| 摘要 |
A head actuator includes first and second yoke members. An elastic adhesive member is coupled to the second yoke member. A weight is coupled to the elastic adhesive member. The displacement of a coil in the head actuator causes a carriage to swing. The displacement of the coil generates a reaction. Such a reaction causes vibrations in the first yoke member and the second yoke member. Simultaneously, the vibrations of the first yoke member and the second yoke member serve to induce the vibrations of the weight. The elastic adhesive member serves to establish a shift in phase between the vibrations in the first and second yoke members and the vibrations of the weight. The vibrations in the opposite directions counteract each other, so that the vibrations are significantly reduced in the upper and lower yoke members.
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