Abstract: A rotary knob assembly capable of up-and-down motion is provided. The rotary knob assembly includes a lower case with an oil damper; a rotary sleeve rotatably disposed in the lower case with a connecting hole; a slide cam that moves linearly with respect to the lower case with a pair of cam grooves and a sleeve hole; an elastic member disposed between the slide cam and the lower case; an up-and-down moving sleeve that moves up and down with respect to the rotary sleeve with a pair of up-and-down cams inserted in the pair of cam grooves of the slide cam; a rotary knob that is rotatably connected to the up-and-down moving sleeve; and an upper case connected to the lower case to limit vertical movement of the rotary knob, wherein a moving speed of the slide cam is controlled by the oil damper.

Abstract: A rotary knob assembly capable of up-and-down motion is provided. The rotary knob assembly includes a lower case with an oil damper; a rotary sleeve rotatably disposed in the lower case with a connecting hole; a slide cam that moves linearly with respect to the lower case with a pair of cam grooves and a sleeve hole; an elastic member disposed between the slide cam and the lower case; an up-and-down moving sleeve that moves up and down with respect to the rotary sleeve with a pair of up-and-down cams inserted in the pair of cam grooves of the slide cam; a rotary knob that is rotatably connected to the up-and-down moving sleeve; and an upper case connected to the lower case to limit vertical movement of the rotary knob, wherein a moving speed of the slide cam is controlled by the oil damper.

Abstract: Disclosed herein is a disc loading device applied to small-sized and slim type disc players. The disc loading device may include a first guide lever, a second guide lever, a trigger lever, a chucking unit, a slider, and a connecting unit. The connecting unit may be selectively operatively connected to the second guide lever, upon loading a first disc or a second disc, to change a timing at which a rotational force of the trigger lever may be transmitted to the slider.

Abstract: An optical disc reproducing apparatus includes a body installed at a wall or other mounting apparatus, and an optical disc drive protruding from the body such that an optical disc is inserted into the optical disc drive. The optical disc drive is rotatably installed to the body to protrude forward from the body, so that the optical disc reproducing apparatus is installed regardless of positions of a wall-mount television installed above the optical disc reproducing apparatus.

Abstract: Disclosed herein is a disc loading device applied to small-sized and slim type disc players. The disc loading device may include a first guide lever, a second guide lever, a trigger lever, a chucking unit, a slider, and a connecting unit. The connecting unit may be selectively operatively connected to the second guide lever, upon loading a first disc or a second disc, to change a timing at which a rotational force of the trigger lever may be transmitted to the slider.

Abstract: An optical disc reproducing apparatus includes a body installed at a wall or other mounting apparatus, and an optical disc drive protruding from the body such that an optical disc is inserted into the optical disc drive. The optical disc drive is rotatably installed to the body to protrude forward from the body, so that the optical disc reproducing apparatus is installed regardless of positions of a wall-mount television installed above the optical disc reproducing apparatus.

Abstract: An optical disk drive includes a damper interposed between a traverse deck having an optical pickup installed therein and a main frame having the traverse deck installed therein, thereby efficiently reducing vibration. The damper is installed in a coupling section between the traverse deck and the main frame to reduce a vibration and includes a through hole into which a boss formed in the main frame is inserted, and a support to protrude from inner circumference of the through hole such that the boss is fitted in the support.