An optical disk device and a carriage feed mechanism for the optical disk
device that are advantageous in reducing a load on a feed motor and
realizing a reduction in a size of the motor and advantageous in a
reduction in a size and weight, wherein a leaf spring includes a first
plate portion attached to a carriage and a second plate portion that is
bent from a tip of the first plate portion and faces a drive gear. A gear
member includes a main body of a rectangular plate shape, a driven gear
that is formed to swell out in this main body and is capable of meshing
with the drive gear, and a columnar shaft portion that is provided
protrudingly from the main body. The driven gear meshes with the drive
gear, the other surface of the main body is brought into abutment against
the second plate portion, and the gear member is disposed on the second
plate portion so as to be rotatable around an axis portion. The gear
member is always biased in a direction.sub.T in which the driven gear
meshes with the drive gear.sub.T by the leaf spring.
