String-striking device piano

摘要

PROBLEM TO BE SOLVED: To provide a keystroke device of a piano in which an adjusting range of static loading applied to the playing side tip of a key is made wider.;SOLUTION: The keystroke device of a piano is located at the top section of a key 21 and has a first weight lever 31 which is placed close to an action section 25 and rotates in conjunction with the motion of the key 21 and a second weight lever 41 which is placed on the top section of the first weight lever 31 and rotates with the motion of the first weight lever 31. Since the second weight lever 41 is placed away from the action section 25, the degree of freedom in the shape and the arrangement is made greater for the second weight lever 41 and as a result, the adjusting range of static loading applied to the playing side tip of the key 21 is made wider.;COPYRIGHT: (C)2005,JPO&NCIPI