Abstract: A vacuum cleaning tool has a housing having a connecting socket for effecting flow communication to a vacuum device of a vacuum cleaning device. The housing has a suction opening through which a working air flow enters the housing. The housing has an outlet opening through which the working air flow exits from the housing. A cleaning tool is rotatably supported in the housing. An air turbine is rotatably supported in a turbine chamber of the housing and drives the cleaning tool in rotation. A control device controls the drive power for driving the cleaning tool based on a pressure existing in the vacuum cleaning tool.

Abstract: A wheel for an object to be moved on a floor surface has a hub and an outer running surface secured to the hub. The running surface is rotatable about an axis of rotation. A fiber layer of fibers is applied onto the running surface. The fiber layer forms an intermediate layer between a floor surface and the running surface when the wheel moves across the floor surface. The fiber layer is a flocking applied to the running surface.

Abstract: A vacuum cleaning tool has a housing with a working chamber and a connecting socket for a vacuum hose. A brush roller is arranged in the working chamber. An air turbine is arranged in a turbine chamber between working chamber and connecting socket. The working chamber has a bottom with vacuum air ports through which a vacuum air flow enters the working chamber. The housing has an opening between working chamber and turbine chamber and a discharge opening between turbine chamber and connecting socket. The vacuum air flow passes from the working chamber into the turbine chamber and drives the air turbine and then passes through the discharge opening into the connecting socket. The brush roller acts through the vacuum air ports on a surface to be treated. A bushing on which the air turbine is fixedly mounted is rotatably supported on a support shaft mounted in the housing.

Abstract: A vacuum cleaning tool for a vacuum cleaning device has a housing with a working chamber that has a bottom plate provided with a suction slot extending transversely to a working direction of the vacuum cleaning tool. The housing has a housing front wall facing in the working direction. The housing front wall has a receptacle, and an illumination element is arranged in the receptacle for illuminating a working surface of the vacuum cleaning tool. A light-permeable cover closes off the receptacle and covers the illumination element. The illumination element is a cold light lamp emitting cold light.

Abstract: A vacuum cleaning tool has a housing having a turbine chamber and a bottom plate. A working tool is rotatably supported in the housing. An air turbine for driving the working tool is arranged in the turbine chamber and has axial end faces defining a gap relative to the chamber sidewalls. A turbine chamber wall has a first intake window and at least one second intake window. The first intake window supplies a driving suction air stream to the peripheral turbine surface on a first side of a plane that extends through the turbine axis. The second intake window supplies a partial suction air stream to the turbine chamber that enters the turbine chamber on a second side of the plane extending through the turbine axis. The second intake window overlaps at least partially at least one gap and the partial suction air stream flows into the gap.

Abstract: A cleaning tool for a vacuum cleaning device has a housing having a bottom plate with a working slot. A rotatingly driven working tool is rotatably supported in the housing and passes through the working slot to act on a surface to be cleaned. A motor is arranged in the housing and has a motor shaft. A gear system is connected between the motor and the working tool, wherein the gear system has a driving wheel driven by the motor shaft and a driven wheel fixedly connected to the working tool. The driving wheel and the driven wheel are V-belt pulleys and have a peripheral groove, respectively. The gear system further has a V-gear positioned between the driving wheel and the driven wheel, wherein the V-gear has an outer periphery that engages the peripheral grooves for establishing a driving connection between the driving wheel and the driven wheel.

Abstract: A cleaning tool for a vacuum cleaning device has a housing and a motor arranged in the housing. A tool carrier and a rotatingly driven working tool are provided. The working tool has two ends rotatably supported in the tool carrier. The tool carrier and the working tool form a changing unit. The tool carrier is detachably secured on the housing by catch elements. A gear system is connected between the motor and the working tool, wherein the motor drives via the gear system the working tool. The gear system has a driving wheel driven by the motor and a driven wheel fixedly connected to the working tool. The tool carrier and the housing have wall sections that overlap one another and align the tool carrier relative to the housing and the driven wheel relative to the driving wheel when the changing unit is inserted into the housing.

Abstract: A cleaning device for smooth floor surfaces has a housing having a working chamber and a drive chamber. First and second cleaning rollers are rotatably supported in the working chamber and extend transversely to a working direction of the cleaning device substantially across an entire width of the cleaning device. A drive is arranged in the drive chamber and drives the first and second cleaning rollers about a horizontal axis of rotation. The first and second cleaning rollers are height-adjustably arranged in the housing such that an adjusting device acts on the first and second cleaning rollers and moves them into a working position or into a parking position, respectively. The first and second cleaning rollers have a mantle surface projecting in the working position downwardly past a bottom plate of the housing to act on a floor surface.

Abstract: A vacuum cleaning tool of a vacuum cleaning device has a housing with a turbine chamber and a working chamber. The housing has a suction slot extending transversely in the vacuum cleaning tool. A suction airflow generated by the vacuum cleaning device enters the working chamber via the suction slot. First and second flow connections between the working and turbine chambers allow the suction airflow to enter the turbine chamber. An air turbine in the turbine chamber is rotatably driven by the suction airflow and drives a cleaning tool in the working chamber. The housing has an outlet opening allowing the suction airflow to exit the turbine chamber. The first and second flow connections are located on opposite sides of an imaginary plane defined by the axis of rotation of the air turbine and a center of the outlet opening. The cross-section of one of the flow connections is adjustable.

Abstract: A vacuum cleaning tool has a housing with a partition dividing an interior of the housing into a brush chamber and a turbine chamber. A vacuum connector is connected to the housing remote from the brush chamber. A working roller is arranged in the brush chamber. An air turbine is arranged in the turbine chamber and drives in rotation the working roller. A vacuum air flow enters the brush chamber, flows from the brush chamber through an intake window into the turbine chamber, flows within the turbine chamber through the air turbine, and exits from the turbine chamber to the vacuum connector. The turbine chamber has a chamber bottom with a ramp ascending toward the outlet window in the area where the vacuum airflow exits from the turbine chamber. The ramp is through-shaped and has a groove extending in the flow direction of the vacuum airflow.

Abstract: A vacuum cleaning tool has a housing with a brush chamber and a turbine chamber. A vacuum connector is connected to the housing remote from the brush chamber and has an outlet window. A working roller is arranged in the brush chamber and driven by an air turbine in the turbine chamber. The air turbine has an annular vane arrangement with vanes. The vacuum airflow enters the brush chamber via a suction slot, flows from the brush chamber into the turbine chamber, passes through the air turbine, and exits through the outlet window of the vacuum connector. In the flow direction of the vacuum airflow the outlet window is higher than the intake window. A connecting line between central areas of the intake and outlet windows intersects the air turbine as a secant to define a circle segment in which four to six of the vanes of the annular vane arrangement are located.

Abstract: A vacuum cleaning tool has a housing with a brush chamber and a turbine chamber. A vacuum connector is connected to the housing remote from the brush chamber. A brush roller is arranged in the brush chamber and an air turbine is arranged in the turbine chamber for driving the brush roller. A vacuum airflow enters the brush chamber via a suction slot, flows from the brush chamber into the turbine chamber, flows within the turbine chamber through the air turbine, and exits from the turbine chamber into the vacuum connector. The turbine chamber has an intake cross-section transverse to a flow direction of the vacuum airflow that is greater than an outlet cross-section at the turbine chamber end facing the outlet window. Intermediate cross-sections of the interior of the turbine chamber decrease in a direction toward the turbine chamber end such that the turbine chamber tapers toward the outlet cross-section.

Abstract: A vacuum cleaner head has a housing having a turbine chamber and a connection tube connecting the turbine chamber to a suction aggregate of a vacuum cleaning machine. The housing has a suction opening and the turbine chamber has an inflow opening communicating with the suction opening. Air flow is sucked in by the suction aggregate through the suction opening and the inflow opening. A rotary roller brush is mounted in the housing close to the suction opening such that bristles of the roller brush project outwardly through the suction opening when the brush is in a lowest position. An air turbine is mounted in the turbine chamber such that the air turbine is acted upon by the air flow passing through the inflow opening. A device is provided for axially displacing the air turbine relative to the inflow opening when the power uptake of the roller brush is reduced.

Abstract: A vacuum cleaning tool, especially a suction nozzle for the floor, is provided. The tool includes a housing having a suction chamber that is connected to a vacuum cleaning unit by a connector. Disposed in the suction chamber is a brush roller, the bristles of which extend through a suction opening. The brush roller is rotatably disposed in the housing between lateral mounting pieces, which are held by respective pivot arms in such a way on a pivot element provided in the housing that the brush roller can be pivoted out of the suction chamber about a pivot axis that is disposed approximately parallel to the brush roller. One of the pivot arms is detachably connected with the pivot element via a plug connection, which is provided with electrical plug contacts via which the electrical line of an electric drive motor disposed in the brush roller can be connected with an external power source.

Abstract: A vacuum cleaning tool having a housing that includes a connector for a vacuum hose of a vacuum cleaning apparatus is provided. Disposed in a brush chamber of the housing is a brush roller, the bristles of which project through a vacuum slot formed in the base plate of the housing. The brush roller is driven via a belt drive by an air turbine, which is provided in a turbine chamber of the housing. Provided between the brush chamber and the turbine chamber is a guide member for guiding the suction air stream that is to act upon the air turbine. In order when the vacuum cleaning tool is raised from the floor to reduce the drive power, the guide member is pivotably mounted in the housing of the tool. In a first operating pivot position the suction air stream is directed essentially tangentially against the air turbine to achieve a high drive power. In a second, non-operative pivot position the suction air stream is directed essentially radially against the turbine to achieve a low no-load speed.

Abstract: A coupling of a suction nozzle, with a connector of a suction hose of a vacuum cleaner being rotatably mounted in the coupling, whereby the connector, on an end thereof that faces the suction nozzle, is provided with a larger diameter flange that for the axial fixation and rotatable mounting of the connector extends into an undercut of a cylindrical receiving opening of the coupling. A sleeve is provided between the connector and the receiving opening of the coupling. Cooperating arresting means are provided on the sleeve and the coupling for connecting the same, whereby the sleeve, together with the coupling, form the undercut thereof.

Abstract: An adjustment mechanism for a friction drive unit. To adjust the contact pressure between the friction wheel and a cooperating wheel of the friction drive unit, one of these wheels is mounted on a lever that is pivotable about a pivot axis. A cam that applies the contact pressure rests against the lever. The spacing of the cam relative to the pivot axis of the lever is variable.

Abstract: A suction nozzle for a vacuum cleaner, including a brush that is disposed in the suction nozzle and is driven by a battery-powered electric motor. The suction nozzle is in flow communication with the vacuum cleaner via a suction hose. The suction nozzle is provided with a shaft for guiding and handling same. At least one bracket is disposed in the vicinity of the guide shaft for accommodating at least one battery for the electric motor.