JPH0252755A - Support structure of moving coil - Google Patents

Support structure of moving coil

Info

Publication number
JPH0252755A
JPH0252755A JP20265588A JP20265588A JPH0252755A JP H0252755 A JPH0252755 A JP H0252755A JP 20265588 A JP20265588 A JP 20265588A JP 20265588 A JP20265588 A JP 20265588A JP H0252755 A JPH0252755 A JP H0252755A
Authority
JP
Japan
Prior art keywords
coil
base
printing
coil base
section
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
Application number
JP20265588A
Other languages
Japanese (ja)
Inventor
Tamotsu Miyai
宮井　保
Toshiharu Fudatsuji
札辻　敏治
Haruhiko Tokunaga
徳永　晴彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP20265588A priority Critical patent/JPH0252755A/en
Publication of JPH0252755A publication Critical patent/JPH0252755A/en
Pending legal-status Critical Current

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
    • B41J2/29—Actuators for print wires of moving-coil type

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To mount a large number of printing pins easily and positively with high accuracy after assembly by installing an elastic section capable of turning a coil base between a base section fixed to a fixing section and a columnar support section in a support member. CONSTITUTION:A coil base 22 has a printing pin 6 and a coil 10, and the base section of the coil base 22 is connected integrally to a base member 27. The coil base 22 is supported rotatably to a support member 21 by fitting a hole 28 formed to the base member 27 to a support section 24. The dispersion of dimensions at a time when a large number of the printing pins 6 are fastened after the assembly of a moving coil group 1 can be absorbed by the degree of freedom of the coil base 22, thus easily setting up the printing pins positively with high accuracy. The point of displacement and the direction at the time of printing operation can be stabilized in an elastic section 25. The coil base 22 can be exchanged.

Description

【発明の詳細な説明】 〔概　要〕 インパクト式ワイヤドツトプリンタに使用されるムービ
ングコイル型印字ヘッドのムービングコイル支持構造に
関し、 ムービングコイル群の組立後に多数の印字ヒンを容易か
つ確実に高精度で取り付けられるようにすることを目的
とし、 印字ピンと、固定磁石に対向するコイルとを備えて支持
部材により弾性的に支持されるコイルベースの一方向へ
の回動作により印字を行うムービングコイル型印字ヘッ
ドにおいて、前記支持部材を、固定部に固定される基部
と円柱状支持部との間に前記コイルベースの回動を可能
にするための弾性部を設けて構成し、前記支持部に前記
コイルベースを回転可能に支持させた構成とする。[Detailed Description of the Invention] [Summary] Regarding the moving coil support structure of a moving coil type print head used in an impact type wire dot printer, a large number of printing hinges can be easily and reliably attached with high precision after assembling a group of moving coils. In a moving coil type print head, which is equipped with a printing pin and a coil facing a fixed magnet, and performs printing by rotating the coil base in one direction, which is elastically supported by a support member. , the support member is configured by providing an elastic part between a base fixed to a fixed part and a cylindrical support part to enable rotation of the coil base, and the coil base is attached to the support part. It is configured to be rotatably supported.

〔産業上の利用分野〕[Industrial application field]

本発明はインパクト式ワイヤドツトプリンタにインパク
ト式ワイヤドツトプリンタは、漢字印刷及び同時複写印
刷が可能であるために市場が拡大し、これに伴って、よ
り一層の高速化が望まれている。The present invention relates to impact-type wire dot printers Impact-type wire dot printers are capable of printing Chinese characters and simultaneous copy printing, so the market is expanding, and as a result, even higher speeds are desired.

そのため、ムービングコイル型印字ヘッドが高密度実装
に適していることから用いられている。Therefore, a moving coil print head is used because it is suitable for high-density packaging.

〔従来の技術〕[Conventional technology]

第２図は従来のムービングコイル型印字ヘッドの構造を
示す一部分解斜視図、第３図は第２図の要部を示す平面
図で、１は複数のコイルベース２を並設して成る２列の
ムービングコイル群、３は磁石、４はケース、５は放熱
板である。FIG. 2 is a partially exploded perspective view showing the structure of a conventional moving coil type print head, and FIG. 3 is a plan view showing the main parts of FIG. In the row of moving coils, 3 is a magnet, 4 is a case, and 5 is a heat sink.

コイルベース２は、第４図に詳細を示すように、先端に
印字ピン６を備え、基部がケース４の固定部７に板ばね
（支持部材）８を介し樹脂９により固定、支持されてい
る。また、ベース２の一面にはコイル１０が、他面には
接続用部材（フレキシブルプリント板）１１がそれぞれ
張り付けられており、コイルｌＯの各端末部は、コイル
ベース２に形成された開口部１２を通して接続用部材１
１の端子部（銅箔部）１３に接続されている。端子部１
３は、駆動回路（プリント板）１４にビニル被覆線１５
によって接続されている。As shown in detail in FIG. 4, the coil base 2 has a printing pin 6 at its tip, and its base is fixed and supported by a resin 9 to a fixed part 7 of the case 4 via a leaf spring (supporting member) 8. . Further, a coil 10 is attached to one side of the base 2, and a connecting member (flexible printed board) 11 is attached to the other side, and each end of the coil 10 is attached to an opening 12 formed in the coil base 2. Through connection member 1
It is connected to the terminal portion (copper foil portion) 13 of No. 1 . Terminal part 1
3, vinyl-covered wire 15 is attached to the drive circuit (printed board) 14.
connected by.

磁石３は、等間隔に並設され、コイルベース２は隣接す
る磁石３・３の間に位置している。The magnets 3 are arranged in parallel at regular intervals, and the coil base 2 is located between adjacent magnets 3.

放熱板５は、放熱フィン１６を一体に備え、各磁石３の
端面に接触させてケース４の突出部４ａに取り付けられ
ている。１７は放熱板５に取り付けられたバックストッ
パである。The heat dissipation plate 5 is integrally provided with a heat dissipation fin 16, and is attached to the protrusion 4a of the case 4 in contact with the end surface of each magnet 3. 17 is a back stopper attached to the heat sink 5.

各列のムービングコイル群ｌは、上下の関係が逆向きに
なっており、印字ピン６が一列に並ぶように組み立てら
れている。The moving coil groups 1 in each row are vertically reversed and assembled so that the printing pins 6 are lined up in a row.

印字は、この印字ヘッドをプラテン１８　（第３図参照
）に沿って移動させ、所定時機に所定のコイルベース２
のコイル１０に通電することにより行われる。この通電
と磁石３の磁場とにより、該コイルベース２は板ばね８
を弾性変形させながぢ第４図の反時計方向に回動し、印
字ピン６がケース４に設けられたピンガイド１９から所
定量突出する。突出した印字ピン６は、リボン１０１を
介し用紙１００をプラテン１８に押し付け、これにより
印字が行われる。コイル１０に対する通電は印字完了直
前に停止され、印字を完了した印字ピン６は、板ばね８
により第４図の時計方向に賦勢されるコイルベース２と
ともにもとの位置に復帰する。復帰したコイルベース２
は、バックストッパ１７に係止される。Printing is performed by moving this print head along the platen 18 (see Figure 3) and moving it to a predetermined coil base 2 at a predetermined time.
This is done by energizing the coil 10 of. Due to this energization and the magnetic field of the magnet 3, the coil base 2 is moved into the leaf spring 8.
While being elastically deformed, the printing pin 6 is rotated counterclockwise in FIG. The protruding printing pin 6 presses the paper 100 against the platen 18 via the ribbon 101, thereby performing printing. Energization to the coil 10 is stopped immediately before printing is completed, and the printing pin 6 that has completed printing is moved by the leaf spring 8.
As a result, the coil base 2 returns to its original position together with the coil base 2 which is biased clockwise in FIG. Coil base 2 returned
is locked to the back stopper 17.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

このような従来構造では、コイルベース２の基部の板ば
ね８を第５図に示すように固定部７の穴７ａ内に挿入し
て樹脂９により固定するため、位置精度が得られず、ピ
ン特性上問題が生じる。また、各コイルベース２に対す
る印字ピン６の固定はムービングコイル群１を組み立て
た後で行われるため、固定後の位置精度が悪くかつ歩留
りが低下し、量産性が劣っている。In such a conventional structure, the leaf spring 8 at the base of the coil base 2 is inserted into the hole 7a of the fixing part 7 and fixed with the resin 9 as shown in FIG. 5, so positional accuracy cannot be obtained and the pin Problems arise due to characteristics. Further, since the printing pins 6 are fixed to each coil base 2 after the moving coil group 1 is assembled, the positional accuracy after fixing is poor, the yield is reduced, and mass productivity is poor.

本発明はムービングコイル群の組立後に多数の印字ピン
を容易かつ確実に高精度で取りつけることのできるムー
ビングコイルの支持構造を提供することを目的とするも
のである。SUMMARY OF THE INVENTION An object of the present invention is to provide a moving coil support structure that allows a large number of printing pins to be attached easily, reliably, and with high precision after a moving coil group is assembled.

〔課題を解決するための手段〕[Means to solve the problem]

上述の目的を達成するため、本発明では、印字ピンと、
固定磁石との間でリニアモータを構成するコイルとを備
えて支持部材により弾性的に支持されるコイルベースの
一方向への回動により印字を行うムービングコイル型印
字ヘッドにおいて、前記支持部材を、固定部に固定され
る基部と円柱状支持部との間に前記コイルベースの回動
を可能にするための弾性部を設けて構成し、該支持部に
前記コイルベースを回転可能に支持させた構成とする。In order to achieve the above object, the present invention includes a printing pin;
In a moving coil type print head that performs printing by rotating a coil base in one direction, the coil base is elastically supported by a support member and includes a coil that constitutes a linear motor between the support member and a fixed magnet. An elastic part is provided between a base fixed to a fixed part and a cylindrical support part to enable rotation of the coil base, and the coil base is rotatably supported by the support part. composition.

〔作　用〕[For production]

支持部材は基部が固定され、該支持部材の先端の支持部
にコイルベースが回転可能に支持されているため、コイ
ルベースは回転方向に自由度を持っている。従って、多
数の印字ピンを固定する際の寸法ばらつきをこの自由度
により吸収することができる。また、支持部材には弾性
部が設けられており、コイルベースの印字動作時におけ
る変位点、方向を安定化させることができる。さらに、
コイル不良、ピン不良が発生したときは、コイルベース
を取り外して良品と交換することが可能となる。The base of the support member is fixed, and the coil base is rotatably supported by the support portion at the tip of the support member, so the coil base has a degree of freedom in the rotational direction. Therefore, this degree of freedom can absorb dimensional variations when fixing a large number of printing pins. Further, the support member is provided with an elastic portion, and the displacement point and direction of the coil base during printing operation can be stabilized. moreover,
When a defective coil or pin occurs, the coil base can be removed and replaced with a good product.

〔実施例〕〔Example〕

以下、第１図に関連して本発明の詳細な説明する。 The invention will now be described in detail with reference to FIG.

第１図は本発明に係るムービングコイルの支持構造を示
す斜視図で、図中、２１は支持部材、２２はコイルベー
スである。FIG. 1 is a perspective view showing a moving coil support structure according to the present invention, in which 21 is a support member and 22 is a coil base.

支持部材２１は、基部２３と支持部２４との間に板ばね
状の弾性部２５を一体的に設けて構成され、基部２３は
、樹脂製の固定部２６（従来の固定部７に相当）のモー
ルド時に埋設、一体化されている０弾性部２５は、コイ
ルベース２２を弾性的に支持してその印字動作を可能に
するためのものである。The support member 21 is configured by integrally providing a leaf spring-like elastic part 25 between a base 23 and a support part 24, and the base 23 has a resin fixing part 26 (corresponding to the conventional fixing part 7). The elastic portion 25 embedded and integrated during molding is for elastically supporting the coil base 22 to enable its printing operation.

コイルベース２２は印字ピン６とコイル１０とを備え、
該コイルベース２２の基部はベース部材２７に一体的に
接続されている。このコイルベース２２は、ベース部材
２７に設けられた穴２８を支持部２４に嵌合させること
によって、支持部材２１に、矢印方向に回転可能に支持
されている。The coil base 22 includes a printing pin 6 and a coil 10,
A base of the coil base 22 is integrally connected to a base member 27. The coil base 22 is rotatably supported by the support member 21 in the direction of the arrow by fitting a hole 28 provided in the base member 27 into the support portion 24 .

本発明に係るムービングコイル支持機構は以上のように
構成されており、コイルベース２２が回転方向に自由度
を持っているため、ムービングコイル群１の組立後に多
数の印字ピン６を固定する際の寸法のばらつきをこの自
由度により吸収することができ、容易、確実、かつ高精
度の印字ピン取付が可能になる。また、支持部材２１に
は弾性部２５が設けられており、コイルベース２２の印
字動作時における変位点、方向を安定化させることがで
きる。さらに、コイル不良、印字ピン不良が発生したと
きは、コイルベース２２を取す外して良品と交換するこ
とが可能となる。The moving coil support mechanism according to the present invention is configured as described above, and since the coil base 22 has a degree of freedom in the rotational direction, it is difficult to fix a large number of printing pins 6 after assembling the moving coil group 1. Dimensional variations can be absorbed by this degree of freedom, making it possible to attach the printing pin easily, reliably, and with high precision. Further, the support member 21 is provided with an elastic portion 25, which can stabilize the displacement point and direction of the coil base 22 during printing operation. Furthermore, when a defective coil or printing pin occurs, the coil base 22 can be removed and replaced with a good product.

（発明の効果〕 以上述べたように、本発明によれば、ムービングコイル
の自由度が得られ、多数の印字ピンを固定する際の寸法
ばらつきをこの自由度により吸収することができ、印字
ピンを容易かつ確実に高精度で取り付けることが可能に
なる。また、コイル不良、印字ピン不良時にも、１ピン
単位で交換可能である。(Effects of the Invention) As described above, according to the present invention, the degree of freedom of the moving coil is obtained, and the dimensional variation when fixing a large number of printing pins can be absorbed by this degree of freedom, and the printing pin can be easily and reliably attached with high precision.Furthermore, even in the event of a defective coil or printing pin, each pin can be replaced.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の実施例のムービングコイルの支持構造
を示す斜視図、 第２図は従来のムービングコイル型印字ヘッドの構造を
示す一部分解斜視図、 第３図は第２図の要部を示す平面図、 第４図は第２図のコイルベースの詳細を示す側面図、 第５図は従来のコイルベース固定要領説明図で、図中、 ３は磁石、 ６は印字ピン、 １０はコイル、 ２１は支持部材、 ２２はコイルベース、 ２３は基部、 ２４は支持部、 ２５は弾性部、 ２６は固定部、 ２７はベース部材、 ２８は穴である。FIG. 1 is a perspective view showing a moving coil support structure according to an embodiment of the present invention. FIG. 2 is a partially exploded perspective view showing the structure of a conventional moving coil print head. FIG. 3 is a main part of FIG. 2. 4 is a side view showing details of the coil base in FIG. 2, and FIG. 5 is an explanatory diagram of the conventional method for fixing the coil base. In the figure, 3 is a magnet, 6 is a printing pin, and 10 is a 21 is a support member, 22 is a coil base, 23 is a base, 24 is a support part, 25 is an elastic part, 26 is a fixed part, 27 is a base member, and 28 is a hole.

Claims (1)

【特許請求の範囲】 印字ピン（６）と、固定磁石に対向するコイル（１０）
とを備えて支持部材（２１）により弾性的に支持される
コイルベース（２２）の一方向への回動により印字を行
うムービングコイル型印字ヘッドにおいて、 前記支持部材（２１）を、固定部（２６）に固定される
基部（２３）と円柱状支持部（２４）との間に、前記コ
イルベース（２２）の回動を可能にするための弾性部（
２５）を設けて構成し、前記支持部（２４）に前記コイ
ルベース（２２）を回転可能に支持させたことを特徴と
するムービングコイルの支持構造。[Claims] Printing pin (6) and coil (10) facing the fixed magnet
In a moving coil type print head that performs printing by rotating a coil base (22) in one direction, which is elastically supported by a support member (21), the support member (21) is connected to a fixed part ( Between the base (23) fixed to the coil base (26) and the cylindrical support part (24), there is an elastic part (26) for enabling rotation of the coil base (22).
25), and the supporting portion (24) rotatably supports the coil base (22).
JP20265588A 1988-08-16 1988-08-16 Support structure of moving coil Pending JPH0252755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20265588A JPH0252755A (en) 1988-08-16 1988-08-16 Support structure of moving coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20265588A JPH0252755A (en) 1988-08-16 1988-08-16 Support structure of moving coil

Publications (1)

Publication Number Publication Date
JPH0252755A true JPH0252755A (en) 1990-02-22

Family

ID=16460945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20265588A Pending JPH0252755A (en) 1988-08-16 1988-08-16 Support structure of moving coil

Country Status (1)

Country Link
JP (1) JPH0252755A (en)

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