JP2528402B2 - Paper separator of automatic paper feeder - Google Patents
Paper separator of automatic paper feederInfo
- Publication number
- JP2528402B2 JP2528402B2 JP3234011A JP23401191A JP2528402B2 JP 2528402 B2 JP2528402 B2 JP 2528402B2 JP 3234011 A JP3234011 A JP 3234011A JP 23401191 A JP23401191 A JP 23401191A JP 2528402 B2 JP2528402 B2 JP 2528402B2
- Authority
- JP
- Japan
- Prior art keywords
- pad
- sheet
- paper
- medium
- roller
- 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 - Fee Related
Links
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】この発明は、情報処理装置のプリ
ンタに用いられる自動給紙装置の用紙分離装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper separating device of an automatic paper feeding device used in a printer of an information processing device.
【０００２】[0002]
【従来の技術】回転する分離ローラとその周面に弾圧さ
れた摩擦パッドとの間にシート状媒体を通過させて、分
離ローラからシート状媒体の片面に与えられる摩擦駆動
力と分離パッドからシート状媒体の他の面に与えられる
摩擦抵抗力とによって、給送されるシート状媒体を１枚
ずつ分離する用紙分離装置は公知である。2. Description of the Related Art A sheet-shaped medium is passed between a rotating separation roller and a friction pad that is elastically pressed against the peripheral surface of the separation roller, and the friction driving force applied from the separation roller to one side of the sheet-shaped medium and the separation pad to the sheet. A sheet separating device is known which separates the fed sheet-like mediums one by one by a frictional resistance force applied to the other surface of the sheet-like medium.
【０００３】この種の用紙分離装置では、分離ローラを
軸方向（紙幅方向）に複数個に分割して設け、紙幅の異
なる各種寸法のシート状媒体がスキュー（斜行）を生ず
ることなく供給されるようにしている。In this type of paper separating apparatus, a separating roller is divided into a plurality of parts in the axial direction (paper width direction), and sheet-like media of various sizes having different paper widths are supplied without causing skew. I am trying to do it.
【０００４】この種の用紙分離装置において、横綴じ複
写媒体すなわち印字行と直交する方向の一方の辺（通常
左辺）が糊付けによって綴じられた複写媒体をその綴じ
辺を基準側辺にして自動給紙により印刷処理できるよう
にするために、摩擦パッドの基準辺側（以下および特許
請求の範囲において「左側」という。）の部分と反基準
辺側（以下および特許請求の範囲において「右側」とい
う。）の部分とに分離して、分離したそれぞれのパッド
を分離ローラに付勢する付勢バネを各別に設け、横綴じ
複写媒体を処理するときには、右側パッドを分離ローラ
から離隔させた状態で保持し、媒体の綴じ辺部分に当接
する左側部分の分離ローラと摩擦パッドのみで横綴じ複
写媒体の分離を行うことができるようにした装置がこの
発明の出願人によって提唱されている（特願平３−１９
４２８号）。In this type of paper separating apparatus, a horizontally bound copy medium, that is, a copy medium in which one side (usually the left side) in the direction orthogonal to the print line is bound by gluing is automatically fed with the binding side as the reference side. In order to enable print processing with paper, a portion of the friction pad on the reference side (hereinafter referred to as “left side” in the claims) and an opposite reference side (hereinafter referred to as “right side” in the claims). .) Part, and each of the separated pads is provided with an urging spring for urging the separated pad to the separating roller, and when processing the laterally bound copy medium, the right pad is separated from the separating roller. According to the applicant of the present invention, there is provided a device capable of separating a laterally-stitched copy medium only by a friction roller and a separation roller on a left side portion that holds the medium and is in contact with a binding side portion of the medium. It has been proposed Te (Japanese Patent Application No. 3-19
428).
【０００５】[0005]
【発明が解決しようとする課題】摩擦パッド６を左側部
６Ｌと右側部６Ｒとに分離した上記構造の装置では、分
離ローラ５と右側パッド６Ｒとの接触長さが左側パッド
６Ｌとの接触長さより長くなるので、標準幅のシート状
媒体２７を給送するときの単位接触長さ当たりの当接力
が均一となるように、右側パッド６Ｒを付勢する右側バ
ネ１１Ｒの付勢力を左側パッド６Ｌを付勢する左側バネ
１１Ｌの付勢力よりも大きくしている。In the device having the above structure in which the friction pad 6 is separated into the left side portion 6L and the right side portion 6R, the contact length between the separating roller 5 and the right side pad 6R is the contact length between the left side pad 6L. Therefore, the biasing force of the right side spring 11R that biases the right side pad 6R is set so that the contacting force per unit contact length when feeding the standard width sheet-like medium 27 becomes uniform. Is larger than the biasing force of the left spring 11L that biases the.
【０００６】供給されるシート状媒体２７の幅がある程
度広い場合には、右側パッド６Ｒが充分に広い幅でシー
ト状媒体２７に接触し、左側パッド６Ｌのシート状媒体
２７に対する影響力は相対的に小さくなるので、紙幅が
変化しても斜行のない正確な給紙が可能である。When the width of the sheet-shaped medium 27 supplied is relatively wide, the right pad 6R contacts the sheet-shaped medium 27 with a sufficiently wide width, and the influence of the left-side pad 6L on the sheet-shaped medium 27 is relatively large. Since it becomes smaller, it is possible to feed paper accurately without skew even if the paper width changes.
【０００７】しかし紙幅の小さな媒体、特に紙幅が小さ
くて曲げ剛性が比較的大きな媒体（例えば名刺）を供給
しようとすると、右側パッド６Ｒと媒体２７との接触長
さが短くなり、右側バネ１１Ｒの付勢力が強い関係上、
媒体２７は分離ローラ５と右側パッド６Ｒとの間で強く
挟持されて大きな駆動力と大きな分離力とが付与され
る。一方左側パッド６Ｌは左側バネ１１Ｌの付勢力が弱
いために、媒体２７の曲げ剛性によって退避させられ、
媒体２７の左側には小さな駆動力しか作用しないことと
なる。However, when a medium having a small paper width, particularly a medium having a small paper width and relatively large bending rigidity (for example, a business card) is to be supplied, the contact length between the right side pad 6R and the medium 27 becomes short, and the right side spring 11R has a short contact length. Because of the strong bias,
The medium 27 is strongly sandwiched between the separating roller 5 and the right pad 6R, and a large driving force and a large separating force are applied. On the other hand, the left pad 6L is retracted by the bending rigidity of the medium 27 because the biasing force of the left spring 11L is weak.
Only a small driving force acts on the left side of the medium 27.
【０００８】そのためパッドを左側パッド６Ｌと右側パ
ッド６Ｒとに分割した用紙分離装置では、紙幅の狭いシ
ート状媒体２７を印刷したときに、用紙スキューが生
じ、用紙の正確な供給が不可能になるという問題が発生
した。Therefore, in the paper separating device in which the pad is divided into the left pad 6L and the right pad 6R, when the sheet medium 27 having a narrow paper width is printed, a paper skew occurs and it becomes impossible to accurately supply the paper. The problem occurred.
【０００９】この発明は、以上の問題を解決するために
なされたもので、横綴じ複写媒体を綴じ辺を基準辺とし
て分離供給することが可能であるとともに、紙幅の広狭
に関わりなく、シート状媒体の斜行のない正確な給紙が
可能な装置を得ることを課題としている。The present invention has been made to solve the above problems, and it is possible to separately supply a side-stitched copy medium with a binding side as a reference side, and a sheet-shaped sheet regardless of the width of the sheet. An object of the present invention is to obtain an apparatus capable of feeding paper accurately without skewing of the medium.
【００１０】[0010]
【課題を解決するための手段】本発明の自動給紙装置の
用紙分離装置は、シート状媒体２７の片面に摩擦給送力
を与える分離ローラ５に向けて付勢されている摩擦パッ
ド６が、比較的短い左側パッド６Ｌと全体として左側パ
ッドより長い右側パッド６Ｒとに分割され、左側パッド
６Ｌと右側パッド６Ｒとを各独立に付勢する左側バネ１
１Ｌと右側バネ１１Ｒとが設けられている。In the paper separating device of the automatic paper feeder according to the present invention, a friction pad 6 is urged toward a separating roller 5 which gives a frictional feeding force to one surface of the sheet-shaped medium 27. The left spring 1 is divided into a relatively short left pad 6L and a right pad 6R that is longer than the left pad as a whole, and independently biases the left pad 6L and the right pad 6R.
1L and the right spring 11R are provided.
【００１１】更にこの発明の装置では、分離ローラ５か
らの左側パッド６Ｌの離隔動作を右側パッド６Ｒに伝達
し、分離ローラ５からの右側パッド６Ｒの離隔動作を左
側パッド６Ｌに伝達しない一方向クラッチ要素１３が設
けられている。Further, in the apparatus of the present invention, the one-way clutch which transmits the separating operation of the left pad 6L from the separating roller 5 to the right pad 6R and does not transmit the separating operation of the right pad 6R from the separating roller 5 to the left pad 6L. Element 13 is provided.
【００１２】クラッチ要素１３としては、右側パッド６
Ｒの支持部材１０Ｒに固定した連係ピン１３を左側パッ
ド６Ｌまたはその支持部材１０Ｌの反分離ローラ側に接
離自在に当接させる構造、左側パッドの支持部材１０Ｌ
に固定した連係ピン１３を右側パッドまたはその支持部
材１０Ｒの分離ローラ側に接離自在に当接させる構造、
左側パッドの支持部材１０Ｌおよび右側パッドの支持部
材１０Ｒを軸支する支軸９に支持部材１０Ｌ、１０Ｒの
うちの一方を自由回動可能に、他方を固定して設けると
ともに、前記一方の支持部材と支軸９との間に一方向ク
ラッチを介装する構造などを採用することができる。The right side pad 6 is used as the clutch element 13.
A structure in which the linking pin 13 fixed to the R support member 10R is brought into contact with and separated from the left pad 6L or the anti-separation roller side of the support member 10L, the left pad support member 10L.
A structure in which the linking pin 13 fixed to the right side pad or the supporting roller 10R of the right side pad is releasably brought into contact with the separation roller side.
One of the support members 10L and 10R is provided so as to be freely rotatable and the other is fixedly provided on a support shaft 9 that supports the left pad support member 10L and the right pad support member 10R, and the one support member is also provided. A structure in which a one-way clutch is interposed between the shaft 9 and the support shaft 9 can be adopted.
【００１３】[0013]
【作用】横綴じ複写媒体を処理するときには、従来構造
と同様、右側パッド６Ｒを分離ローラ５から離隔させた
状態で保持し、横綴じ複写媒体を左側パッド６Ｌとそれ
に対向する分離ローラ５のみによって分離して供給す
る。このときの右側パッド６Ｒの下動動作は、左側パッ
ド６Ｌには伝達されず、左側バネ１１Ｌによる左側パッ
ド６Ｒの分離ローラ５への付勢力は保持される。When processing a side-stitched copy medium, the right-side pad 6R is held in a state of being separated from the separation roller 5 as in the conventional structure, and the side-stitched copy medium is held only by the left-side pad 6L and the separation roller 5 facing it. Separately supplied. The downward movement of the right pad 6R at this time is not transmitted to the left pad 6L, and the urging force of the left pad 6R to the separation roller 5 by the left spring 11L is maintained.
【００１４】一方右側パッド６Ｒを分離ローラ５に付勢
して通常のシート状媒体２７を処理するときには、媒体
の剛性によって付勢力の小さな左側パッド６Ｌが分離ロ
ーラ５から離隔しようとすると、クラッチ要素１３によ
って左側パッド６Ｌと右側パッド６Ｒとが連係された状
態となり、右側バネ１１Ｒの付勢力がクラッチ要素１３
を介して左側パッド６Ｌに伝達される。そのため左側パ
ッド６Ｌと右側パッド６Ｒとが略一体となってシート状
媒体２７に押接される状態となり、左側パッド６Ｌと右
側パッド６Ｒの分離ローラ５との接触単位長さ当たりの
付勢力が均一化される。On the other hand, when the right side pad 6R is urged against the separation roller 5 to process a normal sheet-like medium 27, when the left side pad 6L having a small urging force is about to be separated from the separation roller 5 due to the rigidity of the medium, the clutch element is used. The left pad 6L and the right pad 6R are linked by 13 and the urging force of the right spring 11R is applied to the clutch element 13
Is transmitted to the left pad 6L via. Therefore, the left pad 6L and the right pad 6R are substantially integrally pressed against the sheet-like medium 27, and the urging force of the left pad 6L and the right pad 6R with respect to the separation roller 5 is uniform per unit length. Be converted.
【００１５】従って、紙幅の小さいシート状媒体２７が
供給されたときにも、左側パッド６Ｌのみが退避すると
いう事態が生ぜず、しかも左側パッド６Ｌと右側パッド
６Ｒからシート状媒体２７に作用する給紙力および分離
力も均一化されるので、用紙スキューの発生が回避さ
れ、幅の広狭にかかわらずシート状媒体の正確な給紙が
可能になる。Therefore, even when the sheet-shaped medium 27 having a small paper width is supplied, the situation in which only the left pad 6L is withdrawn does not occur, and the sheet-shaped medium 27 is acted on from the left pad 6L and the right pad 6R. Since the paper force and the separating force are also made uniform, the occurrence of paper skew is avoided, and the sheet medium can be accurately fed regardless of the width.
【００１６】[0016]
【実施例】以下実施例を示す図面に基いて説明する。図
１において、１は自動給紙装置、２は昇降する用紙台、
３は用紙の上面に当接するピックアップローラ、４は用
紙分離装置、５は分離ローラ、６Ｌおよび６Ｒは摩擦パ
ッドである。Embodiments will be described below with reference to the drawings showing embodiments. In FIG. 1, reference numeral 1 is an automatic paper feeder, 2 is a paper stand that moves up and down,
Reference numeral 3 is a pickup roller that comes into contact with the upper surface of the sheet, 4 is a sheet separating device, 5 is a separating roller, and 6L and 6R are friction pads.
【００１７】分離ローラ５とピックアップローラ３は、
図示しない装置フレームに支点軸７まわりに揺動自在に
枢支されたアーム８に軸着されている。さらにこのアー
ム８には、支軸９が装架され、この支軸に左側パッド支
持部材１０Ｌと右側パッド支持部材１０Ｒが各独立に揺
動自在に装着され、各パッド支持部材１０Ｌ、１０Ｒに
左側と右側の摩擦パッド６Ｌ、６Ｒがそれぞれ固着され
ている。The separation roller 5 and the pickup roller 3 are
An arm 8 is pivotally supported on a device frame (not shown) so as to be swingable around a fulcrum shaft 7. Further, a supporting shaft 9 is mounted on the arm 8, and a left pad supporting member 10L and a right pad supporting member 10R are independently swingably mounted on the supporting shaft. And the right friction pads 6L and 6R are fixed to each other.
【００１８】各パッド支持部材１０Ｌ、１０Ｒは、一端
をアーム８に係止され他端をパッド支持部材１０Ｌ、１
０Ｒに係止された左側と右側の巻バネ１１Ｌ、１１Ｒに
よって各独立に分離ローラ５側に付勢されており、この
付勢力によって摩擦パッド６Ｌ、６Ｒが分離ローラ５の
周面に押接されている。One end of each pad support member 10L, 10R is locked to the arm 8 and the other end is pad support member 10L, 1R.
The left and right winding springs 11L and 11R locked at 0R are independently biased toward the separation roller 5 side, and the friction pads 6L and 6R are pressed against the peripheral surface of the separation roller 5 by this biasing force. ing.
【００１９】図示実施例の分離ローラ５は、５個のロー
ラ要素１２Ｌ、１２Ｒ・・を備えており、左側の１個の
ローラ要素１２Ｌが左側パッド６Ｌの幅方向中央に対向
し、他の４個のローラ要素１２Ｒ・・はすべて右側パッ
ド６Ｒと対向している。したがって左側パッド６Ｌは右
側パッド６Ｒより幅狭で、各ローラ要素１２Ｌ、１２Ｒ
・・に対する摩擦パッド６Ｌ、６Ｒの押接力が均一とな
るように、図の実施例のものでは、左側巻バネ１１Ｌの
付勢力を右側巻バネ１１Ｒの付勢力の１／４の強さにし
てある。The separating roller 5 of the illustrated embodiment is provided with five roller elements 12L, 12R ..., One roller element 12L on the left side opposes the center of the left pad 6L in the width direction, and the other roller element 12L. The individual roller elements 12R ... All face the right pad 6R. Therefore, the left pad 6L is narrower than the right pad 6R, and each roller element 12L, 12R is
In order to make the pressing force of the friction pads 6L, 6R against the .. uniform, the urging force of the left winding spring 11L is set to 1/4 of the urging force of the right winding spring 11R in the illustrated embodiment. is there.
【００２０】左側パッド支持部材１０Ｌと右側パッド支
持部材１０Ｒとの間には、図２および図３に示すよう
に、一方向クラッチ要素となる連係ピン１３が設けられ
ており、この連係ピン１３は、右側パッド支持部材１０
Ｒに固定されて左側パッド支持部材１０Ｌの反分離ロー
ラ側に接離自在に当接している。両パッド支持部材１０
Ｌ、１０Ｒは、引き抜き成形によって得られた帯状部材
を切断することによって製作されており、図２に示すよ
うに、背面にＵ字状の溝１４を備えた全く同一の断面形
状を有している。連係ピン１３は、大径部１３ａと小径
部１３ｂを備えており、大径部１３ａを右側パッド支持
部材１０ＲのＵ字溝１４Ｒに嵌合して固定し、小径部１
３ｂを左側パッド支持部材１０ＬのＵ字溝１４Ｌに内延
在させることによって、左側パッド支持部材１０Ｌの背
面に当接させている。Between the left pad support member 10L and the right pad support member 10R, as shown in FIGS. 2 and 3, there is provided a linking pin 13 which serves as a one-way clutch element. , Right pad support member 10
It is fixed to R and abuts on the side of the left pad support member 10L opposite to the separation roller so as to be freely separable. Both pad support members 10
L and 10R are manufactured by cutting a strip-shaped member obtained by pultrusion, and as shown in FIG. 2, have the same cross-sectional shape with a U-shaped groove 14 on the back surface. There is. The linking pin 13 includes a large diameter portion 13a and a small diameter portion 13b, and the large diameter portion 13a is fitted and fixed in the U-shaped groove 14R of the right pad support member 10R.
By extending 3b in the U-shaped groove 14L of the left pad supporting member 10L, it is brought into contact with the back surface of the left pad supporting member 10L.
【００２１】上記構造の用紙分離装置は、後述するリリ
ース機構により右側パッド６Ｒを分離ローラ５から退避
させたときには、連係ピン１３の小径部１３ｂが左側パ
ッド支持部材１０ＬのＵ字溝１４Ｌ内を移動して離隔
し、左側パッド６Ｌは左側バネ１１Ｌの付勢力により分
離ローラ５に押接された状態を保つ。In the sheet separating device having the above structure, when the right pad 6R is retracted from the separating roller 5 by the release mechanism described later, the small diameter portion 13b of the linking pin 13 moves in the U-shaped groove 14L of the left pad supporting member 10L. The left pad 6L is kept pressed against the separation roller 5 by the urging force of the left spring 11L.
【００２２】一方、幅狭いシート用紙を挿通させたとき
に、挿通された用紙の剛性により左側パッド６Ｌが押し
下げられたときには、左側パッド支持部材１０ＬのＵ字
溝１４Ｌの底面が連係ピンの小径部１３ｂに当接してこ
れを押し下げ、右側パッド支持部材１０Ｒが左側パッド
支持部材１０Ｌと略一体となって押し下げられる。この
とき左側パッド６Ｌと右側パッド６Ｒには、連係ピン１
３の大径部１３ａと小径部１３ｂとの半径差に相当する
段差ｍが生じるが、この段差はわずかであり、実際の給
紙動作には支障を生じない。この実施例に示すように、
本願発明は極めて簡単な構造で実現可能である。On the other hand, when a narrow sheet of paper is inserted and the left pad 6L is pushed down due to the rigidity of the inserted paper, the bottom surface of the U-shaped groove 14L of the left pad support member 10L is the small diameter portion of the linking pin. 13b is abutted and pushed down, and the right pad support member 10R is pushed down substantially integrally with the left pad support member 10L. At this time, the linking pin 1 is attached to the left pad 6L and the right pad 6R.
Although there is a step m corresponding to the difference in radius between the large diameter portion 13a and the small diameter portion 13b of No. 3, this step is small and does not hinder the actual paper feeding operation. As shown in this example,
The present invention can be realized with an extremely simple structure.
【００２３】図４および５は、右側パッド６Ｒのリリー
ス機構を示す図で、分離ローラ５の軸１７に自由回転可
能にリリースレバー１８が軸着されており、このリリー
スレバー１８と一体にカム１９が設けられ、このカム１
９の回動により、図５に示すように、右側パッド支持部
材１０Ｌを押し下げて右側パッド６Ｌを分離ローラ５か
ら離隔させるようになっている。4 and 5 are views showing the release mechanism of the right side pad 6R. A release lever 18 is rotatably attached to a shaft 17 of the separation roller 5 and a cam 19 is integrated with the release lever 18. Is provided for this cam 1
As shown in FIG. 5, the rotation of 9 pushes down the right pad support member 10L to separate the right pad 6L from the separation roller 5.
【００２４】リリースレバー１８の根元には、円弧状に
延びるガイド２０が形成されており、このガイド２０が
アーム８に植立されたピン２１の周面に設けた円周溝２
２に摺動自在に嵌合することにより、リリースレバー１
８の振れを防止している。A guide 20 extending in an arc shape is formed at the base of the release lever 18, and the guide 20 is provided with a circumferential groove 2 provided on the peripheral surface of a pin 21 that is erected on the arm 8.
Release lever 1
8 runout is prevented.
【００２５】横綴じ複写用紙を自動給紙するときは、リ
リースレバー１８を押し下げて図５に示した状態にして
給紙を行う。このとき右側パッド６Ｒは分離ローラ５か
ら離隔している。通常のシート状媒体２７を自動給紙す
るときは、リリースレバー１８を引き上げて図４に示す
状態で給紙を行う。When automatically feeding the laterally bound copy sheets, the release lever 18 is pushed down to feed the sheets in the state shown in FIG. At this time, the right pad 6R is separated from the separation roller 5. When the normal sheet medium 27 is automatically fed, the release lever 18 is pulled up and fed in the state shown in FIG.
【００２６】なお、図１に示す２６は用紙台２の左辺に
設けた基準辺ガイド、２７は名刺等のシート状媒体、２
８は改行ローラであり、分離ローラ５と摩擦パッド６
Ｌ、６Ｒの間を通過した用紙は、改行ローラ２８のニッ
プ部に当接させてスキューを修正した後、改行ローラ２
８に挟持されて図示しない印字部へと送り込まれる。In FIG. 1, 26 is a reference side guide provided on the left side of the paper tray 2, 27 is a sheet-like medium such as a business card, and 2
8 is a line feed roller, which is a separation roller 5 and a friction pad 6.
The sheet that has passed between L and 6R is brought into contact with the nip portion of the line feed roller 28 to correct the skew, and then the line feed roller 2
It is sandwiched by 8 and fed to a printing unit (not shown).
【００２７】[0027]
【発明の効果】以上説明したこの発明の用紙分離装置を
備えた自動給紙装置によれば、名刺等の紙幅の小さいシ
ート状媒体が供給されたときにも、左側パッドのみが退
避するという事態が生ぜず、しかも左側パッドと右側パ
ッドからシート状媒体に作用する給紙力および分離力も
均一化されるので、用紙スキューの発生が回避される。
したがって横綴じ複写媒体の分離供給が可能であるとと
もに、幅の広狭にかかわらずシート状媒体のスキューの
ない正確な給紙が可能になる。According to the automatic paper feeder having the paper separating device of the present invention described above, only the left side pad is retracted even when a sheet-shaped medium having a small paper width such as a business card is supplied. The paper feeding force and the separating force acting on the sheet-shaped medium from the left side pad and the right side pad are also made uniform, so that the sheet skew is avoided.
Therefore, it is possible to separate and feed the horizontally-stitched copy medium, and it is possible to accurately feed the sheet-shaped medium without skewing regardless of the width.
【図１】本発明の自動給紙装置の平面図FIG. 1 is a plan view of an automatic sheet feeder according to the present invention.
【図２】用紙分離装置の側面図FIG. 2 is a side view of the sheet separating device.
【図３】図２のＡ部断面図FIG. 3 is a sectional view of part A in FIG.
【図４】図１のＢ部断面図FIG. 4 is a sectional view of part B in FIG.
【図５】摩擦パッドの離隔状態を示す図FIG. 5 is a view showing a separated state of the friction pad.
１ 自動給紙装置 ５ 分離ローラ ６(6L,6R) 摩擦パッド 11(11L,11R) 巻バネ 13 連係ピン 27 シート状媒体 1 Automatic paper feeder 5 Separation roller 6 (6L, 6R) Friction pad 11 (11L, 11R) Winding spring 13 Linking pin 27 Sheet-shaped medium
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−112333（ＪＰ，Ａ) 特開 昭60−223743（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A 63-112333 (JP, A) JP-A 60-223743 (JP, A)
Claims (1)
与える分離ローラ(5) と、この分離ローラの周面に向け
て付勢されてシート状媒体(27)の他面に摩擦抵抗力を与
える摩擦パッド(6) とを備え、摩擦パッド(6) が比較的
短い左側パッド(6L)と、全体として左側パッドより長い
右側パッド(6R)とに分割され、左側パッド(6L)と右側パ
ッド(6R)とを各独立に付勢する左側バネ(11L) と右側バ
ネ(11R) とが設けられている自動給紙装置の用紙分離装
置において、左側パッド(6L)の分離ローラ(5) からの離
隔動作を右側パッド(6R)に伝達し、右側パッド(6R)の分
離ローラ(5) からの離隔動作を左側パッド(6L)に伝達し
ない一方向クラッチ要素(13)が設けられていることを特
徴とする、自動給紙装置の用紙分離装置。1. A separation roller (5) for giving a frictional feeding force to one surface of a sheet-shaped medium (27), and to the other surface of the sheet-shaped medium (27) urged toward the peripheral surface of the separation roller. A friction pad (6) that provides friction resistance, the friction pad (6) is divided into a relatively short left side pad (6L) and a right side pad (6R) that is longer than the left side pad as a whole, and the left side pad (6L ) And the right side pad (6R) independently of each other, the left side spring (11L) and the right side spring (11R) are provided in the sheet separating device of the automatic paper feeder. A one-way clutch element (13) is provided that transmits the separation motion from (5) to the right pad (6R) and does not transmit the separation motion of the right pad (6R) from the separation roller (5) to the left pad (6L). A sheet separating device for an automatic sheet feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3234011A JP2528402B2 (en) | 1991-08-20 | 1991-08-20 | Paper separator of automatic paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3234011A JP2528402B2 (en) | 1991-08-20 | 1991-08-20 | Paper separator of automatic paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0543071A JPH0543071A (en) | 1993-02-23 |
| JP2528402B2 true JP2528402B2 (en) | 1996-08-28 |
Family
ID=16964158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3234011A Expired - Fee Related JP2528402B2 (en) | 1991-08-20 | 1991-08-20 | Paper separator of automatic paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528402B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3227189B2 (en) | 1991-12-25 | 2001-11-12 | キヤノン株式会社 | Apparatus provided with flexible cable and ink jet recording apparatus provided with the apparatus |
-
1991
- 1991-08-20 JP JP3234011A patent/JP2528402B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0543071A (en) | 1993-02-23 |
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