| 摘要 |
PROBLEM TO BE SOLVED: To provide a small sized keyboard device capable of increasing radius of rotation of a key without size increase of the keyboard device with a good touch feeling.SOLUTION: The keyboard device comprises: keys 20 which are rotatably operated by key touch; a switch 72 for detecting rotary operation of the keys 20; and a frame 30 for supporting the keys 20. The keys 20 are supported by the frame 30 via a bearing, and the bearing is formed of an inner ring and an outer ring which are arc shape, and a strip-shaped holder 51 storing a rolling body (ball) 52. A center C of the arc is disposed on outside of the keys 20 in a rear direction of the keys 20, the inner ring (inner ring part) 24 is formed on a rear end of the keys 20, and the outer ring (outer ring part) 31 is formed on a rear end of the frame 30. |
