JP3615571B2 - Fluid applicator - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a fluid applicator, and more particularly to a fluid applicator configured to directly supply and apply a fluid filled in an elastic container to a tip applicator.
[0002]
[Prior art]
Conventionally, a fluid discharge port is provided at the tip of the container, and a valve body that opens and closes the discharge port is provided, and the fluid filled in the container is applied by flowing out from the discharge port when the valve is opened. Alternatively, a fluid applicator is known, such as one in which the fluid flowing out from the discharge port is directly dipped into the applicator and applied.
[0003]
As these applicators, for example, as in the applicators disclosed in JP-A-5-305529 and JP-A-5-31996, the valve body can be opened and closed by directly pushing in the applicator. Various applicators filled with fluids such as inks, paints, cosmetics, various repair agents and shoe inks have been proposed in addition to correction fluid applicators that allow fluids to flow out.
[0004]
Of the above known applicators, as shown in FIGS. 13 and 14, description will be made based on an applicator 100 filled with a fluid such as shoe ink.
First, a storage body 101 formed of an elastic body is filled with a fluid such as shoe ink, and a tip member 103 having a liquid discharge port 102 at the center is fixed to the tip of the storage body 101. Yes. An application body 104 made of a ring-shaped sponge is fixed to the outside of the tip member 103. When the cap 105 is screwed to the tip member 103 of the storage body 101 when not in use, the inside of the cap 105 is fixed. A seal rod 106 protruding from the center passes through the center of the application body 104 and closes the liquid discharge port 102 of the tip member 103.
[0005]
As described above, when the applicator 100 is not used, the cap 105 is fitted and the seal rod 106 of the cap 105 closes the liquid discharge port 102, so that the fluid remains liquid even when the storage body 101 is pressed. Although it is not discharged from the discharge port 102, the cap 105 is removed and the storage body 101 is pushed in use, and the fluid inside is pushed out from the liquid discharge port 102 and applied while being immersed in the application body 104. ing.
[0006]
[Problems to be solved by the invention]
However, in the above-described conventional applicator 100, the fluid discharge port 102 opens directly to the outside, so that in the case of an applicator filled with a fluid having low viscosity, When the storage body 101 is shaken out with the cap 105 removed, the fluid filled in the storage body 101 scatters to the outside, or when the storage body 101 is pressed, the fluid rushes out to the outside and stains the surroundings. There were technical issues.
[0007]
Therefore, when using this conventional applicator 100 of this type, first, after removing the cap 105, the applicator 104 is pressed against the other side to be applied, and the container of the storage body 101 is pressed against the fluid. The discharged fluid is sealed by the application body 104 such as a sponge and the other side to be applied so that it does not leak to the outside, and it does not leak or sagging while being immersed in the application body 104. Although it is necessary to apply carefully, there is a problem that it is difficult to obtain a user-friendly applicator such as troublesome application work.
[0008]
In addition, when not in use, since the liquid discharge port 102 of the storage body 101 is blocked by the seal rod 106 of the cap 105, the application body 104 cannot be provided on the upper surface of the liquid discharge port 102. Low fluid is scattered outside, and when the viscosity of the fluid is increased to prevent splashing to the outside, unevenness occurs on the coating surface or the consumption of the fluid increases. Depending on the purpose of use, some fluids with high viscosity cannot be used.
[0009]
Further, in the above-described conventional applicator 100, in order to prevent the fluid discharged from the liquid discharge port 102 from leaking to the outside, the application body 104 fixed around the discharge port 102 is made liquid absorbing. It was necessary to form with a good sponge, and it was unsuitable to use a brush or brush with poor liquid absorption. Even if a sponge is used, the deterioration of the coated body 104 progresses over time, and the broken sponge pieces that are damaged by repeated application adhere to the other side of the application and stain the application surface. was there.
[0010]
On the other hand, like the applicator disclosed in Japanese Patent Laid-Open No. 5-305529 and Japanese Utility Model Laid-Open No. 5-31996, the valve body is opened and closed by directly pushing the application portion at the tip, and the fluid flows out. Even if the applicator is made to be applied, the application body is often formed of felt or the like, and the deterioration progresses with time. There is a problem that it adheres to the surface and soils the coated surface, or the thickness or width of the coated portion of the coated body may be deformed and erased to an extra portion. In particular, in these disadvantages, the fluid is supplied from the periphery of the application body, so that the fluid adheres to the other side to be applied before being absorbed by the application body, and so-called coating unevenness is likely to occur. was there.
[0011]
The present invention has been made to solve the above-described problems of the conventional applicator, and by opening the valve body by removing the cap of the applicator, the fluid is directly supplied from the container body to the applicator. It is an object of the present invention to provide a fluid applicator that facilitates the coating operation, prevents scattering of the fluid to the outside, and hardly causes uneven coating.
[0012]
[Means for Solving the Problems]
In order to achieve such an object, a fluid applicator according to the present invention includes a container body that is molded of an elastic material such as resin and filled with a predetermined fluid, and is sealed in an opening of the container body. An intermediate shaft member integrally projecting a hollow shaft communicating with the liquid discharge port on the outside of the liquid discharge port formed in a substantially central portion, and fitted into the intermediate shaft member in a press-fit state, A tip shaft formed with a communication path into which the hollow shaft of the intermediate shaft member is press-fitted, an application body mounting hole formed on a side eccentric from the communication path, and a communication path communicating with the application body mounting hole from the communication path When the tip shaft member is fitted to the member and the intermediate shaft member, the small shaft is formed in the seal chamber formed by the tip portion of the hollow shaft and the communication passage, and is formed in the communication passage of the tip shaft member. The seal chamber is pressed against the inside and outside of the seal chamber. It consists of an elastic body such as a valve body and a valve spring, and an application body that is applied to a coating body mounting hole of the tip shaft member and applies a fluid, and when the tip shaft member is fitted to the intermediate shaft member, In a state where the valve body incorporated in the seal chamber is pressed against the seal step formed in the communication path of the tip shaft member and the communication path is closed, the fluid in the container body passes through the hollow shaft. Flow into the seal chamber, and further flow from the seal chamber through the communication passage on the side surface of the hollow shaft to the application body mounting hole in which the application body is fitted. When a valve push rod of a predetermined length inserted into the communication path of the tip shaft member is protruded at the inner central portion and the cap is attached to the tip portion of the container body, the valve push rod of the cap is attached to the tip shaft member. Push out the valve element that closes the communication path to close the hollow shaft It is to block the fluid flowing to the seal chamber from the container body.
[0013]
[Action]
Based on such a configuration, according to the present invention, when the applicator is stored without being used or is being transported, a cap is attached to the tip of the container body, and is incorporated into the seal chamber. The valve body is pressed against the tip of the hollow shaft by the valve push rod of the cap so that the fluid does not flow into the seal chamber, so the fluid remains in the seal chamber even if the container body is pressed. There is no leakage. Further, when the cap body is removed from the front end portion of the container body, the valve body is not pushed by the valve push rod, so that the valve body is formed in the communication step of the front end shaft member by the elastic body. It is pressed against the part to shut off the seal chamber from the outside. For this reason, the fluid in the seal chamber is prevented from leaking to the outside, and the fluid that has flowed into the seal chamber from the container body flows into the application body mounting hole through the communication passage, so that the container body is gripped and applied. By applying the body to a desired application surface, the fluid soaked in the application body is applied.
[0014]
Therefore, in the fluid applicator according to the present invention, the fluid discharge port of the fluid does not directly open to the outside, and when in use, the fluid in the container body is supplied directly to the applicator through the seal chamber and when not in use. Since the passage of the fluid is blocked by attaching the cap, an applicator having good usability can be obtained regardless of the viscosity of the fluid.
[0015]
【Example】
Embodiments of the present invention will be described below in detail with reference to the drawings.
[0016]
1 is a longitudinal sectional view of a fluid applicator according to a first embodiment of the present invention when not in use, FIG. 2 is a longitudinal sectional view showing an essential part of the usage state with the cap of FIG. 1 removed, and FIG. 1 is an enlarged view showing the main part of FIG. 1, and FIG. 4 is an enlarged view showing the main part of FIG.
[0017]
In the figure, the container body 1 is formed of a material having elasticity such as a resin, and after filling the container body 1 with a predetermined fluid, the container body 1 has a liquid at a substantially central portion at the tip opening. The intermediate shaft member 2 in which the discharge port 2a is formed is fitted in a sealed state by screws or welding, and the distal shaft member 3 covering the intermediate shaft member 2 is press-fitted or welded to the distal end portion of the intermediate shaft member 2. It is inserted.
[0018]
A hollow shaft 2b communicating with the liquid discharge port 2a is integrally provided on the outside of the liquid discharge port 2a formed in the intermediate shaft member 2, and the tip shaft member 3 is fitted to the intermediate shaft member 2. When worn, the hollow shaft 2b of the intermediate shaft member 2 is press-fitted into the communication passage 3a of the tip shaft member 3, and a seal is provided between the tip of the hollow shaft 2b and the communication passage 3a of the tip shaft member 3. A chamber 4 is formed.
[0019]
When the tip shaft member 3 is fitted to the intermediate shaft member 2, a valve body 5 such as a check ball is incorporated in the seal chamber 4 via an elastic body 6 such as a valve spring. 4 is pressed against the small-diameter seal step 3b formed in the communication passage 3a of the tip shaft member 3 by the elastic body 6 to close the communication passage 3a. The inside and the outside are cut off.
In addition, the edge part on the valve body 5 side of the sealing step 3b may be a spherical surface in accordance with the shape of the valve body, in addition to a right-angle shape or a taper surface.
[0020]
Further, an application body mounting hole 8 into which an application body 7 made of felt, sponge, brush, brush, or the like is fitted is formed on the side eccentric from the communication passage 3a formed at the center of the tip shaft member 3. A counterbore 8a is formed at the bottom of the application body mounting hole 8 and engages with a flange 7a formed at the base end of the application body 7. When the application body 7 is fitted into the application body mounting hole 8 of the tip shaft member 3, the flange portion 7 a of the application body 7 is engaged with the spot facing portion 8 a, and the tip shaft member 3 is attached to the intermediate shaft member 2. By fitting, the rear end surface of the application body 7 is suppressed by the intermediate shaft member 2 and is prevented from coming off.
[0021]
Further, when the distal end shaft member 3 is fitted to the intermediate shaft member 2, it passes through the side surface of the hollow shaft 2 b projecting from the seal chamber 4 to the intermediate shaft member 2 to the spot facing portion 8 a of the application body mounting hole 8. A communication passage 3c that communicates is formed, and the valve body 5 incorporated in the seal chamber 4 is pressed against the seal step 3b formed in the communication passage 3a of the tip shaft member 3 to communicate with the communication passage 3a. In the closed state, the fluid filled in the container main body 1 flows into the seal chamber 4 through the hollow shaft 2b, and further passes through the communication passage 3c formed on the side surface of the hollow shaft 2b. It flows into the spot facing portion 8 a of the application body mounting hole 8.
[0022]
On the other hand, a cap 10 attached to the distal end portion of the container body 1 is screwed to a screw portion 9 formed on the outer peripheral side surface of the intermediate shaft member 2. A valve push rod 11 having a predetermined length that is inserted into the communication passage 3 a of the shaft member 3 is projected. When the cap 10 is screwed to the screw portion 9 of the intermediate shaft member 2, the valve push rod 11 of the cap 10 is inserted into the communication passage 3a of the tip shaft member 3, and the valve body 5 that closes the communication passage 3a. Is pushed back against the elastic body 6 and pressed against the tapered portion 2c at the tip of the hollow shaft 2b, so that the fluid flowing from the container body 1 through the hollow shaft 2b into the seal chamber 4 is blocked. Yes.
[0023]
Based on the above configuration, the cap 10 is attached to the tip of the container body 1 when the applicator is stored without being used or during transportation, as shown in FIGS. 1 and 3. The valve body 5 incorporated in the seal chamber 4 is pressed against the tip of the hollow shaft 2b by the valve push rod 11 of the cap 10 so that the fluid does not flow into the seal chamber 4. Therefore, the fluid does not leak into the seal chamber 4 even when the container body 1 is pressed or the internal pressure of the container body 1 increases due to an increase in ambient temperature.
[0024]
When the cap 10 is removed from the tip of the container body 1 and used, the valve body 5 is released from being pushed by the valve push rod 11 as shown in FIG. 2 and FIG. 6, the seal chamber 4 is blocked from the outside by being pressed against the seal step 3b formed in the communication passage 3a of the tip shaft member 3. For this reason, the fluid in the seal chamber 4 is prevented from leaking to the outside, and the fluid that has flowed into the seal chamber 4 from the container body 1 passes through the communication passage 3c and is seated in the application body mounting hole 8. It flows into the bore 8a. Therefore, by grasping the container main body 1 and applying the application body 7 to a desired application surface, the fluid soaked in the application body 7 is applied, and it is continuously applied while pressing the container main body 1 occasionally. can do.
[0025]
The valve body 5 incorporated in the seal chamber 4 according to the present invention is not limited to a spherical check ball, but can be formed into a piston shape, and the metal valve body 5 is made of stainless steel having a rust prevention effect. The product is preferred. Further, a coil spring is used for the elastic body 6 such as a valve spring that presses the valve body 5, but it may be made of resin.
[0026]
Furthermore, the fluid filled in the container body 1 flows into the seal chamber 4 through the hollow shaft 2b, and from the seal chamber 4 further through the communication passage 3c formed on the side surface of the hollow shaft 2b, The communication passage 3c is formed so as to communicate with a position close to the distal end portion of the application body 7 fitted in the application body mounting hole 8 of the distal end shaft member 3, although it flows into the spot facing portion 8a. You can also. However, according to the embodiment of the present invention, even if the fluid is soaked in the entire coating body 7 to increase the coating area with a single discharge amount, and the fluid is ejected in a large amount, the coating body 7 is Since the volume which holds a liquid can be enlarged, there exists an effect which prevents a liquid dripping. Therefore, even if the container body 1 is pushed too much and a large amount of fluid is discharged, if the pressing force of the container body 1 is released, the excess fluid discharged to the application body 7 side is pulled back to the container body 1 side again. Can do.
[0027]
FIG. 5 is a vertical cross-sectional view of the main part when not in use, showing a second embodiment of the fluid applicator according to the present invention, and FIG. 6 is a vertical cross-sectional view showing the main part in use with the cap of FIG. 5 removed. In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0028]
In the second embodiment according to the present invention, a concave fitting portion 8c having a counterbore portion 8a deepened is formed on the distal end shaft member 3 with which the collar portion 7a of the application body 7 is engaged, and the distal end shaft is formed on the concave fitting portion 8c. The closing plug 12 that forms the second communication passage 12 a that communicates with the communication passage 3 c of the member 3 is fitted, and the introduction hole 7 b that communicates with the second communication passage 12 a of the closure plug 12 is formed from the base end portion of the application body 7. By forming it to a predetermined length, the fluid is better immersed in the application body 7.
[0029]
Accordingly, when the cap 10 of the applicator according to the second embodiment is removed and used, the fluid that has flowed from the container body 1 into the seal chamber 4 passes through the communication passage 3c of the tip shaft member 3 and is recessed. The fluid is absorbed by the application body 7 because it penetrates the entire application body 7 from the introduction hole 7b provided in the approximate center of the application body 7 through the second communication passage 12a of the plug 12 fitted in 8c. It is easy to be done and good applicability can be obtained without dripping.
[0030]
FIG. 7 is a longitudinal sectional view of an essential part when not in use, showing a third embodiment of the fluid applicator according to the present invention, and FIG. 8 is a longitudinal sectional view showing an essential part in a used state with the cap of FIG. 7 removed. In the figure, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.
[0031]
In the third embodiment of the present invention, similarly to the second embodiment, a concave fitting portion 8c having a counterbore portion 8a deepened is formed on the tip shaft member 3 to which the flange portion 7a of the application body 7 is engaged. A liquid absorber 13 such as a sponge having a good fluid holding power of the fluid is fitted into the concave fitting portion 8c, and by this configuration, the concave fitting portion passes through the seal chamber 4 from the container body 1. Since the fluid supplied to 8c is absorbed in a large amount by the liquid absorber 13, there is a gain in that a large coating area can be continuously applied by holding the container body 1 only once.
[0032]
FIG. 9 is a longitudinal sectional view of an essential part when not in use, showing a fourth embodiment of a fluid applicator according to the present invention, and FIG. 10 is a longitudinal sectional view showing an essential part in a used state with the cap of FIG. 9 removed. In the figure, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.
[0033]
When a brush in which fibers are bundled or baked on the applicator applicator 7 or a brush in which fibers are planted using hay lines is used, the fiber density of the brush is low, and the fluid holding power of the fluid is low. Since it is small, there is a problem that liquid dripping is likely to occur. Therefore, in the fourth embodiment according to the present invention, similarly to the third embodiment, the front shaft member 3 engaged with the flange portion 7a of the application body 7 is countersunk. A concave fitting portion 8c having a deepened portion 8a is formed, and a plug 12 having a second communication passage 12a communicating with the communication passage 3c of the distal end shaft member 3 is fitted into the concave fitting portion 8c. 7 is formed with an introduction hole 7b that communicates with the second communication passage 12a of the plug 12 over a predetermined length from the base end, and the introduction hole 7b is made of a sponge or the like having a good fluid holding power of the fluid. The liquid absorber 14 is fitted and configured in this way The Rukoto can liquid retaining force of the fluid is increased to obtain a coating body 7 by the brush which like dripping is not occur.
[0034]
FIG. 11 is a longitudinal sectional view of an essential part when not in use showing a fifth embodiment of a fluid applicator according to the present invention, and FIG. 12 is a longitudinal sectional view showing an essential part in a used state with the cap of FIG. 11 removed. In the figure, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.
[0035]
The fifth embodiment according to the present invention has the same basic structure as the second embodiment, and is formed between the distal end portion of the hollow shaft 2b of the intermediate shaft member 2 and the communication passage 3a of the distal shaft member 3. A valve body 15 incorporated in the seal chamber 4 is formed in a piston shape. Both end portions of the valve body 15 are formed in a hemispherical shape or a conical shape. When the cap 10 is attached when not in use, the valve push rod 11 of the cap 10 is connected to the end shaft member 3 as shown in FIG. The fluid 15 inserted into the passage 3a and closing the communication passage 3a is pressed against the tapered portion 2c at the tip of the hollow shaft 2b, and flows into the seal chamber 4 from the container body 1 through the hollow shaft 2b. It is designed to be blocked.
[0036]
Further, when the cap body 10 is removed from the front end portion of the container body 1 and used, the valve body 15 is pushed by the valve push rod 11 as shown in FIG. The seal chamber 4 is blocked from the outside by being pressed against the seal step 3 b formed in the communication passage 3 a of the shaft member 3. For this reason, the fluid in the seal chamber 4 is prevented from leaking to the outside, and the fluid that has flowed into the seal chamber 4 from the container body 1 passes through the communication passage 3c and is fitted into the recessed fitting portion 8c. It passes through the second communication passage 12a of the plug 12 and soaks into the entire applicator body 7 through an introduction hole 7b provided substantially at the center of the applicator body 7.
[0037]
The fluid applicator according to the present invention is not limited to the embodiments described in the drawings, and various modifications and combinations can be made without departing from the spirit of the invention. Can be selected.
[0038]
【The invention's effect】
As explained in detail above, according to the fluid applicator according to the present invention, the cap is attached to the tip of the container body when the applicator is stored without being used or during transportation. The valve body incorporated in the seal chamber is pressed against the tip of the hollow shaft by the valve push rod of the cap and is blocked so that the fluid does not flow into the seal chamber. Even if the internal pressure of the container body rises due to the rise or the like, the fluid does not leak into the seal chamber.
[0039]
Further, when the cap body is removed from the front end portion of the container body, the valve body is not pushed by the valve push rod, so that the valve body is formed in the communication step of the front end shaft member by the elastic body. The seal chamber is pressed against the outside and the outside of the seal chamber is shut off, so that the fluid in the seal chamber is prevented from leaking to the outside, and the fluid flowing from the container body into the seal chamber is applied through the communication passage. Since it flows into the body mounting hole, the fluid that has soaked the entire application body can be applied evenly by gripping the container body and applying the application body to the desired application surface, and continuously while pressing the container body. Can be applied.
[0040]
Furthermore, according to the present invention, in order to immerse the fluid in the application body, there is no need to open and close the valve body by directly pushing the application body at the tip as in the conventional structure, and the application body has a sponge, felt, or Brushes, brushes and the like can be used as appropriate according to the type and viscosity of the fluid used.
[0041]
Therefore, in the fluid applicator according to the present invention, the fluid in the container body is directly supplied to the applicator through the seal chamber when in use, and the passage of the fluid is blocked by attaching a cap when not in use. Therefore, an applicator having good usability can be obtained regardless of the viscosity of the fluid.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an essential part when not in use, showing a first embodiment of a fluid applicator according to the present invention.
2 is a longitudinal sectional view showing a main part in a used state with the cap of FIG. 1 removed. FIG.
FIG. 3 is an enlarged view showing a main part of FIG. 1;
4 is an enlarged view showing a main part of FIG. 2. FIG.
FIG. 5 is a longitudinal sectional view of an essential part when not in use, showing a second embodiment of a fluid applicator according to the present invention.
6 is a longitudinal sectional view showing a main part in a use state with the cap of FIG. 5 removed. FIG.
FIG. 7 is a longitudinal sectional view of an essential part when not in use, showing a third embodiment of a fluid applicator according to the present invention.
8 is a longitudinal sectional view showing a main part in a use state with the cap of FIG. 7 removed. FIG.
FIG. 9 is a longitudinal sectional view of an essential part when not in use, showing a fourth embodiment of a fluid applicator according to the present invention.
10 is a longitudinal sectional view showing a main part in a use state with the cap of FIG. 9 removed. FIG.
FIG. 11 is a longitudinal sectional view of an essential part when not in use, showing a fifth embodiment of a fluid applicator according to the present invention.
12 is a longitudinal sectional view showing a main part in a use state with the cap of FIG. 11 removed. FIG.
FIG. 13 is a vertical cross-sectional view of a shoe ink applicator having a conventional structure when not in use.
14 is a longitudinal sectional view showing a use state with the cap of FIG. 13 removed. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container body 2 Intermediate shaft member 2a Liquid discharge port 2b Hollow shaft 3 Tip shaft member 3a Communication channel 3b Seal step 3c Connection channel 4 Seal chamber 5 Valve body 6 Elastic body 7 Application body 8 Application body mounting hole 8a Seat Boring part 10 Cap 11 Valve push rod

Claims (4)

A container body that is molded of an elastic material such as resin and filled with a predetermined fluid;
An intermediate shaft member that is fitted in a hermetically sealed state at the opening of the container body and integrally projects a hollow shaft that communicates with a liquid discharge port formed at a substantially central portion;
A communication path that is fitted into the intermediate shaft member in a press-fit state, and a hollow shaft of the intermediate shaft member is press-fitted, an application body mounting hole that is formed on a side that is eccentric from the communication path, and a coating that is applied from the communication path A tip shaft member formed with a communication passage communicating with the body mounting hole;
A seal chamber formed by the distal end portion of the hollow shaft and the communication path by fitting the distal end shaft member to the intermediate shaft member;
A valve body incorporated in the seal chamber and pressed against a small-diameter seal step formed in the communication path of the tip shaft member to shut off the inside and outside of the seal chamber;
An elastic body such as a valve spring that presses the valve body against the seal step;
An application body that is fitted into the application body mounting hole of the tip shaft member and applies a fluid;
A cap attached to the tip of the container body;
It consists of a valve push rod having a predetermined length that is inserted into the communication path of the tip shaft member, protruding from the inner central portion of the cap,
In a state where the valve body incorporated in the seal chamber is pressed against the sealing step formed in the communication path of the tip shaft member to close the communication path, the fluid in the container body passes through the hollow shaft. It flows into the seal chamber, and further flows from the seal chamber through the communication passage on the side surface of the hollow shaft to the application body mounting hole in which the application body is fitted,
In a state where the cap is attached to the distal end portion of the container body, and the valve push rod of the cap pushes out the valve body closing the communication path of the distal end shaft member to block the hollow shaft, the seal chamber is removed from the container body. A fluid applicator characterized in that it is configured to block the fluid flowing into the tube. Forming a recessed fitting portion having a counterbore portion deepened in an application body mounting hole in which an application body is fitted to the tip shaft member;
A plug that forms a second communication passage communicating with the communication passage of the tip shaft member is fitted into the concave fitting portion,
2. The fluid applicator according to claim 1, wherein an introduction hole communicating with the second communication passage of the plug is formed in the applicator to improve the penetration of the fluid into the applicator. . Forming a recessed fitting portion having a counterbore portion deepened in an application body mounting hole in which an application body is fitted to the tip shaft member;
The fluid applicator according to claim 1, wherein a liquid absorber that enhances the fluid holding force of the fluid is fitted to the concave fitting portion. Forming a recessed fitting portion having a counterbore portion deepened in an application body mounting hole in which an application body is fitted to the tip shaft member;
A plug that forms a second communication passage that communicates with the communication passage of the tip shaft member is fitted into the concave fitting portion, and the application body is molded with a brush, and the application body communicates with the second communication passage of the auxiliary plug. Forming an introduction hole to
The fluid applicator according to claim 1, wherein a liquid absorber that enhances the fluid holding power of the fluid is fitted into the introduction hole of the applicator.

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