JPH056302Y2 - - Google Patents
Info
- Publication number
- JPH056302Y2 JPH056302Y2 JP1984189058U JP18905884U JPH056302Y2 JP H056302 Y2 JPH056302 Y2 JP H056302Y2 JP 1984189058 U JP1984189058 U JP 1984189058U JP 18905884 U JP18905884 U JP 18905884U JP H056302 Y2 JPH056302 Y2 JP H056302Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- document
- auxiliary roller
- roller
- ribs
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Registering Or Overturning Sheets (AREA)
Description
この考案は画像形成装置、例えば原稿の両面を
複写する複写機の原稿反転部などに設けられた搬
送ガイドに複数のリブを有する給紙装置に関す
る。
This invention relates to a paper feeding device having a plurality of ribs on a conveyance guide provided in an image forming apparatus, such as a document reversing section of a copying machine that copies both sides of a document.
従来、例えば原稿の両面を複写する複写機は、
給紙スタツカ上に積層された原稿を、一枚ずつ分
離して原稿セツト面上に搬送し、表面の複写後搬
送ベルトにより反転部へ原稿を送つて反転させ、
再び原稿セツト面上に搬送して裏面を複写する。
そしてまた反転部を通して原稿セツト面上に搬出
して原稿を元の状態に戻し、この原稿を原稿セツ
ト面から排出して排紙スタツカに収容している。
このような複写機の給紙装置においては、反転
経路の上方に搬送ガイドが設けられ、反転された
原稿を原稿セツト面に案内するようになつてい
る。
ところでこの搬送ガイドは、紙詰まりを起こし
たときに原稿を取り出すことができるように開閉
可能になつているとともに、搬送される原稿との
摩擦を低減するため、および軽量化のために内側
にリブを設けている。そして反転経路におけるリ
ブ間には、搬送ローラと対向して補助ローラが設
けられ、反転された原稿を原稿セツト面へ送り出
すようになつている。
Conventionally, copying machines that copy both sides of a document, for example,
The originals stacked on the paper feed stacker are separated one by one and transported onto the original setting surface, and after the front side is copied, the originals are sent to the reversing section by the transport belt and reversed.
The document is conveyed again onto the original set surface and the back side is copied.
Then, the document is conveyed through the reversing section onto the document set surface to return it to its original state, and the document is ejected from the document set surface and stored in a paper discharge stacker. In such a copying machine paper feeder, a conveyance guide is provided above the reversing path to guide the reversed original to the original set surface. By the way, this conveyance guide can be opened and closed so that the document can be taken out in the event of a paper jam, and it also has ribs on the inside to reduce friction with the document being conveyed and to reduce weight. has been established. An auxiliary roller is provided between the ribs on the reversing path, facing the conveyance roller, and is configured to send the reversed original to the original setting surface.
このような給紙装置においては、用紙が搬送ガ
イドに沿つて搬送される際、用紙がリブ間でたわ
みやすい。このため、リブ間に用紙が埋入する状
態となり、用紙先端が補助ローラに当接して紙詰
まりや先端折れの原因となつていた。
In such a paper feeding device, when the paper is conveyed along the conveyance guide, the paper tends to bend between the ribs. As a result, the paper becomes embedded between the ribs, and the leading edge of the paper comes into contact with the auxiliary roller, causing paper jams and folding of the leading edge.
この考案は上記の点に鑑み、原稿などが搬送ガ
イドのリブ間に設けられた補助ローラに引つ掛か
ることなく、確実に搬送できる給紙装置を得るこ
とを目的とする。
すなわちこの考案の給紙装置は、用紙を搬送手
段により搬送経路に沿つて給送する給紙装置にお
いて、
(1) 上記搬送経路に対向して設けられた搬送ガイ
ド本体、
(2) 上記搬送ガイド本体の内側に、用紙の幅方向
に並設した複数のリブ、
(3) 上記リブ間において上記搬送手段と対向して
当接するように軸設した補助ローラ、
(4) 上記補助ローラの上流側近傍に、補助ローラ
の回転中心から周面までの範囲に、上記搬送手
段側へ突出して設けられた補助リブ、
以上からなる搬送ガイドを備えたことを特徴と
するものである。
In view of the above points, this invention aims to provide a paper feeding device that can reliably transport documents and the like without getting caught by the auxiliary rollers provided between the ribs of the transport guide. That is, the paper feeding device of this invention is a paper feeding device that feeds paper along a transportation path by a transportation means, and includes: (1) a transportation guide body provided opposite to the transportation path; (2) the transportation guide. a plurality of ribs arranged in parallel in the width direction of the paper on the inside of the main body; (3) an auxiliary roller disposed between the ribs so as to face and abut against the conveyance means; (4) an upstream side of the auxiliary roller. The present invention is characterized in that a conveying guide consisting of: an auxiliary rib protruding toward the conveying means is provided in the vicinity of the auxiliary roller in a range from the center of rotation to the circumferential surface thereof.
以下、この考案の一実施例について図面を参照
して説明する。
まず、第１図に示すように複写機の原稿セツト
面１上には、搬送装置２が設けられている。この
搬送装置２は、例えば原稿セツト面１の左右両端
に配設したプーリ３，４間に無端ベルト５を張設
して構成され、無端ベルト５が原稿セツト面１上
を摺接して複写原稿６を搬送するようになつてい
る。
この搬送装置２の一端には原稿６の供給台７
が、また他端には原稿６の反転経路８がそれぞれ
連設されている。原稿６の上記供給台７は原稿ス
タツカ９、切欠ローラ１０、押え板１１、給紙ロ
ーラ１２、分離ローラ１３、フイードローラ１
４，１５を備え、原稿スタツカ９上の原稿６を一
枚ずつ分離して搬送装置２に送り込むようになつ
ている。
反転経路８にはストツパ１６、出入検知センサ
１７、フイードローラ１８，１９、軸２０を中心
に回動する反転部材２１、この反転部材２１に取
り付けられた搬送ローラ２２からなる搬送手段、
軸２０を中心に回動する反転ローラ２３、搬送ロ
ーラ２２と対向する補助ローラ２４、反転ローラ
２３と対向する補助ローラ２５、軸２６を中心に
回動するゲートレバー２７、軸２８を中心に回動
する搬送ガイド２９、この搬送ガイド２９に取り
付けられ、上記搬送ローラ２２と対向した補助ロ
ーラ３０を備えている。またゲートレバー２７の
下方には複写が終了した原稿６を収容する、収容
スタツカ３１が設けられている。
上記のような構成において、搬送ガイド２９は
第２図および第３図に示すように、内側に原稿の
幅方向に山形状の凹部を有する、複数のリブ３２
が設けられている。なおリブ３２は原稿サイズを
考慮して、各種サイズの原稿の横幅に接触しない
位置に取り付けられている。そしてこれらのリブ
３２間には、搬送ローラ２２からなる搬送手段と
接する補助ローラ３０が保持板３３を介して取り
付けられている。また、これら補助ローラ３０の
上流側には、補助ローラ３０の回転中心から周面
までの範囲に、上記搬送手段側へ突出した補助リ
ブ３４が、所定の傾斜角度θで設けられている。
上記実施例によれば、搬送ガイド２９の内側に
複数の原稿サイズを考慮して、各種サイズの原稿
６の横幅に接触しない位置に複数のリブ３２を設
けたので、原稿６の横幅がリブ３２に接触するこ
とがなく、原稿６が傾いたりよじれたりすること
がない。
またこれらのリブ３２間に設けられた補助ロー
ラ３０の上流側に補助リブ３４を設けたので、リ
ブ間隔が短くなり、補助ローラ３０の上流側にお
ける原稿６のたわみが少なくなるために、原稿６
が補助ローラ３０の内側にもぐり込むこともなく
なり、用紙先端の損傷やスキユーの発生を防止で
きる。
さらに、補助リブ３４を補助ローラ３０の回転
中心から周面までの範囲に、上記搬送手段側へ突
出させたので、補助ローラ３０に原稿６の先端が
当接しても接触角が鈍角となるため、一層補助ロ
ーラ３０の内側へ原稿６がもぐり込みにくい。
An embodiment of this invention will be described below with reference to the drawings. First, as shown in FIG. 1, a conveying device 2 is provided on a document setting surface 1 of a copying machine. This conveying device 2 is constructed by, for example, an endless belt 5 stretched between pulleys 3 and 4 disposed on both the left and right ends of the original setting surface 1, and the endless belt 5 slides on the original setting surface 1 to copy the original. 6. At one end of this conveying device 2 is a supply table 7 for the original 6.
However, a reversing path 8 for the original document 6 is connected to the other end. The supply table 7 for the document 6 includes a document stacker 9, a notch roller 10, a presser plate 11, a paper feed roller 12, a separation roller 13, and a feed roller 1.
4 and 15, the originals 6 on the original stacker 9 are separated one by one and sent to the conveying device 2. The reversing path 8 includes a stopper 16, an entry/exit detection sensor 17, feed rollers 18, 19, a reversing member 21 that rotates around a shaft 20, and a transport means consisting of a transport roller 22 attached to the reversing member 21.
A reversing roller 23 rotates around a shaft 20, an auxiliary roller 24 faces the conveyance roller 22, an auxiliary roller 25 faces the reversing roller 23, a gate lever 27 rotates around a shaft 26, and a gate lever 27 rotates around a shaft 28. The apparatus includes a moving conveyance guide 29 and an auxiliary roller 30 attached to the conveyance guide 29 and facing the conveyance roller 22 . Further, a storage stacker 31 is provided below the gate lever 27 to store the original 6 that has been copied. In the above configuration, the conveyance guide 29 has a plurality of ribs 32 each having a mountain-shaped recess in the width direction of the original, as shown in FIGS. 2 and 3.
is provided. Note that the ribs 32 are attached at positions that do not touch the widths of originals of various sizes, taking into consideration the original size. Further, between these ribs 32, an auxiliary roller 30 is attached via a holding plate 33, so as to be in contact with the conveyance means consisting of the conveyance roller 22. Further, on the upstream side of these auxiliary rollers 30, an auxiliary rib 34 is provided in a range from the rotation center of the auxiliary roller 30 to the circumferential surface thereof, and projects toward the conveyance means side at a predetermined inclination angle θ. According to the above embodiment, a plurality of ribs 32 are provided inside the conveyance guide 29 at positions that do not touch the widths of documents 6 of various sizes in consideration of a plurality of document sizes. The document 6 is not tilted or twisted. Further, since the auxiliary ribs 34 are provided on the upstream side of the auxiliary roller 30 provided between these ribs 32, the interval between the ribs is shortened, and the deflection of the original 6 on the upstream side of the auxiliary roller 30 is reduced.
This prevents the paper from slipping into the inside of the auxiliary roller 30, thereby preventing damage to the leading edge of the paper and occurrence of skew. Furthermore, since the auxiliary rib 34 is made to protrude toward the conveyance means side in the range from the rotation center to the peripheral surface of the auxiliary roller 30, even if the leading edge of the document 6 contacts the auxiliary roller 30, the contact angle becomes obtuse. , it is even more difficult for the original 6 to slip into the inside of the auxiliary roller 30.
このような構成において、原稿６の搬送は先ず
原稿スタツカ９上の原稿６が切欠ローラ１０によ
り送り出され、給紙ローラ１２と分離ローラ１３
とで一枚ずつに分離される。そしてフイードロー
ラ１４，１５を介して搬送装置２に供給され、原
稿セツト面１上を原稿６がストツパ１６に接する
まで搬送される。そして原稿６の複写が行われ、
終了するとストツパ１６が回動して原稿６の停止
が解除され、ベルト５により反転経路へ送られ
る。
原稿６はフイードローラ１８と１９の間、搬送
ローラ２２からなる搬送手段と補助ローラ２４の
間、搬送ローラ２３と補助ローラ２５の間、ゲー
トレバー２７、搬送ガイド２９、搬送ローラ２２
と補助ローラ３０の間を通つて再び原稿セツト面
１上に搬送される。そして原稿６を後戻りさせて
ストツパ１６で係止する。そして原稿６の裏面の
複写が行われる。
複写が終了すると、再度反転経路８で反転さ
れ、また原稿セツト面１上に搬送される。これに
より、原稿６は原稿スタツカ９上にあつたときと
同じ状態になる。
この原稿６は、再々度反転経路８に供給され
る。その際、ゲートレバー２７は左回転され、収
容スタツカ３１へのゲートが開く。したがつて、
反転経路８に入つた原稿６は、補助ローラ２５の
ところから収容スタツカ３１側へ進路変更されて
収容される。これにより一枚の原稿６の両面複写
が完了する。
なお、反転経路８に原稿６が詰まつたときに
は、搬送ガイド２９および反転部材２１を軸２
８，２０を中心に回転させて開放し、原稿６を取
り出して処理する。
以上、この考案の一実施例について説明した
が、この考案は上記実施例に限定されるものでは
ない。
例えば前記実施例では複写機の給紙装置におけ
る搬送ガイド２９を中心に説明したが、コピー用
紙の給紙経路などにおける搬送ガイドがリブおよ
び補助ローラを備えている場合には、この考案を
適用できる。
また画像形成装置として複写機を示したが、レ
ーザプリンタやフオトプリンタ、液晶プリンタな
どにも適用可能である。
In such a configuration, the document 6 is conveyed by first feeding the document 6 on the document stacker 9 by the notched roller 10 and then by the paper feed roller 12 and the separation roller 13.
It is separated into pieces one by one. The document 6 is then fed to the conveying device 2 via feed rollers 14 and 15, and conveyed on the document setting surface 1 until the document 6 contacts a stopper 16. Then, manuscript 6 is copied,
When this is completed, the stopper 16 rotates to release the stoppage of the document 6, and the document 6 is sent to the reversing path by the belt 5. The document 6 is placed between the feed rollers 18 and 19, between the transport means consisting of the transport roller 22 and the auxiliary roller 24, between the transport roller 23 and the auxiliary roller 25, the gate lever 27, the transport guide 29, and the transport roller 22.
and the auxiliary roller 30, and are again conveyed onto the document setting surface 1. Then, the document 6 is moved back and stopped by the stopper 16. Then, the back side of the original 6 is copied. When the copying is completed, the document is again reversed on the reversing path 8 and conveyed onto the document setting surface 1 again. As a result, the original 6 is placed in the same state as when it was placed on the original stacker 9. This document 6 is supplied to the reversing path 8 again and again. At this time, the gate lever 27 is rotated to the left, and the gate to the storage stacker 31 is opened. Therefore,
The document 6 that has entered the reversing path 8 is changed course from the auxiliary roller 25 to the storage stacker 31 side and is stored therein. This completes duplex copying of one sheet of original 6. Note that when the document 6 is jammed in the reversing path 8, the conveyance guide 29 and the reversing member 21 are moved to the shaft 2.
8 and 20 to open it, and the document 6 is taken out and processed. Although one embodiment of this invention has been described above, this invention is not limited to the above embodiment. For example, in the embodiment described above, the explanation was centered on the conveyance guide 29 in the paper feeding device of a copying machine, but this invention can be applied when the conveyance guide in the paper feeding path of copy paper is provided with ribs and auxiliary rollers. . Furthermore, although a copying machine is shown as an image forming apparatus, it is also applicable to laser printers, photo printers, liquid crystal printers, and the like.
以上説明したようにこの考案によれば、搬送経
路に対向して設けられた搬送ガイド本体の内側
に、用紙の幅方向に複数のリブを並設し、かつこ
れらリブ間に前記搬送経路に設けられた搬送手段
に当接するように補助ローラを軸設し、この補助
ローラの上流側近傍に、この補助ローラの回転中
心から周面までの範囲に、上記搬送手段側へ突出
する補助リブを設けて搬送ガイドを構成したの
で、補助リブにより補助ローラの上流側における
用紙のたわみが少なくなり、このため用紙が補助
ローラの内側にもぐり込むことがなくなり、用紙
が損傷することなく確実に搬送できる給紙装置を
得ることができる。
As explained above, according to this invention, a plurality of ribs are arranged in parallel in the width direction of the paper on the inside of the transport guide body provided opposite to the transport path, and the ribs are provided in the transport path between these ribs. An auxiliary roller is provided in the vicinity of the upstream side of the auxiliary roller so as to come into contact with the conveyance means, and an auxiliary rib that protrudes toward the conveyance means is provided in the range from the rotation center of the auxiliary roller to the circumferential surface of the auxiliary roller. Since the conveyance guide is configured with auxiliary ribs, the deflection of the paper on the upstream side of the auxiliary roller is reduced, so the paper does not slip inside the auxiliary roller, and the paper can be fed reliably without being damaged. You can get the equipment.
第１図ないし第３図は、この考案の一実施例を
説明するためのもので、第１図が給紙装置の概略
構成を説明するための模式図、第２図は搬送ガイ
ド２９の拡大底面図、第３図はその断面図であ
る。
２９……搬送ガイド、３０……補助ローラ、３
２……リブ、３３……保持板、３４……補助リ
ブ。
1 to 3 are for explaining one embodiment of this invention. FIG. 1 is a schematic diagram for explaining the general structure of the paper feeding device, and FIG. 2 is an enlarged view of the conveyance guide 29. The bottom view and FIG. 3 are sectional views thereof. 29...Conveyance guide, 30...Auxiliary roller, 3
2... Rib, 33... Holding plate, 34... Auxiliary rib.
Claims (1)
る給紙装置において、 (1) 上記搬送経路に対向して設けられた搬送ガイ
ド本体、 (2) 上記搬送ガイド本体の内側に、用紙の幅方向
に並設した複数のリブ、 (3) 上記リブ間において上記搬送手段と対向して
当接するように軸設した補助ローラ、 (4) 上記補助ローラの上流側近傍に、補助ローラ
の回転中心から周面までの範囲に、上記搬送手
段側へ突出して設けられた補助リブ、 以上からなる搬送ガイドを備えたことを特徴と
する給紙装置。[Scope of Claim for Utility Model Registration] A paper feeding device that feeds paper along a conveying path by a conveying means, comprising: (1) a conveying guide body provided opposite to the conveying path; (2) the conveying guide body a plurality of ribs arranged in parallel in the width direction of the paper on the inside of the paper; (3) an auxiliary roller whose axis is disposed between the ribs so as to face and abut against the conveyance means; (4) near the upstream side of the auxiliary roller. A paper feeding device comprising: an auxiliary rib provided in a range from the center of rotation of the auxiliary roller to the circumferential surface of the auxiliary roller so as to protrude toward the conveyance means; and a conveyance guide consisting of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984189058U JPH056302Y2 (en) | 1984-12-13 | 1984-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984189058U JPH056302Y2 (en) | 1984-12-13 | 1984-12-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61105350U JPS61105350U (en) | 1986-07-04 |
| JPH056302Y2 true JPH056302Y2 (en) | 1993-02-18 |
Family
ID=30746517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984189058U Expired - Lifetime JPH056302Y2 (en) | 1984-12-13 | 1984-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056302Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2545362Y2 (en) * | 1988-11-08 | 1997-08-25 | 沖電気工業株式会社 | Automatic paper feeder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150741A (en) * | 1974-10-29 | 1976-05-04 | Ricoh Kk | TENSHASHII TOANNAISOCHI |
| JPS5936041A (en) * | 1982-08-23 | 1984-02-28 | Canon Inc | Feed attachment and image forming device with said feed attachment |
| JPS5930155B2 (en) * | 1979-10-02 | 1984-07-25 | 日立プラント建設株式会社 | Sewage purification equipment |
| JPS6026560A (en) * | 1983-07-22 | 1985-02-09 | Canon Inc | Sheet feeding device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5630827Y2 (en) * | 1977-12-20 | 1981-07-22 | ||
| JPH0345233Y2 (en) * | 1981-03-10 | 1991-09-25 | ||
| JPS5930155U (en) * | 1982-08-17 | 1984-02-24 | キヤノン株式会社 | Image forming device |
-
1984
- 1984-12-13 JP JP1984189058U patent/JPH056302Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150741A (en) * | 1974-10-29 | 1976-05-04 | Ricoh Kk | TENSHASHII TOANNAISOCHI |
| JPS5930155B2 (en) * | 1979-10-02 | 1984-07-25 | 日立プラント建設株式会社 | Sewage purification equipment |
| JPS5936041A (en) * | 1982-08-23 | 1984-02-28 | Canon Inc | Feed attachment and image forming device with said feed attachment |
| JPS6026560A (en) * | 1983-07-22 | 1985-02-09 | Canon Inc | Sheet feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61105350U (en) | 1986-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5092579A (en) | Mechanism for preventing skew of cut paper sheet | |
| JPH0379536A (en) | Automatic original transporting device | |
| JPH056302Y2 (en) | ||
| JPH06166451A (en) | Paper sheet registration device | |
| JP2575700B2 (en) | Automatic document feeder | |
| JP3330724B2 (en) | Paper feeder | |
| JPH0541539B2 (en) | ||
| JPH0445041A (en) | Paper matching device for image former | |
| JPH0427139B2 (en) | ||
| JPH0780592B2 (en) | Sheet material transfer device | |
| JPH058886A (en) | Document conveying device | |
| JPS6221665A (en) | Document feed device | |
| JP2849847B2 (en) | Paper feeder | |
| JP3372774B2 (en) | Paper bundle transport device | |
| JPH089089Y2 (en) | Image forming device | |
| JPS6097161A (en) | Sheet turnover device | |
| JP3161778B2 (en) | Paper feeder | |
| JPH0326633A (en) | Sheet material transfer device | |
| JPH10203693A (en) | Automatic document carrying device | |
| JP2520205Y2 (en) | Sheet transfer device | |
| JPS59230956A (en) | Supply and exhaust device for paper sheets | |
| JPS58194055A (en) | Copying machine | |
| JPH03196055A (en) | Automatic document feeder | |
| JPS6214172A (en) | Automatic both side copying machine | |
| JPS6265862A (en) | Automatic original feeding device |