| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an action of piano which can prevent the electrostatic charging of action parts using synthetic resins, thereby preventing the contamination by the pickup of dust in the air by static electricity. SOLUTION: This action 5 of piano comprises a plurality of action parts including a hammer 7 connected to each other, act by accompanying the key touch of keyboards 9 and strikes strings by turning of the hammers 1. At least one 6, 8, 14 and 17 among the plural action parts are composed of the synthetic resins having electrical conductivity on at least their surfaces.</p> |
