FR3023690A1 - SPRINKLER FOR A COSMETIC PRODUCT CONTAINER, CONTAINER COMPRISING SUCH A SPINNER AND AN APPLICATOR ASSEMBLY COMPRISING SUCH A CONTAINER - Google Patents

Abstract

The invention relates to a wiper (10) for a container (20) for a cosmetic product, said container (20) comprising a body (22) forming a cavity (24) for receiving the cosmetic product, the wiper (10) comprising: - a first part, said fixing portion (12), adapted to be fixed to said body (22), and - a second flexible portion (14), configured to extend inside the cavity (24), from a shoulder (25) of said body (22), said flexible portion (14) being further configured to prevent the cosmetic product from contacting the shoulder (25), said flexible portion (14) ) being made of material with said fixing portion (12) or attached to said fixing portion (12). The invention also relates to a container (20) comprising such a wiper (10) and an applicator assembly comprising such a container (20).

Description

The invention relates to a wiper for a cosmetic product container, a container comprising such a wiper and an applicator assembly comprising such a container. Cosmetic product applicator assemblies are known, in particular for a cosmetic product intended to be applied to the eyelashes, such as mascara, comprising a container containing the cosmetic product and an applicator sub-assembly adapted to be fixed in a removable manner to the container. The container generally comprises a body, the body comprising walls defining a cavity in which the cosmetic product is contained, and a neck defining an opening through which the cosmetic product can be extracted, the neck having a neck. The applicator subassembly generally includes a plug adapted to be attached to the neck, a stem extending from the plug and an applicator attached to a free end of the rod. The applicator comprises a core and a plurality of protuberances or bristles extending from the core. When the cap is fixed on the neck, the rod and the applicator extend inside the container. The applicator is immersed in the cosmetic product contained in the container. To use the applicator, the user detaches the neck cap and extracts the applicator from the container.

To prevent the applicator from being overloaded with cosmetic product, the container generally comprises a wiper, fixed inside the neck. When the user extracts the applicator from the container, the applicator and the rod slide inside the wiper. The wiper scrapes the cosmetic product in excess on the stem and the applicator. The wiper thus makes it possible to regulate the quantity of product present on the applicator and avoids an excessive application of cosmetic product on the eyelashes. The known applicator assemblies have the disadvantage of restoring only a portion of the cosmetic product they contain. Indeed, when the user extracts the applicator subassembly of the container, a portion of the cosmetic product present on the rod and the applicator sticks under the neck of the container, inside said container. It has been found that the cosmetic product accumulates at this point, becoming inaccessible to the user. He is thus lost. An object of the invention is to increase the cosmetic product restitution capacity of the applicator assemblies.

Thus, the invention relates to a wiper for a cosmetic product container, said container comprising a body forming a cavity for receiving the cosmetic product. According to the invention, the wiper comprises: a first part, said fixing part, capable of being fixed to said body, and a second flexible part, configured to extend inside the cavity, from a shoulder of said body, said flexible portion being further configured to prevent the cosmetic product from contacting the shoulder, said flexible portion being integral with said attachment portion or attached to said attachment portion . The wiper of the invention has the advantage of avoiding any stagnation of cosmetic product under the shoulder of said body. This makes it possible to increase the cosmetic product restitution capacity of the applicator assemblies comprising a container equipped with such a wiper. In addition, the flexible part of the wiper is made of material with the attachment part, or attached to the latter. This has the advantage of facilitating the assembly of the wiper on the body of the container.

According to various embodiments of the invention, which may be taken together or separately: the fixing portion is rigid; in other words, not deformable by a constraint exerted by the fingers of a user, said flexible portion is a bellows made of material with said fastening portion, the bellows has a free end, opposite to said fixing portion, said free end is present in the form of an outgrowth of material extending transversely to a main axis of said wiper, said outgrowth has a wiper orifice of the product, said outgrowth extends radially from the free end, said outgrowth is a configured washer to be mobile with respect to said body, the wiper of the invention comprises a wiper orifice at the boundary between said attachment portion and said flexible portion, the flexible portion comprises at least one slot, said slot extending substantially following a main axis of said wiper, over all or part of the flexible part, - the flexible part comprises a plurality of forman slots t petals on all or part of the flexible part, said petals being derived from material with the fixing part, - the flexible part comprises a plurality of slots forming petals on all or part of the flexible part, said petals being attached to said fixing part, - said petals are overmolded on said fixing part, - said petals are clipped on said fixing part, - said petals are glued to said fixing part, - the free ends of said petals extend radially, in particular so as to be able to graze said body, said outgrowth material of the bellows, and / or a free end of said petals, has a radial extension greater than a radial extension of said fixing portion, - the wiper is a plastic part.

The invention also relates to a container comprising a wiper as described above. According to various embodiments of the invention, which may be taken together or separately: the body of said container extends in a main direction of longitudinal extension, said main axis, a main axis of the wiper is intended for correspond to said main axis of the body, - said body has a neck, a side wall and a bottom, - said bottom is opposed to said neck along said main axis of the body and / or the wiper, - said side wall extends between the neck and the bottom, - said neck comprises a neck and the shoulder from which the flexible part of the wiper extends inside the cavity of the container, - said shoulder defines a border between the neck and said side wall, - the fixing part is able to be fixed inside the neck, - the flexible part extends inside the cavity, towards the bottom along the main axis, - the ratio between the height H of said recipi ent, measured along the principal axis between the bottom and the free end of the neck, and the height h of the wiper measured along the principal axis, shall conform to the following formula: 0,25 <h / H <0.45, - the washer of said wiper has a shape complementary to an internal section of the cavity, - the dimensions of the periphery of the washer are at most equal to the dimensions of the internal section of the cavity so as to graze said internal wall, - the petals of said wiper graze said body, in particular by their free end. The invention also relates to an applicator assembly for a cosmetic product, comprising: - a container as described above, - an applicator sub-assembly adapted to be fixed on said container, so that at least a part of said subset applicator is housed inside said container.

According to various embodiments of the invention, which can be taken together or separately: - said container is filled with viscous cosmetic product, - said product is mascara, - the applicator subassembly comprises a cap adapted to be fixed on the neck, a stem extending from the plug and an applicator attached to a free end of the stem, - the applicator comprises a core and a plurality of protuberances or bristles extending from the core, - the rod of the applicator is partially curved so as to come into contact with the mascara located near the bottom of the container, - the applicator core is partly curved so as to come into contact with the mascara situated in the vicinity the bottom of the container and / or in the vicinity of the free end or ends of the flexible portion of said wiper.

The invention will be better understood, and other objects, details, features and advantages thereof will become more clearly apparent in the following detailed explanatory description of at least one embodiment of the invention given to As a purely illustrative and nonlimiting example, with reference to the appended diagrammatic drawings: FIG. 1 is a diagrammatic representation in longitudinal section of a first exemplary embodiment of a wiper for a cosmetic product container according to the invention; flexible of the wiper being at rest, - Figure 2 is the same representation as in Figure 1, the flexible part of the wiper being under stress, - Figure 3 is a longitudinal sectional view of a second example embodiment of the wiper according to the invention, - Figure 4 is a bottom view of the example illustrated in Figure 3, - Figure 5 is a schematic representation in longitudinal section of the wiper of the FIG. 6 is a diagrammatic representation in longitudinal section of the wiper of FIG. 3, said wiper being assembled on said container, FIG. 7 is an illustration in FIG. elevation of a portion of a first embodiment of an applicator assembly for a cosmetic product according to the invention, with an applicator subassembly comprising an applicator having a curved core, the applicator being illustrated in transparency inside of the body of a cosmetic product container according to the invention, FIG. 8 is an illustration similar to FIG. 7, the applicator being illustrated in the vicinity of a shoulder of said container, the wiper having been partially shown to facilitate the FIG. 9 is an illustration in elevation of a second exemplary embodiment of an applicator assembly according to the invention with a co-applicator subassembly. With an applicator having a curved rod, FIG. 10 is a schematic representation of a ratio between the heights of the various elements constituting an embodiment of a container according to the invention. As illustrated in FIGS. 1 to 6 and 10, the invention relates to a wiper 10 for a container 20 for a cosmetic product. Figures 1 and 2 illustrate a first embodiment of the wiper 10, while Figures 3 to 6 illustrate a second. The wipers 10 illustrated in the context of these two exemplary embodiments are able to be fixed, by an attachment portion 12, to a body 22 of said container 20. This body forms a cavity 24 inside which extends a second part of the wiper 10, said flexible portion 14 thereafter. The cavity 24 is intended to contain cosmetic product, substantially viscous, especially mascara. According to the invention, the flexible portion 14 of the wiper 10 is configured to prevent the cosmetic product from coming into contact with a shoulder 25 of said body 22.

In the context of the example illustrated in Figures 1 and 2, said flexible portion 14 is made of material with said fixing portion 12. More specifically, said flexible portion 14 is a bellows 15 which has a free end, opposite to said portion 12. This free end has a wiper orifice 16 and may advantageously be in the form of a protrusion of material extending transversely to a main axis of said wiper 10. Said main axis of the wiper will be spotted Y thereafter; it is preferably merged with a main direction of longitudinal extension of said wiper 10. The protrusion of material will be advantageously in the form of a washer 17 movable relative to said body 22, in particular along said main axis Y. The figures 1 and 2 represent this mobility by illustrating the bellows 15, at rest in FIG. 1, and under stress in FIG. 2. By "under stress" is meant under the action of an external force acting along the main axis Y, from said free end to the fixed portion 12 of the wiper 10. When under stress, the bellows 15 is compressed so that said washer 17 is brought closer to the shoulder 25 while preventing the cosmetic product contained in the cavity 24 to come into contact with it. This situation corresponds, in particular, to the removal of an applicator from the container 20 with the spinning of said applicator at said wiping orifice 16. A second example of embodiment is here illustrated, in particular with reference to FIGS. 6. In the context of this second embodiment, the flexible portion 14 is made in the form of petals 13 separated by a plurality of slots 18 on all or part of the flexible portion 14. The flexible portion 14 may be here, or issue of material with said fixing portion 12, is attached to said fixing portion 12. Thus, these petals may advantageously be clipped on said fixing portion 12, glued on said fixing portion 12, or overmolded with.

This configuration in petals 13 which extend between two slots 18 has the advantage of facilitating the assembly of said wiper 10 on the cosmetic product container 20. Indeed, as shown in Figure 5, the petals 13 can easily be moved together from each other, in particular around the main axis Y of the wiper 10, to form a set of small radial dimensions. This assembly of small size is able to slide inside the body 22 of said container 20 without difficulty. It should be noted that the petals 13 may, for this purpose, overlap each other. Once inside the cavity 24, as shown in Figure 6, the petals 13 unfold. The free ends of said petals 13 then extend radially towards said body 22, in particular so as to graze said body 22, or even so as to touch said body 22. This is allowed because said petals 13 have an intrinsic elasticity which allows them to bend under a low radial stress, exerted for example transversely to the main axis Y, and which allows them to deploy without the aid of any external force, especially when no stress is exerted on it. Once deployed inside the cavity 24 of said body 22, the petals 13 are oriented along the main axis Y, in an opposite direction of the shoulder 25. Thus, said petals 13 prevent the cosmetic product from contact with said shoulder 25. In other words, the petals 13 once deployed inside the cavity 24, form a dome. More specifically, the petals 13 are oriented in a direction forming an angle between 0 ° and 90 ° relative to the axis X, Y. In addition, each petal 13 has a curved shape, the concave portion of the petal 13 being oriented towards the cavity 24 (the convex portion being oriented towards the shoulder 25). This dome shape improves the rate of restitution since it delimits a portion of the inner wall of the cavity 24, inclined portion relative to the axis X, Y. This inclination facilitates the recovery of the mascara by the applicator. The wringing orifice, in the context of this embodiment, is marked 19. It is located at the boundary between said attachment portion 12 and said flexible portion 14. It should be noted that the wiper 10 is a part plastic, this regardless of the intended embodiment. The wiper 10 will advantageously be obtained by molding, for example a material based on LDPE (low density polyethylene).

Other materials may still be used, namely the "EXACT" material of ExxonMobil or the "HYTREL" material of Dupont, or a mixture of these materials. It should also be noted that the fixing portion 12 is rigid, regardless of the intended embodiment. By "rigid" is meant a portion that has sufficient rigidity to maintain the wiper 10 in the body 22 of the container 20 and to seal between said container 20 and the outside. Advantageously, said rigid portion 12 will not be split. It is here of cylindrical configuration.

On the other hand, the attachment portion 12 is assembled with the body 22 of the container 20, at a neck 23. This neck 23 is illustrated in Figures 1, 2, 5, 6 and 8. It is also visible , in Figures 1, 2, 5 to 8 and 10, that the body 22 of said container 20 extends in a main direction of longitudinal extension, said main axis, and marked X. The main axis Y of the wiper 10 is intended to correspond to said main axis X after assembly thereof at the neck 23. More specifically, said neck 23 comprises a neck 27 and the shoulder 25 from which the flexible portion 14 of the wiper 10 s' extends within the cavity 24 of the container 20. The attachment portion 12 is, in fact, fixed inside the neck 27. This attachment is advantageously carried out by cooperation of forms. More specifically, the fixing portion 12 has bumps of material serving as stops for holding said wiper 10 in position after being assembled inside the neck 27.

The body 22 has, in addition, a side wall 26 (see Figures 2 and 6) and a bottom 28 (see Figure 7). The cavity 24 is defined inside the space delimited by the shoulder 25, the side wall 26 and the bottom 28. Said bottom 28 is opposite said neck 27 along said main axis X, Y and said side wall 26 extends between the neck 27 and the bottom 28. As can be seen, in particular in FIGS. 2 and 6, said shoulder 25 defines a boundary between the neck 27 and said side wall 26. Thus, the flexible portion 14 described herein above extends inside the cavity 24, towards the bottom 28 along the main axis X, Y.

A dimension ratio makes it possible to restore a maximum of product out of the container 20. This dimension ratio is given by way of nonlimiting example, and in particular in the context of the first embodiment illustrated in FIGS. 1 and 2, in which the flexible portion 14 is a bellows 15. This does not exclude the second embodiment of the scope of the invention, nor any other embodiment not shown here. This ratio of dimensions is a ratio between the height H of the container 20, measured along the main axis X, Y between the bottom 28 and the free end of the neck 27, and the height h of the wiper 10, when the bellows 15 is at rest, also measured along the main axis X, Y. This ratio is illustrated in Figure 10; it complies with the following formula: 0.25 <h / H <0.45.

For example, the height H of the container 20 will be of the order of 100 mm, preferably substantially equal to 105 mm, and the height h will be of the order of 40 mm, preferably substantially equal to 39 mm. In order to return the maximum product out of the container 20, it is also advantageous to provide the washer 17 with a shape complementary to an internal section of the cavity 24. Said section may be constant along said main axis X, Y; for example circular, without this being limiting. It may also vary along said main axis X, Y, so that said washer has a beveled edge, this without departing from the scope of the invention.

The dimensions of the periphery of the washer 17 will, advantageously, at most equal to the dimensions of the internal section of the cavity 27 so as to brush against said inner wall 26 and thus ensure that the cosmetic product does not come into contact with the shoulder 25, or even to ensure a scraping of said product to the bottom 28 of said container 10 through the return of said bellows 15 to its rest position.

Indeed, the bellows 15 has an intrinsic elasticity that allows it to be compressed under a low axial stress, exerted for example along the main axis X, Y towards the free end of the neck 23, and resume its initial resting position without the help of any external force. Thus, said wiper 10, thanks to its bellows 15, is able to push the cosmetic product possibly glued to the side wall 26 towards the bottom 28 of said body 22. On the other hand, a volume of a height h2 will be left free, between the mascara 40 contained in the cavity 24 and said washer 17 (see Figure 10), after filling.

For example, the mascara 40 may occupy a volume of a height h3 of the order of 60mm, while the height h2 of said free volume will be of the order of 6mm.

An applicator subassembly is intended to be attached to the container 20 of the invention. Said applicator subassembly will be adapted to be fixed on said container 20 so that at least a portion of said applicator subassembly is housed inside said container 20. An example of such an applicator subassembly is illustrated in FIG. FIG. 9. In this FIG. 9, the applicator subassembly comprises a plug 34 adapted to be fixed on the neck 27, a rod 33 extending from the plug 34 and an applicator 32 attached to a free end of the rod. . The applicator 32 includes a core and a plurality of protuberances or bristles extending from the core. As will be understood, it is the mascara loaded at said applicator which is wrung by said wiper to the passage of said subset through said wiper.

It should be noted that the exemplary embodiments presented above make it possible to restore an even greater quantity of cosmetic product when the subassembly comprises an applicator 32 having a rod 33 that is partly curved (see FIG. 9) or a core in part. curved (see Figure 7 and 8). Indeed, in these two cases, the applicator 32 easily comes into contact with the cosmetic product located in the vicinity of the bottom 28 of the container 20, in particular with the cosmetic product located in the vicinity of the connection between said bottom 28 and the side wall 26. It should also be noted that alternative embodiments are of course possible.

In particular, the curved core illustrated in FIGS. 7 and 8 may be used with any type of wiper 10, even those having no flexible portion 14. Indeed, the bend that it forms is able to scrape the eventual cosmetic product located under the shoulder 25. However, it is preferable to combine the use of said curved core applicator 32 with a wiper 10 of the invention, especially with the wiper of the first embodiment. The restitution rate of the cosmetic product is optimal - for example close to 67% - when the wiper 10 of the first embodiment is used in combination with the applicator 32 with a curved core. In other words, 67% of the mascara 40 contained inside the cavity 24 of the container 20 can be taken out of said container 20 when the latter comprises a wiper 10 of the invention, on the one hand, and on the other hand, when it is used in combination with an applicator 32 with a curved core, or even an applicator 32 with a curved rod 33.

In addition, the wiper 10 of the first embodiment has the advantage of reducing the amount of parasitic air in the cavity 24 of the container 20, and therefore a possible pumping effect that may exist when handling the subassembly. applicator with respect to the container 20, in particular during the extraction of said applicator 32 from the container 20 or during its reinsertion in the container 20.

Claims (15)

REVENDICATIONS1. A wiper (10) for a cosmetic container (20), said container (20) comprising a body (22) forming a cavity (24) for receiving the cosmetic product, the wiper (10) comprising: a first portion, so-called attachment portion (12), attachable to said body (22), and a second flexible portion (14) configured to extend within the cavity (24) from a shoulder ( 25) of said body (22), said flexible portion (14) being further configured to prevent the cosmetic product from contacting the shoulder (25), said flexible portion (14) being integral with said fixing part (12) or hooked to said fixing part (12). 2. Wringer (10) according to the preceding claim, wherein said flexible portion (14) is a bellows (15) made of material with said fixing portion (12). 3. Wringer (10) according to the preceding claim, wherein the bellows (15) has a free end opposite to said fixing portion (12), said free end being in the form of a protrusion of material extending transversely to a main axis (Y) of said wiper (10). 4. Wringer (10) according to the preceding claim, wherein said protrusion has a wiper orifice (16) of the product. 5. Wringer (10) according to any one of claims 3 or 4, wherein said protrusion extends radially from the free end. 6. Wringer (10) according to any one of claims 3 to 5, wherein said protrusion is a washer (17) configured to be movable relative to said body (22). The wiper (10) of claim 1 comprising a wiper (19) at the boundary between said attachment portion (12) and said flexible portion (14). 8. Wringer (10) according to the preceding claim, wherein the flexible portion (14) comprises at least one slot (18), said slot (18) extending substantially along a main axis (Y) of said wiper (10), on all or part of the flexible portion (14). 9. Wringer (10) according to the preceding claim, wherein the flexible portion (14) comprises a plurality of slots (18) forming petals (13) on all or part of the flexible portion (14), said petals (13). being derived from material with the attachment portion (12). A wiper (10) according to claim 8, wherein the flexible portion (14) comprises a plurality of petal-forming slots (18) on all or part of the flexible portion (14), said petals (13). being hooked to said attachment portion (12). 11. The wiper (10) according to any one of claims 9 or 10, wherein the free ends of said petals (13) extend radially so as to brush against said body (22). A container (20) comprising a wiper (10) according to any one of the preceding claims, the body (22) extending in a main direction of longitudinal extension, said main axis (X) of the body, said body presenting a neck (23), a side wall (26) and a bottom (28), said bottom (28) being opposite said neck (23) along said main axis (X) of the body, said side wall (26) is extending between the neck (23) and the bottom (28), said neck (23) comprising a neck (27) and the shoulder (25), said shoulder (25) defining a border between the neck (27) and said wall lateral (26). 13. applicator assembly for cosmetic product, comprising: - a container (20) according to the preceding claim, an applicator subassembly adapted to be fixed on said container (20), so that at least a portion of said applicator subassembly is housed inside said container (20). 14.The applicator assembly according to the preceding claim, wherein said container (20) is filled with viscous cosmetic product. 15. Applicator assembly according to the preceding claim, wherein said product is mascara (40) .10