Classifications

• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
  • A46B3/005—Bristle carriers and bristles moulded as a unit
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B9/00—Arrangements of the bristles in the brush body
  • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
  • A46B9/021—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B9/00—Arrangements of the bristles in the brush body
  • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
  • A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B9/00—Arrangements of the bristles in the brush body
  • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
  • A46B9/028—Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
  • A46D1/02—Bristles details
  • A46D1/0253—Bristles having a shape which is not a straight line, e.g. curved, "S", hook, loop
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B2200/00—Brushes characterized by their functions, uses or applications
  • A46B2200/10—For human or animal care
  • A46B2200/1046—Brush used for applying cosmetics
  • A46B2200/1053—Cosmetics applicator specifically for mascara
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B33—ADDITIVE MANUFACTURING TECHNOLOGY
  • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
  • B33Y10/00—Processes of additive manufacturing

Definitions

• the invention relates to a device for applying a fluid or pasty product to keratin fibers or to an epidermis or a portion thereof.
• the invention relates to a device for applying a cosmetic, make-up or care product to the hair, eyelashes, eyebrows, skin or lips.
• An object of the invention is to provide an applicator device for a fluid or pasty product allowing improved optimized application of the product while maintaining the qualities of comfort for its user.
• a device for applying a fluid or pasty product to keratin fibers or to a portion of epidermis comprising an elongated core extending along a longitudinal axis X and of longitudinal cylindrical shape, a plurality of spikes, distributed over said core, each spike extending from an anchoring end in the core towards a free end and being integral with said core, each spike comprising a first stage extending from the anchoring end towards an intermediate section and a second stage extending from the intermediate section towards the free end, each spike further comprising a joint face parallel to the longitudinal axis X, each spike comprising an intermediate point, midpoint of a segment of intersection between the joint face and the intermediate section, included in a first half-disc of radius R1, a segment of which forming a diametral edge is
• the applicator device according to the invention has at least one of the following characteristics:
• a value of the radius R1 is less than or equal to half of a value of the height H1;
• a value of the radius R2 is less than or equal to a value of the height H2;
• the seal face rests on a complex surface resulting from a generatrix moving along the longitudinal axis X;
• the generatrix has a ball point at the intermediate section dividing the generatrix into two half-generators
• At least one of the half-generators is a curve of first radius of curvature or a half-segment
• the other half-generator is a curve with a second radius of curvature or a half-segment
• the kneecap point is a point of inflection
• each spike has a third stage or more extending from the free end of the second stage and arranged similarly to the second stage;
• a section of the first floor is different from a section of the second floor
• each pin has a blank extending projecting from the seal face
• the blank has at least one indentation
• the blank has a second cutout, the first cutout being on the first floor and the second cutout being on the second floor; and, - two at least pins of the plurality of pins have heights H1 and
• H2 different from one spike to another.
• FIG. 1 is a side view of a first embodiment of an applicator device according to the invention.
• FIG. 1 is a front view of the applicator device of Figure 1;
• FIG. 3 is a three-dimensional view of the applicator device of Figure 1 in which a single row of pins is shown;
• FIG. 5 is a front view of the applicator device of Figure 3;
• FIG. 6 is a three-dimensional top and side view of a first stage of a spike of the applicator device according to the invention.
• FIG. 7 are three-dimensional, top and side views of the second stage of a spike of the applicator device according to the invention.
• FIGS. 8 to 13 are figures illustrating different ways of generating the complex surface S on which rests the joint blank of the pins of the applicator device according to the invention
• FIG. 14 is a three-dimensional view illustrating an alternative embodiment of a spike of the applicator device according to the invention.
• FIG. 15 is a three-dimensional view of a second embodiment of a spike of the applicator device according to the invention.
• FIG. 16 are three-dimensional, front and side views of a third embodiment of a spike of the applicator device according to the invention.
• - Figure 17 is a three-dimensional view of a fourth embodiment of a spike for the applicator device according to the invention
• - Figure 18 is a three-dimensional view of a fifth embodiment of a spike for the applicator device according to the invention
• FIG. 19 is three-dimensional views of a sixth embodiment and two variants thereof of a spike for the applicator device according to the invention.
• FIG. 22 are three-dimensional, front and side views of a seventh embodiment of a spike for an applicator device according to the invention.
• FIGS. 23 and 24 are three-dimensional, side and front views of two variant embodiments of the pin of Figure 22;
• FIG. 25 is a three-dimensional view of a second embodiment of an applicator device according to the invention.
• FIG. 26 is a front view of the applicator device of Figure 25;
• FIG. 27a and 27b illustrate a third embodiment of an applicator according to the invention on which a single row of spikes is shown in order to simplify and facilitate the description;
• FIG. 28 is a side view of another embodiment of an applicator device according to the invention.
• FIG. 29 is a front view of the applicator device of Figure 28;
• FIG. 30 is a three-dimensional view of the applicator device of Figure 28 in which two adjacent rows of spikes are shown;
• Figure 31 is a detail view of Figure 30.
• FIG. 32 is a front view of the applicator device of Figure 30.
• the applicator device 1 is, here, a mascara brush. It includes, here, a soul 2 which extends longitudinally along a longitudinal axis X.
• the core 2 may have a cross-section that is constant or not over a length. In the most common embodiments, either the cross section is constant, or the cross section decreases from a proximal end in engagement with a tube and/or a handle to a distal free end.
• the core 2 is generally cylindrical in shape, preferably of axis revolution, the longitudinal axis X.
• the cross section of the core 2 can have a circular, polygonal, oval or other shape. It can be asymmetrical.
• Core 2 can be solid or hollow. The person skilled in the art will choose the most appropriate core 2 based on economic and/or technical constraints.
• the applicator device 1 comprises a plurality of spikes 3 distributed over the core 2.
• the spikes 3 extend projecting from an outer peripheral surface of the core 2.
• pins 3 are, for example, integral with the core 2.
• the pins 3 are obtained by molding or by adding material to the core 2.
• the pins 3 are distributed in adjacent rows two to two extending longitudinally parallel to the longitudinal axis X.
• the pins 3 of the same row extend in the same way according to the same orientation, parallel to each other from the core 2. This allows by the following to simplify and clarify the explanation and description of the applicator device 1 according to the invention.
• the pins 3 of one of the adjacent rows are oriented differently from the pins 3 of the other adjacent row.
• the barb 3 has an inking end 34 and a free end 35.
• the inking end 34 is connected to the core 2 of the applicator device 1 according to the invention.
• the barb 3 therefore extends projecting from the inking end 34 to the free end 35.
• the barb 3 comprises a first stage 33, or proximal stage, followed by a second stage 32, or distal stage, ending with the free end 35.
• the junction between the first 33 and second 32 stages of the pin 3 is materialized by an intermediate section 331 illustrated in FIGS. 6 and 7.
• the pin 3 also has a seal face 30 substantially parallel to the longitudinal axis X of the core 2 of the application device 1 according to the invention. It should be noted that this seal face 30 is concomitant with the seal face of the mold (in the case of the use of injection molding to produce the applicator device according to the invention): when this seal face of the mold is plane, it is also commonly called parting plane.
• This seal face 30 extends from the inking end 34 to the free end 35. At the level of the first floor, the seal face 30 therefore extends from the inking end 34 to the intermediate section 331.
• the first stage 33 of the pin 3 extending over a height H1, the point A1 is located in a virtual half-disk D1 of radius R1 of which a segment forming a diametral edge D10 of the half-disk D1 is parallel to the longitudinal axis X and rests on a plane parallel to a radial plane comprising said longitudinal axis X.
• a value of the radius R1 is less than or equal to half a value of the height H1.
• the second floor 32 From the intermediate section 331 to the free end 35, the second floor 32 has a height H2. It is located in the continuity of the first floor 33 on which it is based. Again, at a section of the free end 35, we define a point A2 in the same way as the point A1, i.e. it is located in the middle of a segment defining the intersection between the section of the free end 35 of the second stage 32 with the joint face 30 of the pin 3. In a manner substantially similar to the first stage 33, the point A2 is located in a second virtual half-disc D2 of radius R2 a segment of which forming a diametral edge D20 is parallel to the longitudinal axis X and rests on a plane parallel to the radial plane comprising the longitudinal axis X.
• the virtual half-disc D2 extends parallel to and facing the half- virtual disk D1 at a distance H2.
• the segment D20 is parallel to the segment D10 and the center of the half-disc D2 is aligned with the center of the half-disc D1 with regard to the Z axis, itself perpendicular to the longitudinal axis X, as well as to the axis Y perpendicular to the other two and which defines the direction of development of the pin 3.
• a value of the radius R2 is less than or equal to a value of the height H2 of the second stage 32 of the spike 3 of the applicator device 1 according to the invention.
• the applicator device T is, here, a mascara brush. It comprises, here, a core 2' which extends longitudinally along a longitudinal axis X.
• the core 2' has, here, a frustoconical shape: a cross section decreases from a proximal end in engagement with a tube and/or a grip handle to a distal free end.
• the cross section of the core 2' can have a circular, polygonal, oval or other shape. It can be asymmetrical.
• the 2' core can be solid or hollow. The person skilled in the art will choose the most appropriate 2' core according to economic and/or technical constraints.
• the applicator device T comprises a plurality of pins 3, 3′ distributed over the core 2′.
• the pins 3.3′ extend projecting from an outer peripheral surface of the core 2′.
• the 3.3' pins came from the material with the 2' core.
• the pins 3, 3' are obtained by molding or by adding material to the core 2'.
• the pins 3,3' are distributed in adjacent pairs two by two of two facing rows extending longitudinally parallel to the longitudinal axis X.
• the pins 3' of the same row extend in the same way along the same orientation, parallel to each other from the core 2'. This subsequently makes it possible to simplify and clarify the explanation and description of the applicator device T according to the invention.
• the pins 3 of one of the rows facing the pair in question are oriented differently from the pins 3' of the other row facing each other. the considered pair.
• the pins 3 and 3' are positioned, here, in staggered rows along a line parallel to the longitudinal axis X.
• the barb 3,3' has an inking end 34 and an end free 35.
• the inking end 34 is connected to the core 2' of the applicator device T according to the invention.
• the pin 3.3' therefore extends projecting from the inking end 34 to the free end 35. From the inking end 34, the pin 3.3' comprises a first stage 33, or proximal stage, followed by a second stage 32, or distal stage, ending in the free end 35.
• the junction between the first 33 and second 32 stages of the pin 3 is materialized by an intermediate section 331 illustrated in FIGS. 6 and 7, as previously described.
• the barb 3, 3′ respectively also has a seal face 30, 30′ respectively, substantially parallel to the longitudinal axis X of the core 2′ of the applicator device T according to the invention. These seal faces 30,30' extend from the inking end 34 to the free end 35.
• the particularity of the embodiment of the applicator device T according to the invention is that the seal face 30 and the seal face 30' rest on either side of the same complex surface S: thus the face joint 30' is complementary to the joint face 30
• Such a construction and such an arrangement of the spike 3.3' for an applicator device 1, 1' according to the invention make it possible to achieve a varied positioning and shape for the spike 3.3' which may be different from a spike to the other of the plurality of spikes arranged on the core 2,2' of the applicator device 1,1' according to the invention.
• this surface S is composed of a first complex half-surface S1 corresponding to the first stage 33 of the pin 3 and of a second half-surface S2 corresponding to the second stage 32 of pin 3.
• the complex surface S is generated by a generatrix G moving along the longitudinal axis X. From this In fact, the generatrix G is made using half generatrices G1 and G2, respectively generating the first S1 and second S2 half-surfaces, and linked to each other by a ball point PR.
• the ball point PR is included in the intermediate section 331 of the pin 3.
• the two half-generators G1 and G2 are two half-segments thus generating flat surfaces S1 and S2.
• the two half-generators G1 and G2 presenting a different direction relative to each other. It is the same in Figure 9 except that the orientation of the half-generator G2 is reversed with respect to what is illustrated in Figure 8.
• the half-generator G1 is a curve, while the half-generator G2 remains a half-segment.
• the generatrix G is composed of two half-generators G1 and G2 formed by a curve each having a first and a second radius of curvature.
• the curvatures are reversed and the hinge point PR forms a point of inflection of the generatrix G thus formed.
• the first and second radii of curvature possibly being identical or different depending on the embodiment chosen.
• a variant is illustrated in Figure 13.
• the first and second radii of curvature of the half-generators G1 and G2 are in the same direction but the ball point PR is not a point of inflection unlike in FIGS. 11 and 13.
• first half-generatrix G1 is a half-segment and the second generatrix G2 is a curve having a radius of curvature.
• the first half-generatrix G1 is a half-segment and the second generatrix G2 is a curve having a radius of curvature.
• FIG. 10 a second embodiment of a pin 13 for an applicator device 1 according to the invention is illustrated in FIG. of that illustrated in FIG. 10, except that the ball point PR here forms a point of inflection or continuity (the tangents to the half-surfaces S1 and S2 are identical to the ball point PR) between the two half- surfaces S1 and S2.
• FIG. 15 a third embodiment of a spike 103 for an applicator device 1 according to the invention is illustrated.
• This pin 103 comprising the first 1033 and second 1032 stages, has a joint face 1030 which rests on a complex surface S similar to that illustrated in FIG. 12 and previously described.
• FIG. 16 a fourth embodiment of a spike 203 for an applicator device 1 according to the invention is illustrated.
• This comprises a joint face 2030 coming to bear on a complex surface S similar to that illustrated in FIG. 10.
• the latter had a continuous section at the level of the intermediate section between the first and the second floor forming the spike.
• the pin 303 of Figure 17 comprises first and second stages 3033 and 3032 whose joint face 3030 bears on a surface S similar to that illustrated in Figure 10. From this joint face 3030, the pin 303 has a blank 22 extending projecting in a shape having an edge described more fully in the aforementioned prior art document.
• Figure 18 is illustrated a first variant 403 of this pin and composed of two stages 4033 and 4032, except that here the seal face 4030 is based on a complex surface S as described previously in Figure 8.
• the spike 503 illustrated in FIG. 20 for example, comprises a notch 26 extending over the first 5033 and second 5032 stages.
• the pin 503 comprises a first notch 261 on the second floor 5032 and a second notch 262 on the first floor 5033, the two notches being provided in the blank 5022 of the pin 503.
• the first 6033,7033,8033 and second 6032,7032,8032 floors have, in side view (perpendicular to the XY plane), different orientations forming an angle in this plane at the level of the intermediate section 331 .
• This configuration described here can be transposed to all the other embodiments of the spike described.
• the indentations 26, 261, 262 make it possible to produce product reservoirs which will then be applied to the keratin fibers or the epidermis according to the destination of the applicator device 1 according to the invention.
• This applicator device 10 comprises a plurality of pins 403 as previously described with reference to FIG. 17 and makes it possible to illustrate some of the possibilities of arranging this plurality of pins 403 on the core 2 of the applicator device 10 according to the invention.
• the pins have joint faces which rest on three different complex surfaces Sa, Sb, Sc. This makes it possible to have a non-uniform positioning and distribution of the free ends of each of the pins 403, as well as an implantation of the latter in staggered rows on the core 2, giving the impression of clutter or chaos in this distribution.
• the pins 403 resting on the complex surface Sb have a total height different from a total height of the pins 403 resting on the complex surfaces Sa and Sc.
• the distribution of the pins 3 can be such that the different heights make it possible to produce a sinusoidal curve C on which the free ends 35 of the pins 3 are based to the same row knowing that from one row to the other, this sinusoidal C can be shifted in order to provide this impression of chaos or clutter previously described in FIGS. 25, 26.
• the curve C as a variant, can be arbitrary.
• the embodiment of the spike chosen or the embodiments of the spike chosen to produce an applicator device according to the invention can be produced by injection molding of plastic materials (such as thermoplastics, thermoplastic-elastomers, thermosets, etc.) or by adding material (printing three-dimensional) or by any other suitable manufacturing process to obtain such structures of an applicator device according to the invention.
• plastic materials such as thermoplastics, thermoplastic-elastomers, thermosets, etc.

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• Physics & Mathematics (AREA)
• Geometry (AREA)
• Coating Apparatus (AREA)
• Brushes (AREA)
• Media Introduction/Drainage Providing Device (AREA)
• Cleaning And Drying Hair (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=72422173

Family Applications (1)

Country Status (4)

Family Cites Families (6)

• 2020
  • 2020-09-04 US US18/024,191 patent/US20230292915A1/en active Pending
  • 2020-09-04 WO PCT/EP2020/074840 patent/WO2022048771A1/fr active Application Filing
  • 2020-09-04 CN CN202080106795.8A patent/CN116507243A/zh active Pending
  • 2020-09-04 EP EP20768017.4A patent/EP4208065A1/de active Pending

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