Hinge mechanism for a portable telephone

摘要

A hinge mechanism for pivotally connecting first and second housings of a portable electronic device for movement between closed and open positions, the mechanism comprising a hinge shaft mounted for rotation with the first housing and providing a camming surface, and resilient means mounted for rotation with the second housing and arranged to cooperate with the camming surface so as to vary loading of the resilient means on the camming surface for relative rotation therebetween.