JP2004188632A - Liquid storage vessel and the like - Google Patents

Liquid storage vessel and the like Download PDF

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Publication number
JP2004188632A
JP2004188632A JP2002356245A JP2002356245A JP2004188632A JP 2004188632 A JP2004188632 A JP 2004188632A JP 2002356245 A JP2002356245 A JP 2002356245A JP 2002356245 A JP2002356245 A JP 2002356245A JP 2004188632 A JP2004188632 A JP 2004188632A
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Japan
Prior art keywords
elastic member
liquid
liquid storage
storage container
needle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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JP2002356245A
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Japanese (ja)
Inventor
Hiromasa Yasuma
弘雅 安間
Kenji Kitahata
健二 北畠
Nobuyuki Hatasa
延幸 畑佐
亘 ▲高▼橋
Wataru Takahashi
Yasuo Kotaki
小瀧  靖夫
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Canon Inc
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Canon Inc
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Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2002356245A priority Critical patent/JP2004188632A/en
Publication of JP2004188632A publication Critical patent/JP2004188632A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid storage vessel which makes the inside and outside of the vessel communicate with each other by inserting a needle-shaped tube and can realize sure connection with no liquid leakage to a connecting needle, and a recording apparatus using the liquid storage vessel. <P>SOLUTION: This liquid storage vessel, which makes the inside and outside thereof communicate with each other by inserting the needle-shaped tube into an elastic member, comprises a connecting port for connecting the inside and outside of the vessel, the elastic member for closing the connecting port, and a housing for housing the elastic member; the elastic member has incisions in the direction of the entry of the needle-like tube; and the incisions are arranged almost in parallel with one another. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、交換型の液体収納容器及び前記液体収納容器を用いたインクジェット記録装置に関する。
【0002】
【従来の技術】
従来の交換型液体収納容器の一例として、図7および図8に示す形態のインクジェット記録装置用インクタンクが知られている。図7は、そのインクタンクの詳細を説明するため、その側面を断面で示した図である。図8は、図7で示したインクタンク内外を連通させる接続部の栓を説明する断面図である。
【0003】
図7および図8に示すように、インクタンク100は、インク貯蔵室101と廃インク貯蔵室102とからなる。インク貯蔵室101の端部にはインク供給針(不図示)を貫通させるためのゴム栓104が2ヶ所に設けられ、同様に廃インク貯蔵室102の端部にもゴム栓104が1ヶ所に設けられる。これらのゴム栓104は、接続部の一部を構成するもので、インク供給針が貫通するインク連通部103を除き、インクタンクのハウジング部105とインク吸収体106およびゴム栓押さえ107とによって挟まれている。この構造により、インクタンクをインクジェット記録装置から取り外すとき、これに伴ってインクタンクから抜けるインク供給針に付着するインクをインク吸収体106によって除去することができ、インク供給針に付着したインクがインクジェット記録装置内部を汚染したり、インク供給針自身に目詰まりを生じたりすることを未然に防ぐことができる。
【0004】
廃インク貯蔵室102は、一端部で連通する2層の貯留部からなり、上記インク供給針が貫通する部位は下層の貯留部に対応して設けられる。すなわち、廃インク貯蔵室102には、インクジェット記録装置のインク供給路に接続されたインク供給針が貫通し、これにより吐出回復処理等で排出された廃インクが、廃インク貯蔵部102の下層部内に流入することができる。廃インク貯蔵部102の略全体には吸収体108が充填されており、下層部に流入した廃インクは下層部の吸収体108によって吸収される。廃インクの流入に従って、吸収体108のうち廃インクを保持する領域は除々に上層部の吸収体108にまで広がり、これと共に廃インクの一部は吸収体外へ滲み出す。一方、上層部の廃インク吸収体108の端部に隣接して隔壁102Aが設けられており、これにより、廃インク量が吸収体の保持能力を超えないうちは上述の滲み出したインクは隔壁102Aによって、その右側の吸収体の無い部分へ移動できない状態とされる。累積的に流入した廃インク量が吸収体の保持能力を越えて始めて、滲み出した廃インクは隔壁102Aから溢れて右側の部屋に移り、その液位を高くして行き、所定の廃液検知電極(不図示)に触れるに至る。この結果、廃インク貯蔵室102が廃インクで満たされたことを検知でき、インクタンク100の交換等を促すことが可能となる。また廃インク貯蔵室102の後ろ端部上方には大気連通口109が設けられており、この大気連通口109を介して廃インク貯蔵部102の内部とインクタンク外部とが連通できる。
【0005】
図8で示すようにゴム栓104の外径はハウジング部105の内径より単体状態では大きく作られており、所定装置を使用してゴム栓104の径方向(図8中、矢印A方向)に沿って圧縮されてから、矢印B方向に沿ってハウジング部105の中に組みつけられている。
【0006】
【発明が解決しようとする課題】
しかしながら、従来の液体収納容器およびインクジェット記録装置では、液体収納容器を記録装置本体へ装着する際、図9に示すように記録装置本体のインク供給針127が液体収納容器130のインク連通部129に挿入され、インク連通部の栓である弾性体128に対してインク供給針127を挿入した体積分が針挿入方向及び弾性体径方向に押しやられる(図9(a))。その後、インク供給針127を弾性体128から抜くと、弾性体128が針挿入方向へ陥没するとともに、弾性体128の、針挿入開始部と反対側の部分がめくれてしまう(図9(b))。この事により、液体収納容器を記録装置本体に装着した際に、インク供給針127と弾性体128とが接してインクを遮断できる面積が少なくなり、インク供給口131よりインクが垂れ、記録装置本体や容器周辺物をインクで汚染するおそれがある。
【0007】
また、図10は、液体収納容器のインク連通部のゴム栓を記録装置本体のインク供給針に複数回挿入したときに、ゴム栓に生じた裂け目の状態を示した平面図である。
【0008】
従来の液体収納容器およびインクジェット記録装置では、液体収納容器を記録装置本体へ装着する際、記録装置本体のインク供給針自身がインクタンク供給口に設けられているゴム栓の弾性体128を切り裂いて侵入する。記録装置の使用者が何らかの理由で、複数回にわたって液体収納容器の脱着を繰り返した場合、図10に示す裂け目128a〜128cのように、インク供給針127と弾性体128との位置関係により、挿入毎にランダムに弾性体128を切り裂き、弾性体128に損傷を与える。その結果、切り裂き同士がつながった場合、弾性体128を構成するゴム肉が切断され所定の圧力で弾性体128を圧縮できなかったり、最悪の場合ゴム肉が脱落して穴が空きインクの流出が止まらなくなる。
【0009】
そこで本発明は、針状筒を挿通することで容器内外が連通する液体収納容器において、接続針に対して液漏れの無い確実な接続を実現できる液体収納容器およびこれを用いた記録装置を提供することを目的とする。
【0010】
【課題を解決するための手段】
上記目的を達成するために本発明の一つの態様は、容器内外を接続する接続口と、前記接続口を塞ぐ弾性部材と、前記弾性部材を収納するハウジングとを有し、前記弾性部材に針状筒を挿通することで容器内外が連通する液体収納容器において、前記弾性部材が、前記針状筒の進入する方向に切れ込みを有し、且つ前記切れ込みは略平行に複数配置されていることを特徴とする。
【0011】
上記液体収納容器は、前記弾性部材を押圧し固定する固定部材を有し、前記固定部材の押圧により、前記ハウジング内の弾性部材が前記弾性部材の中心方向へ圧縮されていることが好ましい。
【0012】
さらに、前記接続口が複数あり、隣接する2つの前記弾性部材において、前記切れ込みが前記弾性部材の中心を結ぶ直線に対し略平行に配置されていることが好ましい。
【0013】
さらに、前記弾性部材の形状がドーム形状であることが好ましい。
【0014】
さらに、前記ハウジングの内径と前記弾性部材の外径とは略同一寸法であり、前記弾性部材のドーム形状に突き出た曲面を前記固定部材により押圧することで、前記ハウジング内で前記弾性部材が前記弾性部材の中心方向へ圧縮されていることが好ましい。
【0015】
さらに、前記切れ込みが前記弾性部材を貫通していないことが好ましい。
【0016】
さらに、前記切れ込みの、前記針状筒の進入方向と直交する方向に関する長さLが、前記針状筒の直径Rにたいして、2L>Rの関係にあることが好ましい。
【0017】
さらに、前記切れ込みは、前記弾性部材が前記固定部材により固定された後に設けられることが好ましい。また、前記切れ込みは、前記弾性部材の成形時に設けられてもよい。
【0018】
また、本発明の更に別の態様は、上記のような液体収納容器を用いた記録装置であって、記録装置本体には前記液体収納容器が着脱可能に装着される被装着手段が設けられ、針状筒が前記被装着手段に備えられていて、容器装着時に前記液体収納容器の接続口の弾性部材を貫通する記録装置である。
【0019】
この記録装置では、前記液体収納容器内の液体が供給され、記録媒体に対して液滴を吐出して記録を行うインクジェットヘッドを備えていることが好ましい。この場合、前記インクジェットヘッドはノズル内の液体に対して熱もしくは振動エネルギーを付与することにより液滴を吐出させるものを適用できる。
【0020】
【発明の実施の形態】
次に、本発明の実施の形態について図面を参照して説明する。
【0021】
本発明の一実施形態の液体収納容器を図1〜図5を参照して説明する。
【0022】
図1は、液体収納容器11の底部側からの外観を斜めから見た斜視図である。図2は、図1で示した液体収納容器11の分解斜視図である。図3は、図1で示した液体収納容器11と液体収納容器11内のインクをインクジェット記録装置に供給するための液体収納容器11を固定するホルダー31の斜視図である。図4は、図1で示した液体収納容器11の底部側から見た正面図である。図5は、図1で示した液体収納容器11の接続口13に使用する弾性部材12を示す図であり、図5(a)はインク導出針32が進入する側からの外観を斜めから見た斜視図、図5(b)はインク導出針32が突出する側からの外観を斜めから見た斜視図、図5(c)は断面図である。
【0023】
本実施形態の液体収納容器11は、図1に示されるように、2つの接続口13を有し、弾性部材12により開口が塞がれており、それらの弾性部材12にはスリット14が設けられている。また、図2に示すように、液体収納容器11は、フタ17、弾性部材12、フレーム16、ケース15、インク(不図示)から構成される。
【0024】
図3に示すように、液体収納容器11の弾性部材12にホルダー31のインク導出針32を挿通させ、液体収納容器11内のインクのインクジェット記録装置への供給する。
【0025】
弾性部材12には、図4に示すように、2つの弾性部材12の中心を結んだ直線に対し略平行に3つのスリット14が設けられおり、インク導出針32の進入方向と直交する方向に関する長さLが、インク導出針32の直径Rにたいして、2L>Rの関係にある。液体収納容器11をホルダー31に装着した際、ホルダー31のインク導出針32が弾性部材12のスリット14に導かれ挿通する。
【0026】
弾性部材12は、図5に示すようにドーム形状で突出部18が設けられており、スリット14がその突出部18を貫通するように設けられている。フタ17とフレーム16にて固定されると、ハウジング内において弾性部材12内部に弾性部材12の中心方向へ圧縮された状態になる。また、スリット14は、フタ17とフレーム16にて固定された後に設けられている。
【0027】
さらに、本発明の一実施形態の液体収納容器を図6を参照して説明する。
【0028】
図6は、図5同様弾性部材12の斜視図と断面図である。弾性部材12は、ドーム形状で突出部18が設けられている。フタ17とフレーム16にて固定されると、ハウジング内において弾性部材12内部に弾性部材12の中心方向へ圧縮された状態になる。
【0029】
スリット14は図6(c)に示すように、突出部18に向かって4つ設けられているが、突出部18を貫通していない。また、弾性部材12が成形される際にスリットが設けられている。
【0030】
【発明の効果】
以上説明したように、本発明によれば、容器内外を接続する接続口と該接続口を塞ぐ弾性部材と該弾性部材を収納するハウジングとを有する液体収納容器において、前記弾性部材が、前記ハウジング内で圧縮されているドーム形状部と、前記接続口内にて前記針状筒の進入する方向に突出した突出部とを有することにより、ハウジング内において弾性部材内部に弾性部材の中心方向へ圧縮された状態が作り出されているので、弾性部材に針状筒を挿通させたときの、弾性部材と針状筒の密着力が向上し、接続口密閉の信頼性が高まる。また、弾性部材の突出部の存在により、弾性部材に針状筒を挿入しても「めくれ」が発生しにくい構造になっているので、針状筒の挿入による弾性部材の陥没を防ぐことができる。このため、従来技術に比べ、針状筒と弾性部材との接触面積を大きく保てる。しかも、突出部を有することで、針状筒と弾性部材との接触面積の絶対量を増やすことができる。
【0031】
さらに、前記弾性部材の前記針状筒の進入方向に切れ込みを設けることにより、切れ込みにて針状筒を案内して貫通させることができる。そのため、針状筒の挿入時における弾性部材の損傷の発生を防いで、接続口の密閉をより確実なものにすることができる。
【0032】
また、本発明によれば、容器内外を接続する接続口と該接続口を塞ぐ弾性部材と該弾性部材を収納するハウジングとを複数有する液体収納容器において、隣接する2つの前記弾性部材の中心を結ぶ直線に対し略平行に複数の切れ込みが配置されており、前記ハウジング内で前記弾性部材の中心方向へ圧縮されていることにより、針状筒の挿入の際に針状筒が切れ込みに沿って進入するため、常に一定の切り裂きで弾性部材を貫通させることができる。そのため、針状筒の挿入時における弾性部材の損傷の発生を防いで、接続口の密閉をより確実なものにすることができる。
【0033】
また、切れ込みが複数設けられていることより、前記液体収納容器と前記液体収納容器内のインクをインクジェット記録装置に供給するための前記液体収納容器を固定するホルダーとの位置関係について、隣接する2つの前記弾性部材の中心を結ぶ直線方向のずれには、前記切れ込みの前記針状筒の進入方向と直交する方向に関する長さLの範囲で、また、隣接する2つの前記弾性部材の中心を結ぶ直線に対して垂直方向のずれには、複数の切れ込み列の両端間距離の範囲で、前記液体収納容器と前記ホルダーの位置決めが可能であることから、容易な位置決めにて、信頼性を確保できる。
【0034】
さらに、前記弾性部材をドーム形状にすると、弾性部材を固定部材で押圧したときに、ハウジング内において弾性部材内部に弾性部材の中心方向へ圧縮された状態を容易に作り出すことができる。よって、弾性部材に針状筒を挿通させたときの、弾性部材と針状筒の密着力が向上し、接続口密閉の信頼性が高まる。
【0035】
さらに、前記切れ込みが前記弾性部材を貫通していない構成にしたことにより、容器製造から容器使用開始までの物流過程で激しい環境変化の中に置かれても接続口の密閉を保てるので、環境変化への対応幅が大きい。
【0036】
さらに、前記切り込みの、前記針状筒の進入方向と直交する方向に関する長さLが、前記針状筒の直径Rに対して、2L>Rの関係にあることにより、前記弾性部材に前記針状筒を前記切り込みに沿って貫通させたとき、前記切り込みが裂けて大きくなることが無い。
【0037】
さらに、前記切れ込みが前記固定部材により固定された後に設けられることにより、前記切れ込みの位置精度が高く、上述した前記ホルダーとの位置決めに対しても有利である。また、切れ込みを設ける工程を削除できるという利点から、前記切れ込みが前記弾性部材の成形時に設けられてもよい。
【図面の簡単な説明】
【図1】液体収納容器の底部側からの外観を斜めから見た斜視図。
【図2】図1で示した液体収納容器の分解斜視図。
【図3】図1で示した液体収納容器と液体収納容器内のインクをインクジェット記録装置に供給するための液体収納容器を固定するホルダーの斜視図。
【図4】図1で示した液体収納容器の底部側から見た正面図。
【図5】図1で示した液体収納容器の接続口に使用する弾性部材を示す図。
【図6】図1及び図2で示した液体収納容器の接続口に使用する弾性部材とその比較例をインク導出針を挿入する側から見た図。
【図7】図1及び図2で示した液体収納容器の接続口に使用する弾性部材とその比較例をインク導出針を挿入する側から見た図。
【図8】図1及び図2で示した液体収納容器の接続口に対して、図5に示した弾性部材を蓋とフレームを用いて組み付けるときの様子を示す図。
【図9】図5に示した弾性部材を用いた容器の場合の、弾性部材のインク導出針の挿入途中での弾性部材の弾性変形を示す図。
【図10】図5に示した弾性部材を用いた容器において、弾性部材にインク導出針を貫通させた時の状態を示す図。
【図11】図5に示した弾性部材を用いた容器の場合の、弾性部材のインク導出針の挿入途中での弾性部材の弾性変形を示す図。
【図12】図5に示した弾性部材を用いた容器において、弾性部材にインク導出針を貫通させた時の状態を示す図。
【図13】図1で示した液体収納容器の接続口に使用する弾性部材を示す図。
【図14】図1で示した液体収納容器の接続口に使用する弾性部材を示す図。
【図15】従来の交換型液体収納容器の一例の断面図。
【図16】図15の容器内外を連通させるインク連通部のゴム栓の組み付けの様子を示す図。
【図17】図15及び図16に示した様な従来構造の容器の接続口の課題を説明するための図。
【図18】図15及び図16に示した様な従来構造の容器の接続口の課題を説明するための図。
【符号の説明】
11 液体収納容器
12 弾性部材
13 接続口
14 スリット
15 ケース
16 フレーム
17 フタ
18 突出部
31 ホルダー
32 インク導出針
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an exchangeable liquid storage container and an ink jet recording apparatus using the liquid storage container.
[0002]
[Prior art]
As an example of a conventional exchangeable liquid storage container, an ink tank for an ink jet recording apparatus having a configuration shown in FIGS. 7 and 8 is known. FIG. 7 is a cross-sectional view of the side surface of the ink tank for explaining the details of the ink tank. FIG. 8 is a cross-sectional view for explaining a plug of a connection portion that connects the inside and outside of the ink tank shown in FIG.
[0003]
As shown in FIGS. 7 and 8, the ink tank 100 includes an ink storage chamber 101 and a waste ink storage chamber 102. At the end of the ink storage chamber 101, rubber stoppers 104 for penetrating an ink supply needle (not shown) are provided at two places. Similarly, at the end of the waste ink storage chamber 102, a rubber stopper 104 is provided at one place. Provided. These rubber stoppers 104 constitute a part of the connection part, and are sandwiched between the housing part 105 of the ink tank, the ink absorber 106 and the rubber stopper 107 except for the ink communicating part 103 through which the ink supply needle passes. Have been. With this structure, when the ink tank is removed from the ink jet recording apparatus, the ink adhering to the ink supply needle that comes out of the ink tank can be removed by the ink absorber 106, and the ink adhering to the ink supply needle can be removed from the ink supply needle. It is possible to prevent the inside of the recording apparatus from being contaminated and to prevent clogging of the ink supply needle itself.
[0004]
The waste ink storage chamber 102 is composed of two layers of storage sections communicating at one end, and a portion through which the ink supply needle penetrates is provided corresponding to the lower layer storage section. That is, the ink supply needle connected to the ink supply path of the ink jet recording apparatus penetrates the waste ink storage chamber 102, and the waste ink discharged by the discharge recovery processing or the like is stored in the lower layer of the waste ink storage unit 102. Can flow into An absorber 108 is filled in substantially the entire waste ink storage unit 102, and the waste ink that has flowed into the lower layer is absorbed by the absorber 108 in the lower layer. As the waste ink flows, the region of the absorber 108 that holds the waste ink gradually spreads to the upper absorber 108, and at the same time, a part of the waste ink oozes out of the absorber. On the other hand, a partition 102A is provided adjacent to the end of the waste ink absorber 108 in the upper layer, so that the exuded ink will not be removed until the waste ink amount exceeds the holding capacity of the absorber. 102A makes it impossible to move to the portion on the right side where there is no absorber. Only when the accumulated amount of waste ink exceeds the holding capacity of the absorber, the exuded waste ink overflows from the partition wall 102A and moves to the right-hand room, and the level of the waste ink is increased. (Not shown). As a result, it is possible to detect that the waste ink storage chamber 102 is filled with the waste ink, and it is possible to prompt replacement of the ink tank 100 and the like. Further, an air communication port 109 is provided above the rear end of the waste ink storage chamber 102, and the inside of the waste ink storage section 102 and the outside of the ink tank can be communicated through the air communication port 109.
[0005]
As shown in FIG. 8, the outer diameter of the rubber plug 104 is made larger than the inner diameter of the housing part 105 in a single state, and in a radial direction of the rubber plug 104 (in the direction of arrow A in FIG. 8) using a predetermined device. After being compressed along, it is assembled in the housing portion 105 along the arrow B direction.
[0006]
[Problems to be solved by the invention]
However, in the conventional liquid container and the ink jet recording apparatus, when the liquid container is attached to the recording apparatus main body, the ink supply needle 127 of the recording apparatus main body is connected to the ink communication portion 129 of the liquid storage container 130 as shown in FIG. The volume of the inserted ink supply needle 127 inserted into the elastic body 128 which is a plug of the ink communication part is pushed in the needle insertion direction and the elastic body radial direction (FIG. 9A). Thereafter, when the ink supply needle 127 is pulled out of the elastic body 128, the elastic body 128 is depressed in the needle insertion direction, and the portion of the elastic body 128 opposite to the needle insertion start portion is turned up (FIG. 9B). ). As a result, when the liquid container is attached to the recording apparatus main body, the area where the ink supply needle 127 and the elastic body 128 come into contact with each other to block the ink is reduced, and the ink drips from the ink supply port 131, and And the surroundings of the container may be contaminated with ink.
[0007]
FIG. 10 is a plan view showing a state of a tear formed in the rubber stopper when the rubber stopper of the ink communication portion of the liquid storage container is inserted into the ink supply needle of the recording apparatus main body a plurality of times.
[0008]
In the conventional liquid container and the ink jet recording apparatus, when the liquid container is mounted on the recording apparatus main body, the ink supply needle itself of the recording apparatus main body cuts off the elastic body 128 of the rubber stopper provided in the ink tank supply port. invade. If the user of the recording apparatus repeatedly attaches and detaches the liquid storage container a plurality of times for some reason, as shown in tears 128a to 128c in FIG. Each time, the elastic body 128 is torn randomly to damage the elastic body 128. As a result, when the cuts are connected to each other, the rubber body constituting the elastic body 128 is cut and the elastic body 128 cannot be compressed at a predetermined pressure. I will not stop.
[0009]
Therefore, the present invention provides a liquid storage container that can realize a reliable connection without liquid leakage to a connection needle in a liquid storage container in which the inside and outside of the container communicate with each other by inserting a needle-shaped tube, and a recording apparatus using the same. The purpose is to do.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, one aspect of the present invention includes a connection port for connecting the inside and the outside of a container, an elastic member for closing the connection port, and a housing for accommodating the elastic member. In the liquid container in which the inside and outside of the container communicate with each other by inserting the tubular member, the elastic member has a cut in a direction in which the needle-like tube enters, and the cuts are arranged in a plurality of substantially parallel. Features.
[0011]
It is preferable that the liquid container has a fixing member that presses and fixes the elastic member, and the elastic member in the housing is compressed toward the center of the elastic member by the pressing of the fixing member.
[0012]
Furthermore, it is preferable that there are a plurality of the connection ports, and in the two adjacent elastic members, the cut is arranged substantially parallel to a straight line connecting the centers of the elastic members.
[0013]
Further, it is preferable that the shape of the elastic member is a dome shape.
[0014]
Further, the inner diameter of the housing and the outer diameter of the elastic member are substantially the same, and the elastic member is pressed in the dome-shaped curved surface of the elastic member by the fixing member. It is preferable that the elastic member is compressed toward the center.
[0015]
Further, it is preferable that the cut does not penetrate the elastic member.
[0016]
Further, it is preferable that a length L of the cut in a direction perpendicular to a direction in which the needle-shaped tube enters is in a relationship of 2L> R with respect to a diameter R of the needle-shaped tube.
[0017]
Further, it is preferable that the cut is provided after the elastic member is fixed by the fixing member. Further, the cut may be provided when the elastic member is formed.
[0018]
Still another aspect of the present invention is a recording apparatus using the liquid storage container as described above, wherein the recording apparatus main body is provided with a mounting unit to which the liquid storage container is detachably mounted, A recording device, wherein a needle-shaped cylinder is provided in the mounting means, and penetrates an elastic member of a connection port of the liquid storage container when the container is mounted.
[0019]
It is preferable that the recording apparatus include an ink jet head to which the liquid in the liquid container is supplied and which ejects liquid droplets onto a recording medium to perform recording. In this case, the inkjet head may be one that discharges liquid droplets by applying heat or vibration energy to the liquid in the nozzle.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0021]
A liquid storage container according to an embodiment of the present invention will be described with reference to FIGS.
[0022]
FIG. 1 is a perspective view of the external appearance of the liquid storage container 11 from the bottom side, as viewed obliquely. FIG. 2 is an exploded perspective view of the liquid container 11 shown in FIG. FIG. 3 is a perspective view of the liquid storage container 11 shown in FIG. 1 and a holder 31 for fixing the liquid storage container 11 for supplying the ink in the liquid storage container 11 to the ink jet recording apparatus. FIG. 4 is a front view of the liquid container 11 shown in FIG. 1 as viewed from the bottom. FIG. 5 is a view showing the elastic member 12 used for the connection port 13 of the liquid storage container 11 shown in FIG. 1. FIG. 5A is an oblique view of the appearance from the side where the ink outlet needle 32 enters. 5B is an oblique perspective view of the appearance from the side from which the ink lead-out needle 32 projects, and FIG. 5C is a cross-sectional view.
[0023]
As shown in FIG. 1, the liquid container 11 of the present embodiment has two connection ports 13, an opening is closed by an elastic member 12, and a slit 14 is provided in the elastic member 12. Have been. As shown in FIG. 2, the liquid storage container 11 includes a lid 17, an elastic member 12, a frame 16, a case 15, and ink (not shown).
[0024]
As shown in FIG. 3, the ink lead-out needle 32 of the holder 31 is inserted through the elastic member 12 of the liquid storage container 11, and the ink in the liquid storage container 11 is supplied to the ink jet recording apparatus.
[0025]
As shown in FIG. 4, the elastic member 12 is provided with three slits 14 substantially parallel to a straight line connecting the centers of the two elastic members 12, with respect to a direction orthogonal to the direction in which the ink discharge needle 32 enters. The length L has a relationship of 2L> R with respect to the diameter R of the ink outlet needle 32. When the liquid storage container 11 is mounted on the holder 31, the ink outlet needle 32 of the holder 31 is guided and inserted into the slit 14 of the elastic member 12.
[0026]
As shown in FIG. 5, the elastic member 12 has a dome-shaped protrusion 18, and the slit 14 is provided so as to penetrate the protrusion 18. When fixed by the lid 17 and the frame 16, the elastic member 12 is compressed toward the center of the elastic member 12 inside the housing. The slit 14 is provided after being fixed by the lid 17 and the frame 16.
[0027]
Further, a liquid storage container according to an embodiment of the present invention will be described with reference to FIG.
[0028]
FIG. 6 is a perspective view and a sectional view of the elastic member 12 as in FIG. The elastic member 12 has a dome-shaped projection 18. When fixed by the lid 17 and the frame 16, the elastic member 12 is compressed toward the center of the elastic member 12 inside the housing.
[0029]
As shown in FIG. 6C, four slits 14 are provided toward the protrusion 18, but do not pass through the protrusion 18. A slit is provided when the elastic member 12 is formed.
[0030]
【The invention's effect】
As described above, according to the present invention, in a liquid container having a connection port for connecting the inside and the outside of the container, an elastic member for closing the connection port, and a housing for storing the elastic member, the elastic member includes the housing By having a dome-shaped portion compressed in the inside, and a protruding portion projecting in a direction in which the needle-shaped tube enters in the connection port, the housing is compressed inside the elastic member in the housing toward the center of the elastic member. Since the closed state is created, the adhesion between the elastic member and the needle-shaped cylinder when the needle-shaped cylinder is inserted through the elastic member is improved, and the reliability of sealing the connection port is enhanced. In addition, the presence of the protruding portion of the elastic member makes it difficult for the "turn-up" to occur even when the needle-shaped tube is inserted into the elastic member. Therefore, it is possible to prevent the elastic member from being depressed by the insertion of the needle-shaped tube. it can. For this reason, the contact area between the needle-shaped cylinder and the elastic member can be kept large as compared with the related art. In addition, the provision of the protruding portion can increase the absolute amount of the contact area between the needle-shaped cylinder and the elastic member.
[0031]
Further, by providing a cut in the direction in which the needle member enters the elastic member, the needle tube can be guided and penetrated by the cut. Therefore, it is possible to prevent the elastic member from being damaged when the needle-shaped tube is inserted, and to more reliably seal the connection port.
[0032]
Further, according to the present invention, in a liquid storage container having a plurality of connection ports for connecting the inside and the outside of the container, an elastic member for closing the connection ports, and a housing for storing the elastic members, a center of two adjacent elastic members is set. A plurality of cuts are arranged substantially parallel to the connecting straight line, and are compressed in the housing toward the center of the elastic member, so that the needle-shaped tube is inserted along the cut when the needle-shaped tube is inserted. Since the elastic member enters, the elastic member can always be penetrated with a constant tear. Therefore, it is possible to prevent the elastic member from being damaged when the needle-shaped tube is inserted, and to more reliably seal the connection port.
[0033]
Further, since a plurality of cuts are provided, the positional relationship between the liquid storage container and the holder for fixing the liquid storage container for supplying the ink in the liquid storage container to the ink jet recording apparatus is adjacent to the liquid storage container. In the displacement in the linear direction connecting the centers of the two elastic members, the center of the two elastic members adjacent to each other is connected within the range of the length L in the direction orthogonal to the direction of entry of the needle-shaped tube of the cut. In the displacement in the direction perpendicular to the straight line, since the positioning of the liquid storage container and the holder is possible within the range of the distance between both ends of the plurality of slit rows, reliability can be ensured by easy positioning. .
[0034]
Further, when the elastic member is formed in a dome shape, a state in which the elastic member is compressed toward the center of the elastic member inside the elastic member can be easily created in the housing when the elastic member is pressed by the fixing member. Therefore, the adhesion between the elastic member and the needle-shaped cylinder when the needle-shaped cylinder is inserted through the elastic member is improved, and the reliability of sealing the connection port is enhanced.
[0035]
Further, the configuration in which the cut does not penetrate the elastic member allows the connection port to be kept hermetically sealed even if it is placed in a severe environmental change in the distribution process from the production of the container to the start of use of the container. The width of correspondence to is large.
[0036]
Further, the length L of the cut in a direction perpendicular to the direction of entry of the needle-shaped tube is in a relationship of 2L> R with respect to the diameter R of the needle-shaped tube, so that the needle is attached to the elastic member. When the tubular member is penetrated along the cuts, the cuts do not tear and become large.
[0037]
Further, since the notch is provided after being fixed by the fixing member, the position accuracy of the notch is high, which is advantageous for the positioning with the holder described above. In addition, the cut may be provided at the time of molding the elastic member, since the step of forming the cut can be omitted.
[Brief description of the drawings]
FIG. 1 is a perspective view of an external appearance of a liquid storage container viewed from a bottom side as viewed obliquely.
FIG. 2 is an exploded perspective view of the liquid storage container shown in FIG.
FIG. 3 is a perspective view of a holder for fixing the liquid container shown in FIG. 1 and a liquid container for supplying ink in the liquid container to an ink jet recording apparatus.
FIG. 4 is a front view of the liquid container shown in FIG. 1 as viewed from the bottom.
FIG. 5 is a view showing an elastic member used for a connection port of the liquid storage container shown in FIG. 1;
FIG. 6 is a view of an elastic member used for a connection port of the liquid storage container shown in FIGS. 1 and 2 and a comparative example viewed from a side where an ink lead-out needle is inserted.
FIG. 7 is a diagram of an elastic member used for a connection port of the liquid container shown in FIGS. 1 and 2 and a comparative example thereof, as viewed from a side where an ink lead-out needle is inserted.
FIG. 8 is a view showing a state when the elastic member shown in FIG. 5 is assembled to the connection port of the liquid container shown in FIGS. 1 and 2 using a lid and a frame.
FIG. 9 is a view showing the elastic deformation of the elastic member during insertion of the ink lead-out needle of the elastic member in the case of the container using the elastic member shown in FIG. 5;
FIG. 10 is a view showing a state where an ink lead-out needle is penetrated through the elastic member in the container using the elastic member shown in FIG. 5;
FIG. 11 is a view showing the elastic deformation of the elastic member during the insertion of the ink lead-out needle of the elastic member in the case of the container using the elastic member shown in FIG. 5;
FIG. 12 is a view showing a state where an ink lead-out needle is penetrated through the elastic member in the container using the elastic member shown in FIG. 5;
FIG. 13 is a view showing an elastic member used for a connection port of the liquid storage container shown in FIG. 1;
FIG. 14 is a view showing an elastic member used for a connection port of the liquid storage container shown in FIG. 1;
FIG. 15 is a sectional view of an example of a conventional exchangeable liquid storage container.
FIG. 16 is a diagram showing a state of assembling a rubber stopper of an ink communicating portion for communicating between the inside and the outside of the container of FIG. 15;
FIG. 17 is a view for explaining the problem of the connection port of the container having the conventional structure as shown in FIGS. 15 and 16;
FIG. 18 is a view for explaining the problem of the connection port of the container having the conventional structure as shown in FIGS. 15 and 16;
[Explanation of symbols]
Reference Signs List 11 Liquid storage container 12 Elastic member 13 Connection port 14 Slit 15 Case 16 Frame 17 Lid 18 Projection 31 Holder 32 Ink drawing needle

Claims (12)

容器内外を接続する接続口と、前記接続口を塞ぐ弾性部材と、前記弾性部材を収納するハウジングとを有し、前記弾性部材に針状筒を挿通することで容器内外が連通する液体収納容器において、
前記弾性部材が、前記針状筒の進入する方向に切れ込みを有し、且つ前記切れ込みは略平行に複数配置されていることを特徴とする液体収納容器。
A liquid container having a connection port for connecting the inside and the outside of the container, an elastic member for closing the connection port, and a housing for housing the elastic member, wherein the inside and outside of the container communicate with each other by inserting a needle-like tube through the elastic member. At
A liquid storage container, wherein the elastic member has a cut in a direction in which the needle-shaped tube enters, and a plurality of the cuts are arranged substantially in parallel.
前記弾性部材を押圧し固定する固定部材を有し、前記固定部材の押圧により、前記ハウジング内の弾性部材が前記弾性部材の中心方向へ圧縮されている請求項1に記載の液体収納容器。The liquid container according to claim 1, further comprising a fixing member that presses and fixes the elastic member, wherein the elastic member in the housing is compressed toward the center of the elastic member by the pressing of the fixing member. 前記接続口が複数あり、隣接する2つの前記弾性部材において、前記切れ込みが前記弾性部材の中心を結ぶ直線に対し略平行に配置されている請求項1または請求項2に記載の液体収納容器。3. The liquid container according to claim 1, wherein the plurality of connection ports are provided, and in the two adjacent elastic members, the cut is disposed substantially parallel to a straight line connecting the centers of the elastic members. 4. 前記弾性部材の形状がドーム形状である請求項1〜3のいずれかに記載の液体収納容器。The liquid container according to any one of claims 1 to 3, wherein the elastic member has a dome shape. 前記ハウジングの内径と前記弾性部材の外径とは略同一寸法であり、前記弾性部材のドーム形状に突き出た曲面を前記固定部材により押圧することで、前記ハウジング内で前記弾性部材が前記弾性部材の中心方向へ圧縮されている請求項4に記載の液体収納容器。The inner diameter of the housing and the outer diameter of the elastic member are substantially the same size, and the curved surface of the elastic member protruding in a dome shape is pressed by the fixing member so that the elastic member in the housing is The liquid storage container according to claim 4, wherein the liquid storage container is compressed in a center direction of the liquid storage container. 前記切れ込みが前記弾性部材を貫通していない請求項1〜5のいずれかに記載の液体収納容器。The liquid container according to claim 1, wherein the cut does not penetrate the elastic member. 前記切れ込みの、前記針状筒の進入方向と直交する方向に関する長さLが、前記針状筒の直径Rにたいして、2L>Rの関係にある請求項1〜6のいずれかのに記載の液体収納容器。The liquid according to any one of claims 1 to 6, wherein a length L of the cut in a direction perpendicular to a direction in which the needle tube enters is in a relationship of 2L> R with respect to a diameter R of the needle tube. Storage container. 前記切れ込みは、前記弾性部材が前記固定部材により固定された後に設けられる請求項1〜7のいずれかのに記載の液体収納容器。The liquid storage container according to claim 1, wherein the cut is provided after the elastic member is fixed by the fixing member. 前記切れ込みは、前記弾性部材の成形時に設けられる請求項1〜7のいずれかのに記載の液体収納容器。The liquid storage container according to any one of claims 1 to 7, wherein the cut is provided when the elastic member is formed. 請求項1〜9のいずれかに記載の液体収納容器を用いた記録装置であって、記録装置本体には前記液体収納容器が着脱可能に装着される被装着手段が設けられ、針状筒が前記被装着手段に備えられていて、容器装着時に前記液体収納容器の接続口の弾性部材を貫通する記録装置。A recording apparatus using the liquid storage container according to any one of claims 1 to 9, wherein the recording apparatus main body is provided with a mounting means to which the liquid storage container is removably mounted, and the needle-shaped cylinder is provided. A recording device provided in the mounting means, which penetrates an elastic member of a connection port of the liquid storage container when the container is mounted. 前記液体収納容器内の液体が供給され、記録媒体に対して液滴を吐出して記録を行うインクジェットヘッドを備えた請求項10に記載の記録装置。The recording apparatus according to claim 10, further comprising an inkjet head to which the liquid in the liquid storage container is supplied and ejects liquid droplets onto a recording medium to perform recording. 前記インクジェットヘッドはノズル内の液体に対して熱もしくは振動エネルギーを付与することにより液滴を吐出させるものである請求項11に記載の記録装置。The recording apparatus according to claim 11, wherein the inkjet head is configured to eject liquid droplets by applying heat or vibration energy to a liquid in a nozzle.
JP2002356245A 2002-12-09 2002-12-09 Liquid storage vessel and the like Withdrawn JP2004188632A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013536767A (en) * 2010-09-02 2013-09-26 ブラザー工業株式会社 Liquid cartridge, liquid ejection device provided with the liquid cartridge, and method for regenerating the liquid cartridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013536767A (en) * 2010-09-02 2013-09-26 ブラザー工業株式会社 Liquid cartridge, liquid ejection device provided with the liquid cartridge, and method for regenerating the liquid cartridge

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