Patent ID: 7296278
Filing Date: 2007-11-13
Classification: G11B

Abstract:
1. A disk drive comprising: a main frame; a cartridge having rails at one side thereof, and slots at another side thereof, and slidably installed in the main frame; a plurality of disk trays stacked in the cartridge and slidably installed therein; an elevation unit for controlling a height of a turn table; a tray selecting unit for locking or unlocking each tray so that each tray can be loaded or unloaded to/from a loading platform; a loading unit for loading each tray above the turn table to reproduce/record data on a disk by an optical pick-up unit; and driving units for driving the cartridge, the elevation unit, the tray selecting unit and the loading unit, wherein the tray selecting unit comprises: a plate fixed at one side of the main frame and having a plurality of slots at a middle portion thereof; a first lever having a first head on one side thereof, a first protrusion and a second protrusion at the other side of both ends of the first lever, and rotatably installed at one side of each slot of the of the fixed plate to lock each tray; a second lever having a second head at one side thereof, and rotatably installed at the other side of each slot of the fixed plate to inter-work with the first lever; a first plate spring fixed at one inner side of the fixed plate and elastically supporting the first lever; a second plate spring fixed at the other inner side of the fixed plate and elastically supporting the second lever; and a moving plate having release protrusions for pressing the second protrusion of the first lever at one side thereof, a locking groove and a release groove at both sides of each release protrusion, and moveably installed at an outer side of the fixed plate.