Patent ID: 8244318

Claim:
A mobile terminal comprising: a first body forming an external appearance of the mobile terminal; a second body rotatably coupled to the first body; the second body forming the external appearance of the mobile terminal; and a coupling unit for rotatably coupling the first body and the second body to each other, the coupling unit comprising: a hinge housing fixedly coupled to the first body; an outer head fixedly coupled to the second body, the outer head having an insertion hole at an inside thereof; an inner head disposed between the hinge housing and the outer head, and generating an audible collision sound during rotation of the inner head, the inner head being received in the insertion hole such that one side of the inner head is spaced apart from the insertion hole, and the inner head collides with the outer head, during rotation of the inner head, so as to generate the audible collision sound; a cam mounted in the hinge housing and contacting the inner head; and an elastic spring mounted in the hinge housing and providing elastic force to the cam.