| 摘要 |
<P>PROBLEM TO BE SOLVED: To make a lid freely separable from a main body so that a keyboard instrument is simplified and that the lid can be used as a music stand during playing. <P>SOLUTION: The keyboard instrument is provided with a main body 50 having a frame for housing a keyboard unit 9 and a control panel 10. The lid 15 covering the top surface of the main body 50 is freely separable from the main body 50. A socket groove 16 to be erected with the separated lid 15 so as to make the lid usable as the music stand is formed in the upper part of the frame of the main body 50. The socket groove 16 is formed between the control panel 10 and a topboard configurating a part of the frame, i.e., a beam member 6. A pin 17 is erected on the beam member 6 and a bore 18 is formed at the lid 15. The pin 17 and the bore 18 are formed in positions where both engage each other in the posture that the main body 50 is covered by the lid 15. <P>COPYRIGHT: (C)2003,JPO |
