US 2003/0137920 A1 · 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

Abstract

A disk player having a self-compensating dynamic balancer which can limit internal vibrations generated by an eccentric center of gravity of a disk, and a turntable, a clamper and a spindle motor which incorporate a self-compensating dynamic balancer. The self-compensating dynamic balancer is formed integrally with rotating members in a disk player; that is, a turntable, a clamper and/or a rotor of a spindle motor. The self-compensating dynamic balancer includes at least one race which is integrally formed with the rotating member and rotates around a rotational shaft, a mobile unit which is located in the race to be capable of moving, and a cover member for covering an opening of the race. Thus, internal vibrations occurring due to the eccentric center of gravity of the disk can be effectively limited by the self-compensating dynamic balancer in which the mobile unit is disposed far away from the center of orbital rotation by a centrifugal force during rotation thereof.

Claims153

Dependent claims

A disk player comprising:

a deck base;
a deck plate elastically coupled to said deck base;
at least one buffering member interposed between said deck base and said deck plate for protecting said deck plate from external impacts;
a spindle motor having a rotational shaft and being mounted to said deck plate for providing a rotational force to a disk;
a turntable mounted to said rotational shaft of said spindle motor for accommodating the disk;
a clamper for holding the disk in place on said turntable;
an optical pickup installed at said deck plate to be capable of moving across the disk;
and
a self-compensating dynamic balancer mounted to at least one among members which are rotated by the rotational force provided by said spindle motor, the center of gravity of said self-compensating dynamic balancer being located opposite to that of said disk with respect to said rotational shaft of said spindle motor by a centrifugal force generated during rotation of the disk.

6 more elements

Dependencies are inferred from the claim text.

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

Life of this patent

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

Life of this patent

Abstract

Claims153