Window cleaning device

Abstract

The present invention relates to a window cleaning device including a first cleaner and a second cleaner which are respectively attached on both sides of a window by magnetism. The device includes a first magnetic module included in the first cleaner; a second magnetic module included in the second cleaner; and a wheel part which is provided to at least one among the first and the second cleaner and moves the window cleaning device, wherein the wheel part includes a wheel having a plurality of holes at an external diameter part; a wheel cover made of an elastic material which surrounds the external diameter part of the wheel and generates frictional force by coming in contact with the window; and a wheel bearing which is connected to the wheel and delivers turning force, and a part of the wheel cover is inserted into the holes formed at the external diameter part of the wheel.

Dependencies are inferred from the claim text.