Patent ID: 8313074

Claim:
A support stand for a flat-panel display monitor, comprising: a base member; an elevating mechanism positioned on the base member, comprising: a support bracket including a base portion; an elevating member slidably connected to the support bracket, the elevating member comprising a base wall and a receiving portion extending from a middle portion of a top end of the base wall at an edge of the top end; the receiving portion and the base wall cooperatively defining a receiving chamber, the base wall defining a connecting groove communicating with the receiving chamber and positioned adjacent to the top end of the base wall along a direction parallel to the edge of top end of the base wall and perpendicular to a sliding direction of the elevating member; a pair of guiding members fixed on the support bracket, each guiding member comprising a guiding surface, wherein a distance between the guiding surfaces decreases from an upper end to a lower end of each guiding member; two protecting members slidably connected to opposite sides of the elevating member and partially received in two ends of the receiving chamber of the elevating member; two pivot shafts passing through the connecting groove of the elevating member and assembled with the two protecting members, the pivot shafts being slidable along the connecting groove; a pair of rollable members rotatably received in the two protecting members via the two pivot shafts, respectively, and positioned between the pair of guiding members, to move along the guiding surfaces downwards and upwards; and a resilient member received in the receiving chamber and positioned between the pair of protecting members, with opposite ends of the resilient member abutting the two protecting members for pushing the rollable members to press the guiding surfaces, such that a supporting force is created by the guiding surfaces of the two guiding members upwardly for maintaining the elevating member together with the flat-panel display monitor to be remaining at a predetermined position, and a friction is created between the guiding surfaces and the rollable members for preventing the elevating member together with the flat-panel display monitor from being dropped; wherein, when the elevating member moves downwards, the rollable members rotate along the guiding surface of the guiding member and slide close to each other along the connecting groove of the elevating member.