TW201318886A - Coating apparatus - Google Patents

Abstract

The topic of the present invention is to provide a coating apparatus which is easy to make, whose strength of parts is high, and which can be applied to write quickly during the initial stage of usage (the first time to supply the ink to the ink suction storage body from the ink box). The coating apparatus 1 of the present invention comprises: a storage part 3 of the coating liquid filled with the coating liquid 7 to flow therein; the coating body 6 to coat the coating liquid 7; the coating liquid sucking body 4 which is impregnated with the coating liquid 7 at between the storage part 3 of the coating liquid and the coating body 6; and the forming part 5 of flow channel having the flow channel for the coating liquid 7 to flow between the storage part 3 of the coating liquid and the coating liquid sucking body 4; a protrusion part 11 disposed on the aforementioned forming part 5 of flow channel in the coating apparatus 1, which has a hollow portion 21 therein, and which has more than 2 holes communicating with the hollow portion 21.

Description

Coating tool

The present invention relates to a coating material for supplying a coating liquid to be applied to a coating body such as a pen tip, and more particularly to a coating material having a coating liquid supply mechanism for stabilizing a supply amount of a coating liquid to an application body. By.

In addition, the applicator in the present specification is not limited to a stationery such as a felt pen, a pen, a column mark, or a whiteboard mark, and is applied to any object such as a paper surface or a white plate, which is a liquid containing a correction pen. It is used as the general name of the person who is on the top.

As a coating liquid supply mechanism for stably supplying a coating liquid to a pen tip (application body), a technique of providing a core cotton (coating liquid sorbent) which can impregnate an ink (coating liquid) between a pen tip and an ink cartridge is known. According to this technique, the core cotton absorbs the remaining ink, so that the ink tip is not excessively supplied to the tip. Further, when the ink of the nib is insufficient, the ink absorbed by the core cotton is supplied to the nib, so that the supply of the ink is prevented from being insufficient. Thereby, the ink can be stably supplied to the pen tip.

As a coating tool using this technique, for example, a liquid-liquid type stationery disclosed in Patent Document 1 is known. The direct liquid type stationery is called a so-called non-operation type stationery. The so-called non-operating stationery is a stationery that can supply ink to the nib without the need to strike a pen tip or a pen shaft for supplying ink. In the invention disclosed in Patent Document 1, the flow path of the outside air and the ink is made by using a plurality of communication tubes connecting the ink tank of the direct liquid type stationery and the ink absorbing body (coating liquid sorbent body). Separation. With this point, you can quickly carry out external gas and Since the ink is alternated, it is possible to shorten the time before the writing can be performed in the initial use (when the ink cartridge is supplied to the ink absorbing body for the first time).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2006-212884

However, in the invention disclosed in Patent Document 1, it is necessary to have a plurality of communication tubes in its construction. Based on this point, there is a problem that the design limit of the thickness or thickness of the communication tube becomes larger than that in the case where one communication pipe is provided, and the formation of the component becomes complicated. Further, since two or more connected pipes are arranged in a group, in the case where any one of the communicating pipes is suddenly damaged, there is a possibility that the stationery cannot function.

Further, in the applicator having two or more communication tubes provided in Patent Document 1, when the communication tube is directly integrated in the stationery main body, there is a case where a plurality of communication tubes are provided and the diameter of the main body must be thickened. The constraints on class design.

In addition, when a plurality of communicating tubes are inserted into the core cotton (ink absorbing body) as shown in Patent Document 1, the use is difficult to assemble after disassembly. In other words, if the communication tubes are removed from the core cotton once for the replacement of the members or the replenishment of the coating liquid, etc., it is necessary to insert the positions of the respective communication tubes so as to be inserted into the original position. There is a problem of assembly difficulties.

Accordingly, it is an object of the present invention to provide an applicator that is non-operating The coating tool of the type is easy to manufacture, and the strength of the part can be improved, and the writing tool can be quickly written when the initial use (when the ink is supplied from the ink tank to the ink absorbing body for the first time).

An applicator according to one aspect of the present invention for solving the above problems, comprising: a coating liquid storage portion through which a coating liquid to be filled can flow; and an application body for applying a coating liquid; A coating liquid absorbing body containing an impregnation coating liquid is provided between the coating liquid accommodating portion and the coating body, and a flow path forming portion having a flow path through which the coating liquid can flow between the coating liquid accommodating portion and the coating liquid absorbing body is provided. Further, the flow path forming portion has a protruding portion which protrudes toward the application body side, and has a hollow portion inside the protruding portion, and two or more communication holes communicating with the hollow portion are provided.

In this aspect, the coating liquid accommodating portion (ink cartridge) and the coating liquid absorbing body (core cotton) have a protruding portion (communication tube) having a hollow portion therein, and the protruding portion has a hollow portion communicating with the inside. More than 2 connected holes.

In this aspect, the number of the protruding portions (communication tubes) connecting the coating liquid storage portion and the coating liquid absorbing body is only one. Therefore, compared with the case where a plurality of communication pipes are produced, the communication pipe has a high degree of freedom in design, and it is possible to form, for example, a communication pipe having a large diameter and a high strength. Based on this, it is possible to use an ink that is difficult to use in a communication tube having a small diameter (for example, an ink having a high surface tension), so that a wide variety of coating liquids can be used for the coating tool. In addition, this situation also has the advantage that the connecting pipe is not easily damaged and is not prone to sudden failure.

Further, the diameter of the base end portion of the protruding portion (communication tube) can be made thinner than in the case where a plurality of communication tubes are provided. Based on this point, it will burst When the outlet portion and the body member are separately formed, they can be attached to the body member having a smaller shaft diameter, and the shaft portion of the body member itself can be made thinner by integrating the protruding portion with the body member. That is, the present invention has an advantage that the body shaft diameter of the applicator can be made finer.

Further, since there are two or more communication holes that communicate with the hollow portion, the ink can be discharged from the different holes or the outside air can be introduced, and the ink in the applicator housing portion can be quickly alternated with the outside air.

Preferably, the flow path forming portion has a pressing portion, and at least a part of the pressing portion contacts the coating liquid absorbing body from the side of the coating liquid accommodating portion.

In the following, for the sake of convenience, the "coating liquid side" is referred to as "from the top", the "coated body side" is referred to as "from the bottom", and the "applied side" is referred to as the "lower end". "etc.

According to the above configuration, the upper portion of the coating liquid absorbing body (that is, the portion on the side of the coating liquid accommodating portion) is pressed by the pressing portion, and the void ratio is lowered in the vicinity of the lower end of the coating liquid absorbing body (that is, the end on the coating body side). section. That is, in the vicinity of the upper end of the coating liquid sorbent, a low-density portion having a relatively high void ratio is formed, and in the vicinity of the lower end, a high-density portion having a relatively low void ratio is obtained. In this manner, when a density difference is formed between the upper end portion and the lower end portion of the coating liquid sorbent body, the capillary force near the lower end of the coating liquid sorbent body is stronger than that in the vicinity of the upper end of the coating liquid sorbent body.

Based on this point, even if the ink does not move downward by its own weight, even if the viscosity of the ink is high, or the aperture of the communicating tube is small, the ink can be introduced into the coating liquid sorbent by capillary force, and The ink introduced into the coating liquid sorbent body is surely moved downward. That is, it can be more stable The tip of the pen supplies ink.

An applicator according to another aspect of the present invention for solving the above problems, comprising: a coating liquid storage portion through which a coating liquid to be filled can flow; and an application body for applying a coating liquid; A coating liquid absorbing body containing an impregnation coating liquid is provided between the coating liquid accommodating portion and the coating body, and a flow path forming portion having a flow path through which the coating liquid can flow between the coating liquid accommodating portion and the coating liquid absorbing body is provided. And the flow path forming portion includes at least one protruding portion and a pressing portion, the protruding portion protrudes toward the application body side, and has a hollow portion formed therein, and is provided with a communication hole that communicates the hollow portion and the outside, and the pressing portion At least a part of the coating liquid accommodating portion side is in contact with the coating liquid absorbing body.

In this aspect, the flow path forming portion has a pressing portion, and at least a part of the pressing portion contacts the coating liquid absorbing body from above (on the side of the coating liquid accommodating portion). By pressing the coating liquid sorbent body from above in this manner, the capillary force of the coating liquid sorbent body can be increased. Therefore, even if the ink does not move downward by its own weight, even if the ink viscosity is high or the aperture of the communicating tube is small, the ink can be introduced into the coating liquid sorbent body by capillary force. That is, a wide variety of coating liquids can be used in the communication tube having a small diameter.

Further, when the upper portion of the coating liquid sorbent body is pressed by the pressing portion, a portion where the void ratio is lowered near the lower end of the coating liquid absorbing body is formed. In other words, a high-density portion having a relatively low void ratio near the lower end of the coating liquid sorbent body has a low-density portion having a higher void ratio than the vicinity of the lower end of the upper end of the coating liquid sorbent. That is, a density difference is formed between the upper end portion and the lower end portion of the coating liquid sorbent body, thereby becoming a lower end of the coating liquid sorbent body. The near capillary force is stronger than the capillary force near the upper end of the coating liquid sorbent body. Here, since the coating liquid flows from the portion where the capillary force is small to a large portion, the ink introduced into the coating liquid absorbing body can be surely moved downward. That is, the ink can be supplied to the pen tip more stably.

Preferably, the pressing portion is a flat-shaped projection that protrudes substantially perpendicularly outward from a side surface of the protruding portion, and extends from a proximal end portion of the protruding portion in a protruding direction to a vicinity of the front end portion.

According to this configuration, it is possible to provide an applicator having a high-strength pressing portion and having a protruding portion (communication tube) which is easy to manufacture.

Preferably, the pressing portion has a length that is substantially perpendicular to the protruding direction of the protruding portion and the protruding direction of the pressing portion, that is, the thickness of the pressing portion is 1.0 mm or more and 3.0 mm or less.

In the coating tool of this configuration, the thickness of the pressing portion is 1.0 mm or more. Thereby, the void ratio lowering action in the vicinity of the lower end of the coating liquid sorbent body can be sufficiently exerted. On the other hand, if the thickness of the pressing portion is too large, it is difficult to store it in the coating tool (the coating device of the present invention is used by a user, so the outer diameter naturally has a limit), and a groove is formed during molding. If it is a bad phenomenon, set it to 3.0 mm or less. By setting the thickness of the pressing portion in this manner, the supply of ink to the pen tip can be stabilized, and the coating liquid can be prevented from leaking out.

The length of the protruding portion in the protruding direction is preferably 2.0 mm or more and 4.5 mm or less.

According to this configuration, since the length of the pressing portion in the protruding direction is 2.0 mm or more, the void ratio in the vicinity of the lower end of the coating liquid absorbing body can be sufficiently exhibited. Decline effect. On the other hand, since the workability at the time of assembling the applicator is lowered, it is preferable to make the length of the protruding direction to be 4.5 mm or less. Thereby, the ink can be supplied to the pen tip more stably, and the coating liquid can be prevented from leaking out.

Preferably, the pressing portion is formed in plural, and at least one of the pressing portions is provided at a position facing the opposing portion from the protruding portion of the pressing portion to the pressing portion of the other pressing portion. The distance between the ends is 8.5 mm or more and 14.0 mm or less.

In this configuration, the pressing portion is formed in plural, and at least one of the pressing portions is provided at a position facing the protruding portion, and the protruding end of one of the pressing portions is extended to the protruding end of the other pressing portion. The distance is 8.5 mm or more and 14.0 mm or less, and more desirably 10.5 mm or more and 13.5 mm or less. Therefore, the ink can be supplied to the pen tip more stably, and the coating liquid can be prevented from leaking out.

Preferably, the pressing portion has a flat plate shape and extends from a base end portion of the protruding portion in a protruding direction to a vicinity of the front end portion.

According to this configuration, it is possible to provide an applicator having a high-strength pressing portion and having a protruding portion (communication tube) which is easy to manufacture.

Preferably, two or more communication holes are provided, and at least one of the communication holes is provided near the front end of the protruding portion, and the other communication hole is provided closer to the base end side of the protruding portion than the communication hole.

In this configuration, a distance is provided between the communication hole provided on the distal end side and the other communication hole, and the protruding direction of the protruding portion (the axial direction of the protruding portion). Therefore, compared with the case where the protruding direction of the protruding portion of each of the communication holes is the same, the communication hole for supplying the ink and the connection for introducing the external air can be connected. The through hole is disposed at the separated position, so that the introduction of the outside air can be performed more surely.

Preferably, the end of the pressing portion on the application body side is located closer to the coating liquid storage portion than the communication hole, and the protruding portion is in contact with the coating liquid absorbing body.

In this configuration, the lower end of the pressing portion (the end on the application body side) is located above the communication hole (on the side of the coating liquid storage portion). Therefore, since the pressing portion does not hinder the contact between the communication hole and the coating liquid absorbing body, the communication hole can be surely brought into contact with the coating liquid absorbing body.

Specifically, when the lower end of the pressing portion is located below the communication hole or when the lower end of the pressing portion is at the same position as the height direction of the communication hole, the pressing portion presses the coating liquid absorbing body in a direction away from the protruding portion, Therefore, there is a possibility that the communication hole formed in the protruding portion is in contact with the coating liquid absorbing body. However, since the pressing portion is located above the communication hole in this configuration, the contact between the coating liquid absorbing body located on the lower side of the protruding portion and the communication hole is not hindered.

Further, when the protruding portion of the communicating tube contacts the coating liquid absorbing body, the coating liquid absorbing body can be disposed so as to cover the opening of the hole provided in the protruding portion. Based on this point, the coating liquid is sucked by the capillary force of the coating liquid absorbing body, so that the amount of outflow per unit time of the coating liquid from the communication tube is stabilized. That is, a state in which the flow of the coating liquid is stagnated due to the surface tension of the coating liquid does not occur at the front end of the communication tube.

Preferably, one part of the coating liquid absorbing body is disposed inside the flow path forming portion.

With this configuration, even if the viscosity of the ink is high, or the diameter of the protruding portion is larger In the case of small ink, the ink does not move to the lower discharge port by its own weight. If the ink contacts the coating liquid absorbing body located inside the flow path forming portion, the capillary force of the coating liquid sorbent body can be used. The ink moves down. That is, the ink can be surely moved toward the coating liquid sorbent side, so that the supply of the ink can be stabilized.

Preferably, the flow path forming portion is formed by a base portion and a protruding portion, and the base portion and the protruding portion have a cylindrical shape having a different diameter, and have hollow holes that communicate with respective central portions, at the front end of the protruding portion. A hole communicating with the hollow hole is provided in the vicinity of the circular surface and the front end of the side surface, respectively.

According to this configuration, it is possible to provide an applicator which is easy to attach to the main body of the applicator and which has a protruding portion (communication tube) which is easy to manufacture and has high strength.

Preferably, the central axis of the communication hole formed in the vicinity of the front end of the side surface of the protruding portion extends substantially in parallel with the protruding direction of the pressing portion.

The applicator of the present invention may be configured such that a communication hole for introducing air into the coating liquid storage portion separately provided with a communication hole for supplying ink to the coating liquid absorbing body side is substantially parallel to a protruding direction of the pressing portion. Extend the ground.

Preferably, the flow path forming portion and the coating liquid storage portion are integrally formed.

According to this configuration, the coating liquid can be replenished by replacing the flow path forming portion in a state where the coating liquid has been filled in the coating liquid storage portion with the previous flow path forming portion. Therefore, it is easier to replenish the coating liquid than when the coating liquid storage portion in the coating body is replenished with another member such as a dropper.

Further, the flow path forming portion and the coating and storage portion are integrally formed to reduce zero The number of pieces also has the advantage of reducing manufacturing costs and simplifying assembly.

Preferably, the flow path forming portion and the coating liquid storage portion are detachably attached.

According to this configuration, the coating liquid can be replenished by replacing the coating liquid storage portion. Therefore, it is easier to replenish the coating liquid than when the coating liquid storage portion in the coating body is replenished with another member such as a dropper.

Preferably, the coating liquid storage portion is provided with a accommodating portion side through hole that communicates the outside and the internal space on the application body side, and the flow path forming portion is formed by the base portion and the protruding portion, and is formed in the base portion. When the cylindrical portion and the tubular portion are in communication with the hollow portion of the protruding portion, when the flow path forming portion and the coating liquid receiving portion are attached, the receiving portion side through hole communicates with the tubular portion.

According to this configuration, the flow path forming portion and the coating liquid storage portion can be easily attached and detached.

Preferably, the absorbing body accommodating portion is formed in a portion facing the coating body, the coating liquid absorbing body is disposed in the absorbing body accommodating portion, and the absorbing body contracting member is disposed in the absorbing body accommodating portion. The sorbent contracting member comes into contact with the coating liquid sorbent, and the coating liquid sorbent body is in a contracted state.

In this configuration, the sorbent contracting member is disposed at the position where the coating liquid sorbent is disposed. Further, the sorbent contracting member comes into contact with the coating liquid sorbent, whereby the coating liquid sorbent body is in a contracted state. That is, the sorbent shrinkage member causes the coating liquid to sorb the body into a pressed state, thereby absorbing the body of the coating liquid. A suitable portion is formed with a portion where the void ratio is lowered.

Here, as described above, the high-density portion where the void ratio of the coating liquid sorbent is lowered is higher in capillary force than the low-density portion having a higher void ratio. In other words, by bringing the sorbent shrinkage member into contact with the coating liquid sorbent, a portion having a high capillary force and a portion having a low capillary force are formed on the coating liquid sorbent. Further, since the coating liquid flows from a portion having a small capillary force to a larger portion, if a portion having a higher capillary force and a lower capillary force are formed on the coating liquid sorbent body, the introduction of the coating liquid can be controlled. The flow of ink in the body. Thereby, the ink introduced into the coating liquid sorbent can be stably supplied to the pen tip.

Further, in the portion where the void ratio of the coating liquid absorbing body is lowered, the pores (slits) formed between the fibers and the fibers are small, and the pores are formed by allowing an appropriate amount of the coating liquid to ooze out. In other words, the portion where the void ratio of the coating liquid sorbent decreases is such that the impregnated coating liquid does not flow out to other portions at a time. In other words, by forming a portion where the void ratio is lowered in the vicinity of the lower end of the coating liquid sorbent body, and preventing a portion of the formed void ratio from leaking out a large amount of the coating liquid in a short time, the coating liquid from the core cotton can be prevented from leaking out. .

The sorbent contraction member may be configured to be disposed at an end portion of the absorbing body accommodating portion on the application body side.

That is, it is also possible to press the coating liquid sorbent body from below.

Preferably, in the coating system rod-shaped body, the absorbing body shrinkage member is an annular body, and one of the coating bodies is located in the absorbing body accommodating portion, and the absorbing body contracting member is disposed in a state of surrounding the coated body.

In this case, it is also possible to insert a part of the coating body into the absorbing body contracting member. The composition of the installation.

Preferably, the sorbent contracting member has a protruding portion that protrudes toward the coating liquid absorbing body side.

In this configuration, since the sorbent contracting member has the protruding portion that protrudes toward the coating liquid absorbing body side, when the absorbing body shrinks the absorbing body of the coating liquid into a pressed state, the absorbing body can be sorbed. The amount of the immersion body of the coating liquid of the body shrinkage member is increased. Thereby, the void ratio of a specific portion of the coating liquid sorbent body can be further lowered.

The sorbent contraction member may be formed by forming a plurality of protrusions on the top surface, and the plurality of protrusions are arranged in a row shape at intervals in the circumferential direction.

Preferably, at least a part of the flow path forming portion is inserted into the coating liquid absorbing body from the coating liquid accommodating portion side, and a portion of the flow path forming portion into which the liquid absorbing body is applied is inserted, and the length of the insertion direction is 15.0 mm or more and 25.0 mm or less.

In this configuration, at least a part of the flow path forming portion is inserted into the coating liquid absorbing body from above. Therefore, the coating liquid sorbent body is pressed downward to be in a contracted state by the volume of the portion into which the flow path forming portion is inserted. In other words, the coating liquid absorbing body is brought into a pressed state by the flow path forming portion, and a portion where the void ratio is lowered is formed in an appropriate portion of the coating liquid absorbing body.

Thereby, since the density of the coating liquid sorbent body is different, the ink introduced into the coating liquid sorbent can be stably supplied to the pen tip as described above, and the coating liquid can be prevented from leaking out of the core cotton.

Further, in the applicator of the present configuration, the length of the insertion direction of the coating liquid absorbing body by the flow path forming portion is 15.0 mm or more and 25.0 mm. Hereinafter, the ink can be supplied to the pen tip more stably, and the coating liquid can be prevented from leaking out.

Preferably, the absorbing body accommodating portion is formed in a portion of the coating body, the coating liquid absorbing system is disposed in the absorbing body accommodating portion, and the absorbing body contracting member is disposed in the absorbing body accommodating portion. A pressing protrusion that protrudes from the outside toward the inside and extends in a direction including the vertical component is formed on the inner peripheral surface of the absorbing body accommodating portion. Here, the "up and down direction" means the direction from the coating liquid storage portion to the application body.

In this configuration, a pressing protrusion is formed on the inner circumferential surface of the absorbing body accommodating portion on which the coating liquid absorbing body is disposed. Further, the coating liquid sorbent body is brought into a contracted state by bringing the pressing protrusion into contact with the coating liquid absorbing body. In other words, the coating liquid sorbs the body into a pressed state by the pressing protrusion, and a portion where the void ratio is lowered is formed in an appropriate portion of the coating liquid absorbing body.

Thereby, since the density of the coating liquid absorbing body is different, the ink introduced into the coating liquid sorbent can be stably supplied to the pen tip as described above, and the coating liquid can be prevented from leaking out of the core cotton.

The length of the pressing protrusion in the extending direction is preferably 5.0 mm or more and 15.0 mm or less.

In this configuration, since the length of the pressing projection in the extending direction is 5.0 mm or more and 15.0 mm or less, the ink can be supplied to the pen tip more stably, and the coating liquid can be prevented from leaking out.

The length of the protruding direction of the pressing protrusion is preferably 0.5 mm or more and 2.0 mm or less.

In this configuration, the ink can be supplied to the pen tip more stably, and can be prevented further Stop the coating solution from leaking out.

Preferably, the length of the pressing protrusion in the direction in which the pressing protrusion extends and the protruding direction of the pressing protrusion are substantially 0.5 mm or more and 2.0 mm or less.

In this configuration, the ink can be supplied to the pen tip more stably, and the coating liquid can be prevented from leaking out.

Preferably, the front end of the protruding portion is in contact with one end side of the coating liquid absorbing body, and the other end side of the coating liquid absorbing body is paired with the one end side. When the coating body is in contact with each other, the protruding portion and the coating body are disposed at a position separated from each other by the coating liquid absorbing body therebetween, and are not in direct contact with each other, and the coating liquid flowing out from the protruding portion to the outside of the protruding portion is passed through The coating liquid is supplied to the coated body by absorbing the body.

In this configuration, the ink can be supplied to the pen tip more stably.

According to the present invention, it is easy to manufacture a coating tool and has an effect of being able to design a part with high strength. In addition, there is an effect that writing can be performed quickly when the coating tool is used initially.

Hereinafter, embodiments of the present invention will be described. In the following description, the "front and rear" relationship is defined by using the pen tip side as the front side and the ink tank side as the rear side.

Specifically, the applicator 1 according to the first embodiment of the present invention is a mark for a whiteboard, and as shown in FIG. 1, the main body tube 2, the core cotton 4 (coating liquid sorbent), The relay core 5 (flow path forming portion) and the pen tip 6 (application body) are formed. Further, the hollow portion inside the main body barrel 2 is partitioned back and forth by the relay core 5, and an ink tank 3 (coating liquid storage portion) capable of storing the ink 7 (coating liquid) is formed on the rear side of the intermediate core 5 A core cotton arranging portion 8 is formed at a portion on the front side of the relay core 5.

The main body cylinder 2 is a cylinder formed of a resin such as polypropylene or a suitable material such as a metal such as tantalum, brass or stainless steel. The body barrel 2 is formed by a front end portion 28 and a rear end portion 29, and the front end portion 28 and the rear end portion 29 are detachably mounted by means of a screw. The front end portion 28 has a shape that becomes fine as it goes to the front side. Further, inside the front end portion 28, there is a space 30 that communicates in the longitudinal direction, and the space 30 also becomes thinner as it goes to the front side.

The core cotton 4 is a well-known core cotton having a member which can impregnate the continuous pores of the ink 7. More specifically, it is formed of a suitable fiber such as an acrylic fiber, and the ink 7 can be impregnated inside.

The relay core 5 is a constituent member of the features of the embodiment, and will be described in detail below.

The relay core 5 is formed of a suitable material such as a synthetic resin such as polypropylene or polyacetal or a metal. Moreover, as shown in FIG. 2, the relay core 5 is formed by the protrusion part 11 and the base part 12. The protrusion 11 and the base portion 12 have the same cylindrical shape, and the diameter of the protrusion 11 is smaller than the diameter of the base portion 12. Further, the end portion of the protruding portion 11 and the end portion of the base portion 12 are continuous with a step of stacking two cylinders, and are disposed such that the protruding portion 11 and the central axis of the base portion 12 are identical. Specifically, the side of the one-side end of the protruding portion 11 is perpendicular to The surface of the base portion 12 in the longitudinal direction (the upper surface in Fig. 2) 25 is connected.

That is, the appearance of the relay core 5 is such that two cylindrical shapes are stacked, and the protruding portion 11 protrudes from the vicinity of the central portion of the surface 25 of the base portion 12. Further, at this time, the protruding direction of the protruding portion 11 is a direction perpendicular to the surface 25 of the base portion 12.

Further, the protrusion 11 is provided with two holes of the first hole 13 (communication hole) and the second hole 14 (communication hole).

The first hole 13 is provided on a circular surface 24 (the upper surface in Fig. 2, that is, the surface on the surface where the opposing projection 11 is in contact with the base portion 12) at the front end of the protruding portion 11 in the protruding direction. Further, the opening shape of the first hole 13 is circular, and the center of the opening overlaps with the central axis of the protruding portion 11. The diameter of the first hole 13 is not particularly limited, but is desirably 2.0 mm to 7.0 mm, more desirably 2.0 mm to 5.0 mm, and further desirably 2.5 mm to 3.0 mm. Further, it is desirable that the opening area of the first hole 13 is 3.14 mm ² (square millimeter) to 38.47 mm ² (square millimeter), and it is desirable to be more preferably 4.9 mm ² (square millimeter) to 7.07 mm ² (square millimeter).

The second hole 14 is provided on the side surface of the protruding portion 11 and, in detail, is provided in the vicinity of the front end of the protruding portion 11 in the protruding direction (the end portion on the opposite side to the base portion 12). Further, the second hole 14 has a circular opening shape similarly to the first hole 13. The diameter L4 of the second hole 14 is not particularly limited, but is preferably 1.0 mm to 5.0 mm, and more desirably 1.0 mm. Further, it is desirable that the opening area of the second hole 14 is 0.79 mm ² (square millimeter) to 19.63 mm ² (square millimeter), and it is desirable to be preferably 0.79 mm ² (square millimeter) to 7.07 mm ² (square millimeter). Further, the distance from the front end portion of the protruding portion 11 to the center of the second hole (L5 in Fig. 2) is not particularly limited, but is desirably 2.0 mm to 7.0 mm, and desirably more preferably 3.0 mm.

Here, since the second hole 14 is the side surface of the protruding portion 11, the opening direction of the first hole 13 and the second hole 14 is perpendicular. Further, since the second hole 14 is provided in the vicinity of the front end of the protruding portion 11 in the protruding direction, the first hole 13 and the second hole 14 are located in the protruding direction of the protruding portion 11 (the axial direction of the protruding portion 11). .

Next, the internal structure of the relay core 5 will be described. As shown in FIG. 3, the protruding portion 11 and the base portion 12 are each provided with hollow portions 21, 22 inside.

The hollow portion 21 is a space in which the cross-sectional shape is circular and extends. Specifically, the end portion on the base portion 12 side of the protruding portion 11 faces the first hole 13 such that the central portion of the protruding portion 11 extends in parallel with the longitudinal direction. The method is provided so as to be connected to the first hole 13. Further, the first hole 13 and the hollow portion 21 have the same cross-sectional diameter, and the centers of the openings are the same position. In other words, the protruding portion 11 has a substantially cylindrical shape by the hollow portion 21 and the first hole 13 penetrating the center portion. Further, the hollow portion 21 is also connected to the second hole 14, and the hollow portion 21 and the second hole 14 are perpendicularly intersected. That is, the hollow portion 21 is connected to the outside via the first hole 13 and the second hole 14.

Further, the hollow portion 22 is also a space in which the cross-sectional shape is circular and extends, and is provided such that the central portion of the base portion 12 extends in a direction parallel to the longitudinal direction. Further, the cross-sectional diameter of the hollow portion 22 is larger than the cross-sectional diameter of the hollow portion 21. Here, the base portion 12 has an opening 15 having a circular opening shape at an end portion (the end portion on the lower side in FIGS. 2 and 3) on the side opposite to the protruding portion 11, and the hollow portion 22 is connected to the outside via the opening 15. . Moreover, the opening 15 has the same cross-sectional diameter as the hollow portion 22. That is, the hollow portion 22 extends from the opening 15 to the end portion (the end portion on the upper side in FIGS. 2 and 3) at a position opposed to the opening 15, Further, the base portion 12 has a substantially bottomed cylindrical shape.

Here, the hollow portion 21 and the hollow portion 22 are connected via the connection hole 23 . In other words, at the end portion of the base portion 12 that faces the opening 15, a hole that penetrates the base portion 12 from the inside to the outside, that is, the connection hole 23 is provided. Here, the cross section of the connecting hole 23 is circular, and the cross-sectional diameter of the connecting hole 23 and the hollow portion 21 is the same as the central axis. That is, the hollow portion 21 coincides with the coupling hole 23, and just one through hole is formed.

Therefore, the relay core 5 has a shape in which two conduits having different diameters have a stepped relationship, and a hole that is connected to the inside is provided on the side surface of the end portion of the smaller diameter portion. Further, an inner space 27 (hollow hole) is formed inside the relay core 5. The internal space 27 is a space in which the hollow portion 21 of the protruding portion 11, the hollow portion 22 of the base portion 12, and the connecting hole 23 between the hollow portions 21, 22 are integrated. That is, the internal space 27 is such that the inside of the relay core 5 is hollowed out, and the overall shape of the internal space 27 is similar to the external shape of the relay core 5. Further, the internal space 27 is connected to the outside by the opening 15, the first hole 13, and the second hole 14. That is, the relay core 5 penetrates both end portions in the longitudinal direction by the internal space 27.

The nib 6 is a rod-shaped body formed of a material of a fiber bundle, a resin-processed body of a fiber bundle, a resin processed body of a fiber bundle, and a resin-processed body of a felt, and is used in the same manner as a well-known nib. The capillary phenomenon is performed by the toner 7 sucking the ink 7 from the role.

Next, the mounting structure of the applicator 1 of the present embodiment will be described with reference to Fig. 1 .

A relay core 5 is inserted inside the rear end portion 29 of the body barrel 2. Here, Since the inner diameter of the rear end portion 29 is substantially the same as the outer diameter of the base portion 12 of the relay core 5, the relay core 5 is fitted inside the rear end portion 29 to be fixed. At this time, the portion of the rear end portion 29 which is further rearward than the relay core 5 becomes the ink cartridge 3, that is, the space containing the ink 7.

Further, a pen tip 6 is attached to the front end portion of the front end portion 28. Further, a core cotton 4 is disposed inside the space 30 and on the rear side of the pen tip 6. Next, the ink 7 is filled to the ink tank 3, and the front end portion 28 is attached to the rear end portion 29, whereby the applicator 1 is assembled.

At this time, the inside of the main body barrel 2 is partitioned back and forth by the relay core 5, and the portion on the front side of the intermediate core 2 in the inside of the main body barrel 2 becomes the core cotton arrangement portion 8. In other words, the base portion 12 of the relay core 5 serves as a partition plate between the ink cartridge 3 and the core cotton arranging portion 8, and the hollow portion (internal space) 21 of the protruding portion 11 and the protruding portion 11 serves as a connection between the ink cartridge 3 and the core cotton. The connecting pipe of the part 8.

Further, the core cotton 4 is disposed in the core cotton arranging portion 8. The core cotton 4 contacts the rear end of the pen tip 6 and the front end portion (the front end in the protruding direction) of the protruding portion 11 of the relay core 5, and is disposed so as to cover the first hole 13 and the second hole 14.

Further, at this time, one portion of the rear end of the core cotton 4 can enter the hollow portion (internal space) 21 of the protruding portion 11 from the first hole 13 or the second hole 14. In other words, a part of the core cotton 4 may be disposed on the opening surface of the first hole 13 or the opening surface of the second hole 14 so as to be located further inside the protruding portion 11.

Hereinafter, the action of the applicator 1 of the present embodiment will be described with reference to Figs. 4 and 5 .

If the pen tip 6 is made downward for writing, as shown in FIG. 4(a), the ink 7 is moved from the inside of the ink cartridge 3 to the core cotton arranging portion 8 by the relay core 5 by gravity. move. Further, the ink 7 moving to the vicinity of the lower end of the protruding portion 11 of the relay core 5 is led to the lower side by its own gravity and the capillary force of the core cotton 4. Thereby, the ink 7 is supplied from the first hole 13 to the core cotton arranging portion 8. At this time, external air (minor air) is introduced into the ink cartridge 3 from the second hole 14 which is not used for the supply of the ink 7. Then, the ink 7 is exchanged with the outside air in the ink cartridge 3, and the ink 7 is quickly supplied from the first hole 13 to the core cotton arranging portion 8. Further, the second hole 14 is located closer to the ink cartridge 3 than the first hole 13, and is located above the first hole 13 when the pen tip 6 is directed to the lower side. Therefore, the ink 7 is supplied to the core cotton arranging portion 8 from the first hole 13 having a high water pressure, and the ink 7 is not supplied from the second hole 14.

Here, the size of the diameter or the area of the first hole 13 and the second hole 14 is set to the above-described desired size, and the distance between the second hole 14 and the tip end portion is the desired position, whereby the ink can be made. The flow rate of 7 is a better speed. Thereby, the ink 7 can be stably supplied to the core cotton arranging portion 8.

As shown in FIG. 4(b), the ink 7 is continuously supplied to the core cotton arranging portion 8, and the ink 7 is impregnated into the core cotton 4. Further, since the first hole 13 is in contact with the core cotton 4, the ink 7 reaching the vicinity of the first hole 13 is attracted by the capillary force of the core cotton 4. Therefore, the flow of the ink 7 does not stagnate due to the surface tension of the ink 7 in the vicinity of the first hole 13.

When the ink 7 is continuously impregnated into the core cotton 4, the water level of the ink 7 of the core cotton arranging portion 8 is continuously increased (the boundary of the water level is constantly approaching the ink tank 3). The water level of the ink 7 of the rising core cotton arranging portion 8 reaches the height (position) of the first hole 13 soon, and as shown in FIG. 4(c), rises to a position higher than the first hole 13 (close to the ink tank) 3 position).

After the water level of the ink 7 of the core cotton arranging portion 8 is continuously increased, as shown in FIG. 4(d), the position of the second hole 14 is filled with the ink 7. Thereby, the second hole 14 is in a liquid-tight state due to the ink 7 impregnated therein, and is substantially closed. Then, the outside air cannot be introduced into the ink cartridge 3, and the supply of the ink 7 to the core cotton arranging portion 8 is stopped. At this time, the core cotton 4 is in a state in which the front side (the lower side in FIGS. 4 and 5) is sufficiently impregnated in the ink 7, and the rear side (the upper side in FIGS. 4 and 5) is in a state of not being immersed in the ink 7. Further, usually, the rear side of the core cotton 4 is not immersed in the ink 7, except for the case where the temperature rises around.

Then, if the writing is continued in the state where the front side of the core cotton 4 is impregnated with the ink 7 as shown in Fig. 5(a), the ink 7 impregnated in the core cotton 4 will soon decrease, so as shown in Fig. 5 ( b), the liquid closed state of the second hole 14 is released. As a result, since the outside air is quickly charged into the ink cartridge 3 again, the supply of the ink 7 to the core cotton arranging portion 8 is started. Then, as shown in FIG. 5(c), the ink 7 is continuously supplied to the core cotton arranging portion 8, and the second hole 14 is again in a liquid-tight state due to the impregnated ink 7. In this manner, when the ink 7 is reduced by writing, the ink 7 is supplied to the core cotton arranging portion 8 and the core cotton 4, so that the ink 7 can be stably supplied to the pen tip 6.

In the first embodiment described above, the portion separated by the main body barrel 2 and the relay core 5 is formed as the ink cartridge 3. However, the ink cartridge 3 may not be formed in this manner.

For example, as in the second embodiment shown in FIG. 6, the relay core 40 formed by clogging a portion of the opening 15 on the rear end side of the relay core 5 may be formed, and the base portion 44 of the relay core 40 may be formed. It is used as the ink tank 3. In addition, this case is also the same as the above case, and the ink 7 can be impregnated into the core as shown in FIGS. 6(a) to (d). Cotton 4 in.

Further, as in the third embodiment shown in Fig. 7, the rear end portion 46 of the main body cylinder 45 and the protruding portion 11 may be integrally formed, and the base portion 46 of the main body cylinder 45 and the intermediate core portion 41 may be formed. The table portion 44 serves as a relay core 41 of one member, and the base portion 44 (the rear end portion 46 of the body barrel 45) of the relay core 41 is used as the ink cartridge 3.

When the ink of the applicator is replenished as in the second embodiment or the third embodiment, the relay core 40 (or the relay core 41) is replaced with a new relay core 40 (pre-filled with the ink 7) ( Or the relay core 41) can replenish the ink 7, so that the replenishing operation of the ink 7 is easy.

In the above embodiment, the example in which the applicator 1 is a marker is shown, but the present invention is not limited thereto. The present invention may also be a coating tool such as a pen or a ballpoint pen, and a correction fluid. Therefore, the material and shape of the main body barrel 2 can be appropriately changed.

Further, the nib 6 can also appropriately change the resin processed body of the fiber bundle, the thermal adhesive additional work body of the fiber bundle, the felt processed body, the catheter-shaped pen body, the pen-shaped plate-shaped pen body having the slit at the tip end, the writing brush body, and the synthesis. Materials and shapes such as a porous cell body of a resin, a ballpoint pen tip, and an extrusion molded body of a synthetic resin having an ink-inducing path in the axial direction. Further, the core cotton 4 may be a member having a continuous pore that can impregnate the ink 7 as described above, and its shape is not limited to a substantially rectangular parallelepiped shape. The raw materials and shapes can be changed as appropriate. In addition, the density of the core cotton 4 may be uniform or not uniform. When the high-density portion and the low-density portion are provided in the core cotton 4, the ink 7 is less likely to move from the high-density portion to the low-density portion, so that the amount of the ink 7 supplied to the pen tip 6 can be easily adjusted.

In the above embodiment, the form in which the relay core 5 is in contact with the core cotton 4 will be described, but the relay core 5 and the core cotton 4 may not be in contact with each other. However, if the relay core 5 (the first hole or the second hole) does not contact the core cotton 4, when the inner diameter of the relay core 5 is small, the surface tension acting on the ink 7 exceeds the gravity, and Since the ink 7 is retained in the hollow portion 21, when the ink 7 is supplied to the core cotton arranging portion 8, the amount of outflow of the ink 7 per unit time is reduced. On the other hand, when the relay core 5 comes into contact with the core cotton 4, the ink 7 is sucked by the capillary force of the core cotton 4, and the ink 7 flows smoothly, so that even if the inner diameter of the relay core 5 is small, The outflow of ink 7 per unit time will still be stable. Therefore, it is preferable that the relay core 5 is in contact with the core cotton 4.

Further, in the above-described embodiment, the configuration in which all the holes (the first hole 13 and the second hole 14) provided in the protruding portion 11 are covered (contacted) by the core cotton 4 will be described, but the first hole 13 is not necessarily required. The core cotton 4 is in contact with both the second holes 14. For example, the protruding portion 11 can be brought into contact with only the first hole 13 by contacting the rectangular liquid core cotton from the side of the coating liquid accommodating portion 3. Further, by the step of forming the concave portion in the core cotton 4, the second hole 14 can be brought into contact with the core cotton 4 without the first hole 13 contacting the core cotton 4. These can be appropriately changed in accordance with the viscosity of the ink 7, the position of the first hole 13, and the second hole 14, and the like. However, if the ink is changed in such a manner as to cause the ink to overflow from the core cotton arranging portion 8, it is preferable that both the first hole 13 and the second hole 14 are in contact with the core cotton 4.

In the above embodiment, the diameter of the first hole 13 is the same as the diameter of the hollow portion 21 (the length in the short-side direction), but these may be different. The diameter of the first hole 13 may be different from the diameter of the hollow portion 21. The diameter of the hollow portion 21 may be larger or smaller than the diameter of the first hole 13.

In the above embodiment, the first hole 13 is provided on the circular surface of the protruding end of the protruding portion 11, and the second hole 14 is provided in the vicinity of the front end of the side surface of the protruding portion 11, but is provided in the protruding portion 11 The position of the hole is not limited to the front end portion.

For example, in the fourth embodiment shown in Fig. 8, the first hole 33 and the second hole 34 may be provided together on the side surface. At this time, the positions of the projections 11 of the holes (the first hole 33 and the second hole 34) in the axial direction may be the same or may be separated. In other words, when the distance from the surface 25 to the first hole 33, which is the base end of the protruding portion 11, is the distance Y1, and the distance from the surface 25 to the second hole 34 is Y2, Y1 and Y2 may be equal, and either Longer. However, when Y1 and Y2 are the same, it is difficult to introduce the outside air into the coating liquid storage unit 3, and it is necessary to increase the diameter of the first hole 33 or the second hole 34. This causes problems such as weakening of strength, and therefore it is desirable that the first hole 33 and the second hole 34 are separated in the axial direction of the protruding portion 11.

In the above embodiment, the shape of the protruding portion 11 is described as a cylindrical shape, but the shape of the protruding portion is not limited thereto. Further, the number of holes provided in the protruding portion is not limited to two. These can also be set to two or more.

For example, in the fifth embodiment shown in Fig. 9, the protruding portion 51 having a shape in which the front end portion of the cylinder is cut obliquely may be used. Furthermore, two holes 53 may be provided on the circular surface of the front end. Since the circular surface formed at the front end portion of the cylinder at this time is inclined with respect to the protruding direction of the protruding portion 51, the position of each of the protruding directions (distance from the base end (face 25)) is different. Therefore, the two holes 53 can make the hole 53 (53a) at a position farther from the base end function as the above-described first hole 13, and the hole 53 (53b) at a position closer to the base end is as described above. The second hole 14 functions as it is.

Further, a plurality of second holes 14 may be provided in the side surface portion of the protruding portion 11 as in the sixth embodiment shown in FIG.

Further, in the seventh embodiment shown in Fig. 11, the protruding portion 52 having the shape of the end portion of the cone may be cut. Further, the protruding portion 52 is provided with a first hole 13 on the circular surface of the tip end portion, and a plurality of second holes 14 are provided on the surface which is tapered toward the tip end.

In the above embodiment, the opening shape of the first hole 13 and the second hole 14 is circular, but the opening shape of the hole may not be circular. The shape of the opening of the hole will be described below with reference to Figs. 12(a) to 12(m). The shape of the opening of the hole provided in the protruding portion 11 is not limited to the circular shape (a), and may be an elliptical shape (b). Furthermore, it may be a combination of two quadrangularly overlapping crosses (c), two substantially circular holes connected with a gourd shape (d), and a substantially "V" shaped so-called dart shape (e). The shape of an ellipse or a polygon. Further, it may be a polygonal shape such as a parallelogram shape (f), a diamond shape (g), a ladder shape (i), a pentagon shape (j), and a triangular shape (k). Further, it may be a star shape (h), an "L" shape (1), and a polygonal shape (m) using a wavy curve for a part. The shape of the opening of the hole provided in the protruding portion as described above can be appropriately changed. However, since the hole having a circular opening shape is easy to process, it is preferable to manufacture.

Further, as described in the above embodiment, the opening shapes of the first hole 13 and the second hole 14 may be different. The first hole 13 and the second hole 14 may each have a different opening shape. The same applies to the case where two or more holes are provided in the protruding portion, and each of the holes may have a different opening shape or the same opening shape. The combination of the opening shapes of the holes provided in the protruding portions is arbitrary.

Next, an eighth embodiment of the present invention will be described. Also, aiming at The same portions as those in the first embodiment are denoted by the same reference numerals and will not be described.

As shown in FIG. 13, the applicator 60 of the eighth embodiment includes a main body cylinder 61, a relay core 62 (flow path forming portion), and an ink tank portion 63 (coating liquid storage portion). Further, an ink tank portion 63 capable of storing the ink 7 is disposed on the rear side of the hollow portion on the inner side of the main body barrel 61, and a core cotton arranging portion 68 is formed on the front side of the hollow portion. At this time, the ink tank portion 63 is located at the rear side portion of the relay core 5, and the core cotton arranging portion 8 is located at the front side portion of the relay core 5. That is, the hollow portion of the body barrel 61 is separated by the relay core 62 before and after.

The body barrel 61 is formed by a front end portion 69 and a rear end portion 70. The front end portion 69 is formed in a shape that is tapered as it goes to the front side. Specifically, from the rear side toward the front side, the cylindrical portion 69a having a large diameter, the cylindrical portion 69b having a small diameter, the tapered portion 69c, and the four portions of the cylindrical portion 69d having the smallest diameter are continuous. At this time, the cylindrical portion 69a having a larger diameter and the cylindrical portion 69b having a smaller diameter are continuous via the step. Further, inside the front end portion 69, there is an inner space 71 that communicates in the longitudinal direction, and the inner space 71 also becomes thinner as it goes to the front side. Further, a body side spiral groove 69e is formed at a square end portion behind the inner peripheral surface of the front end portion 69.

The rear end portion 70 is a substantially bottomed cylindrical lid body provided with an open port.

The relay core 62 is formed of a suitable material such as a synthetic resin such as polypropylene or polyacetal or a metal. Further, as shown in FIG. 14, the relay core 62 is formed by the protruding portion 73 and the base portion 74.

The protruding portion 73 is formed by a cylindrical protruding body 75 and a rectangular flat plate shape. The pressing piece 76 (pressing portion) is formed. At this time, the protruding portion body 75 protrudes substantially perpendicularly from the front end surface 77 (the upper end surface in FIG. 14) of the base portion 74 toward the front (upper side in FIG. 14), and the central portion of the protruding portion body 75 and the base portion 12 So that it is configured in the same way. That is, the protruding portion 73 protrudes from the vicinity of the central portion of the front end surface 77 of the base portion 74. Further, the pressing pieces 76 are respectively provided at two positions offset by substantially 180 degrees in the circumferential direction of the side surface of the protruding portion main body 73, and protrude outward from the side surface of the protruding portion main body 75. Here, either of the two pressing pieces 76 protrudes in a direction substantially perpendicular to the longitudinal direction (projecting direction) of the protruding body body 75. Therefore, the two pressing pieces 76 protrude in directions separating from each other. Further, the pressing piece 76 extends in the longitudinal direction of the protruding body 75. Specifically, the end portion of the pressing piece 76 is in contact with the front end surface 77 of the base portion 74, and the front end portion of the pressing piece 76 is located at the front end of the protruding portion body 75 (the front end in the protruding direction, that is, the upper end of FIG. 14) on the later side ( Figure 14 below the side). That is, either of the two pressing pieces 76 protrudes substantially perpendicularly from the front end surface 77 (the upper end surface of FIG. 14) of the base portion 74 toward the front (upper side in FIG. 14), and the length in the longitudinal direction is also slightly shorter than the protruding portion. Body 75.

Further, the width L1 of the pressing piece 76, that is, the length L1 of the protruding direction of the pressing piece 76 is not particularly limited, but is desirably 2.0 mm to 4.5 mm, and more desirably 3.0 mm to 4.0 mm.

Further, the thickness L2 of the pressing piece 76, that is, the length L2 in the longitudinal direction (extending direction) of the pressing piece 76 and the direction substantially perpendicular to the protruding direction is not limited, but is desirably 1.0 mm to 3.0 mm, and more desirably 1.5. Mm~2.0 mm, and further desirably around 2.00 mm.

Furthermore, the maximum width (maximum diameter) L3 of the protruding portion 73 is Among the two pressing pieces 76 and 76 that protrude in the direction in which the protruding portion main body 75 is opposed to each other, the protruding direction of the pressing piece 76 from the end portion of the pressing piece 76 in the protruding direction is desired. The length of the end portion is 8.5 mm or more and 14.0 mm or less, and more desirably 10.5 mm or more and 13.5 mm or less, and further desirably 13.0 mm or less.

The protruding portion 73 of the present embodiment has a shape in which the pressing piece 76 is provided in the protruding portion 11 of the first embodiment. In other words, the protruding portion main body 75 of the present embodiment has substantially the same shape as the protruding portion 11 of the first embodiment, and the protruding portion main body 75 of the present embodiment is also provided with the first hole similarly to the protruding portion 11 of the first embodiment. 13 and the second hole 14. The description of the first hole 13 and the second hole 14 will not be repeated.

Here, focusing on the second hole of the present embodiment, as shown in FIG. 14, the second hole 14 is provided at a position where one of the pressing pieces 76 and the protruding portion main body 75 are substantially at the same position in the circumferential direction. Further, the second hole 14 is provided slightly forward (upper in FIG. 14) than the front end surface 76a (the upper end surface in FIG. 14) of the pressing piece 76. That is, the front end surface 76a (the upper end surface in FIG. 14) of the pressing piece 76 is located in the vicinity of the rear side of the second hole 14 (near the lower side of FIG. 14). That is, substantially, as shown in FIG. 13, the front end surface 76a (lower end surface) of the pressing piece 76 is located above the second hole 14, and the second hole 14 is close to the front end surface 76a (lower end surface) of the pressing piece 76. .

Further, the distance L6 from the front end surface 76a of the pressing piece 76 to the center of the second hole 14 is not particularly limited, but is desirably 0.5 mm to 3.0 mm, and more desirably 1.0 mm.

Further, in the present embodiment, as shown in Fig. 15, the thickness of the pressing piece 76 is as shown in Fig. 15. The length L2 (a direction substantially perpendicular to the direction of the vertical direction and the protruding direction) is longer than the diameter (opening diameter) L4 of the second hole 14. In this manner, the thickness L2 of the pressing piece 76 is desirably equal to or larger than the diameter L4 of the second hole 14.

As shown in FIGS. 14 and 15, the base portion 74 is formed by the outer tubular portion 80 and the inner tubular portion 81 located inside the outer tubular portion 80. As shown in FIGS. 14 to 16, the outer tubular portion 80 is formed in a substantially bottomed cylindrical shape in which one opening port 86 is provided. Further, the inner tubular portion 81 is formed in a substantially cylindrical shape. Further, the inner tubular portion 81 has a smaller diameter than the outer tubular portion 80 and is located at a central portion of the outer tubular portion 80, so that the inner cylindrical portion 81 and the outer cylindrical portion 80 have the same central axis. Further, the inner tubular portion 81 and the outer tubular portion 80 are each a tubular body that extends in the front-rear direction (the upper and lower directions in FIGS. 15 and 16).

As shown in Fig. 16, the front end portion of the inner tubular portion 81 is continuous with the inner bottom surface 87 of the outer tubular portion 80, and the rear end portion protrudes from the rear end of the outer tubular portion 80 (the lower end of Figs. 15 and 16) to the rear (Fig. Below 15 and 16). Further, the length of the inner tubular portion 81 in the front-rear direction (the upper and lower directions in FIG. 16) is longer than that of the outer tubular portion 80.

Further, a tapered portion 81a whose outer peripheral surface of the inner cylindrical portion 81 is narrowed toward the rear is formed at the rear end portion of the inner tubular portion 81.

Next, the internal structure of the relay core 62 will be described.

As shown in FIG. 16, inside the relay core 62, a hollow portion 21 is provided inside the protruding portion 73, and hollow portions 84, 85 are provided inside the base portion 74.

Inside the protruding portion 73, a hollow portion 21 is provided inside the protruding portion body 75. Since the hollow portion 21 is substantially the same as the hollow portion 21 provided inside the protruding portion 11 of the first embodiment, detailed description thereof will be omitted.

A hollow portion disposed inside the inner cylindrical portion 81 is formed inside the base portion 74 The portion 84 and the annular hollow portion 85 provided between the outer circumferential surface of the inner cylindrical portion 81 and the inner circumferential surface of the outer tubular portion 80.

The hollow portion 84 provided inside the inner cylindrical portion 81 has a circular cross section and extends in a space extending in the longitudinal direction of the inner cylindrical portion 81.

Here, the hollow portion 21 of the protruding portion body 75 and the hollow portion 84 of the inner cylindrical portion 81 are continuous via the connecting hole 23. The connecting hole 23 penetrates the through hole of the bottom plate portion located at a position facing the opening 86 of the base portion 74 from the inside to the outside, and has a circular cross section and extends in the through direction.

At this time, either the connecting hole 23 and the hollow portion 21 of the protruding portion body 75 are holes extending in a circular cross section, and the diameter of the cross section, the extending direction of the hole, and the central axis are the same. Further, the connection hole 23 is overlapped with the hollow portion 21 of the protruding portion body 75 to form one through hole. Therefore, the inner circumferential surface of the hollow portion 21 of the protruding portion body 75 and the inner circumferential surface of the coupling hole 23 are flush with each other.

Further, any of the connecting hole 23 and the hollow portion 84 of the inner cylindrical portion 81 is a hole extending in a circular cross section, and the diameter of the cross section, the extending direction of the hole, and the central axis are the same. Further, the connection hole 23 overlaps with the hollow portion 84 of the inner cylindrical portion 81 to form the same through hole. Therefore, the inner circumferential surface of the hollow portion 84 of the inner tubular portion 81 and the inner circumferential surface of the coupling hole 23 are flush with each other.

In other words, the inner space 89 (hollow hole) formed by integrally forming the hollow portion 21 of the protruding portion main body 75, the connecting hole 23, and the hollow portion 84 of the inner cylindrical portion 81 is formed inside the relay core 62.

The internal space 89 is a through hole that penetrates from the opening 81b formed on the end side of the hollow portion 84 of the inner cylindrical portion 81 to the opening of the first hole 13 formed in the protruding portion body 75. Moreover, the cross-sectional shape of the internal space 89 is circular, and the section is The diameters are substantially the same and extend forward and backward along the length direction of the relay core 62. At this time, the opening 81b on the rear end side of the hollow portion 84 formed in the inner cylindrical portion 81 is opposed to the opening of the first hole 13 formed in the protruding portion body 75, and has substantially the same shape.

As shown in FIGS. 17 and 18, the ink tank unit 63 is formed by a case main body portion 91 having a substantially cylindrical outer appearance and a main body tube engaging portion 92.

As shown in FIG. 18, the cartridge main body portion 91 has an inner space 94 formed by hollowing the inner portion. At this time, the rear portion 95 of the cartridge main body portion 91 is reduced in inner diameter and outer diameter as it goes rearward from the center portion. Further, in the front portion 96 of the cartridge body portion 91, the inner portion to the front end extend from substantially the same inner diameter and substantially the same outer diameter.

At this time, as shown in Fig. 17, a circular plate-shaped bottom plate portion 97 is provided at the front end (the lower end of Figs. 17 and 18) of the cartridge main body portion 91. At this time, the bottom plate portion 97 is provided to block the front of the cartridge main portion 91, and as shown in Fig. 18, the inner surface 97a which is the top surface of the bottom plate portion 97 and the outer surface 97b which is the bottom surface of the bottom plate portion 97 are The surface is substantially orthogonal to the longitudinal direction of the cartridge body portion 91.

Further, as shown in Figs. 17 and 18, an ink supply hole 98 that communicates with the outside and the internal space 94 of the cartridge body portion 91 is formed at a central portion of the bottom plate portion 97. The ink supply hole 98 penetrates the through hole of the outer surface 97b of the bottom plate portion 97 to the inner side surface 97a, and has a circular cross section and extends in the through direction. Further, the shape of the opening provided on the outer side surface 97b and the inner side surface 97a is also circular. Here, the diameter of the opening 98a formed on the outer surface 97b of the bottom plate portion 97 is not particularly limited, but is desirably 2.0 mm to 7.0 mm, and more desirably 2.5. Mm~3.0 mm.

Further, in the outer surface 97b of the bottom plate portion 97, the relay core engaging portion 99 is provided so as to surround the opening of the ink supply hole 98 formed on the outer surface 97b of the bottom plate portion 97. The relay core engaging portion 99 is an annular upright that protrudes from the outer side surface 97b of the bottom plate portion 97 to a substantially vertical lower direction. The relay core engaging portion 99 is provided at a position slightly separated from the side of the opening of the ink supply hole 98.

As shown in Fig. 18, the body barrel engaging portion 92 is a cylindrical portion 92a positioned to surround the vicinity of the center portion in the longitudinal direction of the cartridge body portion 91, and a front end portion connecting the inner peripheral surface of the cylindrical portion 92a. (the lower end portion of Fig. 18) is formed by the joint portion 92b of the outer peripheral surface of the cartridge body portion 91.

Here, the inner peripheral surface of the cylindrical portion 92a is located slightly apart from the outer peripheral surface of the cartridge body portion 91. Further, the connecting portion 92b is located between the end portion of the inner peripheral surface of the cylindrical portion 92a and the outer peripheral surface of the cartridge body portion 91. At this time, the connecting portion 92b is integrated with each of the front end portion of the inner peripheral surface of the tubular portion 92 and the outer peripheral surface of the cartridge main portion 91, and is continuous with the slits. Therefore, between the inner circumferential surface of the tubular portion 92a and the outer circumferential surface of the cartridge body portion 91, an annular groove 100 whose front end is closed and whose rear end is open is formed.

Further, an ink tank side spiral groove 92c is formed on the outer peripheral surface of the tubular portion 92a.

Next, the mounting structure of the applicator 60 of the present embodiment will be described with reference to FIG.

A pen tip 6 is attached to the front end portion of the front end portion 69 of the body barrel 61. Further, in the internal space 71 of the front end portion 69, the core cotton 4 is disposed on the rear side of the pen tip 6. At this time, the core cotton 4 is placed in the main body cylinder 61 in a state of being inserted into a cylindrical body (not shown) formed of a suitable material such as PP (polypropylene). Further, at this time, the front end of the core cotton 4 is in contact with the rear end of the pen tip 6.

Further, in the internal space 71 of the front end portion 69, the relay core 62 is inserted. At this time, the relay core 62 is inserted so that the protruding portion 73 is forward and the base portion 74 is rearward. Further, substantially all of the protruding portion body 75 of the protruding portion 73 and the two pressing pieces 76 are inserted into the core cotton 4. That is, the portion from the front end to the rear end in the front-rear direction from the protruding portion main body 75 and the two pressing pieces 76 is inserted into the core cotton 4. Further, in detail, the relay core 62 is inserted from the rear side of the core cotton 4, and the protruding portion main body 75 of the protruding portion 73 and the two pressing pieces 76 are pressed from the rear direction (from the top to the bottom in FIG. 13). Cotton 4.

At this time, the core cotton 4 is in a state of being filled into the cylindrical body as described above. Therefore, the outer shape is formed into a substantially columnar shape and extends in the front-rear direction of the applicator 60 (the upper and lower directions of FIG. 13 and the longitudinal direction of the applicator 60). Moreover, the relay core 62 also extends in the front-rear direction of the applicator 60. That is, the relay core 62 is inserted from the top surface (upper surface) of the core cotton 4 in a direction substantially perpendicular to the top surface, and extends in the same direction as the core cotton 4. In other words, the insertion direction of the relay core 62 is substantially the same as the front and rear directions of the applicator 1. Thereby, in the majority of the vicinity of the front end of the core cotton 4, the relay core 62 is located inside.

Here, the length L10 of the portion of the core cotton 4 inserted into the relay core 62 is desirably 15.0 mm or more and 25.0 mm or less, more desirably 18.5 mm or more and 21.0 mm or less, and most desirably 20.5 mm or less.

That is, in the internal space 71 of the front end portion 69, the base of the relay core 62 is A portion slightly ahead of the front end surface 77 of the table portion 74 to a portion near the front end of the internal space 71 serves as a core cotton arranging portion 68.

At this time, the opening of the first hole 13 of the protruding portion 73 and the opening of the second hole 14 of the protruding portion 73 are covered by the core cotton 4 across substantially the entire surface. Further, as shown in Fig. 19, a portion of the rear end (the upper end in Fig. 19) of the core cotton 4 is inserted from the first hole 13 into the inner space 89 (hollow portion 21) of the projection 73. That is, a portion of the core cotton 4 is disposed in the vicinity of the front end of the inner space 89 of the protruding portion 73 (near the lower end in FIG. 19). In other words, a portion of the core cotton 4 is disposed in a portion located further rearward than the opening surface of the first hole 13 (upper side in FIG. 19), and the opening of the first hole 13 is blocked by the core cotton 4.

Here, since the outer diameter of the base portion 74 of the relay core 62 (the outer diameter of the outer cylinder portion 80) is substantially the same as the inner diameter of the front end portion 69 of the main body cylinder 61, the relay core 62 is embedded in the body cylinder. 61 is fixed in the front end portion 69.

Further, in the front end portion 69 of the main body cylinder 61, an ink tank portion 63 in which the ink 7 is filled in the internal space 94 is attached from the rear side of the relay core 62. At this time, the ink tank side spiral groove 92c formed on the outer circumference of the ink tank portion 63 is screwed to the main body side spiral groove 69e formed on the inner circumferential surface of the front end portion 69 of the main body barrel 61, and the ink tank portion 63 is fixed to the ink tank portion 63. Body barrel 61.

Moreover, at this time, as shown in FIG. 20, the rear end portion of the inner tubular portion 81 is inserted into the inner side of the annular core fastening portion 99 which is an annular standing wall. At this time, since the outer diameter of the inner tubular portion 81 is substantially the same as the inner diameter of the intermediate core engaging portion 99, the rear end portion of the inner tubular portion 81 is fitted into the intermediate core engaging portion 99 and fixed. Further, as shown in FIG. 13, the opening 98a on the outer side of the ink supply hole 98 is in contact with the opening 81b formed in the inner cylindrical portion 81. Thereby, the ink supply hole 98 is connected to the internal space 89. Connected, and these are like a through hole.

Further, the rear end portion 70 of the main body cylinder 61 is attached from the rear of the ink tank portion 63. Specifically, it is in a state in which the end portion of the end portion 70 of the main body cylinder 61 is inserted into the annular groove 100 formed in the ink tank portion 63.

The above description of the assembly structure of the applicator 60 of the present embodiment is completed.

Hereinafter, the action of the applicator 60 of the present embodiment will be described with reference to Figs. 21 and 22 .

When the pen tip 6 is directed to the lower side for writing, the ink 7 moves from the internal space 94 of the ink cartridge portion 63 to the core cotton arranging portion 68 side by gravity as shown in Fig. 21 (a). At this time, the ink 7 is moved to the lower portion of the inner space 89 of the relay core 62 through the ink supply hole 98. Further, the ink 7 that has moved to the vicinity of the lower end of the protruding portion 73 is guided to the lower side by its own gravity and the capillary force of the core cotton 4. Thereby, the ink 7 is discharged from the first hole 13 and supplied to the core cotton arranging portion 68. That is, the internal space 89 of the relay core 62 serves as an ink flow path when the ink 7 is supplied.

Here, in the present embodiment, the core cotton 4 is pressed from above by the pressing piece 76. Thereby, the density portion 103 in which the void ratio relatively decreases is formed in the lower portion of the core cotton 4. In other words, by pressing the core cotton 4 from above with the pressing piece 76 or the like, one portion of the pressed core cotton 4 is pressed downward to accumulate. As a result, in the core cotton 4, the low-density portion 104 having a relatively high void ratio and a low fiber density is formed in the upper portion, and the density portion 103 having a relatively low void ratio and a high fiber density is formed in the lower portion. Further, the nib 6 is a high-density portion having a higher fiber density than the density portion 103 of the core cotton 4.

That is, in the present embodiment, a portion having a continuous fiber density is formed in the upper portion and the lower portion of the core cotton 4, and the fiber density is increased downward. Further, the low density portion 104, the medium density portion 103, and the high density portion (pen tip 6) are continuous from the rear end of the core cotton 4 toward the front end of the pen tip 6. Further, in the present embodiment, as shown in Fig. 21 (a), the middle portion is formed from the front end of the core cotton 4 to the upper end of the second hole 14, and the portion near the upper end of the second hole 14 to the rear is formed. The low density portion 104 is formed.

Thereby, the ink 7 can be stably supplied to the pen tip 6. For example, even if the ink 7 is incapable of reaching the ink of the opening of the first hole 13 by its own gravity, the ink 7 can be introduced from the relay core 62 to the core cotton 4, and moved from the core cotton 4 to the pen tip 6.

In the present embodiment, the ink 7 can be strongly introduced into the core cotton 4 from the intermediate core 62, and even if there is only one protruding portion 73, the ink 7 can be stably supplied. In other words, in the present embodiment, even if two or more protruding portions are not provided, or that the protruding portions having a large diameter are not provided, the ink 7 can be sufficiently supplied by only one protruding portion 73. Therefore, in the present embodiment, it is not necessary to provide two or more protruding portions or to form a protruding portion having a large diameter, and there is an advantage that the degree of freedom in designing the relay core 62 is high.

Further, by making the size of the pressing piece 76 to the above-described desired size, the volume of the core cotton 4 can be reduced by a certain amount. In other words, the core cotton 4 is in a state of being contracted by a certain amount. At this time, in the constricted portion of the core cotton 4, the void ratio is lowered, and the pores (slits) formed between the fibers and the fibers become small, and the pores are formed by allowing an appropriate amount of the ink 7 to ooze out. In other words, in the contracted portion of the core cotton 4, the ink 7 to be impregnated is not discharged to the other portions in a large amount (in a short time). Therefore, it is possible to prevent overflow and leakage from the contraction portion of the core cotton 4 A lot of ink 7.

When the ink 7 is discharged from the first hole 13, the external air (minor air) is introduced into the internal space 94 of the ink tank unit 63 from the second hole 14 which is not used for the supply of the ink 7. In other words, in the internal space 94 of the ink tank unit 63, the ink 7 is introduced from the second hole 14 to the ink tank unit 63, and the ink 7 is quickly supplied from the first hole 13 to the core cotton. Part 68. Further, the second hole 14 is located closer to the ink tank portion 63 than the first hole 13, and is located above the first hole 13 when the pen tip 6 is directed downward. Therefore, the ink 7 is supplied from the first hole 13 having a higher water pressure to the core cotton arranging portion 68, and the ink 7 is not supplied from the second hole 14.

Here, the size of the diameter or the area of the first hole 13 and the second hole 14 is set to the above-described desired size, and the distance between the second hole 14 and the tip end portion is the desired position, whereby the ink can be made. The flow rate of 7 is a better speed. Thereby, the ink 7 can be stably supplied to the core cotton arranging portion 68.

As shown in FIG. 21(b), the ink 7 is continuously supplied to the core cotton arranging portion 68, and the ink 7 is continuously impregnated into the core cotton 4. Further, since the first hole 13 is in contact with the core cotton 4, the ink 7 having reached the vicinity of the first hole 13 is attracted by the capillary force of the core cotton 4. Therefore, the flow of the ink 7 is not stagnated by the surface tension of the ink 7 or the like in the vicinity of the first hole 13.

When the ink 7 is continuously impregnated into the core cotton 4, the water level of the ink 7 of the core cotton arranging portion 68 is continuously increased (the boundary of the water level is continuously approaching the ink tank portion 63 side). The water level of the ink 7 of the rising core cotton arranging portion 68 reaches the height (position) of the first hole 13 soon, and as shown in FIG. 21(c), it rises to a position higher than the first hole 13 (close to The position of the ink tank portion 63).

After the water level of the ink 7 of the core cotton arranging portion 68 is continuously rising, soon That is, as shown in FIG. 21(d), the ink 7 is filled to the position of the second hole 14. Thereby, the second hole 14 is substantially closed by the liquid-sealed state of the impregnated ink 7. Then, the outside air cannot be introduced into the internal space 94 of the ink tank unit 63, and the supply of the ink 7 to the core cotton arranging unit 68 is stopped. At this time, the core cotton 4 is sufficiently immersed in the state of the ink 7 on the front side (the lower side in FIGS. 21 and 22), and the rear side (the upper side in FIGS. 21 and 22) is not immersed in the ink 7. In addition, usually, the rear side of the core cotton 4 is not immersed in the ink 7, except for the case where the temperature rises around.

That is, the air in the internal space 94 of the ink tank portion 63 is expanded by the temperature rise of the surroundings, and the ink 7 is squeezed from the ink tank portion 63 by the expanded air, so that the ink 7 is excessively supplied to the core cotton 4 It is possible to cause the rear side portion of the core cotton 4 to be impregnated in the ink 7.

However, in the present embodiment, as described above, the size of the pressing piece 76 is reduced to a predetermined amount by reducing the volume of the core piece 4 by a predetermined amount, so that the contracted portion is ink. The portion where the holding force is high, whereby the impregnated ink 7 does not flow out to other portions at a time (in a short time). That is, by the portion where the holding force of the ink 7 is high in the core cotton 4, it is assumed that even if the ink 7 is excessively supplied to the core cotton 4, the ink does not flow largely in the rear side portion of the core cotton 4. Thereby, it is assumed that even if the ink 7 is excessively supplied to the core cotton 4, a large amount of ink flows into the rear side portion of the core cotton 4 at a time, and the upper portion (near the rear end portion) of the ink core cotton 4 does not overflow. situation.

Then, if the writing is continued while the ink 7 is impregnated on the front side of the core cotton 4 as shown in FIGS. 21(d) and 22(a), the ink is impregnated in the core cotton 4. The water 7 is reduced shortly, and as shown in Fig. 22 (b), the liquid closed state of the second hole 14 is released. As a result, the outside air is quickly charged into the ink cartridge 3 again, so that the supply of the ink 7 to the core cotton arranging portion 68 is started. Next, as shown in FIG. 22(c), the ink 7 is continuously supplied to the core cotton arranging portion 68 until the second hole 14 is again in a liquid-tight state by the impregnated ink 7. In this manner, each time the ink 7 is reduced by writing, the ink 7 is supplied to the core cotton arranging portion 68 and the core cotton 4. Further, the ink 7 supplied to the core cotton 4 does not easily flow from the medium density portion 103 to the low density portion 104. That is, since the ink 7 supplied to the core cotton 4 easily flows to the pen tip 6 side, the ink 7 can be stably supplied to the pen tip 6.

In the eighth embodiment described above, the core cotton 4 is disposed so as to cover the entire opening of the first hole 13 and the second hole 14, but the invention is not limited thereto. The opening of the first hole 13 or the second hole 14 may not be covered by the core cotton 4, but may be formed by covering only a part of the opening of the first hole 13 or the second hole 14 with the core cotton 4. In other words, the protruding portion 73 and the core cotton 4 can be disposed such that the ink 7 in the vicinity of the front end of the protruding portion 73 in the internal space 89 is attracted to the core cotton 4 by the capillary force of the core cotton 4.

Further, as a modification of the eighth embodiment, the first hole 13 (a communication hole provided in the vicinity of the front end of the protruding portion) may be provided, and the second hole 14 may not be provided (the one hole is provided in the first hole). The form of the communication hole toward the proximal end side of the protruding portion. Although the principle of the present invention is to provide two or more communication holes that communicate with the hollow portion 21 inside the protruding portion 73, by providing the pressing piece 76 of a desired size, the second hole 14 can be implemented without the second hole 14. . In this case, the first hole 13 also serves as an ink lead-out hole and an air discharge hole.

In the eighth embodiment, the pressing piece 76 is formed in a flat shape. Further, the side surface of the protruding portion body 75 and the front end surface 77 of the base portion 74 are in contact with each other, but the relay core of the present invention is not limited thereto. For example, in the ninth embodiment shown in FIG. 23, the relay core 109 including the pressing piece 108 that protrudes from the base portion 74 to the front side without contacting the protruding portion main body 75 may be employed.

Further, in the tenth embodiment shown in FIG. 24, the relay core 111 including the pressing piece 110 extending from the protruding portion main body 75 without the pressing piece 110 contacting the base portion 74 may be employed.

Further, the shape of the pressing piece of the present invention is not particularly limited, and may be a round bar-shaped pressing piece (see Fig. 23) as shown in the ninth embodiment, and may be a hook shape as shown in the tenth embodiment (L word) A pressing piece of a plate shape (refer to Fig. 24). Therefore, the pressing piece may be a pressing piece having a cross-sectional shape extending in a polygonal shape such as a square shape, or a pressing piece extending in a circular cross-sectional shape. Further, it may be a pressing piece that is partially bent and extended.

In other words, in the pressing piece of the present invention, at least a part or all of the core cotton located in the vicinity of the ink discharge port (first hole 13) of the relay core can be made to have a high fiber density by pressing the core cotton. .

Next, an eleventh embodiment will be described. The description of the same portions as those of the above embodiment will be omitted.

In the applicator 260 of the present embodiment, as shown in FIG. 25, a pressing member 261 (an absorbing body contracting member) is provided in the vicinity of the front end of the core cotton arranging portion 208.

The pressing member 261 is formed of a suitable material such as synthetic resin such as polypropylene or polyacetal or metal, and is formed of a pressing member body 262 and a protruding portion 263 as shown in FIG. 26 .

The pressing member body 262 is provided with an annular plate-like portion having a central through hole 264 penetrating from the top surface to the bottom surface at a central portion thereof. The center through hole 264 has a circular opening shape and penetrates the pressing member body 262 in the vertical direction. Here, as shown in FIG. 27, a plurality of through holes 265 which are arranged in the circumferential direction are provided in the pressing member body 262. More specifically, the eight through holes 265 are provided at substantially equal intervals in the circumferential direction, and either of them has a circular opening shape and penetrates the pressing member body 262 in the vertical direction. Further, each of the opening diameters of the through holes 265 is substantially the same size and smaller than the opening diameter of the center through hole 264.

As shown in FIGS. 26 and 28, the protruding portion 263 is provided in a substantially rectangular parallelepiped shape on the upper surface of the pressing member main body 262, and protrudes substantially vertically upward.

The height L7 of the protruding portion 263, that is, the length L7 of the protruding direction of the protruding portion 263 is not particularly limited, but is desirably 2.0 mm to 6.0 mm, more desirably 4.0 mm to 5.5 mm, and desirably 5.0 mm or so.

Further, the thickness L8 of the protruding portion 263, that is, the length L8 of the protruding direction (up-and-down direction) of the protruding portion 263 and the radial direction of the pressing member main body 262 (the direction from the center toward the outer side) is not particularly limited. However, it is expected to be 0.5 mm to 2.0 mm, more desirably 0.5 mm to 1.0 mm, and most desirably near 0.8 mm.

Further, the width L9 of the protruding portion 263, that is, the length from the inner end portion to the outer end portion of the protruding portion 263 (the end portions of the protruding portion 263 of the radial direction of the pressing member body 262, one end to the other end) The length of the L9 system is not particularly limited, but is desirably 1.0 mm to 4.0 mm, and more desirably 2.0 mm to 3.5 mm. The most desirable is around 3.0 mm.

Here, focusing on the upper surface of the pressing member body 262, the protruding portion 263 is located between the plurality of through holes 265 which are juxtaposed in the circumferential direction. In other words, on the upper surface of the pressing member body 262, the through hole 265 and the protruding portion 263 are alternately continuous in the circumferential direction and juxtaposed.

Therefore, a plurality of protrusions 263 are also provided on the top surface of the pressing member body 262. More specifically, as shown in FIG. 27, in the circumferential direction of the pressing member body 262, eight protrusions 263 are provided at substantially equal intervals. In other words, the protruding portion 263 is radially provided on the top surface of the pressing member main body 262, and in the radial direction of the pressing member main body 262, four sets of the opposing positions of the center through-holes 264 are provided. The state of the protrusions 263.

Next, the mounting structure of the applicator 260 of the present embodiment will be described with reference to FIG. 25.

A tip 206 is attached to the front end of the front end portion 228 of the body barrel 202. Moreover, the rear side portion of the nib 206 is located in the inner space 230 of the body barrel 202. At this time, the rear end portion of the nib 206 forms the inner peripheral surface of the inner space 230, and protrudes rearward (upward) from the front end at the front end. Further, a pressing member 261 is disposed in the vicinity of the rear end portion of the pen tip 206. Further, the bottom surface of the pressing member 261 is in a state of coming into contact with the front end surface of the internal space 230.

At this time, the rear end portion of the nib 206 is in a state of being inserted into the center through hole 264 of the pressing member 261. Therefore, the projection 263 of the pressing member 261 is in a state of surrounding the periphery of the rear end portion of the pen tip 206 in a ring shape.

Further, the upper end portion (projecting end portion) of the pen tip 206 is located above (rear) the upper end portion (projecting end portion) of the protruding portion 263 of the pressing member 261.

Further, a core cotton 204 is provided on the rear side of the pen tip 206 and the pressing member 261. At this time, the core cotton 204 is placed in the body barrel 202 in a state of being inserted into a cylindrical body (not shown) formed of a suitable material such as PP (polypropylene). At this time, the lower end (front end) of the core cotton 204 is in contact with the protruding portion 263 of the pressing member 261, and above and behind the contact portion, the core cotton 204 is in contact with the upper end (rear end) of the pen tip 206.

Specifically, the core cotton 204 is relatively close to the pen tip 206 and the pressing member 261, and the core cotton 204 is brought into contact with the pen tip 206 and the pressing member 261. Then, in this state, the core cotton 204, the pen tip 206, and the pressing member 261 are further moved in the approaching direction, whereby the core cotton 204 is pressed by the pen tip 206 and the pressing member 261.

Also in the present embodiment, the relay core 203 is fixed to the main body cylinder 202 in the same manner as in the eighth embodiment, and the relay core 203 is inserted into the internal space 230.

Thereby, the state in which the relay core 203 is inserted from the rear side of the core cotton 204 is obtained. Further, the protruding portion main body 232 of the protruding portion 211 and the two pressing pieces 233 press the core cotton 204 from the rear to the front (the upper side and the lower side in FIG. 25).

Therefore, the core cotton 204 is pressed from above by the protruding body 232 and the two pressing pieces 233, and is pressed by the pressing member 261 from below.

Next, similarly to the eighth embodiment, the ink cartridge portion 205 is attached from the rear side of the relay core 203, and the rear end portion 229 of the main body cylinder 202 is attached from the back of the ink cartridge portion 205.

The above description of the assembly structure of the applicator 260 of the present embodiment is completed.

Hereinafter, the action of the applicator 260 of the present embodiment will be described with reference to Figs. 29 and 30.

When the pen tip 206 is directed to the lower side for writing, the ink 207 moves from the internal space 245 of the ink cartridge portion 205 to the core cotton arranging portion 208 side by gravity as shown in Fig. 29 (a). At this time, the ink 207 is moved to the lower portion of the internal space 220 of the relay core 203 through the ink supply hole 249. Further, the ink 207 that has moved to the vicinity of the lower end of the protruding portion 211 is guided to the lower side by its own gravity and the capillary force of the core cotton 204. Thereby, the ink 207 is released from the first hole 213, and is supplied to the core cotton arranging portion 208. That is, the internal space 220 of the relay core 203 serves as an ink flow path when the ink 207 is supplied.

Here, in the present embodiment, the core cotton 204 is pressed from above by the pressing piece 233. In addition to this, the state in which the core cotton 204 is pressed from below by the pressing member 261 is obtained. Therefore, a portion between the pressing piece 233 and the pressing member 261 on the lower side of the pressing piece 233 and located above the pressing member 261 forms a density portion 267 in which the relative void ratio is lowered. In other words, a portion of the core cotton 204 which is pressed downward by the pressing piece 233 or the like and pressed downward from the pressed member 261 and a portion of the core cotton 204 which is pressed upward is formed to form the intermediate density portion 267.

In the present embodiment, the density portion 267 has a lower void ratio and a higher density than the density portion 103 in the eighth embodiment in which the pressing member is not pressed from the lower side.

Thereby, in the core cotton 204, a relatively high void ratio is formed in the upper portion. On the other hand, the low density portion 254 having a low fiber density forms a density portion 267 having a relatively low void ratio and a high fiber density in the lower portion. Further, the nib 206 is a high-density portion having a higher fiber density than the density portion 267 of the core cotton 204.

In other words, in the present embodiment, a portion having a continuous fiber density is formed in the upper portion and the lower portion of the core cotton 204, and the fiber density is increased downward. Further, from the rear end of the core cotton 204 to the front end of the pen tip 206, the low density portion 254, the medium density portion 267, and the high density portion (the pen tip 206) are continuous.

In the present embodiment, as shown in Fig. 29 (a), the vicinity of the upper end of the pressing member 261 to the upper end of the second hole 214 is the middle density portion 267, and the portion near the upper end of the second hole 214 to the rear portion. It is used as the low density portion 254.

Thereby, the ink 207 can be stably supplied to the pen tip 206. For example, even if the ink 207 is incapable of reaching the ink of the opening of the first hole 213 by its own gravity, the ink 207 can be introduced from the relay core 203 to the core cotton 204 and moved from the core cotton 204 to the pen tip 206.

In the same manner as in the above-described embodiment, the ink 207 is continuously supplied to the core cotton arranging unit 208 from the state shown in Fig. 29 (a), whereby the core cotton 204 is continuously impregnated with ink 207 as shown in Fig. 29 (b). .

When the ink 207 is continuously impregnated into the core cotton 204, the water level (liquid level) of the ink 207 of the core cotton arranging portion 208 is continuously increased (the boundary line of the water level is closer to the ink tank portion 205 side). The water level of the ink 207 of the rising core cotton arranging portion 208 reaches the height (position) of the first hole 213 soon, and as shown in FIG. 29(c), rises to a position higher than the first hole 213 (close to the ink). The position of the box portion 205).

After the water level of the ink 207 of the core cotton arranging portion 208 is continuously increased, as soon as the water level 207 is as shown in FIG. 29(d), the ink 207 is filled to the position of the second hole 214. Thereby, the second hole 214 is substantially closed by the liquid-sealed state of the impregnated ink 207. Then, the outside air cannot be introduced into the internal space 245 of the ink tank unit 205, and the supply of the ink 207 to the core cotton arranging unit 208 is stopped.

When the writing is continued in the state in which the ink 207 is impregnated on the front side of the core cotton 204 as shown in FIGS. 29(d) and 30(a), the ink 207 impregnated in the core cotton 204 is soon reduced, thereby As shown in Fig. 30 (b), the liquid closed state of the second hole 214 is released. As a result, the outside air is quickly charged into the ink tank unit 205 again, so that the supply of the ink 207 to the core cotton arranging unit 208 is started. Then, as shown in FIG. 30(c), the ink 207 is continuously supplied to the core cotton arranging unit 208 until the second hole 214 is again in a liquid-tight state by the impregnated ink 207. In this manner, the ink 207 is supplied to the core cotton arranging portion 208 and the core cotton 204 each time the ink 207 is reduced by writing. Further, the ink 207 supplied to the core cotton 204 does not easily flow from the medium density portion 253 to the low density portion 254. That is, since the ink 207 supplied to the core cotton 204 easily flows toward the pen tip 206 side, the ink 207 can be stably supplied to the pen tip 206.

This concludes the description of the eleventh embodiment.

In each of the above embodiments, the form in which the protruding portion main body 232 of the relay core 203 is in contact with the core cotton 204 will be described, but the protruding portion main body 232 and the core cotton 204 may not be in contact with each other. However, if the protruding portion body 232 (the communication hole) is not in contact with the core cotton 204, when the inner diameter of the protruding portion body 232 is small, the surface tension acting on the ink 207 may exceed the gravity, and the ink may be made. Since the water 207 is retained in the hollow portion 221, the amount of outflow of the ink 207 per unit time is reduced when the ink 207 is supplied to the core cotton arranging portion 208. On the other hand, when the protruding portion body 232 is in contact with the core cotton 204, the ink 207 is sucked by the capillary force of the core cotton 204, and the ink 207 flows smoothly, so that even if the inner diameter of the relay core 203 is small, The outflow of the ink 207 per unit time is still stable. Therefore, it is preferable that the protrusion body 232 is in contact with the core cotton 204.

Further, in each of the above embodiments, the core cotton 204 is disposed so as to cover the entire opening of the first hole 213 and the second hole 214, but the present invention is not limited thereto. The opening of the first hole 213 or the second hole 214 may not be covered by the core cotton 204, and may be formed by covering only a part of the opening of the first hole 213 or the second hole 214 with the core cotton 204. However, if the core cotton 204 is disposed so as to cover the entire opening of the first hole 213, the ink 207 located in the vicinity of the front end of the protruding portion 211 can be more reliably guided to the core cotton 204 side, which is preferable. In other words, the protruding portion 211 and the core cotton 204 may be disposed so that the ink 207 located in the vicinity of the front end of the protruding portion 211 in the internal space 220 can be introduced into the core cotton 204 by the capillary force of the core cotton 204.

Further, in each of the above-described embodiments, the pressing piece 233 is formed in a flat shape and is in contact with the side surface of the protruding portion main body 232 and the front end surface 225 of the base portion 212. However, the relay core of the present invention is not limited thereto. The pressing piece of the relay core used in the applicator of the present invention can be configured such that the pressing piece 273 having a substantially rectangular parallelepiped shape is not in contact with the base portion 212 as in the case of the relay core 270 shown in FIG. Further, the shape of the pressing piece may be a part having a roundness or a configuration of removing the corner portion. And, the pressing piece and the protruding part The contact portion of the body 232 may also be formed by partially creating a slit by removing excess portions or the like.

Although either of the pressing pieces of the above-described embodiments is provided with two relay cores, the number of pressing pieces may be one, and may be three or more.

In each of the above-described embodiments, the protruding portion of the relay core is brought into contact with the upper end surface of the core cotton at an angle of substantially 90 degrees. However, the arrangement angle (insertion angle) of the relay core is not limited thereto. Although the angle formed by the protruding portion of the relay core and the upper end surface of the core cotton is not particularly limited, it is preferable that the protruding portion of the relay core is in contact with the upper end surface of the core cotton so as to be 70 degrees or more and 90 degrees or less. .

Although the ink used in each of the above embodiments is not particularly limited, it may be suitably used when the viscosity is 20 degrees Celsius, and the viscosity is more than 6.7 mPa. s, and the contact angle with the solid surface is less than 53.8 degrees, and the surface tension is less than 33.5 mN/m.

In each of the above embodiments, the relay core and the ink cartridge portion are detachable, but the coating tool of the present invention is not limited thereto. The relay core and the ink tank can also be integrally formed. That is, it is also possible to replace the integrated relay core and the ink tank when replacing the ink.

Further, in each of the above embodiments, the front end portion 228 of the main body barrel 202 is integrally attached to the ink tank portion 205, and the end portion 229 of the main body barrel 202 is fitted after the ink tank portion 205, but the coating of the present invention is applied. It is not limited to this. It is also possible to integrally form the rear end portion of the body barrel and the ink tank. That is, it may be an applicator that can replace the ink by replacing the rear end portion of the body barrel. For example, it is also possible to make the rear end portion of the body barrel The relay core is integrally formed, and the rear end portion of the body barrel is used as an ink cartridge.

In each of the above embodiments, the diameter of the first hole is the same as the diameter of the internal space (the length in the short-side direction), but these may be different. The diameter of the first hole and the diameter of the hollow portion may also be different. Similarly, the diameter of the first hole and the diameter of the connecting hole may be different. These diameters may be larger or smaller than the diameter of the first hole.

In each of the above embodiments, the first hole 213 is provided on the circular surface of the protruding end of the protruding portion main body 232, and the second hole 214 is provided in the vicinity of the front end of the side surface of the protruding portion main body 232. The position of the hole of the protrusion body 232 is not limited to the front end portion. For example, the first hole and the second hole may be provided on the side surface of the protruding body 232. At this time, the positions of the first holes and the second holes in the axial direction of the protruding portion body 232 may be the same or may be separated.

Further, the first hole and the second hole may be formed together on the surface 224 located at the front end of the protruding portion main body 232. At this time, the surface located at the front end of the protruding portion main body 232 may not be perpendicular to the protruding direction of the protruding portion main body 232, and may be a surface formed by chamfering.

In each of the above embodiments, the shape of the protruding portion main body 232 is a cylindrical shape, but the shape of the protruding portion is not limited thereto. Further, the number of holes provided in the protruding portion body 232 is not limited to two. These may be one or two or more.

That is, a plurality of second holes 214 may be provided in the side surface portion of the protruding portion main body 232.

Further, a tapered portion that is reduced in diameter toward the front end in the protruding direction may be provided at the front end portion of the protruding portion body 232 in the protruding direction. Further, a configuration may be adopted in which the first hole or the second hole is formed in the tapered portion formed.

In the eleventh embodiment, the pressing member 261 which is a member separately formed from the main body barrel 202 is inserted into the core cotton arranging portion 208. However, the pressing member 261 used in the present invention is not limited thereto. For example, the pressing member may be integrally formed with the body barrel. In other words, the protrusion protruding from the outer side to the inner side (from the lower side to the upper side) can be integrally formed on the inner peripheral surface of the core cotton arranging portion, and the formed protrusion can be used as the pressing member. In other words, the pressing member may be such that one portion of the core cotton is in a contracted state when the core cotton is disposed in the core cotton arranging portion.

The twelfth embodiment of the present invention including such a projection (pressing member) will be described in detail below. The same portions as those in the above-described embodiments are denoted by the same reference numerals and will not be described.

In the applicator 280 of the present embodiment, as shown in FIG. 32, a pressing protrusion 282 is provided in the vicinity of the front end of the core cotton arranging portion 281.

As shown in FIGS. 32 and 33, the pressing projection 282 is integrally formed with the inner peripheral surface of the core cotton arranging portion 281, and is formed into a substantially rectangular parallelepiped shape, and is formed from the outer side to the inner side (the central axis of the applicator 280) on the opposite core. The inner circumferential surface of the cotton arranging portion 281 protrudes in a substantially vertical direction. The pressing protrusion 282 extends from the front end of the core cotton arranging portion 281 to a position slightly forward of the center of the front and rear direction of the core cotton arranging portion 281. That is, the pressing protrusion 282 extends in the front-rear direction of the applicator 280 (the upper and lower directions of FIG. 32, the longitudinal direction of the applicator 280). Moreover, the top surface (rear end surface) of the pressing protrusion 282 is an inclined surface, and the front end is directed toward the protruding direction. The height (the length in the upper and lower directions of Fig. 32 and the length in the extending direction) becomes low (short). That is, the top surface of the pressing protrusion 282 is inclined obliquely downward (obliquely forward).

Further, the width L11 of the pressing protrusion 282, that is, the maximum length L11 of the protruding direction of the pressing protrusion 282 is desirably 0.5 mm or more and 2.0 mm or less, and more desirably 1.0 mm or so.

Further, the length L12 of the pressing projection 282, that is, the maximum length L12 of the pressing projection 282 in the longitudinal direction (the length in the upper and lower directions in FIG. 32, the length in the front-rear direction of the applicator 280, and the length in the extending direction of the pressing projection 282) is expected to be 5.0 mm or more and 15.0 mm or less, more desirably 7.5 mm or more and 11.5 mm or less, and most desirably about 9.5 mm.

Further, the thickness L13 of the pressing protrusion 282, that is, the length L13 in the direction perpendicular to the width L11 of the pressing protrusion 282 and the length L12 of the pressing protrusion 282 is desirably 0.5 mm or more and 2.0 mm or less, and more desirably 0.5 mm or more and 1.0 mm or less. The most desirable is around 0.8 mm.

In addition, a plurality of the pressing protrusions 282 are formed in the circumferential direction of the inner peripheral surface of the core cotton arranging portion 281, and six pressing protrusions are arranged in parallel at intervals (a part of the pressing protrusions is omitted, and illustration is omitted. ).

Next, the mounting structure of the applicator 280 of the present embodiment will be described with reference to FIG.

In the present embodiment, the pen tip 206 is also attached to the front end portion of the front end portion 228 of the body barrel 202. Further, in the inner space 230 of the front end portion 228 and on the rear side of the pen tip 206, a core cotton 204 is disposed. At this time, the core cotton 204 is placed in the body barrel 202 in a state of being inserted into a cylindrical body (not shown) formed of a suitable material such as PP (polypropylene). Furthermore, at this time, the core cotton 204 The front end is in contact with the rear end of the nib 206.

In the present embodiment, the inner peripheral surface of the core cotton arranging portion 281 of the inner space 230 in which the core cotton 204 is disposed is provided with a pressing protrusion 282 that protrudes toward the center of the applicator 280. Therefore, the core cotton 204 is pressed by the pressing protrusion 282 from the outside to the inside (to the center of the applicator 280).

Specifically, when the core cotton 204 is inserted into the core cotton arranging portion 281 from the rear in a state of being inserted into the cylindrical body, the core cotton 204 is pressed to a portion surrounded by the pressing protrusion 282 of the core cotton arranging portion 281. At this time, the radial length of the core cotton 204 is longer than the radial length of the portion surrounded by the pressing protrusion 282 (the radial length of the core cotton 204 and the radial direction of the portion other than the pressing protrusion 282 of the core cotton arranging portion 281) The length is approximately the same). Therefore, when the core cotton 204 is pressed into the portion surrounded by the pressing protrusion 282, the core cotton 204 is pressed by the pressing protrusion 282 to press the outer peripheral surface. Further, as described above, an inclined surface is formed on the top surface of the pressing protrusion 282. Thereby, when the core cotton 204 is pressed, it is a structure which can be easily pressed.

Also in the present embodiment, as in the above embodiment, the relay core 203 is fixed to the main body cylinder 202, and the relay core 203 is inserted into the internal space 230.

Thereby, the state in which the relay core 203 is inserted from the rear side of the core cotton 204 is obtained. Further, the protruding portion main body 232 of the protruding portion 211 and the two pressing pieces 233 press the core cotton 204 from the rear to the front (the upper side and the lower side in FIG. 32).

Therefore, the core cotton 204 is pressed from the upper portion 232 and the two pressing pieces 233 from above, and is pressed from the side by the pressing protrusion 282.

Further, in the same manner as in the above-described eighth embodiment, the ink cartridge portion 205 is attached from the rear side of the relay core 203, and the main body cartridge is attached from the rear of the ink cartridge portion 205. 202 rear end portion 229.

The above description of the assembly structure of the applicator 280 of the present embodiment is completed.

Hereinafter, the action of the applicator 280 of the present embodiment will be described with reference to Figs. 34 and 35.

When the pen tip 206 is directed to the lower side for writing, the ink 207 moves from the internal space 245 of the ink cartridge unit 205 to the core cotton arranging portion 281 by gravity as shown in Fig. 34(a). At this time, the ink 207 is moved to the lower portion of the internal space 220 of the relay core 203 through the ink supply hole 249. Further, the ink 207 that has moved to the vicinity of the lower end of the protruding portion 211 is guided to the lower side by its own gravity and the capillary force of the core cotton 204. Thereby, the ink 207 is released from the first hole 213, and is supplied to the core cotton arranging portion 281. That is, the internal space 220 of the relay core 203 serves as an ink flow path when the ink 207 is supplied.

Here, in the present embodiment, the core cotton 204 is pressed from above by the pressing piece 233. In addition, the state in which the core cotton 204 is pressed from the outside to the inside by the pressing protrusion 282 is used. Therefore, a portion of the lower side of the pressing piece 233 and located inside the pressing protrusion 282 forms a density portion 283 in which the relative void ratio is lowered. In other words, a portion of the core cotton 204 that is pressed downward by the pressing piece 233 or the like and pressed against the pressed protrusion 282 from the outside and pressed toward the inner side of the core cotton 204 is accumulated to form the medium density portion 283.

Further, in the present embodiment, the density portion 283 has a lower void ratio and a higher density than the density portion 103 in the eighth embodiment in which the pressing projection 282 is not pressed by the pressing projection 282 from below.

Thereby, in the core cotton 204, a relatively high void ratio is formed in the upper portion. On the other hand, the low density portion 254 having a low fiber density forms a density portion 283 having a relatively low void ratio and a high fiber density in the lower portion. Further, the nib 206 is a high-density portion having a higher fiber density than the density portion 283 of the core cotton 204.

In other words, in the present embodiment, a portion having a continuous fiber density is formed in the upper portion and the lower portion of the core cotton 204, and the fiber density is increased downward. Further, from the rear end of the core cotton 204 to the front end of the pen tip 206, the low density portion 254, the medium density portion 283, and the high density portion (the pen tip 206) are continuous.

Further, in the present embodiment, as shown in Fig. 34 (a), the middle portion is formed from the lower end of the core cotton 204 to the upper end of the second hole 214, and the portion near the upper end of the second hole 214 is rearward. The low density portion 254 is formed.

Thereby, the ink 207 can be stably supplied to the pen tip 206. For example, even if the ink 207 is incapable of reaching the ink of the opening of the first hole 213 by its own gravity, the ink 207 can be introduced from the relay core 203 to the core cotton 204 and moved from the core cotton 204 to the pen tip 206.

In the same manner as in the above-described eighth embodiment, the ink 207 is continuously supplied to the core cotton arranging portion 281 from the state shown in Fig. 34 (a), whereby the core cotton 204 is continuously impregnated as shown in Fig. 34 (b). Ink 207.

When the ink 207 is continuously impregnated into the core cotton 204, the water level (liquid level) of the ink 207 of the core cotton arranging portion 281 is continuously increased (the boundary line of the water level is approaching toward the ink tank portion 205 side). The water level of the ink 207 of the rising core cotton arranging portion 281 reaches the height (position) of the first hole 213 soon, and as shown in FIG. 34(c), rises to a position higher than the first hole 213 (close to the ink). The position of the box portion 205).

When the water level of the ink 207 of the core cotton arranging portion 281 continues to rise, the ink 207 is filled to the position of the second hole 214 as soon as the liquid 207 is as shown in FIG. 34(d). Thereby, the second hole 214 is substantially closed by the liquid-sealed state of the impregnated ink 207. Then, the outside air cannot be introduced into the internal space 245 of the ink tank unit 205, and the supply of the ink 207 to the core cotton arranging unit 281 is stopped.

When the writing is continued in the state where the ink 207 is impregnated on the front side of the core cotton 204 as shown in FIGS. 34(d) and 35(a), the ink 207 impregnated into the core cotton 204 is soon reduced. The liquid closed state of the second hole 214 is released as shown in Fig. 34 (b). As a result, the outside air is quickly charged into the ink tank unit 205 again, so that the ink 207 is started to be supplied to the core cotton arranging unit 281. Then, as shown in FIG. 34(c), the ink 207 is continuously supplied to the core cotton arranging portion 281 until the second hole 214 is again in a liquid-tight state by the impregnated ink 207. In this manner, the ink 207 is supplied to the core cotton arranging portion 281 and the core cotton 204 each time the ink 207 is reduced by writing. Further, the ink 207 supplied to the core cotton 204 does not easily flow from the medium density portion 283 to the low density portion 254. That is, since the ink 207 supplied to the core cotton 204 easily flows toward the pen tip 206 side, the ink 207 can be stably supplied to the pen tip 206.

This concludes the description of the twelfth embodiment.

[Examples]

The present invention has been described with reference to specific embodiments, but the embodiments are not intended to limit the invention.

The coating tools of the following Examples 1 to 4 were produced separately. Further, the amount of ink discharged from the coating material of each of the examples to the core cotton was investigated. At this time, the investigation was carried out for each of the examples in a plurality of coating tools. In addition, coating The conditions are the same except for the relay core with ink.

As a result, the results as shown in Table 1 below were obtained. Further, in the following embodiments, when the ink outflow amount is 2.7 g or more, ink leakage may occur.

[Example 1]

An applicator according to the eighth embodiment of the applicator 60 (see FIG. 13), wherein the thickness L2 of the pressing piece 76 of the relay core 5 is 2.0 mm, and the maximum width L3 of the protruding portion 11 is set. It is 13.0 mm.

[Embodiment 2]

An applicator according to the eighth embodiment of the applicator 60 (see FIG. 13), wherein the thickness L2 of the pressing piece 76 of the relay core 5 is 1.5 mm, and the maximum width L3 of the protruding portion 11 is set. It is 10.5 mm.

[Example 3]

An applicator according to the above-described eighth embodiment of the applicator 60 (see FIG. 13), wherein the thickness L2 of the pressing piece 76 of the relay core 5 is 1.5 mm, and the maximum width L3 of the protruding portion 11 is set. Set to 13.0 mm.

[Example 4]

An applicator according to the above-described eighth embodiment of the applicator 60 (see FIG. 13), wherein the thickness L2 of the pressing piece 76 of the relay core 5 is 2.0 mm, and the maximum width L3 of the protruding portion 11 is set. Set to 10.5 mm.

As a result, the following results were obtained: the maximum and average values of the ink outflow amount of the applicator of Example 1 were the smallest, and ink leakage was not easily generated.

Further, in the coating tool of the first embodiment, the ink discharge amount to the core cotton of the yarn density, the total fineness of the yarn, and the single yarn fineness were investigated. Specifically, the amount of ink flowing out to the core cotton was investigated for the following core cotton A, core cotton B, and core cotton C. At this time, the investigation was carried out for each of the core cottons in a plurality of coating tools. Moreover, the conditions other than the density of the core cotton are completely the same.

As a result, the results of Table 2 below were obtained.

[core cotton A]

A core cotton having a yarn density of 0.151 g/cm ³ , a total fineness of the yarn of 230,000 dtex, and a single yarn fineness of 5.6 dtex (5.0 denier).

[core cotton B]

A core cotton having a yarn density of 0.169 g/cm ³ , a total fineness of yarn of 290000 dtex, and a single yarn fineness of 2.3 dtex (2.1 denier).

[core cotton C]

A core cotton having a yarn density of 0.187 g/cm ³ , a total fineness of the yarn of 320000 dtex, and a single yarn fineness of 3.3 dtex (3.0 denier).

In this way, the following results were obtained: the maximum and average values of the ink outflow amount of the coating material using the core cotton A were the smallest, and the ink leakage was not easily generated. Also, in the order of core cotton C, core cotton B, and core cotton A, it is not easy to produce ink discharge Leakage, and in the coating tool of Example 1, the lower the density of the core yarn, the less likely the ink leakage occurred.

Further, in the applicator according to the present invention, the amount of ink flowing out to the core cotton is investigated for the case where the pressing member is provided in the core cotton arranging portion and the case where the pressing member is not provided. At this time, the investigation was carried out with a plurality of coating tools for the presence or absence of the pressing member. Further, the pressing member is a pressing member of the following fifth embodiment, and the conditions other than the presence or absence of the pressing member are completely the same. As a result, the results as shown in Table 3 below were obtained.

[Example 5]

A pressing member is based on the pressing member 261 of the applicator according to the eleventh embodiment, and the height L7 of the protruding portion 263 is 5.0 mm, and the thickness L8 of the protruding portion 263 is 0.8 mm, and the protruding portion 263 is used. The width L9 is set to 3.0 mm.

As a result, the coating tool having the pressing member has a small maximum value and an average value of the ink outflow amount, and is less likely to cause ink leakage.

However, as described above, when the ink outflow amount is 2.7 g or more, ink leakage occurs. Therefore, as a result of the investigation, the relative saturation amounts of the maximum outflow amount, the minimum outflow amount, and the average outflow amount of the ink in the case where the pressing member was provided were 14.3%, 26.9%, and 6.5%, respectively. Further, the relative saturation amounts of the maximum outflow amount, the minimum outflow amount, and the average outflow amount of the ink in the case where the pressing member was not provided were 22.9%, 55.2%, and 6.8%, respectively.

In this manner, the case where the pressing member is provided is displayed, and the relative saturation amount is lowered as compared with the case where the pressing member is not provided, and ink leakage is less likely to occur.

Next, the coating tools of the following Examples 6 and 7 were produced, respectively. Further, the amount of ink discharged from the coating material of each of the examples to the core cotton was investigated. At this time, the investigation was carried out for each of the examples in a plurality of coating tools. In addition, the conditions other than the insertion length of the relay core to the core cotton are completely the same.

As a result, the results as shown in Table 4 below were obtained.

[Embodiment 6]

An applicator having the applicator 60 (see FIG. 13) of the eighth embodiment as a standard, and the length L10 of the portion in which the intermediate core 5 is inserted into the core cotton 4 is set to 16.5 mm, and the front end of the relay core is The length of the rear end of the pen tip 6 is set to 6.0 mm, and the length of the portion of the pen tip 6 inserted into the core cotton 4 is set to 2.0 mm.

[Embodiment 7]

An applicator having the applicator 60 (see FIG. 13) of the eighth embodiment as a standard, and the length L10 of the portion in which the intermediate core 5 is inserted into the core cotton 4 is set to 20.5 mm, and the front end of the relay core is The length of the rear end of the pen tip 6 is set to 2.0 mm, and the length of the portion of the pen tip 6 inserted into the core cotton 4 is set to 2.0 mm.

As a result, the following results were obtained: the maximum and average values of the ink outflow amount of the coating device of Example 7 were small, and ink leakage was not easily caused.

Further, in the applicator according to the present invention, in the case where the pressing protrusion is provided in the core cotton arranging portion and the pressing protrusion is not provided, Conduct an investigation into the amount of ink flowing out of the core cotton. At this time, the investigation system performed with a plurality of coating tools for the presence or absence of the pressing protrusion. Further, a coating tool having a pressing protrusion was used as the coating tool of the following Example 8. At this time, the conditions other than the presence or absence of the pressing protrusions are completely the same, and the length L10 of the portion of the intermediate core 5 inserted into the core cotton 4 is set to 16.5 mm, and the length from the front end of the relay core to the rear end of the pen tip 6 is set to 2.0. Mm, the length of the portion of the pen tip 6 inserted into the core cotton 4 is set to 6.0 mm.

As a result, the results as shown in Table 5 below were obtained.

[Embodiment 8]

According to the twelfth embodiment, the applicator has six pressing protrusions spaced apart from each other in the circumferential direction of the core cotton arrangement portion 281, and the width L11 of each pressing protrusion 282 is set to 1.0 mm, and the protrusion is pressed. The length L12 of 282 is set to 10.0 mm, and the thickness L13 of the pressing protrusion 282 is set to 1.0 mm.

As a result, the coating tool having the pressing protrusions is provided, and the maximum value and the average value of the ink outflow amount are small, and ink leakage is less likely to occur.

1‧‧‧Applicator

2‧‧‧ Body tube

3‧‧‧Ink cartridge (coating liquid storage unit)

4‧‧‧core cotton (coating liquid sorbent)

5‧‧‧Relay core (flow path forming part)

6‧‧‧ nib (coating body)

7‧‧‧Ink (coating solution)

8‧‧ ‧ core cotton configuration department

11‧‧‧Protruding

12‧‧‧Base Department

13‧‧‧1st hole (connecting hole)

14‧‧‧2nd hole (connecting hole)

21‧‧‧ hollow part

22‧‧‧ hollow part

28‧‧‧ front end

29‧‧‧ Backend section

30‧‧‧ Space

33‧‧‧1st hole (connecting hole)

34‧‧‧2nd hole (connecting hole)

40‧‧‧Relay core (flow path forming part)

41‧‧‧Relay core (flow path forming part)

44‧‧‧Base Department

45‧‧‧ Body tube

51‧‧‧Protruding

52‧‧‧Protruding

53a‧‧‧1st hole (connecting hole)

53b‧‧‧2nd hole (connecting hole)

60‧‧‧Applicator

61‧‧‧ Body tube

62‧‧‧Relay core (flow path forming part)

63‧‧‧Ink case (coating liquid storage unit)

73‧‧‧Protruding

74‧‧‧Base Department

76‧‧‧Pressing piece (pressing part)

84‧‧‧ hollow part

85‧‧‧ hollow part

108‧‧‧Pressing piece (pressing part)

109‧‧‧Relay core (flow path forming part)

110‧‧‧Pressing piece (pressing part)

111‧‧‧Relay core (flow path forming part)

202‧‧‧ Body tube

203‧‧‧Relay core (flow path forming part)

204‧‧‧core cotton (coating liquid sorbent)

205‧‧‧Ink case (coating liquid storage unit)

206‧‧‧ nib (coating body)

207‧‧‧Ink (coating solution)

211‧‧‧ protruding parts

212‧‧‧Base Department

213‧‧‧1st hole (connecting hole)

214‧‧‧2nd hole (connecting hole)

221‧‧‧ hollow part

233‧‧‧Pressing piece (pressing part)

260‧‧‧Applicator

261‧‧‧ Pressing member (sucking body shrinking member)

263‧‧‧ protruding parts

270‧‧‧Relay core (flow path forming part)

273‧‧‧Pressing piece (pressing part)

280‧‧‧Applicator

282‧‧‧ Pressing protrusion (sucking body shrinking member)

Fig. 1 is a cross-sectional view showing an applicator according to a first embodiment of the present invention.

Fig. 2 is a perspective view showing the relay core used in the first embodiment of the present invention upside down.

Figure 3 is a cross-sectional view of the A-A of the relay core of Figure 2.

Fig. 4 is an explanatory view showing a state in which the core cotton arranging portion is filled with ink in the applicator of the first embodiment, and the ink is filled in the order of (a) to (d).

Fig. 5 is an explanatory view showing the liquid level (water level) of the ink when the ink is filled in the core cotton arranging portion in the coating tool according to the first embodiment, and the ink is filled again from the ink cartridge, and (a) shows the core cotton configuration. When the ink is filled in the portion, (b) shows the state in which the ink in the core cotton arranging portion is reduced, and (c) shows that the ink is placed in the core cotton arranging portion.

FIG. 6 is an explanatory view showing a state in which the core cotton arranging portion of the coating tool of the relay core according to the second embodiment of the present invention is filled with ink, and the ink is filled in the order of (a) to (d).

Fig. 7 is a cross-sectional view showing an applicator according to a third embodiment of the present invention.

Fig. 8 is a perspective view showing a relay core according to a fourth embodiment of the present invention.

Fig. 9 is a perspective view showing a relay core having a protruding portion according to a fifth embodiment of the present invention.

Fig. 10 is a perspective view showing a relay core having a protruding portion according to a sixth embodiment of the present invention.

Fig. 11 is a perspective view showing a relay core having a protruding portion according to a seventh embodiment of the present invention.

12(a) to (m) are explanatory views showing the shape of the opening of the hole formed in the relay core of each form different from that of Fig. 2.

Figure 13 is a cross-sectional view showing an applicator according to an eighth embodiment of the present invention.

Fig. 14 is a perspective view showing the relay core used in the eighth embodiment of the present invention upside down.

Figure 15 is a plan view of the relay core of Figure 14 as seen from the direction A.

Figure 16 is a cross-sectional view of the B-B of the relay core of Figure 14.

Fig. 17 is a perspective view showing an ink tank unit used in an eighth embodiment of the present invention.

Figure 18 is a cross-sectional view along line A-A of the ink tank portion of Figure 17.

Fig. 19 is a cross-sectional view showing the applicator according to the eighth embodiment of the present invention, showing a state in which no ink is present inside.

Fig. 20 is an explanatory view showing a state in which the relay core and the ink tank portion of Fig. 13 are connected, and is connected in the order of (a) to (b). In addition, the relay core portion is broken and displayed.

Fig. 21 is an explanatory view showing a state in which the core cotton arranging portion is filled with ink in the applicator of the eighth embodiment, and the ink is filled in the order of (a) to (d).

Fig. 22 is an explanatory view showing the liquid level (water level) of the ink when the ink is filled in the core cotton arranging portion in the applicator of the eighth embodiment, and the ink is filled again from the ink cartridge, and (a) shows the core cotton configuration. When the ink is filled in the portion, (b) shows the state in which the ink in the core cotton arranging portion is reduced, and (c) shows that the ink is placed in the core cotton arranging portion.

Figure 23 is a perspective view showing a relay core according to a ninth embodiment of the present invention.

Fig. 24 is a perspective view showing a relay core according to a tenth embodiment of the present invention.

Figure 25 is a cross-sectional view showing an applicator according to an eleventh embodiment of the present invention.

Figure 26 is a perspective view showing the pressing member of Figure 25.

Figure 27 is a plan view showing the pressing member of Figure 26.

Figure 28 is a cross-sectional view showing the A-A of the pressing member of Figure 26.

FIG. 29 is an explanatory view showing a state in which the core cotton arranging portion is filled with ink in the coating tool according to the eleventh embodiment, and the ink is filled in the order of (a) to (d).

FIG. 30 is an explanatory view showing the liquid level (water level) of the ink when the ink is filled in the core cotton arranging portion in the coating tool according to the eleventh embodiment, and the ink is filled again from the ink cartridge, and (a) shows the core cotton configuration. When the ink is filled in the portion, (b) shows the state in which the ink in the core cotton arranging portion is reduced, and (c) shows that the ink is placed in the core cotton arranging portion.

Figure 31 is a perspective view showing a relay core in a form different from that of Figure 14.

Figure 32 is a cross-sectional view showing an applicator according to a twelfth embodiment of the present invention.

Figure 33 is a partially broken perspective view showing the core cotton arranging portion of Figure 32.

Fig. 34 is an explanatory view showing a state in which the core cotton arranging portion is filled with ink in the applicator of the twelfth embodiment, and the ink is filled in the order of (a) to (d).

35 is an explanatory view showing the liquid level (water level) of the ink when the ink is filled in the core cotton arranging portion in the coating tool according to the twelfth embodiment, and the ink is filled again from the ink cartridge, and (a) shows the core cotton configuration. When the ink is filled in the portion, (b) shows the state in which the ink in the core cotton arranging portion is reduced, and (c) shows that the ink is placed in the core cotton arranging portion.

1‧‧‧Applicator

2‧‧‧ Body tube

3‧‧‧Ink cartridge (coating liquid storage unit)

4‧‧‧core cotton (coating liquid sorbent)

5‧‧‧Relay core (flow path forming part)

6‧‧‧ nib (coating body)

7‧‧‧Ink (coating solution)

8‧‧ ‧ core cotton configuration department

11‧‧‧Protruding

12‧‧‧Base Department

13‧‧‧1st hole (connecting hole)

14‧‧‧2nd hole (connecting hole)

21‧‧‧ hollow part

22‧‧‧ hollow part

28‧‧‧ front end

29‧‧‧ Backend section

30‧‧‧ Space

Claims (27)

An applicator comprising: a coating liquid storage portion through which a coating liquid to be filled flows; and a coating body for applying a coating liquid; and an impregnation coating between the coating liquid storage portion and the coating body The liquid coating liquid absorbing body is provided with a flow path forming portion having a flow path through which the coating liquid can flow between the coating liquid storage portion and the coating liquid absorbing body; and the flow path forming portion has one protruding portion. The protruding portion protrudes toward the application body side, and has a hollow portion inside the protruding portion, and two or more communication holes communicating with the hollow portion are provided. The applicator according to claim 1, wherein the flow path forming portion includes a pressing portion, and at least a part of the pressing portion contacts the coating liquid absorbing body from the side of the coating liquid accommodating portion. An applicator comprising: a coating liquid storage portion through which a coating liquid to be filled flows; and a coating body for applying a coating liquid; and an impregnation coating between the coating liquid storage portion and the coating body The liquid coating liquid sorbent body is provided with a flow path forming portion having a flow path through which the coating liquid can flow between the coating liquid storage portion and the coating liquid absorbing body; and the flow path forming portion includes at least one protrusion The protruding portion protrudes toward the application body side, and has a hollow portion formed therein, and is provided with a communication hole that communicates the hollow portion with the outside; at least a part of the pressing portion contacts the coating liquid from the coating liquid storage portion side. body. The coating device of claim 2 or 3, wherein the pressing portion is protruded from the above A flat-shaped projection that protrudes substantially perpendicularly outward from the side of the portion, and extends from the proximal end portion of the protruding direction of the protruding portion to the vicinity of the front end portion. The applicator of claim 2 or 3, wherein the pressing portion has a length in a direction substantially perpendicular to a direction in which the protruding portion protrudes and a protruding direction of the pressing portion, that is, a thickness of the pressing portion is 1.0 mm. Above 3.0 mm or less. The applicator of claim 2 or 3, wherein the length of the protruding portion of the pressing portion is 2.0 mm or more and 4.5 mm or less. The applicator of claim 2 or 3, wherein the pressing portion is formed in plural, and at least one of the pressing portions is disposed at a position opposite to the protruding portion, from the protruding end of the pressing portion to the other side The distance between the protruding ends of the pressing portions is 8.5 mm or more and 14.0 mm or less. The applicator of claim 2 or 3, wherein the pressing portion is in the form of a flat plate and extends from a proximal end portion of the protruding portion to a vicinity of the front end portion. The applicator according to any one of claims 1 to 3, wherein the communication hole is provided in two or more, and at least one of the communication holes is provided near the front end of the protrusion, and the other communication holes are provided in the communication hole. It leans toward the base end side of the protrusion. The applicator according to claim 2 or 3, wherein the end of the pressing portion on the application body side is located closer to the coating liquid storage portion than the communication hole, and the protruding portion is in contact with the coating liquid absorbing body. The coating tool according to any one of claims 1 to 3, wherein the coating liquid is sorbed One part of the body is disposed inside the flow path forming portion. The applicator according to any one of claims 1 to 3, wherein the flow path forming portion is formed by a base portion and a protruding portion, and the base portion and the protruding portion are cylindrical in shape having different diameters and have respective centers connected thereto A part of the hollow hole is provided with a hole communicating with the hollow hole respectively at a circular surface of the front end of the protruding portion and a front end of the side surface. The applicator of claim 12, wherein a central axis of the communication hole formed near the front end of the side surface of the protruding portion extends substantially in parallel with a protruding direction of the pressing portion. The applicator according to any one of claims 1 to 3, wherein the flow path forming portion and the coating liquid storage portion are integrally formed. The applicator according to any one of claims 1 to 3, wherein the flow path forming portion and the coating liquid storage portion are detachably attached. The coating tool according to claim 15, wherein the coating liquid accommodating portion is provided with a accommodating portion side through hole that communicates the outside and the internal space on the application body side, and the flow path forming portion is formed by the base portion and the protruding portion, and The base portion is formed with a tubular portion, and the tubular portion communicates with the hollow portion of the protruding portion. When the flow path forming portion and the coating liquid storage portion are attached, the receiving portion side through hole communicates with the tubular portion. The applicator according to any one of claims 1 to 3, wherein the absorbing body accommodating portion is formed in a portion facing the coating body, the coating liquid absorbing body is disposed in the absorbing body accommodating portion, and is accommodated in the absorbing body. a absorbing body contracting member is disposed in the portion; The sorbent contracting member comes into contact with the coating liquid sorbent, and the coating liquid sorbent body is in a contracted state. The applicator according to claim 17, wherein the sorbent contracting member is disposed at an end of the absorbing body accommodating portion on the application body side. The applicator of claim 17, wherein the coating body is a rod-shaped body, the absorbing body contracting member is an annular body; and one of the coating bodies is located in the sorbent body accommodating portion, and the absorbing body contracting member is surrounded by The state of the coated body is configured. The applicator of claim 17, wherein the sorbent shrinkage member comprises a protrusion protruding toward the side of the sorbent body of the coating liquid. The applicator of claim 20, wherein a plurality of protrusions are formed on a top surface of the sorbent shrinkage member, and the plurality of protrusions are arranged in a row in a circumferential direction. The applicator according to any one of claims 1 to 3, wherein the flow path forming portion is at least partially inserted into the coating liquid absorbing body from the side of the coating liquid accommodating portion; and the flow path forming portion is inserted with the liquid absorbing portion The length of the body is 15.0 mm or more and 25.0 mm or less in the insertion direction. The applicator according to any one of claims 1 to 3, wherein the absorbing body accommodating portion is formed in a portion facing the coating body, the coating liquid absorbing body is disposed in the absorbing body accommodating portion, and is accommodated in the absorbing body. The absorbing body contracting member is disposed in the inner portion of the absorbing body accommodating portion, and a pressing protrusion that protrudes from the outer side toward the inner side and extends in the direction including the vertical component is formed. The coating tool of claim 23, wherein the extending direction of the pressing protrusion is The length is 5.0 mm or more and 15.0 mm or less. The applicator of claim 23, wherein the length of the protruding direction of the pressing protrusion is 0.5 mm or more and 2.0 mm or less. The applicator according to claim 23, wherein the length of the pressing protrusion is substantially 0.5 mm or more and 2.0 mm or less with respect to the length of each of the extending direction of the pressing protrusion and the protruding direction of the pressing protrusion, that is, the thickness of the pressing protrusion. The applicator according to any one of claims 1 to 3, wherein the front end of the protruding portion is in contact with one end side of the coating liquid absorbing body, and the coating liquid is paired with the one end side The other end portion of the body is in contact with the coating body, and the protruding portion and the coating body are disposed at positions separated from each other by the coating liquid absorbing body therebetween, and are not in direct contact with each other, and protrude from the protruding portion. The coating liquid flowing out from the outside of the portion is supplied to the coated body via the coating liquid sorbent.