| 摘要 |
A disk device has an optical pickup feed mechanism for reciprocating an optical pickup between the inner peripheral side and the outer peripheral side of a disc in the radial direction thereof. The optical pickup feed mechanism includes a threaded shaft threaded with a thread portion formed on an optical pickup main body for reciprocating the optical pickup main body in the radial direction of the disc while supporting it, a rotating drive source for reciprocating the optical pickup main body, and a rotation transmission gear fixed to an end of the threaded shaft for transmitting the rotation of the rotating drive source to the threaded shaft. The disc device further has a biting determination device for determining the biting of the optical pickup main body at an end of the threaded shaft, and a biting removal device for rotating the rotating drive source in such a direction as to remove the biting of the optical pickup main body when the biting determination device determines that the optical pickup main body is bitten. With this arrangement, the biting of the optical pickup main body, which is threaded with the threaded shaft and reciprocated in the radial direction of the disc, at an end of the threaded shaft can be removed by software, and the biting of the optical pickup main body at the end of the threaded shaft can be reliably removed without increasing a cost and without increasing the size of the device as a whole.
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