JP3392511B2 - Coil clamp - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil clamp for holding a degaussing coil wound around the outer peripheral surface of a cathode ray tube in order to reduce the generation of static electricity.

[0002]

2. Description of the Related Art As shown in FIG.
8 is T through the brackets 28 protruding from the four corners.
It is adapted to be fixed to the V housing 16.

This cathode ray tube 18 generates static electricity due to being magnetized, so in order to reduce this static electricity,
A degaussing coil 42 is wound around the outer circumference of the cathode ray tube 18.

Conventionally, a coil clamp 60 as shown in FIG. 6 has been used as an instrument for holding the degaussing coil 42. This coil clamp 60 is attached to the bracket 28
Anchor 62 that is locked in the locking hole of the
And a clamp 64 that is curved.
The anchor 62 and the clamp 64 are integrally molded with the thin plate-shaped frame 66 because it is necessary to press the anchor 62 into the locking hole of the bracket 28 through the gap between the housing 16 and the cathode ray tube 18.

By the way, in order to efficiently demagnetize the static electricity generated by the cathode ray tube 18, the winding position, the number of windings, etc. are set by the standard of the cathode ray tube 18.

However, the conventional coil clamp 60
Then, the presser piece 68 and the frame 6 which constitute the clamp 64 are
The degaussing coil 42 enters the triangular gap 70 formed by 6 and the winding position is displaced, and the degaussing coil 42 entering the gap 70 is difficult to remove during maintenance.

On the other hand, the thickness of the bracket 28 of the cathode ray tube 18 differs depending on the standard, but the conventional anchor 62
However, since the distance between the tip of the elastic claw 72 and the collar 74 was fixed, it was not possible to cope with the change in the wall thickness, and rattling occurred.

[0008]

SUMMARY OF THE INVENTION In consideration of the above facts, an object of the present invention is to provide a coil clamp which can hold the degaussing coil at a predetermined position and can cope with a change in the wall thickness of the bracket of the cathode ray tube. .

[0009]

A coil lamp according to a first aspect of the present invention is a coil clamp for holding a degaussing coil wound around an outer peripheral surface of a cathode ray tube assembled to a housing, and comprising a plate-shaped frame. Tsuba provided at the end,
Elastic claws protruding from the collar and elastically approaching each other, a clamp plate that is curved from the frame and forms a holding space capable of holding the degaussing coil between the frame, and the holding plate from the frame In a coil clamp that has a holding plate that extends obliquely toward the front of the space, and is attached to a mounting hole provided in the peripheral portion of the cathode ray tube by the elastic claw and the collar, the holding plate and the frame A blocking means provided in the gap for blocking the degaussing coil from entering the gap, and an outer peripheral surface of the collar and a lower portion.
Cut out the surface and fit along the outer surface of the tsuba to the outside of the tsuba.
It is a cantilever that extends so that it does not come out, and the elastic claw is
It is locked in the mounting hole provided in the bracket of the cathode ray tube.
Arc spring that elastically abuts the peripheral edge of the mounting hole
It is characterized by having a piece and .

In the coil clamp according to a second aspect of the present invention, the blocking means is formed of a triangular plate that extends from the end face in the width direction of the pressing plate toward the frame and allows the pressing plate to bend toward the frame side. It is characterized by that.

[0011]

[0012]

In the coil clamp according to the first aspect of the present invention, the plate-shaped frame is gripped, and the elastic claw protruding from the flange is press-fitted into the mounting hole formed in the bracket of the cathode ray tube through the gap between the housing and the cathode ray tube. . When the elastic claw passes through the mounting hole, it elastically restores to sandwich the hole peripheral edge of the mounting hole between the free end of the elastic claw and the brim, and lock the coil clamp to the bracket. In this coil clamp, a spring piece is provided on the flange, and when the elastic claw is locked in the mounting hole, the elastic claw elastically abuts the hole periphery of the mounting hole.
Therefore, it is possible to cope with a change in the wall thickness of the bracket having the mounting hole, and the coil clamp can be locked in the mounting hole without rattling. In addition, the spring piece is arcuate and is a cantilever extending along the outer peripheral surface of the collar.
It is designed so that it does not protrude to the outside of the tsuba. Therefore, when the elastic claw protruding from the collar is press-fitted into the mounting hole through the narrow gap between the housing and the cathode ray tube, the spring piece touches the housing or the cathode-ray tube and it is difficult to recognize the mounting hole. Never.

Next, the degaussing coil is pushed into the holding space formed by the clamp plate provided in the coil clamp while being wound around the outer peripheral surface of the cathode ray tube. At this time, since the degaussing coil causes the pressing plate to bend toward the frame side, the opening of the holding space expands and can be easily pushed in.

Further, since the blocking means is provided in the triangular gap formed between the pressing plate and the frame,
The degaussing coil does not enter the gap and the winding position does not shift, and the degaussing coil can be held at a predetermined position.

In the coil clamp according to the second aspect, the blocking means is composed of a triangular plate extending from the end face in the width direction of the holding plate toward the frame. At the end of the triangular plate, it is possible to prevent the degaussing coil from entering the triangular gap formed between the holding plate and the frame. Since the triangular plate is provided at a position where it does not interfere with the frame when the holding plate bends, the bending of the holding plate can be ensured.

[0016]

[0017]

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a coil clamp 10 according to this embodiment is a thin plate-like flexible frame 12.
Is equipped with. The rear end of the frame 12 is wide and has lateral grooves 14 for preventing slippage on both sides. The lateral groove 14 is pinched with a finger, and the tip of the frame 12 is inserted into the gap between the housing 16 and the cathode ray tube 18 (see FIG. 5).

At the tip of the frame 12, the frame 1
A disc-shaped brim 20 is attached in a state of being inclined with respect to the axis of 2. By tilting the collar 20, the bracket 28 provided on the curved portion of the cathode-ray tube 18 can be contacted.

As shown in FIGS. 3 and 4, the lower surface of the collar 20 has a recess 22 at the center of the outer peripheral surface of the collar 20 along the circumferential direction.
Further, a cantilevered spring piece 24 is formed so that the lower surface of the collar 20 is communicated with the recess 22 by leaving a part of the lower surface of the flange 20 parallel to the diameter line and communicating with the recess 22. The free end of this spring piece 24 is formed with a downwardly projecting portion 26, and the bracket 2 protruding from the four corners of the cathode ray tube 18 is formed.
It is adapted to come into contact with the peripheral edge of the mounting hole 32 of No. 8.

At the center of the lower surface of the collar 20, a columnar base 30 having an outer shape that can be inserted into the mounting hole 32 is provided in a protruding manner. From the base body 30, a plate-like leg plate 34 is formed in the axial direction.
Is extended.

At the tip of the leg plate 34, the base 3 is separated from each other.
Elastic claws 36 are provided that project obliquely upward toward 0. A step portion 38 is formed at the tip of the elastic claw 36, and is engaged with the hole edge on the lower surface side of the mounting hole 32.

On the other hand, from the vicinity of the tip of the frame 12,
The arc-shaped clamp plate 40 projects and forms a holding space 44 for holding the degaussing coil 42 with the side surface of the frame 12.

Stay plates 46 and 47 are provided at the base end portion of the clamp plate 40 and the surface opposite to the base end portion, and integrally connect the clamp plate 40, the frame 12 and the collar 20. . Therefore, the frame 12 bends around the terminal end 46 </ b> A of the stay plate 46 as a fulcrum, and the terminal end 4 of the stay plate 47.
The clamp plate 40 is designed to bend around the fulcrum 7A. Therefore, when the degaussing coil 42 is pushed into the holding space of the clamp plate 40, even if the frame 12 or the clamp plate 40 is bent, the force for twisting the elastic pawl 36 does not act. Therefore, the elastic claw 36 locked in the mounting hole 32
The force to pull out is not transmitted.

On the other hand, from the free end of the clamp plate 40, a guide piece 48 that extends in a direction away from the frame 12 extends. Further, from the frame 12, the holding space 44
A holding plate 50 extends obliquely toward the frontage. With the pressing plate 50 and the guide piece 48, as shown in FIG.
A V-shaped guide portion that guides the degaussing coil 42 to the holding space 44 is configured.

Further, a triangular plate 52 is provided on the end surface of the holding plate 50 in the width direction, and the holding plate 50 and the frame 12 are provided.
A part of the triangular gap formed by and is closed.

Next, the coil clamp 10 according to the present embodiment.
The action of will be explained. First, the lateral groove 1 of the coil clamp 10
Pick the part 4 with your finger, housing 16 and cathode ray tube 1
The elastic claw 36 is press-fitted into the mounting hole 32 formed in the bracket 28 through the gap of 8. When the elastic claw 36 passes through the mounting hole 32, the elastic claw 36 is elastically restored to sandwich the hole periphery of the mounting hole 32 between the step portion 38 formed at the tip of the elastic claw 36 and the spring piece 24, and the coil clamp 10 is secured. Bracket 28
Lock on.

Here, since the spring piece 24 can be bent toward the concave portion 22 side in accordance with the thickness of the bracket 28, it elastically abuts on the peripheral edge of the mounting hole 32 without rattling. The coil clamp 10 is locked to the bracket 28.

Next, while the degaussing coil 42 is wound around the outer peripheral surface of the cathode ray tube 18, the clamp plate 40 and the frame 12 are wound.
Is pushed into the holding space 44. At this time, since the degaussing coil 42 is pushed in via the V-shaped guide portion constituted by the holding plate 50 and the guide piece 48, the work is facilitated.

The degaussing coil 42 pushed in is prevented from entering the triangular gap formed between the holding plate 50 and the frame 12 at the end 52A of the triangular plate 52, so that the degaussing coil 42 is wound. It can be fixed in place without slippage.

In this embodiment, the triangular plate 52 is attached to the end face of the holding plate 50 in the width direction as the blocking means, but it may be attached to both end faces of the holding plate 50. It may be attached to. Also,
It is not necessary to stick to the triangular shape as long as the bending of the holding plate 50 toward the frame 12 is secured.

[0032]

Since the present invention has the above-described structure, the degaussing coil can be held at a predetermined position, and the coil clamp can be locked without rattling in response to a change in the wall thickness of the bracket of the cathode ray tube. it can.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a coil clamp according to an embodiment.

FIG. 2 is a front view showing a state in which the coil clamp according to the present embodiment holds the degaussing coil.

FIG. 3 is a front view showing a state in which the coil clamp according to the present embodiment is locked in a mounting hole.

FIG. 4 is a side view showing a state in which the coil clamp according to the present embodiment is locked in the mounting hole.

FIG. 5 is a perspective view showing a mounted state of the coil clamp according to the present embodiment.

FIG. 6 is a side view showing a conventional coil clamp.

[Explanation of symbols]

12 frames 20 Tsuba 24 spring pieces 36 elastic nails 40 clamp plate 46 ribs 47 ribs 48 guide pieces 50 Presser plate 52 triangular plate

Claims (2)

(57) [Claims] 1. A coil clamp for holding a degaussing coil wound around an outer peripheral surface of a cathode ray tube assembled to a housing, the collar being provided at an end of a plate-shaped frame, and projecting from the collar. Elastic claws that are elastically accessible to each other, a clamp plate that curves from the frame and forms a holding space that can hold the degaussing coil between the frame, and a frame that faces the opening of the holding space. And a pressing plate that extends obliquely, and in the coil clamp that is attached to the mounting hole provided in the peripheral portion of the cathode ray tube by the elastic claw and the collar, provided in the gap between the pressing plate and the frame, and blocking means for preventing entry of said degaussing coil into the gap, along the outer circumferential surface of the flange cut away the outer peripheral surface and a lower surface of the flange
The cantilever that extends so that it does not protrude outside the collar.
And the elastic claw is provided on the bracket of the cathode ray tube.
Elastically around the hole of the mounting hole when locked
An arc-shaped spring piece that abuts against the coil clamp. 2. The blocking means comprises a triangular plate extending from an end face in the width direction of the pressing plate toward the frame and allowing the pressing plate to bend toward the frame side. The coil clamp according to 1.