| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide keys of an electronic musical instrument which respectively form connection faces between an upper face and a side face, the upper face and a front face, and the side face and the front face, and can improve appearance by configuring the connection faces with a face formed with an uneven pattern or a mirror face. <P>SOLUTION: On an upper face portion 21, a side face portion 22 and a front face portion 23 of a key top portion 20 in a black key, an upper face pattern portion 26 made by linear projecting portions 26a, a side face pattern portion 27 made by linear projecting portions 27a and a front face pattern portion 28 made by linear projecting portions 28a are respectively formed. Connection faces 24a, 24b and 24c and angle face portions 25a and 25b are respectively formed between the upper face portion 21 and the side face portion 22, the upper face portion 21 and the front face portion 23, and the side face portion 22 and the front face portion 23. On the surfaces of the connection faces 24a, 24b and 24c and the angle face portions 25a and 25b, a connection face pattern portion 27 made by a plurality of minute projecting portions 29a is formed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
