JPH04333456A - End face processed seamless belt - Google Patents
End face processed seamless beltInfo
- Publication number
- JPH04333456A JPH04333456A JP3105557A JP10555791A JPH04333456A JP H04333456 A JPH04333456 A JP H04333456A JP 3105557 A JP3105557 A JP 3105557A JP 10555791 A JP10555791 A JP 10555791A JP H04333456 A JPH04333456 A JP H04333456A
- Authority
- JP
- Japan
- Prior art keywords
- guide
- belt
- seamless belt
- base material
- tape
- 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
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 43
- 230000002265 prevention Effects 0.000 claims description 15
- -1 polyethylene terephthalate Polymers 0.000 abstract description 11
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 7
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 7
- 239000000806 elastomer Substances 0.000 abstract description 6
- 239000004642 Polyimide Substances 0.000 abstract description 5
- 229920001721 polyimide Polymers 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004831 Hot glue Substances 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 239000004945 silicone rubber Substances 0.000 description 5
- 235000019441 ethanol Nutrition 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000003522 acrylic cement Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 229920001780 ECTFE Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Advancing Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は端面を補強された、蛇行
防止付きシームレスベルトに関し、電子写真式複写機、
レーザープリンター等に使用される感光体基体用シーム
レスベルト、中間転写用シームレスベルト、搬送用シー
ムレスベルト、定着用シームレスベルト等に関するもの
である。[Field of Industrial Application] The present invention relates to a seamless belt with reinforced end faces and anti-meandering belt, and relates to an electrophotographic copying machine,
The present invention relates to seamless belts for photoconductor substrates, seamless belts for intermediate transfer, seamless belts for conveyance, seamless belts for fixing, etc. used in laser printers and the like.
【０００２】0002
【従来の技術】シームレスベルトを駆動させる複写装置
に於いて、シームレスベルトは、ベルトを駆動するロー
ラーの真円度、ローラーの真直度、ローラーの平行度等
の不均一が原因でベルトの幅方向に蛇行するくせがある
。[Prior Art] In a copying machine that drives a seamless belt, the seamless belt has problems in the width direction of the belt due to non-uniformities such as the roundness of the rollers that drive the belt, the straightness of the rollers, the parallelism of the rollers, etc. It has a habit of meandering.
【０００３】ベルトが蛇行すると、画像ズレ、画像ムラ
が発生すると共に、ベルトの両端部に繰り返し応力がか
かる為、短時間の使用でベルトの端面にクラックが入り
、時間の経過と共にクラックが進展しついにはベルトが
破断し、ベルトの取り替えが必要となる。[0003] When the belt meanderes, image shifts and unevenness occur, and stress is repeatedly applied to both ends of the belt, so cracks appear on the end faces of the belt after a short period of use, and the cracks develop over time. Eventually, the belt will break and will need to be replaced.
【０００４】このベルトの蛇行を防止するために、駆動
ロールにフランジを配設したり（特開昭５８−１００１
４５号）、ロールの平行度を変更させたり（特開昭５９
−２０３０３６号）、ホットメルト接着剤あるいは感圧
性接着剤でベルトの両端にガイドを接着する（特開昭５
９−２３０９５０号、特開昭６２−５０８７３号）等の
多数の提案が出されている。[0004] In order to prevent this belt from meandering, a flange is provided on the drive roll (as disclosed in Japanese Patent Laid-Open No. 58-1001).
No. 45), changing the parallelism of the rolls (Japanese Patent Laid-Open No. 59
-203036), guides are glued to both ends of the belt with hot melt adhesive or pressure sensitive adhesive (Japanese Patent Laid-Open No. 5
A large number of proposals have been made, such as No. 9-230950 and Japanese Unexamined Patent Publication No. 62-50873.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前記フ
ランジを配設する方法の場合には、ベルトの大きな蛇行
の際、フランジ部にベルトが乗り上げてしまいベルトが
破損してしまうという欠点を有している。[Problems to be Solved by the Invention] However, in the case of the method of arranging the flanges, there is a drawback that when the belt meanderes a lot, the belt rides on the flange portion and the belt is damaged. There is.
【０００６】ロールの平行度を変更する方法の場合には
、ベルトの蛇行量をセンサーにより測定し、その測定量
に対応して駆動ロールの角度を変更させなければならな
いため、装置の構造が複雑になるばかりでなく装置も大
きくなりコストがアップしてしまう。[0006] In the case of the method of changing the parallelism of the rolls, the amount of meandering of the belt must be measured by a sensor and the angle of the drive roll must be changed in accordance with the measured amount, so the structure of the device is complicated. Not only that, but the equipment also becomes larger and the cost increases.
【０００７】一方、ガイドをベルトに接着する方法は構
造的にもコスト的にも前２者の方法よりも有利で有る。
このホットメルト接着剤でガイドを作成する方法では、
１８０〜２００℃に溶融したホットメルト接着剤をベル
トに直接塗布してガイドを作る。しかし、現在使用され
ているプラスチック系ベルト基材はポリカーボネイト、
ポリエチレンテレフタレート等の軟化点が約１９０〜２
１０℃の樹脂のため、その溶融した温度によりベルト基
材が変形し、画像ズレ、画像ムラ等の原因となる問題点
を有している。On the other hand, the method of gluing the guide to the belt is more advantageous than the former two methods in terms of structure and cost. In this method of making guides with hot melt adhesive,
A guide is made by applying hot melt adhesive melted at 180-200°C directly to the belt. However, the plastic belt base materials currently used are polycarbonate,
The softening point of polyethylene terephthalate, etc. is approximately 190-2
Since the temperature of the resin is 10° C., the belt base material is deformed due to the melting temperature, which causes problems such as image shift and image unevenness.
【０００８】更に、溶融したホットメルト接着剤は粘度
が低いため、賦形されたガイドが冷却固化する前に変形
し目的の形状になりにくい為、結果としてベルトが蛇行
するという問題点を有している。Furthermore, since the molten hot-melt adhesive has a low viscosity, the shaped guide deforms before being cooled and solidified, making it difficult to take the desired shape, resulting in the problem of the belt meandering. ing.
【０００９】ガイドをホットメルト接着剤に代えて感圧
性接着剤で接着して作成する方法は、ガイドの幅が数ｍ
ｍと狭いため、ガイドのベルトへの接着強度不十分とな
り、ガイドの耐久性に問題を有する。[0009] The method of creating a guide by adhering it with a pressure-sensitive adhesive instead of a hot melt adhesive is a method in which the width of the guide is several meters.
Since the width is as narrow as m, the adhesion strength of the guide to the belt is insufficient, which poses a problem in the durability of the guide.
【００１０】本発明者らは、上記のような問題点を解決
するために、先に、エラストマーから成るガイドが接着
して有るテープをシームレスベルトの基材の両端部に接
着することにより、従来に比較して大幅に耐久性が改良
された蛇行防止用ガイド付きシームレスベルトが得られ
ることを見いだしたが、しかしながら、電子写真式複写
機等の消耗品の中では、いまだ比較的頻繁に交換を必要
とする消耗品の域を出ることはできなかった。[0010] In order to solve the above-mentioned problems, the present inventors first adhered tapes to which guides made of elastomer were adhered to both ends of the base material of a seamless belt. However, among the consumables of electrophotographic copiers, etc., it is still necessary to replace them relatively frequently. It was not possible to go beyond the level of necessary consumables.
【００１１】本発明の目的は、上記のような問題点を解
決しようとするものである。すなわち、ベルトの耐久性
が十分な端面処理蛇行防止用ガイド付きシームレスベル
トを提供することにある。[0011] An object of the present invention is to solve the above-mentioned problems. That is, it is an object of the present invention to provide a seamless belt with an end face treatment meandering prevention guide that has sufficient belt durability.
【００１２】0012
【課題を解決するための手段】（発明の概要）本発明者
等らは、従来のかかる問題点を解決すべく鋭意検討した
結果、シームレスベルト基材の両端部の補強テープが二
重に成った部分に蛇行防止用ガイドの継ぎ目部を配設す
ることにより耐久性が十分な端面処理蛇行防止用ガイド
付きシームレスベルトが得られることを見いだし、本発
明に到ったものである。[Means for Solving the Problems] (Summary of the Invention) As a result of intensive studies to solve the conventional problems, the present inventors discovered that the reinforcing tapes at both ends of the seamless belt base material are double-layered. The inventors have discovered that a seamless belt with an edge-treated meandering prevention guide having sufficient durability can be obtained by arranging a joint portion of the meandering prevention guide at the end face treatment, and has thus arrived at the present invention.
【００１３】すなわち、本発明の第１は、シームレスベ
ルト基材の両端部の一方の面に補強テープを、他方の面
に蛇行防止用ガイドを設けた端面処理蛇行防止用ガイド
付きシームレスベルトは、シームレスベルト基材の両端
部の補強テープが二重となった部分に蛇行防止用ガイド
の継ぎ目部を配設したことを特徴とする耐久性の優れた
端面処理シームレスベルトを提供するものである。That is, the first aspect of the present invention is a seamless belt with an edge-treated meandering prevention guide, in which a reinforcing tape is provided on one side of both ends of a seamless belt base material, and a meandering prevention guide is provided on the other side. To provide an edge-treated seamless belt with excellent durability, characterized in that a joint part of a meandering prevention guide is provided at a portion where reinforcing tapes are doubled at both ends of a seamless belt base material.
【００１４】本発明の第２は、前記第１の発明において
、シームレスベルト基材の両端部の補強テープが二重に
なった部分を引張弾性率が５，０００ｋｇ／ｃｍ２ 以
下のフッ素樹脂補強テープで更に補強することを特徴と
する耐久性の優れた端面処理補強シームレスベルトを提
供するものである。[0014] The second aspect of the present invention is that in the first aspect, the portion where the reinforcing tapes at both ends of the seamless belt base material are doubled is covered with a fluororesin reinforcing tape having a tensile modulus of 5,000 kg/cm2 or less. The purpose of the present invention is to provide an edge-treated reinforced seamless belt with excellent durability, which is further reinforced with .
【００１５】（発明の具体的説明）以下、図面を用いて
説明する。図３は複写機の転写の部分の駆動部を示す斜
視図であって、図中、１は駆動ロール、２は従動ロール
、３はシームレスベルト、４はガイド用テープ、５はガ
イド、６は補強テープである。モータ（図示されていな
い。）が駆動すると、１の駆動ロールが回転し、シーム
レスベルト３は移動し、従動ロール２も回転する。シー
ムレスベルト３の基材の両端部は補強テープ６，６′で
補強されている。(Specific description of the invention) The invention will be explained below with reference to the drawings. FIG. 3 is a perspective view showing the drive unit of the transfer part of the copying machine, and in the figure, 1 is a drive roll, 2 is a driven roll, 3 is a seamless belt, 4 is a guide tape, 5 is a guide, and 6 is a It is a reinforcing tape. When a motor (not shown) is driven, one driving roll rotates, the seamless belt 3 moves, and the driven roll 2 also rotates. Both ends of the base material of the seamless belt 3 are reinforced with reinforcing tapes 6, 6'.
【００１６】図１は本発明のシームレスベルトの拡大断
面図で、シームレスベルト基材３，３′の表面の補強テ
ープ６，６′の重なり部分９はフッ素樹脂補強テープ９
で補強され、この補強テープの重なり部９は、ガイド５
，５′の継ぎ目部７の延長上に位置するように設ける。FIG. 1 is an enlarged sectional view of the seamless belt of the present invention, in which the overlapping portion 9 of the reinforcing tapes 6, 6' on the surfaces of the seamless belt base materials 3, 3' is the fluororesin reinforcing tape 9.
The overlapping portion 9 of this reinforcing tape is reinforced by the guide 5.
, 5' so as to be located on an extension of the joint portion 7 of the joints 7.
【００１７】（１）補強テープ
本発明のシームレスベルト基材３′の両端部を補強する
テープ６，６′の素材は、アルミ箔、延伸ポリエチレン
テレフタレート、延伸ポリプロピレン、ポリイミド等で
あるが、耐熱性、引張強度、電気絶縁性、環境性等より
延伸ポリエチレンテレフタレート、ポリイミドが望まし
い。(1) Reinforcing tape The material of the tapes 6, 6' reinforcing both ends of the seamless belt base material 3' of the present invention is aluminum foil, stretched polyethylene terephthalate, stretched polypropylene, polyimide, etc., but heat-resistant Stretched polyethylene terephthalate and polyimide are preferable in terms of tensile strength, electrical insulation, environmental friendliness, etc.
【００１８】ベルト基材３への補強テープ６，６′の接
着は、改めてテープへ接着剤を塗布してもよいが、作業
性、接着剤の厚みの均一性より、片面粘着タイプの粘着
テープを使用するのが望ましい。Adhesion of the reinforcing tapes 6, 6' to the belt base material 3 may be done by applying adhesive to the tape again, but from the viewpoint of workability and uniformity of adhesive thickness, it is preferable to use a single-sided adhesive tape. It is preferable to use
【００１９】シームレスベルト基材３′の両端部の補強
テープ６，６′は、補強テープが二重に成った部分に蛇
行防止用ガイドの継ぎ目部が一致するように配設する必
要がある。The reinforcing tapes 6, 6' at both ends of the seamless belt base material 3' must be arranged so that the joint of the meandering prevention guide coincides with the double reinforcing tape.
【００２０】補強テープの厚みは、ベルト端面の補強効
果と、装置のコンパクト性より１０〜２００μｍが望ま
しい。好ましくは２５〜１２５μｍである。テープ幅は
３〜２０ｍｍである。The thickness of the reinforcing tape is desirably 10 to 200 μm in view of the reinforcing effect of the belt end face and the compactness of the device. Preferably it is 25 to 125 μm. The tape width is 3 to 20 mm.
【００２１】シームレスベルト基材３′の両端部の補強
テープは、シームレスベルト３の表側でも裏側でも良い
。補強テープを表側に配設する場合には、ガイド５をベ
ルト３の裏側に配設し、反対の場合には、ガイドをベル
トの表側に配設する。どちらの場合にもシームレスベル
ト基材の両端部の補強テープは、補強テープが二重に成
った部分に蛇行防止用ガイドの継ぎ目部が一致するよう
に配設する。The reinforcing tapes at both ends of the seamless belt base material 3' may be placed on either the front side or the back side of the seamless belt 3. When the reinforcing tape is placed on the front side, the guide 5 is placed on the back side of the belt 3, and in the opposite case, the guide is placed on the front side of the belt. In either case, the reinforcing tapes at both ends of the seamless belt base material are arranged so that the seam of the meandering prevention guide coincides with the overlapped part of the reinforcing tape.
【００２２】（２）ガイド
本発明に使用するガイドの素材は、ＪＩＳ Ｋ７２１
５（Ａ型）による硬度が６０度以下、好ましくは５０度
以下のエラストマーであって、具体的には、ネオプレン
ゴム、ウレタンゴム、ブチルゴム、シリコーンゴム等が
使用できる。中でも基材への接着性、電気絶縁性、耐湿
・耐溶剤・耐オゾン・耐熱等の環境性等よりシリコーン
ゴムが良い。シリコーンゴムとしては、作業性、賦形性
、基材への損傷性等より一成分系常温硬化型が望ましく
、更に得られたガイドの寸法精度より、硬化前の賦形し
た状態で重力により変形しない程度の半流動性を有して
いることが好ましい。硬化前のシリコーンゴムを溶かし
得る溶剤としては、安全性の面、ベルト基材に損傷を与
えないことからアルコール系が望ましい。具体的にはエ
チルアルコール、イソプロパノールが使用される。(2) Guide The material of the guide used in the present invention is JIS K721.
5 (Type A) hardness of 60 degrees or less, preferably 50 degrees or less, and specifically, neoprene rubber, urethane rubber, butyl rubber, silicone rubber, etc. can be used. Among these, silicone rubber is better in terms of adhesion to base materials, electrical insulation, and environmental properties such as moisture resistance, solvent resistance, ozone resistance, and heat resistance. As for the silicone rubber, a one-component type that cures at room temperature is preferable from the viewpoint of workability, formability, damage to the base material, etc. Furthermore, due to the dimensional accuracy of the obtained guide, deformation due to gravity in the formed state before curing is desirable. It is preferable that the liquid has semi-fluidity to the extent that it does not. As the solvent capable of dissolving the silicone rubber before curing, alcohol-based solvents are preferred from the viewpoint of safety and from the standpoint of not damaging the belt base material. Specifically, ethyl alcohol and isopropanol are used.
【００２３】シームレスベルト３へのガイド５の接着方
法は、直接シームレスベルトへガイドを接着しても良い
し、前もってガイド用テープ４へガイド５を接着した後
、そのガイド付きガイド用テープ４をシームレスベルト
３へ接着しても良い。好ましくは、ガイドの形状寸法精
度、エラストマーより成るガイドの溶剤のベルト基材へ
の悪影響等より、ガイド用テープへガイドを接着した後
、ベルトへ接着するのが望ましい。The guide 5 can be attached to the seamless belt 3 by directly attaching the guide to the seamless belt, or by attaching the guide 5 to the guide tape 4 in advance and then seamlessly attaching the guide tape 4 with the guide. It may also be glued to the belt 3. Preferably, the guide is bonded to the guide tape and then to the belt in view of the shape and size accuracy of the guide, the adverse effect of the solvent of the elastomer guide on the belt base material, etc.
【００２４】ガイド用テープへのガイドの接着は、ガイ
ドの形状寸法精度、接着力より、前記のゴムの有してい
る接着力を利用するのが望ましい。すなわち接着剤は使
用しない。ガイド用テープへの接着力を高めるために、
ガイド用テープの接着面をアルコール、１，１，１−ト
リクロルエタン、アセトン等で処理するのが望ましい。In adhering the guide to the guide tape, it is preferable to use the adhesive force of the rubber, rather than the shape and size accuracy of the guide and the adhesive force. That is, no adhesive is used. In order to increase the adhesion to the guide tape,
It is desirable to treat the adhesive surface of the guide tape with alcohol, 1,1,1-trichloroethane, acetone, or the like.
【００２５】ガイドの形状は、蛇行防止効果より矩形が
望ましい。ガイドの幅は蛇行防止効果、耐久性、装置の
コンパクト性等より１〜１０ｍｍが望ましい。ガイドの
厚みも同様の理由により０．１〜２ｍｍが望ましい。[0025] The shape of the guide is preferably rectangular in view of the meandering prevention effect. The width of the guide is preferably 1 to 10 mm in view of the meandering prevention effect, durability, compactness of the device, etc. The thickness of the guide is also preferably 0.1 to 2 mm for the same reason.
【００２６】本発明に使用するガイドが接着して有るガ
イド用テープは、アルミニウム箔、延伸ポリエチレンテ
レフタレート、延伸ポリプロピレン、ポリイミド等であ
るが、耐熱性、引張強度、電気絶縁性、環境性等より延
伸ポリエチレンテレフタレート、ポリイミドが望ましい
。ベルトへのガイド用テープの接着は、改めてガイド用
テープへ接着剤を塗布してもよいが、作業性、接着剤の
厚みの均一性より、片面粘着タイプの粘着テープを使用
するのが望ましい。The guide tape to which the guide is adhered used in the present invention is made of aluminum foil, stretched polyethylene terephthalate, stretched polypropylene, polyimide, etc. Polyethylene terephthalate and polyimide are preferred. To adhere the guide tape to the belt, adhesive may be applied to the guide tape again, but from the viewpoint of workability and uniformity of adhesive thickness, it is preferable to use a single-sided adhesive tape.
【００２７】ガイド用テープ４とベルト基材補強用テー
プ６は同じ素材であっても異なった素材であっても良い
。The guide tape 4 and the belt base material reinforcing tape 6 may be made of the same material or different materials.
【００２８】ガイド用テープの厚みは、ベルト端面の補
強効果と、蛇行防止効果、装置のコンパクト性より１０
〜２００μｍが望ましい。好ましくは２５〜１２５μｍ
である。ガイド用テープ幅は３〜２０ｍｍである。[0028] The thickness of the guide tape is determined by 10 mm in consideration of the reinforcing effect of the belt end surface, the meandering prevention effect, and the compactness of the device.
~200 μm is desirable. Preferably 25-125 μm
It is. The width of the guide tape is 3 to 20 mm.
【００２９】ガイド用テープとガイドの厚み比率は、ガ
イドの蛇行防止効果より、ガイド用テープ／ガイド＝１
／２〜１／２０、好ましくは１／３〜１／１０である。[0029] The thickness ratio of the guide tape and the guide is such that the guide tape/guide = 1 due to the meandering prevention effect of the guide.
/2 to 1/20, preferably 1/3 to 1/10.
【００３０】ベルト３へのガイド５の接着は、ガイドの
蛇行防止効果、耐久性、補強効果等よりベルト基材３′
の両端６，６′に接着する必要がある。The adhesion of the guide 5 to the belt 3 is based on the belt base material 3' due to the meandering prevention effect, durability, reinforcing effect, etc. of the guide.
It is necessary to glue both ends 6, 6' of the.
【００３１】エラストマーから成るガイド５が接着して
有るガイド用テープ４をシームレスベルトの基材の左右
両端部に接着した後、ガイドの向かい合ったガイドの両
端面は、このガイドの両端部の耐久性、ガイドの両端部
に対応するベルト基材の耐久性より、ガイドと同種のエ
ラストマーで接着処理し、ガイドをシームレスベルト周
長全域にわたり連続体とし、ガイドの両端部に対応する
ベルト基材部への応力集中を防止することが望ましい。After the guide tape 4 to which the guide 5 made of elastomer is adhered is adhered to both left and right ends of the base material of the seamless belt, the opposite end surfaces of the guide are bonded to each other to ensure the durability of both ends of the guide. , Due to the durability of the belt base material corresponding to both ends of the guide, we adhesively treated the same type of elastomer as the guide, making the guide a continuous body over the entire circumference of the seamless belt, and attaching it to the belt base material corresponding to both ends of the guide. It is desirable to prevent stress concentration.
【００３２】（３）フッ素樹脂補強テープ本発明に使用
するフッ素樹脂補強テープは、耐熱性、引張弾性率、電
気絶縁性、環境性等よりフッ素系樹脂であるＰＴＦＥ，
ＰＦＡ，ＥＰＥ，ＦＥＰ，ＥＣＴＦＥ等が望ましく、最
も好ましいのは、ＰＴＦＥである。(3) Fluororesin reinforcing tape The fluororesin reinforcing tape used in the present invention is made of PTFE, which is a fluororesin, due to its heat resistance, tensile modulus, electrical insulation, environmental friendliness, etc.
PFA, EPE, FEP, ECTFE, etc. are preferable, and PTFE is most preferable.
【００３３】フッ素樹脂補強テープの厚みは、最も変形
率の大きい最外層あるいは最内層に使用するため薄いこ
とが重要である。すなわち、厚みは、２０〜１５０μｍ
、好ましくは２５〜１００μｍである。また、同じ理由
により低応力で伸び易いことが重要である。すなわち、
ＪＩＳ Ｋ７１１３で測定した引張弾性率が５，００
０ｋｇ／ｃｍ２ 以下、好ましくは４，０００ｋｇ／ｃ
ｍ２ 以下である。[0033] It is important that the fluororesin reinforcing tape is thin because it is used for the outermost layer or innermost layer, which has the highest deformation rate. That is, the thickness is 20 to 150 μm
, preferably 25 to 100 μm. Also, for the same reason, it is important that the material is easy to stretch with low stress. That is,
Tensile modulus measured by JIS K7113 is 5,00
0kg/cm2 or less, preferably 4,000kg/c
m2 or less.
【００３４】フッ素樹脂補強テープの幅は、シームレス
ベルト基材の両端部の補強テープと同じ幅でなければな
らない。フッ素樹脂補強テープ８による補強範囲は、少
なくとも補強テープ６，６′が二重に成った部分９をカ
バーする必要がある（図１参照）。The width of the fluororesin reinforcing tape must be the same as the reinforcing tapes at both ends of the seamless belt base material. The reinforcing range by the fluororesin reinforcing tape 8 needs to cover at least the portion 9 where the reinforcing tapes 6, 6' are doubled (see FIG. 1).
【００３５】フッ素樹脂補強テープのシームレスベルト
基材の両端部の補強テープへの接着は、改めてフッ素樹
脂補強テープへ接着剤を塗布してもよいが、作業性、接
着剤の厚みの均一性より、片面粘着タイプの粘着テープ
を使用するのが望ましい。[0035] For adhesion of the fluororesin reinforcing tape to the reinforcing tape at both ends of the seamless belt base material, adhesive may be applied to the fluororesin reinforcing tape again, but due to workability and uniformity of adhesive thickness, It is preferable to use single-sided adhesive tape.
【００３６】この引張弾性率の小さいフッ素樹脂補強テ
ープで補強することにより、引張弾性率が大きい為に、
剥離し易くなっている二重になった部分のシームレスベ
ルト基材３の両端部の補強テープ６，６′の剥離を阻止
するために、シームレスベルト基材の耐久性が飛躍的に
改善される。[0036] By reinforcing with this fluororesin reinforcing tape with a small tensile modulus, the tensile modulus is high, so
In order to prevent the reinforcing tapes 6, 6' at both ends of the seamless belt base material 3 from peeling off at the double portion where they are likely to peel off, the durability of the seamless belt base material is dramatically improved. .
【００３７】[0037]
【実施例】以下、具体的実施例により本発明に付いて更
に説明する。[Examples] The present invention will be further explained below with reference to specific examples.
【００３８】実施例１
厚さ５０μｍ、幅１０ｍｍ、片面にアクリル系接着剤を
５μｍの厚さに塗布してある二軸延伸ポリエチレンテレ
フタレートテープの未接着剤面をエチルアルコールで処
理した後、この面に、１成分アルコール溶剤タイプ半流
動性シリコーンゴムをノズルより押出し、幅５ｍｍ、高
さ０．６ｍｍの形状のガイドを作成し、２５℃，５５％
、７２時間放置し硬化させた。Example 1 After treating the non-adhesive side of a biaxially oriented polyethylene terephthalate tape with a thickness of 50 μm, a width of 10 mm, and one side coated with an acrylic adhesive to a thickness of 5 μm with ethyl alcohol, this side was A one-component alcohol solvent type semi-fluid silicone rubber was extruded through a nozzle to create a guide with a width of 5 mm and a height of 0.6 mm.
, and was left to cure for 72 hours.
【００３９】得られたガイドが接着してあるガイド用テ
ープを、厚み２００μｍ、直径２００ｍｍ、幅２００ｍ
ｍのポリカーボネートシームレスベルトの両端内側に接
着した。[0039] The guide tape to which the obtained guide is attached is 200 μm thick, 200 mm in diameter, and 200 m wide.
It was glued to the inside of both ends of a polycarbonate seamless belt.
【００４０】得られた内側にガイドが接着してあるシー
ムレスベルトの両端外側に、厚さ５０μｍ、幅１０ｍｍ
、片面にアクリル系接着剤５μｍを塗布してある二軸延
伸ポリエチレンテレフタレートテープを、二重に重なっ
た部分９が、図１に示すようにガイドの継ぎ目部７の延
長上にくるようにし、二重に重なった部分の長さ（ｌＯ
）が２０ｍｍに成るように接着した。[0040] On the outside of both ends of the seamless belt with the guide glued on the inside, a thickness of 50 μm and a width of 10 mm was placed.
, place a biaxially stretched polyethylene terephthalate tape coated with 5 μm of acrylic adhesive on one side so that the double overlapped part 9 is on the extension of the joint part 7 of the guide as shown in FIG. The length of the overlapping part (lO
) was glued so that it was 20 mm.
【００４１】２０ｍｍの二重に重なった部分を覆うよう
に厚さ５０μｍ、幅１０ｍｍ、片面にアクリル系接着剤
を１０μｍの厚さに塗布してある引張弾性率３，７００
ｋｇ／ｃｍ２ のフッ素樹脂補強ポリ（４フッ化エチレ
ン）テープを長さ３０ｍｍ接着した。[0041] Tensile elasticity modulus: 3,700, with a thickness of 50 μm and a width of 10 mm, with acrylic adhesive applied to a thickness of 10 μm on one side so as to cover the 20 mm double overlapped part.
kg/cm2 fluororesin-reinforced poly(tetrafluoroethylene) tape was adhered to a length of 30 mm.
【００４２】得られた端面処理補強シームレスベルトを
、両ロール径２５ｍｍ、ロール速度１００ｍｍ／秒、ベ
ルト張力２ｋｇ／ベルト全幅、２５℃，５５％の条件で
図３の装置にセットしテストしたところ連続７２時間運
転しても、ガイド、ベルト基材どちらも異常は見られず
、確実に蛇行を防止できた。[0042] The obtained end face treatment reinforced seamless belt was tested by setting it in the apparatus shown in Fig. 3 under the conditions of both roll diameters of 25 mm, roll speed of 100 mm/sec, belt tension of 2 kg/total belt width, 25° C., and 55%. Even after 72 hours of operation, no abnormality was observed in either the guide or the belt base material, and meandering could be reliably prevented.
【００４３】比較例１
図２に示すように、フッ素樹脂補強テープによる補強な
し、ガイドの継ぎ目部７が補強テープの二重に重なった
部分９の延長上にないこと以外は前記実施例１と同一と
したシームレスベルトを作成し、前記の装置にセットし
、前記と同じ条件でテストしたところ、４０時間でガイ
ドの継ぎ目部に対応した部分の補強テープの近傍のシー
ムレスベルトにクラックが発生した。Comparative Example 1 As shown in FIG. 2, the same as Example 1 was used, except that there was no reinforcement with the fluororesin reinforcing tape and the guide seam 7 was not on the extension of the double-overlapping portion 9 of the reinforcing tape. When an identical seamless belt was made, set in the above-mentioned apparatus, and tested under the same conditions as above, cracks occurred in the seamless belt near the reinforcing tape at the part corresponding to the joint of the guide after 40 hours.
【００４４】[0044]
【効果】本発明の端面処理シームレスベルトは、シーム
レスベルト基材の両端部の補強テープが二重に重なった
部分を、ガイドの継ぎ目部の延長上に設けたので、耐久
性に富む。[Effects] The edge-treated seamless belt of the present invention is highly durable because the double-overlapping portion of the reinforcing tape at both ends of the seamless belt base material is provided on an extension of the guide seam.
【図１】本発明の端面処理シームレスベルトの部分断面
図である。FIG. 1 is a partial cross-sectional view of an edge-treated seamless belt of the present invention.
【図２】本発明の端面処理シームレスベルトの部分断面
図である。FIG. 2 is a partial cross-sectional view of the edge-treated seamless belt of the present invention.
【図３】本発明の端面処理シームレスベルトの一部を切
り欠いた斜視図である。FIG. 3 is a partially cutaway perspective view of the edge-treated seamless belt of the present invention.
１ 駆動ロール ２ 従動ロール ３ シームレスベルト ４ ガイド用テープ ５ ガイド ６ 補強テープ ７ ガイドの継ぎ目 ８ フッ素系樹脂補強テープ ９ 補強テープの重なり部 1 Drive roll 2. Driven roll 3 Seamless belt 4 Guide tape 5. Guide 6 Reinforcement tape 7 Guide seam 8. Fluorine resin reinforcement tape 9 Overlapping part of reinforcing tape
Claims (2)
の面に補強テープを、他方の面に蛇行防止用ガイドを設
けた端面処理シームレスベルトにおいて、シームレスベ
ルト基材の両端部の補強テープが二重となった部分の延
長上に蛇行防止用ガイドの継ぎ目部を配設したことを特
徴とする端面処理シームレスベルト。Claim 1: In an end-treated seamless belt in which a reinforcing tape is provided on one side of both ends of a seamless belt base material and a meandering prevention guide is provided on the other side, the reinforcing tapes at both ends of the seamless belt base material are An edge-treated seamless belt characterized by having a joint part of a meandering prevention guide arranged on an extension of the overlapped part.
テープが二重に成った部分を引張弾性率が５，０００ｋ
ｇ／ｃｍ２ 以下のフッ素樹脂補強テープで更に補強す
ることを特徴とする請求項１記載の端面処理補強シーム
レスベルト。Claim 2: The tensile modulus of the double reinforcing tape at both ends of the seamless belt base material is 5,000k.
The edge-treated reinforced seamless belt according to claim 1, further reinforced with a fluororesin reinforcing tape of g/cm2 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3105557A JP2910304B2 (en) | 1991-05-10 | 1991-05-10 | End treatment seamless belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3105557A JP2910304B2 (en) | 1991-05-10 | 1991-05-10 | End treatment seamless belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04333456A true JPH04333456A (en) | 1992-11-20 |
| JP2910304B2 JP2910304B2 (en) | 1999-06-23 |
Family
ID=14410854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3105557A Expired - Fee Related JP2910304B2 (en) | 1991-05-10 | 1991-05-10 | End treatment seamless belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2910304B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10186701A (en) * | 1996-12-26 | 1998-07-14 | Mitsubishi Chem Corp | Beltlike photoreceptor |
| US6141522A (en) * | 1997-11-29 | 2000-10-31 | Fuji Xerox Co., Ltd. | Image forming apparatus using an endless belt |
| JP2008134615A (en) * | 2006-10-27 | 2008-06-12 | Fuji Xerox Co Ltd | Endless belt and image-forming device |
| JP2009015167A (en) * | 2007-07-06 | 2009-01-22 | Fuji Xerox Co Ltd | Belt carrier and image forming apparatus using the same |
| JP2010002659A (en) * | 2008-06-20 | 2010-01-07 | Fuji Xerox Co Ltd | Belt for image forming device, belt tension-laying device, and image forming device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182442C (en) | 1999-10-15 | 2004-12-29 | 株式会社理光 | Photoreceptor component and image forming device |
-
1991
- 1991-05-10 JP JP3105557A patent/JP2910304B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10186701A (en) * | 1996-12-26 | 1998-07-14 | Mitsubishi Chem Corp | Beltlike photoreceptor |
| US6141522A (en) * | 1997-11-29 | 2000-10-31 | Fuji Xerox Co., Ltd. | Image forming apparatus using an endless belt |
| JP2008134615A (en) * | 2006-10-27 | 2008-06-12 | Fuji Xerox Co Ltd | Endless belt and image-forming device |
| JP2009015167A (en) * | 2007-07-06 | 2009-01-22 | Fuji Xerox Co Ltd | Belt carrier and image forming apparatus using the same |
| JP2010002659A (en) * | 2008-06-20 | 2010-01-07 | Fuji Xerox Co Ltd | Belt for image forming device, belt tension-laying device, and image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2910304B2 (en) | 1999-06-23 |
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| LAPS | Cancellation because of no payment of annual fees |