| 摘要 |
PROBLEM TO BE SOLVED: To give key touch feeling more similar to that of a hand keyboard of a pipe organ. SOLUTION: A magnet 22 is mounted on the rear end part of a key 10 of this keyboard device through a holding member 21. A magnet 23 is arranged on the position opposite to the magnet 22, when the key 10 is on the rest position, and in this state, both magnets 22, 23 are in the adhering state. The magnet 23 is mounted on a support plate 11 through a plate spring 24, and when the front end of the key 10 is pressed down by a performer, the rear end of the key 10 is raised. At that time, the magnet 22 raised following the rear end of the key 10 and the magnet 23 are raised in the adhering state, until the key 10 reaches a roughly middle position of the stroke. Therefore, the plate spring 24 on which the magnet 23 is mounted is warped upward, and a force to return back is transferred to the key 10 through the magnet 22. Namely, a force of repulsion against a force to press down the key 10 by the performer is applied on the key 10. |
