JPS60258036A - Sheet direction change device - Google Patents

Abstract

PURPOSE:To simply change the direction of a paper sheet by making proportional and inverse proportional the feed velocity of feed rolls arranged orthogonally to the direction of trasporting the sheet to the distances between the end edge of the sheet and the rolls, and changing the velocity ratio for odd-numbered and even-numbered sheets alternately. CONSTITUTION:The first and second paper sheet transport mechanism 1, 2 are disposed side by side apart from each other in the transport direction. Feed belts 5, 5 are warpped round both mechanisms, and the first to fourth feed rolls 8-11 are provided between upper and lower guide plates 6, 7 at intervals orthogonally to the transport direction. The feed velocity of the rolls 8-11 are set proportinal and inverse proportional to the distances L1-L4 between the end edge 5a of the belt 5 and the rolls. The velocity ratio is changed in such a manner that for the odd-numbered sheet, the peripheral velocity of the rolls is proportional to the distances L1-L4, and for the even-numbered sheet, the peripheral velocity of the rolls is inverse proportional. Thus, the odd-numbered sheet A is transported with a gradient to be turned counter-clockwise in a 90 deg. arc, and the even-numbered sheet A is turned clockwise in a 90 deg. arc.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、複写機や紙折り機の用紙搬送路に設けられて
用紙の向きを変換する装置に係り、特にＤＵＡＬ　５Ｃ
ＡＮ　（両方向走査）を行う光学系を有する複写機の定
着後の用紙搬送に用いて好適な、用紙の向きを交互に反
転変換させる装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device that is installed in a paper conveyance path of a copying machine or a paper folding machine and changes the direction of paper, and particularly relates to a device for changing the orientation of paper.
The present invention relates to a device for alternately inverting and converting the orientation of a sheet of paper, which is suitable for use in conveying paper after fixing in a copying machine having an optical system that performs AN (bidirectional scanning).

従来の技術 複写機や紙折り機においてはサイズの異なる用紙を紙揃
えしたり、折り方向を変えたりするために、その用紙搬
送路に用紙の向きを変換する装置が設けである。In conventional copying machines and paper folding machines, in order to align sheets of different sizes and change the direction of folding, a device for changing the orientation of the sheets is provided in the sheet transport path.

一般にこのような用紙向き変換装置としては、ターンテ
ーブルを用い、ターンテーブル上に用紙を載置してター
ンテーブルを旋回させることにより用紙の向きを変換す
る装置が用いられている。Generally, such paper orientation changing devices include devices that use a turntable, place the paper on the turntable, and rotate the turntable to change the orientation of the paper.

発明が解決しようとする問題点 前記したような従来の用紙の向き変換装置では、用紙を
搬送するロールの駆動とは別にターンテーブルを旋回駆
動する必要があるばかりで　１なく、特に両方向走査コ
ピーの場合にはホツテΦス等の後処理工程をソータフイ
ニツンヤ等で行うには、交互に向きがさかさまになって
送られてくる定着後の用紙を、ターンテーブル等によっ
て用紙の向きを合せなければならないため、機構がます
ます複雑になり、サイズも大きくなつてしまうという問
題点があった。Problems to be Solved by the Invention In the conventional paper orientation changing device as described above, not only is it necessary to drive the turntable to rotate separately from driving the rolls that convey the paper, but also it is necessary to rotate the turntable separately from driving the rolls that convey the paper. In some cases, in order to perform post-processing processes such as hot-fixing with a sorter, the paper after fixing is sent upside down alternately, and the orientation of the paper is adjusted using a turntable, etc. As a result, the mechanism becomes increasingly complex and the size increases.

この発明は上記した従来装置の有する問題点を解決する
ためになされたものであり、交互にさかさまに送られて
くる用紙の向きをコンパクトな機構で簡単に変換できる
ようにしたものである。This invention has been made to solve the above-mentioned problems of the conventional apparatus, and allows the orientation of sheets that are alternately fed upside down to be easily changed using a compact mechanism.

問題点を解決するための手段及び作用 上記問題点を解決するために、この発明では両方向走査
光学系を有する複写機の定着後の用紙搬送に際し、この
用紙の搬送方向と直交する方向に複数の送りロールを配
設し、これら送りロールの送り速度を用紙端縁より送り
ロールまでの距離と比例する値及び反比例する値に切替
えできるように構成し、奇数番目の用紙、偶数番目の用
紙に対して交互に上記送りロールの回転速度比を切替反
転させるようにしたものである。Means and Function for Solving the Problems In order to solve the above problems, in the present invention, when paper is transported after fixing in a copying machine having a bidirectional scanning optical system, a plurality of Feed rolls are provided, and the feed speed of these feed rolls is configured to be able to be switched between a value proportional to the distance from the edge of the paper to the feed roll and a value inversely proportional to the distance from the edge of the paper to a value that is inversely proportional. The rotational speed ratio of the feed rolls is alternately switched and reversed.

実施例 この発明の実施例を図面に基いて説明する。Example Embodiments of this invention will be described based on the drawings.

図において第１用紙搬送機構１と隣り合せに第２用紙搬
送機構２が搬送方向に離隔して並設され、これら第１、
第２用紙搬送機構１，２はいずれも駆動ロール３，３と
従動ロール４，４とに送りベルト５，５を巻掛けたもの
であって、この送りベルト５．５間に跨って上下案内板
６゜７が架設され、この上下案内板６，７間には第１、
第２、第３、第４送りロール８，９．ｔｏ。In the figure, a second paper transport mechanism 2 is arranged adjacent to the first paper transport mechanism 1 and spaced apart from each other in the transport direction, and these first,
The second paper transport mechanisms 1 and 2 each have a feed belt 5, 5 wrapped around drive rolls 3, 3 and driven rolls 4, 4, and are vertically guided by spanning between the feed belts 5, 5. A plate 6°7 is installed between the upper and lower guide plates 6 and 7.
Second, third, fourth feed rolls 8, 9. to.

１１が搬送方向と直角方向に間隔を置いて設けてあり、
また第２用紙搬送機構２の送りベルト５の側方には側方
案内板１２が搬送方向に沿って配設しである。11 are provided at intervals in the direction perpendicular to the conveying direction,
Further, a side guide plate 12 is disposed on the side of the feed belt 5 of the second paper conveyance mechanism 2 along the conveyance direction.

上記第１、第２、第３、第４送りロール８゜９．１０．
ｌ　１は駆動ロール８＋、９＋、Ｉ　Ｏｔ、ｌ　Ｉｔと
アイドラロール８□、９ｔ、ｌ　Ｏｔ、ｌ　Ｉｔとを圧
接したものから成り、駆動ロール８１，９．．１０．。Said first, second, third and fourth feed rolls 8°9.10.
l 1 consists of drive rolls 8+, 9+, I Ot, l It and idler rolls 8□, 9t, l Ot, l It, which are pressed together, and drive rolls 81, 9 . ．． 10. .

１１１の周速、すなわち第１、第２、第３、第４送りロ
ール８，９．ｔｏ、＋１の送り速度は後述するように送
りベルト５の端縁５α（つまり　・ｌ用紙の端縁）より
の距離り、、　Ｌｔ、　Ｌｓ、　Ｌ、に比例および反比
例した値となるように設定されており、また上記各ロー
ルは上下案内板６，７の切欠窓ｆ、ａ、７ａに配設され
ている。111 peripheral speed, that is, the first, second, third, fourth feed rolls 8, 9 . As will be described later, the feed speed of to, +1 is set to be a value that is proportional and inversely proportional to the distance from the edge 5α of the feed belt 5 (that is, the edge of the paper), Lt, Ls, and L. The above-mentioned rolls are arranged in cutout windows f, a, and 7a of the upper and lower guide plates 6 and 7.

なお１３は第１用紙搬送機構１の送りベルト５に圧接し
た送りロールである。Note that 13 is a feed roll that is in pressure contact with the feed belt 5 of the first paper conveyance mechanism 1.

前記第１、第２、第３、第４送りロール８゜９、＋０．
ｌ　１の駆動ロール８．、９１．　Ｉ　Ｏ，、Ｉ　ＩＩ
は、両方向走査を行う光学系を有する複写機において定
着後、第５図に示すようにコピー用紙が送られて来た場
合、奇数番目（図においてＶと示されている）の用紙に
対しては前記各ロールの周速が前記距離り、、　Ｌ、、
　Ｌ、、　Ｌ、と比例した値、例えばＬ＋’Ｌ２：Ｌｓ
：Ｌ４−１　：２：３：４の場合にはＭ２：３：４とな
るように駆動され、偶数番目（図においてＡと示されて
いる）の用紙に対しては前記各ロールの周速が前記距離
ＬＩＩＬ、、Ｌ、、Ｌ４と反比例した値、例えば上記の
ようにＬ＋’　Ｌ２’　Ｌｓ：　Ｌ４−ｌ　’　２　：
　３　：　４の場合には４；３：２：１となるように駆
動されるように、それぞれ歯車機構、クラッチ等を組合
せて構成されている。なお上記の場合第２用紙搬送機構
２の送りベルト５は上記送りロールのうち１番早い速度
で駆動される送りロール（奇数番目では第１送りロール
８、偶数番目では第４送りロール１１）よりも十分速い
速度で駆動される。Said first, second, third and fourth feed rolls 8°9, +0.
l 1 drive roll 8. , 91. I O,, I II
After fixing in a copying machine that has an optical system that scans in both directions, when copy paper is fed as shown in Figure 5, The circumferential speed of each roll is the distance, L,
A value proportional to L,, L, for example L+'L2:Ls
:L4-1: In the case of :2:3:4, it is driven so that it becomes M2:3:4, and for the even numbered paper (indicated by A in the figure), the peripheral speed of each roll is is a value inversely proportional to the distance LIIL, , L, , L4, for example, as described above, L+'L2' Ls: L4-l' 2:
In the case of 3:4, they are constructed by combining gear mechanisms, clutches, etc. so that they are driven in a ratio of 4:3:2:1. In the above case, the feed belt 5 of the second paper conveyance mechanism 2 is faster than the feed roll driven at the fastest speed among the feed rolls (the first feed roll 8 for odd-numbered rolls, and the fourth feed roll 11 for even-numbered rolls). is also driven at a sufficiently fast speed.

なお用紙サイズは一定とすることはもち論である。Note that it is a good idea to keep the paper size constant.

いま両方向走査光学系をもった複写機の定着後の用紙搬
送に際し、第１用紙搬送機構１で第５図に示すような状
態で最初に（奇数番目）搬送された用紙Ａは、第１、第
２、第３、第４送りロール＆、９，１０，１１の駆動ロ
ール８、。When paper is transported after fixing in a copying machine having a bidirectional scanning optical system, the first (odd-numbered) paper A that is transported by the first paper transport mechanism 1 in the state shown in FIG. 2nd, 3rd, and 4th feed rolls & 9, 10, and 11 drive rolls 8.

９、、　Ｉ　０１．　ｌ　１．とアイドラロール＆２，
９２．ＩＯ２゜１１、との間に送り込まれて送り力を受
けるが、駆動ロール８＋、９＋、Ｉ　Ｏｔ、ｌ　ｌ＋の
周速が送りベルト５の端縁５ｃＬよりの距離り、、　Ｌ
２．　Ｌ、、　Ｌ４に比例した値となっているから、第
３図（イ）〜に）に示すように送りベルト５の端縁５α
より速い端縁α側の送り速度が早くなり矢印に示すよう
に用紙Ａは傾きながら送られ、反時計方向に９０゜向き
が変換される。このとき側面案内板１２によって用紙Ａ
の向きは正しく９ｏ０に変換され図のに）の状態になる
。9,, I 01. l 1. and idler roll &2,
92. The peripheral speed of the driving rolls 8+, 9+, I Ot, l l+ is fed between the IO2゜11, and receives the feeding force, but the distance from the edge 5cL of the feed belt 5, L
2. Since the value is proportional to L, L4, the edge 5α of the feed belt 5 as shown in FIG.
The feeding speed on the faster edge α side becomes faster, and the paper A is fed while being inclined as shown by the arrow, and the direction is changed by 90 degrees counterclockwise. At this time, the side guide plate 12
The orientation of is correctly converted to 9o0, resulting in the state shown in ).

つぎに第５図において第２番目（偶数番目）の用紙が搬
送されてくると、上記クラッチを切替え歯車機構によっ
て送りロール＆、９．ｔｏ。Next, in FIG. 5, when the second (even numbered) paper is conveyed, the clutch is switched and the gear mechanism is used to transfer the feed roll &9. to.

１１０回転速度比を反転させるよう、つまり駆動ロール
６．９＋、Ｉ　Ｏ＋、ｌ　Ｉ＋の周速が送りベルト５の
端縁５αよりの距離り、、　Ｌ２．　Ｌ、、　Ｌ４と反
比例した値となるようになるので、第４図（イ）′〜に
）′に示すように送りベルト５の端縁５αに近い側の端
縁α側の送り速度が早くなり矢印に示すように用紙Ａは
傾めになりながら送られ、時計方向に９０°向きが変換
され、その向きは第１番目の用紙（奇数番目）と同様側
面案内板１２により正しく９０°に変換され、しかも図
に）′に示すように、用紙の向きは第１番目の用紙と同
じ向きとなるものである。110 so that the rotational speed ratio is reversed, that is, the circumferential speed of the drive rolls 6.9+, IO+, lI+ is the distance from the edge 5α of the feed belt 5, L2. Since the value is inversely proportional to L, L4, the feed speed on the edge α side of the feed belt 5, which is closer to the edge 5α, is faster, as shown in Figure 4 (a)' to )'. As shown by the arrow, paper A is fed while being tilted, and its orientation is changed clockwise by 90°, and its orientation is corrected to 90° by the side guide plate 12, just like the first paper (odd numbered). After conversion, the orientation of the paper is the same as that of the first paper, as shown in )' in the figure.

このようにして交互に送りロール８，９，１０゜１１の
回転速度比を反転させることにより、第５図に示したよ
うに交互に反対方向に向いて送（７） 侶１１古家内＃ｊへ られて来る用紙を、交互に第３図、第４図に示したよう
に９０°ターンさせて用紙の向きを一定方向に揃えるこ
とができるので、後処理を著しく簡単にすることができ
るものである。In this way, by alternately reversing the rotational speed ratio of the feed rolls 8, 9, and 10°11, the feed rollers are alternately fed in opposite directions as shown in FIG. The paper that is being bent can be turned 90 degrees alternately as shown in Figures 3 and 4 to align the orientation of the paper in a fixed direction, which greatly simplifies post-processing. It is.

発明の効果 両方向走査光学系を有する複写機の定着用紙のように交
互にさかさまの向きで送られてくる用紙の向きを、複数
の送りロールの回転速度比を交互に反転させることによ
り交互に用紙の向きを簡単に変換できてコンパクトで、
しかもソータフィニッシャ等の後処理工程の作業を著し
く簡易化することができる。Effects of the Invention By alternately reversing the rotational speed ratio of a plurality of feed rolls, the orientation of sheets that are alternately fed upside down, such as fixing sheets in a copying machine with a bidirectional scanning optical system, can be changed alternately. It is compact and allows you to easily change the paper orientation.
Moreover, the work of post-processing steps such as a sorter finisher can be significantly simplified.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明装置の平面図、第２図は同じく正面図、
第３図および第４図はそれぞれ奇数番目、偶数番目の用
紙が９０度変換されるときの動作の説明図、第５図は両
方向走査複写機の定着後の用紙の搬送状態を示す図であ
る。　１１″１・・・第１用紙搬送機構、２・・・第２
用紙搬送機構、＆、９．１０．１１・・・送りロール、
１２・・・（８） 出願人　富士ゼロックス株式会社 代理人　弁理士　米　原　正　章 弁理士　浜　本　忠 第１図 第２図 第３図 第 ５図FIG. 1 is a plan view of the device of the present invention, FIG. 2 is a front view,
FIGS. 3 and 4 are explanatory diagrams of operations when odd-numbered and even-numbered sheets are converted by 90 degrees, respectively, and FIG. 5 is a diagram showing the conveyance state of sheets after fixing in a bidirectional scanning copying machine. . 11″1...first paper transport mechanism, 2...second
Paper transport mechanism, &, 9.10.11... feed roll,
12...(8) Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto Figure 1 Figure 2 Figure 3 Figure 5

Claims (1)

【特許請求の範囲】[Claims] 用紙の搬送方向と直交する方向に複数の送りロールを配
設し、この送９０−ルの速度を用紙端縁より送りロール
までの距離と比例する値および反比例する値に切替えで
きるようにし、奇数番目、偶数番目の用紙に対し、交互
に上記送りロールの回転速度比を反転させるようにした
ことを特長とする、両方向走査複写機の用紙向き変換装
置。A plurality of feed rolls are arranged in a direction perpendicular to the paper conveyance direction, and the speed of the feed roll can be switched to a value proportional to or inversely proportional to the distance from the edge of the paper to the feed roll. A paper orientation changing device for a bidirectional scanning copying machine, characterized in that the rotational speed ratio of the feed roll is alternately reversed for the th and even-numbered sheets.