Patent ID: 7640043
Filing Date: 2009-12-29
Classification: H04M

Abstract:
1. A foldable portable electric device having an upper unit and a lower unit, comprising: a hinge structure which allows said upper unit and said lower unit to move around at least a first axis for folding and unfolding said units and a second axis which is substantially perpendicular to said first axis and is arranged on one side of a folded face of one of said units, and a scraping prevention mechanism which has two extensions being formed at two corners of the other side of said folded face of one of said units and two undercuts being formed on the other unit so as to engage with said extensions respectively while folded, wherein the other unit moves around said second axis in a parallel direction to said folded face of the one of said units, and wherein said scraping prevention mechanism prevents said units from moving around said second axis by a portion of the other unit that is located between said extensions when said foldable portable electric device is in the folded position.