TWI689423B - Ink cartridge and pen - Google Patents

Ink cartridge and pen Download PDF

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Publication number
TWI689423B
TWI689423B TW105139224A TW105139224A TWI689423B TW I689423 B TWI689423 B TW I689423B TW 105139224 A TW105139224 A TW 105139224A TW 105139224 A TW105139224 A TW 105139224A TW I689423 B TWI689423 B TW I689423B
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Taiwan
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plug
protrusion
ink cartridge
writing instrument
ink
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TW105139224A
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Chinese (zh)
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TW201726438A (en
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星野貴宣
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日商百樂股份有限公司
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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 cartridge and pen

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 invention relates to a replaceable ink cartridge and a writing instrument provided with the ink cartridge, in particular to an ink cartridge and a writing instrument provided with an ink leakage prevention 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。 In the past, a writing implement with a replaceable ink cartridge has been known. The structure of the conventional ink cartridge is provided with a cylindrical container that contains ink, and a stopper that closes the opening of the container. Conventional plugs consist of balls or discs. The pen body corresponding to the ink cartridge is provided with a protrusion 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 Patent Laid-Open No. 2008-006794 (Patent Document 1) includes a protrusion 53a for opening the plug 9 of the ink cartridge 7. The protruding piece 53a is provided in the connection pipe portion 53. The connection tube 53 is attached to the opening of the ink cartridge 7. When the connection tube portion 53 is pushed into the opening of the ink cartridge 7, the protrusion 53 a pushes the peripheral portion of the plug 9. With this, the plug 9 can be detached from the opening of the ink cartridge 7. Next, the ink in the ink cartridge 7 is supplied to the ink storage body 3 through the connection tube 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 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 through the opening. Therefore, the applicant of the present case proposed a writing implement equipped with an ink leakage prevention mechanism in 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 pen 101 disclosed in FIGS. 4(a) to (c) of Patent Document 2 includes a pen body 102 and an ink cartridge 106. A rod-shaped protrusion 152 is provided in the center of the writing instrument body 102. In addition, a small protrusion 155 is formed at the front end of the protrusion 152. The small protrusion 155 has the function of a male fitting portion. On the other hand, the ink cartridge 106 includes a plug 108. The plug 108 has a structure that can be detachably attached to the opening 172 of the ink cartridge 106. A small hole 183 is provided at the front end of the plug 108. The small hole 183 has the function of 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 protrusion 155 of the protrusion 152 is fitted into the small hole 182 of the plug 108. The protruding portion 152 pushes the plug 108 while keeping the small protrusion 155 and the small hole 182 fitted. With this, the plug 108 can be detached from the opening 172 of the ink cartridge 106. Then, the ink in the ink cartridge 106 is supplied to the ink storage body 104 through the ink induction 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 withdrawn from the writing instrument body 102, the plug 108 fitted to the small protrusion 155 is inserted into the opening 172 of the ink cartridge 106 again. When the fitting of the small protrusion 155 and the small hole 182 is released, the plug 108 is fitted into the opening 172 of the ink cartridge 106. As a result, the opening 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.

[先前技術文獻] [Prior 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 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 Specification

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

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 an excellent effect of preventing leakage of residual ink when the ink cartridge 106 is replaced. However, there is a problem that the ink cartridge 106 of Patent Document 2 cannot be applied to the writing instrument 1 provided with the protruding piece 53a in the connecting tube portion 53 as disclosed in Patent Document 1. That is, the structure of the writing instrument 1 of Patent Document 1 is to detach the plug 9 by pushing the peripheral portion of the plug 9 by the protrusion 53a. On the other hand, the structure of the writing instrument 101 of Patent Document 2 is to disengage the plug 108 by the protrusion 152 provided in the center of the writing instrument body 102. The protruding piece 53 a provided in the writing instrument 1 of Patent Document 1 cannot detach the plug 108 of the ink cartridge 106 of Patent Document 2. That is, the ink cartridge 106 of Patent Document 2 cannot be used in a writing instrument 101 having a structure different from that of Patent Document 1 for opening the plug.

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-mentioned Patent Document 2 is that the product provider will have a practical problem when replacing the old product with a new product. That is, after the product provider starts to provide a new product with an ink leakage prevention mechanism, it must continue to provide an ink cartridge suitable for the old product. The pens with replaceable ink cartridges are intended to be used repeatedly. If the product provider stops supplying ink cartridges for old products on the occasion of providing new products, it can also The pen body of the used old product is wasted. This violates the environmental protection demands of reducing the waste of resources by repeatedly using the main body of the pen. On the other hand, the continuous supply of both old and new ink cartridges will cause an economic burden on product providers. In addition, the existence of both old and new ink cartridges 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 old product ink cartridges>

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 body 102 of Patent Document 2 has a problem that it cannot be applied to the ink cartridge 7 in which the disc-shaped plug 9 is fitted into the inner peripheral surface of the opening of the container 8 as disclosed in Patent Document 1. That is, it is difficult to use the protruding portion 152 provided in the center of the pen body 102 of Patent Document 2 to smoothly detach the plug 9 of the ink cartridge 7 of Patent Document 1. The reason is that the disc-shaped plug 9 rotates around the axis in the radial direction, and therefore, it is detached from the inner circumferential surface of the opening of the container 8. Even if the protrusion 152 of Patent Document 2 presses the center of the plug 9, the plug 9 cannot be rotated. In particular, a cylindrical protrusion for distinguishing the front and back of the plug 9 is formed in the center of the plug 9 of Patent Document 1. This cylindrical protrusion interferes with the protrusion 152 of Patent Document 2, so that it is extremely difficult to use the protrusion 152 to smoothly detach the plug 9.

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 completed in view of the above problems, and its object is: first, to provide an ink cartridge that can be used in both a writing instrument body suitable for an ink leakage preventing mechanism and an writing instrument body not suitable for an ink leakage preventing mechanism, second , To provide a writing instrument body that can be used on both sides of an ink cartridge suitable for an ink leakage prevention mechanism and an ink cartridge not suitable for an ink leakage prevention mechanism, Third, there is provided a writing instrument provided with the ink cartridge and/or 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 contains ink, and a plug that seals the opening of the container, and the plug is opened by a protrusion provided in the writing instrument body, wherein: The plug includes a first plug and a second plug, the first plug has a plug body fitted to the protrusion, the second plug has an outer peripheral portion fitted to an inner peripheral surface of the opening, and the first plug The ink passing hole into which the plug body of the plug is fitted, the fitting between the plug body of the first plug and the through hole of the second plug can be released by the protrusion, and the outer periphery of the second plug The portion is configured to be detachable from the inner peripheral 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) Preferably, in the ink cartridge of the above (1), the fitting force between the outer peripheral portion of the second plug and the inner peripheral surface of the opening is higher than that of the plug 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) Preferably, in the ink cartridge of the above (1) or (2), the inner peripheral surface constituting the through hole of the second plug is formed in a tapered shape that expands 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) Preferably, in the ink cartridge according to any one of (1) to (3) above, 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 Department of Ebony.

(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 (1) to (4) above, a segment is provided inside the container, and the segment is configured to be separated from the second plug by abutment The first plug to limit the first plug 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) Preferably, in the ink cartridge according to any one of (1) to (5) above, 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) Preferably, in the ink cartridge of the above (6), the female fitting portion is provided inside the plug body, and the female fitting portion includes a hole formed only in front of the plug body And an annular recess provided on the inner peripheral 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) Preferably, in the ink cartridge according to any one of (1) to (7) above, 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 the 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 includes the ink cartridge according to any one of (1) to (9) above, and a writing instrument body in which the ink cartridge is replaceably mounted, and a protrusion is provided on the writing instrument body The protruding portion protrudes rearward from the writing instrument body, and is configured to open either 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) Preferably, in the writing instrument of the above (10), the protrusion is arranged at the center of the writing instrument body, has a width in the short-side direction through which the second plug can pass through the hole, and is configured to be The main body of the plug that fits into the first plug; the fitting force between the protruding portion and the main body of the plug is better than the fitting between the outer peripheral portion of the second plug and the inner peripheral surface of the opening Little power.

(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) Preferably, in the writing instrument of (11) above, a male fitting portion or a female fitting portion is provided on the protrusion, and the male fitting portion or the female fitting portion is configured as Can be fitted to the aforementioned 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) Preferably, in the writing instrument of the above (12), a female fitting portion is provided on the inner side of the plug body, and the female fitting portion includes a hole formed only in front of the plug body, And an annular recessed portion provided on the inner peripheral surface of the hole, the male fitting portion is provided at the front end of the protruding portion, and the male fitting portion has a plurality of pieces that can be fitted into any part of the annular recessed portion 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) Preferably, in the writing instrument according to any one of (11) to (13) above, the protrusion has a width in the short-side direction that is substantially equal to the diameter of the through hole of the second plug, and is inserted When passing the aforementioned hole, the passing hole is divided into two.

(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) Preferably, in the writing instrument of the above (14), the protrusion is provided at the center of the partition wall dividing the inside of the writing instrument main body, and the partition wall is sandwiched by the protrusion At least two through holes are provided, and at least two flow paths corresponding to the through holes are provided on the 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) Preferably, in the writing instrument according to any one of (11) to (15) above, the writing instrument main body is provided with a closed connection portion, and the closed connection portion is composed of a cylindrical wall portion surrounding the protrusion portion And has an outer peripheral surface that can be tightly fitted to the inner peripheral 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) Preferably, in the writing instrument of the above (10), the writing instrument main body is provided with a sealed connection portion having an outer peripheral surface that can be tightly fitted into the inner peripheral surface of the opening portion, in The sealed connection portion is provided with the protruding portion that protrudes rearward from the sealed connection portion, and is configured such that the second plug can be pressed by pushing the peripheral portion of the second plug toward the rear of the container 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) Preferably, in the writing instrument of any one of (12) to (16) above, a female fitting portion is provided inside the plug body, and the female fitting portion includes only the plug body A hole with an opening formed in the front, and an annular recessed portion provided on the inner peripheral surface of the hole, the male fitting portion is provided at the front end of the protruding portion, and the male fitting portion has a shape capable of being fitted in the annular shape A plurality of convex surfaces of any part of the recessed portion are provided with a first microprotrusion at the front end of the male fitting portion, the first microprotrusion is located off the center of the male fitting portion, is located on one side, and is inserted from the male fitting The engaging portion protrudes toward the rear, and has a length that does not contact the plug body when the male fitting portion is fitted in 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) Preferably, in the writing instrument of the above (18), a second minute protrusion is provided at the front end of the male fitting portion, and the second minute protrusion is located away from the center of the male fitting portion and located The other side protrudes rearward from the male fitting portion, has a shorter length than the first minute protrusion, and forms a gap between the first minute protrusion and the first minute protrusion.

(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) Preferably, in the writing instrument of the above (19), the position of the gap between the first minute protrusion and the second minute protrusion is deviated from the center of the male fitting portion to be closer to the other 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) Preferably, in the writing instrument according to any one of (18) to (20) above, the front end surface of the first minute protrusion has a smaller cross-sectional area in the horizontal direction than the vertical direction of the first minute protrusion 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) Preferably, in the writing instrument of (21) above, two opposing side surfaces of the first minute protrusion are inclined from the front end side of the first minute protrusion 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) Preferably, in the writing instrument of (21) or (22), the front end surface of the second minute protrusion has an area smaller than the horizontal cross-sectional area of the second minute protrusion in the vertical state.

(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) Preferably, in the writing instrument of the above (23), two opposing side surfaces of the second minute protrusion are inclined from the front end side of the second minute protrusion 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 of the present invention is suitable for the writing instrument main body of any one of (19) to (24) above, and the ink cartridge includes a cylindrical container accommodating ink, and the opening of the container is sealed A disc-shaped plug, a cylindrical protrusion is provided in the center of the plug, the length of the cylindrical protrusion is shorter than the depth of the gap between the first minute protrusion and the second minute protrusion, and the diameter of the cylindrical protrusion is The width of the gap between the first minute protrusion and the second minute protrusion 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 "front" represents the direction of the pen tip of the writing instrument and the direction of the opening of the ink cartridge, and the term "rear" represents 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 present invention can be used in an ink leak-proof machine Both the structured pen body and the pen body that is not suitable for the ink leakage prevention mechanism. That is, the ink cartridge of the present invention can be used in two types of writing instrument bodies with different structures for opening the plug. In addition, the ink cartridge of the present invention is suitable for both the writing instrument of a new product equipped with an ink leakage prevention mechanism and the writing instrument of an old product without an ink leakage prevention mechanism. Therefore, when replacing an old product with a new product, a product provider only needs to provide an ink cartridge with the structure of the present invention on the market. In addition, users of both new and old products only need to 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 provided with the minute protrusions of the present invention can be used for both the ink cartridge suitable for the ink leakage prevention mechanism and the ink cartridge not suitable for the ink leakage prevention mechanism. That is, the writing instrument body provided with minute protrusions of the present invention can smoothly open both the plug of the ink cartridge provided with the ink leakage prevention mechanism and the plug of the ink cartridge without the ink leakage prevention mechanism. Therefore, even if the old and new ink cartridges circulate on the market immediately after replacing the old product with a new product, the ink cartridges of both the old and the new can be used in the pen body of the new product.

1、100‧‧‧筆具 1.100‧‧‧pen

2、4、5、6‧‧‧筆具主體 2, 4, 5, 6‧‧‧ main body

3‧‧‧墨水匣 3‧‧‧Ink cartridge

11‧‧‧軸筒 11‧‧‧Shaft

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 absorber

14‧‧‧蓋子 14‧‧‧ lid

20、60‧‧‧中間構件 20、60‧‧‧Intermediate component

21、61‧‧‧管 21, 61‧‧‧ tube

21a、61a‧‧‧貫通孔 21a, 61a‧‧‧through hole

22、62‧‧‧突起部 22, 62 ‧‧‧ protrusion

22A‧‧‧小突起(公型嵌合部) 22A‧‧‧Small protrusion (male fitting part)

22B‧‧‧第1微小突起 22B‧‧‧The first tiny protrusion

22C‧‧‧第2微小突起 22C‧‧‧The second tiny protrusion

22D‧‧‧間隙 22D‧‧‧Gap

22a‧‧‧凸部 22a‧‧‧Convex

22b‧‧‧流路 22b‧‧‧Flow

22c、22e‧‧‧前端面 22c, 22e‧‧‧front face

22d、22f‧‧‧側面 22d, 22f‧‧‧Side

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

30‧‧‧容器 30‧‧‧Container

31‧‧‧開口部 31‧‧‧Opening

32‧‧‧肋部 32‧‧‧rib

32a‧‧‧段部 32a‧‧‧

40、70‧‧‧第1栓 40, 70‧‧‧ first plug

41、71‧‧‧栓主體 41, 71‧‧‧ main body

41a、71a‧‧‧孔(母型嵌合部) 41a, 71a‧‧‧ hole (female mating part)

41b、71b‧‧‧環狀凹部(母型嵌合部) 41b, 71b‧‧‧‧Annular concave part (female mating part)

41c、71c‧‧‧前端側部分 41c, 71c‧‧‧ Front part

41d、71d‧‧‧錐面 41d, 71d‧‧‧cone

42、72‧‧‧鍔部 42、72‧‧‧E

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

42b、72b‧‧‧抵接部 42b、72b‧‧‧Abutment Department

42c、72c‧‧‧墨水通路 42c, 72c‧‧‧Ink channel

50‧‧‧第2栓 50‧‧‧The second bolt

51‧‧‧圓筒狀主體 51‧‧‧Cylinder-shaped main body

51a‧‧‧通過孔 51a‧‧‧Through hole

51b‧‧‧錐面 51b‧‧‧cone

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

52a‧‧‧嵌合凸部 52a‧‧‧fitting convex part

80‧‧‧栓 80‧‧‧bolt

81‧‧‧圓柱突起 81‧‧‧Cylinder 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 aforementioned writing instrument. FIG. 1B is a horizontal cross-sectional view showing the aforementioned writing instrument. FIG. 1C is a partially 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 vertical cross-sectional view showing a state before the ink cartridge shown in FIG. 1A is attached to the writing instrument body. FIG. 2B is a partially 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 an intermediate member constituting the aforementioned 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。 FIGS. 4A to 4C are cross-sectional views of main parts in the vertical direction showing the process until the ink cartridge is attached to the writing instrument body. FIGS. 4D to 4F are cross-sectional views of main parts in the horizontal direction corresponding to FIGS. 4A to 4C, 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 main parts in the vertical direction showing the process until the ink cartridge is detached from the writing instrument body. FIGS. 5D to 5F are cross-sectional views of main parts in the horizontal direction corresponding to FIGS. 5A to 5C, 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 vertical cross-sectional view showing other writing instruments including the ink cartridge. FIGS. 6B and 6C are cross-sectional views of main parts in the vertical direction showing the process until the ink cartridge is attached to the writing instrument body of the other writing instrument.

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 diagrams showing an ink cartridge according to 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 a writing instrument body according to a second embodiment of the present invention. Fig. 8B is an enlarged view showing the protrusion 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 protrusion. Fig. 9B is a side view showing the aforementioned 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 disc-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。 FIGS. 11A and 11B are diagrams showing the aforementioned writing instrument body to which an ink cartridge equipped with an ink leakage prevention mechanism is attached. FIG. 11A is a cross-sectional view of main parts in the vertical direction, and FIG. 11B is a cross-sectional view of main parts 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。 FIGS. 12A to 12C are cross-sectional views of main parts in the horizontal direction showing the process until the ink cartridge without the ink leakage prevention mechanism is attached to the pen body. FIG. 12D is a cross-sectional view of the main 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 showing the main part of the intermediate member of the writing instrument body according to the third embodiment of the present invention. FIG. 13B is a cross-sectional view of a main part in the horizontal direction of the writing instrument body to which the ink cartridge without the ink leakage prevention 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 writing instrument of the present invention will be described with reference to the drawings. In addition, the ink cartridge and writing instrument of the present invention are not limited to the embodiments described below.

〈筆具〉 <pen>

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 this embodiment includes a writing instrument body 2 and an ink cartridge 3. The ink cartridge 3 is accommodated in the barrel 11 of the writing instrument body 2. The axle barrel 11 is composed of a front axle 11A and a rear axle 11B. The front axle 11A and the rear axle 11B are detachably combined by screwing. The ink cartridge 3 housed 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 this embodiment includes a cylindrical container 30 that contains 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 31 at the front end and a bottom at the rear end. The container 30 contains ink (not shown). A plurality of ribs 32 are formed on the inner peripheral surface behind the container 30 at equal intervals. The ribs 32 smooth the flow of ink in the container 30. In addition, the front end surface of each rib 32 forms a plurality of segment portions 32 a located behind the opening 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 synthetic resin. For the material of the container 30, for example, synthetic resin such as polypropylene is suitable. The container 30 is preferably made of a transparent or translucent synthetic resin so that the color and residual amount of the ink contained therein can be recognized. 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 about 18 mm. As a result, 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 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 stored 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, oil-based ink for a writing board is applied. The oily ink for writing board contains solvents and additives. For example, the solvent of oil-based ink used in the clipboard is a mixture of ethanol and isopropyl alcohol The resulting solvent. In addition, additives such as pigments, resins, and release agents are used as additives for the oil-based ink for writing boards. The oil-based ink for writing boards contains the above-mentioned solvents and additives, and thus has good dryness and erasability of handwriting. In addition, the ink contained in the container 30 is not particularly limited. The ink contained in the container 30 may be, for example, oil-based ink without a release agent, or aqueous ink using 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 this embodiment includes an ink leakage prevention mechanism. The ink leakage prevention mechanism is configured to seal the opening 31 of the container 30 again with the plugs 40 and 50 when the ink cartridge 3 is detached from the writing instrument body 2. In addition, the structures of the plugs 40 and 50 of this embodiment can be opened by both the writing instrument main body 2 suitable for the ink leakage preventing mechanism and the writing instrument main 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 form a single plug that closes the opening 31 of the container 30 by being fitted to each other. 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 51 a provided in the second plug 50. A hole 41a opened only in the front is formed in the plug body 41. The hole 41a does not penetrate the plug body 41. An annular recess 41b is provided on the inner peripheral 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 41 a and the annular recess 41 b constitute a female-type fitting portion for fitting with the protrusion 22 of the writing instrument body 2. That is, a male fitting portion is provided at the front end of the protrusion 22 of the writing instrument body 2 的小突22A. The small protrusion 22A has a pair of convex portions 22a. When the small protrusion 22A of the protrusion 22 is inserted into the hole 41a of the plug body 41, the pair of protrusions 22a are fitted into any part 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 portion 41c of the plug body 41 is slightly thinner. The thinner front end side portion 41c is easily deformed by external force. As a result, the front end portion 41c of the plug body 41 is smoothly fitted into the passage hole 51a of the second plug 50. Further, on the circular end surface of the front end side portion 41c of the plug body 41, a tapered surface 41d on the outer periphery and a tapered surface 41d on the inner periphery are formed. The tapered surface 41d on the outer periphery guides the front end side portion 41c of the plug body 41 into the passage hole 51a of the second plug 50. As a result, the front end portion 41c of the plug body 41 is more smoothly fitted into the passage hole 51a of the second plug 50. On the other hand, the tapered surface 41d on the inner periphery guides the small protrusion 22A of the writing instrument body 2 into the hole 41a of the plug body 41. Thereby, the convex portion 22a of the small protrusion 22A does not hit the entrance of the hole 41a. As a result, the convex portion 22a of the small protrusion 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 flange portions 42 are radially arranged at equal intervals at the rear end of the plug body 41. The flange portion 42 is composed of an inner portion and an outer portion bent at a right angle, and has a fan-shaped overall shape. The inner portion forms a fitting recess 42a in front of the flange 42. The outer portion forms a contact portion 42b behind the flange portion 42. Both the fitting recess 42a and the contact portion 42b have an arc shape. The fitting recess 42a is fitted into the cylindrical body 51 of the second plug 50 described later. On the other hand, the contact portion 42b is in contact with the segment portion 32a of the container 30 described above. The four spaces between the flange portions 42 each form a slit-shaped ink passage 42c. When the first plug 40 and the second plug When the fitting of 50 is released, the ink in the container 30 flows to the opening 31 side through the ink passage 42c. Then, the ink is supplied to the writing instrument body 2 (or 6) through the passage 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 body 51 and an annular outer peripheral portion 52. The cylindrical body 51 constitutes the ink passage hole 51a. Specifically, the through hole 51a is formed by the inner peripheral surface of the cylindrical body 51. The through hole 51a is opened at both the front and the rear. The opening behind the hole 51a becomes the entrance of the plug body 41 of the first plug 40 described above. On the inner circumferential surface of the cylindrical body 51, a tapered surface 51b is formed that extends from the approximate center of the through hole 51a toward the rear. The tapered surface 51b guides the front end side portion 41c of the plug body 41 to the center of the passage hole 51a. As a result, the front end portion 41c of the plug body 41 is more smoothly fitted into the passage 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 so as 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 31 of the container 30. As shown in FIG. 3B, the annular outer peripheral portion 52 is provided with fitting convex portions 52a along the circular side surfaces. As shown in FIG. 2B, the fitting convex portion 52 a is fitted into an annular concave portion provided on the inner peripheral surface of the opening 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. An annular convex portion is formed before and after the annular concave portion. The fitting convex portion 52a passes over the front annular convex portion and is coupled to the fitting concave portion behind it. In addition, the fitting convex portion 52a is such that, when it is pushed by the force toward the rear of the container 30, it will pass over the annular convex portion at the rear and go from the inside of the opening 31 of the container 30 The detached structure around the 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 in the unused ink cartridge 3. That is, the ink cartridge 3 of this embodiment circulates on the market in the fitted 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 FIG. 2B, the plug body 41 of the first plug 40 is fitted into the passage hole 51a of the second plug 50. The fitting force between the plug body 41 and the passage hole 51a is referred to as "first fitting force". In addition, the four flange portions 42 of the first plug 40 are fitted behind the cylindrical body 51 of the second plug 50. The fitting force between each flange portion 42 and the cylindrical body 51 is referred to as "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 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 31 is referred to as "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 greater than the sum of the first fitting force and the second fitting force. That is, even if 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 will not be released. In this case, only the fitting between the first plug 40 and the second plug 50 will be released. The fitting between the second plug 50 and the opening 31 of the container 30 is released only 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 Value to facilitate fitting between the first plug 40 and the second plug 50. Thereby, the first plug 40 can be fitted into 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 in the unused ink cartridge 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 sum of the first fitting force and the second fitting force is, for example, in the range of 0.5 kgf to 4 kgf, preferably in the range of 1 kgf to 2 kgf. The sum of the first fitting force and the second fitting force can be set to 1.5 kgf, for example. On the other hand, the third fitting force is, for example, in the range of 4 kgf to 10 kgf, preferably in the range of 4 kgf to 8 kgf. The third fitting force can be set to 7 kgf, for example. A specific example of the refitting 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。 Furthermore, various structures can be applied to "fitting" for generating the first, second, and third fitting forces. For the container 30, the first plug 40, and the second plug 50 constituting the ink cartridge 3, various structures such as overfitting, surface fitting, or concave-convex fitting can be applied, for example. Over-fitting refers to a structure in which the first convex portion is joined over the second convex portion. Surface fitting refers to a structure in which the first surface and the second surface are in close contact and joined. The concave-convex fitting refers to a structure in which the concave shape matches the convex shape and is combined.

〈筆具主體〉 <Pencil 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 main body 2 of this embodiment includes a shaft barrel 11, a pen point 12, an ink storage body 13, a cover 14, and an intermediate member 20. As described above, the shaft barrel 11 of this embodiment includes the front shaft 11A and the rear The shaft 11B is constituted. The pen tip 12, the ink absorbing body 13, and the intermediate member 20 are all provided on the front shaft 11A. Hereinafter, the front shaft 11A and the rear shaft 11B will be described, and thereafter, the pen point 12, the ink storage 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 axle 11A and the rear axle 11B are hollow cylindrical bodies, and are manufactured by injection molding of synthetic resin. For the materials of the front axle 11A and the rear axle 11B, synthetic resins such as polypropylene and polyethylene are used, for example.

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 point 12 is provided at the front end of the front shaft 11A. The front end hole communicates with the internal space of the front shaft 11A. The rear end of the pen tip 12 held in the front end hole protrudes into the internal space of the front shaft 11A. Here, a rib (not shown) is formed on the inner peripheral surface of the tip hole. This rib holds the pen tip 12 in the front end hole by crimping on the outer peripheral surface of the pen tip 12. In addition, the rib forms an air passage between the outer circumferential surface of the pen tip 12 and the inner circumferential surface of the tip 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。 An ink storage body 13 is housed in front of the inner space of the front shaft 11A. The rear end of the pen tip 12 is inserted into the ink storage body 13. A plurality of ribs corresponding to the ink absorbing body 13 are formed on the inner peripheral surface of the front shaft 11A. The ribs extend in parallel in the front-rear direction of the front shaft 11A at intervals. Each rib holds the ink storage body 13 in the internal space of the front shaft 11A by crimping on the outer peripheral surface of the ink storage body 13. In addition, each rib forms an air passage between the outer peripheral surface of the ink storage body 13 and the inner peripheral 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。 An intermediate member 20 is fitted behind the ink storage body 13 in the internal space of the front shaft 11A. On the inner peripheral surface of the front axle 11A, there is a The illustrated ring rib. The annular rib is fitted on the outer peripheral surface of the intermediate member 20. With this, the intermediate member 20 is held at a predetermined position in the internal space of the front axle 11A. The ink cartridge 3 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。 Female threads are provided on the inner peripheral surface behind the front shaft 11A. On the other hand, male screws are provided on the outer peripheral surface in front of the rear axle 11B. The front axle 11A and the rear axle 11B are combined to be detachable by screwing the female threads with the male screws. The rear axle 11B covers the ink cartridge 3 mounted on the intermediate member 20. The rear axle 11B is preferably made of transparent or translucent synthetic resin so that the color and residual amount of the ink contained in the ink cartridge 3 can be recognized.

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 this embodiment is, for example, a signature pen tip. The signature pen is manufactured by processing synthetic resin fibers such as polyester fiber, acrylic fiber, nylon fiber, etc. into a rod shape. The tip of the pen tip 12 shown in the figure is ground into a shell shape. The shape of the tip of the pen tip 12 is not particularly limited. The tip of the pen point 12 may be processed into a chisel shape, for example. In addition, the pen tip 12 is not limited to the signature pen tip. As the pen tip 12, for example, a pen tip of a ballpoint pen or a pen can be used.

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 storage body 13 of the present embodiment is composed of, for example, synthetic resin fibers such as polyester fibers processed into a cylindrical shape. The outer peripheral surface of the ink storage body 13 is covered with a cylindrical film. As the material of the film, for example, polyethylene terephthalate is suitable. The structure of the ink storage body 13 is not particularly limited as long as it can temporarily hold ink. As the ink storage body 13, for example, a refill constituting a fountain pen can also be applied. The refill is a wrinkled member provided with a plurality of horizontal grooves, which can temporarily hold 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 this embodiment is shown in Figure 1A, Figure 1B, Figure 2A, and Figure 3C. The intermediate member 20 is manufactured by injection molding of synthetic resin, for example. For the material of the intermediate member 20, for example, synthetic resins such as polypropylene and polyethylene are suitable. The intermediate member 20 is a component for attaching the ink cartridge 3 to the writing instrument body 2. The ink contained in the ink cartridge 3 is supplied to the ink storage 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 a partition wall for dividing the internal space of the front shaft 11A. Two through holes 21a are formed in the partition wall. On the surface in front of the partition wall, two tubes 21 communicating with the through holes 21a are provided. On the other hand, a protrusion 22 and a sealed connection 23 are provided on the surface behind the partition wall. In addition, an annular segment is formed on the outer peripheral surface of the intermediate member 20. The intermediate member 20 is fitted into the aforementioned annular rib formed on the inner peripheral surface of the front shaft 11A. Thereby, the intermediate member 20 is held in the internal space of the front axle 11A. The internal space of the front axle 11A is sealed by the intermediate member 20, and only the two through holes 21a formed in the partition wall communicate with the inside and outside of the internal space. The two through holes 21a are used to exchange air and ink in the internal space. Both the front ends of the two tubes 21 are inserted into the ink storage body 13. Ink is supplied to the ink storage body 13 through one tube 21. With the supply of ink, air will be pushed out from the internal space. The air system is discharged out 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 protrusion 22 opens only the first stopper 40 of the ink cartridge 3 and effectively operates the ink leakage prevention mechanism of the ink cartridge 3. The protrusion 22 is arranged 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, a small protrusion 22A is provided at the front end of the protrusion 22. The small protrusion 22A is configured to interact with the first plug 40 Mating male fitting part. The small protrusion 22A has a width corresponding to the diameter of the hole 41 a of the plug body 41 provided in the first plug 40. As shown in FIGS. 1C and 3C, a pair of convex portions 22a are formed on both side surfaces of the small protrusion 22A. When the small protrusion 22A of the protrusion 22 is inserted into the hole 41a of the plug body 41, the pair of protrusions 22a are fitted into any part of the annular recess 41b. The protrusion 22 pushes only the first plug 40 backward while maintaining the fitting of the convex portion 22a and the annular concave portion 41b to release the fitting between the first plug 40 and the second plug 50 (refer to 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 this embodiment has a function of dividing the path through which ink and air flow into two. That is, the protrusion 22 is positioned between the two through holes 21a. On the side surface of the protrusion 22, two flow paths 22b corresponding to the respective through holes 21a are formed. Each flow path 22b is formed of a groove portion having a substantially semicircular cross section that extends in the front-rear direction. As shown in FIGS. 1A and 1B, the protrusion 22 has a width in the short-side direction that is substantially equal to the diameter of the passage hole 51a of the second plug 50. When such a protrusion 22 is inserted into the through hole 51a, the through hole 51a is divided into two. The flow path 22b having the protruding portion 22 passes through the hole 51a. The other channel 22b having the protrusion 22 passes through the other side of the passage hole 51a. As a result, ink flows through the one flow path 22b of the protrusion 22, and air flows through the other flow path 22b of the protrusion 22. The other flow path 22b in which air flows is not blocked by ink (liquid-tight state). Thereby, the internal space of the front axle 11A and the internal pressure of the ink cartridge 3 can be kept balanced. As a result, it is possible to constantly supply ink to the nib 12 stably, and to achieve stable writing without obscuring 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 hermetic connection with the ink cartridge 3. The closed connection portion 23 is composed of a cylindrical wall portion surrounding the protrusion 22. The sealed connection portion 23 has an outer peripheral surface that can be tightly fitted into the inner peripheral surface of the opening portion 31 of the ink cartridge 3. With such a sealed connection portion 23, the internal space of the front shaft 11A and the container 30 of the ink cartridge 3 communicate with each other in a sealed state.

〈墨水匣的安裝〉 <Installation of Ink Cartridge>

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 FIGS. 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 body 2 and the unused ink cartridge 3 are separated from each other. The fitting state of the first plug 40 and the second plug 50 in the unused ink cartridge 3 is shown in FIG. 2B. Among the unused ink cartridges 3, the front end side portion 41c of the plug body 41 of the first plug 40 is deeply fitted into the front end of the passage hole 51a of the second plug 50. In addition, the fitting recess 42 a of each flange portion 42 of the first plug 40 is fitted behind the cylindrical body 51 of the second plug 50. Due to the fitting state of the first stopper 40 and the second stopper 50 shown in FIG. 2B, the unused ink cartridge 3 does not leak ink during circulation in 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. As a result, the protrusion 22 and the closed connection portion 23 of the intermediate member 20 are inserted into the opening 31 of the ink cartridge 3. The small protrusion 22A of the protrusion 22 is inserted into the hole 41 a of the first plug 40. At this time, the segment formed between the protrusion 22 and the small protrusion 22A (see (According to FIG. 3C) abuts against the tip of the first plug 40. At the same time, the pair of convex portions 22a of the small protrusion 22A is fitted into any part of the annular concave portion 41b of the first plug 40 (see FIG. 1C). On the other hand, the front end portion of the closed 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 further inserted toward the opening of the rear end of the front shaft 11A of the writing instrument body 2. At this time, the protrusion 22 pushes only the first plug 40 backward. With this, the fitting between the fitting recess 42a of each flange portion 42 of the first plug 40 and the cylindrical body 51 of the second plug 50 is released. In addition, the fit between the plug 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 31 of the ink cartridge 3 is maintained in this state. On the other hand, the closed connection portion 23 is further inserted into the opening 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 completely inserted into the rear end opening of the front shaft 11A of the writing instrument body 2. At this time, the protrusion 22 passes through the passage hole 51a of the second plug 50. With this, the fitting between the plug body 41 of the first plug 40 and the passage hole 51a of the second plug 50 is released. At this time, the contact portion 42b of each flange portion 42 of the first plug 40 abuts on the segment portion 32a in the container 30 of the ink cartridge 3. As a result, the first plug 40 is held between the protrusion 22 and the segment 32a while maintaining the fitting state with the small protrusion 22A. On the other hand, the hermetic connection portion 23 is completely inserted into the opening 31 of the ink cartridge 3 and hermetically fits on the inner circumferential surface of the opening 31. As a result, 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 is formed between the The four ink passages 42c are supplied to the through holes 51a of the second plug 50. The passage hole 51 a of the second plug 50 is divided into two by the protrusion 22. Ink is supplied to the internal space of the front axle 11A through one of the passing 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 of the passing holes 51a. Then, the internal space of the front axle 11A and the internal pressure of the container 30 can be balanced. The ink supplied to the internal space of the front shaft 11A is held by the ink storage body 13 and supplied to the pen tip 12.

〈墨水匣的卸下〉 <Removal of the ink cartridge>

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 state as 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 cartridge 3 shown in FIGS. 5A and 5D is withdrawn 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。 While the ink cartridge 3 is being withdrawn, the second plug 50 will approach the first plug 40. That is, the first plug 40 is fitted into the small protrusion 22A of the writing instrument body 2. On the other hand, the second plug 50 is fitted into the opening 31 of the ink cartridge 3. In this structure, when the ink cartridge 3 moves backward, the second plug 50 moves backward along the side surface of the protrusion 22. As a result, the second plug 50 travels straight toward the first plug 40 fitted to the small protrusion 22A of the protrusion 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 backward passes the side surface of the protrusion 22 to reach the outer peripheral surface of the first plug 40 that is fitted into the small protrusion 22A. As a result, the front end portion 41c of the plug body 41 of the first plug 40 is fitted into the through hole 51a of the second plug 50 again. That is, the through hole 51a of the second plug 50 is sealed again by the first plug 40. As a result, as shown in FIGS. 5C and 5F, when the ink cartridge 3 is completely drawn out 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 out.

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-fitting between the first plug 40 and the second plug 50 shown in FIGS. 5C and 5F does not need to be the completely fitted state shown in FIG. 2B. The refitting 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 the user disposes of the used ink cartridge 3 for a short period of time. The re-fitting force between the first plug 40 and the second plug 50 is, for example, within a range of 0.01 kgf to 1 kgf, and preferably within a range of 0.01 kgf to 0.5 kgf. The refitting force between the first plug 40 and the second plug 50 can be set to 0.3 kgf, for example.

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

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 this embodiment cooperates with the protrusion 22 of the writing instrument body 2 to effectively operate the ink leakage prevention mechanism. In addition, the ink cartridge 3 of the present embodiment can also be used in the writing instrument main body 4 that is not suitable for the ink leakage prevention 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 body 4 shown in FIG. 6A has the same structure as the writing instrument body 2 except for the intermediate member 60. Figure 6A in the middle The member 60 is a component for mounting the ink cartridge 3 on the writing instrument body 4. The ink contained in the ink cartridge 3 is supplied to the ink storage 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 internal space of the front axle 11A. Two through holes 61a are formed in the partition wall. On the surface in front of the partition wall, two tubes 61 communicating with the through holes 61a are provided. On the other hand, a sealed connection portion 63 is provided on the surface behind the partition wall. The closed connection portion 63 is composed of a cylindrical wall portion. The hermetic connection portion 63 has an outer peripheral surface that can be tightly fitted to the inner peripheral 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 described above, the intermediate member 60 has a structure in which the protruding portion 62 is provided in the closed connection portion 63. The protruding portion 62 is constituted by a wall portion connected to the closed connection portion 63 and protrudes rearward from the closed connection portion 63. The protrusion 62 has an inclined front end portion. The plugs 40 and 50 of the ink cartridge 3 can be opened by the protrusion 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 until the plugs 40 and 50 of the ink cartridge 3 are opened by the protrusions 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 body 4. As a result, the protruding portion 62 and the closed connection portion 63 of the intermediate member 60 are inserted into the opening 31 of the ink cartridge 3. As shown in FIG. 6B, the front end portion of the protrusion 62 abuts on the annular outer peripheral portion 52 of the second plug 50. Next, the ink cartridge 3 is further inserted toward the rear end opening of the front shaft 11A of the writing instrument body 4. At this time, the protrusion 62 pushes only the annular outer peripheral portion 52 of the second plug 50 rearward. Then, as shown in Figure 6C, the ink The cassette 3 is completely inserted into the rear end opening of the front shaft 11A of the writing instrument body 4. At this time, the fitting between the annular outer peripheral portion 52 of the second plug 50 and the opening 31 of the ink cartridge 3 is released. As a result, the second plug 50 is detached from the opening 31 of the ink cartridge 3 while 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 the one through-hole 61 a 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 internal space of the front axle 11A and the internal pressure of the container 30 can be balanced. The ink supplied to the internal space of the front shaft 11A is held by the ink storage 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 this embodiment can be used for both the writing instrument main body 2 (FIG. 1A) suitable for the ink leakage prevention mechanism and the writing instrument main body 4 (FIG. 6A) not suitable for the ink leakage prevention mechanism. That is, the ink cartridge 3 of this embodiment can be used for two types of writing instrument main bodies 2 and 4 having different structures for opening the plug. In addition, the ink cartridge 3 of the present embodiment is suitable for both a new writing instrument 1 (FIG. 1A) equipped with an ink leakage prevention mechanism and an old production writing instrument 100 (FIG. 6A) without an ink leakage prevention mechanism. Therefore, when replacing an old product with a new product, a product provider only needs to provide one type of ink cartridge 3 having the structure of the present embodiment on the market. In addition, users of both new and old products only need to select one of the ink cartridges 3 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 this 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 into the second plug 50 shown in FIG. 3B. The first plug 70 and the second plug 50 constitute a single plug that closes 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 this embodiment is characterized by a structure including a single flange portion 72 connected in a circular shape. The rear surface of the flange portion 72 forms a contact surface 72 a that is continuous in a circle. The abutment surfaces 72 a connected in a circular shape can abut on the segments 32 a of all the ribs 32 formed in the container 30. With this flange 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 arranged at equal intervals in the container 30. Each segment 32a of the four ribs 32 abuts on the circular contact surface 72a at equal intervals, and the movement of the flange 72 toward the rear is restricted in a well-balanced manner. That is, according to the ink cartridge of this embodiment, the ink leakage prevention 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。 In addition, the structure other than the flange portion 72 of the first plug 70 is substantially the same as the first plug 50 shown in FIG. 3A. In FIG. 7A, the plug main body 71 is fitted into the ink passage hole 51 a provided in the second plug 50. A hole 71a opened 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 protrusion 22A of the writing instrument body 2 shown in FIG. 2A. When the small protrusion 22A is inserted into the hole 71a of the plug body 71, the pair of convex portions 22a is fitted into any part 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 tip portion 71c of the plug body 71 is slightly thinner. The thin end portion 71c is easily deformed by external force. As a result, the front end side portion 71c of the plug body 71 is smoothly fitted into the passage hole 51a of the second plug 50. In addition, a tapered surface 71d on the outer periphery and a tapered surface 71d on the inner periphery are formed on the circular end surface of the front end portion 71c of the plug main body 71. The tapered surface 71d on the outer periphery guides the front end portion 71c of the plug body 71 into the passage hole 51a of the second plug 50. As a result, the front end portion 71c of the plug body 71 is more smoothly fitted into the passage hole 51a of the second plug 50. On the other hand, the tapered surface 71d on the inner periphery guides the small protrusion 22A of the writing instrument body 2 into the hole 71a of the plug body 71. Thereby, the convex portion 22a of the small protrusion 22A does not collide with the entrance of the hole 71a. As a result, the convex portion 22a of the small protrusion 22A fits into the annular concave portion 71b in the hole 71a more smoothly.

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 flange portion 72, four fitting recesses 72a are provided radially at equal intervals. All four fitting recesses 72a have an arc shape. The fitting recess 72 a is fitted into 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 to the opening 31 side through the ink passage 72c. Then, the ink is supplied to the writing instrument body 2 (or 6) through the passage hole 51a of the second plug 50.

〈筆具主體的第2實施形態〉 <Second embodiment of writing instrument 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 this embodiment is shown in Figs. 11 and 12. The writing instrument body 5 is characterized by the structure of the intermediate member 20 shown in FIG. 8A. The writing instrument body 5 is suitable for the ink cartridge 3 provided with the ink leakage prevention mechanism shown in FIG. 11 and the ink cartridge 3 without the ink leakage prevention 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。 The structure other than the intermediate member 20 of the writing instrument main body 5 is the same as that of the writing instrument main body 2 shown in FIGS. 1A and 1B. Therefore, in this embodiment, the description of the structure of the writing instrument body 5 other than the intermediate member 20 is 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 this embodiment has a partition wall formed with two through holes 21a. A protrusion 22 is arranged in the center of the surface behind the partition wall. A small protrusion 22A is provided at the front end of the protrusion 22. The small protrusion 22A constitutes a male fitting portion for fitting with the first plugs 40 and 70 shown in FIG. 3A or 7A. As described above, the plug bodies 41 and 71 of the first plugs 40 and 70 are provided with holes 41 a and 71 a and annular recesses 41 b and 71 b. The holes 41a and 71a and the annular recesses 41b and 71b constitute a female fitting portion into which the small protrusion 22A is fitted. The structures of the protrusion 22 and the small protrusion 22A of this embodiment are the same as the structure 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。 At the front end of the small protrusion 22A of the intermediate member 20 shown in FIG. 8A, a first minute protrusion 22B, a second minute protrusion 22C and a space are also provided Gap 22D. The first minute protrusion 22B, the second minute protrusion 2C, and the gap 22D can surely open the plug 80 of the ink cartridge 3 that does not have the ink leakage prevention mechanism shown in FIG. 12.

〈第1微小突起〉 <First 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 FIGS. 8B, 9A, and 9B, the first minute protrusion 22B is offset from the center of the small protrusion 22A and located on one side. The first minute protrusion 22B protrudes rearward from the small protrusion 22A. As shown in FIGS. 11A and 11B, the first minute protrusion 22B has a length that does not contact the plug bodies 41 and 71 when the small protrusion 22A is fitted into the holes 41a and 71a and the annular recesses 41b and 71b (see 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 front end surface 22c of the first minute protrusion 22B has an area smaller than the horizontal cross-sectional area of the first minute protrusion 22B in the vertical state (see the horizontal C1-C1 cross-sectional line shown in FIG. 9B). The area of the front end surface 22c of the first minute protrusion 22B is, for example, 0.9 mm 2 . The two opposite side surfaces 22d and 22d of the first minute protrusion 22B are inclined from the front end side of the first minute protrusion 22B toward the small protrusion 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 minute protrusion 22B constituted by the above structure has a function of surely opening the stopper 80 of the ink cartridge 3 without the ink leakage preventing mechanism shown in FIG. 12. That is, the first minute protrusion 22B presses the portion of the disc-shaped plug 80 that deviates from the center. As a result, the disc-shaped plug 80 is detached from the inner peripheral surface of the opening of the container 30 and rotates about the axis in the diameter 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。 In addition, since the first minute protrusion 22B has a front end surface 22c The area of is extremely small, so that the contact state between 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 surface 22c. As a result, the plug 80 pressed by the front end surface 22c will surely rotate about its 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。 In addition, the inclined side surfaces 22d and 22d of the first minute protrusion 22B function as a guide that controls the rotation direction of the plug 80. That is, the plug 80 pushed by the front end face 22c rotates along the inclination of either side 22d, 22d.

〈第2微小突起〉 <Second 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 protrusion 22C is offset from the center of the small protrusion 22A and located on the other side. The second minute protrusion 22C protrudes rearward from the small protrusion 22A. The second minute protrusion 22C has a shorter length than the first minute protrusion 22B (refer to the height H2 shown in FIG. 9B ). Like the first minute protrusion 22B, the second minute protrusion 22C does not contact the plug bodies 41 and 71 when the small protrusion 22A is fitted into the holes 41a and 71a and the annular recesses 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 front end surface 22e of the second minute protrusion 22C has an area smaller than the horizontal cross-sectional area of the second minute protrusion 22C in the vertical state (refer to the horizontal C2-C2 cross-sectional line shown in FIG. 9B). Here, as shown in FIG. 9A, the width W2 of the front end surface 22e of the second minute protrusion 22C is smaller than the width W1 of the front end surface 22c of the first minute protrusion 22B. The area of the front end surface 22e of the second minute protrusion 22C is, for example, 0.7 mm 2 . In addition, the two opposite side surfaces 22f and 22f of the second minute protrusion 22C are inclined from the front end side of the second minute protrusion 22C toward the small protrusion 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 minute protrusion 22C constituted by the above structure can support the mechanical function of the first minute protrusion 22B, so that the disc-shaped plug 80 can be opened more reliably. That is, the front end surface 22e of the short second microprotrusion 22C becomes the fulcrum of the plug 80 that is detached from the inner peripheral surface of the opening of the container 30. The plug 80 is pushed by the front end surface 22e of the long first minute protrusion 22B, and is supported by the front end surface 22e of the short second minute protrusion 22C. As a result, the plug 80 will be in an unstable posture and become unstable. The plug 80 in an unstable state easily rotates along the inclined side surface 22d of the first minute protrusion 22B. In addition, the rotation of the plug 80 is supported by the inclined side surface 22f of the second minute protrusion 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 minute protrusion 22C forms a gap 22D with the first minute protrusion 22B. As shown in FIG. 9B, the gap 22D deviates from the center of the small protrusion 22A and is located close to the other side. As shown in FIG. 10, the gap 22D corresponds to the cylindrical protrusion 81 provided in the center of the plug 80. A specific example of the dimensions of the cylindrical protrusion 81 and the gap 22D is shown in FIG. 10. The cylindrical protrusion 81 is, for example, 2.6 mm in diameter and 2.3 mm in length. On the other hand, the gap 22D is set to, for example, a width of 2.8 mm and a depth of 2.9 mm.

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 constituted by the above-mentioned structure will receive the cylindrical protrusion 81 during the opening of the plug 80 by the first and second minute protrusions 22B and 22C, and restrict the rotation direction of the cylindrical protrusion 81 to two direction. By this, the plug 80 will follow the two of the first minute protrusions 22B Either side 22d, 22d inclines and rotates reliably. That is, the operation of the plug 80 until it is opened from the inner peripheral surface of the opening of the container 30 is precisely controlled by the first minute protrusion 22B, the second minute protrusion 22C, and the gap 22D.

〈適合具備墨水防漏機構的墨水匣〉 <Suitable for ink cartridges with ink leak prevention 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 body 5 of this embodiment is suitable for the ink cartridge 3 provided with the ink leakage prevention mechanism shown in FIGS. 2A and 7, and can normally operate the ink leakage prevention mechanism. Hereinafter, the ink cartridge 3 provided with the first plug 70 of FIG. 7A will be exemplified, and the case where the pen body 5 of this embodiment is suitable for the ink cartridge 3 provided with the ink leakage prevention mechanism will be described. In addition, the writing instrument body 5 of this embodiment is also suitable for the ink cartridge 3 provided with the first stopper 40 in FIG. 3A, but the detailed description thereof is 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 pen body 5. As a result, the protrusion 22 and the closed connection portion 23 of the intermediate member 20 are inserted into the opening of the ink cartridge 3. The small protrusion 22A, the first and second minute protrusions 22B, 22C are inserted into the hole 71 a of the first plug 70. At this time, the segment (see FIG. 11B) formed between the protrusion 22 and the small protrusion 22A abuts on the front end of the first plug 70. At the same time, a pair of convex portions 22a of the small protrusion 22A is fitted in any part of the annular concave portion 71b of the first plug 70. On the other hand, the closed connection portion 23 is inserted into the opening 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 protrusions 22B and 22C inserted into the hole 71 a of the first plug 70 do not come into contact with the plug body 71. that is, When the ink cartridge 3 with the ink leakage prevention mechanism is used in the writing instrument main body 5, the first and second minute protrusions 22B and 22C are only present in the hole 71a of the first plug 70, and will not cause any problem to the ink cartridge 3 influences. As a result, the operations of attaching and detaching the writing instrument body 5 and the ink cartridge 3 are completely the same as those in FIGS. 4A to 4F and FIGS. 5A to 5F.

〈適合不具墨水防漏機構的墨水匣〉 <Suitable for ink cartridges without an ink leak proof 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 body 5 of this embodiment is suitable for the ink cartridge 3 without the ink leakage prevention mechanism shown in FIG. 12, and can surely open the disc-shaped plug 80 provided with the cylindrical protrusion 81 in the center.

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 body 5. Thereby, the front end surface 22c of the long first minute protrusion 22B presses the portion of the disc-shaped plug 80 that deviates from the center. In addition, the cylindrical protrusion 81 of the plug 80 is received in the gap 22D between the first and second minute protrusions 22B and 22C. At this time, the front end surface 22e of the short second minute protrusion 22C does not come into contact with the plug 80. On the other hand, the closed 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 further inserted toward the rear end opening of the front shaft 11A of the writing instrument body 5. In this way, the disc-shaped plug 80 pressed by the front end surface 22c of the long first minute protrusion 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 front end surface 22c of the long first minute protrusion 22B, and is supported by the front end surface 22e of the short second minute protrusion 22C. As a result, the plug 80 becomes unsteady in posture and becomes unstable. On the other hand, the sealed connection portion 23 faces the ink cartridge 3 The opening 31 is more 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 pen body 5. During the process until the ink cartridge 3 is completely inserted, the plug 80 in an unsteady posture and in an unstable state rotates about its axis in the radial direction. The rotation direction of the plug 80 is limited to two directions in which the cylindrical protrusion 81 in the gap 22D can rotate. As a result, the plug 80 will surely rotate along the inclination of any one of the two side surfaces 22d, 22d of the first minute protrusion 22B. The rotation of the plug 80 is supported by the inclined side surface 22f of the second minute protrusion 22C and becomes a more reliable operation. As shown in FIG. 12D, the first minute protrusion 22B, the second minute protrusion 22C, and the gap 22D of this 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 31 of the ink cartridge 3 and hermetically fits on the inner peripheral surface of the opening 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 for both the ink cartridge 3 (FIG. 11) which is suitable for the ink leakage prevention mechanism and the ink cartridge 3 (FIG. 12) which is not suitable for the ink leakage prevention mechanism. That is, the writing instrument body 5 of the present embodiment can smoothly open both the first plugs 40 and 70 of the ink cartridge 3 provided with the ink leakage prevention mechanism and the plug 80 of the ink cartridge 3 without the ink leakage prevention mechanism. Therefore, even if both old and new ink cartridges 3 circulate on the market immediately after replacing the old product with a new product, the ink cartridges 3 of the new and old can still be used in the pen 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, the writing instrument body 5 of this embodiment can precisely control the operation of the disc-shaped plug 80 by the first minute protrusion 22B, the second minute protrusion 22C, and the gap 22D. Thereby, the writing instrument body 5 of this embodiment can surely open the disc-shaped plug 80. In addition, as compared with the protrusion 62 shown in FIG. 6C, the first minute protrusion 22B, the second minute protrusion 22C, and the gap 22D of this embodiment can be provided in an extremely small space.

〈筆具主體的第3實施形態〉 <Third embodiment of writing instrument 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 of 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 body 6 of this embodiment is characterized in that only the first minute protrusion 22B is provided at the tip of the small protrusion 22A of the intermediate member 20. The first minute protrusion 22B is offset from the center of the small protrusion 22A and located on one side. The length of the first minute protrusion 22B is set to 2.7 mm, for example. The disc-shaped plug 80 provided with the cylindrical protrusion 81 in the center can be opened only by the first minute protrusion 22B. The first minute protrusion 22B of this embodiment can rotate the plug 80 at an inclination of about 50°.

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。 In addition, the intermediate member 20 of this embodiment also has the same small protrusion 22A and convex portion as the intermediate member 20 of FIGS. 3C and 8A. Therefore, similar to the pen body 2 and 5 of the first and second embodiments, the pen body 6 of this embodiment is also suitable for the ink cartridge 3 provided with the ink leakage prevention mechanism shown in FIGS. 2A and 7, The first plugs 40 and 70 can be operated in exactly the same manner as in FIGS. 4A to 4F and FIGS. 5A to 5F.

1‧‧‧筆具 1‧‧‧pen

2‧‧‧筆具主體 2‧‧‧ Pen main body

3‧‧‧墨水匣 3‧‧‧Ink cartridge

11‧‧‧軸筒 11‧‧‧Shaft

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 absorber

14‧‧‧蓋子 14‧‧‧ lid

20‧‧‧中間構件 20‧‧‧Intermediate component

21‧‧‧管 21‧‧‧ tube

21a‧‧‧貫通孔 21a‧‧‧Through hole

22‧‧‧突起部 22‧‧‧Protrusion

22A‧‧‧小突起(公型嵌合部) 22A‧‧‧Small protrusion (male fitting part)

23‧‧‧密閉連接部 23‧‧‧Closed connection

30‧‧‧容器 30‧‧‧Container

31‧‧‧開口部 31‧‧‧Opening

32‧‧‧肋部 32‧‧‧rib

40‧‧‧第1栓 40‧‧‧ first plug

50‧‧‧第2栓 50‧‧‧The second 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 includes a cylindrical container accommodating ink, and a plug that seals an opening of the container, and the plug is opened by a protrusion provided in a writing instrument body, wherein: the plug includes a first plug And a second plug, the first plug has a plug body fitted into the protruding portion, the second plug has an outer peripheral portion fitted into the inner peripheral surface of the opening, and the plug body into which the first plug fits Of the ink through hole, the fit between the plug 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 is configured to be borrowed It is detached from the inner peripheral surface of the opening by the 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 item 1 of the patent application range, wherein the fitting force between the outer peripheral portion of the second plug and the inner peripheral surface of the opening is greater than the passage of the plug body of the first plug and the second 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 item 1 or 2 of the patent application range, 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或2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 claim 1 or 2, wherein the first plug has a flange portion protruding from the plug body toward the inner peripheral surface of the opening and configured to allow the ink to pass through. 如申請專利範圍第1或2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。 The ink cartridge according to item 1 or 2 of the patent application scope, in which A step portion is provided inside the container, and the step portion is configured to restrict the movement of the first plug toward the rear by abutting the first plug detached from the second plug. 如申請專利範圍第1或2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 item 1 or 2 of the patent application range, wherein the plug body is provided with a female fitting portion or a male fitting portion, and the female fitting portion or the male fitting portion is configured as It can 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 Item 6 of the patent application range, wherein the female fitting portion is provided inside the plug body, and the female fitting portion includes a hole formed only before 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或2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 item 1 or 2 of the patent application, 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 item 8 of the patent application range, wherein the opening of the container has an inner diameter in the 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 an 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 a protrusion is provided on the writing instrument body The protruding portion protrudes rearward from the writing instrument body, and is configured to open either 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。 The writing implement according to item 10 of the patent application scope, wherein the protruding portion is disposed at the center of the writing implement body and has The width of the second plug through the short-side direction of the through hole, and is configured to fit the plug body of the first plug; the fitting force between the protrusion and the plug body is greater than the outer periphery of the second plug The fitting force with the inner peripheral surface of the opening is small. 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 item 11 of the patent application range, wherein the protrusion 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 fitted Close to 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 item 12 of the patent application scope, wherein a female-shaped fitting portion is provided on the inner side of the plug body, and the female-shaped fitting portion includes a hole formed only in front of the plug body, and a device The annular concave portion on the inner peripheral surface of the hole is provided with the male fitting portion at the front end of the protruding portion, and the male fitting portion has a plurality of convex surfaces that can be fitted into any part of the annular concave portion. 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 implement according to any one of items 11 to 13 of the patent application range, wherein the protruding portion has a width in the short-side direction substantially equal to the diameter of the passage hole of the second plug, and is inserted through the passage In the case of a hole, the through hole is divided into two. 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 item 14 of the patent application range, wherein the protrusion is provided at the center of the partition wall that divides the inside of the writing instrument body, and the partition wall is provided so as to sandwich the protrusion At least two through holes, and the side surface of the protruding portion is provided with corresponding to the through hole At least two flow paths, and the aforementioned flow path is formed by a groove portion extending in the front-rear direction. 如申請專利範圍第11至13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 implement according to any one of items 11 to 13 of the patent application scope, wherein the writing implement body is provided with a sealed connection portion, the closed connection portion is composed of a cylindrical wall portion surrounding the protrusion, and has The outer peripheral surface of the inner peripheral surface of the opening can be tightly 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 item 10 of the patent application scope, wherein the writing instrument body is provided with a sealed connection portion having an outer peripheral surface that can be tightly fitted into the inner circumferential surface of the opening portion, and the sealed portion The connecting portion is provided with the protruding portion that 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或13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 item 12 or 13 of the patent application scope, wherein a female fitting portion is provided on the inner side of the plug body, and the female fitting portion includes a hole formed only before the plug body, And an annular recessed portion provided on the inner peripheral surface of the hole, the male fitting portion is provided at the front end of the protruding portion, and the male fitting portion has a plurality of pieces that can be fitted into any part of the annular recessed portion The convex surface is provided with a first minute protrusion at the front end of the male fitting portion, the aforementioned The first microprotrusion is offset from the center of the male-shaped fitting portion and located on one side and protrudes from the male-shaped fitting portion toward the rear, and is provided when the male-shaped fitting portion is fitted in the female-shaped fitting portion. The length that will be in contact with the aforementioned plug body. 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 item 18 of the patent application range, wherein a second microprotrusion is provided at the front end of the male fitting portion, and the second microprotrusion is offset from the center of the male fitting portion and located at another Side and protruding toward the rear from the male fitting portion, and having a shorter length than the first minute protrusion and forming a gap between the first minute protrusion and the first minute protrusion. 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。 The writing instrument according to item 19 of the patent application range, wherein the position of the gap between the first microprotrusion and the second microprotrusion is deviated from the center of the male fitting portion to the other side. 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 item 19 of the patent application range, wherein the front end surface of the first minute protrusion has a smaller area than the horizontal cross-sectional area of the first minute protrusion in the vertical state. 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 item 21 of the patent application range, wherein two opposing side surfaces of the first minute protrusion are inclined from the front end side of the first minute protrusion toward the male fitting portion. 如申請專利範圍第21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 front end surface of the second minute protrusion has an area smaller than the horizontal cross-sectional area of the second minute protrusion in the vertical state. 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。 The writing instrument according to item 23 of the patent application range, wherein two opposing side surfaces of the second microprotrusion are inclined from the front 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 suitable for the aforementioned writing instrument main body according to any one of claims 19 to 24. The ink cartridge includes a cylindrical container that contains ink, and a circular plate that seals the opening of the container In the shape of a plug, a cylindrical protrusion is provided in the center of the plug, the length of the cylindrical protrusion is shorter than the depth of the gap between the first minute protrusion and the second minute protrusion, and the diameter of the cylindrical protrusion is smaller than that of 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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WO2017094614A1 (en) 2017-06-08
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