JP2018046951A - Liquid coating member and liquid applicator equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid coating member capable of holding as much liquid as possible and applying the liquid to a coating object, and a liquid applicator equipped with the liquid coating member.SOLUTION: A liquid coating member 4 includes a shaft part 41 having a first end part and a second end part, and a brush part 43 attached to the first end part side of the shaft part. The brush part includes an attaching surface facing the axial direction of the shaft part and a plurality of bristles attached to the attaching surface, which extend in the axial direction. The attaching surface is composed of a surface defined by a first direction and a second direction orthogonal to the first direction. The plurality of bristles are arranged so as to be aligned in the first direction, with a root of at least one set of the bristles adjacent to each other in the first direction being shifted in the second direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a liquid applicator member and a liquid applicator provided with the same.

  Conventionally, in order to apply a liquid such as a chemical solution, a liquid applicator provided with a liquid application member such as a brush has been used (Patent Document 1). In order to apply a liquid using this liquid applicator, first, the brush is immersed in the liquid, the liquid is held in the brush, and then the brush is pressed against the object to be applied to apply the liquid.

JP 2001-204543 A

  By the way, in the case of applying a chemical solution or the like using a liquid applicator as described above, it is necessary to limit the application area, so that a liquid application member with a reduced amount of hair is often used. With such a liquid application member, the amount of liquid held by the brush cannot be increased, and a large amount of liquid cannot be applied to the application target at one time.

  The present invention has been made to solve this problem, and provides a liquid application member that can hold more liquid and can be applied to an application target, and a liquid applicator provided with the liquid application member. With the goal.

  The liquid application member according to the present invention includes a shaft portion having a first end portion and a second end portion, and a brush portion attached to the first end portion side of the shaft portion. An attachment surface facing the axial direction of the shaft portion; and a plurality of hairs attached to the attachment surface and extending in the axial direction, wherein the attachment surface is orthogonal to the first direction. The plurality of hairs are arranged so as to be aligned in the first direction, and at least one set of the roots of the hairs adjacent to the first direction is the surface of the hair. It arrange | positions so that it may slip | deviate to a 2nd direction.

  According to this configuration, the plurality of hairs constituting the brush portion are arranged so that the roots of the adjacent hairs are displaced in the second direction, so that the liquid can be held at the level difference generated thereby. Therefore, more liquid can be held in the liquid holding part, and these can be applied to the application target.

  In the liquid application member, the plurality of hairs can be formed in a plate shape extending in the second direction.

  According to this configuration, since the adjacent hairs are shifted in the second direction, when the liquid is applied to the application target, the hairs that are shifted to the opposite side of the application target in the second direction ( Hereinafter, the first hair) is less in contact with the application target than the hair displaced to the application target side (hereinafter referred to as the second hair). Therefore, when the liquid is applied, the movement of the first hair is smaller than that of the second hair. Thereby, even if the second hair moves in the first direction, this movement is regulated by the first hair. As a result, a plurality of hairs can be made difficult to spread in the first direction. In particular, since both the first hair and the second hair are formed in a plate shape, the effect of regulating the second hair by the first hair is great. Therefore, since the plurality of hairs do not spread and the liquid is applied in a collective state, the liquid is easily separated from the hairs. As a result, the liquid can be efficiently applied.

  In each of the liquid application members, the plurality of hair ends can be disposed at substantially the same position in the second direction.

  According to this configuration, since the hair tips of the plurality of hairs are arranged at substantially the same position in the second direction, the plurality of hairs are arranged in the first direction with the hair tips aligned. Therefore, the liquid held in the hair is easily separated from the hair when the hair is pressed against the application target. Therefore, more liquid can be reliably applied to the application target. Note that “substantially the same position” means not only the completely same position but also a slight deviation from the completely same position to the extent that the above effect can be obtained.

  A liquid applicator according to the present invention has an opening, a container that stores liquid, a cap that removably closes the opening, a second end of the shaft portion attached to the cap, and the cap One of the liquid application members described above that extends into the internal space of the container when attached to the opening.

  The said liquid applicator WHEREIN: The viscosity of the said liquid can be 500-500000 mPa * s in 20 degreeC.

  Thus, since the liquid has viscosity, the liquid can be easily held in the liquid holding unit, the application unit, and the like, and the amount of application can be increased.

  According to the present invention, more liquid can be retained and applied to an application target.

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. FIG. 3 is a sectional view taken along line B-B in FIG. 2. It is a partial side view of a liquid application member. It is CC sectional view taken on the line of FIG. It is the figure which looked at the liquid application member of FIG. 6 from the front end side. It is sectional drawing which shows the usage method of the liquid applicator of FIG. It is CC sectional view taken on the line of FIG. 6 of the state holding the liquid. It is a side view which shows the usage method of a liquid application member. It is a side view which shows the usage method of a liquid application member. It is the figure which looked at the liquid application member of FIG. 6 when apply | coating a liquid from the front end side. It is a front view of a liquid application member. It is sectional drawing which shows the other example of a brush part.

  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 liquid application member 4 extending downward is attached to the cap 2. As shown in FIG. 2, the liquid application member 4 is accommodated in the internal space of the container 1 when the cap 2 is attached to the opening 11 of the container 1. Hereinafter, each member will be described.

<2. Container and inner stopper>
First, 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. Further, 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.

  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 it is preferable that the chemical solution has viscosity in order to increase the amount of the chemical solution retained in the liquid holding unit 42, the brush unit 43, and the like described later. 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 and Liquid Application Member>
Next, the cap 2 and the liquid application member 4 will be described with reference to FIG. 4 is a cross-sectional view taken along line AA in FIG. 2, FIG. 5 is a cross-sectional view taken along line BB in FIG. 2, and FIG. 6 is a partial side view of the liquid application member. 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 of the cap 2, and the liquid application member 4 described above is attached to the opening 221. The liquid application member 4 includes a shaft portion 41, a liquid holding portion 42 provided at the lower end portion of the shaft portion 41, and a brush portion 43 extending downward from the lower end portion of the liquid holding portion 42. These are integrally formed. Hereinafter, the liquid application member 4 will be described in detail.

  The shaft portion 41 has an engagement portion (second end portion) 411 fitted into the opening 221 of the support portion 22, a lid member 412 provided at the lower end of the engagement portion 411, and extends downward from the lid member 412. A plate-like shaft main body 413. The engaging portion 411 is rotatably fitted to the lower end of the support portion 22, whereby the liquid application member 4 is rotatable around the axis of the shaft portion 41 with respect to the cap 2. The lid member 412 is formed in a disk 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 412 is fitted into the small diameter portion 32 of the inner plug 3, the gap between the outer edge of the lid member 412 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.

  As shown in FIG. 4, the shaft body 413 is formed in a plate shape having substantially the same width as the diameter of the lid member 412, and extends downward. Here, as shown in FIG. 4, the pair of wide left and right surfaces of the shaft main body 413 are referred to as a first surface 4131 and a second surface 4132, and have a width for connecting the first surface 4131 and the second surface 4132. A pair of narrow (thin) surfaces will be referred to as side surfaces 4133. A liquid holding part 42 having a rectangular shape in front view is connected to the lower end part (first end part) of the shaft body 413.

  As shown in FIGS. 5 and 6, the liquid holding part 42 has a first surface 421 and a second surface 422 that are continuous with the first surface 4131 and the second surface 4132 of the shaft main body 413, and further the side surface of the shaft main body 413. A pair of side surfaces 423 that are continuous with 4133 are provided. The first surface 421 and the second surface 422 of the liquid holding unit 42 have substantially the same width as the first surface 4131 and the second surface 4132 of the shaft main body 413, and the side surface 423 of the liquid holding unit 42 is the same as that of the shaft main body 413. It has a smaller thickness than the side surface 4133. Accordingly, a step 45 is formed at the boundary between the first surface 4131 and the second surface 4132 of the shaft body 413 and the first surface 421 and the second surface 422 of the liquid holding part 42. The liquid holding portion 42 is formed with a circular through hole 424 that penetrates the first surface 421 and the second surface 422 when viewed from the front.

  Next, the brush portion 43 will be described with reference to FIGS. 7 is a cross-sectional view taken along the line CC of FIG. 6, and FIG. 8 is a view of the brush as viewed from below. As shown in FIGS. 6 to 8, the brush portion 43 includes an attachment surface 431 that forms the lower surface of the liquid holding portion 42, and a plurality of hairs 432 attached to the attachment surface 431. Hereinafter, in describing the brush portion 43, the direction along the first surface 421 and the second surface 422 of the liquid holding portion 42 is the longitudinal direction (first direction), and the direction along the side surface 423 of the liquid holding portion 42 is short. It will be referred to as a direction (second direction).

  The bristles 432 constituting the brush portion 43 are each formed in a plate shape having a triangular shape in side view, and are arranged so as to extend in the lateral direction. The plurality of hairs 432 are attached to the attachment surface 431 so as to be aligned in the longitudinal direction. More specifically, as shown in FIG. 7, the plurality of hairs 432 are alternately arranged in the lateral direction. In other words, the root of one adjacent hair 432 is disposed so as to be shifted toward the first surface 421 side of the liquid holding portion 42, and the root of the other hair 432 is shifted toward the second surface 422 side of the liquid holding portion 42. Is arranged. Hereinafter, the hair that is shifted to the first surface 421 side of the liquid holding unit 42 is referred to as the first hair 4321, and the hair that is shifted to the second surface 422 side is referred to as the second hair 4322. .

  By arranging the plurality of bristles 432 in this way, a step is formed between the roots of the adjacent bristles 4321 and 4322, and due to this step, both end edges along the longitudinal direction of the brush portion 43 are respectively Indentations 433 arranged at a predetermined interval are formed.

  Further, as shown in FIG. 8, the plurality of hairs 432 are alternately arranged in the short direction at the base, but the hair tips 4323 are arranged at substantially the same position in the short direction. Therefore, the hair tips 4323 of the plurality of hairs 432 are arranged so as to be aligned in the longitudinal direction at substantially the same position in the lateral direction.

<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, in FIGS. 11 to 14, for convenience of explanation, the cap 2 is omitted and only a part of the liquid application member 4 is shown. As shown in FIG. 2, when the cap 2 is attached to the container 1, the container 1 contains a chemical solution in an amount reaching the vicinity of the upper end of the shaft portion 41 of the liquid application member 4. At this time, since the lid member 412 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 412 and the small diameter portion 32 of the inner plug 3, it is possible to prevent the shaft portion 41 from being difficult to be pulled 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, the cap 2 is rotated from the state shown in FIG. 2 to release the screwed state with the upper end portion of the container 1, and then the cap 2 is pulled up as shown in FIG. Is also raised. At this time, since the chemical solution is viscous, the chemical solution is applied not only to the outer peripheral surface of each hair 432 in the brush portion 43 but also to the through hole 424 of the liquid holding portion 42 and the stepped portion 45 between the liquid holding portion 42 and the shaft portion 41. Retained. Further, as shown in FIG. 10, the depression 433 as described above is formed by the step between the bases of the adjacent hairs 4321 and 4322, and thus the chemical solution is also held in these depressions 433. Therefore, a large amount of chemical solution can be attached to the brush portion 43.

  As shown in FIG. 11, when the brush portion 43 to which the chemical solution is applied is applied to the application target surface, the chemical solution held in the step 45 or the through hole 424 flows to the brush portion 43 side. In addition to the chemical solution adhering to the surface, the chemical solution flowing from the step 45 or the through hole 424 can also be applied to the application target surface. Further, as shown in FIG. 8, since the hair tips 4323 are aligned, the chemical liquid is easily separated from the brush portion 43, and the chemical liquid can be effectively applied to the application target surface.

  Also, as shown in FIG. 12, when the liquid application member 4 is tilted and the through hole 424 and the step 45 are brought close to the application target surface, the chemical solution held in these can be applied directly to the application target surface.

  Furthermore, the following effects can also be obtained. This will be described with reference to FIG. FIG. 13 is a cross-sectional view of the brush portion 43, and mainly shows a state where the tip side of the second hair 4322 is in contact with the application target surface. At this time, although the tip side of some of the first hairs 4321 is also in contact with the surface to be applied, these are displaced from the first surface 421 side of the liquid holding part 42, so On the base side, the contact to the application target surface is more restricted than the second hair 4322. Therefore, the movement of the first hair 4321 is smaller than that of the second hair 4322 when the chemical solution is applied. Thereby, even if the second hair 4322 moves in the longitudinal direction, this movement is restricted by the first hair 4321. In particular, since the first hair 4321 and the second hair 4322 are both formed in a plate shape, the restriction effect of the second hair 4322 by the first hair 4321 is large. Therefore, as shown in FIG. 14 (b), the hair constituting the brush portion is difficult to spread in the longitudinal direction, and as shown in FIG. 14 (a), the plurality of hairs 432 come into contact with the surface to be applied, and the chemical solution Can be applied. Accordingly, the chemical liquid is easily separated from the brush portion 43, and the chemical liquid can be effectively applied to the application target surface.

  As described above, according to the liquid applicator according to the present embodiment, more chemical liquid can be attached to the brush portion 43, and the attached chemical liquid can be efficiently applied to the application target surface. Therefore, many chemicals can be applied to the application target surface, or the chemicals can be applied to the application target surface having a large area.

<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-described embodiment, the liquid holding portion 42 is provided, but this is not essential. For example, the brush portion 43 can be directly connected to the shaft portion 41.

<5-2>
The arrangement method of the hair in the brush portion 43 is not particularly limited. For example, as shown in FIG. 15A, the first hair 4321 may be extended to the second surface 422 side so that the edges of the first hair 4321 and the second hair 4322 on the second surface 422 side are aligned. it can. Or as shown in FIG.15 (b), a clearance gap can also be formed between the 1st hair 4321 and the 2nd hair 4322 in a transversal direction. In any case, since the first hair 4321 and the second surface 422 are arranged so as to alternate on the first surface side or the second surface side, the chemical solution can be held in the stepped portion between them. it can.

  Moreover, in the said embodiment, although each hair 432 is formed in plate shape, the shape of each hair 432 is not specifically limited. For example, as shown in FIG. 15C, the cross section may be circular. Further, all the hairs 432 may not be staggered, and only some of them may be staggered. Moreover, in the said embodiment, although the hair | bristle tip of each hair 432 is made to align in the substantially same position in a transversal direction, you may shift | deviate.

<5-3>
In the above embodiment, the shaft portion 41, the liquid holding portion 42, and the brush portion 43 of the liquid application member are integrally formed, but may be configured by separate members. Further, the shaft portion 41 may be rod-shaped in addition to being formed in a plate shape as in the above embodiment, and the configuration of the engaging portion 411 is not particularly limited as long as it is attached to the cap 2. The lid member 412 is not essential.

<5-4>
In the above-described embodiment, the liquid applicator that stores the chemical liquid in the container 1 and applies it by the brush portion 43 has been described. However, the present invention is applied not only to the chemical liquid but also to various liquids such as cosmetics and adhesives. can do. In addition, although it is preferable that such a liquid has the above viscosity, it does not necessarily need to have a viscosity.

DESCRIPTION OF SYMBOLS 1 Container 2 Cap 4 Liquid application member 41 Shaft member 43 Brush part

Claims (5)

A shank having a first end and a second end;
A brush portion attached to the first end portion side of the shaft portion;
With
The brush portion has an attachment surface facing the axial direction of the shaft portion, and a plurality of bristles attached to the attachment surface and extending in the axial direction,
The mounting surface is constituted by a surface defined by a first direction and a second direction orthogonal to the first direction,
The plurality of hairs are arranged to line up in the first direction,
A liquid application member, wherein at least one pair of hair roots adjacent to each other in the first direction is arranged so as to be displaced in the second direction.   The liquid application member according to claim 1, wherein the plurality of hairs are formed in a plate shape extending in the second direction.   The liquid application member according to claim 1, wherein the hair ends of the plurality of hairs are arranged at substantially the same position in the second direction. A container having an opening and containing a liquid;
A cap for detachably closing the opening;
The liquid application member according to any one of claims 1 to 3, wherein a second end portion of the shaft portion is attached to the cap, and extends to an internal space of the container when the cap is attached to the opening.
A liquid applicator.   The liquid applicator according to claim 4, wherein the viscosity of the liquid is 500 to 500,000 mPa · s at 20 ° C.