Patent ID: 7447309

Claim:
A hinge mechanism for rotatably coupling a flip element to a body portion of an electronic device, comprising: a pivot member provided at an end of the flip element with a pair of shafts at opposite ends thereof; a retaining member disposed in the body portion, the retaining member having a pair of abutments on opposite sides thereof for the pivot member riding thereon, a pair of first grooves being defined in the bottom surfaces of the abutments to receive the shafts, first ladderlike rims being formed along edges of the retaining member; and a cover having a pair of shoulders on opposite sides thereof and a rear wall joining the shoulders, a pair of second grooves being defined in the top surfaces of the shoulders, second ladderlike rims being formed along edges of the cover, the first and the second ladderlike rims being engaged to secure the cover on the retaining member and the first and the second grooves being aligned to define shaft holes for the shafts rotating therein.