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    • 1. 发明授权
    • Magnetic latch for disk drive actuator
    • 用于磁盘驱动器执行器的磁性闩锁
    • US5023736A
    • 1991-06-11
    • US355162
    • 1989-05-22
    • Gary KelsicJim Martinez
    • Gary KelsicJim Martinez
    • G11B21/02G11B5/54G11B5/55G11B21/22
    • G11B5/5521G11B5/54
    • A limit stop/latching assembly in a disk storage system includes a crash stop for limiting travel of the actuator carriage at a fixed stop position. The assembly has a carriage latch incorporated with the crash stop. A magnetic latch actuator plate extends from the actuator carriage and is movable with the actuator carriage in a path of travel of the actuator carriage to abut the stop position. The carriage latch has a magnet and a pair of magnetic pole pieces abutting the magnet wherein the distance between the pole pieces defines a first gap and the distance between the pole pieces and the latch actuator plate defines a second gap. The latch is moved between a latched position, wherein said pole pieces are in magnetic contact with the latch plate, and a free position, wherein the actuator carriage is pivoted such that the second gap is greater than the first gap whereby magnetic flux is channeled substantially through the first gap to enable the latch plate to move remote from the crash stop.
    • 磁盘存储系统中的极限停止/闭锁组件包括用于限制致动器滑架在固定停止位置的行进的碰撞停止。 该组件具有结合有碰撞停止件的滑架闩锁。 磁性闩锁致动器板从致动器滑架延伸并且可随着致动器滑架在致动器滑架的行进路径中移动以抵靠停止位置。 滑架闩锁具有磁体和抵靠磁体的一对磁极片,其中极片之间的距离限定第一间隙,并且极片和闩锁致动器板之间的距离限定第二间隙。 闩锁在闩锁位置之间移动,其中所述极片与闩锁板磁接触,并且自由位置,其中致动器支架枢转,使得第二间隙大于第一间隙,由此磁通量基本上被引导 通过第一间隙使闩锁板能够从碰撞停止位置移动。