| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard capable of expanding a size thereof through a folding structure while preventing an increase of the overall thickness when folded.SOLUTION: A foldable keyboard is configured with a guide portion 302 having a long hole formed long along the longitudinal direction, two keyboard pieces (Piece) 300a and 300b joined by mutually different hinge portions 301 to the guide portion so as to spread out to the right and left in the parallel direction to a keyboard surface. In an expanded state, the end portions of two keyboard pieces facing each other are brought into close contact by sliding the hinge portions along the long holes while the directions of each of the keyboard pieces are inverted each other. |
