| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard instrument where a keyboard unit is tightly fixed while bringing the keyboard unit into contact with the cushion material during a musical performance to suppress transmission of vibration to a bottom plate and also fixing the keyboard unit not while the keyboard unit is not in contact with the cushion material to deter pressure from operating on the cushion material during transport. <P>SOLUTION: The keyboard unit 2 can be lifted and fixed while the keyboard is not in contact with the cushion material 3 by threadably engaging a holder fixing bolt 6 with a female screw part 4c. Thus, while pressure is deterred from operating on the cushion material 3, the keyboard unit 3 can tightly be fixed to the bottom plate 4 through a support holder 5. The holder fixing bolt 6 is removed and then the keyboard unit 2 can be mounted on the cushion material 3 with its own weight, so both the members are brought into contact with each other to deter vibration from being transmitted to the bottom plate 4. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
