Patent attributes
A portable information apparatus is provided. The portable information apparatus includes a first chassis, a second chassis and a hinge device. The hinge device includes a set of outer shell members disposed side-by-side along an arrangement direction of the first chassis and the second chassis and is respectively equipped with hollow parts, a set of inner shell members each of which is disposed so as to stride over a boundary at least between lower faces of the mutually adjacent outer shell members in the hollow parts of the mutually adjacent outer shell members, a first coupling section which couples each inner shell member and one of the mutually adjacent outer shell members together and a second coupling section which couples each inner shell member and the other of the mutually adjacent outer shell members together.