JP3009456B2 - Fixing device - Google Patents
Fixing deviceInfo
- Publication number
- JP3009456B2 JP3009456B2 JP2333808A JP33380890A JP3009456B2 JP 3009456 B2 JP3009456 B2 JP 3009456B2 JP 2333808 A JP2333808 A JP 2333808A JP 33380890 A JP33380890 A JP 33380890A JP 3009456 B2 JP3009456 B2 JP 3009456B2
- Authority
- JP
- Japan
- Prior art keywords
- rib
- film
- force
- regulating
- deviation
- 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 - Fee Related
Links
Landscapes
- Structure Of Belt Conveyors (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Fixing For Electrophotography (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、複写機、レーザービームプリンタ、静電プ
リンタ等の画像形成装置に用いられる定着装置に関する
ものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device used in an image forming apparatus such as a copying machine, a laser beam printer, and an electrostatic printer.
［従来の技術］ 従来、記録紙上のトナー像を定着する手段として、特
開昭63−313182号公報に記載されているように、耐熱性
の定着フィルムを用いた定着方式が知られているが、こ
の方式の定着装置では、薄膜エンドレス状の定着フィル
ムを用いており、そのフィルムをローラ間にかけ渡し
て、テンションをかけて駆動させるため、そのフィルム
の寄りが発生してしまう。[Prior Art] Conventionally, as a means for fixing a toner image on recording paper, a fixing method using a heat-resistant fixing film has been known as described in JP-A-63-313182. In this type of fixing device, a thin endless fixing film is used, and the film is stretched between rollers and driven with tension, so that the film is shifted.
これに対し、定着フィルムの少なくとも片側端部にリ
ブを設け、そのリブを固定部材で規制して、寄りを押さ
える方法が提案されている。On the other hand, there has been proposed a method in which a rib is provided on at least one end of the fixing film, and the rib is regulated by a fixing member to suppress the deviation.
［発明が解決しようとする課題］ しかしながら、上記提案されている方法では、定着フ
ィルムのリブを固定部材で押さえているため、どうして
も、定着フィルムが回転する時には、そのリブの規制面
の振れがあるので、この振れによる横ずれ分、寄りを押
さえる規制力がリブの場所によって大きく変化する。[Problems to be Solved by the Invention] However, in the above-mentioned proposed method, since the ribs of the fixing film are pressed by the fixing member, when the fixing film rotates, the rib restricting surface may run out. Therefore, the amount of lateral displacement due to the deflection and the restricting force for suppressing the deviation greatly vary depending on the location of the rib.
第８図はリブを固定規制部材で押さえた場合の寄り規
制の実験結果の一例であり、リブ一周分の振れによる規
制力の大きな変化が見られる。FIG. 8 shows an example of an experiment result of deviation control when the rib is held down by the fixing restriction member, and a large change in the restriction force due to the deflection of one round of the rib is seen.
このため、規制力がリブの一部分に集中的にかかるこ
とになるため、その部分からリブが破損しやすいという
問題点があった。For this reason, since the restricting force is concentrated on a part of the rib, there is a problem that the rib is easily damaged from that part.
本発明は、上記のような問題点を解決しようとするも
のである。すなわち、本発明は、寄りの規制力が定着フ
ィルムのリブ全周に、ほとんど変化しない安定した寄り
規制を行なえるようにして、リブの破損を防止すること
ができる定着装置を提供することを目的とするものであ
る。The present invention seeks to solve the above problems. That is, an object of the present invention is to provide a fixing device capable of preventing a breakage of a rib by performing a stable shift control in which a shift control force hardly changes over the entire circumference of a rib of a fixing film. It is assumed that.
［課題を解決するための手段］ 上記目的を達成するために、未定着像を担持した記録
材と接し移動するエンドレス状のフィルムと、このフィ
ルムの端部に設けられたリブと、前記フィルムの寄りを
規制するため前記リブと当接する規制部材と、前記規制
部材を前記リブとの当接部側に付勢する付勢手段と、を
有する定着装置において、前記付勢手段の付勢力を測定
するための目盛部と、前記フィルムの寄り力を調整する
調整手段と、を有するようにしたものである。[Means for Solving the Problems] To achieve the above object, an endless film that moves in contact with a recording material carrying an unfixed image, a rib provided at an end of the film, In a fixing device having a regulating member that abuts on the rib for regulating the deviation and an urging unit that urges the regulating member toward the contact portion with the rib, the urging force of the urging unit is measured. And an adjusting means for adjusting the biasing force of the film.
［作用］ 本発明によれば、付勢手段の付勢力を測定するための
目盛部を有するので、即座にフィルムの寄り力を知るこ
とができ、寄り力調整手段により寄り力を規格値内に調
整し安定した寄り規制を行うことができる。[Operation] According to the present invention, since there is a scale for measuring the urging force of the urging means, the deviation force of the film can be immediately known, and the deviation force is controlled within the standard value by the deviation force adjusting means. It is possible to adjust and stabilize the deviation.
［実 施 例］ 第１図は本発明の第１実施例を示した断面図である。Embodiment FIG. 1 is a sectional view showing a first embodiment of the present invention.
同図において、１は加熱体、２は定着フィルムであ
り、該フィルム２はポリイミド、ポリエーテルイミド、
PES等の耐熱性樹脂の厚さ20μのフィルムの片面にPTFE
等の離型層がコートされている。該フィルム２の総厚は
一般的に50μ以下が好ましい。３は該フィルム２の片側
（手前）端部外周に設けられたリブであり、該フィルム
２と同材質で一体成形したものでも、後から摺動性のよ
い別材質、たとえば、ウレタンゴムやシリコンゴム等の
リブを接着等により成形したものでもよい。In the figure, 1 is a heating element, 2 is a fixing film, and the film 2 is polyimide, polyetherimide,
PTFE on one side of a 20μ thick film of heat resistant resin such as PES
And the like. Generally, the total thickness of the film 2 is preferably 50 μm or less. Reference numeral 3 denotes a rib provided on the outer periphery of one end (front side) of the film 2, which may be integrally formed of the same material as the film 2 or may be made of another material having good slidability, for example, urethane rubber or silicon. Ribs such as rubber may be formed by bonding or the like.
前記定着フィルム２は駆動ローラ４とテンションロー
ラ５の間にかけ渡され、加熱体１と合わせてフィルム搬
送路を形成している。また定着フィルム２は付勢手段８
（９）によりテンションローラ軸受６（７）を介してテ
ンションローラ５を矢印Ａの方向に付勢することによ
り、テンションを与えられ、駆動ローラ４により矢印Ｂ
の方向に搬送される。The fixing film 2 is stretched between a driving roller 4 and a tension roller 5 and forms a film transport path together with the heating element 1. The fixing film 2 is provided with an urging means 8.
The tension is given by urging the tension roller 5 in the direction of arrow A via the tension roller bearing 6 (7) according to (9), and the driving roller 4 applies the arrow B
Transported in the direction of
ここで、駆動ローラ４は定着フィルム２の搬送を確実
に行なうため、鉄等の芯金の表面にシリコム等のコーテ
ィング層を設けてある。Here, the drive roller 4 is provided with a coating layer such as silico on the surface of a core metal such as iron in order to surely transport the fixing film 2.
また10は加圧ローラであり、シリコンゴム等の離型性
のよいゴム弾性層を有し、定着に必要な力で定着フィル
ム２を加熱体１に加圧している。そして、加圧ローラ10
の両端は定着フィルム２に従動して回転するように、図
示されていない軸受により支持される。Reference numeral 10 denotes a pressure roller, which has a rubber elastic layer of silicon rubber or the like with good releasability, and presses the fixing film 2 against the heating element 1 with a force required for fixing. And the pressure roller 10
Are supported by bearings (not shown) so as to rotate following the fixing film 2.
前記加熱体１は耐熱性樹脂からなる断熱部材11を介し
て前記加圧力に耐えるような剛性を有するスティ12上に
固定されている。また13は入口ガイド、14は分離ガイ
ド、15は上部ローラ15aと下部ローラ15bとからなる排紙
ローラである。The heating element 1 is fixed on a stay 12 having rigidity to withstand the pressing force via a heat insulating member 11 made of a heat-resistant resin. Reference numeral 13 denotes an entrance guide, reference numeral 14 denotes a separation guide, and reference numeral 15 denotes a paper discharge roller including an upper roller 15a and a lower roller 15b.
第２図は第１図の矢印Ｊからみた矢視図であり、リブ
３を規制するための規制部材16が２本の固定軸17,18を
通して駆動ローラ４の外周に沿ってリブ３よりベルト
（定着フィルム２）中央側に設置されている。そして、
規制部材16は固定軸17,18に沿って滑らかに動くことが
でき、また付勢手段19,20によって矢印Ｃの方向へ付勢
され、リブ３の規制面に常に接触する構成になってい
る。FIG. 2 is a view taken in the direction of the arrow J in FIG. 1, and a restricting member 16 for restricting the rib 3 passes through the two fixed shafts 17 and 18 along the outer periphery of the drive roller 4 so that the belt 3 (Fixing film 2) Installed on the center side. And
The regulating member 16 can move smoothly along the fixed shafts 17 and 18 and is urged in the direction of the arrow C by the urging means 19 and 20 so as to always contact the regulating surface of the rib 3. .
定着フィルム２は付勢手段8,9による付勢力を調節す
ることなどにより、搬送時、常に、矢印Ｄの方向に寄り
力が働くように構成されている。The fixing film 2 is configured such that a biasing force always acts in the direction of the arrow D during conveyance by adjusting the urging force of the urging means 8, 9 or the like.
定着フィルム２の搬送時、矢印Ｄの方向に寄り力が働
くが、リブ３が規制部材16に常に摺動規制されて、寄り
力と付勢手段19,20による付勢力とが均合った状態で寄
りが停止する。また定着フィルム２の搬送時、リブ３の
規制面の振れが発生するが、その振れによる規制面の横
ずれは、規制部材16が付勢手段8,9により付勢されてい
ることにより、ほとんど吸収され、ほぼ一定の規制力で
リブ３の全周を規制するため、安定した寄り規制を行な
うことができる。When the fixing film 2 is conveyed, a biasing force acts in the direction of arrow D, but the rib 3 is always slidably regulated by the regulating member 16 so that the biasing force and the urging forces by the urging means 19 and 20 are balanced. The stop stops at. Further, when the fixing film 2 is transported, the regulating surface of the rib 3 oscillates. In addition, since the entire circumference of the rib 3 is regulated by a substantially constant regulating force, stable deviation regulation can be performed.
このとき、規制部材16の少なくともリブ３と摺動する
面は、摺動性のよいポリアセタールやふっ素樹脂等の材
料であることが望ましい。At this time, it is desirable that at least the surface of the regulating member 16 that slides on the rib 3 is made of a material such as polyacetal or fluororesin having good slidability.
上記構成において、図示されていない転写材は入口ガ
イド13上を通り、定着フィルム２と加圧ローラ10の間に
送り込まれ、転写材上のトナー像は、加熱体１と加圧ロ
ーラ10による熱と圧により加熱定着し、分離ガイド14を
経て排紙ローラ15により装置外へ排出される。In the above configuration, a transfer material (not shown) passes over the entrance guide 13 and is fed between the fixing film 2 and the pressure roller 10, and the toner image on the transfer material is heated by the heating body 1 and the pressure roller 10. Then, the sheet is heated and fixed by the pressure, and is discharged to the outside of the apparatus by the discharge roller 15 via the separation guide 14.
以上のように、定着フィルム２の端部に設けらてたリ
ブ３を付勢手段19,20を介して規制部材16で規制するこ
とにより、定着フィルムの回転中のリブ規制面の振れを
吸収し、ほぼ一定の規制力でリブ全周を規制するため、
安定した寄り規制を行なうことができる。As described above, the rib 3 provided at the end of the fixing film 2 is regulated by the regulating member 16 via the urging means 19 and 20, so that the deflection of the rib regulating surface during rotation of the fixing film is absorbed. In order to regulate the entire circumference of the rib with almost constant regulating power,
Stable departure control can be performed.
またリブ３に集中的な規制力が加わることがないの
で、耐久性が向上する。In addition, since no intensive regulation force is applied to the rib 3, the durability is improved.
第９図は第１図および第２図に示した構成による寄り
規制の実験結果を示したもので、リブ一周分の振れによ
る規制力の変化は、ほとんどない。FIG. 9 shows an experimental result of the deviation control by the configuration shown in FIGS. 1 and 2, and there is almost no change in the restriction force due to the deflection of one round of the rib.
第３図は本発明の第２実施例を示した断面図であり、
第４図は第３図の矢印Ｋからみた矢視図である。FIG. 3 is a sectional view showing a second embodiment of the present invention,
FIG. 4 is a view as seen from the arrow K in FIG.
同図において、21は規制台であり、駆動ローラ４の外
周に沿ってリブ３よりベルト（定着フィルム２）中央側
に配置され、図示しない定着枠体に固定されている。22
は前記リブ３の規制面と従動回転する回転体である規制
部材であり、付勢手段23を介して規制台21に取付けられ
ている。規制部材22は規制台21のＵ溝に沿って自由にス
ライドができ、付勢手段23によって矢印Ｅの方向へ付勢
され、常にリブ３の規制面に接触する構成になってい
る。In the figure, reference numeral 21 denotes a regulation table, which is arranged on the center side of the belt (fixing film 2) with respect to the ribs 3 along the outer periphery of the drive roller 4, and is fixed to a fixing frame (not shown). twenty two
Reference numeral denotes a regulating member which is a rotating body that rotates following the regulating surface of the rib 3, and is attached to the regulating table 21 via the urging means 23. The restricting member 22 can slide freely along the U-groove of the restricting table 21, is urged by the urging means 23 in the direction of arrow E, and is always in contact with the restricting surface of the rib 3.
定着フィルム２は付勢手段8,9による付勢力を調節す
ることなどにより、搬送時、常に矢印Ｄの方向に寄り力
が働くように構成されているが、リブ３の規制面を常に
規制部材22が従動回転しながら規制するため、摺擦抵抗
が小さく、リブ３に無理な力をかけることなく、寄り力
と、付勢手段23による付勢とが均合った状態で寄りが停
止する。また定着フィルム２の搬送時、リブ３の規制面
の振れが発生するが、その振れによる規制面の横ずれ
は、規制部材22が付勢手段23により付勢されることによ
って、ほとんど吸収され、ほぼ一定の規制力でリブ全周
を規制するため、安定した寄り規制を行なうことができ
る。The fixing film 2 is configured so that a biasing force is always exerted in the direction of arrow D during conveyance by adjusting the biasing force of the biasing means 8 and 9 or the like. Since the rotation is regulated by the driven rotation of the ribs 23, the sliding friction is small, and the deviation is stopped in a state where the deviation force and the urging by the urging means 23 are balanced without applying an excessive force to the rib 3. Further, when the fixing film 2 is conveyed, the regulation surface of the rib 3 oscillates. Since the entire circumference of the rib is regulated with a constant regulating force, stable deviation regulation can be performed.
このとき、規制台21は少なくとも規制部材22が摺動回
転している面は、摺動性のよいポリアセタールやふっ素
樹脂等の材料、規制部材22は摺動性のよい樹脂か鉄等の
金属材料であることが望ましい。At this time, the regulating table 21 has at least a surface on which the regulating member 22 is slid and rotated, and a material such as polyacetal or fluororesin having good slidability, and the regulating member 22 is a resin material having good slidability or a metal material such as iron. It is desirable that
以上のように、定着フィルム２の端部に設けられたリ
ブ３を、付勢手段23を介した回転体である規制部材22で
規制することにより、定着フィルム２の搬送中のリブ規
制面の振れを吸収し、リブ３に無理な力をかけることな
く、ほぼ一定の規制力でリブ全周を規制するため、安定
した寄り規制を行なうことができる。しかも、リブ３に
集中的な規制力が加わることがないので、耐久性が大幅
に向上する。As described above, the rib 3 provided at the end of the fixing film 2 is regulated by the regulating member 22 which is a rotating body via the urging means 23, so that the rib regulating surface during the conveyance of the fixing film 2 is adjusted. Since the vibration is absorbed and the entire circumference of the rib is regulated with a substantially constant regulating force without exerting an excessive force on the rib 3, stable deviation regulation can be performed. In addition, since no concentrated regulating force is applied to the rib 3, the durability is greatly improved.
第５図は本発明の第３実施例を示した断面図であり、
第６図は第５図の矢印Ｌからみた矢視図である。FIG. 5 is a sectional view showing a third embodiment of the present invention,
FIG. 6 is a view as seen from the arrow L in FIG.
同図において、28および29は規制支板であり、それぞ
れ固定軸17,18,24,25を通して駆動ローラ４の外周に沿
ってリブ３およびリブ32よりフィルム中央側に設置され
ており、それぞれ固定軸17,18,24,25に沿って滑らかに
動くことができる。また規制支持28および29は、それぞ
れ付勢手段19,20,26,27によって矢印Ｆおよび矢印Ｇの
方向へ付勢され、規制支板28および29に、それぞれ軸支
された回転体である規制部材30および31は、常にリブ３
およびリブ32の規制面に接触する構成になっている。In the same figure, reference numerals 28 and 29 denote regulating support plates, which are mounted on the center of the film from the ribs 3 and 32 along the outer periphery of the drive roller 4 through fixed shafts 17, 18, 24 and 25, respectively. It can move smoothly along the axes 17,18,24,25. Further, the regulating supports 28 and 29 are urged in the directions of arrows F and G by urging means 19, 20, 26 and 27, respectively, and are regulating bodies which are rotatably supported by regulating support plates 28 and 29, respectively. Members 30 and 31 are always rib 3
And the rib 32 is in contact with the regulating surface.
定着フィルム２の搬送時、寄りが発生し、矢印ＨとＩ
のどちらかの方向に該フィルム２がずれても、リブ３お
よびリブ32の規制面（フィルム中央側の側面）を常に規
制部30および31が従動回転しながら規制するため、リブ
３とリブ32に無理な力をかけることなく、寄り力と付勢
力とが均合った状態で寄りが停止する。また定着フィル
ム２の搬送時のリブ３およびリブ32の規制面の振れば付
勢手段19,20および26,27により付勢されることにより、
ほとんど吸収され、安定した寄り規制を行なうことがで
きる。When the fixing film 2 is transported, shift occurs, and arrows H and I
Even if the film 2 is displaced in either direction, the regulating surfaces (side surfaces on the center side of the film) of the ribs 3 and 32 are always regulated while the regulating portions 30 and 31 are driven to rotate. The leaning stops in a state where the leaning force and the biasing force are balanced without applying excessive force to the vehicle. When the regulating surfaces of the ribs 3 and the ribs 32 are swung during the conveyance of the fixing film 2, the urging means 19, 20 and 26, 27
Almost absorbed, and stable deviation control can be performed.
さらに、定着フィルム２の搬送時、該フィルム２が薄
膜なため、フィルム中央部にたるみがあると、発生する
寄り力によって該フィルム２の折り返しによる皺が発生
することがあるが、本実施例においては、リブ３および
リブ32の規制面が規制部材30,31から常に付勢力を受け
ているため、該フィルム２は常に張力を受けた状態で搬
送されるため、上記問題は起こらず、安定したフィルム
搬送を行なうことができる。Further, when the fixing film 2 is transported, since the film 2 is thin, if there is a slack in the center of the film, wrinkles due to folding of the film 2 may occur due to the generated biasing force. The above-mentioned problem does not occur because the film 2 is always transported under tension because the regulating surfaces of the ribs 3 and the ribs 32 are constantly receiving the urging force from the regulating members 30 and 31. Film transport can be performed.
このように、定着フィルム２の両端部に設けられたリ
ブ3,32を、それぞれ付勢手段19,20、26,27を介した規制
支板28,29に軸支された回転体である規制部材30,31で規
制することにより、定着フィルム２の搬送中のリブ規制
面の振れを吸収し、リブ3,32に無理な力をかけることな
く、安定した寄り規制を行なうことができる。As described above, the ribs 3 and 32 provided at both ends of the fixing film 2 are regulated by the rotating body which is rotatably supported by the regulating support plates 28 and 29 via the urging means 19, 20, 26 and 27, respectively. By regulating with the members 30 and 31, the deflection of the rib regulating surface during the conveyance of the fixing film 2 is absorbed, and stable deviation can be regulated without applying excessive force to the ribs 3 and 32.
またフィルム搬送時、常に張力を受けた状態で搬送さ
れるため、搬送時の定着フィルム２自体の折り返しおよ
び皺等が起こらず、安定した搬送が行なえる。In addition, since the film is always conveyed under tension while being conveyed, the fixing film 2 itself does not fold or wrinkle during conveyance, and can be stably conveyed.
つまり、この実施例によれば、リブ3,32および定着フ
ィルム２の両方の耐久性が向上する。That is, according to this embodiment, the durability of both the ribs 3 and 32 and the fixing film 2 is improved.
第７図は本発明の第４実施例を示した平面図である。 FIG. 7 is a plan view showing a fourth embodiment of the present invention.
同図において、33は規制部材であり、付勢手段19,20
によって矢印Ｃの方向へ付勢され、リブ３の規制面に接
触する構成になっている。この規制部材33には、目盛が
刻んであり、付勢手段19,20であるばねの長さが、概
略、測定できる構成になっている。In the figure, reference numeral 33 denotes a regulating member, which is a biasing means 19, 20.
Urged in the direction of arrow C to come into contact with the regulating surface of the rib 3. The regulating member 33 has a graduation so that the lengths of the springs as the urging means 19 and 20 can be roughly measured.
定着フィルム２の搬送時、付勢手段8,9の調節によ
り、矢印Ｄの方向に寄り力が働くが、リブ３が規制部材
33に規制され、寄り力と付勢手段19,20による付勢力と
が均合った状態で寄りが停止する。また定着フィルム２
の搬送時のリブ３の規制面の振れも規制部材33が付勢手
段8,9により付勢されていることによって、ほとんど吸
収され、安定した寄り規制を行なうことができる。When the fixing film 2 is transported, a biasing force acts in the direction of arrow D by adjusting the urging means 8 and 9, but the rib 3 is
33, the leaning is stopped in a state where the leaning force and the biasing force of the biasing means 19, 20 are balanced. Fixing film 2
The deflection of the regulating surface of the rib 3 during the conveyance is almost absorbed by the regulating member 33 being urged by the urging means 8 and 9, so that the deviation can be stably regulated.
ところで、規制部材33には目盛が刻んであるため、寄
りが停止した状態での付勢手段19,20のばねの長さを測
定できる。したがって、概略その時の寄り力を即座に知
ることが可能なため、定着器の生産時に必要な寄り力調
整工程において、付勢手段19,20である該ばねの長さか
ら、付勢手段8,9を調節するとか、又は偏心軸受等を用
いて駆動ローラやテンションローラの傾きを変化させる
という簡単な方法によって寄り力を規格値内に調整する
ことができる。By the way, since the regulation member 33 has a graduation, it is possible to measure the length of the springs of the urging means 19 and 20 in the state where the deviation is stopped. Therefore, since it is possible to immediately know the deviation force at that time, in the deviation force adjustment step necessary during the production of the fixing device, the urging means 8, 20 is determined from the length of the springs which are the urging means 19, 20. The deviation can be adjusted to a standard value by adjusting the angle 9 or by changing the inclination of the driving roller or the tension roller using an eccentric bearing or the like.
以上のように、定着フィルム２の端部に設けられたリ
ブ３を、付勢手段19,20を介した目盛付きの規制部材33
で規制することにより、寄り力と付勢力が均合った寄り
が停止した状態の寄り力を概略知ることができ、定着器
の生産時に必要な寄り力調整を簡単な方法で行なうこと
ができる。As described above, the rib 3 provided at the end of the fixing film 2 is connected to the regulating member 33 with the scale via the urging means 19 and 20.
In this way, the deviation force when the deviation force and the urging force are balanced can be roughly known, and the deviation force adjustment required during the production of the fixing device can be performed by a simple method.
［発明の効果］ 本発明によれば、付勢手段の付勢力を測定するための
目盛部を有するので、即座にフィルムの寄り力を知るこ
とができ、寄り力調整手段により寄り力を規格値内に調
整し安定した寄り規制を行うことができる効果が得られ
る。[Effects of the Invention] According to the present invention, since there is a graduation for measuring the urging force of the urging means, the deviation force of the film can be immediately known, and the deviation force is determined by the deviation force adjusting means. The effect of being able to adjust within and perform stable deviation control is obtained.
第１図は本発明の第１実施例を示した断面図、第２図は
第１図の矢印Ｊからみた右上視図、第３図は本発明の第
２実施例を示した断面図、第４図は第３図の矢印Ｋから
みた右上視図、第５図は本発明の第３実施例を示した断
面図、第６図は第５図の矢印Ｌからみた右上視図、第７
図は本発明の第４実施例を示した右上視図、第８図は従
来の技術による規制力の変化を示した説明図、第９図は
第１図の定着装置による規制力の変化を示した説明図で
ある。 １……加熱体、２……定着フィルム ３……リブ、４……駆動ローラ ５……テンションローラ、10……加圧ローラ 16……規制部材、19,20……付勢手段 22……規制部材、23……付勢手段 26,27……付勢手段、30,31……規制部材 32……リブ、33……規制部材FIG. 1 is a cross-sectional view showing a first embodiment of the present invention, FIG. 2 is a top right view seen from arrow J in FIG. 1, FIG. 3 is a cross-sectional view showing a second embodiment of the present invention, FIG. 4 is a top right view as seen from arrow K in FIG. 3, FIG. 5 is a sectional view showing a third embodiment of the present invention, FIG. 6 is a top right view as seen from arrow L in FIG. 7
FIG. 8 is a top right view showing a fourth embodiment of the present invention, FIG. 8 is an explanatory view showing a change in the regulating force according to the conventional technique, and FIG. 9 is a diagram showing a change in the regulating force by the fixing device in FIG. FIG. DESCRIPTION OF SYMBOLS 1 ... Heating body, 2 ... Fixing film 3 ... Rib, 4 ... Driving roller 5 ... Tension roller, 10 ... Pressurizing roller 16 ... Regulating member, 19,20 ... Biasing means 22 ... Regulating member, 23 ... urging means 26, 27 ... urging means, 30, 31 ... regulating member 32 ... rib, 33 ... regulating member
Claims (1)
エンドレス状のフィルムと、このフィルムの端部に設け
られたリブと、前記フィルムの寄りを規制するため前記
リブと当接する規制部材と、前記規制部材を前記リブと
の当接部側に付勢する付勢手段と、を有する定着装置に
おいて、 前記付勢手段の付勢力を測定するための目盛部と、前記
フィルムの寄り力を調整する調整手段と、を有すること
を特徴とする定着装置。An endless film that moves in contact with a recording material bearing an unfixed image, a rib provided at an end of the film, and a regulating member that contacts the rib to regulate a deviation of the film. And a biasing unit for biasing the regulating member toward the abutting portion with the rib. A scale unit for measuring a biasing force of the biasing unit, and a biasing force of the film. And an adjusting means for adjusting the temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2333808A JP3009456B2 (en) | 1990-11-30 | 1990-11-30 | Fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2333808A JP3009456B2 (en) | 1990-11-30 | 1990-11-30 | Fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04204680A JPH04204680A (en) | 1992-07-27 |
| JP3009456B2 true JP3009456B2 (en) | 2000-02-14 |
Family
ID=18270186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2333808A Expired - Fee Related JP3009456B2 (en) | 1990-11-30 | 1990-11-30 | Fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3009456B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101316798B1 (en) * | 2011-12-08 | 2013-10-11 | 에스엠씨 가부시키 가이샤 | Tooth-skipping prevention mechanism for driving force transmission belt |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6118742B2 (en) * | 2014-02-28 | 2017-04-19 | 京セラドキュメントソリューションズ株式会社 | Fixing apparatus and image forming apparatus |
-
1990
- 1990-11-30 JP JP2333808A patent/JP3009456B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101316798B1 (en) * | 2011-12-08 | 2013-10-11 | 에스엠씨 가부시키 가이샤 | Tooth-skipping prevention mechanism for driving force transmission belt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04204680A (en) | 1992-07-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |