JPS6294365A - Paper feeder - Google Patents
Paper feederInfo
- Publication number
- JPS6294365A JPS6294365A JP23480385A JP23480385A JPS6294365A JP S6294365 A JPS6294365 A JP S6294365A JP 23480385 A JP23480385 A JP 23480385A JP 23480385 A JP23480385 A JP 23480385A JP S6294365 A JPS6294365 A JP S6294365A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- platen
- paper
- feeding
- pin
- 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.)
- Pending
Links
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
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/16—Means for tensioning or winding the web
Landscapes
- Handling Of Sheets (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、印字機に使用する用紙送り装置に関する。[Detailed description of the invention] Industrial applications The present invention relates to a paper feeding device used in a printing machine.
従来の技術
第６図に示すように、プラテン１と平行なキャリアシャ
ツＩ−２，３に沿わせて印字ヘッド４が搭載されたキャ
リア５を移動させて印字し、用紙をフリクション送りす
る時は、プラテン１にピンチローラ６を接触させ、モー
タに直結されたピニオン２８により駆動ギヤ３４を駆動
し、この回転をギヤ３５．３３を介してプラテン１に伝
達し、用紙３７をピンフィード機構１１により送る時は
、駆動ギヤ３４の回転をギヤ３６とピンフィードギヤ２
１と駆動軸９とを介してピンベル１−１３に伝達するよ
うにした用紙送り装置が存する。BACKGROUND ART As shown in FIG. 6, when printing is performed by moving the carrier 5 on which the print head 4 is mounted along the carrier shirts I-2 and 3 parallel to the platen 1, and the paper is friction fed. , the pinch roller 6 is brought into contact with the platen 1, the drive gear 34 is driven by the pinion 28 directly connected to the motor, this rotation is transmitted to the platen 1 via the gear 35, 33, and the paper 37 is fed by the pin feed mechanism 11. When feeding, the rotation of the drive gear 34 is controlled by the gear 36 and the pin feed gear 2.
There is a paper feeding device which transmits a signal to a pin bell 1-13 via a drive shaft 9 and a pin bell 1-13.
発明が解決しようとする問題点
しかし、ビンベル１〜１３は用紙３７の両側に形成した
送り孔に係合して用紙をプラテン１に強制的に送り込む
が、プラテン１の外周においては用紙３７は用紙通路の
抵抗を受けてプラテン１に対してスリップする。すなわ
ち、用紙３７の送り量がピンフィード機構１１よりプラ
テン１の方が少なくなる原因がある。このため、プラテ
ン１の外周では用紙３７が弛み、腰の弱い用紙３７では
この弛み量が次第に増大しジャムが発生する。Problems to be Solved by the Invention However, the bin bells 1 to 13 engage with feed holes formed on both sides of the paper 37 to forcibly feed the paper to the platen 1, but at the outer periphery of the platen 1, the paper 37 It slips against the platen 1 due to the resistance of the passage. That is, there is a reason why the amount of paper 37 fed is smaller in the platen 1 than in the pin feed mechanism 11. For this reason, the paper 37 becomes loose around the outer periphery of the platen 1, and in the case of paper 37 that is weak, this amount of slack gradually increases, causing a jam.
この対策としてピンベル１−１３の周速度よりプラテン
１の周速度を僅か早くする手段が採られているが、ピン
フィード機構１１を用いずにプラテン１とピンチローラ
６とにより用紙を送る場合は紙送り量がピンフィード機
構１１の紙送り量よりも多くなり、印字の行間隔に狂い
が生じる問題がある。As a countermeasure against this, a method is adopted to make the peripheral speed of the platen 1 slightly faster than the peripheral speed of the pin bells 1-13, but when the paper is fed by the platen 1 and the pinch roller 6 without using the pin feed mechanism 11, There is a problem in that the feeding amount becomes larger than the paper feeding amount of the pin feed mechanism 11, and the printing line spacing becomes inconsistent.
この発明はこのような点に鑑みなされたもので、フリク
ション送りによる紙送り量とピンフィード機構による紙
送り景とを一致させ、しかもジャ１１の発生を防止しう
る用紙送り装置を提供することを目的とする。The present invention has been made in view of the above points, and an object of the present invention is to provide a paper feeding device that can match the paper feeding amount by friction feeding and the paper feeding pattern by a pin feed mechanism, and can prevent the occurrence of jam 11. shall be.
問題点を解決するための手段
この発明は、モータに駆動される駆動ギヤ１９を設け、
この駆動ギヤ１９に噛合するギヤを含む複数のギヤ２６
．２７によりプラテン伝動機構２５を形成し、駆動ギヤ
１９に噛合するギヤ２０とピンフィード機構１１の回転
体１３に連結されたピンフィードギヤ２１とを含む複数
のギヤ２０゜２１によりピンフィード伝動機構２２を形
成し、変速ギヤ２６．２７を駆動ギヤ１９からプラテン
１に至る動力伝達経路中に設ける。Means for Solving the Problems This invention provides a drive gear 19 driven by a motor,
A plurality of gears 26 including a gear that meshes with this drive gear 19
．． 27 forms a platen transmission mechanism 25, and a plurality of gears 20° 21 including a gear 20 meshing with the drive gear 19 and a pin feed gear 21 connected to the rotating body 13 of the pin feed mechanism 11 form a pin feed transmission mechanism 22. , and transmission gears 26 and 27 are provided in the power transmission path from the drive gear 19 to the platen 1.
作用
したがって、ピンフィード機構１１により用紙３７を送
る時は、ピンフィード機構［１の回転体１３の周速度よ
りプラテン１の周速度を早くしてプラテン１の外周にお
ける用紙３７の弛みを防止し、他の用紙をフリクション
送りする時は、プラテン１の周速度を正規の周速度に戻
す。Therefore, when the paper 37 is fed by the pin feed mechanism 11, the circumferential speed of the platen 1 is made faster than the circumferential speed of the rotating body 13 of the pin feed mechanism [1] to prevent the paper 37 from loosening at the outer periphery of the platen 1. When friction feeding other sheets, the peripheral speed of the platen 1 is returned to the normal peripheral speed.
実施例
この発明の一実施例を第１図ないし第５図に基づいて説
明する。第６図において説明した従来例と同一部分は同
一符号を用い説明も省略する。−側しか図示しないが、
相対向するフレーｂ ８にプラテン１と駆動軸９と案内
軸１０とが架設され、さらに、プラテン１に接離するペ
ーパーペイルローラ７を支承するアーＡ （図示せず）
が回動自在に保持されている。駆動軸９と案内軸１０と
にはピンフィード機構１１が保持されている。このピン
フィード機構１１は、第３図に示すように、駆動軸９と
案内軸１０とに摺動臼゛在に保持された左右一対のホル
ダ１２と、これらのホルダ１２に回転自在に保持された
回転体であるピンベルト１３と、ホルダ１２に保持され
て駆動軸９の回転をピンベル１〜１３に伝達するホイー
ル（図示せず）と、ホルダ１２に回動自在に保持された
紙押え１４とよりなる。Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 5. Components that are the same as those of the conventional example explained in FIG. 6 are designated by the same reference numerals, and explanations thereof will be omitted. Although only the - side is shown,
A platen 1, a drive shaft 9, and a guide shaft 10 are installed on opposing frames B8, and an arm A (not shown) that supports a paper pail roller 7 that approaches and separates from the platen 1.
is held rotatably. A pin feed mechanism 11 is held on the drive shaft 9 and the guide shaft 10. As shown in FIG. 3, this pin feed mechanism 11 includes a pair of left and right holders 12 which are slidably held on a drive shaft 9 and a guide shaft 10, and which are rotatably held by these holders 12. A pin belt 13 which is a rotating body, a wheel (not shown) held by the holder 12 and transmitting the rotation of the drive shaft 9 to the pin bells 1 to 13, and a paper presser 14 rotatably held by the holder 12. It becomes more.
ついで、左側のフレーｔｚ ８には支軸１５．１６が立
設され、一方の支軸１５には大径のギヤ１７と小径のギ
ヤ１８とを有する駆動ギヤ１９が軸方向に摺動自在及び
回転自在に嵌合されている。他方の支軸１６には常時駆
動ギヤ１９の大径のギヤ１７に噛合するギヤ２０が回転
自在に嵌合され、駆動軸９にはギヤ２０に噛合するギヤ
２１が固定＝４−
され、これらのギヤ２０．２１によりピンフィード伝動
機構２２が形成されている。また、プラテン軸２３の右
端には二段ギヤ２４が固定されてプラテン伝動機構２５
が形成されている。この二段ギヤ２４は駆動ギヤ１９の
小径のギヤ１８に選択的に噛合される二つの変速ギヤ２
６．２７を有している。これらの変速ギヤ２６．２７は
外径や歯形等が同じであるが、一方の変速ギヤ２６は転
移させることにより歯数が他方の変速ギヤ２７の歯数よ
り−っ少ない。ギヤ１８は変速ギヤの−っである。モー
タ（図示せず）に直結されたピニオン２８は常時駆動ギ
ヤ１９のギヤ１７に噛合されている。Next, support shafts 15 and 16 are erected on the left frame tz 8, and on one of the support shafts 15, a drive gear 19 having a large diameter gear 17 and a small diameter gear 18 is slidable in the axial direction. They are rotatably fitted. A gear 20 that meshes with a large-diameter gear 17 of a constant drive gear 19 is rotatably fitted to the other support shaft 16, and a gear 21 that meshes with the gear 20 is fixed to the drive shaft 9. A pin feed transmission mechanism 22 is formed by gears 20 and 21. Further, a two-stage gear 24 is fixed to the right end of the platen shaft 23, and a platen transmission mechanism 25
is formed. This two-stage gear 24 includes two transmission gears 2 that are selectively meshed with the small diameter gear 18 of the drive gear 19.
6.27. These transmission gears 26 and 27 have the same outer diameter, tooth profile, etc., but one transmission gear 26 has fewer teeth than the other transmission gear 27 due to being transferred. The gear 18 is a transmission gear. A pinion 28 directly connected to a motor (not shown) is constantly meshed with the gear 17 of the drive gear 19.
第４図、第５図に示す２９はシフｌ−レバーで、このシ
フトレバ−２９は変速ギヤ１７の内面をフレーム８側に
押圧する抑圧面３０と、変速ギヤ１８の内面をフレー７
％ ８から離反する方向に押圧する抑圧面３１と、これ
らの抑圧面３０．３１を結ぶ斜面３２とを有し、軸３３
によりフレー７％ ８に回動自在に保持されている。抑
圧面３ｏはフレーｚｚ ８に近い垂直面内で回動し、押
圧面３１はフレーｚｌから離反する垂直面内で回動する
ように段差が付けられている。また、抑圧面３０．３１
と斜面３２とは軸３３を中心とする半径上に位置する。Reference numeral 29 shown in FIGS. 4 and 5 is a shift lever, and this shift lever 29 has a suppression surface 30 that presses the inner surface of the transmission gear 17 toward the frame 8, and a suppression surface 30 that presses the inner surface of the transmission gear 18 toward the frame 8.
It has a suppressing surface 31 that presses in a direction away from % 8, and a slope 32 that connects these suppressing surfaces 30.31, and has an axis 33.
It is rotatably held at a frame of 7% by 8. The suppressing surface 3o rotates in a vertical plane close to the frame zz 8, and the pressing surface 31 is stepped so as to rotate in a vertical plane away from the frame zl. Also, suppression surface 30.31
and the slope 32 are located on a radius centered on the axis 33.
また、シフ１〜レバー２９は図示しないトグルスプリン
グにより中立位置を境として両側に反転自在に付勢され
ているものである。Further, the shifter 1 to the lever 29 are biased by a toggle spring (not shown) so as to be reversible to both sides of the neutral position.
このような構成において、第４図、第５図に示すように
、シフｌ−レバー２９を矢印Ｂ方向に回動すると斜面３
２と押圧面３１とが順次ギヤ１８の内面を押圧するため
、駆動ギヤ１９は矢印Ｂ′方向に摺動し、シフトレバ−
２９を矢印Ａ方向に回動すると斜面３２と押圧面３０と
が順次ギヤ１７の内面を押圧するため、駆動ギヤ１９は
矢印Ａ′力方向摺動する。In such a configuration, as shown in FIGS. 4 and 5, when the shift lever 29 is rotated in the direction of arrow B, the slope 3
2 and the pressing surface 31 sequentially press the inner surface of the gear 18, the drive gear 19 slides in the direction of arrow B', and the shift lever
When the drive gear 29 is rotated in the direction of the arrow A, the slope 32 and the pressing surface 30 sequentially press the inner surface of the gear 17, so that the drive gear 19 slides in the direction of the force of the arrow A'.
ピンフィード機構１１により用紙３７を送る時は、紙押
え１４を起して用紙３７の両側の送り孔をピンベル１−
１３の突起に嵌合してから紙押え１４を倒し用紙３７を
押え、ピンチローラ６をプラテン１から離反させ、駆動
ギヤ１９を矢印Ａ’力方向移動させる。これにより、第
１図に示すように、駆動ギヤ１９のギヤ１８が歯数の多
い変速ギヤ２６に噛合する。そしてモータの回転をピニ
オン２８から駆動ギヤ１９のギヤ１７に伝達する。When feeding the paper 37 using the pin feed mechanism 11, raise the paper presser 14 and align the feed holes on both sides of the paper 37 with the pin bells 1-
13, the paper presser 14 is pushed down to press the paper 37, the pinch roller 6 is separated from the platen 1, and the drive gear 19 is moved in the direction of arrow A' force. As a result, as shown in FIG. 1, the gear 18 of the drive gear 19 meshes with the transmission gear 26 having a large number of teeth. The rotation of the motor is then transmitted from the pinion 28 to the gear 17 of the drive gear 19.
これにより、プラテン１．とピンベル１〜１３とが時計
方向へ回転する。この時、ギヤ１８に噛合する変速ギヤ
２６は転移により歯数が少ないので、プラテン１の周速
度はピンベル１−１３の周速度より僅かに早い。したが
って、用紙３７は用紙通路（図示せず）から摩擦抵抗を
受けたとしても周速度の早いプラテン１に引っ張られ弛
むことがない。As a result, platen 1. and pin bells 1 to 13 rotate clockwise. At this time, since the speed change gear 26 that meshes with the gear 18 has a small number of teeth due to the transfer, the peripheral speed of the platen 1 is slightly faster than the peripheral speed of the pin bells 1-13. Therefore, even if the paper 37 is subjected to frictional resistance from a paper path (not shown), it will not be pulled by the platen 1 having a high circumferential speed and will not loosen.
用紙通路の抵抗が少ない場合には用紙３７はプラテン１
に引っ張られながらもプラテン１に対してスリップする
。したがって、ピンベルト１３による紙送り量とプラテ
ン１による紙送り量とは事実上等しい。If there is little resistance in the paper path, the paper 37 is placed on the platen 1.
It slips against platen 1 even though it is being pulled by. Therefore, the amount of paper feeding by the pin belt 13 and the amount of paper feeding by the platen 1 are virtually equal.
他の用紙をフリクション送りする時は、第２図に示すよ
うに、駆動ギヤ１９を矢印Ｂ′方向に摺動させ駆動ギヤ
１９のギヤ１８を歯数の多い変速ギヤ２７に噛合させ、
ピンチローラ６をプラテン１に接触させる。そして、モ
ータの回転をビニオン２８、駆動ギヤ１９のギヤ１７、
ギヤ１８、二段ギヤ２４の変速ギヤ２７を介してプラテ
ン１に伝達する。この時変速ギヤ２７は変速ギヤ２６よ
り歯数が一つ多いのでプラテン１の周速度は正規の周速
度に減速され、したがって、用紙はプラテン１とピンチ
ローラ６とに挾持されて正規の送り量をもって送られる
。When friction-feeding other sheets of paper, as shown in FIG. 2, the drive gear 19 is slid in the direction of arrow B' so that the gear 18 of the drive gear 19 meshes with the transmission gear 27 having a large number of teeth.
The pinch roller 6 is brought into contact with the platen 1. The rotation of the motor is controlled by the pinion 28, the gear 17 of the drive gear 19,
It is transmitted to the platen 1 via the gear 18 and the speed change gear 27 of the two-stage gear 24. At this time, the speed change gear 27 has one more tooth than the speed change gear 26, so the circumferential speed of the platen 1 is reduced to the normal speed. Therefore, the paper is held between the platen 1 and the pinch roller 6 and fed at the normal speed. It will be sent with
なお、駆動ギヤ１９の軸方向の動きを固定し、二段ギヤ
２４を軸方向へ摺動させても同様の作用が得られる。ま
た、プラテン軸２３上に一つのギヤを設け、このギヤに
選択的に噛合される同径の二つの変速ギヤを支軸１５上
に設けてもよい。この場合の変速ギヤは転移させること
により歯数が異なる。さらに、プラテン軸２３と支軸１
５上とに互いに選択的に噛合される変速ギヤを二つずつ
設け、プラテン軸２３上の変速ギヤ又は支軸１５上の変
速ギヤの何れか一方を摺動させてプラテン１の周速度を
変速してもよい。Note that the same effect can be obtained by fixing the axial movement of the drive gear 19 and sliding the two-stage gear 24 in the axial direction. Alternatively, one gear may be provided on the platen shaft 23, and two speed change gears having the same diameter that are selectively meshed with this gear may be provided on the support shaft 15. The number of teeth of the transmission gear in this case differs by shifting. Furthermore, the platen shaft 23 and the support shaft 1
Two speed change gears that are selectively meshed with each other are provided on the top and bottom of the platen 1, and the peripheral speed of the platen 1 is changed by sliding either the speed change gear on the platen shaft 23 or the speed change gear on the support shaft 15. You may.
一８＝
発明の効果
この発明は上述のように構成したので、ピンフィード機
構により用紙を送る時は、変速ギヤを操作してピンフィ
ード機構の回転体の周速度よりプラテンの周速度を早く
してプラテン外周における用紙の弛みを防止し、他の用
紙をフリクション送りする時は、プラテンの周速度を１
１：、規の周速度に戻すことができ、したがって、ピン
フィード機構により用紙を送る場合でもプラテンとピン
チローラとにより用紙を送る場合でも、用紙の送り量を
等しくすることができ、ジャ１１の発生を防止すること
ができる等の効果を有する。18 = Effects of the Invention Since this invention is configured as described above, when feeding paper by the pin feed mechanism, the peripheral speed of the platen is made faster than the peripheral speed of the rotating body of the pin feed mechanism by operating the speed change gear. to prevent the paper from slackening around the outer circumference of the platen, and when friction feeding other papers, reduce the peripheral speed of the platen to 1.
1: The peripheral speed can be returned to the normal peripheral speed. Therefore, whether the paper is fed by the pin feed mechanism or the platen and pinch roller, the paper feed amount can be made equal, and the It has the effect of being able to prevent the occurrence.
第１図ないし第５図はこの発明の一実施例を示すもので
、第１図はピンフィード機構により用紙を送る状態を示
す一側の平面図、第２図はプラテンとピンチローラとに
より用紙を送る状態を示す平面図、第３図は側面図、第
４図は駆動ギヤとシフトレバーとを示す斜視図、第５図
はその側面図、第６図は従来例を示す側面図である。1 to 5 show one embodiment of the present invention. FIG. 1 is a plan view of one side showing a state in which paper is fed by a pin feed mechanism, and FIG. FIG. 3 is a side view, FIG. 4 is a perspective view showing the drive gear and shift lever, FIG. 5 is a side view thereof, and FIG. 6 is a side view showing a conventional example. .
Claims (1)
に噛合するギヤを含む複数のギヤによりプラテン伝動機
構を形成し、用紙の両側に形成された送り孔に係合する
回転体を有するピンフィード機構を設け、前記駆動ギヤ
に噛合するギヤと前記回転体に連結されたピンフィード
ギヤとを含む複数のギヤによりピンフィード伝動機構を
形成し、前記回転体の周速度に対して前記プラテンの周
速度を同速又は増速に可変する変速ギヤを前記駆動ギヤ
から前記プラテンに至る動力伝達経路中に設けたことを
特徴とする用紙送り装置。 ２、転移歯車を含む変速ギヤを設けたことを特徴とする
特許請求の範囲第１項記載の用紙送り装置。[Claims] 1. A drive gear driven by a motor is provided, and a plurality of gears including a gear that meshes with the drive gear form a platen transmission mechanism, which engages with feed holes formed on both sides of the paper. a pin feed mechanism having a rotating body that adjusts the circumferential speed of the rotating body; A paper feeding device characterized in that a speed change gear that changes the circumferential speed of the platen to the same speed or an increased speed is provided in a power transmission path from the drive gear to the platen. 2. The paper feeding device according to claim 1, further comprising a transmission gear including a transfer gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23480385A JPS6294365A (en) | 1985-10-21 | 1985-10-21 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23480385A JPS6294365A (en) | 1985-10-21 | 1985-10-21 | Paper feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6294365A true JPS6294365A (en) | 1987-04-30 |
Family
ID=16976630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23480385A Pending JPS6294365A (en) | 1985-10-21 | 1985-10-21 | Paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6294365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02121247U (en) * | 1989-03-14 | 1990-10-02 | ||
| US5122004A (en) * | 1990-05-17 | 1992-06-16 | Brother Kogyo Kabushiki Kaisha | Printing system with a function of printing on labels |
| EP0798123A2 (en) * | 1996-03-29 | 1997-10-01 | Canon Kabushiki Kaisha | Continuous and cut sheet guide mechanism for image recording apparatus |
-
1985
- 1985-10-21 JP JP23480385A patent/JPS6294365A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02121247U (en) * | 1989-03-14 | 1990-10-02 | ||
| US5122004A (en) * | 1990-05-17 | 1992-06-16 | Brother Kogyo Kabushiki Kaisha | Printing system with a function of printing on labels |
| EP0798123A2 (en) * | 1996-03-29 | 1997-10-01 | Canon Kabushiki Kaisha | Continuous and cut sheet guide mechanism for image recording apparatus |
| EP0798123A3 (en) * | 1996-03-29 | 1997-11-05 | Canon Kabushiki Kaisha | Continuous and cut sheet guide mechanism for image recording apparatus |
| US5899613A (en) * | 1996-03-29 | 1999-05-04 | Canon Kabushiki Kaisha | Image recording apparatus having conveying means for both continuous sheet and single sheet |
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