JPS60205559A - Fixing device of electrophotographic copying machine and the like - Google Patents
Fixing device of electrophotographic copying machine and the likeInfo
- Publication number
- JPS60205559A JPS60205559A JP6291984A JP6291984A JPS60205559A JP S60205559 A JPS60205559 A JP S60205559A JP 6291984 A JP6291984 A JP 6291984A JP 6291984 A JP6291984 A JP 6291984A JP S60205559 A JPS60205559 A JP S60205559A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- roll
- fixing
- mounting frame
- fixing 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.)
- Granted
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
- G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は電子写真複写機等におけるヒートロール方式の
定着装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a heat roll type fixing device in an electrophotographic copying machine or the like.
（従来の技術）
従来の電子写真複写機等におけるヒー）Ｒ−ル方式の定
着装置は、上下一対のヒートロールとプレッシャーロー
ル、及びこれらの１−ルを固定しておくための取付フレ
ームからなり、これを機械本体内の感光体の転写部から
機外の排紙トレイにかけても５けた用紙の搬送路の中間
部の適所に配置し、前記感光体の転写部で未定着のトナ
ー像を転写されて搬送されて来る記録紙を前記ヒートロ
ールとプレッシャーロールとの間にニップして加熱及び
加圧して像定着を行な５よ５に構成されていた。そして
、該定着装置のヒートロールの表面は記録紙に対する層
温性及び耐熱性等を考慮し【通常シリコレゴムや或はフ
ッソゴム勢で被覆していたが、これらの材料は傷つき易
い性質をもっていたため、ロールの交換時、取付フレー
ムの取付孔等に接触させて傷つけてしまう心配が多く、
そのために当該交換作業により慎重性が要求されて作業
能率が上がらないといった欠点があった。(Prior Art) A conventional heat roll type fixing device in an electrophotographic copying machine, etc. consists of a pair of upper and lower heat rolls and a pressure roll, and a mounting frame for fixing these rolls. This is placed at an appropriate location in the middle of the 5-digit paper conveyance path from the transfer section of the photoconductor inside the machine body to the paper output tray outside the machine, and the unfixed toner image is transferred at the transfer section of the photoconductor. The recording paper that has been conveyed is nipped between the heat roll and the pressure roll, and is heated and pressurized to fix the image. The surface of the heat roll of the fixing device was usually coated with silicone rubber or fluoro rubber in consideration of layer temperature properties and heat resistance against the recording paper, but since these materials were easily damaged, When replacing the roll, there is a lot of fear that it may come into contact with the mounting holes of the mounting frame and cause damage.
Therefore, there was a drawback that the replacement work required carefulness and work efficiency was not improved.
（発明の目的）
本発明は上記従来の定着装置の欠点を除去するためにな
されたものであって、前記取付フレームに固定し【おい
たヒートロールの保全交換時、当該ヒートルールの脱着
を容易迅速に行なえるようにした電子写真複写機等の定
着装置を提供することを目的としたものである。(Object of the Invention) The present invention has been made in order to eliminate the drawbacks of the conventional fixing device described above, and it is possible to easily attach and detach the heat rule when replacing the heat roll fixed to the mounting frame for maintenance. It is an object of the present invention to provide a fixing device for an electrophotographic copying machine or the like that can perform quick fixing.
（発明の構成）
そのために本発明は前記ヒートルールの両端部を取付フ
レームに回転可能に取付けるにあたり、尚核ヒートロー
ルの外径よりも大きな外径な肩するベアリングを介し、
且つ該ベアリングを固定するため取付フレームに穿設す
る取付孔はベアリングの外径と合致する大きさにすると
共に、その下方には切欠部をもうけ、該切欠部には耐熱
性、摺動性に優れた材料で造ったヒートロールの摺動部
材を配置して取付けるようにしたものである。(Structure of the Invention) For this purpose, the present invention provides for rotatably attaching both ends of the heat rule to the mounting frame via shoulder bearings having an outer diameter larger than the outer diameter of the core heat roll.
In addition, the mounting hole drilled in the mounting frame to secure the bearing is sized to match the outer diameter of the bearing, and a notch is provided below the hole, and the notch has heat resistance and sliding properties. The sliding member of the heat roll made of superior material is arranged and attached.
（実 施 例）
以下本発明を図面に示す実施例に基づいて詳細に説明す
る。(Embodiments) The present invention will be described in detail below based on embodiments shown in the drawings.
第１図は本発明の定着装置の一実施例を示す斜視図、第
２図は同、取付フレームの取付孔部の拡大図である。FIG. 1 is a perspective view showing an embodiment of the fixing device of the present invention, and FIG. 2 is an enlarged view of the mounting hole portion of the mounting frame.
プレッシャーロールｌと上下一対のヒートロール２を取
付フレーム３，３’間にペアリン／４．４’を介して取
付けるにあたり、当該ベアリング４．４′の外径が前記
ヒートロール２の外径よりも太き目のものを用い、且つ
該ベアリング４．４Ｉを固定するため前記取付フレーム
３．３′に穿設する取付孔５．５′を当該ベアリング４
．４′の外径と合致する大きさにし、当該取付孔５．５
′の下部には夫々切欠部６．６′を設けると共に、該切
欠部６．６′にはテア０ン樹脂等の針環性及び摺動性に
優れた摺動部材７．７′を配置するようにする。When installing the pressure roll l and the pair of upper and lower heat rolls 2 between the mounting frames 3 and 3' via a pair ring/4.4', the outer diameter of the bearing 4.4' is larger than the outer diameter of the heat roll 2. A mounting hole 5.5' is formed in the mounting frame 3.3' to fix the bearing 4.4I.
．． The size should match the outer diameter of 4', and the corresponding mounting hole 5.5
A notch 6.6' is provided in the lower part of each of the two parts, and a sliding member 7,7' made of tear-free resin or the like with excellent needle ringability and slidability is arranged in the notch 6.6'. I'll do what I do.
本発明は以上のように構成したもの゛である。而して今
、第１図に示すように取付フレーム３．３′間に取付け
たヒートルール２を他のヒートー−ル２と交換するため
、前記取付フレーム３．３′から取外すには、まずベア
リング４．４′を取付フレーム３．３′から外し、次に
ヒートロール２自体な矢印ＡＫ示す軸方向に、引抜けば
良く、このようにすれば前記ヒートロール２は、取付孔
５′内において、当該取付孔５′の下部に設けた切欠部
６′の摺動部材７′に支持されて取付孔５′の円周とは
接触することなく引抜けることになるし、又当該引抜き
作業とは反対にヒートロール２を取伺ける際にも前記取
付孔５′の切欠部６’に設けた摺動部材７′はヒートロ
ール２を支持し、当該ｐ−ル２の表面を取付孔５′の円
周と接触しないように保ってくれる。The present invention is constructed as described above. Now, as shown in Fig. 1, in order to replace the heat rule 2 installed between the mounting frames 3.3' with another heat rule 2, the first step is to remove it from the mounting frame 3.3'. All you have to do is remove the bearing 4.4' from the mounting frame 3.3' and then pull it out in the axial direction of the heat roll 2 itself as shown by the arrow AK. In this case, it is supported by the sliding member 7' of the notch 6' provided at the lower part of the mounting hole 5' and can be pulled out without contacting the circumference of the mounting hole 5'. On the contrary, even when the heat roll 2 is removed, the sliding member 7' provided in the notch 6' of the mounting hole 5' supports the heat roll 2, and the surface of the roll 2 is attached to the mounting hole. It keeps it from coming into contact with the 5' circumference.
（発明の効果）
従って本発明は前記ヒートロール２の交換時、作業者は
さほどの慎重を要することなく尚該作業を行なうことが
できることｋなるから、その分、時間を短縮することが
可能となり、作業能率の向上、及びこれに基づく作業コ
ストのダウンが可能になるといった効果を有する。(Effects of the Invention) Therefore, according to the present invention, when replacing the heat roll 2, the operator can perform the work without being very careful, and the time can be shortened accordingly. This has the effect of improving work efficiency and reducing work costs based on this.
第１図は本発明の定着装置の一実施例を示す斜視図、第
２図は同取付フν一ムの取付孔部の拡大図である。
図中１・・・プレッシャーロール、２・・・ヒートＥ
−ル、３．３′川取付フレーム、４．４’・・・ペアす
７／、５．５′・・・取付孔、６．６′・・・切入部、
７．７′・・・摺動部材。FIG. 1 is a perspective view showing an embodiment of the fixing device of the present invention, and FIG. 2 is an enlarged view of the mounting hole of the same mounting frame. In the diagram 1...Pressure roll, 2...Heat E
-Role, 3.3' River mounting frame, 4.4'... Pair 7/, 5.5'... Mounting hole, 6.6'... Cutout,
7.7'...Sliding member.
Claims (1)
ルと対に取付けるＫあたり、当該ヒートロールを取付フ
レームに回転可能に保持するベアリングの外径をヒート
ロールの外径よりも大きくも５げ、且つ該ベアリングを
固定するため取付フレームに穿設する取付孔はその下方
に切欠部を設げ、該切欠部には摺動部材を配置して、前
記取付フレームに対しヒートロールを軸方向に向けて着
脱する際、−−ルの外周が取付フレームの取付孔の円周
に接触しないようＫしたことを特徴とする電子写真複写
機等の定着装置。When installing the heat rule in pairs with the pressure roll between two mounting frames, the outer diameter of the bearing that rotatably holds the heat roll on the mounting frame must be larger than the outer diameter of the heat roll, and the bearing The mounting hole drilled in the mounting frame for fixing the heat roll has a cutout below it, and a sliding member is placed in the cutout to attach and detach the heat roll to and from the mounting frame in the axial direction. A fixing device for an electrophotographic copying machine or the like, characterized in that the outer periphery of the ring does not come into contact with the circumference of the mounting hole of the mounting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6291984A JPS60205559A (en) | 1984-03-30 | 1984-03-30 | Fixing device of electrophotographic copying machine and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6291984A JPS60205559A (en) | 1984-03-30 | 1984-03-30 | Fixing device of electrophotographic copying machine and the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60205559A true JPS60205559A (en) | 1985-10-17 |
| JPH048796B2 JPH048796B2 (en) | 1992-02-18 |
Family
ID=13214141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6291984A Granted JPS60205559A (en) | 1984-03-30 | 1984-03-30 | Fixing device of electrophotographic copying machine and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60205559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010237508A (en) * | 2009-03-31 | 2010-10-21 | Ricoh Co Ltd | Fixing unit and image forming apparatus including the same |
-
1984
- 1984-03-30 JP JP6291984A patent/JPS60205559A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010237508A (en) * | 2009-03-31 | 2010-10-21 | Ricoh Co Ltd | Fixing unit and image forming apparatus including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH048796B2 (en) | 1992-02-18 |
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