| 摘要 |
<p>PURPOSE:To increase the possibility of performance expression with individual keys by moving an optional key in a direction independent of a direction of movement by key depression along a key support member as an axis. CONSTITUTION:The key 1 moves along the contact part 6 between the key support member 4 and a frame 2 as an axis toward a user, i.e. in the new direction independent of the up-down movement corresponding to the contact part 5 between the key 1 and a key support material 4 as the axis. Then the conditions of the forward-backward movement of the key 1 are determined by a front-rear finger 9 fixed to the key 1 and a front-rear finger receiver 10 fixed to the frame 2. Consequently, the possibility of performance expression with individual keys can be increased.</p> |
