Patent ID: 7861377

Claim:
An abrasion-enhanced hinge comprising: a pintle having a proximal end and a distal end; a washer assembly being mounted around the pintle and comprising multiple stationary washers rotatably mounted on the pintle and being connected securely to each other in sequence, and each stationary washer has an annular edge; two fastening protrusions being formed longitudinally on and protruding out from the annular edge of the stationary washer; and two fastening detents being formed transversely in the annular edge of the stationary washer and respectively engaged by the fastening protrusions of an adjacent stationary washer; and multiple rotating washers being non-rotatably and slidably mounted around the pintle, wherein the stationary and rotating washers are mounted interlacedly around the pintle; a stationary leaf being connected to the washer assembly and having a mounting panel being formed perpendicularly on the stationary leaf, and being mounted around the pintle, the mounting panel having two fastening detents and respectively engaged by the fasting protrusions on the nearest stationary washer; and a fastener mounted securely around the distal end of the pintle.