JP2006110919A - Ink supplement jig - Google Patents

Ink supplement jig Download PDF

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Publication number
JP2006110919A
JP2006110919A JP2004302355A JP2004302355A JP2006110919A JP 2006110919 A JP2006110919 A JP 2006110919A JP 2004302355 A JP2004302355 A JP 2004302355A JP 2004302355 A JP2004302355 A JP 2004302355A JP 2006110919 A JP2006110919 A JP 2006110919A
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Prior art keywords
ink
piston
air
cylinder
air cylinder
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JP2004302355A
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Japanese (ja)
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Kichiro Kitamura
吉櫓 北村
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Kitamura Manufacturing Co Ltd
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Kitamura Manufacturing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an ink supplement jig which supplements ink from an ink container into an ink cartridge where the ink is used up based on a difference in pressure between the inside and outside caused by an internal reduced pressure, and which eliminates the risk of ink leakage from the ink container. <P>SOLUTION: The tip end part of the air cylinder 17 of a pressure reducer 16 having a piston 21 movably inserted therein is connected to the air flow port 14 of the upper end part of an ink tank 11 having a nozzle tube 12 at the lower end part via a flexible tube 15. A screw rod 22 with a handle 23 fitted with the piston 21 at the tip end is screw engaged with the center screw hole 19 provided with the end cover 18 which tightly seals the rear end part of the air cylinder 17, enabling the screw sending operation of the piston 21 in the longitudinal direction. An atmospheric opening 20 is formed in the cylinder wall part near the end cover 18 of the air cylinder 17. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、インクを使い切ったインクカートリッジ内に、インクカートリッジ内の減圧（空気吸引）によるインクーカートリッジ内外の圧力差に基づいてインクを補給（補充）するインク補給具に関する。   The present invention relates to an ink replenishing tool that replenishes (replenishes) ink into an ink cartridge that has used up ink based on a pressure difference inside and outside the ink cartridge due to pressure reduction (air suction) inside the ink cartridge.

この種のインク補給具としては、先端にノズル管を取り付けるとともに後端を開口したインク収容筒内に、前後にのびる操作ロッド（ピストンロッド）を取り付けたピストンを、前後に移動可能に挿着したピストン・シリンダ型のものが知られている（例えば特許文献１参照）。
As this type of ink replenishing tool, a piston tube having a front and rear operation rod (piston rod) attached to a nozzle tube attached to the front end and an open rear end is inserted movably back and forth. A piston / cylinder type is known (for example, see Patent Document 1).

この公知のインク補給具は、インク収容筒のノズル管を、インクカートリッジのインク注入口（穴）部に嵌着して、インクカートリッジ上にインク収容筒が上下にのびるようにセットした状態で、ピストンを操作ロッドを介してインク収容筒内を上方に移動して後退させることによって、インクカートリッジ内の空気をインク収容筒内のインクを通してその上方側、すなわち後方（背部）側の空間に吸引し、これにより得られるインクカートリッジ内とインク収容筒のインクの後方側の空間の圧力差に基づいて、インク収容筒内のインクをノズル管を通してインクカートリッジ内に注入、補給するものである。   In this known ink supply device, the nozzle tube of the ink storage cylinder is fitted into the ink inlet (hole) of the ink cartridge, and the ink storage cylinder is set on the ink cartridge so as to extend vertically. By moving the piston upward through the operation rod and retreating the piston, the air in the ink cartridge is sucked through the ink in the ink storage cylinder into the space above, that is, the rear (back) side. Based on the pressure difference between the ink cartridge thus obtained and the space behind the ink in the ink storage cylinder, the ink in the ink storage cylinder is injected and replenished into the ink cartridge through the nozzle tube.

この公知のインク補給具によれば、インクの補給自体は容易に行うことができるが、インクカートリッジ内の減圧のための操作ロッドを介したピストンの後退操作は、インク収容筒を移動しないように保持しながら、インク収容筒の内面に対する摩擦抵抗と減圧抵抗に抗して行うことから、力を入れ過ぎて、操作ロッド、従ってピストンを急激に後退させる形になり易い。この結果インク収容筒内のインクを揺動させる衝撃力が作用したり、ピストンがインク収容筒の後端から離脱したり、またこの反動でノズル管のインクカートリッジのインク注入口部に対する嵌着が外れたりするため、インクがインク収容筒の後端やノズル管の先端から外部に漏出するという問題がある。
特開平１１−２０７９８９号公報 According to this known ink replenishing tool, ink replenishment itself can be easily performed, but the retreating operation of the piston via the operation rod for depressurization in the ink cartridge does not move the ink containing cylinder. Since the operation is performed against the frictional resistance and the pressure reduction resistance against the inner surface of the ink containing cylinder while being held, it is likely that the force is excessively applied and the operating rod, and hence the piston, is rapidly retracted. As a result, an impact force that oscillates the ink in the ink storage cylinder acts, the piston disengages from the rear end of the ink storage cylinder, and this reaction causes the nozzle tube to be fitted to the ink inlet of the ink cartridge. Therefore, there is a problem that ink leaks to the outside from the rear end of the ink storage cylinder or the tip of the nozzle tube.
JP 11-207989 A

この発明は、公知のインク補給具に認められる上記のような問題に鑑み、インクカートリッジ内の減圧を、インクを外部に漏出させる恐れのない安定したピストンの後退操作で行うことができるインク補給具を提供することを課題としている。   The present invention has been made in view of the above-described problems found in known ink replenishing tools, and is capable of reducing the pressure in the ink cartridge by a stable piston retraction operation that does not cause the ink to leak outside. It is an issue to provide.

この発明によれば、上記の課題は、特許請求の範囲の請求項１に記載のように、基本的には、先端にノズル管を取り付けるとともに後端に空気流通口を有する密閉型インクタンク（インク容器）と、先端をインクタンクの空気流通口に接続するとともに後端部に中心ねじ穴を有しかつ後端部近傍の筒壁部に大気開放口（穴）を有する密閉型空気筒及び空気筒に大気開放口部を通って前後に移動可能に挿着した、中心ねじ穴にねじ係合するねじロッド付きのピストンを備えたピストン・シリンダ型の減圧器とからなるインク補給具によって解決する。   According to the present invention, as described in claim 1 of the present invention, basically, a sealed ink tank having a nozzle pipe attached to the front end and an air circulation port at the rear end is provided. An ink container), a sealed air cylinder having a front end connected to the air circulation port of the ink tank, a central screw hole at the rear end, and an air opening (hole) in the cylinder wall near the rear end; Solved by an ink replenisher consisting of a piston / cylinder type pressure reducer equipped with a piston with a screw rod threadedly engaged with a central screw hole, which is inserted into an empty cylinder through the atmosphere opening port so as to move back and forth. To do.

この発明に係るインク補給具は、インクカートリッジ上において、インクタンクのノズル管を直接又は適宜のインク注入アダプターを介してインクカートリッジのインク注入口部に嵌着して、インクタンクをインクカートリッジ上にセットした状態で、減圧器のねじロッドを空気筒の中心ねじ穴に対して後退方向にねじ送り回転することにより、ピストンを空気筒内を後退させながら、インクカートリッジ内の空気をインクタンクのインク中を通して、空気筒内のピストンの前方側の空間部に吸引して、インクカートリッジ内を減圧した後、ピストンが空気筒の大気開放口を通過した後退の最終段階において、大気開放口を通してピストンの前方側の空間に流入する大気により、インクタンクのインクの背部側の空間部を大気圧の状態にして、インクに大気圧を作用させるという形で、減圧下のインクカートリッジ内にインクの補給を行う。   An ink replenishing tool according to the present invention has an ink tank mounted on an ink cartridge by fitting the nozzle tube of the ink tank directly or through an appropriate ink injection adapter to the ink injection port on the ink cartridge. In the set state, the screw rod of the decompressor is screwed and rotated in the backward direction with respect to the central screw hole of the air cylinder, so that the air in the ink cartridge is removed from the ink tank while the piston is retracted in the air cylinder. After sucking into the space in front of the piston in the air cylinder and reducing the pressure inside the ink cartridge, in the final stage of retreat where the piston has passed through the atmosphere opening of the air cylinder, With the air flowing into the space on the front side, the space on the ink back side of the ink tank is brought to atmospheric pressure. In the form of the action of atmospheric pressure to the ink, and performs supply of ink under a reduced pressure of the ink cartridge.

この発明のインク補給具においては、特許請求の範囲の請求項２に記載のごとく、減圧器の空気筒の先端を、インクタンクの空気流通口に、可撓チューブを介して接続することが望ましい。   In the ink supply device of the present invention, as described in claim 2 of the claims, it is desirable to connect the tip of the air cylinder of the decompressor to the air circulation port of the ink tank via a flexible tube. .

またこの発明のインク補給具では、特許請求の範囲の請求項３に記載のように、ピストンをねじロッドに軸受を介して相対的に回転可能に取り付けることが望ましい。   In the ink supply device of the present invention, it is desirable that the piston is attached to the screw rod so as to be relatively rotatable via a bearing, as described in claim 3 of the claims.

特許請求の範囲の請求項１に記載の基本構成によれば、インクカートリッジ内の減圧を、減圧器の空気筒を保持した状態において、減圧器のねじロッドの空気筒の中心ねじ穴に対するねじ送り操作を介して行うので、ねじロッド、従ってピストンを安定した速さで後退させることができ、インクが外部に漏出する恐れはない。   According to the basic configuration of claim 1, the pressure reduction in the ink cartridge is performed by screw feed to the central screw hole of the air cylinder of the screw rod of the pressure reducer in a state where the air cylinder of the pressure reducer is held. Since the operation is performed through the operation, the screw rod, and hence the piston, can be retracted at a stable speed, and there is no fear that the ink leaks outside.

また特許請求の範囲の請求項２に記載の可撓チューブを介したインクタンクと減圧器の空気筒の接続構成によれば、減圧器を操作に適した任意の状態（水平、垂直又は傾斜状態）に保持することができる。   Further, according to the connection configuration of the ink tank and the air cylinder of the decompressor via the flexible tube according to claim 2, any state suitable for operation of the decompressor (horizontal, vertical or inclined state) ) Can be held.

さらに特許請求の範囲の請求項３に記載のピストン、ねじロッド間における軸受介設構成によれば、減圧操作のためにねじロッドを軸周りに回転させた際に、ピストンは軸周りに連動回転せずに、前後方向に移動するので、ピストンの前後方向の移動をよりスムースに行うことができる。   Further, according to the bearing interposed configuration between the piston and the threaded rod according to claim 3, when the threaded rod is rotated around the axis for the pressure reducing operation, the piston rotates together around the axis. Therefore, the movement of the piston in the front-rear direction can be performed more smoothly.

以下図面に基づいて、この発明に係るインク補給具の好適な実施形態について説明する。   Hereinafter, preferred embodiments of an ink supply tool according to the present invention will be described with reference to the drawings.

図示の形態では、インクタンク１１は、円筒状の密閉型容器で、先端部と後端部のそれぞれに相当する下端部と上端部のそれぞれに、ノズル管１２と空気流通口（穴）１４付きのエンドカバー１３を備えている。これらのノズル管１２と空気流通口１４は、インクタンク１０の不使用時にはキャップ図示せず）によって閉鎖可能である。   In the illustrated embodiment, the ink tank 11 is a cylindrical sealed container, and has a nozzle tube 12 and an air circulation port (hole) 14 at each of a lower end portion and an upper end portion corresponding to a front end portion and a rear end portion, respectively. The end cover 13 is provided. The nozzle tube 12 and the air circulation port 14 can be closed by a cap (not shown) when the ink tank 10 is not used.

減圧器１６を構成する空気筒１７も、円筒状の密閉型容器で、先端部が、インクタンク１１の空気流通口１４に脱着自在に接続した可撓チューブ１５を介して接続してあるとともに、後端部が、先端部にピストン２１を取り付けたねじロッド２２のねじ係合する中心ねじ穴１９付きのエンドカバー１８で密閉してあり、かつエンドカバー１８近傍の筒壁部には大気開放口２０が設けてある。またピストン２１とねじロッド２２の先端部の間には、軸受２３が介在させてあるとともに、ねじロッド２２の空気筒１７の後方に突出する後端部には、十字形のハンドル２４が取り付けてある。   The air cylinder 17 constituting the decompressor 16 is also a cylindrical hermetic container, and the tip is connected via a flexible tube 15 detachably connected to the air circulation port 14 of the ink tank 11. The rear end portion is sealed with an end cover 18 having a central screw hole 19 that engages with a screw rod 22 having a piston 21 attached to the front end portion, and the cylinder wall near the end cover 18 has an air release port. 20 is provided. A bearing 23 is interposed between the piston 21 and the tip of the screw rod 22, and a cross-shaped handle 24 is attached to the rear end of the screw rod 22 that protrudes rearward of the air cylinder 17. is there.

図示の形態によるインクカートリッジに対するインクの補給は、カートリッジホルダ（図示せず）に保持したインクカートリッジ２５上において、インクタンク１１のノズル管１２を、インク注入アダプター２７を介して、インクカートリッジ２５のインク注入口２６に嵌着して、インクカートリッジ２５上に移動不能にセットした後、減圧器１６のピストン２１に連なるねじロッド２２を、ハンドル２４による空気筒１７のエンドカバー１８の中心ねじ穴１９に対するねじ送り回転によって後退させることにより、ピストン２１をその終点まで後退させるという形で行う。   Ink supply to the ink cartridge according to the form shown in the drawing is performed on the ink cartridge 25 held by a cartridge holder (not shown) through the nozzle tube 12 of the ink tank 11 via the ink injection adapter 27. The screw rod 22 connected to the piston 21 of the decompressor 16 is inserted into the inlet 26 and immovable on the ink cartridge 25, and then the handle 24 is attached to the central screw hole 19 of the end cover 18 of the air cylinder 17. By retreating by screw feed rotation, the piston 21 is retreated to its end point.

これによりインクカートリッジ２５内の減圧が行われた後、大気開放口２０を通して空気筒１７のピストン２１の前側の空間に流入する大気により、インクタンク１１内のインクの背部側に大気圧が作用して、インクがインクカートリッジ２５内に補給される。   As a result, after the pressure in the ink cartridge 25 is reduced, atmospheric pressure flows into the space on the front side of the piston 21 of the air cylinder 17 through the atmosphere opening 20, and atmospheric pressure acts on the back side of the ink in the ink tank 11. Thus, ink is supplied into the ink cartridge 25.

この発明に係るインク補給具は、このほか種々の形態で実施することができるもので、上記の形態に限定されるものでない。   The ink supply device according to the present invention can be implemented in various other forms, and is not limited to the above-described form.

この発明に係るインク補給具の好適な実施形態の構成概要図である。1 is a schematic configuration diagram of a preferred embodiment of an ink supply tool according to the present invention.

符号の説明Explanation of symbols

１１ インクタンク
１２ ノズル管
１３ エンドカバー
１４ 空気流通口
１５ 可撓チューブ
１６ 減圧器
１７ 空気筒
１８ エンドカバー
１９ 中心ねじ穴
２０ 大気開放口
２１ ピストン
２２ ねじロッド
２３ 軸受
２４ ハンドル
２５ インクカートリッジ
２６ インク注入口
２７ インク注入アダプター DESCRIPTION OF SYMBOLS 11 Ink tank 12 Nozzle pipe 13 End cover 14 Air distribution port 15 Flexible tube 16 Decompressor 17 Empty cylinder 18 End cover 19 Center screw hole 20 Atmospheric release port 21 Piston 22 Screw rod 23 Bearing 24 Handle 25 Ink cartridge 26 Ink inlet 27 Ink adapter

Claims (3)

先端にノズル管を取り付けるとともに後端に空気流通口を有する密閉型インクタンクと、先端をインクタンクの空気流通口に接続するとともに後端部に中心ねじ穴を有しかつ後端部近傍の筒壁部に大気開放口を有する密閉型空気筒及び空気筒に大気開放口部を通って前後に移動可能に挿着した、中心ねじ穴にねじ係合するねじロッド付きのピストンを備えたピストン・シリンダ型の減圧器とからなるインク補給具。   A sealed ink tank having a nozzle tube attached to the front end and an air circulation port at the rear end, and a cylinder connected to the air circulation port of the ink tank and having a central screw hole at the rear end and in the vicinity of the rear end A piston with a sealed air cylinder having an air release port on the wall and a piston with a screw rod that is screwed into the center screw hole and is inserted in the air cylinder so as to move back and forth through the air release port. An ink replenisher comprising a cylinder type pressure reducer. 減圧器の空気筒の先端を、インクタンクの空気流通口に、可撓チューブを介して接続してなる、請求項１記載のインク補給具。   The ink replenishing tool according to claim 1, wherein the tip of the air cylinder of the decompressor is connected to the air circulation port of the ink tank via a flexible tube. ピストンをねじロッドに軸受を介して相対的に回転可能に取り付けてなる、請求項１または２記載のインク補給具。   The ink supply device according to claim 1, wherein the piston is attached to the screw rod so as to be relatively rotatable via a bearing.
JP2004302355A 2004-10-18 2004-10-18 Ink supplement jig Pending JP2006110919A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021006867A1 (en) * 2019-07-08 2021-01-14 Hewlett-Packard Development Company, L.P. Device to supply printing material
CN114789608A (en) * 2022-04-29 2022-07-26 深圳市华星光电半导体显示技术有限公司 Ink jet printing system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62501342A (en) * 1985-01-04 1987-06-04 カナボ−ゲル，レオン Liquid pouring device and drip prevention valve cartridge used in it
JPH07204212A (en) * 1993-09-23 1995-08-08 Heraeus Kulzer Gmbh Injector to administer fixed quantity of viscous engineering material, especially dental engineering material
JPH08310002A (en) * 1995-05-17 1996-11-26 Brother Ind Ltd Ink feeding device
JPH11320903A (en) * 1998-05-15 1999-11-24 General Co Ltd Ink replenishing tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62501342A (en) * 1985-01-04 1987-06-04 カナボ−ゲル，レオン Liquid pouring device and drip prevention valve cartridge used in it
JPH07204212A (en) * 1993-09-23 1995-08-08 Heraeus Kulzer Gmbh Injector to administer fixed quantity of viscous engineering material, especially dental engineering material
JPH08310002A (en) * 1995-05-17 1996-11-26 Brother Ind Ltd Ink feeding device
JPH11320903A (en) * 1998-05-15 1999-11-24 General Co Ltd Ink replenishing tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021006867A1 (en) * 2019-07-08 2021-01-14 Hewlett-Packard Development Company, L.P. Device to supply printing material
CN113329882A (en) * 2019-07-08 2021-08-31 惠普发展公司有限责任合伙企业 Device for supplying printing material
CN113329882B (en) * 2019-07-08 2023-01-06 惠普发展公司有限责任合伙企业 Device for supplying printing material
US11718098B2 (en) 2019-07-08 2023-08-08 Hewlett-Packard Development Company L.P. Device to supply printing material
CN114789608A (en) * 2022-04-29 2022-07-26 深圳市华星光电半导体显示技术有限公司 Ink jet printing system
CN114789608B (en) * 2022-04-29 2023-11-28 深圳市华星光电半导体显示技术有限公司 Ink jet printing system

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