Patent ID: 8627546

Claim:
A hinge mechanism, comprising: a first rotation assembly comprising a first pivoting shaft and a first bracket sleeved on the first pivoting shaft, the first bracket comprising an engaging portion eccentrically formed on one end of the first bracket; a second rotation assembly substantially parallel to the first rotation assembly and comprising a second pivoting shaft and a second bracket sleeved on the second pivoting shaft, the second bracket comprising an engaging portion eccentrically formed on one end of the second bracket; a first connection member comprising two pivotal portions, wherein one pivotal portion is rotatably connected to the engaging portion of the first bracket, and the other pivotal portion is rotatably connected to the engaging portion of the second bracket; and a second connection member sleeved on the first pivoting shaft and the second pivoting shaft, wherein the first pivoting shaft comprises a fixing portion, a flange, and a non-circular shaft portion, the fixing portion is non-rotatably connected with the first bracket, and the flange resists the second connection member; the second pivoting shaft comprises a fixing portion, a flange, and a non-circular shaft portion, the fixing portion of the second pivoting shaft is non-rotatably connected with the second bracket, and the flange of the second pivoting shaft resists the second connection member.