| 摘要 |
PURPOSE: A window cleaning apparatus is provided to improve cleaning efficiency by using a turning force and a frictional force, wherein a first brush and a second brush form a cylindrical shape and rotates to clean a window. CONSTITUTION: A window cleaning apparatus comprises a first main body(100), a first brush(110), a first brush driving motor(120), a first driving magnet motor(130), a first magnet(140), and a second main body. The first brush driving motor is rotatably installed on the first main body. The first driving magnet motor is rotatably installed on the left and the right side of the center part of the first main body. The first magnet is installed between the first brush driving motor and the first driving magnet motor. The second main body attached to the other side of a window is provided with a second brush, a second brush driving motor for the second motor which is rotatably installed together with a second magnet driving motor, and a second magnet having an opposite magnetic force, thereby cleaning the other side of a window by the first and the second main bodies attached by magnetic forces with a window at the center plane.
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