| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-propelled vacuum cleaner for preventing a failure and the deterioration of cleaning efficiency.SOLUTION: A self-propelled vacuum cleaner includes: a self-propelled casing having a suction port in the lower surface; and side brushes arranged on the bottom surface of the casing so as to be rotatable around axial cores vertical to the bottom surface of the casing. A rotational shaft is arranged by projection at each side brush attachment position on the bottom surface of the casing. Each side brush includes: a brush base removably arranged to the rotational shaft; and brush bundles planted in the brush base. A gap having an S shape, U shape, or L shape cross section is formed between the bottom surface of the casing and the brush bases attached to the rotational shafts. |
