JPH0723270Y2 - Ink ribbon winding device - Google Patents
Ink ribbon winding deviceInfo
- Publication number
- JPH0723270Y2 JPH0723270Y2 JP17115487U JP17115487U JPH0723270Y2 JP H0723270 Y2 JPH0723270 Y2 JP H0723270Y2 JP 17115487 U JP17115487 U JP 17115487U JP 17115487 U JP17115487 U JP 17115487U JP H0723270 Y2 JPH0723270 Y2 JP H0723270Y2
- Authority
- JP
- Japan
- Prior art keywords
- drive shaft
- ribbon
- cap
- fixed
- attached
- 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
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 この考案は、印字部に位置するインクリボンを上下に切
り換えて色を切り換えるためにリボンカセツトを揺動自
在に設けた印字装置におけるインクリボン巻取装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICABILITY The present invention relates to an ink ribbon winding device in a printing device in which a ribbon cassette is swingably provided in order to switch colors by switching an ink ribbon located in a printing portion up and down. It is about.
従来の技術 一般に、インクリボンが収納されたリボンカセツトを用
いて印字する形式の印字装置において、例えば、インク
リボンがその幅方向に二分されて一方が黒色で他方が赤
色であり、そのリボンカセツトを上下方向に揺動させる
ことにより黒と赤との二色印字を行いえるようにした形
式のものが存する。そして、リボンカセットのスプール
の駆動は駆動モータに連結された駆動軸により行われて
いるものであるが、リボンカセツトのみを揺動させたの
では、スプールと駆動軸との連結部が屈曲してしまうの
で、従来のものにおいては、リボンカセツトの揺動とと
もに駆動軸及び駆動モータを一体的に揺動させているも
のである。2. Description of the Related Art Generally, in a printer of a type that prints using a ribbon cassette containing an ink ribbon, for example, the ink ribbon is divided into two parts in the width direction, one of which is black and the other of which is red, and the ribbon cassette is There is a type in which two-color printing of black and red can be performed by swinging vertically. The spool of the ribbon cassette is driven by the drive shaft connected to the drive motor.However, if only the ribbon cassette is swung, the connecting portion between the spool and the drive shaft is bent. Therefore, in the conventional one, the drive shaft and the drive motor are integrally swung together with the swing of the ribbon cassette.
考案が解決しようとする問題点 このような構造によると、リボンカセツトと駆動軸と駆
動モータとを一体的に動かさなければならないため、全
体が重くなり、高速で駆動することができず、また、電
気的配線も複雑化し、故障の原因の多いものである。Problems to be solved by the invention With such a structure, the ribbon cassette, the drive shaft, and the drive motor must be moved integrally, so that the whole becomes heavy and cannot be driven at high speed. Electrical wiring is also complicated and causes many failures.
問題点を解決するための手段 リボン張設部を印字部に対して上下させて色を切り換え
るようにリボンカセツトを揺動自在に取付けた印字装置
において、前記リボンカセットのリールに回転方向固定
的に係合する駆動軸部とこの駆動軸部の下端に形成され
た径大のフランジ部とよりなるリボン駆動軸を形成し、
駆動モータにより駆動される固定駆動軸に一体的に取付
けられるキヤツプに前記リボン駆動軸の駆動軸部を遊び
をもつて貫通する貫通孔と前記フランジ部が係合する係
合段部とを形成し、前記リボン駆動軸の下端と前記固定
駆動軸の上端との間に圧縮スプリングを設けた。Means for Solving the Problems In a printing apparatus in which a ribbon cassette is swingably attached so that the ribbon tension portion is moved up and down with respect to the printing portion to switch colors, the ribbon cassette reel is fixed in the rotational direction. A ribbon drive shaft formed of a drive shaft portion to be engaged and a large-diameter flange portion formed at the lower end of the drive shaft portion,
A cap integrally attached to a fixed drive shaft driven by a drive motor is provided with a through hole penetrating the drive shaft portion of the ribbon drive shaft with play and an engagement step portion with which the flange portion engages. A compression spring is provided between the lower end of the ribbon drive shaft and the upper end of the fixed drive shaft.
作用 固定駆動軸に取付けられたキヤツプで保持されているリ
ボン駆動軸は、キヤツプに対してすべての方向に揺動自
在であり、これにより、リボンカセツトが揺動しても圧
縮スプリングで押圧されているリボン駆動軸がキヤツプ
に対して揺動し、これにより、固定駆動軸とキヤツプと
を固定的に設けておいてもよく、インクリボンの切り換
えを円滑に行うことができるものである。The ribbon drive shaft, which is held by the cap attached to the fixed drive shaft, can swing in all directions with respect to the cap, so that even if the ribbon cassette swings, it is pressed by the compression spring. The ribbon drive shaft oscillates with respect to the cap, so that the fixed drive shaft and the cap may be fixedly provided, and the ink ribbon can be smoothly switched.
実施例 この考案の一実施例を図面に基づいて説明する。まず、
シヤーシ１上にはモータ軸２が設けられ、このモータ軸
２と中間駆動軸３に固定された歯車４とはアイドラギヤ
５と複数個の中間ギヤ６とを介して連結されている。Embodiment An embodiment of the present invention will be described with reference to the drawings. First,
A motor shaft 2 is provided on the chassis 1, and the motor shaft 2 and a gear 4 fixed to the intermediate drive shaft 3 are connected via an idler gear 5 and a plurality of intermediate gears 6.
前記中間駆動軸３の上端にはコの字形状の結合部７が形
成されている。この結合部７は相対向する支壁８を有
し、これらの支壁８にはピン結合孔９を有するスリツト
10が形成されている。A U-shaped coupling portion 7 is formed on the upper end of the intermediate drive shaft 3. The connecting portion 7 has supporting walls 8 facing each other, and a slit having pin connecting holes 9 in these supporting walls 8.
10 are formed.
このような中間駆動軸３の前記結合部７には、固定駆動
軸11の角柱部12が挿入され、この角柱部12に設けられた
ピン13が前記ピン結合孔９に係合して固定的に取付けら
れている。前記固定駆動軸11の上部の円形軸部14にもピ
ン15が突出形成されている。このような円形軸部14には
下方に前記ピン15と係合する鈎孔16を有する下方開口の
キヤツプ17が取付けられている。このキヤツプ17にはそ
の上方に貫通孔18と係合段部19とが形成されている。The prismatic portion 12 of the fixed drive shaft 11 is inserted into the coupling portion 7 of the intermediate drive shaft 3 as described above, and the pin 13 provided in the prismatic portion 12 engages with the pin coupling hole 9 and is fixed. Installed on. A pin 15 is also formed so as to project on the circular shaft portion 14 above the fixed drive shaft 11. A cap 17 having a downward opening, which has a hook hole 16 for engaging with the pin 15, is attached to the circular shaft portion 14 below. The cap 17 has a through hole 18 and an engagement step portion 19 formed above the cap 17.
ついで、図示しないリボンカセツト保持フレームに保持
されて先端に張設されたリボンを印字部において上下に
切り換えるよう揺動自在にリボンカセツト20が設けら
れ、このリボンカセツト20の図示しないスプールの軸孔
に嵌合するとともに前記貫通孔18を遊びをもつて貫通す
る十文字状の駆動軸部21を有するリボン駆動軸22が設け
られている。このリボン駆動軸22の下端には前記キヤツ
プ17に遊動自在に嵌合して前記係合段部19により抜け止
めされるフランジ23が形成されている。Next, a ribbon cassette 20, which is held by a ribbon cassette holding frame (not shown) and is stretched at its leading end, is swingably provided so that the ribbon is switched up and down in the printing section. A ribbon drive shaft 22 having a cross-shaped drive shaft portion 21 that fits and penetrates the through hole 18 with play is provided. A flange 23 is formed at the lower end of the ribbon drive shaft 22 so as to be loosely fitted in the cap 17 and prevented from coming off by the engagement step portion 19.
しかして、前記キヤツプ17内において、前記固定駆動軸
11の上端と前記リボン駆動軸22の下端との間には圧縮ス
プリング24が取付けられている。Then, in the cap 17, the fixed drive shaft is
A compression spring 24 is attached between the upper end of 11 and the lower end of the ribbon drive shaft 22.
このような構成において、モータ軸２の回転はアイドラ
ギヤ５、中間ギヤ６、歯車４を経て中間駆動軸３に達
し、さらに、固定駆動軸11、キヤツプ17、リボン駆動軸
22を経てリボンカセツト20のスプールを駆動する。そし
て、キヤツプ17とリボン駆動軸22との間には圧縮スプリ
ング24による押圧力が作用しているため、その摩擦力に
より回転力が伝達される。In such a configuration, the rotation of the motor shaft 2 reaches the intermediate drive shaft 3 via the idler gear 5, the intermediate gear 6, and the gear 4 and further the fixed drive shaft 11, the cap 17, the ribbon drive shaft.
Drive the spool of ribbon cassette 20 via 22. Since the pressing force of the compression spring 24 acts between the cap 17 and the ribbon drive shaft 22, the rotational force is transmitted by the frictional force.
しかして、前記リボンカセツト20が印字中に揺動して印
字色を変えるような動作を示すが、この場合には、キヤ
ツプ17に対してリボン駆動軸22が揺動し、リボンカセツ
ト20の揺動に追従する。この場合にも圧縮スプリング24
の押圧力によりリボン駆動軸22の軸心方向への復帰力と
回転力の伝達とは良好になされている。The ribbon cassette 20 swings during printing to change the print color. In this case, the ribbon drive shaft 22 swings with respect to the cap 17, and the ribbon cassette 20 swings. Follow the movement. Also in this case the compression spring 24
Due to the pressing force, the restoring force in the axial direction of the ribbon drive shaft 22 and the rotational force are transmitted well.
考案の効果 この考案は上述のように、リボン張設部を印字部に対し
て上下させて色を切り換えるようにリボンカセツトを揺
動自在に取付けた印字装置において、前記リボンカセツ
トのリールに回転方向固定的に係合する駆動軸部とこの
駆動軸部の下端に形成された径大のフランジ部とよりな
るリボン駆動軸を形成し、駆動モータにより駆動される
固定駆動軸に一体的に取付けられるキヤツプに前記リボ
ン駆動軸の駆動軸部を遊びをもつて貫通する貫通孔と前
記フランジ部が係合する係合段部とを形成し、前記リボ
ン駆動軸の下端と前記固定駆動軸の上端との間に圧縮ス
プリングを設けたので、固定駆動軸に取付けられたキヤ
ツプで保持されているリボン駆動軸は、キヤツプに対し
てすべての方向に揺動自在であり、これにより、リボン
カセツトが揺動しても圧縮スプリングで押圧されている
リボン駆動軸がキヤツプに対して揺動し、これにより、
固定駆動軸とキヤツプとを固定的に設けておいてもよ
く、インクリボンの切り換えを円滑に行うことができる
ものである。Advantageous Effect of the Invention As described above, the present invention is a printer in which the ribbon cassette is swingably attached so that the ribbon tension portion is moved up and down with respect to the printing portion to switch colors. A ribbon drive shaft is formed by a drive shaft portion that is fixedly engaged and a large-diameter flange portion formed at the lower end of the drive shaft portion, and is integrally attached to a fixed drive shaft that is driven by a drive motor. The cap is formed with a through hole penetrating through the drive shaft portion of the ribbon drive shaft with play and an engagement step portion with which the flange portion is engaged, and the lower end of the ribbon drive shaft and the upper end of the fixed drive shaft are formed. Since a compression spring is installed between the ribbon drive shaft and the ribbon drive shaft, which is held by the cap attached to the fixed drive shaft, can be swung in all directions with respect to the cap. The ribbon drive shaft, which is pressed by the compression spring, swings with respect to the cap even when the shutter swings.
The fixed drive shaft and the cap may be fixedly provided so that the ink ribbons can be switched smoothly.
図面はこの考案の一実施例を示すもので、第１図は側面
図、第２図は一部を切り欠いた側面図、第３図は分解斜
視図である。 11……固定駆動部、17……キヤツプ、18……貫通孔、19
……係合段部、20……リボンカセツト、21……駆動軸
部、22……リボン駆動軸、23……フランジ、24……圧縮
スプリングThe drawings show an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a partially cutaway side view, and FIG. 3 is an exploded perspective view. 11 …… Fixed drive, 17 …… Cap, 18 …… Through hole, 19
...... Engagement step, 20 ...... Ribbon cassette, 21 ...... Drive shaft, 22 ...... Ribbon drive shaft, 23 ...... Flange, 24 ...... Compression spring
Claims (1)
色を切り換えるようにリボンカセツトを揺動自在に取付
けた印字装置において、前記リボンカセツトのリールに
回転方向固定的に係合する駆動軸部とこの駆動軸部の下
端に形成された径大のフランジ部とよりなるリボン駆動
軸を形成し、駆動モータにより駆動される固定駆動軸に
一体的に取付けられるキヤツプに前記リボン駆動軸の駆
動軸部を遊びをもつて貫通する貫通孔と前記フランジ部
が係合する係合段部とを形成し、前記リボン駆動軸の下
端と前記固定駆動軸の上端との間に圧縮スプリングを設
けたことを特徴とするインクリボン巻取装置。1. A printer in which a ribbon cassette is swingably attached so as to switch colors by moving a ribbon tension portion up and down relative to a printing portion, and fixedly engages a reel of the ribbon cassette in a rotational direction. A ribbon drive shaft is formed of a drive shaft portion and a large-diameter flange portion formed at a lower end of the drive shaft portion, and the ribbon drive shaft is attached to a cap integrally attached to a fixed drive shaft driven by a drive motor. A through hole penetrating through the drive shaft portion of the above with play and an engagement step portion with which the flange portion engages, and a compression spring is provided between the lower end of the ribbon drive shaft and the upper end of the fixed drive shaft. An ink ribbon winding device characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17115487U JPH0723270Y2 (en) | 1987-11-09 | 1987-11-09 | Ink ribbon winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17115487U JPH0723270Y2 (en) | 1987-11-09 | 1987-11-09 | Ink ribbon winding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0176256U JPH0176256U (en) | 1989-05-23 |
| JPH0723270Y2 true JPH0723270Y2 (en) | 1995-05-31 |
Family
ID=31462731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17115487U Expired - Lifetime JPH0723270Y2 (en) | 1987-11-09 | 1987-11-09 | Ink ribbon winding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723270Y2 (en) |
-
1987
- 1987-11-09 JP JP17115487U patent/JPH0723270Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0176256U (en) | 1989-05-23 |
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