EP2962614A1 - Handheld floor treatment device - Google Patents

Abstract

The invention relates to a hand-held soil cultivation device having a bottom part (1) with a liquid supply (11) and a liquid receptacle (13) and a structurally separate, at least one suction turbine (17) containing suction unit. Furthermore, the invention relates to a hand-held tillage implement comprising a bottom part (1) with a bracket (5) which surrounds the bottom part (1) at least partially and connected via a machining direction (6) adjustable first joint (4) with the bottom part (1) is and further comprising a on the bracket (5) mounted guide member (2) with a handle part (3). The guide part (2) has at the lower end below the middle, but above the bottom part (1) on another joint (8) about which the guide part (2) transversely to the machining direction (6) is adjustable, so that the bottom part (1 ) can be rotated by a user (P) parallel to the working surface (B) about a vertical axis (A1) of the bottom part (1) by at least ± 45 ° even with inclined guide part (2).

Description

Technical area

The invention relates to a hand-held harrow for processing soils by scrubbing, polishing or grinding.

State of the art

From the EP 0 978 249 a device for the treatment of surfaces is known, in particular for cleaning and polishing, which provides a movable joint in at least two directions between a holding device and the bottom part. This joint allows the user to adjust by tilting the holding device handle height of the user's personal size and move the device in the machine direction back and forth, as well as perform lateral movements with the device.

Since the hinge is arranged laterally on the bottom part and the bottom part has protruding parts, however, the lateral mobility is limited.

From the DE 203 02 630 U1 a steam scrubbing machine with a movable in the processing direction relative to the bottom part handle part is known, which has a water tank, a water pump, a heater and a steam distributor on the bottom part. As an advantageous development, a vacuum cleaner unit, which is likewise attached to the bottom part and comprises an intake space, a suction pump, a suction channel and an intake opening, is disclosed for dry cleaning.

Furthermore, back vacuum cleaner with a back unit and a support frame are known in which the back unit comprises at least one suction pump and a Einsaugraum. To increase the mobility and an energy storage for powering the pump may be provided in the back unit.

The DE 196 22 856 A1 discloses a hand-held surface scrubber having at least one, preferably two, disc brushes, as well as at least one roller brush, and which is moved supported on wheels. Furthermore, a suction strip is provided, which is preferably attached to the rear end of the cleaning device, and which is connected via a hose to a receiving container for dirty water. A container for cleaning fluid is also attached to the surface scrubber.

However, this surface scrubber has the disadvantage that its weight is increased by the liquid container mounted on the device itself, and that although the wheels allow easy movement in the linear direction, but allow no real mobility in the lateral direction.

From the EP 0 560 523 A2 For example, there is known a lip for a mop having on one side surface projections along its length with non-protruding spaces between the projections extending upwardly from the bottom edge, the other side surface being smooth. If this lip is moved with its smooth side over a soil, then it forms a seal with the soil, which does not let through water. If the lip with the protruding side surface is moved over the ground, then water can flow through said gaps. This allows a suction unit consisting of two corresponding lips in two directions, back and forth to absorb water.

The invention has for its object to provide a harrow, which in addition to polishing or grinding also allows the wet cleaning while being easily movable and operated by hand.

Presentation of the invention

The inventive hand-held harrow has a bottom part with at least one tool for soil cultivation and a motor for driving the at least one tool, and a guide member with a handle part, wherein the guide member via a first adjustable direction in the machining direction with a hinge axis transverse to the machining direction with the Floor part is connected. The bottom part has a liquid supply and a liquid intake. Furthermore, a structurally separate suction unit is provided which comprises at least one suction turbine for receiving liquid.

The molding of the suction unit as a separate structurally separate unit makes it possible to keep the weight of the bottom part and the guide member low and thus to ensure the easiest possible, resistance-free movement of the bottom part by means of the guide member. The structurally separate suction unit according to the invention comprises at least the suction turbine.

Advantageously, a container for the liquid absorbed at the bottom part and / or on the guide member is arranged and connected via a hose with the structurally separate suction unit.

The structural separation of the container for the liquid absorbed by the suction turbine can be ensured in a simple manner that the suction turbine does not come into contact with liquid. The provision of the container for the liquid absorbed at the bottom part has the further advantage that the path for the water to be absorbed from the bottom into the container for the liquid absorbed is as short as possible, thereby increasing the effective suction power of the suction turbine.

Advantageously, the container for the liquid absorbed is elongated along the guide part. As a result, the liquid in the container for the absorbed liquid always remains as close as possible to the guide part, even when the guide part is inclined. whereby the movement of the bottom part by means of the guide member is not unnecessarily complicated by the weight of the liquid.

Advantageously, the structurally separate suction unit has a container for the absorbed liquid. As a result, the bottom part and the guide part are not weighted by the weight of the liquid received and their mobility is not limited thereby.

Advantageously, the container for the absorbed liquid has an outlet opening and an outlet nozzle adjoining the outlet opening or an outlet tube with a closure.

As a result, the liquid absorbed by the suction unit can be drained off again. The closure should be as simple as possible, so that the pollution contained in the liquid absorbed does not affect the sealing ability of the closure. Furthermore, a large lid can be provided, which allows a quick and easy emptying and also a simple cleaning of the container for the liquid absorbed.

Advantageously, the suction unit is designed as a further ground unit. Another ground unit, which has, for example, wheels and can be pulled by means of a traction device behind the harrow, is simple and inexpensive to implement, since the size of a ground unit is not very critical. A ground unit does not have to be particularly small in order to easily pull it on wheels and to not particularly affect the user in his work.

Advantageously, the suction unit is designed as a unit to be fastened to the body of a user.

A body-to-fastened unit restricts the user little in his freedom of movement and allows easy movement of the bottom part by means of the guide part due to the lower weight of the bottom part and the guide part.

Depending on the weight and volume of the unit to be fastened to the body, it is advisable to form it as a back unit or to provide a unit to be fastened around the hips or in front of the abdomen.

Advantageously, the unit to be fastened to the body is provided with a support frame. Thereby, the unit to be fastened to the body can be comfortably worn by the user on the body. The support frame may be formed, for example, like the frame of a backpack, so that the unit to be fastened to the body can be comfortably carried on the back.

Advantageously, the outlet opening of the container for the liquid picked up arranged on the unit to be fastened to the body is arranged in the bottom region, wherein the outlet nozzle or the outlet tube with the closure is arranged so that the user is possible while the body to be attached unit on the body contributes to drain the absorbed liquid.

The omission of the liquid picked up while the user wears the body-to-body unit on the body has the advantage that the body-to-be-attached unit does not need to be removed with the added weight of the water taken up, which could be cumbersome. Thus, for example, formed as a back unit to be attached to the body unit must not be removed with additional weight, since the added weight added as additional water before can be easily drained again.

Advantageously, the bottom part is supported exclusively on the tool for tillage.

This has the advantage that the mobility of the bottom part is not limited by an extra support device with rollers. On an additional support device can be dispensed with due to the low weight of the bottom part and the guide part.

Advantageously, the soil cultivation device has at least one energy store and / or a power cable to an external power supply for supplying the at least one tool for tillage and / or the suction turbine.

An external, powered by a power cable power supply of the harrow has the advantage that the harrow is operated without an attached to the bottom part or the guide part energy storage, which makes it possible to keep the weight of the bottom part and the guide part very low, whereby the bottom part very manoeuvrable and easily movable by means of the guide part. In addition, the connection to an external power supply allows an unlimited operating time of the harrow.

An energy storage makes it possible to operate the harrow without a connection to an external power supply, thereby increasing the range of movement of the harrow. This allows, for example, the cleaning of staircases by means of the tillage device according to the invention.

It is possible to supply both the at least one attached to the bottom part tool, as well as the suction turbine of the suction unit by means of the same power supply. For this purpose, an energy storage can be provided on the harrow or a power cable for connection to an external power supply.

Advantageously, at least one energy store is removably attached.

Thereby, the weight of the harrow can be reduced if the harrow is connected, for example, to an external power supply. Furthermore, this makes it possible to change the energy store, so that the operating time of the driven by the device removably mounted energy storage powered tillage device can be extended.

Advantageously, at least one energy store is mounted on the bottom part and / or on the guide part.

Depending on the shape of the bottom part and the guide part, it may be advantageous to attach the energy storage on the bottom part and / or on the guide member to ensure the least possible mobility of the bottom part by means of the guide member.

Advantageously, at least one energy storage is provided on the structurally separate suction unit and / or the structurally separate suction unit is connected via a power and / or control cable to the bottom part, the guide part or the handle part.

A power supply housed in the suction unit, which supplies both the suction turbine and the at least one tool for tillage, has the advantage that its weight does not limit the mobility of the bottom part by means of the guide member.

The supply of the suction turbine by means of a mounted on the bottom part and / or guide part power supply makes it easy to keep the suction unit and their dimensions low. When trained as another ground unit, this increases the mobility of this further ground unit. In an embodiment of the suction unit as a unit to be attached to the body, the lower weight increases the wearing comfort and the smaller dimensions the handling.

If the power supply for the suction turbine is arranged on the suction unit and the power supply for the at least one tool is mounted on the bottom part or on the guide part, then for example no power cable has to be provided between suction unit and bottom part, guide part or grip part.

Advantageously, the bottom part has a loosely suspended splash guard ring, which is movable in height relative to the bottom part and surrounds the tool for tillage at least in sections.

In order to avoid splashing, a splash guard ring that extends as far as possible or all the way around the tool for tillage is advantageous. The fact that the splash guard is loosely suspended and variable in height relative to the bottom part, it is ensured that the splash guard always rests on the processing surface regardless of the movements of the bottom part and thus avoids splashing.

Advantageously, a liquid tank is provided for the liquid supply.

The advantage is that no external water supply must be connected, with a corresponding hose would restrict the range of motion of the harrow.

Advantageously, the liquid tank is attached to the guide part.

This allows an advantageous compact shape of the tillage implement. If, in addition to the liquid tank, the container for the absorbed liquid is also arranged on the guide part and / or on the bottom part, then the total weight of the bottom part and guide part remains largely constant, whereby a constant pressure on the tools carrying the bottom part can be ensured. This allows a constant quality of cleaning by the tools for tillage.

Advantageously, the liquid tank attached to the guide part is elongated along the guide part.

This has the advantage that the liquid in the liquid tank is always located as close as possible to the guide part, so that the weight of the liquid as little as possible in the guide part, even when the guide part is inclined, minimizes handling.

If, in addition to the liquid tank, the container for the liquid picked up is attached longitudinally along the guide part, then it may be possible to make these two liquid containers the same, thereby enabling a more cost-effective production.

Advantageously, the liquid tank is housed in the structurally separate suction unit.

As a result, the guide member has a lower weight, which allows the user to move the bottom part by means of the guide member with less effort.

Advantageously, the tool for tillage consists of at least two counter-rotating and substantially horizontally rotating Treibtellern with Bearbeitungsaufsätzen or at least two counter-rotating rollers with bristles.

The opposing of two symmetrically mounted around the center of the harrow Treibtellern leads in an even number of Treibtellern to a force-neutral state of the bottom part and allows easy, resistanceless handling of the bottom part by means of the guide member on the ground. The same applies to rolls.

Advantageously, the processing attachments may be brushes, plates for pads or grinding wheels.

This has the advantage that the user only needs a harrow to perform a variety of jobs, namely scrubbing, polishing and grinding, with the attachment of the processing attachments by hand should be possible without additional tools.

Advantageously, the liquid supply takes place in an area under the bottom part within the splash guard and / or centrally through the Treibteller, whereby a uniform distribution of the liquid is possible.

Advantageously, the liquid receptacle on a squeegee with two sealing lips, which extends at least over half the width, preferably over the entire width of the bottom part and around the brushes bent transversely to the machining direction and seen in the direction of movement behind the tool for tillage, wherein Preferably, the front in the direction of movement of the sealing lip is corrugated or has openings.

The squeegee with the two sealing lips allows the liquid to be absorbed directly. The farther the squeegee with the sealing lips extends around the tool for tilling, the more liquid is taken up again in the first processing operation. The corrugation or the openings of the front sealing lip allow the liquid to pass into the area between the sealing lips where it is sucked into the container for the liquid absorbed by means of the negative pressure generated by the suction unit.

Advantageously, the squeegee with the two sealing lips of the liquid intake is loose, mounted in height with respect to the bottom part movable.

The fact that the squeegee with the sealing lips are independently variable in height independent of the vertical movements of the bottom part, it can be ensured that the sealing lips always sit on the working surface, so that an efficient fluid intake is possible. If the splash guard is correspondingly loose and arranged independently of the vertical movements of the bottom part, it is for example possible to attach the suction strip with the sealing lips on the splash guard.

Advantageously, the guide member at the lower end below the middle, but above the bottom part of another joint with another transverse to the first hinge axis hinge axis about which the guide member is adjustable transversely to the machining direction such that the bottom part of a user from parallel to the working surface can be rotated about a vertical axis of the bottom part by at least ± 45 °.

This further joint forms a universal joint with the first joint and allows the user to rotate the bottom part within the working plane, even if the guide part is inclined about the first hinge axis to the vertical axis of the bottom part. This facilitates, for example, the editing of corners or niches.

Advantageously, the bottom part can be rotated by the user parallel to the working surface about the vertical axis of the bottom part by at least ± 270 °.

Thus, even when the guide member is inclined about the first hinge axis to the vertical axis of the floor member, the user can turn the working direction of the cultivator out of the state by 270 °. This allows the user to first operate the tillage implement in a direction away from the user, then rotate the floor portion through 180 ° and move the tillage implement back in a user-facing direction. Furthermore, the user, the floor part, while he moves it back to himself, even further rotate, so even with directed to the user movement of the bottom part further full mobility in the lateral direction. This mobility allows cleaning of corners, niches or protrusions, for example under stairs or tables.

Furthermore, the mobility allows cleaning both in the forward and backward direction, as well as in the lateral direction, the tillage implement can always be moved in the machine direction, which is a prerequisite for a regular recording of the liquid.

Advantageously, the liquid tank for the liquid supply and / or the container for the liquid received around the guide member is mounted above the other joint.

As a result, the slight movement of the bottom part is ensured by means of the guide member.

Advantageously, the liquid supply, the at least one tool for tillage and the suction unit of the soil cultivation device to be switched separately from each other and combined as desired.

This makes it possible to use the described harrow for a variety of jobs, such as wet scrubbing, polishing or grinding.

Furthermore, the invention relates to a hand-held harrow, comprising a bottom part with at least one tool for soil tillage and a motor for driving the at least one tool, and a bracket which surrounds the bottom part at least partially and across a variable in the machining direction first joint with a hinge axis transverse to the machining direction is connected to the bottom part, and has a mounted on the bracket guide member having a handle portion. The guide member has at the lower end, below the middle, but above the bottom part, another joint with a transverse to the first hinge axis further hinge axis about which the guide member is adjustable transversely to the machining direction such that the bottom part of a user from parallel to Machining surface can be rotated about a vertical axis of the bottom part by at least ± 45 °.

The further joint forms with the first joint a universal joint and allows a user to rotate the bottom part within the working plane, even if the guide part is inclined about the first hinge axis to the vertical axis of the bottom part, allowing a large mobility of the bottom part. Thus, the machining direction of the bottom part is pivotable parallel to the ground even when tilted guide member and allows easy editing of corners or niches or under projections.

In principle, any desired rotation of the bottom part about its vertical axis is possible by means of such a universal joint, even with an inclined guide part.

Advantageously, the bottom part can be rotated by the user parallel to the working surface about the vertical axis of the bottom part by at least ± 270 °.

This allows the user to first operate the tillage implement in a direction away from the user, then rotate the floor portion through 180 ° and move the tillage implement back in a direction toward the user. Furthermore, the user, the floor part, while he moves it back to himself, even further rotate, so even with directed to the user movement of the bottom part further full mobility in the lateral direction. This mobility allows easy cleaning of corners, niches or protrusions, for example under stairs or tables. Furthermore, the mobility allows the cleaning in both the forward and backward direction, as well as in the lateral direction, even if the guide member is inclined about the first hinge axis to the vertical axis of the bottom part, the tillage implement can always be moved in the machine direction, which is a prerequisite represents a regular recording of the liquid.

Advantageously, the bottom part is supported exclusively on the tool for tillage. As a result, the mobility of the bottom part is not limited by a support device.

Advantageously, the tool for tillage consists of at least two counter-rotating and substantially horizontally rotating Treibtellern with Bearbeitungsaufsätzen or at least two counter-rotating rollers with bristles.

The opposite of each two symmetrically mounted around the center of the harrow Treibtellern leads in an even number of Treibtellern to a force-neutral state of the bottom part and allows easy, resistance-free handling of the bottom part by means of the guide member on the ground. The same applies to rolls.

Advantageously, the processing attachments may be brushes, plates for pads or grinding wheels.

This allows the tillage implement to be used for a variety of jobs such as polishing, scrubbing or sanding.

Advantageously, the tillage device for supplying the tool at least one energy storage and / or a power cable to an external power supply.

By connecting the harrow to an external power supply by means of a power cable an unlimited service life is possible. Furthermore, thereby the weight of the bottom part can be kept low, which allows the user to easily move the bottom part by means of the guide member and lead. By attached to the harrow energy storage device can be dispensed with the power cable to an external power supply, creating a higher range of motion of the harrow is enabled. This makes it possible, for example, to use the tillage implement for cleaning staircases.

Advantageously, the at least one energy store is mounted on the bottom part and / or on the guide part.

Advantageously, the at least one energy store is detachably mounted.

As a result, the energy storage can be changed and a longer operating time allows. Furthermore, this makes it possible to remove the energy storage and thus reduce the weight of the bottom part and / or the guide part, when the harrow is connected, for example, to an external power supply, so that the bottom part can be easily moved and guided by means of the guide member.

Advantageously, the bottom part has a loosely suspended, in height relative to the bottom part movable splash guard, which at least partially surrounds the tool for tillage.

Due to the loose, movable in height arranging the splash guard can always sit flat on the processing surface regardless of the movements of the bottom part and thus avoid splashing.

Advantageously, the bottom part has a liquid supply. This allows the tillage implement to be used for wet scrubbing.

Advantageously, the liquid supply takes place in an area below the bottom part within the splash guard and / or centrally through the drive plate and the processing attachments. This ensures a uniform surface distribution of the liquid. Advantageously, a liquid tank is provided for the liquid supply. As a result, the tillage implement does not need to be connected to an external water supply, which would limit the travel radius of the tillage implement.

Advantageously, the liquid tank is attached to the bottom part or to the guide part above the further joint. As a result, the mobility of the bottom part is restricted as little as possible by means of the guide member.

Advantageously, the liquid tank attached to the guide part is elongated along the guide part. As a result, the liquid is as close as possible to the guide part, so that the weight of the liquid makes the movement of the guide part as little as possible.

Advantageously, the harrow has a liquid intake and a structurally separate suction unit, which contains at least one suction turbine for receiving the liquid.

Due to the structural separation of the suction unit, the weight of the bottom part and the guide part can be kept low, so that the bottom part can be easily moved and guided by means of guide member.

Advantageously, a container for the liquid absorbed at the bottom part and / or on the guide member is arranged and connected via a hose with the structurally separate suction unit.

The structural separation of the container for the liquid absorbed by the suction turbine can be ensured in a simple manner that the suction turbine does not come into contact with liquid. The provision of the container for the liquid absorbed at the bottom part has the further advantage that the path for the water to be absorbed from the bottom into the container for the liquid absorbed is as short as possible, thereby increasing the effective suction power of the suction turbine.

Advantageously, the container for the absorbed liquid is attached to the guide part above the further joint and formed in an elongated manner along the guide part.

As a result, the mobility of the bottom part made possible by the two joints is not restricted and the mobility of the guide part is as little as possible burdened by the weight of the liquid absorbed.

Advantageously, the structurally separate suction unit has a container for the absorbed liquid. As a result, the bottom part or the guide part is not complicated by the weight of the liquid absorbed, which allows easier to guide. Advantageously, the suction unit is designed as a further ground unit. Since a ground unit does not have to be particularly small in order to easily pull it on wheels, for example, and to not particularly affect the user's work, another ground unit which can be pulled behind the harrow, for example by means of a traction device, is simple and inexpensive to implement ,

Advantageously, the suction unit is designed as a unit to be fastened to the user's body. Such a body-mounting unit restricts the user little in his freedom of movement while allowing due to the lower weight of the bottom part and the guide member easy mobility of the bottom part by means of the guide member. Depending on the weight and dimensions of the unit to be attached to the body, it can be designed so that it can be worn either on the back, around the hips or in front of the abdomen.

Advantageously, the unit to be fastened to the body is provided with a support frame. As a result, the weight of the suction unit can be comfortably carried by the user on the body. For example, a backpack-like carrying frame may be provided so that the suction unit can be carried on the back.

Advantageously, the container for the absorbed liquid is arranged in the unit to be fastened to the body and has an outlet opening and an outlet connection or an outlet tube with a closure adjoining the outlet opening.

As a result, the bottom part and the guide part are not complicated by the weight of the liquid absorbed. The closure of the outlet nozzle or the outlet tube should be as simple as possible, so that the contamination contained in the liquid absorbed does not affect the sealing ability of the closure. Furthermore, a large lid can be provided which allows emptying and also easy cleaning of the container for the liquid absorbed.

Advantageously, the outlet opening is arranged in the bottom area, wherein the outlet nozzle or the outlet tube is arranged with the closure so that it is possible for the user, while he carries the body-to-be-attached unit on the body to drain the absorbed liquid.

If the suction unit is designed as a unit to be fastened to the body, the discharge of the absorbed liquid during the wearing of the unit to be attached to the body on the body has the advantage that the subsequent settling is not complicated by the additional weight of the liquid absorbed.

Advantageously, the fluid intake has a suction strip with two sealing lips, which are bent at least over half the width, preferably over the entire width of the bottom part and around the tool for tillage, transversely to the machining direction extends and seen in the direction of movement behind the tool for tillage, preferably wherein the front in the direction of movement sealing lip is corrugated or has openings.

The squeegee with the sealing lips allows the direct absorption of the liquid. The farther the squeegee with the sealing lips extends around the tool for tilling, the more liquid is absorbed in the first processing operation. The corrugation or the openings of the front sealing lip allow the liquid to pass into the region of the suction strip between the sealing lips and be sucked out there.

Advantageously, the squeegee with the sealing lips of the liquid intake is loose, mounted in height with respect to the bottom part movable.

The fact that the suction strip is attached to the sealing lips regardless of the vertical movements of the bottom part, it can be ensured that the sealing lips always sit on the working surface, so that an efficient fluid absorption is possible. If the splash guard is correspondingly loose and arranged independently of the vertical movements of the bottom part, it is for example possible to attach the suction strip with the sealing lips on the splash guard.

Advantageously, the liquid tank is attached to the structurally separate suction unit. As a result, the weight of the bottom part and / or the guide part can be kept low, which ensures easier mobility of these parts.

Advantageously, the liquid supply, the tools for tillage and the structurally separated suction unit of the soil cultivation device to be switched separately and combined as desired. This makes it possible to use the described harrow for a variety of jobs, such as wet scrubbing, polishing or grinding.

Advantageously, the structurally separate suction unit has an energy store and a switch for supplying the suction turbine and / or the tool and / or is connected via a power and control cable to the bottom part, the guide part or the handle part.

Brief description of the drawing

Fig. 1

ein handgeführtes Bodenbearbeitungsgerät mit einer als am Körper zu befestigenden Einheit ausgebildeten Saugeinheit, die

Fig. 2

eine Detailansicht eines Bodenteils und einer am Körper zu befestigenden Einheit des Bodenbearbeitungsgeräts aus Fig. 1, die

Fig. 3

einen Querschnitt des Bodenteils mit Führungsteil und Griffteil des Bodenbearbeitungsgeräts aus Fig. 1, die

Fig. 4

verschiedene Ausführungsvarianten eines Werkzeugs für die Bodenbearbeitung des Bodenbearbeitungsgeräts aus Fig. 1, die

Fig. 5A, B

eine Veranschaulichung der Beweglichkeit des Bodenteils des Bodenbearbeitungsgeräts aus Fig. 4, die

Fig. 6

ein handgeführtes Bodenbearbeitungsgerät mit einer als weitere Bodeneinheit ausgebildeten Saugeinheit.

An embodiment of the invention is shown in the drawing. It shows the

Fig. 1

a hand-held tillage implement with a designed as a body to be fastened unit suction, the

Fig. 2

a detailed view of a bottom part and a body to be fastened unit of the harrow from Fig. 1 , the

Fig. 3

a cross-section of the bottom part with guide part and handle part of the harrow from Fig. 1 , the

Fig. 4

various embodiments of a tool for tillage the tillage machine Fig. 1 , the

Fig. 5A, B

an illustration of the mobility of the bottom part of the harrow from Fig. 4 , the

Fig. 6

a hand-held tillage implement with a suction unit designed as a further ground unit.

embodiment

In the Fig. 1 an inventive tillage implement is shown. A bottom part 1 can be guided by a user P via a guide part 2 and a handle part 3, wherein the guide part 2 is connected to the bottom part 1 via two joints, which together form a universal joint. A first joint 4 consists of a bracket 5 and a in Fig. 3 illustrated, attached to the bottom part 1 axis 30, wherein a hinge axis G1, the in Fig. 3 is shown, along the axis 30 parallel to a processing surface B and transverse to the machining direction 6 and the bracket 5 can be moved according to the direction indicated by the arrow 7 about the axis G1. A second hinge 8 connects the guide part 2 with the bracket 5, wherein a hinge axis G2 extends transversely to the hinge axis G1 and the guide member can be moved about the axis G2 according to the direction indicated by the arrow 9. This allows the user P to turn the bottom part 1 parallel to the working surface B about its vertical axis A1 even when the guide part 2 is inclined. Thus, the user P can rotate the machining direction 6 parallel to the machining surface B. For example, the user P may first move the bottom part away from him and then after turning the bottom part through 180 °, the machining direction 6 correspondingly first moving away from him and then towards him.

The soil cultivation device according to the invention has a liquid tank 10 for the liquid supply, which may be mounted, for example, above the second joint 8 on the guide part 2 and is connected via a liquid supply 11 to the bottom part 1.

In the illustrated embodiment, it is advantageous to design the liquid tank 10 so that it extends at least partially around the guide member 2 and its dimensions in the direction transverse to the guide member 2 are minimized, while the dimensions along the guide member 2 may be larger. As a result, the movement of the guide part 2 is made as little as possible by the liquid also moving in the liquid tank 10.

The harrow has a splash guard 12, which is arranged on the outside of the bottom part 1 and extends as far as possible to the bottom part 1. The splash guard 12 has bristles or lips toward the work surface B and is arranged to be movable in height above the work surface B opposite to the floor part 1, so that it always sits on the work surface B with its bristles or lips.

Furthermore, the bottom part 1 on its underside a liquid receptacle 13 which extends transversely to the machining direction 6 as far as possible over the width of the bottom part 1 and arranged in the direction of movement 6 behind the bottom part 1 and secured to the splash guard 12, without the height-free mobility of the splash guard 12 with respect to the bottom part 1 restrict.

The structurally separate suction unit is formed in the illustrated embodiment as one of a user P to be fastened to the body unit 15. This unit 15 to be fastened to the body is furthermore designed as a back unit and connected to the fluid intake 13 via a hose 14. The back unit 15 has a container 16 for the liquid absorbed by the bottom surface B and a suction turbine 17 which can be driven by a motor 18 which is also arranged in the back unit 15. For power supply, the motor 18 is connected via a power and possibly also via a control cable 19 directly to the bottom part 1, wherein a connection may be provided on the back part 15 or on the bottom part 1, so that this connection between the back part 15 and bottom part 1 are released can.

In a further embodiment variant, the power and control cable 19 can also be guided via the grip part 3 and / or the guide part to the bottom part 1, or a connection can be provided on the grip part 3 or on the guide part 2 to which the power and control cable 19 can be connected.

It may also be advantageous to arrange the container 16 for the liquid absorbed by the bottom surface B, for example, on the guide part 2 and to connect via a hose to the liquid receptacle 13 and the suction turbine 17, since such a very short suction path is possible, thereby the effective suction power of the suction turbine 17 is improved. In this case, it is advantageous to shape the container 16 for the liquid absorbed along the guide part 2 so that the liquid picked up is always as close as possible to the guide part 2 and thus the mobility of the guide part 2 is not unnecessarily burdened by the weight of the liquid picked up ,

Characterized in that both the liquid tank for the liquid supply and the container 16 for the liquid absorbed at the guide part 2 and / or arranged at the bottom part 1, the total weight of the bottom unit 1 and guide part 2 during soil cultivation remains substantially constant. This makes it possible to keep constant the pressure on the at least one tool 31 for tillage and thus to guarantee a constant and reliable operation.

Furthermore, it is possible to form the container for the liquid taken in and liquid tank for the liquid supply the same, so to choose only one mold for both containers, whereby the production cost of the harrow can be reduced.

Furthermore, the provision of the container 16 for the liquid absorbed at the bottom part 1 and / or on the guide part 2 has the advantage that when loosening the hose which connects the container 16 for the liquid absorbed with the suction turbine 17, no residual liquid left in the hose can leak because the liquid remains in the lower-lying container 16 for the absorbed liquid.

The back unit 15 has a support frame 20, whereby it can be comfortably worn by the user P on the back.

For other embodiments of the body-mounting unit 15 may be provided according to the type of support adapted carrying racks and also the shape of the body to be fastened unit is adapted to the type of wear. For example, a back unit may be elongated flat and provided with a backpack-like support frame. If the unit to be fastened to the body is to be worn around the waist, it must be correspondingly smaller and provided with a hip belt. For example, a unit to be fastened in front of the abdomen can not be formed as long as is possible with a back unit.

In the Fig. 2 is the back unit off Fig. 1 shown in cross section. The container 16 for the absorbed liquid has an outlet opening 21 in the bottom area, to which an outlet hose 22 or also an outlet pipe with a closure 23 is attached. The outlet hose 22 and the closure 23 are arranged so that the shut-off device 23 can be operated by the user P and the liquid picked up can be discharged from the liquid-receiving container 16 via the drain hose 22, while the user P carries the back unit 15 on his back , In order to increase the freedom of movement of the user P when discharging the absorbed liquid, a connection with a coupling may be provided for the hose 14, so that this connection of the back unit 15 with the bottom part 1 can be released. Alternatively, a nozzle on the bottom part 1 may be provided. The hose or nozzle on the bottom part can also be designed as a siphon, which prevents residual water from leaking.

In this embodiment, the back unit 15 has a power supply 24 for the motor 18 and a switch 25 for switching the suction turbine 17 on and off.

Furthermore, in the Fig. 2 the bottom part 1 of the inventive tillage machine shown from below without a processing attachment. By a motor 26, two drive plates 27 are driven in opposite directions and substantially horizontally. At the splash guard 12, which extends in this embodiment, annular around the entire bottom part 1, is the liquid intake 13 so attached that the free movement of the splash guard 12 is not affected in its height above the working surface relative to the bottom part 1. The liquid receptacle 13 has a suction bar 49 with two spaced apart in the machining direction 6 sealing lips 28, 29, wherein the front in the machining direction 6 lip 28 is grooved as possible or has openings through which when moving the bottom part 1 in the machining direction 6, the liquid to be absorbed in the Area x between the two sealing lips 28, 29 can pass. This region x of the suction strip 49 between the sealing lips 28, 29 is connected via the hose 14 with the suction unit designed as a back unit 15, so that liquid can be absorbed.

The Fig. 3 shows a cross section of the bottom part 1 with guide part 2 and handle part 3 of the harrow Fig. 1 , Shown again is the hinge 4, which consists of the bracket 5 and the axis 30 which is fixed to the bottom part 1, wherein the hinge 4 can be moved about the hinge axis G1 according to the direction indicated by the arrow 7.

Furthermore, the bottom part 1, a tool 31 for tillage, which comprises the Treibteller 27 and processing attachments 32 such as brushes shown, wherein the bottom part 1 is supported exclusively on the tool 31. The arranged on the Treibtellern 27 processing attachments 32 are driven by the motor 26, which is powered by an energy storage 33. This energy storage 33 is attached as removable as possible on the bottom part 1 and can be charged, for example via a power cable. If possible, the motor 26 also has a power cable 35, which makes it possible to dispense with the energy storage 33 and to connect the motor 26 to an external power supply.

The liquid supply 11 of the liquid from the liquid tank 10 takes place centrally through the drive plates 27.

The splash guard 12 may be loosely connected to at least one reaching over the bottom part 1 bracket 36 with the bottom part 1 so that it is free to move during processing in height, ie in the direction of the arrow 37, but when lifting the bottom part. 1 remains connected to the bottom part 1 via the at least one bracket 36. As a result, the user P can raise and offset the bottom part 1 and the splash guard 12 at the same time and does not have to additionally move the splash guard 12.

The energy storage for supplying the suction turbine driving motor can also be arranged on the guide part, wherein the energy storage is advantageously mounted below the tank 19, but above the joint 8.

In Fig. 4 further variants of the tool 31 for soil cultivation are shown. The Fig. 4A shows a Treibteller 27 with a processing attachment 32 in the form of a plate 48 for pads 38, and in Fig. 4B a drive plate 27 is shown with a grinding wheel 39 as a processing attachment. The Fig. 4C shows a bottom part 1 of a tillage machine according to the invention, having on its underside rollers 40 with bristles 41 as a tool 32 for tillage.

In Fig. 5A , B is shown how the bottom part 1 of the tillage device according to the invention with an inclined guide part 2 by means of the joints 4 and 8 about the vertical axis A1 of the bottom part 1, which is substantially perpendicular to the processing surface B, can be rotated. By rotating the handle part 3 by 90 ° about a longitudinal axis A2 of the guide part 2, the bottom part is also rotated by 90 ° about the vertical axis A1, wherein the bracket 5 from an inclined against the first processing direction 6 starting position about the axis G1 in a position is brought parallel to the axis A1 and the guide member 2 is moved about the further hinge axis G2 from an initial orientation parallel to a longitudinal axis A3 of the bracket 5 in an orientation oblique to the longitudinal axis A3 of the bracket 5. From this in Fig. 5B The base part 1 can also be turned by a further 90 ° by turning the grip part 3 by a further 90 °, so that the machining direction 6, which initially points away in the direction of the user P, is now directed towards the user P, in the direction indicated by arrow 6 '.

Fig. 6 shows an inventive soil cultivation device, as shown in Fig. 1 is shown, with the difference that the structurally separate suction unit is designed as a further ground unit 42. The bottom unit 42 has a container 43 for the liquid picked up by the bottom surface B and a suction turbine 44 which can be driven by a motor 45, which is also arranged in the bottom unit 42. For power supply, the motor 42 is connected via a power and optionally also via a control cable 46 directly to the bottom part 1, wherein a connection to the bottom unit 42, may be provided on the bottom part 1, on the guide part 2 or on the handle part 3, so that this Connection between the bottom unit 42 and the bottom part 1 can be solved.

In a further embodiment, the power and / or control cable 46 can also be guided over the handle part 3 and / or the guide part to the bottom part 1, or it can be provided on the grip part 3 or on the guide part 2, a connection to the power and / or control cable 46 can be connected.

Alternatively, the ground unit 42 may also include a power cable that allows the motor 45 to be connected to an external power supply. The ground unit 42 may also have its own energy storage 47 for the power supply of the motor 45 as a further alternative.

LIST OF REFERENCE NUMBERS

1

the bottom part

2

guide part

3

handle part

4

first joint

5

hanger

6

machining direction

6 '

Machining direction after turning the tillage implement

7

Direction of movement of the first joint 4

8th

second joint

9

Direction of movement of the second joint 8

10

liquid tank

11

liquid feed

12

splash guard

13

fluid intake

14

tube

15

body to be attached to the body

16

Container for the absorbed liquid

17

suction turbine

18

Motor for driving the suction turbine 17

19

Power and / or control cables

20

carrying frame

21

outlet

22

outlet hose

23

shutter

24

energy storage

25

switch

26

Motor for driving the tool for tillage

27

Drive board

28

Sealing lip of the squeegee 49, grooved or with openings

29

Sealing lip of the squeegee 49

30

axis

31

Tool for tillage

32

processing essay

33

energy storage

35

power cables

36

hanger

37

Direction of movement of the splash guard 12

38

pad

39

grinding wheels

40

roller

41

bristles

42

another ground unit

43

Container for the absorbed liquid

44

suction turbine

45

engine

46

Power and / or control cables

47

energy storage

48

Plate for pads

49

squeegee

A1

Vertical axis of the bottom part 1

A2

Longitudinal axis of the guide part 2

A3

Longitudinal axis of the bracket 5

B

working surface

G1

Joint axis of the first joint 4

G2

Joint axis of the second joint 8

P

user

x

Area between the sealing lips 28 and 29th

Claims (19)

A handheld tillage implement comprising a bottom member (1) having at least one tilling tool (31) and a motor (26) for driving the at least one tool (31) and comprising a guide member (2) having a handle portion (3) Guide part (2) via a in the machine direction (6) adjustable first joint (4) with a hinge axis (G1) transversely to the machining direction (6) with the bottom part (1) is connected, characterized in that the bottom part (1) a liquid supply ( 11) and a liquid receptacle (13), that a suction unit structurally separate from the bottom part is provided, which contains at least one suction turbine (17) for receiving liquid, and in that the guide part (2) at the lower end below the center, but above the bottom part (1) has a further joint (8) with a transverse to the first hinge axis (G1) extending further hinge axis (G2) about which the guide member (2) transversely to the Bearb It can be adjusted so that the bottom part (1) can be rotated by at least ± 45 ° about a vertical axis (A1) of the bottom part (1) by a user (P) parallel to the working surface (B). Soil cultivation device according to claim 1, characterized in that the bottom part of the user (P) by means of the guide part (2) parallel to the working surface (B) about the vertical axis (A1) by at least ± 270 ° can be rotated. Soil cultivation apparatus according to claim 1 or 2, characterized in that a liquid tank (10) for the liquid supply (11) and / or a container (16) for the liquid absorbed around the guide member (2) around above the further joint (8) is mounted , Soil cultivation device according to one of claims 1 to 3, characterized in that the liquid supply (11), the tools (31) for tillage and the bottom part (1) structurally separate trained suction unit of the harrow separately to switch and arbitrarily combined. Soil cultivation device according to claim 3, characterized in that the container (16) for the liquid absorbed and / or attached to the guide part (2) liquid tank (10) is formed along the elongated guide part (2). Soil cultivation device according to one of claims 1 to 5, characterized in that the bottom part (1) is supported exclusively on the tool (31) for tillage. Soil cultivation device according to one of claims 1 to 6, characterized in that the soil cultivation device at least one energy store (24, 33) and / or a power cable (35) to an external power supply for supplying the at least a tool (31) for tillage and / or the suction turbine (17). Soil cultivation device according to claim 7, characterized in that at least one energy store (24, 33) is removably mounted. Soil cultivation device according to claim 7 or 8, characterized in that at least one energy store (33) on the bottom part (1) and / or on the guide part (2) is mounted. Soil cultivation device according to one of claims 7 to 9, characterized in that the bottom part (1) structurally separate suction unit via a power and / or control cable (19) with the bottom part (1) or the handle part (3) is connected. Soil cultivation device according to one of claims 1 to 10, characterized in that the bottom part (1) has a loosely suspended, in height relative to the bottom part (1) movable splash guard (12) which surrounds the tool (31) for tillage at least in sections , Soil cultivation device according to one of claims 1 to 11, characterized in that a liquid tank (10) for the liquid supply (11) is provided. Soil cultivation device according to claim 12, characterized in that the liquid tank (10) is attached to the guide part (2). Soil cultivation device according to claim 13, characterized in that on the guide part (2) attached to the liquid tank (10) along the guide part (2) is formed elongated. Soil cultivation device according to one of claims 1 to 14, characterized in that the tool (31) for tillage from at least two counter-rotating and substantially horizontally rotating Treibtellern (27) with processing attachments (32), or from at least two counter-rotating rollers ( 40) with bristles (41). Soil cultivation device according to claim 15, characterized in that the processing attachments (32) brushes, plates for pads (38) or grinding wheels (39) may be. Soil cultivation device according to one of claims 15 or 16, characterized in that the liquid supply (11) in an area under the bottom part (1) within the splash guard (12) and / or centrally through the Treibteller (27) passes through. Soil cultivation device according to one of claims 1 to 17, characterized in that the liquid receptacle (13) has a suction strip (49) with two sealing lips (28, 29) which extends at least over half the width, preferably over the entire width of the bottom part (1) and around the tool (31) for tilling around transversely to the machining direction (6) and seen in the direction of movement (6) behind the tool ( 31) is arranged for soil tillage, wherein preferably in the direction of movement (6) front sealing lip (28) is corrugated or has openings. Soil cultivation device according to claim 18, characterized in that the suction strip (49) with the two sealing lips (28, 29) of the liquid receptacle (13) loosely in height relative to the bottom part (1) is arranged to be movable.

Images