Removable cartridge disk drive with cartridge interlocking and spindle motor telescoping mechanisms

A disk drive adapted for receiving a removable cartridge containing a disk assembly for storing data, said disk drive comprising:

• a housing;
• means adapted for receiving in a receiving plane a removable cartridge containing a disk assembly for storing data;
• motor means adapted for engaging and causing a disk assembly inside a removable cartridge to spin at an appropriate speed;
• means for movable mounting the motor means to the housing so that the motor means is moveable from a first position out of engagement with a disk assembly to a second position operable engaged with a disk assembly;
• means extending from the housing for allowing a user to manually operate said mounting means in order to move said motor between said first and second positions;
• interlocking means for ensuring (1) that the cartridge can not be removed from the receiving means while the motor means is engaged with the disk assembly and (2) that the motor means can not be energized if the cartridge is not received in the receiving means;
• and
• wherein said interlocking means includes means for manually restricting the manual operation of the extending means.