JPS5989174A - Printing head for wire dot printer - Google Patents
Printing head for wire dot printerInfo
- Publication number
- JPS5989174A JPS5989174A JP19943882A JP19943882A JPS5989174A JP S5989174 A JPS5989174 A JP S5989174A JP 19943882 A JP19943882 A JP 19943882A JP 19943882 A JP19943882 A JP 19943882A JP S5989174 A JPS5989174 A JP S5989174A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- lever
- printing head
- printing
- dot printer
- 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
- B41J2/235—Print head assemblies
- B41J2/25—Print wires
- B41J2/26—Connection of print wire and actuator
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明にワイヤドツトプリンタ用印字ヘッドに関するも
のであシ、更に畦しくは印字ワイヤの結合方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a print head for a wire dot printer, and more particularly to a method for connecting print wires.
従来印字ヘッドLt駆動方法によりバネチャージ型電磁
石型などのワイヤドツトプリンタ用ヘッドがあシ、特公
昭56−46989.特開昭57−110462に示さ
れるようにこれらの型のヘッドにおいて印字ワイヤはア
ーマチャの先9114とワイヤを突合わせてロー付など
で結合する方法がとられていた。A wire dot printer head such as a spring-charged electromagnetic type is damaged due to the conventional printing head Lt driving method, Japanese Patent Publication No. 56-46989. As shown in Japanese Unexamined Patent Publication No. 57-110462, in these types of heads, a method was used in which the printing wire was butted against the tip 9114 of the armature and joined by brazing or the like.
このような構造をとっていたので、作業性が悪く、接合
強度を上げることが難しかった。そのためワイヤとの接
触面積を増やすアーマチャ形状にしていたので、駆動部
の慣性質量が増加し、てワイヤの応答性が悪くなったシ
、ワイヤに高熱がかかるためワイヤが劣化し強度が低下
してしまうというような欠点があった。With this structure, workability was poor and it was difficult to increase the bonding strength. For this reason, the armature was shaped to increase the contact area with the wire, which increased the inertial mass of the drive part, which worsened the wire's response.The wire was also exposed to high heat, causing it to deteriorate and its strength to decrease. It had some drawbacks, such as being stowed away.
他の従来技術としては、アーマチャの先端にあけた穴に
ワイヤを通してロー付で゛結合するという方法(特開昭
57−88561)があるが、部品形状が復雑になるの
で部品の加工性が悪くな9、組立性も悪いというような
欠点があった。Another conventional technique involves passing a wire through a hole drilled at the tip of the armature and joining it with brazing (Japanese Patent Application Laid-Open No. 57-88561), but the shape of the parts becomes complicated and the workability of the parts is poor. Bad 9: It had drawbacks such as poor assembly.
本発明はこれらの欠点を除去したもので、その目的は作
業性が良く、十分なワイヤ結合部1(1をイJする印字
ヘッドを提供することにある。The present invention eliminates these drawbacks, and its purpose is to provide a print head that is easy to work with and has a sufficient number of wire connections.
以下、本発明の実施例を図面に基づいて詳MK説明する
。Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
第】図は本発明の一実施例を示す印字ヘッドの断面シj
%第2図はその駆動ユニットの分解図である。Figure 1 is a cross-sectional view of a print head showing an embodiment of the present invention.
Figure 2 is an exploded view of the drive unit.
下ヨーク3にコア2を固定し、上ヨーク4との間VC永
久磁石1f:tよさみ込み固定軸12を用いて固定する
。板ばね7の自由端部にはレバー8がブランジャ6Vc
よp一体にかしめらノする。レバー8は薄板からなシ、
&13図に示すように先端はワイヤ9′f:巻込む形状
とし、両者は抵抗溶接で固着される。板ばね7は上ヨー
ク4と押え板用の間に固定軸j2によル締結固定される
。コア2に巻回されるコイル5の2つの電極端子15
、16はばね性を有してくる。この駆動ユニット加は単
独に組立〜M整後、ヘッド本体に着脱可能である。The core 2 is fixed to the lower yoke 3 and fixed to the upper yoke 4 using a fixed shaft 12 that is inserted into the VC permanent magnet 1f:t. A lever 8 is attached to a plunger 6Vc at the free end of the leaf spring 7.
Let's all get together. Lever 8 is made of thin plate.
&13 As shown in Figure 13, the tip is shaped like a wire 9'f: rolled up, and both are fixed by resistance welding. The leaf spring 7 is fastened and fixed between the upper yoke 4 and the presser plate by a fixed shaft j2. Two electrode terminals 15 of the coil 5 wound around the core 2
, 16 have spring properties. This drive unit can be attached to and detached from the head body after being individually assembled and adjusted.
ヘッド本体への組込はヘッドフレームl:3のガイド穴
1:(αに駆動ユニットの突起10αを係合させて行な
い、配線基板J7の対応するパターンと電極端子15
、16を圧接して電気的接続が行なわり、る。ヘットフ
レーム13ト駆動ユニツト間にはゴムシート14を介在
させて各駆動ユニット間の長さのパラツキによる組立上
の不具合を防止するとともに、騒音の発生を防止する。The assembly into the head body is carried out by engaging the protrusion 10α of the drive unit with the guide hole 1:(α of the head frame l:3, and then aligning the corresponding pattern of the wiring board J7 with the electrode terminal 15).
, 16 are pressed together for electrical connection. A rubber sheet 14 is interposed between the head frame 13 and the drive unit to prevent assembly problems due to uneven lengths between the drive units and to prevent noise generation.
レバーガイド冴はレバー8の側面を案内するスリットを
有し、レバー作動時の第1図紙面垂直方向の振動を防止
するととも駆動ユニットの組込の際の位置決めの機能も
有する。The lever guide has a slit that guides the side surface of the lever 8, and has the function of preventing vibration in the direction perpendicular to the plane of the first drawing when the lever is actuated, and also has a positioning function when installing the drive unit.
更に、押え板IC)の一部1ocはレバー8の待機位置
における度当シとして用いられ、レバー8との衝突面に
けゴム材で形成されるストッパ11が取付られている。Further, a portion 1oc of the presser plate IC) is used as a stopper when the lever 8 is in the standby position, and a stopper 11 made of a rubber material is attached to the collision surface with the lever 8.
裏蓋5を固定ばね26によシヘッドフレーム13に固定
すること忙よシ、ヘッドが組立てられる。After fixing the back cover 5 to the head frame 13 using the fixing spring 26, the head is assembled.
次に動作を説明する。プランジャ6は永久磁石1の磁束
によってコア2に吸引され、板ばね7が偏倚保持される
1、永久磁石1の磁界を打消す方向にコイル5に一定時
間通電すると、前記吸引状態が解放され、板ばねの弾性
力によフレバー8は回転し、先端に固着されたワイヤ9
f:矢印方向に突出させる。ワイヤ9け図示していない
インクリボンを介してIO録紙に衝突しドツトを形成す
る。通電1しゃ門徒、プランジャ6け再び吸引さノ1、
ワイヤ9も待機位置に復帰する。Next, the operation will be explained. The plunger 6 is attracted to the core 2 by the magnetic flux of the permanent magnet 1, and the leaf spring 7 is biased and held 1. When the coil 5 is energized for a certain period of time in a direction that cancels the magnetic field of the permanent magnet 1, the attracted state is released. The lever 8 rotates due to the elastic force of the leaf spring, and the wire 9 fixed to the tip
f: Protrude in the direction of the arrow. The nine wires collide with the IO recording paper via an ink ribbon (not shown) to form dots. 1 energized disciple, 6 plungers sucked again 1,
The wire 9 also returns to the standby position.
第3図に示した!うに、薄板からなるレバー8で、板バ
ネ7の自由端部とワイヤ9を結合する構成と11、レバ
ー8はワイヤ9との結合部でワイヤ9を巻き込む形状に
曲げられ抵抗溶接で両者を固着しであるので、部品形状
が簡単になり部品加工性が良く、ワイヤ9とレバー8と
の接触部長さを犬きくとっても慣性質量が小さいため、
低慣性でしかも高い結合強度が得られる。また力(抗溶
接はご〈短時間しか局所的に高温がかからないためワイ
ヤ9のレバー8との接合部に大きな熱負荷がかからず、
ワイヤ9の強度が確保でき、ロー付と比較して作業が短
時間で容易にできる。、また、結合部が突・合せでない
ので、ワイヤ9とレバー8の相対位lid;、決めが容
易となシ作業性が向上する。Shown in Figure 3! 11, the lever 8 is made of a thin plate and connects the free end of the leaf spring 7 to the wire 9; the lever 8 is bent into a shape that wraps around the wire 9 at the joint with the wire 9, and the two are fixed together by resistance welding. Because of this, the part shape is simple and the part workability is good, and even if the length of the contact part between the wire 9 and the lever 8 is shortened, the inertial mass is small.
High bond strength can be obtained with low inertia. In addition, since the force (anti-welding) only applies high temperature locally for a short period of time, there is no large thermal load applied to the joint of the wire 9 with the lever 8.
The strength of the wire 9 can be ensured, and the work can be done more easily and in a shorter time than brazing. Furthermore, since the joint is not butted or matched, the relative position of the wire 9 and the lever 8 can be determined easily, improving workability.
なお、本発明は実施例で説明したバネチャージ方式以外
の他の駆動方式にも適用可能なことはいうまでもない。It goes without saying that the present invention is also applicable to other driving methods other than the spring charge method described in the embodiments.
以上説明したように本発明によれば薄板のレバー先端部
を曲げてワイヤを巻き込んで抵抗溶接によりワイヤを固
定することにより、作業性が従来と比較して良くなシ、
十分なワイヤ結合強度を得ることが出来る。また薄板レ
バーを使用するため駆動部分が軽量となシ慣性質量が小
さくなるので、高応答可能々ワイヤドツトプリンタ用印
字ヘッドを提供できる。As explained above, according to the present invention, by bending the tip of the thin plate lever, winding the wire, and fixing the wire by resistance welding, workability is improved compared to the conventional method.
Sufficient wire bonding strength can be obtained. Furthermore, since the thin plate lever is used, the drive part is lightweight and the inertial mass is small, so a print head for wire dot printers that can provide high response can be provided.
第1図は本発明の一実施例を示す印字ヘッドの断面図、
第2図はその駆動ユニットの分解図、第3図はレバーと
ワイヤの結合状態を示す図である。
6・・プランジャ 7−・板ばね 8・Qレバー 9・
・ワイヤ
以 上
出願人 エプソン株式会社
代理人 弁理土星 上 務FIG. 1 is a sectional view of a print head showing an embodiment of the present invention;
FIG. 2 is an exploded view of the drive unit, and FIG. 3 is a diagram showing the state in which the lever and wire are connected. 6. Plunger 7-. Leaf spring 8. Q lever 9.
・Wire and above Applicant Epson Corporation Agent Saturn Senior Patent Attorney
Claims (1)
結合さhた印字ヘッドにおいて、前記レバーは前記印字
ワイヤとの結合部分が前記印字ワイヤを巻き込む形状に
曲げられているととを特徴とするワイヤドツトプリンタ
用印字ヘッド。 2、前記レバーと前記印字ワイヤは抵抗溶接により固着
さノ1.ていることを特徴とする特許請求の範囲第1項
記載のワイヤドツトプリンタ用印字ヘッド。[Claims] ], In a print head in which a printing wire is coupled to an end of a lever, the lever may be bent in a shape where the coupling portion with the printing wire is wound around the printing wire. A print head for wire dot printers that features a wire dot printer. 2. The lever and the printing wire are fixed together by resistance welding.1. A print head for a wire dot printer according to claim 1, characterized in that:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19943882A JPS5989174A (en) | 1982-11-12 | 1982-11-12 | Printing head for wire dot printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19943882A JPS5989174A (en) | 1982-11-12 | 1982-11-12 | Printing head for wire dot printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5989174A true JPS5989174A (en) | 1984-05-23 |
Family
ID=16407813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19943882A Pending JPS5989174A (en) | 1982-11-12 | 1982-11-12 | Printing head for wire dot printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5989174A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02147248A (en) * | 1988-11-30 | 1990-06-06 | Hitachi Ltd | Printing head |
-
1982
- 1982-11-12 JP JP19943882A patent/JPS5989174A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02147248A (en) * | 1988-11-30 | 1990-06-06 | Hitachi Ltd | Printing head |
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