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    FLUID DYNAMIC BEARING DEVICE
    5.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 有权
    流体动力轴承装置

    公开(公告)号：US20110097025A1

    公开(公告)日：2011-04-28

    申请号：US12997784

    申请日：2009-06-11

    申请人： Fuminori Satoji ,  Toshiyuki Mizutani ,  Tetsuya Yamamoto ,  Isao Komori ,  Tetsuya Kurimura

    发明人： Fuminori Satoji ,  Toshiyuki Mizutani ,  Tetsuya Yamamoto ,  Isao Komori ,  Tetsuya Kurimura

    IPC分类号： F16C32/06

    CPC分类号： F16C33/723 ,  F16C17/107 ,  F16C32/0633 ,  F16C33/745 ,  F16C43/02 ,  F16C2370/12

    摘要： In order to improve retention strength of a lid member without increase in size and reduction in bearing property of a bearing device, a fluid dynamic bearing device (1) includes: a shaft member (2); a bearing sleeve (8) which forms a radial bearing gap between the bearing sleeve and an outer peripheral surface of the shaft member (2); a housing (4) which accommodates the bearing sleeve (8) and is opened at both ends; and a lid member (10) which closes an opening on one end side of the housing (9) and forms thrust bearing portions (T1 and T2). The housing (9) is an injection-molded product into which the bearing sleeve (8) is inserted, and the housing (9) has another end with which a seal portion (9b) forming a seal space (S) is integrally formed. The lid member (10) is fitted with the outer peripheral surface of the housing (9) by loose fitting so that the lid member (10) and the housing (9) are bonded and fixed to each other.

    摘要翻译： 为了提高盖构件的保持强度而不增加轴承装置的尺寸和减小轴承特性，流体动力轴承装置（1）包括：轴构件（2）; 轴承套筒（8），其在所述轴承套筒和所述轴构件（2）的外周表面之间形成径向轴承间隙; 容纳所述轴承套（8）并在两端敞开的壳体（4）; 以及盖构件（10），其封闭所述壳体（9）的一端侧的开口并形成止推轴承部（T1和T2）。 壳体（9）是轴承套（8）插入其中的注塑产品，并且壳体（9）具有形成密封空间（S）的密封部分（9b）的另一端。 盖构件（10）通过松动配合与壳体（9）的外周面嵌合，使得盖构件（10）和壳体（9）彼此结合固定。

    Fluid dynamic bearing device
    6.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号：US09200674B2

    公开(公告)日：2015-12-01

    申请号：US14062273

    申请日：2013-10-24

    申请人： Fuminori Satoji ,  Toshiyuki Mizutani ,  Tetsuya Yamamoto ,  Isao Komori ,  Tetsuya Kurimura

    发明人： Fuminori Satoji ,  Toshiyuki Mizutani ,  Tetsuya Yamamoto ,  Isao Komori ,  Tetsuya Kurimura

    IPC分类号： F16C32/06 ,  F16C33/72 ,  F16C17/10 ,  F16C43/02 ,  F16C33/74

    CPC分类号： F16C33/723 ,  F16C17/107 ,  F16C32/0633 ,  F16C33/745 ,  F16C43/02 ,  F16C2370/12

    摘要： A fluid dynamic bearing device (21) includes: a shaft member (22); a housing (29) as an outer member which is arranged on a radially outer side of the shaft member (22) and is opened at both ends; a radial bearing gap which is formed on a radially inner side of the housing (29) and faces an outer peripheral surface of the shaft member (22); and a lid member (30) closing an opening on one end side of the housing (29), wherein the lid member (30) is fitted to an outer peripheral surface of the housing (29) with a fastening allowance which does not affect accuracy of a surface defining an outer diameter dimension of the radial bearing gap so that the housing (29) and the lid member (30) are bonded and fixed to each other.

    摘要翻译： 流体动力轴承装置（21）包括：轴构件（22）; 作为外部构件的壳体（29），其布置在所述轴构件（22）的径向外侧上并且在两端开口; 径向轴承间隙，其形成在所述壳体（29）的径向内侧并且面向所述轴构件（22）的外周面; 以及盖构件（30），其封闭所述壳体（29）的一端侧的开口，其中，所述盖构件（30）以不影响精度的紧固余量装配到所述壳体（29）的外周面 限定径向轴承间隙的外径尺寸的表面，使得壳体（29）和盖构件（30）彼此结合并固定。

    Fluid dynamic bearing device
    7.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号：US08591113B2

    公开(公告)日：2013-11-26

    申请号：US12997784

    申请日：2009-06-11

    申请人： Fuminori Satoji ,  Toshiyuki Mizutani ,  Tetsuya Yamamoto ,  Isao Komori ,  Tetsuya Kurimura

    发明人： Fuminori Satoji ,  Toshiyuki Mizutani ,  Tetsuya Yamamoto ,  Isao Komori ,  Tetsuya Kurimura

    IPC分类号： F16C32/06

    CPC分类号： F16C33/723 ,  F16C17/107 ,  F16C32/0633 ,  F16C33/745 ,  F16C43/02 ,  F16C2370/12

    摘要： A fluid dynamic bearing device includes: a shaft member; a bearing sleeve which forms a radial bearing gap between the bearing sleeve and an outer peripheral surface of the shaft member; a housing which accommodates the bearing sleeve and is opened at both ends; and a lid member which closes an opening on one end side of the housing and forms thrust bearing portions. The housing is an injection-molded product into which the bearing sleeve is inserted, and the housing has another end with which a seal portion forming a seal space is integrally formed. The lid member is fitted with the outer peripheral surface of the housing by loose fitting so that the lid member and the housing are bonded and fixed to each other.

    摘要翻译： 流体动力轴承装置包括：轴构件; 轴承套筒，其在所述轴承套筒和所述轴构件的外周面之间形成径向轴承间隙; 容纳所述轴承套并在两端开口的壳体; 以及盖构件，其封闭壳体的一端侧的开口并形成止推轴承部。 壳体是轴承套筒插入其中的注模产品，壳体具有形成密封空间的密封部分的另一端。 盖部件通过松动配合装配在壳体的外周面上，使得盖部件和壳体彼此结合固定。

    Hydrodynamic bearing unit
    8.
    发明授权
    Hydrodynamic bearing unit 有权
    流体动力轴承单元

    公开(公告)号：US06843602B2

    公开(公告)日：2005-01-18

    申请号：US09985187

    申请日：2001-11-01

    申请人： Kazuhiko Koseki ,  Makoto Endo ,  Noriyuki Kadowaki ,  Natsuhiko Mori ,  Tetsuya Kurimura

    发明人： Kazuhiko Koseki ,  Makoto Endo ,  Noriyuki Kadowaki ,  Natsuhiko Mori ,  Tetsuya Kurimura

    IPC分类号： F16C17/02 ,  F16C17/08 ,  F16C33/10 ,  G11B19/20 ,  F16C32/06

    CPC分类号： F16C33/107 ,  F16C17/107 ,  F16C25/045 ,  F16C33/104 ,  F16C33/1085 ,  F16C33/74 ,  F16C2240/42 ,  F16C2370/22

    摘要： A hydrodynamic bearing unit is provided, by which the touch between oil and a sealing member in a housing is prevented to prevent oil leakage. A bearing member made of a sintered lubricant-containing metal is disposed along the inner periphery of the housing and a spindle is supported in a non-contact manner by the hydrodynamic oil pressure that is generated in a bearing gap by the rotation of the spindle. The opening of the housing is sealed by the sealing member. A ventilation path is formed so as to communicate a sealed space enclosed by the distal end of the spindle at the bottom of the housing, the bearing member and the housing with open air. An oil reservoir is formed between the inner periphery of the housing and the outer periphery of the bearing member at the end portion of the opening side of the housing. The oil reservoir is made so as to communicate with the ventilation path.

    摘要翻译： 提供了一种流体动力轴承单元，通过该流体动力轴承单元防止油和壳体中的密封构件之间的接触以防止油泄漏。 由含有烧结的含润滑剂的金属构成的支承构件沿着壳体的内周设置，并且通过主轴的旋转在轴承间隙中产生的流体动力学油压以非接触的方式支撑心轴。 壳体的开口由密封构件密封。 形成通气路径，以便在壳体的底部，轴承构件和外壳之间以敞开的空气连通由主轴的远端包围的密封空间。 在壳体的内周和壳体的开口侧的端部的轴承构件的外周之间形成储油部。 储油器与通气路径连通。

    Hydrodynamic oil-impregnated sintered bearing unit
    9.
    发明授权
    Hydrodynamic oil-impregnated sintered bearing unit 有权

    公开(公告)号：US06513979B2

    公开(公告)日：2003-02-04

    申请号：US09912438

    申请日：2001-07-26

    申请人： Natsuhiko Mori ,  Tetsuya Kurimura

    发明人： Natsuhiko Mori ,  Tetsuya Kurimura

    IPC分类号： F16C3206

    CPC分类号： F16C17/107 ,  F16C33/104 ,  F16C33/107

    摘要： A hydrodynamic oil-impregnated sintered bearing unit 1 are comprised a hydrodynamic oil-impregnated sintered bearing 1a, a housing 1b, and a thrust bearing portion for thrust-supporting a shaft. A sealing washer 20 made of metal or resin material is arranged on an opening-portion side of the housing 1b, and that, of a surface of the shaft 2, at least on a region including a portion opposite to the sealing washer 20 a thin layer 21 of a fluorine-containing polymer is formed.

    FLUID DYNAMIC BEARING DEVICE
    10.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 审中-公开
    流体动力轴承装置

    公开(公告)号：US20100226601A1

    公开(公告)日：2010-09-09

    申请号：US12377293

    申请日：2007-08-28

    申请人： Yoshiharu Inazuka ,  Jun Hirade ,  Tetsuya Kurimura ,  Isao Komori ,  Kimihiko Bitou

    发明人： Yoshiharu Inazuka ,  Jun Hirade ,  Tetsuya Kurimura ,  Isao Komori ,  Kimihiko Bitou

    IPC分类号： F16C32/06

    CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1675

    摘要： A hub (10) is a product formed by injection molding of a resin together with a core metal (13) as an inserted component, and the core metal (13) is exposed on a surface of the hub (10). With this configuration, a cavity of a die for molding the hub (10) is not divided by the core metal (13), and hence it is possible to suppress deterioration in fluidity of a resin due to arrangement of the core metal (13) in the cavity.

    摘要翻译： 轮毂（10）是通过将树脂与作为插入部件的芯金属（13）一起注射成型而形成的产品，并且芯部金属（13）暴露在轮毂（10）的表面上。 利用这种构造，用于模制轮毂（10）的模具的空腔不被芯金属（13）分割，因此可以抑制由于芯金属（13）的布置导致的树脂的流动性的劣化， 在腔里。