JPS586826Y2 - Paper feed stop mechanism - Google Patents
Paper feed stop mechanismInfo
- Publication number
- JPS586826Y2 JPS586826Y2 JP7733379U JP7733379U JPS586826Y2 JP S586826 Y2 JPS586826 Y2 JP S586826Y2 JP 7733379 U JP7733379 U JP 7733379U JP 7733379 U JP7733379 U JP 7733379U JP S586826 Y2 JPS586826 Y2 JP S586826Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- paper feed
- feeding
- roller
- scraper
- 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)
- Delivering By Means Of Belts And Rollers (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【考案の詳細な説明】
本考案は給紙装置にかかり、特に２枚以上の給紙を防止
する機構に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device, and particularly relates to a mechanism for preventing the feeding of two or more sheets of paper.
複写機又は印刷機、プリンタ等において、用紙を給紙す
る際、２枚送りを防止する各種装置が提案され実施され
ている。2. Description of the Related Art Various devices have been proposed and implemented to prevent double-sheet feeding when feeding paper in copying machines, printing machines, printers, and the like.
例えば、複写機においては、カセット内に用紙を収容し
、カセット内の用紙ヲ一枚ずつ給紙するため、カセット
先端コーナーに分離爪を設ける等して、２枚給紙を防止
している。For example, in a copying machine, sheets are stored in a cassette and the sheets in the cassette are fed one by one, so a separation claw is provided at the leading edge corner of the cassette to prevent two sheets from being fed.
しかし、上記分離爪は２枚送りを全てに渡って防止でき
るとは限らない。However, the separating claw cannot always prevent two-sheet feeding.
従って、カセット内より２枚の給紙が行われることがよ
くある。Therefore, two sheets are often fed from within the cassette.
従来では２枚の給紙が行われると、この２枚の用紙はそ
のまま複写機内の複写工程へ送られ、排紙トレイ上に排
紙されればよいが、よくジャ□ング等が発生する。Conventionally, when two sheets of paper are fed, the two sheets of paper are simply sent to a copying process in a copying machine and ejected onto a paper ejection tray, but juggling and the like often occur.
即ち、２枚給紙される際、これを機器本体内に送り込む
のを停止する手段は講じられていなかった。That is, when two sheets of paper are being fed, no means has been taken to stop them from being fed into the main body of the device.
本考案は２枚の給紙が行われた際、これらの用紙が複写
機内に送り込まれるのを防止する機構を提供するもので
ある。The present invention provides a mechanism that prevents two sheets of paper from being fed into the copying machine when two sheets of paper are fed.
つまり、本考案は給紙口に対向して設けられた紙送りロ
ーラにより、複写機内に給紙用紙が送り込まれるが、上
記紙送りローラにて２枚の給紙が行われれば、送り込み
を停止させる機構である。In other words, in the present invention, paper is fed into the copying machine by a paper feed roller provided opposite to the paper feed port, but once two sheets have been fed by the paper feed roller, feeding is stopped. It is a mechanism that allows
以下図面に従って本考案を詳細に説明する。The present invention will be described in detail below with reference to the drawings.
第１図は複写機の給紙部に対向して設けた本考案の紙送
り機構を示す断面図、第２図はその斜視図である。FIG. 1 is a sectional view showing a paper feeding mechanism of the present invention provided opposite to a paper feeding section of a copying machine, and FIG. 2 is a perspective view thereof.
図中１は用紙２を収容するカセット、３はカセットの底
に囲動自在に設けられ用紙２を規定位置に押し上げるた
めの底板、４はカセット先端部のコーナーに設けられ押
し上げられた用紙の最上部を一定位置に規制し用紙の２
枚送りを防止を行う分離爪、５はカセット内の用紙と対
向して複写機本体に１回転クラッチ等を介して駆動され
る半円形状の給紙ローラ、６はカセット１を装着するた
めの複写機本体側に位置したカセット受は台である。In the figure, 1 is a cassette that stores paper 2, 3 is a bottom plate that is movably provided at the bottom of the cassette and is used to push up the paper 2 to a specified position, and 4 is a bottom plate that is provided at the corner of the tip of the cassette to hold the paper that has been pushed up. Regulate the upper part to a certain position and press the paper 2
Separation claw for preventing sheet feeding; 5 is a semicircular paper feed roller that faces the paper in the cassette and is driven by a one-turn clutch on the copying machine body; 6 is a semicircular paper feed roller for mounting the cassette 1; The cassette holder located on the side of the copying machine body is a stand.
上述の給紙機構において、給紙ローラ５の回転によりカ
セット１内の最上部の用紙２が分離爪４を乗り越え給紙
される。In the above-described paper feeding mechanism, the uppermost paper 2 in the cassette 1 passes over the separation claw 4 and is fed by the rotation of the paper feeding roller 5.
この時、分離爪４０作用により用紙２は１枚づつ給紙さ
れる。At this time, the sheets 2 are fed one by one by the action of the separation claw 40.
上記用紙２の給紙部に対向して複写機本体内に送り込む
紙送りローラ７，８が設けられている。Paper feed rollers 7 and 8 are provided opposite to the paper feed section for feeding the paper 2 into the main body of the copying machine.
下部の紙送りローラ７は、複写機本体の駆動源より回転
力が伝達される駆動ローラであり、上部の紙送りローラ
８は、上記紙送りローラ１の回転に従い回転する従動ロ
ーラであって、自重で下側の紙送りローラ７に乗ってい
る。The lower paper feed roller 7 is a drive roller to which rotational force is transmitted from the drive source of the copying machine main body, and the upper paper feed roller 8 is a driven roller that rotates in accordance with the rotation of the paper feed roller 1. It rides on the lower paper feed roller 7 due to its own weight.
この上下の紙送りローラ７．８０間に且つローラ８の欠
如部８−１に薄いスクレーパ９が設けられている。A thin scraper 9 is provided between the upper and lower paper feed rollers 7 and 80 and in the cutout 8-1 of the roller 8.
スクレーパ９は、紙送りローラ７，８に位置した反対側
の端部が、紙送りローラ７，８にて送り込まれた用紙を
複写工程へ導びくための下部の案内板１０に取り付けら
れている。The end of the scraper 9 opposite to the paper feed rollers 7 and 8 is attached to a lower guide plate 10 for guiding the paper sent by the paper feed rollers 7 and 8 to the copying process. .
尚、符号１１は下部案内板１０と対向して設けられ、送
り込まれた用紙を複写工程へ導びくための上部の案内板
である。Note that reference numeral 11 is an upper guide plate that is provided opposite to the lower guide plate 10 and guides the fed paper to the copying process.
又、下部の案内板１０は第１図に示す如く、紙送りロー
ラ１と対向した先端が折り曲げられ、スクレーパ９とで
用紙の進入を防止するストッパ一部１０−１を構成して
いる。Further, as shown in FIG. 1, the lower guide plate 10 has a bent end facing the paper feed roller 1, and together with the scraper 9 forms a stopper portion 10-1 for preventing paper from entering.
以上の構成のものにおいて、第３図ａ、ｂ、ｃ及び第４
図ａ、ｂ、ｃを参照してその作用を説明する。In the above configuration, Fig. 3 a, b, c and 4
The operation will be explained with reference to figures a, b, and c.
給紙ローラ５０回転に従いカセット１内より１枚の用紙
２が給紙されると、この用紙２は第３図ａに示す様に、
先端が上部の紙送りローラ８に当り、この紙送りローラ
８とスクレーパ９との間に送られる。When a sheet of paper 2 is fed from inside the cassette 1 as the paper feed roller rotates 50 times, this sheet of paper 2 is fed as shown in FIG. 3a.
The leading end hits the upper paper feed roller 8 and is sent between the paper feed roller 8 and the scraper 9.
その後、用紙２は第３図Ｃに示す如く給紙ローラ５の作
用に換って、上下の紙送りロー２７，８により案内板１
０，１１を介して複写機内の複写工程へと送り込まれる
。Thereafter, as shown in FIG.
0 and 11 to the copying process in the copying machine.
次に、給紙ローラ５により第４図に示す如く、２枚の用
紙が給紙された場合、上部の用紙２は１枚給紙と同様ス
クレーパ９の上に沿って案内される（第４図す参照）。Next, when two sheets of paper are fed by the paper feed roller 5 as shown in FIG. (see figure).
一方、下の用紙２′は、スクレーパ９により上の用紙２
より剥離されたスクレーパ９の下側へと案内される。On the other hand, the lower paper 2' is removed by the upper paper 2 by the scraper 9.
It is guided to the lower side of the scraper 9 where it has been further peeled off.
この２枚の用紙はスクレーパ９を挾んで上下の紙送りロ
ーラ７゜８にて送られる（第４図Ｃ参照）。These two sheets are sandwiched between the scraper 9 and sent by upper and lower paper feed rollers 7.8 (see FIG. 4C).
しかし、スクレーパ９が下部の案内板１０に取り付けら
れていることから、スクレーパ９の下に案内された用紙
２′は、案内板１０のストッパ一部１０−１にてそれ以
後の入紙が停止される。However, since the scraper 9 is attached to the guide plate 10 at the bottom, the sheet 2' guided under the scraper 9 is stopped from entering further by the stopper part 10-1 of the guide plate 10. be done.
これにより、上部の用紙２もその場で入紙が停止される
。As a result, the upper sheet 2 is also stopped from entering at that point.
つまり、駆動ローラである下部紙送りローラ７は、停止
用紙２′により上部ローラ８に回転力が伝達されず、用
紙２の入紙も停止されることになる。In other words, the rotational force of the lower paper feed roller 7, which is a driving roller, is not transmitted to the upper roller 8 due to the stopped paper 2', and the input of the paper 2 is also stopped.
ここで、案内板１０を折り曲げてストッパ一部１０−１
をスクレーパ９との間で構成しているが、第２図に示す
如くスクレーパ９の一部を折り曲げ、このスクレーパ９
と一体的にストッパ一部９−１を構成してもよい。Here, the guide plate 10 is bent and the stopper part 10-1 is
A part of the scraper 9 is bent as shown in FIG.
The stopper portion 9-1 may be configured integrally with the stopper portion 9-1.
以上説明したように、本考案の用紙停止機構は、給紙口
に対向して設けたもので、２枚以上用紙が給紙されると
、これらの用紙の入紙を停止することができ、未然にト
ラブル等例えばジャミング等の発生を押えることができ
る。As explained above, the paper stop mechanism of the present invention is provided facing the paper feed port, and when two or more sheets of paper are fed, the paper stop mechanism of the present invention can stop the paper input. It is possible to prevent troubles such as jamming from occurring.
第１図は給紙部に対向して設けられた本考案の用紙停止
機構の一実施例を示す断面図、第２図はその斜視図、第
３図ａ、ｂ、ｃ及び第４図ａ ＊ ｂ ＋Ｃは本考案に
よる動作状態を示す図で、第３図は１枚給紙の通常状態
を第４図は２枚給紙の状態を示すものである。
２・・・・・・用紙、７・・・・・・下部の駆動用紙送
りローラ、８・・・・・・上部の従動用紙送りローラ、
９・・・・・・スクレーパ、１０・・・・・・下部の案
内部、１０−１ （９−１）・・・・・・ストツバ一部
。Fig. 1 is a sectional view showing an embodiment of the paper stopping mechanism of the present invention provided opposite to the paper feed section, Fig. 2 is a perspective view thereof, Figs. 3 a, b, c, and Fig. 4 a. * b +C is a diagram showing the operating state according to the present invention, in which FIG. 3 shows a normal state in which one sheet is fed, and FIG. 4 shows a state in which two sheets are fed. 2...Paper, 7...Lower drive paper feed roller, 8...Upper driven paper feed roller,
9...Scraper, 10...Lower guide section, 10-1 (9-1)...Part of the stopper.
Claims (2)
ーラと、この上下紙送りローラの間に位置したスクレー
パと、このスクレーパと上記下部の紙送りローラとの間
に送られた用紙を停止させるストッパーとを具備し、給
紙用紙がスクレーパと下紙送りローラとの間に送られた
場合、該用紙の紙送りを停止させることを特徴とする給
紙用紙停止機構。(1) Upper and lower paper feed rollers provided opposite to the paper feed port, a scraper located between these upper and lower paper feed rollers, and a scraper that is fed between this scraper and the lower paper feed roller. A feeding paper stopping mechanism comprising a stopper for stopping paper, and stopping feeding of the paper when the feeding paper is sent between a scraper and a lower paper feeding roller.
ーラを従動ローラとしたことを特徴とする実用新案登録
請求の範囲第１項記載の用紙の給紙停止機構。(2) The sheet feeding stop mechanism according to claim 1, wherein the lower paper feeding roller is a driving roller and the upper feeding roller is a driven roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7733379U JPS586826Y2 (en) | 1979-06-06 | 1979-06-06 | Paper feed stop mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7733379U JPS586826Y2 (en) | 1979-06-06 | 1979-06-06 | Paper feed stop mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55176247U JPS55176247U (en) | 1980-12-17 |
| JPS586826Y2 true JPS586826Y2 (en) | 1983-02-05 |
Family
ID=29310814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7733379U Expired JPS586826Y2 (en) | 1979-06-06 | 1979-06-06 | Paper feed stop mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS586826Y2 (en) |
-
1979
- 1979-06-06 JP JP7733379U patent/JPS586826Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55176247U (en) | 1980-12-17 |
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