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    • 1. 发明申请
    • WORM GEAR MECHANISM
    • WORM齿轮机构
    • US20090241712A1
    • 2009-10-01
    • US12388023
    • 2009-02-18
    • Yasuaki SuzukiYuki Okabe
    • Yasuaki SuzukiYuki Okabe
    • F16H1/16
    • F16H1/16Y10T74/19828
    • A worm gear mechanism includes a worm wheel having a central axis; and a worm shaft made of resin having a rotational axis and a plurality of geared portions which engages with the worm wheel, the worm shaft allowing the worm wheel to rotate about the central axis of the worm wheel when rotating about the rotational axis of the worm shaft, tooth root portions of the geared portions being configured to have a profile which varies gradually along an axial direction of the worm shaft relative to a datum line being perpendicular to the axial direction of the worm shaft and passing through the central axis of the worm wheel.
    • 蜗轮机构包括具有中心轴线的蜗轮; 以及由具有旋转轴线的树脂制成的蜗杆轴和与蜗轮啮合的多个齿轮部分,蜗杆轴允许蜗轮围绕蜗轮的中心轴线旋转,当绕蜗杆的旋转轴线旋转时 所述齿轮部的齿根部被构造成具有沿着所述蜗杆的轴向方向逐渐变化的轮廓,所述轮廓相对于垂直于所述蜗杆轴的轴向并穿过所述蜗杆的中心轴线的基准线 轮。