JPH05190123A - Linear cathode constitution body and laying of linear cathode - Google Patents

Linear cathode constitution body and laying of linear cathode

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Publication number
JPH05190123A
JPH05190123A JP464392A JP464392A JPH05190123A JP H05190123 A JPH05190123 A JP H05190123A JP 464392 A JP464392 A JP 464392A JP 464392 A JP464392 A JP 464392A JP H05190123 A JPH05190123 A JP H05190123A
Authority
JP
Japan
Prior art keywords
cathode
linear
linear cathode
supporting member
contact
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.)
Pending
Application number
JP464392A
Other languages
Japanese (ja)
Inventor
Seiichi Taniguchi
誠一 谷口
Fumio Yamazaki
文男 山崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP464392A priority Critical patent/JPH05190123A/en
Publication of JPH05190123A publication Critical patent/JPH05190123A/en
Pending legal-status Critical Current

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  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To maintain the precision of the arrangement pitch at high degree even if a plurality of linear cathodes are laid, without releasing the laying tension state in turning ON/OFF electric current. CONSTITUTION:A plurality of linear cathodes 1 each of which has a core wire, winding wire, and oxides and is laid in parallel are attached on a cathode supporting member 3 having a projecting curved shape, and a regulating member 4 which is attached on the linear cathode 1 and has a wall surface for regulating the arrangement direction and a spring member 5 for regulating the contact state of the linear cathode 1 on the cathode supporting member 3 are arranged on both the sides of the cathode supporting member 3. The spring member 5 having the contact part with the linear cathode 1 is installed at the position higher than the extension line of the tangential line in the circumferential direction at the edge part of the cathode supporting member 3, and a pair of regulating members 4 are arranged so that the regulating wall surface is set in the same direction for the axis line of the linear cathode 1. Accordingly, the frictional force at the edge part of the cathode supporting member can be reduced, and when the electric current which flows the linear cathode is turned ON/OFF, the movement of the linear cathode is made smooth, and the precision of the pitch of each linear cathode can be maintained.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は文字あるいは画像表示用
のカラーテレビジョンやディスプレイ等のカソード電極
を用いた画像表示装置に用いられる線状陰極構体および
線状陰極の架張方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear cathode structure used in an image display device using a cathode electrode such as a color television or a display for displaying characters or images, and a method of extending the linear cathode. ..

【０００２】[0002]

【従来の技術】従来、電子ビームで蛍光体を発色させ画
像を表示する画像表示装置としては、陰極線管（ブラウ
ン管）が主として用いられている。しかし、陰極線管で
は画像に対して奥行きが非常に長く、薄型の画像表示装
置を製作することは不可能であった。そこで、薄型の画
像表示装置として、複数本の線状陰極を平面状に並列架
張し、疑似的に面状電子源として、パターン化した陽極
の蛍光体を発光させる蛍光表示管や、同様に複数本の線
状陰極を平面状に並列架張し、放出された電子ビームを
制御電極でマトリクス状に分割し、その各々を信号変
調、偏向を行い、マトリクス状に画像を構成する平板型
の画像表示装置が提案されている。2. Description of the Related Art Conventionally, a cathode ray tube (Braun tube) has been mainly used as an image display device for displaying an image by causing a fluorescent substance to color by an electron beam. However, a cathode ray tube has a very long depth with respect to an image, and it has been impossible to manufacture a thin image display device. Therefore, as a thin image display device, a plurality of linear cathodes are stretched in parallel in a plane, and as a pseudo planar electron source, a fluorescent display tube that emits light from a patterned anode phosphor, or the like. A flat plate type in which a plurality of linear cathodes are arranged in parallel in a plane and the emitted electron beam is divided into a matrix by a control electrode, and each of them is signal-modulated and deflected to form an image in a matrix. Image display devices have been proposed.

【０００３】上記のどちらの場合も、線状陰極を有し、
線状陰極から放出される電子ビームにより蛍光発色する
ことで画像を表示し、陰極線管に対して薄型化を達成し
ている。ここで複数本の線状陰極を平面状に並列架張し
ているため、上記のどちらの場合も各線状陰極管の位置
精度確保や、陽極や他の制御電極に対する線状陰極の位
置精度確保が、表示される画像の一様性等の画質向上に
大きな影響を与える課題となっている。そのため、従来
より精度良く線状陰極を架張支持するための構造の提案
がなされてきた。In both of the above cases, there is a linear cathode,
An electron beam emitted from a linear cathode causes fluorescent coloration to display an image, thereby achieving a thinner cathode ray tube. Since a plurality of linear cathodes are laid in parallel in a plane here, in each of the above cases, the positional accuracy of each linear cathode tube and the positional accuracy of the linear cathode with respect to the anode and other control electrodes are secured. However, it is a problem that greatly affects the improvement of image quality such as the uniformity of displayed images. Therefore, there has been proposed a structure for extending and supporting the linear cathode more accurately than before.

【０００４】また、電子ビームをマトリクス制御して画
像を表示する画像表示装置では、上記の課題に追加して
各線状陰極管の絶縁も確保し、各線状陰極を各々独立に
駆動できるようにしなければならない。In addition, in the image display device which displays an image by controlling the electron beam in a matrix, in addition to the above problems, it is necessary to ensure the insulation of each linear cathode tube so that each linear cathode can be driven independently. I have to.

【０００５】まず、従来の技術の一例として、蛍光表示
管における場合を実開昭５７−１４００６０号に記載の
ものを例として説明する。First, as an example of the prior art, the case of a fluorescent display tube will be described by taking the one described in Japanese Utility Model Application Laid-Open No. 57-140060 as an example.

【０００６】図１３は、従来の技術の一例の蛍光表示管
の構成を示す斜視図である。以下の説明は本図を用いて
行い、線状陰極の支持に関係の無い部分については説明
を省略するものとする。FIG. 13 is a perspective view showing the structure of a conventional fluorescent display tube. The following description will be given with reference to this figure, and the description of parts that are not related to the support of the linear cathode will be omitted.

【０００７】４３ａ、４３ｂは線状陰極部である。線状
陰極部４３ａ、４３ｂの一端をフィラメント支持体４４
に溶接等で取り付け、リード端子４５の一部を整形し、
Ｖ溝４６を形成した一対の衝立４７を設け、線状陰極部
４３ａ、４３ｂをＶ溝４６を通して、他端を同様に一対
となるよう設けられたフィラメント支持体（図示せず）
に、あるテンションを持たせて架張している。Reference numerals 43a and 43b are linear cathode portions. One end of each of the linear cathode portions 43a and 43b is connected to the filament support member 44.
Attached by welding, etc., and shaping part of the lead terminal 45,
A filament support (not shown) provided with a pair of partitions 47 in which V-shaped grooves 46 are formed, the linear cathode portions 43a and 43b are passed through the V-shaped grooves 46, and the other ends are similarly paired.
It is stretched with a certain tension.

【０００８】このように、Ｖ溝４６に線状陰極部４３
ａ、４３ｂを通して架張することで、陽極４８と線状陰
極部４３ａ、４３ｂとの距離、各線状陰極部４３ａ、４
３ｂ間の距離はフィラメント支持体４４の位置や精度に
関わりなく、衝立４７に形成されたＶ溝４６の位置や精
度だけで決定されるようになっている。As described above, the linear cathode portion 43 is formed in the V groove 46.
By extending through a and 43b, the distance between the anode 48 and the linear cathode portions 43a and 43b, and the linear cathode portions 43a and 4b.
The distance between 3b is determined only by the position and accuracy of the V groove 46 formed in the partition 47, regardless of the position and accuracy of the filament support 44.

【０００９】次に、他の従来の技術の一例として、電子
ビームをマトリクス制御することで平板化を実現した画
像表示装置における場合を、特開平２−１２１２３９号
公報に記載のものを例として説明する。Next, as an example of another conventional technique, a case of an image display device in which flattening is realized by matrix-controlling an electron beam will be described by taking the one described in Japanese Patent Laid-Open No. 2-121239 as an example. To do.

【００１０】図１４は、従来の技術の一例の画像表示装
置の構成を示す断面図である。図１５は同様の線状陰極
部の支持構成を示す部分平面図である。以下の説明は両
図を用いて行い、線状陰極部の支持に関係の無い部分に
ついては説明を省略するものとする。FIG. 14 is a cross-sectional view showing the structure of an image display device as an example of the prior art. FIG. 15 is a partial plan view showing a supporting structure of a similar linear cathode portion. The following description will be given with reference to both figures, and the description of parts that are not related to the support of the linear cathode part will be omitted.

【００１１】線状陰極部４９はその両端を少なくとも一
方がバネ性を有する固定座５０ａ、５０ｂに溶接等で架
張支持されている。背面電極５１の両端に一対の絶縁支
持体５２ａ、５２ｂを設け、斜め溝５３が線状陰極４９
に等接するように絶縁支持体５２ａ、５２ｂに形成され
ている。また、背面電極５１に接触して絶縁物５４ａ、
５４ｂが設けられ、線状陰極４９はその外径と等接して
おり、絶縁物５４ａ、５４ｂは画像表示部より外側でし
かも絶縁支持体５２ａ、５２ｂよりも内側に設けられて
いる。At both ends of the linear cathode portion 49, at least one of them is stretched and supported by fixing seats 50a and 50b having spring properties by welding or the like. A pair of insulating supports 52a and 52b are provided at both ends of the back electrode 51, and the oblique groove 53 has a linear cathode 49.
Are formed on the insulating supports 52a and 52b so as to be in constant contact with each other. In addition, the insulator 54a in contact with the back electrode 51,
54b is provided, the linear cathode 49 is in constant contact with the outer diameter thereof, and the insulators 54a and 54b are provided outside the image display portion and inside the insulating supports 52a and 52b.

【００１２】以上のような構成により、線状陰極４９は
絶縁物５４ａ、５４ｂの外径と当接することで、背面電
極５１あるいは制御電極５５との間隔が保たれている。
さらに、線状陰極４９どうしの間隔は、斜め溝５３の端
面で位置決めされることになり、斜め溝５３のピッチで
決定されることになる。With the above structure, the linear cathode 49 is kept in contact with the outer diameters of the insulators 54a and 54b, so that the space between the linear cathode 49 and the back electrode 51 or the control electrode 55 is maintained.
Further, the distance between the linear cathodes 49 is determined by the end surface of the oblique groove 53, and is determined by the pitch of the oblique groove 53.

【００１３】[0013]

【発明が解決しようとする課題】しかしながら上記のよ
うな構成では、以下に述べるような課題があった。However, the above-mentioned structure has the following problems.

【００１４】まず、最初に述べた従来の技術の一例で
は、線状陰極が加熱され温度が上昇し、その長さが伸び
ると、線状陰極がＶ溝内でこすれ、オン／オフを繰り返
すうちに、くさび効果でＶ溝底部でくい込み、摩擦力が
大きくなって線状陰極が断線しやすいという課題があっ
た。First, in an example of the prior art described at the beginning, when the linear cathode is heated and its temperature rises and its length increases, the linear cathode rubs in the V groove and is repeatedly turned on / off. In addition, there is a problem in that the wedge effect causes the wire to bite into the bottom of the V groove, the frictional force increases, and the linear cathode is easily broken.

【００１５】また、Ｖ溝間のピッチに高い精度が要求さ
れると、Ｖ溝を１個、１個溝加工を行うことになるが、
Ｖ溝では深さ精度が出し難く、かつ加工用の刃物の先端
Ｒが線状陰極の外径Ｒ（１０μｍ程度）よりも常に鋭利
でなければならず、非常に加工性が悪いという課題もあ
った。If high precision is required for the pitch between the V-grooves, the V-grooves will be machined one by one.
In the V groove, it is difficult to obtain depth accuracy, and the tip R of the cutting tool must be always sharper than the outer diameter R (about 10 μm) of the linear cathode, and there is a problem that the workability is extremely poor. It was

【００１６】さらに、この構造では各線状陰極間の絶縁
ができないという課題もあった。ここで、絶縁のためＶ
溝を形成する衝立を別部材とし、アルミナ等のセラミッ
クスで製作したとすると、より刃物の摩耗が激しく、上
記の加工上の課題が大きなものになる。Further, this structure has a problem that insulation between the linear cathodes cannot be performed. Where V for insulation
If the partition for forming the groove is formed as a separate member and made of ceramics such as alumina, the blade will be worn more severely, and the above-mentioned problems in processing will be great.

【００１７】一般に線状陰極線材としては、赤熱させる
ためタングステンを用いるが、加熱状態でニッケルを含
んだ金属に触れていると、タングステンの結晶粒界にニ
ッケルが拡散し、強度が低下する。ところが、リード端
子はフリットやガラスとの接着性およびシール性を確保
するため、４２−６合金（４２％Ｎｉ；６％Ｃｒ；Ｆ
ｅ）や４７−６合金（４７％Ｎｉ；６％Ｃｒ；Ｆｅ）が
使用されていて、リード端子部から整形された衝立のＶ
溝部分より、タングステンへのニッケルの拡散を生じ、
線状陰極の強度低下による線状陰極の断線の恐れを生じ
るといった課題もあった。Generally, as a linear cathode wire, tungsten is used for making it red hot. However, when a metal containing nickel is touched in a heated state, nickel diffuses into a grain boundary of tungsten and strength is lowered. However, the lead terminal is made of 42-6 alloy (42% Ni; 6% Cr;
e) and 47-6 alloy (47% Ni; 6% Cr; Fe) are used, and the V of the partition is shaped from the lead terminal part.
Diffusion of nickel into tungsten occurs from the groove,
There is also a problem that there is a risk of disconnection of the linear cathode due to reduction in strength of the linear cathode.

【００１８】次に、第２の従来の技術の一例で述べた構
成では、各線状陰極の絶縁は確保されているが、真空中
で出ガスが少なく、高温に耐える絶縁支持体の材質とし
ては、アルミナ等のセラミックスしかない。そのため、
斜め溝加工は削り代が大きいため刃物の摩耗も激しく、
精度の高い斜め溝の加工は非常に困難でコストの高いも
のになっているという課題があった。Next, in the structure described in the example of the second conventional technique, the insulation of each linear cathode is ensured, but the material of the insulating support which produces a small amount of gas in a vacuum and withstands a high temperature is There are only ceramics such as alumina. for that reason,
Diagonal grooving has a large cutting allowance, resulting in severe blade wear.
There is a problem that it is very difficult and costly to process an oblique groove with high accuracy.

【００１９】また、各線状陰極間のピッチ精度は斜め溝
の端面位置で決まるため、線状陰極が当接する端面は安
易にＲ取りできず、線状陰極のオン／オフでの線状陰極
の伸縮に伴うこすれで、端面のエッジで線状陰極の芯線
が削られ、Ｖ溝の場合に比べては頻度は低いものの、や
はり断線が生じやすいという課題があった。Since the pitch accuracy between the linear cathodes is determined by the position of the end face of the oblique groove, the end face with which the linear cathode is in contact cannot be easily rounded, and the linear cathode cannot be turned on / off. The rubbing accompanying the expansion and contraction scrapes the core wire of the linear cathode at the edge of the end face, and although the frequency is lower than in the case of the V groove, there is still a problem that the wire breakage easily occurs.

【００２０】そこで本発明は、上記課題に鑑み、各線状
陰極間の絶縁を確保しつつ、簡単な構造で各線状陰極間
の高いピッチ精度を実現し、線状陰極の断線の恐れの無
い画像表示装置に用いられる線状陰極構体を提供するも
のである。Therefore, in view of the above problems, the present invention realizes high pitch accuracy between the linear cathodes with a simple structure while ensuring insulation between the linear cathodes, and an image without fear of disconnection of the linear cathodes. A linear cathode assembly used in a display device is provided.

【００２１】また、本発明の第２の目的は、各線状陰極
間の絶縁を確保しつつ、簡単な構造で各線状陰極間の高
いピッチ精度を実現し、線状陰極の断線の恐れの無い画
像表示装置に用いられる線状陰極構体を簡単な製造方法
で実現するものである。A second object of the present invention is to ensure insulation between the linear cathodes and to realize a high pitch accuracy between the linear cathodes with a simple structure, so that there is no fear of disconnection of the linear cathodes. The linear cathode structure used in the image display device is realized by a simple manufacturing method.

【００２２】また、本発明の第３の目的は、各線状陰極
間の絶縁を確保しつつ、簡単な構造で各線状陰極間の高
いピッチ精度を実現し、線状陰極の断線の恐れの無い画
像表示装置の線状陰極を簡単な架張方法で実現する構成
を提供するとともに、その固定強度等の信頼性を向上さ
せるものである。A third object of the present invention is to ensure insulation between the linear cathodes and to realize a high pitch accuracy between the linear cathodes with a simple structure, without the risk of disconnection of the linear cathodes. The present invention provides a structure for realizing a linear cathode of an image display device by a simple stretching method and improves reliability such as fixing strength.

【００２３】また、本発明の第４の目的は、各線状陰極
間の絶縁を確保しつつ、簡単な構造で各線状陰極間の高
いピッチ精度を実現し、線状陰極の断線の恐れもなく、
特に線状陰極のこすれによるピンの摩耗や他の金属の拡
散等を防止する構成の画像表示装置の線状陰極構体を提
供するものである。A fourth object of the present invention is to realize a high pitch accuracy between the linear cathodes with a simple structure while ensuring insulation between the linear cathodes and to prevent disconnection of the linear cathodes. ,
In particular, the present invention provides a linear cathode assembly for an image display device, which is configured to prevent abrasion of pins and diffusion of other metals due to rubbing of the linear cathode.

【００２４】[0024]

【課題を解決するための手段】上記問題点を解決するた
めに本発明の線状陰極構体は、芯線と巻線とオキサイド
とを有し平行に架張した複数の線状陰極を凸形の湾曲形
状をなす陰極支持部材に当接させ、前記線状陰極に当接
し配列方向を規制する壁面を有する規制部材と前記陰極
支持部材上の前記線状陰極の接触状態を規制するバネ部
材を前記陰極支持部材の両側に配置し、前記陰極支持部
材の端部における円周方向の接線の延長線の高さ以上の
位置に前記線状陰極との接触部を設けた前記バネ部材を
設置し、前記線状陰極の軸線に対して規制壁面が同方向
になるように一対の前記規制部材を配設した構成を有す
る。In order to solve the above-mentioned problems, the linear cathode structure of the present invention has a plurality of linear cathodes having a core wire, a winding wire and an oxide and extending in parallel to each other. A spring member for contacting a cathode supporting member having a curved shape and for restricting a contact state between the linear cathode on the cathode supporting member and a regulating member having a wall surface for contacting the linear cathode and regulating the arrangement direction is provided. Arranged on both sides of the cathode support member, the spring member provided with a contact portion with the linear cathode at a position higher than the height of the extension of the circumferential tangent line at the end of the cathode support member, The pair of regulating members is arranged such that the regulating wall faces the same direction as the axis of the linear cathode.

【００２５】あるいは、芯線と巻線とオキサイドとを有
し平行に架張した複数の線状陰極を凸形の湾曲形状をな
す陰極支持部材に当接させ、前記線状陰極に当接し配列
方向を規制する壁面を有する第１の規制部材と前記陰極
支持部材上の前記線状陰極の接触状態を規制する第２の
規制部材を前記陰極支持部材の両側に配置し、前記陰極
支持部材の端部における円周方向の接線の延長線の高さ
以上の位置に前記線状陰極との接触部を設けた前記第２
の規制部材を前記陰極支持部材と前記第１の規制部材と
の間に設置し、前記線状陰極の軸線に対して規制壁面が
同方向になるように一対の前記第１の規制部材を配設し
た構成を有するものである。Alternatively, a plurality of linear cathodes having a core wire, a winding wire, and an oxide and extending in parallel are brought into contact with a cathode supporting member having a convex curved shape, and the linear cathodes are brought into contact with each other and arranged in the arrangement direction. A first restricting member having a wall surface for restricting the temperature and a second restricting member restricting the contact state of the linear cathode on the cathode supporting member are arranged on both sides of the cathode supporting member, and the end of the cathode supporting member is disposed. The contact portion with the linear cathode is provided at a position equal to or higher than the height of the extension of the tangential line in the circumferential direction of the portion.
Is installed between the cathode supporting member and the first restricting member, and the pair of first restricting members are arranged so that the restricting wall surface is in the same direction with respect to the axis of the linear cathode. It has the provided structure.

【００２６】さらには、芯線と巻線とオキサイドとを有
し平行に架張した複数の線状陰極を凸形の湾曲形状をな
す陰極支持部材に当接させ、前記線状陰極に当接し配列
方向を規制する壁面と前記陰極支持部材上の前記線状陰
極の接触状態を規制する底面とを有する規制部材を前記
陰極支持部材の両側に配置し、前記陰極支持部材の端部
における円周方向の接線の延長線の高さ以上の位置に前
記線状陰極との接触部の底面を設けた前記規制部材を設
置し、前記線状陰極の両端を前記規制部材に形成された
壁面と底面に当接させ、軸線に対して規制壁面が同方向
になるように一対の前記規制部材を配設した構成として
もよい。Further, a plurality of linear cathodes having a core wire, a winding wire and an oxide and stretched in parallel are brought into contact with a cathode supporting member having a convex curved shape, and are brought into contact with the linear cathodes and arranged. A regulating member having a wall surface that regulates the direction and a bottom surface that regulates the contact state of the linear cathode on the cathode supporting member is arranged on both sides of the cathode supporting member, and a circumferential direction at an end portion of the cathode supporting member. The regulating member provided with the bottom surface of the contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangent line, the both ends of the linear cathode on the wall surface and the bottom surface formed on the regulating member. A pair of the regulation members may be arranged such that they are brought into contact with each other and the regulation wall surfaces are oriented in the same direction with respect to the axis.

【００２７】そして、線状陰極の架張方法としては、芯
線と巻線とオキサイドとを有し平行に架張した複数の線
状陰極を当接させた凸形の湾曲形状をなす陰極支持部材
と、前記線状陰極に当接し配列方向を規制する壁面を有
する第１の規制部材と、前記陰極支持部材上の前記線状
陰極の接触状態を規制する第２の規制部材とを備え、前
記陰極支持部材の端部における円周方向の接線の延長線
の高さ以上の位置に前記線状陰極との接触部を設けた前
記第２の規制部材を前記陰極支持部材と前記第１の規制
部材との間に固定する工程と、前記線状陰極を架張し前
記第１の規制部材の壁面と前記第２の規制部材に当接さ
せる工程と、前記線状陰極の軸線に対して規制壁面が同
方向になるように一対の前記第１の規制部材を配設する
工程と、前記線状陰極を前記陰極支持部材に当接させる
工程とからなるものである。As a method of stretching the linear cathode, a cathode supporting member having a convex curved shape in which a plurality of linear cathodes having a core wire, a winding and an oxide and stretched in parallel are brought into contact with each other. A first restricting member having a wall surface that abuts on the linear cathode and restricts an array direction, and a second restricting member that restricts a contact state of the linear cathode on the cathode supporting member, The second restricting member provided with a contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member is provided with the cathode supporting member and the first restricting member. A step of fixing the linear cathode to a member, a step of stretching the linear cathode so as to abut against a wall surface of the first regulating member and the second regulating member, and regulating the axis of the linear cathode. A step of arranging the pair of first regulating members so that the wall surfaces thereof are in the same direction; It is made of a step of abutting the electrode to the cathode support member.

【００２８】[0028]

【作用】上記した第１の構成によれば、溝間のピッチに
高い精度が要求される場合、線状陰極のピッチ精度を決
める規制部材の溝ピッチを機械加工の精度で得ることが
できるため各線状陰極のピッチ精度（±１０μｍ程度）
を得ることができる。また線状陰極を架張する際、陰極
支持部材の端部における円周方向の接線の延長線の高さ
以上の位置に線状陰極との接触部を設けたバネ部材を設
置し、バネ部材の高さを制御することで、陰極支持部材
の端部における摩擦力を低減することができる。したが
って線状陰極に流す電流をオン／オフする際、線状陰極
の動きを滑らかにすることができ、陰極支持部材上で弛
むことがなく、各線状陰極のピッチ精度を保持すること
が可能となる。According to the above-described first structure, when high accuracy is required for the pitch between the grooves, the groove pitch of the regulating member that determines the pitch accuracy of the linear cathode can be obtained with the accuracy of machining. Pitch accuracy of each linear cathode (about ± 10 μm)
Can be obtained. Further, when the linear cathode is stretched, a spring member provided with a contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member is installed. The frictional force at the end of the cathode supporting member can be reduced by controlling the height of the cathode supporting member. Therefore, when the current flowing through the linear cathode is turned on / off, the movement of the linear cathode can be made smooth, and the pitch accuracy of each linear cathode can be maintained without sagging on the cathode supporting member. Become.

【００２９】また上記した第２の構成によれば、溝間の
ピッチに高い精度が要求された場合、線状陰極のピッチ
精度を決める第１の規制部材の溝ピッチを機械加工の精
度で得ることができるため各線状陰極のピッチ精度（±
１０μｍ程度）を得ることができる。また線状陰極を架
張する際、陰極支持部材の端部における円周方向の接線
の延長線の高さ以上の位置に線状陰極との接触部を設け
た第２の規制部材を設置し、第２の規制部材の高さを制
御することで、陰極支持部材の端部における摩擦力を低
減することができる。しかも陰極支持部材の端部の高さ
と第２の規制部材の接触部の高さを一定に保持できるの
で、線状陰極に流す電流をオン／オフする際、線状陰極
の動きを滑らかにすることができ、陰極支持部材上で弛
むことがなく、各線状陰極のピッチ精度を保持すること
が可能となる。Further, according to the above-mentioned second structure, when high precision is required for the pitch between the grooves, the groove pitch of the first regulating member for determining the pitch accuracy of the linear cathode is obtained with the accuracy of machining. Therefore, the pitch accuracy of each linear cathode (±
10 μm) can be obtained. Further, when the linear cathode is stretched, a second regulating member having a contact portion with the linear cathode is installed at a position higher than the height of the extension of the tangential line in the circumferential direction at the end of the cathode supporting member. By controlling the height of the second restriction member, the frictional force at the end of the cathode support member can be reduced. Moreover, since the height of the end portion of the cathode supporting member and the height of the contact portion of the second restricting member can be kept constant, the movement of the linear cathode is smoothed when the current flowing to the linear cathode is turned on / off. It is possible to maintain the pitch accuracy of each linear cathode without slack on the cathode supporting member.

【００３０】更に上記の第３の構成によれば、溝間のピ
ッチに高い精度が要求された場合、線状陰極のピッチ精
度を決める規制部材の壁面のピッチを機械加工の精度で
得ることができるため各線状陰極のピッチ精度（±１０
μｍ程度）を得ることができる。また線状陰極を架張す
る際、陰極支持部材の端部における円周方向の接線の延
長線の高さ以上の位置に線状陰極との接触部である底面
を設けた規制部材を設置し、規制部材の底面の高さを制
御することで、陰極支持部材の端部における摩擦力を低
減することができる。しかも陰極支持部材の端部の高さ
と規制部材の接触部である底面の高さを一定に保持でき
るので、線状陰極に流す電流をオン／オフする際、線状
陰極の動きを滑らかにすることができ、陰極支持部材上
で弛むことがなく、各線状陰極のピッチ精度を保持する
ことが可能となる。Further, according to the above third structure, when high accuracy is required for the pitch between the grooves, the pitch of the wall surface of the regulating member that determines the pitch accuracy of the linear cathode can be obtained with the accuracy of machining. Therefore, the pitch accuracy of each linear cathode (± 10
μm) can be obtained. Further, when the linear cathode is stretched, a regulating member provided with a bottom surface that is a contact portion with the linear cathode is installed at a position higher than the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member. By controlling the height of the bottom surface of the regulating member, the frictional force at the end of the cathode supporting member can be reduced. Moreover, since the height of the end portion of the cathode supporting member and the height of the bottom surface which is the contact portion of the regulating member can be kept constant, the movement of the linear cathode is smoothed when the current flowing to the linear cathode is turned on / off. It is possible to maintain the pitch accuracy of each linear cathode without slack on the cathode supporting member.

【００３１】そして、上記の架張方法によれば、溝間の
ピッチに高い精度が要求された場合、線状陰極のピッチ
精度を決める第１の規制部材の溝ピッチを機械加工の精
度で得ることができるため各線状陰極のピッチ精度（±
１０μｍ程度）を得ることができ、また線状陰極を架張
する際、陰極支持部材の端部における円周方向の接線の
延長線の高さ以上の位置に線状陰極との接触部を設けた
第２の規制部材を設置し、第２の規制部材の高さを制御
することで、陰極支持部材の端部における摩擦力を低減
することができ、しかも陰極支持部材の端部の高さと第
２の規制部材の接触部の高さを一定に保持できるので、
線状陰極に流す電流をオン／オフする際、線状陰極の動
きを滑らかにすることができ、陰極支持部材上で弛むこ
とがなく、各線状陰極のピッチ精度を保持することが可
能となるものである。According to the above-mentioned stretching method, when high accuracy is required for the pitch between the grooves, the groove pitch of the first regulating member that determines the pitch accuracy of the linear cathode is obtained with the accuracy of machining. Therefore, the pitch accuracy of each linear cathode (±
About 10 μm), and when the linear cathode is stretched, a contact portion with the linear cathode is provided at a position higher than the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member. By installing the second regulating member and controlling the height of the second regulating member, the frictional force at the end portion of the cathode supporting member can be reduced, and the height of the end portion of the cathode supporting member can be reduced. Since the height of the contact portion of the second restriction member can be kept constant,
It is possible to smooth the movement of the linear cathode when turning on / off the current flowing to the linear cathode, and to maintain the pitch accuracy of each linear cathode without sagging on the cathode supporting member. It is a thing.

【００３２】[0032]

【実施例】以下、本発明の実施例について、図面に基づ
いて説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００３３】図１２は本発明が適用される画像表示装置
の一例の外観斜視図である。この画像表示装置につい
て、図１２を用いて簡単に説明する。画像表示装置の電
子ビーム発生部は電子ビーム取り出し電極と、所定の形
状に形成された導電膜を有する背面基板と、絶縁膜を有
しかつ孔部を形成された金属基板と、電子ビームを発生
するカソード等の部材から製造される。FIG. 12 is an external perspective view of an example of an image display device to which the present invention is applied. This image display device will be briefly described with reference to FIG. The electron beam generating unit of the image display device generates an electron beam, an electron beam extraction electrode, a back substrate having a conductive film formed in a predetermined shape, a metal substrate having an insulating film and having holes formed therein, and an electron beam. It is manufactured from a member such as a cathode.

【００３４】次に、簡単に原理について説明する。背面
基板の上方に線状カソード電極を配置し、さらに電子ビ
ーム取り出し電極を配置する。線状カソード電極に電流
を流すことにより線状カソード電極は加熱されるととも
に電子ビームを放射する。背面基板に陰電圧を印可する
とともに電子ビーム取り出し電極に陽電圧を印可する
と、電子ビームは電子ビーム取り出し電極方向に指向性
を持つことになる。さらに電子ビームはアルミ蒸着膜等
で形成されたアノードに達し衝突発光する。Next, the principle will be briefly described. A linear cathode electrode is arranged above the back substrate, and an electron beam extraction electrode is further arranged. By applying an electric current to the linear cathode electrode, the linear cathode electrode is heated and emits an electron beam. When a negative voltage is applied to the back substrate and a positive voltage is applied to the electron beam extraction electrode, the electron beam has directivity in the electron beam extraction electrode direction. Further, the electron beam reaches the anode made of a vapor-deposited aluminum film or the like and collides and emits light.

【００３５】カソード電極は、金属芯線と金属巻線から
なり、かつ電子放射物質を保持する線状カソード（線状
陰極）である。金属芯線と金属巻線の材質はタングステ
ンである。画像表示装置は真空容器内に設置した陰極部
Ｉ、電極ユニットＤ、アノードＡから構成され、ガラス
容器の内部に陰極部Ｉ、電極ユニットＤ、アノードＡを
配設する。またガラス容器内は超真空に保持されてい
る。The cathode electrode is a linear cathode (linear cathode) which is composed of a metal core wire and a metal winding and holds an electron emitting substance. The material of the metal core wire and the metal winding is tungsten. The image display device comprises a cathode part I, an electrode unit D, and an anode A installed in a vacuum container, and the cathode part I, the electrode unit D, and the anode A are arranged inside a glass container. Moreover, the inside of the glass container is kept in an ultra-vacuum.

【００３６】本画像表示装置は陰極部Ｉに設置した線状
カソードＫから放出した電子ビームを電極ユニットＤで
偏向制御し、アノードＡに衝突させて発光させる方式で
ある。This image display device is of a system in which the electron beam emitted from the linear cathode K installed in the cathode portion I is deflection-controlled by the electrode unit D and collides with the anode A to emit light.

【００３７】ここで弾性を有するバネ部と合成を有する
固定部について簡単に説明する。線状陰極部はバネ部と
固定部に溶接されて固定される。固定部によって始点が
決まり、バネ部によって線状陰極部の伸縮を吸収する。
線状陰極部に信号電圧、信号電流を印可すると発熱し伸
びる。バネ部の傾きは線状陰極部が発熱し伸びた状態よ
りさらに大きくし、常に線状陰極部に架張力が働いてい
る状態にする。Here, the elastic spring portion and the fixing portion having a combination will be briefly described. The linear cathode portion is welded and fixed to the spring portion and the fixed portion. The fixed part determines the starting point, and the spring part absorbs the expansion and contraction of the linear cathode part.
When a signal voltage and a signal current are applied to the linear cathode portion, they generate heat and expand. The inclination of the spring portion is made larger than the state in which the linear cathode portion is heated and stretched so that the tension is always applied to the linear cathode portion.

【００３８】さて、図１は本発明の線状陰極構体の第１
の実施例を示す斜視図であり、１は線状陰極、２は固定
部品、３は陰極支持部材、４は規制部材、５はバネ部
材、６は規制部材の固定部材、７は背面基板である。Now, FIG. 1 shows the first embodiment of the linear cathode assembly of the present invention.
2 is a perspective view showing an embodiment of the present invention, 1 is a linear cathode, 2 is a fixed part, 3 is a cathode supporting member, 4 is a regulating member, 5 is a spring member, 6 is a regulating member fixing member, and 7 is a rear substrate. is there.

【００３９】図２は図１のａ方向とｂ方向からみた、そ
れぞれ正面図と平面図である。以下図１および図２を用
いて、構成を説明する。FIG. 2 is a front view and a plan view, respectively, as seen from the directions a and b in FIG. The configuration will be described below with reference to FIGS. 1 and 2.

【００４０】線状陰極１の構成は、図６を用いて後ほど
詳細に説明するが、芯線に巻線をスパイラル状に形成し
た後、オキサイドを塗布したもので、適当な長さの線状
陰極１を複数本、平行に架張している。線状陰極１はオ
キサイド塗布後、スプールかドラムに巻いた状態で保管
されており、所定の長さに切断し、架張準備を行う。架
張準備には線状陰極１の両端にパッドと呼ばれる線状陰
極１の固定部品２を固定する。材質はＳＵＳ４３０、４
２−６合金（４２％Ｎｉ；６％Ｃｒ；Ｆｅ）等である。
一枚の板材を折曲げたり、二枚の板材を用いる。線状陰
極１を挟み、固定部品２スポット溶接で溶接固定する。The structure of the linear cathode 1, which will be described later in detail with reference to FIG. 6, is obtained by forming a winding on a core wire in a spiral shape and then applying oxide, and the linear cathode 1 has an appropriate length. A plurality of 1s are stretched in parallel. The linear cathode 1 is stored in a state in which it is wound around a spool or a drum after being coated with oxide, and cut into a predetermined length to prepare for stretching. To prepare for the stretching, fixing parts 2 of the linear cathode 1 called pads are fixed to both ends of the linear cathode 1. Material is SUS430, 4
2-6 alloy (42% Ni; 6% Cr; Fe) and the like.
Bend one plate or use two plates. The linear cathode 1 is sandwiched and fixed by spot welding with the fixing component 2.

【００４１】次に線状陰極１を凸形の湾曲形状をなす陰
極支持部材３に当接させた。陰極支持部材３は予め湾曲
形状を形成される。陰極支持部材３の金属芯金にＡｌ2
Ｏ3溶射膜を形成する。金属芯金の材料はＳＵＳ４３
０、インバー（３６％Ｎｉ；Ｆｅアンバー型合金）等が
用いられる。板厚は０．２ｍｍ程度である。Ａｌ2Ｏ3溶
射膜の膜厚は３０μｍから２００μｍ程度である。Ａｌ
2Ｏ3溶射膜は気孔を有し、断熱性、保温性がある。線状
陰極１が接触しても線状陰極１は６５０℃程度上昇して
いるが、温度低下は認められなかった。Next, the linear cathode 1 was brought into contact with the cathode supporting member 3 having a convex curved shape. The cathode supporting member 3 is formed in a curved shape in advance. Al 2 is added to the metal core of the cathode support member 3.
An O 3 sprayed film is formed. The material of the metal core is SUS43
0, Invar (36% Ni; Fe amber type alloy) and the like are used. The plate thickness is about 0.2 mm. The film thickness of the Al 2 O 3 sprayed film is about 30 to 200 μm. Al
The 2 O 3 sprayed film has pores and is heat insulating and heat retaining. Even when the linear cathode 1 was brought into contact with the linear cathode 1, the temperature of the linear cathode 1 increased by about 650 ° C., but no temperature decrease was observed.

【００４２】線状陰極１に当接し配列方向を規制する壁
面を有する規制部材４と陰極支持部材３上の線状陰極１
の接触状態を規制するバネ部材５を陰極支持部材２の両
側に配置した。この場合、少なくとも線状陰極１の両端
の固定場所の一方はバネ部材５であり、他方は固定部材
であってもよい。規制部材４を規制部材の取付部材６に
予めネジで固定して取り付ける。取付部材６の材質はＳ
ＵＳ４３０、インバー（３６％Ｎｉ；Ｆｅアンバー型合
金）等である。線状陰極１をバネ部材５に固定後、背面
基板７に固定する。背面基板７に固定する際、初めて線
状陰極１は陰極支持部材３に接触する。それまでは線状
陰極１は中空に架張されている。The linear cathode 1 on the cathode supporting member 3 and the regulating member 4 having a wall surface that abuts the linear cathode 1 and regulates the arrangement direction.
Spring members 5 for restricting the contact state of No. 2 were arranged on both sides of the cathode support member 2. In this case, at least one of fixing positions at both ends of the linear cathode 1 may be the spring member 5 and the other may be the fixing member. The restriction member 4 is previously fixed to the attachment member 6 of the restriction member with a screw and attached. The material of the mounting member 6 is S
US430, Invar (36% Ni; Fe amber type alloy) and the like. After fixing the linear cathode 1 to the spring member 5, it is fixed to the back substrate 7. The linear cathode 1 comes into contact with the cathode support member 3 only when it is fixed to the back substrate 7. Until then, the linear cathode 1 was suspended in the air.

【００４３】図２（ａ）を用いて構成を説明する。陰極
支持部材３の曲率半径は５００００ｍｍから１００００
０ｍｍが適していることを実験で確認した。陰極支持部
材３の曲率半径を形成するため、背面基板７を研削で削
り出して所定の曲率半径を形成した。また別の方法とし
て、リブを用いたり、ハニカム部材を用いたりしても同
様の効果を得ることが分かった。線状陰極１は電流のオ
ン／オフにより伸縮する。その時バネ部材５のバネ性に
より伸縮の変位を吸収する。陰極支持部材３の端部にお
ける円周方向の接線の延長線の高さ以上の位置に線状陰
極１との接触部を設けたバネ部材５を設置した。このこ
とにより、線状陰極１が伸縮する際、線状陰極１が陰極
支持部材３表面を滑らかに動くことができる。陰極支持
部材３の端部では線状陰極１が摩擦力により動きを止め
ることがない。その結果、線状陰極１の位置精度は保持
される。The structure will be described with reference to FIG. The radius of curvature of the cathode support member 3 is from 50,000 mm to 10,000
It was confirmed experimentally that 0 mm is suitable. In order to form the radius of curvature of the cathode supporting member 3, the back substrate 7 was ground and ground to form a predetermined radius of curvature. As another method, it was found that the same effect can be obtained by using a rib or a honeycomb member. The linear cathode 1 expands and contracts by turning on / off the current. At that time, the elasticity of the spring member 5 absorbs the expansion and contraction displacement. A spring member 5 provided with a contact portion with the linear cathode 1 was installed at a position higher than the height of the extension of the tangential line in the circumferential direction at the end of the cathode supporting member 3. This allows the linear cathode 1 to move smoothly on the surface of the cathode supporting member 3 when the linear cathode 1 expands and contracts. At the end of the cathode supporting member 3, the linear cathode 1 does not stop its movement due to frictional force. As a result, the positional accuracy of the linear cathode 1 is maintained.

【００４４】図２（ｂ）を用いて構成を説明する。本発
明は線状陰極１の軸線に対して規制壁面が同方向になる
ように一対の規制部材４を配設したことを特徴とする線
状陰極構体である。規制部材４の溝に添うように線状陰
極１を架張する。線状陰極１の軸線に対して規制壁面が
同方向になるように一対の規制部材４を配設することに
より、線状陰極１の変位方向が一方向のみになり、かつ
大きさとしてバネの変位により、線状陰極１の変位方向
を是正する働きがある。線状陰極１を架張し、陰極支持
部材３に接触させた後、オン／オフさせ、線状陰極１の
位置精度を測定評価した。目標値±１０μｍに対して±
６μｍの精度が得られた。The configuration will be described with reference to FIG. The present invention is a linear cathode assembly in which a pair of regulating members 4 are arranged such that the regulating wall surfaces are in the same direction with respect to the axis of the linear cathode 1. The linear cathode 1 is stretched along the groove of the regulating member 4. By disposing the pair of restricting members 4 so that the restricting wall surfaces are in the same direction with respect to the axis of the linear cathode 1, the displacement direction of the linear cathode 1 is only one direction, and the size of the spring is The displacement serves to correct the displacement direction of the linear cathode 1. After the linear cathode 1 was stretched and brought into contact with the cathode supporting member 3, the linear cathode 1 was turned on / off to measure and evaluate the positional accuracy of the linear cathode 1. Target value ± 10 μm ±
An accuracy of 6 μm was obtained.

【００４５】溝間のピッチに高い精度が要求されると、
溝を１個、１個溝加工を行うことになるが、線状陰極の
ピッチ精度を決める規制部材の溝ピッチを機械加工の精
度で得ることができるため各線状陰極のピッチ精度（±
１０μｍ程度）を得ることができる。また線状陰極を架
張する際、陰極支持部材の端部における円周方向の接線
の延長線の高さ以上の位置に線状陰極との接触部を設け
たバネ部材を設置し、バネ部材の高さを制御すること
で、陰極支持部材の端部における摩擦力を低減すること
ができる。したがって線状陰極に流す電流をオン／オフ
する際、線状陰極の動きを滑らかにすることができ、陰
極支持部材上で弛むことがなく、各線状陰極のピッチ精
度を保持する効果を有する。When high accuracy is required for the pitch between the grooves,
One groove is processed one by one, but since the groove pitch of the regulating member that determines the pitch accuracy of the linear cathode can be obtained with the accuracy of machining, the pitch accuracy of each linear cathode (±
10 μm) can be obtained. Further, when the linear cathode is stretched, a spring member provided with a contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member is installed. The frictional force at the end of the cathode supporting member can be reduced by controlling the height of the cathode supporting member. Therefore, when the current flowing through the linear cathode is turned on / off, the movement of the linear cathode can be smoothed, and there is an effect that the pitch accuracy of each linear cathode is maintained without sagging on the cathode supporting member.

【００４６】図３は本発明の線状陰極構体の第２の実施
例を示す斜視図である。図３において、８は線状陰極、
９は固定部品、１０は陰極支持部材、１１は第１の規制
部材、１２は第２の規制部材、１３はバネ部材、１４は
規制部材の固定部材、１５は背面基板である。FIG. 3 is a perspective view showing a second embodiment of the linear cathode structure according to the present invention. In FIG. 3, 8 is a linear cathode,
Reference numeral 9 is a fixed component, 10 is a cathode support member, 11 is a first regulation member, 12 is a second regulation member, 13 is a spring member, 14 is a regulation member fixing member, and 15 is a rear substrate.

【００４７】図４は図３のｃ方向とｄ方向からみた正面
図と平面図である。以下図３および図４を用いて、本実
施例を説明する。FIG. 4 is a front view and a plan view seen from the directions c and d in FIG. This embodiment will be described below with reference to FIGS. 3 and 4.

【００４８】芯線に巻線をスパイラル状に形成した後、
オキサイドを塗布した複数の線状陰極８を平行に架張し
た。線状陰極８の構成は図６を用いて詳細に説明する。
線状陰極８はオキサイド塗布後、スプールかドラムに巻
いた状態で保管されており、所定の長さのみ切断し、架
張準備を行う。架張準備には線状陰極８の両端にパッド
と呼ばれる線状陰極１の固定部品９を固定する。材質は
ＳＵＳ４３０、４２−６合金（４２％Ｎｉ；６％Ｃｒ；
Ｆｅ）等である。一枚の板材を折曲げたり、二枚の板材
を用いる。線状陰極１を挟み、固定部品９をスポット溶
接で溶接固定する。After forming a winding on the core wire in a spiral shape,
A plurality of linear cathodes 8 coated with oxide were stretched in parallel. The structure of the linear cathode 8 will be described in detail with reference to FIG.
The linear cathode 8 is stored in a state that it is wound around a spool or a drum after being coated with oxide, and is cut to a predetermined length to prepare for stretching. To prepare for the stretching, fixing parts 9 of the linear cathode 1 called pads are fixed to both ends of the linear cathode 8. The material is SUS430, 42-6 alloy (42% Ni; 6% Cr;
Fe) and the like. Bend one plate or use two plates. The linear cathode 1 is sandwiched and the fixing component 9 is welded and fixed by spot welding.

【００４９】次に線状陰極９を凸形の湾曲形状をなす陰
極支持部材１０に当接させた。陰極支持部材１０は予め
湾曲形状を形成される。陰極支持部材８の金属芯金にＡ
ｌ2Ｏ3溶射膜を形成する。金属芯金の材料はＳＵＳ４３
０、インバー（３６％Ｎｉ；Ｆｅアンバー型合金）等が
用いられる。板厚は０．２ｍｍ程度である。Ａｌ2Ｏ3溶
射膜の膜厚は３０μｍから２００μｍ程度である。Ａｌ
2Ｏ3溶射膜は気孔を有し、断熱性、保温性がある。線状
陰極９が接触しても線状陰極９は６５０℃程度上昇して
いるが、温度低下は認められなかった。Next, the linear cathode 9 was brought into contact with the cathode supporting member 10 having a convex curved shape. The cathode supporting member 10 is formed in a curved shape in advance. A for the metal core of the cathode support member 8
An l 2 O 3 sprayed film is formed. The material of the metal core is SUS43
0, Invar (36% Ni; Fe amber type alloy) and the like are used. The plate thickness is about 0.2 mm. The film thickness of the Al 2 O 3 sprayed film is about 30 to 200 μm. Al
The 2 O 3 sprayed film has pores and is heat insulating and heat retaining. Even if the linear cathode 9 comes into contact with the linear cathode 9, the temperature of the linear cathode 9 rises by about 650 ° C., but no temperature decrease was observed.

【００５０】線状陰極９に当接し配列方向を規制する壁
面を有する第１の規制部材１１と陰極支持部材１０上の
線状陰極９の接触状態を規制するバネ部材１３を陰極支
持部材１０の両側に配置した。この場合、少なくとも線
状陰極８の両端の固定場所の一方はバネ部材１３であ
り、他方は固定部材であってもよい。規制部材１１を規
制部材の取付部材１２に予めネジで固定して取り付け
る。取付部材１２の材質はＳＵＳ４３０、インバー（３
６％Ｎｉ；Ｆｅアンバー型合金）等である。線状陰極８
をバネ部材１３に固定後、背面基板１５に固定する。背
面基板１５に固定する際、初めて線状陰極８は陰極支持
部材１０に接触する。それまでは線状陰極８は中空に架
張されている。A spring member 13 for restricting the contact state of the linear cathode 9 on the cathode supporting member 10 and the first restricting member 11 having a wall surface for contacting the linear cathode 9 and restricting the arrangement direction is provided in the cathode supporting member 10. Placed on both sides. In this case, at least one of the fixing locations at both ends of the linear cathode 8 may be the spring member 13 and the other may be the fixing member. The regulating member 11 is attached to the attaching member 12 of the regulating member by previously fixing it with screws. The material of the mounting member 12 is SUS430, Invar (3
6% Ni; Fe amber type alloy) and the like. Linear cathode 8
After being fixed to the spring member 13, it is fixed to the rear substrate 15. The linear cathode 8 comes into contact with the cathode supporting member 10 for the first time when it is fixed to the back substrate 15. Until then, the linear cathode 8 was stretched in the air.

【００５１】図４の（ｃ）を用いて構成を説明する。陰
極支持部材１０の曲率半径は５００００ｍｍから１００
０００ｍｍが適していることを実験で確認した。陰極支
持部材１０の曲率半径を形成するため、背面基板１５を
研削で削り出して所定の曲率半径を形成した。また別の
方法として、リブを用いたり、ハニカム部材を用いたり
しても同様の効果を得ることが分かった。The configuration will be described with reference to FIG. The radius of curvature of the cathode support member 10 is 50000 mm to 100
It was confirmed experimentally that 000 mm is suitable. In order to form the radius of curvature of the cathode supporting member 10, the back substrate 15 was ground by grinding to form a predetermined radius of curvature. As another method, it was found that the same effect can be obtained by using a rib or a honeycomb member.

【００５２】線状陰極８は電流のオン／オフにより伸縮
する。その時バネ部材１３のバネ性により伸縮の変位を
吸収する。陰極支持部材１０の端部における円周方向の
接線の延長線の高さ以上の位置に線状陰極８との接触部
を設けた第２の規制部材１２を陰極支持部材１０と第１
の規制部材１１の間に設置した。The linear cathode 8 expands and contracts when the current is turned on / off. At that time, the elasticity of the spring member 13 absorbs the expansion and contraction displacement. The second supporting member 12 provided with a contact portion with the linear cathode 8 at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end portion of the cathode supporting member 10 and the first supporting member 10
It was installed between the regulating members 11 of No.

【００５３】このことにより、線状陰極８が伸縮する
際、線状陰極８が陰極支持部材１０表面を滑らかに動く
ことができる。陰極支持部材１０の端部では線状陰極８
が摩擦力により動きを止めることがない。その結果、線
状陰極８の位置精度は保持される。第２の規制部材１２
を用いることにより陰極支持部材１０の端部の高さと第
２の規制部材１２の接触部の高さの位置を固定すること
ができ、安定した位置関係を保持できる。また、第２の
規制部材１２を設けることで、接触部の高さを微調整す
ることができる。As a result, when the linear cathode 8 expands and contracts, the linear cathode 8 can move smoothly on the surface of the cathode supporting member 10. The linear cathode 8 is provided at the end of the cathode supporting member 10.
Does not stop moving due to frictional force. As a result, the positional accuracy of the linear cathode 8 is maintained. Second regulating member 12
By using, it is possible to fix the position of the height of the end portion of the cathode supporting member 10 and the height of the contact portion of the second regulating member 12, and it is possible to maintain a stable positional relationship. Further, by providing the second regulating member 12, the height of the contact portion can be finely adjusted.

【００５４】図４の（ｄ）を用いて構成を説明する。本
発明は線状陰極８の軸線に対して規制壁面が同方向にな
るように一対の第１の規制部材１１を配設したことを特
徴とする線状陰極構体である。第１の規制部材１１の溝
に添うように線状陰極８を架張する。線状陰極８の軸線
に対して規制壁面が同方向になるように一対の第１の規
制部材１１を配設することにより、線状陰極８の変位方
向が一方向のみになり、かつ大きさとしてバネの変位に
より、線状陰極８の変位方向を是正する働きがある。線
状陰極８を架張し、陰極支持部材１０に接触させた後、
オン／オフさせ、線状陰極８の位置精度を測定評価し
た。目標値±１０μｍに対して±６μｍの精度が得られ
た。The structure will be described with reference to FIG. The present invention is a linear cathode assembly in which a pair of first restricting members 11 are arranged so that the restricting wall surfaces are in the same direction with respect to the axis of the linear cathode 8. The linear cathode 8 is stretched along the groove of the first restriction member 11. By disposing the pair of first restricting members 11 so that the restricting wall surfaces are in the same direction with respect to the axis of the linear cathode 8, the displacement direction of the linear cathode 8 is only one direction, and the size is large. As a result, the displacement of the spring serves to correct the displacement direction of the linear cathode 8. After the linear cathode 8 is stretched and brought into contact with the cathode support member 10,
The linear cathode 8 was turned on / off and the positional accuracy of the linear cathode 8 was measured and evaluated. An accuracy of ± 6 μm was obtained for the target value of ± 10 μm.

【００５５】溝間のピッチに高い精度が要求されると、
溝を１個、１個溝加工を行うことになるが、線状陰極の
ピッチ精度を決める規制部材の溝ピッチを機械加工の精
度で得ることができるため各線状陰極のピッチ精度（±
１０μｍ程度）を得ることができる。When high precision is required for the pitch between the grooves,
One groove is processed one by one, but since the groove pitch of the regulating member that determines the pitch accuracy of the linear cathode can be obtained with the accuracy of machining, the pitch accuracy of each linear cathode (±
10 μm) can be obtained.

【００５６】また線状陰極を架張する際、陰極支持部材
の端部における円周方向の接線の延長線の高さ以上の位
置に線状陰極との接触部を設けたバネ部材を設置し、バ
ネ部材の高さを制御することで、陰極支持部材の端部に
おける摩擦力を低減することができる。したがって線状
陰極に流す電流をオン／オフする際、線状陰極の動きを
滑らかにすることができ、陰極支持部材上で弛むことが
なく、各線状陰極のピッチ精度を保持する効果を有す
る。Further, when the linear cathode is stretched, a spring member having a contact portion with the linear cathode is installed at a position higher than the height of the extension of the tangential line in the circumferential direction at the end of the cathode supporting member. By controlling the height of the spring member, the frictional force at the end of the cathode support member can be reduced. Therefore, when the current flowing through the linear cathode is turned on / off, the movement of the linear cathode can be smoothed, and there is an effect that the pitch accuracy of each linear cathode is maintained without sagging on the cathode supporting member.

【００５７】図５（ａ）は本発明の線状陰極構体の第３
の実施例を示す斜視図である。図５（ａ）において、１
５は線状陰極、１６は固定部品、１７は陰極支持部材、
１８は規制部材、１９はバネ部材、２０は規制部材の固
定部材、２１は背面基板である。FIG. 5A shows a third embodiment of the linear cathode assembly according to the present invention.
It is a perspective view showing an example of. In FIG. 5A, 1
5 is a linear cathode, 16 is a fixed part, 17 is a cathode support member,
Reference numeral 18 is a regulating member, 19 is a spring member, 20 is a fixing member for the regulating member, and 21 is a rear substrate.

【００５８】ｅ方向とｆ方向からみた平面図と正面図
を、それぞれ図５（ｂ）、（ｃ）に示す。以下、図５を
用いて構成を説明する。A plan view and a front view seen from the e direction and the f direction are shown in FIGS. 5 (b) and 5 (c), respectively. The configuration will be described below with reference to FIG.

【００５９】芯線に巻線をスパイラル状に形成した後、
オキサイドを塗布した複数の線状陰極１５を平行に架張
した。線状陰極１５の構成は図６を用いて、後ほど詳細
に説明する。線状陰極１５はオキサイド塗布後、スプー
ルかドラムに巻いた状態で保管されており、所定の長さ
のみ切断し、架張準備を行う。架張準備には線状陰極１
５の両端にパッドと呼ばれる線状陰極１５の固定部品１
６を固定する。材質はＳＵＳ４３０、４２−６合金（４
２％Ｎｉ；６％Ｃｒ；Ｆｅ）等である。一枚の板材を折
曲げたり、二枚の板材を用いる。線状陰極１５を挟み、
固定部品１６をスポット溶接で溶接固定する。After forming the winding on the core wire in a spiral shape,
A plurality of linear cathodes 15 coated with oxide were stretched in parallel. The structure of the linear cathode 15 will be described later in detail with reference to FIG. The linear cathode 15 is stored in a state that it is wound around a spool or a drum after being coated with oxide, and is cut to a predetermined length to prepare for stretching. Wire cathode 1 for preparation
Fixed parts 1 of linear cathode 15 called pads on both ends of 5
Fix 6 The material is SUS430, 42-6 alloy (4
2% Ni; 6% Cr; Fe) and the like. Bend one plate or use two plates. Sandwiching the linear cathode 15,
The fixed part 16 is welded and fixed by spot welding.

【００６０】次に線状陰極１５を凸形の湾曲形状をなす
陰極支持部材１７に当接させた。陰極支持部材１７は予
め湾曲形状を形成される。陰極支持部材１７の金属芯金
にＡｌ2Ｏ3溶射膜を形成する。金属芯金の材料はＳＵＳ
４３０、インバー（３６％Ｎｉ；Ｆｅアンバー型合金）
等が用いられる。板厚は０．２ｍｍ程度である。Ａｌ 2
Ｏ3溶射膜の膜厚は３０μｍから２００μｍ程度μｍで
ある。Ａｌ2Ｏ3溶射膜は気孔を有し、断熱性、保温性が
ある。線状陰極１５が接触しても線状陰極１５は６５０
℃程度上昇しているが、温度低下は認められなかった。Next, the linear cathode 15 is formed into a convex curved shape.
It was brought into contact with the cathode support member 17. The cathode support member 17 is
Therefore, a curved shape is formed. Metal core of cathode supporting member 17
To Al2O3Form a sprayed film. The material of the metal core is SUS
430, Invar (36% Ni; Fe amber type alloy)
Etc. are used. The plate thickness is about 0.2 mm. Al 2
O3The thickness of the sprayed film is about 30 μm to 200 μm
is there. Al2O3The sprayed film has pores, and has heat insulation and heat retention.
is there. Even if the linear cathode 15 makes contact, the linear cathode 15 will be 650
Although the temperature increased by about ℃, the temperature did not decrease.

【００６１】線状陰極１５に当接し配列方向を規制する
壁面を有する規制部材１８と陰極支持部材１７上の線状
陰極１５の接触状態を規制するバネ部材１９を陰極支持
部材１７の両側に配置した。この場合、少なくとも線状
陰極１５の両端の固定場所の一方はバネ部材１９であ
り、他方は固定部材であってもよい。規制部材１８を規
制部材の取付部材２０に予めネジで固定して取り付け
る。取付部材２０の材質はＳＵＳ４３０、インバー（３
６％Ｎｉ；Ｆｅアンバー型合金）等である。線状陰極１
５をバネ部材１９に固定後、背面基板２１に固定する。
背面基板２１に固定する際、初めて線状陰極１５は陰極
支持部材１７に接触する。それまでは線状陰極１５は中
空に架張されている。A regulating member 18 having a wall surface that abuts on the linear cathode 15 and regulates the arrangement direction and spring members 19 for regulating the contact state of the linear cathode 15 on the cathode supporting member 17 are arranged on both sides of the cathode supporting member 17. did. In this case, at least one of the fixing locations at both ends of the linear cathode 15 may be the spring member 19 and the other may be the fixing member. The regulating member 18 is fixed to the attaching member 20 of the regulating member with screws in advance and attached. The material of the mounting member 20 is SUS430, Invar (3
6% Ni; Fe amber type alloy) and the like. Linear cathode 1
After fixing 5 to the spring member 19, it is fixed to the rear substrate 21.
The linear cathode 15 comes into contact with the cathode supporting member 17 for the first time when it is fixed to the back substrate 21. Until then, the linear cathode 15 is hollowly stretched.

【００６２】陰極支持部材３の曲率半径は５００００ｍ
ｍから１０００００ｍｍが適していることを実験で確認
した。陰極支持部材１７の曲率半径を形成するため、背
面基板２１を研削で削り出して所定の曲率半径を形成し
た。また別の方法として、リブを用いたり、ハニカム部
材を用いたりしても同様の効果を得ることが分かった。
線状陰極１５は電流のオン／オフにより伸縮する。その
時バネ部材１９のバネ性により伸縮の変位を吸収する。The radius of curvature of the cathode support member 3 is 50,000 m.
It was confirmed by experiments that m to 100,000 mm is suitable. In order to form the radius of curvature of the cathode supporting member 17, the back substrate 21 was ground by grinding to form a predetermined radius of curvature. As another method, it was found that the same effect can be obtained by using a rib or a honeycomb member.
The linear cathode 15 expands and contracts by turning on / off a current. At that time, the elasticity of the spring member 19 absorbs the expansion and contraction displacement.

【００６３】図５（ｂ）、（ｃ）を用いて構成を説明す
る。陰極支持部材１７の端部における円周方向の接線の
延長線の高さ以上の位置に線状陰極１５との接触部の底
面を設けた規制部材１８を設置した。線状陰極１５の両
端を規制部材１８に形成された壁面と底面に等接させる
ことにより、線状陰極１５が伸縮する際、線状陰極１５
が陰極支持部材１７表面を滑らかに動くことができる。
陰極支持部材１７の端部では線状陰極１５が摩擦力によ
り動きを止めることがない。その結果、線状陰極１５の
位置精度は保持される。The configuration will be described with reference to FIGS. 5 (b) and 5 (c). A regulating member 18 provided with a bottom surface of a contact portion with the linear cathode 15 was installed at a position equal to or higher than the height of the extension of the tangential line in the circumferential direction at the end of the cathode supporting member 17. When the linear cathode 15 expands and contracts by equidistantly contacting both ends of the linear cathode 15 with the wall surface and the bottom surface formed on the regulating member 18, the linear cathode 15
Can move smoothly on the surface of the cathode support member 17.
At the end of the cathode supporting member 17, the linear cathode 15 does not stop its movement due to frictional force. As a result, the positional accuracy of the linear cathode 15 is maintained.

【００６４】本発明は線状陰極１５の軸線に対して規制
壁面が同方向になるように一対の規制部材１８を配設し
たことを特徴とする線状陰極構体である。規制部材１８
の溝に添うように線状陰極１５を架張する。線状陰極１
５の軸線に対して規制壁面が同方向になるように一対の
規制部材１８を配設することにより、線状陰極１５の変
位方向が一方向のみになり、かつ大きさとしてバネの変
位により、線状陰極１５の変位方向を是正する働きがあ
る。線状陰極１５を架張し、陰極支持部材１７に接触さ
せた後、オン／オフさせ、線状陰極１５の位置精度を測
定評価した。目標値±１０μｍに対して±６μｍの精度
が得られた。The present invention is a linear cathode assembly characterized in that a pair of restricting members 18 are arranged such that the restricting wall surfaces are in the same direction with respect to the axis of the linear cathode 15. Regulation member 18
The linear cathode 15 is stretched along the groove. Linear cathode 1
By disposing the pair of restricting members 18 so that the restricting wall surfaces are in the same direction with respect to the axis of 5, the displacement direction of the linear cathode 15 is only one direction, and due to the displacement of the spring as a size, It has a function of correcting the displacement direction of the linear cathode 15. The linear cathode 15 was stretched, brought into contact with the cathode supporting member 17, and then turned on / off to measure and evaluate the positional accuracy of the linear cathode 15. An accuracy of ± 6 μm was obtained for the target value of ± 10 μm.

【００６５】溝間のピッチに高い精度が要求されると、
溝を１個、１個溝加工を行うことになるが、線状陰極の
ピッチ精度を決める規制部材の溝ピッチを機械加工の精
度で得ることができるため各線状陰極のピッチ精度（±
１０μｍ程度）を得ることができる。また線状陰極を架
張する際、陰極支持部材の端部における円周方向の接線
の延長線の高さ以上の位置に線状陰極との接触部を設け
たバネ部材を設置し、バネ部材の高さを制御すること
で、陰極支持部材の端部における摩擦力を低減すること
ができる。したがって線状陰極に流す電流をオン／オフ
する際、線状陰極の動きを滑らかにすることができ、陰
極支持部材上で弛むことがなく、各線状陰極のピッチ精
度を保持する効果を有する。When high precision is required for the pitch between the grooves,
One groove is processed one by one, but since the groove pitch of the regulating member that determines the pitch accuracy of the linear cathode can be obtained with the accuracy of machining, the pitch accuracy of each linear cathode (±
10 μm) can be obtained. Further, when the linear cathode is stretched, a spring member provided with a contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member is installed. The frictional force at the end of the cathode supporting member can be reduced by controlling the height of the cathode supporting member. Therefore, when the current flowing through the linear cathode is turned on / off, the movement of the linear cathode can be smoothed, and there is an effect that the pitch accuracy of each linear cathode is maintained without sagging on the cathode supporting member.

【００６６】図６は、線状陰極部の芯線２２に巻回され
た巻線２３とオキサイド２４が、線状陰極の両端部にお
いては除去された状態を示した断面図である。なお、２
４はオキサイド、２５は規制部材、２６は陰極支持部
材、２７はバネ部材である。FIG. 6 is a sectional view showing a state in which the winding wire 23 and the oxide 24 wound around the core wire 22 of the linear cathode portion are removed at both ends of the linear cathode portion. 2
Reference numeral 4 is an oxide, 25 is a regulating member, 26 is a cathode supporting member, and 27 is a spring member.

【００６７】巻線２３を除去すると同時にオキサイド２
４を除去することにより、オキサイド２４が陰極支持部
材２６に当接する際、巻線２３は陰極支持部材２６の範
囲内のみに形成することができる。この当接する部分の
オキサイド２４は剥されており、芯線２２が規制部材２
５に直接接触している。ここのオキサイド２４を剥すの
は、他の部品の影響で放電することを防止する上で非常
に効果的である。規制部材２５の材質は、アルミナ、窒
化珪素、炭化珪素、硬質ガラス等のセラミックスであ
る。陰極支持部材２６は、芯線２２と巻線２３にオキサ
イド２４を塗布した線状陰極を支持する部材である。線
状陰極の位置として、画面中央部はオキサイドが塗布さ
れているが、端面部はオキサイドが剥されている。芯金
表面にアルミナ溶射膜等を形成する。膜厚は３０μｍか
ら２００μｍ程度が適している。画面領域内に位置する
線状陰極は芯線２２に巻線２３をスパイラル状に形成し
た後、オキサイド２４が塗布されている。画面領域外に
位置する線状陰極は芯線２２のみである。芯線２２の両
端をバネ部材２７に固定する。したがって、陰極支持部
材２６に当接する芯線２２には巻線２３がないため、巻
線２３の断線は生じない。その結果、巻線２３の断線に
よる破片の飛散の影響を受けることがないので画質の劣
化は生じない。At the same time as removing the winding 23, the oxide 2
By removing No. 4, when the oxide 24 contacts the cathode supporting member 26, the winding wire 23 can be formed only within the range of the cathode supporting member 26. The oxide 24 at this abutting portion is peeled off, and the core wire 22 is
5 is in direct contact. The removal of the oxide 24 here is very effective in preventing discharge due to the influence of other parts. The material of the regulating member 25 is ceramics such as alumina, silicon nitride, silicon carbide, hard glass. The cathode supporting member 26 is a member that supports the linear cathode in which the core wire 22 and the winding wire 23 are coated with oxide 24. As the position of the linear cathode, oxide is applied to the central part of the screen, but oxide is stripped off from the end face part. An alumina sprayed film or the like is formed on the surface of the cored bar. A suitable film thickness is 30 μm to 200 μm. In the linear cathode located in the screen area, the winding wire 23 is spirally formed on the core wire 22, and then the oxide 24 is applied. The core 22 is the only linear cathode located outside the screen area. Both ends of the core wire 22 are fixed to the spring members 27. Therefore, since the core wire 22 that contacts the cathode support member 26 does not have the winding wire 23, no disconnection of the winding wire 23 occurs. As a result, the image quality is not deteriorated because it is not affected by the scattering of the fragments due to the disconnection of the winding wire 23.

【００６８】以上のように本実施例によれば、芯線２２
と、巻線２３と、オキサイド２４とを備え、芯線２２に
スパイラル状に巻線２３を形成し、巻線２３を形成した
箇所付近のみにオキサイド２４を形成し、その両端部分
には巻線２３およびオキサイド２４が除去され、かつ巻
線２３が陰極支持部材２６の範囲内のみに形成されたこ
とを特徴とする線状陰極を設けることにより、芯線２２
の外径のみでピッチが決定し、かつ陰極支持部材２６お
よび規制部材２５での当接部分は芯線２２であるため巻
線２３は断線させることがないという効果が得られる。As described above, according to this embodiment, the core wire 22
A winding wire 23 and an oxide 24, and the winding wire 23 is formed in a spiral shape on the core wire 22, and the oxide 24 is formed only in the vicinity of the position where the winding wire 23 is formed. The core wire 22 is provided by providing a linear cathode characterized in that the oxide 24 and the oxide 24 are removed and the winding 23 is formed only within the range of the cathode supporting member 26.
The pitch is determined only by the outer diameter of the wire, and the contact portion of the cathode supporting member 26 and the regulating member 25 is the core wire 22, so that the winding wire 23 is not broken.

【００６９】図７、図８、図９は本発明の実施例におけ
る線状陰極構体の斜視図を示すものである。図７、図
８、図９において、２８は第２の規制部材、２９は第１
の規制部材、３０は規制部材の固定部材、３１はバネ部
材、３２は線状陰極、３３は固定部品、３４は線状陰極
の支持部材、３５は背面電極である。FIG. 7, FIG. 8 and FIG. 9 are perspective views of the linear cathode assembly according to the embodiment of the present invention. In FIGS. 7, 8 and 9, 28 is a second regulating member and 29 is a first regulating member.
Of the restriction member, 30 is a fixing member of the restriction member, 31 is a spring member, 32 is a linear cathode, 33 is a fixed part, 34 is a supporting member for the linear cathode, and 35 is a back electrode.

【００７０】また本発明の線状陰極の架張方法は、芯線
と巻線とオキサイドとを有し平行に架張した複数の線状
陰極を当接させた凸形の湾曲形状をなす陰極支持部材
と、線状陰極に当接し配列方向を規制する壁面を有する
第１の規制部材と、陰極支持部材上の線状陰極の接触状
態を規制する第２の規制部材とを備え、図７を用いて、
工程を説明する。まず陰極支持部材の端部における円周
方向の接線の延長線の高さ以上の位置に線状陰極との接
触部を設けた第２の規制部材２８を陰極支持部材と第１
の規制部材との間に固定する工程である。第２の規制部
材２８は第１の規制部材２９と規制部材の固定部材３０
の間に固定する。これは、図１１の中でも説明するが、
規制部材の固定部材３０の両面に第２の規制部材２８と
第１の規制部材２９を固定しても同様の結果を得ること
ができる。第１の規制部材２９にバネ部材３１を固定す
る。Further, the method of stretching the linear cathode of the present invention is a cathode support having a convex curved shape in which a plurality of linear cathodes having a core wire, a winding and an oxide and stretched in parallel are brought into contact with each other. 7 includes a member, a first restricting member having a wall surface that contacts the linear cathode and restricts the arrangement direction, and a second restricting member that restricts the contact state of the linear cathode on the cathode supporting member, and FIG. make use of,
The process will be described. First, the second restricting member 28 provided with a contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end portion of the cathode supporting member is connected to the cathode supporting member and
This is a step of fixing between the control member and the control member. The second restricting member 28 includes a first restricting member 29 and a restricting member fixing member 30.
To fix in between. This will be explained in FIG. 11,
Similar results can be obtained by fixing the second restricting member 28 and the first restricting member 29 to both surfaces of the restricting member fixing member 30. The spring member 31 is fixed to the first restriction member 29.

【００７１】図８を用いて、次工程を説明する。線状陰
極３２を架張し第１の規制部材２９の壁面と第２の規制
部材２８に当接させる工程である。線状陰極３２の両端
をバネ部材３１に固定する際、固定部品３３を用いる。
架張準備には線状陰極３２の両端にパッドと呼ばれる線
状陰極３２の固定部品３３を固定する。材質はＳＵＳ４
３０、４２−６合金（４２％Ｎｉ；６％Ｃｒ；Ｆｅ）等
である。一枚の板材を折曲げたり、二枚の板材を用い
る。線状陰極３２を挟み、固定部品３３をスポット溶接
で溶接固定する。The next step will be described with reference to FIG. In this step, the linear cathode 32 is stretched and brought into contact with the wall surface of the first regulating member 29 and the second regulating member 28. When fixing both ends of the linear cathode 32 to the spring member 31, fixing parts 33 are used.
To prepare for the stretching, fixing parts 33 of the linear cathode 32 called pads are fixed to both ends of the linear cathode 32. Material is SUS4
30, 42-6 alloy (42% Ni; 6% Cr; Fe) and the like. Bend one plate or use two plates. The linear cathode 32 is sandwiched, and the fixing component 33 is fixed by welding by spot welding.

【００７２】次に線状陰極３２の軸線に対して規制壁面
が同方向になるように一対の第１の規制部材２９を配設
する工程がある。線状陰極３２の両端を固定する際、少
なくとも一方はバネ部材３１である固定部材を用いる。
そのバネ部材３１を固定する第１の規制部材２９を線状
陰極３２の両端に固定するが、その溝の規制壁面が同方
向になるように固定する。Next, there is a step of disposing the pair of first restricting members 29 so that the restricting wall surfaces are in the same direction with respect to the axis of the linear cathode 32. When fixing both ends of the linear cathode 32, at least one of the fixing members is the spring member 31.
The first restricting member 29 for fixing the spring member 31 is fixed to both ends of the linear cathode 32, and the restricting wall surfaces of the groove are fixed in the same direction.

【００７３】図９を用いて線状陰極を陰極支持部材に当
接させる工程を説明する。線状陰極３２を凸形の湾曲形
状をなす陰極支持部材３４に当接させた。陰極支持部材
３４は予め湾曲形状を形成される。陰極支持部材３４の
金属芯金にＡｌ2Ｏ3溶射膜を形成する。金属芯金の材料
はＳＵＳ４３０、インバー（３６％Ｎｉ；Ｆｅアンバー
型合金）等が用いられる。板厚は０．２ｍｍ程度であ
る。Ａｌ2Ｏ3溶射膜の膜厚は３０μｍから２００μｍ程
度である。Ａｌ2Ｏ3溶射膜は気孔を有し、断熱性、保温
性がある。線状陰極３２が接触しても線状陰極３２は６
５０℃程度上昇しているが、温度低下は認められなかっ
た。固定部材３０の材質はＳＵＳ４３０、インバー（３
６％Ｎｉ；Ｆｅアンバー型合金）等である。線状陰極３
２をバネ部材３１に固定後、背面基板３５に固定する。
背面基板３５に固定する際、初めて線状陰極３２は陰極
支持部材３４に接触する。それまでは線状陰極３２は中
空に架張されている。陰極支持部材３４の曲率半径は５
００００ｍｍから１０００００ｍｍが適していることを
実験で確認した。陰極支持部材３４の曲率半径を形成す
るため、背面基板３５を研削で削り出して所定の曲率半
径を形成した。また別の方法として、リブを用いたり、
ハニカム部材を用いたりしても同様の効果を得ることが
分かった。The step of bringing the linear cathode into contact with the cathode supporting member will be described with reference to FIG. The linear cathode 32 was brought into contact with the cathode supporting member 34 having a convex curved shape. The cathode supporting member 34 is formed in a curved shape in advance. An Al 2 O 3 sprayed film is formed on the metal core of the cathode support member 34. As the material of the metal core bar, SUS430, Invar (36% Ni; Fe amber type alloy) or the like is used. The plate thickness is about 0.2 mm. The film thickness of the Al 2 O 3 sprayed film is about 30 to 200 μm. The Al 2 O 3 sprayed film has pores and is heat insulating and heat retaining. Even if the linear cathode 32 comes into contact with the linear cathode 32,
Although it increased by about 50 ° C, no temperature decrease was observed. The material of the fixing member 30 is SUS430, Invar (3
6% Ni; Fe amber type alloy) and the like. Linear cathode 3
After fixing 2 to the spring member 31, it is fixed to the back substrate 35.
The linear cathode 32 comes into contact with the cathode supporting member 34 for the first time when it is fixed to the back substrate 35. Until then, the linear cathode 32 is suspended in the air. The radius of curvature of the cathode support member 34 is 5
Experiments have confirmed that 0000 mm to 100,000 mm is suitable. In order to form the radius of curvature of the cathode supporting member 34, the back substrate 35 was ground to form a predetermined radius of curvature. Alternatively, using ribs,
It has been found that the same effect can be obtained by using a honeycomb member.

【００７４】線状陰極３２は電流のオン／オフにより伸
縮する。その時、バネ部材３１のバネ性により伸縮の変
位を吸収する。陰極支持部材３２の端部における円周方
向の接線の延長線の高さ以上の位置に線状陰極３２との
接触部を設けた第２の規制部材２８を陰極支持部材３４
と第１の規制部材２９の間に設置した。このことによ
り、線状陰極３２が伸縮する際、線状陰極３２が陰極支
持部材３４表面を滑らかに動くことができる。陰極支持
部材３４の端部では線状陰極３２が摩擦力により動きを
止めることがない。その結果、線状陰極３２の位置精度
は保持される。第２の規制部材２８を用いることにより
陰極支持部材３４の端部の高さと第２の規制部材２８の
接触部の高さの位置を固定することができ、安定した位
置関係を保持できる。また、第２の規制部材２８を設け
ることで、接触部の高さを微調整することができる。The linear cathode 32 expands and contracts when the current is turned on / off. At that time, the elasticity of the spring member 31 absorbs the expansion and contraction displacement. The second supporting member 28 having a contact portion with the linear cathode 32 at a position equal to or higher than the height of the extension of the tangential line in the circumferential direction at the end portion of the cathode supporting member 32 is attached to the cathode supporting member 34.
And the first regulating member 29. This allows the linear cathode 32 to move smoothly on the surface of the cathode supporting member 34 when the linear cathode 32 expands and contracts. At the end of the cathode supporting member 34, the linear cathode 32 does not stop its movement due to frictional force. As a result, the positional accuracy of the linear cathode 32 is maintained. By using the second regulating member 28, the height of the end portion of the cathode supporting member 34 and the height of the contact portion of the second regulating member 28 can be fixed, and a stable positional relationship can be maintained. Further, by providing the second regulating member 28, the height of the contact portion can be finely adjusted.

【００７５】本発明は線状陰極３２の軸線に対して規制
壁面が同方向になるように一対の第１の規制部材２９を
配設したことを特徴とする線状陰極３２の架張方法であ
る。第１の規制部材２９の溝に添うように線状陰極３２
を架張する。線状陰極３２の軸線に対して規制壁面が同
方向になるように一対の第１の規制部材２９を配設する
ことにより、線状陰極３２の変位方向が一方向のみにな
り、かつ大きさとしてバネの変位により、線状陰極３２
の変位方向を是正する働きがある。線状陰極３２を架張
し、陰極支持部材３４に接触させた後、オン／オフさ
せ、線状陰極３２の位置精度を測定評価した。目標値±
１０μｍに対して±６μｍの精度が得られた。The present invention provides a method of stretching the linear cathode 32, characterized in that a pair of first regulating members 29 are arranged so that the regulating wall surfaces are in the same direction with respect to the axis of the linear cathode 32. is there. The linear cathode 32 is fitted along the groove of the first restriction member 29.
Stretch. By disposing the pair of first restricting members 29 so that the restricting wall surfaces are in the same direction with respect to the axis of the linear cathode 32, the displacement direction of the linear cathode 32 is only one direction and the size is large. As a result of the displacement of the spring, the linear cathode 32
Has the function of correcting the displacement direction of. The linear cathode 32 was stretched, brought into contact with the cathode supporting member 34, and then turned on / off, and the positional accuracy of the linear cathode 32 was measured and evaluated. Target value ±
An accuracy of ± 6 μm was obtained for 10 μm.

【００７６】溝間のピッチに高い精度が要求されると、
溝を１個、１個溝加工を行うことになるが、線状陰極３
２のピッチ精度を決める第１の規制部材２９の溝ピッチ
を機械加工の精度で得ることができるため各線状陰極３
２のピッチ精度（±１０μｍ程度）を得ることができ、
また線状陰極３２を架張する際、陰極支持部材３４の端
部における円周方向の接線の延長線の高さ以上の位置に
線状陰極３２との接触部を設けた第２の規制部材２８を
設置し、第２の規制部材２８の高さを制御することで、
陰極支持部材３４の端部における摩擦力を低減すること
ができ、しかも陰極支持部材３４の端部の高さと第２の
規制部材２８の接触部の高さを一定に保持できるので、
線状陰極３２に流す電流をオン／オフする際、線状陰極
３２の動きを滑らかにすることができ、陰極支持部材３
４上で弛むことがなく、各線状陰極３２のピッチ精度を
保持する効果を有する構成を提供するものである。When high precision is required for the pitch between the grooves,
Grooves will be processed one by one, but the linear cathode 3
Since the groove pitch of the first regulating member 29 that determines the pitch accuracy of 2 can be obtained with the accuracy of machining, each linear cathode 3
A pitch accuracy of 2 (± 10 μm) can be obtained,
Further, when the linear cathode 32 is stretched, the second regulating member is provided with a contact portion with the linear cathode 32 at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end portion of the cathode supporting member 34. By installing 28 and controlling the height of the second regulating member 28,
Since the frictional force at the end of the cathode support member 34 can be reduced, and moreover, the height of the end of the cathode support member 34 and the height of the contact portion of the second restriction member 28 can be kept constant,
When the current flowing through the linear cathode 32 is turned on / off, the movement of the linear cathode 32 can be smoothed, and the cathode supporting member 3
The present invention provides a structure having the effect of maintaining the pitch accuracy of each linear cathode 32 without sagging on the wire 4.

【００７７】図１０、図１１は本発明の実施例における
線状陰極構体の斜視図を示すものである。図１０におい
て、３６は背面基板、３７は第２の規制部材、３８は固
定部材である。図１０において、３９は第２の規制部
材、４０は固定部材、４１は第１の規制部材、４２は線
状陰極である。10 and 11 are perspective views of the linear cathode assembly according to the embodiment of the present invention. In FIG. 10, 36 is a back substrate, 37 is a second regulating member, and 38 is a fixing member. In FIG. 10, 39 is a second regulating member, 40 is a fixing member, 41 is a first regulating member, and 42 is a linear cathode.

【００７８】図１から図９まで説明してきた本発明の線
状陰極構体および線状陰極の架張方法の中で、陰極支持
部材の端部における円周方向の接線の延長線の高さ以上
の位置に線状陰極との接触部を有する第２の規制部材を
設ける方法として、他の方法を説明する。In the linear cathode structure and the method of extending the linear cathode according to the present invention described with reference to FIGS. 1 to 9, the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member is not less than Another method will be described as a method of providing the second regulating member having the contact portion with the linear cathode at the position.

【００７９】図１０は背面基板３６上に第２の規制部材
３７を設けた構成の斜視図である。第２の規制部材３７
の形状は円筒である。絶縁部材として、耐熱性と出ガス
劣化のないものとして、セラミックスが使用される。特
にＡｌ2Ｏ3が加工性もよく、表面粗度も光学研磨並の仕
上がりである。第２の規制部材３７を固定部品３８で背
面基板３６に固定する。固定部品３８は板厚０．１ｍｍ
程度の４２−６合金（４２％Ｎｉ；６％Ｃｒ；Ｆｅ）や
ＳＵＳ４３０を用いた。背面基板３６と固定部品３８を
スポット溶接で固定する。背面基板３６の端部を削り出
して、第２の規制部材３７を固定する。背面基板３６の
削り出し量と第２の規制部材３７の外径の大きさを選択
することにより、高さの微調整ができる。FIG. 10 is a perspective view of a structure in which the second restricting member 37 is provided on the rear substrate 36. Second regulation member 37
The shape of is a cylinder. As the insulating member, ceramics is used as a member having heat resistance and no deterioration of gas emission. Particularly, Al 2 O 3 has good workability and has a surface roughness comparable to that of optical polishing. The second restricting member 37 is fixed to the rear substrate 36 with a fixing component 38. The fixed component 38 has a plate thickness of 0.1 mm
A 42-6 alloy (42% Ni; 6% Cr; Fe) or SUS430 of about 4 was used. The rear substrate 36 and the fixing component 38 are fixed by spot welding. The end of the back substrate 36 is cut out and the second regulating member 37 is fixed. The height can be finely adjusted by selecting the cut-out amount of the rear substrate 36 and the size of the outer diameter of the second restriction member 37.

【００８０】図１１は第２の規制部材３９を設けた線状
陰極構体の斜視図である。第２の規制部材３９は固定部
材４０にネジを用いて固定されており、第１の規制部材
４１もまた固定部材４０にネジを用いて固定されてい
る。第１の規制部材４１と第２の規制部材３９を分けて
固定するのは、高さの微調整および各線状陰極４２のピ
ッチ位置の微調整を各々で行えることによる。FIG. 11 is a perspective view of the linear cathode assembly provided with the second regulating member 39. The second regulating member 39 is fixed to the fixing member 40 with screws, and the first regulating member 41 is also fixed to the fixing member 40 with screws. The reason why the first restricting member 41 and the second restricting member 39 are separately fixed is that fine adjustment of the height and fine adjustment of the pitch position of each linear cathode 42 can be performed respectively.

【００８１】以上説明してきたように、本発明の線状陰
極構体および線状陰極の架張方法を用いることにより、
次の様な効果を得ることができた。As described above, by using the linear cathode structure and the method of stretching the linear cathode of the present invention,
We were able to obtain the following effects.

【００８２】溝間のピッチに高い精度が要求されると、
溝を１個、１個溝加工を行うことになるが、線状陰極の
ピッチ精度を決める規制部材の溝ピッチを機械加工の精
度で得ることができるため各線状陰極のピッチ精度（±
１０μｍ程度）を得ることができる。また線状陰極を架
張する際、陰極支持部材の端部における円周方向の接線
の延長線の高さ以上の位置に線状陰極との接触部を設け
たバネ部材を設置し、バネ部材の高さを制御すること
で、陰極支持部材の端部における摩擦力を低減すること
ができる。したがって線状陰極に流す電流をオン／オフ
する際、線状陰極の動きを滑らかにすることができ、陰
極支持部材上で弛むことがなく、各線状陰極のピッチ精
度を保持する効果を有する。When high precision is required for the pitch between the grooves,
One groove is processed one by one, but since the groove pitch of the regulating member that determines the pitch accuracy of the linear cathode can be obtained with the accuracy of machining, the pitch accuracy of each linear cathode (±
10 μm) can be obtained. Further, when the linear cathode is stretched, a spring member provided with a contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangential line in the circumferential direction at the end of the cathode supporting member is installed. The frictional force at the end of the cathode supporting member can be reduced by controlling the height of the cathode supporting member. Therefore, when the current flowing through the linear cathode is turned on / off, the movement of the linear cathode can be smoothed, and there is an effect that the pitch accuracy of each linear cathode is maintained without sagging on the cathode supporting member.

【００８３】[0083]

【発明の効果】以上、説明した通り、本発明の線状陰極
構体によれば、複数本の線状陰極をピッチ精度が±１０
μｍ程度で配置することが可能となる。更に、線状陰極
に流す電流をオン／オフした際にも、陰極支持部材上で
弛むことがなく、各線状陰極のピッチ精度を保持するこ
とができる。As described above, according to the linear cathode structure of the present invention, the pitch accuracy of a plurality of linear cathodes is ± 10.
It becomes possible to dispose in the order of μm. Further, even when the current flowing through the linear cathodes is turned on / off, the linear pitches of the linear cathodes can be maintained without sagging on the cathode supporting member.

【００８４】その結果、良好な画像品質を安定に実現で
きる。As a result, good image quality can be stably realized.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の線状陰極構体の第１の実施例における
斜視図FIG. 1 is a perspective view of a linear cathode assembly according to a first embodiment of the present invention.

【図２】（ａ）は、同実施例における正面図 （ｂ）は、同実施例における平面図FIG. 2A is a front view of the same embodiment, and FIG. 2B is a plan view of the same embodiment.

【図３】本発明の第２の実施例の線状陰極構体を示す斜
視図FIG. 3 is a perspective view showing a linear cathode assembly according to a second embodiment of the present invention.

【図４】（ａ）は、同実施例における正面図 （ｂ）は、同実施例における平面図FIG. 4A is a front view of the same embodiment, and FIG. 4B is a plan view of the same embodiment.

【図５】（ａ）は、本発明の第３の実施例の線状陰極構
体の斜視図 （ｂ）は、同実施例の正面図 （ｃ）は、同実施例の平面図5A is a perspective view of a linear cathode assembly according to a third embodiment of the present invention, FIG. 5B is a front view of the same embodiment, and FIG. 5C is a plan view of the same embodiment.

【図６】本発明の線状陰極構体の上記各実施例における
端部詳細図FIG. 6 is a detailed view of an end portion of each of the above-described embodiments of the linear cathode assembly of the present invention.

【図７】本発明の線状陰極の架張方法の一実施例の工程
説明図FIG. 7 is a process explanatory view of an example of a method for stretching a linear cathode of the present invention.

【図８】同実施例方法の工程説明図FIG. 8 is a process explanatory view of the method of the embodiment.

【図９】同実施例方法の工程説明図FIG. 9 is a process explanatory view of the method of the embodiment.

【図１０】本発明の線状陰極構体の更に他の実施例を示
す斜視図FIG. 10 is a perspective view showing still another embodiment of the linear cathode assembly according to the present invention.

【図１１】本発明の線状陰極構体の更に他の実施例を示
す斜視図FIG. 11 is a perspective view showing still another embodiment of the linear cathode assembly according to the present invention.

【図１２】本発明の線状陰極構体を適用した画像表示装
置の斜視図FIG. 12 is a perspective view of an image display device to which the linear cathode structure of the present invention is applied.

【図１３】従来の画像表示装置の構成を示す斜視図FIG. 13 is a perspective view showing a configuration of a conventional image display device.

【図１４】従来の他の画像表示装置の構成を示す断面図FIG. 14 is a cross-sectional view showing the configuration of another conventional image display device.

【図１５】従来における線状陰極の支持構成を示す部分
平面図FIG. 15 is a partial plan view showing a conventional linear cathode supporting structure.

【符号の説明】[Explanation of symbols]

１ 線状陰極 ２ 固定部品 ３ 陰極支持部材 ４ 規制部材 ５ バネ部材 ６ 固定部材 ７ 背面基板 ８ 線状陰極 ９ 固定部品 １０ 陰極支持部材 １１ 第１の規制部材 １２ 第２の規制部材 １３ バネ部材 １４ 固定部材 １５ 背面基板 １６ 固定部品 １７ 陰極支持部材 １８ 規制部材 １９ バネ部材 ２０ 固定部材 ２１ 背面基板 ２２ 芯線 ２３ 巻線 ２４ オキサイド ２５ 規制部材 ２６ 陰極支持部材 ２７ バネ部材 ２８ 第２の規制部材 ２９ 第１の規制部材 ３０ 固定部材 ３１ バネ部材 ３２ 線状陰極 ３３ 固定部品 ３４ 陰極支持部材 ３５ 背面基板 ３６ 背面基板 ３７ 第２の規制部材 ３８ 固定部品 ３９ 第２の規制部材 ４０ 固定部材 ４１ 第１の規制部材 ４２ 線状陰極 ４３ 線状陰極 ４４ フィラメント支持体 ４５ リード端子 ４６ Ｖ溝 ４７ 衝立 ４８ 陽極 ４９ 線状陰極 ５０ 固定座 ５１ 背面電極 ５２ 絶縁支持体 ５３ 斜め溝 ５４ 絶縁物 ５５ 制御電極 DESCRIPTION OF SYMBOLS 1 linear cathode 2 fixed parts 3 cathode supporting member 4 regulating member 5 spring member 6 fixing member 7 back substrate 8 linear cathode 9 fixing part 10 cathode supporting member 11 first regulating member 12 second regulating member 13 spring member 14 Fixing member 15 Rear substrate 16 Fixing component 17 Cathode supporting member 18 Regulation member 19 Spring member 20 Fixing member 21 Rear substrate 22 Core wire 23 Winding 24 Oxide 25 Regulation member 26 Cathode supporting member 27 Spring member 28 Second regulating member 29 First Regulating member 30 fixing member 31 spring member 32 linear cathode 33 fixing component 34 cathode supporting member 35 rear substrate 36 rear substrate 37 second regulating member 38 fixing component 39 second regulating member 40 fixing member 41 first regulating member 42 linear cathode 43 linear cathode 44 filament support 45 lead terminal 46 V groove 47 collision 48 anode 49 linear cathodes 50 fixed seat 51 back electrode 52 insulating support 53 obliquely grooves 54 insulator 55 control electrode

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】芯線と巻線とオキサイドとを有し平行に架
張した複数の線状陰極を凸形の湾曲形状をなす陰極支持
部材に当接させ、前記線状陰極に当接し配列方向を規制
する壁面を有する規制部材と前記陰極支持部材上の前記
線状陰極の接触状態を規制するバネ部材を前記陰極支持
部材の両側に配置し、前記陰極支持部材の端部における
円周方向の接線の延長線の高さ以上の位置に前記線状陰
極との接触部を設けた前記バネ部材を設置し、前記線状
陰極の軸線に対して規制壁面が同方向になるように一対
の前記規制部材を配設したことを特徴とする線状陰極構
体。1. A plurality of linear cathodes having a core wire, a winding wire and an oxide and extending in parallel are brought into contact with a cathode supporting member having a convex curved shape, and the linear cathodes are brought into contact with the linear cathodes and arranged in an array direction. A spring member for restricting the contact state of the linear cathode on the cathode support member and a restriction member having a wall surface for restricting the cathode support member is disposed on both sides of the cathode support member, in the circumferential direction at the end of the cathode support member. The spring member provided with a contact portion with the linear cathode is provided at a position equal to or higher than the height of the extension line of the tangent line, and the pair of the regulating walls are arranged in the same direction with respect to the axis of the linear cathode. A linear cathode assembly having a regulating member. 【請求項２】芯線と巻線とオキサイドとを有し平行に架
張した複数の線状陰極を凸形の湾曲形状をなす陰極支持
部材に当接させ、前記線状陰極に当接し配列方向を規制
する壁面を有する第１の規制部材と前記陰極支持部材上
の前記線状陰極の接触状態を規制する第２の規制部材を
前記陰極支持部材の両側に配置し、前記陰極支持部材の
端部における円周方向の接線の延長線の高さ以上の位置
に前記線状陰極との接触部を設けた前記第２の規制部材
を前記陰極支持部材と前記第１の規制部材との間に設置
し、前記線状陰極の軸線に対して規制壁面が同方向にな
るように一対の前記第１の規制部材を配設したことを特
徴とする線状陰極構体。2. A plurality of linear cathodes having a core wire, a winding wire and an oxide which are stretched in parallel are brought into contact with a cathode support member having a convex curved shape, and the linear cathodes are brought into contact with the linear cathodes and arranged in the arrangement direction. A first restricting member having a wall surface for restricting the temperature and a second restricting member restricting the contact state of the linear cathode on the cathode supporting member are arranged on both sides of the cathode supporting member, and the end of the cathode supporting member is disposed. Between the cathode supporting member and the first restricting member, the second restricting member having a contact portion with the linear cathode at a position equal to or higher than a height of an extension line of a tangential line in the circumferential direction in the portion. A linear cathode assembly, wherein the linear cathode assembly is installed, and a pair of the first restricting members is arranged such that the restricting wall surfaces are in the same direction with respect to the axis of the linear cathode. 【請求項３】芯線と巻線とオキサイドとを有し平行に架
張した複数の線状陰極を凸形の湾曲形状をなす陰極支持
部材に当接させ、前記線状陰極に当接し配列方向を規制
する壁面と前記陰極支持部材上の前記線状陰極の接触状
態を規制する底面とを有する規制部材を前記陰極支持部
材の両側に配置し、前記陰極支持部材の端部における円
周方向の接線の延長線の高さ以上の位置に前記線状陰極
との接触部の底面を設けた前記規制部材を設置し、前記
線状陰極の両端を前記規制部材に形成された壁面と底面
に当接させ、軸線に対して規制壁面が同方向になるよう
に一対の前記規制部材を配設したことを特徴とする線状
陰極構体。3. A plurality of linear cathodes having a core wire, a winding wire and an oxide which are stretched in parallel are brought into contact with a cathode supporting member having a convex curved shape, and the linear cathodes are brought into contact with the linear cathodes and arranged in an arrangement direction. Arranged on both sides of the cathode supporting member, a regulating member having a wall surface that regulates and a bottom surface that regulates the contact state of the linear cathode on the cathode supporting member, and in the circumferential direction at the end of the cathode supporting member. The regulating member having the bottom surface of the contact portion with the linear cathode is installed at a position higher than the height of the extension line of the tangent line, and both ends of the linear cathode contact the wall surface and the bottom surface formed on the regulating member. A linear cathode assembly characterized in that a pair of the regulating members are arranged so that they are in contact with each other and the regulating wall faces in the same direction with respect to the axis. 【請求項４】線状陰極の両端が、巻線が陰極支持部材の
範囲内のみに形成された前記線状陰極の両端であること
を特徴とする請求項１、２または３記載の線状陰極構
体。4. The linear cathode according to claim 1, wherein both ends of the linear cathode are both ends of the linear cathode in which windings are formed only within the range of the cathode supporting member. Cathode structure. 【請求項５】芯線と巻線とオキサイドとを有し平行に架
張した複数の線状陰極を当接させた凸形の湾曲形状をな
す陰極支持部材と、前記線状陰極に当接し配列方向を規
制する壁面を有する第１の規制部材と、前記陰極支持部
材上の前記線状陰極の接触状態を規制する第２の規制部
材とを備え、前記陰極支持部材の端部における円周方向
の接線の延長線の高さ以上の位置に前記線状陰極との接
触部を設けた前記第２の規制部材を前記陰極支持部材と
前記第１の規制部材との間に固定する工程と、前記線状
陰極を架張し前記第１の規制部材の壁面と前記第２の規
制部材に当接させる工程と、前記線状陰極の軸線に対し
て規制壁面が同方向になるように一対の前記第１の規制
部材を配設する工程と、前記線状陰極を前記陰極支持部
材に当接させる工程とからなることを特徴とする線状陰
極の架張方法。5. A cathode supporting member having a convex curved shape in which a plurality of linear cathodes having a core wire, a winding, and an oxide and stretched in parallel are in contact, and an array in contact with the linear cathodes. A first regulation member having a wall surface that regulates the direction, and a second regulation member that regulates the contact state of the linear cathode on the cathode support member, and a circumferential direction at the end of the cathode support member. Fixing the second regulating member provided with a contact portion with the linear cathode at a position equal to or higher than the height of the extension line of the tangent line between the cathode supporting member and the first regulating member, A step of stretching the linear cathode and bringing it into contact with the wall surface of the first restricting member and the second restricting member, and a pair of a pair of restricting wall surfaces in the same direction with respect to the axis of the linear cathode. A step of disposing the first regulating member, and a step of bringing the linear cathode into contact with the cathode supporting member. Stretched method of linear cathodes, characterized by comprising a.
JP464392A 1992-01-14 1992-01-14 Linear cathode constitution body and laying of linear cathode Pending JPH05190123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP464392A JPH05190123A (en) 1992-01-14 1992-01-14 Linear cathode constitution body and laying of linear cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP464392A JPH05190123A (en) 1992-01-14 1992-01-14 Linear cathode constitution body and laying of linear cathode

Publications (1)

Publication Number Publication Date
JPH05190123A true JPH05190123A (en) 1993-07-30

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Family Applications (1)

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JP464392A Pending JPH05190123A (en) 1992-01-14 1992-01-14 Linear cathode constitution body and laying of linear cathode

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JP2005158735A (en) * 2003-11-25 2005-06-16 Samsung Sdi Co Ltd Spacer supporting structure and spacer supporting method of flat display device
KR100516838B1 (en) * 2001-12-03 2005-09-26 후다바 덴시 고교 가부시키가이샤 Fluorescent luminous tube
JP2011243377A (en) * 2010-05-17 2011-12-01 Noritake Itron Corp Fluorescent display tube incorporating driver ic

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100516838B1 (en) * 2001-12-03 2005-09-26 후다바 덴시 고교 가부시키가이샤 Fluorescent luminous tube
JP2005158735A (en) * 2003-11-25 2005-06-16 Samsung Sdi Co Ltd Spacer supporting structure and spacer supporting method of flat display device
JP4572105B2 (en) * 2003-11-25 2010-10-27 三星エスディアイ株式会社 Spacer support structure and spacer support method for flat panel display device
JP2011243377A (en) * 2010-05-17 2011-12-01 Noritake Itron Corp Fluorescent display tube incorporating driver ic
US8624480B2 (en) 2010-05-17 2014-01-07 Noritake Itron Corporation Vacuum fluorescent display with driver IC

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