Abstract: In a rotary brush wherein the surface of a rotating basic shaft has mounted thereto at least one flexible blade, the surface of the blade made of rubber or a thermoplastic elastomer as its base material and which stands face to face with a surface to be cleaned is covered with a plastic material having wear resistance and slipperiness.

Abstract: A floor cleaner of the present invention has wheels provided on a main body casing which is journaled to a proximal portion of an operation handle, a rotary cleaning body on each side end portion of which is mounted a driven roller which is freely engageable by a respective one of the wheels, individual rotatable auxiliary rotary cleaning bodies located at both side end portions of the main body casing, respectively, and ducts communicating one of the dust collecting chambers, the chambers having dust intakes that respectively face the rotary cleaning body.

Abstract: A rotational cleaning member is mounted transversely at the central portion of a casing, the bottom of which is opened, in a rotatable manner, and driving wheels are positioned on both the right and left sides of the casing to support the same on a floor and to impart a rotating force to the rotational cleaning member. Dust collecting boxes are disposed to the front and rear of the rotational cleaning member, and each of these dust collecting boxes is always urged by spring members in a closing direction thereof. Furthermore, a locking mechanism for imparting a prescribed damping resistance to the dust collecting boxes during opening and closing operations thereof and for maintaining an opened state thereof when the opening operation is completed is provided.

Abstract: A cleaner wherein a rotational cleaning member provided with blades extending radially therefrom is disposed in a casing the bottom of which is opened, and dust collecting boxes are disposed in the front and in the rear of the rotational cleaning member includes. To a roof portion of the casing to which a dust reflecting and introducing plate defined by first and second reflecting plates and a substantially V-shaped section is disposed. An apex angle portion of the reflecting and introducing plate is positioned close to a location which is somewhat lower than the top of the rotational cleaning member.

Abstract: A rotary cleaning member comprises a revolving shaft installed rotatably inside a main body casing, and a plurality of flexible blades provided with a number of projections on the surface thereof abutting upon the surface of a floor, these blades extending radially from the circumference of the revolving shaft one another in a cleaner wherein the rotary cleaning member installed in the main body casing is rotated to spring up dust or the like on the floor, or convey the dust or the like sprung up by means of said rotary cleaning member to a prescribed position for receiving the dust or the like in combination with suction.