| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain excellent resonance by securing a proper width of a resonance chamber, and to obtain one-stage constitution of a resonance box together with a sounding plate group for one musical instrument. <P>SOLUTION: The resonance box 50 has a wooden front-side common wall 51 extending to almost the overall length in a key array direction and a rear-side common wall. A lower register part 50A and an intermediate register part 50B are sectioned into resonance chambers RM1 and RM2 with parallel partition plates 53 connecting the front-side common wall 51 and rear-side common wall and oblique plates 54 and 55 connecting the partition plates 53. The width of the resonance chambers RM1 and RM2 in the key array direction is secured to be larger than the width of two corresponding sounding plates 30, and the respective resonance chambers RM1 and RM2 are partitioned to overlap with each other in front view. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
