Abstract: A locking device for a portable terminal includes a body; a battery cover; and a locking unit for allowing the battery cover to be selectively attached or detached from the bottom of the body, wherein a locked or locking-released position of the battery cover provided by the locking unit is located to be concealed within the interior of the body, so that the locked or locking-released position is not exposed to the outside.

Abstract: A sliding-type portable terminal, the sliding-type portable terminal having a first housing, and a second housing slidably coupled with the first housing. The sliding-type portable terminal includes a first driving device interposed between the first and second housings for providing driving force to make the second housing move to a position at which the first housing is open; a second driving device interposed between the first and second housing for providing driving force to make the second housing move to a position at which the second housing overlaps with the first housing, the second driving device having less driving force than that of the first driving device; a restricting device for restricting a sliding movement of the second housing at the position where the second housing overlaps with the first housing; and a releasing device for releasing the restriction of the second housing to the first housing.

Abstract: A sliding-type portable terminal, the sliding-type portable terminal having a first housing, and a second housing slidably coupled with the first housing. The sliding-type portable terminal includes a first driving device interposed between the first and second housings for providing driving force to make the second housing move to a position at which the first housing is open; a second driving device interposed between the first and second housing for providing driving force to make the second housing move to a position at which the second housing overlaps with the first housing, the second driving device having less driving force than that of the first driving device; a restricting device for restricting a sliding movement of the second housing at the position where the second housing overlaps with the first housing; and a releasing device for releasing the restriction of the second housing to the first housing.