JP2017123919A - Liquid applicator - Google Patents

Abstract

The present invention provides a liquid applicator that can apply a large amount of liquid to a brush. A liquid applicator according to the present invention includes a container having an opening and containing a liquid, and an inner plug attached to the opening of the container and formed in a cylindrical shape so as to communicate with the internal space of the container. a cap that removably closes the opening; a shaft member that is attached to the cap and extends into the internal space of the container when the cap is attached to the opening; A connecting portion with a slightly small diameter, a brush holding portion formed in the connecting portion, and a brush attached to the brush holding portion, and at least a portion of the connecting portion between the connecting portion and the shaft member is provided with the cap. A stepped portion facing the side is formed. [Selection diagram] Figure 2

Description

  The present invention relates to a liquid applicator.

  Traditionally, brushes have been used to apply liquids. In order to apply the liquid, first, the liquid is held by the brush. However, if the amount of the liquid held is too large, there is a problem such as liquid dripping. For this reason, the extra liquid adhering to the brush is usually handled by the user himself at the mouth of the container. However, there is a problem that it is difficult to adjust the power of the user. For example, Patent Document 1 discloses an applicator having a function of handling a composition attached to a brush by an opening provided in an inner stopper of a container. As a result, the liquid can be handled successfully regardless of the user's force.

JP 2001-204543 A

  However, such an applicator is particularly useful when performing fine work such as makeup, but since the liquid is handled too much, for example, when used in a large area, There is a problem that the application needs to be repeated many times and the operation becomes complicated. In particular, with a liquid adhesive bandage or the like, there is a problem that it becomes difficult to peel off the coating because the coating is easily broken.

  The present invention has been made to solve this problem, and an object thereof is to provide a liquid applicator capable of adhering a large amount of liquid to a brush.

  The liquid applicator according to the present invention has an opening, a container for storing liquid, an inner plug attached to the opening of the container and formed in a cylindrical shape so as to communicate with the internal space of the container, A cap that removably closes the opening; and a shaft member that is attached to the cap and extends to the internal space of the container when the cap is attached to the opening; A connecting portion having a diameter slightly smaller than the inner diameter of the brush, a brush holding portion formed on the connecting portion, and a brush attached to the brush holding portion, and a connecting portion between the connecting portion and the shaft member, A step portion at least partially facing the cap side is formed.

  According to this configuration, since the step portion facing the cap side is formed at the connection portion between the connection portion and the shaft member, the liquid can be held in the step portion. Therefore, in the process of removing the cap from the container, when the connecting portion passes through the inside plug, the liquid adhering to the outer peripheral surface of the stepped portion and the connecting portion is scraped off and can be attached to the lower brush. . As a result, excess liquid adhering to the connecting portion other than the brush can be handled by the inner plug, while a large amount of liquid can be attached to the brush.

  In the said liquid applicator, the said shaft member can be formed in the flat shape which can be elastically deformed.

  Thereby, a shaft member becomes easy to curve and it becomes easy to give force to a connecting part. Therefore, for example, when the brush is strongly pressed against the inner wall surface of the inner plug, the connecting portion serves as a fulcrum, and the connecting portion between the connecting portion and the shaft member can be inclined so as to approach the inner wall surface side of the inner plug. As a result, the brush-side end of the connecting portion on the opposite side is inclined so as to be separated from the inner wall surface of the inner plug. Along with this, the brush is separated from the inner wall surface of the inner plug. Accordingly, even if the brush is pressed strongly against the inner wall surface of the inner plug, the brush is not sufficiently handled because the brush is separated from the inner wall surface of the inner plug as described above. As a result, it is possible to prevent the liquid from being excessively detached from the brush and to hold a large amount of liquid in the brush.

  In the liquid applicator, the shaft member can be attached to the cap so as to be rotatable around an axis of the shaft member. As a result, even if the shaft member is difficult to bend and the brush is pressed against the inner plug, the shaft member can be rotated and the brush can be pressed against the inner plug in an easily bent direction.

  In the liquid applicator, the inner plug includes a main body portion disposed along the inner wall surface of the container, and a small-diameter portion formed at an end portion on the inner side of the container in the main body portion, The radial distance between the inner wall surface of the main body portion and the inner wall surface of the small diameter portion can be made smaller than the distance between the outer surface of the brush holding portion and the axial center of the brush.

  According to this configuration, even if the brush holding portion is pressed against the inner wall surface of the main body portion, the inner wall surface of the small diameter portion does not reach the axial center of the brush in the radial direction. Thereby, even if it is going to handle a brush with the inner wall surface of a small diameter part, since the inner wall surface of a small diameter part does not fully contact with a brush, it can prevent that a liquid detaches | leaves from a brush too much.

  The liquid applicator may further include a lid member attached to the shaft member and closing the end opening of the inner plug. Thereby, the liquid in the container can be prevented from flowing out to the cap side through the inner plug.

  In each said liquid applicator, the viscosity of the said liquid can be 500-500000 mPa * s in 25 degreeC.

  Thus, since the liquid has viscosity, the liquid easily adheres to the brush, and the amount of application can be increased. Further, when the above-described lid member is provided on the shaft member, the liquid can be caused to enter the gap between the lid member and the inner wall surface of the inner plug by capillary action. As a result, closing of the gap can be assisted.

  According to the liquid applicator according to the present invention, a large amount of liquid can be attached to the brush.

It is a front view of the liquid applicator which concerns on one Embodiment of this invention. It is sectional drawing of FIG. It is the front view (a), sectional drawing (b), and top view (c) of an inside stopper. It is the sectional view on the AA line of FIG. It is sectional drawing which shows the usage method of the liquid applicator of FIG. It is sectional drawing which shows the usage method of the liquid applicator of FIG. It is sectional drawing which shows the usage method of the liquid applicator of FIG.

  Hereinafter, an embodiment of a liquid applicator according to the present invention will be described with reference to the drawings. In the following description, for convenience of description, the description will be based on the orientation of the members in FIG. However, these directions do not limit the present invention.

<1. Overview of liquid applicator>
FIG. 1 is a front view of the liquid applicator, and FIG. 2 is a cross-sectional view of FIG. As shown in FIGS. 1 and 2, the liquid applicator according to the present embodiment includes a container 1 that contains a chemical solution and has an opening 11 in the upper part, and a cap 2 that closes the upper opening 11 of the container 1. ing. A cylindrical inner plug 3 is attached to the upper opening 11 of the container 1. On the other hand, a shaft member 4 extending downward is attached to the cap 2, and a brush holding portion 5 is attached to the tip of the shaft member 4. A brush 6 in which a large number of hairs are bundled is attached to the brush holding portion 5. As shown in FIG. 2, the shaft member 4, the brush holding portion 5, and the brush 6 are accommodated in the internal space of the container 1 when the cap 2 is attached to the opening 11 of the container 1. Yes. Hereinafter, each member will be described.

<2. Container and inner stopper>
Next, the container and the inner stopper will be described with reference to FIG. FIG. 3 is a front view (a), a sectional view (b), and a plan view (c) of the inner plug. As shown in FIGS. 1 to 3, the container 1 is formed in a cylindrical shape, and the upper end portion around the opening 11 is formed to have a smaller outer diameter than that below. And the external thread 12 for attaching the cap 2 is formed in the outer peripheral surface of this upper end part.

  As shown in FIG. 3, the inner plug 3 includes a main body 31 formed in a cylindrical shape and a ring-shaped small-diameter portion 32 formed at the lower end of the main body 31 and having a smaller diameter than the main body 31. I have. The main body portion 31 is formed so that the outer diameter is small at the lower end portion thereof, and the lower end portion is connected to the small diameter portion 32. The inner diameter of the small diameter portion 32 is smaller than the inner diameter of the main body portion 31, and the inner wall surface of the main body portion 31 is curved in a curved shape at the lower end portion and is connected to the small diameter portion 32. The inner diameter of the small diameter portion 32 is preferably slightly larger (specifically, 0.1 mm or more) than the outer diameter K1 of the brush holding portion 5 described later, more specifically, about 0.1 to 1 mm larger. It is preferable that it is larger by about 0.2 to 0.7 mm.

  Further, a flange portion 33 is formed at the upper end edge of the main body portion 31, and the inner plug 3 is fixed to the container 1 by engaging the flange portion 33 with the peripheral edge of the opening 11 of the container 1. It is like that.

  Although the material which comprises the container 1 is not specifically limited, For example, it can form with various materials, such as a metal and a plastics. The inner plug 3 can also be formed of metal, plastic or the like, but is preferably formed of elastically deformable plastic because it is fitted into the opening 11 of the container 1 and attached.

  In addition, the chemical solution stored in the container 1 is not particularly limited, but in order to increase the amount of application to the brush 6 described later, and when the cover member 42 is provided on the shaft member 4, It is preferable to have viscosity because the liquid can be infiltrated into the gap between the small diameter portion 32 of the inner plug 3 by capillarity and as a result, the closing of the gap can be assisted. For example, the viscosity at 20 ° C. is preferably 500 to 500,000 mPa · s, more preferably 500 to 100,000 mPa · s, particularly preferably 500 to 20,000 mPa · s, and 500 to 10,000 mPa · s. More preferably. The viscosity can be measured as follows. First, 52 g of a chemical solution is taken into a vial (NEG screw vial SV-50A, Sansho Co., Ltd.), sealed, and immersed in a 20 ° C. water bath for 30 minutes. Thereafter, B type viscometer TVB-10 type viscometer (BL type, Toki Sangyo Co., Ltd.) and rotor No. 3 is used and operated at 12 rpm, and the value after 10 minutes is read.

<3. Cap, Shaft Member, Brush Holding Unit, and Brush>
Next, the cap 2, the shaft member 4, the brush holding part 5, and the brush 6 will be described with reference to FIG. 4 is a cross-sectional view taken along line AA in FIG. As shown in FIG. 2, the cap 2 has a cylindrical main body 21 whose upper end is closed and whose lower end is open, and a cylindrical shape extending downward from the inner wall surface of the upper end inside the main body 21. The support part 22 is provided. Further, an annular projecting portion 23 surrounding the support portion 22 is formed on the inner wall surface at the upper end of the main body portion 21, and the projecting portion 23 is fitted to the inner edge of the upper end of the inner plug 3. . A female screw is formed on the inner wall surface of the side surface of the main body 21, and this female screw is screwed into the male screw 12 of the container 1. The outer diameter of the main body 21 is substantially the same as the outer diameter below the upper end of the container 1, and when the cap 2 is attached to the container 1 as shown in FIG. It is formed to be the same.

  An opening 221 is formed at the lower end of the support portion 22, and the upper end portion of the shaft member 4 described above is rotatably fitted into the opening 221. That is, the shaft member 4 can rotate around the axis of the shaft member 4 with respect to the cap 2. The shaft member 4 includes an engaging portion 41 fitted into the opening 221 of the support portion 22, a lid member 42 provided at the lower end of the engaging portion 41, and a plate-like shaft main body 43 extending downward from the lid member 42. And. The lid member 42 is formed in a disc shape, and is sized to be fitted into the small diameter portion 32 of the inner plug 3 described above. Specifically, when the lid member 42 is fitted into the small diameter portion 32 of the inner plug 3, the gap between the outer edge of the lid member 42 and the inner wall surface of the small diameter portion 32 is preferably 0.1 mm or more. Specifically, it is preferably about 0.1 to 1 mm.

  The shaft body 43 is formed in a plate shape having substantially the same width as the diameter of the lid member 42, and extends downward. Here, as shown in FIG. 4, the pair of wide left and right surfaces of the shaft body 43 are referred to as a first surface 431 and a second surface 432, and have a width that connects the first surface 431 and the second surface 432. A pair of narrow surfaces 433 will be referred to as side surfaces. A cylindrical brush holding portion 5 having an outer diameter substantially the same as the width of the shaft main body 43 is connected to the lower end of the shaft main body 43. The brush holding portion 5 and the shaft main body 43 are integrally formed of an elastically deformable material such as plastic. Since the shaft main body 43 is formed in a plate shape and the brush holding portion 5 is formed in a cylindrical shape, the connecting portions of the shaft main body 43 and the surfaces 431 and 432 of the shaft main body 43 and the brush holding portion 5 are provided. A step portion 51 is formed by the end face.

  And the brush 6 which consists of many bundled hair is attached to the lower end of the brush holding | maintenance part 5, and is extended below. That is, the upper end of the brush 6 is embedded in the lower end portion of the brush holding portion 5. The bristles constituting the brush 6 can be formed of a resin material such as plastic, for example. In addition, as shown in FIG. 4, it is preferable that the outer diameter K1 of the brush holding | maintenance part 5 is 5-10 mm, and it is further more preferable that it is 5-8 mm. The thickness K3 of the side surface 433 of the shaft main body 43 is preferably 1 mm or more smaller than the outer diameter K1 of the brush holding portion 5, specifically, preferably 1 to 8 mm, and about 1.5 to 5 mm. More preferably. Further, the width K4 of the first surface 431 and the second surface 432 of the shaft body 43 is preferably larger than the width K3 of the side surface 433, specifically 1.1 to 5 times. Further, the outer diameter K2 of the brush is preferably the same as or smaller than the outer diameter K1 of the brush holding portion 5, specifically, it is preferably 2 to 8 mm, and more preferably 2 to 5 mm. . In the present embodiment, the brush holding portion 5 and the connecting portion are integrated.

<4. Usage and Features of Liquid Applicator>
Next, a method of using the liquid applicator configured as described above will be described with reference to FIGS. However, the container 1 is omitted in FIGS. 6 and 7. As shown in FIG. 2, the container 1 contains a chemical solution in an amount that reaches the vicinity of the upper end of the shaft member 4 when the cap 2 is attached to the container 1. That is, the shaft member 4, the brush holding part 5, and the brush 6 are immersed in the chemical solution. At this time, since the lid member 42 closes the lower end opening of the small diameter portion 32 of the inner plug 3, for example, even when the container 1 is tilted, it is possible to prevent the chemical liquid from flowing to the cap 2 side. However, since a slight gap is formed between the lid member 42 and the small-diameter portion 32 of the inner plug 3, it is possible to prevent the shaft member 4 from being difficult to pull out. Even if such a gap is formed, since the chemical liquid has viscosity, it is possible to prevent the chemical liquid from leaking from the gap.

  Then, after the cap 2 is rotated to release the screwed state with the upper end portion of the container 1, as shown in FIG. 5A, when the cap 2 is pulled up, together with the cap 2, the shaft member 4 and the brush holding The part 5 and the brush 6 are also pulled up. At this time, since the chemical solution is viscous, the chemical solution is also held in the step portion 51 formed by the shaft member 4 and the upper end of the brush holding portion 5 and the periphery thereof. Then, when the brush holding part 5 passes through the small diameter part 32 of the inner plug 3 in the process of lifting the cap 2, it adheres to the stepped part 51 and the outer peripheral surface of the brush holding part 5 as shown in FIG. The chemical solution being scraped is scraped off by the edge of the lower opening of the small diameter portion 32 and adheres to the lower portion of the brush holding portion 5, that is, to the brush 6. Therefore, a large amount of chemical liquid can be attached to the brush 6.

  In general, when using such a liquid applicator, the user handles the brush 6 with the inner wall surface of the inner plug 3, reduces the amount of the chemical solution adhering to the brush 6, and then applies the chemical solution to the object. Apply. To handle the brush 6, as shown in FIG. 6, the vicinity of the upper end of the brush 6 is pressed against the inner wall surface of the inner plug 3, and the cap 2 is pulled up while being pressed. Accordingly, since the brush 6 is pressed against the inner plug 3 in order from the upper end to the lower end, the chemical solution attached to the brush 6 is detached from the brush 6. However, if the brush 6 is pressed strongly against the inner plug 3 and handled, the amount of the chemical solution may be reduced too much. On the other hand, in the liquid applicator according to the present embodiment, the shaft main body 43 is formed in a plate shape that can be elastically deformed. Therefore, the following effects can be obtained.

  That is, as shown in FIG. 7, when the first surface 431 or the second surface 432 of the shaft main body 43 is strongly pressed toward the inner wall surface of the inner plug 3, the shaft main body 43 is curved and a brush holding portion having a large diameter is formed. 5 inclines on the inner wall surface of the inner plug 3. That is, in the brush holding portion 5, the vicinity of the step portion 51 at the end on the shaft body 43 side serves as a fulcrum, and the end on the brush 6 side of the brush holding portion 5 on the opposite side is separated from the inner wall surface of the inner plug 3. To do. Along with this, the brush 6 is inclined in a direction away from the inner wall surface of the inner plug 3. Therefore, even if it tries to handle the brush 6 in this state, since the brush 6 is separated from the inner wall surface of the inner plug 3, the brush 6 cannot be handled sufficiently. Thereby, even if the brush 6 is strongly pressed against the inner wall surface of the inner plug 3, it is possible to prevent the amount of the chemical solution from being excessively reduced. Thus, in this embodiment, since the shaft main body 43 made of an elastic material is formed in a plate shape, it is easier to bend, and as a result, the brush holding portion 5 is inclined so that the brush holding portion 5 is inclined. Can be given power. The brush 6 can be weakly pressed against the inner wall surface of the inner plug 3. In that case, the brush 6 is not inclined so as to be separated from the inner wall surface of the inner plug 3, but since the handling force is weak in the first place, the chemical solution does not decrease too much.

  When the brush 6 is pressed against the inner wall surface of the inner plug 3, if the side surface 433 of the shaft main body 43 is pressed against the inner wall surface, the shaft main body 43 is difficult to bend. 6 can be suppressed. If the brush 6 is to be handled in this direction, the shaft member 4 is rotatably attached to the cap 2, so that when the force is applied to the shaft member 4, the shaft member 4 rotates. The first surface 431 or the second surface 432 faces the inner wall surface of the inner plug 3. Therefore, as described above, even if a strong force is applied, it is possible to prevent the amount of the chemical solution from being excessively reduced.

  Furthermore, in the liquid applicator according to the present embodiment, as shown in FIG. 6, the radial distance D <b> 1 from the inner wall surface of the main body portion 31 of the inner plug 3 to the inner wall surface of the small diameter portion 32 is equal to that of the brush holding portion 5. The distance D2 is shorter than the distance D2 from the outer peripheral surface to the axial center S of the brush 6 in the radial direction. Therefore, even if the brush holding portion 5 is pressed against the inner wall surface of the main body portion 31, the inner wall surface of the small diameter portion 32, that is, the edge portion of the lower opening of the inner plug 3 does not reach the axial center S in the radial direction of the brush 6. . Thereby, even if it is going to handle the brush 6, since the edge part of the lower end opening of the inner plug 3 does not fully contact with the brush 6, it can prevent that a chemical | medical solution detaches | leaves from the brush 6 too much.

  As described above, according to the liquid applicator according to the present embodiment, since a large amount of chemical liquid can be attached to the brush 6, a large amount of chemical liquid is applied to the object, or the object having a large area is applied. A chemical solution can be applied.

<5. Modification>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this, A various change is possible unless it deviates from the meaning. The following modifications can be combined as appropriate.

<5-1>
In the above embodiment, the shaft main body 43 of the shaft member 4 is formed in a plate shape and can be elastically deformed. However, it may be a rod shape or may not be elastically deformed. In other words, at least a step portion 51 facing the cap 2 side is formed at a connecting portion between the shaft member 4 and the brush holding portion 5, and the step portion 51 may be configured to hold the chemical solution. The configuration of such a step portion is not particularly limited. As in the above embodiment, at least a part of the shaft main body 43 (shaft member 4) may be made smaller than the brush holding portion 5, thereby forming the stepped portion 51, or the shaft member 4 and the brush holding portion 5 may be formed. It can also be set as a step part by providing a hollow in the connection part. Moreover, the step part 51 may be comprised by the inclined surface and curved surface other than a plane, and at least one part should just face the cap 2 side.

<5-2>
In the above embodiment, the step portion 51 is formed on the upper surface of the brush holding portion 5. However, for example, a connecting portion for forming the step portion is provided at the lower end of the shaft member 4, and the brush holding portion is provided below this. May be provided. That is, in the said embodiment, although the connection part and brush holding part which concern on this invention are integrated, this can also be isolate | separated. Moreover, in the said embodiment, although the shaft member 4 and the brush holding | maintenance part 5 are integrally formed, it can also comprise by another member. Further, the shaft member 4 and the cap 2 can be integrally formed.

<5-3>
In the above embodiment, the liquid applicator that stores the chemical solution in the container 1 and applies it with the brush 6 has been described. However, the present invention is applied not only to the chemical solution but also to various liquids such as cosmetics and adhesives. be able to. In addition, although it is preferable that such a liquid has the above viscosity, it does not necessarily need to have a viscosity.

<5-4>
In the said embodiment, although the brush 6 was attached to the brush holding | maintenance part 5 as a separate member, the brush 6 and the brush holding | maintenance part 5 may be integrated. That is, the shape of the brush 6 is not particularly limited as long as the brush 6 can be applied with a liquid. The brush 6 and the brush holder 5 can be easily integrated by using a material such as plastic.

DESCRIPTION OF SYMBOLS 1 Container 2 Cap 3 Inner plug 4 Shaft member 5 Brush holding part 6 Brush

Claims (6)

A container having an opening and containing a liquid;
An inner plug attached to the opening of the container and formed in a cylindrical shape so as to communicate with the internal space of the container;
A cap for detachably closing the opening;
A shaft member attached to the cap and extending into the interior space of the container when the cap is attached to the opening;
A connecting portion formed at the tip of the shaft member, having a diameter slightly smaller than the inner diameter of the inner plug;
A brush holding part formed in the connecting part;
A brush attached to the brush holding portion;
With
The liquid applicator, wherein at least a part of the connecting portion between the connecting portion and the shaft member is formed with a step portion facing the cap side.   The liquid applicator according to claim 1, wherein the shaft member is formed in a flat shape that can be elastically deformed.   The liquid applicator according to claim 1, wherein the shaft member is attached to the cap so as to be rotatable around an axis of the shaft member. The inner plug includes a main body portion disposed along the inner wall surface of the container, and a small-diameter portion formed at an end portion on the inner side of the container in the main body portion,
The radial distance between the inner wall surface of the main body portion and the inner wall surface of the small-diameter portion is smaller than the distance between the outer surface of the brush holding portion and the axis of the brush. Liquid applicator.   The liquid applicator according to claim 1, further comprising a lid member that is attached to the shaft member and closes an end opening of the inner plug.   The liquid applicator according to any one of claims 1 to 5, wherein the liquid has a viscosity of 500 to 500,000 mPa · s at 20 ° C.