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JPS5786488

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DESCRIPTION JPS5786488
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1: An electronic timepiece using a conventional
sound output plate structure, a: cross sectional view, b: a plan view seen from the back pig side,
FIG. 2: using a conventional sound output plate structure In the case where the worn electronic
watch is strongly attached to the arm, Fig. 3: An electronic watch using an embodiment of the
sound emitting plate structure according to the invention, Fig. 4: an electronic watch using the
sound emitting plate structure according to the invention In the case where the arm is strongly
attached to the arm, FIG. 5 shows an embodiment of the sound emitting plate structure according
to the present invention, 6N: an electronic clock using another embodiment of the sound emitting
plate structure according to the present invention A): Cross-sectional view, b: Plan view seen
from lid side, FIG. 7: Using another embodiment of the sound emission plate structure according
to the present invention Electronic clock, (in the case where there is a bent portion at the
protruding part of the sound output board, Fig. 8: an electronic clock using another embodiment
of the sound output board structure according to the present invention , (When the sound release
hole is formed in a part of the bent portion of the sound release plate) 1 и и и и и и и и и и и и и и и и и и и и
back pig, 3 и и и и и и и и и и и и и и и 4 ...... sound plate, 5 ииииии movement, 6 ...... resonant space, 7 ......
Hootoana, 8 ...... pads, 9 ииииии Cover glass, 10 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и contact spring, 12 и и и и и и и и
DETAILED DESCRIPTION OF THE INVENTION The present invention is an FEl'-type buzzer
structure for a heavy duty watch, and a piezoelectric element attached to the back pig as a book
which is a sore throat to an 8E11-type buzzer structure which uses a nose pig as a diaphragm. .
The EEtIr type buzzer is widely used as an alarm device for an electronic watch because the
buzzer is formed with a simple structure in which the Wang element is attached to the sliding
plate. As a diaphragm, a flat plate with a relatively large area is required. In a watch, a metal
plate, a watch cover glass and a back pig are used. Among these, focusing on the type of
piezoelectric buzzer that uses Xiang Pig as a diaphragm, there is no limitation on tethering such
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as the type using a cover glass, and the type using a metal plate Although it is not necessary to
provide a waterproof structure such as Kfr et al., It is not necessary to provide a waterproof
structure, but when the watch is attached to the arm, the buzzer adheres to the back pig and the
skin comes into close contact. It has the drawback of going down. Conventionally, in order to
eliminate this defect, a sound emission cover 4 covering the bottom of the back pig is newly
provided under the back pig to receive this defect as shown in FIG. 12 and between the back pig
2 and the sounding naper 4 A structure has been proposed in which a resonance space 6 and a
sound emission hole 7 are formed to prevent the sound volume of the @@ emotion at the same
time as in the case of the back pig alone, and the sound is emitted at a short distance. L7) The
distance between the bottom of the sound emitting cover in contact with the arm and the
position of the discharge hole is 12 nm (No. 2-1 normal Q, 3-0.4 ms) L The volume can not be
reduced when worn with normal strength, but if it is worn strongly as shown in the second
(support), the tumbling hole is clogged up to the upper side of the arm. The chopsticks are
greatly downed, while the thickness of the sounding board is t2, in order to prevent the B dipping
down, the sounding Oshima is 1. The problem is that the watch gets thicker if you The present
invention compensates for the insufficiency of the conventional structure, and it is proposed that
a structure is proposed to prevent the volume reduction of the hood due to the Fil mounting
strength without making the clock N. In the following drawings, Niji this invention is used for the
station. FIG. 3 is an embodiment of the present invention. The major difference between the
conventional structure and the conventional structure is that the sound emission cover is
extended in the radial direction from the joint portion between the back pig slope and the sound
emission cover (FIG. 3) and further bent to the side of the pig. By adopting this structure, as
shown in FIG. 4, even if the arm is strongly attached as shown in FIG. 4, the projection part can
prevent the arm from blocking the sound emission hole. Therefore, the sound emission hole
height and the sound emission cover thickness can be minimized, and the wearing strength K can
be reduced without lowering the volume and the watch thickness.
Although FIG. 5 illustrates only the sound emission cover shown in FIG. 3, it is possible to form
by plastic molding, and also by metal processing when molding it with metal. Significant cost
increases compared to covers. Although the present invention has been described based on FIG.
3 and described above, the present invention is not limited to FIG. 3 without discussion until it is
discussed, and as shown in FIG. A structure in which a projection is provided on the cover, a
structure having a bent portion as shown in # 7 aK, and a structure with 8-11 to 4-11. This is an
example of the invention. By using the present invention as described above, it is possible to
realize the sound t at the time of wearing the arm, which was the problem of the aEt-type buzzer
using the back pig as a diaphragm, without increasing the watch thickness, and its practical
significance Is large.
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