JPH02155748A - Impact dot head - Google Patents
Impact dot headInfo
- Publication number
- JPH02155748A JPH02155748A JP31127188A JP31127188A JPH02155748A JP H02155748 A JPH02155748 A JP H02155748A JP 31127188 A JP31127188 A JP 31127188A JP 31127188 A JP31127188 A JP 31127188A JP H02155748 A JPH02155748 A JP H02155748A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- lever
- guide
- side pressure
- guide hole
- 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
- 238000005452 bending Methods 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux 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
- B41J2/235—Print head assemblies
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
し産業上の利用分野]
本発明はインパクトドツトプリンタの印字ヘッドに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a print head for an impact dot printer.
[発明が解決しようとする課題]
しかし、従来のワイヤガイドの孔位置配列では、各印字
ワイヤは機構上、案内ガイドからそれぞれ異なる側圧力
を受け、したがってワイヤ復帰バネ力を各ワイヤ同一に
した場合、ワイヤに作用する負荷は、ガイドからの異な
る側圧カブラス復帰バネ力となる為、飛行時間のバラツ
キ、及び印字力のバラツキが生じ、しいては印字品質を
劣化させるといった問題が派生する。また、各ワイヤに
作用する負荷を一定とする為、各復帰バネ力の調整つま
り各復帰バネの形状を変えた場合は、一応上記問題は解
決され得るが、バネの識別等により、組立性を著しく害
するといった新たな問題を生じてしまう。[Problems to be Solved by the Invention] However, in the hole position arrangement of the conventional wire guide, each printing wire receives different side pressures from the guide guide due to the mechanism, and therefore, when the wire return spring force is made the same for each wire, Since the load acting on the wire is a different lateral pressure return spring force from the guide, variations in flight time and printing force occur, resulting in problems such as deterioration of printing quality. In addition, in order to keep the load acting on each wire constant, the above problem can be solved by adjusting the force of each return spring, that is, by changing the shape of each return spring, but the ease of assembly can be improved by identifying the springs, etc. This will create new problems such as significant harm.
そこで本発明は従来のこの様な問題点を解決する1、−
め、ワイヤに作用する側圧力を均一にし、印字品質に優
れ、かつ組立が容易なインパクトドツトヘッドを提供す
ることを目的とする。Therefore, the present invention solves these conventional problems.1.-
Therefore, it is an object of the present invention to provide an impact dot head that uniformizes the side pressure acting on the wire, has excellent printing quality, and is easy to assemble.
[課題を解決するための手段]
上記課題を解決するため、本発明のインパクトドツトヘ
ッドは、レバーから最も近いワイヤガイドの孔位置をレ
バーと対応させ、ヘッド軸心を中心に円周状に設けたこ
とを特徴とする。[Means for Solving the Problems] In order to solve the above problems, the impact dot head of the present invention has holes in the wire guide closest to the lever that are arranged in a circumferential manner around the axis of the head so as to correspond to the lever. It is characterized by:
[作用]
上記の様に構成されたインパクトドツトヘッドは、各々
のワイヤの負荷力を容易に一定とすることができ、高印
字品質で組立性に優れたインパクトドツトヘッドを得る
ことができる。[Function] The impact dot head configured as described above can easily make the load force of each wire constant, and it is possible to obtain an impact dot head with high print quality and excellent assemblability.
[実施例]
以下に本発明の実施例を図面にもとづいて説明する。第
1図は本発明のインパクトドツトヘッドの断面図である
。第1図上半分には電磁コイル2に通電しない待機時の
状態を示し、下半分には電磁コイル2に通電した印字時
の状態を示しである待機時には復帰バネ4によりレバー
3はストッパー7に押しつけられ、レバー3に係合した
ワイヤ6は、非印字位置に付勢されている。[Examples] Examples of the present invention will be described below based on the drawings. FIG. 1 is a sectional view of the impact dot head of the present invention. The upper half of Figure 1 shows the standby state when the electromagnetic coil 2 is not energized, and the lower half shows the printing state when the electromagnetic coil 2 is energized.During standby, the lever 3 is moved to the stopper 7 by the return spring 4. The wire 6 that is pressed and engaged with the lever 3 is biased to the non-printing position.
印字時には、電磁コイル2に通電することにより、コイ
ルコア1で発生した磁束により、レバー6はコイルコア
1へ吸引され、先端に保持したワイヤ6を介して記録紙
8上に打接し印字を行う。During printing, when the electromagnetic coil 2 is energized, the lever 6 is attracted to the coil core 1 by the magnetic flux generated in the coil core 1, and is struck onto the recording paper 8 via the wire 6 held at the tip to perform printing.
第2図は本発明の特徴部分をなすレバー3より最も近い
ワイヤガイド部材5の詳細を示した拡大図である。複数
のレバー5が、ヘッド軸心より、放射状に等分割して己
設され、レバー3に最も近いワイヤガイド5のガイド孔
5αの位置をレバー5と対応させ、ヘラ下軸心を中心に
円周上に設けられている。FIG. 2 is an enlarged view showing details of the wire guide member 5 closest to the lever 3, which is a feature of the present invention. A plurality of levers 5 are arranged in equal radial divisions from the head axis, and the position of the guide hole 5α of the wire guide 5 closest to the lever 3 corresponds to the lever 5, and the levers 5 are arranged in a circle around the lower axis of the spatula. It is placed around the circumference.
第5図は第2図の断面拡大図である。各レバー5の先端
に係合している各々のワイヤ6がワイヤガイド孔5α、
9α、10αから受ける側圧力は、購造力学上、レバー
3から最も近いワイヤガイド5のガイド孔5α位置によ
り大方決ってしまうしたがって、各ワイヤ3のタワミ角
θが同一となり、1つまりガイド孔5αからの側圧カブ
ラス復帰バネ力が、どのワイヤ6も一定となる様に設定
されている為、各ワイヤ6の印字力、飛行時間のバラツ
キが無くなり、各ワイヤ6の安定した挙動が得られる。FIG. 5 is an enlarged cross-sectional view of FIG. 2. Each wire 6 engaged with the tip of each lever 5 has a wire guide hole 5α,
The side pressure received from 9α and 10α is largely determined by the position of the guide hole 5α of the wire guide 5 closest to the lever 3 due to purchasing mechanics. Since the lateral pressure return spring force from the wire 6 is set to be constant for all wires 6, there is no variation in the printing force and flight time of each wire 6, and stable behavior of each wire 6 is obtained.
[発明の効果]
以上説明したように本発明によれば、個々のワイヤがガ
イド孔から受ける側圧力が同一となる様ワイヤの側圧力
を決定する、レバーから最も近いメイドにて、各ワイヤ
と対応する各ガイド孔の位置関係を同様にすることによ
り、ワイヤの負荷力、つ壕り、側圧カブラス復帰バネ力
を、個々のワイヤにて同一力量とし、ワイヤの印字力、
飛行時間のバラツキを抑制し、高印字品質を可能とする
。尚且つ、個々のワイヤにて同一復帰バネを使用できる
為、組立性の大幅な向上が可能となる。[Effects of the Invention] As explained above, according to the present invention, the maid closest to the lever determines the side pressure of the wire so that the side pressure that each wire receives from the guide hole is the same. By making the positional relationship of the corresponding guide holes the same, the wire load force, trenchment, and lateral pressure return spring force are the same for each wire, and the printing force of the wire,
Suppresses variations in flight time and enables high print quality. Furthermore, since the same return spring can be used for each wire, it is possible to greatly improve assembly efficiency.
第1図は本発明の実施例を示す断面図。
第2図は本発明の要部の詳細図。
第3図は第2図の断面拡大図である。
1・・・・・・・・・コイルコア
2・・・・・・・・・電磁コイル
3 ・・・ ・・・ ・・・ し ツク−4・・・・・
・・・・復帰バネ
5・・・・・・・・・ワイヤガイ、ド
5α・・・・・・ガイド孔
6・・・・・・・・・ワイヤ
7・・・・・・・・・ストッパー
8・・・・・・・・・記録紙
9・・・・・・・・・ワイヤガイド
9α・・・・・・ガイド孔
10・・・・・・先端ガイド
1012・・・ガイド孔FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a detailed diagram of the main part of the present invention. FIG. 3 is an enlarged cross-sectional view of FIG. 2. 1... Coil core 2... Electromagnetic coil 3... Tsuku-4...
...Return spring 5...Wire guide, de 5α...Guide hole 6...Wire 7...Stopper 8... Recording paper 9... Wire guide 9α... Guide hole 10... Tip guide 1012... Guide hole
Claims (1)
等分割して配設され、前記レバーと結合したワイヤーを
整列させる複数のガイドを有したインパクトドットヘッ
ドに於いて、前記レバーに最も近いワイヤガイドのガイ
ド孔をレバーと対応させ、ヘッド軸心を中心とする円周
上に配置したことを特徴とするインパクトドットヘッド
。In an impact dot head in which at least a plurality of levers are arranged in equal radial divisions from the head axis, and a plurality of guides for aligning wires coupled to the levers, a wire guide closest to the lever is provided. An impact dot head characterized by having a guide hole that corresponds to the lever and arranged on the circumference around the head axis.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31127188A JPH02155748A (en) | 1988-12-09 | 1988-12-09 | Impact dot head |
SG1995906947A SG26407G (en) | 1988-12-09 | 1989-12-07 | Wire-dot printer having printing wire driving device and manufacturing method thereof |
EP89122589A EP0372557B1 (en) | 1988-12-09 | 1989-12-07 | Wire-dot printer having printing wire driving device and manufacturing method thereof |
DE89122589T DE68910946T2 (en) | 1988-12-09 | 1989-12-07 | Dot-matrix printer with needle drive and method for its manufacture. |
US07/449,691 US5174663A (en) | 1988-12-09 | 1989-12-11 | Wire dot print head and method for manufacturing same |
US07/886,698 US5281037A (en) | 1988-12-09 | 1992-05-20 | Wire dot print head and method for manufacturing same |
US08/093,913 US5368401A (en) | 1988-12-09 | 1993-07-20 | Wire dot print head with rotating lever |
US08/310,091 US5527118A (en) | 1988-12-09 | 1994-09-22 | Wire dot print head and method for manufacturing same |
HK72595A HK72595A (en) | 1988-12-09 | 1995-05-11 | Wire-dot printer having printing wire driving device and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31127188A JPH02155748A (en) | 1988-12-09 | 1988-12-09 | Impact dot head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02155748A true JPH02155748A (en) | 1990-06-14 |
Family
ID=18015130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31127188A Pending JPH02155748A (en) | 1988-12-09 | 1988-12-09 | Impact dot head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02155748A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6161864A (en) * | 1984-09-03 | 1986-03-29 | Nhk Spring Co Ltd | Printing head |
JPS6228536B2 (en) * | 1978-09-20 | 1987-06-20 | Tokyo Shibaura Electric Co | |
JPH02108555A (en) * | 1988-10-19 | 1990-04-20 | Brother Ind Ltd | Method for mounting wire dot type printing head |
-
1988
- 1988-12-09 JP JP31127188A patent/JPH02155748A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6228536B2 (en) * | 1978-09-20 | 1987-06-20 | Tokyo Shibaura Electric Co | |
JPS6161864A (en) * | 1984-09-03 | 1986-03-29 | Nhk Spring Co Ltd | Printing head |
JPH02108555A (en) * | 1988-10-19 | 1990-04-20 | Brother Ind Ltd | Method for mounting wire dot type printing head |
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