WO2013110623A1

WO2013110623A1 - Coupling module of a brush disc or a pad driving plate, and brush disc or pad driving plate

Info

Publication number: WO2013110623A1
Application number: PCT/EP2013/051168
Authority: WO
Inventors: Jürgen BELLE; Wolfgang Götz; Gerhard Pecher
Original assignee: Süddeutsche Bürsten- Und Kunststofffabrik Eugen Gutmann Gmbh
Priority date: 2012-01-23
Filing date: 2013-01-23
Publication date: 2013-08-01
Also published as: DE102012205483A1; ES2564032T3; DE102012205483B4

Abstract

Coupling module for being arranged between a drive of a floor-cleaning machine and a cleaning disc, in particular a brush disc or a pad driving plate, wherein the coupling module has a machine coupling, which corresponds to the machine and can be released by rotation, and has a disc coupling, which corresponds to the disc and likewise can be released by rotation, wherein the disc coupling has holding sections and insertion cutouts, which are situated between the holding sections, such that, in an insertion position, disc-side coupling sections can be introduced axially into the insertion cutouts and made to engage behind the holding sections by rotation, and wherein latching means are provided for tool-free releasable latching of the coupling module, when a fastening position is reached, such that the rotation force for releasing the latching of the coupling module and the disc is greater than the force for releasing the coupling module 10 from the machine coupling.

Description

Kupplungsmodul einer Bürstenscheibe oder einem Pad-Treibteller, sowie Bürstenscheibe oder Pad-TreibtellerClutch module of a brush disc or pad drive disc, and brush disc or pad drive disc

The invention relates to a coupling module for the arrangement between a drive of a floor cleaning machine and a cleaning disk, in particular a brush disk or a pad drive disk.

From the prior art it is known to provide brush discs with coupling portions which are inserted for coupling the brush disc to a machine-side interface or a flange in an insertion axially into Einführaussparungen and by twisting and / or pressing and locking the brush disc with flange-side holding sections Reaching a fixing position come into the rear grip. The brush disc is thus placed bayonet first in the axial direction and then secured by twisting and / or pressing and snapping.

Such brush discs or clutches are known for example from DE 195 05 344 C1, DE 82 24 041 U1, DE 93 02 184 U1 or US 3,600,735.

From DE 44 34 520 A1 a brush disc is known, are provided in the mushroom-like pins, which serve to mount the bayonet. For this purpose, the mushroom-like pins are first axially introduced into central, expanded areas of flange-side mold slots and then rotated, so that the pins are brought by connection areas in narrower slot parts. The mushroom hats of the pins forming the coupling sections then engage behind the flange areas laterally next to the narrower slot parts. In addition, the pins are held in their position by spring means.

It is known that different machine manufacturers provide different machine coupling systems. Depending on the coupling system of the machine manufacturer then different cleaning discs must be obtained from the user. For coupling the disks to the machines, disk-side metallic sections are frequently provided which are required for introducing force into the torque and / or for protecting the coupling geometries in the disk. As a result, the discs are comparatively heavy and also expensive to manufacture. Furthermore, it has been found that recycling the discs is not or only partially possible, since the disc as such is often made of plastic and the coupling portions, which interact with the machine, are made of metal.

The coupling of the disc to the machine is usually done by releasably twisting and / or pressing and snapping the disc to the machine.

The present invention is based on the object to remedy the disadvantages mentioned. The disc should in particular be inexpensive to produce and also be recyclable.

This object is achieved by a coupling module with the features of claim 1. The coupling module thus serves for the arrangement between the drive of the floor cleaning machine and the cleaning disk. The coupling module provides for a machine coupling, for coupling with the machine-side, specified by the manufacturer interface, and a disc clutch, for coupling with the cleaning disk before. The disc clutch as such comprises holding portions and insertion recesses located between the holding portions, in such a way that in an insertion position disc-side coupling portions are inserted axially into the Einführaussparungen and brought into rotation by turning with the holding portions. In this case locking means are provided with which a tool-free releasable locking of the coupling module is made possible on the disc. The torque for releasing the locking of the clutch module and disc is greater than the force and in particular the torque for releasing the engine clutch. This ensures that when removing the cleaning disc from the machine, the coupling module remains on the disc. The cleaning disk together with the coupling module can be replaced in a simple and user-known manner. Only if the user wants to change the disc, for example because it is worn, it can solve the coupling module of the disc tool-free and use in a new, or a different type of detergent / different bristles having disc. If the user operates machines with different interfaces, and especially from different machine manufacturers, he can also use one and the same disk by exchanging the coupling module with different machines. This is because preferably the machine coupling of the coupling module, as already mentioned, is predetermined by the machine manufacturer. On the other hand, the disc clutch of the clutch module can always be identical, so that with a clutch module different discs can be operated. It is also advantageous that when the washer is worn only the disc without the coupling module can be disposed of. The coupling module as such can be used further.

Advantageously, it is conceivable that the machine coupling is formed by a driver ring and the disk clutch by a disk ring arranged on the driver ring. The driving ring may be made of metal, for example, and the disc ring may be made of plastic, for example. The driving ring and the disc ring can be connected to each other in particular by screws, welding, gluing, riveting, encapsulation. It is also conceivable that the driving ring and the disc ring are integrally formed, in particular made of plastic or metal.

As latching means for locking the coupling module to the disc resilient in particular in the axial or radial direction resilient locking lugs and cooperating locking recesses may be provided. In particular, latching lugs may be provided on the module or on the disk, which then engage in cooperating latching recesses provided on the disk or on the module or cooperate therewith. The latching lugs or locking means may in particular be formed integrally with the coupling module.

In a further advantageous embodiment of the invention, it is provided that at least one holding section has an in the fastening position in the rear handle counter portion which comes so in operative contact during rotation of the brush disc together with a joint portion provided on the coupling portion, so that a play-free alignment of the coupling module with respect Brush disc is done. Consequently, not only the coupling module-side holding portions engage behind the disk-side coupling portions, but in addition, the holding portions on opposite portions, which come into operative contact with the disk-side joining portions, so that a play-free alignment of the coupling module with respect to the cleaning disk can be achieved. The play-free alignment is given in particular in the axial and / or radial direction. In particular, a centering of the coupling module with respect to the brush disc can be ensured. Overall, this leads to a better smoothness of the cleaning disc on the machine during operation of the machine.

Preferably, the at least one mating section and / or the at least one guide section are designed such that they engage with one another in a form-fitting manner at least in sections when the fastening layer is rotated.

The counterpart section can be provided at least on a contact section of the at least one holding section extending along the twisting direction. Direction of rotation is the direction in which the disc or the coupling module is rotated to get into the mounting position.

Advantageously, the holding section has two sections extending along the direction of rotation, on which sections which are substantially mirror-symmetrical to one another are provided. Such a design has the advantage that, depending on the clockwise or counterclockwise rotation of the machine, in each case one countersection can come into engagement with the associated guide section.

As such, the counterpart section can be designed in particular as a wedge or as a wedge recess, with the wedge or the wedge recess providing two wedge surfaces enclosing an angle. A wedge recess is a wedge-complementary recess into which a wedge can engage. The median plane of the wedge angle or the wedge recess is in particular arranged so that it extends in the plane of the coupling module or perpendicular thereto. The coupling module level is the plane in which the coupling module is located. The provision of a wedge or a wedge recess has the advantage that during the transfer of the coupling module from the insertion position into the fixing position on the basis of the wedge, or the wedge recess, a centering of the coupling module can take place with respect to the disc.

Furthermore, it is conceivable that the wedge or the wedge recess has an insertion bevel, which forms an acute angle with the coupling module plane, or a plane extending perpendicularly thereto. By such an insertion be ensured that in addition to a centering and a favorable insertion of the mating sections can be made with regard to the guide sections. In addition, it can be ensured that in the mounting position the coupling module can assume a predetermined position with respect to the disk, in particular in the axial direction.

The insertion bevel can be formed as a flat surface. It is also conceivable that the insertion beveled is spherical.

In a further embodiment of the invention it is provided that the counterpart section is formed as chamfering such that the chamfering includes an acute angle γ 'on the one hand with a plane perpendicular to the axes of rotation of the disc and on the other hand with an axial plane perpendicular to the radial plane and through the axis of rotation includes an obtuse angle δ '. The chamfering is thus designed such that it is not perpendicular to the radial plane nor perpendicular to the axial plane. The angle γ 'preferably has a value of 35 ° to 55 ° and is preferably in the range of 45 °. The angle δ ', which is preferably measured from a chamfering or limiting axial plane in the direction of rotation towards beveling, has in particular a value in the range of 95 ° to 130 ° and preferably in the range of 100 ° to 110 °.

The chamfering can be designed as such as a straight plane or slightly curved plane or slightly convex. Preferably, the chamfer has a triangular or trapezoidal contour in plan view of the chamfer, ie along its normal vector.

The provision of such a design has the advantage that, when the guide portion is complementary to the mating portion, the counter portion and the guide portion come into operative contact during rotation of the coupling module, whereby on the one hand a centering in the radial direction and / or on the other a play-free concern in axial direction can be ensured.

In another embodiment, it is conceivable that the counter portion is formed as a web or as a web recess. The web or the web recess can lie on a circular path that runs around the axis of rotation of the coupling module. The web or the web recess can be rectangular or triangular in cross section or even bent. In addition, it is conceivable that the cross-sectional area of the web and the web recess decreases or increases along its or their longitudinal extent in the twisting direction.

It is also advantageous if the locking means are arranged on the holding portions.

The object mentioned at the outset is also achieved by a cleaning disk, in particular a brush disk or a pad drive disk, for a floor cleaning machine for arrangement on a coupling module according to the invention. The cleaning disk has thereby coupling portions, which are engaged behind by the holding portions in the mounting position, wherein at least one coupling portion has a guide portion which comes into operative contact with the counter portion during rotation, that a play-free alignment of the disc takes place with respect to the coupling module.

In this case, locking means for releasably releasable locking of the disc on the coupling module can be provided on reaching the mounting position in particular also on the cleaning disc.

Advantageously, the cleaning-disk-side coupling sections and associated latching means are designed such that the twisting force for releasing the latching of the coupling module and the disk is greater than the twisting force for releasing the machine coupling. This achieves, as already described above, that the cleaning disk together with the coupling module can be removed from the cleaning machine without the coupling module detaching itself from the cleaning disk.

The cleaning-disk-side guide sections are in particular designed to be complementary to the associated coupling module-side counterpart sections.

The object mentioned in the introduction is also achieved by a coupling system which has a coupling module according to the invention and an associated cleaning disk.

Further details and advantageous embodiments of the invention will become apparent from the following description, with reference to which the embodiments illustrated in the figures are described and explained in detail.

Show it:

Figure 1 is a perspective view of a coupling module;

Figure 2 is a detail of a perspective view of a brush disc;

Figures 3

to 5 different views of sections of the brush disk according to Figure 2;

FIGS. 6

to 8 different views of sections of the coupling module of Figure 1;

Figures 9

and FIG. 10 two views of partial cutouts of the brush disk with the coupling module shortly before reaching the fastening position;

Figures 11

and FIG. 12 two views of partial cutouts of the brush disk and of the coupling module upon reaching the fastening position;

Figure 13 is a perspective view of a coupling module of another embodiment;

FIG. 14 shows a perspective view of a brush disk for arrangement on the coupling module according to FIG. 13;

FIG. 15a shows a further coupling module according to the invention;

FIG. 15b shows a further coupling module according to the invention;

FIG. 15c shows a disk ring of a coupling module and a brush disk according to a further embodiment;

Figure 16 is an enlarged view of the disc ring of Figure 15c;

17 shows a section of a holding section according to FIG. 16;

FIG. 18 shows a detail of the brush disk according to FIG. 15c;

FIG. 19 a section of a coupling section according to FIG. 18;

FIG. 20 shows a detail of the clutch disk with the disk ring according to FIG. FIG. 15c in the insertion position;

FIG. 21 shows the insertion position according to FIG. 20 in partial section;

FIG. 22 shows the section according to FIG. 20 in the fastening position;

FIG. 23 shows the detail according to FIG. 22 with partly hidden edges.

FIG. 1 shows a coupling module 10 of a floor cleaning machine to which a cleaning disk and in particular a brush disk 12, as shown in detail in FIG. 2, can be arranged.

The coupling module 10 has on its upper side a machine coupling 11 corresponding to the cleaning machine and on its underside a disk clutch 13 corresponding to the cleaning disk 12. The machine coupling 11 is formed in the embodiment of Figure 1 and also according to Figure 13 of three projecting axially upward mushroom-headed pin 15, which are provided for rotational coupling with a machine-side, given by the machine manufacturer interface. FIGS. 15a and 15b show

other coupling modules

48, 50 with other machine couplings 11 for other interfaces specified by the machine manufacturer.

The disc clutch 13 provides protruding holding portions 14 in the radial direction.

The brush disc 12 provides a central receptacle 16 into which the coupling module 10 can be inserted in the axial direction. On the brush disc 12 radially outwardly projecting coupling portions 18 are provided. When joining the brush disk 12 with the coupling module 10, these coupling portions 18 are brought into insertion recesses 20 located between the holding portions 14. Subsequently, the brush disk 12 is rotated relative to the coupling module 10, so that the coupling portions 18 engage behind the holding portions 14 at least in sections.

As becomes clear in particular from FIGS. 3, 4 and 5, the coupling sections 18 have guide sections in the form of wedges 22. As is clear in particular from FIG. 5, the wedges 22 have wedge surfaces 23 enclosing a wedge angle α which run perpendicular to the brush disk plane 27 formed by the brush disk 12, which is indicated in FIG. The wedges 22 are provided on the transverse to the direction of rotation 24 side of the coupling portions 18.

As can be seen in particular from FIG. 4, the wedges 22 have an insertion bevel 26 which encloses an acute angle β with the brush disk plane 27.

The insertion bevel 26 as such is designed as a straight plane. However, it is also conceivable that the insertion bevel may be spherical.

Complementary to the wedges 21 are provided on the coupling module 10, or at the holding portions 14, counter portions which are formed as wedge recesses 28. The wedges 22 of the coupling portions 18 come, as shown in Figures 11 and 12, in the mounting position into engagement, ie in operative contact with the formed as wedge recesses 28 opposite portions of the coupling module 10th

The wedge recesses 28 likewise have wedge surfaces 30 enclosing a wedge angle, which can be clearly seen in particular in FIG. 8 and which run perpendicular to the coupling module plane 38. The wedge recesses 28 also have an attachment bevel 32 running parallel to the insertion bevel 26.

As is clear from FIGS. 2 to 5, each coupling section 18 provides two guide sections in the form of wedges 22, which are provided on the sides facing away from each other and extend transversely to the direction of rotation. In addition, as is clear from FIGS. 1, 6 to 8, each coupling module-side holding section 14 correspondingly provides two mutually opposite, mirror-symmetrically shaped mating sections in the form of the wedge recesses 28.

When joining the disc 12 with the coupling module 10, the coupling portions 18 are consequently introduced into the insertion recesses 22, as already described. Depending on the direction in which the disk 12 and the coupling module 10 is rotated, come facing wedges 21 and wedge recesses 28 in operative contact. The holding portions 14 in this case provide substantially rearward engagement surfaces 34 which extend substantially perpendicular to the axis of rotation of the coupling module 10 and which engage with coupling portion side, likewise essentially perpendicular to the axis of rotation of the disk 10, during rotation of the disk 12 or of the coupling module 10 out of the insertion position into the fastening position interact. In Figures 9 and 10, this intermediate layer is shown.

In the mounting position, which is shown in Figures 11 and 12, the wedges 22 engage in the wedge recesses 28 and the insertion bevels 26 come to the Anlageschrägen 32 for concern.

By engaging the wedges 22 with the wedge recesses 28, the disc 12 can assume a positionally accurate position with respect to the coupling module 10 and, in particular, centering of the disc 12 on the coupling module 10 can be provided. By the interaction of the chamfers 26 with the Anlageschrägen 32 ensures that no axial play between the brush plate 12 and the clutch module 10 is provided and also can be ensured that the brush disc 12 assumes a predetermined, in particular also play-free position in the axial direction.

In order to ensure that the brush disk 12 remains in the fastening position, locking means interacting with one another are provided on the coupling module 10 or on the brush disk 12. On the coupling module 10 while locking means in the form of downwardly projecting in the axial direction and in particular in the axial direction resilient yielding lugs 41, which can be seen in particular in Figures 6 and 7, provided. The locking lugs 41 sit on a resilient portion 41a in the axial direction, which is limited to elastic compliance on the radially inner and radially outer side of slot-like material breakthroughs 41b. The locking lugs 41 cooperate with locking means provided on the disk 12 in the form of latching

recesses

43a, 43b, which can be seen in particular in FIGS. 2 and 3. In the insertion position, the latching lugs 41 enter the latching recesses 43a; by rotation in the mounting position, the locking lugs 41 slide over in the radial direction extending locking webs 43c in the locking recesses 43b. The twisting force M1 for releasing the locking of the clutch module 10 and the disk 12 is greater than the twisting force M2 for releasing the clutch module 10 from the engine clutch; it therefore applies: M1> M2. This ensures that when removing the cleaning disc from the machine, the coupling module remains on the disc.

The embodiment according to FIGS. 13 and 14 differs from the embodiment shown in FIGS. 1 to 12 in that the brush disk-side guide sections are not formed as wedges, but rather as grooves 40 and that the coupling module-side counter sections are not formed as wedge recesses but as webs 42 , In FIGS. 13 and 14, components corresponding to FIGS. 1 to 12 are provided with corresponding reference symbols.

The coupling module 44 shown in FIG. 13 has, at the rear grip surfaces 34 of the holding sections 14, the webs 42 which lie in plan view on a line lying about the axis of rotation of the coupling module 44. The webs 42 as such extend in the axial direction away from the rear grip surfaces 34. The webs 42 are slightly conical in cross section.

From FIG. 14, which shows the brush disk 46, it becomes clear that the coupling sections 18 provide in their rear grip surfaces 36 web recesses 40, which are designed to be complementary to the webs 42. When the coupling module 44 or the brush disk 46 is rotated out of the insertion position into the fastening position, the webs 42 come into operative contact with the web recesses 40.

Also in the embodiment shown in FIGS. 13 and 14, insertion bevels 26 are provided on the coupling sections 18. At the coupling module 44 associated Anlageschrägen 32 are provided. In the attachment position, the insertion bevels 26 act against the abutment slopes 32.

In the embodiments shown in FIGS. 15 to 23, the brush-side guide sections and the coupling module-side opposing sections are designed as inclined chamfers 62, which are described in more detail below. In these embodiments, components already described above are provided with corresponding reference numerals.

FIGS. 15a and 15b show two

different coupling modules

48 and 50. The coupling module 48 is integrally formed and is in particular made of plastic. On its upper side, a machine coupling 11 is provided for connection to a machine interface. In the radially outer, lower region of the disc clutch 13 is provided with radially projecting holding portions 14.

The coupling module 50 according to FIG. 15 b has a substantially two-part design and has a driving ring 54 as a machine coupling 11 and a disk ring 56 fastened by means of screws 56 to the driving ring 54 as a disk clutch 13. The driving ring 54 is in particular made of metal; the disc ring 56 in particular made of plastic. In the radially outer, lower portion of the disc ring 56 projecting radially outwardly holding portions 14 are provided which correspond to the holding portions 14 of the module 48 shown in Figure 15a.

The following does not deal in detail with the geometry and mode of operation of the different machine clutches 11; These are specified by the machine manufacturer.

FIG. 15 c shows the disc ring 56 of the coupling module 50 with associated brush disc 52. The comments below on FIGS. 15 c to 23 apply correspondingly to the disc clutch 13 of the module 48 shown in FIG. 15 a, since the associated holding sections are the holding sections of the disc ring 56 of the module 50 correspond.

On disc ring 56 projecting radially outward holding portions 14 are arranged. In the receptacle 16 of the brush disc 52 radially inwardly projecting coupling portions 18 are provided. When guiding the brush disk 52 with the disk ring 56, these coupling portions 18 are brought into insertion recesses 20 located between the holding portions 14. Subsequently, as already explained with reference to FIG. 1, the brush disk 52 is rotated relative to the disk ring 56, so that the coupling sections engage behind the holding sections at least in sections.

As is apparent in particular from FIG. 16, and also from FIG. 17, guide sections in the form of obliquely extending chamfers 62 are provided on the holding sections. As is clear from the enlargement according to FIG. 17, the chamfer 62 shown there includes an acute angle γ with a radial plane running perpendicular to the axis of rotation, which is indicated in FIG. 17 by the reference 64. Furthermore, the chamfer 62 with an axis perpendicular to the radial plane 64 and the axis of rotation intersecting axial plane 66 includes an obtuse angle δ. In FIG. 17, the end face 68 of the holding section 14 facing the direction of rotation lies in such an axial plane 66. Advantageously, the angle γ lies in the region of 45 ° and the angle δ in the region of 100 °.

It is clear from FIGS. 18 and 19 that the brush disk 52 has guide sections which are complementary to the chamfers 62 at their coupling sections 18, likewise in the form of chamfers 72. As is clear from the enlargement according to FIG. 19, these chamfers 72 form an acute angle γ 'with a radial plane extending perpendicular to the axis of rotation and an obtuse angle δ' with an axial plane intersecting perpendicular to the radial plane and the axis of rotation. In FIG. 19, the section of the coupling section 74 adjoining the chamfer 72 is located in such a radial plane. Furthermore, the section 76 adjoining the coupling section 18 lies in such an axial plane. The angle γ 'is preferably in the range of 45 °. The angle δ 'is preferably in the range of 100 °.

Characterized in that the

chamfers

62 and 72 are arranged perpendicular to the intersecting radial planes nor perpendicular to the axial planes intersecting them, and in that the

chamfers

62 and 72 are arranged in the attachment position in operative contact substantially parallel to each other adjacent, can when rotating the brush disc in the mounting position for a centering in the radial direction and on the other hand a playless abutment in the axial direction can be achieved.

In Figure 20, the insertion position is shown. It is clear from the partial section according to FIG. 21 that the holding section 14 is arranged between two brush-disk-side coupling sections 18. In Figure 22, the brush disk 52 is in the mounting position. From Figure 23 it is clear that the

chamfers

62 and 72 are in this position parallel to each other extending, that are in operative contact with each other.

As is clear from FIGS. 15a, 15b, 15c and 16, detent means in the form of locking lugs 41 projecting radially outwards and resiliently yielding in the radial direction are provided on the

coupling module

48, 50 or on the disk ring 56. The locking lugs 41 are seated in the radial direction yielding thin-walled portions 41a, which are limited to the elastic compliance on the radially inner side of a Materialausssparung 41b (see FIG. 16). The latching lugs 41 cooperate with locking means provided on the disk 12 in the form of latching

recesses

43a, 43b, which can be seen in particular in FIGS. 15c and 18. In the insertion position, the latching lugs 41 enter the latching recesses 43a; by rotation in the mounting position, the locking lugs 41 slide over in the axial direction extending locking webs 43c in the locking recesses 43b. The twisting force M1 for releasing the latching of the

clutch module

48, 50 or disc ring 56 and disc 12 is greater than the twisting force M2 for releasing the clutch module 50 from the engine clutch; it therefore applies: M1> M2. This ensures that when removing the cleaning disc from the machine, the coupling module remains on the disc.

The

coupling modules

10, 44, 48 and / or 50 shown in the figures are coupling modules detachably arranged on the machine. The coupling modules are arranged by means of releasable attachment types, in particular by rotation, on the machine, or at the interface.

The invention is not limited to the guide sections shown in the embodiments and associated counter sections in the form of wedges and associated wedge recesses or webs and associated web recesses or chamfers each other accordingly. Other sections that cause a corresponding function are also detected according to the invention.

In addition, it does not necessarily have to be provided that the mating sections are designed to be complementary to the guide sections. It is crucial that the guide sections come into operative contact with the counterpart sections.

Claims

Coupling module (10, 44, 48, 50) for arrangement between a drive of a floor cleaning machine and a cleaning disc (12, 46, 52), in particular a brush disc or a pad drive plate, wherein the coupling module (10, 44, 48, 50) a having machine coupling (11) corresponding to the machine, in particular releasable by twisting and / or pressing and latching, and a disk clutch (13) corresponding to the disk and releasable by rotation,

wherein the disc clutch (13) holding portions (14) and between the holding portions lying Einführaussparungen (20) so that in an insertion position disc-side coupling portions (18) axially into the Einführaussparungen (20) insertable and by turning with the holding portions (14) in the rear grip are bringable, and

wherein latching means (41, 43) are provided for releasably latching the coupling module (10, 44, 48, 50) upon reaching a fastening position such that the twisting force (M1) for releasing the latching of the coupling module (10, 44, 48, 50) and pulley (12, 52) is greater than the force for releasing the clutch module (10) from the engine clutch.
Coupling module (10, 44, 48, 50) according to claim 1, characterized in that the machine coupling (11) by a driver ring (54) and the disc clutch (13) by a on the driver ring (54) arranged disc ring (56) is formed ,
Coupling module (10, 44, 48, 50) according to claim 1 or 2, characterized in that the latching means (41, 43) on the coupling module (10, 44, 48, 50) and on the cleaning disc (12, 52) as in axially or radially resilient latching lugs (41) and on the cleaning disc (12, 52) or on the coupling module (10, 44, 48, 50) as cooperating latching recesses (43) are formed.
Coupling module (10, 44, 48, 50) according to claim 1, 2 or 3, characterized in that at least one holding portion (14) in the fastening position in the rear handle counter portion (28, 42, 62), which during rotation of the cleaning disc (12, 46, 52) comes into operative contact with a joining section (22, 40, 72) provided on the coupling section (18) such that a play-free alignment of the coupling module (10, 44, 48, 50) with respect to the cleaning disk (12, 46 , 52).
Coupling module (12) according to any one of the preceding claims, characterized in that the counter portion (28, 42, 62) on at least one along the direction of rotation (24) extending contact portion of the at least one holding portion (18) is provided.
Coupling module (10, 44, 48, 50) according to any one of the preceding claims, characterized in that the holding portion (14) has two along the twisting direction (24) extending portions at which substantially mirror symmetry to each other formed opposite sections (28, 42, 62 ) are provided.
Coupling module (10, 44, 48, 50) according to any one of the preceding claims, characterized in that the counter portion as a wedge or as a wedge recess (28) is formed, wherein the wedge or wedge recess two wedge angle (α) enclosing wedge surfaces provide.
Coupling module (10) according to claim 7, characterized in that the wedge or wedge recess (28) has an insertion bevel (26) which forms an acute angle (β) with the coupling module plane (27) or a plane perpendicular thereto.
Coupling module (48, 50) according to any one of claims 1 to 6, characterized in that the counter portion as a chamfer (62) is formed, wherein the chamfer (62) on the one hand encloses an acute angle γ with a plane perpendicular to the axis of rotation of the coupling module radial plane and on the other hand includes an obtuse angle δ with a plane perpendicular to the radial plane and through the axis of rotation axial plane.
Coupling module (48, 50) according to claim 9, characterized in that the angle γ in the range of 35 ° to 55 ° and preferably in the range of 40 ° to 50 ° and / or that the angle δ in the range of 95 ° to 150 ° and preferably in the range of 100 ° to 110 °.
Coupling module (44) according to one of claims 1 to 6, characterized in that the counter portion is formed as a web (28) or as a web recess.
Coupling module (44) according to one of claims 1 to 11, characterized in that the latching means (41, 43) are arranged on the holding portions (14).
Cleaning disc (12, 46, 52), in particular brush disc or pad drive plate, for a floor cleaning machine, for placement on a coupling module (10, 44, 48, 50) according to one of the preceding claims, characterized in that the cleaning disc (12, 46 , 52) has coupling sections (18) which are engaged behind by the holding sections (14) in the fastening layer, wherein at least one coupling section (14) has a guide section (22, 40, 72) which, when rotated with the counterpart section (28, 42 , 62) comes into operative contact such that a play-free alignment of the disc (12, 46, 52) with respect to the coupling module (10, 44, 48, 50) takes place.
Cleaning disc (12, 46, 52) according to claim 12, characterized in that latching means (41, 43) for tool-releasable latching of the disc (12, 46, 52) on the coupling module (10, 44, 48, 50) are provided upon reaching the mounting position.
Cleaning disc (12, 46, 52) according to claim 12 or 13, characterized in that the coupling portions (18) and the associated locking means (41, 43) are designed such that the twisting force (M1) for releasing the locking of the coupling module and disc greater than the twisting force (M2) for releasing the machine coupling.
Cleaning disc (12, 46, 52) according to claim 14, characterized in that the guide portion is formed complementary to the counter portion.
A coupling system comprising a coupling module according to any one of claims 1 to 11 and a cleaning disc according to any one of claims 12 to 15.