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    Bearing apparatus, spindle motor, and disk drive apparatus
    3.
    发明授权
    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：US08794839B2

    公开(公告)日：2014-08-05

    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： F16C32/06

    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。

    Motor and disk drive using the same
    4.
    发明授权
    Motor and disk drive using the same 有权
    电机和磁盘驱动器使用相同

    公开(公告)号：US07830049B2

    公开(公告)日：2010-11-09

    申请号：US12142828

    申请日：2008-06-20

    申请人： Tomohiro Yoneda ,  Keita Hamakawa ,  Takayuki Iwase ,  Hiromasa Fujii ,  Takehito Tamaoka

    发明人： Tomohiro Yoneda ,  Keita Hamakawa ,  Takayuki Iwase ,  Hiromasa Fujii ,  Takehito Tamaoka

    IPC分类号： H02K5/24 ,  H02K7/00 ,  G11B19/20

    CPC分类号： G11B19/2009 ,  H02K5/163 ,  H02K7/085 ,  H02K7/09

    摘要： A thrust yoke is fixed into a second recessed portion of a base with adhesive. The second recessed portion has a first surface to be in contact with the bottom surface of the thrust yoke, and a second surface axially opposing the bottom surface of the thrust yoke with a gap therebetween. The thrust yoke has a bent portion at its radial end. The bent portion is bent downward. The thrust yoke also has a protruding portion extending downward from the bent portion. The protruding portion axially opposes the second surface of the second recessed portion of the base with a gap therebetween.

    摘要翻译： 推力轭用粘合剂固定到基座的第二凹部中。 第二凹部具有与推力轭的底面接触的第一表面和与推力轭的底面轴向相对的第二表面，其间具有间隙。 推力轭在其径向端部具有弯曲部分。 弯曲部分向下弯曲。 推力轭也具有从弯曲部向下方延伸的突出部。 突出部分沿轴向与基座的第二凹部的第二表面相对并且间隔开间隙。

    MOTOR AND DISK DRIVE USING THE SAME
    5.
    发明申请
    MOTOR AND DISK DRIVE USING THE SAME 有权
    使用它的电机和磁盘驱动器

    公开(公告)号：US20090174272A1

    公开(公告)日：2009-07-09

    申请号：US12142828

    申请日：2008-06-20

    申请人： Tomohiro YONEDA ,  Keita HAMAKAWA ,  Takayuki IWASE ,  Hiromasa FUJII ,  Takehito Tamaoka

    发明人： Tomohiro YONEDA ,  Keita HAMAKAWA ,  Takayuki IWASE ,  Hiromasa FUJII ,  Takehito Tamaoka

    IPC分类号： H02K21/22

    CPC分类号： G11B19/2009 ,  H02K5/163 ,  H02K7/085 ,  H02K7/09

    摘要： A thrust yoke is fixed into a second recessed portion of a base with adhesive. The second recessed portion has a first surface to be in contact with the bottom surface of the thrust yoke, and a second surface axially opposing the bottom surface of the thrust yoke with a gap therebetween. The thrust yoke has a bent portion at its radial end. The bent portion is bent downward. The thrust yoke also has a protruding portion extending downward from the bent portion. The protruding portion axially opposes the second surface of the second recessed portion of the base with a gap therebetween.

    摘要翻译： 推力轭用粘合剂固定到基座的第二凹部中。 第二凹部具有与推力轭的底面接触的第一表面和与推力轭的底面轴向相对的第二表面，其间具有间隙。 推力轭在其径向端部具有弯曲部分。 弯曲部分向下弯曲。 推力轭也具有从弯曲部向下方延伸的突出部。 突出部分沿轴向与基座的第二凹部的第二表面相对并且间隔开间隙。

    Motor and disk drive apparatus
    7.
    发明授权
    Motor and disk drive apparatus 有权
    电机和磁盘驱动装置

    公开(公告)号：US08754554B2

    公开(公告)日：2014-06-17

    申请号：US13564900

    申请日：2012-08-02

    申请人： Takehito Tamaoka ,  Kazuhiro Sato ,  Kazuhiko Fukushima

    发明人： Takehito Tamaoka ,  Kazuhiro Sato ,  Kazuhiko Fukushima

    IPC分类号： H02K7/00

    CPC分类号： H02K3/522 ,  G11B19/2009 ,  H02K1/146 ,  H02K1/187 ,  H02K2203/03 ,  H02K2213/03

    摘要： A rotary unit of a motor includes a tubular hub portion. A bearing mechanism of the motor includes a bearing portion positioned radially inward of the hub portion. A stationary unit of the motor includes a stator fixing portion positioned inward of the hub portion and higher than a lower end of the hub portion. A cylinder gap is defined between the hub portion and an upper section of the bearing portion. A first communication gap is defined between a lower section of the hub portion and an upper section of the stator fixing portion. A second communication gap is defined between the lower end of the hub portion and a radial inner section of the stator core.

    摘要翻译： 马达的旋转单元包括管状毂部。 电动机的轴承机构包括位于毂部的径向内侧的轴承部。 电动机的固定单元包括位于轮毂部分内侧并高于轮毂部分下端的定子固定部分。 在轴套部分和轴承部分的上部之间限定了气缸间隙。 第一通信间隙限定在毂部的下部和定子固定部的上部之间。 第二连通间隙限定在毂部的下端和定子芯的径向内部之间。

    Rotor hub, motor, and disk driving device
    8.
    发明授权
    Rotor hub, motor, and disk driving device 有权
    转子毂，电机和磁盘驱动装置

    公开(公告)号：US08760799B2

    公开(公告)日：2014-06-24

    申请号：US13492956

    申请日：2012-06-11

    申请人： Takuro Iguchi ,  Yoshihiro Sameshima ,  Takehito Tamaoka ,  Ryouji Sugiura

    发明人： Takuro Iguchi ,  Yoshihiro Sameshima ,  Takehito Tamaoka ,  Ryouji Sugiura

    IPC分类号： G11B17/02

    CPC分类号： G11B19/2045 ,  G11B17/0282

    摘要： A rotor hub includes a shaft connecting portion arranged to be connected to a shaft serving as a central axis, a disk loading portion centered about the central axis and arranged to support a disk shaped storage medium mounted thereon, a yoke arranged below the disk loading portion and supporting a field magnet at one of an inner side surface thereof and an outer side surface thereof, and a flexible portion connecting the disk loading portion to the yoke and being flexible with respect to a force applied thereto from the yoke.

    摘要翻译： 转子轮毂包括：轴连接部分，其被布置成连接到用作中心轴线的轴;盘装载部分，围绕中心轴线居中并且被布置成支撑安装在其上的盘形存储介质;轭架，其布置在盘装载部分下方 并且在其内侧表面和外侧表面中的一个支撑场磁体;以及柔性部分，其将盘装载部分连接到轭，并且相对于从轭提供的力而是柔性的。

    Spindle motor including hydrodynamic bearing and storage disk drive including same
    9.
    发明授权
    Spindle motor including hydrodynamic bearing and storage disk drive including same 有权
    主轴电动机包括流体动力轴承和包括其的存储盘驱动器

    公开(公告)号：US08520335B2

    公开(公告)日：2013-08-27

    申请号：US13198797

    申请日：2011-08-05

    申请人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Takehito Tamaoka ,  Takashi Yamamoto ,  Kazunori Usui ,  Akira Mukai

    发明人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Takehito Tamaoka ,  Takashi Yamamoto ,  Kazunori Usui ,  Akira Mukai

    IPC分类号： G11B17/02 ,  H02K5/16

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

    摘要： In a motor, a stationary portion includes a shaft portion and an upper thrust portion arranged to define a single continuous monolithic member together with the shaft portion, and arranged to extend radially outward from an upper portion of the shaft portion. The shaft portion includes a female screw portion recessed axially downward from an upper end thereof. An upper end of the single continuous monolithic member defined by the shaft portion and the upper thrust portion includes an upper end annular surface arranged to extend radially outward from the female screw portion perpendicularly or substantially perpendicularly to the central axis. An outside diameter of the upper end annular surface is greater than a diameter of an outer circumferential surface of the shaft portion.

    摘要翻译： 在电动机中，固定部分包括轴部分和上推力部分，所述上部推力部分布置成与所述轴部分一起限定单个连续的整体部件，并且被布置成从所述轴部分的上部径向向外延伸。 轴部包括从其上端轴向向下凹陷的阴螺纹部。 由所述轴部分和所述上推力部分限定的所述单个连续整体构件的上端包括上端环形表面，所述上端环形表面布置成垂直地或基本垂直于所述中心轴线从所述内螺纹部分径向向外延伸。 上端环状面的外径大于轴部的外周面的直径。

    Spindle motor including an electrically conductive adhesive and a non-conductive adhesive arranged between a base and a bearing unit
    10.
    发明授权
    Spindle motor including an electrically conductive adhesive and a non-conductive adhesive arranged between a base and a bearing unit 有权
    主轴电动机包括布置在基座和轴承单元之间的导电粘合剂和非导电粘合剂

    公开(公告)号：US08324776B2

    公开(公告)日：2012-12-04

    申请号：US12687217

    申请日：2010-01-14

    申请人： Takehito Tamaoka ,  Tsuchitsugu Watanabe ,  Takashi Yamamoto

    发明人： Takehito Tamaoka ,  Tsuchitsugu Watanabe ,  Takashi Yamamoto

    IPC分类号： H02K5/167 ,  G11B19/20

    CPC分类号： H02K5/1675 ,  F16C17/107 ,  F16C35/02 ,  F16C2370/12 ,  G11B19/2009 ,  H02K15/14 ,  Y10T29/49009

    摘要： A spindle motor includes a shaft arranged in an upward/downward direction along a central axis; a base member including a substantially cylindrical holder portion arranged around the central axis; a bearing unit arranged radially inward of the holder portion; and a rotating portion arranged above the base member to rotate about the central axis. The rotating portion preferably includes a mounting surface on which a disk is to be mounted. An adhesive containing an electrically conductive material and an adhesive containing an externally stimulated curing material and/or an anaerobic curing material are arranged in a clearance space defined between an inner circumferential surface of the holder portion and an outer circumferential surface of the bearing unit. The adhesive containing the electrically conductive material is arranged above the adhesive containing the externally stimulated curing material and/or the anaerobic curing material.

    摘要翻译： 主轴电动机包括沿着中心轴线向上/向下方向布置的轴; 基部构件，包括围绕所述中心轴线布置的基本上圆柱形的保持器部分; 轴承单元，其布置在所述保持器部分的径向内侧; 以及设置在所述基座构件上方以围绕所述中心轴线旋转的旋转部分。 旋转部分优选地包括其上将安装有盘的安装表面。 包含导电材料的粘合剂和含有外部刺激的固化材料和/或厌氧固化材料的粘合剂布置在保持器部分的内周表面和轴承单元的外周表面之间的间隙空间中。 含有导电材料的粘合剂布置在含有外部刺激的固化材料和/或厌氧固化材料的粘合剂的上方。