| 摘要 |
The invention relates to the field of washing and cleaning residential premises, and more particularly to mechanical devices for cleaning and washing windows at the front of a building. The technical result is that of creating a window cleaning device which provides that a window cleaning blade is applied with constant pressure to a window glass. The technical result is achieved in that in the device, which comprises a helical guide, an electric drive, a carriage and a window cleaning blade, the carriage is provided with a stop, on the opposite side of the carriage from the blade in relation to the axis of the helical guide, said stop being designed to be capable of preventing the carriage from turning as it travels along the helical guide. |
