JPH0711058Y2 - Paper separator - Google Patents
Paper separatorInfo
- Publication number
- JPH0711058Y2 JPH0711058Y2 JP1988079258U JP7925888U JPH0711058Y2 JP H0711058 Y2 JPH0711058 Y2 JP H0711058Y2 JP 1988079258 U JP1988079258 U JP 1988079258U JP 7925888 U JP7925888 U JP 7925888U JP H0711058 Y2 JPH0711058 Y2 JP H0711058Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet
- paper feed
- friction member
- 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 - Lifetime
Links
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、プリンタ，複写機等に設けられ、多数枚堆積
させた紙葉を給紙ローラにより一枚ずつ分離して繰出す
紙葉分離装置に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention is provided in a printer, a copying machine, etc., and separates a large number of stacked paper leaves one by one by a paper feed roller and feeds them. Regarding the device.
〈従来の技術〉 給紙ローラを用いた紙葉分離装置では、紙葉が複数枚重
なった状態で送られる所謂重送を防止する為の一手段と
して、摩擦部材を給紙ローラに圧接させ、紙葉を、この
給紙ローラと摩擦部材間を通すことにより一枚ずつ分離
して繰出す様に構成している。この種の紙葉分離装置の
従来例としては、第３図の側断面図及び第４図の平面図
に示す様なものがある（特開昭55-135039号）。<Prior Art> In a sheet separating apparatus using a sheet feeding roller, a friction member is brought into pressure contact with the sheet feeding roller as one means for preventing so-called double feeding in which a plurality of sheets are fed in a stacked state. By passing the paper sheet between the paper feed roller and the friction member, the paper sheets are separated and fed out one by one. As a conventional example of this type of sheet separating apparatus, there is one as shown in the side sectional view of FIG. 3 and the plan view of FIG. 4 (Japanese Patent Laid-Open No. 55-135039).
即ち給紙ローラ51に圧接させる摩擦部材52は、アーム53
に固定され、又このアーム53は摩擦部材52の幅方向のほ
ぼ中央に相当する位置において軸54にゆるく嵌着され、
しかもそのアーム53の軸受幅ｗは充分狭く形成されてい
る。そしてアーム53は、スプリング55により、摩擦部材
52を給紙ローラ51に圧接させる方向へ回動すべく付勢さ
れている。この様に上記摩擦部材52は、自由一点支持と
することにより摩擦部材52の全幅において均等な圧力で
給紙ローラ51に圧接する様に設置されている。That is, the friction member 52 that is brought into pressure contact with the sheet feeding roller 51 is the arm 53.
The arm 53 is loosely fitted to the shaft 54 at a position corresponding to approximately the center of the friction member 52 in the width direction,
Moreover, the bearing width w of the arm 53 is formed sufficiently narrow. Then, the arm 53 causes the friction member by the spring 55.
It is urged to rotate 52 in the direction of pressing it against the paper feed roller 51. As described above, the friction member 52 is installed so as to be pressed against the paper feed roller 51 with a uniform pressure over the entire width of the friction member 52 by supporting the friction member 52 at one point.
一方、載置板56上に堆積された紙葉Ｐは、載置板56の下
面に取着されたスプリング57によって給紙ローラ51に圧
接されている。On the other hand, the paper sheets P accumulated on the placing plate 56 are pressed against the sheet feeding roller 51 by the spring 57 attached to the lower surface of the placing plate 56.
そして給紙ローラ51の紙葉Ｐに対する摩擦係数μ1と、
摩擦部材52の紙葉Ｐに対する摩擦係数μ2とは、紙葉Ｐ
どうしの摩擦係数をμ3とした場合に、μ1＞μ2＞μ3の
関係を成す様に設定されている。The friction coefficient μ 1 of the paper feed roller 51 with respect to the paper sheet P is
The friction coefficient μ 2 of the friction member 52 against the paper sheet P is the paper sheet P.
When the friction coefficient between them is μ 3 , they are set to satisfy the relation of μ 1 > μ 2 > μ 3 .
上記構成において、給紙ローラ51を矢印ア方向へ回転さ
せると、上記紙葉Ｐは給紙ローラ51と摩擦部材52間を通
って一枚ずつ分離され、繰出される。即ち複数の紙葉が
重なった状態で給紙ローラ51と摩擦部材52間を通過しよ
うとすると、上述の如き摩擦係数の関係により二枚目以
下の紙葉は停止することになる。In the above structure, when the paper feed roller 51 is rotated in the direction of arrow A, the paper sheets P are separated and fed one by one through the space between the paper feed roller 51 and the friction member 52. That is, when an attempt is made to pass between the paper feed roller 51 and the friction member 52 in a state where a plurality of paper sheets are overlapped, the second and subsequent paper sheets are stopped due to the above-described relationship of the friction coefficient.
〈考案が解決しようとする課題〉 上記給紙ローラ51及び摩擦部材52には、ある程度の軸が
必要である。しかし上記構成では、給紙ローラ51と摩擦
部材52の双方の圧接面に存在する湾曲や凹凸の為に、実
際には摩擦部材52をその全幅において均等な圧力で給紙
ローラ51に圧接させることは困難である。又摩擦部材52
を固定させたアーム53が軸54にゆるく嵌着されている為
に、アーム53は給紙ローラ51の回転軸方向にも揺動する
ことがある。<Problems to be Solved by the Invention> The paper feed roller 51 and the friction member 52 need some shafts. However, in the above-described configuration, due to the curvature and the unevenness existing on the pressure contact surfaces of both the paper feed roller 51 and the friction member 52, the friction member 52 is actually pressed against the paper feed roller 51 at a uniform pressure over its entire width. It is difficult. Also friction member 52
Since the arm 53, which has been fixed, is loosely fitted to the shaft 54, the arm 53 may also swing in the rotation axis direction of the paper feed roller 51.
従って上記紙葉分離装置では、紙葉がスキューしたり分
離が不確実となるといった問題があった。Therefore, the above-described paper sheet separation device has a problem that the paper sheet is skewed and separation is uncertain.
〈課題を解決するための手段〉 本考案は、上記問題点を解決すべく案出した紙葉分離装
置である。<Means for Solving the Problems> The present invention is a paper sheet separating device devised to solve the above problems.
即ち、周壁に円弧部と該円弧部の一部を切欠した弦部と
を形成した同一形状の二個の給紙ローラを、互いに間隔
を設けた状態で且つ上記弦部の向きを一致させた状態で
一本の回転軸に固定するとともに、該回転軸の上記二個
の給紙ローラ間に給紙ローラの円弧部の径より小さく且
つ給紙ローラの弦部の径より大きい径の補助ローラを回
転自在に取着する。That is, two paper feed rollers of the same shape in which a circular arc portion and a chord portion in which a part of the circular arc portion is cut are formed on the peripheral wall, and the chord portions are aligned in the same direction while being spaced from each other. In this state, the auxiliary roller is fixed to one rotation shaft and has a diameter smaller than the diameter of the arc portion of the paper feeding roller and larger than the diameter of the chord portion of the paper feeding roller between the two paper feeding rollers of the rotation shaft. Attach rotatably.
更に摩擦部材を、上記二個の給紙ローラの中間点に相当
する一点で支持するとともに、該一点に力を加えて上記
二個の給紙ローラの円弧部に圧接させることを特徴とす
るものである。Further, the friction member is supported at one point corresponding to an intermediate point of the two paper feed rollers, and a force is applied to the one point to press the arc portions of the two paper feed rollers into pressure contact with each other. Is.
〈作用〉 上記構成により、摩擦部材は二個の給紙ローラの円弧部
に均等な圧力で圧接する。又給紙ローラの弦部が紙葉及
び摩擦部材に相対した状態では、紙葉及び摩擦部材は補
助ローラに圧接する。<Operation> With the above configuration, the friction member is pressed against the arc portions of the two paper feed rollers with a uniform pressure. Further, when the chord portion of the sheet feeding roller faces the sheet and the friction member, the sheet and the friction member are pressed against the auxiliary roller.
〈実施例〉 以下、図面に基づいて本考案の一実施例を説明する。<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.
第１図は、一部を断面図とした、給紙方向手前から見た
本考案の紙葉分離装置の概略図、又第２図は、本考案の
紙葉分離装置の側面概略図である。FIG. 1 is a schematic cross-sectional view of the paper sheet separating apparatus of the present invention viewed from the front in the paper feeding direction, and FIG. 2 is a schematic side view of the paper sheet separating apparatus of the present invention. .
図で示す様に、一本の回転軸１に同一形状の二個の給紙
ローラ２が、所定の間隔L1（30〜100mm程度）を設けた
状態で固定されている。この給紙ローラ２の周壁には、
円弧部2aと該円弧部2aの一部を切欠した弦部2bとが形成
され、周壁全域には、表面を波状としたゴム材３が滑り
止めとして取着されている。そして二個の給紙ローラ２
は、夫々の弦部2bの向きを一致させた状態で配置されて
いる。As shown in the figure, two paper feed rollers 2 of the same shape are fixed to one rotary shaft 1 with a predetermined interval L 1 (about 30 to 100 mm) provided. On the peripheral wall of the paper feed roller 2,
A circular arc portion 2a and a chord portion 2b formed by cutting out a part of the circular arc portion 2a are formed, and a rubber material 3 having a corrugated surface is attached to the entire peripheral wall as a slip stopper. And two paper feed rollers 2
Are arranged in a state where the directions of the respective string portions 2b are matched.
上記回転軸１の二個の給紙ローラ２の間には、給紙ロー
ラ２の円弧部2aの径より小さく且つ給紙ローラ２の弦部
2bの径より大きい径の補助ローラ４が回転自在に取着さ
れている。この補助ローラ４は、紙葉に対する摩擦係数
を小さくする様にプラスチック等により形成され、その
周壁は滑面とされている。Between the two paper feed rollers 2 of the rotary shaft 1, the diameter of the arc portion 2a of the paper feed roller 2 is smaller and the chord portion of the paper feed roller 2 is smaller.
An auxiliary roller 4 having a diameter larger than the diameter 2b is rotatably attached. The auxiliary roller 4 is formed of plastic or the like so as to reduce the coefficient of friction with respect to the sheet, and its peripheral wall is a smooth surface.
一方、上記給紙ローラ２の下方には、二個の給紙ローラ
２の円弧部2aに同時に圧接し得る長さを有する長尺板状
の摩擦部材５が、圧接片６に固定された状態で上記回転
軸１に対して略平行に配置されている。On the other hand, below the paper feed roller 2, a long plate-shaped friction member 5 having a length capable of being brought into pressure contact with the arc portions 2a of the two paper feed rollers 2 at the same time is fixed to the pressure contact piece 6. Are arranged substantially parallel to the rotary shaft 1.
上記圧接片６は、略鉛直な支持部6aと略水平な圧接部6b
とより断面略Ｔ状を成し、且つ上記回転軸１方向におい
て左右対称に形成されたもので、上記摩擦部材５はこの
圧接部6bの上端に固定されている。又圧接片６の支持部
6aの下端中央には下方へ突出した突起７が形成されると
ともに、支持部6aの両端には上記突起７よりも長く下方
へ延出した突片８が形成されている。そしてこの圧接片
６は、圧接レバー９により保持されている。The pressure contact piece 6 includes a substantially vertical support portion 6a and a substantially horizontal pressure contact portion 6b.
Has a substantially T-shaped cross section and is formed symmetrically in the direction of the rotating shaft 1. The friction member 5 is fixed to the upper end of the pressure contact portion 6b. Moreover, the support portion of the pressure contact piece 6
A protrusion 7 protruding downward is formed at the center of the lower end of 6a, and projecting pieces 8 extending downward longer than the protrusion 7 are formed at both ends of the supporting portion 6a. The pressure contact piece 6 is held by the pressure contact lever 9.
上記圧接レバー９は、この分離装置の対象とする紙葉の
幅より長く、例えば長尺板材を折曲して形成され、上記
回転軸１に対して略平行に配置されている。圧接レバー
９の両端には、給紙方向（矢印イ方向）に延出したアー
ム部10が形成されており、圧接レバー９は、このアーム
部10の先端を、上記給紙ローラ２の下端とほぼ同じ高さ
に固設された支軸11に取着することにより回動自在に設
置されている。しかもアーム部10に係着したスプリング
12により、上方へ回動すべく付勢されている。The pressing lever 9 is longer than the width of the paper sheet that is the target of the separating device, is formed by bending a long plate material, for example, and is arranged substantially parallel to the rotating shaft 1. Arms 10 extending in the paper feeding direction (arrow A direction) are formed at both ends of the pressure contact lever 9, and the pressure contact lever 9 has the tip of the arm 10 and the lower end of the paper feed roller 2. It is rotatably installed by being attached to a support shaft 11 fixed to substantially the same height. Moreover, the spring attached to the arm 10
It is urged by 12 to rotate upward.
上記圧接レバー９の給紙方向手前には、略鉛直なエプロ
ン部13が形成されており、更にこのエプロン部13の中央
を略Ｕ状に折曲することにより支持溝14が形成されてい
る。支持溝14の長さL2は、上記圧接片６の両突片８間の
間隙よりわずかに小さい。そしてこの支持溝14に上記圧
接片６が、その支持部6aを緩挿させた状態で嵌着されて
いる。A substantially vertical apron portion 13 is formed in front of the pressure contact lever 9 in the sheet feeding direction, and a support groove 14 is formed by bending the center of the apron portion 13 into a substantially U shape. The length L 2 of the support groove 14 is slightly smaller than the gap between both the projecting pieces 8 of the pressure contact piece 6. The pressure contact piece 6 is fitted in the support groove 14 with the support portion 6a loosely inserted.
上記支持溝14に嵌着された圧接片６は、その支持部6a下
端の突起７が支持溝14の底部14aに当接した状態で支持
され、しかも両端の各突片８が支持溝14の底部14aをゆ
るく挟んだ状態となることにより、上記突起７が上記二
個の給紙ローラ２の中間点に相当する位置、つまり各給
紙ローラ２からL1/2の距離に位置する様に位置決めされ
ている。従って圧接片６は、支持溝14内で移動すること
なく、その突起７を支点として揺動し得る。この圧接片
６の揺動は、圧接片６の圧接部6b下端と圧接レバー９の
エプロン部13上端との間隙ｔの大きさで適宜な範囲に限
定される。The press-contact piece 6 fitted into the support groove 14 is supported in a state where the projection 7 at the lower end of the support portion 6a is in contact with the bottom portion 14a of the support groove 14, and the projection pieces 8 at both ends are provided in the support groove 14. by a loosely sandwiched state bottom 14a, as the protrusion 7 is located at a distance position, i.e. from the paper feed roller 2 of L 1/2, which corresponds to an intermediate point of the two paper feed roller 2 It is positioned. Therefore, the press contact piece 6 can swing about the protrusion 7 as a fulcrum without moving in the support groove 14. The swing of the pressure contact piece 6 is limited to an appropriate range depending on the size of the gap t between the lower end of the pressure contact portion 6b of the pressure contact piece 6 and the upper end of the apron portion 13 of the pressure contact lever 9.
上記構成により、圧接片６に固定された摩擦部材５は、
上記二個の給紙ローラ２の中間点に相当する一点で圧接
レバー９に支持されるとともに、その一点に、付勢され
た圧接レバー９から力が加えられることによって二個の
給紙ローラ２に均等な圧力で圧接することになる。With the above configuration, the friction member 5 fixed to the press contact piece 6 is
The two paper feed rollers 2 are supported by the pressure contact lever 9 at one point corresponding to an intermediate point of the two paper feed rollers 2 and a force is applied to the one point from the biased pressure contact lever 9. It will be pressed with even pressure.
即ち本考案の分離装置では、給紙ローラ２により紙葉に
作用させる幅L3を充分に確保するとともに、紙葉が給紙
ローラ２と摩擦部材５間を通る際にその紙葉にかかる摩
擦力を二個の給紙ローラ２において均等とすることがで
きる。That is, in the separating apparatus of the present invention, the width L 3 that acts on the paper sheet by the paper feeding roller 2 is sufficiently secured, and the friction applied to the paper sheet when the paper sheet passes between the paper feeding roller 2 and the friction member 5. The force can be equalized between the two paper feed rollers 2.
又上記給紙ローラ２の紙葉Ｐに対する摩擦係数μ1と、
摩擦部材５の紙葉Ｐに対する摩擦係数μ2とは、紙葉Ｐ
どうしの摩擦係数をμ3とした場合、μ1＞μ2＞μ3の関
係を成す様に設定されている。Further, the friction coefficient μ 1 of the paper feed roller 2 with respect to the paper sheet P is
The friction coefficient μ 2 of the friction member 5 with respect to the paper sheet P is the paper sheet P.
When the friction coefficient between them is μ 3 , they are set to satisfy the relationship of μ 1 > μ 2 > μ 3 .
次に上記構成の紙葉分離装置による紙葉の分離，繰出し
動作を説明する。Next, the separating and feeding operation of the sheet by the sheet separating apparatus having the above-mentioned configuration will be described.
第２図の如くカセット15内の載置板16上に堆積収納され
た紙葉Ｐは、載置板16の下面に設けたスプリング17によ
り、摩擦部材５の給紙方向手前において給紙ローラ２に
圧接する様に配置される。As shown in FIG. 2, the paper sheets P accumulated and stored on the mounting plate 16 in the cassette 15 are moved by the spring 17 provided on the lower surface of the mounting plate 16 to the feeding roller 2 before the friction member 5 in the paper feeding direction. It is arranged so as to press against.
紙葉Ｐを繰出す前には、給紙ローラ２はその弦部2bが紙
葉Ｐ及び摩擦部材５に相対した状態にある。この状態で
は、紙葉Ｐ及び摩擦部材５は補助ローラ４に圧接してい
る。そして図示しない駆動機構により回転軸１を回転さ
せて給紙ローラ２を回転させる。その際、補助ローラ４
は回転軸１に回動自在に取着されている為、紙葉Ｐを繰
出したり紙葉Ｐの向きを変えたりすることはない。Before feeding the paper sheet P, the chord portion 2b of the paper feed roller 2 is in a state of facing the paper sheet P and the friction member 5. In this state, the paper sheet P and the friction member 5 are in pressure contact with the auxiliary roller 4. Then, the rotation shaft 1 is rotated by a drive mechanism (not shown) to rotate the paper feed roller 2. At that time, the auxiliary roller 4
Is rotatably attached to the rotary shaft 1, it does not feed the paper sheet P or change the direction of the paper sheet P.
給紙ローラ２が回転してその円弧部2aに最上部の紙葉Pa
が圧接すると、紙葉Paは円弧部2aと摩擦部材５間を通っ
て繰出される。その際、複数の紙葉が重なった状態で円
弧部2aと摩擦部材５間を通過しようとすると、上述の如
き摩擦係数の関係により二枚目以下の紙葉は停止し、よ
って最上部の紙葉Paが一枚だけ分離されて繰出されるこ
とになる。しかも摩擦部材５が双方の円弧部2aに常に均
等な圧力で圧接している為、紙葉Paはスキューすること
なく確実に分離されて繰出される。The paper feed roller 2 rotates so that the uppermost paper sheet Pa is placed on the arc portion 2a.
When is pressed, the paper sheet Pa is fed out between the arc portion 2a and the friction member 5. At this time, if a plurality of sheets of paper are attempted to pass between the circular arc portion 2a and the friction member 5 in a state of being overlapped with each other, the second and subsequent sheets of paper stop due to the relationship of the friction coefficient as described above, so that the uppermost paper Only one leaf Pa is separated and fed out. Moreover, since the friction member 5 is constantly pressed against both arc portions 2a with a uniform pressure, the paper sheet Pa is reliably separated and delivered without skewing.
上述の様に給紙ローラ２が一回転するごとに、紙葉Ｐを
一枚ずつ分離されて繰出される。又動作を停止させた時
には、給紙ローラ２は、その弦部2bが紙葉Ｐに相対した
状態、つまり給紙ローラ２に紙葉Ｐが圧接しない状態で
停止する様に制御される。As described above, each time the paper feed roller 2 makes one rotation, the paper sheet P is separated and fed out one by one. When the operation is stopped, the paper feed roller 2 is controlled so as to stop in a state where the chord portion 2b of the paper feed roller 2 faces the paper sheet P, that is, the paper sheet P is not pressed against the paper feed roller 2.
更に補助ローラ４を設けたことにより、給紙ローラ２の
円弧部2aが紙葉Ｐに圧接する瞬間の衝撃が抑えられる。Further, by providing the auxiliary roller 4, the impact at the moment when the circular arc portion 2a of the sheet feeding roller 2 comes into pressure contact with the sheet P is suppressed.
〈考案の効果〉 以上述べた様に本考案の紙葉分離装置によれば、補助ロ
ーラを二個の給紙ローラの間に設け、補助ローラの径を
給紙ローラの円弧部の径より小さく且つ給紙ローラの弦
部の径より大きく形成したことのより、給送ローラの回
転時に紙葉が円弧部に接しているときには紙葉の給送、
紙葉が補助ローラに接しているときには紙葉の給送停止
の二つの動作を自動的に行う、また、給紙ローラの円弧
部が最上部の紙葉に圧接する瞬間の衝撃を抑制すること
ができ、さらに、最上部の紙葉が補助ローラの周壁と一
致しているため、給紙ローラが紙葉に圧接する瞬間の力
の働く方向を紙葉の給送方向にほぼ一致させることがで
きるため、多数枚堆積させた紙葉を一枚ずつ確実に分離
するとともに、二個の給紙ローラは摩擦部材をその円弧
部に均等に圧接させられるので、スキューすることなく
繰出すことができる。<Effect of Device> As described above, according to the paper sheet separator of the present invention, the auxiliary roller is provided between the two paper feed rollers, and the diameter of the auxiliary roller is smaller than the diameter of the arc portion of the paper feed roller. In addition, since the diameter of the chord portion of the paper feed roller is made larger than that of the chord portion of the paper feed roller, when the paper sheet is in contact with the circular arc portion when the feed roller is rotated, the paper sheet is fed,
When the sheet is in contact with the auxiliary roller, it automatically performs two operations of stopping the feeding of the sheet, and also suppresses the impact at the moment when the arc portion of the sheet feeding roller presses against the uppermost sheet. In addition, since the uppermost paper sheet is aligned with the peripheral wall of the auxiliary roller, the direction in which the force acts at the moment when the paper feed roller is pressed against the paper sheet can be made to approximately coincide with the paper sheet feeding direction. Therefore, a large number of stacked paper sheets can be reliably separated one by one, and the two paper feed rollers can evenly press the friction member against its arcuate portion, so that the paper can be delivered without skewing. .
第１図は、給紙方向手前から見た、一部を断面図とした
本考案の紙葉分離装置の概略図、 第２図は、本考案の紙葉分離装置の側面概略図、 第３図は、従来例の側断面図、 第４図は、従来例の平面図である。 １……回転軸,2……給紙ローラ,2a……円弧部,2b……弦
部,4……補助ローラ,5……摩擦部材,P,Pa……紙葉。FIG. 1 is a schematic view of a paper sheet separating apparatus of the present invention, which is a partial cross-sectional view seen from the front in the paper feeding direction, and FIG. 2 is a schematic side view of the paper sheet separating apparatus of the present invention, FIG. 4 is a side sectional view of the conventional example, and FIG. 4 is a plan view of the conventional example. 1 ... Rotary axis, 2 ... Paper feed roller, 2a ... Arc section, 2b ... String section, 4 ... Auxiliary roller, 5 ... Friction member, P, Pa ... Paper sheet.
Claims (1)
ーラと該給紙ローラに圧接させた摩擦部材間を通すこと
により、一枚ずつ分離して繰出す紙葉分離装置におい
て、周壁に円弧部と該円弧部の一部を切欠した弦部とを
形成した同一形状の二個の給紙ローラを、互いに間隔を
設けた状態で且つ前記弦部の向きを一致させた状態で一
本の回転軸に固定するとともに、該回転軸の前記二個の
給紙ローラ間に前記給紙ローラの円弧部の径より小さく
且つ前記給紙ローラの弦部の径より大きい径の補助ロー
ラを回転自在に取着し、 摩擦部材を、前記二個の給紙ローラの中間点に相当する
一点に突起を設けた支持部材に取着し、前記支持部材の
前記突起を一点で加圧することにより、前記摩擦部材を
前記二個の給紙ローラの円弧部に均等に圧接させること
を特徴とする紙葉分離装置。1. A paper sheet separating device for separating and feeding out a plurality of paper sheets by feeding them between a rotating paper feeding roller and a friction member pressed against the paper feeding roller. Two paper feed rollers of the same shape in which a circular arc portion and a chord portion in which a part of the circular arc portion is cut are formed on the peripheral wall in a state in which they are spaced from each other and the chord portions are aligned in the same direction. An auxiliary roller fixed to one rotating shaft and having a diameter smaller than the diameter of the arc portion of the sheet feeding roller and larger than the diameter of the chord portion of the sheet feeding roller between the two sheet feeding rollers of the rotating shaft. Rotatably attach the friction member to a support member having a protrusion at one point corresponding to the midpoint of the two paper feed rollers, and press the protrusion of the support member at one point. To evenly press the friction member against the arc portions of the two paper feed rollers. A paper sheet separation device characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988079258U JPH0711058Y2 (en) | 1988-06-15 | 1988-06-15 | Paper separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988079258U JPH0711058Y2 (en) | 1988-06-15 | 1988-06-15 | Paper separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH022329U JPH022329U (en) | 1990-01-09 |
| JPH0711058Y2 true JPH0711058Y2 (en) | 1995-03-15 |
Family
ID=31304141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988079258U Expired - Lifetime JPH0711058Y2 (en) | 1988-06-15 | 1988-06-15 | Paper separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0711058Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3667277B2 (en) * | 2001-11-15 | 2005-07-06 | キヤノン株式会社 | Paper feeding device and image forming apparatus provided with the device |
| KR100667781B1 (en) * | 2004-12-01 | 2007-01-11 | 삼성전자주식회사 | Paper feeding apparatus and image forming apparatus adopting the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212535A (en) * | 1982-06-02 | 1983-12-10 | Olympus Optical Co Ltd | Manuscript separating mechanism in automatic manuscript feeder |
| JPS61145735U (en) * | 1985-02-28 | 1986-09-08 | ||
| JPS61277531A (en) * | 1985-05-31 | 1986-12-08 | Canon Inc | Manuscript transfer mechanism |
-
1988
- 1988-06-15 JP JP1988079258U patent/JPH0711058Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH022329U (en) | 1990-01-09 |
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