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    • 4. 发明公开
    • E 블록 헤드 스택 마이크로액츄에이터 어셈블리
    • 电子书架堆栈微处理器总成
    • KR1020000057609A
    • 2000-09-25
    • KR1019997005396
    • 1997-05-01
    • 시게이트 테크놀로지 엘엘씨
    • 파드,아노쉬,엠.모하제라니,코스로샘피에트로,조셉,엠.바리나,제프리,지.하우와,무하마드,에이.
    • G11B5/55
    • G11B5/5552G11B5/4873G11B21/08G11B21/106
    • PURPOSE: A system is provided for positioning a transducing head of a disc drive over a selected track (42) of a rotatable disc (40). CONSTITUTION: A system includes an actuator assembly (20, 50) having an E-block body (25) including a cavity (37), at least one actuator arm (30) extending from the E-block body (25), a head suspension mechanism (34, 36, 38) including the transducing head connected to an end of the actuator arm (30), and a pivot cartridge (26) in the cavity (37) in the E-block body (25). The E-block body (25) is attached to the pivot cartridge (26) and forms a hinge point (39) between the E-block body (25) and the pivot cartridge (26). A low resolution motor (22) rotates the actuator assembly (20, 50) about an axis (24) to effect coarse positioning of the head with respect to the selected track (42) of the rotatable disc (40). A piezoelectric element (27, 52) in the E-block body (25) is selectively expanded and contracted to distort the E-block body (25) around the hinge point (39) to effect fine positioning of the head with respect to the selected track (42) of the rotatable disc (40).
    • 目的:提供一种用于将盘驱动器的换能头定位在可旋转盘(40)的选定轨道(42)上的系统。 构成:系统包括具有E形块主体(25)的致动器组件(20,50),该主体包括空腔(37),至少一个从E形块体(25)延伸的致动器臂(30) 包括连接到致动器臂(30)的端部的换能头的悬挂机构(34,36,38)和位于E形块体(25)中的空腔(37)中的枢轴筒(26)。 E块体(25)连接到枢轴筒(26)上,并在E块体(25)和枢轴筒(26)之间形成铰链点(39)。 低分辨率马达(22)围绕轴线(24)旋转致动器组件(20,50),以实现头部相对于可旋转盘(40)的选定轨道(42)的粗略定位。 E块体(25)中的压电元件(27,52)选择性地膨胀和收缩,以使铰链点(39)周围的E形块体(25)变形,以使头部相对于 所述可旋转盘(40)的所选轨道(42)。