JPH0446685Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an extrusion-type applicator brush for liquid materials. This invention relates to an extrusion-type coating brush that can be used by extruding liquid internal substances from between the brushes by applying extrusion pressure.

[Conventional technology and its problems]

Previously, brushes with hairs embedded in a metal shaft were used as tools for applying viscous liquids such as mascara, but these brushes were expensive, so Brush substitutes are now being used, which are made of plastic or metal rods with many fine grooves carved into them. Such brushes or brush substitutes are inserted into and removed from a cylindrical container containing cosmetics or other liquid materials, and are used to deposit the liquid material and apply it to the desired area. It is difficult to skillfully adjust the amount of liquid that adheres to the brush part. For this reason, mascara containers and the like are equipped with a squeezing member at the mouth to automatically squeeze out the excess amount when the brush is pulled out, but this complicates the structure of the container and makes it expensive to manufacture. In addition to cleaning, there is also the problem of dirt from the scrubbing member re-adhering to the shaft of the brush.To avoid this, it is necessary to provide a separate member to wipe the scrubbing member, making the structure even more complex. However, there is a problem in that it increases the production cost.

[Purpose of invention]

Therefore, the present invention solves these problems and difficulties, makes it possible to easily adjust the amount of liquid matter adhering to the brush part without relying on conventional squeezing members or wiping members, and moreover, with a small number of parts. To provide a liquid application brush that can be manufactured at low cost and is easy to use.

Another purpose of the present invention is that the container part containing a liquid such as cosmetics and the brush part are continuous, and when a pressing force is applied to the container part, the liquid material is pushed out from inside the brush part. The purpose is to provide an application brush.

[Summary of the idea]

In order to achieve the above object, the present invention includes a hollow pressure supply section that contains a liquid, and a hollow brush section that is continuous with this pressure supply section, and has a large number of fine protrusions on the outer periphery of this brush section. A brush is formed in an annular or spiral shape, and a large number of fine extrusion holes communicating with the hollow portion are formed in the valleys between the micro-projections to constitute an extrusion-type application brush.

When in use, if you apply a moderate amount of pressure to the contents of the pressure supply part, an appropriate amount of the contents will ooze out between the brushes, so you can just use it for application, or remove the brush from the container like in the past. There is no need to pull out the mascara or repeatedly insert and remove the brush into the container for repeated applications.For example, the required amount of mascara can be continuously oozed out while the brush is applied to the eyelashes, making it extremely convenient to use. be.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a partially cutaway front view of a cap 1 and main body 2 of the push-out application brush of the present invention, and Fig. 2 is a side view of a partially cut away main body 2, excluding the cap. It is.

Cap 1 has a cylindrical shape with a closed upper end;
It is removably attached to the shoulder 2a of the main body 2 in a tight fit.

The main body 2 of the push-out applicator brush of the present invention has a second
As is clear from the figure, one part is formed as the pressure supply part 3 and the other part is formed as the brush part 7. Preferably, both the pressure supply section 3 and the brush section 7 are injection molded as one continuous piece of plastic. The pressure supply part 3, which constitutes the lower half of the main body 2 in FIG. After filling, the lower end is fused 4 and closed. When the pressure supply part 3 is pressed with a finger, the cosmetics and other liquid materials inside are sent out to the brush part 7 forming the upper half of the main body 2 in FIG.
Instead of the pressure supply section 3 that is pressed by a finger, the pressure supply section may be configured as a relatively rigid cylindrical section with a knock-type or rotary mechanism on the lower end 4 for applying pump pressure to the liquid.

The brush portion 7 is formed continuously to the through hole 5 which continues to the inner cavity of the pressure supply portion 3 . The details of the brush part 7 are as follows.
The third part shows an enlarged view of the circled area at the top of the figure.
4, which shows a cross-section corresponding to the - line in FIG. 3. That is, the brush portion 7 has several vertical ribs 9 arranged radially at intervals around a central hole 8 that is continuous with the through hole 5, and a large number of minute protrusions 10 arranged annularly at small intervals around the vertical ribs 9. The extruded holes 11 are formed at the intersections of the radial spacing of the vertical ribs 9 and the small circumferential spacing of the protrusions 10. Preferably, the interval between adjacent vertical ribs 9 constituting the extruded hole 11 is formed so as to taper outward at an angle of about 30° when viewed from above. The fine protrusions 10 may be arranged side by side in an annular shape or may be formed as spiral protrusions, and in any case, the fine pointed protrusions function as bristles of the brush.

As can be seen from FIG. 2, the lower end (or inner end) of the vertical rib 9 is fixed and stabilized to the inner surface of the cylindrical wall 6 surrounding the upper end of the through hole 5, and the upper end (or outer end) of the vertical rib 9 is connected to the circular top part 12 which closes the brush part.

As can be seen from FIG. 4, the vertical ribs 9 are formed to be relatively thick, so that the thickness of the minute protrusions 10 (the thickness between the peaks and valleys) is about the same as that of the pressure supply part 3. Even if the brush part 7 is thin, it gives stiffness to the brush part 7 and facilitates the application operation. Furthermore, the shape in which the intervals between the vertical ribs narrow outward gives momentum to the liquid cosmetic extruded from the extrusion hole 11, and prevents the liquid cosmetic from remaining in the valleys of the fine protrusions 10. It functions to easily reach the tip of the protrusion so that it can be applied.

The extrusion-type applicator brush of the present invention covers the cap 1 in a tight fit as shown in Fig. 1 when not in use.
Prevent the internal cosmetics and other liquids from coming into direct contact with the outside air. When coating is to be performed, the cap 1 is removed and the brush portion 7 is brought close to or in contact with the area to be coated, for example, pine hair. In this state, if an appropriate pressing force is applied to the pressure supply part 3, the liquid will pass through the through hole 5 and the center hole 8 to the fine protrusion 1.
An appropriate amount is ejected from the extrusion hole 11 in the valley of 0 and the protrusion 1
0, so you can immediately apply it to the area to be coated. Even when the amount of adhesion to the protrusion 10 is small, the required amount of liquid is replenished to the brush part 7 by simply increasing the pressing force of the pressure supply part 3 without changing the posture of the brush part 7, so that the application operation is easy. It can be continued without interruption, and the intermittent action of removing the brush from the pine hair, inserting it into the cosmetic container, applying the liquid, then pulling the brush out of the container and applying it to the pine hair again is not necessary according to the present invention. If the cap 1 is applied immediately after the application is completed, drying of the contents of the main body 2 can be effectively prevented.

[Effect of idea]

According to the present invention, the brush part is provided integrally and continuously with the pressure supply part, and the amount of liquid matter adhering to the brush can be adjusted simply by adjusting the pressing force of the pressure supply part, so it is possible to adjust the amount of liquid matter adhering to the brush, unlike conventional methods. Scrape the brush,
This has the effect of providing an easy-to-use applicator brush with a small number of parts at low cost without requiring an attached member such as a wiping member for wiping the scrubbing member.

Furthermore, according to the present invention, since the brush part is directly connected to the pressure supply part, which is a liquid container, and has an integral structure, the application operation can be performed simply and quickly in succession, and the application can be done in a short time. It has the effect of making the user feel comfortable with the stool.

Furthermore, with conventional mascara containers, the mouth of the container is left open during makeup after the applicator brush is pulled out, which has the disadvantage that the contents tend to dry out. As long as the material remains inside the pressure supply section and the brush section, it will not come into direct contact with the outside air, which has the effect of making it difficult for the remaining liquid contents to dry out.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of the extrusion-type application brush according to the present invention, and FIG. 2 is a side view, partially cut away, of the main body of the extrusion-type application brush of the present invention excluding the cap. FIG. 3 is a partially sectional view showing an enlarged portion of the circled portion at the upper end of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line shown in FIG. 3. Main code, 1...Cap, 2...Main body, 3...
...Pressure supply part, 7...Brush part, 8...Center hole, 9...
...Vertical rib, 10... Fine protrusion, 11... Extrusion hole, 12... Round top.

Claims (1)

[Claims for Utility Model Registration] 1. A pressure supply section that contains a liquid substance, and several vertical ribs provided at radial intervals around a central hole that is continuous with the pressure supply section, and the area around the vertical ribs. A large number of annular or spiral microprotrusions are formed at small intervals in the longitudinal direction, and liquid extrusion holes are formed at the intersections of the radial intervals between the longitudinal ribs and the small longitudinal intervals between the microprotrusions. An extruded application brush consisting of a brush part. 2. The push-out applicator brush according to claim 1, wherein the liquid material is a cosmetic such as mascara. 3. The extrusion type applicator brush according to claim 1 or 2, wherein the pressure supply part is a part made of an elastic thin-walled material and can be pressed with a finger. 4. The extrusion-type applicator brush according to claim 1 or 2, wherein the pressure supply section is equipped with a knock-type mechanism or a rotation mechanism that pressurizes the built-in liquid material. 5. The push-out applicator brush according to claim 1 or 2, wherein the radial spacing between the longitudinal ribs is tapered outward. 6. The push-out application brush according to claim 3, 4 or 5, further comprising a cap that is removably attached to the brush portion.