Patent ID: 8307507

Claim:
A hinge assembly, comprising: a shaft; a first bracket sleeved on the shaft; a second bracket sleeved on the shaft and comprising a connecting end and a receiving portion defined in the connecting end; a spacer sleeved on the shaft and comprising a main body and a resilient area protruding from the main body, wherein the resilient area comprises a top portion and two base portions formed at opposite sides of the top portion thereby connecting the top portion with the main body; and a restricting member sleeved on the shaft, forming a protrusion resisting the top portion of the resilient area; wherein a distance between the two base portions of the resilient area is shorter than a width of the receiving portion, such that the base portions are located between the resilient area and the second bracket facing towards the spacer, the receiving portion situated parallel to the axis of the shaft, thereby preventing the resilient area from rigidly contacting the second bracket; the base portion is a bent region between the top portion and the main body, such that the hinge assembly is capable of self-locking when the protrusion slides from one base portion to the other base portion via the top portion.