JPH03233B2 - - Google Patents
Info
- Publication number
- JPH03233B2 JPH03233B2 JP10673681A JP10673681A JPH03233B2 JP H03233 B2 JPH03233 B2 JP H03233B2 JP 10673681 A JP10673681 A JP 10673681A JP 10673681 A JP10673681 A JP 10673681A JP H03233 B2 JPH03233 B2 JP H03233B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- roller
- paper feeding
- arm
- support
- 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
- 238000005452 bending Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 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
- 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
- B41J13/02—Rollers
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Handling Of Cut Paper (AREA)
Description
【発明の詳細な説明】
本発明は小型のプリンタや事務機器等に用いら
れる紙送り機構の、特に紙押え手段に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding mechanism used in small printers, office equipment, etc., and particularly to paper holding means.
第１図は従来の紙送り機構を説明するための図
である。同図において、１は力を得て回転する紙
送りと手段の紙送りローラで軸２とそれに固着さ
れるローラ３からなる。４は紙押え手段で紙押え
ローラ５と該紙押えローラ５を保持する保持部材
６と紙押えローラ５を印刷紙７を介して紙送りロ
ーラ１へ押圧するバネ８からなる。保持部材６は
６ａに紙押えローラ５を保持し、６ｂを回転中心
として、６ｃをバネ８に抗してＢ方向に回転させ
たとき、Ａ方向に紙押えローラ５が動き、紙送り
ローラ１への押圧が解除される。この動作を行な
うのに印刷紙から下にＬの区域が必要である。こ
のとき印刷紙７は自由に挿脱できる。６ｃをもと
にもどすと、紙押えローラ５が紙送りローラ１に
加圧され、紙送りローラ１の回転に共なつて、印
刷紙７はＣ方向に送られる。以上従来から使われ
ている一般的な紙送り機構について説明してきた
が、この方法によると、印刷紙７から紙押え手段
側へ長さＬの区域が必要である。これは超小型プ
リンタの紙送り機構の場合でも、３〜５mmは必要
である。 FIG. 1 is a diagram for explaining a conventional paper feeding mechanism. In the figure, reference numeral 1 denotes a paper feeding roller which rotates under the influence of force, and is composed of a shaft 2 and a roller 3 fixed to the shaft. Reference numeral 4 denotes paper pressing means, which includes a paper pressing roller 5, a holding member 6 for holding the paper pressing roller 5, and a spring 8 for pressing the paper pressing roller 5 against the paper feed roller 1 via the printing paper 7. The holding member 6 holds the paper press roller 5 at 6a, and when 6c is rotated in the B direction against the spring 8 with 6b as the center of rotation, the paper press roller 5 moves in the A direction, and the paper feed roller 1 The pressure on is released. An area of L below the printing paper is required to perform this operation. At this time, the printing paper 7 can be freely inserted and removed. When 6c is returned to its original position, the paper pressing roller 5 is pressed against the paper feed roller 1, and as the paper feed roller 1 rotates, the printing paper 7 is fed in the C direction. The general paper feeding mechanism conventionally used has been described above, but according to this method, an area of length L is required from the printing paper 7 to the paper pressing means side. Even in the case of a paper feed mechanism of a micro-compact printer, a distance of 3 to 5 mm is required.
本発明はかくの如き欠点を除去したもので、そ
の目的は、バネ性を有する細い針金に回転体を通
しただけの簡帯単な機構にすることによつて、小
さくまとめ、かつ部品点数を減らし、安くて信頼
性の高い紙送り機構を提供することである。 The present invention eliminates these drawbacks, and its purpose is to make the mechanism compact and reduce the number of parts by creating a simple mechanism in which a rotating body is passed through a thin wire with spring properties. The purpose of the present invention is to provide a paper feeding mechanism that is inexpensive and highly reliable.
本発明は、記録紙が紙送りローラと紙押えロー
ラとの間に挟持され前記紙送りローラの回転によ
つて前記記録紙を搬送する紙送り機構において、
前記紙押えローラを回転可能に支持する支持部
及び該支持部とある角度をもつて折曲したアーム
部とを有する支持部材と、
前記アーム部を少なくとも第１と第２の位置に
位置決めする位置決め部材とを有し、
前記アーム部が前記位置決め部材の前記第１の
位置に位置決めされる時は、前記支持部と前記ア
ーム部との角度が拡がるよう前記アーム部が位置
決めされることにより前記支持部に撓み変形を生
じさせ弾発力で前記紙押えローラを前記紙送りロ
ーラへ付勢し、
更に、前記アーム部が前記位置決め部材の前記
第２の位置に位置決めされる時は、前記支持部の
撓み変形が元に戻ることにより前記紙押えローラ
を前記紙送りローラから離す方向に作動するよう
構成したことを特徴とする紙送り機構である。 The present invention provides a paper feed mechanism in which recording paper is held between a paper feed roller and a paper presser roller and conveys the recording paper by rotation of the paper feed roller, the paper presser roller being rotatably supported. a support member having a support part and an arm part bent at a certain angle with the support part; and a positioning member for positioning the arm part in at least a first and a second position, the arm part being When the positioning member is positioned at the first position, the arm part is positioned so that the angle between the support part and the arm part widens, thereby causing a bending deformation in the support part and generating an elastic force. presses the paper press roller against the paper feed roller, and when the arm section is positioned at the second position of the positioning member, the bending deformation of the support section returns to the original position, and the The paper feeding mechanism is characterized in that it is configured to operate in a direction that moves the paper pressing roller away from the paper feeding roller.
以下、図面に示す実施例に基づいて本発明の詳
細を説明する。 Hereinafter, details of the present invention will be explained based on embodiments shown in the drawings.
第２図は本発明の一実施例を示す斜視図であ
る。９は力を得て回転する紙送り手段の紙送りロ
ーラで、軸１０とそれに固着されるローラ１１か
らなる。１２は紙押え手段で紙押えローラ１４と
該紙押えローラ１４を回転可能に軸支持し、弓形
のバネを有する細い丸棒の針金１３である。 FIG. 2 is a perspective view showing an embodiment of the present invention. Reference numeral 9 denotes a paper feeding roller of a paper feeding means that rotates by receiving force, and is composed of a shaft 10 and a roller 11 fixed to the shaft. Reference numeral 12 denotes a paper presser means, which is a paper presser roller 14 and a thin round wire 13 that rotatably supports the paper presser roller 14 and has an arcuate spring.
第３図，第４図，第５図の平面図、正面図、側
面図において、その動作を詳しく説明する。第４
図に於いて、紙押えローラ１４は針金１３の１３
ｃに回転可能に挿入される。針金１３は、弓形を
なし、通常の紙送り時には、印刷紙１５を介して
紙送り手段９のローラ１１に自己のバネ力によつ
て押圧する。その時の反力は、１３ａ，１３ｂで
軸支される。次に印刷紙１５を挿脱したい場合は
針金１３の紙押えローラ１４挿入部１３ｃとほぼ
直角に曲げられたアーム１３ｄを、第５図矢印Ｄ
方向に回転させる。針金１３はバネ性を有して弓
形に曲げられているため、紙押えローラ１４はＥ
からＦの位置に移動する。そのため、紙送り手段
９のローラ１１と紙押えローラ１４の間には、押
圧が解除され空隙ができる。印刷紙１５はこの空
隙を抵抗なく通過することができ、簡単に挿脱で
きる。紙送り時には針金１３のアーム１３ｄを元
にもどせばよい。この動作を確実にするために、
第３図に示す紙押え位置決め手段１６を設ける。
アーム１３ｄはバネ性を有しており、紙押え位置
決め手段１６の１６ａから１６ｂの間を矢印Ｇの
如く移動することができる。１６ａは、紙押え手
段セツト時で１６ｂは紙押え手段解除時の位置を
示す。紙押え手段セツト時は、針金１３のアーム
１３ｄは、紙押え位置決め手段１６の１６ａに位
置し、自己の有するバネ力によつて、矢印Ｈ方向
に押圧されているため容易に解除されることはな
い。 The operation will be explained in detail with reference to the plan view, front view, and side view of FIGS. 3, 4, and 5. Fourth
In the figure, the paper press roller 14 is connected to the wire 13 at 13.
is rotatably inserted into c. The wire 13 has an arcuate shape, and during normal paper feeding, presses against the roller 11 of the paper feeding means 9 via the printing paper 15 by its own spring force. The reaction force at that time is supported by 13a and 13b. Next, when you want to insert or remove the printing paper 15, move the arm 13d of the wire 13, which is bent almost at right angles to the paper presser roller 14 insertion part 13c, to the arrow D in FIG.
Rotate in the direction. Since the wire 13 has spring properties and is bent into an arched shape, the paper pressing roller 14 is
Move from to position F. Therefore, the pressure is released and a gap is created between the roller 11 of the paper feeding means 9 and the paper pressing roller 14. The printing paper 15 can pass through this gap without resistance and can be easily inserted and removed. When feeding the paper, the arm 13d of the wire 13 can be returned to its original position. To ensure this behavior,
A paper presser positioning means 16 shown in FIG. 3 is provided.
The arm 13d has a spring property and can move between 16a and 16b of the paper presser positioning means 16 as shown by arrow G. 16a indicates the position when the paper presser is set, and 16b indicates the position when the paper presser is released. When the paper presser means is set, the arm 13d of the wire 13 is located at 16a of the paper presser positioning means 16 and is pressed in the direction of arrow H by its own spring force, so it cannot be easily released. do not have.
以上紙押え手段１２の動作を説明してきたが、
紙押え手段１２のセツト時と解除時の動作領域は
第５図に示す如く印刷紙１５の進行方向には大き
いが図の下方向にはほとんど動作しない。そのた
め、紙押え手段１２の占める領域は印刷紙１５か
ら長さｌの距離が必要である。これらは超小型プ
リンタの紙送り機構の場合、1.5〜２mmであり、
前述した第１図のＬの３〜５mmより、かなり小さ
くすることができる。これによつて、プリンタは
さらに超小型をはかることができ、さらに機構が
極めて簡単で、部品点数が少なく、安くて信頼性
の高い紙送り機構を提供することができる。 Although the operation of the paper pressing means 12 has been explained above,
As shown in FIG. 5, the operating range of the paper presser means 12 during setting and release is large in the advancing direction of the printing paper 15, but hardly moves in the downward direction in the figure. Therefore, the area occupied by the paper pressing means 12 needs to be a distance l from the printing paper 15. These are 1.5 to 2 mm in the case of the paper feed mechanism of an ultra-compact printer.
It can be made considerably smaller than the 3 to 5 mm of L shown in FIG. 1 mentioned above. As a result, the printer can be made even more compact, and furthermore, it is possible to provide a paper feeding mechanism that is extremely simple, has a small number of parts, and is inexpensive and highly reliable.
以上の説明から明らかなように、本発明によれ
ば、紙押えローラを支持する支持部材を一体の弾
性体によつて構成するとともに、この支持部材を
第１の位置に位置決めする時は支持部材の撓み変
形によつて生じる弾発力で紙押えローラを紙送り
ローラへ付勢し、支持部材を第２の位置に位置決
めする時は、紙押えローラと紙送りローラより離
すことができるので、構成部品を最小限にして小
型で、しかも、精度の良い紙送り並びに記録紙の
レリーズが可能となる。 As is clear from the above description, according to the present invention, the support member that supports the paper pressing roller is formed of an integral elastic body, and when the support member is positioned at the first position, the support member The paper presser roller is urged toward the paper feed roller by the elastic force generated by the bending deformation of the support member, and when the supporting member is positioned at the second position, the paper presser roller and the paper feed roller can be separated from each other. It is possible to minimize the number of component parts, make it compact, and moreover, enable highly accurate paper feeding and recording paper release.
第１図は従来から使われている一般的な紙送り
機構の概略図である。第２図は本発明の一実施例
を示す斜視図であり、第３図，第４図，第５図
は、その動作を説明する平面図、正面図、側面図
である。
９…紙送り手段（紙送りローラ）、１０…軸、
１１…ローラ、１２…紙押え手段、１３…針金、
１４…紙押えローラ、１５…印刷紙、１６…紙押
え位置決め手段。
FIG. 1 is a schematic diagram of a conventional paper feeding mechanism. FIG. 2 is a perspective view showing an embodiment of the present invention, and FIGS. 3, 4, and 5 are a plan view, a front view, and a side view illustrating its operation. 9...paper feeding means (paper feeding roller), 10...shaft,
11...Roller, 12...Paper pressing means, 13...Wire,
14...Paper presser roller, 15...Printing paper, 16...Paper presser positioning means.
Claims (1)
に挟持され前記紙送りローラの回転によつて前記
記録紙を搬送する紙送り機構において、 前記紙押えローラを回転可能に支持する支持部
及び該支持部とある角度をもつて折曲したアーム
部とを有する支持部材と、 前記アーム部を少なくとも第１と第２の位置に
位置決めする位置決め部材とを有し、 前記アーム部が前記位置決め部材の前記第１の
位置に位置決めされる時は、前記支持部と前記ア
ーム部との角度が拡がるよう前記アーム部が位置
決めされることにより前記支持部に撓み変形を生
じさせ弾発力で前記紙押えローラを前記紙送りロ
ーラへ付勢し、 更に、前記アーム部が前記位置決め部材の前記
第２の位置に位置決めされる時は、前記支持部の
撓み変形が元に戻ることにより前記紙押えローラ
を前記紙送りローラから離す方向に作動するよう
構成したことを特徴とする紙送り機構。[Scope of Claims] 1. In a paper feeding mechanism in which recording paper is held between a paper feeding roller and a paper pressing roller and conveying the recording paper by rotation of the paper feeding roller, the paper pressing roller is rotatable. a support member having a support part that supports the support part and an arm part bent at a certain angle with the support part; and a positioning member that positions the arm part in at least a first and a second position, When the arm portion is positioned at the first position of the positioning member, the arm portion is positioned so that the angle between the support portion and the arm portion widens, thereby causing a bending deformation in the support portion. The paper pressing roller is urged toward the paper feeding roller by an elastic force, and when the arm section is positioned at the second position of the positioning member, the bending deformation of the support section returns to its original state. A paper feeding mechanism characterized in that the paper holding roller is operated in a direction in which the paper pressing roller is moved away from the paper feeding roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10673681A JPS588679A (en) | 1981-07-08 | 1981-07-08 | Paper feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10673681A JPS588679A (en) | 1981-07-08 | 1981-07-08 | Paper feeding mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS588679A JPS588679A (en) | 1983-01-18 |
| JPH03233B2 true JPH03233B2 (en) | 1991-01-07 |
Family
ID=14441207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10673681A Granted JPS588679A (en) | 1981-07-08 | 1981-07-08 | Paper feeding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS588679A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537521A (en) * | 1982-11-05 | 1985-08-27 | Siemens Aktiengesellschaft | Paper feed mechanism with varying contact pressure |
| SE453657B (en) * | 1985-05-09 | 1988-02-22 | Ericsson Telefon Ab L M | FRICTION DEVICE PREFERRED FOR FERGBAND CARTRIDGES |
| JP2524781Y2 (en) * | 1988-08-05 | 1997-02-05 | アルプス電気株式会社 | Paper feed roller structure in printer |
| JP2763387B2 (en) * | 1990-07-20 | 1998-06-11 | キヤノン株式会社 | Sheet transport device and printer having the sheet transport device |
| TW500669B (en) | 2000-12-29 | 2002-09-01 | Benq Corp | Paper transporting device of printing machine |
-
1981
- 1981-07-08 JP JP10673681A patent/JPS588679A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS588679A (en) | 1983-01-18 |
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