| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic keyboard musical instrument capable of reducing the thickness and depth size of a fallboard and the height of an instrument main body respectively, preventing a panel part from appearing upon non-playing, and improving the visibility of the panel part upon playing. <P>SOLUTION: The panel part 30 is freely rotatably arranged around a rotation shaft 31 in the instrument main body 100. A fallboard unit UNT can be shifted between a fallboard-closing state and a fallboard-storing state. The panel part 30 is rotatively driven in the rising direction by a J-shaped linkage member 40 via a unit holder 50 in conjugation with the movement to the back side of the fallboard unit UNT. On the fallboard-closing state, the fallboard unit UNT shields the upper side of a keyboard part KB and the inside of the instrument main body 100 for the player side. On the other hand, on the fallboard-storing state, the fallboard unit UNT opens the keyboard part KB to permit the playing, opens the inside of the instrument main body 100 for the player side, and also opens the erected panel part 30 for the player side. <P>COPYRIGHT: (C)2007,JPO&INPIT |
