【０００１】[0001]
【産業上の利用分野】本発明は、記録用のインクを収容
したインクカートリッジの取付け構造に関し、特にイン
クカートリッジを真っ直ぐ下方に下降させて上方開放状
のヘッドホルダー内に簡単に取付けできるようにしたも
のに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for an ink cartridge containing a recording ink, and more particularly, to allow the ink cartridge to be straightly lowered to be easily mounted in a head holder which is open upward. Regarding things.
【０００２】[0002]
【従来の技術】従来、記録ヘッドに設けた複数の噴射ノ
ズルからインクを噴射させて、文字や画像を用紙に記録
するインクジェット記録装置においては、用紙に対向状
の記録ヘッドはヘッドホルダーに設けられるとともに、
そのヘッドホルダーには、記録ヘッドに連通するインク
供給路を形成した筒状の連結筒部（所謂マニホールド）
が形成され、また記録ヘッドに供給する記録用のインク
を収容するとともに、インク供給口を設けたインクカー
トリッジを着脱可能に装着するようになっている。2. Description of the Related Art Conventionally, in an ink jet recording apparatus for recording characters and images on a paper by ejecting ink from a plurality of ejection nozzles provided on the recording head, a recording head opposed to the paper is provided in a head holder. With
The head holder has a cylindrical connecting cylinder portion (so-called manifold) in which an ink supply path communicating with the recording head is formed.
In addition, the ink for recording to be supplied to the recording head is accommodated, and the ink cartridge provided with the ink supply port is detachably mounted.
【０００３】ところで、この種のインクジェット記録装
置では、一般に、略水平状態に設けられたヘッドホルダ
ーの垂直壁部に、記録ヘッドとその記録ヘッドに連通す
る筒状の連結筒部とが取付けられるとともに、その連結
筒部に外嵌可能なインク供給口を側壁部に有するインク
カートリッジを、ヘッドホルダーに対して略水平方向に
取付けることで、インクカートリッジのインクを連結筒
部を介して記録ヘッドに供給するようにし、鉛直方向に
給紙される用紙に対して、記録ヘッドからインクを略水
平方向に噴射させて記録する水平噴射タイプの記録機構
が一般的に用いられている一方、略水平方向の用紙搬送
経路の途中部において記録する場合には、上方開放状の
箱状のヘッドホルダーの底壁部に記録ヘッドと連結筒部
とが取付けられるととにも、その連結筒部に外嵌するイ
ンク供給口を底壁部に有するインクカートリッジを、ヘ
ッドホルダー内に上方から取付けるようにし、水平方向
に給紙される用紙に対して、記録ヘッドからインクを略
下方に噴射させて記録する下方噴射タイプの記録機構も
実用化されている。By the way, in this type of ink jet recording apparatus, generally, a recording head and a cylindrical connecting cylinder portion communicating with the recording head are attached to a vertical wall portion of a head holder provided in a substantially horizontal state. , The ink cartridge having the ink supply port which can be externally fitted to the connecting cylinder part is attached in the substantially horizontal direction with respect to the head holder, so that the ink of the ink cartridge is supplied to the recording head through the connecting cylinder part. As a result, a horizontal ejection type recording mechanism is generally used in which ink is ejected from a recording head in a substantially horizontal direction on a sheet that is fed in a vertical direction, while recording is performed in a substantially horizontal direction. When recording in the middle of the paper transport path, the recording head and the connecting cylinder are attached to the bottom wall of a box-shaped head holder that opens upward. In addition, an ink cartridge having an ink supply port on the bottom wall that fits outside the connecting cylinder is installed in the head holder from above, and the paper is fed horizontally from the recording head. A downward ejection type recording mechanism that ejects ink substantially downward to perform recording has also been put into practical use.
【０００４】その下方噴射タイプの記録機構におけるイ
ンクカートリッジの取付け構造としては、例えば、図５
に示すように、上方開放状の箱状のヘッドホルダー１３
１の底壁部１３１ａには、複数の噴射ノズルが形成され
た記録ヘッド１３２が取付けられるとともに、その記録
ヘッド１３２に連通するインク通路１３１ｃを有する筒
状の連結筒部（マニホールド）１３１ｂが内側へ突出状
に形成され、その連結筒部１３１ｂには、インク漏れ防
止用のゴム製のシール部材１３３が取付けられ、更にそ
の先端部には、インクに含まれるゴミなどを除去する細
かい編目状のフィルター１３４が取付けられている。更
に、対向する１対の側壁部１３１ｄ，１３１ｆには、矩
形開口部１３１ｅ，１３１ｇが夫々形成されている。An example of the structure for mounting the ink cartridge in the downward ejection type recording mechanism is shown in FIG.
As shown in FIG.
A recording head 132 formed with a plurality of ejection nozzles is attached to the bottom wall portion 131a of No. 1, and a cylindrical connecting cylinder portion (manifold) 131b having an ink passage 131c communicating with the recording head 132 is inward. A rubber seal member 133 for preventing ink leakage is attached to the connecting cylindrical portion 131b, and a fine mesh filter for removing dust and the like contained in the ink is further provided at the tip portion thereof. 134 is attached. Further, rectangular openings 131e and 131g are formed in the pair of opposing side wall portions 131d and 131f, respectively.
【０００５】一方、合成樹脂製の箱状のインクカートリ
ッジ１３５には、記録用のインクを十分吸収させたウレ
タンフォームなどの多孔質材料からなるインク収容材１
３６が設けられており、その底壁部１３５ａには、筒状
の連結筒部１３１ｂに外嵌可能な円形のインク供給口１
３５ｂが形成されている。更に、対向する１対の側壁部
１３５ｃ，１３５ｇのうち、一方の側壁部１３５ｃに
は、帯状の弾性片１３５ｄが一体形成され、その弾性片
１３５ｄの高さ方向中段部には、矩形開口部１３１ｅに
係合可能な断面三角形状の爪部１３５ｅが形成されると
ともに、他方の側壁部１３５ｇは矩形開口部１３１ｇに
係合可能な突起部１３５ｐが形成されている。On the other hand, in the box-shaped ink cartridge 135 made of synthetic resin, the ink containing material 1 made of a porous material such as urethane foam which has sufficiently absorbed the recording ink.
36 is provided, and a circular ink supply port 1 that can be externally fitted to the tubular connection tubular portion 131b is provided on the bottom wall portion 135a thereof.
35b are formed. Further, a strip-shaped elastic piece 135d is integrally formed on one side wall portion 135c of the pair of facing side wall portions 135c and 135g, and a rectangular opening 131e is formed in the middle portion in the height direction of the elastic piece 135d. Is formed with a claw portion 135e having a triangular cross section, and the other side wall portion 135g is formed with a protrusion 135p capable of being engaged with the rectangular opening 131g.
【０００６】そして、インクカートリッジ１３６をヘッ
ドホルダー１３１に取付けるには、図５（ａ）に示すよ
うに、先ず突起部１３５ｐを矩形開口部１３１ｇに係合
させるように、突起部側（図において右側）を低くして
インクカートリッジ１３５を傾けてヘッドホルダー１３
１内に進入させ、図５（ｂ）に示すように、突起部１３
５ｐを矩形開口部１３１ｇに係合させながら、弾性片側
（図において左側）を下降させて、最終的に爪部１３５
ｅを矩形開口部１３１ｅに係合させて取付けるようにし
ている。一方、弾性片１３５ｄの操作部１３５ｆを内側
に操作して爪部１３５ｅと矩形開口部１３１ｅとの係合
を解除した後、前述した取付けとは逆の順序で、インク
カートリッジ１３５をヘッドホルダー１３１から取外す
ようにしている。In order to mount the ink cartridge 136 on the head holder 131, as shown in FIG. 5A, first, the protrusion 135p is engaged with the rectangular opening 131g. ) Lower and tilt the ink cartridge 135 to tilt the head holder 13
1 and then, as shown in FIG.
While engaging 5p with the rectangular opening 131g, the elastic piece side (the left side in the drawing) is lowered, and finally the claw 135
e is attached by being engaged with the rectangular opening 131e. On the other hand, after the operation portion 135f of the elastic piece 135d is operated inward to release the engagement between the claw portion 135e and the rectangular opening 131e, the ink cartridge 135 is removed from the head holder 131 in the reverse order of the above-described mounting. I try to remove it.
【０００７】[0007]
【発明が解決しようとする課題】図５に基づいて説明し
たように、下方噴射タイプの記録機構におけるインクカ
ートリッジの取付け構造においては、インクカートリッ
ジ１３５を傾けた不安定な姿勢でヘッドホルダー１３１
内に進入させながら、突起部１３５ｐを矩形開口部１３
１ｇに係合させると同時に、爪部１３５ｅを矩形開口部
１３１ｅに係合させるので、インクカートリッジ１３５
の取付け操作や取外し操作が複雑化すること、その取付
け操作や取外し操作の途中で、インクカートリッジ１３
５の角部を、例えば、突出状の連結筒部材１３１ｂに取
付けられている高価なフィルター１３４に引っかけて破
損させること、などの問題がある。As described with reference to FIG. 5, in the mounting structure of the ink cartridge in the downward ejection type recording mechanism, the head holder 131 is in an unstable posture with the ink cartridge 135 tilted.
While projecting into the inside, the protrusion 135p is inserted into the rectangular opening 13
Since the claw portion 135e is engaged with the rectangular opening portion 131e at the same time as engaging with 1g, the ink cartridge 135
The installation and removal operations of the ink cartridge become complicated, and during the installation and removal operations, the ink cartridge 13
There is a problem that the corner portion of 5 is damaged by, for example, being caught by an expensive filter 134 attached to the protruding connecting cylinder member 131b.
【０００８】本発明の目的は、インクカートリッジの取
付け及び取外し操作を簡単化でき、しかもその取付けや
取外し時にヘッドホルダー内の各部に衝突させることな
くスムーズに着脱し得るようなインクカートリッジの取
付け構造を提供することである。An object of the present invention is to provide an ink cartridge mounting structure capable of simplifying the mounting and dismounting operations of the ink cartridge, and at the time of mounting and dismounting, the ink cartridge can be smoothly mounted and dismounted without colliding with the respective parts in the head holder. Is to provide.
【０００９】[0009]
【課題を解決するための手段】請求項１に係るインクカ
ートリッジの取付け構造は、記録用のインクを収容した
箱状のインクカートリッジを、上方開放状のヘッドホル
ダーに設けた対向する１対の側壁部間に上方から着脱可
能に取付けるインクカートリッジの取付け構造であっ
て、インクカートリッジの底壁部に形成されたインク供
給口と、ヘッドホルダーの底壁部に突設され、インク供
給口に連結されてインクカートリッジのインクを記録ヘ
ッドに供給する連結筒部と、ヘッドホルダーの対向する
１対の側壁部に形成された１対の係止部と、インクカー
トリッジに設けられた１対の弾性片であって、対応する
係止部に係合可能な係合部を有する１対の弾性片とを備
えたものである。According to a first aspect of the present invention, there is provided an ink cartridge mounting structure in which a box-shaped ink cartridge containing recording ink is provided on a head holder that is open upward and a pair of opposing side walls. An ink cartridge mounting structure which is detachably mounted from above between parts, wherein an ink supply port formed in a bottom wall part of the ink cartridge and a bottom wall part of a head holder are projected and connected to the ink supply port. A connecting cylinder portion for supplying the ink of the ink cartridge to the recording head, a pair of locking portions formed on a pair of opposing side wall portions of the head holder, and a pair of elastic pieces provided on the ink cartridge. And a pair of elastic pieces having engaging portions that can be engaged with the corresponding locking portions.
【００１０】請求項２に係るインクカートリッジの取付
け構造は、請求項１の発明において、前記弾性片は、イ
ンクカートリッジに一体形成されたものである。請求項
３に係るインクカートリッジの取付け構造は、請求項１
又は請求項２の発明において、前記係止部は矩形開口部
であり、前記係合部は、弾性片に一体形成さた縦断面略
三角形状の爪部である。According to a second aspect of the present invention, there is provided an ink cartridge mounting structure according to the first aspect, wherein the elastic piece is formed integrally with the ink cartridge. The mounting structure of the ink cartridge according to claim 3 is the same as that of claim 1.
Alternatively, in the invention of claim 2, the engaging portion is a rectangular opening, and the engaging portion is a claw portion which is integrally formed with the elastic piece and has a generally triangular cross section.
【００１１】請求項４に係るインクカートリッジの取付
け構造は、請求項３の発明において、前記係合部は弾性
片の途中部に形成され、弾性片の上端部には、インクカ
ートリッジをヘッドホルダーに取付けたときに、ヘッド
ホルダーよりも上側に突出する係合解除用の操作部が設
けられたものである。請求項５に係るインクカートリッ
ジの取付け構造は、請求項１の発明において、前記ヘッ
ドホルダーは、１対の対向する側壁部を含む箱状であ
り、前記１対の側壁部に隣接する他の１対の対向する側
壁部に上下方向に延びる案内溝を有し、インクカートリ
ッジは、その案内溝にスライド可能に係合する突起部を
有するものである。According to a fourth aspect of the present invention, there is provided an ink cartridge mounting structure according to the third aspect of the invention, wherein the engaging portion is formed in the middle of the elastic piece, and the ink cartridge is attached to the head holder at the upper end of the elastic piece. When attached, an operation portion for releasing the engagement, which protrudes above the head holder, is provided. According to a fifth aspect of the present invention, in the ink cartridge mounting structure according to the first aspect of the present invention, the head holder has a box shape including a pair of opposing side wall portions, and another one adjacent to the pair of side wall portions. The pair of opposed side walls have a vertically extending guide groove, and the ink cartridge has a protrusion that slidably engages with the guide groove.
【００１２】[0012]
【作用】請求項１に係るインクカートリッジの取付け構
造においては、記録用のインクを収容した箱状のインク
カートリッジの底壁部にはインク供給口が形成され、上
方開放状のヘッドホルダーの底壁部には、インク供給口
に連結されてインクカートリッジのインクを記録ヘッド
に供給する連結筒部が突設される一方、ヘッドホルダー
の対向する１対の側壁部には、１対の係止部が形成され
るとともに、インクカートリッジには、対応する係止部
に係合可能な係合部を有する１対の弾性片が設けられて
いるので、インクカートリッジを水平な姿勢に保持し
て、ヘッドホルダーに設けた対向する１対の側壁間に上
方から下降させると、インクカートリッジの１対の弾性
片は、その弾性を介してヘッドホルダーの１対の側壁部
に当接しながら下降する。そして、ヘッドホルダーの連
結筒部がインクカートリッジのインク供給口に連結され
たときには、弾性片に設けた爪部が対応する係止部に夫
々係合することから、インクカートリッジをヘッドホル
ダーの各部に衝突させることなくヘッドホルダーに簡単
に取付けることができる。In the ink cartridge mounting structure according to the first aspect of the invention, the ink supply port is formed in the bottom wall of the box-shaped ink cartridge containing the recording ink, and the bottom wall of the head holder is opened upward. A connecting cylinder portion that is connected to the ink supply port and supplies the ink of the ink cartridge to the recording head is projectingly provided on the portion, while a pair of locking portions is provided on the pair of side wall portions facing each other of the head holder. Since the ink cartridge is provided with a pair of elastic pieces having engaging portions capable of engaging with corresponding locking portions, the ink cartridge is held in a horizontal posture and the head is held. When the pair of elastic pieces of the ink cartridge is lowered from above between the pair of opposite side walls provided in the holder, the pair of elastic pieces of the ink cartridge descends while coming into contact with the pair of side wall portions of the head holder through its elasticity. That. When the connecting cylinder portion of the head holder is connected to the ink supply port of the ink cartridge, the claw portions provided on the elastic pieces engage with the corresponding locking portions, respectively. It can be easily attached to the head holder without collision.
【００１３】請求項２に係るインクカートリッジの取付
け構造においては、請求項１と同様の作用を奏するが、
前記弾性片は、インクカートリッジに一体形成されてい
るので、弾性片を別部品として製作することもなく、ま
た取付ける作業を省くことができ、弾性片付きのインク
カートリッジを簡単に製作できる。In the ink cartridge mounting structure according to the second aspect, the same operation as that of the first aspect is achieved,
Since the elastic piece is formed integrally with the ink cartridge, there is no need to manufacture the elastic piece as a separate part, and the attaching work can be omitted, and the ink cartridge with the elastic piece can be easily manufactured.
【００１４】請求項３に係るインクカートリッジの取付
け構造においては、請求項１又は請求項２と同様の作用
を奏するが、前記係止部は矩形開口部であり、前記係合
部は、弾性片に一体形成さた縦断面略三角形状の爪部で
あるので、成形時に係止部を側壁部に簡単に形成できる
とともに、成形時に爪部を弾性片に一体形成でき、更に
その爪部が縦断面略三角形状であることから、爪部を対
応する矩形開口部に簡単に係合させることができる。In the ink cartridge mounting structure according to a third aspect of the present invention, the same operation as that of the first or second aspect is achieved, but the locking portion is a rectangular opening, and the engaging portion is an elastic piece. Since it is a claw part that is integrally formed in the vertical section and has a substantially triangular shape, the locking part can be easily formed on the side wall part at the time of molding, and the claw part can be integrally formed on the elastic piece at the time of molding, and the claw part is cut vertically. Since the surface has a substantially triangular shape, the claw portion can be easily engaged with the corresponding rectangular opening portion.
【００１５】請求項４に係るインクカートリッジの取付
け構造においては、請求項３と同様の作用を奏するが、
前記係合部は弾性片の途中部に形成され、弾性片の上端
部には、インクカートリッジをヘッドホルダーに取付け
たときに、ヘッドホルダーよりも上側に突出する係合解
除用の操作部が設けられているので、インクカートリッ
ジがヘッドホルダーに取付けられているときに、それら
操作部を互いに内側に操作して弾性片を弾性変形させる
ことで、弾性片に設けた爪部と矩形開口部との係合を容
易に解除でき、しかもインクカートリッジをその取付け
姿勢の状態で上方へ引き上げるだけなので、ヘッドホル
ダーの各部に衝突させることなくヘッドホルダーから片
手で簡単に且つスムーズに取外すことができる。In the ink cartridge mounting structure according to the fourth aspect, the same operation as the third aspect is achieved,
The engaging portion is formed in the middle of the elastic piece, and the upper end portion of the elastic piece is provided with an operation portion for releasing the engagement that protrudes above the head holder when the ink cartridge is attached to the head holder. Therefore, when the ink cartridge is attached to the head holder, the elastic members are elastically deformed by operating the operation portions inwardly so that the claw portion and the rectangular opening portion provided on the elastic piece are formed. Since the engagement can be easily released and the ink cartridge is simply pulled up in the mounting posture, it can be easily and smoothly removed from the head holder with one hand without colliding with each part of the head holder.
【００１６】請求項５に係るインクカートリッジの取付
け構造においては、請求項１と同様の作用を奏するが、
前記ヘッドホルダーは、前記１対の対向する側壁部を含
む箱状であり、前記１対の側壁部に隣接する他の１対の
対向する側壁部に上下方向に延びる案内溝を有し、前記
インクカートリッジは、その案内溝にスライド可能に係
合する突起部を有するので、突起部を対応する案内溝に
沿わせることで、インクカートリッジを安定な姿勢に保
持しながら、インクカートリッジをヘッドホルダーに対
して、ヘッドホルダーの各部に衝突させることなくスム
ーズに着脱することができる。According to the ink cartridge mounting structure of the fifth aspect, the same operation as that of the first aspect is achieved,
The head holder has a box shape including the pair of opposed side wall portions, and has a pair of vertically extending guide grooves on another pair of opposed side wall portions adjacent to the pair of side wall portions. Since the ink cartridge has a protrusion that slidably engages with the guide groove, by aligning the protrusion with the corresponding guide groove, the ink cartridge can be mounted on the head holder while maintaining the ink cartridge in a stable posture. On the other hand, the head holder can be smoothly attached and detached without colliding with each part.
【００１７】[0017]
【実施例】以下、本発明の実施例について、図面に基づ
いて説明する。本実施例は、インクジェット記録装置に
設けた記録機構におけるインクカートリッジの取付け構
造に適用した場合のものである。図１に示すように、イ
ンクジェット記録装置１は、基本的に、本体ケース２内
に、用紙Ｐを水平方向に搬送する用紙送り機構１０と、
キャリッジ２１を駆動するキャリッジ駆動機構２０と、
インクカートリッジ３５に収容したインクを記録ヘッド
３２に設けた複数の噴射ノズルから噴射させて用紙Ｐに
記録する記録機構３０とを設けたものである。Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is applied to an ink cartridge mounting structure in a recording mechanism provided in an inkjet recording apparatus. As shown in FIG. 1, the inkjet recording apparatus 1 basically includes a paper feed mechanism 10 for horizontally conveying a paper P in a main body case 2,
A carriage drive mechanism 20 for driving the carriage 21,
A recording mechanism 30 that records ink on the paper P by ejecting the ink contained in the ink cartridge 35 from a plurality of ejection nozzles provided on the recording head 32 is provided.
【００１８】先ず、用紙送り機構１０について説明する
と、図１に示すように、後述するキャリッジ２１の用紙
搬送方向上流側と下流側とに、１対の送りローラ１１，
１２が夫々左右方向向きに配設され、これら送りローラ
１１，１２の各々は、その左右両端部において、図示し
ない側壁板で回転可能に支持され、図示外のローラ駆動
機構により所定回転方向に駆動されて、給紙された用紙
Ｐが、キャリッジ２１の直ぐ下側を経て、キャリッジ２
１の移動方向と直交状に略水平方向に搬送される。First, the sheet feeding mechanism 10 will be described. As shown in FIG. 1, a pair of feeding rollers 11 are provided on the upstream side and the downstream side of a carriage 21 which will be described later in the sheet conveying direction.
12 are respectively arranged in the left-right direction, and the feed rollers 11 and 12 are rotatably supported by side wall plates (not shown) at both left and right ends thereof, and are driven in a predetermined rotation direction by a roller driving mechanism (not shown). Then, the fed paper P passes immediately below the carriage 21 and passes through the carriage 2.
1 is conveyed in a substantially horizontal direction orthogonal to the moving direction.
【００１９】次に、キャリッジ駆動機構２０について、
図１・図２・図４に基づいて説明する。用紙搬送経路の
直ぐ上側には、略板状のキャリッジ２１が水平に配設さ
れ、そのキャリッジ２１は、送りローラ１１，１２と並
行に配設されたガイドロッド２２によりその後端部にお
いて左右方向移動自在に支持されるとともに、そのガイ
ドロッド２２と並行に配設されたガイドレール２３によ
りその前端部において左右方向移動自在に支持されてい
る。これらガイドロッド２２とガイドレール２３とは、
その左右両端部において、側壁板４，５で夫々支持され
ている。Next, regarding the carriage drive mechanism 20,
Description will be made with reference to FIGS. 1, 2, and 4. A substantially plate-shaped carriage 21 is horizontally arranged immediately above the sheet conveyance path, and the carriage 21 is moved in the left-right direction at its rear end portion by a guide rod 22 arranged in parallel with the feed rollers 11 and 12. The guide rail 23 is movably supported, and is supported by a guide rail 23 arranged in parallel with the guide rod 22 so as to be movable in the left-right direction at its front end portion. The guide rod 22 and the guide rail 23 are
The left and right ends are supported by the side wall plates 4 and 5, respectively.
【００２０】一方、キャリッジ２１の移動範囲の左端部
には、従動プーリー２４が図示外のフレームに回転可能
に枢支されるととに、その右端部には、キャリッジ駆動
モータ２６の駆動軸に取り付けた駆動プーリー２５が設
けられ、無端状のタイミングベルト２７がこれら両プー
リー２４，２５に亙って掛け渡され、キャリッジ２１の
下端部においてこのタイミングベルト２７に連結されて
いる。そして、キャリッジ駆動モータ２６が回転駆動さ
れると、これら両プーリー２４，２５とタイミングベル
ト２７とを介して、キャリッジ２１が、これらガイドロ
ッド２２及びガイドレール２３に支持されて、記録方向
（右方向）及び反記録方向（左方向）に移動駆動され
る。On the other hand, a driven pulley 24 is rotatably supported by a frame (not shown) at the left end of the movement range of the carriage 21, and a drive shaft of a carriage drive motor 26 is provided at the right end thereof. An attached drive pulley 25 is provided, and an endless timing belt 27 is stretched over both pulleys 24 and 25, and is connected to the timing belt 27 at the lower end of the carriage 21. When the carriage drive motor 26 is rotationally driven, the carriage 21 is supported by the guide rods 22 and the guide rails 23 via the pulleys 24 and 25 and the timing belt 27, and the recording direction (rightward direction). ) And the opposite recording direction (leftward).
【００２１】次に、キャリッジ２１に載置され、インク
の噴射により用紙Ｐに記録する記録機構３０について、
図１〜図４に基づいて説明する。前記キャリッジ２１上
には、上方開放状の箱状のヘッドホルダー３１が固着さ
れている。そのヘッドホルダー３１の底壁部３１ａの下
側の後端部側には、複数の噴射ノズルに対応する複数本
のインク供給路３２ａが形成された記録ヘッド３２が取
付けられるとともに、その底壁部３１ａの中央部には、
上方に突出した筒状の連結筒部（所謂マニホールド）３
１ｂが形成されている。即ち、記録ヘッド３２からイン
クを略下方に噴射させて、直ぐ下側に水平方向に搬送さ
れる用紙Ｐに記録する下方噴射タイプに構成されてい
る。Next, the recording mechanism 30 which is mounted on the carriage 21 and records on the paper P by ejecting ink,
This will be described with reference to FIGS. On the carriage 21, a box-shaped head holder 31 that is open upward is fixed. A recording head 32 having a plurality of ink supply passages 32a corresponding to a plurality of ejection nozzles is attached to the rear end portion side below the bottom wall portion 31a of the head holder 31, and the bottom wall portion thereof is attached. In the central part of 31a,
A tubular connecting tubular portion (so-called manifold) 3 protruding upward
1b is formed. That is, it is configured as a downward ejection type in which ink is ejected substantially downward from the recording head 32 and recording is performed on the paper P that is horizontally conveyed immediately downward.
【００２２】その連結筒部３１ｂの内部には、記録ヘッ
ド３２に連通するインク通路３１ｃが形成されるととも
に、その連結筒部３１ｂの外側は、インク漏れを防止す
る為にゴム製のシール部材３３が装着されている。その
連結筒部３１ｂの上端には、供給されるインクに含まれ
る塵などを除去する為に、直径数ミクロンのステンレス
線材を網状に編んだフィルター３４が取付けられてい
る。前記ヘッドホルダー３１の前後に設けられた対向す
る１対の側壁部３１ｅ，３１ｆの上端近傍部には、係止
部である左右方向に長い矩形開口部３１ｅ，３１ｇが夫
々形成されている。更に、ヘッドホルダー３１の左右に
設けられた対向する１対の側壁部３１ｈ，３１ｊの内側
には、上下方向に延びる所定幅を有する案内溝３１ｉ，
３１ｋが夫々形成されている。An ink passage 31c communicating with the recording head 32 is formed inside the connecting cylinder portion 31b, and a rubber seal member 33 is provided outside the connecting cylinder portion 31b to prevent ink leakage. Is installed. A filter 34 made of a mesh of stainless wire having a diameter of several microns is attached to the upper end of the connecting cylinder 31b in order to remove dust contained in the supplied ink. In the vicinity of the upper ends of a pair of opposing side wall portions 31e and 31f provided at the front and rear of the head holder 31, rectangular opening portions 31e and 31g, which are locking portions and are long in the left-right direction, are formed, respectively. Further, inside the pair of opposing side wall portions 31h and 31j provided on the left and right of the head holder 31, guide grooves 31i having a predetermined width extending in the vertical direction are provided.
31k are formed respectively.
【００２３】前記インクカートリッジ３５は、ヘッドホ
ルダー３１に着脱可能な合成樹脂製の箱状であり、その
内部には、記録用のインクを十分に浸み込ませたウレタ
ンフォームなどからなるインク収容材３６が設けられて
いる。また、インクカートリッジ３５の底壁部３５ａの
中央部には、連結筒部３２ｂに外嵌可能な円形のインク
供給口３５ｂが形成されている。そのインクカートリッ
ジ３５の前後に設けられた対向する１対の側壁部３５
ｃ，３５ｇの下端近傍部には、弾性を有し上方に延びる
所定幅の弾性片３５ｄ，３５ｈの下端部が一体的に夫々
形成されている。The ink cartridge 35 is in the form of a box made of synthetic resin that can be attached to and detached from the head holder 31, and the inside of the ink cartridge 35 is an ink containing material made of urethane foam or the like in which recording ink is sufficiently impregnated. 36 are provided. Further, a circular ink supply port 35b that can be externally fitted to the connecting cylinder portion 32b is formed at the center of the bottom wall portion 35a of the ink cartridge 35. A pair of opposing side wall portions 35 provided in front of and behind the ink cartridge 35.
In the vicinity of the lower ends of c and 35g, the lower ends of elastic pieces 35d and 35h having elasticity and extending upward are integrally formed, respectively.
【００２４】そして、各弾性片３５ｄ，３５ｈの高さ方
向中段部には、係合部である縦断面略三角形状の爪部３
５ｅ，３５ｉが夫々形成されるとともに、各弾性片３５
ｄ，３５ｈの上端部には、インクカートリッジ３５をヘ
ッドホルダー３１に取付けたときに、ヘッドホルダー３
１よりも上側に突出する係合解除用の操作部３５ｆ，３
５ｊが夫々形成されている。更に、インクカートリッジ
３５の左右に設けられた対向する１対の側壁部３５ｋ，
３５ｍの外側には、ヘッドホルダー３１の側壁部３１
ｈ，３１ｊに形成された対応する案内溝３１ｉ，３１ｋ
にスライド可能に係合する上下方向に延びた突起部３５
ｌ，３５ｎが夫々形成されている。At the middle portion in the height direction of each of the elastic pieces 35d and 35h, the claw portion 3 having an approximately triangular cross section as an engaging portion is formed.
5e and 35i are respectively formed, and each elastic piece 35 is formed.
When the ink cartridge 35 is attached to the head holder 31, the head holder 3 is attached to the upper ends of d and 35h.
Disengaging operation portions 35f, 3 projecting above 1
5j are formed respectively. Further, a pair of side wall portions 35k facing each other provided on the left and right of the ink cartridge 35,
The side wall portion 31 of the head holder 31 is provided outside the 35 m.
Corresponding guide grooves 31i, 31k formed in h, 31j
A vertically extending projection 35 that slidably engages with the
1, 35n are formed respectively.
【００２５】次に、インクカートリッジ３５をヘッドホ
ルダー３１に取付けるときの作用について、図３・図４
に基づいて説明する。先ず、図４に示すように、弾性片
３５ｄ，３５ｈが矩形開口部３１ｅ，３１ｇに対応する
向きで、しかもインクカートリッジ３５を水平な姿勢に
保持して、ヘッドホルダー３１内に上方から下降させ
る。このとき、これら突起部３５ｌ，３５ｎを対応する
案内溝３１ｉ，３１ｋに係合させてスライドすること
で、インクカートリッジ３５を、前後方向と左右方向と
に位置決めでき且つ安定な水平姿勢に保持しながら、イ
ンクカートリッジ３５をヘッドホルダー３１内に進入さ
せることができる。Next, the operation of attaching the ink cartridge 35 to the head holder 31 will be described with reference to FIGS.
It will be described based on. First, as shown in FIG. 4, the elastic pieces 35d and 35h are oriented in a direction corresponding to the rectangular openings 31e and 31g, and further, the ink cartridge 35 is held in a horizontal posture and lowered into the head holder 31 from above. At this time, the ink cartridge 35 can be positioned in the front-rear direction and the left-right direction and held in a stable horizontal posture by engaging and sliding the protrusions 35l, 35n in the corresponding guide grooves 31i, 31k. The ink cartridge 35 can be inserted into the head holder 31.
【００２６】このとき、インクカートリッジ３５の１対
の弾性片３５ｄ，３５ｈは、その弾性を介してヘッドホ
ルダー３１の１対の側壁部３１ｄ，３１ｆに夫々当接し
ながら下降する。そして、図３に示すように、ヘッドホ
ルダー３１の連結筒部３２ｂがインクカートリッジ３５
のインク供給口３５ｂに連結されたときには、弾性片３
５ｄ，３５ｈに設けた爪部３５ｅ，３５ｉが対応する矩
形開口部３１ｅ，３１ｇに夫々自動的に確実に係合し
て、インクカートリッジ３５をヘッドホルダー３１内に
取付けることができる。At this time, the pair of elastic pieces 35d and 35h of the ink cartridge 35 descend while coming into contact with the pair of side wall portions 31d and 31f of the head holder 31 through its elasticity. Then, as shown in FIG. 3, the connecting cylinder portion 32 b of the head holder 31 is connected to the ink cartridge 35.
When the elastic piece 3 is connected to the ink supply port 35b of
The claw portions 35e and 35i provided on the 5d and 35h are automatically and surely engaged with the corresponding rectangular opening portions 31e and 31g, respectively, so that the ink cartridge 35 can be mounted in the head holder 31.
【００２７】このとき、連結筒部３２ｂの上端部がイン
ク供給口３５ｂを挿通してインク収容材３６に下方から
押圧状に接触する。これにより、インク収容材３６のイ
ンクが連結筒部３２ｂのインク供給路３２ａを介して記
録ヘッド３２に供給されるようになっている。ここで、
シール部材３３がインク供給口３５ｂに密着状に押圧さ
れることにより、インク収容材３６のインクが外部に漏
れるのを防止されている。At this time, the upper end of the connecting tube portion 32b is inserted into the ink supply port 35b and comes into contact with the ink containing material 36 from below in a pressed state. As a result, the ink in the ink containing material 36 is supplied to the recording head 32 via the ink supply passage 32a of the connecting cylinder portion 32b. here,
The seal member 33 is pressed tightly against the ink supply port 35b to prevent the ink in the ink containing material 36 from leaking to the outside.
【００２８】一方、図３に示すように、インクカートリ
ッジ３５がヘッドホルダー３１に取付けられているとき
に、弾性片３５ｄ，３５ｈに設けられた操作部３５ｆ，
３５ｊを互いに内側に操作して、各弾性片３５ｄ，３５
ｈを２点鎖線で示すように弾性変形させることで、弾性
片３５ｄ，３５ｈに設けた爪部３５ｅ，３５ｉと矩形開
口部３１ｅ，３１ｇとの係合を容易に解除でき、しかも
インクカートリッジ３５をその取付け姿勢の状態で上方
へ取外すことができる。On the other hand, as shown in FIG. 3, when the ink cartridge 35 is mounted on the head holder 31, the operating portions 35f, 35f provided on the elastic pieces 35d, 35h are
35j are operated inward with respect to each other so that the elastic pieces 35d, 35
By elastically deforming h as indicated by the chain double-dashed line, the engagement between the claw portions 35e and 35i provided on the elastic pieces 35d and 35h and the rectangular openings 31e and 31g can be easily released, and the ink cartridge 35 can be removed. It can be removed upwards in its mounting posture.
【００２９】このように、箱状のインクカートリッジ３
５の底壁部３５ａにインク供給口３５ｂを設け、ヘッド
ホルダー３１の底壁部３１ａに連結筒部３２ｂを設ける
とともに、ヘッドホルダー３１の１対の側壁部３１ｄ，
３１ｆに１対の矩形開口部３１ｅ，３１ｇを設け、更に
インクカートリッジ３５の１対の側壁部３５ｃ，３５ｇ
に、矩形開口部３１ｅ，３１ｇに係合可能な爪部３５
ｅ，３５ｉを有する１対の弾性片３５ｄ，３５ｈを設け
たので、インクカートリッジ３５を水平な姿勢に保持し
て、ヘッドホルダー３１内に上方から下降させるだけ
で、インクカートリッジ３５の１対の弾性片３５ｄ，３
５ｈが弾性変形して側壁部３１ｄ，３１ｆに当接しなが
ら下降して、弾性片３５ｄ，３５ｈの爪部３５ｅ，３５
ｉが対応する矩形開口部３１ｅ，３１ｇに夫々自動的に
係合することから、インクカートリッジ３５をヘッドホ
ルダー３１のフィルター３４などの各部に衝突させるこ
となく、ヘッドホルダー３１に簡単に取付けることがで
きる。In this way, the box-shaped ink cartridge 3
5, a bottom wall portion 35a of the head holder 31 is provided with an ink supply port 35b, a bottom wall portion 31a of the head holder 31 is provided with a connecting cylinder portion 32b, and a pair of side wall portions 31d of the head holder 31 are provided.
31f is provided with a pair of rectangular openings 31e and 31g, and a pair of side wall portions 35c and 35g of the ink cartridge 35 is further provided.
And a claw portion 35 that can be engaged with the rectangular openings 31e and 31g.
Since the pair of elastic pieces 35d and 35h having e and 35i are provided, the pair of elastic pieces of the ink cartridge 35 can be simply moved by holding the ink cartridge 35 in a horizontal posture and lowering it into the head holder 31 from above. Pieces 35d, 3
5h elastically deforms and descends while contacting the side walls 31d and 31f, and the claws 35e and 35 of the elastic pieces 35d and 35h.
Since i automatically engages with the corresponding rectangular openings 31e and 31g, respectively, the ink cartridge 35 can be easily attached to the head holder 31 without colliding with the respective parts such as the filter 34 of the head holder 31. .
【００３０】更に、インクカートリッジ３５がヘッドホ
ルダー３１に取付けられているときに、弾性片３５ｄ，
３５ｈの操作部３５ｆ，３５ｊを互いに内側に操作し
て、各弾性片３５ｄ，３５ｈを弾性変形させることで、
爪部３５ｅ，３５ｉと矩形開口部３１ｅ，３１ｇとの係
合を容易に解除でき、しかもインクカートリッジ３５を
その取付け姿勢の状態で上方へ引き上げるだけで、ヘッ
ドホルダー３１の各部に衝突させることなく、簡単に且
つスムーズに取外すことができる。Further, when the ink cartridge 35 is attached to the head holder 31, the elastic pieces 35d,
By operating the operation portions 35f and 35j of 35h inwardly to elastically deform the elastic pieces 35d and 35h,
The engagement between the claw portions 35e, 35i and the rectangular openings 31e, 31g can be easily released, and moreover, only by pulling the ink cartridge 35 upward in the mounting posture, it is possible to prevent collision with each portion of the head holder 31. Can be removed easily and smoothly.
【００３１】尚、前記ヘッドホルダー３１は、対向する
１対の側壁部３１ｄ，３１ｆだけを有するものであって
もよく、またヘッドホルダー３１が傾斜状にキャリッジ
２１上に取付けられ、そのヘッドホルダー３１に対して
斜め方向に取付ける取付け構造であってもよい。更に、
インクカートリッジ３５の弾性片３５ｄ，３５ｈを、底
壁部３５ａからＵ字状に上方に延びるように形成しても
よく、また１対だけでなく複数対形成してもよい。尚、
前記実施例に関し、既存の技術や当業者に自明の技術に
基いて種々の変更を加えることもあり得る。The head holder 31 may have only a pair of opposing side wall portions 31d and 31f, and the head holder 31 is mounted on the carriage 21 in an inclined shape, and the head holder 31 is attached to the head holder 31. It may be a mounting structure that is mounted obliquely with respect to. Furthermore,
The elastic pieces 35d and 35h of the ink cartridge 35 may be formed so as to extend upward in a U shape from the bottom wall portion 35a, and a plurality of pairs may be formed instead of one pair. still,
Various modifications may be made to the above-described embodiments based on existing technology or technology obvious to those skilled in the art.
【００３２】[0032]
【発明の効果】請求項１に係るインクカートリッジの取
付け構造によれば、箱状のインクカートリッジの底壁部
にインク供給口を設け、ヘッドホルダーの底壁部に連結
筒部を設けるとともに、ヘッドホルダーの１対の側壁部
に１対の係止部を設け、更にインクカートリッジに、係
止部に係合可能な係合部を有する１対の弾性片を設けた
ので、インクカートリッジを水平な姿勢に保持して、ヘ
ッドホルダーに設けた対向する１対の側壁間に上方から
下降させるだけで、インクカートリッジの１対の弾性片
が弾性変形してヘッドホルダーの側壁部に当接しながら
下降して、弾性片に設けた爪部が対応する係止部に夫々
係合することから、インクカートリッジをヘッドホルダ
ーの各部に衝突させることなくヘッドホルダーに簡単に
取付けることができる。According to the ink cartridge mounting structure of the first aspect, the ink supply port is provided in the bottom wall of the box-shaped ink cartridge, the connecting cylinder is provided in the bottom wall of the head holder, and the head is provided. Since the pair of side wall portions of the holder are provided with the pair of locking portions, and the ink cartridge is further provided with the pair of elastic pieces having the engaging portions capable of being engaged with the locking portions, the ink cartridge is kept horizontal. By holding it in a posture and lowering it from above between a pair of opposing side walls provided on the head holder, the pair of elastic pieces of the ink cartridge elastically deforms and descends while contacting the side wall portion of the head holder. Since the claw portions provided on the elastic piece engage with the corresponding locking portions respectively, the ink cartridge can be easily attached to the head holder without colliding with the respective portions of the head holder. That.
【００３３】請求項２に係るインクカートリッジの取付
け構造によれば、請求項１と同様の効果を奏するが、前
記弾性片は、インクカートリッジに一体形成されている
ので、弾性片を別部品として製作することもなく、また
取付ける作業を省くことができ、弾性片付きのインクカ
ートリッジを簡単に製作できる。According to the ink cartridge mounting structure of the second aspect, the same effect as that of the first aspect is obtained, but since the elastic piece is formed integrally with the ink cartridge, the elastic piece is manufactured as a separate component. In addition, the work of mounting can be omitted, and the ink cartridge with the elastic piece can be easily manufactured.
【００３４】請求項３に係るインクカートリッジの取付
け構造によれば、請求項１又は請求項２と同様の効果を
奏するが、前記係止部は矩形開口部であり、前記係合部
は、弾性片に一体形成さた縦断面略三角形状の爪部であ
るので、成形時に係止部を側壁部に簡単に形成できると
ともに、成形時に爪部を弾性片に一体形成でき、更にそ
の爪部が縦断面略三角形状であることから、爪部を対応
する矩形開口部に簡単に係合させることができる。According to the ink cartridge mounting structure of the third aspect, the same effect as that of the first or second aspect can be obtained, but the locking portion is a rectangular opening, and the engaging portion is elastic. Since it is a claw portion that is integrally formed on the piece and has a substantially triangular cross-section in the vertical direction, the locking portion can be easily formed on the side wall portion at the time of molding, and the claw portion can be integrally formed on the elastic piece at the time of molding. Since the vertical cross section is substantially triangular, the claw portion can be easily engaged with the corresponding rectangular opening.
【００３５】請求項４に係るインクカートリッジの取付
け構造によれば、請求項３と同様の効果を奏するが、前
記係合部は弾性片の途中部に形成され、弾性片の上端部
には、インクカートリッジをヘッドホルダーに取付けた
ときに、ヘッドホルダーよりも上側に突出する係合解除
用の操作部が設けられているので、インクカートリッジ
がヘッドホルダーに取付けられているときに、それら操
作部を互いに内側に操作して弾性片を弾性変形させるこ
とで、弾性片に設けた爪部と矩形開口部との係合を容易
に解除でき、しかもインクカートリッジをその取付け姿
勢の状態で上方へ引き上げるだけなので、ヘッドホルダ
ーの各部に衝突させることなくヘッドホルダーから片手
で簡単に且つスムーズに取外すことができる。According to the ink cartridge mounting structure of the fourth aspect, the same effect as that of the third aspect is obtained, but the engaging portion is formed in the middle of the elastic piece, and the upper end portion of the elastic piece has the following structure. When the ink cartridge is attached to the head holder, the engagement releasing operation part that protrudes above the head holder is provided. By elastically deforming the elastic pieces by operating them inward, the engagement between the claw portion and the rectangular opening provided on the elastic pieces can be easily released, and moreover, the ink cartridge can be pulled up in the mounting posture. Therefore, it can be easily and smoothly removed from the head holder with one hand without colliding with each part of the head holder.
【００３６】請求項５に係るインクカートリッジの取付
け構造によれば、請求項１と同様の効果を奏するが、前
記ヘッドホルダーは、前記１対の対向する側壁部を含む
箱状であり、その１対の側壁部に隣接する他の１対の対
向する側壁部に上下方向に延びる案内溝を有し、前記イ
ンクカートリッジは、その案内溝にスライド可能に係合
する突起部を有するので、突起部を対応する案内溝に沿
わせることで、インクカートリッジを安定な姿勢に保持
しながら、インクカートリッジをヘッドホルダーに対し
て、ヘッドホルダーの各部に衝突させることなくスムー
ズに着脱することができる。According to the mounting structure of the ink cartridge of the fifth aspect, the same effect as that of the first aspect can be obtained, but the head holder has a box shape including the pair of opposed side wall portions. The pair of side wall portions adjacent to the pair of side wall portions has a vertically extending guide groove, and the ink cartridge has a protruding portion slidably engaged with the guide groove. By aligning with the corresponding guide groove, the ink cartridge can be smoothly attached to and detached from the head holder without colliding with each part of the head holder while keeping the ink cartridge in a stable posture.
【図１】本発明の実施例に係る、インクジェット記録装
置の概略斜視図である。FIG. 1 is a schematic perspective view of an inkjet recording apparatus according to an embodiment of the present invention.
【図２】インクジェット記録装置の部分平面図である。FIG. 2 is a partial plan view of the inkjet recording apparatus.
【図３】図２のＡ─Ａ線縦断側面図である。FIG. 3 is a vertical sectional side view taken along line AA of FIG. 2;
【図４】ヘッドホルダとインクカートリッジの分解斜視
図である。FIG. 4 is an exploded perspective view of a head holder and an ink cartridge.
【図５】従来技術に係り、（ａ）はインクカートリッジ
をヘッドホルダーに取付ける状態を示す要部縦断側面図
であり、（ｂ）はインクカートリッジをヘッドホルダー
に取付けた状態の（ａ）相当図である。FIG. 5 is a side view of a principal part showing a state in which an ink cartridge is attached to a head holder, and FIG. 5 (b) is a view corresponding to FIG. Is.
１ インクジェット記録装置 ３０ 記録機構 ３１ ヘッドホルダー ３１ａ 底壁部 ３１ｂ 連結筒部 ３１ｄ 側壁部 ３１ｅ 矩形開口部 ３１ｆ 側壁部 ３１ｇ 矩形開口部 ３１ｈ 側壁部 ３１ｉ 案内溝 ３１ｊ 側壁部 ３１ｋ 案内溝 ３５ インクカートリッジ ３５ａ 底壁部 ３５ｂ インク供給口 ３５ｃ 側壁部 ３５ｄ 弾性片 ３５ｅ 爪部 ３５ｆ 操作部 ３５ｇ 側壁部 ３５ｈ 弾性片 ３５ｉ 爪部 ３５ｊ 操作部 ３５ｋ 側壁部 ３５ｌ 突起部 ３５ｍ 側壁部 ３５ｎ 突起部 DESCRIPTION OF SYMBOLS 1 Inkjet recording apparatus 30 Recording mechanism 31 Head holder 31a Bottom wall part 31b Connection cylinder part 31d Side wall part 31e Rectangular opening 31f Side wall part 31g Rectangular opening 31h Side wall part 31i Guide groove 31j Side wall part 31k Guide groove 35 Ink cartridge 35a Bottom wall Part 35b Ink supply port 35c Side wall part 35d Elastic piece 35e Claw part 35f Operating part 35g Side wall part 35h Elastic piece 35i Claw part 35j Operating part 35k Side wall part 35l Projection part 35m Side wall part 35n Projection part
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|---|---|---|---|
| JP18782795AJP3248831B2 (en) | 1995-06-29 | 1995-06-29 | Ink cartridge mounting structure |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18782795AJP3248831B2 (en) | 1995-06-29 | 1995-06-29 | Ink cartridge mounting structure |
| Publication Number | Publication Date |
|---|---|
| JPH0911500Atrue JPH0911500A (en) | 1997-01-14 |
| JP3248831B2 JP3248831B2 (en) | 2002-01-21 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18782795AExpired - LifetimeJP3248831B2 (en) | 1995-06-29 | 1995-06-29 | Ink cartridge mounting structure |
| Country | Link |
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