DE102017120722A1 - Surface cleaning machine with counter-rotating cleaning roller units and method for operating a surface cleaning machine - Google Patents

Abstract

There is provided a surface cleaning machine comprising a cleaning head (12) having a first cleaning roller unit (16) rotationally driven in a first rotational direction (36) and a second cleaning roller unit (18) rotating in a second rotational direction (FIG. 38), wherein the second rotation direction (38) is opposite to the first rotation direction (36), wherein the first cleaning roller unit (16) is associated with a first sweeping member (72) interposed between the first cleaning roller unit (16) and the second cleaning roller unit (18) is positioned and / or the second cleaning roller unit (18) is associated with a second sweeping element (74).

Description

The invention relates to a surface cleaning machine comprising a cleaning head having a first cleaning roller unit which is rotationally driven in a first rotational direction, and a second cleaning roller unit which is rotationally driven in a second rotational direction, the second rotational direction being opposite to the first rotational direction ,

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

From the US Pat. No. 7,665,174 B2 a cleaning head for a floor cleaning machine is known.

From the US 4,173,054 For example, 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 dirt 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. There is provided a dirt tray into which the cleaning roller rotates during rotation. The dirt tray can be opened.

From the US Pat. No. 7,921,497 B2 For example, there is known a floor scrubber which is manually operated and includes a drive roller coupled to a scrub roller.

From the non pre-published PCT applications / EP2015 / 073275 PCT / EP2015 / 072929, PCT / EP2015 / 073529, PCT / EP2015 / 073116, PCT / EP2015 / 073478 surface cleaning machines are known. From the non-prepublished PCT / EP2015 / 073315 a surface cleaning machine is also known.

From the US 4,875,246 For example, a portable floor cleaning apparatus is known, which has a roller driven by an electric motor.

From the DE 20 2009 013 434 U1 is a device for floor wet cleaning with a brush, which is rotatable about a rotation axis known.

From the CN 201 197 698 Y is a cleaning machine known.

From the US 6,026,529 a device for cleaning floors or other hard surfaces is known.

From the WO 2005/087075 A1 a floor cleaning machine is known with a handle which is pivotally mounted on a base.

From the WO 2015/086083 A1 Another floor cleaning machine is known.

From the US 3,789,449 is a hard floor cleaning device known.

In the non-prepublished International Application PCT / EP2017 / 070435 of Aug. 11, 2017, a surface cleaning machine comprising a cleaning head having at least one powered cleaning roller unit, a dirty fluid tank means disposed on the cleaning head, and a dirty fluid wiping guide on which acts at least one cleaning roller unit described. The Schmutzfluidtankeinrichtung comprises a container means for dirty fluid and a cover means for the container means, wherein on the cover means a channel means for cleaning liquid is arranged and on the lid means an orifice means is arranged, which is fluidly connected to the channel means and by means of which the at least one cleaning roller unit acted upon with cleaning liquid is.

Alfred Kärcher Vertriebs-GmbH Reinigungssysteme, Winnenden, Germany distributes a hard floor cleaner under the name FC5 with a parking and cleaning station for cleaning and stowing the hard floor cleaner.

The invention has for its object to provide a surface cleaning machine of the type mentioned, which has an effective cleaning effect.

This object is achieved in the surface cleaning machine mentioned above according to the invention that the first cleaning roller unit is associated with a first sweeping element which is positioned between the first cleaning roller unit and the second cleaning roller unit, and / or the second cleaning roller unit is associated with a second sweeping element which between the first cleaning roller unit and the second cleaning roller unit is positioned.

(Grob-) dirt can accumulate on the first sweeping element or the second sweeping element. This can be done by the first cleaning roller unit or second cleaning roller unit Coarse dirt are taken and thereby be removed.

The first cleaning roller unit and the second cleaning roller unit mechanically act on a surface to be cleaned. They are especially moistened to achieve an improved soil solution. It is then possible to dissipate loosened dirt through the first cleaning roller unit and the second cleaning roller unit.

The fact that two opposing cleaning roller units are provided, results in a full contact pressure to the surface to be cleaned with an effective cleaning effect.

It can thereby be achieved that the first sweeping element or the second sweeping element always have a constant distance to the surface to be cleaned and thereby an effective cleaning effect is achieved even with respect to coarse dirt.

Dirt which is thrown from the first cleaning roller unit toward the second cleaning roller unit can be picked up by the second cleaning roller unit. Dirt, which is thrown from the second cleaning roller unit toward the first cleaning roller unit, can be picked up by the first cleaning roller unit. This results in an effective cleaning effect.

By means of the surface cleaning machine according to the invention, for example, hair can also be effectively absorbed by a surface to be cleaned.

Specifically, the first rotational direction is such that a portion of the first cleaning roller unit which has acted on a surface to be cleaned moves towards the first sweeping element in the first rotational direction and dirt located on the first sweeping element moves away from the surface to be cleaned with the first sweeping element Cleaning roller unit is entrained. As a result, both an effective sweeping effect and dirt-entrainment effect can be achieved.

For the same reason, it is preferable that, with respect to the second rotation direction, a portion of the second cleaning roller unit which has acted on a surface to be cleaned moves towards the second sweeping element in the second rotation direction and dirt to be cleaned from the second sweeping element Surface away with the second cleaning roller unit is entrained.

Advantageously, the first sweeping element is arranged relative to the first direction of rotation between a region of the first cleaning roller unit, with which it acts on the surface to be cleaned, and a first inlet opening device for dirty fluid from the first cleaning roller unit. This results in a collection effect with respect to coarse dirt and collected coarse dirt can be taken by the cleaning roller unit to the intake port device.

For the same reason, it is favorable if the second sweeping element is arranged relative to the second rotational direction between a region of the second cleaning roller unit with which it acts on the surface to be cleaned and a second inlet opening device for dirty fluid from the second cleaning roller unit.

It is advantageous if both the first sweeping element and the second sweeping element are provided, that the first sweeping element and the second sweeping element are facing each other. This results in an effective cleaning effect. In particular, no cleaning roller unit is arranged between the first sweeping element and the second sweeping element.

It is advantageous if a dirty fluid tank device is provided for receiving dirty fluid. The dirty fluid tank device may be arranged outside the cleaning head or may be arranged on the cleaning head. It is also possible that the Schmutzfluidtankeinrichtung has a plurality of parts which are arranged at different locations.

In one embodiment, the Schmutzfluidtankeinrichtung is at least partially disposed between the first cleaning roller unit and the second cleaning roller unit on the cleaning head and in particular arranged at least with a partial area between the first sweeping element and the second sweeping element. This results in a short transport path for dirt fluid from the first cleaning roller unit and the second cleaning roller unit into the dirty fluid tank device. The cleaning head can be realized with a low center of gravity. This results in a low cleaning effort to clean the surface cleaning machine itself. Furthermore, a high receiving volume for the Schmutzfluidtankeinrichtung can be achieved. It is realized an optimal use of space.

The above-mentioned object is additionally or alternatively achieved in that at the cleaning head, a first inlet mouth means and a second inlet mouth means are arranged, wherein the first An inlet port device is associated with the first cleaning roller unit and the second inlet port device is associated with the second cleaning roller unit, and that a fan device in fluidly effective connection with at least a portion of the first inlet port device and / or with at least a portion of the second inlet port device.

The first inlet opening device or the second inlet opening device can then be subjected to a suction flow via the blower device. Dirt fluid can be removed via this suction flow.

For example, it is possible to apply the suction flow to the first cleaning roller unit or the second cleaning roller unit directly. It is alternatively or additionally possible for a region in front of (adjacent) the corresponding cleaning roller unit to be subjected to a suction flow. This allows, for example, sucked out hair or the like.

The combination of a blower device with opposing cleaning roller units results in an effective cleaning effect.

In one embodiment, the blower device is arranged on the cleaning head. It can also be arranged on a holding rod device on which the cleaning head is seated.

It can be provided that the first inlet opening device is fluid-effectively connected to at least one first channel, which provides a fluid-effective connection with the blower device, and / or the second inlet mouth device is fluid-effectively connected to at least one second channel, which for a fluid-effective connection with the Blower ensures. As a result, an effective Saugstrom charge can be achieved, in turn, to be able to dissipate dirt fluid effectively.

In one exemplary embodiment, the first inlet opening device and / or the second inlet mouth device are arranged and configured with at least one partial area such that dirt fluid can be discharged directly from the associated cleaning roller unit. The suction flow, which is generated by the blower device, then acts directly on the first cleaning roller unit or the second cleaning roller unit and flows to them.

For the same reason, it is favorable if the first inlet opening device is arranged at least in a partial area with respect to the first rotational direction between a first sweeping element and a first outlet opening device for cleaning liquid and / or the second inlet mouth device at least in a partial area with respect to the second rotation direction between a second sweeping element and a second outlet mouth means for cleaning liquid is arranged. This results on the one hand an effective soil release action and on the other hand an effective removal of dirt fluid.

For the same reason, it is favorable if the first inlet orifice device is connected upstream of a first outlet opening device for cleaning liquid and / or the second inlet orifice device is connected upstream of a second outlet opening device for cleaning liquid with respect to the second rotation direction. It is possible to moisten the corresponding cleaning roller unit in order to achieve an improved dirt-removing function with a mechanical action on the surface to be cleaned, and dirt fluid picked up can be effectively removed.

It is also favorable if the first inlet opening device opens into a receptacle of the cleaning head for the first cleaning roller unit at least in one partial area and / or the second inlet mouth device opens into a receptacle of the cleaning head for the second cleaning roller unit at least in a partial area. This makes it easy to achieve a direct Saugstromaufschlagung the corresponding cleaning roller unit.

In one embodiment, the first inlet muzzle device with a region or partial area lying on the first cleaning roller unit leads into a dirty fluid tank device, which is arranged on the cleaning head, and in particular a first scraper for dirty fluid is provided and / or the second inlet muzzle device leads with a partial region or portions lying on the second cleaning roller unit in a dirty fluid tank means disposed on the cleaning head, and more particularly, a second dirty fluid wiper is provided by the second cleaning roller unit. It can then directly and, for example, fan-free remove dirt fluid from the corresponding cleaning roller unit and couple into the Schmutzfluidtankeinrichtung. Such an arrangement can also be combined with a blower device, so that both a direct coupling and a Saugstrombestschlagung are provided.

It is alternatively or additionally possible that a first intake port device at least is arranged in a partial area with respect to the first rotational direction adjacent to the first cleaning roller unit and / or that a second inlet mouth device is arranged at least in a partial area relative to the second rotational direction adjacent to the second cleaning roller unit. By means of such an arrangement, it is possible, for example, to effectively achieve a discharge of thrown-out dirt, such as, for example, thrown out hairs.

For the same reason, it is favorable if the first inlet opening device opens into a space in front of the first cleaning roller unit at least in a partial area and / or if the second inlet mouth device opens into a space in front of the second cleaning roller unit at least in a partial area. It can thereby achieve a removal of dirt fluid from the corresponding room. For example, hairs thrown out and the like can thus be removed and, in particular, sucked off.

It is furthermore favorable if the first inlet opening device is arranged downstream of a first outlet opening device for cleaning liquid for the first cleaning roller unit at least in a partial area relative to the first rotation direction and / or the second inlet opening device at least in a partial area relative to the second rotation direction of a second outlet opening device for cleaning fluid is arranged downstream of the second cleaning roller unit. It can be so effectively "flung" and dissipate thrown out dirt fluid (and especially hair).

In one embodiment, it is provided that a region or partial region of the first inlet orifice device, which lies next to the first cleaning roller unit, is fluidically connected to the blower device and / or that a region or partial region of the second inlet orifice device which lies next to the second cleaning roller unit is connected to the blower device Blower device is fluid effectively connected. It can thereby effectively dissipate thrown dirt fluid and thereby suck.

In one embodiment it is provided that both a scraper for dirty fluid and its (direct) coupling into a Schmutzfluidtankeinrichtung is provided for the first cleaning roller unit as well as a suction of dirt fluid through the blower device and / or that for the second cleaning roller unit both a stripping of dirt fluid and coupling into a Schmutzfluidtankeinrichtung is provided as well as a suction of dirt fluid through the blower device. The corresponding first inlet opening device and second inlet opening device are thereby formed in several parts. This results in an effective removal of dirt fluid. For example, this also results in an effective cleaning action with respect to hair. Hair which is thrown out again by the cleaning roller units can be sucked off.

It is favorable if a drive device for the first cleaning roller unit and the second cleaning roller unit is arranged on the cleaning head or is coupled to the cleaning head. For example, corresponding drive motors of this drive device can be integrated in a carrier of the corresponding cleaning roller unit.

In one embodiment, a common drive for the first cleaning roller unit and the second cleaning roller unit is provided. As a result, the number of components of the surface cleaning machine can be kept low.

In particular, a center drive for the first cleaning roller unit and / or the second cleaning roller unit is provided. Through such a center drive can be achieved close to the edge cleaning. Also outer areas of the cleaning roller unit can be used for cleaning. In particular, the first cleaning roller unit and / or the second cleaning roller unit are then formed in several parts and in particular in two parts. As a result, the corresponding cleaning roller unit can be driven in an effective manner via a center drive.

In one embodiment, the cleaning head is self-propelled and self-steering. All necessary components are arranged on the cleaning head. In particular, the cleaning head can then be used as a wiping robot with the first cleaning roller unit (wiping unit) and second cleaning roller unit (wiping unit).

In an alternative embodiment, a holding rod device holds the cleaning head pivotable, and in particular the surface cleaning machine is hand-held or hand-operated operable. An operator may guide the surface cleaning machine over a handle such as a loop handle on the holding bar device.

It is favorable if an adjusting device is provided, by means of which a rotational speed of the first cleaning roller unit and / or the second cleaning roller unit is adjustable. Due to a different rotational speed can be in the opposite Rotation directions to achieve a feed movement in a forward direction or reverse direction. In a self-propelled training of the cleaning head, the direction can be specified thereby. In a surface cleaning machine, which is hand-held or hand-guided, the corresponding surface cleaning machine can be operated comfortably.

According to the invention there is provided a method of operating a surface cleaning machine according to the invention, wherein the surface cleaning machine is mounted with a first cleaning roller unit and a second cleaning roller unit on a surface to be cleaned, wherein the first cleaning roller unit and the second cleaning roller unit are driven in rotation with a first rotational direction for the first cleaning roller unit and a second rotation direction for the second cleaning roller unit, wherein the first rotation direction and the second rotation direction are opposite to each other, and wherein the first cleaning roller unit is associated with a first sweeping element and / or the second cleaning roller unit with a second sweeping element, wherein in the method of operation a first portion of the first cleaning roller unit, which has touched the surface to be cleaned, in the first rotational direction on the first Kehrele ment and then moves to a first inlet mouth means and / or a second region of the second cleaning roller unit which has acted on the surface to be cleaned moves in a second direction of rotation to the second sweeping element and then moves to a second inlet mouth means.

This results in an effective cleaning effect. Coarse dirt, which accumulates on the first sweeping element or second sweeping element, can be taken along by the associated cleaning roller unit and discharged via the corresponding inlet mouth device.

The inventive method has the already explained in connection with the surface cleaning machine according to the invention advantages.

Further advantageous embodiments of the method according to the invention have already been explained in connection with the surface cleaning machine according to the invention.

• 1 eine perspektivische Darstellung eines Ausführungsbeispiels einer Flächen-Reinigungsmaschine;
• 2 eine perspektivische Darstellung eines Ausführungsbeispiels eines Reinigungskopfs der Flächen-Reinigungsmaschine gemäß 1;
• 3 eine perspektivische Darstellung eines weiteren Ausführungsbeispiels eines Reinigungskopfes der Flächen-Reinigungsmaschine gemäß 1;
• 4 eine Teilschnittdarstellung des Reinigungskopfs gemäß 3;
• 5 eine Schnittdarstellung eines weiteren Ausführungsbeispiels eines Reinigungskopfes;
• 6 eine Teildarstellung eines weiteren Ausführungsbeispiels eines Reinigungskopfes; und
• 7 eine perspektivische Darstellung eines weiteren Ausführungsbeispiels eines Reinigungskopfes.

The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention. Show it:

• 1 a perspective view of an embodiment of a surface cleaning machine;
• 2 a perspective view of an embodiment of a cleaning head of the surface cleaning machine according to 1 ;
• 3 a perspective view of another embodiment of a cleaning head of the surface cleaning machine according to 1 ;
• 4 a partial sectional view of the cleaning head according to 3 ;
• 5 a sectional view of another embodiment of a cleaning head;
• 6 a partial view of another embodiment of a cleaning head; and
• 7 a perspective view of another embodiment of a cleaning head.

An embodiment of a surface cleaning machine 10 ( 1 ) includes a cleaning head 12 , The cleaning head 12 has a head body 14 , On the head body 14 are a first cleaning roller unit 16 and a second cleaning roller unit 18 arranged, which are spaced from each other.

In one embodiment, the first cleaning roller unit 16 and the second cleaning roller unit 18 formed in one piece, that is, the respective cleaning roller unit is formed by a one-piece cleaning roller.

It is also possible in principle that the first cleaning roller unit 16 and / or the second cleaning roller unit 18 are formed in several parts and in particular each formed in two parts.

The first cleaning roller unit 16 and the second cleaning roller unit 18 each comprise a (cylindrical) carrier 20 , on which a stocking 22 is arranged from a textile material. About the stocking 22 The surface cleaning machine works with its cleaning head 12 on a surface to be cleaned 24 ,

The first cleaning roller unit 16 is about a first axis of rotation 26 driven in rotation (during operation of the surface cleaning machine 10 ).

The second cleaning roller unit 18 is in operation about a second axis of rotation 28 driven in rotation. The first rotation axis 26 and the second axis of rotation 28 are spaced parallel to each other.

When the cleaning head 12 with the first cleaning roller unit 16 and the second cleaning roller unit 18 on a flat surface to be cleaned 24 is attached, where he is on the surface to be cleaned 24 over the first cleaning roller unit 16 and the second cleaning roller unit 18 is supported, then the first axis of rotation 26 and the second rotation axis 28 each parallel to the surface to be cleaned 24 ,

The surface cleaning machine 10 includes a drive device 30 to the respective rotary drive of the first cleaning roller unit 16 and the second cleaning roller unit 18 ,

In one embodiment, the drive device comprises 30 a first drive 32 which controls the rotational movement of the first cleaning roller unit 16 drives, and a second drive 34 , which controls the rotational movement of the second cleaning roller unit 18 drives.

The first drive 32 and the second drive 34 are formed in particular by electric motors.

The first drive 32 and the second drive 34 is in particular within the respective carrier 20 the first cleaning roller unit 16 or the second cleaning roller unit 18 positioned.

It is then provided in particular that the first cleaning roller unit 16 and the second cleaning roller unit 18 each formed in one piece.

It is envisaged that the first cleaning roller unit 16 in a first direction of rotation 36 (see 5 ) is driven in rotation, and the second cleaning roller unit 18 in a second direction of rotation 38 is driven in rotation. The first direction of rotation 36 and the second direction of rotation 38 are opposite to each other, that is, the first cleaning roller unit 16 and the second cleaning roller unit 18 are driven in opposite directions.

The first direction of rotation 36 is such that a first area 40 with which the first cleaning roller unit 16 on the surface to be cleaned 24 worked first on one area 42 which is moved between the first cleaning roller unit 16 and the second cleaning roller unit 18 on the head body 14 lies.

Accordingly, the second direction of rotation 38 such that a second area 44 with which the second cleaning roller unit 18 on the surface to be cleaned 24 worked on the area 42 on the head body 14 to be moved.

In one embodiment, the surface cleaning machine includes 10 an adjustment device (in 5 by the reference numeral 46 indicated), by means of which a rotational speed of the first cleaning roller unit 16 in the first direction of rotation 36 and / or a rotational speed of the second cleaning roller unit 18 in the second direction of rotation 38 is adjustable by an operator.

When the rotational speed of the first cleaning roller unit 16 and the second cleaning roller unit 18 is the same, then experiences the cleaning head 12 due to rotation of the cleaning roller unit 16 and 18 no feed movement.

When the rotational speed of the first cleaning roller unit 16 is greater than the rotational speed of the second cleaning roller unit 18 , then the cleaning head learns 12 a feed movement in a first feed direction 48 , When the rotational speed of the second cleaning roller unit 18 is greater than the rotational speed of the first cleaning roller unit 16 , then the cleaning head learns 12 a feed movement in a second feed direction 50 ,

The first feed direction 48 and the second feed direction 50 are opposite to each other.

The first feed direction 48 and the second feed direction 50 lie transversely and in particular at right angles to the axes of rotation 26 and 28 ,

About the appropriate setting on the adjustment 46 can be controlled whether there is no feed movement, or a feed motion in the first feed direction 48 or the second feed direction 50 ,

At the cleaning head 12 is about a joint 52 a holding bar device 54 held. About the joint 52 is the Haltestabeinrichtung 54 around a pivot axis 56 to the cleaning head 12 swiveling when the cleaning head 12 with its first cleaning roller unit 16 and the second cleaning roller unit 18 on the surface to be cleaned 24 gets up.

The pivot axis 56 lies parallel to the first axis of rotation 26 and the second rotation axis 28 ,

In the area of a proximal end 58 sits at the holding bar facility 54 a handle and in particular bow handle 60 , In the area of a distal end 62 is the holding rod device over the joint 52 to the cleaning head 12 hinged.

An operator, which on the surface to be cleaned 24 behind the cleaning head 12 gets up, can with one hand the bow handle 60 believe it. Due to the pivoting of the holding bar device 54 at the joint 52 is a swing angle of the holding bar device 54 to the surface to be cleaned 24 adjustable and an operator can in particular adjust this swivel angle according to his height.

The surface cleaning machine 10 is on the bow handle 60 Hand-held and hand-guided.

At the holding bar facility 54 is a battery device 64 arranged, which is in particular rechargeable. About the battery device 64 becomes the drive device 30 supplied with electrical energy.

It is also possible in principle for a mains connection to be arranged on the holding rod device, in which case the drive device 30 can be supplied with electrical energy via mains current.

Further, on the holding bar device 54 a tank facility 66 arranged for cleaning fluid.

From the tank facility 66 leads at least one channel through the Haltestabeinrichtung 54 through to the cleaning head 12 and therethrough to a first outlet port means 68 ( 5 ), which is the first cleaning roller unit 16 is assigned, and a second outlet port means 70 that of the second cleaning roller unit 18 assigned.

The first outlet muzzle device 68 is in relation to a height direction of the surface to be cleaned 24 away when the cleaning head 12 properly stands on this, above the first cleaning roller unit 16 arranged, and the second outlet port means 70 is above the second cleaning roller unit 18 arranged.

In one embodiment, the tank means 66 for cleaning fluid associated with a valve device which is designed so that during operation of the drive device 30 this automatically opens and thereby cleaning fluid from the tank system 66 via the first outlet orifice device 68 on the first cleaning roller unit 16 flows and over the second outlet port means 70 on the second cleaning roller unit 18 flows.

The first outlet muzzle device 68 and the second outlet port means 70 are in particular designed so that corresponding to the first cleaning roller unit 16 or the second cleaning roller unit 18 over a large length range parallel to the respective axis of rotation 26 . 28 is treated with cleaning liquid.

An area of the first cleaning roller unit 16 , which via the first outlet mouth device 68 Was treated with cleaning liquid, rotated in the first direction of rotation 36 on the surface to be cleaned 24 to and then forms when exposed to this surface to be cleaned 24 the first area 40 , The first cleaning roller unit 16 acts mechanically on the surface to be cleaned 24 , The "liquid content" causes a dissolving of dirt and thus an improved cleaning effect.

Accordingly, a moistened area of the second cleaning roller unit rotates 18 in the second direction of rotation 38 on the surface to be cleaned 24 to and forms the second area 44 with the same functionality as with the first cleaning roller unit 16 described.

Through the first cleaning roller unit 16 after exposure to the surface to be cleaned 24 Dirt in the first direction of rotation 36 taken. Through the second cleaning roller unit 18 becomes dirt in the second direction of rotation 38 taken.

It is also possible in principle that the tank device 66 on the cleaning head 12 is arranged.

At the cleaning head 12 sits the first cleaning roller unit 16 assigned a first sweeping element 72 , Furthermore, sits on the cleaning head 12 the second cleaning roller unit 18 assigned a second sweeping element 74 , The area 42 of the head body 14 is between the first sweeping element 72 and the second sweeping element 74 arranged. The first sweeping element 72 and the second sweeping element 74 lie with respect to a longitudinal direction 76 which is at a perpendicular angle to the first axis of rotation 26 and the second rotation axis 28 is located between the first cleaning roller unit 16 and the second cleaning roller unit 18 ,

The first sweeping element 72 and the second sweeping element 74 protrude above the head body 14 down to the area to be cleaned 24 out.

The task of the first sweeping element 72 is to keep coarse dirt in position, that is, to prevent it from being at a portion of the first cleaning roller unit 16 to the second cleaning roller unit 18 arrives. At the first sweeping element 72 Coarse dirt can be collected to a certain extent, which then by the rotation of the first cleaning roller unit 16 in the first direction of rotation 36 can be taken.

The second sweeping element 74 has the same task with respect to the second cleaning roller unit 18 on.

Basically, it is also possible that only the first sweeping element 72 or the second sweeping element 74 is available.

In one embodiment, the surface cleaning machine includes 10 a blower device 78 , The blower device comprises a blower and a drive motor and in particular an electric motor. This electric motor is via the battery device 64 or alternatively supplied with electrical energy via mains current. The blower device 78 generates a negative pressure to form a suction flow.

From the blower device 78 each lead channels 80 . 82 to a first intake port device 84 ( 4 ), which is the first cleaning roller unit 16 is assigned or to a second inlet mouth device 86 that of the second cleaning roller unit 18 assigned.

The corresponding suction flow allows dirt fluid from the first cleaning roller unit 16 suck off and over the first inlet mouth device 84 couple out. Furthermore, dirt fluid can be released from the second cleaning roller unit 18 aspirate and over the second intake port device 86 couple out.

The blower device 78 is a dirty fluid tank device 88 assigned, in which dirt fluid is coupled.

The dirty fluid tank device 88 can at the holding bar facility 54 in particular be arranged detachably, or may at the cleaning head 12 in particular between the first cleaning roller unit 16 and the second cleaning roller unit 18 be arranged. Such a dirty fluid tank device is in 4 with the reference number 90 indicated.

The dirty fluid tank device 88 respectively. 90 is correspondingly fluid effective with the blower device 78 connected, so that dirt fluid can be coupled into this.

In one embodiment, the first inlet orifice means 84 relative to the first direction of rotation 36 the first outlet port means 68 upstream, that is the first area 40 , which on the surface to be cleaned 24 first at the first inlet orifice 84 passed before arriving at the first outlet orifice 68 is passed. The same applies to the second cleaning roller unit 18 with her second area 44 in connection with the second intake port device 86 ,

Relative to the first direction of rotation 36 is the first intake port device 84 between the first sweeping element 72 and the first outlet port means 68 arranged.

Related to the direction of rotation 38 is the second intake port device 86 between the second sweeping element 74 and the second outlet port means 70 arranged.

In 2 is the position of the first intake port 84 and the second intake port means 86 indicated accordingly. The first intake port device 84 points in a first shot 92 of the cleaning head 12 in which the first cleaning roller unit 16 is arranged. Relative to a height direction of the surface to be cleaned 24 away when the cleaning head 12 with the first cleaning roller unit 16 and the second cleaning roller unit 18 is properly placed on the surface to be cleaned, is the first inlet orifice device 84 above the first cleaning roller unit 16 ,

The second intake port device 86 is accordingly in relation to the second cleaning roller unit 18 arranged. The second cleaning roller unit 18 sits in a second shot 94 of the cleaning head 12 , and the second intake port device 86 points into this second shot 94 ,

It can be directly dirt fluid from the first cleaning roller unit 16 or second cleaning roller unit 18 aspirate.

The first intake port device 84 and the second intake port means 86 have such a mouth length parallel to the first axis of rotation 26 or second axis of rotation 28 on, that a correspondingly large length range of the first cleaning roller unit 16 or the second cleaning roller unit 18 is sucked.

In an alternative or combined embodiment ( 3 ) is a first intake port 96 provided, which is not in the first recording 92 but in an area in front of the first cleaning roller unit 16 empties. It is thus in a sense next to the first cleaning roller unit 16 relative to the longitudinal direction 76 arranged. It is related to the first direction of rotation 36 the first cleaning roller unit 16 downstream. Through them can be thrown out dirt and especially hair, which just in the direction of the first inlet mouth device 96 be slung, vacuum.

The first intake port device 96 is fluid effective with the blower device 78 connected.

It is a correspondingly arranged second inlet opening device 98 provided, which the second cleaning roller unit 18 is assigned, and is arranged in addition to this. The first intake port device 96 is then related to the first direction of rotation 36 the first outlet port means 68 downstream. The second intake port device 98 is the second outlet port device 70 with respect to the second direction of rotation 38 downstream.

It is possible that either only the first inlet orifice device 84 and the second intake port means 86 are present, or only the first inlet orifice means 96 and the second intake port means 98 available.

It is also possible that both an inlet mouth device is provided, which in the corresponding recordings 92 . 94 and a side-by-side intake port device corresponding to the intake port devices 96 . 98 available.

In such an embodiment, a first intake port device may be defined which includes a portion corresponding to the intake port device 84 respectively. 86 and another portion corresponding to the intake port means 96 and 98 having.

All of these subregions can be fluid-effective with the blower device 78 be connected.

For example, it is also possible that only intake port devices corresponding to the intake port devices 96 and 98 , which next to the corresponding cleaning roller unit 16 and 18 are arranged, fluid effective with the blower device 78 are connected. For example, it is possible for the first cleaning roller unit to have a first inlet opening device 100 is assigned, and the second cleaning roller unit 18 a second inlet orifice means 102 is assigned, which directly into the Schmutzfluidtankeinrichtung 90 lead ( 5 ). In particular, then the first intake port device 100 and the second intake port means 102 a respective scraper 104 respectively. 106 assigned, which dirt fluid from the first cleaning roller unit 16 or the second cleaning roller unit 18 stripping, which then dirt fluid on the first inlet mouth device 96 or the second inlet mouth device 98 directly into the dirty fluid tank device 90 can be coupled, in which case in particular the first inlet orifice device 100 and the second intake port means 102 not with the blower device 78 are connected. For example, then an extraction takes place at the inlet mouth devices 96 . 98 and a direct wipe-in coupling at the inlet orifice means 100 and 102 ,

In a further embodiment ( 6 . 7 ) is a drive device 108 provided, which in particular both cleaning roller units 16 and 18 drives. The drive device 108 is formed so that there is a center drive, and accordingly, the cleaning roller units 16 . 18 formed in two parts in this embodiment.

Between a first part and a second part of the respective first cleaning roller unit 16 respectively. 18 is a coupling area 110 positioned. At this coupling region is a torque, for example via a belt device 112 transfer. The drive device 108 is in particular on a cleaning head 12 outside the first cleaning roller unit 16 and the second cleaning roller unit 18 positioned.

It is for example in the Haltestabeinrichtung 54 arranged.

About such a center drive can achieve a high Randgängigkeit.

For operation of the surface cleaning machine 10 is the cleaning head 12 on the surface to be cleaned via the first cleaning roller unit 16 and the second cleaning roller unit 18 placed. These are driven in rotation in the first direction of rotation 36 or in the second direction of rotation 38 , By a different rotational speed, a feed in the direction 48 respectively. 50 be set.

The respective cleaning roller unit 16 respectively. 18 is via cleaning fluid from the tank means at the first outlet port means 68 or the second outlet port device 70 treated with cleaning liquid. About the first area 40 the first cleaning roller unit 16 or the second area 44 the second cleaning roller unit 18 the respective rotating cleaning roller unit acts 16 respectively. 18 mechanically on the surface to be cleaned and dirt is dissolved. Moistening with cleaning fluid at the tank device supports the dirt solution.

Dirt gets through the stocking 22 the first cleaning roller unit 16 respectively. 18 recorded and in the first direction of rotation 36 or second direction of rotation 38 promoted.

Eventually accumulating coarse dirt on the first sweeping element 72 or on the second sweeping element 74 becomes in the first direction of rotation 36 or the second direction of rotation 38 taken.

Depending on the design of the cleaning head 12 becomes dirty fluid, for example, at the first inlet orifice means 84 and the second intake port means 86 over the blower device 78 is exhausted and is alternatively or additionally at the first inlet orifice means 96 or second inlet mouth device 98 aspirated.

It is also possible that at a corresponding first inlet mouth device 100 and a second intake port 102 blower-free by stripping a coupling in the Schmutzfluidtankeinrichtung 90 he follows.

In the area cleaning machine 10 are two opposing cleaning roller units 16 . 18 intended. This allows the surface to be cleaned 24 a full contact pressure regardless of the pivot position of the holding bar device 54 to the surface to be cleaned 24 to reach.

It can also be a constant distance of the sweeping elements 72 . 74 to the surface to be cleaned 24 to ensure.

Further, on a cleaning roller unit 16 respectively. 18 thrown dirt from the other cleaning roller unit 18 respectively. 16 be recorded.

Furthermore, the Schmutzfluidtankeinrichtung can be 90 between the first cleaning roller unit 16 and the second cleaning roller unit 18 position. This results in a short transport path for dirt fluid, at least for direct coupling. Furthermore, the center of gravity can be kept low and there is a low cleaning effort for the Schmutzfluidtankeinrichtung.

For the drive device 30 which are in the straps 20 is provided, there is a larger usable volume for the Schmutzfluidtankeinrichtung 90 ,

When inlet orifice devices 96 . 98 are provided, then there is a Haaraufnahme and thereby an improved cleaning result.

• - ein erstes Kehrelement 72 und/oder ein zweites Kehrelement 74, wobei die Anordnung zwischen der ersten Reinigungswalzeneinheit 16 und der zweiten Reinigungswalzeneinheit 18 bezogen auf die Längsrichtung 76 ist;
• - eine Gebläseeinrichtung 78, welche fluidwirksam mit der ersten Einlassmündungseinrichtung 84 und der zweiten Einlassmündungseinrichtung 86 und/oder mit der erste Einlassmündungseinrichtung 96 und der Einlassmündungseinrichtung 98 verbunden ist.

The following components are intended to be used alone or in combination:

• - a first sweeping element 72 and / or a second sweeping element 74 wherein the arrangement between the first cleaning roller unit 16 and the second cleaning roller unit 18 relative to the longitudinal direction 76 is;
• - a blower device 78 which fluidly with the first inlet mouth means 84 and the second intake port means 86 and / or with the first inlet orifice device 96 and the intake port means 98 connected is.

The surface cleaning machine 10 was hand-held and hand-held with the holding bar equipment 54 described. It is also possible in principle that the cleaning head itself does not have a holding rod device, but in particular is designed to be self-propelled and self-steering (by a suitable steering mechanism) as a type of wiping robot. By the respective adjustment of the rotational speed of the first cleaning roller unit 16 and the second cleaning roller unit 18 The direction of the movement can be adjusted. There is a corresponding steering device available to allow a change in direction.

In this embodiment, the dirty fluid tank means 90 , the tank facility 66 and the blower device 78 on the corresponding cleaning head 12 arranged.

LIST OF REFERENCE NUMBERS

10

Surface cleaning machine

12

cleaning head

14

head body

16

First cleaning roller unit

18

Second cleaning roller unit

20

carrier

22

trimming

24

Area to be cleaned

26

First rotation axis

28

Second rotation axis

30

driving means

32

First drive

34

Second drive

36

First direction of rotation

38

Second direction of rotation

40

First area

42

Area

44

Second area

46

adjustment

48

First feed direction

50

Second feed direction

52

joint

54

Retaining bar means

56

swivel axis

58

Proximal end

60

bow handle

62

Distal end

64

battery means

66

tank means

68

First outlet muzzle device

70

Second outlet muzzle device

72

First sweeping element

74

Second sweeping element

76

longitudinal direction

78

blower

80

channel

82

channel

84

First inlet mouth device

86

Second intake port device

88

Dirty fluid tank means

90

Dirty fluid tank means

92

First recording

94

Second shot

96

First inlet mouth device

98

Second intake port device

100

First inlet mouth device

102

Second intake port device

104

scraper

106

scraper

108

driving means

110

coupling region

112

belt means

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• WO 2010/041185 A1 [0002]
• US 7665174 B2 [0003]
• US 4173054 [0004]
• WO 2013/106762 A2 [0005]
• US 7921497 B2 [0006]
• EP 2015/073275 [0007]
• US 4875246 [0008]
• DE 202009013434 U1 [0009]
• CN 201197698 Y [0010]
• US 6026529 [0011]
• WO 2005/087075 A1 [0012]
• WO 2015/086083 A1 [0013]
• US 3789449 [0014]

Claims (29)

A surface cleaning machine comprising a cleaning head (12) having a first cleaning roller unit (16) rotationally driven in a first rotational direction (36) and a second cleaning roller unit (18) rotationally driven in a second rotational direction (38) wherein the second rotational direction (38) is opposite to the first rotational direction (36), characterized in that the first cleaning roller unit (16) is associated with a first sweeping element (72) which is interposed between the first cleaning roller unit (16) and the second cleaning roller unit (16). 18) is positioned and / or the second cleaning roller unit (18) is associated with a second sweeping element (74). Surface cleaning machine after Claim 1 characterized in that a portion (40) of the first cleaning roller unit (16) which has acted on a surface (24) to be cleaned moves toward the first sweeping element (72) in the first direction of rotation (36) and at the first Sweeping element (72) lying dirt from the surface to be cleaned (14) away with the first cleaning roller unit (16) is entrained. Surface cleaning machine after Claim 1 or 2 characterized in that a portion (44) of the second cleaning roller unit (18) which has acted on a surface (24) to be cleaned moves towards the second sweeping element (74) in the second direction of rotation (38) and at the second Sweeping element (74) lying dirt from the surface to be cleaned (24) away with the second cleaning roller unit (18) is entrained. Surface cleaning machine according to one of the preceding claims, characterized in that the first sweeping element (72) with respect to the first direction of rotation (36) between a region (40) of the first cleaning roller unit (16) with which this on the surface to be cleaned (24 ), and a first dirty fluid inlet orifice means (84) is disposed by the first cleaning roller unit (16). Surface cleaning machine according to one of the preceding claims, characterized in that the second sweeping element (74) with respect to the second direction of rotation (38) between a region (44) of the second cleaning roller unit (18) with which this on the surface to be cleaned (24 ), and a second dirty fluid inlet mouth means (86) is arranged by the second cleaning roller unit (18). Surface cleaning machine according to one of the preceding claims, characterized in that the first sweeping element (72) and the second sweeping element (74) facing each other. Surface cleaning machine according to one of the preceding claims, characterized by a dirt fluid tank device (88; 90) for receiving dirt fluid. Surface cleaning machine after Claim 7 , characterized in that the Schmutzfluidtankeinrichtung (90) at least partially between the first cleaning roller unit (16) and the second cleaning roller unit (18) is arranged and in particular at least with a partial area between the first sweeping element (72) and the second sweeping element (74) is arranged , Surface cleaning machine according to the preamble of Claim 1 or one of the preceding claims, characterized in that a first inlet mouth means (84, 96) and a second inlet mouth means (86, 98) are arranged on the cleaning head (12), the first inlet mouth means (84, 96) of the first cleaning roller unit (16 and that the second inlet orifice means (86; 98) is associated with the second cleaning roller unit (18) and that a fan means (78) is in fluid communication with at least a portion of the first inlet orifice means (84; 96) and / or at least one portion the second intake port means (86; 98). Surface cleaning machine after Claim 9 , characterized in that the blower device (78) is arranged on the cleaning head (12) or on a holding rod device (54), on which the cleaning head (12) sits, is arranged. Surface cleaning machine after Claim 9 or 10 characterized in that the first inlet orifice means (84; 96) is fluidly coupled to at least one first channel (80) providing fluid communication with the blower means (78), and / or the second inlet orifice means (86; 98) fluidly connected to at least one second channel (82) which provides fluid communication with the fan means (78). Surface cleaning machine according to one of the preceding claims, characterized in that a first inlet mouth means (84) and / or a second inlet mouth means (86) are arranged and formed at least with a partial area such that from the associated cleaning roller unit (16, 18) directly dirt fluid is deductible. Surface cleaning machine after Claim 12 characterized in that the first inlet orifice means (84) is disposed at least in a portion relative to the first rotational direction (36) between a first sweeping element (72) and a first cleaning liquid outlet orifice (68) and / or the second inlet orifice means (86 ) is arranged at least in a partial area with respect to the second rotational direction (38) between a second sweeping element (74) and a second outlet mouth device (70) for cleaning fluid. Surface cleaning machine after Claim 12 or 13 characterized in that the first inlet orifice means (84) is upstream of a first outlet orifice means (68) for cleaning liquid and / or that the second inlet orifice means (86) is upstream of a second outlet orifice means (70) relative to the second rotation direction. upstream of cleaning liquid. Surface cleaning machine according to one of Claims 12 to 14 , characterized in that the first inlet orifice device (84) opens at least in a partial area into a receptacle (92) of the cleaning head (12) for the first cleaning roller unit (16) and / or that the second inlet orifice device (86) at least in a partial area into one Receiving (94) of the cleaning head (12) for the second cleaning roller unit (18) opens. Surface cleaning machine according to one of Claims 12 to 15 characterized in that the first inlet orifice means (100) having a portion or portion located on the first cleaning roller unit (16) leads into a dirty fluid tank means (90) disposed on the cleaning head (12) and in particular a first scraper (16). 104) is provided for dirty fluid from the first cleaning roller unit (16) and / or that the second inlet mouth means (102) with a region or partial area lying on the second cleaning roller unit (18) leads into a dirty fluid tank means (90) which is located on the Cleaning head is arranged, and in particular a second scraper (106) is provided for dirty fluid from the second cleaning roller unit (18). Surface cleaning machine according to one of the preceding claims, characterized in that a first inlet mouth device (96) is arranged at least in a partial area relative to the first rotational direction (36) next to the first cleaning roller unit (16) and / or that a second inlet mouth device (98) at least in a partial area with respect to the second direction of rotation (38) adjacent to the second cleaning roller unit (18) is arranged. Surface cleaning machine after Claim 17 , characterized in that the first inlet opening device (96) opens into a space in front of the first cleaning roller unit (16) at least in one partial area and / or that the second inlet opening device (98) at least in a partial area into a space in front of the second cleaning roller unit (18). empties. Surface cleaning machine after Claim 17 or 18 Characterized in that the first inlet port means (96) based at least in a partial region on the first rotational direction (36), a first outlet orifice (68) for cleaning fluid to the first cleaning roller unit (16) is arranged downstream and / or that the second inlet port means (98) at least in a partial region with respect to the second rotational direction (38) of a second outlet mouth means (70) for cleaning liquid for the second cleaning roller unit (18) is arranged downstream. Surface cleaning machine according to one of Claims 17 to 19 characterized in that an area or portion of the first inlet orifice means (96) adjacent to the first cleaning roller unit (16) is fluidically connected to the fan means (78) and / or that a portion of the second inlet orifice means (98), which is adjacent to the second cleaning roller unit (18) is fluidly connected to the fan means (78). Surface cleaning machine according to one of Claims 9 to 20 , characterized in that for the first cleaning roller unit (16) both a stripping of dirty fluid and its coupling in a Schmutzfluidtankeinrichtung (90) is provided as well as a suction of dirt fluid through the fan means (78) and / or that for the second cleaning roller unit (18 ) both a stripping of dirt fluid and coupling into a Schmutzfluidtankeinrichtung (90) is provided as well as a suction of dirt fluid through the blower device (76). Surface cleaning machine according to one of the preceding claims, characterized in that a drive device (30; 108) for the first cleaning roller unit (16) and the second cleaning roller unit (18) is arranged on the cleaning head (12) or coupled to the cleaning head (12) is. Surface cleaning machine according to one of the preceding claims, characterized in that a common drive (108) for the first cleaning roller unit (16) and the second cleaning roller unit (18) is provided. Surface cleaning machine according to one of the preceding claims, characterized by a center drive for the first cleaning roller unit (16) and / or the second cleaning roller unit (18). Surface cleaning machine according to one of the preceding claims, characterized in that the first cleaning roller unit (16) and / or the second cleaning roller unit (18) are formed in several parts and in particular in two parts. Surface cleaning machine according to one of the preceding claims, characterized in that the cleaning head is designed to be self-propelled and self-steering. Surface cleaning machine according to one of Claims 1 to 25 , characterized in that a holding rod device (54) pivotally holds the cleaning head (12), and in particular that the surface cleaning machine is hand-held or hand-operated operable. Surface cleaning machine according to one of the preceding claims, characterized by an adjusting device (46), by means of which a rotational speed of the first cleaning roller unit (16) and / or the second cleaning roller unit (18) is adjustable. A method of operating a surface cleaning machine according to one of the preceding claims, which is mounted with a first cleaning roller unit (16) and a second cleaning roller unit (18) on a surface to be cleaned (24), wherein the first cleaning roller unit (16) and the second cleaning roller unit (18) are rotationally driven with a first rotational direction (36) for the first cleaning roller unit (16) and a second rotational direction (38) for the second cleaning roller unit (18), wherein the first rotational direction (36) and the second rotational direction (38) to each other and wherein the first cleaning roller unit (16) is associated with a first sweeping element (72) and / or the second cleaning roller unit (18) has a second sweeping element (74), wherein a first region (40) of the first cleaning roller unit (16) , which has touched the surface to be cleaned (24), in the first direction of rotation (36) the first sweeping element (72) moves and then moves to a first inlet mouth device (84), and / or a second region (44) of the second cleaning roller unit (18) which has acted on the surface (24) to be cleaned, in the second rotational direction (38) on the second sweeping element (74) moves, and then moves to a second inlet mouth means (86).

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