EP3895580B1 - Mechanism for a container for applying a cosmetic product, container comprising such a mechanism and method for obtaining such a mechanism - Google Patents

Mechanism for a container for applying a cosmetic product, container comprising such a mechanism and method for obtaining such a mechanism Download PDF

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Publication number
EP3895580B1
EP3895580B1 EP21168531.8A EP21168531A EP3895580B1 EP 3895580 B1 EP3895580 B1 EP 3895580B1 EP 21168531 A EP21168531 A EP 21168531A EP 3895580 B1 EP3895580 B1 EP 3895580B1
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EP
European Patent Office
Prior art keywords
sheath
casing
cosmetic product
base
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21168531.8A
Other languages
German (de)
French (fr)
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EP3895580A1 (en
Inventor
Marc Jourdain
Erwan LECHEVILLIER
Renan LEVAILLANT
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.)
Albea Services SAS
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Albea Services SAS
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Publication date
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Publication of EP3895580A1 publication Critical patent/EP3895580A1/en
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Publication of EP3895580B1 publication Critical patent/EP3895580B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/06—Casings wherein movement of the lipstick or like solid is a screwing movement
    • 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
    • A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
    • A45D40/023—Casings wherein movement of the lipstick or like solid is a sliding movement with self-contained covering means
    • 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
    • A45D40/06—Casings wherein movement of the lipstick or like solid is a screwing movement
    • A45D40/065—Casings wherein movement of the lipstick or like solid is a screwing movement with self-contained covering means
    • 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
    • A45D2040/0012—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks with special decorative arrangements or form
    • 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
    • A45D2040/0025—Details of lipstick or like casings
    • 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

Definitions

  • the invention relates to a mechanism for a receptacle for applying a cosmetic product, in particular a lipstick stick, and a receptacle comprising such a mechanism.
  • the invention also relates to a method for obtaining such a mechanism.
  • the receptacles for applying a cosmetic product comprise a mechanism making it possible to move the cosmetic product between a retracted position and an application position in which the cosmetic product is capable of be applied by rubbing.
  • a receptacle is known from the document JP H08 19422 A .
  • the actuation of the mechanism is generally controlled manually by applying a rotational movement to the base of the receptacle, which rotational movement is transmitted to the mechanism to cause the axial displacement of a cup comprising the cosmetic product.
  • This type of mechanism generally comprises at least one envelope, also called a sleeve, fitted onto a sheath participating in the movement of the cosmetic product.
  • the envelope is a visible aesthetic part, since it extends out of the base of the receptacle inside which the rest of the mechanism is housed.
  • the casing and the sheath are made in the form of two separate parts for which it is possible to freely choose the material.
  • the two parts must be integrally connected to each other.
  • a metallic material such as anodized aluminum
  • a plastic material is chosen for the sheath of the mechanism.
  • the metallic material of the casing makes it possible to mount it on the sheath by crimping, punching or gluing, which are techniques with the advantage to simultaneously ensure an axial connection and a connection in rotation between the casing and the sheath.
  • the assembly of the two parts can then be done by tightening but very often this is not sufficient, in particular at the level of the axial connection.
  • Another solution to assemble the two pieces is the technique of gluing.
  • the use of glue induces risks of pollution of the cosmetic product by the glue, the quantity and distribution of which it is difficult to control with great precision during assembly.
  • the object of the invention is in particular to propose a new mechanism design making it possible to solve at least some of the drawbacks of the state of the art while having a connection between the casing and the sheath which is advantageously simple, reliable and economic.
  • the invention also relates to a receptacle for applying a cosmetic product comprising a cap, an actuation base which comprises a mechanism as described below, the actuation base allowing entry and/or exit of the product cosmetic.
  • the cover is made of plastic material chosen from polypropylene and/or polyethylene terephthalate and/or the base is made of plastic material chosen from polypropylene and/or polyethylene terephthalate.
  • the invention finally relates to a method for obtaining a mechanism as described below, comprising a step in which the at least one assembly point is obtained by welding.
  • the welding is obtained by thermal punching.
  • the "axial” direction corresponds to that of main extension of the receptacle, illustrated by the axis A in the figures, and the "radial” direction is orthogonal to the axial direction.
  • outer or outer and inner are used with reference to the radial direction, an outer member being radially farther from axis A than an inner member.
  • FIG. 1 an embodiment of a receptacle 10, also called a case, for a cosmetic product 10.
  • the cosmetic product is a stick 12 of cosmetic product and more particularly, the stick 12 of cosmetic product is a stick of lipstick intended to be applied by rubbing, as a variant a lip care balm.
  • the receptacle 10 comprises at least one cover 14 which is associated with an actuation base 16 having a complementary shape, the base 16 and the cover 14 together defining an external contour of the receptacle 10.
  • the receptacle 10 further comprises a mechanism 20 for dispensing the stick 12 of cosmetic product.
  • the cover 14, the base 16 of the receptacle 10 and the mechanism 20 have a cylindrical shape of circular section.
  • the cover 14 is removable.
  • the cover 14 is capable of occupying at least one open position in which the cover 14 is separated from the base 16 with a view in particular to allowing the application of the cosmetic product and a closed position in which the cover 14 is secured to base 16 ( figure 1 ).
  • the lower part of the cover 14 comprises inside at least one annular bead 18 which is intended to cooperate with an outer cylindrical surface of the mechanism 20.
  • the annular bead 18 keeps the cover 14 in the closed position and contributes to obtaining an airtight closure in order to guarantee good preservation of the stick 12 of cosmetic product, during use of the mechanism 20.
  • the cover 14 comprises a lower edge 19 which is capable of coming into abutment against an upper edge 17 of the base 16 for actuation in the closed position.
  • the base 16 may comprise a shoulder which extends radially at the level of the connection of the upper part of the base 16 with a lower part of larger diameter. The lower edge of the cover 14 is then capable of coming into abutment against said shoulder in the closed position.
  • FIG. 2 An example embodiment of the mechanism 20 is illustrated in picture 2 .
  • the mechanism 20 has a main axis which extends in the axial direction, coinciding with the main axis A of the receptacle 10.
  • the mechanism 20 is intended to be mounted, removably or not, on an actuation base 16, for example the actuation base 16 of the receptacle 10 for cosmetic product described above.
  • the mechanism 20 and its entry and/or exit mechanism for the stick 12 of cosmetic product described below are given by way of non-limiting example only.
  • the mechanism 20 comprises an internal guide 22 whose rotation relative to an external sheath 24 causes an axial movement of a cup 26 carrying the stick 12 of cosmetic product allowing entry and/or release of the stick 12 of cosmetic product.
  • the cup 26 comprises at least one lug (not visible), preferably two diametrically opposed lugs.
  • Each slide 25 advantageously comprises, at each of its upper and lower ends, an angular notch 25a forming an end stop for the lugs of the cup 26.
  • the sheath 24 surrounds the guide 22.
  • the sheath 24 internally comprises two helical grooves 27 with which the free end of the lugs respectively cooperate, each lug radially passing through the associated slideway 25 of the guide 22 to engage in a groove 27.
  • the mechanism 20 again comprises here an envelope 28, also called a sleeve or even a sleeve.
  • the casing 28 surrounds the sheath 24 on the outside. More particularly, the casing 28 almost completely covers the sheath 24, with the exception of a lower section of the sheath 24.
  • the envelope 28 and the sheath 24 are made of plastic material.
  • the plastic material of the casing 28 and the plastic material of the sheath 24 can be chosen from polypropylene and/or polyethylene terephthalate.
  • the envelope 28 and the sheath 24 can be in the same plastic material or in two different plastic materials.
  • the envelope 28 and the sheath 24 are made of the same plastic material.
  • cup 26 and/or guide 22 are also provided in plastic chosen from polypropylene and/or polyethylene terephthalate.
  • all the parts of the mechanism 20 are made of plastic chosen from polypropylene and/or polyethylene terephthalate.
  • the plastic parts can be easily obtained by injection and lead to a light mechanism.
  • plastic materials can be tinted thus guaranteeing the aesthetic quality.
  • plastic materials in particular similar plastic materials for the whole of the mechanism 20 makes it possible to facilitate recycling.
  • polypropylene and polyethylene terephthalate are two plastic materials whose recycling cycle is well known.
  • the cover 14 and/or the base 16 are also made of plastic chosen from polypropylene and/or polyethylene terephthalate.
  • the cover 14 and the base 16 can be in the same plastic material or in two different plastic materials.
  • the cover 14 and the base 16 are made of the same plastic material.
  • the entire receptacle 10, that is to say the entire mechanism 20, as well as the cover 14 and the base 16 are made of plastic chosen from polypropylene and/or polyethylene terephthalate, in particular in the same plastic material.
  • plastic materials in particular similar plastic materials for the assembly of the receptacle 10 makes it easier to obtain parts which can be easily obtained by injection and lead to a light receptacle 10 .
  • the plastics can be tinted and thus guarantee an aesthetic quality.
  • plastic materials in particular similar plastic materials for the whole of the mechanism 20 makes it possible to facilitate recycling.
  • polypropylene and polyethylene terephthalate are two plastic materials whose recycling cycle is well known.
  • the guide 22 comprises a wheel 30.
  • the wheel 30 is located axially at the lower end of the guide 22.
  • the wheel 30 is intended to allow the rotation of the guide 22 causing, depending on the direction of rotation, an axial upward or downward movement of the cup 26 and in doing so of the stick 12 of cosmetic product.
  • the knurl 30 is a separate piece attached to the guide 22.
  • the knurl 30 is made in one piece, with the guide 22 of the mechanism 20
  • the wheel 30 of the mechanism 20 is actuated, after having previously removed the cover 14, via the base 16.
  • the casing 28 and/or the sheath 24 are extended axially beyond the wheel, in order to prevent or at the very least make it difficult to access said wheel 30.
  • Such a configuration makes it possible to limit the actuation of the mechanism 20 by a user even before said mechanism 20 has been associated with the corresponding base 16.
  • the knob 30 and the base 16 must on the one hand be connected axially together and, on the other hand, be connected in rotation to ensure the transmission to the knob 30 of the mechanism 20 of any rotational movement applied to the base. 16.
  • the wheel 30 is thus intended to be connected in rotation with the base 16 when the mechanism 20 is mounted on the base 16.
  • the actuating base 16 comprises fastening means for axially connecting the actuating base 16 with the wheel 30 of the mechanism 20.
  • the fixing means comprise four lugs 32 which extend axially upwards from a lower part of the base 16 for actuation.
  • the four legs 32 of the actuating base 16 are angularly distributed in a regular manner, ie at 90°.
  • the lugs 32 are inserted into a complementary orifice which is formed centrally in the knob 30 of the mechanism 20.
  • the lugs 32 are flexible.
  • each lug 32 is configured to form a hook 34 which cooperates with an upper edge 36 of the orifice of the knob 30 in order to axially block the base 16 for actuation.
  • the fixing lugs 32 make it possible to axially link the actuating base 16 to the wheel 30 of the mechanism 20.
  • the locking in rotation of the wheel 30 and the base is achieved by a complementary notching of the wheel 30 and the lugs 32, that is to say a set of grooves 38 which extend axially, parallel to each other. on an inner surface of the wheel 30 and on the outer surface of the legs 32 of the base 16.
  • the casing 28 and the sheath 24 are integral in rotation and in translation.
  • the casing 28 and the sheath 24 being both made of plastic material, they are fused at at least one point, called assembly point 40.
  • the mechanism 20 comprises two assembly points 40 diametrically opposed.
  • the two assembly points 40 are arranged on a lower portion of the envelope 28 and of the sheath 24 opposite an upper portion comprising an opening 42 through which the cosmetic product can come out.
  • the two assembly points 40 are visible on an outer surface 44 of the envelope 28.
  • each of the assembly points 40 is arranged both on the outer surface 44 of the casing 28 and on an outer surface 46 of the sheath 24.
  • the assembly point 40 is in the form of a hollow triangle having an upper apex 48 (that is to say an apex directed towards the upper portion comprising the opening) rounded.
  • the at least one assembly point 40 is obtained by a method for obtaining it comprising a step in which the at least one assembly point 40 is obtained by welding, such as for example thermal punching.
  • the thermal punching can be obtained by the application, the striking of at least one thermally regulated punch on the external and/or internal surfaces of the casing 28 and/or of the sheath 24.
  • the application time of the punch(es) is defined according to the size of the mechanism 20, the type of plastic material, the thickness of the casing 28 and/or the sheath 24, the final level of fusion between the casing 28 and the sheath 24 desired.
  • the envelope 28 and the sheath 24 are fused by heating and pressure of a zone forming the assembly point 40.
  • the plastic materials of the envelope 28 and of the sheath 24 melt under heat and combine to form the assemblage point 40, particularly once the area has cooled.
  • the pressure exerted during the punching makes it possible to create a mark forming the assembly point 40.
  • the fusion of the envelope 28 and the sheath 24 can be detected by a mixture of the materials of the sheath 24 and the envelope 28.
  • the assembly point 40 may have a difference in color compared to the rest of the envelope 28 and the sheath 24 due to the mixture of the two materials. plastics.
  • the assembly point 40 is thus viewable. This change of color is particularly visible when the assembly point 40 is located on the outer surfaces 44, 46 of the envelope 28 and of the sheath 24. This difference in hue is particularly visible in the zone of the envelope 28 adjacent to the sheath 24 and in the area of sheath 24 adjacent to casing 28.
  • the assembly point 40 can also be viewed by a mark in the form of a hollow left by the punching on the external surface 44 of the envelope 28 and/or on the external surface 46 of the sheath 24.
  • the at least one assembly point 40 can represent a pattern, such as a logo, a letter, a text, or any other suitable pattern.
  • a plurality of assembly points 40 these can be distributed around the periphery of the envelope 28, as shown here with two assembly points 40.
  • the assembly points 40 can also be distributed over the entire height of the envelope 28 (not shown).
  • the distribution can be regular or random.
  • the mechanism 20 may also include a single assembly point 40.
  • the casing 28 is also held on the sheath 24 by means of at least one extra thickness 50 of material located between the sheath 24 and the casing 28 so that the sheath 24 and the casing 28 are integral at least in translation.
  • the casing 28 and the sheath 24 are then force-fitted one on the other, making it possible to improve their retention, in particular against tearing and rotation relative to each other.
  • the use of an extra thickness 50 of material between the casing 28 and the sheath 24, in other words in an internal zone of the mechanism 20 makes it possible to maintain a good visual aesthetic of the mechanism 20.
  • the extra thickness 50 of material can be located on an internal surface 52 of the casing 28 (embodiment shown here) or on the external surface 46 of the sheath 24 (not shown) or even on the internal surface 52 of the envelope 28 and on the outer surface 46 of the sheath 24 (not shown). It may be, for example, a single extra thickness 50 .
  • it is, for example, an extra thickness 50 which extends over the entire periphery of the internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24, such as a bead.
  • the mechanism 20 can also comprise a plurality of extra thicknesses 50 of material distributed over the inner surface 52 of the casing 28 and/or over the outer surface 46 of the sheath 24.
  • the extra thicknesses 50 of materials can be discrete points distributed over the entire internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24.
  • the extra thicknesses 50 of material can also be discrete points distributed over the entire periphery of the internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24, so as to form, for example, a discontinuous bead.
  • They may also be extra thicknesses 50 extending over the entire periphery of the internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24, such as beads.
  • the at least one extra thickness 50 of material is two beads 50 of material arranged on the periphery of the internal surface 52 of the casing 28 at the level of the lower portion of the casing 28 and of the sheath 24 where the two assembly points 40 mentioned above are located.
  • the presence of an extra thickness between the casing and the sheath and/or the fusion between these two parts allows a connection between the casing and the sheath which is advantageously simple, reliable and economical.
  • the assembly of the two parts can be done by tightening but very often this is not sufficient, in particular at the level of the axial connection.
  • Another solution to assemble the two pieces is the technique of gluing.
  • glue when the two parts are assembled by gluing, induces risks of pollution of the cosmetic product by the glue, the quantity and distribution of which it is difficult to control with great precision during assembly.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention concerne un mécanisme pour un réceptacle d'application d'un produit cosmétique, notamment un raisin de rouge à lèvres, et un réceptacle comportant un tel mécanisme.The invention relates to a mechanism for a receptacle for applying a cosmetic product, in particular a lipstick stick, and a receptacle comprising such a mechanism.

L'invention concerne également un procédé d'obtention d'un tel mécanisme.The invention also relates to a method for obtaining such a mechanism.

Arrière-plan techniqueTechnical background

De façon classique, les réceptacles d'application d'un produit cosmétique, notamment un raisin de rouge à lèvres, comprennent un mécanisme permettant de déplacer le produit cosmétique entre une position escamotée et une position d'application dans laquelle le produit cosmétique est susceptible d'être appliqué par frottement. Un tel réceptacle est connu du document JP H08 19422 A .Conventionally, the receptacles for applying a cosmetic product, in particular a stick of lipstick, comprise a mechanism making it possible to move the cosmetic product between a retracted position and an application position in which the cosmetic product is capable of be applied by rubbing. Such a receptacle is known from the document JP H08 19422 A .

L'actionnement du mécanisme est généralement commandé manuellement en appliquant un mouvement de rotation à la base du réceptacle, lequel mouvement de rotation est transmis au mécanisme pour provoquer le déplacement axial d'une cupule comportant le produit cosmétique.The actuation of the mechanism is generally controlled manually by applying a rotational movement to the base of the receptacle, which rotational movement is transmitted to the mechanism to cause the axial displacement of a cup comprising the cosmetic product.

Ce type de mécanisme comporte généralement au moins une enveloppe, appelée aussi manchon, emmanchée sur une gaine participant au déplacement du produit cosmétique. L'enveloppe est une pièce esthétique visible, puisque s'étendant hors de la base du réceptacle à l'intérieur de laquelle le reste du mécanisme est logé.This type of mechanism generally comprises at least one envelope, also called a sleeve, fitted onto a sheath participating in the movement of the cosmetic product. The envelope is a visible aesthetic part, since it extends out of the base of the receptacle inside which the rest of the mechanism is housed.

Classiquement, l'enveloppe et la gaine sont réalisées sous la forme de deux pièces distinctes pour lesquelles il est possible de choisir librement le matériau. Dans une telle conception, les deux pièces doivent être liées solidairement l'une à l'autre.Conventionally, the casing and the sheath are made in the form of two separate parts for which it is possible to freely choose the material. In such a design, the two parts must be integrally connected to each other.

Typiquement un matériau métallique, tel que de l'aluminium anodisé, est choisi pour l'enveloppe et un matériau plastique est choisi pour la gaine du mécanisme.Typically a metallic material, such as anodized aluminum, is chosen for the casing and a plastic material is chosen for the sheath of the mechanism.

La matière métallique de l'enveloppe permet de monter celle-ci sur la gaine par sertissage, poinçonnage ou collage qui sont des techniques ayant l'avantage d'assurer simultanément une liaison axiale et une liaison en rotation entre l'enveloppe et la gaine.The metallic material of the casing makes it possible to mount it on the sheath by crimping, punching or gluing, which are techniques with the advantage to simultaneously ensure an axial connection and a connection in rotation between the casing and the sheath.

En revanche, la présence de deux matériaux différents, métallique et plastique, présente des inconvénients, notamment lors du recyclage où les deux pièces doivent être séparées.On the other hand, the presence of two different materials, metallic and plastic, has drawbacks, in particular during recycling where the two parts must be separated.

Il est aussi possible de réaliser l'enveloppe et la gaine du mécanisme toutes les deux en matière plastique.It is also possible to make the casing and the sheath of the mechanism both of plastic material.

L'assemblage des deux pièces peut alors se faire par serrage mais très souvent cela n'est pas suffisant, notamment au niveau de la liaison axiale.The assembly of the two parts can then be done by tightening but very often this is not sufficient, in particular at the level of the axial connection.

Une autre solution pour assembler les deux pièces est la technique du collage. Cependant, l'utilisation de colle induit des risques de pollution du produit cosmétique par la colle dont il est difficile de maîtriser avec une grande précision la quantité et la répartition lors de l'assemblage.Another solution to assemble the two pieces is the technique of gluing. However, the use of glue induces risks of pollution of the cosmetic product by the glue, the quantity and distribution of which it is difficult to control with great precision during assembly.

Le but de l'invention est notamment de proposer une nouvelle conception de mécanisme permettant de résoudre au moins une partie des inconvénients de l'état de la technique tout en ayant une liaison entre l'enveloppe et la gaine qui soit avantageusement simple, fiable et économique.The object of the invention is in particular to propose a new mechanism design making it possible to solve at least some of the drawbacks of the state of the art while having a connection between the casing and the sheath which is advantageously simple, reliable and economic.

Résumé de l'inventionSummary of the invention

Ainsi, l'invention concerne un mécanisme destiné à être monté sur une base d'actionnement d'un réceptacle d'application d'un produit cosmétique, le mécanisme étant conçu pour faire sortir le produit cosmétique par au moins un mouvement de rotation, caractérisé en ce que ledit mécanisme comporte :

  • au moins une gaine en matière plastique comprenant intérieurement au moins une rainure hélicoïdale ;
  • un guide comprenant une molette destinée à permettre la mise en rotation du guide, la molette étant destinée à être liée en rotation à la base ;
  • une enveloppe en matière plastique extérieure à la gaine, l'enveloppe et la gaine étant fusionnées en au moins un point, dit point d'assemblage, de manière à être solidaires en rotation et en translation. Autrement dit, l'enveloppe et la gaine jusque-là deux pièces distinctes ne forment plus qu'une seule pièce unique et sont reliées, unies de manière définitive au niveau du au moins un point d'assemblage. Cela est notamment permis par un mélange des matières plastiques de l'enveloppe et de la gaine au niveau du point d'assemblage.
Thus, the invention relates to a mechanism intended to be mounted on an actuation base of a receptacle for applying a cosmetic product, the mechanism being designed to cause the cosmetic product to come out by at least one rotational movement, characterized in that said mechanism comprises:
  • at least one plastic sheath comprising internally at least one helical groove;
  • a guide comprising a wheel intended to allow the rotation of the guide, the wheel being intended to be connected in rotation to the base;
  • a plastic casing outside the sheath, the casing and the sheath being fused at at least one point, called assembly point, so as to be integral in rotation and in translation. In other words, the casing and the sheath, hitherto two distinct parts, no longer form a single single part and are connected, united in a definitive manner at the level of at least one assembly point. This is in particular permitted by a mixture of the plastic materials of the casing and of the sheath at the level of the assembly point.

Selon différents modes de réalisation de l'invention, qui pourront être pris ensemble ou séparément :

  • le guide est entouré par la gaine,
  • le guide comporte des glissières s'étendant axialement de manière rectiligne,
  • l'enveloppe présente une surface externe sur laquelle le au moins point d'assemblage est visible,
  • le mécanisme comprend une pluralité de points d'assemblage,
  • la pluralité de points d'assemblage est répartie sur le pourtour de l'enveloppe,
  • la pluralité de points d'assemblage est régulièrement répartie sur le pourtour de l'enveloppe,
  • la pluralité de points d'assemblage est répartie sur toute la hauteur de l'enveloppe,
  • la pluralité de points d'assemblage est régulièrement répartie sur toute la hauteur de l'enveloppe,
  • le au moins un point d'assemblage est un motif, tel qu'un logo, une lettre, un texte,
  • la gaine comprend intérieurement au moins une rainure hélicoïdale,
  • la matière plastique de l'enveloppe est choisie parmi le polypropylène et/ou le polyéthylène téréphtalate,
  • la matière plastique de la gaine est choisie parmi le polypropylène et/ou le polyéthylène téréphtalate,
  • le mécanisme comprend une cupule portant le bâton de produit cosmétique,
  • le mécanisme comprend un guide entouré par la gaine,
  • la mise en rotation du guide par rapport à la gaine provoque un mouvement axial de la cupule,
  • la cupule est en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate,
  • le guide est en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate,
  • toutes les pièces du mécanisme sont en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate,
  • l'enveloppe est maintenue sur la gaine par l'intermédiaire d'au moins une surépaisseur de matière située entre la gaine et l'enveloppe de manière à ce que la gaine et l'enveloppe soient solidaires au moins en translation,
  • la surépaisseur de matière permet en outre que la gaine et l'enveloppe soient solidaires en rotation,
  • la au moins une surépaisseur de matière est située sur une surface interne de l'enveloppe,
  • la au moins une surépaisseur de matière est située sur une surface externe de la gaine,
  • le mécanisme comprend une pluralité de surépaisseurs de matière réparties sur la surface interne de l'enveloppe,
  • le mécanisme comprend une pluralité de surépaisseurs de matière réparties sur la surface externe de la gaine,
  • la au moins une surépaisseur de matière est un bourrelet de matière agencé sur le pourtour de la surface interne de l'enveloppe,
  • la au moins une surépaisseur de matière est un bourrelet de matière agencé sur le pourtour de la surface externe de la gaine,
  • la au moins une surépaisseur de matière est deux bourrelets de matière agencés sur le pourtour de la surface interne de l'enveloppe,
  • la au moins une surépaisseur de matière est agencée sur une portion inférieure de l'enveloppe et/ou de la gaine opposée à une portion supérieure comprenant une ouverture par laquelle le produit cosmétique peut sortir.
According to different embodiments of the invention, which may be taken together or separately:
  • the guide is surrounded by the sheath,
  • the guide comprises slideways extending axially in a rectilinear manner,
  • the envelope has an outer surface on which the at least assembly point is visible,
  • the mechanism comprises a plurality of assembly points,
  • the plurality of assembly points is distributed around the circumference of the envelope,
  • the plurality of assembly points is regularly distributed around the circumference of the envelope,
  • the plurality of assembly points is distributed over the entire height of the envelope,
  • the plurality of assembly points is regularly distributed over the entire height of the envelope,
  • the at least one assembly point is a pattern, such as a logo, letter, text,
  • the sheath internally comprises at least one helical groove,
  • the plastic material of the envelope is chosen from polypropylene and/or polyethylene terephthalate,
  • the plastic material of the sheath is chosen from polypropylene and/or polyethylene terephthalate,
  • the mechanism comprises a cup carrying the stick of cosmetic product,
  • the mechanism comprises a guide surrounded by the sheath,
  • rotation of the guide relative to the sheath causes axial movement of the cup,
  • the cup is made of plastic chosen from polypropylene and/or polyethylene terephthalate,
  • the guide is made of plastic chosen from polypropylene and/or polyethylene terephthalate,
  • all the parts of the mechanism are made of plastic chosen from polypropylene and/or polyethylene terephthalate,
  • the casing is held on the sheath by means of at least one extra thickness of material located between the sheath and the casing so that the sheath and the casing are integral at least in translation,
  • the additional material thickness also allows the sheath and the casing to be integral in rotation,
  • the at least one extra thickness of material is located on an internal surface of the casing,
  • the at least one extra thickness of material is located on an outer surface of the sheath,
  • the mechanism comprises a plurality of extra thicknesses of material distributed over the internal surface of the casing,
  • the mechanism comprises a plurality of extra thicknesses of material distributed over the outer surface of the sheath,
  • the at least one extra thickness of material is a bead of material arranged around the periphery of the internal surface of the casing,
  • the at least one extra thickness of material is a bead of material arranged around the periphery of the outer surface of the sheath,
  • the at least one extra thickness of material is two beads of material arranged around the periphery of the internal surface of the casing,
  • the at least one extra thickness of material is arranged on a lower portion of the envelope and/or of the sheath opposite an upper portion comprising an opening through which the cosmetic product can come out.

L'invention concerne aussi un réceptacle d'application d'un produit cosmétique comportant un capot, une base d'actionnement qui comporte un mécanisme tel que décrit ci-dessous, la base d'actionnement permettant une entrée et/ou une sortie du produit cosmétique.The invention also relates to a receptacle for applying a cosmetic product comprising a cap, an actuation base which comprises a mechanism as described below, the actuation base allowing entry and/or exit of the product cosmetic.

De façon avantageuse, le capot est en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate et/ou la base est en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate.Advantageously, the cover is made of plastic material chosen from polypropylene and/or polyethylene terephthalate and/or the base is made of plastic material chosen from polypropylene and/or polyethylene terephthalate.

L'invention concerne enfin un procédé d'obtention d'un mécanisme tel que décrit ci-dessous, comprenant une étape dans laquelle le au moins un point d'assemblage est obtenu par soudage.The invention finally relates to a method for obtaining a mechanism as described below, comprising a step in which the at least one assembly point is obtained by welding.

Avantageusement, le soudage est obtenu par poinçonnage thermique.Advantageously, the welding is obtained by thermal punching.

Brève description des figuresBrief description of figures

L'invention sera mieux comprise, et d'autres caractéristiques et avantages de celle-ci apparaîtront au cours de la lecture de la description détaillée qui va suivre, d'au moins un mode de réalisation de l'invention donné à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés dans lesquels :

  • [Fig.1] la figure 1 est une vue en coupe axiale qui représente un réceptacle après montage d'un mécanisme selon l'invention sur une base d'actionnement du réceptacle ;
  • [Fig.2] la figure 2 est une vue en coupe axiale qui représente le mécanisme de la figure 1 ;
  • [Fig.3] la figure 3 est une vue en perspective d'un ensemble d'une gaine et d'une enveloppe composant le mécanisme de la figure 2 ;
  • [Fig.4] la figure 4 est une vue en coupe axiale de l'ensemble de la figure 3 ;
  • [Fig.5] la figure 5 est une vue en grossissement de la figure 4 ;
  • [Fig.6] la figure 6 est une vue en perspective de l'enveloppe de l'ensemble de la figure 2.
The invention will be better understood, and other characteristics and advantages thereof will appear during the reading of the detailed description which will follow, of at least one embodiment of the invention given by way of example. purely illustrative and not limiting, with reference to the attached schematic drawings in which:
  • [ Fig.1 ] there figure 1 is an axial sectional view showing a receptacle after mounting a mechanism according to the invention on an actuation base of the receptacle;
  • [ Fig.2 ] there picture 2 is an axial sectional view showing the mechanism of the figure 1 ;
  • [ Fig.3 ] there picture 3 is a perspective view of an assembly of a sheath and an envelope making up the mechanism of the figure 2 ;
  • [ Fig.4 ] there figure 4 is an axial sectional view of the entire picture 3 ;
  • [ Fig.5 ] there figure 5 is an enlarged view of the figure 4 ;
  • [ Fig.6 ] there figure 6 is a perspective view of the envelope of the entire figure 2 .

Description détaillée de l'inventionDetailed description of the invention

Par convention, la direction « axiale » correspond à celle d'extension principale du réceptacle, illustré par l'axe A sur les figures et la direction « radiale » est orthogonale à la direction axiale.By convention, the "axial" direction corresponds to that of main extension of the receptacle, illustrated by the axis A in the figures, and the "radial" direction is orthogonal to the axial direction.

Dans la description détaillée des figures qui suit, on utilisera de manière non limitative les termes « supérieur » et « inférieur » ou encore « haut » et « bas » en référence à la direction axiale.In the detailed description of the figures which follows, the terms “upper” and “lower” or even “top” and “bottom” will be used in a non-limiting manner with reference to the axial direction.

De la même manière, les termes « extérieur ou externe » et « intérieur ou interne » sont utilisés en référence à la direction radiale, un élément extérieur étant radialement plus éloigné de l'axe A qu'un élément intérieur.Similarly, the terms “outer or outer” and “inner or inner” are used with reference to the radial direction, an outer member being radially farther from axis A than an inner member.

Dans la suite de la description, des éléments présentant une structure identique ou des fonctions analogues seront désignés par des mêmes références.In the remainder of the description, elements having an identical structure or analogous functions will be designated by the same references.

On a représenté sur la figure 1, un exemple de réalisation d'un réceptacle 10, appelé aussi étui, d'un produit cosmétique 10.We represented on the figure 1 , an embodiment of a receptacle 10, also called a case, for a cosmetic product 10.

Dans l'exemple de réalisation, le produit cosmétique est un bâton 12 de produit cosmétique et plus particulièrement, le bâton 12 de produit cosmétique est un bâton de rouge à lèvres destiné à être appliqué par frottement, en variante un baume de soin labial.In the exemplary embodiment, the cosmetic product is a stick 12 of cosmetic product and more particularly, the stick 12 of cosmetic product is a stick of lipstick intended to be applied by rubbing, as a variant a lip care balm.

Le réceptacle 10 comprend au moins un capot 14 qui est associé à une base 16 d'actionnement présentant une forme complémentaire, la base 16 et le capot 14 définissant ensemble un contour externe du réceptacle 10.The receptacle 10 comprises at least one cover 14 which is associated with an actuation base 16 having a complementary shape, the base 16 and the cover 14 together defining an external contour of the receptacle 10.

Le réceptacle 10 comporte en outre un mécanisme 20 pour la distribution du bâton 12 de produit cosmétique.The receptacle 10 further comprises a mechanism 20 for dispensing the stick 12 of cosmetic product.

De manière non limitative, le capot 14, la base 16 du réceptacle 10 et le mécanisme 20 présentent une forme cylindrique de section circulaire.In a non-limiting way, the cover 14, the base 16 of the receptacle 10 and the mechanism 20 have a cylindrical shape of circular section.

De préférence, le capot 14 est amovible. Le capot 14 est susceptible d'occuper au moins une position d'ouverture dans laquelle le capot 14 est séparé de la base 16 en vue notamment de permettre l'application du produit cosmétique et une position de fermeture dans laquelle le capot 14 est solidaire de la base 16 (figure 1).Preferably, the cover 14 is removable. The cover 14 is capable of occupying at least one open position in which the cover 14 is separated from the base 16 with a view in particular to allowing the application of the cosmetic product and a closed position in which the cover 14 is secured to base 16 ( figure 1 ).

La partie inférieure du capot 14 comprend à l'intérieur au moins un bourrelet 18 annulaire qui est destiné à coopérer avec une surface cylindrique externe du mécanisme 20.The lower part of the cover 14 comprises inside at least one annular bead 18 which is intended to cooperate with an outer cylindrical surface of the mechanism 20.

Avantageusement, le bourrelet 18 annulaire assure le maintien du capot 14 en position de fermeture et participe à l'obtention d'une fermeture étanche à l'air afin de garantir une bonne conservation du bâton 12 de produit cosmétique, en cours d'utilisation du mécanisme 20.Advantageously, the annular bead 18 keeps the cover 14 in the closed position and contributes to obtaining an airtight closure in order to guarantee good preservation of the stick 12 of cosmetic product, during use of the mechanism 20.

Le capot 14 comprend un bord 19 inférieur qui est susceptible de venir en butée contre un bord supérieur 17 de la base 16 d'actionnement en position de fermeture.The cover 14 comprises a lower edge 19 which is capable of coming into abutment against an upper edge 17 of the base 16 for actuation in the closed position.

Dans un mode de réalisation, non représenté, la base 16 peut comprendre un épaulement qui s'étend radialement au niveau du raccordement de la partie supérieure de la base 16 avec une partie inférieure de plus grand diamètre. Le bord inférieur du capot 14 est alors susceptible de venir en butée contre ledit épaulement en position de fermeture.In one embodiment, not shown, the base 16 may comprise a shoulder which extends radially at the level of the connection of the upper part of the base 16 with a lower part of larger diameter. The lower edge of the cover 14 is then capable of coming into abutment against said shoulder in the closed position.

Un exemple de réalisation du mécanisme 20 est illustré à la figure 2.An example embodiment of the mechanism 20 is illustrated in picture 2 .

Le mécanisme 20 présente un axe principal qui s'étend selon la direction axiale, confondu avec l'axe A principal du réceptacle 10.The mechanism 20 has a main axis which extends in the axial direction, coinciding with the main axis A of the receptacle 10.

Le mécanisme 20 est destiné à être monté amovible ou non sur une base 16 d'actionnement, par exemple la base 16 d'actionnement du réceptacle 10 pour produit cosmétique décrit ci-dessus.The mechanism 20 is intended to be mounted, removably or not, on an actuation base 16, for example the actuation base 16 of the receptacle 10 for cosmetic product described above.

Dans le cas d'un mécanisme 20 amovible, celui-ci est destiné à pouvoir être changé, notamment mais non exclusivement après l'utilisation complète du bâton 12 de produit cosmétique.In the case of a removable mechanism 20, it is intended to be able to be changed, in particular but not exclusively after the complete use of the stick 12 of cosmetic product.

Le mécanisme 20 et son mécanisme d'entrée et/ou de sortie du bâton 12 de produit cosmétique décrits ci-dessous ne sont donnés qu'à titre d'exemple non limitatif.The mechanism 20 and its entry and/or exit mechanism for the stick 12 of cosmetic product described below are given by way of non-limiting example only.

Dans l'exemple de réalisation, le mécanisme 20 comprend un guide 22 interne dont la mise en rotation par rapport à une gaine 24 externe provoque un mouvement axial d'une cupule 26 portant le bâton 12 de produit cosmétique permettant une entrée et/ou une sortie du bâton 12 de produit cosmétique.In the exemplary embodiment, the mechanism 20 comprises an internal guide 22 whose rotation relative to an external sheath 24 causes an axial movement of a cup 26 carrying the stick 12 of cosmetic product allowing entry and/or release of the stick 12 of cosmetic product.

La cupule 26 comprend au moins un ergot (non visible), de préférence deux ergots diamétralement opposés.The cup 26 comprises at least one lug (not visible), preferably two diametrically opposed lugs.

Les ergots coopèrent respectivement avec des glissières 25 du guide 22, lesdites glissières 25 s'étendant axialement de manière rectiligne. Chaque glissière 25 comprend avantageusement, à chacune de ses extrémités supérieure et inférieure, une échancrure angulaire 25a formant une butée de fin de course pour les ergots de la cupule 26.The lugs cooperate respectively with slideways 25 of guide 22, said slideways 25 extending axially in a rectilinear manner. Each slide 25 advantageously comprises, at each of its upper and lower ends, an angular notch 25a forming an end stop for the lugs of the cup 26.

La gaine 24 entoure le guide 22. La gaine 24 comprend intérieurement deux rainures 27 hélicoïdales avec lesquelles coopèrent respectivement l'extrémité libre des ergots, chaque ergot traversant radialement la glissière 25 associée du guide 22 pour s'engager dans une rainure 27.The sheath 24 surrounds the guide 22. The sheath 24 internally comprises two helical grooves 27 with which the free end of the lugs respectively cooperate, each lug radially passing through the associated slideway 25 of the guide 22 to engage in a groove 27.

Le mécanisme 20 comprend encore ici une enveloppe 28, appelée aussi manchon ou encore chemise. Comme représenté à la figure 2, l'enveloppe 28 entoure extérieurement la gaine 24. Plus particulièrement, l'enveloppe 28 recouvre presque totalement la gaine 24, à l'exception d'un tronçon inférieur de la gaine 24.The mechanism 20 again comprises here an envelope 28, also called a sleeve or even a sleeve. As depicted at picture 2 , the casing 28 surrounds the sheath 24 on the outside. More particularly, the casing 28 almost completely covers the sheath 24, with the exception of a lower section of the sheath 24.

Selon l'invention, l'enveloppe 28 et la gaine 24 sont en matière plastique.According to the invention, the envelope 28 and the sheath 24 are made of plastic material.

La matière plastique de l'enveloppe 28 et la matière plastique de la gaine 24 peuvent être choisies parmi le polypropylène et/ou le polyéthylène téréphtalate.The plastic material of the casing 28 and the plastic material of the sheath 24 can be chosen from polypropylene and/or polyethylene terephthalate.

L'enveloppe 28 et la gaine 24 peuvent être dans la même matière plastique ou dans deux matières plastiques différentes. De préférence, l'enveloppe 28 et la gaine 24 sont dans la même matière plastique.The envelope 28 and the sheath 24 can be in the same plastic material or in two different plastic materials. Preferably, the envelope 28 and the sheath 24 are made of the same plastic material.

De façon avantageuse, la cupule 26 et/ou le guide 22 sont aussi prévues en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate.Advantageously, cup 26 and/or guide 22 are also provided in plastic chosen from polypropylene and/or polyethylene terephthalate.

Ainsi, de façon avantageuse, toutes les pièces du mécanisme 20 sont en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate.Thus, advantageously, all the parts of the mechanism 20 are made of plastic chosen from polypropylene and/or polyethylene terephthalate.

Les pièces en matière plastique peuvent être facilement obtenues par injection et conduisent à un mécanisme 20 léger.The plastic parts can be easily obtained by injection and lead to a light mechanism.

De plus, les matières plastiques peuvent être teintées garantissant ainsi la qualité esthétique.In addition, the plastic materials can be tinted thus guaranteeing the aesthetic quality.

Par ailleurs, l'utilisation de matières plastiques, en particulier de matières plastiques similaires pour l'ensemble du mécanisme 20 permet de faciliter le recyclage. En particulier, le polypropylène et le polyéthylène téréphtalate sont deux matières plastiques dont le cycle de recyclage est bien connu.Furthermore, the use of plastic materials, in particular similar plastic materials for the whole of the mechanism 20 makes it possible to facilitate recycling. In particular, polypropylene and polyethylene terephthalate are two plastic materials whose recycling cycle is well known.

De façon avantageuse, le capot 14 et/ou la base 16 sont aussi en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate. Le capot 14 et la base 16 peuvent être dans la même matière plastique ou dans deux matières plastiques différentes. De préférence, le capot 14 et la base 16 sont dans la même matière plastique.Advantageously, the cover 14 and/or the base 16 are also made of plastic chosen from polypropylene and/or polyethylene terephthalate. The cover 14 and the base 16 can be in the same plastic material or in two different plastic materials. Preferably, the cover 14 and the base 16 are made of the same plastic material.

De façon avantageuse, l'ensemble du réceptacle 10 c'est-à-dire l'ensemble du mécanisme 20, ainsi que le capot 14 et la base 16 sont en matière plastique choisie parmi le polypropylène et/ou le polyéthylène téréphtalate, notamment dans la même matière plastique.Advantageously, the entire receptacle 10, that is to say the entire mechanism 20, as well as the cover 14 and the base 16 are made of plastic chosen from polypropylene and/or polyethylene terephthalate, in particular in the same plastic material.

Là encore, l'utilisation de matières plastiques, en particulier de matières plastiques similaires pour l'ensemble du réceptacle 10 permet de faciliter l'obtention des pièces qui peuvent être facilement obtenues par injection et conduisent à un réceptacle 10 léger.Here again, the use of plastic materials, in particular similar plastic materials for the assembly of the receptacle 10 makes it easier to obtain parts which can be easily obtained by injection and lead to a light receptacle 10 .

De plus, les matières plastiques peuvent être teintées et garantissent ainsi une qualité esthétique.In addition, the plastics can be tinted and thus guarantee an aesthetic quality.

Par ailleurs, l'utilisation de matières plastiques, en particulier de matières plastiques similaires pour l'ensemble du mécanisme 20 permet de faciliter le recyclage. En particulier, le polypropylène et le polyéthylène téréphtalate sont deux matières plastiques dont le cycle de recyclage est bien connu.Furthermore, the use of plastic materials, in particular similar plastic materials for the whole of the mechanism 20 makes it possible to facilitate recycling. In particular, polypropylene and polyethylene terephthalate are two plastic materials whose recycling cycle is well known.

Le guide 22 comprend une molette 30. La molette 30 est située axialement à l'extrémité inférieure du guide 22.The guide 22 comprises a wheel 30. The wheel 30 is located axially at the lower end of the guide 22.

La molette 30 est destinée à permettre la mise en rotation du guide 22 provoquant, selon le sens de rotation, un mouvement axial de montée ou de descente de la cupule 26 et ce faisant du bâton 12 de produit cosmétique. Dans ce mode de réalisation, la molette 30 est une pièce distincte rapportée à fixation sur le guide 22. En variante, la molette 30 est réalisée venue de matière, en une seule pièce, avec le guide 22 du mécanisme 20The wheel 30 is intended to allow the rotation of the guide 22 causing, depending on the direction of rotation, an axial upward or downward movement of the cup 26 and in doing so of the stick 12 of cosmetic product. In this embodiment, the knurl 30 is a separate piece attached to the guide 22. Alternatively, the knurl 30 is made in one piece, with the guide 22 of the mechanism 20

Dans un tel réceptacle 10, la molette 30 du mécanisme 20 est actionnée, après avoir préalablement ôté le capot 14, par l'intermédiaire de la base 16.In such a receptacle 10, the wheel 30 of the mechanism 20 is actuated, after having previously removed the cover 14, via the base 16.

Dans une variante de réalisation, l'enveloppe 28 et/ou la gaine 24 sont prolongées axialement au-delà de la molette, ceci afin d'empêcher ou à tout le moins de rendre difficile l'accès à ladite molette 30. Une telle configuration permet de limiter l'actionnement du mécanisme 20 par un utilisateur avant même que ledit mécanisme 20 ait été associé à la base 16 correspondante.In a variant embodiment, the casing 28 and/or the sheath 24 are extended axially beyond the wheel, in order to prevent or at the very least make it difficult to access said wheel 30. Such a configuration makes it possible to limit the actuation of the mechanism 20 by a user even before said mechanism 20 has been associated with the corresponding base 16.

Par conséquent, la molette 30 et la base 16 doivent d'une part être reliées axialement ensemble et, d'autre part, être liées en rotation pour assurer la transmission à la molette 30 du mécanisme 20 de tout mouvement de rotation appliqué à la base 16. La molette 30 est ainsi destinée à être liée en rotation avec la base 16 lorsque le mécanisme 20 est monté sur la base 16.Consequently, the knob 30 and the base 16 must on the one hand be connected axially together and, on the other hand, be connected in rotation to ensure the transmission to the knob 30 of the mechanism 20 of any rotational movement applied to the base. 16. The wheel 30 is thus intended to be connected in rotation with the base 16 when the mechanism 20 is mounted on the base 16.

Pour cela la base 16 d'actionnement comprend des moyens de fixation pour lier axialement la base 16 d'actionnement avec la molette 30 du mécanisme 20.For this, the actuating base 16 comprises fastening means for axially connecting the actuating base 16 with the wheel 30 of the mechanism 20.

Les moyens de fixation comportent quatre pattes 32 qui s'étendent axialement vers le haut à partir d'une partie basse de la base 16 d'actionnement.The fixing means comprise four lugs 32 which extend axially upwards from a lower part of the base 16 for actuation.

Les quatre pattes 32 de la base 16 d'actionnement sont réparties angulairement de manière régulière, soit à 90°. Les pattes 32 sont insérées dans un orifice complémentaire qui est ménagé centralement dans la molette 30 du mécanisme 20. Avantageusement les pattes 32 sont flexibles.The four legs 32 of the actuating base 16 are angularly distributed in a regular manner, ie at 90°. The lugs 32 are inserted into a complementary orifice which is formed centrally in the knob 30 of the mechanism 20. Advantageously the lugs 32 are flexible.

L'extrémité libre de chaque patte 32 est configurée pour former un crochet 34 qui vient coopérer avec un bord 36 supérieur de l'orifice de la molette 30 afin de bloquer axialement la base 16 d'actionnement.The free end of each lug 32 is configured to form a hook 34 which cooperates with an upper edge 36 of the orifice of the knob 30 in order to axially block the base 16 for actuation.

Les pattes 32 de fixation permettent de lier axialement la base 16 d'actionnement à la molette 30 du mécanisme 20.The fixing lugs 32 make it possible to axially link the actuating base 16 to the wheel 30 of the mechanism 20.

Le blocage en rotation de la molette 30 et de la base est réalisé par un crantage complémentaire de la molette 30 et des pattes 32, c'est-à-dire un ensemble de stries 38 qui s'étendent axialement, parallèlement les unes aux autres sur une surface interne de de la molette 30 et sur la surface externe des pattes 32 de la base 16.The locking in rotation of the wheel 30 and the base is achieved by a complementary notching of the wheel 30 and the lugs 32, that is to say a set of grooves 38 which extend axially, parallel to each other. on an inner surface of the wheel 30 and on the outer surface of the legs 32 of the base 16.

Dans un tel mécanisme 20, l'enveloppe 28 et la gaine 24 sont solidaires en rotation et en translation.In such a mechanism 20, the casing 28 and the sheath 24 are integral in rotation and in translation.

Pour cela, selon l'invention, l'enveloppe 28 et la gaine 24 étant toutes les deux en matière plastique, elles sont fusionnées en au moins un point, dit point d'assemblage 40.For this, according to the invention, the casing 28 and the sheath 24 being both made of plastic material, they are fused at at least one point, called assembly point 40.

De façon avantageuse, dans le mode de réalisation représenté ici, le mécanisme 20 comprend deux points d'assemblage 40 diamétralement opposés.Advantageously, in the embodiment represented here, the mechanism 20 comprises two assembly points 40 diametrically opposed.

Les deux points d'assemblage 40 sont agencés sur une portion inférieure de l'enveloppe 28 et de la gaine 24 opposée à une portion supérieure comprenant une ouverture 42 par laquelle le produit cosmétique peut sortir.The two assembly points 40 are arranged on a lower portion of the envelope 28 and of the sheath 24 opposite an upper portion comprising an opening 42 through which the cosmetic product can come out.

Ainsi, les deux points d'assemblage 40 sont visibles sur une surface externe 44 de l'enveloppe 28.Thus, the two assembly points 40 are visible on an outer surface 44 of the envelope 28.

Notamment, dans le mode de réalisation représenté ici, chacun des points d'assemblage 40 est disposé à la fois sur la surface externe 44 de l'enveloppe 28 et sur une surface externe 46 de la gaine 24.In particular, in the embodiment shown here, each of the assembly points 40 is arranged both on the outer surface 44 of the casing 28 and on an outer surface 46 of the sheath 24.

Le point d'assemblage 40 est sous la forme d'un triangle en creux ayant un sommet 48 supérieur (c'est-à-dire un sommet dirigé vers la portion supérieure comprenant l'ouverture) arrondi.The assembly point 40 is in the form of a hollow triangle having an upper apex 48 (that is to say an apex directed towards the upper portion comprising the opening) rounded.

De façon avantageuse, le au moins un point d'assemblage 40 est obtenu par un procédé d'obtention comprenant une étape dans laquelle le au moins un point d'assemblage 40 est obtenu par soudage, tel que par exemple un poinçonnage thermique.Advantageously, the at least one assembly point 40 is obtained by a method for obtaining it comprising a step in which the at least one assembly point 40 is obtained by welding, such as for example thermal punching.

Le poinçonnage thermique peut être obtenu par l'application, la frappe d'au moins un poinçon régulé thermiquement sur les surfaces externe et/ou interne de l'enveloppe 28 et/ou de la gaine 24. Le temps d'application du/des poinçon(s) est défini en fonction de la taille du mécanisme 20, du type de matière plastique, de l'épaisseur de l'enveloppe 28 et/ou de la gaine 24, du niveau final de fusion entre l'enveloppe 28 et la gaine 24 souhaité.The thermal punching can be obtained by the application, the striking of at least one thermally regulated punch on the external and/or internal surfaces of the casing 28 and/or of the sheath 24. The application time of the punch(es) is defined according to the size of the mechanism 20, the type of plastic material, the thickness of the casing 28 and/or the sheath 24, the final level of fusion between the casing 28 and the sheath 24 desired.

Pour obtenir le mode de réalisation représenté, deux poinçons diamétralement opposés en forme de triangle ont été frappés sur les surfaces externes 44, 46 de l'enveloppe 28 et de la gaine 24.To obtain the embodiment represented, two diametrically opposed punches in the shape of a triangle were struck on the external surfaces 44, 46 of the casing 28 and of the sheath 24.

Ainsi, l'enveloppe 28 et la gaine 24 sont fusionnées par chauffage et pression d'une zone formant le point d'assemblage 40. Autrement dit, dans cette zone, les matières plastiques de l'enveloppe 28 et de la gaine 24 fondent sous la chaleur et se mélangent pour former le point d'assemblage 40, en particulier une fois la zone refroidie. La pression exercée lors du poinçonnage permet de créer une marque formant le point d'assemblage 40.Thus, the envelope 28 and the sheath 24 are fused by heating and pressure of a zone forming the assembly point 40. In other words, in this zone, the plastic materials of the envelope 28 and of the sheath 24 melt under heat and combine to form the assemblage point 40, particularly once the area has cooled. The pressure exerted during the punching makes it possible to create a mark forming the assembly point 40.

La fusion de l'enveloppe 28 et de la gaine 24 peut être détectée par un mélange des matières de la gaine 24 et de l'enveloppe 28.The fusion of the envelope 28 and the sheath 24 can be detected by a mixture of the materials of the sheath 24 and the envelope 28.

Dans le cas d'une enveloppe 28 et d'une gaine 24 de couleurs différentes, le point d'assemblage 40 peut présenter une différence de teinte par rapport au reste de l'enveloppe 28 et de la gaine 24 due au mélange des deux matières plastiques. Le point d'assemblage 40 est ainsi visualisable. Ce changement de teinte est particulièrement visible lorsque le point d'assemblage 40 est situé sur les surfaces externes 44, 46 de l'enveloppe 28 et de la gaine 24. Cette différence de teinte est notamment visible dans la zone de l'enveloppe 28 adjacente à la gaine 24 et dans la zone de la gaine 24 adjacente à l'enveloppe 28.In the case of an envelope 28 and a sheath 24 of different colors, the assembly point 40 may have a difference in color compared to the rest of the envelope 28 and the sheath 24 due to the mixture of the two materials. plastics. The assembly point 40 is thus viewable. This change of color is particularly visible when the assembly point 40 is located on the outer surfaces 44, 46 of the envelope 28 and of the sheath 24. This difference in hue is particularly visible in the zone of the envelope 28 adjacent to the sheath 24 and in the area of sheath 24 adjacent to casing 28.

Le point d'assemblage 40 est aussi visualisable par une marque en forme de creux laissée par le poinçonnage à la surface externe 44 de l'enveloppe 28 et/ou à la surface externe 46 de la gaine 24.The assembly point 40 can also be viewed by a mark in the form of a hollow left by the punching on the external surface 44 of the envelope 28 and/or on the external surface 46 of the sheath 24.

De façon avantageuse, le au moins un point d'assemblage 40 peut représenter un motif, tel qu'un logo, une lettre, un texte, ou tout autre motif adéquat. Dans le cas d'une pluralité de points d'assemblage 40, ceux-ci peuvent être répartis sur le pourtour de l'enveloppe 28, comme cela est représenté ici avec deux points d'assemblage 40.Advantageously, the at least one assembly point 40 can represent a pattern, such as a logo, a letter, a text, or any other suitable pattern. In the case of a plurality of assembly points 40, these can be distributed around the periphery of the envelope 28, as shown here with two assembly points 40.

Les points d'assemblage 40 peuvent aussi être répartis sur toute la hauteur de l'enveloppe 28 (non représenté).The assembly points 40 can also be distributed over the entire height of the envelope 28 (not shown).

La répartition peut être régulière ou aléatoire.The distribution can be regular or random.

Dans un autre mode de réalisation non représenté, le mécanisme 20 peut aussi comprendre un point d'assemblage 40 unique.In another embodiment not shown, the mechanism 20 may also include a single assembly point 40.

Dans le mode de réalisation représenté ici, l'enveloppe 28 est en outre maintenue sur la gaine 24 par l'intermédiaire d'au moins une surépaisseur 50 de matière située entre la gaine 24 et l'enveloppe 28 de manière à ce que la gaine 24 et l'enveloppe 28 soient solidaires au moins en translation. L'enveloppe 28 et la gaine 24 sont alors montées en force l'une sur l'autre permettant d'améliorer leur maintien, notamment à l'arrachement et à la rotation l'une par rapport à l'autre. Par ailleurs l'utilisation d'une surépaisseur 50 de matière entre l'enveloppe 28 et la gaine 24, autrement dit dans une zone interne du mécanisme 20 permet de conserver un bon esthétique visuel du mécanisme 20.In the embodiment represented here, the casing 28 is also held on the sheath 24 by means of at least one extra thickness 50 of material located between the sheath 24 and the casing 28 so that the sheath 24 and the casing 28 are integral at least in translation. The casing 28 and the sheath 24 are then force-fitted one on the other, making it possible to improve their retention, in particular against tearing and rotation relative to each other. Furthermore, the use of an extra thickness 50 of material between the casing 28 and the sheath 24, in other words in an internal zone of the mechanism 20 makes it possible to maintain a good visual aesthetic of the mechanism 20.

Ainsi, la surépaisseur 50 de matière peut être située sur une surface interne 52 de l'enveloppe 28 (mode de réalisation représenté ici) ou sur la surface externe 46 de la gaine 24 (non représenté) ou encore sur la surface interne 52 de l'enveloppe 28 et sur la surface externe 46 de la gaine 24 (non représenté). Il peut s'agir par exemple, d'une surépaisseur 50 unique. De façon avantageuse, il s'agit dans ce cas, par exemple d'une surépaisseur 50 qui s'étend sur tout le pourtour de la surface interne 52 de l'enveloppe 28 et/ ou de la surface externe 46 de la gaine 24, tel qu'un bourrelet.Thus, the extra thickness 50 of material can be located on an internal surface 52 of the casing 28 (embodiment shown here) or on the external surface 46 of the sheath 24 (not shown) or even on the internal surface 52 of the envelope 28 and on the outer surface 46 of the sheath 24 (not shown). It may be, for example, a single extra thickness 50 . Advantageously, in this case it is, for example, an extra thickness 50 which extends over the entire periphery of the internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24, such as a bead.

Le mécanisme 20 peut aussi comprendre une pluralité de surépaisseurs 50 de matière réparties sur la surface interne 52 de l'enveloppe 28 et/ou sur la surface externe 46 de la gaine 24.The mechanism 20 can also comprise a plurality of extra thicknesses 50 of material distributed over the inner surface 52 of the casing 28 and/or over the outer surface 46 of the sheath 24.

Les surépaisseurs 50 de matières peuvent être des points discrets répartis sur toute la surface interne 52 de l'enveloppe 28 et/ou de la surface externe 46 de la gaine 24.The extra thicknesses 50 of materials can be discrete points distributed over the entire internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24.

Les surépaisseurs 50 de matière peuvent encore être des points discrets répartis sur tout le pourtour de la surface interne 52 de l'enveloppe 28 et/ou de la surface externe 46 de la gaine 24, de manière à former par exemple un bourrelet discontinu.The extra thicknesses 50 of material can also be discrete points distributed over the entire periphery of the internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24, so as to form, for example, a discontinuous bead.

Il peut aussi s'agir de surépaisseurs 50 s'étendant sur tout le pourtour de la surface interne 52 de l'enveloppe 28 et/ ou de la surface externe 46 de la gaine 24, tel que des bourrelets.They may also be extra thicknesses 50 extending over the entire periphery of the internal surface 52 of the casing 28 and/or of the external surface 46 of the sheath 24, such as beads.

Dans le mode de réalisation représenté ici, la au moins une surépaisseur 50 de matière est deux bourrelets 50 de matière agencés sur le pourtour de la surface interne 52 de l'enveloppe 28 au niveau de la portion inférieure de l'enveloppe 28 et de la gaine 24 où se trouve les deux points d'assemblage 40 mentionnés précédemment.In the embodiment represented here, the at least one extra thickness 50 of material is two beads 50 of material arranged on the periphery of the internal surface 52 of the casing 28 at the level of the lower portion of the casing 28 and of the sheath 24 where the two assembly points 40 mentioned above are located.

Contrairement aux techniques connues, telles que le serrage ou le collage, la présence d'une surépaisseur entre l'enveloppe et la gaine et/ou la fusion entre ces deux pièces permet une liaison entre l'enveloppe et la gaine qui soit avantageusement simple, fiable et économique.Unlike known techniques, such as clamping or gluing, the presence of an extra thickness between the casing and the sheath and/or the fusion between these two parts allows a connection between the casing and the sheath which is advantageously simple, reliable and economical.

En effet, l'assemblage des deux pièces peut se faire par serrage mais très souvent cela n'est pas suffisant, notamment au niveau de la liaison axiale.Indeed, the assembly of the two parts can be done by tightening but very often this is not sufficient, in particular at the level of the axial connection.

Une autre solution pour assembler les deux pièces est la technique du collage. Cependant, l'utilisation de colle lorsque les deux pièces sont assemblées par collage, induit des risques de pollution du produit cosmétique par la colle dont il est difficile de maîtriser avec une grande précision la quantité et la répartition lors de l'assemblage.Another solution to assemble the two pieces is the technique of gluing. However, the use of glue when the two parts are assembled by gluing, induces risks of pollution of the cosmetic product by the glue, the quantity and distribution of which it is difficult to control with great precision during assembly.

Claims (12)

  1. Mechanism (20) intended to be mounted on an actuation base (16) of a receptacle (10) for applying a cosmetic product, the mechanism (20) being designed to make the cosmetic product exit by at least one rotation movement, characterised in that said mechanism (20) comprises:
    - at least one sheath (24) made of plastic material internally comprising at least one helical groove (27);
    - a guide (22) comprising a wheel (30) intended to allow the rotation of the guide (24), the wheel (30) being intended to be connected in rotation to the base (16);
    - a casing (28) made of plastic material external to the sheath (24), the casing (28) and the sheath (24) being interfused in at least one point, called assembly point (40), so as to be integral in rotation and in translation.
  2. Mechanism (20) according to the preceding claim, characterised in that the guide (22) is surrounded by the sheath (24).
  3. Mechanism (10) according to any one of the preceding claims, characterised in that the guide (22) comprises slides (25) extending axially rectilinearly.
  4. Mechanism (20) according to any one of the preceding claims, wherein the casing (28) has an outer surface (44) on which the at least assembly point (40) is visible.
  5. Mechanism (20) according to any one of the preceding claims, wherein the mechanism (20) comprises a plurality of assembly points (40).
  6. Mechanism (20) according to claim5, wherein the plurality of assembly points (40) is distributed over the perimeter of the casing (28).
  7. Mechanism (20) according to any one of claims 5 or 6, wherein the plurality of assembly points (40) is distributed over the whole height of the casing (28).
  8. Mechanism (20) according to any one of the preceding claims, wherein the at least one assembly point (40) is a pattern, such as a logo, a letter, a text.
  9. Mechanism (20) according to any one of the preceding claims, wherein the plastic material of the sheath (24) and the plastic material of the casing (28) are chosen from among polypropylene and/or polyethylene terephthalate.
  10. Receptacle (10) for applying a cosmetic product comprising a cap (14), an actuation base (16) comprising a mechanism (20) according to any one of the preceding claims, the actuation base (16) allowing an inlet and/or an outlet of the cosmetic product.
  11. Method for obtaining a mechanism (20) according to any one of claims 1 to9, comprising a step wherein the at least one assembly point (40) is obtained by welding.
  12. Method according to the preceding claim, wherein, the welding is obtained by thermal punching.
EP21168531.8A 2020-04-17 2021-04-15 Mechanism for a container for applying a cosmetic product, container comprising such a mechanism and method for obtaining such a mechanism Active EP3895580B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2003875A FR3109284B1 (en) 2020-04-17 2020-04-17 Mechanism for a receptacle for applying a cosmetic product, receptacle comprising such a mechanism and process for obtaining such a mechanism

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EP3895580A1 EP3895580A1 (en) 2021-10-20
EP3895580B1 true EP3895580B1 (en) 2023-04-05

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US (1) US20210321745A1 (en)
EP (1) EP3895580B1 (en)
CN (1) CN113520020A (en)
FR (1) FR3109284B1 (en)

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Publication number Priority date Publication date Assignee Title
FR3124060A1 (en) * 2021-06-16 2022-12-23 Albea Services Device for a cosmetic product, in particular a lipstick stick

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JP2678571B2 (en) * 1994-07-08 1997-11-17 株式会社資生堂 Stick cosmetic container
JP2678572B2 (en) * 1994-07-18 1997-11-17 株式会社ヒダン Stick cosmetic container
JPH08117022A (en) * 1994-10-24 1996-05-14 Yoshino Kogyosho Co Ltd Extension container of stick cosmetics
ES1039942Y (en) * 1998-03-20 1999-06-16 Techpack Espana S L LIP PENCIL CASE.
FR2798646B1 (en) * 1999-09-21 2001-12-28 Oreal PACKAGING AND APPLICATION DEVICE
JP5240837B2 (en) * 2008-07-29 2013-07-17 大和製罐株式会社 Degassing mechanism of feeding container
DE202011003088U1 (en) * 2011-02-23 2012-05-30 Schwan-Stabilo Cosmetics Gmbh & Co. Kg applicator
FR3036262B1 (en) * 2015-05-18 2018-10-12 Reboul S.A.S. MEANS FOR MECHANICAL RETENTION OF A COSMETIC CASE
CN108143077A (en) * 2018-02-09 2018-06-12 阿蓓亚塑料实业（上海）有限公司 For the container of club-shaped material
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JP7122190B2 (en) * 2018-08-09 2022-08-19 株式会社吉野工業所 Delivery container
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US11246394B2 (en) * 2019-09-17 2022-02-15 Zhuhai Ding Rong Plastic Products Co., Ltd Environmentally friendly lipstick tube
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FR3124060A1 (en) * 2021-06-16 2022-12-23 Albea Services Device for a cosmetic product, in particular a lipstick stick

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FR3109284B1 (en) 2023-03-24
US20210321745A1 (en) 2021-10-21
CN113520020A (en) 2021-10-22
FR3109284A1 (en) 2021-10-22
EP3895580A1 (en) 2021-10-20

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