JPS6143268Y2 - - Google Patents

Description

[Detailed Description of the Invention] The purpose of the present invention is to reduce the size, thickness, and cost of a waterproof watch with an audio device using a piezoelectric speaker.

As shown in Fig. 1, a conventional clock with a sound device using a piezoelectric speaker generally emits sound from the sound emitting frame 1a of the back cover 1 at the bottom of the case, and a gasket 3 is placed above the speaker frame 2. Vibration plate 4 through
was arranged, and a diaphragm fixing frame 5 was fixed with screws from above the diaphragm 4 so as to crush the gasket 3 in the axial direction. 6 is a piezoelectric element. With this conventional structure, the screws are fixed, so the operation cannot be completed with one touch, the threaded part has to be large, and the cost of cutting the threads and removing burrs is quite high. There were problems in terms of operability, cost, and size.

The present invention aims to eliminate the above-mentioned drawbacks and to reduce the size, thickness, and cost of a waterproof watch with an audio device using a piezoelectric speaker. The gist of the present invention is that the body 1 accommodates the liquid crystal panel glass portion 22.
1, a ring 21 attached to the lower surface of the sound emitting hole 11a provided above the body 11, and a speaker sound emitting frame 12 connected to the ring 21 via a packing 20 below through a packing 13. A diaphragm 14 supported by pressure, a piezoelectric element 16 attached to the diaphragm 14, and a speaker sound emitting frame that is attached to a circuit case 18 in the body 11 and supports the speaker sound emitting frame 12 upward. It has a fixing plate 17 and a diaphragm fixing frame 15 which is bayonet-locked to the speaker sound emitting frame fixing plate 17 and supports the outer periphery of the diaphragm 14 by pressing it against the gasket 13 side, and the diaphragm 14 is attached to the liquid crystal panel glass. The sound emitting hole 11a and the ring 21 are arranged below the liquid crystal panel glass part 22 so as to overlap with each other in a plane. . In addition, by arranging the vibrating part below the liquid crystal panel glass so that it overlaps with the flat surface, and by placing the sound emitting part on the side of the liquid crystal panel glass, there is no restriction on the plane diameter of the vibrating part, which is necessary to ensure sound volume. It is possible to enlarge the panel, and by making digital multifunctional, it is possible to improve display content, ease of viewing, and enlarge display amount. Furthermore, the case is advantageous in that it can be made thinner and the sound can be emitted from above the case. An embodiment will be explained with reference to FIG. 2, which shows a sectional view of a watch, and FIG. 3, which shows a plan view of the bayonet fixing part of FIG. 2.

This is a watch with a sound device that has a sound emitting hole 11a above the body 11. A diaphragm 14 is placed below the speaker sound emitting frame 12 via a gasket 13, and the diaphragm 14 is arranged so as to crush the gasket 13 in the axial direction. The diaphragm fixing frame 15 is fixed by a bayonet from below.
16 is a piezoelectric element. Electrical wiring to the piezoelectric element etc. can be easily done by providing holes 15a in the diaphragm fixing frame 15. In addition, the diaphragm fixing frame 1
The rotation operation in step 5 is performed using the hole 15b provided in the diaphragm fixing frame.
This can be easily done using a jig. 17 is a speaker sound emitting frame fixing plate, and the speaker sound emitting frame 12
It positions and fixes the gasket 13 upward and forms a wall in the outer circumferential direction of the box of the packing 13. The speaker sound emitting frame fixing plate 17 can be fixed to the circuit case 18 with screws 19 or the like. Speaker sound emitting frame 12
The speaker sound emitting frame fixing plate 17 and the circuit case 18 may be integrated, but from the viewpoint of parts processing, 3
Separated into seed parts. In this embodiment, for reasons of bayonet operation and strength, the diaphragm fixing frame 15 is
The speaker sound emitting frame fixing plate 17 is preferably made of a metal material, and the speaker sound emitting frame 12 is preferably made of a plastic material from the viewpoint of corrosion resistance and molding. 20 is Patsukin,
The ring 21 and the speaker sound emitting frame 12, which are fixed to the body 11 in a watertight manner, are waterproofed.

As shown in one embodiment, the speaker sound emitting frame 12 can be fabricated by plastic injection molding or the like, and the diaphragm fixing frame 15 and the speaker sound emitting frame fixing plate 17 can be fabricated at low cost by drawing metal thin plates or the like. In addition, the ease of incorporation is also improved with the speaker sound emitting frame 12 and the packing 13.
can be simply thrown in, and the diaphragm fixing frame 15 can be assembled with a one-touch rotation operation, making assembly extremely easy.

Moreover, since the waterproof part is locked with a bayonet, it is simple, small and thin, and does not take up space on the watch. Therefore, in a digital watch, even if it is placed below the liquid crystal panel, the watch will not become too thick and the panel can be made wider. Also,
Since the speaker sound emitting frame 12 can be processed by plastic injection molding, the positions of the diaphragm and the case sound emitting part can be freely selected while taking into consideration the watch movement space and case design.

According to the present invention, it is possible to create a small and thin watch that requires minimal space for waterproofing, and in the case of a digital watch, it is possible to widen the liquid crystal panel, making it possible to create a watch with a high degree of freedom in design. Moreover, since the structure is simple and easy to manufacture, this waterproof watch with a sound device can be mass-produced at low cost.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main parts of a conventional waterproof watch with a sound device. FIG. 2 is a sectional view of the main parts of a waterproof watch showing an embodiment of the present invention. FIG. 3 shows a plan view of the bayonet fixing portion of FIG. 2. 11... body, 2, 12... speaker sound emitting frame,
3,13...Putskin, 4,14...Diaphragm,
5, 15... diaphragm fixing frame, 6, 16... piezoelectric element, 17... speaker sound emitting frame fixing plate, 22... liquid crystal panel glass section.

Claims (1)

[Scope of utility model registration request] A body 11 that houses a liquid crystal panel glass portion 22;
A ring 21 is attached to the lower surface of a sound emitting hole 11a provided above the body 11, and a speaker sound emitting frame 12 is pressed and supported via a packing 13 below the speaker sound emitting frame 12, which is connected to the ring 21 via a packing 20. a diaphragm 14 and a piezoelectric element 16 attached to the diaphragm 14
and a speaker sound emitting frame fixing plate 17 attached to the circuit case 18 in the body 11 and supporting the speaker sound emitting frame 12 upward; The diaphragm 14 has a diaphragm fixing frame 15 that presses and supports the outer peripheral part of the diaphragm 14 toward the gasket 13. The diaphragm 14 is disposed below the liquid crystal panel glass part 22 so as to overlap with it in a plane, and the diaphragm 14 is arranged so as to overlap the sound emitting hole 11a and A waterproof watch with a sound device characterized in that the ring 21 is arranged horizontally to the side of the liquid crystal panel glass part 22.