Patent ID: 6667859
Filing Date: 2003-12-23
Classification: G11B

Abstract:
A rotational balance adjustment mechanism for a rotary head drum device comprising:a fixed drum; a shaft rotatably driven by a motor provided on the fixed drum; a rotary drum mounting a magnetic head, the rotary drum rotating atop the fixed drum; and a rotary transducer having a fixed transducer member provided on the fixed drum and a rotating transducer member provided on the rotary drum, wherein a plurality of solder balance weights is substantially directly mounted onto the rotary transducer having the rotating transducer member that is adapted to mount the solder balance weights for adjusting the rotational balance of the rotary drum, wherein each balance weight is mounted at an arbitrary position at a predetermined distance along an outer periphery of the rotating transducer member, and wherein mounting members are provided for mounting the balance weights to the rotating transducer, and said mounting members are configured to be shaved or bent for the purpose of achieving a fine adjustment of rotational balance.