JPS61127358A - Ink jet head - Google Patents
Ink jet headInfo
- Publication number
- JPS61127358A JPS61127358A JP25032984A JP25032984A JPS61127358A JP S61127358 A JPS61127358 A JP S61127358A JP 25032984 A JP25032984 A JP 25032984A JP 25032984 A JP25032984 A JP 25032984A JP S61127358 A JPS61127358 A JP S61127358A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- elastic body
- elastic material
- head
- 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.)
- Pending
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
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
Abstract
Description
【発明の詳細な説明】
吸血分立
本発明は、オンデマンド型インクジェット記録装置に用
いて好適なインクジェット噴射ヘッドに関、する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inkjet ejection head suitable for use in an on-demand type inkjet recording apparatus.
従】」【石
第２図は、本出願人が先に提案したインクジェット噴射
ヘッド（特開昭５８−１６８５７５号公報）の−例を示
す断面図で、図中、１はノズル。Figure 2 is a sectional view showing an example of an inkjet ejection head (Japanese Patent Application Laid-Open No. 168575/1983) proposed earlier by the present applicant, and in the figure, 1 is a nozzle.
２はインク加圧室、３は振動ユニット ４は振動伝達棒
、５は弾性体、６はヘッド基体、７はヘッド上板、８は
インク供給口、９は支持体で、振動ユニント３の一端は
ヘッド上板７に、他端は振動伝達棒４を介して弾性体５
と接合固定されている。2 is an ink pressurizing chamber, 3 is a vibration unit, 4 is a vibration transmission rod, 5 is an elastic body, 6 is a head base, 7 is a head upper plate, 8 is an ink supply port, 9 is a support body, and one end of the vibration unit 3 is connected to the head upper plate 7, and the other end is connected to the elastic body 5 via the vibration transmission rod 4.
The joint is fixed.
また、振動ユニット３は図示しない駆動回路から信号電
圧を受は支持体９を支点として変位し、その変位を受け
て弾性体５がたわんでインク加圧室２の容積が縮小し、
インク加圧液室内の圧力が高まってノズルｌよりインク
が噴射する。而して、上記インクジェット噴射へンドは
、ヘッド基体のインク加圧液室の壁の一部に剛性体を貼
付は振動伝達棒等の間接部材を介して振動ユニットと接
わ°シし、振動ユニットの装着スペースを自由にとれる
ようにし、集積化、小型化を容易ならしめたものである
が、従来、ヘッド上坂、ヘッド基体は感光性ガラス、弾
性体はステンレススチイール、振動棒は金属棒等種々の
材質から成る部材で構成され、これらの部材を接合して
ヘッドを構成していたが、この中で、ヘッド上板、ヘッ
ド基板と弾性体との接合は不活性ガスあるいは真空中に
て高温、長時間熱処理により熱融着接合していた。また
、弾性体５と振動伝達棒４の接続も接着接合を行ってい
たが、ヘッド基体は感光性ガラス、金属弾性体の接合、
さらには振動伝達棒、振動ユニットとの接合と工程繁雑
で極めて量産性に欠ける欠点があった。Further, the vibration unit 3 receives a signal voltage from a drive circuit (not shown) and is displaced using the support 9 as a fulcrum, and in response to the displacement, the elastic body 5 is bent and the volume of the ink pressurizing chamber 2 is reduced.
The pressure inside the ink pressurized liquid chamber increases and ink is ejected from the nozzle l. The above-mentioned inkjet ejection head has a rigid body affixed to a part of the wall of the ink pressurized liquid chamber of the head base, and is connected to the vibration unit via an indirect member such as a vibration transmission rod, thereby reducing the vibration. This frees up space for mounting the unit, making it easier to integrate and downsize. Conventionally, the upper slope of the head, the head base were photosensitive glass, the elastic body was stainless steel, and the vibration rod was a metal rod. The head was made up of members made of various materials such as, and these members were joined together to form the head. Among these, the head upper plate, the head substrate, and the elastic body were joined by inert gas or vacuum. They were bonded by heat fusion using high-temperature, long-term heat treatment. In addition, the elastic body 5 and the vibration transmission rod 4 were connected by adhesive bonding, but the head base was made of photosensitive glass, metal elastic body bonded,
Furthermore, the process of joining the vibration transmission rod and vibration unit is complicated, making it extremely difficult to mass-produce.
貝ｍ
本発明は、上述のごとき実情に鑑みてなされたもので、
特に、インク加圧液室を小さくし、かつ、振動ユニット
の振動形態を片端支持若しくは両端支持として変位量を
太き（とれるようにし、もって、インク加圧液室の面積
を小さくし、ヘッドの集積化、若しくは小型化を容易な
らしめたインクジェット噴射ヘッドを提供することを目
的としてなされたものである。Shell m The present invention was made in view of the above-mentioned circumstances.
In particular, the ink pressurizing liquid chamber is made small, and the vibration form of the vibration unit is supported at one end or both ends to increase the amount of displacement. The purpose of this invention is to provide an inkjet ejection head that can be easily integrated or miniaturized.
１戒５
本発明は、上記目的を達成するために、インク加圧液室
の壁の少なくとも一部を弾性体で形成するとともに振動
ユニットを前記弾性体の拡がり方向面と同一でない面で
支持し、前記インク加圧液室の容積を前記振動ユニット
にて変化せしめてインク粒滴を噴射させるインクシエン
ド噴射へ・ノドにおいて、前記振動ユニットの振動を前
記弾性体に伝達する振動伝達棒を前記弾性体と一体成形
し前記インク加圧液室の壁の少なくとも一部に配置せし
めることを特徴としたものである。以下、本発明の実施
例に基づいて説明する。Precept 5 In order to achieve the above object, the present invention includes forming at least a part of the wall of the ink pressurizing liquid chamber with an elastic body, and supporting the vibration unit on a surface that is not the same as the plane in the spreading direction of the elastic body. , to ink end injection in which the volume of the ink pressurized liquid chamber is changed by the vibration unit and ink droplets are jetted; at the throat, a vibration transmission rod that transmits the vibration of the vibration unit to the elastic body is connected to the It is characterized in that it is integrally molded with an elastic body and disposed on at least a part of the wall of the ink pressurized liquid chamber. Hereinafter, the present invention will be explained based on examples.
第１図は、本発明の一実施例を示す断面構成図で、図中
、第２図と同様の作用をする部分は第２図と同一の参照
番号が付しである。而して、ヘッド基体、上板等の構成
は従来技術と同様であり、本発明においては、振動伝達
棒４と弾性体５を例えばモールド等により一体成形して
振動伝達棒付弾性体１０とし、該振動伝達棒付弾性体Ｉ
Ｏをヘッド上板に接着接合したものである。FIG. 1 is a cross-sectional configuration diagram showing an embodiment of the present invention. In the figure, parts having the same functions as those in FIG. 2 are given the same reference numerals as in FIG. 2. The structure of the head base, upper plate, etc. is the same as that of the prior art, and in the present invention, the vibration transmission rod 4 and the elastic body 5 are integrally molded, for example, by molding etc. to form the elastic body 10 with the vibration transmission rod. , the elastic body I with the vibration transmission rod
O is adhesively bonded to the head upper plate.
着果
以上の説明から明らかなように、本発明によると、
（１）９弾性体５と振動伝達棒４を一体成形したので接
合箇所が減り、工数低減に寄与する。Results As is clear from the above description, according to the present invention: (1) Since the elastic body 5 and the vibration transmission rod 4 are integrally molded, the number of joints is reduced, contributing to a reduction in the number of man-hours.
（２）、接合箇所が減るので接合信頼性が向上する。(2) Since the number of joints is reduced, joint reliability is improved.
（３）、振動伝達棒付弾性体１０を後に接合出来るので
ヘッド基体、上板の接合大気中加熱により熱融着接合出
来る（感光性ガラスヘッドの場合）。(3) Since the elastic body 10 with the vibration transmission rod can be joined later, the head base and the upper plate can be joined by heat fusion by heating in the atmosphere (in the case of a photosensitive glass head).
（４）、モールドにより振動伝達棒付弾性体を成形する
ので低ヤング率（金属と比し）となり、さらに小型液窒
化、低駆動電圧化が可能なインクジェット噴射ヘッドを
提供することができる。(4) Since the elastic body with the vibration transmission rod is formed by molding, it has a low Young's modulus (compared to metal), and furthermore, it is possible to provide an inkjet ejection head that is capable of compact liquid nitriding and low driving voltage.
第１図は、本発明によるインクジェット噴射ヘッドの一
実施例を示す断面図、第２図は、従来のインクジェット
噴射ヘッドの一例を示す断面図である。
１・・・ノズル、２・・・インク加圧室、３・・・振動
ユニット ４・・・振動伝達棒、５・・・弾性体、６・
・・ヘッド基体、７・・・ヘッド上板９８・・・インク
供給口、９・・・支持体、１０・・・振動伝達棒付弾性
体。FIG. 1 is a sectional view showing an embodiment of an inkjet ejection head according to the present invention, and FIG. 2 is a sectional view showing an example of a conventional inkjet ejection head. DESCRIPTION OF SYMBOLS 1... Nozzle, 2... Ink pressurization chamber, 3... Vibration unit 4... Vibration transmission rod, 5... Elastic body, 6...
... Head base, 7... Head upper plate 98... Ink supply port, 9... Support body, 10... Elastic body with vibration transmission rod.
Claims (1)
るとともに振動ユニットを前記弾性体の拡がり方向面と
同一でない面で支持し、前記インク加圧液室の容積を前
記振動ユニットにて変化せしめてインク粒滴を噴射させ
るインクジェット噴射ヘッドにおいて、前記振動ユニッ
トの振動を前記弾性体に伝達する振動伝達棒を前記弾性
体と一体成形し前記インク加圧液室の壁の少なくとも一
部に配置せしめたことを特徴とするインクジェット噴射
ヘッド。At least a part of the wall of the ink pressurizing liquid chamber is formed of an elastic body, and a vibration unit is supported on a surface that is not the same as the spreading direction surface of the elastic body, and the volume of the ink pressurizing liquid chamber is controlled by the vibrating unit. In the inkjet ejection head that ejects ink droplets by changing the vibration, a vibration transmission rod for transmitting the vibration of the vibration unit to the elastic body is integrally molded with the elastic body and is formed on at least a part of the wall of the ink pressurized liquid chamber. An inkjet ejection head characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25032984A JPS61127358A (en) | 1984-11-27 | 1984-11-27 | Ink jet head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25032984A JPS61127358A (en) | 1984-11-27 | 1984-11-27 | Ink jet head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61127358A true JPS61127358A (en) | 1986-06-14 |
Family
ID=17206288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25032984A Pending JPS61127358A (en) | 1984-11-27 | 1984-11-27 | Ink jet head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61127358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992000849A1 (en) * | 1990-07-10 | 1992-01-23 | Fujitsu Limited | Printing head |
| JP2717025B2 (en) * | 1990-07-10 | 1998-02-18 | 富士通株式会社 | Print head |
-
1984
- 1984-11-27 JP JP25032984A patent/JPS61127358A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992000849A1 (en) * | 1990-07-10 | 1992-01-23 | Fujitsu Limited | Printing head |
| US5610643A (en) * | 1990-07-10 | 1997-03-11 | Fujitsu, Ltd. | Ink jet printing head having a detachable pressure chamber |
| JP2717025B2 (en) * | 1990-07-10 | 1998-02-18 | 富士通株式会社 | Print head |
| US6132035A (en) * | 1990-07-10 | 2000-10-17 | Fujitsu Limited | Printing head having resiliently supported vibration plate |
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