Method for operating a dirt collecting device for a sweeping vehicle or for a vacuum cleaner nozzle of a floor or upright vacuum cleaner, which each comprise a suction fan with controllable speed and/or power, wherein in a first method step, the suction power of the suction fan is set at such a low level that the suction pressure in the dirt collecting device or the vacuum cleaner nozzle is merely sufficient to convey and deposit the absorbed coarse dirt into the intermediate container, and to convey the absorbed fine dirt into a downstream collection container, (normal operation); and that in a second method step, the filling level in the intermediate container is detected with respect to the coarse dirt deposited therein; and that in a third method step, if the filling level in the intermediate container is exceeded, the suction power of the suction fan is increased such that the coarse dirt, which is temporarily deposited in the intermediate container, becomes dispersible and is conveyed into the downstream collection container (emptying mode).

A roadway sweeper vehicle includes one or more processors and a control console allowing the vehicle operator to select one of a plurality of available engine speeds. A power increase assist feature is available through a throttle (e.g., pedal) that provides an increased power output of the vehicle engine for a momentary or transient period of time. The additive engine speed may be calculated based on a detected position of the throttle or determined from a lookup table based on the user-selected engine speed. Related methods are also described.

A working machine including front and rear wheels or a pair of endless tracks supporting a body. A first working arm with a first implement mount is connected to the body. An apparatus with a collector having a first opening and a sweeper trailing the collector is mounted to the first implement mount. A second implement mount connected to the body, and a milling device is mounted to the second implement mount. The sweeper is configured and arranged to move surface material broken up by the milling device into the collector via the first opening.

A self-propelled field paint removal and extraction machine for removing paint from artificial turf athletic fields. The machine includes a self propelled, zero-turn rolling chassis including a frame defining a longitudinal axis of the machine; a brush assembly supported by the frame rearward of first and second front wheel caster assemblies and including a first outer brush rotating about a first brush axis of rotation and a second other brush rotating about a second brush axis, the brush assembly movable between a retracted position and a ground-contacting position; and a vacuum assembly supported by the frame rearward of the brush assembly and including a ground-contacting vacuum pad having a plurality of suction ports, the vacuum pad extending parallel to a lateral axis of the machine; and wherein the first and second brushes, in the retracted position of the brush assembly, are within a front footprint of the rolling chassis.

Method for operating a dirt collecting device for a sweeping vehicle or for a vacuum cleaner nozzle of a floor or upright vacuum cleaner, which each comprise a suction fan with controllable speed and/or power, wherein in a first method step, the suction power of the suction fan is set at such a low level that the suction pressure in the dirt collecting device or the vacuum cleaner nozzle is merely sufficient to convey and deposit the absorbed coarse dirt into the intermediate container, and to convey the absorbed fine dirt into a downstream collection container, (normal operation); and that in a second method step, the filling level in the intermediate container is detected with respect to the coarse dirt deposited therein; and that in a third method step, if the filling level in the intermediate container is exceeded, the suction power of the suction fan is increased such that the coarse dirt, which is temporarily deposited in the intermediate container, becomes dispersible and is conveyed into the downstream collection container (emptying mode).

An automated road sweeper is provided including transport apparatus suitable to allow the sweeper to travel on a road surface including debris, a plurality of cleaning members arranged at fixed points located in different portions of the sweeper and suitable for cleaning within predetermined cleaning areas, and a selector operatively connected to the cleaning members, suitable for scanning the road surface and locating the debris so as to select and exclusively operate the cleaning members, the cleaning area of which covers the debris during the movement of the sweeper.

Method for operating a dirt collecting device for a sweeping vehicle or for a vacuum cleaner nozzle of a floor or upright vacuum cleaner, which each comprise a suction fan with controllable speed and/or power, wherein in a first method step, the suction power of the suction fan is set at such a low level that the suction pressure in the dirt collecting device or the vacuum cleaner nozzle is merely sufficient to convey and deposit the absorbed coarse dirt into the intermediate container, and to convey the absorbed fine dirt into a downstream collection container, (normal operation); and that in a second method step, the filling level in the intermediate container is detected with respect to the coarse dirt deposited therein; and that in a third method step, if the filling level in the intermediate container is exceeded, the suction power of the suction fan is increased such that the coarse dirt, which is temporarily deposited in the intermediate container, becomes dispersible and is conveyed into the downstream collection container (emptying mode).

A working machine including front and rear wheels or a pair of endless tracks supporting a body. A first working arm with a first implement mount is connected to the body. An apparatus with a collector having a first opening and a sweeper trailing the collector is mounted to the first implement mount. A second implement mount connected to the body, and a milling device is mounted to the second implement mount. The sweeper is configured and arranged to move surface material broken up by the milling device into the collector via the first opening.

A sweeper attachment for a refuse collection vehicle that utilizes either a conveyor system or a vacuum system to transport debris from a road surface to a collection body of the refuse collection vehicle. The sweeper attachment allows for the same vehicle to be used for both refuse collection and sweeping roadway surfaces.

A boarding sweeper comprises a cleaning working unit capable of executing cleaning work, a seat portion for seating a user, an operation input unit that allows the user to input a driving operation, a suction unit provided in a vicinity of the cleaning working unit, a battery holder that detachably holds a battery unit, and an air guiding mechanism that guides suction air from the suction unit so that the suction air passes through the battery holder.