Fluid dynamic bearing device
    22.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号:US08092090B2

    公开(公告)日:2012-01-10

    申请号:US12281555

    申请日:2007-02-21

    IPC分类号: F16C32/06

    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
    23.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 有权
    流体动力轴承装置

    公开(公告)号:US20100232733A1

    公开(公告)日:2010-09-16

    申请号:US12294485

    申请日:2007-02-02

    申请人: Kenji Ito Isao Komori

    发明人: Kenji Ito Isao Komori

    IPC分类号: F16C32/06

    摘要: In this type of fluid dynamic bearing device, a dynamic pressure generating part having high molding accuracy is formed at low cost.A rotating member 2 includes a shaft part 9, and a holding member 10 as a thrust member provided in one end of the shaft part 9. In a partial annular region of a lower end surface 10a1 of a disk part 10a making up the holding member 10, a region where a plurality of dynamic pressure grooves 10a2 and a plurality of sectioning parts 10a3 formed between the plurality of dynamic pressure grooves 10a2 to section the respective dynamic pressure grooves 10a2 are arrayed spirally is formed. The above-described dynamic-pressure-groove 10a2 arrayed region is opposed to an upper end surface 8a of a housing part 8, and forms a thrust bearing clearance of a thrust bearing part T between the dynamic-pressure-groove 10a2 and the upper end surface 8a during the rotation of the shaft part 9. The above-described dynamic-pressure-groove 10a2 arrayed region is molded in the lower end surface 10a1 of the holding member 10 by press working.

    摘要翻译: 在这种类型的流体动力轴承装置中,以低成本形成具有高成型精度的动压产生部件。 旋转构件2包括轴部9和设置在轴部9的一端的推力构件的保持构件10.在构成保持构件的盘部10a的下端面10a1的部分环状区域 如图10所示,形成有多个动压槽10a2和形成在多个动压槽10a2之间的多个切断部10a3,以使各个动压槽10a2分段的区域螺旋地排列。 上述动压槽10a2排列区域与壳体部8的上端面8a相对,并且在动压槽10a2与上端部之间形成推力轴承部T的推力轴承间隙 表面8a在轴部9的旋转期间。上述动压槽10a2排列区域通过冲压加工模制在保持构件10的下端面10a1中。

    Fluid Dynamic Bearing Device
    24.
    发明申请
    Fluid Dynamic Bearing Device 有权
    流体动力轴承装置

    公开(公告)号:US20070274617A1

    公开(公告)日:2007-11-29

    申请号:US10591802

    申请日:2005-03-17

    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 (7) and a disc hub (3) are resin molded parts, and a thrust bearing gap is formed between an upper end surface (7d) of the housing (7) and a lower end surface (3e) of the disc hub (3). In this case, the surfaces (7d, 3e) function as sliding portions (P) 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 (7) 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 (P).

    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。 在流体动力轴承装置中,壳体(7)和盘毂(3)是树脂模制部件,并且在壳体(7)的上端表面(7d)和下端 盘毂(3)的表面(3e)。 在这种情况下,表面(7d,3e)作为滑动部(P)在轴承的运转中暂时相互滑动接触。 在树脂外壳(7)中作为增强纤维混合的PAN系碳纤维的直径为12μm以下,共混量在5〜20vol%的范围内,能够防止发生缺陷, 滑动部分(P)磨损。

    Method for manufacturing a fluid bearing device
    28.
    发明授权
    Method for manufacturing a fluid bearing device 有权
    制造流体轴承装置的方法

    公开(公告)号:US08826541B2

    公开(公告)日:2014-09-09

    申请号:US13307645

    申请日:2011-11-30

    申请人: Kenji Ito

    发明人: Kenji Ito

    摘要: A fluid bearing device is manufactured with a high adhesive strength in fixing another member by adhesion to a resin housing. A bearing sleeve is secured in position inside the resin housing, and a shaft member is radially supported in a non-contact fashion by a dynamic pressure action of lubricant generated in a radial bearing clearance between the shaft member and the bearing sleeve. A metal bracket for mounting the stator coil of a motor is fixed by adhesion to the outer periphery of the housing, in which the adhesion portion of the outer periphery of the housing to be fixed to the bracket is roughened, setting the surface roughness to 0.5 μmRa to 2.0 μmRa.

    摘要翻译: 通过粘附到树脂壳体上来固定另一构件,制造出具有高粘合强度的流体轴承装置。 轴承套被固定在树脂壳体内部的适当位置,并且轴构件通过在轴构件和轴承套筒之间的径向轴承间隙中产生的润滑剂的动态压力作用以非接触的方式径向支撑。 用于安装电动机的定子线圈的金属支架通过粘合固定在外壳的外周,外壳的外周的固定在支架上的粘合部分被粗糙化,将表面粗糙度设定为0.5 μmRa至2.0μmRa。

    Inorganic-organic hybrid composition and use thereof
    30.
    发明授权
    Inorganic-organic hybrid composition and use thereof 有权
    无机 - 有机杂化组合物及其用途

    公开(公告)号:US08399558B2

    公开(公告)日:2013-03-19

    申请号:US12305543

    申请日:2007-06-19

    IPC分类号: C08F136/00 C08F8/42 C08F8/40

    摘要: The present disclosure provides an inorganic-organic hybrid film which is excellent in transparency, adhesion, heat resistance, weatherability, and anti-rust property, whose refractive index may be controlled easily, and which is also excellent in hardness. Also provided are an inorganic-organic hybrid composition as a starting material for the film, and a hard coating material, an optical material, an anti-rust coating material, and a conductive coating material, all utilizing the composition. The composition is characterized by containing organic component (A) composed of monomer component (a1) containing a particular diol (meth)acrylate compound (U) having a urethane bond, or polymer component (a2) containing polymer (P) obtained by polymerization of monomer component (a1), and inorganic component (B), wherein the ratio of the organic component (A) to the inorganic component (B) is 1:99 to 99:1 by mass.

    摘要翻译: 本公开内容提供了透明性,粘合性,耐热性,耐候性和防锈性优异的无机 - 有机杂化膜,其折射率可以容易地控制,并且硬度也是优异的。 还提供了作为膜的起始材料的无机 - 有机杂化组合物,以及全部利用组合物的硬涂层材料,光学材料,防锈涂层材料和导电涂层材料。 该组合物的特征在于含有由含有具有氨基甲酸酯键的特定二醇(甲基)丙烯酸酯化合物(U)的单体成分(a1)构成的有机成分(A),或含有聚合物(P)的聚合物成分(a2) 单体成分(a1)和无机成分(B),其中有机成分(A)与无机成分(B)的比例为1:99〜99:1质量%。