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公开(公告)号：US08711516B2
公开(公告)日：2014-04-29
申请号：US13954889
申请日：2013-07-30
Inventor： Mitsuo Kodama , Masafumi Mizuno , Taketo Nonaka
IPC: G11B19/20
CPC classification number: G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B5/012 , G11B19/2009 , H02K5/1677 , H02K7/08 , H02K7/086
Abstract: A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the shaft in a manner encircling the shaft. A first gap between the sleeve and the shaft includes first and second radial dynamic pressure generating portions. An annular sleeve recess is formed in upper face of the sleeve. The ring member includes a ring entering portion that enters the sleeve recess in a non-contact manner. An outward gap in the radial direction where the ring entering portion and the sleeve recess face with each other in the radial direction includes a second air-liquid interface of a lubricant.
Abstract translation: 旋转装置包括一个环绕轴的套筒，一个支撑该轴的壳体，它形成一个环形的支撑凹槽，其中套筒的下端与轴一起进入;一个环形构件，设置在套筒的上方并固定 以围绕轴的方式连接到轴上。 套筒和轴之间的第一间隙包括第一和第二径向动压产生部分。 在套筒的上表面形成环形套筒凹部。 环形构件包括以非接触方式进入套筒凹部的环进入部分。 环形进入部分和套筒凹部在径向上彼此面对的径向方向上的向外的间隙包括润滑剂的第二空气 - 液体界面。
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公开(公告)号：US20140293482A1
公开(公告)日：2014-10-02
申请号：US14224865
申请日：2014-03-25
Inventor： Mitsuo KODAMA , Taketo Nonaka , Hiroshi Kato
IPC: G11B19/20
CPC classification number: G11B19/2036
Abstract: A rotating device includes a rotor on which a magnetic recording disk is to be mounted and a stator configured to rotatably support the rotor. The stator includes a support projection extending along a rotating axis of the rotor, a shaft configured to surround the support projection and fixed to the support projection, a top cover covering the rotor, and a shaft fixing screw configured to fix the top cover to the shaft. The shaft fixing screw enters a shaft fixing screw hole formed in the support projection along the rotating axis.
Abstract translation: 旋转装置包括：转子，其上安装有磁记录盘;定子构造成可旋转地支撑转子。 定子包括沿着转子的旋转轴线延伸的支撑突起，构造成围绕支撑突起并固定到支撑突起的轴，覆盖转子的顶盖和被构造成将顶盖固定到 轴。 轴固定螺钉沿着旋转轴线进入形成在支撑突起中的轴固定螺钉孔。
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Patent Agency Ranking
公开(公告)号：US08885293B2
公开(公告)日：2014-11-11
申请号：US13866641
申请日：2013-04-19
Inventor： Mitsuo Kodama , Taketo Nonaka , Shuji Tsurusako
IPC: G11B19/20
CPC classification number: G11B33/08 , B21D53/10 , F16C17/107 , F16C33/107 , F16C2370/12 , G11B19/2036 , G11B25/043 , H02K5/167 , H02K7/08 , Y10T29/49639
Abstract: A rotating device includes a shaft body that includes a lower rod and an upper rod formed with a retainer hole encircling a part of the lower rod and fixing the lower rod, a bearing body including a shaft encircling member that encircles the shaft body, and freely rotatable relative to the shaft body, a radial dynamic pressure generating groove which is provided in either one of the shaft body and the bearing body and which generates dynamic pressure in a radial direction, a thrust dynamic pressure generating groove which is provided in either one of the shaft body and the bearing body and which generates dynamic pressure in a thrust direction, and a lubrication medium present in a gap between the shaft body and the bearing body.
Abstract translation: 旋转装置包括：轴体，其包括下杆和形成有围绕下杆的一部分并固定下杆的保持孔的上杆;轴承体，包括围绕轴体的轴环形构件，并且自由地 可相对于轴体旋转的径向动压产生槽，其设置在轴体和轴承体中的任一个中，并且在径向方向上产生动压;推力动压产生槽，其设置在 轴体和轴承体，并且在推力方向上产生动压，以及存在于轴体和轴承体之间的间隙中的润滑介质。
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4.发明授权Rotating device with reduced thickness and driving unit with improved base strength 有权具有减小厚度的旋转装置和具有改进的基础强度的驱动单元公开(公告)号：US08976487B2
公开(公告)日：2015-03-10
申请号：US14074331
申请日：2013-11-07
Inventor： Mitsuo Kodama , Taketo Nonaka , Masafumi Mizuno
CPC classification number: G11B19/2045
Abstract: A rotating device comprises: a hub on which a magnetic recording disk is to be mounted; a base configured to rotatably support the hub via a bearing; a shaft configured such that it extends along the rotational axis of the hub; and a chassis arranged such that it faces the magnetic recording disk, and configured to have a Young's modulus that is smaller than that of the base. A base hole is provided to the upper face of the chassis that faces the magnetic recording disk such that it extends along the rotational axis. Furthermore, the base is fitted into the base hole, thereby fixedly mounting the base on the chassis.
Abstract translation: 一种旋转装置包括：一个集线器，磁记录盘将要安装在该集线器上; 基座，其构造成通过轴承可旋转地支撑所述轮毂; 轴构造成使得其沿着轮毂的旋转轴线延伸; 以及布置成使得其面对磁记录盘并且被配置为具有比基底的杨氏模量小的杨氏模量的底架。 基座孔被提供到机架的面向磁记录盘的上表面，使得其沿着旋转轴线延伸。 此外，基座装配到基座孔中，从而将基座固定地安装在底盘上。
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公开(公告)号：US08780494B1
公开(公告)日：2014-07-15
申请号：US14202902
申请日：2014-03-10
Inventor： Mitsuo Kodama , Masafumi Mizuno , Taketo Nonaka
IPC: G11B19/20
CPC classification number: G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B5/012 , G11B19/2009 , H02K5/1677 , H02K7/08 , H02K7/086
Abstract: A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the shaft in a manner encircling the shaft. A first gap between the sleeve and the shaft includes first and second radial dynamic pressure generating portions. An annular sleeve recess is formed in upper face of the sleeve. The ring member includes a ring entering portion that enters the sleeve recess in a non-contact manner. An outward gap in the radial direction where the ring entering portion and the sleeve recess face with each other in the radial direction includes a second air-liquid interface of a lubricant.
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公开(公告)号：US08854767B2
公开(公告)日：2014-10-07
申请号：US13855489
申请日：2013-04-02
Inventor： Mitsuo Kodama , Takanori Watanabe , Susumo Ando , Taketo Nonaka
IPC: G11B17/02
CPC classification number: G11B19/2018
Abstract: A disk drive device comprises a rotor on which a recording disk is to be mounted and a fixed body rotatably supporting the rotor through a bearing unit. The rotor includes a projecting portion configured to fit into a central hole of the recording disk, a clamper configured to be fixed to the projecting portion, and a seating portion provided radially outward of the projecting portion. The projecting portion and the seating portion are configured such that the seating portion moves with respect to the projecting portion by fixing the clamper to the projecting portion with the recording disk being in between the clamper and the seating portion.
Abstract translation: 磁盘驱动装置包括：转子，记录盘将安装在转子上;固定体通过轴承单元可旋转地支撑转子。 转子包括被配置为装配到记录盘的中心孔中的突出部分，构造成固定到突出部分的夹持器和设置在突出部分的径向外侧的支座部分。 突出部分和就座部分构造成使得当记录盘位于夹持器和就座部分之间时，通过将夹持器固定到突出部分上，就座部分相对于突出部分移动。
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公开(公告)号：US20140139949A1
公开(公告)日：2014-05-22
申请号：US14074331
申请日：2013-11-07
Inventor： Mitsuo Kodama , Taketo Nonaka , Masafumi Mizuno
IPC: G11B19/20
CPC classification number: G11B19/2045
Abstract: A rotating device comprises: a hub on which a magnetic recording disk is to be mounted; a base configured to rotatably support the hub via a bearing; a shaft configured such that it extends along the rotational axis of the hub; and a chassis arranged such that it faces the magnetic recording disk, and configured to have a Young's modulus that is smaller than that of the base. A base hole is provided to the upper face of the chassis that faces the magnetic recording disk such that it extends along the rotational axis. Furthermore, the base is fitted into the base hole, thereby fixedly mounting the base on the chassis.
Abstract translation: 一种旋转装置包括：一个集线器，磁记录盘将要安装在该集线器上; 基座，其构造成通过轴承可旋转地支撑所述轮毂; 轴构造成使得其沿着轮毂的旋转轴线延伸; 以及布置成使得其面对磁记录盘并且被配置为具有比基底的杨氏模量小的杨氏模量的底架。 基座孔被提供到机架的面向磁记录盘的上表面，使得其沿着旋转轴线延伸。 此外，基座装配到基座孔中，从而将基座固定地安装在底盘上。
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