Patent ID: 8243439

Claim:
A sliding opening and closing device for a portable terminal, comprising: a first plate coupled to one of a main body and a display body of the portable terminal; a second plate slidably coupled to the first plate, the second plate being coupled to the other of the main body and the display body; a cam profile formed at the first plate along a sliding direction of the second plate; an elastic module mounted on the second plate, one end of the elastic module being in contact with the cam profile to slide there along; a guide part for slidably guiding the second plate formed at the first plate, the guide part covering a side surface of the second plate and a portion of an opposite surface of the second plate, the opposite surface being opposed to one surface of the second plate facing the first plate; and the cam profile being formed along an edge portion of the guide part; wherein the elastic module comprises: a housing mounted on the second plate; a plunger slidably mounted in the housing; a roller rotatably coupled to a front side of the plunger and being in contact with the cam profile; and a spring insertedly mounted in the housing for applying an elastic force to the plunger; and wherein the elastic module is mounted on an upper surface of the second plate opposite the surface of the second plate facing the first plate such that the elastic module is not disposed between the first and second plates.