| 摘要 |
A keyboard support bracket structure fastened to a underside of a desktop and movable horizontally and vertically relative to the desktop to a desired position for keyboard operation consists of a mounting bracket fastening to the desktop, an upper arm pivotally engaged with the mounting bracket through a first axle, a side arm pivotally coupled on two sides of the mounting bracket through a second axle, and a holding bracket pivotally engaged with the upper arm through a third axle. By releasing the constrained position of the holding bracket and the brake element of the side arm, the first, second, and third axles may be moved to perform vertical adjustment endlessly. The keyboard support structure thus made uses a fewer number of elements and may be moved with less effort to facilitate keyboard operation and conform to ergonomics.
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