JPH0610058B2 - Automatic paper feeder - Google Patents
Automatic paper feederInfo
- Publication number
- JPH0610058B2 JPH0610058B2 JP6658785A JP6658785A JPH0610058B2 JP H0610058 B2 JPH0610058 B2 JP H0610058B2 JP 6658785 A JP6658785 A JP 6658785A JP 6658785 A JP6658785 A JP 6658785A JP H0610058 B2 JPH0610058 B2 JP H0610058B2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- paper
- feed
- automatic paper
- separation
- 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
- Delivering By Means Of Belts And Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【発明の詳細な説明】 （技術分野） 本発明はフアクシミリ、複写機等の原稿あるいは転写紙
の自動紙送り装置に関する。Description: TECHNICAL FIELD The present invention relates to an automatic paper feeder for originals or transfer paper such as facsimiles and copying machines.
（従来技術） 従来、フアクシミリ装置等に用いられている自動原稿送
り装置（以下ＡＤＦと称す）は原稿分離機構と原稿給紙
機構及ぶ搬送機構から成立つている。このＡＤＦは装置
が大型になり、部品点数も多い。この様な事から第３図
に示す様な原稿分離、給紙及び搬送機構の一部を同一の
軸に設けた機構が提案されている。(Prior Art) Conventionally, an automatic document feeder (hereinafter referred to as ADF) used in a facsimile machine or the like is composed of a document separating mechanism, a document feeding mechanism and a conveying mechanism. This ADF has a large device and a large number of parts. For this reason, a mechanism has been proposed in which a part of the document separating, feeding and conveying mechanism is provided on the same shaft as shown in FIG.
この機構は駆動源にステツピングモーター１９を用い正
転、逆転を利用している。This mechanism uses a stepping motor 19 as a drive source and utilizes forward rotation and reverse rotation.
まずステツピングモーター１９が図中点線の方向に回転
する。すると駆動力はベルト２０、プーリー、ギヤ１
４，２２，１５とそれぞれ点線方向に伝導され、このギ
ヤ１５と同一軸に設けた分離ローラー９、フイードロー
ラー１０を点線の如く駆動する。そしてフイードローラ
ー１０と圧接している搬送ローラー１１は一方向クラツ
チ１８により従動側になつて連れ回りする。First, the stepping motor 19 rotates in the direction of the dotted line in the figure. Then the driving force is belt 20, pulley, gear 1
4, 22 and 15 are respectively conducted in the dotted line direction, and the separating roller 9 and the feed roller 10 provided on the same axis as the gear 15 are driven as shown by the dotted line. The transport roller 11 that is in pressure contact with the feed roller 10 is rotated by the one-way clutch 18 toward the driven side.
この時分離ローラー９を圧接する摩擦ローラー５は原稿
間の摩擦力より少し多めの圧力150ｇが加えられてい
る。このことにより原稿一枚の時は分離ローラー９によ
つて摩擦ローラー５は連れ回りし、多数枚ある時は一番
下の原稿のみ給紙してそれ以上の原稿は摩擦ローラー５
の回転を止め、給紙されない。At this time, the friction roller 5 pressing the separation roller 9 is applied with a pressure of 150 g, which is slightly larger than the friction force between the originals. As a result, when there is one original, the friction roller 5 is rotated by the separating roller 9, and when there are many originals, only the lowermost original is fed and further originals are fed with the friction roller 5.
Rotation is stopped and the paper is not fed.
次にステツピングモーター１９が実線の矢印方向に回転
すると、この駆動力はギヤ１６，２２，１７において実
線矢印方向に伝達される（ギヤ１７において一方向クラ
ツチ１８の働きを受ける）。Next, when the stepping motor 19 rotates in the direction of the solid line arrow, this driving force is transmitted in the direction of the solid line arrow in the gears 16, 22, 17 (the gear 17 receives the action of the one-way clutch 18).
この結果、駆動側と従動側が逆になる。As a result, the driving side and the driven side are reversed.
フイードローラー１０と搬送ローラー１１によつて搬送
された原稿４はその下流側の搬送ローラー対１２によつ
てさらに搬送される。以上の様な機構で原稿は分離、給
紙及び搬送される。The original 4 transported by the feed roller 10 and the transport roller 11 is further transported by the transport roller pair 12 on the downstream side thereof. Documents are separated, fed and conveyed by the mechanism described above.
しかし、第５図に示す様に分離ローラー９は摩擦ローラ
ー５と圧接している以外、他のローラーと接するところ
がない。However, as shown in FIG. 5, the separating roller 9 has no place other than the friction roller 5 in pressure contact with other rollers.
その為、原稿が厚い場合は原稿の中央が図に示す様に圧
板２４に接し、原稿の両端はフイードローラー１０とス
リツプし、それ以上搬送されないという不具合がある。
又薄い原稿の場合は原稿の両端はフイードローラー１０
との摩擦力によつて搬送され、フイードローラー１０と
搬送ローラー１１の圧接部分に喰え込まれる。しかし原
稿中央は浮き上り、しわ、スキユー等の他に搬送時の音
が発生するという不具合がある。Therefore, when the document is thick, the center of the document contacts the pressure plate 24 as shown in the figure, and both ends of the document slip with the feed roller 10 and the document cannot be conveyed any more.
In the case of a thin original, the feed rollers 10 are provided on both sides of the original.
It is conveyed by the frictional force between the feed roller 10 and the conveying roller 11 and is bitten by the pressure contact portion of the feed roller 10 and the conveying roller 11. However, there is a problem that the center of the document is lifted up and wrinkles, skews, and the like, and a sound at the time of conveyance is generated.
尚、第５図において７，８は紙当板である。In addition, in FIG. 5, 7 and 8 are paper contact plates.
この様に従来装置においては搬送性能が不安定であつ
た。As described above, in the conventional apparatus, the transportation performance is unstable.
（目的） 本発明はこの様な従来例の欠点を解消し、給紙搬送性能
を向上させ、且つコスト的に安価な自動紙送り装置を提
供することを目的とする。(Object) It is an object of the present invention to solve the above-mentioned drawbacks of the conventional example, to improve the paper feeding / conveying performance, and to provide an inexpensive automatic paper feeder.
（構成） そのために本発明は、搬送ローラーと同一軸の中央部に
補助コロを設け、且つ分離ローラーを２分割してこの間
に補助コロを配置したことを特徴とするものである。(Structure) Therefore, the present invention is characterized in that an auxiliary roller is provided at the center of the same axis as the conveying roller, and the separating roller is divided into two and the auxiliary roller is arranged between them.
以下本発明の構成を図示の一実施例に基づき説明する。The structure of the present invention will be described below based on an embodiment shown in the drawings.
第１図は本発明に係る装置により、分離、搬送される紙
の状態を示す説明図、第２図は本発明の一実施例に係る
自動紙送り装置の内部機構斜視図、第３図は同、要部
（フイードローラー１０と搬送ローラー１１部分）の正
面図である。FIG. 1 is an explanatory view showing a state of paper separated and conveyed by an apparatus according to the present invention, FIG. 2 is a perspective view of an internal mechanism of an automatic paper feeding apparatus according to an embodiment of the present invention, and FIG. FIG. 3 is a front view of the main part (the portion of the feed roller 10 and the transport roller 11).
本発明においては搬送ローラー１１の軸の中央に搬送ロ
ーラー１１の補助コロ２５を設けたものである。このコ
ロ２５は搬送ローラー１１の外径よりやや大きくし、分
離ローラー９の中央部（ゴム部の無いところ）にくい込
ませる様にしてある。言い換えると、分離ローラーを２
分割し、この間に補助コロ２５を配置している。このこ
とにより第１図に示す様に原稿が厚い場合は圧板２４に
接する前に補助コロ２５に接し、補助コロ２５は搬送ロ
ーラー１１の軸と同一の為、原稿を下方向に搬送する補
助コロ２５の回転（矢印方向）によつてフイードローラ
ー１３と搬送ローラー１１の圧接部分まで原稿は搬送さ
れる。又、原稿が薄い場合は原稿の中央の浮きが補助コ
ロ２５で押される為、原稿が均一な状態で搬送される。
これによりしわ、スキユー、及び搬送時の音が発生しな
くなる。In the present invention, the auxiliary roller 25 of the transport roller 11 is provided at the center of the shaft of the transport roller 11. The roller 25 is slightly larger than the outer diameter of the transport roller 11 so that the roller 25 can be easily inserted into the central portion (where the rubber portion is not present) of the separating roller 9. In other words, 2 separation rollers
It is divided and an auxiliary roller 25 is arranged between them. As a result, as shown in FIG. 1, when the original is thick, it comes into contact with the auxiliary roller 25 before it comes into contact with the pressure plate 24, and since the auxiliary roller 25 is the same as the axis of the conveyance roller 11, the auxiliary roller for conveying the original downward. By rotating 25 (in the direction of the arrow), the document is transported to the pressure contact portion between the feed roller 13 and the transport roller 11. Further, when the original is thin, the floating in the center of the original is pushed by the auxiliary roller 25, so that the original is conveyed in a uniform state.
As a result, wrinkles, skews, and noises during transportation are eliminated.
この様に本発明では、原稿の種類による搬送性能の差は
なくなり、安定した搬送機構にすることが出来る。As described above, according to the present invention, there is no difference in the conveyance performance depending on the type of the original, and a stable conveyance mechanism can be obtained.
（効果） 本発明は以上述べた通りのものであり、本発明に係る自
動紙送り装置によれば、原稿の厚さによる搬送性能の不
良（厚い場合の紙づまり、薄い場合のしわ、スキユー及
び搬送時の音）が解決され、安定した搬送性能が得られ
る。(Effects) The present invention is as described above, and according to the automatic paper feeding device of the present invention, the conveyance performance is poor due to the thickness of the document (paper jam when thick, wrinkle when thin, skew, and (Sound during transportation) is solved, and stable transportation performance can be obtained.
第１図は本発明に係る紙送り装置による紙分離、搬送状
態を示す説明図、第２図は同、一実施例に係る自動紙送
り装置の内部機構を示す斜視図、第３図は同、要部の正
面図、第４図は従来例に係る自動紙送り装置の内部機構
を示す斜視図、第５図は同、分離、搬送状態を示す説明
図である。 ５……摩擦ローラー、９……分離ローラー、１０……フ
イードローラー、１１……搬送ローラー、２５……補助
コロ。FIG. 1 is an explanatory view showing a paper separating and conveying state by a paper feeding device according to the present invention, FIG. 2 is a perspective view showing an internal mechanism of an automatic paper feeding device according to an embodiment, and FIG. 3 is the same. FIG. 4 is a perspective view showing an internal mechanism of an automatic paper feeding device according to a conventional example, and FIG. 5 is an explanatory view showing a separated and conveyed state thereof. 5 ... Friction roller, 9 ... Separation roller, 10 ... Feed roller, 11 ... Conveying roller, 25 ... Auxiliary roller.
Claims (1)
び分離ローラーに圧接され従動する摩擦ローラーからな
る分離機構と、分離ローラーと同一軸に設けられたフイ
ードローラー及びフイードローラーに圧接されている搬
送ローラーによつて構成され分離された紙を給紙搬送さ
せる給紙搬送機構とからなる紙分離給紙搬送装置におい
て、搬送ローラーと同一軸の中央部に補助コロを設け、
且つこの補助コロを、２分割した分離ローラーの間に配
置したことを特徴とする自動紙送り装置。1. A separation mechanism comprising a separation roller having a paper accommodating table at its tip and a friction roller pressed against and driven by the separation roller, and a feed roller provided on the same axis as the separation roller and pressure contact with the feed roller. In a paper separating / feeding / transporting device configured by a transporting roller configured to feed and transport separated paper, an auxiliary roller is provided at the central portion of the same axis as the transporting roller,
Further, the automatic paper feeding device is characterized in that the auxiliary roller is arranged between two separating rollers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6658785A JPH0610058B2 (en) | 1985-04-01 | 1985-04-01 | Automatic paper feeder |
| US06/841,182 US4715597A (en) | 1985-03-19 | 1986-03-19 | Automatic document feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6658785A JPH0610058B2 (en) | 1985-04-01 | 1985-04-01 | Automatic paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61226430A JPS61226430A (en) | 1986-10-08 |
| JPH0610058B2 true JPH0610058B2 (en) | 1994-02-09 |
Family
ID=13320218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6658785A Expired - Fee Related JPH0610058B2 (en) | 1985-03-19 | 1985-04-01 | Automatic paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610058B2 (en) |
-
1985
- 1985-04-01 JP JP6658785A patent/JPH0610058B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61226430A (en) | 1986-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |