| 摘要 |
An adjustable device includes a first disk (11) on the first stand (10) to have a finger hole (102) to movably receive therein a finger (12), a second disk (21) mounted on the second stand (20) and having multiple adjusting holes (23,24,25,26,27) to allow an extension of the finger (12) and a sliding plate (13) sandwiched between the first disk (11) and the second disk (21) and movable between a first position where the finger (12) is detachably engaged with the sliding plate (13) and a second position where the finger (12) is separated from the sliding plate (13) and is received in a very last adjusting hole of the second disk (21), in which a relative angle between the first stand (10) and the second stand (20) is maximum. The device is disclosed for use in a stand or support for a musical keyboard. |
