| 摘要 |
<p>A treble box of an accordion made of a hollow housing (1) containing a tone chamber (1'), which is open at one side (2) and intended to be connected with the bellows and on the opposite side it is partially covered by a grille (3) and behind it there is a keyboard assembly (4) with keys (5), whereat the chamber (1') contains a treble reed blocks board (6) dividing the chamber (1') between the bellows and the grille (3) and having reeds (7) arranged on said board and the treble reed blocks board (6) can be perpendicularly curved, so that on the curved section (6') there is enough room for up to two additional blocks of reeds (7) lying at an angle to the rest of the reeds (7), so that the keyboard assembly (4) is thicker in a way that its rear wall (8) is concave to form an empty space (11) in the keyboard assembly (4), said empty space being open into the tone chamber (1').</p> |
