Patent ID: 8793831

Claim:
A cleaning device to wipe a surface to be cleaned with a cleaning sheet which is attached as covering a cleaning surface being a lower face of a base body, comprising: a cleaning device body which comprises a cleaning head and a base body attached as covering a lower face of the cleaning head; and a handle portion which is attached to a face at the opposite side to the lower face of the cleaning head, wherein the lower face of the base body comprises a wave-like corrugated surface portion of which cross-section in a direction perpendicular to a predetermined direction along which cleaning is performed with the cleaning device body in a planar view is wave-shaped as having a ridge portion and a valley portion arranged alternately and continuously; the valley portion of the wave-like corrugated surface portion comprises an oblique valley portion of which an end part is opened to a side portion of the base body facing to the predetermined direction as being extended obliquely against the predetermined direction; the wave-like corrugated surface portion is arranged as a part of a corrugated surface extended in a watering manner over an entire surface of the base body; and the corrugated surface extended in a watering manner is a corrugated surface extended over the entire surface of the base body as being circle-shaped or rhomboid-shaped.