JPS61189981A - Ribbon change-over apparatus of printer - Google Patents

Ribbon change-over apparatus of printer

Info

Publication number
JPS61189981A
JPS61189981A JP3110985A JP3110985A JPS61189981A JP S61189981 A JPS61189981 A JP S61189981A JP 3110985 A JP3110985 A JP 3110985A JP 3110985 A JP3110985 A JP 3110985A JP S61189981 A JPS61189981 A JP S61189981A
Authority
JP
Japan
Prior art keywords
printing
ribbon
drive shaft
support
movable body
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
JP3110985A
Other languages
Japanese (ja)
Inventor
Haruo Hasegawa
長谷川 晴夫
Osamu Koizumi
修 小泉
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.)
Toshiba TEC Corp
Original Assignee
Tokyo Electric 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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP3110985A priority Critical patent/JPS61189981A/en
Publication of JPS61189981A publication Critical patent/JPS61189981A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J35/00Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/04Ink-ribbon guides
    • B41J35/10Vibrator mechanisms; Driving gear therefor
    • B41J35/12Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift
    • B41J35/14Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift for multicolour work; for ensuring maximum life of ink ribbon; for rendering ink-ribbon inoperative

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

PURPOSE:To certainly prevent color mixing and to simplify the support structure of a printing movable body, by moving a support and a cassette case to a straight line direction crossing a ribbon feed direction at right angles and holding the printing movable body in a freely slidable manner by utilizing a drive shaft. CONSTITUTION:The rotary motion of a motor 3 is transmitted to a support 8 by a gear 5 and a rack 10 to move the support 8 to a straight line direction crossing the feed direction of a ribbon 17 at right angles with a cassette case 16. The irregularity in the movement amount of the rack 10 is not magnified at the part of the ribbon 17 opposed to a printing part 20. Therefore, color mixing at the time of multicolor printing can be prevented. Further, because a slide part 23 held to a drive shaft 6 in a freely slidable manner is provided to a printing movable body 22 and the drive shaft 6 is utilized as a carrier guide, the number of parts for supporting the printing movable body 22 can be reduced.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、印字機のリボン切替装置に関する。[Detailed description of the invention] Industrial applications The present invention relates to a ribbon switching device for a printing machine.

従来の技術 従来、リボンが収納されたカセットケースを保持する支
持体を上下回動自在に設け、この支持体をモータや電磁
石等を駆動源として支点を中心に回動させて多色印字を
行うようにしたものが存する。
Conventional technology Conventionally, a support body that holds a cassette case in which ribbons are stored is provided so that it can move up and down, and this support body is rotated around a fulcrum using a motor, electromagnet, etc. as a driving source to perform multicolor printing. There is something that did this.

発明が解決しようとする問題点 しかし、支持体の回動支点から先端までの距離にバラツ
キがあると、印字部に対向する位置ではリボンのリフト
量のバラツキが拡大される。他方では、多色印字用のリ
ボンは4色以上のゾーンに色分けされたものもあり、多
色印字に際しては、選択した1ゾーンをもって印字し、
あるいは複数のゾーンを同一印字行に重ねて印字動作を
行うため、リボンを正確な位置に高速で移動させる必要
があり、その切替頻度もきわめて高い。また、各ゾーン
の印字幅を極力狭くする要望があり、各ゾーンの印字幅
に対するマージンはきわめて僅かである。したがって、
少しでもリボンのシフト量に狂いがあると印字された文
字の上下に混色が発生する。
Problems to be Solved by the Invention However, if there is variation in the distance from the rotation fulcrum to the tip of the support, the variation in the lift amount of the ribbon will be magnified at the position facing the printing section. On the other hand, some ribbons for multicolor printing are color-coded into four or more color zones, and when printing in multiple colors, one selected zone is used for printing.
Alternatively, in order to perform a printing operation by overlapping a plurality of zones on the same printing line, it is necessary to move the ribbon to an accurate position at high speed, and the switching frequency is extremely high. Furthermore, there is a desire to make the printing width of each zone as narrow as possible, and the margin for the printing width of each zone is extremely small. therefore,
If there is even a slight deviation in the amount of ribbon shift, color mixing will occur above and below the printed characters.

このため、カセットケースの一部にディテントを設け、
このディテントに係合する係止爪を印字部が保持された
キャリアに設けて混色を防止する手段もあるが、ディテ
ントと印字部との間が離れているので混色防止の対策と
しては不充分である。
For this reason, a detent is provided in a part of the cassette case,
There is a way to prevent color mixing by providing a locking claw that engages with this detent on the carrier that holds the printed part, but this is insufficient as a measure to prevent color mixing because the detent and the printed part are far apart. be.

また、印字部が搭載されたキャリアを摺動自在に保持す
るためには複数のキャリアシャフトを必要とし、部品点
数が多くなる。
Furthermore, in order to slidably hold the carrier on which the printing section is mounted, a plurality of carrier shafts are required, which increases the number of parts.

この発明はこのような点に鑑みなされたもので、混色を
確実に防止することができ、しかも、印字可動体の支持
構造を簡略化することができる印字機のリボン切替装置
をうろことを目的とする。
This invention was made in view of the above, and aims to provide a ribbon switching device for a printing machine that can reliably prevent color mixing and also simplify the support structure of the movable printing body. shall be.

問題点を解決するための手段 この発明は、印字部20を有する印字可動体22をキャ
リアガイド7により摺動自在に保持して設け、カセット
ケース16を保持する支持体8の両側にラック10を設
け、これらのラック10に噛合するギヤ5が固定された
駆動軸6を正逆回転自在のモータ3に連結して設ける。
Means for Solving the Problems This invention provides a movable printing body 22 having a printing section 20 that is slidably held by a carrier guide 7, and racks 10 on both sides of a support 8 that holds a cassette case 16. A drive shaft 6 to which a gear 5 that meshes with these racks 10 is fixed is connected to a motor 3 that can freely rotate in forward and reverse directions.

さらに、駆動軸6に摺動自在に保持される被摺動部23
を印字可動体22に設ける。
Furthermore, a slidable portion 23 that is slidably held on the drive shaft 6
is provided on the printing movable body 22.

作用 したがって、モータ3の回転運動をギヤ5、ラック1o
により支持体8に伝達し、支持体8をカセットケース1
6とともにリボン17の送り方向と直交する直線方向へ
移動させる。したがって。
Therefore, the rotational movement of the motor 3 is controlled by the gear 5 and the rack 1o.
is transmitted to the support body 8, and the support body 8 is transferred to the cassette case 1.
6 in a straight line direction perpendicular to the feeding direction of the ribbon 17. therefore.

ラック2oの移動量のバラツキが印字部20と対向する
リボン17の部分において拡大することがない。また、
駆動軸6をキャリアガイドとして利用するため、印字可
動体22を支持するための部品の点数を少なくすること
になる。
Variations in the amount of movement of the rack 2o do not increase in the portion of the ribbon 17 that faces the printing section 20. Also,
Since the drive shaft 6 is used as a carrier guide, the number of parts for supporting the movable printing body 22 is reduced.

実施例 この発明の一実施例を図面に基づいて説明する。Example An embodiment of this invention will be described based on the drawings.

第2図に示すように、相対向する側板1の一方に駆動ギ
ヤ2を駆動する正逆回転自在のモータであるパルスモー
タ3が保持されている。また、これらの側板1には駆動
ギヤ2に噛合する従動ギヤ4と左右一対のギヤ5とが固
定された駆動軸6が回転自在に保持されているとともに
、丸棒状のキャリアガイド7が架設されている。
As shown in FIG. 2, a pulse motor 3, which is a motor capable of forward and reverse rotation and drives a drive gear 2, is held on one of the opposing side plates 1. Further, a drive shaft 6 to which a driven gear 4 meshing with the drive gear 2 and a pair of left and right gears 5 are fixed is rotatably held on these side plates 1, and a round bar-shaped carrier guide 7 is installed. ing.

ついで、第1図、第2図に示すように支持体8が設けら
れている。この支持体8の両側にはそれぞれ案内軸9と
ランク10とが二本ずつ垂直に固定され、前部には水平
な案内軸11が横設されている。前方のラック10はギ
ヤ5に噛合され、後方のランク10はギヤ5に噛合され
たアイドラギヤ12に噛合されている。アイドラギヤ1
2は側板1に回転自在に支承されている。さらに、側板
1には案内軸9とラック1oとの何れかを摺動自在に保
持する案内部材13.14が固定されている。支持体8
のWJ側と駆動軸6の面端とにはスプリング15が張設
されている。そして、支持体8に着脱自在に載置される
カセットケース16から引出されるリボン17を保持す
るリボンガイド18が案内軸11に摺動自在に嵌合され
ている。カセットケース16にはリボン駆動軸(図示せ
ず)に連結される巻取軸19が設けられている。
Next, as shown in FIGS. 1 and 2, a support 8 is provided. Two guide shafts 9 and two ranks 10 are vertically fixed to each side of the support body 8, and a horizontal guide shaft 11 is horizontally installed at the front part. The front rack 10 is meshed with the gear 5, and the rear rank 10 is meshed with the idler gear 12, which is meshed with the gear 5. Idler gear 1
2 is rotatably supported by the side plate 1. Furthermore, guide members 13 and 14 are fixed to the side plate 1 to slidably hold either the guide shaft 9 or the rack 1o. Support 8
A spring 15 is tensioned between the WJ side of the drive shaft 6 and the face end of the drive shaft 6. A ribbon guide 18 that holds a ribbon 17 pulled out from a cassette case 16 that is removably placed on the support 8 is slidably fitted onto the guide shaft 11. The cassette case 16 is provided with a take-up shaft 19 connected to a ribbon drive shaft (not shown).

さらに、印字部であるドツトプリンタヘッド20と、こ
れを搭載してキャリアシャフト7に摺動自在に保持され
たキャリア21とよりなる印字可動体22が設けられて
いる。リボンガイド18はキャリア21にも上下移動自
在に保持されている。
Furthermore, a movable printing body 22 is provided which includes a dot printer head 20 serving as a printing unit and a carrier 21 on which the dot printer head 20 is mounted and slidably held on the carrier shaft 7. The ribbon guide 18 is also held by the carrier 21 so as to be vertically movable.

ドツトプリンタヘッド20には駆動軸6に摺動自在に保
持される突片状の被摺動部23が形成されている。さら
に、リボンガイド18の両側には上下方向に配列された
複数の歯を有する鋸歯状片24が一体的に形成され、こ
れらの鋸歯状片24に弾発的に係合する係止爪25がキ
ャリア21に取付けられ、これらの鋸歯状片24と係止
爪25とによりディテント機構26が形成されている。
The dot printer head 20 is formed with a protrusion-shaped sliding portion 23 that is slidably held on the drive shaft 6. Further, serrated pieces 24 having a plurality of teeth arranged in the vertical direction are integrally formed on both sides of the ribbon guide 18, and locking pawls 25 that elastically engage with these serrated pieces 24 are integrally formed. The detent mechanism 26 is attached to the carrier 21, and the serrated pieces 24 and the locking pawls 25 form a detent mechanism 26.

このような構成において、キャリア21を移動させドツ
トプリンタヘッド20を駆動させて印字を行う。また、
パルスモータ3を回転すると支持体8はカセットケース
16とともにリボン17の送り方向と直交する直線方向
へ移動し、この動作に案内軸11に保持されたリボンガ
イド18も連動し、リボン17が上下方向へシフトする
In such a configuration, printing is performed by moving the carrier 21 and driving the dot printer head 20. Also,
When the pulse motor 3 is rotated, the support body 8 moves together with the cassette case 16 in a linear direction perpendicular to the feeding direction of the ribbon 17, and the ribbon guide 18 held on the guide shaft 11 is also linked to this movement, so that the ribbon 17 is moved in the vertical direction. Shift to.

このように、支持体8.リボンガイド18、カセットケ
ース16はリボン17の送り方向と直交する直線方向へ
移動するため、パルスモータ3の回転角をコントロール
することにより、ドットプランクヘッド20の先端にお
けるリボン17のシフト量をラック1oの移動量と一致
する正確な値に定めることができる。仮に他の原因で支
持体8の移動量に多少の誤差が生じたとしても、鋸歯状
片24と係止爪25との噛合により、ドツトプリンタヘ
ッド20の先端に対向するリボンガイド18の切替位置
を厳密に定めることができる。したがって、多色印字に
際して混色を防止することができる。
In this way, support 8. Since the ribbon guide 18 and the cassette case 16 move in a linear direction perpendicular to the feeding direction of the ribbon 17, by controlling the rotation angle of the pulse motor 3, the shift amount of the ribbon 17 at the tip of the dot plank head 20 can be adjusted to the rack 1o. can be set to an accurate value that matches the amount of movement. Even if some error occurs in the amount of movement of the support 8 due to other reasons, the switching position of the ribbon guide 18 facing the tip of the dot printer head 20 can be adjusted due to the engagement between the serrated piece 24 and the locking pawl 25. It can be defined precisely. Therefore, color mixing can be prevented during multicolor printing.

しかも、支持体8はランク10とともにスプリング15
により付勢されているので、ギヤ5及びアイドラギヤ1
2とランク10との間に多少のバック、ラッシュがあっ
たとしても、支持体8を頻繁に上下させたときに振動が
少なく速やかに安定する。したがって、高速印字を行わ
せることができる。
Moreover, the support body 8 has a rank 10 and a spring 15.
gear 5 and idler gear 1.
Even if there is some back or rush between rank 2 and rank 10, there is little vibration when the support body 8 is frequently moved up and down, and it quickly stabilizes. Therefore, high-speed printing can be performed.

さらに、支持体8を上下させる駆動軸6を利用してドツ
トプリンタヘッド20を摺動自在に保持することができ
る。もちろん駆動軸6によりキャリア21を保持しても
よい。何れにしても、印字可動体22の支持構造を簡略
化することができる。
Further, the dot printer head 20 can be slidably held using the drive shaft 6 that moves the support body 8 up and down. Of course, the carrier 21 may be held by the drive shaft 6. In any case, the support structure for the movable printing body 22 can be simplified.

発明の効果 この発明は上述のように構成したので、モータの回転運
動をギヤとラックとにより支持体に伝達し、支持体とカ
セットケースとをリボンの送り方向と直交する直線方向
へ移動させることができ。
Effects of the Invention Since the present invention is configured as described above, the rotational motion of the motor is transmitted to the support by the gear and the rack, and the support and the cassette case are moved in a linear direction perpendicular to the ribbon feeding direction. I can do it.

したがって、印字部の先端におけるリボンのシフト量を
正確に定めることができ、これにより、多色印字に際し
て混色を防止することができ、しかも、支持体はギヤに
噛合するラックを両側に有しているため左右方向の傾き
がなく、安定した動作で高速運転を行うことができ、さ
らに、駆動軸を利用して印字可動体を摺動自在に保持す
ることができるため、印字可動体を支持するたたぬの部
品の点数を少なくすることができる等の効果を有する。
Therefore, it is possible to accurately determine the shift amount of the ribbon at the tip of the printing section, thereby preventing color mixing during multicolor printing.Moreover, the support has racks on both sides that mesh with gears. Because of this, there is no lateral inclination, and stable operation can be achieved at high speeds.Furthermore, the movable printing body can be slidably held using the drive shaft, so it is possible to support the movable printing body. This has effects such as being able to reduce the number of parts in the rattanu.

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

図面はこの発明の一実施例を示すもので、第1図は一部
を切欠した斜視図、第2図は一部を切欠し縮小して支持
体へのリボンガイドの取付は状態を示す斜視図、第3図
は一部を拡大してディテント機構の噛合状態を示す斜視
図、第4図はディテント機構を拡大して示す分解斜視図
である。 3・・・パルスモータ(モータ)、5・・・ギヤ、6・
・・駆動軸、7・・・キャリアガイド、8・・・支持体
、10・・・ラック、16・・・カセットケース、17
・・・リボン。
The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway perspective view, and FIG. 2 is a partially cutaway and reduced perspective view showing how the ribbon guide is attached to the support. FIG. 3 is a partially enlarged perspective view showing the engaged state of the detent mechanism, and FIG. 4 is an exploded perspective view showing the detent mechanism in an enlarged manner. 3...Pulse motor (motor), 5...Gear, 6...
... Drive shaft, 7... Carrier guide, 8... Support body, 10... Rack, 16... Cassette case, 17
···ribbon.

Claims (1)

【特許請求の範囲】[Claims] 印字部を有する印字可動体を一本の横長のキャリアガイ
ドにより摺動自在に保持して設け、前記印字部の前面に
引出されるリボンが収納されたカセットケースを保持す
る支持体を前記リボンが送られる方向と直交する直線方
向へ移動自在に設け、前記支持体の両側にこの支持体の
移動方向に沿うラックを設け、これらのラックに噛合す
るギヤが固定された駆動軸を正逆回転自在のモータに連
結して設け、前記印字可動体に前記駆動軸に摺動自在に
保持される被摺動部を設けたことを特徴とする印字機の
リボン切替装置。
A movable printing body having a printing part is slidably held by one horizontally long carrier guide, and the ribbon is pulled out in front of the printing part and holding a support body holding a cassette case containing a ribbon. The drive shaft is provided so as to be movable in a straight line perpendicular to the feeding direction, and racks are provided on both sides of the support body along the direction of movement of the support body, and a drive shaft to which gears that mesh with these racks are fixed can be freely rotated in forward and reverse directions. 1. A ribbon switching device for a printing machine, characterized in that the ribbon switching device is connected to a motor, and the printing movable body is provided with a slidable portion that is slidably held on the drive shaft.
JP3110985A 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer Pending JPS61189981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3110985A JPS61189981A (en) 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3110985A JPS61189981A (en) 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer

Publications (1)

Publication Number Publication Date
JPS61189981A true JPS61189981A (en) 1986-08-23

Family

ID=12322232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3110985A Pending JPS61189981A (en) 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer

Country Status (1)

Country Link
JP (1) JPS61189981A (en)

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