Abstract: A surface cleaning machine is provided, including a cleaning roller holder, at least one cleaning roller which is arranged on the cleaning roller holder, a drive device for driving the at least one cleaning roller in rotation, and a sweeping element which is associated with the at least one cleaning roller and which feeds swept material to the at least one cleaning roller, wherein the sweeping element, at least during a cleaning operation, projects with a front region into a jacket of the at least one cleaning roller, wherein a front face end of the sweeping element is arranged on the front region.

Abstract: A motor pump unit for a high-pressure cleaning appliance is provided, in which the cleaning liquid conveyed by the pump assembly is used for cooling the motor, comprising a motor housing which surrounds the motor, and a cooling channel which surrounds the motor and through which the cleaning liquid can flow for heat dissipation. To provide a motor pump unit having a level of electrical safety which is higher than that of a conventional motor pump unit, the cooling channel surround the motor housing, and the motor pump unit comprise at least one thermally conductive spacer element by way of which the cooling channel is spaced from the motor housing. A high-pressure cleaning appliance is also provided.

Abstract: A vehicle washing installation is provided including first and second supports on which a horizontal roof wash brush and a roof drying unit are held for movement between an upper and a lower end position, and a splash guard element arranged between the roof wash brush and the roof drying unit at the upper end position. The splash guard element has a recess extending in the area between a lateral edge and a lower edge of the splash guard element and into which a part of the roof drying unit in its upper end position extends, wherein the lower edge has a drain channel extending over the width of the splash guard element, the drain channel having an end section movable between a first position where it extends over the entire width of a recess and engages under the recess and a second position where it releases the recess.

Abstract: A floor cleaning machine is provided, in particular a hand-guided and/or hand-held floor cleaning machine, including a support device, at least one cleaning roller arranged on the support device, capable of being driven in rotation and provided with a cleaning substrate, a fan device for creating a suction flow, and a suction channel device for the suction flow which provides a suction channel operatively connected for fluid communication between the fan device and the at least one cleaning roller, wherein the suction channel has a mouth towards the at least one cleaning roller that includes a first and a spaced second mouth wall having a mouth opening therebetween, wherein the first mouth wall is positioned above the second mouth wall relative to the direction of gravity, wherein the first and/or second mouth wall are/is in contact against or protrude(s) into the cleaning substrate of the at least one cleaning roller.

Abstract: A valve gun for a high-pressure cleaner is provided, including an inlet channel with an inlet for supplying a pressurized liquid and an outlet channel with an outlet for discharging the liquid, a valve arranged in the flow path between the inlet and the outlet, a triggering member manually movable between a rest position and a release position for opening and closing the valve, a first locking member manually movable between a locking position and an unlocking position for locking the triggering member in the rest position, and a handgrip graspable by the user. In order to further develop the valve gun such that it is easier to handle, the triggering member can be arranged at the rear side of the handgrip that faces away from the outlet, and that the first locking member can be arranged at the front side of the handgrip that faces the outlet.

Abstract: A cleaning tool for a floor cleaning appliance is provided, including a main body carrying a cleaning cover which is subject to wear, and including a signal transmitter which provides a wireless signal in dependence upon the degree of wear of the cleaning cover. To be able to detect in a cost-effective manner when a maximum admissible degree of wear of the cleaning cover is reached, the signal transmitter is of rigid construction and fixed to a movable carrying part, the carrying part being held on the main body and being movable from a normal position to an evasive position against a restoring force, the carrying part protruding further from the main body in the normal position than in the evasive position, and the carrying part and/or the signal transmitter contacting the floor surface to be cleaned when a maximum admissible degree of wear of the cleaning cover is reached.

Abstract: A method for monitoring an operation location of a surface processing apparatus is provided, wherein a surface processing apparatus is allocated to a spatially delimited operation area by way of an allocating unit, and wherein the position of the surface processing apparatus is established, and it is determined whether the surface processing apparatus is disposed inside or outside the operation area. For versatility, the surface processing apparatus is allocated to a first operation area and at least one second operation area that is spatially separated from the first operation area, and it is determinable whether the surface processing apparatus is disposed outside the first operation area but inside the at least one second operation area. Furthermore, the invention relates to a monitoring system for performing the method.

Abstract: A self-propelled surface cleaning machine is proposed, including a floor cleaning device, a steerable front wheel, a steering device associated with the front wheel, a rear wheel device having at least one left rear wheel and at least one right rear wheel, a first drive device for driving the front wheel, a second drive device for driving the rear wheel device and a differential device for the rear wheel device that allows different speeds of rotation for the at least one left rear wheel and the at least one right rear wheel.

Abstract: A piston pump for a high-pressure cleaning appliance is provided, which includes a plurality of pistons that are movable back and forth and each of which enters a pump chamber and is displaceably held at a piston guiding part. The piston guiding part has a supporting wall on which a plurality of guiding elements, each of which guides a piston, are disposed. In order to be able to produce the piston pump in a more cost-effective manner, it is proposed according to the invention that the supporting wall is curved.

Abstract: A manually guided floor cleaning machine is provided, including a chassis with a front end and a rear end in relation to a straight ahead forward travel direction, a wheel arrangement, which is arranged on the chassis in the region of the rear end, and a cleaning head, which is pivotably arranged on the chassis in the region of the front end, wherein there is provided a steering rod device, which is articulated on the cleaning head, which is supported on the chassis and which extends upwardly in a direction away from the chassis toward the rear end.