Abstract: An optical disk player having improved disk loading and optical pickup adjusting mechanisms. In accordance with one aspect of the invention, an optical disk loading device is disclosed in which rollers are inserted into a guide groove on a side face of a tray holding the optical disk thereon. The roller has a spherically expansive portion formed in the inserting portion into which the roller is inserted into the guide groove. In accordance with another aspect of the invention, there is disclosed a disk loading device for an optical disk reproducing apparatus in which the elevating member for raising and lowering the tray is disposed on only one side of the tray and the tray can be stably moved horizontally and vertically, while at least the lower half of the tray is left open and is available for the mounting of other components such as electronic circuits.

Abstract: A front loading type disk player which can play both sides of a single disk without ejecting the disk from and reinserting it into the disk player after playing one side. In addition, the disk player can play one or both sides of multiple disks without ejecting or reinserting disks. The disk player includes a movable carrier on which at least two trays are movably mounted. The carrier can be moved in a first direction so as to project from or retract into a housing of the disk player, and the trays can be moved in the first direction with respect to the carrier and a second, vertical direction e.g. perpendicular to the first direction. The trays are moved by moving a chassis, which supports them, with respect to the carrier. The trays are independently movable in the first direction and the chassis 11 is movable in the vertical direction in a stepwise fashion so that the disks stored on the trays can be properly individually placed on the turntable and removed therefrom.

Abstract: A front loading disc player plays back both sides of a loaded disc without ejecting and reloading the disc. The front loading disc player has a playback unit disposed in a player housing and having a turntable and an optical pickup, and a disc transfer mechanism for carrying a disc to be played back and transferring the disc into a playback position. The playback unit is movable by a playback means moving mechanism between a first position corresponding to one side of the disc having reached the playback position and a second position corresponding to the other side of the disc.

Abstract: A front loading disk player of a type capable of playing disks of different diameters wherein the diameter and proper loading of the disk can be detected at all times with a simple sensor arrangement. The inventive disk player includes a housing, a playing mechanism provided in the housing and including an optical pickup and a turntable, the turntable including a tapered wheel received in the center hole of the disk, a disk conveying mechanism for conveying disks to the playing position, and a clamping mechanism for clamping disks conveyed to the playing position against the turntable. A detector detects the fact that the disk has been clamped against the turntable.