Patent ID: 8056187

Claim:
A hinge assembly, comprising: a shaft; a cam non-rotatably sleeved on the shaft; a cam follower sleeved on the shaft and rotatable engaging with the cam; a first elastic member sleeved on the shaft, and one end of the first elastic member resisting against the cam follower for providing an elastic force to the cam follower along an axis of the shaft; a first sleeve sleeved on the shaft, and non-rotatably connected to the cam follower; a second sleeve sleeved on the shaft, and non-rotatably connected to the cam; a second elastic member sleeved on the shaft, and configured for producing an elastic force for driving the first sleeve to rotate relative to the second sleeve; and a controlling member pressably sleeved on the shaft and abutting one of the cam and cam follower to drive the cam to disengage from the cam follower.