Patent ID: 6941618

Claim:
A hinge device of a portable wireless terminal which includes a first housing and a second housing, the terminal having a first hinge axis extending parallel to an upper surface of the first housing, the second housing being coupled to the first housing in such a manner that the second housing is moveable towards and away from the first housing about the first hinge axis, the terminal further having a second hinge axis extending perpendicular to the upper surface of the first housing, the second hinge axis providing a rotational center for the first hinge axis, the first and second hinge axes acting as rotational axes of the second housing when the second housing rotates with respect to the first housing, the binge device comprising: a first hinge module including a first hinge base fixedly coupled to the first housing, and a second hinge base rotatably coupled to the first hinge base in opposition to the first hinge base so as to be rotated about the second hinge axis, and a cylindrical rotary hinge housing fixed to an inner portion of the second hinge base; and a second hinge module fixed to the second housing, connected to the second hinge base through the cylindrical rotary hinge housing and connecting the second housing to the second hinge base in order to allow the second housing to rotate about the first hinge axis.