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Robot cleaner and method for controlling the same

  • US 9,173,539 B2
  • Filed: 10/16/2012
  • Issued: 11/03/2015
  • Est. Priority Date: 10/18/2011
  • Status: Active Grant
First Claim
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1. A robot cleaner for removing foreign matter from a floor while traveling on the floor, comprising:

  • a main brush unit mounted to a bottom of the robot cleaner;

    a plurality of auxiliary cleaning units mounted to the bottom of the robot cleaner, and having a protruded position and a retracted position; and

    a control unit to extend the auxiliary cleaning units to the protruded position while travelling in a wall tracing manner along a periphery of a cleaning region of the robot cleaner.

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