Patent ID: 7165291
Filing Date: 2007-01-23
Classification: E05D,E05Y,G06F,H04M,Y10T

Abstract:
1. A hinge assembly for interconnecting a main body and a cover of a portable electronic device, comprising: a hinge housing rotatably attached to the main body, and defining a first engaging hole and a second engaging hole perpendicular to the first engaging hole: a first hinge apparatus contained in the first engaging hole for enabling the cover to open relative to the main body; and a second hinge apparatus contained in the second engaging hole, for enabling the cover to rotate about an axis perpendicular to the hinge housing after the cover is opened relative to the main body; wherein the first hinge apparatus comprises a mandrel with a first spring member disposed therearound, a cam biased by the first spring member, a cam follower, two roller bearings rotatably set between the cam and the cam follower, an orientation pin connecting the cam and the mandrel together, and a sleeve containing the mandrel, the first spring member, the cam follower and the two roller bearings therein, and the cam and the cam follower receive the mandrel therethrough, the sleeve is received in the hinge housing, and the cam is disposed outside of the sleeve and is adapted to be fixed to the main body.