Patent ID: 7581233

Claim:
A disk drive, comprising: a main unit having a tray on which a cartridge containing a disk is placed and a driving unit which loads or ejects said tray; a positioning member which inserts said tray, as it is loaded into inside said main unit by said driving unit, now seating said cartridge into a positioning hole formed in said cartridge, and which accordingly positions said cartridge; a cartridge urging member which is provided for said main unit and urges said cartridge against said tray from a direction perpendicular to a disk recording surface of said disk in a condition that said cartridge is positioned by said positioning member; and a traverse holder which is provided for said main unit and has a disk rotating unit that rotates said disk, said traverse holder being rotatable such that said disk rotating unit moves proximal to, or distal from, said disk when said tray is inserted into said main unit, wherein: said cartridge urging member presses said cartridge against said tray, operating cooperatively with said traverse holder which rotates such that said disk rotating unit moves proximal to said disk.