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    Motor including hydrodynamic bearing and disk drive apparatus including same
    1.
    发明授权
    Motor including hydrodynamic bearing and disk drive apparatus including same 有权
    包括流体动力轴承和包括其的磁盘驱动装置的电动机

    公开(公告)号：US08508883B2

    公开(公告)日：2013-08-13

    申请号：US13613106

    申请日：2012-09-13

    申请人： Takehito Tamaoka ,  Shuji Iwasaki ,  Yoichi Sekii ,  Hideki Nishimura

    发明人： Takehito Tamaoka ,  Shuji Iwasaki ,  Yoichi Sekii ,  Hideki Nishimura

    IPC分类号： G11B17/02 ,  H02K7/08

    CPC分类号： G11B19/2009 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/1677

    摘要： A motor includes a shaft portion, an upper plate cylindrical portion, a lower plate cylindrical portion, and a sleeve portion disposed between an upper plate portion and a lower plate portion. The sleeve portion includes an inner sleeve cylindrical portion and an outer sleeve cylindrical portion. An upper seal portion is arranged between the outer circumferential surface of the upper plate cylindrical portion and the inner circumferential surface of the outer sleeve cylindrical portion. A lower seal portion is arranged between the outer circumferential surface of the outer sleeve cylindrical portion and the inner circumferential surface of the lower plate cylindrical portion. At least a portion of the upper seal portion and at least a portion of the lower seal portion radially overlap with a radial gap between the outer circumferential surface of the shaft portion and the inner circumferential surface of the inner sleeve cylindrical portion.

    摘要翻译： 电动机包括轴部，上板圆筒部，下板圆筒部和设置在上板部和下板部之间的套筒部。 套筒部分包括内套筒部分和外套筒部分。 在上板圆筒部的外周面与外套筒筒部的内周面之间配置有上密封部。 在外筒筒部的外周面与下板圆筒部的内周面之间配置有下密封部。 上密封部分的至少一部分和下密封部分的至少一部分径向地与轴部的外圆周表面和内套筒圆筒部分的内圆周表面之间的径向间隙重叠。

    MOTOR AND DISK DRIVE APPARATUS
    2.
    发明申请
    MOTOR AND DISK DRIVE APPARATUS 有权
    电机和磁盘驱动器

    公开(公告)号：US20130083427A1

    公开(公告)日：2013-04-04

    申请号：US13613108

    申请日：2012-09-13

    申请人： Shuji IWASAKI ,  Yoichi SEKII ,  Takehito TAMAOKA ,  Hideki NISHIMURA ,  Kazuto MIYAJIMA ,  Takuro IGUCHI ,  Kazuhiro SATO ,  Takeyuki SHUTO

    发明人： Shuji IWASAKI ,  Yoichi SEKII ,  Takehito TAMAOKA ,  Hideki NISHIMURA ,  Kazuto MIYAJIMA ,  Takuro IGUCHI ,  Kazuhiro SATO ,  Takeyuki SHUTO

    IPC分类号： H02K7/08 ,  G11B17/02

    CPC分类号： G11B19/2009 ,  H02K5/1677

    摘要： A motor includes a shaft component, an upper plate portion, a lower plate portion, and a sleeve portion. The shaft component includes an inner shaft portion and an outer shaft portion. The upper plate portion defines a single monolithic member with one of the inner shaft portion and the outer shaft portion. The lower plate portion defines a single monolithic member with the other of the inner shaft portion and the outer shaft portion. The sleeve portion is disposed between the upper plate portion and the lower plate portion. A radial gap is defined between the sleeve portion and the outer shaft portion. A fixing range in which the outer shaft portion and the inner shaft portion radially overlap is arranged. At least a portion in an axial direction of the fixing range radially overlaps with an existing range in the axial direction of the radial gap.

    摘要翻译： 电动机包括轴部件，上板部分，下板部分和套筒部分。 轴部件包括内轴部分和外轴部分。 上板部分限定了具有内轴部分和外轴部分中的一个的单个整体部件。 下板部分与内轴部分和外轴部分中的另一个部分形成单个整体部件。 套筒部分设置在上板部分和下板部分之间。 径向间隙限定在套筒部分和外轴部分之间。 布置外轴部和内轴部径向重叠的固定范围。 固定范围的轴向的至少一部分与径向间隙的轴向的现有范围径向重叠。

    BEARING APPARATUS, SPINDLE MOTOR, AND DISK DRIVE APPARATUS
    3.
    发明申请
    BEARING APPARATUS, SPINDLE MOTOR, AND DISK DRIVE APPARATUS 有权
    轴承装置，主轴电机和磁盘驱动装置

    公开(公告)号：US20120326543A1

    公开(公告)日：2012-12-27

    申请号：US13602348

    申请日：2012-09-04

    申请人： Akihiro KIMURA ,  Teiichi HIRONO ,  Kunio SAKURADA ,  Kyoko HORISE ,  Takehito TAMAOKA ,  Kazuhiro SATO ,  Yoichi SEKII

    发明人： Akihiro KIMURA ,  Teiichi HIRONO ,  Kunio SAKURADA ,  Kyoko HORISE ,  Takehito TAMAOKA ,  Kazuhiro SATO ,  Yoichi SEKII

    IPC分类号： F16C33/74 ,  H02K7/08

    CPC分类号： F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1677

    摘要： A bearing apparatus includes a stationary shaft, a first annular member, and a rotating member. The rotating member includes a first inner circumferential surface arranged opposite to the outer circumferential surface of the stationary shaft, and a second inner circumferential surface arranged opposite to an outer circumferential surface of the first annular member. A lubricating oil is arranged in a gap between a surface of a stationary member and the rotating member. On an upper side of an upper surface of the lubricating oil, the first annular member and the rotating member are arranged radially opposite to each other with a slight gap defined therebetween, so that a labyrinth seal is defined. The labyrinth seal and a fixing range over which the stationary shaft and the first annular member are fixed to each other are arranged to overlap with each other in a radial direction.

    摘要翻译： 轴承装置包括固定轴，第一环形构件和旋转构件。 旋转构件包括与固定轴的外周面相对配置的第一内周面和与第一环状构件的外周面相对设置的第二内周面。 润滑油布置在固定件的表面和旋转件之间的间隙中。 在润滑油的上表面的上侧，第一环形构件和旋转构件彼此径向相对设置，在其间限定了微小的间隙，从而限定了迷宫式密封。 迷宫式密封件和固定轴和第一环形构件彼此固定的固定范围被布置成在径向方向上彼此重叠。

    BEARING MECHANISM MANUFACTURING METHOD, MOTOR AND STORAGE DISK DRIVE APPARATUS
    4.
    发明申请
    BEARING MECHANISM MANUFACTURING METHOD, MOTOR AND STORAGE DISK DRIVE APPARATUS 审中-公开
    轴承机械制造方法，电机和存储盘驱动装置

    公开(公告)号：US20090165284A1

    公开(公告)日：2009-07-02

    申请号：US12337767

    申请日：2008-12-18

    申请人： Masato GOMYO ,  Yoichi SEKII ,  Hirokazu SHIRAI

    发明人： Masato GOMYO ,  Yoichi SEKII ,  Hirokazu SHIRAI

    IPC分类号： G11B33/00 ,  G11B17/02

    CPC分类号： G11B33/12 ,  Y10T29/49025

    摘要： A method for manufacturing a bearing mechanism includes the steps of: (a) setting a position of an annular member relative to a center axis; (b) moving the annular member toward an opening of a sleeve housing through a shaft by pressing and elastically deforming a bottom portion of the sleeve housing; (c) releasing the pressing to restore the bottom portion to its original shape; and (d) fixing the annular member to the sleeve housing. Herein, the step (b) is performed by arranging the annular member within the sleeve housing, making one end portion of the shaft received in the annular member contact an inner bottom surface of the sleeve housing or with a thrust member disposed thereon, and making the annular member contact the shaft in a direction leading from the opening to the bottom portion of the sleeve housing.

    摘要翻译： 一种用于制造轴承机构的方法包括以下步骤：（a）设定环形构件相对于中心轴线的位置; （b）通过使所述套筒壳体的底部部分压缩并弹性变形，使所述环形构件朝向轴套壳体的开口移动; （c）释放按压以将底部部​​分恢复到原来的形状; 和（d）将环形构件固定到套筒壳体。 这里，步骤（b）通过将环形构件布置在套筒壳体内，使得容纳在环形构件中的轴的一个端部接触套筒壳体的内底面或设置在其上的推力构件，并且 环形构件沿着从套筒壳体的开口到底部的方向接触轴。

    BEARING MECHANISM, MOTOR AND STORAGE DISK DRIVE APPARATUS
    5.
    发明申请
    BEARING MECHANISM, MOTOR AND STORAGE DISK DRIVE APPARATUS 审中-公开
    轴承机构，电机和存储盘驱动装置

    公开(公告)号：US20090161253A1

    公开(公告)日：2009-06-25

    申请号：US12333346

    申请日：2008-12-12

    申请人： Hirokazu SHIRAI ,  Yoichi SEKII ,  Masato GOMYO

    发明人： Hirokazu SHIRAI ,  Yoichi SEKII ,  Masato GOMYO

    IPC分类号： G11B17/02 ,  F16C32/06 ,  H02K5/16

    CPC分类号： F16C17/10 ,  F16C33/107 ,  F16C35/02 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1675

    摘要： A bearing mechanism includes a cylindrical bottom-closed sleeve unit; a shaft unit radially supported by the sleeve unit via a lubricant; and an elastic thrust plate on an inner bottom surface of the sleeve unit to contact an end portion of the shaft unit at a position on a central axis to rotatably support the shaft unit. The shaft unit has a first contact portion, and the sleeve unit has a second contact portion. The contact portions are so arranged that, when a force acting from above the inner bottom surface is applied, movement of the shaft unit is restrained by the contact portions making contact with each other. Further, a distance between the contact portions prior to the force being applied is smaller than the displacement of the shaft unit at which the thrust plate gets so pressed by the shaft unit to be permanently deformed.

    摘要翻译： 轴承机构包括圆柱形底部闭合套筒单元; 通过润滑剂由套筒单元径向支撑的轴单元; 以及在所述套筒单元的内底表面上的弹性止推板，以在所述轴单元的端部在中心轴线上的位置接触以可旋转地支撑所述轴单元。 轴单元具有第一接触部分，并且套筒单元具有第二接触部分。 接触部分布置成使得当从内底表面上方施加的力被施加时，轴单元的运动被彼此接触的接触部分约束。 此外，施加力之前的接触部分之间的距离小于推动板被轴单元压迫以永久变形的轴单元的位移。

    HYDRODYNAMIC BEARING ASSEMBLY AND METHOD OF MANUFACTURING THE SAME
    6.
    发明申请
    HYDRODYNAMIC BEARING ASSEMBLY AND METHOD OF MANUFACTURING THE SAME 审中-公开
    水动力轴承组件及其制造方法

    公开(公告)号：US20080078084A1

    公开(公告)日：2008-04-03

    申请号：US11860577

    申请日：2007-09-25

    申请人： Yoichi SEKII ,  Hiroshi OGAWA

    发明人： Yoichi SEKII ,  Hiroshi OGAWA

    IPC分类号： B21K1/00 ,  G11B17/00 ,  H02K21/12

    CPC分类号： G11B19/2036 ,  Y10T29/49639

    摘要： One or more of constructional members of a hydrodynamic bearing assembly are nickel-plated, and the members to be welded and fixed are arranged to abut on one another. The nickel plating is performed so as to form a plated layer of less than 10 μm in thickness between the members to be welded and fixed. An energy beam is applied at the joining portion of the members to be welded and fixed, to weld and fix these members.

    摘要翻译： 流体动力轴承组件的一个或多个结构构件是镀镍的，待焊接和固定的构件被布置成彼此邻接。 进行镀镍，以在要焊接和固定的构件之间形成厚度小于10微米的镀层。 在被焊接和固定的构件的接合部分处施加能量束，以焊接和固定这些构件。

    Fluid Dynamic-Pressure Bearing, Spindle Motor and Recording Disk Driving Device
    7.
    发明申请
    Fluid Dynamic-Pressure Bearing, Spindle Motor and Recording Disk Driving Device 有权
    流体动压轴承，主轴电机和记录盘驱动装置

    公开(公告)号：US20060083450A1

    公开(公告)日：2006-04-20

    申请号：US11163432

    申请日：2005-10-19

    申请人： Yoichi Sekii ,  Masato Gomyo

    发明人： Yoichi Sekii ,  Masato Gomyo

    IPC分类号： F16C32/06

    CPC分类号： F16C33/107 ,  F16C17/045 ,  F16C33/103 ,  F16C2370/12

    摘要： A fluid dynamic-pressure bearing according to an example of the present invention includes a thrust dynamic-pressure bearing (19) formed between a bearing member (15) and a rotor hub (22) and a taper sealing portion (27) being continuous with the thrust dynamic-pressure bearing (19) and having a radial gap dimension gradually increased along the axial direction. A squeeze portion is formed between the thrust dynamic-pressure bearing (19) and the interface of the taper sealing portion (27) for increasing flow resistance to lubricating fluid.

    摘要翻译： 根据本发明实施例的流体动压轴承包括形成在轴承部件（15）和转子轮毂（22）之间的推力动压轴承（19）和锥形密封部分（27），其与 推力动压轴承（19）具有径向间隙尺寸沿轴向逐渐增大。 在推力动压轴承（19）和锥形密封部分（27）的界面之间形成挤压部分，以增加对润滑流体的流动阻力。

    Spindle motor with fluid dynamic bearing and storage disk drive
    10.
    发明授权
    Spindle motor with fluid dynamic bearing and storage disk drive 有权
    主轴电机带流体动力轴承和存储磁盘驱动器

    公开(公告)号：US08810095B2

    公开(公告)日：2014-08-19

    申请号：US13198776

    申请日：2011-08-05

    申请人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

    发明人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

    IPC分类号： H02K5/167 ,  F16C17/10 ,  H02K7/08 ,  G11B33/14 ,  G11B19/20

    CPC分类号： H02K7/085 ,  F16C17/105 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2036 ,  G11B33/1473

    摘要： A dynamic pressure bearing is defined in a first gap between a shaft portion and a sleeve portion. An upper seal portion extending upward and a lower seal portion extending downward are arranged radially outward of the dynamic pressure bearing. Each of the upper seal portion and the lower seal portion includes a surface including a lubricating oil located therein. The upper seal portion and the lower seal portion are arranged in communication with each other through a communicating hole defined in the sleeve portion. The communicating hole and a space ranging from the upper seal portion to the lower seal portion through the first gap are filled with the lubricating oil. The axial distance between the surfaces of the lubricating oil in the upper seal portion and the lower seal portion is arranged to be shorter than the axial distance between an upper end and a lower end of the dynamic pressure bearing.

    摘要翻译： 在轴部和套筒部之间的第一间隙中限定动态压力轴承。 向上延伸的上密封部分和向下延伸的下密封部分布置在动压轴承的径向外侧。 上密封部分和下密封部分中的每一个包括其中包括润滑油的表面。 上密封部分和下密封部分通过限定在套筒部分中的连通孔彼此连通。 连通孔和通过第一间隙从上密封部到下密封部的空间填充有润滑油。 上密封部中的润滑油的表面与下部密封部之间的轴向距离比动压轴承的上端和下端的轴向距离短。