| 摘要 |
<p>A keyboard is for an accordion on the treble side with, e.g. five rows. The outer arm of the key in the main rows (e.g. the first and second) is connected via a slide-rod with a corresponding higher arm in corresponding repetition rows (e.g. 4th and 5th). The lifting rods are under spring action so that in the upper position the accordion openings are held closed. A spring (17) pulls the main arm (5). The repetition key arm (8) together is arranged between them at a position between the pivots (2, 9) and the rod pivots (13, 14). The arrangement results in a considerable reduction in noise in the operation of the keys.</p> |
