JP2003025616A - Dot line printer - Google Patents

Dot line printer

Info

Publication number
JP2003025616A
JP2003025616A JP2001219831A JP2001219831A JP2003025616A JP 2003025616 A JP2003025616 A JP 2003025616A JP 2001219831 A JP2001219831 A JP 2001219831A JP 2001219831 A JP2001219831 A JP 2001219831A JP 2003025616 A JP2003025616 A JP 2003025616A
Authority
JP
Japan
Prior art keywords
printing
hammer
paper
print
line 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
Application number
JP2001219831A
Other languages
Japanese (ja)
Inventor
Koji Omae
浩司 大前
Makoto Shinohara
誠 篠原
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki Co 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 Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP2001219831A priority Critical patent/JP2003025616A/en
Publication of JP2003025616A publication Critical patent/JP2003025616A/en
Pending legal-status Critical Current

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  • Impact Printers (AREA)
  • Common Mechanisms (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a dot line printer for reciprocating, in the line direction, a hammer bank supporting a plurality of spring charge type dot printing hammers disposed along the line direction or the circumferential direction for printing dot lines in the reciprocating movement process. SOLUTION: At the time of empty shuttle, the gap between a printing pin and a platen is widened automatically by a certain amount with respect to the gap of the initial setting.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は行方向あるいは円周
方向に沿って並べて設けられた複数のスプリングチャー
ジ式ドット印字ハンマを保持したハンマバンクを、行方
向に沿って往復移動させ、この往復移動の過程でドット
行を印字することより文字、図形等をを形成するドット
ラインプリンタに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reciprocates a hammer bank, which holds a plurality of spring-charged dot printing hammers arranged side by side in a row direction or a circumferential direction, and reciprocates in the row direction. The present invention relates to a dot line printer that forms characters, figures, etc. by printing dot lines in the process of.

【0002】[0002]

【従来の技術】図3にドットラインプリンタの概略を示
す斜視図、図4に印字時におけるハンマ機構部の状態を
示す横断面図を示す。
2. Description of the Related Art FIG. 3 is a perspective view showing an outline of a dot line printer, and FIG. 4 is a transverse sectional view showing a state of a hammer mechanism portion during printing.

【0003】ドットラインプリンタの印字方式は、印字
ピン2を有するハンマ機構部1を図示していないシャト
ル機構部により、図3中の矢印7の方向に往復移動す
る。この過程で、図4に示すハンマ機構部1の印字ピン
2を駆動させ、プラテン4で印字ピン2の印字力を保持
し、紙送り方向8と垂直方向に適時搬送されるインクリ
ボン3及び前記シャトル動作、紙送り動作、リボン動作
により擦れ合って生じる印刷汚れを防止するためのリボ
ンセパレータ6を介して印字用紙5にドットマトリクス
の形で文字、図形等を印字するものである。
In the printing method of the dot line printer, the hammer mechanism section 1 having the printing pin 2 is reciprocated in the direction of arrow 7 in FIG. 3 by a shuttle mechanism section (not shown). In this process, the printing pin 2 of the hammer mechanism section 1 shown in FIG. 4 is driven, the printing force of the printing pin 2 is held by the platen 4, and the ink ribbon 3 and the above-mentioned ink ribbon 3 which are conveyed in a direction perpendicular to the paper feeding direction 8 at appropriate times. Characters, figures and the like are printed in a dot matrix form on the printing paper 5 via a ribbon separator 6 for preventing printing stains caused by rubbing due to shuttle operation, paper feeding operation and ribbon operation.

【0004】なお、従来においては、印字ピン2とプラ
テン4のギャップは初期的に設定すると、オペレータが
設定変更しない限りは常に一定に保持される。
Incidentally, in the prior art, when the gap between the print pin 2 and the platen 4 is initially set, it is always kept constant unless the operator changes the setting.

【0005】[0005]

【発明が解決しようとする課題】しかし、上記した、印
字ピン2とプラテン4のギャップを常に一定に保持する
ドットラインプリンタには次のような問題がある。
However, the above-described dot line printer which always keeps the gap between the printing pin 2 and the platen 4 constant has the following problems.

【0006】空シャトル時(ハンマバンクを非印字で往
復移動する時)に、リボンセパレータ6を配設してもリ
ボンセパレータ6の穴部から印字ピン2が突出すること
があり、印字ピン2とプラテン4のギャップで、インク
リボン3と印字用紙5が擦動して印刷汚れが発生する場
合がある。
During empty shuttle (when the hammer bank is reciprocating without printing), the printing pin 2 may protrude from the hole of the ribbon separator 6 even if the ribbon separator 6 is provided. The ink ribbon 3 and the printing paper 5 may rub against each other in the gap of the platen 4 to cause printing stains.

【0007】また、図5に示すように、印刷用紙5のミ
シン目では用紙の折りぐせが残るためさらにその擦動が
大きくなる。したがって先に述べた印刷汚れに加え、ミ
シン目では紙送りの負荷も大きくなる。
Further, as shown in FIG. 5, at the perforations of the printing paper 5, the folds of the paper remain, and the rubbing of the printing paper 5 further increases. Therefore, in addition to the above-described print stain, the perforation also increases the paper feeding load.

【0008】更に、折りぐせによる擦動により、リボン
セパレータ6自体も印字用紙5と擦動してしまう。
Further, due to the friction caused by the folding, the ribbon separator 6 itself also rubs against the printing paper 5.

【0009】そこで、本発明の課題は、印刷汚れを防止
し、印字用紙のミシン目が通過する際にも安定した用紙
搬送が可能となり、かつリボンセパレータの長寿命化を
図ることを課題とする。
Therefore, an object of the present invention is to prevent printing stains, to enable stable paper conveyance even when perforations of printing paper pass, and to extend the life of the ribbon separator. .

【0010】[0010]

【課題を解決するための手段】上記課題を解決するた
め、本発明は、板バネと印字ピンで構成されており、印
字行に沿って所定ピッチで並べて配置された複数のドッ
ト印字ハンマと、該印字ハンマを非印字位置に保持する
ために磁気吸引力を発生する磁石手段と、前記印字ハン
マを駆動するために各印字ハンマに対応して設けられた
コイルとを有し、該コイルに所定幅の釈放電流を供給す
ることにより印字ハンマを消磁釈放し駆動するよう構成
されたハンマ機構部と、該ハンマ機構部を行方向に往復
移動させるシャトル機構部と、印字用紙を行方向と垂直
方向に送る紙送り機構部と、インクリボンを印字ハンマ
前面に行方向に沿って駆動するリボン機構部と、印字ハ
ンマの印字力を保持するため、インクリボン及び印字用
紙を介して印字ハンマと対向し、所定間隔だけ離間した
初期設定位置に設けられたプラテンと、印字汚れを防止
するためインクリボンと印字用紙の間に配設されるよう
にハンマ機構部に取り付けられたリボンセパレータを備
え、ハンマ機構部とプラテンとの間にインクリボンと印
字用紙を介してシャトル機構部の往復運動の過程で適時
印字ハンマが駆動することにより、印字ハンマがインク
リボンを介して印字用紙を打撃し、印字用紙にドットマ
トリクスの形で文字、図形等を印字するようなドットラ
インプリンタにおいて、起動時の初期動作、またはシャ
トル機構部の往復運動を伴うハンマ機構部の非印字状態
時において、印字ピンとプラテン間の隙間を一定量、初
期設定の間隔よりも自動的に広げるよう制御することと
した。
In order to solve the above-mentioned problems, the present invention comprises a leaf spring and a printing pin, and a plurality of dot printing hammers arranged side by side at a predetermined pitch along a printing line, A magnet means for generating a magnetic attraction force for holding the print hammer in the non-print position and a coil provided corresponding to each print hammer for driving the print hammer are provided, and the coil has a predetermined size. A hammer mechanism section configured to release and drive the print hammer by supplying a release current of a width, a shuttle mechanism section for reciprocating the hammer mechanism section in the row direction, and a print paper perpendicular direction to the row direction. Paper feed mechanism, a ribbon mechanism that drives the ink ribbon in front of the print hammer along the row direction, and a print hammer that holds the print power of the print hammer through the ink ribbon and print paper. The platen is provided at an initial setting position that is opposed to the printer and is separated by a predetermined distance, and a ribbon separator attached to the hammer mechanism portion so as to be arranged between the ink ribbon and the printing paper to prevent printing stains. , The printing hammer is driven between the hammer mechanism section and the platen through the ink ribbon and the printing sheet at the appropriate time during the reciprocating movement of the shuttle mechanism section, so that the printing hammer hits the printing sheet through the ink ribbon, In a dot line printer that prints characters, figures, etc. in the form of dot matrix on the printing paper, the printing pin and the platen are not printed during the initial operation at start-up or when the hammer mechanism part is in the non-printing state accompanying the shuttle mechanism part It was decided to control the gap between them to a certain amount so that it would be automatically wider than the default gap.

【0011】ここで、非印字状態とは、ハンマ機構部の
駆動制限時、印刷用紙の継ぎ目となる非印字領域が印字
ハンマとプラテン間を通過する時、あるいはハンマ機構
部の印刷動作終了時が挙げられる。
Here, the non-printing state means when the driving of the hammer mechanism is restricted, when the non-printing area which is a joint of the printing paper passes between the printing hammer and the platen, or when the printing operation of the hammer mechanism is completed. Can be mentioned.

【0012】[0012]

【発明の実施の形態】以下、図面を参照して本発明を説
明する。
DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings.

【0013】図1は本発明の非印字状態の印字ハンマの
横断面図を示す。図において、1はスプリングチャージ
式の印字ハンマを有するハンマ機構部であって、12は
板バネ11と印字ピン2で構成されており、印字行に沿
って所定ピッチで並べて配置された複数のドット印字ハ
ンマ、3はインクリボン、4は印字ピン2の印字打撃力
を保持するプラテン、5は印字用紙、6は印字用紙5の
汚れを防止するリボンセパレータ、9は印字ハンマを非
印字位置に保持するために磁気吸引力を発生する磁石手
段、10は印字ハンマを駆動するために各印字ハンマに
対応して設けられたコイルである。
FIG. 1 shows a cross-sectional view of the printing hammer of the present invention in the non-printing state. In the figure, 1 is a hammer mechanism section having a spring-charge type printing hammer, and 12 is composed of a leaf spring 11 and a printing pin 2, and a plurality of dots arranged side by side at a predetermined pitch along a printing line. A printing hammer, 3 is an ink ribbon, 4 is a platen that holds the printing striking force of the printing pin 2, 5 is printing paper, 6 is a ribbon separator that prevents the printing paper 5 from becoming dirty, and 9 is a printing hammer that holds the printing hammer in a non-printing position. In order to drive the printing hammer, the magnetic means 10 for generating a magnetic attraction force is a coil provided corresponding to each printing hammer.

【0014】ドット印字ハンマ12はコイル10の近傍
にあるポール部13によって非印字位置に吸着保持され
ており、所定幅の釈放電流がコイル10に供給され、磁
石手段9の磁力が消磁されるのに伴って釈放され、イン
クリボン3を介して印字用紙5に印字を行なう。
The dot printing hammer 12 is adsorbed and held at the non-printing position by the pole portion 13 near the coil 10, a release current of a predetermined width is supplied to the coil 10, and the magnetic force of the magnet means 9 is demagnetized. Is released along with the printing, and printing is performed on the printing paper 5 via the ink ribbon 3.

【0015】ここで、本発明においては、図4に示す印
字動作から、シャトル動作を伴う非印字状態、つまり空
シャトルになると同時に、図1に示すように印字ピン2
とプラテン4のギャップをある一定量広げるようにす
る。このギャップを自動的に広げたり、元の状態に戻し
たりする制御は、図示しないコントローラにて行なわれ
る。このような制御によって、インクリボン3と印字用
紙5の擦れを防ぐことができ、汚れを防止することがで
きる。また、この動作を繰り返すことにより印字用紙5
とリボンセパレータ6の擦れも低減できるため、リボン
セパレータの磨耗の低減でき長寿命化が図れる。
In the present invention, the printing operation shown in FIG. 4 is changed to a non-printing state accompanied by a shuttle operation, that is, an empty shuttle, and at the same time, as shown in FIG.
And the platen 4 gap is widened by a certain amount. Control of automatically widening this gap or returning it to the original state is performed by a controller (not shown). By such control, rubbing between the ink ribbon 3 and the printing paper 5 can be prevented, and stain can be prevented. Further, by repeating this operation, the printing paper 5
Since the friction of the ribbon separator 6 can also be reduced, the abrasion of the ribbon separator can be reduced and the service life can be extended.

【0016】なお、上述した空シャトルが行なわれるの
は、ハンマ機構部に駆動制限がかけられている時、ある
いは印刷動作開始時及び終了時等が挙げられる。
The above-mentioned empty shuttle is performed when the drive of the hammer mechanism is restricted, or when the printing operation starts and ends.

【0017】また、図2のように印字用紙5のミシン目
が通過する場合にも前述したように印字ピン2とプラテ
ン4のギャップをある一定量広げる動作を行うことによ
り、前述同様の効果が得られることに加え、用紙搬送の
負荷も低減可能となる。
Also, when the perforation of the printing paper 5 passes through as shown in FIG. 2, the same effect as described above can be obtained by expanding the gap between the printing pin 2 and the platen 4 by a certain amount as described above. In addition to being obtained, the load of paper transportation can be reduced.

【0018】当然、再度印字動作を行うときには、ギャ
ップは自動的に元に戻る。
Of course, when the printing operation is performed again, the gap is automatically restored.

【0019】[0019]

【発明の効果】以上説明したように、本発明によれば、
空シャトル時において印字ピンとプラテン間のギャップ
を一定量、初期設定のギャップより自動的に広げること
により、印刷汚れを防止し、印字用紙のミシン目が通過
する際にも安定した用紙搬送が可能となり、リボンセパ
レータの長寿命化を図ることが可能となる。
As described above, according to the present invention,
By automatically expanding the gap between the print pin and the platen by a fixed amount during the empty shuttle, the print gap is prevented and stable paper transport is possible even when the perforations of the print paper pass through. It is possible to extend the life of the ribbon separator.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明の非印字状態におけるハンマ機構部の
状態を示す横断面図
FIG. 1 is a cross-sectional view showing a state of a hammer mechanism portion in a non-printing state of the present invention.

【図2】 本発明の非印字状態におけるハンマ機構部の
状態を示す横断面図
FIG. 2 is a cross-sectional view showing the state of the hammer mechanism portion in the non-printing state of the present invention.

【図3】 本発明のドットラインプリンタの概略を示す
斜視図
FIG. 3 is a perspective view showing an outline of a dot line printer of the present invention.

【図4】 印字時におけるハンマ機構部の状態を示す横
断面図
FIG. 4 is a cross-sectional view showing a state of the hammer mechanism portion during printing.

【図5】 従来における不具合を示すハンマ機構部の横
断面図
FIG. 5 is a cross-sectional view of a hammer mechanism section showing a conventional defect.

【符号の説明】[Explanation of symbols]

1はハンマ機構部、2は印字ピン、3はインクリボン、
4はプラテン、5は印字用紙、6はリボンセパレータ、
7はハンマ機構部の往復方向、8は印字用紙の紙送り方
向を示す。
1 is a hammer mechanism, 2 is a print pin, 3 is an ink ribbon,
4 is a platen, 5 is printing paper, 6 is a ribbon separator,
Reference numeral 7 indicates the reciprocating direction of the hammer mechanism portion, and 8 indicates the paper feeding direction of the printing paper.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】板バネと印字ピンで構成されており、印字
行に沿って所定ピッチで並べて配置された複数のドット
印字ハンマと、該印字ハンマを非印字位置に保持するた
めに磁気吸引力を発生する磁石手段と、前記印字ハンマ
を駆動するために各印字ハンマに対応して設けられたコ
イルとを有し、該コイルに所定幅の釈放電流を供給する
ことにより印字ハンマを消磁釈放し駆動するよう構成さ
れたハンマ機構部と、該ハンマ機構部を行方向に往復移
動させるシャトル機構部と、印字用紙を行方向と垂直方
向に送る紙送り機構部と、インクリボンを印字ハンマ前
面に行方向に沿って駆動するリボン機構部と、印字ハン
マの印字力を保持するため、インクリボン及び印字用紙
を介して印字ハンマと対向し、所定間隔だけ離間した初
期設定位置に設けられたプラテンと、印字汚れを防止す
るためインクリボンと印字用紙の間に配設されるように
ハンマ機構部に取り付けられたリボンセパレータを備
え、ハンマ機構部とプラテンとの間にインクリボンと印
字用紙を介してシャトル機構部の往復運動の過程で適時
印字ハンマが駆動することにより、印字ハンマがインク
リボンを介して印字用紙を打撃し、印字用紙にドットマ
トリクスの形で文字、図形等を印字するドットラインプ
リンタにおいて、 起動時の初期動作、またはシャトル機構部の往復運動を
伴うハンマ機構部の非印字状態時において、印字ピンと
プラテン間の隙間を一定量、初期設定の間隔よりも自動
的に広げるよう制御することを特徴とするドットライン
プリンタ。
1. A plurality of dot printing hammers each composed of a leaf spring and a printing pin and arranged side by side at a predetermined pitch along a printing line, and a magnetic attraction force for holding the printing hammer at a non-printing position. And a coil provided corresponding to each print hammer for driving the print hammer, and supplying a release current of a predetermined width to the coil to demagnetize and release the print hammer. A hammer mechanism section configured to be driven, a shuttle mechanism section that reciprocates the hammer mechanism section in the row direction, a paper feed mechanism section that feeds print paper in a direction perpendicular to the row direction, and an ink ribbon on the front surface of the print hammer. In order to maintain the printing force of the ribbon hammer and the printing mechanism driven along the row direction, the ribbon mechanism is placed at the initial setting position facing the printing hammer through the ink ribbon and the printing paper and separated by a predetermined distance. Equipped platen and a ribbon separator attached to the hammer mechanism so as to be placed between the ink ribbon and the printing paper to prevent printing stains. When the printing hammer is driven during the reciprocating movement of the shuttle mechanism through the paper, the printing hammer hits the printing paper through the ink ribbon and prints characters and figures in the form of dot matrix on the printing paper. In the dot line printer, when the initial operation at start-up or when the hammer mechanism is not printing due to the reciprocating movement of the shuttle mechanism, the gap between the print pin and the platen is automatically adjusted by a certain amount, rather than the default interval. A dot line printer that is controlled to expand.
【請求項2】前記非印字状態は、前記ハンマ機構部の駆
動制限時であることを特徴とする請求項1記載のドット
ラインプリンタ。
2. The dot line printer according to claim 1, wherein the non-printing state is when the driving of the hammer mechanism is restricted.
【請求項3】前記非印字状態は、前記印刷用紙の継ぎ目
となる非印字領域が印字ハンマとプラテン間を通過する
時であることを特徴とする請求項1記載のドットライン
プリンタ。
3. The dot line printer according to claim 1, wherein the non-printing state is when a non-printing area serving as a joint of the printing paper passes between the printing hammer and the platen.
【請求項4】前記非印字状態は、前記ハンマ機構部の印
刷動作終了時であることを特徴とする請求項1記載のド
ットラインプリンタ。
4. The dot line printer according to claim 1, wherein the non-printing state is at the end of the printing operation of the hammer mechanism section.
JP2001219831A 2001-07-19 2001-07-19 Dot line printer Pending JP2003025616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001219831A JP2003025616A (en) 2001-07-19 2001-07-19 Dot line printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001219831A JP2003025616A (en) 2001-07-19 2001-07-19 Dot line printer

Publications (1)

Publication Number Publication Date
JP2003025616A true JP2003025616A (en) 2003-01-29

Family

ID=19053758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001219831A Pending JP2003025616A (en) 2001-07-19 2001-07-19 Dot line printer

Country Status (1)

Country Link
JP (1) JP2003025616A (en)

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