JPH02295837A - Paper feeding mechanism - Google Patents
Paper feeding mechanismInfo
- Publication number
- JPH02295837A JPH02295837A JP11449389A JP11449389A JPH02295837A JP H02295837 A JPH02295837 A JP H02295837A JP 11449389 A JP11449389 A JP 11449389A JP 11449389 A JP11449389 A JP 11449389A JP H02295837 A JPH02295837 A JP H02295837A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- paper
- rotating body
- sun
- arrow
- 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
- 238000000034 method Methods 0.000 claims description 6
- 230000002596 correlated effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000669 biting effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
Landscapes
- Handling Of Cut Paper (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
【発明の詳細な説明】 １権九乱 本発明は、コピア、プリンタの紙送り機構に関する。[Detailed description of the invention] First power nine rebellion The present invention relates to a paper feeding mechanism for copiers and printers.
丈未皮権
一般に、用紙を１枚１枚送り出す給紙ローラは、１枚送
り出す時、次の用紙に摩擦力を伝えない為（連続で回転
すると切れ目なく紙を送り出してしまう）、第６図（ａ
）〜（ｃ、）のような方法がとられている。（ａ）は回
転を係止する方法で、回転を停止したあと、まだ送り呂
そうとする紙を下にはさんでいる。これを引き呂すのが
、第７図の搬送ローラである。搬送ローラは、給紙コロ
による紙との摩擦力に抗して紙をひっばり出す。この時
、少しでも負荷を減らす為に給紙コロと、それを軸支す
るシャフトの間に一方面クラッチを介在させ紙をひっば
ると、一方向クラッチとシャフト間で回転して摩擦力が
軽減されるようになっている。しかしながら、軽減され
たとはいっても、がなりの摩擦負荷が残り、がっ、給紙
コロの慣性負荷があらたに加わり良い方法とはいえない
。（ｂ）は平割リコロを用いる方法で１本発明とは直接
がかわりないが、（ａ）との比較をしておくと、半割り
の周長さだけしか用紙を送り出せない。したがって、搬
送ローラをがなり近くにもってこなければならなくなる
など配置に制限ができる。（ｃ）は給紙コロを上下移動
させる方法で、これも本発明とは直接かかわりないが、
（ａ）と比較しておくと、給紙コロを駆動するシャフト
を上下動する複雑な機構になる。In general, the paper feed roller that feeds sheets of paper one by one does not transmit frictional force to the next sheet of paper when it feeds out one sheet (if it rotates continuously, it feeds out the paper without a break), as shown in Figure 6. (a
) to (c,) are used. (a) is a method of locking the rotation; after the rotation has stopped, the paper that is still being fed is placed underneath. The transport roller shown in FIG. 7 pulls this. The conveyance roller pulls out the paper against the frictional force with the paper caused by the paper feed roller. At this time, in order to reduce the load as much as possible, a one-way clutch is interposed between the paper feed roller and the shaft that supports it, and when the paper is stretched, it rotates between the one-way clutch and the shaft, reducing the frictional force. It is now possible to do so. However, even though it is reduced, a slight frictional load remains, and the inertia load of the paper feed roller is added, which is not a good method. (b) is a method using a flat split recoro, and is not directly different from the present invention, but when compared with (a), the paper can only be sent out by the circumferential length of the half split. Therefore, there are restrictions on the arrangement, such as the need to bring the conveyance roller close to the corner. (c) is a method of moving the paper feed roller up and down, which is also not directly related to the present invention, but
Comparing with (a), it is a complicated mechanism that moves the shaft that drives the paper feed roller up and down.
前記（ａ）〜（Ｑ）どちらの駆動源による駆動でも、ロ
ーラが回転して紙を送る為、摩擦負荷はほとんどなくな
る。しかしながら、この機構は、給紙コロは使えない。When driven by any of the drive sources (a) to (Q), the roller rotates to feed the paper, so the frictional load is almost eliminated. However, this mechanism cannot use paper feed rollers.
又、一方向クラッチが１個ふえるなど十分な低コストと
はいえない。In addition, the cost cannot be said to be sufficiently low because one one-way clutch is added.
特開昭６２−７５７５号公報に記載された発明は、上記
（ａ）の改良で被駆動軸に２系統に分けた駆動源を各々
クラッチ（一方向クラッチ）を介して伝達するようにし
だ機構が開示されている。The invention described in Japanese Unexamined Patent Application Publication No. 62-7575 is an improvement of the above (a), and provides a mechanism in which two separate drive sources are transmitted to the driven shaft through respective clutches (one-way clutches). is disclosed.
また、特公昭５６−３１９７号公掲には、太陽ギヤ、遊
星ギヤ、揺動アームによる機構を使ったリボン送り機構
が開示されている。Further, Japanese Patent Publication No. 56-3197 discloses a ribbon feeding mechanism using a mechanism including a sun gear, a planetary gear, and a swing arm.
■−−孜
本発明は、上述のごとき実情に鑑みてなされたもので、
用紙搬送力の自動可変機構を備えた紙送り機構を提供す
ることを目的としてなされたものである。■--- Keimoto The present invention was made in view of the above-mentioned circumstances.
The purpose of this invention is to provide a paper feeding mechanism equipped with a mechanism for automatically varying the paper conveyance force.
週−一」λ
本発明は、上記目的を達成するために、第１の回転体（
太陽ローラ１）と、支持部材（揺動アーム４）により該
第１の回転体の回りを遊星できるようにした第２の回転
体（遊星ローラ２）とを有し、該第１の回転体及び第２
の回転体に設けられた回転伝達部材（ギヤ７．１２など
）、又は、該第１の回転体と第２の回転体との接触によ
り回転が伝達されるようにした回転伝達手段とにより、
前記第１の回転体の回転で前記第２の回転体に回転が伝
達すると同時に、前記第２の回転体と第３の回転体（従
動ローラ３）又は固定部材（搬送台１０）の間に紙をは
さんで送ることを特徴としたものである。以下、本発明
の実施例に基づいて説明する。In order to achieve the above object, the present invention provides a first rotating body (
The first rotating body includes a sun roller 1) and a second rotating body (planetary roller 2) that can be planetary around the first rotating body by a support member (swing arm 4). and second
By means of a rotation transmitting member (gear 7.12, etc.) provided on the rotating body, or a rotation transmitting means that transmits rotation through contact between the first rotating body and the second rotating body,
At the same time that the rotation of the first rotating body is transmitted to the second rotating body, there is a gap between the second rotating body and the third rotating body (driven roller 3) or the fixed member (transfer table 10). It is characterized by being sent with a piece of paper between them. Hereinafter, the present invention will be explained based on examples.
第１図は、本発明による紙送り機構の一実施例を説明す
るための構成図で、図中、１は太陽ローラ、２は遊星ロ
ーラ、３は従動ローラ、４は揺動アーム、５は用紙であ
る。なお、各矢印は回転進行方向を示す。揺動アーム４
に回転自在に軸支された太陽ローラｌと遊星ローラ２は
互いに接触し、回転を伝達する。太陽ローラ１の位置は
、フレーム（図示していない）に固定され、遊星ローラ
２は揺動アーム４により太陽ローラ１の回りを回動可能
になっている。従動ローラ３は遊星ローラ２と接触する
位置に配され、フレームに回転自在に軸支されている。FIG. 1 is a configuration diagram for explaining one embodiment of a paper feeding mechanism according to the present invention, in which 1 is a sun roller, 2 is a planetary roller, 3 is a driven roller, 4 is a swing arm, and 5 is a It is paper. Note that each arrow indicates the direction of rotation. Swing arm 4
The sun roller 1 and the planetary roller 2, which are rotatably supported by a shaft, come into contact with each other and transmit rotation. The position of the sun roller 1 is fixed to a frame (not shown), and the planetary roller 2 is rotatable around the sun roller 1 by a swing arm 4. The driven roller 3 is arranged at a position in contact with the planetary roller 2, and is rotatably supported by the frame.
駆動源（図示せず）より太陽ローラ１を矢印Ａのほうに
回転すると、遊星ローラ２は矢印Ｂのように回転する。When the sun roller 1 is rotated in the direction of arrow A by a drive source (not shown), the planetary roller 2 is rotated in the direction of arrow B.
この時、揺動アーム４は太陽ローラ１の回りに矢印Ａ方
向に回転力を得て、従動ローラ３に遊星ローラ２を接触
させ、回転を伝達する。遊星ローラ２と従動ローラ３の
間にはさまれた用紙は矢印Ｃ方向へ移動する。なお、各
ローラの位置関係は、太陽ローラ１が回転すると遊星ロ
ーラ２がくい込み勝手になり、従動ローラ３との押圧力
がふえるような位置関係が望ましい。At this time, the swing arm 4 obtains a rotational force around the sun roller 1 in the direction of arrow A, brings the planetary roller 2 into contact with the driven roller 3, and transmits the rotation. The paper sandwiched between the planetary roller 2 and the driven roller 3 moves in the direction of arrow C. The positional relationship between the respective rollers is preferably such that when the sun roller 1 rotates, the planetary roller 2 tends to bite into it, and the pressing force with the driven roller 3 increases.
第２図及び第３図は、本発明の他の実施例を示すもので
、図中、６は駆動ギヤ、７は太陽ギヤ、８は太陽シャフ
ト、９は遊星ローラ、１０は搬送台、１１は揺動アーム
、１２は遊星ギヤ、１３は用紙、１４は軸受、１５はフ
レームである。フレーム１５に固着された軸受１４に回
転自在に太陽シャフト８が軸支されている。太陽シャフ
ト８の片側には太陽ギヤ７が同着され、回転力を駆動ギ
ヤ６より伝達される６太陽シヤフト８の両側には揺動ア
ーム１１が回転自在に嵌合しており、他端には遊星ロー
ラ９の軸が回転自在に嵌合し、遊星ギヤ１２と太陽ギヤ
７がかみ合って遊星ローラ９を回転するようになってい
る。遊星ローラ９は、揺動アーム１１により太陽シャフ
ト８の回りを回動可能となっており、第３図に示すよう
に搬送台１０に接触する。用紙１３が遊星ローラ９に送
り込まれると、遊星ローラ９により用紙１３は第３図の
矢印り方向へ送られる。2 and 3 show other embodiments of the present invention, in which 6 is a drive gear, 7 is a sun gear, 8 is a sun shaft, 9 is a planetary roller, 10 is a conveyance table, 11 1 is a swing arm, 12 is a planetary gear, 13 is paper, 14 is a bearing, and 15 is a frame. A sun shaft 8 is rotatably supported by a bearing 14 fixed to a frame 15. A sun gear 7 is attached to one side of the sun shaft 8, and rotational force is transmitted from the drive gear 6. A swing arm 11 is rotatably fitted to both sides of the sun shaft 8, and a swing arm 11 is rotatably fitted to the other end. The shaft of the planetary roller 9 is rotatably fitted, and the planetary gear 12 and the sun gear 7 are engaged to rotate the planetary roller 9. The planetary roller 9 is rotatable around the sun shaft 8 by a swing arm 11, and comes into contact with a conveyance table 10 as shown in FIG. When the paper 13 is fed into the planetary roller 9, the paper 13 is fed by the planetary roller 9 in the direction of the arrow in FIG.
第４図は１本発明の紙送り機構を複写機の紙送り機構に
適用した例を模式的に示す。図中、１６は感光体が表面
に塗られているＯＰＣドラム、１７はチャージャー １
８は太陽ローラ、１９は遊星ローラ、２０は従動ローラ
、２１は揺動アーム、２２は用紙、２３は給紙ローラ（
動作は遊星ローラと同じ）、２４は重ねられた用紙、２
５は太陽ローラ、２６は揺動アームである。給紙コロ２
３により送り出された用紙２２は、レジストローラを兼
ねる遊星ローラ１９と従動ローラ２０に突き当る。タイ
ミングをとりながら太陽ローラ１８が駆動されると遊星
ローラ１９と従動ローラ２０により用紙２２が送り出さ
れる。この時、給紙コロ２３は停止している。揺動アー
ム２６は回転自在になっている為、給紙コロ２３が停止
していても、用紙２２の引き出しにともない揺動アーム
２６が第４図で時計方向へ回転して、はとんど負荷とは
なりえない。また、第５図の構成によれば、搬送ローラ
２７を用いて両ローラで紙を送っている時、流ローラ間
でつっばりが生じた時、揺動アームの回動により遊星ロ
ーラの送り力が開放され、搬送ローラ２７の送りになら
って紙は送られ、相互干渉の問題がなく、スムーズに紙
を送ることができる。FIG. 4 schematically shows an example in which the paper feeding mechanism of the present invention is applied to a paper feeding mechanism of a copying machine. In the figure, 16 is an OPC drum whose surface is coated with a photoreceptor, 17 is a charger 1
8 is a sun roller, 19 is a planetary roller, 20 is a driven roller, 21 is a swing arm, 22 is paper, 23 is a paper feed roller (
The operation is the same as that of the planetary roller), 24 is the stacked paper, 2
5 is a sun roller, and 26 is a swing arm. Paper feed roller 2
The paper 22 sent out by the roller 3 collides with a planetary roller 19 which also serves as a registration roller and a driven roller 20. When the sun roller 18 is driven with proper timing, the paper 22 is sent out by the planetary roller 19 and the driven roller 20. At this time, the paper feed roller 23 is stopped. Since the swinging arm 26 is rotatable, even if the paper feed roller 23 is stopped, the swinging arm 26 rotates clockwise as the paper 22 is pulled out, as shown in FIG. It cannot be a load. In addition, according to the configuration shown in FIG. 5, when paper is being fed by both rollers using the conveyance roller 27, when a tension occurs between the flow rollers, the rotation of the swinging arm causes the feeding force of the planetary roller to be applied. is opened and the paper is fed in accordance with the feed of the conveyance roller 27, so that there is no problem of mutual interference and the paper can be fed smoothly.
劾−−−果
以上の説明から明らかなように、本発明によると、用紙
の送り負荷が増加すると、揺動アームが反時計方向に回
動（くい込み勝手）して押圧力を増して搬送力が自動的
に大きくなり、又、負荷が小さくなれば、それに対応し
た押圧力になり（揺動アームが動いて）用紙搬送力の自
動可変機構となる。又、さらに、第４図のように複数の
送りコロによって搬送される紙は、後方を受は持つコロ
が停止しても、揺動アームの回動により用紙を押えつけ
る力が開放され、摩擦負荷はほとんどない。As is clear from the above explanation, according to the present invention, when the paper feeding load increases, the swinging arm rotates counterclockwise (biting action) to increase the pressing force and increase the conveying force. When the load automatically increases, and the load decreases, the corresponding pressing force is applied (the swinging arm moves), forming an automatic variable paper conveying force mechanism. Furthermore, as shown in Fig. 4, even if the rollers holding the rear end of the paper conveyed by multiple feed rollers stop, the rotation of the swinging arm releases the force that presses the paper down, causing friction. There is almost no load.
第１図は、本発明による紙送り機構の一実施例を説明す
るための構成図、第２図、第３図は、本発明による他の
実施例を示す図、第４図は、本発明を複写機に適用した
場合を示す図、第５図は、搬送ローラを用いた場合の図
、第６図は、紙送り機構の種々の方式を示す図、第７図
は、搬送ローラを用いた場合を示す図である。
１・・・太陽ローラ、２・・・遊星ローラ、３・・・従
動ローラ、４・・・揺動アーム、５・・・用紙。
第１図
二一ノ／
第２図
第３図FIG. 1 is a configuration diagram for explaining one embodiment of the paper feeding mechanism according to the present invention, FIGS. 2 and 3 are diagrams showing other embodiments according to the present invention, and FIG. 5 is a diagram showing the case where the paper feed mechanism is applied to a copying machine, FIG. 5 is a diagram showing the case where a conveyance roller is used, FIG. 6 is a diagram showing various methods of the paper feeding mechanism, and FIG. FIG. 1... Sun roller, 2... Planetary roller, 3... Followed roller, 4... Swinging arm, 5... Paper. Figure 1 21 / Figure 2 Figure 3
Claims (1)
回りを遊星できるようにした第２の回転体とを有し、該
第１の回転体及び第２の回転体に設けられた回転伝達部
材、又は、該第１の回転体と第２の回転体との接触によ
り回転が伝達されるようにした回転伝達手段とにより、
前記第１の回転体の回転で前記第２の回転体に回転が伝
達すると同時に、前記第２の回転体と第３の回転体又は
固定部材の間に紙をはさんで送ることを特徴とする紙送
り機構。1. It has a first rotating body and a second rotating body that can be planetary around the first rotating body by a support member, and is provided on the first rotating body and the second rotating body. or a rotation transmitting means configured to transmit rotation through contact between the first rotating body and the second rotating body,
The method is characterized in that the rotation of the first rotating body transmits rotation to the second rotating body, and at the same time, paper is fed between the second rotating body and the third rotating body or a fixed member. paper feeding mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1114493A JP2718991B2 (en) | 1989-05-08 | 1989-05-08 | Paper feed mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1114493A JP2718991B2 (en) | 1989-05-08 | 1989-05-08 | Paper feed mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02295837A true JPH02295837A (en) | 1990-12-06 |
| JP2718991B2 JP2718991B2 (en) | 1998-02-25 |
Family
ID=14639142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1114493A Expired - Fee Related JP2718991B2 (en) | 1989-05-08 | 1989-05-08 | Paper feed mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2718991B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247594A (en) * | 1993-02-26 | 1994-09-06 | Central Glass Co Ltd | Positioning device for glass of irregular shape |
| JPH07149455A (en) * | 1993-11-30 | 1995-06-13 | Kofu Nippon Denki Kk | Paper sheet insert mechanism |
| JP2011136828A (en) * | 2009-12-29 | 2011-07-14 | Brother Industries Ltd | Image recording apparatus |
| WO2011158822A1 (en) * | 2010-06-16 | 2011-12-22 | 株式会社朝日ラバー | Excess pressure release valve and excess pressure release unit |
| US20130043648A1 (en) * | 2011-08-19 | 2013-02-21 | Canon Kabushiki Kaisha | Conveying apparatus and recording apparatus |
| US8768235B2 (en) | 2009-12-29 | 2014-07-01 | Brother Kogyo Kabushiki Kaisha | Double-sided image recording device having a compact form factor |
| US9821967B2 (en) | 2009-12-29 | 2017-11-21 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| US9975356B2 (en) | 2010-01-29 | 2018-05-22 | Brother Kogyo Kabushiki Kaisha | Image recording device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS533329U (en) * | 1976-06-25 | 1978-01-13 | ||
| JPH01105254A (en) * | 1987-10-17 | 1989-04-21 | Fuji Photo Film Co Ltd | Pressurizing device |
-
1989
- 1989-05-08 JP JP1114493A patent/JP2718991B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS533329U (en) * | 1976-06-25 | 1978-01-13 | ||
| JPH01105254A (en) * | 1987-10-17 | 1989-04-21 | Fuji Photo Film Co Ltd | Pressurizing device |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247594A (en) * | 1993-02-26 | 1994-09-06 | Central Glass Co Ltd | Positioning device for glass of irregular shape |
| JP2695105B2 (en) * | 1993-02-26 | 1997-12-24 | セントラル硝子株式会社 | Deformed glass positioning device |
| JPH07149455A (en) * | 1993-11-30 | 1995-06-13 | Kofu Nippon Denki Kk | Paper sheet insert mechanism |
| US9452619B2 (en) | 2009-12-29 | 2016-09-27 | Brother Kogyo Kabushiki Kaisha | Image recording device having a compact form factor |
| US9283778B2 (en) | 2009-12-29 | 2016-03-15 | Brother Kogyo Kabushiki Kaisha | Image recording device having a compact form factor |
| US11890862B2 (en) | 2009-12-29 | 2024-02-06 | Brother Kogyo Kabushiki Kaisha | Image recording device having a compact form factor |
| US8768235B2 (en) | 2009-12-29 | 2014-07-01 | Brother Kogyo Kabushiki Kaisha | Double-sided image recording device having a compact form factor |
| US11279577B2 (en) | 2009-12-29 | 2022-03-22 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| US9045302B2 (en) | 2009-12-29 | 2015-06-02 | Brother Kogyo Kabushiki Kaisha | Image recording device having a compact form factor |
| US9051144B2 (en) | 2009-12-29 | 2015-06-09 | Brother Kogyo Kabushiki Kaisha | Double-sided image recording device having a compact form factor |
| US10273099B2 (en) | 2009-12-29 | 2019-04-30 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| US9440460B2 (en) | 2009-12-29 | 2016-09-13 | Brother Kogyo Kabushiki Kaisha | Image recording device with a sheet feeder that contacts a duplex return guide |
| JP2011136828A (en) * | 2009-12-29 | 2011-07-14 | Brother Industries Ltd | Image recording apparatus |
| US9821967B2 (en) | 2009-12-29 | 2017-11-21 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| US11077678B2 (en) | 2009-12-29 | 2021-08-03 | Brother Kogyo Kabushiki Kaisha | Image recording device having a compact form factor |
| US10086629B2 (en) | 2009-12-29 | 2018-10-02 | Brother Kogyo Kabushiki Kaisha | Image recording device having a compact form factor |
| US10414174B2 (en) | 2009-12-29 | 2019-09-17 | Brother Kogyo Kabushiki Kaisha | Image recording device having a compact form factor |
| US9975356B2 (en) | 2010-01-29 | 2018-05-22 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| US10207521B2 (en) | 2010-01-29 | 2019-02-19 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| US10668746B2 (en) | 2010-01-29 | 2020-06-02 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| US11065891B2 (en) | 2010-01-29 | 2021-07-20 | Brother Kogyo Kabushiki Kaisha | Image recording device |
| WO2011158822A1 (en) * | 2010-06-16 | 2011-12-22 | 株式会社朝日ラバー | Excess pressure release valve and excess pressure release unit |
| US8973920B2 (en) * | 2011-08-19 | 2015-03-10 | Canon Kabushiki Kaisha | Conveying apparatus and recording apparatus |
| US20130043648A1 (en) * | 2011-08-19 | 2013-02-21 | Canon Kabushiki Kaisha | Conveying apparatus and recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2718991B2 (en) | 1998-02-25 |
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