| 摘要 |
PROBLEM TO BE SOLVED: To achieve higher storage performance without degrading functionality of a music stand of a keyboard instrument.SOLUTION: A keyboard instrument 1 comprises a main body 10, a lower music plate member 21, an upper music plate member 23, and a connection member J. The lower music plate member 21 is connected to be retractable to a top face of the main body 10 of the keyboard instrument via the connection member. The upper music plate member 23 is composed of a different member from the lower music plate member 21. The connection member J connects the first music plate member and the second music plate member either in a first state (a stretched state) where the lower music plate member 21 and the upper music plate member 23 are separated, or in a second state (a contracted state) where the lower music plate member 21 and the upper music plate 23 are in contact at least partially or closer than in the first state.SELECTED DRAWING: Figure 2 |
