Patent ID: 8402609

Claim:
A self-lock hinge comprising: a resilient sleeve having an extending wing; and a tubular body protruding from a side edge of the extending wing and having a proximal edge connected to the side edge of the extending wing; a distal edge; a slit formed between the proximal and distal edges; and a positioning protrusion formed on an inside wall of the tubular body and formed by recessing from an outside wall of the tubular body; a pintle connected to the tubular body of the resilient sleeve and having a rod mounted rotatably through the tubular body and having an outside wall rubbing against the positioning protrusion of the tubular body; and a flat wall formed on the outside wall of the rod and selectively abutting against the positioning protrusion of the tubular body; and a fastening segment protruding longitudinally from an end of the rod; and an outer sleeve having a fastening wing attached to the extending wing of the resilient sleeve; and a tubular body protruding from a side edge of the fastening wing and mounted tightly around the tubular body of the resilient sleeve.