Patent ID: 7461387

Claim:
A disk device comprising: a traverse unit including a turn table that holds and rotates a disk medium, an optical pickup that performs at least one of writing and reading of information on said disk medium, and a traverse chassis that supports them; a carrier that carries said disk medium between a loading position and an unloading position; and a main chassis supporting said traverse unit so that said traverse unit is capable of rotating, allowing said traverse unit to move toward and away from said disk medium, wherein said traverse chassis has a pair of coaxial rotation shafts for said rotating, and said main chassis has a pair of supporting portions respectively supporting said rotation shafts, and wherein said supporting portions include groove portions that open in a direction substantially parallel to the carrying direction of said disk medium carried by said word carrier, and resiliently deformable position-regulating members that regulate the positions of said rotation shafts so as to prevent said rotation shafts from being dropped out of said groove portions.