Patent ID: 8302114

Claim:
A disk apparatus, comprising: a housing on which an opening through which disks including at least a first disk and a second disk of which diameter is smaller than a diameter of the first disk are adapted to be inserted into and extracted from the housing is provided; a carrying unit that carries one of the disks inserted into the opening into the housing; a rotating unit that rotates the carried one of the disks, and an information reading/recording unit that performs at least one of reading of information from the one of the disks and recording of information on the one of the disks rotated by the rotating unit; wherein the opening is sized in accordance with the diameter of the first disk, the carrying unit includes: a pair of arms disposed in a substantially symmetrical relationship with respect to a carrying direction of the one of the disks in the proximity of ends of the opening such that the arms pivot around one end portions thereof adjacent to the opening in synchronism with each other in a first direction in which the other end portions of the arms located opposite to the one end portions on the arms approach each other and in a second direction in which the other end portions move away from each other; a biasing unit that biases the other end portions of the arms in the first direction; and a lever member provided on a side of at least one of the arms in a rotatable manner, the lever member being in contact with the second disk inserted into the opening to bias the second disk toward the other one of the arms; wherein the one end portions of the arms adjacent to the opening are respectively provided close to the opening; each of the arms has a first roller provided thereon and configured to carry the one of the disks; and the disk apparatus comprises a pivotal motion regulation portion that regulates a pivotal motion of the pair of arms in the second direction so that a distance between the first rollers does not exceed the diameter of the second disk until the second disk is in contact with each of the first rollers when the second disk is carried in.