| 摘要 |
A keyboard apparatus constructed to be capable of reducing the depth size thereof and permitting a key unit (UNIT) to be mounted to a key frame (10) with a simple operation. Hinges are extended downward from rear ends of black key main bodies of a black key unit in the vertical direction, and are connected at their lower ends to a common-to-black-keys base end. The black key main bodies are pivotable via the hinges relative to the common-to-black-keys base end in the key depression/release direction. Similarly, white key main bodies of first and second white key units are pivotable via hinges relative to a common base end in the vertical direction. The key frame (10) is formed at its rear portion (10a) with a recessed groove (15) over the entire width of all keys and formed with elastic members extending in the front-to-rear direction on the front and rear sides of the recessed groove (15). Using elastic deformations of the elastic members, a common-to-all-keys base end (20) of the key unit is fitted and fixed to the recessed groove (15). |
