DE102020122822A1 - Self-propelled sweeper and method of manufacturing a sweeper - Google Patents

Abstract

A self-propelled sweeper is provided, comprising a chassis (12), a passenger area (32) which is arranged on the chassis (12), at least one sweeping roller (52) and a dirt collecting container device (68) which has a holding device (70) is arranged to be movable relative to the chassis (12), the dirt collection container device (68) having at least a first position (124) and a second position (140) relative to the chassis (12), and wherein when the sweeper is in operation in the first position (124 ) sweepings are fed to the dirt collection container device (68) by the at least one brush roller (52) and in the second position (140) the dirt collection container device (68) can be emptied up, with the holding device (70) and/or the dirt collection container device (68) on Has window (176), which in the second position (140) of the dirt collecting device (68) an operator (38), which properly positioned at the passenger area (32) provides a see-through field of view (178).

Description

The invention relates to a self-propelled sweeper, comprising a chassis, a passenger area, which is arranged on the chassis, at least one roller brush and a dirt collection container device, which is arranged movably to the chassis via a holding device, the dirt collection container device having at least a first position and a second position to the chassis, and wherein during operation of the sweeper in the first position, sweepings are fed through the at least one brush roller to the dirt collection container device and in the second position it is possible for the dirt collection container device to be emptied.

The invention also relates to a method for manufacturing a sweeping machine.

From the DE 10 2015 105 587 A1 a floor cleaning machine is known, comprising a chassis, a squeegee device which is arranged on the chassis, a dirt receptacle, and a holding device which holds the dirt receptacle movably relative to the chassis, the dirt receptacle having a dirt receptacle position via the holding device and has a dirt release position, and in the dirt release position the dirt receptacle is positioned at a vertical distance transverse to a longitudinal axis of the chassis at a distance parallel to the longitudinal axis of the chassis relative to the dirt pickup position.

the U.S. 3,744,653 discloses a mobile lever suction apparatus.

the U.S. 5,193,382 discloses a mechanism for lifting and pivoting a container for emptying.

the WO 2006/121783 A1 discloses a scrubbing machine.

the FR 2 255 841 reveals an agricultural machine.

The invention is based on the object of providing a sweeping machine of the type mentioned at the outset, which can be operated in a simple and safe manner.

In the case of the sweeping machine mentioned at the outset, this object is achieved according to the invention in that the holding device and/or the dirt collection container device has a window which, in the second position of the dirt collection container device, provides an operator who is correctly positioned in the passenger area with a see-through field of vision.

In principle, the field of vision can be restricted for an operator in the second position of the dirt collection container device. This makes shunting for high emptying, for example, more difficult. For example, for emptying into a container, the dirt collection container device must be brought into the second position and only then can the container be approached.

According to the invention, a window is provided which provides the operator, who is positioned in the passenger area, with a see-through field of vision. This makes maneuvering easier and, in particular, it is also possible to drive up to a container for elevated emptying without outside help and without cameras and the like having to be provided.

In principle, the high emptying can also be observed through the window.

The second position can be a single position of the dirt collection container device for high emptying, or several second positions can be provided, in each of which high emptying is possible.

It is particularly advantageous if the chassis has a first end and a second end, with the dirt collection container device being arranged in the area of the second end, and if the see-through field of vision is arranged and designed in such a way that in the second position of the dirt collection container device there is a view through through the window in a direction from the first end to the second end. This results in improved maneuvering options. Furthermore, an operator can observe the high emptying. The arrangement of the dirt collection container device in the area of the second end means that, particularly in the first position of the dirt collection container device, the dirt collection container device is arranged between the passenger area and the second end.

• - auf den Rangierbereich;
• - auf einen Bodenbereich vor dem zweiten Ende;
• - auf eine Projektion eines Verschlusses der Schmutzsammelbehältereinrichtung auf einen Boden, auf dem die Kehrmaschine aufsteht;
• - auf einen öffenbaren Verschluss der Schmutzsammelbehältereinrichtung.

Furthermore, it is favorable if the chassis has a first end and a second end, with the dirt collection container device being arranged in the area of the second end, and that the sweeper is assigned a maneuvering area which lies in front of the second end, with the second end between the Maneuvering area and the passenger area is positioned, and where a Operator properly positioned at the passenger area through the window has a see-through field of view of at least one of the following:

• - on the shunting area;
• - on a floor area in front of the second end;
• - On a projection of a closure of the dirt collection container device on a floor on which the sweeper stands;
• - On an openable closure of the dirt collection container device.

As a result, for example, when the dirt collection container device is in the second position, it can maneuver precisely and approach an emptying container. In particular, he is then not dependent on outside help. Furthermore, if an operator has a clear field of view of the closure, he can position it specifically on a container, for example, in order to carry out an optimized emptying process.

• - das Fenster ist begrenzt durch Streben der Halteeinrichtung;
• - das Fenster ist begrenzt durch die Schmutzsammelbehältereinrichtung;
• - das Fenster ist begrenzt durch einen Korpus, welcher an dem Fahrgestell angeordnet ist;
• - eine höchste Stelle des Korpus ragt nicht über einen Sitz hinaus, welcher am Fahrgastbereich angeordnet ist;
• - das Fenster weist einen materialfreien Bereich auf;
• - das Fenster hat mindestens näherungsweise eine quadratische oder rechteckförmige Gestalt;
• - das Fenster hat eine Breite von mindestens 50 cm und beispielsweise eine Breite in der Größenordnung von 80 cm;
• - das Fenster hat eine Höhe von mindestens 40 cm und beispielsweise eine Höhe in einer Größenordnung von 60 cm;
• - das Fenster weist einen Bereich auf, welcher in der zweiten Stellung der Schmutzsammelbehältereinrichtung auf der gleichen Höhe über einem Boden, auf dem die Kehrmaschine aufsteht, liegt wie ein Verschluss der Schmutzsammelbehältereinrichtung.

In a structurally simple embodiment, at least one of the following is provided:

• - The window is limited by struts of the holding device;
• - the window is delimited by the dirt collection container device;
• - the window is delimited by a body which is arranged on the chassis;
• - A highest point of the body does not protrude beyond a seat, which is arranged in the passenger area;
• - the window has a material-free area;
• - the window has at least approximately a square or rectangular shape;
• - the window has a width of at least 50 cm and for example a width of the order of 80 cm;
• - the window has a height of at least 40 cm and for example a height of the order of 60 cm;
• - the window has an area which, in the second position of the dirt collecting container device, is at the same height above a floor on which the sweeper stands, as a closure of the dirt collecting container device.

In this way, a see-through field of vision can be easily implemented on the sweeper. Because the window is delimited by the dirt collection container device, an operator can also observe an emptying process, for example. The formation of the window as a material-free area results in less construction effort. A sufficient see-through field of view can be provided by a sufficient size, in particular with a width of at least 50 cm and a height of at least 40 cm. The fact that the window is at least partially at the same height as the closure results in optimized positioning and an emptying process can be observed.

• - eine Schwenkachse der Halteeinrichtung ist parallel zu einer Radachse;
• - die Schwenkachse der Halteeinrichtung ist parallel zu einer Rotationsachse der mindestens einen Kehrwalze;
• - die Schwenkachse der Halteeinrichtung ist quer und insbesondere senkrecht zu einer Längsachse des Fahrgestells;
• - in der zweiten Stellung der Schmutzsammelbehältereinrichtung ist diese in einer Höhenrichtung des Fahrgestells beabstandet zu der ersten Stellung, und die Schwenkachse der Halteeinrichtung ist quer und insbesondere senkrecht zu der Höhenrichtung orientiert;
• - einem Antrieb zur Positionierung der Schmutzsammelbehältereinrichtung.

In a structurally simple embodiment, the holding device is pivotable to the chassis, in particular with at least one of the following:

• - A pivot axis of the holding device is parallel to a wheel axis;
• - The pivot axis of the holding device is parallel to an axis of rotation of the at least one brush roller;
• - The pivot axis of the holding device is transverse and in particular perpendicular to a longitudinal axis of the chassis;
• - In the second position of the dirt collecting container device, this is spaced apart from the first position in a vertical direction of the chassis, and the pivot axis of the holding device is oriented transversely and in particular perpendicularly to the vertical direction;
• - A drive for positioning the dirt collection container device.

This allows the second position to be reached in a simple manner, with the drive enabling a transition between the first position and the second position and the second position and the first position in a simple manner. In principle, the dirt collection container device can be arranged pivotably on the holding device in order to obtain the same spatial orientation for the dirt collection container device, in particular in the first position and the second position. In the case of a sweeper with “dry” debris, this is not absolutely necessary, and in an embodiment according to the invention it is provided that the dirt collection container device is arranged fixed (not pivotable) on the holding device.

It is favorable if, in the first position, the dirt collection container device is arranged in such a way that debris is conveyed by the brush roller directly into the dirt collection container device and in particular that there is a throw-over arrangement between the at least one sweeping roller and the dirt collection container device and in particular works according to an overhead sweeping principle. As a result, the sweeper can be designed in a structurally simple and compact manner. Transport routes for debris on the sweeper are minimized.

For the same reason, it is favorable if a receptacle is arranged on the chassis, which receptacle accommodates at least a partial area of the dirt collection container device in the first position, and in particular if the receptacle is designed as a slide-in receptacle. In this way, in the first position of the dirt-collecting container device, sweepings can be coupled into the dirt-collecting container device in a simple manner.

It is favorable if a suction unit device for generating a suction flow and a filter holder with a filter device are provided. The coupling of sweepings into the dirt collection container device can be assisted via the suction flow. In particular, dust impact on the sweeper and the area surrounding the sweeper is minimized during a sweeping operation. The filter holder with the filter device can be used to prevent the suction unit device from being exposed to dust. In particular, the filter device has a clean side, which faces the suction unit device, and has a dirty side, which faces the dirt collection container device.

It is favorable in terms of construction if the suction flow impinges on an interior space of the dirt collecting container device. In this way, the coupling of sweepings from the at least one brush roller into the dirt collection container device can be assisted and the impact of dust on the sweeping machine and the environment can be minimized during a sweeping process.

It is favorable here if the dirt collection container device has at least one connection for the suction flow, which is fluidly connected to the suction unit device, with the at least one connection being at a distance from an opening, in particular in a vertical direction (relative to the direction of gravity), through which sweepings are discharged into the Dirt collection device is coupled. It is advantageous if there is a substantially fluid-tight connection between an interior space of the dirt collection container device and the suction unit device in the first position of the dirt collection container device in order to avoid leakage currents. When transferring from the first position to the second position, this is no longer necessary since, in particular, suction operation is no longer necessary there. Arranging the at least one connection at a distance from the opening makes it possible to prevent debris from falling out of the at least one connection when moving into the second position.

It is advantageous if the filter holder is held firmly on the chassis in relation to an emptying process in which the dirt collection container device is brought from the first position into the second position. As a result, the window can be provided and, in particular, the filter holder does not block the see-through field of view.

In a user-friendly embodiment, the filter holder can be moved and, in particular, pivoted relative to the chassis for a maintenance operation. No movement of the filter holder to the chassis is provided for a sweeping operation and an emptying operation. If the filter holder can be moved during a maintenance process and, in particular, can be pivoted, easier access to components of the sweeping machine, such as a travel drive or a suction unit device, results.

• - eine Schwenkachse für die Schwenkbarkeit des Filterhalters zu dem Fahrgestell ist parallel oder koaxial zu einer Schwenkachse der Halteeinrichtung;
• - der Filterhalter ist bezogen auf einen Boden, auf dem die Kehrmaschine aufsteht, nach oben weg schwenkbar;
• - der Filterhalter ist mit der Halteeinrichtung und/oder der Schmutzsammelbehältereinrichtung derart verbindbar, dass eine Schwenkbewegung des Filterhalters durch eine Schwenkbewegung der Halteeinrichtung angetrieben ist;
• - der Filterhalter weist eine Schwenkposition auf, in welcher von einer Hinterseite oder Vorderseite der Kehrmaschine her ein Zugang auf einen Innenraum der Kehrmaschine ermöglicht ist.

In particular, at least one of the following is provided:

• - A pivot axis for the pivotability of the filter holder to the chassis is parallel or coaxial to a pivot axis of the holding device;
• - The filter holder is related to a floor on which the sweeper stands up, pivoted upwards away;
• - The filter holder can be connected to the holding device and/or the dirt collecting container device in such a way that a pivoting movement of the filter holder is driven by a pivoting movement of the holding device;
• - The filter holder has a pivoting position in which access to an interior of the sweeper is made possible from a rear side or a front side of the sweeper.

This results in simplified maintenance of the sweeper. It is usually favorable if the dirt collection container device is brought into the second position for servicing the sweeper. Appropriate pivoting of the filter holder allows for improved access. Because the filter holder can be connected to the holding device or the dirt collection container device, the filter holder can also be pivoted via a corresponding drive for the holding device. It can in particular be provided that the filter holder covers an opening for an interior of the sweeper. Components such as a travel drive and/or a suction unit device can be arranged in the interior. Moving the filter holder away allows access to the interior and simplifies maintenance. In particular, the filter holder does not have to be removed from the sweeper.

In one embodiment, the filter holder is designed as a filter box or is arranged on/in a filter box. As a result, a filter device such as a round filter can be accommodated in a simple manner. The filter box can also accommodate the suction unit device. As a result, torque can be coupled to a motor in an interior of the sweeping machine in a simple manner. In the event of maintenance, the filter holder and possibly also the suction unit device can be brought into a “non-obstructive” position in a simple manner. The filter box can be used as an openable cover for an interior of the sweeper.

• - in der zweiten Stellung liegt die mindestens eine Öffnung an einer bezogen auf die Schwerkraftrichtung Unterseite der Schmutzsammelbehältereinrichtung;
• - in der ersten Stellung liegt die mindestens eine Öffnung quer zu einer bezogen auf die Schwerkraftrichtung Unterseite der Schmutzsammelbehältereinrichtung;
• - der Verschluss ist oder umfasst mindestens eine Klappe und insbesondere schwenkbare Klappe;
• - der Verschluss und/oder die mindestens eine Öffnung liegt in dem Durchsicht-Sichtfeld.

It is particularly advantageous if the dirt collection container device has at least one opening for coupling and uncoupling debris, and if the at least one opening is assigned a closure, in particular with at least one of the following:

• - In the second position, the at least one opening is located on an underside of the dirt collecting container device in relation to the direction of gravity;
• - In the first position, the at least one opening is transverse to an underside of the dirt collecting container device, based on the direction of gravity;
• - the closure is or comprises at least one flap and in particular a pivotable flap;
• - the closure and/or the at least one opening is in the see-through field of view.

It is then not necessary, for example, for the dirt collection container device to be held pivotably on the holding device.

If the at least one opening is located on an underside of the dirt collection container device in the second position, then gravitationally driven debris can be uncoupled in a simple manner. If the at least one opening is oriented transversely to the underside (which is not the same underside as in the second position) in the first position, then sweepings can be coupled from the brush roller into the dirt collection container device in a simple manner and in particular by means of a throw-over principle. The closure can be easily closed and opened with a flap. If the closure and/or the at least one opening is in the see-through field of view, an emptying process can be observed directly by the operator. In particular, a single opening arrangement is provided for filling and emptying the dirt collection container device.

• - dem Verschluss ist ein Antrieb zum Öffnen und Schließen zugeordnet;
• - bei Erreichen der ersten Stellung der Schmutzsammelbehältereinrichtung wird der Verschluss automatisch geöffnet;
• - beim Herausfahren aus der ersten Stellung der Schmutzsammelbehältereinrichtung wird der Verschluss automatisch geschlossen;
• - es ist eine Sensoreinrichtung vorgesehen, welche einen Öffnungszustand des Verschlusses überwacht;
• - ein Übergang von der ersten Stellung der Schmutzsammelbehältereinrichtung in die zweite Stellung ist bei nicht geschlossenem Verschluss gesperrt.

In the first position of the dirt collection container device, the closure is open or is opened when the first position is reached, in particular with at least one of the following:

• - the shutter is associated with a drive for opening and closing;
• - Upon reaching the first position of the dirt collection container device, the closure is automatically opened;
• - When moving out of the first position of the dirt collection container device, the closure is automatically closed;
• - A sensor device is provided which monitors an opening state of the closure;
• - A transition from the first position of the dirt collection container device to the second position is blocked when the closure is not closed.

This results in simplified use. Incorrect operation of the sweeper is reduced. If the closure is automatically closed when moving out of the first position, a plurality of emptying positions can be implemented in a simple manner, with emptying outside of high emptying also being possible.

• - jeweilige Teile der Strebe sind durch mindestens eine Schraube miteinander verbunden;
• - einer Schraubverbindung ist eine Mehrzahl von Schraublöchern zugeordnet, wobei nicht alle Schraublöcher belegt sind.

In one embodiment, the drive acts on the closure via a multi-part strut, in particular with at least one of the following:

• - respective parts of the strut are connected to each other by at least one screw;
• - A screw connection is assigned a plurality of screw holes, not all screw holes being occupied.

In particular when the dirt collection container device is discharged, it can happen that the dirt collection container device or the closure gets caught on a container wall, for example, and a corresponding overload situation occurs. A type of predetermined breaking point is provided by the multi-part and, for example, two-part design of the strut. in particular This can shear off a screw connection in the event of an overload, in order to prevent further damage, particularly to the locking mechanism. The connection can easily be restored by replacing a corresponding screw. If a plurality of screw holes are provided, not all of which are occupied, a new screw can be used to make the connection at a different location, i.e. not at the location where the damaged screw is located. This then does not have to be laboriously removed. A different screw hole from the plurality of screw holes is used to make a new or a repaired connection.

• - der Verschluss weist eine Gleitfläche für Kehrgut auf, welche einem Innenraum der Schmutzsammelbehältereinrichtung zugewandt ist;
• - die Gleitfläche überdeckt die Welle;
• - die Gleitfläche ist elastisch oder federnd ausgebildet;
• - die Gleitfläche ist aus einem Blechmaterial hergestellt.

In one embodiment, the closure is held pivotably on the dirt collection container device via a shaft, with at least one of the following:

• - The closure has a sliding surface for debris, which faces an interior of the dirt collection container device;
• - the sliding surface covers the shaft;
• - The sliding surface is elastic or resilient;
• - the sliding surface is made of sheet metal material.

When the closure is open, debris can slide along the sliding surface for emptying. This results in simplified and defined emptying. The shaft is protected against contamination by covering the shaft with the sliding surface. If the sliding surface is designed to be elastic and, in particular, there is a certain pretension, then the at least one opening is securely closed. The sliding surface can be produced in a simple manner, in particular also in a resilient manner, from a sheet metal material.

In one embodiment, the dirt collection container device has a bulge in which the shaft is arranged. As a result, the shaft can be arranged in a protected manner and in particular it can be covered by a closure element and in particular by a sliding surface.

Alternatively or additionally, the invention is also based on the object of providing a sweeping machine of the type mentioned at the outset, which can be produced in a simple manner and has advantageous driving characteristics.

In the case of the sweeper mentioned at the outset or the sweeper mentioned above, this object is achieved according to the invention in that a base plate is provided which is arranged on the chassis, the at least one brush roller being mounted on the base plate, and the base plate having an interior space of the dust-tight covering of the sweeper.

The base plate initially represents a mounting plate on which components of the sweeper and in particular the at least one sweeping roller can be mounted.

The base plate allows an interior of the sweeper, which accommodates further components such as a travel drive, to be covered in a dust-tight manner towards the sweeping roller.

The base plate provides additional mass in the system, which lowers the center of gravity. As a result, it forms a counterweight to the dirt collection container device, in particular in the second position of the dirt collection container device. This makes it possible to prevent the sweeping machine from tipping over in a particularly effective manner during a high emptying process.

Furthermore, the traction of the sweeper is improved by the base plate.

It is favorable if the base plate is (in advance) provided with a plurality of threads. This facilitates the assembly of components when manufacturing the sweeper.

In one embodiment, at least one side broom is mounted on the base plate. This results in simple manufacturability.

• - die Grundplatte ist aus Stahl hergestellt;
• - die Grundplatte weist eine Masse von mindestens 40 kg und insbesondere von mindestens 45 kg und insbesondere von mindestens 50 kg auf;
• - die Grundplatte weist eine Dicke von mindestens 6 mm und insbesondere von mindestens 7 mm und insbesondere von mindestens 8 mm auf.

It is favorable if at least one of the following is provided:

• - the base plate is made of steel;
• - the base plate has a mass of at least 40 kg and in particular at least 45 kg and in particular at least 50 kg;
• - the base plate has a thickness of at least 6 mm and in particular at least 7 mm and in particular at least 8 mm.

The center of gravity of the sweeper can be lowered with an appropriate base plate. A counterweight to the dirt collection container device is provided, in particular during high emptying. Improved traction results.

In one embodiment, the self-propelled sweeper is designed as a ride-on machine, with the passenger area having an operator's seat comprises, and wherein in particular a seated operator in the second position of the dirt collection container device has the see-through field of vision through the window.

• - ein Fahrantrieb;
• - eine an dem Fahrgastbereich angeordnete Lenkeinrichtung.

In particular, at least one of the following is provided:

• - a traction drive;
• - a steering device arranged in the passenger area.

This results in simple operability for a sweeping cleaning process.

• - die mindestens eine Kehrwalze ist an dem Fahrgestell angeordnet;
• - die mindestens eine Kehrwalze ist eine Hauptkehrwalze;
• - die mindestens eine Kehrwalze ist unterhalb des Fahrgestells angeordnet;
• - der mindestens einen Kehrwalze ist ein Rotationsantrieb zugeordnet;
• - die mindestens eine Kehrwalze ist zwischen einer Vorderradeinrichtung und einer Hinterradeinrichtung positioniert;
• - es ist mindestens ein Seitenbesen vorgesehen, welcher insbesondere so angeordnet und ausbildet ist, dass in einem Kehrbetrieb über den mindestens einen Seitenbesen Kehrgut der mindestens einen Kehrwalze zugeführt ist.

It is also favorable if at least one of the following is provided:

• - The at least one brush roller is arranged on the chassis;
• - the at least one sweeping roller is a main sweeping roller;
• - The at least one brush roller is arranged below the chassis;
• - The at least one sweeping roller is associated with a rotary drive;
• - the at least one sweeping roller is positioned between a front wheel assembly and a rear wheel assembly;
• - At least one side brush is provided, which is arranged and designed in particular in such a way that in a sweeping operation, debris is fed to the at least one brush roller via the at least one side brush.

This results in an effective sweeping process. In particular, there is a high area efficiency for sweeping cleaning.

According to the invention, a method for producing a sweeper of the type mentioned is also provided, in which a base plate is produced, at least one brush roller is mounted on the base plate, and the base plate is mounted on a chassis device, the base plate forming a dust-tight seal to an interior of the Sweeper forms.

The chassis device with the mounted base plate can be regarded as a chassis.

The method according to the invention has the advantages already explained in connection with the sweeping machine according to the invention.

In particular, the sweeping machine according to the invention can be produced using the method according to the invention.

It is advantageous if the base plate is provided with a plurality of threads, in particular before components are installed. This results in simplified assembly of components on the base plate.

In one embodiment, at least one side broom is mounted to the base. This then forms a holder (in addition to the at least one brush roller) for the at least one side brush.

• - die Grundplatte ist aus Stahl hergestellt;
• - die Grundplatte weist eine Masse von mindestens 40 kg und insbesondere von mindestens 45 kg und insbesondere von mindestens 50 kg auf;
• - die Grundplatte weist eine Dicke von mindestens 6 mm und insbesondere von mindestens 7 mm und insbesondere von mindestens 8 mm auf.

It is also favorable if at least one of the following is provided:

• - the base plate is made of steel;
• - the base plate has a mass of at least 40 kg and in particular at least 45 kg and in particular at least 50 kg;
• - the base plate has a thickness of at least 6 mm and in particular at least 7 mm and in particular at least 8 mm.

A sweeping machine with a relatively low center of gravity can thus be provided. The base plate forms a counterweight, particularly if the sweeper is to be emptied at a high level. Furthermore, the traction of the sweeper is improved by an appropriate base plate.

• - die Komponenten ragen über eine erste Seite der Grundplatte hinaus und die mindestens eine Kehrwalze ragt über eine zweite Seite hinaus, wobei die zweite Seite der ersten Seite gegenüberliegt;
• - die Komponenten umfassen Elemente eines Fahrantriebs und/oder einer Saugaggregateinrichtung und/oder eines Antriebs für die mindestens eine Kehrwalze.

Furthermore, it is favorable if components of the sweeper are mounted on the base plate, which are positioned in the interior of the sweeper, in particular with at least one of the following:

• - the components protrude beyond a first side of the base plate and the at least one broom protrudes beyond a second side, the second side opposite the first side;
• - The components include elements of a traction drive and/or a suction unit device and/or a drive for the at least one brush roller.

• 1 ein Ausführungsbeispiel einer erfindungsgemäßen selbstfahrenden Kehrmaschine in perspektivischer Darstellung, wobei eine Schmutzsammelbehältereinrichtung in einer ersten Stellung ist;
• 2 die Kehrmaschine gemäß 1, wobei die Schmutzsammelbehältereinrichtung in einer Zwischenstellung vor einer Hochentleerungsstellung ist;
• 3 die Kehrmaschine gemäß 1, wobei die Schmutzsammelbehältereinrichtung sich in einer zweiten Stellung befindet, welche eine Hochentleerungsstellung ist, und wobei ein Verschluss für die Schmutzsammelbehältereinrichtung geschlossen ist;
• 4 die gleiche Ansicht wie 3 mit offenem Verschluss;
• 5 eine weitere perspektivische Darstellung der Kehrmaschine gemäß 1;
• 6 eine Schnittansicht der Kehrmaschine gemäß 1;
• 7 eine perspektivische Ansicht einer Grundplatte der Kehrmaschine gemäß 1;
• 8 eine Seitenansicht der Grundplatte gemäß 7;
• 9 eine vergrößerte Darstellung des Bereiches A gemäß 5;
• 10 eine Schnittansicht der Schmutzsammelbehältereinrichtung mit geschlossenem Verschluss;
• 11 die gleiche Ansicht wie 10 mit offenem Verschluss;
• 12 eine perspektivische Darstellung der Kehrmaschine gemäß 1 mit einem hochgeklappten Filterkasten;
• 13 eine Seitenansicht der Kehrmaschine mit hochgeklapptem Filterkasten gemäß 12;
• 14 eine perspektivische Hinteransicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Kehrmaschine;
• 15 eine Schnittansicht der Kehrmaschine gemäß 14; und
• 16 eine schematische Darstellung eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Kehrmaschine.

The following description of preferred embodiments serves to explain the invention in more detail in conjunction with the drawings. Show it:

• 1 an embodiment of a self-propelled sweeper according to the invention in a perspective view, wherein a dirt collection container means is in a first position;
• 2 the sweeper according to 1 wherein the debris collection container means is in an intermediate position prior to a high dump position;
• 3 the sweeper according to 1 wherein the debris container means is in a second position which is a high dump position and a closure for the debris container means is closed;
• 4 the same view as 3 with open shutter;
• 5 another perspective view of the sweeper according to 1 ;
• 6 a sectional view of the sweeper according to FIG 1 ;
• 7 a perspective view of a base plate of the sweeper according to FIG 1 ;
• 8th a side view of the base plate according to FIG 7 ;
• 9 an enlarged representation of the area A according to FIG 5 ;
• 10 a sectional view of the dirt collection container device with the shutter closed;
• 11 the same view as 10 with open shutter;
• 12 according to a perspective view of the sweeper 1 with a folded up filter box;
• 13 a side view of the sweeper with the filter box folded up according to FIG 12 ;
• 14 a rear perspective view of another embodiment of a sweeper according to the invention;
• 15 a sectional view of the sweeper according to FIG 14 ; and
• 16 a schematic representation of a further embodiment of a sweeper according to the invention.

A first embodiment of a self-propelled sweeper according to the invention, which in the 1 until 13 shown and denoted by 10 comprises a chassis 12. The chassis 12 forms the main body of the sweeper 10.

A rear wheel device 14 and a front wheel device 16 are arranged on the chassis 12 . In relation to a forward direction of travel 17 ( 1 ), the rear wheel device 14 has a right rear wheel 18a and a left rear wheel 18b. The rear wheel assembly 14 has a wheel axle 20 ( 4 ). When on a floor to be cleaned 22 ( 6 ) Standing sweeper 10, the wheel axis 20 is oriented parallel to the floor 22.

In one embodiment, the front wheel assembly 16 is formed by a caster wheel 24 . The steering roller 24 and thus the sweeping machine 10 can be steered by a steering device 26 .

In one embodiment, a steering column 28 is arranged on the chassis 12, on which the steering device 26 is seated. The steering device 26 includes, in particular, a steering wheel 30.

The self-propelled sweeper 10 has a passenger area 32 . The passenger area 32 "accommodates" an operator of the sweeper 10 with the operator riding with the sweeper. The passenger area 32 is arranged on the chassis 12 .

In one embodiment, the passenger compartment 32 includes a seat 34 with the operator seated in the seat 34 when properly positioned. Accordingly, the steering wheel 30 is accessible to a seated operator and, for example, foot pedals 36 next to the steering column 28 can be operated.

5 shows a seated operator 38.

The sweeper 10 has an interior 40 (cf 6 ), which is arranged in particular between the chassis 12 and the seat 34. The interior 40 accommodates components of the sweeper 10 .

The sweeper 10 includes a travel drive 42. A travel movement of the sweeper 10 is driven by the travel drive 42. The travel drive 42 acts in particular on the front wheel assembly 26 and thereby on the steering roller 24.

The traction drive 42 is an internal combustion engine or an electric motor.

The interior 40 has an opening 44 which is open in a direction opposite to the steering column 28 .

The chassis 12 has a first end 46 and an opposite second end 48. Between the first end 46 and the second end 48 the chassis 12 extends in a longitudinal direction 50 (cf 2 ).

A brush roller 52 is arranged on the chassis 12 (cf 6 ). The brush roller 52 can be rotated about an axis of rotation 54 . The axis of rotation 54 is parallel to the floor 22 when the sweeper 10 is standing properly on the floor 22 .

The axis of rotation 54 is then, in particular, perpendicular to the longitudinal axis (longitudinal direction) 50 of the chassis 12.

A rotary drive for rotation about the axis of rotation 54 is assigned to the roller brush 52 . This rotary drive can be arranged in the interior space 40 or can be arranged directly on the brush roller 52 .

The sweeper 52 is positioned beneath the chassis 12 between the front wheel assembly 16 and the rear wheel assembly 14 . It forms the main sweeping tool of sweeper 10.

In one embodiment, it is provided that the sweeping roller is delimited laterally by an apron device 56 .

The skirt assembly 56 is closed at the sides and specifically contacts the floor 22. The skirt assembly 56 is open toward the first end 46, which is a front end, to accommodate sweepings.

In particular, it is contemplated that the skirt assembly 56 is closed rearwardly toward the second end 48 and touches the ground.

In one embodiment, a distance between lateral skirts of the skirt assembly 56 decreases in the direction from the first end 46 to the second end 48.

In one embodiment, the sweeper 10 includes a base 58 ( 6 until 7 ). The base plate 58 is fixedly connected to the chassis 12 and can be considered part of the chassis 12 .

The roller brush 52 is mounted on the base plate 58 via a corresponding roller brush holder 60 .

Provision can be made here for the roller brush holder 60 to be seated on the base plate 58 so that it can be locked in place and in particular to be movable in a lockable manner in a height direction 62 . In this way it is possible, in particular, to lift the rotary brush 52 off the floor 22 when not in sweeping operation, and correspondingly to lower the rotary brush 52 onto the floor 22 for sweeping operation.

Furthermore, (at least) one side brush 64 is seated on the base plate 58. The side brush 64 is thereby seated (via the base plate 58) on the chassis 12. The side brush 64 projects in particular beyond the first end 46 and also laterally beyond the chassis 12. It is driven in rotation with an axis of rotation which is oriented transversely to the base 22 and in particular at a slight incline to the perpendicular to the base 22 and is therefore oriented transversely to the axis of rotation 54 .

Edge areas can be swept by the side brush 64 . The side brush 64 is arranged and designed in such a way that debris is fed to the brush roller 52 via it.

The base plate 58 is arranged on the chassis 12 in such a way that it forms a dust-tight covering of the interior 40 towards the brush roller 52 or towards the floor 22 .

The base plate 58 is provided with a plurality of threads 66 so that components positioned in the interior space 40 can be easily attached to the base plate 58 .

The base plate 58 is made in particular from a steel material and has a mass of at least 40 kg. In one embodiment, the base plate 58 has a mass of approximately 50 kg.

In particular, it is provided that the base plate 58 has a thickness of at least 6 mm and in particular at least 7 mm.

In a specific embodiment, the base plate 58 has a thickness of approximately 8 mm.

The base plate 58 forms a mounting plate for components of the sweeper 10, which are positioned in the interior 10. The brush roller 52 and the at least one side brush 64 are mounted on it. This results in simple manufacturability.

In addition, the base plate 58 protects the interior 40 against dust as a dust-proof cover.

Series production for the sweeping machine 10 is made possible due to the threads 66 arranged on the base plate 58 .

As will be explained later, the sweeper 10 is designed to be emptied at a high level. The base plate 58 forms a counterweight. The center of gravity of the sweeper 10 is lowered by the base plate 58 .

Furthermore, when the sweeper 10 is being driven, the traction is increased by the base plate 58 .

The sweeping machine 10 includes a dirt collecting container device 68 which is articulated to the chassis 12 in a movable and pivotable manner via a holding device 70 (at least indirectly).

A body 72 is connected to the chassis 12 . This extends in a vertical direction 74. The vertical direction 74 is transverse and in particular perpendicular to the longitudinal axis 50 of the chassis 12. The vertical direction 74 is in particular perpendicular to the floor 22 when the sweeper 10 is standing properly on a level floor 22.

The body 72 is part of the chassis 12 or at least firmly connected to it.

A pivot bearing 76 on which the holding device 70 is seated is arranged on the body 72 . A pivot axis 78 of the pivot bearing 76 is parallel to the axis of rotation 54 of the rotary brush 52 or parallel to the floor 22 when the sweeper 10 is standing properly on the floor 22 . The pivot axis 78 is also parallel to the wheel axis 20.

Furthermore, the pivot axis 78 is transverse and in particular perpendicular to the vertical direction 74.

Furthermore, the pivot axis 78 is transverse and in particular perpendicular to the longitudinal direction 50.

The pivot bearing 76 is approximately (relative to the height direction 74) at the height of the steering wheel 30 or an upper side of the seat 34.

The pivot bearing 76 is also located rearward of the seat 34 (toward the second end 48). A projection of the pivot bearing 76 in the vertical direction 74 lies outside of the interior space 40.

The holding device 70 has a first strut 80a and a spaced-apart second strut 80b. The first strut 80a and the second strut 80b are each mounted on the pivot bearing 76 about the pivot axis 78 .

The dirt collection container device 68 is connected to the first strut 80a and the second strut 80b.

In one embodiment, the debris collection container assembly 68 includes a debris collection box 82 positioned between the first strut 80a and the second strut 80b and supported by the two struts 80a, 80b.

The dirt collection container device 68 and thus the dirt collection box 82 has (at least one) opening 84 (compare also the 10 and 11 ) and in particular exactly one opening 84.

A closure 86 is assigned to this opening 84 . The closure 86 is a hinged flap 88 in one embodiment.

The flap 88 is attached to a pivot bearing 90 about a pivot axis 92 (cf 4 ) stored on the dirt collection container device 68. The pivot bearing 90 includes a shaft 93.

The dirt collection container device 68 has a bulge 94 in the area of the pivot bearing 90 (compare Figs 10 and 11 ). The bulge 94 adjoins the opening 84 . At the bulge 94, a cross-sectional area of the debris collection container means 68 (the debris collection box 82) is larger than outside of the bulge 94; a width B ₁ of the dirt collection container device 68 at the bulge 94 is greater than a width B ₂ outside of the bulge 94 (cf 11 ).

The dirt collection container device 68 (the dirt collection box 82) has a first area 96 and has a second area 98 adjoining the first area. At the second portion 98, the opening 84 is formed and the bulge 94 is also formed. The closure 86 is located on the second area 98.

The dirt collection container device 68 is connected to the holding device 70 via the first region 96 .

The first area 96 is delimited by a first wall 100 . The second area is delimited by a second wall 102 . The second wall 102 lies at an obtuse angle 104, which is in the range of approximately 135°, for example, to the first wall 100.

The shaft 93 and in particular the pivot bearing 90 are attached to the bulge 94 arranges. The shaft 93 is positioned in the bulge 94 .

The flap 88 is mounted on the pivot bearing 90 in such a way that it covers the shaft 93 from an interior space 106 of the dirt collection container device 68 .

The closure 86 (the flap 88) has a sliding surface 108 facing the interior space 106. Through this sliding surface 108, debris can be decoupled in a simple manner.

The closure 86 is designed to be elastic and, in particular, designed to be resilient. For example, it is made from a sheet metal material. In this way, a good closing of the opening 84 can be achieved, particularly if there is a certain pretension.

The flap 88 on the dirt collection container device 68 basically has two distinct positions, namely a closed position 110 ( 10 ). In this position of the closure 86 the holding device 70 is pivoted with the dirt collecting container device 68 about the pivot axis 78 . This is explained in more detail below.

Furthermore, the closure 86 has an open position 112 ( 11 ). In this open position 112, debris coming from the brush roller 52 can be coupled into the dirt collection container device 68 and the dirt collection container device 68 can fulfill its dirt collection function. Furthermore, in the open position 112, the dirt collection container device 68 can be emptied. This is described in more detail below.

A drive 114 is assigned to the closure 86, via which the closure 86 can be opened or closed, that is to say can be brought into the closed position 110 or into the open position 112.

In one embodiment, the drive 114 is a hydraulic drive and includes, for example, a hydraulic cylinder that acts on the closure 86 via a strut 116 .

The drive can, for example, also be an electric motor or be pneumatic.

In particular, a corresponding strut 116 and a drive 114 are arranged on both sides of the dirt collecting container device 68 .

In particular, it is provided that the drive 114 is positioned outside the interior 106 of the dirt collection container device 68 (the dirt collection box 82) and is positioned, for example, on an outside of the dirt collection container device 68.

The drive 114 can preferably be activated by the operator 38, who is properly positioned in the passenger area 32, so that an operator 38 can open or close the closure 86.

In one embodiment, a sensor device 118 ( 9 ) provided, by which it can be determined whether the closure 86 is in its closed position 110 or not.

For example, if the sensor device detects that the closure 86 is not in the closed position 110, a movement of the holding device 70 can be blocked by a corresponding control device. This is explained in more detail below.

In one embodiment, the strut 116 is formed in multiple parts with a first part 116a and a second part 116b. The first part 116a and the second part 116b are connected to one another via at least one screw. In the embodiment shown, two screws are provided, namely a first screw 117a and a second screw 117b.

A first row of screw holes 119a and a second row of screw holes 119b are provided for connecting the first part 116a to the second part 116b. The first row of screw holes 119a and the second row of screw holes 119b include a plurality of screw holes. The first row of screw holes 119a and the second row of screw holes 119b are spaced parallel to each other.

At the in 9 In the exemplary embodiment shown, the rows of screw holes 119a, 119b each have five screw holes.

Provision is made in particular for the second part 116a to have rows of screw holes adapted thereto.

It is provided that not all screw holes of the respective row of screw holes 119a and 119b are used to connect the second part 116b to the first part 116a. In the exemplary embodiment shown, only one screw hole is used per row of screw holes 119a, 119b, namely the one on which the first screw 117a (in the first row of screw holes 119a) or the second Screw 117b (at the second row of screw holes 119b) is seated.

In practice, the case sometimes occurs that the closure 86 gets caught, for example, on a container wall. The multi-part and in particular two-part design of the strut 116 provides a type of predetermined breaking point in order to prevent further damage to the locking mechanism.

In the case of a large force load, the force threshold is first exceeded at the screws 117a and/or 117b, which can shear off. The damage can thus be concentrated on the screw 117a and/or 117b if an excessive overload does not occur. This can then be easily repaired by inserting one or two new screws 117a, 117b.

Because the rows of screw holes 119a, 119b already have a plurality of openings, no new hole or the like has to be drilled in the event of repairs. Furthermore, a damaged screw 117a or 117b does not have to be removed, but a new connection between the first part 116a and the second part 116b of the strut 116 can be established in a simple manner via existing screw holes.

The sweeper 10 has a receptacle 120 (see, for example, 2 ) for the dirt collection container device 68. The receptacle 120 is arranged between the right rear wheel 18a and the left rear wheel 18b. In particular, the receptacle 120 is formed on the body 72 .

The receptacle 120 is formed as a slide-in receptacle. The dirt collection container device 68 can be positioned in an insertion direction 122 in the receptacle 120 by the holding device 70 . The dirt collection container device 68 can be brought into the receptacle 120 in the manner of a drawer.

The dirt collection container device 68 has a first position 124 ( 1 , 6 ), in which the dirt collection container device 68 is positioned in the receptacle 120.

In the first position 124, which is a sweeping operating position for the dirt collection container device 68, when the closure 86 is open, debris from the rotary brush 52 can be coupled into the dirt collection container device 68 via the opening 84.

In the first position 124 of the dirt collection container device 68 (see in particular 6 ) relative to the gravitational direction g, the dirt collection container device 68 (the dirt collection box 82) has an underside 126. This underside 126 is formed on the second wall 102. The underside 126 is aligned at least approximately parallel to the floor 22 on which the sweeper 10 stands.

The opening 84 is oriented at an acute angle 128 to the underside. In one exemplary embodiment, this acute angle is in the range of approximately 45°.

The opening 84 is also oriented at an obtuse angle to the height direction 74 .

The closure 86 (flap 88) is open, ie it is in the open position 112, to collect dirt. In the view according to FIG 6 the shutter 86 is still closed. An opening is indicated by an arrow with reference number 130 .

The opening can be initiated by an operator 38, for example, or it takes place automatically when it is recognized that the dirt collection container device 68 has reached the first position 124.

A free space 132 is formed between the base plate 58 and the sweeping roller 52 , in which the closure 86 can be pivoted about the pivot axis 92 .

The free space 132 makes it possible to keep the closure 86 (the flap (88) in the open position 112 for a sweeping operation, so that the sweepings can be coupled from the rotary brush into the interior 106 of the dirt collection container device 68 via the opening 84.

To move the dirt collection container device 68 out of the first position 124 , the closed position 110 of the closure 86 can be reached by moving the closure 86 (the flap 88 ) in the free space 132 .

In one embodiment, a seal 136 is assigned to the opening 84 in the area of the brush roller 52 in the area of a wall 134 in which the free space 132 is formed, which in the first position 124 for a dust-tight contact of the dirt collection container device 68 (with an end wall). the wall 134 provides.

In one exemplary embodiment, in the first position 124 (with the shutter 86 open), the arrangement and design of the roller brush 52 in relation to the dirt collection container device 68 is such that sweepings are directly transported from the roller brush 52 into the interior 106 of the dirt collection container facility 68 is funded. Debris is to a certain extent thrown into the dirt collection container device 68 by the rotary brush rotating about the axis of rotation 54 .

A corresponding direction of rotation 138 of the brush roller 52 about the axis of rotation 54 ( 6 ) is then towards the opening 84 in particular. According to the view 6 this direction of rotation 138 is clockwise.

In particular, the relative arrangement of the broom 52 and debris collection bin assembly 68 in the first position 124 is a throw-over arrangement. Sweepings are thrown by the brush roller in the throw-over principle (overhead principle) into the dirt collection container device 68 via its opening 84 .

The dirt collection container device 68 has (at least) a second position 140 ( 3 until 5 ). The second position 140 is a high emptying position for emptying the dirt collection container device 68.

In the second position 140, the opening 84 is spaced apart from the receptacle 120 in the vertical direction 74.

To reach the second position 140 starting from the first position 124, the holding device is rotated about the pivot axis 78 in a direction 142 ( 2 ) pivoted. The dirt collection container device 68 is pushed out of the receptacle 120 against the direction of insertion 122 and is then pushed upwards in the height direction 74 relative to the direction of gravity g.

The second position 140 is an excellent position in which an underside 144 of the dirt collecting container device 68 is formed by the closure 86 or the opening 84 in relation to the direction of gravity g.

In the second position 140 the opening 84 is aligned perpendicularly or at a small acute angle (in particular less than 30°) to the direction of gravity g when the sweeping machine 10 is standing on a flat floor 22 .

Then, when the shutter 86 is opened, debris falls out of the debris collection bin assembly 68 by gravity and can be coupled along the sliding surface 108 into an external bin, such as a container.

In 2 an intermediate position between the first position 124 and the second position 140 is shown.

When the dirt collector assembly 68 is in the second position 140 ( 3 , 4 ), then the dirt collection container device 68 protrudes with its opening 84 over the second end 48 (the rear end) of the chassis 12.

The body 72 has a rear end 146 at the second end 48. In relation to the longitudinal direction 50, the dirt collection container device 68 is spaced with its opening 84 from this rear end 146.

In the second position 140, the opening 84 is at a height H ₁ above the floor 22. For example, the height H ₁ is also correspondingly above a height of an upper end of the seat 34 in the height direction 74 to the floor 22.

In particular, the height H ₁ is above a corresponding height of the sweeper 10 at the rear end 146 in the height direction 74.

The closure 86 (the flap 88) is mounted on the dirt collection container device 68 via the pivot bearing 90 in such a way that in the open position 112 ( 4 ) when the dirt collector assembly 68 is in the second position 140, the sliding surface 108 forms an inclined plane away from the rear end 146 of the sweeper 10.

When the dirt collection container device 68 is moved from the first position 124 to the second position 140, the closure 86 (the flap 88) is closed beforehand, that is to say brought into the closed position 110.

In particular, this takes place automatically via the drive 114 when it is detected that a movement out of the first position 124 is taking place.

If, for example, an operator 38 initiates a pivoting movement of the holding device 70, the closure 86 is then automatically brought into the closure position 110, starting from the first position 124.

When the second position 140 is reached, the operator 38 can open the closure and bring it into the open position 112 (via the drive 114) in order to allow the dirt collection container device 68 to be emptied into a container, for example.

It is also possible that an opening at one or more positions below the second position 140 is possible for an operator.

As mentioned, provision is made in particular for the closure 86 to be automatically closed (brought into the closed position 110) when the dirt collection container device 68 is moved out of the first position 124. If, for example, the sensor device 118 reports that the closure 86 is not closed, then in particular the movement of the dirt collection container device 68 out of the first position 124 is stopped or not activated.

A drive 148 is provided for pivoting the holding device 70 and thus the dirt collecting container device 68 relative to the chassis 12 . This drive 148 can be hydraulic, pneumatic or motor, and in particular an electric motor.

In particular, the drive 148 can be activated by an operator 38 .

In one embodiment, the body 72 has spaced apart grooves 150a, 150b which respectively countersunkly receive the first strut 80a (the groove 150a) and the second strut 80b (the groove 150b) in the first position 124 (cf 1 ). As a result, the struts 80a, 80b do not protrude beyond an outer contour of the sweeper 10.

The sweeper 10 includes a suction unit device 152 with a fan 154. The fan 154 is motor-driven in particular. For this purpose, a corresponding torque is diverted from the travel drive 42 .

It is also possible for the suction unit device 152 to have its own motor and, for example, an electric motor.

The suction unit device 152 is preferably arranged at least partially in the interior space 40, and in particular it can be guided out of the interior space 40 (see below).

The suction unit device 152 generates a suction flow.

In the first position 124 the dirt collection container device 68 is assigned one or more connections 156 via which the suction flow is coupled into the interior 106 of the dirt collection container device 68 .

The corresponding suction flow of the suction unit device 152 serves in particular to support the coupling of sweepings into the dirt collection container device 68 and also to keep dust pollution in the sweeper 10 and the area around the sweeper 10 low. Fine dust around the sweeping roller 52 can be sucked off to a certain extent by the suction unit device 152 .

In the exemplary embodiment shown, two adjacent connections 156 are provided, which provide a fluidic connection between the suction unit device 152 and the interior space 106 of the dirt collection container device 68 in the first position 124 .

The dirt collection container device 68 correspondingly has one or more mating connections 158 adapted to the connection or connections 156 .

In particular, the connection or connections 156 and the counter connection or connections 158 are assigned a sealing device which ensures a fluid-tight seal in the first position 124 of the dirt collection container device 68 .

The counter-connection 158/counter-connections 158 are arranged on the dirt collection container device 68 in such a way that no debris can fall out of them when they are pivoted into the second position 140 .

In one embodiment, the debris collection container assembly 68 is L-shaped in cross-section (cf 6 ), a third region 160 adjoining the second region 98 transversely. The holding device 70 with its struts 80a, 80b with the dirt collecting container device 68 is also fixed to this third area 160 .

The counter-connection or connections 158 are arranged on the third area 160 . If, starting from the first position 124 , the dirt collection container device 68 is brought into the second position 140 , debris then collects in the first area 96 and the second area 98 as a result of gravity. In the second position 140 of the dirt collection container device 68, relative to the direction of gravity, sweepings lie above the closure 86.

A filter device 162 is assigned to the suction unit device 152 . In the exemplary embodiment shown, the filter device 162 is designed as a round filter. The filter device 162 has a clean side, which faces the suction unit device 152 , and a dirty side, which faces the connection 156 .

The filter device 162 is held in relation to the chassis 12 via a filter holder 164 .

In one embodiment, the filter holder 164 is designed as a filter box 165, which is at least indirectly connected to the chassis 12. The filter box 165 also holds or accommodates the suction unit device 152 .

In a normal operating mode (sweeping mode) of the sweeping machine 10, the filter holder 164 or the filter box 165 (compare the 1 until 5 ) fixed firmly with respect to the chassis 12 (and thus also the suction unit device 152). It is not moved along with a movement of the dirt collection container device 68 from the first position 124 to the second position 140 or from the second position 140 to the first position 124 .

A connection 166 is located on the filter box 165 and is used for the torque-effective connection of the suction unit device 152 to the travel drive 42 .

For example, a torque-effective connection takes place via a belt drive and the connection 166 is then a belt pulley. A pulley is also assigned to the travel drive and a belt is guided on the pulley.

Furthermore, the one or more connections 156 are arranged on the filter box (compare the 12 and 13 ).

The filter holder 164 (the filter box 165) is pivotally arranged with respect to the chassis 12 in one embodiment. As a result, the suction unit device 152 and the filter device 162 can be pivoted relative to the chassis 12. A pivot bearing 168 is provided for this purpose. The pivot bearing 168 has a pivot axis 170 .

The pivot axis 170 lies parallel to the pivot axis 78 of the holding device 70.

In one embodiment, pivot axis 170 and pivot axis 78 coincide.

In particular, the pivot bearing 168 is arranged on the pivot bearing 76 .

The filter holder 164 (the filter box 165) can be moved in a direction 172 ( 13 ) pivot upward away from the floor 22. As a result, that part of the suction unit device 152 which is immersed in the interior space 106 when the filter box 165 is not pivoted is also led out of the interior space 106 .

In one embodiment, it is provided that the filter holder 164 is coupled (e.g. manually) to the holding device 70 in such a way that a pivoting movement of the holding device 70 also pivots the filter holder 164 (and thus also the suction unit device 152).

The filter holder 164 has a position 174 ( 12 , 13 ) in which from the rear end 146 access to the opening 44 for the interior 40 is made possible. The interior 40 and its components can then be accessed for maintenance, etc.

In the embodiment in which the torque-effective connection of the suction unit device 152 via the connection 166 to the travel drive 42 is produced via a belt drive, the corresponding belt must be released before/when the filter box 165 is pivoted.

The filter box 165 forms a lid/closure of the interior space 40, this closure being easily positionable by pivoting to allow easy access to the interior space 40.

During normal sweeping operation, including high dumping, as described above, the filter box 165 with the filter device 162 and the suction unit device 152 is fixed with respect to the chassis 12 and in a position in which the filter holder 164 (the filter box) opens the opening 44 to the rear end 146 closed ( 1 until 5 ). The holding device 70 has a window 176 ( 3 until 5 ). This window 176 provides an operator 38 with a see-through field of view 178 ( 5 ). This window 176 is formed between the first strut 80a, the second strut 80b, the dirt collection container device 68 (and thereby its third region 160) and the body 72.

The window 176 is at least approximately rectangular in shape. A width B of the window 176, which corresponds to a distance between the struts 80a, 80b, is at least 50 cm.

A height H ₂ of the window 176, which corresponds to a distance between the body 72 and the dirt collection container device 68, is at least 40 cm.

In a specific embodiment, the window 176 is rectangular with a width B of the order of 80 cm and with a height H ₂ which is of the order of 70 cm.

For an operator properly positioned at the passenger compartment 32 ( 5 ), the window 176 allows viewing in a direction 180, which corresponds to a direction from the first end 46 to the first end 48.

For example, to approach a container for high dumping, the sweeper 10 travels in a reverse direction 182 ( 5 ).

A maneuvering area 184 , which lies in front of the second end 48 , is assigned to the sweeping machine 10 . The operator 38 can view the maneuvering area 184 through the see-through field of view 178 . This enables an optimized start-up, for example of a container, and also an optimized emptying.

The window 176 has an area which is at the same height as the closure 86 in the second position 140 of the dirt collection container device 68.

In particular, an operator can also observe the emptying process via the see-through field of view 178 and in particular observe whether the closure 86 is open or closed.

The operator 38 can optimize high emptying of the dirt collection container device 68 in the second position 140 through the see-through field of vision 178 provided by the window 176 . For example, it can drive closer to a container for high dumping. As mentioned, he can observe the emptying process.

This is achieved in that the filter holder 164 (filter box) is not also pivoted during the transition from the first position 124 to the second position 140 but remains on the body 72 .

It is provided that the body 72 has an upper side 186 ( 5 ), which defines a maximum height of the body 72 in the height direction 74. It is envisaged that this upper side 186 will lie below a head region of the operator 38 in relation to an operator properly positioned at the passenger area 32 . In particular, this top 186 lies below a top of the seat 34 (cf 1 ).

• In einem Reinigungsbetrieb der Kehrmaschine 10 ist der Bediener 38 an dem Fahrgastbereich 32 positioniert. Insbesondere sitzt er auf dem Sitz 34.

The self-propelled sweeper according to the invention works as follows:

• When the sweeper 10 is in a cleaning mode, the operator 38 is positioned at the passenger area 32 . In particular, he is seated in seat 34.

In sweeping operation, the brush roller 52 is lowered onto the floor 22 to be cleaned.

The sweeping machine 10 drives over the floor 22 to be cleaned. The sweeping roller rotates about the axis of rotation 24 in the direction of rotation 138. Dirt (sweeping material) is taken along by the sweeping roller 52, which is provided with appropriate bristles. In the sweeping mode, the dirt collection container device 68 is in the first position 124. Sweeping material is thrown by the rotary brush 52 through the opening 84 into the dirt collection container device 68.

If necessary, sweepings are also fed to the rotary brush 52 via one or more side brushes 64 .

During normal sweeping operation, the closure 86 (the flap 88) is in the open position 112. This enables sweepings to be coupled into the dirt collection container device 68.

The sweeping operation is supported by the suction unit device 152 . A suction flow is coupled into the interior 106 of the dirt collection container device 68 via the connection or connections 156 , 158 .

In 6 the arrow with the reference number 188 indicates that the interior 106 of the dirt collecting container device 68 is subjected to a suction flow.

After the end of the sweeping process or when the dirt collection container device 68 is full, an emptying process takes place. For this purpose, the dirt collection container device 68 is brought from the first position 124 into the second position 140 . For this purpose, in turn, the holding device 70 is pivoted.

When the dirt collection container device 68 is pivoted out of the first position 124 , the closure 86 is in particular automatically brought into the closed position 110 .

In the second position 140, the opening 84 is such that debris can fall out under the force of gravity. In the process, debris can slide along the sliding surface 108 .

In order to enable easy maneuvering in the second position 140 of the dirt collection container device 68, the window 176 with the see-through field of vision 178 for the operator 38 intended. As mentioned above, in the shunting area 184 this person can drive up to a corresponding container (a trough) or the like without his field of vision being completely covered by the raised dirt collection container device 68 . He has the opportunity to observe the shunting area 184. This enables precise shunting.

During the emptying process, when the closure 86 is brought into the open position 112 in the second position 140 of the dirt collection container device 68 , an operator can observe this via the window 176 .

It is also favorable if the operator can observe the base area 185 in front of the second end 48 through the window 176 or can observe a projection of the closure 86 (of the flap 88) onto the base 22 (at least partially). This results in an optimized emptying operation.

In the second position 140 of the dirt collection container device 68 is a lower edge of the dirt collection container device 68 at the closure 86 at the distance H ₁ to the floor 22 on which the sweeper 10 stands. Depending on the design of the sweeping machine 10, this distance H ₁ is in particular more than 1 m, or more than 1.25 m, or more than 1.45 m, or more than 1.95 m. The figures given are typical heights of containers (Hopper).

In a specific embodiment, this distance H ₁ is in particular 1.40 m or more.

The window 176 is then preferably at a height X (cf 3 ) above the ground on which sweeper 10 is standing such that shutter 86 is still observable. This height X is, for example, related to a central region of the window 176. X is then of the same order of magnitude as the distance H ₁ just mentioned, and in particular 1.40 m or more.

In particular, it is provided that in the second position 140 of the dirt collection container device 68, a center of the window 176 is at least approximately at the same height as the closure 86. At least approximately means that deviations of ±25 cm in the direction of the distance from the floor which the sweeper 10 stands up, may be present. The center of the window 176 is related to the direction of the distance between the dirt collection container device 68 and the body 72 at the window 176.

After completion of the emptying process, the closure 86 in particular is closed again (brought into the closed position 110), and the operator 38 drives the sweeper 10 away from the container, for example, in such a way that he can bring the dirt collection container device 68 back into the first position 124. A sweeping operation is then again made possible.

The sweeper 10 is easy to assemble. The base plate 58 with its threads 66 forms a mounting plate for several components of the sweeper 10 and in particular for the roller brush holder 60 on a second side and for the side brush 64. Other components, which are arranged in the interior 40, can also be attached to the base plate 58 mount and thereby on a first side of the base plate, which is opposite the second side.

The base plate 58 forms a counterweight, in particular in the second position 140 of the dirt collection container device 68, in order to prevent the sweeping machine 10 from tipping over.

In a typical embodiment, the dirt collection container assembly 68 can hold a dirt mass on the order of 180 kg. A base plate 58, which has a mass of 50 kg, for example, lowers the center of gravity of the sweeper 10 accordingly and forms the aforementioned counterweight.

In addition, the base plate 58 increases the traction of the sweeper 10.

The filter holder 164 (the filter box) is fixedly arranged on the chassis 12 during sweeping operation, including the transition from the first position 124 to the second position 140 and vice versa.

However, it can be pivoted relative to the chassis 12 for maintenance purposes, for example ( 12 , 13 ), in particular to allow access via the opening 54 to the interior 40 below the seat 34.

Another embodiment of a self-propelled sweeper according to the invention, which in the 14 and 15 shown and denoted by 190 is basically the same design as the sweeper 10. The sweeper 90 differs from the sweeper 10 in the design of the dirt collection container device 68, which corresponds to in 14 is denoted by 192. The same components as in the sweeper 10 are denoted by the same reference numerals.

The dirt collection container device 192 is held on the corresponding chassis 12 via a holding device corresponding to the holding device 70 . A first position 124 is provided for coupling sweepings and a second position 140, the second position for the dirt collection container device 192 being a high-dump position.

The dirt collection container device 192 differs from the dirt collection container device 68 in that emptying outside of the second position 140 is also possible.

In one embodiment, the debris collection container assembly 192 includes a first debris collection container 194 and a second debris collection container 196. These are arranged side-by-side. In particular, the first dirt collection container 194 and the second dirt collection container 196 are each provided with rollers 198 . The first dirt collection container 194 and the second dirt collection container 196 can also be used in the first position 124 (cf 14 , 15 ) can be removed and, in particular, moved out to the rear (“low dump”) without the holding device 70 having to be moved.

Furthermore, the first dirt collection container 194 and the second dirt collection container 196 can be fixed to the holding device 70 in such a way that a transition into the second position 140 for high emptying is possible.

Due to the division into the first dirt collection container 194 and the second dirt collection container 196, each full dirt collection container 194, 196 has a lower mass than if only one dirt collection container is present. This enables manual removal, for example.

The sweeper 190 has a high emptying function (“high dump”) via the dirt collection container device 192, and an emptying function in which the dirt collection containers 194, 196 can also be removed in the first position 124 (“low dump”).

Otherwise, sweeper 190 functions as described above with respect to sweeper 10 .

Another embodiment of a sweeper according to the invention, which 16 shown schematically and denoted by 202, comprises a chassis 204 with a first end 206 and a second end 208. A forward travel direction 209 runs in a direction from the first end 206 to the second end 208. A dirt collecting container device 210 can be pivoted via a holding device 212 arranged to the chassis 204.

The holding device 212 is arranged in the area of the second end 208 .

Relative to the viewing direction of an operator who is positioned and in particular seated in a passenger area 214, the dirt collection container device 210 is in front of the operator 216. In the sweeping machine 10, the dirt collection container device 68 is behind the operator.

In normal sweeping operation for filling the dirt collection container device 210, it is in a first position relative to the chassis 204.

In 16 a second position 218 is shown which is a high dump position.

The fixture 212 includes a window 220 that provides a see-through field of view 222 for the operator 216 . As a result, the operator can see a maneuvering area 224 which is in front of the second end 208 .

Sweeper 10 is driven off in maneuvering area 184, for example on a container, in the reverse direction 182.

The sweeper 202 starts moving in the forward direction 209.

Basically, the sweeper 202 works the same as the sweeper 10.

In the first position (not shown in the drawings) a sweeping operation takes place and the dirt collection container device 210 is filled with sweepings.

The dirt collection container device 210 is then moved to the second position 218 ( 16 ) brought.

An operator can then drive in the shunting area 224 , for example, on a container for emptying the dirt collection container device 210 .

Through the window 220 he has a visual access to this shunting area 224.

Reference List

10

Sweeper (first embodiment)

12

chassis

14

rear wheel setup

16

front wheel setup

17

forward driving direction

18a

Right rear wheel

18b

Left rear wheel

20

wheel axle

22

floor

24

swivel castor

26

steering device

28

steering column

30

steering wheel

32

passenger area

34

Seat

36

foot pedal

38

operator

40

inner space

42

traction drive

44

opening

46

First ending

48

second ending

50

longitudinal direction

52

roller brush

54

axis of rotation

56

apron facility

58

base plate

60

roller brush holder

62

height direction

64

side brush

66

thread

68

dirt collection container device

70

holding device

72

body

74

height direction

76

swivel bearing

78

pivot axis

80a

First strut

80b

Second strut

82

dirt collection box

84

opening

86

closure

88

flap

90

swivel bearing

92

pivot axis

93

wave

94

bulge

96

First area

98

second area

100

first wall

102

second wall

104

obtuse angle

106

inner space

108

sliding surface

110

locking position

112

open position

114

drive

116

strut

116a

first part

116b

second part

117a

First screw

117b

Second screw

118

sensor device

119a

First row of screw holes

119b

Second row of screw holes

120

admission

122

insertion direction

124

First position

126

bottom

128

acute angle

130

arrow

132

free space

134

wall

136

poetry

138

direction of rotation

140

second position

142

direction

144

bottom

146

rear end

148

drive

150a

groove

150b

groove

152

suction unit device

154

fan

156

connection

158

mating connection

160

third area

162

filter device

164

filter holder

165

filter box

166

connection

168

swivel bearing

170

pivot axis

172

direction

174

position

176

window

178

see-through field of view

180

direction

182

reverse direction

184

shunting area

185

floor area

186

top

187

projection

188

suction flow

190

Sweeper (Second Embodiment)

192

dirt collection container device

194

First dirt collection container

196

Second dirt collection container

198

roll

202

Sweeper (Third Embodiment)

204

chassis

206

First ending

208

second ending

209

forward driving direction

210

dirt collection container device

212

holding device

214

passenger area

216

operator

218

second position

220

window

222

see-through field of view

224

shunting area

H1

Height distance of the opening 84 to the ground

B

Width of window 176

H2

Window height 176

X

Window height 176 above ground

QUOTES INCLUDED IN DESCRIPTION

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

Patent Literature Cited

• DE 102015105587 A1 [0003]
• US3744653 [0004]
• US5193382 [0005]
• WO 2006/121783 A1 [0006]
• FR 2255841 [0007]

Claims (31)

Self-propelled sweeper, comprising a chassis (12; 204), a passenger area (32; 214) which is arranged on the chassis (12; 204), at least one brush roller (52) and a dirt collection container device (68; 210) which has a Holding device (70; 212) is arranged so that it can move relative to the chassis (12; 204), the dirt collection container device (68; 210) having at least a first position (124) and a second position (140) relative to the chassis (12; 204), and wherein during operation of the sweeper in the first position (124) sweepings are fed through the at least one sweeping roller (52) to the dirt collection container device (68; 210) and in the second position (140) the dirt collection container device (68; 210) can be emptied up , characterized in that the holding device (70; 212) and/or the dirt collecting container device (68; 210) has a window (176) which in the second position (140) of the dirt collecting container direction (68; 210) providing a see-through field of view (178) to an operator (38; 216) properly positioned at the passenger area (32; 214). Self-propelled sweeper after claim 1 , characterized in that the chassis (12; 204) has a first end (46; 206) and a second end (48; 208), the dirt collection container device (68; 210) being arranged in the region of the second end (48; 208). and that the see-through field of view (178) is arranged and configured such that, in the second position (140) of the dirt collection container device (68; 210), a see-through through the window (176) in a direction from the first end (46; 206) to the second end (48; 208). Self-propelled sweeper after claim 1 or 2 , characterized in that the chassis (12; 204) has a first end (46; 206) and a second end (48; 208), the dirt collection container device (68; 210) being arranged in the region of the second end (48; 208). and that the sweeper is assigned a shunting area (184; 224) which is in front of the second end (48; 208), the second end (48; 208) being between the shunting area (184; 224) and the passenger area (32 ; 214) and wherein an operator (38; 216) properly positioned at the passenger area (32; 214) has a see-through field of view (178) through the window (176) of at least one of: - to the shunting area (184; 224); - on a bottom area (185) in front of the second end (48; 208); - On a projection of a closure (86) of the dirt collection container device (68; 210) on a floor (22) on which the sweeper stands; - On an openable closure (86) of the dirt collection container device (68; 210). Self-propelled sweeper according to one of the preceding claims, characterized by at least one of the following: - the window (176) is limited by struts (80a, 80b) of the holding device (70; 212); - The window (176) is bounded by the dirt collection container means (68; 210); - The window (176) is delimited by a body (72) which is arranged on the chassis (12); - A highest point of the body (72) does not protrude beyond a seat (34) which is arranged in the passenger area (32; 214); - The window (176) has a material-free area; - The window (176) has at least approximately a square or rectangular shape; - The window (176) has a width (B) of at least 50 cm; - The window (176) has a height (H ₂ ) of at least 40 cm; - The window (176) has an area which, in the second position (140) of the dirt collection container device (68), is at the same height (H ₁ ) above a floor (22) as a closure (86) of the dirt collection container device (68) . Self-propelled sweeper according to one of the preceding claims, characterized in that the holding device (70; 212) is arranged such that it can be pivoted relative to the chassis (12; 204), in particular with at least one of the following: - a pivot axis (78) of the holding device (70; 212 ) is parallel to a wheel axle (20); - The pivot axis (78) of the holding device (70; 212) is parallel to an axis of rotation (54) of the at least one brush roller (52); - The pivot axis (78) of the holding device (70; 212) is transverse and in particular perpendicular to a longitudinal axis (50) of the chassis (12; 204); - in the second position (140) of the dirt collection container device (68; 210), this is spaced apart from the first position (124) in a vertical direction (74) of the chassis (12; 204), and the pivot axis (78) of the holding device (70); 212) is oriented transversely and in particular perpendicularly to the height direction (74); - A drive (148) for positioning the dirt collecting container device (68; 210). Self-propelled sweeper according to one of the preceding claims, characterized in that in the first position (124) the dirt collecting container means (68; 210) so is arranged such that sweepings are conveyed by the sweeping roller directly into the dirt collection container device (68; 210) and in particular that there is a throw-over arrangement between the at least one sweeping roller (52) and the dirt collecting container device (68; 210). Self-propelled sweeping machine according to one of the preceding claims, characterized in that a receptacle (120) is arranged on the chassis (12) which, in the first position (124), receives at least a partial area of the dirt collecting container device (68), and in particular that the receptacle ( 120) is designed as a slide-in receptacle. Self-propelled sweeper according to one of the preceding claims, characterized by a suction unit device (152) for generating a suction flow (188) and a filter holder (164) with a filter device (162). Self-propelled sweeper after claim 8 , characterized in that the suction flow (188) acts on an interior (106) of the dirt collecting container device (68). Self-propelled sweeper after claim 8 or 9 , characterized in that the dirt collection container device (68) has at least one connection (158) for the suction flow (188), which is fluidly connected to the suction unit device (152), the at least one connection (158) in particular in a direction based on the force of gravity (g) in the vertical direction (74) is spaced apart from an opening (84) through which sweepings are coupled into the dirt collection container device (68). Self-propelled sweeper according to one of Claims 8 until 10 , characterized in that the filter holder (164) is held firmly on the chassis (12) in relation to an emptying process in which the dirt collection container device (68) is brought from the first position (124) to the second position (140). Self-propelled sweeper according to one of Claims 8 until 11 , characterized in that the filter holder (164) is movable and in particular pivotable to the chassis (12) for a maintenance operation. Self-propelled sweeper after claim 12 characterized by at least one of the following: - a pivot axis (170) for pivoting the filter holder (164) to the chassis (12) is parallel or coaxial to a pivot axis (78) of the holding device (70); - The filter holder (164) is relative to a floor (22) on which the sweeper stands, pivoted upwards away; - The filter holder (164) can be connected to the holding device (70) and/or the dirt collecting container device (68) in such a way that a pivoting movement of the filter holder (164) is driven by a pivoting movement of the holding device (70); - The filter holder (164) has a pivoting position in which access to an interior space (40) of the sweeping machine is made possible from a rear side or front side of the sweeping machine. Self-propelled sweeper according to one of Claims 8 until 13 , characterized in that the filter holder (164) is designed as a filter box (165) or is arranged on/in a filter box (165). Self-propelled sweeper according to one of the preceding claims, characterized in that the dirt collection container device (68) has at least one opening (84) for coupling and uncoupling sweepings, and in that the at least one opening (84) is assigned a closure (86), in particular with at least one of the following: - in the second position (140), the at least one opening (84) is located on an underside (126) of the dirt collecting container device (68) in relation to the direction of gravity (g); - In the first position (124), the at least one opening (84) is transverse to an underside (144) of the dirt collecting container device (68) in relation to the direction of gravity (g); - The closure (86) is or comprises at least one flap (88) and in particular a pivotable flap; - the closure (86) and/or the at least one opening (84) lies in the see-through field of view (178). Self-propelled sweeper after claim 15 , characterized in that in the first position (124) of the dirt collection container device (68) the closure (86) is open or is opened, in particular with at least one of the following: - the closure (86) is a drive (114) for opening and associated with closing; - Upon reaching the first position (124) of the dirt collection container device (68), the closure (86) is automatically opened; - When moving out of the first position (124) of the dirt collecting container device (68), the closure (86) is automatically closed; - A sensor device (118) is provided, which monitors an opening state of the closure (86); - A transition from the first position (124) of Dirt collection container device (68) in the second position (140) is locked when the closure (86) is not closed. Self-propelled sweeper after Claim 16 , characterized in that the drive (114) acts on the closure (86) via a multi-part strut (116), in particular with at least one of the following: - respective parts (116a, 116b) of the strut (116) are secured by at least one screw (117a, 117b) interconnected; - A screw connection is assigned a plurality of rows of screw holes (119a, 119b), not all of the screw holes being occupied. Self-propelled sweeper according to one of Claims 15 until 17 , characterized in that the closure (86) is held pivotably on the dirt collection container device (68) via a shaft (93), with at least one of the following: - the closure (86) has a sliding surface (108) for sweepings, which Interior (106) of the dirt collection container device (68) faces; - The sliding surface (108) covers the shaft (93); - The sliding surface (108) is designed to be elastic or resilient; - The sliding surface (108) is made of a sheet metal material. Self-propelled sweeper after Claim 18 , characterized in that the dirt collecting container device (68) has a bulge (94) in which the shaft (93) is arranged. Self-propelled sweeper according to the preamble of claim 1 or one of the preceding claims, characterized by a base plate (58) which is arranged on the chassis (12), the at least one brush roller (52) being mounted on the base plate (58), and the base plate (58) having an interior space (40) of the sweeper covers dust-tight. Self-propelled sweeper claim 20 , characterized in that the base plate (58) is provided with a plurality of threads (66). Self-propelled sweeper after claim 20 or 21 , characterized in that at least one side brush (64) is mounted on the base plate (58). Self-propelled sweeper according to one of claims 20 until 22 , characterized by at least one of the following: - the base plate (58) is made of steel; - The base plate (58) has a mass of at least 40 kg and in particular at least 45 kg and in particular at least 50 kg; - The base plate (58) has a thickness of at least 6 mm and in particular at least 7 mm and in particular at least 8 mm. Self-propelled sweeper according to one of the preceding claims, characterized by a design as a ride-on machine, the passenger area (32; 214) comprising an operator's seat (34), and in particular a seated operator in the second position (140) of the dirt collecting container device (68; 210) through the window (176) has the see-through field of view (178). Self-propelled sweeper according to one of the preceding claims, characterized by at least one of the following: - a travel drive (42); - A steering device (26) arranged in the passenger area (32; 214). Self-propelled sweeper according to one of the preceding claims, characterized by at least one of the following: - the at least one brush roller (52) is arranged on the chassis (12); - The at least one sweeping roller (52) is a main sweeping roller; - The at least one sweeping roller (52) is arranged below the chassis (12); - The at least one sweeping roller (52) is assigned a rotary drive; - the at least one sweeping roller (52) is positioned between a front wheel assembly (16) and a rear wheel assembly (14); - At least one side brush (64) is provided, which is arranged and designed in particular in such a way that in a sweeping operation, debris is fed to the at least one brush roller (52) via the at least one side brush (64). Method for producing a sweeper, in particular a sweeper according to one of the preceding claims, in which a base plate (58) is produced, at least one brush roller (52) is mounted on the base plate (58), and the base plate (58) is mounted on a chassis device is, wherein the base plate (58) forms a dust-tight seal to an interior (40) of the sweeper. procedure after Claim 27 , characterized in that the base plate (58) is provided with a plurality of threads (66). procedure after Claim 27 or 28 , characterized in that the at least one side brush (64) is mounted on the base plate (58). Procedure according to one of claims 27 until 29 , characterized by at least one of the following: - the base plate (58) is made of steel; - The base plate (58) has a mass of at least 40 kg and in particular at least 45 kg and in particular at least 50 kg; - The base plate (58) has a thickness of at least 6 mm and in particular at least 7 mm and in particular at least 8 mm. Procedure according to one of claims 27 until 30 , characterized in that components of the sweeper are mounted on the base plate (58), which are positioned in the interior (40) of the sweeper with in particular at least one of the following: - the components protrude beyond a first side of the base plate (58) and the at least one sweeping roller (52) extends beyond a second side, the second side opposite the first side; - The components include elements of a traction drive (42) and/or a suction unit device (152) and/or a drive for the at least one brush roller (52).

Images