Abstract: A hinge assembly and a mobile communication terminal equipped with the hinge assembly are disclosed. The hinge assembly in accordance with an embodiment of the present invention can include: a housing; a fixing cam, which is coupled to the housing and has a cam head and a ramp; a shaft, which is coupled to the fixing cam such that the shaft and the fixing cam can rotate; a torsion spring, which is coupled to the fixing cam on one end and the shaft on the other end; a sliding cam, which is coupled to the shaft, such that the sliding cam is allowed to slide over the shaft along the axial direction, and has a protrusion facing the ramp; and a compression spring, which is interposed between the sliding cam and the shaft such that the sliding cam is compressed toward the fixing cam. By using a cam structure, the present invention can selectively control the rotation of the hinge assembly.

Abstract: A tilting device is disclosed. The tilting device may include: a base; a guide, of which one side is hinge-coupled to the base; a jointed link, in which a joint is formed, and of which either end is hinge-coupled respectively to the base and to the other side of the guide, to thereby allow the guide to tilt; a leadscrew engaging the joint; and a driving unit configured to drive the leadscrew. With this configuration, the tilting device may be implemented in a compact structure using a smaller driving unit.

Abstract: Disclosed herein is electric lipstick. The electric lipstick includes a body for accommodating a battery therein, a lipstick container provided with a pair of guide protrusions on the circumferential surface thereof, a guide provided with a pair of guide holes formed along the length of the circumferential wall thereof so as to support the guide protrusions in a vertical direction, a rotary element provided with a pair of spiral grooves on the inner circumferential surface thereof so as to help the guide protrusions be raised and lowered as desired, a motor assembly for rotating the rotary element, and a switch for selectively connecting the motor assembly and the battery to each other and controlling the turning on, turning off, driving duration and driving direction of the motor assembly.

Abstract: Disclosed herein is a lens protecting apparatus for a cellular phone camera. The lens protecting apparatus of the present invention includes a base, which has an opening, through which a lens of the camera is exposed, a coil, which is mounted to the base and is supplied with current, a lens cover, which is rotatably mounted to the base to open or close the opening, and a magnet, which is mounted to the lens cover to form a magnetic field around the coil. The magnet is moved by force generated by the current and the magnetic field, and the lens cover opens or closes the opening using the magnet, to thus move it.