JPH02175538A - Endless elastic belt - Google Patents
Endless elastic beltInfo
- Publication number
- JPH02175538A JPH02175538A JP33050788A JP33050788A JPH02175538A JP H02175538 A JPH02175538 A JP H02175538A JP 33050788 A JP33050788 A JP 33050788A JP 33050788 A JP33050788 A JP 33050788A JP H02175538 A JPH02175538 A JP H02175538A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- elastic belt
- endless elastic
- belt
- epichlorohydrine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 36
- 239000005060 rubber Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims description 15
- 229920005558 epichlorohydrin rubber Polymers 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000945 filler Substances 0.000 abstract description 12
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035936 sexual power Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔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無
端弾性ベルトに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an endless elastic belt used in an automatic document feeder of a copying machine, etc.
複数枚の原稿を連続的に自動複写できる複写機として第
１図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類の無端
弾性ベルト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
枚づつ原稿台ガラス５上に搬送するようになっている。2. Description of the Related Art There is a copying machine shown in FIG. 1 that is capable of automatically and continuously copying a plurality of original documents. In other words, this copying machine 1
is the document stand 2 located at the upper end of one side of the main body.
, place a plurality of originals 3 in a stacked manner with the front side facing down, and rotate the original cover 4 around one edge in the direction of arrow A shown in the figure to place the originals 3 on the original glass 5. When the switch (not shown) is pressed in this state to activate the operation, the endless elastic belt 6 made of white rubber provided on the back side of the document table cover 4 runs in the direction of arrow B, and is placed on the document table 2. The placed original 3 is conveyed one by one onto the original platen glass 5 from the upper side each time copying is completed.
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１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の表面の文字や図柄等が
転写されてコピートレイ９に送り出される。このような
複写機１の上記無端弾性ベルト６は、第２図のように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。この無端弾性ベルト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無端弾性ベル
ト６に静電気が帯電するようになり、その結果、例えば
無端弾性ベルト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。In this case, in response to the above copying, the copy paper cassette 7 is
Alternatively, copy paper 8 or 10 stored in 11 is conveyed into the copying machine 1, characters, designs, etc. on the front surface of the original 3 are transferred, and sent to a copy tray 9. The endless elastic belt 6 of such a copying machine 1 has two parts as shown in FIG.
The document 3 is moved by the rotation of the drive rollers 12 and conveys the document 3. This endless elastic belt 6 is attached to the original 3
Frictional force is required to convey the document 3, and document separation property is required to eject the document 3. However, due to the frictional force necessary to deliver the document 3, the endless elastic belt 6 is charged with static electricity, and as a result, the document 3, which is the conveyed object, is attracted to the endless elastic belt 6, and the document is separated. Problems such as decreased sexual performance occur.
このため、従来から、無端弾性ベルト６を形成するだめ
に用いられるゴム組成物に、界面活性剤。For this reason, a surfactant has conventionally been added to the rubber composition used to form the endless elastic belt 6.
金属酸化物等の充填剤を配合することにより無端弾性ベ
ルト６に帯電防止性能を付与することが行われている
〔発明が解決しようとする問題点〕
しかしながら、上記金属酸化物を用いた場合、無端弾性
ヘルド６に充分な帯電防止効果を付与するためにはかな
りの量を配合しなければならず、その結果、帯電防止効
果が得られる代わりに無端弾性ベルトに必須の性能（弾
性、永久伸び）が損なわれることになり、さらに白色度
の高いものが得られにくいという問題を有している。ま
た、上記界面活性剤は、帯電防止効果の長期持続性、ブ
リードによるベルト表面のべたつき等の問題を有してい
る。Antistatic performance has been imparted to the endless elastic belt 6 by blending a filler such as a metal oxide [Problem to be solved by the invention] However, when the above-mentioned metal oxide is used, In order to impart a sufficient antistatic effect to the endless elastic heald 6, a considerable amount must be added. ), and furthermore, it is difficult to obtain a product with high whiteness. Further, the above-mentioned surfactants have problems such as long-term sustainability of the antistatic effect and stickiness of the belt surface due to bleeding.
この発明はこのような事情に鑑みなされたもので、高白
色度で、かつ必要なヘルド特性（弾性。This invention was made in view of these circumstances, and it provides high whiteness and the necessary held characteristics (elasticity).
永久伸び）を備え、しかも帯電防止効果の長期安定性等
に優れた信頼性の高い無端弾性ベルトの提供をその目的
とする。The purpose of the present invention is to provide a highly reliable endless elastic belt with excellent long-term stability in antistatic effect, as well as permanent elongation.
上記の目的を達成するため、この発明の無端弾性ヘルト
ハ、電気抵抗の高いゴムとエピクロルヒドリンゴムとを
主成分とするゴム組成物によって形成されているという
構成をとる。In order to achieve the above object, the endless elastic belt of the present invention is made of a rubber composition whose main components are rubber with high electrical resistance and epichlorohydrin rubber.
すなわち、本発明者らは、長期間安定した帯電防止効果
を有し、かつ高い白色度を有する信頼性の高い無端弾性
ベルトを得るための研究の過程で、従来のように主成分
となるゴム成分に界面活性剤や充填剤をかなりの量添加
し、ヘルドの白色度を保持しながら帯電防止効果を付与
するのではなく、上記充填剤等を多量に用いず、主成分
となるゴム成分の配合を変えることで上記性質を付与で
きないものかと着想し一連の研究を重ねた。その結果、
電気抵抗の高いゴムとエピクロルヒドリンゴムとを組み
合わせ、これを用いると所期の目的を達成しうろことを
見出しこの発明に到達した。That is, in the course of research to obtain a highly reliable endless elastic belt that has a stable antistatic effect over a long period of time and a high degree of whiteness, the present inventors discovered that rubber, which is the main component as in the past, Instead of adding a considerable amount of surfactants and fillers to the ingredients to maintain the whiteness of the heald and impart an antistatic effect, we do not use large amounts of the fillers, etc., and instead add a large amount of surfactants and fillers to the main rubber component. I came up with the idea that the above properties could be imparted by changing the formulation, and conducted a series of research. the result,
This invention was achieved by discovering that the desired objective could be achieved by combining rubber with high electrical resistance and epichlorohydrin rubber.
この発明の無端弾性ベルトを形成するのに用いるゴム組
成物は、電気抵抗の高いゴムとエピクロルヒドリンゴム
とを用いて得られるものである。The rubber composition used to form the endless elastic belt of the present invention is obtained using rubber with high electrical resistance and epichlorohydrin rubber.
上記比較的電気抵抗の高いゴムとは、１０３Ω・ｃ＋＋
＋程度以上の電気抵抗値を有するゴムのことであり、具
体的には、エチレン−プロピレンゴム（ＥＰＲ）、エチ
レン−プロピレン−ジエンゴム（ＥＰＤＭ）、天然ゴム
（ＮＲ）、スチレン−ブタジェンゴム（ＳＢＲ）、
イソブチレン−イソプロピレンゴム（ＩＩＲ）、ブタジ
ェンゴム（ＢＲ）等があげられる。The above-mentioned rubber with relatively high electrical resistance is 103Ω・c++
It refers to rubber having an electrical resistance value of + or higher, and specifically includes ethylene-propylene rubber (EPR), ethylene-propylene-diene rubber (EPDM), natural rubber (NR), styrene-butadiene rubber (SBR),
Examples include isobutylene-isopropylene rubber (IIR) and butadiene rubber (BR).
また、上記エピクロルヒドリンゴムとしては、エピクロ
ルヒドリン（ＥＣＨ）の単独重合体（ＣＨＲ）、ＥＣＨ
とエチレンオキサイド（ＥＯ）の共重合体（ＣＨＣ）、
ＥＣＵとアリルグリシジルエーテル（ＡＧＥ）の共重合
体、ＥＣＨとＥＯとＡＧＥの三元共重合体（ＥＣＯ）が
あげられる。In addition, as the epichlorohydrin rubber, epichlorohydrin (ECH) homopolymer (CHR), ECH
and ethylene oxide (EO) copolymer (CHC),
Examples include a copolymer of ECU and allyl glycidyl ether (AGE), and a terpolymer of ECH, EO, and AGE (ECO).
なお、より帯電防止効果の優れたものを得るには、上記
エピクロルヒドリンゴムのなかでもＥＯ含有量の多いも
のを用いるのが好ましい。In order to obtain a more excellent antistatic effect, it is preferable to use one having a high EO content among the above epichlorohydrin rubbers.
上記電気抵抗の高いゴムとエピクロルヒドリンゴムの混
合割合は、エピクロルヒドリンゴムが１０〜９０重量％
（以下「％」と略す）の範囲に設定するが好適であり、
より好適なのは３０〜８５％である。エピクロルヒドリ
ンゴムの混合割合が上記範囲より少ないと、帯電防止効
果が低下する傾向があり、一方上記範囲より多いと弾性
ベルト特性を損ねる傾向がある。The mixing ratio of the high electrical resistance rubber and epichlorohydrin rubber is 10 to 90% by weight of epichlorohydrin rubber.
(hereinafter abbreviated as "%") is suitable.
A more preferable range is 30 to 85%. If the mixing ratio of epichlorohydrin rubber is less than the above range, the antistatic effect will tend to decrease, while if it is more than the above range, the elastic belt properties will tend to be impaired.
また、この発明の無端弾性ベルトを得るために用いられ
るゴム組成物には、上記原料以外にも、必要に応じて従
来から用いられているその他の添加剤が含有される。In addition to the above-mentioned raw materials, the rubber composition used to obtain the endless elastic belt of the present invention may contain other conventionally used additives as necessary.
上記その他の添加剤としては、例えば、加硫剤、充填剤
、補強剤、軟化剤、老化防止剤、加工助剤等があげられ
る。Examples of the above-mentioned other additives include vulcanizing agents, fillers, reinforcing agents, softeners, anti-aging agents, and processing aids.
上記加硫剤としては、特に制限するものではな〈従来公
知のものを使用することができるが、パーオキサイド系
加硫剤を用いることが白色度の良好なものを得るのに好
適である。この場合、エピクロルヒドリンゴムとして共
加硫可能なＥＣＯを用いるのが好ましい。なお、上記加
硫剤の使用量は、ゴム組成物中のゴム成分（比較的電気
抵抗の高いゴムおよびエピクロルヒドリンゴムの合計１
００重量部）に対して、加硫剤が０．５〜１０重量部に
なるよう設定するのが好適である。The above-mentioned vulcanizing agent is not particularly limited; any conventionally known vulcanizing agent may be used, but it is preferable to use a peroxide-based vulcanizing agent in order to obtain a product with good whiteness. In this case, it is preferable to use covulcanizable ECO as the epichlorohydrin rubber. The amount of the above-mentioned vulcanizing agent used is based on the total amount of rubber components (rubber with relatively high electrical resistance and epichlorohydrin rubber) in the rubber composition.
00 parts by weight), it is preferable to set the amount of the vulcanizing agent to be 0.5 to 10 parts by weight.
上記充填剤としては、シリカ粉末、金属酸化物等があげ
られる。Examples of the filler include silica powder and metal oxides.
この発明の無端弾性ヘルドは、上記原料を用いて、例え
ばつぎのようにして製造することができる。すなわち、
まずエピクロルヒドリンゴムとある程度の量の充填剤を
予め配合し混練する（充填剤の分散しにくいものを混合
する場合には充填剤量を増加し高充填剤量にして混合す
る）。つぎに、上記混合物に電気抵抗の高いゴムと残り
の充填剤を添加し混合することによりゴム組成物を作製
する。そして、このようなゴム組成物を用いて従来公知
の方法により無端弾性ベルトを製造することができる。The endless elastic heald of the present invention can be manufactured using the above raw materials, for example, in the following manner. That is,
First, epichlorohydrin rubber and a certain amount of filler are mixed in advance and kneaded (if a filler that is difficult to disperse is mixed, the amount of filler is increased to make the mixture higher). Next, a rubber composition is prepared by adding and mixing a rubber having high electrical resistance and the remaining filler to the above mixture. Then, an endless elastic belt can be manufactured using such a rubber composition by a conventionally known method.
このようにして得られる無端弾性ベルトは、高白色度を
呈し、しかもブリードを生じず、長期間かつ環境変化に
対して安定した帯電防止効果を有している。The endless elastic belt thus obtained exhibits high whiteness, does not bleed, and has an antistatic effect that is stable over a long period of time and against environmental changes.
以上のように、この発明の無端弾性ベルトは、上記のよ
うな特殊な組成のゴム組成物を用いて得られるため、白
色度が高く、しかもブリードを伴わずに環境変化に対し
て安定した帯電防止効果を長期開存するものである。As described above, since the endless elastic belt of the present invention is obtained using a rubber composition with a special composition as described above, it has a high degree of whiteness and has a stable charging property against environmental changes without bleeding. It has a long-term patency with a preventive effect.
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.
〔実施例１〜４、比較例１〜３〕
下記の第１表に示す原料を同表に示す割合で用い、前記
製法にしたがって目的とするゴム組成物を得た。[Examples 1 to 4, Comparative Examples 1 to 3] Target rubber compositions were obtained according to the above manufacturing method using the raw materials shown in Table 1 below in the proportions shown in the same table.
（以下余白）
つぎに、上記のようにして得られたゴム組成物を用いて
、従来公知の方法により無端弾性ヘルドを作製した。そ
して、上記無端弾性ベルトについて、環境条件を変えて
二通り（通常の条件、７０°Ｃ×５％ＲＨを１週間）の
表面電気抵抗、摩擦係数、破断強度、破断伸びを測定し
、その結果を下記の第２表に示した。(Hereinafter, blank spaces) Next, using the rubber composition obtained as described above, an endless elastic heald was produced by a conventionally known method. Then, the surface electrical resistance, friction coefficient, breaking strength, and breaking elongation of the endless elastic belt were measured under two different environmental conditions (normal conditions, 70°C x 5% RH for one week), and the results were are shown in Table 2 below.
（以下余白）
第２表の結果から、実施測高は比較測高に比べて対紙に
おける摩擦係数はあまり差はないが対ガラスにおいては
摩擦係数は小さくなっている。また、実施測高の表面電
気抵抗が比較測高のに比べて通常の条件および高温等の
条件下の双方とも１桁以上低くなっている。このことか
ら、実施測高の帯電防止性能が優れていることがわかる
。また、実施測高は強度においても優れている・のがわ
かる。(Margins below) From the results in Table 2, it can be seen that there is not much difference in the coefficient of friction between the actual height measurement and the comparative height measurement against paper, but the coefficient of friction against glass is smaller. In addition, the surface electrical resistance of the actual height measurements is lower than that of the comparative height measurements by more than an order of magnitude under both normal conditions and conditions such as high temperatures. From this, it can be seen that the antistatic performance of the actual height measurement is excellent. It can also be seen that the actual height measurement is superior in terms of strength.
【図面の簡単な説明】
第１図は複写機の斜視図、第２図はそれに用いられる無
端弾性ベルト部分の正面図である。
１５・・・無端弾性ベルト
特許出願人 東海ゴム工業株式会社
代理人 弁理士 西 藤 征 彦BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a copying machine, and FIG. 2 is a front view of an endless elastic belt used therein. 15... Endless elastic belt patent applicant Tokai Rubber Industries Co., Ltd. Agent Patent attorney Yukihiko Nishifuji
Claims (1)
を主成分とするゴム組成物によつて形成されていること
を特徴とする無端弾性ベルト。(1) An endless elastic belt characterized by being formed from a rubber composition whose main components are rubber with high electrical resistance and epichlorohydrin rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63330507A JPH072870B2 (en) | 1988-12-26 | 1988-12-26 | Endless elastic belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63330507A JPH072870B2 (en) | 1988-12-26 | 1988-12-26 | Endless elastic belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02175538A true JPH02175538A (en) | 1990-07-06 |
| JPH072870B2 JPH072870B2 (en) | 1995-01-18 |
Family
ID=18233402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63330507A Expired - Fee Related JPH072870B2 (en) | 1988-12-26 | 1988-12-26 | Endless elastic belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072870B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018100165A (en) * | 2016-12-20 | 2018-06-28 | ヤマウチ株式会社 | Paper feeding belt |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52132056A (en) * | 1976-04-30 | 1977-11-05 | Toyoda Gosei Co Ltd | Oil-resistant rubber blend composition |
| JPS6096631A (en) * | 1983-10-31 | 1985-05-30 | Toyoda Gosei Co Ltd | Polyamide-rubber blend composition |
| JPS60141739A (en) * | 1983-12-29 | 1985-07-26 | Fujikura Rubber Ltd | Rubber composition |
-
1988
- 1988-12-26 JP JP63330507A patent/JPH072870B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52132056A (en) * | 1976-04-30 | 1977-11-05 | Toyoda Gosei Co Ltd | Oil-resistant rubber blend composition |
| JPS6096631A (en) * | 1983-10-31 | 1985-05-30 | Toyoda Gosei Co Ltd | Polyamide-rubber blend composition |
| JPS60141739A (en) * | 1983-12-29 | 1985-07-26 | Fujikura Rubber Ltd | Rubber composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018100165A (en) * | 2016-12-20 | 2018-06-28 | ヤマウチ株式会社 | Paper feeding belt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH072870B2 (en) | 1995-01-18 |
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