| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To make weight reduction of a keyboard type sounding plate musical percussion instrument by simplifying the constitution, to easily standardize operation feelings of keys, and to efficient radiation of a well-balanced sound. <P>SOLUTION: An action mechanism 20 is provided according to each of keys 27 and 28, and a sound source unit UNT equipped with a resonance box 50 and a sounding plate group 30G is arranged above it. In the sound source unit UNT, the plurality of sounding plates 30 are fitted with the resonance box 50 closely to opening sides of corresponding resonance chambers of the resonance box 50. The sounding plates 30 are arrayed in pitch order along an array of keys so that sounding plates having adjacent characteristic pitches are disposed adjacently, and constituted in one stage, and action mechanisms 20 are arrayed along the array of keys corresponding to an array of corresponding sounding plates 30 and constituted in one stage. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
