JPH0569978A - Document transport device - Google Patents
Document transport deviceInfo
- Publication number
- JPH0569978A JPH0569978A JP4602892A JP4602892A JPH0569978A JP H0569978 A JPH0569978 A JP H0569978A JP 4602892 A JP4602892 A JP 4602892A JP 4602892 A JP4602892 A JP 4602892A JP H0569978 A JPH0569978 A JP H0569978A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- endless belt
- belt
- flanges
- main body
- 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.)
- Granted
Links
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は原稿を複写機などの原稿
セット面上に自動的に給送する原稿搬送装置に係り、特
に搬送ベルトの張設構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document feeder for automatically feeding a document onto a document setting surface of a copying machine or the like, and more particularly to a tensioning structure for a conveyor belt.
【０００２】[0002]
【従来の技術】一般に、この種の装置は複写機本体の原
稿セット面上に無端ベルトを張設し、このベルトの摩擦
で原稿セット面上に原稿を搬送している。2. Description of the Related Art Generally, in this type of apparatus, an endless belt is stretched over the original setting surface of a copying machine main body, and the original is conveyed on the original setting surface by friction of the belt.
【０００３】ところが、このベルトは原稿セット面（通
常はガラス質材）より相当大きい摩擦係数および白色で
あることが要求されることから、布基体のネオプレンゴ
ム、ポリエステルプロピレンゴム等極めて軟質のゴム素
材を使用している。そのため、このベルトの張りが不均
一となり使用過程で軸方向に片寄る傾向が著しい。However, since this belt is required to have a friction coefficient and white that are considerably larger than the original setting surface (usually a glass material), an extremely soft rubber material such as cloth-based neoprene rubber or polyester propylene rubber. Are using. Therefore, the tension of the belt becomes non-uniform, and there is a marked tendency that the belt is biased in the axial direction during use.
【０００４】[0004]
【発明が解決しようとする課題】そこで従来にあって
は、例えばベルト内側中央部に突起条を形成し、プーリ
の凹陥溝に噛合してベルト走行時の片寄りを防止する方
法あるいはベルトにラック状の突起条を、またプーリに
は歯形を形成して互いに噛合する方法などが採られてい
るが、その製造が困難で高価となる欠点がある。Therefore, in the prior art, for example, a method of forming a protruding strip in the center of the inner side of the belt and engaging with a recessed groove of the pulley to prevent deviation when the belt is running, or a rack on the belt. Although a method of forming toothed shapes on the pulley and meshing with each other by forming a tooth shape on the pulley is adopted, there is a drawback that the manufacturing thereof is difficult and expensive.
【０００５】そこで、ベルトがテンションの大きい方に
寄ることを利用して、軸方向中央部を肥大させたプーリ
クラウン、ベルト両端縁を規制する鍔状フランジをプー
リに形成する等の方法が考えられる。Therefore, it is conceivable to form the pulley crown with an enlarged central portion in the axial direction and a flange-shaped flange for restricting both end edges of the belt on the pulley by utilizing the fact that the belt is closer to the one having a larger tension. ..
【０００６】ところが、プーリクラウンにあっては、プ
ーリの回転駆動力がベルトに伝達されずプーリとベルト
との間で滑ることがあり、原稿の搬送制御（例えば原稿
セット面の基準位置に原稿を停止させるストッパーの制
御）をプーリ駆動系の回転数で行う場合には、搬送中の
原稿の予想位置と実際の原稿の搬送位置とが狂って原稿
詰りやコピーミスを招くことがある。However, in the pulley crown, the rotational driving force of the pulley may not be transmitted to the belt and may slip between the pulley and the belt, so that the conveyance control of the original document (for example, the original document at the reference position on the original setting surface). When the control of the stopper to be stopped) is performed by the rotation speed of the pulley drive system, the predicted position of the original document being conveyed and the actual conveyance position of the original document may be misaligned, resulting in document jamming or copy error.
【０００７】また、プーリにフランジを形成した場合に
は、通常搬送ベルトが極めて軟質なゴム系材料（摩擦係
数を大きくする関係から半加硫の軟質ゴム等）で構成さ
れている為、このフランジを乗り越えて軸方向に片寄る
ことがある。さらに、このフランジを大きく大径にした
場合には、原稿セット面上に載置した際このフランジが
セット面に衝合して、ベルトがセット面に摺接しない欠
点がある。When a flange is formed on the pulley, the conveyor belt is usually made of an extremely soft rubber material (semi-vulcanized soft rubber or the like because of its large friction coefficient). There is a case that it gets over and crosses in the axial direction. Further, when the flange has a large diameter and a large diameter, there is a drawback that the flange abuts the setting surface when placed on the original setting surface and the belt does not slide on the setting surface.
【０００８】従来、このような欠点がある為、高価であ
るにもかかわらずベルト中央部に突起条などの特殊成形
を施し、この突起条をプーリに噛合してベルトの片寄り
を防止する等の方法が採られている。Conventionally, because of such drawbacks, although it is expensive, a special molding such as a protruding strip is formed in the central portion of the belt, and the protruding strip is engaged with the pulley to prevent the belt from being offset. The method of is adopted.
【０００９】本発明は、搬送ベルトが原稿セット面上を
摺動する際、このベルトが片寄ってプーリから離脱した
り、十分に動力が伝達されなかったりすることが無く、
安定して確実に原稿を搬送することが可能な原稿搬送装
置の提供をその目的とする。According to the present invention, when the conveyor belt slides on the document setting surface, the belt does not deviate from the pulley and the power is not sufficiently transmitted.
It is an object of the present invention to provide a document feeder which can stably and reliably convey a document.
【００１０】[0010]
【課題を解決するための手段】本発明は上記目的を達成
するために、無端ベルト５が張設された一対のプーリ
３，４の内、少なくとも駆動プーリ３を、両端にフラン
ジ３ｅ，３ｆを有する円柱状のプーリ本体３ｂと、フラ
ンジ３ｅ，３ｆの間のプーリ本体３ｂの周面に取り付け
られ、フランジ３ｅ，３ｆの間隔より狭く、かつ周面の
摩擦係数がプーリ本体３ｂの周面の摩擦係数より大きい
少なくとも１つの摩擦部材３ａとで構成した。In order to achieve the above object, the present invention has at least a drive pulley 3 among a pair of pulleys 3 and 4 on which an endless belt 5 is stretched, and flanges 3e and 3f at both ends. It is attached to the peripheral surface of the pulley main body 3b between the columnar pulley main body 3b and the flanges 3e and 3f, and is narrower than the distance between the flanges 3e and 3f, and the friction coefficient of the peripheral surface is the friction of the peripheral surface of the pulley main body 3b. And at least one friction member 3a having a larger coefficient.
【００１１】[0011]
【実施例】以下、本発明の実施例について図面を参照し
て説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１において、符号１は複写機本体などの
装置本体であって、その内部に通常の複写光学系が内蔵
されている。２は装置本体１の原稿セット面である。こ
の原稿セット面２は、通常の通り透明ガラス質材で構成
されている。In FIG. 1, reference numeral 1 is a main body of an apparatus such as a main body of a copying machine, in which a normal copying optical system is built. Reference numeral 2 denotes a document setting surface of the apparatus body 1. The original setting surface 2 is made of a transparent glass material as usual.
【００１３】前記原稿セット面２上には左右一対の駆動
プーリ（入口側プーリ）３と従動プーリ（出口側プー
リ）４とが機枠６に軸承され、その間に無端ベルト５が
架け渡してある。A pair of left and right drive pulleys (inlet side pulleys) 3 and driven pulleys (outlet side pulleys) 4 are supported on the machine frame 6 on the original setting surface 2, and an endless belt 5 is laid between them. ..
【００１４】通常この無端ベルト５は、布基体のネオプ
レンゴム、ポリエステルプロピレンゴム等軟質のゴム質
材が使用され、さらに半加硫ゴム等の極軟質の素材が用
いられている。Usually, the endless belt 5 is made of a soft rubber material such as a cloth base such as neoprene rubber and polyester propylene rubber, and is also made of an extremely soft material such as semi-vulcanized rubber.
【００１５】上記無端ベルト５の駆動プーリ３には、駆
動モータＭが連結してある。A drive motor M is connected to the drive pulley 3 of the endless belt 5.
【００１６】従って、前記駆動プーリ３に準備された原
稿は、原稿セット面２に沿って従動プーリ４側に給送さ
れ、さらに図示しない規制ストッパで停止セットされ、
複写終了後にはこの規制ストッパが退避して従動プーリ
４側から排紙スタッカ７に排出される。Therefore, the document prepared on the drive pulley 3 is fed to the driven pulley 4 side along the document setting surface 2 and further stopped and set by a regulation stopper (not shown).
After the copying is completed, the regulation stopper is retracted and is discharged from the driven pulley 4 side to the paper discharge stacker 7.
【００１７】かゝる装置にあっては、無端ベルト５のテ
ンションがその全面に亘って均一に作用し、さらに原稿
セット面２に均等に摺接することは不可能で、プーリ
３，４の軸方向に片寄る力が作用する。In such an apparatus, the tension of the endless belt 5 acts evenly over the entire surface thereof, and further, it is impossible to evenly slidably contact the original setting surface 2, and the shafts of the pulleys 3, 4 are A biasing force acts in the direction.
【００１８】これと共に、原稿セット面２上に全面を摺
接した無端ベルト５には大きな負荷が作用し、勢い大型
駆動モータＭを使用しなければならない。At the same time, a large load acts on the endless belt 5 which is entirely in sliding contact with the original setting surface 2, and a large-sized driving motor M must be used.
【００１９】そこで、プーリ３，４と無端ベルト５との
係合を片寄りが生ずることが無く、確実に駆動力を伝達
することが出来るプーリを求明し、図面に示したよう
に、一対のプーリ３，４の内、少なくとも駆動プーリ３
を、軸方向に摩擦係数の異なる複数の高摩擦部３ａと低
摩擦部３ｄとで構成した。Therefore, the pulleys which can surely transmit the driving force without deviation of the engagement between the pulleys 3 and 4 and the endless belt 5 are identified, and as shown in the drawings, a pair of pulleys is formed. Drive pulley 3 among the pulleys 3 and 4 of
Is composed of a plurality of high friction portions 3a and low friction portions 3d having different friction coefficients in the axial direction.
【００２０】図２に示した実施例は、図１における装置
において、駆動プーリ３のみを両端にフランジ３ｅ，３
ｆを有する円柱状のプーリ本体３ｂと、このプーリ本体
３ｂの周面に取り付けられ、周面の摩擦係数がプーリ本
体３ｂの周面の摩擦係数より大きい摩擦部材（高摩擦
部）３ａとで構成したものである。なお、摩擦部材３ａ
（フランジ３ｅ，３ｆの間隔より狭い）はプーリ本体３
ｂの軸方向両端部に摩擦係数の小さい低摩擦部３ｄを露
出させて中間部の周面に取り付けられている。The embodiment shown in FIG. 2 is similar to the device shown in FIG. 1 except that only the drive pulley 3 is provided at both ends with the flanges 3e and 3e.
A cylindrical pulley body 3b having f and a friction member (high friction portion) 3a attached to the peripheral surface of the pulley body 3b and having a friction coefficient of the peripheral surface larger than that of the peripheral surface of the pulley body 3b. It was done. The friction member 3a
(Narrower than the distance between the flanges 3e and 3f) is the pulley body 3
Low friction portions 3d having a small friction coefficient are exposed at both axial end portions of b and are attached to the peripheral surface of the intermediate portion.
【００２１】図示のものは、合成樹脂の中実軸材からな
る摩擦係数の小さいプーリ本体３ｂの中間部に凹陥溝３
ｃが形成してあり、この凹陥溝３ｃにプーリ本体３ｂの
周面（低摩擦部３ｄ）より摩擦係数の大きい摩擦部材３
ａが嵌合されている。従って、摩擦部材３ａは位置ずれ
を生じない。なお、摩擦部材３ａの周面はプーリ本体３
ｂの周面と同一面を形成しており、軸全体に亘って同一
の径である。In the figure, the concave groove 3 is formed in the middle of the pulley main body 3b made of a synthetic resin solid shaft material and having a small friction coefficient.
c is formed, and the friction member 3 having a larger friction coefficient than the peripheral surface (low friction portion 3d) of the pulley body 3b is formed in the concave groove 3c.
a is fitted. Therefore, the friction member 3a is not displaced. In addition, the peripheral surface of the friction member 3a is the pulley body 3
It forms the same surface as the peripheral surface of b and has the same diameter over the entire shaft.
【００２２】上記摩擦部材３ａは、クロロプレンゴムで
形成され、プーリ３の中央部において左右対称となるよ
うに位置している。The friction member 3a is made of chloroprene rubber and is positioned symmetrically at the center of the pulley 3.
【００２３】このクロロプレンゴムは、無端ベルト５の
芯体を布基体のテトロン（商品名）、表面をウレタンゴ
ムで構成している為、駆動プーリ３に面するテトロンよ
り摩擦係数の大きいゴム質材として選択されたものであ
る。つまり、摩擦部材３ａは無端ベルト５の駆動プーリ
３に面する素材の摩擦係数より大きい摩擦係数を有する
素材であれば、クロロプレンゴムに限らず種々の素材を
採用することができる。Since this chloroprene rubber has the core of the endless belt 5 made of cloth-based tetron (trade name) and the surface made of urethane rubber, it has a larger friction coefficient than that of the tetron facing the drive pulley 3. Was chosen as. That is, the friction member 3a is not limited to chloroprene rubber and various materials can be used as long as they have a coefficient of friction larger than that of the material facing the drive pulley 3 of the endless belt 5.
【００２４】従って、上述した構成からなる駆動プーリ
３と通常の従動プーリ４との間に張設した無端ベルト５
は、駆動プーリ３の回転駆動に伴って回転され、その弛
み側は原稿セット面２（通常は透明ガラス）上を摺接移
動することになる。Therefore, the endless belt 5 stretched between the drive pulley 3 having the above-mentioned structure and the ordinary driven pulley 4.
Is rotated as the drive pulley 3 is rotationally driven, and its slack side slides on the document setting surface 2 (usually transparent glass).
【００２５】この場合、無端ベルト５にはその幅方向
（プーリの軸方向）に常に均一の力が作用することは考
えられない。つまりプーリ３，４と無端ベルト５との不
均一な係合、無端ベルト５と原稿セット面２との不均一
な係合によって、無端ベルト５は左右いずれかの方向に
蛇行して片寄り始め、この片寄りが激しいとプーリ３，
４から離脱する。In this case, it is not considered that the endless belt 5 is always applied with a uniform force in its width direction (axial direction of the pulley). That is, due to the non-uniform engagement between the pulleys 3 and 4 and the endless belt 5 and the non-uniform engagement between the endless belt 5 and the document setting surface 2, the endless belt 5 meanders in either the left or right direction and starts to deviate. , If this deviation is severe, the pulley 3,
Leave from 4.
【００２６】このとき、無端ベルト５は駆動プーリ３の
摩擦部材３ａと摩擦力によって強く係合し、摩擦係数の
小さいプーリ本体３ｂとは弱く係合する。その結果、摩
擦部材３ａで片寄り方向の力が低減され、また両端部の
フランジ３ｅ，３ｆによる規制作用と相まって、無端ベ
ルト５が実質的に片寄りを生ずることがなくなる。At this time, the endless belt 5 is strongly engaged with the friction member 3a of the drive pulley 3 by a frictional force, and is weakly engaged with the pulley body 3b having a small friction coefficient. As a result, the force in the offset direction is reduced by the friction member 3a, and the endless belt 5 is substantially prevented from being offset in combination with the restricting action of the flanges 3e and 3f at both ends.
【００２７】図示した如く、駆動プーリ３の中間部に摩
擦係数の大きな摩擦部材３ａを配置したことで、通常の
プーリ中央部を肥大させたクラウン形状と同一の作用が
摩擦係数の差異によって得られ、また無端ベルト５と駆
動プーリ３との間の滑りも、摩擦部材３ａと無端ベルト
５とが確実に係合するために生じない。As shown in the figure, by disposing the friction member 3a having a large friction coefficient in the intermediate portion of the drive pulley 3, the same action as the usual crown shape in which the central portion of the pulley is enlarged is obtained by the difference in the friction coefficient. Further, slippage between the endless belt 5 and the drive pulley 3 does not occur because the friction member 3a and the endless belt 5 are reliably engaged with each other.
【００２８】尚、図２の構造において、摩擦部材３ａと
プーリ本体３ｂの低摩擦部３ｄ（摩擦部材３ａで覆われ
ていない部分）との軸方向における長さの比率は、両者
の摩擦係数の差、無端ベルト５の材質及びそのテンショ
ンに応じて実験的に求めればよいが、低摩擦部３ｄの長
さを駆動プーリ３の全軸長の５分の１乃至３分の１の範
囲で駆動プーリ３の左右両側（摩擦部材３ａの両側）に
それぞれ設けることが望ましい。In the structure of FIG. 2, the ratio of the axial length of the friction member 3a and the low friction portion 3d of the pulley body 3b (the portion not covered by the friction member 3a) is the friction coefficient of the two. The length of the low friction portion 3d is driven within a range of ⅕ to ⅓ of the total axial length of the drive pulley 3, although it may be experimentally determined according to the difference, the material of the endless belt 5 and the tension thereof. It is desirable to provide the pulley 3 on both left and right sides (both sides of the friction member 3a).
【００２９】次に、図３に示したものは、無端ベルト５
を架け渡した前後一対のプーリ３，４の内、前述の実施
例と同様、駆動プーリ３を摩擦係数の異なるプーリ本体
３ｂと摩擦部材３ａとで構成しているが、両者の間で径
を異ならせたものである。Next, as shown in FIG. 3, the endless belt 5
Of the pair of front and rear pulleys 3 and 4 that bridge the drive pulley 3, the drive pulley 3 is composed of a pulley main body 3b and a friction member 3a having different friction coefficients as in the above-described embodiment. It is different.
【００３０】即ち、この駆動プーリ３は、通常のプーリ
形状に形成したアルミ質材その他の摩擦係数の小さい周
面を有するプーリ本体３ｂと、両端部に低摩擦部３ｄを
露出させてその中間部に嵌合されたゴム質材その他の摩
擦係数の大きい摩擦部材３ａとで構成されており、摩擦
部材３ａの表面がプーリ本体３ｂの周面より多少突出し
た構造となっている。That is, the drive pulley 3 has a pulley main body 3b having a peripheral surface having a small friction coefficient such as an aluminum material formed in a normal pulley shape, and a low friction portion 3d is exposed at both end portions of the drive pulley 3. And a friction material 3a having a large friction coefficient, such as a rubber material, fitted to the surface of the pulley body 3b.
【００３１】従って、かゝる構造にあっては図２に示し
たものに比べ摩擦係数の大小による無端ベルト５への作
用と同時に、中間部が突出しているため摩擦部材３ａの
エッジ部分で無端ベルト５が湾曲し、無端ベルト５が軸
方向に移動し難くベルト片寄り防止の効果が得られ、さ
らに無端ベルト５と駆動プーリ３との間の滑りも防止で
きる。Therefore, in such a structure, as compared with the structure shown in FIG. 2, the end portion of the friction member 3a is endless because the intermediate portion is projected at the same time as it acts on the endless belt 5 depending on the magnitude of the friction coefficient. The belt 5 is curved, the endless belt 5 does not easily move in the axial direction, and the effect of preventing the belt deviation can be obtained. Further, the slip between the endless belt 5 and the drive pulley 3 can be prevented.
【００３２】図４に示したものは、幅狭の環状に形成し
た摩擦部材３ａをプーリ本体３ｂの中央部とその左右両
側にそれぞれ嵌合したものである。これらは左右対称と
なるように配置されている。In FIG. 4, a narrow annular friction member 3a is fitted to the central portion of the pulley body 3b and to the left and right sides thereof, respectively. These are arranged symmetrically.
【００３３】従って、かゝる構造にあっては、上述の実
施例と同様の効果が得られる他、装置設計時に無端ベル
ト５と駆動プーリ３との片当り、ベルトテンション、原
稿セット面２と無端ベルト５との摺接状態など雑多な条
件が影響して、無端ベルト５の片寄りや滑りの問題が生
じても、環状に形成した摩擦部材３ａの個数、間隔、
幅、摩擦係数の差などの幅広い設計条件から装置に応じ
た好適な条件を自由に選択でき、装置設計が非常に容易
となる。なお、摩擦部材３ａの個数、幅は図４に示した
ものに限定されない。Therefore, in such a structure, the same effects as those of the above-described embodiment can be obtained, and in addition, when the apparatus is designed, the endless belt 5 and the driving pulley 3 are placed in contact with each other, the belt tension, the document setting surface 2, and the like. Even if misalignment and slippage of the endless belt 5 occur due to miscellaneous conditions such as the sliding contact state with the endless belt 5, the number of the friction members 3a formed in a ring shape, the spacing,
From a wide range of design conditions such as width and difference in friction coefficient, suitable conditions can be freely selected according to the device, and the device design becomes very easy. The number and width of the friction members 3a are not limited to those shown in FIG.
【００３４】[0034]
【発明の効果】以上説明したように本発明は、無端ベル
ト５が張設された一対のプーリ３，４の内、少なくとも
駆動プーリ３を、両端にフランジ３ｅ，３ｆを有する円
柱状のプーリ本体３ｂと、フランジ３ｅ，３ｆの間のプ
ーリ本体３ｂの周面に取り付けられ、フランジ３ｅ，３
ｆの間隔より狭く、かつ周面の摩擦係数がプーリ本体３
ｂの周面の摩擦係数より大きい少なくとも１つの摩擦部
材３ａとで構成したので、均一の摩擦係数の素材で構成
した従来のプーリに比べ、プーリの軸方向の摩擦係数を
任意に設定することができ、ベルト５の片寄りと滑りと
の相反する条件を最適の状態に選定することができる。As described above, according to the present invention, of the pair of pulleys 3 and 4 on which the endless belt 5 is stretched, at least the drive pulley 3 and the cylindrical pulley body having the flanges 3e and 3f at both ends are provided. 3b and the flanges 3e, 3f are attached to the peripheral surface of the pulley body 3b, and the flanges 3e, 3f
It is narrower than the interval of f and the coefficient of friction of the peripheral surface is the pulley body 3
Since it is composed of at least one friction member 3a larger than the friction coefficient of the peripheral surface of b, it is possible to arbitrarily set the friction coefficient in the axial direction of the pulley as compared with the conventional pulley made of a material having a uniform friction coefficient. Therefore, the contradictory conditions of the deviation of the belt 5 and the slippage can be selected as the optimum condition.
【００３５】つまり、プーリを高摩擦部材で構成すれば
周面全体を均一に形成するのが難しく、ベルト幅左右の
不均衡によって片寄りが著しく、一方低摩擦部材で構成
すれば滑りが生ずるのに対し、本発明ではフランジ３
ｅ，３ｆの間隔より狭く、かつ周面の摩擦係数がプーリ
本体３ｂの周面の摩擦係数より大きい少なくとも１つの
摩擦部材３ａをフランジ３ｅ，３ｆの間のプーリ本体３
ｂの周面に取り付けているため、摩擦部材３の軸方向の
位置、長さ割合、プーリ本体３ｂとの摩擦係数の差など
を自由かつ最適の条件を設定することで、ベルト走行時
の片寄り及びプーリとの間での滑りを解消できる。That is, if the pulley is made of a high friction member, it is difficult to uniformly form the entire peripheral surface, and the deviation is remarkable due to the imbalance between the left and right of the belt width. On the other hand, if the pulley is made of a low friction member, slippage occurs. On the other hand, in the present invention, the flange 3
At least one friction member 3a which is narrower than the distance between the flanges 3e and 3f and has a peripheral surface friction coefficient larger than that of the peripheral surface of the pulley body 3b.
Since it is attached to the peripheral surface of b, the axial position of the friction member 3, the length ratio, the difference in the friction coefficient with the pulley main body 3b, etc. can be set freely and optimally, so that one side during belt running can be obtained. It is possible to eliminate slippage between the leaning side and the pulley.
【図１】本発明の好適な実施例の装置全体の説明図であ
る。FIG. 1 is an explanatory diagram of an entire apparatus according to a preferred embodiment of the present invention.
【図２】図１の要部の実施例を示す説明図である。FIG. 2 is an explanatory diagram showing an embodiment of the main part of FIG.
【図３】図１の要部の実施例を示す説明図である。FIG. 3 is an explanatory diagram showing an embodiment of the main part of FIG.
【図４】図１の要部の実施例を示す説明図である。FIG. 4 is an explanatory diagram showing an embodiment of a main part of FIG.
１ 装置本体 ２ 原稿セット面 ３ 駆動プーリ ３ａ 摩擦部材（高摩擦部） ３ｂ プーリ本体 ３ｃ 凹陥溝 ３ｄ 低摩擦部 ３ｅ フランジ ３ｆ フランジ ４ 従動プーリ ５ 無端ベルト 1 Device Main Body 2 Original Setting Surface 3 Drive Pulley 3a Friction Member (High Friction Part) 3b Pulley Main Body 3c Recessed Groove 3d Low Friction Part 3e Flange 3f Flange 4 Driven Pulley 5 Endless Belt
Claims (2)
に配設した一対の駆動プーリ（３）と従動プーリ（４）
との間に無端ベルト（５）を張設し、前記駆動プーリ
（３）を駆動して前記無端ベルト（５）を回転させ、前
記無端ベルト（５）の摩擦によって原稿を前記原稿セッ
ト面（２）に沿って搬送する原稿搬送装置において、 前記一対のプーリ（３），（４）の内、少なくとも駆動
プーリ（３）を、 両端にフランジ（３ｅ），（３ｆ）を有する円柱状のプ
ーリ本体（３ｂ）と、 前記フランジ（３ｅ），（３ｆ）の間の前記プーリ本体
（３ｂ）の周面に取り付けられ、前記フランジ（３
ｅ），（３ｆ）の間隔より狭く、かつ周面の摩擦係数が
前記プーリ本体（３ｂ）の周面の摩擦係数より大きい少
なくとも１つの摩擦部材（３ａ）とで構成したことを特
徴とする原稿搬送装置。1. A pair of drive pulley (3) and driven pulley (4) arranged on a document setting surface (2) of the apparatus body (1).
An endless belt (5) is stretched between the endless belt (5) and the drive pulley (3) to rotate the endless belt (5). 2) A document conveying apparatus for conveying along a pulley, which is a cylindrical pulley having at least a drive pulley (3) of the pair of pulleys (3), (4) and flanges (3e), (3f) at both ends. It is attached to the peripheral surface of the pulley main body (3b) between the main body (3b) and the flanges (3e) and (3f), and the flange (3
e) and (3f), which is narrower than the interval and has at least one friction member (3a) having a peripheral surface friction coefficient larger than the peripheral surface friction coefficient of the pulley body (3b). Transport device.
擦部材（３ａ）が嵌合する溝（３ｃ）を有することを特
徴とする請求項１記載の原稿搬送装置。2. The document feeder according to claim 1, wherein the pulley main body (3b) has a groove (3c) on the peripheral surface into which the friction member (3a) is fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4046028A JPH0653531B2 (en) | 1992-02-01 | 1992-02-01 | Document feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4046028A JPH0653531B2 (en) | 1992-02-01 | 1992-02-01 | Document feeder |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1526883A Division JPS6068350A (en) | 1983-01-31 | 1983-01-31 | Conveyor for copying original |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0569978A true JPH0569978A (en) | 1993-03-23 |
| JPH0653531B2 JPH0653531B2 (en) | 1994-07-20 |
Family
ID=12735593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4046028A Expired - Lifetime JPH0653531B2 (en) | 1992-02-01 | 1992-02-01 | Document feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0653531B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5370384A (en) * | 1994-02-08 | 1994-12-06 | Xerox Corporation | Sheet transport belt and support system for a sorter or mailbox |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52123981U (en) * | 1976-03-16 | 1977-09-20 | ||
| JPS5637941A (en) * | 1979-08-29 | 1981-04-11 | Xerox Corp | Sheet feeder |
-
1992
- 1992-02-01 JP JP4046028A patent/JPH0653531B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52123981U (en) * | 1976-03-16 | 1977-09-20 | ||
| JPS5637941A (en) * | 1979-08-29 | 1981-04-11 | Xerox Corp | Sheet feeder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5370384A (en) * | 1994-02-08 | 1994-12-06 | Xerox Corporation | Sheet transport belt and support system for a sorter or mailbox |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0653531B2 (en) | 1994-07-20 |
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