure 2 is a partial view of the figure 1 showing the association portion of the dip tube;
  • the figure 3 is a view similar to the figure 2 , the plunger tube being fitted into the association portion.

Dans la description, les termes de positionnement dans l'espace sont pris en référence à la position du corps telle que représentée sur la figure 1.In the description, the terms of positioning in space are taken with reference to the position of the body as shown in FIG. figure 1 .

L'invention concerne un flacon contenant un fluide à distribuer, notamment un liquide tel qu'un parfum, un produit cosmétique ou une solution médicamenteuse pour un traitement pharmaceutique. Le flacon (non représenté) comprend classiquement un réservoir, par exemple réalisé en matériau polymérique ou en verre, qui est surmonté par une bague pourvue d'une ouverture sur laquelle est associé un système de distribution.The invention relates to a bottle containing a fluid to be dispensed, in particular a liquid such as a perfume, a cosmetic product or a drug solution for a pharmaceutical treatment. The bottle (not shown) conventionally comprises a reservoir, for example made of polymeric material or glass, which is surmounted by a ring provided with an opening on which is associated a dispensing system.

Selon une réalisation, le flacon contient une solution alcoolique de parfum, notamment une telle solution qui est incolore ou faiblement colorée. Le flacon comprend un réservoir qui est transparent ou au moins translucide, par exemple réalisé en verre ou en matière plastique incolore ou faiblement colorée. Le réservoir est prévu pour contenir la solution en permettant sa visualisation par l'utilisateur.In one embodiment, the bottle contains an alcoholic solution of perfume, in particular such a solution which is colorless or weakly colored. The bottle comprises a reservoir which is transparent or at least translucent, for example made of glass or colorless or weakly colored plastic material. The reservoir is intended to contain the solution by allowing its visualization by the user.

En particulier, le système de distribution peut comprendre une pompe ou une valve à actionnement manuel, notamment au moyen d'un bouton poussoir. Ainsi, le système permet la distribution du fluide, notamment par pulvérisation. On connaît un grand nombre de types de pompes ou de valves, qui peuvent être utilisés dans le cadre de l'invention, celle-ci n'étant pas limitée à une réalisation particulière de ces moyens.In particular, the dispensing system may comprise a pump or a manually operated valve, in particular by means of a push button. Thus, the system allows the distribution of the fluid, in particular by spraying. Many types of pumps or valves are known, which can be used in the context of the invention, this being not limited to a particular embodiment of these means.

En relation avec les figures, on décrit un mode de réalisation d'un système de distribution du fluide contenu dans le flacon, ledit système comprenant un corps 1, notamment réalisé à base d'un matériau polymérique tel que le polypropylène, le polyéthylène, le polyacétal (POM), le polybutylène téréphtalate (PBT) ou un mélange de ces matériaux.In relation to the figures, an embodiment of a system for distributing the fluid contained in the bottle, said system comprising a body 1, in particular made of a polymeric material such as polypropylene, polyethylene, polyacetal (POM), polybutylene terephthalate (PBT) or a mixture of these materials.

Le corps 1 est agencé pour le montage du système de distribution sur le flacon, notamment pour être disposé de façon étanche dans l'ouverture dudit flacon. En outre, le système de distribution comprend un tube plongeur 2 dont l'extrémité inférieure est immergée dans le liquide pour permettre l'approvisionnement dudit système en fluide à distribuer.The body 1 is arranged for mounting the dispensing system on the bottle, in particular to be arranged in a sealed manner in the opening of said bottle. In addition, the dispensing system comprises a dip tube 2 whose lower end is immersed in the liquid to allow supply of said fluid system to be dispensed.

Le corps 1 représenté présente une géométrie de révolution et comprend, en partie supérieure 3, des logements pour les organes fonctionnels de la pompe ou de la valve. En outre, une partie d'association 4 du tube plongeur 2 est formée en partie inférieure dudit corps. Sur la figure, la partie d'association 4 est surmontée par une partie 5 qui forme siège pour un clapet, notamment formé d'une bille, de sorte à pouvoir alimenter la partie supérieure du corps 1 avec le fluide provenant du tube plongeur 2.The body 1 shown has a geometry of revolution and comprises, in the upper part 3, housing for the functional organs of the pump or the valve. In addition, an association portion 4 of the plunger tube 2 is formed in the lower part of said body. In the figure, the association part 4 is surmounted by a portion 5 which forms a seat for a valve, in particular formed of a ball, so as to be able to feed the upper part of the body 1 with the fluid coming from the plunger tube 2.

La partie d'association 4 comprend un alésage 6 dans lequel la partie supérieure du tube plongeur 2 est emmanchée (figure 3) de sorte à monter ledit tube plongeur dans ladite partie d'association. Selon l'invention, l'alésage 6 présente un profil de section cylindrique de révolution et le tube plongeur 2 présente une géométrie cylindrique de révolution. Ainsi, le tube plongeur 2 peut être réalisé de façon classique par extrusion d'un matériau polymérique, notamment à base de polypropylène, de polyéthylène, de polyméthylepentène (TPX) ou d'un mélange de ces matériaux.The association part 4 comprises a bore 6 in which the upper part of the plunger tube 2 is fitted ( figure 3 ) so as to mount said dip tube in said association portion. According to the invention, the bore 6 has a profile of cylindrical section of revolution and the dip tube 2 has a cylindrical geometry of revolution. So, the The plunger tube 2 can be produced conventionally by extrusion of a polymeric material, especially based on polypropylene, polyethylene, polymethylpentene (TPX) or a mixture of these materials.

Selon une réalisation, le tube plongeur 2 est réalisé en matériau à base de polymère fluoré, par exemple à base de polytétrafluoroéthylène (PTFE), et notamment à base de copolymère bloc de PTFE. Dans des exemples particuliers, le matériau dans lequel le tube plongeur 2 est réalisé est un copolymère bloc PTFE - Perfluorométhylvinyléther (MFA) ou un copolymère bloc PTFE - Ethylène - Hexafluoropropylène - Fluoroterpolymère (EFEP). Dans un autre exemple de réalisation, le matériau est un PTFE amorphe de type Téflon AF.According to one embodiment, the dip tube 2 is made of fluoropolymer-based material, for example based on polytetrafluoroethylene (PTFE), and in particular based on PTFE block copolymer. In particular examples, the material in which the dip tube 2 is made is a PTFE block copolymer - perfluoromethylvinyl ether (MFA) or a PTFE block copolymer - Ethylene - Hexafluoropropylene - Fluoroterpolymer (EFEP). In another exemplary embodiment, the material is an amorphous PTFE PT Teflon type.

Ces tubes plongeurs 2 présentent l'avantage de l'invisibilité lors de leur immersion dans une solution alcoolique de parfum. Toutefois, ils posent des problèmes d'emmanchement, notamment de fiabilité et de réalisation à grande cadence de celui-ci, en particulier du fait des propriétés anti-adhérentes de ce matériau et de sa faible résistance au fluage. Ainsi, l'emmanchement d'un tube plongeur cylindrique en polymère fluoré dans un alésage cylindrique ne donne pas entièrement satisfaction, même en cas de légère augmentation de l'épaisseur du tube.These plunger tubes 2 have the advantage of invisibility when immersed in an alcoholic solution of perfume. However, they pose problems of fitting, including reliability and high speed production thereof, in particular because of the non-stick properties of this material and its low creep resistance. Thus, the fitting of a cylindrical fluoropolymer dip tube in a cylindrical bore is not entirely satisfactory, even in case of slight increase in the thickness of the tube.

Pour augmenter l'effort de serrage, l'alésage 6 présente une saillie annulaire interne 7 dont le diamètre est restreint par rapport au diamètre de la partie du tube 2 qui est emmanchée. En outre, la saillie 7 est formée à la jonction entre une partie inférieure convergente 8 et une partie supérieure divergente 9, de sorte à faciliter l'introduction du tube plongeur 2 dans l'alésage 6 et à limiter la force d'emmanchement nécessaire.To increase the clamping force, the bore 6 has an internal annular projection 7 whose diameter is restricted relative to the diameter of the portion of the tube 2 which is fitted. In addition, the projection 7 is formed at the junction between a converging lower portion 8 and a diverging upper portion 9, so as to facilitate the insertion of the dip tube 2 into the bore 6 and to limit the necessary force of fitting.

Sur les figures, la partie inférieure convergente 8 présente un diamètre d'entrée qui est supérieur à la partie du tube 2 qui est emmanchée, de sorte à former un chanfrein facilitant le passage du tube 2 dans l'alésage 6. Selon l'invention, la partie supérieure divergente 9 présente un diamètre de sortie D1 qui est au moins égal, en particulier sensiblement égal, à celui avant emmanchement de la partie du tube 2 qui est emmanchée. Ainsi, l'extrémité supérieure de la partie emmanchée n'est sensiblement pas contrainte au niveau de ce diamètre de sortie D1, de sorte que la matière conserve toute son élasticité pour résister aux contraintes d'arrachement du tube plongeur 2 hors de l'alésage 6.In the figures, the convergent bottom portion 8 has an inlet diameter which is greater than the part of the tube 2 which is fitted so as to form a chamfer facilitating the passage of the tube 2 in the bore 6. According to the invention, the diverging upper portion 9 has an outlet diameter D1 which is at least equal, in particular substantially equal to that before fitting of the portion of the tube 2 which is fitted. Thus, the upper end of the fitted portion is substantially not constrained at this outlet diameter D1, so that the material retains all its elasticity to withstand the stresses of pulling the plunger tube 2 out of the bore 6.

Par ailleurs, la partie supérieure divergente 9 est limitée par une butée axiale 10 de fin de course de l'emmanchement du tube plongeur 2, ladite butée étant ouverte en son centre pour former canal 11 de passage du fluide depuis le tube plongeur 2 vers l'intérieur du corps 1.Moreover, the diverging upper portion 9 is limited by an axial end stop 10 of the fitting of the plunger tube 2, said abutment being open at its center to form channel 11 for the passage of fluid from the plunger tube 2 to the inside the body 1.

Dans des exemples particuliers de réalisation, le système de distribution peut présenter seul ou en combinaison les caractéristiques suivantes :

  • un diamètre D2 de la saillie compris entre 85% et 95% du diamètre du tube plongeur 2 avant emmanchement ;
  • une partie inférieure convergente 8 conique avec un angle d'ouverture α inférieur ou égal à 20°, notamment de l'ordre de 20° ;
  • une saillie 7 présentant un rayon de raccordement r entre les parties convergente 8 et divergente 9 qui est au minimum égal à 1 mm ;
  • une longueur de la zone supérieure divergente 9 qui est de l'ordre de deux fois le diamètre du tube plongeur 2.
In particular embodiments, the distribution system may present alone or in combination the following characteristics:
  • a diameter D2 of the projection comprised between 85% and 95% of the diameter of the plunger tube 2 before fitting;
  • a convergent lower portion 8 conical with an opening angle α less than or equal to 20 °, in particular of the order of 20 °;
  • a projection 7 having a connecting radius r between the convergent 8 and divergent portions 9 which is at least equal to 1 mm;
  • a length of the divergent upper zone 9 which is of the order of twice the diameter of the plunger tube 2.

Ces différentes caractéristiques permettent de faciliter l'introduction du tube plongeur 2 dans l'alésage 6 et de fiabiliser l'emmanchement du tube plongeur 2 dans la partie d'association 4. La géométrie de l'alésage 6 permet également l'application d'une force d'emmanchement du tube plongeur 2 qui est faible et donc compatible avec les matières ductiles. En outre, lors de l'emmanchement, les risques de déformation de l'extrémité du tube plongeur 2, notamment sur la saillie 7, sont limités.These various characteristics make it possible to facilitate the insertion of the dip tube 2 into the bore 6 and to make the fitting of the dip tube 2 more reliable in the association portion 4. The geometry of the bore 6 also allows the application of a force of fitting of the dip tube 2 which is weak and therefore compatible with the ductile materials. In addition, during fitting, the risk of deformation of the end of the dip tube 2, in particular on the projection 7, are limited.

Par ailleurs, la partie d'association 4 est facilement réalisable par moulage. En effet, l'alésage 6 est de forme douce et progressive, ce qui permet un démoulage sans difficulté de la contre conicité.Moreover, the association portion 4 is easily made by molding. Indeed, the bore 6 is of gentle and progressive shape, which allows a release without difficulty of the counter conicity.

A titre d'exemple, pour un corps 1 en polypropylène et un tube plongeur 2 en polymère fluoré (EFEP) de diamètre avant emmanchement égal à 1,51 mm, le diamètre D2 de la saillie est de 1,35 mm, le diamètre D1 de sortie est égal à 1,53 mm et l'angle α est de 20°. La force d'arrachement de ce tube plongeur 2 après vieillissement et stabilisation est au moins égale à 2 daN.By way of example, for a body 1 made of polypropylene and a dip tube 2 made of fluoropolymer (EFEP) with a diameter of 1.51 mm before fitting, the diameter D 2 of the projection is 1.35 mm, the diameter D 1 output is equal to 1.53 mm and the angle α is 20 °. The tearing force of the dip tube 2 after aging and stabilization is at least equal to 2 daN.

Claims (9)

  1. System for dispensing a fluid contained in a bottle, said system comprising a body (1) intended to be associated with said bottle and a plunger tube (2) mounted in an association portion (4) formed on said body, said tube being intended to be immersed in the fluid in order to allow for the supplying of said system with fluid to be dispensed, the association portion (4) comprising a bore (6) wherein a portion of the plunger tube (2) is fitted, said bore having an annular protrusion (7) with a small diameter compared with the diameter of the portion of the tube (2) which is fitted and a profile with a cylindrical section of revolution, the plunger tube having a cylindrical geometry of revolution, the protrusion (7) being formed at the junction between a lower converging portion (8) and an upper diverging portion (9), said system being characterised in that the diverging portion (9) has an outlet diameter (D1) that is at least equal to that before fitting of the portion of the tube (2) which is fitted.
  2. Dispensing system according to claim 1, characterised in that the converging portion (8) has an inlet diameter which is greater than that before fitting of the portion of the tube (2) which is fitted.
  3. Dispensing system according to either of claims 1 to 2, characterised in that the diameter (D2) of the protrusion (7) is between 85 % and 95 % of the diameter of the plunger tube (2) before fitting.
  4. Dispensing system according to any of claims 1 to 3, characterised in that the upper diverging portion (9) is limited by an axial stop (10) for the end of the travel of the fitting of the plunger tube (2).
  5. Dispensing system according to any of claims 1 to 4, characterised in that the lower converging portion (8) is tapered with an opening angle (α) less than or equal to 20°.
  6. Dispensing system according to any of claims 1 to 5, characterised in that the protrusion (7) has a connection radius (r) between the converging (8) and diverging (9) portions that is at least equal to 1 mm.
  7. Dispensing system according to any of claims 1 to 6, characterised in that the length of the upper diverging zone (9) is approximately twice the diameter of the plunger tube (2).
  8. Dispensing system according to any of claims 1 to 7, characterised in that the plunger tube (2) is made from a material based on fluorinated polymer.
  9. Bottle containing a fluid to be dispensed, said bottle comprising a body that is over-moulded by a ring provided with an opening on which is associated a dispensing system according to any of claims 1 to 8, the lower end of the plunger tube (2) being immersed in the fluid in order to allow the supplying of said system with fluid to be dispensed.
EP07290872.6A 2006-10-23 2007-07-11 Fluid distributing system with reliable fitting of the plunger tube Active EP1915921B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0609284A FR2907320B1 (en) 2006-10-23 2006-10-23 PERFUME BOTTLE

Publications (2)

Publication Number Publication Date
EP1915921A1 EP1915921A1 (en) 2008-04-30
EP1915921B1 true EP1915921B1 (en) 2018-09-05

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Application Number Title Priority Date Filing Date
EP07290872.6A Active EP1915921B1 (en) 2006-10-23 2007-07-11 Fluid distributing system with reliable fitting of the plunger tube

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US (1) US20080099513A1 (en)
EP (1) EP1915921B1 (en)

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US20110154814A1 (en) * 2009-12-31 2011-06-30 Campbell Graham J Pneumatic actuator and electrical switch system
US20150314316A1 (en) * 2012-11-02 2015-11-05 Advance Technology Materials, Inc Dip tube assemblies and methods of manufacturing the same
FR3008629B1 (en) * 2013-07-18 2018-03-09 Promens Sa DEVICE FOR TAKING AND DISPENSING A VISCOUS PRODUCT WITHOUT REPEATING AIR
FR3066890B1 (en) * 2017-06-06 2021-07-09 Albea Services USE OF A MATERIAL IN COSMETIC PACKAGINGS AND A PRESSURE PRODUCT DISTRIBUTION SYSTEM INCLUDING AT LEAST ONE PART CONSISTING OF OR INCLUDING THIS MATERIAL

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US4615467A (en) * 1985-07-24 1986-10-07 Calmar, Inc. Liquid foam dispenser
US4640443A (en) * 1983-06-08 1987-02-03 Corsette Douglas Frank Manually operated dispensing pump
EP1033174A2 (en) * 1999-03-03 2000-09-06 Microspray Delta S.p.A. Manually operated pump for dispensing liquids under pressure
US20040047826A1 (en) * 2002-09-06 2004-03-11 Cosmetic Laboratories Of America, A Division Of St. Ives Laboratories, Inc. Fragrance formulation containing pearlescent silicone oil beads

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US3223293A (en) * 1963-09-03 1965-12-14 Seaquist Valve Co Aerosol valve with secure attaching means for dip tube
US4530450A (en) * 1983-02-07 1985-07-23 American Cyanamid Co. Aerosol dispensing system
GB2212222A (en) * 1987-11-10 1989-07-19 Bespak Plc Dispensing apparatus
JPH07121753B2 (en) * 1993-01-22 1995-12-25 誠一 北林 Fluid ejection valve device that can be used both upright and inverted
GB2344857B (en) * 1998-12-15 2001-03-14 Bespak Plc Improvements in or relating to dispensing apparatus
US7722819B2 (en) * 2005-10-11 2010-05-25 Meadwestvaco Calmar, Inc. Fragrance product, dispenser, and dispenser assembly

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US4640443A (en) * 1983-06-08 1987-02-03 Corsette Douglas Frank Manually operated dispensing pump
US4615467A (en) * 1985-07-24 1986-10-07 Calmar, Inc. Liquid foam dispenser
EP1033174A2 (en) * 1999-03-03 2000-09-06 Microspray Delta S.p.A. Manually operated pump for dispensing liquids under pressure
US20040047826A1 (en) * 2002-09-06 2004-03-11 Cosmetic Laboratories Of America, A Division Of St. Ives Laboratories, Inc. Fragrance formulation containing pearlescent silicone oil beads

Also Published As

Publication number Publication date
EP1915921A1 (en) 2008-04-30
US20080099513A1 (en) 2008-05-01

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