| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a keyboard device of which manufacturing cost is low and maintenance cost is also reduced. SOLUTION: A keyboard 12 is not directly extended to an action 24 and is sufficiently short. An action lever 14, which transmits the key pushing operation of the keyboard 12 to the action 24 side, is arranged so that one end side of the lever 14 is abutted to the keyboard 12 from the bottom. The other end side is abutted to a wipper 26 of the action 24 and the lever 14 is sufficiently shorter than a conventional one. Since the overall length is short, it is difficult to generate distorsion even though they are used for a long period and the required maintenance is reduced. Note that all keyboards 12 and all levers 14 are formed in a same shape, the levers 14 are tilted against the longitudinal direction of the keyboards 12, the actions 24 and the keyboards 12 are connected, no three long dies are required to manufacture the keyboards 12 and the levers 14 with synthetic resin and only two dies, which are short and have linear and simple shape, are required. Thus, the production cost is low.</p> |
