Patent ID: 7747297
Filing Date: 2010-06-29
Classification: H04M

Abstract:
1. A personal digital assistant apparatus including a first housing formed with an operation section and a second housing which is freely attached and slides parallel to the operation section from a position overlapped on the operation section side of the first housing, comprising: a slide unit having a base, a pair of guide rails connected to the base, and a rail assembly slideably connected to the pair of guide rails, wherein the base and the pair of guide rails are attached to the first housing and the rail assembly is attached to the second housing, wherein the base comprises a base section, a pair of guide rail stationary sections connected to the pair of guide rails, and a pair of guide rail sections connecting the base section and the pair of guide rail stationary sections, said pair of guide rail stationary sections forming spaced apart spaces between the base section and the pair of guide rail stationary sections, respectively; an energization spring in the first housing and the second housing attachment portion which applies force to the second housing along a direction which maintains a closed state in a closed position overlapping the first housing and the second housing and applies force to the second housing along a direction which maintains an opened state in an opened position when the second housing has been slid from the first housing; the first housing and the second housing are connected by a flexible printed circuit substrate formed in a central area of the terminal apparatus, wherein the flexible printed circuit substrate provides interconnectivity of a plurality of functions of the personal digital assistant apparatus; and the energization spring comprises two energization springs spaced from each other and disposed along a respective lateral track about the flexible printed circuit substrate, wherein each energization spring expands along its respective lateral track and within the spaced apart spaces.