JPS60172063A - Oil supplying and applying roller - Google Patents

Oil supplying and applying roller

Info

Publication number
JPS60172063A
JPS60172063A JP2815484A JP2815484A JPS60172063A JP S60172063 A JPS60172063 A JP S60172063A JP 2815484 A JP2815484 A JP 2815484A JP 2815484 A JP2815484 A JP 2815484A JP S60172063 A JPS60172063 A JP S60172063A
Authority
JP
Japan
Prior art keywords
roller
oil
hollow
center
partition
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
Application number
JP2815484A
Other languages
Japanese (ja)
Inventor
Akira Koba
木場　章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP2815484A priority Critical patent/JPS60172063A/en
Publication of JPS60172063A publication Critical patent/JPS60172063A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
    • G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To apply uniformly oil to a fixing roller, and also to generate no uneven rotation by providing a partition in a hollow roller, and forming plural oil containing chambers in a point symmetrical position relation against the center of the roller. CONSTITUTION:As for an applying roller 20, a supporting shaft 26 is provided projectingly on both ends, and said roller can be driven to rotate against a fixing roller by supporting a supporting shaft 26 by a bearing (not shown in the figure). A hollow roller 21 consists of a metal having a good thermal conductivity, such as a sluminum, copper, etc., and in its inside, plural partitions 21a are provided in the center direction in a poiit symmetrical position relation against the center of the hollow roller 21. Also, on its center part, a cylindrical partition 21b is provided, and by the partition 21a, 21b, plural oil containing chambers 24 are formed along the outside periphery of the hollow roller 21. In this way, when the roller is driven to rotate, oil 22 oozes out separately from each containing chamber 24, and it is permeated and diffused uniformly to the whole area of an oil impregnating layer 25 without generating a difference in the upper part and the lower part of the applying roller 20.

Description

【発明の詳細な説明】 技術分野 本発明は、電子写真複写機等における定着口−ラヘオフ
セット防止排オイルを供給するオイル供給塗布ローラに
関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an oil supply application roller that supplies waste oil to prevent offset from a fixing port in an electrophotographic copying machine or the like.

従来技術 一般に、電子写真複写機等における定宿ローラは、第１
図に示されるように、内部に赤外線ランプからなる加熱
手段（３）を内蔵する加熱ローラ（］）および加圧ロー
ラ（２）からなり、トナー像を担持している複写紙ＣＰ
）を両ローラ間に挾み込んで、倶写紙ＣＰ）上のトナー
を溶融して複写紙（Ｉ））に定着させる。PRIOR ART In general, the fixed roller in an electrophotographic copying machine, etc.
As shown in the figure, the copy paper CP is made up of a heating roller (]) having a built-in heating means (3) consisting of an infrared lamp and a pressure roller (2), and carrying a toner image thereon.
) is sandwiched between both rollers to melt the toner on the copy paper CP) and fix it on the copy paper (I)).

このような加熱定着を行う際、複写紙（１つ上のトｆ′
へ は溶融して粘着性を有するため、その溶融したトナーの
一部が加熱ローラ（１）の表面に付着して次の複写紙（
Ｐ）に転写して複写紙（Ｐ）を汚す、いわゆるオフセッ
ト現象が発生する。When performing such heat fixing, copy paper (one sheet above
Since the toner melts and becomes sticky, a portion of the melted toner adheres to the surface of the heating roller (1) and transfers to the next copy paper (
A so-called offset phenomenon occurs in which the toner is transferred to the copy paper (P) and stains the copy paper (P).

こうしたオフセット現象を防止するため、Ｄ’ｒＪ記加
熱ローラ（１）及び加圧ローラ（２）の芯金（＝ＩＪ、
（５）の外周には離型性の良いシリコンゴムやテフロン
等で被覆層（６）、（７）が形成されているが、これた
けでは十分にオフセット現象を防止することかできない
。In order to prevent such an offset phenomenon, the core metal (=IJ,
Covering layers (6) and (7) are formed around the outer periphery of (5) using silicone rubber, Teflon, or the like having good mold releasability, but these alone cannot sufficiently prevent the offset phenomenon.

そこで、加熱ローラ（１）表面へオフセット防止オイル
を供給する必要があり、そのために加熱ローラ（ｉ＞あ
るいは加圧ローラ（２）のどちらかへオイル供給塗布ロ
ーラ（１０）を転接さぜることか行なわれている。Therefore, it is necessary to supply anti-offset oil to the surface of the heating roller (1), and for this purpose, the oil supply coating roller (10) is rolled into contact with either the heating roller (i>) or the pressure roller (2). Something is being done.

オイル供給塗布ローラの構成は、例えば実開昭５０〜１
３６４５号公報等で知られており、一般的には次のよう
なものである。The structure of the oil supply application roller is, for example,
It is known from Publication No. 3645, etc., and is generally as follows.

中空ローラ（１１）内部にはシリコンオイル等のオフセ
ント防止オイル（１２）が収容されており、この中空ロ
ーラ（１１）の周壁には複数個の小孔（１３）が穿設さ
れ、ローラ（１１）表面に滲出可能とされている。An offset prevention oil (12) such as silicone oil is stored inside the hollow roller (11), and a plurality of small holes (13) are bored in the peripheral wall of the hollow roller (11). ) is said to be capable of exuding onto the surface.

さらに、中空ローラ（１１）の外周には紙等からなるオ
イル含浸性層（１５）か設けられている。Further, an oil-impregnated layer (15) made of paper or the like is provided on the outer periphery of the hollow roller (11).

このような構成の塗布ローラ（１０）において、オイル
（１２）は、加熱ローラ（１）からの熱伝導によって粘
度を下げられるために流動性が増し、中空ローラ（１１
）から滲出してオイル含浸性層（１５）へ浸透して行く
。そして、定着ローラの回転に従って塗布徐 ローラ（１０）が回転すると、オイル（１２）は徐々に
定着ローラ表面へ塗布される。In the application roller (10) having such a configuration, the viscosity of the oil (12) is lowered by heat conduction from the heating roller (1), so the fluidity increases, and the oil (12) becomes more fluid.
) and permeates into the oil-impregnated layer (15). When the slow coating roller (10) rotates in accordance with the rotation of the fixing roller, the oil (12) is gradually applied to the surface of the fixing roller.

しかし、塗布ローラ（１０）内部のオフセット防止オイ
ル（１２）が少ない場合、塗布ローラ（１ｏ）の上部と
下部とではオイル（１２）の滲出量が異なり、特に回転
開始後ではその差が大きく、加熱ローラ（１）表面への
オイル塗布が均一に行なわれないという不都合かあった
。さらに、使用されたオイル（Ｉ２）の粘度が高い場合
には、塗布ローラ（１０）の下部にオイル（１２）か溜
まることによって回転体としての重量バランスかくすれ
、定春和−ラの回転に対してスリップを起こし、定着ロ
ーラ表面へ全くオイル塗布されないという状態も発生し
ていた。However, when the amount of anti-offset oil (12) inside the applicator roller (10) is small, the amount of oil (12) that oozes out is different between the upper and lower parts of the applicator roller (1o), and the difference is particularly large after the rotation starts. There was an inconvenience that the oil was not evenly applied to the surface of the heating roller (1). Furthermore, if the viscosity of the oil (I2) used is high, the oil (12) will accumulate at the bottom of the application roller (10), which will affect the weight balance of the rotating body and cause the rotation of the Sadaharuwa-ra to deteriorate. On the other hand, there were cases where slippage occurred and no oil was applied to the surface of the fixing roller at all.

発明の目的・要旨 本発明は以上のような不都合に鑑みてなされたもので、
その目的は、定着ローラへのオイル塗布を均一に行なえ
ると共にＩｍＦ、ムラを発生しないオイル供給塗布ロー
ラを提供することにある。Purpose/Summary of the Invention The present invention has been made in view of the above-mentioned disadvantages.
The purpose is to provide an oil supply application roller that can uniformly apply oil to a fixing roller and does not cause ImF unevenness.

その目的を達成するため、本発明は、中空ローラ内にオ
フセット防止オイルを滲出可能に収容し、該ローラ外周
にオイル含浸性層を設けて成るオイル供給塗布ローラに
おいて、ｍす記中空ローラ内に仕切りを設け、複数個の
オイル収容室を形成したものである。In order to achieve the object, the present invention provides an oil supply coating roller in which offset prevention oil is accommodated in a hollow roller so as to be exudable, and an oil-impregnated layer is provided on the outer periphery of the roller. A partition is provided to form a plurality of oil storage chambers.

実施例 以下、図面を参照して本発明の詳細な説明する。Example Hereinafter, the present invention will be described in detail with reference to the drawings.

第２図および第３図は不発明に係わるオイル供給塗布ロ
ーラ（２０）を示すものである。2 and 3 show an oil supply application roller (20) according to the invention.

塗布ローラ（２０）は両端に支軸（２Ｇ）が突設されて
おり、支軸（２６）を図示しない軸受に支持されること
により、定着ローラに対して従動回転ｈ」能とされてい
る。The application roller (20) has support shafts (2G) protruding from both ends thereof, and by supporting the support shafts (26) on bearings (not shown), the application roller (20) can be driven to rotate with respect to the fixing roller. .

空ローラ（２１）の中心に対して点対称な位置間係で中
心方向へ複数個の仕切り（２１ａ）が設けられ、その中
心部には円筒形の仕切り（２１ｂ）が設けられており、
仕切り（２１ａ）、（２ｚｂ）によって複数ｆｌ、ｎの
オイル収容室（２４）が中空ローラ（２１）の外周に沿
って形成されている。各オイル収容室（２４）には面一
のシリコンオイル等のオフセット防止オイル（２２）　
（粘度：　３００００〜６００００Ｃ５）が収容されて
おり、中空ローラ（２１）周壁に穿設された小孔（２３
）から滲出可能とされている。さらに、中空ローラ（２
１）外周には紙等から成るオイル含浸性層（２５）か設
けられている。なお、オイル（２２）の収容方法として
は、中空ローラ（２１）の一方の端部から各収容室（２
４）へオイル（２２）を注入した後、支軸（２６）を溶
着させるものである。A plurality of partitions (21a) are provided in a point-symmetrical position relative to the center of the empty roller (21) toward the center, and a cylindrical partition (21b) is provided at the center of the partitions (21a).
A plurality of fl and n oil storage chambers (24) are formed along the outer periphery of the hollow roller (21) by the partitions (21a) and (2zb). Each oil storage chamber (24) has a flush anti-offset oil (22) such as silicone oil.
(viscosity: 30,000 to 60,000C5) is accommodated in the small hole (23
). Furthermore, hollow rollers (2
1) An oil-impregnated layer (25) made of paper or the like is provided on the outer periphery. Note that the oil (22) can be stored from one end of the hollow roller (21) to each storage chamber (22).
After oil (22) is injected into 4), the support shaft (26) is welded.

以上のような構成のオイル供給塗布ローラ（２０）にお
いて、従動回転する際、オイル（２２）は各収容室（２
４）から別々に滲出するため、塗布ローラ（２０）の上
部と下部で差を生じることもなく、オイル含浸性輸（２
５）全域へ均ｑに浸透し拡散される。また、収容室（２
４）が塗布ローラ（２０）の内周に沿って設けられてい
るために重量バランスが良く、オイル（２２）が減少し
てきても回転ムラを生じることはない。In the oil supply application roller (20) configured as described above, when the oil supply application roller (20) is driven to rotate, the oil (22) is supplied to each storage chamber (2).
4), there is no difference between the upper and lower parts of the application roller (20).
5) Penetrates and diffuses evenly throughout the area. In addition, the containment room (2
4) is provided along the inner periphery of the application roller (20), the weight balance is good, and uneven rotation does not occur even if the oil (22) decreases.

さらに、イ士切り（２ｚａ）、（２１ｂ）を設けたこと
により、加熱ローラ（１）からの熱か、塗布ローラ（２
０）周壁からだけでなく、内部からも伝導され、オイル
（２２）促 の流動性を向上させてその滲出を促進させている。Furthermore, by providing the cutters (2za) and (21b), the heat from the heating roller (1) or the coating roller (2
0) It is conducted not only from the peripheral wall but also from the inside, improving the fluidity of the oil (22) and promoting its oozing.

第４図は第２実施例を示し、Ｓ１実施例のオイル供給塗
布ローラ（２０）の円筒形仕切り（２］１））内部に加
熱源（２７）を設けたもので、他の構成は第１天゛施例
と同一のため、その説明は省略する。このものにおいて
は、塗布ローラ（２０’）内部からオイル（２２）を加
熱ｂ」能なため、高粘度のオイル（２２）を使用した場
合においても、始用開始時からオイル（２２）の流動性
を確実に向上させることができ、十分なオイル塗布が可
能である。FIG. 4 shows a second embodiment, in which a heating source (27) is provided inside the cylindrical partition (2]1) of the oil supply application roller (20) of the S1 embodiment, and the other configuration is similar to that of the S1 embodiment. Since this is the same as the first embodiment, its explanation will be omitted. In this device, since the oil (22) can be heated from inside the applicator roller (20'), even when using a high viscosity oil (22), the oil (22) flows from the beginning of use. It is possible to reliably improve the properties and apply sufficient oil.

また、第５図は第３実施例を示し、中空ローラ（２１’
　）の内部には、塗布ローラ（２０”）の中心から放射
状に仕切り（２１ａ；’　）が設けられており、中空ロ
ーラ（２１’）の中心に対して点対称な位置関係にオイ
ル収容室（２４’）が形成されている。他の構成は第１
実施例と同一のため、その説明は省略する。Moreover, FIG. 5 shows a third embodiment, in which a hollow roller (21'
) is provided with partitions (21a;') radially from the center of the application roller (20"), and an oil storage chamber (21a;') is provided in a position symmetrical to the center of the hollow roller (21'). 24') is formed.Other configurations are the first
Since this is the same as the embodiment, the explanation thereof will be omitted.

このものにおいても、第１実施例と略同様な効果が得ら
れる。In this case as well, substantially the same effects as in the first embodiment can be obtained.

なお、オイル収容室（２４）は、本実施例では偶数個設
けられているが、奇数個でもよく、また、その容積も同
一である必要はない。Although an even number of oil storage chambers (24) are provided in this embodiment, an odd number may be used, and the volumes thereof do not need to be the same.

効　果 以上の説明で明らかなように、本発明は、中空ローラ内
にオフセット防止オイルを滲出可能に収容し、該ローラ
外周にオイル含浸性層を設けて成るオイル供給塗布ロー
ラにおいて、前記中空ローラ内に仕切りを設け、ローラ
中心に対して点対称な位置関係に複数個のオイル収容室
を形成したから、各収容室からオイルが滲出して定着ロ
ーラへのオイル塗布を均一に行なえると共に回転バラン
スも良く、回転ムラを発生することもない。Effects As is clear from the above explanation, the present invention provides an oil supply application roller comprising a hollow roller that accommodates offset prevention oil so that it can seep out, and an oil-impregnated layer provided on the outer periphery of the roller. Since a partition is provided inside and a plurality of oil storage chambers are formed in a point-symmetrical position with respect to the center of the roller, oil oozes out from each storage chamber, allowing oil to be evenly applied to the fixing roller while rotating. It has good balance and does not cause uneven rotation.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はオイル供給塗布ローラを有する定着ローラの基
本形態を示す概略図、第２図は本発明の第１実施例を示
すＩ＃ｒ面図、第３図は第２図のＡ−Ａ線断面図、第４
図は本発明の第２実施例を示す断面図、第５図は本発明
の第３実施例を示す断面図である。 （１０）、（２０）、（２０’）、（２０つ・・・オイ
ル供給塗イ「ローラ、（ＩＩ）、（２１）、（２１’片
・・中空ローラ、（１２）、（２２）・・オフセット防
止用オイル、（１３）、（２３）・・・小孔、（１５）
。 （２５）　・”オイル含浸性層、（２’ｌａ）、（２１
ａ’）、（２１ｂ）　・・・仕切り、（２４）・・・オ
イル収容室。 出願人　ミノルタカメラ株式会社 第１図 第２図 第３図 γぎ４図FIG. 1 is a schematic diagram showing the basic form of a fixing roller having an oil supply application roller, FIG. 2 is an I#r side view showing the first embodiment of the present invention, and FIG. 3 is a line A-A in FIG. 2. Line sectional view, 4th
The figure is a sectional view showing a second embodiment of the invention, and FIG. 5 is a sectional view showing a third embodiment of the invention. (10), (20), (20'), (20 pieces...Oil supply coating roller, (II), (21), (21' piece...Hollow roller, (12), (22) ...Offset prevention oil, (13), (23)...Small hole, (15)
. (25) ・"Oil-impregnated layer, (2'la), (21
a'), (21b)...Partition, (24)...Oil storage chamber. Applicant Minolta Camera Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4 Figure 4

Claims (1)

【特許請求の範囲】 １、　中空ローラ内にオフセット防止オイルを滲出可能
に収容し、該ローラ外周にオイル含浸性層を設けて成る
オイル供給塗布ローラにおいて、前記中空ローラ内に仕
切りを設け、複数個のオイル収容室を形成したことを特
徴とするオイル供給塗布ローラ。 ２、複数個のオイル収容室に囲まれた位置に、加熱源を
設けたことを特徴とする特許請求の範囲第１項記載のオ
イル供給塗布ローラ。[Claims] 1. An oil supply application roller comprising a hollow roller containing offset prevention oil so as to be able to seep out, and an oil-impregnated layer provided on the outer periphery of the roller, wherein a partition is provided within the hollow roller, and a plurality of partitions are provided within the hollow roller. An oil supply application roller characterized in that a number of oil storage chambers are formed. 2. The oil supply application roller according to claim 1, wherein a heating source is provided at a position surrounded by a plurality of oil storage chambers.
JP2815484A 1984-02-16 1984-02-16 Oil supplying and applying roller Pending JPS60172063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2815484A JPS60172063A (en) 1984-02-16 1984-02-16 Oil supplying and applying roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2815484A JPS60172063A (en) 1984-02-16 1984-02-16 Oil supplying and applying roller

Publications (1)

Publication Number Publication Date
JPS60172063A true JPS60172063A (en) 1985-09-05

Family

ID=12240834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2815484A Pending JPS60172063A (en) 1984-02-16 1984-02-16 Oil supplying and applying roller

Country Status (1)

Country Link
JP (1) JPS60172063A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5045889A (en) * 1990-08-20 1991-09-03 Eastman Kodak Company Release liquid applying wick having a grooved feed tube
US5235394A (en) * 1992-09-02 1993-08-10 Eastman Kodak Company Push-pull wicking device for fixing roller
US5278617A (en) * 1992-12-04 1994-01-11 Xerox Corporation Modified donor roll
US5534986A (en) * 1992-10-22 1996-07-09 Siemens Nixdorf Informationssysteme Aktiengesellschaft Replaceable separating agent metering device for a fuser roller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5045889A (en) * 1990-08-20 1991-09-03 Eastman Kodak Company Release liquid applying wick having a grooved feed tube
US5235394A (en) * 1992-09-02 1993-08-10 Eastman Kodak Company Push-pull wicking device for fixing roller
US5534986A (en) * 1992-10-22 1996-07-09 Siemens Nixdorf Informationssysteme Aktiengesellschaft Replaceable separating agent metering device for a fuser roller
US5278617A (en) * 1992-12-04 1994-01-11 Xerox Corporation Modified donor roll

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