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    Hydrodynamic bearing spindle motor
    1.
    发明授权
    Hydrodynamic bearing spindle motor 有权
    流体动力轴承主轴电机

    公开(公告)号：US06217218B1

    公开(公告)日：2001-04-17

    申请号：US09418005

    申请日：1999-10-14

    申请人： Hiroshi Inoue ,  Masashi Omura ,  Hiromichi Inomata ,  Kaoru Matsuoka ,  Shigeo Obata

    发明人： Hiroshi Inoue ,  Masashi Omura ,  Hiromichi Inomata ,  Kaoru Matsuoka ,  Shigeo Obata

    IPC分类号： F16C3372

    CPC分类号： F16C33/107 ,  F16C33/103 ,  F16C33/74 ,  F16C2202/60 ,  F16C2370/12 ,  G11B19/2018 ,  H02K5/1675

    摘要： A hydrodynamic bearing spindle motor comprising: a fixed member which has a radial bearing portion; a rotational member; a rotary shaft which is rotatably supported by the radial bearing portion of the fixed member and is secured to a substantially central location of the rotational member so as to extend in a vertical direction of the hydrodynamic bearing spindle motor such that the rotational member is disposed above the fixed member; lubricant which is provided between the radial bearing portion of the fixed member and the rotary shaft; a projection which is provided on a lower face of the rotational member so as to be disposed radially outwardly of the rotary shaft and has an oblique inner periphery expanding gradually radially outwardly towards a distal end of the projection; a lubricant receiving member which is secured to an upper face of the fixed member so as to be disposed radially outwardly of the projection; and oil repellent for repelling the lubricant, which is applied to the projection and its vicinity; wherein the lubricant receiving member is provided at a location to which the lubricant repelled by the oil repellent and scattered from the projection through rotation of the rotational member adheres.

    摘要翻译： 一种流体动力轴承主轴电机，包括：具有径向轴承部分的固定部件; 旋转构件; 旋转轴，其由所述固定构件的径向支承部分可旋转地支撑并且固定到所述旋转构件的大致中心位置，以沿所述流体动力轴承主轴电机的垂直方向延伸，使得所述旋转构件设置在所述旋转轴的上方 固定件; 设置在固定构件的径向支承部分和旋转轴之间的润滑剂; 所述突起设置在所述旋转构件的下表面上，以便设置在所述旋转轴的径向外侧，并且具有朝着所述突起的远端逐渐径向向外扩张的倾斜内周; 润滑剂接收构件，其固定到所述固定构件的上表面，以便设置在所述突起的径向外侧; 以及用于排斥施加到所述突起及其附近的润滑剂的防油剂; 其中所述润滑剂接收构件设置在所述斥油斥斥的所述润滑剂通过所述旋转构件的旋转从所述突起散射的位置。

    Rotor assembly, information-recording/-reproducing device using the rotor assembly and method of assembling the rotor assembly
    3.
    发明授权
    Rotor assembly, information-recording/-reproducing device using the rotor assembly and method of assembling the rotor assembly 失效
    使用转子组件的转子组件，信息记录/再生装置和组装转子组件的方法

    公开(公告)号：US06965492B2

    公开(公告)日：2005-11-15

    申请号：US10107830

    申请日：2002-03-26

    申请人： Shigeo Obata ,  Kaoru Matsuoka ,  Koichi Shinohara ,  Yoshihiro Ueno ,  Tatsuhiko Inagaki ,  Hideki Kuwajima ,  Hiromi Kita

    发明人： Shigeo Obata ,  Kaoru Matsuoka ,  Koichi Shinohara ,  Yoshihiro Ueno ,  Tatsuhiko Inagaki ,  Hideki Kuwajima ,  Hiromi Kita

    IPC分类号： G11B19/20 ,  G11B17/02

    CPC分类号： G11B19/2009 ,  F16C17/107 ,  F16C2370/12

    摘要： An information-recording/-reproducing device comprises a rotor assembly formed of a disc portion having information recording layer provided on the main surface and an axle portion, the disc portion being connected at the center of a surface opposite to the main surface with the rotating axle so that the rotating axis crosses at right angle with the main surface of disc portion at the center of rotation, a bearing for supporting the axle of disc portion freely rotatable, a rotating magnet fixed to a rotor yoke, a stator disposed opposing to the rotating magnet, and a motor for rotating the disc portion with the rotating axis of the axle as the center of rotation. Preferably, the disc portion with the rotating axle portion having a round column shape or a cylindrical shape, further may have a shallow hollow in the central part of the main surface which being a surface opposite to the surface having the rotating axle.

    摘要翻译： 一种信息记录再生装置，包括：转子组件，其由具有设置在主表面上的信息记录层的盘部分和轴部分组成，盘部分在与主表面相对的表面的中心处连接，旋转 轴，使得旋转轴与旋转中心处的盘部分的主表面成直角交叉，用于支撑盘部分轴自由旋转的轴承，固定到转子轭的旋转磁体，与 旋转磁体和用于以所述轴的旋转轴线为中心旋转所述盘部的马达。 优选地，具有圆柱形状或圆柱形状的旋转轴部的盘部还可以在主表面的中心部分具有与具有旋转轴的表面相对的表面的浅中空部。

    Spindle motor and disk drive unit
    4.
    发明授权
    Spindle motor and disk drive unit 失效
    主轴电机和磁盘驱动单元

    公开(公告)号：US07265939B2

    公开(公告)日：2007-09-04

    申请号：US10811895

    申请日：2004-03-30

    申请人： Hideki Kuwajima ,  Kaoru Matsuoka ,  Shigeo Obata ,  Kenichi Miyamori

    发明人： Hideki Kuwajima ,  Kaoru Matsuoka ,  Shigeo Obata ,  Kenichi Miyamori

    IPC分类号： G11B17/02 ,  H02K7/00 ,  H02K5/16

    CPC分类号： F16C17/10 ,  F16C2370/12 ,  G11B19/2009 ,  H02K5/1677 ,  H02K7/085

    摘要： Disclosed is a spindle motor and a disk drive unit equipped with the same, having advantages of preventing hard collision between a disk and a signal conversion element due to lifting of rotating components, and avoiding the signal conversion element and swing means for positioning the signal conversion element from being damaged irreparably. Specifically, spindle motor 13 comprises rotor unit 5, stator 11, stator-side bearing member 6 in engagement with rotor-side bearing member 3 to form a shaft rotating type fluid bearing, and chassis 8. Rotor hub 2 has hollow cylinder portion 2a near central axis 1 of rotation, and cylindrical portion 7b of support column 7 secured to chassis 8 is positioned inside the hollow space of cylinder portion 2a without being in contact thereto. Cover 18 is placed with a bottom side of abutment portion 18b kept in abutment upon an upper end of cylindrical portion 7b of support column 7 with a predetermined small clearance provided between upper end 2c of rotor hub 2 and the bottom side of abutment portion 18b.

    摘要翻译： 公开了一种主轴电动机和具有该主轴电动机的盘驱动装置，具有防止由于提升旋转部件而导致的盘与信号转换元件之间的硬碰撞的优点，并且避免了用于定位信号转换的信号转换元件和摆动装置 元素不可修复地被损坏。 具体地说，主轴电动机13包括转子单元5，定子11，与转子侧轴承构件3接合的定子侧轴承构件6，以形成轴旋转型流体轴承，以及底架8。 转子毂2在中心轴线1附近具有中空圆筒部分2a，并且固定在底盘8上的支柱7的圆筒部分7b位于圆筒部分2a的中空空间的内部，而不与其接触。 盖18被放置成具有邻接部分18b的底侧，其保持抵靠在支撑柱7的圆柱形部分7b的上端，并且具有设置在转子毂2的上端2c和基台的底侧之间的预定的小间隙 部分18b。

    Disk drive with head supporting device
    6.
    发明授权
    Disk drive with head supporting device 失效
    带磁头支持装置的磁盘驱动器

    公开(公告)号：US06826018B2

    公开(公告)日：2004-11-30

    申请号：US10087420

    申请日：2002-03-01

    申请人： Hideki Kuwajima ,  Koichi Shinohara ,  Kaoru Matsuoka ,  Kenichi Sakamoto ,  Makoto Miyamoto ,  Shigeo Obata

    发明人： Hideki Kuwajima ,  Koichi Shinohara ,  Kaoru Matsuoka ,  Kenichi Sakamoto ,  Makoto Miyamoto ,  Shigeo Obata

    IPC分类号： G11B2122

    CPC分类号： G11B33/121 ,  G11B25/043

    摘要： A disk drive comprises a recording medium, spinning means, a head supporting device having a support arm disposed in a rotatable manner about a bearing unit in a radial direction as well as a perpendicular direction to a writing surface of the recording medium, and rotating means for rotating the support arm in the radial direction of the recording medium. A shape of the housing is defined based on a first straight line tangent to both an outermost rim of the rotating means and an outer periphery of the recording medium, and according to a quadrilateral comprised of the first straight line, a second straight line tangent to the outer periphery of the recording medium and perpendicular to the first straight line, a third straight line tangent to the outermost rim of the rotating means and perpendicular to the first straight line, and a fourth straight line tangent to the outer periphery of the recording medium and parallel with the first straight line, thereby realizing the disk drive that is compatible in external size with memory cards.

    摘要翻译： 磁盘驱动器包括记录介质，旋转装置，头部支撑装置，其具有以径向方向围绕轴承单元可旋转地设置的支撑臂以及与记录介质的书写表面垂直的方向，旋转装置 用于沿着记录介质的径向旋转支撑臂。 壳体的形状基于与旋转装置的最外边缘和记录介质的外周两者切线的第一直线来定义，并且根据由第一直线组成的四边形，第二直线与 记录介质的外周并且垂直于第一直线，与旋转装置的最外边缘相切并且垂直于第一直线的第三直线和与记录介质的外周相切的第四直线 并与第一直线平行，从而实现与存储卡兼容的外部尺寸的磁盘驱动器。

    Head support mechanism and thin film piezoelectric actuator
    9.
    发明授权
    Head support mechanism and thin film piezoelectric actuator 有权

    公开(公告)号：US07006335B2

    公开(公告)日：2006-02-28

    申请号：US10705131

    申请日：2003-11-10

    申请人： Hideki Kuwajima ,  Kaoru Matsuoka

    发明人： Hideki Kuwajima ,  Kaoru Matsuoka

    IPC分类号： G11B5/56

    CPC分类号： G11B5/5552 ,  G11B5/4873 ,  Y10T29/42

    摘要： A head support mechanism includes a slider for carrying a head at least for performing reproduction of data from a disk, and a holding portion for holding the slider. The holding portion includes: a first portion including a first piezoelectric element; a second portion including a second piezoelectric element; a third portion connected to the first and second portions, the slider being provided on the third portion; and a fixing portion for fixing the first and second portions. At least one of the first and second piezoelectric elements is contracted and expanded in a direction substantially parallel to a surface of the disk, in the presence of an applied voltage so that the slider provided on the third portion is rotated around a predetermined center of rotation.