JPS5981181A - Printing head for electrostrictive-type wire dot printer - Google Patents
Printing head for electrostrictive-type wire dot printerInfo
- Publication number
- JPS5981181A JPS5981181A JP19214382A JP19214382A JPS5981181A JP S5981181 A JPS5981181 A JP S5981181A JP 19214382 A JP19214382 A JP 19214382A JP 19214382 A JP19214382 A JP 19214382A JP S5981181 A JPS5981181 A JP S5981181A
- Authority
- JP
- Japan
- Prior art keywords
- electrostrictive
- wire
- lever
- head
- electrostrictive element
- 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 abstract description 16
- 239000000463 material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000005284 excitation Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- UNPLRYRWJLTVAE-UHFFFAOYSA-N Cloperastine hydrochloride Chemical compound Cl.C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)OCCN1CCCCC1 UNPLRYRWJLTVAE-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- VJPLIHZPOJDHLB-UHFFFAOYSA-N lead titanium Chemical compound [Ti].[Pb] VJPLIHZPOJDHLB-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
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
- B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
- B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
- B41J2/27—Actuators for print wires
- B41J2/295—Actuators for print wires using piezoelectric elements
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
本鰭明は、電歪素子を用いたインパクト形ワイヤートッ
ドプリンタは普通紙に同時複写がとれ、漢字、図形など
記録の融通性に優れ、低価格であるといった長所がある
ため広<章及されている。[Detailed Description of the Invention] This impact-type wire tod printer using an electrostrictive element has the advantages of being able to make simultaneous copies on plain paper, having excellent flexibility in recording kanji and figures, and being inexpensive. Because of this, it has been widely mentioned.
最近、ワイヤドツトプリンタの一つの方向として、マイ
クロコンピュータの記憶容量の増大、計算時間の短縮と
いった高性能化に伴い、高速化が図られている。Recently, one direction in the development of wire dot printers is to increase the speed of the printers as a result of improvements in performance such as an increase in the storage capacity of microcomputers and a reduction in calculation time.
従来ワイヤード、トプリンタの印字方式は電磁駆動式が
主流であるが駆動電力が太き(、プリンタの高速化を行
う場合渦電流が発生し温度上昇が非常に大きくなり隘路
となっていた。Conventionally, the mainstream printing method for wired printers is the electromagnetic drive type, but the drive power is large (and when trying to increase the speed of the printer, eddy currents are generated and the temperature rise is extremely large, creating a bottleneck.
これに対し、電歪素子を用いたプリンタでは原理的に電
磁式の欠点を一掃することができ注目されている。しか
しながら、いずれの方式にせよ関連に印字するためには
飛翔したワイヤーが記録媒体を介してプラテンを衝打し
復元すると同時に次の飛翔を開始する必要があり、ワイ
ヤーが記録媒体に衝突し停止するときの残留振動を極小
に抑えることが重要となる。In contrast, printers using electrostrictive elements are attracting attention because they can, in principle, eliminate the drawbacks of the electromagnetic type. However, in order to print in relation to either method, the flying wire must hit the platen through the recording medium and at the same time start the next flight, and the wire will collide with the recording medium and stop. It is important to keep the residual vibration to a minimum.
即ち、2回目以降の飛翔の開始に際し゛(1、残留振動
が太さければ大きいほど、前回の飛翔のイυ元によるプ
リンタヘッドの運動エネルギー、歪エネルギーが重畳さ
れるために、ワイヤーの運動エネルギーが大きくなり、
2回目以降の方が印字濃度が高くなり均質な印字が得ら
れなくなるわけである。In other words, at the start of the second flight (1), the thicker the residual vibration, the more the kinetic energy and strain energy of the printer head due to the force of the previous flight are superimposed; Kinetic energy increases,
After the second printing, the print density becomes higher and it becomes impossible to obtain a uniform print.
以下、従来例を図面に従って詳細に説、明する。Hereinafter, a conventional example will be described in detail with reference to the drawings.
第1図は、従来の電歪素子を用いたインパクト形ワイヤ
ートッドプリンタ用ヘッドを示す。すなわち電歪素子1
01と該電歪素子にヒンジ104.105を介して接続
し、かつ互いに異なる向きに回転する第1のレバー10
7及び第2のレバー108と該″電歪素子を保持し、か
つ第1及び第2のレバー107゜108とヒンジ103
.106を介し、て接続しているベース102と、年1
及び第2のレバーにヒンジ110,111を介して接続
しており、しかもアーム部113を有する?A< 3の
レバー112.を具備し、第2のレバーとベースにはそ
れぞれ第1のレバー、アームに対するストッパーが形成
されている。第1図に示したプリンタへ、ドは、電歪素
子101に、電圧が印加さjl、ると、電歪素子101
は伸び、ヒンジ104,105が圧縮され、ヒンジ10
3,106が伸長される。この結果、@ルバー107.
第2レバー108がそれぞイ1異なった向きに回転する
。さらに該2つのレバーの動きがヒンジ110と111
を介して第3レバーとこれに接続するアーム113に伝
わる。そしてアーム113に接続するワイヤー114が
矢印の方向に直進し、リボン1151紙116.プラテ
ン117を衝打し印字が行われる。この衝打の反発力と
ヒンジの復元力によりワイヤー114は元の位置にもど
り1回の往復運動が完了する。FIG. 1 shows a head for an impact type wire tod printer using a conventional electrostrictive element. That is, electrostrictive element 1
01 and the electrostrictive element via hinges 104 and 105, and rotates in different directions.
7 and the second lever 108 and the electrostrictive element, and the first and second lever 107 and the hinge 103.
.. 106 and the base 102 connected through
and is connected to the second lever via hinges 110, 111, and has an arm portion 113? A<3 lever 112. A stopper for the first lever and the arm is formed on the second lever and the base, respectively. In the printer shown in FIG. 1, when a voltage is applied to the electrostrictive element 101, the electrostrictive element 101
extends, hinges 104 and 105 are compressed, and hinge 10
3,106 are expanded. As a result, @Ruba107.
The second levers 108 rotate in different directions. Furthermore, the movement of the two levers is caused by hinges 110 and 111.
is transmitted to the third lever and the arm 113 connected thereto. Then, the wire 114 connected to the arm 113 goes straight in the direction of the arrow, and the ribbon 1151 paper 116. Printing is performed by striking the platen 117. Due to the repulsive force of this impact and the restoring force of the hinge, the wire 114 returns to its original position, completing one reciprocating movement.
一般に、ワイヤーが元の位置に戻ったところで印加電圧
を零にするが、このときヘッド自身の歪エネルギーが完
全に零になっていないため残留振動が顕著にみられる。Generally, when the wire returns to its original position, the applied voltage is reduced to zero, but at this time, the strain energy of the head itself has not been completely reduced to zero, so residual vibrations are noticeable.
この様子を第2図(イ)に実線で示す。変位がゼロの点
を過ぎて大きな残留振動力5見られる。第2図で用いた
ヘッドは第1図に示した印字ヘッドであり、ワイヤー先
端とリボンまでの距40.40++m 、電歪素子はチ
タン・ジルコン酸鉛系材料でつくられたS効果積層セラ
ミック械動子(4黄3++m+、奥行2朋、長さ18咽
)を用い、へラドの変位拡大率は42倍である。第2図
(ロ)は電歪素子101の駆動電圧波形を示し、ワイヤ
ーが元の位置に復元した時間0.48m s e cで
電圧を零としている。This state is shown by the solid line in FIG. 2(a). A large residual vibration force 5 is seen past the point where the displacement is zero. The head used in Figure 2 is the print head shown in Figure 1, the distance from the wire tip to the ribbon is 40.40++ m, and the electrostrictive element is an S-effect multilayer ceramic made of titanium-lead zirconate-based materials. Using a mover (4 yellows 3++m+, depth 2mm, length 18mm), Herad's displacement magnification rate is 42 times. FIG. 2(b) shows the driving voltage waveform of the electrostrictive element 101, and the voltage is zero at a time of 0.48 msec when the wire is restored to its original position.
さらに、第1図に示したプリンタへ、ドにおいて、ワイ
ヤーの1回の往復運動が完了した後、つづけて2回目の
印字を行った場合のワイヤー先端変位及びリボン、紙、
プラテンに加わる衝撃力特性を第3図(イ)の実線に示
す。また駆動電圧波形を第3図(ロ)に示す。このよう
に、プリンタヘッドにおいてワイヤーの残留振動を抑圧
する対策を何ら講じない場合には、1回目の印字の衝撃
力(fm)に比べ2回目の印字の方が遥かに大きな衝撃
力が与えられ、またワイヤーの残留振動も第2図の1回
だけの印字に比べ極めて大きなものになっている。本発
明の目的はこれらの欠点を改善し、残留振動を小さく抑
えることのできる電歪式ワイヤートッドプリンタ用印字
ヘッドを提供するものである。すなわち本発明は電歪素
子と該電歪素子にヒンジを介して接続し、かつ互いに異
なる向きに回転する第1のレバー及び第2のレバーと該
電歪素子を保持し、かつ第1及び第2のレバーとヒンジ
を介して接続しているベースと、第1及び第2のレバー
にヒンジを介して接続しており、しかもアーム部を有す
る第3のレバーを具備してなる電歪式ワイヤートッドプ
リンタ用ヘッドにおいてベース部分に電磁石を形成した
ことを特徴とする電歪式ワイヤード、トプリンタ用印字
ヘッドである。Furthermore, in the printer shown in FIG. 1, the displacement of the wire tip and the ribbon, paper,
The characteristics of the impact force applied to the platen are shown by the solid line in Fig. 3 (a). Further, the driving voltage waveform is shown in FIG. 3 (b). In this way, if no measures are taken to suppress the residual vibration of the wire in the printer head, a much larger impact force (fm) will be applied during the second printing compared to the impact force (fm) during the first printing. Also, the residual vibration of the wire is extremely large compared to the one-time printing shown in FIG. SUMMARY OF THE INVENTION An object of the present invention is to provide a print head for an electrostrictive wire tod printer that can overcome these drawbacks and suppress residual vibrations to a small level. That is, the present invention includes an electrostrictive element, a first lever and a second lever that are connected to the electrostrictive element via a hinge, and rotate in different directions from each other, and that hold the electrostrictive element; An electrostrictive wire comprising: a base connected to a second lever via a hinge; and a third lever connected to the first and second levers via a hinge and further having an arm portion. This is an electrostrictive wired print head for a tod printer, characterized in that an electromagnet is formed in the base portion of the tod printer head.
本発明の一実施例として、第4図にベース部分に電磁石
401,402を形成した電歪式プリンタヘッドを示す
。本発明の電磁石が働くためには、少な(とも第3レバ
ーのアーム部分113が磁石により引き寄せられる性質
を有する材質(例えば鋼)である必要がある。第4図で
はベース102に電磁石401.402が形成されてい
る。また本実施例ではベース材質を鋼製とした。As an embodiment of the present invention, FIG. 4 shows an electrostrictive printer head in which electromagnets 401 and 402 are formed on the base portion. In order for the electromagnet of the present invention to work, it is necessary that the arm portion 113 of the third lever be made of a material (such as steel) that has the property of being attracted by a magnet. In FIG. In this embodiment, the base material is made of steel.
まず1回のワイヤーの往復運動に関して説明する。電歪
素子101の駆動電圧波形は第2図(O)に示すように
同様にワイヤーが復元する0、48m5ecで電圧を零
とした短形波となっている。同時に、ワイヤーが復元す
る0、48m5ec伺近において、電磁石を励磁する。First, one reciprocating movement of the wire will be explained. As shown in FIG. 2(O), the drive voltage waveform of the electrostrictive element 101 is a rectangular wave in which the voltage is zero at 0.48 m5ec when the wire is similarly restored. At the same time, the electromagnet is energized near 0.48m5ec, where the wire is restored.
励磁″電圧波形を53.2171(ハ)に示す、このと
きのワイヤーの先端変位を第2図(イ)に点酬で示す。The excitation voltage waveform is shown in 53.2171 (c), and the displacement of the tip of the wire at this time is shown in points in FIG. 2 (a).
笑線に比べて著しく残留振動が抑圧されていることがわ
かる。即ぢ、本発明の原理はワイヤーが印字媒体に衝突
しもとの位置に戻ってきたところで電磁石401,40
2を励磁し、強制的に第2レバーアーム113をストッ
パ119に吸引させてやり残留振1・hを極小にしよう
とするものである。次に本発明に従った2回連続衝打の
場合におけるワイヤーの先端変位及び衝撃力の時間応答
を第5図0)に示す。このときの駆動電圧波形、励磁電
圧波形をへS5図仲)、(遭こそれぞれ示す。電歪素子
の駆1、jTl+ 電圧波形は413図←)と同じであ
る。励磁電圧に門しては、同様にワイヤーかもとの位置
にもどってきたところで電磁石401.402を励磁し
、強制的に第2レバーアーム113をストッパ119に
吸引させてやり残留振動を抑圧したのち、2回目の飛翔
を行うため、1ポ動電圧を印加するときに励磁電圧を零
とする。第5図(イ)は残留振動抑圧に対して阿ら対策
を講じていない第3図(イ)の特性に比べ、残留振動が
十分に抑圧され、1回目及び2回目の印字のさいの衝撃
力も同等となっていることは明らかである。即ち、本発
明ではワイヤーの残留振動が極小に抑えられ、2回目、
3回目と続けてワイヤーが飛翔を始めるにあたり、電磁
石の励磁電圧は零とするので、ワイヤーの飛翔に関し電
(iiF、石は何ら障害にならない。It can be seen that the residual vibration is significantly suppressed compared to the smile line. The principle of the present invention is that when the wire collides with the printing medium and returns to its original position, the electromagnets 401 and 40
2 is excited, and the second lever arm 113 is forcibly attracted to the stopper 119, thereby minimizing the residual vibration 1.h. Next, the time response of the wire tip displacement and impact force in the case of two consecutive impacts according to the present invention is shown in FIG. 50). The drive voltage waveforms and excitation voltage waveforms at this time are shown in Figure S5 and (Figure 413), respectively.The drive voltage waveforms of the electrostrictive element are the same as in Figure 413. When the excitation voltage is applied, the electromagnets 401 and 402 are similarly excited when the wire returns to its original position, and the second lever arm 113 is forcibly attracted to the stopper 119 to suppress residual vibration. , In order to perform the second flight, the excitation voltage is set to zero when applying the 1-pot dynamic voltage. Figure 5 (a) shows that the residual vibration is sufficiently suppressed compared to the characteristic of Figure 3 (a) where no measures have been taken to suppress residual vibration, and the impact during the first and second printing is It is clear that the power is also the same. That is, in the present invention, the residual vibration of the wire is suppressed to a minimum, and the second
When the wire starts flying for the third time in a row, the excitation voltage of the electromagnet is set to zero, so the electricity (iiF, stone) does not pose any obstacle to the wire's flight.
以上詳述したように本発明に従えば、ワイヤーの残留振
動が抑圧され、次のワイヤーの飛翔に関して何ら障害と
なるものがないため理想的なワイヤーの運動が達成され
る。したがって均一な衝撃力が得られる結果、印字′渉
題が均質な高速印字電歪式ワイヤートッドプリンタを得
ることができる。As described in detail above, according to the present invention, the residual vibration of the wire is suppressed, and since there is no obstacle to the next flight of the wire, ideal wire movement is achieved. Therefore, as a result of obtaining a uniform impact force, it is possible to obtain a high-speed printing electrostrictive wire tod printer with a uniform printing surface.
なお本実施例ではベース部の2個所に電磁石を形成した
がこれを1個所としても本発明の有効性は失なわわ、な
い。In this embodiment, the electromagnets are formed at two locations on the base portion, but the effectiveness of the present invention will not be lost even if the electromagnets are provided at one location.
第1図は従来の電歪式ワイヤートッドプリンタヘッドの
構成図。第2図0)は1回目の印字のみによるワイヤー
先端変位の時間応答特性図、第2図←)は電歪素子の印
加電圧波形、第2図fうは本発明の電歪式ヘッドの励磁
電圧波形図、第3図0)は従来の電歪式ヘッドにおける
2回連続印字によるワイヤー先端変位及び衝撃力の時間
応答特性図、第31i:?!(ロ)は電歪素子の印加電
圧波形図、第一図は本発明の電歪式ワイヤードラ・トプ
リンタヘッドの実施例を示す図。第5図0)は第4図に
示した電歪式ワイヤートッドプリンタヘッドの2回連続
印字によるワイヤー先端変位及び衝撃力の時間応答特性
図、第5図←)は電歪素子の印加電圧波形図、第5図f
引ま励磁電圧波形図。
図にル;いて、101は電歪素子、102はへラドベー
ス、103,104.]05.106,110.111
はヒンジ、107.108,112はそれぞれ第4レバ
ー、第2レバー、第3レバー、113は第3レバーのア
ーム部分、114はワイヤー、115はインクリボン、
116は紙、117はプラテン、118.119はスト
ッパー、401゜“°′(1電6強石゛A;分・ 7
.1.1、h =tt、an−+−r# [イ1.〜、
環1図
/62
82図
0 6.2 5.4 t)、6
0.8時M (包sec ’)
三 衝撃鴫伍(A/) 當
ヮイ坤−先文品友Atシ(7−) 電圧(V)境4図
葆5図
晴 関 (飢SεC)FIG. 1 is a configuration diagram of a conventional electrostrictive wire tod printer head. Figure 2 0) is a time response characteristic diagram of wire tip displacement due to only the first printing, Figure 2 ←) is the applied voltage waveform of the electrostrictive element, and Figure 2 f is the excitation of the electrostrictive head of the present invention. Voltage waveform diagram, Figure 3 0) is a time response characteristic diagram of wire tip displacement and impact force due to two consecutive printings in a conventional electrostrictive head, No. 31i:? ! (B) is a voltage waveform diagram applied to an electrostrictive element, and FIG. 1 is a diagram showing an embodiment of the electrostrictive wired printer head of the present invention. Figure 5 0) is a time response characteristic diagram of the wire tip displacement and impact force due to two consecutive printings with the electrostrictive wire tod printer head shown in Figure 4, and Figure 5 ←) is the applied voltage waveform of the electrostrictive element. Fig. 5 f
Drawing excitation voltage waveform diagram. In the figure, 101 is an electrostrictive element, 102 is a herad base, 103, 104 . ]05.106,110.111
107, 108, 112 are the fourth lever, the second lever, and the third lever, 113 is the arm part of the third lever, 114 is the wire, 115 is the ink ribbon,
116 is paper, 117 is platen, 118.119 is stopper, 401°"°' (1 electric 6 strong stone A; minute 7
.. 1.1, h = tt, an-+-r# [a1. ~,
Ring 1 figure/62 82 figure 0 6.2 5.4 t), 6
0.8 o'clock M (package sec') 3 Shock level (A/) 當ヮい坤-前文品Friend Atshi (7-) Voltage (V) boundary 4 figure 5 figure clear Seki (starvation SεC)
Claims (1)
いに異なる向きに回転する第1のレバー及び第2のレバ
ーと、該電歪素子を保持し、かつ第1及び第2のレバー
とヒンジを介して接続しているベースと、第1及び第2
のレバーにヒンジを介して接続しており、しかもアーム
部を有する第3のレバーを具備してなる電歪式ワイヤー
トッドプリンタ用ヘッドにおいてベース部分に電磁石を
形成したことを特徴とする電歪式ワイヤートッドプリン
タ用印字ヘッド。an electrostrictive element; first and second levers connected to the electrostrictive element via a hinge and rotating in different directions; and first and second levers that hold the electrostrictive element; and a base connected via a hinge to the first and second
An electrostrictive head for an electrostrictive wire tod printer comprising a third lever connected to the lever via a hinge and having an arm part, the head having an electromagnet formed in the base part. Print head for wire tod printers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19214382A JPS5981181A (en) | 1982-11-01 | 1982-11-01 | Printing head for electrostrictive-type wire dot printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19214382A JPS5981181A (en) | 1982-11-01 | 1982-11-01 | Printing head for electrostrictive-type wire dot printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5981181A true JPS5981181A (en) | 1984-05-10 |
Family
ID=16286404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19214382A Pending JPS5981181A (en) | 1982-11-01 | 1982-11-01 | Printing head for electrostrictive-type wire dot printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5981181A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4871271A (en) * | 1986-08-20 | 1989-10-03 | Fuji Photo Film Co., Ltd. | Printing head for a wire dot printer |
EP0366981A2 (en) * | 1988-10-31 | 1990-05-09 | International Business Machines Corporation | Matrix printer actuator |
US5046872A (en) * | 1988-10-31 | 1991-09-10 | Ibm Corporation | Printer actuated by piezoelectrically generated shock wave |
EP0569253A2 (en) * | 1992-05-08 | 1993-11-10 | Fujitsu Limited | Printing head |
-
1982
- 1982-11-01 JP JP19214382A patent/JPS5981181A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4871271A (en) * | 1986-08-20 | 1989-10-03 | Fuji Photo Film Co., Ltd. | Printing head for a wire dot printer |
EP0366981A2 (en) * | 1988-10-31 | 1990-05-09 | International Business Machines Corporation | Matrix printer actuator |
US5046872A (en) * | 1988-10-31 | 1991-09-10 | Ibm Corporation | Printer actuated by piezoelectrically generated shock wave |
EP0569253A2 (en) * | 1992-05-08 | 1993-11-10 | Fujitsu Limited | Printing head |
EP0569253A3 (en) * | 1992-05-08 | 1994-08-24 | Fujitsu Ltd | Printing head |
US5447381A (en) * | 1992-05-08 | 1995-09-05 | Fujitsu Limited | Piezoelectric printing head |
EP0756938A3 (en) * | 1992-05-08 | 1998-01-14 | Fujitsu Limited | Printing head |
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