HK1250503A1 - Refill for writing tool and writing tool - Google Patents
Refill for writing tool and writing tool Download PDFInfo
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- HK1250503A1 HK1250503A1 HK18109874.2A HK18109874A HK1250503A1 HK 1250503 A1 HK1250503 A1 HK 1250503A1 HK 18109874 A HK18109874 A HK 18109874A HK 1250503 A1 HK1250503 A1 HK 1250503A1
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Description
This application is a divisional application of the patent application having the filing date of 2015, 1-19, application number of 201510025958.0 and the title "refill for writing instrument and writing instrument", the entire contents of which are incorporated herein by reference.
Technical Field
The present invention relates to a writing lead for writing instrument and a writing instrument.
Background
Conventionally, various types of writing instruments such as brush-type brushheads, ball-point pens, and fountain pens have been provided, and as shown in fig. 8, for example, there is a writing instrument having: a cylindrical barrel 40 constituting an exterior; an ink storage portion 41 for storing liquid ink in the barrel 40; the nib portion 42 is exposed from the barrel 40, has a writing portion 420 (pen tip) at the tip, and supplies liquid ink from the ink reservoir 41 to the writing portion 420.
In this writing instrument 4, the barrel 40 is elongated. The barrel 40 has a space formed therein and opened to one side in the longitudinal direction.
The writing instrument 4 has: an ink occlusion member 43 which is connected to the ink storage part 41 and occludes the liquid ink from the ink storage part 41; a collector 44 interposed between the ink occlusion member 43 and the pen tip portion 42 and holding the liquid ink from the ink occlusion member 43 based on a capillary phenomenon to thereby balance supply of the liquid ink in the ink occlusion member 43; and an ink guide member 45 inserted through the collector 44 and guiding the liquid ink occluded by the ink occlusion member 43 to the writing part 420 of the nib 42 (see, for example, patent document 1).
Therefore, in the writing instrument 4, the ink occluding member 43 occludes the liquid ink from the ink storage portion 41. Also, the collector 44 holds the liquid ink in the ink occluding member 43 based on the capillary phenomenon. Thus, the writing instrument 4 is configured to balance the supply of the liquid ink in the ink storage member 43. Therefore, the writing instrument 4 can prevent the liquid ink supplied to the writing section 420 from being insufficient, and can prevent the liquid ink from leaking and dripping from the writing section 420.
In the writing instrument 4, as described above, the liquid ink occluded by the ink occluding member 43 flows out from the writing part 420. Therefore, for example, when the flow of the liquid ink from the ink storage part 41 to the ink occlusion member 43 is stopped, only the liquid ink held by the ink occlusion member 43 is supplied to the collector 44. In this case, the amount of the liquid ink flowing out from the writing portion 420 of the nib portion 42 decreases.
Therefore, in the writing instrument 4, the liquid ink of the liquid amount most suitable for writing may not be supplied to the writing portion 420 of the nib portion 42.
Patent document 1 Japanese patent laid-open No. 2012 and 135982.
Disclosure of Invention
In view of the above circumstances, an object of the present invention is to provide a writing instrument refill capable of smoothly flowing liquid ink from an ink storage portion to an ink storage member, thereby supplying liquid ink of an optimum amount for writing to a writing portion at a writing tip portion, and a writing instrument.
The invention provides a writing instrument refill, comprising:
an ink storage portion storing liquid ink;
a nib portion having a writing portion at a tip end thereof, the writing portion being supplied with liquid ink from an ink reservoir;
an ink occlusion member which is connected to the ink storage portion and occludes the liquid ink from the ink storage portion;
a collector interposed between the ink occlusion member and the pen tip portion and holding the liquid ink from the ink occlusion member based on a capillary phenomenon to balance supply of the liquid ink in the ink occlusion member;
an ink guide member which is provided in the collector so as to penetrate therethrough and guides the liquid ink occluded by the ink occlusion member to the writing section of the pen tip portion;
an inflow port forming part formed in a flow path between the ink storing part and the ink storing member, defining a plurality of inflow ports in the flow path,
the writing instrument refill of the present invention is inserted into a barrel constituting an exterior of a writing instrument.
As one mode of the writing instrument refill of the present invention, there may be mentioned,
the inlet forming part has at least one partition part for partitioning the flow passage into a plurality of regions,
the inlet is formed by a plurality of regions, and the plurality of regions are separated by at least one separation portion in the flow path.
As another mode of the writing instrument refill of the present invention, there may be mentioned,
the spacer extends in a direction orthogonal to the centerline of the flow passage.
The writing tool of the present invention includes:
an ink storage portion storing liquid ink;
a nib portion having a writing portion at a tip end thereof, the writing portion being supplied with liquid ink from an ink reservoir;
an ink occlusion member which is connected to the ink storage portion and occludes the liquid ink from the ink storage portion;
a collector interposed between the ink occlusion member and the pen tip portion and holding the liquid ink from the ink occlusion member based on a capillary phenomenon to balance supply of the liquid ink in the ink occlusion member;
an ink guide member which is provided in the collector so as to penetrate therethrough and guides the liquid ink occluded by the ink occlusion member to the writing section of the pen tip portion;
the inflow port forming part is an inflow port forming part formed in a flow path between the ink storage part and the ink storage member, and defines a plurality of inflow ports in the flow path.
As an embodiment of the writing instrument of the present invention, it is also possible,
the inlet forming part has at least one partition part for partitioning the flow passage into a plurality of regions,
the inlet is formed by a plurality of regions, and the plurality of regions are separated by at least one separation portion in the flow path.
As another mode of the writing instrument of the present invention, there may be mentioned,
the spacer extends in a direction orthogonal to the centerline of the flow passage.
Drawings
Fig. 1 is an overall view of a writing instrument according to an embodiment of the present invention.
Fig. 2 is an overall sectional view of the writing instrument of the same embodiment.
Fig. 3 is an enlarged partial cross-sectional view of the writing instrument of the same embodiment, which is an enlarged partial cross-sectional view including a nib, an ink occluding member, and a collector.
Fig. 4 is a partially enlarged sectional view of the writing instrument of the same embodiment, which is a sectional view taken along line IV-IV of fig. 3.
Fig. 5 is a partially enlarged sectional view of the writing instrument of the same embodiment, which is a sectional view taken along line V-V of fig. 3.
Fig. 6 is a partially enlarged sectional view of the writing instrument of the same embodiment, which is a sectional view taken along line VI-VI of fig. 3.
Fig. 7 is an overall sectional view of a writing instrument according to another embodiment of the present invention.
Fig. 8 is an enlarged partial cross-sectional view of a conventional writing instrument, including a nib, an ink storage member, and a collector.
Description of the reference numerals
1 … writing instrument, 2 … penholder, 3 … refill, 4 … writing instrument, 20 … penholder body, 21 … front cylinder, 30 … ink storage part, 31 … nib part, 32 … ink storage part, 33 … collector, 34 … ink guide part, 35 … regulating part retainer, 36 … inflow port forming part, 37 … spacer, 310 … writing part, 311 … nib retainer, 312 … locking claw, 331 … main shaft part, 332 … spacing wing, 333 … flange part, 360 … spacing part, B … hair, C … cutting part, F … flange, H … through hole, H1 … large diameter hole, H2 … small diameter hole, R … inflow port, S … slit.
Detailed Description
Hereinafter, a writing instrument according to an embodiment of the present invention will be described with reference to the drawings.
As shown in fig. 1, a pen tip 31 is fixed to one end of a barrel 2 constituting an outer casing.
Further specifically described. As shown in FIG. 2, the writing instrument of the present embodiment includes a cylindrical barrel 2; a writing instrument cartridge (hereinafter, simply referred to as "cartridge") 3 attached to the barrel 2.
The barrel 2 may be formed of a single cylindrical body, but in the present embodiment, one end side is configured to be separable.
The barrel 2 is elongated in one direction, and a space is formed inside the barrel so as to be open on one side in the longitudinal direction. Further specifically described. The barrel 2 has a barrel main body 20 formed in a cylindrical shape. The cartridge body 20 is open at only one end in the axial direction. Thus, the barrel 2 has a front cylinder 21 detachable from one end side of the barrel body 20.
The barrel main body 20 is formed of a resin molded product. The barrel body 20 has a male screw 200 formed on an outer peripheral surface of one end thereof.
The front cylinder 21 is formed in a cylindrical shape. That is, both ends of the front cylinder 21 in the axial direction are open. In the present embodiment, the following description will be made with one end of the front tubular body 21 and the other end of the front tubular body.
The outer diameter of the front cylinder 21 is set to be tapered from one end side to the other end side in appearance. A female screw 210 is formed on the inner periphery of one end of the front cylinder 21. Therefore, the front cylinder 21 is concentrically coupled to the barrel body 20 by screwing the female screw 210 to the male screw 200 of the barrel body 20.
The hole of the inside of the front cylinder 21 is formed to have a stepped shape. The hole on one end side of the front cylinder 21 is larger in diameter than the hole on the other end side. In the present embodiment, the adjustment member holder 35, which will be described later, is press-fitted into the large-diameter hole H1 of the front cylinder 21. The nib portion 31 (nib holder 311) is inserted into the small-diameter hole H2 of the front cylinder 21. Thus, the front cylinder 21 of the present embodiment is fixed to the adjustment member holder 35. Therefore, the front barrel 21 constitutes a part of the barrel 2 and also constitutes a part of the cartridge 3.
The cartridge 3 has: an ink storage portion 30 for storing liquid ink; a pen tip part 31 having a writing part 310 at the tip thereof, and supplying liquid ink from an ink reservoir part 30 to the writing part 310; an ink occluding member 32 which is connected to the ink storage portion 30 and occludes liquid ink from the ink storage portion 30; a collector 33 interposed between the ink occlusion member 32 and the pen tip portion 31 and holding the liquid ink from the ink occlusion member 32 based on a capillary phenomenon to balance the supply of the liquid ink in the ink occlusion member 32; and an ink guide member 34 which is provided so as to penetrate the collector 33 and guides the liquid ink occluded in the ink occlusion member 32 to the writing portion 310 of the pen tip portion 31.
The refill 3 has an adjustment member holder 35 having the ink storage member 32 and the catcher 33 incorporated therein, and the adjustment member holder 35 is formed in a tubular shape and has a first open end continuous with the inside of the ink storage part 30 and a second open end located on the opposite side of the first open end.
The lead 3 further includes an inlet forming portion 36 defining a plurality of inlets R in the flow path, and the inlet forming portion 36 is formed in the flow path between the ink storing portion 30 and the ink storing member 32.
The ink reservoir 30 defines a liquid-tight space for storing liquid ink. The ink reservoir 30 is filled with a liquid ink having fluidity and low viscosity.
Further specifically described. The ink reservoir 30 is elongated. The ink reservoir 30 has a space formed therein and opened to one side in the longitudinal direction. In other words, the ink reservoir 30 is formed in a cylindrical shape. One end in the axial direction of the ink reservoir 30 is closed. The other end in the axial direction of the ink reservoir 30 is open.
The adjustment member holder 35 holding the ink storage member 32 is connected to the other end of the ink storage portion 30. This makes the inside of the ink reservoir 30 liquid-tight. Therefore, the ink reservoir 30 can maintain a state in which the liquid ink is filled therein. The liquid ink used in the writing instrument of the present embodiment may be any fluid ink, and may be any of various inks such as pigment-containing aqueous ink and fluorescent ink, and when the writing instrument 1 is a writing brush type brush head pen, ink is used as the liquid ink.
As shown in fig. 3, the nib portion 31 has: a writing section 310 configured to be capable of holding the supplied liquid ink; the pen tip holder 311 holds the writing section 310.
The writing section 310 is configured by a member configured by a felt piece or a bundle of bristles that can hold liquid ink by capillary force or liquid absorption force, a member configured by attaching liquid ink to an outer surface, or the like. In the present embodiment, the writing section 310 is formed of a bundle of a plurality of hairs B. The plurality of hairs B are respectively resin fibers. One ends of the plurality of hairs B are integrally welded. Thus, the writing section 310 is configured to have a plurality of bristles B as a bristle bundle. In the writing section 310, one end of each of the plurality of bristles B is welded to form a flange F. The flange F extends radially outwardly of the tuft.
The pen tip holder 311 is formed in a cylindrical shape. Further, the writing section 310 is inserted into the pen tip holder 311. Therefore, the tip end side of the writing section 310 extends from the inside of the pen holder 311 to the outside of the pen holder 311. The pen tip holder 311 is pushed into one end of the adjustment member holder 35. Thereby, the pen tip holder 311 is fixed to the adjustment member holder 35. As described above, in the writing instrument 1 of the present embodiment, the front cylinder 21 of the barrel 2 forms a part of the writing lead 3. Therefore, the pen tip holder 311 has a locking claw 312 formed at its distal end portion so as to protrude radially outward. The front end side of the front cylinder 21 is fixed by being sandwiched between the locking claw 312 and the front end of the adjustment member holder 35.
The cartridge 3 of the present embodiment holds the ink storage member 32 and the catcher 33 by the common adjustment member holder 35. As described above, the adjustment member holder 35 is formed in a cylindrical shape with both ends open. The first opening end of the adjustment member holder 35 is concentrically pressed into the other end (open end) of the ink reservoir 30 (tubular body), whereby the adjustment member holder 35 is liquid-tightly connected to the ink reservoir 30.
The ink absorbing member 32 is made of a fibrous material having liquid absorption properties such as cotton or felt. The ink absorbing member 32 is filled in a predetermined range on one end side of the adjusting member holding body 35. The maximum amount of liquid ink absorbed by the ink storage member 32 in the present embodiment is set to be smaller than the maximum amount of liquid ink stored in the ink storage portion 30. In the present embodiment, the maximum amount of liquid ink absorbed by the ink absorbing member 32 is set to 0.03 to 0.15 times the maximum amount of liquid ink stored in the ink storage portion 30.
The collector 33 has: a main shaft portion 331 having a through hole H formed on a center line thereof for inserting the ink guide member 34 therethrough; a plurality of spacer blades 332 are disposed at intervals in the axial direction of the main shaft 331 and extend from the outer surface of the main shaft 331. The main shaft portion 331 has flange portions 333 formed at both ends thereof and extending radially outward. Further, the main shaft portion 331 is provided with a plurality of spacer wings 332 extending from the outer surface between the two flange portions 333.
Each of the plurality of spacer blades 332 extends substantially from the entire circumference of the main shaft 331 and has an annular shape. The plurality of spacer fins 332 are spaced apart from each other so that liquid ink flows between adjacent spacer fins 332 by capillary force. Generally, each of the plurality of spacer blades 332 is arranged such that the interval thereof gradually increases toward the other end side in the axial direction of the main shaft 331.
As shown in fig. 4 and 5, slits S extending in the extending direction from the main shaft portion 331 are formed in the one flange portion 333 and the plurality of spacer fins 332, respectively. Slits S formed in one flange 333 and the plurality of spacers 332 are formed in a row in the axial direction of the main shaft 331. Note that, the writing instrument 1 (collector 33) of the present embodiment is formed so that the slit S goes beyond the spacer 332 into the main shaft 331.
As shown in fig. 4, each of the plurality of spacer fins 332 is provided with a cut-out portion C for exchanging air, and the cut-out portion C is provided at a position shifted from the slit S in the circumferential direction of the spacer fin 332. The cutout portion C is formed by being cut from the front end of the spacer 332 in the extending direction toward the base end (the main shaft portion 331 side). The cutout C has an opening area larger than the slit S when viewed in the axial direction of the main shaft 331.
As shown in fig. 4, the collector 33 is fitted into the adjustment member holder 35 so as to be positioned on the other end side of the adjustment member holder 35 in a state where the flange 333 on one side is opposed to the ink occlusion member 32. That is, the collector 33 is fitted into the regulating member holder 35 in a state where the flange portion 333 is close to the ink occlusion member 32. Thereby, the slit S of the one flange 333 faces the ink storage member 32.
In the writing instrument 1, although not shown, the other end side of the adjusting member holder 35, which is located closer to the inside than the position where the collector 33 is fitted, communicates with the inside and the outside, and therefore air can be taken in from the outside. That is, if the inside of the adjustment member holder 35 is sealed, the liquid ink cannot be supplied to the writing section 310 when the internal pressure is reduced due to the consumption of the liquid ink. Therefore, the writing instrument 1 takes in air from the outside into the adjustment member holder 35.
The ink guide member 34 is a so-called relay core. Further specifically described. The ink guide member 34 is configured to have liquid absorption properties as a whole. Further, the ink guide member 34 is formed in a rod shape. That is, the ink guide member 34 is made of a material having excellent liquid absorption properties (a resin molded product in which open cells are formed, a fibrous material such as felt, etc.), and the ink guide member 34 is a member molded into a rod shape having a length that spans the ink storage member 32 and the nib portion 31 (writing portion 310).
In a state where the ink guide member 34 is inserted into the through-hole H of the collector 33 (the main shaft portion 331), one end side is pierced into the ink occlusion member 32 (cotton or the like), and the other end side is pierced into the nib portion 31 (writing portion 310). In the writing instrument 1 of the present embodiment, an annular spacer 37 is interposed between the writing part 310 and the collector 33. The other end of the ink guide member 34 is inserted into the writing section 310 while being inserted through the spacer 37. Thereby, the ink guide member 34 can supply the liquid ink occluded in the ink occluding member 32 to the writing part 310.
As shown in fig. 6, the inlet forming portion 36 includes at least one partition portion 360 that partitions the flow passage into a plurality of regions. In the writing instrument 1 of the present embodiment, a flow path is defined by the inner periphery of the first opening end of the adjustment member holder 35. Therefore, the inflow port forming portion 36 includes at least one (two in the present embodiment) partition portion 360 that partitions the first opening end of the adjustment member holder 35 into a plurality of regions.
The two spacers 360 extend in a direction orthogonal to the center line of the first opening end of the adjustment member holder 35. Therefore, in the present embodiment, a plurality of inflow ports R are formed by a plurality of regions separated by two partitions 360 in the first opening end of the adjustment member holder 35. Further, the two spacing portions 360 abut against the ink occlusion member 32. That is, the inflow port forming part 36 is configured so that no gap is formed between the two spacing parts 360 and the ink storage member 32. Thus, the writing instrument 1 restricts the movement of the ink storage member 32 toward the ink reserving portion 30 by the inflow port forming portion 36 (the partition portion 360).
The writing instrument 1 of the present embodiment is as described above. The writing instrument 1 has a cartridge 3, and an ink storage member 32 connected to the ink storage portion 30. Therefore, the liquid ink in the ink reservoir 30 flows into the adjustment member holder 35 through the plurality of inlets R.
Then, after the liquid ink in the ink storing part 30 flows into the regulating member holding body 35 through the plurality of inflow ports R, the ink storing member 32 stores the liquid ink. Therefore, the ink occluding member 32 occludes the maximum occluded amount of liquid ink during the presence of liquid ink in the ink storage portion 30. That is, the writing lead 3 of the writing instrument 1 is saturated with the liquid ink in the ink storage member 32 while the liquid ink is present in the ink storage portion 30.
Thereby, the writing element 3 of the writing instrument 1 and the liquid ink occluded in the ink occluding member 32 are supplied to the writing part 310 (writing tip 31) through the ink guide member 34.
The maximum amount of the liquid ink stored in the ink storage member 32 of the writing instrument 1 is set to be smaller than the maximum amount of the liquid ink stored in the ink storage portion 30 in the writing instrument 3. Therefore, in the writing instrument 1, the liquid ink in the ink storage member 32 is sufficient while the liquid ink is present in the ink storage portion 30 regardless of the amount of the liquid ink remaining in the writing core 3. Therefore, the liquid ink in the ink occluding member 32 is in a saturated state.
In particular, since the maximum amount of liquid ink absorbed in the ink absorbing member 32 is 0.03 times to 0.15 times the maximum amount of liquid ink stored in the ink storage portion 30, the amount of liquid ink stored in the ink storage portion 30 is considerably larger than the amount of liquid ink absorbed in the ink absorbing member 32. Therefore, in the writing instrument 1, the liquid ink in the ink storage member 32 is sufficient from the start of use until the liquid ink in the ink storage portion 30 is used up or is just about to be used up, and good writing can be performed until the liquid ink is used up or almost used up.
In this way, in the writing lead 3 of the writing instrument 1, only the liquid ink occluded by the ink occluding member 32 is sequentially supplied to the writing section 310, and therefore, the liquid ink in the writing section 310 is sufficient. Further, in the writing lead 3 of the writing instrument 1, unlike the conventional writing instruments 1 and writing leads 3, the liquid ink is not excessively supplied to the writing section 310 because the writing tip 31 is directly connected to the ink reservoir 30.
The ink cartridge 3 of the writing instrument 1 is balanced in the supply of the liquid ink in the ink storage member 32 by the collector 33 interposed between the ink storage member 32 and the pen tip portion 31. That is, the refill 3 of the writing instrument 1 holds the liquid ink exceeding the maximum amount of the ink occlusion member 32 by the catcher 33, or returns the liquid ink held by the catcher 33 to the ink occlusion member 32, thereby achieving the balance of the supply of the liquid ink in the ink occlusion member 32.
Further specifically described. When the liquid ink is present in the ink reserving portion 30 in a state where the liquid ink in the ink storing member 32 is saturated, the writing core 3 of the writing instrument 1 may flow out from the ink storing member 32 toward the pen tip portion 31. However, in the cartridge 3 of the present embodiment, the collector 33 can hold the liquid ink of the ink occlusion member 32 by a capillary phenomenon. Therefore, the pen core 3 can prevent the liquid ink from being supplied to the pen tip portion 31 in an amount larger than necessary.
The catcher 33 of the lead 3 of the present embodiment is formed with slits S aligned in the axial direction of the main shaft 331 with respect to the plurality of spacer fins 332 and the flange 333 extending on the outer periphery of the main shaft 331. Therefore, the liquid ink flowing out of the ink occlusion member 32 is drawn into the collector 33 by a capillary phenomenon generated by the flange portion 333 and the slits S (a plurality of slits S arranged in a row) of the spacer fins 332. Also, the liquid ink introduced into the collector 33 is introduced between the spaced wings 332 by a capillary force between the spaced wings 332.
Thereby, the liquid ink exceeding the maximum absorbing amount of the ink occluding member 32 (the liquid ink overflowing from the ink occluding member 32) is held by the collector 33, and as a result, the liquid ink which is intended to overflow from the ink occluding member 32 is not guided to the ink guiding member 34 and guided toward the writing part 310.
Further, the pen core 3 of the writing instrument 1 can return the liquid ink held by the collector 33 to the ink occlusion member 32 as described above, and an appropriate amount of ink can be supplied from the ink occlusion member 32 to the writing section 310 through the ink guide member 34. Further specifically described. The writing instrument 1 has the refill 3 in which the collector 33 is disposed in an area where the atmosphere is open, and the spacer 332 is provided with a cut-out portion C at a position different from the slit S. Therefore, in the writing pen 3 of the writing instrument 1, the liquid ink held by the collector 33 is returned to the ink storage member 32 through the slit S, whereby the liquid ink can be supplied to the writing section 310 through the ink guide member 34.
Therefore, the pen core 3 of the writing instrument 1 can reliably prevent the liquid ink from leaking and dropping from the writing section 310, and can supply the liquid ink of the optimum liquid amount to the writing section 310 located at the tip of the nib portion 31 at the time of writing.
In the present embodiment, the writing instrument 1 includes the refill 3 having the inlet forming portion 36 defining the plurality of inlets R in the flow path. That is, the writing instrument refill 3 is configured such that the inlet forming portion 36 defines a plurality of inlets R having a smaller flow path area than the flow path in the flow path.
Therefore, the writing element 3 of the writing instrument 1 can circulate the liquid ink in the ink reserving portion 30 through a part of the plurality of flow ports R and circulate the air entering the pen tip portion 31 through another flow port different from the flow port.
When the external air enters the ink reservoir 30 from the pen tip 31, the air is replaced with the liquid ink in the ink reservoir 30. That is, the liquid ink in the ink reservoir 30 is pushed out from the ink reservoir 30 by air entering from the outside. Thus, in the writing core 3 of the writing instrument 1, the ink reservoir 30 is suppressed from being in a negative pressure state, and the liquid ink can be prevented from flowing out of the pen tip 31 and being stagnant.
In the writing instrument 1, the spacer portion of the refill 3 extends in the direction perpendicular to the center line of the flow path, so that the plurality of inlets R can be arranged in the flow path without being offset. The plurality of inlets R have the same or substantially the same area. Thereby, the writing lead 3 of the writing instrument 1 can supply the liquid ink to the ink occlusion member 32 without variation.
Therefore, the pen core 3 of the writing instrument 1 can smoothly flow the liquid ink from the ink reserving portion 30 to the ink storing member 32, and can supply the liquid ink of an optimum liquid amount for writing to the writing portion of the pen tip portion 31.
The present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the present invention.
In the above embodiment, the writing implement 1 is configured such that the refill 3 is attached to the barrel 2 constituting the outer casing, and the refill 3 is provided with the ink storage portion 30, the pen tip portion 31, the ink storage member 32, and the collector 33, but the present invention is not limited thereto. For example, as shown in fig. 7, the outer diameters of the ink reservoir 30 and the adjustment member holder 35 may be set to an outer diameter suitable for a user to grip, and the ink reservoir 30 and the adjustment member holder 35 may be used as the barrel 2 constituting the outer covering of the writing instrument 1, and only this structure may be used as the writing instrument 1.
In the above embodiment, the writing part 310 of the nib part 31 is constituted by the bundle of hairs, but is not limited thereto. For example, as described above, the writing section 310 may be formed of a felt sheet, or may be formed of a ball rotatably attached to the pen tip holder 311. It is needless to say that the nib portion 31 may be formed by a nib of a pen. That is, the present invention can be applied to a writing instrument having the ink reservoir 30 for storing liquid ink and the pen tip 31 to which the liquid ink stored in the ink reservoir 30 is supplied, regardless of the type of pen.
In the above embodiment, the first opening end of the adjustment member holder 35 is partitioned by the four partitions 360, but the present invention is not limited thereto. For example, the number of the spacers 360 may be one, or three or more.
In the above embodiment, the inflow port forming portion 36 (the spacer portion 360) is formed integrally with the adjustment member holder 35, but the present invention is not limited thereto. For example, the inflow port forming portion 36 may be configured such that a member separate from the adjustment member holder 35 is adjacent to the first open end of the adjustment member holder 35.
In the above embodiment, the inflow port forming portion 36 is configured to have the spacing portion 360, and the spacing portion 360 spaces the first opening of the adjustment member holder 35 into a plurality of regions, but is not limited thereto. For example, the inlet port forming portion 36 may have a closing portion formed with a plurality of through holes for closing the first opening of the adjustment member holder 35. In this case, the plurality of through holes are preferably formed so as not to be offset with respect to the entire sealing portion.
In the above embodiment, the ink reservoir 30 and the adjustment member holder 35 are formed separately, and the ink reservoir 30 and the adjustment member holder 35 are connected to each other. For example, the ink reservoir 30 and the adjustment member holder 35 may be integrally molded. In contrast, the adjustment member holder 35 may be formed in a divided manner so as to hold the ink storage member 32 and the collector 33, the divided adjustment member holder 35 may be coupled to each other, and the adjustment member holder 35 may be coupled to the ink storage portion 30.
In the above embodiment, the barrel body 20 and the front cylinder 21 constitute the barrel 2, and the front cylinder 21 also constitutes a part of the cartridge 3, but the present invention is not limited thereto. For example, the front cylinder 21 may be configured independently of the cartridge 3, and the cartridge 3 may be inserted into the barrel body 20 and then the front cylinder 21 may be screwed into the barrel body 20. In this case, the front cylinder 21 may be configured to prevent the cartridge 3 from coming off the barrel body 20 while maintaining a state in which at least the writing portion 310 of the nib 31 is exposed to the outside in a state in which the front cylinder is screwed into the barrel body 20.
In the above embodiment, the maximum amount of liquid ink absorbed in the ink occluding member 32 is made smaller than the maximum amount of liquid ink stored in the ink storage portion 30, but the present invention is not limited thereto. For example, the maximum amount of liquid ink taken up in the ink occluding member 32 and the maximum amount of liquid ink stored in the ink storage portion 30 may be the same, and the maximum amount of liquid ink taken up in the ink occluding member 32 may be made larger than the maximum amount of liquid ink stored in the ink storage portion 30.
However, in this case, in the initial stage (when the amount of the liquid ink in the ink storage portion 30 is substantially equal to the maximum storage amount and the amount of the liquid ink stored in the ink storage member 32 is the maximum storage amount), although the amount of the liquid ink in the ink storage member 32 is sufficient, the liquid ink in the ink storage portion 30 is gradually stored in the ink storage member 32 as the writing liquid ink is consumed, and the entire liquid ink in the ink storage portion 30 is stored in the ink storage member 32 in an early stage.
Then, the liquid ink in the ink reserving portion 30 is consumed and the liquid ink exists only in the ink storing member 32, so that the liquid absorption property of the ink storing member 32 becomes a resistance, and it becomes difficult to supply the liquid ink to the writing portion 310 at an early stage. Therefore, in order to appropriately supply the liquid ink to the writing section 310 until the stored liquid ink becomes depleted or almost depleted, as in the above-described embodiment, the maximum amount of the liquid ink stored in the ink storage member 32 is preferably set to be smaller than the maximum amount of the liquid ink stored in the ink storage section 30, and more preferably, the maximum amount of the liquid ink stored in the ink storage member 32 is set to be 0.03 times to 0.15 times (0.09 times as large as the intermediate value) the maximum amount of the liquid ink stored in the ink storage section 30.
Claims (6)
1. A pen core for a writing instrument is characterized in that,
comprising:
an ink storage portion storing liquid ink;
a nib portion having a writing portion at a tip end thereof, the writing portion being supplied with liquid ink from an ink reservoir;
an ink occlusion member which is connected to the ink storage portion and occludes the liquid ink from the ink storage portion;
a collector which is entirely interposed between the ink storage member and the pen tip portion and holds the liquid ink in the ink storage member by capillary action to balance the supply of the liquid ink in the ink storage member;
an ink guide member which is provided in the collector so as to penetrate therethrough and guides the liquid ink occluded by the ink occlusion member to the writing section of the pen tip portion;
an inflow port forming part formed in a flow path which is disposed between the ink storing part and the ink storing member and which passes the liquid ink from the ink storing part to the ink storing member, the inflow port forming part defining a plurality of inflow ports in the flow path,
the writing instrument refill is inserted into a barrel constituting an exterior of the writing instrument.
2. The cartridge for a writing instrument according to claim 1, wherein,
the inlet forming part has at least one partition part for partitioning the flow passage into a plurality of regions,
the inlet is formed by a plurality of regions, and the plurality of regions are separated by at least one separation portion in the flow path.
3. The cartridge for a writing instrument according to claim 2, characterized in that,
the spacer extends in a direction orthogonal to the centerline of the flow passage.
4. A writing instrument, comprising:
an ink storage portion storing liquid ink;
a nib portion having a writing portion at a tip end thereof, the writing portion being supplied with liquid ink from an ink reservoir;
an ink occlusion member which is connected to the ink storage portion and occludes the liquid ink from the ink storage portion;
a collector which is entirely interposed between the ink storage member and the pen tip portion and holds the liquid ink from the ink storage member based on a capillary phenomenon to balance the supply of the liquid ink in the ink storage member;
an ink guide member which is provided in the collector so as to penetrate therethrough and guides the liquid ink occluded by the ink occlusion member to the writing section of the pen tip portion;
the inflow port forming part is formed in a flow path which is disposed between the ink storing part and the ink storing member and which flows the liquid ink from the ink storing part to the ink storing member, and defines a plurality of inflow ports in the flow path.
5. The writing instrument of claim 4,
the inlet forming part has at least one partition part for partitioning the flow passage into a plurality of regions,
the inlet is formed by a plurality of regions, and the plurality of regions are separated by at least one separation portion in the flow path.
6. The writing instrument of claim 5,
the spacer extends in a direction orthogonal to the centerline of the flow passage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014007983A JP6367561B2 (en) | 2014-01-20 | 2014-01-20 | Writing instrument refill and writing instrument |
| JP2014-007983 | 2014-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HK1250503A1 true HK1250503A1 (en) | 2018-12-21 |
| HK1250503B HK1250503B (en) | 2020-04-03 |
Family
ID=52354835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK18109874.2A HK1250503B (en) | 2014-01-20 | 2018-07-31 | Refill for writing tool and writing tool |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9688092B2 (en) |
| EP (1) | EP2896509A1 (en) |
| JP (1) | JP6367561B2 (en) |
| CN (2) | CN107972382B (en) |
| HK (1) | HK1250503B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6514480B2 (en) * | 2014-10-16 | 2019-05-15 | 株式会社呉竹 | Ink filler |
| US10507684B2 (en) | 2015-12-28 | 2019-12-17 | Mitsubishi Pencil Company, Limited | Writing instrument |
| JP1575856S (en) * | 2016-06-21 | 2017-05-08 | ||
| JP6868377B2 (en) * | 2016-11-29 | 2021-05-12 | ぺんてる株式会社 | Liquid cosmetic container |
| EP3695982A4 (en) * | 2017-10-11 | 2021-06-16 | 3S Corporation | Applicator |
| CN112074418B (en) * | 2018-05-28 | 2022-09-06 | 株式会社吴竹 | Pen and refill for pen |
| KR102163444B1 (en) * | 2019-01-31 | 2020-10-08 | 조지원 | A applicator equipped with a particle guide member |
| KR102187398B1 (en) * | 2019-07-29 | 2020-12-04 | 조지원 | Eyeliner with an applicator integral liquid feeding core |
| KR102359107B1 (en) * | 2020-12-04 | 2022-02-07 | 조지원 | Eyeliner with bypass passage |
| CN112644168A (en) * | 2020-12-18 | 2021-04-13 | 上海幂方电子科技有限公司 | Printing device |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906446A (en) * | 1996-10-22 | 1999-05-25 | Bic Corporation | Fillerless writing instrument |
| JP2000233592A (en) * | 1999-02-17 | 2000-08-29 | Pilot Ink Co Ltd | Direct ink supply writing utensil |
| KR100720698B1 (en) * | 2000-03-22 | 2007-05-21 | 미쓰비시 펜슬 가부시키가이샤 | Writing utensils |
| JP4523183B2 (en) * | 2001-02-02 | 2010-08-11 | 株式会社トンボ鉛筆 | Ink writing instrument |
| JP3579036B2 (en) | 2001-05-29 | 2004-10-20 | 三菱鉛筆株式会社 | Applicator |
| US6702498B2 (en) | 2001-05-29 | 2004-03-09 | Mitsubishi Pencil Kabushiki Kaisha | Writing implement |
| TWI260280B (en) | 2002-05-31 | 2006-08-21 | Pentel Kk | Applicator |
| US7044675B2 (en) * | 2002-12-10 | 2006-05-16 | Bic Corporation | Leak resistant writing instrument |
| JP2005324336A (en) | 2004-05-12 | 2005-11-24 | Pilot Ink Co Ltd | Ink tank interchanging type writing utensil |
| KR100946428B1 (en) * | 2006-03-09 | 2010-03-10 | 파일롯트 잉크 가부시키가이샤 | Direct Writing Instruments |
| CN100509438C (en) * | 2006-03-09 | 2009-07-08 | 百乐墨水株式会社 | Direct-fluid-supply writing implement |
| JP3152082U (en) * | 2009-05-06 | 2009-07-16 | パイロットインキ株式会社 | Direct liquid writing instrument |
| US8408831B2 (en) * | 2009-07-31 | 2013-04-02 | Peter A. Paradise | Writing instrument casing and methods of use |
| JP5805947B2 (en) * | 2010-12-27 | 2015-11-10 | 株式会社呉竹 | Writing instrument refill and writing instrument |
-
2014
- 2014-01-20 JP JP2014007983A patent/JP6367561B2/en active Active
-
2015
- 2015-01-19 CN CN201711193418.9A patent/CN107972382B/en active Active
- 2015-01-19 CN CN201510025958.0A patent/CN104786694A/en active Pending
- 2015-01-19 US US14/599,805 patent/US9688092B2/en active Active
- 2015-01-20 EP EP15151750.5A patent/EP2896509A1/en active Pending
-
2018
- 2018-07-31 HK HK18109874.2A patent/HK1250503B/en unknown
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