| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a collapsible keyboard for arranging respective keyboard units in a desired operation state by extremely simple operation after relating a folded state of the two keyboard units. <P>SOLUTION: A first key unit 37 of the first keyboard unit 3 is rotatably arranged on a first baseplate 5. A second key unit 47 of the second keyboard unit 4 is rotatably arranged on a second baseplate 8. A gear tooth 43 formed on a circular arc surface 42 of a first gear member 44 arranged on one side of a first support plate 6 is meshed with a gear tooth part 21 of a sliding member 22 slidably inserted into and fitted to a support shaft 19. A gear tooth 53 formed on a circular arc surface 52 of a gear member 54 arranged on one side of a second support plate 9 is constituted so as to mesh with the gear tooth part 21 of the sliding member 22. <P>COPYRIGHT: (C)2004,JPO</p> |
