CN100450790C

CN100450790C - Direct-fluid-supply writing implement

Info

Publication number: CN100450790C
Application number: CNB2005100992898A
Authority: CN
Inventors: 栗田哲宏; 稻叶孝男
Original assignee: Pilot Ink Co Ltd
Current assignee: Pilot Ink Co Ltd
Priority date: 2004-09-14
Filing date: 2005-09-14
Publication date: 2009-01-14
Anticipated expiration: 2025-09-14
Also published as: CN101274565B; CN101274565A; CN1749029A

Abstract

The invention aims to provide a direct fluid type writing implement which has no possibility of the ink in an ink tank leaking from the penpoint side, get ready for writing in a short time by a quick change of air and the ink at the initial discharge of the ink, and moreover can simplify the structure. The direct fluid type writing implement comprises the penpoint, an ink occluding body connected to the rear end of the penpoint, the ink tank disposed in the rear of the ink occluding body and storing the ink directly and communication pipes connecting the ink tank with the ink occluding body. The communication pipes are provided in a plurality. The respective front ends of the communication pipes are opened. The ink occluding body has a high-density part and a low-density part connected to the high-density part in the rear of this part. The respective front ends of the communication pipes and the rear end of the penpoint are connected to the high-density part.

Description

Direct-fluid-supply writing implement

Technical field

The present invention relates to direct ink reservoir in ink barrel, between above-mentioned ink barrel and nib, insert the direct-fluid-supply writing implement that the ink adsorbent is set.And in the present invention, " preceding " is meant the nib side; " back " is meant the ink barrel side.

Background technology

Past, in this direct-fluid-supply writing implement, for example in patent documentation 1, disclose " a kind of tool is characterized in that: have: host body, and peristome has tube connector and reach through hole and has filled absorbent material above ink tank; Ink tank, peristome inserts above-mentioned host body up; Nib is inserted in the above-mentioned absorbent material; And breather pipe, the reach through hole of the above-mentioned host body of break-through; By the inside and the absorbent material of above-mentioned tube connector connection ink tank, connect the inside and the atmosphere of ink tank by above-mentioned tube connector ".

The structure of above-mentioned patent documentation 1 is: even direct-fluid-supply writing implement peristome above ink tank has tube connector and breather pipe, breather pipe is connected all the time with atmosphere.Therefore, if the state that nib is kept down, then atmosphere supplies in the ink tank continuously by breather pipe, and the ink in the ink tank continues to supply with to absorbent material by tube connector simultaneously.Its result, the ink in the ink tank might escape to the outside from the nib side.

And, in the past, in patent documentation 2, disclose that " a kind of felt pen is characterized in that having: container body; The ink reception room possesses and has removably airtight ink replenishing mouth with lid, and is configurable in the rear side of said vesse main body; Ink feed flow material storage chamber has the 1st imbibition material in the place ahead that is disposed at the said vesse main body and is configured in the 2nd imbibition material at the rear of said vesse main body; Nib, the bottom is seized on both sides by the arms by above-mentioned the 1st imbibition material, and bottom end face contacts with above-mentioned the 2nd imbibition material; Dividing plate is isolated above-mentioned ink reception room and above-mentioned ink feed flow material storage chamber; And air intake duct, have with the 1st peristome of above-mentioned the 1st imbibition material butt and be configured in the 2nd peristome near the above-mentioned ink replenishing mouth the above-mentioned ink reception room, and be fixed on the aforementioned barriers; The ink that is stored in above-mentioned ink reception room carries out feed flow through the imbibing hole that is located on the aforementioned barriers to above-mentioned imbibition material ".

The direct-fluid-supply writing implement of above-mentioned patent documentation 2 has following structure: have 2 imbibition materials, make the rear end face butt of the imbibition material of the front end face of air supply pipe and body front end peristome side, the feed flow hole is connected with the rear end face of the imbibition material of ink storeroom side, that is, the front end opening in the front end opening of air supply pipe and feed flow hole is positioned on the position of separate front and back.Therefore, the very difficult openend that stops up air supply pipe of ink of imbibition material is supplied with and is immersed in utilization from the feed flow hole, (promptly being difficult to make the open end of air supply pipe in the liquid sealing state) can not stop to flow out and flowing into (Jimo water and air alternately) to the air of ink barrel from the ink of ink barrel really.Its result might make unnecessary providing ink give imbibition material, makes ink escape to the outside from the nib side.

Moreover, the direct-fluid-supply writing implement of above-mentioned patent documentation 2, structurally, nib passes the imbibition material of body front end peristome side, contact with the imbibition material of ink storeroom side, so, be difficult to set the lengthwise dimension of nib short.Therefore, the cost of nib improves, and can not provide to the user at an easy rate, and the ink outflow road from the nib rear end to the nib front end is elongated, and the ink that comes from nib flows out the property reduction, is easy to generate the fuzzy and person's handwriting interruption of person's handwriting.

And, in the past, announced that in patent documentation 3 " an a kind of writing brush shape tool has: ink barrel; The writing brush body; Front axle has ink adjustment pipe and ink conduit with concentric arrangement; The switching core is inserted in the above-mentioned ink conduit, and its rear end is inserted in above-mentioned ink barrel, and its front end and above-mentioned writing brush body rear end dispose across predetermined gap; The ink absorber of porous material, the ring that is defined between above-mentioned ink adjustment pipe and the above-mentioned ink conduit, and above-mentioned writing brush body rear end on install; Air flue is formed on above-mentioned front axle inner face and above-mentioned ink and adjusts between the tube outside, is connected with atmosphere; And ink via, be formed on above-mentioned writing brush body rear end, be connected with air flue, the density of the front end of above-mentioned ink absorber is bigger than other parts "

The structure of a writing brush shape tool of above-mentioned patent documentation 3 is for only connecting ink barrel and ink adsorbent with an ink conduit, (when supplying with ink from ink barrel in imbibition material at first) can not make air and ink rapidly alternately when beginning ink, till can writing, need long time.And, the direct-fluid-supply writing implement of above-mentioned patent documentation 3, many, the complex structure of number of components, being difficult to provides at an easy rate to the user.

The real public clear 45-18890 communique of [patent documentation 1] Japan

The real public clear 56-7504 communique of [patent documentation 2] Japan

The real public clear 60-7191 communique of [patent documentation 3] Japan

Summary of the invention

The present invention makes in order to solve the above-mentioned problem that exists in the past, and a kind of direct-fluid-supply writing implement is provided, and promptly the ink in the ink barrel can not go out from the nib side leakage, and air and ink can replace rapidly when beginning ink, can write at short notice, moreover, but simplified structure.

The present invention is a feature with following important document.

(scheme 1)

A kind of direct-fluid-supply writing implement comprises: nib; The ink adsorbent is connected the rear end of nib; Ink barrel is configured in the rear of ink adsorbent, directly ink reservoir; And communicating pipe, connect ink barrel and ink adsorbent, this direct-fluid-supply writing implement has a plurality of communicating pipes, the front end of each communicating pipe is by opening, the ink adsorbent has high density portion and is connected locational low-density portion after leaning on than this high density portion, and the front end of each communicating pipe is connected with high density portion with the rear end of nib.

(scheme 2)

As scheme 1 described direct-fluid-supply writing implement, with the inside of low-density portion and being communicated with separately of communicating pipe.

(scheme 3)

As scheme 1 described direct-fluid-supply writing implement, when when the front end of each communicating pipe has been inserted in the rear end of ink adsorbent, the front end of each communicating pipe is forwards pushed compression with the inside of ink adsorbent, so near the inside of the ink adsorbent the front end of each communicating pipe forms high density portion.

(scheme 4)

As the direct-fluid-supply writing implement of scheme 1, high density portion is by forming at the lateral surface of radially pushing the compressed ink adsorbent to the inside.

(scheme 5)

As scheme 1 described direct-fluid-supply writing implement, high density portion forms by the front end face of ink adsorbent rearward being pushed compression.

(scheme 6)

As scheme 1 described direct-fluid-supply writing implement, the ink adsorbent comprises and is set at highdensity the 1st ink adsorbent and is set at low-density the 2nd ink adsorbent that the 1st ink adsorbent constitutes high density portion; The 2nd ink adsorbent constitutes low-density portion.

(scheme 7)

As scheme 1 described direct-fluid-supply writing implement, have the ink adsorbent in capillary gap in the internal configurations of each communicating pipe, the capillary force of ink adsorbent is set for littler than the capillary force of high density portion.

(scheme 8)

As scheme 1 described direct-fluid-supply writing implement, the axial set positions of the front end of each communicating pipe is to equate mutually.

(scheme 9)

As scheme 1 described direct-fluid-supply writing implement, the front end of each communicating pipe is positioned near the nib rear end.

(scheme 10)

As scheme 1 described direct-fluid-supply writing implement, by high density portion, connecting into ink between the front end of nib rear end and each communicating pipe can circulate.

(scheme 11)

As scheme 1 described direct-fluid-supply writing implement, the front end face of ink adsorbent and rear end face are connected with atmosphere.

(scheme 12)

As scheme 1 described direct-fluid-supply writing implement, the sidewall of communicating pipe is linked mutually.

The invention effect

If the direct-fluid-supply writing implement of employing scheme 1, ink in the ink barrel can not go out from the nib side leakage, and, air and ink can promptly replace when beginning ink, and the short time promptly can write, and, even nib make progress the level etc. of a state or a tool main body, not under the situation of ink barrel supply ink, also can utilize the ink that is immersed in ink adsorbent inside just can fully write, moreover, can simplified structure.

If the direct-fluid-supply writing implement of employing scheme 2, ink in the ink barrel can not go out from the nib side leakage, and, air and ink can promptly replace when beginning ink, can write in the short time, and, even be in level etc. not under the situation of ink barrel supply ink in make progress state or a tool main body of nib, also can utilize the ink that is immersed in ink adsorbent inside just can fully write, and, do not increase the external diameter of the part of placing the ink adsorbent, can set the low-density portion of abundant volume, and, can simplified structure.

If the direct-fluid-supply writing implement of employing scheme 3 before with communicating pipe and the assembling of ink adsorbent, needn't be provided with density contrast in advance in the ink adsorbent, it is very easy to make.

If the direct-fluid-supply writing implement of employing scheme 4 needn't be provided with density contrast in advance in the ink adsorbent, it is very easy to make.

If the direct-fluid-supply writing implement of employing scheme 5 needn't be provided with density contrast in advance in the ink adsorbent, it is very easy to make.

If the direct-fluid-supply writing implement of employing scheme 6 can error freely, positively be set density contrast in the ink adsorbent.

If the direct-fluid-supply writing implement of employing scheme 7, set the external diameter of each communicating pipe and internal diameter big and be used to suppress under the situation of bending of communicating pipe, also can access the suitable liquid sealing of the front end opening of communicating pipe.

As if the direct-fluid-supply writing implement of employing scheme 8, can shorten the front end distance each other of each communicating pipe of ink adsorbent inside more; Can improve the liquid sealing of the front end opening of each communicating pipe; Can prevent further that ink from spilling to the outside.

If the direct-fluid-supply writing implement of employing scheme 9 even supply with ink from the front end opening of arbitrary communicating pipe, also can be supplied with ink rapidly on nib.Thus, when beginning ink, positively can write at short notice.

If the direct-fluid-supply writing implement of employing scheme 10, even in make progress state or a tool main body of nib is that level etc. can not be supplied with from ink barrel under the situation of ink, also can utilize the ink that the ink adsorbent inside between above-mentioned nib rear end and each front end is flooded communicating pipe fully to write.And, can be from the direct ink of glut and escape to the outside on nib of ink barrel yet.

If the direct-fluid-supply writing implement of employing scheme 11, can be with front end opening ink supplied from communicating pipe of ink adsorbent inside, successfully near the front end of communicating pipe of above-mentioned ink adsorbent inside before the ink adsorbent extreme direction move; And successfully move to the back extreme direction of ink adsorbent near the ink adsorbent inside the communicating pipe front end.

If the direct-fluid-supply writing implement of employing scheme 12 can improve the bending strength of each communicating pipe, suppress the bending of each communicating pipe.

Description of drawings

Fig. 1 is the longitudinal section of the downward state of the nib of expression the 1st embodiment of the present invention.

Fig. 2 is the A-A line sectional view of Fig. 1.

Fig. 3 is the longitudinal section of the downward state of the nib of expression the 2nd embodiment of the present invention.

Fig. 4 is the longitudinal section of the downward state of the nib of expression the 3rd embodiment of the present invention.

Fig. 5 is the longitudinal section of the downward state of the nib of expression the 4th embodiment of the present invention.

Fig. 6 is the longitudinal section of the downward state of the nib of expression the 5th embodiment of the present invention.

Fig. 7 is the longitudinal section of the downward state of the nib of expression the 6th embodiment of the present invention.

Fig. 8 is the B-B line sectional view of Fig. 7.

Fig. 9 is the cross-sectional view of expression other example communicating pipe.

Figure 10 is the cross-sectional view of expression other example communicating pipe.

Figure 11 is the longitudinal section of the downward state of the nib of expression the 7th embodiment of the present invention.

Figure 12 is the longitudinal section of the downward state of the nib of expression the 8th embodiment of the present invention.

Figure 13 is the longitudinal section of the downward state of the nib of expression the 9th embodiment of the present invention.

Figure 14 is the longitudinal section of the downward state of the nib of expression the 10th embodiment of the present invention.

Figure 15 is the longitudinal section of the downward state of the nib of expression the 11st embodiment of the present invention.

The specific embodiment

Below be illustrated as and implement preferred forms of the present invention

The direct-fluid-supply writing implement 1 of the 1st embodiment of the present invention, as necessary condition, it comprises: nib 2 with following structure (scheme 1); Ink adsorbent 3 is connected the rear end of above-mentioned nib 2; Ink barrel 7 is configured in the rear of above-mentioned ink adsorbent 3, directly ink reservoir 8; And communicating pipe 6, connect between above-mentioned ink barrel 7 and the above-mentioned ink adsorbent 3, it is characterized in that: have a plurality of above-mentioned communicating pipes 6, the front end of above-mentioned each communicating pipe 6 is by opening, above-mentioned ink adsorbent 3 has high density portion 31 and is connected low-density portion 32 on the position after leaning on than this high density portion 31, and the rear end of the front end of above-mentioned each communicating pipe 6 and above-mentioned nib 2 is connected with above-specified high density portion 31.

The communicating pipe 6 of above-mentioned direct-fluid-supply writing implement 1 (scheme 1), it has separately the providing ink in the ink barrel 7 is supplied to the interior function of ink barrel 7 to the function of the inside of ink adsorbent 3 and with outer gas.With the ink in the ink barrel 78 when ink adsorbent 3 is supplied with, if make nib 2 be in downward state, then owing to gravity, the inks 8 in the ink barrel 7 are at least by a communicating pipe 6, supply to the high density portion 31 of ink adsorbent 3, be submerged in the above-specified high density portion 31.Meanwhile, atmosphere entered in the ink barrel 7 by other communicating pipes 6.That is, under the situation of n communicating pipe 6 (n is the integer more than or equal to 2), following communicating pipe 6 carry out providing ink, carry out atmosphere other remaining communicating pipes 6 and supply with by more than 1 and (n-1) individual.

Reach a certain amount of if be immersed in the ink of the high density portion 31 in the above-mentioned ink adsorbent 3, the front end opening that has then sucked other communicating pipes 6 of above-mentioned atmosphere becomes the temporary close by the state of the liquid sealing of above-mentioned dipping ink, and the atmosphere in ink barrel 7 is supplied with and stopped.Meanwhile, utilization carry out above-mentioned providing ink communicating pipe 6, also stop from the providing ink of ink barrel 7 to ink adsorbent 3, its result, the front end opening of each communicating pipe 6 becomes the liquid sealing state and temporary close, flows out and air to ink barrel 7 in flows into (replacing of Jimo water and air) and becomes halted state from the ink of ink barrel 7.

The ink adsorbent 3 of above-mentioned direct-fluid-supply writing implement 1 (scheme 1) has: with near the front end of each communicating pipe 6 density set highly part (high density portion 31) and near the density of the part beyond the front end of each communicating pipe 6 set lowly part (low-density part 32).Therefore, can make the ink of ink adsorbent 3 inside preferentially be immersed in high density portion 31 than low-density part 32.Thus, utilize the dipping ink can make the front end opening of each communicating pipe 6 carry out liquid sealing reliably.Its result reduce to wait and when pressure ink barrel 7 in is reduced at Yin Wendu, and it is not residual in ink adsorbent 3 to be immersed in the interior ink of ink adsorbent 3, but turns back to exactly in the ink barrel 7 by communicating pipe 6 from the high density portion 31 of ink adsorbent 3.

The structure of above-mentioned direct-fluid-supply writing implement 1 (scheme 1) is that the front end of above-mentioned each communicating pipe 6 is connected with the high density portion 31 of ink adsorbent 3, so utilize the liquid sealing of the ink of the inside that is immersed in ink adsorbent 3, can be easy to close all front end openings of each communicating pipe 6.Its result can be from the ink of ink adsorbent 7 to ink adsorbent 3 excess supplies, and ink can not spill from nib 2 side direction outsides.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 1) has a plurality of (promptly more than or equal to 2) communicating pipes 6, so, carry out under the situation of providing ink at least one communicating pipe 6, carry out air other communicating pipes 6 and supply with.Therefore, when beginning ink, (supply with under the situation of ink to the ink adsorbent 3 that does not flood ink at first), carry out replacing of ink and air rapidly, can write at short notice.

Moreover, the structure that above-mentioned direct-fluid-supply writing implement 1 (scheme 1) adopts the rear end with nib 2 to be connected with high density portion 31, so, even in make progress state and a tool main body of nib is that level etc. is not supplied with under the situation of inks from ink barrel 7, also can utilize the ink in the high density portion 31 that is immersed in ink adsorbent 3 fully to write.

A kind of direct-fluid-supply writing implement of the 2nd embodiment of the present invention, as necessary condition, it comprises: nib 2 with following structure (scheme 2); Ink adsorbent 3 is connected the rear end of above-mentioned nib 2; Ink barrel 7 is configured in the rear of above-mentioned ink adsorbent 3, directly ink reservoir 8; And communicating pipe 6, connect between above-mentioned ink barrel 7 and the above-mentioned ink adsorbent 3, it is characterized in that: have a plurality of above-mentioned communicating pipes 6, the front end of above-mentioned each communicating pipe 6 is by opening, above-mentioned ink adsorbent 3 has high density portion 31 and is connected low-density portion 32 on the position after leaning on than this high density portion 31, and the rear end of the front end of above-mentioned each communicating pipe 6 and above-mentioned nib 2 is connected with above-specified high density portion 31.

The communicating pipe 6 of above-mentioned direct-fluid-supply writing implement 1 (scheme 2), it has the providing ink in the ink barrel 7 separately to the function of the inside of ink adsorbent 3 and the function that atmosphere is supplied with in ink barrel 7.With the ink in the ink barrel 78 when ink adsorbent 3 is supplied with, if make nib 2 be in downward state, then owing to gravity, the inks 8 in the ink barrel 7 are at least by a communicating pipe 6, high density portion 31 to ink adsorbent 3 supplies with, and is submerged in above-specified high density portion 31.Meanwhile, atmosphere entered in the ink barrel 7 by other communicating pipes 6.That is, under the situation of n communicating pipe 6 (n is the integer more than or equal to 2), following communicating pipe 6 carry out providing ink, supply with by carrying out atmosphere remaining communicating pipe 6 by more than 1 and (n-1) individual.

Reach a certain amount of as if the ink in the high density portion 31 that is immersed in above-mentioned ink adsorbent 3, the front end opening that then sucks other communicating pipes 6 of above-mentioned atmosphere becomes the temporary close by the state of the liquid sealing of above-mentioned dipping ink, and the atmosphere in ink barrel 7 is supplied with and stopped.Meanwhile, carry out above-mentioned providing ink communicating pipe 6, also stop from the providing ink of ink barrel 7 to ink adsorbent 3, its result, the front end opening of each communicating pipe 6 becomes the liquid sealing state and temporary close, flows out and air to ink barrel 7 in flows into (replacing of Jimo water and air) and becomes halted state from the ink of ink barrel 7.

The ink adsorbent 3 of above-mentioned direct-fluid-supply writing implement 1 (scheme 2) has: near the density the front end of each communicating pipe 6 is set highly part (high density portion 31) and near the density of the part beyond the front end of each communicating pipe 6 is set lowly part (low-density part 32).Therefore, can make the ink of ink adsorbent 3 inside preferentially be immersed in high density portion 31 than low-density part 32.Thus, utilize the dipping ink, can make the front end opening of each communicating pipe 6 carry out liquid sealing reliably.Its result, reduce to wait and when making pressure minimizing ink barrel 7 at Yin Wendu, the ink that is immersed in the ink adsorbent 3 can be not residual in ink adsorbent 3, but turn back to exactly in the ink barrel 7 by communicating pipe 6 from the high density portion 31 of ink adsorbent 3.

The structure of above-mentioned direct-fluid-supply writing implement 1 (scheme 2) is, the front end of above-mentioned each communicating pipe 6 is connected with the high density portion 31 of ink adsorbent 3, so utilize the liquid sealing of the ink that is immersed in ink adsorbent 3 inside, can be easy to close all front end openings of each communicating pipe 6.Its result can be from the ink of ink adsorbent 7 to ink adsorbent 3 gluts, and ink can not spill from nib 2 side direction outsides.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 2) has a plurality of (promptly more than or equal to 2) communicating pipes 6, so, carry out under the situation of providing ink at least one communicating pipe 6, carry out air other communicating pipes 6 and supply with.Therefore, when beginning ink, (supply with under the situation of ink to the ink adsorbent 3 that does not flood ink at first), carry out replacing of ink and air rapidly, can write at short notice.

Moreover, the structure that above-mentioned direct-fluid-supply writing implement 1 (scheme 2) employing makes the rear end of nib 2 be connected with high density portion 31, so, even in make progress state and a tool main body of nib is that level etc. is not supplied with under the situation of inks from ink barrel 7, also can utilize the ink in the high density portion 31 that is immersed in ink adsorbent 3 fully to write.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 2) adopts the structure make the inside of running through above-mentioned low-density portion 32 above-mentioned each communicating pipe 6, so do not increase the external diameter of the part of accommodating ink adsorbent 3, can set the low-density portion 32 of abundant volume.If do not run through each communicating pipe 6 low-density portion 32 inside and with situation that high density portion 31 is connected under, the external diameter of accommodating the part of ink adsorbent 3 increases, may be difficult to grip a tool main body, perhaps the volume of low-density portion 32 reduces, and can not fully absorb the unnecessary ink from ink barrel 7.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), preferably when the front end of each communicating pipe 6 is inserted in the rear end of ink adsorbent 3, the front end of above-mentioned each communicating pipe 6 is forwards pushed compression with the inside of ink adsorbent 3, near the inside of the ink adsorbent 3 the front end of each communicating pipe 6 forms above-specified high density portion 31 (schemes 3) thus.

Above-mentioned direct-fluid-supply writing implement 1 (scheme 3) is forwards to insert the front end of each communicating pipe 6 from the rear end of above-mentioned ink adsorbent 3, the density contrast (being the high density portion 31 and the low-density portion 32 of ink adsorbent 3) that compression forms ink adsorbent 3 is forwards pushed in the inside of ink adsorbent 3, so, before being assembled, communicating pipe 6 and ink adsorbent 3 do not need in ink adsorbent 3, density contrast to be set in advance, it is very easy to make, and, can suppress the generation of the bad connection of the front end of each communicating pipe 6 and high density portion 31.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), above-specified high density portion 31 preferably pushes compression (scheme 4) with the lateral surface of ink adsorbent 3 to radially inner side and forms.Thus, needn't in ink adsorbent 3 density contrast be set in advance, it is very easy to make.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), above-specified high density portion 31 preferably rearward pushes compression (scheme 5) to the front end face of ink adsorbent 3 and forms.Thus, do not need in ink adsorbent 3 density contrast to be set in advance, it is very easy to make.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), above-mentioned ink adsorbent 3 comprises and is set at highdensity the 1st ink adsorbent and is set at low-density the 2nd ink adsorbent that the 1st ink adsorbent constitutes above-specified high density portion 31; The 2nd ink adsorbent constitutes above-mentioned low-density portion 32 (schemes 6).Thus, in ink adsorbent 3, can set high density portion 31 and low-density portion 32 (promptly ink adsorbent 3 being set density contrast) really in error free ground.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), preferably have the ink adsorbent 63 in capillary gap in the internal configurations of above-mentioned each communicating pipe 6, the capillary force of above-mentioned ink adsorbent 63 is set at capillary force little (scheme 7) than above-specified high density portion 31.

Utilize above-mentioned direct-fluid-supply writing implement 1 (scheme 7),, also can access the suitable liquid sealing of the front end opening of communicating pipe 6 even under the situation of setting the external diameter of each communicating pipe 6 bigger for the bending of controlling communicating pipe 6.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), preferably the axial location of the front end of above-mentioned each communicating pipe 6 is set at and equates (scheme 8) mutually.

And, the structure that above-mentioned direct-fluid-supply writing implement (scheme 8) equates mutually owing to the axial location that is the front end of above-mentioned each communicating pipe 6 is set to (front end that is each communicating pipe 6 does not separate front and back mutually) is so shorten the front end distance each other of each communicating pipe 6 of ink adsorbent 3 inside more; Improve the liquid sealing of the front end opening of each communicating pipe 6; Can prevent further that ink from spilling to the outside.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), the front end of preferably above-mentioned each communicating pipe 6 is positioned near nib 2 rear ends (scheme 9).

Above-mentioned direct-fluid-supply writing implement 1 (scheme 9) utilizes the front end of each communicating pipe 6 to be positioned near the structure in nib 2 rear ends, supplies with ink from the front end opening of arbitrary communicating pipe 6, all can supply with inks to nib 2 rapidly.Thus, when beginning ink, can write at short notice.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1),, the rear end of above-mentioned nib 2 and the front end of above-mentioned each communicating pipe 6 are connected to ink can circulate (scheme 10) preferably by above-specified high density portion 31.

In the above-mentioned direct-fluid-supply writing implement 1 (scheme 10), because the rear end and the rear end of above-mentioned each communicating pipe 6 of above-mentioned nib 2 directly are not connected, so, in the rear end of nib 2 and the inside of the ink adsorbent 3 between the front end of each communicating pipe 6, flooded a certain amount of ink at least.Thus, even do not supply with under the situation of ink from ink barrel 7 in the make progress level etc. of a state or a tool main body of nib, the ink that also can utilize ink adsorbent 3 inside between above-mentioned nib 2 rear ends and the front end of each communicating pipe 6 to flood can fully be write.And, can be from the direct ink of excess supply and escape to the outside on nib 2 of ink barrel 7.

In above-mentioned direct-fluid-supply writing implement (scheme 1), the front end face of preferably above-mentioned ink adsorbent 3 and rear end face be connected with atmosphere (scheme 11).

Above-mentioned direct-fluid-supply writing implement 1 (scheme 11) can make the air of ink adsorbent 3 inside overflow from the front end face of ink adsorbent 3 and the rear end face of ink adsorbent 3.Thus, will can be successfully move from the front end opening ink supplied of communicating pipe 6 of ink adsorbent 3 inside near the preceding extreme direction to ink adsorbent 3 front end of communicating pipe 6 of above-mentioned ink adsorbent 3 inside; And successfully move to the back extreme direction of ink adsorbent 3 near the inside of the ink adsorbent 3 the front end of communicating pipe 6.Especially, rear end face by ink adsorbent 3 is connected with atmosphere, when the pressure rising that makes owing to the temperature rising in the ink barrel 7, the ink that is extruded in the ink barrel 7 successfully from the front end of communicating pipe 6 by near the front end of the communicating pipe 6 of ink adsorbent 3 and rearward move, be immersed in the rear of ink adsorbent 3, prevent that ink from spilling to the outside, on the other hand, when pressure in the ink barrel 7 being reduced owing to temperature reduction etc., make the dipping ink at the rear of ink adsorbent 3, near the front end of communicating pipe 6 by ink adsorbent 3 inside, can be from the front end opening of communicating pipe 6 through in communicating pipe 6 and turn back in the ink barrel 7.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 1), preferably the sidewall with above-mentioned communicating pipe 6 links (scheme 12) mutually.Thus, can improve the bending strength of each communicating pipe 6, and suppress the bending of each communicating pipe 6.

The direct-fluid-supply writing implement 1 of the present invention's the 3rd embodiment, as necessary condition, it comprises: nib 2 with following structure (scheme 13); Ink adsorbent 3 is connected the rear end of above-mentioned nib 2; Ink barrel 7 is configured in the rear of above-mentioned ink adsorbent 3, directly ink reservoir; And communicating pipe 6, connect between above-mentioned ink barrel 7 and the above-mentioned ink adsorbent 3, it is characterized in that: have a plurality of above-mentioned communicating pipes 6, the front end of above-mentioned each communicating pipe 6 is by opening, the front end of above-mentioned each communicating pipe 6 is positioned at ink adsorbent 3 inside, and the axial location of the front end of above-mentioned each communicating pipe 6 is set for mutually and equated.

The communicating pipe 6 of above-mentioned direct-fluid-supply writing implement 1 (scheme 13), it has the ink 8 in the ink barrel 7 separately to the function of the internal feed of ink adsorbent 3 and the function that atmosphere is supplied with in ink barrel 7.With the ink in the ink barrel 78 when Heisui River adsorbent 3 is supplied with, if make nib 2 be in downward state, then because gravity, the inks 8 in the ink barrel 7 are supplied with to ink adsorbent 3 at least by a communicating pipe 6, are submerged in ink adsorbent 3 inside.Meanwhile, atmosphere entered in the ink barrel 7 by other communicating pipes 6.That is, under the situation of n communicating pipe 6 (n is the integer more than or equal to 2), more than 1 and (n-1) individually following communicating pipe 6 carry out providing ink, carry out atmosphere remaining communicating pipe 6 and supply with.

If the ink that is immersed in the inside of above-mentioned ink adsorbent 3 reaches a certain amount of, the front end opening that has then sucked other communicating pipes 6 of above-mentioned atmosphere becomes the temporary close by the state of the liquid sealing of above-mentioned dipping ink, and the atmosphere supply stops to ink barrel 7 in.Meanwhile, by also stopping of the communicating pipe 6 of carrying out above-mentioned providing ink from the providing ink of ink barrel 7 to ink adsorbent 3, its result, the front end opening of each communicating pipe 6 becomes the liquid sealing state and temporary close, flows out and flow into (Jimo water and air alternately) to the air of ink barrel 7 from the ink of ink barrel 7 to become halted state.

The structure of above-mentioned direct-fluid-supply writing implement 1 (scheme 13) is that the front end of above-mentioned each communicating pipe 6 is positioned at the inside of ink adsorbent 3, so utilize the liquid sealing of the ink that is immersed in ink adsorbent 3 inside, can easily close all front end openings of each communicating pipe 6.Its result can be from the ink of ink barrel 7 to ink adsorbent 3 excess supplies, and ink can not spill from nib 2 side direction outsides.

And, the structure of above-mentioned direct-fluid-supply writing implement (scheme 13) is, the axial location of the front end of above-mentioned each communicating pipe 6 is configured to equate mutually (front end that is each communicating pipe 6 does not separate front and back mutually), so, shorten the mutual distance of front end of each communicating pipe 6 of the inside of ink adsorbent 3 more, improve the liquid sealing of the front end opening of each communicating pipe 6, can prevent further that ink from escaping to the outside.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 13) has a plurality of (promptly more than or equal to 2) communicating pipes 6, carries out under the situation of providing ink at least one communicating pipe 6 thus, carries out air other communicating pipes 6 and supplies with.Therefore, when beginning ink, (supply with under the situation of ink to the ink adsorbent 3 that does not flood ink at first), carry out replacing of ink and air rapidly, can write at short notice.

A kind of direct-fluid-supply writing implement of the 4th embodiment of the present invention, as necessary condition, it comprises: nib 2 with following structure (scheme 14); Ink adsorbent 3 is connected the rear end of above-mentioned nib 2; Ink barrel 7 is configured in the rear of above-mentioned ink adsorbent 3, directly ink reservoir 8; And communicating pipe 6, connect between above-mentioned ink barrel 7 and the above-mentioned ink adsorbent 3, it is characterized in that: have a plurality of above-mentioned communicating pipes 6, the front end of above-mentioned each communicating pipe 6 is by opening, and the front end of above-mentioned each communicating pipe 6 is positioned near nib 2 rear ends of ink adsorbent 3 inside.

The communicating pipe 6 of above-mentioned direct-fluid-supply writing implement 1 (scheme 14), it has the ink in the ink barrel 7 separately to the function of the internal feed of ink adsorbent 3 and the function that atmosphere is supplied with in ink barrel 7.With the ink in the ink barrel 78 when ink adsorbent 3 is supplied with, if make nib 2 be in downward state, then because gravity, the inks 8 in the ink barrel 7 by a communicating pipe 6, supply to ink adsorbent 3 at least, are submerged in the inside of ink adsorbent 3.Meanwhile, atmosphere entered in the ink barrel 7 by other communicating pipes 6.That is, under the situation of n communicating pipe 6 (n is the integer more than or equal to 2), more than 1 and (n-1) individually following communicating pipe 6 carry out providing ink, supply with by carrying out atmosphere remaining communicating pipe 6.

Reach a certain amount of if be immersed in the ink of the inside of above-mentioned ink adsorbent 3, the front end opening that has then sucked other communicating pipes 6 of above-mentioned atmosphere becomes the temporary close by the liquid sealing state of above-mentioned dipping ink, and atmosphere is supplied with and stopped in ink barrel 7.Meanwhile, by the communicating pipe 6 of supplying with ink, also stop from the providing ink of ink barrel 7 to ink adsorbent 3, its result, the front end opening of each communicating pipe 6 becomes the liquid sealing state and temporary close, flows out and flow into (Jimo water and air alternately) to the air of ink barrel 7 from the ink of ink barrel 7 to become halted state.

The structure of above-mentioned direct-fluid-supply writing implement 1 (scheme 14) is, the front end of above-mentioned each communicating pipe 6 is positioned at the inside of ink adsorbent 3, so utilize the liquid sealing of the ink of the inside that is immersed in ink adsorbent 3, can easily close all front end openings of each communicating pipe 6.Its result can be from the ink of ink barrel 7 to ink adsorbent 3 excess supplies, and ink can not escape to the outside from nib 2 sides.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 14) has a plurality of (promptly more than or equal to 2) communicating pipes 6, carries out under the situation of providing ink at least one communicating pipe 6 thus, carries out air other communicating pipes 6 and supplies with.Therefore, when beginning ink, (supply with under the situation of ink to the ink adsorbent 3 that does not flood ink at first), carry out replacing of ink and air rapidly, can write at short notice.

Moreover above-mentioned direct-fluid-supply writing implement 1 (scheme 14) utilizes the front end of each communicating pipe 6 to be positioned near the structure in nib 2 rear ends, supplies with ink from the front end opening of arbitrary communicating pipe 6, all can make ink supply to nib 2 rapidly.Thus, when beginning ink, can positively write at short notice.

The direct-fluid-supply writing implement 1 of the present invention's the 5th embodiment, as necessary condition, it comprises: nib 2 with following structure (scheme 15); Ink adsorbent 3 is connected the rear end of above-mentioned nib 2; Ink barrel 7 is configured in the rear of above-mentioned ink adsorbent 3, directly ink reservoir; And communicating pipe 6, connect between above-mentioned ink barrel 7 and the above-mentioned ink adsorbent 3, it is characterized in that: have a plurality of above-mentioned communicating pipes 6, the front end of above-mentioned each communicating pipe 6 is by opening, the front end of above-mentioned each communicating pipe 6 is positioned near the rear end of nib 2 of ink adsorbent 3 inside, and the axial location of the front end of above-mentioned each communicating pipe 6 is set for mutually and equated.

The communicating pipe 6 of above-mentioned direct-fluid-supply writing implement 1 (scheme 15), it has the ink 8 in the ink barrel 7 separately to the function of the internal feed of ink adsorbent 3 and the function that atmosphere is supplied with in ink barrel 7.With the ink in the ink barrel 78 when Heisui River adsorbent 3 is supplied with, if make nib 2 be in downward state, then because gravity, the inks 8 in the ink barrel 7 by a communicating pipe 6, supply to ink adsorbent 3 at least, are submerged in ink adsorbent 3 inside.Meanwhile, atmosphere entered in the ink barrel 7 by other communicating pipes 6.That is, under the situation of n communicating pipe 6 (n is the integer more than or equal to 2), more than 1 and (n-1) individually following communicating pipe 6 carry out providing ink, carry out atmosphere remaining communicating pipe 6 and supply with.

If the ink that is immersed in the inside of above-mentioned ink adsorbent 3 reaches a certain amount of, the front end opening that has then sucked other communicating pipes 6 of above-mentioned atmosphere becomes the temporary close by the state of the liquid sealing of above-mentioned dipping ink, and the atmosphere supply to ink barrel 7 in stops.Meanwhile, by the communicating pipe 6 of carrying out above-mentioned providing ink, also stop from the providing ink of ink barrel 7 to ink adsorbent 3, its result, the front end opening of each communicating pipe 6 becomes the liquid sealing state and temporary close, flows out and flow into (Jimo water and air alternately) to the air of ink barrel 7 from the ink of ink barrel 7 to become halted state.

The structure of above-mentioned direct-fluid-supply writing implement 1 (scheme 15) is that the front end of above-mentioned each communicating pipe 6 is positioned at ink adsorbent 3 inside, so utilize the liquid sealing of the ink of the inside that is immersed in ink adsorbent 3, can easily close all front end openings of each communicating pipe 6.Its result can be from the ink of ink barrel 7 to ink adsorbent 3 excess supplies, and ink can not spill from nib 2 side direction outsides.

And, the structure of above-mentioned direct-fluid-supply writing implement (scheme 15) is: the axial location of the front end of above-mentioned each communicating pipe 6 is configured to equate mutually (front end that is each communicating pipe 6 does not separate front and back mutually), therefore, shorten the mutual distance of front end separately of communicating pipe 6 of the inside of ink adsorbent 3 more, improve the liquid sealing of the front end opening of each communicating pipe 6, can prevent further that ink from escaping to the outside.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 15) has a plurality of (promptly more than or equal to 2) communicating pipes 6, carries out under the situation of providing ink at least one communicating pipe 6 thus, carries out air other communicating pipes 6 and supplies with.Therefore, when beginning ink, (supply with under the situation of ink to the ink adsorbent 3 that does not flood ink at first), carry out replacing of ink and air rapidly, can write at short notice.

Moreover above-mentioned direct-fluid-supply writing implement 1 (scheme 15) utilizes the front end of each communicating pipe 6 to be positioned near the structure in nib 2 rear ends, supplies with ink from the front end opening of arbitrary communicating pipe 6, all can make ink supply to nib 2 rapidly.Thus, when beginning ink, can positively write at short notice.

The direct-fluid-supply writing implement 1 of the 6th embodiment of the present invention, as necessary condition, it comprises: nib 2 with following structure (scheme 16); Ink adsorbent 3 is connected the rear end of above-mentioned nib 2; Ink barrel 7, be configured in the rear of above-mentioned ink adsorbent 3, direct ink reservoir, and communicating pipe 6, connect between above-mentioned ink barrel 7 and the above-mentioned ink adsorbent 3, it is characterized in that: have a plurality of above-mentioned communicating pipes 6, the front end of above-mentioned each communicating pipe 6 is by opening, the front end of above-mentioned each communicating pipe 6 is positioned at the place ahead, inside of above-mentioned ink adsorbent 3, and the rear end of above-mentioned nib is positioned at the place ahead, inside of above-mentioned ink adsorbent 3.

The communicating pipe 6 of above-mentioned direct-fluid-supply writing implement 1 (scheme 16), it has separately the inks 8 in the ink barrel 7 are supplied to the function in ink adsorbent 3 inner the place aheads and the function that atmosphere is supplied with in ink barrel 7.When the ink in the ink barrel 78 is supplied to ink adsorbent 3, if make nib 2 be in downward state, then owing to gravity, the inks 8 in the ink barrel 7 are at least by a communicating pipe 6, supply to the place ahead, inside of ink adsorbent 3, be immersed in the place ahead, inside of ink adsorbent 3.Meanwhile, atmosphere entered in the ink barrel 7 by other communicating pipes 6.That is, under the situation of n communicating pipe 6 (n is the integer more than or equal to 2),, supply with by carrying out atmosphere remaining communicating pipe 6 by more than 1 and (n-1) individually carry out providing ink with lower communicating tube 6.

Reach a certain amount of as if the ink in the place ahead, inside that is immersed in above-mentioned ink adsorbent 3, the front end opening that has then sucked other communicating pipes 6 of above-mentioned atmosphere becomes the temporary close by the state of the liquid sealing of above-mentioned dipping ink, and the atmosphere in ink barrel 7 is supplied with and stopped.Meanwhile, carry out above-mentioned providing ink communicating pipe 6, also stop from the providing ink of ink barrel 7 to ink adsorbent 3, its result, the front end opening of each communicating pipe 6 becomes the liquid sealing state and temporary close, flows out and flow into (Jimo water and air alternately) to the air of ink barrel 7 from the ink of ink barrel 7 to become halted state.

The structure of above-mentioned direct-fluid-supply writing implement 1 (scheme 16) is, all front ends of each above-mentioned communicating pipe 6 are positioned at the place ahead, inside of ink adsorbent 3, so utilize the liquid sealing of the ink that the place ahead, inside of ink adsorbent 3 flooded, can be easy to close all front end openings of each communicating pipe 6.Its result can be from the ink of ink barrel 7 to ink adsorbent 3 excess supplies, and ink can not spill from nib 2 side direction outsides.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 16) because the rear end of nib 2 is positioned at the place ahead, inside of ink adsorbent 3, can be set the whole lengthwise dimension of nib 2 very short.Its result, through communicating pipe 6, the place ahead, inside by ink adsorbent 3 supplies to after nib 2 rear ends, supplies to above-mentioned nib 2 front ends rapidly from the ink of the abundance of ink barrel 7, so do not have person's handwriting interruption and person's handwriting fuzzy, obtain slick and sly ink and flow out property from nib 2.And, owing to can set the longitudinal size of nib 2 integral body short, so, the cost of nib 2 also can be suppressed at an easy rate.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 16) has a plurality of (promptly more than or equal to 2) communicating pipes 6, carries out under the situation of providing ink at least one communicating pipe 6 thus, carries out air other communicating pipes 6 and supplies with.Therefore, when beginning ink, (supply with under the situation of ink to the ink adsorbent 3 that does not flood ink at first), carry out replacing of ink and air rapidly, can write at short notice.

And, above-mentioned direct-fluid-supply writing implement 1 (scheme 16), when pressure in the ink barrel 7 being raise owing to temperature rising etc., the unnecessary ink of extruding in the ink barrel 7 supplies to the place ahead, inside of ink adsorbent 3 through above-mentioned communicating pipe 6, and, supply to the rear, inside of ink adsorbent 3 and temporarily flooded.On the other hand, when pressure in the ink barrel 7 being reduced, be immersed in the inside the place ahead of ink by ink adsorbent 3 at the rear, inside of ink adsorbent 3, turn back in the ink barrel 7 through communicating pipe 6 owing to temperature reduction etc.

Promptly, utilize the front end of each communicating pipe 6 to be positioned at the anterior inboard structure of ink adsorbent 3, during pressure change ink barrel 7 in, can make ink barrel 7 interior unnecessary inks suitably temporarily absorb in the ink adsorbent 3, then, can suitably turn back in the ink barrel 7 by the ink that this is unnecessary.Its result can prevent fully that ink from escaping to the outside.

The communicating pipe 6 of above-mentioned direct-fluid-supply writing implement 1 (scheme 17), it has the ink 8 in the ink barrel 7 separately to the function of the internal feed of ink adsorbent 3 and the function that atmosphere is supplied with in ink barrel 7.With the ink in the ink barrel 78 when Heisui River adsorbent 3 is supplied with, if make nib 2 be in downward state, then because gravity, the inks 8 in the ink barrel 7 by a communicating pipe 6, supply to ink adsorbent 3 at least, are submerged in ink adsorbent 3 inside.Meanwhile, atmosphere entered in the ink barrel 7 by other communicating pipes 6.That is, under the situation of n communicating pipe 6 (n is the integer more than or equal to 2), more than 1 and (n-1) individually following communicating pipe 6 carry out providing ink, carry out atmosphere remaining communicating pipe 6 and supply with.

The structure of above-mentioned direct-fluid-supply writing implement 1 (scheme 17) is that the front end of above-mentioned each communicating pipe 6 is positioned at the inside of ink adsorbent 3, so utilize the liquid sealing of the ink that is immersed in ink adsorbent 3 inside, can easily close all front end openings of each communicating pipe 6.Its result can be from the ink of ink barrel 7 to ink adsorbent 3 excess supplies, and ink can not spill from nib 2 side direction outsides.

And above-mentioned direct-fluid-supply writing implement 1 (scheme 17) has a plurality of (promptly more than or equal to 2) communicating pipes 6, carries out under the situation of providing ink at least one communicating pipe 6 thus, carries out air other communicating pipes 6 and supplies with.Therefore, when beginning ink, (supply with under the situation of ink to the ink adsorbent 3 that does not flood ink at first), carry out replacing of ink and air rapidly, can write at short notice.

The direct-fluid-supply writing implement 1 of the 7th embodiment of the present invention, it comprises: nib 2; Ink adsorbent 3 is connected the rear end of above-mentioned nib 2; Ink barrel 7 is configured in the rear of above-mentioned ink adsorbent 3, and directly ink reservoir, and communicating pipe 6 connects between above-mentioned ink barrel 7 and the above-mentioned ink adsorbent 3.In addition, the above-mentioned direct-fluid-supply writing implement 1 of the 7th embodiment of the present invention has a plurality of above-mentioned communicating pipes 6, and the front end of above-mentioned each communicating pipe 6 is by opening, and the front end of above-mentioned each communicating pipe 6 is positioned at the inside of above-mentioned ink adsorbent 3.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17),, ink can circulate (scheme 18) will be connected between the rear end of above-mentioned nib 2 and the front end of above-mentioned each communicating pipe 6 preferably by above-mentioned ink adsorbent 3.

The rear end and the front end of above-mentioned each communicating pipe 6 of the above-mentioned nib 2 of above-mentioned direct-fluid-supply writing implement 1 (scheme 18) directly are not connected, so, flooding a certain amount of ink in the rear end of nib 2 and ink adsorbent 3 inside between the front end of each communicating pipe 6 at least.Thus, even do not supply with under the situation of ink from ink barrel 7, still can utilize the ink that ink adsorbent 3 inside between the above-mentioned nib front end of each communicating pipe 6 of 2 rear ends are flooded fully to write in the make progress level etc. of a state and a tool main body of nib.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), preferably the front end with above-mentioned each communicating pipe 6 forwards inserts from the rear end of ink adsorbent 3, compression is forwards pushed in inside to ink adsorbent 3, thus near the density of the ink adsorbent 3 the front end of above-mentioned each communicating pipe 6 is set at the density height (scheme 18) than near the ink adsorbent 3 of the part beyond the front end of above-mentioned each communicating pipe 6.

Above-mentioned direct-fluid-supply writing implement 1 (scheme 19), ink adsorbent 3 has: with near the front end of each communicating pipe 6 density set highly part (high density portion 31) and near the density of the part beyond the front end of each communicating pipe 6 set lowly part (low-density portion 32).Therefore, the ink of ink adsorbent 3 inside preferentially can be impregnated in the high density portion 31 than low-density part 32.Therefore, utilize the dipping ink can make the front end opening of each communicating pipe 6 carry out liquid sealing reliably.Its result, when Yin Wendu reduces etc. former thereby make pressure reduction ink barrel 7 in, the ink that is immersed in the ink adsorbent 3 can not remain in the ink adsorbent 3, but turns back to exactly in the ink barrel 7 by communicating pipe 6 from the high density portion 31 of ink adsorbent 3.

And, above-mentioned direct-fluid-supply writing implement 1 (scheme 19), forwards insert the front end of each communicating pipe 6 from the rear end of above-mentioned ink adsorbent 3, compression is forwards pushed in the inside of ink adsorbent 3, form the density contrast (being the high density portion 31 and the low-density portion 32 of ink adsorbent 3) of ink adsorbent 3 thus, so before communicating pipe 6 and ink adsorbent 3 were assembled, it was very easy the density contrast manufacturing to be set in ink adsorbent 3 in advance.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 19), preferably the front end with above-mentioned each communicating pipe 6 forms sharp shape (scheme 20).

Above-mentioned direct-fluid-supply writing implement 1 (scheme 20), because the front end of each communicating pipe 6 is a sharp shape, so, can very successfully prick saturating the insertion each communicating pipe 6 from the rear end of ink adsorbent 3.Its result needn't be provided with the hole of communicating pipe inserting usefulness in advance in ink adsorbent 3, can simplify assembling procedure.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 20), the front end of preferably above-mentioned each communicating pipe 6 constitutes (scheme 21) by the inclined cut face 61 that comprises its front end opening.

Utilization comprises that the inclined cut face 61 of its front end opening constitutes the sharp shape of the front end of above-mentioned each communicating pipe 6, can further improve each communicating pipe 6 thus and prick the saturating property inserted to ink adsorbent 3, and, can increase the aperture area of each front end opening communicating pipes 6, can carry out rapidly supplying with to the internal ink of ink adsorbent 3.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), preferably from the front end of above-mentioned ink adsorbent 3 play that the front end of above-mentioned each communicating pipe 6 ends axial apart from S1, S2, be set at more than 3% (scheme 22) below 50% of axial length L of above-mentioned ink adsorbent 3 integral body.

Press in ink barrel 7 when rising, above-mentioned direct-fluid-supply writing implement 1 (scheme 22) can not spill ink from the front end of ink adsorbent 3, and it is fuzzy person's handwriting interruption or person's handwriting can not to occur, obtains flowing out property from the sufficient ink of nib 2 front ends.If, play from the front end of ink adsorbent 3 the not enough ink adsorbent of axial distance S1, S2 3 integral body that the front end that is positioned at each communicating pipe 6 of its rear ends axial length 3%, press in ink barrel 7 when rising, ink may spill from the front end of ink adsorbent 3.And, if, from the front end of ink adsorbent 3 play axial distance S1, S2 that the front end of each communicating pipe 6 that is positioned at its rear ends surpass ink adsorbent 3 integral body axial length 50%, it is elongated to play the distance that nib 2 front ends end from the front end of each communicating pipe 6, may hinder ink to flow out property.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), preferably play axial distance S1, the S2 that the front end of above-mentioned each communicating pipe 6 ends and be set at equal (scheme 23) from the front end of above-mentioned ink adsorbent 3.

Above-mentioned direct-fluid-supply writing implement 1 (scheme 23) further shorten ink adsorbent 3 inside each communicating pipe 6 front end mutual spacing from, improve the liquid sealing of the front end opening of each communicating pipe 6, can prevent further that ink from escaping to the outside.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), axial distance T1, the T2 of the rear end of the front end of preferably above-mentioned each communicating pipe 6 and above-mentioned nib 2 is set at 10mm (millimeter) with interior (scheme 24).

Above-mentioned direct-fluid-supply writing implement 1 (scheme 24) front end from each communicating pipe 6 when beginning ink is promptly supplied with ink to the rear end of nib 2, can write at short notice.If axial distance T1, the T2 of the rear end of the front end of each communicating pipe 6 and nib 2 surpass 10mm, the distance of the rear end of the front end of each communicating pipe 6 and nib 2 increases, can not supply with ink from the front end of each communicating pipe 6 rapidly to the rear end of nib 2, when beginning ink, till can writing, may need the suitable time.And the front end of above-mentioned each communicating pipe 6 can be positioned at the place ahead than the rear end of nib 2; Perhaps can be positioned at the rear than the rear end of nib 2.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), the interval between the rear end of the front end of preferably above-mentioned each communicating pipe 6 and above-mentioned nib 2 is set at equal (scheme 25).

Above-mentioned direct-fluid-supply writing implement 1 (scheme 25) under the situation that the ink of ink barrel 7 was supplied with to the rear end of nib from the front end opening of arbitrary communicating pipe 6 during a plurality of communicating pipes 6, also can be write at certain hour when beginning ink like clockwork.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), the front end face of preferably above-mentioned ink adsorbent 3 and rear end face be connected with atmosphere (scheme 26).

Above-mentioned direct-fluid-supply writing implement 1 (scheme 26) can be overflowed the air of the inside of ink adsorbent 3 from the front end face of ink adsorbent 3 and the rear end face of ink adsorbent 3.Thus, can make from the front end opening ink supplied of communicating pipe 6 of the inside of ink adsorbent 3 successfully near the front end of communicating pipe 6 of above-mentioned ink adsorbent 3 inside before the ink adsorbent extreme direction move; And successfully move to the back extreme direction of ink adsorbent 3 near ink adsorbent 3 inside the front end of communicating pipe 6.Especially, because the rear end face and the atmosphere of ink adsorbent 3 are connected, so, when making the pressure rising ink barrel 7 in when rising owing to temperature, the ink of from ink barrel 7, extruding successfully from the front end of communicating pipe 6 by near the front end of the communicating pipe 6 of ink adsorbent 3 and rearward move, be immersed in the rear of ink adsorbent 3, prevent that ink from spilling to the outside, on the other hand, when pressure in the ink barrel 7 being reduced owing to temperature reduction etc., with the dipping ink at ink adsorbent 3 rears, near the front end of the communicating pipe 6 by ink adsorbent 3 inside, from the front end opening of communicating pipe 6 through in communicating pipe 6 and can turn back in the ink barrel 7.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), preferably has the ink adsorbent 63 (scheme 27) in capillary gap in the internal configurations of above-mentioned each communicating pipe 6.

Utilize above-mentioned direct-fluid-supply writing implement 1 (scheme 27), under the situation of setting external diameter and the internal diameter of each communicating pipe 6 bigger for the bending that suppresses communicating pipe 6, also can access the suitable liquid sealing of front end opening of communicating pipe 6.

In above-mentioned direct-fluid-supply writing implement 1 (scheme 13～17), preferably each sidewall with above-mentioned communicating pipe 6 links (scheme 28) mutually.

Utilize above-mentioned direct-fluid-supply writing implement 1 (scheme 28), improve the bending strength of each communicating pipe 6, can suppress the bending of each communicating pipe 6.

(communicating pipe)

And, in the present invention,, preferably make with synthetic resin or metal owing to above-mentioned communicating pipe 6 have certain rigid.And the cross section face shape of the outer peripheral face of above-mentioned communicating pipe 6 and inner peripheral surface for example also can be any of circular, oval or polygonals such as 3 dihedrals, 4 dihedrals etc.And the quantity of above-mentioned communicating pipe 6 is that a plurality of (promptly more than or equal to 2) get final product, and for example, can enumerate 2,3,4,5 or 6 etc.And, extend on above-mentioned communicating pipes 6 each comfortable fore-and-aft directions and be provided with, in its inside separately circulation flow path 62 is set along running through on the fore-and-aft direction.And, above-mentioned a plurality of communicating pipe 6 is that portion's structure that forms independently a plurality of circulation flow paths 62 arranged side by side gets final product within it, for example, can enumerate the structure (referring to figs. 1 through Fig. 6) of radially isolating each communicating pipe 6, the structure that the sidewall of each communicating pipe 6 interlinks (with reference to Fig. 7 to Fig. 9) is perhaps in structure (with reference to Figure 10) of the communicating pipe 6b of the internal configurations minor diameter of large diameter communicating pipe 6a etc.And it is on the same circumference at center that the front end of preferably above-mentioned each communicating pipe 6 is positioned at nib 2 by equal intervals.And the front end of above-mentioned each communicating pipe 6 can be in axial front openings, also can be at the radial outside opening.In addition, the shape of the front end of above-mentioned each communicating pipe 6 for example can be enumerated, inclined cut face, vertical plane, taper seat, convex surface etc.

(ink adsorbent)

And, in the present invention, above-mentioned ink adsorbent 3 is got final product by the parts with the continuous pore that can flood ink (being porous material) formation, for example, can enumerate thermal welding processome, the process of resin body of fibre bundle, felt process of resin body, the felt pin punching processing body of fibre bundle, the continuous air bubbles body of synthetic resin etc.And above-mentioned ink adsorbent 3 can be the structure that has the crust that is made of film of synthetic resin etc. at its outer peripheral face.And the place ahead, inside of so-called above-mentioned ink adsorbent 3 is meant the inside of the first half of ink adsorbent 3.Above-mentioned ink adsorbent 3 also can be single parts, also can be the different a plurality of parts of capillary force.

(nib)

And, in the present invention, above-mentioned nib 2 for example can enumerate fibre bundle process of resin body, fibre bundle thermal welding processome, felt processome, tubulose handwriting, most advanced and sophisticated apertured pen template shape handwriting, writing brush handwriting, synthetic resin porous air bladder, ball-point pen tip, have the extruded body etc. of the synthetic resin on axial ink guiding road.And, constitute the material of the rear end of above-mentioned nib 2, at least be used for and suitably be connected with ink adsorbent 3, parts with capillary gap get final product, for example can enumerate the porous materials such as thermal welding processome, felt processome, synthetic resin porous air bladder of process of resin body, the fibre bundle of fibre bundle, perhaps have the extruded body of the synthetic resin on axial ink guiding road.

(ink absorber)

And, above-mentioned ink absorber 6 is that the material with capillary gap gets final product, for example, porous materials such as the process of resin body of fibre bundle, the thermal welding processome of fibre bundle, felt processome, synthetic resin porous air bladder perhaps have the extruded body etc. of the synthetic resin on axial ink guiding road.The capillary force of above-mentioned ink absorber 63 preferably is set at littler than near the capillary force of part (the high density portion 31) front end of each communicating pipe 6 of ink adsorbent 3 inside.

(embodiment)

(the 1st embodiment)

Fig. 1 to Fig. 2 represents the direct-fluid-supply writing implement 1 of the 1st embodiment of the present invention.

The direct-fluid-supply writing implement 1 of present embodiment has: nib 2; Ink adsorbent 3 is connected above-mentioned nib 2 rear ends; The adsorbent resettlement section keeps above-mentioned nib 2 and accommodates above-mentioned ink adsorbent 3 in inside at leading section; Ink barrel 7 is installed in the rear of above-mentioned adsorbent resettlement section, the direct ink reservoir 8 in inside; Dividing plate 52 is divided above-mentioned adsorbent resettlement section and above-mentioned ink barrel 7; And a plurality of (being specially 2) communicating pipes 6, outstanding from the preceding face forward of aforementioned barriers 52, bundle is connected thoroughly and with the inside of ink adsorbent 3.Above-mentioned adsorbent resettlement section has: the intermediate member 5 that keeps the front end component 4 of above-mentioned nib 2 and connect above-mentioned front end material 4 and above-mentioned ink barrel 7.

Nib

Above-mentioned nib 2 is clavas that the process of resin by synthetic resin system fiber (for example polyester fiber, tacryl, nylon fiber etc.) obtains.The front end front end of above-mentioned nib 2 is ground into bullet shaped.The rearward end outer peripheral face of above-mentioned nib 2 carries out edging to be become cone-shaped.The pars intermedia of above-mentioned nib 2 forms annular ditch groove 21.

The ink adsorbent

Above-mentioned ink adsorbent 3 is made of the processome of columned synthetic resin system fiber (for example polyester fiber).On the outer peripheral face of above-mentioned ink adsorbent 3, be coated with crust cylindraceous.Above-mentioned crust is made of synthetic resin made membrane (for example polyethylene terephthalate made membrane).The saturating insertion pricked to the axle center of above-mentioned ink adsorbent 3 front end faces in the rear end of nib 2, and the rear end of above-mentioned nib 2 is positioned at the place ahead, inside of above-mentioned ink adsorbent 3.

The cylindrical body that above-mentioned front end component 4 is obtained by the injection molding forming of synthetic resin (for example polypropylene, polyethylene etc.).Above-mentioned front end component 4 comprises: keep the minor diameter 41 of nib 2 outer peripheral faces and be positioned at the more position connection setting at rear of this minor diameter 41, keep the large-diameter portion 42 of the anterior outer peripheral face of ink adsorbent 3.

Go up a plurality of ribs 43 that integrally formed direction is forwards, backwards extended at the inner face of above-mentioned front end component 4 (till promptly playing the inner face of large-diameter portion 42) from the inner face of minor diameter 41.Above-mentioned rib 43 forms the 43a of limiting wall portion of step shape at the pars intermedia of the minor diameter 41 and the large-diameter portion 42 of above-mentioned front end component 4.Axial and the above-mentioned limiting wall 43a of the portion butt of the front end edge of ink adsorbent 3, the anterior outer peripheral face of ink adsorbent 3 is crimped on the rib 43 of the inner face that remains on above-mentioned large-diameter portion 42.Above-mentioned rib 43 forms card and ends protuberance 43b on above-mentioned minor diameter 41 inner faces.On above-mentioned minor diameter 41 inner faces, keep the outer peripheral face of nib 2 by rib 43 in crimping radially, and the annular ditch groove 21 and the above-mentioned card of the outer peripheral face of nib 2 ends protuberance 43b card and ends, the moving of restriction nib 2 fore-and-aft directions.

Utilize above-mentioned rib 43, between the inner face of the anterior outer peripheral face of ink adsorbent 3 and large-diameter portion 42, between the pars intermedia inner face of the front end face of ink adsorbent 3 and front end component 4 and between nib 2 outer peripheral faces and minor diameter 41 inner faces, form air flue 10.The place ahead of above-mentioned air flue 10, externally by opening, and the rear of above-mentioned air flue 10 is connected with the rear end face of ink adsorbent 3 from the front end of front end component 4.That is, utilize air flue 10 that the front end face of ink adsorbent 3 and the rear end face of ink adsorbent 3 are connected with atmosphere.

Intermediate member

Intermediate member 5 is cylindrical body that the injection molding forming by synthetic resin (for example polypropylene, polyethylene etc.) obtains, above-mentioned intermediate member 5 is provided with integratedly continuously: forwardly the preceding square tube portion 51 of opening, be formed on wallboard 52 on the bottom of this preceding square tube portion 51, rearward extend setting from this dividing plate 52, in the wings the back square tube portion 53 of opening and from aforementioned barriers 52 fronts to outstanding a plurality of (2 specifically) communicating pipes 6 of axial the place ahead.In the present embodiment, dividing plate 52 is connected with communicating pipe 6 and is arranged to one.In addition, also can be to have fixed dividing plate 52 and the structure of communicating pipe 6 that constitutes with another parts.

Large-diameter portion 42 outer peripheral faces of above-mentioned front end component 4 are by being pressed on the inner peripheral surface that is fixed on above-mentioned preceding square tube portion 51.Utilize above-mentioned before square tube portion 51, dividing plate 52 and front end component 4 large-diameter portion 42 and ink adsorbent 3 is accommodated in the lining, space (being the adsorbent resettlement section) that forms.After above-mentioned, in the square tube portion 53, the peristome of ink barrel 7 is installed with loading and unloading state freely.Particularly, tube portion 53 utilizes screw thread in conjunction with the peristome that ink barrel 7 is installed with loading and unloading state freely in the wings.

The rear end face of aforementioned barriers 52 and above-mentioned ink adsorbent 3 keeps contactless state, between the rear end face of aforementioned barriers 52 and above-mentioned ink adsorbent 3, forms the gap 9 that is connected with atmosphere.Above-mentioned gap 9 is connected with atmosphere by above-mentioned air flue 10.

Communicating pipe

Inside separately in above-mentioned communicating pipe 6 is provided with circulation flow path 62 vertically, above-mentioned circulation flow path 62 at the two ends separately of above-mentioned communicating pipe 6 by opening.The front end of above-mentioned each communicating pipe 6 in the place ahead, inside of ink adsorbent 3 by opening; Each rear end of above-mentioned communicating pipe 6 in the ink barrel 7 at ink adsorbent 3 rears by opening.Owing to be configured in side by side between ink adsorbent 3 and the ink barrel 7 above-mentioned a plurality of communicating pipes 6, between the ink barrel 7 at ink adsorbent 3 and rear thereof, be provided with independently a plurality of circulation flow paths 62 side by side.

The front end of above-mentioned each communicating pipe 6 is made of an inclined cut face 61, makes tip shape.The front end of above-mentioned each communicating pipe 6 is forwards pricked insertion from ink adsorbent 3 rear ends, is positioned at last near nib 2 rear ends in the place ahead, inside of ink adsorbent 3.When the front end of above-mentioned each communicating pipe 6 is pricked when being inserted into ink adsorbent 3 thoroughly, the fiber that the front end of each communicating pipe 6 is pushed compressed ink adsorbent 3 forwards.Thus, near the fibre density of the ink adsorbent 3 the front end of each communicating pipe 6 is set at the fibre density height than near the ink adsorbent 3 of the part beyond the front end of each communicating pipe 6.That is, in ink adsorbent 3 inner high high density portion 31 and the low low-density portions 32 of fibre density of fibre density that form.The front end of above-mentioned each communicating pipe 6 is positioned at the place ahead, inside of ink adsorbent 3, so, form above-specified high density portion 31 in the place ahead, inside of ink adsorbent 3; Form above-mentioned low-density portion 32 at the rear, inside of ink adsorbent 3.Above-mentioned each communicating pipe 6 is forwards run through low-density portion 32 from the rear, the front end of above-mentioned each communicating pipe 6 is positioned at the inside than high density portion 31 more on the front of low-density portion 32.In addition, in the present embodiment, the voidage (porosity) of above-mentioned low-density portion 32 is set at 85%～93%, and the difference of the voidage of above-mentioned low-density portion 32 and the voidage of above-specified high density portion 31 is set at 20%.In the present invention, the voidage of high density portion 31 preferably 70～95%.In addition, in the present invention, the difference of the voidage of above-mentioned low-density portion 32 and the voidage of above-specified high density portion 31 is preferably more than or equal to 7%.And the difference of the voidage of above-mentioned low-density portion 32 and the voidage of above-specified high density portion 31 is preferably more than or equal to 10%

The front end separately of above-mentioned communicating pipe 6 disposes to the position that foreign side departs from the axle center radius vector that is positioned at from ink adsorbent 3.In detail, the front end of above-mentioned each communicating pipe 6 is on the same circumference at center in the axle center with ink adsorbent 3 according to the arranged spaced that equates.In the present embodiment, communicating pipe 6 is 2, so, form above-mentioned communicating pipe 6 of configuration on the symmetrical position of 180 degree in axle center with respect to ink adsorbent 3.Above-mentioned nib 2 is positioned on the axle center of ink adsorbent 3, so, the front end of above-mentioned each communicating pipe 6 directly is not connected with nib 2 rear ends, is in the non-contacting state with nib 2, and the place ahead, inside (high density portion 31) by ink adsorbent 3 connects into ink and can circulate.And the front end of above-mentioned each communicating pipe 6 is positioned at than on the position a little on the front, nib 2 rear ends.

The inclined cut face 61 of the front end separately of above-mentioned communicating pipe 6 forms the front end opening that comprises each communicating pipe 6.Above-mentioned inclined cut face 61 (being the front end opening of communicating pipe 6) is towards the axis direction (being nib 2 back extreme directions) of ink adsorbent 3.Thus, ink promptly can be supplied to nib 2 rear ends, and near nib 2 rear ends, suitably carry out communicating pipes 6 front end fiber push compression, be easy to set near the fibre density nib 2 rear ends higher.In the present embodiment, the outside of above-mentioned each communicating pipe 6 and the cross section of inner face are toroidal, and the outer peripheral edges of the front end of above-mentioned each communicating pipe 6 and inner peripheral utilize inclined cut face 61 and form elliptical shape.

Axial distance

And in the present embodiment, the axial length L of above-mentioned ink adsorbent 3 integral body is set at 30mm.And in the present embodiment, both all are set at 4mm to play axial distance S1, S2 that the front end of above-mentioned each communicating pipe 6 ends from the front end of above-mentioned ink adsorbent 3.Therefore, playing axial distance S1, the S2 that the front end of above-mentioned each communicating pipe 6 ends from the front end of above-mentioned ink adsorbent 3 is 13.3% (promptly in 3%～50% the scope) of the axial length L of above-mentioned ink adsorbent 3 integral body.And, in the present embodiment, axial distance T1, the T2 of the rear end of the front end of above-mentioned each communicating pipe 6 and above-mentioned nib 2, both all are set at 1mm (being in the 10mm).

Ink barrel

Above-mentioned ink barrel 7 be front opening, back-end closure the bottom tube-like body arranged, it utilizes the injection molding forming of synthetic resin or blowing (blow moulding) forming process to obtain.Direct ink reservoir 8 in above-mentioned ink barrel 7.Be stored in inks 8 in the above-mentioned ink barrel 7 and can be in water-base ink, the oily ink any.

The front end opening of above-mentioned ink barrel 7 is mounted to intermediate member 5 and loads and unloads freely.Use up and under the situation about can not write at the ink 8 of above-mentioned ink barrel 7, above-mentioned ink barrel 7 is taken off from middle parts 5, after these ink barrel 7 inner filling inks 8, perhaps, be replaced with inner having filled with after the new ink barrel 7 of ink 8, the ink barrel 7 of above-mentioned inside filling ink 8 is installed on the intermediate member 5.Thus, just can write again.

(the 2nd embodiment)

Fig. 3 represents the present invention the 2nd embodiment.

Present embodiment is the variation of the 1st embodiment.Be with the difference of the 1st embodiment, the anterior outer peripheral face of ink adsorbent 3 is pushed compression to radially inner side, form high density portions 31 in 3 front portions of ink adsorbent thus.

Be formed on a plurality of ribs 43 on large-diameter portion 42 inner faces of front end component 4, the diameter of its inscribed circle is set at bigger slightly than the external diameter of the front portion of ink adsorbent 3.Above-mentioned ink adsorbent 3 before being pressed into front end component 4, has uniform Density Distribution on fore-and-aft direction.And, if the front portion of above-mentioned ink adsorbent 3 is pressed into the large-diameter portion 42 of above-mentioned front end component 4, then utilize above-mentioned rib 43, the anterior outer peripheral face of above-mentioned ink adsorbent 3 is to the radially inner side compression that is pressed, thus, form high density portion 31 in the front portion of ink adsorbent 3.Meanwhile, the rear of above-specified high density portion 31 since the outer peripheral face of ink adsorbent 3 be not compressed diametrically, so, form low-density portion 32.The rear end of the front end of each communicating pipe 6 and nib 2 is positioned at rib 43 radially inner sides of above-mentioned large-diameter portion 42 inner faces, therefore, near the front end of each communicating pipe 6 and near the rear end of nib 2, can suitably form high density portion 31.And above-mentioned structure in addition is identical with the structure of the 1st embodiment, therefore omits explanation.

(the 3rd embodiment)

Fig. 4 represents the present invention the 3rd embodiment.

Present embodiment is the variation of the 1st embodiment, is with the 1st embodiment difference, by the front end face of ink adsorbent 3 is rearward pushed compression, has formed high density portion 31 in the front portion of ink adsorbent 3.

On the 43a of limiting wall portion that is formed at a plurality of ribs 43 on front end component 4 inner faces, the rearward outstanding bigger 43c of the portion that penetrates forms as one.Be pressed in the forward end parts 4 before the above-mentioned ink adsorbent 3, on fore-and-aft direction, have uniform Density Distribution.And, if the front portion of above-mentioned ink adsorbent 3 is inserted in the large-diameter portion 42 of above-mentioned front end component 4, then above-mentionedly penetrate the front end face that the 43c of portion is inserted into above-mentioned ink adsorbent 3 more deeply, the compression that rearward is pressed of the front end face of ink adsorbent 3, thus, form high density portion 31 in the front portion of ink adsorbent 3.Meanwhile, therefore the compression that is not pressed of the outer peripheral face of the ink adsorbent 3 at the rear of above-specified high density portion 31, forms low-density portion 32.Because the above-mentioned rear end that penetrates the 43c of portion is positioned near the front end of each communicating pipe 6 and near the rear end of nib 2, therefore, near the front end of each communicating pipe 6 and near the rear end of nib 2, can suitably forms high density portion 31.And above-mentioned structure in addition is the structure identical with the 1st embodiment, the Therefore, omited explanation.

(the 4th embodiment)

Fig. 5 represents the 4th embodiment of the present invention.

Present embodiment is the variation of the 1st embodiment, is with the 1st embodiment difference, and ink adsorbent 3 is made of the 1st ink adsorbent that constitutes high density portion 31 and the 2nd ink adsorbent that constitutes low-density portion 32.

The fibre density of the 1st ink adsorbent preestablishes highly, and the fibre density of the 2nd ink adsorbent is redefined for lower than the fibre density of above-mentioned the 1st ink adsorbent.Being configured to the rear end face of above-mentioned the 1st ink adsorbent and the front end face of the 2nd ink adsorbent contacts.Communicating pipe 6 run through above-mentioned the 2nd ink adsorbent separately in the axial direction, the front end of each communicating pipe 6 is forwards pricked and is connected from the rear end face of ink adsorbent 3.And the rear end of nib 2 is rearward pricked and is connected from the front end face of the 1st ink adsorbent.Thus, high density portion 3 suitably is positioned near the front end of each communicating pipe 6 and near the rear end of nib 2.And above-mentioned structure in addition is identical with the 1st embodiment, the Therefore, omited explanation.

(the 5th embodiment)

Fig. 6 represents the 5th embodiment of the present invention.

Present embodiment is the variation of the 1st embodiment, is with the 1st embodiment difference, accommodates the ink absorber 63 that is made of the fiber process body in the circulation flow path 62 of each communicating pipe 6.The fibre density of above-mentioned ink absorber 63 (capillary force) is set at littler than the fibre density (capillary force) of the high density portion 31 of ink adsorbent 3.By in communicating pipe 6, accommodating above-mentioned ink absorber 63,, also can suitably carry out liquid sealing to the front end opening of communicating pipe 6 even set external diameter and the internal diameter of communicating pipe 6 bigger.Its result, the external diameter of communicating pipe 6 and internal diameter can be set slightlyer, help preventing the bending of communicating pipe 6.And above-mentioned structure in addition is identical with the 1st embodiment, so its explanation is omitted.

(the 6th embodiment)

Fig. 7 and Fig. 8 represent the 6th embodiment of the present invention.

Present embodiment is the variation of the 1st embodiment, is with the 1st embodiment difference, utilizes the plate rib 64 that extends in the axial direction that the sidewall of each communicating pipe 6 is interlinked and is one.Thus, can improve the bending strength of each communicating pipe 6, can stably prick saturating the insertion to ink adsorbent 3.And above-mentioned structure in addition is the structure identical with the 1st embodiment, the Therefore, omited explanation.

Fig. 9 represents the example of other communicating pipes 6.

This is another example that each sidewall with communicating pipe 6 interlinks.That is, in this embodiment, the structure that the demarcation strip that utilization is extended on longitudinally is divided the inside of 1 cylindrical body, perhaps in other words, it is one that half moon 2 communicating pipes 6 of cross section are linked, and forms the cross circular section shape.Thus, be arranged side by side half moon 2 circulation flow paths 62 of cross section independently in the inside of cylindrical body.

Figure 10 represents the example of another communicating pipe 6.

This is the structure example that the communicating pipe 6b of minor diameter is arranged in the internal configurations of large diameter communicating pipe 6a.In this embodiment, between the outer peripheral face of the communicating pipe 6b of the inner peripheral surface of large diameter communicating pipe 6a and minor diameter, form the circulation flow path 62 of cross section ring-type, form the circulation flow path 62 of cross circular section shape in the inside of the communicating pipe of minor diameter 6b.

(the 7th embodiment)

Figure 11 represents the 7th embodiment of the present invention.

Present embodiment is the variation of the 1st embodiment, is that with the 1st embodiment difference the front end of nib 2 has chisel-shape; Communicating pipe 6 is made of different parts with dividing plate 52.

On aforementioned barriers 52, two installing hole 52a are set along the fore-and-aft direction break-through.In above-mentioned each installing hole 52a, be pressed into fixedly communicating pipe 6.And integrally formed above-mentioned installing hole 52a is forwardly by the annular convex 52b of opening on the front of aforementioned barriers 52.The rear end face of above-mentioned annular convex 52b and above-mentioned ink adsorbent 3 connects, and suitably forms the corresponding gap 9 of outstanding size with above-mentioned annular convex 52b between the rear end face of above-mentioned ink adsorbent 3 and dividing plate 52.And, the front end face of above-mentioned ink adsorbent 3 and the 43a of limiting wall portion butt, and, be the structure of the rear end face and the above-mentioned annular convex 52b butt of above-mentioned ink adsorbent 3, so, fore-and-aft direction loosening of ink adsorbent 3 can be prevented.And above-mentioned structure in addition is identical with the 1st embodiment, the Therefore, omited explanation.

(the 8th embodiment)

Figure 12 represents the 8th embodiment of the present invention.

Present embodiment is the variation of the 1st embodiment, and nib 2 is made of ball-point pen tip.Above-mentioned nib 2 has: support 2, rotatably seize ball 22 on both sides by the arms at front end; And ink guide member 24, it inserts and is fixed in this support 23.Above-mentioned ink guide member 24 is made of the process of resin body of bar-shaped synthetic resin system fiber, and saturating the insertion pricked from the front end of ink adsorbent 3 in its rear end, is positioned at the place ahead, inside of ink adsorbent 3.And on minor diameter 41 sidewalls of front end component 4, break-through is provided with airport 44.And, utilizing above-mentioned airport 44, the air flue 10 in atmosphere and the front end component 4 is connected.And the structure except that above-mentioned is the structure identical with the 1st embodiment, the Therefore, omited explanation.

(the 9th embodiment)

Figure 13 represents the 9th embodiment.

Present embodiment is the variation of the 1st embodiment, is that with the difference of the 1st embodiment the front end of each communicating pipe 6 is a vertical plane with respect to axis, the Therefore, omited explanation.

(the 10th embodiment)

Figure 14 represents the 10th embodiment.

Present embodiment is the variation of the 1st embodiment, is that with the difference of the 1st embodiment the front end of each communicating pipe 6 is a vertical plane with respect to axis, and the front end of each communicating pipe 6 is in axial front openings, but by a plurality of fenestras 65 at the radial outside opening.And above-mentioned structure in addition is the structure identical with the 1st embodiment, the Therefore, omited explanation.

(the 11st embodiment)

Present embodiment is the variation of the 1st embodiment, be with the difference of the 1st embodiment, the front end of each communicating pipe 6 is a vertical plane with respect to axis, be pressed into the rear portion of nib 2 in the reach through hole in the axle center of ink adsorbent 3, the rear end of nib 2 is positioned at the inside rear side (the latter half of inside of ink adsorbent 3) of ink adsorbent 3.And above-mentioned structure in addition is the structure identical with the 1st embodiment, the Therefore, omited explanation.

Claims

1. a direct-fluid-supply writing implement comprises: nib; The ink adsorbent is connected the rear end of above-mentioned nib; Ink barrel is configured in the rear of above-mentioned ink adsorbent, directly ink reservoir; And communicating pipe, connect above-mentioned ink barrel and above-mentioned ink adsorbent, it is characterized in that: have a plurality of above-mentioned communicating pipes, the front end of above-mentioned each communicating pipe is by opening, above-mentioned ink adsorbent has high density portion and is connected locational low-density portion after leaning on than this high density portion, and the front end of above-mentioned each communicating pipe is connected with above-specified high density portion with the rear end of above-mentioned nib.

2. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that, the inside of above-mentioned low-density portion was communicated with each above-mentioned communicating pipe.

3. direct-fluid-supply writing implement as claimed in claim 1, it is characterized in that: when the front end of each communicating pipe has been inserted in the rear end of ink adsorbent, the front end of above-mentioned each communicating pipe is forwards pushed compression with the inside of ink adsorbent, so near the inside of the ink adsorbent the front end of each communicating pipe forms above-specified high density portion.

4. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: above-specified high density portion forms by the lateral surface of pushing the compressed ink adsorbent diametrically to the inside.

5. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: above-specified high density portion forms by the front end face of ink adsorbent rearward being pushed compression.

6. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: above-mentioned ink adsorbent comprises and is set at highdensity the 1st ink adsorbent and is set at low-density the 2nd ink adsorbent that the 1st ink adsorbent constitutes above-specified high density portion; The 2nd ink adsorbent constitutes above-mentioned low-density portion.

7. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: have the ink adsorbent in capillary gap in the internal configurations of above-mentioned each communicating pipe, the capillary force of above-mentioned ink adsorbent is set for littler than the capillary force of above-specified high density portion.

8. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: the axial set positions of the front end of above-mentioned each communicating pipe is for equating mutually.

9. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: the front end of above-mentioned each communicating pipe is positioned near the nib rear end.

10. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: connecting into ink by above-specified high density portion between the front end of above-mentioned nib rear end and above-mentioned each communicating pipe can circulate.

11. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: the front end face of above-mentioned ink adsorbent and rear end face are connected with atmosphere.

12. direct-fluid-supply writing implement as claimed in claim 1 is characterized in that: the sidewall of above-mentioned communicating pipe is linked mutually.