JPH0170257U

JPH0170257U -

Info

Publication number: JPH0170257U
Application number: JP1987166449U
Authority: JP
Priority date: 1987-10-30
Filing date: 1987-10-30
Publication date: 1989-05-10

Description

[Brief explanation of the drawing]

第１図はこの考案の第一の実施例を示す位置規
制部材の斜視図、第２図はその平面図、第３図は
正面図、第４図は全体的な平面図、第５図はその
正面図、第６図はこの考案の第二の実施例を示す
平面図、第７図はその正面図、第８図は支持部の
斜視図、第９図は固定の変形例を示す斜視図、第
１０図は環状凹部形状の変形例を示す平面図、第
１１図は一般的な蛍光表示管の分解斜視図、第１
２図はその縦断側面図、第１３図は従来例を示す
支持金具の斜視図である。１……基板、３……蛍光体、５ａ，５ｂ……制
御電極、６ａ，６ｂ……タングステンワイヤ（陰
極線）、２１，２２……支持金具（支持手段）、
２５……陰極線位置規制部材、２５ａ，２５ｂ…
…環状凹部、２６，２７……マーク、３１，３２
……支持金具（支持手段）。 Fig. 1 is a perspective view of a position regulating member showing a first embodiment of this invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view, Fig. 4 is an overall plan view, and Fig. 5 is a perspective view of a position regulating member showing a first embodiment of this invention. 6 is a plan view showing a second embodiment of this invention, FIG. 7 is a front view thereof, FIG. 8 is a perspective view of the support part, and FIG. 9 is a perspective view showing a modification of the fixing part. 10 is a plan view showing a modified example of the annular recess shape, FIG. 11 is an exploded perspective view of a general fluorescent display tube, and FIG.
FIG. 2 is a longitudinal sectional side view thereof, and FIG. 13 is a perspective view of a conventional support fitting. 1... Substrate, 3... Fluorescent substance, 5a, 5b... Control electrode, 6a, 6b... Tungsten wire (cathode wire), 21, 22... Support fitting (supporting means),
25... Cathode ray position regulating member, 25a, 25b...
...Annular recess, 26, 27...Mark, 31, 32
...Supporting metal fittings (supporting means).

Claims

[Scope of utility model registration request]

A plurality of cathode rays that emit thermoelectrons when a voltage is applied, a control electrode that controls the flow of the thermoelectrons emitted from these cathode rays, a phosphor that is provided on a substrate and emits light upon receiving the thermoelectrons, and the cathode rays. In the fluorescent tube, a plurality of fluorescent tubes are fixed in parallel on the substrate surface and receive pressure contact with the cathode rays to regulate the height between the phosphor and the cathode rays and the spacing between the cathode rays. A cylindrical cathode ray position regulating member having an annular recess is provided, and a mark is formed to indicate the installation position of the cathode ray position regulating member in the axial direction with respect to the substrate and the installation position of the annular recess portion. Fluorescent tube.