JPS5912536A - Method for manufacturing heater for indirectly heated cathode - Google Patents
Method for manufacturing heater for indirectly heated cathodeInfo
- Publication number
- JPS5912536A JPS5912536A JP12047182A JP12047182A JPS5912536A JP S5912536 A JPS5912536 A JP S5912536A JP 12047182 A JP12047182 A JP 12047182A JP 12047182 A JP12047182 A JP 12047182A JP S5912536 A JPS5912536 A JP S5912536A
- Authority
- JP
- Japan
- Prior art keywords
- heater
- mandrel
- sleeve
- die
- indirectly heated
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/08—Manufacture of heaters for indirectly-heated cathodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術的分野〕
本発明は傍熱形陰極用ヒータの製造方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for manufacturing an indirectly heated cathode heater.
陰極線管例えばカラー受像管に使用される傍熱形陰極に
は傍熱形陰極用ヒータが使用されている。An indirectly heated cathode heater is used in an indirectly heated cathode used in a cathode ray tube, such as a color picture tube.
次にこの傍熱形陰極用ヒータの一例を第１図に示す。Next, an example of this indirectly heated cathode heater is shown in FIG.
即ち、所定長さのタングステン線またはレニウム入りタ
ンゲスガン線・を後述する巻線装置によりコイル部（２
）及び脚部（３）からなる傍熱形陰極用ヒータ（１）を
形成し、このコイル部（２）及び脚部（３）の一部まで
アルミナなどの絶縁部材を塗布すると共に脚部（３）を
ラグに溶接し、頂部に基体金属が嵌着された陰極スリー
ブ内に挿入され、ラグを介して電流を流し基体金属上に
被着形成された熱電子放射物質から熱電子を放射するよ
うになっている、次にこの様な傍熱形陰極用ヒータの巻
線装置を第２図及第３図により説明する。That is, a predetermined length of tungsten wire or rhenium-containing tungsten wire is wound into a coil portion (2
) and legs (3), an insulating material such as alumina is applied to part of the coil part (2) and legs (3), and the legs (3) are coated with an insulating material such as alumina. 3) is welded to a lug and inserted into a cathode sleeve with a base metal fitted on the top, and a current is passed through the lug to emit thermoelectrons from the thermionic emitting material deposited on the base metal. Next, a winding device for such an indirectly heated cathode heater will be explained with reference to FIGS. 2 and 3.
即ち、直径方向の対向側面に設けられた第１の位置き′
め部（１１１）（１１２）が突出形成された円形通孔部
０２１を有するダイ（１３＋と、この円形通孔部θ２と
同軸上にそれぞれ設けられた第２の位置き゛め部（１４
，）（１４，） の突出形成された円筒状のスリーブ０
９及び、このスリーブ（１５）に滑動自在に設けられる
と共に頂部にヒータ部材支持用の凹溝部０７）が設けら
れたマンドレル（１６１から構成されている。That is, the first position ' provided on the diametrically opposite side surface
A die (13+) having a circular through hole 021 with protruding holes (111, 112), and a second positioning part (14) provided coaxially with the circular through hole θ2.
,)(14,) protruding cylindrical sleeve 0
9, and a mandrel (161) slidably provided on the sleeve (15) and having a concave groove portion 07 for supporting a heater member at the top.
次にこのような巻線装置による従来の傍熱形陰極用ヒー
タの製造方法を第４図乃至第６図により説明する。Next, a method of manufacturing a conventional indirectly heated cathode heater using such a winding device will be explained with reference to FIGS. 4 to 6.
先ず第４図に示すようにダイ０３上に所定長さのヒータ
素材０υを載置し、マンドレル０６）の凹溝部（１７）
にヒータ素材（２Ｉ）の中心を挾み込む。この時スリー
ブ０５）はダイ（１３１よりやや島めの位置に保持され
ている。First, as shown in Fig. 4, a heater material 0υ of a predetermined length is placed on the die 03, and the concave groove part (17) of the mandrel 06) is placed.
Insert the center of the heater material (2I) between the two. At this time, the sleeve 05) is held at a position slightly more island than the die (131).
次に第５図に示すようにスリーブ（１５ｊはその１１に
してマンドレル（Ｌ６）を所定ピッチで回転下降し、第
６図に示すように所定ターンのコイル部（２湯を形成す
る。Next, as shown in FIG. 5, the sleeve (15j is 11) and the mandrel (L6) is rotated and lowered at a predetermined pitch to form a coil portion (two hot metals) having a predetermined turn as shown in FIG.
次にマンドレル（１６）及びスリーブα（ト）を下降し
ヒータ素側（２１）をスリーブ（１９とダイ（１３１間
の隙間で絞り込むようにして脚部（至）を形成し、傍熱
形陰極用ヒータを完成する。Next, the mandrel (16) and the sleeve α (g) are lowered, and the heater element side (21) is narrowed down in the gap between the sleeve (19) and the die (131) to form the legs (to), and the indirectly heated cathode Complete the heater for use.
然るに前述した製造方法によれば図を見てもわが勺よう
にヒータ素材ｅυが巻き込まれる際、たえず直角方向に
曲げられ特にダイα■の上面にすれながら挿入されてい
くことになり、コイル部（２２に加えられる負荷が大き
くなり、ヒータ素材（２１）の断線の主。要因となって
いる。特に第１図に示すようなダブルヘリカル形コイル
では製造中のヒータ素材ｅυに歪が残り、出来上った陰
極線管用ヒータは第８図に示すように脚部（ハ）の曲げ
不足や第９図に示すように脚部（２漠の曲げ過ぎなどの
不良が発生し、後工程で成形しなければならないし、コ
イル部（２擾の歪によりヒータの加熱時、絶縁部材の剥
離や、タッチ不良が発生し易い問題点があった。However, according to the manufacturing method described above, when the heater material eυ is rolled up as shown in the figure, it is constantly bent in the right angle direction and is inserted while rubbing against the upper surface of the die α■, which results in the coil part being inserted. (The load applied to 22 becomes large, which is the main cause of disconnection of the heater material (21). Especially in the case of double helical coils as shown in Fig. 1, distortion remains in the heater material eυ during manufacture. The completed cathode ray tube heater had defects such as insufficient bending of the legs (C) as shown in Figure 8 and excessive bending of the legs (2) as shown in Figure 9. Moreover, due to the distortion of the coil section (2 degrees), there was a problem in that the insulating member was likely to peel off when the heater was heated, and touch failures were likely to occur.
本発明は前記従来の諸問題に鑑みなされたものでありコ
イル部の歪や脚部の曲げ不足、曲げ過ぎなどの不良がな
い品位の良好な傍熱形陰極用ヒータを得ることが可能な
傍熱形陰極用ヒータの製造方法を提供することを目的と
している。The present invention has been made in view of the above-mentioned conventional problems, and it is possible to obtain an indirectly heated cathode heater of good quality without defects such as distortion of the coil part, insufficient bending of the leg part, or excessive bending of the leg part. The object of the present invention is to provide a method for manufacturing a heater for a heated cathode.
督採発明はダイ上にヒータ素材を載置した後、マンドレ
ルと共にスリーブをダイの中にヒータ素材がほぼスリー
ブの外周に沿うようにはＮＵ字状に折曲したのちマンド
レルを所定ピッチで回転下降し所定ターンのコイル部を
形成したのちスリーブとマンドレルを下降し、脚部を形
成するようにしたことを特徴としており、コイル部の形
成時の歪や断線、脚部の曲は不足や曲げ過ぎ不良のない
品位の良好な傍熱形陰極用ヒータを得ることが可能な傍
熱形陰極用ヒータの製造方法である。The invention involves placing the heater material on the die, bending the sleeve along with the mandrel into the die in an NU shape so that the heater material almost follows the outer circumference of the sleeve, and then rotating the mandrel down at a predetermined pitch. After forming the coil part with a predetermined turn, the sleeve and mandrel are lowered to form the leg parts, which prevents distortion or breakage during the formation of the coil part, and insufficient or excessive bending of the leg part. This is a method for manufacturing an indirectly heated cathode heater, which makes it possible to obtain an indirectly heated cathode heater of good quality and no defects.
次に本発明の傍熱形陰極用ヒータの製造方法の一実施例
を第１０図乃至第１４図により説明する。Next, an embodiment of the method for manufacturing an indirectly heated cathode heater of the present invention will be described with reference to FIGS. 10 to 14.
図中従来と同一符号は同一部を示す。In the figure, the same reference numerals as in the prior art indicate the same parts.
先ず第１０図に示すようにダイ０３）上に所定長さのヒ
ータ素材ｒ３υを載置し、マンドレルＱＧ）の凹溝部卸
にヒータ素材Ｇｌ）の中央部を挿入する。この時メスリ
ーブ（１つはダイ０３）よりやや高めの位置に保持され
ている。First, as shown in FIG. 10, a heater material r3υ of a predetermined length is placed on the die 03), and the center portion of the heater material Gl) is inserted into the groove of the mandrel QG). At this time, the female sleeves (one is held at a slightly higher position than the die 03).
次に本実施例の主眼点である第１１図を説明する。Next, FIG. 11, which is the main point of this embodiment, will be explained.
即ち、スリーブ（ｌ！１９及びマンドレルαｅをそのま
まダイＯＪにヒータ素材Ｇυがスリーブ０９の軸にほぼ
沿うＵ字状になる１で挿入する。That is, the sleeve (1!19) and the mandrel αe are inserted into the die OJ as they are at a position 1 in which the heater material Gυ becomes U-shaped substantially along the axis of the sleeve 09.
次に第１２図に示すようにスリーブ０５）はそのままに
してマンドレルαｅを所定ピッチで回転下降し、第１３
図に示すように所定ターンのコイル部（３２を形成する
。Next, as shown in FIG. 12, the mandrel αe is rotated and lowered at a predetermined pitch while leaving the sleeve 05) as it is.
As shown in the figure, a coil portion (32) having a predetermined turn is formed.
次にマンドレル（１０及びスリーブ（１５）を下降しヒ
ータ素材（３１）をスリーブ０９とダイ０９間の隙間で
絞り込むようにして脚部（２）を形成し傍熱形陰極用ヒ
ータを完成する。Next, the mandrel (10 and sleeve (15) are lowered and the heater material (31) is squeezed into the gap between the sleeve 09 and the die 09 to form the leg portions (2), thereby completing the indirectly heated cathode heater.
本実施例の製造方法によれば傍熱形陰極用ヒー □り
のコイル部ｏ２を形成する時点からヒータ素材６υはス
リーブに沿ってＵ字状に折曲されているので従来のよう
にヒータ素材（２１）が巻き込まれる際、たえず直角方
向に曲けられ、特にダイＱ３１の上面にすれながら挿入
されていくことがなくコイルＳθカに加えられる負荷が
極めて少なく、ヒータ素材の断線や、歪が発生すること
がないので出来上った傍熱形陰極用ヒータは極めて品位
が良好で脚部（晒の曲げ不足や曲げ過き゛などがほとん
どなくなり、成形工程がいらなくなるし、ヒータの加熱
時、絶縁部材の剥離やタッチ不良も発生しない利点があ
る。According to the manufacturing method of this embodiment, the heater material 6υ is bent into a U-shape along the sleeve from the time of forming the coil portion o2 of the indirectly heated cathode heater. When (21) is wound up, it is constantly bent in the right angle direction, and the load applied to the coil Sθ is extremely small because it is not inserted while rubbing against the top surface of the die Q31, and there is no possibility of disconnection or distortion of the heater material. Since this does not occur, the finished indirectly heated cathode heater has extremely high quality, and there is almost no under- or over-bending of the legs (bleaching), eliminating the need for a molding process, and when heating the heater, insulation is required. This has the advantage that peeling of parts and poor touch do not occur.
前記実施例は第２図及び第３図に示す巻線装置を使用し
たが、これに限定されるものではないしまた傍熱形陰極
用ヒータもダブルヘリカル形コイルに限定されないこと
は云うまでもない。Although the above embodiment used the winding device shown in FIGS. 2 and 3, it is not limited to this, and it goes without saying that the indirectly heated cathode heater is not limited to a double helical coil. .
上述のように本発明の傍熱形陰極用ヒータの製造方法に
よればコイル部の断線及び歪が少なく、着た脚部の曲げ
不足や曲げ過き不良のないヒータを形成することができ
るので、その工業的価値は極めて犬である。As described above, according to the method for manufacturing an indirectly heated cathode heater of the present invention, it is possible to form a heater with few disconnections and distortions in the coil portion, and with no defective bending of the legs due to insufficient bending or excessive bending. , its industrial value is extremely dog.
第１図は傍熱形陰極用ヒータの一例を示す側面図、第２
図は傍熱形陰極用ヒータの巻線装置の一例を示す斜視図
、第３図は第２図の縦断面図、第４図乃至第７図は従来
の傍熱形陰極用ヒータの製造方法を工程順に示す説明図
、第８図及び第９図は従来の傍熱形陰極用ヒータの製造
方法によるそれぞれ異なる不良を示す側面図、第１０図
乃至第１４図は本発明の傍熱形陰極用ヒータの製造方法
を工程順に示す説明図である。
２．２２．３２・・・コイル部
３．２３．３３・・・脚部 １３・・・グイ１５・・・
スＩＪ −−７’ １６・・・マンドレル２１
．３１・・・ヒータ素材
代理人 弁理士 井 上 −男
＊１ 図 ／
第４図 第５図 １１６図
第 ７ 図
第 ８ 図
１ｆ！ｔａ図
第 ■４ 図Figure 1 is a side view showing an example of an indirectly heated cathode heater;
The figure is a perspective view showing an example of a winding device for an indirectly heated cathode heater, FIG. 3 is a longitudinal sectional view of FIG. 2, and FIGS. 4 to 7 are a conventional manufacturing method of an indirectly heated cathode heater. FIGS. 8 and 9 are side views showing different defects caused by the conventional manufacturing method of a heater for a indirectly heated cathode, and FIGS. 10 to 14 are diagrams showing the indirectly heated cathode of the present invention. FIG. 3 is an explanatory diagram showing a method for manufacturing a heater for use in the order of steps. 2.22.32... Coil part 3.23.33... Leg part 13... Gui 15...
S IJ --7' 16...Mandrel 21
．． 31...Heater material agent Patent attorney Mr. Inoue*1 Figure / Figure 4 Figure 5 Figure 116 Figure 7 Figure 8 Figure 1f! Figure ta Figure ■4
Claims (1)
同軸な円筒状のスリーブ及び前記スリーブ内に滑動自在
に設けられると共に頂部に凹溝部を有するマンドレルと
からなる巻線装置を使用するコイル部と脚部とからなる
傍熱形陰極用ヒータの製造方法において、前記マンドレ
ルの凹溝部にヒータ素材の中央部を挿入する工程と、前
記スリーブ及び前記マンドレルを前記ダイの円形通孔部
内に前記ヒータ素材が前記スリーブの軸方向に沿うよう
なはＮＵ字形をなすように挿入する工程と、前記マンド
レルを回転下降して前記コイル部を形成する工程と、前
記マンドレルと共に前記スリーブを下降して前記脚部を
形成する工程とを具備することを特徴とする傍熱形陰極
用ヒータの製造方法。A coil part using a winding device consisting of a die 11 having a circular through hole, a cylindrical sleeve coaxial with the circular through hole, and a mandrel slidably provided within the sleeve and having a concave groove at the top. In the method for manufacturing an indirectly heated cathode heater, the method includes the steps of: inserting a center portion of a heater material into a groove of the mandrel; and inserting the sleeve and the mandrel into a circular hole of the die, the heater material A step of inserting the material so as to form an NU shape along the axial direction of the sleeve, a step of rotating and lowering the mandrel to form the coil portion, and a step of lowering the sleeve together with the mandrel to form the leg. 1. A method for manufacturing an indirectly heated cathode heater, comprising the step of forming a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12047182A JPS5912536A (en) | 1982-07-13 | 1982-07-13 | Method for manufacturing heater for indirectly heated cathode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12047182A JPS5912536A (en) | 1982-07-13 | 1982-07-13 | Method for manufacturing heater for indirectly heated cathode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5912536A true JPS5912536A (en) | 1984-01-23 |
| JPH0457057B2 JPH0457057B2 (en) | 1992-09-10 |
Family
ID=14786988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12047182A Granted JPS5912536A (en) | 1982-07-13 | 1982-07-13 | Method for manufacturing heater for indirectly heated cathode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5912536A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4703547A (en) * | 1985-03-12 | 1987-11-03 | Mazda Motor Corporation | Apparatus for assembling a vehicle suspension mechanism |
| US5038071A (en) * | 1988-03-07 | 1991-08-06 | Hitachi, Ltd. | Heater for indirectly-heated cathode |
| KR980011572A (en) * | 1996-07-30 | 1998-04-30 | 손욱 | DEVICE AND METHOD FOR MANUFACTURING HEATER FOR Cathode Ray Tube |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147341A (en) * | 1980-04-18 | 1981-11-16 | Toshiba Corp | Molding device for coil |
| JPS5787044A (en) * | 1980-07-24 | 1982-05-31 | New Japan Radio Co Ltd | Manufacture of spiral folded winding |
-
1982
- 1982-07-13 JP JP12047182A patent/JPS5912536A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147341A (en) * | 1980-04-18 | 1981-11-16 | Toshiba Corp | Molding device for coil |
| JPS5787044A (en) * | 1980-07-24 | 1982-05-31 | New Japan Radio Co Ltd | Manufacture of spiral folded winding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4703547A (en) * | 1985-03-12 | 1987-11-03 | Mazda Motor Corporation | Apparatus for assembling a vehicle suspension mechanism |
| US5038071A (en) * | 1988-03-07 | 1991-08-06 | Hitachi, Ltd. | Heater for indirectly-heated cathode |
| KR980011572A (en) * | 1996-07-30 | 1998-04-30 | 손욱 | DEVICE AND METHOD FOR MANUFACTURING HEATER FOR Cathode Ray Tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0457057B2 (en) | 1992-09-10 |
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