JPS5822239A - Sheet conveyer - Google Patents
Sheet conveyerInfo
- Publication number
- JPS5822239A JPS5822239A JP11599481A JP11599481A JPS5822239A JP S5822239 A JPS5822239 A JP S5822239A JP 11599481 A JP11599481 A JP 11599481A JP 11599481 A JP11599481 A JP 11599481A JP S5822239 A JPS5822239 A JP S5822239A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sheet material
- arm
- conveyance
- conveyed
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
- B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
- B65H5/025—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between belts and rotary means, e.g. rollers, drums, cylinders or balls, forming a transport nip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/33—Modifying, selecting, changing orientation
- B65H2301/331—Skewing, correcting skew, i.e. changing slightly orientation of material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Registering Or Overturning Sheets (AREA)
Abstract
Description
【発明の詳細な説明】
トを搬送する機構を具備する機械等（以下複写機等とい
う）のシート搬送装置に関するもので、特に、シートの
搬送方向変更後も安定した搬送ができるシート搬送装置
に関するものである。Detailed Description of the Invention The present invention relates to a sheet conveying device for a machine, etc. (hereinafter referred to as a copying machine) equipped with a mechanism for conveying a sheet, and in particular, to a sheet conveying device that can stably convey the sheet even after changing the conveying direction of the sheet. It is something.
従来、この棟の装置においては、シートにそのシートの
搬送方向く搬送力を与えておき、シート搬送方向を変更
する場合にはそのシート搬送下流側でシート搬送手段を
シートの幅方向に対して一定角度変位させて変向させて
いた。しかしながらシート搬送の上流側と下流側にある
シート搬送手段のシート搬送方向が異なるために、この
間においてシートのねじれにより変則的ループ吟が発生
して、例えば複写機等における定着前のシートでは画像
が飛散したり、或は定着ローラの通過によりシワ等が発
生しやすい欠点を有していた。Conventionally, in this type of equipment, a conveyance force is applied to the sheet in the sheet conveyance direction, and when the sheet conveyance direction is changed, the sheet conveyance means is moved in the sheet width direction on the downstream side of the sheet conveyance. The direction was changed by displacing it by a certain angle. However, since the sheet conveyance directions of the sheet conveyance means on the upstream and downstream sides of the sheet conveyance are different, an irregular loop occurs due to sheet twisting during this time, and for example, an image on a sheet before fixing in a copying machine, etc. This has the disadvantage that wrinkles are likely to occur due to scattering or passage of the fixing roller.
そこで、本発明はこのような欠点に鑑みて改良された新
規なシート搬送装置を提供することを目的とするもので
ある。Therefore, an object of the present invention is to provide a novel sheet conveying device that is improved in view of these drawbacks.
本発明の別の目的はシートの搬送方向がシートの幅方向
に斜行してもその搬送方向に追従して安定搬送を保持さ
せるシート搬送装置を提供することである。Another object of the present invention is to provide a sheet conveyance device that follows the conveyance direction of the sheet and maintains stable conveyance even if the sheet conveyance direction skews in the width direction of the sheet.
即ち、上記目的を達成できる本発明の主要な構成は、シ
ートを搬送手段により搬送して、その途中からシート搬
送方向を変向するシート搬送装置で、シートを前進させ
る第１のシート搬送手段と、該シート搬送方向下流側に
配置され、該第１のシート搬送手段により搬送されてく
るシートをシート幅方向にその搬送方向を変向する第２
のシート搬送手段とを崩し、該ｗＸ１’のシート搬送手
段が搬送されるシートの搬送方向に従動して、その搬送
方向が可変に構成されていることを特徴としたシート搬
送装置である。That is, the main structure of the present invention that can achieve the above object is a sheet conveying device that conveys a sheet by a conveying means and changes the sheet conveying direction from the middle, and a first sheet conveying means that advances the sheet; , a second sheet conveying means disposed on the downstream side in the sheet conveying direction and changing the conveying direction of the sheet conveyed by the first sheet conveying means in the sheet width direction.
This sheet conveying device is characterized in that the sheet conveying means wX1' is configured to follow the conveying direction of the sheet to be conveyed so that the conveying direction thereof is variable.
以下、本発明の一実施例として電子写真複写機を例にと
り、本発明を図面に従って詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings, taking an electrophotographic copying machine as an example of an embodiment of the present invention.
第１図は本発明の一実施例を適用したシート材の搬送路
の要部を示す断面図で、図中１は矢印方向に回転する感
光ドラムである。該ドラムは光導電層を有している。な
お、潜像形成手段・現像手段・及び転写後の残留トナー
を除去するクリーニング手段は図に示していない。一方
、上記感光ドラム１の像に同期して搬送されるシート材
は、下部に設けられたカセット２内の底板’５１ＫＩ４
ｙ積されており、該底板捷はばね４により少なくとも給
送時上方に押し上げられ、シート材６の高さは分離爪５
により一定に保たれている。上記シート材６は、円周の
一部を切欠いたピックアップローラ７が回転することに
より、上記カセット２から一枚ずつ送り出される。送り
出されたシート材はカイト板８・９に案内され、スリッ
プ搬送手段１゜１５に導かれて転写材６はドラム１に至
る。−Ｆ記ドラム１の端部には分離ベルト１６が取付け
られており、シート材６の一端はドラム１から剥離され
た状態で、コロナ放電器１７からの放電で電位が加えら
れ、ドラム１上のトナー像をシート材に転写する。転写
後、シート材は上記ベルト１６によりドラム１から分離
され、搬送ベルト手段１８により定着手段１９に搬送さ
れる。そして定着手段１９を介してトナー像を定着され
たシート材◆ζ機外に搬出される。FIG. 1 is a cross-sectional view showing a main part of a sheet material conveyance path to which an embodiment of the present invention is applied, and 1 in the figure is a photosensitive drum rotating in the direction of the arrow. The drum has a photoconductive layer. Note that the latent image forming means, developing means, and cleaning means for removing residual toner after transfer are not shown in the figure. On the other hand, the sheet material conveyed in synchronization with the image on the photosensitive drum 1 is placed on the bottom plate '51KI4 in the cassette 2 provided at the bottom.
The bottom plate is pushed upward at least during feeding by the spring 4, and the height of the sheet material 6 is equal to the height of the separation claw 5.
is kept constant. The sheet material 6 is fed out one by one from the cassette 2 by rotation of a pickup roller 7 whose circumference is partially cut out. The sent-out sheet material is guided by kite plates 8 and 9, and guided by slip conveyance means 1.degree. 15, whereupon the transfer material 6 reaches the drum 1. - F A separation belt 16 is attached to the end of the drum 1, and one end of the sheet material 6 is peeled off from the drum 1, and a potential is applied by discharge from the corona discharger 17, and the sheet material 6 is placed on the drum 1. transfer the toner image onto the sheet material. After the transfer, the sheet material is separated from the drum 1 by the belt 16 and conveyed to the fixing means 19 by the conveyor belt means 18. Then, the sheet material ◆ζ having the toner image fixed thereon is carried out of the machine via the fixing means 19.
第２図は第１図の搬送ベルト手段の平面図で、搬送ベル
ト手段１８はベルト駆動軸２１の回転により搬送ベルト
２６が矢印の方向に移動し従動軸２２な回転する。ドラ
ム１から転写分離されたシート６は搬送手段１８まで搬
送されて来て移動する搬送ベル）２３にのり定着器１９
へと搬送される。搬送ベルト２３上で更に搬送力をアッ
プするため、シート材を移動する搬送ベル）２！ｔＫ押
しつけるピンチローラ（第１のシート搬送手段）２４が
取り付けられている。定着器１９の前まで直進して来た
シート６は定着器１９の傾きにより矢印Ｂ方向に斜行す
る。そこで斜行始めた所でピンチ＾
ローラ２４がシート６の傾き方向と同方向の向きに変化
できるように可変となっている。FIG. 2 is a plan view of the conveyor belt means of FIG. 1, in which the conveyor belt 26 of the conveyor belt means 18 moves in the direction of the arrow as the belt drive shaft 21 rotates, and the driven shaft 22 rotates. The sheet 6 that has been transferred and separated from the drum 1 is conveyed to the conveyance means 18, and is placed on a moving conveyor belt (23) to be transferred to the fixing device 19.
transported to. In order to further increase the conveying force on the conveyor belt 23, a conveyor belt that moves the sheet material) 2! A pinch roller (first sheet conveying means) 24 that presses the sheet tK is attached. The sheet 6 that has traveled straight ahead of the fixing device 19 is skewed in the direction of arrow B due to the inclination of the fixing device 19. Then, at the point where the sheet 6 starts to be skewed, a pinch occurs. The roller 24 is variable so that it can change its direction in the same direction as the direction in which the sheet 6 is tilted.
第６図及び第４図はそのピンチローラ２４の構造で断面
図とその下面図を示す。シート押えａ −ラ３０がアー
ム！１１に回転自在に取り付けられ、更にそのアーム６
１も軸３２に回転自在に取り付けられている。軸！１２
は装置に固定されている支持台３３に上下方向の移動が
自由自在に取り付けられているため間に組込まれている
圧縮バネ６４により、ローラ３０が常に下方に押しつけ
られ、シート材によりローラ３０の回転及びアーム６１
の向きも自由に変わる構造を有している。シート材が搬
送されてくる前は移動する搬送ベルト２６に対してロー
ラ６０が最も抵抗の少ない方向に向うとするためそのロ
ーラ３０を受けているアーム３１は搬送ベルト２６と平
行な向きに保たれる。6 and 4 show a cross-sectional view and a bottom view of the structure of the pinch roller 24. Sheet presser a-ra 30 is the arm! The arm 6 is rotatably attached to the arm 6.
1 is also rotatably attached to the shaft 32. shaft! 12
is attached to a support stand 33 fixed to the device so that it can move freely in the vertical direction, so the roller 30 is always pressed downward by the compression spring 64 built in between, and the roller 30 is held down by the sheet material. Rotation and arm 61
It has a structure in which the direction of the wire can be changed freely. Before the sheet material is conveyed, the arm 31 that receives the roller 30 is kept parallel to the conveyor belt 26 so that the roller 60 faces the direction of least resistance against the moving conveyor belt 26. It will be done.
とこで搬送ベルト２５とローラ３０間にシート材が搬送
し【来た所では、シート材が直進しているためアーム６
１の方向が変化せずにシートを搬送するが、更に直進し
て定着器１９にかみ合った時シート材の進行方向が変わ
ることになり、回転自在に取り付けられているアーム６
１がシートの進行に平行に回転し始め、定着器１９によ
るシートの進行方向と平行な方向にアーム５１が向き、
同方向の搬送力を与えるととＫなる。At this point, the sheet material is conveyed between the conveyor belt 25 and the rollers 30.
The sheet is conveyed without changing the direction of the sheet material 1, but when the sheet material advances straight and engages with the fixing device 19, the traveling direction of the sheet material changes.
1 begins to rotate in parallel to the direction in which the sheet advances, and the arm 51 is oriented in a direction parallel to the direction in which the sheet is advanced by the fixing device 19.
When a conveying force in the same direction is applied, it becomes K.
以上、説明した如く、本発明の構成によれば、搬送され
るシートの搬送方向が変向する場合にもシートのねじれ
、変則的ループの発生を防止することができ、特に複写
機等の定着器等に利用された場合にはねじれ、変則的ル
ープ等による画像の＾散、或はシートのシワ婢の発生を
防止することができるものである。As described above, according to the configuration of the present invention, it is possible to prevent sheet twisting and irregular loops even when the conveying direction of the conveyed sheet changes, and in particular, it is possible to prevent the occurrence of irregular loops in the fixing machine of a copying machine, etc. When used in containers, etc., it is possible to prevent image scattering or sheet wrinkles due to twisting, irregular loops, etc.
なお、本発明のシート搬送装置を利用することにより、
ねじれ、変則的ループの発生を防止して１Ｍｈ送りがで
きるから、安定したシート搬送状態にして、第２搬送手
段にシートを斜行送りによりその端部から加えることが
でき、特に圧力定着器等に生じる急激なトルク変動、衝
撃等をも防止することができる。Note that by using the sheet conveying device of the present invention,
Since 1Mh feeding is possible while preventing the occurrence of twists and irregular loops, the sheet can be conveyed in a stable state, and the sheet can be applied to the second conveying means from the end by diagonal feeding. It is also possible to prevent sudden torque fluctuations, shocks, etc. that occur when
第１図は本発明を適用した複写機のシート搬送部な示す
断面図、第２図はシート搬送ベルト手段部の平面図、第
６図はピンチローラ部の断面図、第４図はその底面図で
ある。
図において、１８は搬送ベルト手段、１９は定着手段（
第２のシート搬送手段）、２４はピンチローラ（第１の
シート搬送手段）、５０はローラ、出願人 キャノン株
式会社
代理人 丸 島 儀 −ブゴ
ト、 ＪFIG. 1 is a sectional view showing the sheet conveying section of a copying machine to which the present invention is applied, FIG. 2 is a plan view of the sheet conveying belt means section, FIG. 6 is a sectional view of the pinch roller section, and FIG. 4 is a bottom view thereof. It is a diagram. In the figure, 18 is a conveyor belt means, 19 is a fixing means (
24 is a pinch roller (first sheet conveying means), 50 is a roller, Applicant: Canon Co., Ltd. Agent: Gi Marushima - Bugoto, J
Claims (1)
搬送方向を変向するシート搬送装置において、 シートを前進させる第１のシート搬送手段と、該シート
搬送方向下流側に配置され、該第１のシート搬送手段に
より搬送されてくるシートをシート幅方向にその搬送方
向を変向する第２のシート搬送手段とを有し、 該第１のシート搬送手段が搬送されるシートの搬送方向
に従動じ【、その搬送方向が可変に構成されていること
を特徴としたシート搬送装置。[Scope of Claims] A sheet conveying device that conveys a sheet from a conveying means and changes the sheet conveying direction halfway there, comprising: a first sheet conveying means for advancing the sheet; and a first sheet conveying means downstream in the sheet conveying direction. and a second sheet conveying means that changes the conveying direction of the sheet conveyed by the first sheet conveying means in the sheet width direction, and the first sheet conveying means is conveyed. A sheet conveyance device characterized in that the conveyance direction is variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11599481A JPS5822239A (en) | 1981-07-24 | 1981-07-24 | Sheet conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11599481A JPS5822239A (en) | 1981-07-24 | 1981-07-24 | Sheet conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5822239A true JPS5822239A (en) | 1983-02-09 |
Family
ID=14676217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11599481A Pending JPS5822239A (en) | 1981-07-24 | 1981-07-24 | Sheet conveyer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5822239A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856770A (en) * | 1986-01-17 | 1989-08-15 | Benson S.A. | Pressure wheel device for moving a print medium in a plotter or printer |
| US4862215A (en) * | 1985-06-18 | 1989-08-29 | Canon Kabushiki Kaisha | Image forming apparatus |
| FR2720535A1 (en) * | 1994-05-30 | 1995-12-01 | Cga Hbs | Machine reader for information on envelopes for postal sorting |
| EP0864516A2 (en) * | 1997-03-15 | 1998-09-16 | MAN Roland Druckmaschinen AG | Feed table |
| EP1153866A3 (en) * | 2000-05-10 | 2003-08-06 | MAN Roland Druckmaschinen AG | Feed table |
-
1981
- 1981-07-24 JP JP11599481A patent/JPS5822239A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4862215A (en) * | 1985-06-18 | 1989-08-29 | Canon Kabushiki Kaisha | Image forming apparatus |
| US4856770A (en) * | 1986-01-17 | 1989-08-15 | Benson S.A. | Pressure wheel device for moving a print medium in a plotter or printer |
| FR2720535A1 (en) * | 1994-05-30 | 1995-12-01 | Cga Hbs | Machine reader for information on envelopes for postal sorting |
| EP0864516A2 (en) * | 1997-03-15 | 1998-09-16 | MAN Roland Druckmaschinen AG | Feed table |
| EP0864516A3 (en) * | 1997-03-15 | 1999-04-14 | MAN Roland Druckmaschinen AG | Feed table |
| EP1153866A3 (en) * | 2000-05-10 | 2003-08-06 | MAN Roland Druckmaschinen AG | Feed table |
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