| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard instrument of an electronic piano and a keyboard of the electronic piano. <P>SOLUTION: The keyboard instrument of the electronic piano includes a major support frame 1, an upper support frame 2, a lower support frame 3, white keys 22, black keys 23, electrical conducting rubber 41, a printed board 40, a first lever arm 33, and a second lever arm 34. The major support frame 1 has a stair structure including a first stair 4, a second stair 5, and a third stair 6 being sequentially linked. The upper support frame 2 is positioned at the third stair 6, and the lower support frame 3 is positioned below the first stair 4 and the second stair 5. The white keys 22 and the black keys 23 are positioned on the major support frame 1 and the upper support frame 2 and are linked to the upper support frame 2. The first lever arm 33 and the second lever arm 34 pass through a connection part of the first stair 4 and the second stair 5 and the lower support frame 3 and are linked to the white keys 22 and the black keys 23, respectively. The electrical conductive rubber 41 is stuck on the printed board 40 and positioned below the second stair 5 and the third stair 6. <P>COPYRIGHT: (C)2011,JPO&INPIT |
