JPH0723314A - Bracket for casing of cathode ray tube - Google Patents

Abstract

PURPOSE:To reduce a space between a display face frame and a casing when a cathode ray tube(CRT) is stored in the casing by extending metalic fixtures for the CRT almost parallel to the inerwall face of the cabine and fixing the CRT to the inerwall face of the casing on the extended parts. CONSTITUTION:A reinforcing band 4 is wound around a joint part between a CRT panel 1 and a fannel 2 and lugs 5 are welded to the face of the band 4 on the four corners of the panel 1. Respective lugs 5 are fixtures for the casing (frame body of a TV set). Holes are formed on respective extended parts extended from respective welding positions to the neck 3 side. Four sides being the outer frame of the panel 1 are stored so as to almost abutted upon the inerwall side of the casing 8 and fixed to the casing 8 through gap parts generated between the panel 1 and the casing 8 on the four corners. Brackets 9 having extended parts extended in parallel with the inerwall face are fitted to the casing 8 side and superposed to the extended parts of the lugs 5 fixed to the panel 1 and both of the extended parts on the superposed parts are mutually clamped by bolts 6 and nuts 7. Each bolt 6 is clamped through each hole 8 perforated on the casing 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube, and more particularly to a fitting for a casing thereof.

[0002]

2. Description of the Related Art A cathode-ray tube is equipped with a mounting member around an envelope (referred to as a display frame, if necessary) that is bent from the display surface toward the electron gun.

[0003] This mounting bracket is a CRT housing (TV
It serves as a fixing means for the housing when it is housed in a set frame).

In the past, this mounting member has been constructed so as to extend in a direction parallel to the surface including the display surface of the cathode ray tube and outward from the display surface.

On the other hand, a metal fitting to be connected to the mounting metal fitting is also provided on the housing side, and this metal fitting is also configured so as to extend to the side where the cathode ray tube is disposed on the inner wall surface of the housing.

Then, the fittings on the cathode ray tube and the fittings on the housing are fastened with, for example, bolts and nuts in a state where the extending portions of the fittings are overlapped with each other.
The cathode ray tube is fixed to the housing.

[0007]

However, in the cathode ray tube configured as described above, a large space (a space viewed from the display surface side) occupied by the mounting bracket is taken between the display frame and the housing. The problem came to be pointed out.

As described above, both the cathode-ray tube side fitting and the housing fitting are extended to the space (the space viewed from the display surface side) side, and at each of the extending portions. This is because, for example, bolts and nuts are used for fastening.

This is not preferable in view of the tendency to make the TV set compact, and improvement thereof has been demanded.

Therefore, the present invention has been made under such circumstances, and the object of the present invention is to provide a space between the display surface frame and the housing when housed in the housing. An object is to provide a cathode ray tube whose space can be made extremely small.

[0011]

In order to achieve such an object, the present invention is basically a cathode ray tube housed in a housing and bent from the display surface to the electron gun side. In a cathode ray tube comprising a mounting bracket fixed to the inner wall surface of the housing around the envelope, the mounting bracket extends so as to be substantially parallel to the inner wall surface of the housing,
The extension portion is fixed to the inner wall surface of the housing.

[0012]

The cathode ray tube thus constructed extends so that its mounting bracket is substantially parallel to the inner wall surface of the housing, and is attached to the inner wall surface of the housing at this extending portion. There is.

For this reason, the mounting member does not extend outward with respect to the display surface in a plane parallel to the surface including the display surface as in the conventional case, but rather in the axial direction of the CRT (electron gun). It will be provided so as to extend to the (axial direction) side.

Therefore, by fixing the mounting portion to the inner wall surface of the housing at the extending portion,
The space occupied by the fitting between the display surface of the cathode ray tube and the housing (the space viewed from the display surface side) can be made much smaller than before.

Therefore, the space between the display surface frame and the housing when housed in the housing can be made extremely small.

[0016]

1 is an overall perspective view showing an embodiment of a cathode ray tube according to the present invention.

In FIG. 1, a panel 1 constituting a display surface
There is. Although not shown, there is a phosphor formed for each pixel on the back surface of the panel 1, and these phosphors emit light by electron beam irradiation from electron guns arranged apart from each other. There is.

The periphery of the panel 1 is bent toward the electron gun side and extends to form a smooth arc, so-called funnel 2
Is configured.

Further, the funnel 2 is extended as it is to form a neck containing the electron gun.

The panel 1, funnel 2 and neck 3 constitute an envelope made of glass.
The panel 1 and the funnel 2 are formed separately from each other due to manufacturing reasons, and then joined together.

A reinforcing band 4 is wound around the joint between the panel 1 and the funnel 2, and lugs 5 are welded to the surfaces of the reinforcing band 4 at the four corners of the panel 1, respectively.

Each of these lugs 5 is a casing (TV
It serves as a mounting bracket for the frame body of the set, and extends from the welding portion of the reinforcing band 4 to the neck 3 side as it is, and a hole is formed in the extending portion.

FIG. 2 is a front view (view from the display surface) showing a state in which the cathode ray tube having such a configuration is housed in the housing 8.

In FIG. 1, four sides, which are the outer frame of the panel 1, are housed by being brought into close contact with the inner wall surface of the housing 8, and the housing 8 is provided with gaps formed between the housing 8 and the four corners. Has been installed.

FIG. 3 is a view showing a cross section taken along line AA of FIG.

A metal fitting 9 having an extending portion extending substantially parallel to the inner wall surface of the housing 8 is attached, and the extending portion of the metal fitting 9 is attached to the cathode ray tube by the mounting metal fitting 5 described above. And the bolt 6 and the nut 7 are fastened to each other at the overlapping portion.

In the figure, the bolt 6 is tightened through a hole 8A provided in the housing 8.

The cathode ray tube thus constructed extends so that the lug 5, which is a fitting for the cathode ray tube, is substantially parallel to the inner wall surface of the housing 8, and at this extending portion, the inner wall surface of the housing 8 is located. It can be attached to.

For this reason, the lug 5 does not extend outward with respect to the display surface in a plane parallel to the surface including the display surface as in the conventional case, but rather in the axial direction of the CRT (electron gun). It will be provided so as to extend to the (axial direction) side.

Here, FIG. 6 is a view showing a conventional mounting structure corresponding to FIG.

Therefore, by fixing the mounting portion to the inner wall surface of the housing at the extending portion,
The space occupied by the fitting between the display surface of the cathode ray tube and the housing (the space viewed from the display surface side) can be made much smaller than before.

That is, in this embodiment, the width d shown in FIG. 6 can be reduced to the width D as shown in FIG.

From this, the space between the display surface frame and the housing when housed in the housing can be made extremely small.

In the above-described embodiment, the metal fitting 6 is provided on the housing 8 side, but it goes without saying that it is not limited to this. As shown in FIG. 4, the mounting fitting 5 on the prawn pipe side may be directly fastened to the housing 8 with bolts 6 and nuts 7.

Further, as shown in FIG. 5, the mounting member 5 is not welded to the reinforcing band 4, but the reinforcing band 4 is not welded.
Needless to say, it may be integrally formed in the.

[0036]

As is apparent from the above description,
According to the cathode ray tube of the present invention, the space between the display surface frame and the housing when housed in the housing can be made extremely small.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a cathode ray tube according to the present invention.

FIG. 2 is a front view of the cathode ray tube according to the present invention when it is housed and attached in a housing.

FIG. 3 is a diagram showing a cross section taken along line AA of FIG.

FIG. 4 is a cross-sectional view showing another embodiment of the structure for attaching the cathode ray tube to the housing according to the present invention.

FIG. 5 is a cross-sectional view showing another embodiment of the structure for attaching the cathode ray tube to the housing according to the present invention.

FIG. 6 is a cross-sectional view showing a conventional structure for attaching a cathode ray tube to a housing.

[Explanation of symbols]

 1 panel 2 funnel 3 neck 4 reinforcing band 5 lug (mounting bracket)

Claims (1)

[Claims] 1. A CRT housed in a housing, comprising:
In a cathode ray tube comprising a mounting bracket fixed to an inner wall surface of the housing around an envelope bent from the display surface toward the electron gun, the mounting bracket is substantially parallel to the inner wall surface of the housing. And a cathode ray tube fixed to the inner wall surface of the casing at the extending portion.