FACADE CLEANER

摘要

A remote controlled cleaner for high rise buildings has cleaning head (50) suspended by cables so as to traverse up and down the façade. Differential feeding of cables tilts head (50) thereby steering it to compensate for prevailing winds. Cleaning head (50) carries co-axial, contra-rotating, circular brushes (60­61), or orbiting linear brushes, supplied with cleaning fluid which is recycled to reservoir (17) by scoops (156). Inside circular brushes (60-61), vacuum wheels (120) roll over the façade. Gripping by successive, passive, vacuum cups of wheels (120) prevents movement of head (50) by winds and continues grip on the building even if power fails. ï ex III TEXT OF THE ABSTRACT (Continuation of item 5 of the first sheet) A remote controlled cleaner for high rise buildings has cleaning head (50) suspended by cables so as to traverse up and down the façade. Differential feeding of cables tilts head (50) thereby steering it to compensate for prevailing winds. Cleaning head (50) carries co-axial, contra-rotating, circular brushes (60­61), or orbiting linear brushes, supplied with cleaning fluid which is recycled to reservoir (17) by scoops (156). Inside circular brushes (60-61), vacuum wheels (120) roll over the façade. Gripping by successive, passive, vacuum cups of wheels (120) prevents movement of head (50) by winds and continues grip on the building even if power fails.