| 摘要 |
A hinge with an elevating function is mounted between a top panel and a bottom panel of an expansion pad and has a lower pivot bracket assembly, a pivoting arm assembly, an upper pivot bracket assembly and a top pivoting assembly. The lower pivot bracket assembly is mounted securely on the bottom panel. The pivoting arm assembly has an upper end and a lower end. The lower end of the pivoting arm assembly is mounted pivotally on the lower pivot bracket assembly. The upper pivot bracket assembly is mounted pivotally on the upper end of the pivoting arm assembly. The top pivoting assembly is attached securely to the top panel and is mounted pivotally on the upper pivot bracket assembly to allow the top panel to be moved up and down and to be pivoted relative to the bottom panel. Consequently, the operating height and angle are adjustable.
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