JP2563784B2 - Connection structure of ink supply tube in ink jet recording apparatus - Google Patents
Connection structure of ink supply tube in ink jet recording apparatusInfo
- Publication number
- JP2563784B2 JP2563784B2 JP61302483A JP30248386A JP2563784B2 JP 2563784 B2 JP2563784 B2 JP 2563784B2 JP 61302483 A JP61302483 A JP 61302483A JP 30248386 A JP30248386 A JP 30248386A JP 2563784 B2 JP2563784 B2 JP 2563784B2
- Authority
- JP
- Japan
- Prior art keywords
- ink supply
- supply tube
- pipe
- tube
- ink
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
Landscapes
- Ink Jet (AREA)
- Joints With Pressure Members (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はインクジェット記録装置に用いるインク供給
用チューブの接続構造に関する。The present invention relates to an ink supply tube connection structure used in an inkjet recording apparatus.
（従来技術） インクタンクから印字ヘッドインクを供給するため
に、これら両者の間には可焼性のインク供給用チューブ
が接続されるが、このインク供給用チューブａの端部を
インクタンクあるいは印字ヘッドの各本体へ接続するに
は、、実開昭59−176543号公報に見られるように、チュ
ーブアダプタのパイブ端にインク供給用チューブを嵌め
合わせた上、このチューブアダプタをヘッド本体に結合
するようにするか、あるいは第２図に示したように、ヘ
ッド本体ａのパイプｂ端にインク供給用チューブｃを嵌
合わせ、さらにこのチューブｃの上にスリーブｄを被嵌
した上、このスリーブｄを止め部材ｅによって固定する
ような手法が採られている。(Prior Art) In order to supply the print head ink from the ink tank, a combustible ink supply tube is connected between the two, and the end portion of the ink supply tube a is connected to the ink tank or the printing. To connect to each head body, as shown in Japanese Utility Model Laid-Open No. 59-176543, fit an ink supply tube to the tube end of the tube adapter, and then connect this tube adapter to the head body. Alternatively, as shown in FIG. 2, an ink supply tube c is fitted to the end of the pipe b of the head main body a, and a sleeve d is fitted on the tube c and then the sleeve d. The fixing member e is used for fixing.
しかしながら、インクジェット記録装置に用いられる
インク供給用チューブは実際上きわめて細く、これを所
要の通孔を有するパイプに嵌め合わせるには、チューブ
端をかなり拡開させなければならないため、長期の使用
によってチューブに割れが生じたり、あるいは温度の変
化によってチューブが変形したり、さらには、パイプ端
との間に形成される段差部分に気泡が生じて、これがノ
ズル内に入り込んでインク滴の吐出不良を惹起するとい
った不都合が生じる。However, the ink supply tube used in the ink jet recording apparatus is actually extremely thin, and in order to fit this into a pipe having a required through hole, the tube end needs to be widened considerably, so that the tube cannot be used for a long time. If the tube is cracked or the tube is deformed due to temperature change, and bubbles are generated in the step portion formed between the end of the pipe and this, it will enter the nozzle and cause defective ejection of ink droplets. It causes inconvenience.
（発明が解決しようとする課題） 本発明はこのような不都合に鑑みてなされたもので、
その目的とするところは、インクの供給に支障を生じさ
せることなくインク供給用チューブを印字ヘッド本体等
へ確実に接続させることのできる新たな接続機構を提供
することにある。(Problems to be Solved by the Invention) The present invention has been made in view of such disadvantages,
It is an object of the present invention to provide a new connection mechanism capable of reliably connecting the ink supply tube to the print head main body or the like without causing any trouble in the ink supply.
（課題を解決するための手段） すなわち、本発明はかかる課題を達成するためのイン
クジェット記録装置におけるインク供給用チューブの接
続構造として、インク供給側本体もしくはインク被供給
側本体の少なくとも一方に、インク供給用チューブを嵌
込む結合パイプを設けて、この結合パイプの先端面をシ
ール部材の押圧面とし、軸心部内方には、インク供給用
チューブの肉厚に相当する間隙を設けて該チューブ内に
嵌入する嵌合管部を突出形成する一方、結合パイプと結
合する継手部材には、インク供給用チューブが貫通する
部分の内端面に、押圧面と協同して弾性材よりなるリン
グ状のシール部材を押圧変形させる押圧面を形成するよ
うにしたものである。(Means for Solving the Problems) That is, according to the present invention, as a connection structure of an ink supply tube in an ink jet recording apparatus for achieving such a problem, an ink is provided on at least one of an ink supply side body or an ink supply side body A connecting pipe into which the supply tube is fitted is provided, and the tip end surface of the connecting pipe is used as the pressing surface of the seal member, and a gap corresponding to the thickness of the ink supply tube is provided inside the shaft center portion of the connecting pipe. While the fitting pipe portion that fits into the projection is formed to project, the joint member that joins with the joining pipe has a ring-shaped seal made of an elastic material in cooperation with the pressing surface on the inner end surface of the portion where the ink supply tube penetrates. A pressing surface for pressing and deforming the member is formed.
（実施例） そこで以下に本発明の実施例について説明する。(Example) Then, the Example of this invention is described below.
第１図は、インクカートリッジと印字ヘッドとの間の
フィルタに適用されるインク供給用チューブの接続構造
に関する本発明の一実施例を示したものである。FIG. 1 shows an embodiment of the present invention relating to the connection structure of an ink supply tube applied to a filter between an ink cartridge and a print head.
図において符号１は、フィルタ本体のチューブ接続部
分に突出形成した結合パイプで、この結合パイプ１の先
端面は、後述するシールリング13を押圧する押圧面６と
して形成され、また、この軸心部には、インク供給用チ
ューブ15を嵌込むための若干大径の嵌込み孔２が形成さ
れていて、その嵌込み孔２の内方には、チューブ15の肉
厚に相当する間隙を設けてチューブ15内に貫入する細い
嵌合管部３が一体的に突出形成され、さらにこの中心に
は、フィルタ本体２の内部と連通するインク供給孔４が
設けられている。In the figure, reference numeral 1 is a connecting pipe formed in a protruding manner at a tube connecting portion of the filter body, and a front end surface of the connecting pipe 1 is formed as a pressing surface 6 for pressing a seal ring 13 described later, and the shaft center portion Has a slightly larger diameter insertion hole 2 into which the ink supply tube 15 is inserted, and a gap corresponding to the thickness of the tube 15 is provided inside the insertion hole 2. A thin fitting tube portion 3 penetrating into the tube 15 is integrally formed to project, and an ink supply hole 4 communicating with the inside of the filter body 2 is provided at the center thereof.
一方、図中符号７は、上記した結合パイプ１とインク
供給用チューブ15とを結合するための管継手で、この管
継手７は、金属あるいはプラスチックを用いて袋ナット
状に形成され、その内孔９の内面には、結合パイプ１の
外周面に形成した雄ネジ５と螺合する雌ねじ10が形成さ
れ、さらにこの内奥には、インク供給用チューブ15が貫
通する挿通孔11が穿設されていて、内孔９の内奥端と挿
通孔11との境には、シールリング13を押圧するテーパー
状の押圧面８が形成されている。On the other hand, reference numeral 7 in the drawing is a pipe joint for connecting the above-mentioned coupling pipe 1 and the ink supply tube 15 to each other. The pipe joint 7 is formed of metal or plastic into a cap nut shape. A female screw 10 is formed on the inner surface of the hole 9 to be screwed into the male screw 5 formed on the outer peripheral surface of the coupling pipe 1. Further, an insertion hole 11 through which the ink supply tube 15 penetrates is bored in the inner portion thereof. A tapered pressing surface 8 that presses the seal ring 13 is formed at the boundary between the inner rear end of the inner hole 9 and the insertion hole 11.
他方、上述したシールリング13は、インク供給用チュ
ーブ15を結合パイプ１に気密に固定するためのもので、
このシールリング13は、弾性材によって内径がインク供
給用チューブ15の外径よりも若干小さなリング状部材と
して形成され、結合パイプ１の先端面６と管継手７の内
奥に設けた各押圧面６、８とによって押圧された際に径
方向に変形して、インク供給用チューブ15を外方から内
方に向けて気密に押圧保持するように構成されている。On the other hand, the above-mentioned seal ring 13 is for fixing the ink supply tube 15 to the coupling pipe 1 in an airtight manner,
The seal ring 13 is formed of an elastic material as a ring-shaped member having an inner diameter slightly smaller than the outer diameter of the ink supply tube 15, and each pressing surface provided inside the tip end surface 6 of the coupling pipe 1 and the pipe joint 7. When pressed by 6 and 8, the ink supply tube 15 is deformed in the radial direction and airtightly presses and holds the ink supply tube 15 from the outside to the inside.
このように構成された実施例において、いまフィルタ
本体に設けた結合パイプ１にインク供給用チューブ15を
結合するには、はじめに、第１図（ｂ）に示したよう
に、インク供給用チューブ15に管継手７とシールリング
13を嵌め込み、ついで、嵌込み孔２にインク供給用チュ
ーブ15を嵌込み、その先端に嵌合管部３を貫入させるよ
うにしてインク供給用チューブ15の先端を嵌込み孔２の
内奥まで挿入する。In the embodiment thus constructed, in order to connect the ink supply tube 15 to the connection pipe 1 provided in the filter body, first, as shown in FIG. 1 (b), the ink supply tube 15 is connected. Pipe fitting 7 and seal ring
13 is fitted, then the ink supply tube 15 is fitted into the fitting hole 2, and the fitting pipe portion 3 is inserted into the tip of the ink supply tube 15 so that the tip of the ink supply tube 15 reaches the inner depth of the fitting hole 2. insert.
この状態では、シールリング13に未だ押圧力が作用し
ていないため、インク供給用チューブ15は、先端に嵌入
した嵌合管部３によって正しく管状を保っている。した
がって、つぎに、この状態で結合パイプ１に管継手７を
螺合してゆくと、シールリング13は結合パイプ１先端の
押圧面６と管継手７内奥のテーパー状押圧面11との間で
内径方向へ押しつぶされ、その変形によって、第１図
（ａ）に見られるように、インク供給用チューブ15を縮
径させるようにこれを内方に向けて強く圧接する。In this state, since the pressing force has not yet been applied to the seal ring 13, the ink supply tube 15 is properly kept in a tubular shape by the fitting pipe portion 3 fitted at the tip. Therefore, next, when the pipe joint 7 is screwed into the joint pipe 1 in this state, the seal ring 13 is formed between the pressing surface 6 at the tip of the joint pipe 1 and the tapered pressing surface 11 inside the pipe joint 7. Then, the ink supply tube 15 is pressed inwardly so as to reduce the diameter of the ink supply tube 15, as shown in FIG. 1 (a).
しかしながら、上述したように、インク供給用チュー
ブ15は嵌合管部３によって内側から保形されているた
め、外側からこの押圧力を受けても完全に潰れることな
く、インクの通過に支障をきたさない程度に均一に縮径
して、結合パイプ１との間の気密を強固に保持しなが
ら、脱落が確実に抑えられる。However, as described above, since the ink supply tube 15 is shaped from the inside by the fitting pipe portion 3, even if the pressing force is applied from the outside, the ink supply tube 15 is not completely crushed and the passage of the ink is hindered. The diameter is uniformly reduced to the extent that it does not exist, and the airtightness between the joint pipe 1 and the joint pipe 1 is firmly maintained, and the dropout is reliably suppressed.
なお、以上はポリエチレン系のインク供給用チューブ
15を対象とする接続構造について本発明を説明したもの
であるが、金属製のインク供給用チューブ15にも本発明
を適用することができ、また、内側を耐インク性のポリ
エチレン、外側を空気透過率の低い塩化ビニリデンやナ
イロン等で形成した２層のインク供給用チューブにも適
用することができる。The above is the polyethylene ink supply tube.
Although the present invention has been described with reference to a connection structure for 15, the present invention can also be applied to a metal ink supply tube 15, the inside of which is ink-resistant polyethylene, and the outside of which is air. It can also be applied to a two-layer ink supply tube formed of vinylidene chloride, nylon or the like having a low transmittance.
（効果） 以上述べたように本発明によれば、インク供給用チュ
ーブを嵌込む結合パイプの先端面をシール部材の押圧面
とし、軸心部内方には、このチューブの肉厚に相当する
間隙を設けてチューブ内に嵌入する嵌合管部を突出形成
する一方、結合パイプと結合する継手部材には、チュー
ブが貫通する部分の内端面に、結合パイプ側の押圧面と
協同してリング状のシール部材を押圧変形させる押圧面
を形成したので、シール部材の圧縮変形による結合操作
に際しても、先端に嵌入させた嵌合管部により内側から
保形した接続パイプを均一に縮形させることが可能とな
って、インクの供給に支障をきたすことなくインク供給
用チューブを印字ヘッド本体等へ確実に接続させること
ができる。(Effects) As described above, according to the present invention, the tip end surface of the coupling pipe into which the ink supply tube is fitted is used as the pressing surface of the seal member, and a gap corresponding to the wall thickness of the tube is provided inside the shaft center portion. While the fitting pipe portion that fits into the tube is formed to project, the joint member that joins with the joining pipe has a ring shape in cooperation with the pushing surface on the joining pipe side at the inner end surface of the portion through which the tube penetrates. Since the pressing surface that press-deforms the seal member is formed, it is possible to uniformly reduce the shape of the connection pipe retained from the inside by the fitting pipe portion that is fitted at the tip even during the coupling operation by the compression deformation of the seal member. As a result, the ink supply tube can be surely connected to the print head main body or the like without causing any trouble in the ink supply.
第１図は、本発明の一実施例をなすインク供給用チュー
ブの接続機構を示したもので、（ａ）は結合させた状態
での断面図、（ｂ）は結合する過程での断面図、第２図
は従来のチューブ接続機構の一例を示した図である。 １……結合パイプ、２……嵌込み孔 ３……嵌合管部、６……シールリング押圧面 ７……管継手、８……シールリング押圧面 13……シールリング、15……インク供給用チューブ1A and 1B show a connection mechanism of an ink supply tube according to an embodiment of the present invention. FIG. 1A is a sectional view in a state of being joined, and FIG. 1B is a sectional view in a process of joining. 2 is a view showing an example of a conventional tube connecting mechanism. 1 ... Coupling pipe, 2 ... Fitting hole 3 ... Fitting pipe part, 6 ... Seal ring pressing surface 7 ... Pipe joint, 8 ... Seal ring pressing surface 13 ... Seal ring, 15 ... Ink Supply tube
Claims (1)
本体の少なくとも一方に、インク供給用チューブを嵌込
む結合パイプを設けて、該結合パイプの先端面をシール
部材の押圧面とし、軸心部内方には、インク供給用チュ
ーブの肉厚に相当する間隙を設けて該チューブ内に嵌入
する嵌合管部を突出形成する一方、上記結合パイプと結
合する継手部材には、上記インク供給用チューブが貫通
する部分の内端面に、上記押圧面と協同して弾性材より
なるリング状のシール部材を押圧変形させる押圧面を形
成したことを特徴とするインクジェット記録装置におけ
るインク供給用チューブの接続構造。1. A coupling pipe into which an ink supply tube is fitted is provided on at least one of the ink supply side body and the ink supply side body, and the tip end surface of the coupling pipe is used as a pressing surface of a seal member, and within the axial center portion. On the other hand, a fitting pipe portion to be fitted into the tube is formed so as to project with a gap corresponding to the thickness of the ink supply tube, while the joint member for coupling with the coupling pipe is provided with the ink supply tube. A connecting structure for an ink supply tube in an ink jet recording apparatus, characterized in that a pressing surface for pressing and deforming a ring-shaped seal member made of an elastic material is formed on an inner end surface of a portion through which the pressing surface cooperates. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61302483A JP2563784B2 (en) | 1986-12-18 | 1986-12-18 | Connection structure of ink supply tube in ink jet recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61302483A JP2563784B2 (en) | 1986-12-18 | 1986-12-18 | Connection structure of ink supply tube in ink jet recording apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63154355A JPS63154355A (en) | 1988-06-27 |
| JP2563784B2 true JP2563784B2 (en) | 1996-12-18 |
Family
ID=17909496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61302483A Expired - Lifetime JP2563784B2 (en) | 1986-12-18 | 1986-12-18 | Connection structure of ink supply tube in ink jet recording apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2563784B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080725A (en) * | 2001-09-11 | 2003-03-19 | Brother Ind Ltd | Ink jet recorder |
| US6886926B2 (en) | 2001-09-11 | 2005-05-03 | Brother Kogyo Kabushiki Kaisha | Ink-jet printer with ink path and method of forming the ink path |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0495678B1 (en) * | 1991-01-18 | 1997-05-21 | Canon Kabushiki Kaisha | Ink jet head unit, ink jet head cartridge and ink jet recording apparatus |
| EP0603902B1 (en) * | 1992-12-25 | 2000-05-24 | Canon Kabushiki Kaisha | Liquid jet-head and liquid jet apparatus having said liquid jet-head used therefor |
| WO1995009085A1 (en) * | 1993-09-29 | 1995-04-06 | Canon Kabushiki Kaisha | Ink jet head and ink jet apparatus provided with the same |
| JP5076268B2 (en) * | 2001-09-11 | 2012-11-21 | ブラザー工業株式会社 | Inkjet recording apparatus and method of manufacturing inkjet recording apparatus |
| JP6183455B2 (en) * | 2013-03-29 | 2017-08-23 | コニカミノルタ株式会社 | Image forming apparatus |
| WO2019187304A1 (en) * | 2018-03-27 | 2019-10-03 | 富士フイルム株式会社 | Discharge head connection structure and image forming device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE813695A (en) * | 1973-04-14 | 1974-10-14 | NEW PREGNANE ACID DERIVATIVES AND THEIR PREPARATION PROCESS |
-
1986
- 1986-12-18 JP JP61302483A patent/JP2563784B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080725A (en) * | 2001-09-11 | 2003-03-19 | Brother Ind Ltd | Ink jet recorder |
| US6886926B2 (en) | 2001-09-11 | 2005-05-03 | Brother Kogyo Kabushiki Kaisha | Ink-jet printer with ink path and method of forming the ink path |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63154355A (en) | 1988-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |