JPS6015468B2 - dot print head - Google Patents
dot print headInfo
- Publication number
- JPS6015468B2 JPS6015468B2 JP11040780A JP11040780A JPS6015468B2 JP S6015468 B2 JPS6015468 B2 JP S6015468B2 JP 11040780 A JP11040780 A JP 11040780A JP 11040780 A JP11040780 A JP 11040780A JP S6015468 B2 JPS6015468 B2 JP S6015468B2
- Authority
- JP
- Japan
- Prior art keywords
- armature
- hammer
- dot
- print head
- dot print
- 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.)
- Expired
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)
Description
【発明の詳細な説明】
本発明は磁気漏洩形のドットプリントヘッド‘こ関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to magnetic leakage type dot print heads.
従来、インクパクト式のドットプリントヘッドにおいて
は、電磁石の磁気回路はコア、ヨーク、及びアーマチュ
アに強磁性体を用いて閉磁路を構成し極力磁束の漏れを
防止して、アーマチュアギャップを電磁石の吸引力の強
い範囲に置いて使用していた。Conventionally, in ink-pact type dot print heads, the magnetic circuit of the electromagnet uses ferromagnetic material for the core, yoke, and armature to form a closed magnetic path to prevent leakage of magnetic flux as much as possible, and the armature gap is used to attract the electromagnet. It was used by placing it in a strong area.
以下図面に従って説明する。This will be explained below according to the drawings.
第１図は閉磁路を有する電磁石のアーマチュアギャップ
と吸引力との関係を示す図で、所望のインクパクト力を
得るためには吸引力の強い左方の部分を使用している。FIG. 1 is a diagram showing the relationship between the armature gap of an electromagnet having a closed magnetic path and the attractive force. In order to obtain the desired ink compaction force, the left portion where the attractive force is strong is used.
したがって同図からも明らかなように、アーマチュアギ
ャップがわずか違っても、吸引力が相当異なるため、各
ドットによってインパクト力に差を生じ、したがって、
ドット毎の印字濃度に差が出来ると言う欠点があった。
このため、各ドット毎のアーマチュアギャップを正確に
調整しなければならないため、工数がかかり、さらに部
品点数も多いため高価となる欠点があった。そこで、本
発明は磁気漏洩形のドットプリントヘッドを構成すると
共にプラスチック成形によって簡単な構造のドットプリ
ントヘッドを提供するものである。Therefore, as is clear from the figure, even if the armature gap is slightly different, the suction force is considerably different, causing a difference in the impact force for each dot, and therefore,
There was a drawback that there was a difference in print density for each dot.
Therefore, it is necessary to accurately adjust the armature gap for each dot, which requires a lot of man-hours, and also requires a large number of parts, resulting in high costs. Therefore, the present invention provides a dot print head of a magnetic leakage type and a simple structure made of plastic molding.
以下図面に従って説明する。This will be explained below according to the drawings.
第２図は、本発明に係る磁気ヘッドの正面図、第３図は
第２図のＡ−Ａ′断面図である。FIG. 2 is a front view of the magnetic head according to the present invention, and FIG. 3 is a sectional view taken along line AA' in FIG.
同図において、１はドット印字部材で先端に硬質物質を
めつき等によって付着している。２は先端に前記ドット
印字部材１を備え、中央部付近は二股に分かれ、他端は
又合流していると共に強磁性材からなるアーマチュア３
を固着しているハンマ、４は該ハンマ２と一体にプラス
チック等で成形され前記池端から前記ハンマ２の二股に
分かれた中央に延びるヒンジ部５を有する支持部材、６
は該支持部材４を図示せぬキャリア等に固定するための
ねじ穴、７は前記アーマチュア３に対応して設けられた
コイルで、充填剤８たとえばェボキシ系充填剤であるＥ
Ｍ旧ＲＳＯＮ＆ＣＵＭＩＮＧ社製ＳＴＹＣＡＳＴという
商品によって前記支持部村４に固定されている。In the figure, numeral 1 is a dot printing member having a hard substance attached to its tip by plating or the like. 2 has the dot printing member 1 at its tip, is divided into two parts near the center, and is joined at the other end, and has an armature 3 made of a ferromagnetic material.
A support member 6 is molded integrally with the hammer 2 from plastic or the like and has a hinge portion 5 extending from the end to the bifurcated center of the hammer 2.
7 is a screw hole for fixing the supporting member 4 to a carrier (not shown), 7 is a coil provided corresponding to the armature 3, and a filler 8 is E, which is an eboxy filler, for example.
It is fixed to the support section 4 using a product called STYCAST manufactured by RSON & CUMING.
次に本発明の動作を説明する。Next, the operation of the present invention will be explained.
コイル７に通電しない状態ではアーマチュア３はハンマ
２によって一部をコイル７中央の孔に遊挿されている。
今コイル７に通電されるとアーマチュア３は吸引されコ
イル内へ移動するためヒンジ部５が屈折する。したがっ
て、ハンマ２は時計方向に回鰯しドット印字部材１は突
出し図示せぬ印字用紙にドット文字を印字する。When the coil 7 is not energized, a portion of the armature 3 is loosely inserted into the center hole of the coil 7 by the hammer 2.
When the coil 7 is now energized, the armature 3 is attracted and moves into the coil, causing the hinge portion 5 to bend. Therefore, the hammer 2 rotates clockwise and the dot printing member 1 protrudes to print dot characters on a printing paper (not shown).
次に、第４図は、本発明に使用した磁気漏洩形電磁石の
アーマチュアギャップと吸引力との関係を示す図で、同
図でも明らかなように、吸引力はアーマチュアギャップ
にあまり影響されない。Next, FIG. 4 is a diagram showing the relationship between the armature gap and attractive force of the magnetic leakage electromagnet used in the present invention. As is clear from the figure, the attractive force is not greatly influenced by the armature gap.
すなわち、磁気漏洩形電磁石は、強磁性体からなる磁路
というものがない空芯コイルを用い、その近傍または内
部にアーマチュアを配設し、この空芯コイルに通電した
電流とこれにより生じた漏れ磁束との相互作用による力
でこのアーマチュアを吸引するようにしたものであり、
いわゆる対向磁極というものがないので、アーマチユア
ギヤツプを移動するアーマチュアの移動量に対して漏れ
磁束の変化を少なくすることができ、したがってアーマ
チュアの移動量に対する吸引力の変化を少なくすること
ができる。このため、各ドットに対応した電磁石のアー
マチュアギヤツプを正確に調整することなくして、ドッ
ト毎に印字濃度の均一なドット印字ヘッドを提供できる
効果がある。In other words, magnetic leakage electromagnets use an air-core coil made of ferromagnetic material with no magnetic path, and an armature is placed near or inside the air-core coil, and the current flowing through this air-core coil and the leakage caused by this are This armature is attracted by the force generated by the interaction with the magnetic flux.
Since there is no so-called opposing magnetic pole, it is possible to reduce the change in leakage magnetic flux with respect to the amount of movement of the armature that moves the armature gear, and therefore the change in the attractive force with respect to the amount of movement of the armature. can. Therefore, it is possible to provide a dot print head with uniform print density for each dot without having to accurately adjust the armature gap of the electromagnet corresponding to each dot.
以上詳細に説明したように、本発明によれば、表面に硬
質物質を付着したドット印字部材と、一端に該ドット印
字部材を一体成形して備えると共に他端に強磁性体から
なるアーマチュアを鉄挿してなるハンマと、該ハンマと
一体的に成形され該ハンマの他端から延びる支持部村と
、充填剤等によって前記支持部材に一体的に支持される
コイルとを備えたことによりアーマチュアギャツプを正
確に調整する必要のないドット印字ヘッドを構成できる
と共に、構造簡単なドット印字ヘッドを提供できる効果
がある。As described in detail above, according to the present invention, a dot printing member having a hard substance adhered to its surface is integrally molded at one end, and an armature made of a ferromagnetic material is provided at the other end using iron. The armature gap can be reduced by providing a hammer formed by inserting the hammer, a supporting part formed integrally with the hammer and extending from the other end of the hammer, and a coil integrally supported by the supporting member with a filler or the like. It is possible to construct a dot print head that does not require accurate adjustment, and it is also possible to provide a dot print head with a simple structure.
第１図は従来の閉磁路を有する電磁石のアーマチュアギ
ャップと吸引力との関係を示す図、第２図は本発明に係
るドットプリントヘッドの正面図、第３図は第２図のＡ
−Ａ′断面図、第４図は磁束漏洩形の電磁石のアーマチ
ュアギャップと吸引力との関係を示す図である。
１・・・・・・ドット印字部村、２・・・・・・ハンマ
、３．．・．．・アーマチュア、４……支持部材、５…
・・・ヒンジ部。
第１図
第２図
第３図
第４図FIG. 1 is a diagram showing the relationship between the armature gap and attraction force of a conventional electromagnet having a closed magnetic path, FIG. 2 is a front view of a dot print head according to the present invention, and FIG.
-A' sectional view, FIG. 4 is a diagram showing the relationship between the armature gap and attractive force of a magnetic flux leakage type electromagnet. 1... Dot printing section village, 2... Hammer, 3. ．．・．． ．．・Armature, 4...Support member, 5...
...Hinge part. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
ツト印字部材を一端で支持すると共に他端に強磁性体か
らなるアーマチユアを嵌挿してなるハンマと、該ハンマ
と一体的に成形され、該ハンマの他端から延びる可撓性
のヒンジ部を有する支持部材とを非磁性部材で一体的に
成形すると共に、前記支持部材にモールド等によつて前
記アーマチユアを吸引する空芯コイルを固定し、該空芯
コイルの近傍または内部に前記アーマチユアを配設した
ことを特徴とする磁気漏洩形ドツトプリントヘツド。1. A dot printing member having a hard substance adhered to its surface, a hammer having one end supporting the dot printing member and an armature made of a ferromagnetic material inserted into the other end, and a hammer formed integrally with the hammer. A supporting member having a flexible hinge extending from the other end of the hammer is integrally molded with a non-magnetic material, and an air core coil for attracting the armature is fixed to the supporting member by molding or the like, A magnetic leakage type dot print head characterized in that the armature is disposed near or inside the air core coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11040780A JPS6015468B2 (en) | 1980-08-13 | 1980-08-13 | dot print head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11040780A JPS6015468B2 (en) | 1980-08-13 | 1980-08-13 | dot print head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5734980A JPS5734980A (en) | 1982-02-25 |
| JPS6015468B2 true JPS6015468B2 (en) | 1985-04-19 |
Family
ID=14534995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11040780A Expired JPS6015468B2 (en) | 1980-08-13 | 1980-08-13 | dot print head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015468B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156249A (en) * | 1983-02-25 | 1984-09-05 | Morinaga & Co Ltd | Production of sweet ice having liquid center |
-
1980
- 1980-08-13 JP JP11040780A patent/JPS6015468B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5734980A (en) | 1982-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4348120A (en) | Printing head for a dot printer | |
| US4377348A (en) | Printer head for serial dot printer | |
| JPS6015468B2 (en) | dot print head | |
| EP0117145B1 (en) | Dot impact printing head | |
| US4552471A (en) | Print head with permanent magnetic bias | |
| US4484519A (en) | Stylus driving apparatus for printers | |
| JPS6218466Y2 (en) | ||
| JPH0234037Y2 (en) | ||
| JPH0121802Y2 (en) | ||
| JPS6212617Y2 (en) | ||
| JPS6325162Y2 (en) | ||
| JPS6339074Y2 (en) | ||
| JPH0212193B2 (en) | ||
| US4469023A (en) | Cross hammer type printer head | |
| JPS5919173A (en) | Printing head for dot line printer | |
| JPS6331970Y2 (en) | ||
| JP2874817B2 (en) | Electromagnetic release type print head | |
| JPH0410062Y2 (en) | ||
| JPS59155056A (en) | Dot printer head | |
| JPS624238B2 (en) | ||
| JPS61172752A (en) | Matrix printing head | |
| JP2541235Y2 (en) | Stamping device | |
| JPH0431868B2 (en) | ||
| JPS6122638B2 (en) | ||
| JPS612572A (en) | Movable device for dot printing head |