| 摘要 |
A rotation key device for a portable terminal which includes a rotation key configured to rotate in forward and reverse directions. The rotation key device comprises a base plate, which is attached, at a lower surface thereof, to an upper surface of a first printed circuit board (PCB) mounted in a body of the portable terminal. The base plate is centrally provided at an upper surface thereof with a plurality of coupling protrusions in order to couple a second PCB, a ring-shaped washer, a rotation key, and a contact plate, to the base plate. A fixed button is coupled with the coupling protrusions of the base plate protruded from the contact plate, thereby retaining the second PCB, the ring-shaped washer, the rotation key, and the contact plate. The fixed button is centrally attached to the upper surface of the second PCB.
|
