| 摘要 |
<p>A keyboard of pianos and similar key instruments comprises a keyboard frame (10) and a plurality of key arms which are mounted on bearing means (17, 19, 20) in the keyboard frame in such a way that the key arms only can swing in a plane that is perpendicular to the plane of the keyboard frame. The keyboard frame (10) consists of metal and a vibration absorbing material (14-16) is arranged between the bearing means (17, 19, 20) on the key arms (18) and the keyboard frame (10). This will make the manufacture of the keyboard cheaper and reduce the need of readjustments of the keyboard. The vibration absorbing material is provided in grooves (11-13) in the key board frame, and the bearing means, which can consist of pins (17, 19, 20), are fastened in the vibration absorbing material.</p> |
