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    FLUID DYNAMIC BEARING DEVICE
    11.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 有权
    流体动力轴承装置

    公开(公告)号：US20090022439A1

    公开(公告)日：2009-01-22

    申请号：US12281555

    申请日：2007-02-21

    申请人： Tetsuya Yamamoto ,  Kenji Ito ,  Isao Komori

    发明人： Tetsuya Yamamoto ,  Kenji Ito ,  Isao Komori

    IPC分类号： F16C33/20

    CPC分类号： F16C33/103 ,  F16C17/107

    摘要： A fluid dynamic bearing device having high bearing performance at low cost is provided.A bearing member 6 includes an inner diameter part 8 having a radial bearing surface and an outer diameter part 7 having a mounting surface for a bracket 5. Both the inner diameter part 8 and the outer diameter part 7 are made of a resin. The inner diameter part 8 is preferably formed of an oil-impregnated resin, and more preferably a porous resin, and the outer diameter part 7 is formed of a nonporous resin.

    摘要翻译： 提供了一种具有低轴承性能的流体动力轴承装置。 轴承构件6包括具有径向支承表面的内径部分8和具有用于支架5的安装表面的外径部分7.内径部分8和外径部分7均由树脂制成。 内径部8优选由油浸树脂形成，更优选为多孔树脂，外径部7由无孔树脂形成。

    Fluid dynamic bearing device
    12.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号：US08256962B2

    公开(公告)日：2012-09-04

    申请号：US11910316

    申请日：2006-04-17

    申请人： Kenji Ito ,  Isao Komori ,  Fuminori Satoji ,  Fuyuki Ito ,  Yoshiharu Inazuka

    发明人： Kenji Ito ,  Isao Komori ,  Fuminori Satoji ,  Fuyuki Ito ,  Yoshiharu Inazuka

    IPC分类号： F16C32/06

    CPC分类号： F16C33/107 ,  F16C17/107 ,  F16C33/745 ,  F16C2220/04 ,  H02K7/085 ,  H02K7/086

    摘要： The present invention aims to achieve a reduction in cost for a fluid dynamic bearing device. The fluid dynamic bearing device supports a shaft member (2) radially in a non-contact fashion by a dynamic pressure action generated in a radial bearing gap between an outer peripheral surface of the shaft member (2) and an inner peripheral surface (7a) of a bearing member (7), and is composed of the shaft member (2), the bearing member (7), a cover member (8), and a seal member (9). The shaft member (2) is inserted into an inner periphery of the bearing member (7), and an opening at a lower end thereof is sealed by the cover member (8). The seal member (9) is attached to an opening at an upper end of the bearing member (7), forming a seal space (S) between itself and the outer peripheral surface of the shaft member (2). Dynamic pressure grooves (G) of radial bearing portions (R1 and R2) are formed in an inner peripheral surface (7a) of the bearing member (7) by molding.

    摘要翻译： 本发明旨在实现流体动力轴承装置的成本的降低。 流体动力轴承装置通过在轴构件（2）的外周表面和内周表面（7a）之间的径向轴承间隙中产生的动压作用以非接触的方式径向地支撑轴构件（2） 轴承部件（7），由轴部件（2），轴承部件（7），盖部件（8）和密封部件（9）构成。 轴构件（2）插入到轴承构件（7）的内周，并且其下端的开口被盖构件（8）密封。 密封构件（9）安装在轴承构件（7）的上端的开口处，在其与轴构件（2）的外周面之间形成密封空间（S）。 径向轴承部分（R1和R2）的动态压力槽（G）通过模制形成在轴承件（7）的内周表面（7a）中。

    Fluid bearing device
    14.
    发明授权
    Fluid bearing device 有权
    流体轴承装置

    公开(公告)号：US07399121B2

    公开(公告)日：2008-07-15

    申请号：US11727227

    申请日：2007-03-26

    申请人： Fuminori Satoji ,  Seiji Shimizu ,  Kenji Ito ,  Isao Komori ,  Ryouichi Nakajima

    发明人： Fuminori Satoji ,  Seiji Shimizu ,  Kenji Ito ,  Isao Komori ,  Ryouichi Nakajima

    IPC分类号： F16C32/06

    CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/107 ,  F16C2370/12 ,  H02K5/1675

    摘要： The preset invention aims to improve the assembly accuracy and rotation accuracy of a fluid bearing device, and to further reduce the cost thereof. A bearing sleeve is fixed on the inner periphery of a housing. An axial member is supported in a non-contact manner in a radial direction by an oil film formed in a radial bearing gap. The housing made of resin is injection molded with the use of a substrate as an insert part. On the substrate, a control circuit for controlling a polygon scanner motor is mounted.

    摘要翻译： 本发明旨在提高流体轴承装置的组装精度和旋转精度，并进一步降低成本。 轴承套固定在壳体的内周上。 轴向构件通过形成在径向轴承间隙中的油膜以径向方式非接触地支撑。 由树脂制成的壳体通过使用基板作为插入部件进行注射成型。 在基板上安装有用于控制多边形扫描仪马达的控制电路。

    Fluid bearing device
    15.
    发明授权
    Fluid bearing device 有权
    流体轴承装置

    公开(公告)号：US07267484B2

    公开(公告)日：2007-09-11

    申请号：US10843672

    申请日：2004-05-12

    申请人： Fuminori Satoji ,  Seiji Shimizu ,  Kenji Ito ,  Isao Komori ,  Ryouichi Nakajima

    发明人： Fuminori Satoji ,  Seiji Shimizu ,  Kenji Ito ,  Isao Komori ,  Ryouichi Nakajima

    IPC分类号： F16C17/10

    CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/107 ,  F16C2370/12 ,  H02K5/1675

    摘要： The preset invention aims to improve the assembly accuracy and rotation accuracy of a fluid bearing device, and to further reduce the cost thereof. A bearing sleeve is fixed on the inner periphery of a housing. An axial member is supported in a non-contact manner in a radial direction by an oil film formed in a radial bearing gap. The housing made of resin is injection molded with the use of a substrate as an insert part. On the substrate, a control circuit for controlling a polygon scanner motor is mounted.

    摘要翻译： 本发明旨在提高流体轴承装置的组装精度和旋转精度，并进一步降低成本。 轴承套固定在壳体的内周上。 轴向构件通过形成在径向轴承间隙中的油膜以径向方式非接触地支撑。 由树脂制成的壳体通过使用基板作为插入部件进行注射成型。 在基板上安装有用于控制多边形扫描仪马达的控制电路。

    Fluid dynamic bearing device
    16.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号：US08177434B2

    公开(公告)日：2012-05-15

    申请号：US12282057

    申请日：2007-02-28

    申请人： Kenji Ito ,  Yoshiharu Inazuka ,  Isao Komori ,  Masaharu Hori ,  Masaaki Toda

    发明人： Kenji Ito ,  Yoshiharu Inazuka ,  Isao Komori ,  Masaharu Hori ,  Masaaki Toda

    IPC分类号： F16C32/06

    CPC分类号： F16C17/107 ,  F16C17/026 ,  F16C17/045 ,  F16C33/107

    摘要： A fluid dynamic bearing device includes a housing injection molded with a bearing sleeve as an insert. Accordingly, the molding of the housing and the assembly of the housing and the bearing sleeve can be performed in a single step. In addition to this, by simply increasing the die precisions the housing and the bearing sleeve can be fixed easily with high precision. Since the housing is opened at both ends, it is possible to sandwich the bearing sleeve, and accordingly, the bearing sleeve can be accurately positioned inside the dies with reliability.

    摘要翻译： 流体动力轴承装置包括注射成型的轴承套筒作为插入件的壳体。 因此，壳体的模制和壳体和轴承套的组装可以在一个步骤中进行。 除此之外，通过简单地增加模具精度，可以高精度地容易地固定壳体和轴承套筒。 由于壳体在两端开口，因此可以夹持轴承套筒，因此可以可靠地将轴承套筒精确地定位在模具内部。

    Fluid dynamic bearing device
    17.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号：US07798721B2

    公开(公告)日：2010-09-21

    申请号：US10591802

    申请日：2005-03-17

    申请人： Katsuo Shibahara ,  Kenji Ito ,  Isao Komori ,  Ryouichi Nakajima ,  Tetsuya Kurimura

    发明人： Katsuo Shibahara ,  Kenji Ito ,  Isao Komori ,  Ryouichi Nakajima ,  Tetsuya Kurimura

    IPC分类号： F16C32/06 ,  H02K5/16 ,  B29D22/00

    CPC分类号： F16C33/201 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B19/2018 ,  Y10T428/1352

    摘要： The present invention provides a fluid dynamic bearing device having high durability and capable of being produced at low cost. In the fluid dynamic bearing device, a housing and a disc hub are resin molded parts, and a thrust bearing gap is formed between an upper end surface of the housing and a lower end surface of the disc hub. In this case, the surfaces function as sliding portions temporarily in sliding contact with each other during operation of the bearing. A diameter of PAN-based carbon fibers blended as reinforcement fibers in the resin housing is 12 μm or less, and the blending amount is within a range of 5 to 20 vol %, thereby making it possible to prevent occurrence of flaws and wear in the sliding portions.

    摘要翻译： 本发明提供一种具有高耐久性且能够以低成本制造的流体动力轴承装置。 在流体动态轴承装置中，壳体和盘毂是树脂模制部件，并且在壳体的上端表面和盘毂的下端表面之间形成推力轴承间隙。 在这种情况下，在轴承的动作中，表面作为滑动部临时滑动接触。 在树脂壳体中作为增强纤维混合的PAN系碳纤维的直径为12μm以下，配合量在5〜20体积％的范围内，从而可以防止发生瑕疵和 滑动部分。

    FLUID DYNAMIC BEARING DEVICE
    18.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 有权
    流体动力轴承装置

    公开(公告)号：US20090129710A1

    公开(公告)日：2009-05-21

    申请号：US11910316

    申请日：2006-04-17

    申请人： Kenji Ito ,  Isao Komori ,  Fuminori Satoji ,  Fuyuki Ito ,  Yoshiharu Inazuka

    发明人： Kenji Ito ,  Isao Komori ,  Fuminori Satoji ,  Fuyuki Ito ,  Yoshiharu Inazuka

    IPC分类号： F16C32/06

    CPC分类号： F16C33/107 ,  F16C17/107 ,  F16C33/745 ,  F16C2220/04 ,  H02K7/085 ,  H02K7/086

    摘要： The present invention aims to achieve a reduction in cost for a fluid dynamic bearing device. The fluid dynamic bearing device supports a shaft member (2) radially in a non-contact fashion by a dynamic pressure action generated in a radial bearing gap between an outer peripheral surface of the shaft member (2) and an inner peripheral surface (7a) of a bearing member (7), and is composed of the shaft member (2), the bearing member (7), a cover member (8), and a seal member (9). The shaft member (2) is inserted into an inner periphery of the bearing member (7), and an opening at a lower end thereof is sealed by the cover member (8). The seal member (9) is attached to an opening at an upper end of the bearing member (7), forming a seal space (S) between itself and the outer peripheral surface of the shaft member (2). Dynamic pressure grooves (G) of radial bearing portions (R1 and R2) are formed in an inner peripheral surface (7a) of the bearing member (7) by molding.

    摘要翻译： 本发明旨在实现流体动力轴承装置的成本的降低。 流体动力轴承装置通过在轴构件（2）的外周表面和内周表面（7a）之间的径向轴承间隙中产生的动压作用以非接触的方式径向地支撑轴构件（2） 轴承部件（7），由轴部件（2），轴承部件（7），盖部件（8）和密封部件（9）构成。 轴构件（2）插入到轴承构件（7）的内周，并且其下端的开口被盖构件（8）密封。 密封构件（9）安装在轴承构件（7）的上端的开口处，在其与轴构件（2）的外周面之间形成密封空间（S）。 径向轴承部分（R1和R2）的动态压力槽（G）通过模制形成在轴承件（7）的内周表面（7a）中。