Patent ID: 7322656

Claim:
A leg support structure of a computer desk capable of synchronous sliding movement, comprising: a stand having an inverse U-shape, wherein the stand comprises an arcing groove formed at each midsection of two suspending portions thereof; a leg pad having a planar configuration, wherein the leg pad comprises a lower pivot opening and an upper pivot opening formed on each lateral side of the leg pad, a lower pivot is positioned through the lower pivot openings of the leg pad in order to pivot the leg pad about a support located at a center of the two arcing grooves; two L-shaped prop stands, each having a horizontal side and a vertical side, wherein the horizontal sides of the two L-shaped prop stands are engaged to an underside of a top portion of the stand by a retaining sleeve, the horizontal sides are joined to a slider at ends thereof for a placement of a keyboard ; and two sliding collars having outer portions, each engaged over the vertical sides of the two L-shaped prop stands, wherein holes are formed at the outer portions of the sliding collars, an upper pivot passes through each of said holes to join with a pulley and then subsequently through a corresponding one of the upper pivot openings to pivot the two sliding collars to the upper pivot openings of the leg pad; whereby outward sliding movement of the slider upon experiencing an external force actuates the L-shaped prop stands to cause movement of the sliding collars and to cause the pulley to slide downwards in the arcing grooves, subjecting the leg pad to be overturned and extended.