JPH0261046U

JPH0261046U -

Info

Publication number: JPH0261046U
Application number: JP14041988U
Authority: JP
Priority date: 1988-10-27
Filing date: 1988-10-27
Publication date: 1990-05-07

Description

[Brief explanation of drawings]

第１図は、本考案の一実施例を示す分解斜視図
、第２図は、第１図の実施例におけるホルダーの
一部拡大図、第３図は、第１図の実施例における
４極コンバージエンスマグネツトの回転範囲を示
す図、第４図は、第１図の実施例における６極コ
ンバージエンスマグネツトの回転範囲を示す図、
第５図は、コンバージエンスマグネツト回転範囲
制限手段の他の例を示す図、第６図は、コンバー
ジエンスマグネツト回転範囲制限手段のさらに他
の例を示す図、第７図および第９図は、従来のス
タテイツク・コンバージエンスマグネツト・アセ
ンブリを示す図、第８図は、２極、４極、６極コ
ンバージエンスマグネツトのＲ，Ｇ，Ｂの電子ビ
ームに対する機能を説明するための図である。２ａ，２ｂ……２極コンバージエンスマグネツ
ト、３３ａ，３３ｂ……４極コンバージエンスマ
グネツト、３４ａ，３４ｂ……６極コンバージエ
ンスマグネツト、５，６，７……リング、８……
ロツクリング、９……バンド、３１……ホルダー
、３５ａ，３５ｂ，３６ａ，３６ｂ……凸部、３
７ａ，３７ｂ，３８ａ，３８ｂ……溝。 Fig. 1 is an exploded perspective view showing an embodiment of the present invention, Fig. 2 is a partially enlarged view of the holder in the embodiment of Fig. 1, and Fig. 3 is a four-pole arrangement in the embodiment of Fig. 1. A diagram showing the rotation range of the convergence magnet, FIG. 4 is a diagram showing the rotation range of the six-pole convergence magnet in the embodiment of FIG. 1,
5 is a diagram showing another example of the convergence magnet rotation range limiting means, FIG. 6 is a diagram showing still another example of the convergence magnet rotation range limiting means, FIGS. 7 and 9 8 is a diagram showing a conventional static convergence magnet assembly, and FIG. 8 is a diagram for explaining the functions of two-pole, four-pole, and six-pole convergence magnets for R, G, and B electron beams. It is. 2a, 2b... 2-pole convergence magnet, 33a, 33b... 4-pole convergence magnet, 34a, 34b... 6-pole convergence magnet, 5, 6, 7... Ring, 8...
Lock ring, 9...Band, 31...Holder, 35a, 35b, 36a, 36b...Protrusion, 3
7a, 37b, 38a, 38b...grooves.

Claims

[Claims for Utility Model Registration] (1) A cylindrical holder fitted into the neck portion of a cathode ray tube, a ring-shaped convergence magnet rotatably fitted to the holder, and a convergence magnet fitted to the holder. and a ring for preventing co-rotation of the convergence magnet, the static convergence magnet assembly comprising a rotation range limiting means for limiting the rotation range of the convergence magnet. net assembly. (2) The rotation range limiting means includes a circumferential groove provided on the outer peripheral surface of the holder, and a convex portion provided on the inner peripheral side of the convergence magnet and engaged with the groove. A static convergence magnet assembly according to claim 1. (3) The rotation range limiting means includes a convex portion provided on the outer circumferential surface of the holder, and a notch portion provided on the inner circumferential side of the convergence magnet and engaged with the convex portion. 2. The static convergence magnet assembly of claim 1. (4) The rotation range limiting means is provided on a convex portion provided on one side of the convergence magnet and on the inner peripheral side of the ring adjacent to the convergence magnet, and is engaged with the convergence portion. 2. The static convergence magnet assembly of claim 1, further comprising a mating notch.