JPH0252829A - Electrostatic adsorption conveying device - Google Patents
Electrostatic adsorption conveying deviceInfo
- Publication number
- JPH0252829A JPH0252829A JP63202476A JP20247688A JPH0252829A JP H0252829 A JPH0252829 A JP H0252829A JP 63202476 A JP63202476 A JP 63202476A JP 20247688 A JP20247688 A JP 20247688A JP H0252829 A JPH0252829 A JP H0252829A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- paper
- endless belt
- electrodes
- belt
- 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
- 238000001179 sorption measurement Methods 0.000 title claims description 14
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、複写装置等において使用される自動原稿搬送
装置等の自動用紙搬送装置に関し、特に、用紙を静電吸
着力により吸着して搬送する静電吸着搬送装置に関する
。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an automatic paper conveyance device such as an automatic document conveyance device used in copying machines and the like, and in particular, to an automatic paper conveyance device such as an automatic document conveyance device used in a copying machine, etc. The present invention relates to an electrostatic adsorption conveyance device.
従来、自動用紙搬送装置を備えた複写装置においては、
プラテン部に用紙を搬送する手段として一般に無端状ベ
ルトが用いられている。また、このとき、盪送を確実と
するため、静電気による吸着作用を利用して用紙を無端
状ベルトに吸着させて搬送するものがある。Conventionally, in copying machines equipped with automatic paper transport devices,
An endless belt is generally used as a means for conveying paper to the platen section. At this time, in order to ensure reliable conveyance, some paper sheets are conveyed by being attracted to an endless belt using an adhesion effect due to static electricity.
これは、たとえば、複数の無端状ベルト上に電極を形成
し、この電極に通電して隣合う無端状ベルトの電極間に
電位差を持たせ、静電吸着力により用紙を無端状ベルト
に吸着させた状態で搬送するようになっている。For example, electrodes are formed on a plurality of endless belts, electricity is applied to these electrodes to create a potential difference between the electrodes of adjacent endless belts, and the paper is attracted to the endless belts using electrostatic attraction force. It is designed to be transported in the same condition.
各無端状ベルトに形成される電極の一例を第９図（ａ）
、（ｂ）に示す。無端状ベル）２０は、基材ベルト２０
ａの内側面に複数の電極２０ｂを形成した構造となって
おり、図示しない絶縁性ローラと給電ローラとの間に張
架されている。Figure 9(a) shows an example of the electrodes formed on each endless belt.
, shown in (b). Endless bell) 20 is a base belt 20
It has a structure in which a plurality of electrodes 20b are formed on the inner surface of a, and is stretched between an insulating roller and a power supply roller (not shown).
電極２０ｂは第９図ら）に示すように７字状になってお
り、無端状ベルト２０の移動方向（図面上、左右方向）
に沿って全周に渡って複数個配列され、各電極２０ｂは
互いに独立している。そして、給電ローラに接した接触
領域２１に含まれる電極２０ｂに連続する部分が給電領
域２２となり、用紙が入ってきてからある時間内は、こ
の部分で用紙が無端状ベルト２０に静電力により吸着さ
れる。上述の接触領域２１は、ある瞬間に給電ローラが
無端状ベルト２０に接触している幅であり、給電領域２
２は、このときに、電圧が印加される無端状ベルト２０
の長手方向の領域である。The electrode 20b has a 7-shape as shown in FIG.
A plurality of electrodes 20b are arranged along the entire circumference, and each electrode 20b is independent from each other. Then, the part continuous to the electrode 20b included in the contact area 21 in contact with the power supply roller becomes the power supply area 22, and within a certain time after the paper comes in, the paper is attracted to the endless belt 20 in this part by electrostatic force. be done. The above-mentioned contact area 21 is the width where the power supply roller is in contact with the endless belt 20 at a certain moment, and the power supply area 2
2 is an endless belt 20 to which a voltage is applied at this time.
is the longitudinal area of .
上記のような構成によって、用紙は無端状ベルト２０に
吸着されて複写装置のプラテン部に搬送され、プラテン
部の端部に設けられた用紙突当て機構（図示せず）に突
当てられて停止し、用紙の露光走査が行われる。そして
、用紙の露光走査の終了後、再度無端状ベルト２０に吸
着されてプラテン部から搬送、排出されるようになって
いる。With the above configuration, the paper is attracted to the endless belt 20 and conveyed to the platen section of the copying device, and is stopped when it hits a paper abutment mechanism (not shown) provided at the end of the platen section. Then, exposure scanning of the paper is performed. After the exposure scanning of the paper is completed, the paper is again attracted to the endless belt 20, conveyed and discharged from the platen section.
ところが、上記無端状ベルト２０は、最初から無端状で
はなく、帯状の基材ベル）２Ｏａ上に電極２０ｂを形成
したのち、基材ベル）２０ａの両端を溶着或いは接着す
ることによりループを形成し無端状としている。このた
め、このままでは基材ベル）２Ｏａ上の電極２０ｂは、
継目部分で電気的に不連続なものとなってしまう。However, the endless belt 20 is not endless from the beginning, but is formed by forming an electrode 20b on a band-shaped base material bell (20a) and then welding or gluing both ends of the base material bell (20a) to form a loop. It is endless. Therefore, as it is, the electrode 20b on the base material Bell)2Oa is
This results in electrical discontinuity at the joint.
この状態のまま使用すると、継目部分以外では、接触領
域２１に接している複数の電極２０ｂのベルト移動方向
の下流端部と上流端部との間の領域が給電領域２２とな
るが、継目部分では、電極２０ｂ の−部に通電されな
くなるため、給電領域２２が短くなってしまう。If used in this state, the area between the downstream end and upstream end in the belt movement direction of the plurality of electrodes 20b in contact with the contact area 21 will become the power feeding area 22, except for the joint part. In this case, the negative part of the electrode 20b is no longer energized, so the power supply region 22 becomes short.
この不都合を解決するためには、第１０図に示すように
、継目２３部分において対応する電極２０ｂ。In order to solve this inconvenience, as shown in FIG. 10, a corresponding electrode 20b at the seam 23 portion.
２０ｂが電気的に接続されるように導電性ペースト２４
を塗布するなどの、電極２０ｂの補修作業を行う必要が
ある。しかしながら、この補修作業は、手間がかかるも
のであり、このため無端状ベルト２０の製造コストが高
くなるという欠点があった。20b is electrically connected to the conductive paste 24.
It is necessary to perform repair work on the electrode 20b, such as applying. However, this repair work is time-consuming and has the drawback of increasing the manufacturing cost of the endless belt 20.
また、各電極２０ｂは独立しており、給電ローラ４とは
ベルト材料を介しているので、用紙の排出時に用紙等か
らの電荷の放電が遅く、無端状ベルト２０からの用紙の
剥離がスムーズに行われないという欠点があった。Furthermore, since each electrode 20b is independent and connected to the power supply roller 4 through the belt material, the discharge of charge from the paper etc. is slow when the paper is ejected, and the peeling of the paper from the endless belt 20 is smooth. The drawback was that it was not carried out.
本発明は、上記従来装置の欠点に鑑み、無端状ベルトの
長さ方向全域に給電することにより、継目部分における
電極の補修を不要にするとともに、電荷の放電を早める
ことを目的とする。In view of the above-mentioned drawbacks of the conventional device, the present invention aims to eliminate the need for repairing the electrodes at the joint portion and speed up the discharge of charges by supplying power to the entire length of the endless belt.
本発明の静電吸着搬送装置は、その目的を達成するため
に、半導電性材からなる用紙搬送用の複数の無端状ベル
トを並列に配置し、各無端状ベルトに円周方向に連続し
た電極を形成し、前記複数の無端状ベルトのうち隣合う
無端状ベルトの各電極に互いに異なった電圧を印加する
ことを特徴とする。In order to achieve the object, the electrostatic adsorption conveyance device of the present invention has a plurality of endless belts made of semi-conductive material for conveying sheets arranged in parallel, and each endless belt has continuous belts in the circumferential direction. The present invention is characterized in that electrodes are formed and different voltages are applied to each electrode of adjacent endless belts among the plurality of endless belts.
また、本発明の静電吸着搬送装置は、それぞれ複数のロ
ーラを配列した第１ローラ列及び第２ローラ列と、該両
ローラ列間に張架した半導電性材からなる用紙搬送用の
複数の無端状ベルトと、該無端状ベルトの前記ローラと
の接触面側に形成した円周方向に連続する列状電極と、
前記ローラ列の隣合うローラ間に電位差を与える電圧印
加手段とを備えたことを特徴とする。Further, the electrostatic adsorption conveyance device of the present invention includes a first roller row and a second roller row each having a plurality of rollers arranged therein, and a plurality of paper transporting rollers made of a semi-conductive material stretched between the two roller rows. an endless belt; and row-shaped electrodes continuous in the circumferential direction formed on the contact surface side of the endless belt with the roller;
It is characterized by comprising a voltage applying means for applying a potential difference between adjacent rollers of the roller row.
本発明の静電吸着搬送装置においては、無端状ベルトに
は、その円周方向全域にわたって連続した列状の電極が
形成されている。したがって、電極が不連続となってい
るベルトの継目部分が給電ローラの位置にきても、電極
のどこかが必ず給電のローラと接触し、無端状ベルトの
全領域が給電領域となる。また、電極により抵抗の小さ
な放電路が形成されるので、用紙排出時の用紙等の電荷
は電極を介して短時間で放電する。In the electrostatic adsorption conveyance device of the present invention, continuous rows of electrodes are formed on the endless belt over its entire circumferential direction. Therefore, even if the joint part of the belt where the electrodes are discontinuous comes to the position of the power supply roller, some part of the electrode will always come into contact with the power supply roller, and the entire area of the endless belt will become the power supply area. Further, since a discharge path with low resistance is formed by the electrodes, charges on the paper, etc. when the paper is ejected are discharged in a short time via the electrodes.
以下、図面を参照しながら、実施例により本発明の特徴
を具体的に説明する。Hereinafter, the features of the present invention will be specifically explained using examples with reference to the drawings.
第１図は、本実施例における静電吸着搬送装置の全体構
成図を示したもので、同図（ａ）はその概略断面図、同
図（ｂ）はその平面図である。なお、本実施例では、静
電吸着搬送装置は、自動用紙搬送装置内に組み込まれて
いる。FIG. 1 shows an overall configuration diagram of the electrostatic adsorption/conveying device in this embodiment, and FIG. 1(a) is a schematic sectional view thereof, and FIG. 1(b) is a plan view thereof. In this embodiment, the electrostatic adsorption conveyance device is incorporated into an automatic paper conveyance device.
図において、１は複数個の絶縁性ローラを示し、これら
の絶縁性ローラ１により第１ローラ列２を形成している
。また、この第１ローラ列２と所定間隔をもって複数の
給電ローラ４を配列して第２ローラ列３を形成している
。給電ローラ４は、たとえば、アルミニウム等の導電性
材料からなる金属ローラであって、導電性の支持枠、ス
リップリング等を介して電源５に接続されている。この
電源５からは後述するように隣合う給電ローラ４に異な
った電圧が印加される。なお、給電ローラ４は、絶縁性
ローラの外周面に導電層を形成し、これにスリップリン
グ等を接触させることにより給電殿構を形成する構成と
してもよい。In the figure, reference numeral 1 indicates a plurality of insulating rollers, and these insulating rollers 1 form a first roller row 2. Further, a plurality of power supply rollers 4 are arranged at a predetermined interval from the first roller row 2 to form a second roller row 3. The power supply roller 4 is, for example, a metal roller made of a conductive material such as aluminum, and is connected to a power source 5 via a conductive support frame, a slip ring, or the like. Different voltages are applied from this power supply 5 to adjacent power supply rollers 4 as described later. Note that the power supply roller 4 may have a structure in which a conductive layer is formed on the outer peripheral surface of an insulating roller, and a slip ring or the like is brought into contact with the conductive layer to form a power supply structure.
そして、この第１ローラ列２と第２ローラ列３との間に
矢印（第１図（ａ）参照）方向に移動する複数本の無端
状ベルト６を張架している。A plurality of endless belts 6 that move in the direction of the arrow (see FIG. 1(a)) are stretched between the first roller row 2 and the second roller row 3.
無端状ベルト６は、第２図に示すように、！外側の半導
電性材料からなる基材ベル）５ａと、内側の導電性材料
からなる電極６ｂの２層構造となっている。基材ベル）
６ａは、比抵抗が１０６〜１０′２Ω・ｃｍの半導電性
材料、たとえば、ポリプロピレン、ＰＶＣ（ポリ塩化ビ
ニル）、ＮＢＲにトロブタジェンゴム）、クロロブレン
、ニトリルゴム、アクリルニトリル、ウレタン、ポリエ
ステル、ポリオレフィン等をベースにして、カーボン等
の導電性粉末或いはイオン系導電性付与材を溶かしこん
だプラスチックもしくはゴムで形成されている。The endless belt 6 is, as shown in FIG. It has a two-layer structure including an outer base material 5a made of a semiconductive material and an inner electrode 6b made of a conductive material. base material bell)
6a is a semiconductive material with a specific resistance of 106 to 10'2 Ωcm, such as polypropylene, PVC (polyvinyl chloride), NBR (trobutadiene rubber), chloroprene, nitrile rubber, acrylonitrile, urethane, polyester, It is made of plastic or rubber based on polyolefin or the like, with conductive powder such as carbon or ionic conductivity imparting material dissolved therein.
なお、基材ベル）６ａを半導電性材料から形成するのは
、必要以上に用紙が無端状ベルト６に吸着されないよう
にするためである。すなわち、比抵抗が１０１２０・Ｃ
ｌ１１より高いベルト材料を使用すると、用紙、ベルト
共に帯電し、−旦用紙を吸着すると吸着し続けてしまい
、用紙の位置合わせ、排出等に不都合を生じる。そこで
、本実施例では、基材ベルト６ａの比抵抗が余り高（な
らないようにするとともに、電極６ｂに印加する電圧の
タイミング。Note that the reason why the base material bell 6a is formed from a semiconductive material is to prevent the paper from being attracted to the endless belt 6 more than necessary. In other words, the specific resistance is 10120・C
If a belt material higher than 111 is used, both the paper and the belt will be charged, and once the paper is attracted, it will continue to be attracted, causing problems in positioning, ejecting, etc. of the paper. Therefore, in this embodiment, the specific resistance of the base material belt 6a is made not to become too high, and the timing of the voltage applied to the electrode 6b is adjusted.
領域、大きさ等を制御することにより、最適な吸着条件
が得られるようにしている。By controlling the area, size, etc., optimal adsorption conditions can be obtained.
また、電極６ｂは、比抵抗が１０”Ω・ｃｍ以下の銀ペ
ースト、銅ペースト、ニッケルペースト等の’［性ペー
ストや導電性ポリマーで形成されている。Further, the electrode 6b is made of a conductive paste such as silver paste, copper paste, or nickel paste, or a conductive polymer having a specific resistance of 10''Ω·cm or less.
なお、銀ペーストの場合は比抵抗はＩＣｌ−’Ω・ｃｍ
程度まで小さくなる。In addition, in the case of silver paste, the specific resistance is ICl-'Ω・cm
becomes smaller to a certain degree.
そしてこの電極６ｂは、無端状ベルト６の裏面に円周方
向の全長にわたって連続的に形成されている。すなわち
、第３図（ａ）に示すように無端状ベルト６の全面に、
また、同図ら）に示すように無端状ベルト６０両側端を
除いた部分に形成している。The electrode 6b is continuously formed on the back surface of the endless belt 6 over the entire length in the circumferential direction. That is, as shown in FIG. 3(a), the entire surface of the endless belt 6 is
In addition, as shown in FIGS. 3A and 3B, the belt 60 is formed in a portion excluding both ends of the endless belt 60.
更に、同図（Ｃ）に示すように無端状ベルト６の長さ方
向に縞状に導電性材料を塗布し列状の電極６Ｉ］を形成
することもできる。Furthermore, as shown in FIG. 6C, a conductive material may be applied in stripes in the longitudinal direction of the endless belt 6 to form rows of electrodes 6I.
第３図（ａ）、（ｂ）の例の場合は、導電性材料を貼り
合わせることにより電極６ｂを形成することができる。In the case of the examples shown in FIGS. 3(a) and 3(b), the electrode 6b can be formed by bonding conductive materials together.
また、導電性インキによるスクリーン印刷を使用すれば
、第３図（ａ）、 （ｂ）、 （Ｃ）のいずれの場合で
も電極６ｂを形成することができる。Furthermore, if screen printing using conductive ink is used, the electrode 6b can be formed in any of the cases shown in FIGS. 3(a), 3(b), and 3(c).
いずれの構造にしても、電極６ｂは無端状ベルト６の内
周を一周するように継目部分を除いて連続的に形成され
る。したがって、この無端状ベルト６の電極６ｈが上記
給電ローラ４に接触して、第４図に示すように同無端状
ベルト６の全周にかけて給電領域（破線で示す）７が形
成される。なお、８は継目である。In either structure, the electrode 6b is formed continuously around the inner circumference of the endless belt 6 except for the joint portion. Therefore, the electrode 6h of the endless belt 6 comes into contact with the power supply roller 4, and as shown in FIG. 4, a power supply region (indicated by broken lines) 7 is formed around the entire circumference of the endless belt 6. Note that 8 is a seam.
ここで、無端状ベルト６の製法の一例を説明すると、先
ず、ポリプロピレンをベースにカーボンを溶かしこんだ
比抵抗１０９Ω・ｃｍで厚さ０．２５ｍｍの面状の半導
電性材を短冊状に切断して、基材ベルト６ａ部分を切り
出し、次に電極６ｂをたとえば銀ペーストのスクリーン
印刷により形成し、最後に基材ベルト６ａの両端を融着
する。これにより、第５図に示すように基材ベル）６ａ
は無端状になるが、電極６ｂの両端部は継目８の部分で
不連続のまま残る。Here, to explain an example of the manufacturing method of the endless belt 6, first, a planar semiconductive material with a specific resistance of 109 Ω·cm, made of polypropylene as a base and dissolved in carbon, with a thickness of 0.25 mm is cut into strips. Then, the base material belt 6a portion is cut out, and then the electrodes 6b are formed by screen printing, for example, with silver paste, and finally both ends of the base material belt 6a are fused. As a result, as shown in FIG.
becomes endless, but both ends of the electrode 6b remain discontinuous at the seam 8.
しかし、本実施例の場合は、電極６ｂをベルト方向に連
続して形成しており、無端状ベルト６は常に給電ローラ
４の半周に接触しているので、無端状ベルト６の継目８
部分が給電ローラ４部分を通遇するときも、電極６ｂの
どこかに給電ローラ４が必ず接触してしている。したが
って、継目８の位置に関わりなく無端状ベルト６の全周
にかけて給電領域７が形成される。このため、従来のよ
うに継目８の部分において、電極６ｂの不連続を補修す
る必要はなくなる。However, in the case of this embodiment, the electrodes 6b are formed continuously in the belt direction, and the endless belt 6 is always in contact with half the circumference of the power supply roller 4, so the seam 8 of the endless belt 6
Even when the portion passes through the feed roller 4 portion, the feed roller 4 is always in contact with somewhere on the electrode 6b. Therefore, the power feeding region 7 is formed around the entire circumference of the endless belt 6 regardless of the position of the seam 8. Therefore, there is no need to repair the discontinuity of the electrode 6b at the joint 8 as in the conventional case.
次に、前記給電ローラ４に電圧を印加するための電圧印
加回路について第６図を参照して説明する。Next, a voltage application circuit for applying voltage to the power supply roller 4 will be explained with reference to FIG. 6.
各給電ローラ４は、各無端状ベルト６に対応して設けら
れており、たとえば、奇数番目がアース９に接続され、
偶数番目には電源１０からスイッチ１１を介してプラス
の電圧が印加されている。なお、給電ローラ４を接地す
る代わりにマイナス電位を印加するようにしてもよい。Each power feeding roller 4 is provided corresponding to each endless belt 6, and for example, an odd numbered roller is connected to the ground 9,
A positive voltage is applied from the power supply 10 via the switch 11 to the even numbered ones. Note that instead of grounding the power supply roller 4, a negative potential may be applied to it.
そして、スイッチ１１をオンとすることにより、電源１
０からは給電ローラ４を介して、１本おきに無端状ベル
ト６に電圧が印加される。これにより、無端状ベルト６
と用紙ａとの間に静電吸着力が生じ、用紙ａが無端状ベ
ルト６に吸着される。この状態で無端状ベルト６が回転
すると、用紙ａは無端状ベルト６に吸着された状態のま
ま搬送されるので、確実な搬送が可能となる。Then, by turning on the switch 11, the power supply 1
From 0, a voltage is applied to every other endless belt 6 via the power supply roller 4. As a result, the endless belt 6
An electrostatic adsorption force is generated between the paper a and the paper a, and the paper a is attracted to the endless belt 6. When the endless belt 6 rotates in this state, the paper a is conveyed while being attracted to the endless belt 6, so that reliable conveyance is possible.
また、用紙排出時には、スイッチ１１をオフとすること
により電圧の印加を停止して静電吸着を解除し、用紙ａ
を無端状ベルト６から離脱させる。In addition, when paper is ejected, by turning off the switch 11, the application of voltage is stopped and electrostatic adsorption is released, and the paper a
is separated from the endless belt 6.
次に、第１０図に示した従来例の７字状の電極２０ｂを
有する無端状ベルト２０と本実施例の無端状ベルト６の
用紙の搬送性能を比較した実験結果について述べる。Next, the results of an experiment comparing the paper conveyance performance of the conventional endless belt 20 having seven-shaped electrodes 20b shown in FIG. 10 and the endless belt 6 of this embodiment will be described.
基材ベル） ［ｉａ、 ２０ａ の材料は、同一のもの
を使用した。そして、気温２８℃、湿度８５％から気温
１０℃、湿度３０％までの環境下で１３．０００枚の用
紙搬送テストを行った結果、搬送性に関しては有意差は
なく、本実施例のような列状の電極６ｂでも用紙の搬送
に支障がないとか判明した。The same material was used for the base material bell) [ia, 20a. As a result of conducting a paper transport test of 13,000 sheets under environments ranging from a temperature of 28°C and humidity of 85% to a temperature of 10°C and humidity of 30%, there was no significant difference in transportability, and there was no significant difference in paper transport performance. It has been found that even with the electrodes 6b arranged in a row, there is no problem in transporting the paper.
また、電圧のオフ後のベルトや用紙等の系からの電荷放
電についての実験結果は次の通りであった。第７図は、
用紙の離脱実験要領の説明図である。Furthermore, the experimental results regarding charge discharge from systems such as belts and paper after the voltage was turned off were as follows. Figure 7 shows
FIG. 2 is an explanatory diagram of the procedure for a paper detachment experiment.
第９図に示す従来例の７字状の電極２０ｂの給電領域２
２に用紙ａが半分程かかる位置（第７図参照）で吸着さ
せ、その後、電圧を切って用紙ａが落下するまでの時間
を、上述の本実施例における落下時間と比較した。Power feeding area 2 of the conventional 7-shaped electrode 20b shown in FIG.
2 at a position where the paper a was about halfway covered (see FIG. 7), and then the voltage was turned off and the time taken for the paper a to fall was compared with the falling time in this example described above.
気温２２℃、湿度５５％の環境下で複写機用の普通紙を
使用したときの用紙ａの落下時間は、従来例の場合は８
秒であったのに対し、本実施例による場合は５秒であっ
た。すなわち、本実施例による無端状ベルト６の方がベ
ルトからの放電が速く行われることが判る。これは、第
８図に矢印Ｒで示すように無端状ベルト６全周にわたっ
て形成された電極６ｂを通して電荷が素早くリークする
ためである。従来例の７字状の電極２０ｂの場合は、給
電ローラ４に接触していない電極に関しては互いに独立
しているので、電荷は基材ベル） ２０ａ 部分を通ら
ざる得ない。しかし、基材ベルト２０ａ部分は比較的抵
抗値の高い半導電性材で形成されているのでリークは遅
くなる。When using plain paper for a copier in an environment with a temperature of 22°C and a humidity of 55%, the falling time of paper a is 8 in the case of the conventional example.
In contrast, in the case of this embodiment, the time was 5 seconds. In other words, it can be seen that the endless belt 6 according to this embodiment allows discharge from the belt to occur faster. This is because the charge quickly leaks through the electrode 6b formed around the entire circumference of the endless belt 6, as shown by arrow R in FIG. In the case of the conventional seven-shaped electrode 20b, the electrodes not in contact with the power supply roller 4 are independent from each other, so that the electric charge must pass through the base material bell) 20a. However, since the base belt 20a portion is formed of a semiconductive material with a relatively high resistance value, leakage is delayed.
なお、上述の実施例においては、自動用紙搬送装置を例
に挙げて説明したが、本発明はこれに限定されるもので
はなく、たとえば、合成樹脂等からなるフィルム等の搬
送装置にも適用でき、静電吸着が可能な薄いシート状体
を搬送するものであれば、どのような装置にも適用でき
る。Although the above-mentioned embodiment has been explained using an automatic paper conveyance device as an example, the present invention is not limited thereto, and can also be applied to, for example, a conveyance device for films made of synthetic resin or the like. The present invention can be applied to any device that conveys a thin sheet material that can be electrostatically attracted.
以上に説明したように、本発明の静電吸着搬送装置によ
れば、ベルト全周にわたって列状電極を形成して給電す
るようにしたので、継目によって電極が不連続となって
いても、常に全域給電は確保される。したがって、従来
のような継目部分における電極の補修作業が不要となり
コストが低減できる。更に、電荷は、抵抗が小さな電極
を介してリークするので電荷の放電が速（、電圧をオフ
状態にして用紙を離すときに比較的早く吸着状態から解
放することができ、用紙の排出が容易となる。As explained above, according to the electrostatic adsorption conveyance device of the present invention, power is supplied by forming rows of electrodes all around the belt, so even if the electrodes are discontinuous due to seams, Power supply throughout the area will be ensured. Therefore, there is no need to repair the electrodes at the joints as in the past, and costs can be reduced. Furthermore, since the charge leaks through the electrode with low resistance, the charge discharges quickly (when the voltage is turned off and the paper is released, it can be released from the attracted state relatively quickly, making it easy to eject the paper. becomes.
第１図（ａ）、（ｂ）は本発明実施例の静電吸着装置の
概略断面図及び同平面図、第２図は本実施例の無鎮状ベ
ルトの要部断面図、第３図は電極の各パターン例を示す
背面図、第４図は給電領域の説明図、第５図は無端状ベ
ルトの継目部分の状態を示す背面図、第６図は給電ロー
ラへの電圧印加状態を示す説明図、第７図は用紙の離脱
実験要領の説明図、第８図は電圧をオフにしたときの電
荷の放電路を説明する図、第９図（ａ）、ら）は従来例
のＶ字状電極を使用した無端状ベルトの断面図及び背面
図、第１Ｏ図は継目部分における電極の補修の状態の説
明図である。
１：絶縁性ローラ
３：第２ローラ列
５．１０：電源
６ａ、２０ａ ＋基材ベルト
７．２２：給電領域
９：アース
２１：接触領域
ａ：用紙1(a) and 1(b) are a schematic sectional view and a plan view of the electrostatic adsorption device according to the embodiment of the present invention, FIG. 4 is a rear view showing examples of each pattern of electrodes, FIG. 4 is an explanatory diagram of the power supply area, FIG. 5 is a rear view showing the state of the joint part of the endless belt, and FIG. 6 is the state of voltage application to the power supply roller. Figure 7 is an explanatory diagram of the procedure for the paper detachment experiment, Figure 8 is a diagram explaining the discharge path of the charge when the voltage is turned off, and Figure 9 (a), et al.) are the diagrams of the conventional example. A cross-sectional view and a back view of an endless belt using V-shaped electrodes, and FIG. 1O are explanatory views of the state of electrode repair at the joint portion. 1: Insulating roller 3: Second roller row 5.10: Power supply 6a, 20a + base belt 7.22: Power supply area 9: Earth 21: Contact area a: Paper
Claims (1)
トを並列に配置し、各無端状ベルトに円周方向に連続し
た電極を形成し、前記複数の無端状ベルトのうち隣合う
無端状ベルトの各電極に互いに異なった電圧を印加する
ことを特徴とする静電吸着搬送装置。 ２、それぞれ複数のローラを配列した第１ローラ列及び
第２ローラ列と、該両ローラ列間に張架した半導電性材
からなる用紙搬送用の複数の無端状ベルトと、該無端状
ベルトの前記ローラとの接触面側に形成した円周方向に
連続する列状電極と、前記ローラ列の隣合うローラ間に
電位差を与える電圧印加手段とを備えたことを特徴とす
る静電吸着搬送装置。[Claims] 1. A plurality of endless belts made of a semiconductive material for paper conveyance are arranged in parallel, and electrodes continuous in the circumferential direction are formed on each endless belt, and the plurality of endless belts are arranged in parallel. An electrostatic adsorption conveyance device characterized in that different voltages are applied to each electrode of adjacent endless belts among the belts. 2. A first roller row and a second roller row each having a plurality of rollers arranged therein, a plurality of endless belts for conveying paper made of a semiconductive material stretched between the two roller rows, and the endless belts. Electrostatic adsorption conveyance characterized by comprising: row-shaped electrodes continuous in the circumferential direction formed on the contact surface side with the rollers; and voltage applying means for applying a potential difference between adjacent rollers of the roller row. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63202476A JPH0252829A (en) | 1988-08-13 | 1988-08-13 | Electrostatic adsorption conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63202476A JPH0252829A (en) | 1988-08-13 | 1988-08-13 | Electrostatic adsorption conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0252829A true JPH0252829A (en) | 1990-02-22 |
Family
ID=16458148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63202476A Pending JPH0252829A (en) | 1988-08-13 | 1988-08-13 | Electrostatic adsorption conveying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0252829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7770714B2 (en) | 2007-08-27 | 2010-08-10 | Canon Anelva Corporation | Transfer apparatus |
| US8282089B2 (en) | 2006-03-29 | 2012-10-09 | Applied Materials Gmbh & Co. Kg | Vacuum transport device with movable guide rail |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54140372A (en) * | 1978-04-21 | 1979-10-31 | Taihei Chem | Electrostatic holding conveyor belt and electrostatic holding shifter that use said belt |
| JPS61124455A (en) * | 1984-11-16 | 1986-06-12 | Ekuseru Kogyo Kk | Electrostatically adsorbing rubber belt |
| JPS622542B2 (en) * | 1981-03-19 | 1987-01-20 | Toray Industries |
-
1988
- 1988-08-13 JP JP63202476A patent/JPH0252829A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54140372A (en) * | 1978-04-21 | 1979-10-31 | Taihei Chem | Electrostatic holding conveyor belt and electrostatic holding shifter that use said belt |
| JPS622542B2 (en) * | 1981-03-19 | 1987-01-20 | Toray Industries | |
| JPS61124455A (en) * | 1984-11-16 | 1986-06-12 | Ekuseru Kogyo Kk | Electrostatically adsorbing rubber belt |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8282089B2 (en) | 2006-03-29 | 2012-10-09 | Applied Materials Gmbh & Co. Kg | Vacuum transport device with movable guide rail |
| US7770714B2 (en) | 2007-08-27 | 2010-08-10 | Canon Anelva Corporation | Transfer apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107664940B (en) | Image forming apparatus with a toner supply device | |
| US5268725A (en) | Sheet member carrier device with grounding means | |
| US3630591A (en) | Electrophotographic receiver sheet pickup method and apparatus | |
| JPH0252829A (en) | Electrostatic adsorption conveying device | |
| JP2004091070A (en) | Recording device | |
| JP2737313B2 (en) | Electrostatic suction transfer device | |
| JP3889503B2 (en) | Printing device | |
| JPH03152035A (en) | Endless belt for electrostatic attraction conveyance | |
| JP2792096B2 (en) | Method of manufacturing endless resin film belt for electrostatic transfer device | |
| JP2737315B2 (en) | Endless belt for electrostatic suction conveyance | |
| JPH07125865A (en) | Electrostatic attraction belt conveyor | |
| JP2841461B2 (en) | Electrostatic transfer device and method for manufacturing resin film belt used in the device | |
| JPH0245235Y2 (en) | ||
| JPH03227845A (en) | Sheet conveying device and belt member used therefor | |
| JP3057842B2 (en) | Electrostatic transfer device | |
| JP2737314B2 (en) | Electrostatic suction transfer device | |
| JPH0620950B2 (en) | Conveyor equipment | |
| JPS6256058B2 (en) | ||
| JPH06110350A (en) | Roller for fixing and fixing device | |
| JPH06171755A (en) | Electrostatic attraction belt conveyor | |
| JP2754622B2 (en) | Electrostatic transfer device | |
| JP2990316B2 (en) | Electrostatic transfer device | |
| JPH0758408B2 (en) | Transfer roller mechanism | |
| JPH03181979A (en) | Transfer belt device | |
| JPH02156277A (en) | Electrostatic conveying and transferring device |