JPH04144040A - Shadow mask body structure for color broun tube - Google Patents
Shadow mask body structure for color broun tubeInfo
- Publication number
- JPH04144040A JPH04144040A JP26677490A JP26677490A JPH04144040A JP H04144040 A JPH04144040 A JP H04144040A JP 26677490 A JP26677490 A JP 26677490A JP 26677490 A JP26677490 A JP 26677490A JP H04144040 A JPH04144040 A JP H04144040A
- Authority
- JP
- Japan
- Prior art keywords
- strips
- supporting
- grid
- support part
- arcuate
- 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
- 238000006073 displacement reaction Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007665 sagging Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 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〕
本発明はカラーブラウン管用シャドウマスク構体に関し
、特にアパーチャグリル方式のカラーブラウン管用シャ
ドウマスク構体に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shadow mask structure for a color cathode ray tube, and more particularly to an aperture grill type shadow mask structure for a color cathode ray tube.
従来、この種のアパーチャグリル方式のシャドウマスク
構体は、第１図及び第４図に示すように、互いに対向す
るように配置された弓状支持部１と弓状支持部１を互い
に対向するように保ったままその開隔を広げようと作用
する一対の弾性支持部Ｉ２によって構成されたフレーム
構体及び復数のグリッド条帯３が平行に配列されたアパ
ーチャグリル方式のシャドウマスクにより構成され、グ
リッド条帯３の両端は、それぞれ一対の弓状支持部１間
にまたがるように溶接等の方法で固定されており、各グ
リッド条帯３には、それぞれ所定の荷重で架張されるよ
うに、弾性支持部Ｉ２によって一対の弓状支持部１の間
隔を押し広げようとする応力が加えられている。Conventionally, this type of aperture grill type shadow mask structure has two arcuate support parts 1 and 1 arranged to face each other, as shown in FIGS. 1 and 4. The frame structure is composed of a pair of elastic support parts I2 that act to widen the gap while maintaining the width of the grid, and an aperture grill type shadow mask in which a plurality of grid strips 3 are arranged in parallel. Both ends of the grid strips 3 are fixed by a method such as welding so as to span between the pair of arcuate support portions 1, and each grid strip 3 is stretched with a predetermined load. A stress is applied by the elastic support portion I2 that tends to widen the distance between the pair of arcuate support portions 1.
しかしながら、弓状支持部１自体は、完全剛体では作り
得す、グリッド条帯３の張力荷重及び弾性支持部■２か
らのばね荷重を受けて弾性変形［７状支持部１の各部分
でその変位比（変位量背巾）に差かσトしる為、グリッ
ド粂帯３が電子（−人の衝突番、′よる発熱て熱膨張し
た際、各クリ・ド染帯３にかかる荷重分布曲線の平衡状
態がくずれ、一部のグリッド条帯３にたるみを生じると
いう不ａ今がある。However, the arcuate support part 1 itself undergoes elastic deformation [in each part of the seven-shaped support part 1] due to the tension load of the grid strips 3 and the spring load from the elastic support part 2, which cannot be created with a completely rigid body. In order to determine the difference in the displacement ratio (displacement width), when the grid wire belt 3 thermally expands due to the heat generated by electrons (-human collision number, There is an unfortunate situation in which the equilibrium state of the curve is disrupted and some of the grid stripes 3 become sagging.
−１１）問題へを解決する従来技術としては、弾性当持
部■２による荷重を弓状支持部１のベラセルラ、及びそ
の近傍で支持することにより、弓状支持部１各部分での
変位比の差を最少におさえるといパ１技術か４ｂる（例
えば、特公昭４５−３６２５５公報参叩）
セ明か解決）−ようとする課題〕
上述した従来の支持方法は、弓状支持部自体の弾性変形
による不具合は解決できるか、第４図及び第５図（ａ）
、（ｂ）に示すように、弾性支持部Ｉ２の変形によって
弓状支持部１と組み合わせ／、ニフトーム樽体として倒
れ込みという現象か起こり、弓状支持部］を変位させ、
その変位比か弓状支持部１の各部分て異なりグリッド条
帯にたるみか生ずるという問題点かあった。-11) As a conventional technique to solve the problem, by supporting the load by the elastic support part 2 at the vera cellular of the arcuate support part 1 and its vicinity, the displacement ratio at each part of the arcuate support part 1 is In order to minimize the difference between Can problems caused by deformation be resolved? Figures 4 and 5 (a)
, As shown in (b), due to the deformation of the elastic support part I2, a phenomenon occurs in which the elastic support part I2 is combined with the arcuate support part 1 and collapses as a niftome barrel body, displacing the arcuate support part.
There was a problem in that the displacement ratio was different for each part of the arcuate support part 1, causing slack in the grid stripes.
本発明の目的は、弓状支持部の変位比が一様でグリ・ソ
ド柴帯ＣＪたるみ１２）ないカラーブラウン管用シャド
ウマスク構体を提供することにある。An object of the present invention is to provide a shadow mask structure for a color cathode ray tube in which the displacement ratio of the arcuate support portion is uniform and there is no sag in the CJ.
〔課題を解決するための手段）
本発明は、所定の間隔をおいて互いに対向するように配
置された一対の弓状支持部と、一対の該弓状支持部の間
隔を保ち支持する為の弾性支持部と、一対の前記弓状支
持部間に所定の張力分布をもって架張されたグリ・・／
１−条帯とを有するアパーチャグリル方式のカラーブラ
ウン管用シャドウマスク槽体において、１本の前記弓状
支持部に対し弾性支持部による支持点か少くとも３カ所
設けられている。[Means for Solving the Problems] The present invention includes a pair of arcuate supports arranged to face each other at a predetermined interval, and a pair of arcuate supports for maintaining and supporting the pair of arcuate supports at a distance. A grid stretched with a predetermined tension distribution between an elastic support portion and a pair of the arched support portions.
In the aperture grill type color cathode ray tube shadow mask tank having one strip, at least three support points by elastic support parts are provided for one arcuate support part.
ｒ実施例〕
次に、本発明の実施例について図面を参照して説明する
。Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の第１の実施例の正面図、第２図は第１
図の側面図、第３図（ａ）、（ｂ）は第１図の弓状支持
部と弾性支持部の変形を説明する動作原理図である９
第１の実施例は、第１図及び第２図に示すように、グリ
ッド条帯３の両端は、弓状支持部１に溶接等の方法で固
定され、弾性支持部■２のばね荷重によってグリッド条
帯３が所定の張力をもって架張されている。FIG. 1 is a front view of the first embodiment of the present invention, and FIG. 2 is a front view of the first embodiment of the present invention.
The side view of the figure, and FIGS. 3(a) and 3(b) are operation principle diagrams for explaining the deformation of the arcuate support part and the elastic support part in FIG. 1. As shown in Fig. 2, both ends of the grid strip 3 are fixed to the arcuate support section 1 by a method such as welding, and the grid strip 3 is stretched with a predetermined tension by the spring load of the elastic support section 2. has been done.
二の時、第３図（ａ）、（ｂ）に示すように、はね定数
の異なる２種類の弾性支持部２，２ａにて弓状支持体１
を支持するにあたり、その支持点をグリッド条帯３によ
る架張力の中心に対してその両側にて支持する。更に、
弓状支持部１がグリ・・ｌド粂帯３の架張力により平行
に移動するように、それぞれの弾性支持部２，２ａのば
ね定数を設定すると、グリッド条帯３の架張による弓状
支持部１の変位比が弓状支持部１の各部分で一様になる
。In the second case, as shown in FIGS. 3(a) and 3(b), the arcuate support 1 is supported by two types of elastic supports 2 and 2a having different spring constants.
When supporting, the support points are supported on both sides of the center of tension applied by the grid strips 3. Furthermore,
If the spring constant of each elastic support part 2, 2a is set so that the bow-shaped support part 1 moves in parallel due to the tension of the grid strip 3, the bow-shaped support part 1 moves in parallel due to the tension of the grid strip 3. The displacement ratio of the support part 1 becomes uniform in each part of the arcuate support part 1.
このことは、第１図において、逆にグリッド条帯３が熱
膨張し弓状支持部２，２ａが変位する場合においても並
行に変位し、各グリッド条帯３にかかる架張力分布も変
化が極めて小さい為、グリッド条帯３にたるみを生しる
ことはないという効果かある、。This means that even when the grid strips 3 thermally expand and the arcuate supports 2, 2a are displaced in FIG. Since it is extremely small, it has the effect of not causing any slack in the grid stripes 3.
尚、弾性支持部２，２ａと弓状支持部１の接合点は、む
しろ、曲げ応力に対して変形しやすい方か弓状支持部１
に対して弾性支持部２，２ａの変形が及ぼす影響か少な
くてすむ。Incidentally, the junction point between the elastic support parts 2, 2a and the arcuate support part 1 is rather the one that is more easily deformed by bending stress or the joint point of the arcuate support part 1.
The effect of deformation of the elastic support portions 2, 2a on the structure can be reduced.
弓状支持部１弾性支持部、グリッド粂帯の材質、形状等
は必要に応じて変更し得る。又、各グリッド条帯に加わ
る架張力も任意に設定し得ることはいうまでもない７
ここでは、弾性支持部に並接合金を用いることを特徴と
するものて、弾性支持部の変形量か容易に調整できると
共に精度を上げるもので、各グリッド条帯にかかる架張
力分布の変化をより小さくてきるという効果がある。The material, shape, etc. of the elastic support part of the arcuate support part 1 and the grid conch band can be changed as necessary. In addition, it goes without saying that the tension applied to each grid strip can be arbitrarily set. It can be easily adjusted and increases accuracy, and has the effect of reducing changes in the tension distribution applied to each grid strip.
以上説明したように本発明は、グリッド条帯の架張に対
し、ばね定数の異なる２種の弾性支持部にて３点以上で
支持し、弓状支持部の変位比を弓状支持部の各部分でほ
ぼ同じになるように設定することて、グリ・ソド条帯か
電子ビームの衝突により発熱し、熱膨張を起こし、それ
に伴い、弓状支持部が変位した時に、弓状支持部変位前
後において５弓状支持部各部分の荷重分布の変化が極め
て少ないという効果を有する。As explained above, the present invention supports the tensioning of the grid strip at three or more points using two types of elastic support parts with different spring constants, and the displacement ratio of the arcuate support parts is adjusted to By setting each part to be almost the same, when the Gri-Sodo strip or the electron beam collides with each other, heat is generated, thermal expansion occurs, and the arcuate support is displaced accordingly. This has the effect that there is very little change in the load distribution of each part of the five arcuate support parts in the front and rear directions.
いいかえれば、個々カブリット束帯が、熱膨張を起こし
た時、熱膨張の前後における個々のグリッド条帯にかか
る張力の変化が極めて小さくおさえられることを意味し
、これによって、クリ・・ノド条帯にたるみと生ずるこ
とを防止できるという効果を有する。In other words, when the individual grid bands undergo thermal expansion, the change in tension applied to each grid band before and after the thermal expansion is kept extremely small, and this means that the change in tension applied to the grid band is extremely small. This has the effect of preventing sagging.
第１図は本発明の一実施例の平面図、第２図は第１図の
側面、第３図＜ａ）、（ｂ）は第１図の弓状支持部と弾
性支持部の変形を説明する動作原理図、断４図は従来の
カラーブラウン管用シャドウマスク構体の側面図、第５
図は第４図の弓状支持部と弾性支持部の変形を説明する
動作原理図である。
■
・弓状支持部、
・弾性支持部Ｉ
・貨
性支持部■
ゲ
ド条帯。FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIGS. Figure 4 is a side view of the conventional shadow mask structure for a color cathode ray tube, and Figure 5 is a cross-sectional view of the operating principle to be explained.
This figure is an operational principle diagram illustrating the deformation of the arcuate support part and the elastic support part in FIG. 4. ■ - Arcuate support part, - Elastic support part I - Curly support part ■ Gedo stripe.
Claims (1)
対の弓状支持部と、一対の該弓状支持部の間隔を保ち支
持する為の弾性支持部と、一対の前記弓状支持部間に所
定の張力分布をもって架張されたグリッド条帯とを有す
るアパーチャグリル方式のカラーブラウン管用シャドウ
マスク構体において、１本の前記弓状支持部に対し弾性
支持部による支持点が少くとも３ヵ所設けられているこ
とを特徴とするカラーブラウン管用シャドウマスク構体
。a pair of arcuate support parts arranged to face each other with a predetermined interval; an elastic support part for maintaining and supporting the pair of arcuate support parts; and between the pair of archiform support parts. In the shadow mask structure for a color cathode ray tube of an aperture grill type having a grid strip stretched with a predetermined tension distribution, at least three support points by elastic support parts are provided for one arcuate support part. A shadow mask structure for a color cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26677490A JPH04144040A (en) | 1990-10-04 | 1990-10-04 | Shadow mask body structure for color broun tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26677490A JPH04144040A (en) | 1990-10-04 | 1990-10-04 | Shadow mask body structure for color broun tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04144040A true JPH04144040A (en) | 1992-05-18 |
Family
ID=17435514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26677490A Pending JPH04144040A (en) | 1990-10-04 | 1990-10-04 | Shadow mask body structure for color broun tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04144040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100385212B1 (en) * | 1999-08-06 | 2003-05-27 | 삼성에스디아이 주식회사 | tension-mask frame assembly for the flat CRT |
-
1990
- 1990-10-04 JP JP26677490A patent/JPH04144040A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100385212B1 (en) * | 1999-08-06 | 2003-05-27 | 삼성에스디아이 주식회사 | tension-mask frame assembly for the flat CRT |
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