JPS5998564U

JPS5998564U - cathode ray tube

Info

Publication number: JPS5998564U
Application number: JP19406682U
Authority: JP
Inventors: 合志　誠治; 田中　徳四郎
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1982-12-23
Filing date: 1982-12-23
Publication date: 1984-07-04

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

[Brief explanation of the drawing]

第１図はブラウン管のゲッタフラッシュ時の状態を示す
図でありａ図は説明用断面図、ｂ図はパネル部上のスポ
ットのズレを示す半面図、第２図はネック部及びファン
ネル部と電子銃の関係を示す図であり、ａ図は説明用要
部拡大断面図、ｂ図はａ図をＡ−Ａ線に沿って切断して
見た断面図、第３図はブラウン管の封止状態を示す説明
用要部拡大断面図、第４図はステムと電子銃のズレを示
す説明用要部断面図、第５図及び第６図は本考案の一実
施例を示す図であり、第５図ａはファンネル部及びネッ
ク部と、電子銃の関係を示す説明用要部拡大断面図、第
５図すは第５図ａをＢ−Ｂ線に沿って切断して見た断面
図、第６図は本実施例の応力関係を示す説明用断面図、
第７図は補助バルブスペーサを有するバルブスペーサの
一例を示す図であり、ａ図は側面図、ｂ図は平面図、第
８図は本発明の詳細な説明用要部断面図である。１・・・パネル部、２・・・ファンネル部、３・・・ネ
ック部、４・・・電子銃、５・・・ファンネルゲッタ、
６゜２６・・・ゲッタサポート、７・・・バルブスベＪ
す、８・・・コンバーカップ、９・・・ステム、１３・
・・リード線、２７・・・補助バルブスペーサ。Figure 1 is a diagram showing the state of the cathode ray tube during getter flash. Figure a is a cross-sectional view for explanation, Figure b is a half-view showing the misalignment of the spot on the panel, and Figure 2 shows the neck, funnel, and electron beams. Figure 3 is a diagram showing the relationship between the guns, where Figure A is an enlarged cross-sectional view of the main part for explanation, Figure B is a cross-sectional view of Figure A taken along line A-A, and Figure 3 is a sealed state of the cathode ray tube. FIG. 4 is an explanatory enlarged sectional view of the main part showing the misalignment between the stem and the electron gun, FIGS. 5 and 6 are views showing one embodiment of the present invention, and FIG. FIG. 5a is an enlarged sectional view of important parts for explanation showing the relationship between the funnel part, the neck part, and the electron gun; FIG. 5 is a sectional view of FIG. FIG. 6 is an explanatory cross-sectional view showing the stress relationship in this example;
FIG. 7 is a diagram showing an example of a valve spacer having an auxiliary valve spacer, FIG. 7A is a side view, FIG. 7B is a plan view, and FIG. DESCRIPTION OF SYMBOLS 1... Panel part, 2... Funnel part, 3... Neck part, 4... Electron gun, 5... Funnel getter,
6゜26...Getta Support, 7...Valve Sube J
8...Conver cup, 9...Stem, 13.
...Lead wire, 27...Auxiliary valve spacer.

Claims

[Scope of utility model registration request]

(1) Consisting of a panel part, a funnel part, a neck part, and an electron gun assembled on a stem welded to the end of the neck part, and a plurality of valves at the tip of the electron gun in the direction of the panel part. In a cathode ray tube in which a spacer and a getter support of a funnel getter are fixedly attached, at least one of the plurality of valve spacers has a distal end portion of the valve spacer located at a position facing the getter support;
A cathode ray tube comprising an auxiliary valve spacer having a lower contact pressure than the valve spacer.

(2) The cathode ray tube according to claim 1, which is a registered utility model, characterized in that a convex portion that presses against the neck portion is provided at the same position where the valve spacer of the getter support contacts the neck portion.゛

(3) A value obtained by multiplying the distance from the contact position of the valve spacer and the neck part to the contact position of the auxiliary valve spacer and the neck part by the contact pressure of the auxiliary valve spacer to the neck part, and the value of the distance between the valve spacer and the neck part. The distance from the contact position with the neck part to the contact position between the getter support and the funnel part is adjusted so that the value obtained by multiplying the contact pressure between the getter support and the funnel part is approximately the same. A cathode ray tube according to claim 1 of the utility model registration claim.