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DRIVING WHEEL ASSEMBLY AND ROBOT CLEANER HAVING THE SAME

  • US 20130056290A1
  • Filed: 08/21/2012
  • Published: 03/07/2013
  • Est. Priority Date: 09/01/2011
  • Status: Active Grant
First Claim
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1. A robot cleaner comprising:

  • a main body; and

    a driving wheel assembly, comprising;

    a driving wheel to drive the main body;

    a housing;

    a driving motor connected to one side of the housing to generate rotary force to rotate the driving wheel;

    a rotary member with rotation around a rotation shaft of the driving motor, wherein the rotary member comprises a first unit to which the driving wheel is connected and a second unit disposed at a position opposite to the driving wheel with respect to the rotation shaft of the driving motor; and

    a compression coil spring disposed between the housing and the second unit to apply pressure to the second unit,wherein a distance between a contact point where the compression coil spring and the second unit contact and the rotation shaft of the driving motor is shorter than a distance between a rotation shaft of the driving wheel and the rotation shaft of the driving motor.

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