JPH0641217B2 - Ribbon position switching device - Google Patents
Ribbon position switching deviceInfo
- Publication number
- JPH0641217B2 JPH0641217B2 JP7378385A JP7378385A JPH0641217B2 JP H0641217 B2 JPH0641217 B2 JP H0641217B2 JP 7378385 A JP7378385 A JP 7378385A JP 7378385 A JP7378385 A JP 7378385A JP H0641217 B2 JPH0641217 B2 JP H0641217B2
- Authority
- JP
- Japan
- Prior art keywords
- mounting table
- cam
- step motor
- carrier
- ribbon
- 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.)
- Expired - Lifetime
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)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、印字機に用いるリボン位置切替装置に関す
る。Description: TECHNICAL FIELD The present invention relates to a ribbon position switching device used in a printing machine.
従来の技術 従来、複数本のゾーンに色分けされたリボンを有する多
色リボンカセツトを着脱自在に保持する載置台をキヤリ
アに上下回動自在に連結し、ステツプモータの回転をギ
ヤを介して載置台に伝達してこの載置台を回動させ、載
置台のホームポジシヨンを定め、ステツプモータを一定
のステツプ数をもつて駆動することにより、リボンの各
ゾーンを印字部に対向させるようにしたものがある。2. Description of the Related Art Conventionally, a mounting table that detachably holds a multicolor ribbon cassette having color-coded ribbons in a plurality of zones is vertically rotatably connected to a carrier, and rotation of a step motor is mounted via a gear. To move the mounting table to determine the home position of the mounting table and drive the stepping motor with a constant number of steps so that each zone of the ribbon faces the printing section. There is.
発明が解決しようとする問題点 しかし、ステツプモータの相合わせと載置台のホームポ
ジシヨン調整とを同時に行わなければならないため、調
整作業がきわめて困難である。Problems to be Solved by the Invention However, the adjustment work is extremely difficult because the phase matching of the step motor and the home position adjustment of the mounting table must be performed at the same time.
この発明はこのような点に鑑みなされたもので、載置台
のホームポジシヨンの調整とステツプモータの相合わせ
とをきわめて容易に行いうるリボン位置切替装置をうる
ことを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ribbon position switching device that can very easily adjust the home position of the mounting table and the phase of the step motor.
問題点を解決するための手段 この発明は、複数本のゾーン１５〜１８に色分けされた
リボン１４を有する多色リボンカセツト１３を保持する
載置台５をキヤリア１に変位自在に連結し、キヤリア１
に載置台５をキヤリア１の移動方向と直交する方向に変
位させるカム８をステツプモータ１０に連結して設け、
リボン１４のゾーン１５〜１８のそれぞれを印字部４に
対向させるように前記載置台５を各切替位置に位置決め
する負数の制御部１９〜２２をカム８に形成し、制御部
１９〜２２の長さをステツプモータ１０の複数のステツ
プ数に対応する長さに設定し、ステツプモータ１０から
カム８に至る動力伝達経路中に少なくとも二つのギヤ１
１，１２を設け、これらのギヤ１１，１２の少なくとも
一方に載置台５のホームポジシヨンにおいて歯の噛合を
外す切欠２３を形成する。Means for Solving the Problems According to the present invention, a mounting table 5 for holding a multicolor ribbon cassette 13 having ribbons 14 color-coded into a plurality of zones 15 to 18 is movably connected to a carrier 1 and a carrier 1 is attached.
A cam 8 for displacing the mounting table 5 in a direction orthogonal to the moving direction of the carrier 1 is provided in connection with the step motor 10.
A negative control unit 19-22 for positioning the mounting table 5 at each switching position is formed on the cam 8 so that each of the zones 15-18 of the ribbon 14 faces the printing unit 4, and the length of the control unit 19-22 is increased. Is set to a length corresponding to a plurality of step numbers of the step motor 10, and at least two gears 1 are provided in the power transmission path from the step motor 10 to the cam 8.
1, 12 are provided, and at least one of these gears 11, 12 is provided with a notch 23 for disengaging the teeth in the home position of the mounting table 5.
作用 ステツプモータ１０によりカム８を回転させ載置台５を
変位させ、多色リボンカセツト１３のリボン１４の任意
色のゾーン１５〜１８を印字部４に対向させる。The cam 8 is rotated by the step motor 10 to displace the mounting table 5, and the zones 15 to 18 of the arbitrary color of the ribbon 14 of the multicolor ribbon cassette 13 are made to face the printing portion 4.
載置台５はどの位置にいようともステツプモータ１０を
駆動している限り変位しホームポジションに到達し、こ
のときに切欠２３の形成によりギヤ１１，１２の噛合が
外れる。したがつて、一定の相を指定してステツプモー
タ１０をステツプ数に余裕を持たせて駆動することによ
り、載置台５のホームポジシヨンが決まり、ステツプモ
ータ１０の相合わせも行いうる。The mounting table 5 is displaced to reach the home position as long as the stepping motor 10 is driven regardless of the position, and at this time, the gears 11 and 12 are disengaged due to the formation of the notch 23. Therefore, by designating a certain phase and driving the step motor 10 with a margin in the number of steps, the home position of the mounting table 5 is determined, and the phase of the step motor 10 can also be adjusted.
実施例 この発明の一実施例を図面に基づいて説明する。キヤリ
ア１に搭載した印字ヘツド２とプラテン３とよりなる印
字部４が設けられている。キヤリア１には載置台５が軸
６により回動自在に保持されている。また、キヤリア１
には外周に螺旋７が突出形成されたカム８が載置台５の
移動方向にそう軸心をもつて回動自在に保持されてい
る。載置台５の右側には螺旋７を挟持するピン９が立設
されている。Embodiment An embodiment of the present invention will be described with reference to the drawings. A printing unit 4 including a printing head 2 and a platen 3 mounted on the carrier 1 is provided. A mounting table 5 is rotatably held by a carrier 6 on the carrier 1. Also, carrier 1
A cam 8 having a spiral 7 projectingly formed on the outer periphery thereof is held rotatably with its axis in the moving direction of the mounting table 5. On the right side of the mounting table 5, a pin 9 for holding the spiral 7 is provided upright.
ついで、キヤリア１に着脱自在に装着された支持台１ａ
には正逆回転自在のステツプモータ１０とこのステツプ
モータ１０に直結されたギヤ１１とが設けられている。Next, the support base 1a detachably attached to the carrier 1
A step motor 10 that can rotate in the normal and reverse directions and a gear 11 that is directly connected to the step motor 10 are provided therein.
載置台５に着脱自在に装着される多色リボンカセツト１
３のリボン１４は４本のゾーン１５，１６，１７，１８
に色分けされている。Multicolor ribbon cassette 1 that is detachably attached to the mounting table 5.
The ribbon 14 of 3 has four zones 15, 16, 17, 18
Are color-coded.
しかして、螺旋７には各ゾーン１５，１６，１７，１８
を印字部４に対向させるように載置台５を切替位置ａ，
ｂ，ｃ，ｄに位置決めする制御部１９，２０，２１，２
２が形成されている。ステツプモータ１０のステツプ数
にして制御部１９，２０，２１，２２のピツチｐは１３
ステツプ、制御部１９，２０，２１，２２の長さｌは４
ステツプである。そして、載置台５がホームポジシヨン
ａに到達したときにギヤ１１，１２の噛合が外れるよう
にギヤ１３の外周に切欠２３が形成されている。また、
載置台５をホームポジシヨンに位置させた状態でカム８
の外周に形成した突部２４に弾発的に当接する板発条２
５がキヤリア１に設けられている。Then, in the spiral 7, each zone 15, 16, 17, 18
The mounting table 5 so that the mounting table 5 faces the printing section 4,
Control units 19, 20, 21, 2 for positioning to b, c, d
2 is formed. The number of steps of the step motor 10 is set and the pitch p of the control units 19, 20, 21, 22 is 13
The length l of each of the control units 19, 20, 21, 22 is 4
It is a step. A notch 23 is formed on the outer periphery of the gear 13 so that the gears 11 and 12 are disengaged when the mounting table 5 reaches the home position a. Also,
The cam 8 with the mounting table 5 positioned at the home position
The plate spring 2 that elastically abuts the protrusion 24 formed on the outer periphery of the
5 is provided in the carrier 1.
さらに、キヤリア１にはカム８を軸方向へ変位させる調
整機構２６が設けられている。この調整機構２６は第７
図に示すように、カム８を摺動自在に保持する円柱２７
と、この円柱２７に螺合されてカム８を押える調整螺旋
２８と、調整螺旋２８を軸方向へ付勢する発条２９とよ
りなる。Further, the carrier 1 is provided with an adjusting mechanism 26 for displacing the cam 8 in the axial direction. This adjusting mechanism 26 is the seventh
As shown in the figure, a cylinder 27 slidably holding the cam 8
And an adjusting spiral 28 which is screwed into the cylinder 27 to press the cam 8 and a spring 29 which urges the adjusting spiral 28 in the axial direction.
このような構成において、ステツプモータ１０を駆動す
るとカム８が回転して載置台５を上下方向に回動させ
る。載置台５のピン９が制御部１９，２０，２１，２２
に順次持ち上げられた場合は、載置台５は第４図におい
てａ，ｂ，ｃ，ｄのように変位し色の切替が行われる。In such a configuration, when the step motor 10 is driven, the cam 8 rotates to rotate the mounting table 5 in the vertical direction. The pins 9 of the mounting table 5 are controlled by the control units 19, 20, 21, 22.
When they are sequentially lifted up, the mounting table 5 is displaced as indicated by a, b, c and d in FIG. 4 to switch colors.
ピン９が制御部２２に支えられたときは載置台５は切替
位置ｄに位置し、この状態から制御部間の１ピツチｐの
３倍に相当する３９ステツプをもつてステツプモータ１
０を駆動しカム８を反時計方向へ回転させると、第３図
に示すように切欠２３がギア１１に対向しギヤ１１，１
２の噛合が外れ、このときのカム８の回転慣性も板発条
２５により失い、ギヤ１１，１２の歯が僅かに接触して
もカム８はステツプモータ１０のステツプ数にして１ス
テツプ以下の範囲で往復微動するだけで回転することは
ない。この状態は、制御部１９がピン９を支え載置台５
がホームポジシヨンａに位置決めされる。したがつて、
載置台５がどの切替位置にいようとも、ステツプモータ
１０を指定した相をもつて３９ステツプ以上一方向へ回
転させることにより、載置台５のホームポジシヨンの調
整とステツプモータ１０の相合わせとを一度に容易に行
うことができる。When the pin 9 is supported by the control unit 22, the mounting table 5 is located at the switching position d, and from this state, the step motor 1 has 39 steps corresponding to three times one pitch p between the control units.
When 0 is driven to rotate the cam 8 counterclockwise, the notch 23 faces the gear 11 as shown in FIG.
2 is disengaged, the rotational inertia of the cam 8 at this time is also lost due to the plate spring 25, and even if the teeth of the gears 11 and 12 make a slight contact, the cam 8 is in the range of 1 step or less in the step number of the step motor 10. It does not rotate just with a slight reciprocating movement. In this state, the control unit 19 supports the pin 9 and the mounting table 5
Is positioned at the home position a. Therefore,
Regardless of the switching position of the mounting table 5, by rotating the step motor 10 in one direction for 39 steps or more with a designated phase, the home position of the mounting table 5 can be adjusted and the step motor 10 can be aligned. Can be done at once easily.
なお、制御部１９，２０，２１，２２はステツプモータ
１０のステツプ数にして複数ステツプに相当する長さを
有しているので、各切替位置は正確である。Since the control units 19, 20, 21, 22 have a length corresponding to a plurality of steps in the step number of the step motor 10, each switching position is accurate.
また、調整螺旋２６を回しカム８を軸方向へ微動させる
ことにより、載置台５のホームポジシヨンａをより一層
正確に定めることができる。Further, the home position a of the mounting table 5 can be more accurately determined by rotating the adjusting spiral 26 and finely moving the cam 8 in the axial direction.
発明の効果 この発明は上述のように構成したので、ステツプモータ
によりカムを回転させ載置台を変位させ、多色リボンカ
セツトのリボンの任意色のゾーンを印字部に対向させる
が、載置台はどの位置にいようともステツプモータを駆
動している限り変位しホームポジシヨンに到達し、この
ときにギヤの噛合を外すことができ、したがつて、一定
の相を指定してステツプモータをステツプ数に余裕を持
たせて駆動することにより、載置台のホームポジシヨン
を容易に決めることができ、同時に、ステツプモータの
相合わせも容易に行うことができる等の効果を有する。EFFECTS OF THE INVENTION Since the present invention is configured as described above, the cam is rotated by the step motor to displace the mounting table, and the zone of an arbitrary color of the ribbon of the multicolor ribbon cassette is made to face the printing section. Even if it is in the position, it will be displaced as long as the stepper motor is driven, and it will reach the home position, at which time the gear meshing can be disengaged. Therefore, the stepper motor can be stepped by specifying a certain phase. By driving with a margin, the home position of the mounting table can be easily determined, and at the same time, the step motors can be easily aligned with each other.
図面はこの発明の一実施例を示すもので、第１図は側面
図、第２図は平面図、第３図はステツプモータとカムと
の連結構造を拡大して示す平面図、第４図は載置台の切
替動作を示す側面図、第５図はリボンを示す平面図、第
６図はカムの螺旋の展開図、第７図は調整機構を拡大し
て示す縦断側面図である。 １……キヤリア、４……印字部、５……載置台、８……
カム、１０……ステツプモータ、１１，１２……ギヤ、
１３……多色リボンカセツト、１４……リボン、１５〜
１８……ゾーン、１９〜２２……制御部1 is a side view, FIG. 2 is a plan view, and FIG. 3 is an enlarged plan view showing a connecting structure of a step motor and a cam. Is a side view showing the switching operation of the mounting table, FIG. 5 is a plan view showing the ribbon, FIG. 6 is a developed view of the spiral of the cam, and FIG. 7 is a vertical cross-sectional side view showing the adjusting mechanism in an enlarged manner. 1 ... Carrier, 4 ... Printing section, 5 ... Standing table, 8 ...
Cam, 10 ... Step motor, 11, 12 ... Gear,
13 ... Multicolor ribbon cassette, 14 ... Ribbon, 15 to 15
18 ... Zone, 19-22 ... Control unit
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−176189（ＪＰ，Ａ) 特開 昭59−182773（ＪＰ，Ａ) 実開 昭61−143855（ＪＰ，Ｕ) 実開 昭55−94859（ＪＰ，Ｕ) 実開 昭61−133358（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-57-176189 (JP, A) JP-A-59-182773 (JP, A) Actually open 61-143855 (JP, U) Actual-open Sho 55- 94859 (JP, U) Actually opened 61-133358 (JP, U)
Claims (1)
る多色リボンカセツトを保持する載置台をキヤリアの移
動方向と直交する方向へ変位自在に設け、前記載置台を
変位させるカムを正逆回転自在のステツプモータに連結
して前記キヤリアに設け、前記ゾーンのそれぞれを印字
部に対向させるように前記載置台を各切替位置に位置決
めする複数の制御部を前記カムに形成し、前記制御部の
長さを前記ステツプモータの複数のステツプ数に対応す
る長さに設定し、前記ステツプモータから前記カムに至
る動力伝達経路中に少なくとも二つのギヤを設け、これ
らのギヤの少なくとも一方に前記載置台のホームポジシ
ヨンにおいて歯の噛合を外す切欠を形成したことを特徴
とするリボン位置切替装置。1. A mounting table holding a multicolor ribbon cassette having color-coded ribbons in a plurality of zones is provided so as to be displaceable in a direction orthogonal to the moving direction of the carrier, and a cam for displacing the mounting table is rotated in forward and reverse directions. A plurality of control units, which are provided on the carrier in connection with a free step motor and position the mounting table at each switching position so that each of the zones faces the printing unit, are formed on the cam. The length is set to a length corresponding to a plurality of step numbers of the step motor, at least two gears are provided in the power transmission path from the step motor to the cam, and at least one of these gears is mounted on the mounting table. The ribbon position switching device is characterized in that a notch for disengaging the teeth is formed in the home position of.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7378385A JPH0641217B2 (en) | 1985-04-08 | 1985-04-08 | Ribbon position switching device |
| US06/847,472 US4697942A (en) | 1985-04-08 | 1986-04-03 | Ribbon shifting device for a printing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7378385A JPH0641217B2 (en) | 1985-04-08 | 1985-04-08 | Ribbon position switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61230971A JPS61230971A (en) | 1986-10-15 |
| JPH0641217B2 true JPH0641217B2 (en) | 1994-06-01 |
Family
ID=13528138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7378385A Expired - Lifetime JPH0641217B2 (en) | 1985-04-08 | 1985-04-08 | Ribbon position switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0641217B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6422458U (en) * | 1987-07-31 | 1989-02-06 |
-
1985
- 1985-04-08 JP JP7378385A patent/JPH0641217B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61230971A (en) | 1986-10-15 |
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