JPS5933157Y2 - Deflection coil holding wedge - Google Patents

Description

[Detailed description of the invention] The present invention relates to a wedge for holding a deflection coil, and when the wedge is inserted into the gap between the front end of the deflection coil of a television receiver and the funnel surface of a cathode ray tube to hold the deflection coil, the deflection coil is moved. It is an object of the present invention to provide a wedge for holding a deflection coil, which can prevent this, facilitate the mounting and fixing work, and reduce the cost of materials used.

FIG. 1 shows a state in which a deflection coil is attached to the funnel surface of a cathode ray tube, and FIG. 2 shows a side view of an example of a conventional wedge for holding a deflection coil.

In FIG. 1, reference numeral 1 denotes a color cathode ray tube, on which a deflection coil 2 is attached, and a tightening band 3 is attached to this deflection coil 2.

The rear end portion of the deflection coil 2 is positioned on the cathode ray tube neck portion 4 by tightening the tightening band 3 mentioned above.

Thereafter, the deflection coil 2 is oscillated vertically and horizontally with respect to the cathode ray tube axis 5 to best match the convergence characteristics on the cathode ray tube screen, and in this position, the deflection coil 2 is oscillated in the gap between the front end of the deflection coil and the funnel curved surface 7. The wedge 6 is inserted from three directions and held fixed.

Thereby, deterioration of convergence characteristics and purity characteristics due to movement of the deflection coil 2 can be prevented.

However, in the conventional deflection coil holding wedge, as shown in FIG. A pressure-sensitive adhesive or adhesive tape, etc. that instantly adheres or adheres to the lower surface 11 of the tongue piece 10 provided at the end is interposed, and after the convergence characteristics are optimally matched by the above method, the gap between the funnel part and the deflection coil is Before the deflection coil 2 is inserted into the funnel and the deflection coil 2 is completely fixed, the adhesive or the like may come into contact with the funnel curved surface 7 and become tightly fixed.

For this reason, the deflection coil 2 that is unstably fixed in this way
After the screen is adjusted, vibrations and shocks that the television receiver receives often cause the CRT funnel to move or rotate from the best mounting position, resulting in deterioration of convergence characteristics and damage to the television receiver. It had seriously degraded the dignity of the people.

In addition, instead of the above-mentioned instant adhesive or sticky material, R
The deflection coil holding wedge is made by applying an adhesive such as TV silicone, which hardens over time, to the lower surface 11 of the tongue piece as an inclusion, so that when the adhesive is not cured, the wedge is attached to the deflection coil above the funnel curved surface 7. There was a drawback that the deflection coil/I/2 moved and rotated in the same manner as described above.

Furthermore, a wedge in which pressure-sensitive cloth tape or the like is pasted from the upper surface 12 of the tongue piece 10 to the funnel surface for the purpose of preventing the wedge from retreating can prevent the above-mentioned retreat, but the material cost is high.C
It had drawbacks such as extremely poor workability.

The present invention eliminates the above-mentioned drawbacks, and one embodiment thereof will be described with reference to three diagrams.

FIG. 3 shows a side view of one embodiment of the deflection coil holding wedge according to the present invention.

In this figure, the same parts as in FIG. 2 are given the same reference numerals.

In this embodiment, a pressure-sensitive adhesive tape or the like is attached to the lower surface of a tongue piece provided at the rear of the model body, and the tongue piece is angled so as to be released from the funnel surface of the cathode ray tube.

That is, in FIG. 3, a tongue piece 13 is integrally formed at the rear end of the model body 8 and is inclined upwardly by a desired appropriate angle θ with respect to the lower surface 9 thereof.

A pressure-sensitive double-sided adhesive tape 14 is attached to the lower surface 14 of the tongue piece 13.

A notch 16 is provided in the joint 15 between the model body 8 and the tongue piece 13 so that the tongue piece 13 can be pushed down and the angle θ can be set to 00.

Therefore, the deflection coil 2 and the funnel curved surface 7 of the cathode ray tube
By inserting the mock body 8 into the gap and applying pressure downward from the upper surface 17 of the tongue piece 13 after fixing the deflection coil 2, the adhesive surface of the double-sided adhesive tape 14 can be brought into close contact with the funnel curved surface, which is different from the conventional method. This prevents the deflection coil 2 from coming into close contact with the curved surface of the funnel before it is fixed.
The model body 8 can be held extremely stably on the funnel curved surface 7.

Therefore, the wedge according to the present invention can extremely stably fix and hold the deflection coil 2 at the best mounting position in the funnel portion of the cathode ray tube.

As described above, the deflection coil holding wedge according to the present invention is a means for holding a deflection coil that makes predetermined adjustments in vertical and horizontal directions with respect to the cathode ray tube axis to achieve desired convergence characteristics on the cathode ray tube surface, and includes: The deflection coil is inserted into the gap between the front end of the deflection coil attached to the cathode ray tube of the television receiver and the funnel surface of the cathode ray tube, and fixes the deflection coil at a predetermined position on the funnel surface from the inside. A model body is formed to have a large diameter, and a model body is integrally formed at a rear end of the model body at a predetermined and appropriate angle above the lower surface of the model body that contacts the funnel surface so that the model body does not move. The tongue piece is provided on the funnel surface and is adhered to the funnel surface by applying pressure from above after the insertion of the model body is completed, using a pressure-sensitive adhesive or adhesive. The model body can be completely inserted into the gap between the front end of the deflection coil and the funnel surface without any adhesive or adhesive material coming into contact with the funnel surface, and therefore the deflection coil can be securely fixed. A tongue piece is provided integrally with the rear end of the main body at an appropriate angle, so after confirming the fixation of the deflection coil, pressure is applied from the top of the tongue piece to funnel the adhesive surface of the adhesive material, etc. Since it can be fixed closely to the surface, the model body will not move, and since the bottom surface of the model body and the tongue piece are both in contact with the funnel surface, it can be held against the funnel surface. The contact area as a wedge is large, which allows the deflection coil to be held extremely firmly, and the work of holding and attaching the deflection coil to be made much easier than before, thus improving work efficiency and reducing material costs. Furthermore, since the tongue piece is provided upward at a predetermined angle, the anti-insertion adhesive does not come into contact with the funnel surface in the gap, making it easy to work with.

[Brief explanation of the drawing]

Fig. 1 is a view showing the deflection coil attached to the funnel surface of the cathode ray tube, Fig. 2 is a side view of an example of a conventional deflection coil holding wedge, and Fig. 3 is a view of the deflection coil holding wedge of the present invention. FIG. 2 is a side view of one embodiment. 1... Color cathode ray tube, 2... Deflection coil, 6... Wedge, 7... Funnel curved surface, 8... Model body, 10 .13...
Tongue piece, 14... Pressure-sensitive double-sided adhesive tape, 15.
...joint, 16...notch.

Claims (1)

[Scope of utility model registration request] A holding means for a deflection coil that makes predetermined adjustments vertically and horizontally with respect to the cathode ray tube axis to achieve desired convergence characteristics on the cathode ray tube surface, the front end of the deflection coil attached to the cathode ray tube of a television receiver. and a mock body formed such that its diameter increases from its insertion tip toward its rear end, and fixes said deflection coil inserted in a gap between said deflection coil and said funnel surface from the inside thereof at a predetermined position on said funnel surface. , provided integrally with the rear end of the mock body at a desired and appropriate angle above the lower surface of the mock body that contacts the funnel surface so that the mock body does not move, and from above after the insertion of the mock body is completed. A wedge for holding a deflection coil comprising a tongue piece that is adhered or adhered to the funnel surface by applying pressure through a pressure-sensitive adhesive or adhesive.