JPS595250Y2 - Endless belt for copying machine - Google Patents
Endless belt for copying machineInfo
- Publication number
- JPS595250Y2 JPS595250Y2 JP1979149004U JP14900479U JPS595250Y2 JP S595250 Y2 JPS595250 Y2 JP S595250Y2 JP 1979149004 U JP1979149004 U JP 1979149004U JP 14900479 U JP14900479 U JP 14900479U JP S595250 Y2 JPS595250 Y2 JP S595250Y2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- base material
- copying machine
- endless belt
- conductive layer
- 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
Links
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Elimination Of Static Electricity (AREA)
Description
【考案の詳細な説明】
本考案は複写機内に組み込まれ、複写紙の搬送に用いら
れるエンドレスベルトの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an endless belt incorporated in a copying machine and used for conveying copy paper.
従来、複写機内に組み込まれ、複写紙の搬送に用いられ
ているベルトは、織布から戒る基材の外面にゴムシート
を固着したものであった。Conventionally, belts incorporated in copying machines and used for conveying copy paper have been made of a rubber sheet fixed to the outer surface of a base material made of woven fabric.
而して、複写機における紙搬送用ベルトは、通常トナ一
定着用ロールに近接して配置されるため、複写機の作動
中は常に該トナ一定着用ロールの発熱温度（約１５０〜
１８０℃）とほぼ同程度にまで加熱される。Since the paper conveying belt in a copying machine is usually placed close to the toner constant application roll, the heat generation temperature of the toner constant application roll is always maintained at about 150 to
180°C).
ところが、従来品は外層のゴムシートがこの加熱により
劣化し易く、寿命が短かいものであった。However, in conventional products, the rubber sheet of the outer layer easily deteriorates due to this heating, resulting in a short service life.
また、ゴムシートは導電性付与のためカーボンブラック
が配合せしめられているが、シート成形の点から配合量
を多くすることができないため、充分な導電性を付与さ
せることは困難であり、複写紙とベルトとの接触時に発
生する静電気に起因する紙づまりをしばしば引き起して
いた。In addition, rubber sheets are blended with carbon black to impart conductivity, but it is difficult to increase the blended amount from the viewpoint of sheet forming, so it is difficult to impart sufficient conductivity. Paper jams were often caused by static electricity generated when the paper came into contact with the belt.
本考案は上記従来品の有する問題を解決した複写機用エ
ンドレスベルトに係り、耐熱温度が２００℃以上の耐熱
性プラスチックから成るベルト基材の少なくとも外周面
に、金属箔から成る導電層が形成せしめられたものであ
る。The present invention relates to an endless belt for copying machines that solves the problems of the conventional products described above, in which a conductive layer made of metal foil is formed on at least the outer peripheral surface of the belt base material made of heat-resistant plastic with a heat-resistant temperature of 200°C or more. It is something that was given.
本考案においてベルト基材の材料として用いられる耐熱
温度２００℃以上の耐熱性プラスチックとは、２００℃
に加熱された場合にベルトとしての強度を有するプラス
チックであり、具体例としてはポリテトラフルオロエチ
レン、米国のデュポン社から商品名テフロンＰＦＡとし
て市販されているフッ素樹脂、ポリイミド等が挙げられ
る。In this invention, the heat-resistant plastic used as the material for the belt base material with a heat-resistant temperature of 200°C or higher means
It is a plastic that has the strength to be used as a belt when heated to a temperature of 50%, and specific examples thereof include polytetrafluoroethylene, a fluororesin commercially available from DuPont of the United States under the trade name Teflon PFA, and polyimide.
本考案においては、上記ベルト基材の外周面または内外
周周面にアルミ箔、銅箔等の金属箔が熱融着等により固
着され導電層が形成される。In the present invention, a conductive layer is formed by fixing metal foil such as aluminum foil or copper foil to the outer peripheral surface or inner and outer peripheral surfaces of the belt base material by heat fusion or the like.
この導電層は通常ベルト基材の所定面全面を被覆するよ
うに設けられるが、望むならばラセン状、帯状に形成す
ることもできる。This conductive layer is usually provided so as to cover the entire predetermined surface of the belt base material, but it can also be formed in a spiral or band shape if desired.
なお、本考案におけるベルト基材および導電層の厚さは
、前者を約５０〜５００μ、後者を約１０〜３０μ程度
とするのが実用的である。In addition, it is practical that the thickness of the belt base material and the conductive layer in the present invention is approximately 50 to 500 μm for the former and approximately 10 to 30 μm for the latter.
以下、図面により本考案の実例を説明する。Hereinafter, examples of the present invention will be explained with reference to the drawings.
第１図において１は耐熱性プラスチックフィルムから戊
るベルト基材であり、該基材１の外周面全面は金属箔か
ら成る導電層２で被覆されている。In FIG. 1, reference numeral 1 denotes a belt base material made of a heat-resistant plastic film, and the entire outer peripheral surface of the base material 1 is covered with a conductive layer 2 made of metal foil.
なお、ベルト基材１と導電層２は熱融着等によリ一体化
されている。Note that the belt base material 1 and the conductive layer 2 are integrated together by heat fusion or the like.
この際の熱融着はベルト基材が熱融着性を有する場合に
はその熱融着性を利用しベルト基材が熱融着性を有しな
い場合には、ベルト基材と導電層間にテトラフルオロエ
チレン−ヘキサフルオロプロピレン共重合体等の耐熱性
および熱融着性を兼備する材料を介在せしめるようにし
て両者を一体化する。In this case, if the belt base material has heat fusion properties, the heat fusion properties will be utilized, and if the belt base material does not have heat fusion properties, the heat fusion bond will be used between the belt base material and the conductive layer. The two are integrated by interposing a material having both heat resistance and heat fusion properties, such as a tetrafluoroethylene-hexafluoropropylene copolymer.
第２図は他の実例を示し、ベルト基材１の外周面には帯
状の導電層２が複数条形成されている。FIG. 2 shows another example, in which a plurality of strip-shaped conductive layers 2 are formed on the outer peripheral surface of the belt base material 1.
第３図は更に他の実例を示し、ベルト基材１の内周面お
よび外周面に各々導電層２が形成されている。FIG. 3 shows yet another example, in which a conductive layer 2 is formed on the inner circumferential surface and the outer circumferential surface of the belt base material 1, respectively.
このタイプの複写機用エンドレスベルトは、ベルト基材
１の内周面にも導電層が形成されており、ベルトと複写
紙との接触による静電気の発生を防止し得るのみならず
、ベルトとベルト駆動用ローラーとの接触による静電気
の発生をも防止し得るので、該ローラーがプラスチック
のような電気絶縁材料で構成されている複写機用に好適
なものである。In this type of endless belt for copying machines, a conductive layer is also formed on the inner circumferential surface of the belt base material 1, which not only prevents the generation of static electricity due to contact between the belt and the copy paper, but also prevents the occurrence of static electricity between the belt and the belt. Since it is possible to prevent the generation of static electricity due to contact with the drive roller, it is suitable for copying machines in which the roller is made of an electrically insulating material such as plastic.
本考案は上記のように構成されており、各層がいずれも
耐熱性の優れた材料から成るので長期間にわたり安定し
てその性能を発揮し得る。The present invention is constructed as described above, and since each layer is made of a material with excellent heat resistance, it can stably exhibit its performance over a long period of time.
また、電気の良導体である金属箔により導電層が形成さ
れているので静電気による紙づまりも防止できる等の効
果を有する。Furthermore, since the conductive layer is formed of metal foil, which is a good conductor of electricity, it has the effect of preventing paper jams caused by static electricity.
第１図は本考案に係る複写機用エンドレスベルトの実例
を示す側面図、第２図は他の実例を示す平面図、第３図
は更に他の実例を示し、ベルトを所定個所で切断した断
面図である。
１・・・・・・ベルト基材、２・・・・・・導電層。Fig. 1 is a side view showing an actual example of the endless belt for a copying machine according to the present invention, Fig. 2 is a plan view showing another example, and Fig. 3 is a further example, in which the belt is cut at predetermined points. FIG. 1... Belt base material, 2... Conductive layer.
Claims (1)
ベルト基材の少なくとも外周面に、金属箔から成る導電
層が形成せられた複写機用エンドレスベルト。An endless belt for a copying machine, in which a conductive layer made of metal foil is formed on at least the outer peripheral surface of a belt base material made of heat-resistant plastic with a heat resistance temperature of 200° C. or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979149004U JPS595250Y2 (en) | 1979-10-26 | 1979-10-26 | Endless belt for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979149004U JPS595250Y2 (en) | 1979-10-26 | 1979-10-26 | Endless belt for copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5666552U JPS5666552U (en) | 1981-06-03 |
| JPS595250Y2 true JPS595250Y2 (en) | 1984-02-16 |
Family
ID=29380108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979149004U Expired JPS595250Y2 (en) | 1979-10-26 | 1979-10-26 | Endless belt for copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595250Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4210260Y1 (en) * | 1964-07-13 | 1967-06-06 | ||
| JPS4411538Y1 (en) * | 1965-12-09 | 1969-05-14 | ||
| JPS504906U (en) * | 1973-05-16 | 1975-01-20 | ||
| JPS5015099U (en) * | 1973-06-05 | 1975-02-17 |
-
1979
- 1979-10-26 JP JP1979149004U patent/JPS595250Y2/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4210260Y1 (en) * | 1964-07-13 | 1967-06-06 | ||
| JPS4411538Y1 (en) * | 1965-12-09 | 1969-05-14 | ||
| JPS504906U (en) * | 1973-05-16 | 1975-01-20 | ||
| JPS5015099U (en) * | 1973-06-05 | 1975-02-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5666552U (en) | 1981-06-03 |
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