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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of
the present invention, and FIGS. 2 and 3 are a plan view and a partial sectional view 5 of the
main part of the same, respectively. FIG. 6 is a perspective view and an elevational view showing
another embodiment of the present invention, and FIGS. 6 and 7 are a perspective view and a
partially enlarged cross-sectional view showing a further embodiment of the present invention,
respectively. E и pronunciation PE sector A12 и ░ ... locking hole, 13 ...... claw portion. ? 1 ?-695 5 и 1 иии
"? 3 @ ? 5 B @ 7 @ ? 6 @ 1 70 1
[Detailed description of the invention] This proposal is to control the soundness by controlling
the soundness of the '# wave that goes out by shaking the thick m of the opening of the sound
generator front baffle with the sound insulation board. 9. Complementary volume control device.
It is normal to insert electric current such as a variable resistor (EE transition element is inserted
in the sound I # adjustment ri same point in cost, but this book's wII such as riIIJ variable resistor
The number of mechanical parts increases, so space (1) is also cost-wise 4 in this amount, the
circuit is somewhat complicated, L- becomes ~ II ? ? ?, volume switching type In addition,
since extra switches are required, in addition to the disadvantages of Wang and (b), level control
parts such as volume switching resistors are required, which is further disadvantageous in cost
and space. In this case, this invention is a book developed for rounding excluding all the
conventional X and a described above, and the circuit level control member isolates the effective
area of the @ sound body front opening L portion without using any It is intended to change the
sound volume level by changing it with a board. Next (this will be detailed according to the
illustrated implementation 4 + Ii. In FIG. 1 and FIG. 2, the numeral 1 is a device of a nine watch
having a sound generator, and the time display unit 2 is on the right side, and a speaker 5 such
as a buzzer is disposed on the left axis. Then, the sound passing hole 4 on the front face of the
sound producing body 5 is collected and the I-rails 5A, 5E] which are cross-sectioned in the
upper and lower sides of the baffle are flattened and shown between FIG. As described above, the
sliding door noise shielding plate 6 is disposed so as to be displaceable. In addition, the right
inner surface f of the suitable sound board 6 is provided with a prevention pin 6A so that this pin
is locked at the left edge of the sound passage hole 4 to prevent the sound insulation board 6
from coming off the idler 5A, 58. It is. The left shaft of a vinegared rice 6 is provided with semicircular concave @ 6 for hooking the entire fingernail. ??????????? According to the
example, by moving the sound board 6 on the front of the sounding body 5 with fingers etc. and
changing the exposed area of the sound-passage hole 4, it is possible to save the sweat that is
ejected from the sounding body 5 to the outside. That is, C which changes the sound volume
appropriately is wooded. In this case, as shown in FIG. 4 and FIG. 5, the case 1 and the sound
passage hole 4 are N4 sentences, and according to the tapering portion thereof, a fine a11 f piece
8 through a bin 7 at a predetermined portion of the case. The volume from the perspiration body
can be 4-converted by changing the splay of the sound-passing hole 4 by rotating the knob 8A to
the soil F and changing the splay of the sound-passing hole 4. As a matter of fact, a # & 9 for
closing sound passage hole 4 is provided by pivoting on ? iij ++ (3) openable and closable Km
part 10 of case 1 and always opened with a spiral spring 11 In this case, the claws 13 of the
sound insulation plate 9 are inserted into the lock holes 12 on the case 1 side, and when the
electric charge is carried out, it is preferable to lock the closure of the sound insulation plate 9.
In the eleventh embodiment, the sound intensity setting can be switched in two stages by
opening and closing of the appropriate sound board 9. As described above, according to the
present invention, it is possible to change the amount of juice which is generated from the Toki
sounding body to the outside of the case from storing the sounding body and changing the
exposed bacterial species of the sound passage hole of the nine cases with a sound insulation
board. Since it can do it, it can do volume control-without operating the 4IC circuit. Also,
compared to the conventional @fishing sound volume cordage charging, the use of 116 parts in
total is small as a whole as a whole as compact as Ii, especially timers such as timers are required
to be effective and tgK like In addition to being advantageous in terms of cost and space because
it can reduce wiring and parts count, it can also be expected to control the tone though it is a
little. It is a useful invention that has many advantages such as designing (4) which is full of
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