Device for cosmetics and container for applying cosmetics

Abstract

The present invention proposes a device (10) for a cosmetic product and a container for applying the cosmetic product. The device (10) is designed to dispense the cosmetic product by means of at least one rotational movement. The device (10) comprises at least one guide member (14), a cup-shaped member (30) intended to receive the cosmetic product, and a sheath (40) which internally comprises at least one helical groove (42, 44), and the guide member (14) is rotatably mounted in the sheath (40), the rotation of the guide member (14) relative to the sheath (40) causing an axial movement of the cup-shaped member (30) between a fully extended position and a fully retracted position. The device (10) comprises at least one rotation locking device for locking the rotation of the guide member (14) relative to the sheath (40) when the cup-shaped member (30) is in the fully extended position and / or the fully retracted position and / or close to the fully extended position and / or close to the fully retracted position.

Description

Technical Field

[0001] The present invention relates to a device (also referred to as a mechanism) for the packaging of a cosmetic product, such as a cosmetic stick, in particular a lipstick.

[0002] More specifically, the present invention relates to a device intended to be mounted on a base for actuating a cosmetic application container, the device comprising: at least one first element, generally referred to as a guide; a cup-shaped member intended to receive the cosmetic stick; and a second element, generally referred to as a sheath, wherein rotation of the guide relative to the sheath causes axial movement of the cup-shaped member, thereby causing the departure and / or entry of the cosmetic product. Background Art

[0003] This type of device is known in the prior art for packaging cosmetic products such as cosmetic sticks (in particular but not limited to lipsticks).

[0004] The stick is held in the cup-shaped member by the base of the device, which axially slides between at least one retracted position and a position for applying the cosmetic product (in which at least a part of the cosmetic product projects axially out of the device).

[0005] In a known manner, this kinematics is obtained by a rotary mechanism comprising a guide and a sheath mounted concentrically, one of the guide and the sheath comprising at least one chute and the other comprising at least one helical groove, the at least one chute and the at least one helical groove being respectively radially traversed by at least one lug integral with the cup-shaped member supporting the stick.

[0006] The cup-shaped member generally comprises a pair of lugs arranged diametrically opposite each other, the guide is provided with two chutes, and the sheath is provided with two helical grooves.

[0007] Actuation of the mechanism is generally manually controlled by applying a rotary movement to the base of the device, which is transmitted to the mechanism so as to axially displace the cup-shaped member containing the cosmetic product.

[0008] When the mechanism is actuated, if the actuation is forced, the lugs of the cup-shaped member may come out of the chutes and / or helical grooves, especially at the end of the stroke, especially in the retracted position.

[0009] Generally, the cup-shaped member is made of polyoxymethylene (POM) or acrylonitrile butadiene styrene (ABS), while the other elements are made of different materials. Despite the relative differences in hardness between the components, it is regularly observed that the lugs of the cup-shaped member emerge from the helical grooves of the sheath and / or the chutes of the guide.

[0010] Moreover, this problem also exists when using an assembly made of a single material (i.e., an assembly in which the cup-shaped member, the sheath, and the guide are all made of the same material, particularly a plastic material).

[0011] Using the same material to manufacture the assembly is of particular concern for recycling after using cosmetics. In fact, there are two different materials, and there are drawbacks during recycling when the two components must be separated.

[0012] The object of the present invention is particularly to provide a solution that can solve at least some of the drawbacks of the prior art, in particular a solution that can avoid deterioration of the device when the user forcibly actuates it (especially when the user forcibly rotates and actuates it). Summary of the Invention

[0013] Accordingly, the present invention relates to a device designed to be mounted on a base for actuating a cosmetic application container (especially a cosmetic stick application container), the device being designed to cause a cosmetic to extend by at least one rotational movement, the device including at least one guide, a cup-shaped member designed to receive the cosmetic, and a sheath that includes at least one helical groove on the inside, and the guide is rotatably mounted in the sheath, and rotation of the guide relative to the sheath causes the cup-shaped member to move axially between a fully extended position and a fully retracted position.

[0014] According to the present invention, the device includes at least one rotational locking device for locking the rotation of the guide relative to the sheath when the cup-shaped member is in the fully extended position and / or the fully retracted position and / or close to the fully extended position and / or close to the fully retracted position.

[0015] The fully retracted position corresponds to the position where the cosmetic is located inside the device for protecting and storing the cosmetic, and the cup-shaped member is at the end position of the bottom stroke.

[0016] The fully extended position corresponds to the position where the cosmetic extends axially upward such that the free end of the cosmetic extends out of the device through an opening, and the cup-shaped member is at the end position of the top stroke.

[0017] "Close to" means being close to the fully extended position or the fully retracted position within a short distance.

[0018] Thus, when the cup-shaped member is at the end of the top stroke or the bottom stroke or close to the end of the top stroke or the bottom stroke, the locking device prevents the rotation of the guide member relative to the sheath. Thus, in the case where the user forces the device to rotate, it is not the cup-shaped member but the rotational locking device located between the guide member and the sheath that acts as the end-of-stroke locking device. This limits any risk of deterioration of the device, in particular of the cup-shaped member, such as deformation and / or premature wear leading, for example, to the accidental detachment of the cup-shaped member from the device, which would cause the failure of the device.

[0019] According to various embodiments of the invention, these embodiments can adopt the following features jointly or individually:

[0020] - The guide member, the cup-shaped member and the sheath are made of plastic material,

[0021] - The guide member, the cup-shaped member and the sheath are made of the same plastic material,

[0022] - The plastic material is polypropylene,

[0023] - The device has an upper part close to the opening of the device and an opposite lower part, through which the cosmetic product projects,

[0024] - The rotational locking device is located at the upper part of the device,

[0025] - The rotational locking device is located at the lower part of the device,

[0026] - The rotational locking device includes a plurality of stoppers configured to cooperate together,

[0027] - At least one of the stoppers is located on the guide member and cooperates with at least one other stopper located on the sheath,

[0028] - The shape of at least one stopper on the guide member is complementary to the shape of at least one stopper on the sheath to cooperate together,

[0029] - One of the plurality of stoppers is a leg axially projecting from the base towards the free end, and / or another of the plurality of stoppers is a radially additional material thickness,

[0030] - At least one stopper on the guide member is a leg axially projecting from the base to the free end,

[0031] - At least one stopper on the sheath is a radially additional material thickness projecting towards the inside of the device,

[0032] - At least one stopper on the guide member is a radially additional material thickness projecting towards the outside of the device,

[0033] - At least one stop on the sheath is a leg that projects axially from the base to the free end,

[0034] - The leg has a wide base and a narrow free end,

[0035] - The leg includes two sides that extend between the base and the free end,

[0036] - At least one of the sides of the leg is vertical and mates with the vertical side of the radially additional material thickness,

[0037] - When the cup-shaped member is in the fully retracted position and / or close to the fully retracted position, at least one of the sides of the vertical leg mates with the vertical side of the radially additional material thickness,

[0038] - The other side of the leg is inclined and mates with the inclined side of the radially additional material thickness,

[0039] - When the cup-shaped member is in the fully extended position and / or close to the fully extended position, at least one of the sides of the inclined leg mates with the inclined side of the radially additional material thickness,

[0040] - The cup-shaped member includes at least one lug that projects radially outward and mates with at least one chute of the guide,

[0041] - The at least one chute and the at least one lug are configured to act as a rotational locking device for locking the rotation of the cup-shaped member relative to the guide when the cup-shaped member is in the fully extended position and / or the fully retracted position and / or close to the fully extended position and / or close to the fully retracted position,

[0042] - The at least one lug has two parallel flat portions that are configured to mate with the wall of at least one helical groove of the sheath,

[0043] - The flat portions have an inclination similar to the inclination of the path of the helical groove.

[0044] The present invention also relates to a container for applying cosmetics, the container including a cap and an actuating base, the actuating base including the device as described above, and the actuating base enabling actuation of the device so that cosmetics can enter and / or exit. Description of the Drawings

[0045] The present invention will be better understood and other features and advantages thereof will become apparent by referring to the following detailed description of at least one embodiment of the present invention given by way of pure illustration and non-limiting example while reading with reference to the schematic drawings, in which:

[0046] Figure 1Perspective view of the guide, sheath and cup for forming a cosmetic stick according to the first embodiment, wherein the cup is in the fully extended position;

[0047] Figure 2 is Figure 1 Perspective view of the assembly device;

[0048] Figure 3 is Figure 2 Detail view of the assembly device;

[0049] Figure 4 is Figure 2 Cross-sectional view A-A of the assembly device;

[0050] Figure 5 is according to Figure 1 Perspective view of the assembly device according to the first embodiment, wherein the cup is in the fully retracted position;

[0051] Figure 6 is Figure 5 Detail view of the assembly device;

[0052] Figure 7 is Figure 5 Cross-sectional view B-B of the assembly device;

[0053] Figure 8 Perspective view of the guide and sheath for forming a cosmetic stick according to the second embodiment;

[0054] Figure 9 is Figure 8 Longitudinal cross-sectional view of the assembly device, wherein the cup (not shown) is in the fully extended position;

[0055] Figure 10 is Figure 9 Detail view of the assembly device;

[0056] Figure 11 is Figure 9 Cross-sectional view C-C of the assembly device;

[0057] Figure 12 is according to Figure 8 Perspective view of the assembly device according to the second embodiment, wherein the cup is in the fully retracted position;

[0058] Figure 13 is Figure 12 Longitudinal cross-sectional view of the assembly device;

[0059] Figure 14 is Figure 13 Detail view of the assembly device;

[0060] Figure 15 is Figure 13 a D-D cross-sectional view of an assembly device of;

[0061] Figure 16 shows Figure 8 a perspective detail view of the lugs of the cup-shaped part of the device of. Detailed Description of the Invention

[0062] By convention, the "axial" direction corresponds in the drawings to the direction of the main axis A of the device (also called the mechanism), which is intended to be mounted on a base for actuating a cosmetic application container (such as a cosmetic stick, in particular a lipstick), and the "radial" direction is orthogonal to the axial direction.

[0063] In the following detailed description of the drawings, the terms "upper" and "lower" or "top" and "bottom" will be used in a non-limiting manner with reference to the axial direction, and the upper part of the device corresponds to the part through which the cosmetic stick projects from the device for application.

[0064] Similarly, the terms "outer or external" and "inner or internal" are used with reference to the radial direction, and the external elements are more radially distant from the axis A compared to the internal elements.

[0065] Figures 1 to 7 Shows a first embodiment of the device 10, which is intended to be mounted on a base for actuating a cosmetic application container according to the invention.

[0066] Figures 8 to 15 Shows a second embodiment of the device 10, which is intended to be mounted on a base for actuating a cosmetic application container according to the invention.

[0067] Preferably, the cosmetic (shown in dashed lines in Figure 2 ) is a cosmetic stick 12, and more specifically, the cosmetic stick 12 is a lipstick or lip balm intended to be applied by friction.

[0068] The device 10 is designed to project the cosmetic by at least one rotational movement.

[0069] The device 10 has an axis A known as the main axis.

[0070] The device 10 includes at least one first element, which is generally and hereinafter referred to as the guide 14.

[0071] The guide 14 mainly includes a tubular body 16 that axially extends from a hub 18 forming the lower end of the guide 14 to an upper exit opening 20 intended to be penetrated by the cosmetic stick 12.

[0072] For example, the outer surface of the hub portion 18 is provided with stripes, for example, to facilitate the manipulation of the device 10 during use.

[0073] Preferably, the guide member 14 includes two sliding grooves, namely a first sliding groove 22 and a second sliding groove 24, which are formed by grooves radially passing through the wall of the main body 16 and are arranged diametrically opposite to each other.

[0074] The sliding grooves 22, 24 extend axially in the main body 16 of the guide member 14. The first sliding groove 22 is axially closed at its upper end, while the second sliding groove 24 is open. The sliding grooves 22, 24 are closed at their lower ends located on the side of the hub portion 18.

[0075] Each of the sliding grooves 22, 24 includes straight and parallel edges. The first sliding groove 22 includes an upper recess 26a at one of its axial ends and a lower recess 28a at the other axial end, and the recesses 26a, 28a extend circumferentially.

[0076] In two exemplary embodiments, the second sliding groove 24 also includes an upper recess 26b and a lower recess 28b.

[0077] In a conventional system, the recesses 26a, 26b, 28a, 28b are designed to form a travel end locking device for the cup-shaped member 30.

[0078] As Figure 2 shown, the device 10 includes a cup-shaped member 30 that receives the cosmetic stick 12.

[0079] The cup-shaped member 30 is designed to be axially slidably mounted in the guide member 14 between a fully retracted position and a fully extended position.

[0080] The fully retracted position corresponds to the position where the stick 12 is located inside the device 10 for protecting and storing the stick, and the cup-shaped member 30 is located at the bottom travel end position as shown in Figure 12 and Figure 13 shown.

[0081] The fully extended position corresponds to the position where the stick 12 axially extends upward such that the free end of the stick extends out of the device 10 through the opening 20, and the cup-shaped member 30 is in the top travel end position as shown in Figure 1 and Figure 2 shown.

[0082] The cup-shaped member 30 can also be in an intermediate retracted position and an intermediate extended position called an intermediate application position.

[0083] The intermediate retracted position corresponds to the position where the rod 12 is located inside the device 10 for protecting and storing the rod, but the cup 30 is not at the end of the bottom stroke.

[0084] The intermediate application position corresponds to the position where the rod 12 projects axially upward such that the free end of the rod projects through the opening 20 out of the device 10 and is capable of applying cosmetics.

[0085] Preferably, the cup 30 includes two radially outwardly projecting lugs 32 which respectively engage and pass through one of the chutes 22, 24 of the guide 14 to extend radially outwardly beyond the outer surface of the body 16 of the guide 14.

[0086] The cup 30 includes a cylindrical wall which, at a given height, axially extends to define a housing and a bottom, the housing receiving the lower portion of the rod 12.

[0087] In a variant (not shown), the cup is made of two parts, namely an upper cup and a lower cup. The upper cup is intended to receive the cosmetic rod, and the lower cup, sometimes referred to as a "cup motor", cooperates with the mechanism of the device to ensure sliding between the retracted position and the application position.

[0088] In this alternative, the two parts of the cup are integrally connected to each other, for example, by interlocking.

[0089] The device 10 includes a second element which, hereinafter, is referred to as a sheath 40. As shown here, the sheath 40 has a cylindrical shape.

[0090] The sheath 40 can receive an outer sleeve (not shown), and the sheath 40 and the sleeve are attached together by a force fit or alternatively, for example, using an adhesive, while the sheath 40 is inserted and rotationally fixed within the outer sleeve.

[0091] Therefore, in the remainder of this specification, the term "sheath" should be interpreted in a non - restrictive manner as also referring to an assembly consisting of the sheath 40 and such a sleeve.

[0092] Preferably, the sheath 40 includes diametrically opposed helical grooves 42, 44 on its interior, and the free ends of the lugs 32 of the cup 30 cooperate with these helical grooves during operation. The sheath 40 includes an inner wall 46 provided with the helical grooves 42, 44.

[0093] The sheath 40 includes an upper edge 50 at its upper axial end and a lower edge 52 at its lower axial end, and the edges 50 and 52 are circumferentially continuous.

[0094] The sheath 40 is designed to be mounted on the guide 14 by snap - fit to obtain the device 10 as shown especially in Figure 2 、 Figure 5 and Figure 13 the device 10 shown in.

[0095] The guide 14 is rotatably mounted in the sheath 40.

[0096] In such a device 10, the guide 14 is rotated relative to the sheath 40 by means of the hub 18 of the device so that the cup - shaped member 30 moves axially, more precisely so that the cup - shaped member 30 moves upward or downward according to the direction of rotation.

[0097] The cosmetic stick 12 moves axially with the cup - shaped member 30 between a fully extended position and a fully retracted position.

[0098] In the two embodiments shown, the guide 14, the cup - shaped member 30 and the sheath 40 are advantageously made of plastic material.

[0099] Preferably, the guide 14, the cup - shaped member 30 and the sheath 40 are made of the same plastic material.

[0100] The plastic material can be selected from polypropylene (PP), polyethylene terephthalate (PET), recycled polyethylene terephthalate (R - PET), thermoplastic elastomer (TPE), polyethylene (PE) such as low - density polyethylene (LDPE) and / or high - density polyethylene (HDPE), composite materials, post - consumer recycled (PCR) materials, etc.

[0101] These plastic materials especially include plastic materials with a hardness between 70 Shore A and 90 Shore D.

[0102] Preferably, the plastic material is polypropylene and / or polyethylene terephthalate, whether recycled polypropylene and / or polyethylene terephthalate or not.

[0103] Thus, advantageously, all components of the device 10 are made of plastic material, which is preferably selected from polypropylene and / or polyethylene terephthalate.

[0104] The components made of plastic material can be easily obtained by injection molding and form a lightweight device 10.

[0105] In addition, using plastic material, especially similar plastic material for the whole device 10, is beneficial for recycling. In particular, polypropylene and polyethylene terephthalate are two plastic materials whose recycling cycles are well - known.

[0106] The guide member 14 axially includes a radially outwardly extending flange 54 at its upper end.

[0107] The flange 54 circumferentially interrupts at the upper open end of the chute 24, whereby the guide member 14 can be radially deformed to facilitate the installation of the sheath 40 before the sheath 40 returns to its original shape.

[0108] According to the present invention, in the two illustrated embodiments, the device 10 includes a rotational locking device for rotationally locking the guide member 14 relative to the sheath 40 when the cup-shaped member 30 is in the fully extended position and / or the fully retracted position and / or close to the fully extended position and / or close to the fully retracted position.

[0109] "Close to" means being on the verge of the fully extended position or the fully retracted position within a short distance.

[0110] Advantageously, the rotational locking device is located at the upper part 56 of the device 10 and / or at the lower part 58 of the device 10.

[0111] The upper part 56 of the device 10 is positioned towards the opening 60 of the device 10, which opening is intended to be penetrated by the cosmetic stick 12 and through which the cosmetic extends.

[0112] The lower part 58 is the part opposite to the upper part 56, and the hub 18 is located at this lower part.

[0113] Advantageously, the rotational locking device includes a plurality of stoppers configured to cooperate together.

[0114] In particular, at least one of the stoppers is located on the guide member 14 and cooperates with at least one other stopper located on the sheath 40.

[0115] Therefore, the shape of at least one stopper of the guide member 14 and the shape of at least one stopper of the sheath 40 can be complementary to cooperate together.

[0116] In the first embodiment, the rotational locking device is located at the lower part 58 of the device 10. The rotational locking device is two stoppers, one of the two stoppers is located on the guide member 14 and the other is located on the sheath 40.

[0117] The stopper located on the guide member 14 is a radially additional material thickness 62 protruding from the outer surface 64 of the guide member 14. The additional thickness 62 is provided in the lower part 58 of the guide member 14 and is axially positioned above the hub 18 of the guide member 14.

[0118] The additional thickness 62 has an elongated shape and axially extends from the hub 18 towards the opening 56 of the device 10.

[0119] The additional material thickness 62 includes a vertical side portion 66 and an inclined side portion 68. In other words, the additional thickness 62 has a generally trapezoidal shape.

[0120] The stop located on the sheath 40 is a leg 70 that projects axially from the lower edge 52 of the sheath 40. The leg 70 extends from a wide base to a narrow free end at the lower edge of the sheath 40.

[0121] The leg 70 includes a vertical side portion 72 and an inclined side portion 74. In other words, the leg 70 has a generally trapezoidal shape.

[0122] In this first embodiment, as Figure 5 and Figure 6 shown, when the cup-shaped member 30 is in the fully retracted position and / or close to the fully retracted position, the vertical side portion 72 of the leg cooperates with the vertical side portion 66 of the radial additional material thickness 62.

[0123] Therefore, when the cup-shaped member 30 is at the end of the bottom stroke or reaches the end of the bottom stroke, the two stops 62, 70 come into contact. Therefore, in the downward direction of the cup-shaped member 30, the rotation of the guide 14 relative to the sheath 40 is prevented, thereby locking the rotation of the cup-shaped member 30 in the downward direction.

[0124] Therefore, compared with the conventional devices of the prior art, the stops 62, 70 rather than the lugs 32 of the cup-shaped member 30 are used as the end-of-stroke locking members. This limits any risk of failure of the cup-shaped member 30, especially limits the risk of the lugs 32 coming out of the chutes 22, 24 of the guide 14 and / or from the spiral grooves 42, 44 of the sheath 40.

[0125] The fully retracted position is the most stressed position of the cup-shaped member 30 and is the position with the greatest risk of failure because the cup-shaped member 30 inside the device 10 is not visible. In this position, the vertical side portions 66, 72 of the stops 62, 70 come into contact with each other, thereby enabling greater strength to be absorbed.

[0126] As Figure 2 and Figure 3As shown, when the cup-shaped member 30 is in the fully extended position and / or close to the fully extended position, the cooperating parts are the inclined side 74 of the leg 70 and the inclined side 68 of the radial additional material thickness 62. In other words, at the end point of the upward stroke of the cup-shaped member 30, the two inclined sides 68, 74 of the stoppers 62, 70 come into contact, thereby locking the upward rotation of the guide 14 relative to the sheath 40, and thus locking the upward movement of the cup-shaped member 30. Similarly, the stoppers 62, 70 serve as the end-stroke locking members, rather than the lugs 32 of the cup-shaped member 30. This limits any risk of failure of the cup-shaped member 30, especially the risk of the lugs 32 coming out of the sliding grooves 22, 24 of the guide 14 and / or the helical grooves 42, 44 of the sheath 40.

[0127] In the second embodiment, the principle of rotational locking is similar. Similarly, the lugs 32 of the cup-shaped member 30 do not serve as the end-stroke locking members, but the stoppers located on the sheath and the guide. This limits any risk of failure of the cup-shaped member 30, especially the risk of the lugs 32 coming out of the sliding grooves 22, 24 of the guide 14 and / or the helical grooves 42, 44 of the sheath 40.

[0128] The second embodiment is different from the first embodiment in the position and shape of the stoppers.

[0129] In the second embodiment, the rotational locking device is located at the upper part 56 of the device 10. The rotational locking device is two stoppers, one of which is located on the guide 14 and the other is located on the sheath 40.

[0130] The stopper located on the guide 14 is a leg 76 that axially protrudes from the upper edge 54 of the guide 14. The leg 76 extends from the upper edge 54 of the guide 14 at the recess 26b and at the interruption on the circumference of the edge 54.

[0131] The leg 76 extends from a wide base to a narrow free end at the upper edge 54 of the guide 14.

[0132] The leg 76 includes a vertical side 78 and an inclined side 80. In other words, the leg 76 has a generally triangular shape.

[0133] The stopper located on the sheath 40 is a radial additional material thickness 82 that protrudes from the inner surface of the sheath 40. The additional thickness 82 is provided in the upper part 56 of the sheath 40.

[0134] The additional thickness 82 is elongated and extends circumferentially at the upper edge 50 of the sheath 40. The additional material thickness 82 has a vertical side 84 and an inclined side 86. In other words, the additional thickness 82 has a generally triangular shape.

[0135] As in the first embodiment, as Figure 13 and Figure 14 shown, when the cup-shaped member 30 is in the fully retracted position and / or close to the fully retracted position, the vertical side 78 of the leg 76 mates with the vertical side 84 of the radial additional material thickness 82.

[0136] As Figure 9 and Figure 10 shown, when the cup-shaped member 30 is in the fully extended position and / or close to the fully extended position, the mating is between the inclined side 80 of the leg 76 and the inclined side 86 of the radial additional material thickness 82.

[0137] Advantageously, in each embodiment, the stoppers 62, 70, 76, 82 have vertical sides 66, 72, 78, 84 and inclined sides 68, 74, 80, 86, which means a generally triangular or trapezoidal shape.

[0138] This specific shape with a wide base enables strengthening the strength of the stoppers 62, 70, 76, 82 to prevent these stoppers from breaking, especially when the user forces these stoppers to rotate.

[0139] In addition, the inclined sides 68, 74, 80, 86 enable restricting the reduction of the rotational movement of the cup-shaped member 30. Due to this specific shape, the stoppers 62, 70, 76, 82 do not interfere with the rising and falling of the cup-shaped member 30, and the rising and falling of the cup-shaped member can be completed with the same amplitude as in a conventional device.

[0140] The stoppers 62, 70, 76, 82 are configured such that in the fully retracted position of the cup-shaped member 30 (the position most needed by the user), the vertical sides 66, 72, 78, 84 mate, thereby enabling absorption of greater strength.

[0141] Furthermore, in each of the two embodiments shown, the two lugs 32 of the cup-shaped member 30 are of generally circular shape and advantageously have two parallel flat portions 90, which are configured to mate with the walls 92 of the helical grooves 42, 44 of the sheath 40.

[0142] Preferably, as can be seen in Figure 16 the flat portions 90 have an inclination similar to the inclination of the path of the helical grooves 42, 44.

[0143] In other words, each lug 32 extends in a direction similar to the direction of the helical groove 42, 44 with which it engages.

[0144] This specific shape of the lugs 32 is adapted to the shape of the helical grooves 42, 44 to facilitate the sliding of these lugs and to enable these lugs to be received in these helical grooves without coming out even when the user forces rotation. This reduces the risk of malfunction of the cup-shaped member 30.

[0145] The device 10 is intended to be a component of a container (not shown), also called a housing, for cosmetics.

[0146] Generally, the container includes a cap associated with an actuating base having a complementary shape, and the base and the cap together define the outer contour of the container.

[0147] The container further includes the device 10 for dispensing a cosmetic stick as described above.

[0148] By way of non-limiting example, the cap and the base of the container and the device 10 have a cylindrical shape with a circular cross-section.

[0149] Preferably, the cap is removable. The cap is likely to occupy at least one open position and a closed position, in the open position, the cap is separated from the base, in particular for applying cosmetics, and in the closed position, the cap is integral with the base.

Claims

1. A device (10) designed to be mounted on a base for actuating a cosmetic application container, the device (10) being designed to dispense a cosmetic by at least one rotational movement, the device (10) comprising at least one guide (14), a cup-shaped member (30) designed to receive the cosmetic, and a sheath (40), the sheath (40) including at least one helical groove (42, 44) therein, and the guide (14) being rotatably mounted in the sheath (40), rotation of the guide (14) relative to the sheath (40) causing the cup-shaped member (30) to move axially between a fully extended position and a fully retracted position. The device (10) includes at least one rotational locking device for locking the rotation of the guide (14) relative to the sheath (40) when the cup-shaped member (30) is in the fully extended position and / or the fully retracted position and / or close to the fully extended position and / or close to the fully retracted position. Among them, The rotational locking device includes a plurality of stoppers (62, 70, 76, 82), the plurality of stoppers being configured to cooperate together, at least one of the stoppers (62, 70, 76, 82) being located on the guide (14) and cooperating with at least one other stopper of the stoppers (62, 70, 76, 82) located on the sheath (40), one of the plurality of stoppers (62, 70, 76, 82) being a leg (70, 76) projecting axially from a base towards a free end, and / or another of the plurality of stoppers (62, 70, 76, 82) being a radial additional material thickness (62, 82). Wherein, the leg (70, 76) includes two sides extending between the base and the free end, at least one of the sides (72, 78) of the leg (70, 76) being vertical and cooperating with the vertical side (66, 84) of the radial additional material thickness (62, 82), and the other of the sides (74, 80) of the leg (70, 76) being inclined and cooperating with the inclined side (68, 86) of the radial additional material thickness (62, 82).

2. The device (10) according to claim 1, wherein, The guide (14), the cup-shaped member (30) and the sheath (40) are made of a plastic material.

3. The device (10) according to claim 2, wherein, The plastic material is polypropylene.

4. The device (10) according to any one of claims 1 to 3, wherein, The device (10) has an upper part (56) close to an opening (60) of the device (10) and an opposite lower part (58), the cosmetic being dispensed through the opening, and the rotational locking device is located at the upper part (56) of the device (10) and / or at the lower part (58) of the device (10).

5. The device (10) according to claim 1, wherein, The shape of at least one stopper (62, 76) on the guide (14) is complementary to the shape of at least one stopper (70, 82) on the sheath (40) to cooperate together.

6. The device (10) according to any one of claims 1 to 3, wherein, The cup-shaped member (30) includes at least one lug (32), the at least one lug protruding radially outwardly and cooperating with at least one chute (22, 24) of the guide member (14), the at least one chute (22, 24) and the at least one lug (32) being configured to serve as the rotational locking device for rotationally locking the cup-shaped member (30) relative to the guide member (14) when the cup-shaped member (30) is in the fully extended position and / or the fully retracted position and / or close to the fully extended position and / or close to the fully retracted position.

7. The apparatus (10) according to claim 6, wherein, The at least one lug (32) has two parallel flat portions (90), the flat portions being configured to cooperate with walls (92) of at least one helical groove (42, 44) of the sheath (40).

8. The apparatus (10) according to claim 7, wherein, The flat portions (90) have an inclination similar to the inclination of the path of the helical groove (42, 44) of the sheath (40).

9. The device (10) according to claim 1, wherein, The cosmetic is a cosmetic stick (12).

10. A container for applying a cosmetic, the container comprising a cap and an actuating base, the actuating base including the device (10) according to any one of claims 1 to 9, the actuating base enabling actuation of the device (10) so that the cosmetic can enter and / or exit.

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