JP2002355602A - Applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an applicator of which the coating tip is increased in protruding length and improved in visibility at the time of coating even if the knock stroke of the coating tip is short. SOLUTION: In the applicator composed of a shaft in which a coating liquid is housed, an almost cylindrical coating tip holder arranged to the front of the shaft, a rod-shaped coating tip arranged to the leading end of the coating tip holder and a valve mechanism arranged to the rear in the coating tip holder and opened by the movement of the coating tip holder due to knock operation and constituted so that a plurality of vertical rib parts extending in a before and behind direction of the shaft so as to come into contact with the periphery of the coating tip are formed to the front of the inner surface of the coating tip holder, a stepped part is provided to the coating tip at the almost intermediate position thereof and a ring part is provided to the rear ends of the vertical rib parts of the coating tip holder at the movement completion position of the coating tip due to the knock operation and at the contact position with the stepped part of the coating tip and, further, a large number of studded communication hole parts are provided to the outer periphery of the ring part of the coating tip holder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator incorporating a coating liquid such as a paint, a paint, an ink, a correction liquid, a cosmetic, a medicine, a repair agent, and a coating agent.

[0002]

2. Description of the Related Art In a conventional applicator, a container having a built-in coating solution, a coating destination for applying the built-in coating solution to the front end of the container, and a cap that is easy to attach and detach to prevent drying and protect the coating destination. Is known. The applicator presses the applicator against the paper and retracts the applicator to open the valve energized by the coil spring located behind the applicator, so that the built-in applicator is applied to the applicator. A so-called application destination knock type applicator having a supply structure is known. An example of such a knock-on application device is disclosed in JP-A-2000-309188. The publication discloses a pen shaft main body 1 having an ink chamber 1a therein, a front shaft 2 having a base screwed to one end of the pen shaft main body, and a pen core 4 inserted into the front shaft 2. A valve stem 7 whose tip is in contact with the rear end of the pen core 4, a spring 8 for urging the valve stem 7 from behind, and a valve box that receives the rear end of the spring 8 and straddles the front end of the pen shaft main body 1 5, a valve seat body 6 provided with a valve seat portion 6a in front of the valve box 5, a sponge ink holder 7 covering a part of the pen core 4, and a pen core 4
There is disclosed a liquid writing instrument in which a cap 3 for protecting the liquid writing instrument is combined.

[0003]

In the above-mentioned liquid writing implement, when the pen core 4 is pressed vertically against the paper surface or the like, the pen core 4
Is pushed down to the front end of the front shaft 2, and the front end of the front shaft 2 also contacts the paper surface. That is, the length from the front end of the tip shaft 2 to the tip of the pen core 4 is the knock stroke of the pen core 4, and this length is the length of the pen core 4 exposed from the front end of the tip shaft 2. . If the knock stroke of the pen core 4 is to be shortened in order to suppress the discharge amount of the coating liquid or to prevent an operational feeling with a long knock stroke, the length of the application tip will also be shortened. There is a problem in that if the user holds the device in a hand and tries to apply it obliquely, the visibility of the application destination is reduced. An object of the present invention is to provide an applicator having a long applicator tip length and a good applicability of the applicator at the time of application, even if the knock stroke of the applicator is short.

[0004]

According to the present invention, there is provided a shaft containing a coating solution, a substantially cylindrical coating destination holder disposed in front of the shaft, and a rod-shaped coating destination disposed at the tip of the coating destination holder. A plurality of valves extending in the axial front-rear direction so as to be in contact with the periphery of the application destination in front of the inner surface of the application destination holder. In a coating tool having a vertical rib portion, a step portion is provided at a substantially intermediate position before and after the coating destination, and the coating is performed at a rear end of the vertical rib portion of the coating destination holder at a coating end movement end position by a knocking operation. An application tool characterized in that a ring portion is provided at a position where it comes into contact with the previous step portion, and further, a large number of communication holes are provided on the outer peripheral surface of the ring portion of the application destination holder. And

[0005]

1 to 3 show a first embodiment. FIG. 1 shows a vertical sectional view of a main part of the applicator, FIG. 2 shows a vertical sectional view of an application destination holder 3, and FIG. 3 shows a top view of FIG. Reference numeral 1 in FIG. 1 is a bottomed cylindrical rear shaft having an open front end. The inside of the rear shaft 1 is a coating liquid storage chamber. At the opening of the rear shaft 1, a substantially cylindrical front shaft 2 penetrating in the front-rear direction is attached so as to be screwed to the rear shaft 1. The front shaft 2 is formed of a single cylindrical front cylindrical portion 2a at the front and a double cylindrical outer cylindrical portion 2b and inner cylindrical portion 2c at the rear. A flat portion is provided from the tip of the inner cylindrical portion 2c toward the axis, and the axis of the flat portion is open. A valve seat 2d is provided so as to extend in a funnel shape from the rear end of the opening to the rear. A substantially cylindrical coating destination holder 3 that penetrates forward and backward is attached to the front end opening of the front shaft 2 so as to protrude from the front end of the front shaft 2.

[0006] A coating destination 4 having a coating liquid deriving action is inserted into the tip end opening of the coating destination holder 3. The application destination 4 is formed of a fiber bundle such as an acrylic fiber, a polyester fiber, a nylon fiber, a rayon-based fiber, or a molded body of a urethane-based resin, a polyester-based resin, a nylon-based resin, or the like. Through a step portion 4a having a step shape at a substantially intermediate position, the front portion is an enlarged diameter portion 4b and the rear portion is a reduced diameter portion 4c.

[0007] The application destination holder 3 is substantially cylindrical, and has a funnel-like shape at a substantially middle position in the front-rear direction, and further has a large-diameter portion formed in a cylindrical shape whose diameter increases rearward. On the inner surface of the application destination holder 3, there is provided a vertical rib portion 3 a in which eight ribs protruding toward the axial center are radially arranged from the front end toward the rear. A ring-shaped ring portion 3b having a rectangular vertical section and being perpendicular to the axis is provided so as to be continuously provided from the rear end of the vertical rib portion 3a. The longitudinal ribs 3 are provided on the outer periphery in front of the ring portion 3b so as to penetrate in the outer peripheral direction from the axis.
Eight communication holes 3c are provided between the holes a. Therefore, the ring portion 3b of the application destination holder 3 is provided in a suspended manner so as to straddle the communication hole portion 3c and to be continuously connected by the vertical rib portion 3a.

[0008] Ring portion 3 on the rear inner surface of the coating destination holder 3
b, an elastic porous body 6 made of a sponge, a urethane material, or the like, which is formed of a cylindrical porous and continuous pores.
Has been arranged. A coating destination 4 is provided on the front of the elastic porous body 6.
Is inserted.

A spring portion 5a having a resilient function and a valve portion 5 which is a component of the valve mechanism are provided inside the inner cylindrical portion 2c of the front shaft 2.
b is provided. The rear end of the spring valve 5 is unevenly connected to the rear end of the inner cylindrical portion 2c of the front shaft 2. The front end of the spring valve 5 is provided with a front cylindrical portion 5c having a closed front end.
A valve portion 5b having a spherical surface is provided behind the front cylinder portion 5c, and the valve portion 5
b, a middle cylinder portion 5d having an enlarged diameter is provided rearward. The valve portion 5b urged by the spring portion 5a of the spring valve 5 is brought into pressure contact with the valve seat portion 2d of the front shaft 2 to form a valve mechanism that can be opened and closed.

Reference numeral 7 denotes a cap having a clip function. When not in use, the cap 7 is formed so as to be fitted to the front shaft 2 in order to protect the application destination 4 and prevent drying.

When the coating liquid contained in the coating device is a sedimentation-separable liquid such as a pigment liquid, the sediment is re-stirred.
A stirring member such as a sphere or a rod may be arranged in the rear shaft 1. Although the application destination of the present applicator is illustrated as a rod, it may be a prismatic so-called square core.

The operation and effect of the first embodiment will be described. When the application part of the applicator is repeatedly pressed against the paper surface several times against the spring part of the spring valve, the valve mechanism opens and closes repeatedly, and the application liquid built in the rear shaft flows out to the elastic porous body. I do. The coating liquid permeates the elastic porous body, and also penetrates from the rear end of the coating destination to the front. After the coating liquid has sufficiently penetrated to the front end of the coating destination, it can be coated on paper or the like.

Here, the discharge state of the application liquid when the application liquid stored in the elastic porous body or the application destination is applied to the paper surface or the like will be examined. The coating liquid moves from the application destination to the paper surface when it is applied to the paper surface. When the application liquid stored in the application destination is consumed, the application liquid stored in the elastic porous body moves to the application destination. In response to the movement of the application liquid, the outside air passes through the communication hole from the gap between the vertical rib portion of the application destination holder and the application destination (air circulation portion) and enters the continuous pore portion of the elastic porous body. The communication holes of the application destination holder are provided at eight places and are dispersed in a large number.
When returning air to the elastic porous body, if the return of air is hindered, the discharge will decrease, and in the case of continuous application, the phenomenon that the amount of discharge continues to decrease (the discharge unevenness phenomenon) will periodically decrease. This is to prevent occurrence. In other words, even if several places of the communication holes at the application destination are closed with the coating liquid, if at least one opening is open, the flow of air is smooth and the discharge of the coating liquid to the paper surface is stabilized. Further, the communication hole portion of the coating destination holder is provided on the outer periphery of the ring portion because the total area of a plurality of portions of the communication hole portion is between the reduced diameter portion of the coating destination and the inner surface of the ring portion of the coating destination holder. The reason for this is that it is provided with a larger area than that provided at another site. The wider the air circulation portion is, the smoother the air exchange becomes, and the more the uneven discharge can be suppressed.

Next, as to the application start length and knock stroke of the application destination, as shown in FIG. 1, the application start length (P) is determined by the step of the application destination and the ring portion of the application destination holder. It is provided independently of the knock stroke (Q), which is the length between them. That is, even if the knock stroke (Q) is shortened, the coating advance length (P) can be arbitrarily increased, and the visibility of the coating destination can be improved.

4 to 8 show a second embodiment. FIG. 4 is a front vertical sectional view of a main part of the applicator, and FIG.
3 shows a vertical sectional view, FIG. 6 shows a bottom view of FIG. 5, and FIG.
5 shows an AA section of FIG. 5, and FIG. 8 shows a BB section of FIG. FIG. 3 of the first embodiment also corresponds to the present embodiment,
FIG. 6 also shows a top reference diagram of FIG. 5. The rear shaft 1, the front shaft 2, the application destination 4, the spring valve 5, and the cap 7 are the same as in the first embodiment. Reference numeral 13 in FIG. 4 is a substantially cylindrical application destination holder. External shape of coating destination holder 13, vertical rib 3
a and the ring portion 3b are the same as in the first embodiment. From the outer periphery of the ring portion 3b of the coating destination holder 13 toward the front,
A communication hole portion 13c is provided between the vertical ribs 3a so as to penetrate the shaft from the axial center in the outer peripheral direction. A thin plate portion 13d in which twelve thin plates protruding toward the axial center are radially arranged from the rear to the front is provided on the inner surface of the enlarged diameter portion behind the coating destination holder 13. Between the thin plates of the thin plate portion 13d, the vertical groove portions 1 are formed so as to form a vertical groove forming a capillary groove.
3e is provided. The axial center side of the thin plate portion 13d is provided so as to be close to the periphery of the reduced diameter portion of the application destination 4. The vertical groove 13e is provided so as to have a coating liquid occlusion function as a whole. The communication holes 13c are provided between the vertical ribs 3a, and are provided at 12 positions where the vertical grooves 13e are formed.

The operation and effect of the second embodiment will be described. The operation and effect are substantially the same as those of the first embodiment, but in addition, since the vertical groove portion having the coating liquid absorbing function is integrally provided in the coating destination holder, there is no need to separately provide an elastic porous body. Is also good. Since the elastic porous body is soft and easily deformed, when it is assembled in a crushed state, the ink holding function is not performed, so that the continuous writing distance may be shortened. However, in this embodiment, since the elastic porous body does not need to be separately provided, the assembling work of the applicator is more,
It will be easier.

FIG. 9 shows a third embodiment. FIG. 9 is a front vertical sectional view of a main part of the applicator. Reference numeral 24 denotes a substantially rod-shaped application destination. The application destination 24 is formed by a stepped portion 24a having a stepped shape at the front side of the substantially middle position, a front portion having a reduced diameter portion 24b, a rear portion having an enlarged portion 24c, and a rear end having an enlarged portion 24c. It is provided so as to become the rear reduced diameter portion 24d via a step portion having a step shape. Behind coating destination 24, coating destination 2
A substantially cylindrical penetrating holder 23 that penetrates in the front-rear direction is provided so that part 4 is projected and inserted into the center. The application destination holder 23 is composed of a conical cylindrical portion 23f, a small-diameter cylindrical portion 23g, and a large-diameter cylindrical portion 23h from the front to the rear. On the inner surface of the conical cylindrical portion 23f of the coating destination holder 23, there is provided a vertical rib portion 23a in which a plurality of ribs protruding toward the axial center are radially arranged from the front end toward the rear. The vertical cross section is rectangular so as to be continuously provided from the rear end of the vertical rib portion 23a,
A ring portion 23b that is perpendicular to the axis is provided. A communication hole portion 23c is provided between the vertical ribs 23a so as to penetrate the ring portion 23b from the outer circumference toward the front from the outer circumference to the front. Therefore, the application destination holder 23
Ring portion 23b straddles the opening portion 23c,
It is provided continuously in the vertical rib portion 23a and suspended in the air.

A thin plate portion in which a plurality of thin plates are radially arranged is provided outward and rearward of the ring portion 23b of the coating destination holder 23. A vertical groove 23e is provided between the thin plate portions so as to form a vertical groove forming a capillary groove. The axial side of the thin plate portion is provided so as to be close to the periphery of the enlarged diameter portion of the application destination 24. The plurality of vertical grooves 23e are provided so as to have a coating liquid occlusion function as a whole. still,
The application destination holder 23 of the present embodiment is the one in which the application destination holder 3, the front shaft 2, and the rear shaft 1 of the first embodiment are provided substantially integrally.

A valve rod 25, which is entirely rod-shaped, is provided on the rear side following the application destination 24. A hole is provided in the front end of the valve stem 25, and the rear end of the application destination 24 is inserted. The outer shape of the valve stem 25 is provided with a flange-shaped portion at the front end, provided so as to narrow the rear portion of the flange-shaped portion into an inverted conical shape, provided with a cylindrical portion at the rear thereof, and formed with an inverted conical shape at the rear of the cylindrical portion. And a rod-shaped portion is provided behind the inclined portion. The portion of the valve stem 25 that is narrowed in an inverted conical shape behind the flange portion is provided so as to form the valve portion 25b.

A substantially cylindrical valve receiving body 28 is provided so as to surround the front of the valve stem 25. Valve receiver 2
The valve seat 8 is provided with a valve seat 28a that is narrowed in an inverted conical shape from the front end of the inner surface toward the rear. At the rear of the valve stem 25, a cylindrical valve stem receiver 30 is provided so as to insert and couple the rod-shaped portion behind the valve stem 25. A coil spring 29 is provided between the rear end of the valve receiving body 28 and the front end of the valve stem receiving portion so as to accommodate the rod-shaped portion of the valve stem 25 in the rearward direction. By bringing the valve portion 25b of the valve rod 25 into pressure contact with the valve seat 28a of the valve receiver 28, a valve mechanism that can be opened and closed is provided. Although not shown in the figure, a knock operation unit is provided at the rear.

The operation and effect of the third embodiment will be described. In the present embodiment, by knocking the rear knock operating portion (not shown), the valve stem connected to the valve stem receiver is pushed forward, the valve stem is separated from the valve receiver, and the valve is opened. The function and effect are substantially the same as those of the second embodiment, however, in addition, since the knocking operation is performed not by directly contacting the application destination on the paper surface but by the knocking operation unit at the rear,
The present invention can also be applied to an applicator using a tip made of a large number of straight fibers that are soft and easily deformed. In order to apply a soft coating destination to the present embodiment, a cylindrical member having a hard step may be provided around the intermediate position before and after the coating destination. Furthermore, in this embodiment, since the knock stroke can be shortened arbitrarily, even if the knock operation is performed accidentally with the cap attached, the front end of the coating destination does not contact the front end of the inner surface of the cap, and the front end of the coating destination is not damaged. It can also be done.

[0022]

According to the applicator of the present invention, even if the knock stroke of the application destination is shortened, the length of the application advance can be set arbitrarily and long, so that the visibility of the application destination is improved. I can do it.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a main part of a first embodiment.

FIG. 2 is a longitudinal sectional view of a coating destination holder of the first embodiment.

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a vertical sectional view of a main part of the second embodiment.

FIG. 5 is a longitudinal sectional view of a coating destination holder according to a second embodiment.

FIG. 6 is a bottom view of FIG. 5;

FIG. 7 is a sectional view taken along line AA of FIG. 5;

8 is a sectional view taken along line BB of FIG. 5;

FIG. 9 is a front vertical sectional view of a main part of the third embodiment.

[Explanation of symbols]

 Reference Signs List 1 rear shaft 2 front shaft 3 coating destination holder 13 coating destination holder 23 coating destination holder 3a vertical rib portion 23a vertical rib portion 3b ring portion 23b ring portion 3c communication hole portion 13c communication hole portion 23c communication hole portion 13d thin plate portion 13e vertical groove portion 23e Vertical groove part 23f Conical cylindrical part 23g Small diameter cylindrical part 23h Large diameter cylindrical part 4 Application destination 24 Application destination 5 Spring valve 25 Valve stem

Claims (2)

[Claims] 1. A shaft containing a coating liquid, a substantially cylindrical coating destination holder disposed in front of the shaft, a rod-shaped coating destination disposed at the tip of the coating destination holder, and a rear end in the coating destination holder. And a plurality of longitudinal ribs extending in the axial front-rear direction so as to be in contact with the periphery of the application destination in front of the inner surface of the application destination holder. In the applicator, a step portion is provided at a substantially middle position before and after the application destination, and the rear end of the vertical rib portion of the application destination holder is brought into contact with the step portion of the application destination at an application destination movement end position by a knocking operation. A coating part, wherein a ring portion is provided at a position, and a plurality of communication holes are provided on the outer peripheral surface of the ring portion of the coating destination holder. 2. The applicator according to claim 1, wherein the applicator holder has a vertical groove portion formed of a large number of grooves behind the ring portion.