JPS59126577A - Fixing roller - Google Patents
Fixing rollerInfo
- Publication number
- JPS59126577A JPS59126577A JP187883A JP187883A JPS59126577A JP S59126577 A JPS59126577 A JP S59126577A JP 187883 A JP187883 A JP 187883A JP 187883 A JP187883 A JP 187883A JP S59126577 A JPS59126577 A JP S59126577A
- Authority
- JP
- Japan
- Prior art keywords
- principal part
- roller
- center
- fixing roller
- shaft
- 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
- G03G15/2053—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電子写真複写様等において、複写用紙上に転写
されたトナー像を定着するために使用する定着ローラに
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing roller used for fixing a toner image transferred onto copy paper in electrophotographic copying and the like.
従来の定着ローラは、第１図に示すように一本の金属パ
イプを絞シ加工によって中央部には太径の主要部１を、
又該主要部１の両外側には細径の軸部２・ ２を設け、
中芯の中空部にはヒーター３を配置するように構成され
ていた。As shown in Fig. 1, a conventional fixing roller has a main part 1 with a large diameter in the center by drawing a metal pipe.
Further, a small diameter shaft portion 2 is provided on both outer sides of the main portion 1,
The heater 3 was arranged in the hollow part of the core.
そして、該定滝ローラは、これを取Ｎけるべき複写機内
の軸受の径に合わせて軸部２．２の外周を切削するのが
一般的であシ、このとき、前記主要部１の幅員が、ロー
ラ収容部の大きさにより制限されている場合には、当該
主要部１の側壁４．４を切削して長さを合わせるように
していた。Generally, the outer periphery of the shaft portion 2.2 of the fixed roller is cut in accordance with the diameter of the bearing in the copying machine to which it is to be installed. However, if this was limited by the size of the roller housing, the side walls 4.4 of the main part 1 were cut to match the length.
しかしながら、前記絞シ加工によって一本の金属パイプ
を太径の主要部１と細径の軸部２．２とに一体成形する
と、主要部１の側壁４．４と軸部２．２とが接する隅部
５．５を第２図に示すように彎曲状に成形してしまうこ
とを免かれず、このような形状に成形したローラに前記
軸部２．２゜側壁４．４の切削加工を行うと、隅部５．
５は第３図に示すように、前記加工による切込％２Ａ。However, when a single metal pipe is integrally formed into the large diameter main part 1 and the small diameter shaft part 2.2 by the drawing process, the side wall 4.4 of the main part 1 and the shaft part 2.2 are It was inevitable that the contacting corner 5.5 would be formed into a curved shape as shown in FIG. If you do this, corner 5.
As shown in FIG. 3, 5 is the depth of cut %2A due to the above processing.
４Ａが深く、該個所の肉厚を舌めて薄くしてしまうので
、応力に対する強度が著しく低下し、従ってこのローラ
を定着時間の短縮のため、肉厚の薄いパイプで造ったシ
すると、前記隅部５．５はロール折れの原因となる欠点
をもっていた。4A is deep and the wall thickness at that point is extremely thin, so the strength against stress is significantly reduced. Therefore, if this roller is made of a thin pipe to shorten the fixing time, the above-mentioned Corner 5.5 had a defect that caused the roll to fold.
本発明は上記従来の定着ローラの欠点を除去するために
なされたものであって、ローラの主要部の側壁と軸部と
が接する隅部を、主要部の中心に向けて入シ込ませるこ
とによって、当該隅部の応力に対する強度を、たとえ前
記軸部並びに側壁の切削加工をしようとも充勿保持でき
るようにした定着ローラを折供することを目的とする。The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional fixing roller, and the present invention has been made by making the corner where the side wall of the main part of the roller and the shaft contact each other move toward the center of the main part. An object of the present invention is to provide a fixing roller that can maintain sufficient strength against stress at the corner even if the shaft and side walls are cut.
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。The present invention will be described in detail below based on embodiments shown in the drawings.
第４図に本発明の定着ローラの一実施例を示す一部断面
正面図である。FIG. 4 is a partially sectional front view showing an embodiment of the fixing roller of the present invention.
中央部の太径の主要部６と該主要部６の内外側の細径の
軸部７．７とを一体成形した中空のローラにおいて、主
要部６の側壁８．８と軸部７．７とが接する隅部９．９
を、主要部６の中心に向けて夫々入シ込み状に構成する
と共に、内芯の中空部にはヒータ１０を配置する。In a hollow roller in which a large-diameter main part 6 at the center and small-diameter shaft parts 7.7 on the inner and outer sides of the main part 6 are integrally molded, the side wall 8.8 of the main part 6 and the shaft part 7.7 Corner 9.9 where
are formed in a recessed manner toward the center of the main portion 6, and a heater 10 is disposed in the hollow portion of the inner core.
以上のように構成する本発明の定着ローラに対し、これ
を切削加工する際のその範囲は、軸部Ｔ１７の場合は軸
端から側壁８．８に面一の個所までであり、又側壁８．
８の場合には隅部９．９の周３、ニーなシ、いずれの場
合においても前記隅部９、ｇＨ−；ｈａ削を免かれ、絞
シ加工した時の肉厚がそのまま促持される。When cutting the fixing roller of the present invention constructed as described above, the cutting range is from the shaft end to a point flush with the side wall 8.8 in the case of the shaft portion T17; ．．
In the case of 8, the circumference 3 of the corner 9.9, the knee edge, in both cases, the corner 9, gH-; Ru.
従って本発明は、定着時間を短縮させるため、ローラの
材料に、たとえ肉厚の薄いパイプを使用したとしても、
隅部９．９の応力に対する強度は低下することがなく、
ロール折れの心配のない定着ローラを提供することがで
きるといった効果がある。Therefore, in the present invention, in order to shorten the fixing time, even if a thin-walled pipe is used for the roller material,
The strength against stress at the corner 9.9 does not decrease,
This has the effect of being able to provide a fixing roller that does not have to worry about roll breakage.
第１図は従来の定着ローラの一部断面正面図、第２図は
同、切削加工前の状態を示す一部拡大断面図、第３図は
同、軸部及び側壁面の切削加工後の状態を示す一部拡大
断面図、第４図は本発明の定着ローラの一部断面正面図
である。
図中６・・φ拳主要部、７・・・・軸部、８・・・・側
壁、９・・・・隅部。Fig. 1 is a partially sectional front view of a conventional fixing roller, Fig. 2 is a partially enlarged sectional view showing the state before cutting, and Fig. 3 is the same after cutting of the shaft and side wall surface. FIG. 4 is a partially enlarged sectional view showing the state, and FIG. 4 is a partially sectional front view of the fixing roller of the present invention. In the figure, 6: main part of the fist, 7: shaft, 8: side wall, 9: corner.
Claims (1)
軸部とを一体成形した中空のローラにおいて、主要部の
側壁と軸部とが接する隅部を、主２要部の中心に向けて
入シ込み状に構成したことを特徴とする定着ローラ。In a hollow roller that is integrally formed with a large-diameter main part in the center and small-diameter shaft parts on both outsides of the main part, the corner where the side wall of the main part and the shaft part touch is called the main two parts. A fixing roller characterized in that it is configured in an indented manner toward the center of the fixing roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP187883A JPS59126577A (en) | 1983-01-10 | 1983-01-10 | Fixing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP187883A JPS59126577A (en) | 1983-01-10 | 1983-01-10 | Fixing roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59126577A true JPS59126577A (en) | 1984-07-21 |
| JPH0153791B2 JPH0153791B2 (en) | 1989-11-15 |
Family
ID=11513812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP187883A Granted JPS59126577A (en) | 1983-01-10 | 1983-01-10 | Fixing roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59126577A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2671348A (en) * | 1951-08-31 | 1954-03-09 | Adamson Stephens Mfg Co | Live shaft idler pulley |
-
1983
- 1983-01-10 JP JP187883A patent/JPS59126577A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2671348A (en) * | 1951-08-31 | 1954-03-09 | Adamson Stephens Mfg Co | Live shaft idler pulley |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0153791B2 (en) | 1989-11-15 |
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