Hinge device and personal portable device having the same

PURPOSE: A hinge device and a personal portable terminal including the same are provided to prevent the generation of an operation noise caused by a size error as a first and a second inverted cams placed in series interact with each other. CONSTITUTION: A common driving cam member(710) includes a first driving cam profile at an end and a second driving cam profile at the other end. A first inverted cam member(720) includes a first inverted cam profile corresponding to the first driving cam profile and is rectilinearly moved to the end of the common driving cam member. An elastic member(730) supplies elastic force to move the first inverted cam member in a direction approaching an end of the driving cam member. A second inverted cam member(750) includes a second inverted cam profile corresponding to the second driving cam profile and is rectilinearly moved to the other end of the common driving cam member.