JPH048796B2 - - Google Patents
Info
- Publication number
- JPH048796B2 JPH048796B2 JP6291984A JP6291984A JPH048796B2 JP H048796 B2 JPH048796 B2 JP H048796B2 JP 6291984 A JP6291984 A JP 6291984A JP 6291984 A JP6291984 A JP 6291984A JP H048796 B2 JPH048796 B2 JP H048796B2
- Authority
- JP
- Japan
- Prior art keywords
- heat roll
- mounting frame
- roll
- mounting
- mounting hole
- 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
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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
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トロール
方式の定着装置は、上下一対のヒートロールとプ
レツシヤーロール、及びこれらのロールを固定し
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
かけてもう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
ールとプレツシヤーロールとの間にニツプして加
熱及び加圧して像定着を行なうように構成されて
いた。そして、該定着装置のヒートロールの表面
は記録紙に対する離型性及び耐熱性等を考慮して
通常シリコンゴムや或はフツソゴム等で被覆して
いたが、これらの材料は傷つき易い性質をもつて
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つた欠点があつた。(Prior Art) A heat roll type fixing device in a conventional 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. It is placed at an appropriate location in the middle of the paper conveyance path that runs 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 and conveyed by the transfer section of the photoconductor. The recording paper was nipped between the heat roll and the pressure roll, and the image was fixed by heating and pressurizing the paper. The surface of the heat roll of the fixing device is usually coated with silicone rubber or soft rubber in consideration of its releasability from the recording paper and its heat resistance, but these materials tend to be easily damaged. Therefore, when replacing the roll, there is a risk that it may come into contact with the mounting hole of the mounting frame and damage it, and therefore, the replacement work requires caution and work efficiency is 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つて、前記取付フレーム
に固定しておいたヒートロールの保全交換時、当
該ヒートロ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 is to facilitate the attachment and detachment of the heat roll fixed to the mounting frame when the heat roll is replaced 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ロールの両端部
を取付フレームに回転可能に取付けるにあたり、
当該ヒートロールの外径よりも大きな外径を有す
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を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つ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 the following steps when rotatably attaching both ends of the heat roll to the mounting frame:
The mounting hole, through which the mounting frame is drilled to secure the bearing through the bearing having an outer diameter larger than the outer diameter of the heat roll, has a size that matches the outer diameter of the bearing, and there is a hole below the mounting hole. A notch is provided, and a heat roll sliding member made of a material with excellent heat resistance and sliding properties is arranged and attached to the notch.
（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。(Example) The present invention will be described in detail below based on an example 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.
プレツシヤーロール１と上下一対のヒートロー
ル２を取付フレーム３，３′間にベアリング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
も大き目のものを用い、且つ該ベアリング４，
４′を固定するために前記取付フレーム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′にテフロン登録商標樹脂等
の耐熱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。 A pressure roll 1 and a pair of upper and lower heat rolls 2 are mounted between the frames 3 and 3' with bearings 4,
4', the outer diameter of the bearings 4, 4' is larger than the outer diameter of the heat roll 2, and
The mounting holes 5, 5' formed in the mounting frames 3, 3' in order to fix the bearings 4, 4' are
The size of the mounting hole 5, which matches the outer diameter of 4',
Notches 6 and 6' are provided in the lower part of each part 5', and sliding members 7 and 7' made of Teflon registered trademark resin or the like having excellent heat resistance and slidability are arranged in the notches 6 and 6', respectively. Do it like this.
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ロール２を他のヒートロ
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自体を矢印Ａに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
を取付ける際にも前記取付孔５′の切欠部６′にあ
らかじめ設けられている摺動部材７′はヒートロ
ール２を支持し、当該ロール２の表面を取付孔
５′の円周と接触しないように保つてくれる。 The present invention is constructed as described above. Now, as shown in Fig. 1, the mounting frame 3,
In order to replace the heat roll 2 installed between 3' and 3' with another heat roll 2, the mounting frame 3,
3', first remove the bearings 4, 4' from the mounting frames 3, 3', and then pull out the heat roll 2 itself in the axial direction shown by arrow A. 2 can be pulled out within the mounting hole 5' without contacting the circumference of the mounting hole 5' by being supported by the sliding member 7' of the notch 6' provided at the lower part of the mounting hole 5'. Also, contrary to the drawing operation, the heat roll 2
When installing the heat roll 2, the sliding member 7' previously provided in the notch 6' of the mounting hole 5' supports the heat roll 2 so that the surface of the roll 2 does not come into contact with the circumference of the mounting hole 5'. It will keep you like that.
（発明の効果）
従つ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当該作業
を行なうことができることになるから、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
になるといつた効果を有する。(Effects of the Invention) Therefore, the present invention provides that when replacing the heat roll 2,
This means that the worker can perform the work without being very careful, so
This has the effect that time can be shortened, work efficiency can be improved, and work costs can be reduced 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図は同取付フレームの取付孔部の拡大
図である。
図中１……プレツシヤーロール、２……ヒート
ロール、３，３′……取付フレーム４，４′……ベ
アリング、５，５′……取付孔、６，６′……切欠
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 portion of the mounting frame. In the figure, 1... pressure roll, 2... heat roll, 3, 3'... mounting frame 4, 4'... bearing, 5, 5'... mounting hole, 6, 6'... notch, 7, 7'...Sliding member.
Claims (1)
ツシヤロールと対に取付けるにあたり、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
くもうけ、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
設け、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、ロー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にしたことを特徴とす
る電子写真複写機等の定着装置。1. When installing a heat roll as a pair with a pressure roll between two mounting frames, the outer diameter of the bearing that rotatably holds the heat roll on the mounting frame is larger than the outer diameter of the heat roll, and the bearing is fixed. Therefore, the mounting hole drilled in the mounting frame has a cutout below it, and a sliding member is placed in the cutout to prevent the heat roll from attaching or detaching from the mounting frame in the axial direction. A fixing device for an electrophotographic copying machine, etc., characterized in that an outer periphery does not contact the circumference of a mounting hole of a 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 JPS60205559A (en) | 1985-10-17 |
| JPH048796B2 true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5428470B2 (en) * | 2009-03-31 | 2014-02-26 | 株式会社リコー | Fixing apparatus and image forming apparatus having the same |
-
1984
- 1984-03-30 JP JP6291984A patent/JPS60205559A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60205559A (en) | 1985-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4755849A (en) | Fixing device for an image reproducing apparatus | |
| JPH03503093A (en) | Fusing device with an axially unsupported fusing roller | |
| US6198902B1 (en) | Electrostatographic reproduction machine including a dual function fusing belt deskewing and heating assembly | |
| JPH048796B2 (en) | ||
| JPS61134777A (en) | Fixing device | |
| JPS62135865A (en) | Fixing device | |
| JP2004212844A (en) | Fixing device | |
| US6263181B1 (en) | Electrostatographic reproduction machine including a dual function fusing belt deskewing and oiling assembly | |
| JP2004279547A (en) | Fixing device | |
| JP2722473B2 (en) | Pressure roller device in fixing device | |
| JP2586842Y2 (en) | Fixing device | |
| JPH0453657Y2 (en) | ||
| EP1394632A1 (en) | Compact belt fuser apparatus | |
| JPS6118982A (en) | Fixing device | |
| JPS6252580A (en) | Paired fixing roller for fixing device | |
| JPH08119484A (en) | Belt driving device | |
| JPH0792846A (en) | Fixing device and spacer for preventing deformation of pressing roller | |
| JP3291140B2 (en) | Fixing device | |
| JPH05188810A (en) | Fixing device | |
| JPH0481791B2 (en) | ||
| JPS60104977A (en) | Fixing device | |
| JP3703246B2 (en) | Sheet material feeding roller and image forming apparatus | |
| JP2004013013A (en) | Heat fixing system and image forming apparatus | |
| JP2001343851A (en) | Heat roll and electrophotographic device using the same | |
| JPH04134386A (en) | Fixing device |