JPS6335432Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a wristwatch case for an electronic wristwatch that has a built-in speaker for sound transmission.

Conventionally, in such electronic wristwatches, a push button for adjusting the time or setting an alarm, a sound hole for a speaker, and the like are provided in the watch case body. Conventionally, however, when attaching the push button to a watch case body, a recess is formed in the watch case body to guide the head of the push button, and a through hole through which the button shaft of the push button is inserted is formed in the bottom of the recess. If a sound hole for a speaker is installed in the watch case body, it is necessary to provide a protective member to prevent dust from entering the sound hole. A recess is formed in the watch case body, and a sound hole is formed in the bottom of the recess.

However, in the case of the above-mentioned wristwatch, the recess that guides the head of the push button and the recess that disposes the protective member that protects the sound hole for the speaker are formed separately. The machining work to form the recess is troublesome, and especially when the shape of the head of the push button is non-circular, it is necessary to form a recess that fits the shape, resulting in disadvantages such as complicated machining. .

This idea was made in consideration of the above circumstances, and its purpose was to simplify the processing of the case body, to easily change the shape of the head of the push button, and to improve the design. Our goal is to provide excellent watch cases as well.

An embodiment of this invention will be specifically described below with reference to FIGS. 1 and 2. In the figure, 1 is the case body of the electronic wristwatch, which is made of metal. An elongated belt-shaped recess 2 is formed on the 6 o'clock side of the upper surface of the case body 1. The bottom of the recess 2 has a through hole 3 that penetrates into the case body 1.
3 and a sound hole 4 are formed. The through holes 3, 3 are formed on both sides of the recess 2, and push buttons 5, 5 can be attached thereto. Further, the sound-reporting hole 4 is formed slightly to the left of the center of the recess 2, and the sound-reporting tube 6a of the speaker 6 is attached thereto. The push buttons 5, 5 are used to adjust the time, set an alarm, etc., and are configured in the same shape. That is, the push button 5 is made up of a head 5a and a button shaft 5b, and the head 5a is a square plate with approximately the same size as the width of the recess 2, and whose thickness is the same as the depth of the recess 2. is formed and placed within the recess 2.
The button shaft 5b is inserted into a through hole 3 formed in the recess 2, and its tip protrudes into the case body 1, and an O-ring 5c is attached around the button shaft 5b. At the same time, an E-ring 5d is attached to the tip protruding into the case body 1. The O-ring 5c slides and seals the inner circumferential surface of the through hole 3 while being pressed against it, and the E-ring 5d prevents the push button 5 from slipping out. Furthermore, the button shaft 5
An upper housing 7 is disposed within the case body 1 below b, and a lower housing 8 is disposed below this upper housing 7. A circuit board 9 is disposed on this lower housing 8 . The upper housing 7 also has leaf springs 10, 1 at locations corresponding to the push buttons 5, 5.
0 is attached. This leaf spring 10,10
The tips protrude below the button shafts 5b, 5b of the push buttons 5, 5, and movable contacts 11, 11 are provided on the lower surfaces of these protruding portions, respectively. Fixed contacts 12, 12 are provided on the circuit board 9 located below each of these movable contacts 11, 11, respectively.
Therefore, in the normal state, the push button 5 is pressed by the leaf spring 1.
0, the tip of the button shaft 5b is pushed up and the second
As shown in the figure, the head 5a protrudes above the case body 1, the movable contact 11 is separated from the fixed contact 12, and when the push button 5 is operated, the leaf spring 10
When the head 5a of the push button 5 is pressed against the pressure, the button shaft 5b is pushed down and the movable contact 11 is also pushed down.
2, a switch operation is performed.

Further, a speaker 6 is disposed on the circuit board 9, and a sound tube 6a of the speaker 6 is provided.
is installed in a sound hole 4 formed in a recess 2 of the case body 1. Further, a decorative plate 13 made of synthetic resin is attached to the sound hole 4 between the heads 5a, 5a of the push buttons 5, 5 in the recess 2 using an adhesive or the like. This decorative board 13 is formed in the shape of a strip having the same width as the width of the recess 2. Further, the decorative board 13 is formed with a lead-out hole 13a.
The lower side of this lead-out hole 13a has the same shape as the sound reporting hole 4, and the upper side of the lead-out hole 13a has a protective portion 13b formed in two semicircular shapes. The protective portion 13b of the decorative board 13 prevents dust and the like from entering the sound reporting hole 4. Therefore, the sound emitted from the speaker 6 is transmitted to the sound tube 6.
a, the sound is emitted to the outside of the case body 1 through the sound reporting hole 4 and the outlet hole 13a of the decorative panel 13.

According to the electronic wristwatch case configured in this way, the heads 5 of the push buttons 5, 5 are provided on the top surface of the case body 1.
Since the configuration has a recess 2 for arranging the decorative plate 13 covering the sound reporting hole 4 and the sound reporting hole 4, the recess 2 for arranging the respective heads 5a, 5a of the push buttons 5, 5 as in the conventional case, Since it is not necessary to separately form the recesses in which the decorative board 13 is placed, the processing work for the recesses 2 is simplified. In addition, by making the decorative plate 13 arranged in the recess 2 smaller or larger, the push buttons 5 and 5 arranged in the same case body 1 can be
The size and shape of the heads 5a, 5a can be easily changed. Furthermore, since the decorative board 13 is made of synthetic resin, it can be easily manufactured and the design can be diversified.

Note that this invention is not limited to the embodiments described above, and may be constructed as shown in FIGS. 3 and 4, for example. That is, in the case shown in FIG. 3, the upper surface of the metal case body 20 is largely cut out at the 6 o'clock side to form a recess 21, and each head 22a of the push button 22, 22 is inserted into the recess 21. 22a and a decorative board 23 made of synthetic resin. In this case, the decorative board 23
is formed so as to surround two mutually adjacent sides of each head 22a, 22a of the push buttons 22, 22,
Further, a lead-out hole 23a is provided in a portion corresponding to a sound reporting hole (not shown) formed at the bottom of the recess 21. Even with a wristwatch case configured in this manner, the same effects as in the above-described embodiment can be obtained.

Further, in the case shown in FIG. 4, a recess 31 is formed in the case body 30 as in the case of FIG.
In addition to arranging two heads 32a, 32a, a decorative board 33 made of synthetic resin is arranged so as to surround each head 32a, 32a. In this case as well, the decorative board 33 is provided with a lead-out hole 33a in a portion corresponding to the sound reporting hole. Even with a wristwatch case configured in this manner, the same effects as in the above-described embodiment can be obtained.

As explained above, according to the wristwatch case of this invention, the top surface of the watch case body has a decorative plate formed with a protective part that protects the head of the push button and the sound hole, and a recessed part to be placed. Since there is no need to separately form the recesses for arranging the head of the push button and the decorative board, the processing work for forming the recesses is simplified, and by changing the size and shape of the decorative board, This has the advantage that the size and shape of the push button can be easily changed within the same case body, and the design can be diversified.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts of a wristwatch case according to this invention, Fig. 2 is a cross-sectional view taken along the - line, Fig. 3 is an external perspective view of the main parts showing another embodiment, and Fig. 4 is a further example of another embodiment. FIG. 2 is a perspective view of the main part of the embodiment. 1, 20, 30...Case body, 2, 21, 3
1... recess, 3... through hole, 4... sound reporting hole, 5,
22, 32...Push button, 5a, 22a, 32a...
Head, 13, 23, 33... decorative board.

Claims (1)

[Scope of utility model registration request] A recess is formed on the top surface of the watch case body, a through hole for mounting a push button and a sound hole for a speaker are formed in the bottom of the recess, and the head of the push button and the sound hole are protected within the recess. A wristwatch case characterized by having a decorative plate formed with a protective portion.