CN111936012B - Brush for a cleaning machine, cleaning machine and method for producing a brush - Google Patents

Abstract

There is provided a brush for a cleaning machine (10), comprising: a base (84) having a first abutment region (158); at least one bristle bundle chain (112) having a plurality of chain links (118), wherein at least one bristle bundle (114) is fastened to the chain links (118); and a fixing element (160) having a second abutment region (164), wherein the fixing element (160) is fixed to the base (84) and the at least one bristle bundle chain (112) is clamped between the first abutment region (158) and the second abutment region (164).

Description

Brush for a cleaning machine, cleaning machine and method for producing a brush

Technical Field

The invention relates to a brush for a cleaning machine.

The invention also relates to a cleaning machine.

The invention also relates to a method for producing a brush.

Background

DE 199,568 A1 discloses a brush turntable for a cleaning machine, which has a brushless center and a brush ring extending annularly around the brushless center.

DE 37 11 A1 discloses a dished broom for fastening to a rotating power head of a road sweeper. The bristle bundles are fastened on the arched plate, and the arched plate is screwed with the edge of the tray body.

US 2,923,958 discloses a rotary broom for a road sweeper.

A safety rotary brush for surface treatment is known from DE 40 33 A1, in which a flexible brush belt equipped with bristle bodies is configured as a closed brush ring.

EP2 939 563 B1 discloses a cleaning device for arranging a machine-driven cleaning machine or cleaning machine, comprising a carrier on which a plurality of receptacles for at least one cleaning element are arranged. A holder for releasably holding at least one cleaning element is formed on each receptacle. A central locking element is provided which is arranged on the carrier in a movable manner between an unlocking position and a locking position, wherein in the locking position the central locking element cooperates with all holders, all holders or all cleaning elements arranged in the holders and prevents the cleaning elements from being released from the respective holders. The central locking element is rotatably arranged on the carrier between an unlocking position and a locking position and is held on the carrier by means of the locking element in the locking position.

In PCT/EP2018/057793, unpublished at 3.27 in 2018, a tool for a weeder is described which is driven in operation to rotate and comprises a holder and a plurality of spaced apart bristle tufts which are arranged on the holder. The bristle tufts are positioned in a partial circle (Teilkreis) on the holder and the number of bristle tufts on the partial circle is in the range between 8 and 22 tufts.

Disclosure of Invention

The object of the present invention is to provide a brush of the type mentioned at the outset which allows bristles to be replaced in a simple manner when worn.

According to the invention, the object is achieved in that a base having a first contact area is provided, at least one tuft chain having a plurality of chain links is provided, at least one tuft being fastened to one chain link, and a fastening element having a second contact area is provided, wherein the fastening element is fastened to the base and the at least one tuft chain is clamped between the first contact area and the second contact area.

The brush is composed of, in particular, only two elements, namely a base and a fixing element, and also at least one bristle bundle chain.

The brush can thus be assembled in a simple manner from a minimum number of components. A simple manufacture is achieved. Furthermore, bristle replacement can be achieved in a simple manner by changing the bristle bundle chain. Thereby reducing material consumption.

Furthermore, the adaptation to different applications is optimized by using special bristles.

Furthermore, the replacement of the bristle bundles can be performed in a simple manner when the brush is fixed to the brush holder of the cleaning machine. The brush and in particular the base of the brush need not be disengaged from the brush holder.

It is also advantageous if the at least one bristle string is held on the base and/or on the fastening element by means of a form-fitting device, wherein the form-fitting element is arranged in particular on the at least one bristle string and the abutment element is arranged on the base and/or on the fastening element. A simple manufacturability of the brush is thus obtained, wherein the parts can be firmly connected to each other.

It is entirely particularly advantageous if the fastening element is connected to the base in a releasable manner. The bristles can thus be replaced simply by disengaging the fastening element and then correspondingly removing at least one bristle tuft chain and installing a new bristle tuft chain.

For the same reason, it is also advantageous if at least one bristle bundle chain is detachably connected to the base and/or the fastening element.

Advantageously, adjacent links of the bristle bundle chain are connected to one another via a web. In this way, a bristle bundle chain can be provided in a simple manner, which can in principle comprise any number of chain links. Furthermore, the movability of the bristle strand chain and thus the variability of the shape can be achieved by the webs. Thus, for example, a bristle bundle chain can be provided as a roll that can be cut to size. In a simple manner, a matching for use on the base is obtained.

Advantageously, at least one bristle tuft chain has a longitudinal extension and (at least) a movability in a direction transverse to the longitudinal extension. The at least one bristle bundle chain can thereby be arranged, for example, circularly and correspondingly positioned on the base. In addition, a different radius adaptation to the base can be achieved.

In one embodiment, the chain link has at least one leg extending transversely to the longitudinal extension direction. By means of such a foot, a positive connection with respect to the axial direction with the base and/or the fastening element can be achieved.

It is entirely particularly advantageous if the chain links are formed mirror-symmetrically. There is no preferred orientation for mounting the bristle tuft chain on the base and it is convenient for the operator to replace the bristle tufts by replacing the bristle tuft chain.

Advantageously, the chain link has at least one receptacle for the bristle bundles and in particular exactly one receptacle for the bristle bundles. In this way, a brush can be realized in a simple manner, on which the bristle bundles can be replaced in such a way that at least one bristle bundle chain as a whole is replaced.

The bristle tufts are held in the associated receptacles in a particularly secure manner and in particular are held such that they are only removed if the bristle tufts or the receptacles are damaged. The brush can thus be constructed in a simple manner and the bristle bundles can be replaced in a simple manner.

In one embodiment, the bristle tufts are inserted into the associated receptacles or held or bonded by injection molding. The bristle bundle chain can thus be produced in a simple and cost-effective manner.

The individual bristles form, for example, bristle tips of bristle bundles with their two ends. Thus, simple manufacturability is achieved.

Advantageously, the tuft chain is provided as a roll. The proper length bristle bundle chain can then be provided by, inter alia, a roll by sizing shearing.

In principle, it is possible for the bristle bundle chain to be constructed continuously and to be positioned on the base. An alternative, which is inexpensive, is that at least one bristle tuft chain has a first end and a second end, which ends are not connected to one another. At least one tuft chain for a brush can thus be manufactured by sizing the chain from a larger one.

In a structurally simple embodiment, the chain link comprises at least one sleeve as a receptacle for the bristle bundles. The sleeve may be used to clamp the bristle tuft chain between the first abutment region and the second abutment region and provide a corresponding form-fitting element.

The abutment surface for the first abutment region and/or the second abutment region is formed in particular on the at least one sleeve. Thereby enabling a brush with a minimum number of parts.

Advantageously, at least one tab for connection to an adjacent link and/or at least one foot for positive-locking with the base and/or the fastening element are arranged on the sleeve. A bristle bundle chain is thus obtained which is comparatively simple to construct, can be positioned on a base and can be clamped between a first abutment region and a second abutment region.

It is entirely particularly advantageous if the sleeve has a width which decreases in one direction at least in regions with respect to the outer contour and which matches the associated receptacle of the base. The wedge-shaped sleeve can thus be realized in a simple manner, wherein in particular a form fit can also be realized in a simple manner in the circumferential direction.

Advantageously, the base comprises a securing device for securing and in particular releasably securing the brush to a brush holder of the cleaning machine. The fastening device is preferably formed on a plate-shaped element on the base. Replacement of the bristle bundles can then be accomplished by replacing the bristle bundle chains without having to remove the base from the brush holder of the cleaning machine.

The fastening means are advantageously arranged and constructed such that the fastening element and the at least one bristle bundle chain can be decoupled from the base and can be positioned on the base when the base is fastened to the brush holder by the fastening means. Thus, a simple operability for the user in changing the bristle bundles when the bristles wear is produced; the base does not need to be disconnected from the cleaning machine.

It is entirely particularly advantageous if the base has a plurality of receptacles for the chain links. The bristle bundle chain can be fixed in a simple manner. A form-fitting connection can be achieved in particular by means of the receptacle.

In one embodiment, the receptacle has adjacent web elements in the circumferential direction, between which the chain links are arranged, in particular in the form of bushings, wherein the chain links are held in a positive manner in the circumferential direction by the web elements. Thus, a precise positioning of the bristle bundles in the brush can be achieved, which is constant even when the brush is rotated. However, a simple interchangeability of the bristle bundle chain can also be achieved.

It is also preferably provided that a receiving space is formed between adjacent web elements, the width of which decreases in the radial direction toward the edge wall of the base. The corresponding chain links can thereby be held on the receptacles in the manner of wedge receptacles. A stable fixation is thus obtained.

It is then also advantageous if the webs of at least one bristle bundle chain connecting adjacent links to one another are positioned in front of the web elements of the base. A stable fixation with simple replaceability is thereby obtained.

The receptacle advantageously has a recess for the leg element of the link, wherein the link is held in a form-fitting manner in the axial direction, in particular by a leg element inserted into the recess. In this way, a positive locking in both the circumferential and axial direction can be achieved in a simple manner on the receptacle.

It is also advantageous if the bottom wall to which the links are supported is arranged at an angle to the axial axis. A positive connection in the radial direction can thus be achieved in a simple manner.

In one embodiment, the base has a circumferential edge wall, on which the tab element and/or the recess for positively holding the at least one bristle bundle chain is arranged or formed. The respective mount can be manufactured in particular in one piece. Thereby minimizing the number of parts of the brush.

It is also advantageous if the base has a bottom wall, on which a circumferential edge wall stands, wherein the bottom wall has a support region for the links of the at least one bristle bundle chain. It is particularly advantageous here if the bottom wall is oriented at an angle to the axial axis of the brush and/or the first contact region. An abutment surface for abutment with reference to the radial direction, in particular towards the central region of the seat, can thereby be provided. An additional positive-locking connection with reference to the radial direction is thereby achieved.

In one embodiment, the base has a recessed area surrounded by a bottom wall. The recess region may be used, for example, for arranging a locking device for the fastening element. Furthermore, a fixing device for fixing the brush for the brush holder of the cleaning machine can be arranged (at least in part) on the rear side of the recess region. Furthermore, the brush can thus be constructed with a smaller height with respect to the holder of the bristle bundles.

Advantageously, the first abutment region is at least partially formed on the receiving portion. A compact structure is thus obtained.

Advantageously, a locking device for the fastening element is provided on the base, wherein the locking position of the fastening element on the base can be established and released by a rotation of the fastening element relative to the base. The fastening element can thus be fastened to the base or detached from this base in a simple manner. The operator can thus change the bristle bundle chain in a simple manner when the bristles wear or when the application changes.

In a structurally simple embodiment, the locking device is configured as a screw device or a bayonet connection. In this case, the direction of rotation for the locking is oriented in particular in the same direction as the direction of rotation of the brush during operation of the cleaning machine, in order to avoid unintentional loosening.

Advantageously, the portion of the locking device arranged on the base is positioned on a recessed area of the base, which is axially spaced apart from the at least one bristle tuft chain. This results in a compact structure and the height of the holder of the brush holding the bristle bundles can be kept small.

In one embodiment, a plurality of slotted elements are arranged on the base, the slotted elements having respective slots for the abutment elements of the fixing element. The grooving element can be formed in particular integrally on the base and in particular on a recessed region of the base. A simple fixability or releasable property of the fixing element is obtained.

In one embodiment, a spring element is associated with the slotted element, which spring element facilitates the rotational fastening of the fastening element to the base. The spring element can be locked in the fixed position and thus bring about a corresponding locking. This fixed position can in turn be released in a simple manner.

Advantageously, the fastening element has a recess for the leg of the chain link for positive retention, in particular in the axial direction and possibly also in the circumferential direction. A positive-locking fastening between the bristle bundle chain and the fastening element, in particular with respect to the axial axis, can thus be achieved.

Advantageously, the second abutment region is at least partially formed on the outside of the wall of the fixing element. This outer side of the wall forms an abutment surface on the links of the tuft chain.

It can be provided that at least two bristle tuft chains are arranged consecutively in radial succession between the first contact region and the second contact region, wherein adjacent bristle tuft chains are in particular supported relative to one another. It can thus be provided, for example, that the bristle bundle chains are arranged in a plurality of partial circles, wherein the partial circles are in particular coaxial with one another. Thus, a brush having a relatively large coverage area with respect to the bristle bundles can be realized. The number of parts can be kept small by the mutual support of the adjacent bristle strands. In principle only the base, the bristle bundle chain and the fixing element are required.

The brush is in particular configured as a rotary brush, which rotates during operation of the cleaning machine.

Particularly for herbicides that are preferably erased and cut in combination, it is advantageous when at least one of the following is present:

-the tufts are placed on a partial ring, wherein the number of tufts on the partial ring lies in the range between 8 and 22 tufts;

-the number of individual bristles in the bristle bundle is in the range between 8 and 20;

-the diameter of the individual bristles lies in the range between 1.0mm and 2.0 mm;

the free length of the individual bristles in the unloaded state lies in the range between 50mm and 70 mm;

the individual bristles of the bristle bundle in the unloaded state form an angle with the symmetry axis (and in particular the axial axis) of the brush tool in the range between 40 ° and 60 °;

the brush is configured for operation with a peripheral speed in the range between 23m/s and 33m/s, wherein the peripheral speed is referenced to one end of the bristle bundle in the unloaded state.

It has been shown that a good compromise exists between the holding power for the operator and the cleaning effect when the parameters are selected accordingly. In principle, good cleaning effects should be present and the holding force for the operator should be as small as possible in order to achieve high operating comfort. By selecting the parameters individually or in combination, a good compromise can be achieved accordingly.

The cleaning machine according to the invention comprises at least one brush according to the invention.

The cleaning machine is configured, for example, as a sweeper and/or scrubber and/or weeder.

The cleaning machine according to the invention can be hand-held or manually guided or, for example, also self-propelled.

The cleaning machine according to the invention comprises, in particular, a drive for the rotational movement of at least one brush and a brush holder, in particular for fixing the brush (with a brush holder).

According to the invention, a method for producing a brush according to the invention is proposed, in which method at least one bristle string is applied to a base, a fastening element is fastened to the base, and the at least one bristle string is clamped between a first contact region of the base and a second contact region of the fastening element, and in which the at least one bristle string is fastened in the base and/or to the fastening element by form-fitting.

According to the invention, a method for changing bristle bundles at a brush according to the invention is also provided, in which method the fastening element is decoupled from the base, the possibly present bristle bundle chain is removed, and the method for producing a brush is then carried out.

Drawings

The following description of the preferred embodiments is provided for the detailed explanation of the present invention in conjunction with the accompanying drawings. In the accompanying drawings:

FIG. 1 is an isometric view of one embodiment of a brush according to the present disclosure;

FIG. 2 is another isometric view of the brush of FIG. 1;

FIG. 3 is a plan view of the brush according to FIG. 1 from below;

FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. 3;

FIG. 5 is an isometric view of one embodiment of a linearly extending bristle bundle chain;

fig. 6 is a side view of the tuft chain according to fig. 5;

fig. 7 is a top view of the tuft chain according to fig. 5;

FIG. 8 is an isometric view of the bristle tuft chain according to FIG. 5 forming a loop;

FIG. 9 is an isometric view of a base of the brush of FIG. 1;

FIG. 10 is a top view of the base according to FIG. 9 from below;

FIG. 11 is a cross-sectional view of the base taken along line 11-11 of FIG. 12;

FIG. 12 is a top view of the base according to FIG. 9 from above;

FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 10;

FIG. 14 is an isometric arrangement of the base according to FIG. 9 with the bristle bundle chain according to FIG. 8 arranged on the base;

fig. 15 is a top view from above of the combination of base and tuft chain according to fig. 14;

FIG. 16 is a cross-sectional view taken along line 16-16 of FIG. 15;

fig. 17 is a top view of the base according to fig. 9 with a bristle bundle chain arranged on the base and a fastening element arranged on the base, wherein the fastening element is not yet in the locked position (in which the view according to fig. 3 is produced);

FIG. 18 is a cross-sectional view taken along line 18-18 of FIG. 17;

FIG. 19 is an isometric view of a combination of the base, tuft chain and fixing element of FIG. 17;

FIG. 20 is a top view of another embodiment of a brush according to the present disclosure from below, with a plurality of radially successive bristle tuft chains; and is also provided with

FIG. 21 is an isometric view of one embodiment of a weeding machine as a cleaning machine for use with a brush in accordance with the present invention.

Detailed Description

One embodiment of a cleaning machine in the form of a weeder 10 (weed extractor), shown in fig. 21 and designated by reference numeral 10, includes a tool head 12. A distal end 14 of the weeder 10 is formed on the tool head 12. The weeder 10 also has an opposed proximal end 16.

The tool head 12 is located on a retaining bar arrangement 18. In particular, the weeder 10 with the retaining lever arrangement 18 is configured such that an operator can operate the weeder 10 standing. The operator stands in particular behind the application surface 20, on which the weeder 10 acts.

In principle, it is also possible for the weeder 10 to be configured as a hand-held device, in which case the holding rod arrangement 18 can have a corresponding length or no holding rod arrangement can be present.

In the weeder 10, a first handle 22 is arranged in the region of the proximal end 14 and in particular in the end region of the holding rod arrangement 18. The first handle 22 has a first gripping region 24 configured for gripping with a first holding hand (Haltehand) of an operator.

In one embodiment, a switch 26 for operating the weeder 10 is arranged on the first handle 22 in the region of the first gripping area 24.

The first handle 22 in one embodiment includes an arcuate member 28 that is connected to the first gripping region 24 and the holding region 28. The first gripping region 24 is in turn connected to a holding region 28. The holding region 28 is located on an end region of the holding rod arrangement 18 or is part of the holding rod arrangement 18.

The first handle 22 thus encloses an opening 30 through which a finger of a first holding hand can pass.

The first handle 22 is configured with a first gripping area 24, particularly in the manner of a pistol grip.

The retaining bar arrangement 18 in one embodiment comprises a retaining bar 32 extending in a longitudinal direction 34.

The retaining rod 32 or the retaining rod arrangement 18 has a central plane. The longitudinal direction 34 is parallel to or in this central plane.

The first grip region 24 likewise lies on this central plane and is symmetrical in particular about this central plane.

A second handle 38 is also provided. This second handle 38 is spaced from the first handle 22. The second handle has a second gripping area 40. This second gripping area 40 can be gripped by a second holding hand of the operator. The second gripping area 40 is positioned transversely to the longitudinal direction 34 and spaced apart from the retaining bar means 18. The second gripping region 40 is configured transversely to the first gripping region 24 or transversely to the central plane.

The second gripping region 40 is formed in particular on a bow 42 which is positioned on the holding region 28 or on the holding rod arrangement 18.

In one embodiment, the second grip region 40 comprises a central region 41, on which one region 41a or 41b, respectively, is connected on one side. The central region 41 is oriented perpendicularly to the central plane and the regions 41a, 41b are oriented obliquely to this central plane.

The second handle 38 is symmetrical about a central plane. The second handle is in particular D-shaped.

In one embodiment, the weeder 10 includes a handle unit 44 having a first handle 22 and a second handle 38 and secured as a unit to the holding bar arrangement 18.

The holding region 28 of the handle unit 44 can be regarded here as an extension of the holding rod arrangement 18 and thus also as a functional part of the holding rod arrangement 18.

In one embodiment, it is provided that the length of the weeding machine 10 is adjustable as the distance between the tool head 12 and the first handle 22.

In one embodiment, the handle unit 44 includes an insertion region in which the retaining rod 32 is telescopically inserted. The holding rod 32 can be fastened to the handle unit 44, for example, by means of a detent or a drilled hole.

In one embodiment, the retaining bar arrangement 18 is pivotally connected to the tool head 12 by a pivot hinge 46. The pivot hinge 46 has a pivot axis 48 that is transverse to the longitudinal direction 34 or transverse to the central plane.

The length of the weeder 10 between the distal end 14 and the proximal end 16 can be matched to the height of the operator by pivoting the hinge 46.

In particular, it is provided that the pivot hinge 46 is difficult to move or that a locking device is associated with the pivot hinge 46 in order to lock a specific pivot position of the holder bar arrangement 18 relative to the tool head 12.

The tool head 12 includes a tool holder 50, the tool holder 50 being rotatable about an axis of rotation 52. The axis of rotation 52 is oriented transverse to the longitudinal direction 34.

The rotation axis 52 is furthermore oriented transversely and in particular perpendicularly to the pivot axis 48.

In one embodiment, the axis of rotation 52 is in a central plane.

In particular, it is provided that, when the weeding machine 10 is operated as intended, the tool 54 held on the tool holder 50 acts on the application surface 20, and the axis of rotation 52 is oriented transversely to, and for example at least approximately perpendicularly to, the application surface 20.

The tool 54 is releasably retained on the tool holder 50.

A drive 56 for the tool holder 50 is arranged in the tool head 12 and is protected by a housing 58.

In one embodiment, the driver 56 is an electric motor.

In this embodiment, the drive 56 is in particular associated with a reduction gear, the torque of which is effectively coupled to the tool holder 50.

For example, a spur gear transmission is provided which slows the rotational speed of the drive 56 from, for example, about 9000 revolutions per minute to about 2700 revolutions per minute.

An axial offset can be provided between the axis of rotation of the drive 56 and the axis of rotation 52.

The drive 56 may in one embodiment be driven as an electric motor by mains current or may be provided with in particular rechargeable battery means.

In one embodiment operating with mains current, in particular, a cable 60 is provided, which is fastened to the first handle 22 and is guided away from this. On this cable 60 a corresponding power plug is arranged.

In particular, the battery device is positioned on the holding region 28 (or alternatively on the tool head 12) when operated by the battery device. The battery device is removable (in particular for charging) or is firmly fixed to the holding area 28.

In principle, it is also possible for the drive 56 to be an internal combustion engine.

In one embodiment, the tool holder 50 includes a disc 62 rotatable about the axis of rotation 52 to which the tool 54 may be releasably secured. The disc 62 is torque-operatively coupled to the driver 56 by the torque-transmitting devices described.

A protective cover 64 is provided over the tool head 12. The protective cover 64 covers the tool 54 downwardly toward the operator. The boot 64 is in one embodiment configured in the manner of a baffle 66 positioned on the tool head 12 and extending downwardly. The baffle 66 is at least approximately configured as a portion of a tapered section sheath.

The baffle has a lip structure 68 on the lower end 70. The protective cover 64 can be fitted over the active surface 20 by means of this lip 68.

The protective cover 64 here encloses and delimits a space 72 which is open towards the front and is, for example, in the form of a hollow conical section.

In one embodiment, the shield 64 has an open angle with its baffle 66 between the forwardly directed edge strips. This opening angle is for example in the range of about 135 deg..

In one embodiment, the edge strips are positioned at an angle to each other.

The shield 66 (protective cover 64) is in one embodiment at least partially made of a transparent material. This facilitates the operation.

It is furthermore provided that the protective cover 64 (flap 66) is made at least in part of a flexible (elastic) material. This facilitates cleaning or removal of the attached dirt.

The protective cover 64 (baffle 66) may be provided with a coating to support convenient cleaning.

In one embodiment, the weeder 10 has means 78 for hanging and storing (and thus protecting the tool 54) the weeder 10. This means 78 is formed, for example, by an eyelet which is arranged on the first handle 22 (see fig. 21).

It may be provided that the weeder 10 is provided with a gripping belt device by which an operator can grip the weeder 10. Corresponding fastening means (not shown in the figures) for holding the strap are correspondingly arranged on the weeder 10 and in particular on the holding rod arrangement 18 and/or on the first handle 22.

The brush 80 according to the invention (fig. 1 to 4) is provided as a tool 54 for fastening to the tool holder 50.

The brush 80 is in particular configured as a rotary brush which can be rotated about a rotation axis 82. When the brush 80 is secured to the herbicide 10, the axis of rotation 82 is coaxial with the axis of rotation 52 of the driver 56.

The brush 80 is in particular constructed in the form of a cup-shaped brush.

The brush 80 has a base 84. Only the base 84 is shown in fig. 9 to 14.

The base 84 (see in particular figures 9 to 13) includes a bottom wall 86. The bottom wall 86 is annular and in particular circular in configuration. The bottom wall is bounded by a first edge 88a and by a spaced apart second edge 88 b. The first and second edges 88a, 88b are each circular and the reference axes 90 are concentric with one another. Axis 90 is coaxial with axis of rotation 82. The axis 90 defines an axial direction on the brush 80.

The bottom wall 86 surrounds the recessed area 92. The recess region 92 itself has a base 94 on which an annular wall 96 is arranged projecting transversely to and, for example, parallel to the axis 90. The annular wall 96 is integrally connected with the bottom 94, for example.

The recess 92 defines a space 97 which is at least approximately of hollow cylindrical design.

On the bottom wall 86, on the second edge 88b there is an edge wall 98 surrounding the bottom wall 86. The edge wall 98 is oriented transverse to the bottom wall 86 and is oriented, for example, at an acute angle 100 (see fig. 13) to the axis 90.

In one embodiment, this acute angle 100 is about 45 °.

The bottom wall 86 is oriented transverse to the annular wall 98. In one embodiment, the bottom wall 86 is oriented at least approximately perpendicular to the edge wall 98 (see FIG. 11). The bottom wall 86 is then oriented, inter alia, at an acute angle 102 (see fig. 13) to the axis 90, which corresponds to the difference between the acute angle 100 and the 90 angle.

By the angled arrangement of the bottom wall 86 relative to the axis 90, the base 84 with the recessed region 92 may be configured with a smaller height dimension parallel to the axis 90 (see FIG. 11).

The brush 80 has a fastening device 104 for rotationally fixed fastening to the tool holder 50. This fastening means 104 is arranged or formed here on the base 84 and in particular on the bottom 94.

In one embodiment, the fixation device 104 includes a sleeve 106 centrally disposed on the base 94 and in particular integrally formed with the base 94. Sleeve 106 protrudes from the side of bottom 94 facing away from recessed region 92.

The sleeve 106 has a central opening 108 through which the shaft of the cleaning machine can pass.

The shaft is in particular provided with a thread.

The sleeve 106 has an interior space 110 which is not configured rotationally symmetrically to the axis 90 and in particular is configured as a (hollow) prism. This (hollow) prism has, for example, a hexagonal cross section.

To secure the brush 80 to the cleaner via the base 84, the shaft of the cleaner passes through the opening 108. The nut is screwed onto the shaft or the shaft is screwed onto the nut, which is then positioned in the interior space 110 in a rotationally fixed manner.

The thread between the shaft and the nut is formed on the cleaning machine in this case counter to the direction of rotation of the brush.

The brush 80 includes (at least) one tuft chain 112 having a plurality of tufts 114 (see also fig. 5-8 in particular). The bristle bundle 114 in turn comprises a plurality of individual bristles 116.

The bristle tuft chain 112 is releasably retained on the brush 80; the bristles can thus be replaced when they wear, thereby replacing the corresponding tuft chain 112.

The bristle tuft chain 112 includes a plurality of links 118. Adjacent links 118 are interconnected.

In one embodiment, the link 118 includes a sleeve 120 that forms a receptacle 122 for the bristle bundle 114.

The corresponding bristle bundles 114 are positioned in the grooves 124. The recess 124 is, for example, hollow cylindrical.

The respective bristle bundles 114 are in particular firmly positioned on the sleeve 120 (on the receptacle 122). The bristle bundles are glued into the sleeve 120 or fixed to the sleeve 120 by injection molding, for example.

In one embodiment, the bristle bundles 114 are plugged into the receptacles 122 and are additionally secured, for example, by one or more metal clips.

In particular, provision is made here for the individual bristles 116 to be folded in half for the production of the bristle bundles 114 and for the folded-in-half region to be positioned in the receptacle 122. Thus, the opposite ends of a single bristle form bristle tips 126 on the tuft 114. The length of the bristle bundles 114, in the unloaded state, is then approximately half the length of the individual bristles 116.

The bristle tuft chain 112 has an extension in a longitudinal extension direction 126 (fig. 5).

Adjacent links 118 are interconnected by tabs 128. In particular, it is provided that a web 128 is provided on the sleeve 120 and is connected to an adjacent sleeve. Tab 128 is in particular integrally connected with respective sleeve 120; tab 128 forms a bridge between adjacent sleeves 120.

The webs 128 are arranged and/or configured such that the bristle bundle chain 112 is movable and thus deformable in a direction 130 (see fig. 5) transversely to the longitudinal extension direction 126 (and transversely to the longitudinal extension direction of the bristle bundle 114 in the unloaded state). This mobility is achieved in particular by a corresponding deformability of the webs 128.

Thus achieving a shape match for the tuft chain 112. In particular, the bristle string chain 112 can thereby be matched in terms of its shape to the base 84 (see fig. 8). This will be explained in more detail below.

It is also possible in principle for the bristle string chain 112 to be constructed to be closed and to be fastened in this manner to the brush 80.

In one advantageous embodiment, the bristle bundle 112 has a first end 132 and a second end 134. The first end 132 and the second end 134 are not connected to each other.

The bristle tuft chain 112 can be manufactured from a longer chain, for example by sizing, with a desired number of bristle tufts 114 (corresponding to a desired number of links 118). The longer chain is provided, for example, as a roll.

The corresponding movement of the bristle tuft chains 112 toward each other in the transverse direction 130 by the links 118 has the shape required for securing this bristle tuft chain to the base 84. The longitudinal direction 126 then has a course change (see fig. 8) which is adapted to the geometric configuration of the base 84.

The bushings 120 of the links 118 each have a first leg 136 and an opposing second leg 138. These legs project away from the sleeve 120 in the transverse direction 130.

Legs 136, 138 are intended to be positively secured to brush 80, in particular in the direction of axis 90.

The links 118 are in particular configured mirror-symmetrically with respect to a mirror axis oriented perpendicular to the transverse direction 130.

This facilitates the installation of the brush 80, since there is no "wrong direction of installation" of the bristle tuft chain 112.

The sleeve 120 has at least one approximately hexagonal outer contour 140. Referring to centerline 142, the sleeve has a width B (see FIG. 7) that decreases perpendicular to centerline 142 (in lateral direction 130) toward first leg 136 and also decreases perpendicular to centerline 142 (in lateral direction 130) toward second leg 138.

The width B is the width parallel to the longitudinal extension 126 on the respective sleeve 120.

The sleeve 120 having a width B has a depth T perpendicular to the midline 142 (parallel to the lateral direction 130). Tab 128 is on midline 142, where the depth of tab 128 is less (particularly substantially less) than the depth T of sleeve 120.

The grooves 124 are in particular in a correspondingly symmetrical configuration on the center line 142.

The sleeve 120 has a first side 144a and an opposite second side 144b in the depth direction (perpendicular to the midline 142).

The first side 144a and the second side 144b are in particular oriented parallel to each other or at a small acute angle (10 ° or less) to each other.

It is also provided in particular that the first side 144a and the second side 144b are configured flat.

First leg 136 extends from first side 144a. The second leg 138 extends from the second side 144b.

From the midline 142 to the first side 144a or from the midline 142 to the second side 144b, the sleeve 120 is configured in a wedge shape in cross section (see fig. 7).

The base 84 has receptacles 146 for the individual links 118 (the sleeves 120 of the bristle bundle chains 112). The receptacle 146 is formed by spaced apart tab elements 148a, 148b (see, e.g., fig. 9). Tab elements 148a, 148b are disposed on edge wall 98 and in one embodiment protrude up to bottom wall 86. The tab element is in particular integrally arranged on the edge wall 98 and integrally connected with the bottom wall 86.

A space 150 is formed between adjacent tab elements 148a, 148b for partial insertion of sleeve 120.

The space 150 tapers in particular over its width to the wedge-shaped design of the sleeve 120 toward the edge wall 98. Tab elements 148a, 148b are correspondingly configured.

In principle, it is also possible for one tab element to form a tab element for an adjacent receptacle 146.

In the illustrated embodiment, each receptacle 146 has its own tab element 148a, 148b. Thereby saving material when manufacturing the base 84.

Tab elements 148b, 148b project away from edge wall 98. Due to the described tapering toward the edge wall 98, the tab elements are generally not precisely aligned with the radial direction 152.

The tab elements have a length in their projection direction facing away from the edge wall 98, which is such that the tab 128 is located before the tab elements 148a, 148b when the bristle tuft chain 112 is positioned (see fig. 14).

The receptacles 146 each have a recess 154 in the edge wall 98. Such a groove 154 is arranged between the associated tab elements 148a, 148b and has an extension in the circumferential direction 156 and an extension in the radial direction 152.

In one embodiment, the grooves 154 are cut through to the surface (see FIG. 1).

A plurality of grooves 154 are particularly spaced and preferably evenly spaced along the circumferential direction 156 on the base 84.

Recess 154 is for receiving either leg 136 or 138; each leg can be inserted into the recess 154. Groove 154 matches the dimensions of legs 136, 138. When the legs 136 or 138 of the bristle bundle chain 112 are inserted into the respective recess 154, a positive locking is thereby achieved, in particular with respect to the axial axis 90.

In principle, a dynamic reversal can be achieved, in which case the support feet are formed on the base and the insertion grooves for the support feet are formed on the chain links.

When the brush 80 is manufactured (or when a new tuft chain 112 is installed), the respective tuft chain 112 is positioned on the base 84 (see fig. 14-16).

The tuft chain 112 here takes on a shape such that it follows the contour of the edge wall 98 (see also fig. 8). Each link 118 and its sleeve 120 is inserted into a receptacle 146 between the tab elements 148a, 148 b. The corresponding leg 136 or 138 is guided into the respective groove 154.

The base 84 has a first abutment region 158 for abutment against the tuft chain 112. The first abutment region 158 is formed by an intermediate face between the tab elements 148a, 148b, which corresponds to the abutment face of the tab elements 148a, 148b and the abutment face (support face) of the bottom wall 86. In this first contact region 158, the sleeve 120 rests on the base 84.

If necessary, the webs 128 also bear against the web elements 148a, 148b on the end face side.

The second side 144b of each sleeve 120 bears against the edge wall 98 in the region between the web elements 148a, 148 b. The bottom side of sleeve 120 is supported on bottom wall 86.

The brush 80 further includes a securing element 160 that can be locked to the base 84 by a locking device 162. The fastening element 160 in turn has a second contact region 164 with which the fastening element acts on the bristle bundle chain 112 and in particular on the sleeve 120, wherein, when the fastening element 160 is fastened to the base 84, the bristle bundle chain 112 is clamped between the first contact region 158 of the base 84 and the second contact region 164 of the fastening element 160.

The locking device 162 is configured such that the fastening element 160 can be locked to the base 84 by a rotational movement with a rotational axis coaxial to the rotational axis 82 or coaxial to the axis 90 or can be disengaged from the base 84 by a rotational movement, in particular in a rotational direction opposite to the rotational direction used for locking.

In particular, it is provided that the fastening element 160 as a whole can be removed from the brush 80, i.e. completely released from the base 84. This allows the used bristle string 112 to be removed in a simple manner or a new bristle string 112 to be installed.

In one embodiment, the locking device 162 is configured as a bayonet-type connection.

A plurality of spaced apart and, in particular, circumferentially spaced apart slotted members 166 are disposed on the base 84.

In the embodiment shown, three grooving elements 166 are provided. The grooving element 166 is here positioned on the bottom 94 of the recess region 92.

The grooving element 166 comprises a tab 168 that is connected and in particular integrally connected with the bottom 94. A slot 170 is formed between tab 168 and base 94.

It is possible here for an opening 172 (see, for example, fig. 1) to be formed in the base 94 opposite the slot 170 in order to simplify the production of the slotted element 166.

The securing element 160 is configured in an annular shape with an annular wall 174 and a bottom wall 176. Annular wall 174 rises from bottom wall 176.

A tab 178 (fig. 17, 18) is formed on the bottom wall 176 or the tab 178 forms the bottom wall 176.

The number of tabs 178 corresponds to the number of grooving elements 166.

The gap is located between adjacent tongues 178, particularly in the axial direction 156.

Tongue 178 is configured for insertion into slot 170.

It can be provided here that the tongue 178 has a spring element 180, which is in particular prestressed. In one embodiment, a slot 182 is formed between the respective spring element and the remainder of the tongue 178 to enable this spring element 180 to move separately from the remainder of the tongue 178.

The slotted member 166 has a receiving area 184 for the spring member 180. When the securing element 160 is locked to the base 84 in the locked position, then the spring element 180 is positioned in the receiving element 184.

The receiving member 184 is separated from the remainder of the slotted member 166 as part of the slotted member 166, particularly by slots 186.

When the spring element 180 is positioned in the receiving element 184, a latching of the tongue 178 with the corresponding slotted element 166 is then achieved.

A stop element 188, which is embodied, for example, as a tab, is arranged on the fastening element 160. The stop element 188 is positioned in particular on one end of the respective tongue 178.

When the fastening element 160 is correspondingly positioned on the base 84 (see, for example, fig. 17) and then is rotated in the direction of rotation 190 such that the tongues 178 engage in the respective slots 170, a locking position of the fastening element 160 on the base 84 is reached, with the stop element 188 abutting against the end face region 192 (see fig. 2) of the associated slot element 166 (tongues 168). In this position, the spring element 180 is also positioned in the receiving element 184.

The annular wall 174 of the fixing element 160 has a region 194 for abutment against the annular wall 96 of the base 84.

This region 194 slides in particular on the annular wall 96 when the fastening element 160 is fastened to the base 84 or when the fastening element 160 is decoupled from the base 84 by a corresponding rotational movement.

The annular wall 174 of the fixing element 160 also has a region 196 for abutment against the first side 144a of the sleeve 120 of the bristle tuft chain 112. The pass through region 196 can clamp the bristle tuft chain 112 between the first abutment region 158 and the second abutment region 164.

Furthermore, the fastening element 160 has a plurality of circumferentially spaced recesses 198 or a continuous annular recess 198. The groove or grooves 198 are positioned between the regions 194 and 196 and serve to receive the corresponding first legs 136 of the sleeve 120 of the link 118 of the tuft chain 112. The corresponding leg 136 is inserted into the associated recess 198 (see, for example, fig. 18) when the fastening element 160 is fastened to the base 84. Thereby forming a positive fit securement and thus a stop structure that prevents the bristle tuft chain 112 from lifting from the base 84 and the securing element 160.

In principle, a dynamic reversal is also possible, in which case the support legs are arranged on the fastening element and the associated insertion grooves are arranged on the chain links.

The second contact region 164 of the fastening element 160 for contact with the bristle tuft chain 112 is formed in particular by a region 196 and, if appropriate, a recess or recesses 198.

The brush 80 is manufactured in particular as follows:

from the base 84 (see fig. 9 to 13), a correspondingly selected bristle tuft chain 112, in which the number of links 118 corresponds to the number of receptacles 146, is positioned on the base 84. In this case, the sleeve 120 is inserted into the respective receptacle 146 between the web elements 148a, 148b, wherein the sleeve 120 is then supported on the bottom wall 86 (see fig. 14 to 16). The fastening elements 160 are then fitted, more precisely, such that the tongues 178 lie between adjacent slotted elements 166 (fig. 17 to 19).

The fixation element 160 is then rotated in a rotational direction 190 (fig. 17). The tongue 178 is thereby inserted into the associated slot 170. This insertion position corresponds to the position according to fig. 1 to 4.

The rotation in the rotational direction 190 takes place in such a way that the respective stop element 188 of the fastening element 160 bears against the respective slotted element 166.

It is then also achieved that the individual spring elements 180 are positioned on the individual receiving elements 184.

This completes a kind of locking and ensures the rotational position.

The direction of rotation 190 for establishing the connection between the fastening element 160 and the base 84 is such that it corresponds to the direction of rotation of the brush 80 during operation of the respective cleaning machine and is thus not disengaged by the spin transfer.

The fastening element 160 acts in its fastening position on the bristle tuft chain 112, to be precise there on the first side 144 a. The securing element clamps the bristle tuft chain 112 with its sleeve 120, more precisely between the first abutment region 158 of the base 84 and the second abutment region 164 of the securing element 160.

The legs 136 of the bristle tuft chain are here inserted into grooves 198 in the fixing element 160.

The bristle tuft chain 112 is secured to the base 84 and to the securing element 160 by a form-fitting arrangement. By way of the legs 136, 138 and by way of insertion into the grooves 154 or 198, a positive-locking connection about the axis 90 is formed as an axial stop against lifting. Furthermore, a form fit in the circumferential direction 156 (including reverse) may be achieved.

By positioning sleeve 120 between tab elements 148a, 148b, a positive fit is formed with reference to circumferential direction 156.

By clamping the bristle tuft chain 112 between the annular wall 174 of the fixing element 160 and the edge wall 98 with the inclined bottom wall 86, a positive-locking connection in the radial direction 152 is established.

When the operator wishes to replace the tuft chain 112 after the tufts have worn, the operator disengages the fixing element 160 from the base 84 by rotation against the direction of rotation 190 and removes this fixing element. The operator can then remove the tuft chain 112 and install a new tuft chain and manufacture the brush 80 again in the same steps as described above.

To replace the bristle tufts by replacing the bristle tuft chain 112, the brush 80 need not be removed from the tool holder of the cleaning machine. The base 84 may remain secured to the tool holder. The disengagement of the fixing element 160 and disengagement of the bristle tuft chain 112 or the insertion of the bristle tuft chain 112 and the sheathing of the fixing element 160 and subsequent fixing of the fixing element can be carried out from the side facing away from the tool holder. This is marked with reference number 200 in fig. 16 by a double arrow.

The construction of the bristle bundle chain 112 with the corresponding construction and arrangement of the bristle bundles 114 is adapted to the respective application.

In one embodiment, the brush is configured as a cup-shaped brush of the extractor 10 of the cleaning machine. The bristle bundles 114 lie in particular on a partial circle (formed by the edge wall 98 with the receptacles 146).

In particular, provision is made for:

the number of bristle tufts 114 placed on the part-circular ring on the brush 80, in the range between 8 and 22 tufts; and/or

The number of individual bristles 116 in the bristle bundle 114 lies in the range between 8 and 20; and/or

-the diameter of the individual bristles lies in the range between 1.0mm and 2.0 mm; and/or

The free length of the individual bristle 116 as the length by which this individual bristle protrudes from the respective sleeve 120 lies in the range between 50mm and 70mm in the unloaded state; and/or

The individual bristles 116 of the bristle bundle 114 in the unloaded state form an angle with the axis 90 in the range between 40 ° and 60 °; and/or

The weeding machine 10 operates with a peripheral speed of the brush 80 in the range between 23m/s and 33m/s, with reference to one end of the bundle 112 in the unloaded state.

It has been shown that optimum adaptation in terms of retention and cleaning efficiency of the operator of the weeding machine 10 can be achieved with these values. Weeding can be achieved in particular by a combination of cutting and cleaning. In this context reference is made to the unpublished international application PCT/EP2018/057793, 3.27, 2018, which is incorporated herein in its entirety.

The brush 80 according to the present invention may also be used in other applications such as cleaning applications. Matching to the respective application can be accomplished in particular by a corresponding selection of the bristle tuft chain 112.

The corresponding brush 80 can be used for hand-held or hand-guided machines or also for self-walking machines such as sweepers. Cleaning applications (scrubbing applications) and similar applications are for example also possible.

It is also possible in principle to provide a brush 220 (fig. 20) with a plurality of bristle bundle chains 222, which are spaced apart in the radial direction.

The bristle tuft chain 224 is supported, inter alia, on the base 226, as described above. Another tuft chain 228 is then supported on tuft chain 224. The fastening element 230 is supported on the bristle bundle chain 228 and in this case clamps the bristle bundle chains 224 and 228 between a first abutment region 232 of the base 226 and a second abutment region 232 of the fastening element 230.

In principle, a positive-locking connection between the bristle bundles 224 and 228 can also be provided here with reference to the axial axis.

There is a form-fitting fixation of the bristle tuft chain 224 with the base 226 and the bristle tuft chain 228 with the fixing element 230 by at least one leg.

It is also possible here, for example, for the sleeves 236 of the bristle tuft chains 228 to be located between the sleeves 236 of the bristle tuft chains 224, wherein the sleeves of adjacent bristle tuft chains bear against one another.

It is also possible that more than two bristle bundle chains 222 are successive in radial direction.

In accordance with the invention, a brush 80 or 220 is provided in which the bristle bundles can be replaced in a simple manner by replacing the bristle bundle chains 112 or the like as the bristles wear. The respective brush 80 or 220 need not be removed from the tool holder for this purpose; the respective mount 84 or 226 may be fixedly retained therein.

A material-saving design is thus obtained that is simple to replace. In addition, a high degree of compatibility with the particular application is achieved.

It is also possible in principle to use a bristle bundle chain 112 with at least two links 118 on a part-circular ring. It is preferred for the operator to use only one tuft chain 112 on a portion of the ring. Thereby facilitating in particular the suitability for manufacturing the brush 80.

List of reference numerals

10. Weeding machine

12. Tool head

14. Distal end

16. Proximal end

18. Retaining rod device

20. Action surface

22. First handle

24. A first gripping area

26. Switch

28. Holding area

30. An opening

32. Holding rod

34. Longitudinal direction

38. Second handle

40. A second gripping area

41. Central region

41a, b region

42. Bow-shaped piece

44. Handle unit

46. Pivot hinge

48. Pivot axis

50. Tool holder

52. Axis of rotation

54. Tool for cutting tools

56. Driver(s)

58. Shell body

60. Cable with improved cable characteristics

62. Disk

64. Protective cover

66. Baffle edge

68. Lip structure

70. Lower end part

72. Space of

78. Device for hanging and storing

80. Brush tool

82. Axis of rotation

84. Base seat

86. Bottom wall

88a first edge

88b second edge

90. Axis (axial)

92. Recessed region

94. Bottom part

96. Annular wall

97. Space of

98. Edge wall

100. Acute angle

102. Acute angle

104. Fixing device

106. Sleeve barrel

108. An opening

110. Interior space

112. Brush hair bundle chain

114. Brush hair bundle

116. Single bristle

118. Chain link

120. Sleeve barrel

122. Housing part

124. Groove

126. Longitudinal extension direction

128. Tab

130. Transverse direction

132. First end portion

134. Second end portion

136. First support leg

138. Second support leg

140. Outer contour of

142. Midline

144a first side

144b second side

146. Housing part

148a tab element

148b tab element

150. Space of

152. Radial direction

154. Groove

156. Circumferential direction

158. A first abutting region

160. Fixing element

162. Locking device

164. A second abutting region

166. Grooving element

168. Tab

170. Slotting

172. An opening

174. Annular wall

176. Bottom wall

178. Tongue piece

180. Spring element

182. Slotting

184. Housing element

186. Slotting

188. Stop element

190. Direction of rotation

192. End face region

194. Region(s)

196. Region(s)

198. Groove

200. Mounting direction

220. Brush tool

222. Brush hair bundle chain

224. Brush hair bundle chain

226. Base seat

228. Brush hair bundle chain

230. Fixing device

232. A first abutting region

234. A second abutting region

236. Sleeve barrel

Claims (48)

1. A brush for a cleaning machine (10), the brush comprising: a base (84) having a first abutment region (158); at least one bristle bundle chain (112) having a plurality of chain links (118), wherein at least one bristle bundle (114) is fastened to one chain link (118); and a fixing element (160) having a second abutment region (164), wherein the fixing element (160) is fixed to the base (84) and the at least one bristle bundle chain (112) is clamped between the first abutment region (158) and the second abutment region (164), adjacent links (118) being connected to one another by webs (128),

the at least one bristle bundle chain (112) has a longitudinal extension direction (126) and has a mobility in a direction (130) transverse to the longitudinal extension direction (126),

The mobility in the transverse direction is caused by the webs (128),

the at least one bristle tuft chain (112) is connected to the base (84) and/or the fastening element (160) in a releasable manner,

the individual bristles (116) of the bristle bundle (114) are in an unloaded state at an angle in the range between 40 ° and 60 ° to the symmetry axis of the brush.

2. A brush according to claim 1, wherein the at least one bristle tuft chain (112) is held on the base (84) and/or on the fixing element (160) by means of a form-fitting arrangement.

3. A brush according to claim 1 or 2, wherein the securing element (160) is detachably connected to the base (84).

4. The brush according to claim 1, characterized in that the chain link (118) has at least one limb (136; 138) which extends transversely to the longitudinal extension direction (126).

5. A brush according to claim 1 or 4, characterized in that the links (118) are configured mirror-symmetrically.

6. A brush according to any of claims 1-2, characterized in that the chain link (118) has at least one receptacle (122) for the bristle bundles (114).

7. A brush according to claim 6, characterized in that the bristle bundles (114) are held fixedly in the associated receptacles (122).

8. A brush according to claim 6, characterized in that the bristle bundles (114) are plugged into the associated receptacles (122) or are held or glued in place by injection molding.

9. A brush according to any of claims 1-2, characterized in that the individual bristles (116) form bristle tips of the bristle bundles (114) with their two ends.

10. A brush according to any of claims 1-2, characterized in that the bristle bundle chain (112) is provided as a roll.

11. The brush according to any of claims 1-2, wherein the at least one bristle tuft chain (112) has a first end (132) and a second end (134) which are not connected to each other.

12. A brush according to any of claims 1-2, characterized in that the chain link (118) comprises at least one sleeve (120) as a receptacle (122) for the bristle bundles (114).

13. The brush according to claim 12, characterized in that an abutment surface (144 a, 144 b) for the first abutment region (158) and/or the second abutment region (164) is formed on the at least one sleeve (120).

14. The brush according to claim 12, characterized in that at least one tab (128) for connection to an adjacent link (118) and/or at least one foot (136; 138) for positively locking with the base (84) and/or the fastening element (160) are arranged on the sleeve (120).

15. The brush according to claim 12, characterized in that the sleeve (120) has a width which decreases in one direction at least in regions with respect to the outer contour, said width being adapted to the associated receptacle (146) of the base (84).

16. A brush according to any of claims 1-2, wherein the base (84) comprises securing means (104) for securing the brush to a tool holder (50) of the cleaning machine (10).

17. The brush according to claim 16, wherein the securing means (84) is arranged and constructed such that the securing element (160) and the at least one bristle bundle chain (112) are disengageable from the base (84) and positionable on the base (84) when the base (84) is secured to the tool holder (50) by the securing means (104).

18. The brush according to any of claims 1-2, characterized in that the base (84) has a plurality of receptacles (146) for the links (118).

19. The brush according to claim 18, characterized in that the receptacle (146) has adjacent web elements (148 a, 148 b) in the circumferential direction (156), between which the chain links (118) are arranged, wherein the chain links (118) are held in a form-fitting manner in the circumferential direction (156) by the web elements (148 a, 148 b).

20. A brush according to claim 19, wherein a receiving space is formed between adjacent tab elements (148 a, 148 b), the width of the receiving space decreasing in the radial direction (152) towards the edge wall of the base (84).

21. The brush according to claim 19 or 20, characterized in that the tab (128) of the at least one bristle bundle chain (112) connecting adjacent links (118) to each other is positioned before the tab element (148 a, 148 b) of the base (84).

22. The brush according to claim 18, characterized in that the receptacle (146) has a recess (154) for the leg element (136; 138) of the link (118).

23. The brush according to claim 18, characterized in that the base (84) has a circumferential edge wall (98) on which tab elements (148 a, 148 b) and/or recesses (154) for positively holding the at least one bristle bundle chain (112) are arranged or formed.

24. The brush according to claim 23, wherein the base (84) has a bottom wall (86) at which the circumferential edge wall (98) protrudes, wherein the bottom wall (86) has a support area for the links (118) of the at least one bristle bundle chain (112).

25. The brush according to claim 24, characterized in that the bottom wall (86) is oriented obliquely to the axial axis and/or to the first abutment region (158).

26. The brush according to claim 24 or 25, characterized in that the base (84) has a recessed area (92) surrounded by the bottom wall (86).

27. The brush according to claim 18, characterized in that the first abutment region (158) is at least partially formed on the receptacle (146).

28. A brush according to any of claims 1-2, characterized by locking means (162) for the fixing element (160) for locking onto the base (84), wherein the locking position of the fixing element (160) on the base (84) can be established and released by rotation of the fixing element (160) relative to the base (84).

29. A brush according to claim 28, wherein the locking means (162) is configured as a screw means or a bayonet connection.

30. The brush according to claim 29, wherein the portion (166) of the locking device (162) arranged on the base (84) is positioned on a recessed area (92) of the base (84) axially spaced from the at least one tuft chain (112).

31. A brush according to claim 29 or 30, characterized in that a plurality of slotted elements (122) are arranged on the base (84), the slotted elements having respective slots (170) for abutment elements (178) of the fixing element (160).

32. A brush according to claim 31, wherein a spring element (180) is associated with the slotted element (122), said spring element facilitating the rotational fixing of the fixing element (160) on the base (84).

33. A brush according to claim 31, characterized in that at least one stop element (188) for the slotted element (122) is arranged on the fixing element (160), which stop element rests in the locking position.

34. A brush according to any of claims 1-2, characterized in that the fixing element (160) has a recess (198) for the leg (136; 138) of the link (118) for positive retention.

35. A brush according to any of claims 1-2, wherein the second abutment region (164) is at least partially formed on the outside of the wall of the fixing element (160).

36. The brush according to any of claims 1-2, characterized in that between the first abutment region (158) and the second abutment region (164) at least two bristle bundle chains (222, 224) are arranged successively in the radial direction (152), wherein adjacent bristle bundle chains are supported relative to each other.

37. A brush according to any of claims 1-2, characterized in that it has a construction as a rotary brush.

38. A brush according to any of claims 1-2, characterized by at least one of the following features:

-the bristle tufts (114) are placed on a partial ring, wherein the number of bristle tufts (114) on the partial ring lies in the range between 8 and 22 tufts;

-the number of individual bristles (116) in the bristle bundle (114) is in the range between 8 and 20;

-the diameter of the individual bristles (116) is in the range between 1.0mm and 2.0 mm;

-the free length of the individual bristles (116) in the unloaded state lies in the range between 50mm and 70 mm;

The brush is configured for operation at a peripheral speed in the range between 23m/s and 33m/s, wherein the peripheral speed is referenced to one end of the bristle bundle in the unloaded state.

39. The brush according to claim 1, characterized in that the at least one bristle bundle chain (118) is held on the base (84) and/or on the fixing element (160) by means of a form-fitting arrangement, wherein a form-fitting element (144 a, 144b, 136, 138) is arranged on the at least one bristle bundle chain (112) and a docking element (86, 148a, 148b, 154, 198) is arranged on the base (84) and/or on the fixing element (160).

40. A brush according to any of claims 1-2, characterized in that the chain link has exactly one receptacle (122) for the bristle bundle (114).

41. A brush according to any of claims 1-2, characterized in that the base (84) comprises securing means (104) for releasably securing the brush to a tool holder (50) of the cleaning machine (10).

42. The brush according to claim 18, characterized in that the receptacle (146) has adjacent web elements (148 a, 148 b) in the circumferential direction (156), between which the chain links (118) with the bushings (120) are arranged, wherein the chain links (118) are held in a form-fitting manner in the circumferential direction (156) by the web elements (148 a, 148 b).

43. The brush according to claim 18, characterized in that the receptacle (146) has a recess (154) for the leg element (136; 138) of the chain link (118), wherein the chain link (118) is held in a positive-locking manner in the axial direction by the leg element (136; 138) inserted into the recess (154).

44. A brush according to any of claims 1-2, characterized in that the fixing element (160) has a recess (198) for the leg (136; 138) of the link (118) for a positive retention in the axial direction.

45. A cleaning machine comprising at least one brush (80; 220) according to any of the preceding claims.

46. The cleaning machine according to claim 45, which is configured as a sweeper and/or washer and/or weeder (10).

47. The cleaning machine according to claim 45 or 46, characterized by a drive (56) for the rotational movement of the at least one brush (80; 220).

48. Method for producing a brush according to any of claims 1 to 44, wherein at least one bristle bundle chain (112) is applied to a base (84), a fixing element (160) is fixed to the base (84), and the at least one bristle bundle chain (112) is clamped between a first contact region (158) of the base (84) and a second contact region (164) of the fixing element (160), and wherein the at least one bristle bundle chain (112) is fixed to the base (84) and/or to the fixing element (160) by means of a form fit,

The at least one bristle tuft chain (112) is connected to the base (84) and/or the fastening element (160) in a releasable manner,

the individual bristles (116) of the bristle bundle (114) are in an unloaded state at an angle in the range between 40 ° and 60 ° to the symmetry axis of the brush.