JPH0776067B2 - Sheet transport device - Google Patents

Sheet transport device

Info

Publication number
JPH0776067B2
JPH0776067B2 JP57115842A JP11584282A JPH0776067B2 JP H0776067 B2 JPH0776067 B2 JP H0776067B2 JP 57115842 A JP57115842 A JP 57115842A JP 11584282 A JP11584282 A JP 11584282A JP H0776067 B2 JPH0776067 B2 JP H0776067B2
Authority
JP
Japan
Prior art keywords
roller
transfer material
protrusion
sheet
discharge
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
Application number
JP57115842A
Other languages
Japanese (ja)
Other versions
JPS597660A (en
Inventor
基忠 鳥海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP57115842A priority Critical patent/JPH0776067B2/en
Publication of JPS597660A publication Critical patent/JPS597660A/en
Publication of JPH0776067B2 publication Critical patent/JPH0776067B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/133—Limited number of active elements on common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/181—Rollers composed of several layers with cavities or projections at least at one layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/185—Rollers composed of several layers easy deformable

Landscapes

  • Pile Receivers (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Description

【発明の詳細な説明】 本発明は、複写機あるいは記録機等の画像形成機に適用
されるシート搬送装置に関する。The present invention relates to a sheet conveying device applied to an image forming machine such as a copying machine or a recording machine.

以下、シート搬送装置として複写機のシート排出装置を
例にあげて説明する。The sheet discharging device of the copying machine will be described as an example of the sheet conveying device.

複写機では、定着器を通過し画像を定着されたシート
（転写紙・複写紙・プラスチツク薄板等，以下転写材と
称す）を、排出ローラ対を用いて複写機本体外へ排出す
る。第１図に、従来の排出ローラ対の一例を示す。In a copying machine, a sheet (transfer paper, copying paper, plastic thin plate, etc., hereinafter referred to as a transfer material) on which an image is fixed after passing through a fixing device is discharged to the outside of the copying machine main body using a pair of discharge rollers. FIG. 1 shows an example of a conventional discharge roller pair.

第１図に示すように、定着器を通過して転写材Ｐは、矢
印方向に回転するローラ対１・２により、第１図におい
ては左側に排出される。しかし、転写材Ｐの後端がロー
ラ１・２の接触部分を通り過ぎると、転写材Ｐには自重
によるローラ１からの摩擦力しか働かず、ローラ１上に
転写材Ｐが載つたままの状態になることがある。この状
態では、続いて搬送されてくる転写材Ｐ′が、先の転写
材Ｐの強制的に押し出すので排出された転写材が不揃い
に積載されることがある。あるいは先の転写材Ｐの下
に、次の転写材Ｐ′が入り込んで、転写材の順番が狂う
ことがある。さらには、次の転写材Ｐ′の排出が邪魔さ
れて、転写材詰りを起こしたりする。また、排紙検知の
センサーが排出ローラ対の外側近傍にある場合、センサ
ーが転写材の存在を検知した状態が続くことになり、転
写材詰りと判断されて転写機が停止してしまうことも考
えられる。As shown in FIG. 1, the transfer material P passing through the fixing device is discharged to the left side in FIG. 1 by the roller pair 1 and 2 rotating in the arrow direction. However, when the trailing edge of the transfer material P passes through the contact portion between the rollers 1 and 2, only the frictional force from the roller 1 due to its own weight acts on the transfer material P, and the transfer material P remains on the roller 1. May become. In this state, the subsequently transferred transfer material P ′ is forcibly pushed out of the previous transfer material P, so that the discharged transfer material P may be unevenly stacked. Alternatively, the next transfer material P ′ may get under the previous transfer material P, and the order of the transfer materials may be out of order. Furthermore, the discharge of the next transfer material P ′ is hindered and the transfer material is clogged. Also, if the paper discharge detection sensor is located near the outside of the discharge roller pair, the sensor continues to detect the presence of the transfer material, and the transfer machine may stop due to the judgment that the transfer material is clogged. Conceivable.

本発明は、前記従来装置の問題点を解消するもので、確
実にシートの搬送を行なうことができるとともに、シー
トの厚手・薄手に係わりなくシートに跡を付けずにシー
トの搬送を行なうことのできるシート搬送装置を提供す
るものである。The present invention solves the above-mentioned problems of the conventional apparatus, and can reliably convey a sheet and convey the sheet without making a mark regardless of whether the sheet is thick or thin. The present invention provides a sheet conveying device that can be used.

さらに本発明は、材料選択の自由度および設計の自由度
が増すシート搬送装置を提供することを目的とする。A further object of the present invention is to provide a sheet conveying device having increased flexibility in material selection and design.

上記目的を達成する本発明の構成は、 第１のローラと第２のローラとの間にシートを挟持して
搬送するシート搬送装置において、 前記第１のローラの端部の外周面で、前記第２のローラ
と対向しない位置に複数の突起を周方向に間隔をおいて
設け、 前記突起が前記第１のローラの回転中心に近付く方向に
弾性的に変位できるように、前記第１のローラの回転中
心と前記突起との間で前記第２のローラに対向しない位
置に、側方に開放した空間を形成したことを特徴とする
シート搬送装置である。The configuration of the present invention that achieves the above object is a sheet conveying device that sandwiches and conveys a sheet between a first roller and a second roller, wherein the outer peripheral surface of the end portion of the first roller is A plurality of protrusions are provided at intervals in the circumferential direction at positions that do not face the second roller, and the first roller is elastically displaceable in a direction toward the rotation center of the first roller. The sheet conveying device is characterized in that a space opened laterally is formed between the rotation center and the protrusion so as not to face the second roller.

以下、図面を用いて本発明の一実施例を説明する。An embodiment of the present invention will be described below with reference to the drawings.

まず、第２図を用いて本発明の一実施例を適用したシー
ト搬送装置を備えた複写機について説明する。First, a copying machine equipped with a sheet conveying device to which an embodiment of the present invention is applied will be described with reference to FIG.

図において、８はガラス等の透明部材よりなる原稿載置
台で、レールＲ上を矢印ａ方向に往復動する。９は集束
性光伝送体で、原稿載置台８上に載置され、照明ランプ
Ｌによつて照射された原稿Ｏの反射光像を感光ドラム10
上にスリツト露光するためのものである。また感光ドラ
ム10は周面に感光層を有しており、矢印ｂ方向に回転す
る。11は帯電器で、感光ドラム10に一様に帯電を施す。
さらに12は現像器である。そこで帯電器11により一様に
帯電された感光ドラム10上に、集束性光伝導体９を介し
て静電潜像が形成され、その後、該静電潜像は現像器12
によって顕像化される。In the figure, reference numeral 8 is a document placing table made of a transparent member such as glass, which reciprocates on the rail R in the direction of arrow a. Reference numeral 9 denotes a converging light transmission body, which is placed on the original placing table 8 and reflects the reflected light image of the original O illuminated by the illumination lamp L onto the photosensitive drum 10.
It is for the slit exposure. The photosensitive drum 10 has a photosensitive layer on its peripheral surface and rotates in the direction of arrow b. Reference numeral 11 denotes a charger, which uniformly charges the photosensitive drum 10.
Further, 12 is a developing device. Then, an electrostatic latent image is formed on the photosensitive drum 10 uniformly charged by the charger 11 via the converging photoconductor 9, and then the electrostatic latent image is developed by the developing unit 12.
Is visualized by.

一方、シート積載台16上の転写材Ｐは、給送ローラ13a
・13b及び感光ドラム10上の画像と同期するようタイミ
ングをとつて回転するレジスタローラ14により、挿入口
17を通つてドラム10上に送り込まれる。そして転写放電
器15により、ドラム10上のトナー画像がこの送り込まれ
た転写材Ｐに転写される。その後分離手段18によりドラ
ム10から転写材Ｐは剥離される。そしてこの転写材Ｐ
は、ガイド16を通つて定着ローラ５及び加圧ローラ６を
有する定着器Ｆに至り、転写材Ｐ上の転写トナー像を転
写材Ｐ上に定着する。そして、定着器Ｆを通過し画像を
定着された転写材Ｐは、本発明の一実施例を用いた排出
ローラ２・３によつて確実に排出口19からトレイ20上に
排出される。On the other hand, the transfer material P on the sheet stacking table 16 is fed by the feeding roller 13a.
・ By the register roller 14 which rotates in synchronization with the image on the photosensitive drum 10 and 13b, the insertion port
It is sent through the 17 onto the drum 10. Then, the transfer discharger 15 transfers the toner image on the drum 10 onto the fed transfer material P. After that, the transfer material P is separated from the drum 10 by the separating means 18. And this transfer material P
Passes through a guide 16 to a fixing device F having a fixing roller 5 and a pressure roller 6, and fixes the transfer toner image on the transfer material P on the transfer material P. Then, the transfer material P that has passed through the fixing device F and having the image fixed thereon is reliably discharged from the discharge port 19 onto the tray 20 by the discharge rollers 2 and 3 according to the embodiment of the present invention.

なお７は、定着ローラ５周面に転写材Ｐが巻き付くのを
防ぐ分離爪である。Reference numeral 7 is a separation claw that prevents the transfer material P from being wrapped around the peripheral surface of the fixing roller 5.

さて次に、本発明の一実施例を用いたシート搬送装置と
しての排出ローラ２・３について詳述する。Next, the discharge rollers 2 and 3 as a sheet conveying device using one embodiment of the present invention will be described in detail.

第３図は、定着部Ｆ付近の断面図、第４図は排出口19側
から見た排出ローラ２・３の正面図である。また第５図
（ａ）・（ｂ）は、転写材Ｐが通過するときの状態を示
した断面図である。FIG. 3 is a cross-sectional view near the fixing portion F, and FIG. 4 is a front view of the discharge rollers 2 and 3 as seen from the discharge port 19 side. 5 (a) and 5 (b) are cross-sectional views showing a state in which the transfer material P passes.

図において、第１のローラとしての下排出ローラ３は、
軸21によつて軸支されており、軸21の駆動により回転す
る。なお、この軸21は固定側板22にベアリング21aを介
して回転自在に取付けられており、ギヤ23・24によつて
本体側の駆動源（図示せず）からの駆動が伝達される。
ここで、このローラ３は、ゴム等の弾性材質で形成され
ている。そしてその周面一端には、等間隔でやはり弾性
材質で形成された突起４が設けられている。この突起４
は台形で、通常その上辺4aはローラ３の周面と平行にな
つており、その一端にはテーパ4bが設けられている（第
５図（ｂ））。またこのローラ３は、突起４の設けられ
た一端側が中空3aとなつており、即ち突起４の設けられ
ている部分のローラ肉厚3bが薄くなつている。そこで、
突起４部分の弾性は、突起４自身の弾性に合わせてロー
ラ３の肉厚3bの部分の弾性が加わり、さらに大きくなつ
ている。In the figure, the lower discharge roller 3 as the first roller is
It is rotatably supported by a shaft 21 and is rotated by driving the shaft 21. The shaft 21 is rotatably attached to the fixed side plate 22 via a bearing 21a, and the drive from a drive source (not shown) on the main body side is transmitted by the gears 23 and 24.
Here, the roller 3 is formed of an elastic material such as rubber. Then, at one end of the peripheral surface thereof, projections 4 which are also made of an elastic material are provided at equal intervals. This protrusion 4
Is trapezoidal, and its upper side 4a is generally parallel to the peripheral surface of the roller 3, and a taper 4b is provided at one end thereof (FIG. 5 (b)). The roller 3 has a hollow 3a at one end side where the protrusion 4 is provided, that is, the roller wall thickness 3b at the portion where the protrusion 4 is provided is thin. Therefore,
The elasticity of the projection 4 portion is further increased by the elasticity of the wall portion 3b of the roller 3 being added to the elasticity of the projection 4 itself.

また第２のローラとしての上排出ローラ２は、軸25にベ
アリング25aを介して回転自在に支持されている。そし
てこのローラ２は、プラスチツク等の剛体の樹脂で形成
されており、下排出ローラ３の略中央（軸線方向の）に
接触している。そこでこのオーラ２は、ローラ３に従動
して回転する。なおこの軸25は、固定側板26に取付けら
れている。The upper discharge roller 2 as a second roller is rotatably supported by the shaft 25 via a bearing 25a. The roller 2 is made of a rigid resin such as plastic, and is in contact with the approximate center of the lower discharge roller 3 (in the axial direction). Therefore, the aura 2 is rotated by being driven by the roller 3. The shaft 25 is attached to the fixed side plate 26.

なお第４図に示した実施例の数値を示すと、ローラ３の
幅（図示ａ）は約26mm、その直径は約18mmである。また
突起４の幅は約2mm、その高さは約1mmである。ここで左
側のローラ３のみが、ローラ周面の左端部（向かつて）
に突起４を設けているが、これは本実施例では左側に転
写材の搬送基準を設けたためであり、これによつて各サ
イズの転写材ともその左端側はこの突起4aと接触するこ
とになる。またその他のローラ３は右端部に突起４を設
け、しかも各ローラ３の突起４はそれぞれが各サイズの
転写紙の右端部近傍に当接するように適宜位置に配置さ
れている。なお、本実施例においてもこれに限定される
わけではないし、例えば中央基準あるいは右側基準等に
も本実施例は適用できること勿論である。The width of the roller 3 (a in the figure) is about 26 mm, and its diameter is about 18 mm. The width of the protrusion 4 is about 2 mm and its height is about 1 mm. Here, only the roller 3 on the left side is the left end portion (once facing) of the roller peripheral surface
The protrusion 4 is provided on the left side in the present embodiment because the transfer material conveyance reference is provided on the left side, so that the left end side of the transfer material of each size comes into contact with the protrusion 4a. Become. Further, the other rollers 3 are provided with a protrusion 4 at the right end, and the protrusions 4 of the respective rollers 3 are arranged at appropriate positions so as to contact the vicinity of the right end of the transfer paper of each size. Note that the present embodiment is not limited to this, and it goes without saying that the present embodiment can be applied to, for example, the center reference or the right reference.

次に、第５図（ａ）・（ｂ）を用いて、上記排出ローラ
対２・３を用いて、転写材の排出を行なう場合を説明す
る。Next, a case where the transfer material is discharged by using the discharge roller pair 2.3 will be described with reference to FIGS.

まず第５図（ａ）に、薄手の転写材Paを排出する場合を
示す。第５図（ａ）に示すように、薄手の転写材Paがロ
ーラ２・３間を通過する場合は、転写材Paが突起４にそ
つて押し曲げられた状態になる。その湾曲によって転写
材Paは搬送方向に湾曲しずらくなり、転写材Paの排出を
容易にさせる。そして突起４の側面が転写材Paの後端に
当接してローラ３と一体に回転し、ローラ３の回転によ
る力により転写材Paの後端を押し出して確実にローラ２
・３間から排出することができる。First, FIG. 5A shows a case where the thin transfer material P a is discharged. As shown in FIG. 5A, when the thin transfer material P a passes between the rollers 2 and 3, the transfer material P a is pressed and bent along with the protrusion 4. Due to the bending, the transfer material Pa becomes hard to be bent in the conveying direction, and the transfer material Pa is easily discharged. Then, the side surface of the protrusion 4 comes into contact with the rear end of the transfer material Pa and rotates integrally with the roller 3, and the rear end of the transfer material Pa is pushed out by the force of the rotation of the roller 3 to surely rotate the roller 2
・ It can be discharged from 3 intervals.

次に第５図（ｂ）に、厚手の転写材Pbを排出する場合を
説明する。第５図（ｂ）に示すように、厚手の転写材Pb
がローラ２・３間を通過する場合には、転写材Pbのこわ
さが大きいために、ローラ３の突起４周辺が弾性的に押
し曲げられて下降し、転写材Pbに突起の跡を付けること
がない。Next, the case where the thick transfer material Pb is discharged will be described with reference to FIG. As shown in FIG. 5B, the thick transfer material P b
There when passing between rollers 2, 3, because of the large stiffness of the transfer material P b, projections 4 around the roller 3 is lowered bent press elastically, applying a trace of the projections on the transfer material Pb Never.

なお、転写材Pbの後端がローラ２・３間を通過すると、
転写材Pbにより突起４が押しつけられる力は弱まり、肉
厚3bの弾性により突起４は元の位置にもどる。そして突
起４の側面が転写材Pbの後端に当接してローラ３と一体
に回転し、ローラ３の回転による力により転写材Pbの後
端を押し出して確実のローラ２・３間から排出すること
ができる。また、突起４の周方向の剛性は、ローラ３内
部を中空にしてもあまり小さくならないので、突起４に
より転写材の後端を確実に押し出して排出することがで
きる。When the rear end of the transfer material P b passes between the rollers 2 and 3,
The force with which the projection 4 is pressed by the transfer material P b is weakened, and the elasticity of the wall thickness 3 b causes the projection 4 to return to its original position. Then, the side surface of the protrusion 4 abuts on the rear end of the transfer material Pb and rotates integrally with the roller 3, and the rear end of the transfer material Pb is pushed out by the force of the rotation of the roller 3 and ejected from between the reliable rollers 2 and 3. be able to. Further, since the rigidity of the protrusion 4 in the circumferential direction does not become so small even if the inside of the roller 3 is hollow, the rear end of the transfer material can be reliably pushed out by the protrusion 4 and discharged.

他の実施例を第６図に示す。Another embodiment is shown in FIG.

本実施例はゴム製の下排出ローラ30の両端を中空33にし
て、ローラ30の周面両端に剛体プラスチック製の突起32
を等間隔に取り付けたものである。In this embodiment, both ends of the lower discharge roller 30 made of rubber are hollow 33, and the protrusions 32 made of rigid plastic are provided on both ends of the peripheral surface of the roller 30.
Are attached at equal intervals.

なお、突起は等間隔に設ける必要はない。The projections need not be provided at equal intervals.

また突起の形状は、台形に限定されるものではなく、第
６図に示すように直方体等であってもよく、適宜選択し
得るものである。Further, the shape of the protrusion is not limited to the trapezoid, and may be a rectangular parallelepiped or the like as shown in FIG. 6, and can be selected appropriately.

以上述べたように、本発明においては、突起の側面でシ
ート後端を押し出すのでシートを確実に搬送することが
できる。また、ローラ外周面に設けた突起は弾性的に変
位できるので固いシートに対して突起の跡を付けること
がない。As described above, in the present invention, the rear end of the sheet is pushed out by the side surface of the protrusion, so that the sheet can be reliably conveyed. Further, since the protrusion provided on the outer peripheral surface of the roller can be elastically displaced, the protrusion of the protrusion is not formed on a hard sheet.

さらに本発明によると、材料のみならず、突起と、前記
突起とローラの回転中心との間に形成された空間との間
の肉厚を変えることによっても突起の変位しやすさを変
えることができ、材料選択の自由度および設計の自由度
が増すシート搬送装置を提供することができる。この効
果は、突起とローラの回転中心との間に形成された空間
を側方に開放させたことによっていっそう高まる。Further, according to the present invention, not only the material but also the easiness of displacement of the protrusion can be changed by changing the wall thickness between the protrusion and the space formed between the protrusion and the rotation center of the roller. Therefore, it is possible to provide the sheet conveying device in which the degree of freedom in material selection and the degree of freedom in design are increased. This effect is further enhanced by laterally opening the space formed between the protrusion and the center of rotation of the roller.

さらに、本発明では、突起が変形しなくとも、突起が空
間に逃げ込むように変位することによってシートを通過
させるので、突起そのものを柔らかくしなくても、突起
とローラの回転中心との間に形成された空間との間の肉
厚を変えることによって突起はいくらでも変位しやすく
することができ、蹴り出し力の確保と、シートのスムー
ズな通過を両立させることができる。Further, in the present invention, even if the protrusion is not deformed, the protrusion passes through the sheet by displacing so as to escape into the space. Therefore, even if the protrusion itself is not softened, it is formed between the protrusion and the rotation center of the roller. The projection can be easily displaced by changing the wall thickness between the space and the created space, and it is possible to secure both the kicking force and the smooth passage of the seat.

また、空間は第２のローラと対向しない位置に設けられ
ているので、第１のローラの第２のローラと接触してい
る点は変形しずらく、シートを第１のローラと第２のロ
ーラとの間に確実に挟持することができる。Further, since the space is provided at a position that does not face the second roller, the point of the first roller that is in contact with the second roller is less likely to be deformed, and the sheet is placed between the first roller and the second roller. It can be reliably sandwiched between the rollers.

【図面の簡単な説明】[Brief description of drawings]

第１図は従来の排出装置の側面図、第２図は本発明の一
実施例を適用した複写機の断面図、第３図は定着部Ｆ付
近の断面図、第４図は排出ローラの正面図、第５図
（ａ）・（ｂ）は転写材を排出する状態を示した断面
図、第６図は他の実施例を示した断面図である。 図において、 ２……上排出ローラ、３……下排出ローラ 3b……肉厚、４……突起、4a……テーパ 27……下排出ローラ、28……突起 29……上排出ローラFIG. 1 is a side view of a conventional discharge device, FIG. 2 is a cross-sectional view of a copying machine to which an embodiment of the present invention is applied, FIG. 3 is a cross-sectional view near a fixing portion F, and FIG. 4 is a discharge roller. A front view, FIGS. 5A and 5B are cross-sectional views showing a state in which a transfer material is discharged, and FIG. 6 is a cross-sectional view showing another embodiment. In the figure, 2 ... upper discharge roller, 3 ... lower discharge roller 3b ... wall thickness, 4 ... protrusion, 4a ... taper 27 ... lower discharge roller, 28 ... protrusion 29 ... upper discharge roller

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】第１のローラと第２のローラとの間にシー
トを挟持して搬送するシート搬送装置において、 前記第１のローラの端部の外周面で、前記第２のローラ
と対向しない位置に複数の突起を周方向に間隔をおいて
設け、 前記突起が前記第１のローラの回転中心に近付く方向に
弾性的に変位できるように、前記第１のローラの回転中
心と前記突起との間で前記第２のローラに対向しない位
置に、側方に開放した空間を形成したことを特徴とする
シート搬送装置。1. A sheet conveying apparatus for sandwiching and conveying a sheet between a first roller and a second roller, wherein an outer peripheral surface of an end portion of the first roller opposes the second roller. A plurality of protrusions are provided at positions not to be arranged at intervals in the circumferential direction, and the rotation center of the first roller and the protrusion are arranged so that the protrusions can be elastically displaced in a direction approaching the rotation center of the first roller. And a space open to the side at a position not facing the second roller between the sheet conveyance device and the sheet conveyance device. 【請求項２】搬送されるシートの側端部近傍に前記突起
が当接するように、前記第１のローラが配置されている
ことを特徴とする特許請求の範囲第１項記載のシート搬
送装置。2. The sheet conveying apparatus according to claim 1, wherein the first roller is arranged so that the protrusion is brought into contact with a side end portion of a conveyed sheet. .
JP57115842A 1982-07-02 1982-07-02 Sheet transport device Expired - Lifetime JPH0776067B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57115842A JPH0776067B2 (en) 1982-07-02 1982-07-02 Sheet transport device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57115842A JPH0776067B2 (en) 1982-07-02 1982-07-02 Sheet transport device

Publications (2)

Publication Number Publication Date
JPS597660A JPS597660A (en) 1984-01-14
JPH0776067B2 true JPH0776067B2 (en) 1995-08-16

Family

ID=14672471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57115842A Expired - Lifetime JPH0776067B2 (en) 1982-07-02 1982-07-02 Sheet transport device

Country Status (1)

Country Link
JP (1) JPH0776067B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2530694Y2 (en) * 1987-04-23 1997-03-26 富士通株式会社 Stack structure of paper sheets
JP2006168955A (en) * 2004-12-17 2006-06-29 Oki Data Corp Medium delivery mechanism and image forming apparatus
EP1964801B1 (en) 2007-03-01 2014-02-26 Seiko Epson Corporation Media storage apparatus and media processing apparatus
JP2009040515A (en) * 2007-08-06 2009-02-26 Seiko Epson Corp Sheet feed roller and sheet-like medium storage device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4862788U (en) * 1971-11-15 1973-08-09

Also Published As

Publication number Publication date
JPS597660A (en) 1984-01-14

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