Disk player and turntable incorporating self-compensating dynamic balancer clamper incorporating self-compensating dynamic balancer and spindle motor incorporating self compensating dynamic balancer adopted for disk player

摘要

PURPOSE: A disk player is provided to suppress an external vibration by a buffering member, and to suppress an internal vibration caused by eccentric mass of a disk by a self-compensating dynamic balancer, thereby efficiently suppressing an internal vibration caused by disk rotation. CONSTITUTION: A deck plate(70) is elastically coupled with a deck base(50). A buffering member(60) is interposed between the deck base and the deck plate, to protect the deck plate from an external impact. A spindle motor(100) installed in the deck plate supplies a rotative force to a disk(1). A turn table(200) is installed on a pivot of the spindle motor, and sets the disk. A clamper(300) clamps the disk set on the turn table. An optical pickup(75) installed on the deck plate writes or reads information on the disk. A self-compensating dynamic balancer(400) is installed on a can-type space of one of rotative members rotated by a rotative force supplied from the spindle motor, and is located opposite to a center of gravity of the disk on the basis of a pivot of the spindle motor by a centrifugal force of disk rotation.