JPH06110275A - Paper feed belt for copying machine - Google Patents
Paper feed belt for copying machineInfo
- Publication number
- JPH06110275A JPH06110275A JP25848692A JP25848692A JPH06110275A JP H06110275 A JPH06110275 A JP H06110275A JP 25848692 A JP25848692 A JP 25848692A JP 25848692 A JP25848692 A JP 25848692A JP H06110275 A JPH06110275 A JP H06110275A
- Authority
- JP
- Japan
- Prior art keywords
- paper feed
- copying machine
- feed belt
- rubber
- por
- 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
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、複写機の自動原稿送
り部等に用いられる複写機用紙送りベルトに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feed belt for a copying machine used in an automatic document feeder of a copying machine.
【０００２】[0002]
【従来の技術】複数枚の原稿を連続的に自動複写できる
複写機として図１に示すようなものがある。すなわち、
この複写機１は、本体の一側部の上端に配設されている
原稿用置台２に、複数枚の原稿３を、表面を下に向けた
状態で積層状に載置し、原稿台カバー４を、一端縁を中
心に図示の矢印Ａのように回転させて原稿台ガラス５上
に倒し、その状態でスイッチ（図示せず）を押して作動
させると、原稿台カバー４の裏面に設けられている白色
ゴム製の紙送りベルト６が矢印Ｂ方向に走行し、原稿用
置台２に載置された原稿３を、コピーを終えるごとに上
部側から一枚ずつ原稿台ガラス５上に搬送するようにな
っている。この場合、上記コピーに応動して、複写紙用
カセット７または１１に収納されている複写紙８または
１０が複写機１の内部に搬送され、原稿３の表面や文字
や図柄等が転写されてコピートレイ９に送り出される。
図において、１７はコピーを終えた原稿３の収納トレイ
である。このような複写機１の上記紙送りベルト６は、
図２に示すように、２個の駆動ローラ１２の回転により
走行し原稿３を搬送するようになっている。この紙送り
ベルト６は、原稿３を搬送するために摩擦力を必要と
し、また原稿３の排出のために原稿ばなれ性を必要とし
ている。しかし、上記原稿３を配送するのに必要な摩擦
力により紙送りベルト６に静電気が帯電するようにな
り、その結果、例えば紙送りベルト６に、搬送物である
原稿３が吸着し原稿ばなれ性が低下する等の問題が生じ
る。このため、従来から、紙送りベルト６を形成するた
めに用いられるゴム組成物として、エチレン−プロピレ
ン−ジエンゴム（以下「ＥＰＤＭ」と略す）とエピクロ
ルヒドリン−エチレンオキサイド−アリルグリシジルエ
ーテルの三元共重合体（以下「ＥＣＯ」と称す）とを主
成分とするものが用いられている。2. Description of the Related Art There is a copying machine shown in FIG. 1 as a copying machine capable of continuously automatically copying a plurality of originals. That is,
In this copying machine 1, a plurality of originals 3 are placed in a stacked manner on a document holder 2 arranged at the upper end of one side of the main body with the front side facing down, and the original holder cover is placed. 4 is rotated around one edge as shown by an arrow A in the drawing to tilt it on the platen glass 5, and in that state, a switch (not shown) is pressed to operate, so that it is provided on the back surface of the platen cover 4. The white rubber paper feed belt 6 running in the direction of the arrow B conveys the originals 3 placed on the original placing table 2 one by one from the upper side onto the original placing glass 5 each time copying is completed. It is like this. In this case, in response to the copy, the copy paper 8 or 10 housed in the copy paper cassette 7 or 11 is conveyed to the inside of the copying machine 1 and the surface of the manuscript 3 or characters or patterns are transferred. It is sent to the copy tray 9.
In the figure, reference numeral 17 is a storage tray for the originals 3 that have been copied. The paper feed belt 6 of the copying machine 1 is
As shown in FIG. 2, the original 3 is conveyed by traveling by rotation of two drive rollers 12. The paper feed belt 6 requires a frictional force to convey the original document 3 and requires a document cover property for discharging the original document 3. However, the paper feed belt 6 is charged with static electricity due to the frictional force necessary for delivering the above-mentioned document 3, and as a result, the document 3 as a conveyed product is attracted to the paper feed belt 6 and becomes a document. There is a problem such as a decrease in the property. Therefore, a terpolymer of ethylene-propylene-diene rubber (hereinafter abbreviated as "EPDM") and epichlorohydrin-ethylene oxide-allyl glycidyl ether is conventionally used as a rubber composition for forming the paper feed belt 6. (Hereinafter referred to as “ECO”) is used as a main component.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記ゴ
ム組成物において、ＥＰＤＭの含有割合が多いと、これ
を用いて形成された紙送りベルト６は、電気抵抗が高
く、静電気が帯電し原稿３が帯電吸着して搬送不良が生
じるという問題を有している。また、ＥＣＯの含有割合
が多いと、電気抵抗は低く、帯電吸着が抑制され、原稿
３の搬送性が良好であるが、上記ＥＣＯは下記の一般式
（１）で表される繰り返し単位を有しており、塩素原子
を含有するために、紙送りベルト６成形時に成形用金型
の腐蝕が発生するという問題が生じる。However, in the above rubber composition, when the EPDM content is high, the paper feed belt 6 formed by using the EPDM has a high electric resistance and is charged with static electricity, so that the original 3 is not printed. It has a problem that it is electrostatically adsorbed to cause conveyance failure. Further, when the content ratio of ECO is high, electric resistance is low, charge adsorption is suppressed, and the transportability of the original 3 is good, but the ECO has a repeating unit represented by the following general formula (1). However, since the chlorine atom is contained, there is a problem that the molding die is corroded when the paper feed belt 6 is molded.
【０００４】[0004]
【化１】 [Chemical 1]
【０００５】この発明は、このような事情に鑑みなされ
たもので、電気抵抗が小さく紙送り性に優れ、しかも成
形時の金型腐蝕も生じない複写機用紙送りベルトの提供
をその目的とする。The present invention has been made in view of the above circumstances, and an object thereof is to provide a paper feed belt for a copying machine which has a small electric resistance, is excellent in paper feedability, and does not cause mold corrosion during molding.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
め、この発明の複写機用紙送りベルトは、プロピレンオ
キシドゴム（以下「ＰＯＲ」と略す）およびＥＰＤＭの
少なくともＰＯＲを主成分とするゴム組成物によってベ
ルト状に形成されているという構成をとる。In order to achieve the above object, a paper feed belt of a copying machine of the present invention is a rubber composition containing propylene oxide rubber (hereinafter abbreviated as "POR") and EPDM as a main component. Is formed into a belt shape.
【０００７】[0007]
【作用】すなわち、本発明者らは、優れた帯電防止効果
を有し、しかも成形時に金型の腐蝕の生じない信頼性に
優れた複写機用紙送りベルトを得るために一連の研究を
重ねた。その結果、金型腐蝕の原因となる塩素原子を有
するＥＣＯを用いずに、ＰＯＲを用い、これを単独でも
しくはこれとＥＰＤＭとを組み合わせて用いると、所期
の目的を達成することを見出しこの発明に到達した。That is, the inventors of the present invention have conducted a series of researches to obtain a paper feed belt for a copying machine which has an excellent antistatic effect and is highly reliable without corrosion of the mold during molding. As a result, it was found that the intended purpose can be achieved by using POR alone or in combination with EPDM without using ECO having a chlorine atom that causes mold corrosion. The invention was reached.
【０００８】この発明の複写機用紙送りベルトは、ＰＯ
ＲおよびＥＰＤＭの少なくともＰＯＲを主成分とするゴ
ム組成物を用いて所望のベルト形状に形成することによ
り作製される。The paper feed belt of the copying machine of the present invention is a PO
It is produced by forming a desired belt shape using a rubber composition containing at least POR as a main component of R and EPDM.
【０００９】上記ＰＯＲは、例えば、下記の一般式
（２）で表される繰り返し単位を有するものである。The POR has, for example, a repeating unit represented by the following general formula (2).
【００１０】[0010]
【化２】 [Chemical 2]
【００１１】すなわち、上記一般式（２）中の極性基
（−ＣＨ2 −ＯＣＨ2 ＣＨ＝ＣＨ2 ）の存在により電気
抵抗値が小さくなり、その結果、静電気の帯電が防止さ
れる。しかも、金型腐蝕の原因となる塩素原子が存在し
ないため、成形時に金型腐蝕が生じない。[0011] That is, the electrical resistance due to the presence of polar groups in the general formula (2) (-CH 2 -OCH 2 CH = CH 2) is reduced, so that the electrostatic charging is prevented. Moreover, since there are no chlorine atoms that cause mold corrosion, mold corrosion does not occur during molding.
【００１２】上記ＥＰＤＭとしては、特に限定するもの
ではなく従来公知のものが用いられる。The EPDM is not particularly limited, and a conventionally known one can be used.
【００１３】上記ＰＯＲは単独で、もくしはＥＰＤＭと
併せて用いられる。上記ＰＯＲ（Ｘ）とＥＰＤＭ（Ｙ）
とを併用する場合、両者の配合割合は、重量比でＸ／Ｙ
＝６０／４０〜２０／８０の範囲に設定することが好ま
しい。すなわち、ＰＯＲ（Ｘ）が６０を超える（Ｙが４
０未満）と、物性の引張強度が小さく伸びが大きくな
り、ＰＯＲ（Ｘ）が２０未満（Ｙが８０を超える）で
は、電気抵抗が大きくなる傾向がみられるからである。The above POR is used alone and in combination with EPDM. Above POR (X) and EPDM (Y)
When both and are used together, the mixing ratio of both is X / Y by weight ratio.
= 60/40 to 20/80 is preferably set. That is, POR (X) exceeds 60 (Y is 4
If it is less than 0), the tensile strength of the physical properties is small and the elongation is large, and if the POR (X) is less than 20 (Y exceeds 80), the electric resistance tends to increase.
【００１４】上記主成分とするゴム材料の加硫剤として
は、イオウ系加硫剤が用いられる。すなわち、上記イオ
ウ系加硫剤を用い、イオウ加硫を行うことにより、緩や
かに加硫が行われ、パーオキサイド加硫を行った場合の
ような急速な加硫による表面の硬化に伴い作業性が悪化
するという欠点が生じない。A sulfur-based vulcanizing agent is used as a vulcanizing agent for the rubber material containing the main component. That is, by using the above sulfur-based vulcanizing agent, sulfur vulcanization is performed, so that vulcanization is performed gently, and workability is accompanied by surface hardening due to rapid vulcanization as in the case of peroxide vulcanization Does not cause the drawback that it deteriorates.
【００１５】さらに、上記ゴム組成物には、上記各成分
以外に、充填剤，加硫促進剤，軟化剤，老化防止剤，加
工助剤等その他の添加剤が適宜に配合される。Further, in addition to the above-mentioned components, other additives such as a filler, a vulcanization accelerator, a softening agent, an antiaging agent, a processing aid and the like are appropriately blended in the rubber composition.
【００１６】この発明の複写機用紙送りベルトは、例え
ばつぎのようにして得られる。すなわち、上記ＰＯＲお
よびＥＰＤＭの少なくともＰＯＲと、イオウ系加硫剤
と、その他の添加剤を所定の割合で配合し混練すること
によりゴム組成物を作製する。ついで、上記ゴム組成物
を用い、成形用金型に充填して所定の加硫条件（例えば
１６０℃×３０分）より加硫を行い所望の形状の紙送り
ベルトが得られる。The paper feed belt of the copying machine of the present invention is obtained, for example, as follows. That is, at least POR of the above POR and EPDM, a sulfur-based vulcanizing agent, and other additives are mixed in a predetermined ratio and kneaded to prepare a rubber composition. Next, the above rubber composition is used and filled in a molding die and vulcanized under predetermined vulcanization conditions (for example, 160 ° C. × 30 minutes) to obtain a paper feed belt having a desired shape.
【００１７】[0017]
【発明の効果】以上のように、この発明の複写機用紙送
りベルトは、その形成材料が、ＰＯＲおよびＥＰＤＭの
少なくともＰＯＲを主成分とするゴム組成物を用いて得
られるため、電気抵抗値が低く、しかも成形時に金型の
腐蝕が生じない。また、高い強度を有するものである。
したがって、この発明の複写機用紙送りベルトを用いる
と、複写機の帯電吸着現象が防止され、良好な紙送り性
が実現する。As described above, the paper feed belt of the copying machine of the present invention has a low electric resistance value because the forming material thereof is obtained by using the rubber composition containing at least POR as the main component of POR and EPDM. Moreover, the mold does not corrode during molding. It also has high strength.
Therefore, when the paper feed belt of the copying machine of the present invention is used, the electrostatic attraction phenomenon of the copying machine is prevented and good paper feeding performance is realized.
【００１８】つぎに、実施例について比較例と併せて説
明する。Next, examples will be described together with comparative examples.
【００１９】[0019]
【実施例１〜４、比較例１〜３】下記の表１および表２
示す原料を同表に示す割合で配合し、混練することによ
ってゴム組成物を得た。ついで、所定形状の成形用金型
を用い、これに上記ゴム組成物を充填し、イオウ加硫
（加硫条件：１６０℃×３０分）することにより複写機
用紙送りベルトを得た。Examples 1 to 4 and Comparative Examples 1 to 3 Tables 1 and 2 below.
A rubber composition was obtained by mixing the raw materials shown in the table in the proportions shown in the table and kneading. Then, using a molding die having a predetermined shape, the rubber composition was filled into the molding die, and sulfur vulcanization (vulcanization condition: 160 ° C. × 30 minutes) was performed to obtain a paper feed belt for a copying machine.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【表２】 [Table 2]
【００２２】このようして得られた各実施例品および比
較例品の破断強度，破断伸びおよび表面電気抵抗値（２
３℃×５５％ＲＨ）を測定した。また、上記実施例およ
び比較例のゴム組成物の金型腐蝕の発生の有無を調べ
た。これらの結果を下記の表３〜表５に示した。The breaking strength, breaking elongation and surface electric resistance value (2
3 ° C. × 55% RH) was measured. Further, the rubber compositions of the above Examples and Comparative Examples were examined for the presence or absence of mold corrosion. The results are shown in Tables 3 to 5 below.
【００２３】上記破断強度および破断伸びは、ＪＩＳ
Ｋ ６３０１に基づいて測定した。The above-mentioned breaking strength and breaking elongation are in accordance with JIS.
It was measured based on K 6301.
【００２４】また、上記表面電気抵抗値は、２３℃×５
５％ＲＨの条件下で、ＪＩＳ Ｋ６９１１に準じて測定
した。The surface electric resistance value is 23 ° C. × 5.
It was measured according to JIS K6911 under the condition of 5% RH.
【００２５】さらに、上記金型腐蝕の発生の有無は、実
際に成形用金型にゴム組成物を充填し、ベルト状に成形
する工程を繰り返して、１００ショット目で金型に腐蝕
が生じたものを×、腐蝕が生じなかったものを○として
示した。Further, regarding the presence or absence of the corrosion of the mold, the process of actually filling the molding mold with the rubber composition and molding it into a belt shape was repeated, and the mold was corroded at the 100th shot. The ones are shown as x, and those not corroded are shown as o.
【００２６】[0026]
【表３】 [Table 3]
【００２７】[0027]
【表４】 [Table 4]
【００２８】[0028]
【表５】 [Table 5]
【００２９】上記表３〜表５の結果から、比較例３品は
成形用金型の腐蝕は生じなかったが、表面の電気抵抗値
が非常に高く、紙送り性が不良であることがわかる。ま
た、比較例１，２品は成形用金型の腐蝕が生じ、しかも
表面電気抵抗値も高く、紙送り性が不良である。そし
て、いずれの比較例品も破断伸び値が低く、強度が劣っ
ていることがわかる。これに対して、実施例品は、全て
金型に腐蝕が生じず、しかも表面電気抵抗値が低い。こ
のことから、紙送り性が良好であることがわかる。さら
に、破断伸び値および破断強度の値も高く、強度的にも
優れていることがわかる。From the results shown in Tables 3 to 5, it can be seen that the product of Comparative Example 3 did not cause corrosion of the molding die, but had a very high surface electric resistance value and poor paper feeding property. . Further, in Comparative Examples 1 and 2, the molding die is corroded, the surface electric resistance value is high, and the paper feeding property is poor. And it turns out that all the comparative examples have low elongation at break and poor strength. On the other hand, in all of the example products, the mold did not corrode and the surface electric resistance value was low. From this, it is understood that the paper feeding property is good. Further, the breaking elongation value and the breaking strength value are also high, which shows that the strength is also excellent.
【図１】複写機の斜視図である。FIG. 1 is a perspective view of a copying machine.
【図２】上記複写機に用いられる紙送りベルト部分の正
面図である。FIG. 2 is a front view of a paper feed belt portion used in the copying machine.
【手続補正書】[Procedure amendment]
【提出日】平成４年１０月３０日[Submission date] October 30, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２１[Correction target item name] 0021
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００２１】[0021]
【表２】 [Table 2]
Claims (1)
−プロピレン−ジエンゴムの少なくともプロピレンオキ
シドゴムを主成分とするゴム組成物によってベルト状に
形成されていることを特徴とする複写機用紙送りベル
ト。1. A paper feed belt for a copying machine, which is formed in a belt shape from a rubber composition containing propylene oxide rubber and ethylene-propylene-diene rubber as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25848692A JPH06110275A (en) | 1992-09-28 | 1992-09-28 | Paper feed belt for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25848692A JPH06110275A (en) | 1992-09-28 | 1992-09-28 | Paper feed belt for copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06110275A true JPH06110275A (en) | 1994-04-22 |
Family
ID=17320882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25848692A Pending JPH06110275A (en) | 1992-09-28 | 1992-09-28 | Paper feed belt for copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06110275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2774780A1 (en) * | 1998-02-09 | 1999-08-13 | Sumitomo Rubber Ind | Conducting non-linked continuous belt for electrophotographic equipment |
-
1992
- 1992-09-28 JP JP25848692A patent/JPH06110275A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2774780A1 (en) * | 1998-02-09 | 1999-08-13 | Sumitomo Rubber Ind | Conducting non-linked continuous belt for electrophotographic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100851697B1 (en) | Polymer composition for conductive roller, polymer composition, conductive roller and conductive belt | |
| JP2006343723A (en) | Conductive rubber roller | |
| KR20150135371A (en) | Crosslinkable rubber composition for conductive rolls, rubber crosslinked material for conductive rolls, and conductive roll | |
| JPH0863014A (en) | Conductive roller | |
| KR102125397B1 (en) | Method for producing rubber composition | |
| JPH06110275A (en) | Paper feed belt for copying machine | |
| JP4142187B2 (en) | Transfer belt | |
| JP3237214B2 (en) | Copier paper feed belt | |
| CN104945653B (en) | Toner supplying roller and image forming apparatus | |
| JP2727043B2 (en) | Rubber composition for white belt | |
| JP2003213028A (en) | Polymer composition for electroconductive roller, and electroconductive roller by using the same composition | |
| JP2727042B2 (en) | Copier paper feed belt | |
| JPH11181311A (en) | Conductive polymer composition and conductive component using it | |
| JP4402332B2 (en) | Conductive roll | |
| JPH072870B2 (en) | Endless elastic belt | |
| CN105980937A (en) | Toner supply roller and image formation device | |
| JPH0971698A (en) | Rubber composition for white belt and white belt for copier produced by using the composition | |
| JPH1087892A (en) | Conductive rubber composition for electrophotographic apparatus and conductive roll | |
| JP4479880B2 (en) | Method for producing semiconductive rubber member | |
| JPH0971688A (en) | Rubber composition for white belt of copying machine and white belt for copying machine produced by using the composition | |
| JPH08169974A (en) | Production of conductive roller | |
| JPH06107876A (en) | Rubber composition for white belt | |
| JPH09222809A (en) | Conductive belt | |
| JPH0545494B2 (en) | ||
| JPH01226641A (en) | Elastic endless transport belt |