Abstract: A brush vacuum cleaner having a floor brush set with a driven brush roller having an overload protection. The brush set has at least one electric motor for a suction fan and for the drive of the brush roller, which includes a torque detecting unit. A safety shutdown is accomplished via a switch arrangement above an overload torque threshold. A driven element of the torque detection unit is disposed in the drive train which, above the torque threshold, is coupled via a switchable coupling element to an eddy current disk made of electrically conductive material. The eddy current disk has at least one magnet pivotably positioned on a fixedly mounted movable support. An adjustment of the support is made by a magnetic field of the coupled eddy current disk formed by the generated eddy current. The support controls a corresponding circuit arrangement such as a switching element as safety cut-off.

Abstract: In a vacuum cleaner it is provided that a brush set can be connected via a pivotable connecting element in the form of a connecting piece for an attachable filter housing to a handle in the form of a hand grip. Here the brush set has an electric motor for a suction fan and for the drive of the brush roller. The pivotable connecting element of the brush set has an external connector plug for an electrical connection to an appliance coupling of a power line connection lead for connection to a power supply, for example, for connection to a wall socket and the like. As a result, the brush set with the integrated motor and a switch for operating control forms a functional electrical unit.

Abstract: A floor care appliance having a height-adjustable brush set. A pushbutton of the brush set is actuatable for height adjustment via a manual suction tube of the floor care appliance. The pushbutton has a receptacle for receiving an edge region of a manual suction tube and/or for foot actuation.

Abstract: A brush vacuum cleaner having a safety shutdown of the drive via an overload brush roller torque detection. A mechanical triggering element via transmission elements actuates an electrical switch for the main switch to shut down the drive above a torque threshold. The switch is additionally connected in parallel by an external actuating element to an on and off position by a spring-loaded control element and a coupling element. Due to the control element, switching the switch into an off position due to overload is transmitted to the actuating element that can be adjusted into an off position. The control element is spring held in the on position in an arrangement for the engagement of the control element, where an unlocking can be set as off position by adjustment of the control element via the actuating element against the spring pressure.

Abstract: A brush vacuum cleaner having a brush set facing the floor with a driven brush roller, wherein the brush set can be connected via a pivotable connecting element in the form of a connecting piece for a filter housing attachable to a handle having a hand grip. The brush set accommodates an electric motor for a suction fan and for the drive of the brush roller. An electrical switch is provided for switching the electric motor on and off which is disposed on the side wall as a lateral flank of the brush set in the form of a foot operated switch. The switch with its external control surface projects outwards with respect to the side wall in the switched-off position whereas in the switched-on position the control surface ends with neighboring or adjacent surface sections of the side wall without overhang.

Abstract: A rotating brush roller of a floor care device is a cylindrical rotational element including a hollow body as a central piece and end pieces to be supported via bearings in a brush housing of the floor care device. A spiral, outwardly open, receiving shaft or groove is provided in the outer circumferential surface of the hollow body for receiving and retaining therein a continuous spiral brush strip. The central piece is a self-supporting hollow body of plastic, into opposite ends of which the end pieces engage with a form-fitting connection. The receiving shaft for receiving the brush strip continues at least partially in the end pieces.

Abstract: A brush vacuum cleaner having a brush set for receiving a driven brush roller, wherein at least one electric motor for a suction fan and for the drive of the brush roller is disposed in the brush set and wherein at least three air guiding channels are formed in a pivotable connecting element between the brush set and a filter housing. A supply of the dirt-laden suction air from the brush set to the filter housing takes place through the first air guiding channel, the filtered air is returned to the brush set through the second air guiding channel and through the third air guiding channel exhaust gas of the suction fan is returned to the filter housing to an air outlet.

Abstract: A floor care appliance in the form of a brush vacuum cleaner having a brush set facing the floor for receiving a driven brush roller with an overload protection. A drive disk is mounted rotatably on the shaft and the shaft has a torque-proof output element to the brush roller and the drive disk is coupled via a torsion spring to a coupling disk which is displaceable axially on the shaft and which is coupled in a torque-proof manner via cams to the shaft. Ramps are formed on the drive disk which, above a torque threshold, axially adjust the coupling disk with corresponding ramps by relative twisting. A safety shutdown can be controlled via the adjusting movement via a corresponding switching element of a circuit arrangement.

Abstract: A rotating brush roller for a floor cleaning device has its ends supported via a bearing in a support arrangement of a brush housing. A brush strip is received in a spiral groove in an outer circumferential surface of the brush roller. The support arrangement includes a stationary cover and defines an access opening. A removable cover is releasably secured to the brush housing by a catch element, and selectively covers or uncovers the access opening, allowing access to the brush strip at an end of the spiral groove. A first deflector element on the stationary cover and a second deflector element on the removable cover together form a thread deflector that cooperates with a counter element on the end of the brush roller.

Abstract: A vacuum cleaner includes a variable speed suction motor and an illuminatable motor speed indicator having plural lights arranged in a circular pattern or annular ring pattern, for example around a motor speed control switch. A control unit includes an indicator controller and a motor controller that respectively control the illuminatable indicator and the motor, based on inputs from the motor speed control switch and optionally at least one sensor that senses operating conditions of the vacuum cleaner. The lights are successively activated and deactivated to create a visible light spot that appears to rotate around the circular or annular ring pattern at a light rotation rate related to and indicative of the motor rotation speed. Thereby the indicator allows the vacuum suction power to be visually monitored.

Abstract: A vacuum cleaner has a lid that selectively opens or closes a filter bag compartment. A secondary motor protection filter is removably mounted in the lid by a frame of an elastic material that simultaneously seals the secondary filter element to the lid and seals the lid onto the bag compartment. An air passage flows between the secondary filter and the lid through a duct to the suction motor compartment. A perimeter groove in the lid receives a spline of the elastic frame of the filter element in a removable manner, while the opposite surface of the frame forms the seal surface relative to a housing rim around the bag compartment.

Abstract: In a bearing arrangement (A) of a rotating brush roller (1), wherein the brush roller (1) is arranged by outwardly located end pieces via a bearing (10) in a support arrangement (9) of a brush housing (15), and the brush roller (1) (comprises) a spiral-shaped receiving shaft with an outwardly located through passage area for receiving and retaining a continuous brush strip (2) as well as an end face opening for provision and removal, it is provided that the outer area is covered by a closure part. In this regard, the closure part has a releasable sub-element (5) as a continuation part of the support arrangement (9), which uncovers an end face opening to the receiving shaft to the brush strip (2). The sub-element (5) is releasably fixable by a catch element (4) for a corresponding unlockable counter support (13) in the brush housing (15), and for forming a thread deflector has a deflector element (7) of metal in continuation of a stationary deflector element (11) of the closure part.

Abstract: A filter bag of a vacuum cleaner has a filter mounting plate that includes a generally strap-shaped securing element with pivot members on an end thereof. A housing of the vacuum cleaner defines a filter bag compartment therein and has pivot receivers into which the pivot members can be substantially vertically inserted. Then the filter mounting plate can be pivoted into a substantially horizontal installed position as the filter bag is inserted into the filter bag compartment. In the installed position, a first stop member of the filter mounting plate contacts and is stopped by a second stop member of the housing so as to prevent further pivoting and so as to properly position and hold the filter mounting plate.

Abstract: On a brush roller (A) of a floor care device with a rotating brush roller as a cylindrical rotational element, wherein the brush roller (A) as a hollow body is arranged by outwardly located inserted end pieces (4, 5) via bearings in a brush housing. In this regard it is provided to arrange in a spiral-shaped extending receiving shaft (2) in the outer circumferential surface area of the hollow body with an outwardly located through passage area for receiving and retaining a continuous brush strip (3). In that regard, a central segment (1) is embodied as a self-supporting hollow body of plastic, into which the outwardly located end pieces (4, 5) engage with a form-fitting connection, and the end pieces (4, 5) at least partially continue the receiving shaft (2).

Abstract: A method of cleaning dirt and debris from surfaces using a cleaning device, such as a vacuum cleaner. The cleaning device has a handle unit which is attached to the body of the cleaning device adjacent a filter compartment. The handle unit has a handle portion that is spaced from the filter compartment to allow a user to place his or her hand through the space and grasp the handle portion and thereby carry the cleaning device using only the handle unit. The handle unit can also be detached from the body of the cleaning device, and then later re-attached, via lockable mating connecting elements.

Abstract: A floor care disk for a floor care machine such as a floor polishing machine includes a floor care pad mounted on a drive plate. The drive plate includes a stiff disk element and tongue-like tabs connected flexibly to a radially outer portion or rim of the disk element, and extending radially inwardly toward a radially inner portion or hub of the disk element. The radially inner free ends of the tongue-like tabs are free to flexibly deflect away from the plane of the disk element. The pad is mounted on the tabs and on the radially outer portion of the disk element. During rotational operation of the floor care disk, due to the arising centrifugal force acting on the center of mass of the rotating pad and tongue-like tabs, the pad and the tongue-like tabs are flexibly deflected away from the disk element and toward the floor surface, thereby deflecting the pad into osculating contact with the floor surface.

Abstract: A floor care machine such as a floor polisher includes a machine frame carrying a motor coupled through a drive arrangement to a rotationally driven head on which a floor care disc such as a polishing pad is mounted. The drive arrangement includes a drive element rotationally driven by the motor, and a driven element that is connected to the driven head and is automatically height adjustable. The drive element includes a bearing hub, an outer ring and four uniformly rotationally offset spokes that carry first rolling guides extending along helical paths about the rotation axis. The driven element includes upper and lower partial elements that receive the spokes therebetween and carry second rolling guides arranged facing the first rolling guides along the helical paths, and roller bodies are interposed therebetween. Relative rotation between the drive element and the driven element causes an axial height adjustment of the driven head.

Abstract: A filter bag of a vacuum cleaner has a filter mounting plate that includes a generally strap-shaped securing element with pivot members on an end thereof. A housing of the vacuum cleaner defines a filter bag compartment therein and has pivot receivers into which the pivot members can be substantially vertically inserted. Then the filter mounting plate can be pivoted into a substantially horizontal installed position as the filter bag is inserted into the filter bag compartment. In the installed position, a first stop member of the filter mounting plate contacts and is stopped by a second stop member of the housing so as to prevent further pivoting and so as to properly position and hold the filter mounting plate.

Abstract: A vacuum cleaner has a lid that selectively opens or closes a filter bag compartment. A secondary motor protection filter is removably mounted in the lid by a frame of an elastic material that simultaneously seals the secondary filter element to the lid and seals the lid onto the bag compartment. An air passage flows between the secondary filter and the lid through a duct to the suction motor compartment. A perimeter groove in the lid receives a spline of the elastic frame of the filter element in a removable manner, while the opposite surface of the frame forms the seal surface relative to a housing rim around the bag compartment.

Abstract: A brush roll is rotatably supported by bearings in a housing of a cleaning brush tool. One of the bearings is incorporated in a removable bearing arrangement that can be rotationally fastened and removed as needed on a cylindrical end of the housing. Preferably collar elements protruding cylindrically from the removable bearing arrangement form bayonet-type catch hooks that selectively engage with bayonet-type catch elements protruding radially outwardly from the cylindrical end sleeve of the housing. A detent on the housing engages a securing element on the removable bearing arrangement to secure the engaged bayonet-type fastening arrangement against rotational release thereof.