US Patent 7895711 Hinge and collapsible device utilizing the same

A hinge includes a first connecting member, a second connecting member, a sleeve, a shaft fixed to the first connecting member, a clamping member, and a fastening member. The sleeve is fixed to the second connecting member, and axially defines an opening. The shaft includes a fixing rod rotatably received in the sleeve, and the clamping member adjustably clamps the sleeve to adjustably clamp the fixing rod. The fastening member is configured for adjustably tightening the clamping member to allow squeezing or expansion of the sleeve to make the sleeve adjustably clamp the fixing rod.