To enhance sounding efficiency by not concealing a portion with a high amplitude in a vibrating sound board with a music plate, and by not disturbing the sounding of the sound board with the music plate.
A music stand device 60 is arranged in a rear side of a key push part KBa and just on a sound board 35. A music plate 61 of the music stand device 60 is adjacently opposed in parallel to an upper face of the sound board 35 in an inclined state. A transducer Tr is arranged on a lower face of the sound board 35, and the sound board 35 is excited to generate a sound. Transducers TrR, TrL are arranged at the right side and left side of the music plate 61 in an inclined state as viewed by plane within a range in a depth direction of the music plate 61 in the inclined state, and arranged in positions not overlapped with the music plate 61 in the inclined state as viewed by plane, in the sound board 35.
ISHIHARA HIDEKI
KATO TAKASHI
FUJITA TAKASHI
| JP2008191691A | 2008-08-21 | |||
| JP2005338224A | 2005-12-08 | |||
| JP2007011036A | 2007-01-18 | |||
| JPH0573039A | 1993-03-26 |
Satoshi Muramatsu
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