JPH0317938A - Cathode-ray tube - Google Patents
Cathode-ray tubeInfo
- Publication number
- JPH0317938A JPH0317938A JP15089589A JP15089589A JPH0317938A JP H0317938 A JPH0317938 A JP H0317938A JP 15089589 A JP15089589 A JP 15089589A JP 15089589 A JP15089589 A JP 15089589A JP H0317938 A JPH0317938 A JP H0317938A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- shaped member
- neck portion
- ray tube
- electron gun
- 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
- 239000012777 electrically insulating material Substances 0.000 claims description 2
- 238000005192 partition Methods 0.000 abstract description 9
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、耐電圧特性を改善した陰極線管に関する．
［従来の技術］
第５図は従来の陰極線管の構成を示す断面図であり、パ
ネル（１） ファンネル（２）、ネック部（３）によ
って陰極線管の真空外囲器を構成している．パネル（１
）の内面には蛍光面（４）が塗布されており、その内側
にシャドウマスク（５）が取付けられている。また、フ
ァンネル（２）とネック部（３）の一部の内面には、内
部導電１１！！（６）が塗布されている．ネック部（３
）の内側には、低圧電極（７）、高圧電極（８）、支持
バネ（９）、およびアンテナゲツタ（１０）から構成さ
れた電子銃（ｌ１）が配置されている。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a cathode ray tube with improved voltage resistance characteristics. [Prior Art] Figure 5 is a sectional view showing the structure of a conventional cathode ray tube, in which a panel (1), a funnel (2), and a neck (3) constitute a vacuum envelope of the cathode ray tube. Panel (1
) is coated with a fluorescent screen (4), and a shadow mask (5) is attached inside the fluorescent screen (4). In addition, internal conductive 11! ! (6) is applied. Neck part (3
) is arranged an electron gun (11) consisting of a low voltage electrode (7), a high voltage electrode (8), a support spring (9), and an antenna getter (10).
上記のような従来の陰極線管では、製造時において、シ
ャドウマスク（５）や、蛍光面（４）や、管内のその他
の部分に付着して管内に封じ込まれた異物や、製造時に
おいて電子銃（１１）をネック部（３）に挿入する際、
支持バネ（９）が内部導電膜（６）に触れ、その一部が
剥離されて生じる導電性の異物が、運搬等による振動や
衝撃によってネック部（３）に移動し、低圧電極（７）
と高圧電極（８）の間に付着して両電極間に放電を生じ
たり、ストレーエミッションの原因となり、陰極線管の
耐電圧特性を著しく劣化されることが、ひんぱんに発生
していた。このため、第６図で示すように、ネック部（
３）の内壁にガラスまたはセラ主ツタ等で形成された隔
壁（ｌ２）を溶着または接着して固定し、異物の電子銃
（１１）内への移動を防止する試みがなされていた。In conventional cathode ray tubes such as those mentioned above, during manufacturing, foreign matter adheres to the shadow mask (5), phosphor screen (4), and other parts of the tube and is trapped inside the tube, and electronic particles are removed during manufacturing. When inserting the gun (11) into the neck part (3),
When the support spring (9) touches the internal conductive film (6), a part of the conductive film (6) is peeled off, and conductive foreign matter is moved to the neck part (3) due to vibrations and shocks caused by transportation, etc., and the low voltage electrode (7)
Frequently, the particles adhere to the high-voltage electrode (8) and cause discharge between the two electrodes, causing stray emissions, and significantly deteriorating the withstand voltage characteristics of the cathode ray tube. Therefore, as shown in Fig. 6, the neck part (
Attempts have been made to fix a partition wall (12) made of glass or ceramic ivy to the inner wall of the electron gun (11) by welding or gluing to prevent foreign matter from moving into the electron gun (11).
［発明が解決しようとする課題］
しかし、この構成では、ネック部（３）内に電子銃（１
１）を挿入する前に隔壁（ｌ２）を溶着または接着固定
するため、非常に煩雑な作業を必要とし、さらに、現在
一般的に用いられているアンテナゲッタ（ｌＯ）が上記
隔壁（ｌ２）で阻止されて使用できなくなるという問題
点があった。[Problems to be Solved by the Invention] However, in this configuration, the electron gun (1
1) The partition wall (l2) is welded or adhesively fixed before inserting the partition wall (l2), which requires a very complicated work. There was a problem in that it was blocked and could no longer be used.
この発明は上記のような問題点を解消するためになされ
たもので、アンテナゲツタが使用でき、かつ取付の容易
な隔壁を備えた陰極線管を得ることを目的とする。The present invention was made to solve the above-mentioned problems, and an object of the present invention is to provide a cathode ray tube that can use an antenna getter and has a partition wall that is easy to install.
［課題を解決するための手段］
この発明に係る陰極線管は、高圧電極の外周に設けられ
たリング装着用の部材と、電気絶縁材料で形成され上記
リング装着用の部材によって位置決めされるリング状部
材とを備え、この電子銃をネック部内に挿入したとき、
リング状部材の外周が弾性力でもってネック部の内壁に
隙間なく接触する構成とした点を特徴とする。[Means for Solving the Problems] A cathode ray tube according to the present invention includes a ring mounting member provided on the outer periphery of a high voltage electrode, and a ring-shaped member formed of an electrically insulating material and positioned by the ring mounting member. When this electron gun is inserted into the neck part,
It is characterized by a structure in which the outer periphery of the ring-shaped member contacts the inner wall of the neck portion with elastic force without any gap.
［作用］
リング状部材は、電子銃をネック部内に挿入する前に、
アンテナゲツタが設けられる電子銃の高圧電極に装着さ
れ、上記電子銃をネック部内に挿入したとき、リング状
部材の外周が弾性力でもってネック部の内壁に隙間なく
接触する。したがって、その取付作業が容易でかつアン
テナゲツタの使用が可能となる。[Function] Before inserting the electron gun into the neck, the ring-shaped member
When the antenna getter is attached to the high-voltage electrode of an electron gun and the electron gun is inserted into the neck, the outer periphery of the ring-shaped member comes into contact with the inner wall of the neck with elastic force without a gap. Therefore, the installation work is easy and the antenna getter can be used.
また、リング状部材はリング装着用部材とともに隙間の
ない隔壁を形成するので、蛍光面やシャドウマスクに付
着していた異物、支持バネ等によって削られた内部導電
膜の微粒子が、この隔壁によって阻止され、低圧電極と
高圧電極間に移動してくることが阻止されるので、放電
やストレーエよツションのない良好な耐電圧特性を有す
る陰極線管を得ることができる。In addition, the ring-shaped member forms a barrier wall with no gaps together with the ring mounting member, so foreign matter attached to the fluorescent screen or shadow mask, fine particles of the internal conductive film scraped by the support spring, etc. are blocked by this barrier wall. Since the particles are prevented from moving between the low-voltage electrode and the high-voltage electrode, it is possible to obtain a cathode ray tube with good withstand voltage characteristics without discharge or stray tension.
［発明の実施例］
第１図はこの発明の一実施例の要部を示す拡大断面図、
第２図は第１図ＩＩ − ＩＩ線に沿う断面図で、第５
図と同一部分には同一符号を付してその説明を省略する
。[Embodiment of the Invention] FIG. 1 is an enlarged sectional view showing a main part of an embodiment of the invention;
Figure 2 is a sectional view taken along line II-II in Figure 1, and
Components that are the same as those in the figures are given the same reference numerals and their explanations will be omitted.
図において、（ｌ２）は高分子絶縁材で形成されたリン
グ状部材で、このリング状部材（１２）は第３図で示す
ような切欠部（１２ａ）を有する平面環状に形成され、
その外周直径はネック部（３）の内径より大径に形威さ
れている。そのため、このリング状部材（ｌ２）はネッ
ク部（３）内に挿入されたとき、それ自身の弾力によっ
て外周がネック部（３）の内壁に接触する。In the figure, (l2) is a ring-shaped member made of a polymeric insulating material, and this ring-shaped member (12) is formed into a planar annular shape having a notch (12a) as shown in FIG.
Its outer diameter is larger than the inner diameter of the neck (3). Therefore, when this ring-shaped member (l2) is inserted into the neck part (3), its outer periphery contacts the inner wall of the neck part (3) due to its own elasticity.
（１３ａ） ， （１３ｂ）は上記電子銃（ｌ１）の高
圧電極（８）の外周部にその軸線方向へ所定間隔存して
設けられた金属部材で、リング状部材（１２）は複数枚
、ここでは２枚が上記金属部材（１３ａ） ， （１３
ｂ）により位置決めされて装着されている。この装着に
あたり、第２図で示すように２枚の金属部材（１３ａ）
， （１３ｂ）は、上記切欠部（１２ａ）が周まわり
に位置をずらせて配置されている。(13a) and (13b) are metal members provided on the outer periphery of the high-voltage electrode (8) of the electron gun (l1) at a predetermined interval in the axial direction thereof, and a plurality of ring-shaped members (12), Here, the two metal members (13a) and (13
b) is positioned and installed. For this installation, as shown in Figure 2, two metal members (13a)
, (13b), the cutout portions (12a) are arranged at different positions around the circumference.
上記構戊において、リング状部材（１２）の内周と、高
圧電極（８）の外周との間に生ずる隙間が問題となるけ
れども、この隙間はリング状部材（ｌ２）とリング装着
用部材（１３ａ） ， （１３ｂ）によって閉塞するこ
とができる。In the above structure, the problem is the gap that occurs between the inner periphery of the ring-shaped member (12) and the outer periphery of the high-voltage electrode (8). 13a) and (13b).
また、リング状部材（ｌ２）に設けた切矢部（１２ａ）
によって生じる隙間も、上述のように２枚もしくはそれ
以上のリング状部材（１２）を切欠部（１２ａ）の位置
をずらせて重ねることにより防ぐことができる。In addition, a cut arrow part (12a) provided on the ring-shaped member (l2)
The gap caused by this can also be prevented by stacking two or more ring-shaped members (12) with their notches (12a) shifted in position as described above.
このような構成にすることにより、蛍光面（４）やシャ
ドウマスク（６）等に付着していた異物は、このリング
状部材（ｌ２）およびリング装着用部材（１３ａ） ，
（１３ｂ）で構成される隔壁に阻止され、高圧電極（
８）と低圧電極（７）との間に移動することができず、
放電やストレーエミッションのない耐電圧特性の良好な
陰極線管を得ることができる。With this configuration, foreign matter attached to the phosphor screen (4), shadow mask (6), etc. can be removed from the ring-shaped member (l2) and the ring attachment member (13a).
(13b) is blocked by the partition wall composed of the high voltage electrode (
8) and the low voltage electrode (7),
A cathode ray tube with good withstand voltage characteristics without discharge or stray emissions can be obtained.
また、従来例のようなネック部（３）の内面に、隔壁（
ｌ２）を取付けるための煩雑な作業を必要とせず、アン
テナゲツタ（１０）を用いることも可能となる。さらに
、アンテナゲッタ（ｌＯ）や支持バネ（９）よりも低圧
電極（７）側に隔壁が設けられているため、支持バネ（
９）等によって削り取られた内部導電膜（５）の微粒子
も阻止できるので、良好な耐電圧特性の陰極線管を得る
ことができる。In addition, a partition wall (
It is also possible to use the antenna getter (10) without the need for complicated work for attaching the antenna getter (10). Furthermore, since the partition wall is provided closer to the low voltage electrode (7) than the antenna getter (lO) and the support spring (9), the support spring (
9) etc., the fine particles of the internal conductive film (5) can be blocked, so that a cathode ray tube with good withstand voltage characteristics can be obtained.
第４図はリング状部材（ｌ２）の他の実施例の斜視図で
、リング状に成形されかつ両端部が重なり合った形状と
したものである。このリング状部材（１２）を用いれば
、装着するリング状部材は１枚で前記実施例と同様の効
果が有り、良好な耐電圧特性を有する陰極線管を得るこ
とができる。FIG. 4 is a perspective view of another embodiment of the ring-shaped member (l2), which is formed into a ring shape with both ends overlapping each other. If this ring-shaped member (12) is used, it is possible to obtain the same effect as the above embodiment with only one ring-shaped member attached, and to obtain a cathode ray tube having good withstand voltage characteristics.
［発明の効果］
以上のように、この発明によれば、高圧電極の外周に設
けられたリング装着用部材と、この部材によって位置決
めされてネック部内に挿入されたとき、その外周がネッ
ク部の内壁面に弾性力でもって隙間なく当接するリング
状部材とで構成される隔壁を備えたものであるから、簡
単な取付作業で上記リング状部材の装着ができ、電子銃
の高圧電極と低圧電極間の異物が移動するのを阻止して
、放電やストレーエミッションの発生しない耐電圧特性
の良好な陰極線管が得られる効果がある．[Effects of the Invention] As described above, according to the present invention, the ring mounting member provided on the outer periphery of the high voltage electrode and the ring mounting member provided on the outer periphery of the high voltage electrode, when positioned by this member and inserted into the neck portion, the outer periphery of the high voltage electrode is inserted into the neck portion. Since it is equipped with a partition wall consisting of a ring-shaped member that contacts the inner wall surface with elastic force without any gaps, the ring-shaped member can be attached with a simple installation process, and the high-voltage electrode and low-voltage electrode of the electron gun can be easily attached. This has the effect of preventing foreign matter from moving between the tubes and providing a cathode ray tube with good withstand voltage characteristics that does not cause discharge or stray emissions.
第１図はこの発明による陰極線管の一例を示す要部の拡
大断面図、３４２図は第１図ＩＩ 一ＩＩ線に沿う矢視
断面図、第３図はこの実施例におけるリング状部材の平
面図、第４図はリング状部材の他の例を示す平面図、第
５図は従来の陰極線管の構成を示す断面図、第６図は従
来の陰極線管の他の例を示す要部の拡大断面図である。
（３） ・・・ネック部、（１２）−・・リング状部材
、（１２ａ）・・・切欠部、（１３ａ） ， （１３ｂ
）・・・リング装着用部材。
なお、各図中、同一符号は同一または相当部分を示す。FIG. 1 is an enlarged cross-sectional view of essential parts showing an example of a cathode ray tube according to the present invention, FIG. 342 is a cross-sectional view taken along line II-II in FIG. 4 is a plan view showing another example of the ring-shaped member, FIG. 5 is a sectional view showing the structure of a conventional cathode ray tube, and FIG. 6 is a main part showing another example of a conventional cathode ray tube. It is an enlarged sectional view. (3) Neck part, (12) Ring-shaped member, (12a) Notch part, (13a), (13b
)...Ring attachment member. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
と、この部材によつて位置決めされたネック部内に電子
銃を装着したとき弾性力でもつてその外周がネック部の
内壁面に隙間なく当接する電気絶縁材で形成されてなる
リング状部材とを備えたことを特徴とする陰極線管。(1) When the electron gun is mounted inside the neck part positioned by the ring mounting member provided on the outer periphery of the high-voltage electrode, the outer periphery will be attached to the inner wall surface of the neck part by elastic force without any gap. A cathode ray tube comprising: a ring-shaped member made of an electrically insulating material that abuts against each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15089589A JPH0317938A (en) | 1989-06-13 | 1989-06-13 | Cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15089589A JPH0317938A (en) | 1989-06-13 | 1989-06-13 | Cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317938A true JPH0317938A (en) | 1991-01-25 |
Family
ID=15506724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15089589A Pending JPH0317938A (en) | 1989-06-13 | 1989-06-13 | Cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317938A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094442A (en) * | 1990-07-30 | 1992-03-10 | Xerox Corporation | Translating electronic registration system |
| US5234208A (en) * | 1991-01-30 | 1993-08-10 | Production Lines, Inc. | Document feeder apparatus utilizing driven belts |
-
1989
- 1989-06-13 JP JP15089589A patent/JPH0317938A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094442A (en) * | 1990-07-30 | 1992-03-10 | Xerox Corporation | Translating electronic registration system |
| US5234208A (en) * | 1991-01-30 | 1993-08-10 | Production Lines, Inc. | Document feeder apparatus utilizing driven belts |
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