Patent ID: 8229526

Claim:
A portable device comprising: a first housing; a second housing slidably coupled to the first housing in a predetermined sliding range, the second housing being slidable from one end of the predetermined slidable range to the other end thereof via the middle position thereof; a first coil; a second coil; a first arm connected to the first coil and engaged with the first housing; a second arm connected to the second coil and engaged with the second housing; and a connecting arm connecting the first coil with the second coil, wherein the first, the second and the connecting arms extend generally in the same plane, the first and the second arms being disposed to form acute angles with the connecting arm around the first and the second coils, respectively, wherein the first and second coils are capable of generating reaction forces when the first and second arms are forcibly driven to reduce the angles, and wherein when the second housing is slid from the one end to the middle position of the sliding range, the first and second coils generate the reaction forces by reduction of the angles while the second coil stays in the initial position, and when the second housing is slid from the middle position to the other end of the sliding range, the first and second coils move along the sliding of the second housing.