| 摘要 |
<p>Disclosed are reciprocating carriage arms carried on roll bearings engaged on guide rails, where the arms are independently driven, having common <<shared>> magnet means. The coil-mounting portion of each arm is <<twisted>> 90 degrees so the set of coil units align along a common <<magnet-plane>> spanned by common drive magnet means. Also, the arms each mount three load-beams (heads) in <<staggered>> array to thus shorten the arm-stroke.</p> |
