JPH01231246A - Installing mechanism of magnetic shield of cathode-ray tube - Google Patents
Installing mechanism of magnetic shield of cathode-ray tubeInfo
- Publication number
- JPH01231246A JPH01231246A JP5682088A JP5682088A JPH01231246A JP H01231246 A JPH01231246 A JP H01231246A JP 5682088 A JP5682088 A JP 5682088A JP 5682088 A JP5682088 A JP 5682088A JP H01231246 A JPH01231246 A JP H01231246A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic shield
- frame
- spring
- bent
- shadow mask
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、カラー受像管におけろ磁気シールドの取付
構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mounting structure for a magnetic shield in a color picture tube.
従来のカラー受像管においては、地磁気等の外部磁界を
遮蔽するため管内に磁気シールドを収容しており、この
磁気シールドはシャドウマスクを保持するフレームに取
付けられている。このような従来の取付構造としては実
開昭５３−１６２７５号、実開昭５４−１２５５７３号
公報があり、その概要を第４図に示している。即ち第４
図において、１はＬ字状に形成されたフレーム、２１よ
多数の細孔を有し、フレーム１の側壁部１ｂに溶接され
たシャドウマスク、３ばこのシャドウマスク２の反対側
に延長してフレーム１のフランジ部ＩＣに取付けられた
筒状または板状の内部磁気シールドで、電子ビームの走
行路を覆うように配置されている。４は磁気シールド３
をフレーム１に固定するためのスプリングで、４〜５コ
の板ばね材を第５図に示すようにほぼ７字状に屈曲させ
、その中間部両側に凹部４ａを形成している。In conventional color picture tubes, a magnetic shield is housed inside the tube to shield external magnetic fields such as earth's magnetism, and this magnetic shield is attached to a frame that holds a shadow mask. Such conventional mounting structures are disclosed in Japanese Utility Model Application Publication No. 53-16275 and Japanese Utility Model Application Publication No. 54-125573, an outline of which is shown in FIG. That is, the fourth
In the figure, reference numeral 1 denotes a frame formed in an L-shape, a shadow mask 21 having a large number of pores, and welded to the side wall 1b of the frame 1, and a shadow mask 3 extending to the opposite side of the shadow mask 2. A cylindrical or plate-shaped internal magnetic shield attached to the flange IC of the frame 1 is arranged so as to cover the travel path of the electron beam. 4 is magnetic shield 3
This is a spring for fixing the frame 1 to the frame 1, and four to five leaf springs are bent into an approximately figure 7 shape as shown in FIG. 5, and a recess 4a is formed on both sides of the middle part.
このようなスプリング４は、その両端把手部４ｂを矢印
のように押し縮めて磁気シールド３の穴３ａおよびフレ
ーム１の穴１ａ内に挿入し、凹部４ａを両者に係止した
後、押圧力を解除することによって３者を一体に固定す
るものである。Such a spring 4 is inserted into the hole 3a of the magnetic shield 3 and the hole 1a of the frame 1 by compressing the handle portions 4b at both ends as shown by the arrows, and after locking the recess 4a in both, a pressing force is applied. By releasing it, the three parts are fixed together.
ところが以上のような従来の取付構造においては、スプ
リング４を押圧した際、その復帰力のため、スプリング
が手あるいは治具等から飛び出して飛散し、これがシャ
ドウマスク２に衝突して、シャドウマスク２を損傷する
などの欠陥を発生している。なお、フレーム１および磁
気シールド３に穴を開けるため、スプリング４は可能な
限り小さい方が望ましく、この穴が大きいと上記欠陥を
助長させるものであった。However, in the conventional mounting structure as described above, when the spring 4 is pressed, its return force causes the spring to fly out from the hand or the jig and scatter, colliding with the shadow mask 2 and causing the shadow mask 2 to be damaged. A defect has occurred, such as damaging the product. Note that since holes are made in the frame 1 and the magnetic shield 3, it is desirable that the spring 4 be as small as possible; if the holes are large, the above-mentioned defects will be aggravated.
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、スプリングの飛散を防ぐとともに、磁気シー
ルドをフレームに固定する作業が容易にできる取付構造
を得る乙とを目的とする。This invention was made to solve the above-mentioned problems, and aims to provide a mounting structure that prevents the spring from scattering and also facilitates the work of fixing the magnetic shield to the frame.
〔課題を解決するための手段〕
この発明に係る取付構造は、たんざく状の鋼板の両端を
それぞれ屈曲させるとともに、その中間部に凸部を設け
たスプリングを、フレームの穴とこれに対向して設けら
れた磁気シールドの穴に磁気シールド側からシャドウマ
スク側に押圧挿入し、このスプリングでフレームと磁気
シールドを挾んで固定するものである。[Means for Solving the Problems] The mounting structure according to the present invention has both ends of a tanzaku-shaped steel plate bent, and a spring provided with a protrusion in the middle thereof, facing the hole in the frame. The shadow mask side is pressed into the hole provided in the magnetic shield from the magnetic shield side, and the frame and magnetic shield are sandwiched and fixed by the spring.
この発明においては、たんざく状の鋼板の両端を屈曲さ
せ、その中間部に凸部を設けたスプリングを使用したの
で、スプリングの一方の屈曲端でシャドウマスク側から
フレームを押え、もう一方の屈曲端と中間部に設けた凸
部で磁気シールド側から磁気シールドを押えて磁気シー
ルドとフレームを固定するものである。In this invention, a spring is used in which both ends of a tanzaku-shaped steel plate are bent and a convex portion is provided in the middle.One bent end of the spring presses the frame from the shadow mask side, and the other bent end presses down the frame from the shadow mask side. The convex portions provided at the ends and the middle part hold down the magnetic shield from the magnetic shield side and fix the magnetic shield and frame.
以下この発明の一実施例を第１図、第２図について説明
する。図において、１〜３は上記従来例のものと同様で
あり、５（よスプリングを示すもので、た八ざく状の鋼
板の両端を異なる方向に７字状に屈曲させた折り曲げ辺
５ａ、５ｂを設け、かつその中間部に横に張り出した凸
部５Ｃを形成して構成されている。なおこのような形状
（よプレスで一度に成形することが可能である。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, numerals 1 to 3 are the same as those of the conventional example described above, and numerals 1 to 3 are springs 5a and 5b, which are bent sides 5a and 5b made by bending both ends of a square-shaped steel plate in different directions in a 7-shape. , and a convex portion 5C extending laterally in the middle thereof.It should be noted that such a shape (can be formed at once with a press).
以上のようなスプリング５を第１図に示すフレーム１の
穴Ｘ＆と、これに対向して設けられた磁気シール；：３
の穴３ａに上方（磁気シールド３側）からシャドウマス
ク２の方向に押圧すると、スプリング５の下部折り曲げ
辺５ｂがフレーム１の穴１ａと磁気シールド３の穴３ａ
の端に接触ずろことにより内側へ押されてたわみ上記両
穴１ａ、３ａに嵌挿される。The above-described spring 5 is inserted into the hole X of the frame 1 shown in FIG. 1, and a magnetic seal provided opposite thereto;
When pressed into the hole 3a from above (from the magnetic shield 3 side) in the direction of the shadow mask 2, the lower bent side 5b of the spring 5 connects with the hole 1a of the frame 1 and the hole 3a of the magnetic shield 3.
When it comes into contact with the ends of the screws, it is pushed inward and bent, and is inserted into both the holes 1a and 3a.
このようにしてスプリング５の折り曲げ辺５ｂが穴Ｉｌ
ｌ、 ３Ｎを通過すると、その弾性力によって元の状態
に戻る。このようにスプリング５の折り曲げ部５ｂが元
の状態に戻ることにより、フレーム１と磁気シールド３
を挾／してシイドウマスク２側からは折り曲げ辺５ｂの
端がフレーム１を押え、磁気シールド３側からはスプリ
ング５の中間部に設けた凸部５Ｃとスプリング５のもう
一方の折り曲げ部５ａの端が磁気シールド３を押えて固
定できろ。In this way, the bent side 5b of the spring 5 is connected to the hole Il.
After passing through 1 and 3N, its elastic force returns it to its original state. By returning the bent portion 5b of the spring 5 to its original state in this way, the frame 1 and the magnetic shield 3
From the shield mask 2 side, the end of the bent side 5b presses the frame 1, and from the magnetic shield 3 side, the convex portion 5C provided in the middle of the spring 5 and the end of the other bent portion 5a of the spring 5. Hold down the magnetic shield 3 and fix it.
以上のようにスプリング５をフレーム１の穴１ａと磁気
シールド３の六３ａに上から押圧するだけて、フレーム
１に磁気シールド３を固定することができるため、スプ
リング４の飛散を防止するとともに、シャドウマスク２
の損傷を未然に防ぐことができ、また、取付作業の効率
を向上させることができる。As described above, since the magnetic shield 3 can be fixed to the frame 1 by simply pressing the spring 5 from above into the hole 1a of the frame 1 and the six 3a of the magnetic shield 3, the spring 4 can be prevented from scattering, and shadow mask 2
Damage to the parts can be prevented, and the efficiency of the installation work can be improved.
なお上記実施例においては、たんざく状の鋼板の両端を
異なる方向に７字状に形成した場合について説明したが
、第３図に示すように、鋼板の両端を同一の方向に７字
状に屈曲させ、その中間部に設けた凸部５Ｃを折り曲げ
辺５＆、５ｂと逆の方向に形成した構成にしてもよい。In the above embodiment, a case was explained in which both ends of the tanzaku-shaped steel plate were formed in a figure 7 shape in different directions, but as shown in Fig. 3, both ends of the steel plate were formed in a figure 7 shape in the same direction. It may be bent, and the convex portion 5C provided at the intermediate portion thereof may be formed in the opposite direction to the bent sides 5&, 5b.
以上のようにこの発明によれば、スプリングの取扱いが
容易となり、内部磁気シールドの取付けを良好なものと
する効果がある。As described above, according to the present invention, the spring can be easily handled and the internal magnetic shield can be easily attached.
第１図はこの発明の一実施例をを示す断面図、第２図は
そのスプリング形状を示す斜視図、第３図はこの発明の
他の実施例であるスプリング形状を示す斜視図、第４図
は従来の内部磁気シールドの取付構造を示す断面図、第
５図は従来のスプリング形状を示す斜視図である。
図中、１はフレーム、１ａは穴、２はシャドウマスク、
３は磁気ンールド、３ａは穴、５はスプリング、５ａ、
５ｂは折り曲げ辺、５Ｃは凸部である。
尚、図中同一符号は同−又は相当部分を示す。FIG. 1 is a sectional view showing one embodiment of the present invention, FIG. 2 is a perspective view showing the shape of the spring, FIG. 3 is a perspective view showing the shape of the spring according to another embodiment of the invention, and FIG. The figure is a sectional view showing a conventional internal magnetic shield mounting structure, and FIG. 5 is a perspective view showing a conventional spring shape. In the figure, 1 is a frame, 1a is a hole, 2 is a shadow mask,
3 is a magnetic rod, 3a is a hole, 5 is a spring, 5a,
5b is a bent side, and 5C is a convex portion. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
クを支持するフレーム、このフレームに取付けられ、電
子ビームの走行路を覆う磁気シールド、上記フレームお
よび磁気シールドの穴に嵌挿され、上記磁気シールドを
固定する板状のスプリングを備えた陰極線管において、
たんざく状の鋼板の両端を屈曲させ、かつその中間部に
凸部を設けたスプリングを用い、このスプリングをフレ
ームおよび磁気シールドの穴に押圧して嵌挿することに
より、フレームに磁気シールドを固定してなる陰極線管
の磁気シールドの取付構造。A shadow mask having a large number of pores, a frame that supports this shadow mask, a magnetic shield that is attached to this frame and covers the travel path of the electron beam, and is inserted into holes in the frame and magnetic shield to fix the magnetic shield. In a cathode ray tube equipped with a plate-shaped spring,
The magnetic shield is fixed to the frame by bending both ends of a tanzaku-shaped steel plate and using a spring with a protrusion in the middle.The spring is pressed and inserted into the hole in the frame and magnetic shield, thereby fixing the magnetic shield to the frame. Cathode ray tube magnetic shield mounting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5682088A JPH01231246A (en) | 1988-03-09 | 1988-03-09 | Installing mechanism of magnetic shield of cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5682088A JPH01231246A (en) | 1988-03-09 | 1988-03-09 | Installing mechanism of magnetic shield of cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01231246A true JPH01231246A (en) | 1989-09-14 |
Family
ID=13038008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5682088A Pending JPH01231246A (en) | 1988-03-09 | 1988-03-09 | Installing mechanism of magnetic shield of cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01231246A (en) |
-
1988
- 1988-03-09 JP JP5682088A patent/JPH01231246A/en active Pending
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