JPH09255191A - Paper pressing mechanism of printer - Google Patents
Paper pressing mechanism of printerInfo
- Publication number
- JPH09255191A JPH09255191A JP9350396A JP9350396A JPH09255191A JP H09255191 A JPH09255191 A JP H09255191A JP 9350396 A JP9350396 A JP 9350396A JP 9350396 A JP9350396 A JP 9350396A JP H09255191 A JPH09255191 A JP H09255191A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- paper pressing
- pressing plate
- base member
- pressing lever
- 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
Landscapes
- Handling Of Cut Paper (AREA)
- Registering Or Overturning Sheets (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は印字の際に用紙が動
かないように押える紙押え機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper pressing mechanism for pressing a paper so that the paper does not move during printing.
【０００２】[0002]
【従来技術】一般に、チェックライタには外周面に数字
や記号を表示した活字輪が備えられ、この活字輪を回し
て所定の数字や記号を選択し、これをプラテン上の小切
手や手形に押し付けて打ち出すように構成されている。
そして、小切手や手形の紙面に立体的なキザミ模様が出
るように、活字輪の活字とこれを受けるプラテンとには
それぞれ波形の凹凸が形成されている。したがって、プ
ラテン上の紙は印字時には凹凸の噛み合わせの間に押え
つけられるので動くことがない。2. Description of the Related Art Generally, a check writer is provided with a type ring having numbers or symbols displayed on its outer peripheral surface. The type ring is rotated to select a predetermined number or symbol, and this is pressed against a check or bill on a platen. It is configured to launch.
Then, in order that a three-dimensional checkerboard pattern appears on the paper surface of the check or the bill, the corrugated concavo-convex pattern is formed on each of the printing characters of the printing wheel and the platen that receives the printing characters. Therefore, the paper on the platen does not move because it is pressed during the meshing of the irregularities during printing.
【０００３】ところが、最近、活字輪の代りにドットプ
リンタ方式の印字ヘッドを用い、ドットで印字するとと
もに、キザミ模様も刻設しようとすることが試みられて
いる。However, recently, it has been attempted to use a dot printer type print head instead of the type wheel to print with dots and to engrave a scratch pattern.
【０００４】[0004]
【発明が解決しようとする課題】しかし、この印字方式
では印字ヘッドを移動させながら印字するので、紙を固
定しておかないと、印字の際に突き出たドットや、印字
ヘッドとともに移動するインクリボンに紙が当たって動
かされてしまい、印字不良が発生する。However, in this printing method, printing is performed while moving the print head. Therefore, if the paper is not fixed, the dots protruding during printing and the ink ribbon that moves together with the print head. The paper hits the paper and is moved, causing printing defects.
【０００５】本発明は上記問題点を解消し、印字時に用
紙が動かないように保持することができる紙押え機構を
提供することをその課題とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a paper pressing mechanism capable of holding the paper so that it does not move during printing.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するた
め、本発明に係る印字装置における紙押え機構は、ベー
ス部材上に設けられた細長板状のプラテンの長手方向に
沿って印字ヘッドを有するプリンタキャリッジを移動さ
せ、上記プラテン上に配置された用紙に印字する印字装
置において、上記ベース部材の前側には上記プラテンと
ともに紙受け台を形成し、ベース部材の上方には紙押え
プレートを配置し、その左右両側の略中央部を上記ベー
ス部材の両側の側壁に揺動可能に軸支し、上記紙押えプ
レートの前部下面に上記紙受け台に対応する押圧部を形
成し、紙押えプレートを上記押圧部が紙受け台に当接す
るように付勢し、上記紙押えプレートの後部には左右方
向に紙押えレバーを配置し、上記ベース部材の一方の側
壁には、上記紙押えレバーの一端を上下方向に回動可能
に軸支し、紙押えレバーの他端には漸次上向きに傾斜す
る傾斜面を形成するとともに、上記プリンタキャリッジ
の後部には、待機位置にあるときに上記紙押えレバーの
傾斜面に係合して紙押えレバーを上記付勢力に抗して下
方に回動させる係合凸部を形成し、上記紙押えレバーの
略中央部の下面には、下方に回動時に上記紙押えプレー
トの後部の中央に係合して押圧する係合部を形成したこ
とを特徴とする。In order to solve the above problems, the paper pressing mechanism in the printing apparatus according to the present invention has a print head along the longitudinal direction of an elongated platen platen provided on a base member. In a printing device that moves a printer carriage to print on a sheet of paper placed on the platen, a paper tray is formed on the front side of the base member together with the platen, and a paper holding plate is placed above the base member. , The left and right substantially central portions thereof are pivotally supported by the side walls on both sides of the base member, and a pressing portion corresponding to the paper tray is formed on the lower surface of the front portion of the paper pressing plate. Urging the pressing portion to contact the paper receiving tray, and disposing a paper pressing lever in the left-right direction at the rear portion of the paper pressing plate, and pressing the paper pressing lever on one side wall of the base member. One end of the bar is pivotally supported in the vertical direction, the other end of the paper pressing lever is formed with an inclined surface that gradually inclines upward, and the rear portion of the printer carriage has the above-mentioned structure when in the standby position. An engaging convex portion that engages with the inclined surface of the paper pressing lever to rotate the paper pressing lever downward against the biasing force is formed. It is characterized in that an engaging portion for engaging with and pressing the center of the rear portion of the paper pressing plate is formed when the paper pressing plate is rotated.
【０００７】[0007]
【発明の実施の形態】図１はチェックライタの斜視図
で、このチェックライタは本体１の前下部にテーブル２
を設け、本体１とテーブル２との間に用紙（小切手、手
形等）３を差し込み、印字合せ窓４から用紙３の金額部
５をプラテン上に配置し、本体１のキーボード部６で所
定の金額を選択し、表示部７で確認した後に本体１の内
部の印字装置を作動させて印字を実行させるものであ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a check writer.
Is provided, a sheet of paper (check, bill, etc.) 3 is inserted between the main body 1 and the table 2, the amount section 5 of the sheet of paper 3 is placed on the platen from the print alignment window 4, and the keyboard section 6 of the main body 1 is used to After the amount of money is selected and confirmed on the display unit 7, the printing device inside the main body 1 is operated to perform printing.
【０００８】図２に示されるように、テーブル２はベー
ス部材８上に設けられ、プラテン９は細長板状のプラテ
ンシートによって構成されている。また、ベース部材８
の両側壁１０にはラック部材１２が配置されている。こ
のラック部材１２にはプリンタキャリッジ１３の歯車１
４、１５が噛合し、この歯車はモータ１６に連係してい
る。As shown in FIG. 2, the table 2 is provided on the base member 8 and the platen 9 is constituted by a platen sheet having an elongated plate shape. Also, the base member 8
Rack members 12 are arranged on both side walls 10. The rack member 12 includes a gear 1 of the printer carriage 13.
4, 15 mesh with each other, and this gear is linked to the motor 16.
【０００９】印字装置は、印字ヘッド１７を上記プラテ
ン９の長手方向に沿って移動させながらプラテン９上の
用紙３に印字するもので、印字ヘッド１７はプリンタキ
ャリッジ１３に設けられ、プリンタキャリッジ１３は、
モータ１６によってラック部材１２に噛合した歯車１
４、１５を回転駆動することにより、ベース部材８の側
壁１０の間に支持されたメインシャフト１８に沿って左
右に移動する。そして、プリンタキャリッジ１３の移動
中に印字ヘッド１７によって数字や文字・記号が印字さ
れるように構成されている。The printing device prints on the paper 3 on the platen 9 while moving the print head 17 along the longitudinal direction of the platen 9. The print head 17 is provided on the printer carriage 13, and the printer carriage 13 is ,
Gear 1 meshed with rack member 12 by motor 16
By rotationally driving the motors 4 and 15, the base member 8 is moved left and right along the main shaft 18 supported between the side walls 10 of the base member 8. The print head 17 prints numbers, characters and symbols while the printer carriage 13 is moving.
【００１０】次に、テーブル２から差し込まれた用紙３
が、印字時に印字ヘッド１７等に触れて動くことがない
ようにするため、紙押え機構が設けられている。Next, the sheet 3 inserted from the table 2
However, a paper pressing mechanism is provided to prevent the print head 17 and the like from moving during printing.
【００１１】すなわち、図３に示されるように、ベース
部材８の前側には上記プラテン９とともに紙受け台１９
が形成されている。そして、ベース部材８の上方には紙
押えプレート２０が配置されている。That is, as shown in FIG. 3, on the front side of the base member 8, the platen 9 and the paper tray 19 are provided.
Are formed. A paper pressing plate 20 is arranged above the base member 8.
【００１２】紙押えプレート２０の前部下面に上記紙受
け台１９に対応する合成樹脂製の押圧部２１が（図５
(a) 参照）形成され、左右両側の略中央部はベース部材
８の両側の側壁１０のピン２２に揺動可能に軸支されて
いる。また、紙押えプレート２０はベース部材８の両側
壁１０に設けた引っ張りバネ２３により常時押圧部２１
が紙受け台１９に当接する方向に付勢されている。On the lower surface of the front portion of the paper pressing plate 20, there is provided a synthetic resin pressing portion 21 corresponding to the paper receiving table 19 (see FIG. 5).
(See (a)), and substantially central portions on both left and right sides are pivotally supported by pins 22 on the side walls 10 on both sides of the base member 8 so as to be swingable. Further, the paper pressing plate 20 is constantly pressed by the tension springs 23 provided on the both side walls 10 of the base member 8 and the pressing portion 21.
Is urged in the direction of coming into contact with the paper tray 19.
【００１３】上記紙押えプレート２０の後面上方には左
右方向に紙押えレバー２４が配置されている。紙押えレ
バー２４の一端２４ａはベース部材８の一方の側壁１０
のピン２５に上下方向に回動可能に軸支されている。紙
押えレバー２４の他端には漸次上向きに傾斜する傾斜面
２６が形成されている。さらに、紙押えレバー２４の下
面には、下方に回動時に紙押えプレート２０の後部上面
の中央に係合する係合部２７が形成されている。Above the rear surface of the paper pressing plate 20, a paper pressing lever 24 is arranged in the left-right direction. One end 24 a of the paper pressing lever 24 is provided on one side wall 10 of the base member 8.
Is rotatably supported by the pin 25 in the vertical direction. An inclined surface 26 that gradually inclines upward is formed at the other end of the paper pressing lever 24. Further, on the lower surface of the paper pressing lever 24, there is formed an engaging portion 27 that engages with the center of the rear upper surface of the paper pressing plate 20 when it is rotated downward.
【００１４】次に、上記プリンタキャリッジ１３の後部
はベース部材８の両側壁１０に設けたタイロッド２８に
沿って摺動可能に設けられているとともに、後端部には
係合凸部２９が形成されている。この係合凸部２９はプ
リンタキャリッジ１３が待機位置にあるときに上記紙押
えレバー２４の傾斜面２６に係合して紙押えレバー２４
を上記付勢力に抗して下方に回動させるように形成され
ている。Next, the rear portion of the printer carriage 13 is slidably provided along the tie rods 28 provided on both side walls 10 of the base member 8, and the engaging convex portion 29 is formed at the rear end portion. Has been done. The engaging convex portion 29 engages with the inclined surface 26 of the paper pressing lever 24 when the printer carriage 13 is at the standby position, and engages with the paper pressing lever 24.
Is formed so as to rotate downward against the biasing force.
【００１５】上記構成において、プリンタキャリッジ１
３が待機位置にあるときは、図４(a) 及び図５(a) に示
すように、後端の係合凸部２９が紙押えレバー２４の傾
斜面２６に係合して紙押えレバー２４を下方に回動させ
るので、紙押えレバー２４の中央下面の係合部２７が紙
押えプレート２０の中央上面を押し下げ、紙押えプレー
ト２０の前部を上方に押し上げている。このため、紙押
えプレート２０の前部下面の押圧部２１とベース部材８
の紙受け台１９との間には大きな隙間が形成される。こ
のため、テーブル２から差し込んだ用紙３は紙受け台１
９上を容易に動かして適正位置に配置することができ
る。In the above structure, the printer carriage 1
When 3 is in the standby position, as shown in FIGS. 4 (a) and 5 (a), the engaging convex portion 29 at the rear end engages with the inclined surface 26 of the paper pressing lever 24 to cause the paper pressing lever to move. Since 24 is rotated downward, the engaging portion 27 on the lower center surface of the paper pressing lever 24 pushes down the central upper surface of the paper pressing plate 20 and pushes the front portion of the paper pressing plate 20 upward. Therefore, the pressing portion 21 on the lower surface of the front portion of the paper pressing plate 20 and the base member 8 are
A large gap is formed between the paper receiving tray 19 and the paper receiving tray 19. For this reason, the paper 3 inserted from the table 2 is not supported by the paper receiving tray 1
9 can be easily moved and placed in an appropriate position.
【００１６】その後、印字を開始すると、図２に示すよ
うにモータ１６が作動してラック部材１２に噛合する歯
車を回転駆動し、プリンタキャリッジ１３はメインシャ
フト１８に沿って移動するので、図４(b) 及び図５(b)
に示されるように、その後端の係合凸部２９は横に移動
して紙押えレバー２４の傾斜面２６から外れる。これに
より紙押えレバー２４の下方への押圧力は解除されるか
ら、紙押えプレート２０は引っ張りバネ２３によりピン
２２を中心に揺動してその前部が下方に回動し、紙押え
プレート２０の前部下面の押圧部２１はベース部材８の
紙受け台１９上に圧接され、紙受け台１９上の用紙３は
押圧部２１により強く押圧されて固定される。この押圧
はプリンタキャリッジ１３が一往復して待機位置に復帰
するまで続く。したがって、プリンタキャリッジ１３の
移動中に行なわれる印字作動中に用紙３は動かないよう
に固定されるので、印字が用紙３の所定の位置に確実に
行なわれる。印字終了後にプリンタキャリッジ１３が待
機位置に復帰する直前で再び図４(a) のように、後端の
係合凸部２９が紙押えレバー２４の傾斜面２６に係合し
て紙押えレバー２４を下方に回動させて紙押えプレート
２０を揺動させ、その前部を上方に押し上げるから、図
５(a) のように紙押えプレート２０の前部下面の押圧部
２１と紙受け台１９との間に隙間が開き、被印時材を取
り出すことができるとともに、次の印字が準備される。After that, when printing is started, the motor 16 is operated to rotationally drive the gear meshing with the rack member 12 and the printer carriage 13 moves along the main shaft 18 as shown in FIG. (b) and Figure 5 (b)
As shown in FIG. 5, the engaging convex portion 29 at the rear end moves laterally and is disengaged from the inclined surface 26 of the paper pressing lever 24. As a result, the downward pressing force of the paper pressing lever 24 is released, so that the paper pressing plate 20 is swung about the pin 22 by the tension spring 23 and its front portion is rotated downward, so that the paper pressing plate 20 is rotated. The pressing portion 21 on the lower surface of the front part of the paper is pressed against the paper receiving base 19 of the base member 8, and the paper 3 on the paper receiving base 19 is strongly pressed and fixed by the pressing portion 21. This pressing continues until the printer carriage 13 makes one round trip and returns to the standby position. Therefore, since the paper 3 is fixed so as not to move during the printing operation performed while the printer carriage 13 is moving, the printing is reliably performed at a predetermined position on the paper 3. Immediately before the printer carriage 13 returns to the standby position after printing is completed, as shown in FIG. Is rotated downward to oscillate the paper pressing plate 20 and push up the front portion of the paper pressing plate 20 upward. Therefore, as shown in FIG. 5A, the pressing portion 21 on the lower surface of the front portion of the paper pressing plate 20 and the paper receiving tray 19 are A gap is opened between the marks and, and the material to be printed can be taken out and the next printing is prepared.
【００１７】また、紙押えレバー２４の一端は軸支さ
れ、他端がプリンタキャリッジ１３に押えられることに
よって、紙押えレバー２４の中央の係合部２７が紙押え
プレート２０を押圧する構成であるから、プリンタキャ
リッジ１３によって受けた押圧力の２倍の力を紙押えプ
レート２０に加えることができる。また、この押圧力は
紙押えプレート２０の中央部に加えられるので、紙押え
プレート２０は左右のバランスがよく揺動する。Further, one end of the paper pressing lever 24 is pivotally supported, and the other end is pressed by the printer carriage 13, so that the engaging portion 27 at the center of the paper pressing lever 24 presses the paper pressing plate 20. Therefore, it is possible to apply a force twice as much as the pressing force received by the printer carriage 13 to the paper pressing plate 20. Further, since this pressing force is applied to the central portion of the paper pressing plate 20, the paper pressing plate 20 swings well in left and right balance.
【００１８】なお、紙押えレバー２４は上述の構成に限
定されない。例えば、紙押えプレート２０の中央部の後
方にピン（図示せず）を突出させる一方、紙押えレバー
２４に上記ピンに係合する係合溝（係合部）を形成する
ことにより、紙押えレバー２４の上下動に応じて紙押え
プレート２０を揺動させるようにしてもよい。The paper pressing lever 24 is not limited to the above-mentioned structure. For example, a pin (not shown) is projected to the rear of the central portion of the paper pressing plate 20, and an engaging groove (engaging portion) that engages with the pin is formed in the paper pressing lever 24, so that the paper pressing plate is pressed. The paper pressing plate 20 may be swung according to the vertical movement of the lever 24.
【図１】本発明に係る印字装置を含むチェックライタの
斜視図FIG. 1 is a perspective view of a check writer including a printing device according to the present invention.
【図２】印字装置の概要を示す斜視図FIG. 2 is a perspective view showing an outline of a printing device.
【図３】紙押え機構の分解斜視図FIG. 3 is an exploded perspective view of a paper pressing mechanism.
【図４】(a) (b) はそれぞれ背面側からみた紙押え機構
の作動態様図4A and 4B are operation mode diagrams of the paper pressing mechanism as viewed from the back side.
【図５】(a) (b) はそれぞれ側面側からみた紙押え機構
の作動態様図5 (a) and (b) are operation mode diagrams of the paper pressing mechanism as viewed from the side.
３ 用紙 ８ ベース部材 ９ プラテン １０ 側壁 １３ プリンタキャリッジ １７ 印字ヘッド １９ 紙受け台 ２０ 紙押えプレート ２１ 押圧部 ２４ 紙押えレバー ２６ 傾斜面 ２７ 係合部 ２９ 係合凸部 3 Paper 8 Base Member 9 Platen 10 Side Wall 13 Printer Carriage 17 Print Head 19 Paper Receiving Stand 20 Paper Pressing Plate 21 Pressing Part 24 Paper Pressing Lever 26 Sloping Surface 27 Engaging Part 29 Engaging Convex Part
Claims (1)
ラテンの長手方向に沿って印字ヘッドを有するプリンタ
キャリッジを移動させ、上記プラテン上に配置された用
紙に印字する印字装置において、 上記ベース部材の前側には上記プラテンとともに紙受け
台を形成し、ベース部材の上方には紙押えプレートを配
置し、その左右両側の略中央部を上記ベース部材の両側
の側壁に揺動可能に軸支し、上記紙押えプレートの前部
下面に上記紙受け台に対応する押圧部を形成し、紙押え
プレートを上記押圧部が紙受け台に当接するように付勢
し、 上記紙押えプレートの後部には左右方向に紙押えレバー
を配置し、上記ベース部材の一方の側壁には、上記紙押
えレバーの一端を上下方向に回動可能に軸支し、紙押え
レバーの他端には漸次上向きに傾斜する傾斜面を形成す
るとともに、 上記プリンタキャリッジの後部には、待機位置にあると
きに上記紙押えレバーの傾斜面に係合して紙押えレバー
を上記付勢力に抗して下方に回動させる係合凸部を形成
し、 上記紙押えレバーの略中央部の下面には、下方に回動時
に上記紙押えプレートの後部の中央に係合して押圧する
係合部を形成したことを特徴とする印字装置における紙
押え機構。1. A printer for moving a printer carriage having a print head along the longitudinal direction of an elongated plate-shaped platen provided on a base member to print on a sheet of paper placed on the platen. A paper tray is formed on the front side of the member together with the platen, and a paper pressing plate is arranged above the base member. Then, a pressing portion corresponding to the paper receiving tray is formed on the lower surface of the front portion of the paper pressing plate, and the paper pressing plate is urged so that the pressing portion contacts the paper receiving tray. Has a paper pressing lever arranged in the left-right direction, one end of the paper pressing lever is pivotally supported on one side wall of the base member so as to be vertically rotatable, and the other end of the paper pressing lever is gradually turned upward. Inclined to The inclined surface of the printer carriage is engaged with the inclined surface of the paper pressing lever at the rear position of the printer carriage to rotate the paper pressing lever downward against the biasing force. An engaging convex portion is formed, and an engaging portion that engages with and presses the center of the rear portion of the paper pressing plate when rotating downward is formed on the lower surface of the substantially central portion of the paper pressing lever. Paper holding mechanism in the printing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09350396A JP3257395B2 (en) | 1996-03-22 | 1996-03-22 | Paper press mechanism of printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09350396A JP3257395B2 (en) | 1996-03-22 | 1996-03-22 | Paper press mechanism of printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09255191A true JPH09255191A (en) | 1997-09-30 |
| JP3257395B2 JP3257395B2 (en) | 2002-02-18 |
Family
ID=14084159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09350396A Expired - Lifetime JP3257395B2 (en) | 1996-03-22 | 1996-03-22 | Paper press mechanism of printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3257395B2 (en) |
-
1996
- 1996-03-22 JP JP09350396A patent/JP3257395B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3257395B2 (en) | 2002-02-18 |
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