Patent ID: 7082289
Filing Date: 2006-07-25
Classification: E05F,E05Y,H04M

Abstract:
1. A folder driving device for a portable device, comprising: first and second shaft support parts formed at one end of a body element of the portable device, wherein said first and second shaft support parts are spaced apart from each other by a predetermined distance and opened at their respective ends facing to each other; a cylindrical hinge housing connected to a folder of the portable device, wherein said cylindrical hinge housing is positioned between the first and second shaft support parts and opened at both ends thereof; a hinge cam coupled to the second shaft support part in the hinge housing in a manner such that it is prevented from being rotated and allowed to be moved in an axial direction, the hinge cam is integrally and projectedly formed, at its one axial end surface, with an elongate rod portion coupled to the second shaft support part; a hinge shaft placed in the hinge housing and cooperating with the hinge cam to determine folder opening and closing positions; an elastic member placed between the hinge cam and the hinge housing to apply elastic force to the hinge cam for biasing the hinge cam against the hinge shaft; and driving means for transmitting rotation force to the hinge shaft.