| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a collapsible keyboard input device which can cover the cut parts of its both divided portions that are exposed when the keyboard is folded, can prevent the entering dust and waterdrops and also can withstand the external shocks. SOLUTION: At least one of two keyboards 5 and 6 which are divided at a dividing position is supported on a support plate 10 in a freely sliding way, and both keyboards 5 and 6 are turnably connected to both sides of a back plate 7 directly or via the plate 10. When the keyboard 5 is slid in the direction apart from the dividing position, the keyboards 5 and 6 can be folded with both ends of the plate 7 defined as the centers of turning. When the keyboards 5 and 6 are folded and stored, the plate 7 covers the cut faces of both keyboards 5 and 6 like a backbone of a book to prevent the dust and waterdrops from entering the keyboards. The best hard material can be used to the plate 7 to obtain a collapsible keyboard input device which is highly resistant to the external shocks and also excels in durability.</p> |
