JP2012240299A - Application implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an application implement that enables a variety of coating liquids to be used, even when a continuous pipe is of a small diameter, and the stable supply of the coating liquid to be stably supplied from an ink-occuluding body to a pen tip.SOLUTION: This application implement 1 includes a coating liquid-storing part 5, a coating liquid-occluding body 4, and an applicator 6. In addition, between the coating liquid-storing part 5 and the coating liquid-occluding body 4, a flow channel-forming part 3 with a flow channel enabling the coating liquid 7 to pass, is arranged. In this case, the flow channel-forming part 3 includes a projecting part 11 and a pressing part 33. Besides, at least, a portion of the pressing part 33 is brought into contact with the coating liquid-occluding body 4 from above.

Description

The present invention relates to an applicator that supplies a built-in coating liquid to a coating body such as a pen tip. More specifically, the present invention relates to a coating liquid supply means for stabilizing the supply amount of the coating liquid to the coating body. It is related with the applicator which has.
The applicator in this specification is not limited to a writing instrument such as a felt pen, a fountain pen, a line marker, and a white board marker. For example, a liquid object such as a correction pen can be applied to an arbitrary object such as a paper surface or a white board. It is used as a general term for things that include tools for painting.

  As a coating liquid supply means for stably supplying the coating liquid to the nib (coating body), a batting (coating liquid occlusion body) capable of impregnating the ink (coating liquid) between the pen nib and the ink tank Techniques for providing such are known. According to this technique, the padding absorbs excess ink, so that ink is not supplied too much to the pen tip. Further, when the ink is insufficient at the pen tip, the ink absorbed by the batting is supplied to the pen tip, so that an insufficient supply of ink can be prevented. As a result, the ink can be stably supplied to the nib.

As an applicator using this technology, a communication pipe connecting the ink tank of the direct liquid writing instrument and the ink occlusion body (coating liquid occlusion body) is provided, and ink is transferred from the ink tank to the ink occlusion body via the communication pipe. The applicator to supply is widely known. As such an applicator, for example, there is a direct liquid writing instrument disclosed in Patent Document 1.
Here, the direct liquid writing instrument is a so-called non-operation type writing instrument. The non-operation type writing instrument is a writing instrument that can supply ink to the pen tip without performing an operation for supplying ink such as knocking the pen tip or the pen shaft.

JP 2006-212884 A

  By the way, in the applicator that supplies ink to the ink occlusion body through the communication pipe as in the invention disclosed in Patent Document 1, the communication pipe may have to be thickened depending on the ink to be used.

  Specifically, for example, when ink having a high viscosity is used, the ink is clogged in the communication pipe, and the ink flowing in the communication pipe may not reach the ink occlusion body. That is, depending on the viscosity of the ink, the ink may not flow to the ink occlusion body only by the force of the ink's own weight. In such a case, it is necessary to increase the diameter of the communication pipe so that the ink can flow easily. However, when the diameter of the communication pipe is increased, there is a design limitation that the diameter of the main body must be increased in order to install the thick communication pipe.

  In addition, when ink having a high viscosity is used, there is a problem that the ink does not soak into the ink occlusion body and the flow of ink from the ink occlusion body to the pen tip is not stable.

  Therefore, the present invention can use various application liquids in a non-operation type applicator even when the diameter of the communication pipe is small, and can stably supply the application liquid from the ink occlusion body to the pen tip. It is an object to provide a simple applicator.

  The invention according to claim 1 for solving the above-mentioned problem has a coating liquid storage part in which the filled coating liquid can flow and a coating body for applying the coating liquid, An applicator provided with a flow path forming section having a flow path through which a coating liquid can be passed between a coating liquid storage section and a coating liquid storage body, provided with a coating liquid storage body impregnated with a coating liquid between the coating bodies The flow path forming portion has at least one protruding portion and a pressing portion, the protruding portion protrudes toward the application body side, a hollow portion is formed inside, and the hollow portion and the outside communicate with each other. The applicator is characterized in that a communication hole is provided, and at least a part of the pressing portion is in contact with the application liquid storage body from above.

In the first aspect of the present invention, the flow path forming portion has a pressing portion, and at least a part of the pressing portion is in contact with the coating solution storage body from above. Thus, the capillary force of the coating liquid storage body can be increased by pressing the coating liquid storage body from above. Therefore, even when the ink has a high viscosity or when the ink does not move downward only by its own weight as in the case where the pore diameter of the communication pipe is small, the ink can be drawn into the coating liquid occlusion body by the capillary force. . That is, a wide variety of coating liquids can be employed with a communication pipe having a small diameter.
Moreover, when the upper part of the coating liquid storage body is pressed by the pressing part, a part with a reduced porosity is formed in the vicinity of the lower end of the coating liquid storage body. That is, the vicinity of the lower end of the coating liquid storage body is a high density portion having a relatively low porosity, and the vicinity of the upper end of the coating liquid storage body is a low density portion having a higher porosity than the vicinity of the lower end. That is, the density difference is formed between the upper end portion and the lower end portion of the coating liquid storage body, and the capillary force near the lower end of the coating liquid storage body is stronger than the capillary force near the upper end of the coating liquid storage body. It becomes. Here, since the coating liquid flows from a portion having a small capillary force to a large portion, the ink drawn into the coating solution storage body can be reliably moved further downward. That is, the ink supply to the pen tip can be stabilized.

  The invention according to claim 2 is the applicator according to claim 1, wherein the lower end of the pressing portion is positioned above the communication hole.

In this invention, the lower end of the said press part is located above the said communicating hole. Therefore, since the pressing portion does not hinder the contact between the communication hole and the coating liquid storage body, the communication hole and the coating liquid storage body can be reliably brought into contact with each other.
Specifically, when the lower end of the pressing portion is below the communication hole, or when the height direction of the lower end of the pressing portion and the communication hole are the same, the application liquid is occluded in the direction in which the pressing portion is separated from the protruding portion. By pressing the body, the contact between the communication hole formed in the protruding portion and the coating liquid storage body may be hindered. However, in the present invention, since the pressing portion is above the communication hole, the contact between the application liquid storage body located on the lower side of the protruding portion and the communication hole is not hindered.
Thus, when the protrusion part which is a communicating pipe contacts the coating liquid storage body, it can arrange | position so that an opening of the said hole provided in the protrusion part may cover the coating liquid storage body. As a result, the coating liquid is attracted by the capillary force of the coating liquid occlusion body, and the amount of the coating liquid flowing out from the communication pipe per time is stabilized. That is, a situation in which the flow of the coating liquid does not stagnate due to the surface tension of the coating liquid at the tip of the communication pipe does not occur.

  According to a third aspect of the present invention, the pressing portion is a plate-like protrusion that protrudes substantially perpendicularly outward from the side surface of the protruding portion, and extends from the proximal end portion in the protruding direction of the protruding portion to the distal end portion. The applicator according to claim 1, wherein the applicator extends to the vicinity.

  ADVANTAGE OF THE INVENTION According to this invention, it can provide the applicator which has a high intensity | strength press part and has a protrusion part (communication pipe | tube) with easy manufacture.

  A fourth aspect of the present invention is the applicator according to any one of the first to third aspects, wherein a part of the coating liquid storage body is disposed inside the flow path forming portion.

  According to the present invention, a part of the coating liquid occlusion body is disposed inside the flow path forming portion. As a result, even when the viscosity of the ink is high or the diameter of the protruding portion is small, even when the ink does not move to the lower discharge port only by its own weight, the application located inside the flow path forming portion If the ink contacts the liquid occlusion body, the ink can be moved further downward by the capillary force of the coating liquid occlusion body. That is, the ink can be reliably moved to the coating solution storage body side, and the ink supply can be stabilized.

  The invention according to claim 5 is the applicator according to any one of claims 1 to 4, wherein the flow path forming part and the coating liquid storage part can be detachably attached.

  According to the present invention, since the flow path forming part and the coating liquid storage part can be detachably attached, the coating liquid can be replenished only by replacing the coating liquid storage part. Therefore, replenishment of the coating liquid is easier than when the coating liquid is replenished using a separate member such as a dropper in the coating liquid container in the applicator main body.

  According to a sixth aspect of the present invention, the coating liquid storage portion is provided with a storage portion side through hole that communicates the outside and the internal space below, and the flow path forming portion is formed from a base portion and a protruding portion. A cylindrical portion is formed in the base portion, and the cylindrical portion communicates with a hollow portion of the protruding portion, and is accommodated when the flow path forming portion and the coating liquid storage portion are attached. The applicator according to claim 5, wherein the part side through hole and the tubular part communicate with each other.

  According to the structure of Claim 6, attachment and detachment of the said flow path formation part and a coating liquid storage part become easier.

According to the present invention, since the capillary force of the batting can be increased, even when the ink does not move downward only by its own weight as in the case where the hole diameter of the communication tube is small, the ink is absorbed by the capillary force. Can be drawn into the body. That is, there is an effect that a wide variety of coating liquids can be employed with a communication pipe having a small diameter.
According to the present invention, the capillary force near the lower end of the batting can be made stronger than the capillary force near the upper end. As a result, the ink drawn into the coating liquid occlusion body can be surely moved downward, so that the ink supply to the pen tip can be stabilized.

It is sectional drawing which shows the applicator of the 1st Embodiment of this invention. It is a perspective view which shows the relay core used in the 1st Embodiment of this invention upside down. It is AA sectional drawing of the relay core of FIG. It is a perspective view which shows the ink tank part used in the 1st Embodiment of this invention. It is AA sectional drawing of the ink tank part of FIG. It is sectional drawing which shows the applicator of the 1st Embodiment of this invention, and shows a state without ink inside. It is explanatory drawing which shows a mode when partly breaking a relay core and connecting the relay core of FIG. 1 and an ink tank part, It connects in order of (a)-(b). It is explanatory drawing which shows a mode that ink is filled with the batting arrangement | positioning part in the applicator of 1st Embodiment, and ink is filled in order of (a)-(c). It is explanatory drawing which shows the liquid level (water level) of the ink at the time of the ink with which the batting arrangement | positioning arrangement | positioning part decreased in the applicator of 1st Embodiment, and ink is again filled from an ink tank, (a) The state where the ink is filled in the batting arrangement portion is shown, (b) shows the state where the ink in the batting arrangement portion is reduced, and (c) shows the state where the ink is filled again in the batting arrangement portion. It is a perspective view which shows the relay core of the 2nd Embodiment of this invention. It is a perspective view which shows the relay core of the 3rd Embodiment of this invention.

  Further embodiments of the present invention will be described below. In the following description, the “front-rear” relationship will be described with the pen tip side as the front side and the ink tank side as the rear side.

  The applicator 1 according to the first embodiment of the present invention is specifically a white plate marker. As shown in FIG. 1, the main body cylinder 2, the relay core 3 (flow path forming portion), the batting 4 (application liquid) (Occlusion body), ink tank part 5 (application liquid storage part), and nib 6 (application body). And the ink tank part 5 which can store the ink 7 is distribute | arranged to the rear side of the hollow part provided in the inner side of the main body cylinder 2, The batting arrangement | positioning part 8 is formed in the front side of the hollow part. The front and rear of the hollow portion of the main body cylinder 2 are partitioned by the relay core 3.

The main body cylinder 2 is a cylinder formed of an appropriate material such as a resin such as polypropylene or a metal such as niobium. The main body cylinder 2 is formed of a front end portion 28 and a rear end portion 29. The appearance of the distal end portion 28 has a shape that tapers toward the front side. Specifically, from the rear side toward the front side, four portions of a cylindrical portion 28a having a large diameter, a cylindrical portion 28b having a small diameter, a tapered portion 28c, and a cylindrical portion 28d having the smallest diameter are continuous. doing. At this time, the cylindrical portion 28a having a large diameter and the cylindrical portion 28b having a small diameter are continuous through a step. In addition, an internal space 30 communicating in the longitudinal direction is present inside the tip portion 28, and the internal space 30 is also tapered toward the front side. A main body side spiral groove 28 e is formed at the rear end of the inner peripheral surface of the tip end portion 28.
The rear end portion 29 is a substantially bottomed cylindrical lid body provided with an opening on one side.

  The batting 4 is a known batting and is a member having continuous pores that can be impregnated with the ink 7. More specifically, it is formed of an appropriate fiber such as an acrylic fiber, and the ink 7 can be impregnated therein.

The relay core 3 is a characteristic component of the present embodiment, and will be described in detail below.
The relay core 3 is formed of an appropriate material such as a synthetic resin such as polypropylene or polyacetal, or a metal. Further, as shown in FIG. 2, the relay core 3 is formed of a protruding portion 11 and a base portion 12.

  The protruding portion 11 is formed of a substantially cylindrical protruding portion main body 32 and a rectangular flat plate-shaped pressing piece 33 (pressing portion). At this time, the protruding portion main body 32 protrudes substantially vertically from the front end surface 25 (upper end surface in FIG. 2) of the base portion 12 toward the front (upward in FIG. 2), and the center of the protruding portion main body 32 and the base portion 12. The axes are arranged to be the same. That is, the protruding portion 11 protrudes from the vicinity of the center portion of the front end face 25 of the base portion 12.

The pressing pieces 33 are provided at two locations that are shifted by approximately 180 degrees in the circumferential direction of the side surface of the protruding portion main body 32, and protrude outward from the side surface of the protruding portion main body 32. Here, the two pressing pieces 33 both project in a direction substantially perpendicular to the longitudinal direction (projecting direction) of the projecting portion main body 32. Accordingly, the two pressing pieces 33 protrude in directions away from each other. The pressing piece 33 extends along the longitudinal direction of the protruding portion main body 32. Specifically, the rear end portion of the pressing piece 33 is in contact with the front end surface 25 of the base portion 12, and the front end portion of the pressing piece 33 is the front end of the projecting portion main body 32 (the front end in the projecting direction and the upper end in FIG. 2). It is located slightly rearward (lower side in FIG. 2). That is, the two pressing pieces 33 both project substantially vertically from the front end surface 25 (upper end surface in FIG. 2) of the base portion 12 toward the front (upward in FIG. 2), and the length in the longitudinal direction is the projecting portion. It is slightly shorter than the main body 32.
The width L1 of the pressing piece 33, that is, the length L1 in the protruding direction of the pressing piece 33 is not particularly limited, but is preferably 2.0 mm to 4.5 mm, and more preferably 3.0 mm to 4. It is desirable to be 0 mm.
The thickness L2 of the pressing piece 33, that is, the length L2 in the direction substantially perpendicular to the longitudinal direction (extending direction) and the protruding direction of the pressing piece 33 is not limited, but is 1.0 mm to 3.0 mm. It is desirable that the thickness is 1.5 mm to 2.0 mm.

  By the way, the protrusion 11 is provided with a communication hole 13 at the front end portion thereof.

The communication hole 13 is provided on a circular surface 24 at the front end of the protrusion 11 in the protrusion direction (the upper surface in FIG. 2 is a surface facing the surface where the protrusion 11 is in contact with the base 12). Yes. The communication hole 13 has a circular opening shape, and the center of the opening overlaps the central axis of the protruding portion 11. The size of the diameter of the communication hole 13 is not particularly limited, but is preferably 2.0 mm to 7.0 mm, more preferably 2.0 mm to 5.0 mm, Preferably it is 2.5 mm-3.0 mm. Then, it is desirable area of the opening of the communicating hole 13 is 3.14 mm ² (square millimeter) ~38.47mm ² (mm), more preferably at 4.9 mm ² (square millimeter) ～7.07Mm ² (Square millimeters) is desirable.

As shown in FIGS. 2 and 3, the base portion 12 is formed of an outer cylinder portion 35 and an inner cylinder portion 36 located inside the outer cylinder portion 35. As shown in FIG. 3, the outer cylinder portion 35 has a substantially bottomed cylindrical shape in which an open port 39 is provided on one side. Further, the inner cylinder portion 36 has a substantially cylindrical shape. The inner cylinder part 36 has a smaller diameter than the outer cylinder part 35 and is located at the center of the outer cylinder part 35, and the central axes of the inner cylinder part 36 and the outer cylinder part 35 are the same. Each of the inner cylinder part 36 and the outer cylinder part 35 is a cylinder extending in the front-rear direction (vertical direction in FIG. 3).
As shown in FIG. 3, the front end portion of the inner cylindrical portion 36 is continuous with the inner bottom surface 40 of the outer cylindrical portion 35, and the rear end portion is the rear end of the outer cylindrical portion 35 (the lower end in FIG. 3). ) Protruding rearward (downward in FIG. 3). The length of the inner cylinder portion 36 in the front-rear direction (vertical direction in FIG. 3) is longer than that of the outer cylinder portion 35.
Further, a taper portion 36a having a narrower diameter as the outer peripheral surface of the inner tube portion 36 moves rearward is formed at the rear end portion of the inner tube portion 36.

Next, the internal structure of the relay core 3 will be described.
As shown in FIG. 3, a hollow portion 21 is provided inside the protruding portion 11 inside the relay core 3, and hollow portions 22 and 41 are provided inside the base portion 12.

  In the protruding portion 11, a hollow portion 21 is provided inside the protruding portion main body 32. The hollow portion 21 is a space having a circular cross-sectional shape. Specifically, the center portion of the protruding portion main body 32 is parallel to the longitudinal direction from the end portion of the protruding portion main body 32 toward the communication hole 13. And is continuous with the communication hole 13. The communication hole 13 and the hollow portion 21 have the same cross-sectional diameter, and the center of the opening is at the same position. That is, the projecting portion main body 32 has a substantially cylindrical shape with the center portion penetrating through the hollow portion 21 and the communication hole 13. Therefore, the hollow portion 21 is continuous with the outside through the communication hole 13.

On the inner side of the base portion 12, a hollow portion 22 provided inside the inner cylinder portion 36, and an annular hollow portion 41 provided between the outer peripheral surface of the inner cylinder portion 36 and the inner peripheral surface of the outer cylinder portion 35. Is formed.
The hollow portion 22 provided on the inner side of the inner cylinder portion 36 is a space that has a circular cross section and extends along the longitudinal direction of the inner cylinder portion 36.

  Here, the hollow portion 21 of the protruding portion main body 32 and the hollow portion 22 of the inner cylindrical portion 36 are continuous via the connecting hole 23. The connecting hole 23 is a through hole that penetrates the bottom plate portion at a position facing the opening 39 of the base portion 12 from the inside to the outside, and has a circular cross section and extends in the penetrating direction.

At this time, each of the connecting hole 23 and the hollow portion 21 of the protruding portion main body 32 is a hole having a circular cross-sectional shape, and the diameter of the cross section, the extending direction of the hole, and the central axis are the same. And the connecting hole 23 and the hollow part 21 of the protrusion main body 32 are overlapped to form one through hole. Therefore, the inner peripheral surface of the hollow portion 21 of the protrusion main body 32 and the inner peripheral surface of the connecting hole 23 are the same surface.
Furthermore, both the connecting hole 23 and the hollow portion 22 of the inner cylindrical portion 36 are holes that have a circular cross-sectional shape, and have the same cross-sectional diameter, hole extending direction, and central axis. And the connecting hole 23 and the hollow part 22 of the inner cylinder part 36 overlap, and the same through-hole is formed. Therefore, the inner peripheral surface of the hollow portion 22 of the inner cylinder portion 36 and the inner peripheral surface of the connecting hole 23 are the same surface.
That is, inside the relay core 3, an internal space 20 is formed in which the hollow portion 21 of the projecting portion main body 32, the connecting hole 23, and the hollow portion 22 of the inner cylinder portion 36 are integrally formed.
The internal space 20 is a through-hole penetrating from the opening 36 b on the rear end side of the hollow portion 22 formed in the inner cylindrical portion 36 to the opening of the communication hole 13 formed in the protruding portion main body 32. The internal space 20 has a circular cross-sectional shape, has substantially the same cross-sectional diameter, and extends back and forth along the longitudinal direction of the relay core 3. At this time, the opening 36b on the rear end side of the hollow portion 22 formed in the inner cylinder portion 36 and the opening of the communication hole 13 formed in the projecting portion main body 32 are in a position facing each other and have substantially the same shape. ing.

  As shown in FIGS. 4 and 5, the ink tank portion 5 is formed of a tank body portion 42 having a substantially cylindrical shape and a body tube engaging portion 43.

  As shown in FIG. 5, the tank main body 42 has an inner space 45 formed by hollowing out the inner portion. At this time, the rear portion 46 of the tank main body 42 has an inner diameter and an outer diameter that decrease from the center portion toward the rear. Further, the front portion 47 of the tank body 42 extends from the center portion to the front end with substantially the same inner diameter and substantially the same outer diameter.

  At this time, as shown in FIG. 4, a circular plate-like bottom plate portion 48 is provided at the front end (lower end in FIGS. 4 and 5) of the tank main body portion 42. At this time, the bottom plate portion 48 is provided so as to close the front of the tank main body portion 42, and as shown in FIG. 5, the inner side surface 48a which is the top surface of the bottom plate portion 48 and the outer surface which is the bottom surface of the bottom plate portion 48. The side surface 48 b is a surface that is substantially orthogonal to the longitudinal direction of the tank body 42.

  As shown in FIGS. 4 and 5, an ink supply hole 49 that communicates the outside with the internal space 45 of the tank main body 42 is formed in the center portion of the bottom plate portion 48. The ink supply hole 49 is a through-hole penetrating from the outer surface 48b to the inner surface 48a of the bottom plate portion 48, and has a circular cross-sectional shape and extends in the penetrating direction. And the shape of the opening provided in the outer surface 48b and the inner surface 48a is also circular. Here, the diameter of the opening 49a formed in the outer surface 48b of the bottom plate portion 48 is not particularly limited, but is preferably 2.0 mm to 7.0 mm, and more preferably 2.5 mm to 3.0 mm. It is desirable that

  Further, on the outer surface 48 b of the bottom plate portion 48, a relay core engaging portion 50 is provided so as to surround the opening of the ink supply hole 49 formed on the outer surface 48 b of the bottom plate portion 48. The relay core engaging portion 50 is an annular standing wall that protrudes substantially vertically downward from the outer surface 48 b of the bottom plate portion 48. The relay core engaging portion 50 is provided at a position slightly away from the edge portion of the opening of the ink supply hole 49.

As shown in FIG. 5, the main body cylinder engaging portion 43 includes a cylindrical portion 43a positioned so as to surround the vicinity of the central portion in the longitudinal direction of the tank main body portion 42, and the front end of the inner peripheral surface of the cylindrical portion 43a. This is formed by a connecting portion 43 b that connects the portion (the lower end portion in FIG. 5) and the outer peripheral surface of the tank main body portion 42.
Here, the inner peripheral surface of the cylindrical portion 43 a is located slightly away from the outer peripheral surface of the tank main body 42. A connecting portion 43 b is located between the front end portion of the inner peripheral surface of the cylindrical portion 43 a and the outer peripheral surface of the tank main body portion 42. At this time, the connecting portion 43b is integrated with each of the front end portion of the inner peripheral surface of the cylindrical portion 43a and a part of the outer peripheral surface of the tank main body portion 42, and is continuous with these without a gap. Accordingly, an annular groove 51 is formed between the inner peripheral surface of the cylindrical portion 43a and the outer peripheral surface of the tank main body 42, with the front end closed and the rear end open.
An ink tank side spiral groove 43c is formed on the outer peripheral surface of the cylindrical portion 43a.

  The nib 6 is the same as a known nib, and is formed of a material obtained by joining appropriate fiber bundles such as a fiber bundle heat-bonded processed body, a fiber bundle resin processed body, a felt resin processed body, and the like. Thus, the ink 7 is sucked from the filling 4.

Next, the assembly structure of the applicator 1 of this embodiment will be described with reference to FIG.
A pen tip 6 is attached to the front end portion of the distal end portion 28 of the main body cylinder 2. In the inner space 30 of the tip portion 28, the batting 4 is installed on the rear side of the pen tip 6. At this time, the batting 4 is installed in the main body cylinder 2 in a state of being packed in a cylinder (not shown) formed of an appropriate material such as PP (polypropylene). Further, at this time, the front end of the batting 4 and the rear end of the pen tip 6 are in contact with each other.

  The relay core 3 is inserted into the internal space 30 of the distal end portion 28. At this time, the relay core 3 is inserted such that the protruding portion 11 is the front and the base portion 12 is the rear. Then, substantially all portions of the protruding portion main body 32 and the two pressing pieces 33 of the protruding portion 11 are inserted into the batting 4. That is, the part from the front end in the front-rear direction to the vicinity of the rear end of the protruding portion main body 32 and the two pressing pieces 33 is inserted into the batting 4. More specifically, the relay core 3 is inserted from the rear side of the batting 4, and the protruding portion main body 32 and the two pressing pieces 33 of the protruding portion 11 move the batting 4 from the rear to the front (from above in FIG. 13). Pressing down).

  That is, in the internal space 30 of the front end portion 28, a portion from the front end surface 25 of the base portion 12 of the relay core 3 to a portion near the front end of the internal space 30 is the batting arrangement portion 8.

  At this time, the opening of the communication hole 13 of the protrusion 11 is covered with the filling 4 over substantially the entire surface. Then, as shown in FIG. 6, a part of the batting 4 enters the internal space 20 (hollow portion 21) of the protruding portion 11 from the communication hole 13. That is, a part of the batting 4 is disposed in the vicinity of the front end (in the vicinity of the lower end in FIG. 6) of the internal space 20 of the protruding portion 11. In other words, a part of the batting 4 is arranged at a portion located rearward (upward in FIG. 6) from the opening surface of the communication hole 13, and the opening of the communication hole 13 is blocked by the batting 4.

  Here, since the outer diameter of the base portion 12 of the relay core 3 (the outer diameter of the outer cylinder portion 35) and the inner diameter of the distal end portion 28 of the main body cylinder 2 are substantially the same, the relay core is connected to the distal end portion 28 of the main body cylinder 2. 3 is fitted and fixed.

An ink tank portion 5 in which the internal space 45 is filled with the ink 7 is attached to the front end portion 28 of the main body cylinder 2 from the rear side of the relay core 3. At this time, the ink tank side spiral groove 43c formed on the outer periphery of the ink tank portion 5 and the main body side spiral groove 28e formed on the inner peripheral surface of the tip portion 28 of the main body cylinder 2 are screwed together, and the ink A tank portion 5 is fixed to the main body cylinder 2.
At this time, as shown in FIG. 7, the rear end portion of the inner cylindrical portion 36 is inserted inside the relay core engaging portion 50 that is an annular standing wall. At this time, since the outer diameter of the inner cylinder part 36 and the inner diameter of the relay core engaging part 50 are substantially the same, the rear end part of the inner cylinder part 36 is fitted and fixed to the relay core engaging part 50. As shown in FIG. 1, the opening 49 a located outside the ink supply hole 49 and the opening 36 b formed in the inner cylinder portion 36 are in contact with each other. As a result, the ink supply hole 49 and the internal space 20 are connected, and these are as if they were integrated through holes.

  Further, a rear end portion 29 of the main body cylinder 2 is attached from the rear of the ink tank portion 5. Specifically, the front end portion of the rear end portion 29 of the main body cylinder 2 is inserted into the annular groove 51 formed in the ink tank portion 5.

  Above, description about the assembly structure of the applicator 1 of this embodiment is complete | finished.

Hereinafter, the operation of the applicator 1 of the present embodiment will be described with reference to FIGS.
When the pen tip 6 is directed downward for writing, the ink 7 moves from the internal space 45 of the ink tank portion 5 to the batting arrangement portion 8 side by gravity as shown in FIG. At this time, the ink 7 passes through the ink supply hole 49 and moves to a lower portion of the internal space 20 of the relay core 3. The ink 7 that has moved to the vicinity of the lower end of the protruding portion 11 is drawn downward by its own gravity and the capillary force of the batting 4. As a result, the ink 7 is discharged from the communication hole 13 and supplied to the batting arrangement portion 8. That is, the internal space 20 of the relay core 3 becomes an ink flow path when the ink 7 is supplied.

Here, in this embodiment, the batting 4 is pressed from above by the pressing piece 33. As a result, a medium density portion 53 having a relatively low porosity is formed in the lower portion of the batting 4. That is, by pressing the batting 4 from above with the pressing piece 33 or the like, a part of the pressed batting 4 is pushed down and accumulated. As a result, a low density portion 54 having a relatively high porosity and a low fiber density is formed in the upper portion, and a medium density portion 53 having a relatively low porosity and a high fiber density is formed in the lower portion of the batting 4. The The nib 6 is a high density portion having a fiber density higher than that of the medium density portion 53 of the batting 4.
That is, in this embodiment, the part from which the fiber density from which the upper part and lower part of the batting 4 continue is different, and the fiber density becomes high toward the downward direction. And the low density part 54, the medium density part 53, and the high density part (pen tip 6) are continuing toward the front end of the nib 6 from the rear end of the batting 4. In the present embodiment, as shown in FIG. 8A, the middle density portion 53 extends from the front end of the batting 4 to the vicinity of the lower end of the pressing piece, and the rear portion from the vicinity of the lower end of the pressing piece 33. A low density portion 54 is formed.
As a result, the ink 7 can be stably supplied to the nib 6. For example, even if the ink 7 does not reach the opening of the communication hole 13 only by its own gravity, the ink 7 can be drawn from the relay core 3 to the batting 4 and moved from the batting 4 to the pen tip 6. it can.

At this time, outside air (a minute amount of air) is introduced into the internal space 45 of the ink tank unit 5 from the communication hole 13. Then, the ink 7 and the outside air are exchanged in the internal space 45, and the ink 7 is vigorously supplied from the communication hole 13 to the batting arrangement portion 8.
That is, the applicator 1 of the present embodiment introduces outside air from the communication hole 13 and discharges the ink 7 from the communication hole 13. That is, the relay core 3 of the present embodiment has only one protruding portion 11 that is a communication tube, and only one protruding portion 11 serves as both an outside air introduction tube and an ink discharge tube. . And in this protrusion part 11, it has the structure by which introduction | transduction of external air and discharge | release of ink are implemented simultaneously. In addition, the flow rate of the ink 7 can be made a more preferable speed by making the diameter and area size of the communication hole 13 as described above desirable. Thereby, supply of the ink 7 to the batting arrangement | positioning part 8 can be stabilized more.

  Here, in this embodiment, the relay core 3 is configured to include the pressing piece 33, and as described above, the ink 7 can be strongly drawn from the relay core 3 to the batting 4. . For this reason, in the present embodiment, the ink 7 can be stably supplied even when the protrusion 11 has only one structure. That is, in this embodiment, the ink 7 can be sufficiently supplied by only one protrusion 11 without providing two or more protrusions or a protrusion having a large diameter. Thereby, in this embodiment, it is not necessary to provide two or more projecting portions or to form a projecting portion having a large diameter, and there is an advantage that the degree of freedom in designing the relay core 3 is high.

  Then, the ink 7 is continuously supplied from the state shown in FIG. 8A to the batting arrangement portion 8, so that the batting 4 is impregnated with the ink 7 as shown in FIG. 8B. At this time, since the communication hole 13 and the batting 4 are in contact with each other, the ink 7 that has reached the vicinity of the communication hole 13 is pulled by the capillary force of the batting 4. Therefore, the flow of the ink 7 does not stagnate in the vicinity of the communication hole 13 due to the surface tension of the ink 7 or the like.

  As the ink 7 is impregnated into the filling 4, the water level of the ink 7 in the filling arrangement portion 8 rises (the boundary line of the water level approaches the ink tank 5 side). As shown in FIG. 8C, the water level of the ink 7 in the batting arrangement portion 8 that rises eventually reaches the height (position) of the communication hole 13.

  When the water level of the ink 7 in the batting arrangement portion 8 rises as described above, the ink 7 is filled up to the position of the communication hole 13 as shown in FIG. As a result, the ink 7 impregnated with the communication holes 13 is liquid-sealed and substantially blocked. And it becomes impossible to introduce external air into the internal space 45 of the ink tank part 5, and supply of the ink 7 to the batting arrangement | positioning part 8 stops. At this time, the front side (lower side in FIGS. 8 and 9) of the filling 4 is sufficiently impregnated with the ink 7, and the rear side (upper side in FIGS. 8 and 9) is not impregnated with the ink 7. Normally, the back side of the batting 4 is not impregnated with the ink 7. However, this is not the case when the ambient temperature rises or the posture of the applicator 1 is inclined.

  Then, if writing is continued with the ink 7 impregnated on the front side of the filling 4 as shown in FIG. 9A, the ink 7 impregnated in the filling 4 will eventually decrease, and the liquid seal state of the communication hole 13 will be released. Is done. Then, as shown in FIG. 9B, since the outside air is taken into the ink tank 3 again, the supply of the ink 7 to the filling arrangement portion 8 is started. Then, as shown in FIG. 9C, the supply of the ink 7 to the batting arrangement portion 8 is continued until the ink 7 impregnated with the communication hole 13 is again in a liquid seal state. Thus, whenever the ink 7 decreases by writing, the ink 7 is supplied to the batting arrangement part 8 and the batting 4. The ink 7 supplied to the batting 4 is less likely to flow from the medium density portion 53 to the low density portion 54. That is, since the ink 7 supplied to the batting 4 easily flows toward the pen tip 6, the ink 7 can be supplied to the pen tip 6 stably.

In the above-described embodiment, an example in which the applicator 1 is a marker is shown, but the present invention is not limited to this. The present invention may be an applicator such as a fountain pen, a ballpoint pen, or a correction liquid. Therefore, the raw material and shape of the main body cylinder 2 can be changed as appropriate.
Also, the nib 6 includes a fiber bundle resin processed body, a fiber bundle heat-bonded processed body, a felt processed body, a pipe-shaped pen body, a fountain pen type plate pen body having a slit at the tip, a brush pen body, and a synthetic resin. The porous foam, the ball-point pen tip, the synthetic resin extrusion molded body having an ink guide path in the axial direction, and the like.
Furthermore, the batting 4 may be a member having continuous pores that can be impregnated with the ink 7 as described above, and the shape thereof is not limited to a substantially cylindrical shape or a substantially rectangular parallelepiped shape. The raw material and shape can be changed as appropriate.

  Moreover, although the above-mentioned 1st Embodiment demonstrated the form in which the protrusion part main body 32 of the relay core 3 was contacting the batting 4, the relay core 3 and the batting 4 do not necessarily need to contact. However, if the relay core 3 (the communication hole thereof) and the batting 4 are not in contact, the surface tension acting on the ink 7 exceeds the gravity when the inner diameter of the relay core 3 is small, and the ink 7 enters the hollow portion 21. In order to stay, there is a possibility that the outflow amount of the ink 7 per hour may be reduced when the ink 7 is supplied to the batting arrangement portion 8 of the ink 7. On the other hand, when the relay core 3 and the batting 4 are in contact, the ink 7 is drawn by the capillary force of the batting 4 and the ink 7 flows smoothly. Therefore, even if the inner diameter of the relay core 3 is designed to be small, the ink 7 The outflow per hour is stable. Therefore, it is preferable that the relay core 3 and the batting 4 are in contact as described above.

  Moreover, in the above-described first embodiment, the entire area of the opening of the communication hole 13 is disposed so as to cover the batting 4, but the present invention is not necessarily limited thereto. The opening of the communication hole 13 may not be covered with the batting 4, and only a part of the opening of the communication hole 13 may be covered with the batting 4. However, it is desirable to arrange so that the entire area of the opening of the communication hole 13 is covered with the batting 4 because the ink 7 located in the vicinity of the front end of the protrusion 11 can be pulled more reliably toward the batting 4 side.

In the first embodiment described above, the pressing piece 33 has a flat plate shape and is configured to come into contact with the side surface of the projecting portion main body 32 and the front end surface 25 of the base portion 12. It is not limited. For example, as in the second embodiment shown in FIG. 10, a relay core 60 including a pressing piece 61 that protrudes forward from the base portion 12 without contacting the protruding portion main body 32 may be employed.
Further, as in the third embodiment shown in FIG. 11, a relay core 70 in which the pressing piece 71 is bent and extends from the protruding portion main body 32 without contacting the base portion 12 may be adopted.
Further, the shape of the pressing piece of the present invention is not particularly limited, and may be a round bar-like pressing piece as shown in the second embodiment (see FIG. 10), which is shown in the third embodiment. Such a pressing piece having a bowl shape (L-shaped plate shape) may be used (see FIG. 11). Therefore, the pressing piece may be a pressing piece that extends in a polygonal shape such as a quadrangular cross section, or a pressing piece that extends in a circular cross section. Further, it may be a pressing piece partially bent and extending.
That is, the pressing piece of the present invention only needs to make at least a part or all of the batting located near the ink discharge port (communication hole 13) of the relay core high in fiber density by pressing the batting.

  Although the two pressing pieces of each embodiment described above are provided on the relay core, the number of pressing pieces may be one or three or more.

  In each of the above-described embodiments, contact is made so that the angle formed by the protruding portion of the relay core and the upper end surface of the batting is about 90 degrees, but the arrangement angle of the relay core is not limited to this. The angle formed by the protruding portion of the relay core and the upper end surface of the batting is not particularly limited, but it is preferable that the protruding portion of the relay core and the upper end surface of the batting are brought into contact with each other so as to be 70 degrees or more and 90 degrees or less. .

  The ink used in each of the above embodiments is not particularly limited, but the viscosity is greater than 6.7 mPa · s, the contact angle when contacting the solid surface is less than 53.8 degrees, and the surface An ink having a characteristic that the tension is smaller than 33.5 mN / m can be preferably used.

1 Applicator 3, 60, 70 Relay core (flow path forming part)
4 Filling (Coating solution occlusion body)
5 Ink tank part (coating liquid storage part)
6 Pen tip (applying body)
7 Ink (application liquid)
DESCRIPTION OF SYMBOLS 11 Protrusion part 12 Base part 13 Communication hole 21 Hollow part 20 Internal space 33, 61, 71 Pressing piece (pressing part)

Claims (6)

A coating liquid container that can flow the filled coating liquid and a coating body for applying the coating liquid, and a coating liquid storage body that impregnates the coating liquid between the coating liquid container and the coating body are provided. An applicator provided with a flow path forming part having a flow path through which the coating liquid can flow between the coating liquid storage part and the coating liquid storage body,
The flow path forming part has at least one projecting part and a pressing part,
The protruding portion protrudes toward the application body side, a hollow portion is formed inside, and a communication hole that connects the hollow portion and the outside is provided,
An applicator characterized in that at least a part of the pressing portion is in contact with the coating solution storage body from above.   The applicator according to claim 1, wherein a lower end of the pressing portion is positioned above the communication hole.   The pressing portion is a plate-like protrusion that protrudes substantially perpendicularly from the side surface of the protruding portion, and extends from the proximal end portion in the protruding direction of the protruding portion to the vicinity of the distal end portion. The applicator according to claim 1 or 2.   The applicator according to any one of claims 1 to 3, wherein a part of the coating liquid occlusion body is disposed inside the flow path forming portion.   The applicator according to any one of claims 1 to 4, wherein the flow path forming portion and the coating liquid storage portion can be detachably attached. The coating liquid storage part is provided with a storage part side through hole that communicates the outside and the internal space below,
The flow path forming part is formed from a base part and a projecting part, and a cylindrical part is formed in the base part, and the cylindrical part communicates with a hollow part of the projecting part,
The applicator according to claim 5, wherein when the flow path forming portion and the coating liquid storage portion are attached, the storage portion side through hole and the cylindrical portion communicate with each other.

Images