| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a thin sheet shaped object such as a paper sheet from entering a case body through a clearance of the decoration plate and the fallboard of a keyboard instrument. SOLUTION: This keyboard instrument is provided with a keyboard 2 where plural keys are arranged side by side, with the case body for housing the keyboard device 2 and with a fallboard 3 to move back and forth on the keyboard device 2 to open and close a keyboard and to be housed inside the case body at the time of using the keyboard, wherein the fallboard 3 is equipped with a stopper 15 with an almost U shaped cross section having a folded-over part on the front side at the upper part of the rear end of the fallboard 3.</p> |
