KR101323691B1 - Pens equipped with a volatile ink - Google Patents

Abstract

The present invention relates to a writing implement having ink that disappears over time, comprising: a body having a stopper at one rear portion thereof, and a body having a release preventing unit installed at the front of the body; The main body is provided with a pen tip to be installed, a volatile ink accommodated in the pipe, a gel for preventing the volatile ink from coming into contact with external air inside the rear of the pipe, and a first packing fitted to the rear of the pipe. A plurality of pen modules inserted in the pen module; And a cap provided in the front or rear of the main body having a second packing therein, and detaching the cap. When the pen module is sequentially inserted in the longitudinal direction of the main body, the pen module disposed at the front is separated from the main body. The pen module patched at the rear side is prevented from being caught by the stopper of the main body and prevented from being separated from the main body, and disposed at the rear side to prevent air from entering the pen tip of the pen module disposed at the rear side. The pen tip of the pen module is inserted into the first packing of the pen module disposed in front of the pen module, and the cap is inserted into the main body so as to prevent air from flowing into the pen tip of the pen module disposed in the front of the pen module. It is achieved by a writing instrument with volatile ink characterized in that the nib portion is fitted in the second packing. Accordingly, it is possible to improve the memorization force, to recycle the collection of problem books or learning papers, etc., and to prevent the contamination due to the graffiti.

Description

Writing instrument with volatile ink {Pens equipped with a volatile ink}

The present invention relates to a writing implement having ink that disappears over time, and more particularly, by inserting a plurality of pens having different ink durations into one writing implement so that the written characters disappear after a certain time, The present invention relates to a writing tool having volatile ink that can be erased over time even by graffiti.

Common writing implements do not erase letters when they are written on paper. That is, when solving problems such as a problem book or a study paper, when using an indelible writing tool such as a ballpoint pen, there is a disadvantage in that the problem book or the study paper must be solved once and discarded. In other words, if the problem book needs to be solved repeatedly, such as the examinee, the problem book or study paper cannot be recycled, and a new problem book or study paper must be purchased every time, resulting in a financial burden.

Therefore, a writing tool such as a pencil or a pencil that can erase a letter written with an eraser is usually used, but this also causes a problem that the study paper is torn and damaged when the eraser is repeated several times.

In particular, children using these general writing instruments often draw a lot of graffiti on the walls or furniture, but the problem is that the house is dirty because it is not erased well.

The present invention has been proposed to solve the above problems of the prior art, it is possible to improve the memorization by having a plurality of pens written and sustained only for a certain period of time, and to improve the memorization, the collection of problem books or learning paper, etc. It is an object of the present invention to provide a writing implement having a volatile ink which can be prevented from becoming dirty.

In order to achieve the above object, the present invention provides a body having a stopper at a rear portion thereof, a body having a release preventing portion provided at the front of the body, a pipe, and a nib installed at the front of the pipe; And a volatile ink contained in the pipe, a gel for preventing the volatile ink from coming into contact with external air inside the rear of the pipe, and a first packing fitted to the rear of the pipe, to be inserted into the main body. A plurality of pen modules; And a cap provided with a second packing therein to be inserted into or detached from the front or rear of the main body.

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When the pen module is sequentially inserted in the longitudinal direction of the main body, the pen module disposed in front of the main body is prevented from being separated from the main body by being caught by the release preventing portion of the main body, and the pen module patched at the rear stops the main body. It is inserted into the first packing of the pen module disposed in the front of the pen module disposed in the front to prevent the separation from the main body to be caught in the pen module of the pen module disposed in the rear to prevent air from entering, Writing tool with volatile ink, characterized in that the nib portion of the pen module disposed in front of the pen module is inserted into the second packing to prevent air from entering the nib of the pen module disposed in the front of the pen module Is achieved by.

In addition, the volatile ink may include a caustic soda solution, caustic soda and thymolphthalein.

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In addition, the volatile ink may include 42 to 46 wt% caustic soda solution, 53 to 57 wt% caustic soda and 1 wt% thymolphthalein.

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In addition, the volatile ink may include 8 to 10% by weight of caustic soda solution, 89 to 91% by weight of caustic soda and 1% by weight of thymolphthalein.

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In addition, the caustic soda solution,

3 to 12 weight percent caustic soda and 88 to 97 weight percent water.

The present invention has the following effects.

First, by using a writing tool that disappears after a certain period of time the written handwriting by selecting the pen module that is suitable for them, there is an effect that can improve the learning efficiency as the memorization is improved.

Second, since the packing is used to block the contact between the outside air and the ink, there is an effect of preventing the ink from changing.

Third, there is no need to purchase writing tools for each ink duration, and since only the pen module used is purchased and used, the maintenance cost is reduced.

Fourth, since the writing disappears after a certain time, there is an advantage that can be recycled learning papers or problem books.

Fifth, it is effective to prevent the environment from being polluted by graffiti.

1 is a perspective view of a writing implement having a volatile ink according to an embodiment of the present invention.
2 is a cross-sectional view of a writing implement with volatile ink according to an embodiment of the present invention.
Figure 3 is an enlarged cross-sectional view of one pen module in the present invention.
4 to 7 is a cross-sectional view showing an operating state of the present invention.

The preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which the technical parts already known will be omitted or compressed for the sake of brevity.

1 to 7, the writing implement with volatile ink according to an embodiment of the present invention includes a main body 1, a pen module 2, and a cap 3.

The main body 1 has a substantially cylindrical shape and includes a body 12 and a separation prevention portion 11.

The body 12 has an approximately cylindrical opening at both ends thereof, and is formed with a stopper 121 protruding inwardly with elasticity at the rear circumference, and fitted into the fitting groove 33 of the cap 3 to be described later on the front circumference. The fitting protrusion 122 is formed to be. A description thereof will be described later.

The departure prevention part 11 is a substantially cylindrical shape, in which the front is inclined inward, and is formed of a rubber soft elastic material or the like, and is attached or fixed to the front of the body 12. Accordingly, when the pen module 2, which will be described later, is inserted into the body 12, the pen module 2 is prevented from being caught by the release preventing unit 11 and separated from the body 12. A description thereof will be described later.

The pen module 2 is composed of three sets of substantially writing instruments, and is inserted into the body 12, and includes a pipe 21, a nib 22, a volatile ink 23, and a gel 24. And a first packing 25.

The pipe 21 is formed in a substantially cylindrical shape to accommodate the volatile ink 23 and the gel 24, which will be described later, and an air hole 211 through which outside air flows is formed in the rear circumference thereof. A fixing protrusion 212 is formed to be fitted into the fixing groove 252 of the first packing 25.

The nib 22 is fitted in front of the pipe 21 and fixed, and the volatile ink 23 accommodated in the pipe 21 when writing is discharged.

The volatile ink 23 is injected into the pipe 21, and is composed of a caustic soda solution, caustic soda (sodium hydroxide), and thymolphthalein so that the writing disappears over time. Here, when caustic soda (sodium hydroxide) meets thymolphthalein, it turns blue, and when carbon dioxide is met in this state, it gradually disappears by chemical reaction. This is well known and a detailed description will be omitted.

The caustic soda solution may consist of 4-10 wt% caustic soda and 90-96 wt% water.

In addition, the volatile ink 23 is composed of 44 wt% caustic soda solution (4 wt% caustic soda and 96 wt% water), 55 wt% caustic soda (sodium hydroxide) and 1 wt% thymolphthalein. Can be configured. Accordingly, when writing with the volatile ink 23, the writing disappears after about 2 hours. Therefore, after about two hours, the letters or pictures written on the problem book or the study paper disappear, so that the problem book or the study paper can be solved again, and repeated learning is possible.

In addition, the volatile ink 23 is 9% caustic soda solution (5% caustic soda and 95% water), 90% caustic soda (sodium hydroxide) and 1% by weight thymolphthalein It may be configured as. Accordingly, when writing with the volatile ink 23, the writing disappears after about 6 hours. Therefore, after about 6 hours, the written words or pictures disappeared from the collection of problem books or study papers, and thus, the problem book or learning papers can be solved again and repeated learning is possible.

In addition, the volatile ink 23 is 9% by weight caustic soda solution (10% by weight caustic soda and 90% by weight water), 90% by weight caustic soda (sodium hydroxide) and 1% by weight thymolphthalein It may be configured as. Accordingly, when writing with the volatile ink 23, the writing disappears after about 9 hours. Therefore, after about 9 hours, the letters or pictures written on the problem book or the study paper disappear, so that the problem book or the study paper can be solved again, and repeated learning is possible.

The gel 24 is disposed behind the volatile ink 23 while the volatile ink 23 is injected into the pipe 21 so as to prevent the volatile ink 23 from coming into contact with the external air. Is injected. Accordingly, by preventing the volatile ink 23 from contacting the external air, the volatile ink 23 can be prevented from changing. Here, the gel 24 is well known to be used in a general aqueous pen and the detailed description thereof will be omitted.

The first packing 25 has a substantially stepped cylindrical shape, and a stepped insertion hole 251 is formed at a rear side thereof, and a fixing groove 252 into which the fixing protrusion 212 of the pipe 21 is fitted is formed around the pipe. The volatile ink 23 and the gel 24 are injected into the rear end 21 of the pipe 21 to be fixed. Accordingly, the front end of the nib 22 is inserted into the insertion hole 251 of the first packing 25 to prevent contact of the volatile ink 23 leaked from the nib 22 with external air. A detailed description thereof will be described later.

The cap 3 has a second packing in which a protrusion 31 is formed on the inner surface of the front side toward the rear side and a groove is formed in the protrusion 31 so that the cap 3 is inserted into the rear inside of the body 12 in a cylindrical shape having a substantially rear opening. (32) is installed, the rear inner groove is provided with a fitting groove 33 to be fitted with the fitting protrusion 122 of the main body 1 is fitted to the front of the body 12. Accordingly, when the cap 3 is inserted in front of the body 12, the fitting groove 33 of the cap 3 is fitted to the fitting protrusion 122 of the body 12, so that the cap 3 to the body 12 The volatile ink 23 and the external air, which are fixed and the front end of the pen nib 22 of the pen module 2 to be disposed in front of the body 12 are fitted into the second packing 32 and leak into the nib 22. Prevent contact

The pen module 2 described above may be formed by displaying a duration or displaying respective colors on the outer surface of each pen module 2 so that the duration of the volatile ink 23 can be checked from the outside. At this time, the body 12 may be formed transparent. Accordingly, the user can select and use the pen module 2 having a desired duration from the outside.

Hereinafter, a writing tool having a volatile ink according to an embodiment of the present invention will be described with reference to FIGS. 4 to 7.

The first pen module 2 is inserted into the main body 1 from the rear of the main body 1, and the second and third pen modules 2 are inserted. At this time, when the pen module 2 is inserted into the main body 1, the stopper 121 of the main body 1 opens outward, and when the pen module 2 passes the stopper 121, the stopper 121 returns to its original state. Is restored.

When the three pen modules 2 are all inserted into the main body 1, the first pen module 2 is caught by the release preventing portion 11 of the main body 1 and does not leave the main body 1, and the second pen The module 2 is fitted into the insertion hole 251 of the first packing 25, the front portion of the nib 22 is installed in the first pen module (2). And, the third pen module 2 is inserted into the insertion hole 251 of the first packing 25 installed in the second pen module 2, the front portion of the pen nib 22, the third pen module (2) The rear end is caught by the stopper 121 of the main body 1 and does not fall behind the main body 1.

When the three pen modules 2 are inserted into the main body 1 and fixed, the cap 3 is inserted into the front of the main body 1 so that the front part of the nib 22 installed in the first pen module 2 is closed. It fits into the 2nd packing 32 provided in (3).

At this time, in order to change the pen module 2 desired by the user, the cap 3 is pushed into the rear and the third pen module 2 moves forward while the first pen module 2 moves forward of the main body 1. Pushed out That is, part of the first pen module 2 protrudes while the separation prevention part 11 is opened.

When a part of the first pen module 2 protrudes from the main body 1, the user pulls the first pen module 2 to release the first pen module 2 from the main body 1.

After removing the first pen module 2 from the main body 1, the main body 1 is raised, and the second and third pen modules 2 are lowered by their own weight, and the cap 3 is removed from the main body 1. Depart from

After the cap 3 is detached from the main body 1, the first pen module 2 is pushed in from the rear of the main body 1. When repeatedly performed in this manner, the user can select and use a desired pen module 2.

When the pen module 2 is selected and written, the volatile ink 23 is consumed, and the gel 24 comes down with the water level of the volatile ink 23 lowered. At this time, the external air flows into the air hole 211 and the level of the volatile ink 23 and the gel 24 is lowered.

Therefore, the present invention is provided with a writing tool disappears writing after a certain time by selecting a pen module that is suitable for them, while improving the memorization power can increase the learning efficiency. In addition, by using the packing to block the contact between the outside air and the ink to prevent the ink change, there is no need to buy pens for each ink duration, only maintenance of the pen because you only need to buy used pen module This is reduced. In addition, the handwriting disappears over time, thereby reusing the workbook or the problem book, and preventing the environment from being polluted by graffiti.

In describing the present invention described above, even if the embodiment is different, the same reference numerals are used for the same configuration, and the description may be omitted as necessary.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Shall not be construed as being understood. Therefore, a person having ordinary knowledge in the technical field to which the present invention pertains may easily implement other forms of the present invention within the same scope as the above-described embodiments, or the present invention only by the description of the embodiments of the present invention. It will be possible to practice the invention in the same and equal range.

One; main body
11; Departure prevention part
12; Body
121; stopper
122; Snapping
2; Pen module
21; pipe
211; Air hole
212; Fixation projection
22; Nib
23; Volatile ink
24; Gel
25; First packing
251; parenthesis
252; Fixing groove
3; cap
31; projection part
32; 2nd packing
33; Fitting groove

Claims (5)

A main body having a body having a stopper at a rear portion thereof, and a detachment preventing part installed in front of the body;
A pipe, a nib installed in front of the pipe, volatile ink contained in the pipe, a gel for preventing the volatile ink from contacting external air inside the rear of the pipe, and a rear of the pipe. A plurality of pen modules inserted into the main body with a first packing fitted to the main body; And
Includes a cap having a second packing therein to be inserted into or detached from the front or rear of the main body;
When the pen module is sequentially inserted in the longitudinal direction of the main body, the pen module disposed in front of the main body is prevented from being separated from the main body by being caught by the release preventing portion of the main body, and the pen module patched at the rear stops the main body. It is inserted into the first packing of the pen module disposed in the front of the pen module disposed in the front to prevent the separation from the main body to be caught in the pen module of the pen module disposed in the rear to prevent air from entering, Writing tool with volatile ink, characterized in that the nib portion of the pen module disposed in front of the pen module is inserted into the second packing to prevent air from entering the nib of the pen module disposed in the front of the pen module .
The method according to claim 1,
The volatile ink,
A writing tool with a volatile ink, comprising a caustic soda solution, caustic soda and thymolphthalein.
The method according to claim 2,
The volatile ink,
A writing instrument with volatile ink, comprising 42 to 46 weight percent caustic soda solution, 53 to 57 weight percent caustic soda and 1 weight percent thymolphthalein.
The method according to claim 2,
The volatile ink,
A writing instrument with volatile ink, comprising 8 to 10 weight percent caustic soda solution, 89 to 91 weight percent caustic soda and 1 weight percent thymolphthalein.
The method according to any one of claims 2 to 4,
The caustic soda solution,
A writing implement with volatile ink, comprising 3 to 12 weight percent caustic soda and 88 to 97 weight percent water.

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