JP5923637B2 - Writing instrument refill and writing instrument - Google Patents

Description

  The present invention relates to a writing instrument refill and a writing instrument.

  Various types of writing instruments have been provided so far, but writing instruments such as brush pens, ballpoint pens, and fountain pens have a common configuration, and an ink storage section that stores liquid ink, and liquid ink is supplied from the ink storage section. And a pen tip portion having a writing portion (pen point) at the tip.

  In this type of writing instrument, liquid ink is stored as it is in a part or all of the cylindrical barrel shaft constituting the exterior, and the pen tip portion is connected to one end of the barrel shaft (the exterior of the writing instrument is A refill for a writing instrument having a bar-like appearance provided with an ink storage portion and a pen tip portion is inserted into a cylindrical barrel shaft constituting an exterior). Some of the refill pen tips are fixed to one end of the barrel shaft with the pen tip exposed to the outside. However, since both are supplied with liquid ink to the writing unit, ink leakage from the writing unit and liquid In this configuration, excessive supply of liquid ink, which causes ink dripping, can be suppressed.

  Specifically, in this type of writing instrument, ink storage means such as cotton or felt is filled in the ink storage part, and liquid ink impregnated in the ink storage means is supplied to the writing part (hereinafter referred to as the following). This type is called batting type), a collector that can hold liquid ink from the ink reservoir by capillary action is interposed between the ink reservoir and the pen tip, and a relay core that penetrates the collector The ink guiding means supplies liquid ink in the ink storage part to the writing part (hereinafter, this type is referred to as a direct liquid type) (see, for example, Patent Documents 1 and 2).

  The above-mentioned batting type writing instrument retains liquid ink with the liquid absorbing property (water absorbing power) of the ink occluding means so that the liquid ink is not excessively supplied to the writing portion.

  On the other hand, in the direct liquid type writing instrument, liquid ink is prevented from being excessively supplied to the writing unit by adjusting the internal pressure of the ink storing unit by taking in and out the liquid ink with respect to the ink storing unit by the collector. ing. That is, the direct liquid type writing instrument holds the liquid ink pushed out from the ink storage part with a capillary force as the internal pressure of the ink storage part increases, while holding the collector when the internal pressure of the ink storage part decreases. Liquid ink to be returned to the ink reservoir, and by removing the liquid ink from the ink reservoir according to the pressure balance in the ink reservoir, the liquid ink is not excessively supplied to the writing unit. It has become.

  Thereby, in any type of this type of writing instrument, ink leakage from the writing unit and ink dripping are suppressed.

JP 2002-234291 A Utility Model Registration No. 2517432

  By the way, the padding type writing instrument has liquid ink impregnated in the ink storage means filled in the entire ink storage part, so that it is liquid as compared with a direct liquid type writing instrument in which the liquid ink is stored as it is in the ink storage part. There is a problem that the amount of ink stored is small.

  Further, in the case of a batting type writing instrument, the liquid absorbing property (ink holding power) of the ink occlusion means becomes resistance, and the liquid ink may not be supplied to the writing part with an optimal liquid amount for writing. In particular, when the remaining amount of liquid ink in the ink reservoir is reduced, the batting type writing instrument tries to occlude a small amount of liquid ink remaining in the entire ink occlusion means. The occurrence of blurring at the time of writing becomes remarkable.

  On the other hand, since the liquid ink in the ink storage unit is directly supplied to the writing unit via the ink guiding means, the liquid ink in the writing unit becomes abundant and blurring occurs during writing. There is nothing.

  However, since the liquid ink is directly supplied from the ink storage unit to the writing unit, the amount of liquid ink supplied to the writing unit tends to increase. Further, the direct liquid type writing instrument cannot hold more liquid ink in the collector when the amount of liquid ink held in the collector reaches the maximum amount of liquid ink in the collector. The internal pressure cannot be balanced, and liquid ink may be excessively supplied to the writing portion.

  Accordingly, in view of such circumstances, the present invention reliably prevents liquid leakage of the ink from the writing unit and dripping of the liquid ink, while writing the liquid ink having the optimum liquid amount for writing at the tip of the pen tip. It is an object of the present invention to provide a refill for a writing instrument and a writing instrument that can be supplied to the instrument.

The refill for a writing instrument according to the present invention includes an ink storage part that stores liquid ink, and a pen point part that has a writing part to which liquid ink is supplied from the ink storage part at the tip, and the pen point part is exposed. A refill for a writing instrument that is mounted on a barrel shaft that constitutes the exterior of the writing instrument in a state, wherein the ink storage means is connected to the ink storage section and stores liquid ink from the ink storage section, and the ink storage means and pen A collector interposed between the front portion and holding the liquid ink from the ink storage means by capillary action to balance the storage of liquid ink in the ink storage means, and a predetermined range on one end side is filled with the ink storage means while being a cylindrical adjustment means holding body collector is fitted to the other side of the ink occlusion means, disposed through the collector, a liquid ink ink occlusion means for occluding And a ink induction means for inducing the writing portion of the emission tip portion, the ink reservoir has one end formed in a cylindrical shape and the other end is open as well as closed, one end portion the ink reservoir of the adjusting means retaining member By connecting to the other end of the unit, a space for storing the liquid ink is defined in a liquid-tight manner.

  According to the refill for a writing instrument having the above-described configuration, only the liquid ink stored by the ink storage unit is supplied to the writing unit via the ink guiding unit, so that the liquid ink stored in the ink storage unit is directly supplied to the writing unit. Unlike the liquid writing instrument, liquid ink is not excessively supplied to the writing unit. The refill for a writing instrument having the above configuration is configured such that the ink storage means is connected to the ink storage unit and stores the liquid ink from the ink storage unit, so that the liquid ink is present in the ink storage unit. Thus, the ink storage means stores the maximum amount of liquid ink. That is, the refill for a writing instrument having the above configuration is in a state where the ink occlusion means is saturated with the liquid ink while the liquid ink is present in the ink reservoir. Therefore, the refill for a writing instrument having the above-described configuration does not have a shortage of liquid ink supplied to the writing part as in the case of a batting type writing instrument, and the liquid ink in the writing part can be enriched and good writing is possible. It becomes.

As described above, if liquid ink is present in the ink reservoir while the ink storage means is saturated with liquid ink, the liquid ink may ooze out from the ink storage means toward the pen tip side. The refill for a writing instrument of the present invention is configured such that the collector holds the liquid ink from the ink storage means by capillary action so that the liquid ink storage balance in the ink storage means is achieved. ) Is not supplied more than necessary, and liquid ink leakage from the writing part and dripping of the liquid ink are surely prevented.

  In addition, the writing instrument refill configured as described above is configured so that the collector holds the liquid ink by capillary action, so that the liquid ink of the ink storage means is consumed by writing, and there is a margin in the storage capacity of the ink storage means. When this occurs, the liquid ink held by the collector returns to the ink storage means and is supplied to the writing unit via the ink guiding means.

  Therefore, the refill for a writing instrument of the present invention can supply liquid ink having a liquid amount optimum for writing to the writing part while reliably preventing ink leakage from the writing part and dripping of the liquid ink.

  As one aspect of the refill for a writing instrument of the present invention, it is preferable that the ink storage means is configured such that the maximum storage amount of the liquid ink is set smaller than the maximum storage amount of the liquid ink in the ink storage unit. In this way, while the liquid ink is present in the ink storage portion regardless of the amount of remaining liquid ink, the ink storage means absorbs the liquid ink abundantly, which is optimal for writing through the ink guiding means. Liquid ink of liquid quantity can be supplied to the writing unit

  In this case, it is preferable that the maximum storage amount of the liquid ink in the ink storage unit is set to 0.03 to 0.15 times the maximum storage amount of the liquid ink in the ink storage unit. In this way, the storage amount of the liquid ink stored in the ink storage unit is significantly larger than the storage amount of the liquid ink stored by the ink storage means, so that the liquid ink in the ink storage unit is used up from the start of use. The liquid ink in the ink occlusion means can be enriched until it is used up or just before it is used up, and good writing can be performed until the liquid ink runs out or almost disappears.

  As another aspect of the refill for a writing instrument of the present invention, the ink occlusion means is preferably composed of a fiber material having liquid absorbency.

A writing instrument according to the present invention is a writing instrument that includes an ink storage part that stores liquid ink and a pen tip part that has a writing part to which liquid ink is supplied from the ink storage part at the tip. Ink storage means connected to store liquid ink from the ink storage section, and interposed between the ink storage section and the pen tip section, hold the liquid ink from the ink storage section by capillary action, and A collector that balances occlusion of liquid ink in the ink occlusion means, and a cylindrical adjustment means holder in which the ink occlusion means is filled in a predetermined range on one end side, and the collector is fitted on the other end side of the ink occlusion means If, formed through the collector, and an ink induction means for the ink absorbing means to induce liquid ink occluding the writing part of the pen tip portion, the ink reservoir has one end is closed Both the other end is formed having a cylinder with one end portion of the adjusting means retaining body that is connected to the other end portion of the ink storage portion, and defines a space for accommodating the liquid ink in a liquid-tight manner It is characterized by that.

  According to the writing instrument having the above-described configuration, only the liquid ink stored by the ink storage unit is supplied to the writing unit through the ink guiding unit, so that the liquid ink stored in the ink storage unit is directly supplied to the writing unit. Unlike the writing instrument, liquid ink is not excessively supplied to the writing portion. The writing instrument configured as described above is configured such that the ink storage means is connected to the ink storage section and stores the liquid ink from the ink storage section. Therefore, while the liquid ink exists in the ink storage section, the ink storage means The occlusion means occludes the maximum occlusion amount of liquid ink. That is, in the writing instrument having the above-described configuration, the ink occlusion means is saturated with the liquid ink while the liquid ink is present in the ink reservoir. Therefore, the writing instrument having the above-described configuration does not have a shortage of liquid ink supplied to the writing unit unlike the batting type writing instrument, and the liquid ink in the writing unit can be enriched, and good writing can be performed. .

As described above, if liquid ink is present in the ink reservoir while the ink storage means is saturated with liquid ink, the liquid ink may ooze out from the ink storage means toward the pen tip side. The writing instrument of the present invention is configured so that the collector holds the liquid ink from the ink storage means by capillary action so as to balance the storage of the liquid ink in the ink storage means. Liquid ink more than necessary is not supplied, and liquid ink leakage from the writing unit and liquid ink dripping are reliably prevented.

  In addition, since the writing instrument having the above configuration is configured so that the collector holds liquid ink by capillary action, the liquid ink in the ink storage means is consumed by writing, and there is a margin in the storage capacity of the ink storage means. In addition, the liquid ink held by the collector returns to the ink storage means and is supplied to the writing unit via the ink guiding means.

  Therefore, the writing instrument of the present invention can supply liquid ink of a liquid amount optimal for writing to the writing part while reliably preventing ink leakage from the writing part and dripping of the liquid ink.

  As one aspect of the writing instrument of the present invention, it is preferable that the ink storage means is configured such that the maximum storage amount of liquid ink is set smaller than the maximum storage amount of liquid ink in the ink storage unit. In this way, while the liquid ink is present in the ink storage portion regardless of the amount of remaining liquid ink, the ink storage means absorbs the liquid ink abundantly, which is optimal for writing through the ink guiding means. A liquid amount of liquid ink can be supplied to the writing unit.

  In this case, it is preferable that the maximum storage amount of the liquid ink in the ink storage unit is set to 0.03 to 0.15 times the maximum storage amount of the liquid ink in the ink storage unit. In this way, the storage amount of the liquid ink stored in the ink storage unit is significantly larger than the storage amount of the liquid ink stored by the ink storage means, so that the liquid ink in the ink storage unit is used up from the start of use. The liquid ink in the ink occlusion means can be enriched until it is used up or just before it is used up, and good writing can be performed until the liquid ink runs out or almost disappears.

  As another aspect of the writing instrument of the present invention, the ink occluding means is preferably composed of a fiber material having liquid absorbency.

  As described above, according to the refill for a writing instrument according to the present invention, it is possible to reliably prevent the ink leakage from the writing part and the dripping of the liquid ink, while supplying the liquid ink having the optimum liquid amount for writing to the tip of the pen tip part. The excellent effect of being able to be supplied to the writing part in can be obtained.

  Also, in the writing instrument according to the present invention, liquid ink having a liquid amount optimum for writing is supplied to the writing part at the tip of the pen tip part while reliably preventing ink leakage from the writing part and dripping of the liquid ink. An excellent effect that it can be performed can be achieved.

1 shows an overall view of a writing instrument according to an embodiment of the present invention. The whole sectional drawing of the writing instrument which concerns on the embodiment is shown. It is a partial expanded sectional view of the writing instrument which concerns on the same embodiment, Comprising: (a) shows the partial expanded sectional view containing a pen point part, an ink occlusion means, and a collector, (b) is I- of (a). An I section is shown, (c) shows the II-II section of (a). The whole sectional view of the writing instrument concerning other embodiments of the present invention is shown.

  Hereinafter, a writing instrument according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  In such a writing instrument, a pen point portion 31 is fixed to one end side of the body shaft 2 constituting the exterior, as shown in FIG.

  More specifically, as shown in FIG. 2, the writing instrument 1 according to this embodiment includes a cylindrical barrel shaft 2, and a writing instrument refill (hereinafter simply referred to as “refill”) 3 attached to the barrel shaft 2. It has.

  The body shaft 2 may be configured by a single cylindrical body, but in the present embodiment, one end side is configured to be separable. Specifically, the body shaft 2 includes a cylindrical body shaft body 20 having one end opened, and a front tube body 21 that can be attached to and detached from one end portion of the body shaft body 20.

  The trunk shaft body 20 according to the present embodiment is formed of a resin molded product. The barrel shaft main body 20 is closed at the other end, and an internal thread 200 is formed on the inner peripheral surface of the one end.

  The said front cylinder 21 is formed in the cylinder shape, and both ends are opening. And the outer diameter is set so that the front cylinder 21 may taper from the one end side toward the other end side in the external appearance. The front cylinder 21 has a male screw 210 formed on the outer periphery of one end thereof, and is concentric with the barrel shaft body 20 by screwing the male screw 210 with the female screw 200 of the barrel shaft body 20. It is designed to be connected.

  The front cylinder 21 according to the present embodiment has an inner hole formed in a stepped shape, and is formed such that a hole on one end side has a larger diameter than a hole on the other end side. In the present embodiment, in the tip cylinder 21, an adjusting means holding body 35 described later is press-fitted into the large diameter hole H1, and the pen tip portion 31 (pen tip holding body 311) is inserted into the small diameter hole H2. Thereby, the front cylinder 21 according to the present embodiment is in a state of being fixed to the adjusting means holding body 35, and also has a configuration of the refill 3 while being a configuration of the body portion 2.

  The refill 3 is connected to an ink reservoir 30 that stores liquid ink, a pen tip 31 that has a writing portion 310 to which liquid ink from the ink reservoir 30 is supplied, and an ink reservoir 30. An ink storage means 32 for storing the liquid ink from the ink storage section 30, and interposed between the ink storage means 32 and the pen tip section 31, hold the liquid ink from the ink storage means 32 by capillary action. A collector 33 that balances the storage of liquid ink in the ink storage means 32, and an ink guide means 34 that penetrates the collector 33 and guides the liquid ink stored in the ink storage means 32 to the writing section 310 of the pen tip 31. And.

  The ink reservoir 30 defines a space for storing liquid ink in a liquid-tight manner, and is filled with fluid low-viscosity liquid ink. If it demonstrates concretely, the ink storage part 30 which concerns on this embodiment is formed in a cylinder shape, and one edge part is obstruct | occluded. The ink storage unit 30 according to the present embodiment is liquid-tight by connecting the adjusting unit holding body 35 that holds the ink storage unit 32 to the other end, and is filled with liquid ink. It can be maintained with. In addition, the liquid ink employ | adopted for the writing instrument 1 which concerns on this embodiment should just be fluid, The said writing instrument 1 is a brush pen as well as various inks, such as a water-based ink containing a pigment, and a fluorescent ink. In this case, the ink is used as the liquid ink.

  As shown in FIG. 3A, the pen tip portion 31 includes a writing unit 310 configured to hold the supplied liquid ink, and a pen tip holding body 311 that holds the writing unit 310. .

  The writing unit 310 includes a felt tip or a bundle of hairs that can hold liquid ink with a capillary force or liquid absorption force, or a unit that attaches liquid ink to the outer surface. In the present embodiment, the writing unit 310 is composed of a hair bundle in which a plurality of hairs B are bundled. The plurality of hairs B are resin fibers, and one end of each is integrally welded to constitute a hair bundle. And the writing part 310 welds the several hair B ..., and the flange F extended to the radial direction outward of the hair | bristle bundle is formed in the one end part.

  The pen point holding body 311 is formed in a cylindrical shape, and the writing unit 310 is inserted through the tip side so as to extend to the outside. The pen tip holding body 311 is press-fitted into one end of the adjusting means holding body 35 and is fixed to the adjusting means holding body 35. In the writing instrument 1 according to the present embodiment, as described above, since the tip cylinder 21 of the barrel 2 has one configuration of the refill 3, the hook projecting radially outward from the tip of the pen tip holder 311. A pawl 312 is formed, and the front end side of the front cylinder 21 is sandwiched and fixed between the pawl 312 and the front end of the adjusting means holding body 35.

  In the refill 3 according to this embodiment, the ink storage means 32 and the collector 33 are held by a common adjustment means holding body 35. The adjusting means holding body 35 is formed in a cylindrical shape having both ends open, and one end portion is press-fitted concentrically with respect to one end opening of the ink storage portion 30 (cylindrical body). Is liquid-tightly connected.

  The ink storage means 32 is made of a fiber material having liquid absorbency such as cotton or felt, and is filled in a predetermined range on one end side of the adjusting means holding body 35.

  In the ink storage unit 32 according to the present embodiment, the maximum storage amount of liquid ink is set to be smaller than the maximum storage amount of liquid ink in the ink storage unit 30. In the present embodiment, the maximum storage amount of liquid ink in the ink storage means 32 is set to 0.03 to 0.15 times the maximum storage amount of liquid ink in the ink storage unit 30.

  And the said collector 33 is comprised similarly to what is called a wing-shaped adjustment body conventionally employ | adopted as direct liquid type writing instruments, such as a fountain pen. Specifically, the collector 33 is arranged with a main shaft portion 331 having a through hole H for penetrating the ink guiding means 34 on the center line, and an interval in the axial direction of the main shaft portion 331. A plurality of partition blades 332... Extending from the outer surface of the main shaft portion 331 are provided. The main shaft portion 331 is formed with flange portions 333 extending radially outward at both ends, and the plurality of partition blades 332 are extended on the outer surface between the flange portions 333.

  The plurality of partition blades 332... Extend from substantially the entire circumference of the main shaft portion 331 to form an annular shape. The intervals between the plurality of partition blades 332 are set so that the liquid ink flows between the adjacent partition blades 332 by a capillary force, and generally, toward the other end side in the axial direction of the main shaft portion 331. It is arranged to be wide.

  Each of the flange 333 and the plurality of partition blades 332... Has a slit S extending in the extending direction from the main shaft portion 331 as shown in FIGS. It is formed so as to form a line in the axial direction of 331. Note that the writing instrument 1 (collector 33) according to the present embodiment is formed such that the slit S enters the main shaft portion 331 beyond the partition blade 332. Each of the plurality of partition blades 332 is provided with a notch C for air exchange at a position shifted in the circumferential direction of the partition blade 332 with respect to the slit S, as shown in FIG. Yes. The cutout portion C is formed by cutting the partition blade 332 from the distal end in the extending direction toward the base end (main shaft portion 331 side), and the opening area viewed from the axial direction of the main shaft portion 331 is the slit. It is set wider than S.

  As shown in FIG. 3A, the collector 33 having the above-described configuration is adjusted so that one of the flanges 333 faces the ink storage means 32 and is positioned on the other end side with respect to the ink storage means 32. It is inserted in the holding body 35. That is, the collector 33 is fitted into the adjustment means holding body 35 with the collar 333 approaching the ink storage means 32. As a result, the slit S of the one flange 333 is in a state of facing the ink storage unit 32.

  Although not shown, the writing instrument 1 according to this embodiment has the other end communicating with the inside and outside of the position where the collector 33 of the adjusting means holding body 35 is inserted, and can take in air from the outside. Yes. That is, when the inside of the adjusting means holding body 35 is sealed, the liquid ink cannot be supplied to the writing unit 310 when the internal pressure is reduced as the liquid ink is consumed. Air can be taken into the interior 35 from the outside.

The ink guiding means 34 is a so-called relay core. Specifically, the ink guiding means 3
4 as a whole has liquid absorbency and is formed in a rod shape. In other words, the ink guiding means 34 is made of a material having excellent liquid absorbability (such as a resin molded product in which open cells are formed or a fiber material such as felt). It is molded into a rod shape with a length straddling the writing part 310).

  The ink guiding means 34 is inserted into the through hole H of the collector 33 (main shaft portion 331), one end side is inserted into the ink storage means 32 (cotton or the like), and the other end side is the pen tip portion 31 ( Written in the writing unit 310). In the writing instrument 1 according to this embodiment, an annular spacer 36 is interposed between the writing unit 310 and the collector 33, and the other end side of the ink guiding means 34 is inserted in the spacer 36. It is inserted into the writing unit 310. Thereby, the ink guiding means 34 can supply the writing ink 310 with the liquid ink stored by the ink storing means 32.

  The writing instrument 1 according to the present embodiment is as described above, and is configured such that the ink storage means 32 of the refill 3 is connected to the ink storage unit 30 and stores liquid ink from the ink storage unit 30. Therefore, the ink storage means 32 stores the maximum amount of liquid ink while liquid ink is present in the ink reservoir 30. That is, in the refill 3 having the above-described configuration, the ink storage means 32 is saturated with the liquid ink while the liquid ink is present in the ink reservoir 30.

  Thereby, in the refill 3 having the above-described configuration, the liquid ink stored by the ink storage unit 32 is supplied to the writing unit 310 (the pen tip unit 31) via the ink guide unit 34.

  In the refill 3 according to this embodiment, the maximum storage amount of the liquid ink in the ink storage unit 32 is set smaller than the maximum storage amount of the liquid ink in the ink storage unit 30, so that the liquid ink remaining amount is somewhat Regardless of this, while the liquid ink is present in the ink reservoir 30, the liquid ink in the ink storage means 32 becomes rich, and the ink storage means 32 is saturated with the liquid ink.

  In particular, since the maximum storage amount of the liquid ink in the ink storage unit 32 is 0.03 to 0.15 times the maximum storage amount of the liquid ink in the ink storage unit 30, the liquid ink stored in the ink storage unit 32. Since the storage amount of the liquid ink stored in the ink storage unit 30 is significantly larger than the storage amount of the liquid, the liquid in the ink storage unit 32 is used from the start of use until when the liquid ink in the ink storage unit 30 is used up or just before it is used up. Good ink writing is possible until the ink is plentiful and the liquid ink is exhausted or substantially absent.

  Thus, in the refill 3 having the above-described configuration, only the liquid ink stored by the ink storage means 32 is sequentially supplied to the writing unit 310, so that the liquid ink in the writing unit 310 becomes rich, but the ink storage The liquid ink is not excessively supplied to the writing unit 310 unlike the conventional writing instrument 1 or the refill 3 in which the pen point unit 31 is directly connected to the unit 30.

As described above, if there is liquid ink in the ink storage unit 30 in a state where the ink storage unit 32 is saturated with liquid ink, the liquid ink may ooze out from the ink storage unit 32 to the pen tip portion 31 side. However, the refill 3 according to the present embodiment is configured such that the liquid ink from the ink storage means 32 is held by the collector 33 by capillary action so as to balance the storage amount of the liquid ink in the ink storage means 32. Therefore, liquid ink more than necessary is not supplied to the pen tip portion 31, and liquid ink leakage from the writing portion 310 and liquid ink dripping are reliably prevented.

  Specifically, the collector 33 provided in the refill 3 according to this embodiment is arranged in a row in the axial direction of the main shaft portion 331 with respect to the plurality of partition blades 332... And the flange portion 333 extending on the outer periphery of the main shaft portion 331. Since the slits S are formed so as to form the collector 33, the liquid ink that has oozed out from the ink storage means 32 is caused by capillary action by the slits S (a plurality of slits S in a row) of the collar 333 and the partition wing 332, thereby collecting the collector 33. The liquid ink drawn into the collector 33 and drawn into the collector 33 is drawn between the partition blades 332 and 332 by the capillary force between the plurality of partition blades 332.

  As a result, the liquid ink (liquid ink overflowing from the ink storage means 32) that exceeds the maximum storage amount of the ink storage means 32 is held in the collector 33, and as a result, the liquid that is about to overflow from the ink storage means 32. Ink is not guided to the writing unit 310 by being guided by the ink guiding means 34.

  And the writing instrument 1 which concerns on this embodiment is arrange | positioned in the area | region where the collector 33 was open | released to air | atmosphere, and since the notch part C is provided in the position different from the slit S of the partition blade 332 ..., it accompanies writing. When the liquid ink in the ink storage means 32 is exhausted (when the storage capacity of the ink storage means 32 is sufficient), the liquid ink held by the collector 33 returns to the ink storage means 32 from the slit S. As a result, the ink is supplied to the writing unit 310 via the ink guiding means 34.

  Therefore, the refill 3 according to the present embodiment reliably prevents liquid leakage of the ink from the writing unit 310 and dripping of the liquid ink, while writing the liquid ink having the optimum liquid amount for writing at the tip of the pen tip unit 31. The unit 310 can be supplied.

  In addition, this invention is not limited to the said embodiment, Of course, it can change suitably in the range which does not deviate from the summary of this invention.

  In the above embodiment, the ink reservoir 30, the pen tip portion 31, the ink storage means 32, and the collector 33 are provided in the refill 3 that is attached to the body shaft 2 that constitutes the exterior of the writing instrument 1. For example, as shown in FIG. 4, the outer diameters of the ink reservoir 30 and the adjustment means holding body 35 are set to outer diameters suitable for the user to hold, and the ink reservoir 30 and the adjustment are performed. The means holder 35 may be the body shaft 2 that constitutes the exterior of the writing instrument 1, and the writing instrument 1 may be formed only by the configuration.

  In the above embodiment, the writing unit 310 of the nib portion 31 is configured with a hair bundle. However, the present invention is not limited to this. For example, the writing unit 310 may be configured with a felt tip as described above. The ball may be configured to be rotatably mounted on the pen tip holding body 311. Of course, the nib portion 31 may be composed of a fountain pen nib. In other words, the present invention is not limited to the type of pen as long as it includes an ink reservoir 30 that stores liquid ink and a pen tip portion 21 to which liquid ink stored in the ink reservoir 30 is supplied. Applicable.

  In the above embodiment, the ink storage unit 30 and the adjustment unit holding body 35 are molded separately and connected to each other. However, the present invention is not limited to this. For example, the ink storage unit 30 and the adjustment unit The holding body 35 may be integrally formed. On the other hand, the adjusting means holding body 35 is divided into a portion held by the ink storage means 32 and a portion held by the collector 33, and the divided adjusting means holding body 35 is connected. The adjustment means holding body 35 may be connected to the ink storage unit 30.

  In the above embodiment, the body shaft 2 is configured by the body shaft main body 20 and the front tube body 21 and the front tube body 21 is configured by one refill 3. However, the present invention is not limited to this. The cylindrical body 21 may be configured independently of the refill 3, the refill 3 may be inserted into the trunk shaft main body 20, and the leading cylinder 21 may be screwed into the trunk shaft main body 20. In this case, in the state where the tip cylinder 21 is screwed to the barrel main body 20, the refill 3 is prevented from coming out of the barrel main body 20 while maintaining at least the writing portion 310 of the pen tip portion 31 exposed to the outside. It goes without saying that it is configured to prevent it.

  In the above embodiment, the maximum storage amount of the liquid ink in the ink storage means 32 is made smaller than the maximum storage amount of the liquid ink in the ink storage unit 30, but the present invention is not limited to this. The maximum storage amount of the liquid ink in the means 32 and the maximum storage amount of the liquid ink in the ink storage unit 30 may be the same, or the maximum storage amount of the liquid ink in the ink storage unit 32 is set as the ink storage unit 30. It may be made smaller than the maximum storage amount of the liquid ink.

  However, if this is done, the initial stage (the amount of liquid ink in the ink storage unit 30 is approximately the same as the maximum storage amount, and the liquid ink stored by the ink storage means 32 is the maximum storage amount). In this case, the liquid ink in the ink storage means 32 becomes rich, but the liquid ink in the ink storage section 30 is sequentially stored in the ink storage means 32 due to the consumption of the liquid ink accompanying writing, and the ink storage section 30 is stored in the ink storage section 30 at an early stage. All of the liquid ink is occluded by the ink occlusion means 32.

  As a result, the liquid ink in the ink storage unit 30 runs out and the liquid ink is present only in the ink storage unit 32, so that the liquid absorption property of the ink storage unit 32 becomes resistance and the liquid ink is supplied to the writing unit 310. The situation that becomes difficult to occur occurs at an early stage. Therefore, in order to properly supply the liquid ink to the writing unit 310 until the stored liquid ink runs out or substantially disappears, the maximum occlusion amount of the liquid ink in the ink occlusion means 32 is the same as in the above embodiment. The maximum storage amount of liquid ink in the ink storage means 32 is preferably set to be smaller than the maximum storage amount of liquid ink in the ink storage unit 30. More preferably, it is set to double (median value is 0.09 times).

  DESCRIPTION OF SYMBOLS 1 ... Writing instrument, 2 ... Body shaft, 3 ... Refill, 20 ... Body shaft main body, 21 ... Tip cylinder, 30 ... Ink storage part, 31 ... Pen tip part, 32 ... Ink occlusion means, 33 ... Collector, 34 ... Ink Guide means 35 ... Adjusting means holding body 36 ... Spacer 200 ... Female screw 210 ... Male screw 310 ... Writing part 311 ... Pen tip holding body 312 ... Hook claw 331 ... Main shaft part 332 ... Divider blade, 333 ... collar part, B ... hair, C ... notch part, F ... flange, H ... through hole, H1 ... large diameter hole, H2 ... small diameter hole, S ... slit

Claims (8)

A cylinder that comprises an ink storage part that stores liquid ink and a pen tip part that has a writing part to which liquid ink is supplied from the ink storage part at the tip, and that constitutes the exterior of the writing instrument in a state where the pen point part is exposed A refill for a writing instrument attached to a shaft, which is interposed between an ink storage means connected to an ink storage section and configured to store liquid ink from the ink storage section, and the ink storage means and the pen tip section A collector that holds the liquid ink from the ink occlusion means by capillary action and balances the occlusion of the liquid ink in the ink occlusion means, and a predetermined range on one end side is filled with the ink occlusion means, and more than the ink occlusion means a cylindrical adjustment means holding body collector on the other end side is fitted, is formed through the collector, the ink inducing liquid ink ink occlusion means occlude the writing part of the pen tip portion And a guide means, said ink reservoir section, that the one end is formed in a cylindrical shape and the other end is open as well as closed, one end of the adjusting means retaining member is connected to the other end of the ink reservoir A refill for a writing instrument, wherein a space for storing the liquid ink is liquid-tightly defined .   The refill for a writing instrument according to claim 1, wherein the ink storage means is configured such that the maximum storage amount of liquid ink is set smaller than the maximum storage amount of liquid ink in the ink storage section.   The refill for a writing instrument according to claim 2, wherein the maximum storage amount of the liquid ink in the ink storage means is set to 0.03 to 0.15 times the maximum storage amount of the liquid ink in the ink storage unit.   The refill for a writing instrument according to any one of claims 1 to 3, wherein the ink occluding means is composed of a fiber material having liquid absorbency. A writing instrument comprising an ink storage part storing liquid ink and a pen tip part having a writing part to which liquid ink is supplied from the ink storage part at a tip, the ink storage part being connected to the ink storage part An ink storage means for storing the liquid ink from the ink storage means, and interposed between the ink storage means and the pen tip, and the liquid ink from the ink storage means is held by capillary action so that the liquid ink in the ink storage means A collector for balancing the occlusion, a cylindrical adjustment means holding body in which the ink occlusion means is filled in a predetermined range on one end side, and the collector is fitted on the other end side of the ink occlusion means, and penetrates the collector is provided with an ink induction means for inducing liquid ink ink occlusion means occlude the writing part of the pen tip portion, said ink reservoir portion, the other end is open with one end is closed Jo the formed, one end portion of the adjusting means retaining body that is connected to the other end portion of the ink reservoir, a writing instrument, characterized by defining a space for accommodating the liquid ink in a liquid-tight manner.   The writing instrument according to claim 5, wherein the ink storage unit is configured such that the maximum storage amount of liquid ink is set smaller than the maximum storage amount of liquid ink in the ink storage unit.   The writing instrument according to claim 6, wherein the maximum storage amount of liquid ink in the ink storage means is set to 0.03 to 0.15 times the maximum storage amount of liquid ink in the ink storage unit.   The writing instrument according to any one of claims 5 to 7, wherein the ink occluding means is made of a fiber material having liquid absorbency.

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