This application is a National Phase filing under 35 U.S.C. § 371 of PCT/EP2017/070136 filed on 9 Aug. 2017; and this application claims priority to Application No. 16 57940 filed in France on 25 Aug. 2016. The entire contents of each application are hereby incorporated by reference.
The present invention relates to a cosmetic product applicator, of the type comprising: an application member extending along a first longitudinal axis, a first end of said application member comprising an application element; and a gripping member extending along a second longitudinal axis and hinged to a second end of the application member, with the gripping member being mobile in rotation with respect to the application member about a third axis of rotation, perpendicular to the first and second longitudinal axes, between a first and a second stable configurations.
The term “cosmetic product”, refers, according to this invention, to a product as defined in Regulation (EC) No 1223/2009 of the European Parliament and of the Council of Nov. 30, 2009, on cosmetic products.
The cosmetic product for which the applicator according to the invention is intended is in particular in the form of a powder, a compacted solid, or preferentially a fluid such as a liquid. The product is advantageously a product intended to be placed on the keratin fibers of a user, such as the eyelashes or the eyebrows. The product is for example a makeup product such as a mascara.
In order to benefit from improved ergonomics for applying makeup, it is known to provide applicators of the type cited above, wherein the application member can be oriented in a variable manner with respect to the gripping member. Such a hinged applicator is particularly described in the document EP1369056, held by the Applicant.
For the guiding of the application member, it is known to arrange in the gripping member a slot in which said application member can slide. A width of said slot is optionally variable, in order to create a hard spot to the crossing by said application member. Said gripping and application members are as such maintained with respect to one another in a finite number of predetermined positions.
This type of applicator is however difficult to produce. Indeed, the resistance of the hard spot must be sufficiently low to allow for easy handling for the user, and sufficiently high to prevent an untimely change in position of the application member during use. On the other hand, the slot that forms a hard spot is sensitive to wear and tear due to the substantial friction, which decreases the service life of the applicator. Moreover, this wear and tear can generate the appearance of gaps inside the applicator, which negatively affects the quality perceived by the user.
This invention has for purpose to provide an applicator that is easier to develop, of reliable and sustainable operation and less sensitive to wear and tear by displacement of the gripping and application members in relation to one another.
To this effect, the invention has for object an applicator of the aforementioned type, wherein the application member and the gripping member respectively comprise first and second guiding elements, with said first and second guiding elements being configured to slide against one another during a rotation of the gripping member with respect to the application member, with each one of the first and second stable configurations corresponding to a minimum of elastic stress between said first and second guiding elements, said elastic stress being considered in the radial direction with respect to the axis of rotation.
Thanks to these arrangements, the invention proposes an applicator that is simple to produce, of reliable and sustainable operation and with improved quality as perceived by the user.
In particular, the fact that, during the rotation of the gripping member with respect to the application member, the first and second guiding elements are maintained in sliding contact against one another under the effect of an elastic stress exerted in a radial direction with respect to the axis of rotation of these members makes it possible to offset any existing gaps within the applicator due to the manufacturing tolerances of the various components thereof or which appear within the applicator via wear/matting of the guiding elements over time.
Moreover, according to preferred embodiments of the invention, when the gripping member is angularly located outside of the stable configuration with respect to the application member, the gripping member is in unstable configurations and an elastic stress greater than the minimum reached in stable configurations is exerted between the first and second guiding elements.
In particular, the elastic stress that is exerted between the first and second guiding elements is preferably maximal when the gripping member is angularly located half-way between the first and second stable configurations with respect to the application member.
The term unstable configuration means here that if the gripping member is in an unstable configuration with respect to the application member and no exterior effort is applied to it, then it is elastically recalled to the nearest stable configuration by the elastic stress that exists between the first and second guiding elements.
Thanks to these arrangements, a “sporing effect” is provided within the applicator, of which crossing force or torque can be calibrated by adjusting the maximum elastic stress reached between the stable configurations of the gripping member with respect to the application member.
As such, it can be provided that, using one of the first and second stable configurations, the user has to exert only a slight “flick” on the gripping member, for example a torque of about 0.1 N·m, in order to overcome the elastic stress maximum and reach the other stable configuration of the gripping member with respect to the application member. The elastic stress between the first and second guiding elements opposes this displacement until the maximum elastic stress is reached, then assists this displacement once this maximum is reached and crossed.
According to further advantageous aspects of the invention, the applicator comprises one or several of the following features taken in isolation or in any technically possible combination:
The invention further relates to an assembly for packaging and applying a cosmetic product, comprising: a cosmetic product applicator as described above, and a container intended to contain said cosmetic product, the applicator and the container comprising a reversible assembly device in a storage configuration, wherein the application element of the applicator is received in an internal volume of the container.
The invention will be easier to understand in view of the following description, provided solely as a non-restricted example and with reference to the drawings, wherein:
Apart from differences detailed hereinafter, the assemblies 10 and 110 are substantially equivalent and will be described simultaneously. The elements common to the assemblies 10 and 110 are designated by the same reference numbers.
The assembly 10, 110 is particularly intended for packaging and applying mascara. The assembly 10, 110 particularly comprises a container 12 and an applicator 14, 114.
The container 12, visible in
The container 12 further comprises a neck 22, of tubular shape, wherein an external wall comprises a thread 24.
The container 12 also comprises a squeezing member 26, also of tubular shape, inserted into the neck 22 and extending into the internal volume 20.
The applicator 14, 114 comprises an application member 30 and a gripping member 32, 132, hinged with respect to one another. More specifically, the application 30, 130 and gripping 32, 132 members extend respectively along a first longitudinal axis 34 and along a second longitudinal axis 36; and said application 30 and gripping 32, 132 members are connected by a pivot connection along a third axis, designated hereinafter as axis of rotation 38, perpendicular to the first 34 and second 36 longitudinal axes.
The application member 30, visible in
The application head 42 is typically a mascara brush or comb. More particularly, the application head 42 comprises an elongated core, as well as a plurality of reliefs such as bristles or pins, projecting laterally from said core.
The closing cap 44 is preferably formed from one piece, or in other words integral, with the second end of the rod 40. Said closing cap has substantially the shape of a ring arranged along the first longitudinal axis 34. An internal surface of said ring comprises an internal thread 50. Said internal thread is suitable for engaging with the thread 24 of the neck 22 to assemble the container 12 and the applicator 14, 114 in a storage configuration, represented in
According to alternative embodiments not shown, further known devices for assembling the closing cap 44 and the neck 22 are used, such as a snap-locking or other assembly device.
An axial end of the closing cap 44, opposite the application head 42, consists of a ring-shaped surface. It is considered that the surface is formed from a first 52 and a second 54 half-rings, situated on either side of a plane comprising the first longitudinal axis 34 and the third axis, referred to as axis of rotation 38.
In the embodiments of
The hinge element 46 extends the closing cap 44. Said hinge element 46 and closing cap 44 are formed preferably from one piece, or in other words integral.
In the embodiments of
The hinge element 46 further includes two circular cavities 60, formed on either side of the rounded body 56. The two circular cavities 60 are suitable for forming a hinge with the gripping member 32, 132 to represent the axis of rotation 38, as described hereinafter.
The first guiding element 48 axially extends the hinge element 46 and is preferably formed from one piece with said hinge element 46.
The first guiding element 48 forms an axial protrusion from the distal plane 58. Said first guiding element 48 comprises a guide rail 62, forming a surface directed outwards with respect to the axis of rotation 38. Said first guiding element 48 further comprises two studs 64, substantially aligned according to a direction parallel to said axis of rotation 38. The studs 64 form a radial protrusion from the guide rail 62, with the term “radial” being understood with respect to the axis of rotation 38.
The gripping member 32, 132 has a substantially tubular shape extending along the second longitudinal axis 36. A distal end 68 of the gripping member 32, 232, furthest from the axis of rotation 38, is preferably closed. The other end, referred to as proximal, is open.
The gripping member 32, 132 comprises an internal side wall 70 and an external side wall 72, arranged about the second longitudinal axis 36. The internal side wall 70 defines a chamber 73 inside the gripping member.
The internal side wall 70 comprises two lugs 74 situated facing one another, in radial projection. The lugs 74 are inserted into the circular cavities 60 of the hinge element 46, said hinge element and the first guiding element 48 being received in the chamber 73. The lugs 74 and the circular cavities 60 thereby form a hinge, materializing the axis of rotation 38 of the gripping member 32, 132 with respect to the application member 30.
The gripping member 32, 132 further comprises a second guiding element 75, 175 that extends in the chamber 73. The second guiding element 75, 175 is able to cooperate with the first guiding element 48 of the application member 30. The second guiding element 75, 175 will be described in detail hereinafter.
In the embodiments of
The second edge 81 is formed by a beveled cut in the external side wall 72. More precisely, the second edge 81 is substantially parallel to the axis of rotation 38 and inclined by the angle α with respect to the first edge 80.
In the first stable angular configuration of the applicator 14, 114, as shown in
The first and second stable angular configurations described above therefore define the set of possible angular configurations of the gripping member 32, 132 with respect to the application member 30.
The first 48 and second 75, 175 guiding elements have for object to favor the passage of the applicator 14, 114 in one or the other of the first and second stable angular configurations, in opposition with any angular configuration that is unstable, located between said first and second stable configurations.
More precisely, the first 48 and second 75, 175 guiding elements are configured to exert one on the other an elastic radial stress between said first and second stable configurations. The term “radial” is understood with respect to the axis of rotation 38. Each one of the first and second stable configurations corresponds to a minimum of radial elastic stress between said first 48 and second 75, 175 guiding elements.
In the embodiments in
According to an alternative not shown, the internal 70 and external 72 side walls are formed from a single piece.
The internal sleeve 82, 182 comprises a side wall 84, partially forming the internal side wall 70 of the gripping member 32, 132 such as described hereinabove. The side wall 84, is of substantially tubular shape and extends along the second longitudinal axis 36.
The side wall 84 defines an inner recess 85, partially forming the chamber 73 of the gripping member 32, 132 such as described hereinabove. The lugs 74 materializing the axis of rotation 38 form an internal projection from said side wall 84, in said inner recess 85.
At the proximal end, the side wall 84 comprises a beveled cut 86, corresponding to the second edge 81 of the gripping member 32, 132 such as described hereinabove.
The second guiding element 75, 175 is arranged in the inner recess 85. Said second guiding element comprises a guide pad 87, 187 and a pad support 88, 188.
The guide pad 87, 187 has a sliding surface 89, 189, in the form of a strip extending substantially in the tangential direction, i.e. the direction of the rotary displacement of the gripping member 32, 132 with respect to the application member 30. The sliding surface 89, 189 is able to slide against the guide rail 62 of the first guiding element 48 of the application member 30. Parallel to the axis of rotation 38, the sliding surface 89, 189 has a dimension similar to that of said guide rail, in such a way as to take the place between the two studs 64.
The pad support 88, 188 mechanically links the pad 87, 187 to the side wall 84. Said pad support 88, 188, said pad 87, 187 and said side wall 84 are preferably formed from a single piece.
In the embodiments shown in
In the embodiment of
In the embodiment of
In the embodiment of
A method for using the assembly 10, 110 will now be described. During the application of the mascara using the applicator 14, 114, the application member 30 and the gripping member 32, 132 can be arranged in relation to one another in the first or in the second angular stable configuration.
It is considered that the applicator 14, 114 is in the first angular stable configuration of
The user then grasps the closing cap 44 and the external cover 83 and pivots the gripping member 32, 132 with respect to the application member 30, about the axis of rotation 38 by exerting a certain force or torque, for example of about 0.1 N·m, on the gripping element. The putting into contact of the guide rail 62 with the sliding surface 89, 189 causes an elastic deformation of the guide pad 87, 187. The radial stress between the first 48 and second 75, 175 guiding elements is as such increased until it reaches a maximum.
The rotation is continued along an angle α, until the second stable angular configuration of
The reverse rotation, from the second to the first stable angular configuration, unfolds in a similar way. When the guide rail 62 comes into contact with the first free edge 93 of the guide pad 87, or is engaged by snap-locking into the first notch 193 of the guide pad 187, the radial stress as such decreases abruptly, giving a feeling of the ratchet type to the user.
Moreover, in the first stable angular configuration, the first edge 80 of the gripping member 32, 132 is substantially in contact with the first half-ring 52 of the application member 30; likewise, the studs 64 of the application member 30 are in contact with the first tangential abutment 90, 190 of the gripping member 32, 132.
Similarly, in the second stable angular configuration, the second edge 81 of the gripping member 32, 132 is substantially in contact with the second half-ring 54 of the application member 30; likewise, the studs 64 of the application member 30 are in contact with the second tangential abutment 92, 192 of the gripping member 32, 132.
The presence of the first 90, 190 and second 92, 192 tangential abutments authorizes a gap between the first 80 and second 81 edges and, respectively, the first 52 and second 54 half-rings, in the first and second stable angular configurations. In an alternative not shown, the gripping member 32, 132 does not contain any tangential abutments 90, 190, 92, 192, the role of said abutments being solely fulfilled by the edges 80, 81 and the half-rings 52, 54.
In the embodiment of
In an alternative to the embodiment shown, the pad 187 is also mechanically connected to the side wall 84 in the vicinity of the first notch 193. Such an alternative makes it possible to rigidify the pad.
According to an embodiment not shown, the first 48 and second 75, 175 guiding elements allow the application member 30 and the gripping member 32, 132 to adopt an intermediate third angular stable configuration, corresponding also to a minimum radial elastic stress. This effect is for example obtained by adding a third notch between the first 193 and second 194 notches of the guide pad 187 of
Number | Date | Country | Kind |
---|---|---|---|
16 57940 | Aug 2016 | FR | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/EP2017/070136 | 8/9/2017 | WO |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2018/036816 | 3/1/2018 | WO | A |
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Number | Date | Country | |
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20210386180 A1 | Dec 2021 | US |