TW201726438A - Ink cartridge and pen - Google Patents

Ink cartridge and pen Download PDF

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Publication number
TW201726438A
TW201726438A TW105139224A TW105139224A TW201726438A TW 201726438 A TW201726438 A TW 201726438A TW 105139224 A TW105139224 A TW 105139224A TW 105139224 A TW105139224 A TW 105139224A TW 201726438 A TW201726438 A TW 201726438A
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Taiwan
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plug
writing instrument
ink cartridge
ink
microprotrusion
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TW105139224A
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Chinese (zh)
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TWI689423B (en
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星野貴宣
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百樂股份有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/02—Ink reservoirs
    • B43K5/14—Exchangeable ink cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/02—Ink reservoirs; Ink cartridges
    • B43K7/08—Preventing leakage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
    • B43K8/03—Ink reservoirs; Ink cartridges

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)

Abstract

Provided is an ink cartridge capable of being used in both of a pen body adapted for ink leakage preventing mechanism and a pend body not adapted for ink leakage preventing mechanism. An ink cartridge 3 of this invention includes a cylindrical container 30 for receiving ink, and a plug for closing an opening 31 of the container 30, wherein the plug can be opened by a protrusion 22 provided in a pen body 20, wherein the plug includes a first plug 40 and a second plug 50, the first plug 40 has a plug body 41 engaged with the protrusion 22, the second plug 50 has a peripheral portion 52 engaged with an inner circumferential surface of the opening 31, and a passing hole 51a for ink engaged with the plug body 41 of the first plug 40, the engaging force between the peripheral portion 52 of the second plug 50 and the inner circumferential surface of the opening 31 is larger than the engaging force between the plug body 41 of the first plug 40 and the passing hole 51a of the second plug 50, and the peripheral portion 52 of the second plug 50 is configured to be able to depart from the inner circumferential surface of the opening 31 by a force in a rear direction of the container 30.

Description

墨水匣及筆具 Ink cartridges and pens

本發明是關於一種更換式的墨水匣及具備該墨水匣的筆具，尤其是關於一種具備墨水防漏機構的墨水匣及筆具。 The present invention relates to a replaceable ink cartridge and a writing instrument including the ink cartridge, and more particularly to an ink cartridge and a writing instrument having an ink leakage preventing mechanism.

過去以來已知有一種具備可更換的墨水匣的筆具。以往的墨水匣的構造是具備收容墨水的筒狀容器、以及將該容器之開口部加以密閉的栓。以往的栓是由滾珠或圓板構成。在與墨水匣對應的筆具主體設置用來使栓開放的突起。 A writing instrument having a replaceable ink cartridge has been known in the past. The structure of the conventional ink cartridge includes a cylindrical container that stores ink, and a plug that seals the opening of the container. The conventional plug is composed of a ball or a circular plate. A pen body corresponding to the ink cartridge is provided with a projection for opening the plug.

例如，日本特開2008-006794號公報(專利文獻1)的第1圖所揭示的筆具1係具備用來使墨水匣7的栓9開放的突片53a。突片53a設在連接管部53。連接管部53安裝在墨水匣7的開口部。連接管部53被推入墨水匣7的開口部時，突片53a係推壓栓9的周邊部。藉此，栓9得以從墨水匣7的開口部脫離。接下來，墨水匣7內的墨水會通過連接管部53被供應至墨水吸藏體3。 For example, the writing instrument 1 disclosed in Fig. 1 of Japanese Laid-Open Patent Publication No. 2008-006794 (Patent Document 1) is provided with a projection 53a for opening the plug 9 of the ink cartridge 7. The tab 53a is provided in the connecting tube portion 53. The connection pipe portion 53 is attached to the opening of the ink cartridge 7. When the connecting tube portion 53 is pushed into the opening of the ink cartridge 7, the tab 53a pushes the peripheral portion of the plug 9. Thereby, the plug 9 is detached from the opening of the ink cartridge 7. Next, the ink in the ink cartridge 7 is supplied to the ink absorbing body 3 through the connection pipe portion 53.

然而，專利文獻1的筆具1存在有以下問題：在將使用完的墨水匣7從連接管部53卸下時，殘留在 墨水匣7內的墨水會從開口部漏出。因此，本案申請人在國際公開第2015/041202號說明書(專利文獻2)當中提案一種具備墨水防漏機構的筆具。 However, the writing instrument 1 of Patent Document 1 has a problem in that when the used ink cartridge 7 is detached from the connecting tube portion 53, it remains in The ink in the ink cartridge 7 leaks from the opening. Therefore, the applicant of the present invention proposes a writing instrument having an ink leakage preventing mechanism in the specification of International Publication No. 2015/041202 (Patent Document 2).

例如，專利文獻2的第4圖(a)至(c)所揭示的筆具101具備筆具主體102及墨水匣106。在筆具主體102的中央設有棒狀的突起部152。並且在突起部152的前端形成有小突起155。小突起155具有公型嵌合部的功能。另一方面，墨水匣106具備栓108。栓108係成為在墨水匣106的開口部172裝卸自如的構造。在栓108的前端設有小孔183。小孔183具有母型嵌合部的功能。 For example, the writing instrument 101 disclosed in FIGS. 4(a) to 4(c) of Patent Document 2 includes a writing instrument main body 102 and an ink cartridge 106. A rod-shaped projection 152 is provided at the center of the writing instrument body 102. Further, a small protrusion 155 is formed at the front end of the protrusion 152. The small protrusion 155 has a function of a male fitting portion. On the other hand, the ink cartridge 106 is provided with a plug 108. The plug 108 is configured to be detachable from the opening 172 of the ink cartridge 106. An aperture 183 is provided at the front end of the plug 108. The small hole 183 has a function as a female fitting portion.

當墨水匣106被推入筆具主體102時，突起部152的小突起155係嵌合在栓108的小孔182。突起部152以保持著小突起155與小孔182之嵌合的狀態推壓栓108。藉此，栓108得以從墨水匣106的開口部172脫離。然後，墨水匣106內的墨水通過墨水誘導部151被供應至墨水吸藏體104。 When the ink cartridge 106 is pushed into the writing instrument body 102, the small projection 155 of the projection 152 is fitted into the small hole 182 of the plug 108. The projection 152 pushes the plug 108 in a state in which the small projection 155 and the small hole 182 are fitted. Thereby, the plug 108 is detached from the opening 172 of the ink cartridge 106. Then, the ink in the ink cartridge 106 is supplied to the ink absorbing body 104 through the ink inducing portion 151.

另一方面，當使用完的墨水匣106從筆具主體102被抽出時，嵌合在小突起155的栓108會再度被***至墨水匣106的開口部172。當小突起155與小孔182的嵌合被解除時，栓108便被嵌合在墨水匣106的開口部172。藉此，墨水匣106的開口部172得以藉由栓108而被密閉。其結果，防止了殘留在墨水匣106內的墨水漏出。 On the other hand, when the used ink cartridge 106 is taken out from the writing instrument main body 102, the plug 108 fitted to the small projection 155 is again inserted into the opening portion 172 of the ink cartridge 106. When the fitting of the small projection 155 and the small hole 182 is released, the plug 108 is fitted into the opening portion 172 of the ink cartridge 106. Thereby, the opening portion 172 of the ink cartridge 106 can be sealed by the plug 108. As a result, the ink remaining in the ink cartridge 106 is prevented from leaking out.

[先前技術文獻] [Previous Technical Literature] [專利文獻] [Patent Literature]

[專利文獻1]日本特開2008-006794號公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-006794

[專利文獻2]國際公開第2015/041202號說明書 [Patent Document 2] International Publication No. 2015/041202

〈與舊產品的筆具主體的互換性〉 <Interchangeability with the main body of the old product>

如上所述，專利文獻2的筆具101具有在更換墨水匣106時防止殘留的墨水漏出的良好效果。然而，專利文獻2的墨水匣106會有無法適用在如專利文獻1所揭示之在連接管部53設有突片53a的筆具1的問題。亦即，專利文獻1的筆具1的構造是透過由突片53a推壓栓9的周邊部使栓9脫離。相對於此，專利文獻2的筆具101的構造是藉由設在筆具主體102之中央的突起部152使栓108脫離。設在專利文獻1之筆具1的突片53a無法使專利文獻2的墨水匣106的栓108脫離。亦即，專利文獻2的墨水匣106無法使用在如專利文獻1之用來使栓開放的構造有所不同的筆具101。 As described above, the writing instrument 101 of Patent Document 2 has a good effect of preventing the residual ink from leaking when the ink cartridge 106 is replaced. However, the ink cartridge 106 of Patent Document 2 has a problem that it cannot be applied to the writing instrument 1 in which the protruding piece 53a is provided in the connecting tube portion 53 as disclosed in Patent Document 1. That is, the writing instrument 1 of Patent Document 1 has a structure in which the plug 9 is detached by pushing the peripheral portion of the plug 9 by the tab 53a. On the other hand, in the configuration of the writing instrument 101 of Patent Document 2, the plug 108 is detached by the protruding portion 152 provided at the center of the writing instrument main body 102. The tab 53a of the writing instrument 1 of Patent Document 1 cannot detach the plug 108 of the ink cartridge 106 of Patent Document 2. In other words, the ink cartridge 106 of Patent Document 2 cannot use the writing instrument 101 which is different in the configuration for opening the plug as disclosed in Patent Document 1.

上述專利文獻2的墨水匣106的問題是，產品提供者在將舊產品替換成新產品時會產生現實上的問題。亦即，產品提供者在開始提供具備墨水防漏機構的新產品之後，仍必須持續提供適合舊產品的墨水匣。墨水匣可更換的筆具預定要反覆使用筆具主體。產品提供者如果以提供新產品為契機而停止提供舊產品的墨水匣，則還可 使用的舊產品的筆具主體就浪費掉了。這便違反了想要透過反覆使用筆具主體來減少資源浪費的環保訴求。另一方面，持續提供新舊兩種墨水匣又會對產品提供者造成經濟上的負擔。此外，市面上同時存在有新舊兩種墨水匣會令新產品及舊產品雙方的使用者混亂。 The problem with the ink cartridge 106 of the above Patent Document 2 is that the product provider has a practical problem in replacing the old product with a new one. That is, after the product provider begins to provide a new product with an ink leak-proof mechanism, it must continue to provide an ink cartridge suitable for the old product. The ink cartridge replaceable pen is intended to be used repeatedly with the pen body. If the product provider stops providing the ink cartridge of the old product by offering a new product, it can also The body of the pen used for the old product was wasted. This violates the environmental appeal of reducing the waste of resources by repeatedly using the main body of the writing instrument. On the other hand, the continued supply of both old and new inks will impose an economic burden on the product provider. In addition, the presence of both old and new inks on the market will confuse users of both new and old products.

〈與舊產品的墨水匣的互換性〉 <Interchangeability with ink cartridges of old products>

另一方面，專利文獻2的筆具主體102也有無法適用於如專利文獻1所揭示之在容器8的開口部內周面嵌裝有圓板狀的栓9的墨水匣7的問題。亦即，難以利用設在專利文獻2的筆具主體102之中央的突起部152使專利文獻1之墨水匣7的栓9順利脫離。理由在於，圓板狀的栓9係以直徑方向的軸為中心旋轉，因此會從容器8的開口部內周面脫離。即使專利文獻2的突起部152壓住栓9的中央，也無法使栓9旋轉。尤其，在專利文獻1之栓9的中央形成有用來區別栓9的表面及背面的圓柱突起。該圓柱突起會干擾專利文獻2的突起部152，以致極為難以利用突起部152使栓9順利脫離。 On the other hand, the writing instrument main body 102 of the patent document 2 has a problem that it cannot be applied to the ink cartridge 7 in which the disk-shaped plug 9 is fitted to the inner circumferential surface of the opening of the container 8 as disclosed in Patent Document 1. In other words, it is difficult to smoothly detach the plug 9 of the ink cartridge 7 of Patent Document 1 by the projection 152 provided at the center of the writing instrument main body 102 of Patent Document 2. The reason is that the disk-shaped plug 9 is rotated about the axis in the radial direction, and therefore is detached from the inner circumferential surface of the opening of the container 8. Even if the protruding portion 152 of Patent Document 2 presses the center of the plug 9, the plug 9 cannot be rotated. In particular, a cylindrical projection for distinguishing the surface and the back surface of the plug 9 is formed in the center of the plug 9 of Patent Document 1. This cylindrical projection interferes with the projection 152 of Patent Document 2, so that it is extremely difficult to smoothly detach the plug 9 by the projection 152.

本發明是鑑於上述問題點而完成者，其目的在於：第1，提供一種可使用在適合墨水防漏機構的筆具主體、以及不適合墨水防漏機構的筆具主體雙方的墨水匣，第2，提供一種可使用在適合墨水防漏機構的墨水匣、以及不適合墨水防漏機構的墨水匣雙方的筆具主體， 第3，提供一種具備上述墨水匣及/或筆具主體的筆具。 The present invention has been made in view of the above problems, and an object of the invention is to provide an ink cartridge which can be used in both a writing instrument body suitable for an ink leakage preventing mechanism and a writing instrument body which is not suitable for an ink leakage preventing mechanism, and a second Providing a writing instrument body which can be used in both an ink cartridge suitable for an ink leakage preventing mechanism and an ink cartridge which is not suitable for an ink leakage preventing mechanism, Thirdly, there is provided a writing instrument comprising the above-described ink cartridge and/or a writing instrument body.

(1)本發明的第1墨水匣係包含收容墨水的筒狀容器、以及將前述容器之開口部加以密閉的栓，並且前述栓藉由設在筆具主體的突起部而被開放，其中：前述栓包含第1栓及第2栓，前述第1栓具有嵌合在前述突起部的栓主體，前述第2栓具有嵌合在前述開口部之內周面的外周部、以及供前述第1栓之栓主體嵌合的前述墨水的通過孔，前述第1栓的栓主體與前述第2栓的通過孔之間的嵌合可藉由前述突起部而解除，此外，前述第2栓的外周部係構成為可藉由朝向前述容器後方的力而從前述開口部的內周面脫離。 (1) The first ink cartridge of the present invention includes a cylindrical container that stores ink, and a plug that seals an opening of the container, and the plug is opened by a projection provided on the writing instrument body, wherein: The plug includes a first plug and a second plug, and the first plug has a plug main body that is fitted to the protruding portion, and the second plug has an outer peripheral portion that is fitted to an inner circumferential surface of the opening, and the first one is provided. The insertion hole of the ink in which the plug main body is fitted, the fitting between the plug main body of the first plug and the passage hole of the second plug can be released by the protruding portion, and the outer circumference of the second plug The part is configured to be detachable from the inner circumferential surface of the opening by a force toward the rear of the container.

(2)較佳為，在上述(1)的墨水匣當中，前述第2栓的外周部與前述開口部的內周面之間的嵌合力比前述第1栓的栓主體與前述第2栓的通過孔之間的嵌合力大。 (2) In the ink cartridge of the above (1), preferably, the fitting force between the outer peripheral portion of the second plug and the inner peripheral surface of the opening is larger than the plug main body of the first plug and the second plug The fitting force between the through holes is large.

(3)較佳為，在上述(1)或(2)的墨水匣當中，構成前述第2栓之通過孔的內周面形成朝向前述容器之後方擴展的錐面狀。 (3) In the ink cartridge of the above (1) or (2), the inner peripheral surface of the through hole constituting the second plug is preferably formed in a tapered shape extending toward the rear of the container.

(4)較佳為，在上述(1)至(3)任一項的墨水匣當中，前述第1栓具有從前述栓主體朝向前述開口部的內周面突出並且構成為可讓前述墨水通過的鍔部。 (4) The ink cartridge according to any one of (1) to (3), wherein the first plug has an inner peripheral surface that protrudes from the plug body toward the opening, and is configured to allow the ink to pass through The crotch.

(5)較佳為，在上述(1)至(4)任一項的墨水匣當中，在前述容器的內側設有段部，前述段部構成為藉由抵接在從前述第2栓脫離的前述第1栓來限制前述第1栓 朝向後方之移動。 (5) Preferably, in the ink cartridge according to any one of the above (1) to (4), a segment portion is provided inside the container, and the segment portion is configured to be detached from the second pin by abutting The first pin is used to limit the first pin Move towards the rear.

(6)較佳為，在上述(1)至(5)任一項的墨水匣當中，在前述栓主體設有母型嵌合部或公型嵌合部，前述母型嵌合部或前述公型嵌合部構成為可嵌合在前述筆具主體的突起部。 (6) The ink cartridge according to any one of the above (1) to (5), wherein the plug body is provided with a female fitting portion or a male fitting portion, the female fitting portion or the aforementioned The male fitting portion is configured to be fitted to the protruding portion of the writing instrument body.

(7)較佳為，在上述(6)的墨水匣當中，在前述栓主體的內側設有前述母型嵌合部，前述母型嵌合部包含僅於前述栓主體之前方形成開口的孔、以及設在前述孔之內周面的環狀凹部。 (7) In the ink cartridge according to (6), preferably, the female fitting portion is provided inside the plug body, and the female fitting portion includes a hole that is formed only in front of the plug body. And an annular recess provided on the inner circumferential surface of the hole.

(8)較佳為，在上述(1)至(7)任一項的墨水匣當中，前述容器的開口部具有13mm以上23mm以下的外徑。 (8) In the ink cartridge according to any one of the above (1) to (7), the opening of the container has an outer diameter of 13 mm or more and 23 mm or less.

(9)較佳為，在上述(8)的墨水匣當中，前述容器的開口部具有10至22mm之範圍內的內徑。 (9) Preferably, in the ink cartridge of the above (8), the opening of the container has an inner diameter in a range of 10 to 22 mm.

(10)本發明之筆具係包含上述(1)至(9)任一項的墨水匣、以及以可更換的方式安裝有前述墨水匣的筆具主體，且在前述筆具主體設有突起部，前述突起部係從前述筆具主體朝向後方突出，並且構成為可使前述墨水匣的第1栓或第2栓之任一者開放。 (10) The writing instrument of the present invention, comprising the ink cartridge according to any one of (1) to (9) above, and a writing instrument body in which the ink cartridge is replaceably attached, and wherein the writing instrument body is provided with a projection The protruding portion protrudes rearward from the writing instrument body, and is configured to open either of the first plug or the second plug of the ink cartridge.

(11)較佳為，在上述(10)的筆具當中，前述突起部配置在前述筆具主體的中央，具有可通過前述第2栓之通過孔的短邊方向的寬度，並且構成為可嵌合在前述第1栓的栓主體；前述突起部與前述栓主體之間的嵌合力比前述第2栓的外周部與前述開口部的內周面之間的嵌合 力小。 (11) In the writing instrument of (10), the protruding portion is disposed at a center of the writing instrument body, and has a width in a short-side direction through a through hole of the second plug, and is configured to be a plug main body fitted to the first plug; a fitting force between the protruding portion and the plug main body is larger than a fitting between an outer peripheral portion of the second plug and an inner peripheral surface of the opening Small force.

(12)較佳為，在上述(11)的筆具當中，在前述突起部設有公型嵌合部或母型嵌合部，前述公型嵌合部或前述母型嵌合部構成為可嵌合在前述栓主體。 (12) In the pen according to the above (11), preferably, the protruding portion is provided with a male fitting portion or a female fitting portion, and the male fitting portion or the female fitting portion is configured as It can be fitted to the plug body.

(13)較佳為，在上述(12)的筆具當中，在前述栓主體的內側設有母型嵌合部，前述母型嵌合部包含僅於前述栓主體之前方形成開口的孔、以及設在前述孔之內周面的環狀凹部，在前述突起部的前端設有前述公型嵌合部，前述公型嵌合部具有可嵌合在前述環狀凹部之任一部分的複數個凸面。 (13) The pen according to the above (12), wherein a female fitting portion is provided inside the plug body, and the female fitting portion includes a hole that is formed only in front of the plug body, And an annular recessed portion provided on an inner circumferential surface of the hole, wherein the male fitting portion is provided at a tip end of the protruding portion, and the male fitting portion has a plurality of portions that are engageable in any one of the annular recessed portions Convex.

(14)較佳為，在上述(11)至(13)任一項的筆具當中，前述突起部具有與前述第2栓之通過孔的直徑大致相等的短邊方向的寬度，在插通於前述通過孔時將該通過孔劃分成兩個。 (14) The pen according to any one of (11) to (13), wherein the protrusion has a width in a short-side direction that is substantially equal to a diameter of a through hole of the second pin, and is inserted. The through hole is divided into two when passing through the hole.

(15)較佳為，在上述(14)的筆具當中，前述突起部設在劃分前述筆具主體之內部的間隔壁的中央，在前述間隔壁，以將前述突起部夾在中間之方式設有至少兩個貫通孔，在前述突起部的側面設有與前述貫通孔相對應的至少兩個流路，前述流路由朝前後方向延伸的凹槽部構成。 (15) The pen according to the above (14), wherein the protruding portion is provided at a center of a partition wall that partitions the inside of the writing instrument body, and the partition wall is sandwiched between the protruding portions At least two through holes are provided, and at least two flow paths corresponding to the through holes are provided on a side surface of the protrusion, and the flow path is formed by a groove portion extending in the front-rear direction.

(16)較佳為，在上述(11)至(15)任一項的筆具當中，在前述筆具主體設有密閉連接部，前述密閉連接部由包圍前述突起部的筒狀壁部構成，並且具有可密閉嵌合在前述開口部之內周面的外周面。 (16) In the writing instrument according to any one of the items (11) to (15), the pen body is provided with a sealing connecting portion, and the sealing connecting portion is constituted by a cylindrical wall portion surrounding the protruding portion. Further, it has an outer peripheral surface that can be hermetically fitted to the inner circumferential surface of the opening.

(17)較佳為，在上述(10)的筆具當中，在前述筆具主體設有密閉連接部，前述密閉連接部具有可密閉嵌合在前述開口部之內周面的外周面，在前述密閉連接部設有前述突起部，前述突起部係從前述密閉連接部朝向後方突出，且構成為可藉由將前述第2栓的周邊部朝向前述容器的後方推壓而使前述第2栓開放。 (17) In the writing instrument of the above (10), the writing instrument main body is provided with a sealing connection portion, and the sealing connection portion has an outer circumferential surface that can be hermetically fitted to the inner circumferential surface of the opening portion. The sealing portion is provided with the protruding portion, and the protruding portion protrudes rearward from the sealed connecting portion, and is configured to be capable of pressing the peripheral portion of the second plug toward the rear of the container to cause the second plug open.

(18)較佳為，在上述(12)至(16)任一項的筆具當中，在前述栓主體的內側設有母型嵌合部，前述母型嵌合部包含僅於前述栓主體之前方形成開口的孔、以及設在前述孔之內周面的環狀凹部，在前述突起部的前端設有前述公型嵌合部，前述公型嵌合部具有可嵌合在前述環狀凹部之任一部分的複數個凸面，在前述公型嵌合部的前端設有第1微小突起，前述第1微小突起從前述公型嵌合部的中心偏離而位於一側且從前述公型嵌合部朝向後方突出，並且具有在前述公型嵌合部嵌合在前述母型嵌合部時不會與前述栓主體接觸的長度。 (18) The pen according to any one of the above (12) to (16), wherein a female fitting portion is provided inside the plug body, and the female fitting portion includes only the plug body a hole having an opening formed in the front side and an annular recessed portion provided on an inner circumferential surface of the hole, and the male fitting portion is provided at a tip end of the protruding portion, and the male fitting portion is engageable in the ring shape a plurality of convex surfaces of any one of the concave portions are provided with a first microprotrusion at a distal end of the male fitting portion, and the first microprotrusion is located on one side from the center of the male fitting portion and is embedded from the male The joint portion protrudes rearward and has a length that does not come into contact with the plug body when the male fitting portion is fitted to the female fitting portion.

(19)較佳為，在上述(18)的筆具當中，在前述公型嵌合部的前端設有第2微小突起，前述第2微小突起從前述公型嵌合部的中心偏離而位於另一側且從前述公型嵌合部朝向後方突出，並且具有比前述第1微小突起短的長度且在其與前述第1微小突起之間形成間隙。 (19) In the writing instrument of the above (18), the second microprotrusion is provided at the distal end of the male fitting portion, and the second microprotrusion is located offset from the center of the male fitting portion. The other side protrudes rearward from the male fitting portion, and has a shorter length than the first microprotrusion and a gap is formed between the first microprotrusion and the first microprotrusion.

(20)較佳為，在上述(19)的筆具當中，前述第1微小突起與前述第2微小突起之間的前述間隙的位置係從前述公型嵌合部的中心偏離而靠近另一側。 (20) The pen according to the above (19), wherein the position of the gap between the first microprotrusion and the second microprotrusion is shifted from a center of the male fitting portion to another side.

(21)較佳為，在上述(18)至(20)任一項的筆具當中，前述第1微小突起的前端面具有比垂直狀態的前述第1微小突起之水平方向的剖面積小的面積。 (21) In the writing instrument of any one of (18) to (20), the front end surface of the first microprotrusion has a smaller cross-sectional area in the horizontal direction than the first microprotrusion in a vertical state. area.

(22)較佳為，在上述(21)的筆具當中，前述第1微小突起之相對向的兩個側面從前述第1微小突起的前端側朝向前述公型嵌合部傾斜。 (22) In the writing instrument of the above (21), preferably, the two side faces of the first microprotrusions are inclined from the distal end side of the first microprotrusion toward the male fitting portion.

(23)較佳為，在上述(21)或(22)的筆具當中，前述第2微小突起的前端面具有比垂直狀態的前述第2微小突起之水平方向的剖面積小的面積。 (23) In the writing instrument of the above (21) or (22), the distal end surface of the second microprotrusion has an area smaller than a cross-sectional area of the second microprotrusion in a vertical state in the horizontal direction.

(24)較佳為，在上述(23)的筆具當中，前述第2微小突起之相對向的兩個側面從前述第2微小突起的前端側朝向前述公型嵌合部傾斜。 (24) In the writing instrument of the above (23), preferably, the two side faces of the second microprotrusions are inclined from the distal end side of the second microprotrusion toward the male fitting portion.

(25)本發明的第2墨水匣係適合上述(19)至(24)任一項的前述筆具主體者，該墨水匣包含收容墨水的筒狀容器、以及將前述容器之開口部加以密閉的圓板狀的栓，在前述栓的中央設有圓柱突起，前述圓柱突起的長度比前述第1微小突起與前述第2微小突起之間的前述間隙的深度短，並且前述圓柱突起的直徑比前述第1微小突起與前述第2微小突起之間的前述間隙的寬度短。 (25) The second ink cartridge according to any one of the above (19) to (24), wherein the ink cartridge comprises a cylindrical container for accommodating ink, and the opening of the container is sealed a circular plate-shaped plug having a cylindrical projection at a center of the plug, wherein a length of the cylindrical projection is shorter than a depth of the gap between the first microprotrusion and the second microprotrusion, and a diameter ratio of the cylindrical projection The width of the gap between the first microprotrusion and the second microprotrusion is short.

此外，本說明書當中，「前方」的用語代表筆具的筆尖方向、以及墨水匣之開口部的方向，「後方」的用語代表與前方相反的方向。 In addition, in this specification, the term "forward" means the direction of the tip of the pen and the direction of the opening of the ink cartridge, and the term "rear" means the direction opposite to the front.

本發明之墨水匣可使用在適合墨水防漏機 構的筆具主體、以及不適合墨水防漏機構的筆具主體雙方。亦即，本發明之墨水匣可使用在用來使栓開放的構造各不相同的兩種筆具主體。此外，本發明之墨水匣適合具備墨水防漏機構的新產品的筆具、以及不具墨水防漏機構的舊產品的筆具雙方。因此，產品提供者在將舊產品替換成新產品時，只要僅在市面上提供具備本發明之構造的一種墨水匣即可。並且，新產品及舊產品雙方的使用者只要選擇市面上所提供的一種墨水匣即可。 The ink cartridge of the invention can be used in a suitable ink leakage prevention machine Both the body of the pen and the body of the pen that are not suitable for the ink leakage prevention mechanism. That is, the ink cartridge of the present invention can use two types of writing instrument bodies which are different in the structure for opening the plug. Further, the ink cartridge of the present invention is suitable for both a writing instrument of a new product having an ink leakage preventing mechanism and a writing instrument of an old product having no ink leakage preventing mechanism. Therefore, when the product supplier replaces the old product with a new one, it is only necessary to provide an ink cartridge having the configuration of the present invention only on the market. Moreover, users of both new and old products can select one of the ink cartridges available on the market.

另一方面，本發明之具備微小突起的筆具主體可使用在適合墨水防漏機構的墨水匣、以及不適合墨水防漏機構的墨水匣雙方。亦即，本發明之具備微小突起的筆具主體可使具備墨水防漏機構的墨水匣的栓、以及不具墨水防漏機構的墨水匣的栓雙方順利開放。因此，即使在剛剛將舊產品替換成新產品之後於市面上流通著新舊兩種墨水匣，仍可在新產品的筆具主體使用新舊雙方的墨水匣。 On the other hand, the writing instrument body having the microprotrusions of the present invention can be used both in an ink cartridge suitable for the ink leakage preventing mechanism and an ink cartridge which is not suitable for the ink leakage preventing mechanism. In other words, in the writing instrument body having the microprotrusions of the present invention, both the plug of the ink cartridge provided with the ink leakage preventing mechanism and the plug of the ink cartridge not having the ink leakage preventing mechanism can be smoothly opened. Therefore, even after the old product has just been replaced with a new product, the old and new ink cartridges are circulated in the market, and the ink cartridges of both the old and the new can be used in the main body of the new product.

1、100‧‧‧筆具 1, 100‧‧‧ pens

2、4、5、6‧‧‧筆具主體 2, 4, 5, 6‧‧‧ pen body

3‧‧‧墨水匣 3‧‧‧Ink 匣

11‧‧‧軸筒 11‧‧‧ shaft tube

11A‧‧‧前軸 11A‧‧‧ front axle

11B‧‧‧後軸 11B‧‧‧ rear axle

12‧‧‧筆尖 12‧‧‧ nib

13‧‧‧墨水吸藏體 13‧‧‧Ink absorbing bodies

14‧‧‧蓋子 14‧‧‧ Cover

20、60‧‧‧中間構件 20, 60‧‧‧ intermediate components

21、61‧‧‧管 21, 61‧‧‧ tube

21a、61a‧‧‧貫通孔 21a, 61a‧‧‧through holes

22、62‧‧‧突起部 22, 62‧‧‧ protruding parts

22A‧‧‧小突起(公型嵌合部) 22A‧‧‧Small protrusions (male fittings)

22B‧‧‧第1微小突起 22B‧‧‧1st tiny protrusion

22C‧‧‧第2微小突起 22C‧‧‧2nd microprotrusion

22D‧‧‧間隙 22D‧‧‧ gap

22a‧‧‧凸部 22a‧‧‧ convex

22b‧‧‧流路 22b‧‧‧Flow

22c、22e‧‧‧前端面 22c, 22e‧‧‧ front end

22d、22f‧‧‧側面 22d, 22f‧‧‧ side

23、63‧‧‧密閉連接部 23, 63‧‧‧ Closed Connections

30‧‧‧容器 30‧‧‧ Container

31‧‧‧開口部 31‧‧‧ openings

32‧‧‧肋部 32‧‧‧ ribs

32a‧‧‧段部 32a‧‧ Section

40、70‧‧‧第1栓 40, 70‧‧‧1st bolt

41、71‧‧‧栓主體 41, 71‧‧‧

41a、71a‧‧‧孔(母型嵌合部) 41a, 71a‧‧ holes (female fittings)

41b、71b‧‧‧環狀凹部(母型嵌合部) 41b, 71b‧‧‧ annular recess (female fitting)

41c、71c‧‧‧前端側部分 41c, 71c‧‧‧ front side section

41d、71d‧‧‧錐面 41d, 71d‧‧‧ cone

42、72‧‧‧鍔部 42. 72‧‧‧锷

42a、72a‧‧‧嵌合凹部 42a, 72a‧‧‧ fitting recess

42b、72b‧‧‧抵接部 42b, 72b‧‧‧Apartment

42c、72c‧‧‧墨水通路 42c, 72c‧‧‧ ink path

50‧‧‧第2栓 50‧‧‧2nd bolt

51‧‧‧圓筒狀主體 51‧‧‧Cylindrical body

51a‧‧‧通過孔 51a‧‧‧through hole

51b‧‧‧錐面 51b‧‧‧ Cone

52‧‧‧環狀外周部 52‧‧‧Circular outer circumference

52a‧‧‧嵌合凸部 52a‧‧‧ fitting convex

80‧‧‧栓 80‧‧‧ bolt

81‧‧‧圓柱突起 81‧‧‧ cylindrical protrusion

第1A圖至第1C圖顯示出包含本發明之實施形態的墨水匣的筆具。第1A圖是顯示前述筆具的垂直方向的剖面圖。第1B圖是顯示前述筆具的水平方向的剖面圖。第1C圖是第1B圖的局部放大圖。 Figs. 1A to 1C show a writing instrument including an ink cartridge according to an embodiment of the present invention. Fig. 1A is a cross-sectional view showing the vertical direction of the above-described writing instrument. Fig. 1B is a cross-sectional view showing the horizontal direction of the above-described writing instrument. Fig. 1C is a partial enlarged view of Fig. 1B.

第2A圖是顯示第1A圖所示的前述墨水匣被安裝在筆具主體之前的狀態的垂直方向的剖面圖。第2B圖是第2A圖的局部放大圖。 Fig. 2A is a cross-sectional view showing a vertical direction of the state in which the ink cartridge shown in Fig. 1A is attached to the writing instrument body. Fig. 2B is a partial enlarged view of Fig. 2A.

第3A圖是顯示構成前述墨水匣的第1栓的斜視圖。第3B圖是顯示構成前述墨水匣的第2栓的斜視圖。第3C圖是顯示構成前述筆具主體的中間構件的斜視圖。 Fig. 3A is a perspective view showing the first plug constituting the ink cartridge. Fig. 3B is a perspective view showing the second plug constituting the ink cartridge. Fig. 3C is a perspective view showing the intermediate member constituting the above-described writing instrument body.

第4A圖至第4C圖是顯示直到前述墨水匣被安裝在前述筆具主體為止的過程的垂直方向的要部剖面圖。第4D圖至第4F圖是與第4A圖至第4C圖分別相對應的水平方向的要部剖面圖。 4A to 4C are cross-sectional views of essential parts showing a vertical direction of the process until the ink cartridge is attached to the writing instrument body. 4D to 4F are cross-sectional views of essential parts in the horizontal direction corresponding to the fourth to fourth embodiments, respectively.

第5A圖至第5C圖是顯示直到前述墨水匣從前述筆具主體被卸下為止的過程的垂直方向的要部剖面圖。第5D圖至第5F圖是與第5A圖至第5C圖分別相對應的水平方向的要部剖面圖。 5A to 5C are cross-sectional views of essential parts showing a vertical direction of the process until the ink cartridge is removed from the writing instrument body. 5D to 5F are cross-sectional views of essential parts in the horizontal direction corresponding to the fifth to fifth embodiments, respectively.

第6A圖是顯示包含前述墨水匣的其他筆具的垂直方向的剖面圖。第6B圖及第6C圖是顯示直到前述墨水匣被安裝在前述其他筆具之筆具主體為止的過程的垂直方向的要部剖面圖。 Fig. 6A is a cross-sectional view showing the vertical direction of another writing instrument including the ink cartridge described above. FIGS. 6B and 6C are cross-sectional views of essential parts showing a vertical direction of the process until the ink cartridge is attached to the writing instrument body of the other pen.

第7A圖至第7D圖是顯示本發明之第2實施形態的墨水匣。第7A圖是顯示構成前述墨水匣的第1栓的斜視圖。第7B圖是顯示構成前述墨水匣的容器的斜視圖。第7C圖及第7D圖是前述容器的剖面圖。 7A to 7D are ink cartridges showing a second embodiment of the present invention. Fig. 7A is a perspective view showing the first plug constituting the ink cartridge. Fig. 7B is a perspective view showing a container constituting the ink cartridge. 7C and 7D are cross-sectional views of the aforementioned container.

第8A圖是顯示本發明之第2實施形態的筆具主體的中間構件的斜視圖。第8B圖是顯示前述中間構件的突起部的放大圖。 Fig. 8A is a perspective view showing an intermediate member of the writing instrument body according to the second embodiment of the present invention. Fig. 8B is an enlarged view showing a projection of the intermediate member.

第9A圖是顯示前述突起部的平面圖。第9B圖是顯示前述突起部的側面圖。 Fig. 9A is a plan view showing the aforementioned protrusions. Fig. 9B is a side view showing the above-mentioned protrusion.

第10圖是顯示前述中間構件及圓板狀的栓的剖面圖。 Fig. 10 is a cross-sectional view showing the intermediate member and the disk-shaped plug.

第11A圖及第11B圖是顯示安裝有具備墨水防漏機構的墨水匣的前述筆具主體者。第11A圖是垂直方向的要部剖面圖，第11B圖是水平方向的要部剖面圖。 11A and 11B are views showing the above-described pen main body to which an ink cartridge having an ink leakage preventing mechanism is attached. Fig. 11A is a cross-sectional view of an essential part in the vertical direction, and Fig. 11B is a cross-sectional view of an essential part in the horizontal direction.

第12A圖至第12C圖是顯示直到不具墨水防漏機構的墨水匣被安裝在前述筆具主體為止的過程的水平方向的要部剖面圖。第12D圖是與第12C圖相對應的垂直方向的要部剖面圖。 12A to 12C are cross-sectional views of essential parts in the horizontal direction showing a process until the ink cartridge having no ink leakage preventing mechanism is attached to the writing instrument body. Fig. 12D is a cross-sectional view of an essential part in the vertical direction corresponding to Fig. 12C.

第13A圖是顯示本發明之第3實施形態的筆具主體的中間構件的要部剖面圖。第13B圖是顯示安裝有不具備墨水防漏機構的墨水匣的前述筆具主體的水平方向的要部剖面圖。 Fig. 13A is a cross-sectional view of an essential part showing an intermediate member of a writing instrument body according to a third embodiment of the present invention. Fig. 13B is a cross-sectional view of an essential part in the horizontal direction of the above-described writing instrument main body to which an ink cartridge having no ink leakage preventing mechanism is attached.

以下，針對本發明之墨水匣及筆具的實施形態，一邊參照圖式一邊加以說明。此外，本發明之墨水匣及筆具並不限定於以下所說明的實施形態。 Hereinafter, embodiments of the ink cartridge and the writing instrument of the present invention will be described with reference to the drawings. Further, the ink cartridge and the writing instrument of the present invention are not limited to the embodiments described below.

〈筆具〉 <penning tool>

如第1A圖及第1B圖所示，本實施形態的筆具1包含筆具主體2及墨水匣3。墨水匣3被收容在筆具主體2的軸筒11內。軸筒11由前軸11A及後軸11B構成。前軸11A與後軸11B藉由螺絲的螺合而結合成可裝卸。收容在軸筒11內的墨水匣3可透過從前軸11A卸下後軸11B來更換(參照第2A圖)。 As shown in FIGS. 1A and 1B, the writing instrument 1 of the present embodiment includes a writing instrument body 2 and an ink cartridge 3. The ink cartridge 3 is housed in the barrel 11 of the writing instrument body 2. The shaft barrel 11 is composed of a front shaft 11A and a rear shaft 11B. The front shaft 11A and the rear shaft 11B are coupled to be detachable by screwing of screws. The ink cartridge 3 accommodated in the barrel 11 can be replaced by removing the rear shaft 11B from the front shaft 11A (see FIG. 2A).

〈墨水匣〉 <Ink cartridges>

如第2A圖所示，本實施形態之墨水匣3包含：收容墨水的筒狀的容器30；以及將容器30之開口部31加以密閉的栓40、50。 As shown in FIG. 2A, the ink cartridge 3 of the present embodiment includes a cylindrical container 30 that stores ink, and plugs 40 and 50 that seal the opening 31 of the container 30.

容器30是在前端設有開口部31，且在後端具有底部的圓筒狀的零件。在容器30內收容有未圖示的墨水。在容器30後方的內周面隔著等間隔形成有複數個肋部32。各肋部32使容器30內的墨水之流動順暢。又，各肋部32的前端面形成位於開口部31後方的複數個段部32a。 The container 30 is a cylindrical member having an opening portion 31 at the front end and a bottom portion at the rear end. Ink (not shown) is accommodated in the container 30. A plurality of ribs 32 are formed on the inner circumferential surface behind the container 30 at equal intervals. Each rib 32 smoothes the flow of ink in the container 30. Moreover, the front end surface of each rib 32 forms a plurality of segment portions 32a located behind the opening portion 31.

容器30藉由合成樹脂的射出成形或吹氣成形而製造。在容器30的材料例如適用聚丙烯等合成樹脂。容器30較佳為藉由透明或半透明的合成樹脂來製造，以便可辨識收容在其內部的墨水的顏色及殘量。容器30的開口部較佳為具有13mm以上23mm以下的外徑。例如，容器30之開口部的外徑可設為大約18mm。藉此，筆具1的軸筒11被抑制在適度的粗細。另一方面，容器30的開口部較佳為具有10至22mm之範圍內的內徑。例如，容器30之開口部的內徑更佳為16至17mm的範圍內。藉此，可獲得容器30的足夠強度，並且可在容器30內收容足夠量的墨水。 The container 30 is manufactured by injection molding or blow molding of a synthetic resin. The material of the container 30 is, for example, a synthetic resin such as polypropylene. The container 30 is preferably made of a transparent or translucent synthetic resin so as to be able to recognize the color and residual amount of the ink contained therein. The opening of the container 30 preferably has an outer diameter of 13 mm or more and 23 mm or less. For example, the outer diameter of the opening of the container 30 can be set to be about 18 mm. Thereby, the barrel 11 of the writing instrument 1 is suppressed to a moderate thickness. On the other hand, the opening of the container 30 preferably has an inner diameter in the range of 10 to 22 mm. For example, the inner diameter of the opening portion of the container 30 is more preferably in the range of 16 to 17 mm. Thereby, sufficient strength of the container 30 can be obtained, and a sufficient amount of ink can be accommodated in the container 30.

作為收容在容器30內的墨水，例如適用筆記板用油性墨水。筆記板用油性墨水含有溶劑及添加劑。在筆記板用油性墨水的溶劑例如使用混合了乙醇及異丙醇 而成的溶劑。並且，在筆記板用油性墨水的添加劑例如使用顏料、樹脂、剝離劑等添加劑。筆記板用油性墨水由於含有上述溶劑及添加劑而成為筆跡的乾燥性及消去性良好者。此外，收容在容器30內的墨水並沒有特別的限定。收容在容器30內的墨水例如亦可為不含剝離劑的油性墨水、或是以水作為主要溶媒的水性墨水。 As the ink contained in the container 30, for example, an oil-based ink for a clipboard is used. The oil-based ink for the clipboard contains solvents and additives. In the solvent of the oil-based ink on the clipboard, for example, ethanol and isopropanol are mixed. The solvent formed. Further, an additive such as a pigment, a resin, or a release agent is used as an additive for the oil-based ink for the clipboard. The oil-based ink for the clipboard has a good dryness and erasability of the handwriting due to the inclusion of the above-mentioned solvent and additives. Further, the ink contained in the container 30 is not particularly limited. The ink contained in the container 30 may be, for example, an oil-based ink containing no release agent or an aqueous ink containing water as a main solvent.

在此，本實施形態的墨水匣3具備墨水防漏機構。該墨水防漏機構係構成為在墨水匣3從筆具主體2被卸下時，利用栓40、50再度將容器30的開口部31加以密閉。此外，本實施形態的栓40、50的構造是可藉由適合墨水防漏機構的筆具主體2、以及不適合墨水防漏機構的第6A圖的筆具主體4雙方而開放。 Here, the ink cartridge 3 of the present embodiment is provided with an ink leakage preventing mechanism. The ink leakage preventing mechanism is configured to seal the opening 31 of the container 30 again by the plugs 40 and 50 when the ink cartridge 3 is detached from the writing instrument body 2. Further, the structures of the plugs 40 and 50 of the present embodiment can be opened by both the writing instrument body 2 suitable for the ink leakage preventing mechanism and the writing instrument body 4 of Fig. 6A which is not suitable for the ink leakage preventing mechanism.

如第2B圖所示，墨水匣3的栓是由第1栓40及第2栓50構成。第1栓40與第2栓50藉由相互嵌合而構成將容器30之開口部31加以密閉的單一的栓。分離狀態的第1栓40及第2栓50係顯示於第3A圖及第3B圖。 As shown in FIG. 2B, the plug of the ink cartridge 3 is composed of the first plug 40 and the second plug 50. The first plug 40 and the second plug 50 are fitted to each other to form a single plug that seals the opening 31 of the container 30. The first plug 40 and the second plug 50 in the separated state are shown in FIGS. 3A and 3B.

如第2B圖及第3A圖所示，第1栓40是由圓筒狀的栓主體41及四個鍔部42構成。栓主體41係被嵌合在設於第2栓50的墨水的通過孔51a。在栓主體41內形成有僅於前方開口的孔41a。孔41a並未貫通栓主體41。在孔41a的內周面設有環狀凹部41b。 As shown in FIGS. 2B and 3A, the first plug 40 is composed of a cylindrical plug body 41 and four flange portions 42. The plug main body 41 is fitted into the ink passage hole 51a provided in the second plug 50. A hole 41a that is open only in the front is formed in the plug body 41. The hole 41a does not penetrate the plug body 41. An annular recessed portion 41b is provided on the inner circumferential surface of the hole 41a.

如第1C圖所示，孔41a及環狀凹部41b構成用來與筆具主體2之突起部22嵌合的母型嵌合部。亦即，在筆具主體2之突起部22的前端設有作為公型嵌合部 的小突起22A。小突起22A具有一對凸部22a。突起部22的小突起22A被***至栓主體41的孔41a時，一對凸部22a會被嵌合在環狀凹部41b的任一部位。 As shown in FIG. 1C, the hole 41a and the annular recessed portion 41b constitute a female fitting portion for fitting with the protruding portion 22 of the writing instrument body 2. That is, the front end of the protrusion 22 of the writing instrument body 2 is provided as a male fitting portion. Small protrusion 22A. The small protrusion 22A has a pair of convex portions 22a. When the small projection 22A of the projection 22 is inserted into the hole 41a of the plug main body 41, the pair of convex portions 22a are fitted to any portion of the annular recess 41b.

在此，栓主體41的前端側部分41c係使厚度稍薄。厚度較薄的前端側部分41c容易承受外力而變形。藉此，栓主體41的前端側部分41c會順利地嵌合至第2栓50的通過孔51a。此外，在栓主體41之前端側部分41c的圓形端面形成有外周的錐面41d及內周的錐面41d。外周的錐面41d將栓主體41的前端側部分41c引導至第2栓50的通過孔51a當中。藉此，栓主體41的前端側部分41c會更順利地嵌合至第2栓50的通過孔51a。另一方面，內周的錐面41d將筆具主體2的小突起22A引導至栓主體41的孔41a當中。藉此，小突起22A的凸部22a就不會衝撞到孔41a的入口。其結果，小突起22A的凸部22a會更順利地嵌合至孔41a內的環狀凹部41b。 Here, the front end side portion 41c of the plug main body 41 is made thinner in thickness. The front end side portion 41c having a small thickness is easily deformed by an external force. Thereby, the distal end side portion 41c of the plug main body 41 is smoothly fitted to the through hole 51a of the second plug 50. Further, a circular end surface of the end side portion 41c before the plug main body 41 is formed with a tapered surface 41d of the outer circumference and a tapered surface 41d of the inner circumference. The outer peripheral tapered surface 41d guides the front end side portion 41c of the plug main body 41 into the through hole 51a of the second plug 50. Thereby, the distal end side portion 41c of the plug main body 41 is more smoothly fitted to the through hole 51a of the second plug 50. On the other hand, the tapered surface 41d of the inner circumference guides the small projection 22A of the writing instrument main body 2 into the hole 41a of the plug main body 41. Thereby, the convex portion 22a of the small projection 22A does not collide with the entrance of the hole 41a. As a result, the convex portion 22a of the small projection 22A is more smoothly fitted into the annular concave portion 41b in the hole 41a.

如第2B圖及第3A圖所示，四個鍔部42在栓主體41的後端隔著等間隔設置成放射狀。鍔部42是由折彎成直角的內側部分及外側部分構成，具有扇形的整體形狀。內側部分在鍔部42的前面形成嵌合凹部42a。外側部分在鍔部42的後面形成抵接部42b。嵌合凹部42a及抵接部42b都具有圓弧形狀。嵌合凹部42a係嵌合在後述之第2栓50的圓筒狀主體51。另一方面，抵接部42b係抵接於上述容器30的段部32a。鍔部42彼此之間的四個間隔分別形成開縫狀的墨水通路42c。當第1栓40與第2栓 50的嵌合被解除時，容器30內的墨水會通過墨水通路42c流向開口部31側。然後，墨水會通過第2栓50的通過孔51a而被供應至筆具主體2(或6)。 As shown in FIGS. 2B and 3A, the four crotch portions 42 are radially provided at equal intervals at the rear end of the plug main body 41. The crotch portion 42 is composed of an inner portion and an outer portion that are bent at right angles, and has a fan-shaped overall shape. The inner portion forms a fitting recess 42a in front of the crotch portion 42. The outer portion forms an abutting portion 42b behind the crotch portion 42. Both the fitting recess 42a and the abutting portion 42b have an arc shape. The fitting recess 42a is fitted to the cylindrical body 51 of the second plug 50 to be described later. On the other hand, the abutting portion 42b abuts against the segment portion 32a of the container 30. The four partitions between the jaws 42 form a slit-like ink passage 42c. When the first pin 40 and the second pin When the fitting of 50 is released, the ink in the container 30 flows toward the opening 31 side through the ink passage 42c. Then, the ink is supplied to the writing instrument main body 2 (or 6) through the through hole 51a of the second plug 50.

如第2B圖及第3B圖所示，第2栓50是由圓筒狀主體51及環狀外周部52構成。圓筒狀主體51構成上述墨水的通過孔51a。具體而言，通過孔51a是由圓筒狀主體51的內周面構成。通過孔51a在前方及後方雙方開口。通過孔51a後方的開口成為上述第1栓40之栓主體41的入口。在圓筒狀主體51的內周面形成從通過孔51a之大致中央朝向後方擴展的錐面51b。錐面51b將栓主體41的前端側部分41c引導至通過孔51a的中央。藉此，栓主體41的前端側部分41c會更順利地嵌合至第2栓50的通過孔51a。 As shown in FIGS. 2B and 3B, the second plug 50 is composed of a cylindrical main body 51 and an annular outer peripheral portion 52. The cylindrical body 51 constitutes the above-described ink passage hole 51a. Specifically, the through hole 51a is constituted by the inner peripheral surface of the cylindrical body 51. The hole 51a is opened at both the front and the rear. The opening through the rear of the hole 51a serves as an inlet of the plug main body 41 of the first plug 40. A tapered surface 51b that extends rearward from a substantially center of the through hole 51a is formed on the inner circumferential surface of the cylindrical main body 51. The tapered surface 51b guides the front end side portion 41c of the plug main body 41 to the center of the through hole 51a. Thereby, the distal end side portion 41c of the plug main body 41 is more smoothly fitted to the through hole 51a of the second plug 50.

環狀外周部52以包圍圓筒狀主體51之外側的方式設置。環狀外周部52具有圓形的剖面形狀。環狀外周部52的外徑與容器30之開口部31的內徑相對應。如第3B圖所示，在環狀外周部52沿著圓形的側面設有嵌合凸部52a。如第2B圖所示，嵌合凸部52a係嵌合在設於容器30之開口部31之內周面的環狀凹部。例如，本實施形態之嵌合凸部52a係成為對於環狀凹部進行越過嵌合的構造。在環狀凹部的前後分別形成有環狀凸部。嵌合凸部52a越過前方的環狀凸部而與其後方的嵌合凹部結合。此外，嵌合凸部52a係成為：在受到朝向容器30後方的力推壓時，會越過後方的環狀凸部而從容器30之開口部31的內 周面脫離的構造。 The annular outer peripheral portion 52 is provided to surround the outer side of the cylindrical body 51. The annular outer peripheral portion 52 has a circular cross-sectional shape. The outer diameter of the annular outer peripheral portion 52 corresponds to the inner diameter of the opening portion 31 of the container 30. As shown in FIG. 3B, the annular outer peripheral portion 52 is provided with a fitting convex portion 52a along the circular side surface. As shown in FIG. 2B, the fitting convex portion 52a is fitted to the annular concave portion provided on the inner circumferential surface of the opening portion 31 of the container 30. For example, the fitting convex portion 52a of the present embodiment has a structure in which the annular concave portion is fitted over the annular concave portion. An annular convex portion is formed in front of and behind the annular concave portion. The fitting convex portion 52a is joined to the fitting concave portion at the rear side beyond the front annular convex portion. Further, the fitting convex portion 52a is formed from the opening portion 31 of the container 30 when the pressing portion is pressed toward the rear of the container 30 and passes over the rear annular convex portion. The structure of the circumferential surface.

在此，針對第1栓40、第2栓50及容器30的開口部31之間的三個嵌合力，一邊參照第2B圖一邊加以說明。第2B圖顯示出未使用的墨水匣3當中的第1栓40、第2栓50及容器30之開口部31的嵌合狀態。亦即，本實施形態的墨水匣3是以第2B圖所示的栓40、50的嵌合狀態在市面上流通。 Here, the three fitting forces between the first plug 40, the second plug 50, and the opening 31 of the container 30 will be described with reference to FIG. 2B. Fig. 2B shows the fitting state of the first plug 40, the second plug 50, and the opening 31 of the container 30 among the unused ink cartridges 3. In other words, the ink cartridge 3 of the present embodiment is distributed on the market in the fitting state of the plugs 40 and 50 shown in Fig. 2B.

在第2B圖當中，第1栓40的栓主體41係嵌合在第2栓50的通過孔51a。將栓主體41與通過孔51a之間的嵌合力稱為「第1嵌合力」。並且，第1栓40的四個鍔部42係嵌合在第2栓50的圓筒狀主體51的後方。將各鍔部42與圓筒狀主體51之間的嵌合力稱為「第2嵌合力」。再者，第2栓50的環狀外周部52係透過嵌合凸部52a而嵌合在容器30之開口部31的內周面。將環狀外周部52與開口部31的內周面之間的嵌合力稱為「第3嵌合力」。 In the second drawing, the plug main body 41 of the first plug 40 is fitted into the through hole 51a of the second plug 50. The fitting force between the plug main body 41 and the passage hole 51a is referred to as "first fitting force". Further, the four crotch portions 42 of the first plug 40 are fitted to the rear of the cylindrical main body 51 of the second plug 50. The fitting force between each of the flange portions 42 and the cylindrical body 51 is referred to as a "second fitting force". In addition, the annular outer peripheral portion 52 of the second plug 50 is fitted to the inner peripheral surface of the opening portion 31 of the container 30 through the fitting convex portion 52a. The fitting force between the annular outer peripheral portion 52 and the inner peripheral surface of the opening portion 31 is referred to as a "third fitting force".

第3嵌合力比第1嵌合力與第2嵌合力的總和大。亦即，即使是超過第1嵌合力與第2嵌合力之總和的力施加在第1栓40的情況，第2栓50與容器30的開口部31之間的嵌合也不會被解除。在該情況，僅有第1栓40與第2栓50之間的嵌合會被解除。第2栓50與容器30的開口部31之間的嵌合在有超過第3嵌合力的力施加在第2栓50的情況才會被解除。 The third fitting force is larger than the sum of the first fitting force and the second fitting force. In other words, even when a force exceeding the sum of the first fitting force and the second fitting force is applied to the first plug 40, the fitting between the second plug 50 and the opening 31 of the container 30 is not released. In this case, only the fitting between the first plug 40 and the second plug 50 is released. The fitting between the second plug 50 and the opening 31 of the container 30 is released when a force exceeding the third fitting force is applied to the second plug 50.

另一方面，第1嵌合力被設定成比較小的 值，以使第1栓40與第2栓50之間的嵌合變得容易。藉此，第1栓40可在與第2栓50之通過孔51a的嵌合被解除之後再度嵌合至通過孔51a。第2嵌合力係補足第1嵌合力，以使在未使用的墨水匣3當中之第1栓40與第2栓50之間的嵌合不會輕易地被解除。 On the other hand, the first fitting force is set to be relatively small The value is such that the fitting between the first plug 40 and the second plug 50 is facilitated. Thereby, the first plug 40 can be fitted to the through hole 51a again after the fitting with the through hole 51a of the second plug 50 is released. The second fitting force complements the first fitting force so that the fitting between the first plug 40 and the second plug 50 among the unused ink cartridges 3 is not easily released.

在此，第1嵌合力與第2嵌合力的總和例如設為0.5kgf至4kgf的範圍內，較佳係設為1kgf至2kgf的範圍內。第1嵌合力與第2嵌合力的總和例如可設為1.5kgf。另一方面，第3嵌合力例如設為4kgf至10kgf的範圍內，較佳係設為4kgf至8kgf的範圍內。第3嵌合力例如可設為7kgf。關於第1栓40與第2栓50之間的再嵌合力的具體例容後敘述。 Here, the total of the first fitting force and the second fitting force is, for example, in the range of 0.5 kgf to 4 kgf, and preferably in the range of 1 kgf to 2 kgf. The sum of the first fitting force and the second fitting force can be, for example, 1.5 kgf. On the other hand, the third fitting force is, for example, in the range of 4 kgf to 10 kgf, and preferably in the range of 4 kgf to 8 kgf. The third fitting force can be, for example, 7 kgf. The specific example of the re-fitting force between the first plug 40 and the second plug 50 will be described later.

再者，在用來使第1、第2及第3嵌合力產生的「嵌合」中可適用各種構造。在構成墨水匣3的容器30、第1栓40及第2栓50中可例如適用越過嵌合、面嵌合或凹凸嵌合各種構造。越過嵌合是指第1凸部越過第2凸部而結合的構造。面嵌合是指第1面與第2面密接而結合的構造。凹凸嵌合是指凹形狀與凸形狀一致而結合的構造。 Further, various structures can be applied to the "fitting" for generating the first, second, and third fitting forces. In the container 30, the first plug 40, and the second plug 50 constituting the ink cartridge 3, various structures such as fitting, surface fitting, or uneven fitting can be applied, for example. The over-fitting means a structure in which the first convex portion is joined to the second convex portion. The surface fitting refers to a structure in which the first surface and the second surface are in close contact with each other. The concave-convex fitting refers to a structure in which a concave shape and a convex shape are combined and joined.

〈筆具主體〉 <pen body>

如第1A圖及第2A圖所示，本實施形態的筆具主體2包含軸筒11、筆尖12、墨水吸藏體13、蓋子14及中間構件20。如上所述，本實施形態的軸筒11由前軸11A及後 軸11B構成。筆尖12、墨水吸藏體13及中間構件20都設在前軸11A。以下，針對前軸11A及後軸11B加以說明，並在其後針對筆尖12、墨水吸藏體13及中間構件20加以說明。 As shown in FIGS. 1A and 2A, the writing instrument body 2 of the present embodiment includes a barrel 11, a pen tip 12, an ink absorbing body 13, a cover 14, and an intermediate member 20. As described above, the shaft barrel 11 of the present embodiment is composed of the front shaft 11A and the rear. The shaft 11B is constructed. The nib 12, the ink absorbing body 13, and the intermediate member 20 are all provided on the front shaft 11A. Hereinafter, the front axle 11A and the rear axle 11B will be described, and thereafter, the pen tip 12, the ink absorbing body 13, and the intermediate member 20 will be described.

前軸11A及後軸11B是中空的筒狀體，藉由合成樹脂的射出成形而製造。在前軸11A及後軸11B的材料例如適用聚丙烯、聚乙烯等合成樹脂。 The front shaft 11A and the rear shaft 11B are hollow cylindrical bodies and are produced by injection molding of synthetic resin. The material of the front shaft 11A and the rear shaft 11B is, for example, a synthetic resin such as polypropylene or polyethylene.

如第2A圖所示，在前軸11A的前端設有用來保持筆尖12的前端孔。該前端孔與前軸11A的內部空間連通。保持在前端孔的筆尖12的後端係突出至前軸11A的內部空間。在此，在前端孔的內周面形成未圖示的肋部。該肋部藉由壓接在筆尖12的外周面而將筆尖12保持在前端孔。又，該肋部在筆尖12的外周面與前端孔的內周面之間形成空氣通路。 As shown in Fig. 2A, a front end hole for holding the pen tip 12 is provided at the front end of the front shaft 11A. The front end hole communicates with the inner space of the front shaft 11A. The rear end of the pen tip 12 held at the front end hole protrudes to the inner space of the front shaft 11A. Here, a rib (not shown) is formed on the inner peripheral surface of the front end hole. The rib is held at the front end hole by crimping on the outer peripheral surface of the pen tip 12. Further, the rib forms an air passage between the outer circumferential surface of the pen tip 12 and the inner circumferential surface of the front end hole.

在前軸11A之內部空間的前方收容有墨水吸藏體13。上述筆尖12的後端被***至墨水吸藏體13當中。在前軸11A的內周面形成有與墨水吸藏體13相對應的複數條肋部。各肋部相互隔著間隔地朝前軸11A的前後方向平行延伸。各肋部藉由壓接在墨水吸藏體13的外周面而將墨水吸藏體13保持在前軸11A的內部空間。又，各肋部在墨水吸藏體13的外周面與前軸11A的內周面之間形成空氣通路。 The ink absorbing body 13 is housed in front of the internal space of the front shaft 11A. The rear end of the pen tip 12 described above is inserted into the ink absorbing body 13. A plurality of ribs corresponding to the ink absorbing body 13 are formed on the inner circumferential surface of the front shaft 11A. Each of the ribs extends parallel to the front-rear direction of the front shaft 11A with a gap therebetween. Each of the ribs is held by the outer peripheral surface of the ink accommodating body 13 to hold the ink absorbing body 13 in the inner space of the front shaft 11A. Further, each rib forms an air passage between the outer circumferential surface of the ink accommodating body 13 and the inner circumferential surface of the front shaft 11A.

在前軸11A之內部空間當中的墨水吸藏體13的後方嵌合有中間構件20。在前軸11A的內周面設有未 圖示的環狀肋部。該環狀肋部係嵌合在中間構件20的外周面。藉此，中間構件20被保持在前軸11A之內部空間當中的預定位置。上述墨水匣3係安裝在中間構件20。 The intermediate member 20 is fitted to the rear of the ink accommodating body 13 in the internal space of the front axle 11A. The inner peripheral surface of the front axle 11A is provided with an The illustrated annular rib. The annular rib is fitted to the outer peripheral surface of the intermediate member 20. Thereby, the intermediate member 20 is held at a predetermined position among the internal spaces of the front axle 11A. The ink cartridge 3 described above is attached to the intermediate member 20.

在前軸11A後方的內周面設有母螺紋。另一方面，在後軸11B前方的外周面設有公螺絲。前軸11A與後軸11B藉由該等母螺紋與公螺絲的螺合而結合成可裝卸。後軸11B包覆被安裝在中間構件20的墨水匣3。後軸11B較佳為藉由透明或半透明的合成樹脂來製造，以便可辨識被收容在墨水匣3內的墨水的顏色及殘量。 A female thread is provided on the inner circumferential surface behind the front shaft 11A. On the other hand, a male screw is provided on the outer peripheral surface in front of the rear axle 11B. The front shaft 11A and the rear shaft 11B are coupled to be detachable by screwing the female threads and the male screws. The rear shaft 11B covers the ink cartridge 3 mounted on the intermediate member 20. The rear shaft 11B is preferably made of a transparent or translucent synthetic resin so as to be able to recognize the color and the residual amount of the ink contained in the ink cartridge 3.

本實施形態的筆尖12是例如簽字筆頭。簽字筆頭是例如將聚酯纖維、丙烯酸纖維、尼龍纖維等合成樹脂製纖維加工成棒狀而製造。圖式所示的筆尖12的前端被研削成砲彈狀。筆尖12的前端形狀並沒有特別的限定。筆尖12的前端例如亦可被加工成鑿子狀。此外，筆尖12並不限於簽字筆頭。作為筆尖12，可例如適用原子筆尖或鋼筆的筆尖等。 The pen tip 12 of the present embodiment is, for example, a signature pen tip. The signature pen head is manufactured by processing, for example, a synthetic resin fiber such as polyester fiber, acrylic fiber or nylon fiber into a rod shape. The front end of the nib 12 shown in the drawing is ground into a bullet shape. The shape of the front end of the nib 12 is not particularly limited. The front end of the nib 12 can also be processed into a chisel shape, for example. Further, the nib 12 is not limited to the signature pen tip. As the pen tip 12, for example, a tip of a ballpoint pen or a pen tip of a pen or the like can be applied.

本實施形態的墨水吸藏體13例如由被加工成圓柱狀的聚酯纖維等合成樹脂製纖維構成。墨水吸藏體13的外周面由圓筒狀的薄膜包覆。作為薄膜的材料，例如適用聚對苯二甲酸乙二酯。墨水吸藏體13只要可暫時保持墨水，則其構造沒有特別的限定。作為墨水吸藏體13，例如亦可適用構成鋼筆的筆芯。筆芯是設有多數個水平凹槽的皺褶狀構件，可暫時保持墨水。 The ink accommodating body 13 of the present embodiment is composed of, for example, a synthetic resin fiber such as a polyester fiber processed into a columnar shape. The outer peripheral surface of the ink absorbing body 13 is covered with a cylindrical film. As a material of the film, for example, polyethylene terephthalate is used. The ink absorbing body 13 is not particularly limited as long as it can temporarily hold the ink. As the ink accommodating body 13, for example, a refill constituting a pen can be applied. The refill is a pleated member with a plurality of horizontal grooves to temporarily hold the ink.

本實施形態之中間構件20的構造顯示於第 1A圖、第1B圖、第2A圖及第3C圖。中間構件20例如藉由合成樹脂的射出成形而製造。在中間構件20的材料例如適用聚丙烯、聚乙烯等合成樹脂。中間構件20是用來將墨水匣3安裝在筆具主體2的零件。收容在墨水匣3內的墨水經由中間構件20被供應至墨水吸藏體13。 The structure of the intermediate member 20 of the present embodiment is shown in the first 1A, 1B, 2A, and 3C. The intermediate member 20 is produced, for example, by injection molding of a synthetic resin. The material of the intermediate member 20 is, for example, a synthetic resin such as polypropylene or polyethylene. The intermediate member 20 is a member for mounting the ink cartridge 3 to the writing instrument body 2. The ink contained in the ink cartridge 3 is supplied to the ink absorbing body 13 via the intermediate member 20.

如第2A圖所示，中間構件20具有用來劃分前軸11A之內部空間的間隔壁。在該間隔壁形成有兩個貫通孔21a。在間隔壁前方的面設有與各貫通孔21a連通的兩個管21。另一方面，在間隔壁後方的面設有突起部22及密閉連接部23。此外，在中間構件20的外周面形成有環狀段部。中間構件20嵌合在形成於前軸11A之內周面的前述環狀肋部。藉此，中間構件20被保持在前軸11A的內部空間。前軸11A的內部空間藉由中間構件20而密閉，僅有形成在間隔壁的兩個貫通孔21a與內部空間的內外連通。兩個貫通孔21a用來使內部空間中的空氣與墨水交換。兩個管21的前端側都***通在墨水吸藏體13。墨水通過一方的管21被供應至墨水吸藏體13。隨著墨水的供應，空氣會從內部空間被推出。空氣係通過另一方的管21被排出至內部空間之外。 As shown in Fig. 2A, the intermediate member 20 has partition walls for dividing the internal space of the front axle 11A. Two through holes 21a are formed in the partition wall. Two tubes 21 communicating with the respective through holes 21a are provided on the surface in front of the partition wall. On the other hand, a projection 22 and a sealing connection portion 23 are provided on the surface behind the partition wall. Further, an annular segment portion is formed on the outer circumferential surface of the intermediate member 20. The intermediate member 20 is fitted to the annular rib formed on the inner circumferential surface of the front shaft 11A. Thereby, the intermediate member 20 is held in the inner space of the front shaft 11A. The inner space of the front shaft 11A is sealed by the intermediate member 20, and only the two through holes 21a formed in the partition wall communicate with the inner and outer sides of the inner space. Two through holes 21a are used to exchange air in the internal space with the ink. The front end sides of the two tubes 21 are inserted into the ink absorbing body 13. The ink is supplied to the ink absorbing body 13 through one of the tubes 21. As the ink is supplied, air is pushed out from the interior space. The air is discharged to the outside of the internal space through the other tube 21.

突起部22僅使墨水匣3的第1栓40開放，並且使墨水匣3的墨水防漏機構有效動作。突起部22配置在中間構件20之間隔壁的中央。突起部22的位置與墨水匣3之第1栓40的位置相對應。如上所述，在突起部22的前端設有小突起22A。小突起22A構成用來與第1栓40 嵌合的公型嵌合部。小突起22A具有與設在第1栓40之栓主體41的孔41a的直徑相對應的寬度。如第1C圖及第3C圖所示，在小突起22A的兩側面形成有一對凸部22a。突起部22的小突起22A被***至栓主體41的孔41a時，一對凸部22a會被嵌合在環狀凹部41b的任一部位。突起部22係一邊維持凸部22a與環狀凹部41b的嵌合一邊僅將第1栓40向後方推壓，以使第1栓40與第2栓50之間的嵌合解除(參照第1A圖及第1B圖)。 The protruding portion 22 opens only the first plug 40 of the ink cartridge 3, and effectively operates the ink leakage preventing mechanism of the ink cartridge 3. The protruding portion 22 is disposed at the center of the partition wall of the intermediate member 20. The position of the protrusion 22 corresponds to the position of the first plug 40 of the ink cartridge 3. As described above, the small protrusion 22A is provided at the front end of the protrusion 22. The small protrusion 22A is configured to be used with the first pin 40 A fitted male fitting portion. The small projection 22A has a width corresponding to the diameter of the hole 41a provided in the plug main body 41 of the first plug 40. As shown in FIGS. 1C and 3C, a pair of convex portions 22a are formed on both side faces of the small projections 22A. When the small projection 22A of the projection 22 is inserted into the hole 41a of the plug main body 41, the pair of convex portions 22a are fitted to any portion of the annular recess 41b. The protrusion 22 is configured to press the first plug 40 rearward while maintaining the fitting of the convex portion 22a and the annular concave portion 41b, so that the fitting between the first plug 40 and the second plug 50 is released (see 1A). Figure and Figure 1B).

在此，本實施形態的突起部22具有將墨水及空氣所流動的路徑劃分為兩個的功能。亦即，突起部22位在兩個貫通孔21a之間。在突起部22的側面形成有分別與各貫通孔21a相對應的兩個流路22b。各流路22b是由朝前後方向延伸的剖面大致半圓形的凹槽部構成。如第1A圖及第1B圖所示，突起部22具有與第2栓50之通過孔51a的直徑大致相等的短邊方向的寬度。這種突起部22***通在通過孔51a時，該通過孔51a會被劃分成兩個。在通過孔51a的一方有突起部22的一方流路22b通過。在通過孔51a的另一方有突起部22的另一方流路22b通過。藉此，墨水在突起部22的一方流路22b流動，空氣則在突起部22的另一方流路22b流動。空氣流動的另一方流路22b並不會被墨水封鎖(液密狀態)。藉此，得以保持前軸11A的內部空間與墨水匣3的內壓之均衡。其結果，得以經常穩定地對筆尖12進行墨水的供應，不會發生筆跡不清而可實現穩定的書寫。 Here, the protrusion 22 of the present embodiment has a function of dividing the path through which the ink and the air flow are divided into two. That is, the protruding portion 22 is located between the two through holes 21a. Two flow paths 22b corresponding to the respective through holes 21a are formed on the side faces of the projections 22. Each of the flow paths 22b is constituted by a groove portion having a substantially semicircular cross section extending in the front-rear direction. As shown in FIGS. 1A and 1B, the protruding portion 22 has a width in the short-side direction that is substantially equal to the diameter of the through hole 51a of the second plug 50. When such a projection 22 is inserted through the through hole 51a, the through hole 51a is divided into two. One of the passages 22b having the projections 22 passing through one of the passage holes 51a passes. The other flow path 22b having the protrusion 22 on the other side of the through hole 51a passes. Thereby, the ink flows in one of the flow paths 22b of the projections 22, and the air flows in the other flow path 22b of the projections 22. The other flow path 22b through which the air flows is not blocked by the ink (liquid-tight state). Thereby, the balance between the internal space of the front axle 11A and the internal pressure of the ink cartridge 3 is maintained. As a result, it is possible to constantly supply the ink to the pen tip 12 stably, and it is possible to achieve stable writing without occurrence of unclear handwriting.

密閉連接部23是用來與墨水匣3密閉連接的部分。密閉連接部23由包圍突起部22的筒狀壁部構成。密閉連接部23具有可密閉嵌合在墨水匣3之開口部31之內周面的外周面。藉由這種密閉連接部23，前軸11A的內部空間與墨水匣3的容器30內會以密閉的狀態連通。 The hermetic connection portion 23 is a portion for hermetically connecting to the ink cartridge 3. The hermetic connection portion 23 is constituted by a cylindrical wall portion that surrounds the protrusion portion 22. The hermetic connection portion 23 has an outer peripheral surface that can be hermetically fitted to the inner circumferential surface of the opening portion 31 of the ink cartridge 3. By the hermetic connection portion 23, the inner space of the front shaft 11A communicates with the inside of the container 30 of the ink cartridge 3 in a sealed state.

〈墨水匣的安裝〉 <Installation of ink cartridges>

接下來，針對直到墨水匣3被安裝在筆具主體2為止的過程，一邊參照第2A圖、第2B圖及第4A圖至第4F圖一邊加以說明。 Next, the process until the ink cartridge 3 is attached to the writing instrument body 2 will be described with reference to FIGS. 2A, 2B, and 4A to 4F.

如第2A圖所示，筆具主體2與未使用的墨水匣3是形成相互分離的狀態。未使用的墨水匣3當中的第1栓40與第2栓50的嵌合狀態顯示於第2B圖。未使用的墨水匣3當中，第1栓40之栓主體41的前端側部分41c深深地嵌合至第2栓50之通過孔51a的前端。此外，第1栓40之各鍔部42的嵌合凹部42a嵌合在第2栓50之圓筒狀主體51的後方。藉由第2B圖所示的第1栓40與第2栓50的嵌合狀態，未使用的墨水匣3在市面的流通過程當中不會發生墨水外漏的情形。 As shown in Fig. 2A, the writing instrument main body 2 and the unused ink cartridges 3 are separated from each other. The fitting state of the first plug 40 and the second plug 50 among the unused ink cartridges 3 is shown in FIG. 2B. Among the unused ink cartridges 3, the distal end side portion 41c of the plug body 41 of the first plug 40 is deeply fitted to the distal end of the through hole 51a of the second plug 50. Further, the fitting recess 42a of each of the flange portions 42 of the first plug 40 is fitted to the rear of the cylindrical body 51 of the second plug 50. By the fitting state of the first plug 40 and the second plug 50 shown in FIG. 2B, the ink cartridge 3 that is not used does not leak out of the ink during the circulation of the market.

如第4A圖及第4D圖所示，墨水匣3被***至筆具主體2之前軸11A的後端開口。藉此，中間構件20的突起部22及密閉連接部23被***至墨水匣3的開口部31。突起部22的小突起22A被***至第1栓40的孔41a。此時，形成在突起部22與小突起22A之間的段部(參 照第3C圖)抵接於第1栓40的前端。與此同時，小突起22A的一對凸部22a嵌合在第1栓40之環狀凹部41b的任一部位(參照第1C圖)。另一方面，密閉連接部23的前端部淺淺地被***至墨水匣3的開口部31。 As shown in FIGS. 4A and 4D, the ink cartridge 3 is inserted into the rear end opening of the front shaft 11A of the writing instrument body 2. Thereby, the protruding portion 22 and the sealing connecting portion 23 of the intermediate member 20 are inserted into the opening portion 31 of the ink cartridge 3. The small projection 22A of the projection 22 is inserted into the hole 41a of the first plug 40. At this time, a section formed between the protrusion 22 and the small protrusion 22A is formed. The front end of the first plug 40 is abutted as shown in FIG. 3C. At the same time, the pair of convex portions 22a of the small projections 22A are fitted to any one of the annular concave portions 41b of the first plug 40 (see FIG. 1C). On the other hand, the front end portion of the hermetic connection portion 23 is shallowly inserted into the opening portion 31 of the ink cartridge 3.

如第4B圖及第4E圖所示，墨水匣3朝筆具主體2之前軸11A的後端開口更為***。此時，突起部22僅將第1栓40向後方推壓。藉此，第1栓40之各鍔部42的嵌合凹部42a與第2栓50的圓筒狀主體51之間的嵌合被解除。並且，第1栓40的栓主體41與第2栓50的通過孔51a之間的嵌合會變淺。第2栓50的環狀外周部52與墨水匣3的開口部31之間的嵌合則維持這個狀態。另一方面，密閉連接部23朝墨水匣3的開口部31更為***。 As shown in FIGS. 4B and 4E, the ink cartridge 3 is inserted further toward the rear end opening of the front shaft 11A of the writing instrument body 2. At this time, the protruding portion 22 pushes only the first plug 40 rearward. Thereby, the fitting between the fitting recess 42a of each of the dam portions 42 of the first plug 40 and the cylindrical body 51 of the second plug 50 is released. Further, the fitting between the plug main body 41 of the first plug 40 and the passage hole 51a of the second plug 50 becomes shallow. The fitting between the annular outer peripheral portion 52 of the second plug 50 and the opening portion 31 of the ink cartridge 3 maintains this state. On the other hand, the hermetic connection portion 23 is further inserted into the opening portion 31 of the ink cartridge 3.

如第4C圖及第4F圖所示，然後，墨水匣3完全被***至筆具主體2之前軸11A的後端開口。此時，突起部22係通過第2栓50的通過孔51a。藉此，第1栓40的栓主體41與第2栓50的通過孔51a之間的嵌合被解除。此時，第1栓40之各鍔部42的抵接部42b抵接於墨水匣3之容器30內的段部32a。藉此，第1栓40以維持與小突起22A之嵌合的狀態被保持在突起部22與段部32a之間。另一方面，密閉連接部23完全被***至墨水匣3的開口部31，並且密閉嵌合在開口部31的內周面。藉此，前軸11A的內部空間與墨水匣3的容器30內係以密閉的狀態連通。 As shown in FIGS. 4C and 4F, the ink cartridge 3 is then completely inserted into the rear end opening of the front shaft 11A of the writing instrument body 2. At this time, the protruding portion 22 passes through the through hole 51a of the second plug 50. Thereby, the fitting between the plug main body 41 of the first plug 40 and the passage hole 51a of the second plug 50 is released. At this time, the abutting portion 42b of each of the crotch portions 42 of the first pin 40 abuts against the segment portion 32a in the container 30 of the ink cartridge 3. Thereby, the first plug 40 is held between the protruding portion 22 and the segment portion 32a in a state of being fitted to the small projection 22A. On the other hand, the hermetic connection portion 23 is completely inserted into the opening portion 31 of the ink cartridge 3, and is hermetically fitted to the inner circumferential surface of the opening portion 31. Thereby, the internal space of the front shaft 11A and the inside of the container 30 of the ink cartridge 3 are connected in a sealed state.

容器30內的墨水通過形成在鍔部42彼此之 間的四個墨水通路42c而被供應至第2栓50的通過孔51a。第2栓50的通過孔51a是由突起部22劃分成兩個。墨水通過通過孔51a的一方而被供應至前軸11A的內部空間。隨著墨水的供應，空氣會從前軸11A的內部空間被推出。該空氣通過通過孔51a的另一方而流入容器30內。然後，得以保持前軸11A的內部空間與容器30的內壓之均衡。被供應至前軸11A之內部空間的墨水係被保持在墨水吸藏體13而被供應至筆尖12。 The ink in the container 30 passes through each other formed in the crotch portion 42 The four ink passages 42c are supplied to the through holes 51a of the second plug 50. The passage hole 51a of the second plug 50 is divided into two by the projection 22. The ink is supplied to the inner space of the front axle 11A through one of the through holes 51a. With the supply of ink, air is pushed out from the inner space of the front axle 11A. This air flows into the container 30 through the other side of the through hole 51a. Then, the balance between the internal space of the front axle 11A and the internal pressure of the container 30 is maintained. The ink supplied to the inner space of the front shaft 11A is held by the ink absorbing body 13 and supplied to the pen tip 12.

〈墨水匣的卸下〉 <Unloading of ink cartridges>

接下來，針對直到墨水匣3從筆具主體2被卸下為止的過程，一邊參照第5A圖至第5F圖一邊加以說明。 Next, the process until the ink cartridge 3 is detached from the writing instrument body 2 will be described with reference to FIGS. 5A to 5F.

第5A圖及第5D圖顯示出與第4C圖及第4F圖相同的狀態。然而，第5A圖及第5D圖所示的墨水匣3內的墨水係假定為被使用者使用過者。第5A圖及第5D圖所示的使用完的墨水匣3係從筆具主體2之前軸11A的後端開口被抽出。 Figs. 5A and 5D show the same states as those of Figs. 4C and 4F. However, the ink in the ink cartridge 3 shown in Figs. 5A and 5D is assumed to be used by the user. The used ink cartridges 3 shown in FIGS. 5A and 5D are drawn out from the rear end opening of the front shaft 11A of the writing instrument body 2.

墨水匣3被抽出的過程當中，第2栓50會接近第1栓40。亦即，第1栓40會嵌合在筆具主體2的小突起22A。另一方面，第2栓50會嵌合在墨水匣3的開口部31。在這種構造當中，當墨水匣3朝後方移動時，第2栓50會沿著突起部22的側面朝後方移動。其結果，第2栓50會朝向嵌合在突起部22之小突起22A的第1栓40直行。 During the process in which the ink cartridge 3 is extracted, the second plug 50 approaches the first plug 40. That is, the first plug 40 is fitted to the small projection 22A of the writing instrument body 2. On the other hand, the second plug 50 is fitted to the opening 31 of the ink cartridge 3. In this configuration, when the ink cartridge 3 moves rearward, the second plug 50 moves rearward along the side surface of the projection 22. As a result, the second plug 50 is straight toward the first plug 40 fitted to the small projection 22A of the projection 22.

如第5B圖及第5E圖所示，朝後方移動的第2栓50超越突起部22的側面到達嵌合在小突起22A的第1栓40的外周面。藉此，第1栓40之栓主體41的前端側部分41c會再嵌合於第2栓50的通過孔51a。亦即，第2栓50的通過孔51a藉由第1栓40而再度密閉。其結果，如第5C圖及第5F圖所示，墨水匣3從筆具主體2之前軸11A的後端開口完全被抽出時，會防止殘留在墨水匣3內的墨水漏出。 As shown in FIGS. 5B and 5E, the second plug 50 that moves rearward passes beyond the side surface of the projection 22 to reach the outer peripheral surface of the first plug 40 fitted to the small projection 22A. Thereby, the distal end side portion 41c of the plug main body 41 of the first plug 40 is re-fitted to the through hole 51a of the second plug 50. That is, the passage hole 51a of the second plug 50 is again sealed by the first plug 40. As a result, as shown in FIGS. 5C and 5F, when the ink cartridge 3 is completely withdrawn from the rear end opening of the front shaft 11A of the writing instrument body 2, the ink remaining in the ink cartridge 3 is prevented from leaking.

在此，第5C圖及第5F圖所示的第1栓40與第2栓50之間的再嵌合不需要是第2B圖所示的完全的嵌合狀態。第1栓40與第2栓50之間的再嵌合只要是可將第2栓50之通過孔51a加以密閉直到使用者處分使用完的墨水匣3的短暫期間為止的嵌合狀態即可。第1栓40與第2栓50之間的再嵌合力例如設為0.01kgf至1kgf的範圍內，較佳係設為0.01kgf至0.5kgf的範圍內。第1栓40與第2栓50之間的再嵌合力例如可設為0.3kgf。 Here, the re-engagement between the first plug 40 and the second plug 50 shown in FIGS. 5C and 5F does not need to be in a completely fitted state as shown in FIG. 2B. The re-engagement between the first plug 40 and the second plug 50 may be a fitting state in which the passage hole 51a of the second plug 50 can be sealed until a short period of time in which the user has finished using the ink cartridge 3. The re-engagement force between the first plug 40 and the second plug 50 is, for example, in the range of 0.01 kgf to 1 kgf, and preferably in the range of 0.01 kgf to 0.5 kgf. The re-engagement force between the first plug 40 and the second plug 50 can be, for example, 0.3 kgf.

〈墨水匣之對於其他筆具的適用〉 <Applicability of ink cartridges to other pens>

如上所述，本實施形態的墨水匣3係與筆具主體2的突起部22協同動作，使墨水防漏機構有效動作。此外，本實施形態的墨水匣3亦可使用在如第6A圖所示之不適合墨水防漏機構的筆具主體4。 As described above, the ink cartridge 3 of the present embodiment cooperates with the projection 22 of the writing instrument body 2 to effectively operate the ink leakage preventing mechanism. Further, the ink cartridge 3 of the present embodiment can also be used as the writing instrument body 4 which is not suitable for the ink leakage preventing mechanism as shown in Fig. 6A.

第6A圖所示的筆具主體4除了中間構件60之外具有與上述筆具主體2相同的構造。第6A圖的中間 構件60是用來將墨水匣3安裝在筆具主體4的零件。收容在墨水匣3內的墨水經由中間構件60被供應至墨水吸藏體13。 The writing instrument main body 4 shown in Fig. 6A has the same configuration as the above-described writing instrument main body 2 except for the intermediate member 60. In the middle of Figure 6A The member 60 is a member for mounting the ink cartridge 3 to the writing instrument body 4. The ink contained in the ink cartridge 3 is supplied to the ink absorbing body 13 via the intermediate member 60.

中間構件60具有用來劃分前軸11A之內部空間的間隔壁。在該間隔壁形成有兩個貫通孔61a。在間隔壁前方的面設有與各貫通孔61a連通的兩個管61。另一方面，在間隔壁後方的面設有密閉連接部63。密閉連接部63是由筒狀的壁部構成。密閉連接部63具有可密閉嵌合在墨水匣3之開口部31之內周面的外周面。 The intermediate member 60 has a partition wall for dividing the inner space of the front axle 11A. Two through holes 61a are formed in the partition wall. Two tubes 61 communicating with the respective through holes 61a are provided on the surface in front of the partition wall. On the other hand, a sealing connection portion 63 is provided on the surface behind the partition wall. The hermetic connection portion 63 is constituted by a tubular wall portion. The hermetic connection portion 63 has an outer peripheral surface that can be hermetically fitted to the inner circumferential surface of the opening portion 31 of the ink cartridge 3.

在此，中間構件60與上述中間構件20不同，是成為在密閉連接部63設有突起部62的構造。突起部62是由接連於密閉連接部63的壁部構成，並且從密閉連接部63朝向後方突出。突起部62具有傾斜的前端部。墨水匣3的栓40、50可藉由突起部62而開放。 Here, unlike the intermediate member 20, the intermediate member 60 has a structure in which the protruding portion 62 is provided in the sealing portion 63. The protruding portion 62 is constituted by a wall portion that is connected to the sealed connecting portion 63 and protrudes rearward from the sealed connecting portion 63. The protruding portion 62 has an inclined front end portion. The plugs 40, 50 of the ink cartridge 3 can be opened by the projections 62.

以下，針對墨水匣3的栓40、50藉由突起部62而開放為止的過程，一邊參照第6A圖至第6C圖一邊加以說明。 Hereinafter, the process of opening the plugs 40 and 50 of the ink cartridge 3 by the projections 62 will be described with reference to FIGS. 6A to 6C.

如第6A圖所示，墨水匣3被***至筆具主體4之前軸11A的後端開口。藉此，中間構件60的突起部62及密閉連接部63被***至墨水匣3的開口部31。如第6B圖所示，突起部62的前端部會抵接於第2栓50的環狀外周部52。接下來，墨水匣3朝筆具主體4之前軸11A的後端開口更為***。此時，突起部62僅將第2栓50的環狀外周部52向後方推壓。然後，如第6C圖所示，墨水 匣3完全被***至筆具主體4之前軸11A的後端開口。此時，第2栓50的環狀外周部52與墨水匣3的開口部31之間的嵌合被解除。藉此，第2栓50會以維持嵌合有第1栓40的狀態從墨水匣3的開口部31脫離。 As shown in Fig. 6A, the ink cartridge 3 is inserted into the rear end opening of the front shaft 11A of the writing instrument main body 4. Thereby, the protruding portion 62 and the sealing connecting portion 63 of the intermediate member 60 are inserted into the opening portion 31 of the ink cartridge 3. As shown in FIG. 6B, the front end portion of the protruding portion 62 abuts against the annular outer peripheral portion 52 of the second plug 50. Next, the ink cartridge 3 is inserted further toward the rear end opening of the front shaft 11A of the writing instrument main body 4. At this time, the protruding portion 62 pushes only the annular outer peripheral portion 52 of the second plug 50 rearward. Then, as shown in Figure 6C, the ink The crucible 3 is completely inserted into the rear end opening of the front shaft 11A of the writing instrument main body 4. At this time, the fitting between the annular outer peripheral portion 52 of the second plug 50 and the opening portion 31 of the ink cartridge 3 is released. Thereby, the second plug 50 is detached from the opening 31 of the ink cartridge 3 while maintaining the state in which the first plug 40 is fitted.

墨水匣3內的墨水通過一方的貫通孔61a及管61而被供應至前軸11A的內部空間。隨著墨水的供應，空氣會從前軸11A的內部空間被推出。該空氣通過另一方的管61及貫通孔61a而流入容器30內。然後，得以保持前軸11A的內部空間與容器30的內壓之均衡。被供應至前軸11A之內部空間的墨水係被保持在墨水吸藏體13而被供應至筆尖12。 The ink in the ink cartridge 3 is supplied to the internal space of the front shaft 11A through one of the through holes 61a and the tube 61. With the supply of ink, air is pushed out from the inner space of the front axle 11A. This air flows into the container 30 through the other tube 61 and the through hole 61a. Then, the balance between the internal space of the front axle 11A and the internal pressure of the container 30 is maintained. The ink supplied to the inner space of the front shaft 11A is held by the ink absorbing body 13 and supplied to the pen tip 12.

〈作用效果〉 <Effect>

本實施形態的墨水匣3可使用在適合墨水防漏機構的筆具主體2(第1A圖)、以及不適合墨水防漏機構的筆具主體4(第6A圖)雙方。亦即，本實施形態的墨水匣3可使用在用來使栓開放的構造各不相同的兩種筆具主體2、4。此外，本實施形態的墨水匣3適合具備墨水防漏機構的新產品的筆具1(第1A圖)、以及不具墨水防漏機構的舊產品的筆具100(第6A圖)雙方。因此，產品提供者在將舊產品替換成新產品時，只要僅在市面上提供具備本實施形態之構造的一種墨水匣3即可。並且，新產品及舊產品雙方的使用者只要選擇市面上提供的一種墨水匣3即可。 The ink cartridge 3 of the present embodiment can be used in both the writing instrument body 2 (Fig. 1A) suitable for the ink leakage preventing mechanism and the writing instrument body 4 (Fig. 6A) which is not suitable for the ink leakage preventing mechanism. That is, in the ink cartridge 3 of the present embodiment, two types of the writing instrument bodies 2, 4 which are different in the structure for opening the plug can be used. Further, the ink cartridge 3 of the present embodiment is suitable for both the writing instrument 1 (Fig. 1A) of the new product including the ink leakage preventing mechanism and the writing instrument 100 (Fig. 6A) of the old product having no ink leakage preventing mechanism. Therefore, when the product supplier replaces the old product with a new one, it is only necessary to provide an ink cartridge 3 having the structure of the present embodiment only on the market. Moreover, users of both new and old products can select one of the ink cartridges available on the market.

〈墨水匣的第2實施形態〉 <Second Embodiment of Ink Cartridge>

接下來，針對本發明之第2實施形態的墨水匣，一邊參照第7A圖至第7D圖一邊加以說明。 Next, the ink cartridge according to the second embodiment of the present invention will be described with reference to FIGS. 7A to 7D.

本實施形態之墨水匣的特徵在於第7A圖所示的第1栓70、以及第7B圖至第7D圖所示的容器30的構造。第1栓70嵌合在第3B圖所示的第2栓50。第1栓70與第2栓50構成將容器30之開口部31加以密閉的單一的栓。 The ink cartridge of the present embodiment is characterized by the structure of the first plug 70 shown in Fig. 7A and the container 30 shown in Figs. 7B to 7D. The first plug 70 is fitted to the second plug 50 shown in Fig. 3B. The first plug 70 and the second plug 50 constitute a single plug that seals the opening 31 of the container 30.

在此，本實施形態之第1栓70的特徵在於具備接連成圓形的單一的鍔部72的構造。鍔部72的後面形成接連成圓形的抵接面72a。接連成圓形的抵接面72a可抵接於形成在容器30內的所有肋部32的段部32a。藉由這種鍔部72，可減少形成在容器30內的肋部32的數量。 Here, the first plug 70 of the present embodiment is characterized in that it has a structure in which a single crotch portion 72 that is connected in a circular shape is provided. An abutting surface 72a that is continuous in a circular shape is formed on the rear surface of the crotch portion 72. The abutting faces 72a that are successively rounded can abut against the segments 32a of all the ribs 32 formed in the container 30. With such a crotch portion 72, the number of ribs 32 formed in the container 30 can be reduced.

例如，如第7B圖至第7D圖所示，可將形成在容器30內的肋部32的數量減少到四根。四根肋部32等間隔地配置在容器30內。四根肋部32的各段部32a以等間隔抵接於接連成圓形的抵接面72a，並且平衡性佳地限制著鍔部72朝向後方的移動。亦即，根據本實施形態的墨水匣，可使墨水防漏機構有效作用。 For example, as shown in FIGS. 7B to 7D, the number of ribs 32 formed in the container 30 can be reduced to four. The four ribs 32 are disposed at equal intervals in the container 30. Each of the segments 32a of the four ribs 32 abuts on the abutting faces 72a that are connected in a circular shape at equal intervals, and the balance is restricted to restrict the movement of the crotch portion 72 toward the rear. That is, according to the ink cartridge of the embodiment, the ink leakage preventing mechanism can be effectively operated.

此外，第1栓70的鍔部72以外的構造與第3A圖所示的第1栓50大致相同。在第7A圖當中，栓主體71嵌合在設於第2栓50的墨水的通過孔51a。在栓主體71內形成有僅於前方開口的孔71a。孔71a不貫通栓主體71。在孔71a的內周面設有環狀凹部71b。孔71a與環狀凹部 71b構成用來與第2A圖所示的筆具主體2之小突起22A嵌合的母型嵌合部。小突起22A被***至栓主體71的孔71a時，一對凸部22a會嵌合在環狀凹部71b的任一部位。 Further, the structure other than the crotch portion 72 of the first plug 70 is substantially the same as the first pin 50 shown in FIG. 3A. In Fig. 7A, the plug main body 71 is fitted to the ink passage hole 51a provided in the second plug 50. A hole 71a that is open only in the front is formed in the plug body 71. The hole 71a does not penetrate the plug body 71. An annular recess 71b is provided on the inner circumferential surface of the hole 71a. Hole 71a and annular recess 71b constitutes a female fitting portion for fitting with the small projection 22A of the writing instrument body 2 shown in Fig. 2A. When the small projection 22A is inserted into the hole 71a of the plug main body 71, the pair of convex portions 22a are fitted to any portion of the annular concave portion 71b.

栓主體71的前端側部分71c係使厚度稍薄。厚度較薄的前端側部分71c容易承受外力而變形。藉此，栓主體71的前端側部5分71c會順利地嵌合至第2栓50的通過孔51a。此外，在栓主體71之前端側部分71c的圓形端面形成有外周的錐面71d、以及內周的錐面71d。外周的錐面71d將栓主體71的前端側部分71c引導至第2栓50的通過孔51a當中。藉此，栓主體71的前端側部分71c會更順利地嵌合至第2栓50的通過孔51a。另一方面，內周的錐面71d將筆具主體2的小突起22A引導至栓主體71的孔71a當中。藉此，小突起22A的凸部22a就不會衝撞到孔71a的入口。其結果，小突起22A的凸部22a會更順利地嵌合至孔71a內的環狀凹部71b。 The front end side portion 71c of the plug main body 71 is made thinner in thickness. The front end side portion 71c having a small thickness is easily deformed by an external force. Thereby, the distal end side portion 5 of the plug main body 71 is smoothly fitted to the through hole 51a of the second plug 50. Further, a circular end surface of the end side portion 71c before the plug main body 71 is formed with a tapered surface 71d of the outer circumference and a tapered surface 71d of the inner circumference. The outer peripheral tapered surface 71d guides the distal end side portion 71c of the plug main body 71 into the through hole 51a of the second plug 50. Thereby, the distal end side portion 71c of the plug main body 71 is more smoothly fitted to the through hole 51a of the second plug 50. On the other hand, the tapered surface 71d of the inner circumference guides the small projection 22A of the writing instrument main body 2 into the hole 71a of the plug main body 71. Thereby, the convex portion 22a of the small projection 22A does not collide with the entrance of the hole 71a. As a result, the convex portion 22a of the small projection 22A is more smoothly fitted into the annular concave portion 71b in the hole 71a.

在鍔部72的內側有四個嵌合凹部72a隔著等間隔設置成放射狀。四個嵌合凹部72a都具有圓弧形狀。嵌合凹部72a係嵌合在第2栓50的圓筒狀主體51。在嵌合凹部72a彼此之間形成有四個墨水通路72c。當第1栓70與第2栓50的嵌合被解除時，容器30內的墨水會通過墨水通路72c而流向開口部31側。然後，墨水會通過第2栓50的通過孔51a而被供應至筆具主體2(或6)。 Inside the crotch portion 72, four fitting recesses 72a are radially provided at equal intervals. The four fitting recesses 72a each have a circular arc shape. The fitting recess 72a is fitted to the cylindrical body 51 of the second plug 50. Four ink passages 72c are formed between the fitting recesses 72a. When the fitting of the first plug 70 and the second plug 50 is released, the ink in the container 30 flows toward the opening 31 side through the ink passage 72c. Then, the ink is supplied to the writing instrument main body 2 (or 6) through the through hole 51a of the second plug 50.

〈筆具主體的第2實施形態〉 <Second Embodiment of Pen Body>

接下來，針對本發明之第2實施形態的筆具主體，一邊參照第8圖至第12圖一邊加以說明。本實施形態的筆具主體5顯示於第11圖及第12圖。筆具主體5的特徵在於第8A圖所示的中間構件20的構造。筆具主體5係藉由中間構件20的特徵性構造，而適合於具備第11圖所示之墨水防漏機構的墨水匣3、以及不具第12圖所示之墨水防漏機構的墨水匣3雙方。 Next, the writing instrument body according to the second embodiment of the present invention will be described with reference to Figs. 8 to 12 . The writing instrument body 5 of the present embodiment is shown in Figs. 11 and 12. The writing instrument body 5 is characterized by the configuration of the intermediate member 20 shown in Fig. 8A. The writing instrument body 5 is suitable for the ink cartridge 3 having the ink leakage preventing mechanism shown in FIG. 11 and the ink cartridge 3 having the ink leakage preventing mechanism shown in FIG. 12 by the characteristic structure of the intermediate member 20. both sides.

此外，筆具主體5之中間構件20以外的構造與第1A圖及第1B圖所示的筆具主體2的構造相同。因此，本實施形態當中，省略關於中間構件20以外的筆具主體5的構造之說明。 Further, the structure other than the intermediate member 20 of the writing instrument body 5 is the same as that of the writing instrument body 2 shown in FIGS. 1A and 1B. Therefore, in the present embodiment, the description of the structure of the writing instrument body 5 other than the intermediate member 20 will be omitted.

〈中間構件〉 Intermediate component

如第8A圖所示，本實施形態的中間構件20具有形成有兩個貫通孔21a的間隔壁。在該間隔壁後方的面的中央配置有突起部22。在突起部22的前端設有小突起22A。小突起22A構成用來與第3A圖或第7A圖所示的第1栓40、70嵌合的公型嵌合部。如上所述，在第1栓40、70的栓主體41、71設有孔41a、71a及環狀凹部41b、71b。孔41a、71a及環狀凹部41b、71b構成供小突起22A嵌合的母型嵌合部。本實施形態的突起部22及小突起22A的構造與第3C圖所示的第1實施形態的中間構件20的構造相同。 As shown in Fig. 8A, the intermediate member 20 of the present embodiment has a partition wall in which two through holes 21a are formed. A projection 22 is disposed at the center of the surface behind the partition wall. A small projection 22A is provided at the front end of the projection 22. The small projections 22A constitute a male fitting portion for fitting with the first plugs 40 and 70 shown in Fig. 3A or Fig. 7A. As described above, the plug bodies 41 and 71 of the first plugs 40 and 70 are provided with holes 41a and 71a and annular recessed portions 41b and 71b. The holes 41a and 71a and the annular recessed portions 41b and 71b constitute a female fitting portion into which the small projections 22A are fitted. The structure of the projection 22 and the small projection 22A of the present embodiment is the same as that of the intermediate member 20 of the first embodiment shown in Fig. 3C.

在第8A圖所示的中間構件20之小突起22A的前端還設有第1微小突起22B、第2微小突起22C及間 隙22D。第1微小突起22B、第2微小突起2C及間隙22D可使不具第12圖所示之墨水防漏機構的墨水匣3的栓80確實開放。 Further, at the front end of the small projection 22A of the intermediate member 20 shown in Fig. 8A, a first microprotrusion 22B, a second microprotrusion 22C, and an intermediate portion are provided. Gap 22D. The first microprotrusion 22B, the second microprotrusion 2C, and the gap 22D can reliably open the plug 80 of the ink cartridge 3 which does not have the ink leakage preventing mechanism shown in FIG.

〈第1微小突起〉 <1st microprotrusion>

如第8B圖、第9A圖及第9B圖所示，第1微小突起22B從小突起22A的中心偏離而位於一側。第1微小突起22B從小突起22A朝向後方突出。如第11A圖及第11B圖所示，第1微小突起22B具有在小突起22A嵌合在孔41a、71a及環狀凹部41b、71b時不會與栓主體41、71接觸的長度(參照第9B圖所示的高度H1)。 As shown in FIG. 8B, FIG. 9A, and FIG. 9B, the first minute projections 22B are located on one side from the center of the small projections 22A. The first microprotrusion 22B protrudes rearward from the small projection 22A. As shown in FIG. 11A and FIG. 11B, the first microprotrusion 22B has a length that does not contact the plug bodies 41 and 71 when the small projections 22A are fitted into the holes 41a and 71a and the annular recessed portions 41b and 71b (see the The height H1 shown in Fig. 9B.

第1微小突起22B的前端面22c具有比垂直狀態的第1微小突起22B之水平方向的剖面積小的面積(參照第9B圖所示的水平方向的C1-C1剖面線)。第1微小突起22B之前端面22c的面積例如為0.9mm2。又，第1微小突起22B之相對向的兩個側面22d、22d是從第1微小突起22B的前端側朝向小突起22A傾斜。 The distal end surface 22c of the first microprotrusion 22B has an area smaller than the cross-sectional area of the first microprotrusion 22B in the vertical direction in the horizontal direction (see the C1-C1 hatching in the horizontal direction shown in FIG. 9B). The area of the front end surface 22c of the first microprotrusion 22B is, for example, 0.9 mm 2 . Further, the two side faces 22d and 22d facing each other in the first microprotrusion 22B are inclined from the distal end side of the first microprotrusion 22B toward the small projection 22A.

由上述構造所構成的第1微小突起22B具有使不具第12圖所示之墨水防漏機構的墨水匣3的栓80確實開放的功能。亦即，第1微小突起22B會推壓圓板狀的栓80之從中心偏離的部分。藉此，圓板狀的栓80會從容器30的開口部內周面脫離，並且以其直徑方向的軸為中心而旋轉。 The first microprotrusion 22B having the above-described structure has a function of reliably opening the plug 80 of the ink cartridge 3 which does not have the ink leakage preventing mechanism shown in FIG. In other words, the first minute projections 22B press the portion of the disk-shaped plug 80 that is offset from the center. Thereby, the disk-shaped plug 80 is detached from the inner circumferential surface of the opening of the container 30, and is rotated about the axis in the radial direction.

又，由於將第1微小突起22B之前端面22c 的面積縮得極小，故前端面22c與栓80的接觸狀態變得不穩定。亦即，栓80在前端面22c上不會形成穩定的狀態。其結果，被前端面22c推壓的栓80會以其直徑方向的軸為中心而確實旋轉。 Further, since the first minute projection 22B is provided with the front end surface 22c Since the area is extremely small, the contact state of the front end surface 22c and the plug 80 becomes unstable. That is, the plug 80 does not form a stable state on the front end face 22c. As a result, the plug 80 pressed by the distal end surface 22c is surely rotated about the axis in the radial direction.

此外，第1微小突起22B之傾斜的側面22d、22d發揮控制栓80之旋轉方向的導件的功能。亦即，被前端面22c推壓的栓80會沿著兩個側面22d、22d任一方的傾斜而旋轉。 Further, the inclined side faces 22d and 22d of the first minute projection 22B function as a guide for controlling the rotation direction of the plug 80. That is, the plug 80 pushed by the front end surface 22c is rotated along the inclination of either one of the two side faces 22d and 22d.

〈第2微小突起〉 <2nd microprotrusion>

如第8B圖、第9A圖及第9B圖所示，第2微小突起22C從小突起22A的中心偏離而位於另一側。第2微小突起22C從小突起22A朝向後方突出。第2微小突起22C具有比第1微小突起22B短的長度(參照第9B圖所示的高度H2)。與第1微小突起22B同樣，第2微小突起22C也是在小突起22A嵌合在孔41a、71a及環狀凹部41b、71b時不會與栓主體41、71接觸。 As shown in FIGS. 8B, 9A, and 9B, the second minute projection 22C is displaced from the center of the small projection 22A and is located on the other side. The second microprotrusion 22C protrudes rearward from the small projection 22A. The second microprotrusion 22C has a shorter length than the first microprotrusion 22B (see the height H2 shown in FIG. 9B). Similarly to the first microprotrusions 22B, the second microprotrusions 22C are not in contact with the plug bodies 41 and 71 when the small projections 22A are fitted into the holes 41a and 71a and the annular recessed portions 41b and 71b.

第2微小突起22C的前端面22e具有比垂直狀態的第2微小突起22C之水平方向的剖面積小的面積(參照第9B圖所示的水平方向的C2-C2剖面線)。在此，如第9A圖所示，第2微小突起22C之前端面22e的寬度W2比第1微小突起22B之前端面22c的寬度W1小。第2微小突起22C之前端面22e的面積例如為0.7mm2。又，第2微小突起22C之相對向的兩個側面22f、22f是從第2微小突 起22C的前端側朝向小突起22A傾斜。 The distal end surface 22e of the second microprotrusion 22C has an area smaller than the cross-sectional area of the second microprotrusion 22C in the vertical direction in the horizontal direction (see the C2-C2 hatching in the horizontal direction shown in FIG. 9B). Here, as shown in FIG. 9A, the width W2 of the front end surface 22e of the second microprotrusion 22C is smaller than the width W1 of the front end surface 22c of the first microprotrusion 22B. The area of the front end surface 22e of the second microprotrusion 22C is, for example, 0.7 mm 2 . Further, the two side faces 22f and 22f facing each other in the second microprotrusion 22C are inclined from the distal end side of the second microprotrusion 22C toward the small projection 22A.

由上述構造所構成的第2微小突起22C可支援上述第1微小突起22B的力學功能，使圓板狀的栓80更確實地開放。亦即，較短的第2微小突起22C的前端面22e會成為從容器30之開口部內周面脫離的栓80的支點。栓80會被較長的第1微小突起22B的前端面22e推壓，並且被支撐在較短的第2微小突起22C的前端面22e。其結果，栓80會姿勢不正而成為不穩定的狀態。不穩定狀態的栓80便容易沿著第1微小突起22B之傾斜的側面22d旋轉。此外，該栓80的旋轉會受到第2微小突起22C之傾斜的側面22f支援而成為更確實的動作。 The second microprotrusion 22C having the above-described structure can support the mechanical function of the first microprotrusion 22B, and the disk-shaped plug 80 can be more reliably opened. In other words, the distal end surface 22e of the shorter second microprotrusion 22C serves as a fulcrum of the plug 80 that is detached from the inner circumferential surface of the opening of the container 30. The plug 80 is pressed by the front end surface 22e of the long first minute projection 22B, and is supported by the front end surface 22e of the shorter second microprotrusion 22C. As a result, the plug 80 may be in an unstable state due to a posture that is not correct. The plug 80 in an unstable state is easily rotated along the inclined side surface 22d of the first minute projection 22B. Further, the rotation of the plug 80 is supported by the inclined side surface 22f of the second microprotrusion 22C, and becomes a more reliable operation.

〈間隙〉 <gap>

上述第2微小突起22C在與第1微小突起22B之間形成間隙22D。如第9B圖所示，間隙22D從小突起22A的中心偏離而位於靠近另一側。如第10圖所示，間隙22D與設在栓80之中央的圓柱突起81相對應。將圓柱突起81與間隙22D的尺寸的具體例顯示於第10圖。圓柱突起81例如設為直徑2.6mm、長度2.3mm。相對於此，間隙22D例如設為寬度2.8mm、深度2.9mm。 The second microprotrusion 22C forms a gap 22D between the second microprotrusion 22C and the first microprotrusion 22B. As shown in Fig. 9B, the gap 22D is deviated from the center of the small projection 22A and is located closer to the other side. As shown in Fig. 10, the gap 22D corresponds to the cylindrical projection 81 provided at the center of the plug 80. A specific example of the dimensions of the cylindrical projection 81 and the gap 22D is shown in Fig. 10. The cylindrical projection 81 has a diameter of 2.6 mm and a length of 2.3 mm, for example. On the other hand, the gap 22D has a width of 2.8 mm and a depth of 2.9 mm, for example.

由上述構造所構成的間隙22D在栓80藉由第1及第2微小突起22B、22C而開放的過程當中，會承接圓柱突起81，並將該圓柱突起81之可旋轉的方向限制為兩個方向。藉此，栓80會沿著第1微小突起22B之兩個 側面22d、22d任一方的傾斜而確實旋轉。亦即，直到從容器30之開口部的內周面開放為止之期間的栓80的動作，係藉由第1微小突起22B、第2微小突起22C及間隙22D精密地被控制。 The gap 22D formed by the above-described structure receives the cylindrical projection 81 during the opening of the plug 80 by the first and second minute projections 22B and 22C, and limits the rotatable direction of the cylindrical projection 81 to two. direction. Thereby, the plug 80 will follow the two of the first minute protrusions 22B. Any one of the side faces 22d and 22d is inclined to rotate. In other words, the operation of the plug 80 until the inner peripheral surface of the opening of the container 30 is opened is precisely controlled by the first microprotrusion 22B, the second microprotrusion 22C, and the gap 22D.

〈適合具備墨水防漏機構的墨水匣〉 <Ink 适合 suitable for ink leakproof mechanism>

本實施形態的筆具主體5適合具備第2A圖及第7圖所示之墨水防漏機構的墨水匣3，且可使墨水防漏機構正常動作。以下，例示出具備第7A圖之第1栓70的墨水匣3，來說明本實施形態的筆具主體5適合具備墨水防漏機構的墨水匣3的情況。此外，本實施形態的筆具主體5也適合具備第3A圖之第1栓40的墨水匣3，但是省略其詳細的說明。 The writing instrument main body 5 of the present embodiment is suitable for the ink cartridge 3 including the ink leakage preventing mechanisms shown in Figs. 2A and 7 and allows the ink leakage preventing mechanism to operate normally. In the following description, the ink cartridge 3 including the first plug 70 of FIG. 7A is exemplified, and the ink cartridge 3 of the present embodiment is preferably provided with the ink cartridge 3 of the ink leakage preventing mechanism. Further, the writing instrument main body 5 of the present embodiment is also preferably provided with the ink cartridge 3 of the first plug 40 of FIG. 3A, but a detailed description thereof will be omitted.

如第11A圖及第11B圖所示，墨水匣3被***至筆具主體5之前軸11A的後端開口。藉此，中間構件20的突起部22及密閉連接部23被***至墨水匣3的開口部。小突起22A、第1及第2微小突起22B、22C被***至第1栓70的孔71a。此時，形成在突起部22與小突起22A之間的段部(參照第11B圖)抵接於第1栓70的前端。與此同時，小突起22A之一對凸部22a嵌合在第1栓70之環狀凹部71b的任一部位。另一方面，密閉連接部23被***至墨水匣3的開口部31。 As shown in FIGS. 11A and 11B, the ink cartridge 3 is inserted into the rear end opening of the front shaft 11A of the writing instrument main body 5. Thereby, the protrusion part 22 and the sealing connection part 23 of the intermediate member 20 are inserted in the opening part of the ink cartridge 3. The small projections 22A and the first and second minute projections 22B and 22C are inserted into the holes 71a of the first plug 70. At this time, the segment portion (see FIG. 11B) formed between the protruding portion 22 and the small projection 22A abuts against the tip end of the first plug 70. At the same time, one of the small projections 22A is fitted to the convex portion 22a at any portion of the annular concave portion 71b of the first plug 70. On the other hand, the hermetic connection portion 23 is inserted into the opening portion 31 of the ink cartridge 3.

在此，***至第1栓70之孔71a的第1及第2微小突起22B、22C並不會與栓主體71接觸。亦即， 具備墨水防漏機構的墨水匣3被使用在筆具主體5的情況，第1及第2微小突起22B、22C只是存在於第1栓70的孔71a內，對於墨水匣3不會造成任何的影響。其結果，筆具主體5與墨水匣3的裝卸動作便與第4A圖至第4F圖及第5A圖至第5F圖完全相同。 Here, the first and second minute projections 22B and 22C inserted into the hole 71a of the first plug 70 do not come into contact with the plug main body 71. that is, When the ink cartridge 3 having the ink leakage preventing mechanism is used in the writing instrument body 5, the first and second microprotrusions 22B and 22C are only present in the hole 71a of the first plug 70, and do not cause any ink cartridge 3. influences. As a result, the attachment and detachment operation of the writing instrument main body 5 and the ink cartridge 3 is completely the same as those of FIGS. 4A to 4F and FIGS. 5A to 5F.

〈適合不具墨水防漏機構的墨水匣〉 <Applicable to ink 不 without ink leakage prevention mechanism>

本實施形態的筆具主體5適合不具第12圖所示之墨水防漏機構的墨水匣3，且可使在中央設有圓柱突起81的圓板狀的栓80確實開放。 The writing instrument main body 5 of the present embodiment is suitable for the ink cartridge 3 which does not have the ink leakage preventing mechanism shown in Fig. 12, and the disk-shaped plug 80 having the cylindrical projection 81 at the center can be surely opened.

如第12A圖所示，墨水匣3被***至筆具主體5之前軸11A的後端開口。藉此，較長的第1微小突起22B的前端面22c推壓圓板狀的栓80之從中心偏離的部分。又，栓80的圓柱突起81被承接在第1及第2微小突起22B、22C之間的間隙22D。此時，較短的第2微小突起22C的前端面22e並不會與栓80接觸。另一方面，密閉連接部23淺淺地被***至墨水匣3的開口部31。 As shown in Fig. 12A, the ink cartridge 3 is inserted into the rear end opening of the front shaft 11A of the writing instrument main body 5. Thereby, the front end surface 22c of the long first microprotrusion 22B presses the portion of the disk-shaped plug 80 that is deviated from the center. Further, the cylindrical projection 81 of the plug 80 is received in the gap 22D between the first and second minute projections 22B and 22C. At this time, the distal end surface 22e of the shorter second microprotrusion 22C does not come into contact with the plug 80. On the other hand, the hermetic connection portion 23 is shallowly inserted into the opening portion 31 of the ink cartridge 3.

如第12B圖所示，墨水匣3朝筆具主體5之前軸11A的後端開口更為***。如此一來，被較長的第1微小突起22B的前端面22c推壓的圓板狀的栓80會從容器30的開口部內周面脫離。此時，栓80被較長的第1微小突起22B的前端面22c推壓，並且被支撐在較短的第2微小突起22C的前端面22e。藉此，栓80會姿勢不正而成為不穩定的狀態。另一方面，密閉連接部23朝墨水匣3 的開口部31更為***。 As shown in Fig. 12B, the ink cartridge 3 is inserted more toward the rear end opening of the front shaft 11A of the writing instrument main body 5. In this manner, the disk-shaped plug 80 pressed by the distal end surface 22c of the long first microprotrusion 22B is detached from the inner circumferential surface of the opening of the container 30. At this time, the plug 80 is pressed by the distal end surface 22c of the long first microprotrusion 22B, and is supported by the distal end surface 22e of the short second microprotrusion 22C. As a result, the plug 80 may be in an unstable state due to a posture that is not correct. On the other hand, the hermetic connection portion 23 faces the ink cartridge 3 The opening portion 31 is further inserted.

如第12C圖所示，然後，墨水匣3完全被***至筆具主體5之前軸11A的後端開口。在直到墨水匣3完全被***為止的過程當中，姿勢不正而呈不穩定的狀態的栓80會以其直徑方向的軸為中心而旋轉。栓80的旋轉方向被限制為間隙22D內的圓柱突起81之可旋轉的兩個方向。其結果，栓80會沿著第1微小突起22B之兩個側面22d、22d任一方的傾斜而確實旋轉。栓80的旋轉會受到第2微小突起22C之傾斜的側面22f支援而成為更確實的動作。如第12D圖所示，本實施形態的第1微小突起22B、第2微小突起22C及間隙22D能夠使栓80依大約45°的傾斜度旋轉。 As shown in Fig. 12C, then, the ink cartridge 3 is completely inserted into the rear end opening of the front shaft 11A of the writing instrument main body 5. In the process until the ink cartridge 3 is completely inserted, the plug 80 that is in an unstable state in a posture is rotated about the axis in the diameter direction. The direction of rotation of the bolt 80 is limited to two rotatable directions of the cylindrical protrusion 81 in the gap 22D. As a result, the plug 80 is surely rotated along the inclination of either one of the two side faces 22d and 22d of the first microprotrusion 22B. The rotation of the plug 80 is supported by the inclined side surface 22f of the second microprotrusion 22C, and becomes a more reliable operation. As shown in Fig. 12D, the first microprotrusion 22B, the second microprotrusion 22C, and the gap 22D of the present embodiment can rotate the plug 80 at an inclination of about 45°.

另一方面，密閉連接部23被完全***至墨水匣3的開口部31，並且密閉嵌合在開口部31的內周面。 On the other hand, the hermetic connection portion 23 is completely inserted into the opening portion 31 of the ink cartridge 3, and is hermetically fitted to the inner circumferential surface of the opening portion 31.

〈作用效果〉 <Effect>

如上所述，本實施形態的筆具主體5可使用在適合墨水防漏機構的墨水匣3(第11圖)、以及不適合墨水防漏機構的墨水匣3(第12圖)雙方。亦即，本實施形態的筆具主體5可使具備墨水防漏機構的墨水匣3的第1栓40、70、以及不具墨水防漏機構的墨水匣3的栓80雙方順利開放。因此，即使在剛剛將舊產品替換成新產品之後於市面上流通著新舊兩種墨水匣3，仍可在新產品的筆具主體5使用新舊雙方的墨水匣3。 As described above, the writing instrument body 5 of the present embodiment can be used both in the ink cartridge 3 (Fig. 11) suitable for the ink leakage preventing mechanism and the ink cartridge 3 (Fig. 12) which is not suitable for the ink leakage preventing mechanism. In other words, in the writing instrument main body 5 of the present embodiment, both the first plugs 40 and 70 of the ink cartridge 3 including the ink leakage preventing mechanism and the plug 80 of the ink cartridge 3 having no ink leakage preventing mechanism can be smoothly opened. Therefore, even if the old and new ink cartridges 3 are circulated in the market immediately after replacing the old product with the new product, the ink cartridges 3 of both the old and the new can be used in the writing instrument body 5 of the new product.

尤其是，本實施形態的筆具主體5可藉由第1微小突起22B、第2微小突起22C及間隙22D來精密地控制圓板狀的栓80的動作。藉此，本實施形態的筆具主體5可使圓板狀的栓80確實開放。並且，與第6C圖所示的突起部62比較，本實施形態的第1微小突起22B、第2微小突起22C及間隙22D可設在極小的空間。 In particular, in the writing instrument main body 5 of the present embodiment, the operation of the disk-shaped plug 80 can be precisely controlled by the first minute projections 22B, the second minute projections 22C, and the gaps 22D. Thereby, the writing instrument main body 5 of the present embodiment can surely open the disk-shaped plug 80. Further, the first minute projection 22B, the second microprotrusion 22C, and the gap 22D of the present embodiment can be provided in an extremely small space as compared with the projection 62 shown in FIG. 6C.

〈筆具主體的第3實施形態〉 <Third Embodiment of Pen Body>

接下來，針對本發明之第3實施形態的筆具主體，一邊參照第13A圖及第13B圖加以說明。 Next, the writing instrument body according to the third embodiment of the present invention will be described with reference to FIGS. 13A and 13B.

如第13A圖及第13B圖所示，本實施形態的筆具主體6的特徵為：在中間構件20之小突起22A的前端僅設有第1微小突起22B。第1微小突起22B從小突起22A的中心偏離而位於一側。第1微小突起22B的長度例如設為2.7mm。可僅藉由第1微小突起22B而使在中央設有圓柱突起81的圓板狀的栓80開放。本實施形態的第1微小突起22B可使栓80依大約50°的傾斜度旋轉。 As shown in FIGS. 13A and 13B, the writing instrument main body 6 of the present embodiment is characterized in that only the first minute projection 22B is provided at the front end of the small projection 22A of the intermediate member 20. The first minute projection 22B is offset from the center of the small projection 22A and is located on one side. The length of the first microprotrusion 22B is, for example, 2.7 mm. The disk-shaped plug 80 having the cylindrical protrusion 81 at the center can be opened only by the first minute projection 22B. The first microprotrusion 22B of the present embodiment can rotate the plug 80 at an inclination of about 50 degrees.

此外，本實施形態的中間構件20也具有與第3C圖及第8A圖之中間構件20同樣的小突起22A及凸部。因此，與第1及第2實施形態的筆具主體2、5同樣地，本實施形態的筆具主體6也適合具備第2A圖及第7圖所示之墨水防漏機構的墨水匣3，與第4A圖至第4F圖以及第5A圖至第5F圖完全同樣可使第1栓40、70動作。 Further, the intermediate member 20 of the present embodiment also has the small projections 22A and the convex portions similar to those of the intermediate member 20 of FIGS. 3C and 8A. Therefore, similarly to the writing instrument bodies 2 and 5 of the first and second embodiments, the writing instrument body 6 of the present embodiment is also preferably provided with the ink cartridges 3 of the ink leakage preventing mechanisms shown in Figs. 2A and 7 . The first plugs 40, 70 can be operated in the same manner as in Figs. 4A to 4F and Figs. 5A to 5F.

1‧‧‧筆具 1‧‧‧ pens

2‧‧‧筆具主體 2‧‧‧ Pen body

3‧‧‧墨水匣 3‧‧‧Ink 匣

11‧‧‧軸筒 11‧‧‧ shaft tube

11A‧‧‧前軸 11A‧‧‧ front axle

11B‧‧‧後軸 11B‧‧‧ rear axle

12‧‧‧筆尖 12‧‧‧ nib

13‧‧‧墨水吸藏體 13‧‧‧Ink absorbing bodies

14‧‧‧蓋子 14‧‧‧ Cover

20‧‧‧中間構件 20‧‧‧Intermediate components

21‧‧‧管 21‧‧‧ tube

21a‧‧‧貫通孔 21a‧‧‧through holes

22‧‧‧突起部 22‧‧‧Protruding

22A‧‧‧小突起(公型嵌合部) 22A‧‧‧Small protrusions (male fittings)

23‧‧‧密閉連接部 23‧‧‧ Closed connection

30‧‧‧容器 30‧‧‧ Container

31‧‧‧開口部 31‧‧‧ openings

32‧‧‧肋部 32‧‧‧ ribs

40‧‧‧第1栓 40‧‧‧1st bolt

50‧‧‧第2栓 50‧‧‧2nd bolt

51a‧‧‧通過孔 51a‧‧‧through hole

Claims (25)

一種墨水匣，係包含收容墨水的筒狀容器、以及將前述容器之開口部加以密閉的栓，並且前述栓藉由設在筆具主體的突起部而被開放，其中：前述栓包含第1栓及第2栓，前述第1栓具有嵌合在前述突起部的栓主體，前述第2栓具有嵌合在前述開口部之內周面的外周部、以及供前述第1栓之栓主體嵌合的前述墨水的通過孔，前述第1栓的栓主體與前述第2栓的通過孔之間的嵌合可藉由前述突起部而解除，此外，前述第2栓的外周部係構成為可藉由朝向前述容器後方的力而從前述開口部的內周面脫離。 An ink cartridge comprising a cylindrical container for accommodating ink, and a plug for sealing an opening of the container, wherein the plug is opened by a protruding portion provided on the writing instrument body, wherein the plug includes a first plug And the second plug, the first plug has a plug main body that is fitted to the protruding portion, and the second plug has an outer peripheral portion that is fitted to an inner circumferential surface of the opening, and a plug main body that is provided with the first plug. The through hole of the ink, the fitting between the plug main body of the first plug and the through hole of the second plug can be released by the protruding portion, and the outer peripheral portion of the second plug can be configured to be borrowed The inner peripheral surface of the opening is detached by a force toward the rear of the container. 如申請專利範圍第1項所述的墨水匣，其中，前述第2栓的外周部與前述開口部的內周面之間的嵌合力比前述第1栓的栓主體與前述第2栓的通過孔之間的嵌合力大。 The ink cartridge according to the first aspect of the invention, wherein the fitting force between the outer peripheral portion of the second plug and the inner peripheral surface of the opening is higher than the passage of the plug main body and the second plug of the first plug The fitting force between the holes is large. 如申請專利範圍第1或2項所述的墨水匣，其中，構成前述第2栓之通過孔的內周面形成朝向前述容器之後方擴展的錐面狀。 The ink cartridge according to the first or second aspect of the invention, wherein the inner peripheral surface of the through hole constituting the second plug is formed in a tapered shape extending toward the rear of the container. 如申請專利範圍第1至3項中任一項所述的墨水匣，其中，前述第1栓具有從前述栓主體朝向前述開口部的內周面突出並且構成為可讓前述墨水通過的鍔部。 The ink cartridge according to any one of claims 1 to 3, wherein the first plug has an ankle portion that protrudes from an inner circumferential surface of the opening portion toward the opening portion and is configured to allow the ink to pass therethrough. . 如申請專利範圍第1至4項中任一項所述的墨水匣，其 中，在前述容器的內側設有段部，前述段部構成為藉由抵接在從前述第2栓脫離的前述第1栓來限制前述第1栓朝向後方之移動。 An ink cartridge according to any one of claims 1 to 4, wherein In the inside of the container, a segment portion is provided, and the segment portion is configured to restrict movement of the first plug toward the rear side by abutting against the first pin that is detached from the second pin. 如申請專利範圍第1至5項中任一項所述的墨水匣，其中，在前述栓主體設有母型嵌合部或公型嵌合部，前述母型嵌合部或前述公型嵌合部構成為可嵌合在前述筆具主體的突起部。 The ink cartridge according to any one of claims 1 to 5, wherein the plug body is provided with a female fitting portion or a male fitting portion, the female fitting portion or the male insert The joint portion is configured to be fitted to the protruding portion of the writing instrument body. 如申請專利範圍第6項所述的墨水匣，其中，在前述栓主體的內側設有前述母型嵌合部，前述母型嵌合部包含僅於前述栓主體之前方形成開口的孔、以及設在前述孔之內周面的環狀凹部。 The ink cartridge according to claim 6, wherein the female fitting portion is provided inside the plug body, and the female fitting portion includes a hole that is formed only in front of the plug body, and An annular recess provided on the inner circumferential surface of the hole. 如申請專利範圍第1至7項中任一項所述的墨水匣，其中，前述容器的開口部具有13mm以上23mm以下的外徑。 The ink cartridge according to any one of claims 1 to 7, wherein the opening of the container has an outer diameter of 13 mm or more and 23 mm or less. 如申請專利範圍第8項所述的墨水匣，其中，前述容器的開口部具有10至22mm之範圍內的內徑。 The ink cartridge according to claim 8, wherein the opening of the container has an inner diameter in a range of 10 to 22 mm. 一種筆具，係包含申請專利範圍第1至9項中任一項所述的墨水匣、以及以可更換的方式安裝有前述墨水匣的筆具主體，且在前述筆具主體設有突起部，前述突起部係從前述筆具主體朝向後方突出，並且構成為可使前述墨水匣的第1栓或第2栓之任一者開放。 A writing instrument comprising the ink cartridge according to any one of claims 1 to 9 and a writing instrument body in which the ink cartridge is replaceably mounted, and wherein the writing instrument body is provided with a protrusion The protruding portion protrudes rearward from the writing instrument body, and is configured to open either of the first plug or the second plug of the ink cartridge. 如申請專利範圍第10項所述的筆具，其中， 前述突起部配置在前述筆具主體的中央，具有可通過前述第2栓之通過孔的短邊方向的寬度，並且構成為可嵌合在前述第1栓的栓主體；前述突起部與前述栓主體之間的嵌合力比前述第2栓的外周部與前述開口部的內周面之間的嵌合力小。 A pen according to claim 10, wherein The protruding portion is disposed at a center of the writing instrument body, has a width in a short-side direction through which a through hole of the second plug is passed, and is configured to be fitted to a plug main body of the first plug; the protruding portion and the plug The fitting force between the main bodies is smaller than the fitting force between the outer peripheral portion of the second plug and the inner peripheral surface of the opening. 如申請專利範圍第11項所述的筆具，其中，在前述突起部設有公型嵌合部或母型嵌合部，前述公型嵌合部或前述母型嵌合部構成為可嵌合在前述栓主體。 The writing instrument according to claim 11, wherein the protruding portion is provided with a male fitting portion or a female fitting portion, and the male fitting portion or the female fitting portion is configured to be insertable Combined with the aforementioned plug body. 如申請專利範圍第12項所述的筆具，其中，在前述栓主體的內側設有母型嵌合部，前述母型嵌合部包含僅於前述栓主體之前方形成開口的孔、以及設在前述孔之內周面的環狀凹部，在前述突起部的前端設有前述公型嵌合部，前述公型嵌合部具有可嵌合在前述環狀凹部之任一部分的複數個凸面。 The writing instrument according to claim 12, wherein a female fitting portion is provided inside the plug body, and the female fitting portion includes a hole that is formed only in front of the plug body, and The annular recessed portion on the inner peripheral surface of the hole is provided with the male fitting portion at the tip end of the protruding portion, and the male fitting portion has a plurality of convex surfaces that can be fitted to any one of the annular recessed portions. 如申請專利範圍第11至13項中任一項所述的筆具，其中，前述突起部具有與前述第2栓之通過孔的直徑大致相等的短邊方向的寬度，在插通於前述通過孔時將該通過孔劃分成兩個。 The writing instrument according to any one of claims 11 to 13, wherein the projection has a width in a short side direction substantially equal to a diameter of a passage hole of the second plug, and is inserted through the passage. The hole is divided into two by the hole. 如申請專利範圍第14項所述的筆具，其中，前述突起部設在劃分前述筆具主體之內部的間隔壁的中央，在前述間隔壁，以將前述突起部夾在中間之方式設有至少兩個貫通孔， 在前述突起部的側面設有與前述貫通孔相對應的至少兩個流路，前述流路由朝前後方向延伸的凹槽部構成。 The writing instrument according to claim 14, wherein the protruding portion is provided at a center of a partition wall that partitions the inside of the writing instrument body, and the partition wall is provided to sandwich the protruding portion At least two through holes, At least two flow paths corresponding to the through holes are provided on a side surface of the protruding portion, and the flow path is formed by a groove portion extending in the front-rear direction. 如申請專利範圍第11至15項中任一項所述的筆具，其中，在前述筆具主體設有密閉連接部，前述密閉連接部由包圍前述突起部的筒狀壁部構成，並且具有可密閉嵌合在前述開口部之內周面的外周面。 The writing instrument according to any one of claims 11 to 15, wherein the writing instrument main body is provided with a sealing connecting portion, and the sealed connecting portion is constituted by a cylindrical wall portion surrounding the protruding portion, and has The outer peripheral surface of the inner peripheral surface of the opening can be hermetically fitted. 如申請專利範圍第10項所述的筆具，其中，在前述筆具主體設有密閉連接部，前述密閉連接部具有可密閉嵌合在前述開口部之內周面的外周面，在前述密閉連接部設有前述突起部，前述突起部係從前述密閉連接部朝向後方突出，且構成為可藉由將前述第2栓的周邊部朝向前述容器的後方推壓而使前述第2栓開放。 The writing instrument according to claim 10, wherein the writing instrument body is provided with a sealing connecting portion, and the sealing connecting portion has an outer peripheral surface that is sealably fitted to an inner circumferential surface of the opening, and is sealed The connecting portion is provided with the protruding portion, and the protruding portion protrudes rearward from the sealed connecting portion, and is configured to open the second plug by pressing the peripheral portion of the second plug toward the rear of the container. 如申請專利範圍第12至16項中任一項所述的筆具，其中，在前述栓主體的內側設有母型嵌合部，前述母型嵌合部包含僅於前述栓主體之前方形成開口的孔、以及設在前述孔之內周面的環狀凹部，在前述突起部的前端設有前述公型嵌合部，前述公型嵌合部具有可嵌合在前述環狀凹部之任一部分的複 數個凸面，在前述公型嵌合部的前端設有第1微小突起，前述第1微小突起從前述公型嵌合部的中心偏離而位於一側且從前述公型嵌合部朝向後方突出，並且具有在前述公型嵌合部嵌合在前述母型嵌合部時不會與前述栓主體接觸的長度。 The writing instrument according to any one of claims 12 to 16, wherein a female fitting portion is provided inside the plug body, and the female fitting portion is formed only in front of the plug body a hole for opening and an annular recessed portion provided on an inner circumferential surface of the hole, wherein the male fitting portion is provided at a tip end of the protruding portion, and the male fitting portion is engageable in the annular recess Part of the complex a plurality of convex surfaces are provided with a first microprotrusion at the distal end of the male fitting portion, and the first microprotrusion is located on one side from the center of the male fitting portion and protrudes rearward from the male fitting portion. And having a length that does not come into contact with the plug body when the male fitting portion is fitted to the female fitting portion. 如申請專利範圍第18項所述的筆具，其中，在前述公型嵌合部的前端設有第2微小突起，前述第2微小突起從前述公型嵌合部的中心偏離而位於另一側且從前述公型嵌合部朝向後方突出，並且具有比前述第1微小突起短的長度且在其與前述第1微小突起之間形成間隙。 The writing instrument according to claim 18, wherein a second microprotrusion is provided at a distal end of the male fitting portion, and the second microprotrusion is offset from a center of the male fitting portion to be located at another The side protrudes rearward from the male fitting portion, and has a shorter length than the first microprotrusion and forms a gap between the first microprotrusion and the first microprotrusion. 如申請專利範圍第19項所述的筆具，其中，前述第1微小突起與前述第2微小突起之間的前述間隙的位置係從前述公型嵌合部的中心偏離而靠近另一側。 In the writing instrument according to claim 19, the position of the gap between the first microprotrusion and the second microprotrusion is shifted from the center of the male fitting portion to the other side. 如申請專利範圍第18至20項中任一項所述的筆具，其中，前述第1微小突起的前端面具有比垂直狀態的前述第1微小突起之水平方向的剖面積小的面積。 The writing instrument according to any one of the first aspect of the invention, wherein the front end surface of the first microprotrusion has an area smaller than a cross-sectional area of the first microprotrusion in a vertical state in a horizontal direction. 如申請專利範圍第21項所述的筆具，其中，前述第1微小突起之相對向的兩個側面從前述第1微小突起的前端側朝向前述公型嵌合部傾斜。 The writing instrument according to claim 21, wherein the two side faces of the first microprotrusions are inclined from the distal end side of the first microprotrusion toward the male fitting portion. 如申請專利範圍第21或22項所述的筆具，其中，前述第2微小突起的前端面具有比垂直狀態的前述第2微小突起之水平方向的剖面積小的面積。 The writing instrument according to claim 21, wherein the distal end surface of the second microprotrusion has an area smaller than a cross-sectional area of the second microprotrusion in a vertical state in a horizontal direction. 如申請專利範圍第23項所述的筆具，其中，前述第2 微小突起之相對向的兩個側面從前述第2微小突起的前端側朝向前述公型嵌合部傾斜。 A writing instrument according to claim 23, wherein the second The two side faces facing each other in the microprotrusions are inclined from the distal end side of the second microprotrusion toward the male fitting portion. 一種墨水匣，係適合申請專利範圍第19至24項中任一項所述的前述筆具主體者，該墨水匣包含收容墨水的筒狀容器、以及將前述容器之開口部加以密閉的圓板狀的栓，在前述栓的中央設有圓柱突起，前述圓柱突起的長度比前述第1微小突起與前述第2微小突起之間的前述間隙的深度短，並且前述圓柱突起的直徑比前述第1微小突起與前述第2微小突起之間的前述間隙的寬度短。 An ink cartridge which is suitable for the above-described writing instrument body according to any one of claims 19 to 24, wherein the ink cartridge comprises a cylindrical container for accommodating ink, and a circular plate for sealing the opening of the container a plug having a cylindrical projection at a center of the plug, wherein a length of the cylindrical projection is shorter than a depth of the gap between the first microprotrusion and the second microprotrusion, and a diameter of the cylindrical projection is larger than the first The width of the gap between the minute protrusion and the second minute protrusion is short.
TW105139224A 2015-11-30 2016-11-29 Ink cartridge and pen TWI689423B (en)

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