JPS6149853A - Printing head for dot printer - Google Patents
Printing head for dot printerInfo
- Publication number
- JPS6149853A JPS6149853A JP17060384A JP17060384A JPS6149853A JP S6149853 A JPS6149853 A JP S6149853A JP 17060384 A JP17060384 A JP 17060384A JP 17060384 A JP17060384 A JP 17060384A JP S6149853 A JPS6149853 A JP S6149853A
- Authority
- JP
- Japan
- Prior art keywords
- column
- permanent magnet
- yoke
- magnetic pole
- ring
- 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、各種コンピュータの出力端末機として使用さ
れているドツトプリンタ用印字ヘッドに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a print head for a dot printer used as an output terminal for various computers.
従来例の構成とその問題点
近年、各種コンピュータの進展により、各種用紙に印字
が可能で、かつ低価格のドツトプリンタが多く利用され
、より一層の小形化、低価格化が強く要望されている。Conventional configurations and their problems In recent years, with the advancement of various computers, low-cost dot printers that can print on various types of paper have come into widespread use, and there is a strong demand for further miniaturization and lower prices.
以下に従来のドツトプリンタ用印字ヘッドについて、第
１図を参照しながら説明する。A conventional print head for a dot printer will be explained below with reference to FIG.
第１図ａ、ｂは内磁永久磁石型の従来の印字ヘッドの概
略平面断面図、および概略側断面図である０第１図にお
いて、１は印字針、２は印字針１の一端を案内する案内
孔を有する軸受、３は軸受２を保持する筐体、４は印字
針１の他端に固着された３ ／・−
作動体、５は作動体４の一端に固着された板ばね、１６
はスペーサ、７ｉｌ′ｉスペーサを介し板はね５の一円
周状に配設する基板、９は支蝉リング７の内側で基板８
上に配されかつ板ばね５と対向する面を竺すそ磁極柱、
１０は磁極柱９の外周に巻かれた消極コイル、１１は基
板８の中心部に配された収束磁極柱、１２は作動体４に
磁気力を及ぼすように収束磁柱の上面に接合された永久
磁石、１３は永久磁石１２の上面に接合された継鉄板を
示している。ここで、板ばね５および作動体４は、複数
個略円環状に配置され、磁極柱９は、板はね５と対向す
るように配置されている。また、継鉄板１３には、作動
体４を抱き込むように、複数の先端柱１４が形成されて
おυ、継鉄板１３と先端柱１４とで継鉄柱が構成される
。Figures 1a and b are a schematic plan sectional view and a schematic side sectional view of a conventional internal permanent magnet type printing head. In Figure 1, 1 is a printing needle, and 2 is a guide for one end of the printing needle 1. 3 is a housing that holds the bearing 2; 4 is a 3/...- actuating body fixed to the other end of the printing needle 1; 5 is a leaf spring fixed to one end of the working body 4; 16
9 is a spacer, and 9 is a substrate disposed around one circumference of the plate spring 5 through a spacer, and 9 is a substrate 8 inside the support ring 7.
a magnetic pole column disposed above and having a side facing the leaf spring 5;
10 is a depolarizing coil wound around the outer periphery of the magnetic pole column 9; 11 is a converging magnetic pole column disposed at the center of the substrate 8; and 12 is bonded to the upper surface of the converging magnetic column so as to exert a magnetic force on the operating body 4. Permanent magnet 13 indicates a yoke plate joined to the upper surface of permanent magnet 12. Here, a plurality of leaf springs 5 and operating bodies 4 are arranged in a substantially annular shape, and the magnetic pole column 9 is arranged so as to face the leaf spring 5. Further, a plurality of tip columns 14 are formed on the yoke plate 13 so as to enclose the actuating body 4, and the yoke plate 13 and the tip columns 14 constitute a yoke column.
以」−のように構成された従来の印字ヘッドについて、
以下その動作を説明する。寸ず、通常は、永久磁石１２
の磁束が、継鉄板１３および先端柱１４を介して作動体
４に導かれ、板はね５を通りて、磁極柱９．基板８．収
束磁極柱１１を帰還して、永久磁石１２に戻る。したが
って、作動体４゛は、板ばね５の反発力に打ち勝って、
吸引され、板ばね５はたわんだ状態となっている。次に
、消磁コイル１０に電流を通すと、永久磁石１２の磁束
が打ち消され、作動体４の吸引力が減少するため、板ば
ね５の彷元力によシ、作動体４は、図中上方に加速され
る。この時、印字針１も上方に加速されるため、軸受２
より突出し、インクリボン（図示せず）を衝撃し、点状
の印字を行う。さらに消磁コイル１０の電流を止めると
、上述の如く作動体４は永久磁石１２の磁束により吸引
され元位置に復帰する。以上の動作を１サイクルとし、
印字ヘッドを用紙に対し左右に走査しながら、印字針１
を適時に動作させる事によシ点状のマ）ＩＪクス印字が
行なわれる。Regarding the conventional print head configured as follows,
The operation will be explained below. Normally, permanent magnet 12
The magnetic flux of . Substrate 8. It returns to the converging magnetic pole column 11 and returns to the permanent magnet 12. Therefore, the actuating body 4' overcomes the repulsive force of the leaf spring 5,
Due to the attraction, the leaf spring 5 is in a flexed state. Next, when current is passed through the degaussing coil 10, the magnetic flux of the permanent magnet 12 is canceled and the attractive force of the actuating body 4 is reduced. accelerated upward. At this time, since the printing needle 1 is also accelerated upward, the bearing 2
It protrudes further and impacts an ink ribbon (not shown) to print dots. Furthermore, when the current in the degaussing coil 10 is stopped, the actuating body 4 is attracted by the magnetic flux of the permanent magnet 12 and returns to its original position as described above. The above operation is considered as one cycle,
While scanning the print head left and right on the paper, print needle 1.
By operating the IJ in a timely manner, dotted IJ printing is performed.
し７かし、従来の構成では、継鉄板１３の複数の継鉄柱
１４の外径が永久磁石１２．収束磁極柱１１より犬であ
るため、継鉄板１３および永久磁石と収束磁極柱１１と
の中心位置決めが困難であった。However, in the conventional configuration, the outer diameter of the plurality of yoke columns 14 of the yoke plate 13 is the same as that of the permanent magnet 12. Since it is smaller than the convergent magnetic pole column 11, it was difficult to center position the yoke plate 13, the permanent magnet, and the convergent magnetic pole column 11.
５ ページ
つ１り円筒状の組立治具（図示せず）で前述の中心位置
決めを行うと、前記組立治具のとりはずしが困難となる
。また消磁ごイル１ｏを挿入後、継鉄柱１４を永久磁石
１２に接着する際、消磁コイル１０を傷つける恐れがあ
るという欠点を有していた。5. If the above-mentioned center positioning is performed using a cylindrical assembly jig (not shown) for each page, it will be difficult to remove the assembly jig. Furthermore, there is a drawback that the demagnetizing coil 10 may be damaged when the yoke column 14 is bonded to the permanent magnet 12 after the demagnetizing coil 1o is inserted.
発明の目的
本発明は、このような従来の欠点を除去するものであり
、収束磁極柱、永久磁石、および継鉄柱の中心位置合わ
せを容易にし、且つ組み立て時に消磁コイルを傷つける
ことを直ぐことを目的とするものである。OBJECTS OF THE INVENTION The present invention obviates these conventional drawbacks and facilitates the center alignment of the convergent pole column, permanent magnet, and yoke column, and also eliminates damage to the degaussing coil during assembly. This is the purpose.
発明の構成
上記目的を達成するために本発明は、それぞれ先端に印
字針を有する複数の作動体と、前記複数の作動体の下端
に固着された板はねと、前記板はねの一端を支持する支
持リングと前記支持リングを略円周状に配設す、る歪板
と、画一支持リングの内側で前記基板上に配されかつ前
記板ばねと対向する面を有する複数の磁極柱および消磁
コイルと、１６６−ジ
前記基板の中心部に配された収束磁極柱と、前記作動体
に磁気力を及ぼすように、前記収束磁極柱の一面に設け
られた永久磁石と、前記永久磁石の他面に設けられた継
鉄柱よシなるドツトプリンタ用印字ヘッドの前記収束磁
極柱と、前記永久磁石と前記継鉄柱の外周に略円筒状の
リングを配したもので、前記リングにより前記収束磁極
柱と前記永久磁石と前記継鉄柱の中心位置決めを容易に
するとともに、組み立て時に前記消磁コイルを傷つける
ことを防ぐものである。Structure of the Invention In order to achieve the above object, the present invention provides a plurality of actuating bodies each having a printing needle at its tip, a plate blade fixed to a lower end of the plurality of actuating bodies, and one end of the plate blade. a support ring that supports the support ring; a distorted plate in which the support ring is arranged substantially circumferentially; and a plurality of magnetic pole columns that are arranged on the substrate inside the uniform support ring and have a surface facing the leaf spring. and a degaussing coil, 166-j, a convergent magnetic pole column disposed at the center of the substrate, a permanent magnet provided on one surface of the convergent magnetic pole column so as to exert a magnetic force on the operating body, and a permanent magnet The convergence magnetic pole column of the print head for a dot printer, which is a yoke column provided on the other side, and a substantially cylindrical ring arranged around the outer periphery of the permanent magnet and the yoke column, and the convergence magnetic pole is arranged by the ring. This facilitates center positioning of the column, the permanent magnet, and the yoke column, and prevents damage to the degaussing coil during assembly.
実施例の説明
以下本発明の一実施例を第２図（ａ）、［有］）によシ
説明する。尚、第２図（ａ） 、 （ｂ）は、従来例の
第１図Ｇ）。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. 2(a). Note that FIGS. 2(a) and 2(b) are the conventional example shown in FIG. 1G).
申）と同じ部品には同一番号を付与しておシ従来例と異
なるところは略円筒状のリング１６を配置したことにあ
り、第１図（−） 、 （ｂ）に示す他の構成部分は説
明を省略する。ここでリング１６を例えば樹
′脂等の材料で一体成形するとともに、内径を収束磁
極柱１１と永久磁石１２と継鉄板１３の外径と各々の嵌
合部でほぼ同一にすれば容易に中心位置を合わせる事が
でき、また消磁コイル１ｏを傷っ７ ′。−・
けるのを防ぐ事ができる。The same parts are given the same numbers as in Figure 1 (-) and (b).The difference from the conventional example is that a substantially cylindrical ring 16 is arranged, and the other components shown in Figures 1 (-) and (b) The explanation will be omitted. Here, the ring 16 is placed on a tree, for example.
' If they are integrally molded from a material such as oil, and the inner diameter is made almost the same as the outer diameter of the converging magnetic pole column 11, permanent magnet 12, and yoke plate 13 at each fitting part, the center position can be easily aligned. Also, the degaussing coil 1o was damaged. −・ You can prevent it from happening.
なお、リング１Ｅ５の内径を継鉄柱の嵌合部では、継鉄
柱の外径より犬きくし空隙を設けるとともに、前記継鉄
柱の中心位置は、適当々組立治具により磁極柱９の中心
位置と合わせる事により、組立精度を向上する事ができ
る。In addition, at the fitting part of the yoke column, the inner diameter of the ring 1E5 is narrowed from the outer diameter of the yoke column to provide a gap, and the center position of the yoke column is aligned with the center position of the magnetic pole column 9 using an appropriate assembly jig. As a result, assembly accuracy can be improved.
発明の効果
以上のように、本発明のドツトプリンタ用印字ヘッドに
よれば次の効果が得られる。Effects of the Invention As described above, the print head for a dot printer of the present invention provides the following effects.
（１）収束磁極柱と永久磁石と継鉄柱の中心位置合わせ
を容易に行う事ができる。(1) The centers of the converging magnetic pole column, permanent magnet, and yoke column can be easily aligned.
（２）組み立て時に消磁コイルを傷つけることを防ぐ事
ができる。(2) It is possible to prevent damage to the degaussing coil during assembly.
第１図（ａ） 、 （ｂ）は、従来の内磁永久磁石型の
印字ヘッドの概略平面断面図、および概略側断面図、第
２図（ａ） 、 （ｂ）は本発明の一実施例におけるド
ツトプリンタ用印字ヘッドの概略平面断面図、および概
略側断面図である。
１・・・・・・印字針、２・・・・−軸受、３・・・・
・・筐体、４・・・・・作動体、５・・・・・・板ばね
、６・・・ スペーサ、７・・・・・支持リング、８・
・・・・基板、９・・・・・・磁極柱、１０・・・・・
・消磁コイル、１１・・・・・・収束磁極柱、１２・・
・・永久磁石、１３・・・・・・継鉄板、１４・・・・
・・先端柱、１５・・・・・・リング。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名城
〇−FIGS. 1(a) and (b) are a schematic plan sectional view and a schematic side sectional view of a conventional internal permanent magnet type print head, and FIGS. 2(a) and (b) are one embodiment of the present invention. FIG. 2 is a schematic plan sectional view and a schematic side sectional view of a print head for a dot printer in an example. 1...printing needle, 2...-bearing, 3...
... Housing, 4 ... Actuating body, 5 ... Leaf spring, 6 ... Spacer, 7 ... Support ring, 8 ...
...Substrate, 9...Magnetic pole column, 10...
・Degaussing coil, 11... Converging magnetic pole column, 12...
...Permanent magnet, 13...Yoke plate, 14...
...Tip pillar, 15...Ring. Name of agent: Patent attorney Toshio Nakao and one other person
〇－
Claims (2)
前記複数の作動体の一端に固着された板ばねと、前記板
ばねの一端を支持する支持リングと、前記支持リングを
略円周状に配設する基板と、前記支持リングの内側で前
記基板上に配されかつ前記板ばねと対向する面を有する
複数の磁極柱および消磁コイルと、前記基板の中心部に
配された収束磁極柱と、前記作動体に磁気力を及ぼすよ
うに、前記収束磁極柱の一面に設けられた永久磁石と、
前記永久磁石の他面に設けられた継鉄柱とを具備し、前
記収束磁極柱と前記永久磁石と前記継鉄柱の外周に略円
筒状のリングを配した事を特徴とするドットプリンタ用
印字ヘッド。(1) A plurality of actuating bodies each having a printing needle at its tip,
a leaf spring fixed to one end of the plurality of actuating bodies; a support ring that supports one end of the leaf spring; a base plate on which the support ring is disposed substantially circumferentially; and a base plate disposed inside the support ring. a plurality of magnetic pole columns and a degaussing coil disposed above and having a surface facing the leaf spring; a convergent magnetic pole column disposed at the center of the substrate; A permanent magnet provided on one side of the magnetic pole column,
A print head for a dot printer, comprising a yoke column provided on the other surface of the permanent magnet, and a substantially cylindrical ring arranged around the outer periphery of the converging magnetic pole column, the permanent magnet, and the yoke column. .
のリングを配するとともに、前記継鉄柱の嵌合部では、
前記リングの内径を前記継鉄柱の外径より大きくし空隙
を設けた事を特徴とする特許請求の範囲第１項記載のド
ットプリンタ用印字ヘッド。(2) A substantially cylindrical ring is arranged around the outer periphery of the converging magnetic pole column, the permanent magnet, and the yoke column, and at the fitting part of the yoke column,
2. The print head for a dot printer according to claim 1, wherein the inner diameter of the ring is larger than the outer diameter of the yoke column to provide a gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17060384A JPS6149853A (en) | 1984-08-16 | 1984-08-16 | Printing head for dot printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17060384A JPS6149853A (en) | 1984-08-16 | 1984-08-16 | Printing head for dot printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6149853A true JPS6149853A (en) | 1986-03-11 |
| JPH0578421B2 JPH0578421B2 (en) | 1993-10-28 |
Family
ID=15907909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17060384A Granted JPS6149853A (en) | 1984-08-16 | 1984-08-16 | Printing head for dot printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6149853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63151844U (en) * | 1987-03-27 | 1988-10-05 |
-
1984
- 1984-08-16 JP JP17060384A patent/JPS6149853A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63151844U (en) * | 1987-03-27 | 1988-10-05 | ||
| JPH0453950Y2 (en) * | 1987-03-27 | 1992-12-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0578421B2 (en) | 1993-10-28 |
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