| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard apparatus of an electronic musical instrument, which is made to change in a feeling of key touch according to a key or a key range. <P>SOLUTION: The keyboard apparatus is provided with: a plurality of white key main body parts 1 and black key main body parts 2; a plurality of massive bodies 8 rotating linked with the operation and touching of the respective keys; a key frame 3 on which the plurality of keys and massive bodies 8 are arranged side by side; and a lower-limit stopper 9 and an upper-limit stopper 10 arranged on sides of the key frame 3 to control a rotation range of each massive body 8 according to a collision of each massive body 8. As shown in Figure 1(b), the mass of a plurality of particles 12 stored in a cavity part 8ea is made the largest in a key range A having the lowest sound pitch, and the mass of the plurality of particles 12 is made smaller towards a key range D having high sound pitch as shown in Fig.1(e). <P>COPYRIGHT: (C)2009,JPO&INPIT |
