Patent ID: 8127322

Claim:
An optical disc drive, comprising: an optical pickup; two (2) pieces of guide shafts, which are configured to support the optical pickup, when moving said optical pickup into a disc radial direction when recording/reproducing; a disc rotation mechanism, which is configured to rotationally drive an optical disc loaded; a transfer mechanism, which is configured to move said optical pickup into a disc radial direction; and a mechanical chassis, which is configured to mount at least said disc rotation mechanism thereon; wherein one of said two (2) pieces of guide shafts forms a main shaft which is engaged with said transfer mechanism through said optical pickup, and is connected with said mechanical chassis, at both ends thereof, through connector portions; wherein a contacting area between at least one (1) end portion of said main shaft and at least one of said connector portions and a pressure plate building up said one of the connector portions is enlarged in the structures thereof; and wherein a cross-section configuration at a portion where the one end portion of said main shaft is in contact with the one of said connector portions and said pressure plate is formed into a comb-like shape, and further a cross-section configuration at a portion where the one of said connector portions and said pressure plate is in contact with the one end portion of said main shaft is formed into a comb-like shape, so as to fit to each other, as such the structures for enlarging the contacting area between the at least one (1) end portion of said main shaft and the at least one of said connector portions and said pressure plate building up said one of the connector portions.