KR200277830Y1 - a pen - Google Patents

Abstract

The present invention relates to a writing instrument, the present invention is an air supply groove 14 is formed by the rib 12, the writing member 16 is installed main body 10; A separation wall 22 inserted into the main body 10 and having an air / ink exchange part 21, integrally formed on a bottom surface of the separation wall 22, and having a central supply path 23 formed therein. A separation member 20 formed of a tube 26 having a communication part for partially communicating the capillary storage part 17 and the central supply path 23 and installed inside the main body 10; A feeder 25 installed in the central supply path 23; And a capillary storage member 30 installed in the capillary storage unit 17. According to the present invention, the capillary storage member 30 and the feeder 25 are connected in a state in which the capillary tube is spaced apart from the communication unit. The storage member 30 has sufficient ink capacity to prevent the excessive supply of ink directly affecting the writing member 16, and to prevent the capillary storage member 30 and the feeder 25 from the material and capillary force. If the pressure reducing member 40 is provided on the separating member 20, the pressure applied to the feeder 25 substantially by the supply path formed to be bent even if the internal pressure of the ink storage unit 16 increases. As a result of this reduction, an excessive supply of ink can be prevented from the source.

Description

Writing Instruments {a pen}

The present invention relates to a writing instrument, and more particularly, to a writing instrument capable of preventing the release of ink due to an increase in internal pressure, an impact, or the like.

In general, the writing instrument of the writing instrument is configured such that the ink stored in the ink storage unit is supplied to the writing member (nip or tip) by the feeder.

In the writing instrument of this structure, as much ink as consumed by the writing member is supplied to the ink storage unit when writing is performed.

At this time, when an internal pressure rise, an impact, or the like occurs due to an increase in the external temperature, the ink of the ink reservoir is excessively supplied to the writing member.

The problem is that the main body 1 is divided into an ink reservoir 2 and a capillary reservoir 3 by the separating wall 4, and the feeder 5 is directly connected to the separating wall 4 as shown in FIG. 1A. After installation, it could be somewhat eliminated by installing the capillary member 6 in this feeder (5).

That is, the ink oversupplied from the ink reservoir 2 is absorbed by the capillary member 6 and temporarily stored, thereby preventing the ink from being oversupplied to the writing unit 7.

However, in such a structure, since the capillary member 6 is always in direct contact with the feeder 5 to accommodate a certain amount of ink, the ink that is oversupplied cannot be sufficiently accommodated with the overfilled ink. 7) there was a problem that can not fulfill its function by being delivered directly, thereby increasing the manufacturing cost by configuring the capillary member 6 large capacity.

In addition, since the feeder 5 is installed in the separation wall 4, and the feeder 5 functions as an ink supply path and an air inflow path, the air and ink are consumed when the ink is consumed. There was also a problem that the ink is not smoothly supplied to the feeder 5 due to the collision.

Meanwhile, as shown in FIG. 1B, a tube 4-2 having a central supply path 4-1 is formed in the separation wall 4, and the capillary member 6 is formed in the tube 4-2. Although a writing instrument having a structure is provided, the capillary member 6 and the feeder 5 are configured to be in direct contact with each other. In this case, the capillary member 6 always accommodates a certain amount of ink, so that additional ink There was a problem that was difficult to accommodate, and because the ink supply passage and the air inlet passage were integrally formed, there was a problem that the ink supply was not smooth due to the collision of ink and air.

In addition, in the case as described above, there was also a problem that the material and capillary force of the feeder 5 and the capillary member 6 must be configured differently. That is, the material had to be selected so that the capillary force (capability of absorbing ink) of the feeder 5 is greater than the capillary force of the capillary member 6.

The present invention has been made in order to solve the problems of the prior art as described above, the technical problem of the present invention is that the feeder and the capillary storage member to be connected in a spaced apart state by a tube having a communication portion to accommodate the excess ink. And, it is to provide a writing instrument that can be configured to supply the ink more smoothly by configuring the ink supply passage and the air supply passage separately.

Another technical problem of the present invention is to provide a writing instrument that can be freely selected and used for each of the materials regardless of the capillary forces of the feeder and capillary storage member.

Another technical problem of the present invention is to provide a means for minimizing the pressure applied to the central supply path when the internal pressure of the ink reservoir increases.

Figure 1a, 1b is a cross-sectional view showing the overflow prevention structure of the writing instrument according to the prior art.

Figure 2 is a cross-sectional view showing a writing instrument according to a first embodiment of the present invention.

3A, 3B, 3C, and 3D are cross-sectional views of the writing instrument shown in FIG. 2, 3A is a cross-sectional view taken along line AA ′ of FIG. 2, and 3B is a cross-sectional view of another embodiment of the dividing wall shown in FIG. 3A. 3c is a sectional view taken along the line b-b 'of FIG. 2, and 3d is a sectional view taken along the line C-C' of FIG.

Figure 4a, 4b, 4c, 4d is an exploded view showing various embodiments in which the communication unit according to the present invention is integrally formed in the tube.

Figure 5a, 5b, 5c, 5d is an enlarged cross-sectional view showing each embodiment of the communication unit formed in the tube is formed separately from the tube according to the present invention.

Figure 6 is a cross-sectional view showing a writing instrument showing a second embodiment of the present invention.

Figure 7a, 7b, 7c, 7d is a partially enlarged cross-sectional view showing various embodiments of the spacer according to the present invention.

8A and 8B are cross-sectional views of writing instruments according to third and fourth embodiments of the present invention.

9A, 9B, and 9C show a fifth embodiment of the present invention, where 9a is a sectional view of a writing instrument, 9b is a sectional view taken along line D-D 'of 9a, and 9c is a partially enlarged view showing a pressure reducing member. .

<Description of the symbols for the main parts of the drawings>

10: body 12: rib

14: air supply groove 15: ink reservoir

16: writing member 17: capillary reservoir

20: division member 21: air / ink exchange unit

22: dividing wall 23: central supply path

25: feeder 26: tube

26A: fitting groove 26B: screw hole

30: capillary storage member 32: lower storage member

34: intermediate storage member 36: upper storage member

40: pressure reducing member 42: horizontal stage

42A: Horizontal projection 42B: Horizontal supply path

44: vertical end 44A: vertical projection

44B: vertical feed path 50: communication member

52A, 52B: Slot 52C: Through Hole

52D: Mesh 54: Fitting

56: thread L: separation distance

T1: buffer gap T2: lower gap

T3: intermediate gap T4: separation part

The present invention for solving the technical problem as described above is formed in the inner wall ribs are formed in the air supply groove communicating with the outside, the end of the writing member is installed in the axial direction; A separation wall inserted into the main body and having an air / ink exchange part to extend the inside of the main body into an ink storage part and a capillary storage part, and extending downwardly below the bottom surface of the separation wall and having a central supply path therein; And a separation member installed in the main body, the tube having a communication part for communicating ink with the capillary reservoir part and the central supply path partially. A feeder installed at the central supply path such that a lower end thereof contacts the writing member; And a capillary storage member installed in the capillary reservoir so as to be spaced apart from the feeder by the tube.

In this case, the communication portion is characterized in that the closed or opened a plurality of slots formed in the axial direction, or a through hole or a mesh. In addition, the communicating portion is formed directly on the tube, or is formed independently of the tube, characterized in that installed in the tube.

The capillary storage member may be formed as a single body or divided into a plurality.

The capillary storage member is characterized in that the buffer gap is formed between the upper surface and the bottom surface of the separation wall.

The capillary storage member is characterized in that the upper surface is in close contact with the bottom surface of the separation wall is installed so as to be directly connected to the air / ink exchange.

In particular, the separation portion is formed between the capillary storage member and the writing member is characterized in that configured to prevent the ink of the writing member is moved to the capillary storage member.

On the other hand, the separating member is provided with a pressure reducing member for reducing the increased pressure when the internal pressure rise of the ink reservoir portion to act on the feeder, the pressure reducing member is a horizontal end having a plurality of horizontal projections on the bottom; And a vertical end formed integrally with the bottom of the horizontal end and having a plurality of vertical protrusions formed on an outer circumferential surface thereof, wherein a horizontal supply path is formed between the bottom of the horizontal end and the upper surface of the partition member. The vertical end is inserted into the central supply path so that a vertical supply path connected to the horizontal supply path at right angles is formed between the inner circumferential surface and the outer circumferential surface of the vertical end.

Referring to each preferred embodiment of the present invention having the features as described above in detail based on the accompanying drawings as follows. Hereinafter, the communication hole collectively refers to the closed slot 52A or the opened slot 52B, the through hole 52C, the mesh 52D, etc., which are formed in the tube 26 or the independent communication member 50 forming the communication portion. will be.

First, in the writing instrument according to the first embodiment, as shown in FIGS. 2 to 4D of the accompanying drawings, a communication unit is integrally formed in the tube 26 of the division member 20, and the capillary storage unit 17 Capillary storage member 30 surrounding the tube 26 is installed so that the feeder 25 and the capillary storage member 30 inside the tube 26 are connected to be spaced apart. Also, apart from the central supply path 23 formed in the tube 26, as shown in FIG. 3A, the air / ink exchange part 21 is formed in the separating wall 22 in the radial direction thereof, or as shown in FIG. 3B. As described above, the air / ink exchanger 21 is formed between the outer circumferential surface of the separation wall 22 and the inner diameter of the main body 10 to facilitate the exchange of air and ink.

This will be described in more detail as follows.

The main body 10 of the writing instrument according to the present invention has a narrow lower end as shown in FIG. 2, and a plurality of ribs 12 are formed therein to form an air supply groove 14 communicating with the outside. The lower end of the main body 10 is provided with a writing member 16, as shown in Figure 2 or 3d.

The separating member 20 installed inside the main body 10 is installed inside the main body 10 to separate the inside into an ink storage unit 15 and a capillary storage unit 17. And a cylindrical tube 26 extending downwardly from the bottom of the dividing wall 22.

3A and 3B, a central supply path 23 is formed at the central portion of the partition member 20, and the separation wall 22 has air / air in a radial direction so as to be independent of the central supply path 23. The ink exchange part 21 is formed. In other words, the air / ink exchange part 21 is not connected to the central supply path 23. In addition, the air / ink exchange part 21 may be formed between the outer circumferential surface of the separation wall 22 and the inner circumferential surface of the main body 10 as described above.

A communication portion is formed in the tube 26. This communication part is for communicating the central supply path 23 and the capillary storage part 17 which maintain the state separated by the tube 26 as shown in FIG. 3C, and the structure is variously formed.

That is, as shown in FIG. 4A, the communicating portion may be composed of a plurality of closed slots 52A formed long in the axial direction, and the plurality of slots 52B opened downward as shown in FIG. 4B. It may be configured, it may be composed of a plurality of through holes (52C) as shown in 4c. Also, as shown in FIG. 4D, a mesh, that is, a mesh 52D may be formed. As a result, the communication unit communicates with the central supply path 23 and the capillary storage unit 17 in a spaced apart state, surrounding the tube 26, and the capillary storage member 30 installed in the capillary storage unit 17. ) And the feeder 15 installed in the central supply path 23 to maintain the spaced apart state.

This communicating portion is preferably formed at the center or lower portion of the tube 26 as shown in FIG.

At this time, the separation distance (L) of the central supply path 23 and the capillary reservoir 17 is formed 0.1mm-0.5mm. That is, the separation distance L refers to the thickness of the tube 26 separating the central supply path 23 and the capillary reservoir 17, or the radial depth of the communication portion, as shown in FIG. 2 or 6. When the gap is 0.1 mm or less, the feeder 25 and the capillary storage member 30 are almost close to each other, so that the effect due to the spaced apart state cannot be expected. The movement is not free, and the effect of the separation is not expected. Therefore, the separation distance L is set in accordance with the conditions (surface tension, viscosity, specific gravity, etc.) of the ink, but preferably within 0.1mm-0.5mm.

On the other hand, the communication unit according to another embodiment is formed of the communication member 50 is formed independently of the tube 26 is installed on the tube 26. Of course, one selected from the closed slot 52A, the opened slot 52B, the through hole 52C, and the mesh 52D is formed in the communication member 50.

That is, as shown in FIGS. 5A, 5B, 5C, and 5D, the communication portion is formed separately from the tube 26, and the communication portion has a closed slot 52A or mesh 52D with the central supply path 23. It consists of a hollow communication member 50 formed to communicate the capillary reservoir 17.

The hollow communication member 50 is connected to the central supply path 23 to form one supply path, and the slots 52A and 52B or through holes 52C, mesh 52D, and the like are provided. It is formed.

More detailed description is as follows.

As shown in FIG. 5A, the independent communication unit according to an embodiment may include a communication member 50 having a communication hole selected from a closed slot 52A, an open slot 52B, a through hole 52C, and a mesh 52D. In this case, the fitting protrusion 54 is formed at one end of the communication member 50.

At this time, the tube 26 is formed with a fitting groove (26A) for the fitting protrusion 54 is fitted. Therefore, the communication member 50 may be installed in the tube 26 so that the fitting protrusion 54 is fitted into the fitting groove 26A so as to be integrated with each other.

In addition, as shown in FIG. 5B, the independent communication unit according to another embodiment includes a communication member 50 having a thread 56 formed at one end thereof and a selected communication hole formed therein. The communication member 50 is closed. A communication hole selected from the slot 52A, the opened slot 52B, the through hole 52C, and the mesh 52D is formed.

In this case, a screw hole 26B is formed in the tube 26 so that the thread 56 is fastened, and the thread member 56 is fastened to the screw hole 26B, so that the communication member 50 is connected to the tube (26). 26) can be integrated with each other.

On the other hand, the independent communication unit as shown in Figure 5c is a communication member 50 formed in a cylindrical shape is fitted to the feeder 25 installed in the tube 26, the end of the communication member 50 of the tube 26 It is fitted in contact with the end portion and has a structure integrated with the tube 26. In this way, the communication member 50 is installed in the feeder 25 to be in contact with the tube 26 so that the installation of the communication member 50 is easy.

In addition, the independent communication unit as shown in Figure 5d is a communication member 50 formed in a cylindrical shape is fitted to the feeder 25, between the end of the communication member 50 and the end of the tube 26, It has a structure fitted to maintain a constant interval so that the communication gap 53 for communicating the central supply path 23 and the capillary reservoir 17 is formed. At this time, it is not necessary to form a communication hole in the communication member 50. This is because the communication gap 53 functions as a communication hole.

As such, the communication gap 53 is formed between the communication member 50 and the end of the tube 26 so that a communication hole such as a slot 52A, 52B or a through hole 52C is dared in the communication member 50. There is no need to form.

As described above, since the communication unit is configured independently of the tube 26, the communication hole for communicating the central supply path 23 and the capillary reservoir 17 to the communication member 50 forming the communication unit, that is, the closed slot. The operation of forming the 52A or the opened slot 52B, the through hole 52C, the mesh 52D, or the like can be easily performed.

The capillary storage member 30 is formed of a material for accommodating ink. The capillary storage member 30 surrounds the tube 26 and is installed in the capillary storage unit 17.

The capillary storage member 30 is formed as a single body as shown in FIG. 2, the upper end of which is in contact with the bottom surface of the separation wall 22, and the lower end of which is in contact with the writing member 16.

At this time, the capillary force of the capillary storage member 30 is not bound, which is because the capillary force of the capillary storage member 30 and the feeder 25 is spaced apart from the feeder 25 This is because they do not affect each other.

When the capillary storage member 30 is installed in the capillary storage unit 17 as described above, the capillary storage member 30 and the feeder 25 may include the slots 52A and 52B or through holes 52C and meshes of the communication unit. Connection only through a communication hole such as 52D). That is, the capillary storage member 30 and the feeder 25 are kept spaced apart with the tube 26 interposed therebetween, and the slots 52A and 52B or through holes 52C and meshes of the communication portion are provided. 52D) and so on.

The operation of the writing instrument according to the first embodiment of the present invention configured as described above will be described.

Hereinafter, the communication unit will be described based on a state in which the tube 26 is integrally formed.

As shown in FIG. 2, when the internal pressure is increased by external conditions in the ink storage unit 15 in the state where each component is coupled, the increased internal pressure causes excessive discharge of ink. That is, the ink is oversupplied to the air / ink exchange part 21 and the central supply path 23 by the increase in pressure, that is, the excess outflow.

As described above, the ink supplied excessively to the central supply path 23 is absorbed by the feeder 25, and the ink leaked into the air / ink exchanger 21 is absorbed by the capillary storage member 30.

When the excessively supplied ink is absorbed by the feeder 25, the feeder 25 discharges the excess absorbent capacity to the outside.

That is, when the ink is excessively supplied to the feeder 25, as shown in the enlarged view of FIG. 5, for example, the slot 52A, 52B, the through hole 52C, or the mesh 52D, which forms a communicating portion, is closed. Ink is formed on the outer wall of the feeder 25 in contact with the slot 52A, and the ink formed on the outer wall is concentrated on the lower side of the closed slot 52A, and the volume thereof gradually increases to increase the volume of the capillary storage member 30. It is absorbed by moving to the side.

Therefore, the ink excessively supplied to the feeder 25 absorbs the slots 52A and 52B or through holes 52C, the mesh 52D, and the like into the capillary storage member 30, and exchanges air / ink. Since the ink supplied excessively through the portion 21 is absorbed by the capillary storage member 30, the excessive supply of ink to the writing member 16 can be prevented.

On the other hand, when the internal pressure of the ink reservoir 15 is normal, a portion of the ink stored in the capillary storage member 30 is capillary such as the slot 52A, the through hole 52C, or the mesh 52D of the communicating portion. It returns to the feeder 25 by the development, and the other part is returned to the ink reservoir 15 by the capillary phenomenon of the air / ink exchanger 21.

That is, the excessively supplied ink is moved from the feeder 25 to the capillary storage member 30 through the communication portion, and when the internal pressure is lowered, the ink is returned from the capillary storage member 30 to the feeder 25 through the communication portion. It is returned to the ink reservoir 15 through the air / ink exchanger 21.

At this time, the capillary storage member 30 and the feeder 25 may be formed of a material having a different capillary force, and is not bound by the size of the capillary force, which is the capillary storage member 30 and the feeder ( This is possible because 25) remains spaced apart.

In this way, the ink that is excessively leaked from the ink storage unit 15 due to the increase or the internal pressure of the capillary storage member 30 through the slot 52A, 52B, the through hole 52C, the mesh 52D, or the like of the communicating portion. It may be temporarily stored in the capillary storage member 30 and the feeder 25 is to be kept in a spaced apart state is not dependent on the material of the capillary storage member 30 and the feeder 25.

Meanwhile, the writing instrument according to the second embodiment of the present invention will be described in detail with reference to FIGS. 6 to 7A, 7B, 7C, and 7D in the accompanying drawings.

In the structure of the writing instrument according to the second embodiment, the upper end portion of the capillary storage member 30 and the separation wall 22 are spaced apart, and an upper gap T1 is formed therebetween, and the capillary storage member 30 is formed therebetween. It is the same as the first embodiment except that the separation portion T4 is formed between the lower end of the) and the writing member 16.

As such, when the buffer upper gap T1 formed between the separation wall 22 and the upper end of the capillary storage member 30 is formed, the ink of the ink storage unit 15 is normally filled with the air / ink exchange unit 21. Absorption by the capillary storage member 30 can be prevented through.

In addition, the spaced portion T4 is formed between the capillary storage member 30 and the writing member 16 to prevent the ink supplied to the writing member 16 from being reversely absorbed into the capillary storage member 30. It becomes possible.

That is, when the excessively supplied ink is absorbed in the intermediate portion of the capillary storage member 30 through the communicating portion in the feeder 25, the ink is moved to the writing member 16 through the spacer T4, but the writing member The ink of 16 is prevented from moving to the capillary storage member 30 by the spaced portion T4.

In other words, the over-supplied ink absorbed into the capillary storage member 30 through the communicating portion is collected in the capillary storage member 30 when the writing instrument is set up for writing as shown in the enlarged view of FIG. As it reaches the spacing part T4, it gradually grows on the inner wall thereof, and gradually increases in size, eventually moving to the writing member 16, that is, absorbed. However, in general, the ink of the writing member 16 is the capillary storage member 30 because the lower end of the capillary storage member 30 is kept spaced apart from the writing member 16 by the spacer T4. You will not be able to move to. Therefore, the ink supplied to the writing member 16 through the feeder 25 can be consumed by writing.

On the other hand, the spacer T4 may be configured in various ways as shown in 7a, 7b, 7c, 7d.

That is, as shown in 7a is formed in an inverted conical shape so that the upper portion of the lower end of the capillary storage member 30 is wider and the lower portion is narrow (normal light narrowing), the lower portion is close to the writing member 16, The ink collected into the lower portion of the capillary storage member 30 is absorbed by the writing member 16 after being formed at the lower end of the inclined surface along the inclined surface of the separation part T4. In this case, the spaced portion T4 having the structure illustrated in FIG. 7A may be formed by forming a shape of the main body 10 so that the lower portion thereof is narrow. That is, when the lower portion of the capillary storage member 30 is easily inserted into the main body 10 having a narrow shape, the lower portion of the capillary storage member 30 is deformed by the lower shape of the main body 10. It may be formed in the shape as shown.

Meanwhile, as shown in 7b, the lower end of the capillary storage member 30 is matched with the lower end of the tube 26 so that a space (spacer T4) is formed between the lower end and the writing member 16. When the capillary storage member 30 and the writing member 16 is spaced apart to prevent the movement of the ink, in this case, it is preferable to form the communication portion in the lower end of the tube (26). This is to allow the ink absorbed in the capillary storage member 30 to be moved back to the feeder 25 through the slots 52A and 52B of the communicating portion or through holes 52C and the mesh 52D.

In addition, as shown in 7c and 7d, the upper end portion of the writing member 16 is radially extended to form a connecting portion 16A so as to be spaced apart between the bottom surface of the lower end of the capillary storage member 30 and the upper surface of the connecting portion 16A. When the portion T4 is formed, the ink supplied to the writing member 16 does not move to the capillary storage member 30, but the ink of the capillary storage member 30 is separated from the spaced portion T4. It can be moved to the writing member 16 through.

As such, by forming the separation part T4 between the lower end of the capillary storage member 30 and the writing member 16, the ink of the writing member 16 may be prevented from being absorbed by the capillary storage member 30. Will be.

On the other hand, Figure 8a shows a third embodiment according to the present invention.

In the writing instrument according to the third embodiment as shown in FIG. 8A, the capillary storage member 30 is divided into a lower storage member 32, an intermediate storage member 34, and an upper storage member 36. , A lower gap T2 is formed between the lower storage member 32 and the intermediate storage member 34, and an intermediate gap T3 is formed between the intermediate storage member 34 and the upper storage member 36. A buffer gap T1 is formed between the upper storage member 3 ^ and the separation wall 22, and a spaced portion T4 is formed between the lower end of the lower storage member 32 and the writing member 16. The configuration is the same as that of the first embodiment.

The buffer gap T1, the lower gap T2, the intermediate gap T3, and the separation part T4 are for preventing the ink from being easily moved. Moreover, it is for distinguishing the function of each member 32,34,36.

Referring to the operation of the writing instrument according to the third embodiment configured as described above are as follows.

As shown in FIG. 8A, when the ink storage unit 15 does not receive internal pressure, the stored ink is transferred to the writing member 16 by a feeder 25 installed in the central supply path 23.

When the ink stored in this way is supplied to the writing member 16 along the feeder 25, the amount of air supplied is the air supply groove 14 formed by the rib 12 and the air / ink exchange unit 21. It is supplied to the ink storage unit 15 through.

In this state, when the pressure rises inside the ink storage unit 15 according to various external conditions, the ink in the ink storage unit 15 is more than necessary (as increased pressure) and the feeder 25 and the air. It is supplied to the upper storage member 36 and the intermediate storage member 34 of the feeder 25 and the capillary storage member 30 through the ink exchange unit 21.

At this time, the ink supplied excessively to the feeder 25 is permeated into the intermediate storage member 34 through the slots 52A and 52B of the communicating portion or through holes 52C or mesh 52D.

That is, when the ink is excessively supplied, the ink penetrates into the slots 52A, 52B, the through hole 52C, and the like of the communicating portion. If this phenomenon continues, the extruded ink is the capillary storage member surrounding the tube 26. It is absorbed by the intermediate storage member 34 of (30). At this time, although the capillary storage member 30 and the feeder 25 are spaced apart by the tube 26, as described above, a part of the over-supplied ink is the capillary storage member 30 through the communication hole of the communication portion. ) Is absorbed.

In this process, the excessively supplied ink due to the increase in the internal pressure is received in the upper storage member 36 through the air / ink exchanger 21, and partially in the intermediate storage member 34 of the capillary storage member 30. On the other hand, some of the ink supplied to the writing member 16 is absorbed and received by the lower storage member 32 in contact with the writing member 16, which is a liquid ink is lowered by gravity during writing. Since the movement to the lower storage member 32 through the lower gap (T2).

The ink moved to the lower storage member 32 moves to the writing member 16 through the spacer T4 due to the above-described action, but the ink of the writing member 16 moves to the spacer T4. May not be moved to the lower storage member 32. This is possible because the liquid is moved downward by gravity and is in particular spaced apart by the spacer T4.

Therefore, the over-supplied ink can be sufficiently accommodated in the capillary storage member 30, and the phenomenon that the ink of the writing member 16 is absorbed back into the lower storage member 32 is prevented, which is the capillary storage member ( 30 is spaced apart from the feeder 25, so that the ink is not always accommodated in the capillary storage member 30 so that it always has a sufficient capacity, so that the ink can be sufficiently accommodated when the ink is excessively supplied. This is because the ink of the writing member 16 is not absorbed into the capillary storage member 30 by the spaced portion T4.

On the other hand, when the ink contained in the capillary storage member 30 becomes normal as the internal pressure of the ink storage unit 15 decreases, the ink may be returned to the ink storage unit 15 by the capillary phenomenon of the air / ink exchange unit 21. Then, the feeder 25 returns back to the feeder 25 through the slots 52A and 52B or the through hole 52C. In addition, if the consumption proceeds from the writing member 16, it is supplied to the writing member 16 through the lower storage member (32).

When the movement of the ink is generated in this way, the external air is supplied to the ink storage unit 15 through the air supply groove 14 and the air / ink exchange unit 21.

When the ink supplied excessively in the above process is accommodated in the capillary storage member 30, some of the ink is accommodated in the upper storage member 36 through the air / ink exchange unit 21 as described above. When the internal pressure is lowered, the ink storage unit 15 returns to the ink storage unit 15.

At this time, since the upper storage member 36 and the intermediate storage member 34 are spaced apart by the intermediate gap T3, when the upper storage member 36 exceeds the capacity to receive the over-supplied ink, the excess is exceeded. The received ink is moved to the intermediate storage member 34 through the intermediate gap T3.

In addition, since the buffer gap T1 is formed between the upper storage member 36 and the separation wall 22, ink is not easily absorbed into the upper storage member 36.

8B shows a writing instrument according to the fourth embodiment.

The writing instrument according to the fourth embodiment as shown in FIG. 8B has the exception that the upper storage member 36 contacts the separating wall 22 and the lower storage member 32 contacts the writing member 16. It is the same as the structure of the third embodiment.

9A, 9B and 9C show a fifth embodiment of the writing instrument according to the present invention. That is, as shown in FIG. 9A, the writing implement according to the fifth embodiment includes a horizontal end 42 and a vertical end 44. The horizontal end 42 and the vertical end 44 are formed in a “T” shape. A plurality of horizontal protrusions 42A are formed on the bottom of the horizontal end 42, and the outer peripheral surface of the vertical end 44 A plurality of vertical protrusions 44A are formed to protrude.

Therefore, when the vertical end 44 is inserted into the central supply path 23 such that the horizontal protrusion 42A is in close contact with the upper surface of the separating member 20, the bottom surface and the separating member 20 of the horizontal end 42 are separated. A horizontal supply path 42B is formed between the upper surfaces of the upper and lower surfaces, and the vertical supply path 44B is formed between the vertical end 44 and the inner wall of the central supply path 23. And the horizontal supply path 42B is a supply path connected at right angles.

As such, when the internal pressure increases by various external conditions in the state in which the pressure reducing member 40 is installed in the central supply path 23, the increased internal pressure is applied to the upper surface of the horizontal end 42 of the pressure reducing member 40. It does not act directly on the central supply path (23).

That is, as shown in FIG. 9C, the increased internal pressure acts horizontally on the horizontal supply path 42B and then acts vertically on the vertical supply path 44B, thereby gradually decreasing the applied pressure. This prevents the overfeed of ink into the central supply path 23.

In other words, when the internal pressure rises in a state in which the supply path is bent at right angles as in the shape of the horizontal supply path 42B and the vertical supply path 44B as shown in FIG. 9C, the elevated pressure is at right angles. The friction loss caused by the flow of the fluid is generated while acting on the bent horizontal supply path 42B and the vertical supply path 44B, and also energy loss is generated along the flow direction, which is ultimately applied to the central supply path 23. The pressure is to be reduced, thereby preventing overfeed of ink.

At this time, the smaller the gap between the vertical supply path 44B and the horizontal supply path 42B, the larger the energy loss and the smaller the pressure applied thereto, thereby improving the ink outflow prevention effect.

The writing instrument according to the present invention is connected to the capillary storage member accommodating the excessively supplied ink and the feeder installed in the central supply path in a spaced apart state, so that the writing instrument always has the ability to sufficiently receive the ink, thereby overfeeding The phenomenon that the ink is directly supplied to the writing member can be prevented, and the ink supply passage and the air supply passage are formed separately, thereby providing an effect of smoothly supplying the ink, and the lower end of the capillary storage member and the writing member are spaced apart. As a result, the ink of the writing member is prevented from being absorbed back into the capillary storage member.

In addition, the capillary storage member and the feeder are connected to the communication unit in a spaced apart state by the tube, so that the capillary storage member and the feeder are not subject to the material selection (material according to the size of the capillary force), and the lower portion of the capillary storage member and When the writing member is spaced by the spacer, the writing member and the capillary storage member are not affected by the material selection.

According to the pressure reducing member according to another embodiment of the present invention, even when the internal pressure of the ink reservoir increases, the phenomenon in which the ink is excessively supplied due to the pressure applied to the feeder is substantially reduced by the supply path formed to be bent at right angles. An effect that can be prevented is provided.

Claims (21)

A rib 12 is formed on the inner wall to form an air supply groove 14 communicating with the outside, and at the end, the writing member 16 is installed in the axial direction; A partition wall 22 inserted into the body 10 and having an air / ink exchange part 21 so that the interior of the body 10 is divided into an ink reservoir 15 and a capillary reservoir 17; In addition, the bottom surface of the separation wall 22 is formed to extend directly below, the central supply path 23 is formed therein, and the capillary reservoir 17 and the central supply path 23 in partial communication with the ink is alternating Separating member 20 is composed of a tube (26) having a communication portion to be installed inside the main body (10); A feeder 25 installed at the central supply path 23 so that a lower end thereof contacts the writing member 16; And A capillary storage member (30) installed in the capillary reservoir (17) to be spaced apart from the feeder (25) by the tube (26); Writing instrument, characterized in that consisting of. The writing instrument as set forth in claim 1, wherein said communicating portion comprises a plurality of closed slots (52A). The writing instrument as set forth in claim 1, wherein said communicating portion comprises a plurality of slots (52B) opened downward. The writing instrument as set forth in claim 1, wherein said communicating portion comprises a plurality of through holes (52C). The writing instrument as set forth in claim 1, wherein said communicating portion is made of a mesh (52D). The writing instrument as set forth in claim 1, wherein a distance L between the central supply path and the capillary reservoir 17 is 0.1 mm-0.5 mm. The writing instrument according to any one of claims 1 to 5, wherein the communicating portion is formed integrally with the tube (26). The writing instrument according to any one of claims 1 to 5, wherein the communicating portion is formed separately from the tube (26) and installed in the tube (26). 9. The writing instrument as claimed in claim 8, wherein the communicating portion is formed of a hollow communicating member (50) and fitted to the tube (26). The writing instrument as claimed in claim 8, wherein the communicating portion is formed of a hollow communicating member (50) and fastened to the tube (26). 9. The writing instrument as set forth in claim 8, wherein the communicating portion is formed of a hollow communicating member (50) and is fitted to the feeder (25) to be in contact with an end of the tube (25). The writing instrument as claimed in claim 1, wherein the capillary storage member is formed in one piece. The writing instrument according to claim 1 or 12, wherein an upper surface of the capillary storage member 30 is in contact with a bottom surface of the separation wall 22, and a lower end of the capillary storage member 30 is in contact with the writing member 16. . The method of claim 1 or 12, wherein a buffer upper gap (T1) is formed between the upper surface of the capillary storage member 30 and the bottom surface of the separation wall 22, the lower end of the capillary storage member 30 Writing means, characterized in that the separation portion (T4) is formed between the writing member (16). 15. The writing instrument as claimed in claim 14, wherein the spacer (T4) has an inner circumferential surface of the capillary storage member (30) and an outer circumferential surface of the writing member (16) in parallel. 15. The writing instrument according to claim 14, wherein the spacer portion (T4) is formed in the upper and lower narrow shapes on the lower inner circumferential surface of the capillary storage member (30). The lower portion of the capillary storage member 30 is located at the end of the tube 26, and the connecting portion 16A is radially formed on the upper portion of the writing member 16. It is extended to the writing instrument, characterized in that formed between the capillary storage member 30 and the connecting portion (16A). The writing instrument according to claim 1, wherein the capillary storage member (30) is divided into an upper storage member (36), an intermediate storage member (34), and a lower storage member (32). 19. The method of claim 18, wherein the upper surface of the upper storage member 36 is in contact with the bottom surface of the separation wall 22, the lower end of the lower storage member 32 is in contact with the writing member 16 Writing instruments. A buffer gap (T1) is formed between an upper surface of the upper storage member (36) and a bottom surface of the separation wall (22), and a bottom surface of the upper storage member (36) and the intermediate storage member. An intermediate gap T3 is formed between the upper surfaces of the 34, a lower gap T2 is formed between the bottom surface of the intermediate storage member 34 and the upper surface of the lower storage member 32, and the lower storage member. Writing device, characterized in that the separation portion (T4) is formed between the lower end of the 32 and the writing member (16). According to claim 1, wherein the separation member 20 is provided with a pressure reducing member 40 for reducing the increased pressure when the internal pressure rise of the ink reservoir 12 to act on the feeder 26, The pressure reducing member 40 includes a horizontal end 42 having a plurality of horizontal protrusions 42A formed on a bottom thereof; And Is formed integrally on the bottom of the horizontal end 42, the outer peripheral surface is composed of a vertical end 44, a plurality of vertical projections (44A) formed, A horizontal supply path 42B is formed between the bottom of the horizontal end 42 and the upper surface of the division member 20, and between the inner circumferential surface of the central supply path 23 and the outer circumferential surface of the vertical end 44. The writing instrument characterized in that the vertical end (44) is inserted into the central supply path (23) so that a vertical supply path (44B) connected to the horizontal supply path (42B) at right angles is formed.