JPS5848671Y2 - rod heater - Google Patents

rod heater

Info

Publication number
JPS5848671Y2
JPS5848671Y2 JP3076077U JP3076077U JPS5848671Y2 JP S5848671 Y2 JPS5848671 Y2 JP S5848671Y2 JP 3076077 U JP3076077 U JP 3076077U JP 3076077 U JP3076077 U JP 3076077U JP S5848671 Y2 JPS5848671 Y2 JP S5848671Y2
Authority
JP
Japan
Prior art keywords
heater
heating wire
heat
wire
tube
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
Application number
JP3076077U
Other languages
Japanese (ja)
Other versions
JPS53125546U (en
Inventor
恵俊 永野
豊彦 小林
Original Assignee
坂口電熱株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 坂口電熱株式会社 filed Critical 坂口電熱株式会社
Priority to JP3076077U priority Critical patent/JPS5848671Y2/en
Publication of JPS53125546U publication Critical patent/JPS53125546U/ja
Application granted granted Critical
Publication of JPS5848671Y2 publication Critical patent/JPS5848671Y2/en
Expired legal-status Critical Current

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  • Fixing For Electrophotography (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Resistance Heating (AREA)

Description

【考案の詳細な説明】 本考案は複写機等に於て、コピー用紙の定着装置に使用
する棒状ヒーターに関するものである。
[Detailed Description of the Invention] The present invention relates to a rod-shaped heater used in a copy paper fixing device in a copying machine or the like.

従来特に複写機等に於て、コピーの定着装置に使用され
るヒーターは、真空又はガス入り石英ヒーター、マイカ
ヒーター又はシリコンゴムヒーター、その他各種のヒー
ターを使用していたが、これらに使用されるヒーター管
17は、第1図に示す如く、耐熱性を有する内筒15と
外筒16との二重に形成し、この内筒15に発熱線18
Aを捲回しただけであったり、又は第2図に示す如く、
発熱線18Aの過熱による膨張変化を防止するために、
筒体13にラセン状の線溝14を設けて、発熱線18A
を捲回したものを使用していた。
Conventionally, the heaters used in copy fixing devices, especially in copying machines, have been vacuum or gas-filled quartz heaters, mica heaters, silicone rubber heaters, and various other heaters. As shown in FIG. 1, the heater tube 17 is formed into a double layer consisting of a heat-resistant inner tube 15 and an outer tube 16, and a heating wire 18 is connected to the inner tube 15.
It is possible to simply wind A, or as shown in Figure 2,
In order to prevent expansion changes due to overheating of the heating wire 18A,
A spiral wire groove 14 is provided in the cylinder body 13, and the heating wire 18A
I was using a rolled one.

しかし、これらのヒーターのヒーター管17Aに発熱線
18Aを捲回しただけでは、使用中にヒーターの発熱温
度が上昇過熱すると発熱線が膨張変化し、該発熱線のピ
ッチがくろいヒーターの温度むらを生じコピーの仕上り
にむらが生じやすい。
However, simply winding the heating wire 18A around the heater tube 17A of these heaters will cause the heating wire to expand and change when the heater's heating temperature rises during use and overheats, and the pitch of the heating wire will become black, causing temperature unevenness of the heater. Unevenness tends to occur in the finished copy.

更にはヒーター自体も発熱線が露出しているために、発
熱表面積が小さくなる反面、電力密度が大きくなり、そ
のため発熱線の表面温度が高くなり発熱線が切れやすく
長持ちしない等の多くの欠点があった。
Furthermore, since the heating wire of the heater itself is exposed, while the heating surface area becomes smaller, the power density increases, which causes the surface temperature of the heating wire to rise, resulting in many disadvantages such as the heating wire being easily broken and not lasting as long. there were.

本考案は上述の如きかかる欠点を除去し、ヒーターの寿
命を長持ちさせると共に、過熱による発熱線の膨張変化
を防止することのできるヒーターを提供するものである
The present invention eliminates the above-mentioned drawbacks, prolongs the life of the heater, and provides a heater that can prevent the heating wire from expanding and changing due to overheating.

以下本考案について実施例の図面により説明すると、第
1実施例に示す第1ヒーター1は石英、磁器又はガラス
材等の耐熱性を有するヒーター管2の周縁にニクロム線
等の発熱性を有する発熱線3を適宜間隔をもって捲回し
である。
The present invention will be explained below with reference to drawings of embodiments.The first heater 1 shown in the first embodiment has a heat-resistant heater tube 2 made of quartz, porcelain, or glass, and a heat-generating material such as nichrome wire attached to the periphery of the heater tube 2. The wire 3 is wound at appropriate intervals.

4はヒーター管2の周縁に捲回した発熱線3の一部又は
全部に塗布した固定剤で、該固定剤は無機セメント、耐
熱塗料又接着剤等の耐熱効果の高いものを使用する。
Reference numeral 4 denotes a fixing agent applied to part or all of the heating wire 3 wound around the periphery of the heater tube 2. As the fixing agent, a highly heat-resistant material such as inorganic cement, heat-resistant paint, or adhesive is used.

5は複写機(図示せず)に設けた反射板で、該反射板の
中央に第1ヒーター1を位置し、この第1ヒーターの両
端を反射板の両側面に係止碍子9,9′等で係止しであ
る。
Reference numeral 5 denotes a reflector plate provided in a copying machine (not shown). A first heater 1 is located in the center of the reflector plate, and both ends of the first heater are secured to both sides of the reflector plate by insulators 9, 9'. It is locked with etc.

10.10’は第1ヒーター1に捲回した発熱線3のノ
ード線である。
10 and 10' are node lines of the heating wire 3 wound around the first heater 1.

6は第2実施例を示す第2ヒーターで、内管7の周縁に
第1ヒーター1と同様に発熱線3を捲回すると共に、該
発熱線の表面の一部又は全部に無機セメント、耐熱塗料
又は接着剤等の固定剤4を塗布し、更にこの内管7を、
大径に形成した外管8内に挿通すると共に、両端を係止
碍子19.19’で係止しである。
6 is a second heater showing a second embodiment, in which a heating wire 3 is wound around the periphery of an inner tube 7 in the same way as the first heater 1, and part or all of the surface of the heating wire is coated with inorganic cement or heat-resistant A fixing agent 4 such as paint or adhesive is applied, and the inner tube 7 is
It is inserted into the outer tube 8 formed to have a large diameter, and both ends are locked with locking insulators 19 and 19'.

12.12’は第2ヒーター6の内管7に捲回した発熱
線3の両端に圧着スリーブ11.11’を介して引出し
たリード線である。
Reference numerals 12 and 12' denote lead wires drawn out from both ends of the heating wire 3 wound around the inner tube 7 of the second heater 6 via crimp sleeves 11 and 11'.

上述の如く本考案は複写機に於ける定着装置に使用する
ヒーターを示したもので、第1実施例による第1ヒータ
ー1はコピーむらを少なくするために、ヒーターの中央
部より、両端の温度分布を高目にしなければコピー紙面
の温度分布が均一化しないため、ヒーター管2に発熱線
3を捲回する場合、発熱線3のピッチは両端を密とし、
中央部を粗に捲回しなけれは゛ならない。
As mentioned above, the present invention shows a heater used in a fixing device in a copying machine, and the first heater 1 according to the first embodiment has a temperature lower than the center of the heater at both ends to reduce uneven copying. If the distribution is not high, the temperature distribution on the copy paper surface will not be uniform, so when winding the heating wire 3 around the heater tube 2, the pitch of the heating wire 3 should be close at both ends.
The center part must be rolled roughly.

そのために、捲回した発熱線3の表面の一部又は全部に
、固定剤4を塗布することにより、発熱線のピッチの加
熱による変化を防止することができ更には、固定剤4が
、発熱線3のピッチの間に入り、発熱線3に発生した熱
の一部は赤外線となって放射され、他は固定剤に伝導し
て線温を低下させる。
Therefore, by applying the fixing agent 4 to part or all of the surface of the wound heating wire 3, it is possible to prevent the pitch of the heating wire from changing due to heating. Part of the heat generated in the heating wire 3 that enters between the pitches of the wire 3 is radiated as infrared rays, and the rest is conducted to the fixing agent to lower the wire temperature.

即ち、発熱線3の空気との接触面積が拡大された為であ
る。
That is, this is because the contact area of the heating wire 3 with the air has been expanded.

以上の如く、本考案はヒーター管2又は内管7の周縁に
捲回した発熱線3の上面に固定剤4を塗布することによ
り、過熱による発熱線の膨張変化を防止し、均一化した
温度を保つことができると共に、発熱線自体の線温を低
下させることによりヒーターの寿命を長持ちさせ且つ、
ヒーターの温度が早く定着温度に達することができ経済
的で能率的である等の有益なる効果を有するものである
As described above, the present invention prevents the expansion change of the heating wire due to overheating by applying the fixing agent 4 to the upper surface of the heating wire 3 wound around the periphery of the heater tube 2 or the inner tube 7, thereby achieving a uniform temperature. By lowering the temperature of the heating wire itself, the lifespan of the heater can be extended, and
This has beneficial effects such as the heater temperature reaching the fixing temperature quickly and being economical and efficient.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示したものにして第1図は従来
のヒーターの断面図、第2図は第2実施例を示すヒータ
ー管の要部拡大図、第3図は本考案に係る第1実施例を
示す断面図、第4図は要部拡大図、第5図は第2実施例
を示す断面図である。 1は第1ヒーター、2はヒーター管、3は発熱線、4は
固定剤、5は反射板、6は第2ヒーター、7は内管、8
は外管、9,9′は係止碍子、10.10’はリード線
、11.11’は圧着スリーブ、12.12’はリード
線、13は筒体、14は線溝、15は内管、16は外筒
、17Aはヒーター管、18Aは発熱線、19.19は
係止碍子である。
The drawings show an embodiment of the present invention. Fig. 1 is a sectional view of a conventional heater, Fig. 2 is an enlarged view of the main part of a heater tube showing a second embodiment, and Fig. 3 is a diagram according to the present invention. FIG. 4 is an enlarged view of the main parts, and FIG. 5 is a cross-sectional view showing the second embodiment. 1 is the first heater, 2 is the heater tube, 3 is the heating wire, 4 is the fixing agent, 5 is the reflector, 6 is the second heater, 7 is the inner tube, 8
10.10' is the lead wire, 11.11' is the crimping sleeve, 12.12' is the lead wire, 13 is the cylinder, 14 is the wire groove, and 15 is the inner tube. 16 is an outer cylinder, 17A is a heater tube, 18A is a heating wire, and 19.19 is a locking insulator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 石英、磁器又はガラス材等の耐熱性を有するヒーター管
の周縁に、ニクロム線等の発熱性を有する発熱線を捲回
し、該発熱線の一部又は全部に無機セメント、耐熱塗料
又は接着剤等の固定剤を塗布したことを特徴とする棒状
ヒーター
A heat-generating wire such as a nichrome wire is wound around the periphery of a heat-resistant heater tube made of quartz, porcelain, or glass, and part or all of the heat-generating wire is coated with inorganic cement, heat-resistant paint, adhesive, etc. A rod-shaped heater coated with a fixative of
JP3076077U 1977-03-16 1977-03-16 rod heater Expired JPS5848671Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3076077U JPS5848671Y2 (en) 1977-03-16 1977-03-16 rod heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3076077U JPS5848671Y2 (en) 1977-03-16 1977-03-16 rod heater

Publications (2)

Publication Number Publication Date
JPS53125546U JPS53125546U (en) 1978-10-05
JPS5848671Y2 true JPS5848671Y2 (en) 1983-11-07

Family

ID=28881021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3076077U Expired JPS5848671Y2 (en) 1977-03-16 1977-03-16 rod heater

Country Status (1)

Country Link
JP (1) JPS5848671Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676189A (en) * 1979-11-28 1981-06-23 Matsushita Electric Ind Co Ltd Method of manufacturing cartridge heater
WO2009096311A1 (en) * 2008-01-29 2009-08-06 Tounetsu Corporation Dip-type heater

Also Published As

Publication number Publication date
JPS53125546U (en) 1978-10-05

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