EP4003118B1 - Floor cleaning machine - Google Patents

Description

The invention relates to a floor cleaning machine, comprising a floor head, at least one cleaning roller, which is arranged on the floor head, a tank device, which is arranged on the floor head, and a movable stand device, which is arranged on the floor head, with the floor cleaning machine being in a parked position Floor head is supported by the stand means to a base in such a way that the at least one cleaning roller is spaced from the base.

In the brochure BR 30/4 C Alfred Kärcher Vertriebs-GmbH cleaning systems from January 2009, a hand-held floor cleaning machine is described in which a parking position with unlocking is provided. A brush relief roller is provided which automatically extends when the machine is parked. This protects the brush roller from pressure points.

The US 2011/0219555 A1 discloses a cleaning head.

The WO 2018/001754 A1 discloses a wet cleaning device with a rotatable cleaning roller and a wiper device that can be displaced onto the cleaning roller.

Floor cleaning machine are also from the WO 2015/086083 A1 , the WO 2016/058956 A1 , the WO 2016/058856 A1 , the WO 2017/063663 A1 , the WO 2016/058879 A1 , the WO 2016/058901 A1 , the WO 2016/58907 A1 , the WO 2017/152970 A1 , the WO 2017/152973 A1 , the WO 2017/153450 A1 , the WO 2019/029821 A1 , the WO 2018/162092 A1 , the WO 2018/162091 A1 known.

The object of the invention is to provide a floor cleaning machine of the type mentioned at the outset which, with a compact design, delivers optimized cleaning results.

In the case of the floor cleaning machine mentioned at the outset, this object is achieved according to the invention in that the tank device has at least one continuous recess through which a foot of the foot device is inserted at least in the parking position.

In the parking position, the pedestal device makes it possible for the cleaning roller to be lifted off a base. As a result, there are no "stationary plates" on the cleaning roller. The cleaning liquid on the cleaning roller does not come into contact with the substrate and damage to the substrate is avoided.

Furthermore, better drying of the cleaning roller can be achieved.

Due to the fact that the at least one foot extends through the tank cleaning, no compromises have to be made with regard to the external dimensions of the floor head due to the foot device. It is thus possible, for example, to achieve cleaning close to the edge in that the cleaning roller extends at least approximately to the transverse sides of the floor head.

Furthermore, the floor head can be designed with a relatively low height, so that it is possible to drive under obstacles such as furniture or the like.

Furthermore, an actuating mechanism for the stand device can be arranged in a simple manner on the floor head, with the floor head being able to be realized in a compact manner.

The solution according to the invention can be used in a hand-held floor cleaning machine in a simple manner.

In principle, it is also possible for the solution according to the invention to be used, for example, in a self-steering and self-controlling floor cleaning machine such as a cleaning robot (and in particular a wiping robot).

The at least one continuous recess goes through between an upper side of the tank device and an underside. It creates a connection between the top and bottom and is used at least temporarily to accommodate the at least one base.

The at least one recess can be formed like a tunnel and can be closed on all sides except for the top and bottom. It can, for example, also be designed as a cutout which is open on one side (transverse side) or is open on several (transverse) sides and can be located, for example, at a corner of the tank device.

The tank device at the bottom head is, for example, a dirty fluid tank device, a tank device for cleaning liquid or a tank device with at least one holding chamber for dirty fluid and at least one holding chamber for cleaning liquid.

The pedestal device is arranged and designed in particular mirror-symmetrically to a center of gravity of the floor cleaning machine. As a result, there is no tilting moment in the parking position.

• der erste Standfuß und der zweite Standfuß sind in einer Abstandsrichtung zueinander beabstandet, welche parallel zu einer Schwenkachse der Halteeinrichtung zu dem Bodenkopf ist;
• der erste Standfuß und der zweite Standfuß sind in einer Abstandsrichtung zueinander beabstandet, welche parallel zu einer Rotationsachse der mindestens einen Reinigungswalze ist;
• die Tankeinrichtung ist in einer Abnahmerichtung abnehmbar von dem Bodenkopf und der erste Standfuß und der zweite Standfuß sind in einer Abstandsrichtung beabstandet, welche quer zu der Abnahmerichtung ist.

It is favorable if the base device has at least a first base and a second base, spaced apart from the first base, with at least one of the following:

• the first foot and the second foot are spaced from each other in a spacing direction which is parallel to a pivot axis of the holding device to the floor head;
• the first stand and the second stand are spaced apart from one another in a spacing direction that is parallel to an axis of rotation of the at least one cleaning roller;
• the tank device is detachable from the bottom head in a detaching direction, and the first foot and the second foot are spaced in a spacing direction that is transverse to the detaching direction.

At least two spaced feet result in a secure footing of the floor cleaning machine in the parking position. A compact construction of the floor head results. The tank device can be easily removed for emptying or cleaning.

It is particularly advantageous if a support area of the floor head for a base is arranged or formed on the floor head or the tank device, which is at a distance from the at least one cleaning roller, with the support area being arranged in particular at a rear end of the floor head or the tank device, which faces away from the at least one cleaning roller. The floor head and thus the floor cleaning machine can be supported in the parking position via this support area. The cleaning roller can be lifted by the stand foot device, with support being retained on the support area. The support area can also be designed in such a way that the floor head and thus the floor cleaning machine are supported on the base via this during cleaning operation.

It is then favorable if the support area has at least one sliding element or at least one roller element in order to achieve optimized support or feasibility.

It is also favorable if the at least one foot is spaced apart from the support area and is arranged in particular between the at least one cleaning roller and the support area in relation to a longitudinal axis of the floor head. The at least one cleaning roller can thus be lifted off the base in a simple manner by means of a support on the support area, in that the stand device is moved accordingly.

In one embodiment, in a cleaning operation, the floor head is supported on a base via the support area and the at least one cleaning roller. This results in an optimized cleaning result with a simple mode of operation.

Furthermore, it is favorable if, in the parking position, the floor head is supported on a base via the support area and the at least one foot, with the at least one cleaning roller being lifted off the base. This results in optimized protection of the base and also the at least one cleaning roller.

In one embodiment, the floor cleaning machine is hand-held with a holding device for guiding by an operator.

A simple mode of operation results if the holding device is articulated on the operating head so that it can be pivoted about a pivot axis. A hand-guided floor cleaning machine can thus be implemented in a particularly simple manner. Due to the pivotability of the holding device, it can be adapted to the size of the operator and, for example, wiping movements can be carried out or obstacles can be driven under and the like. Furthermore, the pivotability of the holding device can be used to bring the stand device into and out of the parking position.

• an dem Halter ist die Tankeinrichtung gehalten und insbesondere abnehmbar gehalten;
• die mindestens eine Reinigungswalze ist an dem Halter gehalten;
• eine Antriebseinrichtung für die mindestens eine Reinigungswalze ist an dem Halter gehalten;
• eine Halteeinrichtung für einen Bediener ist schwenkbar an dem Halter gelagert;
• die Standfußeinrichtung ist beweglich und insbesondere schwenkbar an dem Halter gelagert;
• der Halter liegt in einer Höhenrichtung des Bodenkopfes zwischen einer Schwenkachse der Standfußeinrichtung und der Tankeinrichtung;
• der Halter ist oder umfasst eine Halteplatte.

In one embodiment, the bottom head has a holder with at least one of the following:

• the tank device is held on the holder and, in particular, held in a detachable manner;
• the at least one cleaning roller is held on the holder;
• a drive device for the at least one cleaning roller is held on the holder;
• a holding device for an operator is pivotally mounted on the holder;
• the stand device is movably and in particular pivotably mounted on the holder;
• the holder lies in a vertical direction of the floor head between a pivot axis of the base device and the tank device;
• the holder is or comprises a holding plate.

The corresponding holder results in a compact structure of the floor head. This can be realized with a low height and thus good underpassability. The number of components can be kept low. The bottom head can be formed with a relatively low weight. It results in good operability.

It is particularly advantageous if the stand device is pivotably mounted on the floor head. This results in a structurally simple and compact construction of the floor head, with the parking position being able to be reached in a simple manner and the parking position being canceled in a simple manner.

In particular, it is provided that in relation to a vertical direction of the floor head away from an underside of the floor head, with the underside facing the base in the parking position, a part of the stand device is arranged above the tank device. This results in a simple, compact structure. In the end, only the at least one foot has to "penetrate" the tank device via the corresponding recess.

• eine Schwenkachse der Standfußeinrichtung ist parallel zu einer Schwenkachse einer Halteeinrichtung an dem Bodenkopf;
• die Schwenkachse der Standfußeinrichtung und die Schwenkachse der Halteeinrichtung sind parallel beabstandet zueinander;
• die Schwenkachse der Standfußeinrichtung ist parallel zu einer Rotationsachse der mindestens einen Reinigungswalze;
• die Schwenkachse der Standfußeinrichtung ist bezogen auf eine Längsachse des Bodenkopfs zwischen der Schwenkachse der Halteeinrichtung an einem hinteren Ende des Bodenkopfs positioniert;
• die Schwenkachse der Standfußeinrichtung liegt bezogen auf eine Höhenrichtung des Bodenkopfs von einer Unterseite des Bodenkopfs weg, wobei in der Parkposition die Unterseite der Unterlage zugewandt ist, niedriger als die Schwenkachse der Halteeinrichtung.

It is favorable if at least one of the following is provided:

• a pivot axis of the base device is parallel to a pivot axis of a holding device on the floor head;
• the pivot axis of the base device and the pivot axis of the holding device are spaced parallel to one another;
• the pivot axis of the stand device is parallel to an axis of rotation of the at least one cleaning roller;
• the pivot axis of the base device is positioned between the pivot axis of the holding device at a rear end of the floor head in relation to a longitudinal axis of the floor head;
• the pivot axis of the base device is located away from an underside of the floor head in relation to a vertical direction of the floor head, with the underside facing the base in the parking position lower than the pivot axis of the holding device.

A compact construction of the floor head results. In particular, its height dimensions can be kept small. The base device can be integrated into the floor head in an optimized way. In the parking position results in a secure stand with lifted at least one cleaning roller.

• an dem Bügel sitzen beabstandet mindestens ein erster Arm und ein zweiter Arm;
• an dem ersten Arm ist mindestens ein erster Standfuß angeordnet;
• an dem zweiten Arm ist mindestens ein zweiter Standfuß angeordnet;
• der erste Arm und/oder der zweite Arm weisen in eine Richtung zu der mindestens einen Reinigungswalze;
• der Bügel mit dem ersten Arm und dem zweiten Arm umgibt gabelförmig einen Bereich, an dem eine Antriebseinrichtung für die mindestens eine Reinigungswalze an dem Bodenkopf sitzt;
• der Bügel und insbesondere auch der erste Arm und der zweite Arm sind in einer Höhenrichtung des Bodenkopfs oberhalb der Tankeinrichtung positioniert.

It is favorable if the base device has a bracket, which is pivotably linked to the floor head, with at least one of the following:

• at least a first arm and a second arm are spaced on the bracket;
• at least one first foot is arranged on the first arm;
• at least one second stand is arranged on the second arm;
• the first arm and/or the second arm point in a direction towards the at least one cleaning roller;
• the bracket with the first arm and the second arm surrounds an area in the shape of a fork, on which a drive device for the at least one cleaning roller is seated on the floor head;
• the bracket and in particular also the first arm and the second arm are positioned above the tank device in a vertical direction of the floor head.

The base device can thus be integrated into the floor head in an optimized manner. Compact dimensions can be realized for the floor head. In the parking position, there is a secure footing with at least one cleaning roller lifted off. The measures to change the tank device due to the base device can be limited to the recess assigned to the at least one base.

Furthermore, it is only favorable if at least one tab is arranged on the bracket, which can be acted on by an operator, in particular via a holding device. A torque can be coupled into the stand foot device via the tab, in order in particular to bring it into the parking position.

• die mindestens eine Lasche ist zwischen dem ersten Arm und dem zweiten Arm angeordnet;
• die mindestens eine Lasche ist beabstandet zum ersten Arm und/oder dem zweiten Arm;
• die mindestens eine Lasche weist von dem Bügel weg in Richtung der mindestens einen Reinigungswalze;
• die mindestens eine Lasche ist symmetrisch zu Querseiten des Bodenkopfs angeordnet;
• die mindestens eine Lasche ist in einer Höhenrichtung des Bodenkopfs oberhalb einer Antriebseinrichtung für die mindestens eine Reinigungswalze angeordnet;
• die mindestens eine Lasche ist in einem Bereich eines Gelenks angeordnet, über welches eine Halteeinrichtung schwenkbar an dem Bodenkopf angeordnet ist;
• das Gelenk für die Halteeinrichtung umfasst einen ersten Gelenkfuß und einen zweiten Gelenkfuß, welche beabstandet zu dem ersten Gelenkfuß ist, wobei die mindestens eine Lasche zwischen dem ersten Gelenkfuß und dem zweiten Gelenkfuß positioniert ist.

It is favorable if at least one of the following is provided:

• the at least one tab is disposed between the first arm and the second arm;
• the at least one tab is spaced from the first arm and/or the second arm;
• the at least one tab faces away from the bracket toward the at least one cleaning roller;
• the at least one flap is arranged symmetrically to lateral sides of the bottom head;
• the at least one tab is arranged in a vertical direction of the floor head above a drive device for the at least one cleaning roller;
• the at least one bracket is arranged in a region of a joint, via which a holding device is arranged pivotably on the floor head;
• the joint for the holding device comprises a first joint foot and a second joint foot which is spaced apart from the first joint foot, the at least one tab being positioned between the first joint foot and the second joint foot.

The design and arrangement of the at least one tab results in a compact construction of the floor head. The base device can be integrated into the floor head in an optimized way.

In one embodiment, the holding device is coupled to at least one cam, which acts on the at least one tab in a specific pivoting range of the holding device to the floor head and causes a pivoting movement of the base device via a pivoting movement of the holding device. The parking position can thus be reached in a simple, automated manner by a pivoting movement of the holding device towards the floor head.

It is then also favorable if at least one rib sits on the holding device, which is separate from the at least one cam, and acts on the at least one cam in a specific pivoting range of the holding device relative to the bottom head and causes a movement of the at least one cam to act causing at least one tab. In this way, an action of the holding device can only be achieved in a specific pivoting angle range in the vicinity of a parking position of the holding device relative to the floor head. It is not necessary for the at least one cam to be entrained by the holding device for all pivoting angles. In particular, this results in a compact construction of the bottom head on a corresponding joint of the holding device.

In one embodiment, the at least one rib is arranged on a shaft which is non-rotatably connected to the holding device. In particular, the holding device is mounted pivotably on the floor head via the shaft.

It is also favorable if the at least one cam can be rotated with respect to the holding device and, in particular, is arranged so that it can be rotated on a shaft of the holding device. It can be positioned outside of a certain pivot angle range of the cam so that it with respect to the Stand device is "loose" and exerts no significant force. Only when a specific position of the holding device relative to the floor head has been reached (in the vicinity of a parked position up to the parked position) does a corresponding action take place in order to reach the parked position.

It is favorable if an axis of rotation of the at least one cam in relation to the holding device and a pivot axis of the holding device in relation to the bottom head coincide. This results in a simple structural design with the possibility of making the floor head compact.

It is particularly advantageous if the at least one rib only acts on the at least one cam in a single pivoting direction of the holding device. In this way, an effect can be achieved during the transition to a parking position of the holding device relative to the floor head. In a normal cleaning operation, there is then in particular no effect. This specific pivoting direction of the holding device is preferably towards the at least one cleaning roller.

In one embodiment, a spring device is provided, the spring force of which endeavors to move the stand device from the parking position into a non-supporting position. The non-support position is intended in particular for a cleaning operation. The base device can then be moved back by the spring force of the spring device in order to bring the cleaning roller into contact with the substrate. In particular, an automatic reset takes place.

In a structurally simple embodiment, the spring device is designed as a tension spring device which tends to pull the at least one foot device upwards in a vertical direction of the floor head (in particular away from the tank device or from the base). As a result, the spring device can be easily integrated into the floor head. Compact dimensions for the floor head can be achieved.

In one embodiment it is provided that in the parking position a holding device for an operator is in a fixed pivoted position relative to the floor head. In particular, the parking position can then also be fixed via the fixed pivoting position of the holding device relative to the floor head.

In one embodiment, in the fixed pivoting position, the holding device is fixed in a non-positive and/or positive manner with respect to the base head. In this way, the holding device can be easily “dropped down”.

In the case of a structurally simple embodiment, there is in particular a non-positive fixation. A holding magnet device is provided for fixing a specific pivoting position of the holding device to the floor head.

• die Haltemagneteinrichtung umfasst mindestens einen Haltemagneten und ein dem mindestens einen Haltemagneten zugeordnetes Gegenelement;
• der mindestens eine Haltemagnet ist in einem Gehäuse des Bodenkopfs angeordnet;
• das mindestens eine Gegenelement ist in dem Gehäuse des Bodenkopfs angeordnet;
• der mindestens eine Haltemagnet ist drehfest mit der Halteeinrichtung verbunden und das zugeordnete mindestens eine Gegenelement ist bewegungsfest an dem Bodenkopf angeordnet, oder das mindestens eine Gegenelement ist drehfest mit der Halteeinrichtung verbunden und der zugeordnete mindestens eine Haltemagnet ist bewegungsfest an dem Bodenkopf angeordnet;
• das mindestens eine Gegenelement, wenn es bewegungsfest an dem Bodenkopf sitzt, ist als Anschlag für die Halteeinrichtung und insbesondere für den zugeordneten mindestens einen Haltemagneten ausgebildet, oder der mindestens eine Haltemagnet, wenn er bewegungsfest am Bodenkopf sitzt, ist als Anschlag für die Halteeinrichtung und insbesondere für das zugeordnete mindestens eine Gegenelement ausgebildet;
• der mindestens eine Haltemagnet oder das mindestens eine Gegenelement sitzt an einem Kipphebel der Halteeinrichtung, wobei der Kipphebel in einem Gehäuse des Bodenkopfs über die Halteeinrichtung schwenkbar angeordnet ist.

It is favorable if at least one of the following is provided:

• the holding magnet device comprises at least one holding magnet and a counter-element assigned to the at least one holding magnet;
• the at least one holding magnet is arranged in a housing of the bottom head;
• the at least one counter element is arranged in the housing of the bottom head;
• the at least one holding magnet is non-rotatably connected to the holding device and the associated at least one counter-element is arranged immovably on the base head, or the at least one counter-element is non-rotatably connected to the holding device and the associated at least one holding magnet is arranged immovably on the base head;
• the at least one counter-element, if it is fixed on the base head, is designed as a stop for the holding device and in particular for the associated at least one holding magnet, or the at least one holding magnet, if it is fixed on the base head, is designed as a stop for the holding device and in particular designed for the associated at least one counter-element;
• the at least one holding magnet or the at least one counter-element is seated on a rocker arm of the holding device, the rocker arm being pivotably arranged in a housing of the floor head via the holding device.

The at least one counter-element is in particular a metal plate which interacts with the associated at least one holding magnet in order to achieve a non-positive fixation.

By arranging the at least one holding magnet and/or the at least one counter element in the housing, they can be accommodated in a protected manner. The floor head can be designed with a low height, and the result is good accessibility under furniture and the like.

By means of a pivotable arrangement of the at least one holding magnet or the at least one counter-element with the holding device, a non-positive fixation of the parking position can be achieved in a simple manner.

The at least one counter-element (or correspondingly the at least one holding magnet) can also be designed for a stop. For example, the magnetic force of the holding device in the parking position prevents the holding device from falling back. The stop limits a maximum pivotability of the holding device to the floor head.

In one embodiment, the at least one holding magnet or the at least one counter-element is arranged on a rocker arm of the holding device; the rocker arm is movable in a housing of the bottom head. In this way, the parking position can be secured in a simple manner using a magnetic force. Furthermore, a stop can be provided in a simple manner. The height of the floor head can be kept low in order to achieve good accessibility.

It is particularly advantageous if, by pivoting a holding device for an operator into a fixed pivoted position in relation to the floor head, the stand device is automatically brought into the parking position, and in particular when the floor head is supported on a base, the at least one cleaning roller is lifted from the base in the process. This results in easy operability for a user.

In one embodiment, the holding device can rotate relative to the base head, with an axis of rotation being at least approximately parallel to a longitudinal axis of the holding device. This results in expanded operating options; a handle for guiding the floor cleaning machine can then be rotated on the floor head. The holding device can be rotated relative to the bottom head (in addition to being pivotable) at least in a partial angular range. The rotational mobility of the holding device on the base head is realized, for example, by a corresponding articulation of the holding device on the base head (in particular, the holding device can then be rotated as a whole relative to the base head), or the holding device is designed in several parts and a first part of the holding device is connected to a second part the holding device can be rotated.

It is then advantageous if a form-fitting device is provided, which blocks rotation of the holding device about the axis of rotation when the floor cleaning machine is in the parked position. As a result, the holding device can be fixed relative to the floor head in the parking position in a simple manner.

In one embodiment, a shield that can be moved with the holding device is arranged on the floor head, with a first positive-locking element being arranged on the holding device and a second positive-locking element cooperating with the first positive-locking element being arranged on the shield, and with the first positive-locking element and the second positive-locking element being in the parking position Positive engagement can be brought. In this way, the parking position can be secured in a simple manner.

In one embodiment, a spacer is provided which, outside of the parking position, positions the sign relative to the holding device in such a way that the first positive-locking element and the second positive-locking element are not in positive-locking engagement. As a result, the holding device can be rotated about the axis of rotation outside of the parking position.

In one embodiment, the spacer is or includes a spring-loaded pin. In the parking position in particular, such a force can then be exerted via the shield on the pin that it no longer fulfills the spacer function and a form-fitting engagement between the first form-fitting element and the second form-fitting element is made possible.

In a structurally simple embodiment, the sign is assigned a track guide, on which a curved partial area of the sign is guided. It is thus possible to rotate the holding device about the axis of rotation outside of the parked position, and in the parked position a form-fitting engagement for fixing the parked position can be achieved by appropriately positioning the shield.

In particular, outside of the parking position, the track guide acts as a spacer for the sign to the holding device. A form-fitting engagement can thus be prevented outside of the parking position.

It is particularly advantageous if the web guide is arranged on a movable cam. The movable cam acts in particular on the base device in order to position one or more bases accordingly in the parked position. By arranging the web guide on the cam, it can be achieved that when the holding device is transferred into the parking position, the shield is automatically positioned so that the form-fitting connection can then be achieved again in the parking position.

It is then also favorable if a stop for the shield is arranged on the floor head, which stop acts on the shield in the parking position and causes a form-fitting connection with the holding device. As a result, when the floor cleaning machine moves into the parked position, both the parked position of the stand foot device can be reached and the holding device can be fixed in a form-fitting manner with respect to the floor head with regard to the rotatability of the holding device with respect to the floor head in relation to an axis of rotation which is at least approximately parallel to a longitudinal axis of the holding device.

In a structurally simple embodiment, the tank device has a recess in which, in particular, a partial area of a drive device for the at least one cleaning roller is immersed. This results in a compact construction of the floor head. In particular, its height dimensions can be kept small.

In one embodiment, the at least one cleaning roller is designed in two parts and a central drive is provided. It can thereby achieve a near-edge cleaning.

It is particularly advantageous if a tank device for cleaning liquid is provided, which is arranged on the holding device or on the floor head, and in particular a supply device for cleaning liquid from the tank device for cleaning liquid to the at least a cleaning roller is provided. A wet cleaning device can be realized in this way. The at least one cleaning roller can be moistened and dirt can thus be better detached from the substrate to be cleaned.

The cleaning liquid is, in particular, water with or without the addition of a surfactant, for example.

In one embodiment, the tank device is at least partially a dirty fluid tank device, which is arranged on the floor head. It can absorb dirt fluid directly from the at least one cleaning roller. In particular, there is then no need to provide for a suction system for dirty fluid.

It is favorable if a stripping device is provided for stripping dirty fluid from the at least one cleaning roller and coupling it into the dirty fluid tank device. An optimized cleaning result can thus be achieved with a compact and constructively simple structure of the floor cleaning machine.

In particular, the at least one cleaning roller has a textile edging, and preferably a scraper of a wiping device is immersed in the textile edging. It is related to the WO 2015/086083 A1 referred to, to which reference is expressly made.

The object mentioned at the outset is also achieved according to the invention in that a holding device is pivoted to the bottom head, at least one rib is connected in a rotationally fixed manner to the holding device, that at least one cam is provided which can be rotated with respect to the holding device and which is separate from the at least a rib is that in a specific pivoting position range of the holding device relative to the bottom head, the at least one rib acts on the at least one cam and causes a rotational movement of the at least one cam, and that the at least one cam is coupled to the base device and in the specific swing position range of the holding device to the floor head, a movement of the base device can be actuated via the at least one cam and the base device can be brought into the parking position.

The mechanical chain (1) at least one rib, (2) at least one cam, (3) base device allows a movement of the base device to be achieved in a simple manner via a pivoting movement of the holding device. However, there does not have to be a permanent coupling for this, so that the at least one rib does not act on the at least one cam outside of the specific swivel angle range. This then does not have to be carried along outside of the specific pivoting angle range either, and the result is a compact construction of the corresponding floor head.

It is particularly advantageous if the floor head has a first transverse side and a second transverse side, with the at least one cleaning roller in particular extending at least approximately to the first transverse side and/or to the second transverse side, and that the at least one foot is opposite the first transverse side and the second transverse side is set back. The extension of the at least one cleaning roller at least approximately to the corresponding transverse side means that it is set back at most over a range of 5% based on the total length of the cleaning roller (in a width direction between the transverse sides). It can thereby achieve a near-edge cleaning. The base device with the at least one base does not protrude beyond a transverse side, but is set back or is at most on the transverse side. This results in a simple training. The at least one recess can be located as a cutout on the corresponding transverse side, or spaced apart from it (as a "tunnel").

Figur 1

ein Ausführungsbeispiel einer handgeführten Bodenreinigungsmaschine in einer Parkposition;

Figur 2

einen Bodenkopf der Bodenreinigungsmaschine gemäß Figur 1 in der Parkposition;

Figur 3

eine Schnittansicht durch den Bodenkopf gemäß Figur 2 in der Parkposition;

Figur 4

eine perspektivische Teildarstellung des Bodenkopfes gemäß Figur 2 (ohne Abdeckung) in der Parkposition;

Figur 5

den Bodenkopf gemäß Figur 2 in einem Reinigungsbetrieb (außerhalb der Parkposition);

Figur 6

den Bodenkopf gemäß Figur 5 im Reinigungsbetrieb in einer Schnittdarstellung;

Figur 7

den Bodenkopf gemäß Figur 5 in einer perspektivischen Teilansicht (ohne Abdeckung) in einem Reinigungsbetrieb;

Figur 8

den Bodenkopf gemäß Figur 2 bzw. Figur 5 in einer Explosionsdarstellung ohne Abdeckung;

Figur 9

eine Ansicht des Bodenkopfs von unten in der Richtung A gemäß Figur 5;

Figur 10

eine Tankeinrichtung des Bodenkopfs gemäß Figur 2 bzw. gemäß Figur 5, wobei die Tankeinrichtung geöffnet ist;

Figur 11

eine Teildarstellung eines zweiten Ausführungsbeispiels einer handgeführten Bodenreinigungsmaschine in Draufsicht außerhalb einer Parkstellung;

Figur 12

eine Schnittansicht längs der Linie 12-12 gemäß Figur 11;

Figur 13:

eine Schnittansicht längs der Linie 13-13 gemäß Figur 11;

Figur 14:

eine Schnittansicht längs der Linie 14-14 gemäß Figur 11;

Figur 15

die gleiche Darstellung wie Figur 11 in der Parkstellung;

Figur 16

eine Schnittansicht längs der Linie 16-16 gemäß Figur 15;

Figur 17

eine Schnittansicht längs der Linie 17-17 gemäß Figur 15; und

Figur 18

eine Schnittansicht längs der Linie 18-18 gemäß Figur 15.

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

figure 1

an embodiment of a hand-held floor cleaning machine in a parking position;

figure 2

according to a floor head of the floor cleaning machine figure 1 in the parking position;

figure 3

a sectional view through the bottom head according to FIG figure 2 in the parking position;

figure 4

a perspective partial view of the bottom head according to figure 2 (without cover) in the parking position;

figure 5

according to the bottom head figure 2 in a cleaning operation (outside the parking position);

figure 6

according to the bottom head figure 5 in the cleaning operation in a sectional view;

figure 7

according to the bottom head figure 5 in a perspective partial view (without cover) in a cleaning operation;

figure 8

according to the bottom head figure 2 or. figure 5 in an exploded view without cover;

figure 9

a bottom view of the bottom head in the direction A according to FIG figure 5 ;

figure 10

according to a tank device of the bottom head figure 2 or according to figure 5 , wherein the tank device is open;

figure 11

a partial representation of a second embodiment of a hand-held floor cleaning machine in plan view outside of a parking position;

figure 12

12 is a sectional view taken along line 12-12 of FIG figure 11 ;

Figure 13:

13 is a sectional view taken along line 13-13 of FIG figure 11 ;

Figure 14:

14 is a sectional view taken along line 14-14 of FIG figure 11 ;

figure 15

the same representation as figure 11 in the parking position;

figure 16

a sectional view taken along line 16-16 of FIG figure 15 ;

figure 17

a sectional view taken along line 17-17 of FIG figure 15 ; and

figure 18

a sectional view taken along line 18-18 of FIG figure 15 .

An embodiment of a floor cleaning machine according to the invention as a hand-held floor cleaning machine, which in the figure 1 shown as a whole in a side view and designated 10, comprises a bottom head 12 ( Figures 2 to 10 ).

(At least) one cleaning roller 14 is arranged on the bottom head 12 . In a cleaning operation of the hand-held floor cleaning machine 10, the floor head 12 is via the cleaning roller 14 ( Figures 5 to 7 ) is supported on a base 16 to be cleaned and acts on it. The base 16 to be cleaned is in particular a hard floor.

The floor cleaning machine 10 includes a holding device 18 ( figure 1 ). The holding device 18 is pivoted to the base head 12 via a joint 20 . A pivot axis 22 (cf. figure 4 ) the swiveling of the Holding device 18 on the bottom head 12 is transverse and in particular perpendicular to a longitudinal axis 24 (cf. figure 4 ) of the bottom head 12 oriented. The longitudinal axis 24 defines an extension of the bottom head 12 transversely to the cleaning roller 14 (and in particular transversely to an axis of rotation of the cleaning roller 14; see below).

During proper operation of the hand-held floor cleaning machine 10, when the floor head 12 is placed on the base 16 for a cleaning operation, and when the base 16 is flat, then the pivot axis 22 is at least approximately parallel to the base 16.

The floor cleaning machine 10 is hand-held. The holding device 18 is designed in such a way that an operator can guide the floor cleaning machine 10 over the base 16, with the floor head 12 being supported on the base 16, and the operator himself (at a distance from the floor head 12) standing on the base 16; the hand-held floor cleaning machine 10 is designed in particular so that it can be operated by a standing operator.

In one exemplary embodiment, the holding device 18 comprises a holding rod 26. This holding rod 26 is articulated to the base head 12 via the joint 20. FIG. The retaining rod 26 extends along a longitudinal axis 28 which is oriented transversely and in particular perpendicularly to the pivot axis 22 .

The support rod 26 is articulated (in relation to an operator) at the distal end to the base head 12 via the joint 20 . The holding device 18 has a loop handle 30 at a proximal end.

In particular, one or more operating elements such as an on/off switch and the like are arranged on or in the area of the loop handle 30 .

The holding device 18 with the holding rod 26 can be length-adjustable in the longitudinal axis 28 or can be designed to be fixed in length.

Due to the pivotable articulation of the holding device 18 via the joint 20 with the pivot axis 22, an operator who stands up on the base 16 and uses the bow handle 30 to guide the floor cleaning machine 10 can adjust the overall height of the floor cleaning machine 10 above the base 16 to his height. Furthermore, a kind of wiping movement can be carried out via a forward and backward movement. The floor cleaning machine 10 can be reached at the base 16. Furthermore, in order to be able to move the floor head 12 under furniture or the like, the overall height of the floor cleaning machine 10 can be reduced by pivoting the holding device 18 in the direction of the base 16 .

Provision can also be made for the holding device 18 to be pivotable about one or more further pivot axes relative to the base head 12 in order in particular to achieve better accessibility. For example, the holding device 18 can be pivoted relative to the base head 12 about a pivot axis which is parallel to the longitudinal axis 28 . It is related to the WO 2016/058879 A1 referred.

The floor cleaning machine 10 can be mains-operated. A mains cable with a plug is then arranged in particular on the holding device 18 and leads to a corresponding electrical load.

In one embodiment, the walk behind floor cleaning machine 10 is battery powered. A battery device 32 and in particular a rechargeable battery device 32 is arranged on the holding device 18 in a fixed or removable manner. This provides the required electrical energy when the floor cleaning machine 10 is in operation.

The hand-held floor cleaning machine 10 is designed in particular as a wet cleaning machine. Provision is made for the base 16 to be moistened directly or via the cleaning roller 14 . In one embodiment, a tank device 34 for cleaning liquid at the Holding device 18 arranged in particular removable. The tank device 34 for cleaning liquid can take up water, optionally with an addition of cleaning agent and in particular surfactant-based cleaning agent.

For this purpose, a holder 36 for the tank device 34 is provided on the holding device 18 . In one embodiment, the holder 36 is positioned closer to the base head 12 with respect to the longitudinal axis 28 than a holder 38 for the battery device 32.

A feed device 40 is provided, via which cleaning liquid can be fed from the tank device 34 to the floor head 12 and in particular to the cleaning roller 14 . A supply of cleaning liquid from the tank device 14 to the floor head 12 is driven by gravity, for example. It is also possible, for example, for a pump to be provided for the corresponding liquid delivery.

The bottom head 12 includes a holder 42 ( Figures 3 , 4 , 8th ). In the embodiment, the holder 42 is plate-shaped with an upper side 44 and an underside 46.

The bottom head 12 extends in a vertical direction 48 which is perpendicular to the longitudinal axis 24 . The upper side 44 and the lower side 46 lie transversely and at least approximately to this vertical direction 48.

A drive device 50 for the cleaning roller 14 is positioned on the upper side 44 of the holder 42 (see also figure 8 ). For this purpose, a trough-shaped receptacle 52 ( figure 8 ) educated; receptacle 52 is a recess on holder 42 which is open to top 44 . It is closed towards the underside 46 .

The drive device 50 comprises a motor and in particular an electric motor 54 which is arranged in a housing 56 . This case 56 is fixed to the holder 42 .

In one embodiment, motor 54 has a motor axis 58 oriented transverse to longitudinal axis 24 and elevation 48 . For example, the motor axis 58 is oriented parallel to the pivot axis 22 of the joint 20 .

The drive device 50 also includes a transmission device 60 which serves to transmit torque from the motor 54 to the cleaning roller 14 . In one embodiment, the transmission device 60 further comprises a reduction gear, which reduces a speed of the motor 54 .

It is envisaged, for example, that the motor 54 has a speed of the order of 3000 rpm. The reduction gear reduces the speed to a speed of approx. 600 rpm or 700 rpm. The cleaning roller 14 is rotated at this speed.

The drive assembly 50 includes a first shaft 62 and a second shaft 64. The transmission assembly 60 is torque-coupled to both the first shaft 62 and the second shaft 64 (and also torque-coupled to the motor 54).

Relative to the longitudinal axis, the first shaft 62 extends to one side and the second shaft 64 to an opposite side.

The cleaning roller 14 is designed in two parts with a first part 66 and a second part 68 (cf. figure 8 ). The first part 66 is non-rotatably mounted on the shaft 62; rotation of the shaft 62, which is driven by the motor 54, causes rotation of the first part 66 of the cleaning roller 14. Rotation of the second shaft 64 causes rotation of the second part 68 of the cleaning roller 14.

The first shaft 62 and the second shaft 64, and thus the first part 66 and the second part 68 of the cleaning roller 14 are driven synchronously. The motor 44 acts synchronously with the transmission device 60 on the first shaft 62 and the second shaft 64.

The cleaning shaft 14 with the first part 66 and the second part 68 has a single axis of rotation 70 ( figure 4 ). This axis of rotation 70 is parallel to the pivot axis 22. It is transverse and in particular perpendicular to the longitudinal axis 24. It is also transverse and in particular perpendicular to the vertical direction 48.

In one embodiment, the axis of rotation 70 is parallel to the motor axis 58.

The drive device 50 is designed as a central drive. A torque-effective coupling between the motor 54 and the cleaning roller 14 takes place in a central area 72 (cf. figure 8 ) which lies between the first shaft 62 and the second shaft 64. In particular, the central region 72 is arranged centrally on the base head 12, in relation to a first transverse side 74 and an opposite second transverse side 76 of the base head 12. A distance between the first transverse side 74 and the second transverse side 76 is transverse to the longitudinal axis 24 and transverse to the vertical direction 48 .

Floor cleaning machines with center drive for the cleaning roller 14 are, for example, in WO 2015/086083 A1 , the WO 2016/058879 A1 , the WO 2017/152970 A1 , the WO 2017/152973 A1 or the WO 2019/029821 A1 described. Express reference is made to these documents.

The cleaning roller 14 is held on the holder 42 of the bottom head 12 via the housing 56 with the shafts 62, 64. The holder 42 of the bottom head 12 has a front end 78 and an end 80 facing away from it.

During normal cleaning operation of the hand-held floor cleaning machine 10, it moves over the base 16 to be cleaned in a direction 80 ( figure 5 ). Direction 80 is a forward direction. In particular, the cleaning roller 14 is driven by the drive device 50 during operation in such a way that a rotation of the cleaning roller 14 on the base 16 for the floor cleaning machine causes propulsion in the direction 80 . This propulsion in the direction 80 leads in particular to a forward movement of the hand-held floor cleaning machine 10 in the direction 80. In figure 5 a corresponding direction of rotation 82 for the rotation of the cleaning roller 14 and the axis of rotation 70 is shown with an arrow with the reference number 82, which leads to a forward drive in the direction 80.

The cleaning roller 14 with its first part 66 and the second part 68 is held on the holder 42 in front of the front end 78 of the holder 42 .

The floor cleaning machine 10 comprises a tank device 84 which, in the embodiment shown, is a dirty fluid tank device and which is arranged on the floor head 12 so that it can be removed. The dirty fluid tank device 84 serves to hold dirty fluid which is wiped off by the cleaning roller 14 . The dirty fluid is in particular cleaning liquid loaded with dirt.

The dirty fluid tank assembly 84 is positioned on the underside 46 of the holder 42 . An underside 86 of the floor head 12 is formed on the dirty fluid tank assembly 84 .

The dirty fluid tank device 84 is removably fixed to the holder 42 and thus to the floor head 12 via a fixing device 88 .

The fixing device 88 includes, for example, foldable tabs 90 ( figure 4 ), which are arranged on the holder 42. The dirty fluid tank device 84 has lateral recesses 92 adapted to the tabs 90 (on the transverse sides 74, 76), an element of the corresponding tab 90 being able to dip into the associated recess 92 and, when the element has correspondingly dip into the recess 92, a form-fit fixing of the dirty fluid tank device 84 on the holder 42 is achieved.

The lugs 90 are designed in such a way that they can be latched and thus a corresponding fixing position of the dirty fluid tank device 84 on the floor head 12 is secured. In figure 4 such a secured position is shown.

By folding away the tab 90 and releasing the latching of the secured position, the corresponding element of the tab 90, ie the associated recesses 92, appears, and the dirty fluid tank device 84 can then be removed accordingly for emptying or cleaning.

A removal direction 94 of the dirty fluid tank device 84 from the base head 12 is transverse and in particular perpendicular to the pivot axis 22 or the axis of rotation 70.

It can be provided, for example, that the direction of decrease 94 is parallel to the direction of height 48 . It can also be at an acute angle to the elevation direction 48 (in figure 2 indicated by reference numeral 94').

In one exemplary embodiment (cf. figure 10 ) a pan portion 96 and a lid portion 98. The lid portion 98 is removable from the pan portion 96 to allow the dirty fluid tank assembly 84 to be emptied and cleaned.

The tub part 96 has a floor 100. The underside 86 of the dirty fluid tank device 84 and thus also of the floor head 12 is formed on this floor when the dirty fluid tank device 84 is seated on the floor head 12. In one embodiment, the floor 100 is substantially planar educated. A correspondingly small height of the dirty fluid tank device 84 in the vertical direction 48 can be realized with a large capacity.

The cover part 98 follows the trough part 96 in its outer contour. Provision is made in particular for the trough part 96 to be open over its entire cross section when the cover part 98 is removed.

A recess 102 which is trough-shaped is formed on the cover part 98 . This recess 92 protrudes into a receiving space 104 of the dirty fluid tank device 84 when the cover part 98 is placed on the trough part 96 . A bottom of the open space 104 can be arranged to contact the bottom 100 of the tray part 96 .

The recess 102 corresponds to the seat 52 on the holder 42. The seat 52 on the holder 42 has a portion which protrudes downward. When the dirty fluid tank device 84 is seated on the holder 42, the corresponding area of the receptacle 52 is immersed in the recess 102 of the dirty fluid tank device 84.

In this way, the bottom head 12 can be designed with a small height in the vertical direction 48 .

Furthermore, the submerged area of the receptacle 52 in the recess 102 of the dirty fluid tank device 84 can be used to provide a form-fitting connection with respect to a displacement of the dirty fluid tank device 84 parallel to the longitudinal axis 24 and transverse to the longitudinal axis 24 . The dirty fluid tank device can then be fixed to the holder 42 in these directions. As a result, only a fixation in the height direction 48 via the fixing device 88 is necessary.

The cleaning roller 14 is seated on the holder 42 in such a way that it projects beyond the underside 86 of the floor head 12 (the dirty fluid tank device 84). It is then reached in a cleaning operation (cf. figure 5 ) that the bottom head 12 is supported on the base 16 via the cleaning roller 14 without the underside 86 touching the base 16 .

In one embodiment, a support area 106 is arranged on the floor head 12 which is at a distance from the cleaning roller 14 . This support area 106 serves to support the floor head 12 and thus also the floor cleaning machine 10 as a whole, in particular during cleaning operation and also in a parking position on the base 16. The support area 106 is then arranged in such a way that the underside 86 of the dirty fluid tank device 84 is neither in cleaning operation contacted the base 16 while still in the parking position.

The support area 106 is arranged in particular at a rear end 108 of the holder 42 which faces away from the front end 78 .

In the exemplary embodiment, the support area 106 is formed by a slide or a roller 110 .

The dirty fluid tank device 84 comprises a cutout 112 through which the corresponding support area 106 is immersed in order to enable support on the base 16 . The cutout 112 is in particular formed both on the wall part 96 and on the cover part 98 .

The cleaning roller 14 or its parts 66, 68 each have a carrier 114 which is in particular cylindrical. A trimming 116 made of a textile material sits on the carrier 114 . Trimming 116 is made from a microfiber material, for example. In this context, reference is made to the non-prepublished international patent application No. PCT/EP2019/051337 dated January 21, 2019 by the same applicant.

A stripping device 118 with (at least) one stripper 120 is arranged on the bottom head. The scraper 120 protrudes into the textile material of the facing 116 in order to be able to detach dirty fluid from the cleaning roller 14 .

It is related to the WO 2015/086083 A1 referred to, to which reference is expressly made.

The wiper 120 is seated on an orifice 122 and in particular forms an orifice wall, the orifice 122 being in fluid communication with the dirty fluid tank device 84 . Dirty fluid that has been detached from the cleaning roller 14 can thereby be conveyed into the dirty fluid tank device 84 .

This conveyance of dirty fluid into the dirty fluid tank device is provided in particular without a pump or fan, it also being possible in principle for a fan to be present to generate a suction flow.

In particular, it is provided that the stripping device 118 and/or the mouth 122 are arranged on the dirty fluid tank device 84 and can also be removed with it, for example.

In this context, reference is made to the WO 2019/029821 A1 . In particular, the stripping device 118 is arranged on the cover part 98 .

When the floor cleaning machine 10 is in operation, cleaning liquid is supplied from the tank device 34 for cleaning liquid via the supply device 40 in the floor head 12 and thus to the cleaning roller 14 . The cleaning roller 14 is moistened with cleaning liquid. The surface to be cleaned is then also moistened by the cleaning roller 14 . This allows dirt to be removed. The cleaning roller 14 continues to act mechanically on the surface to be cleaned 14. Loosened dirt is taken over the cleaning roller 14. Dirty fluid is wiped off the cleaning roller 14 via the scraping device 118 and is conveyed into the dirty fluid tank device 84 in the process.

In this context, reference is made in particular to WO 2017/153450 A1 and the WO 2019/029821 A1 .

One or more sweeping element(s) 119 can also be arranged on the bottom head 12 and, for example, on the dirty fluid tank device 84 . In this context, reference is made to the example WO 2016/058956 A1 and the WO 2016/058907 A1 .

The joint 20 is also arranged on the holder 42 .

In one embodiment, a joint holder 124 (cf. figure 8 ) is provided, which is fixed to the holder 42 and is positioned on the housing 56 of the drive device 50 and, in particular, accommodates it.

A first support foot 126 and a second support foot 128 are arranged on the joint holder 24 . These are spaced apart from each other.

A shaft 130 is non-rotatably connected to the holding rod 26 . The shaft 130 is rotatably positioned on the first support leg 126 and the second support leg 128 . The axis of rotation corresponds to the pivot axis 22.

In relation to the longitudinal axis 24 , the pivot axis 22 is positioned between the front end 78 and the rear end 108 of the holder 42 and thus between the front end and the rear end of the floor head 12 .

Relative to the height direction 48 starting from the underside 86 of the floor head 12, the joint 20 with the joint holder 124 is above the Dirty fluid tank device 84 arranged, wherein the holder 42 between the joint 20 and the dirty fluid tank device 84 is located.

The support feet 126 and 128 are positioned symmetrically to a center plane of the floor head 12 between the first transverse side 74 and the second transverse side 76 . The holding device 18 is articulated centrally and symmetrically on the base head 12 .

The joint 20 is also positioned at least approximately centrally with respect to the longitudinal axis 24 between the front end 78 and the rear end 108 .

A cover 132 (cf. Figures 1 to 3 ), which covers the holder 42 at the top. In figure 4 the bottom head 12 is shown without this cover 132.

The holding device 18 is in a pivoting angle range 134 with respect to the base head 12 (cf. figure 2 ) pivotable. This swivel angle range is, for example, of the order of 110°.

For example, a maximum pivoting angle of the holding device 18 relative to the base head 12 is reached when the retaining rod 26 is at least approximately parallel to the underside 86 of the base head 12 .

A parking position 136 ( figure 1 ) of the holding device 18 to the bottom head 12 is provided. This parking position 136 is a storage position for the floor cleaning machine 10 and is in particular not an operating position for a cleaning operation.

This parking position 136 can be secured via a parking position holding device 138 . The holding device 138 ensures a force-fitting or form-fitting Fixation of the holding device 18 in the parking position 136 on the floor head 12.

In one embodiment, the parking position holding device 138 is designed as a holding magnet device 140 . For example, one or more holding magnets 142 are located on the holding device 18. One or more counter-element(s) 144 are located on the base head 12 and in particular the holder 42. The holding magnet(s) 142 can be pivoted with the holding device 18. The counter-element(s) 144 is/are firmly attached to the floor head 12. When a specific pivoting position is reached, namely the parking position 136 (cf. figure 1 ), then the holding magnet(s) 142 can interact with the counter-element(s) 144 and a non-positive fixing of the parking position holding device 138 on the floor head 12 is achieved. The parking position 136 is fixed.

In particular, the counter-element(s) 144 are/are arranged in such a way that they do not interfere with the ability of the holding device 18 to pivot during normal cleaning operation. The counter-element 144 serves as a sort of stop for the parked position 136 , this stop position then being secured as a parked position 136 via the holding device 138 in general and specifically via the holding magnet device 140 .

For example, in the parking position 136, the longitudinal axis 28 of the retaining rod 26 is parallel to the vertical direction 48 or is at a small acute angle of, for example, 10° or 20° to this vertical direction 48 (cf. figure 2 ).

The support area 106 is arranged on the holder 42 in the floor cleaning machine 10 . In principle, it is also possible for the support area 106 to be arranged in the dirty fluid tank device 84 and in particular to be removable with it.

The cleaning roller has a first front end 146 which lies on the first part 66 . It has a second front end 148, which in the second part 68 lies ( figure 9 ). The cleaning roller extends in a direction along the axis of rotation 70 between the first end 146 and the second end 148. At a middle region 150, the cleaning roller 14 is separated so that the first part 66 and the second part 68 are formed. The transmission device 16 is coupled to the cleaning roller 14 in a torque-effective manner at this middle region 150 .

The cleaning roller 14 extends at least approximately between the first transverse side 74 and the second transverse side 76. The first front end 146 lies on the first transverse side 146 or is set back at most by a small distance in the direction of the axis of rotation 70 . In the same way, the second front end 148 lies within the second lateral side 46 or is set back at most a small distance. This small distance, over which front ends of the cleaning roller 14 can be set back with respect to the transverse sides 74, 76, is in particular at most 5% and in particular at most 1% of a width B of the bottom head 12 between the first transverse side 74 and the second transverse side 76 ( figure 9 ).

A base device 152 is arranged on the floor head 12 . The dirty fluid tank device 84 has at least one continuous recess 154 which is assigned to the base device 152 .

The pedestal device 152 is designed and arranged mirror-symmetrically to a center of gravity of the floor cleaning machine 10 .

In the hand-held floor cleaning machine 10, the dirty fluid tank device 84 has continuous recesses 154a, 154b spaced apart in a spacing direction between the first transverse side 74 and the second transverse side 76.

The continuous recesses 154a, 154b pass through both the pan portion 96 and the cover portion 98. They form "tunnels" through the dirty fluid tank assembly 84. They each have a wall 156, via which they are separated from the receiving space 104 in a fluid-tight manner.

The recesses 154a, 154b are arranged between the support area 106 and the cleaning roller 14 in relation to the longitudinal axis 24 of the floor head 12 .

In a preferred embodiment, they are closer to the cleaning roller 14 than to the support region 106 with respect to the longitudinal axis 24.

In particular, the continuous recesses 154a, 154b are arranged eccentrically with respect to the longitudinal axis 24.

In one embodiment, they are positioned between the recesses 90 and the forward end 78 of the retainer 42 relative to the longitudinal axis 24 .

The continuous recesses 154a, 154b are positioned in the vicinity of the respective first transverse side 74 and 76 and are offset somewhat inwards.

It is also possible that a recess 155 is formed as a cutout on the dirty fluid tank device 84, which is open to a transverse side, as in FIG figure 9 implied.

The recess 155 as a cutout (recess) can also be positioned in a corner area and be open on two transverse sides.

In relation to a width direction 158 of the base head 12, the continuous recess 154a is at a distance from the nearest first transverse side 74. The continuous recess 154b is spaced in this width direction 158 from the nearest second transverse side 76. A distance between the continuous recess 154a, 154b in the width direction 158 is smaller than a corresponding length of the cleaning roller 14 in this width direction 158, wherein the length of the cleaning roller 14 is the length between the first front end 146 and the second front end 148 in the width direction 158.

As will be described in more detail below, this arrangement of the continuous recesses 154a, 154b results in a secure stand in a parking position with the cleaning roller 14 raised. In particular, a cleaning operation close to the edge can be achieved since the cleaning roller 14 reaches at least approximately to the transverse sides 74, 76. The pedestal device 152 does not negatively influence the structure of the floor head 12, which is optimized for an optimized cleaning process.

Recesses 160a, 160b corresponding to the continuous recesses 154a, 154b are arranged on the holder 42. The continuous recess 154a continues in the recess 160a in the holder 42; the continuous recesses 154b continue in the recess 160b. As a result, passages are formed between the upper side 44 and the lower side 46 of the holder 42 and then between the upper side 44 of the holder 42 and the lower side 86 of the dirty fluid tank device 84 and thus of the floor head 12 .

The hand-held floor cleaning machine 10 has a parking position 162 ( Figures 1 to 4 ) on. In this parking position 162 the cleaning roller 14 is lifted off the base 16 via the stand device 152 . The floor cleaning machine 10 is supported via the floor head 12 on the base 16 via the support area 106 and the foot device 152 . The cleaning roller 14 does not touch the substrate 16. In this way it can be avoided that the cleaning roller 14 gets "standing plates". Furthermore, damage to a floor to be cleaned can be prevented since the floor (the base 16) is out of contact with the cleaning roller 14 and possibly also with cleaning agent or liquid on the cleaning roller 14 except contact is made. Furthermore, improved drying of the cleaning roller 14 can be achieved when the floor cleaning machine 10 is not in operation.

The parking position 162 of the floor cleaning machine 10 as a whole is coupled in particular to the parking position 136 of the holding device 18 relative to the floor head 12 .

The stand device 152 is arranged on the floor head 12 such that it can pivot via a joint 164 . The hinge 164 is positioned at the bracket 42 and there at the top 44 . The joint 164 is thus positioned above the dirty fluid tank device 84 in the vertical direction 48 .

The joint 164 has a pivot axis 166 ( figure 4 ). The pivot axis 166 lies essentially parallel to the width direction 158. It is parallel to the pivot axis 22 of the pivotability of the holding device 18 on the floor head 12. It is also parallel to the axis of rotation 70 of the cleaning roller 14. It is transverse and in particular perpendicular to the longitudinal axis 24 of the floor head 12. It is also transverse and in particular perpendicular to the vertical direction 48 of the floor head 12.

The hinge 164 is arranged to be positioned between the front end 78 and the rear end 108 of the holder, being closer to the rear end 108 than the front end 76 . The joint is arranged in the area of the mount 52 of the holder 42 and is positioned between the mount 52 and the rear end 108 .

The joint 164 is thus arranged between the drive device 50 and thereby between the housing 56 and the rear end 108 or is positioned between the housing 56 and the support area 106 with respect to the longitudinal axis 24 .

In one embodiment, it is provided that the pivot axis 166 of the joint 164 is closer to the holder 42 in relation to the vertical direction 48 than the pivot axis 22 for the pivotability of the holding device 18 to the base head 12.

The stand assembly 152 includes a bracket 168 ( figures 4 , 8th ), which is articulated directly to the joint 164.

A first arm 170a and a second arm 170b sit spaced on the bracket 168 . The bracket 160 with the arms 170a, 170b is fork-shaped. The drive device 50 with its housing 56 is positioned between the first arm 170a and the second arm 170b, and the joint holder 124 with the joint 20 is positioned.

The first arm 170a and the second arm 170b are arranged above the holder 42 .

A first foot 172a sits on the first arm 170a. A second stand 172b sits on the second arm. The first base 172a is at least partially immersed through the recess 160a, 154a (or 155) (see below). The second base 172b is at least partially immersed through the recesses 160b, 154b.

Depending on the pivoted position of the base device 152, the bases 172a, 172b protrude beyond the underside 86 of the floor head 12 ( Figures 1 to 4 ), or do not protrude beyond the bottom ( Figures 5 to 7 ).

When the feet 172a, 172b protrude beyond the underside 86 of the floor head 12 and are fixed accordingly (see below), then the parking position 162 of the floor cleaning machine 10 is reached ( Figures 1 to 4 ). The feet 172a, 172b are then supported on the base 16 ( Figures 1 to 4 ), and the cleaning roller 14 is lifted off the base 16.

An actuating mechanism 174 is provided, which couples a positioning of the base device 152 with regard to reaching the parking position 136 to a pivoting positioning of the holding device 18 with respect to the cleaning roller 14 .

For this purpose, a tab 176 is arranged on the bracket 168 . The tab 176 is positioned between the first arm 170a and the second arm 170b, and in particular centrally between them. It points towards the cleaning roller 14 . The tab 176 (cf. figure 4 ) is arranged above the joint holder 124 in relation to the height direction 48 and is positioned between the first support foot 126 and the second support foot 128. In relation to the vertical direction 48, the lug 176 is arranged below the pivot axis 22 (cf. figure 4 ). The tab 176 is non-rotatably connected to the bracket 168 and is pivotable therewith. A force (torque) is introduced via the tab 176 in order to bring about a pivoting movement of the stand device 152 .

A rib 178 ( figures 4 , 7 , 8th ). This rib can be rotated about the pivot axis 22 with the support rod device 18 .

A cam 180 is seated on the shaft 130. This cam 180 is rotatably held on the shaft 31 via a joint 182. FIG. A rotation axis 184 of the cam 180 coincides with the pivot axis 22 .

For example, the joint 182 includes joint eyes 186 via which the cam 180 can be rotated about the axis of rotation 184 .

The cam 180 is positioned between the first support foot 126 and the second support foot 128 and is thereby positioned above the tab 176 in the height direction 48 . The cam 180 can be acted on via the rib 178 , the cam 180 in turn being able to act on the tab 176 and thus the stand foot device 152 .

The rib 178 and the cam 180 are separate from each other. The rib 178 can act on the cam 180 only in a specific pivoting position and also only in a specific pivoting direction.

In particular, it is provided that the cam 180 rests on the tab 126 to a certain extent. When the rib 178 is not acting on the cam 180, the cam 180 rests "loosely" on the tab 176 with no particular torque application and does not exert any force on the foot assembly 152 which is capable of establishing the parked position 136.

Such a position is in figure 7 shown.

When the holding device 18 pivots in a pivoting direction 188 (cf. figure 7 ) Above a certain pivoting angle range, the rib 178 comes into contact with the cam 180. When the holding device 18 is pivoted further, the rib 178 exerts a force on the cam 180 and rotates it about the axis of rotation 184. The cam 180 then in turn acts on the tab 176 and pivots the base device 152 (the bracket 168 with the arms 170a, 170b and the bases 172a, 172b in the corresponding pivoting direction 190.

Outside of the parking position 162, the feet 172a, 172b are at least partially immersed in the recesses 160a, 154a or 160b, 154b ( figure 7 ), but do not protrude beyond the underside 86. There is a non-support position.

The feet 172a, 172b are pushed out over the underside 86 by the corresponding pivoting of the pivoting direction 190 via the exertion of force by the holding device 18 . The corresponding mobility of the feet 172a, 172b, which has a component in the height direction 48, is in the figures 4 and 7 indicated by a double arrow with the reference number 192.

The parking position 162 is also a parking position 162 of the base device 162. The bases 172a, 172b protrude beyond the underside 86 of the floor head 12 (the dirty fluid tank device 84) in such a way that support is achieved on the base and the cleaning roller 14 is lifted.

The parking position 162 is reached when the holding device 18 has reached its parking position 136 . At the same time, this parking position 162 of the stand device 152 is also fixed by the parking position 136 of the holding device 18 . In the parking position 136 of the holding device 18, this is connected to the floor head 12 in a non-positive manner, for example. The actuation mechanism 174 is sized so that the rib 178 acts on the cam 180 (permanently acts in the park position 136), and the cam 180 correspondingly acts on the tab 176 again to fix the park position 162.

A spring device 194 is arranged on the floor head 12 and acts on the base device 152 (cf Figures 3 and 6 ). The spring device 194 is arranged and designed in such a way that it endeavors to pivot the base device 152 in the opposite direction to the pivoting direction 190 . The spring device 194 is designed in particular as a tension spring device which tends to pull the base device 152 away from the top side 44 of the holder 42 .

In order to enable the stand foot device 152 to be pivoted into the parking position 162, the force of the spring device 194 must be overcome.

If the parking position 136 of the holding device 18 is released by moving it out of the parking position 136 counter to the pivoting direction 188, then from a certain pivoting angle range the rib 178 no longer acts on the cam 180. The spring device 194 can then move the base device 152 counter to the Pivot direction 190. As a result, the feet 172a, 172b are pulled back with a movement component parallel to the height direction 48 and as a result in particular protrude no longer beyond the bottom 86 of the bottom head 12 addition. As a result, the cleaning roller 14 is lowered and cleaning operation of the floor cleaning machine 10 is possible. There is no longer any support via the feet 172a, 172b.

The walk behind floor cleaning machine 10 works as follows:
In a parking position 162 of the floor cleaning machine 10 ( Figures 1 to 4 ) the floor cleaning machine 10 is supported on the base 16 above the floor head 12 in such a way that the cleaning roller 14 is lifted off the base 16. This prevents flat spots on the cleaning roller 14, improved drying of the cleaning roller 14 can be achieved and damage to the floor is avoided.

In the parking position 162, the floor cleaning machine is supported on the base 16 via the floor head 12, the support being provided via the support area 106 and the feet 172a, 172b of the foot device 152.

In particular, the holding device 118 is in the parking position 136 and is secured by the holding magnet device 140 . The parking position 136 of the holding device 18 also fixes the parking position 162 as the parking position of the floor cleaning machine 10 and the stand device 152.

In the parking position 136 of the holding device 18, the rib 178 contacts the cam 180 and presses it against the tab 176. The corresponding force secures the parking position 162.

In order to be able to put the floor cleaning machine 10 into operation starting from the parking position 162, the holding device 18 is pivoted about the pivot axis 22 in a pivoting direction 188' ( figure 1 ) pivoted. The pivoting direction 188 ′ is in the opposite direction to the pivoting direction 188 . During this pivoting, the holding device 18 is pivoted away from the cleaning roller 14 .

Above a certain pivoting angle, the rib 178 no longer contacts the cam 180 . This is made "loose" to a certain extent and it only rests loosely on the lug 176 without exerting any force worth mentioning.

The force of the spring device 194 then causes the base device 152 to be pulled upwards and thus pulled away from the base 16 . The feet 172a, 172b rotate or slide away from the base 16 and their corresponding front end, which previously touched the base 16, dips into the recess 154a, 154b.

The floor head 12 is thereby lowered onto the base 16 until the cleaning roller 14 touches the base. The bottom head 12 is then supported on the base 16 via the support area 106 and the cleaning roller 14 .

In particular, a stop is provided for the stand foot device 152, which limits a maximum pivoting angle of the pivoting direction 188'.

It is preferably provided that when the corresponding position is reached, the feet 172a, 172b no longer protrude beyond the underside 86 of the floor head 12 ( Figures 5 to 7 ).

A cleaning operation of the floor cleaning machine 10 is then possible.

In the cleaning operation of the floor cleaning machine 10 , the cleaning roller 14 is driven in rotation via the drive device 50 . Here, cleaning liquid (water with or without, for example, surfactant-based cleaning agent) is fed in from the tank device 34 via the feed device 40 . In particular, the cleaning roller 14 is moistened directly.

In particular, there is propulsion in direction 80 .

A cleaning fluid is applied to an area on the base 16 that is to be cleaned via the cleaning roller. A mechanical action also follows. Dirt can be loosened, taken away by the cleaning roller 14 and scraped off via the scraper device 118 and conveyed into the dirty fluid tank device 84 .

After the end of a cleaning process, an operator pivots the holding device 18 in the pivoting direction 188 into the parking position 136. From a certain pivoting angle range, the rib 178 can then act on the cam 180, which in turn introduces a torque on the lug 176 into the base device 152. The base device 152 pivots in the pivoting direction 190, the bases 172a, 172b move out and are then supported on the base 16. The cleaning roller 14 is lifted. When the holding device 18 is pivoted by an operator into the parking position 136, this lifting takes place automatically.

The feet 172a, 172b are passed through the dirty fluid tank device 84. The bottom head 12 can thus be optimized for a cleaning process. The cleaning roller 14 can extend to the transverse sides 74, 76. The floor head can also be designed with a relatively small height in the height direction 48, in particular in the area of the front end 78, so that an optimized ability to drive underneath furniture and the like is achieved.

In the case of the actuating mechanism 174, the holding device 18 is not permanently coupled to the base device 152. The rib 178 and the cam 180 are decoupled in a pivoting range of the holding device 18 for the cleaning operation. This means that the cam 180 is also not moved in this pivoting range. This results in an optimized use of space and simplified operation for a user. The optimized use of space in turn allows an optimized cleaning operation.

In the above exemplary embodiment, a mechanical coupling of the holding device 18 to the stand device 152 is provided. It is also possible that there is no mechanical coupling, but rather a signal-effective coupling. For example, a sensor device is provided which determines whether the holding device 18 is being brought into the parking position or is in the parking position. With a corresponding sensor signal, the stand device 152 is then brought into the parking position 162, for example by an electric motor.

When the holding device 18 is moved out of the parked position 136, the base device 152 is correspondingly pivoted out of the support position (parked position 162) via the electric motor.

The dirty fluid tank device 84 can be designed with a small height in the vertical direction 48 in the case of a large capacity. Through the recesses 154a, 154b, the parking position 162 can be reached in a simple manner via the base device 152, even when the dirty fluid tank device 84 is arranged on the floor head 12. For this purpose, for example, the width dimensions of the bottom head 12 in the width direction 158 do not have to be increased and increased beyond the front ends 146, 148 of the cleaning roller 14.

The technical solution of passing feet through the dirty fluid tank device can also be used with cleaning robots, for example. In particular, a self-propelled and self-steering floor cleaning device can be provided which has a floor head, at least one cleaning roller which is arranged on the floor head, a dirt fluid tank device which is arranged on the floor head, and a stand device which is arranged on the floor head, wherein in a parking position of the floor cleaning machine, the floor head is supported on a base in such a way that the at least one cleaning roller is at a distance from the base, the dirty fluid tank device having at least one continuous recess through which at least in the parking position, a base of the base device has protruded.

For example, a motor drive is provided for moving the stand device, in particular for a transition between the parking position and a cleaning position and for the transition from a cleaning position to a parking position.

Another embodiment of a hand-held floor cleaning machine 202 according to the invention is shown in FIGS Figures 11 to 18 shown in a partial view. Only part of a corresponding holding device for manually guiding the floor cleaning machine 202 is shown. The Figures 15 to 18 show a parking position of the floor cleaning machine; the Figures 11 to 14 show a position of a holding device to a floor head 204 outside of the parking position.

The floor head 204 is largely the same as the floor head 12 of the floor cleaning machine 10. The same reference numbers are used for the same elements as in the floor head 12.

The hand-held floor cleaning machine 202 differs from the floor cleaning machine 10 essentially in the connection of a holding device 206 to the floor head 204.

The holding device 206 has a holding rod corresponding to the holding rod 26 (in Figs Figures 11 to 18 Not shown). It has an extension with a longitudinal axis corresponding to the longitudinal axis 28 .

The holding device 206 is pivotably coupled to the floor head 204 via a joint device 208 .

The articulation device 208 comprises a first articulation 210, via which the holding device 206 is articulated on the base head 204 such that it can be pivoted about a pivot axis 212.

The pivot axis 212 is perpendicular to the longitudinal axis 28. A pivot position of the holding device 206 on the first joint 210 determines the height of the hand-held floor cleaning machine 202 between an underside of the floor head 204 and an upper side of the holding device 206. The representations according to the Figures 11 to 14 on the one hand and according to the Figures 15 to 18 on the other hand differ in the pivoting position of holding device 206 about pivot axis 212.

The pivot axis 212 corresponds to the pivot axis 22 in the floor cleaning machine 10.

In one embodiment, a shaft 214 is arranged on the holding device 206 in a rotationally fixed manner, which is correspondingly mounted on the first joint 210 and enables pivotability about the pivot axis 212 .

The shaft 214 corresponds to the shaft 130 in the floor cleaning machine 10.

The joint device 208 comprises a second joint 216. The second joint 216 sits on the first joint 210. The second joint 216 is used to hold the holding device 206 and in particular a holding rod corresponding to the holding rod 26 (with a loop handle corresponding to the loop handle 30) about an axis of rotation 218 which is parallel to the longitudinal axis 28. The axis of rotation 218 is thereby oriented perpendicular to the pivot axis 212 .

The corresponding rotatability of the holding device 206 on the second joint 216 about the axis of rotation 218 is shown in FIGS figures 11 , 12 indicated by the double arrow with reference number 220 .

The ability of the holding device 206 to rotate about the axis of rotation 218 is an additional possibility of moving the holding device 206 to the base head 204 and in particular enables a rotational alignment of the corresponding loop handle 30 of the holding device 206 to the base head 204. This results in easier cleaning options.

In particular, the rotation of the holding device 206 about the axis of rotation 218 is possible in any pivoted position of the holding device 206 in relation to the pivot axis 212, with the exception of a parked position 222 (which corresponds to the parked position 136 in the floor cleaning machine 10). The corresponding parking position 222 is in the Figures 15 to 18 shown.

In one exemplary embodiment, it is provided that the holding device 206 can be rotated about the axis of rotation 218 by an angle of up to ± α , based on a basic position with a rotation angle of zero, with α being in particular at least 30°. The basic position is a position in which the loop handle 30 is aligned parallel to a longitudinal axis 224 of the base head 204 . This longitudinal axis 224 at the floor head 204 corresponds to the longitudinal axis 24 at the floor head 12 of the floor cleaning machine 10.

The bottom head 204 has a holder 226 which corresponds to the holder 42 of the bottom head 12 . The holder 226 is designed in particular as a holding plate. A housing 228 sits on its upper side.

The housing 228 has an opening 230 with this opening 230 being positioned at a top of the housing 228 . In the area of this opening 230, the joint device 208 is seated on the base head 204 and the holding device 206 penetrates with a partial area through the opening 230 into the housing 228.

A tank device corresponding to tank device 84 is seated on an underside of holder 226 facing away from housing 228.

A motor corresponding to the motor 54 is also seated on the holder 226. A transmission device corresponding to the transmission device 60 for transmitting torque from the motor 54 to the cleaning roller 14 is provided.

Furthermore, a base device corresponding to the base device 152 is seated on the holder 226. This has bases corresponding to the bases 172a, 172b. Stand assembly 152 includes a tab corresponding to tab 176.

The motor 54, the transmission device 60, the base device 152 etc. are arranged in the housing 228 in a protected manner.

In the case of the floor cleaning machine 202, the holding device 206 comprises a first part 232 (cf. for example figure 14 ). A handle such as the loop handle 30 is arranged on this first part 232 . It also includes a second part 234. The shaft 214 is seated on the second part 234. The second part 234 is articulated to the base head 204 via the first joint 210. FIG. The second part 234 can be pivoted about the pivot axis 212 in relation to the base head 204 . With respect to the axis of rotation 218, the second part 234 is rotationally fixed to the bottom head 204.

The second part 234 is connected to the first part 232 via the second joint 216 so as to be rotatable about the axis of rotation 218 . As a result of this arrangement, the second part 234 can be pivoted about the pivot axis 212 in relation to the base head 204 and can be rotated about the axis of rotation 218 in relation to the base head 204 .

In principle, it is also possible for the holding device 206 to be articulated as a whole on the base head 204 such that it can be rotated (about the axis of rotation 218). In this embodiment, in particular, the corresponding joint can also be rotated with the pivot axis 212 , which in the floor cleaning machine 202 is non-rotatable in relation to the axis of rotation 218 to the floor head 204 .

A rocker arm 236 (see, for example, figure 13 ) arranged. The rocker arm 236 can be pivoted about the pivot axis 212 when the holding device 206 is pivoted. With respect to the axis of rotation 218, it is rotationally fixed to the base head 204. The rocker arm 236 is positioned in the housing 228 so that it can pivot about the pivot axis 212.

The rocker arm 236 is seated on an extension of the holding device 206 which protrudes (through the opening 230) into the housing 228, so that the rocker arm 236 is arranged in an interior space of the housing 228.

Rocker arm 236 is positioned beyond shaft 214; the shaft 214 (for the pivotal mounting of the holding device 206 on the base head 204 with the pivot axis 212) is arranged between the rocker arm 236 and the second joint 216.

A holding magnet 238 is arranged at one end of the rocker arm 236 . This holding magnet 238 can be pivoted with the rocker arm 236 in the interior of the housing 228. The pivoting movement is initiated by a pivoting movement of the holding device 206.

The holding magnet 238 forms, together with a counter-element 240, a holding magnet device 242. The holding magnet device 242 means that the parking position 222 of the floor cleaning machine 202 ( Figures 15 to 18 ) fixable.

The counter element 240 is a (in the parking position 222) with the holding magnet 238 cooperating metal plate. The counter-element 240 is fixed (and in particular not pivotable about the pivot axis 212 ) in the housing 28 .

For example, the counter-element 240 is arranged oriented at an acute angle 244 to a vertical axis 46 of the base head 204 .

In the parking position 222 (see in particular figure 17 ) the holding magnet 238 is in contact with the counter-element 240 and the magnetic force secures the parking position 222 in a non-positive manner. The holding magnet device 242 with the counter-element 240 and the holding magnet 238 secures this in the parking position 222 in such a way that the holding device 206 standing opposite the floor head 204 (non-positive) is fixed.

For example, in the parking position 222 (cf. figure 17 ) the holding device 206 is oriented at an acute angle 248 to the vertical axis 246 with respect to its longitudinal axis 28 . The acute angle 248 is, for example, on the order of 20°.

It is also possible, for example, that the holding device 206 is oriented at least approximately parallel to the vertical axis 246 (and the acute angle 248 is close to 0°).

In the parking position 222, the holding magnet device 242 prevents the holding device 206 from falling back in the pivoting direction 250 according to FIG figure 17 .

In one embodiment, the mating member 240 is positioned with respect to the holding magnet 238 such that a stop 252 ( figure 17 ) is formed, which limits a maximum pivoting angle and which defines the parking position 222 in a direction 254 opposite to the pivoting direction 250 . If the holding magnet 238 strikes the counter-element 240 mechanically, then a maximum pivoting angle for the first joint 210 with the pivot axis 212 is reached and further pivoting in the opposite direction 254 is no longer possible due to the stop 252 ( figure 17 ).

Starting from a pivoted position of the holding device 206 (relative to the pivot axis 212) outside of the parking position 22 (cf., for example, figure 13 ) the holding device 206 can be pivoted in the opposite direction 254 until the stop 252 acts and the holding magnet 238 strikes the rocker arm 236 against the counter-element 240 . The maximum swivel angle and thus also the parking position 222 are then reached. The parking position 222 is then also automatically secured by the holding magnet device 242 in a non-positive manner against pivoting back (tipping back) in the pivoting direction 250 .

The holding magnet device 242 with the counter-element 240 and the holding magnet 238 is arranged in the housing 228 . As a result, the overall height of the floor head 204 in the direction of the height axis 246 can be kept small, and the result is good accessibility under furniture and the like.

The design of the holding magnet device 242 is independent of whether the holding device 206 or on the holding device 206 can be rotated about the axis of rotation 218 .

A sign 256 is arranged on the base head 204 or this sign 256 is assigned to the base head 204 . This shield 256 can be moved with the holding device 206 with respect to the pivoting about the pivot axis 212 . With regard to the ability to rotate about the axis of rotation 218, the shield 256 is rotationally fixed to the base head 204 or to the first part 232 of the holding device 206.

A rib 258 is arranged on the first part 232 of the holding device 206 . This rib 258 (see, for example, the figures 14 and 18 ) corresponds in terms of function to rib 178 on floor cleaning machine 10.

Furthermore, a cam 260 is rotatably arranged on the first part 232 of the holding device 206 . In terms of function, this cam 260 corresponds to the cam 180 in the floor cleaning machine 10.

As in the case of the floor cleaning machine 10, the rib 258 acts on the cam 260 (cf. figure 18 ), and moves it onto a tab 176 (the same reference number is used as in the floor cleaning machine 10) of the stand device 152.

This brings the feet 172a, 172b into the parking position 162 ( Figures 15 to 18 ).

The mode of operation is the same as that described with reference to the floor cleaning machine 10 .

A convex area 262 is arranged on the cam 260 . This convex portion 262 is rotatable with the cam 260 .

The convex portion 262 forms a track guide 264 for a curved portion 266 of the shield 256.

The shield 256 is arranged on the first part 232 in such a way that it can be pivoted with it when it is pivoted about the pivot axis 212 . In this case, it is arranged on a region of the holding device 206 which faces away from the base head 204 (cf., for example, figure 14 ).

A first positive-locking element 268 is seated on the holding device 206 on the second part 234 (which can be rotated about the axis of rotation 218 with respect to the first part 232. In the embodiment shown, the first positive-locking element 268 is designed as a recess.

A second positive-locking element 270 , which is provided for cooperation with the first positive-locking element 268 , is seated on the shield 256 at a distance from the curved partial area 266 .

In the exemplary embodiment shown, the second positive-locking element 270 is a pin, which is provided for immersing (in the parking position 222) into the first positive-locking element 268 .

A spacer 272 is arranged on the holding device 206 and thereby on the second part 234 . The spacer 272 serves to keep the second form-fitting element 270 at a distance from the first form-fitting element 268 outside of the parking position 222, so that outside of the parking position 222 no form-fitting connection is established between the shield 256 and the holding device 206 (via the form-fitting elements 268, 270).

In one embodiment, the spacer 272 is a pin 274 spring loaded by a spring 276 . The spring 276 is arranged and designed so that it strives to push the pin 274 in the direction of the shield 256 and thereby prevent the second form-fitting element 270 from plunging into the first form-fitting element 268 if no corresponding counterforce is present. As will be explained below, this opposing force is present in the park position 222 .

Outside the parking position 222 (see for example figure 14 ) the shield 256 with the curved portion 266 is partially applied to the convex portion 262. FIG. This also forms a spacer. The second form-fitting element 270 is not immersed in the first form-fitting element 268 . As a result, the holding device 206 can rotate about the axis of rotation 218 , ie the first part 232 can rotate relative to the second part 234 . This rotation is not locked.

When the holding device 206 is brought into the parking position 222 (see, for example, figure 18 ), then the shield 256 is also moved with the corresponding pivoting movement. The curved portion 266 is guided on the web guide 264 until abutment against the convex portion 262 (ie, the cam 260) is achieved. In the parking position 222, a corresponding counterforce to the force of the spring 276 is exerted via a stop 278, which presses shield 256 against pin 274, thereby reducing the clearance. The pin 274 is effectively pushed back into its guide. As a result, penetration of the second form-fitting element 270 into the first form-fitting element 268 is possible and a form-fitting connection is achieved. This form-fit connection blocks the rotation of the holding device 206 about the axis of rotation 218. This is in figure 18 indicated by the crossed-out double arrow 280. The ability to rotate about the axis of rotation 218 is blocked.

The geometric configuration of shield 256 with curved partial area 266 in relation to spacer 272 is such that when it is transferred to parking position 222, its distance from holding device 206 is reduced in order to improve the form-fitting connection between first form-fitting element 268 and the second form-fitting element 270 to achieve automatically (with correct alignment of the holding device 206 with respect to the axis of rotation 218). The cam 260 with its convex area 262 is designed accordingly in order to reach this fixing position in the parking position 222 in cooperation with the stop 278 on the housing 228 .

The floor cleaning machine 202 functions as follows with regard to the pivoting and rotating ability of the holding device 206:
Outside of the parking position 222, the holding device 206 can be pivoted about the pivot axis 212 in order to enable a correspondingly optimized operation. Furthermore, a part of the holding device 206 on the second joint 216 can be rotated about the axis of rotation 218 . As a result, the loop handle 30 in particular can be aligned with the floor head 204 depending on the cleaning process.

To reach the parking position 222, the holding device 206 is pivoted in the pivoting direction 250. When the corresponding swivel angle is reached, which is caused by the stop 252 on the holding magnet device 242 is defined, the corresponding parking position 222 is automatically held by the holding magnet device 242 .

When transferred to the parked position 222, the plate 256 also moves and a form-fitting connection is achieved in the parked position 222 in order to block the ability to rotate about the axis of rotation 218 on the holding device 206.

Furthermore, the parking position 162 of the feet 172a, 172b is reached during the transition to the parking position 222. From a specific pivoting position, the rib 258 acts on the cam 260, which in turn acts on the tab 176 of the stand foot device 152.

The parking position 162 of the stand device 152 is fixed in the parking position 222 .

Furthermore, the kinematics with regard to the rib 258 and the cam 260 are designed in such a way that in the parking position 222 a corresponding positive fixing position is achieved via the shield 256, which blocks the ability to rotate about the axis of rotation 218.

Otherwise, the floor cleaning machine 202 works like the floor cleaning machine 10.

Reference List

10

hand-held floor cleaning machine

12

floorhead

14

cleaning roller

16

document

18

holding device

20

joint

22

pivot axis

24

Longitudinal axis (bottom head)

26

support rod

28

Longitudinal axis (holding device)

30

bow handle

32

battery setup

34

Tank device for cleaning liquid

36

holder

38

holder

40

feeder

42

Floor head holder

44

top

46

bottom

48

height direction

50

drive device

52

Recording

54

engine

56

Housing

58

motor axis

60

gear mechanism

62

first wave

64

second wave

66

first part

68

second part

70

axis of rotation

72

middle area

74

first cross page

76

second cross page

78

front end

80

Direction

82

direction of rotation

84

Tank device (with example dirty fluid tank device)

86

bottom

88

fixation device

90

tab

92

recess

94

decrease direction

94'

decrease direction

96

bath part

98

cover part

100

Floor

102

recess

104

recording room

106

support area

108

rear end

110

role

112

cutout

114

carrier

116

trimming

118

stripping device

119

sweep element

120

scraper

122

mouth

124

joint holder

126

first joint foot

128

second articulated foot

130

Wave

132

cover

134

swivel angle range

136

parking position

138

Parking position holding device

140

holding magnet device

142

holding magnet

144

counter element

146

first front end

148

second front end

150

middle area

152

stand setup

154

continuous recess

154a

continuous recess

154b

continuous recess

155

continuous recess

156

wall

158

latitude direction

160a

recess

160b

recess

162

parking position

164

joint

166

pivot axis

168

hanger

170a

first arm

170b

second arm

172a

first foot

172b

second stand

174

operating mechanism

176

tab

178

rib

180

cam

182

joint

184

axis of rotation

186

hinge eyelet

188

pan direction

188'

pan direction

190

pan direction

192

agility

194

spring device

202

hand-held floor cleaning machine

204

floorhead

206

holding device

208

joint device

210

first joint

212

pivot axis

214

Wave

216

second joint

218

axis of rotation

220

double arrow

222

parking position

224

longitudinal axis

226

holder

228

Housing

230

opening

232

first part

234

second part

236

rocker arm

238

holding magnet

240

counter element

242

holding magnet device

244

acute angle

246

elevation axis

248

acute angle

250

pan direction

252

attack

254

opposite direction

256

Sign

258

rib

260

cam

262

convex area

264

web guidance

266

curved section

268

first form-fitting element

270

second form-fitting element

272

spacers

274

Pen

276

Feather

278

attack

280

double arrow

Claims (15)

1. A floor cleaning machine, comprising a floor head (12; 204), at least one cleaning roller (14) which is arranged on the floor head (12; 204), a tank means (84) which is arranged on the floor head (12; 204), and a movable standing foot means (152) which is arranged on the floor head (12; 204), wherein in a parking position (162) of the floor cleaning machine the floor head (12; 204) is supported on an undersurface (16) by the standing foot means (152) in such a way that the at least one cleaning roller (14) is spaced apart from the undersurface (16), characterised in that the tank means (84) has at least one continuous cutout (154a, 154b; 155) through which, at least in the parking position (162), a standing foot (172a, 172b) of the standing foot means (152) is inserted.
2. A floor cleaning machine according to claim 1, characterised in that the standing foot means (152) has at least a first standing foot (172a) and a second standing foot (172b) spaced apart from the first standing foot (172a), with at least one of the following:

   - the first standing foot (172a) and the second standing foot (172b) are spaced apart from each other in a spacing direction which is parallel to a pivot axis (22) of a holding means (18) in relation to the floor head (12; 204);

   - the first standing foot (172a) and the second standing foot (172b) are spaced apart from each other in a spacing direction which is parallel to an axis of rotation (70) of the at least one cleaning roller (14);

   - the tank means (84) is removable from the floor head (12; 204) in a removal direction (94; 94'), and the first standing foot (172a) and the second standing foot (172b) are spaced apart in a spacing direction which is transverse to the removal direction (94; 94').
3. A floor cleaning machine according to claim 1 or 2, characterised in that a supporting region (106) of the floor head (12; 204) for an undersurface (16) is arranged or formed on the floor head (12; 204) or the tank means (84), which supporting region is spaced apart from the at least one cleaning roller (14), with in particular the supporting region (106) being arranged on a rear end (108) of the floor head (12; 204) or of the tank means (84) which is facing away from the at least one cleaning roller (14), and in particular characterised by at least one of the following:

   - the supporting region (106) has at least one sliding element or at least one rolling element (110);

   - the at least one standing foot (172a, 172b) is spaced apart from the supporting region (106) and, in particular relative to a longitudinal axis (24) of the floor head (12; 204), is arranged between the at least one cleaning roller (14) and the supporting region (106);

   - in cleaning operation, the floor head (12; 204) is supported on an undersurface (16) by way of the supporting region (106) and the at least one cleaning roller (14);

   - in the parking position (162), the floor head (12; 204) is supported on an undersurface (16) by way of the supporting region (106) and the at least one standing foot (172a, 172b), the at least one cleaning roller (14) being lifted away from the undersurface (16).
4. A floor cleaning machine according to one of the preceding claims, characterised by a holding means (18; 206) for guiding the floor cleaning machine, and in particular
   characterised in that the holding means (18; 206) is articulated on the floor head (12; 204) pivotably about a pivot axis (22; 212).
5. A floor cleaning machine according to one of the preceding claims, characterised in that the floor head (12; 204) has a holder (42; 226), with at least one of the following:

   - the tank means (84) is held, and in particular removably held, on the holder (42; 226);

   - the at least one cleaning roller (14) is held on the holder (42; 226);

   - a drive means (50) for the at least one cleaning roller (14) is held on the holder (42; 226);

   - a holding means (18; 206) for an operator is mounted pivotably on the holder (42; 226);

   - the standing foot means (152) is mounted movably, and in particular pivotably, on the holder (42; 226);

   - the holder (42; 226) lies in a vertical direction (48; 246) of the floor head (12; 204) between a pivot axis (166) of the standing foot means (152) and the tank means (84);

   - the holder (42; 226) is or comprises a holding plate.
6. A floor cleaning machine according to one of the preceding claims, characterised in that the standing foot means (152) is mounted pivotably on the floor head (12; 204), and in particular with at least one of the following:

   - relative to a vertical direction (48; 246) of the floor head (12; 204) away from an underside (86) of the floor head (12; 204), with the underside (86) facing the undersurface (16) in the parking position (162), a part of the standing foot means (152) is arranged above the tank means (84);

   - with at least one of the following:

   - a pivot axis (166) of the standing foot means (152) is parallel to a pivot axis (22; 212) of a holding means (18; 206) on the floor head (12; 204);

   - the pivot axis (166) of the standing foot means (152) and the pivot axis (22; 212) of the holding means (18; 206) are spaced apart parallel to each other;

   - the pivot axis (166) of the standing foot means (152) is parallel to an axis of rotation (70) of the at least one cleaning roller (14);

   - the pivot axis (166) of the standing foot means (152), relative to a longitudinal axis (24) of the floor head (12; 204), is positioned between the pivot axis (22; 212) of the holding means (18; 206) and a rear end (108) of the floor head (12; 204);

   - the pivot axis (166) of the standing foot means (152), relative to a vertical direction (48; 246) of the floor head (12; 204), away from an underside (86) of the floor head (12; 204), with the underside (86) facing the undersurface (16) in the parking position (162), lies lower than the pivot axis (22; 212) of the holding means (18; 206);

   - the standing foot means (152) has a bracket (168) which is articulated pivotably on the floor head (12; 204), with at least one of the following:

   - at least a first arm (170a) and a second arm (170b) are located spaced apart on the bracket (168);

   - at least a first standing foot (172a) is arranged on the first arm (170a);

   - at least a second standing foot (172b) is arranged on the second arm (170b);

   - the first arm (170a) and/or the second arm (170b) point(s) in a direction towards the at least one cleaning roller (14);

   - the bracket (168) with the first arm (170a) and with the second arm (170b) surrounds in a fork-like manner a region on which a drive means (50) for the at least one cleaning roller (14) is located on the floor head (12; 204);

   - the bracket (168) and in particular also the first arm (170a) and the second arm (170b) are positioned above the tank means (84) in a vertical direction (48; 246) of the floor head (12; 204);

   - on the bracket (168) is arranged at least one tab (176), on which, in particular by way of a holding means (18; 206) for an operator, it is possible to act, in particular with at least one of the following:

   - the at least one tab (176) is arranged between the first arm (170a) and the second arm (170b);

   - the at least one tab (176) is spaced apart from the first arm (170a) and/or the second arm (170b);

   - the at least one tab (176) points away from the bracket (168) in the direction of the at least one cleaning roller (14);

   - the at least one tab (176) is arranged symmetrically to transverse sides (74, 76) of the floor head (12; 204);

   - the at least one tab (176) is arranged in a vertical direction (48) of the floor head (12; 204) above a drive means (50) for the at least one cleaning roller (14);

   - the at least one tab (176) is arranged in a region of an articulation (20; 210) by way of which a holding means (18; 206) is articulated pivotably on the floor head (12; 204);

   - the articulation (20; 210) for the holding means (18; 206) comprises a first articulated foot (126) and a second articulated foot (128) which is spaced apart from the first articulated foot (126), the at least one tab (176) being positioned between the first articulated foot (126) and the second articulated foot (128).
7. A floor cleaning machine according to claim 6, characterised by at least one of the following:

   - the holding means (18; 206) is coupled to at least one cam (180; 260) which in a particular pivoting range of the holding means (18; 206) acts on the at least one tab (176) and by way of a pivoting movement of the holding means (18; 206) brings about a pivoting movement of the standing foot means (152);

   - non-rotatably on the holding means (18; 206) is located at least one rib (178; 258), which is separate from the at least one cam (180; 260) and in a particular pivoting range of the holding means (18; 206) acts on the at least one cam (180; 260) and causes a movement of the at least one cam (180; 260) for acting on the at least one tab (176);

   - the at least one rib (178; 258) is arranged on a shaft (130; 214) which is connected non-rotatably to the holding means (18; 206);

   - the at least one cam (180) is arranged rotatably on the holding means (18; 206) and is in particular arranged rotatably on a shaft (130; 214) of the holding means;

   - an axis of rotation (184) of the at least one cam (180; 260) with respect to the holding means (18; 206) and a pivot axis (22; 212) of the holding means (18; 206) with respect to the floor head (12; 204) coincide;

   - the at least one rib (178; 258) acts on the at least one cam (180; 260) only in a single pivoting direction of the holding means (18; 206).
8. A floor cleaning machine according to one of the preceding claims,

   characterised by a spring means (194), the spring force of which attempts to bring the standing foot means (152) out of the parking position (162) into a non-supporting position, and in particular

   characterised in that the spring means (194) is formed as a tension spring means which attempts to pull the at least one standing foot (170a, 170b) upwards in a vertical direction (48; 246) of the floor head (12; 204).
9. A floor cleaning machine according to one of the preceding claims,
   characterised in that in the parking position (162) a holding means (18; 206) for an operator is in a fixed pivoting position in relation to the floor head (12; 204), in particular with at least one of the following:

   - in the fixed pivoting position, the holding means (18; 206) is fixed in a force fit and/or in a form fit with respect to the floor head (12; 204);

   - a holding magnet means (140; 242) for fixing a pivot position of the holding means (18; 206) is provided on the floor head (12; 204), in particular with at least one of the following:

   - the holding magnet means (140; 242) comprises at least one holding magnet (142; 238) and a counter-element (144; 240) associated with the at least one holding magnet (142; 238);

   - the at least one holding magnet (238) is arranged in a housing (228) of the floor head (204);

   - the at least one counter-element (240) is arranged in the housing (228) of the floor head (204);

   - the at least one holding magnet (142; 238) is connected non-rotatably to the holding means (18; 206) and the associated at least one counter-element (144; 240) is arranged immovably on the floor head (12; 204), or the at least one counter-element (144; 240) is connected non-rotatably to the holding means (18; 206) and the associated at least one holding magnet (142; 238) is arranged immovably on the floor head (12; 204);

   - the at least one counter-element (240), if located immovably on the floor head (204), is formed as a stop (252) for the holding means (206) and in particular for the associated at least one holding magnet (238), or the at least one holding magnet (238), if located immovably on the floor head (204), is formed as a stop for the holding means (206) and in particular for the associated at least one counter-element (240);

   - the at least one holding magnet (238) or the at least one counter-element (240) is located on a tilting lever (236) of the holding means (206) which is arranged pivotably in the housing (228) of the floor head (204) by way of the holding means (206);

   - the at least one counter-element (144; 240) is a metal plate which cooperates with the associated at least one holding magnet (142; 238).
10. A floor cleaning machine according to one of the preceding claims,
    characterised in that by pivoting a holding means (18; 206) for an operator into a fixed pivot position in relation to the floor head (12; 204) the standing foot means (152) is automatically brought into the parking position (162), and in particular when the floor head (12; 204) is supported on an undersurface (16) the at least one cleaning roller (14) is lifted off from the undersurface (16).
11. A floor cleaning machine according to one of the preceding claims,
    characterised in that the holding means (206) has rotational mobility relative to the floor head (204), with an axis of rotation (218) being at least approximately parallel to a longitudinal axis (28) of the holding means (206), in particular with at least one of the following:

    - a form-fitting means is provided which blocks the ability of the holding means (206) to rotate about the axis of rotation (218) in a parking position (222) of the floor cleaning machine;

    - on the floor head (204) there is arranged a shield (256) which is movable with the holding means (206), with a first form-fitting element (268) being arranged on the holding means (206) and a second form-fitting element (270) which cooperates with the first form-fitting element (268) being arranged on the shield (256), and in the parking position (222) the first form-fitting element (268) and the second form-fitting element (270) being able to be brought into form-fitting engagement;

    - a spacer (272) is provided which outside the parking position (222) positions the shield (256) in relation to the holding means (206) in such a way that the first form-fitting element (268) and the second form-fitting element (270) are not in form-fitting engagement;

    - the spacer (272) is a spring-assisted pin (274) or comprises a spring-assisted pin (274);

    - associated with the shield (256) is a track guide (264) on which a curved partial region (266) of the shield (256) is guided;

    - outside the parking position (222), the track guide (264) acts as a spacer for the shield (256) in relation to the holding means (206);

    - the track guide (264) is arranged on a movable cam (260);

    - on the floor head (204) there is arranged a stop (278) for the shield (256), which stop in the parking position (222) acts on the shield (256) and brings about a form-fitting connection with the holding means (206).
12. A floor cleaning machine according to one of the preceding claims,
    characterised in that the tank means (84) has a cutout (92) into which at least a partial region of a drive means (50) for the at least one cleaning roller (14) is inserted.
13. A floor cleaning machine according to one of the preceding claims,
    characterised by at least one of the following:

    - the at least one cleaning roller (14) is formed in two parts and a central drive is provided;

    - a tank means (34) for cleaning liquid is provided which is arranged in the holding means (18; 206) or on the floor head (12; 204), and in particular a means (40) for supplying cleaning liquid from the tank means (34) for cleaning liquid to the at least one cleaning roller (14) is provided;

    - a stripper means (118) for stripping dirty fluid from the at least one cleaning roller (14) and for coupling into the tank means (84) is provided;

    - the at least one cleaning roller (14) has a textile trim (116), and in particular a stripper (120) of a stripper means (118) is dipped into the textile trim (116).
14. A floor cleaning machine according to one of the preceding claims,
    characterised in that a holding means (18; 206) for an operator is pivotably articulated on the floor head (12; 204), in that at least one rib (178; 258) is connected non-rotatably to the holding means (18; 206), in that at least one cam (180; 260) is provided which is rotatable in relation to the holding means (18; 206) and is separate from the at least one rib (178; 258), in that the at least one rib (178; 258) acts on the at least one cam (180; 260) in a particular pivoting position region of the holding means (18; 206) in relation to the floor head (12; 204) and brings about a rotary movement of the at least one cam (180; 260), and in that the at least one cam (180; 260) is coupled to the standing foot means (152) and a movement of the standing foot means (152) can be activated in the particular pivoting position region of the holding means (18; 206) in relation to the floor head (12; 204) by way of the at least one cam (180; 260) and the standing foot means (152) can be brought into the parking position (162).
15. A floor cleaning machine according to one of the preceding claims,
    characterised in that the floor head (12; 204) has a first transverse side (74) and a second transverse side (76), with in particular the at least one cleaning roller (14) extending at least approximately up to the first transverse side (74) and/or up to the second transverse side (76), and in that the at least one standing foot (172a, 172b) is set back with respect to the first transverse side (74) and the second transverse side (76).

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