JP2003048396A - Applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an applicator, in which the flowing of a coating liquid into the temporarily storage member of the coating liquid is prevented from developing and, at the same time, the supplying of the coating liquid can be smoothly performed even when the applicator itself is held in a horizontal posture irrespective of the remaining amount of the coating liquid in a liquid storage tank. SOLUTION: In the applicator having an inductive lead 3 for inducing the coating liquid i in the liquid storage tank 6 to a coating part 2 and the temporarily storage member 4 of the coating liquid formed by arranging a plurality of comblike teethed bodies 4a, etc., having air liquid displacing grooves 4b and 4b shown in Fig. 3 to the axis direction of the inductive lead with gaps, the coating liquid i in the liquid storage tank 6 is held by capillarity in the gaps and a gap formed by arranging a coating liquid retaining plate 50 opposite to the rear end face 4c of the temporarily storage member 4 of the coating liquid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator including a marker pen, a correction pen, a make-up tool, etc., which uses a coating liquid such as oil-based ink, a correction liquid or a cosmetic.

[0002]

2. Description of the Related Art Conventionally, as an applicator for a so-called marker pen or the like, for example, an induction core for guiding ink in an ink tank formed in a barrel to a pen tip, and a plurality of disc-shaped comb teeth It is known to have a temporary ink storage member that is formed with a gap in the axial direction of the induction core.

Each of the comb tooth bodies has two members for guiding and storing the ink in the ink tank to the temporary ink storage member.
Two center slits are formed on both sides of the induction core, and the ink that flows out of the ink tank is temporarily stored in the temporary ink storage member when the internal pressure in the space of the ink tank rises through these center slits. It is stored in.

[0004]

By the way, when the remaining amount of ink in the ink tank falls below a certain level, when the conventional applicator is placed in a horizontal position, of the two center slits formed in the temporary ink storage member, Only one may be soaked in ink.

In this state, air is circulated between the ink tank and the temporary ink storage member through the other center slit which is not immersed in the ink, and as a result,
There is a drawback that the ink in the ink tank flows into the temporary ink storage member regardless of the pressure change in the ink tank, and the original function of the temporary ink storage member cannot be exhibited.

The circulation of the air is not limited to the above-described one in which two center slits are formed, and even if a single center slit is formed, the whole center slit is not immersed in the ink. Sometimes it happens.

Therefore, the present invention prevents the application liquid from flowing into the temporary application liquid storage member even when the applicator itself is placed in a substantially horizontal position, regardless of the amount of the application liquid remaining in the liquid storage tank.
Moreover, it is an object of the present invention to provide an applicator that can smoothly supply the coating liquid.

[0008]

To achieve the above object, the present invention has the following constitution. That is, the present invention is
Coating having an induction core that guides the coating liquid in the liquid storage tank to the coating portion, and a temporary coating liquid storage member in which a plurality of comb teeth having gas-liquid exchange grooves are arranged with a gap in the axial direction of the guiding core. In the device, a gap for holding the coating liquid in the liquid storage tank by a capillary phenomenon is held, and a coating liquid holding plate is opposed to the rear surface of the temporary liquid coating liquid storage member facing the liquid storage tank. It is characterized by having been placed.

According to this structure, the coating liquid can be held between the temporary coating liquid storage member and the coating liquid holding plate.
The gas-liquid exchange groove of the comb tooth body is dipped in the application liquid to be closed, and the circulation of air through the gas-liquid exchange groove can be prevented.
Therefore, the coating liquid does not flow into the temporary coating liquid storage member, and the coating liquid can be smoothly guided to the temporary coating liquid storage member.

By forming the coating liquid holding plate integrally with the holder for holding the induction core, the molding can be easily performed and the cost can be reduced.

In the liquid storage tank, a holder is provided with a coating liquid replenishing portion for replenishing the induction liquid with the coating liquid retained between the coating liquid retaining plate and the temporary coating liquid storage member. Even when the coating liquid of 1 is not in contact with the induction core, the supply of the coating liquid to the induction core can be continued.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. 1 is a longitudinal sectional view of the entire writing instrument according to one embodiment of the applicator of the present invention, FIG. 2 is an enlarged sectional view of a portion indicated by an encircling line I in FIG. 1, and FIG. 3 is II-II in FIG.
It is sectional drawing of the part shown with a line.

Writing implement A according to one embodiment of the applicator of the present invention
The user grips the outer peripheral surface of the shaft cylinder 1 at the time of writing, and slides the front end of the pen core 3 which also serves as an induction core of the writing section 2 which is an example of the application section on a target surface (not shown) such as a sheet surface, The coating liquid i such as raw ink is supplied and applied from the pen core 3 to the target surface for writing, and has the following configuration.

The shaft cylinder 1 is a substantially cylindrical body having an opening 1a formed at the front end and a closed rear end, and the inner wall surface 1b near the opening 1a has a writing portion which will be described in detail later. A fitting groove portion 1c for positioning and fixing 2 is formed, and a fitting groove portion 1d for positioning and fixing the temporary coating liquid storage member 4 is formed on the rear side thereof over the entire circumference.

The writing section 2 is composed of a holder 5, the pen core 3 and the temporary coating liquid storage member 4, and the writing section 2 is fitted and fixed to the opening 1a of the barrel 1. In the inner space of the barrel 1 on the rear side of the coating liquid i
The liquid storage tank 6 for storing the As the coating liquid i, correction liquid or cosmetics can be applied in addition to the above raw ink.

The holder 5 has a circular fitting plate having an outer diameter which is closely fitted to the fitting groove portion 1c of the shaft cylinder 1 near the front end of a cylindrical pen core fitting insertion portion 5a having a front end and a rear end opened. 5b
In addition, the inner wall surface 1 of the shaft cylinder 1 which is also circular in
The coating liquid retaining plate 5c is formed to have an outer diameter having a required gap between the plate 5c and b.

On the side wall of the pen core insertion portion 5a, at a position facing a gap α formed between a thick plate 4a 'of a temporary coating liquid storage member 4 and a coating liquid holding plate 5c which will be described later. A coating liquid replenishing port 5d which is a coating liquid replenishing portion for replenishing the pen core 3 with the coating liquid i retained in the gap α is formed. Reference numeral 5e designates a circular partition plate formed on the rear side of the fitting plate 5b with a slight distance between them, and 5f designates a comb-tooth body 4a ... Is a ventilation hole that communicates with the center slits 4b, 4b, ...

The pen core 3 is a pen core fitting insertion portion 5 of the holder 5.
It is formed in a cylindrical shape slightly longer than the entire length of a, the pen tip 3a is formed to be tapered at the front end portion, and the cylindrical small-diameter portion 3b is formed at the rear portion. Such a pen core 3 can be formed of, for example, a fiber bundle core, a resin molding core, or a porous molding core.

A step portion 5a 'for contacting a step surface 3c formed at the boundary between the pen core 3 and the small diameter portion 3b projects inwardly on the inner wall surface of the pen core insertion portion 5a. When the step surface 3c of the pen core 3 is brought into contact with the step portion 5a ', the pen tip 3a of the pen core 3 projects forward of the pen core fitting insertion portion 5a, and the pen core 3 Small diameter part 3
b is positioned and fixed in a state of protruding to the rear of the coating liquid holding plate 5c.

The temporary coating liquid storage member (collector) 4 includes a plurality of disc-shaped comb tooth bodies 4a, ..., And a thick plate body 4a 'in the pen core axial direction (the shaft cylinder 1 and the temporary coating liquid storage member 4). (Also in the axial direction), a so-called comb tooth-shaped molded body formed by stacking with a required gap held between each other. The length between the coating liquid holding plate 5c and the partition plate 5d of the holder 5 is It is formed with a slightly short overall length.

Each of the comb tooth bodies 4a, ...
Center slits 4b, 4b are formed on both sides of the pen core fitting insertion portion 5a of the holder 5, and an amount of the coating liquid i corresponding to a pressure change in the liquid storage tank 6 is applied to the comb tooth body 4a.
The temporary storage function of the coating liquid i can be exerted by inflowing and discharging between the thick plates 4a '.

The holder 5 having the pen core 3 and the temporary coating liquid storage member 4 fitted therein is inserted into the barrel 1 from the opening 1a.
When inserted into the inside, the fitting plate 5a of the holder 5 is inserted into the fitting groove portion 1
It is fitted to c and positioned and fixed.

The temporary coating liquid storage member 4 is positioned and fixed by fitting the thick plate 4a 'arranged closest to the liquid storage tank 6 into the fitting groove 1d in the barrel 1. . As a result, the rear surface 4c of the temporary coating liquid storage member 4 facing the liquid storage tank 6 is held by holding the gap α in which the coating liquid i in the liquid storage tank 6 is retained by the capillary phenomenon.
Then, the coating liquid holding plate 5c is placed so as to face it.

In other words, the end face of the thick plate member 4a 'arranged closest to the liquid storage tank 6 of the temporary coating liquid storage member 4, and
The coating liquid i is held in the gap α formed between the side surface of the coating liquid holding plate 5c and the side surface of the coating liquid holding plate 5c which faces the plate α.

The operation of the writing instrument A according to one embodiment of the applicator of the present invention having the above structure will be described. When the writing instrument A is placed in a substantially horizontal position with the remaining amount of the coating liquid in the liquid storage tank 6 being less than a certain limit, the temporary coating liquid storage member 4
Of the center slits 4b, 4b formed in the thick plate 4a 'arranged closest to the liquid storage tank 6, only one of the center slits 4b, 4b is immersed in the coating liquid i. However, in the writing instrument A of the present invention, Gap α between the coating liquid holding plate 5c and the thick plate 4a ′
Then, the coating liquid i in the liquid storage tank 6 is sucked up by the capillary phenomenon. As a result, the coating liquid i is held between the opposing side surfaces of the coating liquid holding plate 5c and the thick plate 4a 'of the temporary coating liquid storage member 4, and the center slit 4b of the thick plate 4a' is held. , 4b are soaked (coated) by the coating liquid i.

Therefore, unlike the conventional case, the circulation of the above-mentioned air through the center slit 4b which is not immersed in the coating liquid i is not generated, so that the coating liquid i in the liquid storage tank 6 is temporarily stored in the coating liquid storage member. It never flows into 4.

Even when the coating liquid i in the liquid storage tank 6 does not contact the pen core 3, the coating liquid i held between the temporary coating liquid storage member 4 and the coating liquid holding plate 5c is ,
The pen core 3 is continuously replenished through the coating liquid replenishing port 5d of the coating liquid holding plate 5c. As long as the coating liquid i remains in the liquid storage tank 6, a gap α between the thick plate 4a ′ of the temporary coating liquid storage member 4 and the coating liquid holding plate 5c is filled with the coating liquid due to the capillary phenomenon. Since the supply (sucking) is continued, the blurring at the time of writing does not occur until the coating liquid i in the liquid storage tank 6 is exhausted.

The present invention is not limited to the above-described embodiment, but the following modifications can be made. In the above, the example in which the coating liquid holding plate and the holder are integrally formed has been described, but they may be formed separately.
In the above description, the coating liquid holding plate having two center slits has been described as an example, but a single center slit is also applicable.

Further, in the present embodiment, as a temporary coating liquid storage member, a plurality of comb-teeth shaped bodies are formed in a comb-shaped cross-section by stacking the comb-teeth bodies in the pen core axial direction with a required gap therebetween. However, it is also possible to employ a so-called sheet-shaped body in which a plurality of sheet bodies are stacked in the pen core axis direction at predetermined intervals.

[0030]

According to the inventions of claims 1 to 3, since the coating liquid can be held between the rear surface of the temporary coating liquid storage member and the coating liquid holding plate, the inside of the liquid storage tank can be held. Regardless of the remaining amount of the coating liquid, the gas-liquid exchange groove can be immersed in the coating liquid to close it. Therefore, air is not circulated through the gas-liquid exchange groove that is not immersed in the coating liquid, so that the coating liquid does not flow into the temporary coating liquid storage member. Further, since the coating liquid can be sucked up and held between the rear surface of the temporary coating liquid storage member and the coating liquid holding plate, even if the remaining amount of the coating liquid in the liquid storage tank is small, the temporary coating can be performed. The application liquid can be smoothly guided to the liquid storage member.

In addition to the common effects obtained by the inventions described in claims 1 to 3, according to the invention described in each claim, the following respective effects can be obtained. According to the second aspect of the present invention, since the coating liquid holding plate is integrally formed with the holder for holding the induction core, it is not necessary to separately form them, and the cost is reduced. be able to.

According to the third aspect of the present invention, the holder is provided for replenishing the holder with the coating liquid retained between the coating liquid retaining plate and the rear surface of the temporary coating liquid storage member. Since the coating liquid replenishing portion is formed, the coating liquid can be continuously replenished to the induction core even when the coating liquid in the liquid storage tank does not contact the induction core.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an entire writing instrument according to an embodiment of the applicator of the present invention.

2 is an enlarged cross-sectional view of a portion indicated by an encircling line I in FIG.

FIG. 3 is a sectional view of a portion taken along line II-II in FIG.

[Explanation of symbols]

2 Writing part related to one example of application part 3 Pen core that doubles as an induction core 4 Temporary coating liquid storage member 4b Center slit which is a gas-liquid exchange groove 4c Gosuimen 5 holder 5c Coating liquid holding plate 5d Coating liquid replenishment port which is the coating liquid replenishment section 6 liquid storage tank i Coating liquid such as raw ink

Claims (3)

[Claims] 1. A temporary coating liquid reservoir in which a guiding core for guiding the coating liquid in a liquid storage tank to a coating portion and a plurality of comb-tooth bodies having a gas-liquid exchange groove are arranged with a gap in the axial direction of the guiding core. In a coating tool having a member, a gap for holding the coating liquid in the liquid storage tank by a capillary phenomenon is retained, and a storage liquid is retained on the rear surface facing the liquid storage tank of the temporary coating liquid storage member. An applicator characterized in that the plates are arranged facing each other. 2. The applicator according to claim 1, wherein the stored liquid holding plate is integrally formed with a holder for holding the induction core. 3. The holder is provided with a stored liquid replenishing portion for replenishing the guide liquid with the stored liquid held between the stored liquid holding plate and the temporary stored liquid storage member. The applicator according to 1 or 2.