JPH08635B2 - Paper feeder - Google Patents

Paper feeder

Info

Publication number
JPH08635B2
JPH08635B2 JP1037231A JP3723189A JPH08635B2 JP H08635 B2 JPH08635 B2 JP H08635B2 JP 1037231 A JP1037231 A JP 1037231A JP 3723189 A JP3723189 A JP 3723189A JP H08635 B2 JPH08635 B2 JP H08635B2
Authority
JP
Japan
Prior art keywords
paper
roller
feed roller
double feed
feed
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
Application number
JP1037231A
Other languages
Japanese (ja)
Other versions
JPH02215627A (en
Inventor
和巳 上原
正寛 寺澤
友昭 岩船
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nagano Japan Radio Co Ltd
Original Assignee
Nagano Japan Radio Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nagano Japan Radio Co Ltd filed Critical Nagano Japan Radio Co Ltd
Priority to JP1037231A priority Critical patent/JPH08635B2/en
Publication of JPH02215627A publication Critical patent/JPH02215627A/en
Publication of JPH08635B2 publication Critical patent/JPH08635B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は重ねた複数枚の原稿等を一枚単位で順次給紙
するファクシミリ等に利用できる給紙装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a sheet feeding device that can be used for a facsimile or the like that sequentially feeds a plurality of stacked originals in units of one sheet.

〔従来技術及び課題〕[Prior art and problems]

従来、重ねた複数枚の原稿等を一枚単位で順次給紙で
きるようにした給紙装置は知られている(特開昭59-533
34号公報参照)。第5図に、この種の給紙装置50を示
す。図中、51は原稿等の複数枚のP…をセット可能なト
レーであり、このトレー51の上方には送紙機構52を配設
し、また、前方には重送防止機構53を配設する。送紙機
構52はスプリング54により付勢され、かつ紙P…の上面
に圧接する送紙ローラ55を備えるとともに、他方、重送
防止機構53は上側に配した回転ローラ56と下側に配した
固定ローラ57を備える。よって、送紙ローラ55が回転す
れば、トレー51にセットした紙P…は上から一枚毎順次
回転ローラ56と固定ローラ57間に送り込まれ、この送り
込まれた紙Pは回転する回転ローラ56により、さらに前
方へ移送される。この際、二枚以上送り込まれた場合に
は固定ローラ57によって一番上の紙以外の紙P…の重送
が防止される。
2. Description of the Related Art Conventionally, there is known a sheet feeding device capable of sequentially feeding a plurality of stacked originals and the like one by one (Japanese Patent Laid-Open No. 59-533).
No. 34). FIG. 5 shows a sheet feeding device 50 of this type. In the figure, reference numeral 51 is a tray on which a plurality of sheets P such as originals can be set, a paper feed mechanism 52 is arranged above the tray 51, and a double feed prevention mechanism 53 is arranged in the front. To do. The paper feed mechanism 52 is provided with a paper feed roller 55 which is biased by a spring 54 and presses against the upper surface of the paper P ..., On the other hand, the double feed prevention mechanism 53 is arranged on the upper side and a lower roller 56. A fixed roller 57 is provided. Therefore, when the paper feeding roller 55 is rotated, the papers P set on the tray 51 are sequentially fed one by one from the top between the rotary roller 56 and the fixed roller 57, and the fed paper P is rotated. Is transferred further forward. At this time, when two or more sheets are fed, the fixed roller 57 prevents the double feeding of the sheets P ... Other than the uppermost sheet.

ところで、このような従来の給紙装置50は、送紙機構
52と重送防止機構53の二つの機構が独立し、かつ個別に
機能するため、特に紙のセッテイング機構の構造が複雑
となり、大型化と高コスト化を招く不具合があった。
By the way, such a conventional paper feeding device 50 has a paper feeding mechanism.
Since the two mechanisms, 52 and the multi-feed preventing mechanism 53, are independent and function individually, the structure of the paper setting mechanism is particularly complicated, resulting in an increase in size and cost.

本発明はこのような従来技術に存在する不具合を解消
した給紙装置の提供を目的とするものである。
It is an object of the present invention to provide a sheet feeding device that eliminates the above-mentioned problems existing in the conventional technology.

〔課題を解決するための手段〕[Means for solving the problem]

本発明は、回転して給紙を行う上側に配した給紙ロー
ラ2と、前記給紙ローラ2の軸方向一部に接し、かつ少
なくとも給紙方向に対し停止して紙P…の重送を防止す
る下側に配した重送防止部材3aを備えてなる給紙装置1
を構成するに際して、押板片20に切欠凹部22を形成する
ことにより両側に押片20aと20bを設けるとともに、この
切欠凹部22に前記重送防止部材3aを収容することにより
前記給紙ローラ2の軸方向残部であって、給紙ローラ2
と重送防止部材3aが接する位置よりも後方の位置に各押
片20aと20bが接するように付勢される湾曲させて形成し
た押部材4を有する押圧機構5と、押部材4の上方に配
することにより、供給される紙P…の座屈を阻止するガ
イド機構6と、押部材4とガイド機構6間に配するとと
もに、押部材4と給紙ローラ2が接する略接線方向に紙
P…をガイドし、かつセットした紙P…の先端部を前記
押部材4と前記給紙ローラ2間に斜め上方から供給可能
なトレー部23とを備えてなることを特徴とする。
According to the present invention, the paper feed roller 2 disposed on the upper side for rotating and feeding paper is in contact with a part of the paper feed roller 2 in the axial direction, and is stopped at least in the paper feed direction, and the paper P is double-fed. Sheet feeding device 1 including a double-feeding prevention member 3a disposed on the lower side to prevent sheet feeding
In forming the above, the press plate piece 20 is provided with cutout recesses 22 to provide the press pieces 20a and 20b on both sides, and the cutout recess 22 accommodates the multi-feed preventing member 3a, whereby the feed roller 2 Of the paper feed roller 2
A pressing mechanism 5 having a curved pressing member 4 that is biased so that the pressing pieces 20a and 20b contact each other at a position rearward of a position where the pressing member 4a and the double feed preventing member 3a contact each other; The guide mechanism 6 for preventing the buckling of the supplied paper P by arranging it is arranged between the pressing member 4 and the guide mechanism 6, and the paper is arranged in a substantially tangential direction in which the pressing member 4 and the feed roller 2 are in contact with each other. It is characterized in that it is provided with a tray portion 23 which guides P ... And which can feed the front end portion of the set paper P ... between the pressing member 4 and the paper feeding roller 2 from diagonally above.

この場合、最適な実施形態により、給紙ローラ2は給
紙方向に回動が許容される一方向クラッチを介して支持
するとともに、重送防止部材3aは給紙方向に対し反対方
向に回動が許容される一方向クラッチを介して支持され
る重送防止ローラ3により構成する。
In this case, according to the optimum embodiment, the paper feed roller 2 is supported via a one-way clutch that is allowed to rotate in the paper feed direction, and the double feed prevention member 3a rotates in the opposite direction to the paper feed direction. The double feed prevention roller 3 is supported via a one-way clutch that allows

〔作用〕[Action]

次に、本発明の作用について説明する。 Next, the operation of the present invention will be described.

本発明に係る給紙装置1によれば、紙P…の先端部は
給紙ローラ2と重送防止ローラ3の間に斜め上方からセ
ットされるとともに、紙P…はガイド機構6によって押
部材4と給紙ローラ2が接する略接線方向にガイドされ
る。この際、セットされた紙P…は押部材4の押圧作用
によって給紙ローラ2に圧接するため、同ローラ2が回
転すれば、同ローラ2に接する一番上の紙Pの給紙が行
われる。なお、このとき複数枚の紙P…が給紙されよう
としても重送防止ローラ3は紙Pの給紙方向には回転し
ないので、重送防止ローラ3に接している紙Pは停滞し
たままになり、結局、分離された一番上の紙Pのみが給
紙される。このように、給紙ローラ2は送紙機能と重送
防止機能を兼用し、また、湾曲させて形成した押部材4
は紙P…を給紙ローラ2に圧接させ送紙機能を補助す
る。
According to the paper feeding device 1 of the present invention, the front end of the paper P ... Is set obliquely from above between the paper feeding roller 2 and the double feed prevention roller 3, and the paper P ... 4 and the paper feed roller 2 are guided in a substantially tangential direction. At this time, the set papers P are brought into pressure contact with the paper feed roller 2 by the pressing action of the pressing member 4. Therefore, when the roller 2 rotates, the top paper P in contact with the roller 2 is fed. Be seen. At this time, even if a plurality of sheets of paper P ... Are fed, the double feed prevention roller 3 does not rotate in the paper feed direction of the paper P, so the paper P in contact with the double feed prevention roller 3 remains stagnant. In the end, only the separated top paper P is fed. In this way, the paper feed roller 2 has both a paper feed function and a double feed prevention function, and the curved pressing member 4 is formed.
Presses the paper P ... to the paper feed roller 2 to assist the paper feeding function.

〔実施例〕〔Example〕

以下には、本発明に係る好適な実施例を挙げ、図面に
基づき詳細に説明する。
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

まず、給紙装置1の構造について第1図〜第4図を参
照して説明する。
First, the structure of the sheet feeding device 1 will be described with reference to FIGS.

11はシャーシであり、このシャーシ11には減速ギア機
構12及びモータ13によって回転せしめられるシャフト14
を枢支する。また、シャフト14は一方向クラッチを介し
て給紙ローラ2を支持する。同クラッチの機能によって
シャフト14が給紙方向(第1図中、反時計方向)へ回転
すれば、給紙ローラ2も同方向に回転し、給紙機能を発
揮するとともに、シャフト14の回転を停止し、かつ前方
の移送ローラ15等により紙Pが引っ張られた場合、給紙
ローラ2は給紙方向に回動が許容されるため自由に追従
する。
Reference numeral 11 denotes a chassis, and the chassis 11 includes a shaft 14 that is rotated by a reduction gear mechanism 12 and a motor 13.
Pivot. Further, the shaft 14 supports the paper feed roller 2 via a one-way clutch. When the shaft 14 rotates in the paper feeding direction (counterclockwise in FIG. 1) by the function of the clutch, the paper feeding roller 2 also rotates in the same direction to exert the paper feeding function and rotate the shaft 14. When the sheet P is stopped and the sheet P is pulled by the front transfer roller 15 or the like, the sheet feeding roller 2 is allowed to rotate in the sheet feeding direction and thus freely follows.

一方、給紙ローラ2の下方にはシャフト16を固定して
取付け、一方向クラッチを介して重送防止ローラ3を支
持する。同クラッチの機能により、重送防止ローラ3は
給紙方向(第1図中、時計方向)に対しては停止し、紙
Pの重送防止機能を発揮するとともに、給紙方向に対し
反対方向には回動が許容され、例えば紙詰まり等の事態
には紙を逆戻しできる。また、重送防止ローラ3の軸方
向長さは給紙ローラ2の軸方向長さよりも短く形成して
中央部に配置し、その両側部には押片20a、20bを配設す
る。重送防止ローラ3は給紙ローラ2の下端中央に接す
るように配置する。重送防止部材3aは重送防止ローラ3
以外の構成を有する例えば固定ブロック等の利用を妨げ
るものではなく、要は一番上の紙以外の紙P…の移動を
阻止する重送防止機能を備えればよい。なお、シャフト
16の両端部における周面一部はDカットし、このDカッ
ト面をシャーシ11に固定した左右のブラケット17、18に
ネジ止めする(第2図参照)。この場合、ブラケット1
7、18には長孔を形成し、シャフト16の位置調整を行う
ことができる。
On the other hand, a shaft 16 is fixedly attached below the paper feed roller 2, and the double feed prevention roller 3 is supported via a one-way clutch. Due to the function of the clutch, the double feed prevention roller 3 is stopped in the paper feed direction (clockwise in FIG. 1) to perform the double feed prevention function for the paper P, and in the opposite direction to the paper feed direction. Is allowed to rotate, so that the paper can be returned in reverse in the event of a paper jam, for example. Further, the axial length of the double feed prevention roller 3 is formed to be shorter than the axial length of the paper feed roller 2 and arranged in the central portion, and push pieces 20a and 20b are arranged on both side portions thereof. The double feed prevention roller 3 is arranged so as to contact the center of the lower end of the paper feed roller 2. The double feed prevention member 3a is the double feed prevention roller 3
It does not hinder the use of, for example, a fixed block or the like having a configuration other than the above, and in short, it may have a double feed prevention function that prevents movement of the paper P ... Other than the top paper. The shaft
Part of the peripheral surface at both ends of 16 is D-cut, and this D-cut surface is screwed to the left and right brackets 17 and 18 fixed to the chassis 11 (see FIG. 2). In this case, bracket 1
Slots 7 and 18 can be formed to adjust the position of the shaft 16.

他方、重送防止ローラ3の後方には前記ブラケット1
7、18の一端を利用して支軸19を支持し、この支軸19に
板材で形成した押板片20の前端を回動自在に支持する。
押板片20の下面はスプリング21によって上方、即ち、給
紙ローラ2側に付勢され、押圧機構を構成する。また、
押板片20は第2図のように平面視を略矩形状に形成する
とともに、側面視を給紙ローラ側が山形となる弓状に湾
曲させて形成し、前端中央に前記重送防止ローラ3を配
する切欠凹部22を設ける。よって、この切欠凹部22の両
側には一対の押片20a、20b(押部材4)が配され、押片
20a、20bは給紙ローラ2に接する。この接する位置は重
送防止ローラ3が接する位置よりも後方に位置する。
On the other hand, the bracket 1 is provided behind the double feed prevention roller 3.
A support shaft 19 is supported by using one end of each of 7 and 18, and a front end of a pressing plate piece 20 formed of a plate material is rotatably supported on the support shaft 19.
The lower surface of the pressing plate piece 20 is urged upward by the spring 21, that is, toward the paper feed roller 2 side, and constitutes a pressing mechanism. Also,
As shown in FIG. 2, the pressing plate piece 20 is formed in a substantially rectangular shape in a plan view, and is formed by curving the side view into an arc shape having a mountain shape on the paper feed roller side, and the double feed preventing roller 3 is formed at the center of the front end. A notch recess 22 is provided for arranging Therefore, a pair of pushing pieces 20a and 20b (pushing member 4) are arranged on both sides of the notch concave portion 22.
20a and 20b contact the paper feed roller 2. This contacting position is located behind the contacting position of the double feed prevention roller 3.

また、給紙ローラ2と重送防止ローラ3の後方にはガ
イド機構6を配設する。ガイド機構6は紙P…を載置す
る下側のトレー部23と、上側に配するガイドプレート部
24を備える。これにより、紙P…はトレー部23とガイド
プレート部24によってガイドされ、その先端部は給紙ロ
ーラ2と押片20a、20b間にセットされる。また、ガイド
機構6のガイド方向は押片20a、20bと給紙ローラ2が接
する略接線方向に一致するように選定し、紙P…の座屈
を防止する。
A guide mechanism 6 is arranged behind the paper feed roller 2 and the double feed prevention roller 3. The guide mechanism 6 includes a lower tray portion 23 on which the paper P is placed and a guide plate portion disposed on the upper side.
Equipped with 24. As a result, the paper P ... Is guided by the tray portion 23 and the guide plate portion 24, and the leading end portion thereof is set between the paper feed roller 2 and the pressing pieces 20a and 20b. Further, the guide direction of the guide mechanism 6 is selected so as to coincide with a substantially tangential direction in which the pressing pieces 20a, 20b and the paper feed roller 2 are in contact with each other, and the buckling of the paper P ... Is prevented.

次に、給紙装置1の機能について第3図及び第4図を
参照して説明する。
Next, the function of the sheet feeding device 1 will be described with reference to FIGS. 3 and 4.

まず、原稿等の複数枚の紙P…をセットする。この場
合、第3図のように紙P…をトレー部23の上に載せ、そ
のまま差し込めば第4図のように紙P…は押片20a、20b
を下方へ押退け、さらに紙P…の先端が給紙ローラ2と
重送防止ローラ3間の周面に当接して停止する。この
際、紙P…は押片20a、20bの付勢作用によって給紙ロー
ラ2の周面に圧接せしめられる。
First, a plurality of sheets of paper P such as a document are set. In this case, if the paper P ... Is placed on the tray portion 23 as shown in FIG. 3 and is inserted as it is, the paper P ... Is pushed into the pushing pieces 20a, 20b as shown in FIG.
Is pushed downward, and the leading end of the paper P ... Abuts on the peripheral surface between the paper feed roller 2 and the double feed prevention roller 3 to stop. At this time, the paper sheets P are pressed against the peripheral surface of the paper feed roller 2 by the urging action of the pressing pieces 20a and 20b.

そして、第4図において給紙ローラ2を反時計方向へ
回転させれば、接している一番上の紙Pが給紙ローラ2
の反対側へ移送される。この際、複数枚送り込まれよう
としても、重送防止ローラ3によって、一番上の紙以外
は紙P…はその移動が阻止される。なお、このような機
能を発揮させるため、給紙ローラ2と重送防止ローラ3
間の摩擦係数は、紙P…の相互間の摩擦係数よりも大き
く、かつ紙Pと給紙ローラ2間の摩擦係数よりも小さく
選定する。
Then, in FIG. 4, when the paper feed roller 2 is rotated counterclockwise, the uppermost paper P in contact is the paper feed roller 2
Is transferred to the other side. At this time, even if a plurality of sheets are to be fed, the double feed prevention roller 3 prevents the movement of the papers P ... Other than the topmost paper. In order to exert such a function, the paper feed roller 2 and the double feed prevention roller 3
The friction coefficient between them is selected to be larger than the friction coefficient between the papers P ... And smaller than the friction coefficient between the paper P and the paper feed roller 2.

以上、実施例について詳細に説明したが、本発明はこ
のような実施例に限定されるものではなく、細部の構
成、形状、配置、素材等において、本発明の要旨を逸脱
しない範囲で任意に変更できる。
Although the embodiments have been described in detail above, the present invention is not limited to such embodiments, and the details of the configuration, shape, arrangement, materials, etc. can be arbitrarily changed without departing from the scope of the present invention. Can be changed.

〔発明の効果〕〔The invention's effect〕

このように、本発明に係る給紙装置は、押板片に切欠
凹部を形成することにより両側に押片を設けるととも
に、この切欠凹部に前記重送防止部材を収容することに
より前記給紙ローラの軸方向残部であって、給紙ローラ
と重送防止部材が接する位置よりも後方の位置に各押片
が接するように付勢される湾曲させて形成した押部材を
有する押圧機構と、押部材の上方に配することにより、
供給される紙を座屈を阻止するガイド機構と、押部材と
ガイド機構間に配するとともに、押部材と給紙ローラが
接する略接線方向に紙をガイドし、かつセットした紙の
先端部を前記押部材と前記給紙ローラ間に斜め上方から
供給可能なトレー部とを備えてなるため、構成の簡略化
による大幅なコストダウンと小型化を達成できるととも
に、故障やトラブルの低減、さらには、円滑かつ安定し
た給紙を行うことができるという顕著な効果を奏する。
As described above, in the sheet feeding device according to the present invention, the notch recess is formed in the pressing plate piece to provide the pressing pieces on both sides, and by accommodating the double feed preventing member in the notch recess, the sheet feeding roller is provided. And a pressing mechanism having a curved pressing member that is urged so that the pressing pieces come into contact with each other in the axial remaining portion of the sheet feeding roller and the double feed prevention member. By arranging above the member,
The guide mechanism that prevents buckling of the supplied paper and the pressing member and the guide mechanism are arranged, and the paper is guided in a substantially tangential direction in which the pressing member and the paper feed roller are in contact, and the leading end of the set paper is fixed. Since the tray portion that can be fed from diagonally above is provided between the pressing member and the paper feeding roller, a drastic cost reduction and size reduction can be achieved by the simplification of the configuration, and the breakdown and trouble can be reduced. The remarkable effect is that smooth and stable paper feeding can be performed.

【図面の簡単な説明】[Brief description of drawings]

第1図:本発明に係る給紙装置の構成を示す側面図、 第2図:同給紙装置の主要部を示す平面図、 第3図,第4図:同給紙装置の作用を説明する原理的縦
断側面図、 第5図:従来技術に係る給紙装置の原理的側面図、 尚図面中、 1,1a:給紙装置、2:給紙ローラ 3a:重送防止部材、3:重送防止ローラ 4:押部材、5:押圧機構 6:ガイド機構、20:押板片 20a:押片、20b:押片 22:切欠凹部、23:トレー部
FIG. 1 is a side view showing the configuration of a paper feeding device according to the present invention, FIG. 2 is a plan view showing the main parts of the paper feeding device, and FIGS. 3 and 4 are the functions of the paper feeding device. 5 is a side view of the principle of a sheet feeding device according to the related art. In the drawings, 1a is a sheet feeding device, 2: is a sheet feeding roller 3a is a double-feeding prevention member, 3: Double feed prevention roller 4: Push member, 5: Push mechanism 6: Guide mechanism, 20: Push plate piece 20a: Push piece, 20b: Push piece 22: Notch recess, 23: Tray section

フロントページの続き (56)参考文献 特開 昭59−53334(JP,A) 特開 昭57−90333(JP,A) 実開 昭63−190142(JP,U) 実開 昭54−93986(JP,U) 実開 昭64−40652(JP,U)Continuation of the front page (56) Reference JP-A-59-53334 (JP, A) JP-A-57-90333 (JP, A) Actual opening 63-190142 (JP, U) Actual opening 54-93986 (JP , U) Actual development Sho 64-40652 (JP, U)

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】回転して給紙を行う上側に配した給紙ロー
ラ(2)と、前記給紙ローラ(2)の軸方向一部に接
し、かつ少なくとも給紙方向に対し停止して紙(P…)
の重送を防止する下側に配した重送防止部材(3a)を備
えてなる給紙装置において、押板片(20)に切欠凹部
(22)を形成することにより両側に押片(20a)と(20
b)を設けるとともに、この切欠凹部(22)に前記重送
防止部材(3a)を収容することにより前記給紙ローラ
(2)の軸方向残部であって、給紙ローラ(2)と重送
防止部材(3a)が接する位置よりも後方の位置に各押片
(20a)と(20b)が接するように付勢される湾曲させて
形成した押部材(4)を有する押圧機構(5)と、押部
材(4)の上方に配することにより、供給される紙(P
…)の座屈を阻止するガイド機構(6)と、押部材
(4)とガイド機構(6)間に配するとともに、押部材
(4)と給紙ローラ(2)が接する略接線方向に紙(P
…)をガイドし、かつセットした紙(P…)の先端部を
前記押部材(4)と前記給紙ローラ(2)間に斜め上方
から供給可能なトレー部(23)とを備えてなることを特
徴とする給紙装置。
1. A paper feed roller (2) arranged on the upper side for rotating and feeding paper, and a paper which is in contact with a part of the paper feed roller (2) in the axial direction and is stopped at least in the paper feed direction. (P ...)
In a sheet feeding device provided with a double feed preventing member (3a) arranged on the lower side to prevent double feed of the push plate (20a) by forming a cutout recess (22) in the push plate piece (20). ) And (20
By providing b) and accommodating the double feed preventing member (3a) in the cutout recess (22), it is the remaining portion in the axial direction of the paper feed roller (2) and the double feed with the paper feed roller (2). A pressing mechanism (5) having a curved pressing member (4) that is biased so that the pressing pieces (20a) and (20b) contact each other at a position rearward of the position where the prevention member (3a) contacts; , The paper (P) to be supplied by arranging it above the pressing member (4).
The guide mechanism (6) for preventing the buckling of the pushing member (4) is arranged between the pushing member (4) and the guide mechanism (6), and in a substantially tangential direction in which the pushing member (4) and the feed roller (2) are in contact with each other. Paper (P
...) and is provided with a tray portion (23) capable of feeding the front end of the set paper (P ...) Between the pressing member (4) and the paper feed roller (2) from obliquely above. A paper feeding device characterized by the above.
【請求項2】給紙ローラ(2)は給紙方向に回動が許容
される一方向クラッチを介して支持されることを特徴と
する請求項1記載の給紙装置。
2. The paper feeding apparatus according to claim 1, wherein the paper feeding roller (2) is supported via a one-way clutch which is allowed to rotate in the paper feeding direction.
【請求項3】重送防止部材(3a)は給紙方向に対し反対
方向に回動が許容される一方向クラッチを介して支持さ
れる重送防止ローラ(3)であることを特徴とする請求
項1記載の給紙装置。
3. The double feed prevention member (3a) is a double feed prevention roller (3) supported via a one-way clutch which is allowed to rotate in a direction opposite to the sheet feeding direction. The sheet feeding device according to claim 1.
JP1037231A 1989-02-16 1989-02-16 Paper feeder Expired - Fee Related JPH08635B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1037231A JPH08635B2 (en) 1989-02-16 1989-02-16 Paper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1037231A JPH08635B2 (en) 1989-02-16 1989-02-16 Paper feeder

Publications (2)

Publication Number Publication Date
JPH02215627A JPH02215627A (en) 1990-08-28
JPH08635B2 true JPH08635B2 (en) 1996-01-10

Family

ID=12491834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1037231A Expired - Fee Related JPH08635B2 (en) 1989-02-16 1989-02-16 Paper feeder

Country Status (1)

Country Link
JP (1) JPH08635B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309473A1 (en) * 1992-03-24 1993-09-30 Asahi Optical Co Ltd Original document separation device for electrophotographic imager - cooperates with feed roller at entry slot of original feed path to ensure individual feeding of originals

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790333A (en) * 1980-11-27 1982-06-05 Fuji Xerox Co Ltd Paper feed of copier
JPS57137259A (en) * 1981-02-20 1982-08-24 Fuji Xerox Co Ltd Paper-feeding device for duplicating machine
JPS5834464A (en) * 1981-08-25 1983-02-28 Matsushita Graphic Commun Syst Inc Original feeding device
JPS5953334A (en) * 1982-09-16 1984-03-28 Ricoh Co Ltd Sheet feed device
JPS59149248A (en) * 1983-02-15 1984-08-27 Matsushita Electric Ind Co Ltd Paper feeder
JPS63190142U (en) * 1987-05-23 1988-12-07

Also Published As

Publication number Publication date
JPH02215627A (en) 1990-08-28

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