JPS58217374A - Printing head - Google Patents
Printing headInfo
- Publication number
- JPS58217374A JPS58217374A JP10105182A JP10105182A JPS58217374A JP S58217374 A JPS58217374 A JP S58217374A JP 10105182 A JP10105182 A JP 10105182A JP 10105182 A JP10105182 A JP 10105182A JP S58217374 A JPS58217374 A JP S58217374A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- springs
- print head
- clamp member
- armature
- 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
- B41J2/22—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
- B41J2/275—Actuators for print wires of clapper type
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は情報処理装置における入出力機器として広く用
いられるプリンタ装置の印字ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a print head of a printer device widely used as an input/output device in an information processing device.
まず、最初に従来の印字ヘッドの構造を説明、 する
。First, we will explain the structure of a conventional print head.
第１図は従来の印字ヘッドの主要構成部を分解して示し
た斜視図である。 磁気駆動部１は図示しないワイヤの
数と同数のコア２を有しておυ、各コアの外周にはコイ
ルが巻かれている。FIG. 1 is an exploded perspective view of the main components of a conventional print head. The magnetic drive unit 1 has the same number of cores 2 as the number of wires (not shown), and a coil is wound around the outer periphery of each core.
スプリング３珪複数個に分割されており、各スプリング
の一端にはワイヤが固定されている。The spring is divided into a plurality of 3-cell springs, and a wire is fixed to one end of each spring.
上下クランプ６ｍ、６ｂはスプリング３の他端を固定す
る場合にスプリング３を所定の位置に設定するために挿
入されるものである１、ヨーク５は印字ヘッドの磁気回
路の一部を形成するだめのもので、磁気駆動部１のコア
数と同数の穴を有している。The upper and lower clamps 6m and 6b are inserted to set the spring 3 in a predetermined position when fixing the other end of the spring 3.1 The yoke 5 is a clamp that forms part of the magnetic circuit of the print head. It has the same number of holes as the number of cores of the magnetic drive unit 1.
牙４．５図は第１図の各部を組立て、その一つの印字部
を断面で示した図である。Figure 4.5 is a cross-sectional view of one printed part of the assembled parts of Figure 1.
第４．５図においては牙１図のヨーク５の穴部にスプリ
ング３ａの中間部に固定されているアーマチュア４が遊
嵌されるように固定されるが省略されている。In Fig. 4.5, the armature 4 fixed to the middle part of the spring 3a is loosely fitted into the hole of the yoke 5 shown in Fig. 1, but this is omitted.
印字ヘッドが動作してい々い状態ではアーマチュア４は
スプリング３ａの付勢力に抗してコア２ａに吸引され接
触している。When the print head is in full operation, the armature 4 is attracted to and comes into contact with the core 2a against the biasing force of the spring 3a.
印字するときは巻線９ａＫ磁気を打消すように電流を流
し、スプリング３ａを解放することによりスプリング３
ｍの先端に取付けられているワイヤ（牙４．５図では省
略）を動作させる。When printing, a current is applied to cancel the magnetism of the winding 9aK, and the spring 3a is released.
Operate the wire attached to the tip of the tooth (fang 4.5, omitted in the figure).
このよう慶従来の印字ヘッドに詮いて、コアとの間で吸
引と解放を繰返す可動部であるスプ翫
リングは例えばスプリングを分割した構造のものは＼第
２図に示すように各々のスプリング３ａｓ３ｂ・・・・
・・・・・をヨーク５にネジ締めあるいは溶接Ａ等で固
着しなければならず）その結果）複数個になるとスプリ
ングの位置、方向等寸法精度上のばらつきが大きくなり
、印字品質に悪い影響を及はす。In this way, in the conventional print head of Kei, the spring ring, which is a movable part that repeats suction and release from the core, has a structure in which the springs are divided, for example, each spring 3as 3b as shown in Fig. 2.・・・・・・
... must be fixed to the yoke 5 with screws or welding A).As a result, if there are multiple springs, variations in dimensional accuracy such as the position and direction of the springs will increase, which will have a negative effect on printing quality. Extends.
また、スプリング３自身が一体化の場合は丸型ヘッドの
ように高密度実装が要求されると、第３図に示すよう忙
スプリング３の先端の剛性を高めるためリプ片８を固着
しなければならず、したがって不必要な工程が増えコス
トアップにつながるばかりか、技術的にも困難な面が多
い。In addition, when the spring 3 itself is integrated and high-density mounting is required such as with a round head, it is necessary to fix the lip piece 8 to increase the rigidity of the tip of the spring 3 as shown in Fig. 3. Therefore, the number of unnecessary steps increases, which not only leads to an increase in costs, but also has many technical difficulties.
さらに、スプリング３の歪エネルギで印字するタイプの
印字ヘッドは第４図に示すように、コア２に対しアーマ
チュア４ａが面で接触することが衝突振動上および摩耗
上効果的であるが、現状は片当りの状態である。 逆に
第５図のように面衝突を狙った場合、スプリング３ａを
あらかじめ傾斜をつけて取付けなければならず、左右の
クランプ部材も斜めに加工が必要となり部品点数も増え
、組立ても困難になるという欠点があった。Furthermore, in a print head of the type that prints using the strain energy of the spring 3, as shown in FIG. 4, it is effective for surface contact of the armature 4a with the core 2 in terms of collision vibration and wear. It's a hit or miss situation. On the other hand, when aiming for a surface collision as shown in Fig. 5, the spring 3a must be installed at an angle beforehand, and the left and right clamp members must also be machined at an angle, increasing the number of parts and making assembly difficult. There was a drawback.
本発明の目的は、スプリングのアーマチュアとコアの間
隙とスプリング長を決定する固定端位置の寸法精度を上
げ、複数個のスプリングのばらつきをなくすととＫよυ
、従来より安定した印字品質を得ることのできる部品点
数の少ない組立作業の容易な印字ヘッドを提供する仁と
Ｋある。The purpose of the present invention is to improve the dimensional accuracy of the fixed end position that determines the gap between the spring armature and core and the spring length, and to eliminate variations in multiple springs.
, Jin and K provide a print head that is easy to assemble and has fewer parts and can provide more stable print quality than conventional printers.
前記目的を達成するために、本発明による印字ヘッドは
巻線が巻回わされた複数のコアを具備する磁気駆動部と
、一端に印字ワイヤが固定され）中間部にＱ ＲＦ２４
．５ ’、紋のコアにそれぞれ対応するアーマチュアが
固定されている複数のスプリングと、ヨークと、クラン
プ部材とからなシ前記各アーマチュアが前記各コアに対
し所定の間隙を作るように前記複数のスプリングの他端
を前記クランプ部材を介して帥記磁気駆動部に固定する
とともに１前記各アーマチユアを取囲むように前記ヨー
クを取付けることにょシ前記スプリングの付勢力に抗し
て前記コアに前記アーマチュアを吸引させ、前記巻線に
磁気を打消す電流を流し前記スプリングを解放すること
によって印字を行なう印字ヘッドにおいて、前記クラン
プ部材を前記複数のスプリングの他端を収容してモール
ド成形し、複数のスプリング他端とクランプ部材を一体
構造にして構成しである。In order to achieve the above object, the print head according to the present invention includes a magnetic drive part comprising a plurality of cores around which windings are wound, and a Q RF24 in the middle part (with a print wire fixed to one end).
．． 5', consisting of a plurality of springs each having an armature fixed to the core of the crest, a yoke, and a clamp member; The other end is fixed to the magnetic drive unit via the clamp member, and the yoke is attached so as to surround each of the armatures, and the armature is attached to the core against the biasing force of the spring. In the print head that performs printing by attracting the windings and releasing the springs by applying a current that cancels magnetism to the windings, the clamp member is molded to accommodate the other ends of the plurality of springs, and the plurality of springs are The other end and the clamp member are integrally constructed.
前記構成によれば、本発明の目的は完全に達成される。According to the configuration, the object of the present invention is completely achieved.
以下、図面を参照して本発明をさらに詳しく説明する。Hereinafter, the present invention will be explained in more detail with reference to the drawings.
牙６図は本発明による印字ヘッドの一実施例を示す図で
、スプリングの固定端部を一体化モールドしたスプリン
グ組立てを示す斜視図、オフ図は前記スプリング組立の
一断面図、第８図は本発明による印字ヘッドの組立方法
を示す分解斜視図である。 第８図の構成はスプリング
組立７の部分を除けば第１図と同様の構成である。Fig. 6 is a view showing an embodiment of the print head according to the present invention, and is a perspective view showing a spring assembly in which the fixed end of the spring is integrally molded, an off view is a sectional view of the spring assembly, and Fig. 8 is a perspective view showing a spring assembly in which the fixed end of the spring is integrally molded. 1 is an exploded perspective view showing a method of assembling a print head according to the present invention. FIG. The structure of FIG. 8 is the same as that of FIG. 1 except for the spring assembly 7.
牙６図で示すように分割したスプリング３を必要数量だ
け並べ固定端部を一体モールド化することによって複数
個のスプリング３を一体化してスプリング組立７を形成
している。As shown in FIG. 6, the spring assembly 7 is formed by integrating a plurality of springs 3 by arranging the necessary number of divided springs 3 and integrally molding the fixed ends.
したがって、一体モールド前にはスプリング３は大きさ
の制限を受けず、所定の剛性を得るためのリプ片８を形
成する曲げ代も十分余裕を持って確保できろう
各スプリング３はプレスで容易に加工できる。Therefore, before integral molding, the springs 3 are not subject to any size restrictions, and the bending allowance for forming the lip piece 8 to obtain a predetermined rigidity can be secured with sufficient margin.Each spring 3 can be easily pressed by pressing. Can be processed.
また、スプリング長さを決定する固定端や、スプリング
の位置、方向は同じ型や治工具で行なうので寸法精度は
万全であり、各スプリング３間におけるスプリング長、
位置、方向のばらつきはなくなり、印字品質の主要因で
あるスプリング条件は安定する。In addition, the fixed end that determines the spring length, the position and direction of the springs are made using the same mold and tool, so dimensional accuracy is perfect, and the spring length between each spring 3,
Variations in position and direction are eliminated, and the spring conditions, which are the main factor in print quality, are stabilized.
一方、オフ図で示すように、コア２ａの面に対しあらか
じめスプリング３をある傾斜角０を決めておいて、上記
のように一体モールド化することにより、アーマチュア
４ｍとコア２＆は面衝突となシ、衝突振動上および摩耗
対策にかなシの効果を期待できる。 さらに第５図に示
すような従来設けられていた上下のクランプ部材６ａｘ
６ｂを省略でき、部品点数を低減できる。On the other hand, as shown in the off-line diagram, by predetermining the angle of inclination 0 for the spring 3 with respect to the surface of the core 2a and integrally molding it as described above, the armature 4m and the core 2& will not cause surface collision. It can be expected to have a strong effect on collision vibration and wear protection. Further, as shown in FIG.
6b can be omitted and the number of parts can be reduced.
スプリング組立７は牙１図の従来の場合の上下のクラン
プ６ ＆、６ ｂｓ複数個のスプリング３＆、３ｂ、・
・・・・・の各部品が一つになったものであり、そのた
めスプリングの固定端は決定しているので、組立て用の
ネジ大数も削減でき、モールド部分の寸法精度向上に相
まって組立てが容易になシ、自動化も可能となる。The spring assembly 7 includes upper and lower clamps 6 &, 6 bs in the conventional case shown in Fig. 1, and a plurality of springs 3 &, 3b, .
Since the fixed end of the spring is fixed, the number of screws for assembly can be reduced, and the dimensional accuracy of the molded part is improved, making assembly easier. It is easy to use and can be automated.
以上詳しく説明しえように、本発明によれば複数個のス
プリングの固定端部をモールドで一体成形するととＫよ
って印字品質の安定化、長寿命化、部品点数の低減およ
び組立ての簡略化等が可能になり、安価で信頼性のある
印字ヘッドを実現できる。As explained in detail above, according to the present invention, the fixed ends of a plurality of springs are integrally molded, thereby stabilizing printing quality, extending life, reducing the number of parts, and simplifying assembly. This makes it possible to realize an inexpensive and reliable print head.
第１図は従来技術を示す印字ヘッド組立分解斜視図、第
２図はスプリングが分割されている場合の固着手段を示
す斜視図、牙３図はスプリング自身が一体化を示す斜視
図・第４図ハアーマチュアとコアが片当りをする場合の
印字ヘッドの断面図、牙５図はアーマチュアとコアが面
衝突するよう工夫した印字ヘッドの断面図１才６図は本
発Ｆ！ＡＫよる印字ヘッドのスプリングの固定端部の一
実施例を示す斜視図、オフ図はスプリングを傾斜させて
その固定端部を一体モールド（ｌ、したスプリング組立
を含む印字ヘッドの断面図、第８図は本発明による印字
ヘッドの組立分解斜視図である。
１・・・磁気駆動部
２．２ ｆＬ、 ２１） −−−、・、−ｙア３．３
ａ、３ｂ・・・ ・・・スプリング４ａ・・・アーマチ
ュア ５・・・ヨーク６ａ・・・上クランプ ６
ｂ−・・下クランプ７・・・スプリング組立 ８・・
・リブ片９ａ・・・巻線
特許出願人 日本電気株式会社
代理人弁理士 井 ノ ロ 壽
ス・６囚
ォ２凶 ２３叩Fig. 1 is an exploded perspective view of the print head assembly showing the prior art, Fig. 2 is a perspective view showing the fixing means when the spring is divided, and Fig. 3 is a perspective view showing that the spring itself is integrated. Figure 5 is a cross-sectional view of the print head in which the armature and core make one-sided contact, and Figure 5 is a cross-sectional view of the print head designed so that the armature and core collide face to face. Figure 1 and 6 are the original F! A perspective view showing one embodiment of the fixed end of the spring of a print head made by AK; the off view is a sectional view of the print head including a spring assembly in which the spring is tilted and the fixed end is integrally molded. The figure is an exploded perspective view of the print head according to the present invention. 1... Magnetic drive unit 2.2 fL, 21) ---, -ya 3.3
a, 3b... Spring 4a... Armature 5... Yoke 6a... Upper clamp 6
b-...Lower clamp 7...Spring assembly 8...
・Rib piece 9a... Winding patent applicant NEC Co., Ltd.'s representative patent attorney Jussu Inoro 6 prisoners 2 23 hits
Claims (1)
、一端に印字ワイヤが固定され、中間部に前記複数のコ
アにそれぞれ対応するアーマチュアが固定されている複
数のスプリングと、ヨークと、クランプ部材とからなシ
、前記各アーマチュアが前記各コアに対し所定の間隙を
作るように前記複数のスプリングの他端を前記クランプ
部材を介して前記磁気駆動部に固定するとともに、前記
各アーマチュアを取囲むように前記ヨークを取付けるこ
と釦よシ前記スプリングの付勢力に抗して前記コアに前
記アーマチュアを吸引させ、前記巻線に磁気を打消す電
流を流し、前記スプリングを解放することによって印字
を行なう印字ヘッドにおいて、前記クランプ部材を前記
複数のスプリングの他端を収容してモールド成形し、複
数のスプリング他端とクランプ部材を一体構造にしたこ
とを特徴とする印字ヘッド。a magnetic drive unit having a plurality of cores around which windings are wound; a plurality of springs having printing wires fixed to one end thereof and armatures corresponding to the plurality of cores respectively fixed to the middle part thereof; and a yoke. and a clamp member, the other ends of the plurality of springs are fixed to the magnetic drive unit via the clamp member so that each of the armatures creates a predetermined gap with respect to each of the cores, and attaching the yoke so as to surround the armature; causing the armature to be attracted to the core against the biasing force of the spring; and applying a current to the winding to cancel magnetism to release the spring. 1. A print head for performing printing, characterized in that the clamp member is molded to accommodate the other ends of the plurality of springs, so that the other ends of the plurality of springs and the clamp member are integrally constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10105182A JPS58217374A (en) | 1982-06-11 | 1982-06-11 | Printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10105182A JPS58217374A (en) | 1982-06-11 | 1982-06-11 | Printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58217374A true JPS58217374A (en) | 1983-12-17 |
Family
ID=14290316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10105182A Pending JPS58217374A (en) | 1982-06-11 | 1982-06-11 | Printing head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58217374A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882987A (en) * | 1984-04-27 | 1989-11-28 | Nec Home Electronics Ltd. | Attaching device in a spring-charged dot printer |
| EP0343965A2 (en) * | 1988-05-25 | 1989-11-29 | Seiko Epson Corporation | Impact dot printing head |
-
1982
- 1982-06-11 JP JP10105182A patent/JPS58217374A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882987A (en) * | 1984-04-27 | 1989-11-28 | Nec Home Electronics Ltd. | Attaching device in a spring-charged dot printer |
| EP0343965A2 (en) * | 1988-05-25 | 1989-11-29 | Seiko Epson Corporation | Impact dot printing head |
| US5024543A (en) * | 1988-05-25 | 1991-06-18 | Seiko Epson Corporation | Impact dot print head |
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