DE202005022120U1 - Device for soil cleaning and treatment - Google Patents

Abstract

A floor treatment device (2) for surface cleaning, comprising: a chassis (8) having a lower surface, a front surface, a rear surface, a left surface and a right surface, the rear surface having a platform (4) which is adapted thereto to bear the weight of an operator (6); a plurality of wheels operatively connected to the lower surface, one wheel adjacent the left surface and one wheel adjacent the right surface; a steering wheel (20) which is operatively connected to a third wheel which is located approximately between the left surface and the right surface and which enables the chassis (8) to rotate through 360 ° without substantially changing into others Moving directions; a soil treatment mechanism connected to the lower surface; a drive connected to at least one of the plurality of wheels, an electric motor being provided for driving the soil treatment device; a control mechanism in communication with the steering wheel (20); wherein the platform (4) is designed as a standing area for the operator (6) so that the operator (6) can stand on the platform and the operator (6) controls the soil treatment device from the platform.

Description

Field of the invention

The present invention relates to an apparatus for treating, such as for cleaning, a surface. More specifically, an embodiment of the present invention provides a surface cleaning apparatus which provides a standing space or seat for the operator and which can operate in confined spaces.

Background of the invention

Cleaning machines are widely used for cleaning floor surfaces made of tiles, stone, brick, wood, concrete, carpet and other common surfaces. Maintaining the cleanliness of these surfaces is a continuous and time-consuming process, especially in large-scale operational, industrial, institutional and public buildings. The present invention relates to an extremely manoeuvrable soil cleaning or treatment device (hereinafter "treatment device") which carries an operator during use. More specifically, some embodiments of the present invention are adapted to clean, sweep, aspirate, grow, grow, and so on (hereinafter "treat") a floor surface, with the operator carried by the cleaning device, thus increasing efficiency and efficiency Productivity of the cleaning operation results. Here, the term "floor space," or more generally, "area" is used to include areas covered by concrete, tile, carpet, wood, plastic, stone, sod, or any other substance known in the art. The previous devices address many problems that occur when cleaning such floor surfaces. Unfortunately, prior to the present invention, there was not a single device that could address many, or even all, of these problems that occur at any given time in cleaning different surfaces in different environments.

A. Cleaning equipment with mob and bucket

In the past, building maintenance personnel and others have often treated surfaces such as tiled floorboards or toilet floors using a common mobility and bucket technology. The bucket may have a removable Mobauswringer and can be placed on casters to allow easy movement. Depending on the purity of the equipment, a worker may be able to get a good start in treating the soil when using the mob and bucket technique. Soon, however, the mob and fluid in the bucket are polluted or otherwise contaminated by pathogens and / or bacteria. From this point on, each time the worker plunges the mob into the bucket and wrings out the mob, both the mob and the cleaning fluid become more and more polluted / contaminated.

B. Manually powered cleaning equipment

The cleaning problems inherent in the prior art mob and bucket technology have generally been addressed in the art, such as in the art US Pat. 6,206,980 by Robinson entitled "Multi-functional Cleaning Machine", which is incorporated herein by reference in its entirety. This type of cleaning machine generally includes a manually driven hull with two-tank wheels, a concentrated-chemicals receptacle, a suction and blower motor, and a fluid pumping system. Typically, such a device has only a single motor, which is used both for sucking in the polluted fluid and for blowing out air that can be used to dry a cleaned surface. While such a device is generally maneuverable and an improvement over the earlier mob and bucket technology, the system is still labor intensive and slow. As a result, when using these types of systems, the productivity of cleaning professionals is generally lower than what they could be with other available types of systems.

C. Self-propelled device to run behind

Productivity concerns have been addressed in the art by the provision of certain ground handling devices for trailing. These devices typically have a scrubbing drive on the front of the machine and a puller on their rear. The puller has the ability to "pan" or follow the path of the scrubbing drive as the machine changes direction. This device type is generally more efficient at cleaning large surface areas than mobs and buckets on the one hand, and hand-powered devices on the other. Unfortunately, the distance between the scrubbing drive and the puller is relatively large. Trailers typically also have relatively wide pullers. These features limit the maneuverability of such machines and limit the door entrances which they can easily pass. Typical 3 '(foot) wide door entrances allow a machine with a puller not larger than 33 "(inches) to fit without removal of the puller. little one Downhill floor cleaning devices typically include a scrubbing drive in the center of the machine and pullers at the end of the machine. In this configuration, the puller has little or no ability to pivot or follow the path of the scrubbing drive as the machine changes direction. Small ride-on scrubbers typically have relatively tight pullers and rely on the "side puller" (peel-off sheets without suction) adjacent the scrubbing drive to direct the water into the path to the main puller (with suction). The problem with these side pullers is that they do not work very well over a long period of time and that they tend to leave a film of water when they change direction because the puller with suction is not the actual path of the scrubbing drive, but only the path the side puller (leaving the water film) follows. Finally, side pullers typically have very heavy rubber blades and are subjected to significant downward pressure to direct water - this makes them expensive and causes significant drag resistance, increasing the work for the drive unit and limiting battery life. Thus, small machines clean while being more manoeuvrable than larger walk behind ground handling machines, typically not as good as the larger machines.

D. Storage Problems in Prior Art Devices

The known cleaning machines also provide no adequate, on-board storage space for cleaning stock, tools, etc. ready. Likewise, prior art machines often do not provide a flexible approach to adding waste storage devices and the like when the need arises. Thus, machines are needed which address these problems.

E. Self propelled ride-on equipment

Self-propelled cleaners are also well known in the art and are used to treat large floor areas, such as fluidized floors, concrete floors or carpets, such as found in hospitals, department stores, schools, gyms, etc. These devices generally provide the operator with seating from which he / she can control the operation of the device. These devices are ideal for cleaning large, open areas because they are capable of collecting large volumes of spent fluid and / or debris without repeatedly requiring time-consuming fluid replacement or debris removal. Moreover, because these devices provide the user with seating, the user is not fatigued prematurely, which increases the overall productivity of the workers. Unfortunately, these large ride-on machines are not particularly well suited for cleaning smaller, more limited floor surfaces, which are often found in corridors, small rooms or even in larger rooms where there are many obstacles.

As is well known in the art, there are also smaller self-propelled cleaners which are ideal for cleaning smaller spaces and aisles. However, smaller devices are usually pushed or pulled by an operator. Thus, the major disadvantage of these devices is that they often require the operator's power to maneuver the device. Even if the device has its own drive, it often uses manual steering. After a long shift as he walks behind a treatment device, an operator will definitely be tired, with his or her attention becoming out of line with the task at hand, possibly resulting in uneven treatment of the floor area. Thus, a subsequent crew may return and may need to revisit certain areas that have not been carefully handled during the first treatment. In addition, human errors in the time that the brush surface is exposed may occur when the operator lingers over a single area for an extended period of time. This situation is never good for a soil surface. The prior art devices are also difficult to maneuver and often are not adapted for operation around tight corners, which requires pre-cleaning or post-cleaning, thereby increasing the time and cost of the overall task.

Thus, in the field of floor cleaning or treatment, there has long been a need to provide a device which allows the operator to ride on it and which is adapted for use in small areas and / or around tight corners. The following disclosure describes an improved soil cleaning and treatment apparatus which is adapted for use in small areas and which has a footprint adapted to support the operator to ensure optimum floor cleaning or treatment.

Summary of the invention

It is an aspect of the present invention to provide a soil treatment device which is easy to maneuver. More precisely, one Embodiment of the present invention is constructed with a chassis portion having a housing having at least a portion of the inner components of the treatment apparatus and an area for installing the apparatuses used during the cleaning operation. In addition, an embodiment of the present invention provides a standing, reclining or seating area for the operator. Another embodiment of the present invention is equipped with a powered steering device which allows greater maneuverability on areas with narrow corners and thus ensures that more of the floor area is treated without having to perform pre- or post-treatment work. More specifically, one embodiment of the present invention is equipped with a self-propelled wheel and an easy-to-use steering device to allow for increased maneuverability around obstacles. An embodiment of the present invention uses at least one wheel that provides drive and / or steering capability. Yet another embodiment of the present invention utilizes wheels which are substantially centered under the chassis so that the entire apparatus is generally capable of 360 ° rotation without substantially moving in any other direction, thereby resulting in movement in the vehicle Able to handle tight corners of a surface. It is another aspect of the present invention to provide a cleaning device which is cost effective to manufacture. Various aspects of the invention will now be described in more detail.

chassis

One embodiment of the present invention utilizes a chassis portion that is configured to protect and house the internal mechanisms of the device and provide a location for interconnecting auxiliary handling devices used therewith. One embodiment of the present invention uses a chassis constructed of rigid plastic, metal, or other materials commonly used in the art. The chassis of this embodiment is also provided with a footprint for the operator. Alternative embodiments of the present invention use a foldable, removable or stationary operator's seat. In addition, other security features, such as cushions or straps, may be used to secure the operator in the cleaning device - and thus in his / her work area.

It is yet another aspect of the present invention to provide a chassis with a small contour. More specifically, an embodiment of the present invention is small enough to fit in and through confined spaces. Often, devices utilizing the apparatus of the present invention have narrow doorways, passageways, and elevators. In addition, especially in older buildings that have been converted to comply with the Americans with Disabilities Act, there are lifts with minimal volume and minimal lifting capability. To fit in small elevators, the chassis is designed to have the smallest, most practicable contour, which is a distinct advantage over the prior art. The device of one embodiment of the present invention also includes components that are easily removable or adjustable to reduce the profile of the device. Thus, the embodiments of the present invention can be used in various buildings.

control mechanism

It is another aspect of the present invention to provide a cleaning device that is easy to operate and maneuver. More specifically, an embodiment of the present invention is provided with a control mechanism that allows operator inputs to be efficiently communicated to the steering wheels of the cleaning device. Alternatively, other steering means may be used to facilitate the maneuverability of the treatment device, such as joysticks, touch screens, push buttons, remote controls, etc.

It is yet another aspect of the present invention to provide a cleaning device adapted for efficient cleaning of areas with narrow corners. More specifically, one embodiment of the present invention is adapted to generally perform 360 ° turns without significant lateral movement. This embodiment of the present invention is equipped with a turning mechanism disposed substantially below the center of the chassis with two driven outer wheels adjacent thereto, which drive the chassis to pivot about the central wheel. The driven outer wheels can be independently controlled by control sticks, the movement of which sends directional inputs to each of the wheels. An embodiment of the invention is provided with at least one joystick, wherein a forward displacement will impart forward motion, a reverse displacement will impart a reverse motion, and a lateral displacement will cause rotation of the device. Alternatively, two joysticks can be used in a similar manner, with a left joystick backward deflection and a forward deflection of the right joystick will cause a turn to the left and, depending on the arrangement of the drive wheels, perhaps a left turn of 360 °.

Another embodiment of the present invention uses a steering wheel, handlebars, control yoke, or similar steering devices. Embodiments may also include a servo control mechanism.

drive

It is another aspect of the present invention to provide a treatment device that is powered by commonly used drives. More specifically, an embodiment of the present invention uses an electric motor to drive the device. The electric motor may be powered by batteries, solar energy or an electrical cable attached to a permanent power source. Alternatively, the present invention may be powered by an internal combustion engine. As one skilled in the art will appreciate, other drive means may be employed by the present invention without departing from the scope thereof.

Soil treatment equipment

One embodiment of the present invention utilizes a chassis that houses a fluid pump assembly and a vacuum assembly. The apparatus further includes at least two tanks, one for holding a base cleaning fluid, such as water, and a second for storing spent cleaning solution, dry debris, etc. The apparatus may also include one or more concentrated chemical cleaning containers for holding concentrated cleaning chemicals are provided. The containers are preferably housed in a lockable structure, whereby the security of the entire device is further increased. These agents may be added to a base cleaning fluid as desired immediately prior to their application to a surface to accomplish the cleaning of various surfaces.

tanks

As mentioned briefly above, it is preferred to provide at least one tank which provides a solution which is passed to the soil surface to be cleaned for effecting the treatment. The tank may be provided with several compartments where wastewater is collected from the surface prior to disposal. More specifically, one embodiment of the present invention utilizes a tank having a moveable membrane. In this configuration, pure water and / or cleaning solution is applied to a surface and stirred. Dirty water is then sucked off and returned to a part of the tank, which moves a membrane so that the polluted water can be absorbed. Such a configuration is described in U.S. Patent No. 4,759,094 which is incorporated herein by reference in its entirety. A similarly selectively expandable fluid receiving area may be created using a collapsible structure located within the primary fluid tank. This type of arrangement will be in the U.S. Patent No. 4,196,492 which is also fully incorporated herein by this reference. Clear water can obviously come from an external source, such as a hose instead of being stored on board the device. However, to facilitate the maneuverability and use of the present invention, it can be envisioned that the chassis will house or hold at least one fluid tank, and perhaps a plurality thereof.

cleaning solutions

In one type of treatment operation, fluid flows from the chemical containers through a tube to a chemical selector, which may include a metering valve. The selector preferably has a positive shut-off position where fluid is kept from flowing through the selector regardless of the fluid pressure in a fluid line. The selector responds to inputs to select one of the plurality of cleaning chemicals by an operator. Once a chemical is selected, it can flow freely through the chemical selector and suitable amounts thereof can be provided on any number of inlets on a mixing tee. The amount of chemicals allowed to flow can be tuned in a known manner by a metering valve which is formed in the selector or separately from the selector. A base cleaning fluid, such as water, may flow from a fluid tank and through a separate tube to a second leg of the mixing tee. The cleaning fluid and the concentrated cleaning chemical then mix within the mixing tee to form a cleaning solution. This solution can then be passed through the selector outlet to a pressure pump in which the cleaning solution can be pressurized and directed via suitable tubes to an output device. The pump which draws the fluid to and through the selector preferably also includes a bypass system to enable the regulation of the pump pressure. The use of the pump to draw the fluid is preferred because this does not create undesirable pressures in the fluid lines and, in general, the system is not subject to any gravity-induced supply of fluid.

A solution may be applied to a surface using any type of dispenser. In a preferred embodiment, the dispenser or its associated dilute tubing or tubes has an adjustable valve which can be used to adjust the pressure and flow of the solution allowed to leave the dispenser. Due to adjustability, the device can be used as a pre-cleaner for various carpet treatments, including stain treatment or other treatments.

By using the chemical selector, two or more soil purification chemicals vessels can be fluidly connected to a mixing tee. In operation, a user can make any number of cleaning solutions without adding more vessels or having to switch chemical feed lines from one vessel to another or having to change dosing tips that are easily misplaced, mishandled or damaged. Thus, the treatment process is safer, because less chemical handling takes place. Likewise, the use of a metering valve will allow a user to produce a very precise soil treatment solution.

Preferably, one-way check valves are used throughout the device. For example, check valves may be provided: in supply lines which direct cleaning chemicals to the dosing tee; in lines that direct water to the dosing tee; in conduits which direct cleaning solution to the pump; in conduits which direct cleaning solution to the spray gun; or in the metering tee itself. The check valves prevent backflow of fluid and prevent contamination of one fluid with another.

fan

The treatment device may also include a modular fan assembly. The fan assembly may be hand-held and work completely separate from the entire cleaning machine. The blower assembly may be used to dry areas that are physically separate from the storage location of the apparatus. Since the fan assembly may be separate from the device, it may also be used for other fan functions, such as blowing leaves, grass, dirt, or other debris. The fan assembly may be used with a detachable hand nozzle, a flexible nozzle, an extension rod, etc., thereby increasing the flexibility of the fan assembly as a whole. The fan assembly may utilize an on / off integrated switch and may be powered by electricity provided by any typical extension cable, including the power source of the device. The fan may be configured to be stored on the device in any suitable manner. It will be appreciated by those skilled in the art that having a modular blower arrangement of this type is very conducive to the overall functionality of a multifunctional floor treating device.

storage

It is another aspect of an embodiment of the present invention that the chassis has containers, trays, stowage compartments, and other storage devices that are preferably easily accessible by the operator. The storage devices provide the operator with significant flexibility in cleaning a large building or area that has many types of surfaces to be treated. The apparatus also provides modular waste / supply containers that can be quickly and easily added to or removed from the device so that the machine can be configured for any of a variety of soil treatment activities.

primary pump

Yet another aspect of the present invention is to provide a device that is equipped with a secondary fluid pump that provides fluid to the main fluid pump prior to ignition. More specifically, one embodiment of the present invention includes a secondary or suction pump that is activated prior to activation of the main fluid pump. Often, it is desirable to introduce fluid into the main fluid pump prior to activating this pump, which forces trapped air that could damage the motor of the main fluid pump, for example, by trapped steam or cavitation. This preparation process can be done manually, but this is time consuming, with the user manually adding or venting fluid to the pump. Alternatively and preferably, an embodiment of the present invention is equipped with a secondary pump which is activated for a short moment when the fluid dispenser is initially activated. thereby ensuring that the main fluid pump is substantially free of trapped air when activated.

puller

Another aspect of the present invention is to provide a device having a puller adjacent to the soil treating implement, both of which are generally provided in the center of the machine. The puller effectively pivots or follows the path of the floor and does not rely on side suction pullers to direct water to the main suction puller. In this way, equal or better fluid uptake occurs when the device is cornering than would be possible with a backward scrubber, and a much better than typical small drivetrain because it does not rely on lubricating side draws. One embodiment of the present invention uses a puller that pivots about the control axis with a coupling carried by a roller guide mechanism. The absence of side drawers means lower draw resistance and better use of available energy. In addition, some embodiments of the present invention include an adjustable puller, apron or frame that minimally contacts the floor, thereby reducing draw resistance and saving battery charge. Alternatively, some embodiments of the present invention have stops that contact the ground without damaging it.

Using the device

Various aspects of the inventions briefly discussed above may be combined to provide an effective and efficient tool useful for handling many areas in and around commercial, industrial, institutional, and public buildings. Moreover, due to the various aspects of the present invention, a hygiene preservation force can more efficiently clean a particular room or facility than previously possible. The present invention can be used in various cleaning operations, such as polishing, vacuuming, scrubbing, grinding, waxing, sweeping, sealing, brushing, brushing, etc. In order to accomplish these objects, the present invention can be equipped with various combinations of soil working equipment. More specifically, one embodiment of the present invention is equipped with a plurality of brushes and strippers to agitate and collect debris on a soil surface. In addition, suction mechanisms may be employed so that fluid and / or dry particulate materials are transferred to a container. It can also be imagined that an embodiment of the present invention comprises at least one solution applicator disposed adjacent to the scrub brushes, wherein the solution is injected onto the surface after or before agitation by the brushes. The soaked solution is then taken up by the puller and subsequently sucked into the holding tank or discharged from the chassis into an outer reservoir. The brushes and / or solution used in this embodiment may be adapted to clean, sweep, brush, polish, grind, peel off, let in, or grow a floor. It will be appreciated by those skilled in the art that without departing from the scope of the present invention, any type of solution intended to treat any soil surface may be used.

Another aspect of the present invention is to provide a soil treatment device that can be used in various ground maintenance activities. More specifically, an embodiment of the present invention is adapted for connection to a plurality of devices for performing a variety of ground maintenance activities. It is envisioned that treatment devices determined in one embodiment of the present invention may be quickly removed so that various devices may then be added to rapidly change the scope of the device, thereby providing a device adapted to scrub carpets cleaning, soils to grow, floors to polish, wax or soil soils to remove, suck, etc. Thus, it is intended that this system can be used for a variety of floor cleaning and treatment measures.

Remote control

Yet another aspect of the present invention is to provide a highly mobile soil treatment apparatus that includes a car wash assembly. It will be appreciated by those skilled in the art that the device, if configured, may include a car wash bar connected to corresponding pumps and could be used to pre-clean heavily soiled areas prior to final cleaning using the device.

Another aspect of the present invention is to provide a floor cleaning apparatus that does not require direct contact with an operator to perform their tasks. More specifically, an embodiment of the present invention is adapted to can be remotely controlled. This embodiment of the present invention is equipped with a remote control mechanism, as well as with software already known in the art, such as taught by the US Pat. No. 6,625,843 by Kim et al., which is incorporated herein by reference in its entirety. In addition, this embodiment of the present invention may be equipped with a plurality of cameras so that remote monitoring and control can be performed. In a related embodiment of the present invention, software is installed in the cleaning device so that human contact or supervision is not required. More specifically, an embodiment of the present invention is adapted to learn its environment while operating on a surface, so that no remote control is required. Alternatively, it is also clearly within the scope of this invention to pre-program the dimensions of floor surfaces into the intelligent treatment device, with the device being parameterized with the surface dimensions before the task is started. Devices of this type are well known in the art, such as the Roomba ^™ device from iRobot Corporation, of which aspects are disclosed in U.S. ^Patent Nos. 4,980,736 U.S. Patents 6,594,844 and 6,535,793 are described, both of which are incorporated herein by reference in their entirety.

safety

Yet another aspect of the present invention is to provide a cleaning device that is safe and comfortable to use. More specifically, an embodiment of the present invention includes an operator platform. This platform allows the operator to stand on the device during treatment, thereby increasing productivity and reducing the likelihood of operator injury or fatigue. According to another embodiment of the present invention, a seat is provided on which the operator can comfortably sit while doing their jobs. Other safety and convenience features such as rails, cushions and straps may be provided depending on the needs of the operator.

It is therefore an aspect of the present invention to provide a soil treatment device comprising:
a chassis having a lower surface, a front surface, an upper surface, a rear surface, a left surface and a right surface, the platform adapted to support the weight of an operator;
a powered wheel operatively connected adjacent to the lower surface of the chassis, the driven wheel capable of at least one of the following: sliding or rotating the ground handling device;
a control mechanism adjacent to the upper surface accessible to the operator;
an operative ground handling device connected adjacent to the lower surface of the chassis;
an operable soil collection device connected adjacent to the lower surface of the chassis; and
wherein an operator controls the soil treatment device from the platform.

The summary of the invention is neither intended nor should it be interpreted to represent the full extent and full scope of the present invention. Some aspects of the present invention are set forth in various detail in the Summary of the Invention, as well as the accompanying drawings and detailed description of the invention. By including or not incorporating elements, components, etc. into this summary of the invention, no limitations on the scope of the present invention are intended.

Brief description of the drawings

The accompanying drawings, which are incorporated in and form a part of the specification, illustrate embodiments of the invention and, together with the foregoing general description of the invention and the following detailed description of the drawings, serve to explain the principles of these embodiments.

1 Figure 11 is a perspective view of an embodiment of the present invention showing an operator standing thereon on the platform;

2 Figure 4 is a perspective view of another embodiment of the present invention configured to receive fluid and controlled by at least one joystick;

3 FIG. 12 is a perspective view and alternative embodiment of the present invention configured for polishing operation; FIG.

4 is a perspective view of an alternative embodiment of the present invention, which is equipped with movable brushes, which are adapted to swing out to a To treat soil surface more efficiently, and which also has a rod for selectively cleaning hard to reach areas;

5 Figure 4 is a perspective view of an alternative embodiment of the present invention configured to be rotatable about a 360 ° axis without being substantially displaced in other directions;

6 Figure 3 is a perspective view of an alternative embodiment of the present invention configured to reach narrow areas of a ground surface;

7 is a detailed perspective view of the in 6 4, wherein the steering wheel, brushes and puller assembly used therewith are shown;

8th is a plan on a plan of a soil surface;

9 Figure 11 shows plan views of the bottom side showing configurations of control, cleaning and drive mechanisms;

10 Fig. 3 is a bottom plan view of an alternative embodiment of the present invention showing an alternative configuration of the control, cleaning and drive mechanisms;

11 Figure 4 is a perspective view of an alternative embodiment of the present invention adapted to be remotely controlled;

12 Fig. 10 shows views of a rotary puller for use in one embodiment of the present invention;

13 Fig. 12 shows views of a spent fluid system showing a strainer basket and a drainage port of one embodiment of the present invention;

14 Fig. 12 shows views of the tailgate and a battery pack of one embodiment of the present invention;

15 Fig. 12 is a perspective view of a manipulated rock and handles of an embodiment of the present invention;

16 Fig. 13 is a perspective view of a platform for an operator having a plurality of switches of one embodiment of the present invention;

17 shows views of a seat of an embodiment of the present invention;

18 shows views of a tank and a front panel of an embodiment of the present invention;

19 shows views of a suction fan, which is connected to the front panel, according to an embodiment of the present invention; and

20 Fig. 10 is a side view of an embodiment of the present invention showing the wastewater return hose.

In order to aid in understanding the present invention, the following is a list of components with the associated numbering which can be found in the drawings:

LIST OF REFERENCE NUMBERS

2

Soil treatment device

4

platform

6

operator

8th

chassis

10

Lower surface of the chassis

12

brush

13

Rotating brush

14

scrubbing brush

16

puller

18

wheel

20

steering wheel

22

joystick

24

handle

26

drive wheel

28

polishing pad

30

Tilt brush

32

Rod

34

tube

36

swivel arm

38

camp

40

rail

42

pivot point

44

Handle

46

cam

48

strainer

49

Waste tank cover

50

Inlet for used fluid

51

Main storage tank

52

Inlet for cleaning fluid

54

spud

56

flange

58

Bag for used fluid

60

casing pipe

62

drain hose

64

strap

66

rear panel

68

battery

70

commitment

72

cup holder

74

trim pillows

76

Control panel

77

attachment

80

Operator presence switch

82

accelerator

84

Seat

85

adjustment

86

hook

88

front panel

89

light

92

suction fan

94

Saugabluftkanäle

96

Waste water return hose

98

tube channel

100

Umkippstopps

It should be understood that the drawings are not necessarily to scale. In certain cases, details may be omitted that are not required for an understanding of the invention or that would make it difficult to discern other details. It is understood, of course, that the invention is not necessarily limited to the particular embodiments illustrated herein.

DETAILED DESCRIPTION

With reference to the 1 - 20 becomes a device 2 for cleaning or otherwise treating a soil surface. More specifically, an embodiment of the present invention includes a chassis 8th with a platform 4 which is adapted to the weight of an operator 6 which increases the efficiency of the entire soil treatment work process. In addition, various cleaning and soil treatment components can be used with the lower surface 10 be connected to the chassis, such as brushes 12 , Scrubber 14 , Pullers 16 , Suction, etc.

The chassis 8th also has a plurality of wheels 18 on, which is operational with the bottom surface 10 are connected to enable control and stability. It is intended that the operator 6 on the platform 4 stand and the device 2 either with a steering wheel 20 or another type of control mechanism, such as a joystick 22 , will direct. Such an embodiment of the present invention makes it possible to more efficiently clean or otherwise treat the soil surface as the operator 6 no often heavy device 2 push or pull. In addition, a more even soil treatment can be achieved, which can save on materials and reduce the cost of overall operation because of the human component of propulsion or other movement of the device 2 is avoided.

With reference to the 1 An embodiment of the present invention will now be illustrated. More precisely, a chassis 8th is shown which the platform 4 which is adapted to an operator 6 during the soil treatment operation. The operator 6 is preferably on the platform 4 that extends generally parallel to the soil surface. Preferably, the platform is 4 tilted between 3 ° and 8 ° to improve ergonomics, with the rear edge higher than the front edge. However, the person skilled in the art will understand that other carrying devices, such as seats that are functional in the chassis 8th can be folded, can be provided to the convenience of the operator 6 to increase. In addition, the embodiment of the present invention which is disclosed in US Pat 1 shown equipped with a control mechanism, such as a wheel 18 which it the operator 6 allowed the device 2 easy to maneuver around the ground.

The chassis 8th is constructed of any material, but preferably hard plastic is used to reduce the weight of the device 2 to reduce. As shown here, a plurality of wheels 18 operable with the stern of the device 2 connected to provide stability and possibly propulsion for locomotion. In addition, a puller 16 provided, which is adapted to extract water or dirt or funnel-shaped to a location where it is received by a suction in a container, which in general, but not always, at least partially within the chassis 8th is arranged. In addition, this embodiment of the present invention has a brush 12 which is used to agitate the soil surface so that dirt is released, leaving behind the brush 12 arranged spray nozzles can be used to treat the soil and to catch the dirt, allowing it through the puller 16 and the suction system of the device 2 can be detected.

With reference to 2 an alternative embodiment of the present invention is shown, which is used essentially for receiving fluid. This embodiment of the present invention is similar to the device described above, but other lower surface components 10 of the chassis 8th connected so that the device is adapted to efficiently fluid or dirt which on a soil surface deposited. More specifically, this embodiment of the present invention is with at least one brush 12 equipped to agitate water and / or dirt and a puller 16 that is adjacent to the rear surface of the chassis 8th is positioned and contains fluid and dirt when the device 2 moved forward. In one embodiment of the present invention, a suction device, such as a suction nozzle, is in the vicinity of the puller 16 positioned so that dirty water is sucked from the surface and transferred back to a tank located inside or next to the chassis 8th located. Alternatively, another embodiment of the present invention is provided with a puller 16 with a plurality of suction holes, which are the end of pipes that carry waste water into the storage tank.

In the illustrated embodiment, the operator is 6 capable of the device 2 with a plurality of joysticks 22 to control. In addition, sideways of the operator handles 24 provided to increase safety. Furthermore, this embodiment of the present invention uses powered wheels 26 that allow the entire system to rotate in a single vertical axis and without significant displacement in other directions. More specifically, this embodiment of the present invention is capable of 360 ° rotation, which facilitates the cleaning of confined spaces.

An alternative embodiment of the present invention used for polishing is shown in FIG 3 shown. This embodiment of the present invention comprises a polishing pad 28 on which is operable with the lower surface of the chassis 8th connected is. As before, the operator stands 6 on a platform 4 which in the chassis 8th is trained. It will be understood by those skilled in the art that this embodiment of the present invention may also include a device for vacuuming debris remaining in the polishing process, such as from dust or wax particles.

Now, referring to 4 an alternative embodiment of the present invention shown, the pivotable brush 30 used. This embodiment of the present invention is very similar to the ones described above, but the brushes 30 which are used for stirring, scrubbing or polishing are rotatable with the lower surface 10 of the chassis 8th connected. More precisely, the brushes 30 of this embodiment are able to fold inwardly independently of each other and thereby efficiently clean the inner part of a floor when the device is operated in the vicinity of a vertical surface such as a wall. As shown here, the brushes are 30 independently movable and preferably biased outwardly with spring pressure such that contact with a vertical surface of the brush 30 induces itself under the chassis 8th to fold.

Alternatively, as the skilled artisan will understand, the orientation of the brushes may be controlled by the operator. Additionally, in this embodiment of the present invention, one may also be with a hose 34 connected staff 32 can be used to allow selective application of cleaning solution or selective suction.

Now, referring to 5 another embodiment of the present invention shown, the central driven wheels 26 used. More specifically, this embodiment of the invention is similar to that described above, but with a plurality of wheels 26 equipped, which allow a 360 ° rotation. This embodiment of the present invention is also equally useful for cleaning the surface of a floor by means of a brush 14 or a plurality thereof adapted to be used to stir up the dirt, wherein a puller contains dirt and absorbs into a container.

Now, referring to the 6 - 8th an alternative embodiment of the present invention shown with a wheel 18 with brushes arranged around it 12 is equipped for cleaning in all directions. This embodiment of the present invention is with brushes 12 equipped, which is a cleaning or agitating the soil surface in any direction in which the device 2 allows floors to be efficiently cleaned without requiring multiple passes across the surface.

Now, referring to the 9 a configuration of cleaning components shown with the lower surface 10 of the chassis 8th are connected. More specifically, one embodiment of the present invention is adapted to either sweep or clean a floor. In the illustrated embodiment, a trim brush operates 12 the carpet or hardwood floor to remove dirt. Next, rotary scrub brushes continue to work the surface, perhaps adding fluid and cleaning solution to facilitate loosening and picking up any loose debris. Finally, a puller 16 and preferably a suction system is provided, which when the device moves forward to pick up the dirty water. As shown here, the drive unit is the central wheel 26 which is also adapted to move in accordance with the steering commands from the operator 6 to turn specifically.

The 9B shows a configuration of the lower surface 10 of the chassis 8th associated cleaning components, similar to what is in 9A is shown. The difference, however, is that the precaution brush 12 through three scrubbing brushes or three rotating brushes 13A . 13B and 13C which can be used to either sweep, polish, or combinations of a soil surface. The brushes may rotate at desired or preselected speeds by the operator and in directions selected by the operator or in preselected directions.

Now, referring to 10 an alternative configuration of the lower surface 10 of the chassis 8th connected cleaning components shown. More specifically, this configuration is essentially the same as the previous one 9 However, the drive mechanism of the device is a transaxial drive unit, which the rear wheels 26 drives while steering by a front wheel.

With reference to 11 Now, still another embodiment of the present invention is shown, which performs a soil treatment operation without requiring physical human contact. More specifically, this embodiment of the present invention is remotely controlled or otherwise intelligent so as to clean a floor surface without direct operator contact. This embodiment of the present invention may be configured for any task, such as scrubbing, sweeping, vacuuming, polishing, carpet cleaning, waxing, surface treatment, cleaning, etc. It is envisioned that the operator may be in a different location, perhaps outside the home actual cleaning area, and is supported by remote viewing devices. Alternatively, one embodiment of the present invention is programmed with the ability to automatically treat a ground surface, with the dimensions of the surface either programmed into the device or learned during use of the device, thereby obviating the need for human contact with the device. This embodiment of the present invention may be automatically deployed from a storage location, with the addition of remotely separable fluid sources or garbage containers, such that the filling or emptying of tanks or garbage containers within the chassis 8th also without requiring a human operator. This embodiment of the present invention can be used in areas where the operation is dangerous to humans, such as in nuclear power plants, asbestos loading areas, etc.

Now, referring to 12 a puller 16 for use in an embodiment of the present invention. More specifically, some embodiments of the present invention include a pivoting mechanism that allows the puller 16 allows to stay in position when the soil treatment device 2 the direction changes. In this way, the amount of fluid taken up is increased when the device 2 a tight corner drives. In the illustrated embodiment, the puller is 16 with a swivel arm 36 connected by one point next to the front wheel 18 the device pivots. The swivel arm 36 gets from rolls or warehouses 38 on a rail 40 worn, showing the vertical position of the puller 16 maintained relative to the ground. When making a change of direction to the right or left, friction will tend to cause the puller 16 is held in a straight line following the original path of the vehicle. Once a new line of travel is established, the pull will be 16 in its place essentially below the device 2 fall behind. The 12A shows the puller 16 in its leftmost position while the 12C shows the puller in its rightmost position. The 12B shows the puller in a neutral position while the 12D the puller in a neutral position, but in a side view shows.

The puller 16 An embodiment of the present invention is provided with a plurality of wheels which contact the ground to maintain the vertical spacing of the puller assembly. In addition, lateral rollers may be provided which the puller 16 prevent it from contacting a vertical surface, such as a wall. These wheels and various parts of the puller assembly can be selectively adjusted so that the width of the puller 16 and the arrangement of the wheels (height of the puller) can be changed as desired.

We shown is the swivel arm 36 with a pivot 42 connected, which the impulse of the puller 16 exploits this with respect to the device 2 to pan. However, those skilled in the art will understand that other methods of deflecting the puller 16 opposite the soil treatment device 2 can be used without departing from the scope of the invention. More precisely, a motorized system can be used which communicates with the steering system of the vehicle so that turning the steering wheel is the puller 16 in a predetermined manner from the device 2 weggschwenkt.

An actuation system that pulls the puller 16 can selectively lift off the ground, as in 12E be shown as well. In accordance with some embodiments of the present invention, a handle-operated lift system 44 used and is in mechanical communication with a cam 46 , The cam allows the user to apply a minimal force to the handle 44 exercise next to the control panel to the puller 16 to raise or lower. It will also be understood by those skilled in the art that this function may alternatively be performed using a motor.

Now, referring to 13 a sieve basket 48 a surge tank according to an embodiment of the present invention. Balance tanks of some embodiments of the present invention are constructed of elastically deformable material, such as a plastic bag. The bag is put into the detergent tank 51 introduced the device. Once the cleaning fluid is transferred to the soil treatment tool of the device, sewage may be drawn into the spent fluid tank, thereby expanding the bag and occupying the space previously occupied by the now dispensed cleaning fluid. Often, small metallic chips, chips of wood, glass, etc. may be absorbed along with the spent fluid and deposited in the spent fluid tank, which may cause cracks or injuries in the bag and eventually lead to leaks and contamination of the cleaning fluid. It is therefore desirable to have a system that collects any hazardous debris so that it does not come into contact with the spent fluid tank. An embodiment of the present invention therefore has a screen basket 48 on which with the cover 49 the tank is connected to spent fluid. In the illustrated embodiment, there is provided a generally rectangular screening device constructed of a rigid material having a plurality of apertures therethrough. When the waste water is dumped into the tank through the cover, any large debris will pass through the screen basket 48 detected. One skilled in the art will understand that an opening of any size may be used to determine the size of the debris that is being detected. It is understood in particular also that any shape of the screen basket 48 can be used without departing from the scope of the invention.

With specific reference to the 13D Now a fluid discharge system is shown, with the waste water tank 58 an embodiment of the present invention is connected. Exactly, a fitting piece 54 with a flange 56 , which with the main storage tank 51 the device is connected, can be used. Preferably, the fitting piece 54 rotated at high speed and with an opening in the tank 51 causing friction-induced heat to be generated between the two surfaces and welded together. The opening of the sewage bag 58 is then through the fitting piece 54 guided and a jacket tube 60 is added to the wastewater bag 58 to include in between. The jacket tube 60 is made of a rigid material, such as aluminum, to ensure an open flow path. A drain hose 62 is over the outer surface of the fitting piece 54 guided and with a clamp 64 secured. The skilled person will understand that the drain hose 64 generally capped during use, with the user removing the cap to remove the wastewater from the bag 58 drain. To make sure the bag 58 is completely empty, the tank can be fed new solution, reducing the bag 58 compressed so as to push out all the wastewater therein.

Now, referring to 14 the tail section of the soil treatment device 2 shown. Specifically, the rear of the device 2 has a removable panel 66 on. The costume 66 The present invention can selectively rotate about an axis parallel to the rear axis of the device 2 runs. Alternatively, the rear trim 66 be completely removable. This aspect of the present invention provides the possibility of batteries 68 to access which device 2 can supply with energy. The batteries 68 can be on a removable insert 70 Sliding into the device 2 is introduced and in this way allows easy access for maintenance. The use 70 rests on rails that are coupled with a plurality of wheels, bearings, etc. The insert also has a closure feature which covers the batteries 68 safely within the vehicle. The rear fairing 66 also has other features, such as a cavity for receiving various items and beverage holders 72 , A cushion may also be provided which provides increased protection and comfort to the operator.

Now, referring to 15 a control panel 76 and an associated structure of an embodiment of the present invention. Embodiments of the present invention include a control panel 76 on which minimal fasteners for connection to the soil treatment device 2 having. Ie., Thumbscrews or similar types of fasteners may be provided, allowing quick and easy removal of the control panel 76 to achieve a repair can be achieved.

Embodiments of the present invention also have handles 24 next to the control panel 76 to provide a support for the operator. Specifically, during tight turns, the inertial forces acting on a person can cause an operator to fall. handles 24 , which may be integrated on the chassis of the device, will provide the operator with a place to hold onto the device for added convenience and to provide an additional security feature. In addition, they provide support when control switches located in the vicinity of the handle are operated.

Now, referring to 16 the platform 4 according to an embodiment of the present invention. More specifically, an embodiment of the present invention has a platform 4 with a server presence switch 80 , a platform switch and an accelerator pedal 82 on. The platform 4 may also have a suspension system and be padded to increase the convenience for the operator. In addition, the platform can 4 be foldable so that the outer contour of the device can be selectively reduced.

The operator attendance switch 80 An embodiment of the present invention is designed to act as a safety feature interrupting the accelerator pedal when not depressed. This will ensure that the operator has both feet positioned on the platform when the machine is in use. Upon deactivation of the switch, for example when the operator takes a foot off the switch, a neutral mode may be entered so that no power or forward or backward movement of the device is possible. In addition, the operator presence switch can 80 as a safety feature, ensure that sufficient weight is maintained on the platform at all times.

In its typical use, the platform switch is operatively connected to the platform so that it is activated when the operator stands on the platform. The operator must then operate a reset device, preferably on the control panel, to initiate a movement. The purpose of the platform switch and the reset switch is to act as a safety feature so that the machine does not move immediately when an operator steps on the pedal platform. Upon deactivation of the switch, for example when the operator leaves the device, a neutral mode may be entered so that no power or forward or backward movement is possible.

The accelerator pedal 82 Some embodiments of the present invention are adapted to selectively increase or decrease the speed of the device, depending on the wishes of the operator. Specifically, different speed ranges can be provided: idle, first gear, second gear, third gear, reverse gear, etc. (or slow, medium, fast, etc.). In some embodiments, cleaning operations are performed at low speeds while transporting from place to place at higher speeds. For example, when the operator selects first gear as the speed range, activation of the accelerator pedal becomes 82 driving the device within this speed range so that it can not change from the first speed range to the second speed range without manually switching the range. Thus, embodiments of the present invention include a hand-operated speed range selector, wherein the accelerator pedal 82 simply set the desired speed range to an activated mode. Also, the idle mode can be selected by the operator, the speed of the device is independent of the position of the accelerator pedal 82 will not increase. In addition, the device will automatically go off the gas, as previously briefly mentioned, with the operator moving her foot from the operator presence switch 80 takes. However, those skilled in the art will understand that without departing from the scope of the invention, an accelerator pedal 82 may be provided, which, as for example in cars, can provide selective speed increases.

Embodiments of the present invention also include a brake mechanism. For example, when an operator gets his foot off the operator presence switch 80 or the accelerator pedal, or turns off the platform switch, a brake mechanism may be employed so that any movement of the device is automatically or gradually terminated. The brake mechanism may be electromechanical, mechanical or hydraulic. Alternatively, the foot brake next to the accelerator pedal 82 or the operator presence switch 80 , which has the same stopping ability, be provided. In addition, manual or emergency brakes can be provided next to the control panel of the device.

Now, referring to 17 a seat 84 according to an embodiment of the present invention. More specifically, embodiments of the present invention include a selectively connectable seating device 84 to connect to the chassis to increase the convenience for the operator. seats 84 Some embodiments of the present invention are selectively adaptable 85 so they can easily accommodate people of any size. In operation, a coupling hook or a similar connection mechanism with the rear part of the platform 4 connected and at the seat 84 a matching counterpart is provided for connection to the coupling hook or other device. The seat 84 may also include a plurality of hooks, compartments, cup holders, etc. for securing cords, bags, or any other type of cleaning or comfort-related items. Furthermore, the coupling hook may be used when the seat is set up or not, for example, to transport other items such as an additional wheeled device which may hold additional power sources, cleaners, tanks, etc.

Now, referring to 18 a tank 50 an embodiment of the present invention. Some embodiments of the present invention have a tank 50 on that with a plurality of lights 80 and / or horns that assist cleaning and / or act as additional security features. Alternatively, the lights in beside the tank 50 or bumpers positioned on the sides of the device.

Although not shown, a filter in fluid communication with the fluid pump may be provided. This filter is designed to detect any dirt that could negatively affect the operation of the pump. Unfortunately, with many cleaning machines, the filter is positioned in a hard to reach location, making its repair or monitoring very difficult. Therefore, one embodiment of the present invention has a filter disposed on the outer surface of the panel, perhaps on the control panel. In this way, it is easily possible for the operator to monitor the integrity of the filter and, if necessary, to carry out quick repairs.

Now, referring to 19 a suction fan 92 shown, which with the front panel 88 an embodiment of the present invention is connected. More precisely, a suction fan 92 provides a wicking action to remove contaminated fluids from the ground. The fan two 90 is preferably below the control panel 76 arranged the device so that through the suction fan 92 sucked input cooling air next to the control panel 76 is directed to cool associated components.

In addition, the tank can 50 Made of a malleable material, so that the exhaust ducts 94 from the tank 50 be worked out or formed in it. The channels 94 direct the exhaust air from the suction device 92 to an output exhaust of the device. The channels 94 also act as silencers to remove noise energy from the exhaust gases, making the entire system quieter.

Now, referring to 20 a wastewater return hose 96 shown. More specifically, one embodiment of the present invention reduces its profile by providing the wastewater return hose 96 in a hose channel 98 is introduced into the outer surface of the device 2 is integrated. That the hose 96 on the outside also has the additional advantage of being very easily accessible, so that it can be easily removed for inspection for obstructions or breaks.

Furthermore, there are some embodiments of the present invention with overturning stops 100 equipped next to the front corners of the device. The stops 100 may be replaceable and ensure that the device does not tip over during tight turns. The overturning stops 100 are generally made of a material that is harmless to soils, such as Teflon, silicone, rubber, plastic, etc. In addition, those skilled in the art will understand that pulleys may be used to exert the same function, spaced at a predetermined distance from the ground are.

Referring to the 1 - 20 Herein, a manner of carrying out the present invention is shown and described. As already explained, the present invention generally resembles prior art soil treatment devices. However, unlike many prior art devices, the present invention provides a place where the operator can stand or sit to allow more efficient performance of their tasks. In addition, rather than using pure force to accomplish the task of steering the cleaning device, a control mechanism and associated hardware are provided to facilitate a smooth transition from one direction to another. The present invention also includes compact profile and a mechanism that allows a 360 ° cleaning of narrow spaces. In addition, for the construction of the remotely operated version of the system known from the prior art software in the chassis 8th be installed to allow the system either to be remotely controlled or to learn the surface to be cleaned during operation. Additionally, a number of cameras can be connected to the chassis 8th be connected to provide a remotely located operator remote viewing.

While various embodiments of the present invention have been described in detail, it will be apparent that modifications and changes to these embodiments will become apparent to those skilled in the art. It is to be expressly understood, however, that such modifications and changes belong to the scope and spirit of the present invention as set forth in the appended claims.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 6206980 [0004]
• US 4759094 [0018]
• US 4196492 [0018]
• US 6625843 [0030]
• US 6594844 [0030]
• US 6535793 [0030]

Claims (21)

Soil treatment device ( 2 ) for surface cleaning, comprising: a chassis ( 8th ) having a bottom surface, a front surface, a back surface, a left surface, and a right surface, the back surface being a platform (Fig. 4 ) adapted to reduce the weight of an operator ( 6 ) to wear; a plurality of wheels operatively connected to the lower surface, a wheel adjacent the left surface and a wheel adjacent the right surface; a steering wheel ( 20 ) which is operatively connected to a third wheel, which is disposed approximately between the left surface and the right surface, and which the chassis ( 8th ) allows you to rotate 360 ° without significantly moving in other directions; a floor treatment mechanism connected to the lower surface; a drive connected to at least one of the plurality of wheels, wherein an electric motor is provided for driving the ground handling device; one in communication with the steering wheel ( 20 ) standing control mechanism; the platform ( 4 ) as a stand space for the operator ( 6 ), so that the operator ( 6 ) can stand on the platform while the operator ( 6 ) controls the soil treatment device from the platform. Soil treatment device ( 2 ) according to claim 1, wherein the soil treatment mechanism is at least one of the following: a brush ( 12 ) which is adapted to agitate water and / or protection, a polishing pad, a puller ( 16 ), a suction, a scrub brush ( 14 ) or a swiveling brush ( 30 ). Soil treatment device ( 2 ) according to any one of the preceding claims, wherein the chassis ( 8th ) has a maximum outer contour of about 50 inches in height, about 26 inches in width, and about 51.5 inches long. having. Soil treatment device ( 2 ) according to one of the preceding claims, wherein a dirt collecting device is provided, which comprises a rotatable puller, which can assume a first use position in which it is positioned at a predetermined distance from the surface to be cleaned, and which can assume a second use position he is essentially positioned on the surface to be cleaned. Soil treatment device ( 2 ) according to claim 4, comprising an actuating system for selectively lifting the puller from the floor, the actuating system comprising a handle-operated lifting system ( 44 ) which is in mechanical communication with a cam which allows the operator to remove the puller ( 16 ) raise and lower. Soil treatment device ( 2 ) according to claim 4, comprising an actuating system for selectively lifting the puller from the floor, the actuating system comprising a motor which allows the operator to remove the puller ( 16 ) raise and lower. Soil treatment device ( 2 ) according to one of claims 4 to 6, wherein the puller ( 16 ) is provided with a plurality of wheels which contact the ground to maintain the vertical spacing of the puller assembly. Soil treatment device ( 2 ) according to one of claims 4 to 7, wherein the puller has lateral rollers to prevent the puller from contacting a vertical surface. Soil treatment device ( 2 ) according to one of claims 4 to 8, wherein the rotatable puller ( 16 ) has a pivoting mechanism that allows the puller ( 16 ) allows to remain in position when the soil treatment device ( 2 ) the direction changes. Soil treatment device ( 2 ) according to claim 9, wherein the puller ( 16 ) with a swivel arm ( 36 ) located one point next to the front wheel of the soil treatment device ( 2 ) pans. Soil treatment device ( 2 ) according to claim 10, wherein the swivel arm ( 36 ) of rolls or warehouses ( 38 ) on a rail ( 40 ), which shows the vertical position of the puller ( 16 ) maintained relative to the ground. Soil treatment device ( 2 ) according to any one of claims 9 to 11, wherein upon a change of direction of the soil treatment device to the right or left of the puller ( 16 ) is kept in a straight line which corresponds to the original path of the soil treatment device ( 2 ), and once a new line has been established, the puller ( 16 ) in its place substantially below the soil treatment device ( 2 ) falls behind. Soil treatment device ( 2 ) according to one of claims 4 to 12, wherein the rotatable puller is automatically transferred from the first position to the second position. Soil treatment device ( 2 ) according to any one of the preceding claims, wherein the platform ( 4 ) an accelerator pedal ( 82 ) and an operator presence switch, the accelerator pedal ( 82 ) interrupts when it is not pressed. Soil treatment device ( 2 ) according to one of the preceding claims, comprising an accelerator pedal ( 82 ) and means for establishing a speed range, wherein no accelerator pedal position causes the device to leave the specified speed range. Soil treatment device ( 2 ) according to one of the preceding claims, further comprising a brake mechanism, wherein the brake mechanism is connected to a console which is arranged at at least one of the following locations: in the vicinity of the control mechanism, on the control mechanism or on the platform ( 4 ). Soil treatment device ( 2 ) according to any one of the preceding claims, further comprising: one or more chemical containers adapted to receive concentrated cleaning chemicals; a chemical selector which responds to inputs by an operator to select one of several of the cleaning chemicals; a liquid container for receiving a basic cleaning liquid; and a mixed tee. Soil treatment device ( 2 ) according to claim 17, wherein a first tube is provided, through which fluid from the one or more chemical containers to and through the chemical selector can flow to an inlet of the mixing tee; and a second tube is provided through which the base cleaning liquid from the liquid container can flow to a second inlet of the mixing tee in which the cleaning liquid and the concentrated cleaning chemicals mix. Soil treatment device ( 2 ) according to any one of the preceding claims, further comprising: a spent fluid tank; and a strainer basket ( 48 ), which with a cover ( 49 ) of the spent fluid tank; the sieve basket ( 48 ) is configured to detect dirt. Soil treatment device ( 2 ) according to any one of the preceding claims, further comprising a fluid unloading system provided with a waste water tank ( 58 ) of the soil treatment device ( 2 ) connected is. Soil treatment device ( 2 ) according to claim 20, wherein the fluid discharge system comprises a drain hose ( 62 ) having.

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