• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a brush (10) for applying a product (P) to the eyelashes and / or the eyebrows, comprising: - a core (40), in particular a twisted core, extending along a longitudinal axis (X) having a portion of the bristle-bearing core having a proximal end for attachment to a shaft and a distal end, wherein the portion of the bristle core having a rectilinear proximal portion extending over more than half of its length from the proximal end of the portion of the bristle-bearing core, and having at least one elbow formed on the distal end side of the bristle portion of the bristle, and - bristles (41) held by the web (40), the bristles (41) having free ends defining an envelope surface, the envelope surface having at least one longitudinally extending notch.
    公开号:FR3035303A1
    申请号:FR1553554
    申请日:2015-04-21
    公开日:2016-10-28
    发明作者:Alain Berhault；Audrey Thenin
    申请人:LOreal SA；
    IPC主号:
    专利说明:

    [0001] The present invention relates to brushes for applying a cosmetic product to eyelashes or eyebrows, especially a makeup or care product, for example mascara, and packaging and application devices comprising such a brush.
    [0002] Many applicators are known in which the brush comprises a core formed of two branches of a wire, twisted together and enclosing bristles. The bristles used being generally of the same length, the brush has, once the twisted branches, an envelope surface of cylindrical shape of revolution. Such a cylindrical form of revolution has limited effectiveness in terms of product loading of the eyelashes and separation. It has therefore been sought to give the envelope surface more complex shapes, to form on the brush, after spinning, more product-laden areas, to properly load the eyelashes and less or poorly loaded areas, used to separate the eyelashes . Finding the shape leading to optimal makeup results requires a lot of testing because a lot of factors come into play. In addition, it is economically interesting that the brush can be made simply and quickly. In addition, the core of the brush may be rectilinear or curved. Applications EP 0 832 580 and EP 0 842 620 relate to mascara brushes whose twisted core is entirely curved over its entire length. In the applications US 2009/0199862, EP 1 236 419, EP 1 236 420 and EP 1 236 421, the core of the brush may, in some cases, be slightly curved, the curvature extending over more than half of the length of the soul. The same is true of the brush FR 2,798,267, in which the brush is bent so as to allow the ends of the brush to contact the inner surface of the container. Applications EP 1 304 058 and KR 20-2009-0006822 relate to mascara brushes curved so as to reproduce the shape of the eyelash fringe over almost their entire length.
    [0003] Finally, the applications US 2010/0003065 and EP 1 236 421 relate to curved mascara brushes but devoid of notch.
    [0004] 3035303 2 There is a need to improve the makeup gesture and facilitate the application on the entire eyelash fringe, especially on the corner of the eye. There is also a need to perfect the brushes, particularly to provide brushes capable of satisfactorily makeup eyelashes and eyebrows, providing sufficient product loading and satisfactory combing. The invention aims to meet all or part of these needs, and thus has, according to one of its aspects, a brush for the application of a product on the eyelashes and / or the eyebrows, comprising: a core, in particular a twisted core, extending along a longitudinal axis 10 X, comprising a portion of the core carrying the bristles having a proximal end intended to be fixed to a rod and a distal end, the portion of the core having the bristles having a rectilinear proximal portion extending for more than half of its length from the proximal end of the portion of the bristle-bearing core, and having at least one elbow formed on the distal end side of the bristle the portion of the core carrying the bristles, and - bristles held by the core, the bristles having free ends defining an envelope surface S, the envelope surface S having at least one longitudinally extending notch. By the "distal end side" is meant that the bend is provided at a point in the portion of the core carrying the bristles nearer its distal end than at its proximal end. In other words, the elbow is formed at a point of the portion of the core carrying the bristles located less than 1/2 L from the distal end of the portion of the core carrying the bristles and more than 1/2 L is the proximal end of the portion of the bristle-bearing core, where L is the length of the portion of the bristle-bearing core measured between its proximal end and its distal end. In absolute value, the length L can be between 15 mm and 45 mm, better between 20 mm and 40 mm, or even between 25 mm and 35 mm. The brush according to the invention can facilitate the makeup of the eye, especially the corner of the eye, and even more particularly the inner corner of the eye. The distal portion of the brush, located after the bend of the soul, is preferentially reserved for this purpose.
    [0005] 3035303 3 It is also possible with the brush according to the invention, make-up by placing the brush facing the face rather than across, which can provide new makeup effects and reach some difficult eyelashes otherwise to make up with precision, keeping a good visibility of the eyelashes during the operation. It thus facilitates the makeup of the eyelashes by maintaining the brush in a plane substantially perpendicular to the face. Such an angled shape of the soul may allow the user to wear makeup while keeping the elbow close to the body. The make-up of the eye is then less painful than with a rectilinear brush.
    [0006] Finally, the brush according to the invention can provide a satisfactory spin with a conventional wiper member. The elbow may be provided at a point in the core less than 1/3 L from the distal end of the portion of the bristle core and more than 2/3 L from the proximal end of the bristle. portion of the soul carrying the hairs. The elbow may be provided at a point 15 of the core located within 1/4 L of the distal end of the portion of the bristle core and more than 3/4 L of the proximal end of the bristle. the portion of the soul carrying the hairs. The core may comprise a rectilinear distal portion, formed between the elbow and the distal end of the portion of the core carrying the bristles. The rectilinear distal portion may extend over a length Ld of between 1/12 L and 1/2 L, better still between 1/6 L and 1/3 L, even between 1/5 L and 1/4 L. absolute value, the length Ld may be between 1 mm and 12 mm, better between 2 mm and 10 mm, or even between 3 mm and 7 mm. The rectilinear proximal portion, formed between the elbow and the proximal end of the portion of the core carrying the bristles, may extend over a length Lp between 1/2 L and 11/12 L, better between 2/3 L and 5/6 L, or even between 3/4 L and 4/5 L. In absolute value, the length Lp may be between 10 mm and 30 mm, better still between 12 mm and 25 mm, or even between 15 mm and 20 mm. The rectilinear proximal and distal portions of the portion of the core carrying the bristles may form between them an angle γ between 100 and 60 °, more preferably between 15 ° and 50 °, for example between 20 ° and 30 °.
    [0007] The bend may have a radius of curvature of between 5 and 25 °. The bend may be formed in a plane P containing the longitudinal axis X of the core, the envelope surface having a notch whose axis extends in said plane P.
    [0008] By "arranged in the plane P", it is meant that the rectilinear proximal and distal portions of the portion of the core carrying the bristles extend in the plane P and that the notch generally extends along this plane P The brush is preferably attached by its proximal end to a rod.
    [0009] Preferably, the core is a twisted core. By "twisted core", it is necessary to understand a core formed by twisting two branches of a wire one on the other, conventionally. The longitudinal axis X is preferably rectilinear, except the aforementioned bend. The brush may be chamfered at its proximal and / or distal ends.
    [0010] Notch The brush according to the invention makes it possible, in particular, thanks to the notch (s), to be able to store product over a large part of its length, in order to bring a sufficient load of product onto the eyelashes and / or the eyebrows. The notch may have the following characteristics, separately or simultaneously: - a length L2 with L2> L / 2, with L the length of the portion of the core carrying the bristles, - a width w, measured at the bottom of the notch, constant over at least a portion of its length L2, and 20 - a distance d to the longitudinal axis varying along its length. The constant width of the bottom of the notch over a portion of its length facilitates manufacture, because the notch can be hollowed by a cutting tool moving along the longitudinal axis of the core, turning on it. even around an axis of rotation perpendicular to the longitudinal axis of the soul.
    [0011] It is possible to have a notch bordered by rather stiff flanks, if desired, which provides advantageous ridges for separating the eyelashes. The variable depth of the notch makes it possible to have more product in a predefined region of the brush, for example at about half length, and less product elsewhere; it may be advantageous to have less product near the distal end 30 of the brush, so as to use this region of the brush to separate the eyelashes, especially those of the corner of the eye.
    [0012] The notch can be made by moving a haircut tool both along an axis parallel to the longitudinal axis of the web and an axis perpendicular to the longitudinal axis of the web. the soul, the longitudinal displacement to define the length L2 of the notch and the perpendicular displacement to define the distance d to the longitudinal axis. The cutting tool may have a longitudinal axis perpendicular to the longitudinal axis of the core and parallel to the bottom of the notch or, alternatively, perpendicular to the bottom of the notch. Preferably, this cutting tool is rotated about its longitudinal axis. The width of the cutting end of the cutting tool gives the width of the notch.
    [0013] Alternatively, such a notch is achieved by moving a cutting tool about an axis of rotation perpendicular to the longitudinal axis of the core, including an axis parallel to the bottom of the notch. The cutting tool may have a longitudinal axis perpendicular to the bottom of the notch. Preferably, this cutting tool is rotated about its longitudinal axis.
    [0014] Preferably, the length L 2 of the notch is such that L 2> 2 / 3L. This allows to have a notch that extends over a very large part of the length of the core carrying the bristles, which allows in particular to obtain the desired effect on most lashes with a minimal gesture. The width of the notch may be constant over a length portion L 3 of the notch greater than or equal to 10% of the length L 2 of the notch, better than or equal to 50% of the length L 2 of the notch. notch, better still greater than or equal to 75% of the length L2 of the notch, and even better along the entire length L2 of the notch. The distance to the longitudinal axis taken in a longitudinal median plane of the notch, may vary continuously over the length of the notch. The distance to the longitudinal axis d can evolve along a curve devoid of angular points. This makes it possible to vary, in particular continuously, the quantity of product stored in the brush according to the position along the longitudinal axis X. The bottom of the notch may have, in longitudinal section, a concave profile towards the outside, having in particular an outward radius of curvature of between 20 mm and 80 mm, more preferably between 40 mm and 65 mm. The notch may have, in cross section, a flat bottom or a convex bottom to the outside. In the case where the bottom is outwardly convex, the bottom may form, in cross-section, an arc having a radius substantially equal to the distance to the longitudinal axis d. The shape of the bottom of the notch is defined entirely by the cutting tool. In the case where the bottom is flat in cross section, the longitudinal axis of the cutting tool 5 is preferably perpendicular to the bottom of the notch or the width of the bottom of the notch. In the case where the bottom of the notch is convex outward in cross-section, the longitudinal axis of the cutting tool is preferably parallel to the bottom of the notch and the surface of the cutting tool cut forming the bottom of the notch has a concave profile outwardly in the direction of the width of the bottom of the notch.
    [0015] The flanks of the notch are preferably outwardly divergent. The flanks of the notch may form between them an angle of between 20 ° and 60 °, better between 30 ° and 50 °, even better between 35 ° and 45 °. The shape of the flanks is due in particular to the radial orientation of the hairs from the soul. Indeed, the flanks are formed by the neighboring hairs of the notch which have not been cut by the cutting tool.
    [0016] The width w of the notch may be between 1 mm and 4 mm, more preferably between 1.5 mm and 3.5 mm. The ratio w / W can be between 0.9 and 0.4, preferably between 0.8 and 0.7, W being the width of the notch measured on the surface thereof. The minimum distance d ,,,, to the longitudinal axis may be between 1 mm and 4 mm, better still between 2.5 mm and 3.5 mm. The ratio 2d, 2 './D can be between 0.4 and 0.9, more preferably between 0.6 and 0.9. The envelope surface preferably has a plurality of notches, in particular between 3 and 6 notches, preferably four notches. Preferably, the notches are evenly distributed around the core.
    [0017] The envelope surface, apart from the notches, may be cylindrical. Before the formation of the bend of the core, the envelope surface, apart from the notches, may be of revolution, in particular of circular section, having a diameter D. The w / D ratio may be between 0.4 and 0.1, preferably between 0.3 and 0.2. The length L of the portion of the core carrying the bristles may be less than or equal to 50 mm, more preferably 40 mm, measured along the longitudinal axis of the brush. It is between 25 and 35 mm for example.
    [0018] The invention further relates to a device for packaging and application, comprising: a container containing the product to be applied, and a brush according to the invention. The container may be provided with a squeezing member to remove excess product from the shank and the brush. This wiper member comprises for example a lip made of an elastomeric material, defining a wick of circular section, whose diameter substantially corresponds to that of the rod.
    [0019] The invention also relates to a method for manufacturing a brush according to the invention, comprising the following steps: making a brush blank with a straight core, cutting the bristles to form one or more notches, then bend the soul. The envelope surface of the blank, after cutting and before cranking the core, may have a shape other than cylindrical of revolution. The notch (s) can be formed by moving a cutting tool at a time along an axis parallel to the longitudinal axis of the core and along an axis perpendicular to the longitudinal axis of the core. Alternatively or additionally, it can form the notch or not by moving a cutting tool about an axis perpendicular to the longitudinal axis of the core, including an axis parallel to the bottom of the notch. The cutting tool preferably has a longitudinal axis parallel or perpendicular to the bottom of the notch, or perpendicular to the width of the notch. The cutting tool is preferably rotated about its longitudinal axis. In the case where the longitudinal axis of the cutting tool is perpendicular to the bottom of the notch or the width of the bottom of the notch, the cutting surface may be formed by a base of the cylinder. In this case, the bottom of the notch formed is preferably flat in cross section.
    [0020] In the case where the longitudinal axis of the cutting tool is parallel to the bottom of the notch, the cutting surface is formed by the lateral surface of the cylinder. In this case, the cross-sectional profile of the bottom of the notch depends on the profile of the generatrix of the cylinder.
    [0021] The cutting tool may be cylindrical in a generatrix oriented perpendicular to the longitudinal axis of the core and perpendicular to the bottom of the notch. The cutting tool preferably has a width substantially equal to the width w of the notch.
    [0022] The cutting tool may have a flat or concave cutting surface outwardly. DETAILED DESCRIPTION The invention will be better understood on reading the following detailed description, non-limiting examples of implementation thereof, and on examining the appended drawing, in which: FIG. 1 is a diagrammatic and partial longitudinal section of an exemplary packaging and application device according to the invention; FIGS. 2a and 2b are respectively views along arrows A and B of an example of a brush according to FIG. FIG. 3 is a longitudinal sectional view according to FIG. 2a; FIG. 4 is a cross-sectional view along line IV-IV of FIG. 2b; FIG. 5 is a view similar to FIG. 2b; 6a is a longitudinal sectional view similar to FIG. 3 of the brush of FIG. 5; FIG. 6b is a cross-sectional view similar to FIG. 4 of the brush of FIG. FIG. 5; FIG. 7a is a side view of the blank FIG. 7b is a view according to arrow B in FIG. 7a, FIGS. 8a and 8b are enlarged views respectively of FIGS. 4 and 6b, FIG. FIG. 9a represents an example of a method of manufacturing a brush according to the invention; FIG. 9b represents an alternative method of manufacturing a brush according to the invention; FIG. 9c represents a variant of a manufacturing method; 10A to 10G are views similar to FIG. 3 of variants of brushes, FIG. 11 is a longitudinal section of a brush variant according to the invention, FIG. 12 is a view along XII-XII of the brush of Figure 11, and - Figure 13 is a schematic top view of a brush variant according to the invention. In the remainder of the description, the identical elements or identical functions carry the same reference sign. Their description is not repeated with regard to each of the figures, only the main differences between the embodiments being mentioned. The device 1 of packaging and application shown in Figure 1 comprises a container 2 containing a product P to be applied to the eyelashes or eyebrows and an applicator 3 may, in the example, be attached in a removable manner on the container 2. The product P comprises for example one or more pigments, in particular an iron oxide. This is for example a mascara. The applicator 3 comprises a rod 5 of longitudinal axis Y, provided at a distal end 5a of the rod 5 of a brush 10 according to the invention, and at the other end 25 of a gripping member 11 constituting also a sealing cap of the container 2. The latter comprises, as can be seen in particular in Figure 1, a body 13 provided superiorly with a threaded neck 14, on which the gripping member 11 can be screwed to close In a variant, the attachment of the applicator to the container may be effected otherwise.
    [0023] The neck 14 can accommodate, as illustrated, a wiper member 20, which is for example reported in the neck 14. This wiper member 20 has a lip 26 defining a wiper orifice of diameter adapted to that of the stem S.
    [0024] The brush 10 may be conventionally fixed in a recess provided at the distal end 5a of the rod 5, which is advantageously made of a thermoplastic material. The brush 10 comprises a twisted metal core 40 having a portion 43 of the bristle core, which is attached to a proximal end 40a in the corresponding housing of the shank 5 by a portion of the bristle-free core, which can be of a length of the order of 8 mm. The portion 43 of the core carrying the bristles also has a free end 40b. The core 40 carries bristles 41 whose free ends define, as illustrated in FIG. 2, an envelope surface S of the brush 10. The bristles 41 extend, as illustrated in FIG. 4, over a length L the core preferably between 25 mm and 35 mm, here substantially equal to 30 mm. The core 40 is conventionally formed by two branches of a U-folded wire, the bristles 41 being caught between the turns of the core 40. The diameter of the wire 15 is, for example, between 0.1 to 1 mm. . The diameter of the bristles is for example between 0.06 and 0.35 mm. The portion 43 of the bristle-bearing core has a rectilinear proximal portion 43a extending over more than half its length from the proximal end 40a of the portion of the bristle-bearing core, as well as a distal portion. rectilinear 43b.
    [0025] The rectilinear distal portion 43b extends over a length Ld, which is of the order of 5 mm in the example described. The rectilinear proximal portion 43a extends over a length Lp, which is of the order of 25 mm in the example described. The core has at least one elbow 44 between the proximal portion 43a and distal 43b of the portion of the core carrying the bristles. The elbow is formed on the distal end of the portion of the bristle core, i.e., the elbow is formed at a point in the portion of the bristle-bearing core. its distal end 40b that its proximal end 40a. In this example, the elbow 44 is formed at a point of the core located about 1/6 L of the distal end of the portion of the core carrying the bristles and about 5/6 L of the proximal end of the portion of the soul carrying the hairs.
    [0026] The rectilinear proximal 43a and distal 43b portions of the portion of the core carrying the bristles may form between them an angle y of the order of 350 approximately. The elbow may have a radius of curvature of between 5 and 25 °. The bend 44 is formed in the example described in a plane P containing the longitudinal axis X of the core, the envelope surface having a notch 45 whose axis extends in said plane P. This plane P is the plane of Figure 2b. The rectilinear proximal and distal portions of the core extend in the plane P. As illustrated in FIGS. 2a, 2b, 3 and 4, the envelope surface S comprises several notches 45, four in number, extending longitudinally on the along an axis 10 substantially parallel to the longitudinal axis X of the core 40. As can be seen in FIG. 3, the notches 45 extend over a length L 2 greater than more than% of the length L of the portion 43 of the core 40 carrying the bristles 41, here the length L2 is greater than 3/4 of the length L. In the variant embodiment illustrated in FIGS. 5, 6a and 6b, the angle y is slightly more small, being of the order of 25 °, and the shape of the notches is different, as will be described in detail with reference to Figures 8a and 8b. FIGS. 7a and 7b also illustrate the blank E used to obtain the brush of FIGS. 5, 6a and 6b. The envelope surface S of the blank has substantially the shape of a cylinder of revolution. The maximum radius R of the envelope surface S, corresponding to the radius of the smallest cylinder of revolution in which the blank fits, is between 3 mm and 6 mm, here substantially equal to 4.2 mm. We will now describe in more detail the notches 45. The notches 45 have a distance d to the longitudinal axis X, variable along their length L2, including a distance d continuously variable. In longitudinal section, as shown in Figure 3, the notches 45 have a concave profile outwardly, especially in an arc. The radius of curvature r of the profile of the notches 45 is preferably between 40 mm and 65 mm, being for example of the order of 50 mm. The minimum distance d ,,,, to the longitudinal axis X is preferably between 2.5 and 3.5 mm, for example substantially equal to 3 mm. The dni, n / R ratio is preferably between 0.4 and 0.9, more preferably between 0.6 and 0.9, more preferably about 0.7. In the example illustrated in FIGS. 1 to 4, the envelope surface S comprises four identical notches 45 which are evenly distributed around the core 40. The notches 45 have a convex bottom 47 towards the outside. In cross section, the bottom 47 of the notches 45 may form a circular arc radius substantially equal to d. As can be seen in FIG. 8a, the width of the notches 45, measured at the bottom 47 of the notches 45, is constant over the entire length L2 of the notches 45. The width 5 of the notches 45 is preferably between 1 mm and 4 mm, better between 1.5 mm and 3.5 mm, here substantially equal to 2.3 mm. The notches 45 have flanks 49 diverging outwards and forming between them an angle of between 35 ° and 45 °, here substantially equal to 40. The width W of the notches 45, measured at their surface, is therefore greater than the width at the bottom of the notches 45. The ratio of the widths 142 / W is preferably between 0.8 and 0.7. As illustrated in Figures 2a, 2b and 3, the ends 52 of the envelope surface S are chamfered. This may facilitate the passage of the brush 3 in the wiper 20. The chamfer at the distal end and the chamfer at the distal end are different here. The chamfer angle of the distal end is, in particular, less inclined than that of the proximal end. The example illustrated in FIG. 8b differs from that illustrated in FIG. 8a in that the shape of the bottom 47 of the notches 45 is flat. The notches 45 may be made with a cutting tool 52, illustrated in Figures 9a to 9c. The cutting tool 52 is preferably in the form of a cylinder, in particular a cylinder of revolution. The cutting tool 52 has a cutting surface contacting the bristles 41 and cutting the bristles 41 to form a notch 45. The width of the cutting surface of the cutting tool 52 defines the width of the bristle. notch 45. The cutting tool 52 has a longitudinal axis Z and is rotated about said longitudinal axis Z. This facilitates the cutting of the bristles.
    [0027] In the example illustrated in FIG. 9a, the cutting of the bristles 41 is carried out by moving the cutting tool 52 according to both a direction A parallel to the longitudinal axis X and a direction B perpendicular to the axis. longitudinal X. The longitudinal axis Z is perpendicular to the width IF of the bottom 47 of the notch 45. The cutting surface is formed by the free base 54 of the cylinder forming the cutting tool 52. Such a cutting tool 52 30 provides a notch 45 having a flat bottom 47 in cross section. In the example illustrated in FIG. 9b, the cutting of the bristles 41 is carried out by moving the cutting tool 52 according to both a direction A parallel to the longitudinal axis X and a direction B perpendicular to the longitudinal axis X. The longitudinal axis Z is parallel to the bottom 47 of the notch 45. The cutting surface is formed by the lateral surface 56 of the cylinder forming the cutting tool 52. The shape of the generatrix of the cylinder allows, in this case, to define a particular shape for the bottom 47 of the notch 45. For example, if the generator is a straight line, the bottom 47 will be flat in cross-section, and if the generator is concave outwards, the bottom 47 will be convex outwardly in cross section. In the example illustrated in FIG. 9c, the cutting of the bristles 41 is carried out by moving the cutting tool 52 about an axis perpendicular to the longitudinal axis of the core X and parallel to the bottom 47 of the notch 45 in a direction C. The longitudinal axis Z is perpendicular to the bottom 47 of the notch 45. The cutting surface is formed by the free base 54 of the cylinder forming the cutting tool 52. Such a cutting tool 52 provides a notch 45 having a flat bottom 47 in cross section. The examples of FIGS. 10A to 10G differ from those illustrated in FIGS. 2a to 6b by the shape of the envelope surface S before the core is bent. Figures 10A to 10G show symmetrical shapes of revolution. In the example illustrated in FIG. 10A, the envelope surface S, apart from the notches, is in the form of a peanut. It has a diameter passing through a minimum 60 between two bulging portions 62 and 64, one 62 being proximal and the other 64 distal. The envelope surface S is symmetrical with respect to the transverse plane of the minimum diameter. The notches 45 are, for example, made from one bulged portion 62 to the other 64, as illustrated. In the example illustrated in FIG. 10B, the envelope surface S, apart from the notches, is in the form of a shell. It has a diameter passing through a maximum 70 near the distal end at a larger diameter circle. The body of the brush 3 is frustoconical, being connected by its base coincides with the circle of larger diameter at the distal end portion of the brush 3 of ogival shape. The notches 45 extend, for example, from the proximal end to the larger diameter portion.
    [0028] In the example illustrated in FIG. 10C, the envelope surface S, apart from the notches, is in the shape of a buoy. The envelope surface S is defined by two frustoconical portions 80 and 82 contiguous to their larger diameter base. Notches 45 3035303 14 extend, for example, from the proximal end to the junction between the two frustoconical portions 60 and 62. In the example illustrated in FIG. 10D, the envelope surface S, excluding the notches, is defined by 3 frustoconical portions 90, 92 and 94 contiguous by their base. The frustoconical portion 90 is located at the proximal end and the portion 94 at the distal end. The portion 92 extends between the two end portions 90 and 94 and is connected to the proximal portion 90 by its larger diameter base and the distal portion 94 by its smaller diameter base. The notches 45 extend, for example, only along the central portion 92.
    [0029] In the example illustrated in FIG. 10E, the envelope surface S, apart from the notches, is asymmetrically shaped peanut. It has a diameter passing through a minimum 100 between two enlarged portions 102 and 104, one 102 being proximal and the other 104 distal. The minimum 100 is closer to the distal end than to the proximal end. The enlarged portions 102 and 104 have larger diameters 15, in particular the largest diameter of the portion 104 is smaller than the largest diameter of the portion 1021. The notches 45 are, for example, made of a bulging portion 102 to the other 104, as illustrated. In the example illustrated in FIG. 10F, the envelope surface S, apart from the notches, also has a swollen shape. It has a diameter passing through a maximum 110. This maximum 110 is located substantially in the center of the portion of the core carrying the bristles. The distal end 114 and the proximal end 112 have different diameters, in particular the diameter of the distal end 114 is smaller than that of the proximal end 112. The notches 45 extend, for example, from the distal end 114 at the proximal end 112.
    [0030] In the example illustrated in FIG. 10G, the envelope surface S, apart from the notches, has the general shape of a diabolo with two frustoconical end portions 120 and 112 connected by their larger diameter base to two respective cylindrical portions 124 and 126, themselves connected by a thinner portion 128 towards the center. This portion 128 has a minimum diameter 130 substantially in the center of the portion of the core carrying the bristles. The cylindrical portions 124 and 126 are of the same thickness and of different diameters. The distal cylindrical portion 126 has a diameter smaller than the proximal cylindrical portion 124. The frustoconical portions 120 and 122 are of the same thickness. The notches 45 are, for example, made from one cylindrical portion 124 to the other 126, as illustrated. The example of FIGS. 11 and 12 differs from that of FIGS. 2a to 6b in that the envelope surface S is not symmetrical with revolution and in that it comprises only one notch 45. The envelope surface S may have an angular sector 140 defined by bristles longer than the rest of the brush 3. The angular sector 140 extends over the entire length L of the brush 3 and may have, in longitudinal section, a variable height profile relative to the longitudinal axis X, in particular a dorsal fin-shaped profile. Within the angular sector 140, the height of the envelope surface S can pass through a maximum 142 near the proximal end. The remainder of the envelope surface S, except for the notch 45, may have a bulged shape symmetrical with respect to a median plane M. The notch 45 may extend on the envelope surface S from the proximal end to the end distal, other than on the angular sector.
    [0031] Alternatively, the notch 45 may extend over the angular sector 140 from the proximal end to the di stale end. The example of FIG. 13 differs from that of FIGS. 2a to 6b in that the notches 45 have a variable width w on two portions 150 and 152 and are constant over a portion 154 extending between the portions 150 and 152. The portion 154 has a length L3 making more than 50% the length L2 of the notch 45. In general, the envelope surface may comprise a different number of notches and the latter may not be identical to each other and / or Equivalents around the core 40. The longitudinal section profile of the notches may have angular points, in particular be formed of contiguous segments. The invention is not limited to the embodiments which have just been described, the characteristics of which can be combined within non-illustrated variants. For example, the notches of the examples of Figures 10A-12 may have a concave bottom as shown in Figure 8a.
    [0032] 30 The expression "comprising one" must be understood as being synonymous with "comprising at least".
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. Brush (10) for applying a product (P) to the eyelashes and / or the eyebrows, comprising: - a core (40), in particular a twisted core, extending along a longitudinal axis (X), comprising a portion (43) of the bristle-bearing core having a proximal end (40a) for attachment to a shaft and a distal end (40b), the portion of the bristle-bearing core having a rectilinear proximal portion (43a); ) extending more than half its length from the proximal end of the portion of the bristle-bearing core, and having at least one elbow (44) on the distal end side of the bristle portion having the bristles, and - bristles (41) held by the core (40), the bristles (41) having free ends defining an envelope surface (S), the envelope surface (S) having at least one notch (45) extending longitudinally.
    [0002]
    2. Brush according to the preceding claim, wherein the elbow (44) is formed at a point of the core (40) located less than 1/3 L of the distal end of the portion of the core carrying the bristles. and more than 2/3 L from the proximal end (40a) of the portion of the bristle-bearing core, where L denotes the length of the portion of the bristle-bearing core.
    [0003]
    3. Brush according to any one of the preceding claims, wherein the portion (43) of the core carrying the bristles comprises a rectilinear distal portion (43b) formed between the elbow (44) and the distal end (40b). of soul.
    [0004]
    4. Brush according to any one of the preceding claims, wherein the rectilinear proximal portion (43a), formed between the elbow and the proximal end of the portion of the core carrying the bristles, extends over a length Lp included between 1/2 L and 11/12 L, better between 2/3 L and 5/6 L, even between 3/4 L and 4/5 L, where L designates the length of the portion of the core carrying the bristles .
    [0005]
    5. Brush according to any one of the preceding claims, wherein the rectilinear proximal portions (43a) and distal (43b) of the core form between them an angle (y) between 100 and 60 °, better between 15 ° and 50 °.
    [0006]
    Brush according to any one of the preceding claims, wherein the elbow (44) is formed in a plane (P) containing the longitudinal axis (X) of the core, the envelope surface having a notch (45). whose axis extends in said plane (P).
    [0007]
    Brush according to any one of the preceding claims, the notch (45) having, in cross section, a flat bottom (47) or a bottom (47) convex towards the outside.
    [0008]
    8. Brush according to any one of the preceding claims, the bottom (47) of the notch (45) having, in longitudinal section, an outwardly concave profile, in particular having a radius of curvature r outwards understood between 20 mm and 80 mm, better between 40 mm and 65 mm. 10
    [0009]
    9. Brush according to any one of the preceding claims, the envelope surface S having a plurality of notches (45), in particular between 3 and 6 notches (45), preferably four notches (45).
    [0010]
    10. Brush according to the preceding claim, the notches (45) being equidistributed around the core (40). 15
    [0011]
    11. Brush according to any one of the preceding claims, the brush (10) being chamfered at its distal and proximal ends.
    [0012]
    12. Brush according to any one of the preceding claims, the core (40) being fixed by its proximal end (40a) to a rod.
    [0013]
    13. Packaging and application device (1) comprising a container (2) containing a product to be applied, and a brush (10) according to any one of the preceding claims.
    [0014]
    A method of manufacturing a brush according to any of claims 1 to 12, comprising the steps of: - producing a brush blank (10) with a straight core (40), - cutting the bristles so as to form one or more notches (45), in particular by moving a cutting tool (52) at a time along an axis parallel to the longitudinal axis of the core (40) and along an axis perpendicular to the longitudinal axis of the web (40) or by moving a cutting tool (52) about an axis perpendicular to the longitudinal axis of the web (40), in particular an axis parallel to the bottom (47) of the notch (45), 30 then - bend the soul. 3035303 18
    [0015]
    15. Method according to the preceding claim, wherein the envelope surface of the blank, after cutting and before cranking the core, has a shape other than cylindrical of revolution.
    类似技术:
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    同族专利:
    公开号 | 公开日
    US20180110320A1|2018-04-26|
    FR3035303B1|2017-05-12|
    WO2016169863A1|2016-10-27|
    EP3285612A1|2018-02-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1993016617A1|1992-02-27|1993-09-02|Georg Karl Geka-Brush Gmbh|Mascara brush|
    EP1236421A1|2001-03-01|2002-09-04|L'oreal|Applicator, especially brush, for applying a product on keratinous fibres|
    FR2991560A1|2012-06-07|2013-12-13|Oreal|Applicator for application of cosmetic product or care product such as mascara on keratinous fibers such as eyelashes, has longitudinal notches, where edge and notches are not parallel to longitudinal axis of core|
    US1659707A|1922-11-10|1928-02-21|Fuller Brush Co|Brush|
    FR2753614B1|1996-09-26|1998-10-30|BRUSH FOR APPLYING A COSMETIC PRODUCT AND MAKE-UP DEVICE COMPRISING SAME|
    FR2755593B1|1996-11-13|1999-01-08|Oreal|BRUSH FOR THE APPLICATION OF A COSMETIC PRODUCT AND MAKE-UP DEVICE COMPRISING SAME|
    IT1308222B1|1999-09-14|2001-12-10|Ennio Cardia|MASCARA APPLICATOR AND RELEVANT PRODUCT SCRAPER.|
    FR2821533B1|2001-03-01|2004-01-23|Oreal|BRUSH FOR APPLYING A PRODUCT ON KERATINIC FIBERS|
    FR2821536B1|2001-03-01|2003-05-16|Oreal|BRUSH FOR APPLYING A PRODUCT ON KERATINIC FIBERS|
    EP1304058A1|2001-10-17|2003-04-23|Crown Cork & Seal Technologies Corporation|Mascara brush|
    KR20090006822U|2007-12-31|2009-07-03|아모레퍼시픽|Mascara brush|
    FR2932657B1|2008-06-20|2010-08-13|Oreal|BRUSH WITH MASCARA.|
    KR20100004468A|2008-07-04|2010-01-13|주식회사 에이치케어|Makeup applicator and cosmetic in use with the applicator|FR3026620B1|2014-10-03|2016-12-23|Oreal|APPLICATOR FOR THE APPLICATION OF A COSMETIC PRODUCT|
    FR3060274B1|2016-12-20|2021-06-11|Oreal|MASCARA BRUSH|
    FR3060277B1|2016-12-20|2019-10-18|L'oreal|BRUSH FOR APPLYING A PRODUCT ON LACS OR EYEBROWS|
    法律状态:
    2016-03-09| PLFP| Fee payment|Year of fee payment: 2 |
    2016-10-28| PLSC| Search report ready|Effective date: 20161028 |
    2017-03-13| PLFP| Fee payment|Year of fee payment: 3 |
    2018-03-15| PLFP| Fee payment|Year of fee payment: 4 |
    2020-03-12| PLFP| Fee payment|Year of fee payment: 6 |
    2021-03-10| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1553554A|FR3035303B1|2015-04-21|2015-04-21|BRUSH FOR APPLYING A PRODUCT ON THE LASHES AND / OR THE EYE|FR1553554A| FR3035303B1|2015-04-21|2015-04-21|BRUSH FOR APPLYING A PRODUCT ON THE LASHES AND / OR THE EYE|
    PCT/EP2016/058445| WO2016169863A1|2015-04-21|2016-04-15|Brush for applying a product to the eyelashes and/or eyebrows|
    EP16716609.9A| EP3285612A1|2015-04-21|2016-04-15|Brush for applying a product to the eyelashes and/or eyebrows|
    US15/567,516| US20180110320A1|2015-04-21|2016-04-15|Brush for applying a product to the eyelashes and/or eyebrows|
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