JPS6033743U - Shadow mask structure for color cathode ray tube - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図はマスクフレーム組立（ＭＦ）を示す斜視図、第
２図は第１図の一部の断面図、第３図は第１図のホルダ
部の断面図、第４図にはマスクドーミングを示す模式図
、第５図はＭＦの一例の一部を示す斜視図、第６図はド
ーミングを低減させる例のマスクの動きを示す模式図、
第７図は９０゜管におけるビーム移動量を示す線図、第
８図はドーミングを示す模式図、第９図はドーミングに
よるビーム移動を示す線図、第１０図はマスクの膨張を
説明する模式図、第１１図はマスクの膨張によるビーム
移動を示す線図、第１２図はドーミングと膨張とを合成
した場合のビーム移動を示す線図、第１３図は本考案の
１実施例のＭＦ開固着示す模式図、第１４図は第１表を
説明するための線図、第１５図は従来のＭＦ開固着示す
模式図、第１６図は本考案の１実施例の構造におけるビ
ーム移動を示す線図である。 １・・・・・・マスク、１ａ・・・・・・マスク面部、
１ｂ・・・・・・ス’カート部、２−−−−−−マスク
板、３・・・・・・フレーム、４・・・・・・ホルダ、
５・・・・・・熱補正用バイメタル片。 第９図 第１２図Figure 1 is a perspective view showing the mask frame assembly (MF), Figure 2 is a cross-sectional view of a part of Figure 1, Figure 3 is a cross-sectional view of the holder part in Figure 1, and Figure 4 shows the mask doming. FIG. 5 is a perspective view showing a part of an example of MF, FIG. 6 is a schematic diagram showing the movement of a mask in an example of reducing doming,
Figure 7 is a diagram showing the amount of beam movement in a 90° tube, Figure 8 is a schematic diagram showing doming, Figure 9 is a diagram showing beam movement due to doming, and Figure 10 is a diagram explaining mask expansion. 11 is a diagram showing the beam movement due to mask expansion, FIG. 12 is a diagram showing the beam movement when doming and expansion are combined, and FIG. 13 is a diagram showing the MF opening of one embodiment of the present invention. FIG. 14 is a diagram for explaining Table 1, FIG. 15 is a schematic diagram showing conventional MF open fixation, and FIG. 16 shows beam movement in the structure of one embodiment of the present invention. It is a line diagram. 1...Mask, 1a...Mask surface part,
1b...Skirt part, 2---Mask plate, 3...Frame, 4...Holder,
5...Bimetal piece for heat correction. Figure 9 Figure 12

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 実質的に矩形状で多数のビーム開孔を有する有効面と前
記有効面の周囲で折り曲げられたスカート部からなるシ
ャドウマスクの前記スカート部をサポートフレームに多
数点で固着して前記有効面を所定位置に保持するカラー
ブラウン管用シャドウマスク構体において、前記実質的
に矩形状の隅部の固着点が他の固着点よりも前記有効面
に近接し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。The skirt portion of the shadow mask, which is composed of an effective surface that is substantially rectangular and has a large number of beam apertures, and a skirt portion that is bent around the effective surface, is fixed to a support frame at multiple points to set the effective surface at a predetermined value. A shadow mask structure for a color cathode ray tube held in position, characterized in that fixing points at the corners of the substantially rectangular shape are closer to the effective surface than other fixing points. .