KR950004081Y1 - Pen with ink reservior - Google Patents

Abstract

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Description

Writing utensils

1 is an explanatory view of a main portion sectional view showing the configuration of an embodiment of the present invention writing instrument.

* Explanation of symbols for main parts of the drawings

10 pen 10a writing unit

20: ink guide core 30: pen nib

30A: pen body pen nib 30B: ink guide core pen nib

31: ink distribution groove 32: ink distribution groove

40: ink containing portion

The present invention relates to a writing instrument, and more particularly, to a writing instrument that uses a low viscosity ink having a low viscosity to prevent the ink from remaining at the front end of the pen body.

In the case of the ink writing method of the writing instrument which uses ink recently, when the internal pressure of the ink accommodating part is lowered as the ink is consumed by writing, air is automatically supplied into the ink accommodating part in accordance with the consumption amount of the ink. You can continue writing. When the internal pressure of the ink receiving portion becomes high due to the increase of the temperature during writing and the ink is supplied more than necessary, the excess ink temporarily stays in the pen nib, and when the internal pressure of the ink containing portion decreases and normalizes, The remaining ink which has remained is automatically returned to the ink containing portion.

However, in the above-described conventional writing implements, the supply and return of necessary inks in response to changes in the internal pressure of the ink-swimming part due to various causes may be hindered, and in particular, viscous, such as maca penning, pen pent pen, and sipen. In writing instruments using this low ink, due to an increase in the internal pressure of the ink receiving portion due to a temperature rise during writing, the excessively supplied ink is not temporarily suspended in the pen core, but light is supplied to the pen body so that ink is accumulated at the tip of the pen core. The writing state could not be maintained, and in severe cases, there was a risk that the ink would spill down to the writing surface. And even when the internal pressure of the ink-receiving unit is lowered to a normal state, the surplus of ink temporarily suspended in the nib does not return to the ink-receiving unit as expected, which may adversely affect the subsequent writing state and the writing instrument body. There is.

The present invention has been devised to solve the above problems, and the writing instruments can always maintain a good writing state because the phenomenon that ink is accumulated at the front end of the pen body is accurately prevented in correspondence with the pressure resistance state of the ink receiving portion. The purpose is to provide.

The present invention for achieving the above object has a structure in which a pen core is provided so as to cover them on the outer periphery of the pen body except the writing unit and the ink guide core connected to the pen body.

Hereinafter, an embodiment of the present invention will be described.

FIG. 1 is a longitudinal sectional view showing the main components of one embodiment of the present invention, in which the writing instrument E is connected to the pen body 10 except for the writing unit 10a, and the ink guide core 20 connected to the pen body 10. As shown in FIG. The pen nib 30 is provided on the outer periphery so as to cover the outer periphery of the pen body pen nib 30A and the ink guide core 20 covering the outer periphery of the pen body 10. The ink guide core nib 30B has a structure in which these pen core nib 30A and the ink guide core nib 30B are integrally formed. The diameter D of the ink guide core pen core 30B is formed to be thicker than the diameter d of the pen body pen core 30A. An ink distribution groove 31 opened toward the pen body 10 is formed at the ink induction core 20 side of the pen body pen nib 30A, and at the ink receiving portion 40 side of the ink induction core pen nib 30B. The ink flow groove 32 is formed to be opened toward the ink guide core 20.

Thus, since the pen body portion pen core 30A and the ink guide portion pen core 30B are continuously formed integrally with each other, the pen core 30 becomes thick and long so that ink can be sufficiently stored, so that ink is accumulated at the front end of the pen body. The phenomenon can be reliably prevented.

Further, since the ink guide core portion pen core 30B has a diameter D larger than the diameter d of the pen body portion pen core 30A, the degree of freedom of design is increased and the amount of ink storage can be increased. .

In addition, the ink penetrating groove 31 opened toward the pen body 10 is formed in the ink guide core 20 side of the pen body pen nib 30A, and the ink guide core pen nib 30B has ink on the ink receiving portion 40 side. The ink penetrating grooves 32 opened toward the guide core 20 are formed so that the ink can be guided to the plain thread portion 33 at a high speed without resistance and collected therein. Therefore, it is possible to reliably prevent the phenomenon in which the ink accumulates at the front end of the pen body, and when the internal pressure of the ink containing portion 40 is lowered, the ink retained in the plain thread of the pen nib is generated at each of the members. Step by step capillary action is returned to the ink containing portion 40 in sequence.

Next, the operation and effect of the present embodiment will be described.

The ink in the ink receiving portion 40 is supplied to the pen body 10 via the ink guide core 20, and the ink accommodating with the consumption of ink by the vent hole 35 formed at the front end of the pen core 30. Pressure increase in the ink accommodating part 40 due to pressure in the part 40 and a change in air pressure or a temperature increase can be prevented.

In addition, even when ink is excessively supplied due to an increase in the internal pressure of the ink receiving portion 40 due to a temperature rise during writing, the ink can be sufficiently stored in the long, thick nib 30 so that the ink can be sufficiently stored in the pen body ( The phenomenon that accumulated at the front end of 10) can be reliably prevented, while when the internal pressure of the ink receiving portion 40 is lowered to normal, the surplus of ink retained temporarily can be reliably returned to the ink containing portion 40. By doing so, the phenomenon that ink collects at the front end of the pen body 10 can be reliably prevented, so that a good writing state can be maintained at all times.

Moreover, even if ink remains in the plain part of the pen nib, it is consumed at the time of writing by a stepwise capillary action directed toward the pen body.

Therefore, according to the present invention, the ink accumulation on the front end of the pen body can be reliably prevented in correspondence with the pressure-resistance state of the ink receiving portion, so that a good writing state can be maintained at all times.

Claims (4)

In the writing instrument in which the ink of the ink receiving portion 40 is connected to the ink induction core 20 and the ink induction core 20, and the front end thereof is supplied through the pen body 10 forming the writing unit 10a. The outer periphery of the pen body 10 and the ink induction core 20 connected to the pen body 10 except for the writing unit 10a is covered on the outer periphery so as to cover the pen body 10 and the ink induction core 20. Writing instrument, characterized in that the pen nib (30) having the abdomen (33, 33) is provided. The pen lead portion pen core 30B for covering the outer circumference of the pen body 10 and the ink guide core sub pen core 30B for covering the outer circumference of the ink guide core 20. And writing pens, wherein the pen body pen nib (30A) and the ink guide core pen nib (30A) are formed in a row. 3. The writing instrument as set forth in claim 2, wherein said pen nib (30) has a diameter (D) of said ink guide core nib (30B0) formed thicker than a diameter (d) of a pen body nib (30A). 4. The ink guide core pen 30B according to claim 2 and 3, wherein an ink through groove 31 opened toward the pen body 10 is formed on the ink guide core 20 side of the pen body pen nib 30A. Writing ink characterized in that the ink receiving portion 40 side of the ink penetrating groove 32 is opened toward the ink guide core 20 side.