| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard device for an electronic keyboard musical instrument which is reducible in manufacture cost and assembly precision by decreasing the number of components and the assembly man-hour relating to a hammer rail supporting a hammer. SOLUTION: This keyboard device for the electronic keyboard musical instrument comprises a chassis 2, the hammer rail 21 which is composed of an extrusion forming of aluminum and coupled with the chassis 2, keyboards 3 which are supported rotatably on the chassis 2, hammers 4 which are provided by those keyboards 3 and supported freely rotatably on the hammer rail 21 and rotate as the corresponding keyboards 3 are pressed, and a stopper 14 which is fitted to the hammer rail 21 and restricts the rotation of the hammers 4 as the keyboards are touched. |
