Optical disc device

An optical disc apparatus, comprising:

• a disc rotation mechanism for allowing an optical disc having an information recording face to be placed thereon and rotating the optical disc;
• an optical pickup including an engaging section and irradiating the information recording face with a light beam to perform at least one of information recording and information reproduction;
• a base main body for rotatably supporting the optical pickup and having the disc rotation mechanism;
• a driving source, supported by the base main body, for generating a force for rotating the optical pickup;
• and
• a driving force transmission mechanism supported by the base main body, including a worm, and engaged with the engaging section to transmit a driving force of the driving source to the optical pickup, thereby rotating the optical pickup;
• wherein a distance between the engaging section and a rotating axis of the optical pickup is longer than a distance between the center of gravity of the optical pickup and the rotating axis of the optical pickup;
• the base main body includes a base shaft for rotatably holding the optical pickup;
• the optical pickup includes a pickup rotating hole for allowing the base shaft to be inserted thereto and having a bottom;
• the base main body includes a shaft forcing part for forcing the optical pickup toward the base main body at a general axis of the base shaft in the state where the base shaft is inserted into the pickup rotating hole;
• the base shaft has a tip contactable with the bottom of the pickup rotating hole;
• and
• the tip of the base shaft has a convexed spherical shape, and the bottom of the pickup rotating hole has a concaved spherical shape.

An optical disc apparatus, comprising:

• a disc rotation mechanism for allowing an optical disc having an information recording face to be placed thereon and rotating the optical disc;
• an optical pickup including an engaging section and irradiating the information recording face with a light beam to perform at least one of information recording and information reproduction;
• a base main body for rotatably supporting the optical pickup and having the disc rotation mechanism;
• a driving source, supported by the base main body, for generating a force for rotating the optical pickup;
• and
• a driving force transmission mechanism supported by the base main body, including a worm, and engaged with the engaging section to transmit a driving force of the driving source to the optical pickup, thereby rotating the optical pickup;
• wherein a distance between the engaging section and a rotating axis of the optical pickup is longer than a distance between the center of gravity of the optical pickup and the rotating axis of the optical pickup;
• wherein the base main body includes:
• a first base including a first regulating part for rotatably supporting the optical pickup and regulating a movement of the optical pickup in a direction of the rotating axis;
• and
• a second base including a second regulating part for supporting the driving source and the driving force transmission mechanism and regulating a movement of the engaging section in the direction of the rotating axis;
• wherein:
• the first base includes a base shaft for rotatably supporting the optical pickup and a shaft forcing part;
• the optical pickup includes a pickup rotating hole for allowing the base shaft to be inserted thereto and having a bottom;
• the shaft forcing part forces the optical pickup toward the first base at a general axis of the base shaft in the state where the base shaft is inserted into the pickup rotating hole;
• and
• the disc rotation mechanism includes an attaching base face facing a main surface of the first base, and the attaching base face is interposed between the first base and the second base.