JPH03266872A - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JPH03266872A JPH03266872A JP2066386A JP6638690A JPH03266872A JP H03266872 A JPH03266872 A JP H03266872A JP 2066386 A JP2066386 A JP 2066386A JP 6638690 A JP6638690 A JP 6638690A JP H03266872 A JPH03266872 A JP H03266872A
- Authority
- JP
- Japan
- Prior art keywords
- side plate
- pressure roller
- pin
- fixing device
- supporting
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Paper Feeding 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、定着装置、詳しくは脱着容易な定着装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fixing device, and more particularly to a fixing device that is easily attached and detached.
複写機、プリンター等の定着装置は、加熱ローラ、加圧
ローラの交換、用紙の詰まりゃ巻きつきの除去等のため
に、しばしば脱着される。2. Description of the Related Art Fixing devices of copying machines, printers, and the like are often removed for purposes such as replacing heating rollers and pressure rollers, and removing jammed or tangled sheets of paper.
しかし、従来の定着装置にあっては、例えば特開昭５８
−４２０７８号公報に示されるように、箱体内に加熱ロ
ーラを回転可能に設け、これに当接する加圧ローラを、
箱体に軸支された加圧レバーで支持する構造となってい
る。この箱体と本体との分離は容易に行えるが、加熱ロ
ーラと加圧ローラとは、その分離の際同時に加圧レバー
を回動させて両ローラの圧接を解除するだけの構成とな
っている。そのため、加熱ローラ及び加圧ローラの脱着
は、両ローラの各部の取りつけネジを外してほとんど定
着装置を解体する形でしか行うことができなかった。However, in conventional fixing devices, for example,
As shown in Japanese Patent No. 42078, a heating roller is rotatably provided inside the box, and a pressure roller that comes into contact with the heating roller is
It is supported by a pressure lever that is pivoted on the box body. The box and main body can be easily separated, but the heating roller and pressure roller are configured so that when they are separated, the only thing to do is rotate the pressure lever at the same time to release the pressure between the two rollers. . Therefore, the heating roller and the pressure roller can only be attached and detached by removing the mounting screws of each part of both rollers and disassembling the fixing device.
本発明の目的は、これらの欠点を除去し、工具がなくて
も、また、はとんど解体同然にすることもなく、加熱ロ
ーラ及び加圧ローラを容易に脱着できるようにすること
である。The object of the present invention is to eliminate these drawbacks and to make it possible to easily attach and detach the heating roller and the pressure roller without tools and without having to dismantle the roller. .
本発明によれば、加熱ローラの両端をそれぞれ分割可能
な上側板と下側板とから成る側板で回転可能に支持し、
加圧ローラの両端をそれぞれ支持板で回転可能に支持し
、該両端の支持板を一体的に結合して加圧ローラ支持ユ
ニットを構成し、加圧ローラを挟んで加圧ローラ支持ユ
ニットの一端部を前記下側板に設けた支持部材上に載置
し、他端部を前記上側板に設けた加圧レバーに係脱自在
に係合し、更に定着装置の用紙排出手段を両ローラから
退避可能にしたことを特徴とする定着装置が提供される
。According to the present invention, both ends of the heating roller are rotatably supported by side plates each consisting of an upper plate and a lower plate that can be separated,
Both ends of the pressure roller are rotatably supported by support plates, the support plates at both ends are integrally connected to form a pressure roller support unit, and one end of the pressure roller support unit is sandwiched between the pressure rollers. part is placed on a support member provided on the lower plate, the other end is removably engaged with a pressure lever provided on the upper plate, and further the paper ejection means of the fixing device is retracted from both rollers. A fixing device is provided that is characterized in that it enables.
本発明の定着装置の使用時における構造を第１図に示す
。FIG. 1 shows the structure of the fixing device of the present invention when in use.
加熱ローラ１の両端にはベアリング２が取りつけてあり
、このベアリング２がそれぞれ上側板と下側板４０間に
挟持されている。上側板３と下側板４は、ピン５を中心
に上下に分割可能である。Bearings 2 are attached to both ends of the heating roller 1, and the bearings 2 are sandwiched between an upper plate and a lower plate 40, respectively. The upper side plate 3 and the lower side plate 4 can be divided into upper and lower parts centering on the pin 5.
加圧ローラ６の両端にもベアリング７が取りつけてあり
、このベアリング７が支持板８のＵ溝りａ内に載置され
ている。両側の支持板８は結合部材９．１０で一体に形
成されており、加圧ローラ支持ユニットを構成している
。Bearings 7 are also attached to both ends of the pressure roller 6, and these bearings 7 are placed in the U groove a of the support plate 8. The supporting plates 8 on both sides are integrally formed with connecting members 9, 10 and constitute a pressure roller supporting unit.
一方の結合部材９は、下側板４上に設けた支持部材１１
上に載置されている。支持部材１１は、下側板の一部を
折り曲げて形成したブラケット１２に回動自在に取りつ
けられており、切欠部１３を有する回転シャツ）１４に
よりその回転が規制されている。One coupling member 9 is connected to a support member 11 provided on the lower plate 4.
is placed on top. The support member 11 is rotatably attached to a bracket 12 formed by bending a part of a lower plate, and its rotation is restricted by a rotary shirt 14 having a notch 13.
他方の結合部材１０は単に板状のものである。The other coupling member 10 is simply plate-shaped.
加圧ローラ６を挟んで結合部材９の反対側にはピン１５
が設けられており、このピン１５は、加圧レバー１６を
構成するりンク１７のフック部と係合している。A pin 15 is provided on the opposite side of the coupling member 9 with the pressure roller 6 in between.
is provided, and this pin 15 engages with a hook portion of a link 17 constituting the pressure lever 16.
加圧レバー１６は、ピン１６ａによリリンク１７に回転
可能に連結されたレバー１８を有する。The pressure lever 16 has a lever 18 rotatably connected to the relink 17 by a pin 16a.
このレバー１８は、ピン１９により前記上側板３上に回
動可能に取りつけられ、その一端には、引張バネ２０が
取りつけられている。この引張バネ２０は、支持板８の
ピン１５を上方に押し上げて、加熱ローラ１に加圧ロー
ラ６を圧接するようになっている。This lever 18 is rotatably attached to the upper plate 3 by a pin 19, and a tension spring 20 is attached to one end thereof. This tension spring 20 pushes up the pin 15 of the support plate 8 and presses the pressure roller 6 against the heating roller 1 .
両側の上側板３は、ステー２１．２２により一体にされ
ており、また、両側の下側板は、ステー２３．２４によ
り一体にされている。さらに、このステー２３．２４は
、装置本体に設けた引き出しレール（図示せず）上をス
ライドするようになっており、定着装置を装置本体から
外部に引き出せるようになっている。The upper plates 3 on both sides are integrated by stays 21.22, and the lower plates on both sides are integrated by stays 23.24. Further, the stays 23 and 24 are adapted to slide on pull-out rails (not shown) provided on the apparatus main body, so that the fixing device can be pulled out from the apparatus main body.
上側板３と下側板４とは、回動支点であるピン５の反対
側において、下側板の外側に設けたフック２５により互
いに係止する。The upper side plate 3 and the lower side plate 4 are locked to each other by a hook 25 provided on the outside of the lower side plate on the opposite side of the pin 5 which is a pivot point.
２６は用紙排出手段を支持するフレームであり、この用
紙排出手段は、ガイド板２７、搬送ローラ対２８、加熱
ローラ１、加圧ローラ６の周面と接触する用紙剥離爪（
図示せず）を有する。この用紙排出手段は、下側板４に
ピン又は軸２９により回動自在に支持されており、下方
位置に退避させることにより、定着装置の用紙排出側を
開放できるようになっている（第２図）。なお、フレー
ム２６は、第１図の閉鎖位置では、ステー２１にスナッ
プ止めされるようになっている。３０は、下側板４に設
けた上下の入口シュート（ガイド板）である。Reference numeral 26 denotes a frame that supports a paper ejecting means, and this paper ejecting means includes a paper peeling claw (
(not shown). This paper ejection means is rotatably supported by a pin or shaft 29 on the lower plate 4, and by retracting it to a lower position, the paper ejection side of the fixing device can be opened (see Fig. 2). ). Note that the frame 26 is adapted to be snapped onto the stay 21 in the closed position shown in FIG. Reference numeral 30 indicates upper and lower inlet chutes (guide plates) provided on the lower plate 4.
第２図に示すように、フレーム２６を下方に回動し、更
にレバー１８を矢印Ａ方向に押圧しながらリンク１７を
矢印Ｂ方向に押すと、リンク１７のフック部と支持板８
のピン１５の係合が外れ、加圧ローラ支持ユニットは、
結合部材９を中心にして下方に落ち込む。この結果、加
熱ローラ１と加圧ローラ６とは、圧接状態が解除され、
離間する。なお、回転シャフト１４は、圧接力を弱める
ためのものであり、上記動作に先立ち作動させれば、リ
ンク１７のフック部とピン１５との係合を外し易くなる
。As shown in FIG. 2, when the frame 26 is rotated downward and the link 17 is pushed in the direction of arrow B while pressing the lever 18 in the direction of arrow A, the hook part of the link 17 and the support plate 8
The pin 15 of is disengaged, and the pressure roller support unit is
It falls downward centering on the coupling member 9. As a result, the heating roller 1 and the pressure roller 6 are released from the pressed state.
Separate. Note that the rotating shaft 14 is for weakening the pressure contact force, and if activated prior to the above operation, the hook portion of the link 17 and the pin 15 can be easily disengaged.
上記状態においては、加圧ローラ支持ユニー／ トは結
合部材９が支持部材１１上に載っているだけなので、矢
印Ｃ方向に容易に取り出すことができる。従来のもので
は、加熱ローラを上方に引き上げるか、側方に引き出し
た後でなければ加圧ローラを取り圧すことができなかっ
たが、本発明では加圧ローラのみを取り畠せる。In the above state, the pressure roller support unit can be easily taken out in the direction of arrow C since only the coupling member 9 rests on the support member 11. In the conventional device, the pressure roller could only be removed and pressed after the heating roller was pulled up or pulled out to the side, but with the present invention, only the pressure roller can be removed.
更に、第３図に示すように、フック２５を外し上側板３
を上方に回動すれば、加熱ローラ１も上方から容易に取
り出せる。側方から引き抜くものに比べれば、非常に取
り出し易い。Furthermore, as shown in FIG. 3, remove the hook 25 and remove the upper plate 3.
By rotating the heating roller 1 upward, the heating roller 1 can also be easily taken out from above. It's much easier to take out than pulling it out from the side.
第４図は、第３図のｒＶ−ｒＶ断面図であり、第５図は
、加熱ローラ１、加圧ローラ６を省略した本発明の斜視
図である。第５図に示すものが他側にも位置する。4 is a sectional view taken along the line rV-rV in FIG. 3, and FIG. 5 is a perspective view of the present invention in which the heating roller 1 and pressure roller 6 are omitted. The one shown in FIG. 5 is also located on the other side.
本発明によれば、定着装置を解体することなく、また工
具を必要とすることもなく、加圧ローラのみを容易に脱
着できる。According to the present invention, only the pressure roller can be easily attached and detached without disassembling the fixing device or requiring any tools.
第１図は、本発明による定ｆ装置の正常時における構造
を示す横断面図、
第２図は、本発明による定着装置の加熱ローラと加圧ロ
ーラとの圧接を解除した状態を示す横断面図、
第３図は、本発明による定着装置の上側板と下側板とを
分離した状態を示す横断面図、第４図は、第３１！１の
定着装置において■−■から見た状態を示す縦断面図、
及び
第５図は、加熱ローラおよび加圧ローラを省略した本発
明の定着装置の斜視図である。
１・・・・・・加熱ローラ、２．７・・・・・・ベアリ
ング、３・・・・・・上側板、４・・・・・・下側板、
５・・・・・・ピン、６・・・・・・加圧ローラ、８・
・・・・・支持板、８ａ・・・・・・Ｕ溝、９．１０・
・・・・・結合部材、１１・・・・・・支持部材、１２
・・・・・・ブラケット、１３・・・・・・切欠部、１
４・・・・・・シャフト、１５・・・・・・ピン、１６
・・・・・・加圧レバー、１６ａ・・・・・・ビン、１
７・・・・・・リンク、１８・・・・・・レバー・・・
・・・ビン、２０
、２２、２３、
・・・・・・フック、２
・・・・・・ガイド板、
・・・・・・軸。
・・・・・・引張バネ、
２４・・・・・・ステー、
６・・・・・・用紙排出手段、
２８・・・・・・搬送ローラ対、
第１図
４FIG. 1 is a cross-sectional view showing the structure of the constant f device according to the present invention in normal operation, and FIG. 2 is a cross-sectional view showing the fixing device according to the present invention in a state where the heating roller and pressure roller are released from pressure contact. Fig. 3 is a cross-sectional view showing the state in which the upper and lower plates of the fixing device according to the present invention are separated, and Fig. 4 shows the state of the fixing device of No. 31!1 viewed from ■-■. A longitudinal cross-sectional view showing,
and FIG. 5 are perspective views of the fixing device of the present invention in which the heating roller and pressure roller are omitted. 1...Heating roller, 2.7...Bearing, 3...Upper side plate, 4...Lower side plate,
5... Pin, 6... Pressure roller, 8...
...Support plate, 8a...U groove, 9.10.
...Connecting member, 11... Supporting member, 12
...Bracket, 13...Notch, 1
4...Shaft, 15...Pin, 16
...Pressure lever, 16a...Bin, 1
7...Link, 18...Lever...
... Bin, 20, 22, 23, ... Hook, 2 ... Guide plate, ... Shaft. ...Tension spring, 24 ... Stay, 6 ... Paper ejection means, 28 ... Conveyance roller pair, Fig. 1 4
Claims (1)
とから成る側板で回転可能に支持し、加圧ローラの両端
をそれぞれ支持板で回転可能に支持し、該両端の支持板
を一体的に結合して加圧ローラ支持ユニットを構成し、
加圧ローラを挟んで加圧ローラ支持ユニットの一端部を
前記下側板に設けた支持部材上に載置し、他端部を前記
上側板に設けた加圧レバーに係脱自在に係合し、更に定
着装置の用紙排出手段を両ローラから退避可能にしたこ
とを特徴とする定着装置。Both ends of the heating roller are rotatably supported by side plates consisting of a divisible upper plate and a lower plate, both ends of the pressure roller are rotatably supported by support plates, and the support plates at both ends are integrally supported. Combined to form a pressure roller support unit,
One end of the pressure roller support unit is placed on a support member provided on the lower plate with the pressure roller in between, and the other end is removably engaged with a pressure lever provided on the upper plate. . A fixing device further characterized in that a paper ejection means of the fixing device can be retracted from both rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2066386A JP2886605B2 (en) | 1990-03-16 | 1990-03-16 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2066386A JP2886605B2 (en) | 1990-03-16 | 1990-03-16 | Fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03266872A true JPH03266872A (en) | 1991-11-27 |
| JP2886605B2 JP2886605B2 (en) | 1999-04-26 |
Family
ID=13314339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2066386A Expired - Fee Related JP2886605B2 (en) | 1990-03-16 | 1990-03-16 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2886605B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133935A (en) * | 2007-11-29 | 2009-06-18 | Canon Inc | Image heating device |
-
1990
- 1990-03-16 JP JP2066386A patent/JP2886605B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133935A (en) * | 2007-11-29 | 2009-06-18 | Canon Inc | Image heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2886605B2 (en) | 1999-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |