JPH09199019A - Assembly method of electron gun for cathode-ray tube and cathode structure - Google Patents
Assembly method of electron gun for cathode-ray tube and cathode structureInfo
- Publication number
- JPH09199019A JPH09199019A JP2578696A JP2578696A JPH09199019A JP H09199019 A JPH09199019 A JP H09199019A JP 2578696 A JP2578696 A JP 2578696A JP 2578696 A JP2578696 A JP 2578696A JP H09199019 A JPH09199019 A JP H09199019A
- Authority
- JP
- Japan
- Prior art keywords
- grid
- support member
- cathode
- supporting member
- spacer
- 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
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
- H01J9/18—Assembling together the component parts of electrode systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/485—Construction of the gun or of parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は陰極線管用電子銃の
組立方法に関する。また、カソード、第１グリッド及び
第２グリッドに対するスペーサ等を予め一体的に組み込
んだカソード構造体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling an electron gun for a cathode ray tube. Further, the present invention relates to a cathode structure in which a cathode, spacers for the first grid and the second grid, and the like are integrally incorporated in advance.
【０００２】[0002]
【従来の技術】図２を参照して、従来の陰極線管用電子
銃の一例を簡潔に説明する。図示する電子銃はカラーＣ
ＲＴに組み込まれるトリニトロン型であり、例えば特開
平５−１６６４５９号公報に開示されている。この電子
銃はカソードと第１グリッドと第２グリッドに対するス
ペーサとが一体的に固着されたカソード構造体１００を
三個備えている。また、第２グリッドＧ２ないし第５グ
リッドＧ５を備えている。三個のカソード構造体１００
はスペーサを介して第２グリッドＧ２に傾斜した姿勢で
取り付けられる。この第２グリッドＧ２と残りのグリッ
ドＧ３〜Ｇ５はビードガラス１０１により互いに固定さ
れ、トニリトロン型の電子銃に組み立てられる。なお、
第１グリッド及び第２グリッドＧ２がプリフォーカス系
を構成し、第３グリッドＧ３，第４グリッドＧ４及び第
５グリッドＧ５がメインレンズ系を構成する。2. Description of the Related Art An example of a conventional electron gun for a cathode ray tube will be briefly described with reference to FIG. The illustrated electron gun is a color C
It is a trinitron type incorporated in an RT and is disclosed in, for example, Japanese Patent Application Laid-Open No. 5-166459. This electron gun includes three cathode structures 100 in which a cathode, spacers for the first grid and the second grid are integrally fixed. Further, the second grid G2 to the fifth grid G5 are provided. Three cathode structures 100
Is attached to the second grid G2 via a spacer in an inclined posture. The second grid G2 and the remaining grids G3 to G5 are fixed to each other by the bead glass 101, and assembled into a tonitron type electron gun. In addition,
The first grid and the second grid G2 form a prefocus system, and the third grid G3, the fourth grid G4, and the fifth grid G5 form a main lens system.
【０００３】図３はカソード構造体１００の一例を表わ
しており、例えば特開平７−１４５０８号公報に開示さ
れている。このカソード構造体は、第１グリッドＧ１、
第１グリッドＧ１が固定された絶縁物からなる支持体１
１０、及び支持体１１０の第１グリッドＧ１が固定され
た側とは反対側に配置されたカソード１１１を備えてい
る。第１グリッドＧ１は例えばコバール材からなり、支
持体１１０はアルミナ系セラミックスから作製される。
第１グリッドＧ１が固定された支持体１１０の一方の側
の面上にはスペーサ１１２が取り付けられている。スペ
ーサ１１２の上面１１２ａには第２グリッドＧ２（図
２）が取り付けられる。スペーサ１１２によって、第１
グリッドＧ１と第２グリッドＧ２との距離ｄ１２が規定
される。カソード１１１は円筒型のスリーブ１２０、こ
のスリーブ１２０の先端に被さったキャップ１２２、及
びキャップ１２２の頂面に設けられたエミッション源と
してのオキサイド１２４から構成されている。係る構成
を有するカソード１１１は支持体１１０の下面に取り付
けられたスリーブ支持部材１２８に挿入される。また、
スリーブ１２０の内部にはヒータ１２６が配設されてい
る。FIG. 3 shows an example of the cathode structure 100, which is disclosed in, for example, Japanese Patent Laid-Open No. 7-14508. This cathode structure has a first grid G1,
Support 1 made of an insulator to which the first grid G1 is fixed
10 and the cathode 111 arranged on the opposite side of the support 110 to the side on which the first grid G1 is fixed. The first grid G1 is made of, for example, Kovar material, and the support 110 is made of alumina ceramics.
The spacer 112 is attached to the surface of the one side of the support 110 to which the first grid G1 is fixed. The second grid G2 (FIG. 2) is attached to the upper surface 112a of the spacer 112. First by the spacer 112
A distance d12 between the grid G1 and the second grid G2 is defined. The cathode 111 is composed of a cylindrical sleeve 120, a cap 122 covering the tip of the sleeve 120, and an oxide 124 as an emission source provided on the top surface of the cap 122. The cathode 111 having such a configuration is inserted into the sleeve support member 128 attached to the lower surface of the support 110. Also,
A heater 126 is arranged inside the sleeve 120.
【０００４】次に図４を参照してカソード構造体１００
の組立方法を簡潔に説明する。まず、第１の面１４０ｂ
及び第２の面１４０ｃを有するロウ付治具１４０を用意
する。ロウ付治具１４０の第１の面１４０ｂには軸１４
０ａが配設されている。第２の面１４０ｃは第１の面１
４０ｂの外側に設けられ、第１の面１４０ｂよりも高さ
が低くなっている。この第１の面１４０ｂと第２の面１
４０ｃとの段差は、第１グリッドＧ１と第２グリッドＧ
２との距離ｄ１２に等しくなるようにセットされてい
る。まず、絶縁物からなる支持体１１０の一方の側の面
上に第１グリッドＧ１及びスペーサ１１２を取り付けた
後、支持体１１０の他方の側にカソード（図示せず）を
配置する。このために、第１グリッドＧ１をロウ付治具
１４０に配設された軸１４０ａに挿通した状態で、治具
１４０の第１の面１４０ｂ上に第１グリッドＧ１を載置
する。また、鉄ニッケル合金や鉄コバルトニッケル合金
等からなる金属製のスペーサ１１２を、治具１４０の第
２の面１４０ｃ上に載置する。そして、第１グリッドＧ
１及びスペーサ１１２に支持体１１０の平面１１０ｂが
接するように、第１グリッドＧ１及びスペーサ１１２上
に支持体１１０を載置する。なお、平面１１０ｂには予
めメタライズ処理を施しておく。第１グリッドＧ１の中
央にはエミッション穴Ｅ（図３）が形成されている。ま
た、このエミッション穴Ｅに対応して、支持体１１０に
も貫通穴１１０ａ（図３）が設けられている。次いで、
支持体１１０を治具１４０側に押圧部材１４０ｄを用い
て押圧しつつ、第１グリッドＧ１及びスペーサ１１２を
支持体１１０の平面１１０ｂにロウ付法にて固着させ
る。これによって、第１グリッドＧ１と支持体１１０の
対向面、並びにスペーサ１１２と支持体１１０の対向面
が互いにロウ付される。Next, referring to FIG. 4, the cathode structure 100 is shown.
The assembling method will be briefly described. First, the first surface 140b
Then, a brazing jig 140 having the second surface 140c is prepared. The shaft 14 is provided on the first surface 140b of the brazing jig 140.
0a is provided. The second surface 140c is the first surface 1
It is provided on the outer side of 40b and has a height lower than that of the first surface 140b. The first surface 140b and the second surface 1
The difference from 40c is the difference between the first grid G1 and the second grid G1.
It is set to be equal to the distance d12 from 2. First, the first grid G1 and the spacers 112 are attached to the surface of the support 110 made of an insulating material on one side, and then the cathode (not shown) is arranged on the other side of the support 110. For this purpose, the first grid G1 is placed on the first surface 140b of the jig 140 while the first grid G1 is inserted into the shaft 140a provided in the brazing jig 140. Further, the metal spacer 112 made of iron-nickel alloy, iron-cobalt-nickel alloy or the like is placed on the second surface 140c of the jig 140. And the first grid G
The support body 110 is placed on the first grid G1 and the spacer 112 such that the flat surface 110b of the support body 110 is in contact with the first and the spacer 112. The plane 110b is preliminarily subjected to a metallizing process. An emission hole E (FIG. 3) is formed in the center of the first grid G1. Corresponding to the emission hole E, the support 110 is also provided with a through hole 110a (FIG. 3). Then
While pressing the support 110 toward the jig 140 using the pressing member 140d, the first grid G1 and the spacers 112 are fixed to the flat surface 110b of the support 110 by the brazing method. As a result, the opposing surfaces of the first grid G1 and the support 110 and the opposing surfaces of the spacer 112 and the support 110 are brazed to each other.
【０００５】[0005]
【発明が解決しようとする課題】ロウ付により第１グリ
ッドＧ１、スペーサ１１２、カソード支持部材１２８を
セラミック等からなる支持体１１０に固定して、カソー
ド構造体を組み立てている。この構造体にカソードスリ
ーブ１２０を挿入し、エアーマイクロ等を用いて第１グ
リッドＧ１とカソード１１１間の距離を測定した上で溶
接等により固定している。この方法だと、予め第１グリ
ッドＧ１と第２グリッドＧ２間の距離ｄ１２をロウ付時
に治具で設定し固着するため、正確なパーツの取り付け
ができる。しかしながらその反面、高精度で熱変形の少
ないロウ付治具１４０が必要になる。また、各部品の固
定のためセラミック等からなる支持体１１０に高い加工
精度が必要になる。これらのため、従来の電子銃の組立
方法及び構造はコスト面で不利である。これに変わる方
法として、ガラス付等による固着の方法があるが、コス
トは低減できるものの、ガラス付ではロウ付のような高
精度が得られず、これでは後工程での管理が困難になる
等の問題がある。The first grid G1, the spacer 112, and the cathode support member 128 are fixed to the support 110 made of ceramic or the like by brazing to assemble the cathode structure. The cathode sleeve 120 is inserted into this structure, and the distance between the first grid G1 and the cathode 111 is measured using an air micro or the like, and then fixed by welding or the like. According to this method, the distance d12 between the first grid G1 and the second grid G2 is set and fixed in advance by a jig during brazing, so that accurate parts can be attached. However, on the other hand, a brazing jig 140 with high accuracy and less thermal deformation is required. Further, in order to fix each component, the support 110 made of ceramic or the like requires high processing accuracy. For these reasons, the conventional electron gun assembly method and structure are disadvantageous in terms of cost. As an alternative method, there is a method of fixing with glass, etc., but although the cost can be reduced, high accuracy such as brazing cannot be obtained with glass, which makes it difficult to manage in the subsequent process etc. I have a problem.
【０００６】[0006]
【課題を解決するための手段】上述した従来の技術の課
題を解決するため以下の手段を講じた。すなわち、電子
ビームを放射するカソードと、第１グリッド及び第２グ
リッドを含む複数のグリッドとを互いに位置合わせして
陰極線管用の電子銃に組み立てる方法において、第１グ
リッドを固定する第１支持部材、該第１グリッドに対す
る第２グリッドの間隔を規定するスペーサを固定する第
２支持部材及びカソードを固定する第３支持部材を比較
的荒い位置合わせで絶縁物により互いに一体化して基体
部品を作製する一体化工程を行う。続いて、該基体部品
の第１支持部材に対して第１グリッドを取り付ける第１
固定工程を行う。更に、該基体部品の第２支持部材に対
して第１グリッドと精密な位置合わせをした状態でスペ
ーサを取り付ける第２固定工程を行う。最後に、該基体
部品の第３支持部材に対して第１グリッドと精密な位置
合わせをした状態でカソードを取り付ける第３固定工程
を行う。例えば、前記一体化工程は、環状金属からなる
第２支持部材、筒状金属からなり該第２支持部材の内側
に配される第３支持部材及び一対の棒状金属からなり該
第２支持部材と該第３支持部材との間に配された第１支
持部材を互いにハーメチックシールで一体的に固着す
る。Means for Solving the Problems The following means have been taken to solve the above-mentioned problems of the conventional technology. That is, in a method of aligning a cathode that emits an electron beam and a plurality of grids including a first grid and a second grid with each other to assemble them into an electron gun for a cathode ray tube, a first support member that fixes the first grid, A second support member for fixing spacers defining the spacing of the second grid with respect to the first grid and a third support member for fixing the cathode are integrated with each other by an insulator in a relatively rough alignment to form a base component. The conversion process is performed. Subsequently, a first grid is attached to the first support member of the base component.
Perform the fixing process. Further, a second fixing step of attaching the spacer to the second support member of the base component in a state of being precisely aligned with the first grid is performed. Finally, a third fixing step is performed in which the cathode is attached to the third support member of the base component while being precisely aligned with the first grid. For example, in the integration step, a second support member made of an annular metal, a third support member made of a tubular metal and arranged inside the second support member, and a pair of rod-shaped metals made of the second support member are provided. The first support member arranged between the third support member and the third support member is integrally fixed to each other by a hermetic seal.
【０００７】本発明は上述した陰極線管用電子銃の組立
方法に加え、第２グリッドを含む陰極線管用電子銃の一
部として組み込まれるカソード構造体を包含している。
このカソード構造体は、電子ビームを放射するカソード
と、第１グリッドと、該第２グリッドに対する第１グリ
ッドの間隔を規定するスペーサとを備えている。特徴事
項として、第１グリッドを取り付けるための第１支持部
材、スペーサを取り付けるための第２支持部材及びカソ
ードを取り付けるための第３支持部材が絶縁物により互
いに一体化された基体部品を用いて組み立てられてい
る。例えば、前記基体部品は、環状金属からなる第２支
持部材、筒状金属からなり該第２支持部材の内側に配さ
れる第３支持部材及び一対の棒状金属からなり該第２支
持部材と該第３支持部材との間に配された第１支持部材
を互いにハーメチックシールで一体的に固着したもので
ある。The present invention includes, in addition to the above-described method for assembling a cathode ray tube electron gun, a cathode structure incorporated as a part of the cathode ray tube electron gun including a second grid.
The cathode structure includes a cathode that emits an electron beam, a first grid, and a spacer that defines a distance between the first grid and the second grid. As a characteristic feature, a first support member for attaching the first grid, a second support member for attaching the spacer, and a third support member for attaching the cathode are assembled by using a base component integrated with each other by an insulator. Has been. For example, the base component includes a second support member made of an annular metal, a third support member made of a tubular metal and arranged inside the second support member, and a pair of rod-shaped metals made of the second support member and the second support member. The first support member arranged between the third support member and the third support member is integrally fixed to each other by a hermetic seal.
【０００８】本発明によれば、陰極線管用電子銃の構造
及びその組立方法において、カソードの支持部材、第１
グリッドの支持部材及びスペーサの支持部材をハーメチ
ックシールのような方法により互いに固着し一体となっ
た基体部品を用いている。この基体部品に第１グリッド
Ｇ１やスペーサを治具により正確に位置出しした上で溶
接等で固定する。その後、第１グリッドに対するカソー
ドの距離を正確に合わせ込んだ上で溶接等によりカソー
ドを対応する支持部材に固着し、カソード構造体を完成
する。このカソード構造体は陰極線管用電子銃の一部と
して組み込まれる。これにより、カソードと第１グリッ
ド間の距離や第１グリッドと第２グリッド間の距離を精
度よく出すことができる。According to the present invention, in a structure of an electron gun for a cathode ray tube and an assembling method thereof, a supporting member for a cathode, a first
A base component is used in which the grid support member and the spacer support member are fixed to each other by a method such as a hermetic seal and integrated. The first grid G1 and spacers are accurately positioned on the base component by a jig and then fixed by welding or the like. After that, the distance between the cathode and the first grid is accurately adjusted, and then the cathode is fixed to the corresponding support member by welding or the like to complete the cathode structure. This cathode structure is incorporated as part of an electron gun for a cathode ray tube. Thereby, the distance between the cathode and the first grid and the distance between the first grid and the second grid can be accurately obtained.
【０００９】[0009]
【発明の実施の形態】以下図面を参照して本発明の最良
な実施形態を詳細に説明する。図１は本発明に係る陰極
線管用電子銃の組立方法を示す工程図である。まず
（Ａ）に示すように、第１グリッドを固定するための第
１支持部材１、第１グリッドに対する第２グリッドの間
隔を規定するスペーサを固定するための第２支持部材
２、及びカソードを固定するための第３支持部材３を比
較的荒い位置合わせで絶縁物５により互いに一体化して
基体部品４を作製する。具体的には、環状金属からなる
第２支持部材２、筒状金属からなり第２支持部材２の内
側に配される第３支持部材３及び一対の棒状金属からな
り第２支持部材２と第３支持部材３との間に配された第
１支持部材１を互いにハーメチックシールで一体的に固
着する。この場合には絶縁物５として結晶化ガラスを用
いる。なお本発明はこれに限られるものではなく、ハー
メチックシールに変えてセラミック部品を絶縁物として
用い、これにガラス付で各支持部材を固定する構造とし
てもよい。従来ロウ付等で各部品の精度を精密に出した
状態で互いに固着していたのに対し、本発明ではまず各
部品の支持部材のみをハーメチックシールのような方法
で固着し、基体部品４を設けている。この時、各支持部
材には必要以上の精度は求めない。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a process diagram showing an assembling method of an electron gun for a cathode ray tube according to the present invention. First, as shown in (A), a first support member 1 for fixing the first grid, a second support member 2 for fixing a spacer that defines a distance between the second grid and the first grid, and a cathode are provided. The third support member 3 for fixing is integrated with each other by the insulator 5 in a relatively rough position to manufacture the base component 4. Specifically, the second support member 2 made of an annular metal, the third support member 3 made of a tubular metal and arranged inside the second support member 2, and the second support member 2 made of a pair of rod-shaped metals and The first support member 1 disposed between the third support member 3 and the third support member 3 is integrally fixed to each other by a hermetic seal. In this case, crystallized glass is used as the insulator 5. Note that the present invention is not limited to this, and a ceramic component may be used as an insulator instead of the hermetic seal, and glass may be attached thereto to fix each support member. In contrast to the conventional method in which each component is fixed to each other with high precision by brazing or the like, in the present invention, first, only the supporting member of each component is fixed by a method such as a hermetic seal, and the base component 4 is fixed. It is provided. At this time, each supporting member is not required to have an accuracy higher than necessary.
【００１０】次に工程（Ｂ）に進み、一対の第１支持部
材１に対し第１グリッド６を溶接等で取り付ける。第１
グリッド６は第３支持部３の頂部を収納するカップ形状
を有し、その中央にはエミッション穴７が開口してい
る。Next, in step (B), the first grid 6 is attached to the pair of first support members 1 by welding or the like. First
The grid 6 has a cup shape for accommodating the top of the third support portion 3, and an emission hole 7 is opened in the center thereof.
【００１１】工程（Ｃ）に進み、基体部品４の第２支持
部材２に対して先に取り付けられた第１グリッド６と精
密な位置合わせをした状態で一対のスペーサ８を溶接等
により取り付ける。この時治具を用いて、第１グリッド
６の上面９と各スペーサ８の上面１０との間の距離を精
密に出した上で、一対のスペーサ８を第２支持部材２に
溶接する。このスペーサ８の上面には後工程で第２グリ
ッドが取り付けられる。従って、上述した第１グリッド
６の上面９とスペーサ８の上面１０との間の距離が第１
グリッド／第２グリッド間の距離ｄ１２を規定すること
になる。この距離ｄ１２は精密に制御する必要がある。
以上のようにして第１グリッドや第２グリッドに対する
スペーサを一体化したカソード構造体１１が得られる。Proceeding to step (C), a pair of spacers 8 are attached by welding or the like in a state of being precisely aligned with the first grid 6 previously attached to the second support member 2 of the base component 4. At this time, a jig is used to precisely measure the distance between the upper surface 9 of the first grid 6 and the upper surface 10 of each spacer 8, and then the pair of spacers 8 are welded to the second support member 2. A second grid is attached to the upper surface of the spacer 8 in a later step. Therefore, the distance between the upper surface 9 of the first grid 6 and the upper surface 10 of the spacer 8 is equal to the first distance.
The distance d12 between the grid and the second grid will be defined. This distance d12 needs to be precisely controlled.
As described above, the cathode structure 11 in which the spacers for the first grid and the second grid are integrated is obtained.
【００１２】最後に工程（Ｄ）に進み、基体部品４の第
３支持部材３に対して第１グリッド６と精密な位置合わ
せをした状態でカソード１２を取り付ける。このカソー
ド１２は円筒型のスリーブ１３、スリーブ１３の先端に
被せられたキャップ１４、及びキャップ１４の頂面に設
けられたエミッション源としてのオキサイド１５とから
構成されている。このスリーブ１３を第３支持部材３の
内部に挿入する。円筒型のスリーブ１３は基端側が先端
側よりやや大径である。スリーブ１３の外周面と第３支
持部材３の内周面の摩擦接触によって、スリーブ１３は
第３支持部材３に対して仮止めされる。この後エアーマ
イクロ等を用いてオキサイド１５と第１グリッド６との
間の距離ｄ０１を測定し、所望の値に合わせ込む。な
お、このエアーマイクロは第１グリッド６に開口したエ
ミッション穴７を介してオキサイド１５にエアーを圧送
し、その背圧を検出することで距離が図れる。このよう
にしてオキサイド１５と第１グリッド６との間の距離を
正確に調整した上で、スリーブ１３と第３支持部材３と
を互いに溶接する。Finally, in step (D), the cathode 12 is attached to the third support member 3 of the base component 4 in a state of being precisely aligned with the first grid 6. The cathode 12 is composed of a cylindrical sleeve 13, a cap 14 covering the tip of the sleeve 13, and an oxide 15 as an emission source provided on the top surface of the cap 14. The sleeve 13 is inserted inside the third support member 3. The diameter of the cylindrical sleeve 13 on the base end side is slightly larger than that on the tip end side. The sleeve 13 is temporarily fixed to the third support member 3 by frictional contact between the outer peripheral surface of the sleeve 13 and the inner peripheral surface of the third support member 3. After that, the distance d01 between the oxide 15 and the first grid 6 is measured by using an air micro or the like and adjusted to a desired value. In addition, this air micro pumps air to the oxide 15 through the emission hole 7 opened in the first grid 6, and the back pressure is detected, so that the distance can be determined. In this way, the distance between the oxide 15 and the first grid 6 is accurately adjusted, and then the sleeve 13 and the third support member 3 are welded to each other.
【００１３】このようにして最終的に組み立てられたカ
ソード構造体１１はスペーサ８を介して第２グリッドに
取り付けられる。この後図２に示したように、第２グリ
ッドＧ２、第３グリッドＧ３、第４グリッドＧ４、第５
グリッドＧ５等をビーディングにより互いに固定する
と、陰極線管用の電子銃が完成する。The cathode structure 11 thus finally assembled is attached to the second grid via the spacer 8. Thereafter, as shown in FIG. 2, the second grid G2, the third grid G3, the fourth grid G4, and the fifth grid G4.
When the grid G5 and the like are fixed to each other by beading, an electron gun for a cathode ray tube is completed.
【００１４】[0014]
【発明の効果】以上説明したように、本発明によれば第
１グリッドを固定する第１支持部材、第１グリッドに対
する第２グリッドの間隔を規定するスペーサを固定する
第２支持部材及びカソードを固定する第３支持部材を比
較的荒い位置合わせでハーメチックシール等により互い
に一体化してまず基体部品を作製している。この基体部
品に対して対応する支持部材にそれぞれ高精度で第１グ
リッド、スペーサ、カソードを取り付ける。係る構成に
より、第１グリッド／第２グリッド間の距離ｄ１２の設
定がスペーサにより容易にかつ正確に行うことができ
る。また、ハーメチックシール等による金属支持部材の
固定は形状も自由度が大きくかつ精度を必要としないた
め、コスト的に有利である。更に、第１グリッドのエミ
ッション穴の径やｄ１２の設定値の異なる電子銃につい
ても、単に第１グリッド部品の変更やスペーサ取り付け
治具の変更のみで容易に対応できる。As described above, according to the present invention, the first supporting member for fixing the first grid, the second supporting member for fixing the spacer for defining the distance between the second grid and the first grid, and the cathode are provided. The third support member to be fixed is integrated with each other by a hermetic seal or the like in a relatively rough alignment so that the base component is manufactured first. The first grid, the spacer, and the cathode are attached with high accuracy to the corresponding support members with respect to this base component. With such a configuration, the distance d12 between the first grid and the second grid can be set easily and accurately by the spacer. Further, fixing the metal supporting member by a hermetic seal or the like has a large degree of freedom in shape and does not require precision, which is advantageous in terms of cost. Further, electron guns having different diameters of the emission holes of the first grid and different set values of d12 can be easily dealt with by simply changing the first grid component or the spacer mounting jig.
【図１】本発明に係る陰極線管用電子銃の組立方法を示
す工程図である。FIG. 1 is a process drawing showing an assembling method of an electron gun for a cathode ray tube according to the present invention.
【図２】従来の陰極線管用電子銃の一例を示す模式的な
ブロック図である。FIG. 2 is a schematic block diagram showing an example of a conventional electron gun for a cathode ray tube.
【図３】従来の陰極線管用電子銃に組み込まれるカソー
ド構造体の一例を示す模式的な断面図である。FIG. 3 is a schematic cross-sectional view showing an example of a cathode structure incorporated in a conventional electron gun for a cathode ray tube.
【図４】図３に示した従来のカソード構造体の組立方法
を示す模式図である。FIG. 4 is a schematic diagram showing an assembling method of the conventional cathode structure shown in FIG.
１・・・第１支持部材、２・・・第２支持部材、３・・
・第３支持部材、４・・・基体部品、５・・・絶縁物、
６・・・第１グリッド、７・・・エミッション穴、８・
・・スペーサ、１１・・・カソード構造体、１２・・・
カソード、１３・・・スリーブ、１４・・・キャップ、
１５・・・オキサイド1 ... 1st support member, 2 ... 2nd support member, 3 ...
・ Third support member, 4 ... Base component, 5 ... Insulator,
6 ... 1st grid, 7 ... Emission hole, 8 ...
..Spacers, 11 ... Cathode structure, 12 ...
Cathode, 13 ... Sleeve, 14 ... Cap,
15 ... Oxide
Claims (4)
グリッド及び第２グリッドを含む複数のグリッドとを互
いに位置合わせして陰極線管用の電子銃に組み立てる方
法において、 第１グリッドを固定する第１支持部材、該第１グリッド
に対する第２グリッドの間隔を規定するスペーサを固定
する第２支持部材及びカソードを固定する第３支持部材
を比較的荒い位置合わせで絶縁物により互いに一体化し
て基体部品を作製する一体化工程と、 該基体部品の第１支持部材に対して第１グリッドを取り
付ける第１固定工程と、 該基体部品の第２支持部材に対して第１グリッドと精密
な位置合わせをした状態でスペーサを取り付ける第２固
定工程と、 該基体部品の第３支持部材に対して第１グリッドと精密
な位置合わせをした状態でカソードを取り付ける第３固
定工程とを含むことを特徴とする陰極線管用電子銃の組
立方法。1. A cathode for emitting an electron beam, and a first
In a method of assembling a grid and a plurality of grids including a second grid with each other to assemble an electron gun for a cathode ray tube, a first support member for fixing the first grid, and an interval between the second grid and the first grid are defined. And a third supporting member for fixing the spacer and a third supporting member for fixing the cathode are integrated with each other by an insulator in a relatively rough alignment to form a base component, and a first supporting member for the base component. A first fixing step of attaching the first grid to the base plate, and a second fixing step of attaching the spacer to the second support member of the base part component in precise alignment with the first grid; And a third fixing step of attaching the cathode to the third support member in a state of being precisely aligned with the first grid. Assembling method of electron gun for tube.
２支持部材、筒状金属からなり該第２支持部材の内側に
配される第３支持部材及び一対の棒状金属からなり該第
２支持部材と該第３支持部材との間に配された第１支持
部材を互いにハーメチックシールで一体的に固着するこ
とを特徴とする請求項１記載の陰極線管用電子銃の組立
方法。2. The integrating step comprises a second support member made of a ring-shaped metal, a third support member made of a tubular metal and arranged inside the second support member, and a pair of rod-shaped metals made of the second support member. 2. The method for assembling an electron gun for a cathode ray tube according to claim 1, wherein the first supporting member arranged between the supporting member and the third supporting member is integrally fixed to each other by a hermetic seal.
一部として組み込まれるカソード構造体であって、 電子ビームを放射するカソードと、第１グリッドと、該
第２グリッドに対する第１グリッドの間隔を規定するス
ペーサとを備え、 さらに、第１グリッドを取り付ける為の第１支持部材、
スペーサを取り付ける為の第２支持部材及びカソードを
取り付ける為の第３支持部材が絶縁物により互いに一体
化された基体部品を用いて組み立てられていることを特
徴とするカソード構造体。3. A cathode structure incorporated as part of an electron gun for a cathode ray tube including a second grid, the cathode emitting an electron beam, a first grid, and an interval between the first grid and the second grid. And a spacer for defining the first grid, and a first support member for mounting the first grid,
A cathode structure, wherein a second supporting member for mounting a spacer and a third supporting member for mounting a cathode are assembled by using a base component integrated with each other by an insulating material.
支持部材、筒状金属からなり該第２支持部材の内側に配
される第３支持部材及び一対の棒状金属からなり該第２
支持部材と該第３支持部材との間に配された第１支持部
材を互いにハーメチックシールで一体的に固着したもの
であることを特徴とする請求項３記載のカソード構造
体。4. The base member is a second member made of an annular metal.
A second supporting member, a third supporting member made of a tubular metal and arranged inside the second supporting member, and a pair of rod-shaped metals;
4. The cathode structure according to claim 3, wherein the first support member arranged between the support member and the third support member is integrally fixed to each other by a hermetic seal.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2578696A JPH09199019A (en) | 1996-01-19 | 1996-01-19 | Assembly method of electron gun for cathode-ray tube and cathode structure |
| SG9700073A SG81910A1 (en) | 1996-01-19 | 1997-01-14 | Method of manufacturing electron gun for cathode ray tube and cathode assembly |
| GB9700812A GB2309333B (en) | 1996-01-19 | 1997-01-16 | Method of manufacturing an electron gun for a cathode ray tube and a cathode assembly |
| CN 97101873 CN1160281A (en) | 1996-01-19 | 1997-01-19 | Method of manufacturing electron gun for cathode ray tube and cathode assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2578696A JPH09199019A (en) | 1996-01-19 | 1996-01-19 | Assembly method of electron gun for cathode-ray tube and cathode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09199019A true JPH09199019A (en) | 1997-07-31 |
Family
ID=12175524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2578696A Pending JPH09199019A (en) | 1996-01-19 | 1996-01-19 | Assembly method of electron gun for cathode-ray tube and cathode structure |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH09199019A (en) |
| CN (1) | CN1160281A (en) |
| GB (1) | GB2309333B (en) |
| SG (1) | SG81910A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100310684B1 (en) * | 1999-09-08 | 2001-10-18 | 김순택 | Apparatus for supporting a metal cathode and a cap of electron gun |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715986B (en) * | 2013-12-11 | 2017-02-22 | 中国航空工业第六一八研究所 | Suspension-type multi-claw grid combination and assembling method thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB707064A (en) * | 1951-04-03 | 1954-04-14 | Emi Ltd | Improvements relating to electrode assemblies for cathode ray tubes |
| GB2046511B (en) * | 1979-04-09 | 1983-04-20 | Tektronix Inc | Electron gun having a low capacitance cathode and grid assembly |
| US4633130A (en) * | 1985-05-17 | 1986-12-30 | Rca Corporation | Multibeam electron gun having a transition member and method for assembling the electron gun |
| JPH06103622B2 (en) * | 1986-08-21 | 1994-12-14 | ソニー株式会社 | Electron gun assembly method |
| US5028838A (en) * | 1989-08-31 | 1991-07-02 | Askew Dennis D | Grid assemblies for use in cathode ray tubes |
| US5221875A (en) * | 1992-05-12 | 1993-06-22 | Tektronix, Inc. | High resolution cathode-ray tube with high bandwidth capability |
| JP3189388B2 (en) * | 1992-05-22 | 2001-07-16 | ソニー株式会社 | Cathode structure of cathode ray tube |
| JP3189510B2 (en) * | 1993-06-25 | 2001-07-16 | ソニー株式会社 | Assembling method of electron gun cathode structure |
| JPH0729490A (en) * | 1993-07-15 | 1995-01-31 | Sony Corp | Manufacture of cathode structure body for electron gun, and cathode for electron gun |
| JPH0794086A (en) * | 1993-09-22 | 1995-04-07 | Hitachi Ltd | Method for assembling electron gun for cathode-ray tube |
-
1996
- 1996-01-19 JP JP2578696A patent/JPH09199019A/en active Pending
-
1997
- 1997-01-14 SG SG9700073A patent/SG81910A1/en unknown
- 1997-01-16 GB GB9700812A patent/GB2309333B/en not_active Expired - Fee Related
- 1997-01-19 CN CN 97101873 patent/CN1160281A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100310684B1 (en) * | 1999-09-08 | 2001-10-18 | 김순택 | Apparatus for supporting a metal cathode and a cap of electron gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1160281A (en) | 1997-09-24 |
| GB2309333A (en) | 1997-07-23 |
| GB9700812D0 (en) | 1997-03-05 |
| SG81910A1 (en) | 2001-07-24 |
| GB2309333B (en) | 2000-11-08 |
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