| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a keyboard storage device which is stored under a top plate when it is not used, ascends to this side of the top plate when it is used, is not provided with a special driving source but with only a mechanical function, whose structure is made simple as much as possible, whose cost is reduced and whose storage and drawing operations are made smooth. SOLUTION: The device is provided with a rail 2 fixed to the lower face of the top plate 1, a moving body 4 provided with a roller 3 moving in the rail 2, an installation stand 6 installing the keyboard 5, an upper link body 7 and a lower link body 8, which are pivotally fitted to the moving body 4, and the installation stand 5. In such a case, a guide member 10 where a guide groove 9 is formed by etching under the top plate 1 and a locking member 12 having a locking groove 11 are fixed. An engaged pin which is engaged by sliding a sliding pin sliding in the locking groove 11 and the locking groove 11 is provided on the upper link body 7.</p> |
