JPH065226A - Deflection yoke - Google Patents

Abstract

PURPOSE:To prevent the deformation of a deflection yoke when fixed to a CRT. CONSTITUTION:Plural holes are provided in the slope of an insulation frame 5 for a horizontally deflection coil. A protrusion unit is a structure of providing a protrusion 10 on a base 9 formed of rubber material, that is the protrusion 10 is inserted into the plural holes 8 until the end face of the protrusion 10 contacts a CRT 12. In this way, the protrusion 10 can be fixed to the neck of the CRT by fastening with a band in the state that it is closely attached to the slope of the CRT, thus to prevent the deformation of a deflecting yoke.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke incorporated in a cathode ray tube used for a television receiver or the like.

[0002]

2. Description of the Related Art A conventional deflection yoke will be described below with reference to FIG. In the figure, 1 is a cathode ray tube, 2 is a deflection yoke, 3 is a band on the electron gun side for fixing the deflection yoke 2 to the cathode ray tube 1, and 4 is a wedge sandwiched between the cathode ray tube 1 and the deflection yoke 2.

The deflection yoke 2 is attached to the cathode ray tube 1 by
Usually, the deflection yoke 2 is inserted into the cathode ray tube 1 and the band 3
Then squeeze it on the neck of CRT 1. Then, the tilt, the landing or the like is adjusted, the wedge 4 is inserted between the inclined surface of the cathode ray tube 1 and the deflection yoke 2, and the deflection yoke 2 is completely fixed by the insertion of the wedge 4. Deflection yoke 2
It was common to adjust the convergence after fixing the.

[0004]

According to the above-mentioned conventional structure, when the wedge 4 is inserted and fixed between the inclined surface of the cathode ray tube 1 and the deflection yoke 2, the deflection yoke 2 is deformed by the wedge 4. I had a problem.

An object of the present invention is to prevent deformation when fixing to a cathode ray tube.

[0006]

In order to achieve this object, the present invention provides a plurality of holes on the inclined surface of a horizontal deflection coil insulating frame, a protrusion on a rubber base, and the plurality of holes. The projection was inserted inwardly, and the end surface of the projection hits the cathode ray tube.

[0007]

With this configuration, the projection attached to the slope of the insulation frame of the deflection yoke can be closely attached to the slope of the cathode ray tube, and the neck of the cathode ray tube can be tightened and fixed by the band on the electron gun side of the deflection yoke. Does not happen.

[0008]

1 is a front view of a horizontal deflection coil and FIG. 2 is a side view of FIG.
A description will be given with reference to the drawings. In FIG. 1, 5 is an insulating frame of the horizontal deflection coil, 6 is a slit of the winding of the insulating frame 5, and 7 is a small-diameter portion of the insulating frame 5 directed toward the electron gun side. Reference numeral 8 is a hole provided on the slope of the insulating frame 5.

FIG. 3 shows a front view of the projection unit mounted on the insulating frame 5. FIG. 4 is a side view of the protrusion unit shown in FIG. In the figure, 9 is a base made of rubber or the like of a molded product, 10 is a protrusion provided on the base 9,
Reference numeral 11 is a brim formed on the protrusion 10.

FIG. 5 shows a front view of a deflection yoke in which a protrusion 10 is attached to the hole 8. In the figure, the insulating frame 5 shown in FIG.
The plurality of protrusions 10 provided on the base 9 are inserted into the plurality of holes 8 formed on the inclined surface of the base 9 from the outer side to the inner side and mounted. Since the protrusion 10 that is inserted and attached has a collar 11,
It does not come off during normal handling.

FIG. 6 is a sectional view showing a deflection yoke having the protrusion 10 mounted on a cathode ray tube. The deflection yoke fitted with the protrusion 10 is inserted into the cathode ray tube 12 to
The protrusion 10 protruding from the inner slope of the insulating frame 5 on the slope 13 of the
Of the cathode ray tube 12 is closely attached, and the neck portion of the cathode ray tube 12 is squeezed by the band 14 on the electron gun side 7 to fix the deflection yoke.

[0012]

As described above, according to the present invention, a deflection yoke having a plurality of rubber-like protrusions provided on the inner slope of a horizontal deflection coil insulating frame is inserted into a cathode ray tube, and a plurality of rubbers of the deflection yoke are attached to the slope of the cathode ray tube. It is possible to fix the deflection yoke to the Braun tube in a stable manner by bringing the tip end surfaces of the quality projections into close contact with each other and tightening the neck portion of the Braun tube with the band of the deflection yoke.

[Brief description of drawings]

FIG. 1 is a front view showing a horizontal deflection coil according to an embodiment of the present invention.

FIG. 2 is a side view showing a horizontal deflection coil in the embodiment.

FIG. 3 is an external view showing a protrusion unit in the embodiment.

FIG. 4 is a side view showing a protrusion unit in the embodiment.

FIG. 5 is a front view showing a deflection yoke in the embodiment.

FIG. 6 is a diagram showing how a deflection yoke in the embodiment is attached to a cathode ray tube.

FIG. 7 is a diagram showing how a conventional deflection yoke is attached to a cathode ray tube.

[Explanation of symbols]

 5 Insulating Frame 6 Slit 7 Electron Gun Side 8 Hole 9 Base 10 Protrusion 11 Collar 12 CRT 13 Slope 14 Band

Claims (1)

[Claims] 1. A horizontal deflection coil insulating frame having a plurality of holes formed on an inclined surface thereof, a rubber base having projections, and the projections being inserted inward into the plurality of holes. Characteristic deflection yoke.