Disk drive apparatus

A disk drive apparatus comprising:

• a first chassis unit that has a first pickup base at which a first optical pickup has been disposed;
• and
• a second chassis unit that has a second pickup base at which a pulley supporting part has been provided and at which a second optical pickup has been disposed,
• wherein a disk table on which a disk-like recording medium is loaded is disposed at the first pickup base,
• wherein a support hole is formed in the pulley supporting part,
• wherein a chucking pulley that sandwiches and holds the disk-like recording medium together with the disk table is supported by the pulley supporting part in a state of being inserted in the support hole, and
• wherein, at the chucking pulley, provided are an escape part to avoid interference with the second optical pickup, a flange part that is overhung outward from one end in an axial direction and that restricts fall-off from the support hole, and a clamp part that is overhung outward from another end in the axial direction and that is pressed against an inner periphery of the disk-like recording medium.