| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve expressiveness with increased performance modes, by outputting a signal with keyboard playing, from a front key side in key-releasing time, to the rear side of continuous playing, as in glissando. <P>SOLUTION: A white key body 27 and a black key body 28 are turned freely in the key-pressing direction with common base end sections 21, 22 and 23 as key support points via hinge sections 24, 25 and 26 which are extended downward vertically, and displaced in front/backward directions via bending of the hinge sections 24, 25 and 26. A touch control sensor 32 is provided between each of back end faces 27b and 28b of the key bodies 27 and 28, and a sensor support section 13. When the key bodies 27 and 28 are energized backward in key-releasing state, its playing and the degree (strength) of manipulation are detected by the touch control sensor 32. The front-end section 27c of the white key body 27 has a form of a convex shape with a horizontal center section that is projected ahead, in a plan view. <P>COPYRIGHT: (C)2008,JPO&INPIT |
