JPS61189982A - Ribbon change-over apparatus of printer - Google Patents

Ribbon change-over apparatus of printer

Info

Publication number
JPS61189982A
JPS61189982A JP3111085A JP3111085A JPS61189982A JP S61189982 A JPS61189982 A JP S61189982A JP 3111085 A JP3111085 A JP 3111085A JP 3111085 A JP3111085 A JP 3111085A JP S61189982 A JPS61189982 A JP S61189982A
Authority
JP
Japan
Prior art keywords
support
ribbon
printing
rack
gear
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
JP3111085A
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 JP3111085A priority Critical patent/JPS61189982A/en
Publication of JPS61189982A publication Critical patent/JPS61189982A/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 perform high speed printing by preventing the vibration of a support generated at the time of the changing- over of said support, by moving the support and a cassette to a straight line direction crossing a ribbon feed direction at right angles. 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 along with a cassette case 16. Therefore, 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 and color mixing can be prevented at the time of multicolor printing. Even if backrash is generated between the gear 5 and the rack 10, the vibration of the support 8 at the time of changing-over is suppressed by energizing the support 8 to rapidly stabilize the support 8.

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.
Or, in order to perform printing operations by overlapping multiple zones on the same printing line, it is necessary to move the ribbon to an accurate position at high speed, and the frequency of switching is extremely high.Also, there is a desire to make the printing width of each zone as narrow as possible. The margin for the print 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.

この発明はこのような点に鑑みなされたもので、混色を
確実に防止し、しかも、支持体の切替時の振動の発生を
防止して高速印字を行う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 has been made in view of the above points, and provides a ribbon switching device for a printing machine that can reliably prevent color mixing and also prevent vibrations when switching supports and perform high-speed printing. Aimed at scales.

問題点を解決するための手段 この発明は、カセットケース16を保持する支持体8の
両側にラック1o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、支持体8をその移動方向の一方へ付
勢する。
Means for Solving the Problems In the present invention, racks 1o are provided on both sides of a support 8 that holds a cassette case 16, and a drive shaft 6 to which a gear 5 that meshes with these racks 10 is fixed can be rotated in forward and reverse directions. The support member 8 is connected to the motor 3 to bias the support member 8 in one direction of movement.

作用 したがって、モータ3の回転運動をギヤ5.ラック10
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、ランク20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、ギヤ5とラック10との間に
バックラッシュが生じたとしても、支持体8.を付勢す
ることにより切替時の支持体8の振動の発生を抑制し、
支持体8を速やかに安定させる。
Therefore, the rotational movement of the motor 3 is transferred to the gear 5. rack 10
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, variations in the amount of movement of the ranks 20 do not increase in the portion of the ribbon 17 that faces the printing section 20. Furthermore, even if backlash occurs between the gear 5 and the rack 10, the support 8. By energizing, vibration of the support body 8 at the time of switching is suppressed,
The support body 8 is quickly stabilized.

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
、キャリアシャフト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 carrier shaft 7 is also provided thereon.

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
ラック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、後方のラック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10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
の両側と駆動軸6の両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 racks 10 are vertically fixed to each side of the support body 8, and a horizontal guide shaft 11 is horizontally installed in the front part. The front rack 10 is meshed with the gear 5, and the rear rack 10 is meshed with an idler gear 12 that 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 10. Support 8
A spring 15 is tensioned on both sides of the drive shaft 6 and on both ends 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。
A protrusion 23 is formed on the dot printer head 20 and 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が上下方向ヘシフトする
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、ドツトプリンタヘッド20の先端にお
けるリボン17のシフト量をラック10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。したかって、多色印字に
際して混色を防止することができる。
In this way, since the support body 8, ribbon guide 18, and cassette case 16 move in a straight line direction perpendicular to the feeding direction of the ribbon 17, by controlling the rotation angle of the pulse motor 3, the ribbon at the tip of the dot printer head 20 can be moved. The shift amount of the rack 17 can be set to an accurate value that matches the movement amount of the rack 10. 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はラック1o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とラック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 spring 15 together with the rack 1o.
gear 5 and idler gear 1.
Even if there is some backlash between the support body 8 and the rack 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 driving 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、また、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
なく動作が安定し、しかも、ギヤとラックとの間にバッ
クラッシュが生じたとしても、支持体を付勢することに
より支持体の切替動作時の振動の発生を抑制し、支持体
を速やかに安定させて高速印字を行うことができる等の
効果を有する。
Therefore, it is possible to accurately determine the amount of shift of the ribbon at the tip of the printing section, thereby preventing color mixing during multicolor printing. Because there is no lateral tilt, the operation is stable, and even if backlash occurs between the gear and the rack, the support body is energized to suppress vibrations during support switching operation. This has the advantage of quickly stabilizing the support and enabling high-speed printing.

【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、8・・・支持体、1o・・・ラック、16
・・・カセットケース、17・・・リボン、20・・・
ドツトプリンタヘッド(印字部)
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, 8...Support, 1o...Rack, 16
...Cassette case, 17...Ribbon, 20...
Dot printer head (printing section)

Claims (1)

【特許請求の範囲】[Claims] 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、前記支持体をその移動方向
の一方へ付勢したことを特徴とする印字機のリボン切替
装置。
A support holding a cassette case containing a ribbon to be drawn out in front of the printing section is provided so as to be movable in a straight line perpendicular to the direction in which the ribbon is fed, and a support is provided on both sides of the support in the direction of movement of the support. A drive shaft to which a gear is fixed that meshes with these racks is connected to a motor that can freely rotate in forward and reverse directions, and the support is biased in one direction of movement. Printing machine ribbon switching device.
JP3111085A 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer Pending JPS61189982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3111085A JPS61189982A (en) 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3111085A JPS61189982A (en) 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer

Publications (1)

Publication Number Publication Date
JPS61189982A true JPS61189982A (en) 1986-08-23

Family

ID=12322260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3111085A Pending JPS61189982A (en) 1985-02-19 1985-02-19 Ribbon change-over apparatus of printer

Country Status (1)

Country Link
JP (1) JPS61189982A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364945A2 (en) * 1988-10-19 1990-04-25 Honeywell S.A. Ink ribbon cartridge and multicolour printer accepting same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364945A2 (en) * 1988-10-19 1990-04-25 Honeywell S.A. Ink ribbon cartridge and multicolour printer accepting same

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