BE1030091B1 - vacuum robot - Google Patents

Abstract

The invention relates to a robotic vacuum cleaner with at least one cleaning roller (4) extending transversely to a working direction (3) and having an elongate roller body (5), the cleaning roller (4) being removable from the robotic vacuum cleaner (1) for replacement and/or cleaning and can be used again, the cleaning roller (4) used in the robotic vacuum cleaner (1) being rotatably driven on a first bearing side (6) via a drive pin (7) of the cleaning roller (4), the cleaning roller (4) used in the robotic vacuum cleaner (1) on a second bearing side (8) via a loose bearing (9), the loose bearing (9) of the cleaning roller (4) having a spring-loaded bearing bush (10), the bearing bush (10) of the cleaning roller (4) used being in a bearing mount (11) of the robotic vacuum cleaner (1), with a spring (12) displacing the bearing bush (10) axially by means of spring force (F) on the roller body (5) of the cleaning roller (4) against the bearing mount (11), with the spring force (F) of the spring (12) axially displaces the drive pin (7) of the cleaning roller (4) used against a drive pin receptacle (13) of the vacuum robot (1).

Description

Description

vacuum robot

The invention relates to a robotic vacuum cleaner for autonomous cleaning of floor surfaces, the robotic vacuum cleaner having at least one

Cleaning roller having an elongated roller body, wherein the cleaning roller for

Change and / or for cleaning from the vacuum robot can be removed and used again, the cleaning roller used in the vacuum robot on a first bearing side via a

Drive pin of the cleaning roller is rotatably driven, with the used

Cleaning roller is mounted in the vacuum robot on a second bearing side via a floating bearing.

Vacuum robots are used in private households and in industry for the autonomous cleaning of

Surfaces such as textile floor coverings and smooth floors are used.

Robot vacuums of the type mentioned at the outset are known from the prior art. A disadvantage of the previously known robotic vacuum cleaners is that the cleaning roller is not inserted in a user-friendly manner and the cleaning roller is not mounted adequately

Has damping, so that the operation of the vacuum robot with a significant

Noise is accompanied by the rotatable driven cleaning rollers.

The invention therefore faces the problem of specifying an improved vacuum robot.

In particular, changing and/or cleaning the cleaning roller should be simplified and the acoustics of the vacuum robot during operation should be improved in a simple manner, so that the noise generated by the rotating cleaning roller is reduced.

According to the invention, this problem is solved by a vacuum robot with the features of

Claim 1 solved.

The fact that the floating bearing of the cleaning roller has a spring-loaded bearing bush, the bearing bush of the cleaning roller used in a bearing seat of the

Vacuum robot is added, with a spring axially displaces the bearing bush by means of spring force on the roller body of the cleaning roller against the bearing mount, wherein the

Spring force of the spring the drive pin of the cleaning roller used axially against a

Drive pin recording of the vacuum robot shifts, the assembly of the cleaning roller in the vacuum robot can be simplified and also a sufficient in a simple manner

Dampening of the storage can be realized, which significantly reduces noise for the

operation of the vacuum robot is possible. With the bearing bush of the floating bearing damping of the storage can also be done without changing the drive pin and the

Drive pin recording can be achieved. The spring-loaded bearing bushing on the floating bearing still ensures damping of the bearing on both bearing sides by the spring force of the

Spring for a cushioning support of the bearing bush in the bearing seat provides, wherein the

Spring force of the spring when supporting the bearing bush in the bearing seat at the same time for a damping support of the drive pin in the drive pin seat of the

vacuum robot ensures. Thus, the cleaning roller with the bearing bush and the drive pin is clamped by the spring force by means of a preferably single spring between the bearing mount and the drive pin.

The floor surface can be covered by a textile floor covering such as a rug or carpeting or by a hard floor such as e.g. B. a wooden parquet, laminate or PVC flooring can be formed.

The vacuum robot has a fan for generating a negative pressure through which the

Robot vacuum picks up dust and dirt from the floor surface. So that the cleaning and

Care of the floor covering is carried out as effectively as possible by the vacuum robot, a suction mouth of the vacuum robot is elongated and runs essentially transversely to the

processing direction. Elongated means in this context that the preferably substantially rectangular suction port has a greater length transverse to

Has processing direction, than width in processing direction. He can

Have dust receiving chamber in which the recorded dust can be collected, for example, in a dust bag or dust container.

The bearing bush on the loose bearing side is preferably mounted elastically via a compression spring, which presses axially on the roller body. This promotes low vibration during operation

Cleaning roller due to the firm, pre-tensioned and cushioned seat of the cleaning roller in the vacuum robot. The bearing bush can be made of elastomer, such as EPDM, NBR, or TPU

Silicone, but also plastic with good damping properties, such as POM or

polyketone. In a particularly preferred embodiment, there is

Bearing bush made from a combination of a hard component and a soft component.

Advantageous refinements and developments of the invention result from the dependent claims. It should be pointed out that the features listed individually in the claims can also be combined with one another in any technologically meaningful manner and thus show further refinements of the invention.

According to an advantageous embodiment of the invention it is provided that the

Drive pin has a plurality of claws, these form first, axial sliding surfaces and first, tangential contact surfaces, the drive pin receiving second, axial

Forms sliding surfaces and second, tangential contact surfaces, with the axial sliding surfaces being designed to slide past one another when the cleaning roller is inserted into the robotic vacuum cleaner and to position the tangential contact surfaces against one another, with the positioned contact surfaces being set up to press on the cleaning roller used

Driving force for rotating the cleaning roller of the drive pin recording on the

to transfer drive pin. The drive pin and the drive pin receptacle, which is mechanically connected to a drive motor, form with the sliding surfaces and the

Contact surfaces prefer corresponding claws. The claws are preferably formed by circular sector sections (pieces of cake) bisected diagonally in the axial direction.

The sliding surfaces are independent of the onset of the cleaning roller

Angular position of the roller body to each other and slide on each other in a contact position in which the contact surfaces contact each other. Preferably, the edges of the self-locating claws between the sliding surfaces and the contact surfaces are rounded, so that the drive pin and the drive pin receptacle get caught when the

Cleaning roller can be prevented. The sliding surfaces of the drive pin and

When inserting the cleaning roller into the robot vacuum, the drive pin mounts are aligned with one another by rotating the drive pin mount around the drive axis.

Then, when the cleaning roller is inserted, the sliding surfaces slide against one another until the tangential contact surfaces of the drive pin and the drive pin receptacle touch and create a non-positive connection.

An advantageous embodiment of the invention is that the bearing bush has a centering pin which is designed to, when inserting the cleaning roller in a pin guide

Bearing mount to be guided to a pin receiving hole of the bearing mount, in which the centering pin engages. The centering pin is an easy way to get a precise one

Alignment of the cleaning roller when inserting it into the vacuum robot is possible, since the

centering pin is guided in the pin guide. The snapping of the centering pin by means of the spring force of the spring enables an optimal alignment of the bearing bush in the

Storage of the vacuum robot during cleaning operation. With the snapping of

Centering pins also provide haptic feedback that the cleaning roller has been inserted correctly. The main part of the latching effect of the bearing bush takes place via its conical contact surfaces. The pin guide is preferably funnel-shaped

Groove formed in the housing of the vacuum robot. The arrangement of the centering pin in the

Pin receiving hole prevents movement of the bushing relative to

Drive pin mount in vertical direction. This locks the centering pin

Bearing bush in an operating position in the vacuum robot.

A preferred embodiment of the invention provides that the bearing bush has at least one conical contact surface for support in the bearing mount. the conical

Contact surface serves hair or threads when cleaning the floor surface on the

Lead the contact surface to the outside as far as possible. For this purpose, the conical contact surface to

Support is preferably designed to taper towards the bearing mount.

The development of the invention is particularly advantageous in that the bearing bush has a collar which adjoins the largest radius of the contact surface and protrudes at least radially from the contact surface. The collar is used for the form-fitting connection

Bearing bush with the roller body. The collar advantageously prevents the bearing bush from loosening on its own, for example during maintenance of the cleaning roller. The collar forms an increase in diameter so that hair is prevented from migrating into the area between the bearing bush and the roller body. In another

Embodiment, the bearing bush on a second collar, which is on the

Bearing bush extends inwards in the direction of the axis. In addition, it is preferable to arrange a collar on the bearing shaft, which extends radially outwards and is used for the form-fitting connection between the bearing bush and the bearing shaft.

Another advantageous embodiment of the invention is that the bearing bush is rotatably mounted on a bearing shaft via a ball or slide bearing, the bearing shaft being guided in an axially displaceable manner relative to the roller body by means of the spring. The ball or plain bearing, which is protected in the bearing bush, allows the bearing bush to rotate relative to the roller body, so that the bearing bush is firmly in the roller for rotating the cleaning roller

Bearing mount can remain positioned. The bearing shaft, which is guided axially in the roller body, allows the spring deflection of the spring-loaded bearing bush. The bearing shaft can be a component made of metal, preferably steel, so that stable storage is made possible. The ball bearing can be mounted with play on the bearing shaft and preferably removed together from the bearing shaft for cleaning against a small resistance of the form fit of the bearing shaft with the bearing bush.

An advantageous embodiment of the invention provides that the cylindrical roller body has a base diameter, with the roller body adjoining the cutting circle

Has projections which protrude at least radially from the outer surface of the roller body. These projections are intended to prevent hair and threads that wind up around the cleaning roller when cleaning the floor surface from migrating beyond the cutting circles of the cylindrical roller body into the bearing sides. The opposite of

Lateral surface of the roller body radially protruding projections have a larger

diameter than the base diameter of the roller body, making it difficult for hair and threads to migrate across this increased diameter. This allows the bearing sides to be effectively protected against clogging with tufts of hair and threads.

According to an advantageous embodiment of the invention it is provided that the

Cleaning roller has a plurality of rubber lamellas which protrude radially from the roller body and form outer lamella edges 5, the elongate rubber lamellas being attached to the axial

Lamella ends have subsequent projections, which protrude at least radially opposite the outer edges of the lamellae. These cantilevers can be used to prevent

Hair and threads that wind around the cleaning roller when cleaning the floor surface migrate beyond the slat ends into the bearing sides. The versus the

Lamella outer edges radially projecting projections prevent migration of hair and threads over the larger radial distance to the roller body

ends of the slats. This allows the bearing sides before clogging with hair and

Effectively protect thread tufts.

A preferred embodiment of the invention provides that the projections in the running channels of the

Intervene vacuum robot, wherein the troughs form undercuts. The undercuts prevent hair and threads from getting caught around the floor surface when cleaning

Wind cleaning roller, move past the overhangs into the bearing sides. For this purpose, the running channels preferably enclose the projections at an angle of at least 180°. The rotationally symmetrical raceways nevertheless offer sufficient play so that the projections in the raceways can rotate freely when the cleaning roller rotates.

Further features, details and advantages of the invention result from the following description and from the drawings. Examples of the

Invention are shown purely schematically in the following drawings and are described in more detail below. Corresponding objects or elements are provided with the same reference symbols in all figures. Show it:

Figure 1 vacuum robot with two cleaning rollers,

Figure 3 cleaning roller,

Figure 4 sectional view through bearing bush,

Figure 5 first embodiment of the bearing bush,

Figure 6 second embodiment of the bearing bush,

Figure 7 third embodiment of the bearing bush,

figure 8 pin guide,

Figure 9 engaged centering pin,

Figure 10 open floating bearing,

Figure 11 closed floating bearing,

Figure 12 sectional view through cleaning roller,

Figure 13 Sectional view through floating bearing,

Figure 14 further version of floating bearing,

Figure 15 further embodiment of bearing bush,

Figure 16 Sectional view through floating bearing,

Figure 17 dimensions of cantilevers,

Figure 18 dimensions of bearing bush,

Figure 19 drive pin,

Figure 20 drive pin receptacle,

Figure 21 Sectional view through the first bearing side,

Figure 22 sectional view through cantilever, and

FIG. 23 another sectional view through the overhang.

FIG. 1 shows a robotic vacuum cleaner 1 from the underside 47. In this illustration it can be seen that the robotic vacuum cleaner 1 has two transversely to the processing direction 3,

Cleaning rollers 4 has. This cleaning rollers 4 have an elongated

Roller body 5. For changing and/or cleaning, the cleaning rollers 4 can be removed from the vacuum robot 1 and also reinserted. The cleaning roller 4 used in the vacuum robot 1 is on a first bearing side 6 (FIG. 20) via a

Drive pin 7 (Fig. 20) of the cleaning roller 4 rotatably driven on the vacuum robot 1.

First, however, the axially opposite second bearing side 8 will be described in more detail, on which the cleaning roller 4 is mounted via a floating bearing 9 on the vacuum robot 1 .

FIG. 2 shows a cleaning roller 4 according to FIG. 2, partially in an individual view.

Here the spring-loaded bearing bushing 10 of the floating bearing 9 (Fig. 2) can be seen. The

Bearing bush 10 is in the used cleaning roller 4, as can be seen in Figure 2, in a

Bearing mount 11 of the vacuum robot 1 was added.

FIG. 3 shows a sectional view through the bearing bush 10 according to FIG

View shows that the bearing bushing 10 can be displaced on the roller body 5 by means of a spring 12 . The spring 12 pushes the bearing bush 10 in the inserted state

Cleaning roller 4 against the bearing mount 11 (Fig. 1) of the floating bearing 9 (Fig. 1). The

In this state, however, the spring force F of the spring 12 also presses the drive pin 7 (Fig. 20) of the cleaning roller 4 used axially against a drive pin receptacle 13 (Fig. 20) of the

Vacuum robot 1. As a result, the assembly of the cleaning roller 4 can be significantly simplified in the vacuum robot and also a sufficient damping of the in a simple manner

Storage can be realized, which significantly reduces noise for the operation of the

vacuum robot allows. The sectional view also shows that the bearing bushing 10 is rotatably mounted on a bearing shaft 25 via a ball or plain bearing 24 . The ball or

Plain bearing 24 is protected in the bearing bush 10 so that hair and threads that wind around the cleaning roller 4 cannot reach the ball or plain bearing 24 .

The bearing shaft 25 can be axially displaced by means of the spring 12 and is for this purpose in the

Roller body 5 slidably guided. The bearing shaft 25 advantageously has a disc-shaped step, which counteracts the migration of threads and hair. The recorded in the bearing bush 10 ball or plain bearing 24 allows the rotation of

Bearing bush 10 relative to the roller body 5, so that the bearing bush 10 at the

Rotation of the roller body 5 fixed in the bearing seat 11 (Fig. 1) can remain positioned.

The bearing bush 10 is supported in the bearing seat 11 (FIG. 1) via conical contact surfaces 22. These conical contact surfaces 22 serve to guide hair or threads on the contact surface 22 to the outside as far as possible when cleaning the floor surface. For this purpose, the conical contact surface 22 runs to a point to support the bearing mount 11 (FIG. 1). To the

To protect the gap between the roller body 5 and the bearing bush 10 , the bearing bush 10 is inserted into an axial bore 56 and the axial roller body 5 is guided further via the bearing bush 10 . A collar 23 which protrudes radially from the contact surface 22 also adjoins the largest radius of the contact surface 22 . So the collar 23 forms a

Diameter increase, so that a migration of hair in the area between

Bearing bush 10 and roller body 5 is prevented. The ball or sliding bearing 24 can be removed from the bearing shaft 25 together with the bearing bushing 10 . For this purpose, the bearing bushing 10 has a shoulder 49 on the contact surfaces 22, which can be gripped behind with a fingernail to remove the bearing bushing 10 together with the ball or sliding bearing 24 from the bearing shaft 25. The axial freedom of movement of the bearing shaft 25 in the

Roller body 5 is through a slot 50 in the bearing shaft 25 and a plunging therein

Stop element 51 limited, which is attached to the roller body 5. The

Stop element 51 can be a metric screw, a self-tapping screw or a simple bolt with locking geometry to a roller bore.

Figure 4 shows a first embodiment of the contact surfaces 22 of the bearing bush 10. In this

In this case, the contact surfaces 22 are smooth and rotationally symmetrical.

A second embodiment of the contact surfaces 22 of the bearing bush 10 can be seen in FIG.

Here elevations 52 are provided in the form of knobs on the contact surfaces 22, so that a

Form fit with the correspondingly designed bearing mount 11 (Fig. 1) can be produced. The elevations 52 prevent the bearing bushing 10 from slipping through hairs between the bearing bushing 10 and the bearing mount 11 (FIG. 2) and damaging the bearing mount 11 .

FIG. 6 reveals a third embodiment of the contact surfaces 22 of the bearing bush 10. In this embodiment, the elevations 52 are designed as webs which engage in corresponding grooves of the bearing mount 11 (FIG. 1) and produce a form fit.

The surveys 52 ensure that the bushing 10 with hair between the

Bearing bush 10 and the bearing mount 11 (Fig. 1) does not slip and the bearing mount 11 is damaged. In addition, the position of the bearing bush defined by the elevation has an advantageous effect on the vibration behavior of the cleaning roller.

The bearing mount 11 of the loose bearing 9 is shown in FIG. Also, one

Cleaning roller 4 partially shown before insertion into the vacuum robot 1. Here is one too

Centering pin 19 can be seen on the bearing bush 10. The block arrows indicate that the centering pin 19 is designed to be guided in a pin guide 20 of the bearing mount 11 to a pin receiving hole 21 of the bearing mount 11 when the cleaning roller 4 is inserted.

FIG. 8 shows the centering pin 19 engaged in the pin receiving hole 21. About the

Centering pin 19 can be used to precisely align the cleaning roller 4 when it is inserted into the vacuum robot 1, since the centering pin 19 is guided over the pin guide.

The locking of the centering pin 19 is achieved via the spring force of the spring 12 and enables an optimal alignment of the bearing bush 10 in the bearing mount 11 of the

robot vacuum cleaner 1 during cleaning operation. In addition, snapping the

Centering pins 19 a haptic feedback that the cleaning roller 4 was used correctly.

FIG. 9 shows a view of the open loose bearing 9 with the bearing mount 11 . A separate capsule part 53 can be used in the housing of the vacuum robot 1

Close the bearing mount 11 radially.

For this purpose, the capsule part 53 is placed on the floating bearing 9 on the bearing mount 11, as can be seen in FIG. The capsule part 53 can be pivoted on the robotic vacuum cleaner 1 so that it can be pivoted open to remove the cleaning roller 4 (FIG. 2). To the

Securing the bearing bush 10 in the bearing mount 11, the capsule part 53 can then simply be pivoted closed again after the cleaning roller 4 has been inserted. The capsule part 53 can then be latched onto the vacuum robot 1 .

In Figure 11, an embodiment is shown in which radially from the roller body 5 of the

Cleaning roller 1 protruding rubber slats 30 form an undercut 34 with the bearing bush 10. As a result, an unintentional loosening of the bearing bush 10 together with ball or

Plain bearings 24 are avoided.

FIG. 12 shows an embodiment of the floating bearing 9 in which the rubber lamellae 30 protruding radially from the roller body 5 have projections 32 at the lamellar ends 31 . The elongated rubber lamellae 30 form along the cleaning roller 1, respectively

Outer edges of the slats 29. Those adjoining the axial ends 31 of the slats

Projections 32 protrude radially opposite the outer edges 29 of the lamellae. This

Projections 32 on the rubber slats 30 prevent hair and threads from getting caught in the

Wind the cleaning of the floor surface around the cleaning roller 4 and move beyond the lamellar ends 31 into the bearing sides 6, 8. The bearing sides 6, 8 are thus effectively protected against clogging with tufts of hair and threads. The projections 32 engage in runners 33, the runners 33 forming undercuts 34 for this purpose. About the undercuts 34 is achieved that hair and threads that are in the cleaning of the floor surface to the

Wind the cleaning roller 4, do not move beyond the projections 32 into the bearing sides 6, 8. For this purpose, the running grooves 33 preferably enclose the projections 32, as shown, with an angle of at least 180°. The rotationally symmetrical running grooves 33 are in

Embodiment formed by the housing of the vacuum robot 1 and the capsule part 53, which secures the cleaning roller 4 in the vacuum robot 1. The maze-like structure

Projection 32 and channel 33 effectively prevent threads and hair from penetrating into the bearing of the cleaning roller 4.

A further embodiment of the floating bearing 9 is shown in FIG. Unlike that

Execution according to Figures 7, 9 and 10, the bearing mount 11 has a star

Structure 54 at the seat for the bushing 10 (Fig. 14).

As can be seen in Figure 14, the corresponding bearing bush 10 also has a

Star structure 54 as elevations on the conical contact surface 22. The cleaning roller 4 shown in detail in FIG. 14 finds a particularly slight positive fit in the bearing mount 11 according to FIG.

Structures 54. This is a defined seat of the bearing bush 10 in the radial direction in the

Bearing mount 11 possible. As a result, the bearing bushing 10 does not slip through

Friction in the loose bearing 9. The star structure 54 is preferably formed by rotatory cylindrical deduction bodies (female) of the conical contact surface 22 of the bearing bush 10 or raised structures (male) on the bearing mount 11. The subtraction solids run in

Direction of the axis of rotation of the cleaning roller 4 from.

FIG. 15 shows a sectional view through the loose bearing 9. In the embodiment shown here, additional projections 27 are provided on the cylindrical roller body 5. Of the

These stand for the basic diameter d_mb1 of the roller body 5, which is shown in FIG

Projections 27 radially from the lateral surface 28 of the roller body 5 from. until

Diameter d_mb4, which is equal to or larger than the diameter d_c (Fig. 16) of

Undercut 34 of the running channel 33. The projection 27 adjoining the cutting circle 26 protrudes with the diameter d_mb3 (Fig. 16) under the undercut 34 into the running channel 33, the diameter d_mb3 (Fig. 16) being smaller than the diameter d_c (Fig 16) des

Undercut 34, but larger than the diameter d_mb2 (Fig. 16) of the projection 27 in front of the undercut 34. As a result, a migration of hair and threads in the operation of

Vacuum robot 1 difficult along the path indicated by arrows. Because the

Potential increase due to the increasing diameter stops the migration of the hair and

threads effective. In the embodiment shown here, the bearing bush 10 is advantageously composed of two components. A firmer component forms the centering pin 19 , while a softer component forms the collar 23 adjoining the contact surface 22 . In addition, an elastic retaining collar 57 (Fig. 16) is provided which releases the

Bearing bushing 10 should prevent from the bearing shaft 25.

As can be seen in FIG. 17, the diameter d_b1 of the adjoining collar 23 is greater than the diameters d_b2 and d_b3 of the conical contact surface 22. This also effectively prevents hair or threads from overcoming the adjoining collar 23 and getting into the area of the spherical or Plain bearing 24 penetrate.

FIG. 18 shows the drive pin 7 in a perspective view. It can be seen here that the drive pin 7 has a plurality of claws 14 , these forming first, axial sliding surfaces 15 and first, tangential contact surfaces 16 . In Figure 19, however, it can be seen that the drive pin receptacle 13 second, axial sliding surfaces 17 and second, tangential

Contact surfaces 18 forms. The axial sliding surfaces 15, 17 of the drive pin receptacle 13 and

Drive pins 7 are designed to when inserting the cleaning roller 4 in the

Suction robot 1 to slide past each other until the tangential contact surfaces 16, 18 of

Drive pin receptacle 13 and drive pin 7 touch. The touching ones

Contact surfaces 16, 18 are set up on the cleaning roller 4 used a

Driving force for rotation of the cleaning roller 4 of the drive pin receptacle 13 on the

Drive pin 7 to transfer.

The drive pin 7 and the drive pin receptacle 13 form mutually corresponding claws 14 with the sliding surfaces 15, 17 and the engagement surfaces 16, 18. The claws 14 are formed by circular sector sections (pie pieces) bisected diagonally in the axial direction.

So find the sliding surfaces 15, 17 when inserting the cleaning roller 4 regardless of the

Angular position of the roller body 5 to each other and slide on each other in a contact position in which the contact surfaces 16, 18 contact each other. The edges of the self-locating claws 14 between the sliding surfaces 15, 17 and the engagement surfaces 16, 18 are rounded, so that the drive pin 7 and the drive pin receptacle 13 are prevented from getting caught when the cleaning roller 4 is inserted.

A sectional view through the first bearing side 6 is shown in FIG. Here it can be seen how the drive pin 7 and the drive pin receptacle 13 after the onset of

cleaning roller 4 into the vacuum robot 1. Projections 32 are also provided on this bearing side in this embodiment on the rubber lamellae 30 protruding radially from the roller body 5 or on the ends 31 of the lamellae. The projections 32 adjoining the axial ends 31 of the slats are also radially opposite to the ones here

Outer edges 29 of the slats. This can prevent hair and threads from wrapping around the cleaning roller 4 and over the cleaning of the floor surface

Lamella ends 31 hike out to the bearing side. Here, too, the projections 32 engage in runners 33, with the runners 33 forming undercuts 34 for this purpose. This ensures that hair and threads that get caught when cleaning the floor surface around the

Wind the cleaning roller 4, do not move beyond the projections 32 into the bearing side 6. The undercuts 34 are preferably formed from an elastic material, which

Insertion of the cleaning roller 4 in the vacuum robot 1 facilitates.

FIG. 21 once again offers a detailed view of the undercut 34 of the running channel 33, in which the projection 32 is accommodated. Also at the storage area is a

Overlap 58 provided, which rejects penetrating hair.

This overlap 58 can be seen better in the detailed view according to FIG. The labyrinthine structure of projection 32, channel 33 and overlap 58 is particularly effective in preventing the penetration of threads and hair into the storage

cleaning roller 4.

Of course, the invention is not limited to the illustrated embodiments. Further

Modifications are possible without departing from the basic idea.

List of reference symbols: 1 vacuum robot 3 processing direction 4 cleaning roller 5 roller body 6 first bearing side 7 drive pin 8 second bearing side 9 loose bearing 10 bearing bush 11 bearing mount 12 spring 13 drive pin mount 14 claw 15 axial sliding surfaces (drive pin) 16 tangential contact surfaces (drive pin) 17 axial sliding surfaces (drive pin mount) 18 tangential Contact surfaces (drive journal receptacle) 19 centering pin 20 pin guide 21 pin receiving hole 22 contact surface 23 collar 24 ball or slide bearing 25 bearing shaft 26 cutting circle 27 overhang (roller body) 28 outer surface 29 lamella outer edges 30 rubber lamella 31 lamella ends 32 overhang (rubber lamella) 33 running grooves 34 undercuts 35 connecting piece 36 intake manifold

37 37a vacuum cleaner housing 38 handle 39 suction hose 40 connection cable 41 suction mouth 43 dust base 44 exhaust air grille 45 impact control 47 underside 48 detour tension 49 paragraph 50 long hole 52 surveys 54 Star structure 56 Hallothing 57 healing skating 8 overlap

F spring force d_mb1 base diameter d_mb2 diameter of the overhang d_mb3 diameter under the undercut d_mb4 diameter of the overhang d_b1 diameter of the adjoining collar d_b2 diameter of the conical contact surface d_b3 diameter of the conical contact surface d_c diameter of the undercut

Claims (10)

patent claims 1. Robotic vacuum cleaner with at least one cleaning roller (4) extending transversely to a processing direction (3) and having an elongate roller body (5), the cleaning roller (4) being removable from the robotic vacuum cleaner (1) for changing and/or cleaning and being reinserted the cleaning roller (4) used in the robotic vacuum cleaner (1) is rotatably driven on a first bearing side (6) via a drive pin (7) of the cleaning roller (4), the cleaning roller (4) used in the robotic vacuum cleaner (1) being on a second bearing side (8) via a floating bearing (9), characterized in that the floating bearing (9) of the cleaning roller (4) has a spring-loaded bearing bush (10), the bearing bush (10) of the cleaning roller (4) used being in a bearing mount (11) of the robotic vacuum cleaner (1), with a spring (12) displacing the bearing bush (10) axially by means of spring force (F) on the roller body (5) of the cleaning roller (4) against the bearing mount (11), with the Spring force (F) of the spring (12) axially displaces the drive pin (7) of the cleaning roller (4) used against a drive pin receptacle (13) of the vacuum robot (1). 2. Robotic vacuum cleaner (1) according to Claim 1, characterized in that the drive pin (7) has a plurality of claws (14), these forming first, axial sliding surfaces (15) and first, tangential contact surfaces (16), the drive pin receptacle (13 ) forms second, axial sliding surfaces (17) and second, tangential contact surfaces (18), the axial sliding surfaces (15, 17) being designed to slide past one another when the cleaning roller (4) is inserted into the vacuum robot (1) and the tangential contact surfaces (16, 18) to be positioned against one another, the positioned contact surfaces (16, 18) being set up to apply a driving force to the cleaning roller (4) used to rotate the cleaning roller (4) from the drive pin receptacle (13) to the drive pin (7). transferred to. 3. Robotic vacuum cleaner (1) according to Claim 1 or 2, characterized in that the bearing bush (10) has a centering pin (19) which is set up to, when the cleaning roller (4) is inserted, in a pin guide (20) of the bearing mount (11 ) to be guided to a pin receiving hole (21) of the bearing mount (11), in which the centering pin (19) engages. 4. Robotic vacuum cleaner (1) according to one of the preceding claims, characterized in that the bearing bush (10) has at least one conical contact surface (22) for support in the bearing mount (11). 5. Robotic vacuum cleaner (1) according to claim 4, characterized in that the contact surface (22) forms at least one elevation (52) which engages in an operating position of the bearing bush (10) in a recess of the bearing mount. 6. Robotic vacuum cleaner (1) according to claim 4, characterized in that the bearing bush (10) has a collar (23) adjoining the largest radius of the contact surface (22) and protruding at least radially from the contact surface (22). 7. Robotic vacuum cleaner (1) according to one of the preceding claims, characterized in that the bearing bush (10) is rotatably mounted on a bearing shaft (25) via a ball or plain bearing (24), the bearing shaft (25) being supported by the spring ( 12) is guided in an axially displaceable manner relative to the roller body (5). 8. Robotic vacuum cleaner (1) according to one of the preceding claims, characterized in that the cylindrical roller body (5) has a base diameter (d_mb1), the roller body (5) having projections (27) adjoining the cutting circle (26) which are at least protrude radially from the lateral surface (28) of the roller body (5). 9. Robotic vacuum cleaner (1) according to one of the preceding claims, characterized in that the cleaning roller (4) has a plurality of rubber lamellas (30) which protrude radially from the roller body (5) and form outer lamella edges (29), the elongate rubber lamellas (30) being attached to the have projections (32) adjoining the axial ends (31) of the lamellae, which protrude at least radially in relation to the outer edges (29) of the lamellae. 10. Robotic vacuum cleaner (1) according to claim 8 or 9, in that the projections (27, 32) engage in runners (33) of the robotic vacuum cleaner (1), the runners (33) forming undercuts (34).