Patent ID: 7665184
Filing Date: 2010-02-23
Classification: E05D,E05F,E05Y,H04M,Y10T

Abstract:
1. A hinge assembly for joining a flip cover to a main body of a foldable electronic device, comprising: a shaft comprising a securing portion formed at one end thereof; a follower connecting with the shaft; a substantially cylindrical cam defining a cam hole extending therethrough, the cam hole receiving the shaft therethrough; a washer mounted with the shaft; a rolling means disposed between the washer and the cam and movably touching one of the washer and the cam; and an urging means, wherein the urging means is retained in such a manner that the cam is rotatably and slidably engaged with the follower under force of the urging means and the washer is non-slidable relative to the cam along the shaft under force of the urging means.