| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily check the operation of the whole electric circuits even in the middle of production of an electronic grand piano. <P>SOLUTION: The electronic grand piano, having a plurality of keys 52, action parts which are driven as the keys 52 are operated, and an electric circuit unit 20 which performs sounding processing according to operations of action parts, is provided with a couple of long-sized slide parts 22 which are fixed in parallel to external edges of the electric circuit unit 20, a couple of guide parts 23 which are provided in parallel at given positions of a musical instrument body so that the slide parts 22 are loosely inserted and support a sounding part slidably on the musical instrument body as the couple of slide parts are loosely inserted, and fixing means (51a, 51b, 70, 72) which fix the electric circuit unit 20 to the musical instrument body at given slide positions of the electric circuit unit 20. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
