EP3795054A1 - Floor cleaning machine with a sweeping device with a container for sweepings with a fill level detection device - Google Patents

Abstract

A floor cleaning machine (1) with a machine frame (5), with a chassis (7) for moving the floor cleaning machine (1) along a direction of travel over a floor surface (3) to be cleaned, with a cleaning device (15), is shown and described the cleaning device (15) a cleaning element (17) and a dirt container (23) having a floor (55) are provided, the cleaning device (15) being adjusted between a lowered position and a raised position relative to the machine frame (5) can, wherein in the lowered position the cleaning element (17) is arranged relative to the floor surface (3) to be cleaned in such a way that it can clean it, and in the raised position the cleaning device (15) is spaced apart from the floor surface (3) to be cleaned ) is, with a feeler element (51) which has a free end which extends into the dirt container (23), the feeler element (51) in such a way is arranged that the distance of the free end (53) of the feeler element (51) from the bottom (55) of the dirt container (23) increases when the cleaning device (15) is adjusted from the raised position to the lowered position, the Probe element (51) can execute a movement relative to the machine frame (5), in which its free end (53) executes a movement in a direction facing away from the bottom (55) of the dirt container (23), and with means (61) for detecting the movement of the probe element (51) relative to the machine frame (5), the means (61) being designed to output a signal when a movement of the probe element (51) is detected.

Description

The present invention relates to a floor cleaning machine with a chassis provided on the machine frame for moving the floor cleaning machine along a direction of travel over a floor surface to be cleaned, with a cleaning device movably mounted on the machine frame, a cleaning element and a dirt container having a floor on the cleaning device, are provided, wherein the cleaning device can be adjusted relative to the machine frame between a lowered position and a raised position, wherein in the lowered position the cleaning element is arranged relative to the floor surface to be cleaned that it can clean it, and in the raised position the cleaning device is at a distance from the floor surface to be cleaned.

Such floor cleaning machines with a cleaning device, which is often designed as a sweeping device and which has a dirt container in addition to a cleaning element such as a sweeping roller, are well known from the prior art. While the cleaning device is lowered from a raised position to the lowered position, ie the working position, during the cleaning operation, the floor cleaning machine is moved over the floor surface to be cleaned, the cleaning element loosening dirt from the floor surface to be cleaned and conveying it into the dirt container .

The problem here now arises that the dirt container has to be emptied regularly, but it is not readily apparent to the user when this is necessary. In particular, it also happens that the user is not even aware that the machine has a dirt container that has to be emptied. If the dirt container is not emptied, however, no further dirt that has been removed from the floor surface by the cleaning element such as the rotary brush can be taken up in the dirt container, and the cleaning result deteriorates.

Against this background, it is desirable to create a display or some other type of signaling for the user so that he receives an indication that the dirt container is completely filled and must be emptied.

With regard to possible systems for detecting the fill level in the debris container, however, the further problem arises that the area of the debris container is exposed to dirt and moisture, so that electronic components in particular are exposed to very high loads in this area, which shorten their service life. Therefore, when using electronically operating sensors, such as optical sensors, which are arranged inside the dirt container, there is the risk that they will fail quickly and that a fill level detection system based on them will not work reliably over a long period of time.

In addition, there is the further problem that it is difficult to detect whether the dirt container is actually completely full. This is because debris can, in fact, be anything from fine-grained dust and dirt to leaves and cans. Therefore, depending on the composition, the properties of the debris such as mass, density, moisture and visual effects vary greatly. Sensors that detect only one property of these properties do not generate sufficient detection reliability. If, for example, an optical sensor were used to detect the fill level, this would signal that the container is full if only one can is in the area of the light beam crossing the container.

Based on this prior art, it is therefore the object of the present invention to provide a floor cleaning machine with a cleaning device and a debris container, in which it can be reliably detected whether the debris container is full.

According to the invention, this object is achieved by a floor cleaning machine with a machine frame, with a chassis provided on the machine frame for moving the floor cleaning machine along a direction of travel over a floor surface to be cleaned, with a cleaning device movably mounted on the machine frame, a cleaning element and a dirt container on the cleaning device , which has a floor, are provided, wherein the cleaning device can be adjusted with respect to the machine frame between a lowered position and a raised position, wherein in the lowered position the cleaning element is arranged relative to the floor surface to be cleaned in such a way that it can clean it, and wherein in the raised position cleaning device is spaced from the floor surface to be cleaned, with a Probe element which has a free end that extends into the dirt container, the probe element being arranged in such a way that the distance between the free end of the probe element and the bottom of the dirt container increases when the cleaning device is moved from the raised position to the lowered position wherein the feeler element can execute a movement relative to the machine frame, in which its free end executes a movement in a direction facing away from the bottom of the dirt container, and with means for detecting the movement of the feeler element relative to the machine frame, wherein the means are configured to output a signal when a movement of the probe element is detected.

In the floor cleaning machine according to the invention, a machine frame is accordingly provided on which a chassis is provided, which can in particular have wheels which define a plane in which the floor surface to be cleaned essentially extends. With the aid of the chassis, the floor cleaning machine can be moved over the floor surface to be cleaned.

Furthermore, in the floor cleaning machine according to the invention, a cleaning device is movably supported on the machine frame, a cleaning element and a dirt container having a floor being provided on the cleaning device. Because the cleaning device can be adjusted between the lowered and the raised position, it is possible that the machine is either moved over the floor surface to be cleaned when the cleaning device is in the lowered position, so that the cleaning device or the cleaning element is in engagement with the floor surface in order to clean it, or, when the cleaning device is in the raised position, can be moved over the floor surface during transport trips without the cleaning element coming into engagement with the floor surface. By means of the dirt container can be picked up by the cleaning element detached or collected debris from the floor surface to be cleaned during the cleaning operation, whereby the debris container must therefore be emptied regularly, sooner or later, depending on the degree of soiling of the floor surface.

In a preferred embodiment, the cleaning element is designed as at least one sweeping element which in the lowered position comes into engagement with the floor surface to be cleaned and which in the raised position is out of engagement with the floor surface to be cleaned and, in particular, is spaced apart therefrom. In particular, it can The sweeping element can be designed as a sweeping roller which is driven to rotate about an axis of rotation extending parallel to the plane of the floor surface to be cleaned. With such an arrangement, dirt can be effectively loosened from a floor surface and at the same time conveyed in the direction of the dirt hopper. In particular, the roller brush can have a plurality of bristles or also lobes extending essentially radially away from the axis of rotation.

In a further preferred manner, the sweepings container can extend parallel to the sweeping roller adjacent thereto, which further makes it possible to effectively take up the dirt swept up by the sweeping roller.

According to the invention, the floor cleaning machine furthermore has a feeler element which has a free end which extends into the dirt container so that the free end of the feeler element can come into contact with dirt in the dirt container. The feeler element is arranged in such a way that the distance between the free end of the feeler element and the bottom of the dirt container increases when the cleaning device is moved from the raised position to the lowered position. This ensures that the free end of the feeler element only extends maximally into the interior of the dirt container when the cleaning device is in the raised position. When the cleaning device is in the lowered position and thus in the operating position, the free end of the feeler element is, however, further spaced from the bottom of the dirt container and does not prevent it from being filled during cleaning.

In addition, according to the invention, the feeler element can execute a movement relative to the machine frame in which its free end executes a movement in a direction pointing away from the bottom of the dirt container. This structure makes it possible that when the dirt container is filled to a certain extent and the cleaning device is moved from the lowered position to the raised position, the feeler element first comes into contact with the dirt and then, provided the resistance from the dirt is sufficient , is pressed towards the machine frame. If the debris with which the probe element initially comes into contact is only in leaves or the like, its resistance is not sufficient to move the probe element, but rather the probe element pushes the debris aside as the cleaning device moves upwards.

Finally, according to the invention, means are provided for detecting the movement of the probe element relative to the machine frame, the means being designed to output a signal when a movement of the probe element is detected. This then generates a signal which indicates that the dirt container is sufficiently full when the feeler element moves from the lowered position to the raised position due to dirt in the dirt container when the cleaning device is moved.

Overall, it is achieved with the embodiment according to the invention that the device for detecting the fill level of the debris in the debris container does not hinder its filling during the cleaning operation, since the feeler element is further away from the bottom of the debris container when the cleaning device is in the lowered position . Furthermore, the filling level is reliably detected by the fact that mechanical contact is required between the free end of the feeler element and the debris, whereby light debris can be pushed aside by the feeler element and does not immediately cause the feeler element to move and thus the signal for the exceeding of the maximum fill level is triggered.

Thus, the construction according to the invention provides a device that works reliably and its functional reliability is not endangered by dirt, in order to detect the fill level in the dirt container of the cleaning device.

In a preferred embodiment, the cleaning device has a housing, wherein the dirt container can be pulled out of the housing laterally transversely to the direction of travel. Since the pushbutton element only protrudes deep into the dirt container when the cleaning device is in the raised position, but is further spaced from the floor in the lowered position, the pushbutton element does not hinder lateral movement of the dirt hopper when the cleaning device is in the lowered position Position is. The side pull-out, in turn, simplifies removal very much, so that it is easier for the user to empty the dirt container. It is further preferred if the debris container has a lateral opening which extends towards the floor and which is arranged in a side wall of the debris container as seen in the direction of travel of the floor cleaning machine. Then it is easily possible to empty the dirt hopper on one side, which can be comparatively short. Then the dirt container can simply be emptied into a container with a small opening. The feature of a dirt container in a cleaning device with a housing, which preferably extends parallel to the main brush adjacent thereto, wherein the dirt container can be pulled out of the housing laterally transversely to the direction of travel, represents an independently inventive concept in a floor cleaning machine, which is a machine frame on the machine frame provided undercarriage for moving the floor cleaning machine along a direction of travel over a floor surface to be cleaned and a cleaning device movably mounted on the machine frame, a cleaning element and a debris container having a floor being provided on the cleaning device, the cleaning device opposite the Machine frame can be adjusted between a lowered position and a raised position, the cleaning element being arranged in this way relative to the floor surface to be cleaned in the lowered position t that it can clean them, and in the raised position the cleaning device is at a distance from the floor surface to be cleaned. In this independently inventive concept, it is a preferred embodiment if the dirt container has a lateral opening which extends towards the floor and which is arranged in a lateral wall of the dirt container as seen in the direction of travel of the floor cleaning machine.

In a further preferred embodiment of the floor cleaning machine according to the invention, the feeler element is movably supported on a holder, the feeler element executing the movement relative to the machine frame relative to the holder. Accordingly, in this embodiment, a holder is provided on the machine frame, on which the button is movably, particularly preferably displaceably, attached.

Furthermore, it is preferred if the means for detecting the movement of the probe element relative to the machine frame comprise a switch which is attached to the holder and is actuated by the probe element when the probe element is moved relative to the holder towards the machine frame. In this embodiment, the signal can be generated in a simple manner with which the detection of a movement of the probe element is indicated by taking advantage of the fact that the electrical switch is closed by the movement.

In a further preferred embodiment, the holder is movably supported on the machine frame and coupled to the cleaning direction in such a way that the holder moves relative to the machine frame towards the dirt container when the cleaning device is moved from the lowered position to the raised position. In this embodiment, not only does the movement of the cleaning device from the lowered position into the raised position cause the feeler element to be moved in the dirt container towards the dirt, but this movement is reinforced by the fact that the holder also moves towards the dirt container and its Floor is moved. As a result, it can in turn be achieved that the entire arrangement of touch element and cleaning device can be configured such that the free end of the touch element is even further away from the bottom of the dirt container when the cleaning device is in the lowered position. Then the touch element hinders the cleaning operation and the associated filling of the dirt container to an even lesser extent.

In a further preferred embodiment, an actuating element which can be moved along a path of movement is provided, which is coupled to the cleaning device and can be moved by a motor between a first end and a second end of the path of movement. The actuating element is at the first end of the path of movement when the cleaning device is in the lowered position and the actuating element is at the second end of the path of movement when the cleaning device is in the raised position. Finally, the holder has a guide which engages the actuating element in such a way that when the actuating element moves from the first end of the movement path to the second end of the movement path, the holder is moved relative to the machine frame towards the dirt container.

In this embodiment, the fact that the actuating element, which is coupled to the cleaning device for effecting the adjustment between the lowered and the raised position, also engages with the holder or the guide provided thereon, and the movement of the holder towards the Debris container causes. The guide can in particular be designed as a guide groove or link into which a projection on the actuating element extends. With such a structure, only a single actuator coupled to the actuating element is required to effect the adjustment of the cleaning device and the movement of the holder. In a particularly preferred manner, can This actuator is a lifting element which has an output element which can be moved in a straight line by a motor, the actuating element being attached to the output element. In order to hold the cleaning device easily adjustable on the machine frame, in a further preferred embodiment the cleaning device can be attached to a swivel arm which is swivel-mounted on the machine frame about a second swivel axis, the output element being connected to the cleaning device via a cable .

In a further preferred embodiment, the holder can be held on the machine frame so as to be pivotable about a first pivot axis.

Fig. 1

ein Ausführungsbeispiel einer erfindungsgemäßen Bodenreinigungsmaschine in einer Seitenansicht zeigt,

Fig. 2

den Teil des Ausführungsbeispiels aus Fig. 1 mit der Reinigungseinrichtung zeigt, wobei die Reinigungseinrichtung in der abgesenkten Stellung ist,

Fig. 3

den Teil des Ausführungsbeispiels aus Fig. 1 mit der Reinigungseinrichtung zeigt, wobei die Reinigungseinrichtung in der ausgehobenen Stellung ist,

Fig. 4

mehrere perspektivische Ansichten des Kehrgutbehälters des Ausführungsbeispiels aus den Fig. 1 bis 3 zeigt,

Fig. 5

eine schematische Darstellung des Aufbaus der Reinigungseinrichtung des Ausführungsbeispiels in der abgesenkten Stellung zeigt und

Fig. 6

eine schematische Darstellung des Aufbaus der Reinigungseinrichtung des Ausführungsbeispiels in der ausgehobenen Stellung zeigt.

The present invention is explained below with reference to a drawing showing only a preferred embodiment, wherein

Fig. 1

shows an embodiment of a floor cleaning machine according to the invention in a side view,

Fig. 2

the part of the embodiment Fig. 1 shows with the cleaning device, wherein the cleaning device is in the lowered position,

Fig. 3

the part of the embodiment Fig. 1 shows with the cleaning device, wherein the cleaning device is in the raised position,

Fig. 4

several perspective views of the dirt container of the embodiment from FIG Figs. 1 to 3 shows,

Fig. 5

shows a schematic representation of the structure of the cleaning device of the embodiment in the lowered position and

Fig. 6

shows a schematic representation of the structure of the cleaning device of the embodiment in the raised position.

How out Fig. 1 As can be seen, the preferred exemplary embodiment of a floor cleaning machine 1 according to the invention for cleaning a floor surface 3 has a machine frame 5 on which, in addition to a chassis 7 with wheels, with which the floor cleaning machine 1 can be moved over the floor surface 3 to be cleaned, other structures as below other a seat 9 and a steering column 11 and a tank assembly 13 are attached. The plane is thereby created by the wheels of the chassis 7 defined, in which the floor surface 3 to be cleaned is arranged relative to the floor cleaning machine 1 and its machine frame 5.

In the embodiment shown here, the floor cleaning machine 1 is designed as a ride-on machine. However, the invention is equally applicable to machines in which a user is running after the machine.

How on that Figures 1 As can be seen from FIGS. 2 and 3, the floor cleaning machine 1 has a cleaning device 15 that is movably attached to the machine frame 5 in such a way that it is positioned between the Fig. 2 shown lowered position and the in Fig. 3 shown raised position can be adjusted. In the preferred exemplary embodiment shown here, the cleaning device 15 is designed as a sweeping device and has two sweeping rollers 17 as cleaning elements, which are driven to rotate about axes of rotation running essentially parallel to the plane of the floor surface 3, the axes of rotation also being essentially perpendicular to the normal direction of travel F of the floor cleaning machine 1 run. The brush rollers 17 have bristles 19 extending radially away from the axes of rotation, the free ends of which when the cleaning device 15 is in the lowered position ( Fig. 2 ) is to intervene with the floor surface 3 to be cleaned.

How further from the Figures 2 and 3 5 and 6, the cleaning device 15 also has a housing 21, and in the housing 21 there is a dirt container 23, which extends parallel to the brush rollers 17 and is arranged directly behind the brush rollers 17 when viewed opposite to the direction of travel F, which in Fig. 4 is shown in detail.

As further from the schematic representations in Figures 5 and 6th As can be seen, the cleaning device 15 has a swivel arm 25 which is connected with one end 27 to an arm 29 extending away from the housing 21. At the other end 31, the swivel arm 25 is connected to the machine frame 5 so that it can swivel about a swivel axis 33. The cleaning device 15 is thus adjusted between the lowered position and the raised position by a pivoting movement of the pivot arm 25.

For this purpose, a lifting element (not shown in the figures) is held on the machine frame 5, which is an output element 35 that can be moved in a straight line by a motor which also serves as an actuating element for adjusting the cleaning device 15, as will be explained below. The output and actuation element 35 can be moved between the first end 37 and the second end 39 of a movement path 41, the actuation element 35 being coupled via a cable 43 to the arm 29 attached to the housing 21 of the cleaning device 15, the cable 43 via a pulley 45 is guided.

As the Figures 5 and 6th show, the cleaning device 15 is in the lowered position when the actuating element 35 is at the first end 37 of the movement path 41. When the actuating element 35 is at the second end 39 of the movement path 41, the cleaning device 15 is in the raised position.

Furthermore, from the Figures 5 and 6th It can be seen that a holder 47 is mounted on the machine frame 5 so as to be pivotable about a pivot axis 49. A feeler element 51 is in turn attached to the holder 47 in such a way that its free end 53 can extend into the dirt container 23. It can also be seen that the feeler element 51 is attached in such a way that the distance of its free end 53 from the bottom 55 of the dirt container 23 increases when the cleaning device 15 is moved from the raised position to the lowered position.

At the end remote from the free end 53 of the feeler element 51, in the exemplary embodiment described here, the latter has an elongated hole 57 through which a bolt 59 that is firmly connected to the holder 47 extends. As a result, the feeler element 51 is held so displaceably on the holder 47 that the feeler element 51 can execute a movement relative to the machine frame 5 and also relative to the holder 47 which runs in a direction R away from the bottom 55 of the debris container 23 shows.

On the holder 47 and thus on the machine frame 5, means are also provided for detecting the previously described movement of the feeler element 51 relative to the machine frame 5 and the holder 47. These means comprise a switch 61 attached to the holder 47 which, as in FIGS Figures 5 and 6th can be seen, is actuated by the feeler element 51 when the feeler element 51 is moved relative to the holder 47 towards the machine frame 5. When the switch 61 is actuated by the end remote from the free end 53 of the feeler element 51, a signal is generated by which a movement of the feeler element 51 towards the machine frame 5 is indicated.

Finally, as already mentioned, the holder 47 is held on the machine frame 5 so that it can pivot about the pivot axis 49, so that it can move towards and away from the machine frame 5. How further in the Figures 5 and 6th As can be seen, the holder 47 has a guide in the form of a guide groove 61 with which the actuating element 35 engages and which is curved towards the machine frame 5. This leads to the fact that when the actuating element 35 is moved from the first end 37 of the movement path 41 to its second end 39 and the cleaning device 15 is thus moved from the lowered position to the raised position, the holder 47 and thus also the Move the feeler element 51 towards the dirt container 23.

The holder 47 is thus movably supported on the machine frame 5 and coupled to the cleaning direction 15 that the holder 47 moves relative to the machine frame 5 towards the dirt container 23 and its floor 55 when the cleaning device 15 is moved from the lowered position to the raised position is moved.

The dirt hopper 23 can be pulled out of the housing 21 to the side for emptying and, as in FIG Fig. 4 It can be seen, next to the base 55, an opening 65 facing the sweeping rollers 17 through which dirt loosened or lifted from the base surface 3 by the sweeping rollers 17 can enter the debris container 23 during operation. Furthermore, the dirt container 23 has a lateral opening 67 which extends towards the floor (55) and which is arranged in a lateral wall of the dirt container 23 as seen in the direction of travel of the floor cleaning machine. The dirt container 23 can be emptied in a simple manner via this opening 67. Since the opening 67 has only a small width, the dirt container 23 can also be emptied into a container with only a small inlet opening.

In this context, it should be pointed out once again that the feature of a debris container 23 in a cleaning device 15 with a housing 21, which preferably extends parallel to one or more sweeping rollers 17 adjacent thereto, the debris container 23 laterally out of the housing 21 transversely to the direction of travel is extractable, represents an independently inventive concept. This applies in particular in connection with a floor cleaning machine 1, which has a machine frame 5, a chassis 7 provided on the machine frame 5 for moving the floor cleaning machine 1 along a direction of travel over a direction to be cleaned Floor surface 3 and a cleaning device 15 movably mounted on the machine frame 5, with a cleaning element, in particular in the form of a rotary brush 17, and a dirt container 23 having a floor 55 being provided on the cleaning device 15, the cleaning device 15 being opposite the machine frame 5 can be adjusted between a lowered position and a raised position.

The embodiment of a floor cleaning machine 1 described above can be operated as follows.

First, the cleaning device 15 is removed from the raised position ( Fig. 6 ) to the lowered position ( Fig. 5 ) adjusted by the actuating element 35 from the in Fig. 6 The position shown at the second end 39 of the movement path 41 is moved to the first end 37 by means of the lifting element (not shown). The cleaning device 15 is lowered and at the same time the holder 47 is pivoted towards the machine frame 5 due to the engagement of the actuating element 35 with the guide groove 63. As a result, the free end 53 of the feeler element 51 is moved out of the dirt container 23 and further away from its bottom 55, so this would be the case if only the cleaning device 15 were lowered.

By lowering the cleaning device 15, the bristles 19 of the sweeping rollers 17 engage with the floor surface 3 to be cleaned and clean it when the sweeping rollers 17 are driven to rotate, with debris 69 whirled up by the sweeping rollers 17 being brought into the debris container 23. All of this can take place when the floor cleaning machine 1 is moved over the floor surface 3 by means of the chassis 7.

After the end of the cleaning process, the actuating element 35 is moved from the first end 37 of the movement path 41 back to the second end 39, so that the cleaning device is moved from the lowered position back into the raised position, ie from the position shown in FIG Fig. 5 position shown in Fig. 6 shown. During this movement of the actuating element 35, the holder 47 is pivoted with the feeler element 51 towards the bottom 55 of the dirt container 23. Due to this movement of the holder 47 and the upward movement of the cleaning device 15 towards the machine frame 5, the free end 53 of the feeler element 51 approaches the floor 55 of the dirt container 23 or is moved towards it.

If there is a sufficient amount of debris 69 in the debris container 23, if the debris 69 is not simply pushed aside by the feeler element 51, the feeler element 51 can be moved relative to the machine frame 5 and also relative to the holder 47 towards the machine frame 5. For this purpose, the elongated hole 57 is displaced relative to the bolt 59, the switch 61 being actuated. The actuation of the switch 61 triggers a signal and it can be indicated to the driver of the floor cleaning machine 1 that the dirt container 23 must be emptied.

This can be done in a simple manner by pulling the dirt container 23 out of the side of the housing 21 of the cleaning device 15 and pouring it out.

With the floor cleaning machine 1 it is achieved that the device for detecting the filling level of the debris 69 in the debris container 23 does not hinder its filling during the cleaning operation, since the feeler element 51 is further away from the floor when the cleaning device 15 is in the lowered position 55 of the dirt container 23 is. In addition, the fill level is reliably detected by the fact that mechanical contact is required between the free end 53 of the feeler element 51 and the debris 69, whereby light debris 69 can be pushed aside by the feeler element 51 and does not immediately cause the feeler element 51 to move moves and thus the signal for exceeding the maximum fill level is triggered.

A device that works reliably and whose functional reliability is not endangered by dirt is therefore provided in order to detect the fill level in the dirt container 23. Furthermore, the engagement of the actuating element 35 with the guide groove 63 in the holder 47 has the effect that not only is the movement of the cleaning device 15 from the lowered position to the raised position moved the feeler element 51 in the dirt container 23 towards the dirt 69, Instead, this movement is reinforced by the fact that the holder 47 is additionally pivoted towards the dirt container 23 and its floor 55. This in turn makes it possible for the entire arrangement of probe element 51 and cleaning device 15 to be designed in such a way that the free end 53 of the probe element 51 is even further away from the bottom 55 of the dirt container 23 when the cleaning device 15 is in the lowered position. Then the feeler element 51 hinders the cleaning operation and the associated filling of the dirt container 23 even less.

Reference number:

1

Floor cleaning machine

3

Floor area

5

Machine frame

7th

landing gear

9

Seat

11

Steering column

13th

Tank arrangement

15th

Cleaning facility

17th

Rotary brushes

19th

Bristles

21st

casing

23

Debris container

25th

Swivel arm

27

End - swivel arm

29

poor

31

End - swivel arm

33

Swivel axis - swivel arm

35

Actuator

37

first end

39

second end

41

Trajectory

43

Cable

45

Pulley

47

holder

49

Pivot axis holder

51

Tactile element

53

free end d. Probe element

55

Floor - debris container

57

Long hole

59

bolt

61

counter

63

Guide groove

65

opening

67

side opening

69

Debris

Claims (14)

Floor cleaning machine with a machine frame (5),
with a chassis (7) provided on the machine frame (5) for moving the floor cleaning machine (1) along a direction of travel over a floor surface (3) to be cleaned,
with a cleaning device (15) movably mounted on the machine frame (5),
a cleaning element (17) and a dirt container (23) having a base (55) being provided on the cleaning device (15),
wherein the cleaning device (15) can be adjusted with respect to the machine frame (5) between a lowered position and a raised position,
wherein in the lowered position the cleaning element (17) is arranged relative to the floor surface (3) to be cleaned in such a way that it can clean it, and in the raised position the cleaning device (15) is at a distance from the floor surface (3) to be cleaned ,
with a feeler element (51) which has a free end (53) which extends into the dirt container (23),
wherein the feeler element (51) is arranged in such a way that the distance between the free end (53) of the feeler element (51) and the bottom (55) of the dirt container (23) increases when the cleaning device (15) moves from the raised position into the the lowered position is adjusted,
wherein the feeler element (51) can execute a movement relative to the machine frame (5) in which its free end (53) executes a movement in a direction facing away from the bottom (55) of the dirt container (23), and
with means (61) for detecting the movement of the probe element (51) relative to the machine frame (5), the means (61) being designed to output a signal when a movement of the probe element (51) is detected. Floor cleaning machine according to claim 1, wherein the cleaning element is designed as at least one sweeping element (17) which in the lowered position comes into engagement with the floor surface (3) to be cleaned and which in the raised position disengages with the floor surface (3) to be cleaned is. Floor cleaning machine according to claim 2, wherein the sweeping element is designed as a sweeping roller (17) which is driven to rotate about an axis of rotation extending parallel to the plane of the floor surface (3) to be cleaned. Floor cleaning machine according to claim 3, wherein the debris container (23) extends parallel to the broom (17) adjacent thereto. Floor cleaning machine according to one or more of claims 1 to 4, wherein the cleaning device (15) has a housing (21) and
wherein the dirt container (23) can be pulled out of the housing (21) laterally transversely to the direction of travel. Floor cleaning machine according to claim 5, wherein the dirt container (23) has a lateral opening (67) which extends towards the floor (55) and which is arranged in a lateral wall of the dirt container (23) as seen in the direction of travel of the floor cleaning machine. Floor cleaning machine according to one or more of claims 1 to 6, wherein the feeler element (51) is movably supported on a holder (47) in such a way that the feeler element (51) can move relative to the machine frame (5) relative to the holder (47). executes. Floor cleaning machine according to claim 7, wherein the feeler element (51) is slidably attached to the holder (47). Floor cleaning machine according to Claim 7 or 8, the means for detecting the movement of the feeler element (51) relative to the machine frame (5) comprising a switch (61) which is attached to the holder (47) and actuated by the feeler element (51) when the feeler element (51) is moved relative to the holder (47) towards the machine frame (5). Floor cleaning machine according to one or more of Claims 7 to 9, the holder (47) being movably supported on the machine frame (5) and coupled to the cleaning direction (15) in such a way that the holder (47) is relative to the machine frame (5) moved towards the dirt container (23) when the Cleaning device (15) is moved from the lowered position into the raised position. Floor cleaning machine according to claim 10, wherein an actuating element (35) which can be moved along a movement path (41) is provided, which is coupled to the cleaning device (15) and is motorized between a first end (37) and a second end (39) of the movement path (41) is movable,
wherein the actuating element (35) is at the first end (37) of the movement path (41) when the cleaning device (15) is in the lowered position, and wherein the actuating element (35) is at the second end (39) of the movement path (41) when the cleaning device (15) is in the raised position,
wherein the holder (47) has a guide (63) which engages with the actuating element (35) so that when the actuating element (35) moves from the first end (37) of the path of movement (41) to the second end (39 ) the movement path (41) of the holder (47) is moved relative to the machine frame (5) towards the dirt container (23). Floor cleaning machine according to Claim 10 or 11, the holder (47) being mounted on the machine frame (5) so as to be pivotable about a first pivot axis (49). Floor cleaning machine according to claim 11 or 12, wherein a lifting element is provided with an output element (35) which can be moved in a straight line by a motor and
wherein the actuator (35) is attached to the output member. Floor cleaning machine according to claim 13, wherein the cleaning device (15) is attached to a swivel arm (25) which is supported on the machine frame (5) such that it can swivel about a second swivel axis (33),
wherein the output element (35) is connected to the cleaning device (15) via a cable pull (43).

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