Sweeping machine with height adjusting device

Abstract

A sweeper comprises a chassis (12); a rear wheel arrangement (20) and a front wheel arrangement (22) arranged on the chassis (12) and defining a placement plane (26) of the sweeper at a surface (24) to be cleaned; a push bow (42) arranged on the chassis (12); a cleaning object container (108) placed on the chassis (12); at least one main cleaning roller (54) which is arranged on the chassis (12) so as to be rotatable about an axis of rotation (56); a height adjustment device (72), by means of which a height position of the axis of rotation (56) of the at least one main cleaning roller (54) relative to the placement plane (26) can be adjusted; and a handle (84) which can be pivoted relative to the chassis (12) and which is mechanically coupled to a height adjustment device (72), by means of which an operator can set the height position of the axis of rotation (56) relative to the placement plane (26) in a lockable manner, characterized in that the handle (84) has an end position (98) in which the at least one main cleaning roller (54) is spaced from the placement plane (26).

Description

Technical Field

[0001] The present invention relates to a sweeper, which comprises: a chassis; a rear wheel device and a front wheel device, which are arranged on the chassis and define a placement plane of the sweeper formed by a surface to be cleaned; a push bow, which is arranged on the chassis; a cleaning material container, which is placed on the chassis; at least one main sweeping roller, which is arranged on the chassis in a manner that allows it to rotate around a rotation axis; a height adjustment device, by which the height positioning of the rotation axis of at least one main sweeping roller relative to the placement plane can be adjusted; and a handle, which can be pivoted relative to the chassis and is mechanically connected to the height adjustment device, and an operator can adjust the height positioning of the rotation axis relative to the placement plane in a lockable manner through the handle. Background Art

[0002] US 3,039,124 A discloses a sweeping device having a frame.

[0003] EP 2 497 355 A2 discloses a sweeping device having an adjustable brush system.

[0004] DE 12 25 684 A discloses a sweeping machine having a dust collector and an adjustably mounted sweeping roller.

[0005] DE 10 2014 006 391 A1 discloses a sweeping machine with an undercarriage, wherein the undercarriage is pivotably mounted on the wheel axis, so that in operating mode the height of the roller axis relative to the wheel axis can be manually changed by pivoting the undercarriage.

[0006] WO 2008 / 022699 A2 discloses a push sweeper having a housing which covers a rotatable sweeping roller which can be moved along the ground by means of two rotatably mounted running wheels, wherein the sweeping roller can be driven in rotation by at least one running wheel and has a U-shaped displacement bow.

[0007] CH 489 235 A discloses a hand-propelled garbage collector and floor cleaner having a rotating brush.

[0008] According to EP 1 531 202 B1, a sweeping machine is known, which has a housing, a cleaning material container and a sweeping roller covered by the housing, which is supported rotatably about a rotation axis on a height adjustment device. The height adjustment device can be swiveled about a pivot axis oriented parallel to the rotation axis by means of an adjustment mechanism, wherein the adjustment mechanism has a pivot arm that can be swiveled about the pivot axis, which extends from the housing and can be releasably locked in different pivot positions, and wherein the height adjustment device includes two support arms that can be swiveled about the pivot axis, on which the sweeping roller is rotatably supported. The support arms are rigidly connected to each other via a crossbeam, wherein the pivot arm is firmly mounted on the crossbeam and protrudes beyond the crossbeam in the radial direction with respect to the pivot axis.

[0009] DE 10 2018 104 749 A1 discloses a sweeping machine comprising a chassis, at least one sweeping brush arranged on the chassis, and a height adjustment device associated with the at least one sweeping brush, by which the height positioning of the at least one sweeping brush relative to the chassis can be adjusted.

[0010] DE 10 2018 104 744 A1 discloses a sweeping machine comprising a chassis, a rear wheel arrangement arranged on the chassis, and a push bow arranged pivotably on the chassis. A footrest area is provided, which is arranged on the chassis in the area of ​​the rear wheel arrangement, wherein, starting from the sweeping machine placed on the base as required, the sweeping machine as a whole can be arranged in a parking position away from the base while being supported on the base by the rear wheel arrangement by an operator stepping on a footrest. Summary of the invention

[0011] The object of the present invention is to provide a sweeping machine of the aforementioned type which can be operated in a simple manner and has a long service life.

[0012] This object is achieved according to the invention in the aforementioned sweeping machine in that the handle has an end position in which the at least one main sweeping roller is spaced apart from the support plane.

[0013] In principle, the at least one main cleaning roller is mechanically loaded when it acts on the surface to be cleaned. The bristles of the main cleaning roller bend.

[0014] If permanent mechanical loads are present outside the cleaning mode, this can lead to a shortened service life of the corresponding main cleaning roller.

[0015] In the solution according to the invention, the handle has an end position in which the at least one main cleaning roller is lifted off the support surface, so that there is no contact and therefore no mechanical load.

[0016] Furthermore, such an end position with a raised placement surface is also advantageous for a pure travel mode of the sweeping machine (without cleaning function), for example to be able to travel over surfaces that do not need to be cleaned, or for parking or storing the sweeping machine.

[0017] By means of a corresponding end position of the handle, in which the at least one main sweeping roller is lifted from the placement surface, the sweeping machine can be stored upright on the ground with its placement surface while maintaining the at least one main sweeping roller.

[0018] Since the at least one main cleaning roller is lifted off the support surface when the handle is in the end position, the operator can easily and intuitively realize the corresponding position.

[0019] Advantageously, at least one of the following is provided:

[0020] - the pivoting movement of the handle out of the end position reduces the height distance of the axis of rotation relative to the placement plane;

[0021] - the pivoting movement of the handle out of the end position increases the pressing force of the at least one main cleaning roller against the surface to be cleaned;

[0022] - there is exactly one end position in which at least one main sweeping roller is spaced apart relative to the resting plane;

[0023] - at each prescribed position of the handle, except the end position, at least one main cleaning roller contacts the placement plane;

[0024] - A pivoting movement of the handle out of an end position in which the at least one main cleaning roller is spaced apart relative to the resting plane is away from the resting plane.

[0025] This results in a structurally simple structure with optimized operability.

[0026] Furthermore, it is advantageous if at least one of the following is provided:

[0027] - the pivot axis for the pivotable mobility of the handle relative to the chassis is parallel to the axis of rotation of the at least one main sweeping roller;

[0028] - the pivot axis for the pivotable movement of the handle relative to the chassis is parallel to the wheel axis of the rear wheel arrangement;

[0029] - a pivot axis for the pivotable movement of the handle relative to the chassis which is transverse and in particular perpendicular to the direction of travel of the sweeping machine;

[0030] The pivot axis for the pivotable movement of the handle relative to the chassis is parallel to the pivot axis of the push rod, wherein the push rod is pivotable relative to the chassis.

[0031] This results in a simple operability of the height adjustability of the at least one main cleaning roller relative to the placement plane.

[0032] In one embodiment, at least one stop is provided, and an element of the handle and / or the height adjustment device engages the stop in an end position in which at least one main cleaning roller is spaced apart from the placement plane. Thus, in particular, a pivoting of the handle beyond this end position can be prevented in a simple manner.

[0033] In one embodiment, a track device is assigned to the handle, which in particular comprises a circular track when the handle can be pivoted relative to the chassis. On the track device, continuous or preferably discrete positioning of the handle can be provided, which corresponds to the pivot position. The height positioning of at least one main cleaning roller relative to the placement plane is also provided.

[0034] In one structural embodiment, the height adjustment device comprises a swing device, which is placed on the chassis in a manner that it can rotate around the rotation axis, wherein at least one main cleaning roller is held on the swing device in a manner that it can rotate around the rotation axis. In conjunction with this, reference is made to EP 1 531 202 B1, which is explicitly cited here. The height adjustment device can thus be realized in a structurally simple manner. In addition, the handle can be mechanically connected to the height adjustment device in a simple manner. In particular, the height positioning can then be directly adjusted and specified by the handle.

[0035] Advantageously, at least one of the following is present:

[0036] - the axis of rotation of the oscillating device is spaced apart from the axis of rotation of at least one main sweeping roller;

[0037] The rotation axis of the oscillating device and the rotation axis of the at least one main sweeping roller are oriented parallel to one another.

[0038] This makes it possible to adjust the height position in a simple manner by rotating the pivot device.

[0039] It is also advantageous if the handle is connected to the pivoting device and in particular has at least one of the following:

[0040] - The handle is rigidly connected to the swing device;

[0041] The handle is connected to the pivot device eccentrically with respect to the pivot axis of the pivot device.

[0042] The pivotability of the handle relative to the chassis can be realized in a simple manner by the rotatability of the swing device relative to the chassis. The pivoting position of the handle relative to the chassis directly corresponds to a determined height position of at least one main cleaning roller (and its axis of rotation) relative to the placement plane. This achieves a simple structural design for height adjustability.

[0043] In one embodiment, the oscillating device comprises a first region, a second region and a third region, wherein the second region is located between the first region and the third region, and the oscillating device is held on the chassis in the second region in a manner that allows rotation about a rotation axis, wherein at least one main cleaning roller is held in the first region, and wherein the handle is connected to the oscillating device in the third region. In this way, a height adjustment device is obtained in a structurally simple manner, which can adjust and regulate the height position of at least one main cleaning roller relative to the placement plane directly by pivoting the handle.

[0044] In one embodiment, a plurality of discrete positions are assigned to the handle, wherein in particular a plurality of discrete positions are arranged on a rail arrangement and at these discrete positions a pivoting movement of the handle can be provided, wherein a discrete position is assigned to a specific height position of the axis of rotation relative to the placement plane. This results in simple and intuitive operability.

[0045] In a structurally advantageous embodiment, the handle comprises a form-fitting element for defining the pivoting position of the handle relative to the chassis and in particular for defining the height position of the axis of rotation of the at least one main sweeping roller relative to the placement plane. In this way, the corresponding height position of the at least one main sweeping roller relative to the placement plane can be adjusted and defined in a simple manner by means of the handle.

[0046] It can be provided that the form-fitting element is mounted on the rod in a movable and in particular linearly displaceable manner, wherein the handle is mechanically connected to the height adjustment device via the rod. This results in a structurally simple design of the height adjustability, including the provision of a selected height setting.

[0047] Advantageously, at least one of the following is present:

[0048] - the form-fitting element is designed as a sleeve which is placed in particular on the rod;

[0049] - one or more mating elements of a form-fitting element for a form-fitting connection are arranged on a rail arrangement on which the handle can be moved, wherein in the case of the form-fitting connection a pivotable movement of the handle relative to the chassis is prohibited;

[0050] The form-locking element is spring-loaded by a spring device, wherein, in order to release the form-locking connection, the operator must overcome the spring force of the spring device by moving the form-locking element.

[0051] By configuring the form-locking element as a sleeve, an operator can move it in a simple manner in order in particular to release the form-locking connection and to pivot the handle (and thus to perform a height adjustment on the at least one main sweeping roller).

[0052] The height positioning of at least one main cleaning roller can be adjusted and specified in a simple manner by the track device. This can be implemented in an intuitive manner for the operator.

[0053] The spring device provides a certain height position in the normal state, when the form-fitting element is active and there is no operating force. For adjustment, the operator must overcome the spring force of the spring device and in particular move the form-fitting element. This, for example, largely prevents accidental adjustment.

[0054] In one embodiment, the chassis has a first area and a second area, the height adjustment device, at least one main sweeping roller and the handle are arranged on the first area, and the cleaning material container is held on the second area, wherein the second area follows the first area in the longitudinal direction of the chassis. This results in a structurally advantageous design for the sweeping machine. In particular, it can be divided into a cleaning material container area (second area) and a first area on which the functional components of the sweeping machine are arranged.

[0055] Advantageously, at least one main cleaning roller is positioned between the rear wheels of the rear wheel arrangement on the chassis. In the cleaning process, the cleaned material swept can be introduced into the cleaned material container by at least one main cleaning roller.

[0056] In an advantageous embodiment, a storage device is provided, which has a storage surface for one or more objects, wherein the storage device is held by the chassis and is parallel to the storage surface or tilted at a maximum of 10° relative to the storage surface. In this way, the sweeper can carry objects (e.g. buckets) in cleaning mode or in travel mode (lifted by at least one sweeping roller). Objects can be stored on the sweeper when it is parked.

[0057] In one embodiment, a suction blower device is provided, by which a negative pressure flow can be applied to the inner space of the cleaning material container, and a filter device for the negative pressure flow is provided. In principle, during the cleaning process, dust is raised due to the action of at least one cleaning roller on the ground to be cleaned. This may cause a burden on the environment. A considerable part of the dust can be sucked away by the exhaust fan device, thereby reducing the burden on the environment.

[0058] The sweeper is particularly configured as a hand-guided sweeper, which can be guided on the surface to be cleaned by pushing the bow. In one embodiment, no independent motor is provided for at least one main sweeping roller. When the operator guides the sweeper on the surface to be cleaned and at least one main sweeping roller acts on the surface to be cleaned, this causes the rotation of at least one main sweeping roller around the axis of rotation. Alternatively, it can also be provided that the independent motor for at least one main sweeping roller rotates it around the axis of rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] The following description of the preferred embodiments is used to further illustrate the present invention in conjunction with the accompanying drawings. In the drawings:

[0060] Figure 1 A perspective view showing a first embodiment of a sweeping machine according to the present invention;

[0061] Figure 2 Show according to Figure 1 A rear view of the sweeper with the main sweeping roller raised;

[0062] Figure 3 according to Figure 2 Along line 3-3, the Figure 2 A cross-sectional view of a sweeping machine;

[0063] Figure 4 Shown with Figure 2 Same view with the main sweeping roller lowered;

[0064] Figure 5 according to Figure 4 A cross-sectional view of the sweeper is shown along line 5-5;

[0065] Figure 6 A perspective view showing a second embodiment of a sweeping machine according to the present invention;

[0066] Figure 7 Show according to Figure 6 A cross-sectional view of a sweeping machine;

[0067] Figure 8 Show according to Figure 7 A magnified image of area A. DETAILED DESCRIPTION

[0068] According to the present invention, the cleaning machine (which Figures 1 to 5 A first embodiment (shown in FIG. 1 and designated by 10) includes a chassis 12. The chassis 12 forms the body or base of the sweeping machine 10 and holds (directly or indirectly) the components of the sweeping machine 10. The chassis 12 is responsible for the mechanical stability of the sweeping machine 10 and for holding its components.

[0069] The chassis 12 has a front end 14 and a rear end 16. A longitudinal axis 18 of the chassis 12 (and thus also of the sweeping machine 10) extends between the front end 14 and the rear end 16.

[0070] The sweeper 10 is erected on a surface 24 to be cleaned (see FIG. 2 ) in a manner that it can travel on the rear wheel device 20 and the front wheel device 22. Figure 3 The rear wheel device 20 and the front wheel device 22 define a placement plane 26 of the sweeper 10 on the surface to be cleaned 24. If the surface to be cleaned 24 is flat, the placement plane 26 coincides with the surface to be cleaned.

[0071] The rear wheel arrangement 20 is arranged on the chassis 12 in the region of the rear end 16. The rear wheel arrangement 20 has a right rear wheel 30 and a left rear wheel 32 with respect to the forward direction 28 of the sweeping machine 10. The right rear wheel 30 and the left rear wheel 32 are spaced apart from one another in a transverse direction 34. The transverse direction 34 is perpendicular to the longitudinal axis 18 and parallel to the resting plane 26.

[0072] The right rear wheel 30 and the left rear wheel 32 are positioned on the chassis 12 in a manner that they can rotate about a common wheel axis 36. The wheel axis 36 is parallel to the transverse direction 34. It is perpendicular to the longitudinal axis 18. It is perpendicular to the forward direction 28. The wheel axis 36 is parallel to the resting plane 26.

[0073] The right rear wheel 30 and the left rear wheel 32 are arranged laterally on the chassis 12. In one embodiment, they protrude to the rear end 16 (see Figure 1 ).

[0074] In one embodiment, the front wheel arrangement 22 is or comprises a roller 38 , in particular a steering roller. The front wheel arrangement 22 with the (at least one) roller 38 is arranged in the region of the front end 14 .

[0075] In one embodiment, the roller 38 is located on the center plane 40 of the chassis 12 (see Figure 2 ). The center plane 40 is perpendicular to the resting plane 26. The transverse direction 34 is perpendicular to the center plane 40. The longitudinal axis 18 is located in the center plane 40. The center plane 40 is a plane centered between the right rear wheel 30 and the left rear wheel 32.

[0076] The roller 38 can rotate about a roller axis. In the forward direction 28 of the sweeper 10, the roller axis is parallel to the wheel axis 36. The wheel axis 36 is a fixed axis with respect to the chassis 12. When the roller 38 is designed as a steering roller, the attitude of the roller axis relative to the chassis 12 depends on the position of the roller 38.

[0077] The roller axis of the roller 38 is parallel to the support plane 26 .

[0078] The sweeping machine 10 comprises a push rod 42 which is arranged on the chassis in the region of the rear end 16, in particular in the region of the rear wheel arrangement 20. An operator standing on the floor 24 to be cleaned can guide and in particular push the sweeping machine 10 over the floor to be cleaned by means of the push rod 42.

[0079] In one embodiment, the sweeping machine 10 is not provided with an electric travel drive, and the travel motion is driven by the operator (through the operator's force).

[0080] In one embodiment, the push rod 42 can be pivoted relative to the chassis 12 about a pivot axis 44. In this case, the defined pivot position of the push rod 42 relative to the chassis 12 can be locked steplessly or in stages. Thus, on the one hand, the push rod 42 can be pivoted for the storage of the sweeping machine 10 in such a way that the height of the sweeping machine 10 in a height direction 46 perpendicular to the placement plane 26 is minimized, for example, does not protrude beyond the upper side of the sweeping machine 10.

[0081] Due to the pivotability of the sliding bracket 42 about the pivot axis 44 , a dimensional adjustment adapted to the operator can be carried out in the sweeping mode of the sweeping machine 10 .

[0082] The pivot axis 44 is parallel to the resting plane 26. It is perpendicular to the center plane 40. It is perpendicular to the longitudinal axis 18 of the chassis 12.

[0083] In one exemplary embodiment, the corresponding pivot bearing for the pivotable connection of the push rod 42 to the chassis 12 is arranged such that the pivot axis 44 is located above the wheel axis 36 of the rear wheel arrangement 20 in the height direction 46 .

[0084] In one embodiment, the push rod comprises a first lever region 48 which is pivotably connected to the chassis 12 in the region of the left rear wheel 32 and a spaced-apart second lever region 50 which is pivotably connected to the chassis 12 in the region of the right rear wheel 30 .

[0085] The first rod area 48 and the second rod area 50 are connected to the chassis 12 via the distal region. A third rod area 52 is provided, which connects the first rod area 48 and the second rod area 50 to each other at the proximal region. The third rod area 52 is the main gripping area for the operator to guide the sweeping machine 10 over the surface 24 to be cleaned.

[0086] On the chassis 12, a main cleaning roller 54 is arranged which can rotate about an axis of rotation 56. The main cleaning roller 54 comprises a cylindrical support 58 on which a large number of bristles are arranged.

[0087] The rotation axis 56 is parallel to the resting plane 26. It is parallel to the wheel axis 36 or to the pivot axis 44. It is perpendicular to the center plane 40. It is parallel to the transverse direction 34. The rotation axis 56 is perpendicular to the longitudinal axis 18. It is perpendicular to the direction of travel 28.

[0088] In the cleaning mode of the cleaning machine 10, the bristles of the main cleaning roller 54 act on the surface to be cleaned 24 (see Figure 5 ; Figure 5 A position of the main sweeping roller 54 is shown, in which the main sweeping roller 54 contacts the surface to be cleaned 24 with its bristles and thereby mechanically acts on the surface to be cleaned 24. This results in a corresponding deformation of the bristles, which Figure 5 Not shown for illustration purposes.)

[0089] The main cleaning roller 54 is disposed in the area of ​​the rear end 16 of the chassis 12 between the left rear wheel 32 and the right rear wheel 30 .

[0090] The swing device 60 is positioned on the chassis 12 via a pivot bearing 62. The pivot bearing 62 defines an axis of rotation 64.

[0091] The rotation axis 64 is parallel to the placement plane 26. It is parallel to the rotation axis 56. It is perpendicular to the center plane 40. It is parallel to the wheel axis 36. It is parallel to the transverse direction 34. It is perpendicular to the longitudinal axis 18.

[0092] The pivot device 60 has a first region 66, a second region 68 and a third region 70. The second region 68 is located between the first region 66 and the third region 70. The pivot device 60 is held on the chassis 12 by means of the pivot bearing 62 via the second region 68.

[0093] In a first region, the main sweeping roller 54 is held on a pivoting device 60 via corresponding roller bearings so that it can rotate about the axis of rotation 56 .

[0094] Depending on the rotational position of the pivoting device 60 about the rotational axis 64 , the rotational axis 56 of the main sweeping roller 54 is located at different heights (in the height direction 46 ) relative to the support plane 26 . This will be explained in more detail below.

[0095] The pivoting device 60 forms a height adjustment device 72 , by means of which the height position of the main sweeping roller 54 relative to the support surface 26 can be adjusted, depending on the rotational position of the pivoting device 60 about the rotational axis 64 .

[0096] It may be provided that a guide device is assigned to the pivoting device 60 in order to guide the pivoting device and thus the main cleaning roller 54 relative to the chassis 12 .

[0097] In one embodiment, the swing device includes spaced rocker elements that are interconnected and, for example, are interconnected at the third region 70. Between the spaced rocker elements, at the first region 66, the main sweeping roller 54 is positioned on a corresponding rotary bearing for rotatability about the axis of rotation 56.

[0098] The chassis 12 includes a first region 74 on which the rear end 16 is located and a second region 76 which follows the first region 74 on the longitudinal axis 18 and on which the front end 14 is located.

[0099] A housing 78 is arranged on the first region 74 and has a housing interior 80 (see Figure 3 ). The height adjustment device 72 is arranged in the housing interior space 80.

[0100] The housing 78 has a wall 82 as a boundary with respect to the second region 76 .

[0101] In the housing interior 80, in particular, a rotary bearing for the main sweeping roller 54 is also arranged, which is supported so as to be rotatable about the axis of rotation 56. Furthermore, the pivoting device 60 and the rotary bearing 62 are also arranged in the housing interior 80.

[0102] A handle 84 is provided for the operator to adjust the height of the main cleaning roller 54 relative to the placement plane 26. The handle 84 comprises a rod 86. The rod 86 is rigidly connected to the third region 70 of the swing device 60; the handle 84 is mechanically connected to the swing device 60 via the rod 86.

[0103] The handle 84 can thus be rotated or pivoted relative to the chassis 12 via the rotation axis 64 .

[0104] A rail arrangement 88 is mounted on the housing 78. The rail arrangement 88 serves to define a defined rotational position or pivot position of the handle 84 relative to the chassis 12. In addition, it indicates to the operator which rotational position the handle 84 is in relative to the chassis 12. This defined rotational position in turn corresponds to the height position of the main cleaning roller 54 (with respect to the axis of rotation 56) above the placement plane 26.

[0105] Track assembly 88 includes a circular track 90 having opposed circular track elements with a gap therebetween. Rod 86 passes through the gap.

[0106] A positive locking element 92 is arranged on the rod 86 outside the housing interior 80 . The positive locking element 92 is used to define the pivoting position (rotational position) of the handle 84 on the circular track 90 and thus also a specific rotational position of the pivot device 60 relative to the chassis 12 .

[0107] Coupling elements 94, in particular spaced discrete elements 94, are arranged on the circular track 90. ​​They correspond to the form-fitting elements 92, so that the form-fitting elements 92 can be engaged with the cooperating elements 94 in a defined discrete position, thereby preventing the handle 84 from being pivotable relative to the chassis 12. This in turn prevents the pivoting of the swivel device 60 about the axis of rotation 64. This in turn means that a defined height positioning of the main sweeping roller 54 (about its axis of rotation 56) relative to the placement plane 26 is provided.

[0108] The form-fitting element 92 is movably and, in particular, linearly displaceably guided on the rod 86 .

[0109] In one exemplary embodiment, the form-fitting element 92 is designed as a sleeve which is guided on the rod in a linearly displaceable manner.

[0110] The positive locking element 92 is connected to the spring device 96 (see Figure 5 ) is supported on the rod 86. The spring force of the spring device 96 acts in such a way that it presses the form-fitting element 92 against the housing 78, here against the rail device 88. When the form-fitting element 92 reaches a certain position relative to the mating element 94, a form fit is implemented and the handle 84 is prevented from being pivotable (in any direction).

[0111] The operator can release the positive lock between the positive locking element 92 and the mating element 94 by pulling the positive locking element 92 away from the rod 86 (away from the axis of rotation 64). To this end, he must overcome the spring force of the spring device 96. After releasing the positive lock between the positive locking element 92 and the mating element 94, he can then pivot the handle 84 relative to the chassis 12 and then adjust the height position of the main cleaning roller 54 relative to the support plane 26.

[0112] When he no longer applies force, the form-fitting element 92 can be moved again in the direction of the rail arrangement 88 and a form-fitting connection can be achieved. As described above, discrete form-fitting positions of the handle 84 are provided in particular on the rail arrangement 88 .

[0113] In this connection, reference is made to EP 1 531 202 B1, in which a corresponding elastically pretensioned handle is known.

[0114] The handle 84 can be positioned relative to the chassis 12 in a first end position 98 ( Figure 1 , 3 , 4) and a second end position (not shown) about the rotation axis 64. The first end position 98 is a position of the handle 84 in which the oscillating device 60 is positioned such that the main cleaning roller 54 is at a maximum spacing from the support plane 26 with respect to its rotation axis 56 relative to all other positions.

[0115] The second end position is a position of the handle 84 in which the pivoting device 60 and the main cleaning roller 54 are positioned in such a way that the axis of rotation 56 is at a minimum distance from the support plane 26 .

[0116] When the handle 84 is pivoted out of the first end position 98 , the distance between the axis of rotation 56 and the placement plane 26 decreases.

[0117] In one embodiment ( Figures 3 to 6 ), the handle 84 is oriented at an acute angle to the placement plane 26 with respect to the rod 86. When pivoting out of the first end position 98, the angle between the handle 84 and the placement plane 26 increases (which causes the axis of rotation 56 to fall).

[0118] In the first end position 98 and the second end position, the handle 84 can be fixed, in particular locked, relative to the chassis 12 , in particular along the rail arrangement 88 , by the engagement of the engagement element 94 with the form-fitting element 92 .

[0119] In addition, it can be provided that the first end position 98 and / or the second end position is defined by a stop 100 . When the handle 84 reaches the first end position 98 , the handle 84 and / or an element of the height adjustment device 72 contacts the stop 100 .

[0120] In one embodiment, the stop 100 is formed on the rail device 88 , for example forming a limiting wall of a slot of the rail device 88 which (in the embodiment described) predetermines a minimum pivoting angle and blocks further pivoting toward the placement plane 26 .

[0121] In a corresponding manner, a stop can also be assigned to the second end position.

[0122] The first end position 98 is designed such that, in this first end position 98 of the handle 84, the main cleaning roller 54 is spaced apart from the support plane 26. The bristles 102 of the main cleaning roller 54 are spaced apart from the support plane 26 and do not contact it.

[0123] In the first end position 98 , the main cleaning roller 54 is raised relative to the resting plane 26 .

[0124] At the first end position 98 of the handle 84 where the main cleaning roller 54 is raised, the sweeper 10 can be guided along the ground without the main cleaning roller 54 making mechanical contact with the ground. The first end position 98 of the handle 84 provides a travel mode to some extent.

[0125] Furthermore, in the first end position 98 of the handle 84, the main cleaning roller 54 can be "unloaded". Its bristles 102 do not contact the ground on which the cleaning machine 10 is arranged. They are thus not subject to deformation. They are thus unloaded in the non-operating mode, so that in principle their service life can be extended.

[0126] exist Figures 1 to 3 1 shows the traveling or storage state of such a sweeping machine 10, wherein the handle 84 is in its first end position 98, whereby the main sweeping roller 54 is spaced apart from the support plane 26. There is a spacing between the tips of the bristles 102 and the support plane 26. Figure 3 In the example, the corresponding minimum distance is identified by reference numeral 104 .

[0127] Outside the first end position 98, the main cleaning roller 54 is lowered and contacts the support surface 26 such that it contacts the surface to be cleaned 24 ( Figure 4 , 5 ).

[0128] This means that the bristles 102 bend upon contact with the floor surface 24 to be cleaned. Figure 4 and 5 The bristles 102 are not shown in the figure for illustration reasons. The bristles 102 are in contact with the surface 24 to be cleaned in a partial area so that they can act mechanically thereon.

[0129] The further the handle 84 is pivoted out of the first end position 98 (by corresponding latching of the form-fitting element 92 and the counter element 94 ), the lower the position of the axis of rotation 56 in the height direction 46 relative to the placement plane 26 .

[0130] By correspondingly adjusting the pivot positions, the properties of the surface 24 to be cleaned can be adapted, for example the contact force against the surface 24 to be cleaned can also be adjusted. Furthermore, bristle wear can be compensated by selecting suitable pivot positions.

[0131] The chassis 12 comprises a base support 106. The front wheel arrangement 22 rests directly on the base support 106. The base support 106 has a plate-like design at least in the second region 76 of the chassis 12.

[0132] A cleaning material container 108 is releasably held on the base support 106 in the second region 76 of the chassis 12 . The cleaning material container 108 is used to receive cleaning material, which is introduced into an interior space 110 of the cleaning material container 108 by means of the main cleaning roller 54 .

[0133] The cleaning material container 108 is designed as a box. It includes a wall 112 surrounding an inner space 110. When the cleaning material container 108 is placed on the chassis 12, the wall 112 is open at an end side 114 facing the housing 78. In the cleaning mode of the sweeping machine 10, the cleaning material can be input into the inner space 110 through the corresponding openings 116 of the cleaning material container 108. When the cleaning material container 108 is removed from the sweeping machine 10, the cleaning material container 108 can be emptied through the openings 116.

[0134] The wall 112 of the cleaning material container 108 includes a bottom wall 118. When the cleaning material container 108 is placed on the chassis 12, the bottom wall 118 faces the base support 106 and is particularly supported thereon.

[0135] Opposite the bottom wall 118 , the cleaning material container 108 has a top wall 120 .

[0136] The top wall 120 and the bottom wall 118 are connected by a side wall 122. The side wall has a front region 124 which is arranged at the front end 14 or faces the front end 14. Opposite the front region 124, the opening 116 is located at the cleaning material container 108.

[0137] In one embodiment, the bottom wall 118 and the top wall 120 are generally straight. The front region 124 includes a convex portion (see Figure 3 ). They serve for the form-locking positioning of the cleaning material container 108 on the chassis 12 and also for providing a cavity for the mounting elements of the front wheel arrangement 22.

[0138] The wall 82 of the housing 78 is generally straight. It is tilted at an acute angle relative to the placement plane 26. In the illustrated embodiment, the acute angle is approximately 70 °. The wall 112 matches the inclination of the wall 82 of the housing 78 at the opening 116. Thus, when the cleaning material container 108 is placed on the chassis 12, it can also be supported on the wall 82 downwardly toward the placement plane 26.

[0139] A holding device, which is designated as a whole by 126, is arranged on the chassis 12 and serves to hold the cleaning material container 108 on the chassis 12. The holding device 126 comprises walls 82 and other form-fitting elements, which ensure a corresponding support of the cleaning material container 108. In particular, lateral form-fitting elements 128 (see Figure 1 ) and the front form-fitting element 130 (see Figure 3 ), these elements prevent the cleaning material container 108 from moving out in the transverse direction 34 (lateral form-locking elements 128) and along the longitudinal axis 18 toward the front end 14 (front form-locking element 130) when the cleaning material container 108 is positioned as required on the chassis 12. The wall 82 of the housing 78 is responsible for preventing movement out toward the rear end 16.

[0140] Furthermore, the chassis 12 provides downward support with the second region 68. As already mentioned, the wall 82 also provides downward support toward the placement plane 26. The front form-fitting element 130 can also be designed in such a way that it provides downward support.

[0141] The cleaning material container 108 is positioned on the chassis 12 in such a way that it can be removed upwards, in particular without tools, in a direction opposite to the direction of the placement plane 26. It is also not necessary to loosen screws or the like in order to remove the cleaning material container.

[0142] The housing 78 has an opening 132 on the wall 82 , which is associated with the main sweeping roller 54 . Through the opening 132 , the sweeping material can be introduced into the sweeping material container 108 via the opening 116 by means of the main sweeping roller 54 .

[0143] In the first region 74 of the chassis 12 , a ramp 134 is provided in the region of the opening 132 , which ramp 134 leads from the support plane 26 to the opening 132 .

[0144] In the unloaded state, the ramp 134 is oriented at an acute angle to the support plane 26 and forms a slope towards the opening 132 for the cleaned material.

[0145] The cleaned material is dropped into the opening 132 by the main cleaning roller 54. The ramp supports this drop-in. It also constitutes a skirt or boundary surface, which roughly stops the cleaned material from being thrown below the base support 106 by the main cleaning roller 54 towards the direction of the roller 38.

[0146] In one embodiment, the ramp 134 is movable. It is movably mounted on the chassis 12 and / or has self-movability through a corresponding design made of an elastic material such as a rubber material.

[0147] In one embodiment, one or two side brushes 136 are disposed on the chassis 12. In the illustrated embodiment, one side brush 136 is disposed on each side.

[0148] The side brush is held relative to the chassis 12 by the arm 138 , in particular in a lockable, pivotable manner.

[0149] The brush holder 140 is placed on the arm 138. The round brush 142 and the corresponding bristles are placed on the brush holder 140.

[0150] In particular, the round brush is inclined at a small acute angle (eg, in the order of approximately 30°) relative to the support plane 26 .

[0151] By means of the pivotable side arms 138, the lateral position of the respective side brush 136 can be locked. The arm 138 can be swung in particular towards the chassis 12 in order to provide a space-optimized storage position for the sweeping machine 12.

[0152] A free space 144 is formed between the support surface 26 and the base support 106. The side brushes 136 have the task of transporting the cleaning material so that it can pass over the free space 144 and then can be dropped into the cleaning material container 108 through the opening 132 by means of the main cleaning roller 54.

[0153] In one exemplary embodiment, a handle 146 is arranged on the chassis 12 in the region of the front end 14 , by means of which the sweeping machine 10 can be carried.

[0154] The working principle of the sweeper 10 is as follows:

[0155] In the cleaning mode, the sweeping machine 10 is placed on the surface 24 to be cleaned via the placement plane 26. The push bow 42 is positioned so that an operator standing on the surface 24 to be cleaned can push the sweeping machine 10 over the surface 24 to be cleaned (using muscle power).

[0156] Before the cleaning mode, the main cleaning roller 54 is in a height position where it is spaced apart from the resting plane 26 and thus does not contact the surface to be cleaned 24. This is achieved by the first end position 98 of the handle 84.

[0157] Before the cleaning mode, the operator moves the handle 84 out of the first end position 98 and ensures that (the form-fitting element 92 with the corresponding mating element 94) is snapped into the desired position of the main cleaning roller 54. The prescribed corresponding positioning of the handle 84 outside the first end position 98 ensures that the main cleaning roller 54 (and its bristles 102) contacts the surface to be cleaned 24. Depending on the position of the handle 84 with respect to the axis of rotation 64 as a pivot position, the axis of rotation 86 of the main cleaning roller 54 is located at different height positions relative to the placement plane 26. This allows for a specific adaptation to the surface to be cleaned.

[0158] The operator then pushes the sweeping machine 10 over the surface to be cleaned 24. The main sweeping roller 54 can rotate about the rotation axis 56. The travel movement of the sweeping machine 10 on the surface to be cleaned 24 is used to drive the main sweeping roller 54 in rotation about the rotation axis 56. The direction of rotation is such that the sweeping material located in front of the main sweeping roller 54 on the surface to be cleaned is carried away by it, via the ramp 134 and through the opening 132 into the sweeping material container 108.

[0159] Cleaning material is collected by the cleaning machine 10 below the base support 106 and in front of the main cleaning rollers 54 .

[0160] The length of the main sweeping roller in a direction parallel to the rotation axis 56 of the chassis 12 (transverse direction 34 ) is 50%, preferably at least 70%, in particular at least 80% of the corresponding width of the chassis 12 in this region.

[0161] Through one or two side brushes 136, can first receive the cleaning material outside the "travel groove" of chassis 12 and import it into this travel groove. When sweeping machine 10 passes, main cleaning roller 54 can also collect these cleaning materials and put them into cleaning material container 108.

[0162] A "no cleaning" travel mode of the sweeper 10 is achieved by means of the height adjustment device 72, which includes a handle 84 and a first end position 98 in which the main sweeping roller 54 is spaced apart from the support plane 26, so that the bristles 102 also do not touch the support plane 26. This travel mode is used, for example, to store the sweeper or to "switch off" the sweeping function of the main sweeping roller 54 in a targeted manner. In addition, when the sweeper 10 is parked, the main sweeping roller 54 is thereby maintained, since the bristles 102 are not subjected to mechanical loads. The contact of the bristles 102 with the ground leads to bending of the bristles, which results in mechanical loads.

[0163] For the cleaning mode, the operating handle 84 can be moved out of the first end position 98 and the positioning of the main cleaning roller 54 can be adjusted by the height adjustment device 72 in order to be able to carry out an optimized cleaning process adapted to the surface 24 to be cleaned.

[0164] For example, bristle wear can also be compensated by adapting the height adjustment.

[0165] In particular, a plurality of discrete positions of the handle 84 and thus a plurality of discrete height positions of the rotation axis 56 or the placement plane 26 can be realized outside the first end position 98. In one embodiment, three or four such discrete positions are provided outside the first end position 98.

[0166] The sweeping machine 10 comprises a storage device 148. The storage device 148 is designed so that objects and in particular buckets can be placed on the sweeping machine 10 when the sweeping machine 10 is parked using the storage surface 26 and can also be transported with the sweeping machine 10 in particular when the sweeping machine 10 is moving.

[0167] In the sweeper 10 ( Figures 1 to 5 ), the storage device 148 is arranged or formed on the cleaning material container 108.

[0168] The storage device 148 includes a storage surface 150. The storage surface 150 is flat at least with respect to the envelope surface. This will be further described below.

[0169] The storage surface has a width B of at least 20 cm in the width direction (see Figure 1 ). The width direction is parallel to the transverse direction 34 and perpendicular to the longitudinal axis 18 .

[0170] In a specific embodiment, the width B is 30 cm.

[0171] Furthermore, the storage surface 150 has a length L in a longitudinal direction parallel to the longitudinal axis 18 which is at least 20 cm.

[0172] In a specific embodiment, the length L is 30 cm.

[0173] In addition, the storage surface 150 has at least 400 cm 2 , especially 500 cm 2 The area is at least approximately equal to the product of the length L and the width B.

[0174] In one embodiment, the area is 900 cm 2 .

[0175] In particular, the storage surface 150 is designed such that, for example, a 10-liter household bucket or a 20-liter construction bucket can be positioned on the storage surface 150 .

[0176] The placement surface 150 of the placement device 148 is arranged on the cleaning machine 10 so that an object (such as a bucket) can be placed on the placement surface 150 from above, and then the placement surface 150 can support the object downward.

[0177] The storage surface 150 is oriented parallel to the storage plane 26 at least with respect to its envelope surface, or forms a small acute angle of up to 10° with the storage plane 26. Thus, objects are prevented from sliding off at least on the flat bottom surface 24. In addition, an anti-slip device can be provided, which will be described in detail below.

[0178] In the cleaning machine 10, the storage device 148 is formed on the cleaning material container 108, and in this case, is formed on the top wall 120. The outer side 152 of the top wall 120 forms or includes a storage surface 150.

[0179] Accordingly, when the cleaning material container 108 is removed from the cleaning machine 10 , the storage surface 150 is also removed from the cleaning machine 10 .

[0180] The storage surface 150 is arranged within the edge wall 154. The edge wall includes a first side wall 156, which extends at least approximately parallel to the longitudinal axis 18. The edge wall also includes a second side edge wall 158, which is parallel and spaced from the first side edge wall 156. The first side wall 156 and the second side wall 158 are connected by an end wall 160. The end wall 160 is oriented at least approximately parallel to the transverse direction 34.

[0181] The end wall 160 faces the housing 78. The end wall 160, the first side wall 156 and the second side wall 158 are designed such that when the cleaning material container 108 is properly placed on the cleaning machine 10, the cleaning material container 108 has a continuous and in particular stepless transition to the housing 78 at its upper side.

[0182] The edge wall 154 is open toward the front end 14 (when the cleaning material container 108 is placed on the cleaning machine 10); it is open away from the end wall 160. In this way, in particular, water that may accumulate on the storage surface 150 or has accumulated thereon can flow out forward (toward the front end 14).

[0183] The storage surface 150 is located between the first side wall 156, the end wall 160, and the second side wall 158. The spacing between the first side wall 156 and the second side wall 158 generally defines a width B of the storage surface 150.

[0184] The spacing between the end wall 116 and the opposed front end defines a length L.

[0185] The storage surface 150 is recessed relative to the edge wall 154 .

[0186] A handle 162 is arranged on the edge wall 154 and in this case on the end wall 160. The handle 162 comprises a bracket with a free space 164 for the fingers of an operator to pass through.

[0187] The handle 162 allows the cleaning material container 108 to be grasped and removed from or mounted on the cleaning machine 10 .

[0188] The edge wall 154 can prevent objects positioned on the storage surface 150 from falling sideways and backwards.

[0189] The storage surface 150 is equipped with an anti-skid device 166. The anti-skid device 166 is used to at least make it difficult for objects placed on the storage surface 150 to slide off.

[0190] In one embodiment, the anti-slip device 166 includes spaced apart protrusions 168 that are oriented parallel to the longitudinal axis 18, or parallel to the side walls 156, 158. The protrusions 168 are oriented transversely to, and in particular perpendicular to, the end wall 160.

[0191] The protrusion 168 is made of a non-slip material (eg, a corresponding rubber material or plastic material) at least in the region where it contacts the object to be placed.

[0192] In this embodiment, the envelope surface of the placement surface 150 is formed by the envelope surface on the projection 168 .

[0193] The anti-slip device 168 may also have other configurations, such as an anti-slip pad, which is fixedly or detachably positioned between the walls 156 , 158 , 160 .

[0194] In one exemplary embodiment, at least one fastening element is assigned to the storage surface 150 , by means of which an object (eg a bucket) positioned on the storage surface 150 can be fixed.

[0195] In one embodiment, a fastening recess 170 or a fastening eyelet 170 is arranged on the first side wall 156 and the second side wall 158. Such a fastening recess 170 is an opening, which is particularly connected between the outer side of the edge wall 154 and the space above the storage surface 150.

[0196] In such a fastening recess 170 , for example, a hook of a quick release can be accommodated or a release strap can be passed through.

[0197] In one embodiment, exactly one fastening recess 170 is arranged on each of the first side wall 156 and the second side wall 158 , wherein the fastening recesses are aligned with one another; the connecting lines between the fastening recesses 170 are parallel to the end wall 160 or to the transverse direction 34 or perpendicular to the longitudinal axis 18 .

[0198] A plurality of fastening recesses 170 may also be provided on each side wall 156 or 158 .

[0199] For example, a fastening recess or a plurality of fastening recesses may also be arranged in the front region 124 of the cleaning material container 108. Then, for example, a quick release may be arranged between this fastening recess and the handle 162 (and its free space 164) or a release belt may be passed through. In this embodiment, a cross-guiding of the release belt (between the fastening recess in the front region 124 and the fastening recess 170 on the side wall 156 or 158) may also be achieved.

[0200] Furthermore, it is also possible to arrange or form one or more storage openings 172 ( Figure 1 ). In such a storage opening 172 , for example, a screwdriver or the like can be accommodated.

[0201] One or more objects, such as a bucket, can be carried via the storage surface 150 during the cleaning mode of the sweeping machine 10. Such objects can be additionally secured via the fastening element 170 to prevent them from falling off in the corresponding travel mode.

[0202] Even when the cleaning machine 10 is parked and is placed with the placement surface 26 on the ground, wherein in particular the handle 84 is moved into the first end position 98 , objects can be stored on the cleaning machine 10 via the storage surface 150 .

[0203] In the sweeping machine 10, the storage surface 150 is arranged on the cleaning material container 108. When the cleaning material container 108 is fixed to the chassis 12, the storage surface 150 is located above the wheel axis 36 and above the rotation axis 56 of the main sweeping roller 54 in the height direction 46. In addition, the storage surface is preferably located above one or more side brushes 136 in the height direction 56.

[0204] exist Figure 1 In the illustrated embodiment, the pivot axis 44 of the push rod 42 is located above the placement surface 150 .

[0205] Another embodiment of the sweeper (in Figures 6 to 8 The sweeping machine 10 shown in FIG. 1 and indicated by 180 includes a chassis 182 on which a rear wheel arrangement 184, a front wheel arrangement 186, a side brush 188 and a main sweeping roller 190 are arranged. The arrangement is in principle the same as described above in conjunction with the sweeping machine 10.

[0206] Furthermore, a height adjustment device is provided, which is in principle designed identically to the above-described height adjustment device 72 of the sweeping machine 10. A handle 192 is provided, which has a first setting in which the main sweeping roller 190 is spaced apart from the support plane 26. (The same reference numerals as for the sweeping machine 10 are used here.)

[0207] The cleaning material container 194 is removably mounted on the chassis 182 .

[0208] A housing 196 is provided which corresponds to the housing 78 .

[0209] The housing 196 , which is different from the housing 78 of the sweeper 10 , further houses a suction blower 198 for generating a negative pressure flow (suction flow).

[0210] Arranged on the housing 196 is a switch 200 , by means of which a motor, in particular an electric motor, of the suction blower 198 can be activated or deactivated.

[0211] The housing 196 has a receptacle 202 for one or more batteries 204 , which provide the electrical energy required for operating the suction blower 198 .

[0212] The cleaning material container is provided with an opening 208 on its upper side 206 (which faces away from the placement plane 26). When the cleaning material container 194 is placed on the sweeping machine 180, a channel device 210 is connected to the opening 208, which channel device 210 fluidically effectively (effective for the suction air flow) connects the interior space of the cleaning material container 194 with the suction blower 198.

[0213] A filter device 212 is arranged on the channel device 210 , which filters out dust particles and prevents them from entering the fan motor or impeller device of the suction blower device 198 .

[0214] In one embodiment, the filter device 212 includes a housing 214 having a corresponding filter of the filter device 212. The housing 214 is a filter cartridge of the filter device 212.

[0215] With respect to the suction flow, the filter device 212 is located upstream of the suction blower device 198. It is located downstream of the opening 208 with respect to the suction flow.

[0216] The housing 214 forms a bridge 216 between the duct arrangement 210 and the housing 196 , which is fixedly mounted on the chassis 182 .

[0217] In the region of the housing 214 , the cleaning material container 194 is spaced apart from the housing 214 .

[0218] The combination of the passage device 210 and the housing 214 is designed such that the cleaning material container 194 can be removed from the chassis 182 and inserted again in a simple manner by correspondingly releasing the connection of the passage device 210 to the opening 208 or producing the connection.

[0219] A storage device 218 having a storage surface 220 for one or more objects is formed on the bridge 216, in particular on an upper side 222 of the housing 214. The upper side 222 of the housing 214 faces away from the cleaning material container 194.

[0220] The placement surface 220 itself or the envelope surface is parallel to the placement plane 26 or forms an acute angle of no more than 10° therewith.

[0221] It has in particular a length L of at least 20 cm and a width of at least 20 cm. In addition, it has a width of at least 400 cm. 2 area.

[0222] In one specific embodiment, the length L is 24 cm, the width B is 23 cm, and the area is 552 cm 2 .

[0223] The storage surface 220 may have an anti-skid device such as that described above in conjunction with the anti-skid device 166. For example, corresponding protrusions or anti-skid pads may be provided.

[0224] In the exemplary embodiment shown, the housing 214 has an edge wall 224 which extends in the height direction transversely and in particular perpendicularly to the placement plane 26 in the direction of the cleaning material container 194 .

[0225] At least one fastening recess 226 is arranged on the edge wall 224 (see also Figure 7 and Figure 8 ), which is open toward the placement plane 26.

[0226] In this case, the edge wall 224 is a wall which extends parallel to the respective longitudinal axis (transversely to the axis of rotation of the main cleaning roller 190 ).

[0227] For example, a hook of a quick release can be positioned on the fastening recess 226. Thus, an object (for example a bucket) can be positioned on the storage surface 220.

[0228] In the case of the cleaning machine 180 , in particular the support surface 220 is the highest point of the cleaning machine 180 relative to the support plane 26 (with the exception of the push rod 228 ).

[0229] By using the bridge 216 as a storage surface 220 , optimal space utilization is achieved on the sweeping machine 180 .

[0230] A storage device 218 having a storage surface 220 is arranged between the housing 196 , which is firmly connected to the base 182 , and the passage device 210 .

[0231] With respect to the height direction perpendicular to the placement plane 26, the cleaning material container 194 is arranged between the placement plane 26 and the storage surface 220. Here, it can also be provided that the cleaning material container 194 is positioned between the placement plane 26 and the suction blower 198 in the housing 196 in this direction.

[0232] Furthermore, the cleaning material container 194 is positioned between the filter device 212 and the placement surface 26 .

[0233] In principle, it is also possible to configure the channel device 210 accordingly and to form the storage device 218 on the channel device 210. The filter device 212 is then arranged on the housing 196, for example.

[0234] In the sweeper 180, in the operating mode, a negative pressure flow is generated by the suction blower 198, which acts on the inner space of the sweeping material container 194. This negative pressure flow is mainly used to keep the "dust distribution" distributed in the environment small during the sweeping process using the sweeper 180. In principle, dust will be raised by the sweeper 180 using the rotating main sweeping roller 190 in the cleaning mode, and then it can be sucked away by the suction blower 198. The suction blower 198 is mainly used to suck away the raised dust, and is not necessarily mainly used to directly suck away the dust on the surface 24 to be cleaned.

[0235] In principle, it is also possible in the case of the sweeping machine 180 to drive the main sweeping roller 190 electrically via a corresponding motor.

[0236] In other respects, the sweeping machine 180 is in principle identical to the sweeping machine 10 with respect to the height adjustment of the main sweeping roller 190 and its spaced apart positioning relative to the resting plane in the first setting of the handle 192. Furthermore, the sweeping machine 180 is in principle identical to the sweeping machine 10 with respect to the storage device 218.

[0237] Reference numerals list

[0238] 10. Sweeper (first embodiment)

[0239] 12 Chassis

[0240] 14 Frontend

[0241] 16 Backend

[0242] 18 Vertical axis

[0243] 20 Rear wheel device

[0244] 22 Front wheel device

[0245] 24 Surface to be cleaned

[0246] 26 Placement Plane

[0247] 28 Direction of travel

[0248] 30 Right rear wheel

[0249] 32 Left rear wheel

[0250] 34 Horizontal direction

[0251] 36 Axis

[0252] 38 Roller

[0253] 40 Center plane

[0254] 42 Push bow

[0255] 44 Pivot axis

[0256] 46 Height direction

[0257] 48 First Bar Area

[0258] 50 Second Bar Area

[0259] 52 Third Bar Area

[0260] 54 Main cleaning roller

[0261] 56 Rotation axis

[0262] 58 Bracket

[0263] 60 Swing device

[0264] 62 Rotating bearing

[0265] 64 Rotation axis

[0266] 66 First Area

[0267] 68 Second Area

[0268] 70 Third Area

[0269] 72 Height adjustment device

[0270] 74 First Area

[0271] 76 Second Area

[0272] 78 Housing

[0273] 80 Shell internal space

[0274] 82 wall

[0275] 84 Handle

[0276] 86 strokes

[0277] 88 Track Device

[0278] 90 Circular Track

[0279] 92 Positive-locking elements

[0280] 94 Matching components

[0281] 96 Spring device

[0282] 98 First end position

[0283] 100 Stopper

[0284] 102 Bristles

[0285] 104 Spacing

[0286] 106 Base bracket

[0287] 108 Cleaning container

[0288] 110 Interior Space

[0289] 112 wall

[0290] 114 End side

[0291] 116 Opening

[0292] 118 bottom wall

[0293] 120 Top wall

[0294] 122 Sidewall

[0295] 124 Front area

[0296] 126 Holding device

[0297] 128 Lateral form-locking element

[0298] 130 Front positive locking element

[0299] 132 Opening

[0300] 134 Slope

[0301] 136 Side Brush

[0302] 138 Arm

[0303] 140 Brush clamping part

[0304] 142 Round Brush

[0305] 144 Free Space

[0306] 146 Handle

[0307] 148 Storage Device

[0308] 150 storage areas

[0309] 152 Outside

[0310] 154 Edge Wall

[0311] 156 First side wall

[0312] 158 Second side wall

[0313] 160 end wall

[0314] 162 Handle

[0315] 164 Free Space

[0316] 166 Anti-slip device

[0317] 168 Bump

[0318] 170 Fastening recess

[0319] 172 Storage recess

[0320] 180 Sweeper (Second Embodiment)

[0321] 182 Chassis

[0322] 184 Rear wheel device

[0323] 186 Front wheel device

[0324] 188 side brush

[0325] 190 Main cleaning roller

[0326] 192 Handle

[0327] 194 Cleaning container

[0328] 196 Housing

[0329] 198 Suction and Blowing Device

[0330] 200 Switch

[0331] 202 Accommodation

[0332] 204 Batteries

[0333] 206 upper side

[0334] 208 Opening

[0335] 210 channel device

[0336] 212 Filtering device

[0337] 214 Shell

[0338] 216 Bridge

[0339] 218 Storage Device

[0340] 220 storage surface

[0341] 222 upper side

[0342] 224 Edge Wall

[0343] 226 Fastening recess

[0344] 228 Push bow

Claims

1. A cleaning machine, comprising: Chassis (12; 182）； A rear wheel device (20; 184) and a front wheel device (22; 186), the rear wheel device and the front wheel device are arranged on the chassis (12; 182) and define a placement plane (26) of the sweeper at the surface (24) to be cleaned; a push bow (42; 228), the push bow is arranged on the chassis (12; 182); a cleaning material container (108; 194), the cleaning material container is placed on the chassis (12; 182); at least one main sweeping roller (54; 190), the at least one main sweeping roller is arranged on the chassis (12; 182) in a manner that it can rotate around a rotation axis (56); a height adjustment device (72), through which A height adjustment device is capable of adjusting the height positioning of the rotation axis (56) of the at least one main cleaning roller (54; 190) relative to the placement plane (26); and a handle (84; 192), which is capable of pivoting relative to the chassis (12; 182), the handle is mechanically connected to the height adjustment device (72), and an operator can adjust the height positioning of the rotation axis (56) relative to the placement plane (26) in a lockable manner through the handle, characterized in that the handle (84; 192) has an end position (98), in which the at least one main cleaning roller (54; 190) is spaced apart from the placement plane (26).

2. The cleaning machine according to claim 1, characterized in that Have at least one of the following: - the pivoting movement of the handle (84; 192) out of the end position (98) reduces the height distance of the rotation axis (56) relative to the placement plane (26); - the pivoting movement of the handle (84; 192) out of the end position (98) increases the pressing force of the at least one main cleaning roller (54; 190) towards the surface to be cleaned (24); - there is exactly one end position (98) in which the at least one main sweeping roller (54; 190) is spaced apart relative to the resting plane (26); - at each defined position of the handle (84; 192) other than the end position (98), the at least one main cleaning roller (54; 190) contacts the placement plane (26); - A pivoting movement of the handle (84; 192) away from the resting plane (26) out of an end position (98) in which the at least one main sweeping roller (54; 192) is spaced apart relative to the resting plane (26).

3. The cleaning machine according to claim 1 or 2, characterized in that Have at least one of the following: - a pivot axis (64) for the pivotable mobility of the handle (84; 192) relative to the chassis (12; 182) parallel to the axis of rotation (56) of the at least one main sweeping roller (54; 192); - a pivot axis (64) for the pivotable movement of the handlebar (84; 192) relative to the chassis (12; 182) is parallel to the wheel axis (36) of the rear wheel arrangement (20); - the pivot axis (64) of the handle (84; 192) for pivotal movement relative to the chassis (12; 182) is transversely and in particular perpendicularly to the direction of travel (28) of the sweeper; The pivot axis (64) of the handle (84; 192) for pivoting relative to the chassis (12; 182) is parallel to the pivot axis (44) of the push bow (42), wherein the push bow (42) is pivotable relative to the chassis (12; 182).

4. A sweeping machine according to any one of the preceding claims, characterised in that The invention relates to a device for providing a plurality of cleaning rollers, wherein the plurality of cleaning rollers are provided with at least one stop portion (100), against which the handle (84; 192) and / or an element of the height adjustment device (72) abut in an end position (98) in which the at least one main cleaning roller (54; 192) is spaced apart from the support plane (26).

5. The sweeping machine according to any one of the preceding claims, characterized in that A rail device (88) is assigned to the handle (84; 192), which rail device comprises in particular a circular rail when the handle (84; 192) is pivotable relative to the chassis (12; 192).

6. The sweeping machine according to any one of the preceding claims, characterized in that The height adjustment device (72) comprises a swing device (60) which is mounted on the chassis (12; 182) in a manner that allows it to rotate about a rotation axis (64), wherein the at least one main cleaning roller (54; 190) is held on the swing device (60) in a manner that allows it to rotate about the rotation axis (56).

7. The cleaning machine according to claim 6, characterized in that Have at least one of the following: - the rotation axis (64) of the oscillating device (60) is spaced apart from the rotation axis (56) of the at least one main sweeping roller (54; 190); The rotation axis (64) of the oscillating device (60) and the rotation axis (56) of the at least one main sweeping roller (54; 190) are oriented parallel to one another.

8. The cleaning machine according to claim 6 or 7, characterized in that: The handle (84; 192) is connected to the swing device (60), and in particular has at least one of the following: - the handle (84; 192) is rigidly connected to the swing device (60); The handle (84; 192) is connected to the pivot device (60) eccentrically with respect to the axis of rotation (64) of the pivot device (60).

9. The cleaning machine according to any one of claims 6 to 8, characterized in that: The oscillating device (60) has a first area (66), a second area (68) and a third area (70), wherein the second area (68) is located between the first area (66) and the third area (70), and the oscillating device (60) is held on the chassis (12; 182) at the second area (68) in a manner that allows it to rotate around the rotation axis (64), wherein the at least one main cleaning roller (54; 190) is held at the first area (66), and wherein the handle (84; 192) is connected to the oscillating device (60) at the third area (70).

10. The sweeping machine according to any one of the preceding claims, characterized in that A plurality of discrete positions are assigned to the handle (84; 192), at which a pivoting movement of the handle (84; 192) can be specified, wherein a discrete position is assigned to a specific height position of the rotation axis (56) relative to the placement plane (26).

11. The sweeping machine according to any one of the preceding claims, characterized in that The handle (84; 192) comprises a form-locking element (92) for defining the pivotal positioning of the handle (84; 192) relative to the chassis (12; 182) and, in particular, for defining the height positioning of the rotation axis (56) of the at least one main cleaning roller (54; 190) relative to the placement plane (26).

12. The cleaning machine according to claim 11, characterized in that: The form-fitting element (92) is mounted on a rod (86) in a movable and in particular linearly displaceable manner, wherein the handle (84; 192) is mechanically connected to the height adjustment device (72) via the rod (86).

13. The cleaning machine according to claim 11 or 12, characterized in that Have at least one of the following: - the form-fitting element (92) is designed as a sleeve which is in particular placed on the rod (86); - one or more mating elements (94) for a positive-locking connection with a positive-locking element (92) are arranged on a rail device (88) on which the handle (84; 192) can move, wherein in the case of the positive-locking connection, the handle (84; 192) is prevented from being able to pivot relative to the chassis (12; 182); The form-locking element (92) is spring-loaded by a spring device (96), wherein, in order to release the form-locking connection, an operator must overcome the spring force of the spring device (96) by moving the form-locking element (92).

14. The sweeping machine according to any one of the preceding claims, characterized in that The chassis (12; 182) has a first area (74) and a second area (76), the height adjustment device (72), the at least one main cleaning roller (54; 190) and the handle (84; 192) are arranged on the first area, and the cleaning material container (108; 194) is held on the second area, wherein in the longitudinal direction (18) of the chassis (12; 182), the second area (76) follows the first area (74).

15. The sweeping machine according to any one of the preceding claims, characterized in that The at least one main sweeping roller (54; 190) is positioned on the chassis (12; 182) between the rear wheels (30, 32) of the rear wheel arrangement (20; 184).

16. A sweeping machine according to any one of the preceding claims, characterised in that A storage device (148; 218) is provided, which has a storage surface (150; 220) for one or more objects, wherein the storage device (148; 218) is held by the chassis (12; 182) and is parallel to the storage plane (26) or inclined at a maximum of 10 degrees relative to the storage plane (26).

17. A sweeping machine according to any one of the preceding claims, characterised in that A suction and air blowing device (198) is provided, through which a negative pressure flow can be applied to the inner space of the cleaning material container (194), and a filtering device (212) for the negative pressure flow.

18. A sweeping machine according to any one of the preceding claims, characterised in that The invention has a configuration as a hand-guided sweeper which can be guided over the floor surface (24) to be cleaned via the sliding bracket (42; 228).

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