JPS61217276A - Rotation-transmitting mechanism - Google Patents
Rotation-transmitting mechanismInfo
- Publication number
- JPS61217276A JPS61217276A JP5998785A JP5998785A JPS61217276A JP S61217276 A JPS61217276 A JP S61217276A JP 5998785 A JP5998785 A JP 5998785A JP 5998785 A JP5998785 A JP 5998785A JP S61217276 A JPS61217276 A JP S61217276A
- Authority
- JP
- Japan
- Prior art keywords
- rotary shaft
- shaft
- rotation
- rotating shaft
- hole
- 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
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
- B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
- B41J33/14—Ribbon-feed devices or mechanisms
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
本発明はリボンカセット形式のプリンタのリボン巻取部
等に用いられる回転伝達機構に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotation transmission mechanism used in a ribbon winding section of a ribbon cassette type printer.
従来の技術
ドツトインパクトプリンタや熱転写プリンタ等においで
、カラー印字を行う場合には、第４図に示すように、リ
ボン１２は上下に複数段に色分けされている。一般的に
は、ブラック、マゼンタ。Conventional Technology When performing color printing in a dot impact printer, a thermal transfer printer, or the like, the ribbon 12 is color-coded into a plurality of upper and lower stages, as shown in FIG. Generally black and magenta.
シアン、イエローの４色が使用式れる。このようなリボ
ンを収納するリボンカセットは、第３図に示すように、
キャリッジ５に搭載される。そして、印字中はキャリッ
ジ５側から、リボンを巻取るだめの回転力が、リボン巻
取軸２に伝達される。また、リボンの色を切替えるため
に、リボンカセットは回転中心９を支点に矢印１０方向
に回転する。Available in four colors: cyan and yellow. The ribbon cassette that stores such ribbons is as shown in Figure 3.
It is mounted on carriage 5. During printing, the rotational force of the ribbon winding shaft is transmitted from the carriage 5 side to the ribbon winding shaft 2. Further, in order to change the color of the ribbon, the ribbon cassette rotates in the direction of arrow 10 about the rotation center 9 as a fulcrum.
リボン切替の様子を第５図（ａ）および（ｂ）に示す。The state of ribbon switching is shown in FIGS. 5(a) and 5(b).
矢印１３は、印字の行われる位置である。従来、リボン
切替のだめの上下回転とキャリッジ側からリボンカセッ
トへのリボン巻取回転の伝達とを両立させるために、第
５図に示すように、キャリッジ側の回転軸にバネ１５を
使用する構成が採らｒている。Arrow 13 is the position where printing is performed. Conventionally, in order to achieve both the vertical rotation of the ribbon switching stop and the transmission of the ribbon winding rotation from the carriage side to the ribbon cassette, a configuration has been adopted in which a spring 15 is used on the rotating shaft on the carriage side, as shown in FIG. It is taken.
上述した従来の回転伝達機構では、第５図に示すように
、リボンカセットの上下回転に伴ってパネ１５がいひつ
な形となシ、回転軸１４と巻取軸２との間にバネ１５の
変形に伴う力が加わシ、この結果、駆動軸１６の回転が
重たくなる。また、巻取軸２を回転させるのに心壁ｌト
ルクは、カセット内部の賭粂件、例えは、リボンの流れ
の状態やリボンの継ぎめの位置等によシ変化する。この
ような巻取断髪トルクの変化により、バネ１５は巻取方
向にもたわみや振動を起こし、印字ムラ等の印字品質劣
化の原因となる等の欠点がある。In the conventional rotation transmission mechanism described above, as shown in FIG. A force accompanying the deformation is applied, and as a result, rotation of the drive shaft 16 becomes difficult. Further, the core wall torque required to rotate the winding shaft 2 changes depending on the conditions inside the cassette, such as the flow state of the ribbon and the position of the ribbon joint. Such changes in the winding and cutting torque cause the spring 15 to deflect and vibrate in the winding direction, resulting in disadvantages such as deterioration of printing quality such as printing unevenness.
本発明の機構は、第１の回転軸と、該第１の回転軸の一
端に形成され少なくとも１部が多角形に形成された穴と
、紋穴の多角形部と係合する複数の球面状部全一端に有
する第２の回転軸とから構成きれている。The mechanism of the present invention includes a first rotating shaft, a hole formed at one end of the first rotating shaft and at least a part of which is formed in a polygonal shape, and a plurality of spherical surfaces that engage with the polygonal part of the crest hole. It consists of a second rotating shaft provided at one end of the shaped part.
第１図（ａ）および（ｂｌは本発明の一実施例を示す断
面図である。FIGS. 1(a) and 1(bl) are cross-sectional views showing one embodiment of the present invention.
リボン巻取軸２ｉ１１：六角形の穴２ａを有する。回転
軸１はその先端部１ａが、第２図に示すように、球状の
六角形となっている。このため、リボンカセット３の上
下回転に対し、回転軸１とリボン巻取軸２との間には例
ら無理な力が加わらない。葦た、回転軸１はほぼ剛体と
して回転するので、リボンカセットの巻取トルクムラに
よる回転ムラは発生しない。Ribbon winding shaft 2i11: Has a hexagonal hole 2a. The rotating shaft 1 has a tip 1a having a spherical hexagonal shape, as shown in FIG. Therefore, when the ribbon cassette 3 rotates up and down, no excessive force is applied between the rotating shaft 1 and the ribbon winding shaft 2. Since the rotary shaft 1 rotates as a substantially rigid body, uneven rotation due to uneven winding torque of the ribbon cassette does not occur.
以上、本発明には、回転運動全無理なく伝達できるとい
う効果がある。As described above, the present invention has the advantage that rotational motion can be transmitted without any difficulty.
第１図および第２図は本発明の一実施例を説明するため
の図、第３図はカラープリンタの機構を示す斜視図、第
４図はカラーリボンカセットを示す斜視図および第５図
は従来の回転伝達機構會示す断面図である。
１・・・・・・回転軸、２・・・・・・リボン巻取軸、
３・・・・・・リボンカセット、４・・・・・・印字ヘ
ッド、５・・・・・・キャリッジ、６・・・・・・カセ
ットホルダ、７・・・・・・プラテン、８．８′・・・
・・・ガイド軸、９・・・・・・回転中心、１０・・・
・・・矢印、１１・・・・・・矢印、１２・・・−・・
カラーリボン、１３・・・・・・印字位置、１４・・・
・・・回転軸、１５・・・・・・バネ、１６・・・・・
・駆動軸。
−５，−
（ｌＺ）
第１図
第！；図1 and 2 are diagrams for explaining one embodiment of the present invention, FIG. 3 is a perspective view showing the mechanism of a color printer, FIG. 4 is a perspective view showing a color ribbon cassette, and FIG. FIG. 2 is a sectional view showing a conventional rotation transmission mechanism. 1... Rotating shaft, 2... Ribbon winding shaft,
3... Ribbon cassette, 4... Print head, 5... Carriage, 6... Cassette holder, 7... Platen, 8. 8'...
...Guide axis, 9...Rotation center, 10...
...Arrow, 11...Arrow, 12...-...
Color ribbon, 13...Print position, 14...
... Rotating shaft, 15 ... Spring, 16 ...
・Drive shaft. -5,- (lZ) Figure 1! ;figure
Claims (1)
くとも１部が多角形に形成された穴と、該穴の多角形部
と係合する複数の球面状部を一端に有する第２の回転軸
とから構成され、前記第１の回転軸の軸心方向と前記第
２の回転軸の軸心方向とが平行でないときにも前記第１
（または第２）の回転軸の回転を前記第２（または第１
）の回転軸に伝達する回転伝達機構。It has a first rotating shaft, a hole formed at one end of the first rotating shaft and at least a portion of which is formed in a polygonal shape, and a plurality of spherical portions at one end that engage with the polygonal portions of the hole. a second rotating shaft, and even when the axial direction of the first rotating shaft and the axial center direction of the second rotating shaft are not parallel, the first rotating shaft
The rotation of the (or second) rotation axis is
) Rotation transmission mechanism that transmits data to the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5998785A JPS61217276A (en) | 1985-03-25 | 1985-03-25 | Rotation-transmitting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5998785A JPS61217276A (en) | 1985-03-25 | 1985-03-25 | Rotation-transmitting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61217276A true JPS61217276A (en) | 1986-09-26 |
Family
ID=13129026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5998785A Pending JPS61217276A (en) | 1985-03-25 | 1985-03-25 | Rotation-transmitting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61217276A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201592A (en) * | 1990-08-07 | 1993-04-13 | Oki Elecric Industry Co., Ltd. | Reinking color ribbon cassette and ink ribbon selection mechanism |
| WO2019065631A1 (en) * | 2017-09-27 | 2019-04-04 | シチズン時計株式会社 | Ink ribbon support mechanism, and printer |
-
1985
- 1985-03-25 JP JP5998785A patent/JPS61217276A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201592A (en) * | 1990-08-07 | 1993-04-13 | Oki Elecric Industry Co., Ltd. | Reinking color ribbon cassette and ink ribbon selection mechanism |
| WO2019065631A1 (en) * | 2017-09-27 | 2019-04-04 | シチズン時計株式会社 | Ink ribbon support mechanism, and printer |
| JPWO2019065631A1 (en) * | 2017-09-27 | 2020-11-05 | シチズン時計株式会社 | Ink ribbon support mechanism and printer |
| US10870295B2 (en) | 2017-09-27 | 2020-12-22 | Citizen Watch Co., Ltd. | Ink ribbon support mechanism, and printer |
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