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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a watch case
with an acoustic device showing an embodiment of the present invention, and FIG. 2 is a plan
view of FIG. 1 ...... watch case, upper recesses 1a ...... wristwatch case upper surface, 1a '...... voids,
1b ...... under the concave portion, 1c и и и иии Thin part, 1 d ииииииииииииииииииииииииииииии Piezoelectric element, 3
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии и Reinforcement member 6,
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии и и и Connection
member, 11 и и и и и и и и
DETAILED DESCRIPTION OF THE INVENTION The present invention 1 relates to the
improvement of a watch case with an audio device, and more particularly: (A sound with an audio
device attached to a sound case of the watch case formed of a synthetic resin material 6 ? ? ?
Case has a device that fixes the piezoelectric element on the back of the crow and emits sound
from the top of the copy sheet, or a separate vibrator with a piezoelectric element fixed on it and
a sound emission hole on the back H In general, a structure with a device mounted inside and
emitting a sound from the lower sound emission hole is general, and if a special device is not
added (1) // l it is necessary to emit a sound from above In both cases, the cost of purchasing the
case is high, and the design 1-case upper surface O arrangement, that is, the display of the case
of the tental indica clock, can not be taken large, so it is subject to the restriction ?. This
examination sword 5 eliminates the above-mentioned various disadvantages, and the thickness of
i1tlll is formed on the watch booth on the plus T-ck box by the j-helper,-14-ditch The audio
equipment with an attached watch case structure 7 + M will be described on the basis of the
drawing with reference to the administration of the +4 east. The upper surface of the watch case
1 made of a plastic material, a part of the upper surface (early) upper portion [Thin wall 1c is
provided to form concave portions 1? and 1b from the direction and the remaining 1 side is the
inner surface t of the thin wall 4V = 1c The thin-walled portion 1c and the recessed portions 1?
and 16 constitute a vibration assisting portion by fixing the ? ? 1?E ? 7 cuboid 2 thereto. The
opening part 1d to which the crow 4 is attached via the banogino 3 is drilled and the gap A
between each concave part 1?, 1b and the opening fluid is small and the stress at the time of
mounting the glass 4 (2) The reinforcement member 5 having a sound emission hole 5? made of
a metal material which doubles as the sound emission of sound in the recess 1a has a void 1? ?
at the lower part of the four portion 1a And fit. The lower part of the watch case 1 has an inner
frame 7 for supporting the acoustic drive unit (not shown) including a camico part connected to
apply a current signal to the piezoelectric element 2 and the timepiece mechanism 6. The back
cover 9 is connected with the connecting member 10 by turning the hook / hook 8 and the metal
sheet 11 is decorated and reinforced to cover the surface of the synthetic resin around the upper
surface of the watch case 1 It's because it's broken. In the embodiment in FIG. 1, the thin portion
1c provided on the upper surface of the j case 1 is formed with the concave portions 1? and 1b
from the upper and lower surfaces in the embodiment of FIG. Then, the piezoelectric element 2 is
fixed to the internal light to constitute a vibrating portion and, at the same time, the watch case
with an acoustic device is formed in which the reinforcing member 5 is fitted through the recess
1a17) air gap 1? '.
Since it is said structure, a part of wristwatch case 1 which consists of a synthetic resin material
becomes an integral vibration part which adhered piezoelectric element 2, and it is not necessary
to install a separate diaphragm (3). Because the large structure of the crow 4 can be applied to
the father and the design, the display cloth can be installed large, and the installation of the
reinforcing member 5 further diversifies the design and protects the vibration part. And so on
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jps56116694, description
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