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JPS5685478

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DESCRIPTION JPS5685478
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention.
FIG. 2 shows an enlarged view of the sounding body joint. 3 to 5 show an embodiment of the
speaker. 1 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 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 иии 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 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 иииии Piezoelectric plate, 12 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 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 Plates, 16 ииииии Electrodes 17 иии Electrodes
18 иии Piezoelectric material 19 ииииии Sounding body, 20 иииииииии
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker
characterized in that a part of an instrument body is used as a diaphragm. An embodiment of the
invention is shown in FIG. FIG. 1 is a sketch of an embodiment in which a sounding body using a
violin as an example of a musical instrument and a piezoelectric material as a part of which is a
diaphragm is joined. In this example, the front board (sound board) 1. In the violin composed of
side plate 69 ? 49 strings 5, 11 holes 6 ? ? pieces 7 etc. connecting back plate 29 front plate
1 and back plate 2 with the piece 7 as a diaphragm, the sounding body 8 on the side of the piece
Joining (1) 2? ? ? ? ? ? ? ? ? ? ? ? ? is a speaker. According to the present
embodiment, by inputting a sound generation signal to the ball number body 8 from the outside,
it is possible to obtain reproduction of music as a musical instrument body itself as a speaker
(including resonance discharge). FIG. 2 is an enlarged view of the sounding body junction, and 9
shows a code for obtaining an input signal. In the violin as the musical instrument used in this
example, the music signal is directly input and the reproduced sound is obtained by connecting
the sounding body to the piece to obtain the reproduced sound. However, the sounding used in
the present invention described below The junction is not limited according to the body
configuration, advantages. For example, as shown in FIG. 2, it is also possible to bond the sound
producing body 8 'to the back surface of the front face & 1. Music can be played back at any
point where the sounding body is joined, as long as the plate can be moved. Hereinafter, the
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sounding body used in the present invention will be described. The sounding body used in the
present invention has already been filed by the present applicant in Japanese Patent Application
Laid-Open No. 54-111329, and examples of a speaker using the sounding body are shown in
FIGS. 3 and 5 (2). In FIG. 3A, reference numeral 10 denotes a 5 ttlj body plate, and 11 to 15
denote piezoelectric plates, which vibrate in plane phase according to an input signal. FIG. 3B is
x-x '#' 1rkJ of FIG. 3A. In FIG. 3C, reference numerals 16 and 17 denote upper and lower
electrodes applied to the piezoelectric material 18, respectively. When an audio signal is input
between the electrodes 16.17, the area is made to vibrate in the direction of the main surface of
the piezoelectric material 18. However, the bimorph configuration with the conductive member
10 causes a surface bending vibration to occur. It is a thing. Therefore, by changing the
dimensions of the respective piezoelectric plates 11 to 15, resonance frequencies of the
respective ridges are generated, and when combined with the respective higher-order vibrations,
sound pressure frequency characteristics as shown in FIG. 4 are obtained. Although the number
of piezoelectric plates may be one, a large number of piezoelectric plates having different sizes
and wholesales are used, but the sound pressure frequency characteristics are improved. The
lamination of the piezoelectric plates is also uniform, and the polarization directions are all the
same. By surface bonding this sounding body to any plate, these plates themselves!
It is one copy. FIG. 5 shows that this sounding body is surface-bonded to a plate. In FIG. (3) 5, 19
is a sounding body and 20 is gold. Thus, this sounding body is a novel one that can be used as a
vibrating portion by bonding to any vibrating plate. As a method of joining, adhesive agent, metal
brazing, welding, etc. are possible. In addition, the selection of the appropriate adhesive also
makes it possible to weld the sounding body from the plate. As described above, the sounding
body used in the present invention can be made to have a root as a speaker by being joined to
any plate capable of vibrating. According to the present invention, since the conventional speaker
is generally a box (BOX) type, the novelty is not seen in today's diversifying design orientation,
and the disadvantage is that it must be uniform. Can be eliminated. According to the speaker of
the present invention, as long as a vibrating plate is provided on a part of the musical instrument
body (playable musical instruments, musical instrument bodies as ornaments, minichier musical
instruments, toy musical instruments, etc.) You can get music (voice) playback from that
instrument regardless of (4) The purpose of the present invention is to use a speaker as a single
unit. If you use a guitar or the like as a speaker for a popular karaoke today, you can enjoy the
feeling of playing without playing a guitar. Further, in the store advertisement of a musical
instrument or a record shop, more effective decoration and advertising effects can be obtained
by being able to reproduce music and weight from the musical instrument rather than just
displaying it as a musical instrument. Furthermore, in interior decoration with emphasis on mood
such as coffee shops and snacks, it is possible to perform interior decoration that is more
effective in spatial arrangement and uniqueness compared to conventional uniform speakers. As
a more effective application, a musical instrument such as a one-string quartet can be used as a
speaker to play with a plurality of musical instruments, making it a "string quartet without a
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player". At the same time, the same use as this example can be obtained in many ways. In
addition, in applications using a plurality of musical instruments, the same effect can be obtained
by using the present invention. It is advantageous to have so-called mixing exercises where you
can play according to the music of the bass if you have a small speaker (6) that is applied to the
literary instrument.
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