EP4257024A1 - Handheld soil working implement, supply unit for a handheld soil working implement, method for manufacturing a handheld soil working implement and method for cleaning soil with a handheld soil working implement - Google Patents

Abstract

The invention relates to a hand-held soil cultivation device (1) comprising a base part (2) with at least one tool (3) for soil cultivation, as well as at least one motor for driving the tool (3), a guide handle (5) and a supply unit (6). The guide handle (5) comprises a first section (7), a second section (8) and a third section (9). The first section (7) and the third section (9) each have longitudinal axes that are arranged essentially parallel. The second section (8) connects the first section (7) with the third section (9). The invention also relates to a supply unit (6) for a hand-held soil cultivation device (1). The invention further relates to a method for producing a hand-held soil cultivation device (1) and the use of a hand-held soil cultivation device (1).

Description

The present invention relates to a hand-held tillage implement, a supply unit for a hand-held tillage implement, a method for producing a hand-held tillage implement and a method for cleaning a soil with a hand-held tillage implement.

Hand-held soil cultivation devices, in particular cleaning devices, are devices for processing a floor by a user, the floor cultivation device being guided by the user with his hands and thus cleaning the floor. Hand-held soil cultivation devices without a motor are known. Motor-driven hand-held soil cultivation devices are also known. Hand-held tillage implements without a motor are easy to operate and can be used flexibly. However, the processing performance, i.e. the area output with consistent cleaning quality, of hand-held soil cultivation devices without a motor is low, as they become saturated with dirt after a very short time and only spread the dirt around. Motorized walk-behind tillage implements have a higher tillage performance than walk-behind tillage implements without a motor. However, motor-driven hand-held tillage implements are often bulky and cannot be used flexibly. Such motorized hand-held tillage tools often cannot be used under tables or other objects. This inflexibility results in low efficiency when using a hand-held tillage implement with a motor is used by a user in rooms with obstacles (e.g. tables).

It is the object of the invention to overcome the disadvantages of the prior art and in particular to create a soil cultivation device which has a high cleaning performance and at the same time can be used flexibly. The object is achieved by a hand-held tillage device, a supply unit for a hand-held tillage device, a method for producing a hand-held tillage device and a method for cleaning a soil with a hand-held tillage device according to the independent claims.

In particular, the task is solved by a hand-held soil cultivation device. The hand-held soil cultivation device includes a soil part with at least one tool for soil cultivation, at least one motor for driving the tool, a guide handle and a supply unit.
The guide stem includes a first section, a second section and a third section. The first section and the third section have longitudinal axes that are arranged essentially parallel. The second section connects the first section to the third section.

Such a hand-held soil cultivation device can be used flexibly and efficiently and can be used in particular in areas that are angled or narrow or in which there is furniture such as tables or similar.

According to the invention, parallel means that the axes are parallel but not coaxial, i.e. do not have the same axis. The parallel axes are therefore spaced apart.

The soil part can include one or more tools for soil cultivation. The soil preparation tool may be intended to clean, polish or otherwise process the soil. The tillage implement may include one or more motors for driving the tool. These can be, for example, electric motors. Other engines can also be used.

The guide stem may comprise a plastic or a metal or another material. The guide stem can also consist of several materials or a composite material. The supply unit can be arranged on the guide handle or at another position.

The longitudinal axis of the second section can be formed orthogonally to the longitudinal axis of the first section and the longitudinal axis of the third section. The angle between the longitudinal axis of the second section and the longitudinal axis of the first section and/or third section can be in a range of 15° to 85° or 165° to 95°, in particular the angle can be in a range of 35° or 155° or in a range of 45° or 145°.

The guide handle of the hand-held tillage implement can include a fourth and a fifth section. The fifth section can be arranged parallel to the first section and the third section. The fifth section can be arranged coaxially with the first section. The fourth section can connect the fifth section and the third section. The fourth section can be shorter than the second section.

Such a hand-held soil cultivation device has a particularly user-friendly shape and can be used well to cultivate a soil.

The fourth section may be connected to the third section and the fifth section at an angle of 90° each. The angle between the longitudinal axis of the fourth section and the longitudinal axis of the fifth section and/or third section can be in a range of 15° to 85° or 165° to 95°, in particular the angle can be in a range of 35° or 155° or in a range of 45° or 145°. The fourth section may be connected to the third section and the fifth section at angles that substantially correspond to the angles at which the second section is connected to the first section and the third section. The angles at which the second section is connected to the first and third sections and the angles at which the fourth section is connected to the third section and the fifth section may be different.

The fourth section and/or the fifth section can be connected to the base part by a connection.

This means that the base part can be guided by movements of the guide handle and the surface to be cleaned can be precisely processed.

The connection can be made of the same material from which the stem is made. The connection can also consist of another material. The connection can be rigid or articulated. The joint can be provided with elastic elements. It is possible that the joint does not include elastic elements.

The guide handle can include at least one handle. The handle can be arranged on the first section and/or on the third section of the guide handle. The handle or one of the handles can be spherical or elliptical. A spherical handle can be arranged above the first section. The handle can also be cylindrical. The handle can have a longitudinal axis. The longitudinal axis of the handle can be identical to the longitudinal axis of the first section and/or to the longitudinal axis of the third section of the guide handle. The handle can be rotatable about the longitudinal axis.

Such a handle makes the hand-held tillage implement user-friendly and efficient to use. In particular, the soil cultivation device is so easy to handle and can be used flexibly and advantageously in narrow or crowded areas where precise guidance of the soil part is necessary.

The handle can be made of plastic, for example a thermoplastic. The handle can also be made of metal. The handle can include an anti-slip surface structure. The handle can also comprise several materials or be made of a composite material. The surface of the handle can be designed to be anti-slip. The handle can be designed to be endlessly rotatable about the longitudinal axis.

The connection of the hand-held tillage implement can include two adjustable joints. The joint axes of the two joints can lie essentially on the same plane and intersect. The joint axes of the two joints can intersect at right angles. It is also possible that the joint axes of the two joints intersect at a different angle. One Joint axis can be arranged in the processing direction of the soil cultivation device and a joint axis can be arranged at right angles to the processing direction of the soil cultivation device.

By arranging the base part on the guide handle using the movable joint arrangement, it is possible to move the base part around obstacles, such as table legs, in the same way as a mop. In addition, such a joint arrangement can also be used to work on areas that are difficult to reach, such as niches and angles, with the base part. The location of the joint axes on essentially one plane makes the joint particularly compact and yet movable. As a result, the soil cultivation device can be designed to save space and a user can work with the soil cultivation device with very little effort and endurance.

The joint axes of the joints can be arranged at different levels. The first joint axis can be arranged above or below the second joint axis essentially at right angles to the processing direction of the soil cultivation device.

A simple and quick movement of the floor processing device, analogous to wet cleaning with a mop, is made possible by such a joint. It is possible for the guide stem to be connected to the base part with the two joints, with one joint being arranged in a recess in the base part such that the joint axis of the joint intersects the body of the base part. The other joint can then be arranged above it. Such an arrangement makes the soil cultivation device particularly compact. A supply hose can be passed through the upper joint and enter the base part next to the lower joint. In this way the supply hose becomes mechanical not used more than necessary. The supply hose is particularly durable and the tillage tool requires little maintenance.

The first joint and the second joint can be joints of the same design. The first joint and the second joint can also be differently designed joints.

The connection may include a ball joint. The ball joint can be at least partially surrounded by an elastic element. The ball joint can be brought into a rest position by means of the elastic element.

A ball joint moves equally in all directions and has essentially the same friction or resistance in all directions of movement. In addition, a ball joint is particularly robust and insensitive to external mechanical influences such as shocks. If the ball joint is surrounded by an elastic element and can be brought into a rest position by this, a user is advantageously supported in arranging the base part. A user can then work with the soil cultivation device extremely comfortably and for a long time.

The ball of the ball joint and the socket of the ball joint can be made of the same material. The ball of the ball joint and the joint socket of the ball joint can also be made of different materials. The elastic element of the ball joint can be made of rubber or an elastomer or another elastic material. The ball joint can also be surrounded by several elastic elements. It is possible that the ball joint is from a cuff made of plastic or rubber or another material. The cuff can be secured by a spring.

The fifth section of the hand-held tillage implement can be connected to the ground part by an elastic element. The fifth section of the hand-held tillage implement can also be connected to the ground part by at least two elastic elements. The elastic element can have a rest position and a longitudinal axis. The elastic element can be curved from the rest position in a direction perpendicular to the longitudinal axis of the rest position.

The deformation properties of an elastic element can be predefined. In this way, the movement behavior of the base part on the elastic element can be advantageously influenced. By arranging at least two elastic elements, the movement behavior of the base part can be influenced by the interaction of the at least two elastic elements. The soil cultivation device can thus be designed to be particularly advantageous for operation by a user. In addition, the elastic elements can be designed so that they can be replaced by a user. New elastic elements can then be installed if the old elastic elements are defective or worn out. This means that the tillage implement can be maintained quickly and cheaply.

The elastic element can comprise one or more materials. The elastic element can be made of rubber or an elastomer, for example. The elastic element can also include a spring. The elastic element can be designed as a hollow body or as a solid body. The longitudinal axis of the elastic element can essentially be the longitudinal axis of the first section and/or the fifth section of the guide stem are equivalent to. The longitudinal axis of the elastic element can be formed parallel to the first section and/or the third section of the guide stem.

A supply unit can be arranged on the guide handle of the hand-held tillage implement. The supply unit can be arranged on the third section of the guide handle. The supply unit can be releasably attached and/or arranged to be releasably attachable. The supply unit can comprise an energy supply device and/or a cleaning liquid tank and/or a dirty water tank and/or a pump device and/or a suction device.

The supply unit creates a compact unit from which all consumables originate. By arranging the supply unit on the third section of the guide handle, the center of gravity of the supply unit is arranged close to the longitudinal axis of the first section and/or fifth section of the guide handle. This results in an advantageous weight distribution and the soil cultivation device can be used extremely easily, flexibly and gently for the user. A detachable arrangement of the supply unit makes it particularly easy to remove the supply unit from the handle in order to arrange the supply unit on a transport trolley or on a carrying device. Because the cleaning liquid tank and/or the energy supply device and/or the dirty water tank and/or the pumping device and/or the suction device is mounted centrally in the supply unit, the soil processing device can be designed to be extremely compact. In addition, maintenance and cleaning are particularly easy because many parts that need to be maintained or cleaned are concentrated in the supply unit. So the supply unit can with the Components described can be removed and the components can be changed, emptied or charged in a utility room, for example.

The supply unit can be designed to be attachable and detachable with a tool or without tools. The energy supply device can be a battery, an accumulator or a network connection. The energy supply device can be detachably integrated in the supply unit or can be designed as a cable in the event of a network connection. The cleaning liquid tank and/or the dirty water tank can be detachably arranged in the supply unit.

The detachable arrangement of the energy supply device makes it possible for at least two energy supply devices, for example accumulators, to be provided for the operation of a soil cultivation device, with which the soil cultivation device is operated alternately. Then one energy supply device can be located in the supply device while the other energy supply device is being charged in a charging device. If the energy in the energy supply device, which is located in the supply device, runs low, the two energy supply devices can be exchanged quickly and easily. This means that the tillage implement can essentially be operated without any major work breaks. The progress and efficiency of the work are then essentially determined by the endurance of the user. The soil cultivation device is therefore not a limiting factor in daily work.

The supply unit of the hand-held tillage implement can be connected to the soil part via a supply line be. The supply line can be arranged in the fifth section of the guide stem.

The base part of the soil cultivation device can advantageously be supplied with energy and media through the supply line. Due to the arrangement of the supply line in the fifth section of the guide handle, the supply line is at least partially surrounded by other components. This protects the supply line from external mechanical influences. The supply line is arranged advantageously and is particularly low-maintenance and long-lasting.

The supply line can include one or more electrical conductors. The supply line can also include one or more control lines. The supply line can also include a fresh water line and/or a dirty water line. The supply line can be rigid or flexible. Sections of the supply line can also be designed to be rigid, while other parts of the supply line are designed to be flexible. It is also conceivable that further electrical conductors and/or lines for media are formed in the supply line. The supply line can be arranged at least partially in a joint of the fifth section. The supply line can also be arranged completely in a joint of the fifth section.

The supply unit can have a dirty water defoaming device. The dirty water defoaming device can be arranged in the dirty water tank of the supply unit. The dirty water defoaming device can have several slats.

In this way, foam in the dirty water tank can be prevented or at least minimized and the space required by the dirty water tank can be reduced.

The dirty water defoaming device can be made of plastic or metal. The dirty water defoaming device can also be made from other materials or from a combination of several materials or from a composite material. The slats can be designed in such a way that the dirty water is placed between the slats and the dirty water is guided through the curvature of the slats. When the dirty water tank and the supply device are properly arranged, the slats are advantageously opened downwards, towards the bottom of the dirty water tank. Water that is between the slats is thus transported by gravity from the slats to the bottom of the dirty water tank, while the dry air can flow through the slats into the exhaust duct.

The slats can be designed such that at the location where the dirty water hits the slats, the longitudinal axis of the slats is essentially parallel to the longitudinal axis of the dirty water jet. The slats are advantageously designed to be slanted, so that the dirty water jet does not hit the slats with its full cross section, but rather has to travel a certain distance before the entire cross section of the dirty water jet hits the slats. Furthermore, the bevel ensures that larger dirt particles are passed on better and thus prevents blockages. The slats can have multiple curvatures. Due to the arrangement of the slats and the shape of the slats, the dirty water jet is divided into the spaces between the slats. Gravity causes the divided dirty water to become steel, which located between the slats, is conveyed to the bottom of the dirty water tank. Due to the arrangement of the dirty water defoaming device with the slats, the dirty water that enters the dirty water tank through the dirty water inflow drips and slides gently into the dirty water that is already in the dirty water tank. Without the dirty water defoaming device, the dirty water would enter the dirty water tank in a jet and significantly more foam would be produced. The dirty water defoaming device thus prevents or at least minimizes foam.

A support device can be formed on the guide handle of the hand-held tillage implement. The support device can be formed in the third section of the guide handle. The support device can have a working position and a standing position. The support device can be lowered from the working position to the standing position. The lowering movement can be linear.

The hand-held tillage implement can be advantageously supported by the support device. The support device can be designed so that a user can lower the support device with a foot or hand without bending over. The support device can then be moved from the working position to the standing position to protect the user's back.

The support device can be made of plastic. The support device can also be made of metal or other materials. The support device can also comprise several materials. The support device can include wheels or rollers, in particular two wheels or rollers, so that the hand-held soil cultivation device can be transported. The wheels or rollers can be designed as solid bodies or as hollow bodies. It is also conceivable that the wheels are hollow and can be filled with air or another gas mixture or with a gas.

The support device can also include a locking device, so that the support device can be locked in the working position and/or the standing position. It is also possible that the support device can be brought into other positions and locked.
It is also conceivable that the support device has a clamping device. In the essentially relaxed position of the clamping device, the support device is in the cleaning position. The support device can then be lowered into the standing position by a user. During the lowering process, the tensioning device is tensioned. In the standing position, the support device can then be locked with the clamping device tensioned. The support device can be moved from the standing position to the working position by releasing the locking device. As soon as the locking device has been released, the tensioning device relaxes and the support device simultaneously moves from the standing position to the working position.

In this way, it is possible to lower the support device with the user's foot or hand in a way that is gentle on the user's back and it is possible to move the support device back into the cleaning position in a way that is gentle on the back by releasing the locking device with the foot or hand. This results in an extremely quick and gentle transition for a user from the working position to the standing position or from the standing position to the working position.

The support device may be substantially lowerable while the first section and the third section of the guide post are in a vertical position until the rollers or wheels of the support device contact the ground. Then the tillage implement is supported in the standing position of the support device by the wheels/rollers of the support device and by the cleaning tools and the squeegee lip on the ground. The vertical position of the support device and the first section and the third section of the guide handle results in a substantially vertical position of the soil cultivation device. The soil cultivation device can be arranged in a very space-saving manner, for example in a utility room.

By means of a support device with wheels/rollers, the soil cultivation device can be pivoted by a user in the essentially vertical supported position about the wheel axis/roller axis and can thus be brought into a driving position. In the driving position, the tillage implement is supported by the wheels/rollers and held by the user. In the driving position, the soil cultivation device can then be moved by a user from one application location of the soil cultivation device to another application location or from a storage location to an application location or from one application location to a storage location. The support device means that a user does not have to carry the full weight of the tillage implement. Rather, a large part of the weight is carried by the wheels/rollers. The process is therefore an extremely gentle and efficient process for a user.

Alternatively or additionally, the task is further solved by a hand-held soil cultivation device which includes a soil part. The base part includes at least one tool for the soil cultivation and a motor to drive the tool. The guide stem has a connection device for a supply hose. The connection device can have a coupling device in the form of a rotary feedthrough for a supply hose. The rotary feedthrough is designed such that a coupling element of a supply hose can be connected to the coupling device, so that the supply hose is freely rotatable relative to the guide handle. The rotary feedthrough can be arranged in particular in the first section of the guide handle.

Thanks to such a rotary feedthrough, the soil cultivation device can be used regardless of the current position of the supply hose. In particular, the base part of the soil cultivation device can be used flexibly in narrow and/or angled areas without the supply hose significantly hindering the use of the soil cultivation device. The movable arrangement of the supply hose on the guide handle also ensures that a user uses the tillage device in the cleaning direction that is required for an optimal cleaning result. The movable arrangement of the supply hose on the guide handle thus reduces the likelihood that a user will not use the tillage implement optimally out of convenience because the supply hose may be arranged unfavorably if it is immovably attached.

The coupling device, in particular the rotary feedthrough, can be designed in such a way that dirty water and/or fresh water or cleaning fluid and/or electrical current and/or electrical signals can be conducted through the supply hose and the coupling device. The coupling device can be a dirty water coupling, a fresh water coupling or a cleaning liquid coupling and/or include an electric clutch and/or an electronic clutch. The electrical coupling can have sliding contacts. The dirty water coupling can comprise two interlocking pipes that can be rotated relative to one another. The fresh water coupling can comprise two interlocking pipes that can be rotated relative to one another and which enclose the dirty water coupling. The dirty water coupling and the fresh water coupling are therefore arranged in particular coaxially. Freely rotatable means that the supply hose is arranged on the coupling device of the connecting device so that it can rotate endlessly. Fresh water and cleaning water or cleaning liquid are to be understood as equivalent in the context of the invention.

The coupling device of the hand-held tillage implement can be connected to a coupling element of a supply hose. The supply hose can include a line for cleaning fluid and/or a line for dirty water and/or an electrical line and/or an electronic control line.

By means of such a coupling device, several media and/or liquids can be guided to and from the base part of the soil cultivation device. It is particularly advantageous that a user can use the coupling device to connect all of the lines that run in the supply hose to the soil cultivation device in one connection process. This prevents a user from having to connect each of the lines individually. This minimizes both the number of connection processes and the duration of the connection process. The low number of connection processes per user minimizes application errors. Thus, the coupling device ensures ensures that the tillage implement can be operated extremely efficiently and with little error.

Electrical or electronic signals can be transmitted to the soil processing device through the control line. It is also possible for electrical energy and control signals to be conducted through the electrical line.

The supply hose of the hand-held tillage implement can be connected to a supply unit. The supply unit can have a carrying device for carrying the supply unit on the back of a user. The supply unit can also include a transport trolley for moving the supply unit on wheels. The supply unit can comprise a power supply device and/or a cleaning liquid tank and/or a dirty water tank and/or a pump device and/or a suction device. The dirty water tank may include a defoaming device as described above.

Such a carrying device or such a transport trolley makes the soil cultivation device particularly flexible and can be used comfortably and gently for the user. The carrying device makes it possible to use the soil cultivation device in areas that are not or only very difficult to access for ground-based cultivation devices, such as stairs, winding areas or sloping/inclined planes. A user who carries the supply unit with the carrying device on his back does not have to carry a transport cart with him during the work process. Rather, the user can concentrate on the cleaning process. This makes the cleaning process efficient and accurate. The energy supply device of the supply unit can be used without a cable, for example as a battery or accumulator. be trained. Then a user does not have to laboriously lay a power cable that could potentially trip over passers-by in the audience area. This further enhances the above-described effect of flexibility in the use of the soil cultivation device.

The transport trolley can include wheels and/or rollers. The wheels and/or rollers can be designed as solid bodies or as hollow bodies. The wheels can be filled with air or another gas mixture or a gas. The trolley can include a handle. The carrying device can be designed in such a way that it can be detachably arranged on the supply unit without tools. The transport trolley can have a dirty water collection tray. The dirty water collecting trough can be designed in such a way that the base part of the soil cultivation device can be arranged on the dirty water collecting trough. The soil cultivation device can then be transported on the transport trolley after a cleaning process without dirty water dripping from the floor part onto the floor. The transport trolley can also have a receiving device for the guide handle of the tillage implement. Then the base part can be arranged on the dirty water collecting tray and the guide handle can be arranged in the receiving device for the guide handle.

The cleaning fluid tank of the hand-held tillage implement and/or the dirty water tank of the hand-held tillage implement can be removable and fastened without tools.

In this way, a user can advantageously remove or attach the cleaning liquid tank and/or the dirty water tank without tools.

The cleaning liquid tank and/or the dirty water tank can be arranged on the supply device, for example with buckles or click devices.

The base part of the hand-held soil cultivation device can include two counter-rotating tools. The counter-rotating tools can be designed as cleaning plates. The axes of rotation of the tools cannot be arranged exactly vertically when used as intended. The axes of rotation of the tools are therefore not parallel.

Such an arrangement and movement of the cleaning tools results in a propulsion of the hand-held tillage implement, through which a user can use and operate the hand-held tillage implement in a particularly advantageous and energy-saving manner.

The cleaning plates can include work elements such as brushes and/or receiving plates for scouring pads. It is also possible that the cleaning plates include other cleaning devices. The cleaning plates can be arranged on the base part of the soil cultivation device in a detachable manner without tools.

The object of the invention is further achieved by a supply unit for a hand-held soil cultivation device, in particular for a soil cultivation device as described above. The supply unit includes an energy supply device and a cleaning liquid tank and a dirty water tank and a suction device and a connection coupling. In particular, the supply unit comprises a pump device. The connection coupling can be connected to a supply line. The supply line is either with a ground part or connectable to a coupling device of a connection device.

With such a supply unit, a hand-held soil cultivation device can be advantageously operated. The supply unit supplies all the necessary media and energy to the tillage device in a compact and uncomplicated manner and drains the dirty water.

The supply unit can be connectable to a guide handle or a transport trolley or a carrying device.

Such a supply unit can be flexibly adapted to the respective type of use and it is therefore not necessary to buy three different devices.

• Herstellen einer Versorgungseinheit wie vorhergehend beschrieben,
• Insbesondere Umgeben der Versorgungseinheit mit einem Gehäuse,
• Verbinden der Anschlusskupplung mit einer Versorgungsleitung direkt zum Bodenteil oder einer Versorgungsleitung zu einer Kupplungsvorrichtung einer Anschlussvorrichtung.

The object is further achieved by a method for producing a hand-held soil cultivation device, in particular as described above. The procedure includes the following steps:

• Creating a supply unit as described above,
• In particular, surrounding the supply unit with a housing,
• Connecting the connection coupling to a supply line directly to the base part or a supply line to a coupling device of a connection device.

With such a method, a hand-held soil cultivation device can be advantageously manufactured. By connecting the connection coupling to a supply line, which is connected to the coupling device of a base part or the coupling device is connected to a connecting device, several versions of the hand-held tillage implement can be produced using the method. It is possible for the supply unit to be arranged on the guide handle and thus produce a version of the soil cultivation device in which the supply unit is arranged on the guide handle and is moved by the user with the guide handle during the cleaning process. It is also possible for the supply unit to be arranged on a transport trolley and for the connecting coupling to then be connected to the coupling device of a connecting device. A user can then carry out the cleaning process with the base part on the guide handle while the supply device is arranged on the transport trolley. It is also possible for the supply device to be arranged on a carrying device and the connecting coupling to then be connected to the coupling device of a connecting device. A user can then shoulder the carrying device with the supply unit and carry out the cleaning process with the base part on the guide handle while the supply unit is on the carrying device on the user's back.

The object of the invention is further achieved by a method for cleaning a floor with a hand-held soil cultivation device as described above. The base part has an underside on which the at least one tool is arranged. The underside also has a pull-off lip, with the pull-off lip being arranged behind the tools when viewed in the direction of movement of the base part. When used as intended, the pull-off lip is at least partially arranged on the side of the base part facing away from the user. When used as intended, the user walks backwards and the base part is guided in a meandering manner towards the user with the help of the guide handle.

By arranging the removal lip on the side facing away from the user, the cleaning and removal process can be carried out analogously to the previously known mop or wet wiping process. In addition, a cleaning process can be carried out by a user without the user having to re-enter the area that has already been cleaned, since he himself moves backwards. In this way, a particularly positive cleaning result can be achieved.

Figur 1:

Ein handgeführtes Bodenbearbeitungsgerät mit einem Benutzer;

Figur 2:

Ein handgeführtes Bodenbearbeitungsgerät mit einer Versorgungseinheit am Führungsstiel;

Figur 3:

Eine Rückansicht eines handgeführten Bodenbearbeitungsgerätes mit einer Versorgungseinheit am Führungsstiel;

Figur 4:

Eine Seitenansicht eines handgeführten Bodenbearbeitungsgerätes;

Figur 5:

Ein handgeführtes Bodenbearbeitungsgerät mit einem Transportwagen;

Figur 6:

Ein Bodenteil eines handgeführten Bodenbearbeitungsgerätes mit einer Kupplungsvorrichtung;

Figur 7:

Eine Anschlusskupplung eines Führungsstiels eines handgeführtes Bodenbearbeitungsgerätes mit einer Kupplungsvorrichtung;

Figur 8:

Eine Ansicht eines Bodenteils eines handgeführten Bodenbearbeitungsgeräts;

Figur 9:

Eine Rückansicht eines Bodenteils eines handgeführten Bodenbearbeitungsgerätes;

Figur 10:

Eine Ansicht einer Anschlussvorrichtung teilweise ohne Gehäuse mit einer Schmutzwasserleitung und einem Versorgungsschlauch;

Figur 11:

Einen Längsschnitt durch eine Anschlussvorrichtung;

Figur 12:

Eine Ansicht einer Anschlussvorrichtung;

Figur 13:

Eine Ansicht eines Kreuzgelenks;

Figur 14:

Eine Ansicht einer Tragvorrichtung;

Figur 15:

Eine Ansicht einer Tragvorrichtung mit einer Versorgungseinheit;

Figur 16:

Eine Ansicht einer Versorgungseinheit mit einem Schmutzwassertank;

Figur 17:

Eine Ansicht einer Versorgungseinheit mit einer Schmutzwasserzufluss;

Figur 18:

Eine Ansicht eines Deckels einer Versorgungseinheit mit einer Schmutzwasserzufluss und einer Schmutzwasserentschäumungsvorrichtung.

The invention is explained in more detail in the following figures. This shows:

Figure 1:

A single-operator walk-behind tillage implement;

Figure 2:

A hand-held tillage implement with a supply unit on the guide handle;

Figure 3:

A rear view of a hand-held tillage implement with a supply unit on the guide handle;

Figure 4:

A side view of a walk-behind tillage implement;

Figure 5:

A walk-behind tillage implement with a transport cart;

Figure 6:

A base part of a hand-held tillage implement with a coupling device;

Figure 7:

A connecting coupling of a guide handle of a hand-held tillage implement with a coupling device;

Figure 8:

A view of a bottom portion of a walk-behind tillage implement;

Figure 9:

A rear view of a floor portion of a walk-behind tillage implement;

Figure 10:

A view of a connection device partially without a housing with a dirty water pipe and a supply hose;

Figure 11:

A longitudinal section through a connection device;

Figure 12:

A view of a connection device;

Figure 13:

A view of a universal joint;

Figure 14:

A view of a carrying device;

Figure 15:

A view of a carrying device with a supply unit;

Figure 16:

A view of a utility unit with a dirty water tank;

Figure 17:

A view of a utility unit with a dirty water inlet;

Figure 18:

A view of a cover of a supply unit with a dirty water inlet and a dirty water defoaming device.

Figure 1 shows a hand-held soil cultivation device 1 with a user 40. The user 40 carries the supply unit 6 on his back with a carrying device 34. The supply unit 6 is connected to the guide handle 5 by means of a supply hose 27 and the connecting device 26. The guide handle 5 has a first section 7, a second section 8, a third section 9, a fourth section 10 and a fifth section 11. The first section 7 and the third section 9 have a handle 13. The second section 8 connects the first section 7 with the second section 9. The connection 12 connects the fifth section 11 of the guide stem 5 with the base part 2. The connection 12 has a first joint 14 with a first joint axis 15 and a second joint 16 . The joint axis 17 of the second joint 16 is arranged so that it intersects the body of the base part 2.

Figure 2 shows a hand-held soil cultivation device 1 with a supply unit 6 on the guide handle 5. The guide handle 5 has a first section 7, a second section 8, a third section 9, a fourth section (not shown) and a fifth section 11. The first section 7 and the third section 9 each include a handle 13. The supply unit 6 includes a cleaning liquid tank 21. A support device 25, which is in the standing position, is arranged on the third section 9 of the guide handle 5. The fifth section 11 of the guide stem 5 is connected to the base part 2 by a connection 12. The connection 12 has a first joint 14. Through the first joint 14 the supply line 24 runs. The connection 12 also has a second joint 16. The joint axis 17 of the second joint 16 is arranged so that it intersects the body of the base part 2. The base part 2 has a tool for soil cultivation 3 and a puller lip 37.

Figure 3 shows a rear view of a hand-held tillage implement 1 with a supply unit 6 on the guide handle 5. The guide handle 5 includes a first section 7, a second section 8 and a third section 9. The first section 7 and the third section 9 have a handle 13. The second section 8 connects the first section 7 with the third section 9. The guide handle 5 has a support device 25, which is in the cleaning position. The supply unit 6 has a cleaning liquid tank 21. The base part 2 has a processing direction 18. In addition, the base part 2 has two tools for soil cultivation 3 and a pull-off lip 37.

Figure 4 shows a side view of a hand-held soil cultivation device 1 with a base part 2. A supply hose 27 is attached to the guide handle 5. The supply hose 27 is connected to the guide handle 5 by means of the connecting device 26. The guide handle 5 has a first section 7, a second section 8, a third section 9, a fourth section 10 and a fifth section 11. The first section 7 and the second section 9 are arranged parallel and spaced apart. The second section 8 connects the first section 7 with the third section 9. The fourth section 10 connects the third section 9 with the fifth section 11. The first section 7 and the third section 9 each have a handle 13. The fifth section 11 of the guide handle 5 is connected to the base part 2 by means of a connection 12 connected. The hand-held soil cultivation device 1 has a processing direction 18. The connection 12 comprises a first joint 14 with a first joint axis 15. The first joint axis 15 of the first joint 14 intersects the processing direction 18 in this position. The base part 2 has a tool 3 for soil cultivation.

Figure 5 shows a hand-held soil cultivation device 1 with a transport trolley 35. The supply unit 6 is arranged on the transport trolley 35. The supply unit 6 includes a cleaning liquid tank 21 and a connecting coupling 36. The guide handle 5 is connected to the base part 2 with a connection 12. The connection 12 includes a first joint 14. The guide stem 5 includes a first section 7, a second section 8, a third section 9, a fourth section 10 and a fifth section 11. The second section 8 connects the first section 7 to the third Section 9. The longitudinal axes of the first section 7 and the third section 9 of the guide handle 5 run parallel and spaced apart. The first section 7 and the third section 9 each have a handle 13. The supply hose 27 is connected to the connecting device 26 with the guide handle 5. The base part 2 is arranged in a dirty water collecting tray.

Figure 6 shows a base part 2 of a hand-held soil cultivation device 1 with a connecting coupling 36 and a connection 12. The connection 12 has a first joint 14 with a first joint axis 15. The supply line 24 runs in the first joint 14. The connecting coupling 36 has a dirty water line 31. The connection coupling also has two electrical lines 32, as well as two control lines 33 and a cleaning fluid line 30.

Figure 7 shows the connection device 26 of a guide handle 5 of a hand-held soil cultivation device with a coupling device 29. The coupling device 29 of the connection device 26 has a cleaning fluid line 30 as well as two electrical lines 32, two control lines 33 and a dirty water line 31.

Figure 8 shows a view of the base part 2 of a hand-held soil cultivation device. The base part 2 has a tool 3 for soil cultivation and a pull-off lip 37. The guide stem (not shown) has a fourth section 10 and a fifth section 11. The fifth section 11 of the guide stem (not shown) is connected to the base part with the connection 12. The fourth section 10 of the guide handle (not shown) has a coupling device 29. The connection has a first joint 14 with a first joint axis 15 and a second joint 16. A supply line 24 is movably arranged in the first joint 14. The second joint 16 is arranged on the bottom part 2 in such a way that the joint axis 17 of the second joint intersects the body of the bottom part 2.

Figure 9 shows a rear view of a base part 2 of a hand-held tillage implement. The base part 2 has two tools 3 for soil cultivation and a squeegee lip 37. The guide handle (not shown) has a fourth section 10 and a fifth section 11. The fifth section 11 of the guide handle (not shown) is connected to the base part 2 with a connection 12. The connection 12 has a first joint 14 with a first joint axis 15 and a second joint 16 with a second joint axis 17. The second hinge axis 17 intersects the body of the base part 2. The supply line 24 is located in the first joint 14. The fourth section 10 has a coupling device 29. The coupling device 29 includes a line for cleaning liquid 30, a dirty water line 31, two electrical lines 32 and two control lines 33.

Figure 10 shows a view of a connection device 26 in the form of a rotary feedthrough, partially without a housing, with a dirty water pipe 31 and a supply hose 27. The connection device 26 is arranged at the head of the first section 7 of the guide handle 5. The guide handle 5 includes a second section (not shown) and a third section (not shown). The second section (not shown) connects the first section 7 to the third section (not shown). The first section 7 is formed parallel to the third section (not shown). The dirty water pipe 31 runs in the first section 7, the second section (not shown), the third section (not shown) and in the supply hose 27. The first section 7 includes a handle 13. The handle 13 is at the upper end of the first section 7 trained. The connecting device 26 allows the supply hose 27 to rotate freely relative to the guide handle 5.

Figure 11 shows a longitudinal section through a connection device 26 Figure 10 . The connection device 26 includes a cleaning liquid line 30 and a dirty water line 31. The dirty water line 31 is arranged in the middle of the connection device 26. The longitudinal axis of the dirty water pipe 31 and the longitudinal axis of the connecting device 26 are identical. The dirty water pipe 31 comprises two interlocking pipes that can be rotated relative to one another. The cleaning liquid line 30 comprises two interlocking, Pipes that can be rotated relative to one another and which at least partially enclose the dirty water pipe 31. In a first region in the flow direction of the cleaning liquid, the cleaning liquid line 30 initially does not run coaxially but rather eccentrically to the dirty water pipe 31. In a second region following the first region in the flow direction of the cleaning liquid, the cleaning liquid line 30 runs coaxially around the dirty water pipe 31. In a third area adjoining this in the direction of flow of the cleaning liquid, the cleaning liquid line 30 again does not run coaxially, but preferably eccentrically to the dirty water line 31. The possibility of rotation is in the second area.

Furthermore, the connection device 26 comprises an electrical line 32 and a control line 33. The electrical line 32 and the control line 33 are each rotatably connected in the connection device 26 by means of a sliding contact. The circuit boards with the sliding contacts are arranged concentrically to the longitudinal axis of the device 26.

Figure 12 shows a view of a connection device 26. The connection device 26 is arranged in the first section 7 of the guide stem 5. The guide handle 5 comprises a second section 8 and a third section 9. The second section 8 connects the first section 7 with the third section 9. The first section 7 is formed parallel to the third section 9. The first section 7 of the guide handle includes a handle 13. The handle 13 is partially designed as a ball and is freely rotatable. The connecting device 26 allows the supply hose 27 to rotate freely relative to the guide handle 5.

Figure 13 shows a view of a universal joint. The universal joint has a first joint 14 with a first joint axis 15 and a second joint 16 with a second joint axis 17. The first joint axis 15 and the second joint axis 17 are on one level. The first joint axis 15 and the second joint axis 17 intersect orthogonally.

Figure 14 shows a view of a carrying device 34. The carrying device 34 is designed such that a supply unit (not shown) can be attached to the carrying device 34.

Figure 15 shows a view of a carrying device 34 with a supply unit 6. The supply unit 6 comprises a cleaning liquid tank 21 and an energy supply device 20.

Figure 16 shows a view of a supply unit 6 with a dirty water tank 22. The cleaning liquid tank (not shown) is located in the supply unit 6.

Figure 17 shows a view of a supply unit 6 with a dirty water inlet 39. The cleaning liquid tank (not shown) and the dirty water tank (not shown) are not in the supply unit 6.

Figure 18 shows a view of an upper region of a supply unit 6 with a dirty water inflow 39 and a dirty water defoaming device 41. The dirty water defoaming device 41 has slats 42. The slats 42 of the dirty water defoaming device 41 are arranged so that the dirty water acts on the slats essentially in the direction of the longitudinal axis of the slats. The slats 42 are designed to be slanted in the area of the dirty water inflow 39, so that a substantially cylindrical dirty water jet, which flows from the dirty water inflow, does not hit the slats with its full cross-section but first hits the slats with part of its cross-section and only hits the slats with its entire cross-section after a certain distance has been covered.

Claims (20)

Hand-held soil cultivation device (1), comprising - a base part (2) with at least one tool (3) for soil cultivation, - at least one motor for driving the tool (3), - a guide handle (5) - and a supply unit (6), wherein the guide handle (5) has a first section (7), a second section (8) and a third section (9), characterized in that the first section (7) and the third section (9) have longitudinal axes which are in Are arranged essentially parallel and the second section (8) connects the first section (7) and the third section (9). Hand-held soil cultivation device (1) according to claim 1,
characterized in that the guide handle (5) comprises a fourth section (10) and a fifth section (11), the fifth section (11) being arranged parallel to the first section (7) and third section (9) and the fourth section (10) connects the fifth section (11) and the third section (9), the fourth section (10) being in particular shorter than the second section (8). Hand-held soil cultivation device (1) according to claim 2,
characterized in that the fourth section (10) and/or fifth section (11) is connected to the base part (2) by a connection (12). Hand-held soil cultivation device (1) according to one of the preceding claims, characterized in that the Guide handle (5), in particular the first section (7) and/or the third section (9) of the guide handle (5), comprises a handle (13) which has a longitudinal axis and the longitudinal axis in particular with the longitudinal axis of the first section (7) and/or the third section (9) of the guide handle (5) is identical and the handle (13) is preferably rotatable about the longitudinal axis. Hand-held soil cultivation device (1) according to claim 3 or 4, characterized in that the connection comprises two adjustable joints (14, 16), the joint axes (15, 17) of the two joints (14, 16) lying essentially on one plane and intersect, especially at right angles. Hand-held soil cultivation device (1) according to claim 3 or 4, characterized in that the connection (12) comprises a first adjustable joint (14) with a first joint axis (15) and a second adjustable joint (16) with a second joint axis (17). , wherein the first joint axis (15) is arranged essentially at right angles to the processing direction (18) of the soil cultivation device (1) above the second joint axis (17) and wherein the second joint axis (17) is arranged essentially at right angles to the first joint axis (15). Hand-held soil cultivation device (1) according to one of claims 3 to 5, characterized in that the connection (12) comprises a ball joint, the ball joint being in particular at least partially surrounded by an elastic element, through which the ball joint can preferably be brought into a rest position. Hand-held soil cultivation device (1) according to one of claims 2 to 7, characterized in that the fifth section (11) is connected to the base part (2) by an elastic element, preferably at least two elastic elements, the elastic element having a rest position and has a longitudinal axis and is preferably curveable from the rest position in a direction perpendicular to the longitudinal axis of the rest position. Hand-held soil cultivation device (1) according to one of the preceding claims, characterized in that a supply unit (6) is arranged on the guide handle (5), in particular on the third section (9), the supply unit (6) being in particular releasably attached and/or attachable is and preferably comprises an energy supply device (20) and/or a cleaning liquid tank (21) and/or a dirty water tank (22) and/or a suction device. Hand-held soil cultivation device (1) according to claim 9,
characterized in that the supply unit (6) is connected to the base part (2) via a supply line (24), the supply line (24) being arranged in particular in the fifth section (11) of the guide handle (5). Hand-held soil cultivation device (1) according to one of claims 9 to 10, characterized in that the supply unit (6), in particular the dirty water tank (22) of the supply unit (6), has a dirty water defoaming device (41), which in particular comprises a plurality of slats (42). . Hand-held soil cultivation device (1) according to one of the preceding claims, characterized in that a support device (25) is formed on the guide handle (5), in particular on the third section (9) of the guide handle (5), the support device (25) having a working position and has a standing position and the support device (25) can be lowered from the working position to the standing position, in particular linearly, onto the floor. Hand-held soil cultivation device (1), in particular according to one of claims 1 to 12, comprising a base part (2) with at least one tool (3) for soil cultivation and a motor for driving the tool (3) and a guide handle (5), wherein the Guide handle (5) has a connection device (26) in the form of a rotary feedthrough for a supply hose (27), characterized in that the connection device (26) has a coupling device (29) for a supply hose (27), the coupling device (29) being such is designed in that a coupling element of a supply hose (27) can be connected to the coupling device (29), so that the supply hose (27) is freely rotatable relative to the guide handle (5) and is arranged in particular in the first section (7) of the guide handle (5). . Hand-held soil cultivation device (1) according to claim 13,
characterized in that the coupling device (29) is connected to a coupling element of a supply hose (27), the supply hose (27) having a line (30) for cleaning fluid and/or dirty water (31) and/or an electrical line (32) and / or a control line (33). Hand-held soil cultivation device (1) according to claim 14,
characterized in that the supply hose (27) is connected to a supply unit (6), the supply unit (6) being either a carrying device (34) for carrying the supply unit (6) on the back of a user (40) or a transport trolley (35 ) for moving the supply unit (6) on wheels and the supply unit (6) preferably comprises an energy supply device (20) and / or a cleaning liquid tank (21) and / or a dirty water tank (22) and / or a suction device. Hand-held soil cultivation device (1) according to claim 9 or 15 , characterized in that the cleaning liquid tank (21) and/or the dirty water tank (22) can be removed and attached without tools. Hand-held soil cultivation device (1) according to one of the preceding claims, characterized in that the base part (2) comprises two counter-rotating tools (3), in particular cleaning plates, the axes of rotation of the tools (3) not being arranged exactly vertically when operated as intended. Supply unit (6) for a hand-held soil cultivation device (1), in particular a soil cultivation device (1) according to one of the preceding claims, comprising an energy supply device (20) and a cleaning liquid tank (21) and a dirty water tank (22) and a suction device and a connection coupling (36 ), wherein the connection coupling (36) can be connected to a supply line (24), the supply line (24) being connected either to a base part (2) or to a connection device (26) of a coupling device (29) of a guide handle (5) can be connected. Method for producing a hand-held soil cultivation device (1), in particular according to one of claims 1 to 17, comprising the steps a.Producing a supply unit (6) according to claim 18, b.In particular, surrounding the supply unit (6) with a housing, c. Connecting the connection coupling (36) to a supply line (24) directly to the base part (2) or a supply line (24) to a coupling device (29) of a connection device (26). Method for cleaning a floor with a hand-held soil cultivation device (1) according to one of claims 1 to 17, wherein the floor part (2) has an underside on which the at least one tool (3) is arranged and has a pull-off lip (37), wherein the pull-off lip (37) is arranged behind the tools (3) when viewed in the processing direction (18) of the base part (2), characterized in that when used as intended, the pull-off lip (37) is at least partially on the side of the base part facing away from the user (40). (2) is arranged so that the user (40) walks backwards when cleaning.

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