JPH06306U - Liquid makeup brush - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a liquid cosmetic brush which has no bulge in the outer peripheral region of the brush shaft tip and has a good appearance. [Structure] A concave hole portion 2 for inserting a brush is formed in a brush shaft tip portion 1, and a folded portion 5 of a brush hair 4 folded in two in the concave hole portion 2 is formed.
Is press-fitted and fixed by a U-shaped clasp 6. A concave portion 3 is formed in the concave hole portion 2 for inserting the brush, and the bulging brush folding portion 5 is fitted into the concave portion 3 so that the tip of the brush shaft does not bulge outward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid makeup brush that applies liquid cosmetics such as enamel for makeup of hands and feet, and more particularly to the structure of a brush shaft tip portion in which a brush is planted.

[0002]

[Prior art]

 FIG. 5 is a cross-sectional view of the tip of the brush shaft of a conventional liquid cosmetic flat brush, in which the folded portion 15 of the brush hair 14 folded in two at the tip of the brush shaft 11 is bound by a U-shaped clasp 16. Press-fitted and fixed. FIG. 6 is a VI-VI cross section of FIG. FIG. 7 is a perspective view of the tip of the brush shaft of the same flat brush.

[0003]

[Problems to be solved by the device]

The folded portion 15 of the brush 14 which is forcibly press-fitted into the recessed portion 12 has a width W in the direction perpendicular to the extending direction of the clasp 16 that is larger than that of the portion other than the folded portion. When the bristle 14 is press-fitted and fixed in the tip recessed hole of the brush shaft 11, the brush folding part 15 tries to expand the recessed part 12 from the inside. Since the concave hole forming area at the tip of the brush shaft is thin, the bulging portion 18 as shown by the reference numerals in FIGS. 5 to 7 is formed in the flat area of the brush tip, and the appearance is not good. was there. The reference numeral W ₁ indicates the width of the minor axis of the brush shaft before press-fitting the brush, and the reference numeral W ₂ indicates the width of the brush shaft after the press-fitting and fixing of the brush shaft.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a liquid cosmetic brush which has no bulge in the outer peripheral region of the tip of the brush shaft and has a good appearance. .

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a concave hole for brush insertion is formed at the tip of the brush shaft, and the folded part of the brush folded in two is press-fitted and fixed in the concave hole by a U-shaped clasp. In the liquid makeup brush, a concave portion corresponding to the folded portion of the brush was formed in the concave portion for inserting the brush.

[0006]

[Action]

 The bulging portion of the folded portion of the brush is stored and held in the recessed hole formed in the recessed portion for inserting the brush, and when the brush is pressed in, the wall of the recessed hole forming wall is unexpectedly expanded. The force of does not act.

[0007]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a liquid makeup brush according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II in FIG. This liquid cosmetic brush is generally called a flat brush whose brush axis is formed in an elliptical cross section. The brush tip 1 has a concave hole 2 with an elliptical cross section that follows the outer shape of the brush axis. Is bored, and the inner side of the recessed hole portion 2 is bored in the tapered hole 2a. A concave portion 3 corresponding to the folded portion of the brush is formed in a portion between the straight line portion on the inlet side of the concave hole portion 2 and the tapered hole. That is, in the middle of the recessed hole portion 2, a recessed portion 3 having a size capable of accommodating and holding the brush folding portion 5 is formed. Then, the folded-back portion 5 of the brush 4 is press-fitted into the recessed hole portion 2 by a U-shaped clasp 6, and the tip of the clasp 6 is pierced into the bottom surface of the depressed hole portion, whereby the brush-folded portion 5 is recessed into the concave hole portion 2. It is fixed to. When the brush is press-fitted and fixed in the recessed hole portion 2 at the tip of the brush shaft, the brush folding back portion 5 fits into the recessed portion 3, so that the brush folding back portion 5 strongly pushes the recessed hole forming wall outwardly. Never. Therefore, unlike the conventional case, there is no inconvenience that the outer peripheral region of the tip of the brush shaft bulges outward, and the appearance is kept beautiful.

The brush shaft main body is formed by injection molding of synthetic resin, and a core having a bulge portion for molding the recess 3 is inserted into a molding die, and the core is forcibly removed after the molding. Thus, the recessed hole portion 2 having the recessed portion 3 which is an undercut portion can be formed.

3 and 4 show another embodiment of the present invention. FIG. 3 is a vertical cross-sectional view of the tip of the brush shaft, which is a main part, and FIG. 4 is a IV-IV view of FIG. . In this embodiment, the brush shaft 1 is formed in a circular cross section, which is generally called a round brush, and has a structure in which a concave portion 3 is provided around the inner peripheral surface of the concave hole portion 2. Then, the folded portion of the brush is fitted into the concave portion 3, and the bulge portion is not formed in the outer peripheral area of the tip portion of the brush shaft.

[0010]

[Effect of device]

 As is clear from the above description, according to the liquid cosmetic brush according to the present invention, the bulging portion due to the bulging portion formed in the folded portion of the brush appears at the outer periphery of the tip of the brush shaft. Since it is smooth, a liquid makeup brush with a good appearance can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a liquid makeup brush according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a vertical cross-sectional view of a brush shaft tip portion of a liquid cosmetic brush according to another embodiment of the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a vertical cross-sectional view of a conventional brush tip.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a perspective view of the tip of the writing brush shaft.

[Explanation of symbols]

 1 Brush shaft tip 2 Recessed hole 3 Recess 4 Brush that is folded in half 5 Brush folded part 6 U-shaped clasp

Claims (1)

[Scope of utility model registration request] 1. A liquid cosmetic in which a concave hole for brush insertion is formed at the tip of the brush shaft, and the folded back portion of the brush folded in two is press-fitted and fixed by a U-shaped clasp. In the brush,
A liquid makeup brush characterized in that a concave portion corresponding to a folded portion of the brush is formed in the concave portion for inserting the brush.