JPS59156762A - Printer head unit - Google Patents

Printer head unit

Info

Publication number
JPS59156762A
JPS59156762A JP3139683A JP3139683A JPS59156762A JP S59156762 A JPS59156762 A JP S59156762A JP 3139683 A JP3139683 A JP 3139683A JP 3139683 A JP3139683 A JP 3139683A JP S59156762 A JPS59156762 A JP S59156762A
Authority
JP
Japan
Prior art keywords
needle
drive member
return
piston
pressure
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
Application number
JP3139683A
Other languages
Japanese (ja)
Inventor
Masayoshi Noda
野田 正義
Takeyoshi Tsuge
柘植 武義
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Sanyo Electric Co Ltd
Toshiba TEC Corp
Original Assignee
Tokyo Sanyo Electric Co Ltd
Tokyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokyo Sanyo Electric Co Ltd, Tokyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP3139683A priority Critical patent/JPS59156762A/en
Publication of JPS59156762A publication Critical patent/JPS59156762A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/10Sound-deadening devices embodied in machines

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To silence noise caused by needle driving displacements by installing pressure driving member and return driving member formed with a shape memory material which elongates and contracts thermally by specific resistance of material and allowing reciprocating motions of needle by electric transmission control. CONSTITUTION:Under a non-transmission condition, a piston 3 is pushed into a center position inside a cylinder 4 by means of a return spring 15 through an insulating sleeve 6 natural lengths of driving members 13, 14 are equal as represented A=B. When a switching element 17 is placed in ''ON'' position, a closed circuit comprising source 16-switching element 17-electrode plate 9-pressure driving member 13-piston 3-cylinder 4 is completed and heat generation by natural resistance of the pressure driving member 13 causes a relation A>B and a stroke of the piston 3 to the RH side causes the needle 1 to assume a typing action by displacement by delta under pressure. When the switching element 17 is placed in ''OFF'' position and the element 18 in ''ON'' position, the needle 1 is allowed to make a return displacement by transmission heat of the return driving member 14. Thereby, impact load can be reduced and noise silenced.

Description

【発明の詳細な説明】 発明の技術分野 本発明は、ドツトプリンタ等における二一ドルを用いた
プリンタヘッド装置に関する。
DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a printer head device for use in dot printers and the like.

発明の技術的背景およびその問題点 従来、ドツトプリンタではニードルを加圧変位させて印
字するものであるが、ニードルを動作させるのに電磁石
を使用しているため、コイルにパルス電圧を印加してア
ーマチュアをヨークコアへ吸着させる際、その吸着騒音
が激しく、静粛な環境には不向きである。
Technical background of the invention and its problems Conventionally, dot printers print by displacing the needle under pressure, but since an electromagnet is used to operate the needle, a pulse voltage is applied to the coil and the armature is moved. When it is adsorbed to the yoke core, the suction noise is loud and is not suitable for quiet environments.

発明の目的゛ 本発明は、このような点に鑑みなされたもので、ニード
ルを駆動変位させる際の騒音を極力小さくすることがで
きるプリンタヘッド装置を得ることを目的とする。
OBJECTS OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a printer head device that can minimize noise when driving and displacing a needle.

発明の概要 本発明は;材料の固有抵抗で発熱伸縮する形状記憶材料
により形成された加圧駆動部材と復帰駆動部材とを設け
て、これらの部材への通電制御によりその形状記憶性質
を利用してニードルを往復動させることにより、ニード
ルを駆動変位させる際の騒音を極力小さくすることがで
きるように構成したものである。
Summary of the Invention The present invention includes a pressurizing drive member and a return drive member made of a shape memory material that generates heat and expands and contracts due to the material's specific resistance, and utilizes the shape memory property of the material by controlling the supply of electricity to these members. By reciprocating the needle, the noise generated when driving and displacing the needle can be minimized.

発明の実施例 本発明の第πの実施例を第1図ないし第5図に基づ−て
説明する。まず、第1図は1不のニードル(1)に対す
る駆動体(2)の基本構成を示すもので、ニードル(1
)はピストン(3)に連結されている。このピストン(
3)はシリンダ(4)内を左右方向に摺動するものであ
る。ここで、シリンダ(4)はステンレスパイプであり
その内面は鏡面仕上げされている。また、ピストン(3
)も導電性材料により形成され、シリンダ(4)内面に
接合する外周は研磨されている。
Embodiment of the Invention A π-th embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. First, Fig. 1 shows the basic configuration of the driver (2) for the needle (1) of 1.
) is connected to the piston (3). This piston (
3) slides in the left and right direction inside the cylinder (4). Here, the cylinder (4) is a stainless steel pipe, and its inner surface is mirror-finished. Also, the piston (3
) is also made of a conductive material, and the outer periphery that joins to the inner surface of the cylinder (4) is polished.

そして、ピストン(3)の左右においてシリンダ(4)
の内周には所定長さの耐熱性絶縁スリーブ(51(6)
が設けられている。また、シリンダ(4)の両端には蓋
として絶縁材(7) +8)が取付けられている。この
絶縁材(力(8)の内部側には各々電極板(9) (1
0)が設けられている。ここで、絶縁材(8)および電
極板(10)には前記ニードル(1)がスライド自在な
穴Uυ住4が形成されている。
Then, cylinders (4) are installed on the left and right sides of the piston (3).
A heat-resistant insulating sleeve (51 (6)
is provided. Furthermore, insulating materials (7) + 8) are attached to both ends of the cylinder (4) as lids. Each electrode plate (9) (1
0) is provided. Here, a hole Uυ housing 4 is formed in the insulating material (8) and the electrode plate (10), into which the needle (1) can freely slide.

しかして、シリンダ(4)内にはピストン(3)・絶縁
材(7)間に位置させて刀口圧駆動部材(13)、ピス
トン(3)・絶縁材(8)間に位置させて復帰駆動部材
a4aが各々設けられている。ここで、両部動部材u3
)(14)は材料の固有抵抗で発熱伸縮する形状記憶材
料によりコイルばね状に形成されている。すなわち、線
径0.2〜0.37nmの線材で材質としてTiやNi
を使用したもので、たとえば巻線ピッチを1.0 mm
程度としてコイルはね状に巻線して約45’O℃で熱処
理して形状記憶させ、熱処理後は両端を押圧して巻線ピ
ッチが約0.5問程度となるようにしてシリンダ(4)
内に組込んだものである。ここに、両1駆動部材u31
(14)の内部側一端はピストン(3)に固定されて電
気的接続がなされ、他端は各々電極板(9)α0)に固
定接続されている。
In the cylinder (4), there is a knife mouth pressure drive member (13) located between the piston (3) and the insulator (7), and a return drive member (13) located between the piston (3) and the insulator (8). Each member a4a is provided. Here, both moving members u3
) (14) is formed into a coil spring shape using a shape memory material that expands and contracts due to heat generation due to the specific resistance of the material. In other words, it is a wire with a wire diameter of 0.2 to 0.37 nm and made of Ti or Ni.
For example, the winding pitch is 1.0 mm.
As for the degree, the coil is wound into a spring shape and heat treated at about 45'O℃ to memorize the shape, and after the heat treatment, both ends are pressed so that the winding pitch is about 0.5 degrees. )
It has been incorporated into the system. Here, both 1 drive members u31
One end of the inner side of (14) is fixed to the piston (3) for electrical connection, and the other end is fixedly connected to each electrode plate (9) α0).

マタ、絶縁スリーブ(6)・絶縁材(8)間にはこの絶
縁スリーブ(6)ヲ介してピストン(3)を所定のはね
定数で押圧する戻しはね(15が設けられている。
A return spring (15) is provided between the insulating sleeve (6) and the insulating material (8) to press the piston (3) at a predetermined spring constant through the insulating sleeve (6).

ここで、電気的には第2図に示すようにシリンダ(4)
が共通電極とされて直流電源σ6)−側が接続され、電
極板(9) (10)には+側が接続され、開閉素子(
17)(1〜のON・OFF’により駆動部材(131
圓に対する通電制御がなされるものである。
Here, electrically, as shown in Figure 2, the cylinder (4)
is used as a common electrode, the - side of the DC power supply σ6) is connected, the + side is connected to the electrode plates (9) and (10), and the switching element (
17) The driving member (131
The energization of the circle is controlled.

このような構成において、第2図(α)〜(G)によ多
動作を説明する。まず、同図(cL)は非通電状態を示
し、ピストン(3)は絶縁、スリーブ(6)を介して戻
しばね(151により初期位置としてのシリンダ(4)
内の中央部に押されている。このとき、左右の駆動部材
a■α荀の自然長はA=Bと等しい。このようにして、
ピストン(3)、t、たがってニードル(1)の初期位
置が安定して維持される。
In such a configuration, multiple operations will be explained with reference to FIGS. 2(α) to (G). First, the same figure (cL) shows a non-energized state, the piston (3) is insulated, and the cylinder (4) is returned to the initial position by the return spring (151) via the sleeve (6).
It is pressed in the center of the inside. At this time, the natural lengths of the left and right driving members a and α are equal to A=B. In this way,
The initial position of the piston (3), t and thus of the needle (1) is maintained stably.

しかして、同図(匂に示すように開閉素子(17)がO
Nすると、電源(16)−開閉素子(17)−電極板(
9)−加圧駆動部材(2)−ピストン(3)−シリンダ
(4)(共通電極)の閉回路が形成され、加圧駆動部材
α3)にパルス電圧が印加される。このパルス電圧印加
により、加圧駆動部材(1尋は形状記憶性質を発揮し、
その材料の固有抵抗で発熱して熱処理直後の自然長、す
なわち、巻線ピッチが゛約1.0 mmの状態に戻ろう
と1寸法はA>Bとなる。これによシピストン(3)が
右方へ押され、ニードル(1)は同図(cL)の初期位
置に対しδだけ加圧変位して印次動作が行なわれる。こ
のような印字後、開閉素子(17)をOFF して開閉
素子(18)をONさせると、同図(−)に示すように
今度は復帰駆動部材(1荀が形状記憶特性を発揮し、戻
しばね(151とともにピストン(3)を左方へ押し戻
し、ニードル(1)は同図(cL)と同様の初期位置に
復帰変位される。
However, as shown in the same figure, the switching element (17) is
When N, power supply (16) - switching element (17) - electrode plate (
9) A closed circuit of the pressure drive member (2), the piston (3), and the cylinder (4) (common electrode) is formed, and a pulse voltage is applied to the pressure drive member α3). By applying this pulse voltage, the pressurized drive member (1 fathom) exhibits shape memory properties,
If heat is generated due to the specific resistance of the material and the natural length immediately after heat treatment, that is, the winding pitch returns to the state of about 1.0 mm, one dimension becomes A>B. As a result, the piston (3) is pushed to the right, and the needle (1) is displaced by pressure by δ with respect to the initial position shown in FIG. After such printing, when the opening/closing element (17) is turned OFF and the opening/closing element (18) is turned ON, the return drive member (1) exhibits shape memory characteristics, as shown in (-) in the figure. The piston (3) is pushed back to the left together with the return spring (151), and the needle (1) is returned to the initial position similar to that shown in the same figure (cL).

なお、ばねの強さは通電発熱時のはね定数をA1、通電
遮断時のはね定数を42、戻しはね(15)の定数をA
、としたとき、謹。> ’3> ’2である。
The strength of the spring is as follows: A1 is the spring constant when energizing generates heat, 42 is the spring constant when energizing is interrupted, and A is the spring constant of the return spring (15).
, when you say that. >'3>'2.

このような動作の繰返しによシニードル(1)が往復動
して印字動作が行なわれるものである。第3図は加圧駆
動部材α3)および復帰駆動部材(1力に対する通電制
御のタイミングチャートであり、ON・OFFか同時点
で行なわれるため、応答速度が速い。
By repeating such operations, the needle (1) moves back and forth to perform a printing operation. FIG. 3 is a timing chart of energization control for the pressurizing drive member α3) and the return drive member (one force).Since ON and OFF are performed at the same time, the response speed is fast.

ここで、ドツトプリンタのヘッドとしてはたとえば、第
4図および第5図のように構成される。
Here, the head of the dot printer is constructed as shown in FIGS. 4 and 5, for example.

すなわち、複数の駆動体(2)が円周上に配列され、各
々のニードル(1)が順次ニードルガイドμ9) C!
0) ’にたよって整列し、先端ガイド圓によってニー
ドル(1)はその先端が定められた縦長さに配列される
ことになる。そして、各駆動体(2)を必要に応じて通
電制御すれば、必要なニードル(1)がインクリボン(
22)を介して普通紙(ハ)に印字することになる。な
お、(財)は冷却フィンである。
That is, a plurality of drive bodies (2) are arranged on the circumference, and each needle (1) is sequentially guided by the needle guide μ9) C!
0)', and the tips of the needles (1) are arranged in a predetermined vertical length by the tip guide circle. Then, by controlling the energization of each drive body (2) as necessary, the necessary needles (1) can be moved to the ink ribbon (
22) to be printed on plain paper (c). In addition, (Foundation) is a cooling fin.

したがって、本実施例によれば、加圧駆動部材(13)
復帰駆動部材(1勺を設け、その形状記憶特性を利用し
てニードル(1)を加圧・復帰変位させているので、従
来のアーマチュア方式に比ベニードルの駆動変位に際し
て騒音を小さくすることができる。
Therefore, according to this embodiment, the pressure driving member (13)
A return drive member (1 piece) is provided, and its shape memory characteristics are used to pressurize and return the needle (1), making it possible to reduce noise when driving and displacing the needle (compared to the conventional armature method). .

また、衝撃荷重が小さいことからインクリボンの生地寿
命を延ばすことができる。
Furthermore, since the impact load is small, the life of the ink ribbon can be extended.

つづいて、本発明の第二の実施例を第6図ないし第10
図によシ説明する。前記実施例では、コイルばね状の加
圧駆動部材(13)および復帰駆動部材(14)を用い
たが、本実施例では板状の加圧駆動部材(251と復帰
駆動部材COとを用いるものであり、両部動部材(25
) (26)は下端側が位置固定されて対向配置されて
いる。ここで、加圧駆動部材(ハ)は復帰駆動部材(2
6)側に向けて形状記憶されているものであり、その上
端側にはニードル(1)が形状記憶方向に固定されてし
る。ここで、ニードル(1)は加圧駆動部材(25)に
ロー付は等によシ固定されるが、第7図に示すようにロ
ー付は部分(27)が加圧駆動部材(25)の上端から
はみ出さないようにされている。一方、復帰駆動部材(
261はニードル(1)を避けるため加圧駆動部材(2
51よpも短めとされ、加圧駆動部材(25)側に向け
て形状記憶されている。
Next, a second embodiment of the present invention will be described in FIGS. 6 to 10.
This will be explained with the help of a diagram. In the above embodiment, a coil spring-shaped pressure drive member (13) and a return drive member (14) were used, but in this embodiment, a plate-shaped pressure drive member (251) and a return drive member CO are used. , both moving members (25
) (26) are arranged opposite to each other with their lower ends fixed in position. Here, the pressure driving member (c) is the return driving member (2).
6), and a needle (1) is fixed to the upper end thereof in the shape memory direction. Here, the needle (1) is fixed to the pressure drive member (25) by brazing or the like, but as shown in FIG. It is made so that it does not protrude from the top edge. On the other hand, the return drive member (
261 is a pressurizing drive member (2) to avoid the needle (1).
51 is also made shorter, and its shape is memorized toward the pressure driving member (25) side.

そして、電気的にはそれぞれの駆動部材(251(26
)の側面にその頂点側から端子Hまで耐熱絶縁線C)9
1 AZ配線され、端子(28)にはリード線側が接続
されている。また、両部動部材(25)シQの下部側か
らも耐熱絶縁線c31)が共通端子(321まで配線さ
れ、この共通端子(3乃には共通リード線(至)が接続
されている。
Electrically, each driving member (251 (26)
) on the side from its apex side to terminal H C)9
1 AZ wiring, and the lead wire side is connected to the terminal (28). Also, a heat-resistant insulated wire c31) is wired from the lower side of both moving members (25) Q to a common terminal (321), and a common lead wire (to) is connected to this common terminal (3).

このような構成において、リード線(至)により端子(
ハ)に第8図に示す印字ノ(ルス電圧を与・えればその
+V信号のみに応じて加圧駆動部材(251が発熱する
ことになり、形状記憶特性を発揮し、その形状記憶方向
に従いニードル(1)全前進させ加圧変位させることに
なる。したがって、両部動部材(ハ)シ句間の間隔は初
期状態より狭くなる。そして、+v傷信号OFFと同時
に復帰駆動部材(4))に−■信号カニ印加されて発熱
し、形状記憶特性を発揮しカロ圧駆動部材Q喝側に向け
て作動する。このため、復帰駆動部材(2E9の頭部が
加圧駆動部材(251に突き当ってこの加圧駆動部材■
51を強制的に初期状態に押し戻す。
In such a configuration, the lead wire (to) connects the terminal (
If a pulse voltage is applied to the printing nozzle (251) shown in Fig. 8 to (c), the pressure drive member (251) will generate heat in response to only the +V signal, exhibiting shape memory characteristics, and following the shape memory direction. The needle (1) is fully advanced and displaced under pressure. Therefore, the distance between the two moving members (c) becomes narrower than the initial state. Then, at the same time as the +v wound signal turns OFF, the return driving member (4) ) is applied with the -■ signal and generates heat, exhibits shape memory characteristics, and operates toward the pressure drive member Q side.For this reason, the head of the return drive member (2E9) is connected to the pressure drive member (251). This pressurizing drive member ■
51 is forcibly returned to its initial state.

このため、復帰駆動部材(26)の頭部には絶縁用と摩
耗防止用の表面保護膜(3荀が設けられている。これに
よシ、ニードル(1)は復帰変位する。
For this reason, the head of the return drive member (26) is provided with a surface protection film (three layers) for insulation and wear prevention.This causes the needle (1) to return to its original position.

ここで、ドツトプリンタのヘッドとしてはたとえば第9
図および第10図のように構成さiする。(351は絶
縁性のヘッド本体であり、各駆動部材(25) (26
)の下部を支持(埋込み)している。そして、ニードル
(1)の先端を縦一列直線状に配列するため、各駆動部
材e51(4)は後部のもの程順次高くなっている。
Here, as the head of the dot printer, for example, the 9th
It is constructed as shown in FIGS. (351 is an insulating head body, each drive member (25) (26
) is supported (embedded) at the bottom. Since the tips of the needles (1) are arranged vertically in a straight line, the drive members e51 (4) are sequentially higher toward the rear.

また、(36)(37)はニードル4イドで、同一のニ
ードル穴間隔とし、図中左右方向に往復動するニードル
(1)先端のふらつきを防止する。(38)はコネクタ
音すてヘッド本体(3つの凹部6[株]から引出さ・れ
たリード線60)贈と結線されている。なお、第10図
の矢印は駆動部材(251 (26)の形状記憶方向を
示す。
Further, (36) and (37) are four-id needles, with the same needle hole spacing to prevent the tip of the needle (1) from wobbling as it reciprocates in the left-right direction in the figure. (38) is connected to the connector head body (lead wires 60 drawn out from the three recesses 6). Note that the arrow in FIG. 10 indicates the shape memory direction of the drive member (251 (26)).

なお、本発明はドツトプリンタへの適用に限られるもの
ではない。たとえば、インク保持手段により保持された
インクをニードルの加圧変位動作、によりインク滴とし
て磁界中に放出させ、普通紙に付着させる等の方式のプ
リンタにも適用できる。
Note that the present invention is not limited to application to dot printers. For example, the present invention can be applied to a printer in which ink held by an ink holding means is discharged as ink droplets into a magnetic field by pressurizing and displacing a needle, and the ink droplets are deposited on plain paper.

要するに、ニードル(1)の動きに基づく機械的エネル
ギーによりドツトを形成するものであれば適用できる。
In short, any device that forms dots using mechanical energy based on the movement of the needle (1) can be applied.

発明の効果 本発明は、上述したように材料の固有抵抗で発熱伸縮す
る形状記憶材料によシ形成された加圧駆動部材と復帰駆
動部材とを設けて、これらの部材への通電制御によりそ
の形状記憶性質を利用してニードルを往復動させたので
、ニードルの駆動変位に際しての騒音を極力小さくする
ことができるものである。
Effects of the Invention As described above, the present invention includes a pressurizing drive member and a return drive member formed of a shape memory material that generates heat and expands and contracts due to the material's specific resistance, and controls the current supply to these members to control the return drive member. Since the needle is reciprocated using its shape memory property, the noise generated when the needle is driven and displaced can be minimized.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の第一の実施例を示す縦断側面図、第2
図(cL)〜(G)は動作を示す縦断側面図、第3図は
タイミングチャート、第4図はヘッド全体の側面図、第
5図はその配置図、vJG図は本発明の第二の実施例を
示す斜視図、第7図はその一部を拡大して示す背面図、
第8図はタイミングチャート、第9図は−・ラド全体の
正面図、第10図はその縦断側面図である。 1 ニードル、3・・・ピストン、4・・シリンダ、7
〜8 絶縁材、9〜10・電極板、13・加圧駆動部材
、14・復帰駆動部材、15・・戻しばね、25・・加
圧1駆動部材、26・・復帰駆動部材 量 願 人   東京電気株式会社 あJ図 」U−図 手 続 補 正 書 (自発) 昭和58年4月12日 1 事件の表示 特願昭58−31396号 2 発明の名称 プリンタヘッド装置 3、補正をする者 事件との関係  特許出願人 4 代  理  人 、〒107 氏 名 7211  弁理士 相  木   明5 補
正命令の日付 この出願に関し、明細書および図面の記載を下記のよう
に補正する。 記 1、  明at中、第6頁第8行目の「ピストン(3)
、したがってニードル(1)」を[ピストン(3)ト二
一ドル(1)」に補正する。 ゛ 2、 図面中、第4図を別紙のように補正する。 翼もU昆 瓜
FIG. 1 is a vertical cross-sectional side view showing the first embodiment of the present invention, and the second
Figures (cL) to (G) are longitudinal side views showing the operation, Figure 3 is a timing chart, Figure 4 is a side view of the entire head, Figure 5 is its layout, and the vJG diagram is the second diagram of the present invention. A perspective view showing the embodiment; FIG. 7 is a rear view showing an enlarged part of the embodiment;
FIG. 8 is a timing chart, FIG. 9 is a front view of the entire RAD, and FIG. 10 is a vertical side view thereof. 1 Needle, 3...Piston, 4...Cylinder, 7
~8 Insulating material, 9~10・Electrode plate, 13・Pressure drive member, 14・Return drive member, 15・Return spring, 25・Pressure 1 drive member, 26・Return drive member amount Applicant Tokyo Electrical Co., Ltd. AJ Diagram U-Diagram Procedures Amendment (Spontaneous) April 12, 1981 1 Indication of Case Patent Application No. 1983-31396 2 Title of Invention Printer Head Device 3, Person Who Makes Amendment Case Relationship with Patent applicant 4 Agent, 107 Name 7211 Patent attorney Akira Aiki 5 Date of amendment order Regarding this application, the description and drawings are amended as follows. Note 1, "Piston (3)" on page 6, line 8 in the clear text.
, therefore, the needle (1) is corrected to the piston (3) and the needle (1). 2.Amend Figure 4 in the drawings as shown in the attached sheet. The wings are also U-kombu

Claims (1)

【特許請求の範囲】 1 ニードルを加圧変位させる加圧駆動部材と、このニ
ードルを復帰変位させる復帰駆動部材とを材料の固有抵
抗で発熱伸縮する形状記憶材料によシ形成して設け、こ
れらの加圧駆動部材と復帰駆動部材への通電制御により
ニードルを往復動させたことを特徴とするプリンタヘッ
ド装置。 2 ニードルを加圧変位させる加圧駆動部材とこのニー
ドルを復帰変位させる。復帰駆動部材とを材料の固有抵
抗で発熱伸縮する形状記憶材料によシコイルばね状に形
成して設け、これらの加圧駆動部材と復帰駆動部材との
間に配置されつつこれらの部材の一端に電気的に接続さ
れて前記ニードルが取付けられた導電性のピストンを設
け、このピストンの摺動をガイドする導電性のシリンダ
を設け、このシリンダの両端に取付けられて前記加圧駆
動部材、復帰駆動部材の他端に接触する電極板を有する
絶縁材を設け、これらの加圧駆動部材と復帰駆動部材へ
の通電制御によシェードルを往復動させたことを特徴と
するプリンタヘッド装置。 3 シリンダをピストンを介して加圧駆動部材と復帰駆
動部材との′共通電極としたことを特徴とする特許請求
の範囲第2項記載のプリンタヘッド装置。 4 ニードルを加圧変位させる加圧駆動部材とこのニー
ドルを復帰変位させる復帰駆動部材とを材料の固有抵抗
で発熱伸縮する形状記憶材料によりコイルばね状に形成
して設け、これらの加圧駆動部材と復帰駆動部材との間
に配置されつつ前記ニードルが取付けられたピストンを
設け、このピストンの摺動をガイドするシリンダを設け
、非通電状態で前記ピストンをシリンダ内の初期位置に
維持させる戻しばねを設け、前記加圧駆動部材と復帰駆
動部材への通電制御によpニードルを往復動させたこと
を特徴とするプリンタヘッド装置。
[Scope of Claims] 1. A pressurizing drive member that pressurizes and displaces the needle and a return drive member that returns and displaces the needle are formed of a shape memory material that expands and contracts with heat due to the inherent resistance of the material. A printer head device characterized in that a needle is reciprocated by controlling energization to a pressure drive member and a return drive member. 2. A pressurizing drive member that pressurizes and displaces the needle and returns the needle to displacement. The return drive member is formed in the shape of a coiled spring from a shape memory material that heats up and expands and contracts due to the inherent resistance of the material, and is disposed between the pressurization drive member and the return drive member and is attached to one end of these members. A conductive piston is provided that is electrically connected and has the needle attached thereto, and a conductive cylinder that guides the sliding movement of the piston is provided, and the pressure drive member and the return drive are attached to both ends of the cylinder. A printer head device characterized in that an insulating material having an electrode plate in contact with the other end of the member is provided, and a shader is reciprocated by controlling the supply of electricity to the pressure driving member and the return driving member. 3. The printer head device according to claim 2, wherein the cylinder is used as a common electrode for the pressurizing drive member and the return drive member via a piston. 4 A pressure drive member that presses and displaces the needle and a return drive member that returns and displaces the needle are formed in the shape of a coil spring from a shape memory material that expands and contracts heat due to the material's specific resistance, and these pressure drive members and a return drive member, the piston having the needle attached thereto, a cylinder for guiding the sliding movement of the piston, and a return spring for maintaining the piston at an initial position within the cylinder in a non-energized state. A printer head device characterized in that the p-needle is reciprocated by controlling the supply of electricity to the pressure drive member and the return drive member.
JP3139683A 1983-02-25 1983-02-25 Printer head unit Pending JPS59156762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3139683A JPS59156762A (en) 1983-02-25 1983-02-25 Printer head unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3139683A JPS59156762A (en) 1983-02-25 1983-02-25 Printer head unit

Publications (1)

Publication Number Publication Date
JPS59156762A true JPS59156762A (en) 1984-09-06

Family

ID=12330096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3139683A Pending JPS59156762A (en) 1983-02-25 1983-02-25 Printer head unit

Country Status (1)

Country Link
JP (1) JPS59156762A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61197253A (en) * 1985-02-28 1986-09-01 Amano Corp Dot printer
JPS61143839U (en) * 1985-02-26 1986-09-05
CN110466259A (en) * 2019-08-30 2019-11-19 湖南长城信息金融设备有限责任公司 A kind of the print needle design method and printer of pin type low noise print head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61143839U (en) * 1985-02-26 1986-09-05
JPS61197253A (en) * 1985-02-28 1986-09-01 Amano Corp Dot printer
CN110466259A (en) * 2019-08-30 2019-11-19 湖南长城信息金融设备有限责任公司 A kind of the print needle design method and printer of pin type low noise print head

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