JPS5938117B2 - printer paper feeder - Google Patents
printer paper feederInfo
- Publication number
- JPS5938117B2 JPS5938117B2 JP11444576A JP11444576A JPS5938117B2 JP S5938117 B2 JPS5938117 B2 JP S5938117B2 JP 11444576 A JP11444576 A JP 11444576A JP 11444576 A JP11444576 A JP 11444576A JP S5938117 B2 JPS5938117 B2 JP S5938117B2
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- guide plate
- plate
- lower guide
- paper
- 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
Links
Landscapes
- Handling Of Cut Paper (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
Description
【発明の詳細な説明】
本発明は例えば記録式卓上計算機などにおいてプリンタ
部の記録紙送り用として用いられる紙送り装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device used for feeding recording paper in a printer unit in, for example, a recording desk calculator.
従来、記録式卓上計算機などのプリンタ部に設けられる
紙送り装置は、例えば第１図および第２図で示す構成を
なしている。2. Description of the Related Art Conventionally, a paper feeding device provided in a printer unit of a recording desk calculator or the like has a configuration shown in FIGS. 1 and 2, for example.
すなわち、図中１は、記録紙に移行力を与える送りロー
ラで、図示しない駆動機構により回転駆動されており、
該送りローラ１に前記記録紙を弾性的に押圧するテンシ
ョンローラ２は、下部案内板３に回動自在に軸支されて
いる。前記下部案内板３の上部には所定間隙を存して上
部案内板４が重合して設置されており、下部と上部の各
案内板３、４の内面には夫々長手方向に沿う複数個のリ
ブ５、６が対向して形成してある。記録紙□は送りロー
ラ１とテンションローラ２とで移行力を与えられ、下部
案内板３のリブ５と上部案内板４のリブ６の間隙を通つ
て印字ドラム８及び印字ハンマ９等で構成される印字部
へ案内されて送られ、印字が行なわれる。従って、前記
リブ５とリブ６との間隙は、送りに伴う記録紙７の長手
方向のたわみ及び印字動作時の印字ハンマ９による記録
紙７の振動を防止する為に記録紙□の厚みと同程度に設
定することが必要である。しかしながら、記録紙７は極
めて薄い為加工上および組立上両案内板３、４のリブ５
、６の間を適切な小間隙に調節することが非常に困難で
ある。従つて、記録紙７が両案内板３、４内で安定して
保持されず、記録紙１が移行する過程で紙づまりを生じ
たり、たわんで印字ずれを生じていた。本発明は前記事
情に基づいてなされたもので、簡単な構成と作業により
記録紙を案内板へ安定して押えることができ、故に記録
紙を円滑に移行させるとともに印字品位を向上できるプ
リンタの紙送り装置を提供するものである。That is, 1 in the figure is a feed roller that applies a transfer force to the recording paper, and is rotationally driven by a drive mechanism (not shown).
A tension roller 2 that elastically presses the recording paper against the feed roller 1 is rotatably supported by a lower guide plate 3. An upper guide plate 4 is installed on top of the lower guide plate 3 with a predetermined gap therebetween, and the inner surfaces of the lower and upper guide plates 3 and 4 each have a plurality of grooves along the longitudinal direction. Ribs 5 and 6 are formed to face each other. The recording paper □ is given a transfer force by the feed roller 1 and the tension roller 2, and passes through the gap between the rib 5 of the lower guide plate 3 and the rib 6 of the upper guide plate 4, and is then transferred to the print drum 8, the print hammer 9, etc. The paper is guided and sent to the printing section where printing is performed. Therefore, the gap between the ribs 5 and 6 is set to be equal to the thickness of the recording paper □ in order to prevent the recording paper 7 from bending in the longitudinal direction due to feeding and to prevent the recording paper 7 from vibrating due to the printing hammer 9 during the printing operation. It is necessary to set it to a certain degree. However, since the recording paper 7 is extremely thin, the ribs on both the guide plates 3 and 4 are
, 6 is very difficult to adjust to an appropriate small gap. Therefore, the recording paper 7 is not stably held within the guide plates 3 and 4, and as the recording paper 1 moves, paper jams may occur, or the recording paper 1 may be bent, resulting in printing misalignment. The present invention has been made based on the above-mentioned circumstances, and is a printer paper that can stably press recording paper against a guide plate with a simple structure and operation, and can therefore smoothly transfer the recording paper and improve printing quality. It provides a feeding device.
以下本発明を第３図乃至第６図で示す一実施例について
説明する。An embodiment of the present invention shown in FIGS. 3 to 6 will be described below.
図中１１は例えば合成樹脂からなる下部案内板で、これ
は記録紙の送入端部（図示左端部）と送出端部（右端部
）が円弧を描きながら上方へ立上つており、送入端部に
は送入案内辺１２が形成してあるとともに送出端両側に
は送出案内辺１３、１３が形成してある。In the figure, reference numeral 11 denotes a lower guide plate made of, for example, synthetic resin, on which the feeding end (left end in the figure) and the feeding end (right end) of the recording paper rise upward while drawing a circular arc. A feed guide side 12 is formed at the end, and feed guide sides 13 are formed on both sides of the feed end.
下部案内板１１の送入端部側中央にはローラ用開口１４
が形成され、テンシヨンローラ１５が挿着されている。
該テンシヨンローラ１５は、前記下部案内板１１の下面
に固定された弾性片１６を介してローラ軸１７を保持さ
せており、回動自在となつている。更に、下部案内板１
１にはこの開口１４から送出端に到る上面中央部に幅方
向に間隔を存して例えば一対のリブ１８，１８が形成し
てある。図中１９は例えば合成樹脂で形成された上部案
内板であり、この上部案内板１９は下部案内板１１の所
定間隔を存した上方に設けてある。この上部案内板１９
は下部案内板１１と同様に送入端部と送出端部とが円弧
を描いて立上つている。この送入端部と送出端部の夫々
中央部には切欠き部２０，２１が形成されており、前記
送入端部側切欠き部２０には、ローラ軸２２を介して図
示しないシヤーシに回動自在に軸支された送りローラ２
３が挿着されている。この送りローラ２３は図示しない
回転駆動機構により回転され、且つ送りローラ２３と前
記テンシヨンローラ１５は上部案内板１９と下部案内板
１１の間で弾圧接触して、両ローラ２３，１５が一諸に
回転し後述するように記録紙を挟んで移行力を与える。
また、前記上部案内板１９の送出端側の切欠き部２１に
は図示しないシヤーシに軸支された印字ドラム２４が挿
着してあり、これは外周面に印字用の字印が並べて形成
されている。なお、印字ドラム２４に対応して印字ハン
マ２５が設けられており、該印字ハンマ２５は記録紙を
介して字印を打刻して印字を行なう。さらに、図中２６
は例えばセルロイド等の合成樹脂からなる弾性押え板で
、これは上部案内板１９と下部案内板１１との間に設け
られている。A roller opening 14 is provided at the center of the lower guide plate 11 on the feeding end side.
is formed, and a tension roller 15 is inserted therein.
The tension roller 15 holds a roller shaft 17 via an elastic piece 16 fixed to the lower surface of the lower guide plate 11, and is rotatable. Furthermore, the lower guide plate 1
1 has, for example, a pair of ribs 18, 18 formed at the center of the upper surface extending from the opening 14 to the delivery end, spaced apart in the width direction. In the figure, reference numeral 19 denotes an upper guide plate made of synthetic resin, for example, and the upper guide plate 19 is provided above the lower guide plate 11 at a predetermined distance. This upper guide plate 19
Like the lower guide plate 11, the inlet end and the outlet end rise in an arc. Notches 20 and 21 are formed in the center of the feeding end and the feeding end, respectively, and the feeding end notch 20 is connected to a chassis (not shown) via a roller shaft 22. Rotatably supported feed roller 2
3 is inserted. This feed roller 23 is rotated by a rotational drive mechanism (not shown), and the feed roller 23 and the tension roller 15 are in elastic contact between the upper guide plate 19 and the lower guide plate 11, so that both rollers 23, 15 are aligned. The recording paper is rotated to sandwich the recording paper and apply a transfer force as described later.
Further, a printing drum 24 is inserted into the notch 21 on the sending end side of the upper guide plate 19, and is rotatably supported by a chassis (not shown). ing. A printing hammer 25 is provided corresponding to the printing drum 24, and the printing hammer 25 performs printing by stamping characters on the recording paper. Furthermore, 26 in the figure
is an elastic holding plate made of synthetic resin such as celluloid, and is provided between the upper guide plate 19 and the lower guide plate 11.
この弾性押え板２６の送入端部は円弧を描きながら上方
へ立上り、その上端を下方へ折曲して係合部２７を形成
し、この係合部２７は上部案内板１１の送入端部上端に
上方から差込んで係合する。弾性押え板２６の中間部か
ら送出端部に至る両端部には夫々弾性を有する短冊伏の
押え片２８，２８が形成されており、この押え片２８，
２８はその弾性により下部案内板１１の中間部から送出
端部の上面両側に重合して接触している。このため、弾
性押え板２６は上部案内板１９に取付けられて、前記テ
ンシヨンローラ１５とリブ１８，１８を挟んで下部案内
板１１の上面両側に弾性的に重合接触し、且一つ下部案
内板１１上面に沿つて移行する記録紙を下部案内板１１
に押付けて保持する。なお、押え片２８，２８の弾性押
圧力は記録紙をその移行に支障きたさない範囲で押付け
る程の強さとする。このように構成したプリンタの紙送
り装置において、記録紙２９は下部案内板１１の送入案
内辺１２から弾性押え板２６と下部案内板１１との間に
送入さ法送りローラ２３とテンシヨンンローラ１５との
間を通過しながら送りローラ２３の回転により前方への
移行力が与えられる。The feeding end of the elastic press plate 26 rises upward while drawing a circular arc, and its upper end is bent downward to form an engaging portion 27, which is the feeding end of the upper guide plate 11. Insert and engage the upper end of the section from above. Elastic presser pieces 28, 28 are formed at both ends of the elastic presser plate 26 from the intermediate portion to the delivery end.
28 overlaps and contacts both sides of the upper surface of the delivery end from the middle part of the lower guide plate 11 due to its elasticity. For this purpose, the elastic presser plate 26 is attached to the upper guide plate 19, and elastically overlaps and contacts both sides of the upper surface of the lower guide plate 11 with the tension roller 15 and the ribs 18, 18 in between. The recording paper that moves along the top surface of the plate 11 is moved to the lower guide plate 11.
Press and hold. The elastic pressing force of the holding pieces 28, 28 is set to be strong enough to press the recording paper within a range that does not interfere with its transfer. In the paper feeding device of the printer configured as described above, the recording paper 29 is fed from the feed guide side 12 of the lower guide plate 11 between the elastic presser plate 26 and the lower guide plate 11, and is fed between the elastic presser plate 26 and the lower guide plate 11, and is moved between the feeding roller 23 and the tensioner. A forward shifting force is applied by the rotation of the feed roller 23 while passing between the feeding roller 15 and the feeding roller 15 .
そこで、記録紙２９は弾性押え板２６と下部案内板１１
との間を中間部から送出端部へ案内されながら移行し印
字ドラム２４に対応した個所へ送出される。この場合、
記録紙２９の両端部は弾性押え板２６の押え片２８，２
８により下部案内板１１上面に弾性的に押付けられ、一
方中央部はリブ１８，１８により持上げられている。こ
のため記録紙２９は下部案内板１１に押圧保持され、且
つ幅方向への張力を与えられる。故に記録紙２９を弾性
押え板２６と下部案内板１１とで移送方向全体にわたり
弾性保持して移行させることができ、記録紙２９の移送
方向にたわみが生ぜず紙づまりが減少し、且つ印字動作
時に印字ハンマ２５が印字ドラム２４を押打しても記録
紙２９は振動することがなく静止したま＼なので明瞭に
印字が行なえる。さらに記録紙２９に幅方向にたわませ
て張力を与えているので、より一層移送方向のたわみを
確実に抑制できるとともに印字動作時の振動を防止でき
る。しかも、弾性押え板２６で記録紙２９を上方から押
えているので、従来のように記録紙２９を移送方向へ逃
がすために送りローラ２３近傍に空間を設ける必要がな
く不要な空間を除去できる。従つて、印字を行なうため
の記録紙２９を安定保持して最も少ない動きで効果的且
つ円滑に移行させることができ、良好な印字を行ない印
字品質を高めることができる。さらに、下部案内板１１
に一対のリブ１８，１８を設け、これに対応させて弾性
押え板２６を設けるだけの簡単な構成であり、弾性押え
板２６はその弾性により自動的に記録紙２９を押付ける
から従来のように上部および下部案内板１９，１１間の
間隙を調節する面倒な作業も必要としない。なお、前述
した実施例は、下部案内板１１の上面中央部に一対のリ
ブ１８，１８を設け、該リブ１８，１８の外側に位置す
る記録紙２９の両側部のみを弾性押え板２６で前記下部
案内板１１に押圧する構成であるが、本発明はこの実施
例のみに限定されるものではない。Therefore, the recording paper 29 is attached to the elastic presser plate 26 and the lower guide plate 11.
The paper is guided between the intermediate part and the delivery end, and is delivered to a location corresponding to the printing drum 24. in this case,
Both ends of the recording paper 29 are held by the holding pieces 28, 2 of the elastic holding plate 26.
8 elastically presses against the upper surface of the lower guide plate 11, while the central portion is lifted by ribs 18, 18. Therefore, the recording paper 29 is held under pressure by the lower guide plate 11 and is given tension in the width direction. Therefore, the recording paper 29 can be moved while being elastically held in the entire transport direction by the elastic presser plate 26 and the lower guide plate 11, and the recording paper 29 does not bend in the transport direction, reducing paper jams and reducing paper jams during printing operations. Even when the printing hammer 25 presses the printing drum 24, the recording paper 29 does not vibrate and remains stationary, so that clear printing can be performed. Furthermore, since the recording paper 29 is deflected in the width direction and tension is applied, deflection in the transport direction can be suppressed even more reliably, and vibrations during printing operations can be prevented. Moreover, since the recording paper 29 is pressed from above by the elastic presser plate 26, there is no need to provide a space near the feed roller 23 to release the recording paper 29 in the transport direction as in the conventional case, and unnecessary space can be removed. Therefore, it is possible to stably hold the recording paper 29 for printing and transfer it effectively and smoothly with the least amount of movement, and it is possible to perform good printing and improve print quality. Furthermore, the lower guide plate 11
It has a simple structure by providing a pair of ribs 18, 18 on the holder and an elastic presser plate 26 in correspondence with the ribs 18, 18.The elastic presser plate 26 automatically presses the recording paper 29 due to its elasticity, so it is not like the conventional method. There is also no need for the troublesome work of adjusting the gap between the upper and lower guide plates 19 and 11. In the embodiment described above, a pair of ribs 18, 18 are provided at the center of the upper surface of the lower guide plate 11, and only the both sides of the recording paper 29 located outside the ribs 18, 18 are held by the elastic press plate 26. Although this embodiment is configured to press against the lower guide plate 11, the present invention is not limited to this embodiment.
即ち、下部案内板１１に設けるリブの数及びその形状は
任意に設定出来るものである。また、下部案内板１１の
上面に記録紙２９の滑りを良くする為の合成樹脂等より
なるシートを設けても良く、この場合リブを下部案内板
１１に設けるかシートに設けるかは任意である。一方、
弾性押え板に於ては、例えばテンシヨンローラ１５に対
応した部分を除いて下部案内板１１の全面を覆う構成に
しても良く、また金属或いはグラスフアイバ等で造つて
も良い。勿論、その取付け構造も係止固定でなく接着等
であつても良く、また取付け位置も送りローラ２３より
印字部側であつても良い。更に、弾性押え板を下部案内
板１１に接着し、記録紙２９を上部案内板１９に弾性的
に押圧保持する構成にしても良い。さらに、本発明の紙
送り装置は記録式卓上計算機を含んで記録機能を有する
機器に広く適用できる。このように本発明は前述した実
施例に限定されず、その要旨を変更しない範囲で種々変
形して実施できる。本発明の紙送り装置は以上説明した
ように、案内板の記録紙案内面の中央部に記録紙の移行
方向に沿つて延びるリブを設けると共に、弾性押え板で
記録紙の前記リブより外側に食み出す両端部を前記案内
板の記録紙案内面に押圧するようにしたので、記録紙に
幅方向のたわみと共に張力を与えることができ、これに
よつて記録紙を安定保持して円滑に移行させることがで
きるとともに印字品位を向上させることができ、しかも
構造および作業を簡素化できる。That is, the number and shape of ribs provided on the lower guide plate 11 can be set arbitrarily. Further, a sheet made of synthetic resin or the like may be provided on the upper surface of the lower guide plate 11 to improve the sliding of the recording paper 29, and in this case, it is optional whether the ribs are provided on the lower guide plate 11 or on the sheet. . on the other hand,
The elastic presser plate may be configured to cover the entire surface of the lower guide plate 11 except for the portion corresponding to the tension roller 15, or may be made of metal, glass fiber, or the like. Of course, the mounting structure may also be adhesive instead of locking and fixed, and the mounting position may also be closer to the printing section than the feed roller 23. Furthermore, an elastic presser plate may be adhered to the lower guide plate 11 to elastically press and hold the recording paper 29 against the upper guide plate 19. Furthermore, the paper feeding device of the present invention can be widely applied to devices having a recording function, including recording desk calculators. As described above, the present invention is not limited to the embodiments described above, and can be implemented with various modifications without changing the gist thereof. As explained above, the paper feeding device of the present invention is provided with a rib extending along the direction of movement of the recording paper at the center of the recording paper guide surface of the guide plate, and an elastic presser plate is used to move the recording paper outward from the rib. Since both protruding ends are pressed against the recording paper guide surface of the guide plate, it is possible to apply tension to the recording paper along with deflection in the width direction, thereby stably holding the recording paper and smoothing it. The printing quality can be improved, and the structure and work can be simplified.
第１図および第２図は夫々従来のプリンタの紙送り装置
を示す縦断面図および横断面図、第３図は本発明のプリ
ンタの紙送り装置の一実施例を示す分解斜視図、第４図
は第３図の組立伏態における縦断面図、第５図は記録紙
の保持状態を示すＡ一Ｘ横断面図、第６図は記録紙が送
りローラとテンシヨンローラを通過している伏態を示す
横断面図である。
１１・・・・・・下部案内板、１５・・・・・・テンシ
ヨンローラ、１９・・・・・・上部案内板、２３・・・
・・・送りローラ、２４・・・・・・印字ドラム、２５
・・・・・・印字ハンマ、２６・・・・・・弾性押え板
、２９・・・・・・記録紙。1 and 2 are longitudinal and transverse sectional views, respectively, showing a paper feeding device of a conventional printer. FIG. 3 is an exploded perspective view showing an embodiment of the paper feeding device of a printer according to the present invention. The figure is a vertical cross-sectional view of the assembled state shown in Figure 3, Figure 5 is an A-X cross-sectional view showing the state in which the recording paper is held, and Figure 6 is a diagram showing the recording paper passing through the feed roller and tension roller. FIG. 3 is a cross-sectional view showing a lying position. 11... Lower guide plate, 15... Tension roller, 19... Upper guide plate, 23...
...Feed roller, 24...Print drum, 25
...Printing hammer, 26...Elastic presser plate, 29...Recording paper.
Claims (1)
、該送出部から印字部にかけて設けられ送出された前記
記録紙を印字部へ案内する案内板と、該案内板に重合し
て設けられこの案内板に沿つて移行する前記記録紙を前
記案内板の記録紙案内面に弾性力で押える弾性押え板と
を具備したプリンタの紙送り装置に於て、前記案内板の
記録紙案内面の中央部に前記記録紙の移行方向に延びる
リブを設け、前記弾性押え板で前記記録紙の前記リブよ
り外側に食み出す両側部を前記案内板の記録紙案内面に
押圧することを特徴とするプリンタの紙送り装置。1. A delivery section that sends out the recording paper by the rotational drive of a roller, a guide plate provided from the delivery section to the printing section to guide the delivered recording paper to the printing section, and a guide plate provided overlapping the guide plate and provided with the guide plate. In a printer paper feeding device comprising an elastic presser plate that elastically presses the recording paper moving along the guide plate against the recording paper guide surface of the guide plate, the center of the recording paper guide surface of the guide plate is provided. A rib extending in the direction of movement of the recording paper is provided in the recording paper, and the elastic pressing plate presses both sides of the recording paper that protrude outward from the rib against the recording paper guide surface of the guide plate. Printer's paper feed device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11444576A JPS5938117B2 (en) | 1976-09-24 | 1976-09-24 | printer paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11444576A JPS5938117B2 (en) | 1976-09-24 | 1976-09-24 | printer paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5340315A JPS5340315A (en) | 1978-04-12 |
| JPS5938117B2 true JPS5938117B2 (en) | 1984-09-13 |
Family
ID=14637903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11444576A Expired JPS5938117B2 (en) | 1976-09-24 | 1976-09-24 | printer paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5938117B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0191625U (en) * | 1987-12-10 | 1989-06-15 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5853649U (en) * | 1981-10-08 | 1983-04-12 | アルプス電気株式会社 | Printing device paper guide mechanism |
| JPS58110453U (en) * | 1982-01-22 | 1983-07-27 | 株式会社田村電機製作所 | Paper presser feeding structure in paper feeding device |
| JPS58165615U (en) * | 1982-04-30 | 1983-11-04 | 大倉電気株式会社 | Soundproof recording paper advancing device |
| JPS58185456U (en) * | 1982-06-03 | 1983-12-09 | 株式会社ピーエフユー | Printing device paper guide |
| JPS59214306A (en) * | 1983-05-19 | 1984-12-04 | Fujitsu Ltd | Oscillator |
| JPS6040273A (en) * | 1984-07-05 | 1985-03-02 | Matsushita Electric Ind Co Ltd | Paper feeder for printer |
| JPH0620616Y2 (en) * | 1984-07-31 | 1994-06-01 | ニスカ株式会社 | Paper transport device |
-
1976
- 1976-09-24 JP JP11444576A patent/JPS5938117B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0191625U (en) * | 1987-12-10 | 1989-06-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5340315A (en) | 1978-04-12 |
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