| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic window cleaning device constructible with the reduced size and weight at a low cost and causing no damage of a building due to a power feeding/signal transmitting cable or breakage of the cable. SOLUTION: This automatic window cleaning device 1 is constructed of a cleaning device 10 suspended and supported liftably via a wire rope suspended from a roof car arranged on a roof of the building, and the cleaning device 10 is provided with a battery 71, from which electric power is supplied to respective cleaning functional mechanisms of the cleaning device 10 for driving them.
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