| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard structure that requires no special shape for common supports with which a plurality of keys are linked but permits easy and reliable adjustment of only irregular keys.SOLUTION: When common white key supports 5 and 8 are superposed one over the other and together fixed with a fastening member 14 by arranging white keys 7 of a second white key unit 2 between a plurality of white keys 4 in a first white key unit 1 out of the first and second white key units 1 and 2 and a black key unit 3, irregular white keys 4 and 7 can be individually displaced by selecting one or another of first to third array adjusting members 15 to 17, arranging the selected one of the first to third array adjusting members 15 to 17 on the part of a support 5 corresponding to the irregular white keys 4 and 7, and suppressing the selected one of the first to third array adjusting members 15 to 17 with the squeezing force of the fastening member 14, thereby to easily and reliably adjust the irregularity of the white keys 4 and 7. |
