EP3448198B1 - Fluid dispenser - Google Patents

Fluid dispenser Download PDF

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Publication number
EP3448198B1
EP3448198B1 EP17723453.1A EP17723453A EP3448198B1 EP 3448198 B1 EP3448198 B1 EP 3448198B1 EP 17723453 A EP17723453 A EP 17723453A EP 3448198 B1 EP3448198 B1 EP 3448198B1
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EP
European Patent Office
Prior art keywords
fluid product
sleeve
mounting part
applicator
fixed mounting
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
EP17723453.1A
Other languages
German (de)
French (fr)
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EP3448198A1 (en
Inventor
Jean-Paul Lecoutre
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.)
Aptar France SAS
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Aptar France SAS
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Publication date
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Publication of EP3448198A1 publication Critical patent/EP3448198A1/en
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Publication of EP3448198B1 publication Critical patent/EP3448198B1/en
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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
    • 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
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • 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
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • 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
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/051—Airtight containers

Definitions

  • the present invention relates to a fluid application device for applying a fluid product to a target surface using an applicator.
  • the transfer of fluid from the applicator which is an integral part of the fluid dispenser, takes place by contact of the applicator with the target surface, which can for example be the skin of a user of the dispenser.
  • the fluid product can be of low viscosity, like perfume, but preferably, it will be here a more viscous fluid product, like oil or serum.
  • FR2924696 which describes a fluid applicator device comprising an applicator defining a piston lip which slides in leaktight manner in a sampling chamber connected to a reservoir of fluid product by a dip tube.
  • a vacuum is generated inside the chamber, which has the effect of raising the fluid product from the reservoir through the dip tube.
  • the applicator defines a blind space, the opening of which is defined by the piston lip.
  • a tube which extends in the extension of the dip tube protrudes inside the blind space when the applicator is in place on the reservoir.
  • the user can apply the fluid product to his skin by bringing the piston lip into contact with the skin. It should be noted that the tubing which projects inside the blind space of the applicator does not come into contact with the applicator, of which only its piston lip comes into contact with the chamber.
  • the document is also known FR2978742 , which describes a fluid product applicator device having an architecture similar to that of the document FR2924696 .
  • the major difference with the previous document is that the fluid is injected inside the blind space in the form of an axial jet through an injection orifice which is permanently located outside the blind space of the applicator.
  • the piston which creates the vacuum in the chamber is located outside the blind space.
  • the fluid applicator devices of the two aforementioned prior art documents are designed for low viscosity fluid products, such as perfumes. Because of their architecture, they are not capable of handling more viscous fluid products, such as oils or serums.
  • the object of the present invention is to define a device for applying a fluid product which allows use with viscous fluid products, without however excluding other less viscous fluid products, such as perfumes. Therefore, an object of the present invention is to define a more universal fluid application device which can manage all types of fluid products from the most viscous to the least viscous.
  • the sampling chamber comprises a mouthpiece and a bottom, the tubing extending in the sampling chamber with the piston lip located closer to the bottom than the mouthpiece, when the applicator of fluid is mounted on the fixed mounting part.
  • the tubing forms a fitting housing for the dip tube. It can thus be said that the tubing forms the extension or an extension of the dip tube forming a piston lip. It is not excluded, in the context of the invention, that the dip tube forms the tubing.
  • the tubing is connected to an outer casing so as to extend substantially concentrically inside the outer casing, the sleeve extending between the tubing and the outer casing, when the fluid applicator is mounted on the fixed mounting part.
  • an annular reception space is formed between the tubing and the external envelope, the sleeve being received in this space, when the applicator is in place on the fixed part.
  • the external envelope forms drainage openings to evacuate from the reservoir of the fluid product which would be present between the tubing and the external envelope.
  • fluid product is present at the mouth of the sleeve, once the application operation is finished, so that this fluid product is introduced with the sleeve into the space formed between the tubing. and the outer shell.
  • This fluid product can be evacuated through the openings of drainage directly into the fluid reservoir, so that there is no risk of fluid accumulating in the housing formed between the tubing and the outer casing.
  • it can not create overpressure in this housing, since it is open on the tank. Indeed, such overpressure could hinder the replacement of the applicator on the fixed mounting part.
  • the fluid product applicator comprises a venting passage connecting the sampling chamber to the outside to evacuate the air present in the sampling chamber, when the fluid product applicator is replaced on the fixed mounting part.
  • the dip tube and the tubing filled with fluid product are not emptied into the tank by the air pressurized in the sampling chamber. Therefore, during the next sampling phase, the sampling chamber is immediately filled with fluid, as soon as the piston lip begins to slide in the cylindrical internal wall of the sleeve.
  • the venting passage is provided with a non-return valve allowing air to be evacuated to the outside and preventing penetration of outside air into the sampling chamber. In this way, it is guaranteed that outside air does not enter the sampling chamber when the applicator is removed from the fixed mounting part.
  • the fluid applicator comprises a gripping member to which the sleeve is fixed, the gripping member advantageously forming a housing receiving a movable venting valve member capable of coming to bear in leaktight support on a vent valve seat formed by the sleeve.
  • venting passage with or without valve
  • a vent passage could be implemented in the applicator devices documents FR2924696 and FR2978742 . Individual protection could therefore be sought for these characteristics.
  • the fixed mounting part may comprise a wiping lip which comes into sliding contact with an external wall of the sleeve.
  • This wiping lip can optionally be used to close the venting passage when the applicator is in place on the fixed mounting part.
  • the invention also defines a fluid dispenser comprising a fluid reservoir and a fluid application device as defined above.
  • the spirit of the invention is to define a sealed sliding barrel inside the sampling chamber and to provide the tubing which extends in the extension of the dip tube with a piston lip which comes in sliding contact. watertight with this sliding barrel.
  • the drainage openings and the vent passage make it possible to optimize the operation of the application device of the invention.
  • the dispenser for applying the fluid product of the invention is intended to be mounted on a reservoir for fluid product R, which is shown very schematically in dotted lines on the figure 1 .
  • This tank R can be of any kind and of any shape. It comprises an opening, generally in the form of a neck, on or in which the fluid application device of the invention is mounted.
  • the reservoir R is not a critical element for the present invention.
  • the fluid application device comprises two main constituent elements, namely a fixed mounting part 1 and a fluid applicator A.
  • the fixed mounting part 1 is intended to be fixedly and tightly mounted on the reservoir. fluid product R.
  • the fluid product applicator A is removably mounted on the fixed mounting part 1.
  • the fixed mounting part 1 comprises a fixing skirt 11 intended to cooperate with the tank R in order to fix the mounting piece 1 on the tank R in a stable and leaktight manner.
  • the fixing skirt 11 may for example comprise hooking heads intended to come into engagement with an appropriate profile formed by the neck of the reservoir.
  • the fixed mounting part 1 also comprises an annular plate 12 which can optionally be used to crush a neck seal J on the annular upper edge of the opening of the reservoir R.
  • the fixed mounting part 1 also forms a flange 13 which is threaded externally.
  • the fixed mounting part 1 also includes an outer casing 15 which extends from the flange 13 inside the tank R, more particularly at its neck.
  • This external envelope 15 is connected to an internal tube 17 by means of an annular connection flange 16.
  • the external envelope 15, and optionally the annular connection flange 16 are formed with drainage openings 156 which make the interior of the external envelope 15 communicate directly with the reservoir R.
  • the tube 17 extends concentrically and coaxially inside the external envelope 15 so as to define between them a space of annular reception E which is closed at its lower end by the annular connecting flange 16 and which is open at its upper end on the outside.
  • the tubing 17 defines at its lower part a fitting housing 18 for a dip tube 10 which extends in the tank R up to near its bottom.
  • the tube 17 extends axially in the extension of the dip tube 10.
  • the tube 17 forms a piston lip 19 which projects slightly radially outwards.
  • the tubing and the dip tube can be made in one piece.
  • the fixed mounting part 1 comprises a wiping lip 14 which is arranged inside the flange 13 extending towards the external envelope 15.
  • the fluid product applicator A essentially comprises two constituent parts, namely a sleeve 2 and a gripping member 3 which are fixedly connected to one another.
  • the sleeve 2 internally defines a sampling chamber C defining a mouth C1 and a bottom C2.
  • This sampling chamber C is partially defined by a cylindrical internal wall 2i of the sleeve 2.
  • This cylindrical internal wall 2i extends over at least part, and preferably over all, of the axial height of the sampling chamber C.
  • the tubing 17 of the fixed mounting part 1 is engaged inside the sampling chamber C with its piston lip 19 in sealed sliding contact with the cylindrical internal wall 2i of the sleeve. Since the fluid applicator A is removably mounted on the fixed mounting part 1, it is easily understood that the movement of the applicator A relative to the fixed mounting part 1 has the effect of causing the piston lip 19 against the cylindrical internal wall 2i.
  • the piston lip 19 When the applicator A is in place on the fixed mounting part 1, the piston lip 19 is located at or near the bottom C2 of the sampling chamber C. This is clearly visible on the figure 1 . In all cases, the piston lip 19 is closer to the bottom C2 than to the mouth C1.
  • the sleeve 2 extends in the annular receiving space E defined between the tubing 17 and the external envelope 15. The external wall 2e of the sleeve can even come into contact with the internal wall of the external envelope 15. When a wiping lip 14 is provided, this comes into leaktight sliding contact with the external wall 2e of the sleeve 2.
  • the sleeve 2 At its upper end, the sleeve 2 forms a fixing heel 22 which engages the gripping member 3. Below this heel 22, the sleeve also forms a projecting annular flange 25.
  • the gripping member 3 is intended to be able to be grasped easily by the fingers of a user. Its shape can be ergonomic and / or aesthetic.
  • the gripping member 3 forms a ring 32 which is internally threaded so as to be able to come into threaded or screwed engagement with the threaded flange 13 of the fixed mounting part 1.
  • the gripping member 3 also comprises a needle 33 around which is engaged the fixing heel 22 of the sleeve 2.
  • the gripping member 3 also forms an annular recess 36 in which is housed a seal 37 which comes to bear on the upper edge of the flange 13, when the applicator A is screwed onto the mounting part 1.
  • the protruding flange 25 comes partially closed the recess 36 so as to keep the seal 37 inside.
  • the fixing heel 22 is formed with one or more groove (s) defining a vent passage 23 which connects the sampling chamber C with the outside.
  • this venting passage can also be formed by grooves made at the level of the gripping member 3.
  • the venting passage extends along the needle 33, then on the outside of the fixing heel 22 to open at the seal 37.
  • the upper annular edge of the fixing heel 22 forms a valve seat 24 for a movable member 35 which is received in a housing 34 formed by the gripping member 3.
  • This movable member 35 may be in the form of an O-ring which selectively seals on the seat 24.
  • vent passage 2 is provided with a one-way valve allowing air trapped in the sampling chamber C to be evacuated to the outside by moving or slightly deforming the movable member 35. It should be noted that the venting passage 23 connects the sample C at its bottom C2, above the piston lip 19.
  • a user will start by unscrewing the applicator A by grasping the gripping member 3. This has the effect of slightly extracting the sleeve 2 from the annular receiving space E. In doing so, the piston lip 19 slides in the sleeve 2 on a stroke corresponding to the height of the thread between the flange 13 and the ring 32. Once unscrewing, the user will axially pull the applicator A upwards so as to extract the sleeve 2 even more the annular receiving space E. In doing so, the piston lip 19 will slide in leaktight fashion over the entire height of the cylindrical internal wall 2i of the sleeve 2.
  • This sealed sliding has the effect of generating a vacuum inside the sampling chamber C, so that the fluid product from the reservoir R will rise through the dip tube 10 and the tubing 17 into the chamber C.
  • the fluid product will be gradually deposited inside of the sleeve 2 from the bottom C2 to the mouth C1.
  • it is a viscous product, such as oil or serum
  • the piston lip 19 does not reach the entry of the vent passage 23, so that there will be no fluid at the entry of the vent passage 23
  • the piston lip 19 has left its tight contact with the cylindrical internal wall 2i, there is no more vacuum in the chamber, and there is no more suction of fluid.
  • the sleeve 2 is then extracted from the mounting part 1 and the user can bring the applicator to this chosen application surface, such as the skin.
  • the user then only has to move the mouthpiece C1 of the sleeve 2 against the skin to deposit the fluid product.
  • the sampling chamber C is empty, the user will replace the applicator A on the fixed mounting part 1.
  • the piston lip 19 again comes into leaktight sliding contact with the internal cylindrical wall 2i .
  • the outer wall 2e comes into sealed sliding contact with the wiping lip 14.
  • the sampling chamber C is then again formed and closed relative to the outside: it is however filled only with air.
  • the user will push the applicator A into the mounting part 1, which has the effect of moving the piston lip 19 inside the sleeve 2.
  • An overpressure is thus generated inside the sampling chamber C, and the pressurized air is evacuated through the venting passage 23, optionally provided with a non-return valve. It is thus guaranteed that the tubing 19 and the dip tube 10 are not, or practically not, drained of the fluid product which they contain.
  • the fluid product is already present in the dip tube 10, and possibly in the tubing 17, so that the sampling chamber C will be directly filled with fluid product.
  • vent passage 23 When the vent passage 23 is fitted with a non-return valve, it also prevents outside air from entering the interior of the chamber C through the vent passage 23. In the case where the product fluid would have accumulated at the lower end of the sleeve 2, it could regain the reservoir R through the drainage openings 156.
  • venting passage 23 it is possible to dispense with the venting passage 23: however, in this case, care must be taken to ensure that the volume of the sampling chamber C is greater than the cumulative volume of the tubing 17 and the tube plunger 10.
  • the wiping lip 14, as well as the drainage passages 156, are also optional.
  • venting passage 23 extends directly through the wall thickness of the sleeve 2 so as to directly communicate the sampling chamber C with the external wall 2e, more particularly at the level of the wiping lip 14' .
  • this lip 14 ' can be produced with two sealed contacts 141 and 142 between which opens the vent passage 123'.
  • the venting passage 23 ′ is sealed.
  • the vent passage 23 ' is devoid of non-return valve.
  • it has the advantage of being able to be implemented very easily, since the venting passage 23 ′ comes down to a simple rectilinear hole.
  • vent passage 23 ′ is in the form of a straight axial hole which connects the bottom C2 of the sampling chamber C to a seal 37 ′ which is housed in a recess 36 ′ formed by the member gripping 3.
  • the sleeve 2 forms around the outlet of the venting passage 23 'a valve seat 24' against which the seal 37 'can come into sealing contact selectively.
  • the seal 37 ' is also used to make a seal with the upper edge of the flange 13. It can thus be said that this seal 37' fulfills a double function, namely that of organ movable to form a one-way valve with the valve seat 24 'and static seal by being compressed on the flange 13.
  • venting passage and in particular in association with an applicator device having a sampling chamber whose piston is located outside of the sleeve.
  • a dispenser for applying a fluid product which is charged by vacuum produced by a sealed sliding contact with the internal wall of the sampling chamber.
  • the venting of the chamber ensures optimum filling of the applicator.

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Description

La présente invention concerne un dispositif d'application de produit fluide permettant d'appliquer un produit fluide sur une surface cible à l'aide d'un applicateur. Le transfert de produit fluide à partir de l'applicateur, qui fait partie intégrante du distributeur de produit fluide, s'effectue par contact de l'applicateur avec la surface cible, qui peut par exemple être la peau d'un utilisateur du distributeur. Le produit fluide peut être de faible viscosité, comme du parfum, mais de préférence, il s'agira ici d'un produit fluide plus visqueux, comme de l'huile ou du sérum.The present invention relates to a fluid application device for applying a fluid product to a target surface using an applicator. The transfer of fluid from the applicator, which is an integral part of the fluid dispenser, takes place by contact of the applicator with the target surface, which can for example be the skin of a user of the dispenser. The fluid product can be of low viscosity, like perfume, but preferably, it will be here a more viscous fluid product, like oil or serum.

Dans l'art antérieur, on connaît le document FR2924696 qui décrit un dispositif applicateur de produit fluide comprenant un applicateur définissant une lèvre de piston qui coulisse de manière étanche dans une chambre de prélèvement reliée à un réservoir de produit fluide par un tube plongeur. Lorsque l'on retire l'applicateur de la chambre, une dépression est générée à l'intérieur de la chambre, ce qui a pour effet de faire remonter du produit fluide du réservoir à travers le tube plongeur. L'applicateur définit un espace borgne dont l'ouverture est définie par la lèvre de piston. D'autre part, une tubulure qui s'étend dans le prolongement du tube plongeur fait saillie à l'intérieur de l'espace borgne lorsque l'applicateur est en place sur le réservoir. Ainsi, le produit fluide aspiré à travers le tube plongeur et la tubulure remplit l'espace borgne par son fond. Une fois l'applicateur complètement retiré du réservoir, l'utilisateur peut appliquer le produit fluide sur sa peau en mettant en contact la lèvre de piston avec la peau. Il est à noter que la tubulure qui fait saillie à l'intérieur de l'espace borgne de l'applicateur ne vient pas au contact avec l'applicateur, dont seule sa lèvre de piston vient en contact avec la chambre.In the prior art, the document is known FR2924696 which describes a fluid applicator device comprising an applicator defining a piston lip which slides in leaktight manner in a sampling chamber connected to a reservoir of fluid product by a dip tube. When the applicator is withdrawn from the chamber, a vacuum is generated inside the chamber, which has the effect of raising the fluid product from the reservoir through the dip tube. The applicator defines a blind space, the opening of which is defined by the piston lip. On the other hand, a tube which extends in the extension of the dip tube protrudes inside the blind space when the applicator is in place on the reservoir. Thus, the fluid product sucked through the dip tube and the tubing fills the blind space by its bottom. Once the applicator is completely removed from the reservoir, the user can apply the fluid product to his skin by bringing the piston lip into contact with the skin. It should be noted that the tubing which projects inside the blind space of the applicator does not come into contact with the applicator, of which only its piston lip comes into contact with the chamber.

Dans l'art antérieur, on connaît également le document FR2978742 , qui décrit un dispositif applicateur de produit fluide présentant une architecture similaire à celle du document FR2924696 . La différence majeure avec le document précédent est que le produit fluide est injecté à l'intérieur de l'espace borgne sous la forme d'un jet axial à travers un orifice d'injection qui est situé en permanence à l'extérieur de l'espace borgne de l'applicateur. Le piston qui permet de créer la dépression dans la chambre est situé à l'extérieur de l'espace borgne.In the prior art, the document is also known FR2978742 , which describes a fluid product applicator device having an architecture similar to that of the document FR2924696 . The major difference with the previous document is that the fluid is injected inside the blind space in the form of an axial jet through an injection orifice which is permanently located outside the blind space of the applicator. The piston which creates the vacuum in the chamber is located outside the blind space.

Les dispositifs applicateurs de produit fluide des deux documents de l'art antérieur précités sont conçus pour des produits fluides de faible viscosité, tels que des parfums. Du fait de leur architecture, ils ne sont pas aptes à gérer des produits fluides plus visqueux, tels que des huiles ou des sérums.The fluid applicator devices of the two aforementioned prior art documents are designed for low viscosity fluid products, such as perfumes. Because of their architecture, they are not capable of handling more viscous fluid products, such as oils or serums.

La présente invention a pour but de définir un dispositif d'application de produit fluide qui permet une utilisation avec des produits fluides visqueux, sans pour autant exclure les autres produits fluides moins visqueux, tels que les parfums. De ce fait, un but de la présente invention est de définir un dispositif d'application de produit fluide plus universel qui peut gérer tous types de produits fluides des plus visqueux aux moins visqueux.The object of the present invention is to define a device for applying a fluid product which allows use with viscous fluid products, without however excluding other less viscous fluid products, such as perfumes. Therefore, an object of the present invention is to define a more universal fluid application device which can manage all types of fluid products from the most viscous to the least viscous.

Pour ce faire, la présente invention propose un dispositif d'application de produit fluide, comprenant :

  • une pièce fixe de montage destinée à être fixée sur un réservoir contenant du produit fluide, cette pièce fixe de montage comprenant un tube plongeur destiné à s'étendre dans le réservoir,
  • un applicateur de produit fluide monté de manière amovible sur la pièce fixe de montage, cet applicateur de produit fluide comprenant un manchon définissant intérieurement une chambre de prélèvement adaptée à prélever du produit fluide aspiré à travers le tube plongeur,
caractérisé en ce que le manchon comprend une paroi interne cylindrique et la pièce fixe de montage comprend une tubulure qui s'étend dans le prolongement du tube plongeur et qui forme une lèvre de piston apte à venir en contact de coulissement étanche avec la paroi interne cylindrique du manchon. Ainsi, contrairement au document FR2924696 et FR2978742 , le pistonnage s'effectue à l'intérieur de la chambre de prélèvement, et non pas à l'extérieur. De cette manière, on garantit que le produit fluide aspiré à travers le tube plongeur et la tubulure est déposé dans la chambre de prélèvement en commençant par son fond. Lorsque le produit fluide est visqueux, il n'est pas injecté dans la chambre de prélèvement, mais plutôt déposé progressivement à mesure que la tubulure est extraite du manchon. Il est à noter que l'aspiration à travers le tube plongeur et la tubulure cesse dès que la lèvre de piston de la tubulure quitte son contact étanche avec la paroi interne cylindrique du manchon. De ce fait, il n'y a pas de produit fluide autour de la paroi externe du manchon.To do this, the present invention provides a device for applying a fluid product, comprising:
  • a fixed mounting part intended to be fixed on a reservoir containing fluid, this fixed mounting part comprising a dip tube intended to extend in the reservoir,
  • a fluid product applicator removably mounted on the fixed mounting part, this fluid product applicator comprising a sleeve internally defining a sampling chamber suitable for withdrawing fluid product sucked through the dip tube,
characterized in that the sleeve comprises a cylindrical internal wall and the fixed mounting part comprises a tube which extends in the extension of the dip tube and which forms a piston lip capable of coming into tight sliding contact with the cylindrical internal wall of the sleeve. So unlike the document FR2924696 and FR2978742 , the pistoning takes place inside the sampling chamber, and not outside. In this way, it is guaranteed that the fluid product sucked through the dip tube and the tubing is deposited in the sampling chamber starting from its bottom. When the fluid is viscous, it is not injected into the sampling chamber, but rather gradually deposited as the tubing is extracted from the sleeve. It should be noted that the suction through the dip tube and the tubing ceases as soon as the piston lip of the tubing leaves its sealed contact with the cylindrical internal wall of the sleeve. Therefore, there is no fluid around the outer wall of the sleeve.

Selon une caractéristique avantageuse de l'invention, la chambre de prélèvement comprend une embouchure et un fond, la tubulure s'étendant dans la chambre de prélèvement avec la lèvre de piston située plus près du fond que de l'embouchure, lorsque l'applicateur de produit fluide est monté sur la pièce fixe de montage. Ainsi, on garantit que le produit fluide est déposé dans la chambre de prélèvement à partir de son fond et progressivement jusqu'à son embouchure.According to an advantageous characteristic of the invention, the sampling chamber comprises a mouthpiece and a bottom, the tubing extending in the sampling chamber with the piston lip located closer to the bottom than the mouthpiece, when the applicator of fluid is mounted on the fixed mounting part. Thus, it is guaranteed that the fluid product is deposited in the sampling chamber from its bottom and gradually until its mouth.

Selon un autre aspect avantageux de l'invention, la tubulure forme un logement d'emmanchage pour le tube plongeur. On peut ainsi dire que la tubulure forme le prolongement ou une extension du tube plongeur formant une lèvre de piston. Il n'est pas exclu, dans le cadre de l'invention, que le tube plongeur forme la tubulure.According to another advantageous aspect of the invention, the tubing forms a fitting housing for the dip tube. It can thus be said that the tubing forms the extension or an extension of the dip tube forming a piston lip. It is not excluded, in the context of the invention, that the dip tube forms the tubing.

Selon un mode de réalisation avantageux, la tubulure est reliée à une enveloppe externe de manière à s'étendre sensiblement concentriquement à l'intérieur de l'enveloppe externe, le manchon s'étendant entre la tubulure et l'enveloppe externe, lorsque l'applicateur de produit fluide est monté sur la pièce fixe de montage. En d'autres termes, on peut dire qu'un espace de réception annulaire est formé entre la tubulure et l'enveloppe externe, le manchon étant reçu dans cet espace, lorsque l'applicateur est en place sur la pièce fixe. Avantageusement, l'enveloppe externe forme des ouvertures de drainage pour évacuer dans le réservoir du produit fluide qui serait présent entre la tubulure et l'enveloppe externe. En effet, il est possible que du produit fluide soit présent au niveau de l'embouchure du manchon, une fois l'opération d'application terminée, de sorte que ce produit fluide soit introduit avec le manchon dans l'espace formé entre la tubulure et l'enveloppe externe. Ce produit fluide pourra être évacué à travers les ouvertures de drainage directement dans le réservoir de produit fluide, de sorte qu'il n'y a aucun risque que du produit fluide s'accumule dans le logement formé entre la tubulure et l'enveloppe externe. De plus, il ne peut pas se créer de surpression dans ce logement, étant donné qu'il est ouvert sur le réservoir. En effet, une telle surpression pourrait gêner la remise en place de l'applicateur sur la pièce fixe de montage.According to an advantageous embodiment, the tubing is connected to an outer casing so as to extend substantially concentrically inside the outer casing, the sleeve extending between the tubing and the outer casing, when the fluid applicator is mounted on the fixed mounting part. In other words, it can be said that an annular reception space is formed between the tubing and the external envelope, the sleeve being received in this space, when the applicator is in place on the fixed part. Advantageously, the external envelope forms drainage openings to evacuate from the reservoir of the fluid product which would be present between the tubing and the external envelope. In fact, it is possible that fluid product is present at the mouth of the sleeve, once the application operation is finished, so that this fluid product is introduced with the sleeve into the space formed between the tubing. and the outer shell. This fluid product can be evacuated through the openings of drainage directly into the fluid reservoir, so that there is no risk of fluid accumulating in the housing formed between the tubing and the outer casing. In addition, it can not create overpressure in this housing, since it is open on the tank. Indeed, such overpressure could hinder the replacement of the applicator on the fixed mounting part.

Selon une autre caractéristique avantageuse de l'invention, l'applicateur de produit fluide comprend un passage d'éventation reliant la chambre de prélèvement à l'extérieur pour évacuer l'air présent dans la chambre de prélèvement, lorsque l'applicateur de produit fluide est remis en place sur la pièce fixe de montage. Ainsi, le tube plongeur et la tubulure remplis de produit fluide ne sont pas vidangés dans le réservoir par l'air mis sous pression dans la chambre de prélèvement. De ce fait, lors de la prochaine phase de prélèvement, la chambre de prélèvement est immédiatement remplie de produit fluide, dès que la lèvre de piston commence son coulissement dans la paroi interne cylindrique du manchon.According to another advantageous characteristic of the invention, the fluid product applicator comprises a venting passage connecting the sampling chamber to the outside to evacuate the air present in the sampling chamber, when the fluid product applicator is replaced on the fixed mounting part. Thus, the dip tube and the tubing filled with fluid product are not emptied into the tank by the air pressurized in the sampling chamber. Therefore, during the next sampling phase, the sampling chamber is immediately filled with fluid, as soon as the piston lip begins to slide in the cylindrical internal wall of the sleeve.

Avantageusement, le passage d'éventation est pourvu d'un clapet anti-retour autorisant une évacuation de l'air vers l'extérieur et empêchant une pénétration d'air extérieur dans la chambre de prélèvement. De cette manière, on garantit que de l'air extérieur ne parvient pas dans la chambre de prélèvement lorsque l'on retire l'applicateur de la pièce fixe de montage.Advantageously, the venting passage is provided with a non-return valve allowing air to be evacuated to the outside and preventing penetration of outside air into the sampling chamber. In this way, it is guaranteed that outside air does not enter the sampling chamber when the applicator is removed from the fixed mounting part.

Selon une forme de réalisation pratique, l'applicateur de produit fluide comprend un organe de préhension auquel le manchon est fixé, l'organe de préhension formant avantageusement un logement recevant un organe mobile de clapet d'éventation apte à venir en appui étanche sur un siège de clapet d'éventation formé par le manchon.According to a practical embodiment, the fluid applicator comprises a gripping member to which the sleeve is fixed, the gripping member advantageously forming a housing receiving a movable venting valve member capable of coming to bear in leaktight support on a vent valve seat formed by the sleeve.

Il est à noter que les caractéristiques liées au passage d'éventation (avec ou sans clapet) peuvent être mises en œuvre sur n'importe quel distributeur applicateur, avec une chambre de prélèvement formée à l'intérieur et/ou à l'extérieur de l'applicateur. Un passage d'éventation (avec ou sans clapet) pourrait être mis en œuvre dans les dispositifs applicateurs des documents FR2924696 et FR2978742 . Une protection individuelle pourrait donc être recherchée pour ces caractéristiques.It should be noted that the characteristics linked to the venting passage (with or without valve) can be implemented on any applicator distributor, with a sampling chamber formed inside and / or outside of the applicator. A vent passage (with or without valve) could be implemented in the applicator devices documents FR2924696 and FR2978742 . Individual protection could therefore be sought for these characteristics.

Selon une autre caractéristique intéressante de l'invention, la pièce fixe de montage peut comprendre une lèvre d'essorage qui vient en contact de coulissant avec une paroi externe du manchon. On peut éventuellement se servir de cette lèvre d'essorage pour obturer le passage d'éventation lorsque l'applicateur est en place sur la pièce fixe de montage.According to another advantageous characteristic of the invention, the fixed mounting part may comprise a wiping lip which comes into sliding contact with an external wall of the sleeve. This wiping lip can optionally be used to close the venting passage when the applicator is in place on the fixed mounting part.

L'invention définit également un distributeur de produit fluide comprenant un réservoir de produit fluide et un dispositif d'application de produit fluide tels que définis ci-dessus.The invention also defines a fluid dispenser comprising a fluid reservoir and a fluid application device as defined above.

L'esprit de l'invention est de définir un fût de coulissement étanche à l'intérieur de la chambre de prélèvement et de pourvoir la tubulure qui s'étend dans le prolongement du tube plongeur avec une lèvre de piston qui vient en contact de coulissement étanche avec ce fût de coulissement. Les ouvertures de drainage et le passage d'éventation permettent d'optimiser le fonctionnement du dispositif d'application de l'invention.The spirit of the invention is to define a sealed sliding barrel inside the sampling chamber and to provide the tubing which extends in the extension of the dip tube with a piston lip which comes in sliding contact. watertight with this sliding barrel. The drainage openings and the vent passage make it possible to optimize the operation of the application device of the invention.

L'invention sera maintenant plus amplement décrite, en référence aux dessins joints, donnant à titre d'exemple non limitatif, un mode de réalisation de l'invention avec deux variantes.The invention will now be described more fully, with reference to the accompanying drawings, giving by way of nonlimiting example, an embodiment of the invention with two variants.

Sur les figures :

  • La figure 1 est une vue en coupe transversale verticale à travers un dispositif d'application de produit fluide selon un mode de réalisation non limitatif de l'invention,
  • La figure 2 est une vue en perspective du manchon de l'invention,
  • Les figures 3 et 4 sont des vues en perspective avec des angles différents de la pièce fixe de montage de l'invention, et
  • Les figures 5 et 6 représentent deux variantes de réalisation pour le passage d'éventation de la chambre de prélèvement.
In the figures:
  • The figure 1 is a vertical cross-sectional view through a fluid application device according to a nonlimiting embodiment of the invention,
  • The figure 2 is a perspective view of the sleeve of the invention,
  • The figures 3 and 4 are perspective views with different angles of the fixed mounting part of the invention, and
  • The Figures 5 and 6 represent two alternative embodiments for the venting passage of the sampling chamber.

On se référera aux figures 1 à 4 pour décrire un mode de réalisation non limitatif de l'invention. Le distributeur d'application de produit fluide de l'invention est destiné à être monté sur un réservoir de produit fluide R, qui est représenté de manière très schématique en pointillés sur la figure 1. Ce réservoir R peut être de toute nature et de toute forme. Il comprend une ouverture, généralement sous la forme d'un col, sur ou dans laquelle le dispositif d'application de produit fluide de l'invention est monté. Le réservoir R n'est pas un élément critique pour la présente invention.We will refer to figures 1 to 4 to describe a non-limiting embodiment of the invention. The dispenser for applying the fluid product of the invention is intended to be mounted on a reservoir for fluid product R, which is shown very schematically in dotted lines on the figure 1 . This tank R can be of any kind and of any shape. It comprises an opening, generally in the form of a neck, on or in which the fluid application device of the invention is mounted. The reservoir R is not a critical element for the present invention.

Le dispositif d'application de produit fluide comprend deux éléments constitutifs principaux, à savoir une pièce fixe de montage 1 et un applicateur de produit fluide A. La pièce fixe de montage 1 est destinée à être montée de manière fixe et étanche sur le réservoir de produit fluide R. L'applicateur de produit fluide A est monté de manière amovible sur la pièce fixe de montage 1.The fluid application device comprises two main constituent elements, namely a fixed mounting part 1 and a fluid applicator A. The fixed mounting part 1 is intended to be fixedly and tightly mounted on the reservoir. fluid product R. The fluid product applicator A is removably mounted on the fixed mounting part 1.

La pièce fixe de montage 1 comprend une jupe de fixation 11 destinée à coopérer avec le réservoir R pour fixer de manière stable et étanche la pièce de montage 1 sur le réservoir R. La jupe de fixation 11 peut par exemple comprendre des têtes d'accrochage destinées à venir en prise avec un profil approprié formé par le col du réservoir. On peut également envisager de former la jupe de fixation 11 avec un filetage interne destiné à coopérer avec un filetage externe formé par le col du réservoir. Là encore, le type de technique d'accrochage pour monter la jupe de fixation 11 sur le réservoir R n'est pas critique pour la présente invention. La pièce fixe de montage 1 comprend également un plateau annulaire 12 qui peut éventuellement servir à écraser un joint de col J sur le bord supérieur annulaire de l'ouverture du réservoir R. La pièce fixe de montage 1 forme également une bride 13 qui est filetée extérieurement. La pièce fixe de montage 1 comprend aussi une enveloppe extérieure 15 qui s'étend à partir de la bride 13 à l'intérieur du réservoir R, plus particulièrement au niveau de son col. Cette enveloppe externe 15 est reliée à une tubulure interne 17 par l'intermédiaire d'une bride de liaison annulaire 16. Avantageusement, l'enveloppe externe 15, et éventuellement la bride annulaire de liaison 16, sont formées avec des ouvertures de drainage 156 qui font communiquer l'intérieur de l'enveloppe externe 15 directement avec le réservoir R. La tubulure 17 s'étend concentriquement et coaxialement à l'intérieur de l'enveloppe externe 15 de manière à définir entre eux un espace de réception annulaire E qui est fermé à son extrémité inférieure par la bride annulaire de liaison 16 et qui est ouvert à son extrémité supérieure sur l'extérieur. La tubulure 17 définit au niveau de sa partie inférieure un logement d'emmanchage 18 pour un tube plongeur 10 qui s'étend dans le réservoir R jusqu'à proximité de son fond. Ainsi, la tubulure 17 s'étend axialement dans le prolongement du tube plongeur 10. A son extrémité supérieure, la tubulure 17 forme une lèvre de piston 19 qui fait légèrement saillie radialement vers l'extérieur. En variante, la tubulure et le tube plongeur peuvent être réalisés de manière monobloc.The fixed mounting part 1 comprises a fixing skirt 11 intended to cooperate with the tank R in order to fix the mounting piece 1 on the tank R in a stable and leaktight manner. The fixing skirt 11 may for example comprise hooking heads intended to come into engagement with an appropriate profile formed by the neck of the reservoir. One can also consider forming the fixing skirt 11 with an internal thread intended to cooperate with an external thread formed by the neck of the reservoir. Again, the type of attachment technique for mounting the fixing skirt 11 on the tank R is not critical for the present invention. The fixed mounting part 1 also comprises an annular plate 12 which can optionally be used to crush a neck seal J on the annular upper edge of the opening of the reservoir R. The fixed mounting part 1 also forms a flange 13 which is threaded externally. The fixed mounting part 1 also includes an outer casing 15 which extends from the flange 13 inside the tank R, more particularly at its neck. This external envelope 15 is connected to an internal tube 17 by means of an annular connection flange 16. Advantageously, the external envelope 15, and optionally the annular connection flange 16, are formed with drainage openings 156 which make the interior of the external envelope 15 communicate directly with the reservoir R. The tube 17 extends concentrically and coaxially inside the external envelope 15 so as to define between them a space of annular reception E which is closed at its lower end by the annular connecting flange 16 and which is open at its upper end on the outside. The tubing 17 defines at its lower part a fitting housing 18 for a dip tube 10 which extends in the tank R up to near its bottom. Thus, the tube 17 extends axially in the extension of the dip tube 10. At its upper end, the tube 17 forms a piston lip 19 which projects slightly radially outwards. Alternatively, the tubing and the dip tube can be made in one piece.

Optionnellement, la pièce fixe de montage 1 comprend une lèvre d'essorage 14 qui est disposée à l'intérieur de la bride 13 en s'étendant vers l'enveloppe externe 15.Optionally, the fixed mounting part 1 comprises a wiping lip 14 which is arranged inside the flange 13 extending towards the external envelope 15.

L'applicateur de produit fluide A comprend essentiellement deux pièces constitutives, à savoir un manchon 2 et un organe de préhension 3 qui sont raccordés fixement l'un à l'autre.The fluid product applicator A essentially comprises two constituent parts, namely a sleeve 2 and a gripping member 3 which are fixedly connected to one another.

Le manchon 2 définit intérieurement une chambre de prélèvement C définissant une embouchure C1 et un fond C2. Cette chambre de prélèvement C est partiellement définie par une paroi interne cylindrique 2i du manchon 2. Cette paroi interne cylindrique 2i s'étend sur au moins une partie, et de préférence sur la totalité, de la hauteur axiale de la chambre de prélèvement C. Selon l'invention, la tubulure 17 de la pièce fixe de montage 1 est engagée à l'intérieur de la chambre de prélèvement C avec sa lèvre de piston 19 en contact de coulissement étanche avec la paroi interne cylindrique 2i du manchon. Etant donné que l'applicateur de produit fluide A est monté de manière amovible sur la pièce fixe de montage 1, on comprend aisément que le déplacement de l'applicateur A par rapport à la pièce fixe de montage 1 a pour effet de faire coulisser la lèvre de piston 19 contre la paroi interne cylindrique 2i. Lorsque l'applicateur A est en place sur la pièce fixe de montage 1, la lèvre de piston 19 est située au niveau ou à proximité du fond C2 de la chambre de prélèvement C. Ceci est clairement visible sur la figure 1. Dans tous les cas, la lèvre de piston 19 est plus proche du fond C2 que de l'embouchure C1. On peut également voir que le manchon 2 s'étend dans l'espace de réception annulaire E défini entre la tubulure 17 et l'enveloppe externe 15. La paroi externe 2e du manchon peut même venir en contact de la paroi interne de l'enveloppe externe 15. Lorsqu'une lèvre d'essorage 14 est prévue, celle-ci vient au contact de coulissement étanche avec la paroi externe 2e du manchon 2. Ainsi, du produit fluide qui serait présent sur la paroi externe 2e serait raclé par la lèvre d'essorage 14, et ce produit tomberait au fond de l'espace de réception annulaire E où sont formées les ouvertures de passage 156, de sorte que le produit fluide pourrait regagner le réservoir R. D'autre part, les ouvertures de passage 156 évitent de créer une surpression à l'intérieur de l'espace de réception annulaire E.The sleeve 2 internally defines a sampling chamber C defining a mouth C1 and a bottom C2. This sampling chamber C is partially defined by a cylindrical internal wall 2i of the sleeve 2. This cylindrical internal wall 2i extends over at least part, and preferably over all, of the axial height of the sampling chamber C. According to the invention, the tubing 17 of the fixed mounting part 1 is engaged inside the sampling chamber C with its piston lip 19 in sealed sliding contact with the cylindrical internal wall 2i of the sleeve. Since the fluid applicator A is removably mounted on the fixed mounting part 1, it is easily understood that the movement of the applicator A relative to the fixed mounting part 1 has the effect of causing the piston lip 19 against the cylindrical internal wall 2i. When the applicator A is in place on the fixed mounting part 1, the piston lip 19 is located at or near the bottom C2 of the sampling chamber C. This is clearly visible on the figure 1 . In all cases, the piston lip 19 is closer to the bottom C2 than to the mouth C1. We can also see that the sleeve 2 extends in the annular receiving space E defined between the tubing 17 and the external envelope 15. The external wall 2e of the sleeve can even come into contact with the internal wall of the external envelope 15. When a wiping lip 14 is provided, this comes into leaktight sliding contact with the external wall 2e of the sleeve 2. Thus, fluid which would be present on the external wall 2e would be scraped by the wiping lip 14, and this product would fall to the bottom of the annular reception space E where the passage openings 156 are formed, so that the fluid product could return to the reservoir R. On the other hand, the passage openings 156 avoid creating an overpressure inside the annular receiving space E.

A son extrémité supérieure, le manchon 2 forme un talon de fixation 22 qui vient en prise avec l'organe de préhension 3. En dessous de ce talon 22, le manchon forme également une collerette annulaire saillante 25.At its upper end, the sleeve 2 forms a fixing heel 22 which engages the gripping member 3. Below this heel 22, the sleeve also forms a projecting annular flange 25.

L'organe de préhension 3 est destiné à pouvoir être saisi aisément par les doigts d'un utilisateur. Sa forme peut être ergonomique et/ou esthétique. L'organe de préhension 3 forme une bague 32 qui est filetée intérieurement de manière à pouvoir venir en prise filée ou vissée avec la bride filetée 13 de la pièce fixe de montage 1. Ainsi, l'applicateur A peut être monté de manière stable sur la pièce fixe de montage 1. Le retrait de l'applicateur A se fait par dévissage. L'organe de préhension 3 comprend également un pointeau 33 autour duquel est engagé le talon de fixation 22 du manchon 2. L'organe de préhension 3 forme également un évidement annulaire 36 dans lequel est logé un joint d'étanchéité 37 qui vient en appui sur le bord supérieur de la bride 13, lorsque l'applicateur A est vissé sur la pièce de montage 1. La collerette saillante 25 vient partiellement refermée l'évidement 36 de manière à maintenir le joint 37 à l'intérieur.The gripping member 3 is intended to be able to be grasped easily by the fingers of a user. Its shape can be ergonomic and / or aesthetic. The gripping member 3 forms a ring 32 which is internally threaded so as to be able to come into threaded or screwed engagement with the threaded flange 13 of the fixed mounting part 1. Thus, the applicator A can be stably mounted on the fixed mounting part 1. The removal of the applicator A is done by unscrewing. The gripping member 3 also comprises a needle 33 around which is engaged the fixing heel 22 of the sleeve 2. The gripping member 3 also forms an annular recess 36 in which is housed a seal 37 which comes to bear on the upper edge of the flange 13, when the applicator A is screwed onto the mounting part 1. The protruding flange 25 comes partially closed the recess 36 so as to keep the seal 37 inside.

Avantageusement, le talon de fixation 22 est formé avec une ou plusieurs saignée(s) définissant un passage d'éventation 23 qui relie la chambre de prélèvement C avec l'extérieur. Sans sortir du cadre de l'invention, ce passage d'éventation peut également être formé par des saignées réalisées au niveau de l'organe de préhension 3. Dans l'exemple représenté sur la figure 1, le passage d'éventation s'étend le long du pointeau 33, puis sur l'extérieur du talon de fixation 22 pour déboucher au niveau du joint d'étanchéité 37. Avantageusement, le bord annulaire supérieur du talon de fixation 22 forme un siège de clapet 24 pour un organe mobile 35 qui est reçu dans un logement 34 formé par l'organe de préhension 3. Cet organe mobile 35 peut se présenter sous la forme d'un joint torique qui repose sélectivement de manière étanche sur le siège 24. Ainsi, le passage d'éventation 2 est doté d'un clapet unidirectionnel permettant à de l'air prisonnier dans la chambre de prélèvement C d'être évacué vers l'extérieur en déplaçant ou déformant légèrement l'organe mobile 35. Il est à noter que le passage d'éventation 23 relie la chambre de prélèvement C au niveau de son fond C2, au-dessus de la lèvre de piston 19.Advantageously, the fixing heel 22 is formed with one or more groove (s) defining a vent passage 23 which connects the sampling chamber C with the outside. Without departing from the scope of the invention, this venting passage can also be formed by grooves made at the level of the gripping member 3. In the example shown in the figure 1 , the venting passage extends along the needle 33, then on the outside of the fixing heel 22 to open at the seal 37. Advantageously, the upper annular edge of the fixing heel 22 forms a valve seat 24 for a movable member 35 which is received in a housing 34 formed by the gripping member 3. This movable member 35 may be in the form of an O-ring which selectively seals on the seat 24. Thus, the vent passage 2 is provided with a one-way valve allowing air trapped in the sampling chamber C to be evacuated to the outside by moving or slightly deforming the movable member 35. It should be noted that the venting passage 23 connects the sample C at its bottom C2, above the piston lip 19.

En partant de l'état fermé de repos représenté sur la figure 1, un utilisateur va commencer par dévisser l'applicateur A en saisissant l'organe de préhension 3. Ceci a pour effet d'extraire légèrement le manchon 2 de l'espace de réception annulaire E. Ce faisant, la lèvre de piston 19 coulisse dans le manchon 2 sur une course correspondant à la hauteur du filetage entre la bride 13 et la bague 32. Une fois le dévissage effectué, l'utilisateur va tirer axialement l'applicateur A vers le haut de manière à extraire encore davantage le manchon 2 de l'espace de réception annulaire E. Ce faisant, la lèvre de piston 19 va coulisser de manière étanche sur toute la hauteur de la paroi interne cylindrique 2i du manchon 2. Ce coulissement étanche a pour effet de générer une dépression à l'intérieur de la chambre de prélèvement C, de sorte que du produit fluide issu du réservoir R va remonter à travers le tube plongeur 10 et la tubulure 17 jusque dans la chambre C. Ainsi, le produit fluide va être déposé progressivement à l'intérieur du manchon 2 en partant du fond C2 jusqu'à l'embouchure C1. Lorsqu'il s'agit d'un produit visqueux, tel que de l'huile ou du sérum, on peut véritablement parler de dépôt délicat du produit fluide à l'intérieur du manchon. Il n'y a pas de phénomène d'injection avec les turbulences associées. Avantageusement, la lèvre de piston 19 ne va pas jusqu'en contact de l'entrée du passage d'éventation 23, de sorte qu'il n'y aura pas de produit fluide au niveau de l'entrée du passage d'éventation 23. On peut ainsi dire que le fond C2 de la chambre C ne sera pas rempli de produit fluide. Une fois que la lèvre de piston 19 a quitté son contact étanche avec la paroi interne cylindrique 2i, il n'y a plus de dépression dans la chambre, et il n'y a plus d'aspiration de produit fluide. Le manchon 2 est alors extrait de la pièce de montage 1 et l'utilisateur peut amener l'applicateur vers cette surface d'application choisie, telle que la peau. Il suffit alors à l'utilisateur de déplacer l'embouchure C1 du manchon 2 contre la peau pour déposer du produit fluide. Lorsque la chambre de prélèvement C est vide, l'utilisateur va remettre en place l'applicateur A sur la pièce fixe de montage 1. Ce faisant, la lèvre de piston 19 vient à nouveau en contact étanche de coulissement avec la paroi interne cylindrique 2i. Simultanément, la paroi externe 2e vient en contact de coulissement étanche avec la lèvre d'essorage 14. La chambre de prélèvement C est alors à nouveau constituée et fermée par rapport à l'extérieur : elle est toutefois remplie uniquement d'air. L'utilisateur va enfoncer l'applicateur A dans la pièce de montage 1, ce qui a pour effet de déplacer la lèvre de piston 19 à l'intérieur du manchon 2. Une surpression est ainsi générée à l'intérieur de la chambre de prélèvement C, et l'air sous pression est évacué à travers le passage d'éventation 23, éventuellement doté d'un clapet anti-retour. On garantit ainsi que la tubulure 19 et le tube plongeur 10 ne sont pas, ou pratiquement pas, vidangés du produit fluide qu'ils contiennent. Ainsi, lors d'un retrait ultérieur de l'applicateur A, le produit fluide est déjà présent dans le tube plongeur 10, et éventuellement dans la tubulure 17, de sorte que la chambre de prélèvement C va directement être remplie de produit fluide. Lorsque le passage d'éventation 23 est doté d'un clapet anti-retour, on évite également que de l'air extérieur ne pénètre à l'intérieur de la chambre C à travers le passage d'éventation 23. Au cas où du produit fluide se serait accumulé à l'extrémité inférieure du manchon 2, il pourrait regagner le réservoir R à travers les ouvertures de drainage 156.Starting from the closed state of rest represented on the figure 1 , a user will start by unscrewing the applicator A by grasping the gripping member 3. This has the effect of slightly extracting the sleeve 2 from the annular receiving space E. In doing so, the piston lip 19 slides in the sleeve 2 on a stroke corresponding to the height of the thread between the flange 13 and the ring 32. Once unscrewing, the user will axially pull the applicator A upwards so as to extract the sleeve 2 even more the annular receiving space E. In doing so, the piston lip 19 will slide in leaktight fashion over the entire height of the cylindrical internal wall 2i of the sleeve 2. This sealed sliding has the effect of generating a vacuum inside the sampling chamber C, so that the fluid product from the reservoir R will rise through the dip tube 10 and the tubing 17 into the chamber C. Thus, the fluid product will be gradually deposited inside of the sleeve 2 from the bottom C2 to the mouth C1. When it is a viscous product, such as oil or serum, one can really speak of delicate deposition of the fluid product inside the sleeve. There is no injection phenomenon with the associated turbulence. Advantageously, the piston lip 19 does not reach the entry of the vent passage 23, so that there will be no fluid at the entry of the vent passage 23 We can thus say that the bottom C2 of the chamber C will not not filled with fluid. Once the piston lip 19 has left its tight contact with the cylindrical internal wall 2i, there is no more vacuum in the chamber, and there is no more suction of fluid. The sleeve 2 is then extracted from the mounting part 1 and the user can bring the applicator to this chosen application surface, such as the skin. The user then only has to move the mouthpiece C1 of the sleeve 2 against the skin to deposit the fluid product. When the sampling chamber C is empty, the user will replace the applicator A on the fixed mounting part 1. In doing so, the piston lip 19 again comes into leaktight sliding contact with the internal cylindrical wall 2i . Simultaneously, the outer wall 2e comes into sealed sliding contact with the wiping lip 14. The sampling chamber C is then again formed and closed relative to the outside: it is however filled only with air. The user will push the applicator A into the mounting part 1, which has the effect of moving the piston lip 19 inside the sleeve 2. An overpressure is thus generated inside the sampling chamber C, and the pressurized air is evacuated through the venting passage 23, optionally provided with a non-return valve. It is thus guaranteed that the tubing 19 and the dip tube 10 are not, or practically not, drained of the fluid product which they contain. Thus, during a subsequent withdrawal of the applicator A, the fluid product is already present in the dip tube 10, and possibly in the tubing 17, so that the sampling chamber C will be directly filled with fluid product. When the vent passage 23 is fitted with a non-return valve, it also prevents outside air from entering the interior of the chamber C through the vent passage 23. In the case where the product fluid would have accumulated at the lower end of the sleeve 2, it could regain the reservoir R through the drainage openings 156.

Il est possible de se passer du passage d'éventation 23 : toutefois, dans ce cas, il faudra bien veiller à ce que le volume de la chambre de prélèvement C soit supérieur au volume cumulé de la tubulure 17 et du tube plongeur 10. La lèvre d'essorage 14, ainsi que les passages de drainage 156, sont également optionnels.It is possible to dispense with the venting passage 23: however, in this case, care must be taken to ensure that the volume of the sampling chamber C is greater than the cumulative volume of the tubing 17 and the tube plunger 10. The wiping lip 14, as well as the drainage passages 156, are also optional.

En se référant à la figure 5, il est représenté une première variante pour le passage d'éventation. Le passage d'éventation 23' s'étend directement à travers l'épaisseur de paroi du manchon 2 de manière à faire communiquer directement la chambre de prélèvement C avec la paroi externe 2e, plus particulièrement au niveau de la lèvre d'essorage 14'. A cet effet, cette lèvre 14' peut être réalisée avec deux contacts étanches 141 et 142 entre lesquels débouche le passage d'éventation 123'. Ainsi, à l'état de repos, le passage d'éventation 23' est obturé de manière étanche. Dans ce mode de réalisation, le passage d'éventation 23' est dépourvu de clapet anti-retour. Il présente cependant l'avantage de pouvoir être mis en œuvre très facilement, puisque le passage d'éventation 23' se résume à un simple trou rectiligne.Referring to the figure 5 , there is shown a first variant for the venting passage. The venting passage 23 'extends directly through the wall thickness of the sleeve 2 so as to directly communicate the sampling chamber C with the external wall 2e, more particularly at the level of the wiping lip 14' . For this purpose, this lip 14 'can be produced with two sealed contacts 141 and 142 between which opens the vent passage 123'. Thus, in the rest state, the venting passage 23 ′ is sealed. In this embodiment, the vent passage 23 'is devoid of non-return valve. However, it has the advantage of being able to be implemented very easily, since the venting passage 23 ′ comes down to a simple rectilinear hole.

Sur la figure 6, on voit une seconde variante de réalisation pour le passage d'éventation. Le passage d'éventation 23' se présente sous la forme d'un trou axial rectiligne qui relie le fond C2 de la chambre de prélèvement C à un joint d'étanchéité 37' qui est logé dans un évidement 36' formé par l'organe de préhension 3. Le manchon 2 forme autour de la sortie du passage d'éventation 23' un siège de clapet 24' contre lequel le joint d'étanchéité 37' peut venir en contact étanche de manière sélective. Il est à noter que le joint d'étanchéité 37' sert également à réaliser une étanchéité avec le bord supérieur de la bride 13. On peut ainsi dire que ce joint d'étanchéité 37' remplit une double fonction, à savoir celle d'organe mobile pour former un clapet unidirectionnel avec le siège de clapet 24' et d'étanchéité statique en étant comprimé sur la bride 13.On the figure 6 , we see a second alternative embodiment for the venting passage. The vent passage 23 ′ is in the form of a straight axial hole which connects the bottom C2 of the sampling chamber C to a seal 37 ′ which is housed in a recess 36 ′ formed by the member gripping 3. The sleeve 2 forms around the outlet of the venting passage 23 'a valve seat 24' against which the seal 37 'can come into sealing contact selectively. It should be noted that the seal 37 'is also used to make a seal with the upper edge of the flange 13. It can thus be said that this seal 37' fulfills a double function, namely that of organ movable to form a one-way valve with the valve seat 24 'and static seal by being compressed on the flange 13.

On peut encore imaginer d'autres conceptions pour le passage d'éventation, et notamment en association avec un dispositif applicateur ayant une chambre de prélèvement dont le piston est situé à l'extérieur du manchon. On peut par exemple prévoir de supprimer la lèvre de piston 19, de sorte que la lèvre d'essorage 14, 14' remplirait alors la fonction de lèvre d'aspiration pour la chambre de prélèvement qui s'étendrait à l'extérieur du manchon.One can also imagine other designs for the venting passage, and in particular in association with an applicator device having a sampling chamber whose piston is located outside of the sleeve. One can for example plan to remove the piston lip 19, so that the wiping lip 14, 14 'would then fulfill the lip function suction for the sampling chamber which would extend outside the sleeve.

Grâce à l'invention, on dispose d'un distributeur d'application de produit fluide qui se charge par dépression réalisé par un contact de coulissement étanche avec la paroi interne de la chambre de prélèvement. L'éventation de la chambre permet de garantir un remplissage optimum de l'applicateur.Thanks to the invention, there is a dispenser for applying a fluid product which is charged by vacuum produced by a sealed sliding contact with the internal wall of the sampling chamber. The venting of the chamber ensures optimum filling of the applicator.

Claims (10)

  1. A fluid product (P) application device, comprising:
    - a fixed mounting part (1) intended to be fixed on a reservoir (R) containing fluid product (P), this fixed mounting part (1) comprising a dip tube (10) intended to extend in the reservoir (R),
    - a fluid product applicator (A) removably mounted on the fixed mounting part (1), this fluid product applicator (A) comprising a sleeve (2) internally defining a sampling chamber (C) adapted to sample fluid product (P) sucked through the dip tube (10),
    characterized in that the sleeve (2) comprises an inner cylindrical wall (2i) and the fixed mounting part (1) comprises a nozzle (17) which extends in the extension of the dip tube (10) and which forms a piston lip (19) able to come into sealed sliding contact with the cylindrical inner wall (2i) of the sleeve (2).
  2. The fluid product application device according to claim 1, wherein the sampling chamber (C) comprises a mouth (C1) and a bottom (C2), the nozzle (17) extending into the sampling chamber (C) with the piston lip (19) located closer to the bottom (C2) than the mouth (C1), when the fluid product applicator (A) is mounted on the fixed mounting part (1).
  3. The fluid product application device according to claim 1 or 2, wherein the nozzle (17) forms a press-fit housing (18) for the dip tube (10).
  4. The fluid product application device according to claim 1, 2 or 3, wherein the nozzle (17) is connected to an outer shell (15) so as to extend substantially concentrically inside the outer shell (15), the sleeve (2) extending between the nozzle (17) and the outer shell (16), when the fluid product applicator (A) is mounted on the fixed mounting part (1).
  5. The fluid product application device according to claim 4, wherein the outer shell (15) forms drain openings (156) to discharge into the reservoir (R) the fluid product (P) which would be present between the nozzle (17) and the outer shell (15) .
  6. The fluid product application device according to any one of the preceding claims, wherein the fluid product applicator (A) comprises a vent passage (23; 23'; 23") connecting the sampling chamber (C) to the outside to discharge the air present in the sampling chamber (C), when the fluid product applicator (A) is put back in place on the fixed mounting part (1).
  7. The fluid product application device according to claim 6, wherein the vent passage (23; 23") is provided with a check valve (24, 35; 24", 37") allowing air to be discharged toward the outside and preventing outside air from entering the sampling chamber (C).
  8. The fluid product application device according to claim 7, wherein the fluid product applicator (A) comprises a gripping member (3) to which the sleeve (2) is fixed, the gripping member (3) advantageously forming a housing (34; 36") accommodating a movable vent valve member (35; 37") able to come into sealed abutment on a vent valve seat (24; 24") formed by the sleeve (2) .
  9. The fluid product application device according to any one of the preceding claims, wherein the fixed mounting part (1) comprises a wiping lip (14; 14') that comes into sliding contact with an outer wall (2e) of the sleeve (2).
  10. A fluid product dispenser comprising a fluid product (P) reservoir (1) and a fluid product application device according to any one of the preceding claims mounted on the reservoir (R).
EP17723453.1A 2016-04-27 2017-04-24 Fluid dispenser Active EP3448198B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1653721A FR3050724B1 (en) 2016-04-27 2016-04-27 FLUID PRODUCT DISPENSER.
PCT/FR2017/050952 WO2017187062A1 (en) 2016-04-27 2017-04-24 Fluid product dispenser

Publications (2)

Publication Number Publication Date
EP3448198A1 EP3448198A1 (en) 2019-03-06
EP3448198B1 true EP3448198B1 (en) 2020-01-29

Family

ID=56322145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17723453.1A Active EP3448198B1 (en) 2016-04-27 2017-04-24 Fluid dispenser

Country Status (4)

Country Link
EP (1) EP3448198B1 (en)
ES (1) ES2776876T3 (en)
FR (1) FR3050724B1 (en)
WO (1) WO2017187062A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924696B1 (en) * 2007-12-06 2013-07-26 Valois Sas FLUID PRODUCT DISPENSER
FR2978742B1 (en) * 2011-08-01 2014-11-21 Valois Sas FLUID PRODUCT DISPENSER.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2017187062A1 (en) 2017-11-02
EP3448198A1 (en) 2019-03-06
ES2776876T3 (en) 2020-08-03
FR3050724A1 (en) 2017-11-03
FR3050724B1 (en) 2018-04-27

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