Patent ID: 8201782

Claim:
A height adjustable stand comprising: a base comprising a support member protruding therefrom; a connecting member comprising a first surface and a first end frictionally and rotatably connected to the support member; a height extender slidably connected to the connecting member comprising a second surface and an upper connecting end for connecting with a flat panel display device; and a positioning mechanism comprising a plurality of recessed portions formed in one of the first surface and the second surface, and a compressed elastic member slidably received in a receiving hole defined in the other one of the first surface and the second surface, one end of the elastic member being biased to be received in one of the plurality of recessed portions to locate the height extender in a desirable position, wherein a sliding movement of the height extender causes the end of the elastic member to move inward, which allows the end of the elastic member to move from one of the recessed portions to another one; wherein the connecting member further comprises a second end defining a receiving space, the height extender is received in the receiving space, the height extender defines a groove extending along a sliding direction of the sliding movement, the connecting member comprises a stopper protruding from and being inclined relative to the inner surface of the receiving space, the stopper is capable of engaging an end of the groove to stop the sliding movement of the height extender; a plurality of slots are formed in an inner side surface of the support wall and arranged radially around the axle, a side surface of the first end defines an aperture to movably receive the resilient member, one end of the resilient member is received in one of the plurality of slots, each slot is defined by two protruding ridges, and each ridge has a curved cross section.