Patent ID: 7986522

Claim:
A portable terminal device in which a first housing is coupled to a second housing such that the first housing and the second housing can be opened and closed to be an opened state and a closed state, wherein the first housing comprises: a display portion provided on a first face facing the second housing in the closed state; and a projecting portion at an end portion of the first face, wherein the second housing comprises: a main key provided on a second face facing the first housing in the closed state; and a notched portion which is provided on an end portion of the second housing, and in which the projecting portion is arranged such that the projecting portion is rotatably coupled to inside of the notched portion, wherein a switch is provided inside the projecting portion and a sub-key capable of depressing the switch is provided to the projecting portion, wherein the sub-key is provided on a surface of the projecting portion such that a depression direction of the sub-key coincides with a depression direction of the main key in the opened state and the sub-key does not protrude out from a plane defined by the second housing in the closed state, wherein a positional relationship between the projecting portion and the first face is constant between the opened state and the closed state, wherein the projecting portion projects in a direction intersecting, the first face of the first housing at an inside part of the first housing in a width direction of the first housing, wherein a portion of the surface of the projecting portion, on which the sub-key is provided, is formed in a flat face, and wherein when in the open state the flat face is arranged substantially parallel to the second face and arranged on a substantially same surface as the second face.