Patent ID: 7360226

Claim:
A disc drive device comprising: a drive gear rotated by a motor; a loading mechanism, including a loading transmission gear constantly engaging the drive gear, for loading and unloading a disc with drive force transmitted from the loading transmission gear; a pick-up moving mechanism, including a pick-up transmission gear, for moving a pick-up with drive force transmitted to the pick-up transmission gear; an idler gear constantly engaging the drive gear and separably engaging the pick-up transmission gear; a first slider moved between a first position, which is maintained when a disc is not loaded, and a second position, which is maintained when a disc is loaded, to engage the idler gear and the pick-up transmission gear when moved to the second position and to disengage the idler gear and the pick-up transmission gear when moved from the second position; a second slider for moving the first slider to the second position by transmitting drive force from the drive gear to the first slider located at the first position when loading the disc and moving the first slider to the first position by transmitting the drive force from the drive gear to the first slider located at the second position when unloading the disc; a slider drive sear rotated when drive force is transmitted from the drive gear, wherein the second slider includes a rack moved together with the first slider and being swingable relative to the first slider, held engaged with the slider drive sear at a position intermediate to the first position and second position, and separably engaged with the slider drive gear at te first position and the second position; and an urging means for urging the second slider in a direction to separate a rack from the slider drive gear.