Patent ID: 7255317

Claim:
An adjustable support structure for a panel computer comprising: a cradle having a pivot portion at a front section of its surface and a slide slot at a middle section, at least two fastening slots placed at a bottom surface of the slide slot, and at least two pairs of positioning holes separately corresponding to the fastening slots are placed on two side walls of the slide slot; a back support comprising a binding portion at a bottom end pivoted to the pivot portion of the cradle, a panel support at a front side and two pivot holes disposed at a back side; and a support prop having a rotating shaft at a front end, a positioning tab at two sides of a back end, and an elastic unit at a middle section, the rotating shaft pivoted in the pivot holes of the back support, each positioning tab connected to the elastic unit, the elastic unit providing a predetermined flexible force to force the two positioning tabs to protrude out of the support prop, the elastic unit capable of being pressed to force the two positioning tabs to engage with the support prop; wherein, the back end of the support prop is capable of being pushed against one of the fastening slots of the slide slot, and the two positioning tabs are capable of being inserted into one pair of the positioning holes.