Cleaning device

摘要

A cleaning device includes a cylindrical brush which is mounted in a housing for rotation about an axis transverse to the direction of movement of the cleaning device over the surface to be cleaned. The brush has at least two sections which are independently driven into rotation about their axis by wheels which are also mounted in the housing. Motion is transmitted between the wheels and the two sections of the brush so that, when wheels on one side of the housing rotate at a different speed than the wheels on the other side of the housing, the rotations of the two sections of the brush about the axis are also different. A connecting element connects the two end portions of the sections of the brush which are adjacent to one another. Such connecting element may be connected to one of the sections of the brush for shared rotation therewith, or may connect the respective end portions with freedom of rotation relative thereto. An arrangement for adjusting the distance of the brush from the surface to be cleaned may be provided. The dirt picked up from the surface by the brush is deposited into a pair of receptacles arranged alongside the brush.