JP6695149B2 - Liquid applicator - Google Patents

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 brush is made to hold the liquid, but if the amount of the liquid held is too large, there is a problem such as liquid dripping. Therefore, the excess liquid attached 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 strength of the user. For example, Patent Document 1 discloses an applicator having a function of handling a composition attached to a brush through an opening provided in an inner plug inside a container. As a result, the liquid can be handled successfully regardless of the force of the user.

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, It is necessary to repeat the application many times, and there is a problem that the work becomes complicated. Further, in particular, when applied thinly with a liquid adhesive bandage or the like, there is a problem in that the film is easily broken and it is difficult to peel it off.

  The present invention has been made to solve this problem, and an object of the present invention 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 a container having an opening, in which a liquid is stored, an inner stopper attached to the opening of the container and formed in a tubular shape so as to communicate with the internal space of the container, A cap that detachably closes the opening, a shaft member that is attached to the cap and that extends to the internal space of the container when the cap is attached to the opening, and a cap formed at the tip of the shaft member. A connecting portion having a diameter slightly smaller than the inner diameter of the brush, a brush holding portion formed in the connecting portion, and a brush attached to the brush holding portion, the connecting portion between the connecting portion and the shaft member, At least a portion is formed with a step portion facing the cap side.

  According to this structure, since the step portion facing the cap side is formed at the connecting portion between the connecting portion and the shaft member, the liquid can be retained in the step portion. Therefore, in the process of removing the cap from the container, when the connecting portion passes through the inside of the inside plug, the liquid adhering to the outer peripheral surface of the step portion or the connecting portion is scraped off and can be attached to the brush below. .. As a result, the excess liquid attached 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 liquid applicator, the shaft member may be formed in a flat shape that is elastically deformable.

  As a result, the shaft member is easily bent, and a force is easily applied to the connecting portion. 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 be close to the inner wall surface side of the inner plug. As a result, the brush-side end of the opposite connecting portion is inclined so as to be separated from the inner wall surface of the inside plug. Along with this, the brush is separated from the inner wall surface of the inner plug. Therefore, even if the brush is pressed against the inner wall surface of the inner plug to handle it, the brush is separated from the inner wall surface of the inner plug as described above, and thus the brush cannot be sufficiently handled. As a result, it is possible to prevent the liquid from excessively separating from the brush, and it is possible to hold a large amount of liquid on the brush.

  In the liquid applicator, the shaft member can be attached to the cap so as to be rotatable around the axis of the shaft member. Accordingly, even if the shaft member is difficult to bend and the brush is pressed against the inner plug, the shaft member rotates and the brush can be pressed against the inner plug in a direction in which the shaft easily bends.

  In the liquid applicator, the inner plug comprises a main body portion arranged along an inner wall surface of the container, and a small diameter portion formed at an end portion of the main body portion on the inner side of the container, 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 smaller than the distance between the outer surface of the brush holding portion and the axis of the brush.

  According to this configuration, even if the brush holder is pressed against the inner wall surface of the main body, the inner wall surface of the small diameter portion does not reach the axial center of the brush in the radial direction. Thus, even if the brush is attempted to be handled by the inner wall surface of the small-diameter portion, the inner wall surface of the small-diameter portion does not come into sufficient contact with the brush, so that it is possible to prevent the liquid from excessively separating from the brush.

  The liquid applicator may further include a lid member that is attached to the shaft member and closes an 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 of the liquid applicators described above, the viscosity of the liquid may be 500 to 500,000 mPa · s at 25 ° C.

  As described above, since the liquid has a viscosity, the liquid easily adheres to the brush and the amount of application can be increased. Further, when the shaft member is provided with the lid member as described above, the liquid can be infiltrated into the gap between the lid member and the inner wall surface of the inner plug by the capillary phenomenon. As a result, closing of the gap can be assisted.

  According to the liquid applicator of 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 plug. 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, one embodiment of a liquid applicator according to the present invention will be described with reference to the drawings. In the following, for convenience of description, the description will be given based on the orientation of the members in FIG. 1. However, these directions do not limit the present invention.

<1. Overview of liquid applicators>
1 is a front view of the liquid applicator, and FIG. 2 is a sectional view of FIG. As shown in FIGS. 1 and 2, the liquid applicator according to the present embodiment includes a container 1 in which a drug solution is stored and which has an opening 11 in an upper portion, and a cap 2 which 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 holder 5 is attached to the tip of the shaft member 4. A brush 6 in which a large number of bristles are bundled is attached to the brush holder 5. As shown in FIG. 2, when the cap 2 is attached to the opening 11 of the container 1, the shaft member 4, the brush holder 5, and the brush 6 are housed in the internal space of the container 1. There is. 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 of the lower portion. A male screw 12 for attaching the cap 2 is formed on the outer peripheral surface of the upper end portion.

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

  A flange portion 33 is formed on the upper end edge of the main body portion 31, and the inner stopper 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 this.

  The material forming the container 1 is not particularly limited, but can be formed of various materials such as metal and plastic. Further, the inner plug 3 can also be formed of metal, plastic, or the like, but since it is fitted into the opening 11 of the container 1 and attached, it is preferably formed of elastically deformable plastic.

  Further, the chemical solution contained in the container 1 is not particularly limited, but in order to increase the coating amount on the brush 6 described later, and when the shaft member 4 is provided with the lid member 42, It is preferable that the liquid has a viscosity because the liquid can be introduced into the gap between the small diameter portion 32 of the inner plug 3 and the small diameter portion 32 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 drug solution is placed in a vial (NEG screw vial SV-50A, Sansho Co., Ltd.), and the container is tightly closed and immersed in a water bath at 20 ° C. for 30 minutes. Then, a B-type viscometer TVB-10 type viscometer (BL type, Toki Sangyo Co., Ltd.) and a rotor No. 3 is operated at a rotation speed of 12 rpm, and the value after 10 minutes is read.

<3. Cap, shaft member, brush holder, and brush>
Next, the cap 2, the shaft member 4, the brush holding portion 5, and the brush 6 will be described with reference to FIG. FIG. 4 is a cross-sectional view taken along the line AA of FIG. As shown in FIG. 2, the cap 2 has a cylindrical main body portion 21 having an upper end closed and a lower end opened, and a cylindrical shape extending downward from an inner wall surface of the upper end inside the main body portion 21. And a supporting portion 22 of. Further, an annular projecting portion 23 surrounding the support portion 22 is formed on the inner wall surface of the upper end of the main body portion 21, and the projecting portion 23 is adapted to fit on the inner edge of the upper end of the inside plug 3. .. A female screw is formed on the inner wall surface of the side surface of the body portion 21, and the female screw is screwed into the male screw 12 of the container 1. Further, the outer diameter of the main body portion 21 is substantially the same as the outer diameter below the upper end portion of the container 1, and as shown in FIG. 1, when the cap 2 is attached to the container 1, the overall outer diameter is almost the same. They are 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 in the opening 221. That is, the shaft member 4 is rotatable about the axis of the shaft member 4 with respect to the cap 2. The shaft member 4 includes an engagement portion 41 fitted into the opening 221 of the support portion 22, a lid member 42 provided at a lower end of the engagement portion 41, and a plate-shaped shaft main body 43 extending downward from the lid member 42. And are equipped with. The lid member 42 is formed in a disc shape, and has a size to be fitted into the small diameter portion 32 of the inside plug 3 described above. Specifically, when the lid member 42 is fitted into the small diameter portion 32 of the inside 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 a width substantially the same as the diameter of the lid member 42, and extends downward. Here, as shown in FIG. 4, a pair of left and right wide surfaces of the shaft main body 43 is referred to as a first surface 431 and a second surface 432, and a width for connecting the first surface 431 and the second surface 432. The pair of narrow surfaces 433 will be referred to as side surfaces. A cylindrical brush holder 5 having an outer diameter substantially the same as the width of the shaft body 43 is connected to the lower end of the shaft body 43. The brush holder 5 and the shaft body 43 are integrally formed of an elastically deformable material such as plastic. Since the shaft body 43 is formed in a plate shape and the brush holding portion 5 is formed in a cylindrical shape, the surfaces of the surfaces 431 and 432 of the shaft body 43 and the brush holding portion 5 are connected to each other. A step portion 51 is formed by the end face.

  A brush 6 composed of a large number of bundled bristles is attached to the lower end of the brush holder 5 and extends downward. That is, the upper end of the brush 6 is embedded in the lower end of the brush holder 5. The bristles forming the brush 6 can be formed of, for example, a resin material such as plastic. In addition, as shown in FIG. 4, the outer diameter K1 of the brush holder 5 is preferably 5 to 10 mm, and more preferably 5 to 8 mm. The thickness K3 of the side surface 433 of the shaft body 43 is preferably smaller than the outer diameter K1 of the brush holder 5 by 1 mm or more, specifically, 1 to 8 mm, and about 1.5 to 5 mm. Is more preferable. Further, the width K4 of the first surface 431 and the second surface 432 of the shaft main 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, more preferably 2 to 5 mm. .. In addition, in this embodiment, the brush holding part 5 and the connecting part 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, when the cap 2 is attached to the container 1, the container 1 contains an amount of the chemical liquid which reaches the vicinity of the upper end of the shaft member 4. That is, the shaft member 4, the brush holder 5, and the brush 6 are immersed in the chemical liquid. At this time, since the lid member 42 closes the lower end opening of the small diameter portion 32 of the inner plug 3, it is possible to prevent the chemical solution from flowing to the cap 2 side even if the container 1 is tilted, for example. 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 a viscosity, it is possible to prevent the chemical liquid from leaking from the gap.

  Then, after rotating the cap 2 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, the cap 2, the shaft member 4, and the brush holder are held. 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 retained on the stepped portion 51 formed by the shaft member 4 and the upper end of the brush holding portion 5 and its surroundings. Then, when the brush holding part 5 passes through the small diameter part 32 of the inside plug 3 in the process of pulling up the cap 2, as shown in FIG. 5B, the brush holding part 5 adheres to the step part 51 and the outer peripheral surface of the brush holding part 5. The chemical solution being scraped off is scraped off by the edge of the lower opening of the small diameter portion 32, and adheres to the lower side of the brush holding portion 5, that is, the brush 6. Therefore, a large amount of chemical liquid can be attached to the brush 6.

  Generally, when using such a liquid applicator, the user handles the brush 6 on the inner wall surface of the inner plug 3 to reduce the amount of the drug solution attached to the brush 6 and then apply the drug solution to the target object. Apply. In order 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. As a result, from the upper end to the lower end of the brush 6, the brush 6 is sequentially pressed and handled by the inner plug 3, so that the chemical liquid adhering to the brush 6 is released from the brush 6. However, if the brush 6 is strongly pressed against the inner plug 3 and handled, the amount of the chemical solution may be excessively reduced. On the other hand, in the liquid applicator according to the present embodiment, since the shaft body 43 is formed in the elastically deformable plate shape, 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 body 43 is strongly pressed toward the inner wall surface of the inside plug 3, the brush body having a large diameter is curved while the shaft body 43 is curved. 5 inclines on the inner wall surface of the inner plug 3. That is, in the brush holder 5, the vicinity of the step 51 at the end on the shaft body 43 side serves as a fulcrum, and the end of the brush holder 5 on the opposite side on the brush 6 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 an attempt is made to handle the brush 6 in this state, the brush 6 cannot be sufficiently handled because it is separated from the inner wall surface of the inner plug 3. 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 decreasing too much. As described above, in the present embodiment, since the shaft main body 43 made of the elastic material is formed into a plate shape, the shaft main body 43 is more easily bent, and as a result, the brush holding portion 5 is inclined to the extent that the brush holding portion 5 is inclined. Power can be applied to. The brush 6 can be pressed weakly 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 the handling force is weak in the first place, and therefore the chemical liquid 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 body 43 is pressed against the inner wall surface, the shaft body 43 is difficult to bend. It is possible to suppress trying to handle 6. Further, if the brush 6 is attempted to be handled in this direction, the shaft member 4 is rotatably attached to the cap 2, and therefore, when a force is applied to the shaft member 4, the shaft member 4 rotates. Then, the first surface 431 or the second surface 432 comes to face the inner wall surface of the inside plug 3. Therefore, as described above, it is possible to prevent the amount of the chemical solution from decreasing too much even when a strong force is applied.

  Further, in the liquid applicator according to the present embodiment, as shown in FIG. 6, the radial distance D1 from the inner wall surface of the main body portion 31 of the inside plug 3 to the inner wall surface of the small diameter portion 32 is equal to that of the brush holding portion 5. It is formed to be shorter than the distance D2 from the outer peripheral surface to the radial axis S of the brush 6. 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 of the brush 6 in the radial direction. .. Accordingly, even when trying to handle the brush 6, the edge portion of the lower end opening of the inner plug 3 does not come into sufficient contact with the brush 6, and thus it is possible to prevent the chemical solution from coming off too much from the brush 6.

  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 can be applied to an object or an object having a large area can be applied. A chemical solution can be applied.

<5. Modification>
Although one embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the present invention. 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 into a plate shape and is elastically deformable, but it may be rod-shaped or may not be elastically deformed. That is, at least the stepped portion 51 facing the cap 2 is formed at the connecting portion between the shaft member 4 and the brush holding portion 5, and the stepped portion 51 may be configured to hold the chemical solution. The structure of such a step is not particularly limited. As in the above-described embodiment, at least a part of the shaft main body 43 (shaft member 4) may be smaller than the brush holding portion 5 to form the step portion 51, or the shaft member 4 and the brush holding portion 5 may be formed. It is also possible to form a step by providing a recess in the connecting portion with. Further, the stepped portion 51 may be formed of an inclined surface or a curved surface other than a flat surface, and at least a part thereof may face the cap 2 side.

<5-2>
In the above-described 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 below this. May be provided. That is, in the above-mentioned embodiment, the connecting portion and the brush holding portion according to the present invention are integrated, but they can be separated. Further, in the above-described embodiment, the shaft member 4 and the brush holding portion 5 are integrally formed, but they may be formed as separate members. Further, the shaft member 4 and the cap 2 can be integrally formed.

<5-3>
In the above embodiment, the liquid applicator in which the liquid medicine is contained in the container 1 and is applied by the brush 6 has been described, but the present invention is applied not only to the liquid medicine but also to various liquids such as cosmetics and adhesives. be able to. Note that such a liquid preferably has the above-mentioned viscosity, but it does not necessarily have to have the viscosity.

<5-4>
In the above embodiment, the brush 6 is attached to the brush holding portion 5 as a separate member, but the brush 6 and the brush holding portion 5 may be integrated. That is, the form of the brush 6 is not particularly limited as long as it is configured to be able to apply a liquid. The brush 6 and the brush holder 5 can be easily integrated with each other by using a material such as plastic.

1 Container 2 Cap 3 Inner Plug 4 Shaft Member 5 Brush Holder 6 Brush

Claims (4)

A container having an opening and containing a liquid;
An inner stopper attached to the opening of the container and formed in a tubular shape so as to communicate with the internal space of the container,
A cap that detachably closes the opening,
A shaft member attached to the cap and extending into the internal space of the container when the cap is attached to the opening;
A connecting portion formed at the tip of the shaft member and having a diameter slightly smaller than the inner diameter of the inner plug,
A brush holder formed on the connecting portion,
A brush attached to the brush holder,
A lid member attached to the shaft member for closing an end opening of the inner plug;
Equipped with
At least a part of the connecting portion between the connecting portion and the shaft member has a step portion facing the cap side ,
The liquid applicator , wherein the shaft member extending between the lid member and the step portion is formed in a bar shape or a flat shape that is elastically deformable . The liquid applicator according to claim 1 , wherein the shaft member is attached to the cap rotatably around an axis of the shaft member. The inner plug comprises a main body portion arranged along the inner wall surface of the container, and a small diameter portion formed at an end portion of the main body portion on the inner side of the container,
The liquid applicator according to claim 1 or 2 , wherein a radial distance between an inner wall surface of the main body portion and an inner wall surface of a small diameter portion is smaller than a distance between an outer surface of the brush holding portion and an axis of the brush. .. The viscosity of the liquid, at 20 ° C., a 500~500000mPa · s, the liquid applicator according to any one of claims 1 to 3.