JPS6028040Y2 - Deflection component fixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing device for fixing deflection components such as a deflection yoke and a correction magnet device to a cathode ray tube neck.

As is well known, a deflection component such as a deflection yoke is fixed to the cathode ray tube neck by some fastening means.

In general, a bobbin or holter molded from plastic material is used, and a clamping part that freely reduces in diameter is formed on these parts, and a clamping means is attached to this clamping part to fix the deflection component to the cathode ray tube neck. be.

As shown in Fig. 1, the tightening means is a long and narrow circular ring part 1 made of metal such as phosphor bronze or stainless steel. The screw 4 that passes through the parallel parts 2 and 3 is used to tighten the cathode ray tube neck by shortening the distance between the parallel parts 2 and 3, or as shown in Figure 2, a rod-shaped spring is wound twice in a spiral shape. There is one that has the shape of an annular portion 5, with both ends standing up to form ear portions 6 and 7.

However, the former tightening means has the disadvantage that it takes a relatively long time to tighten or loosen the screw 4, and the latter tightening means applies force to bring both ears 6 and 7 closer together. Even if an attempt was made to widen the inner diameter of the annular portion 5, the inner diameter did not change much because the annular portion 5 had a double structure, resulting in poor workability in attaching the deflection components.

The present invention solves the above-mentioned drawbacks and provides a tightening device for fixing a deflection component to a cathode ray tube neck in one motion.

Embodiments of the present invention will be described in detail below with reference to FIGS. 3 to 5.

FIG. 3 shows a case where a deflection yoke is fixed to a cathode ray tube. A horizontal deflection coil and a vertical deflection coil are fixed to the coil bobbin 8. Also, at the rear of the coil bobbin 8, there are a plurality of coils arranged along the tube wall in the circumferential direction of the cathode ray tube neck 12. The tightening portion 10 is formed by forming a tongue piece.
A tightening means 11 is attached to this tightening portion 10.

Then, by reducing the diameter of the tightening means 11, the tightening portion 10
is crimped onto the neck 12 to fix the deflection yoke to the cathode ray tube.

FIG. 4 shows an example of fixing a correction magnet device to a cathode ray tube, in which a plurality of annular magnets 14 are rotatably mounted and supported on a cylindrical holder 13, and one open end of the holder 13 has a plurality of annular magnets 14 arranged in a circular direction. The tightening portion 15 is provided with a tightening portion 15 divided into two pieces.
The correction magnet device is fixed to the cathode ray tube by tightening with the tightening means 16.

As mentioned above, in order to fix the deflection component in the proper position of the cathode ray tube, the tightening means needs to be simple and easy to work with.

FIG. 5 shows a tightening means 27 of the present invention for fixing a deflection component to a cathode ray tube, in which a circular ring part 17 is formed of a plate-shaped spring member, and one end of the ring part 17 has a notch approximately 1/3 of the width of the plate. 18 in the circumferential direction from its end and branched into two long pieces 19.2
0.

The tip portions of the long pieces 19.20 have a pair of operating portions 21.22 each bent radially outward.

Further, the other end of the annular portion 17 is formed into an elongated shape by cutting off about one third of the plate width from both sides in the width direction, and the same as the long piece portion 19.20 is formed in the above-mentioned notch 18. It has a long piece part 23 extending along an arc, and a single operating part 24 formed by bending the distal end part radially outward.

This configuration has the advantage that when the inner thickness of the annular portion 17 is increased, the annular portion 17 is not twisted.

The long pieces 19.20 and 23 are not in contact with each other on their sides, and there is an appropriate distance between the operating parts 21.22 and 24 to allow for manual operation. For example, if the inner diameter of the annular portion 17 is approximately 20 mm, the operating portion 21.2
The ends of numbers 2 and 24 are approximately 2.3 cm apart.

Further, the long piece parts 19 and 20 and the annular part 17 near the base of the long piece part 23 are provided with 0 and 1 through hole 25 and 26, respectively.

The through holes 25 and 26 function to make the tightening force on the annular portion 17 uniform.

When fixing the deflection component to the cathode ray tube neck, the tightening means 27 is attached to the tightening portion 10.15 of the deflection component while enlarging the diameter of the annular portion 17, and the tightening means 27 itself is The diameter of the tightening portion 10.15 is tightened against the neck 12 by the elasticity of the tightening portion 10.15.

In order to enlarge the diameter of the annular portion 17 of the tightening means 27, apply force in the direction of arrows 28 and 29 by applying a finger or a jig to the operating portions 20.21 and 24 to increase the distance between them. Just shorten it.

FIG. 6 shows another embodiment of the present invention, in which the annular portion 30
Long piece parts 31 and 32 are provided at both ends of the board by alternately cutting out approximately one-half of the board width from opposite sides in the width direction.

The long pieces have a circumference along the arc of the annular portion 30, and are positioned so as to fill the cutout portions without coming into contact with each other.

Further, the tip portions of the long pieces 31 and 32 are bent in the radial direction to form operating portions 33 and 34, which are operated in the same manner as shown in FIG. 5 when tightening the waist.

This embodiment has the advantage that the plate width of the annular portion 30 can be formed narrow, and therefore the width of the clamping portion of the deflection component can be configured narrow.

Since the present invention has the above-mentioned configuration, the tightening work can be done in one motion, so the work time can be shortened, and since the tightening part of the coil bobbin etc. is tightened with a wide annular part, the deflection parts can be attached to the cathode ray tube. It has the advantage of being securely fixed.

Further, since the annular portion of the tightening means is provided with a through hole near the long piece, there is an advantage that the tightening force of the annular portion can be made uniform in the circumferential direction.

Furthermore, since the diameter of the annular portion of the tightening means can be greatly enlarged during the tightening operation, there is an advantage that the deflection component can be inserted smoothly into the cathode ray tube neck.

[Brief explanation of the drawing]

1 and 2 are perspective views of conventional tightening means, and FIG. 3 is a schematic sectional view of an embodiment for fixing a deflection yoke to a cathode ray tube.
FIG. 4 is a schematic sectional view of an embodiment in which a correction magnet device is fixed to a cathode ray tube, and FIG. 5 is a perspective view of a tightening means in the present invention.
FIG. 6 is a perspective view of a tightening means showing another embodiment of the present invention. 8 in the figure is a coil bobbin, 10.15 is a tightening part, 11,
16 is a tightening means, 12 is a cathode ray tube, 13 is a halter, 1
7 is a ring part, 18 is a notch part, 19, 20, 23 is a long piece part, and 21, 22, 24 is an operating part.

Claims (1)

[Scope of utility model registration request] A cathode ray tube, a coil bobbin or holder of a deflection component fixed to the cathode ray tube, a tightening section provided on the coil bobbin or holder, and a tightening means for tightening the tightening section, the tightening means comprising: an annular portion made of a plate-shaped spring member surrounding the tightening portion; a first elongated portion formed at one end of the annular portion; and a tip portion of the elongated portion bent radially outward. a first operating portion bent and arranged; a second long piece portion shaped on the other end of the annular portion and extending along the same circular arc in a direction opposite to the first long piece portion; A deflection component comprising: a second operating portion configured by bending a tip portion of a long piece portion radially outward; and a through hole provided in the vicinity of the long piece portion of the annular portion. Fixation device.