FR3066081A1 - CASE FOR APPLYING A COSMETIC PRODUCT AND TOGETHER FOR SUCH A CASE - Google Patents

Abstract

The invention relates to a case (10) for applying a cosmetic product (12) and an assembly intended to be mounted in such an application case (10) comprising at least one base (16) which comprises a first element (36) of a magnetic system (32), said assembly comprising at least one mechanism (20) for dispensing said cosmetic product (12) provided with an actuating wheel (30) and an intermediate piece (34) which comprises a second element (38) of said magnetic system (32) for reversibly connecting said wheel (30) to the base (16) to allow a change of said mechanism (20), characterized in that the intermediate piece (34) is configured to radially present a size that is less than or equal to the outer diameter (D) of the wheel (30) below which said intermediate piece (34) is arranged axially.

Description

"Case for applying a cosmetic product and set for such a case"

TECHNICAL FIELD OF THE INVENTION The invention relates to a case for applying a cosmetic product and an assembly for such a case. The invention relates more particularly to an assembly intended to be mounted in a case for applying a cosmetic product comprising at least one base which comprises a first element of a magnetic system, said assembly comprising at least one mechanism for the distribution of said cosmetic product provided with an actuating wheel and an intermediate piece which comprises a second element of said magnetic system intended to link said wheel reversibly to the base to allow a change of said mechanism. The invention also relates to a case for applying a cosmetic product comprising at least one cover, a base and such an assembly.

STATE OF THE ART

Examples of cases for applying a cosmetic product comprising a dispensing mechanism, known as "interchangeable", are known from the prior art.

Compared with a single-use application case, such a case is characterized by being rechargeable, that is to say designed to allow a change of the mechanism, in particular but not exclusively after complete use of the product. cosmetic. The interchangeability of the dispensing mechanism also makes it possible to use, independently of a complete use, the same case with several dispensing mechanisms each comprising, for example, a different cosmetic product such as a lipstick stick of a given shade. .

Such a design makes it possible to keep the cover and the base of the case, which is particularly advantageous when these parts are made of precious and / or decorated materials, for example covered with a covering, which by comparison makes them parts. more expensive to manufacture.

In addition, the cover and the base are the visible external parts of the case which determine its general aesthetic and therefore its originality.

In such a case, the interchangeable mechanism for dispensing the cosmetic product constitutes in particular a cartridge or refill that can be changed freely.

In the state of the art, various solutions have been proposed to ensure a reversible, removable connection between the base of such a case and an actuating wheel of the mechanism for dispensing the cosmetic product.

According to a first solution, the reversible connection is provided by a mechanical system allowing the mechanism and the base to be dismantled.

According to a second solution, more particularly targeted by the present invention, the reversible connection is provided by a magnetic system using a magnetic attraction force to link the base and the mechanism together, more precisely the base with the actuating wheel of the mechanism. .

A magnetic system is known from the state of the art, comprising an intermediate piece configured as a sleeve having magnetic properties. The sleeve is intended to be associated with a magnet carried by the base to reversibly link the mechanism and the base of the case in order to allow a change of the mechanism.

In this magnetic system, the sleeve is fixed to the mechanism wheel by tightening or gluing a tubular part of said sleeve around the wheel.

The mechanism and the sleeve thus fixed to the mechanism wheel then form a unitary assembly.

Such a magnetic system comprising a sleeve mounted around the wheel has the disadvantage of having to provide a specific sleeve for each dispensing mechanism.

The manufacturing of the system cannot therefore be standardized, in particular to reduce costs. Such a magnetic system therefore requires as many specific sleeves as there are distribution mechanisms having a different external diameter.

In addition, the fact that the sleeve surrounds the wheel of the mechanism leads to increasing the external diameter of the mechanism at the level of the wheel.

Attaching the sleeve to the mechanism wheel by tightening or gluing also does not allow the sleeve to be reused, especially after complete use of the cosmetic product dispensed by the mechanism.

The object of the present invention is in particular to propose a new design of magnetic system for changing the mechanism in an application case making it possible to solve the drawbacks of the prior art and very particularly to be able to use an intermediate connecting piece with several mechanisms with different diameters.

BRIEF SUMMARY OF THE INVENTION

For this purpose, the invention provides an assembly of the type described above, characterized in that the intermediate piece is configured to present radially a space requirement which is less than or equal to the external diameter of the wheel below which said intermediate piece is arranged axially. .

According to the invention, the intermediate piece of the magnetic system has a radial dimension which is less than or equal to the radial dimension of the mechanism, in particular of the actuating wheel.

Advantageously, the intermediate connecting part is configured to be linked from the inside to the wheel, whereby said part does not extend radially beyond the external diameter of the mechanism, more precisely the external diameter of the wheel.

An intermediate connecting piece produced in accordance with the teachings of the invention is thus capable of being used with a mechanism having the same external diameter but also any other mechanism having a greater external diameter. The intermediate piece is therefore standardized.

Advantageously, the intermediate piece comprises fixing means designed to allow disassembly with respect to the thumb wheel of the mechanism with which said piece forms an assembly according to the invention so that the intermediate piece is then also capable of being used with another mechanism.

According to other characteristics of the invention: - said intermediate part comprises at least one housing in which is mounted said second element of the magnetic system; - Said intermediate piece comprises locking means, such as lugs, for axially maintaining said second element in the housing; - The intermediate piece includes fixing means for axially connecting said intermediate piece with the knob of the mechanism; - The fixing means comprise at least two tabs, preferably three, which are intended to be introduced axially into an orifice of the wheel; - The intermediate piece is configured to axially form an air gap between the first element and the second element of the magnetic system; the intermediate piece comprises meshing means intended to cooperate with complementary means of the dial to link in rotation said intermediate piece and the dial of the mechanism; - the meshing means are distinct from the means for fixing the intermediate piece; - The means for meshing the intermediate piece include a toothing, for example formed by three toothed sectors. The invention also provides a case for applying a cosmetic product comprising at least one cover, a base and an assembly according to the invention, characterized in that said assembly is linked to the base by a magnetic attraction force s 'exerting between the first element associated with the base and the second complementary element associated with the intermediate piece.

Advantageously, an interchangeable assembly according to the invention is easily removable. More particularly, the magnetic system makes it possible to change at will and reliably the dispensing mechanism of the cosmetic product.

Preferably, the intermediate piece is fixed in a non-removable manner with the wheel of the mechanism to obtain a unitary assembly after its fixing, thanks to which the change of the mechanism present in the case is further facilitated.

BRIEF DESCRIPTION OF THE FIGURES Other characteristics and advantages of the invention will appear during the reading of the detailed description which will follow for the understanding of which reference will be made to the appended drawings in which: - Figures 1 and 2 are views in perspective which represent, in exploded view, an exemplary embodiment of a case for applying a cosmetic product and which illustrate a magnetic system to allow the change of the dispensing mechanism mounted in such a case; - Figure 3 is an exploded view which shows a case according to Figures 1 and 2 and which illustrates, in axial section, the main parts of the case comprising a cover, a mechanism, an intermediate part of the magnetic system and a base; - Figure 4 is an axial sectional view which represents the case according to the exemplary embodiment and which illustrates, after assembly, said main parts of the case including the assembly formed by the mechanism and the intermediate part; - Figure 5 is a perspective view which shows, in section, the cover of the case and which illustrates the cavity intended to receive the base of the intermediate piece and the housing in which the magnet is mounted (made transparent ) the magnetic system; - Figure 6 is a perspective view which represents the intermediate connecting part between the base and the wheel of the mechanism and which illustrates the polygonal base, the fixing lugs and the gear teeth; - Figure 7 is a perspective view which shows, in section, the intermediate piece and which illustrates the housing in which is mounted the plate of ferromagnetic material of the magnetic system; - Figure 8 is a perspective view which shows, in axial section, the intermediate part (without the mechanism) mounted in the base and which illustrates the magnetic system formed by the magnet and the plate separated axially from an air gap.

DETAILED DESCRIPTION OF THE FIGURES

By convention, the "axial" direction corresponds to that of the main axis A shown in the figures and the "radial" direction is orthogonal to the axial direction.

In the detailed description of the figures which follow, the terms “upper” and “lower” or else “up” and “down” will be used in a nonlimiting manner with reference to the axial direction.

Likewise, the terms "exterior or exterior" and "interior or interior" are used with reference to the radial direction, an exterior element being radially farther from the axis A than an interior element.

There is shown in Figures 1 to 4, an exemplary embodiment of a case 10 for applying a cosmetic product 12.

In the embodiment, the cosmetic product 12 is a lipstick stick intended to be applied by rubbing, alternatively a lip care balm. The case 10 comprises at least one cover 14 which is associated with a base 16 having a complementary shape. The case 10 has a main axis A which extends in the axial direction.

In a nonlimiting manner, the cover 14 and the base 16 of the case 10 have a cylindrical shape of circular section notably illustrated by FIGS. 1 and 2.

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 12 and a closed position in which the cover 14 is integral from the base 1 6.

The lower part of the cover 14 has inside at least one, here two annular beads 18 which, axially offset, are intended to cooperate with an external cylindrical surface of an upper part of the base 16.

Advantageously, the annular beads 18 maintain the cover 14 on the base 16 in the closed position and participate in obtaining an airtight closure in order to guarantee good preservation of the cosmetic product 12.

The base 16 has a shoulder 17 which extends radially at the connection of the upper part of the base 16 with a lower part of larger diameter. The cover 14 has a lower edge 19 which is capable of abutting against said shoulder 17 in the closed position. The case 10 includes a mechanism 20 for the distribution of the cosmetic product 12. The mechanism 20 is constituted by a standard type mechanism, for example with an external diameter D having a value of 12.7 mm.

The mechanism 20 is intended to be able to be changed, in particular but not exclusively after the complete use of the cosmetic product 12.

Such a dispensing mechanism is well known in the art. The mechanism 20 described below is however given only by way of nonlimiting example.

In the embodiment, the mechanism 20 includes an internal guide 22, the rotation of which with respect to an external sheath 24 causes an axial movement of a cup 26 carrying the cosmetic product 12.

In the mechanism 20, the cup 26 comprises at least one lug 23, preferably two lugs 23 diametrically opposite.

The lugs 23 cooperate respectively with slides 25 of the internal guide 22, said slides 25 extending axially in a rectilinear manner. Each slide 25 advantageously comprises, at each of its upper and lower ends, a notch forming an end-of-travel stop for the lugs 23 of the cup 26.

The outer sheath 24 surrounds the inner guide 22. The sheath 24 has internally two helical grooves 27 with which the free end of the lugs 23 cooperate respectively, each lug 23 radially passing through the slide 25 associated with the guide 22 in order to engage in a groove 27.

The outer sheath 24 of the mechanism 20 again here comprises a jacket 28 which, force-fitted or glued to the outside of the sheath 24, is rotationally integral with said sheath 24.

The internal guide 22 includes 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 actuation of the mechanism 20, the rotation of the guide 22 by means of the wheel causing, depending on the direction of rotation, an axial movement of raising or lowering of the cup 26 and this making 12 cosmetic product.

Preferably, the thumbwheel 30 is made integrally, in one piece, with the internal guide 22 of the mechanism 20. As a variant, the thumbwheel 30 is a separate piece attached to the attachment to the internal guide 22.

In such a case 10, the wheel 30 of the mechanism 20 is actuated, after having previously removed the cover 14, by means of the base 16.

Consequently, the wheel 30 and the base 16 must on the one hand be axially connected together and, on the other hand, be linked in rotation to ensure the transmission to the wheel 30 of the mechanism 20 of any rotational movement applied to the base 16.

In a case 10, the mechanism 20 of which is interchangeable, the connection between the knob 30 and the base 16 must also be removable to allow such a change of the mechanism 20.

As explained in the preamble, the case 10 includes for this purpose a magnetic system 32 for reversibly connecting the base 16 to the wheel 30 of the mechanism 20.

Such a magnetic system 32 allows the mechanism 20 to be freely changed, it suffices for this to exert axially, in the opposite direction, a force greater than the magnetic attraction force in order to cause the separation of the mechanism 20 and the base 16 from case 10.

In the exemplary embodiment, the magnetic system 32 comprises an intermediate part 34 intended to ensure the connection between the base 16 of the case 10 and the knob 30 of the mechanism 20.

More specifically, the intermediate part 34 of the magnetic system 32 provides, on the one hand, an axial connection of the base 16 with the wheel 30 and, on the other hand, a connection in rotation without play between the base 16 and the wheel 30.

The intermediate piece 34 is essential for reliably ensuring the rotational connection function, the transmission of the torque between the base 16 and the knob 30 for actuating the mechanism 20.

As illustrated in FIG. 4, the intermediate connecting part 34 is arranged axially below the wheel 30 of the mechanism 20. After its assembly, the intermediate part 34 is interposed axially between the wheel 30 and the base 16 of the case 10.

The magnetic system 32 comprises at least a first element 36 which is associated with the base 16 and a second complementary element 38 which is associated with the intermediate piece 34.

Preferably, the magnetic attraction force exerted axially between the first element 36 and the second element 38 is intended to ensure only the axial connection.

The intermediate piece 34 constitutes a support for the second element 38 of the magnetic system 32.

The intermediate connecting piece 34 has a space requirement which is less than or equal to the external diameter D of the wheel 30.

Advantageously, the intermediate connecting piece 34 may be associated with several mechanisms 20, that is to say mechanisms 20 having different external diameters, ie a diameter greater than or equal to the external diameter D corresponding to the radial size. maximum of the intermediate piece 34.

Preferably, the first element 36 of the magnetic system 32 is magnetic, advantageously formed by at least one permanent magnet.

Advantageously, the permanent magnet 36 forming the first element of the magnetic system 32 has a disc shape.

The base 16 has a cavity 40 in a lower part of which is provided a housing 42 for mounting said at least one magnet 36.

In the exemplary embodiment, the magnet 36 is resiliently fitted into the housing 42 which is open axially upwards and closed on the opposite side by a bottom 44 of the base 16.

Advantageously, the base 16 includes locking means for axially retaining said magnet 36 in position.

The housing 42 comprises notches 45 formed radially in the base 16 into which, after its assembly, penetrate a peripheral part of the magnet 36.

The notches 45 are distributed circumferentially in a regular manner. The notches 45 are configured to have a dimension axially corresponding substantially to the thickness of the magnet 36 so as to axially lock said magnet 36 in position in the housing 42.

As a variant, the means for locking the magnet 36 in the housing 42 of the base 16 are constituted by lugs.

In the embodiment, the second element 38 of the magnetic system 32, complementary to the first element formed by said at least one magnet 36, is an element made of ferromagnetic material.

Preferably, the second element 38 is formed by a plate made of ferromagnetic material.

The plate 38 made of ferromagnetic material has a disc shape, similar to that of the magnet 36, although here with an outer diameter slightly smaller than this.

Preferably, the plate 38 made of ferromagnetic material is made of steel, as a variant of any other alloy or suitable material having ferromagnetic properties.

Alternatively, the intermediate part 34 is made of a ferromagnetic material or is a plastic part loaded with a ferromagnetic material. The second element 38 of the magnetic system 32 is then formed by the part 34 itself.

The intermediate part 34 comprises a housing 46 formed inside the part and in which is mounted said plate 38 forming the second element of the system 32.

Preferably, the plate 38 is fitted resiliently into the housing 46. The intermediate piece 34 includes locking means 48 for axially holding the plate 38 in the housing 46.

Alternatively, the second element 38 is magnetic, consisting of at least one permanent magnet. The second element 38 is then for example associated with a first element 36 formed by an element made of ferromagnetic material or by another permanent magnet, as has just been described for the embodiment with the magnet 36 illustrated in the figures.

In a variant not shown, the magnetic system 32 then comprises two magnets respectively carried one by the base 16 and the other by the part 34, the poles of which are arranged so as to exert a force of magnetic attraction oriented axially to bind together. the base 16 and the wheel 30 of the mechanism 20.

However, when the magnetic system 32 includes a first magnetic element 36 formed by a magnet, said magnet 36 is then preferably associated with a second element 38 made of ferromagnetic material (and not with another magnet) for reasons of cost.

As will be understood, the first element 36 and the second element 38 of the magnetic system 32 are chosen so that a magnetic attraction force is exerted axially between them.

Advantageously, the value of the force of attraction is determined to guarantee the reliability of the axial connection between the base 16 and the intermediate piece 34 secured to the mechanism 20 while not requiring an excessive effort to be overcome when the we want to change the mechanism 20.

When the magnetic system 32 thus comprises a magnetic element associated with an element made of ferromagnetic material, as in the embodiment, the magnetic element is then advantageously carried by the base 16 and the element made of ferromagnetic material carried by the part 34 intermediate.

Advantageously, during a change of mechanism 20, the first magnetic element 36 is kept with the base 16 of the case 10. The magnet 36 can therefore be permanently fixed in the base 16, for example resiliently fitted such that previously described or pasted.

In the exemplary embodiment, the intermediate piece 34 having a pawn shape has a base 50. The base 50 forms a portion of radial orientation which determines the radial size of the intermediate piece 34.

Advantageously, the base 50 is included inside a circle whose diameter corresponds to the external diameter D of the wheel 30 of the dispensing mechanism 20 more particularly illustrated in FIG. 3.

The housing 46 for mounting the plate 38 made of ferromagnetic material is produced inside the base 50 of the intermediate part 34 connecting the base 16 with the knob 30 of the mechanism 20.

The means 48 for blocking the plate 38 in the housing 46 are for example constituted by lugs which, extending radially inward of the housing 46, axially immobilize the plate 38 in the housing 46, here axially open downwards .

Preferably, the locking tabs 48 are configured to facilitate the elastic fitting of the plate 38 into the housing 46, the tabs 48 being for example provided with a frustoconical surface.

As illustrated in particular in FIGS. 6 and 7, the base 50 has a stepped outer edge 52. The edge 52 has an external surface 54 having, in axial section, a frustoconical section connecting two rectilinear sections respectively upper and lower. The base 50 is mounted axially in the cavity 40 of the base 16, above the housing 42 of the magnet 36, said cavity 40 comprising an imprint 56 of shape complementary to that of the edge 52 of the base 50 of the part 34 intermediate.

The rotational connection of the intermediate piece 34 with the base 16 is advantageously obtained by cooperation of shapes. The base 50 of the intermediate piece 34 has a periphery of non-circular shape. In the exemplary embodiment, the outer edge 52 of the base 50 has a periphery of polygonal shape. The cavity 56 of the cavity 40 of the base 16 is configured to cooperate with said edge 52 and to link the base 16 and the intermediate piece 34 in rotation.

As illustrated in the figures, the cavity 40 has an imprint 56 having a complementary shape, that is to say advantageously polygonal.

As a variant, the connection in rotation by cooperation of shapes between the base 16 and the intermediate piece 34 is obtained by means of grooves of axial orientation, complementary and formed on each of the pieces.

The magnetic system 32 has an axial gap E between the first element, here the magnet 36, and the second element, here formed by the plate 38 made of ferromagnetic material.

Advantageously, the value of the air gap E is determined by the design of the intermediate piece 34, in the example the configuration of the base 50 and in a complementary manner that of the cavity 40 of the base 16 receiving said base 50.

As illustrated in section in FIG. 8, the air gap E is in particular determined by the positioning of the edge 52 of the base 50 in the cavity 56 of the cavity 40, also by the tabs 48 for blocking the plate 38 which axially determines its position relative to the lower end of said edge 52. The air gap E corresponds to the distance axially separating the upper face of the magnet 36 mounted in the housing 42 from the base 16 and the lower face of the plate 38 mounted in the housing 46 of the base 50 of the intermediate piece 34.

Advantageously, the presence of an air gap E makes it possible to avoid any direct contact with the magnet 36. The magnet 36 is thus protected from shocks, such as those which may in particular occur during the magnetic connection of the intermediate piece 34 with the base 16 or during their separation.

In the embodiment, the air gap E is formed by a vacuum, by the space provided axially between the plate 38 and the magnet 36 of the magnetic system 32.

As a variant, the air gap E is formed by a lower part of the intermediate piece 34, for example by a bottom axially closing the housing 46 for mounting the plate 38. The air gap E is then determined by the thickness of the material of said lower part of part 34.

The intermediate connecting piece 34 comprises fixing means 58 for axially connecting said piece 34 with the knob 30 of the mechanism 20.

Preferably, the axial connection between the intermediate piece 34 and the wheel 30 is obtained by an elastic interlocking.

In the embodiment, the fastening means 58 are not designed to allow disassembly once the connection between the part 34 with the knob 30 of the mechanism 20 has been made.

As a variant, the fixing means 58 are capable of allowing such disassembly so that the intermediate piece 34 can be used with several mechanisms 20.

An axial connection between the intermediate piece 34 and the wheel 30 of the mechanism 20 allowing disassembly is capable of being obtained in different ways, for example magnetically like the reversible connection with the base 16.

Such a removable connection is for example made with means mounted movable between a fixing position and a release position, for example against an elastic member.

As illustrated in particular in FIG. 6, the fixing means 58 comprise at least two tabs, preferably three, which extend axially upwards from the base 50 of the intermediate piece 34.

The three tabs 58 of the part 34 are distributed angularly in a regular manner, ie at 120 °. The legs 58 are inserted into a complementary orifice 60 which is provided centrally in the knob 30 of the mechanism 20. The free end of each leg 58 is configured to form a hook 62 which cooperates with an upper edge 64 of the orifice 60 wheel 30 in order to axially lock the intermediate piece 34.

The hooks 62 of the fixing lugs 58 engaged with the edge 62 make it possible to axially retain the intermediate piece 34 carrying the plate 38 of the magnetic system 32, thus opposing the force of attraction of the magnet 36 or even a separation force applied axially in order to be able to change the mechanism 20.

To change the mechanism 20, a force greater than the magnetic attraction force exerted by the magnet 36 on the plate 38 must be applied to separate the base 16 carrying the magnet 36 from the part 34 which, carrying the plate 38, is integral with the wheel 30 of the mechanism 20.

The fixing lugs 58 make it possible to axially link the intermediate piece 34 to the knob 30 of the mechanism 20.

To ensure the rotary drive of the wheel 30 when the base 16 is rotated manually, the intermediate piece 34 must also be linked in rotation with the wheel 30.

As described above, the rotational connection of the intermediate piece 34 with the base 16 is advantageously obtained by cooperation of shapes, here polygonal, between the edge 52 of the base 50 and the imprint 56 of the cavity 40 of the base 16.

Advantageously, the connection in rotation of the intermediate piece 34 with the knob 30 of the mechanism 20 is also produced by cooperation of shapes.

The part 34 comprises meshing means 66 which, distinct from the fixing means 58, cooperate with means 68 complementary to the wheel 30 for rotationally linking said part 34 and the wheel 30 of the mechanism 20.

The means 66 for meshing the intermediate piece 34 include a toothing intended to cooperate with a toothing of the thumbwheel 30 forming said complementary means 68.

Preferably, the teeth 66 of the part 34 have toothed sectors which are arranged axially at the base of the legs 58, at their junction with the upper face of the base 50.

As illustrated in the figures, the toothing 66 of the part 34 comprises for example three toothed sectors which, each arranged between two legs 58 consecutive, are distributed circumferentially in a regular manner.

The toothing 68 of the knob 30 of the mechanism 20 is formed inside the orifice 60.

Preferably, the toothing 68 is arranged axially opposite the edge 64, at the inlet of the orifice 60, to cooperate with the toothing 66 carried by the intermediate piece 34. Teeth 68 extends circumferentially continuously.

The cooperation of the teeth 66 of the part 34 with the teeth 68 complementary to the wheel 30 ensures the connection in rotation without play by meshing the part 34 intermediate with the wheel 30.

This ensures the transmission of the rotational movement applied to the base 16 since said part 34 is also linked in rotation to said base 16.

Advantageously, the teeth 66 and 68 are rotational connection means which do not require providing a particular angular indexing between the intermediate part 34 and the wheel 30.

In a variant not shown, the connection in rotation of the intermediate piece 34 with the wheel 30 of the mechanism 20 is produced by friction between the tabs 58 and the wheel 30.

In such a variant, the teeth 66 and 68 are advantageously eliminated and the tabs 58 then perform a double function, respectively of axial connection and of rotation connection.

In the example which has just been described, the part 34 is preferably previously fixed to the knob 30 of the mechanism 20 to constitute a unitary assembly ready to be used, mounted directly in a case 10.

In the description which has just been made, the change of the mechanism 20 should not be interpreted restrictively but as also signifying the change of such a unitary assembly comprising, in addition to the mechanism 20, said intermediate piece 34.

According to an example of use, the unitary assembly comprising the mechanism 20 and the part 34 forms a cartridge or refill intended to replace another assembly mounted in the case 10 and this after complete use of the cosmetic product 12 distributed by the mechanism 20.

As indicated above, the intermediate piece 34 according to the embodiment illustrated by the figures is not removable here once its assembly has been carried out by the axial introduction of the lugs 58 for fixing the piece 34 inside. the orifice 60 of the wheel 30.

According to another example of use, the case 10 is used with several assemblies (or mechanisms 20) independently of the complete use of the cosmetic product 12.

Indeed, the magnetic system 32 allows to freely change the assembly contained in the case 10, for example a change may be desired to change the shade in the case of a cosmetic product 12 formed by a lipstick .

Such a case 10 is therefore advantageously likely to be marketed with several assemblies or mechanisms 20 each containing a different cosmetic product 12, intended to be mounted interchangeably in the case 10. The invention is capable of industrial application, in particular in the field of cosmetic products, for example in a case 10 for applying a cosmetic product 12 comprising at least one cover 14 associated with a base 16 and a mechanism 20 for the distribution of said product 12, in which the base 16 is reversibly linked to a knob 30 of the mechanism 20 via a magnetic system 32 to allow a change of the mechanism, said magnetic system 32 comprising at least a first magnetic element 36 associated with the base 16 and a second element 38 complementary associated with an intermediate connecting piece 34 between the base 16 and the wheel 30.

Preferably, the mechanism 20 for the distribution of the cosmetic product 12 is of the type comprising an internal guide 22 comprising said wheel 30 whose rotation relative to an external sheath 24 causes an axial movement of a cup 26 carrying the product 12 cosmetic.

Claims (10)

1. Assembly intended to be mounted in a case (10) for applying a cosmetic product (12) comprising at least one base (16) which comprises a first element (36) of a magnetic system (32), said assembly comprising at least one mechanism (20) for dispensing said cosmetic product (12) provided with an actuating wheel (30) and an intermediate piece (34) which comprises a second element (38) of said magnetic system (32) intended to reversibly link said knurl (30) to the base (16) to allow a change of said mechanism (20), characterized in that the intermediate piece (34) is configured to present radially a dimension which is less than or equal to the outer diameter (D) of the wheel (30) below which said intermediate piece (34) is arranged axially. 2. Assembly according to claim 1, characterized in that said intermediate piece (34) comprises at least one housing (46) in which is mounted said second element (38) of the magnetic system (32). 3. An assembly according to claim 2, characterized in that said intermediate piece (34) comprises locking means (48), such as lugs, for axially holding said second element (38) in the housing (46). 4. Assembly according to any one of the preceding claims, characterized in that the intermediate piece (34) comprises fixing means (58) for axially connecting said intermediate piece (34) with the knob (30) of the mechanism (20) . 5. Assembly according to claim 4, characterized in that the fixing means (58) comprise at least two tabs, preferably three, which are intended to be introduced axially into an orifice (60) of the wheel (30). 6. Assembly according to any one of the preceding claims, characterized in that the intermediate piece (34) is configured to axially form an air gap (E) between the first element (36) and the second element (38) of the system (32 ) magnetic. 7. Assembly according to any one of the preceding claims, characterized in that the intermediate piece (34) comprises engagement means (66) intended to cooperate with means (68) complementary to the thumbwheel (30) for binding in rotation of said intermediate piece (34) and the wheel (30) of the mechanism (20). 8. Assembly according to claim 4 taken in combination with claim 7, characterized in that the means (66) of engagement are distinct from the means (58) for fixing the part (34) intermediate. 9. An assembly according to claim 8, characterized in that the means (66) for meshing the part (34) intermediate have a toothing, for example formed by three toothed sectors. 10. Case (10) for applying a cosmetic product (12) comprising at least one cover (14), a base (16) and an assembly according to any one of the preceding claims, characterized in that said assembly ( 20, 34) is linked to the base (16) by a magnetic attraction force exerted between the first element (36) associated with the base (16) and the second complementary element (38) associated with the part (34 ) intermediate.