| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent choke and turbidity of sound in a keyed instrument such as a piano, a harpsichord and a clavierchord or lowering of separation performance of sound or the like. SOLUTION: Sound wave vibration generating mechanism of the keyed instrument is made to have bi-secting structure of the wave vibration generating mechanism at the upstream side (A) and the wave vibration generating mechanism at the downstream side (B). They are laminating-arranged in a state where the wave vibration generating mechanism at the downstream side (B) is superposed on the wave vibration generating mechanism at the upstream side (A) via a plurality of load bearing members (C) of point bearing or line bearing arranged at prescribed alignment intervals on a supporting frame 19 provided at the wave vibration generating mechanism at the upstream side (A).</p> |
