JPH0528862Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is applicable to cathode ray tubes (hereinafter referred to as
This invention relates to a mounting device for accurately mounting a CRT (CRT) in a predetermined position in a television receiver cabinet without tilting it.

<Prior art> Conventionally, as shown in FIG. 4, a plurality of CRT guide tubes 3',
3'... was provided in order to correctly guide the CRT2 to the specified position in the cabinet and to prevent it from being damaged by dropping or impact.

<Problems to be solved by the invention> However, in the above-mentioned conventional CRT mounting and positioning device, the CRT guide tubes 3', 3'...
Even if CRTs are of the same inch size, the external dimensions may differ slightly depending on the valve manufacturer or CRT manufacturer due to differences in valves, reinforcing band structures, and production methods.
It was protruded to correspond to b.

Therefore, when installing the CRT 2 having the minimum external dimension 2a, the CRT guide tubes 3', 3'...
Since there will be a gap between the
This had the problem of poor work efficiency.

<Means for solving the problems> The present invention solves the above-mentioned conventional problems by protruding the CRT guide tube in accordance with the minimum external dimensions of the CRT and forming a vertical groove at the part where it contacts the CRT. Resolved the point.

<Function> When installing a CRT with a diameter larger than the minimum external dimensions, the CRT guide tube will elastically deform at the part where the vertical groove is formed, so no gap will be formed between it and the end surface of the CRT. You can accurately align the center line of the CRT.

<Example> Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

Fig. 1 is a simplified diagram showing a state in which a CRT is attached to the back of the cabinet. In the figure, reference numeral 1 indicates the cabinet molded from elastic synthetic resin, and reference numeral 2 indicates the cabinet molded from elastic synthetic resin.
CRT (cathode ray tube), 3, 3... shows a CRT guide tube integrally formed in a protruding manner on the cabinet.
In addition, each of the CRT guide tubes 3, 3, .
...is formed.

Fig. 2 is an enlarged explanatory diagram of the main part of Fig. 1. To explain the mounting positioning function of CRTs with different external dimensions in the figure, first, the minimum external dimension 2a is
When installing a CRT in a cabinet,
Since the guide tube 3 is provided in a protruding manner in accordance with the minimum external dimensions of the CRT, its side surface comes into contact with the end surface of the CRT, thereby positioning the CRT with respect to the cabinet without shifting or tilting. In addition, in the case of a CRT having a maximum external dimension of 2b, it has elasticity as shown by the two-dot chain line.
Since the CRT guide tube 3 is elastically deformed at the portion where the vertical groove 3a is provided, the CRT guide tube 3
is positioned relative to the cabinet.

Thereafter, the CRT installation is completed by fixing the CRT to the cabinet using appropriate means.

FIG. 3 is a cross-sectional view taken along line A-A' in FIG.
The end face of the CRT 2 is the vertical groove 3 of the CRT guide tube 3.
At the same time as it comes into contact with part a, the front surface is connected to cabinet 1.
It is positioned and held at a predetermined position by coming into contact with the mask portion 1a.

In this example, the CRT guide tubes were installed at eight locations near the corners of the CRT.
They may be installed at appropriate locations depending on the size, weight, etc. of the CRT, and the location and number of installation locations can be set arbitrarily.

<Effects of the invention> As described above, the cathode ray tube mounting and positioning device of the present invention allows the CRT and CRT to
There is no gap between the guide tube and the guide tube. Therefore, there is no need to align the center line of the CRT with respect to the cabinet to prevent it from tilting or shifting, which provides excellent effects in that the CRT can be held more reliably and the efficiency of assembly work is improved.

[Brief explanation of the drawing]

FIG. 1 is a simplified diagram showing an embodiment of the present invention;
The figure is an enlarged explanatory view of the main part of Figure 2, and Figure 3 is an enlarged explanatory diagram of the main part of Figure 2.
A cross-sectional view taken along the line A-A' in the figure, and FIG. 4 are simplified diagrams showing a conventional example. 1...cabinet, 2...CRT, 3...
CRT guide tube, 3a...vertical groove.

Claims (1)

[Scope of utility model registration request] In the cathode ray tube mounting positioning device for television receivers, which surrounds the cathode ray tube with multiple CRT guide tubes protruding from the back of the cabinet and determines the mounting position of the cathode ray tube, this device is integrated with the cabinet using a flexible synthetic resin material. The formed CRT guide tube,
A vertical groove is provided in a protruding position corresponding to the minimum external dimensions of the cathode ray tube to be mounted, and a vertical groove is formed on the surface of the CRT guide tube that faces the cathode ray tube in a direction perpendicular to the periphery of the cathode ray tube. A cathode ray tube mounting positioning device characterized by: