JPH07320655A - Neck assembly and winding method thereof - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a neck assembly capable of improving the production efficiency by reducing the number of steps for winding a conductive wire. [Structure] Grooves 7A and 7B are provided in the boss 3 and the hub 6 of the ring-shaped neck assembly 1. These grooves 7A, 7
B is formed so as to fit with a key provided on the shaft of the winding machine. The neck assembly is fixed by fitting these grooves 7A, 7B into the key of the shaft of the winding machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neck assembly attached to a neck portion of a cathode ray tube such as a color picture tube or a color display device and a winding method thereof.

[0002]

2. Description of the Related Art Generally, in a cathode ray tube, a neck assembly is attached to a neck portion of a tube body in order to correct various orbits of an electron beam. Figure 6
Shows an example of a conventional neck assembly for performing convergence correction in the vertical direction.

As shown in the figure, in this neck assembly 30, a conductor 32 is wound around a reel-shaped portion of a neck assembly main body 31 to form a coil. Then, an attachment portion 33 for attaching the neck assembly 30 to the neck portion of the tubular body is formed integrally with the coil portion.
The mounting portion 33 is composed of, for example, eight mounting pieces formed at predetermined intervals, and is configured to be mounted on the neck portion of the cathode ray tube by tightening a metal band 34 with, for example, a screw 35. To be done.

On the other hand, in order to wind the conducting wire 32 around the neck assembly body 31, for example, as shown in FIGS. 7A to 7C, the neck assembly body 31 is attached to the shaft 37 of the winding machine 36 and the band 34 is tightened. This is done by fixing and rotating this shaft 37.

[0005]

However, in such a conventional example, the band 3 is rotated by turning the screw 35.
Since 4 was tightened, the number of man-hours for that was taken, and the production efficiency of the neck assembly 30 was deteriorated.

The present invention has been made in consideration of the above problems of the conventional example, and provides a neck assembly and a winding method thereof, which can reduce the number of steps for winding a conductive wire and improve the production efficiency. Especially.

[0007]

The neck assembly of the present invention fits with the projections 21A, 21B provided on the rotating means 12 for winding the conducting wire 5 on the neck assembly body 2, as shown in FIGS. 1 to 5, for example. It is characterized in that the recesses 7A and 7B are provided so as to match with each other.

In this case, it is possible to provide recesses 8A to 8D which engage with the claws 27 of the holder 22 which holds the neck portion 23 of the cathode ray tube.

Further, in the method of winding the neck assembly of the present invention, the rotation means 12 for winding the conducting wire 5 on the neck assembly body 2 is provided with the projections 21A and 21B, and the neck assembly body 2 has the above-mentioned projections 21A and 21B. 21B
Providing recesses 7A and 7B that fit into each other, these projections 21
It is characterized in that the neck assembly main body 2 is rotated by fitting the A and 21B and the concave portions 7A and 7B together.

[0010]

In the present invention, the projections 21A provided on the rotating means 12 for winding the conducting wire 5 around the neck assembly body 2,
Since the recesses 7A and 7B that fit with 21B are provided,
The neck assembly main body 2 can be rotated by the rotation means 12 only by fitting the projections 21A, 21B and the recesses 7A, 7B.
It is possible to attach the band to the device, and the step of tightening the band as in the conventional example can be omitted. Further, by providing the recesses 8A to 8D that engage with the claws 27 of the holder 22 that holds the neck portion 23 of the cathode ray tube, the neck assembly 1 can be mounted on the neck portion 23 of the cathode ray tube without tightening the band as in the conventional example. Can be attached to.

[0011]

Embodiments of the present invention will be described below with reference to FIGS.

1A and 1B show an embodiment of a neck assembly according to the present invention. As shown in the figure, the neck assembly 1 of the present embodiment has a reel-shaped neck assembly body 2, and the neck assembly body 2 has a pair of flanges 4 </ b> A and 4 </ b> B sandwiching a hub 3.
The conducting wire 5 is wound 2000 to 3000 times around the outer surface of the hub 3 by a method described later. Further, a reinforcing boss 6 is formed on one flange 4A side.

As shown in FIGS. 1A and 1B, in this embodiment, two grooves 7A and 7B as recesses are formed on the inner surfaces of the hub 3 and the boss 6. In the case of the present embodiment, these grooves 7A and 7B extend in the direction orthogonal to the circumferential direction and are formed at positions facing each other.

Further, as shown in FIG. 1B, recesses 8A to 8D for holding the neck assembly 1 on the neck portion of the cathode ray tube are formed on the outer surface of the one flange 4B. In this embodiment, four rectangular recesses 8A to 8D are formed at equal intervals. In this case, the two recesses 8A and 8B are formed at positions corresponding to the above-mentioned grooves 7A and 7B.

Further, a protrusion 9 for holding a printed circuit board (not shown) for connection is formed on the outer side of the flange 4B.

FIG. 2 shows an embodiment of a winding machine to which the present invention is applied. As shown in FIG.
Includes a winding machine main body 11, and a drive motor (not shown) and the like are arranged in the winding machine main body 11. Then, on the front side of the winding machine main body 11, a shaft 12 as a rotating means rotated by the drive motor is attached.

A reel 13 around which the conductor wire 5 is wound is arranged on the winding machine body 12, and the conductor wire 5 can be drawn out from the reel 13. Further, a column 13 is erected on the winding machine body 11, and a base 15 is attached via a fixing member 14. A roller 16 for changing the direction of the conducting wire 5 is rotatably attached to the base 15. Further, a tension arm 17 for giving a predetermined tension to the conducting wire 5 is attached to the base 15 in an upward direction.
Roller 18 for directing the direction of conductor 5 downward at the tip of 7
Is rotatably attached.

Then, as shown in FIG. 2, the conducting wire 5 drawn from the reel 13 is stretched over the rollers 16 and 18, pulled toward the shaft 12 and wound around the neck assembly main body 2 in the direction described later. .

Next, the shaft 12 of this embodiment will be described. As shown in FIGS. 3A and 3B, the shaft 12 according to the present embodiment has a disc-shaped base portion 19 and a neck assembly body 2.
A shaft portion 20 having an outer diameter slightly smaller than the inner diameter of is provided. The two keys 21A, 2 as protrusions on the side surface of the shaft portion 20 and near the base portion 19 are provided.
1B is provided. These keys 21A, 21B are formed in a shape that fits into the grooves 7A, 7B of the neck assembly 1 and at positions corresponding to the grooves 7A, 7B of the neck assembly 1.

In order to wind the conductor wire 5 around the neck assembly body 2, first, the grooves 7A, 7 of the neck assembly body 2 are wound.
Align B with the keys 21A and 21B of the shaft 12 and fit the neck assembly body 2 into the shaft 12. Then, a part of the conductive wire 5 drawn out from the reel 13 is wound around the neck assembly body 2 and fixed to the neck assembly body 2.
In that state, the shaft 12 is rotated by a predetermined number.

As described above, according to the present embodiment, the grooves 7A and 7B that fit into the keys 21A and 21B provided on the shaft 12 of the winding machine 10 are provided in the neck assembly main body 2, and these are fitted together. Since the neck assembly body 2 is attached to the shaft 12 of the winding machine 10, it is possible to omit the step of tightening the band as in the conventional example and improve the production efficiency of the neck assembly 1.

The present invention is not limited to the above-mentioned embodiment, and various modifications can be made. For example, the position, number, shape, etc. of the grooves provided in the neck assembly body may be arbitrary. In this case, needless to say, the position, number, shape, etc. of the shaft of the winding machine may be changed according to the neck assembly.

In the above embodiment, the neck assembly main body is fixed to the shaft by the combination of the groove and the key, but the present invention is not limited to this, and the neck assembly main body is fixed by the combination of the protrusion and the recess. It may be fixed to.

FIG. 4 shows a holder 22 for attaching the neck assembly 1 according to this embodiment to the neck portion 23 of the cathode ray tube, and FIG. 5 shows a method of attaching the neck assembly 1 to the neck portion 23 of the cathode ray tube. Is shown. Figure 5
In this embodiment, the neck assembly 1 is attached to the neck portion 23 via the holder 22 that holds the neck portion 23 of the cathode ray tube, as shown in FIG. This holder 2
2 is made of an elastic member such as resin,
Four holding portions 26 are provided around the hole 25 provided on the substrate 24, and a claw portion 27 is formed at the tip of each holding portion 26. This claw portion 27 is formed outward from each holding portion 26, and is provided on one flange 4B of the neck assembly body 2.
It is formed in a shape corresponding to the concave portions 8A to 8D formed in.

When the neck assembly 1 is attached to the neck portion 23, first, the claw portions 27 of the holder 22 and the recesses 8A to 8D of the neck assembly body 2 are fitted together, and then the holding portion 26 of the holder 22 and the cathode ray. Align with the neck 23 of the tube.

Further, according to the present embodiment having such a configuration, the step of tightening the band as in the conventional example can be omitted, and the production efficiency of the cathode ray tube can be improved.

[0027]

As described above, according to the present invention, the neck assembly main body is provided with the concave portion that fits with the projection provided on the rotating means for winding the conducting wire, and these projections and the concave portions are fitted to each other. Therefore, the step of tightening the band as in the conventional example can be omitted, and the production efficiency of the neck assembly can be improved. Also,
By providing the concave portion that engages with the claw of the holder that holds the neck portion of the cathode ray tube, the step of tightening the band as in the conventional example can be omitted and the production efficiency of the cathode ray tube can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a neck assembly according to the present invention.

FIG. 2 is an overall configuration diagram of a winding machine to which the present invention is applied.

FIG. 3 is a side view of a main part of the winding machine of FIG. B is a front view of a main part of the winding machine in FIG. 2.

FIG. 4 is a perspective view of a holder of this embodiment.

FIG. 5 is a partial cross-sectional view showing a method of attaching the neck assembly of the present embodiment to the neck portion of the cathode ray tube.

FIG. 6 is a perspective view of a conventional neck assembly.

FIG. 7 is a side view of a main part of a conventional winding machine. B is a front view of a main part of a conventional winding machine. C is an explanatory view showing a conventional method of fixing a neck assembly.

[Explanation of reference numerals] 1 neck assembly 2 neck assembly body 4A, 4B flange 5 winding 7A, 7B groove (recess) 8A, 8B, 8C, 8D recess 10 winding machine 12 shaft 21A, 21B key (protrusion)

Claims (3)

[Claims] 1. A neck assembly, wherein a neck assembly body is provided with a concave portion that fits with a protrusion provided on a rotating means for winding a conductive wire. 2. A recessed portion that engages with a claw of a holder that holds the neck portion of the cathode ray tube is provided.
The described neck assembly. 3. The neck assembly main body is provided with a protrusion on a rotating means for winding a conductive wire, and the neck assembly main body is provided with a concave portion that fits with the protrusion, and the neck assembly main body is rotated by fitting the protrusion and the concave portion together. A method for winding a neck assembly, comprising: