JPH0474710B2 - - Google Patents
Info
- Publication number
- JPH0474710B2 JPH0474710B2 JP1065835A JP6583589A JPH0474710B2 JP H0474710 B2 JPH0474710 B2 JP H0474710B2 JP 1065835 A JP1065835 A JP 1065835A JP 6583589 A JP6583589 A JP 6583589A JP H0474710 B2 JPH0474710 B2 JP H0474710B2
- Authority
- JP
- Japan
- Prior art keywords
- brush
- conductive
- base
- bristles
- brush bristles
- 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
Links
- 239000004744 fabric Substances 0.000 claims description 24
- 229920000642 polymer Polymers 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 description 12
- 108091008695 photoreceptors Proteins 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Brushes (AREA)
- Cleaning In Electrography (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電子複写機におけるクリーニングブラ
シや帯電ブラシなどに使用する導電性ブラシロー
ルの製造法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a conductive brush roll used as a cleaning brush, charging brush, etc. in an electronic copying machine.
従来、電子複写機におけるクリーニングブラシ
や帯電ブラシなどに使用される導電性ブラシロー
ルの製造法としては、カーボン粉などの導電性微
粉末を分散させたポリマよりなる芯体ａの表面
を、第１０図に示すように、絶縁性ポリマよりな
る被覆層（以下サヤ部という）ｂで被覆してブラ
シ毛を構成し、このブラシ毛を円筒状の支持体表
面に多数植設するようにしたものが知られてい
る。
Conventionally, as a manufacturing method for conductive brush rolls used for cleaning brushes, charging brushes, etc. in electronic copying machines, the surface of a core body a made of a polymer in which conductive fine powder such as carbon powder is dispersed is As shown in the figure, a brush bristles are formed by coating with a coating layer (hereinafter referred to as the sheath) b made of an insulating polymer, and a large number of these bristles are planted on the surface of a cylindrical support. Are known.
かかる製造法により製造された導電性ブラシロ
ールによれば、サヤ部に用いられる絶縁性ポリマ
が比較的自由に選択できるため、芯体となる繊維
に、被接触体となる感光体表面に悪影響を及ぼさ
ないものが使用できると共に、温度や湿度の影響
力もほとんど受けないなどの長所を有している。 According to the conductive brush roll manufactured by such a manufacturing method, the insulating polymer used in the sheath can be selected relatively freely, so that it does not have an adverse effect on the fibers that form the core or the surface of the photoreceptor that is the object to be contacted. It has the advantage that it can be used with materials that do not affect the temperature and is almost unaffected by temperature and humidity.
その反面、ブラシ毛と支持体との間がサヤ部ｂ
により絶縁されていて、これらの間の導電はサヤ
部ｂのトンネル効果を利用して行なうため、使用
時高い電圧を印加しなければならない。また、使
用中にブラシ毛の根元部の被覆が部分的に破壊さ
れると、そのブラシ毛のみに高電圧が印加される
ため、感光体が損傷されたり、正常な部分が電圧
降下を起してクリーニング不良を発生するなどの
不具合があつた。
On the other hand, the sheath part b between the brush bristles and the support body
Since conduction between these is performed using the tunnel effect of the sheath b, a high voltage must be applied during use. Additionally, if the coating at the base of the brush bristles is partially destroyed during use, high voltage will be applied only to that bristle, which may damage the photoreceptor or cause a voltage drop in normal parts. There were problems such as poor cleaning.
本発明は前述の不具合を改善する目的でなされ
たものである。 The present invention has been made for the purpose of improving the above-mentioned problems.
本発明に係る導電性ブラシロールの製造法は、
前述の目的を達成するために、
導電性芯体の表面を絶縁性ポリマよりなるサヤ
部で被覆してブラシ毛３ｂを形成し、これを基布
３ａに植毛してパイル布３を構成すると共に、
このパイル布３を筒状支持体２の表面に巻き付
けて導電性ブラシロール本体１を構成し、
前記ブラシ毛３ｂに絶縁破壊処理を施してブラ
シ毛３ｂ基部の被覆層を破壊することにより、ブ
ラシ毛３ｂ基部の導電性芯体と基布３ａとを電気
的に導通させてなること
を特徴とするものである。
The method for manufacturing a conductive brush roll according to the present invention includes:
In order to achieve the above-mentioned object, the surface of the conductive core body is covered with a sheath made of an insulating polymer to form brush bristles 3b, and the bristles are planted on the base fabric 3a to constitute the pile fabric 3. , This pile cloth 3 is wrapped around the surface of the cylindrical support 2 to form the conductive brush roll main body 1, and the brush bristles 3b are subjected to dielectric breakdown treatment to destroy the coating layer at the base of the brush bristles 3b. It is characterized in that the conductive core at the base of the brush bristles 3b and the base cloth 3a are electrically connected to each other.
本発明の一実施例を図面を参照して詳述する
と、図において１は導電性ブラシロールの本体
で、円筒状の支持体２表面に、帯状のパイル布３
を螺旋状に巻付けることにより構成されている。
前記パイル布３は、基布３ａに３〜10デニールの
導電性繊維よりなるブラシ毛３ｂを織り込んでさ
らに基布３ａ部分を導電性接着剤４により固めた
もので、ブラシ毛３ａはカーボン粉などの導電性
微粉末を分散させたポリマよりなる芯体の表面を
絶縁性ポリマよりなる厚さ５〜10μのサヤ部で被
覆した構成となつている。また前記ブラシ毛３ｂ
は、50〜100本を束にした基布３ａの縦糸３a′に、
第３図に示すようにＶ字形に、または第４図に示
すように、Ｗ字形に織り込まれている。
One embodiment of the present invention will be described in detail with reference to the drawings. In the drawing, 1 is a main body of a conductive brush roll, a cylindrical support 2 has a belt-like pile cloth 3 on the surface.
It is constructed by spirally winding.
The pile cloth 3 is made by weaving brush bristles 3b made of conductive fibers of 3 to 10 deniers into a base cloth 3a, and further hardening the base cloth 3a with a conductive adhesive 4, and the brush bristles 3a are made of carbon powder or the like. The surface of a core made of a polymer in which conductive fine powder is dispersed is covered with a sheath part made of an insulating polymer and having a thickness of 5 to 10 microns. In addition, the brush bristles 3b
is the warp thread 3a' of the base fabric 3a, which is a bundle of 50 to 100 threads,
It is woven in a V-shape as shown in FIG. 3, or in a W-shape as shown in FIG.
一方前述の如く構成されたブラシロール本体１
は次の工程を経てブラシ毛３ｂの基部と基布３ａ
間に導電性が与えられるようになつている。 On the other hand, the brush roll main body 1 configured as described above
The base of the brush bristles 3b and the base fabric 3a are formed through the following process.
Conductivity is provided between the two.
すなわち、前記ブラシロール本体１は基布３ａ
が接地された状態で、第５図ａ，ｂに示すよう
に、支持され、一定方向へ回転されている。また
ブラシロール本体１の近傍には軸線と平行するよ
うにブレード状の電極５が設置され、ブラシロー
ル本体１の回転に伴いブラシ毛３ａの先端がこの
電極５に接するようになつている。前記電極５に
は直流電源６により電圧が電流を制限する抵抗８
を介して印加されていて、ブラシ毛３ｂの先端が
電極５へ接する毎に電極５よりブラシ毛３ｂを経
て基布３ａへ電流が流れ、このときブラシ毛３ｂ
基部のサヤ部による絶縁が破壊されて、ブラシ毛
３ｂの芯体と基布３ａが導通される。 That is, the brush roll main body 1 is made of base fabric 3a.
is supported and rotated in a fixed direction, as shown in FIGS. 5a and 5b, in a grounded state. Further, a blade-shaped electrode 5 is installed near the brush roll main body 1 so as to be parallel to the axis, and as the brush roll main body 1 rotates, the tips of the brush bristles 3a come into contact with the electrode 5. The electrode 5 is provided with a resistor 8 whose voltage limits the current by a DC power source 6.
Each time the tip of the brush bristles 3b comes into contact with the electrode 5, a current flows from the electrode 5 through the brush bristles 3b to the base cloth 3a, and at this time, the brush bristles 3b
The insulation by the sheath portion of the base is broken, and the core of the brush bristles 3b and the base cloth 3a are electrically connected.
なお、前記実施例では、ブラシ毛３ｂの一部の
絶縁が破壊されると、その部分に電流が集中して
流れる虞れがあるので、これを改善するため、第
６図ａ，ｂに示すように、電極５の幅を小さくし
てこの電極５を軸線方向へ移動させながら各ブラ
シ毛３ｂ基部の絶縁を破壊するようにしてもよ
い。 In the above-mentioned embodiment, if the insulation of a part of the brush bristles 3b is broken, there is a risk that the current will concentrate and flow in that part. As shown, the width of the electrode 5 may be reduced and the insulation at the base of each brush bristle 3b may be destroyed while moving the electrode 5 in the axial direction.
また、第７図は電極５を筒状にして、この電極
５内にブラシロール本体１を挿入して別の実施例
を示すもので、電極５と電源６の間に設けたスイ
ツチ７を入れることにより短時間で処理を可能に
したもので、量産に適した処理方法である。 FIG. 7 shows another embodiment in which the electrode 5 is made into a cylinder and the brush roll main body 1 is inserted into the electrode 5, and a switch 7 provided between the electrode 5 and the power source 6 is turned on. This makes it possible to process in a short time, making it a processing method suitable for mass production.
一方、第８図は前述のようにして得られた導電
性ブラシロールを電子複写機のクリーニングブラ
シ１０として用いた実施例を示すもので、感光体
１１の表面に残留する未転写トナーはクリーニン
グコロトロン１２により除電または帯電された後
クリーニングブラシ１０により感光体１１の表面
より除去されるようになつている。前記実施例の
場合、クリーニングブラシ１０には、繊維径10デ
ニール、繊維密度が３万本／in2の導電性ブラシ
ロールを用いて、これを周速500mm／secで回転さ
せ、また、ブラシ毛３ｂと感光体１１のニツプ幅
は15mmとした。またクリーニングブラシ１０によ
り除去したトナーを−500Vの印加されたデイト
クリーニングロール１３により吸着捕捉した後、
デイトクリーニングロール１３に接触するブレー
ド１４により掻き落して回収するようなつてい
る。 On the other hand, FIG. 8 shows an example in which the conductive brush roll obtained as described above is used as the cleaning brush 10 of an electronic copying machine. After being neutralized or charged by the tron 12, it is removed from the surface of the photoreceptor 11 by the cleaning brush 10. In the case of the above embodiment, a conductive brush roll with a fiber diameter of 10 denier and a fiber density of 30,000/in 2 is used as the cleaning brush 10, and this is rotated at a circumferential speed of 500 mm/sec. The nip width between photoreceptor 3b and photoreceptor 11 was 15 mm. Further, after the toner removed by the cleaning brush 10 is adsorbed and captured by the date cleaning roll 13 to which -500V is applied,
The date cleaning roll 13 is scraped off and collected by a blade 14 that comes into contact with the date cleaning roll 13.
また、第９図はブラシロール本体１の両端に金
属性のエンドキヤツプ１５を設けて、印加電圧が
エンドキヤツプ１５から基布３ａ、そしてブラシ
毛３ｂへと伝達されるようにした別の実施例で、
絶縁破壊処理の施されていない従来の同様な導電
ブラシロールの場合1KVの電圧を印加する必要
があつたが、本発明のものでは250Vで十分であ
つた。 FIG. 9 shows another embodiment in which metallic end caps 15 are provided at both ends of the brush roll main body 1 so that the applied voltage is transmitted from the end caps 15 to the base fabric 3a and then to the brush bristles 3b. in,
In the case of a similar conventional conductive brush roll without dielectric breakdown treatment, it was necessary to apply a voltage of 1 KV, but in the case of the present invention, 250 V was sufficient.
この発明は、前述のように、ブラシ毛３ｂ基部
の導電性芯体と基布３ａとを、ブラシ毛３ｂに絶
縁破壊処理を施してブラシ毛３ｂ基部の被覆層を
破壊することにより、電気的に導通させているか
ら、作業が容易であるばかりでなく、得られた導
電性ブラシロールは、ブラシ毛３ｂ基部の導電性
芯体と基布３ａを電気的に導通させていることか
ら、クリーニングブラシや帯電ブラシなどに使用
する場合、印加電圧が小さくてよいため、電源の
小型化とこれを伴う価格低減が図れるようにな
る。またブラシ毛３ｂのサヤ部により芯体が保護
されるため、感光体との接触による摩耗が少な
く、かつヘタリもほとんどないため寿命の向上が
図れると共に、温度や湿度などの影響も少ないな
どの効果がある。
As described above, the present invention is capable of electrically connecting the conductive core and base cloth 3a at the base of the brush bristles 3b by subjecting the brush bristles 3b to dielectric breakdown treatment to destroy the coating layer at the base of the brush bristles 3b. The conductive brush roll obtained is not only easy to work with, but also easy to clean because the conductive core at the base of the brush bristles 3b and the base fabric 3a are electrically conductive. When used for brushes, charging brushes, etc., the applied voltage may be small, so it is possible to downsize the power supply and reduce its cost accordingly. In addition, since the core is protected by the sheath of the brush bristles 3b, there is less wear due to contact with the photoreceptor, and there is almost no wear and tear, which improves the service life and is less affected by temperature, humidity, etc. There is.
図面はこの発明の一実施例を示し、第１図はブ
ラシロールの一部切欠斜視図、第２図はパイル布
の斜視図、第３図及び第４図はブラシ毛及び基布
の拡大断面図、第５図ａ，ｂ、第６図ａ，ｂ及び
第７図は絶縁破壊処理方法を示す説明図、第８図
はクリーニングブラシに使用した例を示す説明
図、第９図はクリーニングブラシの別の実施例を
示す説明図、第１０図はブラシ毛の拡大図であ
る。
１は導電性ブラシロール本体、２は支持体、３
はパイル布、３ａは基布、３ｂはブラシ毛。
The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view of a brush roll, Fig. 2 is a perspective view of pile cloth, and Figs. 3 and 4 are enlarged cross-sections of brush bristles and base fabric. Figures 5a, b, 6a, b, and 7 are explanatory diagrams showing the dielectric breakdown treatment method, Figure 8 is an explanatory diagram showing an example of use in a cleaning brush, and Figure 9 is a cleaning brush. FIG. 10 is an enlarged view of the brush bristles. 1 is a conductive brush roll main body, 2 is a support body, 3
is pile cloth, 3a is base fabric, and 3b is brush bristles.
Claims (1)
覆層で被覆してブラシ毛３ｂを形成し、これを基
布３ａに植毛してパイル布３を構成すると共に、 このパイル布３を筒状支持体２の表面に巻き付
けて導電性ブラシロール本体１を構成し、 前記ブラシ毛３ｂに絶縁破壊処理を施してブラ
シ毛３ｂ基部の被覆層を破壊することにより、ブ
ラシ毛３ｂ基部の導電性芯体と基布３ａとを電気
的に導通させてなる導電性ブラシロールの製造
法。[Scope of Claims] 1. The surface of the conductive core body is coated with a coating layer made of an insulating polymer to form brush bristles 3b, and the brush bristles 3b are implanted on the base fabric 3a to constitute the pile fabric 3. The conductive brush roll main body 1 is constructed by wrapping the pile cloth 3 around the surface of the cylindrical support 2, and the brush bristles 3b are subjected to dielectric breakdown treatment to destroy the coating layer at the base of the bristles 3b. A method for manufacturing a conductive brush roll in which the conductive core of the base 3b and the base fabric 3a are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6583589A JPH01280784A (en) | 1989-03-17 | 1989-03-17 | Conductive brush roll for electronic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6583589A JPH01280784A (en) | 1989-03-17 | 1989-03-17 | Conductive brush roll for electronic copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01280784A JPH01280784A (en) | 1989-11-10 |
| JPH0474710B2 true JPH0474710B2 (en) | 1992-11-26 |
Family
ID=13298471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6583589A Granted JPH01280784A (en) | 1989-03-17 | 1989-03-17 | Conductive brush roll for electronic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01280784A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3331232B2 (en) * | 1993-02-05 | 2002-10-07 | 日本バイリーン株式会社 | Corona discharge device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58111078A (en) * | 1981-12-24 | 1983-07-01 | Konishiroku Photo Ind Co Ltd | Cleaning device |
| JPS59100480A (en) * | 1982-11-30 | 1984-06-09 | Ricoh Co Ltd | Cleaning device of copying machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5984559U (en) * | 1982-11-30 | 1984-06-07 | 株式会社東芝 | Cleaning device for electrophotographic equipment |
-
1989
- 1989-03-17 JP JP6583589A patent/JPH01280784A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58111078A (en) * | 1981-12-24 | 1983-07-01 | Konishiroku Photo Ind Co Ltd | Cleaning device |
| JPS59100480A (en) * | 1982-11-30 | 1984-06-09 | Ricoh Co Ltd | Cleaning device of copying machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01280784A (en) | 1989-11-10 |
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