Robot cleaner and operating method thereof

  • US 7,359,766 B2
  • Filed: 05/04/2004
  • Issued: 04/15/2008
  • Est. Priority Date: 12/22/2003
  • Status: Active Grant
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First Claim
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1. A robot cleaner, comprising:

  • a suction unit provided at a cleaner body, for sucking dirt on a floor;

    a driving wheel installed at the cleaner body and rotated by the driving motor to move the cleaner body;

    at least one auxiliary wheel installed at a bottom of the cleaner body, for supporting the cleaner body on the floor in a state of being in contact with the floor, and rotated by movement of the cleaner body; and

    a detector installed near the auxiliary wheel for detecting whether the auxiliary wheel is rotated.

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