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公开(公告)号：US08845194B2
公开(公告)日：2014-09-30
申请号：US13895512
申请日：2013-05-16
Inventor： Mitsuo Kodama , Ryusuke Sugiki
CPC classification number: F16C32/064 , F16C17/107 , F16C33/103 , F16C33/745 , F16C2240/94 , F16C2370/12 , G11B19/2009 , H02K7/086
Abstract: A rotary device includes a fixed body including a shaft; a rotary body including a sleeve being configured to surround the shaft through lubricant; and first and second taper seals provided in a space between the fixed body and the rotary body in which gas-liquid interfaces of the lubricant exist, respectively, when the rotary device is operated, the first and taper seals being configured such that a lower limit of a filling ratio of the second taper seal corresponds to a predetermined range of the filling ratio of the first taper seal including its lower limit of the filling ratio, and an upper limit of the filling ratio of the second taper seal corresponds to a predetermined filling ratio of the first taper seal that is larger than an upper limit of the predetermined range and lower than an upper limit of the first taper seal.
Abstract translation: 旋转装置包括：固定体，其包括轴; 包括套筒的旋转体构造成通过润滑剂围绕轴; 以及设置在所述固定体和所述旋转体之间的空间中的第一和第二锥形密封件，其中当所述旋转装置被操作时，分别存在所述润滑剂的气液界面，所述第一和第二锥形密封件被构造成使得下限 第二锥形密封件的填充率对应于第一锥形密封件的填充率的预定范围，包括其填充比的下限，并且第二锥形密封件的填充率的上限对应于预定填充物 所述第一锥形密封件的比例大于所述预定范围的上限并且低于所述第一锥形密封件的上限。
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Patent Agency Ranking
公开(公告)号：US08786982B1
公开(公告)日：2014-07-22
申请号：US13910948
申请日：2013-06-05
Inventor： Mitsuo Kodama , Kazuhiro Matsuo
CPC classification number: H02K5/1675 , F16C17/107 , F16C33/1015 , F16C33/1085 , F16C2370/12 , G11B19/2036 , G11B25/043 , G11B33/1446
Abstract: A disk drive device includes a rotating body that rotates and drives a disk, a stationary body which includes a chassis with a protrusive part and a stator core fastened with the chassis, and a fluid bearing unit. The chassis has a recess with a bottom provided in the protrusive part, and the fluid bearing unit includes an insertion part inserted in the recess with the bottom, and a core encircled part. A gas passage is provided which causes a clearance space between the insertion part and the recess with the bottom to be in communication with a disk retaining space.
Abstract translation: 磁盘驱动装置包括旋转并驱动盘的旋转体，包括具有突出部的底盘和与底盘紧固的定子芯的固定体以及流体轴承单元。 底座具有设置在突出部分中的底部的凹部，并且流体轴承单元包括插入到具有底部的凹部中的插入部分和芯部环绕部分。 提供了一种气体通道，其使得插入部分和具有底部的凹部之间的间隙空间与盘保持空间连通。
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公开(公告)号：US08665558B2
公开(公告)日：2014-03-04
申请号：US13872561
申请日：2013-04-29
Inventor： Takanori Watanabe , Mitsuo Kodama , Hiroshi Iwai , Akira Nishio
CPC classification number: H02K3/28 , G11B17/0287 , G11B19/2009 , G11B25/043 , H02K3/18 , H02K5/1675 , H02K21/22
Abstract: A disk drive device includes: a base member; a hub on which a recording disk is placed; a bearing unit arranged on the base member for rotatably supporting the hub; and a spindle drive unit for rotationally driving the hub, wherein the spindle drive unit includes a stator core having salient poles, a coil wound around each of the salient poles, and a magnet having a plurality of magnetic poles arranged in a circumferential direction opposed to the salient poles, the hub includes an outer cylindrical portion formed of a magnetic material and engaged with an inner periphery of the recording disk, and an inner cylindrical portion fixing an outer periphery of the magnet, the number of magnetic poles is an even number in a range of 10 to 16, and the number of salient poles is a multiple of 3 in a range of 12 to 24.
Abstract translation: 磁盘驱动装置包括：基座部件; 记录盘放置在其上的集线器; 轴承单元，布置在所述基座构件上，用于可旋转地支撑所述轮毂; 以及用于旋转驱动轮毂的主轴驱动单元，其中所述主轴驱动单元包括具有凸极的定子芯，缠绕在每个所述凸极上的线圈，以及具有沿与所述凸极相对的圆周方向布置的多个磁极的磁体 凸极包括由磁性材料形成并与记录盘的内周接合的外圆柱形部分和固定磁铁外周的内圆柱形部分，磁极数量为偶数 范围为10〜16，凸极数为12〜24的3的倍数。
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公开(公告)号：US09087547B2
公开(公告)日：2015-07-21
申请号：US14149678
申请日：2014-01-07
Inventor： Mitsuo Kodama
CPC classification number: G11B19/2036 , F16C17/107 , F16C33/109 , F16C2370/12 , H02K5/163 , H02K15/00 , Y10T29/49069
Abstract: A disk drive device includes a stationary body, a rotating body on which a recording disk is to be mounted, and a fluid bearing unit that supports the rotating body in a freely rotatable manner relative to the stationary body. The fluid bearing unit includes a lubricant that is fluorescent.
Abstract translation: 磁盘驱动装置包括静止体，其上安装有记录盘的旋转体，以及相对于固定体以可自由旋转的方式支撑旋转体的流体轴承单元。 流体轴承单元包括荧光的润滑剂。
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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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