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42. 发明授权

US6043957A Head positioning mechanism for magnetic disk device provided with micro tracking actuator using magnetic force and drive control method therefor 失效
标题翻译：具有使用磁力的微跟踪致动器的磁盘装置的头定位机构及其驱动控制方法
公开(公告)号：US6043957A
公开(公告)日：2000-03-28
申请号：US45851
申请日：1998-03-23
申请人： Toshiro Hattori , Hiroshi Kajitani , Masatomo Mizuta , Yoshiho Yanagita
发明人： Toshiro Hattori , Hiroshi Kajitani , Masatomo Mizuta , Yoshiho Yanagita
IPC分类号： G11B21/21 , G11B5/55 , G11B21/02 , G11B5/56
CPC分类号： G11B5/5552
摘要： In a head positioning mechanism has a micro tracking actuator which is between a carriage and a supporting spring for making the supporting spring be rotated relative to the carriage to adjust a position of a magnetic head, the micro tracking actuator has a pair of coils held to one of said carriage and said supporting spring. Each of the coils generates magnetic flux in response to a flow of electric current therein. The micro tracking actuator further has a magnet arrangement held to another of the carriage and the supporting spring to face the coil means in a predetermined direction. The magnet arrangement traverses the magnetic flux to have a particular size which varies in accordance with a predetermined relation in response to a relative movement between the coils and the magnet arrangement. The carriage is movably mounted to a magnetic disk device to which the head positioning mechanism applied. The supporting spring is attached to the carriage and rotatable around a predetermined axis extending in the predetermined direction. The supporting spring holds the magnetic head to perform a seeking operation of the magnetic head in cooperation with the carriage.
摘要翻译：在头部定位机构中具有微型跟踪致动器，该跟踪致动器位于托架和支撑弹簧之间，用于使支撑弹簧相对于托架旋转以调节磁头的位置，微跟踪致动器具有一对线圈，所述托架和所述支撑弹簧之一。每个线圈响应于其中的电流而产生磁通量。微跟踪致动器还具有保持到托架中的另一个和支撑弹簧的磁体布置，以沿预定方向面对线圈装置。磁体装置横穿磁通量以具有响应于线圈和磁体布置之间的相对运动而根据预定关系而变化的特定尺寸。滑架可移动地安装在磁头定位机构所应用的磁盘装置上。支撑弹簧附接到托架并且能够绕预定方向延伸的预定轴线旋转。支撑弹簧保持磁头，以与托架一起执行磁头的寻道操作。

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