JP2654595B2 - Paper feeder - Google Patents
Paper feederInfo
- Publication number
- JP2654595B2 JP2654595B2 JP7909189A JP7909189A JP2654595B2 JP 2654595 B2 JP2654595 B2 JP 2654595B2 JP 7909189 A JP7909189 A JP 7909189A JP 7909189 A JP7909189 A JP 7909189A JP 2654595 B2 JP2654595 B2 JP 2654595B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- paper
- sheet feeding
- guide
- separation edge
- 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
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、給紙台上に積載された用紙を１枚ずつ安定
して供給するための給紙装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet feeding device for stably feeding sheets stacked on a sheet feeding table one by one.
昇降可能な給紙台上に積層された用紙を１枚ずつ供給
する従来の給紙装置としては、第３図に示すように、用
紙の供給側に設けられた分離用エッジ１に沿って昇降可
能な給紙台２上に積層された用紙Ｐの最上位の用紙を、
回転する吸着ドラム３に吸着して供給する装置が知られ
ており、分離用エッジ１と吸着ドラム３の間の隙間の給
紙口４は用紙が１枚強入るように調整されており、吸着
された用紙は給紙口４を通過して吸着ドラム３に沿って
湾曲したガイド５に案内され、吸着ドラム３から用紙Ｐ
の１枚の厚さ程度の間隔をあけて取り付けられた反転ロ
ーラ６により、１枚ずつ分離し供給されていた。2. Description of the Related Art As a conventional sheet feeding apparatus for feeding stacked sheets one by one on a vertically movable sheet feeding table, as shown in FIG. 3, the sheet feeding apparatus moves up and down along a separation edge 1 provided on a sheet feeding side. The uppermost sheet of the sheet P stacked on the possible sheet feeder 2 is
A device that sucks and supplies the rotating suction drum 3 is known, and a paper feed port 4 in a gap between the separation edge 1 and the suction drum 3 is adjusted so that a single sheet of paper is inserted. The fed sheet passes through a paper feed port 4 and is guided by a curved guide 5 along the suction drum 3, and the paper P
The sheets were separated and supplied one by one by a reversing roller 6 attached at an interval of about one sheet.
しかしながら、前記従来の給紙装置では、吸着ドラム
３の真円度が不良であったり、吸着ドラム３の外周面の
軸方向と分離用エッジ１との間の平行度が出ていない時
などには、用紙の複数枚が同時に給紙口４に入ったり、
用紙の姿勢が乱れたりし、ガイド５はそのまま用紙を案
内するものであったために用紙がガイド５にくさび状に
詰まってしまうことがあり、安定した給紙を行うことが
できなかった。However, in the conventional paper feeding device, when the roundness of the suction drum 3 is poor or when the parallelism between the axial direction of the outer peripheral surface of the suction drum 3 and the separating edge 1 is not obtained, for example. Means that multiple sheets of paper enter the paper feed port 4 at the same time,
The guide 5 guided the paper as it was because the posture of the paper was disturbed, and the paper could be jammed in the guide 5 in a wedge shape, and stable paper feeding could not be performed.
本発明は、用紙を１枚ずつ、しかもその姿勢を修正
し、確実に安定して供給することができる給紙装置を提
供することを目的とするものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a sheet feeding device capable of feeding a sheet one by one, correcting its posture, and reliably and stably feeding the sheet.
本発明は、用紙供給側に設けられた分離用エッジに沿
って昇降可能な給紙台上に積載された用紙を、回転する
吸着ドラムに吸着して供給するようにした給紙装置にお
いて、前記分離用エッジの頂端を用紙供給方向に向かっ
て低く傾斜させた形状とし、該分離用エッジの用紙供給
側に隣接させて頂端を前記吸着ドラムに近接させ前記分
離用エッジに向かって直線上に低く傾斜させた形状のさ
ばきガイドを設けたことを特徴とする給紙装置である。The present invention is directed to a sheet feeding device configured to adsorb a sheet stacked on a sheet feeding table that can be moved up and down along a separation edge provided on a sheet feeding side by sucking the sheet onto a rotating suction drum. The top end of the separation edge is inclined downward toward the paper supply direction, and the top end is brought close to the suction drum and the top end is lowered linearly toward the separation edge adjacent to the paper supply side of the separation edge. A sheet feeding device provided with a separating guide having an inclined shape.
上記構成の本発明では、給紙台上に積載された用紙
は、その最上位の用紙から回転する吸着ドラムによって
分離用エッジの間の給紙口を通ってさばきガイドに当た
り、姿勢の乱れは修正され、さばきガイドの傾斜によっ
てその方向が転換される。その時、複数枚の用紙が同時
に送られてきた場合には、さばきガイドの傾斜が直線状
であるために、当たった時に用紙に互いにズレが生じて
１枚ずつ分離され（第２図参照）、同時に用紙の姿勢の
乱れも修正され、１枚ずつさばきガイドに沿って供給さ
れてゆく。In the present invention having the above-described configuration, the paper stacked on the paper feed table passes through the paper feed port between the separating edges by the suction drum that rotates from the uppermost paper and hits the separation guide, and the disturbance of the posture is corrected. The direction is changed by the inclination of the judgment guide. At this time, if a plurality of sheets are sent at the same time, the sheets are separated one by one due to deviation from each other when the sheets hit, because the inclination of the sorting guide is linear (see FIG. 2). At the same time, the disturbance of the posture of the paper is corrected, and the paper is supplied one by one along the separating guide.
本発明の一実施例を第１図を参照しながら説明すれ
ば、用紙Ｐを積載する給紙台２は、その用紙供給側に設
けられた分離用エッジ11に沿って昇降可能であり、用紙
Ｐの最上位の用紙を吸着して供給するための吸着ドラム
３が、分離用エッジ11との間の複数枚の用紙が通過する
ことができる給紙口４を隔てて回転可能に配備されてい
る。One embodiment of the present invention will be described with reference to FIG. 1. A sheet feeding table 2 on which sheets P are stacked can move up and down along a separation edge 11 provided on the sheet supply side. An adsorption drum 3 for adsorbing and supplying the uppermost sheet of P is rotatably provided with a sheet supply port 4 through which a plurality of sheets can pass between the sheet and the separation edge 11. I have.
分離用エッジ11は、図示例のように、その頂端を用紙
供給方向に向かって低く傾斜させた形状とし、分離用エ
ッジ11の用紙供給側に隣接してさばきガイド15が設けら
れている。さばきガイド15は、その頂端を吸着ドラム３
に用紙１枚分程度の隙間をもって近接させて分離用エッ
ジ11に向かって直線状に低くなるように用紙Ｐの供給方
向に対し角度θで傾斜させた形状としてある。As shown in the example of the drawing, the separating edge 11 has a shape in which the top end is inclined downward toward the sheet supply direction, and a separating guide 15 is provided adjacent to the separating edge 11 on the sheet supply side. The top end of the separation guide 15 is
The sheet P is inclined at an angle θ with respect to the supply direction of the sheet P so that the sheet P is lowered linearly toward the separation edge 11 with a gap of about one sheet.
また、さばきガイド15の頂端付近に、吸着ドラム３か
ら用紙Ｐの１枚の厚さ程度間隔をあけて反転ローラ６を
設けることが好ましく、用紙の供給を一層確実にするこ
とができる。Further, it is preferable to provide a reversing roller 6 near the top end of the separation guide 15 at an interval of about one thickness of the sheet P from the suction drum 3, so that the supply of the sheet can be further ensured.
しかして、給紙台２上に積載された用紙Ｐは給紙台２
によって分離用エッジ11に沿って上昇し、回転する吸着
ドラム３により用紙が供給されるが、複数枚の用紙が同
時に給紙口４を通過した時は、第２図に示すように、用
紙はさばきガイド15に当たり、その傾斜によって方向が
転換されると同時に、傾斜は直線状でありさばきガイド
15と分離用エッジ11の間の下部が広くなっているため、
用紙のズレが生じて１枚ずつ分離され、また用紙の姿勢
の乱れも修正され、１枚ずつさばきガイド15を出て反転
ローラ６を経て供給されてゆく。Thus, the paper P stacked on the paper feed table 2 is
The paper is supplied by the suction drum 3 which rises along the separating edge 11 and rotates, but when a plurality of papers pass through the paper feed port 4 at the same time, as shown in FIG. At the same time, the direction is changed by the inclination, and the inclination is linear,
Because the lower part between 15 and the separating edge 11 is wider,
The sheets are separated one by one due to the deviation of the sheets, and the disturbance of the posture of the sheets is also corrected. The sheets exit the separating guide 15 one by one and are fed through the reversing roller 6.
なお、さばきガイド15の傾斜角度θは、給紙口４を通
過した用紙にくさび効果を生じさせず、かつ用紙のズレ
幅を最大にするように設定する。１例として、サイズ15
0mm×70mmで厚さ0.075mm,重さ0.56gの用紙を集積し、外
径130mmφの吸着ドラムを使用して給紙した時の実験で
は、さばきガイド15の傾斜角度θは20゜程度、また分離
エッジ11とさばきガイド15との間の角度θ２は約130
゜、分離エッジ11頂端の傾斜角度θ３は約60゜であった
（第２図参照）。Note that the inclination angle θ of the separating guide 15 is set so that a wedge effect is not generated on the sheet passing through the sheet feeding port 4 and the deviation width of the sheet is maximized. As an example, size 15
In an experiment in which paper sheets of 0 mm × 70 mm, thickness of 0.075 mm, and weight of 0.56 g were collected and fed using a suction drum having an outer diameter of 130 mmφ, the inclination angle θ of the separating guide 15 was about 20 °, and The angle θ 2 between the separation edge 11 and the separation guide 15 is about 130
DEG, the inclination angle theta 3 of separating edge 11 apices was about 60 degrees (see FIG. 2).
以上述べたように本発明による給紙装置は、供給され
る用紙が、さばきガイドの直線傾斜部に当たって用紙の
乱れは修正され、用紙が複数枚同時に送られる時は用紙
にズレが生じて１枚ずつ分離され、紙詰まりや重送を起
こすことなく、１枚ずつ確実に安定した供給を行うこと
ができる。As described above, in the paper feeding apparatus according to the present invention, the supplied paper hits the linearly inclined portion of the sorting guide, and the turbulence of the paper is corrected. Each sheet is separated one by one, and a stable supply can be reliably performed one by one without causing a paper jam or a double feed.
第１図は本発明の一実施例を示す要部の概要図、第２図
は給紙時における作用説明図、第３図は従来例を示す要
部の概要図である。 1,11……分離用エッジ、２……給紙台、３……吸着ドラ
ム、４……給紙口、５……ガイド、６……反転ローラ、
15……さばきガイド、Ｐ……用紙。FIG. 1 is a schematic view of a main part showing one embodiment of the present invention, FIG. 2 is an explanatory diagram of an operation at the time of sheet feeding, and FIG. 3 is a schematic view of a main part showing a conventional example. 1, 11: Separation edge, 2: Paper feed table, 3: Suction drum, 4: Paper feed port, 5: Guide, 6: Reversing roller,
15… Judgment guide, P …… Paper.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長島 常夫 東京都文京区小石川４丁目14番12号 共 同印刷株式会社内 (72)発明者 神宮 秀司 東京都文京区小石川４丁目14番12号 共 同印刷株式会社内 (72)発明者 可部 敦哉 東京都文京区小石川４丁目14番12号 共 同印刷株式会社内 (56)参考文献 特開 昭56−3239（ＪＰ，Ａ) 実開 昭64−549（ＪＰ，Ｕ) 実公 昭44−8983（ＪＰ，Ｙ１) ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Tsuneo Nagashima 4- 14-12 Koishikawa, Bunkyo-ku, Tokyo Inside the Printing Co., Ltd. (72) Inventor Shuji Jingu 4- 14-12 Koishikawa, Bunkyo-ku, Tokyo Inside the Printing Company (72) Inventor Atsushi Kabe 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Joint printing Company (56) References JP-A-56-3239 (JP, A) -549 (JP, U) Jiko 44-8983 (JP, Y1)
Claims (1)
って昇降可能な給紙台上に積載された用紙を、回転する
吸着ドラムに吸着して供給するようにした給紙装置にお
いて、前記分離用エッジの頂端を用紙供給方向に向かっ
て低く傾斜させた形状とし、該分離用エッジの用紙供給
側に隣接させて頂端を前記吸着ドラムに近接させ前記分
離用エッジに向かって直線上に低く傾斜させた形状のさ
ばきガイドを設けたことを特徴とする給紙装置。1. A sheet feeding device configured to adsorb and feed a sheet stacked on a sheet feeding table that can move up and down along a separation edge provided on a sheet feeding side to a rotating suction drum. The top end of the separation edge is inclined downward toward the sheet supply direction, and the top end is close to the suction drum and the top end is adjacent to the sheet supply side of the separation edge and is linearly toward the separation edge. A sheet feeding device provided with a separating guide having a low inclination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7909189A JP2654595B2 (en) | 1989-03-30 | 1989-03-30 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7909189A JP2654595B2 (en) | 1989-03-30 | 1989-03-30 | Paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02255440A JPH02255440A (en) | 1990-10-16 |
| JP2654595B2 true JP2654595B2 (en) | 1997-09-17 |
Family
ID=13680215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7909189A Expired - Lifetime JP2654595B2 (en) | 1989-03-30 | 1989-03-30 | Paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2654595B2 (en) |
-
1989
- 1989-03-30 JP JP7909189A patent/JP2654595B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02255440A (en) | 1990-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090530 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |