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    ELECTRIC POWER STEERING SYSTEM
    1.
    发明公开
    ELECTRIC POWER STEERING SYSTEM 审中-公开
    ELEKTRISCHES SERVOLENKSYSTEM

    公开(公告)号：EP2921372A1

    公开(公告)日：2015-09-23

    申请号：EP13855855.6

    申请日：2013-07-26

    申请人： NSK Ltd.

    发明人： KICHIKAWA Takefumi ,  MURAKAMI Takeshi ,  YAMAMOTO Takeshi ,  MAEDA Atsushi ,  ISHI Tatsuya

    IPC分类号： B62D5/04 ,  F16C19/06 ,  F16C35/067

    CPC分类号： B62D5/0403 ,  B62D5/0409 ,  B62D6/10 ,  F16C19/26 ,  F16C19/54 ,  F16C19/56 ,  F16C35/042 ,  F16C35/06 ,  F16C35/067 ,  F16C2240/80 ,  F16C2326/24

    摘要： In an electric power steering system according to the present invention, a housing member for bearings, which supports at least one rolling bearing, is formed of resin. It is preferable that the resin: can be used continuously in an environment of -40 to 85°C; comprises a resin composition that contains a fibrous filler at 30-55 mass%; has a linear expansion coefficient in the range of 1.2x10 -5 -5.5x10 -5 (1/°C) in both the fiber direction and the direction orthogonal thereto at temperatures in the range of 23 to 80°C; and has a water absorption rate of equal to or less than 4% when left in 23°C water for 24 hours.

    摘要翻译： 在根据本发明的电动助力转向系统中，用于轴承的支承至少一个滚动轴承的壳体构件由树脂形成。 树脂优选可以在-40〜85℃的环境下连续使用; 包含含有30-55质量％的纤维填料的树脂组合物; 在23〜80℃的温度范围内，在纤维方向和与其正交的方向上的线膨胀系数在1.2×10 -5 -5.5×10 -5（1 /℃）的范围内; 并且当在23℃水中放置24小时时，其吸水率等于或小于4％。

    ELECTRIC ASSIST DEVICE
    2.
    发明公开
    ELECTRIC ASSIST DEVICE 有权
    LEISTUNGSHILFSVORRICHTUNG

    公开(公告)号：EP2762385A1

    公开(公告)日：2014-08-06

    申请号：EP12834901.6

    申请日：2012-09-28

    申请人： NSK Ltd.

    发明人： KIYOTA Haruhiko ,  MURAKAMI Takeshi

    IPC分类号： B62D5/04 ,  G01L5/22

    CPC分类号： B62D5/0403 ,  B62D5/0409 ,  B62D6/10 ,  G01L3/101 ,  G01L5/221

    摘要： A power assist apparatus includes an electric motor, a speed reducer, an annular torque sensor, a housing in which the speed reducer and the torque sensor are arranged, and an annular center aligning bracket. The housing includes a first housing element and a second housing element, and one of the first housing element and the second housing element is made of a synthetic resin. The center aligning bracket is fixed to the one of the first housing element and the second housing element by insert molding such that the center aligning bracket is concentric to the one of the first housing element and the second housing element. The first housing element and the second housing element are joined such that the first housing element and the second housing element are engaged with each other in an axial direction of the torque sensor via the center aligning bracket.

    摘要翻译： 动力辅助装置包括电动机，减速器，环形扭矩传感器，其中设置有减速器和扭矩传感器的壳体和环形中心对准支架。 壳体包括第一壳体元件和第二壳体元件，并且第一壳体元件和第二壳体元件中的一个由合成树脂制成。 中心对准支架通过插入模制固定到第一壳体元件和第二壳体元件中的一个，使得中心对准支架与第一壳体元件和第二壳体元件之一同心。 第一壳体元件和第二壳体元件被接合，使得第一壳体元件和第二壳体元件经由中心对准支架在扭矩传感器的轴向方向上彼此接合。