| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a keyboard device of a piano capable of preventing noise from occurring when touching a key weakly and completely transferring key touch energy to a string when touching the key strongly so as to obtain a larger dynamic range of musical sound. <P>SOLUTION: A keyboard device 1 includes: a key 2 having a pushing up part 3; a wippen 12 having a pushed up part 12c and rotating by being pushed up by the pushing up part 3 of the key 2 via the pushed up part 12c in accordance with a key touch; a jack 15 having a pushing up part 15a and moving with the rotating wippen 12; and a hammer 21 provided with a pushed up part 25, rotating by being pushed up by the pushing up part 15a of the moving jack 15 via the pushed up part 25, and striking on a string S. At least one of the pushing up part 3 of the key 2, the pushed up part 12c of the wippen 12, the pushing up part 15a of the jack 15, and the pushed up part 25 of the hammer 21 is comprised of a material having dilatant property. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
