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EP0688516A1 - Applicator device with a perforated piston for a product, particularly a make-up or care product - Google Patents

Applicator device with a perforated piston for a product, particularly a make-up or care product Download PDF

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Publication number
EP0688516A1
EP0688516A1 EP95401023A EP95401023A EP0688516A1 EP 0688516 A1 EP0688516 A1 EP 0688516A1 EP 95401023 A EP95401023 A EP 95401023A EP 95401023 A EP95401023 A EP 95401023A EP 0688516 A1 EP0688516 A1 EP 0688516A1
Authority
EP
European Patent Office
Prior art keywords
product
piston
application element
reservoir
cap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95401023A
Other languages
German (de)
French (fr)
Other versions
EP0688516B1 (en
Inventor
Jean-Louis Gueret
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.)
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0688516A1 publication Critical patent/EP0688516A1/en
Application granted granted Critical
Publication of EP0688516B1 publication Critical patent/EP0688516B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/0017—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs with pre-pressurised reservoirs, e.g. aerosols
    • 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
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • A45D40/262—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like
    • A45D40/265—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like connected to the cap of the container
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/0006—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water specially adapted to feed the bristle upper surface
    • 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
    • A45D2200/054—Means for supplying liquid to the outlet of the container
    • A45D2200/055—Piston or plunger for supplying the liquid to the applicator

Definitions

  • the present invention relates to a device for applying a non-gaseous product and to its use in the cosmetic and / or dermatological fields.
  • This device is more specifically intended for the application of a liquid, pasty, gelled, creamy or powdery product for making up and / or caring for the skin, including the scalp, the eyelashes and the mucous membranes.
  • this product is a lipstick, a blush, a treating cream, a mascara.
  • Conventional devices for applying makeup or care products include, in particular, a body in which is housed a reservoir containing the product, a cap intended to close the body and therefore the reservoir, an applicator holder integral with the cap and which supports an application element (or applicator) capable of removing product.
  • Such a device is particularly described in document FR-A-2 633 167 for the application of a product and in particular of a mascara or eyeshadow. It also includes means for compacting the product and elastic means for returning these compacting means to their rest position, these means being housed in the body of the device. These compacting means have the role of loading the product with the application element or applicator. According to this device, the applicator is completely immersed in the product, which does not then allow a very precise and punctual application of the product to the skin and / or the eyelashes. Furthermore, the seal at the level of the application element is insufficient, in particular when it is a liquid or creamy product.
  • This assembly is also provided with an air evacuation circuit comprising a channel formed in the applicator holder; the role of this circuit is to evacuate the air which enters the reservoir after each introduction of the applicator into the reservoir.
  • this air exhaust circuit causes the evaporation of the product solvents, due to its ventilation. This results in the compaction of a dried product which can no longer be removed, and therefore the premature disposal of the device.
  • This type of application device is not suitable for collecting viscous or powdery products.
  • a device for metering a product in the form of a paste, gel, loose powder or cream which allows a metered amount of product to be withdrawn from the extreme part of the applicator, while avoiding, on the one hand the compaction of the viscous product in the bottom of the tank, caused by the repeated introduction of the application element into the reservoir, and, on the other hand, its drying out due to the evaporation of the solvents, allowing the product to be used until the end, and also avoiding its pollution in mass by the introduction of soiling.
  • the Applicant has surprisingly discovered that the use of a perforated piston in contact with the product subjected to compression by elastic means, allows the removal of a viscous or pulverulent product, in a uniform and precise manner, and prevents compaction of the product in the bottom of the tank, as well as its drying.
  • the invention relates to a device for applying a non-gaseous product which comprises an axis of symmetry, a reservoir containing this product, a cap intended to close the reservoir, an applicator holder secured to the cap. and supporting an application element capable of withdrawing product, a piston placed in the reservoir between the product and the application element, having at least one orifice for the outlet of the product, and an elastic means for ensuring a pressure of the applicator element on the piston in order to make product exit through the orifice and thus withdraw product from the element when the cap is applied to the reservoir, the piston being able to move only in the direction of the axis.
  • the piston bearing on the product present in the tank, is therefore movable longitudinally in the latter.
  • the piston may be semi-deformable and be made of a polymeric material, such as low density polyethylene, high density polyethylene, polypropylene, polyacetal, elastomers, thermoplastic elastomers.
  • a polymeric material such as low density polyethylene, high density polyethylene, polypropylene, polyacetal, elastomers, thermoplastic elastomers.
  • it is pierced with at least one orifice, placed in its center or on the side and in the surface deployed by the application element in compression. This orifice is calibrated according to the nature and consistency of the product to be sampled. It allows the passage of a metered and precise quantity of product.
  • the orifice of the piston has a width or a diameter ranging from 0.2 mm to 20 mm, and preferably ranging from 0.8 mm to 6 mm.
  • the orifice of the piston may consist of a microporous or grid-shaped zone, permeable to the product, this zone possibly consisting of a non-deformable material sintered or spongy with open cells.
  • the piston further comprises at least one lip which bears on the internal wall of the reservoir.
  • the pressure exerted by the end of the application element on the piston results in a deformation of the end of the application element in the orifice of the piston and a thinning of the wall of the piston which is located near the orifice, thus resulting in the sealing of the application device and the withdrawal of a determined quantity of product, while preventing a leak of product.
  • the shape of the piston depends on that of the end of the applicator and vice versa.
  • the piston may preferably have a spherical, oval, flat, pointed, square or triangular shape, depending on whether the applicator has a shape chosen from spherical, oval, flat, pointed, square or triangular shapes.
  • the end of the application element has a convex shape adapted to the shape of the piston.
  • the orifice of the piston is, preferably at its center.
  • the applicator element may preferably include a housing in its lower part, thus making it possible, by an absorption phenomenon, to withdraw a greater quantity of product from the reservoir.
  • this housing it is optionally possible to insert an elastomer foam with open cells, the periphery of the foam serving to seal the device and the center of the foam when loading and dosing the product.
  • the piston further comprises a cavity directed towards the application element, and which makes it possible to store part of the product to be withdrawn.
  • the application element may consist of a block of deformable foam, a block of flocked foam, a thin, flexible rubber, containing a foam or a spring, a soft rubber comprising asperities, d '' a felt pen, a brush with short, hard bristles, a mascara brush.
  • the foam is chosen in particular from polyether foams, polyurethane foams, polyester foams, low density elastomer foams, flocked foams.
  • Low density elastomers are defined by a Shore A hardness ranging from 15 to 90.
  • the foams are preferably chosen from closed cell foams having a pore opening ranging from 0.05 mm to 2 mm and preferably from 0.5 mm to 0.8 mm. They notably have the appearance of a sponge.
  • the applicator element is preferably fixed to the cap by means of a rod, for example hollow, mounted in a rigid sleeve fitted with a transverse cylindrical extension which ensures the retention of the rod, in the cavity of the cap.
  • This rod, this sleeve and this extension are part of the applicator holder.
  • the reservoir capped by the piston can fit into a body.
  • This body comprises, in its upper part directed towards the cap, preferably, a thread or a thread which allows the cap to be closed, respectively, by snap-fastening or by screwing, the part fitted to the cap on the body having a complementary shape of the upper body.
  • the elastic means is supported either on an internal wall of the cap and the applicator holder, or on the bottom of the body and the bottom of the reservoir, or on a inner wall of the cap and on the application element. It can also be arranged in the application element.
  • This elastic means preferably consists of a coil spring, a tab spring, a rubber or any other elastic system, such as a foam.
  • the device according to the invention can find application more specifically in the field of make-up and / or skin care, and can in particular constitute a compact, a make-up tube for lips and / or for eyelids and / or cheeks, a tube of mascara or an applicator tube for skin care.
  • the invention also relates to a device for applying a liquid, pasty, creamy, gelled or pulverulent makeup product, consisting of a device as described above.
  • the subject of the invention is also a use of the device as defined above for applying the product contained in the reservoir to the skin, the eyelashes or the mucous membranes, using the application element.
  • FIGS. 1 and 2 show an application device of the invention, respectively, in the open and closed position, of general reference 1.
  • This device with axial symmetry XX comprises a cap 2 and a hollow body 3, intended to come to be fixed one on the other.
  • an applicator holder 4 In the cavity 10 of the cap 2, of conical shape, is housed an applicator holder 4, rigid, supporting an application element 5 emerging from the cap.
  • the applicator holder 4 comprises a rod 6, pierced with a bore 7 force-fitted into a sleeve 8 transversely comprising a skirt 9 bearing on the internal lateral wall of the cap 2 and thus ensuring the maintenance of the rod 6 in the cavity 10 of the cap 2.
  • the applicator element 5 is fixed to the lower end of the hollow rod 6, opposite the bottom 20 of the cap.
  • the application element is formed from a block of open cell foam having a pore opening of 0.8 mm, this block ending in a sphere 5a.
  • the body 3 contains a reservoir 11 with axial symmetry containing a product 12, for example pasty, to be applied to the mucous membranes or to the skin such as a make-up or a lipstick.
  • the reservoir 11, of length less than that of the body 3, is equipped in its upper part and opposite the flexible application element 5, with a piston 13 movable along the axis XX, flexible, pierced with a orifice 14.
  • the orifice 14 is centered on the piston, and therefore in the axis X-X of the device.
  • the piston 13, M-shaped in the plane of the figure, comprises a flexible lip 15 which is supported on the internal wall 16 of the reservoir 11.
  • the reservoir 11 is mounted on a helical spring 17, itself adapted in the bottom 18 of the body 3. According to the representation of FIG. 2, the spring 17 is compressed between the bottom 11a of the reservoir and the bottom 18 of the body 3.
  • the spring 17 is relaxed.
  • the neck 19 is shown opposite the bottom 18 of the body 3.
  • This neck consists of a cylindrical tubular element whose external diameter is slightly greater than that of the application element, in order to introduce the element 5 in the container 11.
  • This neck 19, as well as the lower internal wall of the cap 2 comprise a thread, allowing the device to be closed by screwing.
  • the cap, body and applicator holder assembly are made of rigid plastic, for example polyethylene.
  • the screwing (or snapping) of the cap 2 on the body 3 causes the pressure of the spherical end 5a of the application element 5 on the orifice 14 of the piston 13, the exit of liquid by pressure, and consequently the loading of product with the application element, by absorption.
  • the closure of the device 1 also causes the compression of the spring 17.
  • the orifice 14 of the piston 13 opens and the free end of the lip 15 of the piston 13 is applied against the internal wall 16 of the reservoir 11, while the fixed end moves away from this wall, thus allowing a given and precise quantity of product to pass in the direction of the application element 5.
  • the application element 5 is then loaded, at its spherical part, with a given quantity of product.
  • the spring 17 decompresses.
  • the piston 13 returns to its rest position and the orifice 14 closes at least in part.
  • the product collected by the applicator can then be applied to the skin or the mucous membranes.
  • FIG 3 there is shown only the body 3 of the device of the invention.
  • the spring 17 is decompressed and causes the reservoir 11 to rise towards the upper part of the body 3, the reservoir bearing on a shoulder 23 of the body supporting the neck 19.
  • the spring 17 bears on the bottom of the cap 2 and on the upper end 6a of the rod 6 of the applicator holder 4.
  • FIG. 5a, 5b and 5c there are shown different shapes of the piston.
  • the piston 13 is provided with an orifice 14 placed in its center ( Figure 5a and 5c) or on the side ( Figure 5b).
  • the piston 13 also has an oval shape.
  • the application element 5 is in direct contact with the assembly of the piston and correctly matches its shape.
  • the bearing surface of the piston 13 on the application element 5 is planar, and is perpendicular to the internal wall 16 of the reservoir 11. It has a central cavity 21, serving to store the product and facing the application element 5.
  • the application element 5 has a depression 22 in its lower part which makes it possible to withdraw a quantity of product by absorption greater than that in the variants of FIGS. 5a and 5b.
  • the pressure of the application element 5 ensures greater spreading of its end on the piston.
  • the variant of the device according to the invention shows a compact containing a powder 12 to be applied to the skin.
  • the foam application element 5 is fixed by gluing to the elastic means, here being in the form of a block of compressible rubber 17a.
  • the elastic means 17a forming an integral part of the applicator element is crushed against the orifice 14 of the piston 13.
  • the rubber 17a can be fixed to the bottom 20 of the cap by gluing.
  • the elastic means 17 which is a helical spring, is housed in the foam and bears on the bottom 20 of the cap and the foam 5.
  • the foam can be glued to the bottom 20 of the cap or s 'hang on a hook-terminated skirt 24 secured to the cap.
  • the devices shown in FIGS. 1 to 7, due to the shape of the application element 5, are more specifically intended for applying a blush or a lipstick.
  • the invention also applies to a mascara tube as shown in FIG. 8.
  • the application element 5 can be a brush.
  • the device of FIG. 8 is distinguished, first of all, from the devices of the other figures, by the fact that it is the body 3 which serves as a reservoir for the product 12.
  • the piston 13 comprises a chimney 13b extending axially, in which the brush 5 is housed.
  • This chimney 13b is provided with one or more longitudinal grooves 14a ending in one or more lateral orifices 14, connecting the body 3 and the chimney 13b.
  • the chimney is closed at its end opposite the bottom 18 of the body 3.
  • the product 12 enters the chimney through the orifice 14 and flows by capillary action along the internal wall 14b of the chimney 13b.
  • the sealing of the application device, in the closed position, is ensured by a very intimate contact between the internal wall 13a and the end 6b of the rod 6 supporting the brush.
  • the end 6b has a conical shape complementary to that of the internal wall 13a of the piston. This prevents the product 12, contained in the chimney 13b from going up by capillarity towards the upper surface 13c of the piston 13, perpendicular to the axis XX, and consequently from flowing into the part of the body 3 situated above the piston .
  • the device of the invention also makes it possible to precisely target the location of the application element which is impregnated with the product.
  • the impregnation of this element can be carried out either on its end ( Figures 1 to 7), or on the entire element ( Figure 8).
  • the application device according to the invention allows precise sampling of products having very different viscosities (wide range of viscosity).
  • the advantage of using such a device lies, in particular, in the fact that the applicator element does not immerse in the entire product in order to take a given quantity of it, and consequently avoids soiling the product with the contribution of dirt.
  • the piston provided with at least one orifice as defined according to the invention allows the application element to be in contact with only the part of product to be withdrawn.
  • This application device with a perforated piston also makes it possible to use all of the product in the reservoir, whatever its viscosity. Indeed, this device avoids product retention, and therefore its drying out, on the internal walls of the tank, and this in particular for viscous products.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Coating Apparatus (AREA)
  • Cosmetics (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention se rapporte à un dispositif d'application d'un produit (12) non gazeux comportant un axe de symétrie (X-X), un réservoir (11) contenant ce produit, un capuchon (2) destiné à fermer le réservoir (11), un porte-applicateur (4) solidaire du capuchon (2) et supportant un élément d'application (5) capable de prélever le produit; Il comprend en plus un piston (13), placé dans le réservoir (11) entre le produit et l'élément d'application (5), ayant au moins un orifice (14) pour la sortie du produit et un moyen élastique (17) pour assurer une pression de l'élément d'application (5) sur le piston afin de faire sortir du produit par l'orifice (14) et prélever ainsi du produit sur l'élément d'application (5) lors de l'application du capuchon (2) sur le réservoir (11), le piston étant apte à se déplacer uniquement dans la direction de l'axe (X).The present invention relates to a device for applying a non-gaseous product (12) comprising an axis of symmetry (XX), a reservoir (11) containing this product, a cap (2) intended to close the reservoir (11 ), an applicator holder (4) integral with the cap (2) and supporting an application element (5) capable of removing the product; It further comprises a piston (13), placed in the reservoir (11) between the product and the application element (5), having at least one orifice (14) for the outlet of the product and an elastic means (17 ) to ensure a pressure of the application element (5) on the piston in order to bring out the product through the orifice (14) and thus withdraw product from the application element (5) during the application of the cap (2) on the reservoir (11), the piston being able to move only in the direction of the axis (X).

Description

La présente invention se rapporte à un dispositif d'application d'un produit non gazeux et à son utilisation dans les domaines cosmétique et/ou dermatologique. Ce dispositif est plus spécialement destiné à l'application d'un produit liquide, pâteux, gélifié, crémeux ou pulvérulent pour le maquillage et/ou le soin de la peau, y compris le cuir chevelu, les cils et les muqueuses.The present invention relates to a device for applying a non-gaseous product and to its use in the cosmetic and / or dermatological fields. This device is more specifically intended for the application of a liquid, pasty, gelled, creamy or powdery product for making up and / or caring for the skin, including the scalp, the eyelashes and the mucous membranes.

Plus précisément, ce produit est un rouge à lèvres, un fard à joues (blush), une crème traitante, un mascara.More specifically, this product is a lipstick, a blush, a treating cream, a mascara.

Les dispositifs classiques d'application de produit de maquillage ou de soin comportent, notamment, un corps dans lequel est logé un réservoir contenant le produit, un capuchon destiné à fermer le corps et donc le réservoir, un porte-applicateur solidaire du capuchon et qui supporte un élément d'application (ou applicateur) capable de prélever du produit.Conventional devices for applying makeup or care products include, in particular, a body in which is housed a reservoir containing the product, a cap intended to close the body and therefore the reservoir, an applicator holder integral with the cap and which supports an application element (or applicator) capable of removing product.

Un tel dispositif est particulièrement décrit dans le document FR-A-2 633 167 pour l'application d'un produit et notamment d'un mascara ou fard à paupières. Il comporte, également, des moyens de compactage du produit et des moyens élastiques de rappel de ces moyens de compactage vers leur position de repos, ces moyens étant logés dans le corps du dispositif. Ces moyens de compactage ont pour rôle de charger en produit l'élément d'application ou applicateur. Selon ce dispositif, l'applicateur baigne en totalité dans le produit, ce qui ne permet pas de réaliser ensuite une application très précise et ponctuelle du produit sur la peau et/ou les cils. Par ailleurs, I'étanchéité au niveau de l'élément d'application est insuffisante, notamment lorsqu'il s'agit d'un produit liquide ou crémeux.Such a device is particularly described in document FR-A-2 633 167 for the application of a product and in particular of a mascara or eyeshadow. It also includes means for compacting the product and elastic means for returning these compacting means to their rest position, these means being housed in the body of the device. These compacting means have the role of loading the product with the application element or applicator. According to this device, the applicator is completely immersed in the product, which does not then allow a very precise and punctual application of the product to the skin and / or the eyelashes. Furthermore, the seal at the level of the application element is insufficient, in particular when it is a liquid or creamy product.

Cet ensemble est également muni d'un circuit d'évacuation d'air comportant un canal pratiqué dans le porte-applicateur; ce circuit a pour rôle d'évacuer l'air qui pénètre dans le réservoir après chaque introduction de l'applicateur dans le réservoir. Malheureusement, ce circuit d'évacuation d'air provoque l'évaporation des solvants du produit, du fait de sa ventilation. Il s'ensuit un compactage d'un produit desséché qui ne peut plus être prélevé, et donc la mise à la poubelle prématurée du dispositif.This assembly is also provided with an air evacuation circuit comprising a channel formed in the applicator holder; the role of this circuit is to evacuate the air which enters the reservoir after each introduction of the applicator into the reservoir. Unfortunately, this air exhaust circuit causes the evaporation of the product solvents, due to its ventilation. This results in the compaction of a dried product which can no longer be removed, and therefore the premature disposal of the device.

Par ailleurs, on connaît, par le document FR-A-2 701 818, des dispositifs d'application de produit liquide sur la peau dont la partie supérieure du réservoir est munie d'un embout à orifice capillaire, par lequel passe le produit liquide. Dans ce dispositif, I'élément d'application du produit, qui est déformable, permet d'épouser la forme de l'orifice capillaire avec lequel il entre en contact lorsque le dispositif est fermé, afin de prélever, par capillarité, une quantité donnée de produit liquide.Furthermore, from document FR-A-2 701 818, devices are known for applying liquid product to the skin, the upper part of the reservoir of which is provided with a nozzle with a capillary orifice, through which the liquid product passes. . In this device, the element for applying the product, which is deformable, allows it to conform to the shape of the capillary orifice with which it comes into contact when the device is closed, in order to take, by capillarity, a given quantity of liquid product.

Ce type de dispositif d'application n'est pas adapté au prélèvement de produit visqueux ou pulvérulent.This type of application device is not suitable for collecting viscous or powdery products.

Aussi, il subsiste le besoin d'un dispositif d'application doseur d'un produit sous forme de pâte, de gel, de poudre libre ou de crème, qui permet de prélever une quantité dosée de produit, sur la partie extrême de l'applicateur, tout en évitant, d'une part le tassement du produit visqueux dans le fond du réservoir, provoqué par les introductions répétées de l'élément d'application dans le réservoir, et, d'autre part, son dessèchement par suite de l'évaporation des solvants, permettant l'utilisation du produit jusqu'au bout, et évitant également sa pollution dans la masse par l'introduction de salissures.Also, there remains the need for a device for metering a product in the form of a paste, gel, loose powder or cream, which allows a metered amount of product to be withdrawn from the extreme part of the applicator, while avoiding, on the one hand the compaction of the viscous product in the bottom of the tank, caused by the repeated introduction of the application element into the reservoir, and, on the other hand, its drying out due to the evaporation of the solvents, allowing the product to be used until the end, and also avoiding its pollution in mass by the introduction of soiling.

La demanderesse a découvert de façon surprenante, que l'utilisation d'un piston perforé au contact du produit assujetti en compression par un moyen élastique, permettait le prélèvement d'un produit visqueux ou pulvérulent, de façon uniforme et précise, et empêchait le compactage du produit dans le fond du réservoir, ainsi que son dessèchement.The Applicant has surprisingly discovered that the use of a perforated piston in contact with the product subjected to compression by elastic means, allows the removal of a viscous or pulverulent product, in a uniform and precise manner, and prevents compaction of the product in the bottom of the tank, as well as its drying.

De façon plus précise, l'invention a pour objet un dispositif d'application d'un produit non gazeux qui comporte un axe de symétrie, un réservoir contenant ce produit, un capuchon destiné à fermer le réservoir, un porte-applicateur solidaire du capuchon et supportant un élément d'application capable de prélever du produit, un piston placé dans le réservoir entre le produit et l'élément d'application, ayant au moins un orifice pour la sortie du produit, et un moyen élastique pour assurer une pression de l'élément d'application sur le piston afin de faire sortir du produit par l'orifice et prélever ainsi du produit sur l'élément lors de l'application du capuchon sur le réservoir, le piston étant apte à se déplacer uniquement dans la direction de l'axe.More specifically, the invention relates to a device for applying a non-gaseous product which comprises an axis of symmetry, a reservoir containing this product, a cap intended to close the reservoir, an applicator holder secured to the cap. and supporting an application element capable of withdrawing product, a piston placed in the reservoir between the product and the application element, having at least one orifice for the outlet of the product, and an elastic means for ensuring a pressure of the applicator element on the piston in order to make product exit through the orifice and thus withdraw product from the element when the cap is applied to the reservoir, the piston being able to move only in the direction of the axis.

Selon l'invention, le piston, en appui sur le produit présent dans le réservoir, est donc mobile longitudinalement dans celui-ci. Plus le réservoir est plein, plus le piston se trouve en position élevée dans le réservoir.According to the invention, the piston, bearing on the product present in the tank, is therefore movable longitudinally in the latter. The fuller the tank, the higher the piston is in the tank.

Le piston peut être semi-déformable et être constitué en une matière polymérique, telle que le polyéthylène basse densité, le polyéthylène haute densité, le polypropylène, le polyacétal, les élastomères, les élastomères thermoplastiques. Avantageusement, il est percé d'au moins un orifice, placé en son centre ou sur le côté et dans la surface déployée par l'élément d'application en compression. Cet orifice est calibré selon la nature et la consistance du produit à prélever. Il permet le passage d'une quantité dosée et précise de produit.The piston may be semi-deformable and be made of a polymeric material, such as low density polyethylene, high density polyethylene, polypropylene, polyacetal, elastomers, thermoplastic elastomers. Advantageously, it is pierced with at least one orifice, placed in its center or on the side and in the surface deployed by the application element in compression. This orifice is calibrated according to the nature and consistency of the product to be sampled. It allows the passage of a metered and precise quantity of product.

En particulier, l'orifice du piston a une largeur ou un diamètre allant de 0,2 mm à 20 mm, et de préférence allant de 0,8 mm à 6 mm.In particular, the orifice of the piston has a width or a diameter ranging from 0.2 mm to 20 mm, and preferably ranging from 0.8 mm to 6 mm.

En variante, notamment lorsqu'on souhaite appliquer un produit liquide, pâteux ou crémeux, l'orifice du piston peut être constitué par une zone microporeuse ou en forme de grille, perméable au produit, cette zone pouvant être constituée d'un matériau non déformable fritté ou spongieux à cellules ouvertes.As a variant, in particular when it is desired to apply a liquid, pasty or creamy product, the orifice of the piston may consist of a microporous or grid-shaped zone, permeable to the product, this zone possibly consisting of a non-deformable material sintered or spongy with open cells.

De préférence, le piston comprend, en outre, au moins une lèvre qui prend appui sur la paroi interne du réservoir. Lorsque le dispositif d'application est fermé, la pression exercée par l'extrémité de l'élément d'application sur le piston entraîne une déformation de l'extrémité de l'élément d'application dans l'orifice du piston et un amincissement de la paroi du piston qui se trouve à proximité de l'orifice, aboutissant ainsi à l'étanchéité du dispositif d'application et au prélèvement d'une quantité déterminée de produit, tout en interdisant une fuite de produit.Preferably, the piston further comprises at least one lip which bears on the internal wall of the reservoir. When the application device is closed, the pressure exerted by the end of the application element on the piston results in a deformation of the end of the application element in the orifice of the piston and a thinning of the wall of the piston which is located near the orifice, thus resulting in the sealing of the application device and the withdrawal of a determined quantity of product, while preventing a leak of product.

La forme du piston est fonction de celle de l'extrémité de l'applicateur et, inversement. Ainsi le piston peut avoir, de préférence, une forme sphérique, ovale, plane, pointue, carrée ou triangulaire, selon que l'applicateur a une forme choisie parmi les formes sphérique, ovale, plane, pointue, carrée ou triangulaire. Ainsi lorsque le piston a une forme sphérique ou ovale, I'extrémité de l'élément d'application a une forme convexe adaptée à la forme du piston.The shape of the piston depends on that of the end of the applicator and vice versa. Thus, the piston may preferably have a spherical, oval, flat, pointed, square or triangular shape, depending on whether the applicator has a shape chosen from spherical, oval, flat, pointed, square or triangular shapes. Thus when the piston has a spherical or oval shape, the end of the application element has a convex shape adapted to the shape of the piston.

Lorsque le piston a une forme plane, c'est-à-dire que la surface plane du piston en contact de l'élément d'application, est disposée perpendiculairement à la paroi interne du réservoir, l'orifice du piston se trouve, de préférence, en son centre. Dans ce cas, I'élément d'application peut comprendre, de préférence, un logement dans sa partie inférieure permettant ainsi, par un phénomène d'absorption, de prélever une quantité de produit du réservoir plus importante. Dans ce logement, on peut éventuellement insérer une mousse en élastomère à cellules ouvertes, la périphérie de la mousse servant à l'étanchéité du dispositif et le centre de la mousse à la charge et au dosage du produit. Avantageusement, le piston comprend, de plus, une cavité dirigée vers l'élément d'application, et qui permet d'emmagasiner une partie du produit à prélever.When the piston has a planar shape, that is to say that the planar surface of the piston in contact with the application element, is arranged perpendicular to the internal wall of the reservoir, the orifice of the piston is, preferably at its center. In this case, the applicator element may preferably include a housing in its lower part, thus making it possible, by an absorption phenomenon, to withdraw a greater quantity of product from the reservoir. In this housing, it is optionally possible to insert an elastomer foam with open cells, the periphery of the foam serving to seal the device and the center of the foam when loading and dosing the product. Advantageously, the piston further comprises a cavity directed towards the application element, and which makes it possible to store part of the product to be withdrawn.

L'élément d'application peut être constitué d'un bloc de mousse déformable, d'un bloc de mousse floquée, d'un caoutchouc fin, souple, contenant une mousse ou un ressort, d'un caoutchouc mou comportant des aspérités, d'un feutre, d'un pinceau à poils courts et durs, d'une brosse à mascara.The application element may consist of a block of deformable foam, a block of flocked foam, a thin, flexible rubber, containing a foam or a spring, a soft rubber comprising asperities, d '' a felt pen, a brush with short, hard bristles, a mascara brush.

La mousse est choisie en particulier parmi les mousses de polyéthers, les mousses de polyuréthannes, les mousses de polyesters, les mousses d'élastomères basse densité, les mousses floquées.The foam is chosen in particular from polyether foams, polyurethane foams, polyester foams, low density elastomer foams, flocked foams.

Les élastomères basse densité sont définis par une dureté Shore A allant de 15 à 90.Low density elastomers are defined by a Shore A hardness ranging from 15 to 90.

Les mousses sont choisies, de préférence, parmi les mousses à cellules fermées ayant une ouverture de pore allant de 0,05 mm à 2 mm et de préférence de 0,5 mm à 0,8 mm. Elles ont notamment l'aspect d'une éponge.The foams are preferably chosen from closed cell foams having a pore opening ranging from 0.05 mm to 2 mm and preferably from 0.5 mm to 0.8 mm. They notably have the appearance of a sponge.

L'élément d'application est de préférence fixé au capuchon au moyen d'une tige par exemple creuse, montée dans un manchon rigide équipé d'une extension cylindrique transversale qui assure le maintien de la tige, dans la cavité du capuchon. Cette tige, ce manchon et cette extension font partie du porte-applicateur.The applicator element is preferably fixed to the cap by means of a rod, for example hollow, mounted in a rigid sleeve fitted with a transverse cylindrical extension which ensures the retention of the rod, in the cavity of the cap. This rod, this sleeve and this extension are part of the applicator holder.

Le réservoir coiffé par le piston peut s'emboîter dans un corps. Ce corps comprend, dans sa partie supérieure dirigée vers le capuchon, de préférence, un filetage ou un pas de vis qui permet de fermer le capuchon, respectivement, par claquage ou par vissage, la partie emmanchée du capuchon sur le corps ayant une forme complémentaire de la partie supérieure du corps.The reservoir capped by the piston can fit into a body. This body comprises, in its upper part directed towards the cap, preferably, a thread or a thread which allows the cap to be closed, respectively, by snap-fastening or by screwing, the part fitted to the cap on the body having a complementary shape of the upper body.

Le moyen élastique prend appui soit, sur une paroi interne du capuchon et le porte-applicateur, soit sur le fond du corps et le fond du réservoir, soit sur une paroi interne du capuchon et sur l'élément d'application. Il peut aussi se trouver disposé dans l'élément d'application. Ce moyen élastique est constitué, de préférence, par un ressort à boudin, un ressort à pattes, un caoutchouc ou par tout autre système élastique, tel qu'une mousse.The elastic means is supported either on an internal wall of the cap and the applicator holder, or on the bottom of the body and the bottom of the reservoir, or on a inner wall of the cap and on the application element. It can also be arranged in the application element. This elastic means preferably consists of a coil spring, a tab spring, a rubber or any other elastic system, such as a foam.

On peut aussi envisager un mécanisme à vis avec débrayage dynamométrique, c'est-à-dire qu'au delà d'une certaine pression exercée sur l'applicateur, le mécanisme se débraye, de façon comparable à un palmer.We can also consider a screw mechanism with a dynamometric clutch, that is to say that beyond a certain pressure exerted on the applicator, the mechanism disengages, in a manner comparable to a palm.

Le dispositif, selon l'invention, peut trouver application plus spécialement dans le domaine du maquillage et/ou du soin de la peau, et peut notamment constituer un poudrier, un tube de maquillage pour lèvres et/ou pour paupières et/ou joues, un tube de mascara ou un tube applicateur pour le soin de la peau.The device according to the invention can find application more specifically in the field of make-up and / or skin care, and can in particular constitute a compact, a make-up tube for lips and / or for eyelids and / or cheeks, a tube of mascara or an applicator tube for skin care.

Aussi, l'invention a encore pour objet un dispositif d'application d'un produit de maquillage liquide, pâteux, crémeux, gélifié ou pulvérulent, consistant en un dispositif tel que décrit précédemment.Also, the invention also relates to a device for applying a liquid, pasty, creamy, gelled or pulverulent makeup product, consisting of a device as described above.

L'invention a aussi pour objet une utilisation du dispositif tel que défini précédemment pour appliquer sur la peau, les cils ou les muqueuses le produit contenu dans le réservoir, à l'aide de l'élément d'application.The subject of the invention is also a use of the device as defined above for applying the product contained in the reservoir to the skin, the eyelashes or the mucous membranes, using the application element.

L'invention va maintenant être décrite de façon plus détaillée et non limitative à l'aide des dessins annexés et dans lesquels :

  • la figure 1 représente, schématiquement, une vue générale en perspective d'un dispositif d'application selon l'invention ;
  • la figure 2 représente une vue en coupe du dispositif de la figure 1 ;
  • la figure 3 montre, en coupe, une position particulière du réservoir dans le corps de l'applicateur de la figure 1 ;
  • la figure 4 est analogue à la figure 2, mais le moyen élastique prend appui sur le capuchon et le porte-applicateur ;
  • les figures 5a, 5b, 5c représentent chacune, en coupe, un mode de réalisation différent du piston et de l'élément d'application du dispositif selon l'invention ;
  • les figures 6a et 6b représentent une variante de réalisation du dispositif d'application selon l'invention ;
  • la figure 7 montre une autre variante de réalisation du dispositif d'application selon l'invention ;
  • la figure 8 représente une variante de réalisation du piston selon l'invention.
The invention will now be described in more detail and without limitation with the aid of the accompanying drawings, in which:
  • Figure 1 shows, schematically, a general perspective view of an application device according to the invention;
  • 2 shows a sectional view of the device of Figure 1;
  • Figure 3 shows, in section, a particular position of the reservoir in the body of the applicator of Figure 1;
  • Figure 4 is similar to Figure 2, but the elastic means bears on the cap and the applicator holder;
  • Figures 5a, 5b, 5c each show, in section, a different embodiment of the piston and the application element of the device according to the invention;
  • Figures 6a and 6b show an alternative embodiment of the application device according to the invention;
  • Figure 7 shows another alternative embodiment of the application device according to the invention;
  • FIG. 8 represents an alternative embodiment of the piston according to the invention.

Sur les figures 1 et 2, on a représenté un dispositif d'application de l'invention, respectivement, en position ouverte et fermée, de référence générale 1. Ce dispositif à symétrie axiale X-X comprend un capuchon 2 et un corps creux 3, destinés à venir se fixer l'un sur l'autre. Dans la cavité 10 du capuchon 2, de forme conique, est logé un porte-applicateur 4, rigide, supportant un élément d'application 5 émergeant du capuchon.FIGS. 1 and 2 show an application device of the invention, respectively, in the open and closed position, of general reference 1. This device with axial symmetry XX comprises a cap 2 and a hollow body 3, intended to come to be fixed one on the other. In the cavity 10 of the cap 2, of conical shape, is housed an applicator holder 4, rigid, supporting an application element 5 emerging from the cap.

Le porte-applicateur 4 comprend une tige 6, percée d'un alésage 7 emmanché à force dans un manchon 8 comportant transversalement une jupe 9 prenant appui sur la paroi latéral interne du capuchon 2 et assurant ainsi le maintien de la tige 6 dans la cavité 10 du capuchon 2.The applicator holder 4 comprises a rod 6, pierced with a bore 7 force-fitted into a sleeve 8 transversely comprising a skirt 9 bearing on the internal lateral wall of the cap 2 and thus ensuring the maintenance of the rod 6 in the cavity 10 of the cap 2.

L'élément d'application 5 est fixé à l'extrémité inférieure de la tige creuse 6, opposée au fond 20 du capuchon. L'élément d'application est formé d'un bloc de mousse à cellules ouvertes ayant une ouverture de pores de 0,8 mm, ce bloc se terminant par une sphère 5a.The applicator element 5 is fixed to the lower end of the hollow rod 6, opposite the bottom 20 of the cap. The application element is formed from a block of open cell foam having a pore opening of 0.8 mm, this block ending in a sphere 5a.

Le corps 3 renferme un réservoir 11 à symétrie axiale contenant un produit 12, par exemple pâteux, à appliquer sur les muqueuses ou sur la peau comme un fard ou un rouge à lèvres. Le réservoir 11, de longueur inférieure à celle du corps 3, est équipé dans sa partie supérieure et en regard de l'élément d'application 5 flexible, d'un piston 13 mobile suivant l'axe X-X, flexible, percé d'un orifice 14.The body 3 contains a reservoir 11 with axial symmetry containing a product 12, for example pasty, to be applied to the mucous membranes or to the skin such as a make-up or a lipstick. The reservoir 11, of length less than that of the body 3, is equipped in its upper part and opposite the flexible application element 5, with a piston 13 movable along the axis XX, flexible, pierced with a orifice 14.

L'orifice 14 est centré sur le piston, et donc dans l'axe X-X du dispositif. Le piston 13, en forme de M dans le plan de la figure, comprend une lèvre 15 flexible qui prend appui sur la paroi interne 16 du réservoir 11. Le réservoir 11 est monté sur un ressort hélicoïdal 17, lui-même adapté dans le fond 18 du corps 3. Selon la représentation de la figure 2, le ressort 17 est comprimé entre le fond 11a du réservoir et le fond 18 du corps 3.The orifice 14 is centered on the piston, and therefore in the axis X-X of the device. The piston 13, M-shaped in the plane of the figure, comprises a flexible lip 15 which is supported on the internal wall 16 of the reservoir 11. The reservoir 11 is mounted on a helical spring 17, itself adapted in the bottom 18 of the body 3. According to the representation of FIG. 2, the spring 17 is compressed between the bottom 11a of the reservoir and the bottom 18 of the body 3.

Selon la représentation ouverte de la figure 1, le ressort 17 est détendu. Sur cette figure, on a représenté le goulot 19 opposé au fond 18 du corps 3. Ce goulot est constitué d'un élément tubulaire cylindrique dont le diamètre externe est légèrement supérieure à celui de l'élément d'application, afin d'introduire l'élément 5 dans le récipient 11. Ce goulot 19, ainsi que la paroi interne inférieure du capuchon 2 comprennent un pas de vis, permettant la fermeture du dispositif par vissage. L'ensemble capuchon, corps et porte-applicateur sont réalisés en matière plastique rigide, par exemple en polyéthylène.According to the open representation of Figure 1, the spring 17 is relaxed. In this figure, the neck 19 is shown opposite the bottom 18 of the body 3. This neck consists of a cylindrical tubular element whose external diameter is slightly greater than that of the application element, in order to introduce the element 5 in the container 11. This neck 19, as well as the lower internal wall of the cap 2 comprise a thread, allowing the device to be closed by screwing. The cap, body and applicator holder assembly are made of rigid plastic, for example polyethylene.

Le vissage (ou claquage) du capuchon 2 sur le corps 3 entraîne la pression de l'extrémité sphérique 5a de l'élément d'application 5 sur l'orifice 14 du piston 13, la sortie de liquide par pression, et par conséquent le chargement en produit de l'élément d'application, par absorption. La fermeture du dispositif 1 entraîne également la compression du ressort 17. Sous la pression de l'élément d'application 5 et sous l'influence du ressort 17 comprimé, l'orifice 14 du piston 13 s'ouvre et l'extrémité libre de le lèvre 15 du piston 13 s'applique contre la paroi interne 16 du réservoir 11, alors que l'extrémité fixe s'écarte de cette paroi, laissant ainsi passer une quantité donnée et précise de produit en direction de l'élément d'application 5. L'élément d'application 5 se charge alors, à sa partie sphérique, d'une quantité donnée de produit.The screwing (or snapping) of the cap 2 on the body 3 causes the pressure of the spherical end 5a of the application element 5 on the orifice 14 of the piston 13, the exit of liquid by pressure, and consequently the loading of product with the application element, by absorption. The closure of the device 1 also causes the compression of the spring 17. Under the pressure of the application element 5 and under the influence of the compressed spring 17, the orifice 14 of the piston 13 opens and the free end of the lip 15 of the piston 13 is applied against the internal wall 16 of the reservoir 11, while the fixed end moves away from this wall, thus allowing a given and precise quantity of product to pass in the direction of the application element 5. The application element 5 is then loaded, at its spherical part, with a given quantity of product.

A l'ouverture du dispositif, le ressort 17 se décomprime. Le piston 13 reprend sa position de repos et, l'orifice 14 se ferme au moins en partie. Le produit prélevé par l'applicateur peut être ensuite appliqué sur la peau ou sur les muqueuses.When the device opens, the spring 17 decompresses. The piston 13 returns to its rest position and the orifice 14 closes at least in part. The product collected by the applicator can then be applied to the skin or the mucous membranes.

Sur la figure 3, on a représenté uniquement le corps 3 du dispositif de l'invention. Sur cette figure, le ressort 17 est décomprimé et entraîne l'ascension du réservoir 11 vers la partie supérieure du corps 3, le réservoir prenant appui sur un épaulement 23 du corps supportant le goulot 19.In Figure 3, there is shown only the body 3 of the device of the invention. In this figure, the spring 17 is decompressed and causes the reservoir 11 to rise towards the upper part of the body 3, the reservoir bearing on a shoulder 23 of the body supporting the neck 19.

Selon la variante de la figure 4, le ressort 17 prend appui sur le fond du capuchon 2 et sur l'extrémité supérieure 6a de la tige 6 du porte-applicateur 4.According to the variant of FIG. 4, the spring 17 bears on the bottom of the cap 2 and on the upper end 6a of the rod 6 of the applicator holder 4.

Selon les variantes des figures 5a, 5b et 5c, on a représenté différentes formes du piston. Le piston 13 est muni d'un orifice 14 placé en son centre (figure 5a et 5c) ou sur le côté (figure 5b).According to the variants of Figures 5a, 5b and 5c, there are shown different shapes of the piston. The piston 13 is provided with an orifice 14 placed in its center (Figure 5a and 5c) or on the side (Figure 5b).

Selon les figures 5a et 5b, le piston 13 a en outre une forme ovale. L'élément d'application 5 est en contact direct avec l'ensemble du piston et épouse correctement sa forme.According to Figures 5a and 5b, the piston 13 also has an oval shape. The application element 5 is in direct contact with the assembly of the piston and correctly matches its shape.

Selon la variante de la figure 5c, la surface d'appui du piston 13 sur l'élément d'application 5 est plane, et est perpendiculaire à la paroi interne 16 du réservoir 11. Elle comporte une cavité 21 centrale, servant de stockage du produit et faisant face à l'élément d'application 5. En outre, I'élément d'application 5 possède une dépression 22 dans sa partie inférieure qui permet de prélever une quantité de produit par absorption supérieure à celle dans les variantes des figures 5a et 5b. La pression de l'élément d'application 5 assure un étalement plus important de son extrémité sur le piston.According to the variant of FIG. 5c, the bearing surface of the piston 13 on the application element 5 is planar, and is perpendicular to the internal wall 16 of the reservoir 11. It has a central cavity 21, serving to store the product and facing the application element 5. In addition, the application element 5 has a depression 22 in its lower part which makes it possible to withdraw a quantity of product by absorption greater than that in the variants of FIGS. 5a and 5b. The pressure of the application element 5 ensures greater spreading of its end on the piston.

La variante du dispositif, selon l'invention, représenté sur les figures 6a et 6b, montre un poudrier contenant une poudre 12 à appliquer sur la peau. L'élément d'application 5 en mousse est fixé par collage sur le moyen élastique, se présentant ici sous la forme d'un bloc de caoutchouc compressible 17a. Lorsque le dispositif est fermé, le moyen élastique 17a faisant partie intégrante de l'élément d'application s'écrase contre l'orifice 14 du piston 13. Le caoutchouc 17a peut être fixé sur le fond 20 du capuchon par collage.The variant of the device according to the invention, shown in Figures 6a and 6b, shows a compact containing a powder 12 to be applied to the skin. The foam application element 5 is fixed by gluing to the elastic means, here being in the form of a block of compressible rubber 17a. When the device is closed, the elastic means 17a forming an integral part of the applicator element is crushed against the orifice 14 of the piston 13. The rubber 17a can be fixed to the bottom 20 of the cap by gluing.

Selon la variante de la figure 7, le moyen élastique 17 qui est un ressort hélicoïdal, est logé dans la mousse et prend appui sur le fond 20 du capuchon et la mousse 5. La mousse peut être collée sur le fond 20 du capuchon ou s'accrocher sur une jupe à terminaison crochue 24 solidaire du capuchon.According to the variant of Figure 7, the elastic means 17 which is a helical spring, is housed in the foam and bears on the bottom 20 of the cap and the foam 5. The foam can be glued to the bottom 20 of the cap or s 'hang on a hook-terminated skirt 24 secured to the cap.

Les dispositifs représentés sur les figures 1 à 7, de part la forme de l'élément d'application 5, sont plus spécialement destinés à appliquer un fard à joues ou un rouge à lèvres.The devices shown in FIGS. 1 to 7, due to the shape of the application element 5, are more specifically intended for applying a blush or a lipstick.

Cependant, l'invention s'applique aussi à un tube de mascara tel que représenté sur la figure 8. Dans ce cas, l'élément d'application 5 peut être une brosse.However, the invention also applies to a mascara tube as shown in FIG. 8. In this case, the application element 5 can be a brush.

Le dispositif de la figure 8 se distingue, tout d'abord, des dispositifs des autres figures, par le fait que c'est le corps 3 qui sert de réservoir au produit 12.The device of FIG. 8 is distinguished, first of all, from the devices of the other figures, by the fact that it is the body 3 which serves as a reservoir for the product 12.

Selon la figure 8, le piston 13 comporte une cheminée 1 3b s'étendant axialement, est dans laquelle est logée la brosse 5. Cette cheminée 13b est pourvue d'une ou plusieurs rainures 14a longitudinales se terminant par un ou plusieurs orifices latéraux 14, mettant en communication le corps 3 et la cheminée 13b. La cheminée est fermée à son extrémité en regard du fond 18 du corps 3.According to FIG. 8, the piston 13 comprises a chimney 13b extending axially, in which the brush 5 is housed. This chimney 13b is provided with one or more longitudinal grooves 14a ending in one or more lateral orifices 14, connecting the body 3 and the chimney 13b. The chimney is closed at its end opposite the bottom 18 of the body 3.

A la fermeture du dispositif, la brosse 5 entre en contact avec le piston 13, et y exerce une pression. Sous cette pression, la paroi interne 13a du piston 13 en forme d'entonnoir s'amincit par déformation élastique.When the device is closed, the brush 5 comes into contact with the piston 13, and exerts pressure there. Under this pressure, the internal wall 13a of the funnel-shaped piston 13 thins out by elastic deformation.

Sous l'effet de cette pression, le produit 12 entre dans la cheminée par l'orifice 14 et s'écoule par capillarité le long de la paroi interne 14b de la cheminée 13b.Under the effect of this pressure, the product 12 enters the chimney through the orifice 14 and flows by capillary action along the internal wall 14b of the chimney 13b.

L'étanchéité du dispositif d'application, en position fermée, est assurée par un contact très intime entre la paroi interne 13a et l'extrémité 6b de la tige 6 supportant la brosse. A cet effet, I'extrémité 6b présente une forme conique complémentaire de celle de la paroi interne 13a du piston. Ceci évite au produit 12, contenu dans la cheminée 13b de remonter par capillarité vers la surface supérieure 13c du piston 13, perpendiculaire à l'axe X-X, et par conséquent de s'écouler dans la partie du corps 3 située au-dessus du piston.The sealing of the application device, in the closed position, is ensured by a very intimate contact between the internal wall 13a and the end 6b of the rod 6 supporting the brush. To this end, the end 6b has a conical shape complementary to that of the internal wall 13a of the piston. This prevents the product 12, contained in the chimney 13b from going up by capillarity towards the upper surface 13c of the piston 13, perpendicular to the axis XX, and consequently from flowing into the part of the body 3 situated above the piston .

En plus des avantages donnés ci-dessus, le dispositif de l'invention permet, en outre, de cibler précisément l'endroit de l'élément d'application qui est imprégné par le produit. L'imprégnation de cet élément peut être réalisée soit sur son extrémité (figures 1 à 7), soit sur la totalité de l'élément (figure 8).In addition to the advantages given above, the device of the invention also makes it possible to precisely target the location of the application element which is impregnated with the product. The impregnation of this element can be carried out either on its end (Figures 1 to 7), or on the entire element (Figure 8).

Par ailleurs, le dispositif d'application, selon l'invention, permet le prélèvement précis de produits ayant des viscosités très différentes (large gamme de viscosité).Furthermore, the application device according to the invention allows precise sampling of products having very different viscosities (wide range of viscosity).

De plus, I'intérêt d'utiliser un tel dispositif réside, notamment, dans le fait que l'élément d'application ne plonge pas dans la totalité du produit pour en prélever une quantité donnée, et par conséquent évite de souiller le produit par l'apport de salissures. En effet, le piston muni d'au moins un orifice tel que défini selon l'invention, permet à l'élément d'application d'être en contact avec uniquement la partie de produit à prélever.In addition, the advantage of using such a device lies, in particular, in the fact that the applicator element does not immerse in the entire product in order to take a given quantity of it, and consequently avoids soiling the product with the contribution of dirt. Indeed, the piston provided with at least one orifice as defined according to the invention, allows the application element to be in contact with only the part of product to be withdrawn.

Ce dispositif d'application à piston perforé permet, de plus, d'utiliser la totalité du produit dans le réservoir, quelque soit sa viscosité. En effet, ce dispositif évite une rétention de produit, et donc son desséchement, sur les parois internes du réservoir, et ce notamment pour des produits visqueux.This application device with a perforated piston also makes it possible to use all of the product in the reservoir, whatever its viscosity. Indeed, this device avoids product retention, and therefore its drying out, on the internal walls of the tank, and this in particular for viscous products.

La présente invention ne se limite pas aux modes de réalisation décrits qui sont donnés uniquement à titre illustratif.The present invention is not limited to the embodiments described which are given only by way of illustration.

Claims (16)

Dispositif d'application d'un produit (12) non gazeux comportant un axe de symétrie (X-X), un réservoir (11 ; 3) contenant ce produit, un capuchon (2) destiné à fermer le réservoir (11 ; 3), un porte-applicateur (4) solidaire du capuchon (2) et supportant un élément d'application (5) capable de prélever le produit, caractérisé en ce qu'il comprend en plus un piston (13), placé dans le réservoir (11 ; 3) entre le produit et l'élément d'application (5), ayant au moins un orifice (14) pour la sortie du produit et un moyen élastique (17) pour assurer une pression de l'élément d'application (5) sur le piston afin de faire sortir du produit par l'orifice (14) et prélever ainsi du produit sur l'élément d'application (5) lors de l'application du capuchon (2) sur le réservoir (11 ; 3), le piston étant apte à se déplacer uniquement dans la direction de l'axe (X-X).Device for applying a non-gaseous product (12) comprising an axis of symmetry (XX), a reservoir (11; 3) containing this product, a cap (2) intended to close the reservoir (11; 3), a applicator holder (4) integral with the cap (2) and supporting an application element (5) capable of withdrawing the product, characterized in that it further comprises a piston (13), placed in the reservoir (11; 3) between the product and the application element (5), having at least one orifice (14) for the outlet of the product and an elastic means (17) for ensuring a pressure of the application element (5) on the piston in order to remove product from the orifice (14) and thus withdraw product from the application element (5) when applying the cap (2) to the reservoir (11; 3), the piston being able to move only in the direction of the axis (XX). Dispositif selon la revendication 1, caractérisé en ce que l'élément d'application (5) combiné au piston (13) sert, en outre, d'élément d'étanchéité.Device according to claim 1, characterized in that the application element (5) combined with the piston (13) also serves as a sealing element. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce qu'il comprend, en outre, un corps (3) apte à s'accrocher au capuchon (2), ledit corps logeant le réservoir (11).Device according to one of claims 1 or 2, characterized in that it further comprises a body (3) adapted to hang on the cap (2), said body housing the reservoir (11). Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'orifice (14) du piston comporte une zone microporeuse ou une grille.Device according to one of claims 1 to 3, characterized in that the orifice (14) of the piston comprises a microporous zone or a grid. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le moyen élastique (5) est agencé de façon à prendre appui : a) sur une paroi interne du capuchon (2) et le porte applicateur (4), ou b) sur un fond du corps (3) et un fond (18) du réservoir (11), ou c) sur une paroi interne du capuchon (2) et sur l'élément d'application (5). Device according to one of claims 1 to 4, characterized in that the elastic means (5) is arranged so as to bear: a) on an internal wall of the cap (2) and the applicator holder (4), or b) on a bottom of the body (3) and a bottom (18) of the tank (11), or c) on an internal wall of the cap (2) and on the application element (5). Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'orifice (14) est disposé au centre ou sur un côté du piston.Device according to any one of Claims 1 to 5, characterized in that the orifice (14) is arranged in the center or on one side of the piston. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'orifice (14) du piston (13) a une largeur allant de 0,2 mm à 20 mm.Device according to any one of Claims 1 to 6, characterized in that the orifice (14) of the piston (13) has a width ranging from 0.2 mm to 20 mm. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le piston (13) comprend une cavité (21), dirigée vers l'élément d'application (5) afin d'emmagasiner une partie de produit (12) à prélever.Device according to any one of Claims 1 to 7, characterized in that the piston (13) comprises a cavity (21), directed towards the application element (5) in order to store part of the product (12) to collect. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que le piston (13) comporte au moins une lèvre (15) prenant appui sur une paroi interne du réservoir (11).Device according to one of claims 1 to 8, characterized in that the piston (13) comprises at least one lip (15) bearing on an internal wall of the reservoir (11). Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'élément d'application (5) a une forme adaptée à celle de la cavité (21).Device according to any one of Claims 1 to 9, characterized in that the application element (5) has a shape adapted to that of the cavity (21). Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que l'élément d'application (5) a une extrémité dont la forme est choisie parmi les formes ronde, ovale, plate et pointue, carré, triangulaire.Device according to one of claims 1 to 10, characterized in that the application element (5) has one end, the shape of which is chosen from among the round, oval, flat and pointed, square, triangular shapes. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que l'élément d'application (5) est formé d'un matériau choisi parmi un bloc de mousse déformable, un bloc de mousse floquée, un caoutchouc fin, souple contenant une mousse ou un ressort, un caoutchouc mou comportant des aspérités, un feutre, un pinceau à poils courts et durs, une brosse à mascara.Device according to one of claims 1 to 11, characterized in that the application element (5) is formed from a material chosen from a block of deformable foam, a block of flocked foam, a thin, flexible rubber containing a foam or a spring, a soft rubber comprising asperities, a felt, a brush with short and hard bristles, a mascara brush. Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le porte-applicateur (4) comprend un manchon de maintien rigide.Device according to any one of Claims 1 to 12, characterized in that the applicator holder (4) comprises a rigid retaining sleeve. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le produit est sous forme de poudre, de pâte, de crème, de gel.Device according to one of the preceding claims, characterized in that the product is in the form of powder, paste, cream, gel. Dispositif d'application d'un produit de maquillage liquide, pâteux, crémeux, gélifié ou pulvérulent, caractérisé en ce qu'il consiste en un dispositif selon l'une des revendications 1 à 14.Device for applying a liquid, pasty, creamy, gelled or powdery makeup product, characterized in that it consists of a device according to one of claims 1 to 14. Utilisation du dispositif selon l'une des revendications 1 à 15, pour appliquer sur la peau, les cils ou les muqueuses le produit contenu dans le réservoir à l'aide de l'élément d'application.Use of the device according to one of claims 1 to 15, for applying the product contained in the reservoir to the skin, the eyelashes or the mucous membranes using the application element.
EP95401023A 1994-05-24 1995-05-03 Applicator device with a perforated piston for a product, particularly a make-up or care product Expired - Lifetime EP0688516B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406275 1994-05-24
FR9406275A FR2720238B1 (en) 1994-05-24 1994-05-24 Device for applying a perforated piston to a product, in particular makeup and / or care.

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EP0688516A1 true EP0688516A1 (en) 1995-12-27
EP0688516B1 EP0688516B1 (en) 1999-01-27

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US (1) US5636931A (en)
EP (1) EP0688516B1 (en)
JP (1) JP2738516B2 (en)
DE (1) DE69507543T2 (en)
ES (1) ES2129773T3 (en)
FR (1) FR2720238B1 (en)

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Also Published As

Publication number Publication date
US5636931A (en) 1997-06-10
DE69507543D1 (en) 1999-03-11
FR2720238A1 (en) 1995-12-01
JPH07313247A (en) 1995-12-05
FR2720238B1 (en) 1996-08-30
DE69507543T2 (en) 1999-06-02
JP2738516B2 (en) 1998-04-08
EP0688516B1 (en) 1999-01-27
ES2129773T3 (en) 1999-06-16

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