JP2001080275A - Applicator, and its application liquid feeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To throttle the flow-out amount of an application liquid to a small amount while keeping the working and the assembly of a valve easy, by pressing the valve body of an application liquid feeding valve which is arranged at the tip end section of an application liquid tank, to a valve seat by an urging member which is arranged behind a flow rate-regulating member. SOLUTION: When a fiber bundle tip pen 1 as an applicator is used, a tip 5 is pushed in by a writing pressure, and the valve disc 12 or the like of an ink-feeding valve 6 retracts, and the opening of a housing 11 is opened. Therefore, an ink is fed from an ink tank 3 to the tip 5. Then, when the rear end surface of the tip rear section 5b comes into contact with the tip end surface of a tip plug 4, the retraction of the tip 5 is restricted. In this case, for the ink-feeding valve 6, the spherical valve disc 12, which is held in the housing 11 forming a valve chest, is urged in a manner to be pressed to the valve seat through a flow rate-regulating member by a spring 13. By this constitution, the flow-out amount of the ink can be throttled to a small amount while keeping the working and the assembly of the ink-feeding valve 6 easy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator which can be used as a writing instrument or a cosmetic tool, and more particularly to an applicator having a coating liquid such as ink or cosmetic liquid contained in a cylindrical tank. It is.

[0002]

2. Description of the Related Art The present applicant has disclosed a free ink type applicator (writing implement) having an improved structure capable of supplying ink smoothly and capable of continuous writing.
No. 495. This applicator has a cylindrical ink tank containing ink, and a fiber bundle chip that exudes ink by capillary action or the like, and the ink in the ink tank is guided to the chip to be written. An ink supply valve is provided at the tip of the ink tank. The valve includes a valve chamber having a valve seat that opens at the tip, and a spherical valve that is housed movably back and forth in the valve chamber and can be seated on the valve seat. A valve body is pressed against a valve seat by a spring, the tip is provided on the tip side of the valve, and the rear end side of the tip is in contact with the tip of the valve body. Is what you do.

[0003] The conventional applicator described above, when not in use,
Since the valve body in the valve chamber is pressed toward the opening of the valve chamber by the spring, there is no ink supply. Further, when the tip of the chip is pressed against paper or the like during writing, the sphere is unintentionally pushed up by the writing pressure at the time of writing, and the ink in the ink tank can be gradually oozed to the chip. Therefore, there is no ink fogging, there is no need to stop writing to supply ink to the chip, and no excessive amount of ink is supplied to the chip,
There is an advantage that a beautiful handwriting can be obtained.

Further, as in the embodiments shown in FIGS. 2 to 5 of the above-mentioned conventional publication, the diameter of the rear end of the tip is made larger than the opening diameter of the valve, and the diameter of the valve body projecting from the valve seat opening to the front end side is increased. By bringing the rear end of the chip into contact with the front end, the ink ejected from the opening can be surely absorbed by the rear end of the chip, and further ink fogging can be prevented.

[0005]

In order to control the amount of ink flowing out per unit time to a very small amount by the above-mentioned conventional structure, the outer diameter of the valve body is asymptotically approached to the inner diameter of the valve chamber. It is necessary to reduce the gap between the two. On the other hand,
In order to ensure the seal between the valve element and the valve seat when not in use and to secure a large projection amount of the valve element tip from the valve seat opening while the valve element outer diameter and the valve chamber diameter are substantially equal, It is necessary to process the valve seat into a concave shape that exactly follows the outer peripheral surface of the valve body. However, concave processing of such a valve seat is extremely difficult.

If the valve body is made up of a relatively small diameter sphere,
Even if the valve seat is formed by normal caulking, it is possible to secure the amount of protrusion of the valve body tip and secure the sealing performance, but the gap between the valve body and the valve chamber increases, The flow rate of the ink is increased, which may cause fogging. In particular, when the viscosity of the ink or the viscosity of the backflow preventing agent provided at the rear end of the ink is low, the amount of the ink flowing out becomes excessive.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an applicator capable of minimizing the amount of ink flowing out while ensuring the ease of processing and assembling the valve, and an object of the present invention.

[0008]

Means for Solving the Problems In order to achieve the above object, the present invention employs the following technical means.

That is, a coating liquid supply device for a coating tool according to the present invention includes a tank containing a coating liquid, and a coating liquid supply valve provided at a distal end of the tank. A valve chamber having a valve seat to be moved, a valve body accommodated in the valve chamber so as to be movable back and forth, and capable of seating on the valve seat, and a flow regulating member accommodated in the valve chamber behind the valve body so as to be movable back and forth in the valve chamber. Wherein the valve body is pressed against the valve seat by the urging force of an urging member disposed behind the flow rate regulating member via the flow rate regulating member.

[0010] The applicator includes a writing implement and a makeup implement. The coating liquid may be water-based or oil-based, and an appropriate liquid depending on the application such as ink and mascara can be used. The tank is preferably cylindrical, and in the case of a cylindrical tank (ink storage cylinder) having an open rear end, a backflow preventing agent can be provided in the tank at the rear end of the ink. In addition, the present invention can be applied to an air-replacement type applicator in which ink is contained in a bottomed cylindrical tank whose rear end is closed. The valve body is preferably spherical, and the front end side of the valve chamber has a funnel shape with a constricted shape, and the diameter of the front end opening is made slightly smaller than the diameter of the spherical valve body. In addition, a step that contacts the rear surface of the valve body can be provided in the valve chamber so as to prevent the valve body from completely immersing in the opening.

The coating liquid supply apparatus according to the present invention is, for example, a coating tool having a structure in which a tip of a pen tip is disposed at a tip end of a coating liquid supply valve, and a rear end of the tip is brought into contact with a tip of a valve body. (Writing implement). In the present invention,
When not in use, the valve element in the valve chamber is pressed toward the valve seat in the valve chamber by the biasing member, and the valve element closes the valve seat opening. Therefore, when not in use, the ink tank is sealed by the valve and there is no ink supply. When the tip of the chip is pressed against paper or the like during writing, the rear end of the chip slightly pushes up the valve body to open the valve seat opening of the valve chamber.
If a ball is used as a member for closing the opening of the valve chamber, the opening of the valve chamber can be completely closed regardless of the posture of the member for closing, and conversely, the ball can be slightly closed. By pushing up, a gap for supplying the ink can be secured.

Further, according to the present invention, since the flow rate regulating member is provided in the valve chamber separately from the valve body, it is necessary to regulate the outflow amount of the coating liquid by the gap between the valve body and the valve chamber. Instead, the outflow amount can be controlled by making the gap between the flow rate regulating member and the valve chamber minute, so that the outflow amount of the coating liquid is excessive even if the valve body is configured to have a relatively small diameter. Never be. Further, the workability of the valve seat and the ease of assembling the valve body and the flow rate regulating member are not complicated, and it is possible to improve the yield and reduce the cost. In addition, since the curvature of the outer peripheral surface is reduced by reducing the diameter of the valve body, a relatively large amount of protrusion of the valve body tip from the valve seat opening is ensured, and desired operation and performance can be achieved even when assembly accuracy is low. And a large stroke amount of the valve element can be secured.

In the coating liquid supply apparatus of the present invention, the gap between the flow regulating member and the valve chamber is smaller than the gap between the valve body and the valve chamber when the valve body is separated from the valve seat. It is preferable to design so that Specifically, the gap as described above can be formed by reducing the diameter of the valve body and increasing the diameter of the flow regulating member.

Further, it is preferable that the valve body is constituted by a ball. Further, the flow rate regulating member can be constituted by a sphere having a larger diameter than the valve body, and can also be constituted by a cylinder having a larger diameter than the valve body.

Further, a preferable configuration of an applicator provided with the above-mentioned coating liquid supply device is such that a tip of a pen tip is disposed at a tip end of a coating liquid supply valve of the above-mentioned coating liquid supply device, and a rear end of the tip is a valve body. The valve body is retracted by application pressure acting on the chip during use, and a small amount of application liquid is supplied to the chip from the application liquid supply valve. It is preferable that the chip is constituted by a fiber bundle type chip made of a material from which a coating liquid such as a fiber bundle can be exuded by capillary action or the like. Further, in the above applicator, by making the diameter of the tip rear end larger than the opening diameter of the valve, the application liquid such as ink discharged from the opening is surely absorbed by the tip rear end, It is possible to prevent one layer of the coating liquid from fogging.

In the above-mentioned applicator of the present invention, the tank is cylindrical, the tank is disposed in the outer cylinder, and the tip is attached to the tip of the outer cylinder so as to be able to retreat. be able to. In this way, the double wall structure of the tank and the outer cylinder makes it possible to replace only the tank,
The degree of freedom of the constituent materials and strength of the tank can be improved.

[0017]

Preferred embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show a fiber bundle tip pen 1 using water-based ink as an embodiment of the applicator 1 of the present invention. The applicator 1 includes an outer cylinder 2 serving as a pen body.
(Outer body), a tail plug 7, an ink supply device 30, and a pen tip 5;
It is composed of an ink tank 3, a tip plug 4, an ink supply valve 6, a closing material 8, and the like.

The outer cylinder 2 is a cylindrical member made of a resin such as polypropylene or a metal such as aluminum or stainless steel, and is preferably made of a transparent or translucent hard synthetic resin. The distal end side of the outer cylinder 2 is gradually thinned, and the portion of the distal end of the outer cylinder 2 having the smallest diameter is a tip holding cylinder portion 2b.
The tip 5 is fitted to the tip holding cylinder portion 2b at the tip of the outer cylinder 2 so as to be able to slide back and forth without play. In the illustrated embodiment, a longitudinal groove 25 extending in the front-rear direction is formed on the inner surface of the tip holding cylinder portion 2b, and a gap is formed between the urethane foam 16 and an inner peripheral surface of the outer cylinder 2 described later. By providing the ribs 26, the outside air introduction hole opened at the tip is formed. However, the outside air introduction hole may be formed in the peripheral wall of the outer cylinder 2. A cap (not shown) can be detachably attached to the tip of the outer cylinder 2.

The ink supply device 30 is disposed in the outer cylinder 2 and supplies a small amount of ink to the chip 5 only at the time of writing. The ink supply device 30 includes a cylindrical ink tank 3 for storing ink (coating liquid), a tip plug 4 having an ink circulation hole 9 provided at a tip end of the ink tank 3, An ink supply valve 6 provided in the ink circulation hole 9;

The ink tank 3 is a cylindrical body made of a resin such as polypropylene or a metal such as aluminum or stainless steel, and is disposed inside the outer cylinder 2.
The ink tank 3 is hollow so that the ink can be stored therein. The outer diameter of the ink tank 3 is smaller than the inner diameter of the outer cylinder 2, so that a space is formed between the ink tank 3 and the outer cylinder 2.

The tip plug 4 is made of a hard synthetic resin such as polypropylene or a metal, and is disposed at an intermediate portion of the outer cylinder 2 in the axial direction.
An ink flow hole 9 (a coating liquid flow hole) penetrating in the axial direction is formed at the center of the shaft. The flow hole 9 has a gradually increasing diameter from the rear end to the front end.

The rear end 4a of the front plug 4 is cylindrical, and a cylindrical seal member 20 is fitted around the rear part 4a. The seal member 20 is interposed between the outer surface of the rear portion 4a of the tip plug 4 and the inner surface of the ink tank 3, and has a function of preventing ink leakage.

In the present embodiment, as the constituent material of the seal member 20, a material through which the solvent of the ink can pass is used. That is, in the case of a water-based ink, the transmission coefficient is 2.
5 to 10.0 cm ³ · cm / cm ² · s · Pa, more preferably 3.
A material having a water vapor transmission coefficient of 0 cm ³ · cm / cm ² · s · Pa or more, for example, a porous material such as silicon rubber can be used as a constituent material of the seal member 20. Silicon rubber or its copolymer has a large intermolecular chain distance, a sparse structure, and a high degree of molecular flexibility, and thus has relatively high gas permeability. Therefore, even in the case of oil-based ink, the seal member 20 can be made of silicone rubber.
The water vapor (vaporized gas of the ink solvent) that has passed through the seal member 20 is dispersed in the space around the chip 5, and has an effect of preventing the evaporation of the ink solvent from the chip 5.

The rear end 4a of the tip plug 4 is
0 is fitted inside the front end of the tank 3. A large-diameter portion 4 protruding outward in the axial direction is provided at an intermediate portion in the axial direction of the stopper 4.
The large diameter portion 4b is fitted in the outer cylinder 2 and the stepped portion 2 provided on the inner peripheral surface of the outer cylinder 2 is provided.
a from behind. Thus, the tank 3 is fixed to the outer cylinder 2 via the plug 4.

As shown in FIG. 4, the large diameter portion 4b is formed with a communication hole 10 for guiding gas permeating the seal member 20 to the space around the chip 5. Although the shape and number of the communication holes 10 are not particularly limited, a plurality of fan-shaped holes are formed in the circumferential direction in the illustrated embodiment. The distal end side 4c of the tip plug 4 projects forward from the front surface of the large diameter portion 4b.

The ink supply valve 6 is a cylindrical metal or resin housing 11 having a valve seat at the inner surface of the tip opening.
(Valve chamber), a spherical valve body 12 held in the housing 11, a spherical flow regulating member 31 held in the housing 11 behind the valve body 12, and a flow regulating member 31
1 for urging the valve body 12 toward the valve seat through the
3 (biasing member).

The housing 11 is fitted inside the front end of the ink flow hole 9, and the rear end of the housing 11 is in contact with a step provided in the shaft halfway of the flow hole 9. Are held in the stopper 4. Thus,
The tip plug 4 serves as a holding member for the valve 6.

The housing 11 has the same structure as the tip of the ballpoint pen, that is, is constituted by a cylindrical body whose tip is reduced in diameter.
In addition, a space is provided in which the flow rate regulating member 31 is freely movable back and forth by a very small amount. Tapered valve seat 11a
Is configured. An opening 14 is provided in the valve seat 11 a at the tip of the housing 11. This opening 1
The diameter of 4 can be about 50% to 95% of the diameter of the valve body 12. Further, the outer diameter of the distal end of the cylindrical body constituting the housing 11 is smaller than the outer diameter of the rear end of the chip 5, and the valve body protrudes from the valve seat opening 14 to the front end at the center of the rear end of the chip 5. Twelve tips are abutted.

The internal structure of the valve housing 11 will be described in more detail. As shown in FIGS.
A convex portion 15 is formed at a predetermined position in the front-rear direction on the inner surface of the projection 1 so as to protrude radially inward. A plurality of the protrusions 15 are provided in the circumferential direction, and a slit penetrating back and forth is formed between the protrusions 15. The front side surface (lower side surface in FIGS. 3 and 5) of the convex portion 15 is tapered so as to be gradually inclined rearward toward the center of the shaft. It constitutes a seat. Note that the present invention does not necessarily require the convex portion 15 (seat), but also includes a case where the seat is not formed. Further, the structure of the seat may be an inward flange shape without a slit, or a structure in which a plurality of recesses are formed in the front surface of the flange in the circumferential direction.

A space is formed at the center of the plurality of projections 15, and the tip of the spring 13 is located in this space. A space is formed between the seat and the opening 14 so that the valve body 12 and the flow regulating member 31 can move slightly back and forth. When the valve body 12 is pushed backward by the tip 5, the opening is formed. 14 is opened and ink is supplied to the chip 5.

The amount of movement of the valve body 12 and the flow regulating member 31 from the state in which the valve body 12 closes the distal end opening 14 to the state in which the flow regulating member 31 comes into contact with the rear end seat (convex portion 15) is as follows. , 0.01 mm for a writing implement of the type of the illustrated embodiment.
０．５0.5 mm, more preferably 0.0
It can be designed in the range of 2 mm to 0.2 mm. In the case of an air-replacement type writing instrument in which the tank 3 has a bottomed cylindrical shape, the above-mentioned movement amount can be set to 0.1 mm to 2 mm, and more preferably, 0.1 mm to 1 mm.

Further, the diameter of the valve element 12 is
The inner diameter of the internal space (housing space of the valve element 12) of the housing 11 is formed to be slightly larger than the diameter of the flow rate regulating member 31. Therefore, the gap between the inner peripheral surface of the housing 11 and the outer surface of the flow regulating member 31 is smaller than the gap between the inner peripheral surface of the housing 11 and the outer surface of the valve element 12.
1 controls the amount of ink circulation to a very small amount.

The valve body 12 may be made of a resin, but is preferably made of a metal used in a normal ballpoint pen. The diameter of the valve element 12 can be 0.3 mm to 20 mm, and more preferably 0.6 mm to 2 mm. Similarly, the flow regulating member 31 can be formed of an appropriate material such as resin or metal.

The spring 13 is provided with a flow regulating member 31.
It is arranged behind. As the spring 13, a thin wire such as nylon tex or wire harness can be used, and a compression coil spring can also be used. The rear end of the spring 13 projects rearward from the rear opening of the housing 11, and the rear end of the spring 13 is engaged with a step provided in the middle of the communication hole 9 of the front plug 4. Further, the tip of the spring 13 is in contact with the flow regulating member 31 in the housing 11. Therefore, the valve element 12
Is controlled by the urging force of the spring 13.
Through the valve seat 11 of the housing 11.
a (peripheral edge of the opening 14), and a part of the distal end side of the valve body 12 protrudes forward from the opening 14.

The chip 5 is made of a known resin or fiber as a material, and oozes ink by capillary action or the like. The chips 5 may be all formed of a single material, or may be formed by joining a resin chip and a relay member of a fiber bundle. Also, a so-called brush pen type tip may be used, or a tip made of a thin metal tube may be used.

The tip of the tip 5 protrudes forward from the tip 2b of the outer cylinder 2 so that characters and the like can be written. The rear end of the tip 5 is connected to the valve 12 of the valve 6 described above. Abut. The tip 5 has a small-diameter shaft portion 5 on the tip side.
a and a large-diameter shaft portion 5b on the rear end side. This chip 5
The outer diameter of the large-diameter shaft portion 5b on the rear end side is smaller than the inner diameter of the outer cylinder 2, so that a space is formed between the rear end side of the chip 5 and the outer cylinder 2. . The space around the rear part of the tip 5 communicates with the distal end face of the seal member 20 via the communication hole 10 of the tip plug 4 described above.

Although the outer surface of the rear portion 5b of the chip 5 is exposed in the inner space of the outer cylinder 2, as described above,
Since the solvent of the ink filled therein evaporates and passes through the seal member 20 and fills the space inside the outer cylinder 2, the evaporation of the ink from the chip 5 can also be suppressed.

A cylindrical urethane foam 16 is built in the outer cylinder 2 behind the tip holding cylinder 2b. The urethane foam 16 has a function of absorbing excess ink supplied to the chip 5 and replenishing the chip 5 with ink when the ink of the chip 5 runs short. Further, the urethane foam 16 is engaged with a step between the small diameter portion 5a and the large diameter portion 5b of the chip 5, and has a function of lightly urging the chip 5 rearward.
The urging force of the urethane foam 16 is weaker than the urging force of the spring 13, and has a function of preventing the valve 6 from opening when not in use, and also suppressing rattling of the chip 5.

The ink tank 3 contains a coating liquid such as a water-based ink. Further, a closing member 8 is built in the ink tank 3. The closing member 8 in the illustrated example is composed of a float 8a made of rubber or resin, and a backflow preventing agent 8b such as boribene, which covers the outer surface of the float 8a.
The closing member 8 is located at a boundary portion on the rear end side of the ink, and the ink is sealed by the closing member 8. Closure material 8
Slides toward the tip stopper 4 as the ink is consumed. In addition, it is also possible to comprise the closing material 8 only with a backflow prevention agent.

A tail plug 7 is fitted to the rear end of the outer cylinder 2. The tail plug 7 has a lid 7a and a cylinder 7b protruding forward from the lid 7a. The cylindrical portion 7b has an outer diameter that just fits with the outer cylinder 2 and is airtightly fitted with the outer cylinder 2.

Next, the operation of the applicator 1 of this embodiment will be described. When the applicator 1 of the present embodiment is not used,
The valve body 12 is pressed against the opening 14 of the housing 11 by the spring 13 and the valve 6 is closed. Therefore, there is no supply of ink from the ink tank 3 to the chip 5. Further, the diameter of the rear end face of the chip 5 is two times larger than the diameter of the opening 14.
Since it is configured to be twice or more the size, it is highly reliable that the ink supplied from the opening 14 is impregnated into the chip 5,
Further prevention of ink fogging is achieved.

At the time of writing, the tip 5 is pressed by the writing pressure, and the force causes the valve body 12 and the flow regulating member 31 to move rearward to open the opening 14 of the housing 11. In addition,
In the present embodiment, the margin of movement of the valve element 12 is about 1 mm or less, and the force required for movement is about 100 g or less. Therefore, the user hardly feels that the tip has moved. Further, since the valve 6 is opened by writing pressure at the time of writing, it is not necessary to perform an operation of interrupting writing and strongly pressing the tip as in the related art.

In the applicator 1 of this embodiment, the tip plug 4
The front end of the front side portion 4c is located rearward of the front end of the valve body 12 protruding from the opening 14 of the valve 6 toward the front end, and at the front end side of the front end of the valve housing 11 (tubular body). I have.
With this configuration, when the tip 5 moves to the rear end side by writing pressure during writing, the outer peripheral portion of the rear end face of the rear portion 5b of the tip 5 abuts on the front end face of the tip plug 4, and the tip 5 moves further backward.
Regulates movement. Then, a pressure higher than the urging force of the spring 13 does not act on the center of the rear end face of the tip 5, and the writing pressure can be received by the tip plug 4.
The rear end of the chip 5 can be prevented from being crushed. Thus, the front side portion 4c of the tip stopper 4 forms a stopper for restricting the retraction of the tip 5 beyond a predetermined distance.

By the stopper 4c, the tip 5
Is prevented from retracting until it contacts the tip of the valve housing 11, and even when a large writing pressure acts on the tip,
Such a large pen pressure can be received by the stopper 4c, and it is possible to prevent the center portion of the rear end face of the chip from being crushed. Therefore, even when the writing implement 1 of the present embodiment is used somewhat rough, the ball chip valve 6 described above is used.
Can be guaranteed, and the durability can be improved.

The present invention is not limited to the above embodiment, and can be appropriately designed and changed. For example, the flow rate regulating member 31 is not limited to a spherical shape, and may be formed in a cylindrical shape as shown in FIG. In this case, the convex portion 15 constituting the seat of the valve element 12 is provided between the valve element 12 and the flow regulating member 31.
It is preferable that the flow regulating member 31 is provided with a rod-shaped projection 31 a penetrating the center space of the plurality of projections 15, and the tip of the projection 31 a is brought into contact with the rear surface of the valve element 12. Also, the shape and structure of the flow regulating member are as follows:
If the desired flow rate of the coating liquid can be obtained,
The shape is not limited to a sphere and a cylinder, and may be an appropriate form.
Further, the valve body is not limited to a ball, but may adopt a conical structure as used in a general fiber bundle pen.

[0047]

When the applicator of the present invention is not in use, the valve element in the valve chamber is pressed toward the opening of the valve chamber by the biasing means, so that there is no supply of a coating liquid such as ink. When the tip of the chip is pressed against paper or the like, the valve body is pushed up by the application pressure at the time of application, so that a small amount of the application liquid can be supplied to the chip. Therefore, the applicator according to the present invention does not have a coating liquid drips, and does not require an operation of stopping use to supply the coating liquid to the chip.

Further, in the applicator of the present invention, the flow rate regulating member is provided in the valve chamber separately from the valve body, so that the labor for processing does not increase and the processing of the coating liquid supply valve such as the valve chamber and the valve seat is performed. However, there is an advantage that the supply of an excessive coating liquid can be suppressed even when the viscosity of the coating liquid is low, while simplifying the process.

[Brief description of the drawings]

FIG. 1 is an overall longitudinal sectional view of an applicator according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a housing (valve chamber) of a coating liquid supply valve of the coating tool.
FIG. 4 is an enlarged vertical sectional view of a front end portion of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is an enlarged vertical sectional view of a tip portion of a coating liquid supply valve of the coating tool.

FIG. 6 is an enlarged longitudinal sectional view of a tip portion of a coating liquid supply valve of an application tool and a coating liquid supply device according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Free ink type writing implement (coating tool) 2 Outer cylinder (outer body) 3 Ink tank (tank) 4 Tip 5 Chip 6 Ink supply valve (Coating liquid supply valve) 9 Ink circulation hole (Coating liquid circulation hole) 11 Valve housing (Valve chamber) 13 Spring (biasing means) 14 Opening 30 Ink supply device (Coating liquid supply device) 31 Flow rate regulating member

Claims (6)

[Claims] 1. A tank containing a coating liquid, a coating liquid supply valve provided at a front end of the tank, the valve comprising a valve chamber having a valve seat opened at the front end, and the valve chamber. A valve body accommodated in the valve seat movably forward and backward, and a flow regulating member accommodated movably back and forth in the valve chamber behind the valve body, wherein the valve body is provided with a flow regulating member. Wherein the urging force of an urging member disposed at the rear of the application device is pressed against the valve seat via the flow rate regulating member. 2. A gap between the flow regulating member and the valve chamber is smaller than a gap between the valve body and the valve chamber when the valve body is separated from the valve seat. An application liquid supply device for an application tool according to claim 1. 3. The coating liquid supply device according to claim 1, wherein the valve body is a sphere, and the flow rate regulating member is a sphere having a larger diameter than the valve body. 4. The valve body according to claim 1, wherein the valve body is a sphere, and the flow regulating member is a cylinder having a larger diameter than the valve body.
3. The coating liquid supply device according to 1. 5. A pen tip is disposed on the tip side of a coating liquid supply valve of the coating liquid supply device according to claim 1, and a rear end of the tip is moved from a valve seat opening. An applicator characterized in that the applicator is brought into contact with the tip of a valve body protruding to the tip side and retreats the valve body by application pressure acting on the chip during use, thereby supplying a small amount of application liquid to the chip from the application liquid supply valve. . 6. The tank according to claim 5, wherein the tank has a cylindrical shape, and the tank is disposed in the outer cylinder, and a tip is attached to a tip portion of the outer cylinder so as to be able to retreat. Applicator.