Abstract: A joint for floor cleaning machines, comprising: a first portion, a second portion which is articulated to the first portion, a third portion which is articulated to the second portion; the joint comprises: first stable inclination element for the stable inclination of the second portion with respect to the first portion, second stable inclination element for the stable inclination of the third portion with respect to the second portion, the first stable inclination element and the second stable inclination element being connected to a single lever and being operable by the single lever.

Abstract: A sweeping machine for floors and carpets, comprising a body with wheels for gliding and a maneuvering handle, the body supporting at least one cleaning roller that has a horizontal axis and is actuated by an electric motor by virtue of torque transmission elements; there are elements for the suction of air from a region proximate to the at least one cleaning roller, the suction elements being actuated by the same electric motor for driving the at least one cleaning roller.

Abstract: A sweeping machine for floors and carpets, comprising a body with wheels for gliding and a maneuvering handle, the body supporting at least one cleaning roller that has a horizontal axis and is actuated by an electric motor by virtue of torque transmission elements; there are elements for the suction of air from a region proximate to the at least one cleaning roller, the suction elements being actuated by the same electric motor for driving the at least one cleaning roller.

Abstract: A multipurpose tool for cleaning machines, having a body that is interchangeably associable with a cleaning machine provided with an electric motor; the body is movable on wheels and a front advancement part thereof is arranged transversely to a main direction of motion so as to form a housing that is open downward and accommodates a bristled roller that is moved, by virtue of transmission elements, by an electric motor accommodated within the body; the body is articulated to a coupling element that is suitable to provide a detachable connection to the machine with a dirt suction duct. The tool further includes a pair of interchangeable covers that are selectively detachably associable below the housing at an open region where the roller is located, each of the covers having at least one suction slot and elements for closing the region to the rear of the roller between the housing and the floor.

Abstract: A cleaning device such as a carpet cleaner, floorwasher, floor sweeper, polishing machine with two motors, comprising a wheeled base provided with brushing elements driven by a first electric motor; the wheeled base is maneuvered by a handle that supports a suction body that is pivoted to the base; the suction body is provided with suction elements operated by a second electric motor. The first motor and the second motor are both accommodated in a corresponding seat on the wheeled base.

Abstract: A multipurpose tool for cleaning machines, comprising a body that is interchangeably associable with a cleaning machine provided with an electric motor; the body is movable on wheels and a front advancement part thereof is arranged transversely to a main direction of motion so as to form a housing that is open downward and accommodates a bristled roller that is moved, by virtue of transmission elements, by an electric motor accommodated within the body; the body is articulated to a coupling element that is suitable to provide a detachable connection to the machine with a dirt suction duct. The tool further comprises a cover that is detachably associable below the housing at an open region where the roller is located, the cover having at least one suction slot and elements for closing the region to the rear of the roller between the housing and the floor.

Abstract: A multipurpose tool for cleaning machines, comprising a box-like body which is interchangeably associable with a cleaning machine adequately provided with a power outlet and is movable on wheels; a front advancement part of the body is arranged transversely to a main direction of movement, so as to form a housing which accommodates a roller which is provided with bristles and is moved, by way of transmission means, by an electric motor which is accommodated within the body. The body is articulated to a connecting element adapted to provide a detachable connection to the machine with a dirt suction duct. The bristle-fitted roller is replaceable, and an inlet of the suction duct can be opened and closed by way of the presence of a passage flow control flap.

Abstract: A mechanical clutch assembly, particularly for rotary motion transmission shafts in household or professional cleaning machines. The assembly comprises a first driving disk and a second driven disk which are inserted coaxially in a transmission shaft; the first driving disk is fixed to the shaft and the second driven disk is free with respect to the shaft and is associated, so that it is free to perform a translation movement along the axis of the shaft, with a transmission coupling connected to a corresponding cleaning tool. The first and second disks have, on mutually opposite faces, first radially protruding teeth which are adapted to mesh together, so as to ensure the transmission of motion up to a preset value of the torque; the coupling, which is free with respect to the shaft, accommodates pusher elements for the second disk which are adapted to keep the second disk pushed so as to mesh with the first disk up to preset limits of transmitted torque.

Abstract: A tubular extension, particularly for electric household appliances and cleaning machines in general, comprising at least two tubular elements telescopically associated with each other, a first one of these tubular elements being associated coaxially with a second one having a smaller cross-section and being slideable inside the first tubular element, one of these first and second tubular elements having at least one sliding portion whereat the outer or inner lateral surface is shaped so as to form at least one step, wherefrom the cross-section gradually increases radially and along a given peripheral arc, a longitudinal cavity being formed at the peripheral arc, and a tooth having a similar shape fitting snugly and reversibly in the cavity after sliding over a portion of the surface relative to the peripheral arc, the tooth being formed at the inner or outer surface of the other one of the first and second tubular elements on the side where mutual coupling occurs upon assembly.