KR200368892Y1 - Pen with using function for a long time - Google Patents

Abstract

The present invention relates to a writing instrument that can be refilled, and more particularly, to a writing instrument that can be used for a long time to allow ink to penetrate the nib well and to block a cause where ink can leak to the outside.

To this end, the writing instrument having a detachable cap at the end of the case having a pen tip to refill the ink, the ink filter and the ink is embedded in the case to maintain the airtightness of the ink between the case and the ink filter It is characterized in that the cap is provided with a space expansion means for attaching an airtight piece, forming a vent hole in the ink filter so that the ink penetrates the pen tip, and preventing the ink from leaking due to thermal expansion inside the case. .

According to the above configuration, by supplying the ink filter and a large amount of ink to the case and continuously supplying ink to the ink filter irrespective of the position of the pen tip, there is an effect that can be written more clearly and clearly for a long time, The space expansion means is provided to prevent the pressure inside the upper case from expanding, thereby preventing the ink from leaking.

Description

Pen with using function for a long time}

The present invention relates to a writing instrument that can be refilled, and more particularly, it is possible to use the ink filter and ink together for a long time, and to provide a space expansion means in the cap to prevent the ink from leaking to the outside for a long time use This relates to a possible writing instrument.

In general, writing instruments are classified into dry type and wet type according to the type of ink used. The dry type is a pencil, a mechanical pencil, a holder pencil, and the wet type is an aqueous ballpoint pen, an oil pen, a fountain pen, a signature pen, a highlighter, a board. Such as a marker.

1 shows a general writing instrument 1 for supplying ink by using a capillary phenomenon of a nib, such as a sine pen, a highlight pen, a board marker, and the like, and shows an ink filter 3 into which ink is injected. It is also called a filter type writing instrument by using the ink penetrating the nib 5 after being incorporated in the case 4.

However, the writing instrument as described above has a problem in that it is impossible to use the ink remaining on the nib when the lid 2 is left unused for a long time without using the lid 2.

On the other hand, although not shown in the drawings, another writing instrument, called a tank type, allows writing by writing ink directly into the case without using an ink filter and allowing the ink to penetrate the nib.

However, the tank-type writing implement as described above has a structure in which a large amount of ink is injected, so that the nib hardening can be suppressed to some extent. However, when all the ink injected into the case is consumed, ink refilling is performed. It was impossible to throw away the writing instruments and had to buy and use new writing instruments again.

In addition, in the case of writing with the direction of the pen nib upward, the ink collects in the opposite direction of the pen nib. Therefore, in the case of a board marker, if the ink is not supplied to the nib when it is used for a long time, there is a problem that it is difficult to continuously and clearly write clearly.

2 and 3 illustrate a Korean Patent Application Publication No. 2004-0051996 (name: ink injection refill writing instrument) filed by the present applicant in order to solve some of the problems as described above. An injection hole 6 is formed at the rear of the outer cylinder 4 so as to communicate with the inside of 4), and a cap 7 is detachably installed at the injection hole 6.

In addition, a cylindrical rubber packing 8 is press-installed inside the injection hole 6 and ink is injected into the injection hole 6 so that ink can be injected from the rear of the ink filter 3 through the rubber packing 8. Insert the needle of the injection syringe (9).

That is, the ink is injected into the ink filter 3 by inserting the needle of the ink injection syringe 9 into the rubber packing 8 mounted on the injection hole 6, thereby all the ink injected into the ink filter 3 is filled. When used, it can be refilled and used.

However, since the ink injection type refilling writing instrument pre- filed by the present applicant is a method of injecting ink only into the ink filter, it is difficult to use the ink penetrating the ink filter for a long time, so it is necessary to periodically refill the ink. There was a troublesome problem.

On the other hand, all of the above-described writing instruments mentioned above also had a problem that ink leaked in the nib direction due to thermal expansion inside the outer cylinder when excessive heat is applied to the writing instrument.

In addition, although the writing instruments are not illustrated in the drawings, a very small hole is formed in the outer cylinder of the writing instrument to allow air to pass between the inside and the outside of the writing instrument so that ink can be smoothly supplied. However, in the above manner, when the size and position of the holes are incorrectly formed at the time of production of the writing instrument, there is a closed end where ink cannot be properly supplied or ink leaks to the outside.

The present invention has been made to solve the conventional problems as described above, to provide a writing instrument that can be used for a long time to be provided with a large amount of ink and the ink filter inside the case for a long time use.

Another object of the present invention is to provide a writing instrument that can be used for a long time by providing a space expansion means in the cap to fundamentally block the leakage of ink to the outside by thermal expansion.

Another object of the present invention is to provide a writing instrument that can be used for a long time to form a vent hole in the ink filter to allow the ink to penetrate smoothly to the pen nib, as well as fundamentally prevent the ink from leaking to the outside.

1 is a cross-sectional view showing a writing instrument of a general ink filter type.

Figure 2 is a cross-sectional view showing the internal shape of the writing instruments filed by the applicant.

Figure 3 is a cross-sectional view showing the refilling action of the writing instruments filed by the applicant.

Figure 4 is an exploded perspective view showing the shape and coupling relationship of the writing instrument according to the present invention.

Figure 5a is a front sectional view showing an enlarged main portion of the internal structure of the writing implement and the shape of the space expansion means and the ventilation hole according to the present invention.

Figure 5b is a front sectional view showing an operating state of the space expansion means according to the present invention.

Figure 6 is a plan sectional view showing a vent hole formed in the ink filter of the present invention.

* Description of Major Symbols in Drawings *

10-Writing Instruments 20-Lid

30-Ink Filter 32-Airtight

34-Absorbing member 35-Nib

36-Vent Hole 40-Case

45-Packing 50-Cap

52-Hole 55-Extension Projection

In order to achieve the above object, a constitution of the present invention is provided in a writing instrument having a detachable cap at an end of a case provided with a nib, and configured to enable refilling of ink. An airtight holding piece for maintaining the airtightness of the ink between the ink filter and the ink filter, and forming a vent hole in the ink filter so that the ink penetrates the pen tip, and the cap to prevent the ink from leaking due to thermal expansion inside the case. It characterized in that it comprises a space expansion means.

The vent hole is formed integrally with the ink filter.

As described above, the space expansion means forms a hole in the center of the cap, and the lower end of the hole is characterized in that it is attached to the expansion and contraction hollow hollow.

The lower part of the ink filter is characterized in that it further comprises an absorbing member for absorbing ink.

That is, by supplying ink filter and a large amount of ink to the case and continuously supplying ink to the ink filter irrespective of the position of the pen tip, it is effective to write a long time more clearly and clearly, and to increase the space in the cap. It is also provided to prevent the pressure inside the upper case to expand, there is also an effect that can block the leakage of ink, there is also an effect that the ink penetrates well to the pen nib by forming a vent hole in the ink filter.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 to 6 illustrate a writing instrument 10 that can be used for a long time, and includes a case 40, an ink filter 30, a nib 35, a lid 20, and a cap 50. .

In the following description, the case 40 is divided into an upper case 40a and a lower case 40b. The upper case 40a and the lower case 40b are screwed together or forcedly coupled to each other.

Among them, first, the upper case 40a serves to embed the ink and the ink filter 30, and is formed in a long cylindrical and polygonal penetrating cylindrical shape. Such, the upper case (40a) upper inner side to form a female threaded portion 44 so that the cap 50 can be firmly fitted.

In addition, a pen nib 35 was inserted into the lower case 40b to enable writing, and a lid 20 was inserted into the lower case 40b to cover the pen nib 35. At this time, it is obvious that the locking jaw 41 and the locking groove 21 are formed on the inner side of the lid 20 and the upper end of the lower case 40b to maintain the mutual coupling force.

The cap 50 is to be combined and detachably coupled to refill the ink, and a male screw portion 54 is formed on the lower inner surface of the cap 50 to be inserted into the female screw portion of the upper case 40a. To lose. At this time, a packing 45 is provided between the cap 50 and the upper case 40a to prevent leakage of ink.

In addition, the cap 50 includes a space expansion means in consideration of leakage of ink due to thermal expansion inside the upper case 40a. The space expanding means forms a hole 52 in the center of the cap 50, and attaches the expansion and contraction protrusion 55 in the direction of the case 40 to the lower end of the hole 52.

At this time, the expansion protrusion 55 is formed to be hollow inside, but formed of a thin and flexible material when the inside of the upper case (40a) is thermally expanded and distorted by the outside, the inner space of the upper case (40a) It can be expanded temporarily.

Meanwhile, an ink filter 30 is embedded in the upper case 40a, and the lower end of the ink filter 30 is provided to be in contact with an end of the nib 35, and the upper case 40a A large amount of ink is injected between the ink filters 30. At this time, the airtight holding piece 32 is firmly fixed between the lower portion of the lower portion of the ink filter 30 and the lower inner portion of the upper case 40a to prevent the ink from leaking in the direction of the nib 35 at normal times.

5A and 6, the vent hole 36 is integrally formed inside the ink filter 30 so as to smoothly supply the ink injected into the ink filter 30 to the nib 35. The vent hole 36 is formed to be long in the longitudinal direction of the ink filter 30 in the form of a very thin and long tube.

In addition, the lower end of the ink filter 30 is further provided with an absorbent member 34 in the form of a sponge or a cotton so as to contact the inner end of the lower case 40b and the tip of the pen nib 35, and at the time of thermal expansion inside the upper case 40a. The ink filter 30 is configured to absorb ink that can leak.

Referring to the operation and effects of the present invention configured as described above in detail.

4 and 5a, after the cap 50 coupled to the top of the upper case 40a is separated by a screw action, ink is injected using a separate ink refill dropper (not shown). do. Then, the ink is embedded in the space between the ink filter 30 and the upper case 40a as well as inside the ink filter 30. At this time, the airtight retaining piece 32 is formed at the bottom outside of the ink filter 30. It is fixed to prevent the ink from seeping directly in the nib 35 direction.

When the injection of the ink is completed as described above, the cap 50 is coupled to the upper case 40a by screwing again, and then the cap 20 is opened and used. At this time, the packing 45 is provided between the cap 50 and the upper case 40a, so that the ink inside the upper case 40a does not leak in the cap 50 direction.

That is, the writing instrument 10 which can be used for a long time according to the present invention supplies a large amount of ink to the space between the ink filter 30 and the upper case 40a as well as the ink filter 30, thereby providing a position at the position of the nib 35. Irrespective of the ink, the ink is continuously supplied to the ink filter 30.

Therefore, even when the writing of the pen nib 35 is carried upward, such as a board marker, the ink is continuously supplied to the pen nib 35 through the end of the ink filter 30 located in the cap 50 direction. You can write more clearly and clearly.

On the other hand, the cap 50 is provided with a space expansion means to prevent the ink from leaking when the inside of the upper case 40a thermal expansion. That is, when the writing instrument 10 is left in a hot space for a long time as shown in FIG. 5B, since the inside of the upper case 40a is expanded by heat, pressure is applied to the inside of the upper case 40a so that ink may leak out. Will be affected. When such pressure acts on the expansion and contraction protrusion 55, the expansion and contraction protrusion 55 is distorted to the outside by the pressure, thereby expanding the inner space of the upper case 40a by the distorted space.

Therefore, unlike the conventional writing instruments, the writing instrument 10 which can be used for a long time of the present invention has an inflated pressure located in the distorted space of the expansion and contraction protrusion 55, and as a result, the pressure inside the upper case 40a expands. By preventing the ink, it is possible to fundamentally prevent the ink from leaking to the outside of the nib 35 through the ink filter 30.

For example, even when ink leaks through the ink filter 30, the absorbing member 34 is provided at the lower end of the ink filter 30, thereby preventing the ink from leaking to the nib 35.

Meanwhile, as shown in FIGS. 5A and 6, the air filter 36 is formed in the ink filter 30 so that air inside and outside the upper case 40a in which ink is stored may pass through each other. Allow ink to penetrate the nib 35 more smoothly.

Therefore, since the refill writing instrument 10 of the present invention is not a method of forming a separate vent hole in the case 40 for ventilation unlike general writing instruments, a problem that may occur due to the size of an incorrectly formed hole, that is, an upper portion Not only can the ink inside the case 40a be prevented from leaking to the outside, but it also fundamentally blocks the cause of the ink not penetrating the nib 35 due to lack of ventilation.

On the other hand, if you can not write any more using all the ink again by opening the cap 50 and then injecting ink using the ink refill dropper, the writing instrument 10 that can be used for a long time of the present invention semi-permanently It becomes usable.

On the other hand, the present invention has been described in detail only for the specific examples described above, it will be apparent to those skilled in the art that various modifications and modifications can be made within the technical spirit of the present invention, and such modifications and modifications belong to the appended utility model registration claims. It is natural.

As described above, the present invention supplies a large amount of ink to the space between the ink filter and the upper case as well as the ink filter, thereby continuously supplying ink to the ink filter regardless of the position of the nib. Therefore, even when writing the pen nib in the upper position due to its use characteristics such as a board marker, ink is continuously supplied to the pen nib through the end of the ink filter located in the cap direction, so that writing can be performed more clearly and clearly for a long time. It works.

Moreover, when the inside of the upper case is thermally expanded, the ink is under pressure to leak out, and when such pressure acts on the expansion protrusion, the expansion protrusion is distorted to the outside by the pressure and expands the space as distorted. Let's go. Therefore, the expanded pressure is located in the distorted space of the expansion and projection, and as a result, the pressure inside the upper case is prevented from expanding, thereby effectively blocking the ink from leaking out through the ink filter. .

In addition, the present invention forms a vent hole in the ink filter so that ink can penetrate the pen nib more smoothly. Therefore, since a separate vent hole is not formed in the case to vent the ink, not only does it prevent the ink inside the upper case from leaking to the pen nib through a poorly formed vent hole, but also the ink may be leaked to the nib due to the lack of ventilation. There is also an effect that can fundamentally block the cause of poor penetration.

Claims (4)

A writing instrument comprising a detachable cap at the end of a case provided with a nib to enable refilling of ink, An ink filter 30 and ink are embedded in the case 40, and an airtight piece 32 is installed between the case 40 and the ink filter 30 to maintain the airtightness of the ink. A vent hole 36 is formed in the ink filter 30 so as to easily penetrate into 35, and a space expansion means is provided in the cap 50 to prevent ink from leaking due to thermal expansion inside the case. Writing instruments can be used for a long time. The writing instrument according to claim 1, wherein the vent hole (36) is integrally formed inside the ink filter (30). The method of claim 1, wherein the means for expanding the space forms a hole 52 in the center of the cap 50, and a long-term use, characterized in that the lower end of the hole 52 is attached to the expansion and contraction projection 55 is hollow inside. This writing instrument available. The writing instrument as claimed in claim 1, further comprising an absorbing member (34) absorbing ink at the lower end of the ink filter (30).