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    • 10. 发明授权
    • Power transmission device
    • 动力传动装置
    • US07837563B2
    • 2010-11-23
    • US11902498
    • 2007-09-21
    • Motohiko UedaHiroki Ishii
    • Motohiko UedaHiroki Ishii
    • F16D7/02
    • F16D7/024F16D43/213
    • In a power transmission device 41, a tapered inner circumferential surface 79 increasing its diameter toward a rotating shaft body 47 is formed in a hub 75, and a tapered outer circumferential surface 83 increasing its diameter toward the rotating shaft body 47 is formed in a tubular member 81 and press-fitted to the tapered inner circumferential surface of the hub 75 so that, when an excessive load is applied between a rotating body 45 and a pulley 69, the hub 75 rotates with respect to the rotating shaft 45 and the tubular member 81 is withdrawn from the tapered inner circumferential surface 77 of the hub 75 and power transmission between the rotating shaft 45 and the pulley 69 is interrupted. Therefore, variation of working torque can be reduced.
    • 在动力传递装置41中,在轮毂75上形成有使其直径向旋转轴体47增大的锥形内周面79,并且朝向旋转轴体47的直径增大的锥形外周面83形成为管状 构件81并压配合到毂75的锥形内周面,使得当在旋转体45和滑轮69之间施加过大的负载时,轮毂75相对于旋转轴45旋转,并且管状构件 81从轮毂75的锥形内圆周表面77撤回,并且转动轴45和滑轮69之间的动力传递被中断。 因此,可以降低工作扭矩的变化。