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    SINTERED METAL MATERIAL, SINTERED OIL-IMPREGNATED BEARING FORMED OF THE METAL MATERIAL, AND FLUID LUBRICATION BEARING DEVICE
    1.
    发明申请
    SINTERED METAL MATERIAL, SINTERED OIL-IMPREGNATED BEARING FORMED OF THE METAL MATERIAL, AND FLUID LUBRICATION BEARING DEVICE 审中-公开
    烧结金属材料，金属材料形成的烧结油基轴承和流体润滑轴承装置

    公开(公告)号：US20090142010A1

    公开(公告)日：2009-06-04

    申请号：US11719809

    申请日：2005-12-27

    申请人： Fuyuki Ito ,  Kazuo Okamura ,  Toshihiko Tanaka

    发明人： Fuyuki Ito ,  Kazuo Okamura ,  Toshihiko Tanaka

    IPC分类号： F16C33/10 ,  C22C9/00

    CPC分类号： C22C9/00 ,  C22C33/0207 ,  F16C17/10 ,  F16C17/107 ,  F16C33/107 ,  F16C33/121

    摘要： Provided are a sintered metal material improved in sliding property and wear resistance with respect to an associated sliding member to be supported, and a sintered oil-impregnated bearing formed of this metal material. A bearing sleeve is formed by compacting a mixed metal powder composed of not less than 5 wt % and not more than 94.3 wt % of Cu powder, not less than 5 wt % and not more than 94.3 wt % of SUS powder, not less than 0.2 wt % and not more than 10 wt % of Sn powder, and not less than 0.5 wt % and not more than wt % of graphite, and then performing sintering on a compact of the mixed metal powder.

    摘要翻译： 提供一种相对于要支撑的相关滑动构件提供的滑动性能和耐磨性改善的烧结金属材料，以及由该金属材料形成的烧结含油轴承。 通过将由不低于5重量％且不大于94.3重量％的Cu粉末组成的混合金属粉末压制成不小于5重量％且不大于94.3重量％的SUS粉末形成轴承套筒，不小于 Sn粉末的0.2重量％以上10重量％以下，石墨不少于0.5重量％以下，然后对该复合金属粉末的成形体进行烧结。

    FLUID DYNAMIC BEARING DEVICE
    2.
    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：US20120170880A1

    公开(公告)日：2012-07-05

    申请号：US13395217

    申请日：2010-08-31

    申请人： Fuyuki Ito ,  Kazuo Okamura ,  Fuminori Satoji

    发明人： Fuyuki Ito ,  Kazuo Okamura ,  Fuminori Satoji

    IPC分类号： F16C32/06

    摘要： A density of a bearing sleeve made of a sintered metal is set within a range of from 80% to 95% with respect to a true density, and a Young's modulus of the bearing sleeve is set to be equal to or more than 70 GPa. When the density of the bearing sleeve is increased and also the Young's modulus thereof is set to be equal to or more than 70 GPa in this manner, dimensional variation of an inner peripheral surface of the bearing sleeve can be suppressed to be equal to or less than 0.5 μm when a shaft member having an outer diameter of from 2 mm to 4 mm is to be supported.

    摘要翻译： 由烧结金属构成的轴承套的密度相对于真密度设定在80％〜95％的范围内，将轴承套的杨氏模量设定为70GPa以上。 当轴承套筒的密度增加并且杨氏模量设定为等于或大于70GPa时，轴承套筒的内周面的尺寸变化可被抑制在等于或小于 当外径为2mm〜4mm的轴构件被支承时，为0.5μm以下。

    SINTERED BEARING
    6.
    发明申请
    SINTERED BEARING 审中-公开
    烧结轴承

    公开(公告)号：US20110206305A1

    公开(公告)日：2011-08-25

    申请号：US13126091

    申请日：2009-09-29

    申请人： Fuyuki Ito ,  Kazuo Okamura ,  Makoto Kawamura ,  Hiroko Kawamura ,  Noriyoshi Kurata

    发明人： Fuyuki Ito ,  Kazuo Okamura ,  Makoto Kawamura ,  Hiroko Kawamura ,  Noriyoshi Kurata

    IPC分类号： F16C33/04

    摘要： With use of separated alloy powder (10) as a sintering material, it is possible to utilize characteristics of metals of different types (SUS steel and Cu, for example). Further, a boundary surface between regions constituted by different metals is at least partially alloyed. Thus, it is possible to enhance bonding strength between the regions, and possible to enhance strength of a sintered bearing.

    摘要翻译： 使用分离的合金粉末（10）作为烧结材料，可以利用不同类型的金属（例如SUS钢和Cu）的特性。 此外，由不同金属构成的区域之间的边界面至少部分合金化。 因此，可以提高区域之间的接合强度，并且可以提高烧结轴承的强度。

    BEARING MEMBER AND FLUID DYNAMIC BEARING DEVICE USING SAME
    8.
    发明申请
    BEARING MEMBER AND FLUID DYNAMIC BEARING DEVICE USING SAME 有权
    使用相同的轴承座和流体动力轴承装置

    公开(公告)号：US20130071054A1

    公开(公告)日：2013-03-21

    申请号：US13699257

    申请日：2011-04-21

    申请人： Kazuyoshi Harada ,  Kimihiko Bito ,  Fuyuki Ito

    发明人： Kazuyoshi Harada ,  Kimihiko Bito ,  Fuyuki Ito

    IPC分类号： F16C32/06

    CPC分类号： F16C32/0629 ,  F16C17/107 ,  F16C33/1065 ,  F16C33/107

    摘要： When a bearing member (bearing sleeve (8)) is formed of a sintered metal comprising a middle relief portion (E), a lubricating oil can be impregnated and retained in inner pores of the sintered metal. Thus, when the lubricating oil in a middle relief space (E0) is drawn into a radial bearing gap side and lubricating oil pressure in the middle relief space (E0) decreases, the lubricating oil impregnated in the inner pores of the bearing sleeve (8) is drawn out from surface pores of the middle relief portion (E) and supplied into the middle relief space (E0). Thus, generation of negative pressure is prevented.

    摘要翻译： 当轴承构件（轴承套筒（8））由包括中间浮雕部分（E）的烧结金属形成时，可以将润滑油浸渍并保留在烧结金属的内孔中。 因此，当中间浮雕空间（E0）中的润滑油被拉入径向轴承间隙侧并且中间浮雕空间（E0）中的润滑油压力降低时，浸渍在轴承套筒（8）的内孔中的润滑油 ）从中间浮雕部（E）的表面孔拉出并供给到中间浮雕空间（E0）。 因此，防止产生负压。

    FLUID DYNAMIC BEARING DEVICE
    9.
    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。

    SINTERED BEARING
    10.
    发明申请
    SINTERED BEARING 有权
    烧结轴承

    公开(公告)号：US20130182979A1

    公开(公告)日：2013-07-18

    申请号：US13824170

    申请日：2011-09-02

    申请人： Fuyuki Ito ,  Natsuhiko Mori

    发明人： Fuyuki Ito ,  Natsuhiko Mori

    IPC分类号： F16C32/06

    CPC分类号： F16C32/0629 ,  B22F1/0014 ,  B22F3/12 ,  C22C38/16 ,  F16C17/107 ,  F16C33/104 ,  F16C33/121 ,  F16C33/128 ,  F16C2204/10 ,  F16C2240/48 ,  F16C2370/12

    摘要： With use of a fine copper-based powder, specifically a copper-based powder that contains particles each having a diameter of 45 μm or less by 80 weight % or more, an air permeability can be significantly reduced. When this copper-based powder is used, a sintered metal can be easily formed to contain copper by 40% or less (contain iron by 60% or more) to enhance abrasion resistance, and to have an oil permeability of 1.00 g/10 min or less to increase an oil film formation rate.

    摘要翻译： 通过使用细铜基粉末，特别是含有直径45μm以下80重量％以上的粒子的铜系粉末，可以显着降低透气度。 当使用这种铜基粉末时，可以容易地形成烧结金属，以使铜含有40％以下（含铁60％以上）以提高耐磨性，并且具有1.00g / 10分钟的透油性 以下以提高油膜形成速度。