Patent ID: 6330125
Filing Date: 2001-12-11
Classification: G11B

Abstract:
An exchangeable storage apparatus comprising:a head for reading/writing data from/on a recording medium which stores information, has a driven part for rotation, and is contained in a recording medium cartridge;a head drive actuator for moving the head and determining a position of the head;a recording medium drive actuator for driving the recording medium, said recording medium drive actuator including a rotor;a driving force transfer means having a chucking magnet for transferring a driving force of the recording medium drive actuator to the drive part of the recording medium;a spindle part, provided as part of said rotor of said recording medium drive actuator to position the recording medium contained in the recording medium cartridge, said spindle part having concavity, offset from a center of said spindle part, that receives a projection on the driven part of the recording medium when the recording medium cartridge is inserted to a predetermined position or a convexity, offset from said center of said spindle part, that is received by a concavity in the driven part of the recording medium when the recording medium cartridge is inserted to the predetermined position, the recording medium cartridge being inserted in a one-dimensional direction along a cartridge receiving face to the predetermined position wherein without moving in any other direction; anda head unload means for unloading the head while the recording medium cartridge is not being inserted;wherein the driving force transfer means places a plane, defined by a surface of the chucking magnet of the driving force transfer means, at a position which is fixed relative to the cartridge receiving face and is on a same plane as the cartridge receiving face or on a predetermined plane retracted from the cartridge receiving face;wherein the chucking magnet of the driving force transfer means is separated from the driven part of the recording medium when the recording medium cartridge is not inserted to the predetermined position and is engaged with the driven part of the recording medium when the recording medium is inserted to the predetermined position.