JPH02131950A - Printing head - Google Patents
Printing headInfo
- Publication number
- JPH02131950A JPH02131950A JP28572688A JP28572688A JPH02131950A JP H02131950 A JPH02131950 A JP H02131950A JP 28572688 A JP28572688 A JP 28572688A JP 28572688 A JP28572688 A JP 28572688A JP H02131950 A JPH02131950 A JP H02131950A
- Authority
- JP
- Japan
- Prior art keywords
- displacement
- horn
- elastic member
- printing
- shaped elastic
- 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
- 238000007639 printing Methods 0.000 title claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 claims abstract description 33
- 230000001902 propagating effect Effects 0.000 claims description 4
- 230000000644 propagated effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔｛既 要〕
変位発生用の電歪素子等の駆動素子と、先端にワイヤ等
の印字部材を有し前記駆動素子の変位の伝達を受けるホ
ーン状弾性部材とを備えたワイヤドットプリンタ用印字
ヘッドに関し、
大きな変位拡大率が得られるようにすることを目的とし
、
変位発生用の駆動素子と、先端に印字部材を有し前記駆
動素子の変位の伝達を受けるホーン状弾性部材とを備え
、前記ホーン状弾性部材に伝達される変位が該ホーン状
弾性部材内を伝搬する際に拡大されることを利用して前
記印字部材に印字を行わせる印字ヘッドにおいて、前記
駆動素子と前記ホーン状弾性部材の間に、前記駆動素子
の変位を一段拡大して前記ホーン状弾性部材に伝達する
拡大レバーを設けた構成とする。[Detailed description of the invention] [{Already required] A driving element such as an electrostrictive element for generating displacement, and a horn-shaped elastic member having a printing member such as a wire at the tip and receiving the displacement of the driving element. In order to obtain a large displacement magnification ratio, the wire dot printer print head is equipped with a drive element for generating displacement, and a horn having a printing member at the tip and receiving the displacement of the drive element. A print head comprising a horn-shaped elastic member and causing the printing member to perform printing by utilizing the fact that the displacement transmitted to the horn-shaped elastic member is expanded when propagating within the horn-shaped elastic member. An enlargement lever is provided between the drive element and the horn-shaped elastic member to further enlarge the displacement of the drive element and transmit it to the horn-shaped elastic member.
本発明は、変位発生用の電歪素子等の駆動素子と、先端
にワイヤ等の印字部材を有し前記駆動素子の変位の伝達
を受けるホーン状弾性部材とを備えたワイヤドットプリ
ンタ用印字ヘッドに関する。The present invention provides a printing head for a wire dot printer that includes a driving element such as an electrostrictive element for generating displacement, and a horn-shaped elastic member having a printing member such as a wire at the tip and receiving the displacement of the driving element. Regarding.
近時、ワイヤドットプリンタの高速化要求に伴い、電磁
方式に代わって、電歪素子等を用いた高速作動印字ヘッ
ドが求められている。この種の電歪素子としては、例え
ば１９８４年３月１２日発行の日経メカニカル、第９２
頁に示されたように、片側の表面に内部電極となる金属
ペースト膜が形成された複数枚の圧電セラミックスのグ
リーンシ−トを積層し、これを焼成して得られたものが
使用される。In recent years, with the demand for higher speed wire dot printers, there has been a demand for high-speed operation print heads that use electrostrictive elements or the like instead of electromagnetic systems. As this type of electrostrictive element, for example, Nikkei Mechanical, 92nd issue, published March 12, 1984,
As shown on the page, the material obtained by laminating multiple piezoelectric ceramic green sheets with a metal paste film formed on one surface that will serve as an internal electrode and firing them is used. .
第２図は従来考えられている駆動素子とホーン状弾性部
材とを備えた印字ヘソ１′の構造を示す側面図で．，図
中、１は駆動素子（電歪素子）、２はホーン状弾性部材
である。FIG. 2 is a side view showing the structure of a printing press 1' which is equipped with a drive element and a horn-shaped elastic member, which has been conventionally considered. , in the figure, 1 is a driving element (electrostrictive element), and 2 is a horn-shaped elastic member.
駆動素子１は基部が固定されている。The drive element 1 has a fixed base.
ホーン状弾性部材２は、ゴム等の弾性体で図示の形状に
形成され、基部が駆動素子１の先端に連結されている。The horn-shaped elastic member 2 is made of an elastic material such as rubber and has the shape shown in the figure, and has a base connected to the tip of the drive element 1.
このホーン状弾性体２の先端には印字部材（ワイヤ）３
が取り付けられている。A printing member (wire) 3 is attached to the tip of this horn-shaped elastic body 2.
is installed.
このような構成の印字ヘッドにより印字を行う際には、
駆動素子１の電極間に所定波形の電圧を印加して充電す
る。これにより、駆動素子Ｉには上下方向のパルス状変
位が生じ、該パルス状変位は、ホーン状弾性部材２の広
断面側端である基部に伝達されて該ホーン状弾性部材２
内を伝搬する間に、断面積が小さくなるにつれて（ａ）
，（ｂ），（ｃ）， （ｄ）に示すように増幅され、
この増幅された小断面側先端の拡大変位によって、印字
部材３による印字が行われる。なお、電極に対する電圧
印加は印字完了直前に停止して放電が開始され、印字を
完了した印字部材３は、駆動素子１，ホーン状弾性部材
２とともにもとの状態に復帰する。そして、駆動素子１
への充放電を繰り返すことにより所定の印字が行われる
。When printing with a print head configured like this,
A voltage of a predetermined waveform is applied between the electrodes of the drive element 1 to charge it. As a result, a pulse-like displacement occurs in the vertical direction in the driving element I, and the pulse-like displacement is transmitted to the base, which is the wide cross-section side end of the horn-shaped elastic member 2, and
While propagating inside, as the cross-sectional area becomes smaller (a)
, (b), (c), (d),
Printing by the printing member 3 is performed by this amplified enlarged displacement of the small cross-section side tip. It should be noted that the voltage application to the electrodes is stopped immediately before the completion of printing, and discharge is started, and the printing member 3, which has completed printing, returns to its original state together with the driving element 1 and the horn-shaped elastic member 2. And drive element 1
By repeating charging and discharging, predetermined printing is performed.
しかしながら、この方式では、大きな印字部材ストロー
クが要求される場合（複数枚の用紙に印字する場合等）
、充分な印字ストロークが得られないことがあった。However, with this method, when a large printing member stroke is required (such as when printing on multiple sheets of paper)
, it was sometimes not possible to obtain a sufficient printing stroke.
本発明は、大きな変位拡大率を得ることのできる印字ヘ
ッドを提供することを目的とするものである。An object of the present invention is to provide a print head that can obtain a large displacement magnification.
上述の目的を達成するため、本発明では、変位発生用の
駆動素子と、先端に印字部材を有し前記駆動素子の変位
の伝達を受けるホーン状弾性部材とを備え、前記ホーン
状弾性部材に伝達された変位が該ホーン状弾性部材内を
伝搬する際に拡大されることを利用して前記印字部材に
印字を行わせる印字ヘッドにおいて、前記駆動素子と前
記ホーン状弾性部材の間に、前記駆動素子の変位を一段
拡大して前記ホーン状弾性部材に伝達する拡大レハーを
設けた構成とする。In order to achieve the above object, the present invention includes a drive element for generating displacement, and a horn-shaped elastic member having a printing member at the tip and receiving the displacement of the drive element, and the horn-shaped elastic member In the print head that prints on the printing member by utilizing the fact that the transmitted displacement is expanded when propagating within the horn-shaped elastic member, the The structure is such that an enlarged lever is provided for further enlarging the displacement of the drive element and transmitting it to the horn-shaped elastic member.
拡大レバーにより拡大されたパルス状変位は、ホーン状
弾性部材の基部（広断面端）に伝達され、該ホーン状弾
性部材内を上端（小断面端）に向け伝搬するに従ってさ
らに変位増幅が行われる。The pulsed displacement expanded by the expansion lever is transmitted to the base (wide cross-section end) of the horn-shaped elastic member, and the displacement is further amplified as it propagates within the horn-shaped elastic member toward the upper end (small cross-section end). .
従って、大きな変位拡大率が得られ、複数枚印字等を良
品質で行うことが可能になる。Therefore, a large displacement magnification ratio can be obtained, and it is possible to perform printing on multiple sheets with good quality.
以下、第１図に関連して本発明の実施例を説明する。 Embodiments of the present invention will be described below with reference to FIG.
第１図は本発明に係る印字ヘッドの構造を示す側面図で
、図中、ｌ１は拡大レバーである。FIG. 1 is a side view showing the structure of a print head according to the present invention, and in the figure, l1 is an enlargement lever.
拡大レバー１ｌは基部が枠体１２に連結され、印字部材
３を備えたホーン状弾性部材２の基部はこの拡大レバー
１１の先端に固定されている。駆動素子ｌは、下端が枠
体ｌ２に固定され、先端が拡大レバー１１の基部付近に
連結されている。The base of the enlarging lever 1l is connected to the frame 12, and the base of the horn-shaped elastic member 2 provided with the printing member 3 is fixed to the tip of the enlarging lever 11. The lower end of the drive element 1 is fixed to the frame 12, and the tip is connected to the vicinity of the base of the enlargement lever 11.
印字に際しては、駆動素子１に充電することによって、
該駆動素子１と拡大レハー１１の連結部にパルス状変位
が付与される。このパルス状変位は、拡大レバー１１の
レバー比によって、（ａ）− （ｅ）のように拡大され
てホーン状弾性部材２の基部に伝達され、該ホーン状弾
性部材２内を上端の小断面積端に向け伝搬するに従って
（ｅ）−（ｆ）のように増幅される。When printing, by charging the drive element 1,
A pulse-like displacement is applied to the connecting portion between the driving element 1 and the enlarged rehear 11. This pulse-like displacement is enlarged as shown in (a) to (e) by the lever ratio of the enlargement lever 11 and transmitted to the base of the horn-shaped elastic member 2, and the inside of the horn-shaped elastic member 2 is cut into a small section at the upper end. As it propagates toward the edge of the area, it is amplified as shown in (e) to (f).
従って、印字部材３には大きな変位拡大率が得られ、複
数枚印字等を良品質で行うことが可能になる。Therefore, a large displacement magnification ratio can be obtained for the printing member 3, and it becomes possible to perform printing on multiple sheets with good quality.
上述の説明では駆動素子を電歪素子としたが、駆動素子
を磁歪素子としても同様の効果が得られる。In the above description, the driving element is an electrostrictive element, but the same effect can be obtained even if the driving element is a magnetostrictive element.
以上述べたように、本発明によれば、比較的簡単な構造
で大きな変位拡大率を得ることができ、複数枚印字等が
可能になる。As described above, according to the present invention, a large displacement magnification ratio can be obtained with a relatively simple structure, and printing on multiple sheets becomes possible.
第１図は本発明の実施例の印字ヘノドの構造を示す側面
図、
第２図は従来の印字ヘッドの構造を示す側面図で、
図中、
１は駆動素子（電歪素子）、
２はホーン状弾性部材、
３は印字部材、
１ｌは拡大レバーである。
本発明の実施例の
印字ヘッ≦の構造を示す側面図
第１図FIG. 1 is a side view showing the structure of a printing head according to an embodiment of the present invention, and FIG. 2 is a side view showing the structure of a conventional print head. In the figure, 1 is a driving element (electrostrictive element), 2 is a A horn-shaped elastic member, 3 a printing member, and 1l an enlargement lever. FIG. 1 is a side view showing the structure of the print head ≦ of the embodiment of the present invention.
Claims (1)
位の伝達を受けるホーン状弾性部材（２）とを備え、 前記ホーン状弾性部材（２）に伝達された変位が該ホー
ン状弾性部材（２）内を伝搬する際に拡大されることを
利用して前記印字部材（３）に印字を行わせる印字ヘッ
ドにおいて、 前記駆動素子（１）と前記ホーン状弾性部材（２）の間
に、前記駆動素子（１）の変位を一段拡大して前記ホー
ン状弾性部材（２）に伝達する拡大レバー（１１）を設
けたことを特徴とする印字ヘッド。[Scope of Claims] A drive element (1) for generating displacement, and a horn-shaped elastic member (2) having a printing member (3) at its tip and receiving the displacement of the drive element (1). , a print head that prints on the printing member (3) by utilizing the fact that the displacement transmitted to the horn-shaped elastic member (2) is expanded when propagating inside the horn-shaped elastic member (2); An enlargement lever (11) is provided between the drive element (1) and the horn-shaped elastic member (2) to further enlarge the displacement of the drive element (1) and transmit it to the horn-shaped elastic member (2). A print head characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28572688A JPH02131950A (en) | 1988-11-14 | 1988-11-14 | Printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28572688A JPH02131950A (en) | 1988-11-14 | 1988-11-14 | Printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02131950A true JPH02131950A (en) | 1990-05-21 |
Family
ID=17695242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28572688A Pending JPH02131950A (en) | 1988-11-14 | 1988-11-14 | Printing head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02131950A (en) |
-
1988
- 1988-11-14 JP JP28572688A patent/JPH02131950A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0337429B1 (en) | Ink jet head | |
| EP1199173B1 (en) | Ink jet recording apparatus and its manufacturing method | |
| GB2098134A (en) | Method of manufacturing a pumping device for a jet nozzle duct | |
| US9925760B2 (en) | Printing head having printing blade with disruptions and a vibration unit | |
| CA2132641C (en) | High density ink jet printhead with double-u channel actuator | |
| US6036302A (en) | Inkjet recording apparatus | |
| US5548313A (en) | Inkjet printing head | |
| US4901092A (en) | Ink jet recording head using a piezoelectric element having an asymmetrical electric field applied thereto | |
| EP0536637B1 (en) | Piezo-electric device type actuator | |
| DE60106522T2 (en) | Piezoelectric vibrator unit | |
| JP2695418B2 (en) | On-demand type inkjet head | |
| JPH02131950A (en) | Printing head | |
| US4417255A (en) | Ink-jet printer | |
| JP2668421B2 (en) | Print head | |
| JPH02131952A (en) | Printing head | |
| US6203144B1 (en) | Ink jetting device having metal electrodes with minimal electrical connections | |
| JPH0364313B2 (en) | ||
| JP2692228B2 (en) | Ink jet recording device | |
| JPS6389353A (en) | Printing head | |
| JP2608463B2 (en) | Print head | |
| JPH02165957A (en) | Printer head | |
| JPH05147237A (en) | Print head | |
| JPH03173650A (en) | Ink jet printing head | |
| JPH031954A (en) | Impact printer | |
| JP2639818B2 (en) | Printhead actuator |