Patent ID: 7869844

Claim:
A mechanism for slidably opening and closing a portable communication terminal, which includes a main body and a slider body capable of slidably traveling on the main body to open or close the terminal, the mechanism comprising: a fixing plate coupled to the main body; a slider plate coupled to the slider body in such a way as to slide with respect to the fixing plate; a first zigzag spring disposed between the fixing plate and the slider plate, one end portion of the first zigzag spring being supported at a first position of the fixing plate and the other end portion thereof being supported at a second position of the slider plate; and a second zigzag spring disposed between the fixing plate and the slider plate, one end portion of the second zigzag spring being supported at a third position of the fixing plate and the other end portion thereof being supported at a fourth position of the slider plate; the first and second zigzag springs being disposed in different levels so as not to interrupt each other; the first, second, third, and fourth positions being determined such that the slider plate is resiliently biased towards closing direction when being closed and towards opening direction when being opened, at a certain transition point while the slider plate travels on the fixing plate; wherein the first zigzag spring is disposed such that the slider plate is biased in one direction perpendicular to the sliding direction thereof, and the second zigzag spring is disposed such that the slider plate is biased in opposite direction to the one direction.