Patent ID: 7856256
Filing Date: 2010-12-21
Classification: H04M

Abstract:
1. A foldable portable terminal device comprising: a first housing including at least a speaker and a speaker sound hole; a second housing; and a hinge unit that couples the first housing and the second housing rotatably, the hinge unit including a coupling unit that couples the first housing and the second housing, a first rotary shaft that rotates the first housing and the second housing in a folding/unfolding direction, and a second rotary shaft that perpendicularly intersects with the first rotary shaft, wherein in a folded state in which the first housing is overlaid on the second housing with the speaker sound hole provided for the first housing facing inside, a gap is formed between the speaker sound hole of the first housing and the second housing by coupling the first housing and the hinge unit at a position at which a midpoint of the first housing in a thickness direction is displaced from a center of the second rotary shaft of the hinge unit, and by coupling the first rotary shaft of the hinge unit and the first housing at a position closer to a surface provided with the speaker sound hole than a midpoint of the first housing in a thickness direction of the first housing, the gap between the speaker sound hole of the first housing and the second housing formed in the folded state in which the first housing is overlaid on the second housing with the speaker sound hole provided for the first housing facing inside becomes greater than the gap between the speaker sound hole of the first housing and second housing formed in the folded state in which the first housing is overlaid on the second housing with the speaker sound hole provided for the first housing facing outside.