JPS5834436Y2 - Belt device for electronic copying machine - Google Patents
Belt device for electronic copying machineInfo
- Publication number
- JPS5834436Y2 JPS5834436Y2 JP1857273U JP1857273U JPS5834436Y2 JP S5834436 Y2 JPS5834436 Y2 JP S5834436Y2 JP 1857273 U JP1857273 U JP 1857273U JP 1857273 U JP1857273 U JP 1857273U JP S5834436 Y2 JPS5834436 Y2 JP S5834436Y2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- roller
- copying machine
- electronic copying
- belt device
- 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)
- Fixing For Electrophotography (AREA)
Description
【考案の詳細な説明】
本考案は、電子複写機用ベルト装置に、更に詳しく言え
ば、電子複写機に用いるフオームラバーのような柔軟な
ベルトの寄り防止装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a belt device for an electronic copying machine, and more particularly to a device for preventing shifting of a flexible belt such as foam rubber used in an electronic copying machine.
乾式電子複写機の定着装置にてオフセット防止のため定
着ローラにシリコン油等を塗布する場合に、又は乾式お
よび湿式電子複写機の転写ドラムに於ける残留トナーを
掃除する場合に、定着ローラ又は転写ドラムに損傷を与
えないように、フオームラバーのような柔軟なベルトを
用いることは周知である。When applying silicone oil, etc. to the fixing roller in the fixing device of a dry type electronic copying machine to prevent offset, or when cleaning residual toner on the transfer drum of a dry type and wet type electronic copying machine, the fixing roller or transfer It is well known to use flexible belts, such as foam rubber, to avoid damaging the drum.
このようなベルトは、その性質上一般に幅の広いベルト
であり、このような幅広ベルトの軸間距離を全幅に亙り
一定に保持することは非常に困難である。Such a belt is generally a wide belt due to its nature, and it is very difficult to maintain a constant distance between the axes of such a wide belt over the entire width.
更に、フオームラバーのような柔軟なベルトは復原力に
乏しく、ベルトの寄りが生ずると、これを元に戻す方法
がながった。Furthermore, flexible belts such as foam rubber have poor restoring force, and when the belt shifts, there is no way to return it to its original position.
本考案は、上述せるような柔軟ながっ幅広のベルトの寄
りを防止する新規な機構を提供せんとするものである。The present invention aims to provide a novel mechanism for preventing the above-mentioned flexible wide belt from shifting.
以下に添附の図面について、定着ローラにオフセット防
止用シリコン油を塗布する場合に本考案を適用した例を
説明する。An example in which the present invention is applied to the case where offset prevention silicone oil is applied to a fixing roller will be described below with reference to the attached drawings.
第１図に於て、シリコン樹脂より成るシリコンローラ１
および２が対をなして回転可能に配置され、その中ロー
ラ１の内部にはヒーター３が′内設されている。In Fig. 1, a silicone roller 1 made of silicone resin is shown.
and 2 are rotatably arranged in a pair, and a heater 3 is installed inside the roller 1.
ローラ１に近接して、シリコン油を充たしたタンク４が
配置されている。A tank 4 filled with silicone oil is arranged adjacent to the roller 1.
ローラ１，２とほぼ同じ大きさの幅を有するフオームラ
バーベルト５が、駆動ローラ６と従動ローラ７との間に
掛は渡され、更に駆動ローラ６の近傍に配置した圧接ロ
ーラ８，９により駆動ローラ６に圧接されるようになっ
ている。A foam rubber belt 5 having approximately the same width as the rollers 1 and 2 is passed between the driving roller 6 and the driven roller 7, and is further held by pressure rollers 8 and 9 disposed near the driving roller 6. It is adapted to be pressed against the drive roller 6.
図示のように、ベルト５の１部はタンク４内のシリコン
油に浸漬する位置にある。As shown, a portion of the belt 5 is in a position to be immersed in silicone oil within the tank 4.
１０は、乾式現像装置より送られて来た感光紙であり、
その感光面には未だ定着されないトナー像１１が形成さ
れ、矢印１２の方向に両定着ローラ１，２の間へ送られ
る。10 is the photosensitive paper sent from the dry developing device,
An unfixed toner image 11 is formed on the photosensitive surface and is sent between the fixing rollers 1 and 2 in the direction of an arrow 12.
第２図に於て、駆動ローラ６はその周面に多数の周溝６
Ａを具備し、圧接ローラ８および９により駆動ローラ６
の周面に圧接されるベルｌ−５は、変形して上記の周溝
６Ａ内へ喰込んでいる。In FIG. 2, the drive roller 6 has many circumferential grooves 6 on its circumferential surface.
A, and the drive roller 6 is driven by the pressure rollers 8 and 9.
The bell l-5, which is pressed against the circumferential surface of the bell l-5, is deformed and bites into the circumferential groove 6A.
それによって、ベルト５の軸方向へ横の寄りは防止され
る。This prevents the belt 5 from shifting laterally in the axial direction.
本考案による寄り防止装置を具備するベル１へ装置と、
ローラに溝を切らない従来のベルト装置とを用いて、ベ
ルトの寄りの比較試験を行った。A device for a bell 1 equipped with a deviation prevention device according to the present invention;
A comparative test of belt deviation was conducted using a conventional belt device that does not cut grooves on the rollers.
何れモ、フオームラバー製ベルトを用い、１０ユニット
の実験装置について試験を行った。In any case, a test was conducted on a 10 unit experimental device using a foam rubber belt.
従来のベルト装置では、早いものは４０〜５０枚の感光
紙複写回数で、そして遅いものでも約１０００枚の複写
回数で、ベルトの寄りが生じた。In the conventional belt device, the belt deviates when the number of copies of photosensitive paper is 40 to 50 at the earliest, and after about 1000 copies at the slowest.
これに対し、本考案によるベルト装置を用いた実験では
、早いもので約１０００枚の複写回数でベルＩ・の寄り
を生じたが、大部分のユニットでは１００００枚の複写
回数でもベルトの寄りは生じなかった。On the other hand, in experiments using the belt device according to the present invention, the belt I. shifted after approximately 1,000 copies were made, but in most units, the belt shifted even after 10,000 copies. It did not occur.
上述のように、本考案は簡単な構成でベルトの寄りを防
止することが出来る。As described above, the present invention can prevent the belt from shifting with a simple configuration.
従動ローラフにも溝を附すと、一層効果的である。It is even more effective if the driven roller rough is also grooved.
又、駆動ローラおよび従動ローラとベル１〜との間に滑
りが生ずると、ベル１〜寄りの原因となるので、各ロー
ラの表面にローレット加工、サンドブラスト等のアラシ
加工等を施すのもよい。Further, if slippage occurs between the driving roller and the driven roller and the bell 1~, it will cause the bell 1~ to shift, so it is also advisable to perform a roughening process such as knurling, sandblasting, etc. on the surface of each roller.
第１図は本考案の装置を具備するベルト装置を備えた複
写機の定着装置の説明図、第２図は第１図の■■−■■
線による断面図である。
５・・・・・・ベルＩ・、６・・・・・・駆動ローラ、
７・・・・・・従動ローラ、６Ａ・・・・・・周溝、８
，９・・・・・・圧接ローラ。FIG. 1 is an explanatory diagram of a fixing device of a copying machine equipped with a belt device equipped with the device of the present invention, and FIG. 2 is a diagram showing ■■-■■ of FIG.
FIG. 5... Bell I..., 6... Drive roller,
7...Followed roller, 6A...Peripheral groove, 8
, 9... Pressure roller.
Claims (1)
電子複写機用ベルト装置に於て、駆動ローラと従動ロー
ラの少くとも１つのローラの周面に周溝を設け、ベル１
〜をこの周面に圧接させるようにしたことを特徴とする
ベルトの寄り防止装置。In a belt device for an electronic copying machine in which a flexible belt is passed between a drive roller and a driven roller, a circumferential groove is provided on the circumferential surface of at least one of the drive roller and the driven roller, and a belt 1 is provided with a circumferential groove.
A belt deviation prevention device characterized in that ~ is brought into pressure contact with this circumferential surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1857273U JPS5834436Y2 (en) | 1973-02-14 | 1973-02-14 | Belt device for electronic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1857273U JPS5834436Y2 (en) | 1973-02-14 | 1973-02-14 | Belt device for electronic copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS49122848U JPS49122848U (en) | 1974-10-21 |
| JPS5834436Y2 true JPS5834436Y2 (en) | 1983-08-02 |
Family
ID=28104760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1857273U Expired JPS5834436Y2 (en) | 1973-02-14 | 1973-02-14 | Belt device for electronic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834436Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4488504A (en) * | 1983-01-26 | 1984-12-18 | Xerox Corporation | Release agent management system for a heat and pressure fuser apparatus |
-
1973
- 1973-02-14 JP JP1857273U patent/JPS5834436Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49122848U (en) | 1974-10-21 |
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