JPS622640Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a sound emitting port structure for electronic equipment.

Generally, the sound emitting port of an electronic device that has an electronic sound generation function, such as an electronic wristwatch with an alarm function or a small electronic calculator with a melody generation function, is provided with a through hole for sound emission in the device case. It has a structure in which a dustproof screen is provided on top of the device, and a decorative panel having sound emission holes is provided on top of the dustproof screen, and the through hole is provided in the bottom of a recess formed on the outer surface of the device case. The dustproof screen and decorative panel are adhesively fixed within the recess.

By the way, in the sound emitting port structure, in order to improve the dustproof effect and to make the sound emitting holes of the decorative panel and the through holes visible through the mesh of the dustproof screen inconspicuous, the dustproof screen is made with as fine a mesh as possible. However, if the mesh of the dustproof screen is made fine in this way, the bottom of the recess and the decorative panel will be separated by the dustproof screen, so the dustproof screen and the decorative panel can be separated from the bottom of the recess at once. It becomes difficult to adhere to the

Conventionally, a liquid adhesive with low viscosity is applied to the bottom of the recess, and the dust-proof screen and decorative panel are sequentially stacked on top of the adhesive, allowing the adhesive to dry and solidify. A method of adhering to the bottom surface is adopted, and if a liquid adhesive with low viscosity is used in this way, the adhesive will seep through the mesh and onto the dustproof screen, making it possible to securely bond and fix the decorative panel as well. be able to.

However, in the conventional sound emitting port structure in which the dustproof screen and decorative panel are bonded and fixed using liquid adhesive as described above, the dustproof screen and decorative panel are inserted into the recess while the adhesive is in liquid form. Therefore, the working time is limited, and the adhesive must be applied in an amount that is sufficient to ooze out onto the dustproof screen. It is troublesome to control the amount, and what's more, the adhesive may protrude from around the decorative panel or from the sound emitting hole, making it necessary to remove the overflowing adhesive, and leaving traces of the adhesive leaking out. The drawback was that it often spoiled the appearance.

This idea was created in view of the above-mentioned circumstances, and its purpose is to easily and reliably adhesively fix dustproof screens and decorative panels, and to solve the problem of adhesive protrusion. It is an object of the present invention to provide a sound emitting port structure for electronic equipment that also eliminates the problems.

An embodiment of this invention will be described below with reference to the drawings.

In the figure, 1 is a case of an electronic wristwatch, and 2 is a watch glass. 3 is a recess formed on the outer surface of the case 1; 4 is a through hole for sound emission provided at the bottom of the recess 3; below the through hole 4, a sounding device 5 is provided. . This sounding device 5 includes an electroacoustic transducer (for example, an electromagnetic buzzer or a piezoelectric buzzer) 6 and a resonator 7, and the sounding device 5 connects the neck portion (sound emitting portion) of the resonator 7 to the through hole It is attached to the case 1 by fitting into the case 4. In addition, 8 is a waterproof gasket.
9 is a double-sided adhesive sheet adhered to the bottom surface of the recess 3; 10 is a dustproof screen; 11 is a decorative panel having sound emission holes 12, 12;
is provided with an opening 9a in a portion corresponding to the through hole 4, and the recess 4 except for the through hole 4
is glued to the bottom of the Further, the dustproof net 10
, the mesh in the part facing the through hole 4 is made finer, and the mesh in other parts is made larger. is adhered to the upper surface of the double-sided adhesive sheet 9 through the mesh of the dustproof net 10.

To adhere the dustproof screen 10 and the decorative panel 11 into the recess 3, first adhere the double-sided adhesive sheet 9 to the bottom of the recess 3, and then stack the dustproof screen 10 and the decorative panel 11 on top of this in order. This is done by applying pressure, and in this way, the dustproof net 10 bites into the adhesive layer of the double-sided adhesive sheet 9, and the adhesive layer bulges at the mesh part of the dustproof net 10. The decorative panel 11 is adhered to the raised portion of this adhesive layer.

In this sound emitting port structure, since the mesh of the dustproof net 10 is made larger in the part that does not face the holes 4, the decorative panel 11 has a large adhesive area in this large mesh part, and the double-sided adhesive sheet Therefore, not only the dustproof screen 10 but also the decorative panel 11 can be adhesively fixed with sufficient adhesive strength.

Furthermore, in this sound emitting port structure, the dustproof screen 10 and the decorative panel 11 can be simply glued together using the procedure described above, so these gluing operations can be easily carried out, and liquid adhesive can be used. Since it is not a solid material, there is no problem of the adhesive coming out.
By making the portions facing each other finer, the dust-proofing effect can be improved and the through holes 4 can also be made less noticeable.

This sound emitting port structure can be widely used not only as a sound emitting port for electronic wristwatches, but also for small electronic calculators with a melody generation function, and other electronic devices equipped with an electronic sound generating function. It is.

Since the sound emitting port structure of this invention is as described above, the dustproof screen and the decorative panel can be easily and reliably adhesively fixed, and the problem of adhesive protrusion in the conventional sound emitting port structure can be avoided. In addition, it is possible to improve the dustproof effect and make the through holes less noticeable.

[Brief explanation of the drawing]

1 and 2 are a longitudinal sectional side view and an exploded perspective view showing an embodiment of this invention. 1...Case, 3...Recess, 4...Through hole, 5
...Sounding device, 9...Double-sided adhesive sheet, 10...
Dustproof net, 11... Decorative panel.

Claims (1)

[Scope of utility model registration request] A recess formed on the outer surface of the device case, a through hole for sound emission provided on the bottom of the recess, a dustproof screen provided on the bottom of the recess, and a decorative panel provided on the dustproof screen. In the sound emitting port structure of an electronic device, the mesh of the dustproof screen is made finer in the part facing the through hole and larger in other parts, and the dustproof screen is bonded to the bottom of the recess except for the through hole. A sound emitting port structure for an electronic device, characterized in that the decorative panel is adhered to the double-sided adhesive sheet through the mesh of the dustproof net.