Abstract: A vacuum cleaner having a housing that consists of a bottom part with a dirt receptacle and a top part. At least one filter is arranged in the housing and an intake airflow can flow through it, and the housing has at least one hinged housing in which the at least one filter is arranged.

Abstract: The present invention relates to a silencer system for a vacuum motor in a suction cleaner, which may be constructed using only one or two parts to form a housing for the vacuum motor including the silencer system. The system may have a main fan silencer system for the main fan and a second motor cooling silencer system for the motor cooling fan. The main fan is encapsulated in a housing surrounded by a substantially circular first wall part in such a way that a first cavity is formed between the housing and the first wall part. The system further includes two ducts, each duct connected at one end with a serpentine shaped exhaust air duct and at the other end with a second cavity connected with the first cavity by an opening in the first wall part.

Abstract: A washing-drying machine including a scraping device including a reversible fastening system of scraping blades. The reversible fastening system makes it possible to apply the scraping blades to the scraping device in a simple and safe way and as simply to remove them to clean them or replace them when worn out through a flexible fastening mechanism including holes for engaging with support elements provided on the scraping device, and including at least an elastic end portion with a slot for engaging with the undercut of a corresponding locking element, formed in the proximity of end portions of the support.

Abstract: The present invention relates to a silencer system for a vacuum motor in a suction cleaner, which may be constructed using only one or two parts to form a housing for the vacuum motor including the silencer system. The system may have a main fan silencer system for the main fan and a second motor cooling silencer system for the motor cooling fan. The main fan is encapsulated in a housing surrounded by a substantially circular first wall part in such a way that a first cavity is formed between the housing and the first wall part. The system further includes two ducts, each duct connected at one end with a serpentine shaped exhaust air duct and at the other end with a second cavity connected with the first cavity by an opening in the first wall part.

Abstract: A system has a primary unit (1) and a number of secondary units (16), which may be stored in receiving slots in the primary cleaning unit (1) or be coupled to the primary unit. The primary and secondary units are configured as movable cleaning or grounds maintenance units capable of performing at least one cleaning or grounds maintenance operation. The primary unit (1) is powered by a power source (2), which also powers the secondary unit (16) or charges a power source (17) in the secondary unit (16). Each unit has a communications module (13, 25) capable of communicating with each other and/or a remote location. At least one of the units (1, 16) may include one or more proximity or near-field sensors and/or one or more sensor for sensing the performance of the unit (1, 16).

Abstract: A floor washing-drying machine including a scraping device that is capable of automatic orientation. The scraping device follows changes of direction of the machine by a simple and effective orienting mechanism so as to wipe all the surface washed by a washing mechanism, without leaving any wet portions on the surface. An idle mode mechanism is achieved by a bushing to which the scraping device is connected. The bushing is mounted in an idle and axially slidable mode on the brush rotation shaft.

Abstract: The invention relates to filter cleaning in a vacuum having a switchable flap element, the cleaning of the filter or of parts of the filter being carried out by supplying a secondary air flow to the interior of the filter to be cleaned, and air being able to flow through the filters separately from each other from the outside to the inside in the vacuum container in a sealed manner, and a flap element disposed in a chamber housing being pivotable, by means of the pivoting of which openings may be closed and released, the secondary air flow reaching the surface of the filter to be cleaned from the inside toward the outside in pulses, characterized in that the flap element comprises at least two partial flaps, the pivoting of which is actuated by a pivot drive, the respective partial flap optionally closes the outflow opening of the respective filter chamber in the direction of the intake opening of the suction turbine, the blow-out side of the suction turbine delivers the created overpressure air into an overp

Abstract: Apparatus for floor cleaning, having a cavity that opens on the dashboard, a plurality of mechanically similar interchangeable keys, and suitable to be inserted completely into and operate with said cavity, two or more Hall-effect sensors arranged outside said cavity, at least one first key containing at least one magnet, and at least one second key including at least one respective second magnet, which are in functional correspondence with respective predefined sensors. Said magnets do not interfere with sensors to which they are not geometrically connected, and for this purpose they are aligned on a same straight line, and the insertion of said keys causes a movement of said magnets toward the respective sensors with a motion orthogonal to said straight line.

Abstract: A method and a system for controlling the charging and discharging of one or more battery packs (8) connected to a power source (7) or an apparatus (9) driven by the battery packs. The battery pack (8) comprises a number of battery cells connected to two or more terminals for establishing an electrical connection with the power source or the apparatus. The electronic system (2) for controlling the charging of the battery pack (8) and the electronic system (6) for controlling the operation of the apparatus (9) are integrated into the battery pack (8). The battery pack (8) comprises a communications interface for communicating with other battery packs (8) and generates a charging and discharging pool, where the most effective battery pack (8) to charge or discharge is charged and discharged first.

Abstract: A portable vacuum cleaning system includes a portable vacuum unit for cleaning debris. The vacuum unit is powered by a self-contained first electric power storage device and may be carried with a strap in backpack-fashion. The system also includes a cart defining a receptacle for receiving the vacuum unit. The vacuum unit may be used when supported by the cart or when carried by an operator. A second electric power storage device is supported by the cart and electrically connectable to the vacuum unit for charging the first electric power storage device when the vacuum unit is supported by the cart. Further, when disposed in the cart, the vacuum unit is disposed at an angle of about 45 degrees allowing for ease of movement of the cart.

Abstract: A dirt suction device comprises at least two filters (3, 4) which are arranged on/in a dirt suction device housing (1), are affected by an air stream from a fan (21), and include valves (26-34) for separately controlling the cleaning action of the filter, wherein during normal operation, the dirt-laden air stream passes through at least one filter from the untreated air side to the clean air side, and at least one of the valves is associated with each of the at least two filters, said valve switching over in the cleaning position such that the air stream in the filter is reversed and the dirt particles adhering to the untreated air side are removed, wherein the fan of the dirt suction device is arranged outside the dirt suction device housing.

Abstract: The present invention refers to a floor washing-drying machine, in particular of the drives-on-board kind, provided with at least a front driving and steering wheel (3), a pair of rear wheels (5), a brush-carrying head (4) positioned between the front driving wheel and the supporting axle of the rear wheels, and a wiping and vacuuming device (6) arranged behind the rear wheels. The brush-carrying head (4) is connected with the machine frame through a support and steering system of four-arm linkage type (X,Y,J,W; 17,19) which is driven by a gear steering device (11,12,14,15). The technical solution allows to solve efficiently the problem of collecting washing liquid and to dampen impacts of the machine against obstacles which it may encounter along its path.

Abstract: A vehicle which includes an accelerometer to detect its lateral acceleration while in operation, a motor, and an input device activated by the operator of the vehicle and suitable to actuate in a controllable mode the mechanical power delivered by the motor so as to adjust the speed of the vehicle. Further, there is a processor including algorithms to compare the lateral acceleration signal detected by the accelerometer with a preset value corresponding to a preset lateral acceleration.

Abstract: A floor washing-drying machine including a scraping device that is capable of automatic orientation. The scraping device follows changes of direction of the machine by a simple and effective orienting mechanism so as to wipe all the surface washed by a washing mechanism, without leaving any wet portions on the surface. An idle mode mechanism is achieved by a bushing to which the scraping device is connected. The bushing is mounted in an idle and axially slidable mode on the brush rotation shaft.

Abstract: A system has a primary unit (1) and a number of secondary units (16), which may be stored in receiving slots in the primary cleaning unit (1) or be coupled to the primary unit. The primary and secondary units are configured as movable cleaning or grounds maintenance units capable of performing at least one cleaning or grounds maintenance operation. The primary unit (1) is powered by a power source (2), which also powers the secondary unit (16) or charges a power source (17) in the secondary unit (16). Each unit has a communications module (13, 25) capable of communicating with each other and/or a remote location. At least one of the units (1, 16) may include one or more proximity or near-field sensors and/or one or more sensor for sensing the performance of the unit (1, 16).

Abstract: A vehicle which includes an accelerometer to detect its lateral acceleration while in operation a motor, and an input device activated by the operator of the vehicle and suitable to actuate in a controllable mode the mechanical power delivered by the motor so as to adjust the speed of the vehicle. Further, there is a processor including algorithms to compare the lateral acceleration signal detected by the accelerometer with a preset value corresponding to a preset lateral acceleration.

Abstract: A harness (10) for a backpack vacuum cleaner (100) includes a back plate (20) mounted to a vacuum cleaner body (102). The back plate (20) includes an intermediate portion (22) and two flexible sections (24) on opposite sides of the intermediate portion (22). A waist strap (90) is fixed to the back plate (20) between the flexible sections (24). The flexible sections (24) are flexible to respectively pivot about two spaced vertical pivot axes (72). Upper ends (82) of two shoulder straps (80) are attached to a mounting plate (50) slideably mounted to the back plate (20), and lower ends (84) of the shoulder straps (80) are attached to the flexible sections (24). Relative positions between the upper and lower ends (82 and 84) of the shoulder straps (80) can be adjusted by moving the mounting plate (50). When a user moves his or her shoulders, the connection points (32) of the flexible sections (24) flex to respectively pivot about the pivot axes (72).

Abstract: A surface-cleaning machine with on-board operator, such as a floor washing-drying machine, a floor washing machine, a sweeper, a high-pressure cleaner, a vacuum cleaner, or similar machines including an operators compartment including a footboard that defines a first fixed reference surface, having adjacent to it at least one pedal to control the surface cleaning machine. The footboard includes at least one resting member defining a second resting surface, with the second resting surface being adjustable with respect to the first fixed reference surface.

Abstract: The present invention refers to a floor washing-drying machine, in particular of the drives-on-board kind, provided with at least a front driving and steering wheel (3), a pair of rear wheels (5), a brush-carrying head (4) positioned between the front driving wheel and the supporting axle of the rear wheels, and a wiping and vacuuming device (6) arranged behind the rear wheels. The brush-carrying head (4) is connected with the machine frame through a support and steering system of four-arm linkage type (X,Y,J,W; 17,19) which is driven by a gear steering device (11,12,14,15). The technical solution allows to solve efficiently the problem of collecting washing liquid and to dampen impacts of the machine against obstacles which it may encounter along its path.