JPS5832377Y2 - Degaussing coil mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a degaussing coil attachment device for attaching to a picture tube a degaussing coil used for demagnetizing a shadow mask or peripheral parts of a color picture tube, for example.

Conventionally, the degaussing coil was installed after the picture tube was installed in the cabinet.

That is, as shown in FIG.
After providing four and two locations respectively, the picture tube 12 is attached to the cabinet 11.

Then, insert the degaussing coil 13 into the degaussing coil holder 14,
Furthermore, by tightening the band clamp 15 at two places, the installation of the degaussing coil 13 is completed.

However, with this installation method, the picture tube is installed in the cabinet before the degaussing coil is installed, so at least a space is required to install the degaussing coil, which makes it difficult to downsize the television receiver set. is inconvenient.

Furthermore, in a set that does not have enough room, the above-mentioned work is difficult and the work efficiency is low, and the number of parts to suppress the degaussing coil is large, which increases the installation cost.

This idea was made to deal with the above-mentioned circumstances.
It is an object of the present invention to provide a degaussing coil mounting device suitable for improving the efficiency of degaussing coil mounting work, reducing mounting costs, and downsizing the set.

Hereinafter, embodiments of this invention will be described in detail with reference to the drawings.

FIG. 2 is a perspective view showing a first embodiment of the invention.

As shown in FIG. 1A, the degaussing coil mounting device 21 has a main body 22 and a degaussing coil holding portion 23 that are integrally formed of, for example, a plate-shaped synthetic resin member.

Here, the main body 22 is curved into a circular arc so as to have an elastic force, and is formed into a substantially C-shape.

Both ends of the main body 22 extend in substantially the same direction, and are bent in the middle of the extension to be substantially perpendicular to the extending direction and on the same side with respect to the main body 22.

The bent and extended portion is further bent at right angles toward the main body 22 to form a substantially U-shaped degaussing coil holding portion 2.
3 is formed.

This figure is a perspective view showing how the degaussing coil 24 is disposed in the degaussing coil holding portion 23 of the degaussing coil mounting device 21 described above.

As shown in the figure, the degaussing coil 24 is arranged in a space 23□ of the degaussing coil holding portion 23 formed by being bent into a U-shape.

In this state, the gap 25 formed between the degaussing coil 24 and the main body 22 is used as an insertion portion.

This insertion portion 25 includes a band attached to the outer periphery of the picture tube face in order to fix the picture tube to a housing such as a cabinet or chassis. Fixed piece 2
7 (see C in the same figure) is inserted.

Note that the degree of curvature of the main body 22 to provide elastic force is smaller than the degree of curvature of the corners of the picture tube.

That is, the degree of curvature of the main body 22 is set such that the radius of curvature thereof is larger than the radius of curvature of the corner portion.

The degaussing coil attaching device of this embodiment is constructed as described above, and the procedure for attaching the degaussing coil will be explained below.

First, as shown in FIG. 2, the degaussing coil 24 is placed in the degaussing coil holding portion 23 of the degaussing coil mounting device 21.

Next, the fixing piece 27 of the picture tube 26 is inserted into the insertion part 25 so that the degaussing coil 24 is positioned on the funnel part 28 side of the picture tube 26, as shown in FIG.

If this operation is performed in the same manner for all the fixing pieces 27 provided at the four corners of the picture tube 26, the installation operation of the degaussing coil 24 is completed.

FIG. 3 is a diagram showing the completed installation of the degaussing coil 24 on the picture tube 26. Since the degaussing coil attachment device 21 is biased by the degaussing coil 24 so that its radius of curvature becomes small, the degaussing coil 24 is biased by the degaussing coil 24. is tensioned by the elastic force of the degaussing coil attachment device 21.

FIG. 4 is a perspective view showing another embodiment of this invention.

The difference from the previous embodiment is that a slit 31 is provided in the main body 22 of the degaussing coil mounting device 21, and the fixing piece 27 of the picture tube (see Fig. 2) can be inserted using this slit 31 as an insertion part. be.

Even with such a configuration, the same effects as in the previous embodiment can be obtained.

This embodiment described above has the following effects.

That is, since the degaussing coil 24 can be attached before attaching the picture tube 26 to a cabinet or the like, the work of attaching the degaussing coil 24 is easy, and the time required for the attachment work can be shortened (to the same degree as the conventional work time). It is possible to downsize the television receiver set.

Furthermore, when the degaussing coil attachment device 21 is installed on the outer periphery of the picture tube, the fixing piece 27 provided on the outer periphery of the picture tube 26 is simply inserted into the insertion portion 25. It is easy to install and does not require any separate mounting hardware.

Furthermore, the degaussing coil 24 is simply inserted into the degaussing coil holding part 23 and is held under tension by the elastic force of the degaussing coil attachment device 21, so there is less floating and the electrical characteristics are excellent.
Even if the tension of the degaussing coil 24 becomes loose for some reason, the degaussing coil 24 will not come off the picture tube 26 because the degaussing coil 24 is held between the degaussing coil holding part 23 and the fixing piece 23.

Furthermore, since the number of attachment devices for the degaussing coil 24 is smaller than in the past, costs can be reduced.

Furthermore, even if there are variations in the dimensions of the degaussing coil 24,
The relative position between the demagnetizing coil 24 and the picture tube 26 hardly changes, and the degaussing coil 24 is always fixed at a position close to the fixed piece 27, so that the picture tube 26 has uniform demagnetizing characteristics.
can be made.

Although the case where the fixing pieces are provided at the four corners of the picture tube's outer periphery has been described in detail above, the installation position of the degaussing coil mounting device of this invention is not limited to the corners; Any position is acceptable as long as the fixing piece is placed.

For example, if the picture tube has a configuration in which the fixing piece is disposed at the middle part of the outer periphery of the picture tube, the degaussing coil attachment device is also arranged at the middle part.

Furthermore, the shapes of the main body and the degaussing coil are not limited to those in the previous embodiments; in short, when they are arranged on the outer periphery of the picture tube, they are arranged by inserting a fixing piece on the outer periphery of the picture tube. In addition, if the degaussing coil can be stretched and held using elastic force, and the degaussing coil is held between the fixing piece and the degaussing coil holding part, so that it does not come off from the picture tube. good.

As described above, the degaussing coil mounting device according to the present invention can be conceived in various other ways without changing the gist of the invention.

According to the invention described in detail above, it is possible to provide a degaussing coil mounting device that can contribute to improving the efficiency of the degaussing coil mounting work and downsizing the set, and can also reduce mounting costs.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing a conventional degaussing coil mounting method, Fig. 2 a, l) is a perspective view illustrating the configuration of a first embodiment of the degaussing coil mounting device of this invention, and Fig. FIG. 3 is an explanatory view showing the degaussing coil installed by the degaussing coil installation device according to the first embodiment, and FIG. FIG. 3 is a perspective view illustrating the configuration of another embodiment of the degaussing coil mounting device of FIG. 21... Degaussing coil mounting device, 22...
・Main body, 23...Demagnetizing coil holding part, 24...
... Demagnetizing coil, 25.31 ... Insertion part,
26... Picture tube, 27... Fixing piece for fixing picture tube, 28... Funnel part of picture tube.

Claims (3)

[Scope of utility model registration request] (1) A belt-shaped main body portion that is close to a fixing piece for fixing the picture tube and is arranged so as to curve around the outer periphery of the picture tube and have elastic force;
Holding parts for the degaussing coil are provided extending from both ends of the main body in a direction perpendicular to the main body, and a fixing piece for fixing the picture tube is inserted between the holding parts on the main body side. and an insertion section, wherein the demagnetizing coil is stretched by the elastic force of the main body and is sandwiched between the holding section and the fixing piece. Device. (2) The demagnetizing coil mounting device according to claim 1, wherein the insertion portion is a gap formed between the demagnetizing coil held by the holding portion and the main body. (3) The degaussing coil mounting device according to claim 1, wherein the insertion portion is a slit provided in the main body.