JPS59140070A - Armature supporter of dot printer head - Google Patents
Armature supporter of dot printer headInfo
- Publication number
- JPS59140070A JPS59140070A JP1421983A JP1421983A JPS59140070A JP S59140070 A JPS59140070 A JP S59140070A JP 1421983 A JP1421983 A JP 1421983A JP 1421983 A JP1421983 A JP 1421983A JP S59140070 A JPS59140070 A JP S59140070A
- Authority
- JP
- Japan
- Prior art keywords
- armature
- fulcrum
- yoke
- radius
- center
- 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.)
- Granted
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
- B41J2/28—Actuators for print wires of spring charge type, i.e. with mechanical power under electro-magnetic control
-
- 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】
発明の技術分野
この発明は、ドツトプリンタヘッドのアマチュア支持装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION This invention relates to an armature support device for a dot printer head.
発明の技術的背景及びその問題点
この種のものは、電磁コイルを保持するコアの端面に対
向させたアマチュアを、ｔｉミコイル励磁作用によシ回
動させ、これにより、ニードルをプラテンにインパクト
させて印字を行なうものである。ニードルのストローク
とインパクトの力とは印字特性に重大な影響を与え、し
たがって、アマチュアの支点の位置が滑゛シ等によって
変ってはならない。Technical background of the invention and its problems In this type of invention, an armature facing the end face of a core holding an electromagnetic coil is rotated by the tim coil excitation action, thereby causing the needle to impact the platen. Printing is performed using The stroke of the needle and the force of the impact have a significant effect on the print characteristics, so the position of the armature fulcrum must not be altered by slippage or the like.
このことから、第１図及び第２図に示すように、ニード
ル（Ａ）を駆動するアマチュア（Ｂ） ’に電磁コイル
（Ｑが保持されたコア（ロ）に対向させ、このアマチュ
ア（Ｂ）の−面に半円状の凹部＠全形成し、この凹部（
ト）を支える半円状の支点（ト）を有する支持部材（Ｇ
） を設は念発明が存する（特開昭５３−１４０１１８
号公報参照）。From this, as shown in Figures 1 and 2, an armature (B)' that drives the needle (A) is placed opposite to a core (B) holding an electromagnetic coil (Q), and this armature (B) A semicircular recess @ is completely formed on the - side, and this recess (
A support member (G) having a semicircular fulcrum (G) supporting the support member (G)
) was originally invented (Japanese Patent Application Laid-Open No. 53-140118)
(see publication).
しかしながら、凹部（６）と支点Ｃ）の形状全一致させ
ることは構造上困難であり、動作が不円滑になるか逆に
遊びによって支点（ト）に対してアマチュア（Ｂ）が動
き、ニードルのストローク及びインパクトの力にバラツ
キを生じさせる悪影響を及ぼす。However, it is structurally difficult to completely match the shapes of the recess (6) and the fulcrum C), and the operation may become unsmooth, or conversely, the armature (B) may move relative to the fulcrum (G) due to play, and the needle This has an adverse effect of causing variations in stroke and impact force.
また、第３図に示すようにア′マチュア（６）に牛円状
又はＶ字状の支点部）全形成し、この支点（Ｆ） ｋ受
ける凹部（ト）が形成された支持部材（Ｇ） ｔ−設け
、あるいは、凹部（ト）に受けられる支点（ト）に代え
て第４図に示すようにビン（Ｉ） ｅアマチュア（ロ）
に設けたものが存する（特開昭５３−１４５７２２号公
報参照）。In addition, as shown in Fig. 3, the armature (6) is completely formed with a circular or V-shaped fulcrum part, and the supporting member (G) is formed with a recessed part (G) for receiving this fulcrum (F) ) Instead of a fulcrum (G) that is provided or received in a recess (G), as shown in Figure 4, a bottle (I) e armature (B)
There is a device provided with the above (see Japanese Patent Application Laid-open No. 145722/1983).
このようなものも、凹部（ト）や支点（ト）の形状寸法
を一致させることが困難であり、ピン（Ｉ）の位置決め
も精度を要するため、支点の位置が動き易い。In such a device, it is difficult to match the shape and dimensions of the recess (G) and the fulcrum (T), and positioning of the pin (I) also requires precision, so the position of the fulcrum is likely to move.
したがって、第１図及び第２図に示したものと同様の欠
点を有している。Therefore, it has the same drawbacks as shown in FIGS. 1 and 2.
発明の目的
この発明は上述のような点に鑑みなされたもので、アマ
チュアの動きを円滑にし、しかも支点の位置全正確に定
めうるドツトプリンタヘッドのアマチュア支持装置をう
ろことを目的とするものである。Purpose of the Invention The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide an armature support device for a dot printer head that allows smooth movement of the armature and allows for accurate positioning of the fulcrum. .
発明の概要
この発明は、アマチュアの一面に突出した支点をヨーク
のフラット面により支えることにより、アマチュアΩ回
動運動を円滑にし支点部の寸法形状のバラツキを許容し
て製作を簡略化し、また、前記支点から離れた両側位置
で弧状のガイドによってアマチュアを摺動自在に保持し
、したがって、支点部のバラツキに左右されることなく
アマチュアの回動支点からニードル端部までの距離を一
定に定め、均一な印字を行ないつるように構成したもの
である。SUMMARY OF THE INVENTION This invention supports the fulcrum protruding from one side of the armature by the flat surface of the yoke, thereby smoothing the armature's Ω rotational movement, allowing for variations in the dimensions and shape of the fulcrum, and simplifying manufacturing. The armature is slidably held by arc-shaped guides at positions on both sides away from the fulcrum, and therefore the distance from the rotation fulcrum of the armature to the end of the needle is set constant regardless of variations in the fulcrum, It is designed to print uniformly and to hang.
発明の実施例
この発明の実施例を第５図ないし第１０図に基いて説明
する。ケーシング部材であるプラスチック製のガイドホ
ルダ（１）とヨークであるドーナツ状のアマチュアヨー
ク（２）とカップ状に形成されたヨーク（３）とが重積
状態で組立てられている。ヨーク（３）の底部にはドー
ナツ状の永久磁石（４）が固定され、それぞれ電磁コイ
ル（５）全保持するコア（６）がその基部（７）全永久
磁石（４） Ｋ接合しつつ環状に配列されている。また
、ガイドホルダ（１）ＶＣは複数のアマチュア（８）が
設けられている。これらのアマチュア（８）はコア（６
）の端面に接合する磁性材によるプランジャ（９）とこ
のプランジャ（９）の一部を埋設状態で保持する樹脂片
αＱとよりなる。プランジャ（９）はアマチュアヨーク
（２）に形成した孔０υにスライド自在に保持され、永
久磁石（４）−コア（６）−プランジャ（９）−アマチ
ュアヨーク（２）−ヨーク（３）と循環する磁路が形成
されている。また、各ニードルａ渇は樹脂片（ＩＩの成
形時に後端が埋設される。Embodiment of the Invention An embodiment of the invention will be described with reference to FIGS. 5 to 10. A plastic guide holder (1) which is a casing member, a donut-shaped amateur yoke (2) which is a yoke, and a cup-shaped yoke (3) are assembled in a stacked state. A donut-shaped permanent magnet (4) is fixed to the bottom of the yoke (3), and a core (6) that holds the entire electromagnetic coil (5) is connected to the base (7) of the permanent magnet (4) and forms an annular shape. are arranged in Further, the guide holder (1) VC is provided with a plurality of armatures (8). These amateurs (8) are core (6
) and a resin piece αQ that holds a part of the plunger (9) in an embedded state. The plunger (9) is slidably held in a hole 0υ formed in the amateur yoke (2), and circulates with the permanent magnet (4) - core (6) - plunger (9) - amateur yoke (2) - yoke (3). A magnetic path is formed. Further, the rear end of each needle a is buried during molding of the resin piece (II).
しかして、アマチュア（８）の樹脂片αＩｖｃは、断面
が半円形の形でアマチュアヨーク（２）のフラット面０
階に接合する支点（１４）と、支点α荀ヲ境とする回動
方向両側に位置するとともに支点α４）全半径の中心と
する曲面ｔｉ５１（１６１と、アマチュアスプリングα
力の一端が嵌合される突起Ｑ８）とが一体的に形成され
ている。Therefore, the resin piece αIvc of the armature (8) has a semicircular cross section and the flat surface 0 of the armature yoke (2).
A fulcrum (14) that connects to the floor, a curved surface ti51 (161) located on both sides of the rotation direction bounded by the fulcrum α4, and the center of the entire radius of the fulcrum α4), and an armature spring α
A protrusion Q8) into which one end of the force is fitted is integrally formed.
そして、ガイドホルダ（１）には支点ａ４ヲ半径の中心
として曲面（１５） ｕａ＋ ｉｃ接合する弧状のガイ
ド（１！Ｊｔ２１が一体的に形成され、先端にはニード
ルガイドシυが取付けられている。The guide holder (1) is integrally formed with an arc-shaped guide (1!Jt21) that connects the curved surface (15) ua+ic with the fulcrum a4 as the center of the radius, and a needle guide shaft υ is attached to the tip. .
このような構成において、アマチュア（８）のプランジ
ャ（９）は永久磁石（４）の磁束によりコア（６）に引
き付けられているが、その磁束を打消すように電磁コイ
ル（５）全励磁するとプランジャ（９）がコア（６）か
ら離れる。すなわち、アマチュア（８）はアマチュアス
プリングαＤの力により支点α荀ヲ中心として回動し、
ニードルαａｔプラテンに衝突させて印字し、ふたたび
永久磁石（４）の磁束により復帰する。In this configuration, the plunger (9) of the armature (8) is attracted to the core (6) by the magnetic flux of the permanent magnet (4), but when the electromagnetic coil (5) is fully excited to cancel the magnetic flux, The plunger (9) leaves the core (6). In other words, the armature (8) rotates around the fulcrum α due to the force of the armature spring αD,
The needle αat is caused to collide with the platen to print, and is returned to its original state by the magnetic flux of the permanent magnet (4).
このアマチュア（８）の動作時に支点ａ４はフラット面
（１漕に支えられているのでアマチュア（８）の回動運
動は円滑である。また、アマチュア（８）の曲面（１５
１＋１６１は支点Ｑ４）から離れた位置でガイドσ■１
よシ摺動自在に保持されているので、支点α４の位置が
変ることがない。したがって、ニードルａりのストロー
クとインパクトの力とを均一に定め、印字品質を高める
ことができる。また、支点（１４１はフラット面賭によ
シ支えても滑らないので支点部の寸法や形状をラフにす
ることができ、製作もきわめて容易である。When this armature (8) operates, the fulcrum a4 is supported by a flat surface (1 row), so the rotational movement of the armature (8) is smooth.
1+161 is the guide σ■1 at a position far from the fulcrum Q4)
Since it is held slidably, the position of the fulcrum α4 does not change. Therefore, the stroke of the needle a and the impact force can be set uniformly, and printing quality can be improved. Further, since the fulcrum (141) does not slip even when supported on a flat surface stake, the fulcrum can be rough in size and shape, and is extremely easy to manufacture.
なお、支点Ｉは断面を半円形の形状に定めたが、Ｖ字状
の断面形状にしてもよい。Although the fulcrum I has a semicircular cross section, it may have a V-shaped cross section.
発明の効果
この発明は上述のように構成したので、アマテュアに突
出した支点を７ラツト面に接合させることによりアマチ
ュア全円滑に回動させることができ、また、アマチュア
を支点から離れた位置で弧状のガイドによって保持する
ため、支点の位置を正確に定めニードルのストローク及
びインパクトの力を均一にすることができ、支点の形状
や寸法の許容範囲も広く製作も容易である等の効果を有
するものである。Effects of the Invention Since this invention is constructed as described above, by connecting the protruding fulcrum of the armature to the 7 rat surfaces, the entire armature can be rotated smoothly, and the armature can be rotated in an arc at a position away from the fulcrum. Because it is held by a guide, it is possible to accurately position the fulcrum and make the stroke and impact force of the needle uniform, and the fulcrum has a wide tolerance for shape and size and is easy to manufacture. It is.
第１図は従来のアマチュアの支持構造を示す断面図、第
２図はそのアマチュアの斜視図、第３図は従来のアマチ
ュアの支持構造の他の例を示す断面図、第４図はそのア
マチュアに支点としてピンを立てた状態の側面図、第５
図はこの発明の一実施例を示すもので一部を切欠した平
面図、第６図はそのアマチュア単体の平面図、第７図は
そのアマチュア単体の側面図、第８図はそのアマチュア
単体の斜視図、第９図はそのガイドホルダの断面図、第
１０図はそのガイドホルダ単体の平（２）図である。
１・・・ガイドホルダ（ケーシング部材）、２・・・ア
−ｒ ｆ ニアヨーク（ヨーク）、５・・・電磁コイル
、６・・・コア、８・・・アマチュア、１３・・・フラ
ット面、１４・・・支点、１５．１６・・・曲面、１９
、２０・・・ガイド出 願 人 東京電気株式会
社
、恥 ６関
Ｊ５ −」０
」ｑ川
」○剛
あ９図
１
−凛−１０濶Fig. 1 is a sectional view showing a support structure of a conventional armature, Fig. 2 is a perspective view of the armature, Fig. 3 is a sectional view showing another example of the support structure of a conventional armature, and Fig. 4 is a sectional view of the armature. Side view with the pin set up as a fulcrum, 5th
The figure shows an embodiment of the present invention, and is a partially cutaway plan view, Figure 6 is a plan view of the armature unit, Figure 7 is a side view of the armature unit, and Figure 8 is a side view of the armature unit. A perspective view, FIG. 9 is a sectional view of the guide holder, and FIG. 10 is a plan view (2) of the guide holder alone. DESCRIPTION OF SYMBOLS 1... Guide holder (casing member), 2... Arf near yoke (yoke), 5... Electromagnetic coil, 6... Core, 8... Armature, 13... Flat surface, 14...Fully point, 15.16...Curved surface, 19
, 20...Guide applicant Tokyo Electric Co., Ltd., Shame 6 Seki J5 - "0" q River" ○ Goa 9 Figure 1 - Rin - 10
Claims (1)
を設け、このアマチュアの一面に突出した支点をヨーク
のフラット面に接合させてこのアマチュア金回動自在に
保持し、前記支点を半径の中心とする曲面を前記支点を
境として回動方向の両側に位置させて前記アマチュアに
一体的に形成し、前記アマチュアを囲繞するケーシング
部材に前記支点を半径の中心として前記曲面を摺動自在
に保持する弧状のガイドを設けたことを特徴とするドツ
トプリンタヘッドのアマチュア支持装置。An armature facing the end face of the core that holds the electromagnetic coil is provided, and a fulcrum protruding from one side of the armature is joined to a flat surface of a yoke to hold the armature rotatably, with the fulcrum being the center of the radius. a curved surface is integrally formed on the armature with curved surfaces located on both sides in the rotation direction with the fulcrum as a boundary, and an arc shape that slidably holds the curved surface with the fulcrum as the center of the radius on a casing member surrounding the armature; An armature support device for a dot printer head, characterized in that it is provided with a guide.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1421983A JPS59140070A (en) | 1983-01-31 | 1983-01-31 | Armature supporter of dot printer head |
| DE19833340596 DE3340596A1 (en) | 1982-11-16 | 1983-11-10 | MATRIX PRINTER |
| US06/552,066 US4537520A (en) | 1982-11-16 | 1983-11-15 | Dot printer head with reduced magnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1421983A JPS59140070A (en) | 1983-01-31 | 1983-01-31 | Armature supporter of dot printer head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59140070A true JPS59140070A (en) | 1984-08-11 |
| JPH041698B2 JPH041698B2 (en) | 1992-01-14 |
Family
ID=11854964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1421983A Granted JPS59140070A (en) | 1982-11-16 | 1983-01-31 | Armature supporter of dot printer head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59140070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62109945U (en) * | 1985-12-27 | 1987-07-13 |
-
1983
- 1983-01-31 JP JP1421983A patent/JPS59140070A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62109945U (en) * | 1985-12-27 | 1987-07-13 | ||
| JPH055011Y2 (en) * | 1985-12-27 | 1993-02-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH041698B2 (en) | 1992-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0235669B2 (en) | ||
| JPS6212613Y2 (en) | ||
| JPS59140070A (en) | Armature supporter of dot printer head | |
| JPH06135016A (en) | Dot impact print head | |
| JPS6316526Y2 (en) | ||
| JPH0111468Y2 (en) | ||
| JPH0346915Y2 (en) | ||
| JPH0617547Y2 (en) | Print head of wire type dot printer | |
| JPH06286170A (en) | Printing head for dot printer | |
| JPH0428773Y2 (en) | ||
| JPH0767313A (en) | Stepping motor | |
| JPH046917Y2 (en) | ||
| JPS6348086Y2 (en) | ||
| JPS59114069A (en) | Dot printer head | |
| JPH0534936Y2 (en) | ||
| JP3374897B2 (en) | Impact type dot print head and method of manufacturing the same | |
| JPH0877906A (en) | Electromagnetic actuator | |
| JPH0445891Y2 (en) | ||
| JPS60176774A (en) | Dot printing recorder | |
| JPS5845905Y2 (en) | Printing mechanism | |
| JP2897527B2 (en) | Print head | |
| JPH0234037Y2 (en) | ||
| JPS5836471A (en) | Printing stylus driver for printer | |
| JPH0351588B2 (en) | ||
| JPS59155057A (en) | Dot printer head |