JPS5815397Y2 - Paper feeding device - Google Patents
Paper feeding deviceInfo
- Publication number
- JPS5815397Y2 JPS5815397Y2 JP1977175449U JP17544977U JPS5815397Y2 JP S5815397 Y2 JPS5815397 Y2 JP S5815397Y2 JP 1977175449 U JP1977175449 U JP 1977175449U JP 17544977 U JP17544977 U JP 17544977U JP S5815397 Y2 JPS5815397 Y2 JP S5815397Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheets
- roller
- sheet
- thickness
- 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
Links
Landscapes
- Controlling Sheets Or Webs (AREA)
- Image Input (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
【考案の詳細な説明】
本考案は光学文学読取装置Ｃ以下ＯＣＲと記す）光学マ
ーク読取装置（以下ＯＭＲと記す）、複写機やファクシ
ミリ等の紙葉を搬送する機器に関するものであり、搬送
されろ紙葉の厚みを検出し、特に１枚搬送されたのが２
枚以上重なって搬送（以下重送と記す）されたかを検出
する装置を提供することにある。[Detailed description of the invention] The present invention relates to an optical literature reader C (hereinafter referred to as OCR)), an optical mark reader (hereinafter referred to as OMR), a copying machine, a facsimile machine, and other equipment for conveying paper sheets. The thickness of the filter paper leaf was detected, and in particular, the number of sheets transported was 2.
It is an object of the present invention to provide a device that detects whether or not sheets are conveyed in an overlapped manner (hereinafter referred to as double conveyance).
従来、ＯＣＲやＯＭＲは第１図の如くホッパ１に多数枚
積載された紙葉２（日付や金額等が書き込１れた売上げ
伝票や集金伝票）を給紙ローラ３で１枚づつ繰り出して
、イメージセンサ４で紙葉２に書かれた数字や記号等の
光学的に読み取った後スタッカー５に積載する訳である
が、給紙ローラ３で紙葉２を複数枚重なった状態で繰り
出されると、重なった紙葉２の２枚目はイメージセンサ
４で読ｌれずにその１まスタッカー５に積載される。Conventionally, in OCR and OMR, as shown in Fig. 1, a large number of paper sheets 2 (sales slips or bill collection slips with dates, amounts, etc. written on them) are loaded in a hopper 1 and fed out one by one by a paper feed roller 3. After the image sensor 4 optically reads the numbers and symbols written on the paper sheets 2, the paper sheets 2 are stacked on the stacker 5, and the paper feed rollers 3 feed out the paper sheets 2 in an overlapping state. Then, the second of the overlapping sheets 2 is stacked on the stacker 5 without being read by the image sensor 4.
すなわち読み取られない紙葉２が発生するので、特に金
額を取り扱う関係で問題となる。In other words, some paper sheets 2 are not read, which is a problem especially when handling monetary amounts.
したがってＯＣＲやＯＭＲでは紙葉２は重送されること
なく確実に１枚１枚ホッパー１から繰り出されろ紙葉２
の１枚分離搬送機構を有していることが必要である。Therefore, in OCR and OMR, the paper sheets 2 are reliably fed out one by one from the hopper 1 without being double fed.
It is necessary to have a single-sheet separation and conveyance mechanism.
筐た複写機やファクシ□りにおいても複写ミスや複写用
紙の節約の面から、原稿用紙も複写用紙も確実に１枚繰
シ出される用紙１枚分離搬送機構を有していることが必
要である。In order to prevent copying errors and save copy paper, even in case copying machines and facsimile machines, it is necessary to have a single-sheet separation and conveyance mechanism that reliably feeds out one sheet of original paper and copy paper. be.
ところが現状の技術レベルでは、紙葉の１枚分離搬送機
構により確実に１枚１枚紙葉が搬送されるという保証が
なく、特にホッチキスやのりで止められた紙葉又は、高
湿度条件にかいての紙葉と紙葉の密着した紙葉等は、し
ばしば紙葉が重送されていた。However, at the current level of technology, there is no guarantee that the paper sheet separation and conveyance mechanism will reliably convey each sheet one by one. In cases where two sheets of paper were in close contact with each other, the sheets were often fed double.
本考案は上記欠点を解消した給紙装置を提供するもので
ある。The present invention provides a paper feeding device that eliminates the above-mentioned drawbacks.
以下、本考案の詳細について実施例を示す図面とともに
述べる。Hereinafter, details of the present invention will be described with reference to drawings showing embodiments.
第２図において６は紙葉面と接触して紙葉２を案内する
搬送面である。In FIG. 2, reference numeral 6 denotes a conveying surface that guides the sheet 2 by contacting the surface of the sheet.
７はローラで例えばＤＣモータ、ＡＣモータ等の駆動源
８に直結して、例えば紙葉２の搬送方向に回転し且つ例
えば紙葉２の搬送速度Ｖより速いスピードＶ十αで回転
している。A roller 7 is directly connected to a drive source 8 such as a DC motor or an AC motor, and rotates, for example, in the conveyance direction of the paper sheet 2, and at a speed V0α higher than the conveyance speed V of the paper sheet 2, for example. .
９は回動レバーで軸１０に回転自在に取９つけられ、本
体側板１１に取りつけたストッパ１２と回動レバー９と
本体側板１１間に取りつけた復帰バネ１３により位置規
正している。A rotating lever 9 is rotatably attached to a shaft 10, and its position is adjusted by a stopper 12 attached to a side plate 11 of the main body and a return spring 13 attached between the rotating lever 9 and the side plate 11 of the main body.
回動レバー９がストッパ１２に当接した状態では搬送面
６とローラ７の隙間δは搬送されろ紙葉２の１枚の厚み
より大きく紙葉２の２枚の厚みより小さい値に設定して
いる。When the rotating lever 9 is in contact with the stopper 12, the gap δ between the conveying surface 6 and the roller 7 is set to a value greater than the thickness of one of the filter paper sheets 2 being conveyed and smaller than the thickness of two of the filter paper sheets 2. There is.
な訃、図示していないがストッパ１２の位置を移動させ
て前記隙間δを可変できるように構成している。Although not shown, the gap δ can be varied by moving the position of the stopper 12.
前記駆動源８は、搬送面６とローラ７間に紙葉２が挿入
した際にローラ７と紙葉２間で生じる摩擦負荷が大きく
なると回転数が減少するＤＣモータを使用している。The drive source 8 uses a DC motor whose rotation speed decreases as the frictional load generated between the roller 7 and the paper sheet 2 increases when the paper sheet 2 is inserted between the conveying surface 6 and the roller 7.
１４は検出手段であり、ローラ７の側面に複数個の透孔
１５を形成し、透孔１５の回転軌跡と対向する位置の両
側に発光素子１６と受光素子１７を配しローラ５が回転
することでローラ７の透孔１５により光を断続的に透光
したすしゃへいしたりすることによシ断続的にパルスを
発生させ、パルス数をカウントすることで、ローラ５の
スピードを検知できる構成にしている。Reference numeral 14 denotes a detection means, which has a plurality of through holes 15 formed on the side surface of the roller 7, and a light emitting element 16 and a light receiving element 17 arranged on both sides of the position facing the rotation locus of the through hole 15, so that the roller 5 rotates. This configuration allows the speed of the roller 5 to be detected by intermittently generating pulses by passing light through the through holes 15 of the roller 7 intermittently and by counting the number of pulses. I have to.
１８は紙葉２を搬送させる搬送ローラである。18 is a conveyance roller that conveys the paper sheet 2.
搬送板６とローラ７の隙間δは搬送されろ紙葉２の１枚
の厚みよりも大きくし、２枚の厚みよりも小さい値に設
定されているので、搬送面６とローラ７間に紙葉２が存
在しない時、又は１枚だけ搬送されてきた時はローラ７
のスピードＶ＋αは紙葉２が儒２図のようにローラ７に
当接せず負荷が掛からないので、スピード（Ｖ＋α）は
変化シない。The gap δ between the conveying plate 6 and the rollers 7 is set to be larger than the thickness of one sheet of filter paper 2 to be conveyed and smaller than the thickness of two sheets, so that there is no paper sheet between the conveying surface 6 and the rollers 7. 2 does not exist, or when only one sheet is conveyed, roller 7
Since the paper sheet 2 does not come into contact with the roller 7 as shown in Figure 2 and no load is applied to the speed V+α, the speed (V+α) does not change.
次に搬送面６とローラ７間に紙葉２が２枚以上搬送され
た時は、搬送面６とローラ間の隙間δは搬送される紙葉
２の１枚の厚みより大きく２枚の厚みより小さい忙に設
定されているので、第３図に示すように回動レバー９は
ストッパ１２から復帰バネ１３に反発して若干離脱し紙
葉２に垂直抗力Ｈを与え、又搬送ローラ１８のスピード
Ｖがローラ７のスピード（Ｖ十α）より遅いので、ロー
ラ７と紙葉２間の摩擦によりロー２７のスピードが第２
図のごとく搬送ローラ１８のスピードＶと同程度に変化
する。Next, when two or more sheets of paper 2 are transported between the transport surface 6 and the rollers 7, the gap δ between the transport surface 6 and the rollers is larger than the thickness of one sheet of paper 2 to be transported, and is equal to the thickness of two sheets. As shown in FIG. 3, the rotating lever 9 is slightly detached from the stopper 12 against the return spring 13, applying a vertical force H to the paper sheet 2, and also causing the conveying roller 18 to Since the speed V is slower than the speed of the roller 7 (V + α), the friction between the roller 7 and the paper sheet 2 causes the speed of the roller 27 to reach the second speed.
As shown in the figure, the speed changes to the same extent as the speed V of the conveyance roller 18.
第１図と第２図のロー２７のスピードの変化を検出手段
１４でスピード変化を検出して、紙葉２が１枚か２枚以
上かを検出することが出きる。By detecting a change in the speed of the row 27 in FIGS. 1 and 2 using the detection means 14, it is possible to detect whether there is one sheet 2 or two or more sheets.
なお、本考案の紙葉２０重送検出の検出手段はローラ７
と紙葉２間で生じる摩擦負荷を、ローラ７のスピードに
変えて検出を行なっていたが、他の重送検出の検出手段
として、ローラ７と紙葉２間で生じる摩擦負荷が大きく
なると駆動電流が太きなるＤＣモータ８の電流値の変化
１を検出することで紙葉２が１枚か２枚以上かを検出す
ることが出きる。Note that the detection means for detecting double feeding of 20 paper sheets according to the present invention is the roller 7.
Detection was performed by converting the frictional load generated between the roller 7 and the sheet 2 into the speed of the roller 7, but as another means of detecting double feeding, when the frictional load generated between the roller 7 and the sheet 2 increases, the speed of the roller 7 increases. By detecting a change 1 in the current value of the DC motor 8 where the current becomes thicker, it is possible to detect whether there is one sheet 2 or two or more sheets.
以上のように本考案はモータで回転しているローラと搬
送面との間隔を、紙葉１枚の厚みより大きく、また紙葉
２枚の厚みより小さい隙間にしてトき、紙葉が２枚以上
送出された際に前記ローラと紙葉との摩擦により生じる
前記モータの負荷変化を検出する検出手段を設けること
により、紙業の重送りを確実に検出することができ、そ
の実用的価値は大なるものがある。As described above, the present invention makes the gap between the roller rotated by a motor and the conveying surface larger than the thickness of one sheet of paper and smaller than the thickness of two sheets of paper, so that two sheets of paper By providing a detection means that detects the load change of the motor caused by the friction between the roller and paper sheets when more than one paper sheet is fed out, it is possible to reliably detect double feeding in the paper industry, and its practical value is There is something big about it.
第１図は従来の一実施例のＯＣＲ装置の紙葉搬送部の概
略構成図、第２図トよび第３図は本考案の異なる実施例
の給紙装置の要部構成図である。
２・・・・・・紙葉、６・・・・・・搬送面、１・・・
・・・ローラ、８・・・・・・駆動源、９・−・・・・
回動レバー、１０・・・・・・軸、１１・・・・・・本
体側板、１２・・・・・・ストッパ、１３・・・・・・
復帰バネ１．１４・・・・・・検出手段、１５・・・・
・・透孔、１６・・・・・・発光素子、１７・・・・・
・受光素子。FIG. 1 is a schematic diagram of a sheet conveying section of an OCR apparatus according to a conventional embodiment, and FIGS. 2, 2, and 3 are diagrams of essential parts of a paper feeder according to different embodiments of the present invention. 2...Paper leaf, 6...Transportation surface, 1...
...Roller, 8...Drive source, 9...
Rotating lever, 10...shaft, 11...body side plate, 12...stopper, 13...
Return spring 1.14...detection means, 15...
...Through hole, 16...Light emitting element, 17...
·Light receiving element.
Claims (3)
搬送面と対向する位置にモータで回転しているローラと
、前記搬送面と前記ローラ間を紙葉１枚の厚みよりも大
きく、紙葉２枚の厚めよりも小さい隙間に調整する調整
手段とを設けるとともに、搬送された紙葉が１枚か２枚
以上かを前記ローラの摩擦により生じる前記モータの負
荷変化から検出する検出手段を設けたことを特徴とする
給紙装置。(1) A conveyance surface that guides the paper sheet by contacting the sheet surface, a roller rotated by a motor at a position facing the conveyance surface, and a distance between the conveyance surface and the rollers that is the thickness of one sheet of paper. and an adjustment means for adjusting the gap to be larger than the thickness of two sheets of paper and smaller than the thickness of two sheets of paper, and also determine whether one or more sheets of paper are being conveyed based on the load change of the motor caused by the friction of the rollers. A paper feeding device characterized by being provided with a detection means for detecting the paper.
前記駆動源を前記ローラの摩擦負荷に伴なって回転数が
変化するモータを設け、前記ローラに透孔を形成し、前
記透孔の回転軌跡と対向する位置の両側に発光素子と受
光素子を配し前記受光素子パルス列の変化によって前記
紙葉が１枚か２枚以上かを検出することを特徴とする給
紙装置。(2) Registration of a utility model According to the description in claim 1, the drive source is provided with a motor whose rotational speed changes according to the frictional load of the roller, a through hole is formed in the roller, and the A paper feeding device characterized in that a light emitting element and a light receiving element are arranged on both sides of a position facing the rotation locus of the through hole, and detecting whether the number of sheets is one or more than two sheets based on a change in the pulse train of the light receiving element.
前記駆動源として前記ローラの摩擦負荷に伴なって電流
値が変化するモータを用い、前記電流値の変化によって
前記紙葉が１枚か２枚以上かを検出することを特徴とす
る給紙装置。(3) In the statement in paragraph 1 of the claims for utility model registration,
A paper feeding device characterized in that a motor whose current value changes according to the frictional load of the roller is used as the drive source, and whether the number of sheets of paper is one or two or more is detected based on the change in the current value. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977175449U JPS5815397Y2 (en) | 1977-12-23 | 1977-12-23 | Paper feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977175449U JPS5815397Y2 (en) | 1977-12-23 | 1977-12-23 | Paper feeding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5499285U JPS5499285U (en) | 1979-07-13 |
| JPS5815397Y2 true JPS5815397Y2 (en) | 1983-03-28 |
Family
ID=29183022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977175449U Expired JPS5815397Y2 (en) | 1977-12-23 | 1977-12-23 | Paper feeding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815397Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5010803U (en) * | 1973-06-02 | 1975-02-04 | ||
| JPS5232707A (en) * | 1975-09-09 | 1977-03-12 | Fujitsu Ltd | Jam detector |
-
1977
- 1977-12-23 JP JP1977175449U patent/JPS5815397Y2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5010803U (en) * | 1973-06-02 | 1975-02-04 | ||
| JPS5232707A (en) * | 1975-09-09 | 1977-03-12 | Fujitsu Ltd | Jam detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5499285U (en) | 1979-07-13 |
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