Patent ID: 7752711

Claim:
A hinge comprising: a bracket assembly having two tilting brackets, and each tilting bracket having a mounting wing having a side edge; an elongated hole being formed through the mounting wing; and a mounting hole being formed through the mounting wing and being adjacent to the elongated hole; and a connecting wing being formed on and protruding from the side edge of the mounting wing and having an abutting surface being connected to the side edge of the mounting wing; a tilting assembly being connected to the bracket assembly and comprising a central frame being mounted between tilting brackets and having a first side; a second side being opposite to the first side; a first end; a second end being opposite to the first end and adjacent to the first and second sides two tilting shafts being formed respectively on and protruding transversely from the first and second ends of the central frame and being mounted respectively and movably through the elongated holes of the tilting brackets; two linking assemblies being connected respectively to the tilting shafts and the mounting wings, and each linking assembly corresponding to one tilting shaft and the mounting wing of one tilting bracket and having an actuating seat being mounted around the corresponding tilting shaft and having a proximal edge; a holding seat being formed on and protruding out from the proximal edge of the actuating seat and protruding into and selectively sliding in the mounting hole of the mounting wing of the corresponding tilting bracket; and a resilient element being mounted in the mounting hole of the mounting wing of the corresponding tilting bracket and pressing against the holding seat; and two actuating washers being respectively mounted securely around the tilting shafts, and each actuating washer corresponding to one tilting shaft and the connecting wing of one tilting bracket and having an abutting edge being curved and selectively abutting the abutting surface of the connecting wing of the corresponding tilting bracket to lift up the actuating seat, the holding seat and the corresponding tilting shaft; and a rotating assembly being connected to the tilting assembly and comprising a rotating shaft being longitudinally mounted rotatably through the central frame and protruding through the second side of the central frame.