| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard device performing good simulation of, even when the number of types of mass body is reduced, the key touch of a piano that varies in accordance with the key region. <P>SOLUTION: A key frame 20 is arranged under a plurality of keys 10 and supports the rear edge part of each of the plurality of keys 10 so that the front part of each of the plurality of keys 10 swings up and down. A swing lever 40 including a mass body 42 corresponding to each of the plurality of keys 10 is supported by the key frame 20, is displaced in linkage with the swing of the plurality of keys 10, and imparts reaction force against key push. A plurality of switches 61 respectively corresponding to the plurality of keys are fixed to the key frame and driven to operate by key push of the plurality of keys 10. The mass of a plurality of mass bodies 42 is made different by each key or key region, and the reaction force of the plurality of switches 61 against the key push of the plurality of keys is made different for each key or key region. <P>COPYRIGHT: (C)2009,JPO&INPIT |
