Patent ID: 8438585

Claim:
A drive device for an optical disc apparatus, comprising: an optical pickup; a guide shaft for movably supporting the optical pickup; a lead screw; a resin tooth fixed to the optical pickup, the tooth extending toward the lead screw in a cantilevered state, meshing cogs thereof being in meshed engagement with the lead screw, and the tooth being advanced following the rotation of the lead screw; and a traverse chassis for mounting the aforementioned members; wherein the tooth comprises a tooth body fixed to the optical pickup; support pieces projecting from the tooth body toward the lead screw; resin spring pieces having a base part on the projecting ends of the support pieces and extending in a direction orthogonal to the axial direction of the lead screw; a plate part provided with a base part on the extending ends of the resin spring pieces and formed in a direction parallel to the axial direction of the lead screw; meshing cogs formed on the plate part on the side near the lead screw; a cover projecting above the lead screw from the plate part disposed above the meshing cogs, straddling the lead screw, and bending sharply downward at a distal end; and a handle projecting from the tooth body.