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    • 12. 发明授权
    • Head stack assembly, its manufacturing method, and magnetic disc drive having the same
    • 头堆叠组件,其制造方法和具有其的磁盘驱动器
    • US07599150B2
    • 2009-10-06
    • US11208570
    • 2005-08-23
    • Kenichiro AokiToshiyuki NakadaKeiji ArugaYoshiaki NagasawaNobuyuki HironoYasuhiro HamadaMakoto Sakairi
    • Kenichiro AokiToshiyuki NakadaKeiji ArugaYoshiaki NagasawaNobuyuki HironoYasuhiro HamadaMakoto Sakairi
    • G11B5/48
    • G11B5/4813
    • A method for manufacturing a head stack assembly that includes a pair of suspensions each of which supports a head, an arm that drives the head, and a pair of base plates that attach the pair of suspensions to both sides of the arm that has a perforation hole, each of the pair of base plates having a boss with an opening includes the step of swaging the pair of base plates with the arm by passing, in one direction, a processing member larger than the opening through the perforation hole and the base plates while the pair of base plates are being inserted into the perforation hole at both sides of the perforation hole, wherein where a neutral plane is defined as a plane that halves a thickness of the arm and is perpendicular to a section that includes a center axis of the perforation hole, a first position is defined as a position that has a minimum internal diameter of the base plate, and a second position is defined as a position closest to the neutral plane among contact positions between the base plates and the arm, a distance between the neutral plane and the first position is equal to or smaller than a distance between the neutral plane and the second position before the swaging step.
    • 一种用于制造头堆叠组件的方法,其包括一对悬架,每个悬架支撑头部,驱动头部的臂和一对底板,其将一对悬架连接到臂的两侧,所述两侧具有穿孔 所述一对基板中的每一个具有带有开口的凸台,所述一对基板中的每一个具有开口的凸台包括:使所述一对基板与所述臂成一体的步骤,所述步骤沿一个方向通过穿过所述穿孔而大于所述开口的处理构件 而一对基板正在插入到穿孔的两侧的穿孔中,其中中性平面被定义为将臂的厚度减半并且垂直于包括中心轴的部分的平面 穿孔,第一位置被定义为具有基板的最小内径的位置,并且第二位置被定义为在接触位置中最靠近中立平面的位置为 在基板和臂之间,中间平面与第一位置之间的距离等于或小于在模锻步骤之前的中性平面和第二位置之间的距离。
    • 16. 发明授权
    • Magnetic disk drive and flexible printed circuit board
    • 磁盘驱动器和柔性印刷电路板
    • US5541788A
    • 1996-07-30
    • US346368
    • 1994-11-29
    • Katsuaki IshidaYoshiaki NagasawaMasaharu SugimotoTomoo Sukagawa
    • Katsuaki IshidaYoshiaki NagasawaMasaharu SugimotoTomoo Sukagawa
    • G11B5/55G11B33/12H05K1/11H05K1/18
    • G11B33/121G11B33/122G11B5/4846G11B5/5521H05K1/189H05K1/118H05K2201/053H05K2201/09081H05K2201/10689
    • A magnetic disk device includes a flexible printed circuit board having a first portion provided with read/write ICs for read/write heads and first printed patterns connected to the read/write ICs and a second portion positioned within the first portion, an end of the second portion being connected to the first portion so as to be bendably projected from the first portion, the second portion being provided with a servo IC for the servo head and second printed patterns connected to the servo IC, the flexible printed circuit board being mounted on an actuator body such that one end of the first portion lies outside the actuator and the second portion lies on the actuator body. The magnetic disk device also includes first lead wires of the read/write heads extending to the flexible printed circuit board and being connected to the first patterns, and second lead wires of the servo head extending to the flexible printed circuit board and being connected to the second printed patterns. The first lead wires and the read/write ICs are on one side of an imaginary plane while the second wires and the servo IC are on an opposite side of the imaginary plane, the imaginary plane passing through the tip end of an arm structure and a shaft of the actuator body and being parallel to the shaft.
    • 磁盘装置包括柔性印刷电路板,其具有第一部分,第一部分设置有用于读/写头的读/写IC和连接到读/写IC的第一印刷图案,以及设置在第一部分内的第二部分, 第二部分连接到第一部分以便从第一部分弯曲地突出,第二部分设置有用于伺服头的伺服IC和连接到伺服IC的第二印刷图案,柔性印刷电路板安装在 致动器本体,使得第一部分的一端位于致动器的外部,并且第二部分位于致动器主体上。 磁盘装置还包括延伸到柔性印刷电路板并且连接到第一图案的读/写头的第一引线,并且伺服头的第二引线延伸到柔性印刷电路板并连接到 第二印刷图案。 第一引线和读/写IC位于虚拟平面的一侧,而第二导线和伺服IC位于虚拟平面的相对侧,通过臂结构的末端的假想平面和 致动器主体的轴并且平行于轴。