Abstract: Exemplary embodiments are provided of slider mechanisms for slidably opening and closing portable communications terminals. In one exemplary embodiment, a portable communications terminal includes a main body and a slider body sliding on the main body. The slider mechanism includes a first slider member fixed to one of the main body and slider body and a second slider member fixed to the other one. The second slider member is slidably engaged with the first slider member. A zigzag spring is disposed between the first and second slider members. One end portion of the zigzag spring is rotatably supported on one of the first and second slider members and the other end thereof is rotatably supported on the other one of the first and second slider members. The zigzag spring is formed of a first zigzag portion and a second zigzag portion having spring characteristics different from the first zigzag portion.

Abstract: Disclosed herein is an apparatus for opening and closing a portable terminal. The apparatus includes a second cam, which has an upper rib to be latched with the upper portion of the housing and a lower rib to be latched with the bottom of the housing, thereby providing structural stability. In addition, frictional wear and noise can be suppressed while the second cam moves, thereby improving the service life and reliability of the device.

Abstract: The present invention relates to a step hinge for a portable communication terminal, and more particularly to a step hinge mounted to a portable communication terminal, which can rotate at various angles thereto. A step hinge for a portable communication terminal according to the present invention, comprises: a housing; a rotating member mounted in the housing; a friction member mounted in the housing and contacting the rotating member; a belleville spring disposed in the housing so as to press the friction member and the rotating member for a tight contact therebetween.

Abstract: The present invention is directed to an automatic hinge module for a cellular phone, which is capable of automatically opening the cellular phone in a one-touch manner. The automatic hinge module of the present invention automatically opens a cellular phone by simply pressing a button. When the button is pressed, a housing coupled to a folder portion of the cellular phone is rotated by an elastic restoring force of a compressed torsion spring, thereby opening the cellular phone.

Abstract: The present invention provides a stand hinge for an electronic device, which is capable of standing an electronic device at different angles and positions. The present invention further provides an electronic device equipped with the same. The stand hinge of the present invention includes: a connecting member hinge-jointed to an electronic device to rotate in a first direction; and a supporting member for supporting the electronic device against a surface, the supporting member being hinge-jointed to the connecting member to rotate in a second direction different from the first direction.

Abstract: Disclosed is a slider mechanism for slidably opening and closing a portable communication terminal. The slider mechanism includes a first plate and a second plate slidably combined with the first plate. The second plate has a cam profile formed along siding direction. A resilience unit is mounted on the first plate to exert resilient force perpendicularly to moving direction of the second plate. A roller is rotatably attached to an end of the resilience unit. The roller runs along the cam profile while the portable terminal opens or closes. Formed at a desired position of the cam profile is a depression on which the roller rests to hold the terminal in place at closed or opened state, or at any other desired position.

Abstract: Disclosed are a sliding opening and closing device and a portable terminal having the same. According to the first embodiment of the present invention, a slide plate is linked to a main plate to be slidable in one direction. Also, the main plate supports an elastic part so as to generate an elasticity power in one direction. A power transformation member receives the elasticity power of the elastic member, and transmits the elasticity power to the slide plate in the direction of the opening or the closing according to the position of the slide plate.

Abstract: Disclosed are a sliding opening and closing device and a portable terminal having the same. According to the first embodiment of the present invention, a slide plate is linked to a main plate to be slidable in one direction. Also, the main plate supports an elastic part so as to generate an elasticity power in one direction. A power transformation member receives the elasticity power of the elastic member, and transmits the elasticity power to the slide plate in the direction of the opening or the closing according to the position of the slide plate.