CN111936012A

CN111936012A - Brush for a cleaning machine, cleaning machine and method for producing a brush

Info

Publication number: CN111936012A
Application number: CN201980024007.8A
Authority: CN
Inventors: 克斯廷·韦尔莱恩; 奥利弗·豪格; 米夏埃尔·雷纳; 沃尔特·席夫豪尔
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2018-04-03
Filing date: 2019-04-01
Publication date: 2020-11-13
Anticipated expiration: 2039-04-01
Also published as: CN111936012B; EP3773067A1; DE102018107849A1; WO2019192953A1

Abstract

A brush for a cleaning machine (10) is provided, comprising: a base (84) having a first abutment region (158); at least one bristle strand chain (112) having a plurality of chain links (118), wherein at least one bristle strand (114) is fixed to a chain link (118); and a securing element (160) having a second abutment region (164), wherein the securing element (160) is secured to the base (84) and the at least one bristle tuft 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 further relates to a method for producing a brush.

Background

DE 19951568 a1 discloses a brushed rotor for a sweeping machine, which has a brushless center and a brush ring extending annularly around the brushless center.

DE 3711181 a1 discloses a disk broom for fastening on a rotary power head of a road sweeper. The bristle bundles are fastened to the bracket, which is screwed to the edge of the plate body.

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

DE 4033458 a1 discloses a safety rotating brush for surface treatment, in which a flexible brush strip equipped with bristle bodies is designed as a closed brush ring.

EP 2939563B 1 discloses a sweeping device for arranging a machine-driven sweeping or cleaning machine, which has a carrier on which a plurality of receptacles for at least one sweeping element are arranged. A holder for detachably 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 the central locking element interacts with all receptacles, all supports or all cleaning elements arranged in the receptacles in the locking position and prevents the cleaning elements from being released from the respective support. The central locking element is arranged on the carrier in a manner such that it can be rotated between an unlocked position and a locked position and is retained on the carrier in the locked position by means of the locking element.

In the unpressurized PCT/EP2018/057793, year 3, month 27, 2018, a tool for a weeding machine is described, which is driven in operation to rotate and comprises a holder and a plurality of spaced-apart bristle bundles arranged on the holder. The tufts are positioned in a partial circle (Teilkreis) on the holder and the number of 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 the bristles to be replaced in a simple manner when worn.

According to the invention, this object is achieved in a brush according to the preamble in that a base is provided with a first abutment area, at least one bristle tuft chain with a plurality of chain links is provided, wherein at least one bristle tuft is fixed to one chain link, and a fixing element with a second abutment area is provided, wherein the fixing element is fixed to the base and the at least one bristle tuft chain is clamped between the first abutment area and the second abutment area.

The brush is composed in particular of only two elements, namely the base and the fastening element, and also of at least one bristle tuft chain.

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

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

Furthermore, when the brush is fixed to the brush holder of the cleaning machine, the replacement of the bundle of bristles can be performed in a simple manner. 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 tuft chain 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 tuft chain and the abutment element is arranged on the base and/or on the fastening element. A simple manufacturability of the brush is thus achieved, wherein the parts can be firmly connected to one another.

It is very particularly advantageous if the fastening element is detachably connected to the base. The bristles can therefore be simply replaced by disengaging the fastening elements and then correspondingly removing at least one bristle tuft chain and attaching a new bristle tuft chain.

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

Advantageously, adjacent links of the bristle tuft chain are connected to one another via a web. In this way, a bristle tuft chain can be provided in a simple manner, which bristle tuft chain can in principle comprise any number of chain links. Furthermore, the movability of the bristle tuft chain and thus the variable shape can be achieved by the webs. This makes it possible, for example, to provide a bristle tuft chain as a web material which can be cut to size. The adaptation for use on the base is obtained in a simple manner.

Advantageously, the at least one bristle tuft chain has a longitudinal extent and (at least one) movability in a direction transverse to the longitudinal extent. It is thereby possible, for example, to arrange the at least one bristle tuft chain in a circle and to position it accordingly on the base. Furthermore, it is also possible to adapt to different radii of the base.

In one embodiment, the chain link has at least one leg extending transversely to the longitudinal extension. A positive-locking connection with the base and/or the fastening element in relation to the axial direction can be brought about by such a foot.

It is very particularly advantageous if the chain links are of mirror-symmetrical design. 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 a bristle tuft and in particular exactly one receptacle for a bristle tuft. In this way, a brush can be realized in a simple manner, on which the bristle bundles can be replaced in that at least one bristle bundle chain as a whole is replaced.

The bristle bundles are in particular held firmly in the associated receptacles and are in particular held such that they can only be removed if the bristle bundles or the receptacles are damaged. This allows the brush to be constructed in a simple manner and the bristle bundles to be replaced in a simple manner.

In one embodiment, the bristle bundles are inserted into the associated receptacles or are held or glued by injection molding. This allows the bristle tuft chain to be produced in a simple and cost-effective manner.

The individual bristles form, for example, the bristle tips of the bristle bundles with their two ends. Simple manufacturability is thereby achieved.

Advantageously, the bristle tuft chain is provided as a web of material. The bristle tuft chain of the correct length can then be provided, in particular by a roll, by means of a dimensioned shearing.

In principle, it is possible for the bristle tuft chain to be designed continuously and to be positioned on the base. One cost-effective alternative is for at least one bristle tuft chain to have a first end and a second end, which are not connected to one another. At least one bristle tuft chain for a brush can thus be manufactured by size shearing from a larger chain.

In a structurally simple embodiment, the chain link comprises at least one sleeve as a receptacle for the bristle tufts. The sleeve may serve to grip the bristle tuft chain between the first and second abutment regions and provide corresponding form-fitting elements.

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

Advantageously, at least one web for connecting to an adjacent chain link and/or at least one foot for positive fixing to the base and/or the fixing element is arranged on the sleeve. A bristle tuft chain of simpler construction is thus obtained which can be positioned on the base and clamped between the first and second abutment regions.

It is particularly advantageous if the sleeve, at least in regions, has a width that decreases in one direction with respect to the outer contour, said width being adapted to the associated receptacle of the base. A 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 fastening device for fastening and in particular detachably fastening the brush to a brush holder of the cleaning machine. The fastening device is preferably formed on a plate-shaped element on the base. The replacement of the bristle tufts can then be effected by replacing the bristle tuft chain without having to remove the base from the brush holder of the cleaning machine.

The fastening device is advantageously arranged and designed in such a way that the fastening element and the at least one bristle tuft chain can be detached from the base and can be positioned on the base when the base is fastened to the brush holder by means of the fastening device. This results in a simple operability for the user in terms of changing the bristle tufts when the bristles are worn; there is no need to disconnect the base from the cleaning machine.

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

In one embodiment, the receptacle has adjacent web elements in the circumferential direction, between which the chain link is placed, in particular with a bushing, wherein the chain link is held in the circumferential direction by the web elements in a form-fitting manner. It is thus possible to achieve a precise positioning of the bristle bundles in the brush, which is constant even when the brush is rotated. However, a simple replaceability of the bristle tuft chain can also be achieved here.

Preferably, provision is also made for an accommodation space to be formed between adjacent web elements, the width of which accommodation space decreases in the radial direction towards the edge wall of the base. The corresponding chain link can thereby be held on the receptacle in the manner of a wedge receptacle. A stable fixation is thus obtained.

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

The receptacle advantageously has a recess for the foot element of the chain link, wherein the chain link is held in an axially positive manner, in particular by a foot element inserted into the recess. This allows a form-fitting fastening to be achieved in a simple manner both in the circumferential direction and in the axial direction on the receptacle.

It is also advantageous if the bottom wall, on which the chain links are supported, is arranged at an angle to the axial axis. A form-fitting connection in the radial direction can thus be realized in a simple manner.

In one embodiment, the base has a circumferential edge wall on which tab elements and/or recesses for positively retaining at least one bristle tuft chain are arranged or formed. The respective base can in particular be produced 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 chain links of the at least one bristle tuft chain. It is particularly advantageous here if the bottom wall is oriented at an angle to the axial axis of the brush and/or to the first abutment region. An abutment surface for abutment with reference to a radial direction, in particular towards a central region of the base, can thereby be provided. An additional form-fitting connection with reference to the radial direction is thereby achieved.

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

Advantageously, the first abutment region is formed at least partially on the receptacle. A compact construction is thereby 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 replace the bristle tuft chain in a simple manner when the bristles wear or when the application changes.

In a structurally simple embodiment, the locking device is designed as a screw or bayonet connection. The direction of rotation for locking is in particular oriented 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 part 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 construction 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, which slotted elements have respective slots for the abutment elements of the securing element. The slotted element can be formed in particular integrally on the base and in particular on a recessed region of the base. A simple fixability or detachability of the fixation element is obtained.

In one embodiment, a spring element is assigned to the slotted element, which spring element facilitates the rotational fixing of the fastening element on the base. The spring element can latch into a fixed position and thus contribute to a corresponding stop. This fixed position can be released in a simple manner.

The fixing element advantageously has a recess for the foot of the chain link for positive retention, in particular in the axial direction and optionally also in the circumferential direction. A positive fixing, in particular with respect to the axial axis, between the bristle tuft chain and the fixing element can thus be achieved.

Advantageously, the second abutment region is formed at least partially 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 bristle tuft chain.

It can be provided that at least two bristle tuft chains are arranged one behind the other in the radial direction between the first and second abutment regions, wherein adjacent bristle tuft chains are supported in particular relative to one another. It can thus be provided, for example, that the bristle tuft chains are arranged in a plurality of partial circles, wherein the partial circles are in particular coaxial to one another. A brush with a high coverage area with respect to the bristle tufts can thus be realized. The number of parts can be kept small by the mutual support of adjacent bristle tuft chains. In principle only the base, the bristle tuft chain and the fixing elements are required.

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

Especially for a weeder that preferably performs combined wiping and mowing, it is advantageous when at least one of the following is present:

the bristle bundles rest on a partial ring, wherein the number of bristle bundles on the partial ring is in the range between 8 and 22 bundles;

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

-the diameter of the individual bristles is 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 in the bristle bundle, in the unloaded state, make an angle in the range between 40 ° and 60 ° with the symmetry axis (and in particular the axial axis) of the brush;

the brush is designed 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 there is a good compromise between the holding power for the operator and the cleaning effect when the parameters are selected accordingly. In principle, a good cleaning effect should be present and the holding force for the operator should be as small as possible in order to achieve a high operating comfort. By selecting the parameters individually or in combination, a good compromise can be reached 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 sweeping machine and/or scrubbing machine and/or weeding machine.

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 the brush fixing device).

According to the invention, a method for producing a brush according to the invention is proposed, in which method at least one bristle tuft chain is applied to a base, a fastening element is fastened to the base, and the at least one bristle tuft chain is clamped between a first abutment region of the base and a second abutment region of the fastening element, and wherein the at least one bristle tuft chain is fastened in the base and/or the fastening element by means of a form fit.

According to the invention, a method for changing bristle tufts at a brush according to the invention is also provided, in which method the fastening elements are detached from the base, the possibly present bristle tuft chain is removed, and the method described for producing a brush is then carried out.

Drawings

The following description of the preferred embodiments is provided to explain the present invention in detail with reference to the figures. In the drawings:

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

FIG. 2 is a further isometric view of the brush according to FIG. 1;

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

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 chain of bristle tufts extending linearly;

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

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

FIG. 8 is an isometric view of a loop formed by the tuft chain of bristles of FIG. 5;

FIG. 9 is an isometric view of the base of the brush implement according to 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 illustration of the base according to fig. 9, with bristle tuft chains according to fig. 8 arranged on the base;

FIG. 15 is a top view from above of the combination of the base and bristle 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 plan view of the base according to fig. 9 with bristle tuft chains arranged thereon and fastening elements arranged thereon, wherein the fastening elements are not yet in the locking position (in the locking position the view according to fig. 3 results);

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

fig. 19 is an isometric view of the combination of the base according to fig. 17, a tuft chain of bristles and a fastening element;

FIG. 20 is a top view from below of another embodiment of a brush according to the invention, having a plurality of bristle tuft chains which are consecutive in a radial direction; and is

Fig. 21 is an isometric view of an embodiment of a weeding machine as a cleaning machine for use with the brush according to the invention.

Detailed Description

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

The tool head 12 rests on a retaining bar arrangement 18. In particular, the weeding machine 10 with the retaining bar arrangement 18 is configured such that an operator can operate the weeding machine 10 standing on his/her own. The operator stands in particular behind an active surface 20, on which the weeding machine 10 acts.

In principle, it is also possible for the weeding machine 10 to be designed as a handheld device, in which case the retaining bar arrangement 18 can have a corresponding length or be absent.

In the case of the weeding machine 10, a first handle 22 is arranged in the region of the proximal end 14 and in particular in the region of the end of the holding lever arrangement 18. The first handle 22 has a first gripping region 24 configured to be held by a first hand of an operator.

In one embodiment, a switch 26 for operating the mower 10 is disposed on the first handle 22 within the first gripping area 24.

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

First handle 22 thus surrounds opening 30 through which the fingers of the first holding hand can pass.

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

The retaining bar arrangement 18 includes, in one embodiment, a retaining bar 32 that extends in a longitudinal direction 34.

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

The first grip region 24 likewise lies on this central plane and is in particular symmetrical with respect to 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 grip region 40. This second gripping area 40 can be gripped by a second holding hand of the operator. The second gripping area 40 is located transversely to the longitudinal direction 34 and spaced apart from the retaining bar arrangement 18. The second gripping area 40 is formed transversely to the first gripping area 24 or transversely to the center plane.

The second gripping area 40 is formed in particular on a bow 42, which is positioned on the holding area 28 or on the holding bar 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 area 41 is oriented perpendicularly to the central plane and the

areas

41a, 41b are oriented obliquely to this central plane.

The second handle 38 is symmetrical about the central plane. The second handle is particularly D-shaped.

In one embodiment, the mower 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 considered here as an extension of the holding rod arrangement 18 and therefore also as a functional part of the holding rod arrangement 18.

In one embodiment, 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 bar 32 is telescopically inserted. The holding rod 32 can be fixed to the handle unit 44, for example, by means of a stop or a bore.

In one embodiment, the retaining bar arrangement 18 is pivotably 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 mower 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, provision is made for the pivot joint 46 to be very difficult to move or for the pivot joint 46 to be assigned a locking device in order to be able to lock a specific pivot position of the retaining 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 axis of rotation 52 is furthermore oriented transversely and in particular perpendicularly to the pivot axis 48.

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

In particular, it is provided that, when the weeding machine 10 is operated as intended, the implement 54 held on the implement holder 50 acts on the action surface 20, the axis of rotation 52 is oriented transversely to, and for example at least approximately perpendicularly to, the action 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 drive 56 is an electric motor.

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

For example, a spur gear transmission is provided which reduces the rotational speed of the drive 56 from, for example, approximately 9000 revolutions per minute to approximately 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 be driven as an electric motor by mains current in one embodiment or may be provided with, in particular, rechargeable battery means.

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

In the case of operation by means of a battery device, the battery device is positioned in particular on the holding region 28 (or alternatively on the tool head 12). The battery device is removable (in particular for charging) or is firmly fixed to the holding region 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 disk 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 transfer device as described.

A protective shield 64 is provided on the tool head 12. The shield 64 covers the tool 54 downwardly toward the operator. The shield 64 is configured in one embodiment in the form of a baffle 66 that is positioned on the tool head 12 and extends downwardly. The baffle 66 is configured at least approximately as part of a tapered section jacket.

The flapper has a lip formation 68 on a lower end 70. The protective cap 64 can be placed over the active surface 20 by means of this lip formation 68.

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

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

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

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

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

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

In one embodiment, the weeding machine 10 has means 78 for hanging the weeding machine 10 for storage (and thus protection of the implement 54). 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 a holding belt device is provided for the weeding machine 10, and an operator can hold the weeding machine 10 by the holding belt device. Corresponding fastening means (not shown in the figures) for gripping the belt are arranged on the weeding machine 10 and in particular on the holding lever arrangement 18 and/or on the first handle 22.

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

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

The brush 80 is constructed in particular 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 particularly fig. 9-13) includes a bottom wall 86. The bottom wall 86 is annular and in particular circular. The bottom wall is bounded by a first edge 88a and by a spaced second edge 88 b. The first edge 88a and the second edge 88b are each circular and are concentric with respect to one another with reference to the axis 90. The axis 90 is coaxial with the axis of rotation 82. The axis 90 defines an axial direction on the brush 80.

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

The recessed region 92 delimits a space 97 which is at least approximately hollow-cylindrical in shape.

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, 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, in particular, 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 arranging the bottom wall 86 at an angle relative to the axis 90, the base 84 with the recessed region 92 can be configured with a smaller height dimension parallel to the axis 90 (see FIG. 11).

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

In one embodiment, the fixing device 104 comprises a sleeve 106, which is centrally arranged on the bottom 94 and in particular is integrally formed with the bottom 94. A sleeve 106 projects from the side of the base 94 facing away from the recessed region 92.

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

The shaft is provided in particular with a thread.

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

To secure the brush 80 to the vehicle via the base 84, the shaft of the vehicle 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 the opposite direction to the direction of rotation of the brush.

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

The bristle tuft chains 112 are releasably retained on the brush 80; as the bristles wear, the bristles and thus the corresponding bristle tuft chains 112 can be replaced.

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

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

The respective 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, for example, glued into the sleeve 120 or fixed to the sleeve 120 by injection molding.

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

In particular, it is provided here that, for producing the bristle bundle 114, a fold is formed on the individual bristles 116 and is positioned in the receptacle 122 with a fold region. Thus, the two opposing ends of a single bristle form a bristle tip 126 on the bristle bundle 114. The length of the bristle bundle 114 in the unloaded state is then approximately half the length of the individual bristles 116.

Tuft chain 112 has an extension in longitudinal extension direction 126 (fig. 5).

Adjacent links 118 are connected to each other by tabs 128. In particular, it is provided that a tab 128 is provided on the sleeve 120 and is connected to the adjacent sleeve. The tabs 128 are in particular integrally connected with the respective sleeve 120; the tabs 128 form a bridge between adjacent sleeves 120.

The tabs 128 are arranged and/or designed in such a way that the bristle tuft 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 tufts 114 in the unloaded state). This mobility is achieved in particular by corresponding deformability of the webs 128.

Thus achieving a shape-matching of the bristle tuft chain 112. In particular, this enables the bristle tuft chain 112 to be adapted in its shape to the base 84 (see fig. 8). This is explained in more detail below.

In principle, it is also possible for the bristle tuft chain 112 to be closed and to be fastened in this manner to the brush 80.

In one advantageous embodiment, 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.

Bristle tuft chains 112 can be produced, in particular, from a longer chain with a desired number of bristle tufts 114 (corresponding to a desired number of chain links 118), for example by sizing cutting. The longer chains are for example provided as rolls.

The corresponding movement of bristle tuft chains 112 toward each other in transverse direction 130 by link 118 has the desired shape for securing this bristle tuft chain to base 84. The longitudinal extent 126 then has a change in orientation (see fig. 8), which correspondingly matches the geometric configuration of the base 84.

The bushings 120 of the link 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.

The

legs

136, 138 serve for form-fitting fastening to the brush 80, in particular in the direction of the axis 90.

The links 118 are in particular designed to be mirror-symmetrical about a mirror axis oriented perpendicular to the transverse direction 130.

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

The sleeve 120 has at least one approximately hexagonal outer contour 140. With reference to the center line 142, the sleeve has a width B (see fig. 7) which decreases perpendicularly to the center line 142 (in the transverse direction 130) in the direction of the first leg 136 and also perpendicularly to the center line 142 (in the transverse direction 130) in the direction of the second leg 138.

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

The sleeve 120 having a width B has a depth T perpendicular to the midline 142 (parallel to the lateral direction 130). The tab 128 is located on the midline 142, wherein the tab 128 has a depth that is less (in particular, substantially less) than the depth T of the sleeve 120.

The grooves 124 are situated in particular in a corresponding 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 centerline 142).

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

In particular, the first side 144a and the second side 144b are also provided to be flat.

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

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

The base 84 has a receptacle 146 for each link 118 (sleeve 120 of bristle tuft chain 112). The receptacle 146 is formed by spaced apart

tab elements

148a, 148b (see, e.g., fig. 9).

Tab elements

148a, 148b are arranged on edge wall 98 and in one embodiment project as far as bottom wall 86. The tab element is in particular integrally arranged on the edge wall 98 and is integrally connected to the bottom wall 86.

A space 150 for partial insertion of the sleeve 120 is formed between

adjacent tab elements

148a, 148 b.

The space 150 tapers in particular in its width to the edge wall 98, in accordance with the wedge-shaped design of the sleeve 120. The

web elements

148a, 148b are configured accordingly.

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

In the illustrated embodiment, each receptacle 146 has its

own tab element

148a, 148 b. This saves material when manufacturing the base 84.

The

tab elements

148b, 148b project away from the edge wall 98. Due to the described tapering to the edge wall 98, the tab element is often not aligned exactly in the radial direction 152.

The tab elements have a length in the direction of their projection away from the edge wall 98, which is such that the tab 128 is located in front of 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

web elements

148a, 148b and has an extent in the circumferential direction 156 and an extent in the radial direction 152.

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

In particular, a plurality of recesses 154 are arranged at intervals, preferably uniformly at intervals, along the circumferential direction 156 on the base 84.

The recess 154 is for receiving the

standoff

136 or 138; each leg can be inserted into a recess 154. The recess 154 matches the dimensions of the

legs

136, 138. When the

feet

136 and 138 of the bristle tuft chain 112 are inserted into the respective recesses 154, then a form-fitting fixing, in particular with respect to the axial axis 90, is achieved thereby.

In principle, a dynamic reversal can be achieved, in which case the foot is formed on the base and the insertion recess for the foot is formed on the chain link.

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

The bristle tuft chain 112 is shaped in such a way that it follows the contour of the edge wall 98 (see also fig. 8). Each link 118 and its sleeve 120 are inserted into the receptacle 146 between the

web elements

148a, 148 b. The

respective leg

136 or 138 is guided into the respective groove 154.

The base 84 has a first abutment region 158 for abutment against the bristle tuft chain 112. The first abutment region 158 is formed by an intermediate surface between the

web elements

148a, 148b, which intermediate surface corresponds to the abutment surface of the

web elements

148a, 148b and to the abutment surface (support surface) of the bottom wall 86. In this first abutment region 158, the sleeve 120 abuts against 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 the respective sleeve 120 rests against the edge wall 98 in the region between the

tab elements

148a, 148 b. The bottom side of the sleeve 120 is supported on the bottom wall 86.

The brush 80 also comprises a fixing element 160 which can be locked to the base 84 by means of a locking device 162. The fastening element 160 in turn has a second abutment region 164 with which the fastening element acts on the tuft chain 112 and in this case in particular on the sleeve 120, wherein the tuft chain 112 is clamped between the first abutment region 158 of the base 84 and the second abutment region 164 of the fastening element 160 when the fastening element 160 is fastened to the base 84.

The locking device 162 is designed such that the fastening element 160 can be locked to the base 84 by a rotational movement about a rotational axis which is coaxial with the rotational axis 82 or coaxial with the axis 90 or can be unlocked 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 can be removed as a whole from the brush 80, i.e. completely detached from the base 84. This allows an already used bristle tuft chain 112 to be removed in a simple manner or a new bristle tuft chain 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 elements 166 are arranged on the base 84.

In the illustrated embodiment, three slotted members 166 are provided. The slotted element 166 is here positioned on the bottom 94 of the recessed region 92.

The slotted element 166 comprises a tab 168 which is connected to the base 94 and in particular is integrally connected thereto. A slot 170 is formed between the tab 168 and the base 94.

In this case, it is possible, in order to simplify the production of the slotted element 166, to form an opening 172 in the base 94 opposite the slot 170 (see, for example, fig. 1).

The securing element 160 is configured in a ring shape with a ring wall 174 and a bottom wall 176. The annular wall 174 rises from the 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 slotted elements 166.

The gaps are located between adjacent tongues 178, in particular in the axial direction 156.

The tongue 178 is configured for insertion into the slot 170.

In this case, it can be provided 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 allow 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 member 160 is locked to the base 84 in the locked position, the spring member 180 is positioned within the receiving member 184.

The receiving member 184 is a part of the slotted member 166 and is separated from the remainder of the slotted member 166 by, inter alia, a slot 186.

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

A stop element 188, which is configured, for example, in the form of a tab, is arranged on the fastening element 160. The stop element 188 is positioned in particular at 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 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, in which the stop element 188 rests on the end face region 192 (see fig. 2) of the associated slot element 166 (web 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 an area 194 for abutting 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 detached from the base 84 by a corresponding rotational movement.

The annular wall 174 of the retaining element 160 also has a region 196 which is intended to bear against the first side 144a of the sleeve 120 of the bristle tuft chain 112. Tuft chain 112 may be clamped between first abutment region 158 and second abutment region 164 by region 196.

In addition, the fixing element 160 has a plurality of circumferentially spaced recesses 198 or a continuous annular recess 198. This recess or recesses 198 is/are located between the

regions

194 and 196 and serves to accommodate the respective first leg 136 of the bushing 120 of the link 118 of the bristle tuft chain 112. The respective support 136 is inserted into the associated recess 198 when the fastening element 160 is fastened to the base 84 (see, for example, fig. 18). This forms a positive fit and thus a stop which prevents the bristle tuft chain 112 from being lifted off the base 84 and the retaining element 160.

In principle, a dynamic reversal is also possible, in which case the foot is arranged on the fastening element and the associated insertion groove is arranged on the chain link.

The second contact region 164 of the fastening element 160 for contacting 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 produced in particular as follows:

starting from the base 84 (see fig. 9 to 13), a correspondingly selected bristle tuft chain 112 (in which the number of chain links 118 corresponds to the number of receptacles 146) is positioned on the base 84. The sleeve 120 is inserted into the respective receptacle 146 between the

web elements

148a, 148b, the sleeve 120 then being supported on the bottom wall 86 (see fig. 14 to 16). The fixation elements 160 are then nested, that is, with the tabs 178 between adjacent slotted elements 166 (fig. 17-19).

The fixing element 160 is then rotated in the direction of rotation 190 (fig. 17). Thereby inserting the tongue 178 into the associated slot 170. This insertion position corresponds to the position according to fig. 1 to 4.

The rotation in the direction of rotation 190 is performed 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 possible to position the respective spring element 180 on the respective receiving element 184.

Thereby completing a kind of snap lock and ensuring 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 therefore cannot be disengaged by the rotation.

In its retaining position, the retaining element 160 acts on the bristle tuft chain 112, to be precise on the first side 144 a. The fixing 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 fixing element 160.

The feet 136 of the bristle tuft chain are inserted into the recesses 198 in the holding element 160.

The bristle tuft chains 112 are fixed to the base 84 and to the fixing elements 160 by means of form-fitting devices. By the

feet

136, 138 and by insertion into the

recesses

154 or 198, a form-fitting connection about the axis 90 is formed as an axial stop against lifting. Furthermore, a form fit in the circumferential direction 156 (including the reverse direction) may be achieved.

By positioning the sleeve 120 between the

tab elements

148a, 148b, a form fit with reference to the circumferential direction 156 is formed.

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

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

In order to change the bristle tufts by changing the bristle tuft chain 112, the brush 80 does not have to be removed from the tool holder of the cleaning machine. The base 84 may remain fixed to the tool holder. The detachment of the fixing elements 160 and the detachment of the bristle tuft chains 112 or the insertion of the bristle tuft chains 112 and the sheathing of the fixing elements 160 and the subsequent fixing of the fixing elements can be carried out from one side, facing away from the tool holder. This is marked in fig. 16 by a double arrow with reference number 200.

The design of the bristle tuft chain 112 with the corresponding design and arrangement of the bristle tufts 114 is adapted to the respective application.

In one embodiment, the brush implement is configured as a cup-shaped brush for a weeder 10 that is a cleaning machine. The bristle bundles 114 are in particular in a partial circle (formed by the edge wall 98 with the receptacle 146).

Provision is made in particular for:

the number of bristle bundles 114 resting on the partial ring on the brush 80, ranges between 8 and 22 bundles; and/or

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

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

The free length of the single bristle 116 as this single bristle for protruding from the respective sleeve 120 ranges between 50mm and 70mm in the unloaded state; and/or

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

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

It has been shown that with these values an optimum match in terms of holding power and cleaning efficiency for the operator of the weeding machine 10 can be achieved. Weeding can be achieved in particular by a combination of cutting and cleaning. In this context reference is made to the unprecedented international application PCT/EP2018/057793, 3, 2018, 27, which is incorporated herein in its entirety.

The brush 80 according to the invention can also be used for other applications, such as cleaning applications. In particular, the matching to the respective application can be carried out by a corresponding selection of the bristle tuft chain 112.

The corresponding brush 80 can be used for hand-held or manually guided machines or also for self-propelled machines such as sweeping machines. Cleaning applications (scrubbing applications) and the like are for example also possible.

In principle, it is also possible to provide a brush 220 (fig. 20) having a plurality of bristle tuft chains 222 which are spaced apart radially.

The bristle tuft chains 224 are particularly supported on the base 226 as described above. Another bristle tuft chain 228 is then supported on the bristle tuft chain 224. The fixing element 230 is supported on the bristle tuft chain 228 and in this case clamps the

bristle tuft chains

224 and 228 between a first abutment region 232 of the base 226 and a second abutment region 232 of the fixing element 230.

In principle, a form-fitting connection between the

bristle tuft chains

224 and 228 can also be provided here with reference to the axial axis.

At least one foot provides a positive connection of the bristle strand chains 224 to the base 226 and of the bristle strand chains 228 to the fastening elements 230.

Here, it is also possible, 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 are supported on one another.

It is also possible for more than two bristle tuft chains 222 to follow one another in the radial direction.

According to the invention, a

brush

80 or 220 is provided in which bristle tufts can be replaced in a simple manner by replacing the tuft chain 112 or the like when the bristles are worn. The

respective brush

80 or 220 does not have to be removed from the tool holder for this purpose; the

respective mount

84 or 226 may be fixedly held there.

A material-saving design which is simple to replace is thus obtained. Furthermore, a high degree of adaptation to the particular application is obtained.

In principle, it is also possible to use bristle tuft chains 112 with at least two chain links 118 on a part circle. It is preferred for the operator to use only one bristle tuft chain 112 on a partial circle. This facilitates the suitability for the production of the brush 80 in particular.

List of reference numerals

10 weeding machine

12 tool head

14 distal end

16 proximal end

18 holding rod device

20 acting surface

22 first handle

24 first gripping area

26 switch

28 holding area

30 opening

32 holding rod

34 longitudinal direction

38 second handle

40 second grip region

41 central region

41a, b area

42 bow member

44 handle unit

46 pivoting hinge

48 pivot axis

50 tool holder

52 axis of rotation

54 tool

56 driver

58 casing

60 electric cable

62 disc

64 protective cover

66 rims

68 lip-shaped structure

70 lower end part

72 space

78 device for hanging preservation

80 brush

82 axis of rotation

84 base

86 bottom wall

88a first edge

88b second edge

90 axes (axial)

92 recessed area

94 bottom part

96 ring shaped wall

97 space

98 edge wall

100 acute angle

102 acute angle

104 fixing device

106 sleeve

108 opening

110 inner space

112 bristle bundle chain

114 bundle of bristles

116 Single bristle

118 chain link

120 sleeve

122 accommodating part

124 groove

126 longitudinal extension direction

128 tab

130 transverse direction

132 first end portion

134 second end portion

136 first leg

138 second leg

140 outer contour

142 center line

144a first side surface

144b second side

146 receiving portion

148a tab element

148b tab element

150 space

152 radial direction

154 groove

156 circumferential direction

158 first abutment region

160 fixing element

162 locking device

164 second abutment area

166 slotted element

168 contact piece

170 slotting

172 opening

174 annular wall

176 bottom wall

178 tongue

180 spring element

182 slotted

184 containing element

186 slotted

188 stop element

190 direction of rotation

192 end face area

194 area

Region 196

198 groove

200 mounting direction

220 brush set

222 bristle tuft chain

224 bristle tuft chain

226 base

228 bristle bundle chain

230 fixing device

232 first abutting area

234 second abutment region

236 Sleeve

Claims

1. Brush for a cleaning machine (10), said brush comprising: a base (84) having a first abutment region (158); at least one bristle strand chain (112) having a plurality of chain links (118), wherein at least one bristle strand (114) is fixed to one chain link (118); and a securing element (160) having a second abutment region (164), wherein the securing element (160) is secured with the base (84) and the at least one bristle tuft chain (112) is clamped between the first abutment region (158) and the second abutment region (164).

2. A brush implement according to claim 1, characterized in that the at least one bristle tuft chain (112) is held on the base (84) and/or on the fastening element (160) by means of a form-fitting device, wherein in particular a form-fitting element (144a, 144b, 136, 138) is arranged on the at least one bristle tuft chain (112) and an abutment element (86, 148a, 148b, 154, 198) is arranged on the base (84) and/or on the fastening element (160).

3. A brush implement according to claim 1 or 2, characterized in that the fixing element (160) is detachably connected to the base (84).

4. A brush implement according to anyone of the preceding claims, characterized in that the at least one bristle tuft chain (112) is detachably connected to the base (84) and/or the holding element (160).

5. A brush implement according to anyone of the preceding claims, characterized in that adjacent links (118) are interconnected by means of a web (128).

6. A brush implement according to anyone of the preceding claims, characterized in that said at least one bristle tuft chain (112) has a longitudinal extension direction (126) and has a movability in a direction (130) transverse to said longitudinal extension direction (126).

7. A brush implement according to claim 6, characterized in that the chain link (112) has at least one foot (136; 138) which extends transversely to the longitudinal extension direction (126).

8. A brush implement according to claim 6 or 7, characterized in that the chain links (118) are constructed mirror-symmetrically.

9. A brush implement according to anyone of the preceding claims, characterized in that the chain link (118) has at least one receptacle (122) for a bristle tuft (114), in particular the chain link has exactly one receptacle (122) for a bristle tuft (114).

10. A brush implement according to claim 9, characterized in that the bristle tufts (114) are held fixedly in the associated receptacles (122).

11. A brush implement according to claim 9 or 10, characterized in that the bristle tufts (114) are inserted into the associated receptacles (122) or are held or glued into the associated receptacles by means of injection molding.

12. A brush implement according to anyone of the preceding claims, characterized in that the individual bristles (116) form with their two ends the bristle tips of the bristle tufts (114).

13. A brush implement according to anyone of the preceding claims, characterized in that the bristle tuft chain (112) is provided as a web.

14. A brush implement according to anyone of the preceding claims, characterized in that the at least one bristle tuft chain (112) has a first end portion (132) and a second end portion (134) which are not connected to each other.

15. A brush implement according to anyone of the preceding claims, characterized in that the chain link (118) comprises at least one sleeve (120) as a receptacle (122) for bristle tufts (114).

16. A brush implement according to claim 15, characterized in that abutment surfaces (144a, 144b) for the first abutment zone (158) and/or the second abutment zone (164) are formed on the at least one sleeve (120).

17. A brush implement according to claim 15 or 16, characterized in that at least one tab (128) for connecting with an adjacent link (118) and/or at least one foot (136; 138) for fixing with a form fit with the base (84) and/or the fixing element (160) is arranged on the sleeve (120).

18. A brush implement according to anyone of claims 15-17, characterized in that the sleeve (120) has, at least in regions, a width which decreases in one direction with respect to the outer contour, said width matching an associated receptacle (146) of the base (84).

19. A brush implement according to anyone of the preceding claims, characterized in that the base (84) comprises a fixing device (104) for fixing, and in particular detachably fixing, the brush implement to a tool holder (50) of the cleaning machine (10).

20. A brush implement according to claim 19, characterized in that said holding means (84) is arranged and constructed such that said holding element (160) and said at least one bristle tuft chain (112) can be detached from said base (84) and can be positioned on said base (84) when said base (84) is held on said tool holder (50) by said holding means (104).

21. A brush implement according to anyone of the preceding claims, characterized in that the base (84) has a plurality of receptacles (146) for the chain links (118).

22. A brush implement according to claim 21, characterized in that the receptacle (146) has web elements (148a, 148b) adjacent in the circumferential direction (156), between which the chain link (118), in particular with the sleeve (120), is placed, wherein the chain link (118) is held in a form-fitting manner in the circumferential direction (156) by the web elements (148a, 148 b).

23. A brush implement according to claim 22, characterized in that between adjacent tab elements (148a, 148b) a receiving space is formed, the width of which in radial direction (152) diminishes towards the edge wall of the base (84).

24. A brush implement according to claim 22 or 23, characterized in that the tab (128) of the at least one bristle tuft chain (112) connecting adjacent links (118) to each other is positioned in front of the tab elements (148a, 148b) of the base (84).

25. A brush implement according to anyone of claims 21 to 24, characterized in that the receiving portion (146) has a recess (154) for a foot element (136; 138) of the chain link (118), wherein in particular the chain link (118) is held in the axial direction (90) in a form-fitting manner by the foot element (136; 138) inserted into the recess (154).

26. A brush implement according to anyone of claims 21 to 25, characterized in that the base (84) has a circumferential edge wall (98) on which tab elements (148a, 148b) and/or recesses (154) for form-fittingly retaining the at least one bristle tuft chain (112) are arranged or formed.

27. A brush implement according to claim 26, characterized in that the base (84) has a bottom wall (86) at which the surrounding edge wall (98) protrudes, wherein the bottom wall (86) has a support area for the chain links (118) of the at least one bristle tuft chain (112).

28. A brush implement according to claim 27, characterized in that the bottom wall (86) is oriented obliquely to the axial axis (90) and/or to the first abutment area (158).

29. A brush implement according to claim 27 or 28, characterized in that the base (84) has a recessed area (92), which is surrounded by the bottom wall (86).

30. A brush implement according to anyone of the claims 21 to 29, characterized in that the first abutment zone (158) is at least partially formed on the receptacle (146).

31. A brush implement according to anyone of the preceding claims, characterized by having locking means (162) for the securing element (160) for locking onto the base (84), wherein the locking position of the securing element (160) on the base (84) can be established and released by rotation of the securing element (160) relative to the base (84).

32. A brush implement according to claim 31, characterized in that the locking device (162) is configured as a screw device or a bayonet coupling.

33. A brush implement according to claim 32, characterized in that 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 bristle tuft chain (112).

34. A brush implement according to claim 32 or 33, characterized in that a plurality of slotted elements (122) are arranged on the base (84), said slotted elements having respective slots (170) for the abutment elements (178) of the fixing element (160).

35. A brush implement according to claim 34, characterized in that a spring element (180) is assigned to the slotted element (122), which spring element contributes to the rotational fixing of the fixing element (160) on the base (84).

36. A brush implement according to claim 34 or 35, characterized in that at least one stop element (188) for the slotted element (122) is arranged on the fastening element (160), which stop element abuts in the locking position.

37. A brush implement according to anyone of the preceding claims, characterized in that the fixing element (160) has recesses (198) for the legs (136; 138) of the chain link (118) for form-fitting retention, in particular in the axial direction (90).

38. A brush implement according to anyone of the preceding claims, characterized in that the second abutment zone (164) is formed at least partially on the outside of the wall of the fixing element (160).

39. A brush implement according to anyone of the preceding claims, characterized in that at least two bristle tuft chains (222, 224) are arranged one after the other in a radial direction (152) between the first abutment region (158) and the second abutment region (164), wherein adjacent bristle tuft chains are supported with respect to each other.

40. A brush implement according to any of the preceding claims, characterized in that it has a construction as a rotary brush implement.

41. A brush implement according to anyone of the preceding claims, characterized by at least one of the following features:

-the bristle bundles (114) are placed on a part circle, wherein the number of bristle bundles (114) on the part circle is in the range between 8 and 22 bundles;

-the number of individual bristles (116) in a bundle of bristles (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 an unloaded state is in a range between 50mm and 70 mm;

-an individual bristle (116) of a bundle of bristles (114) makes an angle in the range between 40 ° and 60 ° with the symmetry axis of the brush in the unloaded state;

the brush is designed to operate 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.

42. Cleaning machine comprising at least one brush (80; 220) according to any one of the preceding claims.

43. Cleaning machine according to claim 42, in particular configured as a sweeper and/or washer and/or weed killer (10).

44. A cleaning machine as claimed in claim 42 or 43, characterized by a drive (56) for the rotary movement of the at least one brush (80; 220).

45. Method for producing a brush according to one of claims 1 to 41, wherein at least one bristle tuft chain (112) is applied to a base (84), a fixing element (160) is fixed to the base (84), and the at least one bristle tuft chain (112) is clamped in between a first abutment region (84) of the base (84) and a second abutment region (164) of the fixing element (160), and wherein the at least one bristle tuft chain (112) is fixed to the base (84) and/or to the fixing element (160) by form fit.