BRUSH FOR COSMETIC PRODUCTS

Abstract

Brush for cosmetic products made of plastic material of the type apt to engage with an applicator rod including a central core having a substantially cylindrical shape carrying at the end a dome-shaped radiussed appendix and of the combination of various series of teeth mutually equidistant in a longitudinal direction, characterised in that the teeth have a grain-shaped section, which furthermore has two opposite edge lines in correspondence of the extreme points of the major axis.

Claims

1) Brush for cosmetic products made of plastic material of the type apt to engage with an applicator rod consisting of a central core having a substantially cylindrical shape carrying at the end a dome-shaped radiussed appendix and of the combination of various series of teeth mutually equidistant in a longitudinal direction, characterised in that said teeth have a grain-shaped section, which furthermore has two opposite edge lines in correspondence of the extreme points of the major axis.

2) Brush for cosmetic products as in claim 1) characterised in that said grain-shaped section consists of the intersection of two arches of identical radius and width, the chord subtended between the ends of each arc always being longer than the maximum distance perpendicular to said chord detectable between two opposite points on the two arcs.

3) Brush for cosmetic products as in claim 1) characterised in that said series of teeth vary overall from 1 to 12.

4) Brush for cosmetic products as in claim 3) characterised in that said series are arranged perfectly aligned.

5) Brush for cosmetic products as in claim 3) characterised in that said series are arranged in a mutually offset position in a vertical direction.

6) Brush for cosmetic products as in claim 1) characterised in that the vertical axis of the teeth which make up said series of teeth is normal to the cylindrical surface of the core.

7) Brush for cosmetic products as in claim 1) characterised in that the chord between the intersection points of the arcs is oriented perpendicularly to the longitudinal axis of the core.

8) Brush for cosmetic products as in claim 1) characterised in that the upper surface of said tooth is radiussed.

9) Brush for cosmetic products as in claim 1) characterised in that it is furthermore provided a series of teeth in a radial pattern on said radiussed dome.

10) Brush for cosmetic products as in claim 1) characterised in that the ratio between the diameters of said applicator rod and said central core ranges between 1 and 3.

11) Brush for cosmetic products as in claim 10) characterised in that the ratio between the diameters of said applicator rod and said central core ranges between 1.3 and 2.3.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The brush will be now described with reference to the figures intended to illustrate the preferred solutions, which shall however be considered as exemplary, and not reductive, of the inventive scope of the invention, wherein:

[0009] FIG. 1 is a front view of a preferred embodiment of the brush according to the invention;

[0010] FIG. 2 is a top view of a preferred embodiment of the brush according to the invention;

[0011] FIG. 3 is a perspective view of a preferred embodiment of the invention;

[0012] FIG. 4 is the side view of a tooth of the brush of FIG. 1; and

[0013] FIG. 5 is a top view of the tooth of FIG. 4.

DESCRIPTION OF EXAMPLE EMBODIMENTS

[0014] The brush according to the invention is composed of a central core 1 having a substantially cylindrical shape, wherein an engagement zone 1a with a rod (not shown) of an applicator body, having a smaller diameter, to guarantee the correct engagement of the brush body to the stem itself, a central zone 1b of the properly said brush and a top surface 1c, consisting of a radiussed dome are present.

[0015] The entire area above said engagement zone 1a with a rod is covered by several series of teeth 2.

[0016] In correspondence of the central zone 1b, the aforesaid teeth are equidistant, both longitudinally and latitudinally, to form a matrix of teeth 2 with a defined and ordered geometry. Likewise, in correspondence of the dome 1c, they are arranged according to a radiussed symmetry to identify the directions protruding from the beams.

[0017] Each tooth 2 consists of a conical element, having a grain-shaped section, which also has two opposed edge lines in correspondence of the end points of the major axis.

[0018] In particular, the tooth 2 is composed of two identical portions 2a coupled, even if they do not arise from the base of a known regular figure, each having identical arch of radius and width. Between the extremities of each arch there is also a chord which is greater than the maximum distance perpendicular to the chord, which can be identified between two opposite points on the two arches.

[0019] In this way, a particular geometry is created, wherein two substantially flat lateral ridges 2b with respect to the coupling axis are evident, to form an invitation surface for the correct insertion of the aforesaid tooth 2 between two eyelashes.

[0020] In order that the tooth 2 of the brush according to the invention can obtain even more reliable performances, it is preferred for the upper surface 2c of said tooth 2 to be radiussed.

[0021] Furthermore, it is advisable that the vertical axis of the teeth 2 composing each of said series of teeth have a perpendicular conformation with respect to the cylindrical surface of the core 1 and that the subtended chord between the intersection points of the arches is oriented perpendicularly to the longitudinal axis of the core.

[0022] Finally, it has been found thatin order to optimize the collection and homogeneous and rapid application of the cosmetic productit is necessary that the ratio between the diameter of said applicator rod and the diameter of said central core is between 1 and 3, and more preferably between 1.3 and 2.3.

[0023] From a morphological point of view, it is also necessary to highlight the fact thatin order to obtain a longer stroke for the brushand thus to ensure a perfect coverage of the edge in a single passthe applicant has tended to force the limit, creating a mould with twelve flower-shaped sectors.

[0024] Then, it has been created a tooth structure which identifies a bidirectional slant, recognizable in all the possible movement directions of the applicator, which allows a single applicator to guarantee correct movement both for left-handed and for right-handed users: therefore, it is not necessary to prepare suitable applicators.

[0025] In operation, the user operates in a conventional manner, however, having teeth which are inserted precisely between two eyelashes at the moment in which the applicator approaches the eye. The toothappropriately shaped in the manner now disclosedcleaves the two flaked lashes, separating them. Subsequentlywith the rotation of the applicatorit will expand the distances on the one hand and it will deposit the cosmetic substance on the other. In this way, the user is required to use a single pass to ensure the correct and complete deposition, quickly and with considerable savings in terms of used material. The head with the teeth in a radiussed arrangement allow them to reach the innermost points of the eye.

[0026] Therefore, it has been possible to observe that the morphology allows the eyelashes to slide into the mascara reservoir, making the passage more slippery and comfortable than it is today.

[0027] In this way, a universal brush has also been obtained, since the choice of the dimensional ratios, and in particular of the length of the tooth, allows to obtain that the proportions between free and penetrable volume in the brush are relating to the density of the eyelashes along the eyelid, the density of eyelashes not being a factor any longer.

[0028] We now want to highlight the fact that the alignment of the teeth along the central core can be widely subject to modifications, without departing from the scope of the invention, as defined by the attached claims.