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Hub motor structure

  • US 9,221,516 B1
  • Filed: 01/08/2015
  • Issued: 12/29/2015
  • Est. Priority Date: 12/18/2014
  • Status: Active Grant
First Claim
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1. A hub motor structure installed on a bicycle, the hub motor structure comprising:

  • a hollow shaft installed on a frame of the bicycle;

    a housing rotatably installed on the hollow shaft, and connected to a wheel at an outer circumferential surface thereof through spokes;

    a cover rotatably installed on the hollow shaft while installed on the housing, and on which a driven sprocket connected to a chain is provided to receive a pedaling force;

    a motor disposed in the housing and generating a rotary force to drive the wheel;

    a continuous variable transmission (CVT) disposed in the housing to selectively shift power supplied from the motor;

    a power transmission unit configured to transmit a rotary force of the motor to the CVT; and

    a gear unit configured to transmit a rotary force output from the CVT to the housing.

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