JP2002188611A - Fixing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform fixing of a object in two directions such as a plate using a screw with a washer. SOLUTION: A plate-figured object is arranged in parallel with an axial direction of a bottom hole of a screw which is formed in a basic body side and by bringing the screw with the washer into contact with the end face of the plate with the washer inclined to screw, the plate is fixed in the two directions to the base body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing mechanism for fixing a wiring board to a base in an electronic device, for example.

[0002]

2. Description of the Related Art Conventionally, in fixing an article using a screw with a washer, it has been common sense that a seat for hitting the screw with a washer is designed so that the washer is attached perpendicularly to the screw. In this case, the washer is fixed to the object only in the screw tightening direction.
For example, as shown in FIG.
When the wiring board 2 is fixed to the wiring board 2, if the screw 3 with a washer is tightened perpendicularly to the surface of the wiring board 2, the board surface will be covered by the washer 4, which will cause electrical problems. Fixation in the direction perpendicular to the surface of the wiring board 2 is performed by inserting the screw 3 with the washer into the base 1 side by inserting the screw 3 with the washer into the fitting groove 5 formed in the base 1 side.
Washer is fixed in the horizontal direction by fastening the washer 4 to the end face of the wiring board 2 by tightening it in parallel to the surface.

[0003]

In the fixing of the wiring board 2 to the base 1, the inner width of the insertion groove 5 is limited by the molding and the ease of the insertion work.
Since the wiring board 2 is formed to be larger than the thickness dimension of the wiring board 2, the wiring board 2 rattles in the insertion groove portion 5, and since the required electronic components 6 are mounted, the wiring board 2 is easily inclined by its weight. When the washer 4 is brought into contact with the end face by the tightening of the screw 3 with the washer, the frictional force therebetween also fixes the screw in a direction perpendicular to the screw tightening direction.

However, since the washer 4 of the screw 3 with the washer and the end face of the wiring board 2 only abut in the vertical direction, the fixing strength and reliability thereof are low.

Therefore, when it is necessary to securely fix the screw 3 with the washer also in the direction perpendicular to the tightening direction,
It is necessary to add another part such as a screw. In this case, of course, the cost of the additional parts increases,
In many materials including plastic molded products, it is necessary to add a slide die to a molding die, for example, in order to form a shape in which another part can be attached from two directions. This causes cost increase.

[0006] Furthermore, by having a complicated mechanism and shape,
The disadvantage is that more space is needed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fixing mechanism capable of fixing an object in two directions only with screws with washers.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a fixing mechanism for fastening a plate-like body to a base using a screw with a washer. A plate-like body was arranged in parallel with the axial direction of the hole, and a screw with a washer was screwed into the prepared hole of the screw, the washer was inclined to the end face of the plate-like body, and the plate was fixed to the base by fastening the washer. Things.

In the above structure, the washer can be tilted by contacting a protrusion formed near the screw hole. Further, the projection can be formed by a rising curved surface and a step surface.

[0010] According to the fixing mechanism of the present invention configured as described above, the washer of the screw with the washer is inclined and abuts the end surface of the plate-like body to be fixed.
Fixing in two directions, vertical and horizontal, can be performed.

[0011]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG.

This embodiment is applied, for example, to fixing a wiring board inside a speaker device of a television receiver. Specifically, it is a mechanism for fixing a wiring board 12 on which an electronic component 11 such as a capacitor is mounted to a speaker duct 10 made of a plastic molded product by a screw 14 with a washer 13 to which a washer 13 is swingably attached.

That is, a fitting groove 15 for fitting both ends of the wiring board 12 is formed on the outer surface side of the speaker duct 10 made of a plastic molded product, and a screw is provided at a position shifted from the fitting groove 15 in parallel with the groove 15. A pilot hole 16 is formed.

In the vicinity of the screw hole 16, a rising curved surface portion 17 as a projection is formed at a position opposite to the wiring board 12 to be inserted into the insertion groove portion 15.

With such a configuration, the wiring board 12 is fitted into the fitting groove portion 15, and a screw 14 with a washer is screwed and screwed into the screw hole 16 in a state where the wiring board 12 is fixed in the vertical direction. Abuts against the rising curved surface portion 17 as a projection on the opposite side, and is inclined toward the wiring board 12 side in this state.
2 abuts against the end face.

As a result, the wiring board 12 is pulled toward the screw 14 with the washer, and is fixed also in the tightening direction and the lateral direction of the screw 14 with the washer, that is, in two directions, a vertical direction and a horizontal direction. .

As described above, in this embodiment,
Since it is fixed in two directions by one screw 14 with a washer, it can be fixed securely without using separate parts. When the wiring substrate 12 as the object is long, a plurality of screws 14 with washers may be used.

FIG. 3 shows another example. In this example, a step surface 18 is formed as a projection. In this case, the wiring board 12 is fixed in two directions in the same manner as in the above-described example.

According to the above embodiment, the following effects can be obtained. That is, in particular, since vibrations due to sound are easily transmitted around the speaker device, and a so-called sound chatter problem easily occurs, it is important to securely fix each component. In order to securely fix the wiring board, one effective method is to tighten it with screws with washers in the surface direction of the wiring board.However, capacitors as electronic components mounted on the wiring board are large, and The above-described configuration is optimal when there are restrictions on the arrangement position.

The embodiment of the present invention has been described above.
The present invention is not limited to this embodiment, but can be variously modified without departing from the gist of the present invention.

Also, the present invention is not limited to electronic devices,
It can be applied to various devices and devices.

[0022]

As described above, according to the fixing mechanism of the present invention, the washer of the screw with the washer abuts on the end surface of the plate-like body which is the object to be fixed at an angle, so that the vertical and horizontal directions can be obtained. Can be fixed in two directions, eliminating the need for additional components, reducing costs, and
The simplification of the mechanism makes it possible to save space and reduce the size of devices and devices.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of a fixing mechanism of the present invention.

FIG. 2 is a sectional view in FIG.

FIG. 3 is a cross-sectional view of another example of a fixing mechanism.

FIG. 4 is a sectional view of a conventional fixing mechanism.

[Explanation of symbols]

10 ‥‥ speaker duct, 12 ‥‥ wiring board, 13 ‥‥
Washer, 14 ‥‥ screw with washer, 17 ‥‥ rising curved surface, 18 ‥‥ step

Claims (4)

[Claims] 1. A fixing mechanism for tightening and fixing a plate-like body to a base using a screw with a washer, wherein the plate-like body is arranged in parallel to an axial direction of a screw hole formed in the base. A fixing mechanism, characterized in that a screw with a washer is screwed into a screw hole by tilting a washer to an end surface of the plate-shaped body to abut the screw, thereby fixing the plate-shaped body to the base. 2. The fixing mechanism according to claim 1, wherein the washer of the screw with a washer is inclined by contacting a protrusion formed near the screw hole. 3. The fixing mechanism according to claim 2, wherein the projection is formed by a rising curved surface. 4. The fixing mechanism according to claim 2, wherein the projection is formed by a stepped surface.