JPH02212185A - Ink ribbon cassette - Google Patents
Ink ribbon cassetteInfo
- Publication number
- JPH02212185A JPH02212185A JP3246389A JP3246389A JPH02212185A JP H02212185 A JPH02212185 A JP H02212185A JP 3246389 A JP3246389 A JP 3246389A JP 3246389 A JP3246389 A JP 3246389A JP H02212185 A JPH02212185 A JP H02212185A
- Authority
- JP
- Japan
- Prior art keywords
- ink ribbon
- friction member
- contact friction
- back tension
- contact
- 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
- 239000000428 dust Substances 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 6
- 238000007639 printing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
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、プリンターにおいてプラテンと対向して平行
に往復動するキャリッジに装着されて、印字に従い走行
するインクリボンの走行性を安定させるために、インク
リボンの走行経路上にインクリボンにバックテンション
を付与する接触摩擦部材を配設したインクリボンカセッ
トに関する。Detailed Description of the Invention (Field of Industrial Application) The present invention is used to stabilize the running performance of an ink ribbon that is mounted on a carriage that reciprocates in parallel with a platen in a printer and runs in accordance with printing. The present invention relates to an ink ribbon cassette in which a contact friction member for applying back tension to the ink ribbon is disposed on the travel path of the ink ribbon.
（従来の技術）
従来のこの種のインクリボンカセットでは、例えば板バ
ネに接触摩擦部材としてフェルト等が付着され、そのフ
ェルト等が板バネの弾力によってインクリボンに接触さ
れることによりインクリボンにパックテンションが付与
されていた。(Prior Art) In a conventional ink ribbon cassette of this kind, for example, a felt or the like is attached to a plate spring as a contact friction member, and the felt or the like is brought into contact with the ink ribbon by the elasticity of the plate spring, thereby applying pack tension to the ink ribbon. was granted.
（発明が解決しようとする課題）
ところで、インクリボンに接触摩擦部材を接触させると
、インクリボンの走行によってインクリポンと接触摩擦
部材の間に静電気が発生して接触摩擦部材におけるイン
クリボンとの接触面にインクかすや塵埃が付着し、この
塵埃等のためにインクリボンの印字面の地が汚れたシ、
又、インクリボンのバックテンションが増大する問題が
あった。そしてインクリボンのバックテンションが増大
すると、インクリボンの送シが損なわれてインクリボン
の一部箇所のみが用紙に対し接触した状態でインクリボ
ンと用紙がこすれるので用紙が汚れたり印字濃度が低下
していわゆるスティック現象を生じたシ、又はインクリ
ボンが折れる等の弊が生じた。そこで本発明は、静電気
が逃げやすく、塵埃等の付着が減少し、摩擦係数の上昇
を抑えて インクリボンのバックテンションの増大を防
止することが可能なインクリボンカセットの提供を目的
とする。(Problem to be Solved by the Invention) By the way, when a contact friction member is brought into contact with an ink ribbon, static electricity is generated between the ink ribbon and the contact friction member as the ink ribbon runs, and the contact surface of the contact friction member with the ink ribbon is damaged. Ink scum and dust may adhere to the ink ribbon, and the printing surface of the ink ribbon may become dirty due to this dust.
Further, there was a problem in that the back tension of the ink ribbon increased. When the back tension of the ink ribbon increases, the feeding of the ink ribbon is impaired, and the ink ribbon and paper rub together with only a portion of the ink ribbon in contact with the paper, resulting in paper stains and decreased print density. This resulted in problems such as a so-called stick phenomenon or the ink ribbon breaking. SUMMARY OF THE INVENTION An object of the present invention is to provide an ink ribbon cassette that allows static electricity to escape easily, reduces adhesion of dust, etc., suppresses an increase in the coefficient of friction, and prevents an increase in back tension of the ink ribbon.
（課題を解決するための手段）
上記目的を達成するために、本発明におけるインクリボ
ンカセットは、インクリボンの走行経路上にインクリボ
ンにバックテンションを付与する接触摩擦部材を配設し
たインクリボンカセットにおいて、上記接触摩擦部材に
インクリボンの走行方向と平行なスリットを設けたこと
を特徴とするものである。(Means for Solving the Problems) In order to achieve the above object, an ink ribbon cassette according to the present invention is an ink ribbon cassette in which a contact friction member for applying back tension to the ink ribbon is disposed on the traveling path of the ink ribbon. This invention is characterized in that the contact friction member is provided with a slit parallel to the running direction of the ink ribbon.
（作 用）
接触摩擦部材にインクリボンの走行方向と平行なスリッ
トを設けることによシ、インクリボンと接触摩擦部材間
に生じる静電気が逃げやすくなシ、また塵埃等の付着が
減少し、摩擦係数の上昇が抑えられてインクリボンのバ
ックテンションの増大が防止される。(Function) By providing the contact friction member with slits parallel to the running direction of the ink ribbon, static electricity generated between the ink ribbon and the contact friction member can easily escape, and the adhesion of dust etc. is reduced, reducing friction. An increase in the coefficient is suppressed, and an increase in back tension of the ink ribbon is prevented.
（実施例） 図面を参照して実施例について説明する。(Example) Examples will be described with reference to the drawings.
まず、第１図に示すようにカセットケース（１）内には
送出スプール（２）と巻取スプール（３）が並置されて
いる。送出スプール（２）に巻かれたインクリボン（４
）は、所要位置に配置されたガイドローラ（５）に導か
れ、途中でキャリッジのサーマル印字ヘット責イ）を挿
通させる側壁外面凹部（６）に露出しながら、巻取スプ
ール（３）まで達している。このインクリボン（４）の
走行経路上の印字ヘッド（イ）と接触する手前の所要位
置で、基端フック部（７）をカセットケース（１）の底
面に突設されたボス部（８）に係止した板バネ（９）の
先端に付着されたフェルト製の接触摩擦部材（１Ｇがそ
の板バネ（９）の弾力によってインクリボン（４）へ接
触してガイドローラ（５）と共にインクリボン（４）を
挟圧してインクリボン（４）に所要のバックテンション
を付与している。そしてこの接触摩擦部材０〔には、第
２図に示すように、インクリボン（４）の走行方向と平
行な数条のスリットαυが設けられている。First, as shown in FIG. 1, a delivery spool (2) and a take-up spool (3) are juxtaposed in a cassette case (1). The ink ribbon (4) wound around the delivery spool (2)
) is guided by a guide roller (5) placed at a predetermined position, and reaches the take-up spool (3) while being exposed to a recess (6) on the outer surface of the side wall through which the thermal printing head (A) of the carriage is inserted. ing. At a predetermined position on the running path of the ink ribbon (4) before it comes into contact with the print head (a), the proximal end hook part (7) is connected to a boss part (8) protruding from the bottom of the cassette case (1). The felt contact friction member (1G) attached to the tip of the plate spring (9) that is engaged with the plate spring (9) contacts the ink ribbon (4) due to the elasticity of the plate spring (9), and the ink ribbon is removed together with the guide roller (5). (4) is pressed to give the ink ribbon (4) the required back tension.As shown in Several parallel slits αυ are provided.
（発明の効果）
本発明は叙上の通シであシ、接触摩擦部材にインクリボ
ンの走行方向と平行なスリットを設けることにより、接
触摩擦部材とインクリボンの擦れによって生じる静電気
が逃げやすくなり、接触摩擦部材に対する塵埃等の付着
が減少し、接触摩擦部材の摩擦係数の上昇が抑えられ、
インクリボンのバックテンションの増大が回避され、よ
ってインクリボンの印字面の汚れやステインク現象の発
生及びインクリボンの折れ等の弊が解消される効果があ
る。(Effects of the Invention) In addition to the above-mentioned advantages, the present invention provides a slit in the contact friction member that is parallel to the running direction of the ink ribbon, so that static electricity generated by rubbing between the contact friction member and the ink ribbon can easily escape. , the adhesion of dust, etc. to the contact friction member is reduced, and the increase in the friction coefficient of the contact friction member is suppressed.
An increase in the back tension of the ink ribbon is avoided, which has the effect of eliminating problems such as staining of the printing surface of the ink ribbon, occurrence of stain phenomenon, and bending of the ink ribbon.
第１図は内部乏透視した平面図、第２図は接触摩擦部材
の拡大斜視図である。
（１１・・・カセットケース、＜２１・・・送［ス’−
ル、（３）・・・巻取スプール、（４）・・・インクリ
ボン、（５）・・・ガイドローラ、（９）・・・板バネ
、α〔・・・接触摩擦部材、αυ・・・スリット。
特許 出願人 三菱鉛筆株式会社FIG. 1 is a plan view with limited internal transparency, and FIG. 2 is an enlarged perspective view of the contact friction member. (11...Cassette case, <21...Transfer [S'-
(3)... Take-up spool, (4)... Ink ribbon, (5)... Guide roller, (9)... Leaf spring, α [... Contact friction member, αυ ··slit. Patent Applicant: Mitsubishi Pencil Co., Ltd.
Claims (1)
シヨンを付与する接触摩擦部材を配設したインクリボン
カセットにおいて、上記接触摩擦部材にインクリボンの
走行方向と平行なスリットを設けたことを特徴とするイ
ンクリボンカセット。An ink ribbon cassette in which a contact friction member for applying back tension to the ink ribbon is disposed on a running path of the ink ribbon, characterized in that the contact friction member is provided with a slit parallel to the running direction of the ink ribbon. set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3246389A JPH02212185A (en) | 1989-02-10 | 1989-02-10 | Ink ribbon cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3246389A JPH02212185A (en) | 1989-02-10 | 1989-02-10 | Ink ribbon cassette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02212185A true JPH02212185A (en) | 1990-08-23 |
| JPH0558399B2 JPH0558399B2 (en) | 1993-08-26 |
Family
ID=12359665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3246389A Granted JPH02212185A (en) | 1989-02-10 | 1989-02-10 | Ink ribbon cassette |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02212185A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290408B1 (en) * | 1998-11-10 | 2001-09-18 | Alps Electric Co., Ltd. | Ribbon cassette with friction mechanism |
-
1989
- 1989-02-10 JP JP3246389A patent/JPH02212185A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290408B1 (en) * | 1998-11-10 | 2001-09-18 | Alps Electric Co., Ltd. | Ribbon cassette with friction mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0558399B2 (en) | 1993-08-26 |
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