JPH0653423B2 - Paper holding mechanism for printer - Google Patents
Paper holding mechanism for printerInfo
- Publication number
- JPH0653423B2 JPH0653423B2 JP60049810A JP4981085A JPH0653423B2 JP H0653423 B2 JPH0653423 B2 JP H0653423B2 JP 60049810 A JP60049810 A JP 60049810A JP 4981085 A JP4981085 A JP 4981085A JP H0653423 B2 JPH0653423 B2 JP H0653423B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- platen
- lever rod
- guide
- urging
- 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
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000000470 constituent Substances 0.000 description 1
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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0045—Guides for printing material
- B41J11/005—Guides in the printing zone, e.g. guides for preventing contact of conveyed sheets with printhead
-
- 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
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
- B41J13/14—Aprons or guides for the printing section
Landscapes
- Handling Of Cut Paper (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
- Handling Of Sheets (AREA)
Description
【発明の詳細な説明】 技術分野 本発明はシリアルプリンタ等の印字装置における用紙ガ
イドに関し、特に印字用紙の用紙押え機構に関する。TECHNICAL FIELD The present invention relates to a paper guide in a printing device such as a serial printer, and more particularly to a paper pressing mechanism for printing paper.
従来技術 従来、この種のシリアルプリンタにおいては、用紙押え
は用紙送りローラと用紙押えローラのみに頼っていて、
印字部の用紙ガイドは単に用紙の送りを案内することを
目的として設けられていた。2. Description of the Related Art Conventionally, in this type of serial printer, the paper presser relies only on the paper feed roller and the paper presser roller,
The paper guide of the printing unit is provided only for guiding the paper feed.
また、上述した従来の用紙ガイドは、プラテン周面とほ
ぼ平行な間隔を有してキャリッジ部に配置されているた
め、用紙送りローラと用紙押えローラ間で用紙がプラテ
ン周上で浮き、活字体の打撃による騒音が高くなり、し
かも用紙送り精度を低下せしめる欠点があった。Further, since the above-described conventional paper guide is arranged in the carriage portion with a space substantially parallel to the platen peripheral surface, the paper floats on the platen circumference between the paper feed roller and the paper pressing roller, and There is a drawback that the noise caused by hitting becomes high and the paper feeding accuracy is lowered.
発明の目的 本発明は、上述の従来機構の欠点を解消すべくなされた
ものであり、用紙をプラテン周面に押圧すべく作用させ
ることで、印字騒音を低く押え且つ用紙の送り精度を高
めることを図った用紙押え機構の提供を目的としてい
る。An object of the present invention is to eliminate the above-mentioned drawbacks of the conventional mechanism, and to press the paper against the peripheral surface of the platen, thereby suppressing the printing noise and improving the feeding accuracy of the paper. The purpose of the present invention is to provide a paper pressing mechanism that aims at
発明の構成 この目的達成のために、本発明における用紙押え機構
は、プラテンと用紙ガイドとを含み、前記プラテン周上
の用紙に印字をなすようにした印字装置の用紙押え機構
であって、前記用紙ガイドをキャリッジに揺動自在に軸
支する軸支部材と、前記軸支部材を回動支点として前記
用紙ガイドをプラテン周上に付勢する付勢部材と、前記
付勢部材による前記用紙ガイドの前記プラテン周上への
付勢を解除する解除手段とを設け、前記付勢部材による
前記用紙ガイドの前記プラテン周上への付勢によって前
記用紙を前記プラテン周上に押圧せしめる構成となって
いる。To achieve the above object, a paper pressing mechanism according to the present invention is a paper pressing mechanism of a printing device, which includes a platen and a paper guide, and prints on a paper on the circumference of the platen. A shaft supporting member that pivotally supports the paper guide on the carriage, a biasing member that biases the paper guide around the platen with the shaft supporting member as a pivot, and the paper guide by the biasing member. And a releasing means for releasing the urging of the sheet guide onto the platen circumference, and the urging member urges the sheet guide onto the platen circumference by urging the sheet guide onto the platen circumference. There is.
実施例 次に、本発明の実施例である印字装置の用紙押え機構に
ついて図面を参照して説明する。Embodiment Next, a paper pressing mechanism of a printing apparatus according to an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例の側面図である。プラテン６
に巻き付けられた用紙７は、用紙フィードローラ８と用
紙押えローラ９及び用紙ガイド１とによりプラテン６周
上に押圧された状態で、プラテン回転による用紙送りさ
れる。用紙ガイド１は第１梃子桿２の一端から突出して
設けられ、この第１梃子桿２はキャリッジ５に支点ピン
１０で軸支されて揺動自在な形となっている。FIG. 1 is a side view of an embodiment of the present invention. Platen 6
The sheet 7 wound around the sheet is fed by the platen rotation while being pressed on the circumference of the platen 6 by the sheet feed roller 8, the sheet pressing roller 9 and the sheet guide 1. The paper guide 1 is provided so as to project from one end of the first lever rod 2, and the first lever rod 2 is pivotally supported by a carriage 5 by a fulcrum pin 10 to be swingable.
即ち、第１梃子桿２の他端にはばね部材４が弾着されて
いて、この弾発力によって第１梃子桿２が支点ピン１０
を回動支点とする反時計廻りの方向に押し上げられ、用
紙ガイド１をプラテン６周面に押圧する方向に附勢され
ているのである。That is, the spring member 4 is elastically attached to the other end of the first lever rod 2, and the elastic force of the spring member 4 causes the first lever rod 2 to support the fulcrum pin 10.
The sheet guide 1 is pushed up in a counterclockwise direction with the rotation fulcrum as a fulcrum, and is biased in a direction to press the sheet guide 1 against the peripheral surface of the platen 6.
又、上記ばね部材４に挿通する格好で、第１梃子桿２の
ブラケット２ａと電磁ソレノイド等による駆動部３の作
動ロッド３ａとが相対的に回動自在に枢着されている。Further, the bracket 2a of the first lever rod 2 and the actuating rod 3a of the drive unit 3 formed by an electromagnetic solenoid or the like are pivotally mounted so as to be inserted through the spring member 4 and relatively rotatable.
駆動部３の通電による作動で作動ロッド３ａが引き戻さ
れると、第１梃子桿２がそのブラケット２ａを介しばね
部材４の附勢力に抗して支点ピン１０を回動支点とする
時計廻りの方向（図の矢印）に回動し、用紙ガイド１を
プラテン６周面から引き離して、用紙７を解放する構成
となっている。When the actuating rod 3a is pulled back by the operation of energizing the driving portion 3, the first lever rod 2 resists the urging force of the spring member 4 through the bracket 2a thereof and rotates in the clockwise direction with the fulcrum pin 10 as the pivot fulcrum. By rotating the sheet guide 1 from the peripheral surface of the platen 6 by rotating the sheet guide 1 (arrow in the figure), the sheet 7 is released.
なお、その他の構成部材として、リボン１３を介して用
紙７に印字する印字体１１及びこの印字体１１を打撃す
るハンマ機構１２等が図示されている。As other constituent members, a print body 11 for printing on the paper 7 via the ribbon 13, a hammer mechanism 12 for hitting the print body 11, and the like are shown.
一方、第２図は本発明による他の実施例を示す。On the other hand, FIG. 2 shows another embodiment according to the present invention.
即ち、上記した第１実施例の構造において、第１梃子桿
２のブラケット２ａが図の上部に延長したものとなさ
れ、このブラケット２ａに第２梃子桿１５の先端部が回
動自在に軸支され、しかもこの第２梃子桿１５はキャリ
ッジ５側の支持ブラケット１６に支点ピン１６ａを介し
て揺動自在に担持されている。That is, in the structure of the first embodiment described above, the bracket 2a of the first lever rod 2 is extended to the upper part of the figure, and the tip of the second lever rod 15 is rotatably supported by the bracket 2a. Moreover, the second lever rod 15 is swingably supported by the support bracket 16 on the carriage 5 side through the fulcrum pin 16a.
次に、既設のリボン１３の収納カートリッジ１４の後方
端に上記第２梃子桿１５の後端部が下方から支えるよう
にして当接しており、第２梃子桿１５に弾着された板ば
ね１７の弾発力によって、収納カートリッジ１４がその
回動支点１４ａを中心に時計廻り方向へ回動するように
附勢された構成である。但し、板ばね１７を設けない場
合は、収納カートリッジ１４の後方端と第２梃子桿１５
の後端部とが相対的に回動自在に結合された構成として
も良い。Next, the rear end of the second lever rod 15 is in contact with the rear end of the storage cartridge 14 of the existing ribbon 13 so as to support it from below, and the leaf spring 17 elastically attached to the second lever rod 15 is attached. The storage cartridge 14 is urged by the elastic force to rotate in the clockwise direction around the rotation fulcrum 14a. However, when the leaf spring 17 is not provided, the rear end of the storage cartridge 14 and the second lever rod 15
The rear end portion may be relatively rotatably coupled.
かかる構成によって、第１実施例における動作の如く
に、駆動部３が作動してばね部材４の附勢力に抗しつ
つ、第１梃子桿２を回動ピン１０を中心に時計廻り方向
に回動せしめて、用紙ガイド１をプラテン６周面から引
き離す。With such a configuration, as in the operation of the first embodiment, the drive portion 3 operates and resists the biasing force of the spring member 4, and the first lever rod 2 is rotated in the clockwise direction about the rotating pin 10. The paper guide 1 is moved and pulled away from the peripheral surface of the platen 6.
これと同時に、第１梃子桿２のブラケット２ａを介して
第２梃子桿１５が支点ピン１６ａの周りを反時計廻りの
方向に回動し、リボン収納カートリッジ１４をその回動
支点１４ａを中心に反時計廻りの方向へ回動せしめる。
こうして、第１梃子桿２の揺動が第２梃子桿１５を介し
て収納カートリッジ１４に伝達され、リボン１３が収納
カートリッジ１４と共に図の下方に向かって回動し、用
紙７に印字された文字が可視状態となって、いわゆるリ
ボンカートリッジのリトラクションと称される動作が、
この動作駆動部を兼ねる単一の駆動部３の作動で行われ
ることとなるのである。At the same time, the second lever rod 15 rotates counterclockwise around the fulcrum pin 16a via the bracket 2a of the first lever rod 2 to move the ribbon storage cartridge 14 around the pivot fulcrum 14a. Turn it counterclockwise.
In this way, the swing of the first lever rod 2 is transmitted to the storage cartridge 14 via the second lever rod 15, and the ribbon 13 is rotated together with the storage cartridge 14 downward in the drawing to print the characters printed on the paper 7. Becomes visible, and the operation called so-called ribbon cartridge retraction,
This is performed by the operation of the single drive unit 3 which also serves as this operation drive unit.
発明の効果 以上説明した様に、本発明による用紙押え機構によれ
ば、印字時に用紙ガイドで用紙をプラテン周上に密着押
圧し、用紙送りローラと用紙押えローラ間での用紙のプ
ラテン周上からの浮き上がりを防ぐことにより、印字騒
音を低くし且つ用紙送り精度を高める効果がある。As described above, according to the paper pressing mechanism of the present invention, the paper guide closely presses the paper on the platen circumference at the time of printing, and the paper is pressed from the platen circumference between the paper feeding roller and the paper pressing roller. By preventing the floating, the printing noise can be reduced and the paper feeding accuracy can be improved.
第１図は本発明の一実施例の側面図、第２図は他実施例
の側面図である。 主要部分の符号の説明 １……用紙ガイド、２……第１梃子桿 ３……駆動部、４……ばね部材 ５……キャリッジ、６……プラテン ７……用紙、８……用紙送りローラ ９……用紙押えローラ、１３……リボン １４……リボン収納カートリッジ １５……第２梃子桿FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is a side view of another embodiment. Explanation of symbols of main parts 1 ... Paper guide, 2 ... First lever rod 3 ... Drive unit, 4 ... Spring member 5 ... Carriage, 6 ... Platen 7 ... Paper, 8 ... Paper feed roller 9 ...... Paper pressing roller, 13 ...... Ribbon 14 ...... Ribbon storage cartridge 15 ...... Second lever rod
Claims (1)
テン周上の用紙に印字をなすようにした印字装置の用紙
押え機構であって、前記用紙ガイドをキャリッジに揺動
自在に軸支する軸支部材と、前記軸支部材を回動支点と
して前記用紙ガイドをプラテン周上に付勢する付勢部材
と、前記付勢部材による前記用紙ガイドの前記プラテン
周上への付勢を解除する解除手段とを設け、前記付勢部
材による前記用紙ガイドの前記プラテン周上への付勢に
よって前記用紙を前記プラテン周上に押圧せしめるよう
にしたことを特徴とする用紙押え機構。1. A paper pressing mechanism of a printing device, comprising a platen and a paper guide, for printing on a paper on the platen circumference, the shaft supporting the paper guide swingably on a carriage. A supporting member, an urging member for urging the paper guide around the platen with the shaft supporting member as a fulcrum of rotation, and a release for releasing the urging of the paper guide around the platen by the urging member. And a means for urging the sheet guide on the platen circumference by the urging member to press the sheet on the platen circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60049810A JPH0653423B2 (en) | 1985-03-13 | 1985-03-13 | Paper holding mechanism for printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60049810A JPH0653423B2 (en) | 1985-03-13 | 1985-03-13 | Paper holding mechanism for printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61209180A JPS61209180A (en) | 1986-09-17 |
| JPH0653423B2 true JPH0653423B2 (en) | 1994-07-20 |
Family
ID=12841479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60049810A Expired - Lifetime JPH0653423B2 (en) | 1985-03-13 | 1985-03-13 | Paper holding mechanism for printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0653423B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4761664A (en) * | 1987-03-02 | 1988-08-02 | Eastman Kodak Company | Print media handling system for compact printer with traversing, multiple print head carriage |
| JPH04369568A (en) * | 1991-06-18 | 1992-12-22 | Juki Corp | Medium printer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585786B2 (en) * | 1973-09-12 | 1983-02-01 | 株式会社日立製作所 | Print head assembly position adjustment mechanism |
| JPS5489906U (en) * | 1977-12-07 | 1979-06-26 | ||
| JPS5576156U (en) * | 1978-11-17 | 1980-05-26 | ||
| JPS59160252U (en) * | 1983-04-13 | 1984-10-26 | 株式会社リコー | Paper feeding device |
| JPS59198172A (en) * | 1983-04-25 | 1984-11-09 | Citizen Watch Co Ltd | Opening and closing mechanism for friction roller and pressure sheet in printer |
-
1985
- 1985-03-13 JP JP60049810A patent/JPH0653423B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61209180A (en) | 1986-09-17 |
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