Patent ID: 7007334
Filing Date: 2006-03-07
Classification: A47L,E04G

Abstract:
1. A cleaning device for a facade surface of a building, comprising at least one elongate wiper strip unit movable back and forth by means of a stationarily arranged drive motor along at least one guide rail unit provided on the facade surface, the wiper unit extending at right angles to the guide rail unit, and comprising at least one cleaning fluid line with which spray nozzles directed towards the facade surface to be cleaned are connected, characterised in that the wiper strip unit ( 10 ) includes at least one carrier ( 19 ) slidingly guided in the guide rail unit ( 6 ) being fixedly connected with a linear driving element ( 32 ) that is movable along the guide rail, the stationarily arranged drive motor ( 45 ) being associated with the driving element, the carrier ( 19 ) being connected with a housing ( 12 ) of the wiper strip unit ( 10 ), in which a wiper strip ( 14 ) is mounted which projects with a longitudinal side thereof through a slot opening ( 13 ) of the housing ( 12 ), the wiper strip being received in the housing ( 12 ) as as to be movable towards and away from the facade surface ( 2 ) and being connected to a a cam follower laterally projecting from the housing ( 12 ) through an opening thereof, which cam follower has at least one associated control cam which is arranged in the region of a facade part that projects horizontally relative to the plane of the facade surface ( 2 ) to be cleaned, the wiper strip ( 14 ) being rearwardly movable in the housing ( 12 ) by the came follower moved via the control cam when the wiper strip travels over the projecting facade part.