EP0382594A1 - Piston-type dispenser for a pasty or solid substance - Google Patents

Piston-type dispenser for a pasty or solid substance Download PDF

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Publication number
EP0382594A1
EP0382594A1 EP90400193A EP90400193A EP0382594A1 EP 0382594 A1 EP0382594 A1 EP 0382594A1 EP 90400193 A EP90400193 A EP 90400193A EP 90400193 A EP90400193 A EP 90400193A EP 0382594 A1 EP0382594 A1 EP 0382594A1
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EP
European Patent Office
Prior art keywords
piston
reservoir
product
motor mechanism
rod
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
EP90400193A
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German (de)
French (fr)
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EP0382594B1 (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
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LOreal SA
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Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP0382594A1 publication Critical patent/EP0382594A1/en
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Publication of EP0382594B1 publication Critical patent/EP0382594B1/en
Anticipated expiration legal-status Critical
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    • 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
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/16—Refill sticks; Moulding devices for producing sticks
    • 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

Definitions

  • the present invention relates to a dispenser of a pasty or solid product, for example, of a cosmetic product intended to be spread.
  • this dispenser is of the type comprising a reservoir and a translatable piston in slow advance in this reservoir, in order to eject the product out of it, and this, thanks to a manually controlled motor mechanism.
  • This dispenser can be used for poured products, such as lipstick, as well as for extruded products, such as foundation, or compacted products, such as eyeshadow.
  • the piston which drives the product to be ejected in translation, is generally mounted at the end of a threaded rod, which cooperates with a nut secured to the dispenser.
  • This rod is itself rotated step by step, by means of a push button actuated by the user (see, for example, French patent 2,555,471 and French patent application 88-05026 filed April 15, 1988).
  • the filling of such a dispenser currently poses production problems.
  • the part of the distributor comprising the motor mechanism has a relatively high cost price.
  • These two parts of the dispenser are assembled later. It is at assembly that the difficulty comes into play and, in particular, when it is necessary to thread the piston carried by the rod into the reservoir tube.
  • the piston is engaged at the rear end of the tank, the layer of air between the end of the product and the face of the piston opposite is trapped.
  • the present invention provides a device for overcoming these drawbacks. It proposes, in particular, to use a piston, which is a separate part from the screw with which it cooperates, and which is traversed by a channel allowing, at the time of assembly, the evacuation of the air comprised between the product. and the piston. Once the product is in place in the tank, this piston is threaded through the tank tube to the product, the air between the product and the piston escaping through this channel. The piston is thus directly engaged on the product. We then place the part of the distributor with the motor mechanism on the tank. If the tank is not interchangeable, the motor mechanism may not be disengageable.
  • the rod is in the maximum retraction position and it is brought into contact with the piston by operating the motor mechanism several times to reach priming of the distribution.
  • the reservoir is interchangeable, the rod must be able to be disengaged from the motor mechanism, because, at the end of the distribution relating to a reservoir, the rod is in the maximum projecting position and must be able to return to the new tank, in the vicinity of its maximum retraction position.
  • the rod moves back by pressing against the piston contained in the tank and this until the tank is fixed; it follows that the distribution can begin without priming maneuver since the rod is in contact with the piston by the very establishment of the new reservoir.
  • the invention therefore relates to a distributor of solid or pasty product to spread, said product being contained in a reservoir and delivered by means of a motor mechanism controlled manually by the user, said reservoir being a tube, the interior of which is cylindrical and of any section, tube which has a dispensing orifice and in which the said product is disposed between the said dispensing orifice and a displaceable piston, slowly advancing, the translation of the piston being obtained by means of the motor mechanism, the said motor mechanism comprising a rod at the end of which said piston is mounted, characterized in that the piston is crossed, from its face closest to the product to its face opposite the elements of the motor mechanism, by at least one channel .
  • a channel is located in the axial extension of the rod and the piston and the rod are two separate parts, the head of the rod resting on a surface of the piston to push it in translation.
  • the end of the head of the rod carries a needle, the free end of which is shaped substantially conically, the surface of the piston with which it cooperates having a conical shape corresponding to that of the end of the needle.
  • the surface of the piston substantially shaped like a cone can be extended by a cylindrical guide bore.
  • the needle may include, in the vicinity of its end which is assembled on the rod, a plate perpendicular to the axis of the rod.
  • the peripheral wall of the piston is provided with at least one annular lip, in contact, with a slight tightening, with the internal wall of said reservoir.
  • the piston can comprise at least one annular lip towards each of its end faces.
  • the edges of the dispensing orifice are covered, at least partially, with a layer, which is used for applying the product and which is made of a breathable material, said layer being positioned astride said edges.
  • This material can be porous and spongy.
  • This application layer can be a flock or a synthetic foam with open or closed cells. If it is a flock, it can be bonded or deposited by an electrostatic process on the edges of the dispensing orifice.
  • the edge of the dispensing orifice is disposed at an angle relative to the axis of the reservoir.
  • the reservoir is fitted inside a tubular end-piece with which it is associated, its external wall and the internal wall of the end-piece each being provided with a helical ramp, said helical ramps cooperating to maintain said reservoir in determined angular position. with respect to said tip.
  • the reservoir is removable with respect to the motor mechanism and the rod can be disengaged from the motor mechanism when the reservoir is assembled on said motor mechanism.
  • the rod is a screw driven in rotation by the motor mechanism and cooperating with a nut fixed relative to the end piece, the nut being split along a generator, the end of the reservoir opposite to the dispensing orifice of said reservoir s '' fitting by conical fitting on outer walls of the nut.
  • the distributor comprises a reservoir 1, which is mounted on a part 2 comprising the motor mechanism of the distributor. These two parts of the dispenser are fitted and held in place in a tubular end piece 3, which forms an overcap constituting the body of the dispenser.
  • the overcap 3 is fixed, for example by screwing or snapping onto a base 26 secured to the motor mechanism.
  • the reservoir 1 is a tube, the interior of which, intended to contain a product P consisting of a compacted paste or powder, is a straight cylinder of circular cross section. One of his ends is a dispensing orifice 4. Towards its other end is threaded the piston 5, which comes into contact with the product P and which cooperates with the end of a screw 6. The thread of this screw 6 cooperates with the thread of a nut 7 of the motor mechanism 2, in order to drive the piston 5 in translation along the axis of the reservoir 1.
  • the dispensing opening 4 of the reservoir 1 is at an angle relative to the axis of the latter, with an inclination of 60 ° relative to a plane orthogonal to the axis of the tank.
  • the outer face of the wall of the tank 1 is slightly frustoconical. This outer wall matches the inner wall of the tubular end cap or overcap 3, in which it is fitted; part of the reservoir 1, towards the dispensing opening 4, protrudes from the overcap 3.
  • the end 9 of the overcap 3, closest to the opening 4, is also at an angle relative to the axis of the reservoir 1 and is parallel to the plane, in which the opening 4 is located.
  • the wall of the overcap 3 widens from the end 9 approximately to the middle of the tank 1.
  • the edges of the dispensing opening 4 are coated with a flock layer 8.
  • This flock layer 8 is positioned astride the edges of the opening 4, the flock surface 8 inside the tank 1 being less important than the surface of floc outside the tank 1.
  • the thickness of this layer of floc 8 is less than 30% of the thickness of the edge of the dispensing opening 4.
  • the end of floc 8 la further from the opening 4, on the outer surface of the reservoir 1, is positioned on a circle in a plane orthogonal to the axis of the reservoir 1.
  • the flocking is obtained before filling, so as to avoid polluting the product, by electrostatic deposition of bristles, or by bonding of these bristles, on the walls of the tank.
  • a mandrel (not shown) threaded inside, and substantially matching its inner wall.
  • the end of this mandrel closest to the opening 4 is slightly offset, in the tank 1, relative to the edges of the opening 4, so that the flock 8 can be deposited on the inside wall of the tank 1, its deposition surface being perfectly delimited by the level of the mandrel.
  • the flock can be replaced by a synthetic foam, foamed, for example, "in situ".
  • the piston 5 is an element of revolution. One of its faces is a plate 10 in contact with the product P. This plate 10 is crossed by a channel 11 axially centered and extended in the piston 5, beyond the plate 10, by a conical recess 12 formed in the body of the piston 5. This conical recess 12 is itself extended axially by a bore 14, which opens on the other face of the piston 5. Each of the end faces of the piston 5 is surrounded at its periphery by an annular lip 13 intended to be in contact with a slight tightening with the inner wall of the reservoir 1. The head of the screw 6 carries a needle 16 whose conical end 15 is intended to cooperate with the conical recess 12 of the piston 5.
  • the needle 16 is a cylindrical body whose the diameter is slightly smaller than that of bore 14; it fits by sliding in this bore 14.
  • the needle 16 comprises, at its end opposite to the conical part 15, a plate 17, which is a disc bearing on the rod 6; this disc has a larger diameter than the diameters of the rod 6 and of the cylindrical body of the needle 16.
  • the nut 7 is a split nut dividing three sectors 18 distributed symmetrically around the axis of the nut 7. These three sectors 18 are connected at one of their ends by a cylindrical skirt 20 extending their peripheral walls. Their ends opposite this skirt 20 form the frustoconical head of the nut, which is axially traversed by a bore 19 having substantially the same diameter as the screw 6 which is arranged inside. The bore 19 is threaded at its end opposite the skirt 20. Its thread 21 is intended to cooperate with that of the screw 6.
  • the interior wall of the reservoir 1 is provided, at its end opposite to the dispensing opening 4, a seat 24 shaped frusto-conically so as to adapt to the head of the nut 7.
  • the overcap 3 of the dispenser and the reservoir 1 are each provided, towards the end of the reservoir 1 opposite the dispensing opening 4, with a helical ramp (22, 23), the ramp 22 being arranged on the outer wall of the tank 1, the ramp 23 being disposed on the inner wall of the overcap 3.
  • These two ramps 22 and 23 are each formed by a recess of the wall on which they are arranged.
  • the wall of the reservoir 1 is, at the level of the ramp 22, thinner on the side close to the dispensing opening 4 than on the other side with respect to the ramp 22.
  • the wall of the overcap 3 is at level of the ramp 23, thicker in its part closest to the open end 9 than on the other side relative to the ramp 23.
  • the tank 1, the overcap 3, the piston 5 and the nut 7 are molded plastic parts. After obtaining these different parts, we proceed, firstly, to fill the tank 1 and, separately, to assemble the parts of part 2 of the distributor comprising the motor mechanism.
  • a motor mechanism can be of the type described in the patent application filed in France by the applicant under the number 88.05026; it comprises, in particular, a spring R and a push button 25 mounted at the end of the base 26, which is the farthest from the tank 1; the depression of the push button 25 makes it possible to control the translation of the piston 5 and the spring R ensures the return of said push button.
  • the reservoir 1 is mounted on the part 2 comprising the motor mechanism by fitting the assembly into the overcap 3.
  • the end of the motor device opposite the nut 7 is integral with the base 26 on which is fixes the end of the overcap 3.
  • This base 26 is screwed onto an internal thread 27, which is provided with the corresponding end of the overcap 3.
  • the fixing is effected by snap-fastening.
  • the device of FIG. 2 To fill the reservoir 1, whether for pouring, extruding or compacting a product therein, the device of FIG. 2 is used.
  • the reservoir 1 is held vertically in a bore formed in a support 28, a bore in which its opening distribution 4 is embedded, the conical bearing 24 opening upwards.
  • the bottom of the bore of the support 28 is an inclined plane on which the edges of the dispensing opening 4 rest. Its side wall follows and clamps the flock 8 against the edges of the dispensing opening 4.
  • the reservoir 1 and the support 28 thus together form a container having a bottom, capable of retaining liquid or solid substances and into which it is possible to pour a product, for example, lipstick .
  • the piston 5 is threaded, its plate 10 being directly opposite the product P.
  • the piston 5 slides in the internal cylinder of the reservoir 1 until its plate 10 is in contact with the product P, whatever the level of filling of the product P in the tank; the air between the plate 10 and the product P escapes through the channel 11.
  • the screw 6 is then positioned so that the conical part 15 of its needle 16 is embedded in the conical recess 12 of the piston 5 after have been guided in the cylindrical bore 14.
  • the assembly formed by the base 26 and the part 2 of the distributor, which includes the motor mechanism, is secured, by threading the screw 6 into the bore 19, up to 'that the sectors 18 forming the conical head of the nut 7 rest on the frustoconical surface 24 of the reservoir 1, thus closing the thread 21 of the bore 19 on the thread of the screw 6.
  • the assembly is then assembled and ready to serve.
  • the user releases from the reservoir 1 a thin layer of product P which he applies at the desired location by spreading it over the layer of flock 8, which thus serves as an applicator pad and prevents the product P does not smudge the edges of the reservoir 1.
  • the layer of flock 8 has, in addition, the advantage of softening the contact between the skin and the dispenser. Once spread, the product P will be found substantially just below the rounded end of the flock 8 on the edges of the dispensing opening 4, but above the end of the wall of the reservoir 1. It is also possible to associate at the dispensing opening 4 a plug (not shown) making it possible to prevent the product P from drying out or deteriorating.

Abstract

Le distributeur de produit pâteux ou solide à étaler comporte un réservoir (1) contenant ledit produit (P), ledit produit (P) étant délivré grâce à un mécanisme-moteur commandé manuellement par l'utilisateur, ledit réservoir (1) étant un tube, dont l'intérieur est cylindrique et de section quelconque, tube qui comporte un orifice de distribution (4) et dans lequel ledit produit (P) est disposé entre ledit orifice de distribution (4) et un piston (5) déplaçable, à avance lente, la translatation du piston étant obtenue au moyen du mécanisme-moteur, ledit mecanisme-moteur comportant une tige (6) en bout de laquelle est monté ledit piston (5), ledit piston (5) étant traversé, de sa face (10) la plus proche du produit (P) à sa face en regard des éléments du mécanisme-moteur, par au moins un canal (11). Les bords de l'orifice de distribution (4) sont recouverts, au moins partiellement, d'une couche (8), qui sert dà l'application du produit (P) et est réalisée en un matériau perméable à l'air, ladite couche (8) étant positionnée à cheval sur lesdits bords.The distributor of pasty or solid product to be spread comprises a reservoir (1) containing said product (P), said product (P) being delivered by means of a motor mechanism controlled manually by the user, said reservoir (1) being a tube , the interior of which is cylindrical and of any cross-section, tube which has a dispensing orifice (4) and in which said product (P) is disposed between said dispensing orifice (4) and a displaceable piston (5) slow, the piston translating being obtained by means of the motor mechanism, said motor mechanism comprising a rod (6) at the end of which is mounted said piston (5), said piston (5) being crossed, from its face (10 ) closest to the product (P) on its face opposite the elements of the motor mechanism, by at least one channel (11). The edges of the dispensing orifice (4) are covered, at least partially, with a layer (8), which serves for the application of the product (P) and is made of a breathable material, said layer (8) being positioned astride said edges.

Description

La présente invention est relative à un dis­tributeur d'un produit pâteux ou solide, par exemple, d'un produit cosmétique destiné à être étalé. En par­ticulier, ce distributeur est du type comportant un réservoir et un piston translatable en avance lente dans ce réservoir, afin d'éjecter hors de celui-ci le produit, et ce, grâce à un mécanisme-moteur commandé manuellement. Ce distributeur peut être aussi bien utilisé pour des produits coulés, comme du rouge à lèvres, que pour des produits extrudés, comme du fond de teint, ou des produits compactés, comme du fard à paupières.The present invention relates to a dispenser of a pasty or solid product, for example, of a cosmetic product intended to be spread. In particular, this dispenser is of the type comprising a reservoir and a translatable piston in slow advance in this reservoir, in order to eject the product out of it, and this, thanks to a manually controlled motor mechanism. This dispenser can be used for poured products, such as lipstick, as well as for extruded products, such as foundation, or compacted products, such as eyeshadow.

De tels distributeurs sont déjà connus et, depuis longtemps, à la disposition des consommateurs. Le piston, qui entraîne en translation le produit à éjecter, est généralement monté en bout d'un tige filetée, qui coopère avec un écrou solidaire du dis­tributeur. Cette tige est elle-même entraînée en rota­tion pas à pas, par l'intermédiaire d'un bouton-­poussoir actionné par l'utilisateur (voir, par exem­ple, le brevet francais 2 555 471 et la demande de brevet français 88-05026 déposée le 15 Avril 1988).Such distributors are already known and have long been available to consumers. The piston, which drives the product to be ejected in translation, is generally mounted at the end of a threaded rod, which cooperates with a nut secured to the dispenser. This rod is itself rotated step by step, by means of a push button actuated by the user (see, for example, French patent 2,555,471 and French patent application 88-05026 filed April 15, 1988).

Le remplissage d'un tel distributeur pose, actuellement, des problèmes de réalisation. La partie du distributeur comportant le mécanisme-moteur est d'un prix de revient relativement élevé. Afin d'éviter qu'une fausse manoeuvre de remplissage ne la rende inutilisable, et donc invendable, on la sépare, généralement, de la partie-réservoir au moment de son remplissage. Ces deux parties du distributeur sont assemblées ultérieurement. C'est à l'assemblage qu'intervient la difficulté et, notamment, lorsqu'il faut enfiler le piston porté par la tige dans le tube du réservoir. Lorsqu'on engage le piston à l'extrémité arrière du réservoir, la couche d'air comprise entre l'extrémité du produit et la face du piston en regard se trouve emprisonnée. Si l'on veut chasser cette couche d'air du réservoir par les inter­stices existant entre le piston et la paroi du réservoir, il faut fournir un effort important sur ce piston et l'on risque d'endommager le distributeur et d'écraser le produit. De plus, s'il reste une couche d'air entre le produit et le piston, l'action de ce dernier sera nécessairement amortie et sa réponse aux stimulations manuelles de l'utilisateur se trouvera déformée. En outre, s'il s'agit d'un produit cosmétique, celui-ci, en contact avec l'air enfermé, a souvent tendance à s'altérer.The filling of such a dispenser currently poses production problems. The part of the distributor comprising the motor mechanism has a relatively high cost price. In order to prevent a false filling operation from rendering it unusable, and therefore unsaleable, it is generally separated from the tank part when it is filled. These two parts of the dispenser are assembled later. It is at assembly that the difficulty comes into play and, in particular, when it is necessary to thread the piston carried by the rod into the reservoir tube. When the piston is engaged at the rear end of the tank, the layer of air between the end of the product and the face of the piston opposite is trapped. If you want to expel this layer of air from the tank through the interstices between the piston and the wall of the tank, you have to put a lot of force on this piston and you risk damaging the distributor and crushing the product. In addition, if there is a layer of air between the product and the piston, the action of the latter will necessarily be damped and its response to manual stimulation of the user will be distorted. In addition, if it is a cosmetic product, it, in contact with the enclosed air, often tends to deteriorate.

La présente invention propose un dispositif permettant de pallier ces inconvénients. Elle propose, notamment, d'utiliser un piston, qui est une pièce distincte de la vis avec laquelle il coopère, et, qui est traversé par un canal permettant, au moment du montage, l'évacuation de l'air compris entre le pro­duit et le piston. Une fois le produit en place dans le réservoir, ce piston est enfilé dans le tube du réservoir jusqu'au produit, l'air compris entre le produit et le piston s'échappant par ce canal. Le pis­ton est ainsi directement en prise sur le produit. On vient ensuite placer la partie du distributeur compor­tant le mécanisme moteur sur le réservoir. Si le réservoir n'est pas interchangeable, le mécanisme-­moteur peut ne pas être débrayable. Dans ce cas, ini­tialement, la tige est en position de rétractation maximum et on l'amène au contact du piston en faisant fonctionner plusieurs fois le mécanisme-moteur pour atteindre l'amorçage de la distribution. Mais si, au contraire, le réservoir est interchangeable, la tige doit pouvoir être débrayée du mécanisme-moteur, car, à la fin de la distribution afférente à un réservoir, la tige est en position de saillie maximum et doit pouvoir revenir pour le réservoir neuf, au voisinage de sa position de rétraction maximum. Dans un tel cas, au cours de la mise en place d'un réservoir neuf, la tige recule par appui contre le piston contenu dans le réservoir et ce jusqu'à la fixation du réservoir ; il en résulte que la distribution peut commencer sans manoeuvre d'amorçage puisque la tige est au contact du piston par la mise en place même du nouveau réservoir.The present invention provides a device for overcoming these drawbacks. It proposes, in particular, to use a piston, which is a separate part from the screw with which it cooperates, and which is traversed by a channel allowing, at the time of assembly, the evacuation of the air comprised between the product. and the piston. Once the product is in place in the tank, this piston is threaded through the tank tube to the product, the air between the product and the piston escaping through this channel. The piston is thus directly engaged on the product. We then place the part of the distributor with the motor mechanism on the tank. If the tank is not interchangeable, the motor mechanism may not be disengageable. In this case, initially, the rod is in the maximum retraction position and it is brought into contact with the piston by operating the motor mechanism several times to reach priming of the distribution. But if, on the contrary, the reservoir is interchangeable, the rod must be able to be disengaged from the motor mechanism, because, at the end of the distribution relating to a reservoir, the rod is in the maximum projecting position and must be able to return to the new tank, in the vicinity of its maximum retraction position. In such a case, during the installation of a new tank, the rod moves back by pressing against the piston contained in the tank and this until the tank is fixed; it follows that the distribution can begin without priming maneuver since the rod is in contact with the piston by the very establishment of the new reservoir.

L'invention a donc pour objet un distribu­teur de produit solide ou pâteux à étaler, ledit pro­duit étant contenu dans un réservoir et délivré grâce à un mécanisme-moteur commandé manuellement par l'utilisateur, ledit réservoir étant un tube, dont l'intérieur est cylindrique et d'une section quel­conque, tube qui comporte un orifice de distribution et dans lequel ledit produit est disposé entre ledit orifice de distribution et un piston déplaçable, à avance lente, la translation du piston étant obtenue au moyen du mécanisme-moteur, ledit mécanisme-moteur comportant une tige en bout de laquelle est monté ledit piston, caractérisé par le fait que le piston est traversé, de sa face la plus proche du produit à sa face en regard des éléments du mécanisme-moteur, par au moins un canal.The invention therefore relates to a distributor of solid or pasty product to spread, said product being contained in a reservoir and delivered by means of a motor mechanism controlled manually by the user, said reservoir being a tube, the interior of which is cylindrical and of any section, tube which has a dispensing orifice and in which the said product is disposed between the said dispensing orifice and a displaceable piston, slowly advancing, the translation of the piston being obtained by means of the motor mechanism, the said motor mechanism comprising a rod at the end of which said piston is mounted, characterized in that the piston is crossed, from its face closest to the product to its face opposite the elements of the motor mechanism, by at least one channel .

Avantageusement, un canal est situé dans le prolongement axial de la tige et le piston et la tige sont deux pièces distinctes, le tête de la tige s'appuyant sur une surface du piston pour le pousser en translation. L'extrémité de la tête de la tige porte un pointeau, dont l'extrémité libre est conformée sensiblement coniquement, la surface du pis­ton avec laquelle elle coopère ayant une forme conique correspondant à celle de l'extrémité du pointeau. La surface du piston conformée sensiblement en cône peut être prolongée par un alésage cylindrique de guidage. Le pointeau peut comporter, au voisinage de son extrémité qui s'assemble sur la tige, un plateau per­pendiculaire à l'axe de la tige.Advantageously, a channel is located in the axial extension of the rod and the piston and the rod are two separate parts, the head of the rod resting on a surface of the piston to push it in translation. The end of the head of the rod carries a needle, the free end of which is shaped substantially conically, the surface of the piston with which it cooperates having a conical shape corresponding to that of the end of the needle. The surface of the piston substantially shaped like a cone can be extended by a cylindrical guide bore. The needle may include, in the vicinity of its end which is assembled on the rod, a plate perpendicular to the axis of the rod.

De préférence, la paroi périphérique du pis­ton est munie d'au moins une lèvre annulaire, en con­tact, avec un léger serrage, avec la paroi intérieure dudit réservoir. Le piston peut comporter au moins une lèvre annulaire vers chacune de ses faces d'extrémités.Preferably, the peripheral wall of the piston is provided with at least one annular lip, in contact, with a slight tightening, with the internal wall of said reservoir. The piston can comprise at least one annular lip towards each of its end faces.

Avantageusement, les bords de l'orifice de distribution sont recouverts, au moins partiellement, d'un couche, qui sert à l'application du produit et qui est réalisée en un matériau perméable à l'air, ladite couche étant positionnée à cheval sur lesdits bords. Ce matériau peut être poreux et spongieux. Cette couche d'application peut être un floc ou une mousse synthétique à cellules ouvertes ou fermées. Si elle est un floc, celui-ci peut être collé ou déposé par un procédé électrostatique sur les bords de l'orifice de distribution.Advantageously, the edges of the dispensing orifice are covered, at least partially, with a layer, which is used for applying the product and which is made of a breathable material, said layer being positioned astride said edges. This material can be porous and spongy. This application layer can be a flock or a synthetic foam with open or closed cells. If it is a flock, it can be bonded or deposited by an electrostatic process on the edges of the dispensing orifice.

De préférence, le bord de l'orifice de dis­tribution est disposé en biais par rapport à l'axe du réservoir. Le réservoir est emboîte à l'intérieur d'un embout tubulaire auquel il est associé, sa paroi extérieure et la paroi intérieure de l'embout étant chacune munies d'une rampe hélicoïdale, lesdites rampes hélicoïdales coopérant pour maintenir ledit réservoir en position angulaire déterminée par rapport audit embout. Le réservoir est amovible par rapport au mécanisme-moteur et la tige peut être débrayée du mécanisme-moteur au moment où l'on assemble le réservoir sur ledit mécanisme-moteur. La tige est une vis entraînée en rotation par le mécanisme-moteur et coopérant avec un écrou fixe par rapport à l'embout, l'écrou étant fendu selon une génératrice, l'extrémité du réservoir opposée à l'orifice de distribution dudit réservoir s'emboîtant par emmanchement cônique sur les parois extérieures de l'écrou.Preferably, the edge of the dispensing orifice is disposed at an angle relative to the axis of the reservoir. The reservoir is fitted inside a tubular end-piece with which it is associated, its external wall and the internal wall of the end-piece each being provided with a helical ramp, said helical ramps cooperating to maintain said reservoir in determined angular position. with respect to said tip. The reservoir is removable with respect to the motor mechanism and the rod can be disengaged from the motor mechanism when the reservoir is assembled on said motor mechanism. The rod is a screw driven in rotation by the motor mechanism and cooperating with a nut fixed relative to the end piece, the nut being split along a generator, the end of the reservoir opposite to the dispensing orifice of said reservoir s '' fitting by conical fitting on outer walls of the nut.

Pour mieux faire comprendre l'objet de l'invention, on va décrire maintenant, à titre pure­ment illustratif et non limitatif, un mode de réalisation représenté sur le dessin annexé.To better understand the object of the invention, we will now describe, purely by way of non-limiting illustration, an embodiment shown in the accompanying drawing.

Sur ce dessin :

  • - la figure 1 est une vue en élévation, par­tiellement en coupe sur un arrachement, d'un distribu­teur conforme à l'invention ;
  • - la figure 2 est une vue en coupe du réservoir et du piston du distributeur de la figure 1, le réservoir étant encastré dans un support, en posi­tion de remplissage ;
  • - la figure 3 est une vue en coupe de l'embout tubulaire du distributeur de la figure 1 ;
  • - la figure 4 est une vue en élévation, par­tiellement en coupe sur un arrachement, d'un réservoir non rempli destiné au distributeur de la figure 1 ;
  • - la figure 5 est une vue en coupe selon la ligne V-V de la figure 6 de l'écrou du distributeur de la figure 1 ;
  • - la figure 6 est une vue en bout de l'écrou du distributeur de la figure 1.
On this drawing :
  • - Figure 1 is an elevational view, partially in section on a cutaway, of a dispenser according to the invention;
  • - Figure 2 is a sectional view of the reservoir and the piston of the dispenser of Figure 1, the reservoir being embedded in a support, in the filling position;
  • - Figure 3 is a sectional view of the tubular end of the dispenser of Figure 1;
  • - Figure 4 is an elevational view, partially in section on a cutaway, of an unfilled tank for the dispenser of Figure 1;
  • - Figure 5 is a sectional view along line VV of Figure 6 of the nut of the dispenser of Figure 1;
  • - Figure 6 is an end view of the nut of the dispenser of Figure 1.

En se référant au dessin, on voit que le distributeur comprend un réservoir 1, qui est monté sur une partie 2 comportant le mécanisme-moteur du distributeur. Ces deux parties du distributeur sont emboîtées et maintenues en place dans un embout tubu­laire 3, qui forme un surcapot constituant le corps du distributeur. Le surcapot 3 est fixé, par exemple par vissage ou encliquetage sur une embase 26 solidaire du mécanisme-moteur.Referring to the drawing, it can be seen that the distributor comprises a reservoir 1, which is mounted on a part 2 comprising the motor mechanism of the distributor. These two parts of the dispenser are fitted and held in place in a tubular end piece 3, which forms an overcap constituting the body of the dispenser. The overcap 3 is fixed, for example by screwing or snapping onto a base 26 secured to the motor mechanism.

Le réservoir 1 est une tube, dont l'intérieur, destiné à contenir un produit P constitué d'une pâte ou d'une poudre compactée, est un cylindre droit de section droite circulaire. Une de ses extrémités est un orifice de distribution 4. Vers son autre extrémité est enfilé le piston 5, qui vient en contact avec le produit P et qui coopère avec le bout d'une vis 6. Le filetage de cette vis 6 coopère avec le filetage d'un écrou 7 du mécanisme-moteur 2, afin d'entraîner le piston 5 en translation selon l'axe du réservoir 1. L'ouverture de distribution 4 du réservoir 1 est en biais par rapport à l'axe de celui-ci, avec une inclinaison de 60° par rapport à un plan orthogonal à l'axe du réservoir. La face extérieure de la paroi du réservoir 1 est légèrement tronconique. Cette paroi extérieure épouse la paroi intérieure de l'embout tubulaire ou surcapot 3, dans laquelle elle est emboîtée ; une partie du réservoir 1, vers l'ouverture de distribution 4, dépasse du sur­capot 3. L'extrémité 9 su surcapot 3, la plus proche de l'ouverture 4, est aussi en biais par rapport à l'axe du réservoir 1 et est parallèle au plan, dans lequel se trouve l'ouverture 4. La paroi du surcapot 3 s'élargit à partir de l'extrémité 9 environ jusqu'au milieu du réservoir 1.The reservoir 1 is a tube, the interior of which, intended to contain a product P consisting of a compacted paste or powder, is a straight cylinder of circular cross section. One of his ends is a dispensing orifice 4. Towards its other end is threaded the piston 5, which comes into contact with the product P and which cooperates with the end of a screw 6. The thread of this screw 6 cooperates with the thread of a nut 7 of the motor mechanism 2, in order to drive the piston 5 in translation along the axis of the reservoir 1. The dispensing opening 4 of the reservoir 1 is at an angle relative to the axis of the latter, with an inclination of 60 ° relative to a plane orthogonal to the axis of the tank. The outer face of the wall of the tank 1 is slightly frustoconical. This outer wall matches the inner wall of the tubular end cap or overcap 3, in which it is fitted; part of the reservoir 1, towards the dispensing opening 4, protrudes from the overcap 3. The end 9 of the overcap 3, closest to the opening 4, is also at an angle relative to the axis of the reservoir 1 and is parallel to the plane, in which the opening 4 is located. The wall of the overcap 3 widens from the end 9 approximately to the middle of the tank 1.

Les bords de l'ouverture de distribution 4 sont revêtus d'une couche de floc 8. Cette couche de floc 8 est positionnée à cheval sur les bords de l'ouverture 4, la surface de floc 8 à l'intérieur du réservoir 1 étant moins importante que la surface de floc à l'extérieur du réservoir 1. L'épaisseur de cette couche de floc 8 est inférieure à 30 % de l'épaisseur du bord de l'ouverture de distribution 4. L'extrémité du floc 8 la plus éloignée de l'ouverture 4, sur la surface extérieure du réservoir 1, est positionnée sur un cercle dans un plan orthogonal à l'axe du réservoir 1. Le flocage est obtenu avant rem­plissage, de façon à éviter du polluer le produit, par dépôt électrostatique de poils, ou par collage de ces poils, sur les parois du réservoir. On peut, pour obtenir un flocage précis à l'intérieur du réservoir 1, utiliser un mandrin (non représenté) enfile en son intérieur, et épousant sensiblement sa paroi intérieure. L'extrémité de ce mandrin la plus proche de l'ouverture 4 est légèrement décalée, dans le réservoir 1, par rapport aux bords de l'ouverture 4, de façon que le floc 8 puisse être déposé sur la paroi intérieure du réservoir 1, sa surface de dépôt étant parfaitement délimitée par le niveau du mandrin. Dans une variante, le floc peut être remplacé par une mousse synthétique, moussée, par exemple, "in situ".The edges of the dispensing opening 4 are coated with a flock layer 8. This flock layer 8 is positioned astride the edges of the opening 4, the flock surface 8 inside the tank 1 being less important than the surface of floc outside the tank 1. The thickness of this layer of floc 8 is less than 30% of the thickness of the edge of the dispensing opening 4. The end of floc 8 la further from the opening 4, on the outer surface of the reservoir 1, is positioned on a circle in a plane orthogonal to the axis of the reservoir 1. The flocking is obtained before filling, so as to avoid polluting the product, by electrostatic deposition of bristles, or by bonding of these bristles, on the walls of the tank. We can, for obtain a precise flocking inside the tank 1, use a mandrel (not shown) threaded inside, and substantially matching its inner wall. The end of this mandrel closest to the opening 4 is slightly offset, in the tank 1, relative to the edges of the opening 4, so that the flock 8 can be deposited on the inside wall of the tank 1, its deposition surface being perfectly delimited by the level of the mandrel. In a variant, the flock can be replaced by a synthetic foam, foamed, for example, "in situ".

Le piston 5 est un élément de révolution. Une de ses faces est un plateau 10 en contact avec le produit P. Ce plateau 10 est traversé par un canal 11 centré axialement et prolongé dans le piston 5, au-­delà du plateau 10, par un évidement conique 12 pra­tiqué dans le corps du piston 5. Cet évidement conique 12 est lui-même prolongé axialement par un alésage 14, qui débouche sur l'autre face du piston 5. Chacune des faces extrêmes du piston 5 est entourée à sa périphérie par une lèvre annulaire 13 destinée à être en contact avec un léger serrage avec la paroi intérieure du réservoir 1. La tête de la vis 6 porte un pointeau 16 dont une extrémité conique 15 est destinée à coopérer avec l'évidement conique 12 du piston 5. Le pointeau 16 est un corps cylindrique dont le diamètre est légèrement inférieur à celui de l'alésage 14 ; il s'emboîte par coulissement dans cet alésage 14. Le pointeau 16 comporte, à son extrémité opposée à la partie conique 15, un plateau 17, qui est un disque en appui sur la tige 6 ; ce disque est de diamètre plus important que les diamètres de la tige 6 et du corps cylindrique du pointeau 16.The piston 5 is an element of revolution. One of its faces is a plate 10 in contact with the product P. This plate 10 is crossed by a channel 11 axially centered and extended in the piston 5, beyond the plate 10, by a conical recess 12 formed in the body of the piston 5. This conical recess 12 is itself extended axially by a bore 14, which opens on the other face of the piston 5. Each of the end faces of the piston 5 is surrounded at its periphery by an annular lip 13 intended to be in contact with a slight tightening with the inner wall of the reservoir 1. The head of the screw 6 carries a needle 16 whose conical end 15 is intended to cooperate with the conical recess 12 of the piston 5. The needle 16 is a cylindrical body whose the diameter is slightly smaller than that of bore 14; it fits by sliding in this bore 14. The needle 16 comprises, at its end opposite to the conical part 15, a plate 17, which is a disc bearing on the rod 6; this disc has a larger diameter than the diameters of the rod 6 and of the cylindrical body of the needle 16.

L'écrou 7 est un écrou fendu compartant trois secteurs 18 répartis symétriquement autour de l'axe de l'écrou 7. Ces trois secteurs 18 sont reliés à une de leur extrémité par une jupe cylindrique 20 prolongeant leurs parois périphériques. Leurs extrémités opposées à cette jupe 20 forment la tête tronconique de l'écrou, qui est traversée axialement par un alésage 19 ayant sensiblement le même diamètre que la vis 6 qui est disposée en son intérieur. L'alésage 19 est fileté à son extrémité opposée à la jupe 20. Son filetage 21 est destiné à coopérer avec celui de la vis 6. La paroi intérieure du réservoir 1 est munie, à son extrémité opposée à l'ouverture de distribution 4, d'une portée 24 conformée tronconique­ment de façon à s'adapter sur la tête de l'écrou 7.The nut 7 is a split nut dividing three sectors 18 distributed symmetrically around the axis of the nut 7. These three sectors 18 are connected at one of their ends by a cylindrical skirt 20 extending their peripheral walls. Their ends opposite this skirt 20 form the frustoconical head of the nut, which is axially traversed by a bore 19 having substantially the same diameter as the screw 6 which is arranged inside. The bore 19 is threaded at its end opposite the skirt 20. Its thread 21 is intended to cooperate with that of the screw 6. The interior wall of the reservoir 1 is provided, at its end opposite to the dispensing opening 4, a seat 24 shaped frusto-conically so as to adapt to the head of the nut 7.

Le surcapot 3 du distributeur et le réservoir 1 sont chacun munis, vers l'extrémité du réservoir 1 opposée à l'ouverture de distribution 4, d'une rampe hélicoïdale (22, 23), la rampe 22 étant disposée sur la paroi extérieure du réservoir 1, la rampe 23 étant disposée sur la paroi intérieure du surcapot 3. Ces deux rampes 22 et 23 sont chacune constituée par un décrochement de la paroi sur laquelle elles sont disposées. De ce fait, la paroi du réservoir 1 est, au niveau de la rampe 22, moins épaisse du côté proche de l'ouverture de distribution 4 que de l'autre côté par rapport à la rampe 22. La paroi du surcapot 3 est au niveau de la rampe 23, plus épaisse dans sa partie la plus proche de l'extrémité ouverte 9 que de l'autre côté par rapport à la rampe 23. Ces deux rampes 22 et 23 sont destinées à coopérer et permettent de positionner angulairement le réservoir 1 et le surcapot 3 de façon que leurs ouver­tures 4 et 9 soient parallèles. En position assemblée, le réservoir 1 est en appui par sa portée tronconique 24 sur les secteurs 18 constituant la tête de l'écrou 7 et sa rampe 22 s'appuie sur la rampe 23 du surcapot. La fixation du surcapot 3 sur l'embase 26 permet ainsi le maintien en position du réservoir 1 et son action sur l'écrou 7 pour refermer les secteurs 18 autour de la vis 6.The overcap 3 of the dispenser and the reservoir 1 are each provided, towards the end of the reservoir 1 opposite the dispensing opening 4, with a helical ramp (22, 23), the ramp 22 being arranged on the outer wall of the tank 1, the ramp 23 being disposed on the inner wall of the overcap 3. These two ramps 22 and 23 are each formed by a recess of the wall on which they are arranged. As a result, the wall of the reservoir 1 is, at the level of the ramp 22, thinner on the side close to the dispensing opening 4 than on the other side with respect to the ramp 22. The wall of the overcap 3 is at level of the ramp 23, thicker in its part closest to the open end 9 than on the other side relative to the ramp 23. These two ramps 22 and 23 are intended to cooperate and allow the tank to be angularly positioned 1 and the overcap 3 so that their openings 4 and 9 are parallel. In the assembled position, the reservoir 1 is supported by its frustoconical bearing 24 on the sectors 18 constituting the head of the nut 7 and its ramp 22 is supported on the ramp 23 of the overcap. The fixing of the overcap 3 on the base 26 thus allows the reservoir 1 to be held in position and its action on the nut 7 to close the sectors 18 around the screw 6.

Le réservoir 1, le surcapot 3, le piston 5 et l'écrou 7 sont des pièces moulées en matière plas­tique. Après avoir obtenu ces différentes pièces, on procède, dans un premier temps, au remplissage du réservoir 1 et, séparément, à l'assemblage des pièces de la partie 2 du distributeur comportant le mécanisme-moteur. Un tel mécanisme-moteur peut être du type de celui qui est décrit dans la demande de brevet déposée en France par la demanderesse sous le numéro 88.05026 ; il comprend, notamment, un ressort R et un bouton-poussoir 25 monté à l'extrémité de l'embase 26, qui est la plus éloignée du réservoir 1 ; l'enfoncement du bouton-poussoir 25 permet de com­mander la translation du piston 5 et le ressort R assure le rappel dudit bouton-poussoir. Dans un deuxième temps, on monte le réservoir 1 sur la partie 2 comportant la mécanisme moteur en emboîtant l'ensemble dans le surcapot 3. L'extrémité du disposi­tif moteur opposée à l'écrou 7 est solidaire de l'embase 26 sur laquelle se fixe l'extrémité du sur­capot 3. Cette embase 26 est vissée sur un filetage intérieur 27, dont est munie l'extrémité correspon­dante du surcapot 3. Dans une variante possible, la fixation s'effectue par encliquetage.The tank 1, the overcap 3, the piston 5 and the nut 7 are molded plastic parts. After obtaining these different parts, we proceed, firstly, to fill the tank 1 and, separately, to assemble the parts of part 2 of the distributor comprising the motor mechanism. Such a motor mechanism can be of the type described in the patent application filed in France by the applicant under the number 88.05026; it comprises, in particular, a spring R and a push button 25 mounted at the end of the base 26, which is the farthest from the tank 1; the depression of the push button 25 makes it possible to control the translation of the piston 5 and the spring R ensures the return of said push button. In a second step, the reservoir 1 is mounted on the part 2 comprising the motor mechanism by fitting the assembly into the overcap 3. The end of the motor device opposite the nut 7 is integral with the base 26 on which is fixes the end of the overcap 3. This base 26 is screwed onto an internal thread 27, which is provided with the corresponding end of the overcap 3. In a possible variant, the fixing is effected by snap-fastening.

Pour remplir le réservoir 1, que ce soit pour y couler, y extruder ou y compacter un produit, on utilise le dispositif de la figure 2. Le réservoir 1 est maintenu verticalement dans un alésage pratiqué dans un support 28, alésage dans lequel son ouverture de distribution 4 est encastrée, la portée conique 24 s'ouvrant vers le haut. Le fond de l'alésage du sup­port 28 est un plan inclinée sur lequel s'appuient les bords de l'ouverture de distribution 4. Sa paroi latérale épouse et serre le floc 8 contre les bords de l'ouverture de distribution 4. Le réservoir 1 et le support 28 forment ainsi, ensemble, un récipient ayant un fond, pouvant retenir des substances liquides ou solides et dans lequel il est possible de couler un produit, par exemple, du rouge à lèvres. Si l'on veut y extruder ou compacter un produit, on introduit le produit P par l'extrémité du réservoir 1 opposée à l'ouverture de distribution 4 et, pour le compactage, on comprime le produit en enfilant à l'intérieur du réservoir un piston compresseur. Dans les deux cas, l'air refoulé vers le fond du récipient est évacué grâce au floc 8, qui est perméable à l'air, ainsi que le montrent les flèches de la figure 2. Le produit P peut ainsi être mis en place sans défaut au niveau de l'ouverture 4.To fill the reservoir 1, whether for pouring, extruding or compacting a product therein, the device of FIG. 2 is used. The reservoir 1 is held vertically in a bore formed in a support 28, a bore in which its opening distribution 4 is embedded, the conical bearing 24 opening upwards. The bottom of the bore of the support 28 is an inclined plane on which the edges of the dispensing opening 4 rest. Its side wall follows and clamps the flock 8 against the edges of the dispensing opening 4. The reservoir 1 and the support 28 thus together form a container having a bottom, capable of retaining liquid or solid substances and into which it is possible to pour a product, for example, lipstick . If you want to extrude or compact a product, you introduce the product P through the end of the reservoir 1 opposite the dispensing opening 4 and, for compacting, you compress the product by threading inside the reservoir a compressor piston. In both cases, the air discharged towards the bottom of the container is evacuated by means of the flock 8, which is permeable to air, as shown by the arrows in FIG. 2. The product P can thus be put in place without opening fault 4.

On enfile ensuite, à l'extrémité opposée à l'ouverture de distribution 4, le piston 5, son pla­teau 10 étant directement en vis à vis du produit P. Le piston 5 coulisse dans le cylindre intérieur du réservoir 1 jusqu'à ce que son plateau 10 se trouve en contact avec le produit P, ce quelque soit le niveau de remplissage du produit P dans le réservoir ; l'air compris entre le plateau 10 et le produit P s'échappe par le canal 11. On positionne ensuite la vis 6 de façon que la partie conique 15 de son pointeau 16 s'encastre dans l'évidement conique 12 du piston 5 après avoir été guidé dans l'alésage cylindrique 14. On assujettit, enfin, l'ensemble formé par l'embase 26 et la partie 2 du distributeur, qui comporte le mécanisme-moteur, en enfilant la vis 6 dans l'alésage 19, jusqu'à ce que les secteurs 18 formant la tête conique de l'écrou 7 s'appuient sur la portée tron­conique 24 du réservoir 1, refermant ainsi le filetage 21 de l'alésage 19 sur le filetage de la vis 6. Une fois l'ensemble ainsi mis en place, il reste à emboîter le réservoir 1 et la partie 2 dans le surcapot 3 et à assurer la fixation du surcapot 3 sur l'embase 26.Then, at the end opposite the dispensing opening 4, the piston 5 is threaded, its plate 10 being directly opposite the product P. The piston 5 slides in the internal cylinder of the reservoir 1 until its plate 10 is in contact with the product P, whatever the level of filling of the product P in the tank; the air between the plate 10 and the product P escapes through the channel 11. The screw 6 is then positioned so that the conical part 15 of its needle 16 is embedded in the conical recess 12 of the piston 5 after have been guided in the cylindrical bore 14. Finally, the assembly formed by the base 26 and the part 2 of the distributor, which includes the motor mechanism, is secured, by threading the screw 6 into the bore 19, up to 'that the sectors 18 forming the conical head of the nut 7 rest on the frustoconical surface 24 of the reservoir 1, thus closing the thread 21 of the bore 19 on the thread of the screw 6. Once the together thus put in place, it remains to fit the reservoir 1 and the part 2 into the overcap 3 and securing the overcap 3 on the base 26.

L'ensemble est alors monté et prêt à servir. En actionnant le bouton-poussoir 25, l'utilisateur libère du réservoir 1 une fine couche de produit P qu'il applique à l'endroit désiré en l'étalant sur la couche de floc 8, qui sert ainsi de tampon applicateur et évite que le produit P ne macule les bords du réservoir 1. Si le produit P est, de plus, un produit cosmétique destiné à être appliqué sur de la peau, la couche de floc 8 présente, en outre, l'avantage d'adoucir le contact entre la peau et le distributeur. Une fois étalé, le produit P ser retrouve sensiblement juste au-dessous de l'extrémité arrondie du floc 8 sur les bords de l'ouverture de distribution 4, mais au­dessus de l'extrémité de la paroi du réservoir 1. On peut aussi associer à l'ouverture de distribution 4 un bouchon (non représenté) permettant d'éviter que le produit P ne sèche ou ne se détériore.The assembly is then assembled and ready to serve. By actuating the push button 25, the user releases from the reservoir 1 a thin layer of product P which he applies at the desired location by spreading it over the layer of flock 8, which thus serves as an applicator pad and prevents the product P does not smudge the edges of the reservoir 1. If the product P is, moreover, a cosmetic product intended to be applied to the skin, the layer of flock 8 has, in addition, the advantage of softening the contact between the skin and the dispenser. Once spread, the product P will be found substantially just below the rounded end of the flock 8 on the edges of the dispensing opening 4, but above the end of the wall of the reservoir 1. It is also possible to associate at the dispensing opening 4 a plug (not shown) making it possible to prevent the product P from drying out or deteriorating.

Enfin, dans le cas où le surcapot 3 a été vissé sur l'embase 26, on pourra, lorsque le produit P dans le réservoir 1 sera totalement utilisé et que l'on désirera le remplacer, dévisser cette embase 26 et dégager la partie 2 comportant le mécanisme-moteur du surcapot 3. Les secteurs 18 de l'écrou 7 n'étant plus en contact avec la portée 24 du réservoir 1, le filetage 21 de l'alésage 19 ne coopère plus avec le filetage de la vis 6 et l'on peut faire glisser libre­ment cette dernière dans l'alésage 19, la plateau 17 de la tête de la vis 6 constituant néanmoins une limi­tation de course. Il est donc possible de remplacer un réservoir 1, plus ou moins usé, par un autre réservoir 1. Un tel dispositif permet donc d'utiliser, avec une même partie 2 servant de mécanisme-moteur, plusieurs réservoirs 1 faisant office de recharges.Finally, in the case where the overcap 3 has been screwed onto the base 26, it will be possible, when the product P in the tank 1 is fully used and we wish to replace it, unscrew this base 26 and release the part 2 comprising the motor mechanism of the overcap 3. The sectors 18 of the nut 7 no longer being in contact with the bearing surface 24 of the reservoir 1, the thread 21 of the bore 19 no longer cooperates with the thread of the screw 6 and the latter can be freely slid into the bore 19, the plate 17 of the head of the screw 6 nevertheless constituting a stroke limitation. It is therefore possible to replace a tank 1, more or less worn, by another tank 1. Such a device therefore makes it possible to use, with the same part 2 serving as the motor mechanism, several tanks 1 acting as refills.

Claims (14)

1 - Distributeur de produit solide ou pâteux à étaler, ledit produit (P) étant contenu dans un réservoir (1) et délivré grâce à un mécanisme-moteur commandé manuellement par l'utilisateur, ledit réservoir (1) étant un tube, dont l'intérieur est cylindrique et de section quelconque, tube qui com­porte un orifice de distribution (4) et dans lequel ledit produit (P) est disposé entre ledit orifice de distribution (4) et un piston (5) déplaçable, à avance lente, la translation du piston (5) étant obtenue au moyen du mécanisme-moteur, ledit mécanisme-moteur com­portante une tige (6) en bout de laquelle est monté ledit piston (5), caractérisé par le fait que le pis­ton (5) est traversé, de sa face (10) la plus proche du produit (P) à sa face en regard des éléments du mécanisme-moteur, par au moins un canal (11) qui est situé dans le prolongement axial de la tige (6), que le piston et la tige sont deux pièces distinctes, la tête (15) de la tige (6) s'appuyant sur une surface (12) du piston (5) dans laquelle s'ouvre le canal (11) pour le pousser en translation.1 - Distributor of solid or pasty product to spread, said product (P) being contained in a reservoir (1) and delivered by means of a motor mechanism controlled manually by the user, said reservoir (1) being a tube, the l interior is cylindrical and of any cross-section, tube which includes a dispensing orifice (4) and in which said product (P) is disposed between said dispensing orifice (4) and a displaceable piston (5), slowly advancing translation of the piston (5) being obtained by means of the motor mechanism, said motor mechanism comprising a rod (6) at the end of which is mounted said piston (5), characterized in that the piston (5) is crossed, from its face (10) closest to the product (P) to its face opposite the elements of the motor mechanism, by at least one channel (11) which is located in the axial extension of the rod (6), that the piston and rod are two separate parts, the head (15) of the rod (6) is supported t on a surface (12) of the piston (5) in which the channel (11) opens to push it in translation. 2 - Distributeur selon la revendication 1, caractérisé par le fait que l'extrémité de la tête de la tige (6) porte un pointeau (16), dont l'extrémité libre est conformée sensiblement coniquement, et que la surface (12) du piston (5) avec laquelle elle coopère, a une forme conique correspondant à celle de l'extrémité du pointeau.2 - Distributor according to claim 1, characterized in that the end of the head of the rod (6) carries a needle (16), the free end of which is shaped substantially conically, and that the surface (12) of the piston (5) with which it cooperates, has a conical shape corresponding to that of the end of the needle. 3 - Distributeur selon la revendication 2, caractérisé par le fait que la surface (12) du piston (5) conformée sensiblement en cône est prolongée par un alésage (14) de guidage.3 - A dispenser according to claim 2, characterized in that the surface (12) of the piston (5) substantially shaped as a cone is extended by a guide bore (14). 4 - Distributeur selon l'une des revendica­tions 2 ou 3, caractérisé par le fait que le pointeau (16) comporte, au voisinage de son extrémité qui s'assemble sur la tige (6), un plateau (17) perpendi­culaire à l'axe de la tige (6).4 - Distributor according to one of claims 2 or 3, characterized in that the needle (16) comprises, in the vicinity of its end which is assembled on the rod (6), a plate (17) perpendicular to the axis of the rod (6). 5 - Distribution selon l'une des revendica­tions 1 à 4, caractérisé par le fait que la paroi périphérique du piston (5) est munie d'au moins une lèvre (13) annulaire, en contact, avec un léger ser­rage, avec la paroi intérieure dudit réservoir (1).5 - Distribution according to one of claims 1 to 4, characterized in that the peripheral wall of the piston (5) is provided with at least one lip (13) annular, in contact, with a slight tightening, with the wall interior of said tank (1). 6 - Distributeur selon la revendication 5, caractérisé par le fait que le piston (5) comporte au moins une lèvre (13) annulaire au voisinage de chacune de ses faces d'extrémité.6 - Distributor according to claim 5, characterized in that the piston (5) has at least one lip (13) annular in the vicinity of each of its end faces. 7 - Distributeur selon l'une des revendica­tions 1 à 6, caractérisé par le fait que les bords de l'orifice de distribution (4) sont recouverts, au moins partiellement, d'une couche (8), qui sert à l'application du produit (P) et est réalisée en un matériau perméable à l'air, ladite couche (8) étant positionnée à cheval sur lesdits bords.7 - Dispenser according to one of claims 1 to 6, characterized in that the edges of the dispensing orifice (4) are covered, at least partially, with a layer (8), which is used for the application of the product (P) and is made of an air permeable material, said layer (8) being positioned astride said edges. 8 - Distributeur selon la revendication 8, caractérisé par le fait que le matériau de la couche (8) servant à l'application est poreux et spongieux.8 - Dispenser according to claim 8, characterized in that the material of the layer (8) used for the application is porous and spongy. 9 - Distributeur selon l'une des revendica­tions 7 ou 8, caractérisé par le fait que la couche (8) d'application est un floc ou une mousse synthétique à cellules ouvertes ou fermées.9 - Dispenser according to one of claims 7 or 8, characterized in that the application layer (8) is a flock or a synthetic foam with open or closed cells. 10 - Distributeur selon la revendication 9, caractérisé par le fait que la couche d'application est un floc collé ou déposé par procédé électrosta­tique sur les bords de l'orifice de distribution (4).10 - Dispenser according to claim 9, characterized in that the application layer is a flock bonded or deposited by electrostatic process on the edges of the dispensing orifice (4). 11 - Distributeur selon l'une des revendica­tions 1 à 10, caractérisé par le fait que le bord de l'orifice de distribution (4) est disposé en biais par rapport à l'axe du réservoir (1).11 - Distributor according to one of claims 1 to 10, characterized in that the edge of the dispensing orifice (4) is disposed at an angle relative to the axis of the reservoir (1). 12 - Distributeur selon l'une des revendica­tions 1 à 11, caractérisé par le fait que le réservoir (1) est emboîté à l'intérieur d'un embout tubulaire (3) auquel il est associé, sa paroi extérieure et la paroi intérieure de l'embout étant chacune munies d'une rampe hélicoidale (22,23), lesdites rampes hélicoidales (22,23) coopérant pour maintenir ledit réservoir (1) en position angulaire déterminée par rapport audit embout (3).12 - Distributor according to one of claims 1 to 11, characterized in that the reservoir (1) is fitted inside a tubular end piece (3) with which it is associated, its outer wall and the inner wall of the endpiece each being provided with a helical ramp (22,23), said helical ramps (22,23) cooperating to maintain said reservoir (1) in angular position determined with respect to said nozzle (3). 13 - Distributeur selon l'une des revendica­tions 1 à 12, caractérisé par le fait que le réservoir (1) est amovible par rapport au mécanisme-moteur et que la tige (6) peut être débrayée du mécanisme-moteur au moment où l'on assemble le réservoir sur ledit mécanisme-moteur.13 - Dispenser according to one of claims 1 to 12, characterized in that the reservoir (1) is removable relative to the motor mechanism and that the rod (6) can be disengaged from the motor mechanism when the the tank is assembled on said motor mechanism. 14 - Distributeur selon la revendication 13, caractérisé par le fait que la tige (6) est une vis entraînée en rotation par le mécanisme-moteur et coopérant avec un écrou (7) fixe par rapport à l'embout (3), l'écrou (7) étant fendu selon une génératrice, l'extrémité (24) du réservoir (1), qui est opposée à l'orifice de distribution (4) dudit réservoir, s'emboîtant par emmanchement conique sur les parois extérieures de l'écrou (7).14 - Distributor according to claim 13, characterized in that the rod (6) is a screw driven in rotation by the motor mechanism and cooperating with a nut (7) fixed relative to the end piece (3), the nut (7) being split along a generator, the end (24) of the tank (1), which is opposite to the dispensing orifice (4) of said tank, fitting by conical fitting onto the outer walls of the nut (7).
EP90400193A 1989-02-07 1990-01-23 Piston-type dispenser for a pasty or solid substance Expired - Lifetime EP0382594B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8901545A FR2642676B1 (en) 1989-02-07 1989-02-07 PISTON DISPENSER FOR PASTY OR SOLID PRODUCT
FR8901545 1989-02-07

Publications (2)

Publication Number Publication Date
EP0382594A1 true EP0382594A1 (en) 1990-08-16
EP0382594B1 EP0382594B1 (en) 1993-04-14

Family

ID=9378541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90400193A Expired - Lifetime EP0382594B1 (en) 1989-02-07 1990-01-23 Piston-type dispenser for a pasty or solid substance

Country Status (7)

Country Link
US (1) US5009534A (en)
EP (1) EP0382594B1 (en)
JP (1) JP2909755B2 (en)
CA (1) CA2009214C (en)
DE (1) DE69001305T2 (en)
ES (1) ES2040065T3 (en)
FR (1) FR2642676B1 (en)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
EP0604793A1 (en) * 1992-12-29 1994-07-06 Schwan-STABILO Schwanhäusser GmbH & Co. Applicator with a refill made of a spreadable substance
EP0629516A1 (en) * 1993-06-18 1994-12-21 PELIKAN GmbH Device for applying stable colour or covering material
FR2752697A1 (en) * 1996-09-02 1998-03-06 Oreal APPLICATOR HOLDER
WO1998010678A1 (en) * 1996-09-16 1998-03-19 The Gillette Company Method of filling dispenser
FR2770107A1 (en) * 1997-10-28 1999-04-30 Risdon Sa Applicator for stick of deodorant

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NL9301019A (en) * 1993-06-11 1995-01-02 Henkel Raycap Produktie Bv Holder for a pen made of spreadable material, such as a glue stick.
KR100238356B1 (en) * 1993-09-08 2000-01-15 호소에이사오 Cartridge-type feeding case for a solid object
JP3317823B2 (en) * 1995-08-11 2002-08-26 株式会社ユニシアジェックス Dosing device
US5765955A (en) * 1996-07-25 1998-06-16 Tokiwa Corporation Stick-shaped cosmetic cartridge and stick-shaped cosmetic extrusion case
US6186686B1 (en) * 1997-07-02 2001-02-13 Henlopen Manufacturing Co., Inc. Applicator for liquid material
DE10054984A1 (en) * 2000-11-07 2002-06-06 Henkel Kgaa Device for receiving and dispensing a spreadable material
DE10111898C2 (en) 2001-03-13 2003-03-20 Henkel Kgaa Device for dispensing a spreadable material
US7309184B2 (en) * 2003-08-15 2007-12-18 Revlon Consumer Products Corporation Dispenser for fluid materials
US7445372B1 (en) 2004-10-01 2008-11-04 Access Business Group International Llc Custom cosmetic mixer
JP4523825B2 (en) * 2004-10-05 2010-08-11 株式会社資生堂 Viscous cosmetic container and method of filling viscous cosmetic container in viscous cosmetic container
FR2882506B1 (en) 2005-02-25 2007-05-18 Oreal MAKE-UP PROCESS USING A VIBRANT APPLICATOR
JP4908047B2 (en) * 2006-04-25 2012-04-04 株式会社トキワ Bar-shaped product extrusion container
FR2945191B1 (en) * 2009-05-06 2011-07-08 Oreal COSMETIC SET OF MAKE-UP AND / OR CARE OF KERATINIC MATERIALS
JP5420984B2 (en) * 2009-06-17 2014-02-19 株式会社コーセー Mold for producing sticky cosmetics and method for producing sticky cosmetics using the same
US9474348B2 (en) * 2013-07-29 2016-10-25 Tokiwa Corporation Applying material extruding container
JP5895257B2 (en) * 2013-07-29 2016-03-30 株式会社トキワ Coating material extrusion container

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FR1193220A (en) * 1957-04-11 1959-10-30 Make-up holders
US3358699A (en) * 1962-10-03 1967-12-19 Bau Robert Gordon Cosmetic storing and dispensing device
FR1458448A (en) * 1965-09-13 1966-03-04 Oreal New process for filling cases or containers containing sticks of solidified substance, and new products for carrying out this process
FR2228452A1 (en) * 1973-05-07 1974-12-06 Applicator Brush Co Inc
FR2476020A1 (en) * 1980-02-18 1981-08-21 Shiseido Co Ltd
GB2144374A (en) * 1983-08-02 1985-03-06 Schwan Stabilo Schwanhaeusser Process of and apparatus for the production of a cosmetic stick
GB2150424A (en) * 1983-11-28 1985-07-03 Pentel Kk A fluid dispenser
WO1986001085A1 (en) * 1984-08-20 1986-02-27 Karin Dahm Stick-type device for applying cosmetic materials
US4664547A (en) * 1985-07-01 1987-05-12 W. Braun Company Product storage container and dispenser

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604793A1 (en) * 1992-12-29 1994-07-06 Schwan-STABILO Schwanhäusser GmbH & Co. Applicator with a refill made of a spreadable substance
EP0629516A1 (en) * 1993-06-18 1994-12-21 PELIKAN GmbH Device for applying stable colour or covering material
FR2752697A1 (en) * 1996-09-02 1998-03-06 Oreal APPLICATOR HOLDER
WO1998009548A1 (en) * 1996-09-02 1998-03-12 L'oreal Applicator-holder
US6071027A (en) * 1996-09-02 2000-06-06 L'oreal Applicator-holder
WO1998010678A1 (en) * 1996-09-16 1998-03-19 The Gillette Company Method of filling dispenser
FR2770107A1 (en) * 1997-10-28 1999-04-30 Risdon Sa Applicator for stick of deodorant

Also Published As

Publication number Publication date
EP0382594B1 (en) 1993-04-14
DE69001305T2 (en) 1993-11-25
FR2642676A1 (en) 1990-08-10
US5009534A (en) 1991-04-23
CA2009214A1 (en) 1990-08-07
JP2909755B2 (en) 1999-06-23
ES2040065T3 (en) 1993-10-01
CA2009214C (en) 1997-07-01
DE69001305D1 (en) 1993-05-19
FR2642676B1 (en) 1991-06-21
JPH0356165A (en) 1991-03-11

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