JP3253386B2 - Friction charging structure and manufacturing method thereof - Google Patents
Friction charging structure and manufacturing method thereofInfo
- Publication number
- JP3253386B2 JP3253386B2 JP34442992A JP34442992A JP3253386B2 JP 3253386 B2 JP3253386 B2 JP 3253386B2 JP 34442992 A JP34442992 A JP 34442992A JP 34442992 A JP34442992 A JP 34442992A JP 3253386 B2 JP3253386 B2 JP 3253386B2
- Authority
- JP
- Japan
- Prior art keywords
- charging member
- charging
- charged
- charged body
- paper
- 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 - Fee Related
Links
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は複写機等の画像形成装置
に好適に適用される、摩擦帯電による静電気力を利用し
て用紙を吸着する摩擦帯電構造体およびその製造方法に
関する。The present invention relates to a Ru is suitably applied to an image forming apparatus such as a copying machine, by utilizing an electrostatic force about the manufacturing method for a triboelectric charge structure and its adsorbing sheet by frictional electrification.
【０００２】[0002]
【従来の技術】複写機等の給紙装置においては用紙載置
台または給紙カセット上に搭載された用紙束の中、最上
紙のみを取り出して下流に搬送する機構として、用紙を
下流方向に搬送する給紙ローラーと、給紙ローラーに圧
接して逆回転する逆転ローラーを用いる方式が知られて
いる。この方式は大きな搬送力と確実な用紙分離性が得
られるので多用されているが、圧接する上記２つのロー
ラーと用紙間の摩擦力を利用しているので、それらを駆
動するモーターは大きな回転駆動力が必要であり、ま
た、逆転ローラーにはこれに掛かる負荷を一定の大きさ
に制限するトルクリミッターが必要になる。そこで、か
かるトルク制限機構や大きな回転駆動力を必要としない
静電吸引力を利用した給紙装置が、例えば、特開昭５８
−１０００４２号公報や特開平３−１５２０３４号公報
に開示されている。即ち、前者には積載シートを給送す
る帯電性ベルトを帯電する帯電手段と、帯電性ベルトを
除電する除電手段を有したシート給送装置が、また、後
者には網目内に半導電性高分子物質が存在するように、
半導電性高分子物質中にメッシュ材が埋め込まれた基材
ベルトの表面に第１および第２の電極が形成された静電
吸着搬送用無端状ベルトを有した紙送り用装置が開示さ
れている。2. Description of the Related Art In a paper feeder such as a copying machine, a mechanism for taking out only the uppermost paper from a paper bundle mounted on a paper mounting table or a paper feed cassette and transporting the paper downstream is used to transport paper downstream. There is known a system that uses a paper feed roller that rotates and a reverse rotation roller that presses against the paper feed roller and rotates in the reverse direction. This method is frequently used because a large transport force and reliable paper separation can be obtained. However, since the frictional force between the two rollers that press against and the paper is used, the motor that drives them is a large rotary drive. A force is required, and the reverse roller requires a torque limiter to limit the load applied thereto to a certain level. Therefore, a paper feeder utilizing such a torque limiting mechanism and an electrostatic attraction force that does not require a large rotational driving force is disclosed in, for example,
Japanese Patent Application Laid-Open No. -100042 and Japanese Unexamined Patent Publication No. Hei 3-152034. That is, the former includes a charging unit that charges a charging belt that feeds a stacked sheet, and a sheet feeding device that has a discharging unit that discharges the charging belt. Like a molecular substance,
Disclosed is a paper feeding apparatus having an endless belt for electrostatic attraction conveyance in which first and second electrodes are formed on a surface of a base belt in which a mesh material is embedded in a semiconductive polymer material. I have.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来技術にあっては、前者では帯電手段により帯電された
帯電性ベルトにシートを吸着させて搬送するので、吸着
されたシートが帯電し、搬送手段や案内板に吸着して紙
詰まりを引き起こしたり、帯電された感光体上に形成さ
れた潜像に悪影響を及ぼすことがあった。また、後者で
は電極に高電圧を供給する電源や漏電すること無く電極
に高電圧を導く導電手段、あるいは、静電吸着搬送用無
端状ベルトに電極を形成する工程が必要になるので、装
置価格が高価になるばかりでなく、安定な搬送力を維持
することが難しかった。本発明は従来技術におけるかか
る問題点を解消しようとするものであり、紙詰まりを引
き起こしたり、感光体上に形成された潜像に悪影響を及
ぼすことが無く、安価で安定な搬送力を維持することが
できる摩擦帯電構造体およびその製造方法を提供するこ
とを目的とする。However, in the prior art described above, in the former case, the sheet is adsorbed and conveyed by the charging belt charged by the charging means. Or a guide plate, which may cause paper jams or adversely affect a latent image formed on a charged photoconductor. In addition, the latter requires a power supply for supplying a high voltage to the electrodes, conductive means for guiding the high voltage to the electrodes without leakage, or a process of forming the electrodes on the endless belt for electrostatic attraction conveyance. However, it is not only expensive but also it is difficult to maintain a stable conveying force. The present invention is intended to solve such a problem in the related art, and does not cause a paper jam and does not adversely affect a latent image formed on a photoreceptor, and maintains an inexpensive and stable conveyance force. and to provide a manufacturing method for a triboelectric charge structure and its capable.
【０００４】[0004]
【課題を解決するための手段】上記課題は、摩擦により
表面に静電気を誘起される摩擦帯電構造体において、前
記表面には第１の帯電体中に第２の帯電体が点状、線状
または細幅の帯状を成して分布しており、前記第１の帯
電体と前記第２の帯電体は帯電列上で離れた位置に位置
付けられるものである第１の手段により解決される。 上
記課題は、第１の手段において、前記第２の帯電体は前
記第１の帯電体の表面に形成された微細な凹穴または細
幅の溝内に埋め込まれたものである第２の手段により解
決される。 上記課題は、第１の手段において、前記第２
の帯電体は前記第１の帯電体の内部に分散された微粒
子、繊維または微小な柱状体である第３の手段により解
決される。 上記課題は、第１の帯電体の表面に形成され
た微細な凹穴または細幅の溝を埋め込むように、前記第
１の帯電体の表面を覆う第２の帯電体の薄層を形成する
工程と、前記第２の帯電体の表層と前記第１の帯電体の
一部を切削、研削または研摩し、前記第２の帯電体と共
に前記第１の帯電体を表面に露出させる工程を含む第４
の手段により解決される。 上記課題は、液状の第１の帯
電体の内部に微粒子、繊維または微小な柱状体の第２の
帯電体を分散させた分散液を表面に塗装して硬化させる
工程と、その表面を切削、研削または研摩し、前記第１
の帯電体と共に前記第２の帯電体を表面に露出させる工
程を含む第５の手段により解決される。 The above object is achieved by friction.
In a triboelectric structure where static electricity is induced on the surface,
On the surface, the second charged body is dotted or linear in the first charged body.
Alternatively, the first band is distributed in a narrow band shape.
The electric body and the second charged body are located at separate positions on the charged line.
It is solved by a first means to be attached. Up
The problem is that in the first means, the second charged body is provided
The fine concave holes or fine holes formed on the surface of the first charging member.
Solution by a second means embedded in the groove of width.
Is decided. The above object is achieved by the first means, wherein:
Are charged fine particles dispersed inside the first charged body.
Solution by a third means that is a fiber, a fiber or a fine columnar body.
Is decided. The above object is attained on the surface of the first charged body.
To fill the small concave hole or narrow groove.
Forming a thin layer of the second charged body covering the surface of the first charged body
And a step of forming a surface layer of the second charged body and the first charged body.
A part is cut, ground or polished, and shared with the second charged body.
The step of exposing the first charged body to the surface.
It is solved by the means of. The above-mentioned problem is caused by a first liquid band.
The second of fine particles, fibers or minute pillars inside the electric body
Apply and cure the dispersion of the charged body on the surface
Cutting, grinding or polishing the surface thereof,
Exposing the second charged body to the surface together with the charged body of
This is solved by a fifth means including a step.
【０００５】[0005]
【作用】上記手段にあっては、第１の帯電体と第２の帯
電体の分布に対応して、摩擦帯電構造体の表面には摩擦
により正負の静電気が誘起され、この正負の静電気間に
形成されるループ状の電気力線に沿って紙面に誘起され
る静電気との吸引力により、積載された用紙を吸着する
ことができる。 [Action] In the above means, in response to the distribution of the first charging member and a second charging member, the surface of the frictional charging structures are positive and negative static electricity is induced by the rubbing friction, static electricity of the positive and negative Between
Induced on the paper along the loop of electric force lines formed
Attracts loaded paper by the suction force of static electricity
be able to.
【０００６】[0006]
【実施例】以下、本発明の実施例を図面を参照して詳細
に説明する。図２は本発明の第１の実施例に係る給紙装
置の給紙状態を示す模式図である。図において、１は無
端状の幅広の搬送ベルト、２ａ、２ｂは搬送ベルト１が
架け渡された駆動ローラーおよび従動ローラー、３は帯
電ブラシ、４は用紙Ｐを搭載する底板、５は底板４を上
方に付勢するコイルばね、６は用紙を搬送ベルト１から
剥がす分離爪、７は用紙を案内する案内板、８ａ，８ｂ
は用紙を下流に搬送する搬送ローラー、９は用紙センサ
ーである。図示しない駆動モーターに駆動されて駆動ロ
ーラー２ａが回転すると、搬送ベルト１が図で時計回り
方向に周回し、その表面の２つの高分子材料が帯電ブラ
シ３と摺動して摩擦帯電し、そこに正負の静電電荷が誘
起される。誘起された静電電荷は搬送ベルト１に担持さ
れて下方に周回し、底板４に搭載された用紙Ｐの最上紙
の用紙Ｐ１との対向位置まで移動した時、電気力線ａに
よって用紙Ｐ１に誘起された静電電荷との静電引力によ
って用紙Ｐ１を吸引する。静電電荷によって搬送ベルト
１に吸着された用紙Ｐ１は分離爪６によって搬送ベルト
１から剥離され、案内板７によって搬送ローラー８ａ，
８ｂ対の圧接部方向に案内され、搬送ローラー８ａ，８
ｂ対によって下流に搬送される。用紙センサー９は底板
４に搭載された用紙Ｐの残量を検知し、残量検知信号を
出力する。これによって、底板４に搭載された用紙Ｐの
最上紙の用紙Ｐ１の垂直位置が定位置に保たれる。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a schematic diagram illustrating a sheet feeding state of the sheet feeding device according to the first embodiment of the present invention. In the drawing, 1 is an endless wide transport belt, 2a and 2b are a driving roller and a driven roller around which the transport belt 1 is stretched, 3 is a charging brush, 4 is a bottom plate on which the paper P is mounted, and 5 is a bottom plate 4. A coil spring that urges upward, 6 is a separation claw that peels the sheet from the transport belt 1, 7 is a guide plate that guides the sheet, and 8a and 8b.
Is a transport roller for transporting the paper downstream, and 9 is a paper sensor. When the driving roller 2a rotates by being driven by a driving motor (not shown), the conveyor belt 1 rotates clockwise in the figure, and the two polymer materials on the surface slide with the charging brush 3 to be frictionally charged. , Positive and negative electrostatic charges are induced. The induced electrostatic charges are carried by the transport belt 1 and circulate downward, and when they move to a position facing the uppermost sheet P1 of the sheet P mounted on the bottom plate 4, the sheet P1 is moved to the sheet P1 by the line of electric force a. The paper P1 is sucked by the electrostatic attraction with the induced electrostatic charge. The sheet P1 attracted to the transport belt 1 by the electrostatic charge is separated from the transport belt 1 by the separation claw 6, and is guided by the guide plate 7 to the transport rollers 8a,
8b is guided in the direction of the pair of press-contact portions, and the conveying rollers 8a, 8
It is transported downstream by b pairs. The paper sensor 9 detects the remaining amount of the paper P mounted on the bottom plate 4 and outputs a remaining amount detection signal. As a result, the vertical position of the uppermost sheet P1 of the sheets P mounted on the bottom plate 4 is maintained at the fixed position.
【０００７】図１は搬送ベルト１の表面加工処理の工程
を示す工程図である。まず、（ａ）に示すように、見掛
け密度０．０３ g／cm3 の発泡ポリエチレンから成る、
搬送ベルト１の表面基材１０の表面を化学エッチング処
理して、微細な凹凸形状を形成する。次に、（ｂ）に示
すように、表面基材１０の表面にノズルＮからポリエス
テルポリオール（住友バイエル社製）をセルソルブアセ
テートとメチルイソブチルケトンの３対７の混合液に溶
解させた母液（Ａ液）と、ポリイソシアネートを酢酸ブ
チルに溶解させた硬化液（Ｂ液）を混合したウレタン系
塗料を噴射させて塗布し、（ｃ）に示すように、乾燥さ
せて固化することによりウレタン系樹脂層１１を形成
し、（ｄ）に示すように、その表面を研削してウレタン
系樹脂層１１の表面に表面基材１０の微細な凸部を露出
させる。帯電ブラシ３はポリスチレン系樹脂で形成され
ていて、この帯電ブラシ３と上記微細表面構造を有した
搬送ベルト１が摺動摩擦することにより、発泡ポリエチ
レンから成る表面基材１０の微細な凸部の表面は負に、
ウレタン系樹脂層１１の表面は正に帯電し、搬送ベルト
１の表面に正負の微細な電荷分布模様が形成される。FIG. 1 is a process diagram showing the steps of the surface processing of the conveyor belt 1. First, as shown in (a), made of foamed polyethylene having an apparent density of 0.03 g / cm 3 ,
The surface of the surface substrate 10 of the conveyor belt 1 is subjected to a chemical etching treatment to form fine irregularities. Next, as shown in (b), a mother liquor obtained by dissolving polyester polyol (manufactured by Sumitomo Bayer Co., Ltd.) in a 3: 7 mixed solution of cellosolve acetate and methyl isobutyl ketone from the nozzle N on the surface of the surface substrate 10 (see FIG. A) and a curing liquid (solution B) in which polyisocyanate is dissolved in butyl acetate is sprayed to apply a urethane-based paint, and as shown in (c), dried and solidified to form a urethane-based paint. The resin layer 11 is formed, and its surface is ground to expose fine projections of the surface substrate 10 on the surface of the urethane-based resin layer 11 as shown in (d). The charging brush 3 is formed of a polystyrene-based resin, and the charging brush 3 and the conveyor belt 1 having the above-described fine surface structure slide and friction with each other, so that the surface of the fine convex portion of the surface base material 10 made of foamed polyethylene is formed. Is negative,
The surface of the urethane-based resin layer 11 is positively charged, and fine positive and negative charge distribution patterns are formed on the surface of the conveyor belt 1.
【０００８】次に、搬送ベルト１の表面に単に、樹脂層
を塗布形成するだけで搬送ベルト１の表面処理を行うこ
とができる本発明の第２の実施例を説明する。図３は搬
送ベルト１の表面処理の工程を示す工程図である。ま
ず、（ａ）に示すポリアセタール樹脂から成る搬送ベル
ト１の表面に、（ｂ）に示すように、ノズルＮからアク
リルウレタン系樹脂液にテトラフロロエチレン樹脂（テ
フロン〔登録商標〕；三井デュポンフロロケミカル
（株）製ＴＬＰ−１０Ｆ−１）微粒子を分散させた塗料
を噴射、塗布した後、乾燥、固化させる。次に、（ｃ）
に示すように、その表面を研削してアクリルウレタン系
樹脂層１２中に埋め込まれたテトラフロロエチレン樹脂
微粒子１３をアクリルウレタン系樹脂層１２から露出さ
せる。帯電ブラシ３は第１の実施例と同じ材料のものを
用いた。なお、以下に述べる各実施例においても帯電ブ
ラシ３の材料は第１の実施例と同じである。また、搬送
ベルト１の表面処理に用いたアクリルウレタン系樹脂液
は次に示す溶液を配合したものである。 テトラフロロエチレン樹脂微粒子分散アクリルウレタン １００ｇ セロソルブアセトート １５０ｇ アセトン ２００ｇ 本実施例においてはアクリルウレタン系樹脂層１２の表
面が正、テトラフロロエチレン樹脂微粒子１３の表面が
負に帯電する。次に、搬送ベルト１の表面樹脂層を混練
分散工程の後、加硫成形を行って形成する本発明の第３
の実施例を説明する。図４は搬送ベルト１の表面基材１
０の成形加工工程を示す工程図である。（ａ）に示すよ
うに、異なる周速度で逆方向に接触回転する１対のオー
プンロールＲ１，Ｒ２の間にミラブルウレタンゴム１４
とテトラフロロエチレン樹脂微粒子１３を供給して混練
し、テトラフロロエチレン樹脂微粒子１３をミラブルウ
レタンゴム１４中に分散させる。混練分散によって、被
成形体は一方のオープンロールＲ２の周囲に集積する。
この被成形体を取り出し、１６０°Ｃ、２０分間の加硫
成形硬化処理によって円筒状の成形体となる。第２の実
施例と同様に、その表面を研削してミラブルウレタンゴ
ム１４中に分散されたテトラフロロエチレン樹脂微粒子
１３を表面に露出させ、（ｂ）に示す表面基材１０を得
る。本実施例においてはミラブルウレタンゴム１４の表
面が正、テトラフロロエチレン樹脂微粒子１３の表面が
負に帯電する。Next, a description will be given of a second embodiment of the present invention in which the surface treatment of the conveyor belt 1 can be performed only by applying and forming a resin layer on the surface of the conveyor belt 1. FIG. 3 is a process diagram showing a surface treatment process of the conveyor belt 1. First, as shown in (b), a tetrafluoroethylene resin (Teflon (registered trademark); DuPont Mitsui Fluorochemical) is applied from the nozzle N to an acrylic urethane resin solution on the surface of the conveyor belt 1 made of a polyacetal resin shown in (a), as shown in (b). TLP-10F-1 manufactured by Co., Ltd.) After spraying and applying a coating material in which fine particles are dispersed, the coating material is dried and solidified. Next, (c)
As shown in FIG. 1, the surface is ground to expose the tetrafluoroethylene resin fine particles 13 embedded in the acrylic urethane resin layer 12 from the acrylic urethane resin layer 12. The charging brush 3 was made of the same material as that of the first embodiment. In each of the embodiments described below, the material of the charging brush 3 is the same as that of the first embodiment. The acrylic urethane-based resin liquid used for the surface treatment of the conveyor belt 1 contains the following solution. In this embodiment, the surface of the acrylic urethane resin layer 12 is positively charged, and the surface of the tetrafluoroethylene resin fine particles 13 is negatively charged. Next, after the kneading and dispersing step, the surface resin layer of the conveyor belt 1 is formed by performing vulcanization molding.
An example will be described. FIG. 4 shows the surface substrate 1 of the conveyor belt 1.
It is a process drawing which shows the forming process of No. 0. As shown in (a), the millable urethane rubber 14 is placed between a pair of open rolls R1 and R2 that rotate in opposite directions at different peripheral speeds.
And the tetrafluoroethylene resin fine particles 13 are supplied and kneaded, and the tetrafluoroethylene resin fine particles 13 are dispersed in the millable urethane rubber 14. Due to the kneading and dispersion, the molded body is accumulated around one of the open rolls R2.
The molded body is taken out and subjected to vulcanization molding hardening treatment at 160 ° C. for 20 minutes to form a cylindrical molded body. Similarly to the second embodiment, the surface is ground to expose the tetrafluoroethylene resin fine particles 13 dispersed in the millable urethane rubber 14 to the surface, thereby obtaining the surface substrate 10 shown in (b). In the present embodiment, the surface of the millable urethane rubber 14 is positively charged, and the surface of the tetrafluoroethylene resin fine particles 13 is negatively charged.
【０００９】図５は本発明の第４の実施例に係る搬送ベ
ルト１の表面加工処理の工程を示す工程図である。ま
ず、（ａ）に示す搬送ベルト１のエポキシ樹脂から成る
表面基材１０の表面に、（ｂ）に示すように、斜め方向
に延設され互いに交差するローレット状の多数の凹溝ｇ
を切削形成する。次に、（ｃ）に示すように、その表面
に第１の実施例で用いたものと同じ樹脂を塗装して、ウ
レタン系樹脂層１１を形成し、凹溝ｇと共に表面基材１
０の表面全体を被覆する。その後、（ｄ）に示すよう
に、その表面を研削してウレタン系樹脂層１１の間に表
面基材１０の凸部を露出させる。本実施例においてはウ
レタン系樹脂層１１の表面が正、エポキシ樹脂から成る
表面基材１０の表面が負に帯電する。なお、塗装方法と
しては、噴射塗装、浸漬塗装等の周知の塗装方法を用い
ることができる。次に、搬送ベルト１の表面樹脂層を射
出成形により形成する本発明の第５の実施例を説明す
る。図６は本発明の第５の実施例に係る搬送ベルト１の
射出成形による表面被覆処理の工程を示す模式図であ
る。本実施例では、搬送ベルト１の基材として発泡ウレ
タン樹脂を用い、表面被覆樹脂として流動性の高いポリ
プロピレン樹脂を用いた。金型Ｍ１，Ｍ２，Ｍ３内にポ
リプロピレン樹脂液を注入し、その中に収納された搬送
ベルト１の基材の表面にポリプロピレン樹脂層を形成す
る。本実施例においても搬送ベルト１の荒い表面に形成
されたポリプロピレン樹脂層を研削して、搬送ベルト１
の発泡ウレタン樹脂の表層の一部を露出させる。本実施
例においてはウレタン系樹脂層の表面が正、ポリプロピ
レン樹脂層の表面が負に帯電する。FIG. 5 is a process chart showing the steps of the surface processing of the conveyor belt 1 according to the fourth embodiment of the present invention. First, as shown in (b), a large number of knurled grooves g extending obliquely and intersecting with each other on the surface of a surface base material 10 made of epoxy resin of the conveyor belt 1 shown in (a).
To cut and form. Next, as shown in (c), the surface is coated with the same resin as that used in the first embodiment to form a urethane-based resin layer 11 and, together with the grooves g, the surface substrate 1
0 cover the entire surface. Thereafter, as shown in (d), the surface is ground to expose the projections of the surface substrate 10 between the urethane-based resin layers 11. In this embodiment, the surface of the urethane-based resin layer 11 is positively charged, and the surface of the surface substrate 10 made of epoxy resin is negatively charged. In addition, as a coating method, a well-known coating method such as spray coating or dip coating can be used. Next, a description will be given of a fifth embodiment of the present invention in which the surface resin layer of the conveyor belt 1 is formed by injection molding. FIG. 6 is a schematic view showing a step of a surface coating treatment by injection molding of the conveyor belt 1 according to a fifth embodiment of the present invention. In the present embodiment, a urethane foam resin was used as the base material of the conveyor belt 1, and a highly fluid polypropylene resin was used as the surface coating resin. A polypropylene resin liquid is injected into the molds M1, M2, M3, and a polypropylene resin layer is formed on the surface of the base material of the conveyor belt 1 housed therein. Also in the present embodiment, the polypropylene resin layer formed on the rough surface of the conveyor belt 1 is ground, and the conveyor belt 1 is ground.
A part of the surface layer of the urethane foam resin is exposed. In this embodiment, the surface of the urethane resin layer is positively charged, and the surface of the polypropylene resin layer is negatively charged.
【００１０】以上述べた各実施例の給紙装置について、
普通紙を８０mm／s の線速で給紙試験を行った結果、何
れも良好な給紙性能を示し、給紙された用紙の帯電は生
じなかった。なお、搬送ベルト１、あるいは、その表面
基材１０および、その表面を被覆する表面被覆樹脂層、
あるいは、表面被覆樹脂層と、その中に分散される樹脂
微粒子および帯電ブラシ３の材料は上述の各実施例で述
べた材料に限らず、搬送ベルト１の表面に露出する異な
る材質の樹脂をそれぞれ帯電列の陰性および陽性の材質
の中から選択し、帯電ブラシ３の材料をそれらの材質の
中間の性質を有する材質の中から選択すれば良い。ま
た、表面被覆樹脂層の中に分散される樹脂微粒子は必ず
しも微粒子に限らず、繊維状、微細板状、織布状または
網状のものであっても良い。Regarding the paper feeder of each embodiment described above,
As a result of performing a paper feeding test on plain paper at a linear speed of 80 mm / s, all of the papers showed good paper feeding performance, and the fed paper did not charge. In addition, the conveyor belt 1 or the surface base material 10 and a surface coating resin layer that covers the surface thereof,
Alternatively, the material of the surface coating resin layer, the resin fine particles dispersed therein, and the material of the charging brush 3 are not limited to the materials described in each of the above-described embodiments, and resins of different materials exposed on the surface of the transport belt 1 may be used. What is necessary is just to select from the negative and positive material of a charging line, and to select the material of the charging brush 3 from the material which has the intermediate property of those materials. The fine resin particles dispersed in the surface coating resin layer are not necessarily limited to fine particles, but may be in the form of fibers, fine plates, woven fabrics or nets.
【００１１】[0011]
【発明の効果】請求項１記載の発明によれば、表面には
第１の帯電体中に第２の帯電体が点状、線状または細幅
の帯状を成して分布しており、第１の帯電体と第２の帯
電体は帯電列上で離れた位置に位置付けられるものであ
るので、摩擦により表面に第１の帯電体と第２の帯電体
の分布に対応して、正負の静電気が誘起され、この正負
の静電気間に形成されるループ状の電気力線に沿って紙
面に誘起される静電気との吸引力により、近接して配置
される用紙を吸着するから、吸着される用紙自体が一方
の極性に帯電することが無く、例えば給紙装置に使用し
た場合、紙詰まりや感光体上の潜像への悪影響を防止で
き、また、用紙１枚のみが吸着搬送されるから、用紙の
重送を防止でき、強力な駆動手段を必要としないから装
置価格を廉価にでき、安定な搬送力を維持することがで
きる。請求項２記載の発明によれば、第１の帯電体の表
面に形成された微細な凹穴または細幅の溝内に第２の帯
電体が埋め込まれた構成としたので、表面の摩擦帯電層
の形成が容易になる。請求項３記載の発明によれば、第
１の帯電体の内部に分散された微粒子、繊維または微小
な柱状体で第２の帯電体を構成したので、表面の第１の
帯電体と第２の帯電体の微細な分布を比較的容易に形成
することができる。請求項４記載の発明によれば、第１
の帯電体の表面に形成された微細な凹穴または細幅の溝
を埋め込むように、第１の帯電体の表面を覆う第２の帯
電体の薄層を形成する工程と、第２の帯電体の表層と第
１の帯電体の一部を切削、研削または研摩し、第２の帯
電体と共に第１の帯電体を表面に露出させる工程を含む
ようにしたので、比較的簡単な方法で摩擦帯電構造体の
表面の第１の帯電体と第２の帯電体の微細な分布を形成
することができる。請求項５記載の発明によれば、液状
の第１の帯電体の内部に微粒子、繊維または微小な柱状
体の第２の帯電体を分散させた分散液を表面に塗装して
硬化させる工程と、その表面を切削、研削または研摩
し、第１の帯電体と共に第２の帯電体を表面に露出させ
る工程を含むようにしたので、摩擦帯電構造体の表面の
第１の帯電体と第２の帯電体の微細な分布の形成が一層
容易になる。According to the invention 請 Motomeko 1, wherein, according to the present invention, on the surface
The second charged body is dotted, linear, or narrow in the first charged body
And the first charged body and the second band
The conductor is located at a remote position on the charging train.
Runode, corresponding to the distribution of the first charging member and a second charging member on the front surface Ri by the friction, positive and negative static electricity is induced, loop-shaped lines of electric force formed between the positive and negative static electricity the attraction between the static electricity induced on the paper surface along the, use because adsorbs paper for being closely spaced, without the paper itself to be adsorbed is charged to one polarity, for example, the sheet feeding apparatus I
In this case, paper jams and adverse effects on the latent image on the photoreceptor can be prevented, and since only one sheet is sucked and conveyed, double feeding of the sheets can be prevented and a strong driving means is not required. The price can be reduced and a stable conveying force can be maintained. According to the second aspect of the present invention, since a structure in which the second charging member is embedded in the groove of the first charging member fine recessed hole or narrow formed on the surface of the friction on the front face The formation of the charging layer is facilitated. According to a third aspect of the present invention, fine particles are dispersed in the interior of the first charging member, so to constitute a second charge body fibers or fine columnar body, a first charge of the front surface first The fine distribution of the charging member 2 can be formed relatively easily. According to the fourth aspect of the invention, the first
Forming a thin layer of a second charged body covering the surface of the first charged body so as to fill a fine concave hole or a narrow groove formed on the surface of the charged body; cutting the surface layer and the portion of the first charge of the body, grinding or polishing, since the first charging member with the second charged material has to include the step of exposing the front surface, a relatively simple method Thus, a fine distribution of the first and second charged bodies on the surface of the frictionally charged structure can be formed. According to the invention of claim 5 wherein the step of causing particles in the interior of the first charging of liquid, the fibers or fine columnar body second charge dispersion obtained by dispersing the cured painted on the front surface When, the surface cutting, grinding or polishing, since the second charging member with the first charging member was to include a step of exposing the front surface, a first charge of the surface of the frictional charging structure Formation of a fine distribution of the second charged body is further facilitated.
【図１】本発明の第１の実施例に係る搬送ベルトの表面
加工処理の工程を示す工程図である。FIG. 1 is a process diagram showing a process of a surface processing of a conveyor belt according to a first embodiment of the present invention.
【図２】給紙装置の給紙状態を示す模式図である。FIG. 2 is a schematic diagram illustrating a sheet feeding state of a sheet feeding device.
【図３】本発明の第２の実施例に係る搬送ベルトの表面
処理の工程を示す工程図である。FIG. 3 is a process chart showing a process of surface treatment of a conveyor belt according to a second embodiment of the present invention.
【図４】本発明の第３の実施例に係る搬送ベルトの表面
基材の成形加工工程を示す工程図である。FIG. 4 is a process diagram showing a forming process of a surface base material of a conveyor belt according to a third embodiment of the present invention.
【図５】本発明の第４の実施例に係る搬送ベルトの表面
加工処理の工程を示す工程図である。FIG. 5 is a process diagram showing a process of surface processing of a conveyor belt according to a fourth embodiment of the present invention.
【図６】本発明の第５の実施例に係る搬送ベルトの射出
成形による表面被覆処理の工程を示す模式図である。FIG. 6 is a schematic view showing a step of a surface coating treatment by injection molding of a conveyor belt according to a fifth embodiment of the present invention.
１ 搬送ベルト ２ａ 駆動ローラー ２ｂ 従動ローラー ３ 帯電ブラシ １０ 表面基材 １１ ウレタン系樹脂層 １２ アクリルウレタン系樹脂層 １３ テトラフロロエチレン樹脂微粒子 １４ ミラブルウレタンゴム DESCRIPTION OF SYMBOLS 1 Conveying belt 2a Drive roller 2b Follower roller 3 Charging brush 10 Surface base material 11 Urethane resin layer 12 Acrylic urethane resin layer 13 Tetrafluoroethylene resin fine particles 14 Millable urethane rubber
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B65H 5/00 B65H 3/18 B65H 3/04 310 G03G 15/00 514 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B65H 5/00 B65H 3/18 B65H 3/04 310 G03G 15/00 514
Claims (5)
擦帯電構造体において、前記表面には 第１の帯電体中に第２の帯電体が点状、線
状または細幅の帯状を成して分布しており、前記第１の
帯電体と前記第２の帯電体は帯電列上で離れた位置に位
置付けられるものであることを特徴とする摩擦帯電構造
体。(1) A friction induced on a surface by friction.
Oite the friction charging structure, the surface second charging member is spot-like while the first charging member, are distributed to form a strip-shaped linear or narrow, the first charging member triboelectric charging structure, characterized in that positioned et al is in position the second charging member is away on triboelectric series and
Body .
表面に形成された微細な凹穴または細幅の溝内に埋め込
まれたものであることを特徴とする請求項１記載の摩擦
帯電構造体。2. The apparatus according to claim 1, wherein said second charged body is embedded in a fine concave hole or a narrow groove formed on a surface of said first charged body. Friction
Charged structure .
内部に分散された微粒子、繊維または微小な柱状体であ
ることを特徴とする請求項１記載の摩擦帯電構造体。Wherein said second charging member triboelectrification structure of claim 1, wherein said first charging member inside dispersed particles of a fiber or fine columnar body.
凹穴または細幅の溝を埋め込むように、前記第１の帯電
体の表面を覆う第２の帯電体の薄層を形成する工程と、
前記第２の帯電体の表層と前記第１の帯電体の一部を切
削、研削または研摩し、前記第２の帯電体と共に前記第
１の帯電体を表面に露出させる工程を含むことを特徴と
する摩擦帯電構造体の製造方法。4. A thin layer of a second charged body covering the surface of the first charged body is formed so as to fill a fine concave hole or a narrow groove formed on the surface of the first charged body. The process of
Cutting a portion of the surface layer and the first charge of the second charging member, grinding or polishing, further comprising the step of exposing the first charging member on the front side together with the second charge member A method for producing a triboelectric structure according to the present invention.
維または微小な柱状体の第２の帯電体を分散させた分散
液を表面に塗装して硬化させる工程と、その表面を切
削、研削または研摩し、前記第１の帯電体と共に前記第
２の帯電体を表面に露出させる工程を含むことを特徴と
する摩擦帯電構造体の製造方法。Inside the wherein the first charging of liquid particles, the steps of the fibers or fine columnar body second charge dispersion obtained by dispersing the cured painted on the front surface, the surface cutting, grinding or polishing method for producing a frictional charging structure characterized by comprising the step of exposing the front surface of the second charging member together with the first charging member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34442992A JP3253386B2 (en) | 1992-12-24 | 1992-12-24 | Friction charging structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34442992A JP3253386B2 (en) | 1992-12-24 | 1992-12-24 | Friction charging structure and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06191662A JPH06191662A (en) | 1994-07-12 |
| JP3253386B2 true JP3253386B2 (en) | 2002-02-04 |
Family
ID=18369197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34442992A Expired - Fee Related JP3253386B2 (en) | 1992-12-24 | 1992-12-24 | Friction charging structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3253386B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305054A (en) † | 1991-02-22 | 1994-04-19 | Canon Kabushiki Kaisha | Imaging method for manufacture of microdevices |
| DE4303028C2 (en) * | 1992-02-03 | 1997-08-14 | Hitachi Ltd | Projection exposure device |
| EP1303037A4 (en) * | 2000-07-17 | 2005-04-20 | Toyo Communication Equip | Piezoelectric oscillator |
-
1992
- 1992-12-24 JP JP34442992A patent/JP3253386B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06191662A (en) | 1994-07-12 |
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