| 摘要 |
A robot cleaner is provided to improve sucking efficiency of the dust by placing the suction auxiliary wall at the outside of the dust suction port, and reduce cost by simply assembling the suction auxiliary wall at the lower case. A robot cleaner for removing impurities on a floor part(F) is composed of: a lower case; and an upper case. The lower surface of a lower case contains inner vertical walls(12) projected to cover a dust sucking hole and an outer vertical wall(13) formed with a recessed groove part(14) between the inner vertical walls. A suction auxiliary wall(30) is movably placed between the inner and outer vertical walls. The suction auxiliary wall is formed with plural hanging protrusions(31), guide rods(32) projected at both sides, and a spring(34) fitted in the guide rod. The suction auxiliary wall is formed with a flange(33) at the area contacted with the floor part so as to extend the contacted area with the floor part.
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