JPS6018024B2 - Wristwatch with sound generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a battery, a clock device or a sound generating bag driven by the battery, and a case in which they are housed in the same empty chamber.

The present invention mainly relates to an electronic wristwatch equipped with an electronic sound generator.

In general, the vibrating membrane that generates sound is not limited to fly pond drive, but in order to generate more effective sound with low energy, the effective area is large and the thickness is thin, so evenly distributed loads such as water pressure can be applied. However, it is extremely weak against concentrated loads.

Therefore, in the case of devices that use batteries to drive either the clock device or the sound generator, or both, in order to increase the effective area of the diaphragm, the diaphragm should be placed over almost the entire area of the case so as to enclose the battery part. If you try to install it across the entire area, the batteries will usually protrude more than other parts, creating a dead space, which will reduce the overall density of the structure, and will require the removal of the diaphragm when replacing the batteries. Not only is it a hassle to replace the fin pond, but there is a risk of vibration damage.

On the other hand, since various devices such as electronic watches that use batteries require battery replacement every one to two years at most, a battery replacement part is provided on the back of the case, and the lid of the battery replacement part is closed. It is desired to be able to easily replace the Kokameike pond from the outside by opening and closing it without affecting other components. As mentioned above, an electronic acoustic rhombus counterfeit Maiko wristwatch that has both an acoustic diaphragm and a battery needs a mechanism that allows easy battery replacement without affecting the diaphragm in any way. A watch must also be compact, and I have yet to see anything that satisfies both of these requirements.

Gokugikin Electronic Acoustic Generator Automated Watch was announced, but this had a poor construction density as the sound generator, battery, and watch lamp were separated by a waterproof wall and placed independently. It uses a small watch movement for women rather than the size of men's watches, and the finish is not very smart, and the processing of the case is quite difficult.

The present invention has focused on this point, and the gist of the invention is to increase the construction density of the watch and to make it possible to easily replace the battery. In addition, the vibrating membrane is placed parallel to the battery replacement part in a plane such that the battery replacement part escapes from the battery replacement part, and the battery can be replaced by operating the battery replacement part alone, and a sound can be generated. The device is configured to efficiently emit sound from the device to the outside.Next, an example of a wristwatch with an electronic sound generating device in which the present invention is implemented will be explained based on the drawings.

Note that parts not directly related to the present invention are omitted.

The tortoise is a middle pig, 2 is a vibrating membrane, 3 is a pressure crab element piece, and the tortoise is a battery that is removably attached to the clock device 5. The diaphragm 2 is fixed to maintain waterproofness, and even though the diaphragm element 3 is fixed to the diaphragm 2, it still receives signals from an electronic circuit (built into the clock unit 5, but not shown). By supplying V, it functions as an electro-acoustic (mechanical) converter, vibrates the vibrating membrane 2 at an audible frequency to generate sound, and emits the sound from the sound emitting hole 6 to the outside space. Reference numeral 7 denotes a back cover, which is attached to the case chest 8' while maintaining a gap with the vibrating membrane 2 and the middle cover.

The battery 4 can be easily replaced without opening the hair plug 7 by opening the flea plug 10 attached to the female screw ring 9 which competes with the inner plug 1 and passes through the entrance of the sterile plug 7. be. Attach the second vibrating membrane 2 to avoid the battery replacement part.
In the figure. By providing the diaphragm in various shapes, the effective area of the diaphragm can be increased, and the density of the watch can be increased. In addition, by arranging the vibrating membrane 2 as shown in FIG.
A gap formed by the above is provided wide in a specific direction, and a sound emitting hole 6 is provided between the case body 8 and the pot 7 corresponding to the direction to connect the gap and the external space. The sound can be efficiently produced (since the sound emitting hole 6 does not form a closed space in the cavity, the vibration of the vibrating membrane 2 itself is not inhibited by the sound pressure from the vibrating membrane 2). ), and it becomes possible to emit sound efficiently in a specific direction. 0 As detailed above, the present invention allows the battery to be easily replaced without affecting the vibrating membrane by arranging the vibrating pus and the fin pond exchange neck side by side on a plane and by providing the sound emitting hole in a specific direction. At the same time, the sound emitting hole creates an open space where the gap between the diaphragm and the diaphragm connects with the outside space, making it possible to efficiently generate sound from the diaphragm. It is possible to improve the sound emission efficiency in the middle, and the density of the base material of the watch is improved, so not only can the watch be made smaller and thinner, but its structure is also simple, making it easier to handle and improve handling. It is clear that it has a great effect on all aspects such as marketability and productivity.

In this embodiment, the electronic sound generating device was described for a wristwatch. However, the present invention is not limited to this example, but is useful for all wristwatches that have both an acoustic vibrating membrane and a battery, as stated at the beginning. Needless to say, it is.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of essential parts of one embodiment of the present invention, and FIG.
1 is a rear view of the timepiece device shown in the 0 state with the hair cover removed; parts not directly related to the present invention are omitted. ]・…”Inner lid, 2…Vibration membrane, 7…Back lid, 9
...Female screw ring, 10...Battery cover, 4
...Battery, 5...Sound generating device (electronic circuit)
Built-in evening clock device. Figure 1 Figure 2

Claims (1)

[Claims] 1 A battery, a clock device driven by the battery, a vibrating membrane to which a piezoelectric element that generates sound is fixed by the action of the device, a case body for housing these in the same cavity, and In a wristwatch having a back cover attached to the back surface of the case body, the back cover has an opening for allowing the battery to be replaced independently from the outside, and a battery cover attached to the opening. At the same time, the diaphragm is installed on the entire surface excluding the opening, with a slight gap between the inner surface of the back cover, and the diaphragm and the back cover are installed around the diaphragm mounting part. A wristwatch with a sound generator, characterized in that a sound emitting hole is provided to connect a void formed by the pig with an external space, so that the sound from the vibrating membrane is emitted through the sound emitting hole.