KR20170014209A

KR20170014209A - Direct liquid feed type writing instrument

Info

Publication number: KR20170014209A
Application number: KR1020150107167A
Authority: KR
Inventors: 백만화
Original assignee: 백만화
Priority date: 2015-07-29
Filing date: 2015-07-29
Publication date: 2017-02-08
Also published as: KR101821857B1

Abstract

A direct-liquid writing instrument according to the present invention comprises an ink accommodating portion in which ink is stored, a receiving plate which forms a bottom portion of the ink accommodating portion and in which a discharge hole is formed, A valve stem inserted into the communicating pipe and a valve stem connected to an upper end of the valve stem to be provided on a discharge hole of the receiving plate, And a valve head which closes the discharge hole when it is moved, an ink passage formed between the valve stem and the communicating tube, and an ink passage which is located below the receiving plate, The ink can be absorbed and stored in the downward direction through the porous material. And a cap for covering the pen tip and sealing the pen tip from the outside, wherein the valve head is disposed on the bottom surface of the base plate, The valve is moved so that the valve plate is closed when the cap is opened in a state in which the upper inlet of the ink passage is spaced apart from the discharge hole and the pressure inside the writing instrument is larger than the pressure outside the writing implement by more than a predetermined value. .

Description

{DIRECT LIQUID FEED TYPE WRITING INSTRUMENT}

The present invention relates to a direct-fluid-type writing implement, and more particularly, to a direct-fluid-type writing implement which is configured to prevent ink from rapidly flowing out of a pen nib and smoothly carry out writing.

The conventional direct liquid type writing instrument is a writing instrument in which ink in the ink tank flows through the air exchange passage and flows into the ink occluding element and the pen tip. When ink is filled up to the ink occluding element and the pen tip by the capillary force, .

However, when the internal pressure is raised due to factors such as a temperature rise, the ink whose internal pressure is increased in the ink tank flows to the ink occluding element and the pen tip when the cap is opened to use the writing instrument. If this happens several times or an excessive temperature rise or the like, ink leakage occurs.

According to the patent inventions of Korean Patent Registration No. 10-1429470, Korean Patent Registration No. 10-0932571, Korean Patent Registration No. 10-1366439, and US Patent No. 6,181,55, ink is transported from the ink tank to the ink passage When the ink is filled by the capillary force toward the ink absorber and the pen tip, the inside of the writing instrument becomes equilibrium. When the pressure rises due to the temperature rise and the viscosity of the ink drops, some products may cause ink leakage There is a problem of ink leakage.

In this patent, the ink tank and the ink absorbing member are constituted by a plurality of communicating tubes. However, even if the ink tank and the ink absorbing member are constructed as described above, since ink as much as capillary force is stored in the ink absorbing member and the pen tip, ink leakage phenomenon occurs similarly to the above case, I can not solve the problem.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the problems of the related art, and an object of the present invention is to solve the problem of ink leakage of a conventional direct liquid type writing instrument. In order to use a writing instrument, There is no risk of leakage, and it is an object of the present invention to provide a direct-fluid type writing implement having a simple and simple structure.

According to an aspect of the present invention, there is provided a direct-fluid-type writing implement comprising: an ink accommodating portion in which ink is stored; a support plate having a bottom portion of the ink accommodating portion and formed with a discharge hole; A valve stem inserted into the communicating tube and a valve stem coupled to an upper end of the valve stem to be provided on a discharge hole of the receiving plate and moved downward; And a valve head which closes the discharge hole, an ink passage formed between the valve stem and the communicating tube, and an ink supply passage which is located below the ink receiving portion, The ink can be absorbed and stored in the downward direction. And a cap for covering the pen tip and sealing the pen tip from the outside, wherein the valve head is disposed on the upper surface of the base plate When the cap is opened in a state where the upper inlet of the ink path is opened and the pressure inside the writing implement is larger than the pressure outside the writing implement by a predetermined distance, Lt; / RTI >

In order to achieve the above object, the present invention provides a direct-fluid-type writing implement comprising: an ink accommodating portion in which ink is stored; a support plate having a bottom portion of the ink accommodating portion and formed with a discharge hole; An ink communicating portion extending from the lower surface of the support plate and extending downward by a predetermined length and having a spring supporting protrusion formed on an inner circumferential surface thereof and a valve stem inserted into the communicating tube and an upper end portion of the valve stem, And a valve head which is provided on the discharge hole and closes the discharge hole when the discharge port is moved downward, a spring surrounding the valve stem and provided between the valve head and the spring support jaw, And a plurality of discharge holes A valve stopper which stops when the head is lifted up to a maximum and forms an ink passage hole for passage of ink, an ink passage formed between the valve stem and the communicating tube, An absorption reservoir made of a porous material so as to absorb and store the ink moved downward through the communication path and the ink path from the ink reservoir and the ink reservoir, and a pen tip for drawing the ink stored in the absorption reservoir by capillary force, The valve head is spaced apart from the discharge hole of the support plate so as to open the upper end opening of the ink passage and the pressure inside the writing instrument is applied to the outside of the writing implement. When the cap is opened in a state where the pressure is greater than a predetermined value, the valve moves The valve head may be configured so as to close the said discharge hole.

In order to achieve the above object, the present invention provides a direct-fluid-type writing implement comprising: an ink accommodating portion in which ink is stored; a support plate having a bottom portion of the ink accommodating portion and formed with a discharge hole; An ink communicating portion which is connected to a lower surface of the support plate and extends downward by a predetermined length and has a spring supporting protrusion formed on an inner circumferential surface thereof and an ink communicating portion which penetrates in a vertical direction A valve support member inserted into the guide tube and a lower end portion of the valve stem, the valve stem being inserted into the guide tube, And a valve head which closes the exhaust hole when it is moved downward An absorption storage portion formed of a porous material so as to absorb and store the ink moved downward from the ink containing portion through the communicating tube, the ink being stored in the absorption storage portion; And a cap which covers the pen tip and seals the pen tip from the outside. Normally, the valve head is located at an interval from the discharge hole of the receiving plate to open the upper inlet of the ink pathway The valve is moved so that the valve head closes the discharge hole when the cap is opened in a state where the pressure inside the writing implement is larger than a pressure outside the writing implement by more than a predetermined value.

In order to achieve the above object, the present invention provides a direct-fluid-type writing implement comprising: an ink accommodating portion in which ink is stored; a support plate which constitutes a bottom portion of the ink accommodating portion and in which a discharge hole is formed; An ink communicating part connected to a lower surface of the receiving plate and extending downward by a predetermined length and having a spring supporting step formed on an inner circumferential surface thereof; a spring inserted into the communicating pipe and having a lower end hung on the spring supporting jaw; A ball valve fixed to an upper end of the spring, and a ball valve fixedly installed at a distance above the discharge hole by a certain distance from the discharge hole to stop the ball valve when it reaches the maximum, A valve stopper formed on the bottom of the support plate, An absorption reservoir made of a porous material so as to absorb and store the ink moved downward through the communicating tube; a pen nib which draws ink stored in the absorption storage unit by capillary force to make a writing, Wherein the ball valve is spaced apart from the discharge hole of the support plate to open an upper end opening of the ink passage and the pressure inside the writing implement is larger than a pressure of the outside of the writing implement by at least a predetermined value , The valve may be moved so that the valve head closes the discharge hole.

Preferably, the inner circumferential surface of the communicating tube is provided with a plurality of air passage ribs extending in the vertical direction and protruding inward.

Preferably, the valve head is constituted by a ring-shaped ring coupled to a rim of the plate-shaped portion and the plate-shaped portion and thicker than the plate-shaped portion.

It is preferable that the material of the valve head is rubber.

Preferably, the valve head is in the form of a truncated cone whose diameter decreases downward.

As described above, according to the liquid-jet writing implement of the present invention, in order to prevent ink leakage, a valve is provided at the inlet of the ink tank and the ink exchange passage, and when the temperature rises, the outlet is made small or blocked, So that ink leakage from the pen tip is effectively prevented.

1 is a sectional view showing a direct-fluid-type writing implement according to a first embodiment of the present invention;
Fig. 2 is a partially enlarged cross-sectional view showing a portion including a valve in Fig. 1; Fig.
FIG. 3 is a cross-sectional view showing a cut along the line AA in FIG. 2. FIG.
FIG. 4 is a partially enlarged cross-sectional view of the circular plate valve in FIG. 2; FIG.
FIG. 5 is a cross-sectional view showing a state of cutting along the line BB in FIG. 4. FIG.
6 is a cross-sectional view showing a portion including a valve of a direct-fluid type writing implement according to a second embodiment of the present invention.
7 is a cross-sectional view showing a state of cutting along the line CC in FIG. 6;
8 is a sectional view showing a portion including a valve of a direct-fluid-supply writing implement according to a third embodiment of the present invention.
9 is a cross-sectional view showing a state in which it is cut along the DD line of Fig. 8;
10 is a sectional view showing a portion including a valve of a direct-fluid-supply writing implement according to a fourth embodiment of the present invention.
11 is a cross-sectional view showing a state of being cut along the line EE of Fig.
12 is a cross-sectional view showing a portion including a valve of a direct-fluid-supply writing implement according to a fifth embodiment of the present invention.
Fig. 13 is a cross-sectional view showing a state in which it is cut along the FF line in Fig. 12; Fig.
14 is a cross-sectional view showing a portion including a valve of a direct-fluid-supply writing implement according to a sixth embodiment of the present invention.
15 is a plan view showing a valve of a direct-fluid-supply writing implement according to a sixth embodiment of the present invention.

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

1 to 5 illustrate a first embodiment of the present invention. The direct liquid type writing implement according to the present invention comprises an upper body 10, a lower body 11 and a cap 12 forming an outer appearance, An ink communicating portion 30, a valve 40, an absorbent storage portion 60, and a nib 70 are provided.

The lower body of the writing instrument body is formed with a through hole so that the lower part of the pen body 70 is in contact with the lower surface of the lower body 11, So as to protrude.

The cap 12 is configured such that the lower end of the writing instrument can be fitted to seal the pen tip 70 so as not to be in contact with the outside air, and is detachable from the lower body 11.

A space is formed in the writing implement body formed by being coupled with the upper body 10 and the lower body 11. A portion of the internal space of the upper body 10 located directly above the ink communicating portion 30 is referred to as ink And the ink containing portion 20 is a portion filled with the ink 100 in liquid form. The upper space of the upper body 10 is filled with the mixed gas 110 in the upper space of the ink accommodating portion 20.

An absorbent storage part (60) is provided in the space below the ink communicating part (30) in the internal space of the writing implement body. The absorbent storage unit 60 is made of a porous material so as to absorb and store the ink that has been moved downward through the ink passage 50 from the ink containing unit 20.

The absorbent storage portion 60 has a cylindrical shape and is made of a soft material so that the communicating tube 32 of the ink communicating portion 30 pierces the upper center portion of the absorbent storage portion 60 deeply, And the upper end portion is pierced deeply at the lower center portion of the absorption storage portion 60. [

2, a slight gap 19 is formed between the base plate 31 and the absorption storage portion 60, and a space portion (not shown) is formed immediately below the absorption storage portion 60 as shown in FIG. 71 and a space 72 is also provided between the pen tip 70 and the cap 12. [

The ink communicating portion 30 includes a receiving plate 31 and a receiving plate 30 which form a bottom portion of the ink containing portion 20 so as to isolate the ink containing portion 20 and the absorbing storage portion 60 from each other, And a circular pipe-shaped communicating tube 32 extending vertically in the vertical direction and connected to the discharge hole of the support plate 31. [ With such a configuration, the ink on the support plate 31 has a structure to supply ink to the absorption storage portion 60 through the communication pipe 32 through the discharge hole.

An ink passage rib 33 extending in the vertical direction is protruded inwardly from the upper end to the lower end of the communicating pipe 32 at the inner circumferential surface of the communicating tube 32, Four radially orthogonal to each other. The upper portion of the ink chamber ribs 33 abuts on the side surface of the valve stem 42 as shown in FIG. 3, thereby holding the valve stem 42 so that the valve stem 42 moves up and down A space is formed between the communicating tube 32 and the valve stem 42 by the rib 33 for the ink passage in the portion where the valve stem 42 is inserted in the communicating tube 32, 50).

The basic function of the ink reservoir rib 33 is to allow the ink to descend well downward.

On the inner circumferential surface of the upper body 10, on the inner circumferential surface of the portion surrounding the absorbent storage portion 60, six ribs 13 for air passage extending in the vertical direction are protruded inward with six radially spaced intervals. 3, the absorption storage unit 60 is sandwiched between the rib 13 for the air passage and the communicating pipe 32, and the space between the absorption storage unit 60 and the upper body 10 and the ribs for the air passage 13, an air passage 51 is formed.

The valve 40 is provided in the ink communicating part 30 to prevent the ink from rapidly flowing out and serves to open and close the discharge hole of the ink communicating part 30. [

4 and 5, the valve 40 according to the first embodiment includes a disk-shaped valve head 41, a circular-shaped valve head 41 having an upper end joined to the lower center portion of the valve head 41, And a valve stem 42 in the form of a rod. It is preferable that the valve head 41 and the valve stem 42 are integrally formed of rubber. The valve head 41 is a thin rubber film having a thickness of 0.1 mm or less and is normally made to float upward 0.5 mm from the discharge hole as shown in Fig. However, when the cap 12 is opened in a state where the pressure difference between the inside and the outside of the writing instrument is large, the entire valve 40 is lowered to close the discharging hole.

The operation principle of the direct-fluid type writing implement provided with the valve according to the present invention is as follows.

The ink in the ink containing portion 20 is discharged to the discharge hole through the gap between the valve head 41 and the support plate 31 by the gravity force and passes through the ink passage 50, And then flows into the absorption storage section 60 and is stored. At the same time, outside air passes through the ink passage (50) and passes through the discharge hole and enters the ink containing portion (20). When the ink stored in the absorption storage section 60 and the pen point 70 reaches a certain amount, mutual exchange of ink and air in the ink communicating section 30 is stopped. At this time, the gas pressure of the space portion 71 under the absorption storage portion 60 and the surface tension of the absorption storage portion 60 are in an equilibrium state with the gas pressure of the gap 19, and the absorption in contact with the lower end hole of the communication pipe 32 The exchange of ink and air inside the storage section 60 is also stopped. Also, the ink surface tension of the pen tip 70 and the gas pressure of the space portion 72 surrounded by the cap 12 are in an equilibrium state. As a result, there is no possibility that the ink leaks from the ink accommodating portion 20 toward the space portion 72. A certain amount of ink is stored in the pen tip 70 and the absorption storage portion 60 so that the pen tip 70 is pointed upward or the writing instrument is horizontally laid so that the pen tip 70 It can be sufficiently handwritten by the ink stored in the absorption storage part 60. [

In direct liquid type writing instruments, when the external factors such as temperature rise, vibration and impact are large, the pressure in the direct liquid type writing instrument is increased. When the pressure of the ink containing portion 20, the valve 40, the ink communicating portion 60, the absorption storage portion 60, and the space portions 71 and 72 rises, the solvent portion of the ink vaporizes, Since the cap 12 is closed, the volume expansion is suppressed even if the pressure in the liquid-jet writing implement increases.

When the cap 12 is opened to use the writing instrument in this state, the raised internal pressure acts in the direction of the absorbent storage portion 60 and the nib 70. At the same time, the ink 100 in the ink containing portion 20, And the mixed gas 110 is forced to flow into the communicating pipe 32 through the discharge hole so that the valve 40 abuts against the receiving plate 31 to close the discharging hole and thus the rapid flow .

6 and 7 illustrate a second embodiment of the present invention. The second embodiment differs from the first embodiment in that a spring supporting step 81 is formed so that the upper diameter of the communicating tube 32 is larger than the lower diameter, A spring 80 is installed in the upper space of the main body 10a. The spring 80 surrounds the valve stem 42 as a coil spring and the lower end thereof extends over the spring supporting step 81 and the upper end abuts the lower surface of the valve head 41 to push the valve head 41 upward Force.

Since it is necessary to limit the upward movement of the valve 40, the valve stopper 36 connected to and fixed to the receiving plate 31 of the ink communicating portion 30 is spaced upward from the discharging hole, 31 and the valve stopper 36. When the valve 40 reaches the maximum, the bottom surface of the valve stopper 36 comes into contact with the bottom surface of the valve stopper 36,

As shown in FIG. 7, the valve stopper 36 includes a disc-shaped member having a plurality of through holes 37 pierced therethrough so that ink and air can freely flow.

8 and 9 show a third embodiment of the present invention. This embodiment is different from the first embodiment in that the valve head 41 is at the lower end and the valve stem 42 is located above the upper surface center portion of the valve head 41 And the valve stem 42 is inserted into the guide tube 35 which is fixed at a distance upward from the discharge hole. The guide pipe 35 is a part of a valve support member 34 to which a support plate 31 is connected and fixed in the form of a circular pipe extending in the vertical direction so that the valve 40 can linearly move in the vertical direction Guide. When the valve 40 receives the downward pressure, it moves downward, and the valve head 41 closes the discharge hole. As shown in FIG. 9, the upper surface of the valve supporting member 34 is a disc-shaped member having a plurality of through holes 37 formed therethrough so that ink and air can freely flow.

10 and 11 show a fourth embodiment of the present invention. The difference from the second embodiment is that a ball valve 43 is used instead of a valve consisting of a valve head and a valve stem. The ball valve 43 rests on the upper end of the spring 80. When the ball valve 43 moves downward, it closes the exhaust hole. When the ball valve 43 rises to the maximum, the ball valve 43 abuts against the circular ring portion of the valve stopper 36 and stops.

12 and 13 illustrate a fifth embodiment of the present invention. The difference from the second embodiment is that the valve head 41 is formed in an inverted trapezoidal shape in which the diameter becomes smaller downward instead of being in the form of a thin film I have to have.

In the case of the sixth embodiment shown in Figs. 14 and 15, the difference from the valves of the first and second embodiments is that the edge portion of the valve head 41 is constituted in such a manner that the circular ring- And the edge is thicker than the other part of the valve head 41. Such a configuration is not applicable when the diameter of the valve head 41 is small and thus it is difficult to apply it. In the case of a thick marker pen, it is applicable to increase the sealing strength by thickening the edge of the edge.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as set forth in the accompanying drawings. And modifications are within the scope of the appended claims.

10: upper body 11: lower body
12: cap 13: rib for the air passage
19: gap 20: ink containing portion
30: ink communicating portion 31:
32: communicating tube 33: rib for ink passage
34: valve support member 35: guide tube
36: valve stopper 37: ink passage hole
40: valve 41: valve head
42: Valve stem 43: Ball valve
50: Ink passage 51: Air passage
60: absorbent storage part 70: nib
71, 72: space portion 80: spring
81: spring support jaw 100: ink
110: mixed gas

Claims

An ink containing portion in which ink is stored;
An ink communicating part including a bottom plate of the ink accommodating part and having a discharge hole formed therein and a communicating tube having an upper end communicating with the discharge hole and a lower end communicating with the lower surface of the receiving plate and extending downward by a predetermined length;
A valve stem inserted into the communicating tube, and a valve head connected to an upper end of the valve stem and provided on a discharge hole of the receiving plate and closing the discharging hole when moved downward;
An ink passage formed between the valve stem and the communicating tube;
An absorption storage unit disposed below the support plate and made of a porous material so as to absorb and store the ink moved downward from the ink containing unit through the ink path and the communication pipe;
A pen tip for drawing the ink stored in the absorption storage portion by a capillary force to perform writing; And
And a cap covering the pen tip to seal the pen tip from the outside,
The valve head is spaced apart from the discharge hole of the support plate to open the upper end opening of the ink passage and when the cap is opened in a state where the pressure inside the writing implement is larger than a pressure outside the writing implement, And the valve head is configured to close the discharge hole.

An ink containing portion in which ink is stored;
And a communicating tube having an upper end connected to a lower surface of the receiving plate so as to communicate with the discharging hole and extending downward by a predetermined length and having a spring supporting protrusion formed on an inner circumferential surface thereof, An ink communicating portion;
A valve stem inserted into the communicating tube, and a valve head connected to an upper end of the valve stem and provided on a discharge hole of the receiving plate and closing the discharging hole when moved downward;
A spring surrounding the valve stem and disposed between the valve head and the spring support jaw;
A valve stopper connected to the pedestal plate and fixedly installed at a distance above the discharge hole by a predetermined distance so as to abut against the valve head when the valve head rises to the maximum and to form an ink passage hole for ink passage;
An ink passage formed between the valve stem and the communicating tube;
An absorption storage unit disposed below the support plate and made of a porous material so as to absorb and store the ink moved downward from the ink containing unit through the ink path and the communication pipe;
A pen tip for drawing the ink stored in the absorption storage portion by a capillary force to perform writing; And
And a cap covering the pen tip to seal the pen tip from the outside,
The valve head is spaced apart from the discharge hole of the support plate to open the upper end opening of the ink passage and when the cap is opened in a state where the pressure inside the writing implement is larger than a pressure outside the writing implement, And the valve head is configured to close the discharge hole.

An ink containing portion in which ink is stored;
And a communicating tube having an upper end connected to a lower surface of the receiving plate so as to communicate with the discharging hole and extending downward by a predetermined length and having a spring supporting protrusion formed on an inner circumferential surface thereof, An ink communicating portion;
A valve support member including a guide pipe extending vertically through the discharge hole and spaced upward by a predetermined distance apart from the discharge hole, and a member for supporting the guide pipe, the valve support member having an ink passage hole for ink passage;
A valve stem inserted into the guide tube, and a valve head connected to a lower end of the valve stem and provided on a discharge hole of the receiving plate and closing the discharge hole when moved downward;
An absorption storage unit disposed below the support plate and made of a porous material so as to absorb and store the ink moved downward from the ink storage unit through the communication pipe;
A pen tip for drawing the ink stored in the absorption storage portion by a capillary force to perform writing; And
And a cap covering the pen tip to seal the pen tip from the outside,
The valve head is spaced apart from the discharge hole of the support plate to open the upper end opening of the ink passage and when the cap is opened in a state where the pressure inside the writing implement is larger than a pressure outside the writing implement, And the valve plate is configured to close the discharge hole.

An ink containing portion in which ink is stored;
And a communicating tube having an upper end connected to a lower surface of the receiving plate so as to communicate with the discharging hole and extending downward by a predetermined length and having a spring supporting protrusion formed on an inner circumferential surface thereof, An ink communicating portion;
A spring inserted into the communicating tube and having a lower end hung on the spring supporting jaw;
A ball valve mounted on an upper end of the spring;
A valve stopper connected to the support plate and fixedly installed at a predetermined distance from the discharge hole at a predetermined distance therebetween so as to abut against the ball valve when the ball valve rises to the maximum and to form an ink passage hole for ink passage;
An absorption storage unit disposed below the support plate and made of a porous material so as to absorb and store the ink moved downward from the ink storage unit through the communication pipe;
A pen tip for drawing the ink stored in the absorption storage portion by a capillary force to perform writing; And
And a cap covering the pen tip to seal the pen tip from the outside,
The ball valve is spaced apart from the discharge hole of the support plate to open an upper end opening of the ink passage and when the cap is opened in a state where the pressure inside the writing instrument is larger than a pressure outside the writing instrument, And the valve is moved so that the valve head closes the discharge hole.

5. The method according to any one of claims 1 to 4,
Wherein the inner circumferential surface of the communicating tube is provided with a plurality of air passage furnace ribs extending in the vertical direction and protruding inward.

4. The method according to any one of claims 1 to 3,
Wherein the valve head is constituted by a ring-shaped ring coupled to a rim of the plate-shaped portion and the plate-shaped portion and thicker than the plate-shaped portion.

5. The method according to any one of claims 1 to 4,
Wherein the material of the valve head is rubber.

3. The method of claim 2,
Wherein the valve head is in the form of a truncated cone having a diameter decreasing in a downward direction.