JPS61189984A - Ribbon change-over apparatus of printer - Google Patents
Ribbon change-over apparatus of printerInfo
- Publication number
- JPS61189984A JPS61189984A JP3111285A JP3111285A JPS61189984A JP S61189984 A JPS61189984 A JP S61189984A JP 3111285 A JP3111285 A JP 3111285A JP 3111285 A JP3111285 A JP 3111285A JP S61189984 A JPS61189984 A JP S61189984A
- Authority
- JP
- Japan
- Prior art keywords
- ribbon
- support
- change
- pivot shaft
- ribbon guide
- 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
- B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
- B41J35/04—Ink-ribbon guides
- B41J35/10—Vibrator mechanisms; Driving gear therefor
- B41J35/12—Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift
- B41J35/14—Vibrator 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
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、リボンを印字部と対向させ
てスライド自在に保持するリボンガイドの両側にワイヤ
を止着し、このワイヤの両端を支持体の両側に止着し、
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、この支持体の上下動作にリボンガイドを連動
させてリボンの切替を行い、これにより多色印字を行う
ようにしたものが存する。Conventional technology Conventionally, a support body for holding a cassette case in which a ribbon is stored is provided so as to be movable up and down, and wires are fixed to both sides of a ribbon guide that holds the ribbon in a slidable manner facing the printing section. Attach both ends of the wire to both sides of the support,
The support is rotated around a fulcrum using a motor, electromagnet, etc. as a drive source, and a ribbon guide is linked to the vertical movement of the support to switch ribbons, thereby performing multicolor printing. Exists.
発明が解決しようとする問題点
しかし、支持体を頻繁に高速で上下動作させると、ワイ
ヤで吊られたリボンガイドが振動し、振動が治まるまで
動作が安定しない。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 the support is frequently moved up and down at high speed, the ribbon guide suspended by the wire will vibrate, and the operation will not stabilize until the vibrations subside. On the other hand, the ribbon for multicolor printing is 4
Some products are coded into more than one color zone, and when printing in multiple colors, printing is performed using one selected zone, or multiple zones are overlapped on the same printing line, so it is necessary to move the ribbon to an accurate position at high speed. It is necessary to move it with
The switching frequency is also 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 shift amount of the ribbon, color mixture will occur above and below the printed characters.
この発明はこのような点に鑑みなされたもので、リボン
ガイドの振動を防止し、混色を確実に防止することがで
きる印字機のリボン切替装置をうろことを目的とする。The present invention has been made in view of these points, and an object of the present invention is to provide a ribbon switching device for a printing machine that can prevent vibration of a ribbon guide and reliably prevent color mixing.
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
をリボン１７の送り方向と直交する方向へ移動自在及び
任意位置固定自在に設け、キャリア２１にリボンガイド
１８を支持体８の移動方向と同方向に移動自在に設け、
このリボンガイド１８をキャリア２１の移動方向に沿っ
てスライド自在に保持する支軸１１を支持体８の両側に
架設する。Means for Solving the Problems This invention provides a cassette case 16. Support body 8 that holds
is provided to be movable in a direction perpendicular to the feeding direction of the ribbon 17 and to be fixed at any position, and a ribbon guide 18 is provided to the carrier 21 so as to be movable in the same direction as the moving direction of the support 8.
Support shafts 11 that hold the ribbon guide 18 slidably along the moving direction of the carrier 21 are installed on both sides of the support body 8.
さらに、支軸１１の外周に支持体８の移動方向に沿う面
と平行な平坦面１１ａを形成する。Furthermore, a flat surface 11a parallel to the surface along the moving direction of the support body 8 is formed on the outer periphery of the support shaft 11.
作用
したがって、支持体８をカセットケース１６及びリボン
ガイド１８とともにリボン１７の送り方向と直交する方
向へ移動させてリボン１７の切替を行う。このとき、支
軸１１は支持体８の移動方向に沿う方向の衝撃を受ける
が、支軸１１は平坦面１１ａの形成により支持体８の移
動方向に沿う方向に対する強度が強く、この支軸１１に
嵌合されたリボンガイド１８は振動することなく安定す
る。Therefore, the ribbon 17 is switched by moving the support body 8 together with the cassette case 16 and the ribbon guide 18 in a direction perpendicular to the feeding direction of the ribbon 17. At this time, the support shaft 11 receives an impact in the direction along the moving direction of the support body 8, but the support shaft 11 has strong strength in the direction along the movement direction of the support body 8 due to the formation of the flat surface 11a. The ribbon guide 18 fitted in the ribbon guide 18 is stable without vibration.
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 the present 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
ランク１０とが二本ずつ垂直に固定され、前部には水平
な支軸１１が横設されている。この支軸１１は外周に支
持体８の移動方向に沿う横長の平坦面１１ａを有する断
面り型の引抜材である。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１２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が設けられ、このリボンガイド１８には支軸１
１に摺動自在に嵌合されるＵ字形の溝１８ａが形成され
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 support shaft 11 is horizontally installed at the front part. The support shaft 11 is a drawn material having a cross-sectional shape and having a horizontally long flat surface 11a along the moving direction of the support body 8 on the outer periphery. 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. The idler gear 12 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. Springs 15 are tensioned on both sides of the support body 8 and on both ends of the drive shaft 6. A ribbon guide 18 is provided to hold the ribbon 17 pulled out from the cassette case 16 which is removably placed on the support 8.
1 is formed with a U-shaped groove 18a that is slidably fitted into the groove 18a. 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、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. A detent mechanism 26 is formed by the serrated pieces 24 and the locking pawls 25, which are attached to the carrier 21.
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、この動作に支軸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 support 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のシフト量をランク１０の移動量と一致
する正確な値に定めることができる。In this way, support 8. Ribbon guide 18. Since the cassette case 16 moves in a straight line perpendicular to the feeding direction of the ribbon 17, by controlling the rotation angle of the pulse motor 3, the amount of shift of the ribbon 17 at the tip of the dot printer head 20 matches the amount of movement of rank 10. can be set to an exact value.
また、支軸１１は支持体８の切替動作時にその動作方向
に沿う方向の衝撃を受けるが、外周に支持体８の切替動
作方向に沿う面と平行な平坦面１１ａが形成されている
ため衝撃力に対して強度が強い。このように有効に強度
が高められた支軸１１により保持されたリボンガイド１
８は支持体８の切替動作時に上下方向に振動することが
ない。In addition, the support shaft 11 is subjected to an impact along the direction of operation of the support 8 during the switching operation, but since a flat surface 11a parallel to the surface along the switching operation direction of the support 8 is formed on the outer periphery, the impact is Strong against force. The ribbon guide 1 is held by the support shaft 11 whose strength is effectively increased in this way.
8 does not vibrate in the vertical direction during the switching operation of the support body 8.
しかも、支持体８はランク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。Moreover, the support body 8 has a spring 15 along with rank 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.
したがって、高速印字を行わせることができる。Therefore, high-speed printing can be performed.
また、支軸１１の平坦面１１ａ以外の外周面は溝１８ａ
の底に接触してリボンガイド１８の位置決めをする。Further, the outer peripheral surface of the support shaft 11 other than the flat surface 11a has a groove 18a.
The ribbon guide 18 is positioned by contacting the bottom of the ribbon guide 18.
このように、リボン１７のシフト量が正確で、リボンガ
イド１８のリボン切替方向の振動が防止されるので、多
色印字に際して混色を防止することができる。In this way, the amount of shift of the ribbon 17 is accurate, and vibration of the ribbon guide 18 in the ribbon switching direction is prevented, so that color mixing can be prevented during multicolor printing.
発明の効果
この発明は上述のように、切替動作をする支持体に架設
した支軸にリボンガイドを嵌合し、この支軸に支持体の
切替動作方向に沿う面と平行な平坦面を形成したことに
より、支軸の強度を有効に高めることができ、これによ
り、支持体の切替動作時に支軸及びリボンガイドの振動
の発生を防止し、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効果を有する。Effects of the Invention As described above, the present invention involves fitting a ribbon guide to a support shaft installed on a support body that performs a switching operation, and forming a flat surface on this support shaft that is parallel to a surface along the direction of the switching operation of the support body. As a result, the strength of the support shaft can be effectively increased, thereby preventing the vibration of the support shaft and ribbon guide during the switching operation of the support, and therefore preventing color mixing during multicolor printing. It has the effect of
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
は一部を拡大して支軸とリボンガイドとの嵌合状態を示
す斜視図、第４図はその一部の側面図である。
８・・・支持体、１１・・支軸、ｌｌａ・・・平坦面、
１６・・・カセットケース、１７・・・リボン、１８・
・・リボンガイド、２ｏ・・・ドツトプリンタヘッド（
印字部）、２１・・・キャリア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. Figures 3 and 3 are partially enlarged perspective views showing the fitted state of the support shaft and the ribbon guide, and Fig. 4 is a side view of the part. 8... Support body, 11... Support shaft, lla... Flat surface,
16...Cassette case, 17...Ribbon, 18.
... Ribbon guide, 2o... Dot printer head (
Printing section), 21...Carrier
Claims (1)
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
直交する方向へ移動自在及び任意位置固定自在に設け、
前記印字部と対向して前記リボンをスライド自在に保持
するリボンガイドを前記支持体の移動方向と同方向に移
動自在に前記キャリアに設け、前記支持体の両側に前記
リボンガイドを前記キャリアの移動方向に沿つてスライ
ド自在に保持する支軸を架設し、この支軸の外周に前記
支持体の移動方向に沿う面と平行な横長の平坦面を形成
したことを特徴とする印字機のリボン切替装置。A carrier on which a printing section is mounted is provided to be reciprocally movable, and a support body holding a cassette case containing a ribbon pulled out in front of the printing section is movable in a direction perpendicular to the direction in which the ribbon is fed. Can be fixed at any position,
A ribbon guide that slidably holds the ribbon facing the printing section is provided on the carrier so as to be movable in the same direction as the moving direction of the support, and the ribbon guides are provided on both sides of the support to prevent movement of the carrier. Ribbon switching for a printing machine, characterized in that a support shaft is installed to hold the ribbon in a slidable manner along the direction, and a horizontally long flat surface parallel to the surface along the moving direction of the support is formed on the outer periphery of the support shaft. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3111285A JPH0641216B2 (en) | 1985-02-19 | 1985-02-19 | Ribbon switching device for printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3111285A JPH0641216B2 (en) | 1985-02-19 | 1985-02-19 | Ribbon switching device for printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61189984A true JPS61189984A (en) | 1986-08-23 |
| JPH0641216B2 JPH0641216B2 (en) | 1994-06-01 |
Family
ID=12322315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3111285A Expired - Lifetime JPH0641216B2 (en) | 1985-02-19 | 1985-02-19 | Ribbon switching device for printing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0641216B2 (en) |
-
1985
- 1985-02-19 JP JP3111285A patent/JPH0641216B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0641216B2 (en) | 1994-06-01 |
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