JPS6050848A - X-ray leakage prevention device for anode cap - Google Patents

Abstract

PURPOSE:To suppress the move of a shielded plate by providing a hooking neck section that is elastically fit to the recessed groove of the hooking hole of the shielded plate and performs moving stop at the crotched pin section of an anode terminal and firmly engaging and hooking it in the hooking of the shielded plate. CONSTITUTION:An anode terminal 8 consists of an inverted U-shaped fitting section 9 that can externally be engaged and fit to a high voltage feeder 1, crotched pin section 11 that can be fit internally and elastically be fit in the hooking hole 13 of a shielded plate 12. The hooking neck section 14 has a narrow width section 14a and a stepped section 14b. When the hooking neck section 14 is fit in the engagement recessed groove 13a of the hooking hole 13, the shielded plate 12 is positioned at the narrow width section 14a, the shielded plate 12 is loaded on the stepped section 14b, and the hooking neck section 14 is firmly fit in the engagement recessed section 13a by the strongly expanded and opened elastic force of the crotched pin section 11, the shielded plate 12 suppresses its move to the anode plate 8. In addition, when the shielded plate 12 is used, the shielded plate makes contact to the ceiling section 17 of an anode cap 16 and keeps the position where the plate is close to the rear end of the anode 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing leakage of X@ generated from the anode of a cathode ray tube.

The conventional X-ray leakage prevention device 11ri, as shown in perspective in FIG. A shield plate made of 81ζ two-metal #4 plate is fitted inside the ceiling of 611fll is engaged with the locking hole (71) of the shield plate (41, and the left and right foot portions (shield play due to the expansion action of 61) (41t-left and right foot portions (fll(
The structure is such that a shield plate (41) shields the rear of the anode.

However, in the vicinity of the locking hole (7) where the left and right foot portions 161 (fit) are engaged, the left and right foot portions 161 (fit have a smooth shape without any curves).

Shield grate (41 is the direction along the left and right feet + 611f$1 (2 is particularly easy to move, and the left and right feet are 1fll)
When the +61 is connected to the cathode ray tube's anode C2, when the γ node cat 7' 121 y is pushed out, the shield plate (4) shifts and moves from the ceiling (from 81 to the outside rt, when the installation is completed, the shield plate 141 There is a problem in that the shielding effect is deteriorated because the position of the anode may be shifted from the rear of the anode.

In this invention, the two-pronged leg of the anode electron is provided with a locking jaw that elastically fits into the groove of the locking hole of the shield plate to prevent movement, so that the locking IE @ part is shielded. The shield plate is designed to be prevented from moving by firmly fitting and locking into the locking hole of the plate.

Next, one implementation Nt' of this invention will be explained.

Anode terminal (8) ri, bend the thin plate as shown in FIG.

In addition, there is an inverted U-shaped fitting part (9) that can be cut and externally fitted onto the high-pressure supply line (1), and a concave anode DLL2 inner fitting part with elasticity so as to expand from side to side. The bifurcated foot part σ hair surface that can be seen, and the fitting part (91 or foot part till Qll
It consists of locking jaws (4) and (8) that can be thrown between the shield plates and elastically fit into the locking holes of the shield plate.

In other words, the locking jaw part shown in one example has a narrow part (14a) which is thin when viewed from the side, and a stepped part (14b) which is stepped when viewed from the front. (ol's!ffJ<,'
Engagement groove (lRaX1) 1a) of locking hole [113] I
' - Locking jaw part (14aQ4? is inserted 1. Te, narrow part (1
4m) The shield plate is located at (14a), and the shield plate N12) is placed on the stepped part (14b), and the strong expansion elasticity of the bifurcated leg C11) + 111 = Therefore, it is locked. The jaw part 04α4 is firmly attached to the four parts (18a) (1
8a) One shield plate old #:
t, moving 7 blocks +h with respect to the anode terminal +81 (=becomes).

As shown in Fig. 2, the anode cap (16) is densely layered on the back wall of the cathode ray tube': LBl,
In the usage situation where the lill is exposed to the inner surface of the r node 110, it becomes a force that maintains its position.

Then, an appropriate taper is applied to the locking jaw part (14J, for example, stepped Km) so that it can be firmly and elastically fitted to C121 (the shape of 14J is not limited to the example shown in 1, but a shield plate like water supply). When it is thrown, a part of the taper becomes engaged with the engagement recess (18a) (IRa
) It is possible to use various structures such as a two-fitting structure.

In addition, in the example, there is a high pressure supply v on the left and right sides of the fitting part (9).
A claw (9a) and a notch (Ob) that can be fitted into the Kumi-komi-sho are thrown into the protection of the l line (11).

In addition, the shield plate - the above-mentioned bright anode terminal (
81C image layering operation is done by turning the left and right bifurcated amber parts 31) (11)
This autumn, the two-pronged foot part σ1) was inserted in the longitudinal direction of the hole 0, and the opening of the 8-pronged foot part 0 was further reduced. If the locking jaw (4) α4 is rotated by about 90° as it is, the locking jaw (4) α4 will be elastically engaged with the groove (lRm) (18a).

The X-ray leakage prevention device for an anode cap according to the present invention is constructed as described above, and has an anode terminal (8
(on the locking jaw (9) formed on the bifurcated leg lαI of 1)
is the concave groove (1) of the locking hole 1B) of the shield plate) 1126.
8a (xat'i is fixed at a desired position behind the γ node a) and radiates backward from the anode terminal.

This shield plate (support) was able to prevent leakage.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional anode cap, FIG. 2 and subsequent figures show embodiments of the present invention, FIG. 2 is an overall side view, and FIG.
Fig. 8 is a bottom view, Fig. 4 is a plan view of the shield plate, Fig. 5 is a front view of the anode terminal, and the same figure is a side view of Fig. 1. )...High voltage power supply @ (8)...Anode terminal (IQ...Anode C11)...
...Bifurcated leg lI21...Shield plate α cap...Register and hole (lRa)...Concave t
lI (2)... Between the locking jaws)... Braun tube (To)... Anode cap patent applicant Wako Gomue East Co., Ltd.

Claims (1)

[Claims] The cathode ray tube's anode 6 has two elastic connections (the anode connected to the end of the high-voltage feeder) and the dense layer on the back wall of the cathode ray tube (one node cap attached to the high-voltage feeder). In between, shield play 1 for xmmmm protection
``The interposed X-ray leakage prevention device (=In the above-mentioned 8-pronged foot part of the anode terminal, there is a locking shaft that is elastically layered in the groove of the locking hole of the shield plate and prevents the shield plate from moving. Anode cap X @ leakage prevention 1h device equipped with flAw.