Patent ID: 8186016

Claim:
A hinge device for a mobile device of folding type having a first body being a main body and provided with a first hinge arm formed at one side of an upper end of the first body, and a second body being a cover and provided with a second hinge arm formed at the other side of an upper end of the second body, the second body being rotatable with respect to the first body upwardly or downwardly, the hinge device comprising: a first hinge bracket provided with a first case portion inserted in the first hinge arm, and fixedly mounted to the first body; a second hinge bracket provided with a second case portion inserted in the second hinge arm, and fixedly mounted to the second body; a hinge shaft fitted in the first case portion, inserted in the second case portion, and fixed to the second case portion by an engage unit, the first case portion being rotatable with respect to the second case portion by a predetermined angle through the hinge shaft rotating; a bushing unit disposed between the first case portion and the second case portion, fixed to an interior surface of the first case portion, rotatably inserted in the second case portion, and formed of a stopper portion for limiting a rotating range of the second body to the first body; and a hinge module disposed in the first case portion and transmitting driving torque to the second body through the hinge shaft in a case that the second body rotates.