EP0715821A2 - Liquid or pasty product dispenser with an applicator head - Google Patents

Liquid or pasty product dispenser with an applicator head Download PDF

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Publication number
EP0715821A2
EP0715821A2 EP95402560A EP95402560A EP0715821A2 EP 0715821 A2 EP0715821 A2 EP 0715821A2 EP 95402560 A EP95402560 A EP 95402560A EP 95402560 A EP95402560 A EP 95402560A EP 0715821 A2 EP0715821 A2 EP 0715821A2
Authority
EP
European Patent Office
Prior art keywords
assembly according
product
piston
application
reservoir
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
EP95402560A
Other languages
German (de)
French (fr)
Other versions
EP0715821B1 (en
EP0715821A3 (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
Priority claimed from FR9414653A external-priority patent/FR2727609B1/en
Priority claimed from FR9414652A external-priority patent/FR2727608B1/en
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0715821A2 publication Critical patent/EP0715821A2/en
Publication of EP0715821A3 publication Critical patent/EP0715821A3/en
Application granted granted Critical
Publication of EP0715821B1 publication Critical patent/EP0715821B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • A45D34/042—Appliances specially adapted for applying liquid, e.g. using roller or ball using a brush or the like
    • 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
    • A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
    • A45D40/04—Casings wherein movement of the lipstick or like solid is a sliding movement effected by a screw
    • 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
    • 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
    • A45D2200/10—Details of applicators
    • A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
    • A45D2200/1018—Applicators comprising a pad, tissue, sponge, or the like comprising a pad, i.e. a cushion-like mass of soft material, with or without gripping means

Definitions

  • the present invention relates to a dispensing assembly for applying a liquid to pasty consistency product on a support, provided with an application nozzle.
  • This dispensing assembly is in particular intended for the application of a cosmetic product to the skin or the mucous membranes, but it is also usable for dispensing a viscous product in other technical fields, for example an adhesive. More particularly, the invention relates to the distribution and application of a composition of red or lip balm of creamy consistency or of a skin treatment cream.
  • a make-up set for the lips comprises a product in the shape of a grape or stick of substantially solid consistency, a mobile support, called a cup, receiving the product to be applied, an envelope and a mechanism making it possible to house the grape during the period of storage, and take it out of its envelope for the application of the product on the lips.
  • Document FR-A-1 323 631 discloses a cream dispenser for skin care comprising a cylindrical body, a cylindrical piston provided with radial lugs arranged in this body, an operating ring mounted to rotate freely at the lower part of the body, an external cylindrical protective envelope provided with a dispensing orifice, an intermediate cylindrical envelope provided with helical grooves, this intermediate envelope being integral with the external envelope, an internal cylindrical envelope integral with the operating ring and provided with axial slots, this internal envelope being mounted to rotate freely in the intermediate envelope.
  • the piston is slidably mounted so that the pins pass through the slots to cooperate with the helical grooves of the intermediate envelope.
  • This prior dispenser has the drawback of being limited to products with a very viscous consistency, since a product with a liquid consistency would escape through the slots, rendering the manipulation of the mechanism unusable, due to the fouling of the helical grooves.
  • an applicator for an elongated cosmetic product having a dispensing orifice cut at an angle.
  • This applicator is designed for the application of a solid, extruded product such as a conventional lipstick stick, and cannot be used for dispensing a liquid product.
  • the distribution of the product is controlled by a mechanism that can be operated by one hand of the user.
  • the orientation of the oblique orifice changes, so that makeup of the lips is not possible without turning the applicator in the hand to have a correct orientation, using, for example, example, on the other hand.
  • Document US-A-2 374 065 describes an application nozzle having an application surface comprising a plurality of orifices, this nozzle being made of rigid plastic.
  • the application of the product on the lips therefore lacks comfort.
  • the makeup obtained is not homogeneous and has streaks.
  • product distribution cannot be controlled by one hand.
  • the product is packaged so as to be in contact with the drive system, leading to fouling of the latter, which can render the applicator unusable.
  • the Applicant has sought to avoid the above drawbacks by creating a dispensing assembly for the application of liquid to pasty products whose viscosity is within a wide range; the whole thus allows the use of new raw materials, while ensuring a precise and aesthetic make-up. Furthermore, it sought to produce a distribution assembly of simple construction, not fouling under the effect of the liquid product to be distributed, easy to mold and to package and which is therefore of an advantageous cost price.
  • the dispensing assembly proposed by the applicant is, moreover, practical to use, being able to be manipulated with one hand.
  • a distribution assembly provided with a nozzle for applying a given conformation, made of a flexible elastomeric material.
  • the Applicant has found that by choosing such a tip, one could obtain a deep and shiny lip makeup.
  • this endpiece with cavities or spreading grooves, it was possible to obtain makeup more quickly and more uniformly than with an application brush.
  • these grooves or cavities formed in the application surface of the nozzle allow the applicator to absorb any excess product deposited on the lips.
  • the distribution of the product is carried out by a mechanism, actuable by one hand, the actuation of which does not change the orientation of the application nozzle.
  • the invention relates to a set for dispensing and applying a product of liquid to pasty consistency, comprising a tubular reservoir for containing the product to be dispensed communicating with at least one dispensing orifice, this reservoir, on the side opposite to the orifice comprising at least one longitudinal slot; a piston capable of sliding in translation inside the reservoir comprising means for driving in translation passing through the slot and ensuring the distribution of the product; a base connected to the tank; means for driving the piston in translation, the reservoir and the base being produced in one piece and the slot being produced in only part of the reservoir.
  • this assembly further comprises an application nozzle secured to the reservoir equipped with said dispensing orifice.
  • product of liquid to pasty consistency means any composition capable of flowing under the action of a distribution means exerting a push on this product, capable of causing the expulsion of the product through the dispensing orifice.
  • This product advantageously has a viscosity in the range from 0.6 Pa ⁇ s to 17 Pa ⁇ s.
  • the drive means consist of an operating ring surrounding at least part of the tank and mounted fixed in translation and free to rotate around this tank, this ring being provided internally with a helical drive element, and by a complementary drive element integral with the piston passing through the slot and able to slide in translation inside the slot, these helical drive and complementary drive means being arranged so that a rotation of the ring handling causes a translation of the piston to ensure the distribution of a dose of product.
  • means for holding the piston in the reservoir can be provided to prevent the complementary drive means for the piston from coming out of the slot, in which it is arranged.
  • the base has an open end, the holding means advantageously being constituted by a plug provided for closing this end, the plug being able to support a skirt, one free end of which is intended to come to bear against the means of stop.
  • the drive element is constituted by an internal thread of the ring, and the complementary drive element is then constituted by an external thread carried by the piston, this external thread being complementary to the internal thread of the ring .
  • the ring advantageously comprises a cylindrical skirt provided internally with a groove or an annular rib, capable of cooperating with a complementary rib or groove, carried by the base.
  • this ring is fixed in translation and free in rotation.
  • the drive element can be constituted by at least one helical groove formed in the internal wall of the operating ring and the complementary drive element is then constituted by at least one stud carried by the piston, the stud passing through the slot and being capable of sliding in the helical groove.
  • the piston has a cylindrical skirt provided with a circular wall in contact with the product, the translational drive means, on the side opposite to the product, being arranged so that when these drive means are located at the lower end of the slot, the circular wall of the piston is located above the upper end of the slot.
  • the application nozzle can comprise an application surface provided with at least one dispensing orifice, the application surface of the nozzle comprising at least one cavity or at least one groove, the orifice being located in this cavity or in this groove.
  • this endpiece is shaped substantially in the shape of a warhead provided with a flat application surface, slightly concave or slightly convex, located obliquely on the side of the warhead, equipped with at least one dispensing orifice.
  • the cavity or the groove is extended, parallel to the application surface which may be flat, concave or convex, by passages so as to create spreading channels for the product when it is applied to the support.
  • the term "parallel" is understood to mean passages dug in the application surface at a substantially constant depth.
  • the application surface can be constituted by a grid.
  • This application surface may advantageously include two series of woven threads, the threads of one series being crossed with those of another series, in particular in two orthogonal directions.
  • the application surface thus comprises a multitude of dispensing orifices. When a multitude of such orifices is produced, their section can be variable and of different shape.
  • the application surface may comprise a multitude of pins, separated by a multitude of cavities communicating with each other, at least part of the cavities being provided, in their bottom, with at least one dispensing orifice intended to communicate with a reservoir containing the product to be dispensed.
  • the application tip may be provided with an application surface intended to come into contact with the lips, comprising roughness regularly distributed over all or part of the surface thereof.
  • the channels arranged in the application surface can be straight or curvilinear and in particular form closed curves.
  • the end piece can be made, advantageously, from a flexible material, for example from an elastomeric material chosen from the group of elastomers of polyethylene, polyurethane, polyester; polyether block amides; polyvinyls; ter-polymers of ethylene, propylene and a diene (EPDM); block styrene-butadiene polymers (SEBS-SIS), silicones, nitrile rubbers, latexes, etc.
  • a flexible material for example from an elastomeric material chosen from the group of elastomers of polyethylene, polyurethane, polyester; polyether block amides; polyvinyls; ter-polymers of ethylene, propylene and a diene (EPDM); block styrene-butadiene polymers (SEBS-SIS), silicones, nitrile rubbers, latexes, etc.
  • SEBS-SIS block styrene-butadiene polymers
  • silicones
  • This dispenser may include a removable protective cover.
  • the application tip advantageously comprises an annular sealing bead, on which is placed, with friction, the protective cover.
  • the application nozzle is shaped substantially in the shape of a warhead provided with a flat or slightly convex application surface, located obliquely on the side of the warhead, fitted with at least one dispensing orifice, so as to imitate the shape of conventional lipsticks, with solid grapes, before any application.
  • the advantage of a non-deformable semi-rigid tip compared to a deformable grape is to keep its shape until the tube of lipstick or lip balm is exhausted and therefore ensure precise and homogeneous makeup until the end.
  • this application nozzle comprises a closure system opening under the thrust of the product and preventing ambient air from entering the reservoir, when there is no dispensing, stopping the flow of the product instantly after distribution.
  • This dispensing assembly of the invention gives the application a great softness comfort and has good properties of spreading and smoothing the product on the lips, while being capable of absorbing the possible surplus of product. It can be handled with one hand. The makeup obtained is precise and shiny.
  • Figure 1 is an exploded perspective view of a dispensing assembly, according to the invention, for dispensing a product of liquid to pasty consistency.
  • Figure 2 is an axial section of the distribution assembly of Figure 1 before the first distribution.
  • FIG. 3 is an enlarged view of the reservoir of the assembly of FIG. 1.
  • Figure 4 is an axial section of the distribution assembly of Figure 1 at the end of distribution.
  • FIG. 5 is an axial section of a variant of a valve application nozzle which can be fitted to the distribution assembly of FIG. 1.
  • FIG. 6 is an axial section of another variant of a valve application nozzle which can be fitted to the distribution assembly of FIG. 1.
  • Figure 7 is a longitudinal sectional view of another variant of the application nozzle comprising a unidirectional distribution valve.
  • Figure 8 is a longitudinal sectional view of a variant of the nozzle of Figure 7, comprising another type of unidirectional distribution valve.
  • FIGS. 9 to 16 show, in perspective, different alternative embodiments of the dispensing nozzle which can be fitted to the dispenser of FIG. 1.
  • a dispensing and application assembly 1 of a product P of liquid to pasty consistency comprising a tubular reservoir 2 containing the product to be dispensed.
  • This product is, in particular a lipstick having a viscosity ranging from 0.6 Pa ⁇ s to 17 Pa ⁇ s, and preferably from 2 Pa ⁇ s to 10 Pa ⁇ s.
  • the reservoir 2 has two parts, an upper part 2a containing the product P, and a lower part 2b in which is mounted, by sliding, a cylindrical piston 4.
  • This piston has a circular wall 41, in contact with product P.
  • the free end of part 2a of the reservoir has a reduction zone 31 in the form of a truncated cone, extending into a cylindrical neck 32.
  • This neck 32 is capped by an application nozzle 6 , substantially in the form of a warhead having a flat or slightly curved application surface 63, located at an angle on the side of the warhead.
  • At least one orifice 61 is provided in the application surface 63, located at the bottom of a groove 75 and in communication with the neck 32 of the reservoir 2.
  • the surface 63 has asperities 64, facilitating the spreading of the product P.
  • the application tip 6 is made of a flexible elastomeric material.
  • the part 2b comprises at least one longitudinal slot 21, revealing at least one lug 43 integral with the piston 4 and extending radially from the latter.
  • the part 2b is connected by an annular stop 22 to a cylindrical portion 23, the internal section of which is slightly greater than the external section of the reservoir 2.
  • the slot 21 extends, downward, over the entire length of the cylindrical portion 23.
  • a parallelepiped base 27 is connected to the cylindrical portion 23, by a cylindrical portion 25 whose internal section is substantially equal to the external section of this cylindrical portion 23, thus forming an annular stop 24.
  • the parts 22 to 27 constitute the base 9 of the distribution assembly.
  • the base is connected to the reservoir and has inside at least one section of larger area than that of the reservoir so as to form stop means and to allow the passage of the complementary drive means 43 of the piston 4 in the slot 21, this zone extending to the slot, that is to say this arrangement allows the introduction of the piston into the reservoir.
  • the free end of the base 27 has an opening 28, through which the piston 4 can be introduced into the reservoir 2.
  • the opening 28 is closed by a plug 7, comprising a bottom 71 (of any shape ) provided with a central skirt 72, the free end 73 of which extends to the level of the annular stop 22, and bears against the piston 4 in the low position, preventing the latter from leaving the reservoir 2.
  • the piston 4 in the tank 2 ensures a perfect seal between the upper 2a and lower 2b parts of the tank 2, allowing the product P to be stored away from ambient air.
  • the piston 4 can be provided with an O-ring, capable of sliding in the upper part 2a of the tank 2, which is advantageous for the distribution of liquids of low viscosity, or volatile products.
  • the product P during its packaging or distribution, cannot escape from the reservoir; this avoids clogging the distribution mechanism of this assembly.
  • the circular wall 41 of the piston 4 carries a cylindrical cap 49, capable of filling the internal volume of the neck 32 at the end of the stroke.
  • An operating ring 5 of cylindrical shape, having an axial length slightly greater than that of the part 2b of the reservoir 2, is mounted to rotate freely on this part 2b.
  • a latching bead 29 formed on the cylindrical portion 23 cooperates with an annular internal groove 52 of the ring 5 ensuring that it is held in place.
  • An internal part of the ring 5, facing the slot 21 includes a thread 51, able to cooperate with a complementary thread 43a formed on the free end of the lug 43.
  • a protective cover 8 is provided, intended to come into abutment against a recess 26 formed between the base 27 and the cylindrical portion 25.
  • the section of this protective cover 8 can be circular or of the same shape as the section of the base 27.
  • the cover 8 carries a cylindrical internal skirt 81, the free end 81a of which is applied in leaktight manner against an annular bead 65 secured to the application nozzle 6.
  • the cover 8 also comprises a stud 82, located at the inside of the skirt 81, intended to close the dispensing orifice 61, or to condemn a dispensing valve (61, 66; see FIGS. 6 and 7).
  • the component parts of the distribution assembly are easy to mold. To assemble them, we first introduce the piston 4 into the opening 28 of the base 27, by sliding the lugs 43 of the piston into the slots 21. The plug 7 is forced into the opening 28, the skirt 72 preventing thus the piston 4 comes out of the tank 2. Then, the locking ring 5 is engaged from above on the annular stop 22. By rotating the ring one or two turns, the thread 43a of the pins is engaged 43 in the internal thread 51 of the operating ring. The product P is then introduced, possibly hot, through the neck 32, into the reservoir 2. Thereafter, the application nozzle 6 and the protective cover 8 are put in place. The dispensing assembly is ready to work.
  • the filling of the reservoir 2 is carried out through the opening 28:
  • the reservoir 2 - piston 4 - application nozzle 6 assembly is turned over.
  • the product P is poured hot through an orifice (not shown) formed in the circular wall 41 of the piston. This orifice is closed, after filling, with a seal.
  • the user grasps the dispensing assembly with one hand, tighten the operating ring between the thumb and forefinger, the other fingers tightening the base 9.
  • the ring 5 By rotating the ring 5, a dose of product is accumulated around the dispensing orifice 61.
  • the application surface 63 By applying the application surface 63 to the lips, the user spreads the product easily and precisely; the makeup obtained is aesthetic, uniform and shiny.
  • FIG. 5 represents, in longitudinal section, a flexible application nozzle 6a, the application surface 63 of which has a cutout so as to form a unidirectional valve 61, in support, in the rest position of the dispensing assembly, against a rigid insert 62a, and moving away under the thrust of the product during dispensing (position 62b).
  • FIG. 6 represents, in longitudinal section, a flexible application end piece 6b, the application surface 63 of which is convex and has a plurality of orifices 61.
  • the application surface 6b also comprises a spike obturation, in the form of a truncated cone, obturating, in the rest position, the neck 3 of the reservoir, lifting under the thrust of the product P and stopping the distribution instantaneously, when the distribution ceases.
  • FIG. 7 represents an application nozzle 6c provided with a unidirectional distribution valve 63b, 44 and comprising a concave application surface 63 provided with four distribution orifices 61.
  • This nozzle 6c comprises a rigid or semi-rigid insert 40 provided with a passage 43 for the product, this insert being in intimate contact with the internal wall of the application surface 63.
  • This insert 40 has an annular groove 45 connecting the dispensing orifices 61.
  • a tube 44 separates the annular groove 45 of the passage 43.
  • the insert 40 further comprises a peripheral recess 42 cooperating with an internal bead 41 of the application nozzle 6c. In the rest position, the passage 43 is closed by a needle central 63b secured to a portion 63a of the application surface.
  • this portion 63a is capable of lifting under the thrust of the product, and of closing the passage 43, instantaneously and in a sealed manner, when the dispensing ceases, to prevent ambient air to come into contact with the product.
  • product P is protected against soiling and oxidation.
  • the end piece 6c also serves as a protective cover.
  • FIG. 8 represents an application nozzle 6d made of polyethylene elastomer and comprising a variant of distribution valve 64, 65, 72 unidirectional.
  • a nozzle 60 of generally cylindrical shape comprising a circular plate 62 provided with a central orifice 61.
  • this plate 62 comprises a cylindrical sealing skirt 60a which is forced into the neck 32.
  • the plate 62 On the side opposite the neck 32, the plate 62 has a central dome 64 located in the extension of the orifice 61 and forming a blind hole.
  • the dome 64 comprises one or more radial orifices 65.
  • the plate 62 is provided, in addition with a cylindrical skirt 66 whose free end is cut in slope.
  • This skirt 66 comprises an annular bead 33 capable of cooperating with an additional annular groove 68 which is provided with the internal cylindrical wall 70 of the application nozzle 6d.
  • This nozzle 6d has a slightly convex application surface 63 on which there are dispensing orifices 61 arranged in a circle.
  • the application surface 63 comprises, on the side facing the plate 62 a sealing skirt 73 which is applied in a sealed manner in the skirt 66 carried by the plate 62.
  • a central glove finger 71 secured of the application surface 63 extends in the direction of the plate 62 so as to completely surround the dome 64.
  • This thermowell 71 comprises an elastic cylindrical skirt 72 covering the orifices 65, capable of moving away from these orifices under product pushing and return to the closed position instantly, when dispensing stops.
  • FIGS. 9 to 16 represent several embodiments of the application nozzle, according to the invention, in which the same constituent elements or the elements playing a similar role, bear the reference numbers of FIG. 1.
  • FIG. 9 represents an application nozzle 6e comprising an application surface provided with a groove 15 of oval shape and an elongated cavity 16, disposed along the major axis of the oval groove, defining an oval section 17.
  • the surface 63 may comprise at least one zone provided with asperities, so as to obtain a granite surface, facilitating the spreading of the product.
  • the area provided with asperities can be, for example, the oval section 17 of FIG. 9.
  • FIG. 10 shows, in perspective, the application nozzle 6c of FIG. 7, having a concave application surface 63 provided with four dispensing orifices 61.
  • FIG. 11 shows, in perspective, an application nozzle 6f, the application surface 63 of which comprises a grid 10, the interstices of which, in square shape, form cavities or grooves 75 at the bottom of which the dispensing orifices are formed 61 bringing the product P.
  • Figure 12 shows a variant 6g of the tip of Figure 11, in which the cavities 75 are of the same nature as those of the tip 6f of Figure 2, but arranged differently.
  • FIG. 13 shows a tip 6h whose application surface 63 comprises two series of parallel bars, the bars 81 of a first series forming a substantially right angle with those 82 of a second series and are located at a different level. These bars thus define an application grid.
  • these bars can be arranged in a fabric (alternating overlapping of two series of bars 81, 82).
  • FIG. 14 shows a nozzle 6i comprising an application surface 63 provided with a central dispensing orifice 61 surrounded by a multitude of pins 11.
  • cavities 75 communicating with each other, are formed between the pins 11 of shape cylindrical.
  • the inter-pin spaces define channels.
  • FIG. 15 shows an application nozzle 6j, the application surface 63 of which has pins 12 of square section, arranged alternately with cavities 75 of square section, at the bottom of which are dispensing orifices 61.
  • a passage exists between a cavity and the neighboring cavities, along the diagonal of the sections of the cavities 75, defining channels for the product.
  • the application nozzle 6k comprises an application surface 5 formed by two concentric rings 14a, 14b, at the bottom of which are arranged radial bars 75a, 75b, the interstices between these bars constituting orifices distribution 61 of the product.

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Abstract

The applicator, e.g. for a lip balm or other cosmetic skin product, consists of a tubular reservoir (2) for the product, communicating with an outlet (61), and having a lengthwise slit (21) and a piston (4) at the opposite end to the outlet, and a base (9) with a drive for the piston. The reservoir and base are made in one piece, with the slit covering only part of the reservoir's length, while the upper end of the reservoir is equipped with an applicator tip (6) contg. the outlet (61). The piston drive comprises a ring (5) surrounding the reservoir and having an inner spiral drive surface which engages with a projection (43) on the piston through the slit. The applicator tip is made from an elastomer material selected from polyethylene, polyurethane, polyester, polyether block amides, polyvinyls, ethylene ter-polymers, propylene and diene, styrene butadiene polymers, silicones, nitrile rubbers and latex.

Description

La présente invention se rapporte à un ensemble de distribution pour l'application d'un produit de consistance liquide à pâteuse sur un support, muni d'un embout d'application. Cet ensemble de distribution est notamment destiné à l'application d'un produit cosmétique sur la peau ou les muqueuses, mais il est également utilisable pour distribuer un produit visqueux dans d'autres domaines techniques, par exemple une colle. Plus particulièrement, l'invention vise la distribution et l'application d'une composition de rouge ou baume à lèvres de consistance crémeuse ou d'une crème de traitement cutané.The present invention relates to a dispensing assembly for applying a liquid to pasty consistency product on a support, provided with an application nozzle. This dispensing assembly is in particular intended for the application of a cosmetic product to the skin or the mucous membranes, but it is also usable for dispensing a viscous product in other technical fields, for example an adhesive. More particularly, the invention relates to the distribution and application of a composition of red or lip balm of creamy consistency or of a skin treatment cream.

Généralement, un ensemble de maquillage pour les lèvres comporte un produit en forme de raisin ou bâton de consistance sensiblement solide, un support mobile, appelé cupule, recevant le produit à appliquer, une enveloppe et un mécanisme permettant de loger le raisin pendant la période de stockage, et de le sortir de son enveloppe en vue de l'application du produit sur les lèvres.Generally, a make-up set for the lips comprises a product in the shape of a grape or stick of substantially solid consistency, a mobile support, called a cup, receiving the product to be applied, an envelope and a mechanism making it possible to house the grape during the period of storage, and take it out of its envelope for the application of the product on the lips.

La structure de ce mécanisme classique est cependant souvent assez complexe, nécessitant un outillage de montage spécialisé. En outre, la fabrication d'un raisin à lèvres nécessite successivement des étapes de moulage à chaud du raisin, de démoulage sous vide, de flammage de la surface du raisin et sa fixation dans une cupule. De plus, le montage de la cupule munie du raisin est délicat du fait de la fragilité de ce dernier. Du fait de cet outillage spécialisé et de ces différentes étapes de fabrication, le prix de revient d'un tel produit à lèvres est élevé. Par ailleurs, un ensemble de rouge à lèvres classique de ce type supporte difficilement des chocs, par exemple, lors du transport dans un sac à main, notamment à des températures élevées.The structure of this classic mechanism is however often quite complex, requiring specialized mounting tools. In addition, the production of a lip grape successively requires stages of hot molding of the grape, demoulding under vacuum, flame treatment of the surface of the grape and its fixing in a cup. In addition, the assembly of the cup provided with the grape is delicate because of the fragility of the latter. Due to this specialized tool and these different manufacturing steps, the cost price of such a lip product is high. Furthermore, a set of conventional lipsticks of this type hardly withstand shocks, for example, during transport in a handbag, in particular at high temperatures.

Pour éviter ces inconvénients, la demanderesse a cherché à mettre en oeuvre un ensemble de distribution pour l'application de produits de consistance liquide à pâteuse. Ce type de produit permet d'utiliser des colorants et/ou des excipients actuellement non envisageables.To avoid these drawbacks, the applicant has sought to implement a distribution assembly for the application of products of liquid to pasty consistency. This type of product makes it possible to use dyes and / or excipients currently not possible.

Par le document FR-A-1 323 631, on connaît un distributeur de crème pour les soins de la peau comportant un corps cylindrique, un piston cylindrique muni d'ergots radiaux disposés dans ce corps, une bague de manoeuvre montée libre en rotation à la partie inférieure du corps, une enveloppe cylindrique externe de protection munie d'un orifice de distribution, une enveloppe cylindrique intermédiaire munie de gorges hélicoïdales, cette enveloppe intermédiaire étant solidaire de l'enveloppe externe, une enveloppe cylindrique interne solidaire de la bague de manoeuvre et munie de fentes axiales, cette enveloppe interne étant montée libre en rotation dans l'enveloppe intermédiaire. Dans l'enveloppe interne qui contient le produit à distribuer, est monté coulissant le piston de sorte que les ergots traversent les fentes pour coopérer avec les gorges hélicoïdales de l'enveloppe intermédiaire. En tournant la bague de manoeuvre, on fait monter le piston par mise en rotation de l'enveloppe intermédiaire, ce qui provoque la distribution du produit.Document FR-A-1 323 631 discloses a cream dispenser for skin care comprising a cylindrical body, a cylindrical piston provided with radial lugs arranged in this body, an operating ring mounted to rotate freely at the lower part of the body, an external cylindrical protective envelope provided with a dispensing orifice, an intermediate cylindrical envelope provided with helical grooves, this intermediate envelope being integral with the external envelope, an internal cylindrical envelope integral with the operating ring and provided with axial slots, this internal envelope being mounted to rotate freely in the intermediate envelope. In the internal envelope which contains the product to be dispensed, the piston is slidably mounted so that the pins pass through the slots to cooperate with the helical grooves of the intermediate envelope. By turning the operating ring, the piston is raised by rotating the intermediate casing, which causes the distribution of the product.

Ce distributeur antérieur présente l'inconvénient d'une utilisation limitée à des produits de consistance très visqueux, car un produit de consistance liquide s'échapperait par les fentes, rendant inutilisable la manipulation du mécanisme, du fait de l'encrassement des gorges hélicoïdales.This prior dispenser has the drawback of being limited to products with a very viscous consistency, since a product with a liquid consistency would escape through the slots, rendering the manipulation of the mechanism unusable, due to the fouling of the helical grooves.

On connaît, par ailleurs, par le document US-A-4 323 157, un applicateur de produit cosmétique de forme allongée ayant un orifice de distribution coupé en biais. Cet applicateur est conçu pour l'application d'un produit solide, extrudé tel qu'un bâton de rouge à lèvres classique, et n'est pas utilisable pour la distribution d'un produit liquide. La distribution du produit est commandée par un mécanisme actionnable par une seule main de l'utilisateur. Cependant, lors de cet actionnement, l'orientation de l'orifice en biais change, de sorte qu'un maquillage des lèvres n'est pas possible sans tourner l'applicateur dans la main pour avoir une orientation correcte, en se servant, par exemple, de l'autre main.Furthermore, from document US-A-4 323 157, an applicator for an elongated cosmetic product is known having a dispensing orifice cut at an angle. This applicator is designed for the application of a solid, extruded product such as a conventional lipstick stick, and cannot be used for dispensing a liquid product. The distribution of the product is controlled by a mechanism that can be operated by one hand of the user. However, during this actuation, the orientation of the oblique orifice changes, so that makeup of the lips is not possible without turning the applicator in the hand to have a correct orientation, using, for example, example, on the other hand.

On connaît également, par le document US-A-2 442 503, un applicateur de rouge à lèvres liquide muni d'un embout souple. Le mécanisme de distribution de cet applicateur ne permet pas la distribution du produit, de façon aisée, par actionnement avec une seule main.Also known from document US-A-2 442 503 is a liquid lipstick applicator provided with a flexible tip. The dispensing mechanism of this applicator does not allow the product to be dispensed easily by actuation with one hand.

Le document US-A-2 374 065 décrit un embout d'application ayant une surface d'application comportant une pluralité d'orifices, cet embout étant en plastique rigide. L'application du produit sur les lèvres manque donc de confort. En outre, le maquillage obtenu n'est pas homogène et présente des stries. De plus, la distribution du produit ne peut pas être commandée par une main. En outre, le produit est conditionné de façon à être en contact avec le système d'entraînement, conduisant à un encrassement de ce dernier, pouvant rendre l'applicateur inutilisable.Document US-A-2 374 065 describes an application nozzle having an application surface comprising a plurality of orifices, this nozzle being made of rigid plastic. The application of the product on the lips therefore lacks comfort. In addition, the makeup obtained is not homogeneous and has streaks. In addition, product distribution cannot be controlled by one hand. In addition, the product is packaged so as to be in contact with the drive system, leading to fouling of the latter, which can render the applicator unusable.

La demanderesse a cherché à éviter les inconvénients ci-dessus en créant un ensemble de distribution pour l'application de produits liquides à pâteux dont la viscosité est comprise dans une large gamme ; l'ensemble permet ainsi l'utilisation de nouvelles matières premières, tout en assurant un maquillage précis et esthétique. Par ailleurs, elle a cherché à réaliser un ensemble de distribution de construction simple, ne s'encrassant pas sous l'effet du produit liquide à distribuer, facile à mouler et à conditionner et qui est donc d'un prix de revient avantageux. L'ensemble de distribution proposé par la demanderesse est, en outre, pratique à utiliser, pouvant être manipulé avec une seule main.The Applicant has sought to avoid the above drawbacks by creating a dispensing assembly for the application of liquid to pasty products whose viscosity is within a wide range; the whole thus allows the use of new raw materials, while ensuring a precise and aesthetic make-up. Furthermore, it sought to produce a distribution assembly of simple construction, not fouling under the effect of the liquid product to be distributed, easy to mold and to package and which is therefore of an advantageous cost price. The dispensing assembly proposed by the applicant is, moreover, practical to use, being able to be manipulated with one hand.

Ces objectifs sont atteints par un ensemble de distribution muni d'un embout d'application d'une conformation déterminée, réalisé en un matériau élastomérique souple. La demanderesse a trouvé, qu'en choisissant un tel embout, on pouvait obtenir un maquillage des lèvres profond et brillant. En outre, en dotant la surface d'application de cet embout de cavités ou de gorges d'étalement, on pouvait obtenir un maquillage plus rapide et plus homogène, qu'avec un pinceau d'application. De plus, ces gorges ou cavités pratiquées dans la surface d'application de l'embout permettent à l'applicateur d'absorber le surplus éventuel de produit déposé sur les lèvres. En particulier, la distribution du produit est effectuée par un mécanisme, actionnable par une seule main, dont l'actionnement ne change pas l'orientation de l'embout d'application.These objectives are achieved by a distribution assembly provided with a nozzle for applying a given conformation, made of a flexible elastomeric material. The Applicant has found that by choosing such a tip, one could obtain a deep and shiny lip makeup. In addition, by providing the application surface of this endpiece with cavities or spreading grooves, it was possible to obtain makeup more quickly and more uniformly than with an application brush. In addition, these grooves or cavities formed in the application surface of the nozzle allow the applicator to absorb any excess product deposited on the lips. In particular, the distribution of the product is carried out by a mechanism, actuable by one hand, the actuation of which does not change the orientation of the application nozzle.

En conséquence l'invention se rapporte à un ensemble de distribution et d'application d'un produit de consistance liquide à pâteuse, comprenant un réservoir tubulaire pour contenir le produit à distribuer communiquant avec au moins un orifice de distribution, ce réservoir, du côté opposé à l'orifice comportant au moins une fente longitudinale ; un piston apte à coulisser en translation à l'intérieur du réservoir comportant des moyens d'entraînement en translation traversant la fente et assurant la distribution du produit ; une embase raccordée au réservoir ; des moyens d'entraînement en translation du piston, le réservoir et l'embase étant réalisée en une pièce et la fente étant réalisée sur une partie seulement du réservoir. Selon l'invention, cet ensemble comporte, en outre, un embout d'application solidaire du réservoir équipé dudit orifice de distribution.Consequently, the invention relates to a set for dispensing and applying a product of liquid to pasty consistency, comprising a tubular reservoir for containing the product to be dispensed communicating with at least one dispensing orifice, this reservoir, on the side opposite to the orifice comprising at least one longitudinal slot; a piston capable of sliding in translation inside the reservoir comprising means for driving in translation passing through the slot and ensuring the distribution of the product; a base connected to the tank; means for driving the piston in translation, the reservoir and the base being produced in one piece and the slot being produced in only part of the reservoir. According to the invention, this assembly further comprises an application nozzle secured to the reservoir equipped with said dispensing orifice.

Par l'expression «produit de consistance liquide à pâteuse» on entend toute composition capable de s'écouler sous l'action d'un moyen de distribution exerçant une poussée sur ce produit, apte à provoquer l'expulsion du produit au travers de l'orifice de distribution.The expression “product of liquid to pasty consistency” means any composition capable of flowing under the action of a distribution means exerting a push on this product, capable of causing the expulsion of the product through the dispensing orifice.

Ce produit présente, avantageusement, une viscosité comprise dans la gamme allant de 0,6 Pa·s à 17 Pa·s.This product advantageously has a viscosity in the range from 0.6 Pa · s to 17 Pa · s.

De préférence les moyens d'entraînement sont constitués par une bague de manoeuvre entourant au moins une partie du réservoir et montée fixe en translation et libre en rotation autour de ce réservoir, cette bague étant munie intérieurement d'un élément d'entraînement hélicoïdal, et par un élément d'entraînement complémentaire solidaire du piston traversant la fente et apte à coulisser en translation à l'intérieur de la fente, ces moyens d'entraînement hélicoïdal et d'entraînement complémentaire étant agencés de sorte qu'une rotation de la bague de manipulation provoque une translation du piston pour assurer la distribution d'une dose de produit.Preferably, the drive means consist of an operating ring surrounding at least part of the tank and mounted fixed in translation and free to rotate around this tank, this ring being provided internally with a helical drive element, and by a complementary drive element integral with the piston passing through the slot and able to slide in translation inside the slot, these helical drive and complementary drive means being arranged so that a rotation of the ring handling causes a translation of the piston to ensure the distribution of a dose of product.

En outre, des moyens de maintien du piston dans le réservoir peuvent être prévus pour empêcher le moyen d'entraînement complémentaire du piston de sortir de la fente, dans laquelle il est disposé.In addition, means for holding the piston in the reservoir can be provided to prevent the complementary drive means for the piston from coming out of the slot, in which it is arranged.

A cet effet l'embase comporte une extrémité ouverte, les moyens de maintien étant constitués, avantageusement, par un bouchon prévu pour obturer cette extrémité, le bouchon pouvant supporter une jupe, dont une extrémité libre est destinée à venir en appui contre les moyens de butée.To this end, the base has an open end, the holding means advantageously being constituted by a plug provided for closing this end, the plug being able to support a skirt, one free end of which is intended to come to bear against the means of stop.

De préférence, l'élément d'entraînement est constitué par un filetage interne de la bague, et l'élément d'entraînement complémentaire est alors constitué par un filetage externe porté par le piston, ce filetage externe étant complémentaire au filetage interne de la bague. La bague comporte, avantageusement, une jupe cylindrique munie intérieurement d'une gorge ou d'une nervure annulaire, capable de coopérer avec une nervure ou une gorge complémentaire, portée par l'embase. Ainsi, cette bague est fixe en translation et libre en rotation.Preferably, the drive element is constituted by an internal thread of the ring, and the complementary drive element is then constituted by an external thread carried by the piston, this external thread being complementary to the internal thread of the ring . The ring advantageously comprises a cylindrical skirt provided internally with a groove or an annular rib, capable of cooperating with a complementary rib or groove, carried by the base. Thus, this ring is fixed in translation and free in rotation.

Selon une autre possibilité de réalisation, l'élément d'entraînement peut être constitué par au moins une gorge hélicoïdale pratiquée dans la paroi interne de la bague de manoeuvre et l'élément d'entraînement complémentaire est alors constitué par au moins un téton porté par le piston, le téton traversant la fente et étant capable de coulisser dans la gorge hélicoïdale.According to another possible embodiment, the drive element can be constituted by at least one helical groove formed in the internal wall of the operating ring and the complementary drive element is then constituted by at least one stud carried by the piston, the stud passing through the slot and being capable of sliding in the helical groove.

Le piston comporte une jupe cylindrique munie d'une paroi circulaire en contact avec le produit, les moyens d'entraînement de translation, du côté opposé au produit, étant agencés de sorte que lorsque ces moyens d'entraînement sont situés à l'extrémité inférieure de la fente, la paroi circulaire du piston est située au-dessus de l'extrémité supérieure de la fente.The piston has a cylindrical skirt provided with a circular wall in contact with the product, the translational drive means, on the side opposite to the product, being arranged so that when these drive means are located at the lower end of the slot, the circular wall of the piston is located above the upper end of the slot.

Selon un mode de réalisation particulier, l'embout d'application peut comporter une surface d'application munie d'au moins un orifice de distribution, la surface d'application de l'embout comportant au moins une cavité ou au moins une gorge, l'orifice étant situé dans cette cavité ou dans cette gorge.According to a particular embodiment, the application nozzle can comprise an application surface provided with at least one dispensing orifice, the application surface of the nozzle comprising at least one cavity or at least one groove, the orifice being located in this cavity or in this groove.

Selon un mode de réalisation intéressant, cet embout est conformé sensiblement en forme d'ogive muni d'une surface d'application plane, légèrement concave ou légèrement convexe, située en biais sur le flanc de l'ogive, équipé d'au moins un orifice de distribution.According to an advantageous embodiment, this endpiece is shaped substantially in the shape of a warhead provided with a flat application surface, slightly concave or slightly convex, located obliquely on the side of the warhead, equipped with at least one dispensing orifice.

De préférence, la cavité ou la gorge est prolongée, parallèlement à la surface d'application qui peut être plane, concave ou convexe, par des passages de façon à créer des canaux d'étalement pour le produit lors de son application sur le support. Dans le cas où ces passages sont pratiqués dans une surface concave ou convexe, on entend par le terme "parallèlement", des passages creusés dans la surface d'application à une profondeur sensiblement constante.Preferably, the cavity or the groove is extended, parallel to the application surface which may be flat, concave or convex, by passages so as to create spreading channels for the product when it is applied to the support. In the case where these passages are made in a concave or convex surface, the term "parallel" is understood to mean passages dug in the application surface at a substantially constant depth.

Selon une variante de réalisation, la surface d'application peut être constituée par une grille. Cette surface d'application peut comporter, avantageusement deux séries de fils tissés, les fils d'une série étant croisés avec ceux d'une autre série, notamment selon deux directions orthogonales. La surface d'application comporte ainsi une multitude d'orifices de distribution. Lorsqu'on réalise une multitude de tels orifices, leur section peut être variable et de forme différente.According to an alternative embodiment, the application surface can be constituted by a grid. This application surface may advantageously include two series of woven threads, the threads of one series being crossed with those of another series, in particular in two orthogonal directions. The application surface thus comprises a multitude of dispensing orifices. When a multitude of such orifices is produced, their section can be variable and of different shape.

Selon une autre variante de réalisation, la surface d'application peut comporter une multitude de picots, séparés par une multitude de cavités communiquant entre elles, une partie au moins des cavités étant munies, dans leur fond, d'au moins un orifice de distribution destiné à communiquer avec un réservoir contenant le produit à distribuer.According to another alternative embodiment, the application surface may comprise a multitude of pins, separated by a multitude of cavities communicating with each other, at least part of the cavities being provided, in their bottom, with at least one dispensing orifice intended to communicate with a reservoir containing the product to be dispensed.

Selon une autre variante de réalisation, l'embout d'application peut être muni d'une surface d'application destinée de venir au contact des lèvres, comportant des aspérités régulièrement réparties sur toute ou partie de la surface de celle-ci.According to another alternative embodiment, the application tip may be provided with an application surface intended to come into contact with the lips, comprising roughness regularly distributed over all or part of the surface thereof.

Les canaux disposés dans la surface d'application peuvent être rectilignes ou curvilignes et forment notamment des courbes fermées.The channels arranged in the application surface can be straight or curvilinear and in particular form closed curves.

Afin de conférer une douceur d'application et de la souplesse, l'embout peut être réalisé, avantageusement, en une matière souple, par exemple en un matériau élastomérique choisi dans le groupe des élastomères de polyéthylène, de polyuréthane, de polyester ; des polyéther bloc amides ; des polyvinyles ; des ter-polymères d'éthylène, de propylène et d'un diène (EPDM) ; des polymères de styrène-butadiène séquencés (SEBS-SIS), les silicones, les caoutchoucs nitrile, les latex, etc.. Ces matériaux ont l'avantage de bien étaler et lisser le produit, lors de son application sur le support. Avantageusement, le matériau élastomérique présente une dureté comprise dans la gamme de 40 à 70 Shore A.In order to impart a softness of application and flexibility, the end piece can be made, advantageously, from a flexible material, for example from an elastomeric material chosen from the group of elastomers of polyethylene, polyurethane, polyester; polyether block amides; polyvinyls; ter-polymers of ethylene, propylene and a diene (EPDM); block styrene-butadiene polymers (SEBS-SIS), silicones, nitrile rubbers, latexes, etc. These materials have the advantage of spreading and smoothing the product well, when it is applied to the support. Advantageously, the elastomeric material has a hardness in the range of 40 to 70 Shore A.

Ce distributeur peut comporter un capot de protection amovible. Dans ce cas, l'embout d'application comporte, avantageusement, un cordon d'étanchéité annulaire, sur lequel est posé, à friction, le capot de protection.This dispenser may include a removable protective cover. In this case, the application tip advantageously comprises an annular sealing bead, on which is placed, with friction, the protective cover.

L'ensemble de distribution et d'application qui vient d'être décrit est destiné, plus particulièrement à l'application d'un produit pour les lèvres. Aussi, selon un mode de réalisation de l'invention particulièrement intéressant, l'embout d'application est conformé sensiblement en forme d'ogive muni d'une surface d'application plane ou légèrement bombée, située en biais sur le flanc de l'ogive, équipé d'au moins un orifice de distribution, de façon à imiter la forme des rouge à lèvres classiques, à raisin solide, avant toute application. L'avantage d'un embout semi-rigide indéformable par rapport à un raisin déformable est de conserver sa forme jusqu'à épuisement du tube de rouge ou baume à lèvres et donc assurer jusqu'au bout un maquillage précis et homogène.The distribution and application assembly which has just been described is intended, more particularly for the application of a product for the lips. Also, according to a particularly advantageous embodiment of the invention, the application nozzle is shaped substantially in the shape of a warhead provided with a flat or slightly convex application surface, located obliquely on the side of the warhead, fitted with at least one dispensing orifice, so as to imitate the shape of conventional lipsticks, with solid grapes, before any application. The advantage of a non-deformable semi-rigid tip compared to a deformable grape is to keep its shape until the tube of lipstick or lip balm is exhausted and therefore ensure precise and homogeneous makeup until the end.

Avantageusement, cet embout d'application comporte un système de fermeture s'ouvrant sous la poussée du produit et empêchant l'air ambiant de rentrer dans le réservoir, lorsqu'il n'y a pas de distribution, arrêtant l'écoulement du produit instantanément après la distribution.Advantageously, this application nozzle comprises a closure system opening under the thrust of the product and preventing ambient air from entering the reservoir, when there is no dispensing, stopping the flow of the product instantly after distribution.

Cet ensemble de distribution de l'invention confère à l'application un grand confort de douceur et présente de bonnes propriétés d'étalement et de lissage du produit sur les lèvres, tout en étant capable d'absorber le surplus éventuel de produit. Il peut être manipulé avec une seule main. Le maquillage obtenu est précis et brillant.This dispensing assembly of the invention gives the application a great softness comfort and has good properties of spreading and smoothing the product on the lips, while being capable of absorbing the possible surplus of product. It can be handled with one hand. The makeup obtained is precise and shiny.

L'invention consiste, mis à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après, à propos d'exemples de réalisations décrits en référence aux dessins annexés, qui sont nullement limitatifs.The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be more explicitly discussed below, with regard to examples of embodiments described with reference to the appended drawings, which are by no means limiting.

La figure 1 est une vue en perspective éclatée d'un ensemble de distribution, conforme à l'invention, pour la distribution d'un produit de consistance liquide à pâteuse.Figure 1 is an exploded perspective view of a dispensing assembly, according to the invention, for dispensing a product of liquid to pasty consistency.

La figure 2 est une coupe axiale de l'ensemble de distribution de la figure 1 avant la première distribution.Figure 2 is an axial section of the distribution assembly of Figure 1 before the first distribution.

La figure 3 est une vue agrandie du réservoir de l'ensemble de la figure 1.FIG. 3 is an enlarged view of the reservoir of the assembly of FIG. 1.

La figure 4 est une coupe axiale de l'ensemble de distribution de la figure 1 en fin de distribution.Figure 4 is an axial section of the distribution assembly of Figure 1 at the end of distribution.

La figure 5 est une coupe axiale d'une variante d'embout d'application à clapet pouvant équiper l'ensemble de distribution de la figure 1.FIG. 5 is an axial section of a variant of a valve application nozzle which can be fitted to the distribution assembly of FIG. 1.

La figure 6 est une coupe axiale d'une autre variante d'embout d'application à clapet pouvant équiper l'ensemble de distribution de la figure 1.FIG. 6 is an axial section of another variant of a valve application nozzle which can be fitted to the distribution assembly of FIG. 1.

La figure 7 est une vue en coupe longitudinale d'une autre variante d'embout d'application comportant un clapet de distribution unidirectionnel.Figure 7 is a longitudinal sectional view of another variant of the application nozzle comprising a unidirectional distribution valve.

La figure 8 est une vue en coupe longitudinale d'une variante de l'embout de la figure 7, comportant un autre type de clapet de distribution unidirectionnel.Figure 8 is a longitudinal sectional view of a variant of the nozzle of Figure 7, comprising another type of unidirectional distribution valve.

Les figures 9 à 16 montrent, en perspective, différentes variantes de réalisation de l'embout de distribution pouvant équiper le distributeur de la figure 1.FIGS. 9 to 16 show, in perspective, different alternative embodiments of the dispensing nozzle which can be fitted to the dispenser of FIG. 1.

En se rapportant aux figures 1 à 4 des dessins, on peut voir un ensemble de distribution et d'application 1 d'un produit P de consistance liquide à pâteuse, comprenant un réservoir tubulaire 2 contenant le produit à distribuer. Ce produit est, en particulier un rouge à lèvres ayant une viscosité allant de 0,6 Pa·s à 17 Pa·s, et de préférence de 2 Pa·s à 10 Pa·s.Referring to Figures 1 to 4 of the drawings, one can see a dispensing and application assembly 1 of a product P of liquid to pasty consistency, comprising a tubular reservoir 2 containing the product to be dispensed. This product is, in particular a lipstick having a viscosity ranging from 0.6 Pa · s to 17 Pa · s, and preferably from 2 Pa · s to 10 Pa · s.

Comme visible notamment à la figure 2, le réservoir 2 comporte deux parties, une partie supérieure 2a contenant le produit P, et une partie inférieure 2b dans lequel est monté, à coulissement, un piston cylindrique 4. Ce piston a une paroi circulaire 41, en contact avec le produit P. L'extrémité libre de la partie 2a du réservoir comporte une zone de réduction 31 en forme de tronc de cône, se prolongeant en un goulot cylindrique 32. Ce goulot 32 est coiffé par un embout d'application 6, sensiblement en forme d'ogive ayant une surface d'application 63 plane ou légèrement bombée, située en biais sur le flanc de l'ogive. Au moins un orifice 61 est prévu dans la surface d'application 63, situé au fond d'une gorge 75 et en communication avec le goulot 32 du réservoir 2. Avantageusement, la surface 63 comporte des aspérités 64, facilitant l'étalement du produit P.As can be seen in particular in FIG. 2, the reservoir 2 has two parts, an upper part 2a containing the product P, and a lower part 2b in which is mounted, by sliding, a cylindrical piston 4. This piston has a circular wall 41, in contact with product P. The free end of part 2a of the reservoir has a reduction zone 31 in the form of a truncated cone, extending into a cylindrical neck 32. This neck 32 is capped by an application nozzle 6 , substantially in the form of a warhead having a flat or slightly curved application surface 63, located at an angle on the side of the warhead. At least one orifice 61 is provided in the application surface 63, located at the bottom of a groove 75 and in communication with the neck 32 of the reservoir 2. Advantageously, the surface 63 has asperities 64, facilitating the spreading of the product P.

Avantageusement, l'embout d'application 6 est réalisé en une matière élastomérique souple. Du côté du piston 4, la partie 2b comporte au moins une fente longitudinale 21, laissant apparaître au moins un ergot 43 solidaire du piston 4 et s'étendant radialement de celui-ci. En partie basse, la partie 2b se raccorde par une butée annulaire 22 à une portion cylindrique 23, dont la section interne est légèrement supérieure à la section externe du réservoir 2. La fente 21 se prolonge, vers le bas, sur toute la longueur de la portion cylindrique 23. Un socle parallelépipédique 27 est relié à la portion cylindrique 23, par une portion cylindrique 25 dont la section interne est sensiblement égale à la section externe de cette portion cylindrique 23, formant ainsi une butée annulaire 24. Les parties 22 à 27 constituent l'embase 9 de l'ensemble de distribution.Advantageously, the application tip 6 is made of a flexible elastomeric material. On the side of the piston 4, the part 2b comprises at least one longitudinal slot 21, revealing at least one lug 43 integral with the piston 4 and extending radially from the latter. In the lower part, the part 2b is connected by an annular stop 22 to a cylindrical portion 23, the internal section of which is slightly greater than the external section of the reservoir 2. The slot 21 extends, downward, over the entire length of the cylindrical portion 23. A parallelepiped base 27 is connected to the cylindrical portion 23, by a cylindrical portion 25 whose internal section is substantially equal to the external section of this cylindrical portion 23, thus forming an annular stop 24. The parts 22 to 27 constitute the base 9 of the distribution assembly.

L'embase est raccordée au réservoir et présente à l'intérieur au moins une zone de section plus importante que celle du réservoir de manière à former des moyens de butée et à permettre le passage du moyen d'entraînement complémentaire 43 du piston 4 dans la fente 21, cette zone se prolongeant jusqu'à la fente, c'est-à-dire cette disposition permet l'introduction du piston dans le réservoir.The base is connected to the reservoir and has inside at least one section of larger area than that of the reservoir so as to form stop means and to allow the passage of the complementary drive means 43 of the piston 4 in the slot 21, this zone extending to the slot, that is to say this arrangement allows the introduction of the piston into the reservoir.

L'extrémité libre du socle 27 comporte une ouverture 28, par laquelle le piston 4 peut être introduit dans le réservoir 2. Après cette introduction du piston, l'ouverture 28 est obturée par un bouchon 7, comportant un fond 71 (de toute forme) muni d'une jupe centrale 72 dont l'extrémité libre 73 s'étend jusqu'au niveau de la butée annulaire 22, et en appui contre le piston 4 en position basse, empêchant celui-ci de sortir du réservoir 2.The free end of the base 27 has an opening 28, through which the piston 4 can be introduced into the reservoir 2. After this introduction of the piston, the opening 28 is closed by a plug 7, comprising a bottom 71 (of any shape ) provided with a central skirt 72, the free end 73 of which extends to the level of the annular stop 22, and bears against the piston 4 in the low position, preventing the latter from leaving the reservoir 2.

Cet agencement du piston 4 dans le réservoir 2 assure une étanchéité parfaite entre les parties supérieure 2a et inférieure 2b du réservoir 2, permettant de stocker le produit P à l'abri de l'air ambiant. Le cas échéant, le piston 4 peut être muni d'un joint torique, capable de coulisser dans la partie supérieure 2a du réservoir 2, ce qui est avantageux pour la distribution de liquides de faible viscosité, ou de produits volatils. En outre, le produit P, lors de son conditionnement ou de sa distribution, ne peut pas s'échapper du réservoir ; on évite ainsi d'encrasser le mécanisme de distribution de cet ensemble. Pour minimiser les pertes de produit en fin de distribution, la paroi circulaire 41 du piston 4 porte un chapeau cylindrique 49, apte à remplir le volume interne du goulot 32 en fin de course.This arrangement of the piston 4 in the tank 2 ensures a perfect seal between the upper 2a and lower 2b parts of the tank 2, allowing the product P to be stored away from ambient air. If necessary, the piston 4 can be provided with an O-ring, capable of sliding in the upper part 2a of the tank 2, which is advantageous for the distribution of liquids of low viscosity, or volatile products. In addition, the product P, during its packaging or distribution, cannot escape from the reservoir; this avoids clogging the distribution mechanism of this assembly. To minimize product losses at the end of dispensing, the circular wall 41 of the piston 4 carries a cylindrical cap 49, capable of filling the internal volume of the neck 32 at the end of the stroke.

Une bague de manoeuvre 5, de forme cylindrique, ayant une longueur axiale légèrement supérieure à celle de la partie 2b du réservoir 2, est montée libre en rotation sur cette partie 2b. Un bourrelet d'encliquetage 29 formé sur la portion cylindrique 23 coopère avec une gorge interne annulaire 52 de la bague 5 assurant le maintien en place de celle-ci.An operating ring 5, of cylindrical shape, having an axial length slightly greater than that of the part 2b of the reservoir 2, is mounted to rotate freely on this part 2b. A latching bead 29 formed on the cylindrical portion 23 cooperates with an annular internal groove 52 of the ring 5 ensuring that it is held in place.

Une partie interne de la bague 5, en regard à la fente 21 comporte un filetage 51, apte à coopérer avec un filetage complémentaire 43a pratiqué sur l'extrémité libre de l'ergot 43.An internal part of the ring 5, facing the slot 21 includes a thread 51, able to cooperate with a complementary thread 43a formed on the free end of the lug 43.

Un capot de protection 8 est prévu, destiné à venir en butée contre un décrochement 26 formé entre le socle 27 et la portion cylindrique 25. La section de ce capot de protection 8 peut être circulaire ou de même forme que la section du socle 27. Le capot 8 porte une jupe interne cylindrique 81 dont l'extrémité libre 81a s'applique, de façon étanche contre un bourrelet annulaire 65 solidaire de l'embout d'application 6. Le capot 8 comporte, en outre un téton 82, situé à l'intérieur de la jupe 81, destiné à obturer l'orifice de distribution 61, ou à condamner un clapet de distribution (61, 66 ; voir figures 6 et 7).A protective cover 8 is provided, intended to come into abutment against a recess 26 formed between the base 27 and the cylindrical portion 25. The section of this protective cover 8 can be circular or of the same shape as the section of the base 27. The cover 8 carries a cylindrical internal skirt 81, the free end 81a of which is applied in leaktight manner against an annular bead 65 secured to the application nozzle 6. The cover 8 also comprises a stud 82, located at the inside of the skirt 81, intended to close the dispensing orifice 61, or to condemn a dispensing valve (61, 66; see FIGS. 6 and 7).

Les pièces constitutives de l'ensemble de distribution sont faciles à mouler. Pour les assembler, on commence par introduire le piston 4 dans l'ouverture 28 du socle 27, en faisant coulisser les ergots 43 du piston dans les fentes 21. On introduit à force le bouchon 7 dans l'ouverture 28, la jupe 72 empêchant ainsi le piston 4 de sortir du réservoir 2. Ensuite, on encliquette, par le haut, la bague de manoeuvre 5 sur la butée annulaire 22. En faisant tourner la bague d'un ou de deux tours, on engage le filetage 43a des ergots 43 dans le filetage interne 51 de la bague de manoeuvre. Le produit P est alors introduit, éventuellement à chaud, par le goulot 32, dans le réservoir 2. Par la suite, on met en place l'embout d'application 6 et le capot de protection 8. L'ensemble de distribution est prêt à l'emploi.The component parts of the distribution assembly are easy to mold. To assemble them, we first introduce the piston 4 into the opening 28 of the base 27, by sliding the lugs 43 of the piston into the slots 21. The plug 7 is forced into the opening 28, the skirt 72 preventing thus the piston 4 comes out of the tank 2. Then, the locking ring 5 is engaged from above on the annular stop 22. By rotating the ring one or two turns, the thread 43a of the pins is engaged 43 in the internal thread 51 of the operating ring. The product P is then introduced, possibly hot, through the neck 32, into the reservoir 2. Thereafter, the application nozzle 6 and the protective cover 8 are put in place. The dispensing assembly is ready to work.

Selon une autre possibilité, le remplissage du réservoir 2 est effectué par l'ouverture 28 : L'ensemble réservoir 2 - piston 4 - embout d'application 6 est retourné. Dans ce cas, le produit P est coulé à chaud au travers d'un orifice (non représenté) pratiqué dans la paroi circulaire 41 du piston. Cet orifice est obturé, après le remplissage, par un opercule.According to another possibility, the filling of the reservoir 2 is carried out through the opening 28: The reservoir 2 - piston 4 - application nozzle 6 assembly is turned over. In this case, the product P is poured hot through an orifice (not shown) formed in the circular wall 41 of the piston. This orifice is closed, after filling, with a seal.

Pour effectuer un maquillage des lèvres, l'utilisatrice, après avoir enlevé le capot de protection 8, saisit l'ensemble de distribution avec une main, en serrent la bague de manoeuvre entre le pouce et l'index, les autres doigts serrant l'embase 9. En faisant tourner la bague 5, une dose de produit est accumulée autour de l'orifice de distribution 61. En appliquant la surface d'application 63 sur les lèvres, l'utilisatrice étale le produit aisément, de façon précise ; le maquillage obtenu est esthétique, homogène et brillant.To make up the lips, the user, after removing the protective cover 8, grasps the dispensing assembly with one hand, tighten the operating ring between the thumb and forefinger, the other fingers tightening the base 9. By rotating the ring 5, a dose of product is accumulated around the dispensing orifice 61. By applying the application surface 63 to the lips, the user spreads the product easily and precisely; the makeup obtained is aesthetic, uniform and shiny.

La figure 5 représente, en coupe longitudinale, un embout d'application souple 6a, dont la surface d'application 63 comporte une découpe de façon à former un clapet unidirectionnel 61, en appui, en position de repos de l'ensemble de distribution, contre un insert rigide 62a, et s'écartant sous la poussée du produit lors de la distribution (position 62b).FIG. 5 represents, in longitudinal section, a flexible application nozzle 6a, the application surface 63 of which has a cutout so as to form a unidirectional valve 61, in support, in the rest position of the dispensing assembly, against a rigid insert 62a, and moving away under the thrust of the product during dispensing (position 62b).

La figure 6 représente, en coupe longitudinale, un embout d'application souple 6b, dont la surface d'application 63 est convexe et comporte une pluralité d'orifices 61. La surface d'application 6b comporte, en outre, un picot d'obturation, en forme de tronc de cône, obturant, en position de repos, le goulot 3 du réservoir, se soulevant sous la poussée du produit P et arrêtant la distribution instantanément, lorsque cesse la distribution.FIG. 6 represents, in longitudinal section, a flexible application end piece 6b, the application surface 63 of which is convex and has a plurality of orifices 61. The application surface 6b also comprises a spike obturation, in the form of a truncated cone, obturating, in the rest position, the neck 3 of the reservoir, lifting under the thrust of the product P and stopping the distribution instantaneously, when the distribution ceases.

La figure 7 représente un embout d'application 6c muni d'un clapet de distribution 63b, 44 unidirectionnel et comportant une surface d'application 63 concave dotée de quatre orifices de distribution 61. Cet embout 6c comporte un insert 40 rigide ou semi-rigide muni d'un passage 43 pour le produit, cet insert étant en contact intime avec la paroi interne de la surface d'application 63. Cet insert 40 comporte une gorge annulaire 45 reliant les orifices de distribution 61. Une tubulure 44 sépare la gorge annulaire 45 du passage 43. L'insert 40 comporte, en outre, un évidement périphérique 42 coopérant avec un bourrelet interne 41 de l'embout d'application 6c. En position de repos, le passage 43 est obturé par un pointeau central 63b solidaire d'une portion 63a de la surface d'application. Grâce à l'élasticité du matériau par lequel est réalisé l'embout 6c, cette portion 63a est capable de se soulever sous la poussée du produit, et de refermer le passage 43, instantanément et de façon étanche, lorsque cesse la distribution, pour empêcher l'air ambiant de venir en contact avec le produit. Ainsi, le produit P est protégé contre les salissures et l'oxydation. Dans ce cas, l'embout 6c sert aussi de capot de protection.FIG. 7 represents an application nozzle 6c provided with a unidirectional distribution valve 63b, 44 and comprising a concave application surface 63 provided with four distribution orifices 61. This nozzle 6c comprises a rigid or semi-rigid insert 40 provided with a passage 43 for the product, this insert being in intimate contact with the internal wall of the application surface 63. This insert 40 has an annular groove 45 connecting the dispensing orifices 61. A tube 44 separates the annular groove 45 of the passage 43. The insert 40 further comprises a peripheral recess 42 cooperating with an internal bead 41 of the application nozzle 6c. In the rest position, the passage 43 is closed by a needle central 63b secured to a portion 63a of the application surface. Thanks to the elasticity of the material by which the end piece 6c is made, this portion 63a is capable of lifting under the thrust of the product, and of closing the passage 43, instantaneously and in a sealed manner, when the dispensing ceases, to prevent ambient air to come into contact with the product. Thus, product P is protected against soiling and oxidation. In this case, the end piece 6c also serves as a protective cover.

La figure 8 représente un embout d'application 6d réalisé en élastomère de polyéthylène et comportant une variante de clapet de distribution 64, 65, 72 unidirectionnel. Selon cette figure, sur le goulot 32 du réservoir est monté un ajutage 60 de forme générale cylindrique, comportant un plateau circulaire 62 muni d'un orifice central 61. Du côté tourné vers le goulot, ce plateau 62 comporte une jupe d'étanchéité cylindrique 60a qui est introduite à force dans le goulot 32. Du côté opposé au goulot 32, le plateau 62 comporte un dôme central 64 situé dans le prolongement de l'orifice 61 et formant un trou borgne. Le dôme 64 comporte un ou plusieurs orifices radiaux 65. Le plateau 62 est muni, en outre d'une jupe cylindrique 66 dont l'extrémité libre est coupée en pente. Cette jupe 66 comporte un bourrelet annulaire 33 apte à coopérer avec une gorge annulaire complémentaire 68 dont est munie la paroi cylindrique interne 70 de l'embout d'application 6d. Cet embout 6d comporte une surface d'application 63 légèrement convexe sur laquelle on trouve des orifices de distribution 61 agencés en cercle. La surface d'application 63 comporte, du coté tourné vers le plateau 62 une jupe d'étanchéité 73 s'appliquant, de façon étanche, dans la jupe 66 portée par le plateau 62. Du même côté, un doigt de gant central 71 solidaire de la surface d'application 63, s'étend en direction du plateau 62 de façon à entourer entièrement le dôme 64. Ce doigt de gant 71 comporte une jupe cylindrique élastique 72 couvrant les orifices 65, capable de s'écarter de ces orifices sous la poussée du produit et revenir en position de fermeture instantanément, lorsque cesse la distribution.FIG. 8 represents an application nozzle 6d made of polyethylene elastomer and comprising a variant of distribution valve 64, 65, 72 unidirectional. According to this figure, on the neck 32 of the reservoir is mounted a nozzle 60 of generally cylindrical shape, comprising a circular plate 62 provided with a central orifice 61. On the side facing the neck, this plate 62 comprises a cylindrical sealing skirt 60a which is forced into the neck 32. On the side opposite the neck 32, the plate 62 has a central dome 64 located in the extension of the orifice 61 and forming a blind hole. The dome 64 comprises one or more radial orifices 65. The plate 62 is provided, in addition with a cylindrical skirt 66 whose free end is cut in slope. This skirt 66 comprises an annular bead 33 capable of cooperating with an additional annular groove 68 which is provided with the internal cylindrical wall 70 of the application nozzle 6d. This nozzle 6d has a slightly convex application surface 63 on which there are dispensing orifices 61 arranged in a circle. The application surface 63 comprises, on the side facing the plate 62 a sealing skirt 73 which is applied in a sealed manner in the skirt 66 carried by the plate 62. On the same side, a central glove finger 71 secured of the application surface 63, extends in the direction of the plate 62 so as to completely surround the dome 64. This thermowell 71 comprises an elastic cylindrical skirt 72 covering the orifices 65, capable of moving away from these orifices under product pushing and return to the closed position instantly, when dispensing stops.

Les figures 9 à 16 représentent plusieurs modes d'exécution de l'embout d'application, selon l'invention, sur lesquelles les mêmes éléments constitutifs ou les éléments jouant un rôle analogue, portent les numéros de référence de la figure 1.FIGS. 9 to 16 represent several embodiments of the application nozzle, according to the invention, in which the same constituent elements or the elements playing a similar role, bear the reference numbers of FIG. 1.

La figure 9 représente un embout d'application 6e comportant une surface d'application munie d'une gorge 15 de forme ovale et d'une cavité 16 allongée, disposée selon le grand axe de la gorge ovale, définissant une section ovale 17. Au fond de la gorge 15 et de la cavité 16 on trouve, repartis de façon régulière, des orifices de distribution 61.FIG. 9 represents an application nozzle 6e comprising an application surface provided with a groove 15 of oval shape and an elongated cavity 16, disposed along the major axis of the oval groove, defining an oval section 17. Au bottom of the groove 15 and of the cavity 16 there are, distributed regularly, distribution orifices 61.

Selon un mode de réalisation, non représenté, la surface 63 peut comporter au moins une zone munie d'aspérités, de manière à obtenir une surface granitée, facilitant l'étalement du produit. La zone munie d'aspérités peut être, par exemple, la section ovale 17 de la figure 9.According to one embodiment, not shown, the surface 63 may comprise at least one zone provided with asperities, so as to obtain a granite surface, facilitating the spreading of the product. The area provided with asperities can be, for example, the oval section 17 of FIG. 9.

La figure 10 montre, en perspective, l'embout d'application 6c de la figure 7, présentant une surface d'application 63 concave munie de quatre orifices de distribution 61.FIG. 10 shows, in perspective, the application nozzle 6c of FIG. 7, having a concave application surface 63 provided with four dispensing orifices 61.

La figure 11 montre, en perspective, un embout d'application 6f, dont la surface d'application 63 comporte une grille 10, dont les interstices, de forme carrée, forment des cavités ou gorges 75 au fond desquelles sont ménagés les orifices de distribution 61 amenant le produit P.FIG. 11 shows, in perspective, an application nozzle 6f, the application surface 63 of which comprises a grid 10, the interstices of which, in square shape, form cavities or grooves 75 at the bottom of which the dispensing orifices are formed 61 bringing the product P.

La figure 12 représente une variante 6g de l'embout de la figure 11, dans laquelle les cavités 75 sont de la même nature que celles de l'embout 6f de la figure 2, mais disposées différemment.Figure 12 shows a variant 6g of the tip of Figure 11, in which the cavities 75 are of the same nature as those of the tip 6f of Figure 2, but arranged differently.

La figure 13 montre un embout 6h dont la surface d'application 63 comporte deux séries de barrettes parallèles, les barrettes 81 d'une première série formant un angle sensiblement droit avec celles 82 d'une deuxième série et sont situées à un niveau différent. Ces barrettes définissent ainsi une grille d'application. Eventuellement, ces barrettes peuvent être agencées selon un tissu (alternance du chevauchement de deux séries de barrettes 81,82).FIG. 13 shows a tip 6h whose application surface 63 comprises two series of parallel bars, the bars 81 of a first series forming a substantially right angle with those 82 of a second series and are located at a different level. These bars thus define an application grid. Optionally, these bars can be arranged in a fabric (alternating overlapping of two series of bars 81, 82).

La figure 14 montre un embout 6i comportant une surface d'application 63 munie d'un orifice de distribution 61 central entouré d'une multitude de picots 11. Ainsi, des cavités 75, communiquant entre elles, sont formées entre les picots 11 de forme cylindrique. Les espaces inter-picots définissent des canaux.FIG. 14 shows a nozzle 6i comprising an application surface 63 provided with a central dispensing orifice 61 surrounded by a multitude of pins 11. Thus, cavities 75, communicating with each other, are formed between the pins 11 of shape cylindrical. The inter-pin spaces define channels.

La figure 15 montre un embout d'application 6j, dont la surface d'application 63 comporte des picots 12 de section carrée, disposés en alternance avec des cavités 75 de section carrée, au fond desquelles sont ménagés des orifices de distribution 61. Un passage existe entre une cavité et les cavités voisines, selon la diagonale des sections des cavités 75, définissant des canaux pour le produit.FIG. 15 shows an application nozzle 6j, the application surface 63 of which has pins 12 of square section, arranged alternately with cavities 75 of square section, at the bottom of which are dispensing orifices 61. A passage exists between a cavity and the neighboring cavities, along the diagonal of the sections of the cavities 75, defining channels for the product.

L'embout d'application 6k, selon la figure 16, comporte une surface d'application 5 formée par deux anneaux 14a, 14b concentriques, au fond desquels sont disposées des barrettes radiales 75a, 75b, les interstices entre ces barrettes constituant des orifices de distribution 61 du produit.The application nozzle 6k, according to FIG. 16, comprises an application surface 5 formed by two concentric rings 14a, 14b, at the bottom of which are arranged radial bars 75a, 75b, the interstices between these bars constituting orifices distribution 61 of the product.

Claims (26)

Ensemble de distribution et d'application d'un produit de consistance liquide à pâteuse, comprenant un réservoir tubulaire (2) pour contenir le produit à distribuer communiquant avec au moins un orifice de distribution (61), ce réservoir, du côté opposé à l'orifice (61), comportant au moins une fente longitudinale (21) ayant une extrémité supérieure 21a et une extrémité inférieure 21b ; un piston (4) apte à coulisser en translation à l'intérieur du réservoir (2) comportant des moyens d'entraînement en translation (43) traversant la fente (21) et assurant la distribution du produit ; une embase (9) raccordée au réservoir ; des moyens d'entraînement en translation du piston (4), caractérisé en ce que le réservoir (2) et l'embase (9) sont réalisés en une pièce, la fente étant réalisée sur une partie seulement du réservoir et en ce que cet ensemble comporte, en outre, un embout d'application (6, 6a à 6k) solidaire du réservoir équipé dudit orifice de distribution (61).Assembly for dispensing and applying a product of liquid to pasty consistency, comprising a tubular reservoir (2) for containing the product to be dispensed communicating with at least one dispensing orifice (61), this reservoir, on the side opposite the orifice (61), comprising at least one longitudinal slot (21) having an upper end 21a and a lower end 21b; a piston (4) able to slide in translation inside the tank (2) comprising translation drive means (43) passing through the slot (21) and ensuring the distribution of the product; a base (9) connected to the tank; means for translational driving of the piston (4), characterized in that the reservoir (2) and the base (9) are produced in one piece, the slot being produced on only part of the reservoir and in that this assembly also comprises an application nozzle (6, 6a to 6k) integral with the reservoir equipped with said dispensing orifice (61). Ensemble selon la revendication 1, caractérisé en ce que les moyens d'entraînement sont constitués par une bague de manoeuvre (5) entourant au moins une partie du réservoir et montée fixe en translation et libre en rotation autour de ce réservoir, cette bague (5) étant munie intérieurement d'un élément d'entraînement hélicoïdal (51), et par un élément d'entraînement complémentaire (43) solidaire du piston (4) traversant la fente (21) et apte à coulisser en translation à l'intérieur de la fente, ces moyens d'entraînement hélicoïdal (51) et d'entraînement complémentaire (43) étant agencés de sorte qu'une rotation de la bague de manipulation (5) provoque une translation du piston (4) pour assurer la distribution d'une dose de produit.Assembly according to claim 1, characterized in that the drive means consist of an operating ring (5) surrounding at least part of the tank and mounted fixed in translation and free to rotate around this tank, this ring (5 ) being internally provided with a helical drive element (51), and by a complementary drive element (43) integral with the piston (4) passing through the slot (21) and capable of sliding in translation inside the slot, these helical drive means (51) and complementary drive means (43) being arranged so that a rotation of the handling ring (5) causes a translation of the piston (4) to ensure the distribution of a dose of product. Ensemble selon l'une des revendications 1 ou 2, caractérisé en ce que l'embase (9) présente à l'intérieur au moins une zone de section (25) plus importante que celle du réservoir de manière à former des moyens de butée et à permettre le passage du moyen d'entraînement complémentaire (43) du piston (4) dans la fente (21), cette zone se prolongeant jusqu'à la fente.Assembly according to one of claims 1 or 2, characterized in that the base (9) has inside at least one section area (25) larger than that of the tank so as to form stop means and to allow the passage of the complementary drive means (43) of the piston (4) in the slot (21), this zone extending up to the slot. Ensemble selon l'une des revendications 2 ou 3, caractérisé en ce que des moyens de maintien (7) sont prévus pour empêcher le moyen d'entraînement complémentaire (43) du piston (4) de sortir de la fente (21).Assembly according to one of claims 2 or 3, characterized in that holding means (7) are provided to prevent the complementary drive means (43) of the piston (4) from coming out of the slot (21). Ensemble selon la revendication 4, caractérisé en ce que l'embase (9) comporte une extrémité ouverte (28), les moyens de maintien étant constitués par un bouchon (7) obturant cette extrémité (28), ce bouchon (7) supportant une jupe (72), dont une extrémité libre (73) est destinée à venir en appui contre les moyens de butée (22).Assembly according to claim 4, characterized in that the base (9) has an open end (28), the holding means being constituted by a plug (7) closing this end (28), this plug (7) supporting a skirt (72), one free end (73) of which is intended to bear against the stop means (22). Ensemble selon l'une des revendications 2 à 5, caractérisé en ce que l'élément d'entraînement est constitué par un filetage interne (51) de la bague (5) et que l'élément d'entraînement complémentaire (43) est constitué par un filetage externe (43a) porté par le piston (4), le filetage externe (43a) étant complémentaire au filetage interne (51) de la bague (5).Assembly according to one of claims 2 to 5, characterized in that the drive element is constituted by an internal thread (51) of the ring (5) and that the complementary drive element (43) is constituted by thread external (43a) carried by the piston (4), the external thread (43a) being complementary to the internal thread (51) of the ring (5). Ensemble selon l'une des revendications 2 à 5, caractérisé en ce que l'élément d'entraînement (51) est constitué par au moins une gorge hélicoïdale pratiquée dans la paroi interne de la bague (5) et que l'élément d'entraînement complémentaire (43) est constitué par au moins un ergot porté par le piston (4), l'ergot étant capable de coulisser dans ladite gorge.Assembly according to one of claims 2 to 5, characterized in that the drive element (51) is constituted by at least one helical groove formed in the internal wall of the ring (5) and that the element complementary drive (43) consists of at least one lug carried by the piston (4), the lug being capable of sliding in said groove. Ensemble selon l'une des revendications précédentes, caractérisé en ce que le piston (4) comporte une jupe cylindrique (42) munie d'une paroi circulaire (41) en contact avec le produit, les moyens d'entraînement en translation (43), du côté opposé au produit, étant agencés de sorte que lorsque ces moyens d'entraînement (43) sont situés à l'extrémité inférieure (21b) de la fente (21), la paroi circulaire (41) du piston est située au-dessus de l'extrémité supérieure (21a) de la fente (21), pour assurer une étanchéité.Assembly according to one of the preceding claims, characterized in that the piston (4) comprises a cylindrical skirt (42) provided with a circular wall (41) in contact with the product, the means for driving in translation (43) , on the side opposite to the product, being arranged so that when these drive means (43) are located at the lower end (21b) of the slot (21), the circular wall (41) of the piston is located above above the upper end (21a) of the slot (21), to ensure a seal. Ensemble selon l'une des revendications précédentes, caractérisé en ce que l'embout d'application (6, 6a à 6k) est conformé sensiblement en forme d'ogive muni d'une surface d'application (63) plane ou légèrement bombée, située en biais sur le flanc de l'ogive, équipé de l'orifice de distribution.Assembly according to one of the preceding claims, characterized in that the application nozzle (6, 6a to 6k) is shaped substantially in the form of a warhead provided with a flat or slightly curved application surface (63), located obliquely on the side of the warhead, fitted with the dispensing orifice. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que l'embout d'application (6, 6a à 6k) comporte un système de fermeture (62a, 62b) s'ouvrant sous la poussée du produit, et empêchant l'air ambiant de rentrer dans le réservoir (2), lorsqu'il n'y a pas de distribution, et arrêtant l'écoulement du produit instantanément après la distribution.Assembly according to any one of the preceding claims, characterized in that the application nozzle (6, 6a to 6k) comprises a closure system (62a, 62b) opening under the pressure of the product, and preventing the ambient air entering the tank (2), when there is no dispensing, and stopping the flow of the product instantly after dispensing. Ensemble selon l'une des revendications précédentes, caractérisé en ce que l'embout (6, 6a à 6k) comporte une surface d'application (63) pourvue d'au moins une cavité ou au moins une gorge (15, 75), l'orifice (61) étant situé dans cette cavité ou dans cette gorge (15, 75).Assembly according to one of the preceding claims, characterized in that the end piece (6, 6a to 6k) comprises an application surface (63) provided with at least one cavity or at least one groove (15, 75), the orifice (61) being located in this cavity or in this groove (15, 75). Ensemble selon la revendication 11, caractérisé en ce que la cavité ou la gorge (15, 75) est prolongée, parallèlement à la surface d'application, par des passages de façon à créer des canaux d'étalement pour le produit, lors de son application sur le support.Assembly according to claim 11, characterized in that the cavity or the groove (15, 75) is extended, parallel to the application surface, by passages so as to create spreading channels for the product, during its application on the support. Ensemble selon l'une des revendications précédentes, caractérisé en ce que l'embout d'application (6, 6a à 6k) est réalisé en une matière souple.Assembly according to one of the preceding claims, characterized in that the application tip (6, 6a to 6k) is made of a flexible material. Ensemble selon l'une des revendications précédentes, caractérisé en ce que l'embout d'application (6, 6a à 6k) est réalisé en un matériau élastomérique choisi dans le groupe des élastomères de polyéthylène, de polyuréthane, de polyester ; des polyéther bloc amides ; des polyvinyles ; des ter-polymères d'éthylène, de propylène et d'un diène (EPDM) ; des polymères de styrène-butadiène séquencés (SEBS-SIS), des silicones, des caoutchoucs nitrile, des latex.Assembly according to one of the preceding claims, characterized in that the application nozzle (6, 6a to 6k) is made of an elastomeric material chosen from the group of elastomers of polyethylene, polyurethane, polyester; polyether block amides; polyvinyls; ter-polymers of ethylene, propylene and a diene (EPDM); block styrene-butadiene polymers (SEBS-SIS), silicones, nitrile rubbers, latexes. Ensemble selon la revendication 14, caractérisé en ce que le matériau élastomérique présente une dureté comprise dans la gamme de 40 à 70 Shore A.Assembly according to claim 14, characterized in that the elastomeric material has a hardness in the range from 40 to 70 Shore A. Ensemble selon l'une des revendications 11 à 15, caractérisé en ce que la surface d'application (63) est plane.Assembly according to one of claims 11 to 15, characterized in that the application surface (63) is planar. Ensemble selon l'une des revendications 11 à 15, caractérisé en ce que la surface d'application (63) est convexe.Assembly according to one of claims 11 to 15, characterized in that the application surface (63) is convex. Ensemble selon l'une des revendications 11 à 15, caractérisé en ce que la surface d'application (63) est concave.Assembly according to one of claims 11 to 15, characterized in that the application surface (63) is concave. Ensemble selon l'une des revendications 11 à 18, caractérisé en ce que la surface d'application (63) est constituée par une grille (10).Assembly according to one of claims 11 to 18, characterized in that the application surface (63) consists of a grid (10). Ensemble selon la revendication 19, caractérisé en ce que la surface d'application comporte deux séries de fils tissés, les fils d'une série étant croisés avec ceux d'une autre série.Assembly according to claim 19, characterized in that the application surface comprises two series of woven threads, the threads of one series being crossed with those of another series. Ensemble selon l'une des revendications 11 à 20, caractérisé en ce que la surface d'application (63) comporte une multitude de picots (11), séparés par une multitude de cavités (15, 75) communiquant entre elles, une partie au moins des cavités étant munies d'au moins un orifice de distribution (61).Assembly according to one of claims 11 to 20, characterized in that the application surface (63) comprises a multitude of pins (11), separated by a multitude of cavities (15, 75) communicating with each other, a part at less of the cavities being provided with at least one dispensing orifice (61). Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que l'embout d'application (6, 6a à 6k) est muni d'une surface d'application (63) comportant des aspérités régulièrement réparties.Assembly according to any one of the preceding claims, characterized in that the application nozzle (6, 6a to 6k) is provided with an application surface (63) comprising roughness regularly distributed. Ensemble selon l'une quelconque des revendications 12 à 22, caractérisé en ce que les canaux sont rectilignes ou curvilignes.Assembly according to any one of Claims 12 to 22, characterized in that the channels are rectilinear or curvilinear. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que le produit est une composition cosmétique.Assembly according to any one of the preceding claims, characterized in that the product is a cosmetic composition. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que le produit est une composition pour les lèvres de consistance liquide à pâteuse.Assembly according to any one of the preceding claims, characterized in that the product is a composition for lips of liquid to pasty consistency. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que le produit à distribuer présente une viscosité comprise dans la gamme allant de 0,6 Pa·s à 17 Pa·s.Assembly according to any one of the preceding claims, characterized in that the product to be dispensed has a viscosity in the range from 0.6 Pa · s to 17 Pa · s.
EP95402560A 1994-12-06 1995-11-15 Liquid or pasty product dispenser with an applicator head Expired - Lifetime EP0715821B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9414653 1994-12-06
FR9414653A FR2727609B1 (en) 1994-12-06 1994-12-06 DISPENSING ASSEMBLY FOR THE APPLICATION OF A LIQUID CONSISTENT TO PASTE
FR9414652A FR2727608B1 (en) 1994-12-06 1994-12-06 DISPENSER FOR A LIQUID CONSISTENCY PRODUCT WITH PASTE
FR9414652 1994-12-06

Publications (3)

Publication Number Publication Date
EP0715821A2 true EP0715821A2 (en) 1996-06-12
EP0715821A3 EP0715821A3 (en) 2001-12-05
EP0715821B1 EP0715821B1 (en) 2004-05-19

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EP95402560A Expired - Lifetime EP0715821B1 (en) 1994-12-06 1995-11-15 Liquid or pasty product dispenser with an applicator head

Country Status (6)

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US (1) US5879095A (en)
EP (1) EP0715821B1 (en)
JP (1) JP2885676B2 (en)
CA (1) CA2164471C (en)
DE (1) DE69533055T2 (en)
ES (1) ES2220921T3 (en)

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EP2084985A1 (en) * 2008-02-04 2009-08-05 Rexam Reboul Joint application system for a stick of a lipstick and a pasty liquid product
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Also Published As

Publication number Publication date
DE69533055T2 (en) 2005-05-12
DE69533055D1 (en) 2004-06-24
EP0715821B1 (en) 2004-05-19
US5879095A (en) 1999-03-09
CA2164471A1 (en) 1996-06-07
JPH08229462A (en) 1996-09-10
CA2164471C (en) 2002-02-19
EP0715821A3 (en) 2001-12-05
ES2220921T3 (en) 2004-12-16
JP2885676B2 (en) 1999-04-26

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