| 摘要 |
PURPOSE:To actualize key scaling on the electronic keyboard musical instrument with a touch feeling by simple, low-cost structure. CONSTITUTION:The keyboard device for the electronic musical instrument has a key return spring 13 which has its end locked to a key support member 3 and its other end locked to a key 1. The return force from the key return spring 13 varies by shifting the position of the lock part 17 of the key return spring 13 to the key 1, and the key scaling with the touch feeling is enabled. Further, the key support member 3 and the lock part 3c of key return spring 13 are changed in position, which is combined with the position shift of the lock part 17 to reduce the cost. |
