EP3274511B1 - Sweeping machine - Google Patents

Description

The invention relates to a unit comprising a sweeping tool device and a suction mouth device for a sweeper according to the preamble of claim 1.

The invention further relates to a sweeper, comprising a chassis, a sweeping tool device which has at least one sweeping tool and which is detachably mountable or mounted on the chassis, and a suction device for extracting dirt from a floor to be cleaned, which has a suction unit for generating a suction flow and has a suction mouth device with at least one suction opening for the suction flow to be applied to the floor to be cleaned, the suction mouth device sitting on the sweeping tool device and forming a unit with it, which as a whole can be fixed to the chassis and as a whole can be detached from the chassis according to Preamble of claim 2.

From the DE 10 2009 014 560 A1 a sweeper with a replaceable sweeping brush device is known.

From the EP 2 447 419 A1 a floor cleaning machine with a coupling device is known.

From the EP 2 168 424 A2 a stem-receiving unit for a leaf collecting vehicle is known.

From the FR 2 949 795 A1 a suction mouth device is known.

The DE 10 2009 022 085 A1 discloses a suction device for receiving material from a surface with a suction nozzle, the suction device being provided for moving over the surface. At least one front roller is arranged in front of the suction nozzle in the direction of travel.

The EP 0 668 403 A1 discloses a suspension for attaching tillage units to a tractor or carrier vehicle.

The invention has for its object to provide a unit and a sweeper of the type mentioned, which allows easy use of the unit and the sweeper and allows extensive uses.

This object is achieved according to the invention in the unit and sweeper mentioned at the outset in that the suction mouth device is held on the sweeping tool device via a swivel joint.

In the solution according to the invention, the sweeping tool device holds the suction mouth device. A sweeping-suction module is thereby formed, which can be fixed as a unit to the sweeper and can accordingly be detached therefrom.

When the sweeping tool device is removed from the sweeper, the suction mouth device is also removed.

As a result, if a tool device other than the sweeping tool device is to be used with the corresponding vehicle, a space for other applications is provided. For example, installation space can then be used for carrying out a separate suction hose, for example for grass extraction (in connection with the use of a cutting deck as a tillage tool) or for water extraction (for example in connection with the use of a scrubbing tool device).

Since the suction mouth device is not seated on the corresponding machine for such other operating modes, the suction mouth device cannot be contaminated.

Furthermore, easy maintenance and repair can be carried out.

If the corresponding sweeper is used, for example, in winter service without a sweeping tool device, the suction mouth device is also not exposed to weather-related influences and, in particular, no de-icing salt is applied.

The arrangement of the suction mouth device on the sweeping tool device allows it to be ideally positioned for suction and, in particular, to be positioned below a chassis. Protection against collision damage (for example when driving over curbs) is achieved. Furthermore, a suction line between the suction mouth device and form a dirt collecting container in a straight line without kinks and the like. This in turn avoids the risk of deposits in the suction line.

The suction mouth device is held on the sweeping tool device via a swivel joint. In this way, for example, the suction mouth device can be lifted off a floor on which the sweeper stands for non-suction operation in order to avoid the risk of damage. As an alternative or in addition, the swivel joint can be used to enable the suction mouth device to evade when it encounters obstacles in order to avoid damage.

The sweeping tool device advantageously has a carrier device on which the at least one sweeping tool is held, on which the suction mouth device is held, and on which a first fixing device for releasably fixing the carrier device to the chassis is arranged. This makes it possible to provide a sweeping suction module with the advantages mentioned. A quick change of the sweeping tool device on the sweeper can be carried out.

It is provided, for example, that the carrier device of the sweeping tool device comprises a cross member, on which the at least one sweeping tool is held, and comprises at least one longitudinal member, the suction mouth device being held on the cross member and / or the at least one longitudinal member.

The result is a compact structure with optimized application options.

It is expedient if a first connection is arranged on the suction mouth device and the suction device has a second connection which can be connected to the first connection, the first connection having the second connection when the sweeping tool device is mounted on the chassis connected is. As a result, a fluid-effective connection between the suction mouth device and the remaining part of the suction device can be carried out in a simple manner when the sweeping tool device is mounted on the sweeper. In one embodiment, the second port remains on the sweeper. It can also be provided that a suction line, on which the second connection is arranged, is removed from the sweeper before the sweeping tool device with the suction mouth device is removed.

In particular, a simple connection can be carried out if a plug-in coupling is provided for fluidically connecting the first connection to the second connection.

It is also advantageous if the suction mouth device has a wheel device for driveability on the floor to be cleaned. As a result, the suction mouth device can be guided on the floor to be cleaned and an optimized suction result can be achieved.

It is very particularly advantageous if the suction mouth device with the at least one suction opening is arranged in relation to the at least one sweeping tool in such a way that, in a sweeping operation, debris is fed to the at least one suction opening. This results in an optimized cleaning result.

A risk of damage to the suction mouth device is reduced if, when the sweeper stands on the floor to be cleaned and the sweeping tool device is mounted on the chassis, the suction mouth device is positioned below the chassis in relation to the direction of gravity and is in particular positioned between the wheels of the sweeper and / or is positioned outside a driver's seat of the sweeper. When approaching an obstacle, the suction mouth device is usually not the first element of the sweeper that bumps. This arrangement is also particularly advantageous for an optimized guidance of a Suction line between the suction mouth device and a suction unit. In particular, the suction line can be guided without kinks and bends, that is to say in particular at least approximately in a straight line. This minimizes the risk of deposits in the suction line.

It is particularly advantageous if the suction mouth device is also removed from the chassis when the sweeping tool device is removed from the chassis. This provides space for other applications and there is no risk of damage to the suction mouth device for applications outside of a sweeping operation, since the suction mouth device does not remain on the sweeper (which is then used for applications other than sweeping applications). In addition, the suction mouth device is removed "synchronously" with the removal of the sweeping tool device from the sweeper. Only one suction line connection between the suction mouth device and the rest of the suction device has to be released.

In one embodiment, a fixing device for detachably mounting the sweeping tool device on the chassis is provided, which comprises a first fixing device which is arranged on the sweeping tool device and comprises a second fixing device which is arranged on the chassis, the first fixing device and the second fixing device are adapted to each other. This enables a quick change to be carried out in a simple manner. With its second fixing device, the fixing device can also be used to fix other tillage tool devices on the sweeper.

It is advantageous if the first fixing device comprises a first contact area and a second contact area, the second fixing device comprises a third contact area for the first contact area and a fourth contact area for the second contact area, and the fixing device has a tensioning device for clamping the sweeping tool device to the chassis . It can be done easily Carry out a jam on the system areas. The tensioning device is spaced apart from the contact areas and separate from these. The jamming on the system areas can be effected and secured via the tensioning device. This makes it easy to change quickly.

In particular, the first contact area and the second contact area are opposite and in particular face away from one another. As a result, for example, the fourth contact area can also be used to achieve a downward support with respect to the direction of gravity. This simplifies the assembly process itself and pre-positioning is achieved.

For the same reason, it is favorable if the third investment area and the fourth investment area are opposite one another and in particular face one another.

It is then also advantageous if the second fixing device has an immersion space between the third contact area and the fourth contact area, in which an element of the first fixing device with the first contact area and the second contact area can be immersed. The fourth contact area can then also serve as a downward support during the assembly process. The third contact area can serve to prevent "tipping away" during the assembly process. This generally facilitates the positioning of the sweeping tool device on the chassis.

In order to provide sufficiently large contact areas, it is favorable if the first contact area and / or the second contact area has at least two spaced partial areas and / or the third contact area and / or the fourth contact area has at least two spaced partial areas. In this way, for example, a support or jamming can be carried out on opposite sides with respect to a central plane of the chassis to reach. This results in a stable fixability of the sweeping tool device on the chassis and also the assembly process itself is facilitated.

It is furthermore favorable if the first contact area and / or the third contact area has an oblique contact surface in relation to a longitudinal direction of the chassis, in particular a distance between the third contact area and the fourth contact area varying in the longitudinal direction of the chassis and in particular in the direction downsized from the front end to a rear end of the chassis. This provides tolerance compensation. In the event of a final bracing, clamping can be achieved, in which case the associated system areas can be pressed on by the tensioning device.

It can be provided that the third contact area and the fourth contact area are arranged on a cross member and on one or more longitudinal members of the chassis. This results in a simple interface for fixing the sweeping tool device.

It is very particularly favorable if the tensioning device is designed such that an element of the first fixing device with the first contact area and the second contact area can be clamped with an element of the second fixing device with the third contact area and the fourth contact area. The corresponding element of the first fixing device is, for example, a longitudinal member of the first fixing device. The corresponding element of the second fixing device is, for example, a cross member of the chassis. This results in a fixation in a simple manner, which in turn can be released in a simple manner.

It is favorable if the tensioning device comprises an eccentric, by means of which a relative translational movement between the sweeping tool device and the chassis can be effected during a tensioning process and / or when a tensioning is released. This results in simple prepositioning before actuation of the tensioning device or an ejector function can be achieved when a tension is released. A certain tolerance is allowed in the investment areas. A final pressing and jamming then takes place through the tensioning device. The ejector function makes disassembly easier.

In a structurally simple exemplary embodiment, the tensioning device comprises a rotatable member on which one or more engagement elements are arranged, and the tensioning device comprises one or more counter-elements for the engagement or engagement elements, wherein (i) the rotatable member is arranged on the first fixing device and that or the counter elements are arranged on the second fixing device, or (ii) the rotatable member is arranged on the second fixing device and the counter element (s) are arranged on the first fixing device. This makes it easy to implement a clamping device with an eccentric. A mechanically robust clamping device can be provided.

In particular, the at least one engagement element has a recess into which the counter element can be brought, the recess in particular being eccentric to an axis of rotation of the rotatable member. A tension can thereby be achieved in a simple manner, an eccentric being formed in a simple manner in the case of an eccentric arrangement.

In one exemplary embodiment, the at least one engaging element has a recess with a first flank and a second flank, whereby the first flank acting on a counter element can cause a displacement of the counter element in a first direction and one when the second flank acts on a counter element Displacement of the counter element in a second direction opposite to the first direction can be effected. The first flank and the second flank lie opposite one another in particular. The second flank is, for example, convexly curved. A shift can be made in particular via the first edge of the counter element (and thus a carrier device on which the counter element is arranged) between the carrier device and the chassis, which presses abutment areas against one another when a clamping position is brought about on the clamping device. By releasing the clamping position, the second flank can act on a counter element and thus on the carrier device in order to move the carrier device in a counter direction. An ejector function is thereby implemented, which is a type of prepositioning for disassembly.

It is expedient if an actuating element is assigned to the rotatable member. The actuator is, for example, a rod. This allows bracing to be carried out in a simple manner with an actuation remote from the rotatable member. This results in simple operation.

It is also expedient if the first fixing device has at least one bar (which is formed, for example, by a longitudinal member of the sweeping tool device) with a recess that is open at the end, and the second fixing device has at least one pin for receiving in the recess, in particular the pin in the recess by pushing the at least one bar can be brought. An additional torque support can thereby be achieved via the fixing device. The at least one pin is mushroom-shaped, for example.

For this reason, it is advantageous if the at least one pin is spaced apart from the third contact area and the fourth contact area and / or the at least one recess on the at least one bar is spaced apart from the first contact area and the second contact area. This results in effective torque support.

The at least one pin is advantageously arranged on a longitudinal member of the chassis and protrudes to an opposite side of the Chassis or protrudes outwards. This results in additional torque support in a simple manner.

Accordingly, when the sweeping tool device is mounted on the chassis, the at least one bar is positioned between the longitudinal members of the chassis or the longitudinal members lie between the bars. This results in the possibility that the longitudinal beams of the chassis are on the outside and, accordingly, the strips of the sweeping tool device are on the inside, or that the strips are on the outside and the longitudinal beams of the chassis are on the inside.

According to the invention, a unit comprising a sweeping tool device and a suction mouth device for a sweeper is provided, wherein the sweeping tool device has at least one sweeping tool, and wherein a suction mouth device is held on the sweeping tool device via a swivel joint.

In particular, the sweeping tool device is designed as a sweeping-suction module.

Figur 1

eine Seitenansicht eines Ausführungsbeispiels einer erfindungsgemäßen Bodenreinigungsmaschine in Form einer Kehrmaschine mit an einem Fahrgestell montierter Kehrwerkzeugvorrichtung;

Figur 2

eine Vorderansicht der Bodenreinigungsmaschine gemäß Figur 1 in der Richtung A;

Figur 3

eine Unteransicht der Bodenreinigungsmaschine gemäß Figur 1 in der Richtung B;

Figur 4

das gleiche Fahrzeug wie in Figur 1, wobei anstatt der Kehrwerkzeugvorrichtung an dem Fahrgestell eine Frontkrafthebevorrichtung angeordnet ist;

Figur 5

eine Vorderansicht des Fahrzeugs gemäß Figur 4 in der Richtung C;

Figur 6

eine Unteransicht des Fahrzeugs gemäß Figur 4 in der Richtung D;

Figur 7

eine Seitenansicht eines Ausführungsbeispiels einer erfindungsgemäßen Kehrwerkzeugvorrichtung (wie sie an der Bodenreinigungsmaschine gemäß Figur 1 angeordnet ist);

Figur 8

eine perspektivische Darstellung der Kehrwerkzeugvorrichtung gemäß Figur 7, mit einer Teildarstellung des Fahrgestells, an welchem die Kehrwerkzeugvorrichtung montiert ist;

Figur 9

eine Seitenansicht der Anordnung gemäß Figur 8;

Figur 10

eine Schnittansicht längs der Linie 10-10 gemäß Figur 2 für die Kehrwerkzeugvorrichtung, wobei diese noch nicht am Fahrgestell montiert ist;

Figur 11

die gleiche Ansicht wie Figur 10 bei an dem Fahrgestell montierter Kehrwerkzeugvorrichtung;

Figur 12

eine schematische Teildarstellung einer weiteren Kehrwerkzeugvorrichtung, welche an einem Fahrgestell montiert ist;

Figur 13

eine Seitenansicht einer Frontkrafthebevorrichtung (entsprechend der Frontkrafthebevorrichtung, welche in Figur 4 an der Bodenreinigungsmaschine montiert ist);

Figur 14

eine perspektivische Darstellung der Frontkrafthebevorrichtung gemäß Figur 13 mit einer Teildarstellung eines Fahrgestells, an welchem die Frontkrafthebevorrichtung montiert ist;

Figur 15

eine Seitenansicht der Anordnung gemäß Figur 14;

Figur 16

eine Schnittansicht längs der Linie 16-16 gemäß Figur 5 der Frontkrafthebevorrichtung, wenn sie von dem Fahrgestell gelöst ist; und

Figur 17

die gleiche Ansicht wie Figur 16, wenn die Frontkrafthebevorrichtung an dem Fahrgestell montiert ist.

The following description of preferred embodiments serves in conjunction with the drawings to explain the invention in more detail. Show it:

Figure 1

a side view of an embodiment of a floor cleaning machine according to the invention in the form of a sweeper with a sweeper tool mounted on a chassis;

Figure 2

a front view of the floor cleaning machine according to Figure 1 in direction A;

Figure 3

a bottom view of the floor cleaning machine according to Figure 1 in direction B;

Figure 4

the same vehicle as in Figure 1 , wherein a front power lifting device is arranged on the chassis instead of the sweeping tool device;

Figure 5

a front view of the vehicle according to Figure 4 in the direction C;

Figure 6

a bottom view of the vehicle according to Figure 4 in the direction D;

Figure 7

a side view of an embodiment of a sweeping tool device according to the invention (as shown on the floor cleaning machine Figure 1 is arranged);

Figure 8

a perspective view of the sweeper tool according to Figure 7 , with a partial representation of the chassis on which the sweeping device is mounted;

Figure 9

a side view of the arrangement according Figure 8 ;

Figure 10

a sectional view taken along line 10-10 Figure 2 for the sweeping tool device, which is not yet mounted on the chassis;

Figure 11

the same view as Figure 10 with sweeper device mounted on the chassis;

Figure 12

a partial schematic representation of another sweeping tool device which is mounted on a chassis;

Figure 13

a side view of a front linkage (corresponding to the front linkage, which in Figure 4 mounted on the floor cleaning machine);

Figure 14

a perspective view of the front power lifting device according to Figure 13 with a partial view of a chassis on which the front power lifting device is mounted;

Figure 15

a side view of the arrangement according Figure 14 ;

Figure 16

a sectional view taken along the line 16-16 Figure 5 the front linkage when released from the chassis; and

Figure 17

the same view as Figure 16 when the front linkage is mounted on the chassis.

An exemplary embodiment of a floor cleaning machine, which is shown in FIGS. 1 to 3 and 4 to 6 with different attachments and is designated there by 10, comprises a chassis 12. The chassis 12 has a first part 14 and a second part 16. The first part 14 and the second part 16 are connected to one another via an articulated joint 18. A pivot axis 20 of the articulated joint 18, when the floor cleaning machine 10 stands on a floor 22, the floor being level, is oriented transversely and in particular perpendicularly to this floor 22.

The chassis 12 has a front end 24. The front end 24 is formed on the first part 14. The chassis 12 also has a rear end 26. The rear end 26 is formed on the second part 16.

The chassis 12 extends in a longitudinal direction 28 with respect to a non-pivoted position of the first part 14 to the second part 16, which extends from the rear end 26 to the front end 24.

When driving straight ahead in the forward direction 30, the longitudinal direction 28 of the chassis 12 is parallel to this forward direction 30.

A front wheel device 32 with a left front wheel 34 and a right front wheel 36 sits on the first part 14 of the chassis 12.

A rear wheel device 38 with a left rear wheel 40 and a right rear wheel 42 sits on the second part 16 of the chassis 12.

In one embodiment, all four wheels 34, 36, 40, 42 are driven. Wheel motors in particular are provided for this purpose.

A driver seat 44 is arranged on the first part 14. In one embodiment, a driver's cab 46 is provided in which the driver's seat 44 is positioned.

A housing 48 is arranged on the second part 16 and accommodates components of the floor cleaning machine 10, such as a motor for a travel drive.

A structure 50, which has a dirt container 52, sits on the housing 48.

The floor cleaning machine 10 comprises a suction device designated as a whole by 54. The suction device 54 comprises a suction unit 56. This is arranged, for example, in the housing 48 or on the structure 50. The suction unit 56 provides a suction flow, via which dirt can be extracted from the floor 22 and collected in the dirt container 52.

A suction line 58 leads from the suction unit 56 into an area of the first part 14 of the chassis 12 below the driver's cab 46. The suction line 58 is in particular straight.

In one embodiment ( Figures 1 to 3 ) the floor cleaning machine 10 is designed as a sweeper or functions as a sweeper. For this purpose, a sweeping tool device 60 is arranged on the chassis 12 as a tillage tool device ( Figures 1 to 3 , 7 to 12 ).

The sweeping tool device 60 has a carrier device 62. In one exemplary embodiment, the carrier device 62 comprises a cross member 64. A first tool holder 66a and a second tool holder 66b are arranged on the carrier device 62 and in this case on the cross member 64.

The first tool holder 66a and the second tool holder 66b are each fixed to the cross member 64 via a holding device 68.

In one embodiment, the holding device 68 is designed as a polygonal link, such as a trapezoidal link or parallelogram link.

A height position of the respective first tool holder 66a or 66b relative to the cross member 64 can be adjusted via the holding device 68.

As a result, the tool holders 66a, 66b, when the sweeping tool device 60 is mounted on the chassis 12, can be brought into a transport position (cf. Figure 1 ) and can be brought into a working position by means of corresponding positioning via the holding device 68, in which a sweeping operation on the floor 22 can be carried out.

A corresponding height adjustment device is provided, which comprises, for example, a hydraulic or pneumatic cylinder.

A drive motor 70 is arranged on each of the first tool holder 66a and the second tool holder 66b. A sweeping tool 72, which is seated on the corresponding tool holder 66a or 66b, can be rotated about an axis of rotation 74 via this.

A sweeping tool 72 is designed in particular as a plate brush with a brush plate 76. Brushes 78 are held on the brush plate 76. The brushes 78 are oriented at an obtuse angle to the brush plate 76 without the application of force. This obtuse angle is, for example, approximately 135 °.

A lower end of the brushes 78 lies on an envelope plane.

In one embodiment, this envelope plane lies in a transport position of the sweeping tool device 60 ( Figure 1 ) at least approximately parallel to the floor 22 on which the floor cleaning machine 10 with the front wheel device 32 and the rear wheel device 38 stands.

The respective holding device 68 for the first tool holder 66a and the second tool holder 66b form a holding arm which is positioned on the cross member 64. In one embodiment, these holding arms each sit at an obtuse angle to the cross member 64.

In principle, it is possible for the holding device 68 to be seated on the cross member 64 via a swivel joint 80. A corresponding angular position with respect to the cross member 64 can be determined via this swivel joint 80. A “sweeping width” can thereby be set as the distance between sweeping tools 72, which are held on the first tool holder 66a and on the second tool holder 66b.

To set a pivot position of the holding device 68 via the respective swivel joint 80, an adjusting device 81 is provided, for example, which comprises, for example, a hydraulic or pneumatic cylinder.

In one embodiment, the first tool holder 66a and the second tool holder 66b are positioned such that the corresponding sweeping tools 72 protrude both over a front end of the floor cleaning machine 10 and over a side end.

The suction device 54 has a suction mouth device 82. The suction mouth device 82 has a suction opening 84. Via the suction opening 84, the floor to be cleaned can be acted upon by the suction flow provided by the suction unit 56; Dirt can be sucked in at the suction opening 84 and guided into the dirt container 52 via the suction line 58.

The suction mouth device 82 has a box 86 on which the suction opening 84 is formed.

A tube element 88, which forms a first connection 90, is arranged on the box 86 of the suction mouth device 82.

The suction device 54 has a second connection 92 on the suction line 58 ( Figure 3 ) to cooperate with the first connection 90.

In an operative operating mode, the pipe element 88 is fluidly connected via the first connection 90 to the suction line 58 via its second connection 92, so that dirt sucked in at the suction opening 84 can be suctioned off via the suction line 58.

In particular, the first connection 90 and the second connection 92 are designed such that a plug connection is possible.

The first connection 90 is in fluid connection with the suction opening 84 on the suction mouth device 82. In the box 86, a fluid space 94 is formed between the suction opening 84 and the first connection 90, which can be flowed through accordingly.

The suction mouth device 82 with the box 86 is held on the carrier device 62 of the sweeping tool device 60 via a holder 96.

The sweeping tool device 60 with the suction mouth device 82 held thereon forms a sweeping-suction module.

In one embodiment, the carrier device 62 has a first longitudinal beam 98a and a second longitudinal beam 98b. The longitudinal beams 98a, 98b are spaced apart from one another and in particular spaced apart parallel to one another. They each sit on the cross member 84 and extend transversely and in particular perpendicularly thereto.

The holder 96 is mounted on the longitudinal beams 98a, 98b between them.

In one embodiment, the box 86 of the suction mouth device 82 is held on the holder 96 via a swivel joint 100. A pivot axis 102 is oriented parallel to the axes of rotation of the rear wheel device 38 or front wheel device 32. The pivot axis 102 is oriented at least approximately parallel to the floor 22 when the floor cleaning machine 10 stands thereon over the front wheel device 32 and the rear wheel device 38.

An adjusting device 104 is provided, by means of which a pivoting position of the box 86 on the holder 96 can be set. The adjustment device 104 comprises, for example, a pneumatic or hydraulic cylinder.

The adjustment device 104 can ensure an optimized floor positioning of the suction opening 84, in particular in a working position of the sweeping tool device 60. The suction mouth device 82 can also be held at a distance from the floor 22.

In one embodiment, the suction mouth device 82 comprises a wheel device 106, which is arranged in particular on the box 86.

As a result, the suction mouth device 82 is movable on the floor 22 in a working operation.

The suction opening 84 is oriented towards the sweeping tools 72. In one exemplary embodiment, it has a boundary wall 107 (compare, for example Figure 7 ), which is at an angle to a bottom 108 of the box 86.

With the sweeping tool device 60 mounted on the floor cleaning machine 10, the suction mouth device 82 is positioned below the chassis 12, that is to say between the floor 22 and the chassis 12. In particular, it is positioned below the driver's cab 46.

In one embodiment, it is positioned between the left front wheel 34 and the right front wheel 36.

It is positioned so that dirt particles can flow from the sweeping tools 72 to the suction opening 84.

The suction mouth device 82 and the sweeping tool device 60 with the holding devices 68 and the tool holders 66a, 66b form a unit, namely the sweeping-suction module. This unit can be assembled or removed from the chassis 12 as a whole.

For example, a pipe section of the suction line 58, on which the connection 92 is arranged, is removed before the sweeping suction module is removed. This piece of pipe is clamped between the first connection 90 and an upper connection.

After a (re) assembly of the sweeping suction module on the chassis 12, this piece of pipe is used again.

If this unit is removed from the chassis 12, then the suction mouth device 82 is also no longer arranged on the floor cleaning machine 10. A corresponding room is then made available for further applications.

If, for example, the floor cleaning machine 10 is used for winter service applications such as snow removal, then the suction mouth device 82 - which is removed from the machine 10 - is also not exposed to weather-related influences and is exposed to salt. In a mowing operation, for example, the suction mouth device is not contaminated and no complex cleaning is necessary.

The installation space provided can be used, for example, for the central passage of a separate suction hose, for example for grass extraction during a mowing operation or for water extraction during a scrubbing operation (if the corresponding tool device is fixed on the chassis 12).

Overall, the maintenance and repair of the floor cleaning machine 10 is made easier.

The guidance of the suction line 58 can be optimized with regard to the fluid guidance; it can be guided "straight" without kinks, bends and the like. The risk of deposits in the suction line 58 can thereby be kept low.

The suction mouth device 82 is positioned below the chassis 12 and in particular under the driver's seat 44 during a cleaning operation. As a result, collision damage (such as when driving over curbs) can be avoided or the risk of collision damage can be minimized.

If other tool devices such as a front lifting tool device on the floor cleaning machine 10 are to be used, the suction mouth device 82 has no influence on the design of such a tool device, since the suction mouth device 82 does not remain on the vehicle when the sweeping tool device 60 is removed.

A fixing device 110 is provided for mounting the sweeping tool device 60 (the sweeping-suction module) on the chassis 12. The fixing device 100 comprises a first fixing device 112, which is arranged on the sweeping tool device 60 and there on the carrier device 62. It further comprises a second fixing device 114, which is arranged on the chassis 12. The first fixing device 112 and the second fixing device 114 are adapted to one another in order to enable the sweeping tool device 60 to be fixed to the floor cleaning machine 10 in a simple manner, this fixing also being able to be released in a simple manner.

The first fixing device 112 of the sweeping tool device 60 comprises components which are arranged on the carrier device 62.

The first fixing device 112 has a first contact area 116 which is arranged on the carrier device 62 and in this case on the cross member 64. This first contact area 116 provides a contact surface 118. This is used for contacting a third contact area 120 of the second fixing device 114, as will be explained in more detail below (see for example Figure 10 ).

In one embodiment, the first contact area 116 is formed by spaced partial areas 118a, 118b, one partial area 118a, 118b each being associated with a longitudinal beam 122a, 122b of the chassis 12. The partial areas 118a, 118b are in Figure 8 indicated, but they are hidden there by other elements.

In one exemplary embodiment, the respective contact surface 118 (with the partial surfaces 118a, 118b) are designed as inclined surfaces to the longitudinal axis 26 of the chassis 12.

A second contact area 124 of the first fixing device 112 is formed on the cross member 64 opposite the first contact area 116.

This second contact area 124 is used to contact a fourth contact area 126 of the second fixing device 114.

The longitudinal beams 98a, 98b of the carrier device 62 form strips in the manner of "swords". They have an end recess 128. This recess 128 is associated with an insertion recess that widens toward an end 130.

The recess 128 serves as a receptacle for a respective pin 132 of the second fixing device 114.

Such a pin 132 is arranged on the longitudinal beams 122a, 122b of the chassis 12. The corresponding pin 132 is in particular mushroom-shaped (compare Figure 8 ). It has a first area which can be brought into the recess 128 in an insertion direction. The first area is followed by a second area with a larger diameter, which, when the pin 132 is located in the recess 128, blocks transverse mobility.

In one exemplary embodiment, the pins 132 on the longitudinal members 122a, 122b are arranged facing one another, that is to say inwardly projecting on the longitudinal members 122a or 122b.

In principle, it is also possible for a pin 132 to be arranged on a longitudinal beam 122a, 122b and projecting outwards.

The pins 132 are positioned on the longitudinal beams 122a, 122b such that when the first contact area 116 is in contact with a third contact area 120 and the second contact area 124 is in contact with the fourth contact area 126, the pins 132 are positioned in the respective recesses 128.

In one embodiment, the pins 132 are positioned on the longitudinal beams 122a, 122b in an area 134 on which the left front wheel 34 and right front wheel 36 are seated.

The chassis 12 includes the spaced-apart longitudinal members 122a, 122b. In the area of the front end 24, these are connected to one another by a cross member 136.

A boom 138 is seated on the longitudinal members 122a, 122b and / or the cross member 136 (compare, for example Figure 7 or 10th ). This boom 138 is positioned such that when the longitudinal beams 98a, 98b of the sweeping tool device 60 (that is to say the first fixing device 112) are seated on the chassis 12, they are above the carrier device 62 in relation to the direction of gravity g (compare, for example Figures 8 and 11 ).

The third contact area 120 is formed on the arm 138. It is formed, for example, by a bar 140. This bar 140 has a contact surface 142 which is oriented obliquely, in particular with respect to the longitudinal direction 28 of the chassis 12.

The fourth contact area 126 is arranged, for example, on the cross member 136 and lies opposite the third contact area 120 and assigns it to it.

The first contact area 116 and the second contact area 124 are mutually rejecting.

An immersion space 142 is formed between the third contact area 120 and the fourth contact area 126, into each of which the first longitudinal beam 98a and the second longitudinal beam 98b can be immersed, in order to allow the first contact area 116 to contact the third contact area 120 and the second contact area 124 to enable the fourth investment area 126.

The fourth contact area 126 forms a support with respect to the direction of gravity g downwards.

During an assembly process of the sweeping tool device 60, it brings about a downward support and thus an easier assembly even before the third contact area 120 is finally in contact with the first contact area 116. The carrier device 62 can be pushed over its fourth contact area 126 to its final position, in which the pin 132 is seated in the recess 128.

Tolerances can be compensated for by the oblique orientation of the third contact area 120 and by an optionally oblique orientation of the first contact area 116.

The fixing device 110 also has a tensioning device 144, which serves for releasably bracing the carrier device 62 of the sweeping tool device 60 with the chassis 12. It is spaced apart from the third contact area 120 and the fourth contact area 126.

In one embodiment, the tensioning device 144 comprises a rotatable member 146, which is arranged on the arm 138. An axis of rotation 148 is oriented perpendicular to the longitudinal direction 28 of the chassis 12, based on the mounting position of the sweeping tool device 60 on the chassis 12. This axis of rotation 148 is parallel to the axes of rotation of the front wheel device 32 or rear wheel device 38.

At least one engagement element 150 sits on the rotatable member 146 in a rotationally fixed manner, spaced apart from the third contact area 120 and the fourth contact area 126.

In one embodiment, two spaced engagement elements 150 are provided.

An engagement element is in particular disc-shaped with a recess 152. The recess 152 is eccentric to the axis of rotation 148 and is in particular spaced apart therefrom.

Counter elements 154 for the engagement elements 150 are arranged on the carrier device 62. These are positioned such that, when the sweeping tool device 60 is correctly pre-positioned relative to the chassis 12 (with the second contact area 124 resting on the fourth contact area 126 and the pins 132 positioned in the recesses 128), the engaging element 150 can engage the counter element 154 by the counter element 154 being able to dip into the recess 152.

The respective counter element 154 is in particular designed as a pin element which is arranged on the carrier device 62.

The boom 138 overlaps the support device 62 with the rotatable member 146 in this area. An engagement element 150 can then act on the counter element 154 from above in relation to the direction of gravity g.

By rotating the rotatable member 154 when the corresponding counter-elements 154 lie in the recesses 152, tension can be achieved.

The tensioning device 154 is designed as an eccentric device. During a tensioning process by rotating the rotatable member 146, the carrier device 62 also translates to the chassis 12, in order to achieve jamming of the first fixing device 112 with the second fixing device 114 on the contact areas 116, 120, 124, 126 in addition to the bracing on the clamping device 154.

A recess 152 (cf. Figure 7 ) is designed in such a way that an eccentric function is achieved with tensioning with a translation movement in a first direction for jamming, and with a tension release an eccentric function with an ejector function with opposite translation movement is achieved in a second direction (which is opposite to the first direction) .

For this purpose, the recess 152 has a first flank 153a and an opposite second flank 153b. There is a free space in the recess 152 between the first flank 153a and the second flank 153b.

The second flank 153b is, for example, convexly curved.

The first flank 153a is, for example, concavely curved.

A distance between the first flank 153a and the second flank 153b is greatest at the open end face of the recess 152 and decreases in a funnel shape towards the inside to a transverse arrangement between the first flank 153a and the second flank 153b.

The first flank 153a is designed such that when it is rotated toward the bracing (towards the bottom 22 and in the illustration according to FIG Figure 7 counterclockwise) it acts on a corresponding counter element 154 and causes a displacement of the carrier device 62 in the direction of the rear end of the chassis 12.

The second flank 153b is designed such that when the tensioned position is released, it acts on the corresponding counter element 154 and moves the carrier device 62 in the direction away from the rear end 26 of the chassis. It an ejector function is thereby implemented with the solution of jamming at the system areas 116, 120, 124, 126.

A corresponding clamping position can be released by rotating the rotatable member 146; the rotation takes place according to the arrangement Figure 7 away from floor 22 and clockwise.

In one embodiment, an actuating element 156 is arranged on the rotatable member 146 like a rod. A rotation for a bracing or for releasing a bracing can be carried out from the outside via the actuating element 156.

In principle, it is also possible for a motor such as an electric motor to be provided as the actuating element 156.

The actuating element 156 is correspondingly articulated to the rotatable member 146 in order to enable a corresponding rotation for producing a clamping position or for releasing a clamping position with simple accessibility.

The procedure for producing the fixation between the sweeping tool device 60 and the chassis 12, that is to say for assembling the sweeping tool device 60 on the chassis 12, is as follows:
The carrier device 62 of the sweeping tool device 60 is positioned on the chassis 12. In particular, the first side member 98a and the second side member 98b are placed on the fourth contact area 126. The corresponding unit is then moved in the longitudinal direction 28 of the chassis 12 until the respective pins 132 of the second fixing device 114 are immersed in the associated recesses 128 at the front ends 130 of the longitudinal members 98a, 98b.

Pre-positioning with respect to the contact areas 116, 120, 124, 126 is then also achieved.

The fourth contact area 126 provides a support surface for the downward support during this process.

The tensioning device 144 is accordingly positioned in relation to the pins 132, which can then be engaged by the rotation of the rotatable member 146 about the axis of rotation 148, so that the engagement elements 150 can engage the associated counter-elements 154. This creates a tension.

The eccentric design can also result in a shift in which, in particular, the first contact area 116 is pressed against the third contact area 120.

A jamming between the support device 62 and the chassis with respect to the second fixing device 114 is achieved at the contact areas 112, 116, 120, 126.

The inclined surfaces mentioned allow tolerance compensation.

This clamping position is secured by the clamping device 144, which can be actuated from the outside via the actuating element 156.

This clamping position can in turn be released by turning the tensioning device 144 in the opposite direction.

As a result, the second flanks 153b act on the counter-elements 154 and an ejector function is implemented in which the sweeping tool device 60 is shifted somewhat forward.

The sweeping tool device 60 can then be pushed out accordingly.

The fixing device 110 basically comprises three components, on the one hand the contact component with the contact areas 116, 124, 130, 126. The contact takes place spatially in the area of the cross member 64 of the sweeping tool device 60.

A jam can be carried out there.

In addition, in particular the fourth contact area 126 can facilitate the establishment of a fixing position (clamping position), since a downward support is made possible.

The fixing device 110 comprises the tensioning device 144 as a second component. A tensioning can be achieved via it. A counter element 154 of the first fixing device 112 is gripped by the rotatable member 146 of the second fixing device 114 in order to bring about tension.

In one exemplary embodiment, the fixing device 110 comprises, as a third component, the "swords" 98a, 98b with their recesses 128, in which the pins 132 of the second fixing device 114 can be positioned. Torque support for the sweeping tool device 60 on the chassis 12 can thereby be achieved.

In the case of embodiments of tool devices it can be provided that such torque support is not necessary due to the acting forces.

The sweeping tool device 60 can be detached or assembled in a simple and quick manner by the fixing device 110.

An interface is provided on the chassis 12 and also on the corresponding sweeping tool device 60, which enables one To fix a variety of different tool devices on the floor cleaning machine 10.

In a variant of an exemplary embodiment ( Figure 12 ) a sweeping tool device 60 'is provided, which is fundamentally of the same design as the sweeping tool device 60 with the difference that a rotatable member 158 with engaging elements 160 is arranged on the sweeping tool device 60'. Corresponding counter elements 162 are arranged on a chassis 12 '.

The mode of operation is basically the same as described above. The corresponding clamping device 164 differs from the clamping device 144 in that the rotatable member 158 is now arranged on the sweeping tool device 60 'and the counter elements 162 are seated on the chassis 12'.

Otherwise the mode of operation is the same as described above.

In Figures 4 to 6 is the floor cleaning machine according to Figure 1 shown with another tillage tool device 166 and shown with a front power lift 168. Such a front power lifting device 168 is used, for example, to hold a snow blade.

The front linkage 168 is also shown in FIGS Figures 13 to 17 shown.

The front power lifting device 168 can be detachably mounted on the chassis 12 via a fixing device corresponding to the fixing device 110.

This fixing device has a second fixing device which is arranged on the chassis 12. This is the second fixing device 114 as described above. This is used to fix the other tillage tool device 166 (such as the front linkage device 168) to the chassis 12.

The soil cultivation tool device 166 also has a first fixing device 112 ′, which is basically the same as the first fixing device 112 with regard to its component interacting with the second fixing device.

The front linkage 168 includes spaced side members 170a, 170b. These longitudinal beams 170a, 170b form strips or "swords" with a recess 128 'at their front end 130'. The respective pin 132 of the chassis 12 can be brought into this.

A first contact area 116 'and an opposing second contact area 124' are formed on the longitudinal beams 170a, 170b and are used for cooperation with the third contact area 120 and the fourth contact area 126 of the chassis 12.

The longitudinal beams 170a, 170b are connected to one another by one or more cross beams 172.

Counter elements 154 'are arranged on the longitudinal beams 170a, 170b, on which the engagement elements 150 of the rotatable member 156 can engage.

The front power lifting device 168 has a lifting device 174, which comprises a fixing device 176. In particular, a snow blade can be mounted on the fixing device 176.

The lifting device 174 is articulated to the longitudinal beams 170a, 170b. The articulation is such that the height of the lifting device 174 can be changed relative to the longitudinal beams 170a, 170b via a corresponding adjustment mechanism 178. When the front power lifting device 168 is mounted on the chassis 12, the height position of the fixing device 176 and thereby one of the fixing devices 176 is thereby fixed Tool such as a snow blade adjustable and in particular adjustable relative to the chassis 12.

Basically, the front power lifting device 168 is fixed via the corresponding fixing device in the same way as described above using the sweeping tool device 60.

The contact areas 116 ′, 124 ′ of the front power lifting device 168 serve to contact corresponding contact areas 120, 126 of the chassis 12.

By means of the rotatable member 146, bracing with the counter elements 154 'can be achieved.

Torque support can be achieved via the longitudinal beams 170a, 170b, the pins 132 being immersed in the recess 128 '.

The corresponding interface (the fixing device 110) has a part which is arranged on the chassis 12, namely the second fixing device 114.

The corresponding further part, namely the first fixing device 112, 112 ', is arranged and formed on the tillage tool device 168.

Different tillage tools can therefore be easily mounted on the chassis 12 and an assembly position can be released in a simple manner.

Basically, a quick change of the corresponding tillage tool device 166 is made possible.

In particular, in connection with a sweeping-suction module 60, the disassembly of such a soil cultivation tool device 60 achieve a simultaneous disassembly of a complete suction mouth device 82.

In principle, the clamping device 144 of the fixing device 110 can be operated without tools, so that simple operation is possible.

However, it is also possible that a tool actuation is provided or that, for example, speed clamping elements are provided. Hydraulic, pneumatic, electrical (electromotive) actuation can also be provided.

Reference list

10th

Floor cleaning machine

12th

chassis

12 '

chassis

14

First part

16

Part two

18th

Articulated joint

20th

Swivel axis

22

ground

24th

Front end

26

Rear end

28

Longitudinal direction

30th

Forward direction

32

Front wheel device

34

Left front wheel

36

Right front wheel

38

Rear wheel device

40

Left rear wheel

42

Right rear wheel

44

Driver's seat

46

Driver's cabin

48

casing

50

construction

52

Dirt container

54

Suction device

56

Suction unit

58

Suction line

60

Sweeper device

60 '

Sweeper device

62

Carrier device

64

Cross member

66a

First tool holder

66b

Second tool holder

68

Holding device

70

Drive motor

72

Sweeper

74

Axis of rotation

76

Brush plate

78

to brush

80

Swivel joint

81

Adjustment device

82

Suction mouth device

84

Suction opening

86

box

88

Pipe element

90

First connection

92

Second connection

94

Fluid space

96

holder

98a

First side member

98b

Second side member

100

Swivel joint

102

Swivel axis

104

Adjustment device

106

Wheel device

107

Boundary wall

108

bottom

110

Fixation device

112

First fixation device

112 '

First fixation device

114

Second fixation device

116

First investment area

116 '

First investment area

118

Contact surface

118a

Partial area

118b

Partial area

120

Third investment area

122a

Side member

122b

Side member

124

Second investment area

124 '

Second investment area

126

Fourth investment area

128

Recess

128 '

Recess

130

End face

130 '

End face

132

pen

134

Area

136

Cross member

138

boom

140

strip

142

Immersion room

144

Clamping device

146

Rotatable link

148

Axis of rotation

150

Engaging element

152

Recess

153a

First edge

153b

Second flank

154

Counter element

154 '

Counter element

156

Actuator

158

Rotatable link

160

Engaging element

162

Counter element

164

Clamping device

166

Soil cultivation tool facility

168

Front linkage

170a

Side member

170b

Side member

172

Cross member

174

Lifting device

176

Fixation device

178

Adjustment mechanism

Claims (14)

1. Unit formed by a sweeping tool apparatus (60; 60') and a suction mouth device (82) for a sweeping machine, wherein the suction mouth device sits on the sweeping tool apparatus, so that the unit is fixable as a whole on a chassis of the sweeping machine and is releasable as a whole from the chassis, wherein the sweeping tool apparatus has at least one sweeping tool (72), characterized in that the suction mouth device is held on the sweeping tool apparatus by way of a pivot joint (100).
2. Sweeping machine, comprising a chassis (12; 12'), a sweeping tool apparatus (60; 60'), which has at least one sweeping tool (72) and which is releasably mountable or mounted on the chassis (12; 12'), and a suction device (54) for vacuuming off dirt from a ground (22) to be cleaned, said suction device (54) having a suction assembly (56) for generating a suction flow and having a suction mouth device (82) with at least one suction opening (84) for acting upon the ground (22) to be cleaned with the suction flow, wherein the suction mouth device (82) sits on the sweeping tool apparatus (60; 60') and forms a unit with the same, said unit being fixable as a whole on the chassis (12; 12') and being releasable as a whole from the chassis (12; 12'), characterized in that the suction mouth device (82) is held on the sweeping tool apparatus (60; 60') by way of a pivot joint (100).
3. Sweeping machine in accordance with Claim 2, characterized in that the sweeping tool apparatus (60; 60') has a support device (62) on which the at least one sweeping tool (72) is hold, on which the suction mouth device (82) is held, and on which a first fixing device (112) is arranged for releasably fixing the support device (62) on the chassis (12; 12'), and in particular in that the support device (62) of the sweeping tool apparatus (60; 60') comprises a transverse support (64) on which the at least one sweeping tool (72) is held, and comprises at least one longitudinal support (98a, 98b), wherein the suction mouth device (82) is held on the transverse support (64) and/or on the at least one longitudinal support (98a, 98b).
4. Sweeping machine in accordance with either of Claims 2 or 3, characterized in that a first port (90) is arranged on the suction mouth device (82) and the suction device (54) has a second port (92) which is connectible to the first port (90), wherein, when the sweeping tool apparatus (60; 60') is mounted on the chassis (12; 12'), the first port (90) is connected to the second port (92), and in particular characterized by a plug-in coupling for fluidically connecting the first port (90) to the second port (92).
5. Sweeping machine in accordance with any one of Claims 2 to 4, characterized in that the suction mouth device (82) has a wheel device (106) for a driveability on the ground (22) to be cleaned.
6. Sweeping machine in accordance with any one of Claims 2 to 5, characterized in that the suction mouth device (82) is arranged with the at least one suction opening (84) in relation to the at least one sweeping tool (72) such that, during a sweeping operation, sweepings are fed to the at least one suction opening (84).
7. Sweeping machine in accordance with any one of Claims 2 to 6, characterized in that when the sweeping machine is standing on the ground (22) to be cleaned and the sweeping tool apparatus (60; 60') is mounted on the chassis (12; 12'), the suction mouth device (82), in relation to the direction of gravity (g), is positioned beneath the chassis (12; 12') and in particular between wheels (34, 36) of the sweeping machine and/or is positioned beneath a driver's seat (44) of the sweeping machine.
8. Sweeping machine in accordance with any one of Claims 2 to 7, characterized in that when the sweeping tool apparatus (60; 60') is removed from the chassis (12; 12'), the suction mouth device (82) is also removed from the chassis (12; 12').
9. Sweeping machine in accordance with any one of Claims 2 to 8, characterized by a fixing device (110) for releasably mounting the sweeping tool apparatus (60; 60') on the chassis (12; 12'), comprising a first fixing device (112), which is arranged on the sweeping tool apparatus (60; 60'), and a second fixing device (114), which is arranged on the chassis (12; 12'), wherein the first fixing device (112) and the second fixing device (114) are adapted to one another, and in particular in that the first fixing device (112) comprises a first abutment region (116) and a second abutment region (124), the second fixing device (114) comprises a third abutment region (120) for the first abutment region (112) and a fourth abutment region (126) for the second abutment region (124), and in that the fixing device (110) has a clamping device (144; 164) for clamping the sweeping tool apparatus (60; 60') to the chassis (12; 12'), and in particular in that the first abutment region (116) and the second abutment region (124) are opposite to each other and in particular are facing away from each other, and in particular in that the third abutment region (120) and the fourth abutment region (126) are opposite to each other and in particular are facing toward each other, and in particular in that the second fixing device (114) has a dip-in space (142) between the third abutment region (120) and the fourth abutment region (126) into which an element (98a, 98b) of the first fixing device (112) comprising the first abutment region (116) and the second abutment region (124) is able to dip, and in particular in that the first abutment region (116) and/or the second abutment region (124) each have at least two spaced apart partial areas (118a, 118b), and/or the third abutment region (120) and/or the fourth abutment region (124) has at least two spaced apart partial areas, and in particular in that the first abutment region (116) and/or the third abutment region (120) has an inclined abutment face in relation to a longitudinal direction (28) of the chassis (12; 12'), wherein in particular a distance between the third abutment region (120) and the fourth abutment region (126) in the longitudinal direction of the chassis (12; 12') varies and in particular decreases in the direction from a front end (24) to a rear end (26).
10. Sweeping machine in accordance with Claim 9, characterized in that the third abutment region (120) and the fourth abutment region (126) are arranged on a transverse support (64) or on one or more longitudinal supports (122a, 122b) of the chassis (12; 12').
11. Sweeping machine in accordance with either of Claims 9 or 10, characterized in that the clamping device (144; 164) is configured such that an element (98a, 98b) of the first fixing device (112) comprising the first abutment region (116) and the second abutment region (124) is clampable to an element (140, 64) of the second fixing device (114) comprising the third abutment region (120) and the fourth abutment region (126).
12. Sweeping machine in accordance with any one of Claims 9 to 11, characterized in that the clamping device (144; 164) comprises an eccentric cam by means of which, during a clamping operation and/or during a releasing operation of a clamping, a relative translational movement between the sweeping tool apparatus (60; 60') and the chassis (12; 12') is able to be brought about.
13. Sweeping machine in accordance with any one of Claims 9 to 12, characterized in that the clamping device (144; 164) comprises a rotatable member (146; 158) on which one or more engagement elements (150; 160) are arranged, and in that the clamping device (144; 164) comprises one or more counter elements (154) for the engagement element(s) (150; 160), wherein (i) the rotatable member (146) is arranged on the first fixing device (112) and the counter element(s) (154) is/are arranged on the second fixing device (114), or (ii) the rotatable member (158) is arranged on the second fixing device and the counter element(s) is/are arranged on the first fixing device, and in particular in that the at least one engagement element (150; 160) has a recess (152) into which the counter element (154) is able to be brought, wherein in particular the recess is acentric to a rotational axis (148) of the rotatable member (146; 158), and in particular in that the at least one engagement element (150; 160) has a recess (152) with a first flank (153a) and a second flank (153b), wherein a displacement of a counter element (154) in a first direction is able to be brought about by the first flank (153a) acting on the counter element (154) and a displacement of a counter element (154) in a second direction opposite to the first direction is able to be brought about by the second flank (153b) acting on the counter element (154), and in particular in that an actuating element (156) is associated with the rotatable member.
14. Sweeping machine in accordance with any one of Claims 9 to 13, characterized in that the first fixing device (112) has at least one bar (98a, 98b) with a recess (128; 128') open on the face-side, and in that the second fixing device (114) has at least one pin (132) for being accommodated in the recess (128), wherein in particular the pin (132) is able to be brought into the recess (128) by sliding the at least one bar (98a, 98b), and in particular in that the at least one pin (132) is at a distance from the third abutment region (120) and the fourth abutment region (124), and/or in that the at least one recess (128) on the at least one bar (98a, 98b) is at a distance from the first abutment region (116) and the second abutment region (124), and in particular in that the at least one pin (132) is arranged on a longitudinal support (122a, 122b) of the chassis (12; 12') and projects toward an opposite side of the chassis (12; 12') or projects outwardly, and in particular in that, when the sweeping tool apparatus (60; 60') is mounted on the chassis (12; 12'), the at least one bar (98a, 98b) is positioned between longitudinal supports (122a, 122b) of the chassis or the longitudinal supports (122a, 122b) are located between bars (98a, 98b).

Images