JP2005021215A - Brush for applying liquid cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brush for applying a liquid cosmetic that radially spreads the tip, uniformly transmits the pressure of the brush to the nails and is easy to use. <P>SOLUTION: Circular arc extended portions 9 extended in the extending direction of a bristle tuft 4 are provided oppositely to the elongated periphery of the mouth of a bristle transplanting hole 3. The mouth portion of the bristle tuft 4 transplanted to the bristle transplantation hole 3 has a nearly square section and the ratio of the long side to the short side is 3/2 or higher. The ratio of the radius of the circular arc of the extended portions 9 to the length of the long edge portion 8b is 1/2 to 5/6. Since the extended portion is formed into a circular arc, the tip of the brush radially spreads and uniformly transmits the pressure to the nails in the action of applying a cosmetic. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
[Technical field to which the invention belongs]
In the present invention, for example, a brush shaft base is fixed to the inner end of a cap containing a nail polish solution, and a hair bundle (a bundle of hair materials) is planted in a flock hole provided at the tip of the brush shaft. The present invention relates to a liquid cosmetic application brush, and more particularly to a liquid cosmetic application flat brush characterized by the shape of the mouth of a flock hole in which the hair bundle is planted in a flat state.
[0002]
[Prior art]
Conventional brushes for applying liquid cosmetics are generally those in which the mouth of the flock hole for flocking the hair bundle provided at the tip of the brush shaft is positioned on a two-dimensional plane cut in a straight line (patent) Reference 1).
[0003]
Patent Document 1
Japanese Patent Application Laid-Open No. 07-303518 (see FIGS. 1, 2, and 3).
[0004]
[Problems to be solved by the invention]
The above-mentioned conventional nail polish application brush, which is a brush for applying liquid cosmetics, is often applied by pressing the hair material abdomen of the tip of the brush against the fingernail to be applied and radially spreading the tip of the brush. Since the mouth consisting of the long edge and the short edge of the mouth is located on a two-dimensional plane, the hair material on both ends in the part along the long edge of the mouth is strongly at both ends of the flock hole. The bristle of this part is stronger than that of the central bristle, and even if the bristle is pressed against the fingernail at the time of application, the brush tip does not spread radially, and the pen pressure is averaged. There was a problem that it was difficult to use because it was not transmitted to the fingernail. In addition, if the brush tip is difficult to spread radially as described above, the number of times the nail polish is applied to the fingernail increases, and the liquid cosmetics are largely overlapped, so that a clean application operation cannot be performed.
[0005]
An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide a liquid cosmetic application brush that solves this problem.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, for example, the liquid cosmetic application brush of the present invention according to claim 1 has a hair bundle bundled in a flocked hole provided at the tip of the brush shaft, and has an elongated perimeter of the flocked hole. Each extending portion extending in a direction in which the hair bundle extends is provided so that the center portion is longer than both end portions so as to face each edge portion of the mouth.
[0007]
In addition to the configuration of the invention described in claim 1, the brush for applying a liquid cosmetic composition of the present invention described in claim 2 has an arcuate extension edge.
[0008]
Further, in the present invention described in claim 3, in addition to the configuration of the invention described in claim 2, the ratio of the length of the mouth portion of the hair bundle planted in the tuft hole to the short side of the long side is 3 / It is characterized by being 2 or more.
[0009]
In addition to the configuration of the invention described in claim 3, the present invention described in claim 4 has a length ratio between the radius of the arc of the extending portion and the long edge portion of 1/2 to 5/6. It is characterized by that.
[0010]
Moreover, in addition to the structure of the invention in any one of Claims 1-4, this invention of Claim 5 is a brush shaft base part in the cap inner side edge part of the container which accommodated liquid cosmetics. And is accommodated in the container when the cap is closed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment in which the present invention is applied to a brush for applying a nail polish will be described in detail with reference to FIGS. 1 to 6 of the accompanying drawings. Here, FIG. 1 is a partially longitudinal front view, FIG. 2 is a partially longitudinal side view, FIG. 3 is a partially longitudinal front view of a nail polish applicator, and FIG. 4 is an enlarged perspective view of the tip of a writing shaft in a state where a hair bundle is implanted. 5 is an enlarged front view of the main part, and FIG.
[0012]
As shown in FIG. 1 to FIG. 4, the application brush 1 has a hair bundle 4 implanted in a flock hole 3 provided at the tip of a brush shaft 2, and is a container 5 containing a nail polish a which is a liquid cosmetic. The base portion 7 of the brush shaft 2 is fixed to the inner end portion of the cap portion 6, and is configured to be stored in the container 5 and immersed in the nail polish liquid a when the cap 6 is closed.
[0013]
As shown in FIGS. 1, 2, and 4, the coating brush 1 is composed of two opposed short edges 8 a and 2 of a substantially square mouth 8 that is an elongated shape of a flock hole 3 that has a flat shape. Among the long edge portions 8b, each long edge portion 8b is provided with an extending portion 9 extending in the direction in which the hair bundle 4 extends so as to gradually become longer from both ends toward the center.
[0014]
As shown in FIGS. 4 to 6, the cross-sectional shape of the mouth 8 portion of the hair bundle 4 planted in the tuft hole 3 has a side length along the long edge portion 8 b of 1.8 mm, and a short edge portion. The length of the side along 8a is 1.2 mm. That is, the length ratio of the side corresponding to the long edge 8b and the side corresponding to the short edge 8a is 3/2.
[0015]
Further, if the ratio of the lengths of the respective sides is smaller than 3/2, the brush tip is difficult to open at the time of the application work, and it is difficult to use as a brush for applying liquid cosmetics.
[0016]
As shown in FIG. 5, the extending portion 9 is formed in an arc shape, and the radius of this arc is 2.5 mm and the long edge portion 8b is 4.0 mm. That is, the length ratio between the radius of the arc and the long edge 8b is 6/5. And the arc-shaped extension part 9 formed in this way will be in the state extended about 1 mm longer than both ends in the center part of the elongate edge part 8b.
[0017]
Further, in order to appropriately open the brush tip during the application work, the length ratio between the arc radius of the extension portion 9 and the long edge portion 8b is set to a range of 1/2 to 5/6. It is preferable and cannot be formed smaller than 1/2 (both ends of the arc do not reach the end of the long edge), and if it is larger than 5/6, the degree of curvature of the arc is too large and the brush tip The opening of is too small.
[0018]
In the liquid cosmetic application brush 1 in which the hair bundle 4 is planted in the tuft hole 3 configured as described above, each extending portion 9 has an arc shape, so that the arc edge of the extending portion 9 is applied at the time of application. The bristle material is supported, and the firmness of the bristle material is gradually increased as it approaches the center side, and the overall average stiffness is obtained.
[0019]
In use, the liquid cosmetic application brush 1 removes the cap 6 from the container 5, removes the cap 6 together with the cap 6, and applies the nail polish a to the fingernail. When applied so as to be pressed, the hair material of each part along the extension part 9 of the flock hole has the same firmness, so the brush tip spreads radially and the pen pressure is transmitted to the fingernail on average and used. Cheap. When the brush tip spreads radially as described above, the number of times the nail polish is applied to the fingernail may be minimized, and the liquid cosmetic material is less likely to be overlapped, and a clean application operation can be performed.
[0020]
In addition, this invention is not limited to the said embodiment at all, For example, the shape of the extension part 9 is not circular arc shape, but is linear toward the center part side from the both ends side of the elongate edge part 8b. If the hair bundle extends in the direction in which the hair bundle extends so as to gradually become longer from both end sides toward the center side, such as one having an inclined edge portion, it may be changed to another shape. Further, the liquid cosmetic to be applied may be a cosmetic different from the nail polish.
[0021]
【The invention's effect】
As described above, according to the first aspect of the present invention, the length of the flock hole is gradually increased from both ends toward the center so as to face the edge of the mouth having an elongated periphery. In addition, since each extending portion extending in the direction in which the hair bundle extends is provided, when the hair bundle abdomen is applied so as to be pressed against the fingernail that is the application target, each portion of hair along the extending portion of the follicle hole is applied. Since the strength of the material is equal, the brush tip spreads radially, and the pen pressure is transmitted to the fingernail on average, which is easy to use.
[0022]
Moreover, according to this invention of Claim 2, in addition to the effect of the invention of Claim 1, since the extension part was formed in circular arc shape, in the application | coating operation | movement of cosmetics, a brush-tip is ensured. As it spreads radially, the pen pressure is transmitted to the fingernail on average, making it easier to use.
[0023]
Moreover, according to this invention of Claim 3, in addition to the effect of the invention of Claim 2, the cross-sectional shape of the said mouth part of the hair | bristle bundle planted by the flocking hole is the said elongate edge part. The length ratio between the long side corresponding to the short edge and the short side corresponding to the short edge portion is 3/2 or more, so that the brush tip spreads radially and more easily applied in the cosmetic application operation. There is an effect.
[0024]
Moreover, according to this invention of Claim 4, in addition to the effect of the invention of Claim 3, the length ratio of the radius of the circular arc of an extension part and a long edge part is 1 / 2- Since it was set to 5/6, there is an effect that the curvature of the arc edge is suitable for obtaining an appropriate spread of the brush tip in the application operation.
[0025]
Further, according to the present invention of claim 5, since the cap is accommodated in the container when the cap is closed, the liquid cosmetic can be applied as it is when the cap is removed and pulled out. There is an effect.
[Brief description of the drawings]
FIG. 1 is a partial longitudinal front view.
FIG. 2 is a partial longitudinal side view.
FIG. 3 is a partial longitudinal sectional front view of a nail polish applicator.
FIG. 4 is an enlarged perspective view of the tip of a brush shaft in a state where a hair bundle is implanted.
FIG. 5 is an enlarged front view of the main part.
6 is a cross-sectional view taken along line AA in FIG. 5;
a nail polish 1 application brush 2 brush shaft 3 flocking hole 4 hair bundle 5 container 6 cap 7 base 8 mouth 8a short edge 8b long edge 9 extension

Claims (5)

A brush for applying liquid cosmetics in which a hair bundle is implanted in a flock hole provided at the tip of the brush shaft, the center part of which is opposed to the edge of the mouth having a slender perimeter of the flock hole. A brush for applying liquid cosmetics, characterized in that each of the extending portions extends in the direction in which the hair bundle extends so as to be long. 2. The brush for applying a liquid cosmetic according to claim 1, wherein the extending edge of the extending portion has an arc shape. 2. The liquid cosmetic application brush according to claim 1, wherein a length ratio of a long side to a short side of the mouth portion of the hair bundle planted in the flocked hole is 3/2 or more. 4. The liquid cosmetic application brush according to claim 3, wherein the length ratio between the radius of the arc of the extending portion and the long edge portion is set to 1/2 to 5/6. The brush shaft base portion is fixed to the inner end portion of the cap of the container containing the liquid cosmetic, and is accommodated in the container when the cap is closed. The brush for applying liquid cosmetics according to any one of the above.

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