EP0815766B1 - Stick holder cup for a lip product stick and case with such a device - Google Patents

Stick holder cup for a lip product stick and case with such a device Download PDF

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Publication number
EP0815766B1
EP0815766B1 EP97401399A EP97401399A EP0815766B1 EP 0815766 B1 EP0815766 B1 EP 0815766B1 EP 97401399 A EP97401399 A EP 97401399A EP 97401399 A EP97401399 A EP 97401399A EP 0815766 B1 EP0815766 B1 EP 0815766B1
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EP
European Patent Office
Prior art keywords
cup
stick
case
rod
product
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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.)
Expired - Lifetime
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EP97401399A
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German (de)
French (fr)
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EP0815766A1 (en
Inventor
Hervé Bouix
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LOreal SA
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LOreal SA
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B65D83/0011—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container moved by a screw-shaft

Definitions

  • the present invention relates to a stick-holding cup, in particular for a lip product, presented in the form of a solid stick, as well as a case comprising such a cup.
  • This solid stick is, for example, a stick of colored or colorless lip product, or a stick dermatological for the selective treatment of certain parts of the affected skin or lips. More particularly, the invention relates to a stick cup including volatile constituents such as cyclic or linear volatile silicones.
  • Lipstick cases are widely used in the field cosmetic for fifty years, and are known as name of ⁇ lipstick stick ⁇ .
  • such a lipstick stick includes a tubular casing in which a stick holder cup is mounted, able to slide axially in the envelope, the base of the solid, delitable product being engaged in the cup.
  • a lipstick case further comprises means operating, for example a rotary wheel, by which the user can slide the cup in the envelope to make take out or take in the stick at will.
  • the breakable product contains, among other constituents, waxes, fats and pigments.
  • the shaping of such product is made by pouring the hot mixture of the different constituents in a suitable mold. After cooling, the stick is removed from the mold and placed in the cup. This last operation is delicate due to the mechanical fragility of the stick.
  • the lip product formulator has used new raw materials, for example volatile silicones.
  • volatile silicones for example volatile silicones.
  • the use of these products is advantageous, because with these we can get lip makeup for a long time, compared with classic lipstick sticks.
  • a stick of red to silicone lips makes lip makeup particularly shiny, and the color of the pigments appears more intense than with a classic stick.
  • the deposited product layer has the advantage of drying quickly after application to the lips by evaporation of these volatile silicones.
  • a stick of lipstick with volatile silicones have various disadvantages.
  • evaporates these volatile constituents a silicone stick degrades very quickly on contact with air; it hardens, making the unusable product.
  • this product takes an unsightly appearance
  • placing a stick of lipstick in a cup is performed, using a cup with a pierced bottom, to avoid piston effect which does not allow the stick to be placed correctly in the cup and keep it properly in it.
  • this piston it is not possible to place the base of the stick in contact with the bottom of the cup, an air cushion forming between the stick and the bottom.
  • an open bottom cup is not usable for a stick with volatile constituents, because evaporation takes place through the open bottom of the cup, resulting in a drying of the base of the stick, risking the fall of the stick out of the cup.
  • the stick in the cup is difficult to insure, especially during the carrying the case, for example in a handbag, where the slightest shock risk of separating the stick from the cup.
  • the object of the present invention is to remedy all the drawbacks above, by proposing a cup for a lipstick case in stick, especially with volatile silicones, reducing or even avoiding evaporation of these, avoiding the separation of the stick from the cup ensuring, in addition, easy installation and maintenance stick from cup to cup.
  • Another object of the invention is to propose an embodiment cup simple and inexpensive, which allows, moreover a set up industrial ease of the stick in the cup, and this whatever the composition of the stick.
  • a first object of the invention relates to a stick-holding cup. provided with an axis of symmetry, intended to support a stick of product disintegrable solid, comprising a closed transverse bottom, and a wall side connected to this bottom, characterized in that the side wall internally has at least one micro-groove substantially axial, destined to create an air leak, when placing the stick in the cup.
  • the micro-groove or grooves of the cup extend over the entire side wall height.
  • these micro-grooves are 4 in number, distributed regularly all around the inner side wall of the cup, the orientation of which is substantially parallel to the axis of this last . So, when placing the stick in the cup, the air can escape from the cup, and any piston effect is avoided.
  • a such a micro-groove has, for example, a depth of about 0.2 mm and a width of about 0.2 mm.
  • the cup has a cylindrical, oval or prismatic shape. Most often, a cylindrical cup is preferred.
  • a second object of the invention relates to a case containing a stick solid, breakable product, comprising a cup as described previously and provided with an axis, drive means, suitable to cause sliding along this axis of the cup in the case, view to order, at will, the re-entry in the case, or the exit out of the case of said product stick.
  • the case may include a cap capable of closing the external envelope, fitting onto the sheath.
  • this cap comprises first sealing means capable of being applied, in a sealed manner, against the external wall of the sheath. This prevents the volatile constituents of the stick from escaping through the case into the atmosphere.
  • these first sealing means consist of one or more annular gadroons made of elastic material. It is desirable to configure the cap so as to define a reduced volume for vapors.
  • the side wall internal can carry one or more elements projecting inwards from the cup, for example in the form of prominent ribs, orientation substantially parallel to the axis of the cup. These ribs improve the attachment of the base of the stick in the cup.
  • the case comprises a base and the sheath, the latter being mounted fixed in translation and movable in rotation relative to the base of the case.
  • This sheath has first and second open ends. Its first end constitutes an outlet orifice stick.
  • the second end is preferably integral a holding element preventing rotation of the cup stem but allowing its translation in the sheath.
  • the rod may have one or two flats extending over its entire length, so that the stem has a cross section substantially oval.
  • the element that prevents rotation of the rod is provided with an opening of section complementary to the stem section, for example oval.
  • the cup comprises, in addition, first means for driving the cup, for example a central rod secured to the bottom of the cup, carrying an external thread.
  • first means for driving the cup for example a central rod secured to the bottom of the cup, carrying an external thread.
  • the side wall of the cup and the rod are located on either side of the bottom of the cup.
  • This rod cooperates with second drive means carried by the case, to cause a sliding of the cup in the sheath of the case, along the axis of the cup.
  • the second drive means may be integral with the base of the case. They include, for example, a sleeve provided with a internally threaded bore, the thread of the sleeve being suitable for cooperate with the thread of the rod.
  • second sealing means are, in addition provided between the sheath and the cup.
  • These second means are formed, for example, by one or more annular beads external, intended to come into watertight contact with a sheath of the case, surrounding the cup. Compared to a classic lipstick case, it is thus possible, to reduce the escape of volatile components by outside the case, components which the stick may contain.
  • the sheath is adapted to the shape of the cup. In particular, it presents a cylindrical shape for a cylindrical cup.
  • a case 1 comprising a lipstick stick B containing volatile constituents, comprising an external protective envelope 2, for example metallic.
  • the case has a central axis X and has a section substantially square, with rounded corners.
  • Envelope 2 is provided with a closed bottom 21 and an open end 22.
  • a shirt intermediate cylindrical 10 which has a central part 16, extending towards the bottom 21 by 2/3 of the height of the envelope 2.
  • the shirt 10 is provided with a shoulder 11 on the side of its end turned towards the bottom.
  • a cylindrical extension 12 of section smaller than that of the shirt 10.
  • the free end of this extension 12 ends near the bottom 21 by a flange 13, folded radially towards the X axis.
  • the jacket 10 On the side opposite the bottom 21, the jacket 10 has a zone of greater thickness 14, the internal dimension of which corresponds to the internal section of the envelope 2.
  • the zone 14 thus forms first and second stops 14a and 14b including the first 14a, turned towards the bottom 21 of the envelope, bears against the free end 22 of the envelope 2.
  • a chimney 15 On the side of the second stop 14b, opposite the first, a chimney 15 is provided.
  • the stop 14b, in combination with the chimney 15 form a seat for a protective cap 7, advantageously made of metal, of the same section as that of the envelope 2.
  • This cap has one end 71 closed, in which is force fitted a sub-cover 72 made of material semi-rigid thermoplastic.
  • This under-hood 72 is provided with a free end 8 ending about 2/3 the height of the cap.
  • the internal face of the end 8 is provided with three gadroons 8a, 8b, 8c annulars, the role of which will be explained later.
  • an element of holding 6 In the intermediate folder 10 is fitted an element of holding 6.
  • This element is cylindrical and has two ends 6a, 6c; a first end, facing towards the bottom 21 comprises a internal radial extension 6d which is fixed, for example, by gluing or press fit into part of the intermediate jacket 10, at neighborhood of the shoulder 11.
  • a cylindrical space is defined between the sleeve 6 and the intermediate jacket 10.
  • the second end 6c has a substantially oval orifice 6b, of which the role will be explained later.
  • a sheath cylindrical 4 In the cylindrical space between the sleeve 6 and the jacket 10 is arranged, free in rotation but fixed in translation, a sheath cylindrical 4, whose external diameter is slightly less than internal diameter of the central part 16 of the intermediate jacket 10, and whose internal diameter is slightly greater than the diameter of the holding element 6.
  • This sheath 4 extends from the radial extension 6d to beyond the gadroons 8a, 8b, 8c of the under-cover 72. Thanks to the gadroons 8a, 8b, 8c, the inside of the sheath 4 is isolated from the ambient air, and it prevents any escape in the solvent atmosphere present in the case and, this avoids the drying of stick B.
  • a cup 3 movable in translation axial.
  • This cup has a circular bottom 31 (see Figure 5) to which a lateral cylindrical wall 32 is connected.
  • the bottom 31 of the cup 3 further comprises a central rod 33, the wall 32 and the rod 33 extending in opposite directions on either side of the bottom 31 from the case.
  • the rod 33 is provided with two flats 37 over its entire length. It is provided with an external thread 33a and constitutes the first means for driving the cup, thread capable of cooperating with a thread 51 of a tubular sleeve 5, constituting second training means.
  • the sleeve 5 is force-fitted into the extension 12 of the jacket 10 and rests on the rim 13.
  • the rod 33 of the cup crosses the oval orifice 6b of the element of holding 6.
  • the rod 33 can be moved axially in translation in the sleeve 4, its rotation being prevented by the shape of the rod and from port 6b, respectively.
  • the cup 3 is made of a semi-rigid material such as polypropylene. Its side wall 32, substantially in the form cylinder, has an external peripheral sealing ring 36, suitable for sealingly pressing against the inner wall of the sheath 4.
  • an external peripheral sealing ring 36 suitable for sealingly pressing against the inner wall of the sheath 4.
  • the internal face of the side wall 32 includes axial micro-grooves 34, here four in number, practiced on all the height of the cup and evenly spaced from each other to others. Thanks to the presence of these micro-grooves, the stick B can be mounted in cup 3 by conventional industrial tools, without risk of an air cushion forming between the bottom 31 of the cup and the base of product stick B.
  • the cylindrical side wall 32 of the cup has axial attachment ribs 35 of the stick B. As visible on the Figure 6, these ribs 35 are 8 in number. When mounting the stick B in the cup, these ribs fit in the base of the stick, strengthening the retention of the stick in the cup.
  • This way of mounting the stick B in the cup requires only one grip force, by tool, moderate from the stick, not at risk to damage the latter.
  • This arrangement is suitable, in particular, for mounting a stick of relatively soft consistency, for example a stick containing volatile silicones.

Description

La présente invention se rapporte à une cupule porte-bâton, notamment pour un produit à lèvres, présenté sous forme de bâton solide, ainsi qu'à un étui comportant une telle cupule. Ce bâton solide est, par exemple, un bâton de produit à lèvres coloré ou incolore, ou bien un stick dermatologique pour le traitement sélectif de certaines parties de la peau ou des lèvres affectées. Plus particulièrement, l'invention vise une cupule pour bâton comprenant des constituants volatils, comme les silicones volatiles cycliques ou linéaires.The present invention relates to a stick-holding cup, in particular for a lip product, presented in the form of a solid stick, as well as a case comprising such a cup. This solid stick is, for example, a stick of colored or colorless lip product, or a stick dermatological for the selective treatment of certain parts of the affected skin or lips. More particularly, the invention relates to a stick cup including volatile constituents such as cyclic or linear volatile silicones.

Les étuis de rouge à lèvres sont utilisés couramment dans le domaine cosmétique depuis une cinquantaine d'années, et sont connus sous le nom de 〈〈bâton de rouge à lèvres〉〉.Lipstick cases are widely used in the field cosmetic for fifty years, and are known as name of 〈〈 lipstick stick 〉〉.

Généralement, un tel bâton pour rouge à lèvres comprend une enveloppe tubulaire dans laquelle est montée une cupule porte-bâton, capable de coulisser axialement dans l'enveloppe, la base du bâton de produit solide, délitable étant engagée dans la cupule. De façon classique, un tel étui de rouge à lèvres comprend, en outre, des moyens de manoeuvre, par exemple une molette tournante, par laquelle l'utilisateur peut faire coulisser la cupule dans l'enveloppe pour faire sortir ou rentrer le bâton à volonté.Generally, such a lipstick stick includes a tubular casing in which a stick holder cup is mounted, able to slide axially in the envelope, the base of the solid, delitable product being engaged in the cup. In a way conventional, such a lipstick case further comprises means operating, for example a rotary wheel, by which the user can slide the cup in the envelope to make take out or take in the stick at will.

Par ailleurs, le produit délitable contient, entre autres constituants, des cires, des matières grasses et des pigments. La mise en forme d'un tel produit est effectué par coulage du mélange à chaud des différents constituants dans un moule approprié. Après refroidissement, le bâton est démoulé et mis en place dans la cupule. Cette dernière opération est délicate du fait de la fragilité mécanique du bâton.Furthermore, the breakable product contains, among other constituents, waxes, fats and pigments. The shaping of such product is made by pouring the hot mixture of the different constituents in a suitable mold. After cooling, the stick is removed from the mold and placed in the cup. This last operation is delicate due to the mechanical fragility of the stick.

Différentes solutions ont été proposées pour assurer un maintien convenable du bâton dans la cupule, par exemple par le document FR-A-2 548 880. Ce document décrit le maintien du bâton dans la cupule à l'aide de languettes élastiques qui font partie de la cupule. Ces languettes assurent un maintien satisfaisant du bâton, à condition que ce dernier soit bien solide et peu déformable.Different solutions have been proposed to ensure maintenance suitable stick in the cup, for example by document FR-A-2 548 880. This document describes the maintenance of the stick in the cup at using elastic tabs that are part of the cup. These tongues ensure satisfactory support of the stick, provided that the latter is very solid and not very deformable.

Or, depuis peu de temps, le formulateur de produits pour lèvres emploie de nouvelles matières premières, par exemple des silicones volatiles. L'emploi de ces produits est avantageux, car avec ceux-ci on peut obtenir un maquillage des lèvres pendant une longue durée, par rapport aux bâtons de rouge à lèvres classiques. De plus, un bâton de rouge à lèvres aux silicones rend le maquillage des lèvres particulièrement brillant, et la couleur des pigments apparaít plus intense qu'avec un bâton classique. En outre, la couche de produit déposée présente l'avantage de sécher rapidement après l'application sur les lèvres par évaporation de ces silicones volatiles. Recently, however, the lip product formulator has used new raw materials, for example volatile silicones. The use of these products is advantageous, because with these we can get lip makeup for a long time, compared with classic lipstick sticks. In addition, a stick of red to silicone lips makes lip makeup particularly shiny, and the color of the pigments appears more intense than with a classic stick. In addition, the deposited product layer has the advantage of drying quickly after application to the lips by evaporation of these volatile silicones.

Malgré les avantages ci-dessus, un bâton de rouge à lèvres aux silicones volatiles présente différents inconvénients. En particulier, du fait de l'évaporation de ces constituants volatils, un bâton aux silicones se dégrade très rapidement au contact de l'air ; il durcit, ce qui rend le produit inutilisable. En outre, ce produit prend un aspect inesthétiqueDespite the above benefits, a stick of lipstick with volatile silicones have various disadvantages. In particular, evaporates these volatile constituents, a silicone stick degrades very quickly on contact with air; it hardens, making the unusable product. In addition, this product takes an unsightly appearance

Une solution à ce problème a été proposée par le document EP-A-0 182 655 ; elle consiste en un étui de protection du bâton contre le dessèchement, muni de moyens d'étanchéité destinés à réduire cette évaporation. Cependant, du fait de la présence de ces silicones volatiles, le bâton les contenant est plus mou qu'un bâton classique. Il s'en suit une manipulation de ce bâton plus délicate, notamment sa mise en place dans une cupule porte-bâton équipant l'étui.A solution to this problem has been proposed by document EP-A-0 182 655; it consists of a protective case for the stick against drying, provided with sealing means intended to reduce this evaporation. However, due to the presence of these silicones volatile, the stick containing them is softer than a conventional stick. he A more delicate manipulation of this stick follows, in particular its placement in a stick holder cup fitted to the case.

Généralement, la mise en place d'un bâton de rouge à lèvres dans une cupule est effectuée, en utilisant une cupule à fond percé, pour éviter un effet de pistonnage qui ne permet pas de déposer le bâton correctement dans la cupule et de le maintenir convenablement dans celle-ci. En effet, en présence de ce pistonnage, il n'est pas possible de placer la base du bâton au contact du fond de la cupule, un coussin d'air se formant entre le bâton et le fond. Or, une cupule à fond ouvert n'est pas utilisable pour un bâton à constituants volatils, car l'évaporation s'effectue par le fond ouvert de la cupule, d'où il résulte un dessèchement de la base du bâton, risquant d'entraíner la chute du bâton hors de la cupule.Generally, placing a stick of lipstick in a cup is performed, using a cup with a pierced bottom, to avoid piston effect which does not allow the stick to be placed correctly in the cup and keep it properly in it. In Indeed, in the presence of this piston, it is not possible to place the base of the stick in contact with the bottom of the cup, an air cushion forming between the stick and the bottom. However, an open bottom cup is not usable for a stick with volatile constituents, because evaporation takes place through the open bottom of the cup, resulting in a drying of the base of the stick, risking the fall of the stick out of the cup.

En outre, du fait de la consistance molle d'un bâton aux silicones volatiles et des propriétés lubrifiantes de ces dernières, la tenue du bâton dans la cupule est difficile à assurer, notamment pendant le transport de l'étui, par exemple dans un sac à main, où le moindre choc risque de désolidariser le bâton de la cupule.In addition, due to the soft consistency of a silicone stick volatile properties of the latter, the stick in the cup is difficult to insure, especially during the carrying the case, for example in a handbag, where the slightest shock risk of separating the stick from the cup.

La présente invention a pour but de remédier à tous les inconvénients ci-dessus, en proposant une cupule pour un étui de rouge à lèvres en bâton, notamment aux silicones volatiles, réduisant, voire évitant l'évaporation de celles-ci, évitant la désolidarisation du bâton de la cupule en assurant, en outre une mise en place aisée et un maintien fiable du bâton dans la cupule.The object of the present invention is to remedy all the drawbacks above, by proposing a cup for a lipstick case in stick, especially with volatile silicones, reducing or even avoiding evaporation of these, avoiding the separation of the stick from the cup ensuring, in addition, easy installation and maintenance stick from cup to cup.

Un autre but de l'invention est de proposer une cupule de réalisation simple et peu coûteuse, qui permette, de plus une mise en place industrielle aisée du bâton dans la cupule, et ceci quelle que soit la composition du bâton.Another object of the invention is to propose an embodiment cup simple and inexpensive, which allows, moreover a set up industrial ease of the stick in the cup, and this whatever the composition of the stick.

Aussi, un premier objet de l'invention est relatif à une cupule porte-bâton pourvue d'un axe de symétrie, destinée à supporter un bâton de produit solide délitable, comportant un fond transversal fermé, et une paroi latérale raccordée à ce fond, caractérisée en ce que la paroi latérale comporte intérieurement au moins une micro-rainure sensiblement axiale, destinée à créer une fuite d'air, lors de la mise en place du bâton dans la cupule.Also, a first object of the invention relates to a stick-holding cup. provided with an axis of symmetry, intended to support a stick of product disintegrable solid, comprising a closed transverse bottom, and a wall side connected to this bottom, characterized in that the side wall internally has at least one micro-groove substantially axial, destined to create an air leak, when placing the stick in the cup.

De préférence, la ou les micro-rainures de la cupule s'étendent sur toute la hauteur de la paroi latérale.Preferably, the micro-groove or grooves of the cup extend over the entire side wall height.

Avantageusement, ces micro-rainures sont au nombre de 4, reparties régulièrement sur tout le pourtour de la paroi latérale interne de la cupule, dont l'orientation est sensiblement parallèle à l'axe de cette dernière.. Ainsi, lors de la mise en place du bâton dans la cupule, l'air peut s'échapper de la cupule, et on évite tout effet de pistonnage. Une telle micro-rainure a, par exemple, une profondeur d'environ 0,2 mm et une largeur d'environ 0,2 mm.Advantageously, these micro-grooves are 4 in number, distributed regularly all around the inner side wall of the cup, the orientation of which is substantially parallel to the axis of this last .. So, when placing the stick in the cup, the air can escape from the cup, and any piston effect is avoided. A such a micro-groove has, for example, a depth of about 0.2 mm and a width of about 0.2 mm.

Généralement, la cupule a une forme cylindrique, ovale ou prismatique. Le plus souvent, on préfère une cupule de forme cylindrique.Generally, the cup has a cylindrical, oval or prismatic shape. Most often, a cylindrical cup is preferred.

Un second objet de l'invention se rapporte à un étui contenant un bâton de produit solide, délitable, comportant une cupule telle que décrite précédemment et pourvue d'un axe, des moyens d'entraínement, aptes à provoquer un coulissement selon cet axe de la cupule dans l'étui, en vue de commander, à volonté, la rentrée dans l'étui, ou la sortie hors de l'étui dudit bâton de produit.A second object of the invention relates to a case containing a stick solid, breakable product, comprising a cup as described previously and provided with an axis, drive means, suitable to cause sliding along this axis of the cup in the case, view to order, at will, the re-entry in the case, or the exit out of the case of said product stick.

L'emploi d'une cupule à fond fermé permet d'éviter le dessèchement de la base du bâton.
La cupule avec ses micro-rainures est parfaitement bien adaptée à un bâton contenant des constituants volatils, par exemple des silicones volatiles, bien qu'elle peut être utilisée avec d'autres types de bâtons. Lorsque des silicones volatiles sont présentes, il est, en outre, préférable de prévoir des moyens d'étanchéité pour empêcher les silicones volatiles de s'échapper pour empêcher le dessèchement du bâton. De plus, il est préférable de conserver le bâton aux silicones volatiles dans un environnement saturé en vapeurs (de ces silicones). Ainsi, l'étui peut comporter un capuchon apte à fermer l'enveloppe externe, s'emboítant sur le fourreau. De façon avantageuse, ce capuchon comporte des premiers moyens d'étanchéité aptes à s'appliquer, de façon étanche, contre la paroi externe du fourreau. Ainsi, on empêche l'échappement des constituants volatils du bâton au travers de l'étui dans l'atmosphère. Avantageusement, ces premiers moyens d'étanchéité sont constitués par un ou plusieurs godrons annulaires en matériau élastique. Il est souhaitable de configurer le capuchon de façon à définir un volume réduit pour les vapeurs.The use of a closed bottom cup prevents drying of the base of the stick.
The cup with its micro-grooves is perfectly suited to a stick containing volatile constituents, for example volatile silicones, although it can be used with other types of sticks. When volatile silicones are present, it is further preferable to provide sealing means to prevent volatile silicones from escaping to prevent drying of the stick. In addition, it is preferable to keep the volatile silicone stick in an environment saturated with vapors (of these silicones). Thus, the case may include a cap capable of closing the external envelope, fitting onto the sheath. Advantageously, this cap comprises first sealing means capable of being applied, in a sealed manner, against the external wall of the sheath. This prevents the volatile constituents of the stick from escaping through the case into the atmosphere. Advantageously, these first sealing means consist of one or more annular gadroons made of elastic material. It is desirable to configure the cap so as to define a reduced volume for vapors.

Pour assurer l'accrochage du bâton dans la cupule, la paroi latérale interne peut porter un ou plusieurs éléments en saillie vers l'intérieur de la cupule, par exemple sous forme de nervures proéminentes, d'orientation sensiblement parallèles à l'axe de la cupule. Ces nervures améliorent l'accrochage de la base du bâton dans la cupule.To ensure the sticking of the stick in the cup, the side wall internal can carry one or more elements projecting inwards from the cup, for example in the form of prominent ribs, orientation substantially parallel to the axis of the cup. These ribs improve the attachment of the base of the stick in the cup.

De préférence, l'étui comporte une embase et le fourreau, ce dernier étant monté fixe en translation et mobile en rotation par rapport à l'embase de l'étui. Ce fourreau présente des première et seconde extrémités ouvertes. Sa première extrémité constitue un orifice de sortie du bâton. En outre, la seconde extrémité est de préférence solidaire d'un élément de maintien empêchant la rotation de la tige de cupule mais permettant sa translation dans le fourreau. A cet effet, de façon avantageuse, la tige peut comporter un ou deux méplats s'étendant sur toute sa longueur, de sorte que la tige présente une section sensiblement ovale. Dans ce cas, l'élément qui empêche la rotation de la tige est pourvu d'une ouverture de section complémentaire à la section de la tige, par exemple ovale.Preferably, the case comprises a base and the sheath, the latter being mounted fixed in translation and movable in rotation relative to the base of the case. This sheath has first and second open ends. Its first end constitutes an outlet orifice stick. In addition, the second end is preferably integral a holding element preventing rotation of the cup stem but allowing its translation in the sheath. To this end, so advantageous, the rod may have one or two flats extending over its entire length, so that the stem has a cross section substantially oval. In this case, the element that prevents rotation of the rod is provided with an opening of section complementary to the stem section, for example oval.

Avantageusement, la cupule comporte, en outre, des premiers moyens d'entraínement de la cupule, par exemple une tige centrale solidaire du fond de la cupule, portant un filetage externe. La paroi latérale de la cupule et la tige sont situées de part et d'autre du fond de la cupule. Cette tige coopère avec des seconds moyens d'entraínement portés par l'étui, pour provoquer un coulissement de la cupule dans le fourreau de l'étui, selon l'axe de la cupule.Advantageously, the cup comprises, in addition, first means for driving the cup, for example a central rod secured to the bottom of the cup, carrying an external thread. The side wall of the cup and the rod are located on either side of the bottom of the cup. This rod cooperates with second drive means carried by the case, to cause a sliding of the cup in the sheath of the case, along the axis of the cup.

Les seconds moyens d'entraínement peuvent être solidaires de l'embase de l'étui. Ils comportent, par exemple, un manchon muni d'un alésage taraudé intérieurement, le taraudage du manchon étant apte à coopérer avec le filetage de la tige.The second drive means may be integral with the base of the case. They include, for example, a sleeve provided with a internally threaded bore, the thread of the sleeve being suitable for cooperate with the thread of the rod.

On comprendra, qu'en mettant en rotation le fourreau par rapport à l'enveloppe externe de l'étui, on peut faire coulisser la cupule dans le fourreau, et commander ainsi à volonté la sortie ou la rentrée du bâton dans l'étui.It will be understood that by rotating the sheath relative to the outer casing of the case, you can slide the cup in the scabbard, and thus control at will the exit or the return of the stick in the case.

Selon l'invention, des seconds moyens d'étanchéité sont, en outre prévus entre le fourreau et la cupule. Ces seconds moyens sont constitués, par exemple, par un ou plusieurs bourrelets annulaires externes, destinés à venir au contact étanche avec un fourreau de l'étui, entourant la cupule. Par rapport à un étui de rouge à lèvres classique, il est ainsi possible, de réduire l'échappement des composants volatils en dehors de l'étui, composants que peut comporter le bâton. According to the invention, second sealing means are, in addition provided between the sheath and the cup. These second means are formed, for example, by one or more annular beads external, intended to come into watertight contact with a sheath of the case, surrounding the cup. Compared to a classic lipstick case, it is thus possible, to reduce the escape of volatile components by outside the case, components which the stick may contain.

Le fourreau est adapté à la forme de la cupule. En particulier, il présente une forme cylindrique pour une cupule cylindrique.The sheath is adapted to the shape of the cup. In particular, it presents a cylindrical shape for a cylindrical cup.

Pour mieux faire comprendre la présente invention, on va décrire maintenant, à titre d'exemple purement illustratif et nullement limitatif, un mode de réalisation d'un étui de rouge à lèvres équipé d'une cupule conforme à l'invention, en référence aux dessins annexés.

  • La figure 1 représente une vue en coupe axiale d'un étui de rouge à lèvre, muni d'une cupule porte-bâton, conforme à l'invention.
  • La figure 2 représente une vue en coupe transversale selon un plan II-II de la figure 1.
  • La figure 3 représente une vue en coupe axiale suivant un plan III-III de la figure 2.
  • La figure 4 représente une vue en coupe transversale selon un plan IV-IV de la figure 3.
  • La figure 5 est une vue agrandie en perspective avec arrachement partiel de la cupule montée dans l'étui de la figure 1.
  • La figure 6 représente une vue de l'étui de la figure 1, en coupe transversale selon un plan VI-VI de la figure 3.
    • To better understand the present invention, we will now describe, by way of purely illustrative and in no way limitative, an embodiment of a lipstick case fitted with a cup according to the invention, with reference to attached drawings.
  • Figure 1 shows an axial sectional view of a lipstick case, provided with a stick holder cup, according to the invention.
  • FIG. 2 represents a cross-sectional view along a plane II-II of FIG. 1.
  • FIG. 3 represents a view in axial section along a plane III-III of FIG. 2.
  • FIG. 4 represents a cross-sectional view along a plane IV-IV of FIG. 3.
  • FIG. 5 is an enlarged perspective view with partial cutaway of the cup mounted in the case of FIG. 1.
  • FIG. 6 represents a view of the case of FIG. 1, in cross section along a plane VI-VI of FIG. 3.

    • En se référant aux figures 1 à 6, on peut voir un étui 1 comportant un bâton de rouge à lèvres B contenant des constituants volatils, comprenant une enveloppe de protection externe 2, par exemple métallique. L'étui est pourvu d'un axe central X et présente une section sensiblement carrée, aux angles arrondis. L'enveloppe 2 est munie d'un fond fermé 21 et d'une extrémité ouverte 22.Referring to Figures 1 to 6, we can see a case 1 comprising a lipstick stick B containing volatile constituents, comprising an external protective envelope 2, for example metallic. The case has a central axis X and has a section substantially square, with rounded corners. Envelope 2 is provided with a closed bottom 21 and an open end 22.

    Dans l'enveloppe externe 2 est emmanché, de façon fixe, une chemise cylindrique intermédiaire 10, qui comporte une partie centrale 16, s'étendant vers le fond 21 sur 2/3 de la hauteur de l'enveloppe 2. La chemise 10 est pourvue d'un épaulement 11 du côté de son extrémité tournée vers le fond.In the outer casing 2 is fixedly fitted a shirt intermediate cylindrical 10, which has a central part 16, extending towards the bottom 21 by 2/3 of the height of the envelope 2. The shirt 10 is provided with a shoulder 11 on the side of its end turned towards the bottom.

    A cet épaulement 11 se raccorde une extension 12 cylindrique, de section plus faible que celle de la chemise 10. L'extrémité libre de cette extension 12 se termine à proximité du fond 21 par un rebord 13, replié radialement vers l'axe X.To this shoulder 11 is connected a cylindrical extension 12, of section smaller than that of the shirt 10. The free end of this extension 12 ends near the bottom 21 by a flange 13, folded radially towards the X axis.

    Du côté opposé au fond 21, la chemise 10 comporte, une zone d'épaisseur plus importante 14, dont la dimension interne correspond à la section interne de l'enveloppe 2. La zone 14 forme ainsi des premières et secondes butées 14a et 14b dont la première 14a, tournée vers le fond 21 de l'enveloppe, est en appui contre l'extrémité libre 22 de l'enveloppe 2. Du côté de la seconde butée 14b, opposée à la première, une cheminée 15 est prévue. La butée 14b, en combinaison avec la cheminée 15 forment un siège pour un capuchon de protection 7, avantageusement en métal, de même section que celle de l'enveloppe 2. Ce capuchon comporte une extrémité 71 fermée, dans laquelle est emmanché à force un sous-capot 72 réalisé en matériau thermoplastique semi-rigide. Ce sous-capot 72 est pourvu d'une extrémité libre 8 se terminant environ à 2/3 de la hauteur du capuchon. La face interne de l'extrémité 8 est munie de trois godrons 8a, 8b, 8c annulaires, dont le rôle sera expliqué plus loin.On the side opposite the bottom 21, the jacket 10 has a zone of greater thickness 14, the internal dimension of which corresponds to the internal section of the envelope 2. The zone 14 thus forms first and second stops 14a and 14b including the first 14a, turned towards the bottom 21 of the envelope, bears against the free end 22 of the envelope 2. On the side of the second stop 14b, opposite the first, a chimney 15 is provided. The stop 14b, in combination with the chimney 15 form a seat for a protective cap 7, advantageously made of metal, of the same section as that of the envelope 2. This cap has one end 71 closed, in which is force fitted a sub-cover 72 made of material semi-rigid thermoplastic. This under-hood 72 is provided with a free end 8 ending about 2/3 the height of the cap. The internal face of the end 8 is provided with three gadroons 8a, 8b, 8c annulars, the role of which will be explained later.

    Dans la chemise intermédiaire 10 est emmanché un élément de maintien 6. Cet élément est cylindrique et comporte deux extrémités 6a, 6c ; une première extrémité, tournée vers le fond 21 comporte une extension radiale interne 6d qui est fixée, par exemple, par collage ou emboítement à force dans une partie de la chemise intermédiaire 10, au voisinage de l'épaulement 11. Ainsi un espace cylindrique est défini entre le manchon 6 et la chemise intermédiaire 10. La seconde extrémité 6c comporte un orifice de forme sensiblement ovale 6b, dont le rôle sera expliqué plus loin.In the intermediate folder 10 is fitted an element of holding 6. This element is cylindrical and has two ends 6a, 6c; a first end, facing towards the bottom 21 comprises a internal radial extension 6d which is fixed, for example, by gluing or press fit into part of the intermediate jacket 10, at neighborhood of the shoulder 11. Thus a cylindrical space is defined between the sleeve 6 and the intermediate jacket 10. The second end 6c has a substantially oval orifice 6b, of which the role will be explained later.

    Dans l'espace cylindrique entre le manchon 6 et la chemise 10 est disposé, libre en rotation mais fixe en translation, un fourreau cylindrique 4, dont le diamètre externe est légèrement inférieur au diamètre interne de la partie centrale 16 de la chemise intermédiaire 10, et dont le diamètre interne est légèrement supérieur au diamètre externe de l'élément de maintien 6. Ce fourreau 4 s'étend depuis l'extension radiale 6d jusqu'au-delà des godrons 8a, 8b, 8c du sous-capot 72. Grâce aux godrons 8a, 8b, 8c, l'intérieur du fourreau 4 est isolé de l'air ambiant, et on empêche tout échappement dans l'atmosphère de solvant présent dans l'étui et, on évite ainsi le dessèchement du bâton B.In the cylindrical space between the sleeve 6 and the jacket 10 is arranged, free in rotation but fixed in translation, a sheath cylindrical 4, whose external diameter is slightly less than internal diameter of the central part 16 of the intermediate jacket 10, and whose internal diameter is slightly greater than the diameter of the holding element 6. This sheath 4 extends from the radial extension 6d to beyond the gadroons 8a, 8b, 8c of the under-cover 72. Thanks to the gadroons 8a, 8b, 8c, the inside of the sheath 4 is isolated from the ambient air, and it prevents any escape in the solvent atmosphere present in the case and, this avoids the drying of stick B.

    Dans le fourreau 4 est disposée une cupule 3, mobile en translation axiale. Cette cupule comporte un fond circulaire 31 (voir figure 5) auquel se raccorde une paroi cylindrique latérale 32. Le fond 31 de la cupule 3 comporte, en outre, une tige centrale 33, la paroi 32 et la tige 33 s'étendant dans des directions opposées de part et d'autre du fond 31 de l'étui. La tige 33 est muni de deux méplats 37 sur toute sa longueur. Elle est pourvue d'un filetage externe 33a et constitue des premiers moyens d'entraínement de la cupule, filetage apte à coopérer avec un taraudage 51 d'un manchon tubulaire 5, constituant des seconds moyens d'entraínement. Le manchon 5 est emmanché à force dans l'extension 12 de la chemise 10 et repose sur le rebord 13.In the sheath 4 is disposed a cup 3, movable in translation axial. This cup has a circular bottom 31 (see Figure 5) to which a lateral cylindrical wall 32 is connected. The bottom 31 of the cup 3 further comprises a central rod 33, the wall 32 and the rod 33 extending in opposite directions on either side of the bottom 31 from the case. The rod 33 is provided with two flats 37 over its entire length. It is provided with an external thread 33a and constitutes the first means for driving the cup, thread capable of cooperating with a thread 51 of a tubular sleeve 5, constituting second training means. The sleeve 5 is force-fitted into the extension 12 of the jacket 10 and rests on the rim 13.

    La tige 33 de la cupule traverse l'orifice ovale 6b de l'élément de maintien 6. Ainsi, la tige 33 peut être déplacée axialement en translation dans le fourreau 4, sa rotation étant empêchée par la forme de la tige et de l'orifice 6b, respectivement. A partir de la description qui précède, on comprend, qu'en mettant en rotation l'enveloppe 2 (et donc de la chemise 10 et du manchon 5 qui en sont solidaires) par rapport au fourreau 4, on peut faire coulisser, à volonté, la cupule 3 dans le fourreau 4.The rod 33 of the cup crosses the oval orifice 6b of the element of holding 6. Thus, the rod 33 can be moved axially in translation in the sleeve 4, its rotation being prevented by the shape of the rod and from port 6b, respectively. From the above description, we understands that by rotating the envelope 2 (and therefore the shirt 10 and sleeve 5 which are integral with it) relative to the sleeve 4, you can slide, at will, the cup 3 in the scabbard 4.

    Avantageusement, la cupule 3, est réalisée en un matériau semi-rigide tel que le polypropylène. Sa paroi latérale 32, sensiblement sous forme de cylindre, comporte un anneau d'étanchéité périphérique externe 36, apte à s'appliquer, de façon étanche, contre la paroi interne du fourreau 4. Lorsque la cupule est montée dans le fourreau 4 (voir figure 1), on évite ainsi l'échappement des solvants présents dans le bâton, en direction de l'espace situé au-dessus du fond 21.Advantageously, the cup 3 is made of a semi-rigid material such as polypropylene. Its side wall 32, substantially in the form cylinder, has an external peripheral sealing ring 36, suitable for sealingly pressing against the inner wall of the sheath 4. When the cup is mounted in the sheath 4 (see Figure 1), we thus avoids the escape of solvents present in the stick, by direction of the space above the bottom 21.

    Selon l'invention, la face interne de la paroi latérale 32 comporte des micro-rainures axiales 34, ici au nombre de quatre, pratiquées sur toute la hauteur de la cupule et espacées régulièrement les unes par rapport aux autres. Grâce à la présence de ces micro-rainures le bâton B peut être monté dans la cupule 3 par un outillage industriel classique, sans risque de formation d'un coussin d'air entre le fond 31 de la cupule et la base du bâton B de produit.According to the invention, the internal face of the side wall 32 includes axial micro-grooves 34, here four in number, practiced on all the height of the cup and evenly spaced from each other to others. Thanks to the presence of these micro-grooves, the stick B can be mounted in cup 3 by conventional industrial tools, without risk of an air cushion forming between the bottom 31 of the cup and the base of product stick B.

    A l'intérieur, la paroi latérale cylindrique 32 de la cupule comporte des nervures d'accrochage axiales 35 du bâton B. Comme visible sur la figure 6, ces nervures 35 sont au nombre de 8. Lors du montage du bâton B dans la cupule, ces nervures rentrent dans la base du bâton, renforçant le maintien du bâton dans la cupule.Inside, the cylindrical side wall 32 of the cup has axial attachment ribs 35 of the stick B. As visible on the Figure 6, these ribs 35 are 8 in number. When mounting the stick B in the cup, these ribs fit in the base of the stick, strengthening the retention of the stick in the cup.

    Cette façon de monter le bâton B dans la cupule ne nécessite qu'une force de prise, par l'outillage, modérée du bâton, ne risquant pas d'abímer ce dernier. Cette disposition convient, notamment, au montage d'un bâton de consistance relativement molle, par exemple d'un bâton contenant des silicones volatiles.This way of mounting the stick B in the cup requires only one grip force, by tool, moderate from the stick, not at risk to damage the latter. This arrangement is suitable, in particular, for mounting a stick of relatively soft consistency, for example a stick containing volatile silicones.

    Claims (22)

    1. Stick-holder cup (3) provided with an axis (X), intended for supporting a stick (B) of slakable solid product, including a closed transverse base (31) and a lateral wall (32) connected to this base (31), characterized in that the lateral wall (32) includes, on the inside, at least one substantially axial micro-groove (34) intended for creating a leakage of air when the stick (B) is placed in the cup (3).
    2. Cup (3) according to Claim 1, characterized in that the lateral wall (32) has a cylindrical or prismatic general shape.
    3. Cup (3) according to Claim 1 or 2, characterized in that the micro-groove (34) extends over the entire height of the lateral wall (32).
    4. Cup (3) according to one of Claims 1 to 3, characterized in that it comprises a multitude of micro-grooves (34).
    5. Cup (3) according to one of Claims 1 to 4, characterized in that the micro-grooves (34) are four in number.
    6. Cup (3) according to any one of the preceding claims, characterized in that the lateral wall (32) carries at least one inwardly projecting element (35) intended for fastening the stick (B).
    7. Cup (3) according to Claim 6, characterized in that the projecting element is an axial rib (35).
    8. Cup (3) according to any one of the preceding claims, characterized in that the lateral wall (32) carries at least one external annular sealing bead (36) intended for coming into leaktight contact with a sleeve (4) surrounding the cup (3).
    9. Cup (3) according to Claim 8, characterized in that it also includes entrainment means (33) capable of causing it to slide in the sleeve (4).
    10. Cup (3) according to Claim 9, characterized in that it also includes a central rod (33), carrying an external screw thread (33a), integral with the base (31) of the cup, the rod (33) and the wall (32) of the cup being located on either side of the base (31), the rod (33) constituting the said entrainment means.
    11. Cup (3) according to Claim 10, characterized in that the threaded rod (33) has at least one flat (37).
    12. Case (1) containing a stick (B) of solid, slakable product, including a cup (3) provided with an axis (X), entrainment means (5, 33) capable of giving rise to a sliding of the cup in the case along this axis with a view to controlling, as desired, the return of the said stick (B) of product into the case or its exit from the case, characterized in that the cup (3) is constructed according to one of the preceding claims.
    13. Case according to Claim 12, characterized in that the entrainment means include first means (33) integral with the cup (3) and second entrainment means (5) carried by the case interacting with the first means.
    14. Case according to Claim 13, characterized in that the first means consist of a rod (33) provided with an external screw thread (33a).
    15. Case according to Claim 14, characterized in that it also includes a cylindrical sleeve (4) having a first (4a) and a second (4b) end mounted stationary in translation and movable in rotation, the cup sliding in this sleeve (4), the first end (4a) forming an outlet orifice for the product, the second end (4b) being integral with a holding element (6) interacting with the rod (33), holding the rod in rotation but allowing it to move in translation in this element (6).
    16. Case according to any one of Claims 13 to 15, characterized in that it also includes an external shell (2) with a closed base (21) carrying the second entrainment means (5), these second means (5) being stationary with respect to the external shell (2).
    17. Case according to any one of Claims 13 to 16, characterized in that the second complementary means (5) include an internally threaded bore (51) capable of interacting with the screw thread (33a) of the rod (33).
    18. Case according to Claim 16 or 17, characterized in that it also includes a cap (7) capable of closing the external shell (2).
    19. Case according to Claim 16, characterized in that the cap (7) includes leaktight means (8) capable of pressing, in a leaktight manner, against the external wall of the cylindrical sleeve (4).
    20. Case according to Claim 19, characterized in that the leaktight means (8) consist of at least one annular ribbing (8a, 8b, 8c).
    21. Case according to either of claims 12 or 20, characterized in that the product is a make-up or care product containing at least one volatile component.
    22. Lipstick case, characterized in that it is in accordance with any one of Claims 12 to 21.
    EP97401399A 1996-06-26 1997-06-18 Stick holder cup for a lip product stick and case with such a device Expired - Lifetime EP0815766B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9607946 1996-06-26
    FR9607946A FR2750302B1 (en) 1996-06-26 1996-06-26 STICK HOLDER CUP FOR A LIP PRODUCT STICK AND CASE SO EQUIPPED

    Publications (2)

    Publication Number Publication Date
    EP0815766A1 EP0815766A1 (en) 1998-01-07
    EP0815766B1 true EP0815766B1 (en) 1999-03-17

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    EP97401399A Expired - Lifetime EP0815766B1 (en) 1996-06-26 1997-06-18 Stick holder cup for a lip product stick and case with such a device

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    US (1) US5888004A (en)
    EP (1) EP0815766B1 (en)
    DE (1) DE69700143T2 (en)
    ES (1) ES2130871T3 (en)
    FR (1) FR2750302B1 (en)

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    Publication number Publication date
    DE69700143D1 (en) 1999-04-22
    US5888004A (en) 1999-03-30
    FR2750302B1 (en) 1998-08-07
    ES2130871T3 (en) 1999-07-01
    FR2750302A1 (en) 1998-01-02
    DE69700143T2 (en) 1999-07-01
    EP0815766A1 (en) 1998-01-07

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