| 摘要 |
An access mechanism includes a fixed generating section for generating a first magnetic field, and a carriage, having at least one head, for generating a second magnetic field so as to be moved together with the head in accordance with a propulsive force generated by interaction between the first and second magnetic fields. The center of gravity of the carriage is substantially located on a line along which the propulsive force acts. The carriage includes a coil for generating the second magnetic field in accordance with a supplied current. The generating section and the coil constitute a voice coil motor. The access mechanism further includes a rail member arranged in a moving direction of the carriage, and a base member, coupled to the carriage and movably engaged with the rail member through bearings, for guiding movement of the carriage driven by the voice coil motor.
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