DE202016008945U1 - Area cleaning machine - Google Patents

Abstract

Surface cleaning machine, comprising a cleaning head (14) with a driven cleaning roller unit (18) with an axis of rotation (58), the surface cleaning machine being supported on a surface (16) to be cleaned only via the cleaning roller unit (18) in a cleaning operation, a drive motor (28) for the cleaning roller unit (18), and a dirty fluid tank device (66) which is detachably arranged on the cleaning head (14).

Description

The invention relates to a surface cleaning machine, comprising a cleaning head with a driven cleaning roller unit with an axis of rotation.

From the WO 2010/041185 A1 a surface cleaning machine with rotating brushes is known.

From the US 7,665,174 B2 a cleaning head for a floor cleaning machine is known.

From the U.S. 4,173,054 a floor cleaner is known which comprises a handle, a main body, a roller mechanism with a roller with a cleaning belt, a scraper and a dirty fluid receptacle.

From the WO 2013/106762 A2 a surface cleaning machine with a cleaning roller and a drive unit for driving the cleaning roller is known. A dirt bowl is provided into which the cleaning roller sweeps dirt as it rotates. The dirt tray can be opened.

From the US 7,921,497 B2 a floor scrubbing device is known which is manually operated and comprises a drive roller which is coupled to a scrubbing roller.

Surface cleaning machines are known from the applications PCT / EP2015 / 073275, PCT / EP2015 / 072929, PCT / EP2015 / 073529, PCT / EP2015 / 073116, PCT / EP2015 / 073478, which were not previously published. A surface cleaning machine is also known from PCT / EP2015 / 073315, which was not previously published.

The invention is based on the object of providing a surface cleaning machine of the type mentioned at the outset which delivers optimized cleaning results with ease of use.

This object is achieved according to the invention in the surface cleaning machine mentioned at the beginning in that, in a cleaning operation, the surface cleaning machine is supported on a surface to be cleaned only via the cleaning roller unit with the axis of rotation, a drive motor is provided for the cleaning roller unit, and a dirty fluid tank device is provided , which is detachably arranged on the cleaning head.

The fact that the surface cleaning machine is only supported on a surface to be cleaned via the cleaning roller unit results in a relatively simple construction of the surface cleaning machine which can be implemented with a low weight.

The cleaning roller unit is a one-part or multi-part cleaning roller with a single axis of rotation. In the case of a multi-part cleaning roller unit, all sub-units have the same coaxial axis of rotation and in cleaning operation all sub-units are rotated around the same axis of rotation in the same direction of rotation at the same rotational speed and the drive motor drives all sub-units.

Furthermore, cleaning can then also take place in areas that are difficult to access, since the space requirement for the cleaning head can be kept small. The driven cleaning roller unit also acts as a support device; as a result, no further driving elements such as wheels or the like have to be provided.

By means of a removable dirty fluid tank device on the cleaning head, the path for dirty fluid from the cleaning roller unit to the dirty fluid tank device can be kept small, so that simple coupling is possible.

As the dirty fluid tank device can be removed from the cleaning head, it can be emptied and also cleaned in a simple manner. It can hold a large amount of dirty fluid including a liquid. In particular, the dirty fluid tank device can be removed as a whole from the cleaning head or inserted into it as a whole, so that a high degree of filling for the dirty fluid tank device can also be achieved with liquid.

It is even possible to implement a coupling of dirty fluid from the cleaning roller unit to the dirty fluid tank device without a suction fan or a suction fan can be provided for support, which has a relatively low power requirement and therefore a relatively low energy requirement.

The surface cleaning machine can thus be operated in an energy-saving manner. This in turn makes it possible to supply the surface cleaning machine and in particular the drive motor with a preferably rechargeable battery device with electrical current. The surface cleaning machine can thus be operated independently of the mains.

It is advantageous if a longitudinal axis of the dirty fluid tank device is parallel to the (in particular single) axis of rotation of the cleaning roller unit is oriented. The longitudinal axis of the dirty fluid tank device runs between a first end face and a second opposite end face of the dirty fluid tank device. It specifies the longest extension of the dirty fluid tank device. This results in a space-saving arrangement of the dirty fluid tank device on the cleaning head.

It is also favorable if a motor axis of the drive motor is oriented transversely and in particular perpendicular to an axis of longitudinal extent of the dirty fluid tank device. The motor axis of the drive motor corresponds to a rotor axis of the drive motor. The transverse orientation to the longitudinal axis of the dirty fluid tank device results in a space-saving structure.

It is particularly advantageous if the dirty fluid tank device is arranged between the cleaning roller unit and the drive motor. This results in a short coupling path for coupling dirty fluid starting from the cleaning roller unit into the dirty fluid tank device. As a result, in turn, it is sufficient to use a suction fan with a relatively low power for sucking off dirty fluid, or a suction fan-free design is possible.

In one embodiment, a transmission device for torque transmission is provided, which is arranged between the drive motor and the cleaning roller unit, the dirty fluid tank device having an upper side and a lower side, the lower side facing a cleaning roller holder of the cleaning roller unit and the upper side facing away from the lower side, and the Gear device is passed on the bottom or on the top of the dirty fluid tank device. The gear mechanism ensures the transmission of torque from the drive motor to the cleaning roller unit. The cleaning roller unit is positioned at a distance from the drive motor. The transmission device ensures, in particular, a speed reduction, torque deflection and, if necessary, a bridging of distances. By guiding the transmission device past the underside or top side of the dirty fluid tank device, a simple, compact structure results. In principle, it is also possible for the transmission device to be passed through a through opening in the dirty fluid tank device. When the transmission device is guided past the underside or top side, this results in a simplified removal of the dirty fluid tank device from the cleaning head and a simplified design of the dirty fluid tank device.

In one embodiment, the dirty fluid tank device has a recess in which at least a partial area of the gear device is positioned when the dirty fluid tank device is fixed to the cleaning head. The corresponding free space in the recess provides a space in which the transmission device can be positioned. This results in an optimized adaptation of the geometric shape of the dirty fluid tank device to the cleaning head.

In one embodiment, a device body is provided on which the cleaning head is arranged, at least one of the following devices being positioned on the device body: a tank device for cleaning liquid; valve means for supplying cleaning liquid to the cleaning head; a battery device for the drive motor; a holding rod device for holding and / or guiding the surface cleaning machine; a filter device for cleaning liquid; at least partially the drive motor. This results in a compact structure. In particular, elements of the surface cleaning machine which have a relatively high weight, such as the drive motor, can be positioned far below in the vicinity of the cleaning head. A removable tank device for cleaning liquid can also be positioned on the device body, for example. A valve device for supplying cleaning fluid to the cleaning head and also a filter device for the cleaning fluid can be positioned on the device body in a protected manner in the housing. Furthermore, the battery device can be optimally positioned, in particular if the drive motor itself is arranged on the device body. It can also be provided that the drive motor is at least partially positioned in the device body. For example, the device body is used to "anchor" the drive motor to the surface cleaning machine.

It is favorable if the drive motor is arranged at least partially between the device body and the cleaning head, wherein it is in particular arranged at least partially in the device body. In this way, for example, a battery device can be arranged on the device body in an optimized manner. Furthermore, a torque transmission from the drive motor to the cleaning roller unit on the cleaning head can be implemented in a simple manner. The drive motor can be relatively far (based on proper operation with the cleaning roller unit supported on the surface to be cleaned) arrange at the bottom so that it is easy to use. With such an arrangement, pivotability between the cleaning head and the device body can also be implemented in a simple manner.

It is favorable if the cleaning head can be pivoted about a pivot axis relative to the drive motor and / or the device body, the pivot axis being oriented in particular parallel or coaxially to a motor axis of the drive motor. This results in expanded operating options; access to spatially confined areas of the surface to be cleaned is improved, since the device body can be repositioned in a manner adapted to the cleaning head. A corresponding pivot bearing can be formed in a simple manner by, for example, encapsulating the drive motor as an inner sleeve and an outer sleeve arranged on the device body in such a way that a pivot bearing is implemented.

In one embodiment, a cleaning roller holder on which the cleaning roller unit is positioned has a receiving chamber with a receiving space for the dirty fluid tank device. The receiving chamber can be designed with multiple chambers and the receiving space can comprise several sub-spaces. Basically, subspaces can be fluidically connected to one another or be fluidically separated from one another.

In particular, the receiving chamber is assigned a fixing device, by means of which the dirty fluid tank device can be fixed to the receiving chamber, the fixing device for the removability of the dirty fluid tank device being designed to be detachable from the cleaning head, and in particular the fixing device being designed so that the dirty fluid tank device on the receiving chamber is in a form fit Holding position is held. In this way, the dirty fluid tank device can be fixed to the receiving chamber in a simple manner. Furthermore, the dirty fluid tank device can be removed in a simple manner in order to empty it and, if necessary, to clean it. Furthermore, the fixing device can be designed in such a way that the dirty fluid tank device is positioned with an inlet opening in a defined manner relative to the cleaning roller unit. In this way, in particular, a stripping guide device can be positioned in a defined manner relative to the cleaning roller unit.

In a structurally simple exemplary embodiment, the fixing device comprises or is at least one pivotable flap. By means of the pivotable flap, the receiving chamber can be released in a simple manner such that the dirty fluid tank device can be inserted or removed. The flap, when it acts on the dirty fluid tank device, can furthermore secure a holding position of the dirty fluid tank device. Furthermore, the flap can be designed in such a way that it exerts a certain pretension in order to position the dirty fluid tank device in a defined manner on the receiving chamber, in particular to position an inlet opening of the dirty fluid tank device and / or possibly a scraper guide device in a defined manner relative to the cleaning roller unit.

A pivot axis of the at least one flap is favorably aligned at least approximately parallel to an axis of rotation of the cleaning roller unit. This results in a simple structural design. The dirty fluid tank device can be easily removed and reinserted.

It is then favorable if the at least one flap acts on an upper side of the dirty fluid tank device which faces away from an underside, the lower side of the dirty fluid tank device facing a bottom of the receiving chamber when the dirty fluid tank device is fixed to the cleaning head. This allows a holding position of the dirty fluid tank device to be secured on the receiving chamber in a simple manner. A defined positioning can also be achieved.

It is advantageous if the at least one flap is designed as a hold-down device which positions the dirty fluid tank device in a defined manner in relation to the cleaning roller unit and / or positions it in the receiving space and in particular presses the dirty fluid tank device in a holding position against a bottom of the receiving chamber. As a result, the dirty fluid tank device can be removed or reinserted in a simple manner for an operator and automatic positioning can be achieved, so to speak; the operator does not have to worry about the exact positioning.

For example, the at least one flap is spring-loaded and / or designed to be elastic in such a way that the dirty fluid tank device is held in the receiving space with a bias. This bias ensures that the inlet opening of the dirty fluid tank device is in a defined position relative to the cleaning roller unit.

In a structurally simple embodiment, at least one recess is arranged on the upper side of the dirty fluid tank device and the at least one flap has at least one Counter element for dipping into the at least one recess. This makes it possible, in particular, to block the mobility of the dirty fluid tank device on the receiving chamber in a removal direction in a simple manner.

It is then also favorable if the at least one recess has at least one undercut and the at least one counter-element has a blocking element adapted to the at least one undercut, which blocks a mobility of the dirty fluid tank device in a direction away from a bottom of the receiving chamber when the at least one flap is closed . A form fit can thereby be achieved, which ensures that the dirty fluid tank device does not fall out in the holding position. Furthermore, positioning of the dirty fluid tank device relative to the cleaning roller unit can thereby be achieved in a simple manner.

In particular, the receiving chamber and the dirty fluid tank device are designed to be adapted to one another so that in a holding position of the dirty fluid tank device on the receiving chamber, mobility of the dirty fluid tank device transversely to a perpendicular to a bottom of the receiving chamber is blocked. This results in a fixation in a simple manner. The floor then ensures that the mobility is blocked parallel to the vertical of the floor and the flap ensures that the mobility is blocked in the opposite direction.

In one embodiment, the dirty fluid tank device has one or more hinged covers. By opening the hinged lid, the dirty fluid tank device can be emptied and, if necessary, it can be cleaned in a simple manner. The hinged lid in particular forms an upper side of the dirty fluid tank device, on which the at least one flap of the fixing device can act.

In one embodiment, the dirty fluid tank device is designed as a unit. This can include one chamber or several chambers. It can be removed as a whole from the cleaning head or inserted into it. In principle, it is also possible for the dirty fluid tank device to have subunits which are separate from one another and which can be individually removed from the cleaning head or can be used on it.

In one embodiment, the cleaning roller unit is designed in two parts (is a two-part cleaning roller) with a first part and a second part, a first chamber of the dirty fluid tank device being assigned to the first part of the cleaning roller unit and a second chamber of the dirty fluid tank device being assigned to the second part of the cleaning roller unit, and in particular the drive motor acts on a central area which lies between the first part and the second part. The middle area is, for example, the middle area of a wave. This results in a space-saving and structurally simple design for the torque transmission from the drive motor to the cleaning roller unit with the (precisely one) axis of rotation. In particular, the drive motor can thereby be positioned such that its motor axis lies transversely to the axis of rotation of the cleaning roller unit.

It is favorable if a scraper guide device for dirty fluid is provided, which acts on the cleaning roller unit and which is arranged at an inlet opening of the dirty fluid tank device. The stripping guide device allows dirt to be removed from the cleaning roller unit and the removed dirt can in particular be coupled into the dirt fluid tank device via the inlet opening.

In particular, the wiping guide device is arranged and designed in such a way that dirty fluid, which is carried along by the cleaning roller unit, is detached from the cleaning roller unit by being wiped off and is conducted to the inlet opening of the dirty fluid tank device. The coupling of dirty fluid at the inlet opening into the dirty fluid tank device can take place at least partially via an impact effect, also by the action of the centrifugal force. At least some of the dirty fluid can be thrown into the dirty fluid tank device via the scraper guide device at the inlet opening.

It is particularly advantageous if the scraper guide device is designed in such a way that dirty fluid is guided into the dirty fluid tank device through the scraper guide device at the inlet opening of the dirty fluid tank device without a suction fan. The stripping guide device is then in particular arranged directly at the inlet opening of the dirty fluid tank device. In particular, the stripping guide device itself then forms a wall of the inlet mouth. Overall, this results in a structurally simple design of the surface cleaning machine, since no suction fan with fan motor, vacuum lines and the like need to be provided. Furthermore, no separator has to be provided.

It is also advantageous if, with respect to a direction of rotation of the cleaning roller unit, the scraping guide device is arranged downstream of the inlet opening. This allows dirty fluid from the Release the cleaning roller unit using a wiping effect and guide it into the dirty fluid tank device.

It is particularly advantageous if the stripping guide device protrudes into a set of cleaning roller unit. This allows dirty fluid to be removed from the cleaning roller unit via a wiping effect.

It is favorable if the scraper guide device is rounded or chamfered at an edge which protrudes into the trim of the cleaning roller unit and which faces the inlet opening. This results in sparing of the facing fibers. Furthermore, the rotary drive of the cleaning roller unit can be operated in an energy-saving manner.

It is then particularly favorable if the stripping guide device protrudes into the facing with a depth of at least 5% of the thickness of the facing, based on a wet facing.

In principle, it is possible for the wiper guide device to be arranged on a cleaning roller holder. In one embodiment, the wiping guide device is arranged on the dirty fluid tank device and can be removed from the cleaning head with the dirty fluid tank device. When the dirty fluid tank device is positioned at a holding position on the cleaning head, the stripping guide device is then automatically positioned in a defined “correct” manner relative to the cleaning roller unit.

In particular, the stripping guide device is formed by one or more edge elements, that is to say formed by one or more strips, which have corresponding edges, which in particular can protrude into the trim of the cleaning roller unit. An edge element preferably at least partially forms a wall of the inlet mouth.

It is also advantageous if a sweeping element is arranged on the cleaning head, through which the cleaning roller unit can be supplied with coarse dirt to be carried along by the cleaning roller unit.

In particular, an inlet opening of the dirty fluid tank device is positioned between the scraper guide device and the sweeping element. As a result, coarse dirt, which has been fed to the cleaning roller unit via the sweeping element, can be carried along by the cleaning roller unit and scraped off on the stripping guide device.

It is particularly advantageous if a battery device and, in particular, a rechargeable battery device is provided for supplying the drive motor with electrical energy. This means that the surface cleaning machine can be operated independently of the mains. It is easy to use.

It is also advantageous if the drive motor is arranged between the battery device and the cleaning head. This results in an optimized positioning of the battery device.

It is also advantageous if a tank device is provided for cleaning liquid. This allows the surface to be cleaned to be moistened directly or indirectly (by moistening the cleaning roller unit). The cleaning liquid is, in particular, water to which a chemical cleaning agent can be mixed. The cleaning fluid can be used to moisten dirt on the surface to be cleaned in order to obtain improved solubility.

In a structurally simple embodiment, the tank device for cleaning liquid is positioned above the cleaning roller unit in relation to the direction of gravity when the surface cleaning machine is operated in a proper cleaning mode with the cleaning roller unit placed on the surface to be cleaned. A supply of cleaning liquid to the cleaning head and in particular to the cleaning roller unit then takes place solely under the action of gravity. There is no need to provide an additional pump for pumping cleaning fluid.

It is favorable if an inlet opening of the dirty fluid tank device has a longitudinal direction which is oriented parallel to an axis of rotation of the cleaning roller unit. This allows dirty fluid to be coupled into the dirty fluid tank device over a large length range.

The surface cleaning machine is designed in particular as a hand-operated or hand-operated surface cleaning machine. As a result of the support via the cleaning roller unit on the surface to be cleaned, an operator can hold the surface cleaning machine at an end facing away from the cleaning head (so that it cannot tip over) and guide it on the surface to be cleaned.

• 1 eine perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Flächen-Reinigungsmaschine;
• 2 eine weitere perspektivische Darstellung eines Reinigungskopfs der Flächen-Reinigungsmaschine gemäß 1, wobei ein Anschluss an einen Gerätekörper angedeutet ist;
• 3 eine Seitenansicht des Reinigungskopfs gemäß 2 mit abgenommener Schmutzfluidtankeinrichtung;
• 4 eine Teilschnittansicht in der Ebene E gemäß 1;
• 5 eine vergrößerte Darstellung des Bereichs A gemäß 4 mit fixierter Schmutzfluidtankeinrichtung;
• 6 die gleiche Ansicht wie 5, wobei eine Fixierungseinrichtung in einer solchen Stellung ist, dass die Schmutzfluidtankeinrichtung entnehmbar ist;
• 7 die gleiche Ansicht wie 5 in einer Zwischenstellung;
• 8 eine perspektivische Ansicht eines Ausführungsbeispiels einer Schmutzfluidtankeinrichtung;
• 9 eine Ansicht der Schmutzfluidtankeinrichtung gemäß 8 in der Richtung B; und
• 10 eine Seitenansicht der Schmutzfluidtankeinrichtung gemäß 8 in der Richtung C.

The following description of preferred embodiments is used in conjunction with the drawings to explain the invention in greater detail. Show it:

• 1 a perspective view of an embodiment of a surface cleaning machine according to the invention;
• 2 a further perspective illustration of a cleaning head of the surface cleaning machine according to FIG 1 , wherein a connection to a device body is indicated;
• 3 a side view of the cleaning head according to 2 with the dirty fluid tank device removed;
• 4th a partial sectional view in the plane E according to 1 ;
• 5 an enlarged illustration of the area A according to 4th with fixed dirty fluid tank device;
• 6th the same view as 5 wherein a fixation device is in such a position that the dirty fluid tank device is removable;
• 7th the same view as 5 in an intermediate position;
• 8th a perspective view of an embodiment of a dirty fluid tank device;
• 9 a view of the dirty fluid tank device according to 8th in the direction B; and
• 10 a side view of the dirty fluid tank device according to FIG 8th in the direction of C.

An embodiment of a surface cleaning machine according to the invention, which is shown in 1 is shown and in the 2 to 10 is shown in partial representation and is denoted by 10, is particularly designed as a hand-held and hand-guided floor cleaning machine for hard floors.

The surface cleaning machine 10 includes a device body 12 and a cleaning head 14th . The cleaning head 14th is on the device body 12 arranged.

When cleaning a surface to be cleaned 16 the surface cleaning machine is supported 10 via a cleaning roller unit 18th and in particular a single cleaning roller unit 18th on the surface to be cleaned 16 from. The cleaning roller unit 18th has a single axis of rotation (see below). The cleaning roller unit 18th is a cleaning roller that can be made up of one or more parts. In the embodiment described below, the cleaning roller unit is 18th a two-part cleaning roller.

The device body 12 has a longitudinal axis 20th on. The surface cleaning machine 10 is stem-held or stem-guided. This sits on the device body 12 a holding rod device 22nd .

In one embodiment, the support rod comprises means 22nd one (in particular exactly one) holding rod 24 , which has a longitudinal extension parallel to the longitudinal axis 20th having. On an upper portion of the support rod device 22nd is a handle 26th and in particular a bow handle is arranged. An operator can handle this 26th the surface cleaning machine with one hand 10 hold and on the surface to be cleaned 16 (with supported cleaning roller unit 18th ) to lead.

The holding rod device 22nd can with respect to a length in the longitudinal axis 20th be designed to be variable in length or fixed in length.

The surface cleaning machine 10 is designed in its dimensions so that on the surface to be cleaned 16 supported cleaning roller unit 18th an operator performs a cleaning process on the surface to be cleaned 16 can comfortably carry out with an angled holding arm. In particular, there is a length of the surface cleaning machine 10 in the longitudinal axis 20th between the cleaning roller unit 18th and the bow handle 26th in a range between 60 cm and 130 cm.

On the handle 26th in particular, one or more operating elements are arranged. For example, a switch is arranged via which the surface cleaning machine 10 can be switched on or off for a cleaning operation. This switch is used to operate a drive motor 28 for rotating the cleaning roller unit 18th switchable. Furthermore, a switch for actuating a valve device 38 (see below).

The device body 12 includes a housing 30th in which components of the surface cleaning machine 10 are arranged protected.

On the case 30th is a holder 32 arranged. On the holder 32 is a tank facility 34 for cleaning liquid (especially water with or without an additional cleaning agent) arranged removably.

On the case 30th is on the holder 32 a tank intake 36 for the tank facility 34 arranged. A corresponding outlet of the tank device 34 is with the tank mount 36 connectable.

In the case 30th is the tank mount 36 downstream a valve device 38 positioned.

From the valve device 38 lead one or more fluid lines 40 to the cleaning head 14th .

The valve device 38 has a shut-off valve, via which the supply of cleaning liquid from the tank device 34 to the cleaning head 14th is switchable lockable. The valve device 38 can be a filter device 39 be assigned for cleaning fluid. The filter device 39 is in particular connected upstream of the shut-off valve and between the valve device 38 and the tank mount 36 arranged.

When the shut-off valve is open, cleaning fluid can flow out of the tank device 34 through the fluid line or lines 40 to the cleaning head 14th flow and the surface to be cleaned 16 apply.

On the cleaning head 14th one or more outlet openings for cleaning fluid are provided for this purpose. In principle, it is possible that the outlet opening or outlet openings are arranged in such a way that the surface to be cleaned 16 is directly applied with cleaning fluid.

In an advantageous variant, the outlet opening or outlet openings are arranged so that the cleaning roller unit 18th and especially a trim 42 the cleaning roller unit 18th is applied with cleaning fluid. When the cleaning roller unit is acted upon 18th The surface to be cleaned then becomes over cleaning fluid 16 indirectly acted upon with cleaning fluid.

The trimming 42 is made in particular from a textile material.

The valve device 38 a switch is assigned through which the user can set whether the shut-off valve of the valve device 38 is blocked (i.e. the flow of cleaning liquid to the cleaning head 14th is blocked), or whether the shut-off valve is open (that is, the inlet for cleaning liquid from the tank device 34 to the cleaning head 14th released).

This switch can be on the housing 30th be arranged. In principle, it is also possible that the switch is on the handle 26th is arranged.

In one embodiment is in the housing 30th a battery device 44 for the electrical energy supply of the drive motor 28 arranged. The battery device 44 is rechargeable. This allows the surface cleaning machine 10 operate independently of a mains supply.

In principle, however, it is also possible that the surface cleaning machine 10 is powered by mains electricity. It is then a corresponding connection device for mains power on the surface cleaning machine 10 arranged.

The battery device 44 can be removed from the device body 12 in order to be able to carry out a recharge on a corresponding charger.

It can also be provided that in the device body 12 a corresponding charging device is integrated and recharging without removing the battery device 44 from the device body 12 is feasible. Corresponding connection sockets are, for example, on the holding rod 24 arranged.

The drive motor 28 is an electric motor. He has a motor axis 46 on. The motor axis 46 is coaxial with an axis of rotation of the drive motor 28 .

The drive motor 28 sits between the cleaning head 14th and the case 30th on the device body 12 .

In one embodiment, the motor axis is 46 at an angle to the longitudinal axis 20th of the device body 12 (and the holding rod 24 ) oriented. The angle between the motor axis 46 and the longitudinal axis 20th is for example in the range between 150 ° and 170 °.

In one embodiment, the cleaning head is 14th around a pivot axis 48 (see the 2 and 3 ) regarding the device body 12 pivotable. This pivotability is in 2 by the double arrow with the reference number 50 indicated.

In particular, the pivot axis 48 coaxial with the motor axis 46 .

In one embodiment, the drive motor is 28 on an inner sleeve 52 arranged. This inner sleeve 52 preferably forms an encapsulation of the drive motor 28 .

On the device body 12 an outer sleeve is firmly seated 54 . The inner sleeve 52 sits in the outer sleeve 54 . The inner sleeve 52 is around the pivot axis 48 relative to the outer sleeve 54 pivotable, the inner sleeve 52 in the outer sleeve 54 is pivoted. The inner sleeve 52 and the outer sleeve 54 form a pivot bearing 56 for the swiveling of the cleaning head 14th relative to the device body 12 . The drive motor 28 is around the pivot axis 48 relative to that Device body 12 pivotable. Appropriate leads from the battery device 44 to the drive motor 28 are arranged and designed so that they allow pivoting. The fluid lines are accordingly 40 or the fluid lines 40 designed so that they allow this pivotability.

The swivel bearing 56 has a basic position which is defined, for example, by the fact that (the only one) has an axis of rotation 58 the cleaning roller unit 18th perpendicular to the plane E according to 1 is oriented. A pivoting around the pivot axis 58 compared to this basic position is expressed in an angular position of the axis of rotation 58 to level E.

The swivel bearing 56 is set, in particular, in such a way that, in relation to a normal cleaning operation, a special expenditure of force is necessary in order to pivot the cleaning head 14th to effect from his basic position.

The swiveling of the cleaning head 14th around the pivot axis 48 enables improved cleaning options, even in hard-to-reach places, by effectively removing the device body 12 with the holding rod device 22nd towards the surface to be cleaned 16 Can be "repositioned".

The cleaning head 14th has a cleaning roller holder 60 on which the cleaning roller unit 18th around the axis of rotation 58 rotatable. The cleaning roller holder 60 is non-rotatable with the inner sleeve 52 connected.

The cleaning roller holder 60 has a holding area 62 for the cleaning roller unit 18th on, and a receiving chamber 64 for a dirty fluid tank facility 66 (see for example 3 ).

The receiving chamber 64 is between the holding area 62 and the inner sleeve 52 positioned. The inner sleeve 52 is in particular with an outside of the receiving chamber 64 firmly connected.

The cleaning roller unit 18th is via a gear mechanism 68 torque effective to the drive motor 28 coupled.

The transmission device 68 connects a motor shaft of the drive motor with effective torque 28 (which around the motor axis 46 rotates) with a shaft 70 for the cleaning roller unit 18th .

The transmission device 68 includes a speed reducer in one embodiment. This serves to reduce a speed compared to the speed of the motor shaft. For example, a standard electric motor has speeds on the order of 7000 revolutions per minute. The speed reducer ensures that the speed is reduced to around 400 revolutions per minute, for example.

The speed reducer can be in the inner sleeve 52 or outside of the inner sleeve 52 on the cleaning roller holder 60 be arranged.

The speed reducer is designed as a planetary gear, for example.

The transmission device 68 furthermore has an angular gear which ensures a torque deflection in order to drive the cleaning roller unit 18th with the axis of rotation 58 across (and especially perpendicular) to the motor axis 46 to effect. The angular gear is in particular connected downstream of the speed reducer.

In one embodiment, the angular gear has one or more gearwheels which are non-rotatably coupled to a corresponding shaft of the speed reducer. These act on a bevel gear for angular conversion.

The transmission device 68 in one embodiment further comprises a belt which is torque-effectively coupled to the angular gear and to the shaft 70 works. The belt bridges the gap between the shaft 70 and the bevel gear and provides a speed reduction.

In one embodiment, the cleaning roller unit is 18th formed in two parts with a first part 72 and a second part 74 . The first part 72 is non-rotatably seated on a first side of the shaft 70 and the second part 74 non-rotatably seated on one of the first side of the shaft 70 opposite second side.

In an intermediate area 76 between the first part 72 and the second part 74 is the gear mechanism 68 led and to the shaft 70 coupled. They have the same axis of rotation 58 on.

The cleaning roller unit 18th or the first part 72 and the second part 74 the cleaning roller unit 18th have a sleeve 78 on (see for example 5 ), which is cylindrical. On the sleeve 78 is the trimming 42 arranged. About the sleeve 78 is the cleaning roller unit 18th or the first part 72 and the second part 74 on the shaft 70 fixed.

The cleaning roller unit 18th is like that on the cleaning head 14th arranged that the Axis of rotation 58 perpendicular to the longitudinal axis 20th is oriented.

The cleaning roller unit 18th has a length along the axis of rotation 58 between a first end face 80 (which on the first part 72 is formed) and a second end face 82 (which on the second part 74 is formed), which is considerably larger than a corresponding width of the device body 12 perpendicular to the longitudinal axis 20th . In particular, there is a length of the cleaning roller unit 18th between the first face 80 and the second face 82 at least 20 cm and preferably at least 25 cm.

The receiving chamber 64 has a bottom 84 (see for example 5 ) on. On the floor 84 a receiving chamber wall is oriented transversely to this 86 arranged. The receiving chamber wall 86 and the floor 84 the receiving chamber 64 define a recording space 88 for the dirty fluid tank facility 66 .

The floor 84 opposite is the recording room 88 open. Via a corresponding page 90 is the dirty fluid tank facility 66 from the recording room 88 removable or insertable in these. A direction of removal or insertion 92 (see. 6th ) is essentially perpendicular to the ground 84 (and perpendicular to the axis of rotation 58 ).

In one embodiment, the receiving chamber wall 86 on a wall area 94 the receiving chamber wall 86 a step 96 on. The wall area 94 is the holding area 62 facing.

The stage 96 is also close to the ground 84 arranged.

The receiving chamber 64 is a fixation device 98 assigned via which the dirty fluid tank device 66 on the receiving chamber wall 86 in a holding position 100 ( 5 ) is fixable. The fixation takes place in particular by a form fit.

In one embodiment, the fixing device comprises 98 a flap 102 , which around a pivot axis 104 by means of a pivot bearing 106 pivotable on the cleaning head 14th is arranged. The swivel bearing 106 is on or near the inner sleeve 52 positioned.

The pivot axis 104 is parallel to the axis of rotation 58 the rotating roller 18th oriented.

In the holding position 100 works the flap 102 on the dirty fluid tank device 66 and holds it to the receiving chamber 64 in the recording room 88 .

For removing the dirty fluid tank device 66 from the cleaning head 14th is based on this holding position 100 the flap 102 towards the device body 12 swiveling (see in 6th , indicated by the reference number 108 ) to the dirty fluid tank assembly 66 so that this is in the direction of removal 92 on the side 90 from the recording room 88 is removable and from the cleaning head 14th is removable.

The dirty fluid tank facility 66 ( 8th to 10 ) is designed as a unit. It has a first chamber 110 on which the first part 72 the cleaning roller unit 18th is assigned, and has a second chamber 112 on which the second part 74 the cleaning roller unit 18th assigned.

The first chamber 110 picks up dirty fluid from the first part 72 the cleaning roller unit 18th originates, and the second chamber 112 picks up dirty fluid from the second part 74 the cleaning roller unit 18th comes.

It is basically possible that the first chamber 110 and the second chamber 112 are fluidly connected to each other, and are for example fluidly connected to a common drainage opening.

It can also be provided that the first chamber 110 and the second chamber 112 are fluid-tight separated from each other and each chamber 110 , 112 has its own outlet opening.

The first chamber 110 and the second chamber 112 are spaced; between the first chamber 110 and the second chamber 112 has the dirty fluid tank device 66 a recess 114 on. The recess 114 is based on a longitudinal axis 116 the dirty fluid tank device 66 in a central area of the dirty fluid tank device 66 arranged.

When the dirty fluid tank device 66 in the holding position 100 on the cleaning head 14th is fixed, then is the longitudinal axis 116 parallel to the axis of rotation 58 the cleaning roller unit 18th oriented.

The longitudinal axis 116 the dirty fluid tank device 66 runs between a first outer end 118 and a second outer end 120 the dirty fluid tank device 66 , wherein the dirty fluid tank device 66 between the first outer end 118 and the second outer end 120 has their largest length dimensions.

The recess 114 serves to lead through at least a partial area of the transmission device 68 . The cleaning roller unit 18th is driven centrally. The transmission device 68 bridges the distance between the drive motor 28 and the wave 70 . The recess 114 saves on the dirty fluid tank facility 86 to a certain extent, the spatial area which the transmission device 68 records.

It can be provided that the receiving chamber 64 a respective recording room 88 for the first chamber 110 and the second chamber 112 having.

It is also possible to have a common recording room 88 for the first chamber 110 and the second chamber 112 is provided.

The first chamber 110 and the second chamber 112 are over a bridge 122 interconnected so that the dirty fluid tank device 66 forms a unit and as a whole of the cleaning head 14th is removable or can be used in these.

In one embodiment, the dirty fluid tank means 66 a lid flap 124 on, which can be pivoted via spaced pivot bearings 126a , 126b at the first chamber 110 and the second chamber 112 sits.

The lid flap 124 can be opened to provide a suitable emptying opening for the first chamber 110 and the second chamber 112 provide and, if necessary, the dirty fluid tank device 66 to be able to clean in an interior.

In one embodiment, which is shown in 8th to 10 shown are the first chamber 110 and the second chamber 112 fluid-tight separated from each other. The lid flap 124 is a common cover flap for both the first chamber 110 as well as the second chamber 112 . By opening the cover flap 124 can then both the first chamber 110 as well as the second chamber 112 be emptied or there is an access to the first chamber 110 and the second chamber 112 provided in order to be able to carry out an appropriate cleaning.

The lid flap is with the first chamber 110 and / or the second chamber 112 and / or the bridge 122 fixable in such a way that when the cover flap is closed 124 a fluid tight dirty fluid tank assembly 66 (except for an entrance mouth) is provided.

It is basically possible that the dirty fluid tank device 66 also includes mechanically separate chambers, in which case each chamber is the first part 72 and the second part 74 the cleaning roller unit 18th assigned. In this case, the corresponding parts of the dirty fluid tank device must then be separated from the cleaning head 14th can be removed or used.

The dirty fluid tank facility 66 has a bottom 128 on which on an outside of the floor 84 each at the first chamber 110 and at the second chamber 112 is formed. It also has an underside 128 opposite top 130 on, which is on an outside of the cover flap 124 is formed.

At the top 130 the dirty fluid tank device 66 and thus on the lid flap 124 is a recess 132 (or are several recesses 132 ) educated. The recess or recesses 132 are channel-shaped and have an undercut surface 134 on.

The flap 102 has a counter element 136 (or several counter elements 136 ), which to cooperate with the recess 132 serve.

On the counter element 136 or the counter elements 136 is a blocking element 138 arranged ( 5 to 7th ), which for cooperation with the undercut surface 134 serves. If the counter element 136 with its locking element 138 into the recess 132 is immersed and the holding position 100 is reached, then the locking element is 138 at the undercut surface 134 at. This is the flap 102 opposite pivoting away from the top 130 the dirty fluid tank device 66 blocked. An appropriate amount of force must be exerted to move the locking element 138 from the undercut surface 134 lead away.

The dirty fluid tank facility 66 is in relation to the flap 102 and the receiving chamber 64 positioned so that when the dirty fluid tank device 66 in the holding position 100 at the receiving chamber 64 is positioned, the locking element 138 into the recess 132 is immersed and correspondingly on the undercut surface 134 and thus the holding position 100 secures.

In one embodiment, the dirty fluid tank means 66 one to the step 96 adjusted level 140 (see for example 6th ) on.

When the dirty fluid tank device 66 in the recording room 88 is inserted, then locks the receiving chamber wall 86 mobility of the dirty fluid tank device 66 in the recording room 88 in the directions transverse to the removal / insertion direction 92 .

This form-fit locking is possibly through the steps 96 , 140 supported.

The floor 84 the receiving chamber 64 prevents the dirty fluid tank device from "submerging" 66 when inserting.

When the flap 102 is closed and the locking element 138 in the recess 132 with contact on the undercut surface 134 is positioned, then there is a blocking of the mobility parallel to the removal direction 92 around the stop position 100 the dirty fluid tank device 66 at the receiving chamber 64 is save.

The flap 102 is designed in particular as a hold-down device, which is used for a defined positioning of the dirty fluid tank device 66 in relation to the cleaning roller unit 18th cares.

The flap 102 is in particular arranged or formed elastically in such a way that in the holding position 100 the flap 102 exerts a corresponding positioning force and in particular the dirty fluid tank device 66 against the ground 84 and also the wall area 94 is pressed. Pressing against the wall area 94 is also through cooperation of the stage 96 to the wall area 94 with the level 140 in the dirty fluid tank facility 66 supported.

It can be provided that the flap 102 for example on the pivot bearing 106 is spring-loaded. Alternatively or additionally, the flap 102 for example on the counter element 136 be designed that a corresponding elastic force on the dirty fluid tank device 66 is exercisable.

The cleaning head 14th has a scraper guide 142 (see. 5 ) on the cleaning roller unit 18th (and on the first part 72 and the second part 74 ) acts and is used by the cleaning roller unit 18th to dissolve entrained dirt fluid (especially water with dirt particles) and an inlet port 144 the dirty fluid tank device 66 , which in the holding position 100 on the cleaning head 14th is fixed to feed. This then causes dirty fluid into the dirty fluid tank device 66 coupled.

The entrance mouth 144 the dirty fluid tank device 66 is slit-like ( 9 ). It comprises a first part 146 , which is an entrance port for the first chamber 110 is, and comprises a second part 148 , which is an inlet port for the second chamber 112 is.

The in 9 The embodiment shown have the first part 146 and the second part 148 each a greater length in the longitudinal axis 116 on than the assigned chamber 110 respectively 112 . The dirty fluid tank facility 66 points at the end of the entrance mouth 144 on the first part 146 and on the second part 148 a respective wall to get over the first part 146 and the second part 148 the entrance mouth 144 collected dirty fluid in each case of the first chamber 110 or the second chamber 112 to be able to supply.

The first part 146 the entrance mouth 144 is the first part 72 the cleaning roller unit 18th assigned. The second part 148 the entrance mouth 144 is the second part 74 the cleaning roller unit 18th assigned. The first part 146 and the second part 148 the entrance mouth 144 are spaced from one another according to the spacing of the first part 72 and the second part 74 .

Preferably the first part 146 and the second part 148 each a length in the longitudinal axis 116 on which at least approximately a corresponding trimming length of the first part 72 or the second part 74 the cleaning roller unit 18th along the axis of rotation 58 corresponds.

The scraper guiding device 142 is designed so that dirt fluid from the cleaning roller unit via it 18th strips off and into the entrance mouth 144 directs.

It is possible that with the cleaning roller unit rotating 18th a guiding effect is achieved via the effect of the centrifugal force and, so to speak, dirty fluid in the dirty fluid tank device 66 is thrown.

The scraper guiding device 142 is spaced from the axis of rotation 58 .

In one embodiment (see, for example 5 ) the scraper guiding device protrudes 142 with a depth T in the trim 42 the cleaning roller unit 18th . The depth T is in particular at least 5% of a thickness D ( 5 ) of the trim 42 the cleaning roller unit 18th based on a damp condition of the trim 42 .

The scraper guiding device 142 is in particular by one or more edge elements 150 educated. For example is the first part 72 and the second part 74 the cleaning roller unit 18th a respective edge element 150 assigned.

An edge element 150 is designed as a bar, which accordingly in the trim 42 the cleaning roller unit 18th on the first part 72 and the second part 74 protrudes.

The edge element 150 has a relatively small thickness, which is in particular smaller than a thickness D of the trim 42 .

In one embodiment, the edge elements are 150 or the edge elements 150 formed curved.

The scraper guiding device 142 with the edge element 150 or the edge elements 150 in particular forms a wall of the inlet mouth 144 .

That or the edge element 150 are on one edge, which is the entrance mouth 144 facing, rounded or chamfered. This causes fibers of the trim 42 spared and it has to be done with the rotation of the cleaning roller unit 18th a small force to be overcome. This in turn results in an energy-saving effect. This rounding on the edge is in 5 with the reference number 151 indicated.

It can basically be provided that the stripping guide device 142 on the cleaning roller holder 60 is arranged.

In the embodiment shown, the stripping guide device is seated 142 on the dirty fluid tank facility 66 .

This has a wall 152 on which in the holding position 100 the wall area 94 is facing. That or the edge element 150 are on the corresponding wall 152 the first chamber 110 and the second chamber 112 arranged.

The corresponding scraper guide device 142 is preferably outside the cover flap 124 the dirty fluid tank device 66 arranged.

In this embodiment, the stripping guide device 142 from the cleaning head 14th removed when the dirty fluid tank device 66 is removed from this.

It is also provided that on the cleaning head 14th the cleaning roller unit 18th assigned a cover 154 is positioned. The cover 154 is below the scraper guide device 142 (with the edge element or elements 150 ) arranged. The edge element 150 is curved so that it is at a corresponding curvature of the cleaning roller unit 118 with the trim 42 is adapted.

Basically, the cover 154 the trimming 42 touch or penetrate into this, the penetration preferably taking place at a shallower depth than the penetration of the stripping guide device 142 over the depth T.

In one embodiment, the fluid line opens 40 or the fluid lines open 40 in one area 156 between the cover 154 and the scraper guide 142 . The cleaning roller unit can then be in this area 18th with cleaning fluid from the tank facility 34 are applied.

In particular, the area 146 a length along the axis of rotation 58 on which at least approximately a corresponding length of the first part 72 or the second part 74 the cleaning roller unit 18th corresponds to an even application of liquid to the cleaning roller unit 18th allow over their length.

In the embodiment shown, the cover is 154 on the dirty fluid tank facility 66 arranged.

It must then be ensured that a suitable coupling of the fluid line 40 or fluid lines 40 is reached.

In relation to a direction of rotation 158 (see. 5 ) of the cleaning roller unit 18th In a cleaning company is the scraper guide device 142 with their edge element 150 or their edge elements 150 the entrance mouth 144 subordinate. This means that dirty fluid is “thrown in”, which was previously caused by the cleaning roller unit 18th of the surface to be cleaned 16 was taken and in the direction of the Abstreif-Leiteinrichtung 142 was transported via the stripping guide device 142 into the entrance mouth 144 and thereby into the dirty fluid tank device 66 enables.

The cleaning roller unit 18th is also a sweeping element in one embodiment 160 assigned, which serves to remove coarse dirt from the cleaning roller unit 18th feed. This can then with the cleaning roller unit 18th get picked up.

The entrance mouth 144 is between the scraper guide 142 on the sweeping element 160 arranged.

In the embodiment shown, the sweeping element 160 on the cleaning roller holder 60 at the holding area 62 positioned. The sweeping element 160 is designed so that it is at least in an angular position range (if the surface cleaning machine 10 is not set up too steeply) the surface cleaning machine 10 based on the longitudinal axis 20th to the surface to be cleaned 16 on the surface to be cleaned 16 can act for the sweeping function.

The sweeping element 160 is for example pivotable on the cleaning roller holder 60 arranged and / or it is designed to be elastic.

In particular, the sweeping element protrudes 160 in the trimming 42 the cleaning roller unit 18th . But it can do the trimming 42 even just touching or being at a distance from it.

In relation to the direction of rotation 158 the cleaning roller unit 18th if this by the drive motor 28 is driven in its rotational movement, follows the surface to be cleaned 16 first the sweeping element 160 , then a leadership area 162 of the cleaning roller holder 60 , which is (hollow) cylindrical in shape and to the cleaning roller unit 18th adjusted, then the entrance mouth 144 , then the scraper guiding device 142 with the edge element or elements 150 and then the cover 154 , the area 156 between the cover 154 and the scraper guide 142 lies.

In the embodiment shown, the surface cleaning machine is 10 Designed without a suction fan. Dirty fluid, which through the cleaning roller unit 18th is not taken into the dirty fluid tank device by an additional suction fan 66 sucked in, but the scraper guide device 142 alone ensures that dirty fluid in the dirty fluid tank device 66 is coupled.

In principle, however, it is also possible for the coupling to be supported by an additional suction fan.

• In einem Reinigungsbetrieb ist die Schmutzfluidtankeinrichtung 66 an dem Reinigungskopf 14 in der Halteposition 100 fixiert.

The surface cleaning machine 10 works like this:

• The dirty fluid tank device is in a cleaning operation 66 on the cleaning head 14th in the holding position 100 fixed.

The surface cleaning machine is used for a cleaning process 10 solely via the cleaning roller unit 18th on the surface to be cleaned 16 put on. The drive motor 28 drives the cleaning roller unit 18th in a rotational movement around the (single) axis of rotation 58 in the direction of rotation 158 at.

The cleaning roller unit 18th is with cleaning fluid from the tank device 34 applied.

Dirt on the surface to be cleaned 16 will when the moistened trimming 42 the cleaning roller unit 18th acts on him, moistened to make it easier to remove.

The rotation of the cleaning roller unit 18th causes a mechanical effect on dirt on the surface to be cleaned 16 to make it easier to remove from the surface to be cleaned 16 to obtain.

Any coarse dirt can be removed with the sweeping element 160 the cleaning roller unit 18th are fed.

Dirt fluid (dirt particles, cleaning fluid with loosened dirt) is passed through the cleaning roller unit 18th taken and at the stripping guide device 142 the dirty fluid from the cleaning roller unit 18th dissolved and (among other things under the effect of centrifugal force) in the inlet mouth 144 from there into the dirty fluid tank device 66 . The scraper guiding device 142 ensures a solution of the dirty fluid from the trim by stripping 42 the cleaning roller unit 18th .

The coupling of dirty fluid into the dirty fluid tank device 66 takes place in particular without a suction fan.

The dirty fluid tank facility 66 is removable from the cleaning head 14th positioned.

The flap 102 ensures that the holding position is secured 100 . In the holding position 100 is the entrance mouth 144 the dirty fluid tank device 66 also in relation to the scraper guide 142 so with respect to the cleaning roller unit 18th aligned that the corresponding release function and coupling function is achieved as described above.

The flap 102 with its function as a hold-down device ensures that the edge element 150 or the edge elements 150 with the depth T in the trim 42 be pressed in to achieve an optimal release function by stripping.

In particular, the stripping guide device 142 on the dirty fluid tank facility 66 arranged and with this from the cleaning head 14th detachable.

The flap 102 presses with its counter element 136 and the locking element arranged thereon 138 on top 130 the dirty fluid tank device 66 and thereby secures the holding position, in which also the relative positioning of the stripping guide device described above 142 to the cleaning roller unit 18th is reached.

It becomes a form-fitting holder for the dirty fluid tank device 66 at the receiving chamber 64 in the holding position 100 provided.

For removing the dirty fluid tank assembly 66 ( 3 , 6th , 7th ) becomes the flap 102 open. It will be towards the device body 12 pivoted. To the locking element 138 from the recess 132 with the undercut surface 134 lead out, a corresponding elastic deformation of the counter element 136 be performed.

With the flap fully open 102 ( 6th ) the dirty fluid tank can then 66 can be removed (cf. 3 ).

By opening the cover flap 124 the dirty fluid tank device 66 this can be emptied and, if necessary, cleaned by rinsing, for example.

The dirty fluid tank facility 66 has a capacity of approximately 150 ml, for example.

The surface cleaning machine 10 has a relatively low energy requirement, since no suction fan has to be provided and dirty fluid directly from the cleaning roller unit 18th with "minimized path" into the dirty fluid tank facility 66 is coupled.

The surface cleaning machine 10 can therefore be optimized with a rechargeable battery device 44 operate.

With the surface cleaning machine according to the invention, hard floors can be wet-cleaned with a high degree of automation. The effort required to wipe is due to the mechanical support provided by the driven rotating roller 18th reduced or eliminated. The moistening of the cleaning roller unit 18th enables an operator to perform a cleaning operation without coming into contact with dirty fluid.

In addition, in a cleaning operation, the cleaning roller unit is self-cleaning to a certain extent 18th .

The dirty fluid tank facility 66 is between the cleaning roller unit 18th and the drive motor 28 arranged. A longitudinal direction of the entrance mouth 144 which is parallel to the longitudinal axis 116 is parallel to the axis of rotation 58 the cleaning roller unit 18th and transversely and in particular perpendicular to the motor axis 46 . Furthermore, this longitudinal axis is the inlet mouth 144 transversely and in particular perpendicular to the longitudinal axis 20th .

It can be provided that the drive motor 28 is also used to drive one or more suction turbines, which correspond to an interior of the dirty fluid tank device 66 are in fluid-effective connection in order to generate a negative pressure which improves the coupling of dirty fluid into the dirty fluid tank device.

Basically, the surface cleaning machine 10 also operate in network operation.

The sweeping element 160 can also be attached to the dirty fluid tank facility 66 be arranged.

Overload protection can be provided. This is designed, for example, as a mechanical overload protection device, which includes a slip clutch, for example. Alternatively or additionally, electronic overload protection can be provided which, for example, performs an overcurrent shutdown.

During normal cleaning operations, the tank facility is 34 based on the direction of gravity above the cleaning head 14th arranged. As a result, cleaning liquid can be pumped from the tank device under the action of gravity 34 to the cleaning head 14th stream to the surface to be cleaned 16 directly or indirectly via the cleaning roller unit 18th to apply cleaning fluid.

The surface cleaning machine 10 can be designed so that the sweeping element 160 only becomes effective when a certain angular position in relation to the longitudinal axis 20th to the surface to be cleaned 16 is set and in particular an angle between the surface to be cleaned 16 and the longitudinal axis is below a maximum angle.

List of reference symbols

10

Area cleaning machine

12

Device body

14th

Cleaning head

16

Surface to be cleaned

18th

Cleaning roller unit

20th

Longitudinal axis

22nd

Holding rod device

24

Holding rod

26th

Handle

28

Drive motor

30th

casing

32

holder

34

Tank facility for cleaning liquid

36

Tank mount

38

Valve device

39

Filter device

40

Fluid line

42

Trim

44

Battery device

46

Motor axis

48

Swivel axis

50

Double arrow

52

Inner sleeve

54

Outer sleeve

56

Pivot bearing

58

Axis of rotation

60

Cleaning roller holder

62

Holding area

64

Receiving chamber

66

Dirty fluid tank facility

68

Transmission device

70

wave

72

First part

74

Second part

76

Intermediate area

78

Sleeve

80

First face

82

Second face

84

ground

86

Receiving chamber wall

88

Recording room

90

page

92

Removal / insertion direction

94

Wall area

96

step

98

Fixation device

100

Holding position

102

flap

104

Swivel axis

106

Pivot bearing

108

direction

110

First chamber

112

Second chamber

114

Recess

116

Longitudinal axis

118

First outer end

120

Second outer end

122

bridge

124

Lid flap

126a

Pivot bearing

126b

Pivot bearing

128

bottom

130

Top

132

Recess

134

Undercut surface

136

Counter element

138

Locking element

140

step

142

Stripping guide device

144

Inlet mouth

146

First part

148

Second part

150

Edge element

151

Rounding, chamfering

152

Wall

154

cover

156

Area

158

Direction of rotation

160

Sweeping element

162

Leadership area

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2010/041185 A1 [0002]
• US 7665174 B2 [0003]
• US 4173054 [0004]
• WO 2013/106762 A2 [0005]
• US 7921497 B2 [0006]

Claims (39)

Surface cleaning machine, comprising a cleaning head (14) with a driven cleaning roller unit (18) with an axis of rotation (58), the surface cleaning machine being supported on a surface (16) to be cleaned only via the cleaning roller unit (18) in a cleaning operation, a drive motor (28) for the cleaning roller unit (18), and a dirty fluid tank device (66) which is detachably arranged on the cleaning head (14). Surface cleaning machine after Claim 1 , characterized in that a longitudinal axis (116) of the dirty fluid tank device (66) is oriented parallel to the axis of rotation (58) of the cleaning roller unit (18). Surface cleaning machine after Claim 1 or 2 , characterized in that a motor axis (46) of the drive motor (28) is oriented transversely and in particular perpendicular to a longitudinal axis (116) of the dirty fluid tank device (66). Surface cleaning machine according to one of the preceding claims, characterized in that the dirty fluid tank device (66) is arranged between the cleaning roller unit (18) and the drive motor (28). Surface cleaning machine after Claim 4 , characterized by a gear device (68) for torque transmission, which is arranged between the drive motor (28) and the cleaning roller unit (18), that the dirty fluid tank device (66) has an upper side (130) and a lower side (128), the lower side ( 128) facing a cleaning roller holder (60) of the cleaning roller unit (18) and the top (130) facing away from the bottom (128), and that the gear device (68) on the bottom (128) or the top (130) of the dirty fluid tank device ( 66) is passed. Surface cleaning machine after Claim 5 , characterized in that the dirty fluid tank device (66) has a recess (114) in which at least a partial area of the gear device (68) is positioned when the dirty fluid tank device (66) is fixed to the cleaning head (14). Surface cleaning machine according to one of the preceding claims, characterized by a device body (12) on which the cleaning head (14) is arranged, at least one of the following devices being positioned on the device body (12): a tank device (34) for cleaning liquid; valve means (38) for supplying cleaning liquid to the cleaning head (14); a battery device (44) for the drive motor (28); a holding rod device (22) for holding and / or guiding the surface cleaning machine; a filter device (39) for cleaning liquid; at least partially the drive motor (28). Surface cleaning machine after Claim 7 , characterized in that the drive motor (28) is arranged at least partially between the device body (12) and the cleaning head (14), wherein it is in particular partially arranged in the device body (12). Surface cleaning machine after Claim 7 or 8th , characterized in that the cleaning head (14) can be pivoted about a pivot axis (48) relative to the drive motor (28) and / or the device body (12), the pivot axis (48) in particular being parallel or coaxial to a motor axis (46) of the drive motor (28) is oriented. Surface cleaning machine according to one of the preceding claims, characterized in that a cleaning roller holder (60) has a receiving chamber (64) with a receiving space (88) for the dirty fluid tank device (66). Surface cleaning machine after Claim 10 , characterized in that the receiving chamber (64) is assigned a fixing device (98) by means of which the dirty fluid tank device (66) can be fixed to the receiving chamber (64), the fixing device (98) for the removability of the dirty fluid tank device (66) from the The cleaning head (14) is designed to be detachable and, in particular, the fixing device (98) is designed such that the dirty fluid tank device (66) is held in a holding position (100) on the receiving chamber (64) by a form fit. Surface cleaning machine after Claim 11 , characterized in that the fixing device (98) is or comprises at least one pivotable flap (102). Surface cleaning machine after Claim 12 , characterized in that a pivot axis (104) of the at least one flap (102) is aligned at least approximately parallel to an axis of rotation (58) of the cleaning roller unit (18). Surface cleaning machine after Claim 12 or 13th , characterized in that the at least one flap (102) acts on an upper side (130) of the dirty fluid tank device (66) which faces away from an underside (128), the The underside (128) of the dirty fluid tank device (66) faces a bottom (84) of the receiving chamber (64) when the dirty fluid tank device (66) is fixed to the cleaning head (14). Area cleaning machine according to one of the Claims 12 to 14th , characterized in that the at least one flap (102) is designed as a hold-down device, which positions the dirty fluid tank device (66) in a defined manner in relation to the cleaning roller unit (18) and / or positions it in the receiving space (88) and in particular the dirty fluid tank device (66) in a holding position (100) presses against a base (84) of the receiving chamber (64). Surface cleaning machine after Claim 14 or 15th , characterized in that the at least one flap (102) is spring-loaded and / or is designed to be elastic such that the dirty fluid tank device (66) is held in the receiving space (88) with a bias. Area cleaning machine according to one of the Claims 14 to 16 , characterized in that at least one recess (132) is arranged on the upper side (130) of the dirty fluid tank device (66) and the at least one flap (102) has at least one counter element (136) for dipping into the at least one recess (132). Surface cleaning machine after Claim 17 , characterized in that the at least one recess (132) has at least one undercut (134) and the at least one counter-element (136) has a locking element (138) which is adapted to the at least one undercut (134) and which, when the at least one flap ( 102) blocks a mobility of the dirty fluid tank device (66) in a direction (92) away from a bottom (84) of the receiving chamber (64). Area cleaning machine according to one of the Claims 11 to 18th , characterized in that the receiving chamber (64) and the dirty fluid tank device (66) are designed to be adapted to one another so that in a holding position (100) of the dirty fluid tank device (66) on the receiving chamber (64) a mobility of the dirty fluid tank device (66) transversely to a Vertical of a bottom (84) of the receiving chamber (64) is blocked. Surface cleaning machine according to one of the preceding claims, characterized in that the dirty fluid tank device (66) has one or more cover flaps (124). Surface cleaning machine according to one of the preceding claims, characterized in that the dirty fluid tank device (66) is designed as a unit. Surface cleaning machine according to one of the preceding claims, characterized in that the cleaning roller unit (18) is designed in two parts with a first part (72) and a second part (74), the first part (72) of the cleaning roller unit (18) being a first Chamber (110) of the dirty fluid tank device (66) and the second part (74) of the cleaning roller unit (18), a second chamber (112) of the dirty fluid tank device (66) is assigned, and in particular the drive motor (28) to a central area, which between the first part (72) and the second part (74) acts. Surface cleaning machine according to one of the preceding claims, characterized by a stripping guide device (142) for dirty fluid, which acts on the cleaning roller unit (18) and which is arranged at an inlet opening (144) of the dirty fluid tank device (66). Surface cleaning machine after Claim 23 , characterized in that the stripping guide device (142) is arranged and designed in such a way that dirty fluid, which has been carried along by the cleaning roller unit (18), is released by being wiped from the cleaning roller unit (18) and to the inlet opening (144) of the dirty fluid tank device (66) is directed. Surface cleaning machine after Claim 23 or 24 , characterized in that the wiping guide device (142) is designed so that dirty fluid is passed through the wiping guide device (142) at the inlet opening (144) of the dirty fluid tank device (66) into the dirty fluid tank device (66) without a suction fan. Area cleaning machine according to one of the Claims 23 to 25th , characterized in that, based on a direction of rotation (158) of the cleaning roller unit (18), the stripping guide device (142) is arranged downstream of the inlet opening (144). Area cleaning machine according to one of the Claims 23 to 26th , characterized in that the stripping guide device (142) protrudes into a trim (42) of the cleaning roller unit (18). Surface cleaning machine after Claim 27 , characterized in that the stripping guide device (142) is rounded or chamfered at an edge which protrudes into the facing (42) and which faces the inlet opening (144). Surface cleaning machine after Claim 27 or 28 , characterized in that the stripping guide device (142) protrudes into the facing (42) with a depth (T) of at least 5% of a thickness (D) of the facing (42), based on a moist facing (42). Area cleaning machine according to one of the Claims 23 to 29 , characterized in that the stripping guide device (142) is arranged on the dirty fluid tank device (66) and can be removed from the cleaning head (14) together with the dirty fluid tank device (66). Area cleaning machine according to one of the Claims 23 to 30th , characterized in that the stripping guide device (142) is formed by one or more edge elements (150), in particular one edge element (150) at least partially forming a wall of the inlet opening (144). Surface cleaning machine according to one of the preceding claims, characterized in that at least one sweeping element (160) is arranged on the cleaning head (14), through which coarse dirt can be fed to the cleaning roller unit (18) to be carried along by the cleaning roller unit (18). Surface cleaning machine after Claim 32 , characterized in that an inlet opening (144) of the dirty fluid tank device (66) is positioned between a scraper guide device (142) and the at least one sweeping element (160). Surface cleaning machine according to one of the preceding claims, characterized by a battery device (44) and in particular a rechargeable battery device (44) for supplying the drive motor (28) with electrical energy. Surface cleaning machine after Claim 34 , characterized in that the drive motor (28) is arranged between the battery device (44) and the cleaning head (14). Surface cleaning machine according to one of the preceding claims, characterized by a tank device (34) for cleaning liquid. Surface cleaning machine after Claim 36 , characterized in that the tank device (34) for cleaning liquid is positioned in relation to the direction of gravity above the cleaning roller unit (18) when the surface cleaning machine is operated in a proper cleaning mode with the cleaning roller unit (18) placed on the surface (16) to be cleaned . Surface cleaning machine according to one of the preceding claims, characterized in that an inlet opening (144) of the dirty fluid tank device (66) has a longitudinal direction which is oriented parallel to an axis of rotation (58) of the cleaning roller unit (18). Surface cleaning machine according to one of the preceding claims, characterized by a design as a hand-operated or hand-operated surface cleaning machine.

Images