Patent ID: 8069534

Claim:
A hinge assembly, comprising: a shaft; a first leaf non-rotatably mounted on the shaft and defining a limiting arced slot; a rotatable joint rotatably mounted on the shaft; a tab washer sleeved on the shaft, and non-rotatably assembled with the rotatable joint; the tab washer comprising a first bent tab slidably engaged in the limiting arced slot of the first leaf to restrict an amount that the rotatable joint and the first leaf capable of rotating relative to each other; a positioning member comprising an engaging surface, and non-rotatably assembled to the rotatable joint; an elastic engaging member comprising an engaging surface, and non-rotatably sleeved on the shaft; and a fastening member engaged on the shaft; wherein one of the engaging surfaces of the positioning member and the engaging member forms an engaging protrusion, and the other one of the engaging surfaces of the positioning member and the engaging member defines an engaging slot engaging with the engaging protrusion.