MXPA97003811A - Brush with muescas and makeup device that includes this cepi - Google Patents

Abstract

The present invention relates to a brush, characterized in that it comprises: an elongated core defining a central axis of the brush, bristles placed radially in the core, the ends of the bristles define the outer surface of the brush, and the ends of the bristles more long define a wrapping surface, at least one notch on the outer surface of the ceipillo and comprising at least two drying faces, the first of the faces defines a non-concave rear notch and having a height which varies throughout of the axis, and the second of the faces defines a front and has a height which varies along the axis, the secant faces define at its intersection a channel line, where the intersection of the front notch of a notch with the brush-wrapping surface or with the rear notch of the second groove define a peak flange forming a vertex of an emergent angle (a), wherein the two drying faces are thus metric and form a reentrant angle (B) of between 60º and 180º at any point along the line of can

Description

BRUSH WITH MUESCAS AND MAKEUP DEVICE COMPRISING THIS BRUSH FIELD OF THE INVENTION The invention relates to a brush, in particular a brush for applying a cosmetic product on the keratin fibers, particularly for applying mascara on the eyelashes or a dye on the hair, as well as to a makeup device comprising this brush. The latter most often comprises an elongated core formed by the helical winding of two arms of a metal wire, hairs implanted radically in this web and fastened between these wound arms, comprising the < Brush at least one notch, the latter being intended to store the product of the draining.

BACKGROUND OF THE INVENTION It is known, in particular from documents FR-A-2 605 505 and FR-A-2,715,038, brushes for the application of a cosmetic product, constituted by a core in which radially hairs are implanted, including these cores less a concave notch that stores the drainage product. The brushes of the prior art allow to obtain variations of makeup, more or less loaded, more or less extended, according to the shape of the notches and their mode of use. However, the brushes of the prior art only comprise continuous surface recesses. Also known from GB-A-217099-6 are brushes for the application of a mascara on the lashes, these brushes including an alternation of long hairs and short hairs forming a U-shaped recess. brush only allows applying small amounts of mascara on the eyelash. In addition, the combing of the eyelashes and the spread of the mascara on the eyelashes is insufficient. ^ Although these brushes of the prior art provide | With satisfactory results, it has seemed desirable to have brushes that allow a good penetration of the eyelashes in the brush to ensure a good straightening of the product and a good separation of the eyelashes. The object of the invention is also to provide a brush that is simple and economical to apply and practical to use. The desired result is obtained surprisingly with the aid of a brush comprising an elongated core, hairs implanted radially in this core, at least one notch, this notch consisting of at least two drying surfaces, a first surface called "notched back" and a second surface called "notched front", which define by their intersection a cavity line, characterized in that the two surfaces are asymmetric and form an incoming angle ß at any point of their intersection included between 60 ° and 180. This brush can be used to comb and / or make up the hair, eyelashes, eyebrows, etc ... The external surface of the brush is defined by the ends of the hair of this brush. The wrapping surface of the brush is defined as the surface that wraps the ends of the longer bristles 1 of the brush. I The central axis of the brush is the axis defined by the brush core. The intersection of the brush with any plane perpedicular to the brush core is defined by a flat section of the brush. The intersecting angle ß of intersection of the back of the notch and the front of the notch of the same notch, for each flat section of the brush, is defined as the angle between the tangents of the two surfaces of the notch at the level of the line of intersection. cavity. Advantageously, for any flat section of the blade the incoming angle β is between 90 ° and 160 °, and even more preferably, between 90 ° and 120 °. The intersection of the notch front of a notch is hard with the surrounding surface of the brush or with the back of the notch of a second notch, defines a ridge edge and constitutes at any point of this intersection the apex of a protruding angle (a) which two sides define a notch. Preferably, the core is formed by the helical winding of two arms of a metal wire and the hairs are clamped between the coiled arms of the core. Preferably, the backing of the notch is flat * or concave. í DESCRIPTION OF THE INVENTION According to the invention, the brush includes one or several notches. Preferably, the notch (s) are obtained by cutting the brush. The height H of the notch front is defined for each planar section of the brush as the distance between the intersection of this notch front with the in-turn surface of the brush and the cavity line. h can go along the axis of the soul. The height H of the notch backing is defined for each planar section of the brush as the distance between the intersection of this notch backing with the wrapping surface of the brush and the cavity line. h may vary along the axis of the soul. The height h of the notch backing is defined for each flat section of the brush as the distance between the intersection of this notch backing with the wrapping surface of the brush and the cavity line. h can vary along the axis of the soul. Advantageously, it is provided that in the same notch the notch front has a height less than the height of the backrest of the notch. preferentially, the notch front has a height of less than 2/3 of the height of the backrest of the notch, and still more preferably 1/2 of the height of the notch backing. Each of the characteristics of this configuration (concavity of the surfaces, incoming angle ß and height of the surfaces) contributes to the formation of open notches, that is to say an access to the open and progressive cavity line, being the line of cavity the area most loaded with mascara, then on the notched front that can take care of the eyelash on the entire height of this front in order to offer a better extended-combed. The notch may be located in all or part of the length of the brush, preferably the two surfaces extend from one end of the brush to the other.

According to a variant of the invention, it can be envisaged that the cavity line does not extend over the entire length of the brush, for example providing that at least one end of the brush the cavity line stops before the end of the brush, either because the surfaces do not extend to this extreme, or because the same ones merge into a continuous surface. According to another variant of the invention, it can be provided that the notch (s) are helical in shape, that is to say the corresponding cavity line and ridge edge. each have the shape of a helix. 1 The longer hairs define the surface-wrapped of the brush: The brush can have a wrapping surface either: cylindrical, frustoconical, in the form of rgbi ba-lón, pyramidal, in the form of peanuts, etc ... It can be It consists of several sections of different wrapping surfaces, such as a cylindrical brush that ends at a frustoconical end. Thus, it can be envisaged that the brush is constituted by at least two successive sections of different characteristics: different surface-wrapped sections, sections comprising notches and sections that do not comprise them. The ridge edges may eventually be cut to be rounded.

"Shorter hairs of the cavity line are loaded more with mascara, so when the user applies the brush on the eyelash, she can, by rotating the brush between her fingers, to alternate the load of the mascara eyelash with a hairstyle and an effective spreading of the product, the user can also give a movement of movement to the brush along the flange, choosing to accentuate the load of the mascara tab or the hairstyle, according to the area of the brush that it applies on the flange. A brush of this type makes it possible to obtain a makeup which is at the same time loaded, regular, extended and curved (this brush is completely suitable for the makeup of eyelashes, also the invention also has as its object a makeup device comprising a mascara and a mascara applying, characterized in that it includes said brush. Preferably, the brush includes several close notches, determining two notches next to each other, by their contours, at least one crest region of varying width (the width of a crest zone is measured according to a direction perpendicular to the central axis). of the bulb). Furthermore, the bristles of the brushes according to the invention can be of any type: hairs of different heights, of different diameters or different sections and different materials, sharp end hairs, in the form of a fork or pinhead, or have experienced any kind of treatment known to the person skilled in the art. The invention consists, apart from the provisions set forth above, in a number of other provisions of which more explicitly will be discussed below with reference to examples of writing with reference to the accompanying drawings, but, which are not in any way restrictive Figure 1A is a perspective view of a ce -. { The invention relates to a single notch (radiated), Figure IB is an end view of the same brush, Figures 2 and 3 are perspective views of two variants of the embodiment of brushes according to the invention. are end views of two brush variants according to the invention, according to the central axis of these brushes Figures 6, 7 and 8 are perspective views of variants of brushes according to the invention of various wrapping surfaces. sectional view of a device for the make-up according to the invention Figure 10 is a perspective view of a variety of brushes according to the invention including a cylindrical section and a conical section. A brush according to the invention comprises a first section of notches and a second section comprising grooves. application of a cosmetic product, particularly for the application of mascara on the eyelashes, which comprise a core 102 that is represented in this figure although set is inside the elongated brush formed by i the helical winding of two arms of a metallic thread 103 that has been bent in U before the arms have been twisted. The core 102 is fixed by insertion at the end of a bar t. Hairs 104 are implanted radially on the arms of the wire 103. When the arms of the wire 103 are twisted, the hairs are tightened and held between the helical turns of the core 102. The axis of the core 102 can be confused with the axis of the suture. "Surround 101.1 of the brush II, as in the fi gures, but these two axes could be displaced The hairs 104 can be natural or synthetic fibers and eventually flocked, the brush 101 can include a mixture of different hairs types (different diameters, for- ¬ ¬ more sections). The surface of the brush casing 101.1 is a truncated cone of central axis II confused with the axis of the core 102 and including two ends that are flat sections of the brush: the vertex section 105.1 in the front side of the brush, and its 105.2 flat base on the back of the brush. The brush comprises a recess 106 constituted by 2 drying surfaces: the front of the notch 106.1 and the back of the notch 106.2 running from one end of the brush to the other. The surface 106.1 is straight and forms an angle a | protruding and constant throughout the extension of the brush with the surrounding surface of the brush. The two surfaces 106.1 and 106.2 form an incoming angle ß-120 ° with one another, constant from one end to the other of the brush. The surface 106.2 is convex. The entire surface of the brush (conical surface 101.1, facing notch 106.1 and backing of notch 106.2 is constituted by "generatrices that converge at a fixed point P, located on the central axis II of the brush. the two surfaces 106.1 and 106.2 define a cavity line, straight, 107 equally convergent on P. The intersection of the notched front 106.1 with the envelope surface of the brush 101.1 defines ridge edge, straight, 108.1 convergent on P. The backing of the notch 106.2 of the brush 101 shown in FIGS. 1A and IB is rounded, its radius is adjusted so that the backing of the notch 106.2 is tangent to the brush surface 101.1 of the brush, but according to a variant, it can be chosen that 106.2 and 101.1 are secant and define a second ridge edge.The front of the notch 106.1 has a height h and the back of the notch a height h, varying along the length of the web. flat of the brush, it is confirmed . { ma the ratio h less than 1/2 h. The notch 106 is obtained by cutting the brush 101, ie cutting the hairs 104 of this brush with a cutter. this notch 106 is located on the same side of the brush, it is therefore not cut by the core 102. The brush 111 shown in FIG. 10 differs from that shown in FIG. 1 by the fact that it comprises different sections, one YES of envelope surface 111.11 cylindrical, the other conical surface S2 111.12 conical, according to the brush described in figure 1, these two sections being joined by their bases of the same diameter. The notch front 116.1 and the notch back 116.2 extend over the two sections. Their respective heights h and H are constant throughout the cylindrical section SI then decreasing along the conical section S2. The angle β between the notch front 116.1 and the notch back 116.2 is constant along the entire length of the brush axis. The cavity line is constituted by two fragments of line: the fragment of line 117.1, in the cylindrical section, which is parallel to the axis of the core and the fragment of line 117.2, in the conic section, which converges at a point located on the axis of the soul. A hawthorn of this type makes it possible to obtain variations in texture -interesting. i The brush 201 shown in FIG. 2 is distinguished from that shown in FIGS. 1A and IB by the fact that it comprises 4 identical recesses. Each notch occupies an angular sector of 90 * of the brush surface. The crest edges of two successive notches are confused. The straight notch front 206.1 of a notch and the rounded notch back 206.2 of the preceding notch together define a notch 210 and a ridge line 208.1. The surface of the brush 201 includes 4 protruding notches, separated by four cavity lines 206, these notches deduced from each other by rotation of 90 * about the central axis of the brush II-II. The observer that is located at the end of the brush on the side of the bar apresia a succession of notches oriented to the right: in a same notch 210, the front of the straight notch 206.1 is located to the right of the back of the rounded notch 206.2. Thus, the pitch of the - brush is to the right. According to a variant of the invention, it is also possible to foresee that the passage is on the left. It is also possible to foresee that the brush already includes two successive sections: one with one step on the left and the other with a step on the right. Preferably, the pitch is the same throughout the entire length of the brush. i The brush 301 shown in FIG. 3 is distinguished from the brush of FIG. 2 by the fact that it comprises 3 notches 310 each occupying an angular sector of 120. The brushes shown in FIGS. 2 and 3 are notches (notches). ) next regular (next regular), ie the cone is divided into an integer number of angular sectors (identical number to the number of notches and notches), equal, each of these angular readers having 2 ridge edges or 2 cavity edge of two successive notches, the notches being deduced from each other by rotation of the brush about its central axis, however, it can be foreseen that the notches are irregular: unequal angular sections, features notches. For example, in FIG. 4, a brush 401 according to the invention is distinguished from that shown in FIG. 2 by the fact that 2 successive notches are not they are of the same depth or of the same angular width: at the level of each flat section of the brush, the depth of the notch is measured as the distance of the cavity line with the envelope surface. The angular anchura of a notch is the angle between the lines of ridges that delimit this notch. í The indentations are irregular: A notch 406.a of depth (variable along the axis of the web) of angular width da alternates with a notch 406b of depth db (variable along the axis of the web) of angular width db with: da > db d > db It can also be provided that the notches are spaced apart and not approximated, which is translated by the fact that - on the surface of the brush, uncut spaces or crest areas, of the envelope surface are left between two successive notches . This possibility is illustrated by FIG. 5 in which a brush 501 according to the invention is shown, including alternating zones 509 and notches 506. The brush 601 shown in FIG. 6 differs from that shown in FIG. 2 by the fact that it has a surface of parallel generatrices (point of convergence P located at infinity) and because the backs of notch 606.2 are flat. The cavity lines 606 are parallel to the generatrices of the brush. This brush can be obtained from a cylinder of cylindrical shape in which straight surfaces are cut out. The angle ß between the back of mu-, sca 606.2 and notch front 606.1 confirms: 90 ° < ß < , 120 *. In this figure, the heights h and H respectively of the surfaces 606.1 and 602.1 are constant throughout the extension of the brush. According to a variant of the invention, h and H can be modified along the central axis of the brush. The protruding and incoming angles ß are constant throughout the entire length of the brush. The brush 701 shown in FIG. 7 is separated from that shown in FIG. 2 by the fact that it has a surface-enveloping surface 701.1 which has the shape of a peanut. It comprises 3 more regular recesses 706. The notch fronts 706.1 are flat and of constant height h along the entire length of the central axis of the brush. The notch backings H, variable a - lß - length * - of the central axis of the brush confirms according to any straight section of the brush: H > h The angle ß between the notch backing 706.2 and the notch front 706.1 is constant along the axis of the web and confirms: 90 * < ß < 160 *. The brush 801 shown in FIG. 8 is distinguished from that shown in FIG. 2 by the fact that it has a wraparound surface having the shape of two cone trunks joined by their bases of identical diameter. It includes 4 recesses 806 proximate regulates. - * res, each constituted by a front of. notch 806.1 i flat and by a rounded 806.2 notch backing. The cavity line 8078 is a line parallel to the central axis of the brush. The angle ß between the notch backing 806.2 and the notch front 806.1 is constant along the axis of the web and confirms: 90 * <; ß < 160. The brush 1101 accordto the invention shown in FIG. 11 is distished from those shown in FIGS. 1 to 8 by the fact that it comprises two successive sections SI and S2: the entire length of the SI section The line has a cylindrical shape and is devoid of undercuts, along the section S2, the brush surface of the brush is cylindrical, with the same axis confused with the central axis of the brush and of the same diameter as the cylinder of the brush. In the entire extension of - € 2, regular notches 1106 which include straight cavity lines 1107 parallel to the central axis of the brush have been cut out and form regular notches 1110. The straight section s is located at the intersection of SI and S2 The cavity lines 1107 are fragments of straight lines which, as in the recesses 1106 and the notches 1110, are interrupted at the level of S. The device for the makeup of the eyes repre- sittin figure 9 comprises a cylindrical tank 920, which comprises a neck 924, threaded,, superimposed J by a sealing gasket 926 and filled with mascara 915. The reservoir 920 includes in its neck a drainer 921, the clamping being secured in the drainer position in the neck thanks to a flange 926 which cooperates with the projection separating the neck of the reservoir 920 proper. The drainer 921 is constituted in a known manner, in a flexible and elastic material. An applicator is intended to cooperate with the reservoir 920. This applicator is constituted by a gripping means 923 supporting the application member 930, comprising a rod 922 and a brush 901, identical to that shown in FIG. grip 923 has the shape of a cap u-na and includes a threading 923a which cooperates with the threading 924a of the tank neck. The sealed seal "Bel reservoir 920 is obtained by threading the gripping means 923 on the neck 924 of the reservoir provided with its seal 926. When the applicator member 930 is withdrawn from the reservoir, the brush loaded with mascara passes through the drainer 921. This drains the long hairs from the crest areas much more important than the short hairs (around the cavity line) of the notch.In the application on the flange, the notch takes the flange by the notch front, in particular by its ridge edge in the manner of a comb, separates and combs the pe of the flange, then the notch backrest handles the flange up to the cavity line carrying the base of the bristles of the flange (from mascara) that a second groove extends With respect to the known undercut brushes of the prior art, the brush according to the invention offers the advantage of allowing a take-charge by the notches of the hairstyle and the recurvamiento of the hairs of the pesTaña, which is more effective than by means of brushes with the rounded concave notches. In addition, the openness of the notches allows better access to the product stored around the cavity line.

It is noted that in relation to this date, the The best method known to the applicant to carry out said invention is the conventional method for manufactures the objects to which it refers.

Having described the invention as above, the content of the following is claimed as property;

Claims (29)

1. Brush comprising an elongated core that defines the central axis of the brush, hairs implanted radially in this core, the ends of these hairs defining the outer surface of this brush and defining the ends of the longer hairs its surface of shell, including this Brush at least one notch formed by at least two drying surfaces, a first surface called notch backing, of variable height H along the central axis, and a second surface called notched front, of variable height h along of the axis of the core, which defines by its intersection a cavity line, the intersection of the notch front of a notch, with the wrapping surface of the brush or with the notch backing of a second notch defining edge to edge. crest and that constitutes at all points of this intersection the vertex of a projecting angle (oC), whose two sides define a notch, characterized in that the two surfaces tricas and form a concave angle (ß) at any point between its "fjuQ 1802 and intersection.

2. Brush according to claim 1, characterized in that the core is formed by the helical winding of two arms of a wire and the hairs are held between the coiled arms of the core.

3. Brush according to any one of the preceding claims, characterized in that it is obtained by trimming the brush.

4. Brush according to any one of the preceding claims, characterized in that the two surfaces extend from one end of the brush to the other.

3- Brush according to any one of the preceding claims, characterized in that the angle of intersection of the two surfaces of the notch is between 903 and 160Q.

6. Brush according to any one of the preceding claims, characterized in that the backrest of the notch is flat and convex.

7. A brush according to any one of the preceding claims, characterized in that the notch front is flat or concave.

8. Brush according to any one of the preceding claims, characterized in that in the same notch the height h of the notch front is less than I the height h of the notch backing.

9. Brush according to the preceding claim, characterized in that in the same notch the height h of the notch front is less than 2/3 of the height H of the notch backing.

10. Brush according to any one of the preceding claims, characterized in that the wrapping surface of the brush is a truncated cone.

ll. Brush according to any one of the preceding claims, characterized in that at least one of the notch backing and the notch front is straight.

12. Brush according to any one of the preceding claims, characterized in that the protruding angle ("is constant in any extension of the brush.

13. Brush according to any one of the preceding claims, characterized in that the incoming angle (ß) is constant from one end of the brush to the other. 'i

14. Brush according to any one of the preceding claims, characterized in that the assembly of the external surface of the brush is constituted by generatrices converging at a point.

15. Brush according to any one of the preceding claims-ßug, characterized in that the cavity line is straight.

16. Brush according to the preceding claim, characterized in that the cavity line converges therein (P) as the generatrices of the brush surface.

17. Brush according to any one of the preceding claims, characterized in that the ridge edge is straight.

18. Brush according to the preceding claim, characterized in that the crest edge converges at the same point (P) as the generatrices of the brush surface.

19. Brush according to any one of the preceding claims, characterized in that the notch backing is rounded and its radius is adjusted so that this surface is tangent to the surface, envelope of the brush.

20. Brush according to any one of the preceding claims, characterized in that it comprises several notches.

21. Brush according to any one of the preceding claims, characterized in that it has neighboring notches.

22. Brush according to any one of the preceding claims, characterized in that it has regular notches.

23. Brush according to any one of the preceding claims, characterized in that its envelope surface has parallel generatrices.

24. Brush according to any one of the preceding claims, characterized in that the cavity line is a line parallel to the central axis of the brush.

25. Brush according to any one of the preceding claims, characterized in that the cavity line extends over a part only of the extension of the brush.

26. Brush according to any one of the preceding claims, characterized in that the axis of the core is confused with the axis of the wrapping surface of the brush.

27. Brush according to any one of the preceding claims, characterized in that the passage defined by the notches is the same throughout the extension of the brush. t

28. Brush according to any one of claims 1 to 10, 12 to 14, 19 to 23 and 25 to 27, characterized in that the fact that the notch or notches are helical in shape.

29. Make-up device comprising a mascara deposit, a wringer and a mascara applicator, characterized in that it includes a brush according to any one of the preceding claims for obtaining a loaded and / or regular and / or extended and / or curved makeup of the eyelashes.