Abstract: A disc reproducing apparatus comprises a turntable rotatably supporting a disc and a cartridge movable between a reproduction start position and a reproduction end position. The cartridge is urged by the spring toward the reproduction start position and moved from the reproduction start position to the reproduction end position by a driving mechanism. The driving force of the driving mechanism is transmitted to the cartridge in a reproducing condition by a clutch assembly and is not transmitted in a nonreproducing condition. The cartridge is held in the reproduction start position by the spring in the nonreproducing condition.

Abstract: A video disk player comprises a holding device which holds a retaining frame in a casing for containing a disk and unlocks the same from the casing when the casing containing therein the disk accompanied with the retaining frame is inserted into a housing of the player, thereby leaving the disk and the retaining frame inside the housing when the casing is drawn out of the housing, and releases the retaining frame and locks the same to the casing when the empty casing is inserted into the housing, thereby allowing to take the disk and the retaining frame out of the housing while the disk and the retaining frame are housed in the casing when the casing is drawn out of the housing. The holding device includes a shaft device of a double-shaft structure having first and second shafts.

Abstract: A disc reproducing apparatus comprises a turntable which is vertically movable between an upper position in a reproducing condition and a lower position in a nonreproducing condition;a cartridge which is movable between a reproduction start position and a reproduction end position;cartridge driving mechanism, with a motor, for driving the cartridge from the reproduction start position toward the reproduction end position. The cartridge driving mechanism includes a transmission mechanism which transmits the driving force of the motor to the cartridge when the turntable is located at the upper position, and which does not transmit the driving force of the motor to the cartridge to render the cartridge free to move when the turntable is positioned at the lower position; anda coil spring for urging the cartridge from the reproduction end position to the reproduction start position.

Abstract: In apparatus for loading a disc recorded with informations in a player of the type wherein a caddie containing the disc is inserted into the player along spaced parallel guide rails, a locking device is provided in the player which arrests the inserted disc, an empty caddie is withdrawn from the player leaving the arrested disc, and the informations in the inserted disc are then reproduced, there are provided a pair of spaced rollers urged against opposite side portions of the caddie, an electric motor for rotating the rollers in opposite directions for inserting or withdrawing the caddie into and out of the player, and first and second switches actuated by the caddie for driving the motor is one or opposite direction.

Abstract: A disc is inserted into a disc reproducing apparatus by insertion of a casing housing the disc therein and is removed from the apparatus by insertion of an empty casing thereinto. The apparatus comprises a cartridge which has a stylus and a first mechanism for driving the cartridge. The first driving mechanism includes a clutch mechanism which transmits the driving force of a motor to the cartridge when the apparatus is in a reproducing condition, and which does not transmit the driving force to the cartridge to render the cartridge free to move when the apparatus is in a nonreproducing condition, and an engaging mechanism for holding the cartridge at a reproduction start position in the nonreproducing condition.